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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 1.392 by root, Fri Oct 26 04:44:54 2007 UTC

…		…
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Socket;	8	use Socket;
9	use Storable;
10	use Event;	9	use Event;
11	use Opcode;	10	use Opcode;
12	use Safe;	11	use Safe;
13	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
14		14
15	use Coro 3.61 ();	15	use Coro 4.1 ();
16	use Coro::State;	16	use Coro::State;
17	use Coro::Handle;	17	use Coro::Handle;
18	use Coro::Event;	18	use Coro::Event;
19	use Coro::Timer;	19	use Coro::Timer;
20	use Coro::Signal;	20	use Coro::Signal;
21	use Coro::Semaphore;	21	use Coro::Semaphore;
22	use Coro::AIO;	22	use Coro::AIO;
23	use Coro::Storable;	23	use Coro::Storable;
		24	use Coro::Util ();
24		25
		26	use JSON::XS ();
25	use BDB ();	27	use BDB ();
26	use Data::Dumper;	28	use Data::Dumper;
27	use Digest::MD5;	29	use Digest::MD5;
28	use Fcntl;	30	use Fcntl;
29	use YAML::Syck ();	31	use YAML::Syck ();
30	use IO::AIO 2.32 ();	32	use IO::AIO 2.51 ();
31	use Time::HiRes;	33	use Time::HiRes;
32	use Compress::LZF;	34	use Compress::LZF;
		35	use Digest::MD5 ();
33		36
34	# configure various modules to our taste	37	# configure various modules to our taste
35	#	38	#
36	$Storable::canonical = 1; # reduce rsync transfers	39	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
…		…
49	our %COMMAND = ();	52	our %COMMAND = ();
50	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
51		54
52	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
56		60
57	our $RELOAD; # number of reloads so far	61	our $RELOAD; # number of reloads so far
58	our @EVENT;	62	our @EVENT;
…		…
76	our $NEXT_TICK;	80	our $NEXT_TICK;
77	our $NOW;	81	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	82	our $USE_FSYNC = 1; # use fsync to write maps - default off
79		83
80	our $BDB_POLL_WATCHER;	84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	88	our $DB_ENV;
82		89
83	our %CFG;	90	our %CFG;
84		91
85	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	93	our $RUNTIME;
87		94
88	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	97	our $LINK_MAP; # the special {link} map, which is always available
91		98
92	# used to convert map paths into valid unix filenames by replacing / by ∕	99	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
94		105
95	binmode STDOUT;	106	binmode STDOUT;
96	binmode STDERR;	107	binmode STDERR;
97		108
98	# read virtual server time, if available	109	# read virtual server time, if available
…		…
139		150
140	=item $cf::TICK	151	=item $cf::TICK
141		152
142	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
143		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
		164
144	=item %cf::CFG	165	=item %cf::CFG
145		166
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
147	from wherever your confdir points to.	168	from wherever your confdir points to.
148		169
…		…
150		171
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
152	returns directly I<after> the tick processing (and consequently, can only wake one process	173	returns directly I<after> the tick processing (and consequently, can only wake one process
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
		181
155	=back	182	=back
156		183
157	=cut	184	=cut
158		185
159	BEGIN {	186	BEGIN {
…		…
163	$msg .= "\n"	190	$msg .= "\n"
164	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
165		192
166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		194
168	utf8::encode $msg;
169	LOG llevError, $msg;	195	LOG llevError, $msg;
170	};	196	};
171	}	197	}
172		198
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		206
180	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	208	# within the Safe compartment.
182	for my $pkg (qw(	209	for my $pkg (qw(
183	cf::global cf::attachable	210	cf::global cf::attachable
…		…
191	}	218	}
192		219
193	$Event::DIED = sub {	220	$Event::DIED = sub {
194	warn "error in event callback: @_";	221	warn "error in event callback: @_";
195	};	222	};
		223
		224	#############################################################################
196		225
197	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
198		227
199	=over 4	228	=over 4
200		229
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	249	$d
221	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
222	}	251	}
223		252
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
227		254
228	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
229		256
230	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
231		258
232	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
		260
		261	=cut
		262
		263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		264
		265	sub to_json ($) { $json_coder->encode ($_[0]) }
		266	sub from_json ($) { $json_coder->decode ($_[0]) }
233		267
234	=item cf::lock_wait $string	268	=item cf::lock_wait $string
235		269
236	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
237		271
…		…
240	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
242	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
243	returned.	277	returned.
244		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
245	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
247		284
248	=item $locked = cf::lock_active $string	285	=item $locked = cf::lock_active $string
249		286
250	Return true if the lock is currently active, i.e. somebody has locked it.	287	Return true if the lock is currently active, i.e. somebody has locked it.
251		288
252	=cut	289	=cut
253		290
254	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
255		293
256	sub lock_wait($) {	294	sub lock_wait($) {
257	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
258		301
259	# wait for lock, if any	302	# wait for lock, if any
260	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;	305	Coro::schedule;
…		…
268		311
269	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
270	lock_wait $key;	313	lock_wait $key;
271		314
272	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
273		317
274	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
275	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
277	}	322	}
278	}	323	}
279		324
…		…
291	};	336	};
292	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
293	$guard	338	$guard
294	}	339	}
295		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
296	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
297		400
298	Currently the same as Coro::async_pool, meaning you cannot use	401	Currently the same as Coro::async_pool, meaning you cannot use
299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only	402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
300	thing you are allowed to do is call C<prio> on it.	403	thing you are allowed to do is call C<prio> on it.
…		…
303		406
304	BEGIN { *async = \&Coro::async_pool }	407	BEGIN { *async = \&Coro::async_pool }
305		408
306	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
307		410
308	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Crossfire TRT is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
311		415
312	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
315	fast or be very important.	419	fast or be very important.
…		…
318		422
319	sub sync_job(&) {	423	sub sync_job(&) {
320	my ($job) = @_;	424	my ($job) = @_;
321		425
322	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
323	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
325		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
326	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
327	# (but this is cancel-safe)	435	# (but this is cancel-safe)
328	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
329		437
330	my $busy = 1;	438	my $busy = 1;
331	my @res;	439	my @res;
332		440
333	(async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	443	@res = eval { $job->() };
335	warn $@ if $@;	444	warn $@ if $@;
336	undef $busy;	445	undef $busy;
337	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
338		447
339	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
		450	Coro::cede_notself;
		451	} else {
340	Coro::cede or Event::one_event;	452	Event::one_event;
341	}	453	}
		454	}
		455
		456	$time = Event::time - $time;
		457
		458	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		459	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		460
		461	$tick_start += $time; # do not account sync jobs to server load
342		462
343	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
344	} else {	464	} else {
345	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
346		466
…		…
366	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
367		487
368	$coro	488	$coro
369	}	489	}
370		490
371	sub write_runtime {	491	=item fork_call { }, $args
372	my $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	Crossfire TRT).
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	(?:
		1558	\ (.*?)\ (?{ $group = $^N })
		1559	| < (??{$interior}) >
		1560	)
		1561	}x;
		1562
		1563	sub expand_cfpod {
		1564	my ($self, $pod) = @_;
		1565
		1566	my $xml;
		1567
		1568	while () {
		1569	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1570	$group = $1;
		1571
		1572	$group =~ s/&/&amp;/g;
		1573	$group =~ s/</&lt;/g;
		1574
		1575	$xml .= $group;
		1576	} elsif ($pod =~ m%\G
		1577	([BCGHITU])
		1578	<
		1579	(?:
		1580	([^<>]*) (?{ $group = $^N })
		1581	| < $interior >
		1582	)
		1583	>
		1584	%gcsx
		1585	) {
		1586	my ($code, $data) = ($1, $group);
		1587
		1588	if ($code eq "B") {
		1589	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1590	} elsif ($code eq "I") {
		1591	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1592	} elsif ($code eq "U") {
		1593	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1594	} elsif ($code eq "C") {
		1595	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1596	} elsif ($code eq "T") {
		1597	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1598	} elsif ($code eq "G") {
		1599	my ($male, $female) = split /\|/, $data;
		1600	$data = $self->gender ? $female : $male;
		1601	$xml .= expand_cfpod ($self, $data);
		1602	} elsif ($code eq "H") {
		1603	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1604	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1605	"")
		1606	[$self->{hintmode}];
		1607	} else {
		1608	$xml .= "error processing '$code($data)' directive";
		1609	}
		1610	} else {
		1611	if ($pod =~ /\G(.+)/) {
		1612	warn "parse error while expanding $pod (at $1)";
		1613	}
		1614	last;
		1615	}
		1616	}
		1617
		1618	for ($xml) {
		1619	# create single paragraphs (very hackish)
		1620	s/(?<=\S)\n(?=\w)/ /g;
		1621
		1622	# compress some whitespace
		1623	s/\s+\n/\n/g; # ws line-ends
		1624	s/\n\n+/\n/g; # double lines
		1625	s/^\n+//; # beginning lines
		1626	s/\n+$//; # ending lines
		1627	}
		1628
		1629	$xml
		1630	}
		1631
		1632	sub hintmode {
		1633	$_[0]{hintmode} = $_[1] if @_ > 1;
		1634	$_[0]{hintmode}
		1635	}
		1636
1168	=item $player->ext_reply ($msgid, %msg)	1637	=item $player->ext_reply ($msgid, @msg)
1169		1638
1170	Sends an ext reply to the player.	1639	Sends an ext reply to the player.
1171		1640
1172	=cut	1641	=cut
1173		1642
1174	sub ext_reply($$%) {	1643	sub ext_reply($$@) {
1175	my ($self, $id, %msg) = @_;	1644	my ($self, $id, @msg) = @_;
1176		1645
1177	$msg{msgid} = $id;	1646	$self->ns->ext_reply ($id, @msg)
1178
1179	$self->send ("ext " . cf::to_json \%msg);
1180	}	1647	}
1181		1648
1182	=item $player->ext_event ($type, %msg)	1649	=item $player->ext_msg ($type, @msg)
1183		1650
1184	Sends an ext event to the client.	1651	Sends an ext event to the client.
1185		1652
1186	=cut	1653	=cut
1187		1654
1188	sub ext_event($$%) {	1655	sub ext_msg($$@) {
1189	my ($self, $type, %msg) = @_;	1656	my ($self, $type, @msg) = @_;
1190		1657
1191	$self->ns->ext_event ($type, %msg);	1658	$self->ns->ext_msg ($type, @msg);
1192	}	1659	}
1193		1660
1194	=head3 cf::region	1661	=head3 cf::region
1195		1662
1196	=over 4	1663	=over 4
…		…
1199		1666
1200	package cf::region;	1667	package cf::region;
1201		1668
1202	=item cf::region::find_by_path $path	1669	=item cf::region::find_by_path $path
1203		1670
1204	Tries to decuce the probable region for a map knowing only its path.	1671	Tries to decuce the likely region for a map knowing only its path.
1205		1672
1206	=cut	1673	=cut
1207		1674
1208	sub find_by_path($) {	1675	sub find_by_path($) {
1209	my ($path) = @_;	1676	my ($path) = @_;
1210		1677
1211	my ($match, $specificity);	1678	my ($match, $specificity);
1212		1679
1213	for my $region (list) {	1680	for my $region (list) {
1214	if ($region->match && $path =~ $region->match) {	1681	if ($region->{match} && $path =~ $region->{match}) {
1215	($match, $specificity) = ($region, $region->specificity)	1682	($match, $specificity) = ($region, $region->specificity)
1216	if $region->specificity > $specificity;	1683	if $region->specificity > $specificity;
1217	}	1684	}
1218	}	1685	}
1219		1686
…		…
1283	my ($self, $merge) = @_;	1750	my ($self, $merge) = @_;
1284		1751
1285	# we have to keep some variables in memory intact	1752	# we have to keep some variables in memory intact
1286	local $self->{path};	1753	local $self->{path};
1287	local $self->{load_path};	1754	local $self->{load_path};
1288	local $self->{deny_save};
1289	local $self->{deny_reset};
1290		1755
1291	$self->SUPER::thawer_merge ($merge);	1756	$self->SUPER::thawer_merge ($merge);
1292	}	1757	}
1293		1758
1294	sub normalise {	1759	sub normalise {
…		…
1341	$self->init; # pass $1 etc.	1806	$self->init; # pass $1 etc.
1342	return $self;	1807	return $self;
1343	}	1808	}
1344	}	1809	}
1345		1810
1346	Carp::carp "unable to resolve path '$path' (base '$base').";	1811	Carp::cluck "unable to resolve path '$path' (base '$base').";
1347	()	1812	()
1348	}	1813	}
1349		1814
1350	sub init {	1815	sub init {
1351	my ($self) = @_;	1816	my ($self) = @_;
…		…
1394		1859
1395	$_->change_map_light ($change)	1860	$_->change_map_light ($change)
1396	for grep $_->outdoor, values %cf::MAP;	1861	for grep $_->outdoor, values %cf::MAP;
1397	}	1862	}
1398		1863
		1864	sub decay_objects {
		1865	my ($self) = @_;
		1866
		1867	return if $self->{deny_reset};
		1868
		1869	$self->do_decay_objects;
		1870	}
		1871
1399	sub unlink_save {	1872	sub unlink_save {
1400	my ($self) = @_;	1873	my ($self) = @_;
1401		1874
1402	utf8::encode (my $save = $self->save_path);	1875	utf8::encode (my $save = $self->save_path);
1403	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1876	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1406		1879
1407	sub load_header_from($) {	1880	sub load_header_from($) {
1408	my ($self, $path) = @_;	1881	my ($self, $path) = @_;
1409		1882
1410	utf8::encode $path;	1883	utf8::encode $path;
1411	#aio_open $path, O_RDONLY, 0	1884	my $f = new_from_file cf::object::thawer $path
1412	# or return;
1413
1414	$self->_load_header ($path)
1415	or return;	1885	or return;
		1886
		1887	$self->_load_header ($f)
		1888	or return;
		1889
		1890	local $MAP_LOADING{$self->{path}} = $self;
		1891	$f->resolve_delayed_derefs;
1416		1892
1417	$self->{load_path} = $path;	1893	$self->{load_path} = $path;
1418		1894
1419	1	1895	1
1420	}	1896	}
…		…
1459	$self->load_header_orig	1935	$self->load_header_orig
1460	or return;	1936	or return;
1461	$self->prepare_orig;	1937	$self->prepare_orig;
1462	}	1938	}
1463		1939
		1940	$self->{deny_reset} = 1
		1941	if $self->no_reset;
		1942
1464	$self->default_region (cf::region::find_by_path $self->{path})	1943	$self->default_region (cf::region::find_by_path $self->{path})
1465	unless $self->default_region;	1944	unless $self->default_region;
1466		1945
1467	1	1946	1
1468	}	1947	}
…		…
1471	sub find {	1950	sub find {
1472	my ($path, $origin) = @_;	1951	my ($path, $origin) = @_;
1473		1952
1474	$path = normalise $path, $origin && $origin->path;	1953	$path = normalise $path, $origin && $origin->path;
1475		1954
		1955	cf::lock_wait "map_data:$path";#d#remove
1476	cf::lock_wait "map_find:$path";	1956	cf::lock_wait "map_find:$path";
1477		1957
1478	$cf::MAP{$path} || do {	1958	$cf::MAP{$path} || do {
1479	my $guard = cf::lock_acquire "map_find:$path";	1959	my $guard1 = cf::lock_acquire "map_find:$path";
		1960	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1961
1480	my $map = new_from_path cf::map $path	1962	my $map = new_from_path cf::map $path
1481	or return;	1963	or return;
1482		1964
1483	$map->{last_save} = $cf::RUNTIME;	1965	$map->{last_save} = $cf::RUNTIME;
1484		1966
1485	$map->load_header	1967	$map->load_header
1486	or return;	1968	or return;
1487		1969
1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1970	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1489	# doing this can freeze the server in a sync job, obviously	1971	# doing this can freeze the server in a sync job, obviously
1490	#$cf::WAIT_FOR_TICK->wait;	1972	#$cf::WAIT_FOR_TICK->wait;
		1973	undef $guard1;
		1974	undef $guard2;
1491	$map->reset;	1975	$map->reset;
1492	undef $guard;
1493	return find $path;	1976	return find $path;
1494	}	1977	}
1495		1978
1496	$cf::MAP{$path} = $map	1979	$cf::MAP{$path} = $map
1497	}	1980	}
…		…
1506	local $self->{deny_reset} = 1; # loading can take a long time	1989	local $self->{deny_reset} = 1; # loading can take a long time
1507		1990
1508	my $path = $self->{path};	1991	my $path = $self->{path};
1509		1992
1510	{	1993	{
1511	my $guard = cf::lock_acquire "map_load:$path";	1994	my $guard = cf::lock_acquire "map_data:$path";
1512		1995
		1996	return unless $self->valid;
1513	return if $self->in_memory != cf::MAP_SWAPPED;	1997	return unless $self->in_memory == cf::MAP_SWAPPED;
1514		1998
1515	$self->in_memory (cf::MAP_LOADING);	1999	$self->in_memory (cf::MAP_LOADING);
1516		2000
1517	$self->alloc;	2001	$self->alloc;
1518		2002
1519	$self->pre_load;	2003	$self->pre_load;
1520	Coro::cede;	2004	cf::cede_to_tick;
1521		2005
		2006	my $f = new_from_file cf::object::thawer $self->{load_path};
		2007	$f->skip_block;
1522	$self->_load_objects ($self->{load_path}, 1)	2008	$self->_load_objects ($f)
1523	or return;	2009	or return;
1524		2010
1525	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2011	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1526	if delete $self->{load_original};	2012	if delete $self->{load_original};
1527		2013
1528	if (my $uniq = $self->uniq_path) {	2014	if (my $uniq = $self->uniq_path) {
1529	utf8::encode $uniq;	2015	utf8::encode $uniq;
1530	if (aio_open $uniq, O_RDONLY, 0) {	2016	unless (aio_stat $uniq) {
		2017	if (my $f = new_from_file cf::object::thawer $uniq) {
1531	$self->clear_unique_items;	2018	$self->clear_unique_items;
1532	$self->_load_objects ($uniq, 0);	2019	$self->_load_objects ($f);
		2020	$f->resolve_delayed_derefs;
		2021	}
1533	}	2022	}
1534	}	2023	}
1535		2024
1536	Coro::cede;	2025	$f->resolve_delayed_derefs;
		2026
		2027	cf::cede_to_tick;
1537	# now do the right thing for maps	2028	# now do the right thing for maps
1538	$self->link_multipart_objects;	2029	$self->link_multipart_objects;
1539	$self->difficulty ($self->estimate_difficulty)	2030	$self->difficulty ($self->estimate_difficulty)
1540	unless $self->difficulty;	2031	unless $self->difficulty;
1541	Coro::cede;	2032	cf::cede_to_tick;
1542		2033
1543	unless ($self->{deny_activate}) {	2034	unless ($self->{deny_activate}) {
1544	$self->decay_objects;	2035	$self->decay_objects;
1545	$self->fix_auto_apply;	2036	$self->fix_auto_apply;
1546	$self->update_buttons;	2037	$self->update_buttons;
1547	Coro::cede;	2038	cf::cede_to_tick;
1548	$self->set_darkness_map;	2039	$self->set_darkness_map;
1549	Coro::cede;	2040	cf::cede_to_tick;
1550	$self->activate;	2041	$self->activate;
1551	}	2042	}
		2043
		2044	$self->{last_save} = $cf::RUNTIME;
		2045	$self->last_access ($cf::RUNTIME);
1552		2046
1553	$self->in_memory (cf::MAP_IN_MEMORY);	2047	$self->in_memory (cf::MAP_IN_MEMORY);
1554	}	2048	}
1555		2049
1556	$self->post_load;	2050	$self->post_load;
…		…
1560	my ($self, $ob) = @_;	2054	my ($self, $ob) = @_;
1561		2055
1562	return find "~" . $ob->name . "/" . $self->{path}	2056	return find "~" . $ob->name . "/" . $self->{path}
1563	if $self->per_player;	2057	if $self->per_player;
1564		2058
		2059	# return find "?party/" . $ob->name . "/" . $self->{path}
		2060	# if $self->per_party;
		2061
1565	$self	2062	$self
1566	}	2063	}
1567		2064
1568	# find and load all maps in the 3x3 area around a map	2065	# find and load all maps in the 3x3 area around a map
1569	sub load_diag {	2066	sub load_neighbours {
1570	my ($map) = @_;	2067	my ($map) = @_;
1571		2068
1572	my @diag; # diagonal neighbours	2069	my @neigh; # diagonal neighbours
1573		2070
1574	for (0 .. 3) {	2071	for (0 .. 3) {
1575	my $neigh = $map->tile_path ($_)	2072	my $neigh = $map->tile_path ($_)
1576	or next;	2073	or next;
1577	$neigh = find $neigh, $map	2074	$neigh = find $neigh, $map
1578	or next;	2075	or next;
1579	$neigh->load;	2076	$neigh->load;
1580		2077
		2078	push @neigh,
1581	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2079	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1582	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2080	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1583	}	2081	}
1584		2082
1585	for (@diag) {	2083	for (grep defined $_->[0], @neigh) {
		2084	my ($path, $origin) = @$_;
1586	my $neigh = find @$_	2085	my $neigh = find $path, $origin
1587	or next;	2086	or next;
1588	$neigh->load;	2087	$neigh->load;
1589	}	2088	}
1590	}	2089	}
1591		2090
…		…
1596	}	2095	}
1597		2096
1598	sub do_load_sync {	2097	sub do_load_sync {
1599	my ($map) = @_;	2098	my ($map) = @_;
1600		2099
		2100	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2101	if $Coro::current == $Coro::main;
		2102
1601	cf::sync_job { $map->load };	2103	cf::sync_job { $map->load };
1602	}	2104	}
1603		2105
1604	our %MAP_PREFETCH;	2106	our %MAP_PREFETCH;
1605	our $MAP_PREFETCHER = undef;	2107	our $MAP_PREFETCHER = undef;
1606		2108
1607	sub find_async {	2109	sub find_async {
1608	my ($path, $origin) = @_;	2110	my ($path, $origin, $load) = @_;
1609		2111
1610	$path = normalise $path, $origin && $origin->{path};	2112	$path = normalise $path, $origin && $origin->{path};
1611		2113
1612	if (my $map = $cf::MAP{$path}) {	2114	if (my $map = $cf::MAP{$path}) {
1613	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2115	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1614	}	2116	}
1615		2117
1616	undef $MAP_PREFETCH{$path};	2118	$MAP_PREFETCH{$path} |= $load;
		2119
1617	$MAP_PREFETCHER ||= cf::async {	2120	$MAP_PREFETCHER ||= cf::async {
		2121	$Coro::current->{desc} = "map prefetcher";
		2122
1618	while (%MAP_PREFETCH) {	2123	while (%MAP_PREFETCH) {
1619	for my $path (keys %MAP_PREFETCH) {	2124	while (my ($k, $v) = each %MAP_PREFETCH) {
1620	my $map = find $path	2125	if (my $map = find $k) {
1621	or next;
1622	$map->load;	2126	$map->load if $v;
		2127	}
1623		2128
1624	delete $MAP_PREFETCH{$path};	2129	delete $MAP_PREFETCH{$k};
1625	}	2130	}
1626	}	2131	}
1627	undef $MAP_PREFETCHER;	2132	undef $MAP_PREFETCHER;
1628	};	2133	};
1629	$MAP_PREFETCHER->prio (6);	2134	$MAP_PREFETCHER->prio (6);
…		…
1632	}	2137	}
1633		2138
1634	sub save {	2139	sub save {
1635	my ($self) = @_;	2140	my ($self) = @_;
1636		2141
1637	my $lock = cf::lock_acquire "map_data:" . $self->path;	2142	my $lock = cf::lock_acquire "map_data:$self->{path}";
1638		2143
1639	$self->{last_save} = $cf::RUNTIME;	2144	$self->{last_save} = $cf::RUNTIME;
1640		2145
1641	return unless $self->dirty;	2146	return unless $self->dirty;
1642		2147
…		…
1648	return if $self->{deny_save};	2153	return if $self->{deny_save};
1649		2154
1650	local $self->{last_access} = $self->last_access;#d#	2155	local $self->{last_access} = $self->last_access;#d#
1651		2156
1652	cf::async {	2157	cf::async {
		2158	$Coro::current->{desc} = "map player save";
1653	$_->contr->save for $self->players;	2159	$_->contr->save for $self->players;
1654	};	2160	};
1655		2161
1656	if ($uniq) {	2162	if ($uniq) {
1657	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2163	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1665	my ($self) = @_;	2171	my ($self) = @_;
1666		2172
1667	# save first because save cedes	2173	# save first because save cedes
1668	$self->save;	2174	$self->save;
1669		2175
1670	my $lock = cf::lock_acquire "map_data:" . $self->path;	2176	my $lock = cf::lock_acquire "map_data:$self->{path}";
1671		2177
1672	return if $self->players;	2178	return if $self->players;
1673	return if $self->in_memory != cf::MAP_IN_MEMORY;	2179	return if $self->in_memory != cf::MAP_IN_MEMORY;
1674	return if $self->{deny_save};	2180	return if $self->{deny_save};
1675		2181
		2182	$self->in_memory (cf::MAP_SWAPPED);
		2183
		2184	$self->deactivate;
		2185	$_->clear_links_to ($self) for values %cf::MAP;
1676	$self->clear;	2186	$self->clear;
1677	$self->in_memory (cf::MAP_SWAPPED);
1678	}	2187	}
1679		2188
1680	sub reset_at {	2189	sub reset_at {
1681	my ($self) = @_;	2190	my ($self) = @_;
1682		2191
1683	# TODO: safety, remove and allow resettable per-player maps	2192	# 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};	2193	return 1e99 if $self->{deny_reset};
1686		2194
1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2195	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2196	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1689		2197
…		…
1700	my ($self) = @_;	2208	my ($self) = @_;
1701		2209
1702	my $lock = cf::lock_acquire "map_data:$self->{path}";	2210	my $lock = cf::lock_acquire "map_data:$self->{path}";
1703		2211
1704	return if $self->players;	2212	return if $self->players;
1705	return if $self->isa ("ext::map_per_player");#d#
1706		2213
1707	warn "resetting map ", $self->path;#d#	2214	warn "resetting map ", $self->path;
1708		2215
1709	$self->in_memory (cf::MAP_SWAPPED);	2216	$self->in_memory (cf::MAP_SWAPPED);
1710		2217
1711	# need to save uniques path	2218	# need to save uniques path
1712	unless ($self->{deny_save}) {	2219	unless ($self->{deny_save}) {
…		…
1716	if $uniq;	2223	if $uniq;
1717	}	2224	}
1718		2225
1719	delete $cf::MAP{$self->path};	2226	delete $cf::MAP{$self->path};
1720		2227
		2228	$self->deactivate;
		2229	$_->clear_links_to ($self) for values %cf::MAP;
1721	$self->clear;	2230	$self->clear;
1722
1723	$_->clear_links_to ($self) for values %cf::MAP;
1724		2231
1725	$self->unlink_save;	2232	$self->unlink_save;
1726	$self->destroy;	2233	$self->destroy;
1727	}	2234	}
1728		2235
1729	my $nuke_counter = "aaaa";	2236	my $nuke_counter = "aaaa";
1730		2237
1731	sub nuke {	2238	sub nuke {
1732	my ($self) = @_;	2239	my ($self) = @_;
1733		2240
		2241	{
		2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2243
1734	delete $cf::MAP{$self->path};	2244	delete $cf::MAP{$self->path};
1735		2245
1736	$self->unlink_save;	2246	$self->unlink_save;
1737		2247
1738	bless $self, "cf::map";	2248	bless $self, "cf::map";
1739	delete $self->{deny_reset};	2249	delete $self->{deny_reset};
1740	$self->{deny_save} = 1;	2250	$self->{deny_save} = 1;
1741	$self->reset_timeout (1);	2251	$self->reset_timeout (1);
1742	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2252	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1743		2253
1744	$cf::MAP{$self->path} = $self;	2254	$cf::MAP{$self->path} = $self;
		2255	}
1745		2256
1746	$self->reset; # polite request, might not happen	2257	$self->reset; # polite request, might not happen
		2258	}
		2259
		2260	=item $maps = cf::map::tmp_maps
		2261
		2262	Returns an arrayref with all map paths of currently instantiated and saved
		2263	maps. May block.
		2264
		2265	=cut
		2266
		2267	sub tmp_maps() {
		2268	[
		2269	map {
		2270	utf8::decode $_;
		2271	/\.map$/
		2272	? normalise $_
		2273	: ()
		2274	} @{ aio_readdir $TMPDIR or [] }
		2275	]
		2276	}
		2277
		2278	=item $maps = cf::map::random_maps
		2279
		2280	Returns an arrayref with all map paths of currently instantiated and saved
		2281	random maps. May block.
		2282
		2283	=cut
		2284
		2285	sub random_maps() {
		2286	[
		2287	map {
		2288	utf8::decode $_;
		2289	/\.map$/
		2290	? normalise "?random/$_"
		2291	: ()
		2292	} @{ aio_readdir $RANDOMDIR or [] }
		2293	]
1747	}	2294	}
1748		2295
1749	=item cf::map::unique_maps	2296	=item cf::map::unique_maps
1750		2297
1751	Returns an arrayref of paths of all shared maps that have	2298	Returns an arrayref of paths of all shared maps that have
1752	instantiated unique items. May block.	2299	instantiated unique items. May block.
1753		2300
1754	=cut	2301	=cut
1755		2302
1756	sub unique_maps() {	2303	sub unique_maps() {
1757	my $files = aio_readdir $UNIQUEDIR	2304	[
1758	or return;	2305	map {
1759
1760	my @paths;
1761
1762	for (@$files) {
1763	utf8::decode $_;	2306	utf8::decode $_;
1764	next if /\.pst$/;	2307	/\.map$/
1765	next unless /^$PATH_SEP/o;	2308	? normalise $_
1766		2309	: ()
1767	push @paths, cf::map::normalise $_;	2310	} @{ aio_readdir $UNIQUEDIR or [] }
1768	}	2311	]
1769
1770	\@paths
1771	}	2312	}
1772		2313
1773	package cf;	2314	package cf;
1774		2315
1775	=back	2316	=back
…		…
1793	map { $_, inv_recursive_ $_->inv } @_	2334	map { $_, inv_recursive_ $_->inv } @_
1794	}	2335	}
1795		2336
1796	sub inv_recursive {	2337	sub inv_recursive {
1797	inv_recursive_ inv $_[0]	2338	inv_recursive_ inv $_[0]
		2339	}
		2340
		2341	=item $ref = $ob->ref
		2342
		2343	creates and returns a persistent reference to an objetc that can be stored as a string.
		2344
		2345	=item $ob = cf::object::deref ($refstring)
		2346
		2347	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2348	even if the object actually exists. May block.
		2349
		2350	=cut
		2351
		2352	sub deref {
		2353	my ($ref) = @_;
		2354
		2355	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2356	my ($uuid, $name) = ($1, $2);
		2357	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2358	or return;
		2359	$pl->ob->uuid eq $uuid
		2360	or return;
		2361
		2362	$pl->ob
		2363	} else {
		2364	warn "$ref: cannot resolve object reference\n";
		2365	undef
		2366	}
1798	}	2367	}
1799		2368
1800	package cf;	2369	package cf;
1801		2370
1802	=back	2371	=back
…		…
1821		2390
1822	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2391	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1823		2392
1824	if ($self->{record_replies}) {	2393	if ($self->{record_replies}) {
1825	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2394	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2395
1826	} else {	2396	} else {
		2397	my $pl = $self->contr;
		2398
		2399	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2400	my $dialog = $pl->{npc_dialog};
		2401	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2402
		2403	} else {
1827	$msg = $npc->name . " says: $msg" if $npc;	2404	$msg = $npc->name . " says: $msg" if $npc;
1828	$self->message ($msg, $flags);	2405	$self->message ($msg, $flags);
		2406	}
1829	}	2407	}
		2408	}
		2409
		2410	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2411
		2412	=cut
		2413
		2414	sub cf::object::send_msg {
		2415	my $pl = shift->contr
		2416	or return;
		2417	$pl->send_msg (@_);
1830	}	2418	}
1831		2419
1832	=item $player_object->may ("access")	2420	=item $player_object->may ("access")
1833		2421
1834	Returns wether the given player is authorized to access resource "access"	2422	Returns wether the given player is authorized to access resource "access"
…		…
1881	$self->deactivate_recursive;	2469	$self->deactivate_recursive;
1882		2470
1883	return if UNIVERSAL::isa $self->map, "ext::map_link";	2471	return if UNIVERSAL::isa $self->map, "ext::map_link";
1884		2472
1885	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2473	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1886	if $self->map;	2474	if $self->map && $self->map->{path} ne "{link}";
1887		2475
1888	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2476	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1889	}	2477	}
1890		2478
1891	sub cf::object::player::leave_link {	2479	sub cf::object::player::leave_link {
1892	my ($self, $map, $x, $y) = @_;	2480	my ($self, $map, $x, $y) = @_;
		2481
		2482	return unless $self->contr->active;
1893		2483
1894	my $link_pos = delete $self->{_link_pos};	2484	my $link_pos = delete $self->{_link_pos};
1895		2485
1896	unless ($map) {	2486	unless ($map) {
1897	# restore original map position	2487	# restore original map position
…		…
1911	# use -1 or undef as default coordinates, not 0, 0	2501	# use -1 or undef as default coordinates, not 0, 0
1912	($x, $y) = ($map->enter_x, $map->enter_y)	2502	($x, $y) = ($map->enter_x, $map->enter_y)
1913	if $x <=0 && $y <= 0;	2503	if $x <=0 && $y <= 0;
1914		2504
1915	$map->load;	2505	$map->load;
1916	$map->load_diag;	2506	$map->load_neighbours;
1917		2507
1918	return unless $self->contr->active;	2508	return unless $self->contr->active;
1919	$self->activate_recursive;	2509	$self->activate_recursive;
1920		2510
1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2511	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1922	$self->enter_map ($map, $x, $y);	2512	$self->enter_map ($map, $x, $y);
1923	}	2513	}
1924		2514
1925	cf::player->attach (	2515	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1926	on_logout => sub {
1927	my ($pl) = @_;
1928		2516
1929	# abort map switching before logout	2517	Moves the player to the given map-path and coordinates by first freezing
1930	if ($pl->ob->{_link_pos}) {	2518	her, loading and preparing them map, calling the provided $check callback
1931	cf::sync_job {	2519	that has to return the map if sucecssful, and then unfreezes the player on
1932	$pl->ob->leave_link	2520	the new (success) or old (failed) map position. In either case, $done will
1933	};	2521	be called at the end of this process.
1934	}
1935	},
1936	on_login => sub {
1937	my ($pl) = @_;
1938		2522
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	2523	=cut
		2524
		2525	our $GOTOGEN;
1960		2526
1961	sub cf::object::player::goto {	2527	sub cf::object::player::goto {
1962	my ($self, $path, $x, $y) = @_;	2528	my ($self, $path, $x, $y, $check, $done) = @_;
		2529
		2530	# do generation counting so two concurrent goto's will be executed in-order
		2531	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1963		2532
1964	$self->enter_link;	2533	$self->enter_link;
1965		2534
1966	(async {	2535	(async {
		2536	$Coro::current->{desc} = "player::goto $path $x $y";
		2537
		2538	# *tag paths override both path and x|y
		2539	if ($path =~ /^\*(.*)$/) {
		2540	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2541	my $ob = $obs[rand @obs];
		2542
		2543	# see if we actually can go there
		2544	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2545	$ob = $obs[rand @obs];
		2546	} else {
		2547	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2548	}
		2549	# else put us there anyways for now #d#
		2550
		2551	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2552	} else {
		2553	($path, $x, $y) = (undef, undef, undef);
		2554	}
		2555	}
		2556
1967	my $map = eval {	2557	my $map = eval {
1968	my $map = cf::map::find $path;	2558	my $map = defined $path ? cf::map::find $path : undef;
		2559
		2560	if ($map) {
1969	$map = $map->customise_for ($self) if $map;	2561	$map = $map->customise_for ($self);
		2562	$map = $check->($map) if $check && $map;
		2563	} else {
		2564	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2565	}
		2566
1970	$map	2567	$map
		2568	};
		2569
		2570	if ($@) {
		2571	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2572	LOG llevError | logBacktrace, Carp::longmess $@;
1971	} or	2573	}
1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1973		2574
		2575	if ($gen == $self->{_goto_generation}) {
		2576	delete $self->{_goto_generation};
1974	$self->leave_link ($map, $x, $y);	2577	$self->leave_link ($map, $x, $y);
		2578	}
		2579
		2580	$done->() if $done;
1975	})->prio (1);	2581	})->prio (1);
1976	}	2582	}
1977		2583
1978	=item $player_object->enter_exit ($exit_object)	2584	=item $player_object->enter_exit ($exit_object)
1979		2585
…		…
2048	my $hp = $exit->stats->hp;	2654	my $hp = $exit->stats->hp;
2049	my $sp = $exit->stats->sp;	2655	my $sp = $exit->stats->sp;
2050		2656
2051	$self->enter_link;	2657	$self->enter_link;
2052		2658
		2659	# if exit is damned, update players death & WoR home-position
		2660	$self->contr->savebed ($slaying, $hp, $sp)
		2661	if $exit->flag (FLAG_DAMNED);
		2662
2053	(async {	2663	(async {
		2664	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2665
2054	$self->deactivate_recursive; # just to be sure	2666	$self->deactivate_recursive; # just to be sure
2055	unless (eval {	2667	unless (eval {
2056	$self->goto ($slaying, $hp, $sp);	2668	$self->goto ($slaying, $hp, $sp);
2057		2669
2058	1;	2670	1;
…		…
2084		2696
2085	utf8::encode $text;	2697	utf8::encode $text;
2086	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2698	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2087	}	2699	}
2088		2700
		2701	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2702
		2703	Send a drawinfo or msg packet to the client, formatting the msg for the
		2704	client if neccessary. C<$type> should be a string identifying the type of
		2705	the message, with C<log> being the default. If C<$color> is negative, suppress
		2706	the message unless the client supports the msg packet.
		2707
		2708	=cut
		2709
		2710	# non-persistent channels (usually the info channel)
		2711	our %CHANNEL = (
		2712	"c/identify" => {
		2713	id => "infobox",
		2714	title => "Identify",
		2715	reply => undef,
		2716	tooltip => "Items recently identified",
		2717	},
		2718	"c/examine" => {
		2719	id => "infobox",
		2720	title => "Examine",
		2721	reply => undef,
		2722	tooltip => "Signs and other items you examined",
		2723	},
		2724	"c/book" => {
		2725	id => "infobox",
		2726	title => "Book",
		2727	reply => undef,
		2728	tooltip => "The contents of a note or book",
		2729	},
		2730	"c/lookat" => {
		2731	id => "infobox",
		2732	title => "Look",
		2733	reply => undef,
		2734	tooltip => "What you saw there",
		2735	},
		2736	"c/who" => {
		2737	id => "infobox",
		2738	title => "Players",
		2739	reply => undef,
		2740	tooltip => "Shows players who are currently online",
		2741	},
		2742	"c/body" => {
		2743	id => "infobox",
		2744	title => "Body Parts",
		2745	reply => undef,
		2746	tooltip => "Shows which body parts you posess and are available",
		2747	},
		2748	"c/uptime" => {
		2749	id => "infobox",
		2750	title => "Uptime",
		2751	reply => undef,
		2752	tooltip => "How long the server has been running since last restart",
		2753	},
		2754	"c/mapinfo" => {
		2755	id => "infobox",
		2756	title => "Map Info",
		2757	reply => undef,
		2758	tooltip => "Information related to the maps",
		2759	},
		2760	);
		2761
		2762	sub cf::client::send_msg {
		2763	my ($self, $channel, $msg, $color, @extra) = @_;
		2764
		2765	$msg = $self->pl->expand_cfpod ($msg);
		2766
		2767	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2768
		2769	# check predefined channels, for the benefit of C
		2770	if ($CHANNEL{$channel}) {
		2771	$channel = $CHANNEL{$channel};
		2772
		2773	$self->ext_msg (channel_info => $channel)
		2774	if $self->can_msg;
		2775
		2776	$channel = $channel->{id};
		2777
		2778	} elsif (ref $channel) {
		2779	# send meta info to client, if not yet sent
		2780	unless (exists $self->{channel}{$channel->{id}}) {
		2781	$self->{channel}{$channel->{id}} = $channel;
		2782	$self->ext_msg (channel_info => $channel)
		2783	if $self->can_msg;
		2784	}
		2785
		2786	$channel = $channel->{id};
		2787	}
		2788
		2789	return unless @extra || length $msg;
		2790
		2791	if ($self->can_msg) {
		2792	# default colour, mask it out
		2793	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2794	if $color & cf::NDI_DEF;
		2795
		2796	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2797	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2798	} else {
		2799	if ($color >= 0) {
		2800	# replace some tags by gcfclient-compatible ones
		2801	for ($msg) {
		2802	1 while
		2803	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2804	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2805	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2806	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2807	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2808	}
		2809
		2810	$color &= cf::NDI_COLOR_MASK;
		2811
		2812	utf8::encode $msg;
		2813
		2814	if (0 && $msg =~ /\[/) {
		2815	# COMMAND/INFO
		2816	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2817	} else {
		2818	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2819	$self->send_packet ("drawinfo $color $msg")
		2820	}
		2821	}
		2822	}
		2823	}
		2824
2089	=item $client->ext_event ($type, %msg)	2825	=item $client->ext_msg ($type, @msg)
2090		2826
2091	Sends an exti event to the client.	2827	Sends an ext event to the client.
2092		2828
2093	=cut	2829	=cut
2094		2830
2095	sub cf::client::ext_event($$%) {	2831	sub cf::client::ext_msg($$@) {
2096	my ($self, $type, %msg) = @_;	2832	my ($self, $type, @msg) = @_;
2097		2833
		2834	if ($self->extcmd == 2) {
		2835	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2836	} elsif ($self->extcmd == 1) { # TODO: remove
2098	$msg{msgtype} = "event_$type";	2837	push @msg, msgtype => "event_$type";
2099	$self->send_packet ("ext " . cf::to_json \%msg);	2838	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2839	}
		2840	}
		2841
		2842	=item $client->ext_reply ($msgid, @msg)
		2843
		2844	Sends an ext reply to the client.
		2845
		2846	=cut
		2847
		2848	sub cf::client::ext_reply($$@) {
		2849	my ($self, $id, @msg) = @_;
		2850
		2851	if ($self->extcmd == 2) {
		2852	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2853	} elsif ($self->extcmd == 1) {
		2854	#TODO: version 1, remove
		2855	unshift @msg, msgtype => "reply", msgid => $id;
		2856	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2857	}
2100	}	2858	}
2101		2859
2102	=item $success = $client->query ($flags, "text", \&cb)	2860	=item $success = $client->query ($flags, "text", \&cb)
2103		2861
2104	Queues a query to the client, calling the given callback with	2862	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>,	2863	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>.	2864	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2107		2865
2108	Queries can fail, so check the return code. Or don't, as queries will become	2866	Queries can fail, so check the return code. Or don't, as queries will
2109	reliable at some point in the future.	2867	become reliable at some point in the future.
2110		2868
2111	=cut	2869	=cut
2112		2870
2113	sub cf::client::query {	2871	sub cf::client::query {
2114	my ($self, $flags, $text, $cb) = @_;	2872	my ($self, $flags, $text, $cb) = @_;
…		…
2122	utf8::encode $text;	2880	utf8::encode $text;
2123	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2881	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2124		2882
2125	$self->send_packet ($self->{query_queue}[0][0])	2883	$self->send_packet ($self->{query_queue}[0][0])
2126	if @{ $self->{query_queue} } == 1;	2884	if @{ $self->{query_queue} } == 1;
		2885
		2886	1
2127	}	2887	}
2128		2888
2129	cf::client->attach (	2889	cf::client->attach (
		2890	on_connect => sub {
		2891	my ($ns) = @_;
		2892
		2893	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2894	},
2130	on_reply => sub {	2895	on_reply => sub {
2131	my ($ns, $msg) = @_;	2896	my ($ns, $msg) = @_;
2132		2897
2133	# this weird shuffling is so that direct followup queries	2898	# this weird shuffling is so that direct followup queries
2134	# get handled first	2899	# get handled first
…		…
2146	} else {	2911	} else {
2147	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2912	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2148	}	2913	}
2149	}	2914	}
2150	},	2915	},
		2916	on_exticmd => sub {
		2917	my ($ns, $buf) = @_;
		2918
		2919	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2920
		2921	if (ref $msg) {
		2922	my ($type, $reply, @payload) =
		2923	"ARRAY" eq ref $msg
		2924	? @$msg
		2925	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2926
		2927	my @reply;
		2928
		2929	if (my $cb = $EXTICMD{$type}) {
		2930	@reply = $cb->($ns, @payload);
		2931	}
		2932
		2933	$ns->ext_reply ($reply, @reply)
		2934	if $reply;
		2935
		2936	} else {
		2937	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2938	}
		2939
		2940	cf::override;
		2941	},
2151	);	2942	);
2152		2943
2153	=item $client->async (\&cb)	2944	=item $client->async (\&cb)
2154		2945
2155	Create a new coroutine, running the specified callback. The coroutine will	2946	Create a new coroutine, running the specified callback. The coroutine will
…		…
2196	our $safe = new Safe "safe";	2987	our $safe = new Safe "safe";
2197	our $safe_hole = new Safe::Hole;	2988	our $safe_hole = new Safe::Hole;
2198		2989
2199	$SIG{FPE} = 'IGNORE';	2990	$SIG{FPE} = 'IGNORE';
2200		2991
2201	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2992	$safe->permit_only (Opcode::opset qw(
		2993	:base_core :base_mem :base_orig :base_math
		2994	grepstart grepwhile mapstart mapwhile
		2995	sort time
		2996	));
2202		2997
2203	# here we export the classes and methods available to script code	2998	# here we export the classes and methods available to script code
2204		2999
2205	=pod	3000	=pod
2206		3001
2207	The following functions and methods are available within a safe environment:	3002	The following functions and methods are available within a safe environment:
2208		3003
2209	cf::object contr pay_amount pay_player map	3004	cf::object
		3005	contr pay_amount pay_player map x y force_find force_add destroy
		3006	insert remove name archname title slaying race decrease_ob_nr
		3007
2210	cf::object::player player	3008	cf::object::player
2211	cf::player peaceful	3009	player
2212	cf::map trigger	3010
		3011	cf::player
		3012	peaceful
		3013
		3014	cf::map
		3015	trigger
2213		3016
2214	=cut	3017	=cut
2215		3018
2216	for (	3019	for (
2217	["cf::object" => qw(contr pay_amount pay_player map)],	3020	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3021	insert remove inv name archname title slaying race
		3022	decrease_ob_nr destroy)],
2218	["cf::object::player" => qw(player)],	3023	["cf::object::player" => qw(player)],
2219	["cf::player" => qw(peaceful)],	3024	["cf::player" => qw(peaceful)],
2220	["cf::map" => qw(trigger)],	3025	["cf::map" => qw(trigger)],
2221	) {	3026	) {
2222	no strict 'refs';	3027	no strict 'refs';
…		…
2293	=back	3098	=back
2294		3099
2295	=cut	3100	=cut
2296		3101
2297	#############################################################################	3102	#############################################################################
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 $@;
2465	_exit 0;
2466	}
2467	}
2468
2469
2470
2471	#############################################################################
2472	# the server's init and main functions	3103	# the server's init and main functions
2473		3104
2474	sub load_facedata($) {	3105	sub load_facedata($) {
2475	my ($path) = @_;	3106	my ($path) = @_;
		3107
		3108	# HACK to clear player env face cache, we need some signal framework
		3109	# for this (global event?)
		3110	%ext::player_env::MUSIC_FACE_CACHE = ();
		3111
		3112	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2476		3113
2477	warn "loading facedata from $path\n";	3114	warn "loading facedata from $path\n";
2478		3115
2479	my $facedata;	3116	my $facedata;
2480	0 < aio_load $path, $facedata	3117	0 < aio_load $path, $facedata
…		…
2483	$facedata = Coro::Storable::thaw $facedata;	3120	$facedata = Coro::Storable::thaw $facedata;
2484		3121
2485	$facedata->{version} == 2	3122	$facedata->{version} == 2
2486	or cf::cleanup "$path: version mismatch, cannot proceed.";	3123	or cf::cleanup "$path: version mismatch, cannot proceed.";
2487		3124
		3125	# patch in the exptable
		3126	$facedata->{resource}{"res/exp_table"} = {
		3127	type => FT_RSRC,
		3128	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3129	};
		3130	cf::cede_to_tick;
		3131
2488	{	3132	{
2489	my $faces = $facedata->{faceinfo};	3133	my $faces = $facedata->{faceinfo};
2490		3134
2491	while (my ($face, $info) = each %$faces) {	3135	while (my ($face, $info) = each %$faces) {
2492	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3136	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2493	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3137	cf::face::set_visibility $idx, $info->{visibility};
		3138	cf::face::set_magicmap $idx, $info->{magicmap};
2494	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3139	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2495	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3140	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2496	Coro::cede;	3141
		3142	cf::cede_to_tick;
2497	}	3143	}
2498		3144
2499	while (my ($face, $info) = each %$faces) {	3145	while (my ($face, $info) = each %$faces) {
2500	next unless $info->{smooth};	3146	next unless $info->{smooth};
2501	my $idx = cf::face::find $face	3147	my $idx = cf::face::find $face
2502	or next;	3148	or next;
2503	if (my $smooth = cf::face::find $info->{smooth}) {	3149	if (my $smooth = cf::face::find $info->{smooth}) {
		3150	cf::face::set_smooth $idx, $smooth;
2504	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3151	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2505	} else {	3152	} else {
2506	warn "smooth face '$info->{smooth}' not found for face '$face'";	3153	warn "smooth face '$info->{smooth}' not found for face '$face'";
2507	}	3154	}
2508	Coro::cede;	3155
		3156	cf::cede_to_tick;
2509	}	3157	}
2510	}	3158	}
2511		3159
2512	{	3160	{
2513	my $anims = $facedata->{animinfo};	3161	my $anims = $facedata->{animinfo};
2514		3162
2515	while (my ($anim, $info) = each %$anims) {	3163	while (my ($anim, $info) = each %$anims) {
2516	cf::anim::set $anim, $info->{frames}, $info->{facings};	3164	cf::anim::set $anim, $info->{frames}, $info->{facings};
2517	Coro::cede;	3165	cf::cede_to_tick;
2518	}	3166	}
2519		3167
2520	cf::anim::invalidate_all; # d'oh	3168	cf::anim::invalidate_all; # d'oh
2521	}	3169	}
2522		3170
		3171	{
		3172	# TODO: for gcfclient pleasure, we should give resources
		3173	# that gcfclient doesn't grok a >10000 face index.
		3174	my $res = $facedata->{resource};
		3175
		3176	my $soundconf = delete $res->{"res/sound.conf"};
		3177
		3178	while (my ($name, $info) = each %$res) {
		3179	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3180	my $data;
		3181
		3182	if ($info->{type} & 1) {
		3183	# prepend meta info
		3184
		3185	my $meta = $enc->encode ({
		3186	name => $name,
		3187	%{ $info->{meta} || {} },
		3188	});
		3189
		3190	$data = pack "(w/a*)*", $meta, $info->{data};
		3191	} else {
		3192	$data = $info->{data};
		3193	}
		3194
		3195	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3196	cf::face::set_type $idx, $info->{type};
		3197
		3198	cf::cede_to_tick;
		3199	}
		3200
		3201	if ($soundconf) {
		3202	$soundconf = $enc->decode (delete $soundconf->{data});
		3203
		3204	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3205	my $sound = $soundconf->{compat}[$_]
		3206	or next;
		3207
		3208	my $face = cf::face::find "sound/$sound->[1]";
		3209	cf::sound::set $sound->[0] => $face;
		3210	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3211	}
		3212
		3213	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3214	my $face = cf::face::find "sound/$v";
		3215	cf::sound::set $k => $face;
		3216	}
		3217	}
		3218	}
		3219
2523	1	3220	1
2524	}	3221	}
2525		3222
		3223	register_exticmd fx_want => sub {
		3224	my ($ns, $want) = @_;
		3225
		3226	while (my ($k, $v) = each %$want) {
		3227	$ns->fx_want ($k, $v);
		3228	}
		3229	};
		3230
2526	sub reload_regions {	3231	sub reload_regions {
		3232	# HACK to clear player env face cache, we need some signal framework
		3233	# for this (global event?)
		3234	%ext::player_env::MUSIC_FACE_CACHE = ();
		3235
2527	load_resource_file "$MAPDIR/regions"	3236	load_resource_file "$MAPDIR/regions"
2528	or die "unable to load regions file\n";	3237	or die "unable to load regions file\n";
		3238
		3239	for (cf::region::list) {
		3240	$_->{match} = qr/$_->{match}/
		3241	if exists $_->{match};
		3242	}
2529	}	3243	}
2530		3244
2531	sub reload_facedata {	3245	sub reload_facedata {
2532	load_facedata "$DATADIR/facedata"	3246	load_facedata "$DATADIR/facedata"
2533	or die "unable to load facedata\n";	3247	or die "unable to load facedata\n";
2534	}	3248	}
2535		3249
2536	sub reload_archetypes {	3250	sub reload_archetypes {
2537	load_resource_file "$DATADIR/archetypes"	3251	load_resource_file "$DATADIR/archetypes"
2538	or die "unable to load archetypes\n";	3252	or die "unable to load archetypes\n";
		3253	#d# NEED to laod twice to resolve forward references
		3254	# this really needs to be done in an extra post-pass
		3255	# (which needs to be synchronous, so solve it differently)
		3256	load_resource_file "$DATADIR/archetypes"
		3257	or die "unable to load archetypes\n";
2539	}	3258	}
2540		3259
2541	sub reload_treasures {	3260	sub reload_treasures {
2542	load_resource_file "$DATADIR/treasures"	3261	load_resource_file "$DATADIR/treasures"
2543	or die "unable to load treasurelists\n";	3262	or die "unable to load treasurelists\n";
…		…
2546	sub reload_resources {	3265	sub reload_resources {
2547	warn "reloading resource files...\n";	3266	warn "reloading resource files...\n";
2548		3267
2549	reload_regions;	3268	reload_regions;
2550	reload_facedata;	3269	reload_facedata;
		3270	#reload_archetypes;#d#
2551	reload_archetypes;	3271	reload_archetypes;
2552	reload_treasures;	3272	reload_treasures;
2553		3273
2554	warn "finished reloading resource files\n";	3274	warn "finished reloading resource files\n";
2555	}	3275	}
2556		3276
2557	sub init {	3277	sub init {
2558	reload_resources;	3278	reload_resources;
2559	}	3279	}
2560		3280
2561	sub cfg_load {	3281	sub reload_config {
2562	open my $fh, "<:utf8", "$CONFDIR/config"	3282	open my $fh, "<:utf8", "$CONFDIR/config"
2563	or return;	3283	or return;
2564		3284
2565	local $/;	3285	local $/;
2566	*CFG = YAML::Syck::Load <$fh>;	3286	*CFG = YAML::Syck::Load <$fh>;
…		…
2582	sub main {	3302	sub main {
2583	# we must not ever block the main coroutine	3303	# we must not ever block the main coroutine
2584	local $Coro::idle = sub {	3304	local $Coro::idle = sub {
2585	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3305	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2586	(async {	3306	(async {
		3307	$Coro::current->{desc} = "IDLE BUG HANDLER";
2587	Event::one_event;	3308	Event::one_event;
2588	})->prio (Coro::PRIO_MAX);	3309	})->prio (Coro::PRIO_MAX);
2589	};	3310	};
2590		3311
2591	cfg_load;	3312	reload_config;
2592	db_init;	3313	db_init;
2593	load_extensions;	3314	load_extensions;
2594		3315
2595	$TICK_WATCHER->start;	3316	$TICK_WATCHER->start;
2596	Event::loop;	3317	Event::loop;
…		…
2612	},	3333	},
2613	);	3334	);
2614	}	3335	}
2615	}	3336	}
2616		3337
		3338	sub write_runtime {
		3339	my $runtime = "$LOCALDIR/runtime";
		3340
		3341	# first touch the runtime file to show we are still running:
		3342	# the fsync below can take a very very long time.
		3343
		3344	IO::AIO::aio_utime $runtime, undef, undef;
		3345
		3346	my $guard = cf::lock_acquire "write_runtime";
		3347
		3348	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3349	or return;
		3350
		3351	my $value = $cf::RUNTIME + 90 + 10;
		3352	# 10 is the runtime save interval, for a monotonic clock
		3353	# 60 allows for the watchdog to kill the server.
		3354
		3355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3356	and return;
		3357
		3358	# always fsync - this file is important
		3359	aio_fsync $fh
		3360	and return;
		3361
		3362	# touch it again to show we are up-to-date
		3363	aio_utime $fh, undef, undef;
		3364
		3365	close $fh
		3366	or return;
		3367
		3368	aio_rename "$runtime~", $runtime
		3369	and return;
		3370
		3371	warn "runtime file written.\n";
		3372
		3373	1
		3374	}
		3375
2617	sub emergency_save() {	3376	sub emergency_save() {
2618	my $freeze_guard = cf::freeze_mainloop;	3377	my $freeze_guard = cf::freeze_mainloop;
2619		3378
2620	warn "enter emergency perl save\n";	3379	warn "enter emergency perl save\n";
2621		3380
…		…
2625	# and maps saved/destroyed asynchronously.	3384	# and maps saved/destroyed asynchronously.
2626	warn "begin emergency player save\n";	3385	warn "begin emergency player save\n";
2627	for my $login (keys %cf::PLAYER) {	3386	for my $login (keys %cf::PLAYER) {
2628	my $pl = $cf::PLAYER{$login} or next;	3387	my $pl = $cf::PLAYER{$login} or next;
2629	$pl->valid or next;	3388	$pl->valid or next;
		3389	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2630	$pl->save;	3390	$pl->save;
2631	}	3391	}
2632	warn "end emergency player save\n";	3392	warn "end emergency player save\n";
2633		3393
2634	warn "begin emergency map save\n";	3394	warn "begin emergency map save\n";
…		…
2682		3442
2683	warn "flushing outstanding aio requests";	3443	warn "flushing outstanding aio requests";
2684	for (;;) {	3444	for (;;) {
2685	BDB::flush;	3445	BDB::flush;
2686	IO::AIO::flush;	3446	IO::AIO::flush;
2687	Coro::cede;	3447	Coro::cede_notself;
2688	last unless IO::AIO::nreqs || BDB::nreqs;	3448	last unless IO::AIO::nreqs || BDB::nreqs;
2689	warn "iterate...";	3449	warn "iterate...";
2690	}	3450	}
2691		3451
2692	++$RELOAD;	3452	++$RELOAD;
…		…
2696	%EXT_CORO = ();	3456	%EXT_CORO = ();
2697		3457
2698	warn "removing commands";	3458	warn "removing commands";
2699	%COMMAND = ();	3459	%COMMAND = ();
2700		3460
2701	warn "removing ext commands";	3461	warn "removing ext/exti commands";
2702	%EXTCMD = ();	3462	%EXTCMD = ();
		3463	%EXTICMD = ();
2703		3464
2704	warn "unloading/nuking all extensions";	3465	warn "unloading/nuking all extensions";
2705	for my $pkg (@EXTS) {	3466	for my $pkg (@EXTS) {
2706	warn "... unloading $pkg";	3467	warn "... unloading $pkg";
2707		3468
…		…
2750	warn "reloading cf.pm";	3511	warn "reloading cf.pm";
2751	require cf;	3512	require cf;
2752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3513	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2753		3514
2754	warn "loading config and database again";	3515	warn "loading config and database again";
2755	cf::cfg_load;	3516	cf::reload_config;
2756		3517
2757	warn "loading extensions";	3518	warn "loading extensions";
2758	cf::load_extensions;	3519	cf::load_extensions;
2759		3520
2760	warn "reattaching attachments to objects/players";	3521	warn "reattaching attachments to objects/players";
…		…
2796	register_command "reload" => sub {	3557	register_command "reload" => sub {
2797	my ($who, $arg) = @_;	3558	my ($who, $arg) = @_;
2798		3559
2799	if ($who->flag (FLAG_WIZ)) {	3560	if ($who->flag (FLAG_WIZ)) {
2800	$who->message ("reloading server.");	3561	$who->message ("reloading server.");
		3562	async {
		3563	$Coro::current->{desc} = "perl_reload";
2801	async { reload_perl };	3564	reload_perl;
		3565	};
2802	}	3566	}
2803	};	3567	};
2804		3568
2805	unshift @INC, $LIBDIR;	3569	unshift @INC, $LIBDIR;
2806		3570
…		…
2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3602	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2839	unless ++$bug_warning > 10;	3603	unless ++$bug_warning > 10;
2840	return;	3604	return;
2841	}	3605	}
2842		3606
2843	$NOW = Event::time;	3607	$NOW = $tick_start = Event::time;
2844		3608
2845	cf::server_tick; # one server iteration	3609	cf::server_tick; # one server iteration
2846		3610
2847	$RUNTIME += $TICK;	3611	$RUNTIME += $TICK;
2848	$NEXT_TICK += $TICK;	3612	$NEXT_TICK += $TICK;
2849		3613
2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3614	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2851	$NEXT_RUNTIME_WRITE = $NOW + 10;	3615	$NEXT_RUNTIME_WRITE = $NOW + 10;
2852	Coro::async_pool {	3616	Coro::async_pool {
		3617	$Coro::current->{desc} = "runtime saver";
2853	write_runtime	3618	write_runtime
2854	or warn "ERROR: unable to write runtime file: $!";	3619	or warn "ERROR: unable to write runtime file: $!";
2855	};	3620	};
2856	}	3621	}
2857		3622
2858	# my $AFTER = Event::time;	3623	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2859	# warn $AFTER - $NOW;#d#	3624	$sig->send;
		3625	}
		3626	while (my $sig = shift @WAIT_FOR_TICK) {
		3627	$sig->send;
		3628	}
		3629
		3630	$NOW = Event::time;
2860		3631
2861	# if we are delayed by four ticks or more, skip them all	3632	# if we are delayed by four ticks or more, skip them all
2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3633	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2863		3634
2864	$TICK_WATCHER->at ($NEXT_TICK);	3635	$TICK_WATCHER->at ($NEXT_TICK);
2865	$TICK_WATCHER->start;	3636	$TICK_WATCHER->start;
2866		3637
2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3638	$LOAD = ($NOW - $tick_start) / $TICK;
2868	$sig->send;	3639	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2869	}
2870	while (my $sig = shift @WAIT_FOR_TICK) {
2871	$sig->send;
2872	}
2873		3640
2874	_post_tick;	3641	_post_tick;
2875	},	3642	},
2876	);	3643	);
2877		3644
2878	{	3645	{
		3646	BDB::min_parallel 8;
2879	BDB::max_poll_time $TICK * 0.1;	3647	BDB::max_poll_time $TICK * 0.1;
2880	$BDB_POLL_WATCHER = Event->io (	3648	$BDB_POLL_WATCHER = Event->io (
2881	reentrant => 0,	3649	reentrant => 0,
2882	fd => BDB::poll_fileno,	3650	fd => BDB::poll_fileno,
2883	poll => 'r',	3651	poll => 'r',
2884	prio => 0,	3652	prio => 0,
2885	data => WF_AUTOCANCEL,	3653	data => WF_AUTOCANCEL,
2886	cb => \&BDB::poll_cb,	3654	cb => \&BDB::poll_cb,
2887	);	3655	);
2888	BDB::min_parallel 8;
2889		3656
2890	BDB::set_sync_prepare {	3657	BDB::set_sync_prepare {
2891	my $status;	3658	my $status;
2892	my $current = $Coro::current;	3659	my $current = $Coro::current;
2893	(	3660	(
…		…
2902	)	3669	)
2903	};	3670	};
2904		3671
2905	unless ($DB_ENV) {	3672	unless ($DB_ENV) {
2906	$DB_ENV = BDB::db_env_create;	3673	$DB_ENV = BDB::db_env_create;
		3674	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3675	| BDB::LOG_AUTOREMOVE, 1);
		3676	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3677	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2907		3678
2908	cf::sync_job {	3679	cf::sync_job {
2909	eval {	3680	eval {
2910	BDB::db_env_open	3681	BDB::db_env_open
2911	$DB_ENV,	3682	$DB_ENV,
…		…
2913	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3684	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2914	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3685	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2915	0666;	3686	0666;
2916		3687
2917	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3688	cf::cleanup "db_env_open($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	};	3689	};
2922		3690
2923	cf::cleanup "db_env_open(db): $@" if $@;	3691	cf::cleanup "db_env_open(db): $@" if $@;
2924	};	3692	};
2925	}	3693	}
		3694
		3695	$BDB_DEADLOCK_WATCHER = Event->timer (
		3696	after => 3,
		3697	interval => 1,
		3698	hard => 1,
		3699	prio => 0,
		3700	data => WF_AUTOCANCEL,
		3701	cb => sub {
		3702	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3703	},
		3704	);
		3705	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3706	after => 11,
		3707	interval => 60,
		3708	hard => 1,
		3709	prio => 0,
		3710	data => WF_AUTOCANCEL,
		3711	cb => sub {
		3712	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3713	},
		3714	);
		3715	$BDB_TRICKLE_WATCHER = Event->timer (
		3716	after => 5,
		3717	interval => 10,
		3718	hard => 1,
		3719	prio => 0,
		3720	data => WF_AUTOCANCEL,
		3721	cb => sub {
		3722	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3723	},
		3724	);
2926	}	3725	}
2927		3726
2928	{	3727	{
2929	IO::AIO::min_parallel 8;	3728	IO::AIO::min_parallel 8;
2930		3729
…		…
2933	$AIO_POLL_WATCHER = Event->io (	3732	$AIO_POLL_WATCHER = Event->io (
2934	reentrant => 0,	3733	reentrant => 0,
2935	data => WF_AUTOCANCEL,	3734	data => WF_AUTOCANCEL,
2936	fd => IO::AIO::poll_fileno,	3735	fd => IO::AIO::poll_fileno,
2937	poll => 'r',	3736	poll => 'r',
2938	prio => 6,	3737	prio => 0,
2939	cb => \&IO::AIO::poll_cb,	3738	cb => \&IO::AIO::poll_cb,
2940	);	3739	);
2941	}	3740	}
2942		3741
2943	my $_log_backtrace;	3742	my $_log_backtrace;
…		…
2949		3748
2950	# limit the # of concurrent backtraces	3749	# limit the # of concurrent backtraces
2951	if ($_log_backtrace < 2) {	3750	if ($_log_backtrace < 2) {
2952	++$_log_backtrace;	3751	++$_log_backtrace;
2953	async {	3752	async {
		3753	$Coro::current->{desc} = "abt $msg";
		3754
2954	my @bt = fork_call {	3755	my @bt = fork_call {
2955	@addr = map { sprintf "%x", $_ } @addr;	3756	@addr = map { sprintf "%x", $_ } @addr;
2956	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	3757	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2957	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	3758	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2958	or die "addr2line: $!";	3759	or die "addr2line: $!";

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