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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.260 by root, Fri Apr 27 19:53:05 2007 UTC vs.
Revision 1.310 by elmex, Mon Jul 16 15:43:49 2007 UTC

…		…
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		24
		25	use JSON::XS 1.4 ();
25	use BDB ();	26	use BDB ();
26	use Data::Dumper;	27	use Data::Dumper;
27	use Digest::MD5;	28	use Digest::MD5;
28	use Fcntl;	29	use Fcntl;
29	use YAML::Syck ();	30	use YAML::Syck ();
30	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
31	use Time::HiRes;	32	use Time::HiRes;
32	use Compress::LZF;	33	use Compress::LZF;
		34	use Digest::MD5 ();
33		35
34	# configure various modules to our taste	36	# configure various modules to our taste
35	#	37	#
36	$Storable::canonical = 1; # reduce rsync transfers	38	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
…		…
49	our %COMMAND = ();	51	our %COMMAND = ();
50	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
51		53
52	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
56		59
57	our $RELOAD; # number of reloads so far	60	our $RELOAD; # number of reloads so far
58	our @EVENT;	61	our @EVENT;
…		…
90	our $LINK_MAP; # the special {link} map, which is always available	93	our $LINK_MAP; # the special {link} map, which is always available
91		94
92	# used to convert map paths into valid unix filenames by replacing / by ∕	95	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
		101
95	binmode STDOUT;	102	binmode STDOUT;
96	binmode STDERR;	103	binmode STDERR;
97		104
98	# read virtual server time, if available	105	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
…		…
139		146
140	=item $cf::TICK	147	=item $cf::TICK
141		148
142	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
143		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
		160
144	=item %cf::CFG	161	=item %cf::CFG
145		162
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
147	from wherever your confdir points to.	164	from wherever your confdir points to.
148		165
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		167
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	168	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	169	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.	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
154		177
155	=back	178	=back
156		179
157	=cut	180	=cut
158		181
…		…
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		203
180	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	205	# within the Safe compartment.
182	for my $pkg (qw(	206	for my $pkg (qw(
183	cf::global cf::attachable	207	cf::global cf::attachable
…		…
191	}	215	}
192		216
193	$Event::DIED = sub {	217	$Event::DIED = sub {
194	warn "error in event callback: @_";	218	warn "error in event callback: @_";
195	};	219	};
		220
		221	#############################################################################
196		222
197	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
198		224
199	=over 4	225	=over 4
200		226
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	246	$d
221	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
222	}	248	}
223		249
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
227		251
228	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
229		253
230	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
231		255
232	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
		257
		258	=cut
		259
		260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		261
		262	sub to_json ($) { $json_coder->encode ($_[0]) }
		263	sub from_json ($) { $json_coder->decode ($_[0]) }
233		264
234	=item cf::lock_wait $string	265	=item cf::lock_wait $string
235		266
236	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
237		268
…		…
303		334
304	BEGIN { *async = \&Coro::async_pool }	335	BEGIN { *async = \&Coro::async_pool }
305		336
306	=item cf::sync_job { BLOCK }	337	=item cf::sync_job { BLOCK }
307		338
308	The design of crossfire+ requires that the main coro ($Coro::main) is	339	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	340	is always able to handle events or runnable, as Crossfire TRT is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	341	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		342	acceptable.
311		343
312	If it must be done, put the blocking parts into C<sync_job>. This will run	344	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	345	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	346	server will be frozen during this time, so the block should either finish
315	fast or be very important.	347	fast or be very important.
…		…
318		350
319	sub sync_job(&) {	351	sub sync_job(&) {
320	my ($job) = @_;	352	my ($job) = @_;
321		353
322	if ($Coro::current == $Coro::main) {	354	if ($Coro::current == $Coro::main) {
		355	my $time = Event::time;
		356
323	# this is the main coro, too bad, we have to block	357	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	358	# till the operation succeeds, freezing the server :/
325		359
326	# TODO: use suspend/resume instead	360	# TODO: use suspend/resume instead
327	# (but this is cancel-safe)	361	# (but this is cancel-safe)
…		…
338		372
339	while ($busy) {	373	while ($busy) {
340	Coro::cede or Event::one_event;	374	Coro::cede or Event::one_event;
341	}	375	}
342		376
		377	$time = Event::time - $time;
		378
		379	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		380	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		381
		382	$tick_start += $time; # do not account sync jobs to server load
		383
343	wantarray ? @res : $res[0]	384	wantarray ? @res : $res[0]
344	} else {	385	} else {
345	# we are in another coroutine, how wonderful, everything just works	386	# we are in another coroutine, how wonderful, everything just works
346		387
347	$job->()	388	$job->()
…		…
366	$EXT_CORO{$coro+0} = $coro;	407	$EXT_CORO{$coro+0} = $coro;
367		408
368	$coro	409	$coro
369	}	410	}
370		411
371	sub write_runtime {	412	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		413
374	my $runtime = "$LOCALDIR/runtime";	414	Executes the given code block with the given arguments in a seperate
		415	process, returning the results. Everything must be serialisable with
		416	Coro::Storable. May, of course, block. Note that the executed sub may
		417	never block itself or use any form of Event handling.
375		418
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	419	=cut
377	or return;
378		420
379	my $value = $cf::RUNTIME + 90 + 10;	421	sub _store_scalar {
380	# 10 is the runtime save interval, for a monotonic clock	422	open my $fh, ">", \my $buf
381	# 60 allows for the watchdog to kill the server.	423	or die "fork_call: cannot open fh-to-buf in child : $!";
382		424	Storable::store_fd $_[0], $fh;
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
384	and return;
385
386	# always fsync - this file is important
387	aio_fsync $fh
388	and return;
389
390	close $fh	425	close $fh;
391	or return;
392		426
393	aio_rename "$runtime~", $runtime	427	$buf
394	and return;	428	}
395		429
		430	sub fork_call(&@) {
		431	my ($cb, @args) = @_;
		432
		433	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		434	# or die "socketpair: $!";
		435	pipe my $fh1, my $fh2
		436	or die "pipe: $!";
		437
		438	if (my $pid = fork) {
		439	close $fh2;
		440
		441	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		442	warn "pst<$res>" unless $res =~ /^pst/;
		443	$res = Coro::Storable::thaw $res;
		444
		445	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		446
		447	Carp::confess $$res unless "ARRAY" eq ref $res;
		448
		449	return wantarray ? @$res : $res->[-1];
		450	} else {
		451	reset_signals;
		452	local $SIG{__WARN__};
		453	local $SIG{__DIE__};
		454	# just in case, this hack effectively disables event
		455	# in the child. cleaner and slower would be canceling all watchers,
		456	# but this works for the time being.
		457	local $Coro::idle;
		458	$Coro::current->prio (Coro::PRIO_MAX);
		459
		460	eval {
		461	close $fh1;
		462
		463	my @res = eval { $cb->(@args) };
		464
		465	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		466	close $fh2;
		467	};
		468
		469	warn $@ if $@;
		470	_exit 0;
396	1	471	}
		472	}
		473
		474	=item $value = cf::db_get $family => $key
		475
		476	Returns a single value from the environment database.
		477
		478	=item cf::db_put $family => $key => $value
		479
		480	Stores the given C<$value> in the family. It can currently store binary
		481	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		482
		483	=cut
		484
		485	our $DB;
		486
		487	sub db_init {
		488	unless ($DB) {
		489	$DB = BDB::db_create $DB_ENV;
		490
		491	cf::sync_job {
		492	eval {
		493	$DB->set_flags (BDB::CHKSUM);
		494
		495	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		496	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		497	cf::cleanup "db_open(db): $!" if $!;
		498	};
		499	cf::cleanup "db_open(db): $@" if $@;
		500	};
		501	}
		502	}
		503
		504	sub db_get($$) {
		505	my $key = "$_[0]/$_[1]";
		506
		507	cf::sync_job {
		508	BDB::db_get $DB, undef, $key, my $data;
		509
		510	$! ? ()
		511	: $data
		512	}
		513	}
		514
		515	sub db_put($$$) {
		516	BDB::dbreq_pri 4;
		517	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		518	}
		519
		520	=item cf::cache $id => [$paths...], $processversion => $process
		521
		522	Generic caching function that returns the value of the resource $id,
		523	caching and regenerating as required.
		524
		525	This function can block.
		526
		527	=cut
		528
		529	sub cache {
		530	my ($id, $src, $processversion, $process) = @_;
		531
		532	my $meta =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	aio_stat $_
		537	and Carp::croak "$_: $!";
		538
		539	($_, (stat _)[7,9])
		540	} @$src;
		541
		542	my $dbmeta = db_get cache => "$id/meta";
		543	if ($dbmeta ne $meta) {
		544	# changed, we may need to process
		545
		546	my @data;
		547	my $md5;
		548
		549	for (0 .. $#$src) {
		550	0 <= aio_load $src->[$_], $data[$_]
		551	or Carp::croak "$src->[$_]: $!";
		552	}
		553
		554	# if processing is expensive, check
		555	# checksum first
		556	if (1) {
		557	$md5 =
		558	join "\x00",
		559	$processversion,
		560	map {
		561	Coro::cede;
		562	($src->[$_], Digest::MD5::md5_hex $data[$_])
		563	} 0.. $#$src;
		564
		565
		566	my $dbmd5 = db_get cache => "$id/md5";
		567	if ($dbmd5 eq $md5) {
		568	db_put cache => "$id/meta", $meta;
		569
		570	return db_get cache => "$id/data";
		571	}
		572	}
		573
		574	my $t1 = Time::HiRes::time;
		575	my $data = $process->(\@data);
		576	my $t2 = Time::HiRes::time;
		577
		578	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		579
		580	db_put cache => "$id/data", $data;
		581	db_put cache => "$id/md5" , $md5;
		582	db_put cache => "$id/meta", $meta;
		583
		584	return $data;
		585	}
		586
		587	db_get cache => "$id/data"
397	}	588	}
398		589
399	=item cf::datalog type => key => value, ...	590	=item cf::datalog type => key => value, ...
400		591
401	Log a datalog packet of the given type with the given key-value pairs.	592	Log a datalog packet of the given type with the given key-value pairs.
…		…
419	attach callbacks/event handlers (a collection of which is called an "attachment")	610	attach callbacks/event handlers (a collection of which is called an "attachment")
420	to it. All such attachable objects support the following methods.	611	to it. All such attachable objects support the following methods.
421		612
422	In the following description, CLASS can be any of C<global>, C<object>	613	In the following description, CLASS can be any of C<global>, C<object>
423	C<player>, C<client> or C<map> (i.e. the attachable objects in	614	C<player>, C<client> or C<map> (i.e. the attachable objects in
424	crossfire+).	615	Crossfire TRT).
425		616
426	=over 4	617	=over 4
427		618
428	=item $attachable->attach ($attachment, key => $value...)	619	=item $attachable->attach ($attachment, key => $value...)
429		620
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	783	$registry = $CB_TYPE[$object_type] ||= [];
593		784
594	} elsif ($type eq "subtype") {	785	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	786	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	787	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	788	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		789
599	} elsif ($type eq "package") {	790	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	791	my $pkg = shift @arg;
601		792
602	while (my ($name, $id) = each %cb_id) {	793	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	822	_attach $registry, $klass, @attach;
632	}	823	}
633		824
634	$obj->{$name} = \%arg;	825	$obj->{$name} = \%arg;
635	} else {	826	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	827	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	828	}
638		829
639	$obj->{_attachment}{$name} = undef;	830	$obj->{_attachment}{$name} = undef;
640	}	831	}
641		832
…		…
643	if (ref $_[0]) {	834	if (ref $_[0]) {
644	_object_attach @_;	835	_object_attach @_;
645	} else {	836	} else {
646	_attach shift->_attach_registry, @_;	837	_attach shift->_attach_registry, @_;
647	}	838	}
		839	_recalc_want;
648	};	840	};
649		841
650	# all those should be optimised	842	# all those should be optimised
651	sub cf::attachable::detach {	843	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	847	delete $obj->{_attachment}{$name};
656	reattach ($obj);	848	reattach ($obj);
657	} else {	849	} else {
658	Carp::croak "cannot, currently, detach class attachments";	850	Carp::croak "cannot, currently, detach class attachments";
659	}	851	}
		852	_recalc_want;
660	};	853	};
661		854
662	sub cf::attachable::attached {	855	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	856	my ($obj, $name) = @_;
664		857
…		…
679	";	872	";
680	die if $@;	873	die if $@;
681	}	874	}
682		875
683	our $override;	876	our $override;
684	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	877	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685		878
686	sub override {	879	sub override {
687	$override = 1;	880	$override = 1;
688	@invoke_results = ();	881	@INVOKE_RESULTS = (@_);
689	}	882	}
690		883
691	sub do_invoke {	884	sub do_invoke {
692	my $event = shift;	885	my $event = shift;
693	my $callbacks = shift;	886	my $callbacks = shift;
694		887
695	@invoke_results = ();	888	@INVOKE_RESULTS = ();
696		889
697	local $override;	890	local $override;
698		891
699	for (@$callbacks) {	892	for (@$callbacks) {
700	eval { &{$_->[1]} };	893	eval { &{$_->[1]} };
…		…
717		910
718	Generate an object-specific event with the given arguments.	911	Generate an object-specific event with the given arguments.
719		912
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	913	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	914	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	915	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		916
724	=back	917	=back
725		918
726	=cut	919	=cut
727		920
…		…
837	or return;	1030	or return;
838	$av = eval { (Storable::thaw $av)->{objs} };	1031	$av = eval { (Storable::thaw $av)->{objs} };
839	}	1032	}
840		1033
841	warn sprintf "loading %s (%d)\n",	1034	warn sprintf "loading %s (%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1035	$filename, length $data, scalar @{$av || []};
843	return ($data, $av);	1036	return ($data, $av);
844	}	1037	}
		1038
		1039	=head2 COMMAND CALLBACKS
		1040
		1041	=over 4
		1042
		1043	=cut
845		1044
846	#############################################################################	1045	#############################################################################
847	# command handling &c	1046	# command handling &c
848		1047
849	=item cf::register_command $name => \&callback($ob,$args);	1048	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1061	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1062	}
864		1063
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1064	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1065
867	Register a callbackf ro execution when the client sends an extcmd packet.	1066	Register a callback for execution when the client sends an (synchronous)
		1067	extcmd packet. Ext commands will be processed in the order they are
		1068	received by the server, like other user commands. The first argument is
		1069	the logged-in player. Ext commands can only be processed after a player
		1070	has logged in successfully.
868		1071
869	If the callback returns something, it is sent back as if reply was being	1072	If the callback returns something, it is sent back as if reply was being
870	called.	1073	called.
871		1074
		1075	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1076
		1077	Register a callback for execution when the client sends an (asynchronous)
		1078	exticmd packet. Exti commands are processed by the server as soon as they
		1079	are received, i.e. out of order w.r.t. other commands. The first argument
		1080	is a client socket. Exti commands can be received anytime, even before
		1081	log-in.
		1082
		1083	If the callback returns something, it is sent back as if reply was being
		1084	called.
		1085
872	=cut	1086	=cut
873		1087
874	sub register_extcmd {	1088	sub register_extcmd {
875	my ($name, $cb) = @_;	1089	my ($name, $cb) = @_;
876		1090
877	$EXTCMD{$name} = $cb;	1091	$EXTCMD{$name} = $cb;
		1092	}
		1093
		1094	sub register_exticmd {
		1095	my ($name, $cb) = @_;
		1096
		1097	$EXTICMD{$name} = $cb;
878	}	1098	}
879		1099
880	cf::player->attach (	1100	cf::player->attach (
881	on_command => sub {	1101	on_command => sub {
882	my ($pl, $name, $params) = @_;	1102	my ($pl, $name, $params) = @_;
…		…
891	cf::override;	1111	cf::override;
892	},	1112	},
893	on_extcmd => sub {	1113	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1114	my ($pl, $buf) = @_;
895		1115
896	my $msg = eval { from_json $buf };	1116	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1117
898	if (ref $msg) {	1118	if (ref $msg) {
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1119	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
900	if (my %reply = $cb->($pl, $msg)) {	1120	if (my %reply = $cb->($pl, $msg)) {
901	$pl->ext_reply ($msg->{msgid}, %reply);	1121	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
907		1127
908	cf::override;	1128	cf::override;
909	},	1129	},
910	);	1130	);
911		1131
912	sub load_extension {
913	my ($path) = @_;
914
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
916	my $base = $1;
917	my $pkg = $1;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}
940	die $@;
941	}
942
943	push @EXTS, $pkg;
944	}
945
946	sub load_extensions {	1132	sub load_extensions {
		1133	cf::sync_job {
		1134	my %todo;
		1135
947	for my $ext (<$LIBDIR/*.ext>) {	1136	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1137	next unless -r $path;
949	eval {	1138
950	load_extension $ext;	1139	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1140	my $base = $1;
		1141	my $pkg = $1;
		1142	$pkg =~ s/[^[:word:]]/_/g;
		1143	$pkg = "ext::$pkg";
		1144
		1145	open my $fh, "<:utf8", $path
		1146	or die "$path: $!";
		1147
		1148	my $source = do { local $/; <$fh> };
		1149
		1150	my %ext = (
		1151	path => $path,
		1152	base => $base,
		1153	pkg => $pkg,
		1154	);
		1155
		1156	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1157	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1158
		1159	$ext{source} =
		1160	"package $pkg; use strict; use utf8;\n"
		1161	. "#line 1 \"$path\"\n{\n"
		1162	. $source
		1163	. "\n};\n1";
		1164
		1165	$todo{$base} = \%ext;
		1166	}
		1167
		1168	my %done;
		1169	while (%todo) {
		1170	my $progress;
		1171
		1172	while (my ($k, $v) = each %todo) {
		1173	for (split /,\s*/, $v->{meta}{depends}) {
		1174	goto skip
		1175	unless exists $done{$_};
		1176	}
		1177
		1178	warn "... loading '$k' into '$v->{pkg}'\n";
		1179
		1180	unless (eval $v->{source}) {
		1181	my $msg = $@ ? "$v->{path}: $@\n"
		1182	: "$v->{base}: extension inactive.\n";
		1183
		1184	if (exists $v->{meta}{mandatory}) {
		1185	warn $msg;
		1186	warn "mandatory extension failed to load, exiting.\n";
		1187	exit 1;
		1188	}
		1189
		1190	warn $msg;
		1191	}
		1192
		1193	$done{$k} = delete $todo{$k};
		1194	push @EXTS, $v->{pkg};
		1195	$progress = 1;
951	1	1196	}
952	} or warn "$ext not loaded: $@";	1197
		1198	skip:
		1199	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1200	unless $progress;
		1201	}
953	}	1202	};
954	}	1203	}
955		1204
956	#############################################################################	1205	#############################################################################
		1206
		1207	=back
957		1208
958	=head2 CORE EXTENSIONS	1209	=head2 CORE EXTENSIONS
959		1210
960	Functions and methods that extend core crossfire objects.	1211	Functions and methods that extend core crossfire objects.
961		1212
…		…
1149	}	1400	}
1150		1401
1151	\@paths	1402	\@paths
1152	}	1403	}
1153		1404
		1405	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1406
		1407	Expand crossfire pod fragments into protocol xml.
		1408
		1409	=cut
		1410
		1411	sub expand_cfpod {
		1412	((my $self), (local $_)) = @_;
		1413
		1414	# escape & and <
		1415	s/&/&amp;/g;
		1416	s/(?<![BIUGH])</&lt;/g;
		1417
		1418	# this is buggy, it needs to properly take care of nested <'s
		1419
		1420	1 while
		1421	# replace B<>, I<>, U<> etc.
		1422	s/B<([^\>]*)>/<b>$1<\/b>/
		1423	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1424	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1425	# replace G<male|female> tags
		1426	|| s{G<([^>|]*)\|([^>]*)>}{
		1427	$self->gender ? $2 : $1
		1428	}ge
		1429	# replace H<hint text>
		1430	|| s{H<([^\>]*)>}
		1431	{
		1432	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1433	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1434	"")
		1435	[$self->{hintmode}]
		1436	}ge;
		1437
		1438	# create single paragraphs (very hackish)
		1439	s/(?<=\S)\n(?=\w)/ /g;
		1440
		1441	# compress some whitespace
		1442	s/\s+\n/\n/g; # ws line-ends
		1443	s/\n\n+/\n/g; # double lines
		1444	s/^\n+//; # beginning lines
		1445	s/\n+$//; # ending lines
		1446
		1447	$_
		1448	}
		1449
		1450	sub hintmode {
		1451	$_[0]{hintmode} = $_[1] if @_ > 1;
		1452	$_[0]{hintmode}
		1453	}
		1454
1154	=item $player->ext_reply ($msgid, %msg)	1455	=item $player->ext_reply ($msgid, %msg)
1155		1456
1156	Sends an ext reply to the player.	1457	Sends an ext reply to the player.
1157		1458
1158	=cut	1459	=cut
1159		1460
1160	sub ext_reply($$%) {	1461	sub ext_reply($$%) {
1161	my ($self, $id, %msg) = @_;	1462	my ($self, $id, %msg) = @_;
1162		1463
1163	$msg{msgid} = $id;	1464	$msg{msgid} = $id;
1164		1465	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1466	}
1167		1467
1168	=item $player->ext_event ($type, %msg)	1468	=item $player->ext_event ($type, %msg)
1169		1469
1170	Sends an ext event to the client.	1470	Sends an ext event to the client.
…		…
1185		1485
1186	package cf::region;	1486	package cf::region;
1187		1487
1188	=item cf::region::find_by_path $path	1488	=item cf::region::find_by_path $path
1189		1489
1190	Tries to decuce the probable region for a map knowing only its path.	1490	Tries to decuce the likely region for a map knowing only its path.
1191		1491
1192	=cut	1492	=cut
1193		1493
1194	sub find_by_path($) {	1494	sub find_by_path($) {
1195	my ($path) = @_;	1495	my ($path) = @_;
1196		1496
1197	my ($match, $specificity);	1497	my ($match, $specificity);
1198		1498
1199	for my $region (list) {	1499	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1500	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1501	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1502	if $region->specificity > $specificity;
1203	}	1503	}
1204	}	1504	}
1205		1505
…		…
1269	my ($self, $merge) = @_;	1569	my ($self, $merge) = @_;
1270		1570
1271	# we have to keep some variables in memory intact	1571	# we have to keep some variables in memory intact
1272	local $self->{path};	1572	local $self->{path};
1273	local $self->{load_path};	1573	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1574
1277	$self->SUPER::thawer_merge ($merge);	1575	$self->SUPER::thawer_merge ($merge);
1278	}	1576	}
1279		1577
1280	sub normalise {	1578	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1625	$self->init; # pass $1 etc.
1328	return $self;	1626	return $self;
1329	}	1627	}
1330	}	1628	}
1331		1629
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1630	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1631	()
1334	}	1632	}
1335		1633
1336	sub init {	1634	sub init {
1337	my ($self) = @_;	1635	my ($self) = @_;
…		…
1378	sub change_all_map_light {	1676	sub change_all_map_light {
1379	my ($change) = @_;	1677	my ($change) = @_;
1380		1678
1381	$_->change_map_light ($change)	1679	$_->change_map_light ($change)
1382	for grep $_->outdoor, values %cf::MAP;	1680	for grep $_->outdoor, values %cf::MAP;
		1681	}
		1682
		1683	sub decay_objects {
		1684	my ($self) = @_;
		1685
		1686	return if $self->{deny_reset};
		1687
		1688	$self->do_decay_objects;
1383	}	1689	}
1384		1690
1385	sub unlink_save {	1691	sub unlink_save {
1386	my ($self) = @_;	1692	my ($self) = @_;
1387		1693
…		…
1445	$self->load_header_orig	1751	$self->load_header_orig
1446	or return;	1752	or return;
1447	$self->prepare_orig;	1753	$self->prepare_orig;
1448	}	1754	}
1449		1755
		1756	$self->{deny_reset} = 1
		1757	if $self->no_reset;
		1758
1450	$self->default_region (cf::region::find_by_path $self->{path})	1759	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1760	unless $self->default_region;
1452		1761
1453	1	1762	1
1454	}	1763	}
…		…
1469	$map->{last_save} = $cf::RUNTIME;	1778	$map->{last_save} = $cf::RUNTIME;
1470		1779
1471	$map->load_header	1780	$map->load_header
1472	or return;	1781	or return;
1473		1782
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1783	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	1784	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	1785	#$cf::WAIT_FOR_TICK->wait;
1477	$map->reset;	1786	$map->reset;
1478	undef $guard;	1787	undef $guard;
1479	return find $path;	1788	return find $path;
…		…
1546	my ($self, $ob) = @_;	1855	my ($self, $ob) = @_;
1547		1856
1548	return find "~" . $ob->name . "/" . $self->{path}	1857	return find "~" . $ob->name . "/" . $self->{path}
1549	if $self->per_player;	1858	if $self->per_player;
1550		1859
		1860	# return find "?party/" . $ob->name . "/" . $self->{path}
		1861	# if $self->per_party;
		1862
1551	$self	1863	$self
1552	}	1864	}
1553		1865
1554	# find and load all maps in the 3x3 area around a map	1866	# find and load all maps in the 3x3 area around a map
1555	sub load_diag {	1867	sub load_diag {
…		…
1601		1913
1602	undef $MAP_PREFETCH{$path};	1914	undef $MAP_PREFETCH{$path};
1603	$MAP_PREFETCHER ||= cf::async {	1915	$MAP_PREFETCHER ||= cf::async {
1604	while (%MAP_PREFETCH) {	1916	while (%MAP_PREFETCH) {
1605	for my $path (keys %MAP_PREFETCH) {	1917	for my $path (keys %MAP_PREFETCH) {
1606	my $map = find $path	1918	if (my $map = find $path) {
1607	or next;
1608	$map->load;	1919	$map->load;
		1920	}
1609		1921
1610	delete $MAP_PREFETCH{$path};	1922	delete $MAP_PREFETCH{$path};
1611	}	1923	}
1612	}	1924	}
1613	undef $MAP_PREFETCHER;	1925	undef $MAP_PREFETCHER;
…		…
1665		1977
1666	sub reset_at {	1978	sub reset_at {
1667	my ($self) = @_;	1979	my ($self) = @_;
1668		1980
1669	# TODO: safety, remove and allow resettable per-player maps	1981	# TODO: safety, remove and allow resettable per-player maps
1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1671	return 1e99 if $self->{deny_reset};	1982	return 1e99 if $self->{deny_reset};
1672		1983
1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1984	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1985	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1675		1986
…		…
1686	my ($self) = @_;	1997	my ($self) = @_;
1687		1998
1688	my $lock = cf::lock_acquire "map_data:$self->{path}";	1999	my $lock = cf::lock_acquire "map_data:$self->{path}";
1689		2000
1690	return if $self->players;	2001	return if $self->players;
1691	return if $self->isa ("ext::map_per_player");#d#
1692		2002
1693	warn "resetting map ", $self->path;#d#	2003	warn "resetting map ", $self->path;
1694		2004
1695	$self->in_memory (cf::MAP_SWAPPED);	2005	$self->in_memory (cf::MAP_SWAPPED);
1696		2006
1697	# need to save uniques path	2007	# need to save uniques path
1698	unless ($self->{deny_save}) {	2008	unless ($self->{deny_save}) {
…		…
1730	$cf::MAP{$self->path} = $self;	2040	$cf::MAP{$self->path} = $self;
1731		2041
1732	$self->reset; # polite request, might not happen	2042	$self->reset; # polite request, might not happen
1733	}	2043	}
1734		2044
		2045	=item $maps = cf::map::tmp_maps
		2046
		2047	Returns an arrayref with all map paths of currently instantiated and saved
		2048	maps. May block.
		2049
		2050	=cut
		2051
		2052	sub tmp_maps() {
		2053	[
		2054	map {
		2055	utf8::decode $_;
		2056	/\.map$/
		2057	? normalise $_
		2058	: ()
		2059	} @{ aio_readdir $TMPDIR or [] }
		2060	]
		2061	}
		2062
		2063	=item $maps = cf::map::random_maps
		2064
		2065	Returns an arrayref with all map paths of currently instantiated and saved
		2066	random maps. May block.
		2067
		2068	=cut
		2069
		2070	sub random_maps() {
		2071	[
		2072	map {
		2073	utf8::decode $_;
		2074	/\.map$/
		2075	? normalise "?random/$_"
		2076	: ()
		2077	} @{ aio_readdir $RANDOMDIR or [] }
		2078	]
		2079	}
		2080
1735	=item cf::map::unique_maps	2081	=item cf::map::unique_maps
1736		2082
1737	Returns an arrayref of paths of all shared maps that have	2083	Returns an arrayref of paths of all shared maps that have
1738	instantiated unique items. May block.	2084	instantiated unique items. May block.
1739		2085
1740	=cut	2086	=cut
1741		2087
1742	sub unique_maps() {	2088	sub unique_maps() {
1743	my $files = aio_readdir $UNIQUEDIR	2089	[
1744	or return;	2090	map {
1745
1746	my @paths;
1747
1748	for (@$files) {
1749	utf8::decode $_;	2091	utf8::decode $_;
1750	next if /\.pst$/;	2092	/\.map$/
1751	next unless /^$PATH_SEP/o;	2093	? normalise $_
1752		2094	: ()
1753	push @paths, cf::map::normalise $_;	2095	} @{ aio_readdir $UNIQUEDIR or [] }
1754	}	2096	]
1755
1756	\@paths
1757	}	2097	}
1758		2098
1759	package cf;	2099	package cf;
1760		2100
1761	=back	2101	=back
…		…
1807		2147
1808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2148	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1809		2149
1810	if ($self->{record_replies}) {	2150	if ($self->{record_replies}) {
1811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2151	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2152
1812	} else {	2153	} else {
		2154	my $pl = $self->contr;
		2155
		2156	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2157	my $diag = $pl->{npc_dialog};
		2158	$diag->{pl}->ext_reply (
		2159	$diag->{id},
		2160	msgtype => "reply",
		2161	msg => $diag->{pl}->expand_cfpod ($msg),
		2162	add_topics => []
		2163	);
		2164
		2165	} else {
1813	$msg = $npc->name . " says: $msg" if $npc;	2166	$msg = $npc->name . " says: $msg" if $npc;
1814	$self->message ($msg, $flags);	2167	$self->message ($msg, $flags);
		2168	}
1815	}	2169	}
1816	}	2170	}
1817		2171
1818	=item $player_object->may ("access")	2172	=item $player_object->may ("access")
1819		2173
…		…
1867	$self->deactivate_recursive;	2221	$self->deactivate_recursive;
1868		2222
1869	return if UNIVERSAL::isa $self->map, "ext::map_link";	2223	return if UNIVERSAL::isa $self->map, "ext::map_link";
1870		2224
1871	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2225	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1872	if $self->map;	2226	if $self->map && $self->map->{path} ne "{link}";
1873		2227
1874	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2228	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1875	}	2229	}
1876		2230
1877	sub cf::object::player::leave_link {	2231	sub cf::object::player::leave_link {
1878	my ($self, $map, $x, $y) = @_;	2232	my ($self, $map, $x, $y) = @_;
		2233
		2234	return unless $self->contr->active;
1879		2235
1880	my $link_pos = delete $self->{_link_pos};	2236	my $link_pos = delete $self->{_link_pos};
1881		2237
1882	unless ($map) {	2238	unless ($map) {
1883	# restore original map position	2239	# restore original map position
…		…
1906		2262
1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2263	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1908	$self->enter_map ($map, $x, $y);	2264	$self->enter_map ($map, $x, $y);
1909	}	2265	}
1910		2266
1911	cf::player->attach (	2267	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1912	on_logout => sub {
1913	my ($pl) = @_;
1914		2268
1915	# abort map switching before logout	2269	Moves the player to the given map-path and coordinates by first freezing
1916	if ($pl->ob->{_link_pos}) {	2270	her, loading and preparing them map, calling the provided $check callback
1917	cf::sync_job {	2271	that has to return the map if sucecssful, and then unfreezes the player on
1918	$pl->ob->leave_link	2272	the new (success) or old (failed) map position. In either case, $done will
1919	};	2273	be called at the end of this process.
1920	}
1921	},
1922	on_login => sub {
1923	my ($pl) = @_;
1924		2274
1925	# try to abort aborted map switching on player login :)
1926	# should happen only on crashes
1927	if ($pl->ob->{_link_pos}) {
1928	$pl->ob->enter_link;
1929	(async {
1930	$pl->ob->reply (undef,
1931	"There was an internal problem at your last logout, "
1932	. "the server will try to bring you to your intended destination in a second.",
1933	cf::NDI_RED);
1934	# we need this sleep as the login has a concurrent enter_exit running
1935	# and this sleep increases chances of the player not ending up in scorn
1936	Coro::Timer::sleep 1;
1937	$pl->ob->leave_link;
1938	})->prio (2);
1939	}
1940	},
1941	);
1942
1943	=item $player_object->goto ($path, $x, $y)
1944
1945	=cut	2275	=cut
		2276
		2277	our $GOTOGEN;
1946		2278
1947	sub cf::object::player::goto {	2279	sub cf::object::player::goto {
1948	my ($self, $path, $x, $y) = @_;	2280	my ($self, $path, $x, $y, $check, $done) = @_;
		2281
		2282	# do generation counting so two concurrent goto's will be executed in-order
		2283	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1949		2284
1950	$self->enter_link;	2285	$self->enter_link;
1951		2286
1952	(async {	2287	(async {
1953	my $map = eval {	2288	my $map = eval {
1954	my $map = cf::map::find $path;	2289	my $map = cf::map::find $path;
		2290
		2291	if ($map) {
1955	$map = $map->customise_for ($self) if $map;	2292	$map = $map->customise_for ($self);
		2293	$map = $check->($map) if $check && $map;
		2294	} else {
		2295	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	}
		2297
1956	$map	2298	$map
		2299	};
		2300
		2301	if ($@) {
		2302	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2303	LOG llevError | logBacktrace, Carp::longmess $@;
1957	} or	2304	}
1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1959		2305
		2306	if ($gen == $self->{_goto_generation}) {
		2307	delete $self->{_goto_generation};
1960	$self->leave_link ($map, $x, $y);	2308	$self->leave_link ($map, $x, $y);
		2309	}
		2310
		2311	$done->() if $done;
1961	})->prio (1);	2312	})->prio (1);
1962	}	2313	}
1963		2314
1964	=item $player_object->enter_exit ($exit_object)	2315	=item $player_object->enter_exit ($exit_object)
1965		2316
…		…
2034	my $hp = $exit->stats->hp;	2385	my $hp = $exit->stats->hp;
2035	my $sp = $exit->stats->sp;	2386	my $sp = $exit->stats->sp;
2036		2387
2037	$self->enter_link;	2388	$self->enter_link;
2038		2389
		2390	# if exit is damned, update players death & WoR home-position
		2391	$self->contr->savebed ($slaying, $hp, $sp)
		2392	if $exit->flag (FLAG_DAMNED);
		2393
2039	(async {	2394	(async {
2040	$self->deactivate_recursive; # just to be sure	2395	$self->deactivate_recursive; # just to be sure
2041	unless (eval {	2396	unless (eval {
2042	$self->goto ($slaying, $hp, $sp);	2397	$self->goto ($slaying, $hp, $sp);
2043		2398
…		…
2070		2425
2071	utf8::encode $text;	2426	utf8::encode $text;
2072	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2427	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2073	}	2428	}
2074		2429
		2430	=item $client->send_msg ($color, $type, $msg, [extra...])
		2431
		2432	Send a drawinfo or msg packet to the client, formatting the msg for the
		2433	client if neccessary. C<$type> should be a string identifying the type of
		2434	the message, with C<log> being the default. If C<$color> is negative, suppress
		2435	the message unless the client supports the msg packet.
		2436
		2437	=cut
		2438
		2439	sub cf::client::send_msg {
		2440	my ($self, $color, $type, $msg, @extra) = @_;
		2441
		2442	$msg = $self->pl->expand_cfpod ($msg);
		2443
		2444	return unless @extra || length $msg;
		2445
		2446	if ($self->can_msg) {
		2447	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2448	} else {
		2449	# replace some tags by gcfclient-compatible ones
		2450	for ($msg) {
		2451	1 while
		2452	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2453	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2454	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2455	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2456	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2457	}
		2458
		2459	if ($color >= 0) {
		2460	if (0 && $msg =~ /\[/) {
		2461	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2462	} else {
		2463	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2464	$self->send_packet ("drawinfo $color $msg")
		2465	}
		2466	}
		2467	}
		2468	}
		2469
2075	=item $client->ext_event ($type, %msg)	2470	=item $client->ext_event ($type, %msg)
2076		2471
2077	Sends an exti event to the client.	2472	Sends an ext event to the client.
2078		2473
2079	=cut	2474	=cut
2080		2475
2081	sub cf::client::ext_event($$%) {	2476	sub cf::client::ext_event($$%) {
2082	my ($self, $type, %msg) = @_;	2477	my ($self, $type, %msg) = @_;
2083		2478
		2479	return unless $self->extcmd;
		2480
2084	$msg{msgtype} = "event_$type";	2481	$msg{msgtype} = "event_$type";
2085	$self->send_packet ("ext " . cf::to_json \%msg);	2482	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2086	}	2483	}
2087		2484
2088	=item $success = $client->query ($flags, "text", \&cb)	2485	=item $success = $client->query ($flags, "text", \&cb)
2089		2486
2090	Queues a query to the client, calling the given callback with	2487	Queues a query to the client, calling the given callback with
2091	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2488	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2092	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2489	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2093		2490
2094	Queries can fail, so check the return code. Or don't, as queries will become	2491	Queries can fail, so check the return code. Or don't, as queries will
2095	reliable at some point in the future.	2492	become reliable at some point in the future.
2096		2493
2097	=cut	2494	=cut
2098		2495
2099	sub cf::client::query {	2496	sub cf::client::query {
2100	my ($self, $flags, $text, $cb) = @_;	2497	my ($self, $flags, $text, $cb) = @_;
…		…
2108	utf8::encode $text;	2505	utf8::encode $text;
2109	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2506	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2110		2507
2111	$self->send_packet ($self->{query_queue}[0][0])	2508	$self->send_packet ($self->{query_queue}[0][0])
2112	if @{ $self->{query_queue} } == 1;	2509	if @{ $self->{query_queue} } == 1;
		2510
		2511	1
2113	}	2512	}
2114		2513
2115	cf::client->attach (	2514	cf::client->attach (
		2515	on_connect => sub {
		2516	my ($ns) = @_;
		2517
		2518	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2519	},
2116	on_reply => sub {	2520	on_reply => sub {
2117	my ($ns, $msg) = @_;	2521	my ($ns, $msg) = @_;
2118		2522
2119	# this weird shuffling is so that direct followup queries	2523	# this weird shuffling is so that direct followup queries
2120	# get handled first	2524	# get handled first
…		…
2132	} else {	2536	} else {
2133	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2537	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2134	}	2538	}
2135	}	2539	}
2136	},	2540	},
		2541	on_exticmd => sub {
		2542	my ($ns, $buf) = @_;
		2543
		2544	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2545
		2546	if (ref $msg) {
		2547	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2548	if (my %reply = $cb->($ns, $msg)) {
		2549	$reply{msgid} = $msg->{msgid};
		2550	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2551	}
		2552	}
		2553	} else {
		2554	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2555	}
		2556
		2557	cf::override;
		2558	},
2137	);	2559	);
2138		2560
2139	=item $client->async (\&cb)	2561	=item $client->async (\&cb)
2140		2562
2141	Create a new coroutine, running the specified callback. The coroutine will	2563	Create a new coroutine, running the specified callback. The coroutine will
…		…
2190		2612
2191	=pod	2613	=pod
2192		2614
2193	The following functions and methods are available within a safe environment:	2615	The following functions and methods are available within a safe environment:
2194		2616
2195	cf::object contr pay_amount pay_player map	2617	cf::object
		2618	contr pay_amount pay_player map x y force_find force_add
		2619	insert remove
		2620
2196	cf::object::player player	2621	cf::object::player
2197	cf::player peaceful	2622	player
2198	cf::map trigger	2623
		2624	cf::player
		2625	peaceful
		2626
		2627	cf::map
		2628	trigger
2199		2629
2200	=cut	2630	=cut
2201		2631
2202	for (	2632	for (
2203	["cf::object" => qw(contr pay_amount pay_player map)],	2633	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2634	insert remove)],
2204	["cf::object::player" => qw(player)],	2635	["cf::object::player" => qw(player)],
2205	["cf::player" => qw(peaceful)],	2636	["cf::player" => qw(peaceful)],
2206	["cf::map" => qw(trigger)],	2637	["cf::map" => qw(trigger)],
2207	) {	2638	) {
2208	no strict 'refs';	2639	no strict 'refs';
…		…
2279	=back	2710	=back
2280		2711
2281	=cut	2712	=cut
2282		2713
2283	#############################################################################	2714	#############################################################################
2284
2285	=head2 EXTENSION DATABASE SUPPORT
2286
2287	Crossfire maintains a very simple database for extension use. It can
2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2289	convert to/from binary).
2290
2291	The parameter C<$family> should best start with the name of the extension
2292	using it, it should be unique.
2293
2294	=over 4
2295
2296	=item $value = cf::db_get $family => $key
2297
2298	Returns a single value from the database.
2299
2300	=item cf::db_put $family => $key => $value
2301
2302	Stores the given C<$value> in the family.
2303
2304	=cut
2305
2306	our $DB;
2307
2308	sub db_init {
2309	unless ($DB) {
2310	$DB = BDB::db_create $DB_ENV;
2311
2312	cf::sync_job {
2313	eval {
2314	$DB->set_flags (BDB::CHKSUM);
2315
2316	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2317	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2318	cf::cleanup "db_open(db): $!" if $!;
2319	};
2320	cf::cleanup "db_open(db): $@" if $@;
2321	};
2322	}
2323	}
2324
2325	sub db_get($$) {
2326	my $key = "$_[0]/$_[1]";
2327
2328	cf::sync_job {
2329	BDB::db_get $DB, undef, $key, my $data;
2330
2331	$! ? ()
2332	: $data
2333	}
2334	}
2335
2336	sub db_put($$$) {
2337	BDB::dbreq_pri 4;
2338	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2339	}
2340
2341	=item cf::cache $id => [$paths...], $processversion => $process
2342
2343	Generic caching function that returns the value of the resource $id,
2344	caching and regenerating as required.
2345
2346	This function can block.
2347
2348	=cut
2349
2350	sub cache {
2351	my ($id, $src, $processversion, $process) = @_;
2352
2353	my $meta =
2354	join "\x00",
2355	$processversion,
2356	map {
2357	aio_stat $_
2358	and Carp::croak "$_: $!";
2359
2360	($_, (stat _)[7,9])
2361	} @$src;
2362
2363	my $dbmeta = db_get cache => "$id/meta";
2364	if ($dbmeta ne $meta) {
2365	# changed, we may need to process
2366
2367	my @data;
2368	my $md5;
2369
2370	for (0 .. $#$src) {
2371	0 <= aio_load $src->[$_], $data[$_]
2372	or Carp::croak "$src->[$_]: $!";
2373	}
2374
2375	# if processing is expensive, check
2376	# checksum first
2377	if (1) {
2378	$md5 =
2379	join "\x00",
2380	$processversion,
2381	map {
2382	Coro::cede;
2383	($src->[$_], Digest::MD5::md5_hex $data[$_])
2384	} 0.. $#$src;
2385
2386
2387	my $dbmd5 = db_get cache => "$id/md5";
2388	if ($dbmd5 eq $md5) {
2389	db_put cache => "$id/meta", $meta;
2390
2391	return db_get cache => "$id/data";
2392	}
2393	}
2394
2395	my $t1 = Time::HiRes::time;
2396	my $data = $process->(\@data);
2397	my $t2 = Time::HiRes::time;
2398
2399	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2400
2401	db_put cache => "$id/data", $data;
2402	db_put cache => "$id/md5" , $md5;
2403	db_put cache => "$id/meta", $meta;
2404
2405	return $data;
2406	}
2407
2408	db_get cache => "$id/data"
2409	}
2410
2411	=item fork_call { }, $args
2412
2413	Executes the given code block with the given arguments in a seperate
2414	process, returning the results. Everything must be serialisable with
2415	Coro::Storable. May, of course, block. Note that the executed sub may
2416	never block itself or use any form of Event handling.
2417
2418	=cut
2419
2420	sub fork_call(&@) {
2421	my ($cb, @args) = @_;
2422
2423	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2424	# or die "socketpair: $!";
2425	pipe my $fh1, my $fh2
2426	or die "pipe: $!";
2427
2428	if (my $pid = fork) {
2429	close $fh2;
2430
2431	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2432	$res = Coro::Storable::thaw $res;
2433
2434	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2435
2436	die $$res unless "ARRAY" eq ref $res;
2437
2438	return wantarray ? @$res : $res->[-1];
2439	} else {
2440	local $SIG{__WARN__};
2441	eval {
2442	local $SIG{__DIE__};
2443	close $fh1;
2444
2445	my @res = eval { $cb->(@args) };
2446	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2447	};
2448
2449	warn $@ if $@;
2450	_exit 0;
2451	}
2452	}
2453
2454
2455
2456	#############################################################################
2457	# the server's init and main functions	2715	# the server's init and main functions
2458		2716
2459	sub load_facedata($) {	2717	sub load_facedata($) {
2460	my ($path) = @_;	2718	my ($path) = @_;
2461		2719
…		…
2473	{	2731	{
2474	my $faces = $facedata->{faceinfo};	2732	my $faces = $facedata->{faceinfo};
2475		2733
2476	while (my ($face, $info) = each %$faces) {	2734	while (my ($face, $info) = each %$faces) {
2477	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2735	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2478	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2736	cf::face::set_visibility $idx, $info->{visibility};
		2737	cf::face::set_magicmap $idx, $info->{magicmap};
2479	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2738	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2480	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2739	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2481	Coro::cede;	2740
		2741	cf::cede_to_tick;
2482	}	2742	}
2483		2743
2484	while (my ($face, $info) = each %$faces) {	2744	while (my ($face, $info) = each %$faces) {
2485	next unless $info->{smooth};	2745	next unless $info->{smooth};
2486	my $idx = cf::face::find $face	2746	my $idx = cf::face::find $face
2487	or next;	2747	or next;
2488	if (my $smooth = cf::face::find $info->{smooth}) {	2748	if (my $smooth = cf::face::find $info->{smooth}) {
		2749	cf::face::set_smooth $idx, $smooth;
2489	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2750	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2490	} else {	2751	} else {
2491	warn "smooth face '$info->{smooth}' not found for face '$face'";	2752	warn "smooth face '$info->{smooth}' not found for face '$face'";
2492	}	2753	}
2493	Coro::cede;	2754
		2755	cf::cede_to_tick;
2494	}	2756	}
2495	}	2757	}
2496		2758
2497	{	2759	{
2498	my $anims = $facedata->{animinfo};	2760	my $anims = $facedata->{animinfo};
2499		2761
2500	while (my ($anim, $info) = each %$anims) {	2762	while (my ($anim, $info) = each %$anims) {
2501	cf::anim::set $anim, $info->{frames}, $info->{facings};	2763	cf::anim::set $anim, $info->{frames}, $info->{facings};
2502	Coro::cede;	2764	cf::cede_to_tick;
2503	}	2765	}
2504		2766
2505	cf::anim::invalidate_all; # d'oh	2767	cf::anim::invalidate_all; # d'oh
		2768	}
		2769
		2770	{
		2771	# TODO: for gcfclient pleasure, we should give resources
		2772	# that gcfclient doesn't grok a >10000 face index.
		2773	my $res = $facedata->{resource};
		2774	my $enc = JSON::XS->new->utf8->canonical;
		2775
		2776	while (my ($name, $info) = each %$res) {
		2777	my $meta = $enc->encode ({
		2778	name => $name,
		2779	type => $info->{type},
		2780	copyright => $info->{copyright}, #TODO#
		2781	});
		2782
		2783	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2784
		2785	if ($name =~ /\.jpg$/) {
		2786	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2787	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2788	} else {
		2789	my $data = pack "(w/a*)*", $meta, $info->{data};
		2790	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2791
		2792	cf::face::set_type $idx, 1;
		2793	cf::face::set_data $idx, 0, $data, $chk;
		2794	}
		2795
		2796	cf::cede_to_tick;
		2797	}
2506	}	2798	}
2507		2799
2508	1	2800	1
2509	}	2801	}
2510		2802
2511	sub reload_regions {	2803	sub reload_regions {
2512	load_resource_file "$MAPDIR/regions"	2804	load_resource_file "$MAPDIR/regions"
2513	or die "unable to load regions file\n";	2805	or die "unable to load regions file\n";
		2806
		2807	for (cf::region::list) {
		2808	$_->{match} = qr/$_->{match}/
		2809	if exists $_->{match};
		2810	}
2514	}	2811	}
2515		2812
2516	sub reload_facedata {	2813	sub reload_facedata {
2517	load_facedata "$DATADIR/facedata"	2814	load_facedata "$DATADIR/facedata"
2518	or die "unable to load facedata\n";	2815	or die "unable to load facedata\n";
2519	}	2816	}
2520		2817
2521	sub reload_archetypes {	2818	sub reload_archetypes {
2522	load_resource_file "$DATADIR/archetypes"	2819	load_resource_file "$DATADIR/archetypes"
2523	or die "unable to load archetypes\n";	2820	or die "unable to load archetypes\n";
		2821	#d# NEED to laod twice to resolve forward references
		2822	# this really needs to be done in an extra post-pass
		2823	# (which needs to be synchronous, so solve it differently)
		2824	load_resource_file "$DATADIR/archetypes"
		2825	or die "unable to load archetypes\n";
2524	}	2826	}
2525		2827
2526	sub reload_treasures {	2828	sub reload_treasures {
2527	load_resource_file "$DATADIR/treasures"	2829	load_resource_file "$DATADIR/treasures"
2528	or die "unable to load treasurelists\n";	2830	or die "unable to load treasurelists\n";
…		…
2531	sub reload_resources {	2833	sub reload_resources {
2532	warn "reloading resource files...\n";	2834	warn "reloading resource files...\n";
2533		2835
2534	reload_regions;	2836	reload_regions;
2535	reload_facedata;	2837	reload_facedata;
		2838	#reload_archetypes;#d#
2536	reload_archetypes;	2839	reload_archetypes;
2537	reload_treasures;	2840	reload_treasures;
2538		2841
2539	warn "finished reloading resource files\n";	2842	warn "finished reloading resource files\n";
2540	}	2843	}
…		…
2597	},	2900	},
2598	);	2901	);
2599	}	2902	}
2600	}	2903	}
2601		2904
		2905	sub write_runtime {
		2906	my $runtime = "$LOCALDIR/runtime";
		2907
		2908	# first touch the runtime file to show we are still running:
		2909	# the fsync below can take a very very long time.
		2910
		2911	IO::AIO::aio_utime $runtime, undef, undef;
		2912
		2913	my $guard = cf::lock_acquire "write_runtime";
		2914
		2915	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2916	or return;
		2917
		2918	my $value = $cf::RUNTIME + 90 + 10;
		2919	# 10 is the runtime save interval, for a monotonic clock
		2920	# 60 allows for the watchdog to kill the server.
		2921
		2922	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2923	and return;
		2924
		2925	# always fsync - this file is important
		2926	aio_fsync $fh
		2927	and return;
		2928
		2929	# touch it again to show we are up-to-date
		2930	aio_utime $fh, undef, undef;
		2931
		2932	close $fh
		2933	or return;
		2934
		2935	aio_rename "$runtime~", $runtime
		2936	and return;
		2937
		2938	warn "runtime file written.\n";
		2939
		2940	1
		2941	}
		2942
2602	sub emergency_save() {	2943	sub emergency_save() {
2603	my $freeze_guard = cf::freeze_mainloop;	2944	my $freeze_guard = cf::freeze_mainloop;
2604		2945
2605	warn "enter emergency perl save\n";	2946	warn "enter emergency perl save\n";
2606		2947
…		…
2681	%EXT_CORO = ();	3022	%EXT_CORO = ();
2682		3023
2683	warn "removing commands";	3024	warn "removing commands";
2684	%COMMAND = ();	3025	%COMMAND = ();
2685		3026
2686	warn "removing ext commands";	3027	warn "removing ext/exti commands";
2687	%EXTCMD = ();	3028	%EXTCMD = ();
		3029	%EXTICMD = ();
2688		3030
2689	warn "unloading/nuking all extensions";	3031	warn "unloading/nuking all extensions";
2690	for my $pkg (@EXTS) {	3032	for my $pkg (@EXTS) {
2691	warn "... unloading $pkg";	3033	warn "... unloading $pkg";
2692		3034
…		…
2810	my $signal = new Coro::Signal;	3152	my $signal = new Coro::Signal;
2811	push @WAIT_FOR_TICK_BEGIN, $signal;	3153	push @WAIT_FOR_TICK_BEGIN, $signal;
2812	$signal->wait;	3154	$signal->wait;
2813	}	3155	}
2814		3156
		3157	my $min = 1e6;#d#
		3158	my $avg = 10;
2815	$TICK_WATCHER = Event->timer (	3159	$TICK_WATCHER = Event->timer (
2816	reentrant => 0,	3160	reentrant => 0,
2817	parked => 1,	3161	parked => 1,
2818	prio => 0,	3162	prio => 0,
2819	at => $NEXT_TICK || $TICK,	3163	at => $NEXT_TICK || $TICK,
…		…
2823	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3167	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2824	unless ++$bug_warning > 10;	3168	unless ++$bug_warning > 10;
2825	return;	3169	return;
2826	}	3170	}
2827		3171
2828	$NOW = Event::time;	3172	$NOW = $tick_start = Event::time;
2829		3173
2830	cf::server_tick; # one server iteration	3174	cf::server_tick; # one server iteration
		3175
		3176	0 && sync_job {#d#
		3177	for(1..10) {
		3178	my $t = Event::time;
		3179	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3180	or die;
		3181
		3182	$map->width (50);
		3183	$map->height (50);
		3184	$map->alloc;
		3185	$map->_load_objects ("/tmp/x.map", 1);
		3186	my $t = Event::time - $t;
		3187
		3188	#next unless $t < 0.0013;#d#
		3189	if ($t < $min) {
		3190	$min = $t;
		3191	}
		3192	$avg = $avg * 0.99 + $t * 0.01;
		3193	}
		3194	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3195	exit 0;
		3196	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3197	};
2831		3198
2832	$RUNTIME += $TICK;	3199	$RUNTIME += $TICK;
2833	$NEXT_TICK += $TICK;	3200	$NEXT_TICK += $TICK;
2834		3201
2835	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3202	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2841	}	3208	}
2842		3209
2843	# my $AFTER = Event::time;	3210	# my $AFTER = Event::time;
2844	# warn $AFTER - $NOW;#d#	3211	# warn $AFTER - $NOW;#d#
2845		3212
		3213	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3214	$sig->send;
		3215	}
		3216	while (my $sig = shift @WAIT_FOR_TICK) {
		3217	$sig->send;
		3218	}
		3219
		3220	$NOW = Event::time;
		3221
2846	# if we are delayed by four ticks or more, skip them all	3222	# if we are delayed by four ticks or more, skip them all
2847	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3223	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2848		3224
2849	$TICK_WATCHER->at ($NEXT_TICK);	3225	$TICK_WATCHER->at ($NEXT_TICK);
2850	$TICK_WATCHER->start;	3226	$TICK_WATCHER->start;
2851		3227
2852	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3228	$LOAD = ($NOW - $tick_start) / $TICK;
2853	$sig->send;	3229	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2854	}
2855	while (my $sig = shift @WAIT_FOR_TICK) {
2856	$sig->send;
2857	}
2858		3230
2859	_post_tick;	3231	_post_tick;
		3232
		3233
2860	},	3234	},
2861	);	3235	);
2862		3236
2863	{	3237	{
2864	BDB::max_poll_time $TICK * 0.1;	3238	BDB::max_poll_time $TICK * 0.1;
…		…
2923	prio => 6,	3297	prio => 6,
2924	cb => \&IO::AIO::poll_cb,	3298	cb => \&IO::AIO::poll_cb,
2925	);	3299	);
2926	}	3300	}
2927		3301
		3302	my $_log_backtrace;
		3303
2928	sub _log_backtrace {	3304	sub _log_backtrace {
2929	my ($msg, @addr) = @_;	3305	my ($msg, @addr) = @_;
2930		3306
		3307	$msg =~ s/\n//;
		3308
		3309	# limit the # of concurrent backtraces
		3310	if ($_log_backtrace < 2) {
		3311	++$_log_backtrace;
2931	async {	3312	async {
2932	my @bt = fork_call {	3313	my @bt = fork_call {
2933	@addr = map { sprintf "%x", $_ } @addr;	3314	@addr = map { sprintf "%x", $_ } @addr;
		3315	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2934	open my $fh, "exec addr2line -C -f -i -e \Q$^X\E @addr 2>&1 |"	3316	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2935	or die "addr2line: $!";	3317	or die "addr2line: $!";
2936		3318
2937	my @funcs;	3319	my @funcs;
2938	my @res = <$fh>;	3320	my @res = <$fh>;
2939	chomp for @res;	3321	chomp for @res;
2940	while (@res) {	3322	while (@res) {
2941	my ($func, $line) = splice @res, 0, 2, ();	3323	my ($func, $line) = splice @res, 0, 2, ();
2942	push @funcs, "[$func] $line";	3324	push @funcs, "[$func] $line";
		3325	}
		3326
		3327	@funcs
2943	}	3328	};
2944		3329
2945	@funcs	3330	LOG llevInfo, "[ABT] $msg\n";
		3331	LOG llevInfo, "[ABT] $_\n" for @bt;
		3332	--$_log_backtrace;
2946	};	3333	};
2947		3334	} else {
2948	$msg =~ s/\n//;
2949
2950	LOG llevInfo, "[ABT] $msg\n";	3335	LOG llevInfo, "[ABT] $msg\n";
2951	LOG llevInfo, "[ABT] $_\n" for @bt;	3336	LOG llevInfo, "[ABT] [suppressed]\n";
2952	};	3337	}
2953	}	3338	}
2954		3339
2955	# load additional modules	3340	# load additional modules
2956	use cf::pod;	3341	use cf::pod;
2957		3342

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