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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 1.318 by root, Tue Jul 24 04:55:34 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
…		…
291	};	322	};
292	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
293	$guard	324	$guard
294	}	325	}
295		326
		327	=item cf::get_slot $time[, $priority[, $name]]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	The optional C<$name> can be used to identify the job to run. It might be
		334	used for statistical purposes and should identify the same time-class.
		335
		336	Useful for short background jobs.
		337
		338	=cut
		339
		340	our @SLOT_QUEUE;
		341	our $SLOT_QUEUE;
		342
		343	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		344	$SLOT_QUEUE = Coro::async {
		345	my $signal = new Coro::Signal;
		346
		347	while () {
		348	next_job:
		349	my $avail = cf::till_tick;
		350	if ($avail > 0.01) {
		351	for (0 .. $#SLOT_QUEUE) {
		352	if ($SLOT_QUEUE[$_][0] < $avail) {
		353	my $job = splice @SLOT_QUEUE, $_, 1, ();
		354	$job->[2]->send;
		355	Coro::cede;
		356	goto next_job;
		357	}
		358	}
		359	}
		360
		361	if (@SLOT_QUEUE) {
		362	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		363	push @cf::WAIT_FOR_TICK, $signal;
		364	$signal->wait;
		365	} else {
		366	Coro::schedule;
		367	}
		368	}
		369	};
		370
		371	sub get_slot($;$$) {
		372	my ($time, $pri, $name) = @_;
		373
		374	$time = $TICK * .6 if $time > $TICK * .6;
		375	my $sig = new Coro::Signal;
		376
		377	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		378	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		379	$SLOT_QUEUE->ready;
		380	$sig->wait;
		381	}
		382
296	=item cf::async { BLOCK }	383	=item cf::async { BLOCK }
297		384
298	Currently the same as Coro::async_pool, meaning you cannot use	385	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	386	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.	387	thing you are allowed to do is call C<prio> on it.
…		…
303		390
304	BEGIN { *async = \&Coro::async_pool }	391	BEGIN { *async = \&Coro::async_pool }
305		392
306	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
307		394
308	The design of crossfire+ requires that the main coro ($Coro::main) is	395	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	396	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.	397	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		398	acceptable.
311		399
312	If it must be done, put the blocking parts into C<sync_job>. This will run	400	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	401	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	402	server will be frozen during this time, so the block should either finish
315	fast or be very important.	403	fast or be very important.
…		…
318		406
319	sub sync_job(&) {	407	sub sync_job(&) {
320	my ($job) = @_;	408	my ($job) = @_;
321		409
322	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
323	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
325		415
326	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
327	# (but this is cancel-safe)	417	# (but this is cancel-safe)
…		…
338		428
339	while ($busy) {	429	while ($busy) {
340	Coro::cede or Event::one_event;	430	Coro::cede or Event::one_event;
341	}	431	}
342		432
		433	$time = Event::time - $time;
		434
		435	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		436	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		437
		438	$tick_start += $time; # do not account sync jobs to server load
		439
343	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
344	} else {	441	} else {
345	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
346		443
347	$job->()	444	$job->()
…		…
366	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
367		464
368	$coro	465	$coro
369	}	466	}
370		467
371	sub write_runtime {	468	=item fork_call { }, $args
372	my $runtime = "$LOCALDIR/runtime";
373		469
374	# first touch the runtime file to show we are still running:	470	Executes the given code block with the given arguments in a seperate
375	# the fsync below can take a very very long time.	471	process, returning the results. Everything must be serialisable with
		472	Coro::Storable. May, of course, block. Note that the executed sub may
		473	never block itself or use any form of Event handling.
376		474
377	warn "touching runtime...\n";#d#	475	=cut
378	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
379	utime undef, undef, $fh;
380	}
381		476
382	my $guard = cf::lock_acquire "write_runtime";	477	sub _store_scalar {
383		478	open my $fh, ">", \my $buf
384	warn "starting to write runtime...\n";#d#	479	or die "fork_call: cannot open fh-to-buf in child : $!";
385	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	480	Storable::store_fd $_[0], $fh;
386	or return;
387
388	my $value = $cf::RUNTIME + 90 + 10;
389	# 10 is the runtime save interval, for a monotonic clock
390	# 60 allows for the watchdog to kill the server.
391
392	(aio_write $fh, 0, (length $value), $value, 0) <= 0
393	and return;
394
395	# always fsync - this file is important
396	aio_fsync $fh
397	and return;
398
399	# touch it again to show we are up-to-date
400	utime undef, undef, $fh;
401
402	close $fh	481	close $fh;
403	or return;
404		482
405	aio_rename "$runtime~", $runtime	483	$buf
406	and return;	484	}
407		485
408	warn "... done writing runtime.\n";#d#	486	sub fork_call(&@) {
		487	my ($cb, @args) = @_;
409		488
		489	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		490	# or die "socketpair: $!";
		491	pipe my $fh1, my $fh2
		492	or die "pipe: $!";
		493
		494	if (my $pid = fork) {
		495	close $fh2;
		496
		497	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		498	warn "pst<$res>" unless $res =~ /^pst/;
		499	$res = Coro::Storable::thaw $res;
		500
		501	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		502
		503	Carp::confess $$res unless "ARRAY" eq ref $res;
		504
		505	return wantarray ? @$res : $res->[-1];
		506	} else {
		507	reset_signals;
		508	local $SIG{__WARN__};
		509	local $SIG{__DIE__};
		510	# just in case, this hack effectively disables event
		511	# in the child. cleaner and slower would be canceling all watchers,
		512	# but this works for the time being.
		513	local $Coro::idle;
		514	$Coro::current->prio (Coro::PRIO_MAX);
		515
		516	eval {
		517	close $fh1;
		518
		519	my @res = eval { $cb->(@args) };
		520
		521	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		522	close $fh2;
		523	};
		524
		525	warn $@ if $@;
		526	_exit 0;
410	1	527	}
		528	}
		529
		530	=item $value = cf::db_get $family => $key
		531
		532	Returns a single value from the environment database.
		533
		534	=item cf::db_put $family => $key => $value
		535
		536	Stores the given C<$value> in the family. It can currently store binary
		537	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		538
		539	=cut
		540
		541	our $DB;
		542
		543	sub db_init {
		544	unless ($DB) {
		545	$DB = BDB::db_create $DB_ENV;
		546
		547	cf::sync_job {
		548	eval {
		549	$DB->set_flags (BDB::CHKSUM);
		550
		551	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		552	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		553	cf::cleanup "db_open(db): $!" if $!;
		554	};
		555	cf::cleanup "db_open(db): $@" if $@;
		556	};
		557	}
		558	}
		559
		560	sub db_get($$) {
		561	my $key = "$_[0]/$_[1]";
		562
		563	cf::sync_job {
		564	BDB::db_get $DB, undef, $key, my $data;
		565
		566	$! ? ()
		567	: $data
		568	}
		569	}
		570
		571	sub db_put($$$) {
		572	BDB::dbreq_pri 4;
		573	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		574	}
		575
		576	=item cf::cache $id => [$paths...], $processversion => $process
		577
		578	Generic caching function that returns the value of the resource $id,
		579	caching and regenerating as required.
		580
		581	This function can block.
		582
		583	=cut
		584
		585	sub cache {
		586	my ($id, $src, $processversion, $process) = @_;
		587
		588	my $meta =
		589	join "\x00",
		590	$processversion,
		591	map {
		592	aio_stat $_
		593	and Carp::croak "$_: $!";
		594
		595	($_, (stat _)[7,9])
		596	} @$src;
		597
		598	my $dbmeta = db_get cache => "$id/meta";
		599	if ($dbmeta ne $meta) {
		600	# changed, we may need to process
		601
		602	my @data;
		603	my $md5;
		604
		605	for (0 .. $#$src) {
		606	0 <= aio_load $src->[$_], $data[$_]
		607	or Carp::croak "$src->[$_]: $!";
		608	}
		609
		610	# if processing is expensive, check
		611	# checksum first
		612	if (1) {
		613	$md5 =
		614	join "\x00",
		615	$processversion,
		616	map {
		617	Coro::cede;
		618	($src->[$_], Digest::MD5::md5_hex $data[$_])
		619	} 0.. $#$src;
		620
		621
		622	my $dbmd5 = db_get cache => "$id/md5";
		623	if ($dbmd5 eq $md5) {
		624	db_put cache => "$id/meta", $meta;
		625
		626	return db_get cache => "$id/data";
		627	}
		628	}
		629
		630	my $t1 = Time::HiRes::time;
		631	my $data = $process->(\@data);
		632	my $t2 = Time::HiRes::time;
		633
		634	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		635
		636	db_put cache => "$id/data", $data;
		637	db_put cache => "$id/md5" , $md5;
		638	db_put cache => "$id/meta", $meta;
		639
		640	return $data;
		641	}
		642
		643	db_get cache => "$id/data"
411	}	644	}
412		645
413	=item cf::datalog type => key => value, ...	646	=item cf::datalog type => key => value, ...
414		647
415	Log a datalog packet of the given type with the given key-value pairs.	648	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")	666	attach callbacks/event handlers (a collection of which is called an "attachment")
434	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
435		668
436	In the following description, CLASS can be any of C<global>, C<object>	669	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	670	C<player>, C<client> or C<map> (i.e. the attachable objects in
438	crossfire+).	671	Crossfire TRT).
439		672
440	=over 4	673	=over 4
441		674
442	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
443		676
…		…
606	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
607		840
608	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
609	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
610	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
611	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
612		845
613	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
614	my $pkg = shift @arg;	847	my $pkg = shift @arg;
615		848
616	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
645	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
646	}	879	}
647		880
648	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
649	} else {	882	} else {
650	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
651	}	884	}
652		885
653	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
654	}	887	}
655		888
…		…
657	if (ref $_[0]) {	890	if (ref $_[0]) {
658	_object_attach @_;	891	_object_attach @_;
659	} else {	892	} else {
660	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
661	}	894	}
		895	_recalc_want;
662	};	896	};
663		897
664	# all those should be optimised	898	# all those should be optimised
665	sub cf::attachable::detach {	899	sub cf::attachable::detach {
666	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
669	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
670	reattach ($obj);	904	reattach ($obj);
671	} else {	905	} else {
672	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
673	}	907	}
		908	_recalc_want;
674	};	909	};
675		910
676	sub cf::attachable::attached {	911	sub cf::attachable::attached {
677	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
678		913
…		…
693	";	928	";
694	die if $@;	929	die if $@;
695	}	930	}
696		931
697	our $override;	932	our $override;
698	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	933	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
699		934
700	sub override {	935	sub override {
701	$override = 1;	936	$override = 1;
702	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
703	}	938	}
704		939
705	sub do_invoke {	940	sub do_invoke {
706	my $event = shift;	941	my $event = shift;
707	my $callbacks = shift;	942	my $callbacks = shift;
708		943
709	@invoke_results = ();	944	@INVOKE_RESULTS = ();
710		945
711	local $override;	946	local $override;
712		947
713	for (@$callbacks) {	948	for (@$callbacks) {
714	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
731		966
732	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
733		968
734	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
735	removed in future versions), and there is no public API to access override	970	removed in future versions), and there is no public API to access override
736	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
737		972
738	=back	973	=back
739		974
740	=cut	975	=cut
741		976
742	#############################################################################	977	#############################################################################
743	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
744		990
745	sub reattach {	991	sub reattach {
746	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
747	my ($obj) = @_;	993	my ($obj) = @_;
748		994
…		…
851	or return;	1097	or return;
852	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
853	}	1099	}
854		1100
855	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
856	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
857	return ($data, $av);	1103	return ($data, $av);
858	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
859		1111
860	#############################################################################	1112	#############################################################################
861	# command handling &c	1113	# command handling &c
862		1114
863	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
876	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
877	}	1129	}
878		1130
879	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
880		1132
881	Register a callbackf ro execution when the client sends an extcmd packet.	1133	Register a callback for execution when the client sends an (synchronous)
		1134	extcmd packet. Ext commands will be processed in the order they are
		1135	received by the server, like other user commands. The first argument is
		1136	the logged-in player. Ext commands can only be processed after a player
		1137	has logged in successfully.
882		1138
883	If the callback returns something, it is sent back as if reply was being	1139	If the callback returns something, it is sent back as if reply was being
884	called.	1140	called.
885		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
886	=cut	1153	=cut
887		1154
888	sub register_extcmd {	1155	sub register_extcmd {
889	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
890		1157
891	$EXTCMD{$name} = $cb;	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
892	}	1165	}
893		1166
894	cf::player->attach (	1167	cf::player->attach (
895	on_command => sub {	1168	on_command => sub {
896	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
905	cf::override;	1178	cf::override;
906	},	1179	},
907	on_extcmd => sub {	1180	on_extcmd => sub {
908	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
909		1182
910	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
911		1184
912	if (ref $msg) {	1185	if (ref $msg) {
		1186	my ($type, $reply, @payload) =
		1187	"ARRAY" eq ref $msg
		1188	? @$msg
		1189	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1190
913	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
914	if (my %reply = $cb->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
915	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
916	}	1195	if $reply;
917	}	1196	}
918	} else {	1197	} else {
919	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
920	}	1199	}
921		1200
922	cf::override;	1201	cf::override;
923	},	1202	},
924	);	1203	);
925		1204
926	sub load_extension {
927	my ($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 {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
961	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1210	next unless -r $path;
963	eval {	1211
964	load_extension $ext;	1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
965	1	1269	}
966	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
967	}	1275	};
968	}	1276	}
969		1277
970	#############################################################################	1278	#############################################################################
		1279
		1280	=back
971		1281
972	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
973		1283
974	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
975		1285
…		…
1163	}	1473	}
1164		1474
1165	\@paths	1475	\@paths
1166	}	1476	}
1167		1477
		1478	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1479
		1480	Expand crossfire pod fragments into protocol xml.
		1481
		1482	=cut
		1483
		1484	sub expand_cfpod {
		1485	((my $self), (local $_)) = @_;
		1486
		1487	# escape & and <
		1488	s/&/&amp;/g;
		1489	s/(?<![BIUGH])</&lt;/g;
		1490
		1491	# this is buggy, it needs to properly take care of nested <'s
		1492
		1493	1 while
		1494	# replace B<>, I<>, U<> etc.
		1495	s/B<([^\>]*)>/<b>$1<\/b>/
		1496	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1497	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1498	# replace G<male|female> tags
		1499	|| s{G<([^>|]*)\|([^>]*)>}{
		1500	$self->gender ? $2 : $1
		1501	}ge
		1502	# replace H<hint text>
		1503	|| s{H<([^\>]*)>}
		1504	{
		1505	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1506	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1507	"")
		1508	[$self->{hintmode}]
		1509	}ge;
		1510
		1511	# create single paragraphs (very hackish)
		1512	s/(?<=\S)\n(?=\w)/ /g;
		1513
		1514	# compress some whitespace
		1515	s/\s+\n/\n/g; # ws line-ends
		1516	s/\n\n+/\n/g; # double lines
		1517	s/^\n+//; # beginning lines
		1518	s/\n+$//; # ending lines
		1519
		1520	$_
		1521	}
		1522
		1523	sub hintmode {
		1524	$_[0]{hintmode} = $_[1] if @_ > 1;
		1525	$_[0]{hintmode}
		1526	}
		1527
1168	=item $player->ext_reply ($msgid, %msg)	1528	=item $player->ext_reply ($msgid, @msg)
1169		1529
1170	Sends an ext reply to the player.	1530	Sends an ext reply to the player.
1171		1531
1172	=cut	1532	=cut
1173		1533
1174	sub ext_reply($$%) {	1534	sub ext_reply($$@) {
1175	my ($self, $id, %msg) = @_;	1535	my ($self, $id, @msg) = @_;
1176		1536
1177	$msg{msgid} = $id;	1537	if ($self->ns->extcmd == 2) {
1178		1538	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
1179	$self->send ("ext " . cf::to_json \%msg);	1539	} elsif ($self->ns->extcmd == 1) {
		1540	#TODO: version 1, remove
		1541	unshift @msg, msgtype => "reply", msgid => $id;
		1542	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1543	}
1180	}	1544	}
1181		1545
1182	=item $player->ext_event ($type, %msg)	1546	=item $player->ext_msg ($type, @msg)
1183		1547
1184	Sends an ext event to the client.	1548	Sends an ext event to the client.
1185		1549
1186	=cut	1550	=cut
1187		1551
1188	sub ext_event($$%) {	1552	sub ext_msg($$@) {
1189	my ($self, $type, %msg) = @_;	1553	my ($self, $type, @msg) = @_;
1190		1554
1191	$self->ns->ext_event ($type, %msg);	1555	$self->ns->ext_msg ($type, @msg);
1192	}	1556	}
1193		1557
1194	=head3 cf::region	1558	=head3 cf::region
1195		1559
1196	=over 4	1560	=over 4
…		…
1199		1563
1200	package cf::region;	1564	package cf::region;
1201		1565
1202	=item cf::region::find_by_path $path	1566	=item cf::region::find_by_path $path
1203		1567
1204	Tries to decuce the probable region for a map knowing only its path.	1568	Tries to decuce the likely region for a map knowing only its path.
1205		1569
1206	=cut	1570	=cut
1207		1571
1208	sub find_by_path($) {	1572	sub find_by_path($) {
1209	my ($path) = @_;	1573	my ($path) = @_;
1210		1574
1211	my ($match, $specificity);	1575	my ($match, $specificity);
1212		1576
1213	for my $region (list) {	1577	for my $region (list) {
1214	if ($region->match && $path =~ $region->match) {	1578	if ($region->{match} && $path =~ $region->{match}) {
1215	($match, $specificity) = ($region, $region->specificity)	1579	($match, $specificity) = ($region, $region->specificity)
1216	if $region->specificity > $specificity;	1580	if $region->specificity > $specificity;
1217	}	1581	}
1218	}	1582	}
1219		1583
…		…
1283	my ($self, $merge) = @_;	1647	my ($self, $merge) = @_;
1284		1648
1285	# we have to keep some variables in memory intact	1649	# we have to keep some variables in memory intact
1286	local $self->{path};	1650	local $self->{path};
1287	local $self->{load_path};	1651	local $self->{load_path};
1288	local $self->{deny_save};
1289	local $self->{deny_reset};
1290		1652
1291	$self->SUPER::thawer_merge ($merge);	1653	$self->SUPER::thawer_merge ($merge);
1292	}	1654	}
1293		1655
1294	sub normalise {	1656	sub normalise {
…		…
1341	$self->init; # pass $1 etc.	1703	$self->init; # pass $1 etc.
1342	return $self;	1704	return $self;
1343	}	1705	}
1344	}	1706	}
1345		1707
1346	Carp::carp "unable to resolve path '$path' (base '$base').";	1708	Carp::cluck "unable to resolve path '$path' (base '$base').";
1347	()	1709	()
1348	}	1710	}
1349		1711
1350	sub init {	1712	sub init {
1351	my ($self) = @_;	1713	my ($self) = @_;
…		…
1392	sub change_all_map_light {	1754	sub change_all_map_light {
1393	my ($change) = @_;	1755	my ($change) = @_;
1394		1756
1395	$_->change_map_light ($change)	1757	$_->change_map_light ($change)
1396	for grep $_->outdoor, values %cf::MAP;	1758	for grep $_->outdoor, values %cf::MAP;
		1759	}
		1760
		1761	sub decay_objects {
		1762	my ($self) = @_;
		1763
		1764	return if $self->{deny_reset};
		1765
		1766	$self->do_decay_objects;
1397	}	1767	}
1398		1768
1399	sub unlink_save {	1769	sub unlink_save {
1400	my ($self) = @_;	1770	my ($self) = @_;
1401		1771
…		…
1459	$self->load_header_orig	1829	$self->load_header_orig
1460	or return;	1830	or return;
1461	$self->prepare_orig;	1831	$self->prepare_orig;
1462	}	1832	}
1463		1833
		1834	$self->{deny_reset} = 1
		1835	if $self->no_reset;
		1836
1464	$self->default_region (cf::region::find_by_path $self->{path})	1837	$self->default_region (cf::region::find_by_path $self->{path})
1465	unless $self->default_region;	1838	unless $self->default_region;
1466		1839
1467	1	1840	1
1468	}	1841	}
…		…
1483	$map->{last_save} = $cf::RUNTIME;	1856	$map->{last_save} = $cf::RUNTIME;
1484		1857
1485	$map->load_header	1858	$map->load_header
1486	or return;	1859	or return;
1487		1860
1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1861	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1489	# doing this can freeze the server in a sync job, obviously	1862	# doing this can freeze the server in a sync job, obviously
1490	#$cf::WAIT_FOR_TICK->wait;	1863	#$cf::WAIT_FOR_TICK->wait;
1491	$map->reset;	1864	$map->reset;
1492	undef $guard;	1865	undef $guard;
1493	return find $path;	1866	return find $path;
…		…
1560	my ($self, $ob) = @_;	1933	my ($self, $ob) = @_;
1561		1934
1562	return find "~" . $ob->name . "/" . $self->{path}	1935	return find "~" . $ob->name . "/" . $self->{path}
1563	if $self->per_player;	1936	if $self->per_player;
1564		1937
		1938	# return find "?party/" . $ob->name . "/" . $self->{path}
		1939	# if $self->per_party;
		1940
1565	$self	1941	$self
1566	}	1942	}
1567		1943
1568	# find and load all maps in the 3x3 area around a map	1944	# find and load all maps in the 3x3 area around a map
1569	sub load_diag {	1945	sub load_diag {
…		…
1615		1991
1616	undef $MAP_PREFETCH{$path};	1992	undef $MAP_PREFETCH{$path};
1617	$MAP_PREFETCHER ||= cf::async {	1993	$MAP_PREFETCHER ||= cf::async {
1618	while (%MAP_PREFETCH) {	1994	while (%MAP_PREFETCH) {
1619	for my $path (keys %MAP_PREFETCH) {	1995	for my $path (keys %MAP_PREFETCH) {
1620	my $map = find $path	1996	if (my $map = find $path) {
1621	or next;
1622	$map->load;	1997	$map->load;
		1998	}
1623		1999
1624	delete $MAP_PREFETCH{$path};	2000	delete $MAP_PREFETCH{$path};
1625	}	2001	}
1626	}	2002	}
1627	undef $MAP_PREFETCHER;	2003	undef $MAP_PREFETCHER;
…		…
1679		2055
1680	sub reset_at {	2056	sub reset_at {
1681	my ($self) = @_;	2057	my ($self) = @_;
1682		2058
1683	# TODO: safety, remove and allow resettable per-player maps	2059	# 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};	2060	return 1e99 if $self->{deny_reset};
1686		2061
1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2062	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2063	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1689		2064
…		…
1700	my ($self) = @_;	2075	my ($self) = @_;
1701		2076
1702	my $lock = cf::lock_acquire "map_data:$self->{path}";	2077	my $lock = cf::lock_acquire "map_data:$self->{path}";
1703		2078
1704	return if $self->players;	2079	return if $self->players;
1705	return if $self->isa ("ext::map_per_player");#d#
1706		2080
1707	warn "resetting map ", $self->path;#d#	2081	warn "resetting map ", $self->path;
1708		2082
1709	$self->in_memory (cf::MAP_SWAPPED);	2083	$self->in_memory (cf::MAP_SWAPPED);
1710		2084
1711	# need to save uniques path	2085	# need to save uniques path
1712	unless ($self->{deny_save}) {	2086	unless ($self->{deny_save}) {
…		…
1744	$cf::MAP{$self->path} = $self;	2118	$cf::MAP{$self->path} = $self;
1745		2119
1746	$self->reset; # polite request, might not happen	2120	$self->reset; # polite request, might not happen
1747	}	2121	}
1748		2122
		2123	=item $maps = cf::map::tmp_maps
		2124
		2125	Returns an arrayref with all map paths of currently instantiated and saved
		2126	maps. May block.
		2127
		2128	=cut
		2129
		2130	sub tmp_maps() {
		2131	[
		2132	map {
		2133	utf8::decode $_;
		2134	/\.map$/
		2135	? normalise $_
		2136	: ()
		2137	} @{ aio_readdir $TMPDIR or [] }
		2138	]
		2139	}
		2140
		2141	=item $maps = cf::map::random_maps
		2142
		2143	Returns an arrayref with all map paths of currently instantiated and saved
		2144	random maps. May block.
		2145
		2146	=cut
		2147
		2148	sub random_maps() {
		2149	[
		2150	map {
		2151	utf8::decode $_;
		2152	/\.map$/
		2153	? normalise "?random/$_"
		2154	: ()
		2155	} @{ aio_readdir $RANDOMDIR or [] }
		2156	]
		2157	}
		2158
1749	=item cf::map::unique_maps	2159	=item cf::map::unique_maps
1750		2160
1751	Returns an arrayref of paths of all shared maps that have	2161	Returns an arrayref of paths of all shared maps that have
1752	instantiated unique items. May block.	2162	instantiated unique items. May block.
1753		2163
1754	=cut	2164	=cut
1755		2165
1756	sub unique_maps() {	2166	sub unique_maps() {
1757	my $files = aio_readdir $UNIQUEDIR	2167	[
1758	or return;	2168	map {
1759
1760	my @paths;
1761
1762	for (@$files) {
1763	utf8::decode $_;	2169	utf8::decode $_;
1764	next if /\.pst$/;	2170	/\.map$/
1765	next unless /^$PATH_SEP/o;	2171	? normalise $_
1766		2172	: ()
1767	push @paths, cf::map::normalise $_;	2173	} @{ aio_readdir $UNIQUEDIR or [] }
1768	}	2174	]
1769
1770	\@paths
1771	}	2175	}
1772		2176
1773	package cf;	2177	package cf;
1774		2178
1775	=back	2179	=back
…		…
1821		2225
1822	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2226	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1823		2227
1824	if ($self->{record_replies}) {	2228	if ($self->{record_replies}) {
1825	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2229	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2230
1826	} else {	2231	} else {
		2232	my $pl = $self->contr;
		2233
		2234	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2235	my $dialog = $pl->{npc_dialog};
		2236	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2237
		2238	} else {
1827	$msg = $npc->name . " says: $msg" if $npc;	2239	$msg = $npc->name . " says: $msg" if $npc;
1828	$self->message ($msg, $flags);	2240	$self->message ($msg, $flags);
		2241	}
1829	}	2242	}
1830	}	2243	}
1831		2244
1832	=item $player_object->may ("access")	2245	=item $player_object->may ("access")
1833		2246
…		…
1881	$self->deactivate_recursive;	2294	$self->deactivate_recursive;
1882		2295
1883	return if UNIVERSAL::isa $self->map, "ext::map_link";	2296	return if UNIVERSAL::isa $self->map, "ext::map_link";
1884		2297
1885	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2298	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1886	if $self->map;	2299	if $self->map && $self->map->{path} ne "{link}";
1887		2300
1888	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2301	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1889	}	2302	}
1890		2303
1891	sub cf::object::player::leave_link {	2304	sub cf::object::player::leave_link {
1892	my ($self, $map, $x, $y) = @_;	2305	my ($self, $map, $x, $y) = @_;
		2306
		2307	return unless $self->contr->active;
1893		2308
1894	my $link_pos = delete $self->{_link_pos};	2309	my $link_pos = delete $self->{_link_pos};
1895		2310
1896	unless ($map) {	2311	unless ($map) {
1897	# restore original map position	2312	# restore original map position
…		…
1920		2335
1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2336	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1922	$self->enter_map ($map, $x, $y);	2337	$self->enter_map ($map, $x, $y);
1923	}	2338	}
1924		2339
1925	cf::player->attach (	2340	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1926	on_logout => sub {
1927	my ($pl) = @_;
1928		2341
1929	# abort map switching before logout	2342	Moves the player to the given map-path and coordinates by first freezing
1930	if ($pl->ob->{_link_pos}) {	2343	her, loading and preparing them map, calling the provided $check callback
1931	cf::sync_job {	2344	that has to return the map if sucecssful, and then unfreezes the player on
1932	$pl->ob->leave_link	2345	the new (success) or old (failed) map position. In either case, $done will
1933	};	2346	be called at the end of this process.
1934	}
1935	},
1936	on_login => sub {
1937	my ($pl) = @_;
1938		2347
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	2348	=cut
		2349
		2350	our $GOTOGEN;
1960		2351
1961	sub cf::object::player::goto {	2352	sub cf::object::player::goto {
1962	my ($self, $path, $x, $y) = @_;	2353	my ($self, $path, $x, $y, $check, $done) = @_;
		2354
		2355	# do generation counting so two concurrent goto's will be executed in-order
		2356	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1963		2357
1964	$self->enter_link;	2358	$self->enter_link;
1965		2359
1966	(async {	2360	(async {
1967	my $map = eval {	2361	my $map = eval {
1968	my $map = cf::map::find $path;	2362	my $map = cf::map::find $path;
		2363
		2364	if ($map) {
1969	$map = $map->customise_for ($self) if $map;	2365	$map = $map->customise_for ($self);
		2366	$map = $check->($map) if $check && $map;
		2367	} else {
		2368	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2369	}
		2370
1970	$map	2371	$map
		2372	};
		2373
		2374	if ($@) {
		2375	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2376	LOG llevError | logBacktrace, Carp::longmess $@;
1971	} or	2377	}
1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1973		2378
		2379	if ($gen == $self->{_goto_generation}) {
		2380	delete $self->{_goto_generation};
1974	$self->leave_link ($map, $x, $y);	2381	$self->leave_link ($map, $x, $y);
		2382	}
		2383
		2384	$done->() if $done;
1975	})->prio (1);	2385	})->prio (1);
1976	}	2386	}
1977		2387
1978	=item $player_object->enter_exit ($exit_object)	2388	=item $player_object->enter_exit ($exit_object)
1979		2389
…		…
2048	my $hp = $exit->stats->hp;	2458	my $hp = $exit->stats->hp;
2049	my $sp = $exit->stats->sp;	2459	my $sp = $exit->stats->sp;
2050		2460
2051	$self->enter_link;	2461	$self->enter_link;
2052		2462
		2463	# if exit is damned, update players death & WoR home-position
		2464	$self->contr->savebed ($slaying, $hp, $sp)
		2465	if $exit->flag (FLAG_DAMNED);
		2466
2053	(async {	2467	(async {
2054	$self->deactivate_recursive; # just to be sure	2468	$self->deactivate_recursive; # just to be sure
2055	unless (eval {	2469	unless (eval {
2056	$self->goto ($slaying, $hp, $sp);	2470	$self->goto ($slaying, $hp, $sp);
2057		2471
…		…
2084		2498
2085	utf8::encode $text;	2499	utf8::encode $text;
2086	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2500	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2087	}	2501	}
2088		2502
		2503	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2504
		2505	Send a drawinfo or msg packet to the client, formatting the msg for the
		2506	client if neccessary. C<$type> should be a string identifying the type of
		2507	the message, with C<log> being the default. If C<$color> is negative, suppress
		2508	the message unless the client supports the msg packet.
		2509
		2510	=cut
		2511
		2512	sub cf::client::send_msg {
		2513	my ($self, $channel, $msg, $color, @extra) = @_;
		2514
		2515	$msg = $self->pl->expand_cfpod ($msg);
		2516
		2517	$color &= ~cf::NDI_UNIQUE; # just in case...
		2518
		2519	if (ref $channel) {
		2520	# send meta info to client, if not yet sent
		2521	unless (exists $self->{channel}{$channel->{id}}) {
		2522	$self->{channel}{$channel->{id}} = $channel;
		2523	$self->ext_msg (channel_info => %$channel);
		2524	}
		2525
		2526	$channel = $channel->{id};
		2527	}
		2528
		2529	return unless @extra || length $msg;
		2530
		2531	if ($self->can_msg) {
		2532	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2533	} else {
		2534	# replace some tags by gcfclient-compatible ones
		2535	for ($msg) {
		2536	1 while
		2537	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2538	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2539	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2540	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2541	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2542	}
		2543
		2544	if ($color >= 0) {
		2545	if (0 && $msg =~ /\[/) {
		2546	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2547	} else {
		2548	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2549	$self->send_packet ("drawinfo $color $msg")
		2550	}
		2551	}
		2552	}
		2553	}
		2554
2089	=item $client->ext_event ($type, %msg)	2555	=item $client->ext_msg ($type, @msg)
2090		2556
2091	Sends an exti event to the client.	2557	Sends an ext event to the client.
2092		2558
2093	=cut	2559	=cut
2094		2560
2095	sub cf::client::ext_event($$%) {	2561	sub cf::client::ext_msg($$@) {
2096	my ($self, $type, %msg) = @_;	2562	my ($self, $type, @msg) = @_;
2097		2563
		2564	my $extcmd = $self->extcmd;
		2565
		2566	if ($extcmd == 2) {
		2567	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2568	} elsif ($extcmd == 1) { # TODO: remove
2098	$msg{msgtype} = "event_$type";	2569	push @msg, msgtype => "event_$type";
2099	$self->send_packet ("ext " . cf::to_json \%msg);	2570	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2571	}
2100	}	2572	}
2101		2573
2102	=item $success = $client->query ($flags, "text", \&cb)	2574	=item $success = $client->query ($flags, "text", \&cb)
2103		2575
2104	Queues a query to the client, calling the given callback with	2576	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>,	2577	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>.	2578	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2107		2579
2108	Queries can fail, so check the return code. Or don't, as queries will become	2580	Queries can fail, so check the return code. Or don't, as queries will
2109	reliable at some point in the future.	2581	become reliable at some point in the future.
2110		2582
2111	=cut	2583	=cut
2112		2584
2113	sub cf::client::query {	2585	sub cf::client::query {
2114	my ($self, $flags, $text, $cb) = @_;	2586	my ($self, $flags, $text, $cb) = @_;
…		…
2122	utf8::encode $text;	2594	utf8::encode $text;
2123	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2124		2596
2125	$self->send_packet ($self->{query_queue}[0][0])	2597	$self->send_packet ($self->{query_queue}[0][0])
2126	if @{ $self->{query_queue} } == 1;	2598	if @{ $self->{query_queue} } == 1;
		2599
		2600	1
2127	}	2601	}
2128		2602
2129	cf::client->attach (	2603	cf::client->attach (
		2604	on_connect => sub {
		2605	my ($ns) = @_;
		2606
		2607	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2608	},
2130	on_reply => sub {	2609	on_reply => sub {
2131	my ($ns, $msg) = @_;	2610	my ($ns, $msg) = @_;
2132		2611
2133	# this weird shuffling is so that direct followup queries	2612	# this weird shuffling is so that direct followup queries
2134	# get handled first	2613	# get handled first
…		…
2146	} else {	2625	} else {
2147	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2626	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2148	}	2627	}
2149	}	2628	}
2150	},	2629	},
		2630	on_exticmd => sub {
		2631	my ($ns, $buf) = @_;
		2632
		2633	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2634
		2635	if (ref $msg) {
		2636	my ($type, $reply, @payload) =
		2637	"ARRAY" eq ref $msg
		2638	? @$msg
		2639	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2640
		2641	if (my $cb = $EXTICMD{$type}) {
		2642	my @reply = $cb->($ns, @payload);
		2643
		2644	$ns->ext_reply ($reply, @reply)
		2645	if $reply;
		2646	}
		2647	} else {
		2648	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2649	}
		2650
		2651	cf::override;
		2652	},
2151	);	2653	);
2152		2654
2153	=item $client->async (\&cb)	2655	=item $client->async (\&cb)
2154		2656
2155	Create a new coroutine, running the specified callback. The coroutine will	2657	Create a new coroutine, running the specified callback. The coroutine will
…		…
2204		2706
2205	=pod	2707	=pod
2206		2708
2207	The following functions and methods are available within a safe environment:	2709	The following functions and methods are available within a safe environment:
2208		2710
2209	cf::object contr pay_amount pay_player map	2711	cf::object
		2712	contr pay_amount pay_player map x y force_find force_add
		2713	insert remove
		2714
2210	cf::object::player player	2715	cf::object::player
2211	cf::player peaceful	2716	player
2212	cf::map trigger	2717
		2718	cf::player
		2719	peaceful
		2720
		2721	cf::map
		2722	trigger
2213		2723
2214	=cut	2724	=cut
2215		2725
2216	for (	2726	for (
2217	["cf::object" => qw(contr pay_amount pay_player map)],	2727	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2728	insert remove)],
2218	["cf::object::player" => qw(player)],	2729	["cf::object::player" => qw(player)],
2219	["cf::player" => qw(peaceful)],	2730	["cf::player" => qw(peaceful)],
2220	["cf::map" => qw(trigger)],	2731	["cf::map" => qw(trigger)],
2221	) {	2732	) {
2222	no strict 'refs';	2733	no strict 'refs';
…		…
2293	=back	2804	=back
2294		2805
2295	=cut	2806	=cut
2296		2807
2297	#############################################################################	2808	#############################################################################
2298
2299	=head2 EXTENSION DATABASE SUPPORT
2300
2301	Crossfire maintains a very simple database for extension use. It can
2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2303	convert to/from binary).
2304
2305	The parameter C<$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 $@;
2465	_exit 0;
2466	}
2467	}
2468
2469
2470
2471	#############################################################################
2472	# the server's init and main functions	2809	# the server's init and main functions
2473		2810
2474	sub load_facedata($) {	2811	sub load_facedata($) {
2475	my ($path) = @_;	2812	my ($path) = @_;
2476		2813
…		…
2488	{	2825	{
2489	my $faces = $facedata->{faceinfo};	2826	my $faces = $facedata->{faceinfo};
2490		2827
2491	while (my ($face, $info) = each %$faces) {	2828	while (my ($face, $info) = each %$faces) {
2492	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2829	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2493	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2830	cf::face::set_visibility $idx, $info->{visibility};
		2831	cf::face::set_magicmap $idx, $info->{magicmap};
2494	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2832	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2495	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2833	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2496	Coro::cede;	2834
		2835	cf::cede_to_tick;
2497	}	2836	}
2498		2837
2499	while (my ($face, $info) = each %$faces) {	2838	while (my ($face, $info) = each %$faces) {
2500	next unless $info->{smooth};	2839	next unless $info->{smooth};
2501	my $idx = cf::face::find $face	2840	my $idx = cf::face::find $face
2502	or next;	2841	or next;
2503	if (my $smooth = cf::face::find $info->{smooth}) {	2842	if (my $smooth = cf::face::find $info->{smooth}) {
		2843	cf::face::set_smooth $idx, $smooth;
2504	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2844	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2505	} else {	2845	} else {
2506	warn "smooth face '$info->{smooth}' not found for face '$face'";	2846	warn "smooth face '$info->{smooth}' not found for face '$face'";
2507	}	2847	}
2508	Coro::cede;	2848
		2849	cf::cede_to_tick;
2509	}	2850	}
2510	}	2851	}
2511		2852
2512	{	2853	{
2513	my $anims = $facedata->{animinfo};	2854	my $anims = $facedata->{animinfo};
2514		2855
2515	while (my ($anim, $info) = each %$anims) {	2856	while (my ($anim, $info) = each %$anims) {
2516	cf::anim::set $anim, $info->{frames}, $info->{facings};	2857	cf::anim::set $anim, $info->{frames}, $info->{facings};
2517	Coro::cede;	2858	cf::cede_to_tick;
2518	}	2859	}
2519		2860
2520	cf::anim::invalidate_all; # d'oh	2861	cf::anim::invalidate_all; # d'oh
2521	}	2862	}
2522		2863
		2864	{
		2865	# TODO: for gcfclient pleasure, we should give resources
		2866	# that gcfclient doesn't grok a >10000 face index.
		2867	my $res = $facedata->{resource};
		2868	my $enc = JSON::XS->new->utf8->canonical;
		2869
		2870	while (my ($name, $info) = each %$res) {
		2871	my $meta = $enc->encode ({
		2872	name => $name,
		2873	copyright => $info->{copyright}, #TODO#
		2874	});
		2875
		2876	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2877
		2878	if ($info->{type} & 1) {
		2879	# prepend meta info
		2880
		2881	my $data = pack "(w/a*)*", $meta, $info->{data};
		2882	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2883
		2884	cf::face::set_data $idx, 0, $data, $chk;
		2885	} else {
		2886	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2887	}
		2888
		2889	cf::face::set_type $idx, $info->{type};
		2890
		2891	cf::cede_to_tick;
		2892	}
		2893	}
		2894
2523	1	2895	1
2524	}	2896	}
		2897
		2898	register_exticmd fx_want => sub {
		2899	my ($ns, $want) = @_;
		2900
		2901	while (my ($k, $v) = each %$want) {
		2902	$ns->fx_want ($k, $v);
		2903	}
		2904	};
2525		2905
2526	sub reload_regions {	2906	sub reload_regions {
2527	load_resource_file "$MAPDIR/regions"	2907	load_resource_file "$MAPDIR/regions"
2528	or die "unable to load regions file\n";	2908	or die "unable to load regions file\n";
		2909
		2910	for (cf::region::list) {
		2911	$_->{match} = qr/$_->{match}/
		2912	if exists $_->{match};
		2913	}
2529	}	2914	}
2530		2915
2531	sub reload_facedata {	2916	sub reload_facedata {
2532	load_facedata "$DATADIR/facedata"	2917	load_facedata "$DATADIR/facedata"
2533	or die "unable to load facedata\n";	2918	or die "unable to load facedata\n";
2534	}	2919	}
2535		2920
2536	sub reload_archetypes {	2921	sub reload_archetypes {
2537	load_resource_file "$DATADIR/archetypes"	2922	load_resource_file "$DATADIR/archetypes"
2538	or die "unable to load archetypes\n";	2923	or die "unable to load archetypes\n";
		2924	#d# NEED to laod twice to resolve forward references
		2925	# this really needs to be done in an extra post-pass
		2926	# (which needs to be synchronous, so solve it differently)
		2927	load_resource_file "$DATADIR/archetypes"
		2928	or die "unable to load archetypes\n";
2539	}	2929	}
2540		2930
2541	sub reload_treasures {	2931	sub reload_treasures {
2542	load_resource_file "$DATADIR/treasures"	2932	load_resource_file "$DATADIR/treasures"
2543	or die "unable to load treasurelists\n";	2933	or die "unable to load treasurelists\n";
…		…
2546	sub reload_resources {	2936	sub reload_resources {
2547	warn "reloading resource files...\n";	2937	warn "reloading resource files...\n";
2548		2938
2549	reload_regions;	2939	reload_regions;
2550	reload_facedata;	2940	reload_facedata;
		2941	#reload_archetypes;#d#
2551	reload_archetypes;	2942	reload_archetypes;
2552	reload_treasures;	2943	reload_treasures;
2553		2944
2554	warn "finished reloading resource files\n";	2945	warn "finished reloading resource files\n";
2555	}	2946	}
…		…
2612	},	3003	},
2613	);	3004	);
2614	}	3005	}
2615	}	3006	}
2616		3007
		3008	sub write_runtime {
		3009	my $runtime = "$LOCALDIR/runtime";
		3010
		3011	# first touch the runtime file to show we are still running:
		3012	# the fsync below can take a very very long time.
		3013
		3014	IO::AIO::aio_utime $runtime, undef, undef;
		3015
		3016	my $guard = cf::lock_acquire "write_runtime";
		3017
		3018	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3019	or return;
		3020
		3021	my $value = $cf::RUNTIME + 90 + 10;
		3022	# 10 is the runtime save interval, for a monotonic clock
		3023	# 60 allows for the watchdog to kill the server.
		3024
		3025	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3026	and return;
		3027
		3028	# always fsync - this file is important
		3029	aio_fsync $fh
		3030	and return;
		3031
		3032	# touch it again to show we are up-to-date
		3033	aio_utime $fh, undef, undef;
		3034
		3035	close $fh
		3036	or return;
		3037
		3038	aio_rename "$runtime~", $runtime
		3039	and return;
		3040
		3041	warn "runtime file written.\n";
		3042
		3043	1
		3044	}
		3045
2617	sub emergency_save() {	3046	sub emergency_save() {
2618	my $freeze_guard = cf::freeze_mainloop;	3047	my $freeze_guard = cf::freeze_mainloop;
2619		3048
2620	warn "enter emergency perl save\n";	3049	warn "enter emergency perl save\n";
2621		3050
…		…
2696	%EXT_CORO = ();	3125	%EXT_CORO = ();
2697		3126
2698	warn "removing commands";	3127	warn "removing commands";
2699	%COMMAND = ();	3128	%COMMAND = ();
2700		3129
2701	warn "removing ext commands";	3130	warn "removing ext/exti commands";
2702	%EXTCMD = ();	3131	%EXTCMD = ();
		3132	%EXTICMD = ();
2703		3133
2704	warn "unloading/nuking all extensions";	3134	warn "unloading/nuking all extensions";
2705	for my $pkg (@EXTS) {	3135	for my $pkg (@EXTS) {
2706	warn "... unloading $pkg";	3136	warn "... unloading $pkg";
2707		3137
…		…
2825	my $signal = new Coro::Signal;	3255	my $signal = new Coro::Signal;
2826	push @WAIT_FOR_TICK_BEGIN, $signal;	3256	push @WAIT_FOR_TICK_BEGIN, $signal;
2827	$signal->wait;	3257	$signal->wait;
2828	}	3258	}
2829		3259
		3260	my $min = 1e6;#d#
		3261	my $avg = 10;
2830	$TICK_WATCHER = Event->timer (	3262	$TICK_WATCHER = Event->timer (
2831	reentrant => 0,	3263	reentrant => 0,
2832	parked => 1,	3264	parked => 1,
2833	prio => 0,	3265	prio => 0,
2834	at => $NEXT_TICK || $TICK,	3266	at => $NEXT_TICK || $TICK,
…		…
2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3270	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2839	unless ++$bug_warning > 10;	3271	unless ++$bug_warning > 10;
2840	return;	3272	return;
2841	}	3273	}
2842		3274
2843	$NOW = Event::time;	3275	$NOW = $tick_start = Event::time;
2844		3276
2845	cf::server_tick; # one server iteration	3277	cf::server_tick; # one server iteration
		3278
		3279	0 && sync_job {#d#
		3280	for(1..10) {
		3281	my $t = Event::time;
		3282	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3283	or die;
		3284
		3285	$map->width (50);
		3286	$map->height (50);
		3287	$map->alloc;
		3288	$map->_load_objects ("/tmp/x.map", 1);
		3289	my $t = Event::time - $t;
		3290
		3291	#next unless $t < 0.0013;#d#
		3292	if ($t < $min) {
		3293	$min = $t;
		3294	}
		3295	$avg = $avg * 0.99 + $t * 0.01;
		3296	}
		3297	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3298	exit 0;
		3299	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3300	};
2846		3301
2847	$RUNTIME += $TICK;	3302	$RUNTIME += $TICK;
2848	$NEXT_TICK += $TICK;	3303	$NEXT_TICK += $TICK;
2849		3304
2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3305	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2856	}	3311	}
2857		3312
2858	# my $AFTER = Event::time;	3313	# my $AFTER = Event::time;
2859	# warn $AFTER - $NOW;#d#	3314	# warn $AFTER - $NOW;#d#
2860		3315
		3316	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3317	$sig->send;
		3318	}
		3319	while (my $sig = shift @WAIT_FOR_TICK) {
		3320	$sig->send;
		3321	}
		3322
		3323	$NOW = Event::time;
		3324
2861	# if we are delayed by four ticks or more, skip them all	3325	# if we are delayed by four ticks or more, skip them all
2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3326	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2863		3327
2864	$TICK_WATCHER->at ($NEXT_TICK);	3328	$TICK_WATCHER->at ($NEXT_TICK);
2865	$TICK_WATCHER->start;	3329	$TICK_WATCHER->start;
2866		3330
2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3331	$LOAD = ($NOW - $tick_start) / $TICK;
2868	$sig->send;	3332	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2869	}
2870	while (my $sig = shift @WAIT_FOR_TICK) {
2871	$sig->send;
2872	}
2873		3333
2874	_post_tick;	3334	_post_tick;
		3335
		3336
2875	},	3337	},
2876	);	3338	);
2877		3339
2878	{	3340	{
2879	BDB::max_poll_time $TICK * 0.1;	3341	BDB::max_poll_time $TICK * 0.1;

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