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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.258 by root, Sat Apr 21 17:43:42 2007 UTC vs.
Revision 1.319 by root, Tue Jul 24 15:56:45 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 $guard = cf::lock_acquire "write_runtime";
373		469
374	my $runtime = "$LOCALDIR/runtime";	470	Executes the given code block with the given arguments in a seperate
		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.
375		474
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	475	=cut
377	or return;
378		476
379	my $value = $cf::RUNTIME + 90 + 10;	477	sub _store_scalar {
380	# 10 is the runtime save interval, for a monotonic clock	478	open my $fh, ">", \my $buf
381	# 60 allows for the watchdog to kill the server.	479	or die "fork_call: cannot open fh-to-buf in child : $!";
382		480	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	481	close $fh;
391	or return;
392		482
393	aio_rename "$runtime~", $runtime	483	$buf
394	and return;	484	}
395		485
		486	sub fork_call(&@) {
		487	my ($cb, @args) = @_;
		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;
396	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"
397	}	644	}
398		645
399	=item cf::datalog type => key => value, ...	646	=item cf::datalog type => key => value, ...
400		647
401	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.
…		…
419	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")
420	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
421		668
422	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>
423	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
424	crossfire+).	671	Crossfire TRT).
425		672
426	=over 4	673	=over 4
427		674
428	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
429		676
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
593		840
594	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		845
599	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	847	my $pkg = shift @arg;
601		848
602	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
632	}	879	}
633		880
634	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
635	} else {	882	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	884	}
638		885
639	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
640	}	887	}
641		888
…		…
643	if (ref $_[0]) {	890	if (ref $_[0]) {
644	_object_attach @_;	891	_object_attach @_;
645	} else {	892	} else {
646	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
647	}	894	}
		895	_recalc_want;
648	};	896	};
649		897
650	# all those should be optimised	898	# all those should be optimised
651	sub cf::attachable::detach {	899	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
656	reattach ($obj);	904	reattach ($obj);
657	} else {	905	} else {
658	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
659	}	907	}
		908	_recalc_want;
660	};	909	};
661		910
662	sub cf::attachable::attached {	911	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
664		913
…		…
679	";	928	";
680	die if $@;	929	die if $@;
681	}	930	}
682		931
683	our $override;	932	our $override;
684	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?
685		934
686	sub override {	935	sub override {
687	$override = 1;	936	$override = 1;
688	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
689	}	938	}
690		939
691	sub do_invoke {	940	sub do_invoke {
692	my $event = shift;	941	my $event = shift;
693	my $callbacks = shift;	942	my $callbacks = shift;
694		943
695	@invoke_results = ();	944	@INVOKE_RESULTS = ();
696		945
697	local $override;	946	local $override;
698		947
699	for (@$callbacks) {	948	for (@$callbacks) {
700	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
717		966
718	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
719		968
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	970	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		972
724	=back	973	=back
725		974
726	=cut	975	=cut
727		976
728	#############################################################################	977	#############################################################################
729	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
730		990
731	sub reattach {	991	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	993	my ($obj) = @_;
734		994
…		…
837	or return;	1097	or return;
838	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
839	}	1099	}
840		1100
841	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
843	return ($data, $av);	1103	return ($data, $av);
844	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
845		1111
846	#############################################################################	1112	#############################################################################
847	# command handling &c	1113	# command handling &c
848		1114
849	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1129	}
864		1130
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1132
867	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.
868		1138
869	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
870	called.	1140	called.
871		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
872	=cut	1153	=cut
873		1154
874	sub register_extcmd {	1155	sub register_extcmd {
875	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
876		1157
877	$EXTCMD{$name} = $cb;	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
878	}	1165	}
879		1166
880	cf::player->attach (	1167	cf::player->attach (
881	on_command => sub {	1168	on_command => sub {
882	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
891	cf::override;	1178	cf::override;
892	},	1179	},
893	on_extcmd => sub {	1180	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
895		1182
896	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1184
898	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
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
901	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
902	}	1195	if $reply;
903	}	1196	}
904	} else {	1197	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1199	}
907		1200
908	cf::override;	1201	cf::override;
909	},	1202	},
910	);	1203	);
911		1204
912	sub load_extension {
913	my ($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 {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
947	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1210	next unless -r $path;
949	eval {	1211
950	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	$progress = 1;
951	1	1269	}
952	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
953	}	1275	};
954	}	1276	}
955		1277
956	#############################################################################	1278	#############################################################################
		1279
		1280	=back
957		1281
958	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
959		1283
960	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
961		1285
…		…
1149	}	1473	}
1150		1474
1151	\@paths	1475	\@paths
1152	}	1476	}
1153		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
1154	=item $player->ext_reply ($msgid, %msg)	1528	=item $player->ext_reply ($msgid, @msg)
1155		1529
1156	Sends an ext reply to the player.	1530	Sends an ext reply to the player.
1157		1531
1158	=cut	1532	=cut
1159		1533
1160	sub ext_reply($$%) {	1534	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1535	my ($self, $id, @msg) = @_;
1162		1536
1163	$msg{msgid} = $id;	1537	if ($self->ns->extcmd == 2) {
1164		1538	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
1165	$self->send ("ext " . cf::to_json \%msg);	1539	} elsif ($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	}
1166	}	1544	}
1167		1545
1168	=item $player->ext_event ($type, %msg)	1546	=item $player->ext_msg ($type, @msg)
1169		1547
1170	Sends an ext event to the client.	1548	Sends an ext event to the client.
1171		1549
1172	=cut	1550	=cut
1173		1551
1174	sub ext_event($$%) {	1552	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1553	my ($self, $type, @msg) = @_;
1176		1554
1177	$self->ns->ext_event ($type, %msg);	1555	$self->ns->ext_msg ($type, @msg);
1178	}	1556	}
1179		1557
1180	=head3 cf::region	1558	=head3 cf::region
1181		1559
1182	=over 4	1560	=over 4
…		…
1185		1563
1186	package cf::region;	1564	package cf::region;
1187		1565
1188	=item cf::region::find_by_path $path	1566	=item cf::region::find_by_path $path
1189		1567
1190	Tries to decuce the probable region for a map knowing only its path.	1568	Tries to decuce the likely region for a map knowing only its path.
1191		1569
1192	=cut	1570	=cut
1193		1571
1194	sub find_by_path($) {	1572	sub find_by_path($) {
1195	my ($path) = @_;	1573	my ($path) = @_;
1196		1574
1197	my ($match, $specificity);	1575	my ($match, $specificity);
1198		1576
1199	for my $region (list) {	1577	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1578	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1579	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1580	if $region->specificity > $specificity;
1203	}	1581	}
1204	}	1582	}
1205		1583
…		…
1269	my ($self, $merge) = @_;	1647	my ($self, $merge) = @_;
1270		1648
1271	# we have to keep some variables in memory intact	1649	# we have to keep some variables in memory intact
1272	local $self->{path};	1650	local $self->{path};
1273	local $self->{load_path};	1651	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1652
1277	$self->SUPER::thawer_merge ($merge);	1653	$self->SUPER::thawer_merge ($merge);
1278	}	1654	}
1279		1655
1280	sub normalise {	1656	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1703	$self->init; # pass $1 etc.
1328	return $self;	1704	return $self;
1329	}	1705	}
1330	}	1706	}
1331		1707
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1708	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1709	()
1334	}	1710	}
1335		1711
1336	sub init {	1712	sub init {
1337	my ($self) = @_;	1713	my ($self) = @_;
…		…
1378	sub change_all_map_light {	1754	sub change_all_map_light {
1379	my ($change) = @_;	1755	my ($change) = @_;
1380		1756
1381	$_->change_map_light ($change)	1757	$_->change_map_light ($change)
1382	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	$self->do_decay_objects;
1383	}	1767	}
1384		1768
1385	sub unlink_save {	1769	sub unlink_save {
1386	my ($self) = @_;	1770	my ($self) = @_;
1387		1771
…		…
1445	$self->load_header_orig	1829	$self->load_header_orig
1446	or return;	1830	or return;
1447	$self->prepare_orig;	1831	$self->prepare_orig;
1448	}	1832	}
1449		1833
		1834	$self->{deny_reset} = 1
		1835	if $self->no_reset;
		1836
1450	$self->default_region (cf::region::find_by_path $self->{path})	1837	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1838	unless $self->default_region;
1452		1839
1453	1	1840	1
1454	}	1841	}
…		…
1469	$map->{last_save} = $cf::RUNTIME;	1856	$map->{last_save} = $cf::RUNTIME;
1470		1857
1471	$map->load_header	1858	$map->load_header
1472	or return;	1859	or return;
1473		1860
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1861	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	1862	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	1863	#$cf::WAIT_FOR_TICK->wait;
1477	$map->reset;	1864	$map->reset;
1478	undef $guard;	1865	undef $guard;
1479	return find $path;	1866	return find $path;
…		…
1546	my ($self, $ob) = @_;	1933	my ($self, $ob) = @_;
1547		1934
1548	return find "~" . $ob->name . "/" . $self->{path}	1935	return find "~" . $ob->name . "/" . $self->{path}
1549	if $self->per_player;	1936	if $self->per_player;
1550		1937
		1938	# return find "?party/" . $ob->name . "/" . $self->{path}
		1939	# if $self->per_party;
		1940
1551	$self	1941	$self
1552	}	1942	}
1553		1943
1554	# 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
1555	sub load_diag {	1945	sub load_diag {
…		…
1601		1991
1602	undef $MAP_PREFETCH{$path};	1992	undef $MAP_PREFETCH{$path};
1603	$MAP_PREFETCHER ||= cf::async {	1993	$MAP_PREFETCHER ||= cf::async {
1604	while (%MAP_PREFETCH) {	1994	while (%MAP_PREFETCH) {
1605	for my $path (keys %MAP_PREFETCH) {	1995	for my $path (keys %MAP_PREFETCH) {
1606	my $map = find $path	1996	if (my $map = find $path) {
1607	or next;
1608	$map->load;	1997	$map->load;
		1998	}
1609		1999
1610	delete $MAP_PREFETCH{$path};	2000	delete $MAP_PREFETCH{$path};
1611	}	2001	}
1612	}	2002	}
1613	undef $MAP_PREFETCHER;	2003	undef $MAP_PREFETCHER;
…		…
1665		2055
1666	sub reset_at {	2056	sub reset_at {
1667	my ($self) = @_;	2057	my ($self) = @_;
1668		2058
1669	# TODO: safety, remove and allow resettable per-player maps	2059	# 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};	2060	return 1e99 if $self->{deny_reset};
1672		2061
1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2062	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2063	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1675		2064
…		…
1686	my ($self) = @_;	2075	my ($self) = @_;
1687		2076
1688	my $lock = cf::lock_acquire "map_data:$self->{path}";	2077	my $lock = cf::lock_acquire "map_data:$self->{path}";
1689		2078
1690	return if $self->players;	2079	return if $self->players;
1691	return if $self->isa ("ext::map_per_player");#d#
1692		2080
1693	warn "resetting map ", $self->path;#d#	2081	warn "resetting map ", $self->path;
1694		2082
1695	$self->in_memory (cf::MAP_SWAPPED);	2083	$self->in_memory (cf::MAP_SWAPPED);
1696		2084
1697	# need to save uniques path	2085	# need to save uniques path
1698	unless ($self->{deny_save}) {	2086	unless ($self->{deny_save}) {
…		…
1730	$cf::MAP{$self->path} = $self;	2118	$cf::MAP{$self->path} = $self;
1731		2119
1732	$self->reset; # polite request, might not happen	2120	$self->reset; # polite request, might not happen
1733	}	2121	}
1734		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
1735	=item cf::map::unique_maps	2159	=item cf::map::unique_maps
1736		2160
1737	Returns an arrayref of paths of all shared maps that have	2161	Returns an arrayref of paths of all shared maps that have
1738	instantiated unique items. May block.	2162	instantiated unique items. May block.
1739		2163
1740	=cut	2164	=cut
1741		2165
1742	sub unique_maps() {	2166	sub unique_maps() {
1743	my $files = aio_readdir $UNIQUEDIR	2167	[
1744	or return;	2168	map {
1745
1746	my @paths;
1747
1748	for (@$files) {
1749	utf8::decode $_;	2169	utf8::decode $_;
1750	next if /\.pst$/;	2170	/\.map$/
1751	next unless /^$PATH_SEP/o;	2171	? normalise $_
1752		2172	: ()
1753	push @paths, cf::map::normalise $_;	2173	} @{ aio_readdir $UNIQUEDIR or [] }
1754	}	2174	]
1755
1756	\@paths
1757	}	2175	}
1758		2176
1759	package cf;	2177	package cf;
1760		2178
1761	=back	2179	=back
…		…
1807		2225
1808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2226	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1809		2227
1810	if ($self->{record_replies}) {	2228	if ($self->{record_replies}) {
1811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2229	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2230
1812	} 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 {
1813	$msg = $npc->name . " says: $msg" if $npc;	2239	$msg = $npc->name . " says: $msg" if $npc;
1814	$self->message ($msg, $flags);	2240	$self->message ($msg, $flags);
		2241	}
1815	}	2242	}
1816	}	2243	}
1817		2244
1818	=item $player_object->may ("access")	2245	=item $player_object->may ("access")
1819		2246
…		…
1862	}	2289	}
1863		2290
1864	sub cf::object::player::enter_link {	2291	sub cf::object::player::enter_link {
1865	my ($self) = @_;	2292	my ($self) = @_;
1866		2293
1867	$self->activate_recursive;	2294	$self->deactivate_recursive;
1868		2295
1869	return if UNIVERSAL::isa $self->map, "ext::map_link";	2296	return if UNIVERSAL::isa $self->map, "ext::map_link";
1870		2297
1871	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2298	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1872	if $self->map;	2299	if $self->map && $self->map->{path} ne "{link}";
1873		2300
1874	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2301	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1875	}	2302	}
1876		2303
1877	sub cf::object::player::leave_link {	2304	sub cf::object::player::leave_link {
1878	my ($self, $map, $x, $y) = @_;	2305	my ($self, $map, $x, $y) = @_;
		2306
		2307	return unless $self->contr->active;
1879		2308
1880	my $link_pos = delete $self->{_link_pos};	2309	my $link_pos = delete $self->{_link_pos};
1881		2310
1882	unless ($map) {	2311	unless ($map) {
1883	# restore original map position	2312	# restore original map position
…		…
1906		2335
1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2336	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1908	$self->enter_map ($map, $x, $y);	2337	$self->enter_map ($map, $x, $y);
1909	}	2338	}
1910		2339
1911	cf::player->attach (	2340	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1912	on_logout => sub {
1913	my ($pl) = @_;
1914		2341
1915	# abort map switching before logout	2342	Moves the player to the given map-path and coordinates by first freezing
1916	if ($pl->ob->{_link_pos}) {	2343	her, loading and preparing them map, calling the provided $check callback
1917	cf::sync_job {	2344	that has to return the map if sucecssful, and then unfreezes the player on
1918	$pl->ob->leave_link	2345	the new (success) or old (failed) map position. In either case, $done will
1919	};	2346	be called at the end of this process.
1920	}
1921	},
1922	on_login => sub {
1923	my ($pl) = @_;
1924		2347
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	2348	=cut
		2349
		2350	our $GOTOGEN;
1946		2351
1947	sub cf::object::player::goto {	2352	sub cf::object::player::goto {
1948	my ($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;
1949		2357
1950	$self->enter_link;	2358	$self->enter_link;
1951		2359
1952	(async {	2360	(async {
1953	my $map = eval {	2361	my $map = eval {
1954	my $map = cf::map::find $path;	2362	my $map = cf::map::find $path;
		2363
		2364	if ($map) {
1955	$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
1956	$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 $@;
1957	} or	2377	}
1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1959		2378
		2379	if ($gen == $self->{_goto_generation}) {
		2380	delete $self->{_goto_generation};
1960	$self->leave_link ($map, $x, $y);	2381	$self->leave_link ($map, $x, $y);
		2382	}
		2383
		2384	$done->() if $done;
1961	})->prio (1);	2385	})->prio (1);
1962	}	2386	}
1963		2387
1964	=item $player_object->enter_exit ($exit_object)	2388	=item $player_object->enter_exit ($exit_object)
1965		2389
…		…
2034	my $hp = $exit->stats->hp;	2458	my $hp = $exit->stats->hp;
2035	my $sp = $exit->stats->sp;	2459	my $sp = $exit->stats->sp;
2036		2460
2037	$self->enter_link;	2461	$self->enter_link;
2038		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
2039	(async {	2467	(async {
2040	$self->deactivate_recursive; # just to be sure	2468	$self->deactivate_recursive; # just to be sure
2041	unless (eval {	2469	unless (eval {
2042	$self->goto ($slaying, $hp, $sp);	2470	$self->goto ($slaying, $hp, $sp);
2043		2471
…		…
2070		2498
2071	utf8::encode $text;	2499	utf8::encode $text;
2072	$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);
2073	}	2501	}
2074		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
2075	=item $client->ext_event ($type, %msg)	2555	=item $client->ext_msg ($type, @msg)
2076		2556
2077	Sends an exti event to the client.	2557	Sends an ext event to the client.
2078		2558
2079	=cut	2559	=cut
2080		2560
2081	sub cf::client::ext_event($$%) {	2561	sub cf::client::ext_msg($$@) {
2082	my ($self, $type, %msg) = @_;	2562	my ($self, $type, @msg) = @_;
2083		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
2084	$msg{msgtype} = "event_$type";	2569	push @msg, msgtype => "event_$type";
2085	$self->send_packet ("ext " . cf::to_json \%msg);	2570	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2571	}
2086	}	2572	}
2087		2573
2088	=item $success = $client->query ($flags, "text", \&cb)	2574	=item $success = $client->query ($flags, "text", \&cb)
2089		2575
2090	Queues a query to the client, calling the given callback with	2576	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>,	2577	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>.	2578	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2093		2579
2094	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
2095	reliable at some point in the future.	2581	become reliable at some point in the future.
2096		2582
2097	=cut	2583	=cut
2098		2584
2099	sub cf::client::query {	2585	sub cf::client::query {
2100	my ($self, $flags, $text, $cb) = @_;	2586	my ($self, $flags, $text, $cb) = @_;
…		…
2108	utf8::encode $text;	2594	utf8::encode $text;
2109	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2110		2596
2111	$self->send_packet ($self->{query_queue}[0][0])	2597	$self->send_packet ($self->{query_queue}[0][0])
2112	if @{ $self->{query_queue} } == 1;	2598	if @{ $self->{query_queue} } == 1;
		2599
		2600	1
2113	}	2601	}
2114		2602
2115	cf::client->attach (	2603	cf::client->attach (
		2604	on_connect => sub {
		2605	my ($ns) = @_;
		2606
		2607	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2608	},
2116	on_reply => sub {	2609	on_reply => sub {
2117	my ($ns, $msg) = @_;	2610	my ($ns, $msg) = @_;
2118		2611
2119	# this weird shuffling is so that direct followup queries	2612	# this weird shuffling is so that direct followup queries
2120	# get handled first	2613	# get handled first
…		…
2132	} else {	2625	} else {
2133	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2626	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2134	}	2627	}
2135	}	2628	}
2136	},	2629	},
		2630	on_exticmd => sub {
		2631	my ($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	},
2137	);	2653	);
2138		2654
2139	=item $client->async (\&cb)	2655	=item $client->async (\&cb)
2140		2656
2141	Create a new coroutine, running the specified callback. The coroutine will	2657	Create a new coroutine, running the specified callback. The coroutine will
…		…
2190		2706
2191	=pod	2707	=pod
2192		2708
2193	The following functions and methods are available within a safe environment:	2709	The following functions and methods are available within a safe environment:
2194		2710
2195	cf::object contr pay_amount pay_player map	2711	cf::object
		2712	contr pay_amount pay_player map x y force_find force_add
		2713	insert remove
		2714
2196	cf::object::player player	2715	cf::object::player
2197	cf::player peaceful	2716	player
2198	cf::map trigger	2717
		2718	cf::player
		2719	peaceful
		2720
		2721	cf::map
		2722	trigger
2199		2723
2200	=cut	2724	=cut
2201		2725
2202	for (	2726	for (
2203	["cf::object" => qw(contr pay_amount pay_player map)],	2727	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2728	insert remove)],
2204	["cf::object::player" => qw(player)],	2729	["cf::object::player" => qw(player)],
2205	["cf::player" => qw(peaceful)],	2730	["cf::player" => qw(peaceful)],
2206	["cf::map" => qw(trigger)],	2731	["cf::map" => qw(trigger)],
2207	) {	2732	) {
2208	no strict 'refs';	2733	no strict 'refs';
…		…
2279	=back	2804	=back
2280		2805
2281	=cut	2806	=cut
2282		2807
2283	#############################################################################	2808	#############################################################################
2284
2285	=head2 EXTENSION DATABASE SUPPORT
2286
2287	Crossfire maintains a very simple database for extension use. It can
2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2289	convert to/from binary).
2290
2291	The parameter C<$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	2809	# the server's init and main functions
2458		2810
2459	sub load_facedata($) {	2811	sub load_facedata($) {
2460	my ($path) = @_;	2812	my ($path) = @_;
2461		2813
…		…
2473	{	2825	{
2474	my $faces = $facedata->{faceinfo};	2826	my $faces = $facedata->{faceinfo};
2475		2827
2476	while (my ($face, $info) = each %$faces) {	2828	while (my ($face, $info) = each %$faces) {
2477	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2829	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2478	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2830	cf::face::set_visibility $idx, $info->{visibility};
		2831	cf::face::set_magicmap $idx, $info->{magicmap};
2479	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2832	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2480	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2833	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2481	Coro::cede;	2834
		2835	cf::cede_to_tick;
2482	}	2836	}
2483		2837
2484	while (my ($face, $info) = each %$faces) {	2838	while (my ($face, $info) = each %$faces) {
2485	next unless $info->{smooth};	2839	next unless $info->{smooth};
2486	my $idx = cf::face::find $face	2840	my $idx = cf::face::find $face
2487	or next;	2841	or next;
2488	if (my $smooth = cf::face::find $info->{smooth}) {	2842	if (my $smooth = cf::face::find $info->{smooth}) {
		2843	cf::face::set_smooth $idx, $smooth;
2489	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2844	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2490	} else {	2845	} else {
2491	warn "smooth face '$info->{smooth}' not found for face '$face'";	2846	warn "smooth face '$info->{smooth}' not found for face '$face'";
2492	}	2847	}
2493	Coro::cede;	2848
		2849	cf::cede_to_tick;
2494	}	2850	}
2495	}	2851	}
2496		2852
2497	{	2853	{
2498	my $anims = $facedata->{animinfo};	2854	my $anims = $facedata->{animinfo};
2499		2855
2500	while (my ($anim, $info) = each %$anims) {	2856	while (my ($anim, $info) = each %$anims) {
2501	cf::anim::set $anim, $info->{frames}, $info->{facings};	2857	cf::anim::set $anim, $info->{frames}, $info->{facings};
2502	Coro::cede;	2858	cf::cede_to_tick;
2503	}	2859	}
2504		2860
2505	cf::anim::invalidate_all; # d'oh	2861	cf::anim::invalidate_all; # d'oh
2506	}	2862	}
2507		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
2508	1	2895	1
2509	}	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	};
2510		2905
2511	sub reload_regions {	2906	sub reload_regions {
2512	load_resource_file "$MAPDIR/regions"	2907	load_resource_file "$MAPDIR/regions"
2513	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	}
2514	}	2914	}
2515		2915
2516	sub reload_facedata {	2916	sub reload_facedata {
2517	load_facedata "$DATADIR/facedata"	2917	load_facedata "$DATADIR/facedata"
2518	or die "unable to load facedata\n";	2918	or die "unable to load facedata\n";
2519	}	2919	}
2520		2920
2521	sub reload_archetypes {	2921	sub reload_archetypes {
2522	load_resource_file "$DATADIR/archetypes"	2922	load_resource_file "$DATADIR/archetypes"
2523	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";
2524	}	2929	}
2525		2930
2526	sub reload_treasures {	2931	sub reload_treasures {
2527	load_resource_file "$DATADIR/treasures"	2932	load_resource_file "$DATADIR/treasures"
2528	or die "unable to load treasurelists\n";	2933	or die "unable to load treasurelists\n";
…		…
2531	sub reload_resources {	2936	sub reload_resources {
2532	warn "reloading resource files...\n";	2937	warn "reloading resource files...\n";
2533		2938
2534	reload_regions;	2939	reload_regions;
2535	reload_facedata;	2940	reload_facedata;
		2941	#reload_archetypes;#d#
2536	reload_archetypes;	2942	reload_archetypes;
2537	reload_treasures;	2943	reload_treasures;
2538		2944
2539	warn "finished reloading resource files\n";	2945	warn "finished reloading resource files\n";
2540	}	2946	}
…		…
2597	},	3003	},
2598	);	3004	);
2599	}	3005	}
2600	}	3006	}
2601		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
2602	sub emergency_save() {	3046	sub emergency_save() {
2603	my $freeze_guard = cf::freeze_mainloop;	3047	my $freeze_guard = cf::freeze_mainloop;
2604		3048
2605	warn "enter emergency perl save\n";	3049	warn "enter emergency perl save\n";
2606		3050
…		…
2681	%EXT_CORO = ();	3125	%EXT_CORO = ();
2682		3126
2683	warn "removing commands";	3127	warn "removing commands";
2684	%COMMAND = ();	3128	%COMMAND = ();
2685		3129
2686	warn "removing ext commands";	3130	warn "removing ext/exti commands";
2687	%EXTCMD = ();	3131	%EXTCMD = ();
		3132	%EXTICMD = ();
2688		3133
2689	warn "unloading/nuking all extensions";	3134	warn "unloading/nuking all extensions";
2690	for my $pkg (@EXTS) {	3135	for my $pkg (@EXTS) {
2691	warn "... unloading $pkg";	3136	warn "... unloading $pkg";
2692		3137
…		…
2810	my $signal = new Coro::Signal;	3255	my $signal = new Coro::Signal;
2811	push @WAIT_FOR_TICK_BEGIN, $signal;	3256	push @WAIT_FOR_TICK_BEGIN, $signal;
2812	$signal->wait;	3257	$signal->wait;
2813	}	3258	}
2814		3259
		3260	my $min = 1e6;#d#
		3261	my $avg = 10;
2815	$TICK_WATCHER = Event->timer (	3262	$TICK_WATCHER = Event->timer (
2816	reentrant => 0,	3263	reentrant => 0,
2817	parked => 1,	3264	parked => 1,
2818	prio => 0,	3265	prio => 0,
2819	at => $NEXT_TICK || $TICK,	3266	at => $NEXT_TICK || $TICK,
…		…
2823	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"
2824	unless ++$bug_warning > 10;	3271	unless ++$bug_warning > 10;
2825	return;	3272	return;
2826	}	3273	}
2827		3274
2828	$NOW = Event::time;	3275	$NOW = $tick_start = Event::time;
2829		3276
2830	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	};
2831		3301
2832	$RUNTIME += $TICK;	3302	$RUNTIME += $TICK;
2833	$NEXT_TICK += $TICK;	3303	$NEXT_TICK += $TICK;
2834		3304
2835	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3305	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2841	}	3311	}
2842		3312
2843	# my $AFTER = Event::time;	3313	# my $AFTER = Event::time;
2844	# warn $AFTER - $NOW;#d#	3314	# warn $AFTER - $NOW;#d#
2845		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
2846	# 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
2847	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3326	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2848		3327
2849	$TICK_WATCHER->at ($NEXT_TICK);	3328	$TICK_WATCHER->at ($NEXT_TICK);
2850	$TICK_WATCHER->start;	3329	$TICK_WATCHER->start;
2851		3330
2852	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3331	$LOAD = ($NOW - $tick_start) / $TICK;
2853	$sig->send;	3332	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2854	}
2855	while (my $sig = shift @WAIT_FOR_TICK) {
2856	$sig->send;
2857	}
2858		3333
2859	_post_tick;	3334	_post_tick;
		3335
		3336
2860	},	3337	},
2861	);	3338	);
2862		3339
2863	{	3340	{
2864	BDB::max_poll_time $TICK * 0.1;	3341	BDB::max_poll_time $TICK * 0.1;
…		…
2923	prio => 6,	3400	prio => 6,
2924	cb => \&IO::AIO::poll_cb,	3401	cb => \&IO::AIO::poll_cb,
2925	);	3402	);
2926	}	3403	}
2927		3404
		3405	my $_log_backtrace;
		3406
		3407	sub _log_backtrace {
		3408	my ($msg, @addr) = @_;
		3409
		3410	$msg =~ s/\n//;
		3411
		3412	# limit the # of concurrent backtraces
		3413	if ($_log_backtrace < 2) {
		3414	++$_log_backtrace;
		3415	async {
		3416	my @bt = fork_call {
		3417	@addr = map { sprintf "%x", $_ } @addr;
		3418	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3419	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3420	or die "addr2line: $!";
		3421
		3422	my @funcs;
		3423	my @res = <$fh>;
		3424	chomp for @res;
		3425	while (@res) {
		3426	my ($func, $line) = splice @res, 0, 2, ();
		3427	push @funcs, "[$func] $line";
		3428	}
		3429
		3430	@funcs
		3431	};
		3432
		3433	LOG llevInfo, "[ABT] $msg\n";
		3434	LOG llevInfo, "[ABT] $_\n" for @bt;
		3435	--$_log_backtrace;
		3436	};
		3437	} else {
		3438	LOG llevInfo, "[ABT] $msg\n";
		3439	LOG llevInfo, "[ABT] [suppressed]\n";
		3440	}
		3441	}
		3442
2928	# load additional modules	3443	# load additional modules
2929	use cf::pod;	3444	use cf::pod;
2930		3445
2931	END { cf::emergency_save }	3446	END { cf::emergency_save }
2932		3447

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