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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.199 by root, Mon Jan 29 14:46:01 2007 UTC vs.
Revision 1.280 by root, Sat Jun 16 14:35:41 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.5 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
38		51
39	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	53	our %EXTCMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
43		56
		57	our $RELOAD; # number of reloads so far
44	our @EVENT;	58	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		59
47	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	73	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	74	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	76	our $NEXT_TICK;
52	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
53		82
54	our %CFG;	83	our %CFG;
55		84
56	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	86	our $RUNTIME;
58		87
59	our %PLAYER; # all users	88	our %PLAYER; # all users
60	our %MAP; # all maps	89	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	90	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		91
67	# used to convert map paths into valid unix filenames by replacing / by ∕	92	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
		98
70	binmode STDOUT;	99	binmode STDOUT;
71	binmode STDERR;	100	binmode STDERR;
72		101
73	# read virtual server time, if available	102	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
78	}	107	}
79		108
80	mkdir cf::localdir;	109	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		111
86	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
87		113
88	sub cf::map::normalise;	114	sub cf::map::normalise;
89		115
…		…
100	=item $cf::RUNTIME	126	=item $cf::RUNTIME
101		127
102	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
103	every server tick.	129	every server tick.
104		130
105	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
106		134
107	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
108	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
109		139
110	=item $cf::NOW	140	=item $cf::NOW
111		141
112	The time of the last (current) server tick.	142	The time of the last (current) server tick.
113		143
114	=item $cf::TICK	144	=item $cf::TICK
115		145
116	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
117		157
118	=item %cf::CFG	158	=item %cf::CFG
119		159
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
121	from wherever your confdir points to.	161	from wherever your confdir points to.
122		162
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		164
125	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
126	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	166	returns directly I<after> the tick processing (and consequently, can only wake one process
127	processing has been done. Call C<< ->wait >> on them to maximise the	167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
128	window of cpu time available, or simply to synchronise to the server tick.
129		168
130	=back	169	=back
131		170
132	=cut	171	=cut
133		172
134	BEGIN {	173	BEGIN {
135	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
136	my $msg = join "", @_;	175	my $msg = join "", @_;
137	utf8::encode $msg;
138		176
139	$msg .= "\n"	177	$msg .= "\n"
140	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
141		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
142	LOG llevError, $msg;	183	LOG llevError, $msg;
143	};	184	};
144	}	185	}
145		186
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
148	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
149	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
150	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
151	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
152		194
153	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
154	# within the Safe compartment.	196	# within the Safe compartment.
155	for my $pkg (qw(	197	for my $pkg (qw(
156	cf::global cf::attachable	198	cf::global cf::attachable
…		…
192	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
193	$d	235	$d
194	} || "[unable to dump $_[0]: '$@']";	236	} || "[unable to dump $_[0]: '$@']";
195	}	237	}
196		238
197	use JSON::Syck (); # TODO# replace by JSON::PC once working	239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
198		240
199	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
200		242
201	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
202		244
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
211		246
212	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
213
214	=cut
215
216	sub to_json($) {
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
218	JSON::Syck::Dump $_[0]
219	}
220		248
221	=item cf::lock_wait $string	249	=item cf::lock_wait $string
222		250
223	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
224		252
…		…
230	returned.	258	returned.
231		259
232	Lock names should begin with a unique identifier (for example, cf::map::find	260	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
234		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
235	=cut	267	=cut
236		268
237	our %LOCK;	269	our %LOCK;
238		270
239	sub lock_wait($) {	271	sub lock_wait($) {
…		…
258	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
260	}	292	}
261	}	293	}
262		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
263	sub freeze_mainloop {	301	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
265		303
266	my $guard = Coro::guard {	304	my $guard = Coro::guard {
267	$TICK_WATCHER->start;	305	$TICK_WATCHER->start;
268	$WRITE_RUNTIME_WATCHER->start;
269	};	306	};
270	$WRITE_RUNTIME_WATCHER->stop;
271	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
272	$guard	308	$guard
273	}	309	}
274		310
275	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
297		333
298	sub sync_job(&) {	334	sub sync_job(&) {
299	my ($job) = @_;	335	my ($job) = @_;
300		336
301	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
302	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
304		342
305	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
317		355
318	while ($busy) {	356	while ($busy) {
319	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
320	}	358	}
321		359
		360	$time = Event::time - $time;
		361
		362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		364
		365	$tick_start += $time; # do not account sync jobs to server load
		366
322	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
323	} else {	368	} else {
324	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
325		370
326	$job->()	371	$job->()
…		…
346		391
347	$coro	392	$coro
348	}	393	}
349		394
350	sub write_runtime {	395	sub write_runtime {
351	my $runtime = cf::localdir . "/runtime";	396	my $runtime = "$LOCALDIR/runtime";
		397
		398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
		403	my $guard = cf::lock_acquire "write_runtime";
352		404
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
354	or return;	406	or return;
355		407
356	my $value = $cf::RUNTIME + 90 + 10;	408	my $value = $cf::RUNTIME + 90 + 10;
…		…
358	# 60 allows for the watchdog to kill the server.	410	# 60 allows for the watchdog to kill the server.
359		411
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
361	and return;	413	and return;
362		414
		415	# always fsync - this file is important
363	aio_fsync $fh	416	aio_fsync $fh
364	and return;	417	and return;
365		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
366	close $fh	422	close $fh
367	or return;	423	or return;
368		424
369	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
370	and return;	426	and return;
371		427
		428	warn "runtime file written.\n";
		429
372	1	430	1
		431	}
		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373	}	442	}
374		443
375	=back	444	=back
376		445
377	=cut	446	=cut
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
558		627
559	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		632
564	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	634	my $pkg = shift @arg;
566		635
567	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
596	_attach $registry, $klass, @attach;	665	_attach $registry, $klass, @attach;
597	}	666	}
598		667
599	$obj->{$name} = \%arg;	668	$obj->{$name} = \%arg;
600	} else {	669	} else {
601	warn "object uses attachment '$name' that is not available, postponing.\n";	670	warn "object uses attachment '$name' which is not available, postponing.\n";
602	}	671	}
603		672
604	$obj->{_attachment}{$name} = undef;	673	$obj->{_attachment}{$name} = undef;
605	}	674	}
606		675
…		…
608	if (ref $_[0]) {	677	if (ref $_[0]) {
609	_object_attach @_;	678	_object_attach @_;
610	} else {	679	} else {
611	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
612	}	681	}
		682	_recalc_want;
613	};	683	};
614		684
615	# all those should be optimised	685	# all those should be optimised
616	sub cf::attachable::detach {	686	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
621	reattach ($obj);	691	reattach ($obj);
622	} else {	692	} else {
623	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
624	}	694	}
		695	_recalc_want;
625	};	696	};
626		697
627	sub cf::attachable::attached {	698	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
629		700
…		…
752	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
753		824
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	829	close $fh;
759		830
760	if (@$objs) {	831	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	837	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
768	}	839	}
769	} else {	840	} else {
770	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
802	or return;	873	or return;
803	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
804	}	875	}
805		876
806	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
807	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
808	return ($data, $av);	879	return ($data, $av);
809	}	880	}
810		881
811	#############################################################################	882	#############################################################################
812	# command handling &c	883	# command handling &c
…		…
872		943
873	cf::override;	944	cf::override;
874	},	945	},
875	);	946	);
876		947
877	sub load_extension {
878	my ($path) = @_;
879
880	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
881	my $base = $1;
882	my $pkg = $1;
883	$pkg =~ s/[^[:word:]]/_/g;
884	$pkg = "ext::$pkg";
885
886	warn "... loading '$path' into '$pkg'\n";
887
888	open my $fh, "<:utf8", $path
889	or die "$path: $!";
890
891	my $source =
892	"package $pkg; use strict; use utf8;\n"
893	. "#line 1 \"$path\"\n{\n"
894	. (do { local $/; <$fh> })
895	. "\n};\n1";
896
897	unless (eval $source) {
898	my $msg = $@ ? "$path: $@\n"
899	: "extension disabled.\n";
900	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
901	warn $@;
902	warn "mandatory extension failed to load, exiting.\n";
903	exit 1;
904	}
905	die $@;
906	}
907
908	push @EXTS, $pkg;
909	}
910
911	sub load_extensions {	948	sub load_extensions {
		949	cf::sync_job {
		950	my %todo;
		951
912	for my $ext (<$LIBDIR/*.ext>) {	952	for my $path (<$LIBDIR/*.ext>) {
913	next unless -r $ext;	953	next unless -r $path;
914	eval {	954
915	load_extension $ext;	955	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		956	my $base = $1;
		957	my $pkg = $1;
		958	$pkg =~ s/[^[:word:]]/_/g;
		959	$pkg = "ext::$pkg";
		960
		961	open my $fh, "<:utf8", $path
		962	or die "$path: $!";
		963
		964	my $source = do { local $/; <$fh> };
		965
		966	my %ext = (
		967	path => $path,
		968	base => $base,
		969	pkg => $pkg,
		970	);
		971
		972	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		973	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		974
		975	$ext{source} =
		976	"package $pkg; use strict; use utf8;\n"
		977	. "#line 1 \"$path\"\n{\n"
		978	. $source
		979	. "\n};\n1";
		980
		981	$todo{$base} = \%ext;
		982	}
		983
		984	my %done;
		985	while (%todo) {
		986	my $progress;
		987
		988	while (my ($k, $v) = each %todo) {
		989	for (split /,\s*/, $v->{meta}{depends}) {
		990	goto skip
		991	unless exists $done{$_};
		992	}
		993
		994	warn "... loading '$k' into '$v->{pkg}'\n";
		995
		996	unless (eval $v->{source}) {
		997	my $msg = $@ ? "$v->{path}: $@\n"
		998	: "$v->{base}: extension inactive.\n";
		999
		1000	if (exists $v->{meta}{mandatory}) {
		1001	warn $msg;
		1002	warn "mandatory extension failed to load, exiting.\n";
		1003	exit 1;
		1004	}
		1005
		1006	warn $msg;
		1007	}
		1008
		1009	$done{$k} = delete $todo{$k};
		1010	push @EXTS, $v->{pkg};
		1011	$progress = 1;
916	1	1012	}
917	} or warn "$ext not loaded: $@";	1013
		1014	skip:
		1015	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1016	unless $progress;
		1017	}
918	}	1018	};
919	}	1019	}
920		1020
921	#############################################################################	1021	#############################################################################
922		1022
923	=head2 CORE EXTENSIONS	1023	=head2 CORE EXTENSIONS
…		…
939	Returns the given player object, loading it if necessary (might block).	1039	Returns the given player object, loading it if necessary (might block).
940		1040
941	=cut	1041	=cut
942		1042
943	sub playerdir($) {	1043	sub playerdir($) {
944	cf::localdir	1044	"$PLAYERDIR/"
945	. "/"
946	. cf::playerdir
947	. "/"
948	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1045	. (ref $_[0] ? $_[0]->ob->name : $_[0])
949	}	1046	}
950		1047
951	sub path($) {	1048	sub path($) {
952	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1049	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
953		1050
954	(playerdir $login) . "/$login.pl"	1051	(playerdir $login) . "/playerdata"
955	}	1052	}
956		1053
957	sub find_active($) {	1054	sub find_active($) {
958	$cf::PLAYER{$_[0]}	1055	$cf::PLAYER{$_[0]}
959	and $cf::PLAYER{$_[0]}->active	1056	and $cf::PLAYER{$_[0]}->active
…		…
972	my $login = $_[0];	1069	my $login = $_[0];
973		1070
974	my $guard = cf::lock_acquire "user_find:$login";	1071	my $guard = cf::lock_acquire "user_find:$login";
975		1072
976	$cf::PLAYER{$_[0]} || do {	1073	$cf::PLAYER{$_[0]} || do {
		1074	# rename old playerfiles to new ones
		1075	#TODO: remove when no longer required
		1076	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1077	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1078	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1079	aio_unlink +(playerdir $login) . "/$login.pl";
		1080
977	my $pl = load_pl path $login	1081	my $pl = load_pl path $login
978	or return;	1082	or return;
979	$cf::PLAYER{$login} = $pl	1083	$cf::PLAYER{$login} = $pl
980	}	1084	}
981	}	1085	}
…		…
1018		1122
1019	=cut	1123	=cut
1020		1124
1021	sub quit_character {	1125	sub quit_character {
1022	my ($pl) = @_;	1126	my ($pl) = @_;
		1127
		1128	my $name = $pl->ob->name;
1023		1129
1024	$pl->{deny_save} = 1;	1130	$pl->{deny_save} = 1;
1025	$pl->password ("*"); # this should lock out the player until we nuked the dir	1131	$pl->password ("*"); # this should lock out the player until we nuked the dir
1026		1132
1027	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1133	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1032	my $path = playerdir $pl;	1138	my $path = playerdir $pl;
1033	my $temp = "$path~$cf::RUNTIME~deleting~";	1139	my $temp = "$path~$cf::RUNTIME~deleting~";
1034	aio_rename $path, $temp;	1140	aio_rename $path, $temp;
1035	delete $cf::PLAYER{$pl->ob->name};	1141	delete $cf::PLAYER{$pl->ob->name};
1036	$pl->destroy;	1142	$pl->destroy;
		1143
		1144	my $prefix = qr<^~\Q$name\E/>;
		1145
		1146	# nuke player maps
		1147	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1148
1037	IO::AIO::aio_rmtree $temp;	1149	IO::AIO::aio_rmtree $temp;
		1150	}
		1151
		1152	=item $pl->kick
		1153
		1154	Kicks a player out of the game. This destroys the connection.
		1155
		1156	=cut
		1157
		1158	sub kick {
		1159	my ($pl, $kicker) = @_;
		1160
		1161	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1162	$pl->killer ("kicked");
		1163	$pl->ns->destroy;
1038	}	1164	}
1039		1165
1040	=item cf::player::list_logins	1166	=item cf::player::list_logins
1041		1167
1042	Returns am arrayref of all valid playernames in the system, can take a	1168	Returns am arrayref of all valid playernames in the system, can take a
1043	while and may block, so not sync_job-capable, ever.	1169	while and may block, so not sync_job-capable, ever.
1044		1170
1045	=cut	1171	=cut
1046		1172
1047	sub list_logins {	1173	sub list_logins {
1048	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1174	my $dirs = aio_readdir $PLAYERDIR
1049	or return [];	1175	or return [];
1050		1176
1051	my @logins;	1177	my @logins;
1052		1178
1053	for my $login (@$dirs) {	1179	for my $login (@$dirs) {
…		…
1070	=cut	1196	=cut
1071		1197
1072	sub maps($) {	1198	sub maps($) {
1073	my ($pl) = @_;	1199	my ($pl) = @_;
1074		1200
		1201	$pl = ref $pl ? $pl->ob->name : $pl;
		1202
1075	my $files = aio_readdir playerdir $pl	1203	my $files = aio_readdir playerdir $pl
1076	or return;	1204	or return;
1077		1205
1078	my @paths;	1206	my @paths;
1079		1207
1080	for (@$files) {	1208	for (@$files) {
1081	utf8::decode $_;	1209	utf8::decode $_;
1082	next if /\.(?:pl|pst)$/;	1210	next if /\.(?:pl|pst)$/;
1083	next unless /^$PATH_SEP/o;	1211	next unless /^$PATH_SEP/o;
1084		1212
1085	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;	1213	push @paths, cf::map::normalise "~$pl/$_";
1086	}	1214	}
1087		1215
1088	\@paths	1216	\@paths
1089	}	1217	}
1090		1218
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1219	=item $player->ext_reply ($msgid, %msg)
1092		1220
1093	Sends an ext reply to the player.	1221	Sends an ext reply to the player.
1094		1222
1095	=cut	1223	=cut
1096		1224
1097	sub ext_reply($$$%) {	1225	sub ext_reply($$%) {
1098	my ($self, $id, %msg) = @_;	1226	my ($self, $id, %msg) = @_;
1099		1227
1100	$msg{msgid} = $id;	1228	$msg{msgid} = $id;
1101		1229
1102	$self->send ("ext " . cf::to_json \%msg);	1230	$self->send ("ext " . cf::to_json \%msg);
1103	}	1231	}
1104		1232
1105	package cf;	1233	=item $player->ext_event ($type, %msg)
		1234
		1235	Sends an ext event to the client.
		1236
		1237	=cut
		1238
		1239	sub ext_event($$%) {
		1240	my ($self, $type, %msg) = @_;
		1241
		1242	$self->ns->ext_event ($type, %msg);
		1243	}
		1244
		1245	=head3 cf::region
		1246
		1247	=over 4
		1248
		1249	=cut
		1250
		1251	package cf::region;
		1252
		1253	=item cf::region::find_by_path $path
		1254
		1255	Tries to decuce the probable region for a map knowing only its path.
		1256
		1257	=cut
		1258
		1259	sub find_by_path($) {
		1260	my ($path) = @_;
		1261
		1262	my ($match, $specificity);
		1263
		1264	for my $region (list) {
		1265	if ($region->match && $path =~ $region->match) {
		1266	($match, $specificity) = ($region, $region->specificity)
		1267	if $region->specificity > $specificity;
		1268	}
		1269	}
		1270
		1271	$match
		1272	}
1106		1273
1107	=back	1274	=back
1108
1109		1275
1110	=head3 cf::map	1276	=head3 cf::map
1111		1277
1112	=over 4	1278	=over 4
1113		1279
…		…
1168	my ($self, $merge) = @_;	1334	my ($self, $merge) = @_;
1169		1335
1170	# we have to keep some variables in memory intact	1336	# we have to keep some variables in memory intact
1171	local $self->{path};	1337	local $self->{path};
1172	local $self->{load_path};	1338	local $self->{load_path};
1173	local $self->{deny_save};
1174	local $self->{deny_reset};
1175		1339
1176	$self->SUPER::thawer_merge ($merge);	1340	$self->SUPER::thawer_merge ($merge);
1177	}	1341	}
1178		1342
1179	sub normalise {	1343	sub normalise {
…		…
1251		1415
1252	# the original (read-only) location	1416	# the original (read-only) location
1253	sub load_path {	1417	sub load_path {
1254	my ($self) = @_;	1418	my ($self) = @_;
1255		1419
1256	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1420	"$MAPDIR/$self->{path}.map"
1257	}	1421	}
1258		1422
1259	# the temporary/swap location	1423	# the temporary/swap location
1260	sub save_path {	1424	sub save_path {
1261	my ($self) = @_;	1425	my ($self) = @_;
1262		1426
1263	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1427	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1264	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1428	"$TMPDIR/$path.map"
1265	}	1429	}
1266		1430
1267	# the unique path, undef == no special unique path	1431	# the unique path, undef == no special unique path
1268	sub uniq_path {	1432	sub uniq_path {
1269	my ($self) = @_;	1433	my ($self) = @_;
1270		1434
1271	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1435	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1272	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1436	"$UNIQUEDIR/$path"
1273	}	1437	}
1274		1438
1275	# and all this just because we cannot iterate over	1439	# and all this just because we cannot iterate over
1276	# all maps in C++...	1440	# all maps in C++...
1277	sub change_all_map_light {	1441	sub change_all_map_light {
…		…
1279		1443
1280	$_->change_map_light ($change)	1444	$_->change_map_light ($change)
1281	for grep $_->outdoor, values %cf::MAP;	1445	for grep $_->outdoor, values %cf::MAP;
1282	}	1446	}
1283		1447
		1448	sub decay_objects {
		1449	my ($self) = @_;
		1450
		1451	return if $self->{deny_reset};
		1452
		1453	$self->do_decay_objects;
		1454	}
		1455
1284	sub unlink_save {	1456	sub unlink_save {
1285	my ($self) = @_;	1457	my ($self) = @_;
1286		1458
1287	utf8::encode (my $save = $self->save_path);	1459	utf8::encode (my $save = $self->save_path);
1288	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1460	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1291		1463
1292	sub load_header_from($) {	1464	sub load_header_from($) {
1293	my ($self, $path) = @_;	1465	my ($self, $path) = @_;
1294		1466
1295	utf8::encode $path;	1467	utf8::encode $path;
1296	aio_open $path, O_RDONLY, 0	1468	#aio_open $path, O_RDONLY, 0
1297	or return;	1469	# or return;
1298		1470
1299	$self->_load_header ($path)	1471	$self->_load_header ($path)
1300	or return;	1472	or return;
1301		1473
1302	$self->{load_path} = $path;	1474	$self->{load_path} = $path;
…		…
1344	$self->load_header_orig	1516	$self->load_header_orig
1345	or return;	1517	or return;
1346	$self->prepare_orig;	1518	$self->prepare_orig;
1347	}	1519	}
1348		1520
		1521	$self->{deny_reset} = 1
		1522	if $self->no_reset;
		1523
		1524	$self->default_region (cf::region::find_by_path $self->{path})
		1525	unless $self->default_region;
		1526
1349	1	1527	1
1350	}	1528	}
1351		1529
1352	sub find;	1530	sub find;
1353	sub find {	1531	sub find {
…		…
1365	$map->{last_save} = $cf::RUNTIME;	1543	$map->{last_save} = $cf::RUNTIME;
1366		1544
1367	$map->load_header	1545	$map->load_header
1368	or return;	1546	or return;
1369		1547
1370	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1548	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1371	# doing this can freeze the server in a sync job, obviously	1549	# doing this can freeze the server in a sync job, obviously
1372	#$cf::WAIT_FOR_TICK->wait;	1550	#$cf::WAIT_FOR_TICK->wait;
1373	$map->reset;	1551	$map->reset;
1374	undef $guard;	1552	undef $guard;
1375	return find $path;	1553	return find $path;
…		…
1386	my ($self) = @_;	1564	my ($self) = @_;
1387		1565
1388	local $self->{deny_reset} = 1; # loading can take a long time	1566	local $self->{deny_reset} = 1; # loading can take a long time
1389		1567
1390	my $path = $self->{path};	1568	my $path = $self->{path};
		1569
		1570	{
1391	my $guard = cf::lock_acquire "map_load:$path";	1571	my $guard = cf::lock_acquire "map_load:$path";
1392		1572
1393	return if $self->in_memory != cf::MAP_SWAPPED;	1573	return if $self->in_memory != cf::MAP_SWAPPED;
1394		1574
1395	$self->in_memory (cf::MAP_LOADING);	1575	$self->in_memory (cf::MAP_LOADING);
1396		1576
1397	$self->alloc;	1577	$self->alloc;
1398		1578
1399	$self->pre_load;	1579	$self->pre_load;
1400
1401	$self->_load_objects ($self->{load_path}, 1)
1402	or return;
1403
1404	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1405	if delete $self->{load_original};
1406
1407	if (my $uniq = $self->uniq_path) {
1408	utf8::encode $uniq;
1409	if (aio_open $uniq, O_RDONLY, 0) {
1410	$self->clear_unique_items;
1411	$self->_load_objects ($uniq, 0);
1412	}
1413	}
1414
1415	Coro::cede;
1416
1417	# now do the right thing for maps
1418	$self->link_multipart_objects;
1419
1420	unless ($self->{deny_activate}) {
1421	$self->decay_objects;
1422	$self->fix_auto_apply;
1423	$self->update_buttons;
1424	Coro::cede;	1580	Coro::cede;
1425	$self->set_darkness_map;	1581
		1582	$self->_load_objects ($self->{load_path}, 1)
		1583	or return;
		1584
		1585	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1586	if delete $self->{load_original};
		1587
		1588	if (my $uniq = $self->uniq_path) {
		1589	utf8::encode $uniq;
		1590	if (aio_open $uniq, O_RDONLY, 0) {
		1591	$self->clear_unique_items;
		1592	$self->_load_objects ($uniq, 0);
		1593	}
		1594	}
		1595
		1596	Coro::cede;
		1597	# now do the right thing for maps
		1598	$self->link_multipart_objects;
1426	$self->difficulty ($self->estimate_difficulty)	1599	$self->difficulty ($self->estimate_difficulty)
1427	unless $self->difficulty;	1600	unless $self->difficulty;
1428	Coro::cede;	1601	Coro::cede;
		1602
		1603	unless ($self->{deny_activate}) {
		1604	$self->decay_objects;
		1605	$self->fix_auto_apply;
		1606	$self->update_buttons;
		1607	Coro::cede;
		1608	$self->set_darkness_map;
		1609	Coro::cede;
1429	$self->activate;	1610	$self->activate;
		1611	}
		1612
		1613	$self->in_memory (cf::MAP_IN_MEMORY);
1430	}	1614	}
1431		1615
1432	$self->post_load;	1616	$self->post_load;
1433
1434	$self->in_memory (cf::MAP_IN_MEMORY);
1435	}	1617	}
1436		1618
1437	sub customise_for {	1619	sub customise_for {
1438	my ($self, $ob) = @_;	1620	my ($self, $ob) = @_;
1439		1621
1440	return find "~" . $ob->name . "/" . $self->{path}	1622	return find "~" . $ob->name . "/" . $self->{path}
1441	if $self->per_player;	1623	if $self->per_player;
		1624
		1625	# return find "?party/" . $ob->name . "/" . $self->{path}
		1626	# if $self->per_party;
1442		1627
1443	$self	1628	$self
1444	}	1629	}
1445		1630
1446	# find and load all maps in the 3x3 area around a map	1631	# find and load all maps in the 3x3 area around a map
…		…
1557		1742
1558	sub reset_at {	1743	sub reset_at {
1559	my ($self) = @_;	1744	my ($self) = @_;
1560		1745
1561	# TODO: safety, remove and allow resettable per-player maps	1746	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->isa ("ext::map_per_player");#d#
1563	return 1e99 if $self->{deny_reset};	1747	return 1e99 if $self->{deny_reset};
1564		1748
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1749	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1750	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		1751
…		…
1578	my ($self) = @_;	1762	my ($self) = @_;
1579		1763
1580	my $lock = cf::lock_acquire "map_data:$self->{path}";	1764	my $lock = cf::lock_acquire "map_data:$self->{path}";
1581		1765
1582	return if $self->players;	1766	return if $self->players;
1583	return if $self->isa ("ext::map_per_player");#d#
1584		1767
1585	warn "resetting map ", $self->path;#d#	1768	warn "resetting map ", $self->path;
		1769
		1770	$self->in_memory (cf::MAP_SWAPPED);
		1771
		1772	# need to save uniques path
		1773	unless ($self->{deny_save}) {
		1774	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1775
		1776	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1777	if $uniq;
		1778	}
1586		1779
1587	delete $cf::MAP{$self->path};	1780	delete $cf::MAP{$self->path};
1588		1781
1589	$self->in_memory (cf::MAP_SWAPPED);
1590	$self->clear;	1782	$self->clear;
1591		1783
1592	$_->clear_links_to ($self) for values %cf::MAP;	1784	$_->clear_links_to ($self) for values %cf::MAP;
1593		1785
1594	$self->unlink_save;	1786	$self->unlink_save;
…		…
1613	$cf::MAP{$self->path} = $self;	1805	$cf::MAP{$self->path} = $self;
1614		1806
1615	$self->reset; # polite request, might not happen	1807	$self->reset; # polite request, might not happen
1616	}	1808	}
1617		1809
		1810	=item $maps = cf::map::tmp_maps
		1811
		1812	Returns an arrayref with all map paths of currently instantiated and saved
		1813	maps. May block.
		1814
		1815	=cut
		1816
		1817	sub tmp_maps() {
		1818	[
		1819	map {
		1820	utf8::decode $_;
		1821	/\.map$/
		1822	? normalise $_
		1823	: ()
		1824	} @{ aio_readdir $TMPDIR or [] }
		1825	]
		1826	}
		1827
		1828	=item $maps = cf::map::random_maps
		1829
		1830	Returns an arrayref with all map paths of currently instantiated and saved
		1831	random maps. May block.
		1832
		1833	=cut
		1834
		1835	sub random_maps() {
		1836	[
		1837	map {
		1838	utf8::decode $_;
		1839	/\.map$/
		1840	? normalise "?random/$_"
		1841	: ()
		1842	} @{ aio_readdir $RANDOMDIR or [] }
		1843	]
		1844	}
		1845
1618	=item cf::map::unique_maps	1846	=item cf::map::unique_maps
1619		1847
1620	Returns an arrayref of paths of all shared maps that have	1848	Returns an arrayref of paths of all shared maps that have
1621	instantiated unique items. May block.	1849	instantiated unique items. May block.
1622		1850
1623	=cut	1851	=cut
1624		1852
1625	sub unique_maps() {	1853	sub unique_maps() {
1626	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1854	[
1627	or return;	1855	map {
1628
1629	my @paths;
1630
1631	for (@$files) {
1632	utf8::decode $_;	1856	utf8::decode $_;
1633	next if /\.pst$/;	1857	/\.map$/
1634	next unless /^$PATH_SEP/o;	1858	? normalise $_
1635		1859	: ()
1636	push @paths, cf::map::normalise $_;	1860	} @{ aio_readdir $UNIQUEDIR or [] }
1637	}	1861	]
1638
1639	\@paths
1640	}	1862	}
1641		1863
1642	package cf;	1864	package cf;
1643		1865
1644	=back	1866	=back
…		…
1750	$self->deactivate_recursive;	1972	$self->deactivate_recursive;
1751		1973
1752	return if UNIVERSAL::isa $self->map, "ext::map_link";	1974	return if UNIVERSAL::isa $self->map, "ext::map_link";
1753		1975
1754	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1976	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1755	if $self->map;	1977	if $self->map && $self->map->{path} ne "{link}";
1756		1978
1757	$self->enter_map ($LINK_MAP || link_map, 10, 10);	1979	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1758	}	1980	}
1759		1981
1760	sub cf::object::player::leave_link {	1982	sub cf::object::player::leave_link {
1761	my ($self, $map, $x, $y) = @_;	1983	my ($self, $map, $x, $y) = @_;
		1984
		1985	return unless $self->contr->active;
1762		1986
1763	my $link_pos = delete $self->{_link_pos};	1987	my $link_pos = delete $self->{_link_pos};
1764		1988
1765	unless ($map) {	1989	unless ($map) {
1766	# restore original map position	1990	# restore original map position
…		…
1784	$map->load;	2008	$map->load;
1785	$map->load_diag;	2009	$map->load_diag;
1786		2010
1787	return unless $self->contr->active;	2011	return unless $self->contr->active;
1788	$self->activate_recursive;	2012	$self->activate_recursive;
		2013
		2014	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1789	$self->enter_map ($map, $x, $y);	2015	$self->enter_map ($map, $x, $y);
1790	}	2016	}
1791		2017
1792	cf::player->attach (
1793	on_logout => sub {
1794	my ($pl) = @_;
1795
1796	# abort map switching before logout
1797	if ($pl->ob->{_link_pos}) {
1798	cf::sync_job {
1799	$pl->ob->leave_link
1800	};
1801	}
1802	},
1803	on_login => sub {
1804	my ($pl) = @_;
1805
1806	# try to abort aborted map switching on player login :)
1807	# should happen only on crashes
1808	if ($pl->ob->{_link_pos}) {
1809	$pl->ob->enter_link;
1810	(async {
1811	# we need this sleep as the login has a concurrent enter_exit running
1812	# and this sleep increases chances of the player not ending up in scorn
1813	$pl->ob->reply (undef,
1814	"There was an internal problem at your last logout, "
1815	. "the server will try to bring you to your intended destination in a second.",
1816	cf::NDI_RED);
1817	Coro::Timer::sleep 1;
1818	$pl->ob->leave_link;
1819	})->prio (2);
1820	}
1821	},
1822	);
1823
1824	=item $player_object->goto ($path, $x, $y)	2018	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1825		2019
		2020	Moves the player to the given map-path and coordinates by first freezing
		2021	her, loading and preparing them map, calling the provided $check callback
		2022	that has to return the map if sucecssful, and then unfreezes the player on
		2023	the new (success) or old (failed) map position.
		2024
1826	=cut	2025	=cut
		2026
		2027	our $GOTOGEN;
1827		2028
1828	sub cf::object::player::goto {	2029	sub cf::object::player::goto {
1829	my ($self, $path, $x, $y) = @_;	2030	my ($self, $path, $x, $y, $check) = @_;
		2031
		2032	# do generation counting so two concurrent goto's will be executed in-order
		2033	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1830		2034
1831	$self->enter_link;	2035	$self->enter_link;
1832		2036
1833	(async {	2037	(async {
1834	my $map = eval {	2038	my $map = eval {
1835	my $map = cf::map::find $path;	2039	my $map = cf::map::find $path;
		2040
		2041	if ($map) {
1836	$map = $map->customise_for ($self) if $map;	2042	$map = $map->customise_for ($self);
		2043	$map = $check->($map) if $check && $map;
		2044	} else {
		2045	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2046	}
		2047
1837	$map	2048	$map
		2049	};
		2050
		2051	if ($@) {
		2052	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2053	LOG llevError | logBacktrace, Carp::longmess $@;
1838	} or	2054	}
1839	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1840		2055
		2056	if ($gen == $self->{_goto_generation}) {
		2057	delete $self->{_goto_generation};
1841	$self->leave_link ($map, $x, $y);	2058	$self->leave_link ($map, $x, $y);
		2059	}
1842	})->prio (1);	2060	})->prio (1);
1843	}	2061	}
1844		2062
1845	=item $player_object->enter_exit ($exit_object)	2063	=item $player_object->enter_exit ($exit_object)
1846		2064
…		…
1885		2103
1886	$rmp->{random_seed} ||= $exit->random_seed;	2104	$rmp->{random_seed} ||= $exit->random_seed;
1887		2105
1888	my $data = cf::to_json $rmp;	2106	my $data = cf::to_json $rmp;
1889	my $md5 = Digest::MD5::md5_hex $data;	2107	my $md5 = Digest::MD5::md5_hex $data;
1890	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2108	my $meta = "$RANDOMDIR/$md5.meta";
1891		2109
1892	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2110	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1893	aio_write $fh, 0, (length $data), $data, 0;	2111	aio_write $fh, 0, (length $data), $data, 0;
1894	undef $fh;	2112	undef $fh;
1895	aio_rename "$meta~", $meta;	2113	aio_rename "$meta~", $meta;
…		…
1904		2122
1905	return unless $self->type == cf::PLAYER;	2123	return unless $self->type == cf::PLAYER;
1906		2124
1907	if ($exit->slaying eq "/!") {	2125	if ($exit->slaying eq "/!") {
1908	#TODO: this should de-fi-ni-te-ly not be a sync-job	2126	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2127	# the problem is that $exit might not survive long enough
		2128	# so it needs to be done right now, right here
1909	cf::sync_job { prepare_random_map $exit };	2129	cf::sync_job { prepare_random_map $exit };
1910	}	2130	}
1911		2131
1912	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2132	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1913	my $hp = $exit->stats->hp;	2133	my $hp = $exit->stats->hp;
…		…
1921	$self->goto ($slaying, $hp, $sp);	2141	$self->goto ($slaying, $hp, $sp);
1922		2142
1923	1;	2143	1;
1924	}) {	2144	}) {
1925	$self->message ("Something went wrong deep within the crossfire server. "	2145	$self->message ("Something went wrong deep within the crossfire server. "
1926	. "I'll try to bring you back to the map you were before. "	2146	. "I'll try to bring you back to the map you were before. "
1927	. "Please report this to the dungeon master!",	2147	. "Please report this to the dungeon master!",
1928	cf::NDI_UNIQUE | cf::NDI_RED);	2148	cf::NDI_UNIQUE | cf::NDI_RED);
1929		2149
1930	warn "ERROR in enter_exit: $@";	2150	warn "ERROR in enter_exit: $@";
1931	$self->leave_link;	2151	$self->leave_link;
1932	}	2152	}
1933	})->prio (1);	2153	})->prio (1);
…		…
1946		2166
1947	sub cf::client::send_drawinfo {	2167	sub cf::client::send_drawinfo {
1948	my ($self, $text, $flags) = @_;	2168	my ($self, $text, $flags) = @_;
1949		2169
1950	utf8::encode $text;	2170	utf8::encode $text;
1951	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2171	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1952	}	2172	}
1953		2173
		2174	=item $client->ext_event ($type, %msg)
		2175
		2176	Sends an exti event to the client.
		2177
		2178	=cut
		2179
		2180	sub cf::client::ext_event($$%) {
		2181	my ($self, $type, %msg) = @_;
		2182
		2183	$msg{msgtype} = "event_$type";
		2184	$self->send_packet ("ext " . cf::to_json \%msg);
		2185	}
1954		2186
1955	=item $success = $client->query ($flags, "text", \&cb)	2187	=item $success = $client->query ($flags, "text", \&cb)
1956		2188
1957	Queues a query to the client, calling the given callback with	2189	Queues a query to the client, calling the given callback with
1958	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2190	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1987	# get handled first	2219	# get handled first
1988	my $queue = delete $ns->{query_queue}	2220	my $queue = delete $ns->{query_queue}
1989	or return; # be conservative, not sure how that can happen, but we saw a crash here	2221	or return; # be conservative, not sure how that can happen, but we saw a crash here
1990		2222
1991	(shift @$queue)->[1]->($msg);	2223	(shift @$queue)->[1]->($msg);
		2224	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1992		2225
1993	push @{ $ns->{query_queue} }, @$queue;	2226	push @{ $ns->{query_queue} }, @$queue;
1994		2227
1995	if (@{ $ns->{query_queue} } == @$queue) {	2228	if (@{ $ns->{query_queue} } == @$queue) {
1996	if (@$queue) {	2229	if (@$queue) {
…		…
2054		2287
2055	# here we export the classes and methods available to script code	2288	# here we export the classes and methods available to script code
2056		2289
2057	=pod	2290	=pod
2058		2291
2059	The following fucntions and emthods are available within a safe environment:	2292	The following functions and methods are available within a safe environment:
2060		2293
2061	cf::object contr pay_amount pay_player map	2294	cf::object contr pay_amount pay_player map
2062	cf::object::player player	2295	cf::object::player player
2063	cf::player peaceful	2296	cf::player peaceful
2064	cf::map trigger	2297	cf::map trigger
…		…
2149	#############################################################################	2382	#############################################################################
2150		2383
2151	=head2 EXTENSION DATABASE SUPPORT	2384	=head2 EXTENSION DATABASE SUPPORT
2152		2385
2153	Crossfire maintains a very simple database for extension use. It can	2386	Crossfire maintains a very simple database for extension use. It can
2154	currently store anything that can be serialised using Storable, which	2387	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2155	excludes objects.	2388	convert to/from binary).
2156		2389
2157	The parameter C<$family> should best start with the name of the extension	2390	The parameter C<$family> should best start with the name of the extension
2158	using it, it should be unique.	2391	using it, it should be unique.
2159		2392
2160	=over 4	2393	=over 4
2161		2394
2162	=item $hashref = cf::db_get $family
2163
2164	Return a hashref for use by the extension C<$family>, which can be
2165	modified. After modifications, you have to call C<cf::db_dirty> or
2166	C<cf::db_sync>.
2167
2168	=item $value = cf::db_get $family => $key	2395	=item $value = cf::db_get $family => $key
2169		2396
2170	Returns a single value from the database	2397	Returns a single value from the database.
2171
2172	=item cf::db_put $family => $hashref
2173
2174	Stores the given family hashref into the database. Updates are delayed, if
2175	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2176		2398
2177	=item cf::db_put $family => $key => $value	2399	=item cf::db_put $family => $key => $value
2178		2400
2179	Stores the given C<$value> in the family hash. Updates are delayed, if you	2401	Stores the given C<$value> in the family.
2180	want the data to be synced to disk immediately, use C<cf::db_sync>.
2181
2182	=item cf::db_dirty
2183
2184	Marks the database as dirty, to be updated at a later time.
2185
2186	=item cf::db_sync
2187
2188	Immediately write the database to disk I<if it is dirty>.
2189		2402
2190	=cut	2403	=cut
2191		2404
2192	our $DB;	2405	our $DB;
2193		2406
2194	{	2407	sub db_init {
2195	my $path = cf::localdir . "/database.pst";	2408	unless ($DB) {
		2409	$DB = BDB::db_create $DB_ENV;
2196		2410
2197	sub db_load() {	2411	cf::sync_job {
2198	$DB = stat $path ? Storable::retrieve $path : { };	2412	eval {
2199	}	2413	$DB->set_flags (BDB::CHKSUM);
2200		2414
2201	my $pid;	2415	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2202		2416	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2203	sub db_save() {	2417	cf::cleanup "db_open(db): $!" if $!;
2204	waitpid $pid, 0 if $pid;	2418	};
2205	if (0 == ($pid = fork)) {	2419	cf::cleanup "db_open(db): $@" if $@;
2206	$DB->{_meta}{version} = 1;
2207	Storable::nstore $DB, "$path~";
2208	rename "$path~", $path;
2209	cf::_exit 0 if defined $pid;
2210	}	2420	};
2211	}	2421	}
		2422	}
2212		2423
2213	my $dirty;
2214
2215	sub db_sync() {
2216	db_save if $dirty;
2217	undef $dirty;
2218	}
2219
2220	my $idle = Event->idle (
2221	reentrant => 0,
2222	min => 10,
2223	max => 20,
2224	repeat => 0,
2225	data => WF_AUTOCANCEL,
2226	cb => \&db_sync,
2227	);
2228
2229	sub db_dirty() {
2230	$dirty = 1;
2231	$idle->start;
2232	}
2233
2234	sub db_get($;$) {	2424	sub db_get($$) {
2235	@_ >= 2	2425	my $key = "$_[0]/$_[1]";
2236	? $DB->{$_[0]}{$_[1]}
2237	: ($DB->{$_[0]} ||= { })
2238	}
2239		2426
		2427	cf::sync_job {
		2428	BDB::db_get $DB, undef, $key, my $data;
		2429
		2430	$! ? ()
		2431	: $data
		2432	}
		2433	}
		2434
2240	sub db_put($$;$) {	2435	sub db_put($$$) {
2241	if (@_ >= 3) {	2436	BDB::dbreq_pri 4;
2242	$DB->{$_[0]}{$_[1]} = $_[2];	2437	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2243	} else {	2438	}
2244	$DB->{$_[0]} = $_[1];
2245	}
2246	db_dirty;
2247	}
2248		2439
2249	cf::global->attach (	2440	=item cf::cache $id => [$paths...], $processversion => $process
2250	prio => 10000,	2441
2251	on_cleanup => sub {	2442	Generic caching function that returns the value of the resource $id,
2252	db_sync;	2443	caching and regenerating as required.
		2444
		2445	This function can block.
		2446
		2447	=cut
		2448
		2449	sub cache {
		2450	my ($id, $src, $processversion, $process) = @_;
		2451
		2452	my $meta =
		2453	join "\x00",
		2454	$processversion,
		2455	map {
		2456	aio_stat $_
		2457	and Carp::croak "$_: $!";
		2458
		2459	($_, (stat _)[7,9])
		2460	} @$src;
		2461
		2462	my $dbmeta = db_get cache => "$id/meta";
		2463	if ($dbmeta ne $meta) {
		2464	# changed, we may need to process
		2465
		2466	my @data;
		2467	my $md5;
		2468
		2469	for (0 .. $#$src) {
		2470	0 <= aio_load $src->[$_], $data[$_]
		2471	or Carp::croak "$src->[$_]: $!";
2253	},	2472	}
2254	);	2473
		2474	# if processing is expensive, check
		2475	# checksum first
		2476	if (1) {
		2477	$md5 =
		2478	join "\x00",
		2479	$processversion,
		2480	map {
		2481	Coro::cede;
		2482	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2483	} 0.. $#$src;
		2484
		2485
		2486	my $dbmd5 = db_get cache => "$id/md5";
		2487	if ($dbmd5 eq $md5) {
		2488	db_put cache => "$id/meta", $meta;
		2489
		2490	return db_get cache => "$id/data";
		2491	}
		2492	}
		2493
		2494	my $t1 = Time::HiRes::time;
		2495	my $data = $process->(\@data);
		2496	my $t2 = Time::HiRes::time;
		2497
		2498	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2499
		2500	db_put cache => "$id/data", $data;
		2501	db_put cache => "$id/md5" , $md5;
		2502	db_put cache => "$id/meta", $meta;
		2503
		2504	return $data;
		2505	}
		2506
		2507	db_get cache => "$id/data"
		2508	}
		2509
		2510	=item fork_call { }, $args
		2511
		2512	Executes the given code block with the given arguments in a seperate
		2513	process, returning the results. Everything must be serialisable with
		2514	Coro::Storable. May, of course, block. Note that the executed sub may
		2515	never block itself or use any form of Event handling.
		2516
		2517	=cut
		2518
		2519	sub fork_call(&@) {
		2520	my ($cb, @args) = @_;
		2521
		2522	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2523	# or die "socketpair: $!";
		2524	pipe my $fh1, my $fh2
		2525	or die "pipe: $!";
		2526
		2527	if (my $pid = fork) {
		2528	close $fh2;
		2529
		2530	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2531	$res = Coro::Storable::thaw $res;
		2532
		2533	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2534
		2535	die $$res unless "ARRAY" eq ref $res;
		2536
		2537	return wantarray ? @$res : $res->[-1];
		2538	} else {
		2539	reset_signals;
		2540	local $SIG{__WARN__};
		2541	local $SIG{__DIE__};
		2542	eval {
		2543	close $fh1;
		2544
		2545	my @res = eval { $cb->(@args) };
		2546	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2547	};
		2548
		2549	warn $@ if $@;
		2550	_exit 0;
		2551	}
2255	}	2552	}
2256		2553
2257	#############################################################################	2554	#############################################################################
2258	# the server's main()	2555	# the server's init and main functions
		2556
		2557	sub load_facedata($) {
		2558	my ($path) = @_;
		2559
		2560	warn "loading facedata from $path\n";
		2561
		2562	my $facedata;
		2563	0 < aio_load $path, $facedata
		2564	or die "$path: $!";
		2565
		2566	$facedata = Coro::Storable::thaw $facedata;
		2567
		2568	$facedata->{version} == 2
		2569	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2570
		2571	{
		2572	my $faces = $facedata->{faceinfo};
		2573
		2574	while (my ($face, $info) = each %$faces) {
		2575	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2576	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2577	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2578	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2579	Coro::cede;
		2580	}
		2581
		2582	while (my ($face, $info) = each %$faces) {
		2583	next unless $info->{smooth};
		2584	my $idx = cf::face::find $face
		2585	or next;
		2586	if (my $smooth = cf::face::find $info->{smooth}) {
		2587	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2588	} else {
		2589	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2590	}
		2591	Coro::cede;
		2592	}
		2593	}
		2594
		2595	{
		2596	my $anims = $facedata->{animinfo};
		2597
		2598	while (my ($anim, $info) = each %$anims) {
		2599	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2600	Coro::cede;
		2601	}
		2602
		2603	cf::anim::invalidate_all; # d'oh
		2604	}
		2605
		2606	1
		2607	}
		2608
		2609	sub reload_regions {
		2610	load_resource_file "$MAPDIR/regions"
		2611	or die "unable to load regions file\n";
		2612	}
		2613
		2614	sub reload_facedata {
		2615	load_facedata "$DATADIR/facedata"
		2616	or die "unable to load facedata\n";
		2617	}
		2618
		2619	sub reload_archetypes {
		2620	load_resource_file "$DATADIR/archetypes"
		2621	or die "unable to load archetypes\n";
		2622	}
		2623
		2624	sub reload_treasures {
		2625	load_resource_file "$DATADIR/treasures"
		2626	or die "unable to load treasurelists\n";
		2627	}
		2628
		2629	sub reload_resources {
		2630	warn "reloading resource files...\n";
		2631
		2632	reload_regions;
		2633	reload_facedata;
		2634	#reload_archetypes;#d#
		2635	reload_archetypes;
		2636	reload_treasures;
		2637
		2638	warn "finished reloading resource files\n";
		2639	}
		2640
		2641	sub init {
		2642	reload_resources;
		2643	}
2259		2644
2260	sub cfg_load {	2645	sub cfg_load {
2261	open my $fh, "<:utf8", cf::confdir . "/config"	2646	open my $fh, "<:utf8", "$CONFDIR/config"
2262	or return;	2647	or return;
2263		2648
2264	local $/;	2649	local $/;
2265	*CFG = YAML::Syck::Load <$fh>;	2650	*CFG = YAML::Syck::Load <$fh>;
2266		2651
…		…
2286	Event::one_event;	2671	Event::one_event;
2287	})->prio (Coro::PRIO_MAX);	2672	})->prio (Coro::PRIO_MAX);
2288	};	2673	};
2289		2674
2290	cfg_load;	2675	cfg_load;
2291	db_load;	2676	db_init;
2292	load_extensions;	2677	load_extensions;
2293		2678
2294	$TICK_WATCHER->start;	2679	$TICK_WATCHER->start;
2295	Event::loop;	2680	Event::loop;
2296	}	2681	}
…		…
2335	my $map = $cf::MAP{$path} or next;	2720	my $map = $cf::MAP{$path} or next;
2336	$map->valid or next;	2721	$map->valid or next;
2337	$map->save;	2722	$map->save;
2338	}	2723	}
2339	warn "end emergency map save\n";	2724	warn "end emergency map save\n";
		2725
		2726	warn "begin emergency database checkpoint\n";
		2727	BDB::db_env_txn_checkpoint $DB_ENV;
		2728	warn "end emergency database checkpoint\n";
2340	};	2729	};
2341		2730
2342	warn "leave emergency perl save\n";	2731	warn "leave emergency perl save\n";
2343	}	2732	}
2344		2733
		2734	sub post_cleanup {
		2735	my ($make_core) = @_;
		2736
		2737	warn Carp::longmess "post_cleanup backtrace"
		2738	if $make_core;
		2739	}
		2740
2345	sub reload() {	2741	sub do_reload_perl() {
2346	# can/must only be called in main	2742	# can/must only be called in main
2347	if ($Coro::current != $Coro::main) {	2743	if ($Coro::current != $Coro::main) {
2348	warn "can only reload from main coroutine";	2744	warn "can only reload from main coroutine";
2349	return;	2745	return;
2350	}	2746	}
2351		2747
2352	warn "reloading...";	2748	warn "reloading...";
2353		2749
2354	warn "cancelling server ticker";	2750	warn "entering sync_job";
2355	$TICK_WATCHER->cancel;
2356		2751
		2752	cf::sync_job {
		2753	cf::write_runtime; # external watchdog should not bark
2357	cf::emergency_save;	2754	cf::emergency_save;
		2755	cf::write_runtime; # external watchdog should not bark
2358		2756
2359	eval {	2757	warn "syncing database to disk";
		2758	BDB::db_env_txn_checkpoint $DB_ENV;
		2759
2360	# if anything goes wrong in here, we should simply crash as we already saved	2760	# if anything goes wrong in here, we should simply crash as we already saved
2361
2362	warn "syncing database to disk";
2363	cf::db_sync;
2364		2761
2365	warn "cancelling all WF_AUTOCANCEL watchers";	2762	warn "cancelling all WF_AUTOCANCEL watchers";
2366	for (Event::all_watchers) {	2763	for (Event::all_watchers) {
2367	$_->cancel if $_->data & WF_AUTOCANCEL;	2764	$_->cancel if $_->data & WF_AUTOCANCEL;
2368	}	2765	}
2369		2766
2370	warn "flushing outstanding aio requests";	2767	warn "flushing outstanding aio requests";
2371	for (;;) {	2768	for (;;) {
		2769	BDB::flush;
2372	IO::AIO::flush;	2770	IO::AIO::flush;
2373	Coro::cede;	2771	Coro::cede;
2374	last unless IO::AIO::nreqs;	2772	last unless IO::AIO::nreqs || BDB::nreqs;
2375	warn "iterate...";	2773	warn "iterate...";
2376	}	2774	}
		2775
		2776	++$RELOAD;
2377		2777
2378	warn "cancelling all extension coros";	2778	warn "cancelling all extension coros";
2379	$_->cancel for values %EXT_CORO;	2779	$_->cancel for values %EXT_CORO;
2380	%EXT_CORO = ();	2780	%EXT_CORO = ();
2381		2781
…		…
2421	Symbol::delete_package "safe::$_"	2821	Symbol::delete_package "safe::$_"
2422	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2822	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2423		2823
2424	warn "unloading cf.pm \"a bit\"";	2824	warn "unloading cf.pm \"a bit\"";
2425	delete $INC{"cf.pm"};	2825	delete $INC{"cf.pm"};
		2826	delete $INC{"cf/pod.pm"};
2426		2827
2427	# don't, removes xs symbols, too,	2828	# don't, removes xs symbols, too,
2428	# and global variables created in xs	2829	# and global variables created in xs
2429	#Symbol::delete_package __PACKAGE__;	2830	#Symbol::delete_package __PACKAGE__;
2430		2831
…		…
2434	require cf;	2835	require cf;
2435	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2836	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2436		2837
2437	warn "loading config and database again";	2838	warn "loading config and database again";
2438	cf::cfg_load;	2839	cf::cfg_load;
2439	cf::db_load;
2440		2840
2441	warn "loading extensions";	2841	warn "loading extensions";
2442	cf::load_extensions;	2842	cf::load_extensions;
2443		2843
2444	warn "reattaching attachments to objects/players";	2844	warn "reattaching attachments to objects/players";
2445	_global_reattach;	2845	_global_reattach; # objects, sockets
2446	warn "reattaching attachments to maps";	2846	warn "reattaching attachments to maps";
2447	reattach $_ for values %MAP;	2847	reattach $_ for values %MAP;
		2848	warn "reattaching attachments to players";
		2849	reattach $_ for values %PLAYER;
2448		2850
2449	warn "restarting server ticker";	2851	warn "leaving sync_job";
2450		2852
2451	$TICK_WATCHER->start;	2853	1
2452	};	2854	} or do {
2453
2454	if ($@) {
2455	warn $@;	2855	warn $@;
2456	warn "error while reloading, exiting.";	2856	warn "error while reloading, exiting.";
2457	exit 1;	2857	exit 1;
2458	}	2858	};
2459		2859
2460	warn "reloaded";	2860	warn "reloaded";
2461	};	2861	};
2462		2862
2463	our $RELOAD_WATCHER; # used only during reload	2863	our $RELOAD_WATCHER; # used only during reload
2464		2864
		2865	sub reload_perl() {
		2866	# doing reload synchronously and two reloads happen back-to-back,
		2867	# coro crashes during coro_state_free->destroy here.
		2868
		2869	$RELOAD_WATCHER ||= Event->timer (
		2870	reentrant => 0,
		2871	after => 0,
		2872	data => WF_AUTOCANCEL,
		2873	cb => sub {
		2874	do_reload_perl;
		2875	undef $RELOAD_WATCHER;
		2876	},
		2877	);
		2878	}
		2879
2465	register_command "reload" => sub {	2880	register_command "reload" => sub {
2466	my ($who, $arg) = @_;	2881	my ($who, $arg) = @_;
2467		2882
2468	if ($who->flag (FLAG_WIZ)) {	2883	if ($who->flag (FLAG_WIZ)) {
2469	$who->message ("reloading server.");	2884	$who->message ("reloading server.");
2470		2885	async { reload_perl };
2471	# doing reload synchronously and two reloads happen back-to-back,
2472	# coro crashes during coro_state_free->destroy here.
2473
2474	$RELOAD_WATCHER ||= Event->timer (
2475	reentrant => 0,
2476	after => 0,
2477	data => WF_AUTOCANCEL,
2478	cb => sub {
2479	reload;
2480	undef $RELOAD_WATCHER;
2481	},
2482	);
2483	}	2886	}
2484	};	2887	};
2485		2888
2486	unshift @INC, $LIBDIR;	2889	unshift @INC, $LIBDIR;
2487		2890
2488	my $bug_warning = 0;	2891	my $bug_warning = 0;
2489		2892
		2893	our @WAIT_FOR_TICK;
		2894	our @WAIT_FOR_TICK_BEGIN;
		2895
		2896	sub wait_for_tick {
		2897	return unless $TICK_WATCHER->is_active;
		2898	return if $Coro::current == $Coro::main;
		2899
		2900	my $signal = new Coro::Signal;
		2901	push @WAIT_FOR_TICK, $signal;
		2902	$signal->wait;
		2903	}
		2904
		2905	sub wait_for_tick_begin {
		2906	return unless $TICK_WATCHER->is_active;
		2907	return if $Coro::current == $Coro::main;
		2908
		2909	my $signal = new Coro::Signal;
		2910	push @WAIT_FOR_TICK_BEGIN, $signal;
		2911	$signal->wait;
		2912	}
		2913
		2914	my $min = 1e6;#d#
		2915	my $avg = 10;
2490	$TICK_WATCHER = Event->timer (	2916	$TICK_WATCHER = Event->timer (
2491	reentrant => 0,	2917	reentrant => 0,
2492	parked => 1,	2918	parked => 1,
2493	prio => 0,	2919	prio => 0,
2494	at => $NEXT_TICK || $TICK,	2920	at => $NEXT_TICK || $TICK,
…		…
2498	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	2924	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2499	unless ++$bug_warning > 10;	2925	unless ++$bug_warning > 10;
2500	return;	2926	return;
2501	}	2927	}
2502		2928
2503	$NOW = Event::time;	2929	$NOW = $tick_start = Event::time;
2504		2930
2505	cf::server_tick; # one server iteration	2931	cf::server_tick; # one server iteration
		2932
		2933	0 && sync_job {#d#
		2934	for(1..10) {
		2935	my $t = Event::time;
		2936	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2937	or die;
		2938
		2939	$map->width (50);
		2940	$map->height (50);
		2941	$map->alloc;
		2942	$map->_load_objects ("/tmp/x.map", 1);
		2943	my $t = Event::time - $t;
		2944
		2945	#next unless $t < 0.0013;#d#
		2946	if ($t < $min) {
		2947	$min = $t;
		2948	}
		2949	$avg = $avg * 0.99 + $t * 0.01;
		2950	}
		2951	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2952	exit 0;
		2953	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2954	};
		2955
2506	$RUNTIME += $TICK;	2956	$RUNTIME += $TICK;
2507	$NEXT_TICK += $TICK;	2957	$NEXT_TICK += $TICK;
2508		2958
2509	$WAIT_FOR_TICK->broadcast;	2959	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2510	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2960	$NEXT_RUNTIME_WRITE = $NOW + 10;
2511		2961	Coro::async_pool {
2512	Event::sweep;	2962	write_runtime
2513	Coro::cede_notself;	2963	or warn "ERROR: unable to write runtime file: $!";
		2964	};
2514		2965	}
		2966
2515	# my $AFTER = Event::time;	2967	# my $AFTER = Event::time;
2516	# warn $AFTER - $NOW;#d#	2968	# warn $AFTER - $NOW;#d#
2517		2969
		2970	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2971	$sig->send;
		2972	}
		2973	while (my $sig = shift @WAIT_FOR_TICK) {
		2974	$sig->send;
		2975	}
		2976
		2977	$NOW = Event::time;
		2978
2518	# if we are delayed by four ticks or more, skip them all	2979	# if we are delayed by four ticks or more, skip them all
2519	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2980	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2520		2981
2521	$TICK_WATCHER->at ($NEXT_TICK);	2982	$TICK_WATCHER->at ($NEXT_TICK);
2522	$TICK_WATCHER->start;	2983	$TICK_WATCHER->start;
		2984
		2985	$LOAD = ($NOW - $tick_start) / $TICK;
		2986	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2987
		2988	_post_tick;
		2989
		2990
2523	},	2991	},
2524	);	2992	);
2525		2993
		2994	{
		2995	BDB::max_poll_time $TICK * 0.1;
		2996	$BDB_POLL_WATCHER = Event->io (
		2997	reentrant => 0,
		2998	fd => BDB::poll_fileno,
		2999	poll => 'r',
		3000	prio => 0,
		3001	data => WF_AUTOCANCEL,
		3002	cb => \&BDB::poll_cb,
		3003	);
		3004	BDB::min_parallel 8;
		3005
		3006	BDB::set_sync_prepare {
		3007	my $status;
		3008	my $current = $Coro::current;
		3009	(
		3010	sub {
		3011	$status = $!;
		3012	$current->ready; undef $current;
		3013	},
		3014	sub {
		3015	Coro::schedule while defined $current;
		3016	$! = $status;
		3017	},
		3018	)
		3019	};
		3020
		3021	unless ($DB_ENV) {
		3022	$DB_ENV = BDB::db_env_create;
		3023
		3024	cf::sync_job {
		3025	eval {
		3026	BDB::db_env_open
		3027	$DB_ENV,
		3028	$BDBDIR,
		3029	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3030	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3031	0666;
		3032
		3033	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3034
		3035	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3036	$DB_ENV->set_lk_detect;
		3037	};
		3038
		3039	cf::cleanup "db_env_open(db): $@" if $@;
		3040	};
		3041	}
		3042	}
		3043
		3044	{
		3045	IO::AIO::min_parallel 8;
		3046
		3047	undef $Coro::AIO::WATCHER;
2526	IO::AIO::max_poll_time $TICK * 0.1;	3048	IO::AIO::max_poll_time $TICK * 0.1;
2527
2528	undef $Coro::AIO::WATCHER;
2529	$AIO_POLL_WATCHER = Event->io (	3049	$AIO_POLL_WATCHER = Event->io (
2530	reentrant => 0,	3050	reentrant => 0,
		3051	data => WF_AUTOCANCEL,
2531	fd => IO::AIO::poll_fileno,	3052	fd => IO::AIO::poll_fileno,
2532	poll => 'r',	3053	poll => 'r',
2533	prio => 6,	3054	prio => 6,
2534	data => WF_AUTOCANCEL,
2535	cb => \&IO::AIO::poll_cb,	3055	cb => \&IO::AIO::poll_cb,
2536	);	3056	);
		3057	}
2537		3058
2538	$WRITE_RUNTIME_WATCHER = Event->timer (	3059	my $_log_backtrace;
2539	reentrant => 0,	3060
2540	data => WF_AUTOCANCEL,	3061	sub _log_backtrace {
2541	after => 1,	3062	my ($msg, @addr) = @_;
2542	interval => 10,	3063
2543	prio => 6, # keep it lowest so it acts like a watchdog	3064	$msg =~ s/\n//;
2544	cb => Coro::unblock_sub {	3065
2545	write_runtime	3066	# limit the # of concurrent backtraces
2546	or warn "ERROR: unable to write runtime file: $!";	3067	if ($_log_backtrace < 2) {
		3068	++$_log_backtrace;
		3069	async {
		3070	my @bt = fork_call {
		3071	@addr = map { sprintf "%x", $_ } @addr;
		3072	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3073	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3074	or die "addr2line: $!";
		3075
		3076	my @funcs;
		3077	my @res = <$fh>;
		3078	chomp for @res;
		3079	while (@res) {
		3080	my ($func, $line) = splice @res, 0, 2, ();
		3081	push @funcs, "[$func] $line";
		3082	}
		3083
		3084	@funcs
		3085	};
		3086
		3087	LOG llevInfo, "[ABT] $msg\n";
		3088	LOG llevInfo, "[ABT] $_\n" for @bt;
		3089	--$_log_backtrace;
		3090	};
		3091	} else {
		3092	LOG llevInfo, "[ABT] $msg\n";
		3093	LOG llevInfo, "[ABT] [suppressed]\n";
2547	},	3094	}
2548	);	3095	}
		3096
		3097	# load additional modules
		3098	use cf::pod;
2549		3099
2550	END { cf::emergency_save }	3100	END { cf::emergency_save }
2551		3101
2552	1	3102	1
2553		3103

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