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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.200 by root, Mon Jan 29 17:57:22 2007 UTC vs.
Revision 1.279 by root, Mon Jun 11 22:16:53 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) {
…		…
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";
…		…
776	}	847	}
777	} else {	848	} else {
778	aio_unlink $filename;	849	aio_unlink $filename;
779	aio_unlink "$filename.pst";	850	aio_unlink "$filename.pst";
780	}	851	}
781
782	#d##TODO# nuke non .map-files if exist
783	if ($filename =~ s/\.map$//) {
784	aio_unlink $filename;
785	aio_unlink "$filename.pst";
786	}
787	}	852	}
788	}	853	}
789		854
790	sub object_freezer_as_string {	855	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	856	my ($rdata, $objs) = @_;
…		…
797		862
798	sub object_thawer_load {	863	sub object_thawer_load {
799	my ($filename) = @_;	864	my ($filename) = @_;
800		865
801	my ($data, $av);	866	my ($data, $av);
802
803	#d#TODO remove .map if file does not exist
804	aio_stat $filename and $filename =~ s/\.map$//;
805		867
806	(aio_load $filename, $data) >= 0	868	(aio_load $filename, $data) >= 0
807	or return;	869	or return;
808		870
809	unless (aio_stat "$filename.pst") {	871	unless (aio_stat "$filename.pst") {
…		…
811	or return;	873	or return;
812	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
813	}	875	}
814		876
815	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
816	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
817	return ($data, $av);	879	return ($data, $av);
818	}	880	}
819		881
820	#############################################################################	882	#############################################################################
821	# command handling &c	883	# command handling &c
…		…
881		943
882	cf::override;	944	cf::override;
883	},	945	},
884	);	946	);
885		947
886	sub load_extension {
887	my ($path) = @_;
888
889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
890	my $base = $1;
891	my $pkg = $1;
892	$pkg =~ s/[^[:word:]]/_/g;
893	$pkg = "ext::$pkg";
894
895	warn "... loading '$path' into '$pkg'\n";
896
897	open my $fh, "<:utf8", $path
898	or die "$path: $!";
899
900	my $source =
901	"package $pkg; use strict; use utf8;\n"
902	. "#line 1 \"$path\"\n{\n"
903	. (do { local $/; <$fh> })
904	. "\n};\n1";
905
906	unless (eval $source) {
907	my $msg = $@ ? "$path: $@\n"
908	: "extension disabled.\n";
909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
910	warn $@;
911	warn "mandatory extension failed to load, exiting.\n";
912	exit 1;
913	}
914	die $@;
915	}
916
917	push @EXTS, $pkg;
918	}
919
920	sub load_extensions {	948	sub load_extensions {
		949	cf::sync_job {
		950	my %todo;
		951
921	for my $ext (<$LIBDIR/*.ext>) {	952	for my $path (<$LIBDIR/*.ext>) {
922	next unless -r $ext;	953	next unless -r $path;
923	eval {	954
924	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	$progress = 1;
925	1	1012	}
926	} or warn "$ext not loaded: $@";	1013
		1014	skip:
		1015	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1016	unless $progress;
		1017	}
927	}	1018	};
928	}	1019	}
929		1020
930	#############################################################################	1021	#############################################################################
931		1022
932	=head2 CORE EXTENSIONS	1023	=head2 CORE EXTENSIONS
…		…
948	Returns the given player object, loading it if necessary (might block).	1039	Returns the given player object, loading it if necessary (might block).
949		1040
950	=cut	1041	=cut
951		1042
952	sub playerdir($) {	1043	sub playerdir($) {
953	cf::localdir	1044	"$PLAYERDIR/"
954	. "/"
955	. cf::playerdir
956	. "/"
957	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1045	. (ref $_[0] ? $_[0]->ob->name : $_[0])
958	}	1046	}
959		1047
960	sub path($) {	1048	sub path($) {
961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1049	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962		1050
963	(playerdir $login) . "/$login.pl"	1051	(playerdir $login) . "/playerdata"
964	}	1052	}
965		1053
966	sub find_active($) {	1054	sub find_active($) {
967	$cf::PLAYER{$_[0]}	1055	$cf::PLAYER{$_[0]}
968	and $cf::PLAYER{$_[0]}->active	1056	and $cf::PLAYER{$_[0]}->active
…		…
981	my $login = $_[0];	1069	my $login = $_[0];
982		1070
983	my $guard = cf::lock_acquire "user_find:$login";	1071	my $guard = cf::lock_acquire "user_find:$login";
984		1072
985	$cf::PLAYER{$_[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
986	my $pl = load_pl path $login	1081	my $pl = load_pl path $login
987	or return;	1082	or return;
988	$cf::PLAYER{$login} = $pl	1083	$cf::PLAYER{$login} = $pl
989	}	1084	}
990	}	1085	}
…		…
1027		1122
1028	=cut	1123	=cut
1029		1124
1030	sub quit_character {	1125	sub quit_character {
1031	my ($pl) = @_;	1126	my ($pl) = @_;
		1127
		1128	my $name = $pl->ob->name;
1032		1129
1033	$pl->{deny_save} = 1;	1130	$pl->{deny_save} = 1;
1034	$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
1035		1132
1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1133	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1041	my $path = playerdir $pl;	1138	my $path = playerdir $pl;
1042	my $temp = "$path~$cf::RUNTIME~deleting~";	1139	my $temp = "$path~$cf::RUNTIME~deleting~";
1043	aio_rename $path, $temp;	1140	aio_rename $path, $temp;
1044	delete $cf::PLAYER{$pl->ob->name};	1141	delete $cf::PLAYER{$pl->ob->name};
1045	$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
1046	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;
1047	}	1164	}
1048		1165
1049	=item cf::player::list_logins	1166	=item cf::player::list_logins
1050		1167
1051	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
1052	while and may block, so not sync_job-capable, ever.	1169	while and may block, so not sync_job-capable, ever.
1053		1170
1054	=cut	1171	=cut
1055		1172
1056	sub list_logins {	1173	sub list_logins {
1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1174	my $dirs = aio_readdir $PLAYERDIR
1058	or return [];	1175	or return [];
1059		1176
1060	my @logins;	1177	my @logins;
1061		1178
1062	for my $login (@$dirs) {	1179	for my $login (@$dirs) {
…		…
1079	=cut	1196	=cut
1080		1197
1081	sub maps($) {	1198	sub maps($) {
1082	my ($pl) = @_;	1199	my ($pl) = @_;
1083		1200
		1201	$pl = ref $pl ? $pl->ob->name : $pl;
		1202
1084	my $files = aio_readdir playerdir $pl	1203	my $files = aio_readdir playerdir $pl
1085	or return;	1204	or return;
1086		1205
1087	my @paths;	1206	my @paths;
1088		1207
1089	for (@$files) {	1208	for (@$files) {
1090	utf8::decode $_;	1209	utf8::decode $_;
1091	next if /\.(?:pl|pst)$/;	1210	next if /\.(?:pl|pst)$/;
1092	next unless /^$PATH_SEP/o;	1211	next unless /^$PATH_SEP/o;
1093		1212
1094	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;	1213	push @paths, cf::map::normalise "~$pl/$_";
1095	}	1214	}
1096		1215
1097	\@paths	1216	\@paths
1098	}	1217	}
1099		1218
1100	=item $player->ext_reply ($msgid, $msgtype, %msg)	1219	=item $player->ext_reply ($msgid, %msg)
1101		1220
1102	Sends an ext reply to the player.	1221	Sends an ext reply to the player.
1103		1222
1104	=cut	1223	=cut
1105		1224
1106	sub ext_reply($$$%) {	1225	sub ext_reply($$%) {
1107	my ($self, $id, %msg) = @_;	1226	my ($self, $id, %msg) = @_;
1108		1227
1109	$msg{msgid} = $id;	1228	$msg{msgid} = $id;
1110		1229
1111	$self->send ("ext " . cf::to_json \%msg);	1230	$self->send ("ext " . cf::to_json \%msg);
1112	}	1231	}
1113		1232
1114	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	}
1115		1273
1116	=back	1274	=back
1117
1118		1275
1119	=head3 cf::map	1276	=head3 cf::map
1120		1277
1121	=over 4	1278	=over 4
1122		1279
…		…
1177	my ($self, $merge) = @_;	1334	my ($self, $merge) = @_;
1178		1335
1179	# we have to keep some variables in memory intact	1336	# we have to keep some variables in memory intact
1180	local $self->{path};	1337	local $self->{path};
1181	local $self->{load_path};	1338	local $self->{load_path};
1182	local $self->{deny_save};
1183	local $self->{deny_reset};
1184		1339
1185	$self->SUPER::thawer_merge ($merge);	1340	$self->SUPER::thawer_merge ($merge);
1186	}	1341	}
1187		1342
1188	sub normalise {	1343	sub normalise {
…		…
1260		1415
1261	# the original (read-only) location	1416	# the original (read-only) location
1262	sub load_path {	1417	sub load_path {
1263	my ($self) = @_;	1418	my ($self) = @_;
1264		1419
1265	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1420	"$MAPDIR/$self->{path}.map"
1266	}	1421	}
1267		1422
1268	# the temporary/swap location	1423	# the temporary/swap location
1269	sub save_path {	1424	sub save_path {
1270	my ($self) = @_;	1425	my ($self) = @_;
1271		1426
1272	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1427	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1273	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1428	"$TMPDIR/$path.map"
1274	}	1429	}
1275		1430
1276	# the unique path, undef == no special unique path	1431	# the unique path, undef == no special unique path
1277	sub uniq_path {	1432	sub uniq_path {
1278	my ($self) = @_;	1433	my ($self) = @_;
1279		1434
1280	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1435	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1281	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1436	"$UNIQUEDIR/$path"
1282	}	1437	}
1283		1438
1284	# and all this just because we cannot iterate over	1439	# and all this just because we cannot iterate over
1285	# all maps in C++...	1440	# all maps in C++...
1286	sub change_all_map_light {	1441	sub change_all_map_light {
…		…
1288		1443
1289	$_->change_map_light ($change)	1444	$_->change_map_light ($change)
1290	for grep $_->outdoor, values %cf::MAP;	1445	for grep $_->outdoor, values %cf::MAP;
1291	}	1446	}
1292		1447
		1448	sub decay_objects {
		1449	my ($self) = @_;
		1450
		1451	return if $self->{deny_reset};
		1452
		1453	$self->do_decay_objects;
		1454	}
		1455
1293	sub unlink_save {	1456	sub unlink_save {
1294	my ($self) = @_;	1457	my ($self) = @_;
1295		1458
1296	utf8::encode (my $save = $self->save_path);	1459	utf8::encode (my $save = $self->save_path);
1297	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1460	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1298	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1461	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1299
1300	#d#TODO remove .map and also nuke
1301	$save =~ s/\.map// or return;#d#
1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1303	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1304	}	1462	}
1305		1463
1306	sub load_header_from($) {	1464	sub load_header_from($) {
1307	my ($self, $path) = @_;	1465	my ($self, $path) = @_;
1308		1466
…		…
1358	$self->load_header_orig	1516	$self->load_header_orig
1359	or return;	1517	or return;
1360	$self->prepare_orig;	1518	$self->prepare_orig;
1361	}	1519	}
1362		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
1363	1	1527	1
1364	}	1528	}
1365		1529
1366	sub find;	1530	sub find;
1367	sub find {	1531	sub find {
…		…
1379	$map->{last_save} = $cf::RUNTIME;	1543	$map->{last_save} = $cf::RUNTIME;
1380		1544
1381	$map->load_header	1545	$map->load_header
1382	or return;	1546	or return;
1383		1547
1384	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1548	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1385	# doing this can freeze the server in a sync job, obviously	1549	# doing this can freeze the server in a sync job, obviously
1386	#$cf::WAIT_FOR_TICK->wait;	1550	#$cf::WAIT_FOR_TICK->wait;
1387	$map->reset;	1551	$map->reset;
1388	undef $guard;	1552	undef $guard;
1389	return find $path;	1553	return find $path;
…		…
1400	my ($self) = @_;	1564	my ($self) = @_;
1401		1565
1402	local $self->{deny_reset} = 1; # loading can take a long time	1566	local $self->{deny_reset} = 1; # loading can take a long time
1403		1567
1404	my $path = $self->{path};	1568	my $path = $self->{path};
		1569
		1570	{
1405	my $guard = cf::lock_acquire "map_load:$path";	1571	my $guard = cf::lock_acquire "map_load:$path";
1406		1572
1407	return if $self->in_memory != cf::MAP_SWAPPED;	1573	return if $self->in_memory != cf::MAP_SWAPPED;
1408		1574
1409	$self->in_memory (cf::MAP_LOADING);	1575	$self->in_memory (cf::MAP_LOADING);
1410		1576
1411	$self->alloc;	1577	$self->alloc;
1412		1578
1413	$self->pre_load;	1579	$self->pre_load;
1414
1415	$self->_load_objects ($self->{load_path}, 1)
1416	or return;
1417
1418	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1419	if delete $self->{load_original};
1420
1421	if (my $uniq = $self->uniq_path) {
1422	utf8::encode $uniq;
1423	if (aio_open $uniq, O_RDONLY, 0) {
1424	$self->clear_unique_items;
1425	$self->_load_objects ($uniq, 0);
1426	}
1427	}
1428
1429	Coro::cede;
1430
1431	# now do the right thing for maps
1432	$self->link_multipart_objects;
1433
1434	unless ($self->{deny_activate}) {
1435	$self->decay_objects;
1436	$self->fix_auto_apply;
1437	$self->update_buttons;
1438	Coro::cede;	1580	Coro::cede;
1439	$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;
1440	$self->difficulty ($self->estimate_difficulty)	1599	$self->difficulty ($self->estimate_difficulty)
1441	unless $self->difficulty;	1600	unless $self->difficulty;
1442	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;
1443	$self->activate;	1610	$self->activate;
		1611	}
		1612
		1613	$self->in_memory (cf::MAP_IN_MEMORY);
1444	}	1614	}
1445		1615
1446	$self->post_load;	1616	$self->post_load;
1447
1448	$self->in_memory (cf::MAP_IN_MEMORY);
1449	}	1617	}
1450		1618
1451	sub customise_for {	1619	sub customise_for {
1452	my ($self, $ob) = @_;	1620	my ($self, $ob) = @_;
1453		1621
1454	return find "~" . $ob->name . "/" . $self->{path}	1622	return find "~" . $ob->name . "/" . $self->{path}
1455	if $self->per_player;	1623	if $self->per_player;
		1624
		1625	# return find "?party/" . $ob->name . "/" . $self->{path}
		1626	# if $self->per_party;
1456		1627
1457	$self	1628	$self
1458	}	1629	}
1459		1630
1460	# 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
…		…
1571		1742
1572	sub reset_at {	1743	sub reset_at {
1573	my ($self) = @_;	1744	my ($self) = @_;
1574		1745
1575	# TODO: safety, remove and allow resettable per-player maps	1746	# TODO: safety, remove and allow resettable per-player maps
1576	return 1e99 if $self->isa ("ext::map_per_player");#d#
1577	return 1e99 if $self->{deny_reset};	1747	return 1e99 if $self->{deny_reset};
1578		1748
1579	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1749	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1580	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;
1581		1751
…		…
1592	my ($self) = @_;	1762	my ($self) = @_;
1593		1763
1594	my $lock = cf::lock_acquire "map_data:$self->{path}";	1764	my $lock = cf::lock_acquire "map_data:$self->{path}";
1595		1765
1596	return if $self->players;	1766	return if $self->players;
1597	return if $self->isa ("ext::map_per_player");#d#
1598		1767
1599	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	}
1600		1779
1601	delete $cf::MAP{$self->path};	1780	delete $cf::MAP{$self->path};
1602		1781
1603	$self->in_memory (cf::MAP_SWAPPED);
1604	$self->clear;	1782	$self->clear;
1605		1783
1606	$_->clear_links_to ($self) for values %cf::MAP;	1784	$_->clear_links_to ($self) for values %cf::MAP;
1607		1785
1608	$self->unlink_save;	1786	$self->unlink_save;
…		…
1627	$cf::MAP{$self->path} = $self;	1805	$cf::MAP{$self->path} = $self;
1628		1806
1629	$self->reset; # polite request, might not happen	1807	$self->reset; # polite request, might not happen
1630	}	1808	}
1631		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
1632	=item cf::map::unique_maps	1846	=item cf::map::unique_maps
1633		1847
1634	Returns an arrayref of paths of all shared maps that have	1848	Returns an arrayref of paths of all shared maps that have
1635	instantiated unique items. May block.	1849	instantiated unique items. May block.
1636		1850
1637	=cut	1851	=cut
1638		1852
1639	sub unique_maps() {	1853	sub unique_maps() {
1640	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1854	[
1641	or return;	1855	map {
1642
1643	my @paths;
1644
1645	for (@$files) {
1646	utf8::decode $_;	1856	utf8::decode $_;
1647	next if /\.pst$/;	1857	/\.map$/
1648	next unless /^$PATH_SEP/o;	1858	? normalise $_
1649		1859	: ()
1650	push @paths, cf::map::normalise $_;	1860	} @{ aio_readdir $UNIQUEDIR or [] }
1651	}	1861	]
1652
1653	\@paths
1654	}	1862	}
1655		1863
1656	package cf;	1864	package cf;
1657		1865
1658	=back	1866	=back
…		…
1764	$self->deactivate_recursive;	1972	$self->deactivate_recursive;
1765		1973
1766	return if UNIVERSAL::isa $self->map, "ext::map_link";	1974	return if UNIVERSAL::isa $self->map, "ext::map_link";
1767		1975
1768	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1976	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1769	if $self->map;	1977	if $self->map && $self->map->{path} ne "{link}";
1770		1978
1771	$self->enter_map ($LINK_MAP || link_map, 10, 10);	1979	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1772	}	1980	}
1773		1981
1774	sub cf::object::player::leave_link {	1982	sub cf::object::player::leave_link {
1775	my ($self, $map, $x, $y) = @_;	1983	my ($self, $map, $x, $y) = @_;
		1984
		1985	return unless $self->contr->active;
1776		1986
1777	my $link_pos = delete $self->{_link_pos};	1987	my $link_pos = delete $self->{_link_pos};
1778		1988
1779	unless ($map) {	1989	unless ($map) {
1780	# restore original map position	1990	# restore original map position
…		…
1798	$map->load;	2008	$map->load;
1799	$map->load_diag;	2009	$map->load_diag;
1800		2010
1801	return unless $self->contr->active;	2011	return unless $self->contr->active;
1802	$self->activate_recursive;	2012	$self->activate_recursive;
		2013
		2014	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1803	$self->enter_map ($map, $x, $y);	2015	$self->enter_map ($map, $x, $y);
1804	}	2016	}
1805		2017
1806	cf::player->attach (
1807	on_logout => sub {
1808	my ($pl) = @_;
1809
1810	# abort map switching before logout
1811	if ($pl->ob->{_link_pos}) {
1812	cf::sync_job {
1813	$pl->ob->leave_link
1814	};
1815	}
1816	},
1817	on_login => sub {
1818	my ($pl) = @_;
1819
1820	# try to abort aborted map switching on player login :)
1821	# should happen only on crashes
1822	if ($pl->ob->{_link_pos}) {
1823	$pl->ob->enter_link;
1824	(async {
1825	# we need this sleep as the login has a concurrent enter_exit running
1826	# and this sleep increases chances of the player not ending up in scorn
1827	$pl->ob->reply (undef,
1828	"There was an internal problem at your last logout, "
1829	. "the server will try to bring you to your intended destination in a second.",
1830	cf::NDI_RED);
1831	Coro::Timer::sleep 1;
1832	$pl->ob->leave_link;
1833	})->prio (2);
1834	}
1835	},
1836	);
1837
1838	=item $player_object->goto ($path, $x, $y)	2018	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1839		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
1840	=cut	2025	=cut
		2026
		2027	our $GOTOGEN;
1841		2028
1842	sub cf::object::player::goto {	2029	sub cf::object::player::goto {
1843	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;
1844		2034
1845	$self->enter_link;	2035	$self->enter_link;
1846		2036
1847	(async {	2037	(async {
1848	my $map = eval {	2038	my $map = eval {
1849	my $map = cf::map::find $path;	2039	my $map = cf::map::find $path;
		2040
		2041	if ($map) {
1850	$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
1851	$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 $@;
1852	} or	2054	}
1853	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1854		2055
		2056	if ($gen == $self->{_goto_generation}) {
		2057	delete $self->{_goto_generation};
1855	$self->leave_link ($map, $x, $y);	2058	$self->leave_link ($map, $x, $y);
		2059	}
1856	})->prio (1);	2060	})->prio (1);
1857	}	2061	}
1858		2062
1859	=item $player_object->enter_exit ($exit_object)	2063	=item $player_object->enter_exit ($exit_object)
1860		2064
…		…
1899		2103
1900	$rmp->{random_seed} ||= $exit->random_seed;	2104	$rmp->{random_seed} ||= $exit->random_seed;
1901		2105
1902	my $data = cf::to_json $rmp;	2106	my $data = cf::to_json $rmp;
1903	my $md5 = Digest::MD5::md5_hex $data;	2107	my $md5 = Digest::MD5::md5_hex $data;
1904	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2108	my $meta = "$RANDOMDIR/$md5.meta";
1905		2109
1906	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2110	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1907	aio_write $fh, 0, (length $data), $data, 0;	2111	aio_write $fh, 0, (length $data), $data, 0;
1908	undef $fh;	2112	undef $fh;
1909	aio_rename "$meta~", $meta;	2113	aio_rename "$meta~", $meta;
…		…
1918		2122
1919	return unless $self->type == cf::PLAYER;	2123	return unless $self->type == cf::PLAYER;
1920		2124
1921	if ($exit->slaying eq "/!") {	2125	if ($exit->slaying eq "/!") {
1922	#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
1923	cf::sync_job { prepare_random_map $exit };	2129	cf::sync_job { prepare_random_map $exit };
1924	}	2130	}
1925		2131
1926	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;
1927	my $hp = $exit->stats->hp;	2133	my $hp = $exit->stats->hp;
…		…
1935	$self->goto ($slaying, $hp, $sp);	2141	$self->goto ($slaying, $hp, $sp);
1936		2142
1937	1;	2143	1;
1938	}) {	2144	}) {
1939	$self->message ("Something went wrong deep within the crossfire server. "	2145	$self->message ("Something went wrong deep within the crossfire server. "
1940	. "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. "
1941	. "Please report this to the dungeon master!",	2147	. "Please report this to the dungeon master!",
1942	cf::NDI_UNIQUE | cf::NDI_RED);	2148	cf::NDI_UNIQUE | cf::NDI_RED);
1943		2149
1944	warn "ERROR in enter_exit: $@";	2150	warn "ERROR in enter_exit: $@";
1945	$self->leave_link;	2151	$self->leave_link;
1946	}	2152	}
1947	})->prio (1);	2153	})->prio (1);
…		…
1960		2166
1961	sub cf::client::send_drawinfo {	2167	sub cf::client::send_drawinfo {
1962	my ($self, $text, $flags) = @_;	2168	my ($self, $text, $flags) = @_;
1963		2169
1964	utf8::encode $text;	2170	utf8::encode $text;
1965	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2171	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1966	}	2172	}
1967		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	}
1968		2186
1969	=item $success = $client->query ($flags, "text", \&cb)	2187	=item $success = $client->query ($flags, "text", \&cb)
1970		2188
1971	Queues a query to the client, calling the given callback with	2189	Queues a query to the client, calling the given callback with
1972	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>,
…		…
2001	# get handled first	2219	# get handled first
2002	my $queue = delete $ns->{query_queue}	2220	my $queue = delete $ns->{query_queue}
2003	or return; # be conservative, not sure how that can happen, but we saw a crash here	2221	or return; # be conservative, not sure how that can happen, but we saw a crash here
2004		2222
2005	(shift @$queue)->[1]->($msg);	2223	(shift @$queue)->[1]->($msg);
		2224	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
2006		2225
2007	push @{ $ns->{query_queue} }, @$queue;	2226	push @{ $ns->{query_queue} }, @$queue;
2008		2227
2009	if (@{ $ns->{query_queue} } == @$queue) {	2228	if (@{ $ns->{query_queue} } == @$queue) {
2010	if (@$queue) {	2229	if (@$queue) {
…		…
2068		2287
2069	# here we export the classes and methods available to script code	2288	# here we export the classes and methods available to script code
2070		2289
2071	=pod	2290	=pod
2072		2291
2073	The following fucntions and emthods are available within a safe environment:	2292	The following functions and methods are available within a safe environment:
2074		2293
2075	cf::object contr pay_amount pay_player map	2294	cf::object contr pay_amount pay_player map
2076	cf::object::player player	2295	cf::object::player player
2077	cf::player peaceful	2296	cf::player peaceful
2078	cf::map trigger	2297	cf::map trigger
…		…
2163	#############################################################################	2382	#############################################################################
2164		2383
2165	=head2 EXTENSION DATABASE SUPPORT	2384	=head2 EXTENSION DATABASE SUPPORT
2166		2385
2167	Crossfire maintains a very simple database for extension use. It can	2386	Crossfire maintains a very simple database for extension use. It can
2168	currently store anything that can be serialised using Storable, which	2387	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2169	excludes objects.	2388	convert to/from binary).
2170		2389
2171	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
2172	using it, it should be unique.	2391	using it, it should be unique.
2173		2392
2174	=over 4	2393	=over 4
2175		2394
2176	=item $hashref = cf::db_get $family
2177
2178	Return a hashref for use by the extension C<$family>, which can be
2179	modified. After modifications, you have to call C<cf::db_dirty> or
2180	C<cf::db_sync>.
2181
2182	=item $value = cf::db_get $family => $key	2395	=item $value = cf::db_get $family => $key
2183		2396
2184	Returns a single value from the database	2397	Returns a single value from the database.
2185
2186	=item cf::db_put $family => $hashref
2187
2188	Stores the given family hashref into the database. Updates are delayed, if
2189	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2190		2398
2191	=item cf::db_put $family => $key => $value	2399	=item cf::db_put $family => $key => $value
2192		2400
2193	Stores the given C<$value> in the family hash. Updates are delayed, if you	2401	Stores the given C<$value> in the family.
2194	want the data to be synced to disk immediately, use C<cf::db_sync>.
2195
2196	=item cf::db_dirty
2197
2198	Marks the database as dirty, to be updated at a later time.
2199
2200	=item cf::db_sync
2201
2202	Immediately write the database to disk I<if it is dirty>.
2203		2402
2204	=cut	2403	=cut
2205		2404
2206	our $DB;	2405	our $DB;
2207		2406
2208	{	2407	sub db_init {
2209	my $path = cf::localdir . "/database.pst";	2408	unless ($DB) {
		2409	$DB = BDB::db_create $DB_ENV;
2210		2410
2211	sub db_load() {	2411	cf::sync_job {
2212	$DB = stat $path ? Storable::retrieve $path : { };	2412	eval {
2213	}	2413	$DB->set_flags (BDB::CHKSUM);
2214		2414
2215	my $pid;	2415	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2216		2416	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2217	sub db_save() {	2417	cf::cleanup "db_open(db): $!" if $!;
2218	waitpid $pid, 0 if $pid;	2418	};
2219	if (0 == ($pid = fork)) {	2419	cf::cleanup "db_open(db): $@" if $@;
2220	$DB->{_meta}{version} = 1;
2221	Storable::nstore $DB, "$path~";
2222	rename "$path~", $path;
2223	cf::_exit 0 if defined $pid;
2224	}	2420	};
2225	}	2421	}
		2422	}
2226		2423
2227	my $dirty;
2228
2229	sub db_sync() {
2230	db_save if $dirty;
2231	undef $dirty;
2232	}
2233
2234	my $idle = Event->idle (
2235	reentrant => 0,
2236	min => 10,
2237	max => 20,
2238	repeat => 0,
2239	data => WF_AUTOCANCEL,
2240	cb => \&db_sync,
2241	);
2242
2243	sub db_dirty() {
2244	$dirty = 1;
2245	$idle->start;
2246	}
2247
2248	sub db_get($;$) {	2424	sub db_get($$) {
2249	@_ >= 2	2425	my $key = "$_[0]/$_[1]";
2250	? $DB->{$_[0]}{$_[1]}
2251	: ($DB->{$_[0]} ||= { })
2252	}
2253		2426
		2427	cf::sync_job {
		2428	BDB::db_get $DB, undef, $key, my $data;
		2429
		2430	$! ? ()
		2431	: $data
		2432	}
		2433	}
		2434
2254	sub db_put($$;$) {	2435	sub db_put($$$) {
2255	if (@_ >= 3) {	2436	BDB::dbreq_pri 4;
2256	$DB->{$_[0]}{$_[1]} = $_[2];	2437	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2257	} else {	2438	}
2258	$DB->{$_[0]} = $_[1];
2259	}
2260	db_dirty;
2261	}
2262		2439
2263	cf::global->attach (	2440	=item cf::cache $id => [$paths...], $processversion => $process
2264	prio => 10000,	2441
2265	on_cleanup => sub {	2442	Generic caching function that returns the value of the resource $id,
2266	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->[$_]: $!";
2267	},	2472	}
2268	);	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 $@;
		2550	_exit 0;
		2551	}
2269	}	2552	}
2270		2553
2271	#############################################################################	2554	#############################################################################
2272	# the server's main()	2555	# the server's init and main functions
		2556
		2557	sub load_facedata($) {
		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	}
2273		2644
2274	sub cfg_load {	2645	sub cfg_load {
2275	open my $fh, "<:utf8", cf::confdir . "/config"	2646	open my $fh, "<:utf8", "$CONFDIR/config"
2276	or return;	2647	or return;
2277		2648
2278	local $/;	2649	local $/;
2279	*CFG = YAML::Syck::Load <$fh>;	2650	*CFG = YAML::Syck::Load <$fh>;
2280		2651
…		…
2300	Event::one_event;	2671	Event::one_event;
2301	})->prio (Coro::PRIO_MAX);	2672	})->prio (Coro::PRIO_MAX);
2302	};	2673	};
2303		2674
2304	cfg_load;	2675	cfg_load;
2305	db_load;	2676	db_init;
2306	load_extensions;	2677	load_extensions;
2307		2678
2308	$TICK_WATCHER->start;	2679	$TICK_WATCHER->start;
2309	Event::loop;	2680	Event::loop;
2310	}	2681	}
…		…
2349	my $map = $cf::MAP{$path} or next;	2720	my $map = $cf::MAP{$path} or next;
2350	$map->valid or next;	2721	$map->valid or next;
2351	$map->save;	2722	$map->save;
2352	}	2723	}
2353	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 $DB_ENV;
		2728	warn "end emergency database checkpoint\n";
2354	};	2729	};
2355		2730
2356	warn "leave emergency perl save\n";	2731	warn "leave emergency perl save\n";
2357	}	2732	}
2358		2733
		2734	sub post_cleanup {
		2735	my ($make_core) = @_;
		2736
		2737	warn Carp::longmess "post_cleanup backtrace"
		2738	if $make_core;
		2739	}
		2740
2359	sub reload() {	2741	sub do_reload_perl() {
2360	# can/must only be called in main	2742	# can/must only be called in main
2361	if ($Coro::current != $Coro::main) {	2743	if ($Coro::current != $Coro::main) {
2362	warn "can only reload from main coroutine";	2744	warn "can only reload from main coroutine";
2363	return;	2745	return;
2364	}	2746	}
2365		2747
2366	warn "reloading...";	2748	warn "reloading...";
2367		2749
2368	warn "cancelling server ticker";	2750	warn "entering sync_job";
2369	$TICK_WATCHER->cancel;
2370		2751
		2752	cf::sync_job {
		2753	cf::write_runtime; # external watchdog should not bark
2371	cf::emergency_save;	2754	cf::emergency_save;
		2755	cf::write_runtime; # external watchdog should not bark
2372		2756
2373	eval {	2757	warn "syncing database to disk";
		2758	BDB::db_env_txn_checkpoint $DB_ENV;
		2759
2374	# 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
2375
2376	warn "syncing database to disk";
2377	cf::db_sync;
2378		2761
2379	warn "cancelling all WF_AUTOCANCEL watchers";	2762	warn "cancelling all WF_AUTOCANCEL watchers";
2380	for (Event::all_watchers) {	2763	for (Event::all_watchers) {
2381	$_->cancel if $_->data & WF_AUTOCANCEL;	2764	$_->cancel if $_->data & WF_AUTOCANCEL;
2382	}	2765	}
2383		2766
2384	warn "flushing outstanding aio requests";	2767	warn "flushing outstanding aio requests";
2385	for (;;) {	2768	for (;;) {
		2769	BDB::flush;
2386	IO::AIO::flush;	2770	IO::AIO::flush;
2387	Coro::cede;	2771	Coro::cede;
2388	last unless IO::AIO::nreqs;	2772	last unless IO::AIO::nreqs || BDB::nreqs;
2389	warn "iterate...";	2773	warn "iterate...";
2390	}	2774	}
		2775
		2776	++$RELOAD;
2391		2777
2392	warn "cancelling all extension coros";	2778	warn "cancelling all extension coros";
2393	$_->cancel for values %EXT_CORO;	2779	$_->cancel for values %EXT_CORO;
2394	%EXT_CORO = ();	2780	%EXT_CORO = ();
2395		2781
…		…
2435	Symbol::delete_package "safe::$_"	2821	Symbol::delete_package "safe::$_"
2436	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);
2437		2823
2438	warn "unloading cf.pm \"a bit\"";	2824	warn "unloading cf.pm \"a bit\"";
2439	delete $INC{"cf.pm"};	2825	delete $INC{"cf.pm"};
		2826	delete $INC{"cf/pod.pm"};
2440		2827
2441	# don't, removes xs symbols, too,	2828	# don't, removes xs symbols, too,
2442	# and global variables created in xs	2829	# and global variables created in xs
2443	#Symbol::delete_package __PACKAGE__;	2830	#Symbol::delete_package __PACKAGE__;
2444		2831
…		…
2448	require cf;	2835	require cf;
2449	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2836	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2450		2837
2451	warn "loading config and database again";	2838	warn "loading config and database again";
2452	cf::cfg_load;	2839	cf::cfg_load;
2453	cf::db_load;
2454		2840
2455	warn "loading extensions";	2841	warn "loading extensions";
2456	cf::load_extensions;	2842	cf::load_extensions;
2457		2843
2458	warn "reattaching attachments to objects/players";	2844	warn "reattaching attachments to objects/players";
2459	_global_reattach;	2845	_global_reattach; # objects, sockets
2460	warn "reattaching attachments to maps";	2846	warn "reattaching attachments to maps";
2461	reattach $_ for values %MAP;	2847	reattach $_ for values %MAP;
		2848	warn "reattaching attachments to players";
		2849	reattach $_ for values %PLAYER;
2462		2850
2463	warn "restarting server ticker";	2851	warn "leaving sync_job";
2464		2852
2465	$TICK_WATCHER->start;	2853	1
2466	};	2854	} or do {
2467
2468	if ($@) {
2469	warn $@;	2855	warn $@;
2470	warn "error while reloading, exiting.";	2856	warn "error while reloading, exiting.";
2471	exit 1;	2857	exit 1;
2472	}	2858	};
2473		2859
2474	warn "reloaded";	2860	warn "reloaded";
2475	};	2861	};
2476		2862
2477	our $RELOAD_WATCHER; # used only during reload	2863	our $RELOAD_WATCHER; # used only during reload
2478		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 $RELOAD_WATCHER;
		2876	},
		2877	);
		2878	}
		2879
2479	register_command "reload" => sub {	2880	register_command "reload" => sub {
2480	my ($who, $arg) = @_;	2881	my ($who, $arg) = @_;
2481		2882
2482	if ($who->flag (FLAG_WIZ)) {	2883	if ($who->flag (FLAG_WIZ)) {
2483	$who->message ("reloading server.");	2884	$who->message ("reloading server.");
2484		2885	async { reload_perl };
2485	# doing reload synchronously and two reloads happen back-to-back,
2486	# coro crashes during coro_state_free->destroy here.
2487
2488	$RELOAD_WATCHER ||= Event->timer (
2489	reentrant => 0,
2490	after => 0,
2491	data => WF_AUTOCANCEL,
2492	cb => sub {
2493	reload;
2494	undef $RELOAD_WATCHER;
2495	},
2496	);
2497	}	2886	}
2498	};	2887	};
2499		2888
2500	unshift @INC, $LIBDIR;	2889	unshift @INC, $LIBDIR;
2501		2890
2502	my $bug_warning = 0;	2891	my $bug_warning = 0;
2503		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;
2504	$TICK_WATCHER = Event->timer (	2916	$TICK_WATCHER = Event->timer (
2505	reentrant => 0,	2917	reentrant => 0,
2506	parked => 1,	2918	parked => 1,
2507	prio => 0,	2919	prio => 0,
2508	at => $NEXT_TICK || $TICK,	2920	at => $NEXT_TICK || $TICK,
…		…
2512	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	2924	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2513	unless ++$bug_warning > 10;	2925	unless ++$bug_warning > 10;
2514	return;	2926	return;
2515	}	2927	}
2516		2928
2517	$NOW = Event::time;	2929	$NOW = $tick_start = Event::time;
2518		2930
2519	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
2520	$RUNTIME += $TICK;	2956	$RUNTIME += $TICK;
2521	$NEXT_TICK += $TICK;	2957	$NEXT_TICK += $TICK;
2522		2958
2523	$WAIT_FOR_TICK->broadcast;	2959	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2524	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2960	$NEXT_RUNTIME_WRITE = $NOW + 10;
2525		2961	Coro::async_pool {
2526	Event::sweep;	2962	write_runtime
2527	Coro::cede_notself;	2963	or warn "ERROR: unable to write runtime file: $!";
		2964	};
2528		2965	}
		2966
2529	# my $AFTER = Event::time;	2967	# my $AFTER = Event::time;
2530	# warn $AFTER - $NOW;#d#	2968	# warn $AFTER - $NOW;#d#
2531		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
2532	# 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
2533	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2980	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2534		2981
2535	$TICK_WATCHER->at ($NEXT_TICK);	2982	$TICK_WATCHER->at ($NEXT_TICK);
2536	$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
2537	},	2991	},
2538	);	2992	);
2539		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;
2540	IO::AIO::max_poll_time $TICK * 0.1;	3048	IO::AIO::max_poll_time $TICK * 0.1;
2541
2542	undef $Coro::AIO::WATCHER;
2543	$AIO_POLL_WATCHER = Event->io (	3049	$AIO_POLL_WATCHER = Event->io (
2544	reentrant => 0,	3050	reentrant => 0,
		3051	data => WF_AUTOCANCEL,
2545	fd => IO::AIO::poll_fileno,	3052	fd => IO::AIO::poll_fileno,
2546	poll => 'r',	3053	poll => 'r',
2547	prio => 6,	3054	prio => 6,
2548	data => WF_AUTOCANCEL,
2549	cb => \&IO::AIO::poll_cb,	3055	cb => \&IO::AIO::poll_cb,
2550	);	3056	);
		3057	}
2551		3058
2552	$WRITE_RUNTIME_WATCHER = Event->timer (	3059	my $_log_backtrace;
2553	reentrant => 0,	3060
2554	data => WF_AUTOCANCEL,	3061	sub _log_backtrace {
2555	after => 1,	3062	my ($msg, @addr) = @_;
2556	interval => 10,	3063
2557	prio => 6, # keep it lowest so it acts like a watchdog	3064	$msg =~ s/\n//;
2558	cb => Coro::unblock_sub {	3065
2559	write_runtime	3066	# limit the # of concurrent backtraces
2560	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";
2561	},	3094	}
2562	);	3095	}
		3096
		3097	# load additional modules
		3098	use cf::pod;
2563		3099
2564	END { cf::emergency_save }	3100	END { cf::emergency_save }
2565		3101
2566	1	3102	1
2567		3103

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