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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.139 by root, Fri Jan 5 19:12:03 2007 UTC vs.
Revision 1.224 by root, Mon Mar 12 21:42:12 2007 UTC

…		…
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Storable;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
12		13
13	use Coro 3.3 ();	14	use Coro 3.52 ();
		15	use Coro::State;
14	use Coro::Event;	16	use Coro::Event;
15	use Coro::Timer;	17	use Coro::Timer;
16	use Coro::Signal;	18	use Coro::Signal;
17	use Coro::Semaphore;	19	use Coro::Semaphore;
18	use Coro::AIO;	20	use Coro::AIO;
19		21
		22	use BDB ();
		23	use Data::Dumper;
20	use Digest::MD5;	24	use Digest::MD5;
21	use Fcntl;	25	use Fcntl;
22	use IO::AIO 2.31 ();	26	use IO::AIO 2.32 ();
23	use YAML::Syck ();	27	use YAML::Syck ();
24	use Time::HiRes;	28	use Time::HiRes;
		29	use Compress::LZF;
25		30
		31	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		32	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	33	$Event::Eval = 1; # no idea why this is required, but it is
		34
		35	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		36
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	37	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	38	$YAML::Syck::ImplicitUnicode = 1;
30		39
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	40	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		41
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
35	our %COMMAND = ();	42	our %COMMAND = ();
36	our %COMMAND_TIME = ();	43	our %COMMAND_TIME = ();
		44
		45	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	46	our %EXTCMD = ();
		47	our %EXT_CORO = (); # coroutines bound to extensions
		48	our %EXT_MAP = (); # pluggable maps
38		49
		50	our $RELOAD; # number of reloads so far
39	our @EVENT;	51	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	52	our $LIBDIR = datadir . "/ext";
41		53
42	our $TICK = MAX_TIME * 1e-6;	54	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	55	our $TICK_WATCHER;
		56	our $AIO_POLL_WATCHER;
		57	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	58	our $NEXT_TICK;
45	our $NOW;	59	our $NOW;
		60	our $USE_FSYNC = 1; # use fsync to write maps - default off
		61
		62	our $BDB_POLL_WATCHER;
		63	our $DB_ENV;
46		64
47	our %CFG;	65	our %CFG;
48		66
49	our $UPTIME; $UPTIME ||= time;	67	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	68	our $RUNTIME;
51		69
		70	our %PLAYER; # all users
52	our %MAP; # all maps	71	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	72	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	73	our $RANDOM_MAPS = cf::localdir . "/random";
55	our %EXT_CORO;	74	our $BDB_ENV_DIR = cf::localdir . "/db";
		75
		76	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		77	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		78
		79	# used to convert map paths into valid unix filenames by replacing / by ∕
		80	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		81
57	binmode STDOUT;	82	binmode STDOUT;
58	binmode STDERR;	83	binmode STDERR;
59		84
60	# read virtual server time, if available	85	# read virtual server time, if available
…		…
67	mkdir cf::localdir;	92	mkdir cf::localdir;
68	mkdir cf::localdir . "/" . cf::playerdir;	93	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;	94	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;	95	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;	96	mkdir $RANDOM_MAPS;
		97	mkdir $BDB_ENV_DIR;
72		98
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	99	our $EMERGENCY_POSITION;
		100
		101	sub cf::map::normalise;
76		102
77	#############################################################################	103	#############################################################################
78		104
79	=head2 GLOBAL VARIABLES	105	=head2 GLOBAL VARIABLES
80		106
…		…
104		130
105	=item %cf::CFG	131	=item %cf::CFG
106		132
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	133	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	134	from wherever your confdir points to.
		135
		136	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		137
		138	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		139	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		140	processing has been done. Call C<< ->wait >> on them to maximise the
		141	window of cpu time available, or simply to synchronise to the server tick.
109		142
110	=back	143	=back
111		144
112	=cut	145	=cut
113		146
…		…
117	utf8::encode $msg;	150	utf8::encode $msg;
118		151
119	$msg .= "\n"	152	$msg .= "\n"
120	unless $msg =~ /\n$/;	153	unless $msg =~ /\n$/;
121		154
122	LOG llevError, "cfperl: $msg";	155	LOG llevError, $msg;
123	};	156	};
124	}	157	}
125		158
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	159	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	160	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		178
146	$Event::DIED = sub {	179	$Event::DIED = sub {
147	warn "error in event callback: @_";	180	warn "error in event callback: @_";
148	};	181	};
149		182
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	183	=head2 UTILITY FUNCTIONS
155		184
156	=over 4	185	=over 4
157		186
		187	=item dumpval $ref
		188
158	=cut	189	=cut
		190
		191	sub dumpval {
		192	eval {
		193	local $SIG{__DIE__};
		194	my $d;
		195	if (1) {
		196	$d = new Data::Dumper([$_[0]], ["*var"]);
		197	$d->Terse(1);
		198	$d->Indent(2);
		199	$d->Quotekeys(0);
		200	$d->Useqq(1);
		201	#$d->Bless(...);
		202	$d->Seen($_[1]) if @_ > 1;
		203	$d = $d->Dump();
		204	}
		205	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		206	$d
		207	} || "[unable to dump $_[0]: '$@']";
		208	}
159		209
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	210	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		211
162	=item $ref = cf::from_json $json	212	=item $ref = cf::from_json $json
163		213
…		…
224	}	274	}
225		275
226	sub freeze_mainloop {	276	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	277	return unless $TICK_WATCHER->is_active;
228		278
229	my $guard = Coro::guard { $TICK_WATCHER->start };	279	my $guard = Coro::guard {
		280	$TICK_WATCHER->start;
		281	};
230	$TICK_WATCHER->stop;	282	$TICK_WATCHER->stop;
231	$guard	283	$guard
232	}	284	}
		285
		286	=item cf::async { BLOCK }
		287
		288	Currently the same as Coro::async_pool, meaning you cannot use
		289	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		290	thing you are allowed to do is call C<prio> on it.
		291
		292	=cut
		293
		294	BEGIN { *async = \&Coro::async_pool }
233		295
234	=item cf::sync_job { BLOCK }	296	=item cf::sync_job { BLOCK }
235		297
236	The design of crossfire+ requires that the main coro ($Coro::main) is	298	The design of crossfire+ requires that the main coro ($Coro::main) is
237	always able to handle events or runnable, as crossfire+ is only partly	299	always able to handle events or runnable, as crossfire+ is only partly
…		…
256	my $freeze_guard = freeze_mainloop;	318	my $freeze_guard = freeze_mainloop;
257		319
258	my $busy = 1;	320	my $busy = 1;
259	my @res;	321	my @res;
260		322
261	(Coro::async_pool {	323	(async {
262	@res = eval { $job->() };	324	@res = eval { $job->() };
263	warn $@ if $@;	325	warn $@ if $@;
264	undef $busy;	326	undef $busy;
265	})->prio (Coro::PRIO_MAX);	327	})->prio (Coro::PRIO_MAX);
266		328
267	while ($busy) {	329	while ($busy) {
268	unless (Coro::cede) {	330	Coro::cede or Event::one_event;
269	Coro::nready ? Event::one_event 0 : Event::one_event;
270	Coro::cede_notself unless Coro::cede;
271	}
272	}	331	}
273		332
274	wantarray ? @res : $res[0]	333	wantarray ? @res : $res[0]
275	} else {	334	} else {
276	# we are in another coroutine, how wonderful, everything just works	335	# we are in another coroutine, how wonderful, everything just works
277		336
278	$job->()	337	$job->()
279	}	338	}
280	}	339	}
281		340
282	=item $coro = cf::coro { BLOCK }	341	=item $coro = cf::async_ext { BLOCK }
283		342
284	Creates (and readies) and returns a new coro. This coro is automcatially	343	Like async, but this coro is automatically being canceled when the
285	being canceled when the extension calling this is being unloaded.	344	extension calling this is being unloaded.
286		345
287	=cut	346	=cut
288		347
289	sub coro(&) {	348	sub async_ext(&) {
290	my $cb = shift;	349	my $cb = shift;
291		350
292	my $coro = &Coro::async_pool ($cb);	351	my $coro = &Coro::async ($cb);
293		352
294	$coro->on_destroy (sub {	353	$coro->on_destroy (sub {
295	delete $EXT_CORO{$coro+0};	354	delete $EXT_CORO{$coro+0};
296	});	355	});
297	$EXT_CORO{$coro+0} = $coro;	356	$EXT_CORO{$coro+0} = $coro;
298		357
299	$coro	358	$coro
300	}	359	}
301		360
302	sub write_runtime {	361	sub write_runtime {
		362	my $guard = cf::lock_acquire "write_runtime";
		363
303	my $runtime = cf::localdir . "/runtime";	364	my $runtime = cf::localdir . "/runtime";
304		365
305	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	366	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
306	or return;	367	or return;
307		368
		369	my $value = $cf::RUNTIME + 90 + 10;
308	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	370	# 10 is the runtime save interval, for a monotonic clock
		371	# 60 allows for the watchdog to kill the server.
		372
309	(aio_write $fh, 0, (length $value), $value, 0) <= 0	373	(aio_write $fh, 0, (length $value), $value, 0) <= 0
310	and return;	374	and return;
311		375
		376	# always fsync - this file is important
312	aio_fsync $fh	377	aio_fsync $fh
313	and return;	378	and return;
314		379
315	close $fh	380	close $fh
316	or return;	381	or return;
…		…
322	}	387	}
323		388
324	=back	389	=back
325		390
326	=cut	391	=cut
327
328	#############################################################################
329
330	package cf::path;
331
332	sub new {
333	my ($class, $path, $base) = @_;
334
335	$path = $path->as_string if ref $path;
336
337	my $self = bless { }, $class;
338
339	# {... are special paths that are not touched
340	# ?xxx/... are special absolute paths
341	# ?random/... random maps
342	# /! non-realised random map exit
343	# /... normal maps
344	# ~/... per-player maps without a specific player (DO NOT USE)
345	# ~user/... per-player map of a specific user
346
347	if ($path =~ /^{/) {
348	# fine as it is
349	} elsif ($path =~ s{^\?random/}{}) {
350	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
351	$self->{random} = cf::from_json $data;
352	} else {
353	if ($path =~ s{^~([^/]+)?}{}) {
354	$self->{user_rel} = 1;
355
356	if (defined $1) {
357	$self->{user} = $1;
358	} elsif ($base =~ m{^~([^/]+)/}) {
359	$self->{user} = $1;
360	} else {
361	warn "cannot resolve user-relative path without user <$path,$base>\n";
362	}
363	} elsif ($path =~ /^\//) {
364	# already absolute
365	} else {
366	$base =~ s{[^/]+/?$}{};
367	return $class->new ("$base/$path");
368	}
369
370	for ($path) {
371	redo if s{/\.?/}{/};
372	redo if s{/[^/]+/\.\./}{/};
373	}
374	}
375
376	$self->{path} = $path;
377
378	$self
379	}
380
381	# the name / primary key / in-game path
382	sub as_string {
383	my ($self) = @_;
384
385	$self->{user_rel} ? "~$self->{user}$self->{path}"
386	: $self->{random} ? "?random/$self->{path}"
387	: $self->{path}
388	}
389
390	# the displayed name, this is a one way mapping
391	sub visible_name {
392	my ($self) = @_;
393
394	# if (my $rmp = $self->{random}) {
395	# # todo: be more intelligent about this
396	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
397	# } else {
398	$self->as_string
399	# }
400	}
401
402	# escape the /'s in the path
403	sub _escaped_path {
404	# ∕ is U+2215
405	(my $path = $_[0]{path}) =~ s/\//∕/g;
406	$path
407	}
408
409	# the original (read-only) location
410	sub load_path {
411	my ($self) = @_;
412
413	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
414	}
415
416	# the temporary/swap location
417	sub save_path {
418	my ($self) = @_;
419
420	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
421	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
422	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
423	}
424
425	# the unique path, might be eq to save_path
426	sub uniq_path {
427	my ($self) = @_;
428
429	$self->{user_rel} || $self->{random}
430	? undef
431	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
432	}
433
434	# return random map parameters, or undef
435	sub random_map_params {
436	my ($self) = @_;
437
438	$self->{random}
439	}
440
441	# this is somewhat ugly, but style maps do need special treatment
442	sub is_style_map {
443	$_[0]{path} =~ m{^/styles/}
444	}
445
446	package cf;
447		392
448	#############################################################################	393	#############################################################################
449		394
450	=head2 ATTACHABLE OBJECTS	395	=head2 ATTACHABLE OBJECTS
451		396
…		…
577	our @CB_TYPE = (); # registry for type (cf-object class) based events	522	our @CB_TYPE = (); # registry for type (cf-object class) based events
578	our @CB_MAP = ();	523	our @CB_MAP = ();
579		524
580	my %attachment;	525	my %attachment;
581		526
		527	sub cf::attachable::thawer_merge {
		528	# simply override everything except _meta
		529	local $_[0]{_meta};
		530	%{$_[0]} = %{$_[1]};
		531	}
		532
582	sub _attach_cb($$$$) {	533	sub _attach_cb($$$$) {
583	my ($registry, $event, $prio, $cb) = @_;	534	my ($registry, $event, $prio, $cb) = @_;
584		535
585	use sort 'stable';	536	use sort 'stable';
586		537
…		…
757	# object support	708	# object support
758		709
759	sub reattach {	710	sub reattach {
760	# basically do the same as instantiate, without calling instantiate	711	# basically do the same as instantiate, without calling instantiate
761	my ($obj) = @_;	712	my ($obj) = @_;
		713
		714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
762		715
763	my $registry = $obj->registry;	716	my $registry = $obj->registry;
764		717
765	@$registry = ();	718	@$registry = ();
766		719
…		…
813	$filename, length $$rdata, scalar @$objs;	766	$filename, length $$rdata, scalar @$objs;
814		767
815	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
816	chmod SAVE_MODE, $fh;	769	chmod SAVE_MODE, $fh;
817	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
818	aio_fsync $fh;	771	aio_fsync $fh if $cf::USE_FSYNC;
819	close $fh;	772	close $fh;
820		773
821	if (@$objs) {	774	if (@$objs) {
822	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	776	chmod SAVE_MODE, $fh;
824	my $data = Storable::nfreeze { version => 1, objs => $objs };	777	my $data = Storable::nfreeze { version => 1, objs => $objs };
825	aio_write $fh, 0, (length $data), $data, 0;	778	aio_write $fh, 0, (length $data), $data, 0;
826	aio_fsync $fh;	779	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	780	close $fh;
828	aio_rename "$filename.pst~", "$filename.pst";	781	aio_rename "$filename.pst~", "$filename.pst";
829	}	782	}
830	} else {	783	} else {
831	aio_unlink "$filename.pst";	784	aio_unlink "$filename.pst";
…		…
898	=cut	851	=cut
899		852
900	sub register_extcmd {	853	sub register_extcmd {
901	my ($name, $cb) = @_;	854	my ($name, $cb) = @_;
902		855
903	my $caller = caller;
904	#warn "registering extcmd '$name' to '$caller'";
905
906	$EXTCMD{$name} = [$cb, $caller];	856	$EXTCMD{$name} = $cb;
907	}	857	}
908		858
909	cf::player->attach (	859	cf::player->attach (
910	on_command => sub {	860	on_command => sub {
911	my ($pl, $name, $params) = @_;	861	my ($pl, $name, $params) = @_;
…		…
924		874
925	my $msg = eval { from_json $buf };	875	my $msg = eval { from_json $buf };
926		876
927	if (ref $msg) {	877	if (ref $msg) {
928	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
929	if (my %reply = $cb->[0]->($pl, $msg)) {	879	if (my %reply = $cb->($pl, $msg)) {
930	$pl->ext_reply ($msg->{msgid}, %reply);	880	$pl->ext_reply ($msg->{msgid}, %reply);
931	}	881	}
932	}	882	}
933	} else {	883	} else {
934	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
936		886
937	cf::override;	887	cf::override;
938	},	888	},
939	);	889	);
940		890
941	sub register {
942	my ($base, $pkg) = @_;
943
944	#TODO
945	}
946
947	sub load_extension {	891	sub load_extension {
948	my ($path) = @_;	892	my ($path) = @_;
949		893
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
951	my $base = $1;	895	my $base = $1;
952	my $pkg = $1;	896	my $pkg = $1;
953	$pkg =~ s/[^[:word:]]/_/g;	897	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";	898	$pkg = "ext::$pkg";
955		899
956	warn "loading '$path' into '$pkg'\n";	900	warn "... loading '$path' into '$pkg'\n";
957		901
958	open my $fh, "<:utf8", $path	902	open my $fh, "<:utf8", $path
959	or die "$path: $!";	903	or die "$path: $!";
960		904
961	my $source =	905	my $source =
962	"package $pkg; use strict; use utf8;\n"	906	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"	907	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })	908	. (do { local $/; <$fh> })
965	. "\n};\n1";	909	. "\n};\n1";
966		910
967	eval $source	911	unless (eval $source) {
968	or die $@ ? "$path: $@\n"	912	my $msg = $@ ? "$path: $@\n"
969	: "extension disabled.\n";	913	: "extension disabled.\n";
970		914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
971	push @exts, $pkg;	915	warn $@;
972	$ext_pkg{$base} = $pkg;	916	warn "mandatory extension failed to load, exiting.\n";
973		917	exit 1;
974	# no strict 'refs';	918	}
975	# @{"$pkg\::ISA"} = ext::;	919	die $@;
976
977	register $base, $pkg;
978	}
979
980	sub unload_extension {
981	my ($pkg) = @_;
982
983	warn "removing extension $pkg\n";
984
985	# remove hooks
986	#TODO
987	# for my $idx (0 .. $#PLUGIN_EVENT) {
988	# delete $hook[$idx]{$pkg};
989	# }	920	}
990		921
991	# remove commands	922	push @EXTS, $pkg;
992	for my $name (keys %COMMAND) {
993	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
994
995	if (@cb) {
996	$COMMAND{$name} = \@cb;
997	} else {
998	delete $COMMAND{$name};
999	}
1000	}
1001
1002	# remove extcmds
1003	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1004	delete $EXTCMD{$name};
1005	}
1006
1007	if (my $cb = $pkg->can ("unload")) {
1008	eval {
1009	$cb->($pkg);
1010	1
1011	} or warn "$pkg unloaded, but with errors: $@";
1012	}
1013
1014	Symbol::delete_package $pkg;
1015	}	923	}
1016		924
1017	sub load_extensions {	925	sub load_extensions {
1018	for my $ext (<$LIBDIR/*.ext>) {	926	for my $ext (<$LIBDIR/*.ext>) {
1019	next unless -r $ext;	927	next unless -r $ext;
…		…
1023	} or warn "$ext not loaded: $@";	931	} or warn "$ext not loaded: $@";
1024	}	932	}
1025	}	933	}
1026		934
1027	#############################################################################	935	#############################################################################
1028	# load/save/clean perl data associated with a map
1029
1030	*cf::mapsupport::on_clean = sub {
1031	my ($map) = @_;
1032
1033	my $path = $map->tmpname;
1034	defined $path or return;
1035
1036	unlink "$path.pst";
1037	};
1038
1039	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1040
1041	#############################################################################
1042	# load/save perl data associated with player->ob objects
1043
1044	sub all_objects(@) {
1045	@_, map all_objects ($_->inv), @_
1046	}
1047
1048	# TODO: compatibility cruft, remove when no longer needed
1049	cf::player->attach (
1050	on_load => sub {
1051	my ($pl, $path) = @_;
1052
1053	for my $o (all_objects $pl->ob) {
1054	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1055	$o->set_ob_key_value ("_perl_data");
1056
1057	%$o = %{ Storable::thaw pack "H*", $value };
1058	}
1059	}
1060	},
1061	);
1062
1063	#############################################################################
1064		936
1065	=head2 CORE EXTENSIONS	937	=head2 CORE EXTENSIONS
1066		938
1067	Functions and methods that extend core crossfire objects.	939	Functions and methods that extend core crossfire objects.
1068		940
		941	=cut
		942
		943	package cf::player;
		944
		945	use Coro::AIO;
		946
1069	=head3 cf::player	947	=head3 cf::player
1070		948
1071	=over 4	949	=over 4
1072		950
1073	=item cf::player::exists $login	951	=item cf::player::find $login
1074		952
1075	Returns true when the given account exists.	953	Returns the given player object, loading it if necessary (might block).
1076		954
1077	=cut	955	=cut
1078		956
1079	sub cf::player::exists($) {	957	sub playerdir($) {
1080	cf::player::find $_[0]	958	cf::localdir
1081	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	959	. "/"
		960	. cf::playerdir
		961	. "/"
		962	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		963	}
		964
		965	sub path($) {
		966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		967
		968	(playerdir $login) . "/$login.pl"
		969	}
		970
		971	sub find_active($) {
		972	$cf::PLAYER{$_[0]}
		973	and $cf::PLAYER{$_[0]}->active
		974	and $cf::PLAYER{$_[0]}
		975	}
		976
		977	sub exists($) {
		978	my ($login) = @_;
		979
		980	$cf::PLAYER{$login}
		981	or cf::sync_job { !aio_stat path $login }
		982	}
		983
		984	sub find($) {
		985	return $cf::PLAYER{$_[0]} || do {
		986	my $login = $_[0];
		987
		988	my $guard = cf::lock_acquire "user_find:$login";
		989
		990	$cf::PLAYER{$_[0]} || do {
		991	my $pl = load_pl path $login
		992	or return;
		993	$cf::PLAYER{$login} = $pl
		994	}
		995	}
		996	}
		997
		998	sub save($) {
		999	my ($pl) = @_;
		1000
		1001	return if $pl->{deny_save};
		1002
		1003	my $path = path $pl;
		1004	my $guard = cf::lock_acquire "user_save:$path";
		1005
		1006	return if $pl->{deny_save};
		1007
		1008	aio_mkdir playerdir $pl, 0770;
		1009	$pl->{last_save} = $cf::RUNTIME;
		1010
		1011	$pl->save_pl ($path);
		1012	Coro::cede;
		1013	}
		1014
		1015	sub new($) {
		1016	my ($login) = @_;
		1017
		1018	my $self = create;
		1019
		1020	$self->ob->name ($login);
		1021	$self->{deny_save} = 1;
		1022
		1023	$cf::PLAYER{$login} = $self;
		1024
		1025	$self
		1026	}
		1027
		1028	=item $pl->quit_character
		1029
		1030	Nukes the player without looking back. If logged in, the connection will
		1031	be destroyed. May block for a long time.
		1032
		1033	=cut
		1034
		1035	sub quit_character {
		1036	my ($pl) = @_;
		1037
		1038	my $name = $pl->ob->name;
		1039
		1040	$pl->{deny_save} = 1;
		1041	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1042
		1043	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1044	$pl->deactivate;
		1045	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1046	$pl->ns->destroy if $pl->ns;
		1047
		1048	my $path = playerdir $pl;
		1049	my $temp = "$path~$cf::RUNTIME~deleting~";
		1050	aio_rename $path, $temp;
		1051	delete $cf::PLAYER{$pl->ob->name};
		1052	$pl->destroy;
		1053
		1054	my $prefix = qr<^~\Q$name\E/>;
		1055
		1056	# nuke player maps
		1057	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1058
		1059	IO::AIO::aio_rmtree $temp;
		1060	}
		1061
		1062	=item $pl->kick
		1063
		1064	Kicks a player out of the game. This destroys the connection.
		1065
		1066	=cut
		1067
		1068	sub kick {
		1069	my ($pl, $kicker) = @_;
		1070
		1071	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1072	$pl->killer ("kicked");
		1073	$pl->ns->destroy;
		1074	}
		1075
		1076	=item cf::player::list_logins
		1077
		1078	Returns am arrayref of all valid playernames in the system, can take a
		1079	while and may block, so not sync_job-capable, ever.
		1080
		1081	=cut
		1082
		1083	sub list_logins {
		1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1085	or return [];
		1086
		1087	my @logins;
		1088
		1089	for my $login (@$dirs) {
		1090	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1091	aio_read $fh, 0, 512, my $buf, 0 or next;
		1092	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1093
		1094	utf8::decode $login;
		1095	push @logins, $login;
		1096	}
		1097
		1098	\@logins
		1099	}
		1100
		1101	=item $player->maps
		1102
		1103	Returns an arrayref of map paths that are private for this
		1104	player. May block.
		1105
		1106	=cut
		1107
		1108	sub maps($) {
		1109	my ($pl) = @_;
		1110
		1111	$pl = ref $pl ? $pl->ob->name : $pl;
		1112
		1113	my $files = aio_readdir playerdir $pl
		1114	or return;
		1115
		1116	my @paths;
		1117
		1118	for (@$files) {
		1119	utf8::decode $_;
		1120	next if /\.(?:pl|pst)$/;
		1121	next unless /^$PATH_SEP/o;
		1122
		1123	push @paths, cf::map::normalise "~$pl/$_";
		1124	}
		1125
		1126	\@paths
1082	}	1127	}
1083		1128
1084	=item $player->ext_reply ($msgid, $msgtype, %msg)	1129	=item $player->ext_reply ($msgid, $msgtype, %msg)
1085		1130
1086	Sends an ext reply to the player.	1131	Sends an ext reply to the player.
1087		1132
1088	=cut	1133	=cut
1089		1134
1090	sub cf::player::ext_reply($$$%) {	1135	sub ext_reply($$$%) {
1091	my ($self, $id, %msg) = @_;	1136	my ($self, $id, %msg) = @_;
1092		1137
1093	$msg{msgid} = $id;	1138	$msg{msgid} = $id;
1094		1139
1095	$self->send ("ext " . to_json \%msg);	1140	$self->send ("ext " . cf::to_json \%msg);
1096	}	1141	}
		1142
		1143	package cf;
1097		1144
1098	=back	1145	=back
1099		1146
1100		1147
1101	=head3 cf::map	1148	=head3 cf::map
…		…
1107	package cf::map;	1154	package cf::map;
1108		1155
1109	use Fcntl;	1156	use Fcntl;
1110	use Coro::AIO;	1157	use Coro::AIO;
1111		1158
		1159	use overload
		1160	'""' => \&as_string,
		1161	fallback => 1;
		1162
1112	our $MAX_RESET = 3600;	1163	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1164	our $DEFAULT_RESET = 3000;
1114		1165
1115	sub generate_random_map {	1166	sub generate_random_map {
1116	my ($path, $rmp) = @_;	1167	my ($self, $rmp) = @_;
1117
1118	# mit "rum" bekleckern, nicht	1168	# mit "rum" bekleckern, nicht
1119	cf::map::_create_random_map	1169	$self->_create_random_map (
1120	$path,
1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1170	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1171	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1172	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1124	$rmp->{exit_on_final_map},	1173	$rmp->{exit_on_final_map},
1125	$rmp->{xsize}, $rmp->{ysize},	1174	$rmp->{xsize}, $rmp->{ysize},
1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1175	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1176	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1177	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1129	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1178	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1179	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1131	(cf::region::find $rmp->{region})	1180	(cf::region::find $rmp->{region}), $rmp->{custom}
		1181	)
		1182	}
		1183
		1184	=item cf::map->register ($regex, $prio)
		1185
		1186	Register a handler for the map path matching the given regex at the
		1187	givne priority (higher is better, built-in handlers have priority 0, the
		1188	default).
		1189
		1190	=cut
		1191
		1192	sub register {
		1193	my (undef, $regex, $prio) = @_;
		1194	my $pkg = caller;
		1195
		1196	no strict;
		1197	push @{"$pkg\::ISA"}, __PACKAGE__;
		1198
		1199	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1200	}
		1201
		1202	# also paths starting with '/'
		1203	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1204
		1205	sub thawer_merge {
		1206	my ($self, $merge) = @_;
		1207
		1208	# we have to keep some variables in memory intact
		1209	local $self->{path};
		1210	local $self->{load_path};
		1211	local $self->{deny_save};
		1212	local $self->{deny_reset};
		1213
		1214	$self->SUPER::thawer_merge ($merge);
		1215	}
		1216
		1217	sub normalise {
		1218	my ($path, $base) = @_;
		1219
		1220	$path = "$path"; # make sure its a string
		1221
		1222	$path =~ s/\.map$//;
		1223
		1224	# map plan:
		1225	#
		1226	# /! non-realised random map exit (special hack!)
		1227	# {... are special paths that are not being touched
		1228	# ?xxx/... are special absolute paths
		1229	# ?random/... random maps
		1230	# /... normal maps
		1231	# ~user/... per-player map of a specific user
		1232
		1233	$path =~ s/$PATH_SEP/\//go;
		1234
		1235	# treat it as relative path if it starts with
		1236	# something that looks reasonable
		1237	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1238	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1239
		1240	$base =~ s{[^/]+/?$}{};
		1241	$path = "$base/$path";
		1242	}
		1243
		1244	for ($path) {
		1245	redo if s{//}{/};
		1246	redo if s{/\.?/}{/};
		1247	redo if s{/[^/]+/\.\./}{/};
		1248	}
		1249
		1250	$path
		1251	}
		1252
		1253	sub new_from_path {
		1254	my (undef, $path, $base) = @_;
		1255
		1256	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1257
		1258	$path = normalise $path, $base;
		1259
		1260	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1261	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1262	my $self = bless cf::map::new, $pkg;
		1263	$self->{path} = $path; $self->path ($path);
		1264	$self->init; # pass $1 etc.
		1265	return $self;
		1266	}
		1267	}
		1268
		1269	Carp::carp "unable to resolve path '$path' (base '$base').";
		1270	()
		1271	}
		1272
		1273	sub init {
		1274	my ($self) = @_;
		1275
		1276	$self
		1277	}
		1278
		1279	sub as_string {
		1280	my ($self) = @_;
		1281
		1282	"$self->{path}"
		1283	}
		1284
		1285	# the displayed name, this is a one way mapping
		1286	sub visible_name {
		1287	&as_string
		1288	}
		1289
		1290	# the original (read-only) location
		1291	sub load_path {
		1292	my ($self) = @_;
		1293
		1294	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1295	}
		1296
		1297	# the temporary/swap location
		1298	sub save_path {
		1299	my ($self) = @_;
		1300
		1301	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1302	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1303	}
		1304
		1305	# the unique path, undef == no special unique path
		1306	sub uniq_path {
		1307	my ($self) = @_;
		1308
		1309	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1310	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1132	}	1311	}
1133		1312
1134	# and all this just because we cannot iterate over	1313	# and all this just because we cannot iterate over
1135	# all maps in C++...	1314	# all maps in C++...
1136	sub change_all_map_light {	1315	sub change_all_map_light {
…		…
1138		1317
1139	$_->change_map_light ($change)	1318	$_->change_map_light ($change)
1140	for grep $_->outdoor, values %cf::MAP;	1319	for grep $_->outdoor, values %cf::MAP;
1141	}	1320	}
1142		1321
		1322	sub unlink_save {
		1323	my ($self) = @_;
		1324
		1325	utf8::encode (my $save = $self->save_path);
		1326	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1327	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1328	}
		1329
1143	sub try_load_header($) {	1330	sub load_header_from($) {
1144	my ($path) = @_;	1331	my ($self, $path) = @_;
1145		1332
1146	utf8::encode $path;	1333	utf8::encode $path;
1147	aio_open $path, O_RDONLY, 0	1334	#aio_open $path, O_RDONLY, 0
		1335	# or return;
		1336
		1337	$self->_load_header ($path)
1148	or return;	1338	or return;
1149		1339
1150	my $map = cf::map::new	1340	$self->{load_path} = $path;
		1341
		1342	1
		1343	}
		1344
		1345	sub load_header_orig {
		1346	my ($self) = @_;
		1347
		1348	$self->load_header_from ($self->load_path)
		1349	}
		1350
		1351	sub load_header_temp {
		1352	my ($self) = @_;
		1353
		1354	$self->load_header_from ($self->save_path)
		1355	}
		1356
		1357	sub prepare_temp {
		1358	my ($self) = @_;
		1359
		1360	$self->last_access ((delete $self->{last_access})
		1361	|| $cf::RUNTIME); #d#
		1362	# safety
		1363	$self->{instantiate_time} = $cf::RUNTIME
		1364	if $self->{instantiate_time} > $cf::RUNTIME;
		1365	}
		1366
		1367	sub prepare_orig {
		1368	my ($self) = @_;
		1369
		1370	$self->{load_original} = 1;
		1371	$self->{instantiate_time} = $cf::RUNTIME;
		1372	$self->last_access ($cf::RUNTIME);
		1373	$self->instantiate;
		1374	}
		1375
		1376	sub load_header {
		1377	my ($self) = @_;
		1378
		1379	if ($self->load_header_temp) {
		1380	$self->prepare_temp;
		1381	} else {
		1382	$self->load_header_orig
1151	or return;	1383	or return;
		1384	$self->prepare_orig;
		1385	}
1152		1386
1153	# for better error messages only, will be overwritten	1387	1
1154	$map->path ($path);
1155
1156	$map->load_header ($path)
1157	or return;
1158
1159	$map->{load_path} = $path;
1160
1161	$map
1162	}	1388	}
1163		1389
1164	sub find;	1390	sub find;
1165	sub find {	1391	sub find {
1166	my ($path, $origin) = @_;	1392	my ($path, $origin) = @_;
1167		1393
1168	#warn "find<$path,$origin>\n";#d#
1169
1170	$path = new cf::path $path, $origin && $origin->path;	1394	$path = normalise $path, $origin && $origin->path;
1171	my $key = $path->as_string;
1172		1395
1173	cf::lock_wait "map_find:$key";	1396	cf::lock_wait "map_find:$path";
1174		1397
1175	$cf::MAP{$key} || do {	1398	$cf::MAP{$path} || do {
1176	my $guard = cf::lock_acquire "map_find:$key";	1399	my $guard = cf::lock_acquire "map_find:$path";
1177		1400	my $map = new_from_path cf::map $path
1178	# do it the slow way
1179	my $map = try_load_header $path->save_path;
1180
1181	Coro::cede;
1182
1183	if ($map) {
1184	$map->last_access ((delete $map->{last_access})
1185	|| $cf::RUNTIME); #d#
1186	# safety
1187	$map->{instantiate_time} = $cf::RUNTIME
1188	if $map->{instantiate_time} > $cf::RUNTIME;
1189	} else {
1190	if (my $rmp = $path->random_map_params) {
1191	$map = generate_random_map $key, $rmp;
1192	} else {
1193	$map = try_load_header $path->load_path;
1194	}
1195
1196	$map or return;	1401	or return;
1197		1402
1198	$map->{load_original} = 1;
1199	$map->{instantiate_time} = $cf::RUNTIME;
1200	$map->last_access ($cf::RUNTIME);
1201	$map->instantiate;
1202
1203	# per-player maps become, after loading, normal maps
1204	$map->per_player (0) if $path->{user_rel};
1205	}
1206
1207	$map->path ($key);
1208	$map->{path} = $path;
1209	$map->{last_save} = $cf::RUNTIME;	1403	$map->{last_save} = $cf::RUNTIME;
1210		1404
1211	Coro::cede;	1405	$map->load_header
		1406	or return;
1212		1407
1213	if ($map->should_reset) {	1408	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1409	# doing this can freeze the server in a sync job, obviously
		1410	#$cf::WAIT_FOR_TICK->wait;
1214	$map->reset;	1411	$map->reset;
1215	undef $guard;	1412	undef $guard;
1216	$map = find $path	1413	return find $path;
1217	or return;
1218	}	1414	}
1219		1415
1220	$cf::MAP{$key} = $map	1416	$cf::MAP{$path} = $map
1221	}	1417	}
1222	}	1418	}
		1419
		1420	sub pre_load { }
		1421	sub post_load { }
1223		1422
1224	sub load {	1423	sub load {
1225	my ($self) = @_;	1424	my ($self) = @_;
1226		1425
		1426	local $self->{deny_reset} = 1; # loading can take a long time
		1427
1227	my $path = $self->{path};	1428	my $path = $self->{path};
1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1429	my $guard = cf::lock_acquire "map_load:$path";
1229		1430
1230	return if $self->in_memory != cf::MAP_SWAPPED;	1431	return if $self->in_memory != cf::MAP_SWAPPED;
1231		1432
1232	$self->in_memory (cf::MAP_LOADING);	1433	$self->in_memory (cf::MAP_LOADING);
1233		1434
1234	$self->alloc;	1435	$self->alloc;
		1436
		1437	$self->pre_load;
		1438
1235	$self->load_objects ($self->{load_path}, 1)	1439	$self->_load_objects ($self->{load_path}, 1)
1236	or return;	1440	or return;
1237		1441
1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1442	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1239	if delete $self->{load_original};	1443	if delete $self->{load_original};
1240		1444
1241	if (my $uniq = $path->uniq_path) {	1445	if (my $uniq = $self->uniq_path) {
1242	utf8::encode $uniq;	1446	utf8::encode $uniq;
1243	if (aio_open $uniq, O_RDONLY, 0) {	1447	if (aio_open $uniq, O_RDONLY, 0) {
1244	$self->clear_unique_items;	1448	$self->clear_unique_items;
1245	$self->load_objects ($uniq, 0);	1449	$self->_load_objects ($uniq, 0);
1246	}	1450	}
1247	}	1451	}
1248		1452
1249	Coro::cede;	1453	Coro::cede;
1250		1454
1251	# now do the right thing for maps	1455	# now do the right thing for maps
1252	$self->link_multipart_objects;	1456	$self->link_multipart_objects;
1253		1457
1254	if ($self->{path}->is_style_map) {	1458	unless ($self->{deny_activate}) {
1255	$self->{deny_save} = 1;	1459	$self->decay_objects;
1256	$self->{deny_reset} = 1;
1257	} else {
1258	$self->fix_auto_apply;	1460	$self->fix_auto_apply;
1259	$self->decay_objects;
1260	$self->update_buttons;	1461	$self->update_buttons;
		1462	Coro::cede;
1261	$self->set_darkness_map;	1463	$self->set_darkness_map;
1262	$self->difficulty ($self->estimate_difficulty)	1464	$self->difficulty ($self->estimate_difficulty)
1263	unless $self->difficulty;	1465	unless $self->difficulty;
		1466	Coro::cede;
1264	$self->activate;	1467	$self->activate;
1265	}	1468	}
1266		1469
1267	Coro::cede;	1470	$self->post_load;
1268		1471
1269	$self->in_memory (cf::MAP_IN_MEMORY);	1472	$self->in_memory (cf::MAP_IN_MEMORY);
		1473	}
		1474
		1475	sub customise_for {
		1476	my ($self, $ob) = @_;
		1477
		1478	return find "~" . $ob->name . "/" . $self->{path}
		1479	if $self->per_player;
		1480
		1481	$self
		1482	}
		1483
		1484	# find and load all maps in the 3x3 area around a map
		1485	sub load_diag {
		1486	my ($map) = @_;
		1487
		1488	my @diag; # diagonal neighbours
		1489
		1490	for (0 .. 3) {
		1491	my $neigh = $map->tile_path ($_)
		1492	or next;
		1493	$neigh = find $neigh, $map
		1494	or next;
		1495	$neigh->load;
		1496
		1497	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1498	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1499	}
		1500
		1501	for (@diag) {
		1502	my $neigh = find @$_
		1503	or next;
		1504	$neigh->load;
		1505	}
1270	}	1506	}
1271		1507
1272	sub find_sync {	1508	sub find_sync {
1273	my ($path, $origin) = @_;	1509	my ($path, $origin) = @_;
1274		1510
1275	cf::sync_job {	1511	cf::sync_job { find $path, $origin }
1276	my $map = cf::map::find $path, $origin;
1277	$map
1278	}
1279	}	1512	}
1280		1513
1281	sub do_load_sync {	1514	sub do_load_sync {
1282	my ($map) = @_;	1515	my ($map) = @_;
1283		1516
1284	cf::sync_job { $map->load };	1517	cf::sync_job { $map->load };
1285	}	1518	}
1286		1519
		1520	our %MAP_PREFETCH;
		1521	our $MAP_PREFETCHER = undef;
		1522
		1523	sub find_async {
		1524	my ($path, $origin) = @_;
		1525
		1526	$path = normalise $path, $origin && $origin->{path};
		1527
		1528	if (my $map = $cf::MAP{$path}) {
		1529	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1530	}
		1531
		1532	undef $MAP_PREFETCH{$path};
		1533	$MAP_PREFETCHER ||= cf::async {
		1534	while (%MAP_PREFETCH) {
		1535	for my $path (keys %MAP_PREFETCH) {
		1536	my $map = find $path
		1537	or next;
		1538	$map->load;
		1539
		1540	delete $MAP_PREFETCH{$path};
		1541	}
		1542	}
		1543	undef $MAP_PREFETCHER;
		1544	};
		1545	$MAP_PREFETCHER->prio (6);
		1546
		1547	()
		1548	}
		1549
1287	sub save {	1550	sub save {
1288	my ($self) = @_;	1551	my ($self) = @_;
1289		1552
1290	my $lock = cf::lock_acquire "map_data:" . $self->path;	1553	my $lock = cf::lock_acquire "map_data:" . $self->path;
1291		1554
1292	$self->{last_save} = $cf::RUNTIME;	1555	$self->{last_save} = $cf::RUNTIME;
1293		1556
1294	return unless $self->dirty;	1557	return unless $self->dirty;
1295		1558
1296	my $save = $self->{path}->save_path; utf8::encode $save;	1559	my $save = $self->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1560	my $uniq = $self->uniq_path; utf8::encode $uniq;
1298		1561
1299	$self->{load_path} = $save;	1562	$self->{load_path} = $save;
1300		1563
1301	return if $self->{deny_save};	1564	return if $self->{deny_save};
1302		1565
1303	local $self->{last_access} = $self->last_access;#d#	1566	local $self->{last_access} = $self->last_access;#d#
1304		1567
		1568	cf::async {
		1569	$_->contr->save for $self->players;
		1570	};
		1571
1305	if ($uniq) {	1572	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1573	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);	1574	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {	1575	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1576	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}	1577	}
1311	}	1578	}
1312		1579
1313	sub swap_out {	1580	sub swap_out {
1314	my ($self) = @_;	1581	my ($self) = @_;
…		…
1328		1595
1329	sub reset_at {	1596	sub reset_at {
1330	my ($self) = @_;	1597	my ($self) = @_;
1331		1598
1332	# TODO: safety, remove and allow resettable per-player maps	1599	# TODO: safety, remove and allow resettable per-player maps
1333	return 1e99 if $self->{path}{user_rel};	1600	return 1e99 if $self->isa ("ext::map_per_player");#d#
1334	return 1e99 if $self->{deny_reset};	1601	return 1e99 if $self->{deny_reset};
1335		1602
1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1603	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1337	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1604	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1338		1605
…		…
1343	my ($self) = @_;	1610	my ($self) = @_;
1344		1611
1345	$self->reset_at <= $cf::RUNTIME	1612	$self->reset_at <= $cf::RUNTIME
1346	}	1613	}
1347		1614
1348	sub unlink_save {
1349	my ($self) = @_;
1350
1351	utf8::encode (my $save = $self->{path}->save_path);
1352	aioreq_pri 3; IO::AIO::aio_unlink $save;
1353	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1354	}
1355
1356	sub rename {
1357	my ($self, $new_path) = @_;
1358
1359	$self->unlink_save;
1360
1361	delete $cf::MAP{$self->path};
1362	$self->{path} = new cf::path $new_path;
1363	$self->path ($self->{path}->as_string);
1364	$cf::MAP{$self->path} = $self;
1365
1366	$self->save;
1367	}
1368
1369	sub reset {	1615	sub reset {
1370	my ($self) = @_;	1616	my ($self) = @_;
1371		1617
1372	my $lock = cf::lock_acquire "map_data:" . $self->path;	1618	my $lock = cf::lock_acquire "map_data:$self->{path}";
1373		1619
1374	return if $self->players;	1620	return if $self->players;
1375	return if $self->{path}{user_rel};#d#	1621	return if $self->isa ("ext::map_per_player");#d#
1376		1622
1377	warn "resetting map ", $self->path;#d#	1623	warn "resetting map ", $self->path;#d#
1378		1624
		1625	$self->in_memory (cf::MAP_SWAPPED);
		1626
		1627	# need to save uniques path
		1628	unless ($self->{deny_save}) {
		1629	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1630
		1631	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1632	if $uniq;
		1633	}
		1634
1379	delete $cf::MAP{$self->path};	1635	delete $cf::MAP{$self->path};
		1636
		1637	$self->clear;
1380		1638
1381	$_->clear_links_to ($self) for values %cf::MAP;	1639	$_->clear_links_to ($self) for values %cf::MAP;
1382		1640
1383	$self->unlink_save;	1641	$self->unlink_save;
1384	$self->destroy;	1642	$self->destroy;
…		…
1387	my $nuke_counter = "aaaa";	1645	my $nuke_counter = "aaaa";
1388		1646
1389	sub nuke {	1647	sub nuke {
1390	my ($self) = @_;	1648	my ($self) = @_;
1391		1649
		1650	delete $cf::MAP{$self->path};
		1651
		1652	$self->unlink_save;
		1653
		1654	bless $self, "cf::map";
		1655	delete $self->{deny_reset};
1392	$self->{deny_save} = 1;	1656	$self->{deny_save} = 1;
1393	$self->reset_timeout (1);	1657	$self->reset_timeout (1);
1394	$self->rename ("{nuke}/" . ($nuke_counter++));	1658	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1659
		1660	$cf::MAP{$self->path} = $self;
		1661
1395	$self->reset; # polite request, might not happen	1662	$self->reset; # polite request, might not happen
1396	}	1663	}
1397		1664
1398	sub customise_for {	1665	=item cf::map::unique_maps
1399	my ($map, $ob) = @_;
1400		1666
1401	if ($map->per_player) {	1667	Returns an arrayref of paths of all shared maps that have
1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1668	instantiated unique items. May block.
1403	}
1404		1669
1405	$map	1670	=cut
1406	}
1407		1671
1408	sub emergency_save {	1672	sub unique_maps() {
1409	my $freeze_guard = cf::freeze_mainloop;	1673	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1674	or return;
1410		1675
1411	warn "enter emergency map save\n";	1676	my @paths;
1412		1677
1413	cf::sync_job {	1678	for (@$files) {
1414	warn "begin emergency map save\n";	1679	utf8::decode $_;
1415	$_->save for values %cf::MAP;	1680	next if /\.pst$/;
		1681	next unless /^$PATH_SEP/o;
		1682
		1683	push @paths, cf::map::normalise $_;
1416	};	1684	}
1417		1685
1418	warn "end emergency map save\n";	1686	\@paths
1419	}	1687	}
1420		1688
1421	package cf;	1689	package cf;
1422		1690
1423	=back	1691	=back
1424		1692
		1693	=head3 cf::object
		1694
		1695	=cut
		1696
		1697	package cf::object;
		1698
		1699	=over 4
		1700
		1701	=item $ob->inv_recursive
		1702
		1703	Returns the inventory of the object _and_ their inventories, recursively.
		1704
		1705	=cut
		1706
		1707	sub inv_recursive_;
		1708	sub inv_recursive_ {
		1709	map { $_, inv_recursive_ $_->inv } @_
		1710	}
		1711
		1712	sub inv_recursive {
		1713	inv_recursive_ inv $_[0]
		1714	}
		1715
		1716	package cf;
		1717
		1718	=back
1425		1719
1426	=head3 cf::object::player	1720	=head3 cf::object::player
1427		1721
1428	=over 4	1722	=over 4
1429		1723
…		…
1469		1763
1470	=item $player_object->enter_link	1764	=item $player_object->enter_link
1471		1765
1472	Freezes the player and moves him/her to a special map (C<{link}>).	1766	Freezes the player and moves him/her to a special map (C<{link}>).
1473		1767
1474	The player should be reaosnably safe there for short amounts of time. You	1768	The player should be reasonably safe there for short amounts of time. You
1475	I<MUST> call C<leave_link> as soon as possible, though.	1769	I<MUST> call C<leave_link> as soon as possible, though.
1476		1770
		1771	Will never block.
		1772
1477	=item $player_object->leave_link ($map, $x, $y)	1773	=item $player_object->leave_link ($map, $x, $y)
1478		1774
1479	Moves the player out of the specila link map onto the given map. If the	1775	Moves the player out of the special C<{link}> map onto the specified
1480	map is not valid (or omitted), the player will be moved back to the	1776	map. If the map is not valid (or omitted), the player will be moved back
1481	location he/she was before the call to C<enter_link>, or, if that fails,	1777	to the location he/she was before the call to C<enter_link>, or, if that
1482	to the emergency map position.	1778	fails, to the emergency map position.
1483		1779
1484	Might block.	1780	Might block.
1485		1781
1486	=cut	1782	=cut
		1783
		1784	sub link_map {
		1785	unless ($LINK_MAP) {
		1786	$LINK_MAP = cf::map::find "{link}"
		1787	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1788	$LINK_MAP->load;
		1789	}
		1790
		1791	$LINK_MAP
		1792	}
1487		1793
1488	sub cf::object::player::enter_link {	1794	sub cf::object::player::enter_link {
1489	my ($self) = @_;	1795	my ($self) = @_;
1490		1796
1491	$self->deactivate_recursive;	1797	$self->deactivate_recursive;
1492		1798
1493	return if $self->map == $LINK_MAP;	1799	return if UNIVERSAL::isa $self->map, "ext::map_link";
1494		1800
1495	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1801	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1496	if $self->map;	1802	if $self->map;
1497		1803
1498	$self->enter_map ($LINK_MAP, 20, 20);	1804	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1499	}	1805	}
1500		1806
1501	sub cf::object::player::leave_link {	1807	sub cf::object::player::leave_link {
1502	my ($self, $map, $x, $y) = @_;	1808	my ($self, $map, $x, $y) = @_;
1503		1809
…		…
1521	# use -1 or undef as default coordinates, not 0, 0	1827	# use -1 or undef as default coordinates, not 0, 0
1522	($x, $y) = ($map->enter_x, $map->enter_y)	1828	($x, $y) = ($map->enter_x, $map->enter_y)
1523	if $x <=0 && $y <= 0;	1829	if $x <=0 && $y <= 0;
1524		1830
1525	$map->load;	1831	$map->load;
		1832	$map->load_diag;
1526		1833
		1834	return unless $self->contr->active;
1527	$self->activate_recursive;	1835	$self->activate_recursive;
		1836
		1837	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1528	$self->enter_map ($map, $x, $y);	1838	$self->enter_map ($map, $x, $y);
1529	}	1839	}
1530		1840
1531	cf::player->attach (	1841	cf::player->attach (
1532	on_logout => sub {	1842	on_logout => sub {
…		…
1543	my ($pl) = @_;	1853	my ($pl) = @_;
1544		1854
1545	# try to abort aborted map switching on player login :)	1855	# try to abort aborted map switching on player login :)
1546	# should happen only on crashes	1856	# should happen only on crashes
1547	if ($pl->ob->{_link_pos}) {	1857	if ($pl->ob->{_link_pos}) {
1548
1549	$pl->ob->enter_link;	1858	$pl->ob->enter_link;
1550	(Coro::async_pool {	1859	(async {
		1860	$pl->ob->reply (undef,
		1861	"There was an internal problem at your last logout, "
		1862	. "the server will try to bring you to your intended destination in a second.",
		1863	cf::NDI_RED);
1551	# we need this sleep as the login has a concurrent enter_exit running	1864	# we need this sleep as the login has a concurrent enter_exit running
1552	# and this sleep increases chances of the player not ending up in scorn	1865	# and this sleep increases chances of the player not ending up in scorn
1553	Coro::Timer::sleep 1;	1866	Coro::Timer::sleep 1;
1554	$pl->ob->leave_link;	1867	$pl->ob->leave_link;
1555	})->prio (2);	1868	})->prio (2);
…		…
1564	sub cf::object::player::goto {	1877	sub cf::object::player::goto {
1565	my ($self, $path, $x, $y) = @_;	1878	my ($self, $path, $x, $y) = @_;
1566		1879
1567	$self->enter_link;	1880	$self->enter_link;
1568		1881
1569	(Coro::async_pool {	1882	(async {
1570	$path = new cf::path $path;	1883	my $map = eval {
1571
1572	my $map = cf::map::find $path->as_string;	1884	my $map = cf::map::find $path;
1573	$map = $map->customise_for ($self) if $map;	1885	$map = $map->customise_for ($self) if $map;
1574		1886	$map
1575	# warn "entering ", $map->path, " at ($x, $y)\n"	1887	} or
1576	# if $map;
1577
1578	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1888	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1579		1889
1580	$self->leave_link ($map, $x, $y);	1890	$self->leave_link ($map, $x, $y);
1581	})->prio (1);	1891	})->prio (1);
1582	}	1892	}
1583		1893
…		…
1587		1897
1588	sub parse_random_map_params {	1898	sub parse_random_map_params {
1589	my ($spec) = @_;	1899	my ($spec) = @_;
1590		1900
1591	my $rmp = { # defaults	1901	my $rmp = { # defaults
1592	xsize => 10,	1902	xsize => (cf::rndm 15, 40),
1593	ysize => 10,	1903	ysize => (cf::rndm 15, 40),
		1904	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1905	#layout => string,
1594	};	1906	};
1595		1907
1596	for (split /\n/, $spec) {	1908	for (split /\n/, $spec) {
1597	my ($k, $v) = split /\s+/, $_, 2;	1909	my ($k, $v) = split /\s+/, $_, 2;
1598		1910
…		…
1602	$rmp	1914	$rmp
1603	}	1915	}
1604		1916
1605	sub prepare_random_map {	1917	sub prepare_random_map {
1606	my ($exit) = @_;	1918	my ($exit) = @_;
		1919
		1920	my $guard = cf::lock_acquire "exit_prepare:$exit";
1607		1921
1608	# all this does is basically replace the /! path by	1922	# all this does is basically replace the /! path by
1609	# a new random map path (?random/...) with a seed	1923	# a new random map path (?random/...) with a seed
1610	# that depends on the exit object	1924	# that depends on the exit object
1611		1925
1612	my $rmp = parse_random_map_params $exit->msg;	1926	my $rmp = parse_random_map_params $exit->msg;
1613		1927
1614	if ($exit->map) {	1928	if ($exit->map) {
1615	$rmp->{region} = $exit->map->region_name;	1929	$rmp->{region} = $exit->region->name;
1616	$rmp->{origin_map} = $exit->map->path;	1930	$rmp->{origin_map} = $exit->map->path;
1617	$rmp->{origin_x} = $exit->x;	1931	$rmp->{origin_x} = $exit->x;
1618	$rmp->{origin_y} = $exit->y;	1932	$rmp->{origin_y} = $exit->y;
1619	}	1933	}
1620		1934
1621	$rmp->{random_seed} ||= $exit->random_seed;	1935	$rmp->{random_seed} ||= $exit->random_seed;
1622		1936
1623	my $data = cf::to_json $rmp;	1937	my $data = cf::to_json $rmp;
1624	my $md5 = Digest::MD5::md5_hex $data;	1938	my $md5 = Digest::MD5::md5_hex $data;
		1939	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1625		1940
1626	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1941	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1627	aio_write $fh, 0, (length $data), $data, 0;	1942	aio_write $fh, 0, (length $data), $data, 0;
		1943	undef $fh;
		1944	aio_rename "$meta~", $meta;
1628		1945
1629	$exit->slaying ("?random/$md5");	1946	$exit->slaying ("?random/$md5");
1630	$exit->msg (undef);	1947	$exit->msg (undef);
1631	}	1948	}
1632	}	1949	}
…		…
1634	sub cf::object::player::enter_exit {	1951	sub cf::object::player::enter_exit {
1635	my ($self, $exit) = @_;	1952	my ($self, $exit) = @_;
1636		1953
1637	return unless $self->type == cf::PLAYER;	1954	return unless $self->type == cf::PLAYER;
1638		1955
		1956	if ($exit->slaying eq "/!") {
		1957	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1958	cf::sync_job { prepare_random_map $exit };
		1959	}
		1960
		1961	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1962	my $hp = $exit->stats->hp;
		1963	my $sp = $exit->stats->sp;
		1964
1639	$self->enter_link;	1965	$self->enter_link;
1640		1966
1641	(Coro::async_pool {	1967	(async {
1642	$self->deactivate_recursive; # just to be sure	1968	$self->deactivate_recursive; # just to be sure
1643	unless (eval {	1969	unless (eval {
1644	prepare_random_map $exit	1970	$self->goto ($slaying, $hp, $sp);
1645	if $exit->slaying eq "/!";
1646
1647	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1648	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1649		1971
1650	1;	1972	1;
1651	}) {	1973	}) {
1652	$self->message ("Something went wrong deep within the crossfire server. "	1974	$self->message ("Something went wrong deep within the crossfire server. "
1653	. "I'll try to bring you back to the map you were before. "	1975	. "I'll try to bring you back to the map you were before. "
1654	. "Please report this to the dungeon master",	1976	. "Please report this to the dungeon master!",
1655	cf::NDI_UNIQUE | cf::NDI_RED);	1977	cf::NDI_UNIQUE | cf::NDI_RED);
1656		1978
1657	warn "ERROR in enter_exit: $@";	1979	warn "ERROR in enter_exit: $@";
1658	$self->leave_link;	1980	$self->leave_link;
1659	}	1981	}
…		…
1714	# get handled first	2036	# get handled first
1715	my $queue = delete $ns->{query_queue}	2037	my $queue = delete $ns->{query_queue}
1716	or return; # be conservative, not sure how that can happen, but we saw a crash here	2038	or return; # be conservative, not sure how that can happen, but we saw a crash here
1717		2039
1718	(shift @$queue)->[1]->($msg);	2040	(shift @$queue)->[1]->($msg);
		2041	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1719		2042
1720	push @{ $ns->{query_queue} }, @$queue;	2043	push @{ $ns->{query_queue} }, @$queue;
1721		2044
1722	if (@{ $ns->{query_queue} } == @$queue) {	2045	if (@{ $ns->{query_queue} } == @$queue) {
1723	if (@$queue) {	2046	if (@$queue) {
…		…
1727	}	2050	}
1728	}	2051	}
1729	},	2052	},
1730	);	2053	);
1731		2054
1732	=item $client->coro (\&cb)	2055	=item $client->async (\&cb)
1733		2056
1734	Create a new coroutine, running the specified callback. The coroutine will	2057	Create a new coroutine, running the specified callback. The coroutine will
1735	be automatically cancelled when the client gets destroyed (e.g. on logout,	2058	be automatically cancelled when the client gets destroyed (e.g. on logout,
1736	or loss of connection).	2059	or loss of connection).
1737		2060
1738	=cut	2061	=cut
1739		2062
1740	sub cf::client::coro {	2063	sub cf::client::async {
1741	my ($self, $cb) = @_;	2064	my ($self, $cb) = @_;
1742		2065
1743	my $coro = &Coro::async_pool ($cb);	2066	my $coro = &Coro::async ($cb);
1744		2067
1745	$coro->on_destroy (sub {	2068	$coro->on_destroy (sub {
1746	delete $self->{_coro}{$coro+0};	2069	delete $self->{_coro}{$coro+0};
1747	});	2070	});
1748		2071
…		…
1884	The parameter C<$family> should best start with the name of the extension	2207	The parameter C<$family> should best start with the name of the extension
1885	using it, it should be unique.	2208	using it, it should be unique.
1886		2209
1887	=over 4	2210	=over 4
1888		2211
1889	=item $hashref = cf::db_get $family
1890
1891	Return a hashref for use by the extension C<$family>, which can be
1892	modified. After modifications, you have to call C<cf::db_dirty> or
1893	C<cf::db_sync>.
1894
1895	=item $value = cf::db_get $family => $key	2212	=item $value = cf::db_get $family => $key
1896		2213
1897	Returns a single value from the database	2214	Returns a single value from the database.
1898
1899	=item cf::db_put $family => $hashref
1900
1901	Stores the given family hashref into the database. Updates are delayed, if
1902	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1903		2215
1904	=item cf::db_put $family => $key => $value	2216	=item cf::db_put $family => $key => $value
1905		2217
1906	Stores the given C<$value> in the family hash. Updates are delayed, if you	2218	Stores the given C<$value> in the family.
1907	want the data to be synced to disk immediately, use C<cf::db_sync>.
1908
1909	=item cf::db_dirty
1910
1911	Marks the database as dirty, to be updated at a later time.
1912
1913	=item cf::db_sync
1914
1915	Immediately write the database to disk I<if it is dirty>.
1916		2219
1917	=cut	2220	=cut
1918		2221
1919	our $DB;	2222	our $DB;
1920		2223
1921	{	2224	sub db_init {
		2225	unless ($DB) {
		2226	$DB = BDB::db_create $DB_ENV;
		2227
		2228	cf::sync_job {
		2229	eval {
		2230	$DB->set_flags (BDB::CHKSUM);
		2231
		2232	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2233	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2234	cf::cleanup "db_open(db): $!" if $!;
		2235	};
		2236	cf::cleanup "db_open(db): $@" if $@;
		2237	};
		2238
1922	my $path = cf::localdir . "/database.pst";	2239	my $path = cf::localdir . "/database.pst";
		2240	if (stat $path) {
		2241	cf::sync_job {
		2242	my $pst = Storable::retrieve $path;
1923		2243
1924	sub db_load() {	2244	cf::db_put (board => data => $pst->{board});
1925	$DB = stat $path ? Storable::retrieve $path : { };	2245	cf::db_put (guildrules => data => $pst->{guildrules});
1926	}	2246	cf::db_put (rent => balance => $pst->{rent}{balance});
		2247	BDB::db_env_txn_checkpoint $DB_ENV;
1927		2248
1928	my $pid;	2249	unlink $path;
1929
1930	sub db_save() {
1931	waitpid $pid, 0 if $pid;
1932	if (0 == ($pid = fork)) {
1933	$DB->{_meta}{version} = 1;
1934	Storable::nstore $DB, "$path~";
1935	rename "$path~", $path;
1936	cf::_exit 0 if defined $pid;
1937	}	2250	};
1938	}
1939
1940	my $dirty;
1941
1942	sub db_sync() {
1943	db_save if $dirty;
1944	undef $dirty;
1945	}
1946
1947	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1948	db_sync;
1949	});
1950
1951	sub db_dirty() {
1952	$dirty = 1;
1953	$idle->start;
1954	}
1955
1956	sub db_get($;$) {
1957	@_ >= 2
1958	? $DB->{$_[0]}{$_[1]}
1959	: ($DB->{$_[0]} ||= { })
1960	}
1961
1962	sub db_put($$;$) {
1963	if (@_ >= 3) {
1964	$DB->{$_[0]}{$_[1]} = $_[2];
1965	} else {
1966	$DB->{$_[0]} = $_[1];
1967	}
1968	db_dirty;
1969	}
1970
1971	cf::global->attach (
1972	prio => 10000,
1973	on_cleanup => sub {
1974	db_sync;
1975	},	2251	}
1976	);	2252	}
		2253	}
		2254
		2255	sub db_get($$) {
		2256	my $key = "$_[0]/$_[1]";
		2257
		2258	cf::sync_job {
		2259	BDB::db_get $DB, undef, $key, my $data;
		2260
		2261	$! ? ()
		2262	: Compress::LZF::sthaw $data
		2263	}
		2264	}
		2265
		2266	sub db_put($$$) {
		2267	BDB::dbreq_pri 4;
		2268	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1977	}	2269	}
1978		2270
1979	#############################################################################	2271	#############################################################################
1980	# the server's main()	2272	# the server's init and main functions
		2273
		2274	sub load_faces {
		2275	my $path = sprintf "%s/faces", cf::datadir;
		2276
		2277	warn "loading faces from $path\n";
		2278
		2279	my $faces;
		2280	0 < aio_load $path, $faces
		2281	or die "$path: $!";
		2282
		2283	Coro::cede;
		2284	$faces = Storable::thaw $faces;
		2285	Coro::cede;
		2286
		2287	while (my ($face, $info) = each %$faces) {
		2288	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2289	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2290	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2291	Coro::cede;
		2292	}
		2293
		2294	1
		2295	}
		2296
		2297	sub reload_resources {
		2298	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2299	or die "unable to load regions file\n";#d#
		2300	load_faces
		2301	or die "unable to load faces\n";#d#
		2302	}
		2303
		2304	sub init {
		2305	reload_resources;
		2306	}
1981		2307
1982	sub cfg_load {	2308	sub cfg_load {
1983	open my $fh, "<:utf8", cf::confdir . "/config"	2309	open my $fh, "<:utf8", cf::confdir . "/config"
1984	or return;	2310	or return;
1985		2311
…		…
1991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2317	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
1992	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2318	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1993		2319
1994	if (exists $CFG{mlockall}) {	2320	if (exists $CFG{mlockall}) {
1995	eval {	2321	eval {
1996	$CFG{mlockall} ? &mlockall : &munlockall	2322	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1997	and die "WARNING: m(un)lockall failed: $!\n";	2323	and die "WARNING: m(un)lockall failed: $!\n";
1998	};	2324	};
1999	warn $@ if $@;	2325	warn $@ if $@;
2000	}	2326	}
2001	}	2327	}
2002		2328
2003	sub main {	2329	sub main {
2004	# we must not ever block the main coroutine	2330	# we must not ever block the main coroutine
2005	local $Coro::idle = sub {	2331	local $Coro::idle = sub {
2006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2332	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2007	Coro::async_pool { Event::one_event };	2333	(async {
		2334	Event::one_event;
		2335	})->prio (Coro::PRIO_MAX);
2008	};	2336	};
2009		2337
2010	cfg_load;	2338	cfg_load;
2011	db_load;	2339	db_init;
2012	load_extensions;	2340	load_extensions;
		2341
		2342	$TICK_WATCHER->start;
2013	Event::loop;	2343	Event::loop;
2014	}	2344	}
2015		2345
2016	#############################################################################	2346	#############################################################################
2017	# initialisation	2347	# initialisation and cleanup
		2348
		2349	# install some emergency cleanup handlers
		2350	BEGIN {
		2351	for my $signal (qw(INT HUP TERM)) {
		2352	Event->signal (
		2353	reentrant => 0,
		2354	data => WF_AUTOCANCEL,
		2355	signal => $signal,
		2356	prio => 0,
		2357	cb => sub {
		2358	cf::cleanup "SIG$signal";
		2359	},
		2360	);
		2361	}
		2362	}
		2363
		2364	sub emergency_save() {
		2365	my $freeze_guard = cf::freeze_mainloop;
		2366
		2367	warn "enter emergency perl save\n";
		2368
		2369	cf::sync_job {
		2370	# use a peculiar iteration method to avoid tripping on perl
		2371	# refcount bugs in for. also avoids problems with players
		2372	# and maps saved/destroyed asynchronously.
		2373	warn "begin emergency player save\n";
		2374	for my $login (keys %cf::PLAYER) {
		2375	my $pl = $cf::PLAYER{$login} or next;
		2376	$pl->valid or next;
		2377	$pl->save;
		2378	}
		2379	warn "end emergency player save\n";
		2380
		2381	warn "begin emergency map save\n";
		2382	for my $path (keys %cf::MAP) {
		2383	my $map = $cf::MAP{$path} or next;
		2384	$map->valid or next;
		2385	$map->save;
		2386	}
		2387	warn "end emergency map save\n";
		2388
		2389	warn "begin emergency database checkpoint\n";
		2390	BDB::db_env_txn_checkpoint $DB_ENV;
		2391	warn "end emergency database checkpoint\n";
		2392	};
		2393
		2394	warn "leave emergency perl save\n";
		2395	}
		2396
		2397	sub post_cleanup {
		2398	my ($make_core) = @_;
		2399
		2400	warn Carp::longmess "post_cleanup backtrace"
		2401	if $make_core;
		2402	}
2018		2403
2019	sub reload() {	2404	sub reload() {
2020	# can/must only be called in main	2405	# can/must only be called in main
2021	if ($Coro::current != $Coro::main) {	2406	if ($Coro::current != $Coro::main) {
2022	warn "can only reload from main coroutine\n";	2407	warn "can only reload from main coroutine";
2023	return;	2408	return;
2024	}	2409	}
2025		2410
2026	warn "reloading...";	2411	warn "reloading...";
2027		2412
2028	my $guard = freeze_mainloop;	2413	warn "entering sync_job";
		2414
		2415	cf::sync_job {
		2416	cf::write_runtime; # external watchdog should not bark
2029	cf::emergency_save;	2417	cf::emergency_save;
		2418	cf::write_runtime; # external watchdog should not bark
2030		2419
2031	eval {	2420	warn "syncing database to disk";
		2421	BDB::db_env_txn_checkpoint $DB_ENV;
		2422
2032	# if anything goes wrong in here, we should simply crash as we already saved	2423	# if anything goes wrong in here, we should simply crash as we already saved
2033		2424
2034	# cancel all watchers	2425	warn "cancelling all WF_AUTOCANCEL watchers";
2035	for (Event::all_watchers) {	2426	for (Event::all_watchers) {
2036	$_->cancel if $_->data & WF_AUTOCANCEL;	2427	$_->cancel if $_->data & WF_AUTOCANCEL;
2037	}	2428	}
2038		2429
		2430	warn "flushing outstanding aio requests";
		2431	for (;;) {
		2432	BDB::flush;
		2433	IO::AIO::flush;
		2434	Coro::cede;
		2435	last unless IO::AIO::nreqs || BDB::nreqs;
		2436	warn "iterate...";
		2437	}
		2438
		2439	++$RELOAD;
		2440
2039	# cancel all extension coros	2441	warn "cancelling all extension coros";
2040	$_->cancel for values %EXT_CORO;	2442	$_->cancel for values %EXT_CORO;
2041	%EXT_CORO = ();	2443	%EXT_CORO = ();
2042		2444
2043	# unload all extensions	2445	warn "removing commands";
2044	for (@exts) {	2446	%COMMAND = ();
		2447
		2448	warn "removing ext commands";
		2449	%EXTCMD = ();
		2450
		2451	warn "unloading/nuking all extensions";
		2452	for my $pkg (@EXTS) {
2045	warn "unloading <$_>";	2453	warn "... unloading $pkg";
2046	unload_extension $_;	2454
		2455	if (my $cb = $pkg->can ("unload")) {
		2456	eval {
		2457	$cb->($pkg);
		2458	1
		2459	} or warn "$pkg unloaded, but with errors: $@";
2047	}	2460	}
2048		2461
		2462	warn "... nuking $pkg";
		2463	Symbol::delete_package $pkg;
		2464	}
		2465
2049	# unload all modules loaded from $LIBDIR	2466	warn "unloading all perl modules loaded from $LIBDIR";
2050	while (my ($k, $v) = each %INC) {	2467	while (my ($k, $v) = each %INC) {
2051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2468	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2052		2469
2053	warn "removing <$k>";	2470	warn "... unloading $k";
2054	delete $INC{$k};	2471	delete $INC{$k};
2055		2472
2056	$k =~ s/\.pm$//;	2473	$k =~ s/\.pm$//;
2057	$k =~ s/\//::/g;	2474	$k =~ s/\//::/g;
2058		2475
…		…
2061	}	2478	}
2062		2479
2063	Symbol::delete_package $k;	2480	Symbol::delete_package $k;
2064	}	2481	}
2065		2482
2066	# sync database to disk
2067	cf::db_sync;
2068	IO::AIO::flush;
2069
2070	# get rid of safe::, as good as possible	2483	warn "getting rid of safe::, as good as possible";
2071	Symbol::delete_package "safe::$_"	2484	Symbol::delete_package "safe::$_"
2072	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2485	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2073		2486
2074	# remove register_script_function callbacks
2075	# TODO
2076
2077	# unload cf.pm "a bit"	2487	warn "unloading cf.pm \"a bit\"";
2078	delete $INC{"cf.pm"};	2488	delete $INC{"cf.pm"};
2079		2489
2080	# don't, removes xs symbols, too,	2490	# don't, removes xs symbols, too,
2081	# and global variables created in xs	2491	# and global variables created in xs
2082	#Symbol::delete_package __PACKAGE__;	2492	#Symbol::delete_package __PACKAGE__;
2083		2493
2084	# reload cf.pm	2494	warn "unload completed, starting to reload now";
		2495
2085	warn "reloading cf.pm";	2496	warn "reloading cf.pm";
2086	require cf;	2497	require cf;
2087	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2498	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2088		2499
2089	# load config and database again	2500	warn "loading config and database again";
2090	cf::cfg_load;	2501	cf::cfg_load;
2091	cf::db_load;
2092		2502
2093	# load extensions
2094	warn "load extensions";	2503	warn "loading extensions";
2095	cf::load_extensions;	2504	cf::load_extensions;
2096		2505
2097	# reattach attachments to objects	2506	warn "reattaching attachments to objects/players";
2098	warn "reattach";	2507	_global_reattach; # objects, sockets
2099	_global_reattach;	2508	warn "reattaching attachments to maps";
2100	};	2509	reattach $_ for values %MAP;
		2510	warn "reattaching attachments to players";
		2511	reattach $_ for values %PLAYER;
2101		2512
2102	if ($@) {	2513	warn "loading reloadable resources";
		2514	reload_resources;
		2515
		2516	warn "leaving sync_job";
		2517
		2518	1
		2519	} or do {
2103	warn $@;	2520	warn $@;
2104	warn "error while reloading, exiting.";	2521	warn "error while reloading, exiting.";
2105	exit 1;	2522	exit 1;
2106	}	2523	};
2107		2524
2108	warn "reloaded successfully";	2525	warn "reloaded";
2109	};	2526	};
2110		2527
2111	#############################################################################	2528	our $RELOAD_WATCHER; # used only during reload
2112
2113	unless ($LINK_MAP) {
2114	$LINK_MAP = cf::map::new;
2115
2116	$LINK_MAP->width (41);
2117	$LINK_MAP->height (41);
2118	$LINK_MAP->alloc;
2119	$LINK_MAP->path ("{link}");
2120	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2121	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2122
2123	# dirty hack because... archetypes are not yet loaded
2124	Event->timer (
2125	after => 2,
2126	cb => sub {
2127	$_[0]->w->cancel;
2128
2129	# provide some exits "home"
2130	my $exit = cf::object::new "exit";
2131
2132	$exit->slaying ($EMERGENCY_POSITION->[0]);
2133	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2134	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2135
2136	$LINK_MAP->insert ($exit->clone, 19, 19);
2137	$LINK_MAP->insert ($exit->clone, 19, 20);
2138	$LINK_MAP->insert ($exit->clone, 19, 21);
2139	$LINK_MAP->insert ($exit->clone, 20, 19);
2140	$LINK_MAP->insert ($exit->clone, 20, 21);
2141	$LINK_MAP->insert ($exit->clone, 21, 19);
2142	$LINK_MAP->insert ($exit->clone, 21, 20);
2143	$LINK_MAP->insert ($exit->clone, 21, 21);
2144
2145	$exit->destroy;
2146	});
2147
2148	$LINK_MAP->{deny_save} = 1;
2149	$LINK_MAP->{deny_reset} = 1;
2150
2151	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2152	}
2153
2154	register "<global>", __PACKAGE__;
2155		2529
2156	register_command "reload" => sub {	2530	register_command "reload" => sub {
2157	my ($who, $arg) = @_;	2531	my ($who, $arg) = @_;
2158		2532
2159	if ($who->flag (FLAG_WIZ)) {	2533	if ($who->flag (FLAG_WIZ)) {
2160	$who->message ("start of reload.");	2534	$who->message ("reloading server.");
		2535
		2536	# doing reload synchronously and two reloads happen back-to-back,
		2537	# coro crashes during coro_state_free->destroy here.
		2538
		2539	$RELOAD_WATCHER ||= Event->timer (
		2540	reentrant => 0,
		2541	after => 0,
		2542	data => WF_AUTOCANCEL,
		2543	cb => sub {
2161	reload;	2544	reload;
2162	$who->message ("end of reload.");	2545	undef $RELOAD_WATCHER;
		2546	},
		2547	);
2163	}	2548	}
2164	};	2549	};
2165		2550
2166	unshift @INC, $LIBDIR;	2551	unshift @INC, $LIBDIR;
		2552
		2553	my $bug_warning = 0;
2167		2554
2168	$TICK_WATCHER = Event->timer (	2555	$TICK_WATCHER = Event->timer (
2169	reentrant => 0,	2556	reentrant => 0,
		2557	parked => 1,
2170	prio => 0,	2558	prio => 0,
2171	at => $NEXT_TICK || $TICK,	2559	at => $NEXT_TICK || $TICK,
2172	data => WF_AUTOCANCEL,	2560	data => WF_AUTOCANCEL,
2173	cb => sub {	2561	cb => sub {
		2562	if ($Coro::current != $Coro::main) {
		2563	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2564	unless ++$bug_warning > 10;
		2565	return;
		2566	}
		2567
		2568	$NOW = Event::time;
		2569
2174	cf::server_tick; # one server iteration	2570	cf::server_tick; # one server iteration
2175	$RUNTIME += $TICK;	2571	$RUNTIME += $TICK;
2176	$NEXT_TICK += $TICK;	2572	$NEXT_TICK += $TICK;
		2573
		2574	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2575	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2576	Coro::async_pool {
		2577	write_runtime
		2578	or warn "ERROR: unable to write runtime file: $!";
		2579	};
		2580	}
		2581
		2582	$WAIT_FOR_TICK->broadcast;
		2583	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2584
		2585	# my $AFTER = Event::time;
		2586	# warn $AFTER - $NOW;#d#
2177		2587
2178	# if we are delayed by four ticks or more, skip them all	2588	# if we are delayed by four ticks or more, skip them all
2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2589	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2180		2590
2181	$TICK_WATCHER->at ($NEXT_TICK);	2591	$TICK_WATCHER->at ($NEXT_TICK);
2182	$TICK_WATCHER->start;	2592	$TICK_WATCHER->start;
2183	},	2593	},
2184	);	2594	);
2185		2595
		2596	{
2186	IO::AIO::max_poll_time $TICK * 0.2;	2597	BDB::max_poll_time $TICK * 0.1;
2187		2598	$BDB_POLL_WATCHER = Event->io (
2188	Event->io (	2599	reentrant => 0,
2189	fd => IO::AIO::poll_fileno,	2600	fd => BDB::poll_fileno,
2190	poll => 'r',	2601	poll => 'r',
2191	prio => 5,	2602	prio => 0,
2192	data => WF_AUTOCANCEL,
2193	cb => \&IO::AIO::poll_cb,
2194	);
2195
2196	Event->timer (
2197	data => WF_AUTOCANCEL,	2603	data => WF_AUTOCANCEL,
2198	after => 0,	2604	cb => \&BDB::poll_cb,
2199	interval => 10,	2605	);
2200	cb => sub {	2606	BDB::min_parallel 8;
2201	(Coro::unblock_sub {	2607
2202	write_runtime	2608	BDB::set_sync_prepare {
2203	or warn "ERROR: unable to write runtime file: $!";	2609	my $status;
		2610	my $current = $Coro::current;
		2611	(
		2612	sub {
		2613	$status = $!;
		2614	$current->ready; undef $current;
		2615	},
		2616	sub {
		2617	Coro::schedule while defined $current;
		2618	$! = $status;
		2619	},
		2620	)
		2621	};
		2622
		2623	unless ($DB_ENV) {
		2624	$DB_ENV = BDB::db_env_create;
		2625
		2626	cf::sync_job {
		2627	eval {
		2628	BDB::db_env_open
		2629	$DB_ENV,
		2630	$BDB_ENV_DIR,
		2631	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2632	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2633	0666;
		2634
		2635	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2636
		2637	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2638	$DB_ENV->set_lk_detect;
		2639	};
		2640
		2641	cf::cleanup "db_env_open(db): $@" if $@;
2204	})->();	2642	};
2205	},	2643	}
2206	);	2644	}
		2645
		2646	{
		2647	IO::AIO::min_parallel 8;
		2648
		2649	undef $Coro::AIO::WATCHER;
		2650	IO::AIO::max_poll_time $TICK * 0.1;
		2651	$AIO_POLL_WATCHER = Event->io (
		2652	reentrant => 0,
		2653	data => WF_AUTOCANCEL,
		2654	fd => IO::AIO::poll_fileno,
		2655	poll => 'r',
		2656	prio => 6,
		2657	cb => \&IO::AIO::poll_cb,
		2658	);
		2659	}
2207		2660
2208	END { cf::emergency_save }	2661	END { cf::emergency_save }
2209		2662
2210	1	2663	1
2211		2664

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