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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.132 by root, Thu Jan 4 01:35:56 2007 UTC vs.
Revision 1.187 by root, Sat Jan 20 21:06:52 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3 ();	13	use Coro 3.4 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use Data::Dumper;
20	use Digest::MD5;	21	use Digest::MD5;
21	use Fcntl;	22	use Fcntl;
22	use IO::AIO 2.31 ();	23	use IO::AIO 2.32 ();
23	use YAML::Syck ();	24	use YAML::Syck ();
24	use Time::HiRes;	25	use Time::HiRes;
25		26
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
27		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		30
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
30		33
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		35
35	our %COMMAND = ();	36	our %COMMAND = ();
36	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
38		43
39	our @EVENT;	44	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
41		46
42	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
44	our $NEXT_TICK;	51	our $NEXT_TICK;
45	our $NOW;	52	our $NOW;
46		53
47	our %CFG;	54	our %CFG;
48		55
49	our $UPTIME; $UPTIME ||= time;	56	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	57	our $RUNTIME;
51		58
		59	our %PLAYER; # all users
52	our %MAP; # all maps	60	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	61	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	62	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	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
		67	# used to convert map paths into valid unix filenames by replacing / by ∕
		68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		69
58	binmode STDOUT;	70	binmode STDOUT;
59	binmode STDERR;	71	binmode STDERR;
60		72
61	# read virtual server time, if available	73	# read virtual server time, if available
…		…
69	mkdir cf::localdir . "/" . cf::playerdir;	81	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	82	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	83	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	84	mkdir $RANDOM_MAPS;
73		85
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	86	our $EMERGENCY_POSITION;
77		87
78	#############################################################################	88	#############################################################################
79		89
80	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
…		…
105		115
106	=item %cf::CFG	116	=item %cf::CFG
107		117
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	from wherever your confdir points to.	119	from wherever your confdir points to.
		120
		121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		122
		123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		125	processing has been done. Call C<< ->wait >> on them to maximise the
		126	window of cpu time available, or simply to synchronise to the server tick.
110		127
111	=back	128	=back
112		129
113	=cut	130	=cut
114		131
…		…
118	utf8::encode $msg;	135	utf8::encode $msg;
119		136
120	$msg .= "\n"	137	$msg .= "\n"
121	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
122		139
123	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
124	};	141	};
125	}	142	}
126		143
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
146		163
147	$Event::DIED = sub {	164	$Event::DIED = sub {
148	warn "error in event callback: @_";	165	warn "error in event callback: @_";
149	};	166	};
150		167
151	my %ext_pkg;
152	my @exts;
153	my @hook;
154
155	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
156		169
157	=over 4	170	=over 4
158		171
		172	=item dumpval $ref
		173
159	=cut	174	=cut
		175
		176	sub dumpval {
		177	eval {
		178	local $SIG{__DIE__};
		179	my $d;
		180	if (1) {
		181	$d = new Data::Dumper([$_[0]], ["*var"]);
		182	$d->Terse(1);
		183	$d->Indent(2);
		184	$d->Quotekeys(0);
		185	$d->Useqq(1);
		186	#$d->Bless(...);
		187	$d->Seen($_[1]) if @_ > 1;
		188	$d = $d->Dump();
		189	}
		190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		191	$d
		192	} || "[unable to dump $_[0]: '$@']";
		193	}
160		194
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
162		196
163	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
164		198
…		…
180	sub to_json($) {	214	sub to_json($) {
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
183	}	217	}
184		218
185	=item my $guard = cf::guard { BLOCK }
186
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206
207	=item cf::lock_wait $string	219	=item cf::lock_wait $string
208		220
209	Wait until the given lock is available. See cf::lock_acquire.	221	Wait until the given lock is available. See cf::lock_acquire.
210		222
211	=item my $lock = cf::lock_acquire $string	223	=item my $lock = cf::lock_acquire $string
212		224
213	Wait until the given lock is available and then acquires it and returns	225	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	227	for example when the coroutine gets canceled), the lock is automatically
216	returned.	228	returned.
217		229
218	Lock names should begin with a unique identifier (for example, find_map	230	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	231	uses map_find and cf::map::load uses map_load).
220		232
221	=cut	233	=cut
222		234
223	our %LOCK;	235	our %LOCK;
224		236
…		…
238	# wait, to be sure we are not locked	250	# wait, to be sure we are not locked
239	lock_wait $key;	251	lock_wait $key;
240		252
241	$LOCK{$key} = [];	253	$LOCK{$key} = [];
242		254
243	cf::guard {	255	Coro::guard {
244	# wake up all waiters, to be on the safe side	256	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	257	$_->ready for @{ delete $LOCK{$key} };
246	}	258	}
247	}	259	}
248		260
		261	sub freeze_mainloop {
		262	return unless $TICK_WATCHER->is_active;
		263
		264	my $guard = Coro::guard {
		265	$TICK_WATCHER->start;
		266	$WRITE_RUNTIME_WATCHER->start;
		267	};
		268	$WRITE_RUNTIME_WATCHER->stop;
		269	$TICK_WATCHER->stop;
		270	$guard
		271	}
		272
249	=item cf::async { BLOCK }	273	=item cf::async { BLOCK }
250		274
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	275	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
253		278
254	=cut	279	=cut
255		280
256	sub async(&) {	281	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		282
265	=item cf::sync_job { BLOCK }	283	=item cf::sync_job { BLOCK }
266		284
267	The design of crossfire+ requires that the main coro ($Coro::main) is	285	The design of crossfire+ requires that the main coro ($Coro::main) is
268	always able to handle events or runnable, as crossfire+ is only partly	286	always able to handle events or runnable, as crossfire+ is only partly
…		…
282	# this is the main coro, too bad, we have to block	300	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	301	# till the operation succeeds, freezing the server :/
284		302
285	# TODO: use suspend/resume instead	303	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	304	# (but this is cancel-safe)
287	local $FREEZE = 1;	305	my $freeze_guard = freeze_mainloop;
288		306
289	my $busy = 1;	307	my $busy = 1;
290	my @res;	308	my @res;
291		309
292	(Coro::async {	310	(async {
293	@res = eval { $job->() };	311	@res = eval { $job->() };
294	warn $@ if $@;	312	warn $@ if $@;
295	undef $busy;	313	undef $busy;
296	})->prio (Coro::PRIO_MAX);	314	})->prio (Coro::PRIO_MAX);
297		315
298	while ($busy) {	316	while ($busy) {
299	Coro::cede_notself;	317	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	318	}
302		319
303	wantarray ? @res : $res[0]	320	wantarray ? @res : $res[0]
304	} else {	321	} else {
305	# we are in another coroutine, how wonderful, everything just works	322	# we are in another coroutine, how wonderful, everything just works
306		323
307	$job->()	324	$job->()
308	}	325	}
309	}	326	}
310		327
311	=item $coro = cf::coro { BLOCK }	328	=item $coro = cf::async_ext { BLOCK }
312		329
313	Creates and returns a new coro. This coro is automcatially being canceled	330	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	331	extension calling this is being unloaded.
315		332
316	=cut	333	=cut
317		334
318	sub coro(&) {	335	sub async_ext(&) {
319	my $cb = shift;	336	my $cb = shift;
320		337
321	my $coro = &cf::async ($cb);	338	my $coro = &Coro::async ($cb);
322		339
323	$coro->on_destroy (sub {	340	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	341	delete $EXT_CORO{$coro+0};
325	});	342	});
326	$EXT_CORO{$coro+0} = $coro;	343	$EXT_CORO{$coro+0} = $coro;
…		…
332	my $runtime = cf::localdir . "/runtime";	349	my $runtime = cf::localdir . "/runtime";
333		350
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
335	or return;	352	or return;
336		353
		354	my $value = $cf::RUNTIME + 90 + 10;
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	355	# 10 is the runtime save interval, for a monotonic clock
		356	# 60 allows for the watchdog to kill the server.
		357
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0	358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;	359	and return;
340		360
341	aio_fsync $fh	361	aio_fsync $fh
342	and return;	362	and return;
…		…
351	}	371	}
352		372
353	=back	373	=back
354		374
355	=cut	375	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		376
477	#############################################################################	377	#############################################################################
478		378
479	=head2 ATTACHABLE OBJECTS	379	=head2 ATTACHABLE OBJECTS
480		380
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	506	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	507	our @CB_MAP = ();
608		508
609	my %attachment;	509	my %attachment;
610		510
		511	sub cf::attachable::thawer_merge {
		512	# simply override everything except _meta
		513	local $_[0]{_meta};
		514	%{$_[0]} = %{$_[1]};
		515	}
		516
611	sub _attach_cb($$$$) {	517	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	518	my ($registry, $event, $prio, $cb) = @_;
613		519
614	use sort 'stable';	520	use sort 'stable';
615		521
…		…
786	# object support	692	# object support
787		693
788	sub reattach {	694	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	695	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	696	my ($obj) = @_;
		697
		698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		699
792	my $registry = $obj->registry;	700	my $registry = $obj->registry;
793		701
794	@$registry = ();	702	@$registry = ();
795		703
…		…
927	=cut	835	=cut
928		836
929	sub register_extcmd {	837	sub register_extcmd {
930	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
931		839
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	840	$EXTCMD{$name} = $cb;
936	}	841	}
937		842
938	cf::player->attach (	843	cf::player->attach (
939	on_command => sub {	844	on_command => sub {
940	my ($pl, $name, $params) = @_;	845	my ($pl, $name, $params) = @_;
…		…
953		858
954	my $msg = eval { from_json $buf };	859	my $msg = eval { from_json $buf };
955		860
956	if (ref $msg) {	861	if (ref $msg) {
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	863	if (my %reply = $cb->($pl, $msg)) {
959	$pl->ext_reply ($msg->{msgid}, %reply);	864	$pl->ext_reply ($msg->{msgid}, %reply);
960	}	865	}
961	}	866	}
962	} else {	867	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
965		870
966	cf::override;	871	cf::override;
967	},	872	},
968	);	873	);
969		874
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	875	sub load_extension {
977	my ($path) = @_;	876	my ($path) = @_;
978		877
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
980	my $base = $1;	879	my $base = $1;
981	my $pkg = $1;	880	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;	881	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";	882	$pkg = "ext::$pkg";
984		883
985	warn "loading '$path' into '$pkg'\n";	884	warn "... loading '$path' into '$pkg'\n";
986		885
987	open my $fh, "<:utf8", $path	886	open my $fh, "<:utf8", $path
988	or die "$path: $!";	887	or die "$path: $!";
989		888
990	my $source =	889	my $source =
991	"package $pkg; use strict; use utf8;\n"	890	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"	891	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })	892	. (do { local $/; <$fh> })
994	. "\n};\n1";	893	. "\n};\n1";
995		894
996	eval $source	895	unless (eval $source) {
997	or die $@ ? "$path: $@\n"	896	my $msg = $@ ? "$path: $@\n"
998	: "extension disabled.\n";	897	: "extension disabled.\n";
999		898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1000	push @exts, $pkg;	899	warn $@;
1001	$ext_pkg{$base} = $pkg;	900	warn "mandatory extension failed to load, exiting.\n";
1002		901	exit 1;
1003	# no strict 'refs';	902	}
1004	# @{"$pkg\::ISA"} = ext::;	903	die $@;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	904	}
1019		905
1020	# remove commands	906	push @EXTS, $pkg;
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}	907	}
1045		908
1046	sub load_extensions {	909	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {	910	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;	911	next unless -r $ext;
…		…
1052	} or warn "$ext not loaded: $@";	915	} or warn "$ext not loaded: $@";
1053	}	916	}
1054	}	917	}
1055		918
1056	#############################################################################	919	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093		920
1094	=head2 CORE EXTENSIONS	921	=head2 CORE EXTENSIONS
1095		922
1096	Functions and methods that extend core crossfire objects.	923	Functions and methods that extend core crossfire objects.
1097		924
		925	=cut
		926
		927	package cf::player;
		928
		929	use Coro::AIO;
		930
1098	=head3 cf::player	931	=head3 cf::player
1099		932
1100	=over 4	933	=over 4
1101		934
1102	=item cf::player::exists $login	935	=item cf::player::find $login
1103		936
1104	Returns true when the given account exists.	937	Returns the given player object, loading it if necessary (might block).
1105		938
1106	=cut	939	=cut
1107		940
1108	sub cf::player::exists($) {	941	sub playerdir($) {
1109	cf::player::find $_[0]	942	cf::localdir
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	943	. "/"
		944	. cf::playerdir
		945	. "/"
		946	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		947	}
		948
		949	sub path($) {
		950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		951
		952	(playerdir $login) . "/$login.pl"
		953	}
		954
		955	sub find_active($) {
		956	$cf::PLAYER{$_[0]}
		957	and $cf::PLAYER{$_[0]}->active
		958	and $cf::PLAYER{$_[0]}
		959	}
		960
		961	sub exists($) {
		962	my ($login) = @_;
		963
		964	$cf::PLAYER{$login}
		965	or cf::sync_job { !aio_stat path $login }
		966	}
		967
		968	sub find($) {
		969	return $cf::PLAYER{$_[0]} || do {
		970	my $login = $_[0];
		971
		972	my $guard = cf::lock_acquire "user_find:$login";
		973
		974	$cf::PLAYER{$_[0]} || do {
		975	my $pl = load_pl path $login
		976	or return;
		977	$cf::PLAYER{$login} = $pl
		978	}
		979	}
		980	}
		981
		982	sub save($) {
		983	my ($pl) = @_;
		984
		985	return if $pl->{deny_save};
		986
		987	my $path = path $pl;
		988	my $guard = cf::lock_acquire "user_save:$path";
		989
		990	return if $pl->{deny_save};
		991
		992	aio_mkdir playerdir $pl, 0770;
		993	$pl->{last_save} = $cf::RUNTIME;
		994
		995	$pl->save_pl ($path);
		996	Coro::cede;
		997	}
		998
		999	sub new($) {
		1000	my ($login) = @_;
		1001
		1002	my $self = create;
		1003
		1004	$self->ob->name ($login);
		1005	$self->{deny_save} = 1;
		1006
		1007	$cf::PLAYER{$login} = $self;
		1008
		1009	$self
		1010	}
		1011
		1012	=item $pl->quit_character
		1013
		1014	Nukes the player without looking back. If logged in, the connection will
		1015	be destroyed. May block for a long time.
		1016
		1017	=cut
		1018
		1019	sub quit_character {
		1020	my ($pl) = @_;
		1021
		1022	$pl->{deny_save} = 1;
		1023	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1024
		1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1026	$pl->deactivate;
		1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1028	$pl->ns->destroy if $pl->ns;
		1029
		1030	my $path = playerdir $pl;
		1031	my $temp = "$path~$cf::RUNTIME~deleting~";
		1032	aio_rename $path, $temp;
		1033	delete $cf::PLAYER{$pl->ob->name};
		1034	$pl->destroy;
		1035	IO::AIO::aio_rmtree $temp;
		1036	}
		1037
		1038	=item cf::player::list_logins
		1039
		1040	Returns am arrayref of all valid playernames in the system, can take a
		1041	while and may block, so not sync_job-capable, ever.
		1042
		1043	=cut
		1044
		1045	sub list_logins {
		1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1047	or return [];
		1048
		1049	my @logins;
		1050
		1051	for my $login (@$dirs) {
		1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1053	aio_read $fh, 0, 512, my $buf, 0 or next;
		1054	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1055
		1056	utf8::decode $login;
		1057	push @logins, $login;
		1058	}
		1059
		1060	\@logins
		1061	}
		1062
		1063	=item $player->maps
		1064
		1065	Returns an arrayref of map paths that are private for this
		1066	player. May block.
		1067
		1068	=cut
		1069
		1070	sub maps($) {
		1071	my ($pl) = @_;
		1072
		1073	my $files = aio_readdir playerdir $pl
		1074	or return;
		1075
		1076	my @paths;
		1077
		1078	for (@$files) {
		1079	utf8::decode $_;
		1080	next if /\.(?:pl|pst)$/;
		1081	next unless /^$PATH_SEP/o;
		1082
		1083	s/\.map$//;
		1084	push @paths, "~" . $pl->ob->name . "/" . $_;
		1085	}
		1086
		1087	\@paths
1111	}	1088	}
1112		1089
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1090	=item $player->ext_reply ($msgid, $msgtype, %msg)
1114		1091
1115	Sends an ext reply to the player.	1092	Sends an ext reply to the player.
1116		1093
1117	=cut	1094	=cut
1118		1095
1119	sub cf::player::ext_reply($$$%) {	1096	sub ext_reply($$$%) {
1120	my ($self, $id, %msg) = @_;	1097	my ($self, $id, %msg) = @_;
1121		1098
1122	$msg{msgid} = $id;	1099	$msg{msgid} = $id;
1123		1100
1124	$self->send ("ext " . to_json \%msg);	1101	$self->send ("ext " . cf::to_json \%msg);
1125	}	1102	}
		1103
		1104	package cf;
1126		1105
1127	=back	1106	=back
1128		1107
1129		1108
1130	=head3 cf::map	1109	=head3 cf::map
…		…
1136	package cf::map;	1115	package cf::map;
1137		1116
1138	use Fcntl;	1117	use Fcntl;
1139	use Coro::AIO;	1118	use Coro::AIO;
1140		1119
		1120	use overload
		1121	'""' => \&as_string,
		1122	fallback => 1;
		1123
1141	our $MAX_RESET = 7200;	1124	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1125	our $DEFAULT_RESET = 3000;
1143		1126
1144	sub generate_random_map {	1127	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1128	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1129	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1130	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1134	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1135	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})	1141	(cf::region::find $rmp->{region}), $rmp->{custom}
		1142	)
		1143	}
		1144
		1145	=item cf::map->register ($regex, $prio)
		1146
		1147	Register a handler for the map path matching the given regex at the
		1148	givne priority (higher is better, built-in handlers have priority 0, the
		1149	default).
		1150
		1151	=cut
		1152
		1153	sub register {
		1154	my (undef, $regex, $prio) = @_;
		1155	my $pkg = caller;
		1156
		1157	no strict;
		1158	push @{"$pkg\::ISA"}, __PACKAGE__;
		1159
		1160	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1161	}
		1162
		1163	# also paths starting with '/'
		1164	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1165
		1166	sub thawer_merge {
		1167	my ($self, $merge) = @_;
		1168
		1169	# we have to keep some variables in memory intact
		1170	local $self->{path};
		1171	local $self->{load_path};
		1172	local $self->{deny_save};
		1173	local $self->{deny_reset};
		1174
		1175	$self->SUPER::thawer_merge ($merge);
		1176	}
		1177
		1178	sub normalise {
		1179	my ($path, $base) = @_;
		1180
		1181	# map plan:
		1182	#
		1183	# /! non-realised random map exit (special hack!)
		1184	# {... are special paths that are not being touched
		1185	# ?xxx/... are special absolute paths
		1186	# ?random/... random maps
		1187	# /... normal maps
		1188	# ~user/... per-player map of a specific user
		1189
		1190	$path =~ s/$PATH_SEP/\//go;
		1191
		1192	# treat it as relative path if it starts with
		1193	# something that looks reasonable
		1194	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1195	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1196
		1197	$base =~ s{[^/]+/?$}{};
		1198	$path = "$base/$path";
		1199	}
		1200
		1201	for ($path) {
		1202	redo if s{//}{/};
		1203	redo if s{/\.?/}{/};
		1204	redo if s{/[^/]+/\.\./}{/};
		1205	}
		1206
		1207	$path
		1208	}
		1209
		1210	sub new_from_path {
		1211	my (undef, $path, $base) = @_;
		1212
		1213	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1214
		1215	$path = normalise $path, $base;
		1216
		1217	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1218	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1219	my $self = bless cf::map::new, $pkg;
		1220	$self->{path} = $path; $self->path ($path);
		1221	$self->init; # pass $1 etc.
		1222	return $self;
		1223	}
		1224	}
		1225
		1226	Carp::carp "unable to resolve path '$path'.";
		1227	()
		1228	}
		1229
		1230	sub init {
		1231	my ($self) = @_;
		1232
		1233	$self
		1234	}
		1235
		1236	sub as_string {
		1237	my ($self) = @_;
		1238
		1239	"$self->{path}"
		1240	}
		1241
		1242	# the displayed name, this is a one way mapping
		1243	sub visible_name {
		1244	&as_string
		1245	}
		1246
		1247	# the original (read-only) location
		1248	sub load_path {
		1249	my ($self) = @_;
		1250
		1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1252	}
		1253
		1254	# the temporary/swap location
		1255	sub save_path {
		1256	my ($self) = @_;
		1257
		1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1260	}
		1261
		1262	# the unique path, undef == no special unique path
		1263	sub uniq_path {
		1264	my ($self) = @_;
		1265
		1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1161	}	1268	}
1162		1269
1163	# and all this just because we cannot iterate over	1270	# and all this just because we cannot iterate over
1164	# all maps in C++...	1271	# all maps in C++...
1165	sub change_all_map_light {	1272	sub change_all_map_light {
…		…
1167		1274
1168	$_->change_map_light ($change)	1275	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1276	for grep $_->outdoor, values %cf::MAP;
1170	}	1277	}
1171		1278
		1279	sub unlink_save {
		1280	my ($self) = @_;
		1281
		1282	utf8::encode (my $save = $self->save_path);
		1283	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1284	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1285	}
		1286
1172	sub try_load_header($) {	1287	sub load_header_from($) {
1173	my ($path) = @_;	1288	my ($self, $path) = @_;
1174		1289
1175	utf8::encode $path;	1290	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1291	aio_open $path, O_RDONLY, 0
1177	or return;	1292	or return;
1178		1293
1179	my $map = cf::map::new	1294	$self->_load_header ($path)
1180	or return;	1295	or return;
1181		1296
1182	$map->load_header ($path)	1297	$self->{load_path} = $path;
		1298
		1299	1
		1300	}
		1301
		1302	sub load_orig {
		1303	my ($self) = @_;
		1304
		1305	$self->load_header_from ($self->load_path)
		1306	}
		1307
		1308	sub load_temp {
		1309	my ($self) = @_;
		1310
		1311	$self->load_header_from ($self->save_path)
		1312	}
		1313
		1314	sub load_header {
		1315	my ($self) = @_;
		1316
		1317	if ($self->load_temp) {
		1318	$self->last_access ((delete $self->{last_access})
		1319	|| $cf::RUNTIME); #d#
		1320	# safety
		1321	$self->{instantiate_time} = $cf::RUNTIME
		1322	if $self->{instantiate_time} > $cf::RUNTIME;
		1323	} else {
		1324	$self->load_orig
1183	or return;	1325	or return;
1184		1326
1185	$map->{load_path} = $path;	1327	$self->{load_original} = 1;
		1328	$self->{instantiate_time} = $cf::RUNTIME;
		1329	$self->last_access ($cf::RUNTIME);
		1330	$self->instantiate;
		1331	}
1186		1332
1187	$map	1333	1
1188	}	1334	}
1189		1335
1190	sub find_map;	1336	sub find;
1191	sub find_map {	1337	sub find {
1192	my ($path, $origin) = @_;	1338	my ($path, $origin) = @_;
1193		1339
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1340	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1341
1199	cf::lock_wait "map_find:$key";	1342	cf::lock_wait "map_find:$path";
1200		1343
1201	$cf::MAP{$key} || do {	1344	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1345	my $guard = cf::lock_acquire "map_find:$path";
1203		1346	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	$map->last_access ((delete $map->{last_access})
1209	|| $cf::RUNTIME); #d#
1210	# safety
1211	$map->{instantiate_time} = $cf::RUNTIME
1212	if $map->{instantiate_time} > $cf::RUNTIME;
1213	} else {
1214	if (my $rmp = $path->random_map_params) {
1215	$map = generate_random_map $key, $rmp;
1216	} else {
1217	$map = try_load_header $path->load_path;
1218	}
1219
1220	$map or return;	1347	or return;
1221		1348
1222	$map->{load_original} = 1;
1223	$map->{instantiate_time} = $cf::RUNTIME;
1224	$map->last_access ($cf::RUNTIME);
1225	$map->instantiate;
1226
1227	# per-player maps become, after loading, normal maps
1228	$map->per_player (0) if $path->{user_rel};
1229	}
1230
1231	$map->path ($key);
1232	$map->{path} = $path;
1233	$map->{last_save} = $cf::RUNTIME;	1349	$map->{last_save} = $cf::RUNTIME;
1234		1350
		1351	$map->load_header
		1352	or return;
		1353
1235	if ($map->should_reset) {	1354	if ($map->should_reset) {
		1355	# doing this can freeze the server in a sync job, obviously
		1356	#$cf::WAIT_FOR_TICK->wait;
1236	$map->reset;	1357	$map->reset;
1237	undef $guard;	1358	undef $guard;
1238	$map = find_map $path	1359	$map = find $path
1239	or return;	1360	or return;
1240	}	1361	}
1241		1362
1242	$cf::MAP{$key} = $map	1363	$cf::MAP{$path} = $map
1243	}	1364	}
1244	}	1365	}
1245		1366
1246	sub load {	1367	sub load {
1247	my ($self) = @_;	1368	my ($self) = @_;
1248		1369
1249	my $path = $self->{path};	1370	my $path = $self->{path};
1250	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1371	my $guard = cf::lock_acquire "map_load:$path";
1251		1372
1252	return if $self->in_memory != cf::MAP_SWAPPED;	1373	return if $self->in_memory != cf::MAP_SWAPPED;
1253		1374
1254	$self->in_memory (cf::MAP_LOADING);	1375	$self->in_memory (cf::MAP_LOADING);
1255		1376
1256	$self->alloc;	1377	$self->alloc;
1257	$self->load_objects ($self->{load_path}, 1)	1378	$self->_load_objects ($self->{load_path}, 1)
1258	or return;	1379	or return;
1259		1380
1260	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1381	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1261	if delete $self->{load_original};	1382	if delete $self->{load_original};
1262		1383
1263	if (my $uniq = $path->uniq_path) {	1384	if (my $uniq = $self->uniq_path) {
1264	utf8::encode $uniq;	1385	utf8::encode $uniq;
1265	if (aio_open $uniq, O_RDONLY, 0) {	1386	if (aio_open $uniq, O_RDONLY, 0) {
1266	$self->clear_unique_items;	1387	$self->clear_unique_items;
1267	$self->load_objects ($uniq, 0);	1388	$self->_load_objects ($uniq, 0);
1268	}	1389	}
1269	}	1390	}
		1391
		1392	Coro::cede;
1270		1393
1271	# now do the right thing for maps	1394	# now do the right thing for maps
1272	$self->link_multipart_objects;	1395	$self->link_multipart_objects;
1273		1396
1274	if ($self->{path}->is_style_map) {	1397	unless ($self->{deny_activate}) {
1275	$self->{deny_save} = 1;	1398	$self->decay_objects;
1276	$self->{deny_reset} = 1;
1277	} else {
1278	$self->fix_auto_apply;	1399	$self->fix_auto_apply;
1279	$self->decay_objects;
1280	$self->update_buttons;	1400	$self->update_buttons;
		1401	Coro::cede;
1281	$self->set_darkness_map;	1402	$self->set_darkness_map;
1282	$self->difficulty ($self->estimate_difficulty)	1403	$self->difficulty ($self->estimate_difficulty)
1283	unless $self->difficulty;	1404	unless $self->difficulty;
		1405	Coro::cede;
1284	$self->activate;	1406	$self->activate;
1285	}	1407	}
1286		1408
1287	$self->in_memory (cf::MAP_IN_MEMORY);	1409	$self->in_memory (cf::MAP_IN_MEMORY);
1288	}	1410	}
1289		1411
1290	sub load_map_sync {	1412	sub customise_for {
		1413	my ($self, $ob) = @_;
		1414
		1415	return find "~" . $ob->name . "/" . $self->{path}
		1416	if $self->per_player;
		1417
		1418	$self
		1419	}
		1420
		1421	# find and load all maps in the 3x3 area around a map
		1422	sub load_diag {
		1423	my ($map) = @_;
		1424
		1425	my @diag; # diagonal neighbours
		1426
		1427	for (0 .. 3) {
		1428	my $neigh = $map->tile_path ($_)
		1429	or next;
		1430	$neigh = find $neigh, $map
		1431	or next;
		1432	$neigh->load;
		1433
		1434	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1435	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1436	}
		1437
		1438	for (@diag) {
		1439	my $neigh = find @$_
		1440	or next;
		1441	$neigh->load;
		1442	}
		1443	}
		1444
		1445	sub find_sync {
1291	my ($path, $origin) = @_;	1446	my ($path, $origin) = @_;
1292		1447
1293	#warn "load_map_sync<$path, $origin>\n";#d#	1448	cf::sync_job { find $path, $origin }
		1449	}
1294		1450
1295	cf::sync_job {	1451	sub do_load_sync {
1296	my $map = cf::map::find_map $path, $origin	1452	my ($map) = @_;
1297	or return;	1453
		1454	cf::sync_job { $map->load };
		1455	}
		1456
		1457	our %MAP_PREFETCH;
		1458	our $MAP_PREFETCHER = undef;
		1459
		1460	sub find_async {
		1461	my ($path, $origin) = @_;
		1462
		1463	$path = normalise $path, $origin && $origin->{path};
		1464
		1465	if (my $map = $cf::MAP{$path}) {
		1466	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1467	}
		1468
		1469	undef $MAP_PREFETCH{$path};
		1470	$MAP_PREFETCHER ||= cf::async {
		1471	while (%MAP_PREFETCH) {
		1472	for my $path (keys %MAP_PREFETCH) {
		1473	my $map = find $path
		1474	or next;
1298	$map->load;	1475	$map->load;
1299	$map	1476
		1477	delete $MAP_PREFETCH{$path};
		1478	}
		1479	}
		1480	undef $MAP_PREFETCHER;
1300	}	1481	};
		1482
		1483	()
1301	}	1484	}
1302		1485
1303	sub save {	1486	sub save {
1304	my ($self) = @_;	1487	my ($self) = @_;
1305		1488
		1489	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1490
1306	$self->{last_save} = $cf::RUNTIME;	1491	$self->{last_save} = $cf::RUNTIME;
1307		1492
1308	return unless $self->dirty;	1493	return unless $self->dirty;
1309		1494
1310	my $save = $self->{path}->save_path; utf8::encode $save;	1495	my $save = $self->save_path; utf8::encode $save;
1311	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1496	my $uniq = $self->uniq_path; utf8::encode $uniq;
1312		1497
1313	$self->{load_path} = $save;	1498	$self->{load_path} = $save;
1314		1499
1315	return if $self->{deny_save};	1500	return if $self->{deny_save};
1316		1501
1317	local $self->{last_access} = $self->last_access;#d#	1502	local $self->{last_access} = $self->last_access;#d#
1318		1503
		1504	cf::async {
		1505	$_->contr->save for $self->players;
		1506	};
		1507
1319	if ($uniq) {	1508	if ($uniq) {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1509	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1321	$self->save_objects ($uniq, cf::IO_UNIQUES);	1510	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1322	} else {	1511	} else {
1323	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1512	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1324	}	1513	}
1325	}	1514	}
1326		1515
1327	sub swap_out {	1516	sub swap_out {
1328	my ($self) = @_;	1517	my ($self) = @_;
1329		1518
1330	# save first because save cedes	1519	# save first because save cedes
1331	$self->save;	1520	$self->save;
		1521
		1522	my $lock = cf::lock_acquire "map_data:" . $self->path;
1332		1523
1333	return if $self->players;	1524	return if $self->players;
1334	return if $self->in_memory != cf::MAP_IN_MEMORY;	1525	return if $self->in_memory != cf::MAP_IN_MEMORY;
1335	return if $self->{deny_save};	1526	return if $self->{deny_save};
1336		1527
…		…
1340		1531
1341	sub reset_at {	1532	sub reset_at {
1342	my ($self) = @_;	1533	my ($self) = @_;
1343		1534
1344	# TODO: safety, remove and allow resettable per-player maps	1535	# TODO: safety, remove and allow resettable per-player maps
1345	return 1e99 if $self->{path}{user_rel};	1536	return 1e99 if $self->isa ("ext::map_per_player");#d#
1346	return 1e99 if $self->{deny_reset};	1537	return 1e99 if $self->{deny_reset};
1347		1538
1348	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1539	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1349	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1540	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1350		1541
…		…
1355	my ($self) = @_;	1546	my ($self) = @_;
1356		1547
1357	$self->reset_at <= $cf::RUNTIME	1548	$self->reset_at <= $cf::RUNTIME
1358	}	1549	}
1359		1550
1360	sub unlink_save {
1361	my ($self) = @_;
1362
1363	utf8::encode (my $save = $self->{path}->save_path);
1364	aioreq_pri 3; IO::AIO::aio_unlink $save;
1365	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1366	}
1367
1368	sub rename {
1369	my ($self, $new_path) = @_;
1370
1371	$self->unlink_save;
1372
1373	delete $cf::MAP{$self->path};
1374	$self->{path} = new cf::path $new_path;
1375	$self->path ($self->{path}->as_string);
1376	$cf::MAP{$self->path} = $self;
1377
1378	$self->save;
1379	}
1380
1381	sub reset {	1551	sub reset {
1382	my ($self) = @_;	1552	my ($self) = @_;
1383		1553
		1554	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1555
1384	return if $self->players;	1556	return if $self->players;
1385	return if $self->{path}{user_rel};#d#	1557	return if $self->isa ("ext::map_per_player");#d#
1386		1558
1387	warn "resetting map ", $self->path;#d#	1559	warn "resetting map ", $self->path;#d#
1388		1560
1389	delete $cf::MAP{$self->path};	1561	delete $cf::MAP{$self->path};
		1562
		1563	$self->in_memory (cf::MAP_SWAPPED);
		1564	$self->clear;
1390		1565
1391	$_->clear_links_to ($self) for values %cf::MAP;	1566	$_->clear_links_to ($self) for values %cf::MAP;
1392		1567
1393	$self->unlink_save;	1568	$self->unlink_save;
1394	$self->destroy;	1569	$self->destroy;
…		…
1397	my $nuke_counter = "aaaa";	1572	my $nuke_counter = "aaaa";
1398		1573
1399	sub nuke {	1574	sub nuke {
1400	my ($self) = @_;	1575	my ($self) = @_;
1401		1576
		1577	delete $cf::MAP{$self->path};
		1578
		1579	$self->unlink_save;
		1580
		1581	bless $self, "cf::map";
		1582	delete $self->{deny_reset};
1402	$self->{deny_save} = 1;	1583	$self->{deny_save} = 1;
1403	$self->reset_timeout (1);	1584	$self->reset_timeout (1);
1404	$self->rename ("{nuke}/" . ($nuke_counter++));	1585	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1586
		1587	$cf::MAP{$self->path} = $self;
		1588
1405	$self->reset; # polite request, might not happen	1589	$self->reset; # polite request, might not happen
1406	}	1590	}
1407		1591
1408	sub customise_for {	1592	=item cf::map::unique_maps
1409	my ($map, $ob) = @_;
1410		1593
1411	if ($map->per_player) {	1594	Returns an arrayref of paths of all shared maps that have
1412	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1595	instantiated unique items. May block.
1413	}
1414		1596
1415	$map	1597	=cut
1416	}
1417		1598
1418	sub emergency_save {	1599	sub unique_maps() {
1419	local $cf::FREEZE = 1;	1600	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1601	or return;
1420		1602
1421	warn "enter emergency map save\n";	1603	my @paths;
1422		1604
1423	cf::sync_job {	1605	for (@$files) {
1424	warn "begin emergency map save\n";	1606	utf8::decode $_;
1425	$_->save for values %cf::MAP;	1607	next if /\.pst$/;
		1608	next unless /^$PATH_SEP/o;
		1609
		1610	s/\.map$//;
		1611	push @paths, $_;
1426	};	1612	}
1427		1613
1428	warn "end emergency map save\n";	1614	\@paths
1429	}	1615	}
1430		1616
1431	package cf;	1617	package cf;
1432		1618
1433	=back	1619	=back
1434		1620
		1621	=head3 cf::object
		1622
		1623	=cut
		1624
		1625	package cf::object;
		1626
		1627	=over 4
		1628
		1629	=item $ob->inv_recursive
		1630
		1631	Returns the inventory of the object _and_ their inventories, recursively.
		1632
		1633	=cut
		1634
		1635	sub inv_recursive_;
		1636	sub inv_recursive_ {
		1637	map { $_, inv_recursive_ $_->inv } @_
		1638	}
		1639
		1640	sub inv_recursive {
		1641	inv_recursive_ inv $_[0]
		1642	}
		1643
		1644	package cf;
		1645
		1646	=back
1435		1647
1436	=head3 cf::object::player	1648	=head3 cf::object::player
1437		1649
1438	=over 4	1650	=over 4
1439		1651
…		…
1479		1691
1480	=item $player_object->enter_link	1692	=item $player_object->enter_link
1481		1693
1482	Freezes the player and moves him/her to a special map (C<{link}>).	1694	Freezes the player and moves him/her to a special map (C<{link}>).
1483		1695
1484	The player should be reaosnably safe there for short amounts of time. You	1696	The player should be reasonably safe there for short amounts of time. You
1485	I<MUST> call C<leave_link> as soon as possible, though.	1697	I<MUST> call C<leave_link> as soon as possible, though.
1486		1698
		1699	Will never block.
		1700
1487	=item $player_object->leave_link ($map, $x, $y)	1701	=item $player_object->leave_link ($map, $x, $y)
1488		1702
1489	Moves the player out of the specila link map onto the given map. If the	1703	Moves the player out of the special C<{link}> map onto the specified
1490	map is not valid (or omitted), the player will be moved back to the	1704	map. If the map is not valid (or omitted), the player will be moved back
1491	location he/she was before the call to C<enter_link>, or, if that fails,	1705	to the location he/she was before the call to C<enter_link>, or, if that
1492	to the emergency map position.	1706	fails, to the emergency map position.
1493		1707
1494	Might block.	1708	Might block.
1495		1709
1496	=cut	1710	=cut
		1711
		1712	sub link_map {
		1713	unless ($LINK_MAP) {
		1714	$LINK_MAP = cf::map::find "{link}"
		1715	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1716	$LINK_MAP->load;
		1717	}
		1718
		1719	$LINK_MAP
		1720	}
1497		1721
1498	sub cf::object::player::enter_link {	1722	sub cf::object::player::enter_link {
1499	my ($self) = @_;	1723	my ($self) = @_;
1500		1724
1501	$self->deactivate_recursive;	1725	$self->deactivate_recursive;
1502		1726
1503	return if $self->map == $LINK_MAP;	1727	return if UNIVERSAL::isa $self->map, "ext::map_link";
1504		1728
1505	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1729	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1506	if $self->map;	1730	if $self->map;
1507		1731
1508	$self->enter_map ($LINK_MAP, 20, 20);	1732	$self->enter_map ($LINK_MAP || link_map, 20, 20);
1509	}	1733	}
1510		1734
1511	sub cf::object::player::leave_link {	1735	sub cf::object::player::leave_link {
1512	my ($self, $map, $x, $y) = @_;	1736	my ($self, $map, $x, $y) = @_;
1513		1737
1514	my $link_pos = delete $self->{_link_pos};	1738	my $link_pos = delete $self->{_link_pos};
1515		1739
1516	unless ($map) {	1740	unless ($map) {
1517	# restore original map position	1741	# restore original map position
1518	($map, $x, $y) = @{ $link_pos || [] };	1742	($map, $x, $y) = @{ $link_pos || [] };
1519	$map = cf::map::find_map $map;	1743	$map = cf::map::find $map;
1520		1744
1521	unless ($map) {	1745	unless ($map) {
1522	($map, $x, $y) = @$EMERGENCY_POSITION;	1746	($map, $x, $y) = @$EMERGENCY_POSITION;
1523	$map = cf::map::find_map $map	1747	$map = cf::map::find $map
1524	or die "FATAL: cannot load emergency map\n";	1748	or die "FATAL: cannot load emergency map\n";
1525	}	1749	}
1526	}	1750	}
1527		1751
1528	($x, $y) = (-1, -1)	1752	($x, $y) = (-1, -1)
…		…
1531	# use -1 or undef as default coordinates, not 0, 0	1755	# use -1 or undef as default coordinates, not 0, 0
1532	($x, $y) = ($map->enter_x, $map->enter_y)	1756	($x, $y) = ($map->enter_x, $map->enter_y)
1533	if $x <=0 && $y <= 0;	1757	if $x <=0 && $y <= 0;
1534		1758
1535	$map->load;	1759	$map->load;
		1760	$map->load_diag;
1536		1761
		1762	return unless $self->contr->active;
1537	$self->activate_recursive;	1763	$self->activate_recursive;
1538	$self->enter_map ($map, $x, $y);	1764	$self->enter_map ($map, $x, $y);
1539	}	1765	}
1540		1766
1541	cf::player->attach (	1767	cf::player->attach (
…		…
1554		1780
1555	# try to abort aborted map switching on player login :)	1781	# try to abort aborted map switching on player login :)
1556	# should happen only on crashes	1782	# should happen only on crashes
1557	if ($pl->ob->{_link_pos}) {	1783	if ($pl->ob->{_link_pos}) {
1558	$pl->ob->enter_link;	1784	$pl->ob->enter_link;
1559	cf::async {	1785	(async {
1560	# we need this sleep as the login has a concurrent enter_exit running	1786	# we need this sleep as the login has a concurrent enter_exit running
1561	# and this sleep increases chances of the player not ending up in scorn	1787	# and this sleep increases chances of the player not ending up in scorn
		1788	$pl->ob->reply (undef,
		1789	"There was an internal problem at your last logout, "
		1790	. "the server will try to bring you to your intended destination in a second.",
		1791	cf::NDI_RED);
1562	Coro::Timer::sleep 1;	1792	Coro::Timer::sleep 1;
1563	$pl->ob->leave_link;	1793	$pl->ob->leave_link;
1564	};	1794	})->prio (2);
1565	}	1795	}
1566	},	1796	},
1567	);	1797	);
1568		1798
1569	=item $player_object->goto_map ($path, $x, $y)	1799	=item $player_object->goto ($path, $x, $y)
1570		1800
1571	=cut	1801	=cut
1572		1802
1573	sub cf::object::player::goto_map {	1803	sub cf::object::player::goto {
1574	my ($self, $path, $x, $y) = @_;	1804	my ($self, $path, $x, $y) = @_;
1575		1805
1576	$self->enter_link;	1806	$self->enter_link;
1577		1807
1578	(cf::async {	1808	(async {
1579	$path = new cf::path $path;
1580
1581	my $map = cf::map::find_map $path->as_string;	1809	my $map = cf::map::find $path;
1582	$map = $map->customise_for ($self) if $map;	1810	$map = $map->customise_for ($self) if $map;
1583		1811
1584	# warn "entering ", $map->path, " at ($x, $y)\n"	1812	# warn "entering ", $map->path, " at ($x, $y)\n"
1585	# if $map;	1813	# if $map;
1586		1814
1587	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1815	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1588		1816
1589	$self->leave_link ($map, $x, $y);	1817	$self->leave_link ($map, $x, $y);
1590	})->prio (1);	1818	})->prio (1);
1591	}	1819	}
1592		1820
…		…
1596		1824
1597	sub parse_random_map_params {	1825	sub parse_random_map_params {
1598	my ($spec) = @_;	1826	my ($spec) = @_;
1599		1827
1600	my $rmp = { # defaults	1828	my $rmp = { # defaults
1601	xsize => 10,	1829	xsize => (cf::rndm 15, 40),
1602	ysize => 10,	1830	ysize => (cf::rndm 15, 40),
		1831	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1832	#layout => string,
1603	};	1833	};
1604		1834
1605	for (split /\n/, $spec) {	1835	for (split /\n/, $spec) {
1606	my ($k, $v) = split /\s+/, $_, 2;	1836	my ($k, $v) = split /\s+/, $_, 2;
1607		1837
…		…
1611	$rmp	1841	$rmp
1612	}	1842	}
1613		1843
1614	sub prepare_random_map {	1844	sub prepare_random_map {
1615	my ($exit) = @_;	1845	my ($exit) = @_;
		1846
		1847	my $guard = cf::lock_acquire "exit_prepare:$exit";
1616		1848
1617	# all this does is basically replace the /! path by	1849	# all this does is basically replace the /! path by
1618	# a new random map path (?random/...) with a seed	1850	# a new random map path (?random/...) with a seed
1619	# that depends on the exit object	1851	# that depends on the exit object
1620		1852
…		…
1629		1861
1630	$rmp->{random_seed} ||= $exit->random_seed;	1862	$rmp->{random_seed} ||= $exit->random_seed;
1631		1863
1632	my $data = cf::to_json $rmp;	1864	my $data = cf::to_json $rmp;
1633	my $md5 = Digest::MD5::md5_hex $data;	1865	my $md5 = Digest::MD5::md5_hex $data;
		1866	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1634		1867
1635	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1868	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1636	aio_write $fh, 0, (length $data), $data, 0;	1869	aio_write $fh, 0, (length $data), $data, 0;
		1870	undef $fh;
		1871	aio_rename "$meta~", $meta;
1637		1872
1638	$exit->slaying ("?random/$md5");	1873	$exit->slaying ("?random/$md5");
1639	$exit->msg (undef);	1874	$exit->msg (undef);
1640	}	1875	}
1641	}	1876	}
…		…
1645		1880
1646	return unless $self->type == cf::PLAYER;	1881	return unless $self->type == cf::PLAYER;
1647		1882
1648	$self->enter_link;	1883	$self->enter_link;
1649		1884
1650	(cf::async {	1885	(async {
		1886	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	1887	unless (eval {
1652	prepare_random_map $exit	1888	prepare_random_map $exit
1653	if $exit->slaying eq "/!";	1889	if $exit->slaying eq "/!";
1654		1890
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	1891	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	1892	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1657		1893
1658	1;	1894	1;
1659	}) {	1895	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	1896	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "I'll try to bring you back to the map you were before. "	1897	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	1898	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	1899	cf::NDI_UNIQUE | cf::NDI_RED);
1664		1900
1665	warn "ERROR in enter_exit: $@";	1901	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	1902	$self->leave_link;
1667	}	1903	}
…		…
1735	}	1971	}
1736	}	1972	}
1737	},	1973	},
1738	);	1974	);
1739		1975
1740	=item $client->coro (\&cb)	1976	=item $client->async (\&cb)
1741		1977
1742	Create a new coroutine, running the specified callback. The coroutine will	1978	Create a new coroutine, running the specified callback. The coroutine will
1743	be automatically cancelled when the client gets destroyed (e.g. on logout,	1979	be automatically cancelled when the client gets destroyed (e.g. on logout,
1744	or loss of connection).	1980	or loss of connection).
1745		1981
1746	=cut	1982	=cut
1747		1983
1748	sub cf::client::coro {	1984	sub cf::client::async {
1749	my ($self, $cb) = @_;	1985	my ($self, $cb) = @_;
1750		1986
1751	my $coro = &cf::async ($cb);	1987	my $coro = &Coro::async ($cb);
1752		1988
1753	$coro->on_destroy (sub {	1989	$coro->on_destroy (sub {
1754	delete $self->{_coro}{$coro+0};	1990	delete $self->{_coro}{$coro+0};
1755	});	1991	});
1756		1992
…		…
1950	sub db_sync() {	2186	sub db_sync() {
1951	db_save if $dirty;	2187	db_save if $dirty;
1952	undef $dirty;	2188	undef $dirty;
1953	}	2189	}
1954		2190
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2191	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;	2192	db_sync;
1957	});	2193	});
1958		2194
1959	sub db_dirty() {	2195	sub db_dirty() {
1960	$dirty = 1;	2196	$dirty = 1;
…		…
1994	local $/;	2230	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	2231	*CFG = YAML::Syck::Load <$fh>;
1996		2232
1997	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2233	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1998		2234
		2235	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2236	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2237
1999	if (exists $CFG{mlockall}) {	2238	if (exists $CFG{mlockall}) {
2000	eval {	2239	eval {
2001	$CFG{mlockall} ? &mlockall : &munlockall	2240	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2002	and die "WARNING: m(un)lockall failed: $!\n";	2241	and die "WARNING: m(un)lockall failed: $!\n";
2003	};	2242	};
2004	warn $@ if $@;	2243	warn $@ if $@;
2005	}	2244	}
2006	}	2245	}
2007		2246
2008	sub main {	2247	sub main {
2009	# we must not ever block the main coroutine	2248	# we must not ever block the main coroutine
2010	local $Coro::idle = sub {	2249	local $Coro::idle = sub {
2011	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2250	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2012	(Coro::unblock_sub {	2251	(async {
2013	Event::one_event;	2252	Event::one_event;
2014	})->();	2253	})->prio (Coro::PRIO_MAX);
2015	};	2254	};
2016		2255
2017	cfg_load;	2256	cfg_load;
2018	db_load;	2257	db_load;
2019	load_extensions;	2258	load_extensions;
		2259
		2260	$TICK_WATCHER->start;
2020	Event::loop;	2261	Event::loop;
2021	}	2262	}
2022		2263
2023	#############################################################################	2264	#############################################################################
2024	# initialisation	2265	# initialisation and cleanup
		2266
		2267	# install some emergency cleanup handlers
		2268	BEGIN {
		2269	for my $signal (qw(INT HUP TERM)) {
		2270	Event->signal (
		2271	data => WF_AUTOCANCEL,
		2272	signal => $signal,
		2273	cb => sub {
		2274	cf::cleanup "SIG$signal";
		2275	},
		2276	);
		2277	}
		2278	}
		2279
		2280	sub emergency_save() {
		2281	my $freeze_guard = cf::freeze_mainloop;
		2282
		2283	warn "enter emergency perl save\n";
		2284
		2285	cf::sync_job {
		2286	# use a peculiar iteration method to avoid tripping on perl
		2287	# refcount bugs in for. also avoids problems with players
		2288	# and maps saved/destroyed asynchronously.
		2289	warn "begin emergency player save\n";
		2290	for my $login (keys %cf::PLAYER) {
		2291	my $pl = $cf::PLAYER{$login} or next;
		2292	$pl->valid or next;
		2293	$pl->save;
		2294	}
		2295	warn "end emergency player save\n";
		2296
		2297	warn "begin emergency map save\n";
		2298	for my $path (keys %cf::MAP) {
		2299	my $map = $cf::MAP{$path} or next;
		2300	$map->valid or next;
		2301	$map->save;
		2302	}
		2303	warn "end emergency map save\n";
		2304	};
		2305
		2306	warn "leave emergency perl save\n";
		2307	}
2025		2308
2026	sub reload() {	2309	sub reload() {
2027	# can/must only be called in main	2310	# can/must only be called in main
2028	if ($Coro::current != $Coro::main) {	2311	if ($Coro::current != $Coro::main) {
2029	warn "can only reload from main coroutine\n";	2312	warn "can only reload from main coroutine";
2030	return;	2313	return;
2031	}	2314	}
2032		2315
2033	warn "reloading...";	2316	warn "reloading...";
2034		2317
2035	local $FREEZE = 1;	2318	warn "cancelling server ticker";
		2319	$TICK_WATCHER->cancel;
		2320
2036	cf::emergency_save;	2321	cf::emergency_save;
2037		2322
2038	eval {	2323	eval {
2039	# if anything goes wrong in here, we should simply crash as we already saved	2324	# if anything goes wrong in here, we should simply crash as we already saved
2040		2325
2041	# cancel all watchers	2326	warn "syncing database to disk";
		2327	cf::db_sync;
		2328
		2329	warn "cancelling all WF_AUTOCANCEL watchers";
2042	for (Event::all_watchers) {	2330	for (Event::all_watchers) {
2043	$_->cancel if $_->data & WF_AUTOCANCEL;	2331	$_->cancel if $_->data & WF_AUTOCANCEL;
2044	}	2332	}
2045		2333
		2334	warn "flushing outstanding aio requests";
		2335	for (;;) {
		2336	IO::AIO::flush;
		2337	Coro::cede;
		2338	last unless IO::AIO::nreqs;
		2339	warn "iterate...";
		2340	}
		2341
2046	# cancel all extension coros	2342	warn "cancelling all extension coros";
2047	$_->cancel for values %EXT_CORO;	2343	$_->cancel for values %EXT_CORO;
2048	%EXT_CORO = ();	2344	%EXT_CORO = ();
2049		2345
2050	# unload all extensions	2346	warn "removing commands";
2051	for (@exts) {	2347	%COMMAND = ();
		2348
		2349	warn "removing ext commands";
		2350	%EXTCMD = ();
		2351
		2352	warn "unloading/nuking all extensions";
		2353	for my $pkg (@EXTS) {
2052	warn "unloading <$_>";	2354	warn "... unloading $pkg";
2053	unload_extension $_;	2355
		2356	if (my $cb = $pkg->can ("unload")) {
		2357	eval {
		2358	$cb->($pkg);
		2359	1
		2360	} or warn "$pkg unloaded, but with errors: $@";
2054	}	2361	}
2055		2362
		2363	warn "... nuking $pkg";
		2364	Symbol::delete_package $pkg;
		2365	}
		2366
2056	# unload all modules loaded from $LIBDIR	2367	warn "unloading all perl modules loaded from $LIBDIR";
2057	while (my ($k, $v) = each %INC) {	2368	while (my ($k, $v) = each %INC) {
2058	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2369	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2059		2370
2060	warn "removing <$k>";	2371	warn "... unloading $k";
2061	delete $INC{$k};	2372	delete $INC{$k};
2062		2373
2063	$k =~ s/\.pm$//;	2374	$k =~ s/\.pm$//;
2064	$k =~ s/\//::/g;	2375	$k =~ s/\//::/g;
2065		2376
…		…
2068	}	2379	}
2069		2380
2070	Symbol::delete_package $k;	2381	Symbol::delete_package $k;
2071	}	2382	}
2072		2383
2073	# sync database to disk
2074	cf::db_sync;
2075	IO::AIO::flush;
2076
2077	# get rid of safe::, as good as possible	2384	warn "getting rid of safe::, as good as possible";
2078	Symbol::delete_package "safe::$_"	2385	Symbol::delete_package "safe::$_"
2079	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2386	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2080		2387
2081	# remove register_script_function callbacks
2082	# TODO
2083
2084	# unload cf.pm "a bit"	2388	warn "unloading cf.pm \"a bit\"";
2085	delete $INC{"cf.pm"};	2389	delete $INC{"cf.pm"};
2086		2390
2087	# don't, removes xs symbols, too,	2391	# don't, removes xs symbols, too,
2088	# and global variables created in xs	2392	# and global variables created in xs
2089	#Symbol::delete_package __PACKAGE__;	2393	#Symbol::delete_package __PACKAGE__;
2090		2394
2091	# reload cf.pm	2395	warn "unload completed, starting to reload now";
		2396
2092	warn "reloading cf.pm";	2397	warn "reloading cf.pm";
2093	require cf;	2398	require cf;
2094	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2399	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2095		2400
2096	# load config and database again	2401	warn "loading config and database again";
2097	cf::cfg_load;	2402	cf::cfg_load;
2098	cf::db_load;	2403	cf::db_load;
2099		2404
2100	# load extensions
2101	warn "load extensions";	2405	warn "loading extensions";
2102	cf::load_extensions;	2406	cf::load_extensions;
2103		2407
2104	# reattach attachments to objects	2408	warn "reattaching attachments to objects/players";
2105	warn "reattach";
2106	_global_reattach;	2409	_global_reattach;
		2410	warn "reattaching attachments to maps";
		2411	reattach $_ for values %MAP;
		2412
		2413	warn "restarting server ticker";
		2414
		2415	$TICK_WATCHER->start;
2107	};	2416	};
2108		2417
2109	if ($@) {	2418	if ($@) {
2110	warn $@;	2419	warn $@;
2111	warn "error while reloading, exiting.";	2420	warn "error while reloading, exiting.";
2112	exit 1;	2421	exit 1;
2113	}	2422	}
2114		2423
2115	warn "reloaded successfully";	2424	warn "reloaded";
2116	};	2425	};
2117		2426
2118	#############################################################################	2427	our $RELOAD_WATCHER; # used only during reload
2119
2120	unless ($LINK_MAP) {
2121	$LINK_MAP = cf::map::new;
2122
2123	$LINK_MAP->width (41);
2124	$LINK_MAP->height (41);
2125	$LINK_MAP->alloc;
2126	$LINK_MAP->path ("{link}");
2127	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2128	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2129
2130	# dirty hack because... archetypes are not yet loaded
2131	Event->timer (
2132	after => 2,
2133	cb => sub {
2134	$_[0]->w->cancel;
2135
2136	# provide some exits "home"
2137	my $exit = cf::object::new "exit";
2138
2139	$exit->slaying ($EMERGENCY_POSITION->[0]);
2140	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2141	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2142
2143	$LINK_MAP->insert ($exit->clone, 19, 19);
2144	$LINK_MAP->insert ($exit->clone, 19, 20);
2145	$LINK_MAP->insert ($exit->clone, 19, 21);
2146	$LINK_MAP->insert ($exit->clone, 20, 19);
2147	$LINK_MAP->insert ($exit->clone, 20, 21);
2148	$LINK_MAP->insert ($exit->clone, 21, 19);
2149	$LINK_MAP->insert ($exit->clone, 21, 20);
2150	$LINK_MAP->insert ($exit->clone, 21, 21);
2151
2152	$exit->destroy;
2153	});
2154
2155	$LINK_MAP->{deny_save} = 1;
2156	$LINK_MAP->{deny_reset} = 1;
2157
2158	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2159	}
2160
2161	register "<global>", __PACKAGE__;
2162		2428
2163	register_command "reload" => sub {	2429	register_command "reload" => sub {
2164	my ($who, $arg) = @_;	2430	my ($who, $arg) = @_;
2165		2431
2166	if ($who->flag (FLAG_WIZ)) {	2432	if ($who->flag (FLAG_WIZ)) {
2167	$who->message ("start of reload.");	2433	$who->message ("reloading server.");
		2434
		2435	# doing reload synchronously and two reloads happen back-to-back,
		2436	# coro crashes during coro_state_free->destroy here.
		2437
		2438	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2168	reload;	2439	reload;
2169	$who->message ("end of reload.");	2440	undef $RELOAD_WATCHER;
		2441	});
2170	}	2442	}
2171	};	2443	};
2172		2444
2173	unshift @INC, $LIBDIR;	2445	unshift @INC, $LIBDIR;
		2446
		2447	my $bug_warning = 0;
2174		2448
2175	$TICK_WATCHER = Event->timer (	2449	$TICK_WATCHER = Event->timer (
2176	reentrant => 0,	2450	reentrant => 0,
		2451	parked => 1,
2177	prio => 0,	2452	prio => 0,
2178	at => $NEXT_TICK || $TICK,	2453	at => $NEXT_TICK || $TICK,
2179	data => WF_AUTOCANCEL,	2454	data => WF_AUTOCANCEL,
2180	cb => sub {	2455	cb => sub {
2181	unless ($FREEZE) {	2456	if ($Coro::current != $Coro::main) {
		2457	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2458	unless ++$bug_warning > 10;
		2459	return;
		2460	}
		2461
		2462	$NOW = Event::time;
		2463
2182	cf::server_tick; # one server iteration	2464	cf::server_tick; # one server iteration
2183	$RUNTIME += $TICK;	2465	$RUNTIME += $TICK;
2184	}
2185
2186	$NEXT_TICK += $TICK;	2466	$NEXT_TICK += $TICK;
		2467
		2468	$WAIT_FOR_TICK->broadcast;
		2469	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2187		2470
2188	# if we are delayed by four ticks or more, skip them all	2471	# if we are delayed by four ticks or more, skip them all
2189	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2472	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2190		2473
2191	$TICK_WATCHER->at ($NEXT_TICK);	2474	$TICK_WATCHER->at ($NEXT_TICK);
…		…
2193	},	2476	},
2194	);	2477	);
2195		2478
2196	IO::AIO::max_poll_time $TICK * 0.2;	2479	IO::AIO::max_poll_time $TICK * 0.2;
2197		2480
2198	Event->io (	2481	$AIO_POLL_WATCHER = Event->io (
2199	fd => IO::AIO::poll_fileno,	2482	fd => IO::AIO::poll_fileno,
2200	poll => 'r',	2483	poll => 'r',
2201	prio => 5,	2484	prio => 5,
2202	data => WF_AUTOCANCEL,	2485	data => WF_AUTOCANCEL,
2203	cb => \&IO::AIO::poll_cb,	2486	cb => \&IO::AIO::poll_cb,
2204	);	2487	);
2205		2488
2206	Event->timer (	2489	$WRITE_RUNTIME_WATCHER = Event->timer (
2207	data => WF_AUTOCANCEL,	2490	data => WF_AUTOCANCEL,
2208	after => 0,	2491	after => 1,
2209	interval => 10,	2492	interval => 10,
2210	cb => sub {	2493	prio => 6, # keep it lowest so it acts like a watchdog
2211	(Coro::unblock_sub {	2494	cb => Coro::unblock_sub {
2212	write_runtime	2495	write_runtime
2213	or warn "ERROR: unable to write runtime file: $!";	2496	or warn "ERROR: unable to write runtime file: $!";
2214	})->();
2215	},	2497	},
2216	);	2498	);
2217		2499
2218	END { cf::emergency_save }	2500	END { cf::emergency_save }
2219		2501

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