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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.117 by root, Mon Jan 1 17:50:26 2007 UTC vs.
Revision 1.199 by root, Mon Jan 29 14:46:01 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 3.5 ();
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	86	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		87
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	88	sub cf::map::normalise;
78		89
79	#############################################################################	90	#############################################################################
80		91
81	=head2 GLOBAL VARIABLES	92	=head2 GLOBAL VARIABLES
82		93
…		…
106		117
107	=item %cf::CFG	118	=item %cf::CFG
108		119
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	120	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	121	from wherever your confdir points to.
		122
		123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		124
		125	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		126	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		127	processing has been done. Call C<< ->wait >> on them to maximise the
		128	window of cpu time available, or simply to synchronise to the server tick.
111		129
112	=back	130	=back
113		131
114	=cut	132	=cut
115		133
…		…
119	utf8::encode $msg;	137	utf8::encode $msg;
120		138
121	$msg .= "\n"	139	$msg .= "\n"
122	unless $msg =~ /\n$/;	140	unless $msg =~ /\n$/;
123		141
124	LOG llevError, "cfperl: $msg";	142	LOG llevError, $msg;
125	};	143	};
126	}	144	}
127		145
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		165
148	$Event::DIED = sub {	166	$Event::DIED = sub {
149	warn "error in event callback: @_";	167	warn "error in event callback: @_";
150	};	168	};
151		169
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	170	=head2 UTILITY FUNCTIONS
157		171
158	=over 4	172	=over 4
159		173
		174	=item dumpval $ref
		175
160	=cut	176	=cut
		177
		178	sub dumpval {
		179	eval {
		180	local $SIG{__DIE__};
		181	my $d;
		182	if (1) {
		183	$d = new Data::Dumper([$_[0]], ["*var"]);
		184	$d->Terse(1);
		185	$d->Indent(2);
		186	$d->Quotekeys(0);
		187	$d->Useqq(1);
		188	#$d->Bless(...);
		189	$d->Seen($_[1]) if @_ > 1;
		190	$d = $d->Dump();
		191	}
		192	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		193	$d
		194	} || "[unable to dump $_[0]: '$@']";
		195	}
161		196
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	197	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		198
164	=item $ref = cf::from_json $json	199	=item $ref = cf::from_json $json
165		200
…		…
180		215
181	sub to_json($) {	216	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	218	JSON::Syck::Dump $_[0]
184	}	219	}
		220
		221	=item cf::lock_wait $string
		222
		223	Wait until the given lock is available. See cf::lock_acquire.
		224
		225	=item my $lock = cf::lock_acquire $string
		226
		227	Wait until the given lock is available and then acquires it and returns
		228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		229	for example when the coroutine gets canceled), the lock is automatically
		230	returned.
		231
		232	Lock names should begin with a unique identifier (for example, cf::map::find
		233	uses map_find and cf::map::load uses map_load).
		234
		235	=cut
		236
		237	our %LOCK;
		238
		239	sub lock_wait($) {
		240	my ($key) = @_;
		241
		242	# wait for lock, if any
		243	while ($LOCK{$key}) {
		244	push @{ $LOCK{$key} }, $Coro::current;
		245	Coro::schedule;
		246	}
		247	}
		248
		249	sub lock_acquire($) {
		250	my ($key) = @_;
		251
		252	# wait, to be sure we are not locked
		253	lock_wait $key;
		254
		255	$LOCK{$key} = [];
		256
		257	Coro::guard {
		258	# wake up all waiters, to be on the safe side
		259	$_->ready for @{ delete $LOCK{$key} };
		260	}
		261	}
		262
		263	sub freeze_mainloop {
		264	return unless $TICK_WATCHER->is_active;
		265
		266	my $guard = Coro::guard {
		267	$TICK_WATCHER->start;
		268	$WRITE_RUNTIME_WATCHER->start;
		269	};
		270	$WRITE_RUNTIME_WATCHER->stop;
		271	$TICK_WATCHER->stop;
		272	$guard
		273	}
		274
		275	=item cf::async { BLOCK }
		276
		277	Currently the same as Coro::async_pool, meaning you cannot use
		278	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		279	thing you are allowed to do is call C<prio> on it.
		280
		281	=cut
		282
		283	BEGIN { *async = \&Coro::async_pool }
185		284
186	=item cf::sync_job { BLOCK }	285	=item cf::sync_job { BLOCK }
187		286
188	The design of crossfire+ requires that the main coro ($Coro::main) is	287	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	288	always able to handle events or runnable, as crossfire+ is only partly
…		…
203	# this is the main coro, too bad, we have to block	302	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	303	# till the operation succeeds, freezing the server :/
205		304
206	# TODO: use suspend/resume instead	305	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	306	# (but this is cancel-safe)
208	local $FREEZE = 1;	307	my $freeze_guard = freeze_mainloop;
209		308
210	my $busy = 1;	309	my $busy = 1;
211	my @res;	310	my @res;
212		311
213	(Coro::async {	312	(async {
214	@res = eval { $job->() };	313	@res = eval { $job->() };
215	warn $@ if $@;	314	warn $@ if $@;
216	undef $busy;	315	undef $busy;
217	})->prio (Coro::PRIO_MAX);	316	})->prio (Coro::PRIO_MAX);
218		317
219	while ($busy) {	318	while ($busy) {
220	Coro::cede_notself;	319	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	320	}
223		321
224	wantarray ? @res : $res[0]	322	wantarray ? @res : $res[0]
225	} else {	323	} else {
226	# we are in another coroutine, how wonderful, everything just works	324	# we are in another coroutine, how wonderful, everything just works
227		325
228	$job->()	326	$job->()
229	}	327	}
230	}	328	}
231		329
232	=item $coro = cf::coro { BLOCK }	330	=item $coro = cf::async_ext { BLOCK }
233		331
234	Creates and returns a new coro. This coro is automcatially being canceled	332	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	333	extension calling this is being unloaded.
236		334
237	=cut	335	=cut
238		336
239	sub coro(&) {	337	sub async_ext(&) {
240	my $cb = shift;	338	my $cb = shift;
241		339
242	my $coro; $coro = async {	340	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		341
249	$coro->on_destroy (sub {	342	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	343	delete $EXT_CORO{$coro+0};
251	});	344	});
252	$EXT_CORO{$coro+0} = $coro;	345	$EXT_CORO{$coro+0} = $coro;
…		…
258	my $runtime = cf::localdir . "/runtime";	351	my $runtime = cf::localdir . "/runtime";
259		352
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	354	or return;
262		355
		356	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	357	# 10 is the runtime save interval, for a monotonic clock
		358	# 60 allows for the watchdog to kill the server.
		359
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	360	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	361	and return;
266		362
267	aio_fsync $fh	363	aio_fsync $fh
268	and return;	364	and return;
…		…
277	}	373	}
278		374
279	=back	375	=back
280		376
281	=cut	377	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402		378
403	#############################################################################	379	#############################################################################
404		380
405	=head2 ATTACHABLE OBJECTS	381	=head2 ATTACHABLE OBJECTS
406		382
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	508	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	509	our @CB_MAP = ();
534		510
535	my %attachment;	511	my %attachment;
536		512
		513	sub cf::attachable::thawer_merge {
		514	# simply override everything except _meta
		515	local $_[0]{_meta};
		516	%{$_[0]} = %{$_[1]};
		517	}
		518
537	sub _attach_cb($$$$) {	519	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	520	my ($registry, $event, $prio, $cb) = @_;
539		521
540	use sort 'stable';	522	use sort 'stable';
541		523
…		…
712	# object support	694	# object support
713		695
714	sub reattach {	696	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	697	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	698	my ($obj) = @_;
		699
		700	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		701
718	my $registry = $obj->registry;	702	my $registry = $obj->registry;
719		703
720	@$registry = ();	704	@$registry = ();
721		705
…		…
817	(aio_load "$filename.pst", $av) >= 0	801	(aio_load "$filename.pst", $av) >= 0
818	or return;	802	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	803	$av = eval { (Storable::thaw $av)->{objs} };
820	}	804	}
821		805
		806	warn sprintf "loading %s (%d)\n",
		807	$filename, length $data, scalar @{$av || []};#d#
822	return ($data, $av);	808	return ($data, $av);
823	}	809	}
824		810
825	#############################################################################	811	#############################################################################
826	# command handling &c	812	# command handling &c
…		…
851	=cut	837	=cut
852		838
853	sub register_extcmd {	839	sub register_extcmd {
854	my ($name, $cb) = @_;	840	my ($name, $cb) = @_;
855		841
856	my $caller = caller;
857	#warn "registering extcmd '$name' to '$caller'";
858
859	$EXTCMD{$name} = [$cb, $caller];	842	$EXTCMD{$name} = $cb;
860	}	843	}
861		844
862	cf::player->attach (	845	cf::player->attach (
863	on_command => sub {	846	on_command => sub {
864	my ($pl, $name, $params) = @_;	847	my ($pl, $name, $params) = @_;
…		…
877		860
878	my $msg = eval { from_json $buf };	861	my $msg = eval { from_json $buf };
879		862
880	if (ref $msg) {	863	if (ref $msg) {
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	864	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
882	if (my %reply = $cb->[0]->($pl, $msg)) {	865	if (my %reply = $cb->($pl, $msg)) {
883	$pl->ext_reply ($msg->{msgid}, %reply);	866	$pl->ext_reply ($msg->{msgid}, %reply);
884	}	867	}
885	}	868	}
886	} else {	869	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	870	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
889		872
890	cf::override;	873	cf::override;
891	},	874	},
892	);	875	);
893		876
894	sub register {
895	my ($base, $pkg) = @_;
896
897	#TODO
898	}
899
900	sub load_extension {	877	sub load_extension {
901	my ($path) = @_;	878	my ($path) = @_;
902		879
903	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	880	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
904	my $base = $1;	881	my $base = $1;
905	my $pkg = $1;	882	my $pkg = $1;
906	$pkg =~ s/[^[:word:]]/_/g;	883	$pkg =~ s/[^[:word:]]/_/g;
907	$pkg = "ext::$pkg";	884	$pkg = "ext::$pkg";
908		885
909	warn "loading '$path' into '$pkg'\n";	886	warn "... loading '$path' into '$pkg'\n";
910		887
911	open my $fh, "<:utf8", $path	888	open my $fh, "<:utf8", $path
912	or die "$path: $!";	889	or die "$path: $!";
913		890
914	my $source =	891	my $source =
915	"package $pkg; use strict; use utf8;\n"	892	"package $pkg; use strict; use utf8;\n"
916	. "#line 1 \"$path\"\n{\n"	893	. "#line 1 \"$path\"\n{\n"
917	. (do { local $/; <$fh> })	894	. (do { local $/; <$fh> })
918	. "\n};\n1";	895	. "\n};\n1";
919		896
920	eval $source	897	unless (eval $source) {
921	or die $@ ? "$path: $@\n"	898	my $msg = $@ ? "$path: $@\n"
922	: "extension disabled.\n";	899	: "extension disabled.\n";
923		900	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
924	push @exts, $pkg;	901	warn $@;
925	$ext_pkg{$base} = $pkg;	902	warn "mandatory extension failed to load, exiting.\n";
926		903	exit 1;
927	# no strict 'refs';	904	}
928	# @{"$pkg\::ISA"} = ext::;	905	die $@;
929
930	register $base, $pkg;
931	}
932
933	sub unload_extension {
934	my ($pkg) = @_;
935
936	warn "removing extension $pkg\n";
937
938	# remove hooks
939	#TODO
940	# for my $idx (0 .. $#PLUGIN_EVENT) {
941	# delete $hook[$idx]{$pkg};
942	# }	906	}
943		907
944	# remove commands	908	push @EXTS, $pkg;
945	for my $name (keys %COMMAND) {
946	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
947
948	if (@cb) {
949	$COMMAND{$name} = \@cb;
950	} else {
951	delete $COMMAND{$name};
952	}
953	}
954
955	# remove extcmds
956	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
957	delete $EXTCMD{$name};
958	}
959
960	if (my $cb = $pkg->can ("unload")) {
961	eval {
962	$cb->($pkg);
963	1
964	} or warn "$pkg unloaded, but with errors: $@";
965	}
966
967	Symbol::delete_package $pkg;
968	}	909	}
969		910
970	sub load_extensions {	911	sub load_extensions {
971	for my $ext (<$LIBDIR/*.ext>) {	912	for my $ext (<$LIBDIR/*.ext>) {
972	next unless -r $ext;	913	next unless -r $ext;
…		…
976	} or warn "$ext not loaded: $@";	917	} or warn "$ext not loaded: $@";
977	}	918	}
978	}	919	}
979		920
980	#############################################################################	921	#############################################################################
981	# load/save/clean perl data associated with a map
982
983	*cf::mapsupport::on_clean = sub {
984	my ($map) = @_;
985
986	my $path = $map->tmpname;
987	defined $path or return;
988
989	unlink "$path.pst";
990	};
991
992	cf::map->attach (prio => -10000, package => cf::mapsupport::);
993
994	#############################################################################
995	# load/save perl data associated with player->ob objects
996
997	sub all_objects(@) {
998	@_, map all_objects ($_->inv), @_
999	}
1000
1001	# TODO: compatibility cruft, remove when no longer needed
1002	cf::player->attach (
1003	on_load => sub {
1004	my ($pl, $path) = @_;
1005
1006	for my $o (all_objects $pl->ob) {
1007	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1008	$o->set_ob_key_value ("_perl_data");
1009
1010	%$o = %{ Storable::thaw pack "H*", $value };
1011	}
1012	}
1013	},
1014	);
1015
1016	#############################################################################
1017		922
1018	=head2 CORE EXTENSIONS	923	=head2 CORE EXTENSIONS
1019		924
1020	Functions and methods that extend core crossfire objects.	925	Functions and methods that extend core crossfire objects.
1021		926
		927	=cut
		928
		929	package cf::player;
		930
		931	use Coro::AIO;
		932
1022	=head3 cf::player	933	=head3 cf::player
1023		934
1024	=over 4	935	=over 4
1025		936
1026	=item cf::player::exists $login	937	=item cf::player::find $login
1027		938
1028	Returns true when the given account exists.	939	Returns the given player object, loading it if necessary (might block).
1029		940
1030	=cut	941	=cut
1031		942
1032	sub cf::player::exists($) {	943	sub playerdir($) {
1033	cf::player::find $_[0]	944	cf::localdir
1034	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	945	. "/"
		946	. cf::playerdir
		947	. "/"
		948	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		949	}
		950
		951	sub path($) {
		952	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		953
		954	(playerdir $login) . "/$login.pl"
		955	}
		956
		957	sub find_active($) {
		958	$cf::PLAYER{$_[0]}
		959	and $cf::PLAYER{$_[0]}->active
		960	and $cf::PLAYER{$_[0]}
		961	}
		962
		963	sub exists($) {
		964	my ($login) = @_;
		965
		966	$cf::PLAYER{$login}
		967	or cf::sync_job { !aio_stat path $login }
		968	}
		969
		970	sub find($) {
		971	return $cf::PLAYER{$_[0]} || do {
		972	my $login = $_[0];
		973
		974	my $guard = cf::lock_acquire "user_find:$login";
		975
		976	$cf::PLAYER{$_[0]} || do {
		977	my $pl = load_pl path $login
		978	or return;
		979	$cf::PLAYER{$login} = $pl
		980	}
		981	}
		982	}
		983
		984	sub save($) {
		985	my ($pl) = @_;
		986
		987	return if $pl->{deny_save};
		988
		989	my $path = path $pl;
		990	my $guard = cf::lock_acquire "user_save:$path";
		991
		992	return if $pl->{deny_save};
		993
		994	aio_mkdir playerdir $pl, 0770;
		995	$pl->{last_save} = $cf::RUNTIME;
		996
		997	$pl->save_pl ($path);
		998	Coro::cede;
		999	}
		1000
		1001	sub new($) {
		1002	my ($login) = @_;
		1003
		1004	my $self = create;
		1005
		1006	$self->ob->name ($login);
		1007	$self->{deny_save} = 1;
		1008
		1009	$cf::PLAYER{$login} = $self;
		1010
		1011	$self
		1012	}
		1013
		1014	=item $pl->quit_character
		1015
		1016	Nukes the player without looking back. If logged in, the connection will
		1017	be destroyed. May block for a long time.
		1018
		1019	=cut
		1020
		1021	sub quit_character {
		1022	my ($pl) = @_;
		1023
		1024	$pl->{deny_save} = 1;
		1025	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1026
		1027	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1028	$pl->deactivate;
		1029	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1030	$pl->ns->destroy if $pl->ns;
		1031
		1032	my $path = playerdir $pl;
		1033	my $temp = "$path~$cf::RUNTIME~deleting~";
		1034	aio_rename $path, $temp;
		1035	delete $cf::PLAYER{$pl->ob->name};
		1036	$pl->destroy;
		1037	IO::AIO::aio_rmtree $temp;
		1038	}
		1039
		1040	=item cf::player::list_logins
		1041
		1042	Returns am arrayref of all valid playernames in the system, can take a
		1043	while and may block, so not sync_job-capable, ever.
		1044
		1045	=cut
		1046
		1047	sub list_logins {
		1048	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1049	or return [];
		1050
		1051	my @logins;
		1052
		1053	for my $login (@$dirs) {
		1054	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1055	aio_read $fh, 0, 512, my $buf, 0 or next;
		1056	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1057
		1058	utf8::decode $login;
		1059	push @logins, $login;
		1060	}
		1061
		1062	\@logins
		1063	}
		1064
		1065	=item $player->maps
		1066
		1067	Returns an arrayref of map paths that are private for this
		1068	player. May block.
		1069
		1070	=cut
		1071
		1072	sub maps($) {
		1073	my ($pl) = @_;
		1074
		1075	my $files = aio_readdir playerdir $pl
		1076	or return;
		1077
		1078	my @paths;
		1079
		1080	for (@$files) {
		1081	utf8::decode $_;
		1082	next if /\.(?:pl|pst)$/;
		1083	next unless /^$PATH_SEP/o;
		1084
		1085	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;
		1086	}
		1087
		1088	\@paths
1035	}	1089	}
1036		1090
1037	=item $player->ext_reply ($msgid, $msgtype, %msg)	1091	=item $player->ext_reply ($msgid, $msgtype, %msg)
1038		1092
1039	Sends an ext reply to the player.	1093	Sends an ext reply to the player.
1040		1094
1041	=cut	1095	=cut
1042		1096
1043	sub cf::player::ext_reply($$$%) {	1097	sub ext_reply($$$%) {
1044	my ($self, $id, %msg) = @_;	1098	my ($self, $id, %msg) = @_;
1045		1099
1046	$msg{msgid} = $id;	1100	$msg{msgid} = $id;
1047		1101
1048	$self->send ("ext " . to_json \%msg);	1102	$self->send ("ext " . cf::to_json \%msg);
1049	}	1103	}
		1104
		1105	package cf;
1050		1106
1051	=back	1107	=back
1052		1108
1053		1109
1054	=head3 cf::map	1110	=head3 cf::map
…		…
1060	package cf::map;	1116	package cf::map;
1061		1117
1062	use Fcntl;	1118	use Fcntl;
1063	use Coro::AIO;	1119	use Coro::AIO;
1064		1120
		1121	use overload
		1122	'""' => \&as_string,
		1123	fallback => 1;
		1124
1065	our $MAX_RESET = 7200;	1125	our $MAX_RESET = 3600;
1066	our $DEFAULT_RESET = 3600;	1126	our $DEFAULT_RESET = 3000;
1067		1127
1068	sub generate_random_map {	1128	sub generate_random_map {
1069	my ($path, $rmp) = @_;	1129	my ($self, $rmp) = @_;
1070
1071	# mit "rum" bekleckern, nicht	1130	# mit "rum" bekleckern, nicht
1072	cf::map::_create_random_map	1131	$self->_create_random_map (
1073	$path,
1074	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1132	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1075	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1133	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1076	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1134	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1077	$rmp->{exit_on_final_map},	1135	$rmp->{exit_on_final_map},
1078	$rmp->{xsize}, $rmp->{ysize},	1136	$rmp->{xsize}, $rmp->{ysize},
1079	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1137	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1080	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1138	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1081	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1139	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1082	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1140	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1083	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1141	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1084	(cf::region::find $rmp->{region})	1142	(cf::region::find $rmp->{region}), $rmp->{custom}
		1143	)
		1144	}
		1145
		1146	=item cf::map->register ($regex, $prio)
		1147
		1148	Register a handler for the map path matching the given regex at the
		1149	givne priority (higher is better, built-in handlers have priority 0, the
		1150	default).
		1151
		1152	=cut
		1153
		1154	sub register {
		1155	my (undef, $regex, $prio) = @_;
		1156	my $pkg = caller;
		1157
		1158	no strict;
		1159	push @{"$pkg\::ISA"}, __PACKAGE__;
		1160
		1161	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1162	}
		1163
		1164	# also paths starting with '/'
		1165	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1166
		1167	sub thawer_merge {
		1168	my ($self, $merge) = @_;
		1169
		1170	# we have to keep some variables in memory intact
		1171	local $self->{path};
		1172	local $self->{load_path};
		1173	local $self->{deny_save};
		1174	local $self->{deny_reset};
		1175
		1176	$self->SUPER::thawer_merge ($merge);
		1177	}
		1178
		1179	sub normalise {
		1180	my ($path, $base) = @_;
		1181
		1182	$path = "$path"; # make sure its a string
		1183
		1184	$path =~ s/\.map$//;
		1185
		1186	# map plan:
		1187	#
		1188	# /! non-realised random map exit (special hack!)
		1189	# {... are special paths that are not being touched
		1190	# ?xxx/... are special absolute paths
		1191	# ?random/... random maps
		1192	# /... normal maps
		1193	# ~user/... per-player map of a specific user
		1194
		1195	$path =~ s/$PATH_SEP/\//go;
		1196
		1197	# treat it as relative path if it starts with
		1198	# something that looks reasonable
		1199	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1200	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1201
		1202	$base =~ s{[^/]+/?$}{};
		1203	$path = "$base/$path";
		1204	}
		1205
		1206	for ($path) {
		1207	redo if s{//}{/};
		1208	redo if s{/\.?/}{/};
		1209	redo if s{/[^/]+/\.\./}{/};
		1210	}
		1211
		1212	$path
		1213	}
		1214
		1215	sub new_from_path {
		1216	my (undef, $path, $base) = @_;
		1217
		1218	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1219
		1220	$path = normalise $path, $base;
		1221
		1222	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1223	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1224	my $self = bless cf::map::new, $pkg;
		1225	$self->{path} = $path; $self->path ($path);
		1226	$self->init; # pass $1 etc.
		1227	return $self;
		1228	}
		1229	}
		1230
		1231	Carp::carp "unable to resolve path '$path' (base '$base').";
		1232	()
		1233	}
		1234
		1235	sub init {
		1236	my ($self) = @_;
		1237
		1238	$self
		1239	}
		1240
		1241	sub as_string {
		1242	my ($self) = @_;
		1243
		1244	"$self->{path}"
		1245	}
		1246
		1247	# the displayed name, this is a one way mapping
		1248	sub visible_name {
		1249	&as_string
		1250	}
		1251
		1252	# the original (read-only) location
		1253	sub load_path {
		1254	my ($self) = @_;
		1255
		1256	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1257	}
		1258
		1259	# the temporary/swap location
		1260	sub save_path {
		1261	my ($self) = @_;
		1262
		1263	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1264	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1265	}
		1266
		1267	# the unique path, undef == no special unique path
		1268	sub uniq_path {
		1269	my ($self) = @_;
		1270
		1271	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1272	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1085	}	1273	}
1086		1274
1087	# and all this just because we cannot iterate over	1275	# and all this just because we cannot iterate over
1088	# all maps in C++...	1276	# all maps in C++...
1089	sub change_all_map_light {	1277	sub change_all_map_light {
1090	my ($change) = @_;	1278	my ($change) = @_;
1091		1279
1092	$_->change_map_light ($change) for values %cf::MAP;	1280	$_->change_map_light ($change)
		1281	for grep $_->outdoor, values %cf::MAP;
1093	}	1282	}
1094		1283
		1284	sub unlink_save {
		1285	my ($self) = @_;
		1286
		1287	utf8::encode (my $save = $self->save_path);
		1288	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1289	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1290	}
		1291
1095	sub try_load_header($) {	1292	sub load_header_from($) {
1096	my ($path) = @_;	1293	my ($self, $path) = @_;
1097		1294
1098	utf8::encode $path;	1295	utf8::encode $path;
1099	aio_open $path, O_RDONLY, 0	1296	aio_open $path, O_RDONLY, 0
1100	or return;	1297	or return;
1101		1298
1102	my $map = cf::map::new	1299	$self->_load_header ($path)
1103	or return;	1300	or return;
1104		1301
1105	$map->load_header ($path)	1302	$self->{load_path} = $path;
		1303
		1304	1
		1305	}
		1306
		1307	sub load_header_orig {
		1308	my ($self) = @_;
		1309
		1310	$self->load_header_from ($self->load_path)
		1311	}
		1312
		1313	sub load_header_temp {
		1314	my ($self) = @_;
		1315
		1316	$self->load_header_from ($self->save_path)
		1317	}
		1318
		1319	sub prepare_temp {
		1320	my ($self) = @_;
		1321
		1322	$self->last_access ((delete $self->{last_access})
		1323	|| $cf::RUNTIME); #d#
		1324	# safety
		1325	$self->{instantiate_time} = $cf::RUNTIME
		1326	if $self->{instantiate_time} > $cf::RUNTIME;
		1327	}
		1328
		1329	sub prepare_orig {
		1330	my ($self) = @_;
		1331
		1332	$self->{load_original} = 1;
		1333	$self->{instantiate_time} = $cf::RUNTIME;
		1334	$self->last_access ($cf::RUNTIME);
		1335	$self->instantiate;
		1336	}
		1337
		1338	sub load_header {
		1339	my ($self) = @_;
		1340
		1341	if ($self->load_header_temp) {
		1342	$self->prepare_temp;
		1343	} else {
		1344	$self->load_header_orig
1106	or return;	1345	or return;
		1346	$self->prepare_orig;
		1347	}
1107		1348
1108	$map->{load_path} = $path;	1349	1
1109
1110	$map
1111	}	1350	}
1112		1351
		1352	sub find;
1113	sub find_map {	1353	sub find {
1114	my ($path, $origin) = @_;	1354	my ($path, $origin) = @_;
1115		1355
1116	#warn "find_map<$path,$origin>\n";#d#
1117
1118	$path = new cf::path $path, $origin && $origin->path;	1356	$path = normalise $path, $origin && $origin->path;
1119	my $key = $path->as_string;
1120		1357
		1358	cf::lock_wait "map_find:$path";
		1359
1121	$cf::MAP{$key} || do {	1360	$cf::MAP{$path} || do {
1122	# do it the slow way	1361	my $guard = cf::lock_acquire "map_find:$path";
1123	my $map = try_load_header $path->save_path;	1362	my $map = new_from_path cf::map $path
1124
1125	if ($map) {
1126	# safety
1127	$map->{instantiate_time} = $cf::RUNTIME
1128	if $map->{instantiate_time} > $cf::RUNTIME;
1129	} else {
1130	if (my $rmp = $path->random_map_params) {
1131	$map = generate_random_map $key, $rmp;
1132	} else {
1133	$map = try_load_header $path->load_path;
1134	}
1135
1136	$map or return;	1363	or return;
1137		1364
1138	$map->{load_original} = 1;
1139	$map->{instantiate_time} = $cf::RUNTIME;
1140	$map->instantiate;
1141
1142	# per-player maps become, after loading, normal maps
1143	$map->per_player (0) if $path->{user_rel};
1144	}
1145
1146	$map->path ($key);
1147	$map->{path} = $path;
1148	$map->{last_save} = $cf::RUNTIME;	1365	$map->{last_save} = $cf::RUNTIME;
1149	$map->last_access ($cf::RUNTIME);
1150		1366
1151	if ($map->should_reset) {	1367	$map->load_header
		1368	or return;
		1369
		1370	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1371	# doing this can freeze the server in a sync job, obviously
		1372	#$cf::WAIT_FOR_TICK->wait;
1152	$map->reset;	1373	$map->reset;
1153	$map = find_map $path;	1374	undef $guard;
		1375	return find $path;
1154	}	1376	}
1155		1377
1156	$cf::MAP{$key} = $map	1378	$cf::MAP{$path} = $map
1157	}	1379	}
1158	}	1380	}
		1381
		1382	sub pre_load { }
		1383	sub post_load { }
1159		1384
1160	sub load {	1385	sub load {
1161	my ($self) = @_;	1386	my ($self) = @_;
1162		1387
		1388	local $self->{deny_reset} = 1; # loading can take a long time
		1389
		1390	my $path = $self->{path};
		1391	my $guard = cf::lock_acquire "map_load:$path";
		1392
1163	return if $self->in_memory != cf::MAP_SWAPPED;	1393	return if $self->in_memory != cf::MAP_SWAPPED;
1164		1394
1165	$self->in_memory (cf::MAP_LOADING);	1395	$self->in_memory (cf::MAP_LOADING);
1166		1396
1167	my $path = $self->{path};
1168
1169	$self->alloc;	1397	$self->alloc;
		1398
		1399	$self->pre_load;
		1400
1170	$self->load_objects ($self->{load_path}, 1)	1401	$self->_load_objects ($self->{load_path}, 1)
1171	or return;	1402	or return;
1172		1403
1173	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1404	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1174	if delete $self->{load_original};	1405	if delete $self->{load_original};
1175		1406
1176	if (my $uniq = $path->uniq_path) {	1407	if (my $uniq = $self->uniq_path) {
1177	utf8::encode $uniq;	1408	utf8::encode $uniq;
1178	if (aio_open $uniq, O_RDONLY, 0) {	1409	if (aio_open $uniq, O_RDONLY, 0) {
1179	$self->clear_unique_items;	1410	$self->clear_unique_items;
1180	$self->load_objects ($uniq, 0);	1411	$self->_load_objects ($uniq, 0);
1181	}	1412	}
1182	}	1413	}
		1414
		1415	Coro::cede;
1183		1416
1184	# now do the right thing for maps	1417	# now do the right thing for maps
1185	$self->link_multipart_objects;	1418	$self->link_multipart_objects;
1186		1419
1187	if ($self->{path}->is_style_map) {	1420	unless ($self->{deny_activate}) {
1188	$self->{deny_save} = 1;	1421	$self->decay_objects;
1189	$self->{deny_reset} = 1;
1190	} else {
1191	$self->fix_auto_apply;	1422	$self->fix_auto_apply;
1192	$self->decay_objects;
1193	$self->update_buttons;	1423	$self->update_buttons;
		1424	Coro::cede;
1194	$self->set_darkness_map;	1425	$self->set_darkness_map;
1195	$self->difficulty ($self->estimate_difficulty)	1426	$self->difficulty ($self->estimate_difficulty)
1196	unless $self->difficulty;	1427	unless $self->difficulty;
		1428	Coro::cede;
1197	$self->activate;	1429	$self->activate;
1198	}	1430	}
1199		1431
		1432	$self->post_load;
		1433
1200	$self->in_memory (cf::MAP_IN_MEMORY);	1434	$self->in_memory (cf::MAP_IN_MEMORY);
1201	}	1435	}
1202		1436
1203	sub load_map_sync {	1437	sub customise_for {
		1438	my ($self, $ob) = @_;
		1439
		1440	return find "~" . $ob->name . "/" . $self->{path}
		1441	if $self->per_player;
		1442
		1443	$self
		1444	}
		1445
		1446	# find and load all maps in the 3x3 area around a map
		1447	sub load_diag {
		1448	my ($map) = @_;
		1449
		1450	my @diag; # diagonal neighbours
		1451
		1452	for (0 .. 3) {
		1453	my $neigh = $map->tile_path ($_)
		1454	or next;
		1455	$neigh = find $neigh, $map
		1456	or next;
		1457	$neigh->load;
		1458
		1459	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1460	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1461	}
		1462
		1463	for (@diag) {
		1464	my $neigh = find @$_
		1465	or next;
		1466	$neigh->load;
		1467	}
		1468	}
		1469
		1470	sub find_sync {
1204	my ($path, $origin) = @_;	1471	my ($path, $origin) = @_;
1205		1472
1206	#warn "load_map_sync<$path, $origin>\n";#d#	1473	cf::sync_job { find $path, $origin }
		1474	}
1207		1475
1208	cf::sync_job {	1476	sub do_load_sync {
1209	my $map = cf::map::find_map $path, $origin	1477	my ($map) = @_;
1210	or return;	1478
		1479	cf::sync_job { $map->load };
		1480	}
		1481
		1482	our %MAP_PREFETCH;
		1483	our $MAP_PREFETCHER = undef;
		1484
		1485	sub find_async {
		1486	my ($path, $origin) = @_;
		1487
		1488	$path = normalise $path, $origin && $origin->{path};
		1489
		1490	if (my $map = $cf::MAP{$path}) {
		1491	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1492	}
		1493
		1494	undef $MAP_PREFETCH{$path};
		1495	$MAP_PREFETCHER ||= cf::async {
		1496	while (%MAP_PREFETCH) {
		1497	for my $path (keys %MAP_PREFETCH) {
		1498	my $map = find $path
		1499	or next;
1211	$map->load;	1500	$map->load;
1212	$map	1501
		1502	delete $MAP_PREFETCH{$path};
		1503	}
		1504	}
		1505	undef $MAP_PREFETCHER;
1213	}	1506	};
		1507	$MAP_PREFETCHER->prio (6);
		1508
		1509	()
1214	}	1510	}
1215		1511
1216	sub save {	1512	sub save {
1217	my ($self) = @_;	1513	my ($self) = @_;
1218		1514
		1515	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1516
1219	$self->{last_save} = $cf::RUNTIME;	1517	$self->{last_save} = $cf::RUNTIME;
1220		1518
1221	return unless $self->dirty;	1519	return unless $self->dirty;
1222		1520
1223	my $save = $self->{path}->save_path; utf8::encode $save;	1521	my $save = $self->save_path; utf8::encode $save;
1224	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1522	my $uniq = $self->uniq_path; utf8::encode $uniq;
1225		1523
1226	$self->{load_path} = $save;	1524	$self->{load_path} = $save;
1227		1525
1228	return if $self->{deny_save};	1526	return if $self->{deny_save};
1229		1527
		1528	local $self->{last_access} = $self->last_access;#d#
		1529
		1530	cf::async {
		1531	$_->contr->save for $self->players;
		1532	};
		1533
1230	if ($uniq) {	1534	if ($uniq) {
1231	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1535	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1232	$self->save_objects ($uniq, cf::IO_UNIQUES);	1536	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1233	} else {	1537	} else {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1538	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1235	}	1539	}
1236	}	1540	}
1237		1541
1238	sub swap_out {	1542	sub swap_out {
1239	my ($self) = @_;	1543	my ($self) = @_;
		1544
		1545	# save first because save cedes
		1546	$self->save;
		1547
		1548	my $lock = cf::lock_acquire "map_data:" . $self->path;
1240		1549
1241	return if $self->players;	1550	return if $self->players;
1242	return if $self->in_memory != cf::MAP_IN_MEMORY;	1551	return if $self->in_memory != cf::MAP_IN_MEMORY;
1243	return if $self->{deny_save};	1552	return if $self->{deny_save};
1244		1553
1245	$self->save;
1246	$self->clear;	1554	$self->clear;
1247	$self->in_memory (cf::MAP_SWAPPED);	1555	$self->in_memory (cf::MAP_SWAPPED);
1248	}	1556	}
1249		1557
1250	sub reset_at {	1558	sub reset_at {
1251	my ($self) = @_;	1559	my ($self) = @_;
1252		1560
1253	# TODO: safety, remove and allow resettable per-player maps	1561	# TODO: safety, remove and allow resettable per-player maps
1254	return 1e99 if $self->{path}{user_rel};	1562	return 1e99 if $self->isa ("ext::map_per_player");#d#
1255	return 1e99 if $self->{deny_reset};	1563	return 1e99 if $self->{deny_reset};
1256		1564
1257	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1258	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1259		1567
…		…
1264	my ($self) = @_;	1572	my ($self) = @_;
1265		1573
1266	$self->reset_at <= $cf::RUNTIME	1574	$self->reset_at <= $cf::RUNTIME
1267	}	1575	}
1268		1576
1269	sub unlink_save {
1270	my ($self) = @_;
1271
1272	utf8::encode (my $save = $self->{path}->save_path);
1273	aioreq_pri 3; IO::AIO::aio_unlink $save;
1274	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1275	}
1276
1277	sub rename {
1278	my ($self, $new_path) = @_;
1279
1280	$self->unlink_save;
1281
1282	delete $cf::MAP{$self->path};
1283	$self->{path} = new cf::path $new_path;
1284	$self->path ($self->{path}->as_string);
1285	$cf::MAP{$self->path} = $self;
1286
1287	$self->save;
1288	}
1289
1290	sub reset {	1577	sub reset {
1291	my ($self) = @_;	1578	my ($self) = @_;
1292		1579
		1580	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1581
1293	return if $self->players;	1582	return if $self->players;
1294	return if $self->{path}{user_rel};#d#	1583	return if $self->isa ("ext::map_per_player");#d#
1295		1584
1296	warn "resetting map ", $self->path;#d#	1585	warn "resetting map ", $self->path;#d#
1297		1586
1298	delete $cf::MAP{$self->path};	1587	delete $cf::MAP{$self->path};
		1588
		1589	$self->in_memory (cf::MAP_SWAPPED);
		1590	$self->clear;
1299		1591
1300	$_->clear_links_to ($self) for values %cf::MAP;	1592	$_->clear_links_to ($self) for values %cf::MAP;
1301		1593
1302	$self->unlink_save;	1594	$self->unlink_save;
1303	$self->destroy;	1595	$self->destroy;
…		…
1306	my $nuke_counter = "aaaa";	1598	my $nuke_counter = "aaaa";
1307		1599
1308	sub nuke {	1600	sub nuke {
1309	my ($self) = @_;	1601	my ($self) = @_;
1310		1602
		1603	delete $cf::MAP{$self->path};
		1604
		1605	$self->unlink_save;
		1606
		1607	bless $self, "cf::map";
		1608	delete $self->{deny_reset};
1311	$self->{deny_save} = 1;	1609	$self->{deny_save} = 1;
1312	$self->reset_timeout (1);	1610	$self->reset_timeout (1);
1313	$self->rename ("{nuke}/" . ($nuke_counter++));	1611	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1612
		1613	$cf::MAP{$self->path} = $self;
		1614
1314	$self->reset; # polite request, might not happen	1615	$self->reset; # polite request, might not happen
1315	}	1616	}
1316		1617
1317	sub customise_for {	1618	=item cf::map::unique_maps
1318	my ($map, $ob) = @_;
1319		1619
1320	if ($map->per_player) {	1620	Returns an arrayref of paths of all shared maps that have
1321	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1621	instantiated unique items. May block.
1322	}
1323		1622
1324	$map	1623	=cut
1325	}
1326		1624
1327	sub emergency_save {	1625	sub unique_maps() {
1328	local $cf::FREEZE = 1;	1626	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1627	or return;
1329		1628
1330	warn "enter emergency map save\n";	1629	my @paths;
1331		1630
1332	cf::sync_job {	1631	for (@$files) {
1333	warn "begin emergency map save\n";	1632	utf8::decode $_;
1334	$_->save for values %cf::MAP;	1633	next if /\.pst$/;
		1634	next unless /^$PATH_SEP/o;
		1635
		1636	push @paths, cf::map::normalise $_;
1335	};	1637	}
1336		1638
1337	warn "end emergency map save\n";	1639	\@paths
1338	}	1640	}
1339		1641
1340	package cf;	1642	package cf;
1341		1643
1342	=back	1644	=back
1343		1645
		1646	=head3 cf::object
		1647
		1648	=cut
		1649
		1650	package cf::object;
		1651
		1652	=over 4
		1653
		1654	=item $ob->inv_recursive
		1655
		1656	Returns the inventory of the object _and_ their inventories, recursively.
		1657
		1658	=cut
		1659
		1660	sub inv_recursive_;
		1661	sub inv_recursive_ {
		1662	map { $_, inv_recursive_ $_->inv } @_
		1663	}
		1664
		1665	sub inv_recursive {
		1666	inv_recursive_ inv $_[0]
		1667	}
		1668
		1669	package cf;
		1670
		1671	=back
1344		1672
1345	=head3 cf::object::player	1673	=head3 cf::object::player
1346		1674
1347	=over 4	1675	=over 4
1348		1676
…		…
1388		1716
1389	=item $player_object->enter_link	1717	=item $player_object->enter_link
1390		1718
1391	Freezes the player and moves him/her to a special map (C<{link}>).	1719	Freezes the player and moves him/her to a special map (C<{link}>).
1392		1720
1393	The player should be reaosnably safe there for short amounts of time. You	1721	The player should be reasonably safe there for short amounts of time. You
1394	I<MUST> call C<leave_link> as soon as possible, though.	1722	I<MUST> call C<leave_link> as soon as possible, though.
1395		1723
		1724	Will never block.
		1725
1396	=item $player_object->leave_link ($map, $x, $y)	1726	=item $player_object->leave_link ($map, $x, $y)
1397		1727
1398	Moves the player out of the specila link map onto the given map. If the	1728	Moves the player out of the special C<{link}> map onto the specified
1399	map is not valid (or omitted), the player will be moved back to the	1729	map. If the map is not valid (or omitted), the player will be moved back
1400	location he/she was before the call to C<enter_link>, or, if that fails,	1730	to the location he/she was before the call to C<enter_link>, or, if that
1401	to the emergency map position.	1731	fails, to the emergency map position.
1402		1732
1403	Might block.	1733	Might block.
1404		1734
1405	=cut	1735	=cut
		1736
		1737	sub link_map {
		1738	unless ($LINK_MAP) {
		1739	$LINK_MAP = cf::map::find "{link}"
		1740	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1741	$LINK_MAP->load;
		1742	}
		1743
		1744	$LINK_MAP
		1745	}
1406		1746
1407	sub cf::object::player::enter_link {	1747	sub cf::object::player::enter_link {
1408	my ($self) = @_;	1748	my ($self) = @_;
1409		1749
1410	return if $self->map == $LINK_MAP;	1750	$self->deactivate_recursive;
1411		1751
		1752	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1753
1412	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1754	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1413	if $self->map;	1755	if $self->map;
1414		1756
1415	$self->enter_map ($LINK_MAP, 20, 20);	1757	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1416	$self->deactivate_recursive;
1417	}	1758	}
1418		1759
1419	sub cf::object::player::leave_link {	1760	sub cf::object::player::leave_link {
1420	my ($self, $map, $x, $y) = @_;	1761	my ($self, $map, $x, $y) = @_;
1421		1762
1422	my $link_pos = delete $self->{_link_pos};	1763	my $link_pos = delete $self->{_link_pos};
1423		1764
1424	unless ($map) {	1765	unless ($map) {
1425	# restore original map position	1766	# restore original map position
1426	($map, $x, $y) = @{ $link_pos || [] };	1767	($map, $x, $y) = @{ $link_pos || [] };
1427	$map = cf::map::find_map $map;	1768	$map = cf::map::find $map;
1428		1769
1429	unless ($map) {	1770	unless ($map) {
1430	($map, $x, $y) = @$EMERGENCY_POSITION;	1771	($map, $x, $y) = @$EMERGENCY_POSITION;
1431	$map = cf::map::find_map $map	1772	$map = cf::map::find $map
1432	or die "FATAL: cannot load emergency map\n";	1773	or die "FATAL: cannot load emergency map\n";
1433	}	1774	}
1434	}	1775	}
1435		1776
1436	($x, $y) = (-1, -1)	1777	($x, $y) = (-1, -1)
…		…
1439	# use -1 or undef as default coordinates, not 0, 0	1780	# use -1 or undef as default coordinates, not 0, 0
1440	($x, $y) = ($map->enter_x, $map->enter_y)	1781	($x, $y) = ($map->enter_x, $map->enter_y)
1441	if $x <=0 && $y <= 0;	1782	if $x <=0 && $y <= 0;
1442		1783
1443	$map->load;	1784	$map->load;
		1785	$map->load_diag;
1444		1786
		1787	return unless $self->contr->active;
1445	$self->activate_recursive;	1788	$self->activate_recursive;
1446	$self->enter_map ($map, $x, $y);	1789	$self->enter_map ($map, $x, $y);
1447	}	1790	}
1448		1791
		1792	cf::player->attach (
		1793	on_logout => sub {
		1794	my ($pl) = @_;
		1795
		1796	# abort map switching before logout
		1797	if ($pl->ob->{_link_pos}) {
		1798	cf::sync_job {
		1799	$pl->ob->leave_link
		1800	};
		1801	}
		1802	},
		1803	on_login => sub {
		1804	my ($pl) = @_;
		1805
		1806	# try to abort aborted map switching on player login :)
		1807	# should happen only on crashes
		1808	if ($pl->ob->{_link_pos}) {
		1809	$pl->ob->enter_link;
		1810	(async {
		1811	# we need this sleep as the login has a concurrent enter_exit running
		1812	# and this sleep increases chances of the player not ending up in scorn
		1813	$pl->ob->reply (undef,
		1814	"There was an internal problem at your last logout, "
		1815	. "the server will try to bring you to your intended destination in a second.",
		1816	cf::NDI_RED);
		1817	Coro::Timer::sleep 1;
		1818	$pl->ob->leave_link;
		1819	})->prio (2);
		1820	}
		1821	},
		1822	);
		1823
1449	=item $player_object->goto_map ($map, $x, $y)	1824	=item $player_object->goto ($path, $x, $y)
1450		1825
1451	=cut	1826	=cut
1452		1827
1453	sub cf::object::player::goto_map {	1828	sub cf::object::player::goto {
1454	my ($self, $path, $x, $y) = @_;	1829	my ($self, $path, $x, $y) = @_;
1455		1830
1456	$self->enter_link;	1831	$self->enter_link;
1457		1832
1458	(Coro::async {	1833	(async {
1459	$path = new cf::path $path;	1834	my $map = eval {
1460
1461	my $map = cf::map::find_map $path->as_string;	1835	my $map = cf::map::find $path;
1462	$map = $map->customise_for ($self) if $map;	1836	$map = $map->customise_for ($self) if $map;
1463
1464	warn "entering ", $map->path, " at ($x, $y)\n"
1465	if $map;	1837	$map
1466		1838	} or
1467	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1839	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1468		1840
1469	$self->leave_link ($map, $x, $y);	1841	$self->leave_link ($map, $x, $y);
1470	})->prio (1);	1842	})->prio (1);
1471	}	1843	}
1472		1844
…		…
1476		1848
1477	sub parse_random_map_params {	1849	sub parse_random_map_params {
1478	my ($spec) = @_;	1850	my ($spec) = @_;
1479		1851
1480	my $rmp = { # defaults	1852	my $rmp = { # defaults
1481	xsize => 10,	1853	xsize => (cf::rndm 15, 40),
1482	ysize => 10,	1854	ysize => (cf::rndm 15, 40),
		1855	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1856	#layout => string,
1483	};	1857	};
1484		1858
1485	for (split /\n/, $spec) {	1859	for (split /\n/, $spec) {
1486	my ($k, $v) = split /\s+/, $_, 2;	1860	my ($k, $v) = split /\s+/, $_, 2;
1487		1861
…		…
1491	$rmp	1865	$rmp
1492	}	1866	}
1493		1867
1494	sub prepare_random_map {	1868	sub prepare_random_map {
1495	my ($exit) = @_;	1869	my ($exit) = @_;
		1870
		1871	my $guard = cf::lock_acquire "exit_prepare:$exit";
1496		1872
1497	# all this does is basically replace the /! path by	1873	# all this does is basically replace the /! path by
1498	# a new random map path (?random/...) with a seed	1874	# a new random map path (?random/...) with a seed
1499	# that depends on the exit object	1875	# that depends on the exit object
1500		1876
1501	my $rmp = parse_random_map_params $exit->msg;	1877	my $rmp = parse_random_map_params $exit->msg;
1502		1878
1503	if ($exit->map) {	1879	if ($exit->map) {
1504	$rmp->{region} = $exit->map->region_name;	1880	$rmp->{region} = $exit->region->name;
1505	$rmp->{origin_map} = $exit->map->path;	1881	$rmp->{origin_map} = $exit->map->path;
1506	$rmp->{origin_x} = $exit->x;	1882	$rmp->{origin_x} = $exit->x;
1507	$rmp->{origin_y} = $exit->y;	1883	$rmp->{origin_y} = $exit->y;
1508	}	1884	}
1509		1885
1510	$rmp->{random_seed} ||= $exit->random_seed;	1886	$rmp->{random_seed} ||= $exit->random_seed;
1511		1887
1512	my $data = cf::to_json $rmp;	1888	my $data = cf::to_json $rmp;
1513	my $md5 = Digest::MD5::md5_hex $data;	1889	my $md5 = Digest::MD5::md5_hex $data;
		1890	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1514		1891
1515	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1892	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1516	aio_write $fh, 0, (length $data), $data, 0;	1893	aio_write $fh, 0, (length $data), $data, 0;
		1894	undef $fh;
		1895	aio_rename "$meta~", $meta;
1517		1896
1518	$exit->slaying ("?random/$md5");	1897	$exit->slaying ("?random/$md5");
1519	$exit->msg (undef);	1898	$exit->msg (undef);
1520	}	1899	}
1521	}	1900	}
…		…
1523	sub cf::object::player::enter_exit {	1902	sub cf::object::player::enter_exit {
1524	my ($self, $exit) = @_;	1903	my ($self, $exit) = @_;
1525		1904
1526	return unless $self->type == cf::PLAYER;	1905	return unless $self->type == cf::PLAYER;
1527		1906
		1907	if ($exit->slaying eq "/!") {
		1908	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1909	cf::sync_job { prepare_random_map $exit };
		1910	}
		1911
		1912	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1913	my $hp = $exit->stats->hp;
		1914	my $sp = $exit->stats->sp;
		1915
1528	$self->enter_link;	1916	$self->enter_link;
1529		1917
1530	(Coro::async {	1918	(async {
		1919	$self->deactivate_recursive; # just to be sure
1531	unless (eval {	1920	unless (eval {
1532		1921	$self->goto ($slaying, $hp, $sp);
1533	prepare_random_map $exit
1534	if $exit->slaying eq "/!";
1535
1536	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1537	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1538		1922
1539	1;	1923	1;
1540	}) {	1924	}) {
1541	$self->message ("Something went wrong deep within the crossfire server. "	1925	$self->message ("Something went wrong deep within the crossfire server. "
1542	. "I'll try to bring you back to the map you were before. "	1926	. "I'll try to bring you back to the map you were before. "
1543	. "Please report this to the dungeon master",	1927	. "Please report this to the dungeon master!",
1544	cf::NDI_UNIQUE | cf::NDI_RED);	1928	cf::NDI_UNIQUE | cf::NDI_RED);
1545		1929
1546	warn "ERROR in enter_exit: $@";	1930	warn "ERROR in enter_exit: $@";
1547	$self->leave_link;	1931	$self->leave_link;
1548	}	1932	}
…		…
1599	on_reply => sub {	1983	on_reply => sub {
1600	my ($ns, $msg) = @_;	1984	my ($ns, $msg) = @_;
1601		1985
1602	# this weird shuffling is so that direct followup queries	1986	# this weird shuffling is so that direct followup queries
1603	# get handled first	1987	# get handled first
1604	my $queue = delete $ns->{query_queue};	1988	my $queue = delete $ns->{query_queue}
		1989	or return; # be conservative, not sure how that can happen, but we saw a crash here
1605		1990
1606	(shift @$queue)->[1]->($msg);	1991	(shift @$queue)->[1]->($msg);
1607		1992
1608	push @{ $ns->{query_queue} }, @$queue;	1993	push @{ $ns->{query_queue} }, @$queue;
1609		1994
…		…
1615	}	2000	}
1616	}	2001	}
1617	},	2002	},
1618	);	2003	);
1619		2004
1620	=item $client->coro (\&cb)	2005	=item $client->async (\&cb)
1621		2006
1622	Create a new coroutine, running the specified callback. The coroutine will	2007	Create a new coroutine, running the specified callback. The coroutine will
1623	be automatically cancelled when the client gets destroyed (e.g. on logout,	2008	be automatically cancelled when the client gets destroyed (e.g. on logout,
1624	or loss of connection).	2009	or loss of connection).
1625		2010
1626	=cut	2011	=cut
1627		2012
1628	sub cf::client::coro {	2013	sub cf::client::async {
1629	my ($self, $cb) = @_;	2014	my ($self, $cb) = @_;
1630		2015
1631	my $coro; $coro = async {	2016	my $coro = &Coro::async ($cb);
1632	eval {
1633	$cb->();
1634	};
1635	warn $@ if $@;
1636	};
1637		2017
1638	$coro->on_destroy (sub {	2018	$coro->on_destroy (sub {
1639	delete $self->{_coro}{$coro+0};	2019	delete $self->{_coro}{$coro+0};
1640	});	2020	});
1641		2021
…		…
1813		2193
1814	{	2194	{
1815	my $path = cf::localdir . "/database.pst";	2195	my $path = cf::localdir . "/database.pst";
1816		2196
1817	sub db_load() {	2197	sub db_load() {
1818	warn "loading database $path\n";#d# remove later
1819	$DB = stat $path ? Storable::retrieve $path : { };	2198	$DB = stat $path ? Storable::retrieve $path : { };
1820	}	2199	}
1821		2200
1822	my $pid;	2201	my $pid;
1823		2202
1824	sub db_save() {	2203	sub db_save() {
1825	warn "saving database $path\n";#d# remove later
1826	waitpid $pid, 0 if $pid;	2204	waitpid $pid, 0 if $pid;
1827	if (0 == ($pid = fork)) {	2205	if (0 == ($pid = fork)) {
1828	$DB->{_meta}{version} = 1;	2206	$DB->{_meta}{version} = 1;
1829	Storable::nstore $DB, "$path~";	2207	Storable::nstore $DB, "$path~";
1830	rename "$path~", $path;	2208	rename "$path~", $path;
…		…
1837	sub db_sync() {	2215	sub db_sync() {
1838	db_save if $dirty;	2216	db_save if $dirty;
1839	undef $dirty;	2217	undef $dirty;
1840	}	2218	}
1841		2219
1842	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2220	my $idle = Event->idle (
1843	db_sync;	2221	reentrant => 0,
		2222	min => 10,
		2223	max => 20,
		2224	repeat => 0,
		2225	data => WF_AUTOCANCEL,
		2226	cb => \&db_sync,
1844	});	2227	);
1845		2228
1846	sub db_dirty() {	2229	sub db_dirty() {
1847	$dirty = 1;	2230	$dirty = 1;
1848	$idle->start;	2231	$idle->start;
1849	}	2232	}
…		…
1878	open my $fh, "<:utf8", cf::confdir . "/config"	2261	open my $fh, "<:utf8", cf::confdir . "/config"
1879	or return;	2262	or return;
1880		2263
1881	local $/;	2264	local $/;
1882	*CFG = YAML::Syck::Load <$fh>;	2265	*CFG = YAML::Syck::Load <$fh>;
		2266
		2267	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2268
		2269	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2270	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2271
		2272	if (exists $CFG{mlockall}) {
		2273	eval {
		2274	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2275	and die "WARNING: m(un)lockall failed: $!\n";
		2276	};
		2277	warn $@ if $@;
		2278	}
1883	}	2279	}
1884		2280
1885	sub main {	2281	sub main {
1886	# we must not ever block the main coroutine	2282	# we must not ever block the main coroutine
1887	local $Coro::idle = sub {	2283	local $Coro::idle = sub {
1888	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2284	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1889	(Coro::unblock_sub {	2285	(async {
1890	Event::one_event;	2286	Event::one_event;
1891	})->();	2287	})->prio (Coro::PRIO_MAX);
1892	};	2288	};
1893		2289
1894	cfg_load;	2290	cfg_load;
1895	db_load;	2291	db_load;
1896	load_extensions;	2292	load_extensions;
		2293
		2294	$TICK_WATCHER->start;
1897	Event::loop;	2295	Event::loop;
1898	}	2296	}
1899		2297
1900	#############################################################################	2298	#############################################################################
1901	# initialisation	2299	# initialisation and cleanup
		2300
		2301	# install some emergency cleanup handlers
		2302	BEGIN {
		2303	for my $signal (qw(INT HUP TERM)) {
		2304	Event->signal (
		2305	reentrant => 0,
		2306	data => WF_AUTOCANCEL,
		2307	signal => $signal,
		2308	prio => 0,
		2309	cb => sub {
		2310	cf::cleanup "SIG$signal";
		2311	},
		2312	);
		2313	}
		2314	}
		2315
		2316	sub emergency_save() {
		2317	my $freeze_guard = cf::freeze_mainloop;
		2318
		2319	warn "enter emergency perl save\n";
		2320
		2321	cf::sync_job {
		2322	# use a peculiar iteration method to avoid tripping on perl
		2323	# refcount bugs in for. also avoids problems with players
		2324	# and maps saved/destroyed asynchronously.
		2325	warn "begin emergency player save\n";
		2326	for my $login (keys %cf::PLAYER) {
		2327	my $pl = $cf::PLAYER{$login} or next;
		2328	$pl->valid or next;
		2329	$pl->save;
		2330	}
		2331	warn "end emergency player save\n";
		2332
		2333	warn "begin emergency map save\n";
		2334	for my $path (keys %cf::MAP) {
		2335	my $map = $cf::MAP{$path} or next;
		2336	$map->valid or next;
		2337	$map->save;
		2338	}
		2339	warn "end emergency map save\n";
		2340	};
		2341
		2342	warn "leave emergency perl save\n";
		2343	}
1902		2344
1903	sub reload() {	2345	sub reload() {
1904	# can/must only be called in main	2346	# can/must only be called in main
1905	if ($Coro::current != $Coro::main) {	2347	if ($Coro::current != $Coro::main) {
1906	warn "can only reload from main coroutine\n";	2348	warn "can only reload from main coroutine";
1907	return;	2349	return;
1908	}	2350	}
1909		2351
1910	warn "reloading...";	2352	warn "reloading...";
1911		2353
1912	local $FREEZE = 1;	2354	warn "cancelling server ticker";
		2355	$TICK_WATCHER->cancel;
		2356
1913	cf::emergency_save;	2357	cf::emergency_save;
1914		2358
1915	eval {	2359	eval {
1916	# if anything goes wrong in here, we should simply crash as we already saved	2360	# if anything goes wrong in here, we should simply crash as we already saved
1917		2361
1918	# cancel all watchers	2362	warn "syncing database to disk";
		2363	cf::db_sync;
		2364
		2365	warn "cancelling all WF_AUTOCANCEL watchers";
1919	for (Event::all_watchers) {	2366	for (Event::all_watchers) {
1920	$_->cancel if $_->data & WF_AUTOCANCEL;	2367	$_->cancel if $_->data & WF_AUTOCANCEL;
1921	}	2368	}
1922		2369
		2370	warn "flushing outstanding aio requests";
		2371	for (;;) {
		2372	IO::AIO::flush;
		2373	Coro::cede;
		2374	last unless IO::AIO::nreqs;
		2375	warn "iterate...";
		2376	}
		2377
1923	# cancel all extension coros	2378	warn "cancelling all extension coros";
1924	$_->cancel for values %EXT_CORO;	2379	$_->cancel for values %EXT_CORO;
1925	%EXT_CORO = ();	2380	%EXT_CORO = ();
1926		2381
1927	# unload all extensions	2382	warn "removing commands";
1928	for (@exts) {	2383	%COMMAND = ();
		2384
		2385	warn "removing ext commands";
		2386	%EXTCMD = ();
		2387
		2388	warn "unloading/nuking all extensions";
		2389	for my $pkg (@EXTS) {
1929	warn "unloading <$_>";	2390	warn "... unloading $pkg";
1930	unload_extension $_;	2391
		2392	if (my $cb = $pkg->can ("unload")) {
		2393	eval {
		2394	$cb->($pkg);
		2395	1
		2396	} or warn "$pkg unloaded, but with errors: $@";
1931	}	2397	}
1932		2398
		2399	warn "... nuking $pkg";
		2400	Symbol::delete_package $pkg;
		2401	}
		2402
1933	# unload all modules loaded from $LIBDIR	2403	warn "unloading all perl modules loaded from $LIBDIR";
1934	while (my ($k, $v) = each %INC) {	2404	while (my ($k, $v) = each %INC) {
1935	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2405	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1936		2406
1937	warn "removing <$k>";	2407	warn "... unloading $k";
1938	delete $INC{$k};	2408	delete $INC{$k};
1939		2409
1940	$k =~ s/\.pm$//;	2410	$k =~ s/\.pm$//;
1941	$k =~ s/\//::/g;	2411	$k =~ s/\//::/g;
1942		2412
…		…
1945	}	2415	}
1946		2416
1947	Symbol::delete_package $k;	2417	Symbol::delete_package $k;
1948	}	2418	}
1949		2419
1950	# sync database to disk
1951	cf::db_sync;
1952	IO::AIO::flush;
1953
1954	# get rid of safe::, as good as possible	2420	warn "getting rid of safe::, as good as possible";
1955	Symbol::delete_package "safe::$_"	2421	Symbol::delete_package "safe::$_"
1956	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2422	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1957		2423
1958	# remove register_script_function callbacks
1959	# TODO
1960
1961	# unload cf.pm "a bit"	2424	warn "unloading cf.pm \"a bit\"";
1962	delete $INC{"cf.pm"};	2425	delete $INC{"cf.pm"};
1963		2426
1964	# don't, removes xs symbols, too,	2427	# don't, removes xs symbols, too,
1965	# and global variables created in xs	2428	# and global variables created in xs
1966	#Symbol::delete_package __PACKAGE__;	2429	#Symbol::delete_package __PACKAGE__;
1967		2430
1968	# reload cf.pm	2431	warn "unload completed, starting to reload now";
		2432
1969	warn "reloading cf.pm";	2433	warn "reloading cf.pm";
1970	require cf;	2434	require cf;
1971	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2435	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1972		2436
1973	# load config and database again	2437	warn "loading config and database again";
1974	cf::cfg_load;	2438	cf::cfg_load;
1975	cf::db_load;	2439	cf::db_load;
1976		2440
1977	# load extensions
1978	warn "load extensions";	2441	warn "loading extensions";
1979	cf::load_extensions;	2442	cf::load_extensions;
1980		2443
1981	# reattach attachments to objects	2444	warn "reattaching attachments to objects/players";
1982	warn "reattach";
1983	_global_reattach;	2445	_global_reattach;
		2446	warn "reattaching attachments to maps";
		2447	reattach $_ for values %MAP;
		2448
		2449	warn "restarting server ticker";
		2450
		2451	$TICK_WATCHER->start;
1984	};	2452	};
1985		2453
1986	if ($@) {	2454	if ($@) {
1987	warn $@;	2455	warn $@;
1988	warn "error while reloading, exiting.";	2456	warn "error while reloading, exiting.";
1989	exit 1;	2457	exit 1;
1990	}	2458	}
1991		2459
1992	warn "reloaded successfully";	2460	warn "reloaded";
1993	};	2461	};
1994		2462
1995	#############################################################################	2463	our $RELOAD_WATCHER; # used only during reload
1996
1997	unless ($LINK_MAP) {
1998	$LINK_MAP = cf::map::new;
1999
2000	$LINK_MAP->width (41);
2001	$LINK_MAP->height (41);
2002	$LINK_MAP->alloc;
2003	$LINK_MAP->path ("{link}");
2004	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2005	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2006
2007	# dirty hack because... archetypes are not yet loaded
2008	Event->timer (
2009	after => 2,
2010	cb => sub {
2011	$_[0]->w->cancel;
2012
2013	# provide some exits "home"
2014	my $exit = cf::object::new "exit";
2015
2016	$exit->slaying ($EMERGENCY_POSITION->[0]);
2017	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2018	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2019
2020	$LINK_MAP->insert ($exit->clone, 19, 19);
2021	$LINK_MAP->insert ($exit->clone, 19, 20);
2022	$LINK_MAP->insert ($exit->clone, 19, 21);
2023	$LINK_MAP->insert ($exit->clone, 20, 19);
2024	$LINK_MAP->insert ($exit->clone, 20, 21);
2025	$LINK_MAP->insert ($exit->clone, 21, 19);
2026	$LINK_MAP->insert ($exit->clone, 21, 20);
2027	$LINK_MAP->insert ($exit->clone, 21, 21);
2028
2029	$exit->destroy;
2030	});
2031
2032	$LINK_MAP->{deny_save} = 1;
2033	$LINK_MAP->{deny_reset} = 1;
2034
2035	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2036	}
2037
2038	register "<global>", __PACKAGE__;
2039		2464
2040	register_command "reload" => sub {	2465	register_command "reload" => sub {
2041	my ($who, $arg) = @_;	2466	my ($who, $arg) = @_;
2042		2467
2043	if ($who->flag (FLAG_WIZ)) {	2468	if ($who->flag (FLAG_WIZ)) {
2044	$who->message ("start of reload.");	2469	$who->message ("reloading server.");
		2470
		2471	# doing reload synchronously and two reloads happen back-to-back,
		2472	# coro crashes during coro_state_free->destroy here.
		2473
		2474	$RELOAD_WATCHER ||= Event->timer (
		2475	reentrant => 0,
		2476	after => 0,
		2477	data => WF_AUTOCANCEL,
		2478	cb => sub {
2045	reload;	2479	reload;
2046	$who->message ("end of reload.");	2480	undef $RELOAD_WATCHER;
		2481	},
		2482	);
2047	}	2483	}
2048	};	2484	};
2049		2485
2050	unshift @INC, $LIBDIR;	2486	unshift @INC, $LIBDIR;
		2487
		2488	my $bug_warning = 0;
2051		2489
2052	$TICK_WATCHER = Event->timer (	2490	$TICK_WATCHER = Event->timer (
2053	reentrant => 0,	2491	reentrant => 0,
		2492	parked => 1,
2054	prio => 0,	2493	prio => 0,
2055	at => $NEXT_TICK || $TICK,	2494	at => $NEXT_TICK || $TICK,
2056	data => WF_AUTOCANCEL,	2495	data => WF_AUTOCANCEL,
2057	cb => sub {	2496	cb => sub {
2058	unless ($FREEZE) {	2497	if ($Coro::current != $Coro::main) {
		2498	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2499	unless ++$bug_warning > 10;
		2500	return;
		2501	}
		2502
		2503	$NOW = Event::time;
		2504
2059	cf::server_tick; # one server iteration	2505	cf::server_tick; # one server iteration
2060	$RUNTIME += $TICK;	2506	$RUNTIME += $TICK;
2061	}
2062
2063	$NEXT_TICK += $TICK;	2507	$NEXT_TICK += $TICK;
		2508
		2509	$WAIT_FOR_TICK->broadcast;
		2510	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2511
		2512	Event::sweep;
		2513	Coro::cede_notself;
		2514
		2515	# my $AFTER = Event::time;
		2516	# warn $AFTER - $NOW;#d#
2064		2517
2065	# if we are delayed by four ticks or more, skip them all	2518	# if we are delayed by four ticks or more, skip them all
2066	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2519	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2067		2520
2068	$TICK_WATCHER->at ($NEXT_TICK);	2521	$TICK_WATCHER->at ($NEXT_TICK);
2069	$TICK_WATCHER->start;	2522	$TICK_WATCHER->start;
2070	},	2523	},
2071	);	2524	);
2072		2525
2073	IO::AIO::max_poll_time $TICK * 0.2;	2526	IO::AIO::max_poll_time $TICK * 0.1;
2074		2527
2075	Event->io (	2528	undef $Coro::AIO::WATCHER;
		2529	$AIO_POLL_WATCHER = Event->io (
		2530	reentrant => 0,
2076	fd => IO::AIO::poll_fileno,	2531	fd => IO::AIO::poll_fileno,
2077	poll => 'r',	2532	poll => 'r',
2078	prio => 5,	2533	prio => 6,
2079	data => WF_AUTOCANCEL,	2534	data => WF_AUTOCANCEL,
2080	cb => \&IO::AIO::poll_cb,	2535	cb => \&IO::AIO::poll_cb,
2081	);	2536	);
2082		2537
2083	Event->timer (	2538	$WRITE_RUNTIME_WATCHER = Event->timer (
		2539	reentrant => 0,
2084	data => WF_AUTOCANCEL,	2540	data => WF_AUTOCANCEL,
2085	after => 0,	2541	after => 1,
2086	interval => 10,	2542	interval => 10,
2087	cb => sub {	2543	prio => 6, # keep it lowest so it acts like a watchdog
2088	(Coro::unblock_sub {	2544	cb => Coro::unblock_sub {
2089	write_runtime	2545	write_runtime
2090	or warn "ERROR: unable to write runtime file: $!";	2546	or warn "ERROR: unable to write runtime file: $!";
2091	})->();
2092	},	2547	},
2093	);	2548	);
2094		2549
		2550	END { cf::emergency_save }
		2551
2095	1	2552	1
2096		2553

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