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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 1.183 by root, Fri Jan 19 19:42:37 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	86	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
78		87
79	#############################################################################	88	#############################################################################
80		89
81	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
82		91
…		…
106		115
107	=item %cf::CFG	116	=item %cf::CFG
108		117
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	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.
111		127
112	=back	128	=back
113		129
114	=cut	130	=cut
115		131
…		…
119	utf8::encode $msg;	135	utf8::encode $msg;
120		136
121	$msg .= "\n"	137	$msg .= "\n"
122	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
123		139
124	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
125	};	141	};
126	}	142	}
127		143
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		163
148	$Event::DIED = sub {	164	$Event::DIED = sub {
149	warn "error in event callback: @_";	165	warn "error in event callback: @_";
150	};	166	};
151		167
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
157		169
158	=over 4	170	=over 4
159		171
		172	=item dumpval $ref
		173
160	=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	}
161		194
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		196
164	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
165		198
…		…
180		213
181	sub to_json($) {	214	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
184	}	217	}
		218
		219	=item cf::lock_wait $string
		220
		221	Wait until the given lock is available. See cf::lock_acquire.
		222
		223	=item my $lock = cf::lock_acquire $string
		224
		225	Wait until the given lock is available and then acquires it and returns
		226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		227	for example when the coroutine gets canceled), the lock is automatically
		228	returned.
		229
		230	Lock names should begin with a unique identifier (for example, cf::map::find
		231	uses map_find and cf::map::load uses map_load).
		232
		233	=cut
		234
		235	our %LOCK;
		236
		237	sub lock_wait($) {
		238	my ($key) = @_;
		239
		240	# wait for lock, if any
		241	while ($LOCK{$key}) {
		242	push @{ $LOCK{$key} }, $Coro::current;
		243	Coro::schedule;
		244	}
		245	}
		246
		247	sub lock_acquire($) {
		248	my ($key) = @_;
		249
		250	# wait, to be sure we are not locked
		251	lock_wait $key;
		252
		253	$LOCK{$key} = [];
		254
		255	Coro::guard {
		256	# wake up all waiters, to be on the safe side
		257	$_->ready for @{ delete $LOCK{$key} };
		258	}
		259	}
		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	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
185		282
186	=item cf::sync_job { BLOCK }	283	=item cf::sync_job { BLOCK }
187		284
188	The design of crossfire+ requires that the main coro ($Coro::main) is	285	The design of crossfire+ requires that the main coro ($Coro::main) is
189	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
…		…
203	# this is the main coro, too bad, we have to block	300	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	301	# till the operation succeeds, freezing the server :/
205		302
206	# TODO: use suspend/resume instead	303	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	304	# (but this is cancel-safe)
208	local $FREEZE = 1;	305	my $freeze_guard = freeze_mainloop;
209		306
210	my $busy = 1;	307	my $busy = 1;
211	my @res;	308	my @res;
212		309
213	(Coro::async {	310	(async {
214	@res = eval { $job->() };	311	@res = eval { $job->() };
215	warn $@ if $@;	312	warn $@ if $@;
216	undef $busy;	313	undef $busy;
217	})->prio (Coro::PRIO_MAX);	314	})->prio (Coro::PRIO_MAX);
218		315
219	while ($busy) {	316	while ($busy) {
220	Coro::cede_notself;	317	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	318	}
223		319
224	wantarray ? @res : $res[0]	320	wantarray ? @res : $res[0]
225	} else {	321	} else {
226	# we are in another coroutine, how wonderful, everything just works	322	# we are in another coroutine, how wonderful, everything just works
227		323
228	$job->()	324	$job->()
229	}	325	}
230	}	326	}
231		327
232	=item $coro = cf::coro { BLOCK }	328	=item $coro = cf::async_ext { BLOCK }
233		329
234	Creates and returns a new coro. This coro is automcatially being canceled	330	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	331	extension calling this is being unloaded.
236		332
237	=cut	333	=cut
238		334
239	sub coro(&) {	335	sub async_ext(&) {
240	my $cb = shift;	336	my $cb = shift;
241		337
242	my $coro; $coro = async {	338	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		339
249	$coro->on_destroy (sub {	340	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	341	delete $EXT_CORO{$coro+0};
251	});	342	});
252	$EXT_CORO{$coro+0} = $coro;	343	$EXT_CORO{$coro+0} = $coro;
…		…
277	}	368	}
278		369
279	=back	370	=back
280		371
281	=cut	372	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($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		373
403	#############################################################################	374	#############################################################################
404		375
405	=head2 ATTACHABLE OBJECTS	376	=head2 ATTACHABLE OBJECTS
406		377
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	503	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	504	our @CB_MAP = ();
534		505
535	my %attachment;	506	my %attachment;
536		507
		508	sub cf::attachable::thawer_merge {
		509	# simply override everything except _meta
		510	local $_[0]{_meta};
		511	%{$_[0]} = %{$_[1]};
		512	}
		513
537	sub _attach_cb($$$$) {	514	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	515	my ($registry, $event, $prio, $cb) = @_;
539		516
540	use sort 'stable';	517	use sort 'stable';
541		518
…		…
712	# object support	689	# object support
713		690
714	sub reattach {	691	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	692	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	693	my ($obj) = @_;
		694
		695	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		696
718	my $registry = $obj->registry;	697	my $registry = $obj->registry;
719		698
720	@$registry = ();	699	@$registry = ();
721		700
…		…
817	(aio_load "$filename.pst", $av) >= 0	796	(aio_load "$filename.pst", $av) >= 0
818	or return;	797	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	798	$av = eval { (Storable::thaw $av)->{objs} };
820	}	799	}
821		800
		801	warn sprintf "loading %s (%d)\n",
		802	$filename, length $data, scalar @{$av || []};#d#
822	return ($data, $av);	803	return ($data, $av);
823	}	804	}
824		805
825	#############################################################################	806	#############################################################################
826	# command handling &c	807	# command handling &c
…		…
851	=cut	832	=cut
852		833
853	sub register_extcmd {	834	sub register_extcmd {
854	my ($name, $cb) = @_;	835	my ($name, $cb) = @_;
855		836
856	my $caller = caller;
857	#warn "registering extcmd '$name' to '$caller'";
858
859	$EXTCMD{$name} = [$cb, $caller];	837	$EXTCMD{$name} = $cb;
860	}	838	}
861		839
862	cf::player->attach (	840	cf::player->attach (
863	on_command => sub {	841	on_command => sub {
864	my ($pl, $name, $params) = @_;	842	my ($pl, $name, $params) = @_;
…		…
877		855
878	my $msg = eval { from_json $buf };	856	my $msg = eval { from_json $buf };
879		857
880	if (ref $msg) {	858	if (ref $msg) {
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
882	if (my %reply = $cb->[0]->($pl, $msg)) {	860	if (my %reply = $cb->($pl, $msg)) {
883	$pl->ext_reply ($msg->{msgid}, %reply);	861	$pl->ext_reply ($msg->{msgid}, %reply);
884	}	862	}
885	}	863	}
886	} else {	864	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
889		867
890	cf::override;	868	cf::override;
891	},	869	},
892	);	870	);
893		871
894	sub register {
895	my ($base, $pkg) = @_;
896
897	#TODO
898	}
899
900	sub load_extension {	872	sub load_extension {
901	my ($path) = @_;	873	my ($path) = @_;
902		874
903	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
904	my $base = $1;	876	my $base = $1;
905	my $pkg = $1;	877	my $pkg = $1;
906	$pkg =~ s/[^[:word:]]/_/g;	878	$pkg =~ s/[^[:word:]]/_/g;
907	$pkg = "ext::$pkg";	879	$pkg = "ext::$pkg";
908		880
909	warn "loading '$path' into '$pkg'\n";	881	warn "... loading '$path' into '$pkg'\n";
910		882
911	open my $fh, "<:utf8", $path	883	open my $fh, "<:utf8", $path
912	or die "$path: $!";	884	or die "$path: $!";
913		885
914	my $source =	886	my $source =
915	"package $pkg; use strict; use utf8;\n"	887	"package $pkg; use strict; use utf8;\n"
916	. "#line 1 \"$path\"\n{\n"	888	. "#line 1 \"$path\"\n{\n"
917	. (do { local $/; <$fh> })	889	. (do { local $/; <$fh> })
918	. "\n};\n1";	890	. "\n};\n1";
919		891
920	eval $source	892	unless (eval $source) {
921	or die $@ ? "$path: $@\n"	893	my $msg = $@ ? "$path: $@\n"
922	: "extension disabled.\n";	894	: "extension disabled.\n";
923		895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
924	push @exts, $pkg;	896	warn $@;
925	$ext_pkg{$base} = $pkg;	897	warn "mandatory extension failed to load, exiting.\n";
926		898	exit 1;
927	# no strict 'refs';	899	}
928	# @{"$pkg\::ISA"} = ext::;	900	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	# }	901	}
943		902
944	# remove commands	903	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	}	904	}
969		905
970	sub load_extensions {	906	sub load_extensions {
971	for my $ext (<$LIBDIR/*.ext>) {	907	for my $ext (<$LIBDIR/*.ext>) {
972	next unless -r $ext;	908	next unless -r $ext;
…		…
976	} or warn "$ext not loaded: $@";	912	} or warn "$ext not loaded: $@";
977	}	913	}
978	}	914	}
979		915
980	#############################################################################	916	#############################################################################
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		917
1018	=head2 CORE EXTENSIONS	918	=head2 CORE EXTENSIONS
1019		919
1020	Functions and methods that extend core crossfire objects.	920	Functions and methods that extend core crossfire objects.
1021		921
		922	=cut
		923
		924	package cf::player;
		925
		926	use Coro::AIO;
		927
1022	=head3 cf::player	928	=head3 cf::player
1023		929
1024	=over 4	930	=over 4
1025		931
1026	=item cf::player::exists $login	932	=item cf::player::find $login
1027		933
1028	Returns true when the given account exists.	934	Returns the given player object, loading it if necessary (might block).
1029		935
1030	=cut	936	=cut
1031		937
1032	sub cf::player::exists($) {	938	sub playerdir($) {
1033	cf::player::find $_[0]	939	cf::localdir
1034	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	940	. "/"
		941	. cf::playerdir
		942	. "/"
		943	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		944	}
		945
		946	sub path($) {
		947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		948
		949	(playerdir $login) . "/$login.pl"
		950	}
		951
		952	sub find_active($) {
		953	$cf::PLAYER{$_[0]}
		954	and $cf::PLAYER{$_[0]}->active
		955	and $cf::PLAYER{$_[0]}
		956	}
		957
		958	sub exists($) {
		959	my ($login) = @_;
		960
		961	$cf::PLAYER{$login}
		962	or cf::sync_job { !aio_stat path $login }
		963	}
		964
		965	sub find($) {
		966	return $cf::PLAYER{$_[0]} || do {
		967	my $login = $_[0];
		968
		969	my $guard = cf::lock_acquire "user_find:$login";
		970
		971	$cf::PLAYER{$_[0]} || do {
		972	my $pl = load_pl path $login
		973	or return;
		974	$cf::PLAYER{$login} = $pl
		975	}
		976	}
		977	}
		978
		979	sub save($) {
		980	my ($pl) = @_;
		981
		982	return if $pl->{deny_save};
		983
		984	my $path = path $pl;
		985	my $guard = cf::lock_acquire "user_save:$path";
		986
		987	return if $pl->{deny_save};
		988
		989	aio_mkdir playerdir $pl, 0770;
		990	$pl->{last_save} = $cf::RUNTIME;
		991
		992	$pl->save_pl ($path);
		993	Coro::cede;
		994	}
		995
		996	sub new($) {
		997	my ($login) = @_;
		998
		999	my $self = create;
		1000
		1001	$self->ob->name ($login);
		1002	$self->{deny_save} = 1;
		1003
		1004	$cf::PLAYER{$login} = $self;
		1005
		1006	$self
		1007	}
		1008
		1009	=item $pl->quit_character
		1010
		1011	Nukes the player without looking back. If logged in, the connection will
		1012	be destroyed. May block for a long time.
		1013
		1014	=cut
		1015
		1016	sub quit_character {
		1017	my ($pl) = @_;
		1018
		1019	$pl->{deny_save} = 1;
		1020	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1021
		1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1023	$pl->deactivate;
		1024	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1025	$pl->ns->destroy if $pl->ns;
		1026
		1027	my $path = playerdir $pl;
		1028	my $temp = "$path~$cf::RUNTIME~deleting~";
		1029	aio_rename $path, $temp;
		1030	delete $cf::PLAYER{$pl->ob->name};
		1031	$pl->destroy;
		1032	IO::AIO::aio_rmtree $temp;
		1033	}
		1034
		1035	=item cf::player::list_logins
		1036
		1037	Returns am arrayref of all valid playernames in the system, can take a
		1038	while and may block, so not sync_job-capable, ever.
		1039
		1040	=cut
		1041
		1042	sub list_logins {
		1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1044	or return [];
		1045
		1046	my @logins;
		1047
		1048	for my $login (@$dirs) {
		1049	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1050	aio_read $fh, 0, 512, my $buf, 0 or next;
		1051	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1052
		1053	utf8::decode $login;
		1054	push @logins, $login;
		1055	}
		1056
		1057	\@logins
		1058	}
		1059
		1060	=item $player->maps
		1061
		1062	Returns an arrayref of map paths that are private for this
		1063	player. May block.
		1064
		1065	=cut
		1066
		1067	sub maps($) {
		1068	my ($pl) = @_;
		1069
		1070	my $files = aio_readdir playerdir $pl
		1071	or return;
		1072
		1073	my @paths;
		1074
		1075	for (@$files) {
		1076	utf8::decode $_;
		1077	next if /\.(?:pl|pst)$/;
		1078	next unless /^$PATH_SEP/o;
		1079
		1080	s/\.map$//;
		1081	push @paths, "~" . $pl->ob->name . "/" . $_;
		1082	}
		1083
		1084	\@paths
1035	}	1085	}
1036		1086
1037	=item $player->ext_reply ($msgid, $msgtype, %msg)	1087	=item $player->ext_reply ($msgid, $msgtype, %msg)
1038		1088
1039	Sends an ext reply to the player.	1089	Sends an ext reply to the player.
1040		1090
1041	=cut	1091	=cut
1042		1092
1043	sub cf::player::ext_reply($$$%) {	1093	sub ext_reply($$$%) {
1044	my ($self, $id, %msg) = @_;	1094	my ($self, $id, %msg) = @_;
1045		1095
1046	$msg{msgid} = $id;	1096	$msg{msgid} = $id;
1047		1097
1048	$self->send ("ext " . to_json \%msg);	1098	$self->send ("ext " . cf::to_json \%msg);
1049	}	1099	}
		1100
		1101	package cf;
1050		1102
1051	=back	1103	=back
1052		1104
1053		1105
1054	=head3 cf::map	1106	=head3 cf::map
…		…
1060	package cf::map;	1112	package cf::map;
1061		1113
1062	use Fcntl;	1114	use Fcntl;
1063	use Coro::AIO;	1115	use Coro::AIO;
1064		1116
		1117	use overload
		1118	'""' => \&as_string,
		1119	fallback => 1;
		1120
1065	our $MAX_RESET = 7200;	1121	our $MAX_RESET = 3600;
1066	our $DEFAULT_RESET = 3600;	1122	our $DEFAULT_RESET = 3000;
1067		1123
1068	sub generate_random_map {	1124	sub generate_random_map {
1069	my ($path, $rmp) = @_;	1125	my ($self, $rmp) = @_;
1070
1071	# mit "rum" bekleckern, nicht	1126	# mit "rum" bekleckern, nicht
1072	cf::map::_create_random_map	1127	$self->_create_random_map (
1073	$path,
1074	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1075	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1076	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1077	$rmp->{exit_on_final_map},	1131	$rmp->{exit_on_final_map},
1078	$rmp->{xsize}, $rmp->{ysize},	1132	$rmp->{xsize}, $rmp->{ysize},
1079	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1080	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1081	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1082	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1083	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1084	(cf::region::find $rmp->{region})	1138	(cf::region::find $rmp->{region}), $rmp->{custom}
		1139	)
		1140	}
		1141
		1142	sub register {
		1143	my (undef, $regex) = @_;
		1144	my $pkg = caller;
		1145
		1146	no strict;
		1147	push @{"$pkg\::ISA"}, __PACKAGE__;
		1148
		1149	$EXT_MAP{$pkg} = qr<$regex>;
		1150	}
		1151
		1152	# also paths starting with '/'
		1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};
		1154
		1155	sub thawer_merge {
		1156	my ($self, $merge) = @_;
		1157
		1158	# we have to keep some variables in memory intact
		1159	local $self->{path};
		1160	local $self->{load_path};
		1161	local $self->{deny_save};
		1162	local $self->{deny_reset};
		1163
		1164	$self->SUPER::thawer_merge ($merge);
		1165	}
		1166
		1167	sub normalise {
		1168	my ($path, $base) = @_;
		1169
		1170	# map plan:
		1171	#
		1172	# /! non-realised random map exit (special hack!)
		1173	# {... are special paths that are not being touched
		1174	# ?xxx/... are special absolute paths
		1175	# ?random/... random maps
		1176	# /... normal maps
		1177	# ~user/... per-player map of a specific user
		1178
		1179	$path =~ s/$PATH_SEP/\//go;
		1180
		1181	# treat it as relative path if it starts with
		1182	# something that looks reasonable
		1183	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1184	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1185
		1186	$base =~ s{[^/]+/?$}{};
		1187	$path = "$base/$path";
		1188	}
		1189
		1190	for ($path) {
		1191	redo if s{//}{/};
		1192	redo if s{/\.?/}{/};
		1193	redo if s{/[^/]+/\.\./}{/};
		1194	}
		1195
		1196	$path
		1197	}
		1198
		1199	sub new_from_path {
		1200	my (undef, $path, $base) = @_;
		1201
		1202	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1203
		1204	$path = normalise $path, $base;
		1205
		1206	for my $pkg (keys %EXT_MAP) {
		1207	if ($path =~ $EXT_MAP{$pkg}) {
		1208	my $self = bless cf::map::new, $pkg;
		1209	$self->{path} = $path; $self->path ($path);
		1210	$self->init; # pass $1 etc.
		1211	return $self;
		1212	}
		1213	}
		1214
		1215	Carp::carp "unable to resolve path '$path'.";
		1216	()
		1217	}
		1218
		1219	sub init {
		1220	my ($self) = @_;
		1221
		1222	$self
		1223	}
		1224
		1225	sub as_string {
		1226	my ($self) = @_;
		1227
		1228	"$self->{path}"
		1229	}
		1230
		1231	# the displayed name, this is a one way mapping
		1232	sub visible_name {
		1233	&as_string
		1234	}
		1235
		1236	# the original (read-only) location
		1237	sub load_path {
		1238	my ($self) = @_;
		1239
		1240	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1241	}
		1242
		1243	# the temporary/swap location
		1244	sub save_path {
		1245	my ($self) = @_;
		1246
		1247	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1248	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1249	}
		1250
		1251	# the unique path, undef == no special unique path
		1252	sub uniq_path {
		1253	my ($self) = @_;
		1254
		1255	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1256	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1085	}	1257	}
1086		1258
1087	# and all this just because we cannot iterate over	1259	# and all this just because we cannot iterate over
1088	# all maps in C++...	1260	# all maps in C++...
1089	sub change_all_map_light {	1261	sub change_all_map_light {
1090	my ($change) = @_;	1262	my ($change) = @_;
1091		1263
1092	$_->change_map_light ($change) for values %cf::MAP;	1264	$_->change_map_light ($change)
		1265	for grep $_->outdoor, values %cf::MAP;
1093	}	1266	}
1094		1267
		1268	sub unlink_save {
		1269	my ($self) = @_;
		1270
		1271	utf8::encode (my $save = $self->save_path);
		1272	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1273	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1274	}
		1275
1095	sub try_load_header($) {	1276	sub load_header_from($) {
1096	my ($path) = @_;	1277	my ($self, $path) = @_;
1097		1278
1098	utf8::encode $path;	1279	utf8::encode $path;
1099	aio_open $path, O_RDONLY, 0	1280	aio_open $path, O_RDONLY, 0
1100	or return;	1281	or return;
1101		1282
1102	my $map = cf::map::new	1283	$self->_load_header ($path)
1103	or return;	1284	or return;
1104		1285
1105	$map->load_header ($path)	1286	$self->{load_path} = $path;
		1287
		1288	1
		1289	}
		1290
		1291	sub load_orig {
		1292	my ($self) = @_;
		1293
		1294	$self->load_header_from ($self->load_path)
		1295	}
		1296
		1297	sub load_temp {
		1298	my ($self) = @_;
		1299
		1300	$self->load_header_from ($self->save_path)
		1301	}
		1302
		1303	sub load_header {
		1304	my ($self) = @_;
		1305
		1306	if ($self->load_temp) {
		1307	$self->last_access ((delete $self->{last_access})
		1308	|| $cf::RUNTIME); #d#
		1309	# safety
		1310	$self->{instantiate_time} = $cf::RUNTIME
		1311	if $self->{instantiate_time} > $cf::RUNTIME;
		1312	} else {
		1313	$self->load_orig
1106	or return;	1314	or return;
1107		1315
1108	$map->{load_path} = $path;	1316	$self->{load_original} = 1;
		1317	$self->{instantiate_time} = $cf::RUNTIME;
		1318	$self->last_access ($cf::RUNTIME);
		1319	$self->instantiate;
		1320	}
1109		1321
1110	$map	1322	1
1111	}	1323	}
1112		1324
		1325	sub find;
1113	sub find_map {	1326	sub find {
1114	my ($path, $origin) = @_;	1327	my ($path, $origin) = @_;
1115		1328
1116	#warn "find_map<$path,$origin>\n";#d#
1117
1118	$path = new cf::path $path, $origin && $origin->path;	1329	$path = normalise $path, $origin && $origin->path;
1119	my $key = $path->as_string;
1120		1330
		1331	cf::lock_wait "map_find:$path";
		1332
1121	$cf::MAP{$key} || do {	1333	$cf::MAP{$path} || do {
1122	# do it the slow way	1334	my $guard = cf::lock_acquire "map_find:$path";
1123	my $map = try_load_header $path->save_path;	1335	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;	1336	or return;
1137		1337
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;	1338	$map->{last_save} = $cf::RUNTIME;
1149	$map->last_access ($cf::RUNTIME);	1339
		1340	$map->load_header
		1341	or return;
1150		1342
1151	if ($map->should_reset) {	1343	if ($map->should_reset) {
		1344	$cf::WAIT_FOR_TICK->wait;
1152	$map->reset;	1345	$map->reset;
		1346	undef $guard;
1153	$map = find_map $path;	1347	$map = find $path
		1348	or return;
1154	}	1349	}
1155		1350
1156	$cf::MAP{$key} = $map	1351	$cf::MAP{$path} = $map
1157	}	1352	}
1158	}	1353	}
1159		1354
1160	sub load {	1355	sub load {
1161	my ($self) = @_;	1356	my ($self) = @_;
1162		1357
		1358	my $path = $self->{path};
		1359	my $guard = cf::lock_acquire "map_load:$path";
		1360
1163	return if $self->in_memory != cf::MAP_SWAPPED;	1361	return if $self->in_memory != cf::MAP_SWAPPED;
1164		1362
1165	$self->in_memory (cf::MAP_LOADING);	1363	$self->in_memory (cf::MAP_LOADING);
1166		1364
1167	my $path = $self->{path};
1168
1169	$self->alloc;	1365	$self->alloc;
1170	$self->load_objects ($self->{load_path}, 1)	1366	$self->_load_objects ($self->{load_path}, 1)
1171	or return;	1367	or return;
1172		1368
1173	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1369	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1174	if delete $self->{load_original};	1370	if delete $self->{load_original};
1175		1371
1176	if (my $uniq = $path->uniq_path) {	1372	if (my $uniq = $self->uniq_path) {
1177	utf8::encode $uniq;	1373	utf8::encode $uniq;
1178	if (aio_open $uniq, O_RDONLY, 0) {	1374	if (aio_open $uniq, O_RDONLY, 0) {
1179	$self->clear_unique_items;	1375	$self->clear_unique_items;
1180	$self->load_objects ($uniq, 0);	1376	$self->_load_objects ($uniq, 0);
1181	}	1377	}
1182	}	1378	}
		1379
		1380	Coro::cede;
1183		1381
1184	# now do the right thing for maps	1382	# now do the right thing for maps
1185	$self->link_multipart_objects;	1383	$self->link_multipart_objects;
1186		1384
1187	if ($self->{path}->is_style_map) {	1385	unless ($self->{deny_activate}) {
1188	$self->{deny_save} = 1;	1386	$self->decay_objects;
1189	$self->{deny_reset} = 1;
1190	} else {
1191	$self->fix_auto_apply;	1387	$self->fix_auto_apply;
1192	$self->decay_objects;
1193	$self->update_buttons;	1388	$self->update_buttons;
		1389	Coro::cede;
1194	$self->set_darkness_map;	1390	$self->set_darkness_map;
1195	$self->difficulty ($self->estimate_difficulty)	1391	$self->difficulty ($self->estimate_difficulty)
1196	unless $self->difficulty;	1392	unless $self->difficulty;
		1393	Coro::cede;
1197	$self->activate;	1394	$self->activate;
1198	}	1395	}
1199		1396
1200	$self->in_memory (cf::MAP_IN_MEMORY);	1397	$self->in_memory (cf::MAP_IN_MEMORY);
1201	}	1398	}
1202		1399
1203	sub load_map_sync {	1400	sub customise_for {
		1401	my ($self, $ob) = @_;
		1402
		1403	return find "~" . $ob->name . "/" . $self->{path}
		1404	if $self->per_player;
		1405
		1406	$self
		1407	}
		1408
		1409	# find and load all maps in the 3x3 area around a map
		1410	sub load_diag {
		1411	my ($map) = @_;
		1412
		1413	my @diag; # diagonal neighbours
		1414
		1415	for (0 .. 3) {
		1416	my $neigh = $map->tile_path ($_)
		1417	or next;
		1418	$neigh = find $neigh, $map
		1419	or next;
		1420	$neigh->load;
		1421
		1422	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1423	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1424	}
		1425
		1426	for (@diag) {
		1427	my $neigh = find @$_
		1428	or next;
		1429	$neigh->load;
		1430	}
		1431	}
		1432
		1433	sub find_sync {
1204	my ($path, $origin) = @_;	1434	my ($path, $origin) = @_;
1205		1435
1206	#warn "load_map_sync<$path, $origin>\n";#d#	1436	cf::sync_job { find $path, $origin }
		1437	}
1207		1438
1208	cf::sync_job {	1439	sub do_load_sync {
1209	my $map = cf::map::find_map $path, $origin	1440	my ($map) = @_;
1210	or return;	1441
		1442	cf::sync_job { $map->load };
		1443	}
		1444
		1445	our %MAP_PREFETCH;
		1446	our $MAP_PREFETCHER = undef;
		1447
		1448	sub find_async {
		1449	my ($path, $origin) = @_;
		1450
		1451	$path = normalise $path, $origin && $origin->{path};
		1452
		1453	if (my $map = $cf::MAP{$path}) {
		1454	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1455	}
		1456
		1457	undef $MAP_PREFETCH{$path};
		1458	$MAP_PREFETCHER ||= cf::async {
		1459	while (%MAP_PREFETCH) {
		1460	for my $path (keys %MAP_PREFETCH) {
		1461	warn "prefetching $path...\n";#d#
		1462	my $map = find $path
		1463	or next;
1211	$map->load;	1464	$map->load;
1212	$map	1465
		1466	delete $MAP_PREFETCH{$path};
		1467	}
		1468	}
		1469	undef $MAP_PREFETCHER;
1213	}	1470	};
		1471
		1472	()
1214	}	1473	}
1215		1474
1216	sub save {	1475	sub save {
1217	my ($self) = @_;	1476	my ($self) = @_;
1218		1477
		1478	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1479
1219	$self->{last_save} = $cf::RUNTIME;	1480	$self->{last_save} = $cf::RUNTIME;
1220		1481
1221	return unless $self->dirty;	1482	return unless $self->dirty;
1222		1483
1223	my $save = $self->{path}->save_path; utf8::encode $save;	1484	my $save = $self->save_path; utf8::encode $save;
1224	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1485	my $uniq = $self->uniq_path; utf8::encode $uniq;
1225		1486
1226	$self->{load_path} = $save;	1487	$self->{load_path} = $save;
1227		1488
1228	return if $self->{deny_save};	1489	return if $self->{deny_save};
1229		1490
		1491	local $self->{last_access} = $self->last_access;#d#
		1492
		1493	cf::async {
		1494	$_->contr->save for $self->players;
		1495	};
		1496
1230	if ($uniq) {	1497	if ($uniq) {
1231	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1498	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1232	$self->save_objects ($uniq, cf::IO_UNIQUES);	1499	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1233	} else {	1500	} else {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1501	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1235	}	1502	}
1236	}	1503	}
1237		1504
1238	sub swap_out {	1505	sub swap_out {
1239	my ($self) = @_;	1506	my ($self) = @_;
		1507
		1508	# save first because save cedes
		1509	$self->save;
		1510
		1511	my $lock = cf::lock_acquire "map_data:" . $self->path;
1240		1512
1241	return if $self->players;	1513	return if $self->players;
1242	return if $self->in_memory != cf::MAP_IN_MEMORY;	1514	return if $self->in_memory != cf::MAP_IN_MEMORY;
1243	return if $self->{deny_save};	1515	return if $self->{deny_save};
1244		1516
1245	$self->save;
1246	$self->clear;	1517	$self->clear;
1247	$self->in_memory (cf::MAP_SWAPPED);	1518	$self->in_memory (cf::MAP_SWAPPED);
1248	}	1519	}
1249		1520
1250	sub reset_at {	1521	sub reset_at {
1251	my ($self) = @_;	1522	my ($self) = @_;
1252		1523
1253	# TODO: safety, remove and allow resettable per-player maps	1524	# TODO: safety, remove and allow resettable per-player maps
1254	return 1e99 if $self->{path}{user_rel};	1525	return 1e99 if $self->isa ("ext::map_per_player");#d#
1255	return 1e99 if $self->{deny_reset};	1526	return 1e99 if $self->{deny_reset};
1256		1527
1257	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1528	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1258	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1529	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1259		1530
…		…
1264	my ($self) = @_;	1535	my ($self) = @_;
1265		1536
1266	$self->reset_at <= $cf::RUNTIME	1537	$self->reset_at <= $cf::RUNTIME
1267	}	1538	}
1268		1539
1269	sub unlink_save {
1270	my ($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	$self->save;
1288	}
1289
1290	sub reset {	1540	sub reset {
1291	my ($self) = @_;	1541	my ($self) = @_;
1292		1542
		1543	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1544
1293	return if $self->players;	1545	return if $self->players;
1294	return if $self->{path}{user_rel};#d#	1546	return if $self->isa ("ext::map_per_player");#d#
1295		1547
1296	warn "resetting map ", $self->path;#d#	1548	warn "resetting map ", $self->path;#d#
1297		1549
1298	delete $cf::MAP{$self->path};	1550	delete $cf::MAP{$self->path};
		1551
		1552	$self->in_memory (cf::MAP_SWAPPED);
		1553	$self->clear;
1299		1554
1300	$_->clear_links_to ($self) for values %cf::MAP;	1555	$_->clear_links_to ($self) for values %cf::MAP;
1301		1556
1302	$self->unlink_save;	1557	$self->unlink_save;
1303	$self->destroy;	1558	$self->destroy;
…		…
1306	my $nuke_counter = "aaaa";	1561	my $nuke_counter = "aaaa";
1307		1562
1308	sub nuke {	1563	sub nuke {
1309	my ($self) = @_;	1564	my ($self) = @_;
1310		1565
		1566	delete $cf::MAP{$self->path};
		1567
		1568	$self->unlink_save;
		1569
		1570	bless $self, "cf::map";
		1571	delete $self->{deny_reset};
1311	$self->{deny_save} = 1;	1572	$self->{deny_save} = 1;
1312	$self->reset_timeout (1);	1573	$self->reset_timeout (1);
1313	$self->rename ("{nuke}/" . ($nuke_counter++));	1574	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1575
		1576	$cf::MAP{$self->path} = $self;
		1577
1314	$self->reset; # polite request, might not happen	1578	$self->reset; # polite request, might not happen
1315	}	1579	}
1316		1580
1317	sub customise_for {	1581	=item cf::map::unique_maps
1318	my ($map, $ob) = @_;
1319		1582
1320	if ($map->per_player) {	1583	Returns an arrayref of paths of all shared maps that have
1321	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1584	instantiated unique items. May block.
1322	}
1323		1585
1324	$map	1586	=cut
1325	}
1326		1587
1327	sub emergency_save {	1588	sub unique_maps() {
1328	local $cf::FREEZE = 1;	1589	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1590	or return;
1329		1591
1330	warn "enter emergency map save\n";	1592	my @paths;
1331		1593
1332	cf::sync_job {	1594	for (@$files) {
1333	warn "begin emergency map save\n";	1595	utf8::decode $_;
1334	$_->save for values %cf::MAP;	1596	next if /\.pst$/;
		1597	next unless /^$PATH_SEP/o;
		1598
		1599	s/\.map$//;
		1600	push @paths, $_;
1335	};	1601	}
1336		1602
1337	warn "end emergency map save\n";	1603	\@paths
1338	}	1604	}
1339		1605
1340	package cf;	1606	package cf;
1341		1607
1342	=back	1608	=back
1343		1609
		1610	=head3 cf::object
		1611
		1612	=cut
		1613
		1614	package cf::object;
		1615
		1616	=over 4
		1617
		1618	=item $ob->inv_recursive
		1619
		1620	Returns the inventory of the object _and_ their inventories, recursively.
		1621
		1622	=cut
		1623
		1624	sub inv_recursive_;
		1625	sub inv_recursive_ {
		1626	map { $_, inv_recursive_ $_->inv } @_
		1627	}
		1628
		1629	sub inv_recursive {
		1630	inv_recursive_ inv $_[0]
		1631	}
		1632
		1633	package cf;
		1634
		1635	=back
1344		1636
1345	=head3 cf::object::player	1637	=head3 cf::object::player
1346		1638
1347	=over 4	1639	=over 4
1348		1640
…		…
1388		1680
1389	=item $player_object->enter_link	1681	=item $player_object->enter_link
1390		1682
1391	Freezes the player and moves him/her to a special map (C<{link}>).	1683	Freezes the player and moves him/her to a special map (C<{link}>).
1392		1684
1393	The player should be reaosnably safe there for short amounts of time. You	1685	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.	1686	I<MUST> call C<leave_link> as soon as possible, though.
1395		1687
		1688	Will never block.
		1689
1396	=item $player_object->leave_link ($map, $x, $y)	1690	=item $player_object->leave_link ($map, $x, $y)
1397		1691
1398	Moves the player out of the specila link map onto the given map. If the	1692	Moves the player out of the special C<{link}> map onto the specified
1399	map is not valid (or omitted), the player will be moved back to the	1693	map. If the map is not valid (or omitted), the player will be moved back
1400	location he/she was before the call to C<enter_link>, or, if that fails,	1694	to the location he/she was before the call to C<enter_link>, or, if that
1401	to the emergency map position.	1695	fails, to the emergency map position.
1402		1696
1403	Might block.	1697	Might block.
1404		1698
1405	=cut	1699	=cut
		1700
		1701	sub link_map {
		1702	unless ($LINK_MAP) {
		1703	$LINK_MAP = cf::map::find "{link}"
		1704	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1705	$LINK_MAP->load;
		1706	}
		1707
		1708	$LINK_MAP
		1709	}
1406		1710
1407	sub cf::object::player::enter_link {	1711	sub cf::object::player::enter_link {
1408	my ($self) = @_;	1712	my ($self) = @_;
1409		1713
1410	return if $self->map == $LINK_MAP;	1714	$self->deactivate_recursive;
1411		1715
		1716	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1717
1412	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1718	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1413	if $self->map;	1719	if $self->map;
1414		1720
1415	$self->enter_map ($LINK_MAP, 20, 20);	1721	$self->enter_map ($LINK_MAP || link_map, 20, 20);
1416	$self->deactivate_recursive;
1417	}	1722	}
1418		1723
1419	sub cf::object::player::leave_link {	1724	sub cf::object::player::leave_link {
1420	my ($self, $map, $x, $y) = @_;	1725	my ($self, $map, $x, $y) = @_;
1421		1726
1422	my $link_pos = delete $self->{_link_pos};	1727	my $link_pos = delete $self->{_link_pos};
1423		1728
1424	unless ($map) {	1729	unless ($map) {
1425	# restore original map position	1730	# restore original map position
1426	($map, $x, $y) = @{ $link_pos || [] };	1731	($map, $x, $y) = @{ $link_pos || [] };
1427	$map = cf::map::find_map $map;	1732	$map = cf::map::find $map;
1428		1733
1429	unless ($map) {	1734	unless ($map) {
1430	($map, $x, $y) = @$EMERGENCY_POSITION;	1735	($map, $x, $y) = @$EMERGENCY_POSITION;
1431	$map = cf::map::find_map $map	1736	$map = cf::map::find $map
1432	or die "FATAL: cannot load emergency map\n";	1737	or die "FATAL: cannot load emergency map\n";
1433	}	1738	}
1434	}	1739	}
1435		1740
1436	($x, $y) = (-1, -1)	1741	($x, $y) = (-1, -1)
…		…
1439	# use -1 or undef as default coordinates, not 0, 0	1744	# use -1 or undef as default coordinates, not 0, 0
1440	($x, $y) = ($map->enter_x, $map->enter_y)	1745	($x, $y) = ($map->enter_x, $map->enter_y)
1441	if $x <=0 && $y <= 0;	1746	if $x <=0 && $y <= 0;
1442		1747
1443	$map->load;	1748	$map->load;
		1749	$map->load_diag;
1444		1750
		1751	return unless $self->contr->active;
1445	$self->activate_recursive;	1752	$self->activate_recursive;
1446	$self->enter_map ($map, $x, $y);	1753	$self->enter_map ($map, $x, $y);
1447	}	1754	}
1448		1755
		1756	cf::player->attach (
		1757	on_logout => sub {
		1758	my ($pl) = @_;
		1759
		1760	# abort map switching before logout
		1761	if ($pl->ob->{_link_pos}) {
		1762	cf::sync_job {
		1763	$pl->ob->leave_link
		1764	};
		1765	}
		1766	},
		1767	on_login => sub {
		1768	my ($pl) = @_;
		1769
		1770	# try to abort aborted map switching on player login :)
		1771	# should happen only on crashes
		1772	if ($pl->ob->{_link_pos}) {
		1773	$pl->ob->enter_link;
		1774	(async {
		1775	# we need this sleep as the login has a concurrent enter_exit running
		1776	# and this sleep increases chances of the player not ending up in scorn
		1777	$pl->ob->reply (undef,
		1778	"There was an internal problem at your last logout, "
		1779	. "the server will try to bring you to your intended destination in a second.",
		1780	cf::NDI_RED);
		1781	Coro::Timer::sleep 1;
		1782	$pl->ob->leave_link;
		1783	})->prio (2);
		1784	}
		1785	},
		1786	);
		1787
1449	=item $player_object->goto_map ($map, $x, $y)	1788	=item $player_object->goto ($path, $x, $y)
1450		1789
1451	=cut	1790	=cut
1452		1791
1453	sub cf::object::player::goto_map {	1792	sub cf::object::player::goto {
1454	my ($self, $path, $x, $y) = @_;	1793	my ($self, $path, $x, $y) = @_;
1455		1794
1456	$self->enter_link;	1795	$self->enter_link;
1457		1796
1458	(Coro::async {	1797	(async {
1459	$path = new cf::path $path;
1460
1461	my $map = cf::map::find_map $path->as_string;	1798	my $map = cf::map::find $path;
1462	$map = $map->customise_for ($self) if $map;	1799	$map = $map->customise_for ($self) if $map;
1463		1800
1464	warn "entering ", $map->path, " at ($x, $y)\n"	1801	# warn "entering ", $map->path, " at ($x, $y)\n"
1465	if $map;	1802	# if $map;
1466		1803
1467	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1804	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1468		1805
1469	$self->leave_link ($map, $x, $y);	1806	$self->leave_link ($map, $x, $y);
1470	})->prio (1);	1807	})->prio (1);
1471	}	1808	}
1472		1809
…		…
1476		1813
1477	sub parse_random_map_params {	1814	sub parse_random_map_params {
1478	my ($spec) = @_;	1815	my ($spec) = @_;
1479		1816
1480	my $rmp = { # defaults	1817	my $rmp = { # defaults
1481	xsize => 10,	1818	xsize => (cf::rndm 15, 40),
1482	ysize => 10,	1819	ysize => (cf::rndm 15, 40),
		1820	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1821	#layout => string,
1483	};	1822	};
1484		1823
1485	for (split /\n/, $spec) {	1824	for (split /\n/, $spec) {
1486	my ($k, $v) = split /\s+/, $_, 2;	1825	my ($k, $v) = split /\s+/, $_, 2;
1487		1826
…		…
1491	$rmp	1830	$rmp
1492	}	1831	}
1493		1832
1494	sub prepare_random_map {	1833	sub prepare_random_map {
1495	my ($exit) = @_;	1834	my ($exit) = @_;
		1835
		1836	my $guard = cf::lock_acquire "exit_prepare:$exit";
1496		1837
1497	# all this does is basically replace the /! path by	1838	# all this does is basically replace the /! path by
1498	# a new random map path (?random/...) with a seed	1839	# a new random map path (?random/...) with a seed
1499	# that depends on the exit object	1840	# that depends on the exit object
1500		1841
…		…
1509		1850
1510	$rmp->{random_seed} ||= $exit->random_seed;	1851	$rmp->{random_seed} ||= $exit->random_seed;
1511		1852
1512	my $data = cf::to_json $rmp;	1853	my $data = cf::to_json $rmp;
1513	my $md5 = Digest::MD5::md5_hex $data;	1854	my $md5 = Digest::MD5::md5_hex $data;
		1855	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1514		1856
1515	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1857	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1516	aio_write $fh, 0, (length $data), $data, 0;	1858	aio_write $fh, 0, (length $data), $data, 0;
		1859	undef $fh;
		1860	aio_rename "$meta~", $meta;
1517		1861
1518	$exit->slaying ("?random/$md5");	1862	$exit->slaying ("?random/$md5");
1519	$exit->msg (undef);	1863	$exit->msg (undef);
1520	}	1864	}
1521	}	1865	}
…		…
1525		1869
1526	return unless $self->type == cf::PLAYER;	1870	return unless $self->type == cf::PLAYER;
1527		1871
1528	$self->enter_link;	1872	$self->enter_link;
1529		1873
1530	(Coro::async {	1874	(async {
		1875	$self->deactivate_recursive; # just to be sure
1531	unless (eval {	1876	unless (eval {
1532
1533	prepare_random_map $exit	1877	prepare_random_map $exit
1534	if $exit->slaying eq "/!";	1878	if $exit->slaying eq "/!";
1535		1879
1536	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	1880	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1537	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	1881	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1538		1882
1539	1;	1883	1;
1540	}) {	1884	}) {
1541	$self->message ("Something went wrong deep within the crossfire server. "	1885	$self->message ("Something went wrong deep within the crossfire server. "
1542	. "I'll try to bring you back to the map you were before. "	1886	. "I'll try to bring you back to the map you were before. "
1543	. "Please report this to the dungeon master",	1887	. "Please report this to the dungeon master!",
1544	cf::NDI_UNIQUE | cf::NDI_RED);	1888	cf::NDI_UNIQUE | cf::NDI_RED);
1545		1889
1546	warn "ERROR in enter_exit: $@";	1890	warn "ERROR in enter_exit: $@";
1547	$self->leave_link;	1891	$self->leave_link;
1548	}	1892	}
…		…
1599	on_reply => sub {	1943	on_reply => sub {
1600	my ($ns, $msg) = @_;	1944	my ($ns, $msg) = @_;
1601		1945
1602	# this weird shuffling is so that direct followup queries	1946	# this weird shuffling is so that direct followup queries
1603	# get handled first	1947	# get handled first
1604	my $queue = delete $ns->{query_queue};	1948	my $queue = delete $ns->{query_queue}
		1949	or return; # be conservative, not sure how that can happen, but we saw a crash here
1605		1950
1606	(shift @$queue)->[1]->($msg);	1951	(shift @$queue)->[1]->($msg);
1607		1952
1608	push @{ $ns->{query_queue} }, @$queue;	1953	push @{ $ns->{query_queue} }, @$queue;
1609		1954
…		…
1615	}	1960	}
1616	}	1961	}
1617	},	1962	},
1618	);	1963	);
1619		1964
1620	=item $client->coro (\&cb)	1965	=item $client->async (\&cb)
1621		1966
1622	Create a new coroutine, running the specified callback. The coroutine will	1967	Create a new coroutine, running the specified callback. The coroutine will
1623	be automatically cancelled when the client gets destroyed (e.g. on logout,	1968	be automatically cancelled when the client gets destroyed (e.g. on logout,
1624	or loss of connection).	1969	or loss of connection).
1625		1970
1626	=cut	1971	=cut
1627		1972
1628	sub cf::client::coro {	1973	sub cf::client::async {
1629	my ($self, $cb) = @_;	1974	my ($self, $cb) = @_;
1630		1975
1631	my $coro; $coro = async {	1976	my $coro = &Coro::async ($cb);
1632	eval {
1633	$cb->();
1634	};
1635	warn $@ if $@;
1636	};
1637		1977
1638	$coro->on_destroy (sub {	1978	$coro->on_destroy (sub {
1639	delete $self->{_coro}{$coro+0};	1979	delete $self->{_coro}{$coro+0};
1640	});	1980	});
1641		1981
…		…
1813		2153
1814	{	2154	{
1815	my $path = cf::localdir . "/database.pst";	2155	my $path = cf::localdir . "/database.pst";
1816		2156
1817	sub db_load() {	2157	sub db_load() {
1818	warn "loading database $path\n";#d# remove later
1819	$DB = stat $path ? Storable::retrieve $path : { };	2158	$DB = stat $path ? Storable::retrieve $path : { };
1820	}	2159	}
1821		2160
1822	my $pid;	2161	my $pid;
1823		2162
1824	sub db_save() {	2163	sub db_save() {
1825	warn "saving database $path\n";#d# remove later
1826	waitpid $pid, 0 if $pid;	2164	waitpid $pid, 0 if $pid;
1827	if (0 == ($pid = fork)) {	2165	if (0 == ($pid = fork)) {
1828	$DB->{_meta}{version} = 1;	2166	$DB->{_meta}{version} = 1;
1829	Storable::nstore $DB, "$path~";	2167	Storable::nstore $DB, "$path~";
1830	rename "$path~", $path;	2168	rename "$path~", $path;
…		…
1837	sub db_sync() {	2175	sub db_sync() {
1838	db_save if $dirty;	2176	db_save if $dirty;
1839	undef $dirty;	2177	undef $dirty;
1840	}	2178	}
1841		2179
1842	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2180	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1843	db_sync;	2181	db_sync;
1844	});	2182	});
1845		2183
1846	sub db_dirty() {	2184	sub db_dirty() {
1847	$dirty = 1;	2185	$dirty = 1;
…		…
1878	open my $fh, "<:utf8", cf::confdir . "/config"	2216	open my $fh, "<:utf8", cf::confdir . "/config"
1879	or return;	2217	or return;
1880		2218
1881	local $/;	2219	local $/;
1882	*CFG = YAML::Syck::Load <$fh>;	2220	*CFG = YAML::Syck::Load <$fh>;
		2221
		2222	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2223
		2224	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2225	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2226
		2227	if (exists $CFG{mlockall}) {
		2228	eval {
		2229	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2230	and die "WARNING: m(un)lockall failed: $!\n";
		2231	};
		2232	warn $@ if $@;
		2233	}
1883	}	2234	}
1884		2235
1885	sub main {	2236	sub main {
1886	# we must not ever block the main coroutine	2237	# we must not ever block the main coroutine
1887	local $Coro::idle = sub {	2238	local $Coro::idle = sub {
1888	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2239	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1889	(Coro::unblock_sub {	2240	(async {
1890	Event::one_event;	2241	Event::one_event;
1891	})->();	2242	})->prio (Coro::PRIO_MAX);
1892	};	2243	};
1893		2244
1894	cfg_load;	2245	cfg_load;
1895	db_load;	2246	db_load;
1896	load_extensions;	2247	load_extensions;
		2248
		2249	$TICK_WATCHER->start;
1897	Event::loop;	2250	Event::loop;
1898	}	2251	}
1899		2252
1900	#############################################################################	2253	#############################################################################
1901	# initialisation	2254	# initialisation and cleanup
		2255
		2256	# install some emergency cleanup handlers
		2257	BEGIN {
		2258	for my $signal (qw(INT HUP TERM)) {
		2259	Event->signal (
		2260	data => WF_AUTOCANCEL,
		2261	signal => $signal,
		2262	cb => sub {
		2263	cf::cleanup "SIG$signal";
		2264	},
		2265	);
		2266	}
		2267	}
		2268
		2269	sub emergency_save() {
		2270	my $freeze_guard = cf::freeze_mainloop;
		2271
		2272	warn "enter emergency perl save\n";
		2273
		2274	cf::sync_job {
		2275	# use a peculiar iteration method to avoid tripping on perl
		2276	# refcount bugs in for. also avoids problems with players
		2277	# and maps saved/destroyed asynchronously.
		2278	warn "begin emergency player save\n";
		2279	for my $login (keys %cf::PLAYER) {
		2280	my $pl = $cf::PLAYER{$login} or next;
		2281	$pl->valid or next;
		2282	$pl->save;
		2283	}
		2284	warn "end emergency player save\n";
		2285
		2286	warn "begin emergency map save\n";
		2287	for my $path (keys %cf::MAP) {
		2288	my $map = $cf::MAP{$path} or next;
		2289	$map->valid or next;
		2290	$map->save;
		2291	}
		2292	warn "end emergency map save\n";
		2293	};
		2294
		2295	warn "leave emergency perl save\n";
		2296	}
1902		2297
1903	sub reload() {	2298	sub reload() {
1904	# can/must only be called in main	2299	# can/must only be called in main
1905	if ($Coro::current != $Coro::main) {	2300	if ($Coro::current != $Coro::main) {
1906	warn "can only reload from main coroutine\n";	2301	warn "can only reload from main coroutine";
1907	return;	2302	return;
1908	}	2303	}
1909		2304
1910	warn "reloading...";	2305	warn "reloading...";
1911		2306
1912	local $FREEZE = 1;	2307	warn "cancelling server ticker";
		2308	$TICK_WATCHER->cancel;
		2309
1913	cf::emergency_save;	2310	cf::emergency_save;
1914		2311
1915	eval {	2312	eval {
1916	# if anything goes wrong in here, we should simply crash as we already saved	2313	# if anything goes wrong in here, we should simply crash as we already saved
1917		2314
1918	# cancel all watchers	2315	warn "syncing database to disk";
		2316	cf::db_sync;
		2317
		2318	warn "cancelling all WF_AUTOCANCEL watchers";
1919	for (Event::all_watchers) {	2319	for (Event::all_watchers) {
1920	$_->cancel if $_->data & WF_AUTOCANCEL;	2320	$_->cancel if $_->data & WF_AUTOCANCEL;
1921	}	2321	}
1922		2322
		2323	warn "flushing outstanding aio requests";
		2324	for (;;) {
		2325	IO::AIO::flush;
		2326	Coro::cede;
		2327	last unless IO::AIO::nreqs;
		2328	warn "iterate...";
		2329	}
		2330
1923	# cancel all extension coros	2331	warn "cancelling all extension coros";
1924	$_->cancel for values %EXT_CORO;	2332	$_->cancel for values %EXT_CORO;
1925	%EXT_CORO = ();	2333	%EXT_CORO = ();
1926		2334
1927	# unload all extensions	2335	warn "removing commands";
1928	for (@exts) {	2336	%COMMAND = ();
		2337
		2338	warn "removing ext commands";
		2339	%EXTCMD = ();
		2340
		2341	warn "unloading/nuking all extensions";
		2342	for my $pkg (@EXTS) {
1929	warn "unloading <$_>";	2343	warn "... unloading $pkg";
1930	unload_extension $_;	2344
		2345	if (my $cb = $pkg->can ("unload")) {
		2346	eval {
		2347	$cb->($pkg);
		2348	1
		2349	} or warn "$pkg unloaded, but with errors: $@";
1931	}	2350	}
1932		2351
		2352	warn "... nuking $pkg";
		2353	Symbol::delete_package $pkg;
		2354	}
		2355
1933	# unload all modules loaded from $LIBDIR	2356	warn "unloading all perl modules loaded from $LIBDIR";
1934	while (my ($k, $v) = each %INC) {	2357	while (my ($k, $v) = each %INC) {
1935	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2358	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1936		2359
1937	warn "removing <$k>";	2360	warn "... unloading $k";
1938	delete $INC{$k};	2361	delete $INC{$k};
1939		2362
1940	$k =~ s/\.pm$//;	2363	$k =~ s/\.pm$//;
1941	$k =~ s/\//::/g;	2364	$k =~ s/\//::/g;
1942		2365
…		…
1945	}	2368	}
1946		2369
1947	Symbol::delete_package $k;	2370	Symbol::delete_package $k;
1948	}	2371	}
1949		2372
1950	# sync database to disk
1951	cf::db_sync;
1952	IO::AIO::flush;
1953
1954	# get rid of safe::, as good as possible	2373	warn "getting rid of safe::, as good as possible";
1955	Symbol::delete_package "safe::$_"	2374	Symbol::delete_package "safe::$_"
1956	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2375	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1957		2376
1958	# remove register_script_function callbacks
1959	# TODO
1960
1961	# unload cf.pm "a bit"	2377	warn "unloading cf.pm \"a bit\"";
1962	delete $INC{"cf.pm"};	2378	delete $INC{"cf.pm"};
1963		2379
1964	# don't, removes xs symbols, too,	2380	# don't, removes xs symbols, too,
1965	# and global variables created in xs	2381	# and global variables created in xs
1966	#Symbol::delete_package __PACKAGE__;	2382	#Symbol::delete_package __PACKAGE__;
1967		2383
1968	# reload cf.pm	2384	warn "unload completed, starting to reload now";
		2385
1969	warn "reloading cf.pm";	2386	warn "reloading cf.pm";
1970	require cf;	2387	require cf;
1971	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1972		2389
1973	# load config and database again	2390	warn "loading config and database again";
1974	cf::cfg_load;	2391	cf::cfg_load;
1975	cf::db_load;	2392	cf::db_load;
1976		2393
1977	# load extensions
1978	warn "load extensions";	2394	warn "loading extensions";
1979	cf::load_extensions;	2395	cf::load_extensions;
1980		2396
1981	# reattach attachments to objects	2397	warn "reattaching attachments to objects/players";
1982	warn "reattach";
1983	_global_reattach;	2398	_global_reattach;
		2399	warn "reattaching attachments to maps";
		2400	reattach $_ for values %MAP;
		2401
		2402	warn "restarting server ticker";
		2403
		2404	$TICK_WATCHER->start;
1984	};	2405	};
1985		2406
1986	if ($@) {	2407	if ($@) {
1987	warn $@;	2408	warn $@;
1988	warn "error while reloading, exiting.";	2409	warn "error while reloading, exiting.";
1989	exit 1;	2410	exit 1;
1990	}	2411	}
1991		2412
1992	warn "reloaded successfully";	2413	warn "reloaded";
1993	};	2414	};
1994		2415
1995	#############################################################################	2416	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} = $LINK_MAP;
2036	}
2037
2038	register "<global>", __PACKAGE__;
2039		2417
2040	register_command "reload" => sub {	2418	register_command "reload" => sub {
2041	my ($who, $arg) = @_;	2419	my ($who, $arg) = @_;
2042		2420
2043	if ($who->flag (FLAG_WIZ)) {	2421	if ($who->flag (FLAG_WIZ)) {
2044	$who->message ("start of reload.");	2422	$who->message ("reloading server.");
		2423
		2424	# doing reload synchronously and two reloads happen back-to-back,
		2425	# coro crashes during coro_state_free->destroy here.
		2426
		2427	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2045	reload;	2428	reload;
2046	$who->message ("end of reload.");	2429	undef $RELOAD_WATCHER;
		2430	});
2047	}	2431	}
2048	};	2432	};
2049		2433
2050	unshift @INC, $LIBDIR;	2434	unshift @INC, $LIBDIR;
		2435
		2436	my $bug_warning = 0;
2051		2437
2052	$TICK_WATCHER = Event->timer (	2438	$TICK_WATCHER = Event->timer (
2053	reentrant => 0,	2439	reentrant => 0,
		2440	parked => 1,
2054	prio => 0,	2441	prio => 0,
2055	at => $NEXT_TICK || $TICK,	2442	at => $NEXT_TICK || $TICK,
2056	data => WF_AUTOCANCEL,	2443	data => WF_AUTOCANCEL,
2057	cb => sub {	2444	cb => sub {
2058	unless ($FREEZE) {	2445	if ($Coro::current != $Coro::main) {
		2446	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2447	unless ++$bug_warning > 10;
		2448	return;
		2449	}
		2450
		2451	$NOW = Event::time;
		2452
2059	cf::server_tick; # one server iteration	2453	cf::server_tick; # one server iteration
2060	$RUNTIME += $TICK;	2454	$RUNTIME += $TICK;
2061	}
2062
2063	$NEXT_TICK += $TICK;	2455	$NEXT_TICK += $TICK;
		2456
		2457	$WAIT_FOR_TICK->broadcast;
		2458	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2064		2459
2065	# if we are delayed by four ticks or more, skip them all	2460	# if we are delayed by four ticks or more, skip them all
2066	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2461	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2067		2462
2068	$TICK_WATCHER->at ($NEXT_TICK);	2463	$TICK_WATCHER->at ($NEXT_TICK);
…		…
2070	},	2465	},
2071	);	2466	);
2072		2467
2073	IO::AIO::max_poll_time $TICK * 0.2;	2468	IO::AIO::max_poll_time $TICK * 0.2;
2074		2469
2075	Event->io (	2470	$AIO_POLL_WATCHER = Event->io (
2076	fd => IO::AIO::poll_fileno,	2471	fd => IO::AIO::poll_fileno,
2077	poll => 'r',	2472	poll => 'r',
2078	prio => 5,	2473	prio => 5,
2079	data => WF_AUTOCANCEL,	2474	data => WF_AUTOCANCEL,
2080	cb => \&IO::AIO::poll_cb,	2475	cb => \&IO::AIO::poll_cb,
2081	);	2476	);
2082		2477
2083	Event->timer (	2478	$WRITE_RUNTIME_WATCHER = Event->timer (
2084	data => WF_AUTOCANCEL,	2479	data => WF_AUTOCANCEL,
2085	after => 0,	2480	after => 1,
2086	interval => 10,	2481	interval => 10,
2087	cb => sub {	2482	cb => Coro::unblock_sub {
2088	(Coro::unblock_sub {
2089	write_runtime	2483	write_runtime
2090	or warn "ERROR: unable to write runtime file: $!";	2484	or warn "ERROR: unable to write runtime file: $!";
2091	})->();
2092	},	2485	},
2093	);	2486	);
2094		2487
		2488	END { cf::emergency_save }
		2489
2095	1	2490	1
2096		2491

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