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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.196 by root, Sat Jan 27 23:59:29 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
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 ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	286	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	294	=cut
198		295
199	sub sync_job(&) {	296	sub sync_job(&) {
200	my ($job) = @_;	297	my ($job) = @_;
201		298
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	299	if ($Coro::current == $Coro::main) {
		300	# this is the main coro, too bad, we have to block
		301	# till the operation succeeds, freezing the server :/
		302
212	# TODO: use suspend/resume instead	303	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	304	# (but this is cancel-safe)
		305	my $freeze_guard = freeze_mainloop;
		306
		307	my $busy = 1;
		308	my @res;
		309
		310	(async {
		311	@res = eval { $job->() };
		312	warn $@ if $@;
		313	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	314	})->prio (Coro::PRIO_MAX);
		315
215	while ($busy) {	316	while ($busy) {
216	Coro::cede_notself;	317	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	318	}
		319
		320	wantarray ? @res : $res[0]
219	} else {	321	} else {
220	$coro->join;	322	# we are in another coroutine, how wonderful, everything just works
		323
		324	$job->()
221	}	325	}
222
223	wantarray ? @res : $res[0]
224	}	326	}
225		327
226	=item $coro = cf::coro { BLOCK }	328	=item $coro = cf::async_ext { BLOCK }
227		329
228	Creates and returns a new coro. This coro is automcatially being canceled	330	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	331	extension calling this is being unloaded.
230		332
231	=cut	333	=cut
232		334
233	sub coro(&) {	335	sub async_ext(&) {
234	my $cb = shift;	336	my $cb = shift;
235		337
236	my $coro; $coro = async {	338	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		339
243	$coro->on_destroy (sub {	340	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	341	delete $EXT_CORO{$coro+0};
245	});	342	});
246	$EXT_CORO{$coro+0} = $coro;	343	$EXT_CORO{$coro+0} = $coro;
…		…
252	my $runtime = cf::localdir . "/runtime";	349	my $runtime = cf::localdir . "/runtime";
253		350
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	352	or return;
256		353
257	my $value = $cf::RUNTIME;	354	my $value = $cf::RUNTIME + 90 + 10;
		355	# 10 is the runtime save interval, for a monotonic clock
		356	# 60 allows for the watchdog to kill the server.
		357
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	359	and return;
260		360
261	aio_fsync $fh	361	aio_fsync $fh
262	and return;	362	and return;
…		…
271	}	371	}
272		372
273	=back	373	=back
274		374
275	=cut	375	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		376
387	#############################################################################	377	#############################################################################
388		378
389	=head2 ATTACHABLE OBJECTS	379	=head2 ATTACHABLE OBJECTS
390		380
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	506	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	507	our @CB_MAP = ();
518		508
519	my %attachment;	509	my %attachment;
520		510
		511	sub cf::attachable::thawer_merge {
		512	# simply override everything except _meta
		513	local $_[0]{_meta};
		514	%{$_[0]} = %{$_[1]};
		515	}
		516
521	sub _attach_cb($$$$) {	517	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	518	my ($registry, $event, $prio, $cb) = @_;
523		519
524	use sort 'stable';	520	use sort 'stable';
525		521
…		…
696	# object support	692	# object support
697		693
698	sub reattach {	694	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	695	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	696	my ($obj) = @_;
		697
		698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		699
702	my $registry = $obj->registry;	700	my $registry = $obj->registry;
703		701
704	@$registry = ();	702	@$registry = ();
705		703
…		…
798	or return;	796	or return;
799		797
800	unless (aio_stat "$filename.pst") {	798	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	799	(aio_load "$filename.pst", $av) >= 0
802	or return;	800	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	801	$av = eval { (Storable::thaw $av)->{objs} };
804	}	802	}
805		803
		804	warn sprintf "loading %s (%d)\n",
		805	$filename, length $data, scalar @{$av || []};#d#
806	return ($data, $av);	806	return ($data, $av);
807	}	807	}
808		808
809	#############################################################################	809	#############################################################################
810	# command handling &c	810	# command handling &c
…		…
835	=cut	835	=cut
836		836
837	sub register_extcmd {	837	sub register_extcmd {
838	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
839		839
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	840	$EXTCMD{$name} = $cb;
844	}	841	}
845		842
846	cf::player->attach (	843	cf::player->attach (
847	on_command => sub {	844	on_command => sub {
848	my ($pl, $name, $params) = @_;	845	my ($pl, $name, $params) = @_;
…		…
861		858
862	my $msg = eval { from_json $buf };	859	my $msg = eval { from_json $buf };
863		860
864	if (ref $msg) {	861	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	863	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	864	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	865	}
869	}	866	}
870	} else {	867	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		870
874	cf::override;	871	cf::override;
875	},	872	},
876	);	873	);
877		874
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	875	sub load_extension {
885	my ($path) = @_;	876	my ($path) = @_;
886		877
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
888	my $base = $1;	879	my $base = $1;
889	my $pkg = $1;	880	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;	881	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";	882	$pkg = "ext::$pkg";
892		883
893	warn "loading '$path' into '$pkg'\n";	884	warn "... loading '$path' into '$pkg'\n";
894		885
895	open my $fh, "<:utf8", $path	886	open my $fh, "<:utf8", $path
896	or die "$path: $!";	887	or die "$path: $!";
897		888
898	my $source =	889	my $source =
899	"package $pkg; use strict; use utf8;\n"	890	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"	891	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })	892	. (do { local $/; <$fh> })
902	. "\n};\n1";	893	. "\n};\n1";
903		894
904	eval $source	895	unless (eval $source) {
905	or die $@ ? "$path: $@\n"	896	my $msg = $@ ? "$path: $@\n"
906	: "extension disabled.\n";	897	: "extension disabled.\n";
907		898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908	push @exts, $pkg;	899	warn $@;
909	$ext_pkg{$base} = $pkg;	900	warn "mandatory extension failed to load, exiting.\n";
910		901	exit 1;
911	# no strict 'refs';	902	}
912	# @{"$pkg\::ISA"} = ext::;	903	die $@;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	904	}
927		905
928	# remove commands	906	push @EXTS, $pkg;
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	907	}
953		908
954	sub load_extensions {	909	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {	910	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	911	next unless -r $ext;
…		…
960	} or warn "$ext not loaded: $@";	915	} or warn "$ext not loaded: $@";
961	}	916	}
962	}	917	}
963		918
964	#############################################################################	919	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001		920
1002	=head2 CORE EXTENSIONS	921	=head2 CORE EXTENSIONS
1003		922
1004	Functions and methods that extend core crossfire objects.	923	Functions and methods that extend core crossfire objects.
1005		924
		925	=cut
		926
		927	package cf::player;
		928
		929	use Coro::AIO;
		930
1006	=head3 cf::player	931	=head3 cf::player
1007		932
1008	=over 4	933	=over 4
1009		934
1010	=item cf::player::exists $login	935	=item cf::player::find $login
1011		936
1012	Returns true when the given account exists.	937	Returns the given player object, loading it if necessary (might block).
1013		938
1014	=cut	939	=cut
1015		940
1016	sub cf::player::exists($) {	941	sub playerdir($) {
1017	cf::player::find $_[0]	942	cf::localdir
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	943	. "/"
		944	. cf::playerdir
		945	. "/"
		946	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		947	}
		948
		949	sub path($) {
		950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		951
		952	(playerdir $login) . "/$login.pl"
		953	}
		954
		955	sub find_active($) {
		956	$cf::PLAYER{$_[0]}
		957	and $cf::PLAYER{$_[0]}->active
		958	and $cf::PLAYER{$_[0]}
		959	}
		960
		961	sub exists($) {
		962	my ($login) = @_;
		963
		964	$cf::PLAYER{$login}
		965	or cf::sync_job { !aio_stat path $login }
		966	}
		967
		968	sub find($) {
		969	return $cf::PLAYER{$_[0]} || do {
		970	my $login = $_[0];
		971
		972	my $guard = cf::lock_acquire "user_find:$login";
		973
		974	$cf::PLAYER{$_[0]} || do {
		975	my $pl = load_pl path $login
		976	or return;
		977	$cf::PLAYER{$login} = $pl
		978	}
		979	}
		980	}
		981
		982	sub save($) {
		983	my ($pl) = @_;
		984
		985	return if $pl->{deny_save};
		986
		987	my $path = path $pl;
		988	my $guard = cf::lock_acquire "user_save:$path";
		989
		990	return if $pl->{deny_save};
		991
		992	aio_mkdir playerdir $pl, 0770;
		993	$pl->{last_save} = $cf::RUNTIME;
		994
		995	$pl->save_pl ($path);
		996	Coro::cede;
		997	}
		998
		999	sub new($) {
		1000	my ($login) = @_;
		1001
		1002	my $self = create;
		1003
		1004	$self->ob->name ($login);
		1005	$self->{deny_save} = 1;
		1006
		1007	$cf::PLAYER{$login} = $self;
		1008
		1009	$self
		1010	}
		1011
		1012	=item $pl->quit_character
		1013
		1014	Nukes the player without looking back. If logged in, the connection will
		1015	be destroyed. May block for a long time.
		1016
		1017	=cut
		1018
		1019	sub quit_character {
		1020	my ($pl) = @_;
		1021
		1022	$pl->{deny_save} = 1;
		1023	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1024
		1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1026	$pl->deactivate;
		1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1028	$pl->ns->destroy if $pl->ns;
		1029
		1030	my $path = playerdir $pl;
		1031	my $temp = "$path~$cf::RUNTIME~deleting~";
		1032	aio_rename $path, $temp;
		1033	delete $cf::PLAYER{$pl->ob->name};
		1034	$pl->destroy;
		1035	IO::AIO::aio_rmtree $temp;
		1036	}
		1037
		1038	=item cf::player::list_logins
		1039
		1040	Returns am arrayref of all valid playernames in the system, can take a
		1041	while and may block, so not sync_job-capable, ever.
		1042
		1043	=cut
		1044
		1045	sub list_logins {
		1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1047	or return [];
		1048
		1049	my @logins;
		1050
		1051	for my $login (@$dirs) {
		1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1053	aio_read $fh, 0, 512, my $buf, 0 or next;
		1054	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1055
		1056	utf8::decode $login;
		1057	push @logins, $login;
		1058	}
		1059
		1060	\@logins
		1061	}
		1062
		1063	=item $player->maps
		1064
		1065	Returns an arrayref of map paths that are private for this
		1066	player. May block.
		1067
		1068	=cut
		1069
		1070	sub maps($) {
		1071	my ($pl) = @_;
		1072
		1073	my $files = aio_readdir playerdir $pl
		1074	or return;
		1075
		1076	my @paths;
		1077
		1078	for (@$files) {
		1079	utf8::decode $_;
		1080	next if /\.(?:pl|pst)$/;
		1081	next unless /^$PATH_SEP/o;
		1082
		1083	s/\.map$//;
		1084	push @paths, "~" . $pl->ob->name . "/" . $_;
		1085	}
		1086
		1087	\@paths
1019	}	1088	}
1020		1089
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1090	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022		1091
1023	Sends an ext reply to the player.	1092	Sends an ext reply to the player.
1024		1093
1025	=cut	1094	=cut
1026		1095
1027	sub cf::player::ext_reply($$$%) {	1096	sub ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;	1097	my ($self, $id, %msg) = @_;
1029		1098
1030	$msg{msgid} = $id;	1099	$msg{msgid} = $id;
1031		1100
1032	$self->send ("ext " . to_json \%msg);	1101	$self->send ("ext " . cf::to_json \%msg);
1033	}	1102	}
		1103
		1104	package cf;
1034		1105
1035	=back	1106	=back
1036		1107
1037		1108
1038	=head3 cf::map	1109	=head3 cf::map
…		…
1044	package cf::map;	1115	package cf::map;
1045		1116
1046	use Fcntl;	1117	use Fcntl;
1047	use Coro::AIO;	1118	use Coro::AIO;
1048		1119
		1120	use overload
		1121	'""' => \&as_string,
		1122	fallback => 1;
		1123
1049	our $MAX_RESET = 7200;	1124	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1125	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1126
1054	sub generate_random_map {	1127	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1128	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1129	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1130	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1134	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1135	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1141	(cf::region::find $rmp->{region}), $rmp->{custom}
		1142	)
		1143	}
		1144
		1145	=item cf::map->register ($regex, $prio)
		1146
		1147	Register a handler for the map path matching the given regex at the
		1148	givne priority (higher is better, built-in handlers have priority 0, the
		1149	default).
		1150
		1151	=cut
		1152
		1153	sub register {
		1154	my (undef, $regex, $prio) = @_;
		1155	my $pkg = caller;
		1156
		1157	no strict;
		1158	push @{"$pkg\::ISA"}, __PACKAGE__;
		1159
		1160	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1161	}
		1162
		1163	# also paths starting with '/'
		1164	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1165
		1166	sub thawer_merge {
		1167	my ($self, $merge) = @_;
		1168
		1169	# we have to keep some variables in memory intact
		1170	local $self->{path};
		1171	local $self->{load_path};
		1172	local $self->{deny_save};
		1173	local $self->{deny_reset};
		1174
		1175	$self->SUPER::thawer_merge ($merge);
		1176	}
		1177
		1178	sub normalise {
		1179	my ($path, $base) = @_;
		1180
		1181	$path = "$path"; # make sure its a string
		1182
		1183	# map plan:
		1184	#
		1185	# /! non-realised random map exit (special hack!)
		1186	# {... are special paths that are not being touched
		1187	# ?xxx/... are special absolute paths
		1188	# ?random/... random maps
		1189	# /... normal maps
		1190	# ~user/... per-player map of a specific user
		1191
		1192	$path =~ s/$PATH_SEP/\//go;
		1193
		1194	# treat it as relative path if it starts with
		1195	# something that looks reasonable
		1196	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1197	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1198
		1199	$base =~ s{[^/]+/?$}{};
		1200	$path = "$base/$path";
		1201	}
		1202
		1203	for ($path) {
		1204	redo if s{//}{/};
		1205	redo if s{/\.?/}{/};
		1206	redo if s{/[^/]+/\.\./}{/};
		1207	}
		1208
		1209	$path
		1210	}
		1211
		1212	sub new_from_path {
		1213	my (undef, $path, $base) = @_;
		1214
		1215	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1216
		1217	$path = normalise $path, $base;
		1218
		1219	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1220	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1221	my $self = bless cf::map::new, $pkg;
		1222	$self->{path} = $path; $self->path ($path);
		1223	$self->init; # pass $1 etc.
		1224	return $self;
		1225	}
		1226	}
		1227
		1228	Carp::carp "unable to resolve path '$path' (base '$base').";
		1229	()
		1230	}
		1231
		1232	sub init {
		1233	my ($self) = @_;
		1234
		1235	$self
		1236	}
		1237
		1238	sub as_string {
		1239	my ($self) = @_;
		1240
		1241	"$self->{path}"
		1242	}
		1243
		1244	# the displayed name, this is a one way mapping
		1245	sub visible_name {
		1246	&as_string
		1247	}
		1248
		1249	# the original (read-only) location
		1250	sub load_path {
		1251	my ($self) = @_;
		1252
		1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1254	}
		1255
		1256	# the temporary/swap location
		1257	sub save_path {
		1258	my ($self) = @_;
		1259
		1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1262	}
		1263
		1264	# the unique path, undef == no special unique path
		1265	sub uniq_path {
		1266	my ($self) = @_;
		1267
		1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1071	}	1270	}
1072		1271
1073	# and all this just because we cannot iterate over	1272	# and all this just because we cannot iterate over
1074	# all maps in C++...	1273	# all maps in C++...
1075	sub change_all_map_light {	1274	sub change_all_map_light {
1076	my ($change) = @_;	1275	my ($change) = @_;
1077		1276
1078	$_->change_map_light ($change) for values %cf::MAP;	1277	$_->change_map_light ($change)
		1278	for grep $_->outdoor, values %cf::MAP;
1079	}	1279	}
1080		1280
		1281	sub unlink_save {
		1282	my ($self) = @_;
		1283
		1284	utf8::encode (my $save = $self->save_path);
		1285	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1286	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1287	}
		1288
1081	sub try_load_header($) {	1289	sub load_header_from($) {
1082	my ($path) = @_;	1290	my ($self, $path) = @_;
1083		1291
1084	utf8::encode $path;	1292	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1293	aio_open $path, O_RDONLY, 0
1086	or return;	1294	or return;
1087		1295
1088	my $map = cf::map::new	1296	$self->_load_header ($path)
1089	or return;	1297	or return;
1090		1298
1091	$map->load_header ($path)	1299	$self->{load_path} = $path;
		1300
		1301	1
		1302	}
		1303
		1304	sub load_header_orig {
		1305	my ($self) = @_;
		1306
		1307	$self->load_header_from ($self->load_path)
		1308	}
		1309
		1310	sub load_header_temp {
		1311	my ($self) = @_;
		1312
		1313	$self->load_header_from ($self->save_path)
		1314	}
		1315
		1316	sub prepare_temp {
		1317	my ($self) = @_;
		1318
		1319	$self->last_access ((delete $self->{last_access})
		1320	|| $cf::RUNTIME); #d#
		1321	# safety
		1322	$self->{instantiate_time} = $cf::RUNTIME
		1323	if $self->{instantiate_time} > $cf::RUNTIME;
		1324	}
		1325
		1326	sub prepare_orig {
		1327	my ($self) = @_;
		1328
		1329	$self->{load_original} = 1;
		1330	$self->{instantiate_time} = $cf::RUNTIME;
		1331	$self->last_access ($cf::RUNTIME);
		1332	$self->instantiate;
		1333	}
		1334
		1335	sub load_header {
		1336	my ($self) = @_;
		1337
		1338	if ($self->load_header_temp) {
		1339	$self->prepare_temp;
		1340	} else {
		1341	$self->load_header_orig
1092	or return;	1342	or return;
		1343	$self->prepare_orig;
		1344	}
1093		1345
1094	$map->{load_path} = $path;	1346	1
1095	use Data::Dumper; warn Dumper $map;#d#
1096
1097	$map
1098	}	1347	}
1099		1348
		1349	sub find;
1100	sub find_map {	1350	sub find {
1101	my ($path, $origin) = @_;	1351	my ($path, $origin) = @_;
1102		1352
1103	#warn "find_map<$path,$origin>\n";#d#	1353	$path = normalise $path, $origin && $origin->path;
1104		1354
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1355	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1356
1108	$cf::MAP{$key} || do {	1357	$cf::MAP{$path} || do {
1109	# do it the slow way	1358	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1359	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1360	or return;
1124		1361
1125	$map->{load_original} = 1;
1126	$map->{instantiate_time} = $cf::RUNTIME;
1127	$map->instantiate;
1128
1129	# per-player maps become, after loading, normal maps
1130	$map->per_player (0) if $path->{user_rel};
1131	}
1132
1133	$map->path ($key);
1134	$map->{path} = $path;
1135	$map->last_access ($cf::RUNTIME);	1362	$map->{last_save} = $cf::RUNTIME;
1136		1363
1137	$map->reset if $map->should_reset;	1364	$map->load_header
		1365	or return;
1138		1366
		1367	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1368	# doing this can freeze the server in a sync job, obviously
		1369	#$cf::WAIT_FOR_TICK->wait;
		1370	$map->reset;
		1371	undef $guard;
		1372	return find $path;
		1373	}
		1374
1139	$cf::MAP{$key} = $map	1375	$cf::MAP{$path} = $map
1140	}	1376	}
1141	}	1377	}
		1378
		1379	sub pre_load { }
		1380	sub post_load { }
1142		1381
1143	sub load {	1382	sub load {
1144	my ($self) = @_;	1383	my ($self) = @_;
1145		1384
		1385	local $self->{deny_reset} = 1; # loading can take a long time
		1386
		1387	my $path = $self->{path};
		1388	my $guard = cf::lock_acquire "map_load:$path";
		1389
1146	return if $self->in_memory != cf::MAP_SWAPPED;	1390	return if $self->in_memory != cf::MAP_SWAPPED;
1147		1391
1148	$self->in_memory (cf::MAP_LOADING);	1392	$self->in_memory (cf::MAP_LOADING);
1149		1393
1150	my $path = $self->{path};
1151
1152	$self->alloc;	1394	$self->alloc;
		1395
		1396	$self->pre_load;
		1397
1153	$self->load_objects ($self->{load_path}, 1)	1398	$self->_load_objects ($self->{load_path}, 1)
1154	or return;	1399	or return;
1155		1400
1156	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};	1401	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1402	if delete $self->{load_original};
1157		1403
1158	if (my $uniq = $path->uniq_path) {	1404	if (my $uniq = $self->uniq_path) {
1159	utf8::encode $uniq;	1405	utf8::encode $uniq;
1160	if (aio_open $uniq, O_RDONLY, 0) {	1406	if (aio_open $uniq, O_RDONLY, 0) {
1161	$self->clear_unique_items;	1407	$self->clear_unique_items;
1162	$self->load_objects ($uniq, 0);	1408	$self->_load_objects ($uniq, 0);
1163	}	1409	}
1164	}	1410	}
		1411
		1412	Coro::cede;
1165		1413
1166	# now do the right thing for maps	1414	# now do the right thing for maps
1167	$self->link_multipart_objects;	1415	$self->link_multipart_objects;
1168		1416
1169	if ($self->{path}->is_style_map) {	1417	unless ($self->{deny_activate}) {
1170	$self->{deny_save} = 1;	1418	$self->decay_objects;
1171	$self->{deny_reset} = 1;
1172	} else {
1173	$self->fix_auto_apply;	1419	$self->fix_auto_apply;
1174	$self->decay_objects;
1175	$self->update_buttons;	1420	$self->update_buttons;
		1421	Coro::cede;
1176	$self->set_darkness_map;	1422	$self->set_darkness_map;
1177	$self->difficulty ($self->estimate_difficulty)	1423	$self->difficulty ($self->estimate_difficulty)
1178	unless $self->difficulty;	1424	unless $self->difficulty;
		1425	Coro::cede;
1179	$self->activate;	1426	$self->activate;
1180	}	1427	}
1181		1428
		1429	$self->post_load;
		1430
1182	$self->in_memory (cf::MAP_IN_MEMORY);	1431	$self->in_memory (cf::MAP_IN_MEMORY);
1183	}	1432	}
1184		1433
1185	sub load_map_sync {	1434	sub customise_for {
		1435	my ($self, $ob) = @_;
		1436
		1437	return find "~" . $ob->name . "/" . $self->{path}
		1438	if $self->per_player;
		1439
		1440	$self
		1441	}
		1442
		1443	# find and load all maps in the 3x3 area around a map
		1444	sub load_diag {
		1445	my ($map) = @_;
		1446
		1447	my @diag; # diagonal neighbours
		1448
		1449	for (0 .. 3) {
		1450	my $neigh = $map->tile_path ($_)
		1451	or next;
		1452	$neigh = find $neigh, $map
		1453	or next;
		1454	$neigh->load;
		1455
		1456	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1457	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1458	}
		1459
		1460	for (@diag) {
		1461	my $neigh = find @$_
		1462	or next;
		1463	$neigh->load;
		1464	}
		1465	}
		1466
		1467	sub find_sync {
1186	my ($path, $origin) = @_;	1468	my ($path, $origin) = @_;
1187		1469
1188	#warn "load_map_sync<$path, $origin>\n";#d#	1470	cf::sync_job { find $path, $origin }
		1471	}
1189		1472
1190	cf::sync_job {	1473	sub do_load_sync {
1191	my $map = cf::map::find_map $path, $origin	1474	my ($map) = @_;
1192	or return;	1475
		1476	cf::sync_job { $map->load };
		1477	}
		1478
		1479	our %MAP_PREFETCH;
		1480	our $MAP_PREFETCHER = undef;
		1481
		1482	sub find_async {
		1483	my ($path, $origin) = @_;
		1484
		1485	$path = normalise $path, $origin && $origin->{path};
		1486
		1487	if (my $map = $cf::MAP{$path}) {
		1488	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1489	}
		1490
		1491	undef $MAP_PREFETCH{$path};
		1492	$MAP_PREFETCHER ||= cf::async {
		1493	while (%MAP_PREFETCH) {
		1494	for my $path (keys %MAP_PREFETCH) {
		1495	my $map = find $path
		1496	or next;
1193	$map->load;	1497	$map->load;
1194	$map	1498
		1499	delete $MAP_PREFETCH{$path};
		1500	}
		1501	}
		1502	undef $MAP_PREFETCHER;
1195	}	1503	};
		1504	$MAP_PREFETCHER->prio (6);
		1505
		1506	()
1196	}	1507	}
1197		1508
1198	sub save {	1509	sub save {
1199	my ($self) = @_;	1510	my ($self) = @_;
1200		1511
1201	my $save = $self->{path}->save_path; utf8::encode $save;	1512	my $lock = cf::lock_acquire "map_data:" . $self->path;
1202	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203		1513
1204	$self->{last_save} = $cf::RUNTIME;	1514	$self->{last_save} = $cf::RUNTIME;
1205		1515
1206	return unless $self->dirty;	1516	return unless $self->dirty;
1207		1517
		1518	my $save = $self->save_path; utf8::encode $save;
		1519	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1520
1208	$self->{load_path} = $save;	1521	$self->{load_path} = $save;
1209		1522
1210	return if $self->{deny_save};	1523	return if $self->{deny_save};
1211		1524
1212	warn "saving map ", $self->path;	1525	local $self->{last_access} = $self->last_access;#d#
		1526
		1527	cf::async {
		1528	$_->contr->save for $self->players;
		1529	};
1213		1530
1214	if ($uniq) {	1531	if ($uniq) {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1532	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216	$self->save_objects ($uniq, cf::IO_UNIQUES);	1533	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1217	} else {	1534	} else {
1218	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1535	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219	}	1536	}
1220	}	1537	}
1221		1538
1222	sub swap_out {	1539	sub swap_out {
1223	my ($self) = @_;	1540	my ($self) = @_;
		1541
		1542	# save first because save cedes
		1543	$self->save;
		1544
		1545	my $lock = cf::lock_acquire "map_data:" . $self->path;
1224		1546
1225	return if $self->players;	1547	return if $self->players;
1226	return if $self->in_memory != cf::MAP_IN_MEMORY;	1548	return if $self->in_memory != cf::MAP_IN_MEMORY;
1227	return if $self->{deny_save};	1549	return if $self->{deny_save};
1228		1550
1229	$self->save;
1230	$self->clear;	1551	$self->clear;
1231	$self->in_memory (cf::MAP_SWAPPED);	1552	$self->in_memory (cf::MAP_SWAPPED);
1232	}	1553	}
1233		1554
		1555	sub reset_at {
		1556	my ($self) = @_;
		1557
		1558	# TODO: safety, remove and allow resettable per-player maps
		1559	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1560	return 1e99 if $self->{deny_reset};
		1561
		1562	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1563	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1564
		1565	$time + $to
		1566	}
		1567
1234	sub should_reset {	1568	sub should_reset {
1235	my ($map) = @_;
1236
1237	# TODO: safety, remove and allow resettable per-player maps
1238	return if $map->{path}{user_rel};#d#
1239	return if $map->{deny_reset};
1240	#return unless $map->reset_timeout;
1241
1242	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243	my $to = $map->reset_timeout || $DEFAULT_RESET;
1244	$to = $MAX_RESET if $to > $MAX_RESET;
1245
1246	$time + $to < $cf::RUNTIME
1247	}
1248
1249	sub unlink_save {
1250	my ($self) = @_;	1569	my ($self) = @_;
1251		1570
1252	utf8::encode (my $save = $self->{path}->save_path);	1571	$self->reset_at <= $cf::RUNTIME
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255	}	1572	}
1256		1573
1257	sub reset {	1574	sub reset {
1258	my ($self) = @_;	1575	my ($self) = @_;
1259		1576
		1577	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1578
1260	return if $self->players;	1579	return if $self->players;
1261	return if $self->{path}{user_rel};#d#	1580	return if $self->isa ("ext::map_per_player");#d#
1262		1581
1263	warn "resetting map ", $self->path;#d#	1582	warn "resetting map ", $self->path;#d#
1264		1583
1265	delete $cf::MAP{$self->path};	1584	delete $cf::MAP{$self->path};
		1585
		1586	$self->in_memory (cf::MAP_SWAPPED);
		1587	$self->clear;
1266		1588
1267	$_->clear_links_to ($self) for values %cf::MAP;	1589	$_->clear_links_to ($self) for values %cf::MAP;
1268		1590
1269	$self->unlink_save;	1591	$self->unlink_save;
1270	$self->destroy;	1592	$self->destroy;
1271	}	1593	}
1272		1594
1273	sub customise_for {	1595	my $nuke_counter = "aaaa";
1274	my ($map, $ob) = @_;
1275		1596
1276	if ($map->per_player) {	1597	sub nuke {
1277	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1598	my ($self) = @_;
1278	}
1279		1599
1280	$map	1600	delete $cf::MAP{$self->path};
1281	}
1282		1601
1283	sub emergency_save {	1602	$self->unlink_save;
1284	local $cf::FREEZE = 1;
1285		1603
1286	warn "enter emergency map save\n";	1604	bless $self, "cf::map";
		1605	delete $self->{deny_reset};
		1606	$self->{deny_save} = 1;
		1607	$self->reset_timeout (1);
		1608	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1287		1609
1288	cf::sync_job {	1610	$cf::MAP{$self->path} = $self;
1289	warn "begin emergency map save\n";	1611
1290	$_->save for values %cf::MAP;	1612	$self->reset; # polite request, might not happen
		1613	}
		1614
		1615	=item cf::map::unique_maps
		1616
		1617	Returns an arrayref of paths of all shared maps that have
		1618	instantiated unique items. May block.
		1619
		1620	=cut
		1621
		1622	sub unique_maps() {
		1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1624	or return;
		1625
		1626	my @paths;
		1627
		1628	for (@$files) {
		1629	utf8::decode $_;
		1630	next if /\.pst$/;
		1631	next unless /^$PATH_SEP/o;
		1632
		1633	s/\.map$//;
		1634	push @paths, $_;
1291	};	1635	}
1292		1636
1293	warn "end emergency map save\n";	1637	\@paths
1294	}	1638	}
1295		1639
1296	package cf;	1640	package cf;
1297		1641
1298	=back	1642	=back
1299		1643
		1644	=head3 cf::object
		1645
		1646	=cut
		1647
		1648	package cf::object;
		1649
		1650	=over 4
		1651
		1652	=item $ob->inv_recursive
		1653
		1654	Returns the inventory of the object _and_ their inventories, recursively.
		1655
		1656	=cut
		1657
		1658	sub inv_recursive_;
		1659	sub inv_recursive_ {
		1660	map { $_, inv_recursive_ $_->inv } @_
		1661	}
		1662
		1663	sub inv_recursive {
		1664	inv_recursive_ inv $_[0]
		1665	}
		1666
		1667	package cf;
		1668
		1669	=back
1300		1670
1301	=head3 cf::object::player	1671	=head3 cf::object::player
1302		1672
1303	=over 4	1673	=over 4
1304		1674
…		…
1340	(ref $cf::CFG{"may_$access"}	1710	(ref $cf::CFG{"may_$access"}
1341	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1711	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342	: $cf::CFG{"may_$access"})	1712	: $cf::CFG{"may_$access"})
1343	}	1713	}
1344		1714
		1715	=item $player_object->enter_link
		1716
		1717	Freezes the player and moves him/her to a special map (C<{link}>).
		1718
		1719	The player should be reasonably safe there for short amounts of time. You
		1720	I<MUST> call C<leave_link> as soon as possible, though.
		1721
		1722	Will never block.
		1723
		1724	=item $player_object->leave_link ($map, $x, $y)
		1725
		1726	Moves the player out of the special C<{link}> map onto the specified
		1727	map. If the map is not valid (or omitted), the player will be moved back
		1728	to the location he/she was before the call to C<enter_link>, or, if that
		1729	fails, to the emergency map position.
		1730
		1731	Might block.
		1732
		1733	=cut
		1734
		1735	sub link_map {
		1736	unless ($LINK_MAP) {
		1737	$LINK_MAP = cf::map::find "{link}"
		1738	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1739	$LINK_MAP->load;
		1740	}
		1741
		1742	$LINK_MAP
		1743	}
		1744
1345	sub cf::object::player::enter_link {	1745	sub cf::object::player::enter_link {
1346	my ($self) = @_;	1746	my ($self) = @_;
1347		1747
1348	return if $self->map == $LINK_MAP;	1748	$self->deactivate_recursive;
1349		1749
		1750	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1751
1350	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1752	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1351	if $self->map;	1753	if $self->map;
1352		1754
1353	$self->enter_map ($LINK_MAP, 20, 20);	1755	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1354	$self->deactivate_recursive;
1355	}	1756	}
1356		1757
1357	sub cf::object::player::leave_link {	1758	sub cf::object::player::leave_link {
1358	my ($self, $map, $x, $y) = @_;	1759	my ($self, $map, $x, $y) = @_;
1359		1760
1360	my $link_pos = delete $self->{_link_pos};	1761	my $link_pos = delete $self->{_link_pos};
1361		1762
1362	unless ($map) {	1763	unless ($map) {
1363	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365	# restore original map position	1764	# restore original map position
1366	($map, $x, $y) = @{ $link_pos || [] };	1765	($map, $x, $y) = @{ $link_pos || [] };
1367	$map = cf::map::find_map $map;	1766	$map = cf::map::find $map;
1368		1767
1369	unless ($map) {	1768	unless ($map) {
1370	($map, $x, $y) = @$EMERGENCY_POSITION;	1769	($map, $x, $y) = @$EMERGENCY_POSITION;
1371	$map = cf::map::find_map $map	1770	$map = cf::map::find $map
1372	or die "FATAL: cannot load emergency map\n";	1771	or die "FATAL: cannot load emergency map\n";
1373	}	1772	}
1374	}	1773	}
1375		1774
1376	($x, $y) = (-1, -1)	1775	($x, $y) = (-1, -1)
…		…
1379	# use -1 or undef as default coordinates, not 0, 0	1778	# use -1 or undef as default coordinates, not 0, 0
1380	($x, $y) = ($map->enter_x, $map->enter_y)	1779	($x, $y) = ($map->enter_x, $map->enter_y)
1381	if $x <=0 && $y <= 0;	1780	if $x <=0 && $y <= 0;
1382		1781
1383	$map->load;	1782	$map->load;
		1783	$map->load_diag;
1384		1784
		1785	return unless $self->contr->active;
1385	$self->activate_recursive;	1786	$self->activate_recursive;
1386	$self->enter_map ($map, $x, $y);	1787	$self->enter_map ($map, $x, $y);
1387	}	1788	}
1388		1789
		1790	cf::player->attach (
		1791	on_logout => sub {
		1792	my ($pl) = @_;
		1793
		1794	# abort map switching before logout
		1795	if ($pl->ob->{_link_pos}) {
		1796	cf::sync_job {
		1797	$pl->ob->leave_link
		1798	};
		1799	}
		1800	},
		1801	on_login => sub {
		1802	my ($pl) = @_;
		1803
		1804	# try to abort aborted map switching on player login :)
		1805	# should happen only on crashes
		1806	if ($pl->ob->{_link_pos}) {
		1807	$pl->ob->enter_link;
		1808	(async {
		1809	# we need this sleep as the login has a concurrent enter_exit running
		1810	# and this sleep increases chances of the player not ending up in scorn
		1811	$pl->ob->reply (undef,
		1812	"There was an internal problem at your last logout, "
		1813	. "the server will try to bring you to your intended destination in a second.",
		1814	cf::NDI_RED);
		1815	Coro::Timer::sleep 1;
		1816	$pl->ob->leave_link;
		1817	})->prio (2);
		1818	}
		1819	},
		1820	);
		1821
1389	=item $player_object->goto_map ($map, $x, $y)	1822	=item $player_object->goto ($path, $x, $y)
1390		1823
1391	=cut	1824	=cut
1392		1825
1393	sub cf::object::player::goto_map {	1826	sub cf::object::player::goto {
1394	my ($self, $path, $x, $y) = @_;	1827	my ($self, $path, $x, $y) = @_;
1395		1828
1396	$self->enter_link;	1829	$self->enter_link;
1397		1830
1398	(Coro::async {	1831	(async {
1399	$path = new cf::path $path;
1400
1401	my $map = cf::map::find_map $path->as_string;	1832	my $map = cf::map::find $path;
1402	$map = $map->customise_for ($self) if $map;	1833	$map = $map->customise_for ($self) if $map;
1403		1834
1404	warn "entering ", $map->path, " at ($x, $y)\n"	1835	# warn "entering ", $map->path, " at ($x, $y)\n"
1405	if $map;	1836	# if $map;
		1837
		1838	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1406		1839
1407	$self->leave_link ($map, $x, $y);	1840	$self->leave_link ($map, $x, $y);
1408	})->prio (1);	1841	})->prio (1);
1409	}	1842	}
1410		1843
…		…
1414		1847
1415	sub parse_random_map_params {	1848	sub parse_random_map_params {
1416	my ($spec) = @_;	1849	my ($spec) = @_;
1417		1850
1418	my $rmp = { # defaults	1851	my $rmp = { # defaults
1419	xsize => 10,	1852	xsize => (cf::rndm 15, 40),
1420	ysize => 10,	1853	ysize => (cf::rndm 15, 40),
		1854	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1855	#layout => string,
1421	};	1856	};
1422		1857
1423	for (split /\n/, $spec) {	1858	for (split /\n/, $spec) {
1424	my ($k, $v) = split /\s+/, $_, 2;	1859	my ($k, $v) = split /\s+/, $_, 2;
1425		1860
…		…
1429	$rmp	1864	$rmp
1430	}	1865	}
1431		1866
1432	sub prepare_random_map {	1867	sub prepare_random_map {
1433	my ($exit) = @_;	1868	my ($exit) = @_;
		1869
		1870	my $guard = cf::lock_acquire "exit_prepare:$exit";
1434		1871
1435	# all this does is basically replace the /! path by	1872	# all this does is basically replace the /! path by
1436	# a new random map path (?random/...) with a seed	1873	# a new random map path (?random/...) with a seed
1437	# that depends on the exit object	1874	# that depends on the exit object
1438		1875
…		…
1447		1884
1448	$rmp->{random_seed} ||= $exit->random_seed;	1885	$rmp->{random_seed} ||= $exit->random_seed;
1449		1886
1450	my $data = cf::to_json $rmp;	1887	my $data = cf::to_json $rmp;
1451	my $md5 = Digest::MD5::md5_hex $data;	1888	my $md5 = Digest::MD5::md5_hex $data;
		1889	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1452		1890
1453	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1891	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1454	aio_write $fh, 0, (length $data), $data, 0;	1892	aio_write $fh, 0, (length $data), $data, 0;
		1893	undef $fh;
		1894	aio_rename "$meta~", $meta;
1455		1895
1456	$exit->slaying ("?random/$md5");	1896	$exit->slaying ("?random/$md5");
1457	$exit->msg (undef);	1897	$exit->msg (undef);
1458	}	1898	}
1459	}	1899	}
…		…
1461	sub cf::object::player::enter_exit {	1901	sub cf::object::player::enter_exit {
1462	my ($self, $exit) = @_;	1902	my ($self, $exit) = @_;
1463		1903
1464	return unless $self->type == cf::PLAYER;	1904	return unless $self->type == cf::PLAYER;
1465		1905
		1906	if ($exit->slaying eq "/!") {
		1907	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1908	cf::sync_job { prepare_random_map $exit };
		1909	}
		1910
		1911	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1912	my $hp = $exit->stats->hp;
		1913	my $sp = $exit->stats->sp;
		1914
1466	$self->enter_link;	1915	$self->enter_link;
1467		1916
1468	(Coro::async {	1917	(async {
		1918	$self->deactivate_recursive; # just to be sure
1469	unless (eval {	1919	unless (eval {
1470		1920	$self->goto ($slaying, $hp, $sp);
1471	prepare_random_map $exit
1472	if $exit->slaying eq "/!";
1473
1474	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1475	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1476		1921
1477	1;	1922	1;
1478	}) {	1923	}) {
1479	$self->message ("Something went wrong deep within the crossfire server. "	1924	$self->message ("Something went wrong deep within the crossfire server. "
1480	. "I'll try to bring you back to the map you were before. "	1925	. "I'll try to bring you back to the map you were before. "
1481	. "Please report this to the dungeon master",	1926	. "Please report this to the dungeon master!",
1482	cf::NDI_UNIQUE | cf::NDI_RED);	1927	cf::NDI_UNIQUE | cf::NDI_RED);
1483		1928
1484	warn "ERROR in enter_exit: $@";	1929	warn "ERROR in enter_exit: $@";
1485	$self->leave_link;	1930	$self->leave_link;
1486	}	1931	}
…		…
1537	on_reply => sub {	1982	on_reply => sub {
1538	my ($ns, $msg) = @_;	1983	my ($ns, $msg) = @_;
1539		1984
1540	# this weird shuffling is so that direct followup queries	1985	# this weird shuffling is so that direct followup queries
1541	# get handled first	1986	# get handled first
1542	my $queue = delete $ns->{query_queue};	1987	my $queue = delete $ns->{query_queue}
		1988	or return; # be conservative, not sure how that can happen, but we saw a crash here
1543		1989
1544	(shift @$queue)->[1]->($msg);	1990	(shift @$queue)->[1]->($msg);
1545		1991
1546	push @{ $ns->{query_queue} }, @$queue;	1992	push @{ $ns->{query_queue} }, @$queue;
1547		1993
…		…
1553	}	1999	}
1554	}	2000	}
1555	},	2001	},
1556	);	2002	);
1557		2003
1558	=item $client->coro (\&cb)	2004	=item $client->async (\&cb)
1559		2005
1560	Create a new coroutine, running the specified callback. The coroutine will	2006	Create a new coroutine, running the specified callback. The coroutine will
1561	be automatically cancelled when the client gets destroyed (e.g. on logout,	2007	be automatically cancelled when the client gets destroyed (e.g. on logout,
1562	or loss of connection).	2008	or loss of connection).
1563		2009
1564	=cut	2010	=cut
1565		2011
1566	sub cf::client::coro {	2012	sub cf::client::async {
1567	my ($self, $cb) = @_;	2013	my ($self, $cb) = @_;
1568		2014
1569	my $coro; $coro = async {	2015	my $coro = &Coro::async ($cb);
1570	eval {
1571	$cb->();
1572	};
1573	warn $@ if $@;
1574	};
1575		2016
1576	$coro->on_destroy (sub {	2017	$coro->on_destroy (sub {
1577	delete $self->{_coro}{$coro+0};	2018	delete $self->{_coro}{$coro+0};
1578	});	2019	});
1579		2020
…		…
1751		2192
1752	{	2193	{
1753	my $path = cf::localdir . "/database.pst";	2194	my $path = cf::localdir . "/database.pst";
1754		2195
1755	sub db_load() {	2196	sub db_load() {
1756	warn "loading database $path\n";#d# remove later
1757	$DB = stat $path ? Storable::retrieve $path : { };	2197	$DB = stat $path ? Storable::retrieve $path : { };
1758	}	2198	}
1759		2199
1760	my $pid;	2200	my $pid;
1761		2201
1762	sub db_save() {	2202	sub db_save() {
1763	warn "saving database $path\n";#d# remove later
1764	waitpid $pid, 0 if $pid;	2203	waitpid $pid, 0 if $pid;
1765	if (0 == ($pid = fork)) {	2204	if (0 == ($pid = fork)) {
1766	$DB->{_meta}{version} = 1;	2205	$DB->{_meta}{version} = 1;
1767	Storable::nstore $DB, "$path~";	2206	Storable::nstore $DB, "$path~";
1768	rename "$path~", $path;	2207	rename "$path~", $path;
…		…
1775	sub db_sync() {	2214	sub db_sync() {
1776	db_save if $dirty;	2215	db_save if $dirty;
1777	undef $dirty;	2216	undef $dirty;
1778	}	2217	}
1779		2218
1780	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2219	my $idle = Event->idle (
1781	db_sync;	2220	reentrant => 0,
		2221	min => 10,
		2222	max => 20,
		2223	repeat => 0,
		2224	data => WF_AUTOCANCEL,
		2225	cb => \&db_sync,
1782	});	2226	);
1783		2227
1784	sub db_dirty() {	2228	sub db_dirty() {
1785	$dirty = 1;	2229	$dirty = 1;
1786	$idle->start;	2230	$idle->start;
1787	}	2231	}
…		…
1816	open my $fh, "<:utf8", cf::confdir . "/config"	2260	open my $fh, "<:utf8", cf::confdir . "/config"
1817	or return;	2261	or return;
1818		2262
1819	local $/;	2263	local $/;
1820	*CFG = YAML::Syck::Load <$fh>;	2264	*CFG = YAML::Syck::Load <$fh>;
		2265
		2266	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2267
		2268	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2269	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2270
		2271	if (exists $CFG{mlockall}) {
		2272	eval {
		2273	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2274	and die "WARNING: m(un)lockall failed: $!\n";
		2275	};
		2276	warn $@ if $@;
		2277	}
1821	}	2278	}
1822		2279
1823	sub main {	2280	sub main {
1824	# we must not ever block the main coroutine	2281	# we must not ever block the main coroutine
1825	local $Coro::idle = sub {	2282	local $Coro::idle = sub {
1826	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2283	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827	(Coro::unblock_sub {	2284	(async {
1828	Event::one_event;	2285	Event::one_event;
1829	})->();	2286	})->prio (Coro::PRIO_MAX);
1830	};	2287	};
1831		2288
1832	cfg_load;	2289	cfg_load;
1833	db_load;	2290	db_load;
1834	load_extensions;	2291	load_extensions;
		2292
		2293	$TICK_WATCHER->start;
1835	Event::loop;	2294	Event::loop;
1836	}	2295	}
1837		2296
1838	#############################################################################	2297	#############################################################################
1839	# initialisation	2298	# initialisation and cleanup
		2299
		2300	# install some emergency cleanup handlers
		2301	BEGIN {
		2302	for my $signal (qw(INT HUP TERM)) {
		2303	Event->signal (
		2304	reentrant => 0,
		2305	data => WF_AUTOCANCEL,
		2306	signal => $signal,
		2307	prio => 0,
		2308	cb => sub {
		2309	cf::cleanup "SIG$signal";
		2310	},
		2311	);
		2312	}
		2313	}
		2314
		2315	sub emergency_save() {
		2316	my $freeze_guard = cf::freeze_mainloop;
		2317
		2318	warn "enter emergency perl save\n";
		2319
		2320	cf::sync_job {
		2321	# use a peculiar iteration method to avoid tripping on perl
		2322	# refcount bugs in for. also avoids problems with players
		2323	# and maps saved/destroyed asynchronously.
		2324	warn "begin emergency player save\n";
		2325	for my $login (keys %cf::PLAYER) {
		2326	my $pl = $cf::PLAYER{$login} or next;
		2327	$pl->valid or next;
		2328	$pl->save;
		2329	}
		2330	warn "end emergency player save\n";
		2331
		2332	warn "begin emergency map save\n";
		2333	for my $path (keys %cf::MAP) {
		2334	my $map = $cf::MAP{$path} or next;
		2335	$map->valid or next;
		2336	$map->save;
		2337	}
		2338	warn "end emergency map save\n";
		2339	};
		2340
		2341	warn "leave emergency perl save\n";
		2342	}
1840		2343
1841	sub reload() {	2344	sub reload() {
1842	# can/must only be called in main	2345	# can/must only be called in main
1843	if ($Coro::current != $Coro::main) {	2346	if ($Coro::current != $Coro::main) {
1844	warn "can only reload from main coroutine\n";	2347	warn "can only reload from main coroutine";
1845	return;	2348	return;
1846	}	2349	}
1847		2350
1848	warn "reloading...";	2351	warn "reloading...";
1849		2352
1850	local $FREEZE = 1;	2353	warn "cancelling server ticker";
		2354	$TICK_WATCHER->cancel;
		2355
1851	cf::emergency_save;	2356	cf::emergency_save;
1852		2357
1853	eval {	2358	eval {
1854	# if anything goes wrong in here, we should simply crash as we already saved	2359	# if anything goes wrong in here, we should simply crash as we already saved
1855		2360
1856	# cancel all watchers	2361	warn "syncing database to disk";
		2362	cf::db_sync;
		2363
		2364	warn "cancelling all WF_AUTOCANCEL watchers";
1857	for (Event::all_watchers) {	2365	for (Event::all_watchers) {
1858	$_->cancel if $_->data & WF_AUTOCANCEL;	2366	$_->cancel if $_->data & WF_AUTOCANCEL;
1859	}	2367	}
1860		2368
		2369	warn "flushing outstanding aio requests";
		2370	for (;;) {
		2371	IO::AIO::flush;
		2372	Coro::cede;
		2373	last unless IO::AIO::nreqs;
		2374	warn "iterate...";
		2375	}
		2376
1861	# cancel all extension coros	2377	warn "cancelling all extension coros";
1862	$_->cancel for values %EXT_CORO;	2378	$_->cancel for values %EXT_CORO;
1863	%EXT_CORO = ();	2379	%EXT_CORO = ();
1864		2380
1865	# unload all extensions	2381	warn "removing commands";
1866	for (@exts) {	2382	%COMMAND = ();
		2383
		2384	warn "removing ext commands";
		2385	%EXTCMD = ();
		2386
		2387	warn "unloading/nuking all extensions";
		2388	for my $pkg (@EXTS) {
1867	warn "unloading <$_>";	2389	warn "... unloading $pkg";
1868	unload_extension $_;	2390
		2391	if (my $cb = $pkg->can ("unload")) {
		2392	eval {
		2393	$cb->($pkg);
		2394	1
		2395	} or warn "$pkg unloaded, but with errors: $@";
1869	}	2396	}
1870		2397
		2398	warn "... nuking $pkg";
		2399	Symbol::delete_package $pkg;
		2400	}
		2401
1871	# unload all modules loaded from $LIBDIR	2402	warn "unloading all perl modules loaded from $LIBDIR";
1872	while (my ($k, $v) = each %INC) {	2403	while (my ($k, $v) = each %INC) {
1873	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2404	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1874		2405
1875	warn "removing <$k>";	2406	warn "... unloading $k";
1876	delete $INC{$k};	2407	delete $INC{$k};
1877		2408
1878	$k =~ s/\.pm$//;	2409	$k =~ s/\.pm$//;
1879	$k =~ s/\//::/g;	2410	$k =~ s/\//::/g;
1880		2411
…		…
1883	}	2414	}
1884		2415
1885	Symbol::delete_package $k;	2416	Symbol::delete_package $k;
1886	}	2417	}
1887		2418
1888	# sync database to disk
1889	cf::db_sync;
1890	IO::AIO::flush;
1891
1892	# get rid of safe::, as good as possible	2419	warn "getting rid of safe::, as good as possible";
1893	Symbol::delete_package "safe::$_"	2420	Symbol::delete_package "safe::$_"
1894	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2421	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1895		2422
1896	# remove register_script_function callbacks
1897	# TODO
1898
1899	# unload cf.pm "a bit"	2423	warn "unloading cf.pm \"a bit\"";
1900	delete $INC{"cf.pm"};	2424	delete $INC{"cf.pm"};
1901		2425
1902	# don't, removes xs symbols, too,	2426	# don't, removes xs symbols, too,
1903	# and global variables created in xs	2427	# and global variables created in xs
1904	#Symbol::delete_package __PACKAGE__;	2428	#Symbol::delete_package __PACKAGE__;
1905		2429
1906	# reload cf.pm	2430	warn "unload completed, starting to reload now";
		2431
1907	warn "reloading cf.pm";	2432	warn "reloading cf.pm";
1908	require cf;	2433	require cf;
1909	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2434	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1910		2435
1911	# load config and database again	2436	warn "loading config and database again";
1912	cf::cfg_load;	2437	cf::cfg_load;
1913	cf::db_load;	2438	cf::db_load;
1914		2439
1915	# load extensions
1916	warn "load extensions";	2440	warn "loading extensions";
1917	cf::load_extensions;	2441	cf::load_extensions;
1918		2442
1919	# reattach attachments to objects	2443	warn "reattaching attachments to objects/players";
1920	warn "reattach";
1921	_global_reattach;	2444	_global_reattach;
		2445	warn "reattaching attachments to maps";
		2446	reattach $_ for values %MAP;
		2447
		2448	warn "restarting server ticker";
		2449
		2450	$TICK_WATCHER->start;
1922	};	2451	};
1923		2452
1924	if ($@) {	2453	if ($@) {
1925	warn $@;	2454	warn $@;
1926	warn "error while reloading, exiting.";	2455	warn "error while reloading, exiting.";
1927	exit 1;	2456	exit 1;
1928	}	2457	}
1929		2458
1930	warn "reloaded successfully";	2459	warn "reloaded";
1931	};	2460	};
1932		2461
1933	#############################################################################	2462	our $RELOAD_WATCHER; # used only during reload
1934
1935	unless ($LINK_MAP) {
1936	$LINK_MAP = cf::map::new;
1937
1938	$LINK_MAP->width (41);
1939	$LINK_MAP->height (41);
1940	$LINK_MAP->alloc;
1941	$LINK_MAP->path ("{link}");
1942	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1944
1945	# dirty hack because... archetypes are not yet loaded
1946	Event->timer (
1947	after => 2,
1948	cb => sub {
1949	$_[0]->w->cancel;
1950
1951	# provide some exits "home"
1952	my $exit = cf::object::new "exit";
1953
1954	$exit->slaying ($EMERGENCY_POSITION->[0]);
1955	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1956	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1957
1958	$LINK_MAP->insert ($exit->clone, 19, 19);
1959	$LINK_MAP->insert ($exit->clone, 19, 20);
1960	$LINK_MAP->insert ($exit->clone, 19, 21);
1961	$LINK_MAP->insert ($exit->clone, 20, 19);
1962	$LINK_MAP->insert ($exit->clone, 20, 21);
1963	$LINK_MAP->insert ($exit->clone, 21, 19);
1964	$LINK_MAP->insert ($exit->clone, 21, 20);
1965	$LINK_MAP->insert ($exit->clone, 21, 21);
1966
1967	$exit->destroy;
1968	});
1969
1970	$LINK_MAP->{deny_save} = 1;
1971	$LINK_MAP->{deny_reset} = 1;
1972
1973	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1974	}
1975
1976	register "<global>", __PACKAGE__;
1977		2463
1978	register_command "reload" => sub {	2464	register_command "reload" => sub {
1979	my ($who, $arg) = @_;	2465	my ($who, $arg) = @_;
1980		2466
1981	if ($who->flag (FLAG_WIZ)) {	2467	if ($who->flag (FLAG_WIZ)) {
1982	$who->message ("start of reload.");	2468	$who->message ("reloading server.");
		2469
		2470	# doing reload synchronously and two reloads happen back-to-back,
		2471	# coro crashes during coro_state_free->destroy here.
		2472
		2473	$RELOAD_WATCHER ||= Event->timer (
		2474	reentrant => 0,
		2475	after => 0,
		2476	data => WF_AUTOCANCEL,
		2477	cb => sub {
1983	reload;	2478	reload;
1984	$who->message ("end of reload.");	2479	undef $RELOAD_WATCHER;
		2480	},
		2481	);
1985	}	2482	}
1986	};	2483	};
1987		2484
1988	unshift @INC, $LIBDIR;	2485	unshift @INC, $LIBDIR;
		2486
		2487	my $bug_warning = 0;
1989		2488
1990	$TICK_WATCHER = Event->timer (	2489	$TICK_WATCHER = Event->timer (
1991	reentrant => 0,	2490	reentrant => 0,
		2491	parked => 1,
1992	prio => 0,	2492	prio => 0,
1993	at => $NEXT_TICK || $TICK,	2493	at => $NEXT_TICK || $TICK,
1994	data => WF_AUTOCANCEL,	2494	data => WF_AUTOCANCEL,
1995	cb => sub {	2495	cb => sub {
1996	unless ($FREEZE) {	2496	if ($Coro::current != $Coro::main) {
		2497	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2498	unless ++$bug_warning > 10;
		2499	return;
		2500	}
		2501
		2502	$NOW = Event::time;
		2503
1997	cf::server_tick; # one server iteration	2504	cf::server_tick; # one server iteration
1998	$RUNTIME += $TICK;	2505	$RUNTIME += $TICK;
1999	}
2000
2001	$NEXT_TICK += $TICK;	2506	$NEXT_TICK += $TICK;
		2507
		2508	$WAIT_FOR_TICK->broadcast;
		2509	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2510
		2511	Event::sweep;
		2512	Coro::cede_notself;
		2513
		2514	# my $AFTER = Event::time;
		2515	# warn $AFTER - $NOW;#d#
2002		2516
2003	# if we are delayed by four ticks or more, skip them all	2517	# if we are delayed by four ticks or more, skip them all
2004	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2518	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2005		2519
2006	$TICK_WATCHER->at ($NEXT_TICK);	2520	$TICK_WATCHER->at ($NEXT_TICK);
2007	$TICK_WATCHER->start;	2521	$TICK_WATCHER->start;
2008	},	2522	},
2009	);	2523	);
2010		2524
2011	IO::AIO::max_poll_time $TICK * 0.2;	2525	IO::AIO::max_poll_time $TICK * 0.1;
2012		2526
2013	Event->io (	2527	undef $Coro::AIO::WATCHER;
		2528	$AIO_POLL_WATCHER = Event->io (
		2529	reentrant => 0,
2014	fd => IO::AIO::poll_fileno,	2530	fd => IO::AIO::poll_fileno,
2015	poll => 'r',	2531	poll => 'r',
2016	prio => 5,	2532	prio => 6,
2017	data => WF_AUTOCANCEL,	2533	data => WF_AUTOCANCEL,
2018	cb => \&IO::AIO::poll_cb,	2534	cb => \&IO::AIO::poll_cb,
2019	);	2535	);
2020		2536
2021	Event->timer (	2537	$WRITE_RUNTIME_WATCHER = Event->timer (
		2538	reentrant => 0,
2022	data => WF_AUTOCANCEL,	2539	data => WF_AUTOCANCEL,
2023	after => 0,	2540	after => 1,
2024	interval => 10,	2541	interval => 10,
2025	cb => sub {	2542	prio => 6, # keep it lowest so it acts like a watchdog
2026	(Coro::unblock_sub {	2543	cb => Coro::unblock_sub {
2027	write_runtime	2544	write_runtime
2028	or warn "ERROR: unable to write runtime file: $!";	2545	or warn "ERROR: unable to write runtime file: $!";
2029	})->();
2030	},	2546	},
2031	);	2547	);
2032		2548
		2549	END { cf::emergency_save }
		2550
2033	1	2551	1
2034		2552

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