[ViewVC] Diff of: cvs/cf.schmorp.de/server/lib/cf.pm

Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC vs.
Revision 1.168 by root, Sun Jan 14 00:37:14 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 3.3 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use Data::Dumper;
20	use Digest::MD5;	21	use Digest::MD5;
21	use Fcntl;	22	use Fcntl;
22	use IO::AIO 2.31 ();	23	use IO::AIO 2.32 ();
23	use YAML::Syck ();	24	use YAML::Syck ();
24	use Time::HiRes;	25	use Time::HiRes;
25		26
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
27		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		30
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
30		33
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		35
35	our %COMMAND = ();	36	our %COMMAND = ();
36	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
38		43
39	our @EVENT;	44	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
41		46
42	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
44	our $NEXT_TICK;	51	our $NEXT_TICK;
45	our $NOW;	52	our $NOW;
46		53
47	our %CFG;	54	our %CFG;
48		55
49	our $UPTIME; $UPTIME \|\|= time;	56	our $UPTIME; $UPTIME \|\|= time;
50	our $RUNTIME;	57	our $RUNTIME;
51		58
		59	our %PLAYER; # all users
52	our %MAP; # all maps	60	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	61	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	62	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	63
		64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK \|\|= new Coro::Signal;
		65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE \|\|= new Coro::Signal;
		66
		67	# used to convert map paths into valid unix filenames by replacing / by ∕
		68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		69
58	binmode STDOUT;	70	binmode STDOUT;
59	binmode STDERR;	71	binmode STDERR;
60		72
61	# read virtual server time, if available	73	# read virtual server time, if available
…		…
69	mkdir cf::localdir . "/" . cf::playerdir;	81	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	82	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	83	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	84	mkdir $RANDOM_MAPS;
73		85
74	# a special map that is always available	86	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		87
77	#############################################################################	88	#############################################################################
78		89
79	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
80		91
…		…
104		115
105	=item %cf::CFG	116	=item %cf::CFG
106		117
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		127
110	=back	128	=back
111		129
112	=cut	130	=cut
113		131
…		…
117	utf8::encode $msg;	135	utf8::encode $msg;
118		136
119	$msg .= "\n"	137	$msg .= "\n"
120	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
121		139
122	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
123	};	141	};
124	}	142	}
125		143
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		163
146	$Event::DIED = sub {	164	$Event::DIED = sub {
147	warn "error in event callback: @_";	165	warn "error in event callback: @_";
148	};	166	};
149		167
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
155		169
156	=over 4	170	=over 4
157		171
		172	=item dumpval $ref
		173
158	=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	}
159		194
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		196
162	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
163		198
…		…
178		213
179	sub to_json($) {	214	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
182	}	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	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
183		282
184	=item cf::sync_job { BLOCK }	283	=item cf::sync_job { BLOCK }
185		284
186	The design of crossfire+ requires that the main coro ($Coro::main) is	285	The design of crossfire+ requires that the main coro ($Coro::main) is
187	always able to handle events or runnable, as crossfire+ is only partly	286	always able to handle events or runnable, as crossfire+ is only partly
…		…
195	=cut	294	=cut
196		295
197	sub sync_job(&) {	296	sub sync_job(&) {
198	my ($job) = @_;	297	my ($job) = @_;
199		298
200	my $busy = 1;
201	my @res;
202
203	# TODO: use suspend/resume instead
204	local $FREEZE = 1;
205
206	my $coro = Coro::async {
207	@res = eval { $job->() };
208	warn $@ if $@;
209	undef $busy;
210	};
211
212	if ($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
		303	# TODO: use suspend/resume instead
		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;
213	$coro->prio (Coro::PRIO_MAX);	314	})->prio (Coro::PRIO_MAX);
		315
214	while ($busy) {	316	while ($busy) {
215	Coro::cede_notself;	317	Coro::cede or Event::one_event;
216	Event::one_event unless Coro::nready;
217	}	318	}
		319
		320	wantarray ? @res : $res[0]
218	} else {	321	} else {
219	$coro->join;	322	# we are in another coroutine, how wonderful, everything just works
		323
		324	$job->()
220	}	325	}
221
222	wantarray ? @res : $res[0]
223	}	326	}
224		327
225	=item $coro = cf::coro { BLOCK }	328	=item $coro = cf::async_ext { BLOCK }
226		329
227	Creates and returns a new coro. This coro is automcatially being canceled	330	Like async, but this coro is automatically being canceled when the
228	when the extension calling this is being unloaded.	331	extension calling this is being unloaded.
229		332
230	=cut	333	=cut
231		334
232	sub coro(&) {	335	sub async_ext(&) {
233	my $cb = shift;	336	my $cb = shift;
234		337
235	my $coro; $coro = async {	338	my $coro = &Coro::async ($cb);
236	eval {
237	$cb->();
238	};
239	warn $@ if $@;
240	};
241		339
242	$coro->on_destroy (sub {	340	$coro->on_destroy (sub {
243	delete $EXT_CORO{$coro+0};	341	delete $EXT_CORO{$coro+0};
244	});	342	});
245	$EXT_CORO{$coro+0} = $coro;	343	$EXT_CORO{$coro+0} = $coro;
…		…
251	my $runtime = cf::localdir . "/runtime";	349	my $runtime = cf::localdir . "/runtime";
252		350
253	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644	351	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
254	or return;	352	or return;
255		353
256	my $value = $cf::RUNTIME;	354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
257	(aio_write $fh, 0, (length $value), $value, 0) <= 0	355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
258	and return;	356	and return;
259		357
260	aio_fsync $fh	358	aio_fsync $fh
261	and return;	359	and return;
…		…
270	}	368	}
271		369
272	=back	370	=back
273		371
274	=cut	372	=cut
275
276	#############################################################################
277
278	package cf::path;
279
280	sub new {
281	my ($class, $path, $base) = @_;
282
283	my $self = bless { }, $class;
284
285	if ($path =~ s{^\?random/}{}) {
286	$self->{random} = cf::from_json $path;
287	} else {
288	if ($path =~ s{^~([^/]+)?}{}) {
289	$self->{user_rel} = 1;
290
291	if (defined $1) {
292	$self->{user} = $1;
293	} elsif ($base =~ m{^~([^/]+)/}) {
294	$self->{user} = $1;
295	} else {
296	warn "cannot resolve user-relative path without user <$path,$base>\n";
297	}
298	} elsif ($path =~ /^\//) {
299	# already absolute
300	} else {
301	$base =~ s{[^/]+/?$}{};
302	return $class->new ("$base/$path");
303	}
304
305	for ($path) {
306	redo if s{/\.?/}{/};
307	redo if s{/[^/]+/\.\./}{/};
308	}
309	}
310
311	$self->{path} = $path;
312
313	$self
314	}
315
316	# the name / primary key / in-game path
317	sub as_string {
318	my ($self) = @_;
319
320	$self->{user_rel} ? "~$self->{user}$self->{path}"
321	: $self->{random} ? "?random/$self->{path}"
322	: $self->{path}
323	}
324
325	# the displayed name, this is a one way mapping
326	sub visible_name {
327	my ($self) = @_;
328
329	$self->{random} ? "?random/$self->{random}{origin_map}+$self->{random}{origin_x}+$self->{random}{origin_y}/$self->{random}{dungeon_level}"
330	: $self->as_string
331	}
332
333	# escape the /'s in the path
334	sub _escaped_path {
335	# ∕ is U+2215
336	(my $path = $_[0]{path}) =~ s/\//∕/g;
337	$path
338	}
339
340	# the original (read-only) location
341	sub load_path {
342	my ($self) = @_;
343
344	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
345	}
346
347	# the temporary/swap location
348	sub save_path {
349	my ($self) = @_;
350
351	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
352	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, Digest::MD5::md5_hex $self->{path}
353	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
354	}
355
356	# the unique path, might be eq to save_path
357	sub uniq_path {
358	my ($self) = @_;
359
360	$self->{user_rel} \|\| $self->{random}
361	? undef
362	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
363	}
364
365	# return random map parameters, or undef
366	sub random_map_params {
367	my ($self) = @_;
368
369	$self->{random}
370	}
371
372	# this is somewhat ugly, but style maps do need special treatment
373	sub is_style_map {
374	$_[0]{path} =~ m{^/styles/}
375	}
376
377	package cf;
378		373
379	#############################################################################	374	#############################################################################
380		375
381	=head2 ATTACHABLE OBJECTS	376	=head2 ATTACHABLE OBJECTS
382		377
…		…
790	or return;	785	or return;
791		786
792	unless (aio_stat "$filename.pst") {	787	unless (aio_stat "$filename.pst") {
793	(aio_load "$filename.pst", $av) >= 0	788	(aio_load "$filename.pst", $av) >= 0
794	or return;	789	or return;
795	$av = eval { (Storable::thaw <$av>)->{objs} };	790	$av = eval { (Storable::thaw $av)->{objs} };
796	}	791	}
797		792
		793	warn sprintf "loading %s (%d)\n",
		794	$filename, length $data, scalar @{$av \|\| []};#d#
798	return ($data, $av);	795	return ($data, $av);
799	}	796	}
800		797
801	#############################################################################	798	#############################################################################
802	# command handling &c	799	# command handling &c
…		…
827	=cut	824	=cut
828		825
829	sub register_extcmd {	826	sub register_extcmd {
830	my ($name, $cb) = @_;	827	my ($name, $cb) = @_;
831		828
832	my $caller = caller;
833	#warn "registering extcmd '$name' to '$caller'";
834
835	$EXTCMD{$name} = [$cb, $caller];	829	$EXTCMD{$name} = $cb;
836	}	830	}
837		831
838	cf::player->attach (	832	cf::player->attach (
839	on_command => sub {	833	on_command => sub {
840	my ($pl, $name, $params) = @_;	834	my ($pl, $name, $params) = @_;
…		…
853		847
854	my $msg = eval { from_json $buf };	848	my $msg = eval { from_json $buf };
855		849
856	if (ref $msg) {	850	if (ref $msg) {
857	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	851	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
858	if (my %reply = $cb->[0]->($pl, $msg)) {	852	if (my %reply = $cb->($pl, $msg)) {
859	$pl->ext_reply ($msg->{msgid}, %reply);	853	$pl->ext_reply ($msg->{msgid}, %reply);
860	}	854	}
861	}	855	}
862	} else {	856	} else {
863	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	857	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
865		859
866	cf::override;	860	cf::override;
867	},	861	},
868	);	862	);
869		863
870	sub register {
871	my ($base, $pkg) = @_;
872
873	#TODO
874	}
875
876	sub load_extension {	864	sub load_extension {
877	my ($path) = @_;	865	my ($path) = @_;
878		866
879	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	867	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
880	my $base = $1;	868	my $base = $1;
881	my $pkg = $1;	869	my $pkg = $1;
882	$pkg =~ s/[^[:word:]]/_/g;	870	$pkg =~ s/[^[:word:]]/_/g;
883	$pkg = "ext::$pkg";	871	$pkg = "ext::$pkg";
884		872
885	warn "loading '$path' into '$pkg'\n";	873	warn "... loading '$path' into '$pkg'\n";
886		874
887	open my $fh, "<:utf8", $path	875	open my $fh, "<:utf8", $path
888	or die "$path: $!";	876	or die "$path: $!";
889		877
890	my $source =	878	my $source =
891	"package $pkg; use strict; use utf8;\n"	879	"package $pkg; use strict; use utf8;\n"
892	. "#line 1 \"$path\"\n{\n"	880	. "#line 1 \"$path\"\n{\n"
893	. (do { local $/; <$fh> })	881	. (do { local $/; <$fh> })
894	. "\n};\n1";	882	. "\n};\n1";
895		883
896	eval $source	884	unless (eval $source) {
897	or die $@ ? "$path: $@\n"	885	my $msg = $@ ? "$path: $@\n"
898	: "extension disabled.\n";	886	: "extension disabled.\n";
899		887	if ($source =~ /^#!.perl.#.*MANDATORY/m) { # ugly match
900	push @exts, $pkg;	888	warn $@;
901	$ext_pkg{$base} = $pkg;	889	warn "mandatory extension failed to load, exiting.\n";
902		890	exit 1;
903	# no strict 'refs';	891	}
904	# @{"$pkg\::ISA"} = ext::;	892	die $@;
905
906	register $base, $pkg;
907	}
908
909	sub unload_extension {
910	my ($pkg) = @_;
911
912	warn "removing extension $pkg\n";
913
914	# remove hooks
915	#TODO
916	# for my $idx (0 .. $#PLUGIN_EVENT) {
917	# delete $hook[$idx]{$pkg};
918	# }	893	}
919		894
920	# remove commands	895	push @EXTS, $pkg;
921	for my $name (keys %COMMAND) {
922	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
923
924	if (@cb) {
925	$COMMAND{$name} = \@cb;
926	} else {
927	delete $COMMAND{$name};
928	}
929	}
930
931	# remove extcmds
932	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
933	delete $EXTCMD{$name};
934	}
935
936	if (my $cb = $pkg->can ("unload")) {
937	eval {
938	$cb->($pkg);
939	1
940	} or warn "$pkg unloaded, but with errors: $@";
941	}
942
943	Symbol::delete_package $pkg;
944	}	896	}
945		897
946	sub load_extensions {	898	sub load_extensions {
947	for my $ext (<$LIBDIR/*.ext>) {	899	for my $ext (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	900	next unless -r $ext;
…		…
952	} or warn "$ext not loaded: $@";	904	} or warn "$ext not loaded: $@";
953	}	905	}
954	}	906	}
955		907
956	#############################################################################	908	#############################################################################
957	# load/save/clean perl data associated with a map
958		909
959	*cf::mapsupport::on_clean = sub {	910	=head2 CORE EXTENSIONS
		911
		912	Functions and methods that extend core crossfire objects.
		913
		914	=cut
		915
		916	package cf::player;
		917
		918	use Coro::AIO;
		919
		920	=head3 cf::player
		921
		922	=over 4
		923
		924	=item cf::player::find $login
		925
		926	Returns the given player object, loading it if necessary (might block).
		927
		928	=cut
		929
		930	sub playerdir($) {
		931	cf::localdir
		932	. "/"
		933	. cf::playerdir
		934	. "/"
		935	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		936	}
		937
		938	sub path($) {
		939	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		940
		941	(playerdir $login) . "/$login.pl"
		942	}
		943
		944	sub find_active($) {
		945	$cf::PLAYER{$_[0]}
		946	and $cf::PLAYER{$_[0]}->active
		947	and $cf::PLAYER{$_[0]}
		948	}
		949
		950	sub exists($) {
		951	my ($login) = @_;
		952
		953	$cf::PLAYER{$login}
		954	or cf::sync_job { !aio_stat $login }
		955	}
		956
		957	sub find($) {
		958	return $cf::PLAYER{$_[0]} \|\| do {
		959	my $login = $_[0];
		960
		961	my $guard = cf::lock_acquire "user_find:$login";
		962
		963	$cf::PLAYER{$_[0]} \|\| do {
		964	my $pl = load_pl path $login
		965	or return;
		966	$cf::PLAYER{$login} = $pl
		967	}
		968	}
		969	}
		970
		971	sub save($) {
		972	my ($pl) = @_;
		973
		974	return if $pl->{deny_save};
		975
		976	my $path = path $pl;
		977	my $guard = cf::lock_acquire "user_save:$path";
		978
		979	return if $pl->{deny_save};
		980
		981	aio_mkdir playerdir $pl, 0770;
		982	$pl->{last_save} = $cf::RUNTIME;
		983
		984	$pl->save_pl ($path);
		985	Coro::cede;
		986	}
		987
		988	sub new($) {
		989	my ($login) = @_;
		990
		991	my $self = create;
		992
		993	$self->ob->name ($login);
		994	$self->{deny_save} = 1;
		995
		996	$cf::PLAYER{$login} = $self;
		997
		998	$self
		999	}
		1000
		1001	=item $pl->quit_character
		1002
		1003	Nukes the player without looking back. If logged in, the connection will
		1004	be destroyed. May block for a long time.
		1005
		1006	=cut
		1007
		1008	sub quit_character {
		1009	my ($pl) = @_;
		1010
		1011	$pl->{deny_save} = 1;
		1012	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1013
		1014	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1015	$pl->deactivate;
		1016	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1017	$pl->ns->destroy if $pl->ns;
		1018
		1019	my $path = playerdir $pl;
		1020	my $temp = "$path~$cf::RUNTIME~deleting~";
		1021	aio_rename $path, $temp;
		1022	delete $cf::PLAYER{$pl->ob->name};
		1023	$pl->destroy;
		1024	IO::AIO::aio_rmtree $temp;
		1025	}
		1026
		1027	=item cf::player::list_logins
		1028
		1029	Returns am arrayref of all valid playernames in the system, can take a
		1030	while and may block, so not sync_job-capable, ever.
		1031
		1032	=cut
		1033
		1034	sub list_logins {
		1035	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1036	or return [];
		1037
		1038	my @logins;
		1039
		1040	for my $login (@$dirs) {
		1041	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1042	aio_read $fh, 0, 512, my $buf, 0 or next;
		1043	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1044
		1045	utf8::decode $login;
		1046	push @logins, $login;
		1047	}
		1048
		1049	\@logins
		1050	}
		1051
		1052	=item $player->maps
		1053
		1054	Returns an arrayref of map paths that are private for this
		1055	player. May block.
		1056
		1057	=cut
		1058
		1059	sub maps($) {
		1060	my ($pl) = @_;
		1061
		1062	my $files = aio_readdir playerdir $pl
		1063	or return;
		1064
		1065	my @paths;
		1066
		1067	for (@$files) {
		1068	utf8::decode $_;
		1069	next if /\.(?:pl\|pst)$/;
		1070	next unless /^$PATH_SEP/o;
		1071
		1072	s/\.map$//;
		1073	push @paths, "~" . $pl->ob->name . "/" . $_;
		1074	}
		1075
		1076	\@paths
		1077	}
		1078
		1079	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1080
		1081	Sends an ext reply to the player.
		1082
		1083	=cut
		1084
		1085	sub ext_reply($$$%) {
		1086	my ($self, $id, %msg) = @_;
		1087
		1088	$msg{msgid} = $id;
		1089
		1090	$self->send ("ext " . cf::to_json \%msg);
		1091	}
		1092
		1093	package cf;
		1094
		1095	=back
		1096
		1097
		1098	=head3 cf::map
		1099
		1100	=over 4
		1101
		1102	=cut
		1103
		1104	package cf::map;
		1105
		1106	use Fcntl;
		1107	use Coro::AIO;
		1108
		1109	use overload
		1110	'""' => \&as_string;
		1111
		1112	our $MAX_RESET = 3600;
		1113	our $DEFAULT_RESET = 3000;
		1114
		1115	sub generate_random_map {
		1116	my ($self, $rmp) = @_;
		1117
		1118	# mit "rum" bekleckern, nicht
		1119	$self->_create_random_map (
		1120	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1121	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1122	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1123	$rmp->{exit_on_final_map},
		1124	$rmp->{xsize}, $rmp->{ysize},
		1125	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1126	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1127	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1128	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1129	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1130	(cf::region::find $rmp->{region}), $rmp->{custom}
		1131	)
		1132	}
		1133
		1134	sub register {
		1135	my (undef, $regex) = @_;
		1136	my $pkg = caller;
		1137
		1138	no strict;
		1139	push @{"$pkg\::ISA"}, __PACKAGE__;
		1140
		1141	$EXT_MAP{$pkg} = qr<$regex>;
		1142	}
		1143
		1144	# also paths starting with '/'
		1145	$EXT_MAP{"cf::map"} = qr{^(?=/)};
		1146
		1147	sub normalise {
		1148	my ($path, $base) = @_;
		1149
		1150	# map plan:
		1151	#
		1152	# /! non-realised random map exit (special hack!)
		1153	# {... are special paths that are not being touched
		1154	# ?xxx/... are special absolute paths
		1155	# ?random/... random maps
		1156	# /... normal maps
		1157	# ~user/... per-player map of a specific user
		1158
		1159	$path =~ s/$PATH_SEP/\//go;
		1160
		1161	# treat it as relative path if it starts with
		1162	# something that looks reasonable
		1163	if ($path =~ m{^(?:\./\|\.\./\|\w)}) {
		1164	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1165
		1166	$base =~ s{[^/]+/?$}{};
		1167	$path = "$base/$path";
		1168	}
		1169
		1170	for ($path) {
		1171	redo if s{//}{/};
		1172	redo if s{/\.?/}{/};
		1173	redo if s{/[^/]+/\.\./}{/};
		1174	}
		1175
		1176	$path
		1177	}
		1178
		1179	sub new_from_path {
		1180	my (undef, $path, $base) = @_;
		1181
		1182	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1183
		1184	$path = normalise $path, $base;
		1185
		1186	for my $pkg (keys %EXT_MAP) {
		1187	if ($path =~ $EXT_MAP{$pkg}) {
		1188	my $self = bless cf::map::new, $pkg;
		1189	$self->{path} = $path; $self->path ($path);
		1190	$self->init; # pass $1 etc.
		1191	return $self;
		1192	}
		1193	}
		1194
		1195	Carp::carp "unable to resolve path '$path'.";
		1196	()
		1197	}
		1198
		1199	sub init {
		1200	my ($self) = @_;
		1201
		1202	$self
		1203	}
		1204
		1205	sub as_string {
		1206	my ($self) = @_;
		1207
		1208	"$self->{path}"
		1209	}
		1210
		1211	# the displayed name, this is a one way mapping
		1212	sub visible_name {
		1213	&as_string
		1214	}
		1215
		1216	# the original (read-only) location
		1217	sub load_path {
		1218	my ($self) = @_;
		1219
		1220	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1221	}
		1222
		1223	# the temporary/swap location
		1224	sub save_path {
		1225	my ($self) = @_;
		1226
		1227	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1228	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1229	}
		1230
		1231	# the unique path, undef == no special unique path
		1232	sub uniq_path {
		1233	my ($self) = @_;
		1234
		1235	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1236	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1237	}
		1238
		1239	# and all this just because we cannot iterate over
		1240	# all maps in C++...
		1241	sub change_all_map_light {
		1242	my ($change) = @_;
		1243
		1244	$_->change_map_light ($change)
		1245	for grep $_->outdoor, values %cf::MAP;
		1246	}
		1247
		1248	sub unlink_save {
		1249	my ($self) = @_;
		1250
		1251	utf8::encode (my $save = $self->save_path);
		1252	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
		1253	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
		1254	}
		1255
		1256	sub load_header_from($) {
		1257	my ($self, $path) = @_;
		1258
		1259	utf8::encode $path;
		1260	aio_open $path, O_RDONLY, 0
		1261	or return;
		1262
		1263	$self->_load_header ($path)
		1264	or return;
		1265
		1266	$self->{load_path} = $path;
		1267
		1268	1
		1269	}
		1270
		1271	sub load_orig {
		1272	my ($self) = @_;
		1273
		1274	$self->load_header_from ($self->load_path)
		1275	}
		1276
		1277	sub load_temp {
		1278	my ($self) = @_;
		1279
		1280	$self->load_header_from ($self->save_path)
		1281	}
		1282
		1283	sub load_header {
		1284	my ($self) = @_;
		1285
		1286	if ($self->load_temp) {
		1287	$self->last_access ((delete $self->{last_access})
		1288	\|\| $cf::RUNTIME); #d#
		1289	# safety
		1290	$self->{instantiate_time} = $cf::RUNTIME
		1291	if $self->{instantiate_time} > $cf::RUNTIME;
		1292	} else {
		1293	$self->load_orig
		1294	or return;
		1295
		1296	$self->{load_original} = 1;
		1297	$self->{instantiate_time} = $cf::RUNTIME;
		1298	$self->last_access ($cf::RUNTIME);
		1299	$self->instantiate;
		1300	}
		1301
		1302	1
		1303	}
		1304
		1305	sub find;
		1306	sub find {
		1307	my ($path, $origin) = @_;
		1308
		1309	$path = normalise $path, $origin && $origin->path;
		1310
		1311	cf::lock_wait "map_find:$path";
		1312
		1313	$cf::MAP{$path} \|\| do {
		1314	my $guard = cf::lock_acquire "map_find:$path";
		1315	my $map = new_from_path cf::map $path
		1316	or return;
		1317
		1318	$map->{last_save} = $cf::RUNTIME;
		1319
		1320	$map->load_header
		1321	or return;
		1322
		1323	if ($map->should_reset) {
		1324	$map->reset;
		1325	undef $guard;
		1326	$map = find $path
		1327	or return;
		1328	}
		1329
		1330	$cf::MAP{$path} = $map
		1331	}
		1332	}
		1333
		1334	sub load {
		1335	my ($self) = @_;
		1336
		1337	my $path = $self->{path};
		1338	my $guard = cf::lock_acquire "map_load:$path";
		1339
		1340	return if $self->in_memory != cf::MAP_SWAPPED;
		1341
		1342	$self->in_memory (cf::MAP_LOADING);
		1343
		1344	$self->alloc;
		1345	$self->_load_objects ($self->{load_path}, 1)
		1346	or return;
		1347
		1348	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1349	if delete $self->{load_original};
		1350
		1351	if (my $uniq = $self->uniq_path) {
		1352	utf8::encode $uniq;
		1353	if (aio_open $uniq, O_RDONLY, 0) {
		1354	$self->clear_unique_items;
		1355	$self->_load_objects ($uniq, 0);
		1356	}
		1357	}
		1358
		1359	Coro::cede;
		1360
		1361	# now do the right thing for maps
		1362	$self->link_multipart_objects;
		1363
		1364	unless ($self->{deny_activate}) {
		1365	$self->decay_objects;
		1366	$self->fix_auto_apply;
		1367	$self->update_buttons;
		1368	Coro::cede;
		1369	$self->set_darkness_map;
		1370	$self->difficulty ($self->estimate_difficulty)
		1371	unless $self->difficulty;
		1372	Coro::cede;
		1373	$self->activate;
		1374	}
		1375
		1376	$self->in_memory (cf::MAP_IN_MEMORY);
		1377	}
		1378
		1379	sub customise_for {
		1380	my ($self, $ob) = @_;
		1381
		1382	return find "~" . $ob->name . "/" . $self->{path}
		1383	if $self->per_player;
		1384
		1385	$self
		1386	}
		1387
		1388	# find and load all maps in the 3x3 area around a map
		1389	sub load_diag {
960	my ($map) = @_;	1390	my ($map) = @_;
961		1391
962	my $path = $map->tmpname;	1392	my @diag; # diagonal neighbours
963	defined $path or return;
964		1393
965	unlink "$path.pst";	1394	for (0 .. 3) {
		1395	my $neigh = $map->tile_path ($_)
		1396	or next;
		1397	$neigh = find $neigh, $map
		1398	or next;
		1399	$neigh->load;
		1400
		1401	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1402	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1403	}
		1404
		1405	for (@diag) {
		1406	my $neigh = find @$_
		1407	or next;
		1408	$neigh->load;
		1409	}
		1410	}
		1411
		1412	sub find_sync {
		1413	my ($path, $origin) = @_;
		1414
		1415	cf::sync_job { find $path, $origin }
		1416	}
		1417
		1418	sub do_load_sync {
		1419	my ($map) = @_;
		1420
		1421	cf::sync_job { $map->load };
		1422	}
		1423
		1424	our %MAP_PREFETCH;
		1425	our $MAP_PREFETCHER = Coro::async {
		1426	while () {
		1427	for my $path (keys %MAP_PREFETCH) {
		1428	my $map = find $path
		1429	or next;
		1430	$map->load;
		1431
		1432	delete $MAP_PREFETCH{$path};
		1433	}
		1434	Coro::schedule;
		1435	}
966	};	1436	};
967		1437
968	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1438	sub find_async {
		1439	my ($path, $origin) = @_;
969		1440
970	#############################################################################	1441	$path = normalise $path, $origin && $origin->{path};
971	# load/save perl data associated with player->ob objects
972		1442
973	sub all_objects(@) {	1443	if (my $map = $cf::MAP{$path}) {
974	@_, map all_objects ($_->inv), @_	1444	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
975	}
976
977	# TODO: compatibility cruft, remove when no longer needed
978	cf::player->attach (
979	on_load => sub {
980	my ($pl, $path) = @_;
981
982	for my $o (all_objects $pl->ob) {
983	if (my $value = $o->get_ob_key_value ("_perl_data")) {
984	$o->set_ob_key_value ("_perl_data");
985
986	%$o = %{ Storable::thaw pack "H*", $value };
987	}
988	}
989	},	1445	}
990	);
991		1446
992	#############################################################################	1447	$MAP_PREFETCH{$path} = 0;
		1448	$MAP_PREFETCHER->ready;
993		1449
994	=head2 CORE EXTENSIONS	1450	()
		1451	}
995		1452
996	Functions and methods that extend core crossfire objects.	1453	sub save {
		1454	my ($self) = @_;
997		1455
998	=head3 cf::player	1456	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1457
		1458	$self->{last_save} = $cf::RUNTIME;
		1459
		1460	return unless $self->dirty;
		1461
		1462	my $save = $self->save_path; utf8::encode $save;
		1463	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1464
		1465	$self->{load_path} = $save;
		1466
		1467	return if $self->{deny_save};
		1468
		1469	local $self->{last_access} = $self->last_access;#d#
		1470
		1471	cf::async {
		1472	$_->contr->save for $self->players;
		1473	};
		1474
		1475	if ($uniq) {
		1476	$self->_save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS);
		1477	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1478	} else {
		1479	$self->_save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS \| cf::IO_UNIQUES);
		1480	}
		1481	}
		1482
		1483	sub swap_out {
		1484	my ($self) = @_;
		1485
		1486	# save first because save cedes
		1487	$self->save;
		1488
		1489	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1490
		1491	return if $self->players;
		1492	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1493	return if $self->{deny_save};
		1494
		1495	$self->clear;
		1496	$self->in_memory (cf::MAP_SWAPPED);
		1497	}
		1498
		1499	sub reset_at {
		1500	my ($self) = @_;
		1501
		1502	# TODO: safety, remove and allow resettable per-player maps
		1503	return 1e99 if $self->isa ("ext::map_per_player");
		1504	return 1e99 if $self->{deny_reset};
		1505
		1506	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1507	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
		1508
		1509	$time + $to
		1510	}
		1511
		1512	sub should_reset {
		1513	my ($self) = @_;
		1514
		1515	$self->reset_at <= $cf::RUNTIME
		1516	}
		1517
		1518	sub rename {
		1519	my ($self, $new_path) = @_;
		1520
		1521	normalise $new_path;
		1522
		1523	$self->unlink_save;
		1524
		1525	delete $cf::MAP{$self->path};
		1526	$self->{path} = $new_path; $self->path ($self->{path});
		1527	$cf::MAP{$self->path} = $self;
		1528
		1529	$self->save;
		1530	}
		1531
		1532	sub reset {
		1533	my ($self) = @_;
		1534
		1535	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1536
		1537	return if $self->players;
		1538	return if $self->isa ("ext::map_per_player");#d#
		1539
		1540	warn "resetting map ", $self->path;#d#
		1541
		1542	delete $cf::MAP{$self->path};
		1543
		1544	$self->in_memory (cf::MAP_SWAPPED);
		1545	$self->clear;
		1546
		1547	$_->clear_links_to ($self) for values %cf::MAP;
		1548
		1549	$self->unlink_save;
		1550	$self->destroy;
		1551	}
		1552
		1553	my $nuke_counter = "aaaa";
		1554
		1555	sub nuke {
		1556	my ($self) = @_;
		1557
		1558	$self->{deny_save} = 1;
		1559	$self->reset_timeout (1);
		1560	$self->rename ("{nuke}/" . ($nuke_counter++));
		1561	$self->reset; # polite request, might not happen
		1562	}
		1563
		1564	=item cf::map::unique_maps
		1565
		1566	Returns an arrayref of paths of all shared maps that have
		1567	instantiated unique items. May block.
		1568
		1569	=cut
		1570
		1571	sub unique_maps() {
		1572	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1573	or return;
		1574
		1575	my @paths;
		1576
		1577	for (@$files) {
		1578	utf8::decode $_;
		1579	next if /\.pst$/;
		1580	next unless /^$PATH_SEP/o;
		1581
		1582	s/\.map$//;
		1583	push @paths, $_;
		1584	}
		1585
		1586	\@paths
		1587	}
		1588
		1589	package cf;
		1590
		1591	=back
		1592
		1593	=head3 cf::object
		1594
		1595	=cut
		1596
		1597	package cf::object;
999		1598
1000	=over 4	1599	=over 4
1001		1600
1002	=item cf::player::exists $login	1601	=item $ob->inv_recursive
1003		1602
1004	Returns true when the given account exists.	1603	Returns the inventory of the object _and_ their inventories, recursively.
1005		1604
1006	=cut	1605	=cut
1007		1606
1008	sub cf::player::exists($) {	1607	sub inv_recursive_;
1009	cf::player::find $_[0]	1608	sub inv_recursive_ {
1010	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1609	map { $_, inv_recursive_ $_->inv } @_
1011	}	1610	}
1012		1611
1013	=item $player->ext_reply ($msgid, $msgtype, %msg)	1612	sub inv_recursive {
1014		1613	inv_recursive_ inv $_[0]
1015	Sends an ext reply to the player.
1016
1017	=cut
1018
1019	sub cf::player::ext_reply($$$%) {
1020	my ($self, $id, %msg) = @_;
1021
1022	$msg{msgid} = $id;
1023
1024	$self->send ("ext " . to_json \%msg);
1025	}	1614	}
		1615
		1616	package cf;
1026		1617
1027	=back	1618	=back
1028		1619
1029	=head3 cf::object::player	1620	=head3 cf::object::player
1030		1621
…		…
1068	(ref $cf::CFG{"may_$access"}	1659	(ref $cf::CFG{"may_$access"}
1069	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1660	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1070	: $cf::CFG{"may_$access"})	1661	: $cf::CFG{"may_$access"})
1071	}	1662	}
1072		1663
		1664	=item $player_object->enter_link
		1665
		1666	Freezes the player and moves him/her to a special map (C<{link}>).
		1667
		1668	The player should be reasonably safe there for short amounts of time. You
		1669	I<MUST> call C<leave_link> as soon as possible, though.
		1670
		1671	Will never block.
		1672
		1673	=item $player_object->leave_link ($map, $x, $y)
		1674
		1675	Moves the player out of the special C<{link}> map onto the specified
		1676	map. If the map is not valid (or omitted), the player will be moved back
		1677	to the location he/she was before the call to C<enter_link>, or, if that
		1678	fails, to the emergency map position.
		1679
		1680	Might block.
		1681
		1682	=cut
		1683
		1684	sub link_map {
		1685	unless ($LINK_MAP) {
		1686	$LINK_MAP = cf::map::find "{link}"
		1687	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1688	$LINK_MAP->load;
		1689	}
		1690
		1691	$LINK_MAP
		1692	}
		1693
		1694	sub cf::object::player::enter_link {
		1695	my ($self) = @_;
		1696
		1697	$self->deactivate_recursive;
		1698
		1699	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1700
		1701	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
		1702	if $self->map;
		1703
		1704	$self->enter_map ($LINK_MAP \|\| link_map, 20, 20);
		1705	}
		1706
		1707	sub cf::object::player::leave_link {
		1708	my ($self, $map, $x, $y) = @_;
		1709
		1710	my $link_pos = delete $self->{_link_pos};
		1711
		1712	unless ($map) {
		1713	# restore original map position
		1714	($map, $x, $y) = @{ $link_pos \|\| [] };
		1715	$map = cf::map::find $map;
		1716
		1717	unless ($map) {
		1718	($map, $x, $y) = @$EMERGENCY_POSITION;
		1719	$map = cf::map::find $map
		1720	or die "FATAL: cannot load emergency map\n";
		1721	}
		1722	}
		1723
		1724	($x, $y) = (-1, -1)
		1725	unless (defined $x) && (defined $y);
		1726
		1727	# use -1 or undef as default coordinates, not 0, 0
		1728	($x, $y) = ($map->enter_x, $map->enter_y)
		1729	if $x <=0 && $y <= 0;
		1730
		1731	$map->load;
		1732	$map->load_diag;
		1733
		1734	return unless $self->contr->active;
		1735	$self->activate_recursive;
		1736	$self->enter_map ($map, $x, $y);
		1737	}
		1738
		1739	cf::player->attach (
		1740	on_logout => sub {
		1741	my ($pl) = @_;
		1742
		1743	# abort map switching before logout
		1744	if ($pl->ob->{_link_pos}) {
		1745	cf::sync_job {
		1746	$pl->ob->leave_link
		1747	};
		1748	}
		1749	},
		1750	on_login => sub {
		1751	my ($pl) = @_;
		1752
		1753	# try to abort aborted map switching on player login :)
		1754	# should happen only on crashes
		1755	if ($pl->ob->{_link_pos}) {
		1756	$pl->ob->enter_link;
		1757	(async {
		1758	# we need this sleep as the login has a concurrent enter_exit running
		1759	# and this sleep increases chances of the player not ending up in scorn
		1760	$pl->ob->reply (undef,
		1761	"There was an internal problem at your last logout, "
		1762	. "the server will try to bring you to your intended destination in a second.",
		1763	cf::NDI_RED);
		1764	Coro::Timer::sleep 1;
		1765	$pl->ob->leave_link;
		1766	})->prio (2);
		1767	}
		1768	},
		1769	);
		1770
		1771	=item $player_object->goto ($path, $x, $y)
		1772
		1773	=cut
		1774
		1775	sub cf::object::player::goto {
		1776	my ($self, $path, $x, $y) = @_;
		1777
		1778	$self->enter_link;
		1779
		1780	(async {
		1781	my $map = cf::map::find $path;
		1782	$map = $map->customise_for ($self) if $map;
		1783
		1784	# warn "entering ", $map->path, " at ($x, $y)\n"
		1785	# if $map;
		1786
		1787	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		1788
		1789	$self->leave_link ($map, $x, $y);
		1790	})->prio (1);
		1791	}
		1792
		1793	=item $player_object->enter_exit ($exit_object)
		1794
		1795	=cut
		1796
		1797	sub parse_random_map_params {
		1798	my ($spec) = @_;
		1799
		1800	my $rmp = { # defaults
		1801	xsize => 10,
		1802	ysize => 10,
		1803	};
		1804
		1805	for (split /\n/, $spec) {
		1806	my ($k, $v) = split /\s+/, $_, 2;
		1807
		1808	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1809	}
		1810
		1811	$rmp
		1812	}
		1813
		1814	sub prepare_random_map {
		1815	my ($exit) = @_;
		1816
		1817	# all this does is basically replace the /! path by
		1818	# a new random map path (?random/...) with a seed
		1819	# that depends on the exit object
		1820
		1821	my $rmp = parse_random_map_params $exit->msg;
		1822
		1823	if ($exit->map) {
		1824	$rmp->{region} = $exit->map->region_name;
		1825	$rmp->{origin_map} = $exit->map->path;
		1826	$rmp->{origin_x} = $exit->x;
		1827	$rmp->{origin_y} = $exit->y;
		1828	}
		1829
		1830	$rmp->{random_seed} \|\|= $exit->random_seed;
		1831
		1832	my $data = cf::to_json $rmp;
		1833	my $md5 = Digest::MD5::md5_hex $data;
		1834
		1835	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY \| O_CREAT, 0666) {
		1836	aio_write $fh, 0, (length $data), $data, 0;
		1837
		1838	$exit->slaying ("?random/$md5");
		1839	$exit->msg (undef);
		1840	}
		1841	}
		1842
		1843	sub cf::object::player::enter_exit {
		1844	my ($self, $exit) = @_;
		1845
		1846	return unless $self->type == cf::PLAYER;
		1847
		1848	$self->enter_link;
		1849
		1850	(async {
		1851	$self->deactivate_recursive; # just to be sure
		1852	unless (eval {
		1853	prepare_random_map $exit
		1854	if $exit->slaying eq "/!";
		1855
		1856	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1857	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1858
		1859	1;
		1860	}) {
		1861	$self->message ("Something went wrong deep within the crossfire server. "
		1862	. "I'll try to bring you back to the map you were before. "
		1863	. "Please report this to the dungeon master!",
		1864	cf::NDI_UNIQUE \| cf::NDI_RED);
		1865
		1866	warn "ERROR in enter_exit: $@";
		1867	$self->leave_link;
		1868	}
		1869	})->prio (1);
		1870	}
		1871
1073	=head3 cf::client	1872	=head3 cf::client
1074		1873
1075	=over 4	1874	=over 4
1076		1875
1077	=item $client->send_drawinfo ($text, $flags)	1876	=item $client->send_drawinfo ($text, $flags)
…		…
1120	on_reply => sub {	1919	on_reply => sub {
1121	my ($ns, $msg) = @_;	1920	my ($ns, $msg) = @_;
1122		1921
1123	# this weird shuffling is so that direct followup queries	1922	# this weird shuffling is so that direct followup queries
1124	# get handled first	1923	# get handled first
1125	my $queue = delete $ns->{query_queue};	1924	my $queue = delete $ns->{query_queue}
		1925	or return; # be conservative, not sure how that can happen, but we saw a crash here
1126		1926
1127	(shift @$queue)->[1]->($msg);	1927	(shift @$queue)->[1]->($msg);
1128		1928
1129	push @{ $ns->{query_queue} }, @$queue;	1929	push @{ $ns->{query_queue} }, @$queue;
1130		1930
…		…
1136	}	1936	}
1137	}	1937	}
1138	},	1938	},
1139	);	1939	);
1140		1940
1141	=item $client->coro (\&cb)	1941	=item $client->async (\&cb)
1142		1942
1143	Create a new coroutine, running the specified callback. The coroutine will	1943	Create a new coroutine, running the specified callback. The coroutine will
1144	be automatically cancelled when the client gets destroyed (e.g. on logout,	1944	be automatically cancelled when the client gets destroyed (e.g. on logout,
1145	or loss of connection).	1945	or loss of connection).
1146		1946
1147	=cut	1947	=cut
1148		1948
1149	sub cf::client::coro {	1949	sub cf::client::async {
1150	my ($self, $cb) = @_;	1950	my ($self, $cb) = @_;
1151		1951
1152	my $coro; $coro = async {	1952	my $coro = &Coro::async ($cb);
1153	eval {
1154	$cb->();
1155	};
1156	warn $@ if $@;
1157	};
1158		1953
1159	$coro->on_destroy (sub {	1954	$coro->on_destroy (sub {
1160	delete $self->{_coro}{$coro+0};	1955	delete $self->{_coro}{$coro+0};
1161	});	1956	});
1162		1957
…		…
1334		2129
1335	{	2130	{
1336	my $path = cf::localdir . "/database.pst";	2131	my $path = cf::localdir . "/database.pst";
1337		2132
1338	sub db_load() {	2133	sub db_load() {
1339	warn "loading database $path\n";#d# remove later
1340	$DB = stat $path ? Storable::retrieve $path : { };	2134	$DB = stat $path ? Storable::retrieve $path : { };
1341	}	2135	}
1342		2136
1343	my $pid;	2137	my $pid;
1344		2138
1345	sub db_save() {	2139	sub db_save() {
1346	warn "saving database $path\n";#d# remove later
1347	waitpid $pid, 0 if $pid;	2140	waitpid $pid, 0 if $pid;
1348	if (0 == ($pid = fork)) {	2141	if (0 == ($pid = fork)) {
1349	$DB->{_meta}{version} = 1;	2142	$DB->{_meta}{version} = 1;
1350	Storable::nstore $DB, "$path~";	2143	Storable::nstore $DB, "$path~";
1351	rename "$path~", $path;	2144	rename "$path~", $path;
…		…
1399	open my $fh, "<:utf8", cf::confdir . "/config"	2192	open my $fh, "<:utf8", cf::confdir . "/config"
1400	or return;	2193	or return;
1401		2194
1402	local $/;	2195	local $/;
1403	*CFG = YAML::Syck::Load <$fh>;	2196	*CFG = YAML::Syck::Load <$fh>;
		2197
		2198	$EMERGENCY_POSITION = $CFG{emergency_position} \|\| ["/world/world_105_115", 5, 37];
		2199
		2200	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2201	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2202
		2203	if (exists $CFG{mlockall}) {
		2204	eval {
		2205	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2206	and die "WARNING: m(un)lockall failed: $!\n";
		2207	};
		2208	warn $@ if $@;
		2209	}
1404	}	2210	}
1405		2211
1406	sub main {	2212	sub main {
1407	# we must not ever block the main coroutine	2213	# we must not ever block the main coroutine
1408	local $Coro::idle = sub {	2214	local $Coro::idle = sub {
1409	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2215	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1410	(Coro::unblock_sub {
1411	Event::one_event;	2216	async { Event::one_event };
1412	})->();
1413	};	2217	};
1414		2218
1415	cfg_load;	2219	cfg_load;
1416	db_load;	2220	db_load;
1417	load_extensions;	2221	load_extensions;
1418	Event::loop;	2222	Event::loop;
1419	}	2223	}
1420		2224
1421	#############################################################################	2225	#############################################################################
1422	# initialisation	2226	# initialisation and cleanup
1423		2227
		2228	# install some emergency cleanup handlers
		2229	BEGIN {
		2230	for my $signal (qw(INT HUP TERM)) {
		2231	Event->signal (
		2232	data => WF_AUTOCANCEL,
		2233	signal => $signal,
		2234	cb => sub {
		2235	cf::cleanup "SIG$signal";
		2236	},
		2237	);
		2238	}
		2239	}
		2240
		2241	sub emergency_save() {
		2242	my $freeze_guard = cf::freeze_mainloop;
		2243
		2244	warn "enter emergency perl save\n";
		2245
		2246	cf::sync_job {
		2247	# use a peculiar iteration method to avoid tripping on perl
		2248	# refcount bugs in for. also avoids problems with players
		2249	# and maps saved/destroyed asynchronously.
		2250	warn "begin emergency player save\n";
		2251	for my $login (keys %cf::PLAYER) {
		2252	my $pl = $cf::PLAYER{$login} or next;
		2253	$pl->valid or next;
		2254	$pl->save;
		2255	}
		2256	warn "end emergency player save\n";
		2257
		2258	warn "begin emergency map save\n";
		2259	for my $path (keys %cf::MAP) {
		2260	my $map = $cf::MAP{$path} or next;
		2261	$map->valid or next;
		2262	$map->save;
		2263	}
		2264	warn "end emergency map save\n";
		2265	};
		2266
		2267	warn "leave emergency perl save\n";
		2268	}
		2269
1424	sub perl_reload() {	2270	sub reload() {
1425	# can/must only be called in main	2271	# can/must only be called in main
1426	if ($Coro::current != $Coro::main) {	2272	if ($Coro::current != $Coro::main) {
1427	warn "can only reload from main coroutine\n";	2273	warn "can only reload from main coroutine\n";
1428	return;	2274	return;
1429	}	2275	}
1430		2276
1431	warn "reloading...";	2277	warn "reloading...";
1432		2278
1433	local $FREEZE = 1;	2279	warn "freezing server";
		2280	my $guard = freeze_mainloop;
1434	cf::emergency_save;	2281	cf::emergency_save;
		2282
		2283	warn "sync database to disk";
		2284	cf::db_sync;
		2285	IO::AIO::flush;
1435		2286
1436	eval {	2287	eval {
1437	# if anything goes wrong in here, we should simply crash as we already saved	2288	# if anything goes wrong in here, we should simply crash as we already saved
1438		2289
1439	# cancel all watchers	2290	warn "cancel all watchers";
1440	for (Event::all_watchers) {	2291	for (Event::all_watchers) {
1441	$_->cancel if $_->data & WF_AUTOCANCEL;	2292	$_->cancel if $_->data & WF_AUTOCANCEL;
1442	}	2293	}
1443		2294
1444	# cancel all extension coros	2295	warn "cancel all extension coros";
1445	$_->cancel for values %EXT_CORO;	2296	$_->cancel for values %EXT_CORO;
1446	%EXT_CORO = ();	2297	%EXT_CORO = ();
1447		2298
		2299	warn "remove commands";
		2300	%COMMAND = ();
		2301
		2302	warn "remove ext commands";
		2303	%EXTCMD = ();
		2304
1448	# unload all extensions	2305	warn "unload/nuke all extensions";
1449	for (@exts) {	2306	for my $pkg (@EXTS) {
1450	warn "unloading <$_>";	2307	warn "... unloading $pkg";
1451	unload_extension $_;	2308
		2309	if (my $cb = $pkg->can ("unload")) {
		2310	eval {
		2311	$cb->($pkg);
		2312	1
		2313	} or warn "$pkg unloaded, but with errors: $@";
1452	}	2314	}
1453		2315
		2316	warn "... nuking $pkg";
		2317	Symbol::delete_package $pkg;
		2318	}
		2319
1454	# unload all modules loaded from $LIBDIR	2320	warn "unload all perl modules loaded from $LIBDIR";
1455	while (my ($k, $v) = each %INC) {	2321	while (my ($k, $v) = each %INC) {
1456	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2322	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1457		2323
1458	warn "removing <$k>";	2324	warn "removing <$k>";
1459	delete $INC{$k};	2325	delete $INC{$k};
…		…
1466	}	2332	}
1467		2333
1468	Symbol::delete_package $k;	2334	Symbol::delete_package $k;
1469	}	2335	}
1470		2336
1471	# sync database to disk
1472	cf::db_sync;
1473	IO::AIO::flush;
1474
1475	# get rid of safe::, as good as possible	2337	warn "get rid of safe::, as good as possible";
1476	Symbol::delete_package "safe::$_"	2338	Symbol::delete_package "safe::$_"
1477	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1478		2340
1479	# remove register_script_function callbacks
1480	# TODO
1481
1482	# unload cf.pm "a bit"	2341	warn "unload cf.pm \"a bit\"";
1483	delete $INC{"cf.pm"};	2342	delete $INC{"cf.pm"};
1484		2343
1485	# don't, removes xs symbols, too,	2344	# don't, removes xs symbols, too,
1486	# and global variables created in xs	2345	# and global variables created in xs
1487	#Symbol::delete_package __PACKAGE__;	2346	#Symbol::delete_package __PACKAGE__;
1488		2347
1489	# reload cf.pm
1490	warn "reloading cf.pm";	2348	warn "reloading cf.pm";
1491	require cf;	2349	require cf;
1492	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2350	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1493		2351
1494	# load config and database again	2352	warn "load config and database again";
1495	cf::cfg_load;	2353	cf::cfg_load;
1496	cf::db_load;	2354	cf::db_load;
1497		2355
1498	# load extensions
1499	warn "load extensions";	2356	warn "load extensions";
1500	cf::load_extensions;	2357	cf::load_extensions;
1501		2358
1502	# reattach attachments to objects	2359	warn "reattach attachments to objects/players";
1503	warn "reattach";
1504	_global_reattach;	2360	_global_reattach;
		2361	warn "reattach attachments to maps";
		2362	reattach $_ for values %MAP;
1505	};	2363	};
1506		2364
1507	if ($@) {	2365	if ($@) {
1508	warn $@;	2366	warn $@;
1509	warn "error while reloading, exiting.";	2367	warn "error while reloading, exiting.";
1510	exit 1;	2368	exit 1;
1511	}	2369	}
1512		2370
1513	warn "reloaded successfully";	2371	warn "reloaded";
1514	};	2372	};
1515		2373
1516	#############################################################################
1517
1518	unless ($LINK_MAP) {
1519	$LINK_MAP = cf::map::new;
1520
1521	$LINK_MAP->width (41);
1522	$LINK_MAP->height (41);
1523	$LINK_MAP->alloc;
1524	$LINK_MAP->path ("{link}");
1525	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1526	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1527	}
1528
1529	register "<global>", __PACKAGE__;
1530
1531	register_command "perl-reload" => sub {	2374	register_command "reload" => sub {
1532	my ($who, $arg) = @_;	2375	my ($who, $arg) = @_;
1533		2376
1534	if ($who->flag (FLAG_WIZ)) {	2377	if ($who->flag (FLAG_WIZ)) {
1535	$who->message ("start of reload.");	2378	$who->message ("start of reload.");
1536	perl_reload;	2379	reload;
1537	$who->message ("end of reload.");	2380	$who->message ("end of reload.");
1538	}	2381	}
1539	};	2382	};
1540		2383
1541	unshift @INC, $LIBDIR;	2384	unshift @INC, $LIBDIR;
…		…
1544	reentrant => 0,	2387	reentrant => 0,
1545	prio => 0,	2388	prio => 0,
1546	at => $NEXT_TICK \|\| $TICK,	2389	at => $NEXT_TICK \|\| $TICK,
1547	data => WF_AUTOCANCEL,	2390	data => WF_AUTOCANCEL,
1548	cb => sub {	2391	cb => sub {
1549	unless ($FREEZE) {	2392	$NOW = Event::time;
		2393
1550	cf::server_tick; # one server iteration	2394	cf::server_tick; # one server iteration
1551	$RUNTIME += $TICK;	2395	$RUNTIME += $TICK;
1552	}
1553
1554	$NEXT_TICK += $TICK;	2396	$NEXT_TICK += $TICK;
		2397
		2398	$WAIT_FOR_TICK->broadcast;
		2399	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
1555		2400
1556	# if we are delayed by four ticks or more, skip them all	2401	# if we are delayed by four ticks or more, skip them all
1557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2402	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1558		2403
1559	$TICK_WATCHER->at ($NEXT_TICK);	2404	$TICK_WATCHER->at ($NEXT_TICK);
…		…
1561	},	2406	},
1562	);	2407	);
1563		2408
1564	IO::AIO::max_poll_time $TICK * 0.2;	2409	IO::AIO::max_poll_time $TICK * 0.2;
1565		2410
1566	Event->io (	2411	$AIO_POLL_WATCHER = Event->io (
1567	fd => IO::AIO::poll_fileno,	2412	fd => IO::AIO::poll_fileno,
1568	poll => 'r',	2413	poll => 'r',
1569	prio => 5,	2414	prio => 5,
1570	data => WF_AUTOCANCEL,	2415	data => WF_AUTOCANCEL,
1571	cb => \&IO::AIO::poll_cb,	2416	cb => \&IO::AIO::poll_cb,
1572	);	2417	);
1573		2418
1574	Event->timer (	2419	$WRITE_RUNTIME_WATCHER = Event->timer (
1575	data => WF_AUTOCANCEL,	2420	data => WF_AUTOCANCEL,
1576	after => 0,	2421	after => 0,
1577	interval => 10,	2422	interval => 10,
1578	cb => sub {	2423	cb => sub {
1579	(Coro::unblock_sub {	2424	(Coro::unblock_sub {
…		…
1581	or warn "ERROR: unable to write runtime file: $!";	2426	or warn "ERROR: unable to write runtime file: $!";
1582	})->();	2427	})->();
1583	},	2428	},
1584	);	2429	);
1585		2430
		2431	END { cf::emergency_save }
		2432
1586	1	2433	1
1587		2434

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Comparing cf.schmorp.de/server/lib/cf.pm (file contents): Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC vs. Revision 1.168 by root, Sun Jan 14 00:37:14 2007 UTC

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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC vs.
Revision 1.168 by root, Sun Jan 14 00:37:14 2007 UTC