[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 1.167 by root, Sat Jan 13 23:32:43 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;
…		…
47	our %CFG;	52	our %CFG;
48		53
49	our $UPTIME; $UPTIME \|\|= time;	54	our $UPTIME; $UPTIME \|\|= time;
50	our $RUNTIME;	55	our $RUNTIME;
51		56
		57	our %PLAYER; # all users
52	our %MAP; # all maps	58	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	59	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	60	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	61
		62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK \|\|= new Coro::Signal;
		63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE \|\|= new Coro::Signal;
		64
		65	# used to convert map paths into valid unix filenames by replacing / by ∕
		66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		67
58	binmode STDOUT;	68	binmode STDOUT;
59	binmode STDERR;	69	binmode STDERR;
60		70
61	# read virtual server time, if available	71	# read virtual server time, if available
…		…
69	mkdir cf::localdir . "/" . cf::playerdir;	79	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	80	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	81	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	82	mkdir $RANDOM_MAPS;
73		83
74	# a special map that is always available	84	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		85
77	#############################################################################	86	#############################################################################
78		87
79	=head2 GLOBAL VARIABLES	88	=head2 GLOBAL VARIABLES
80		89
…		…
104		113
105	=item %cf::CFG	114	=item %cf::CFG
106		115
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	116	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	117	from wherever your confdir points to.
		118
		119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		120
		121	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		122	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		123	processing has been done. Call C<< ->wait >> on them to maximise the
		124	window of cpu time available, or simply to synchronise to the server tick.
109		125
110	=back	126	=back
111		127
112	=cut	128	=cut
113		129
…		…
117	utf8::encode $msg;	133	utf8::encode $msg;
118		134
119	$msg .= "\n"	135	$msg .= "\n"
120	unless $msg =~ /\n$/;	136	unless $msg =~ /\n$/;
121		137
122	LOG llevError, "cfperl: $msg";	138	LOG llevError, $msg;
123	};	139	};
124	}	140	}
125		141
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		161
146	$Event::DIED = sub {	162	$Event::DIED = sub {
147	warn "error in event callback: @_";	163	warn "error in event callback: @_";
148	};	164	};
149		165
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	166	=head2 UTILITY FUNCTIONS
155		167
156	=over 4	168	=over 4
157		169
		170	=item dumpval $ref
		171
158	=cut	172	=cut
		173
		174	sub dumpval {
		175	eval {
		176	local $SIG{__DIE__};
		177	my $d;
		178	if (1) {
		179	$d = new Data::Dumper([$_[0]], ["*var"]);
		180	$d->Terse(1);
		181	$d->Indent(2);
		182	$d->Quotekeys(0);
		183	$d->Useqq(1);
		184	#$d->Bless(...);
		185	$d->Seen($_[1]) if @_ > 1;
		186	$d = $d->Dump();
		187	}
		188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		189	$d
		190	} \|\| "[unable to dump $_[0]: '$@']";
		191	}
159		192
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	193	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		194
162	=item $ref = cf::from_json $json	195	=item $ref = cf::from_json $json
163		196
…		…
178		211
179	sub to_json($) {	212	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]	214	JSON::Syck::Dump $_[0]
182	}	215	}
		216
		217	=item cf::lock_wait $string
		218
		219	Wait until the given lock is available. See cf::lock_acquire.
		220
		221	=item my $lock = cf::lock_acquire $string
		222
		223	Wait until the given lock is available and then acquires it and returns
		224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		225	for example when the coroutine gets canceled), the lock is automatically
		226	returned.
		227
		228	Lock names should begin with a unique identifier (for example, cf::map::find
		229	uses map_find and cf::map::load uses map_load).
		230
		231	=cut
		232
		233	our %LOCK;
		234
		235	sub lock_wait($) {
		236	my ($key) = @_;
		237
		238	# wait for lock, if any
		239	while ($LOCK{$key}) {
		240	push @{ $LOCK{$key} }, $Coro::current;
		241	Coro::schedule;
		242	}
		243	}
		244
		245	sub lock_acquire($) {
		246	my ($key) = @_;
		247
		248	# wait, to be sure we are not locked
		249	lock_wait $key;
		250
		251	$LOCK{$key} = [];
		252
		253	Coro::guard {
		254	# wake up all waiters, to be on the safe side
		255	$_->ready for @{ delete $LOCK{$key} };
		256	}
		257	}
		258
		259	sub freeze_mainloop {
		260	return unless $TICK_WATCHER->is_active;
		261
		262	my $guard = Coro::guard { $TICK_WATCHER->start };
		263	$TICK_WATCHER->stop;
		264	$guard
		265	}
		266
		267	=item cf::async { BLOCK }
		268
		269	Currently the same as Coro::async_pool, meaning you cannot use
		270	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		271	thing you are allowed to do is call C<prio> on it.
		272
		273	=cut
		274
		275	BEGIN { *async = \&Coro::async_pool }
183		276
184	=item cf::sync_job { BLOCK }	277	=item cf::sync_job { BLOCK }
185		278
186	The design of crossfire+ requires that the main coro ($Coro::main) is	279	The design of crossfire+ requires that the main coro ($Coro::main) is
187	always able to handle events or runnable, as crossfire+ is only partly	280	always able to handle events or runnable, as crossfire+ is only partly
…		…
195	=cut	288	=cut
196		289
197	sub sync_job(&) {	290	sub sync_job(&) {
198	my ($job) = @_;	291	my ($job) = @_;
199		292
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 == $Coro::main) {	293	if ($Coro::current == $Coro::main) {
		294	# this is the main coro, too bad, we have to block
		295	# till the operation succeeds, freezing the server :/
		296
		297	# TODO: use suspend/resume instead
		298	# (but this is cancel-safe)
		299	my $freeze_guard = freeze_mainloop;
		300
		301	my $busy = 1;
		302	my @res;
		303
		304	(async {
		305	@res = eval { $job->() };
		306	warn $@ if $@;
		307	undef $busy;
213	$coro->prio (Coro::PRIO_MAX);	308	})->prio (Coro::PRIO_MAX);
		309
214	while ($busy) {	310	while ($busy) {
215	Coro::cede_notself;	311	Coro::cede or Event::one_event;
216	Event::one_event unless Coro::nready;
217	}	312	}
		313
		314	wantarray ? @res : $res[0]
218	} else {	315	} else {
219	$coro->join;	316	# we are in another coroutine, how wonderful, everything just works
		317
		318	$job->()
220	}	319	}
221
222	wantarray ? @res : $res[0]
223	}	320	}
224		321
225	=item $coro = cf::coro { BLOCK }	322	=item $coro = cf::async_ext { BLOCK }
226		323
227	Creates and returns a new coro. This coro is automcatially being canceled	324	Like async, but this coro is automatically being canceled when the
228	when the extension calling this is being unloaded.	325	extension calling this is being unloaded.
229		326
230	=cut	327	=cut
231		328
232	sub coro(&) {	329	sub async_ext(&) {
233	my $cb = shift;	330	my $cb = shift;
234		331
235	my $coro; $coro = async {	332	my $coro = &Coro::async ($cb);
236	eval {
237	$cb->();
238	};
239	warn $@ if $@;
240	};
241		333
242	$coro->on_destroy (sub {	334	$coro->on_destroy (sub {
243	delete $EXT_CORO{$coro+0};	335	delete $EXT_CORO{$coro+0};
244	});	336	});
245	$EXT_CORO{$coro+0} = $coro;	337	$EXT_CORO{$coro+0} = $coro;
246		338
247	$coro	339	$coro
248	}	340	}
249		341
250	sub write_runtime {	342	sub write_runtime {
		343	return unless $TICK_WATCHER->is_active;
		344
251	my $runtime = cf::localdir . "/runtime";	345	my $runtime = cf::localdir . "/runtime";
252		346
253	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644	347	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
254	or return;	348	or return;
255		349
256	my $value = $cf::RUNTIME;	350	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	351	(aio_write $fh, 0, (length $value), $value, 0) <= 0
258	and return;	352	and return;
259		353
260	aio_fsync $fh	354	aio_fsync $fh
261	and return;	355	and return;
…		…
270	}	364	}
271		365
272	=back	366	=back
273		367
274	=cut	368	=cut
275
276	#############################################################################
277
278	package cf::path;
279
280	sub new {
281	my ($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	$_[0]{path} =~ m{^/styles/}
375	}
376
377	package cf;
378		369
379	#############################################################################	370	#############################################################################
380		371
381	=head2 ATTACHABLE OBJECTS	372	=head2 ATTACHABLE OBJECTS
382		373
…		…
790	or return;	781	or return;
791		782
792	unless (aio_stat "$filename.pst") {	783	unless (aio_stat "$filename.pst") {
793	(aio_load "$filename.pst", $av) >= 0	784	(aio_load "$filename.pst", $av) >= 0
794	or return;	785	or return;
795	$av = eval { (Storable::thaw <$av>)->{objs} };	786	$av = eval { (Storable::thaw $av)->{objs} };
796	}	787	}
797		788
		789	warn sprintf "loading %s (%d)\n",
		790	$filename, length $data, scalar @{$av \|\| []};#d#
798	return ($data, $av);	791	return ($data, $av);
799	}	792	}
800		793
801	#############################################################################	794	#############################################################################
802	# command handling &c	795	# command handling &c
…		…
827	=cut	820	=cut
828		821
829	sub register_extcmd {	822	sub register_extcmd {
830	my ($name, $cb) = @_;	823	my ($name, $cb) = @_;
831		824
832	my $caller = caller;
833	#warn "registering extcmd '$name' to '$caller'";
834
835	$EXTCMD{$name} = [$cb, $caller];	825	$EXTCMD{$name} = $cb;
836	}	826	}
837		827
838	cf::player->attach (	828	cf::player->attach (
839	on_command => sub {	829	on_command => sub {
840	my ($pl, $name, $params) = @_;	830	my ($pl, $name, $params) = @_;
…		…
853		843
854	my $msg = eval { from_json $buf };	844	my $msg = eval { from_json $buf };
855		845
856	if (ref $msg) {	846	if (ref $msg) {
857	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	847	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
858	if (my %reply = $cb->[0]->($pl, $msg)) {	848	if (my %reply = $cb->($pl, $msg)) {
859	$pl->ext_reply ($msg->{msgid}, %reply);	849	$pl->ext_reply ($msg->{msgid}, %reply);
860	}	850	}
861	}	851	}
862	} else {	852	} else {
863	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	853	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
865		855
866	cf::override;	856	cf::override;
867	},	857	},
868	);	858	);
869		859
870	sub register {
871	my ($base, $pkg) = @_;
872
873	#TODO
874	}
875
876	sub load_extension {	860	sub load_extension {
877	my ($path) = @_;	861	my ($path) = @_;
878		862
879	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	863	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
880	my $base = $1;	864	my $base = $1;
881	my $pkg = $1;	865	my $pkg = $1;
882	$pkg =~ s/[^[:word:]]/_/g;	866	$pkg =~ s/[^[:word:]]/_/g;
883	$pkg = "ext::$pkg";	867	$pkg = "ext::$pkg";
884		868
885	warn "loading '$path' into '$pkg'\n";	869	warn "... loading '$path' into '$pkg'\n";
886		870
887	open my $fh, "<:utf8", $path	871	open my $fh, "<:utf8", $path
888	or die "$path: $!";	872	or die "$path: $!";
889		873
890	my $source =	874	my $source =
891	"package $pkg; use strict; use utf8;\n"	875	"package $pkg; use strict; use utf8;\n"
892	. "#line 1 \"$path\"\n{\n"	876	. "#line 1 \"$path\"\n{\n"
893	. (do { local $/; <$fh> })	877	. (do { local $/; <$fh> })
894	. "\n};\n1";	878	. "\n};\n1";
895		879
896	eval $source	880	unless (eval $source) {
897	or die $@ ? "$path: $@\n"	881	my $msg = $@ ? "$path: $@\n"
898	: "extension disabled.\n";	882	: "extension disabled.\n";
899		883	if ($source =~ /^#!.perl.#.*MANDATORY/m) { # ugly match
900	push @exts, $pkg;	884	warn $@;
901	$ext_pkg{$base} = $pkg;	885	warn "mandatory extension failed to load, exiting.\n";
902		886	exit 1;
903	# no strict 'refs';	887	}
904	# @{"$pkg\::ISA"} = ext::;	888	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	# }	889	}
919		890
920	# remove commands	891	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	}	892	}
945		893
946	sub load_extensions {	894	sub load_extensions {
947	for my $ext (<$LIBDIR/*.ext>) {	895	for my $ext (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	896	next unless -r $ext;
…		…
952	} or warn "$ext not loaded: $@";	900	} or warn "$ext not loaded: $@";
953	}	901	}
954	}	902	}
955		903
956	#############################################################################	904	#############################################################################
957	# load/save/clean perl data associated with a map
958		905
959	*cf::mapsupport::on_clean = sub {	906	=head2 CORE EXTENSIONS
		907
		908	Functions and methods that extend core crossfire objects.
		909
		910	=cut
		911
		912	package cf::player;
		913
		914	use Coro::AIO;
		915
		916	=head3 cf::player
		917
		918	=over 4
		919
		920	=item cf::player::find $login
		921
		922	Returns the given player object, loading it if necessary (might block).
		923
		924	=cut
		925
		926	sub playerdir($) {
		927	cf::localdir
		928	. "/"
		929	. cf::playerdir
		930	. "/"
		931	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		932	}
		933
		934	sub path($) {
		935	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		936
		937	(playerdir $login) . "/$login.pl"
		938	}
		939
		940	sub find_active($) {
		941	$cf::PLAYER{$_[0]}
		942	and $cf::PLAYER{$_[0]}->active
		943	and $cf::PLAYER{$_[0]}
		944	}
		945
		946	sub exists($) {
		947	my ($login) = @_;
		948
		949	$cf::PLAYER{$login}
		950	or cf::sync_job { !aio_stat $login }
		951	}
		952
		953	sub find($) {
		954	return $cf::PLAYER{$_[0]} \|\| do {
		955	my $login = $_[0];
		956
		957	my $guard = cf::lock_acquire "user_find:$login";
		958
		959	$cf::PLAYER{$_[0]} \|\| do {
		960	my $pl = load_pl path $login
		961	or return;
		962	$cf::PLAYER{$login} = $pl
		963	}
		964	}
		965	}
		966
		967	sub save($) {
		968	my ($pl) = @_;
		969
		970	return if $pl->{deny_save};
		971
		972	my $path = path $pl;
		973	my $guard = cf::lock_acquire "user_save:$path";
		974
		975	return if $pl->{deny_save};
		976
		977	aio_mkdir playerdir $pl, 0770;
		978	$pl->{last_save} = $cf::RUNTIME;
		979
		980	$pl->save_pl ($path);
		981	Coro::cede;
		982	}
		983
		984	sub new($) {
		985	my ($login) = @_;
		986
		987	my $self = create;
		988
		989	$self->ob->name ($login);
		990	$self->{deny_save} = 1;
		991
		992	$cf::PLAYER{$login} = $self;
		993
		994	$self
		995	}
		996
		997	=item $pl->quit_character
		998
		999	Nukes the player without looking back. If logged in, the connection will
		1000	be destroyed. May block for a long time.
		1001
		1002	=cut
		1003
		1004	sub quit_character {
		1005	my ($pl) = @_;
		1006
		1007	$pl->{deny_save} = 1;
		1008	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1009
		1010	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1011	$pl->deactivate;
		1012	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1013	$pl->ns->destroy if $pl->ns;
		1014
		1015	my $path = playerdir $pl;
		1016	my $temp = "$path~$cf::RUNTIME~deleting~";
		1017	aio_rename $path, $temp;
		1018	delete $cf::PLAYER{$pl->ob->name};
		1019	$pl->destroy;
		1020	IO::AIO::aio_rmtree $temp;
		1021	}
		1022
		1023	=item cf::player::list_logins
		1024
		1025	Returns am arrayref of all valid playernames in the system, can take a
		1026	while and may block, so not sync_job-capable, ever.
		1027
		1028	=cut
		1029
		1030	sub list_logins {
		1031	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1032	or return [];
		1033
		1034	my @logins;
		1035
		1036	for my $login (@$dirs) {
		1037	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1038	aio_read $fh, 0, 512, my $buf, 0 or next;
		1039	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1040
		1041	utf8::decode $login;
		1042	push @logins, $login;
		1043	}
		1044
		1045	\@logins
		1046	}
		1047
		1048	=item $player->maps
		1049
		1050	Returns an arrayref of map paths that are private for this
		1051	player. May block.
		1052
		1053	=cut
		1054
		1055	sub maps($) {
		1056	my ($pl) = @_;
		1057
		1058	my $files = aio_readdir playerdir $pl
		1059	or return;
		1060
		1061	my @paths;
		1062
		1063	for (@$files) {
		1064	utf8::decode $_;
		1065	next if /\.(?:pl\|pst)$/;
		1066	next unless /^$PATH_SEP/o;
		1067
		1068	s/\.map$//;
		1069	push @paths, "~" . $pl->ob->name . "/" . $_;
		1070	}
		1071
		1072	\@paths
		1073	}
		1074
		1075	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1076
		1077	Sends an ext reply to the player.
		1078
		1079	=cut
		1080
		1081	sub ext_reply($$$%) {
		1082	my ($self, $id, %msg) = @_;
		1083
		1084	$msg{msgid} = $id;
		1085
		1086	$self->send ("ext " . cf::to_json \%msg);
		1087	}
		1088
		1089	package cf;
		1090
		1091	=back
		1092
		1093
		1094	=head3 cf::map
		1095
		1096	=over 4
		1097
		1098	=cut
		1099
		1100	package cf::map;
		1101
		1102	use Fcntl;
		1103	use Coro::AIO;
		1104
		1105	use overload
		1106	'""' => \&as_string;
		1107
		1108	our $MAX_RESET = 3600;
		1109	our $DEFAULT_RESET = 3000;
		1110
		1111	sub generate_random_map {
		1112	my ($self, $rmp) = @_;
		1113
		1114	# mit "rum" bekleckern, nicht
		1115	$self->_create_random_map (
		1116	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1117	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1118	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1119	$rmp->{exit_on_final_map},
		1120	$rmp->{xsize}, $rmp->{ysize},
		1121	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1122	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1123	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1124	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1125	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1126	(cf::region::find $rmp->{region}), $rmp->{custom}
		1127	)
		1128	}
		1129
		1130	sub register {
		1131	my (undef, $regex) = @_;
		1132	my $pkg = caller;
		1133
		1134	no strict;
		1135	push @{"$pkg\::ISA"}, __PACKAGE__;
		1136
		1137	$EXT_MAP{$pkg} = qr<$regex>;
		1138	}
		1139
		1140	# also paths starting with '/'
		1141	$EXT_MAP{"cf::map"} = qr{^(?=/)};
		1142
		1143	sub normalise {
		1144	my ($path, $base) = @_;
		1145
		1146	# map plan:
		1147	#
		1148	# /! non-realised random map exit (special hack!)
		1149	# {... are special paths that are not being touched
		1150	# ?xxx/... are special absolute paths
		1151	# ?random/... random maps
		1152	# /... normal maps
		1153	# ~user/... per-player map of a specific user
		1154
		1155	$path =~ s/$PATH_SEP/\//go;
		1156
		1157	# treat it as relative path if it starts with
		1158	# something that looks reasonable
		1159	if ($path =~ m{^(?:\./\|\.\./\|\w)}) {
		1160	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1161
		1162	$base =~ s{[^/]+/?$}{};
		1163	$path = "$base/$path";
		1164	}
		1165
		1166	for ($path) {
		1167	redo if s{//}{/};
		1168	redo if s{/\.?/}{/};
		1169	redo if s{/[^/]+/\.\./}{/};
		1170	}
		1171
		1172	$path
		1173	}
		1174
		1175	sub new_from_path {
		1176	my (undef, $path, $base) = @_;
		1177
		1178	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1179
		1180	$path = normalise $path, $base;
		1181
		1182	for my $pkg (keys %EXT_MAP) {
		1183	if ($path =~ $EXT_MAP{$pkg}) {
		1184	my $self = bless cf::map::new, $pkg;
		1185	$self->{path} = $path; $self->path ($path);
		1186	$self->init; # pass $1 etc.
		1187	return $self;
		1188	}
		1189	}
		1190
		1191	Carp::carp "unable to resolve path '$path'.";
		1192	()
		1193	}
		1194
		1195	sub init {
		1196	my ($self) = @_;
		1197
		1198	$self
		1199	}
		1200
		1201	sub as_string {
		1202	my ($self) = @_;
		1203
		1204	"$self->{path}"
		1205	}
		1206
		1207	# the displayed name, this is a one way mapping
		1208	sub visible_name {
		1209	&as_string
		1210	}
		1211
		1212	# the original (read-only) location
		1213	sub load_path {
		1214	my ($self) = @_;
		1215
		1216	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1217	}
		1218
		1219	# the temporary/swap location
		1220	sub save_path {
		1221	my ($self) = @_;
		1222
		1223	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1224	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1225	}
		1226
		1227	# the unique path, undef == no special unique path
		1228	sub uniq_path {
		1229	my ($self) = @_;
		1230
		1231	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1232	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1233	}
		1234
		1235	# and all this just because we cannot iterate over
		1236	# all maps in C++...
		1237	sub change_all_map_light {
		1238	my ($change) = @_;
		1239
		1240	$_->change_map_light ($change)
		1241	for grep $_->outdoor, values %cf::MAP;
		1242	}
		1243
		1244	sub unlink_save {
		1245	my ($self) = @_;
		1246
		1247	utf8::encode (my $save = $self->save_path);
		1248	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
		1249	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
		1250	}
		1251
		1252	sub load_header_from($) {
		1253	my ($self, $path) = @_;
		1254
		1255	utf8::encode $path;
		1256	aio_open $path, O_RDONLY, 0
		1257	or return;
		1258
		1259	$self->_load_header ($path)
		1260	or return;
		1261
		1262	$self->{load_path} = $path;
		1263
		1264	1
		1265	}
		1266
		1267	sub load_orig {
		1268	my ($self) = @_;
		1269
		1270	$self->load_header_from ($self->load_path)
		1271	}
		1272
		1273	sub load_temp {
		1274	my ($self) = @_;
		1275
		1276	$self->load_header_from ($self->save_path)
		1277	}
		1278
		1279	sub load_header {
		1280	my ($self) = @_;
		1281
		1282	if ($self->load_temp) {
		1283	$self->last_access ((delete $self->{last_access})
		1284	\|\| $cf::RUNTIME); #d#
		1285	# safety
		1286	$self->{instantiate_time} = $cf::RUNTIME
		1287	if $self->{instantiate_time} > $cf::RUNTIME;
		1288	} else {
		1289	$self->load_orig
		1290	or return;
		1291
		1292	$self->{load_original} = 1;
		1293	$self->{instantiate_time} = $cf::RUNTIME;
		1294	$self->last_access ($cf::RUNTIME);
		1295	$self->instantiate;
		1296	}
		1297
		1298	1
		1299	}
		1300
		1301	sub find;
		1302	sub find {
		1303	my ($path, $origin) = @_;
		1304
		1305	$path = normalise $path, $origin && $origin->path;
		1306
		1307	cf::lock_wait "map_find:$path";
		1308
		1309	$cf::MAP{$path} \|\| do {
		1310	my $guard = cf::lock_acquire "map_find:$path";
		1311	my $map = new_from_path cf::map $path
		1312	or return;
		1313
		1314	$map->{last_save} = $cf::RUNTIME;
		1315
		1316	$map->load_header
		1317	or return;
		1318
		1319	if ($map->should_reset) {
		1320	$map->reset;
		1321	undef $guard;
		1322	$map = find $path
		1323	or return;
		1324	}
		1325
		1326	$cf::MAP{$path} = $map
		1327	}
		1328	}
		1329
		1330	sub load {
		1331	my ($self) = @_;
		1332
		1333	my $path = $self->{path};
		1334	my $guard = cf::lock_acquire "map_load:$path";
		1335
		1336	return if $self->in_memory != cf::MAP_SWAPPED;
		1337
		1338	$self->in_memory (cf::MAP_LOADING);
		1339
		1340	$self->alloc;
		1341	$self->_load_objects ($self->{load_path}, 1)
		1342	or return;
		1343
		1344	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1345	if delete $self->{load_original};
		1346
		1347	if (my $uniq = $self->uniq_path) {
		1348	utf8::encode $uniq;
		1349	if (aio_open $uniq, O_RDONLY, 0) {
		1350	$self->clear_unique_items;
		1351	$self->_load_objects ($uniq, 0);
		1352	}
		1353	}
		1354
		1355	Coro::cede;
		1356
		1357	# now do the right thing for maps
		1358	$self->link_multipart_objects;
		1359
		1360	unless ($self->{deny_activate}) {
		1361	$self->decay_objects;
		1362	$self->fix_auto_apply;
		1363	$self->update_buttons;
		1364	Coro::cede;
		1365	$self->set_darkness_map;
		1366	$self->difficulty ($self->estimate_difficulty)
		1367	unless $self->difficulty;
		1368	Coro::cede;
		1369	$self->activate;
		1370	}
		1371
		1372	$self->in_memory (cf::MAP_IN_MEMORY);
		1373	}
		1374
		1375	sub customise_for {
		1376	my ($self, $ob) = @_;
		1377
		1378	return find "~" . $ob->name . "/" . $self->{path}
		1379	if $self->per_player;
		1380
		1381	$self
		1382	}
		1383
		1384	# find and load all maps in the 3x3 area around a map
		1385	sub load_diag {
960	my ($map) = @_;	1386	my ($map) = @_;
961		1387
962	my $path = $map->tmpname;	1388	my @diag; # diagonal neighbours
963	defined $path or return;
964		1389
965	unlink "$path.pst";	1390	for (0 .. 3) {
		1391	my $neigh = $map->tile_path ($_)
		1392	or next;
		1393	$neigh = find $neigh, $map
		1394	or next;
		1395	$neigh->load;
		1396
		1397	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1398	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1399	}
		1400
		1401	for (@diag) {
		1402	my $neigh = find @$_
		1403	or next;
		1404	$neigh->load;
		1405	}
		1406	}
		1407
		1408	sub find_sync {
		1409	my ($path, $origin) = @_;
		1410
		1411	cf::sync_job { find $path, $origin }
		1412	}
		1413
		1414	sub do_load_sync {
		1415	my ($map) = @_;
		1416
		1417	cf::sync_job { $map->load };
		1418	}
		1419
		1420	our %MAP_PREFETCH;
		1421	our $MAP_PREFETCHER = Coro::async {
		1422	while () {
		1423	for my $path (keys %MAP_PREFETCH) {
		1424	my $map = find $path
		1425	or next;
		1426	$map->load;
		1427
		1428	delete $MAP_PREFETCH{$path};
		1429	}
		1430	Coro::schedule;
		1431	}
966	};	1432	};
967		1433
968	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1434	sub find_async {
		1435	my ($path, $origin) = @_;
969		1436
970	#############################################################################	1437	$path = normalise $path, $origin && $origin->{path};
971	# load/save perl data associated with player->ob objects
972		1438
973	sub all_objects(@) {	1439	if (my $map = $cf::MAP{$path}) {
974	@_, map all_objects ($_->inv), @_	1440	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	},	1441	}
990	);
991		1442
992	#############################################################################	1443	$MAP_PREFETCH{$path} = 0;
		1444	$MAP_PREFETCHER->ready;
993		1445
994	=head2 CORE EXTENSIONS	1446	()
		1447	}
995		1448
996	Functions and methods that extend core crossfire objects.	1449	sub save {
		1450	my ($self) = @_;
997		1451
998	=head3 cf::player	1452	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1453
		1454	$self->{last_save} = $cf::RUNTIME;
		1455
		1456	return unless $self->dirty;
		1457
		1458	my $save = $self->save_path; utf8::encode $save;
		1459	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1460
		1461	$self->{load_path} = $save;
		1462
		1463	return if $self->{deny_save};
		1464
		1465	local $self->{last_access} = $self->last_access;#d#
		1466
		1467	cf::async {
		1468	$_->contr->save for $self->players;
		1469	};
		1470
		1471	if ($uniq) {
		1472	$self->_save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS);
		1473	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1474	} else {
		1475	$self->_save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS \| cf::IO_UNIQUES);
		1476	}
		1477	}
		1478
		1479	sub swap_out {
		1480	my ($self) = @_;
		1481
		1482	# save first because save cedes
		1483	$self->save;
		1484
		1485	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1486
		1487	return if $self->players;
		1488	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1489	return if $self->{deny_save};
		1490
		1491	$self->clear;
		1492	$self->in_memory (cf::MAP_SWAPPED);
		1493	}
		1494
		1495	sub reset_at {
		1496	my ($self) = @_;
		1497
		1498	# TODO: safety, remove and allow resettable per-player maps
		1499	return 1e99 if $self->isa ("ext::map_per_player");
		1500	return 1e99 if $self->{deny_reset};
		1501
		1502	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1503	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
		1504
		1505	$time + $to
		1506	}
		1507
		1508	sub should_reset {
		1509	my ($self) = @_;
		1510
		1511	$self->reset_at <= $cf::RUNTIME
		1512	}
		1513
		1514	sub rename {
		1515	my ($self, $new_path) = @_;
		1516
		1517	normalise $new_path;
		1518
		1519	$self->unlink_save;
		1520
		1521	delete $cf::MAP{$self->path};
		1522	$self->{path} = $new_path; $self->path ($self->{path});
		1523	$cf::MAP{$self->path} = $self;
		1524
		1525	$self->save;
		1526	}
		1527
		1528	sub reset {
		1529	my ($self) = @_;
		1530
		1531	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1532
		1533	return if $self->players;
		1534	return if $self->isa ("ext::map_per_player");#d#
		1535
		1536	warn "resetting map ", $self->path;#d#
		1537
		1538	delete $cf::MAP{$self->path};
		1539
		1540	$self->in_memory (cf::MAP_SWAPPED);
		1541	$self->clear;
		1542
		1543	$_->clear_links_to ($self) for values %cf::MAP;
		1544
		1545	$self->unlink_save;
		1546	$self->destroy;
		1547	}
		1548
		1549	my $nuke_counter = "aaaa";
		1550
		1551	sub nuke {
		1552	my ($self) = @_;
		1553
		1554	$self->{deny_save} = 1;
		1555	$self->reset_timeout (1);
		1556	$self->rename ("{nuke}/" . ($nuke_counter++));
		1557	$self->reset; # polite request, might not happen
		1558	}
		1559
		1560	=item cf::map::unique_maps
		1561
		1562	Returns an arrayref of paths of all shared maps that have
		1563	instantiated unique items. May block.
		1564
		1565	=cut
		1566
		1567	sub unique_maps() {
		1568	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1569	or return;
		1570
		1571	my @paths;
		1572
		1573	for (@$files) {
		1574	utf8::decode $_;
		1575	next if /\.pst$/;
		1576	next unless /^$PATH_SEP/o;
		1577
		1578	s/\.map$//;
		1579	push @paths, $_;
		1580	}
		1581
		1582	\@paths
		1583	}
		1584
		1585	package cf;
		1586
		1587	=back
		1588
		1589	=head3 cf::object
		1590
		1591	=cut
		1592
		1593	package cf::object;
999		1594
1000	=over 4	1595	=over 4
1001		1596
1002	=item cf::player::exists $login	1597	=item $ob->inv_recursive
1003		1598
1004	Returns true when the given account exists.	1599	Returns the inventory of the object _and_ their inventories, recursively.
1005		1600
1006	=cut	1601	=cut
1007		1602
1008	sub cf::player::exists($) {	1603	sub inv_recursive_;
1009	cf::player::find $_[0]	1604	sub inv_recursive_ {
1010	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1605	map { $_, inv_recursive_ $_->inv } @_
1011	}	1606	}
1012		1607
1013	=item $player->ext_reply ($msgid, $msgtype, %msg)	1608	sub inv_recursive {
1014		1609	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	}	1610	}
		1611
		1612	package cf;
1026		1613
1027	=back	1614	=back
1028		1615
1029	=head3 cf::object::player	1616	=head3 cf::object::player
1030		1617
…		…
1068	(ref $cf::CFG{"may_$access"}	1655	(ref $cf::CFG{"may_$access"}
1069	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1656	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1070	: $cf::CFG{"may_$access"})	1657	: $cf::CFG{"may_$access"})
1071	}	1658	}
1072		1659
		1660	=item $player_object->enter_link
		1661
		1662	Freezes the player and moves him/her to a special map (C<{link}>).
		1663
		1664	The player should be reasonably safe there for short amounts of time. You
		1665	I<MUST> call C<leave_link> as soon as possible, though.
		1666
		1667	Will never block.
		1668
		1669	=item $player_object->leave_link ($map, $x, $y)
		1670
		1671	Moves the player out of the special C<{link}> map onto the specified
		1672	map. If the map is not valid (or omitted), the player will be moved back
		1673	to the location he/she was before the call to C<enter_link>, or, if that
		1674	fails, to the emergency map position.
		1675
		1676	Might block.
		1677
		1678	=cut
		1679
		1680	sub link_map {
		1681	unless ($LINK_MAP) {
		1682	$LINK_MAP = cf::map::find "{link}"
		1683	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1684	$LINK_MAP->load;
		1685	}
		1686
		1687	$LINK_MAP
		1688	}
		1689
		1690	sub cf::object::player::enter_link {
		1691	my ($self) = @_;
		1692
		1693	$self->deactivate_recursive;
		1694
		1695	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1696
		1697	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
		1698	if $self->map;
		1699
		1700	$self->enter_map ($LINK_MAP \|\| link_map, 20, 20);
		1701	}
		1702
		1703	sub cf::object::player::leave_link {
		1704	my ($self, $map, $x, $y) = @_;
		1705
		1706	my $link_pos = delete $self->{_link_pos};
		1707
		1708	unless ($map) {
		1709	# restore original map position
		1710	($map, $x, $y) = @{ $link_pos \|\| [] };
		1711	$map = cf::map::find $map;
		1712
		1713	unless ($map) {
		1714	($map, $x, $y) = @$EMERGENCY_POSITION;
		1715	$map = cf::map::find $map
		1716	or die "FATAL: cannot load emergency map\n";
		1717	}
		1718	}
		1719
		1720	($x, $y) = (-1, -1)
		1721	unless (defined $x) && (defined $y);
		1722
		1723	# use -1 or undef as default coordinates, not 0, 0
		1724	($x, $y) = ($map->enter_x, $map->enter_y)
		1725	if $x <=0 && $y <= 0;
		1726
		1727	$map->load;
		1728	$map->load_diag;
		1729
		1730	return unless $self->contr->active;
		1731	$self->activate_recursive;
		1732	$self->enter_map ($map, $x, $y);
		1733	}
		1734
		1735	cf::player->attach (
		1736	on_logout => sub {
		1737	my ($pl) = @_;
		1738
		1739	# abort map switching before logout
		1740	if ($pl->ob->{_link_pos}) {
		1741	cf::sync_job {
		1742	$pl->ob->leave_link
		1743	};
		1744	}
		1745	},
		1746	on_login => sub {
		1747	my ($pl) = @_;
		1748
		1749	# try to abort aborted map switching on player login :)
		1750	# should happen only on crashes
		1751	if ($pl->ob->{_link_pos}) {
		1752	$pl->ob->enter_link;
		1753	(async {
		1754	# we need this sleep as the login has a concurrent enter_exit running
		1755	# and this sleep increases chances of the player not ending up in scorn
		1756	$pl->ob->reply (undef,
		1757	"There was an internal problem at your last logout, "
		1758	. "the server will try to bring you to your intended destination in a second.",
		1759	cf::NDI_RED);
		1760	Coro::Timer::sleep 1;
		1761	$pl->ob->leave_link;
		1762	})->prio (2);
		1763	}
		1764	},
		1765	);
		1766
		1767	=item $player_object->goto ($path, $x, $y)
		1768
		1769	=cut
		1770
		1771	sub cf::object::player::goto {
		1772	my ($self, $path, $x, $y) = @_;
		1773
		1774	$self->enter_link;
		1775
		1776	(async {
		1777	my $map = cf::map::find $path;
		1778	$map = $map->customise_for ($self) if $map;
		1779
		1780	# warn "entering ", $map->path, " at ($x, $y)\n"
		1781	# if $map;
		1782
		1783	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		1784
		1785	$self->leave_link ($map, $x, $y);
		1786	})->prio (1);
		1787	}
		1788
		1789	=item $player_object->enter_exit ($exit_object)
		1790
		1791	=cut
		1792
		1793	sub parse_random_map_params {
		1794	my ($spec) = @_;
		1795
		1796	my $rmp = { # defaults
		1797	xsize => 10,
		1798	ysize => 10,
		1799	};
		1800
		1801	for (split /\n/, $spec) {
		1802	my ($k, $v) = split /\s+/, $_, 2;
		1803
		1804	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1805	}
		1806
		1807	$rmp
		1808	}
		1809
		1810	sub prepare_random_map {
		1811	my ($exit) = @_;
		1812
		1813	# all this does is basically replace the /! path by
		1814	# a new random map path (?random/...) with a seed
		1815	# that depends on the exit object
		1816
		1817	my $rmp = parse_random_map_params $exit->msg;
		1818
		1819	if ($exit->map) {
		1820	$rmp->{region} = $exit->map->region_name;
		1821	$rmp->{origin_map} = $exit->map->path;
		1822	$rmp->{origin_x} = $exit->x;
		1823	$rmp->{origin_y} = $exit->y;
		1824	}
		1825
		1826	$rmp->{random_seed} \|\|= $exit->random_seed;
		1827
		1828	my $data = cf::to_json $rmp;
		1829	my $md5 = Digest::MD5::md5_hex $data;
		1830
		1831	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY \| O_CREAT, 0666) {
		1832	aio_write $fh, 0, (length $data), $data, 0;
		1833
		1834	$exit->slaying ("?random/$md5");
		1835	$exit->msg (undef);
		1836	}
		1837	}
		1838
		1839	sub cf::object::player::enter_exit {
		1840	my ($self, $exit) = @_;
		1841
		1842	return unless $self->type == cf::PLAYER;
		1843
		1844	$self->enter_link;
		1845
		1846	(async {
		1847	$self->deactivate_recursive; # just to be sure
		1848	unless (eval {
		1849	prepare_random_map $exit
		1850	if $exit->slaying eq "/!";
		1851
		1852	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1853	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1854
		1855	1;
		1856	}) {
		1857	$self->message ("Something went wrong deep within the crossfire server. "
		1858	. "I'll try to bring you back to the map you were before. "
		1859	. "Please report this to the dungeon master!",
		1860	cf::NDI_UNIQUE \| cf::NDI_RED);
		1861
		1862	warn "ERROR in enter_exit: $@";
		1863	$self->leave_link;
		1864	}
		1865	})->prio (1);
		1866	}
		1867
1073	=head3 cf::client	1868	=head3 cf::client
1074		1869
1075	=over 4	1870	=over 4
1076		1871
1077	=item $client->send_drawinfo ($text, $flags)	1872	=item $client->send_drawinfo ($text, $flags)
…		…
1120	on_reply => sub {	1915	on_reply => sub {
1121	my ($ns, $msg) = @_;	1916	my ($ns, $msg) = @_;
1122		1917
1123	# this weird shuffling is so that direct followup queries	1918	# this weird shuffling is so that direct followup queries
1124	# get handled first	1919	# get handled first
1125	my $queue = delete $ns->{query_queue};	1920	my $queue = delete $ns->{query_queue}
		1921	or return; # be conservative, not sure how that can happen, but we saw a crash here
1126		1922
1127	(shift @$queue)->[1]->($msg);	1923	(shift @$queue)->[1]->($msg);
1128		1924
1129	push @{ $ns->{query_queue} }, @$queue;	1925	push @{ $ns->{query_queue} }, @$queue;
1130		1926
…		…
1136	}	1932	}
1137	}	1933	}
1138	},	1934	},
1139	);	1935	);
1140		1936
1141	=item $client->coro (\&cb)	1937	=item $client->async (\&cb)
1142		1938
1143	Create a new coroutine, running the specified callback. The coroutine will	1939	Create a new coroutine, running the specified callback. The coroutine will
1144	be automatically cancelled when the client gets destroyed (e.g. on logout,	1940	be automatically cancelled when the client gets destroyed (e.g. on logout,
1145	or loss of connection).	1941	or loss of connection).
1146		1942
1147	=cut	1943	=cut
1148		1944
1149	sub cf::client::coro {	1945	sub cf::client::async {
1150	my ($self, $cb) = @_;	1946	my ($self, $cb) = @_;
1151		1947
1152	my $coro; $coro = async {	1948	my $coro = &Coro::async ($cb);
1153	eval {
1154	$cb->();
1155	};
1156	warn $@ if $@;
1157	};
1158		1949
1159	$coro->on_destroy (sub {	1950	$coro->on_destroy (sub {
1160	delete $self->{_coro}{$coro+0};	1951	delete $self->{_coro}{$coro+0};
1161	});	1952	});
1162		1953
…		…
1334		2125
1335	{	2126	{
1336	my $path = cf::localdir . "/database.pst";	2127	my $path = cf::localdir . "/database.pst";
1337		2128
1338	sub db_load() {	2129	sub db_load() {
1339	warn "loading database $path\n";#d# remove later
1340	$DB = stat $path ? Storable::retrieve $path : { };	2130	$DB = stat $path ? Storable::retrieve $path : { };
1341	}	2131	}
1342		2132
1343	my $pid;	2133	my $pid;
1344		2134
1345	sub db_save() {	2135	sub db_save() {
1346	warn "saving database $path\n";#d# remove later
1347	waitpid $pid, 0 if $pid;	2136	waitpid $pid, 0 if $pid;
1348	if (0 == ($pid = fork)) {	2137	if (0 == ($pid = fork)) {
1349	$DB->{_meta}{version} = 1;	2138	$DB->{_meta}{version} = 1;
1350	Storable::nstore $DB, "$path~";	2139	Storable::nstore $DB, "$path~";
1351	rename "$path~", $path;	2140	rename "$path~", $path;
…		…
1399	open my $fh, "<:utf8", cf::confdir . "/config"	2188	open my $fh, "<:utf8", cf::confdir . "/config"
1400	or return;	2189	or return;
1401		2190
1402	local $/;	2191	local $/;
1403	*CFG = YAML::Syck::Load <$fh>;	2192	*CFG = YAML::Syck::Load <$fh>;
		2193
		2194	$EMERGENCY_POSITION = $CFG{emergency_position} \|\| ["/world/world_105_115", 5, 37];
		2195
		2196	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2197	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2198
		2199	if (exists $CFG{mlockall}) {
		2200	eval {
		2201	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2202	and die "WARNING: m(un)lockall failed: $!\n";
		2203	};
		2204	warn $@ if $@;
		2205	}
1404	}	2206	}
1405		2207
1406	sub main {	2208	sub main {
1407	# we must not ever block the main coroutine	2209	# we must not ever block the main coroutine
1408	local $Coro::idle = sub {	2210	local $Coro::idle = sub {
1409	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2211	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1410	(Coro::unblock_sub {
1411	Event::one_event;	2212	async { Event::one_event };
1412	})->();
1413	};	2213	};
1414		2214
1415	cfg_load;	2215	cfg_load;
1416	db_load;	2216	db_load;
1417	load_extensions;	2217	load_extensions;
1418	Event::loop;	2218	Event::loop;
1419	}	2219	}
1420		2220
1421	#############################################################################	2221	#############################################################################
1422	# initialisation	2222	# initialisation and cleanup
1423		2223
		2224	# install some emergency cleanup handlers
		2225	BEGIN {
		2226	for my $signal (qw(INT HUP TERM)) {
		2227	Event->signal (
		2228	data => WF_AUTOCANCEL,
		2229	signal => $signal,
		2230	cb => sub {
		2231	cf::cleanup "SIG$signal";
		2232	},
		2233	);
		2234	}
		2235	}
		2236
		2237	sub emergency_save() {
		2238	my $freeze_guard = cf::freeze_mainloop;
		2239
		2240	warn "enter emergency perl save\n";
		2241
		2242	cf::sync_job {
		2243	# use a peculiar iteration method to avoid tripping on perl
		2244	# refcount bugs in for. also avoids problems with players
		2245	# and maps saved/destroyed asynchronously.
		2246	warn "begin emergency player save\n";
		2247	for my $login (keys %cf::PLAYER) {
		2248	my $pl = $cf::PLAYER{$login} or next;
		2249	$pl->valid or next;
		2250	$pl->save;
		2251	}
		2252	warn "end emergency player save\n";
		2253
		2254	warn "begin emergency map save\n";
		2255	for my $path (keys %cf::MAP) {
		2256	my $map = $cf::MAP{$path} or next;
		2257	$map->valid or next;
		2258	$map->save;
		2259	}
		2260	warn "end emergency map save\n";
		2261	};
		2262
		2263	warn "leave emergency perl save\n";
		2264	}
		2265
1424	sub perl_reload() {	2266	sub reload() {
1425	# can/must only be called in main	2267	# can/must only be called in main
1426	if ($Coro::current != $Coro::main) {	2268	if ($Coro::current != $Coro::main) {
1427	warn "can only reload from main coroutine\n";	2269	warn "can only reload from main coroutine\n";
1428	return;	2270	return;
1429	}	2271	}
1430		2272
1431	warn "reloading...";	2273	warn "reloading...";
1432		2274
1433	local $FREEZE = 1;	2275	warn "freezing server";
		2276	my $guard = freeze_mainloop;
1434	cf::emergency_save;	2277	cf::emergency_save;
		2278
		2279	warn "sync database to disk";
		2280	cf::db_sync;
		2281	IO::AIO::flush;
1435		2282
1436	eval {	2283	eval {
1437	# if anything goes wrong in here, we should simply crash as we already saved	2284	# if anything goes wrong in here, we should simply crash as we already saved
1438		2285
1439	# cancel all watchers	2286	warn "cancel all watchers";
1440	for (Event::all_watchers) {	2287	for (Event::all_watchers) {
1441	$_->cancel if $_->data & WF_AUTOCANCEL;	2288	$_->cancel if $_->data & WF_AUTOCANCEL;
1442	}	2289	}
1443		2290
1444	# cancel all extension coros	2291	warn "cancel all extension coros";
1445	$_->cancel for values %EXT_CORO;	2292	$_->cancel for values %EXT_CORO;
1446	%EXT_CORO = ();	2293	%EXT_CORO = ();
1447		2294
		2295	warn "remove commands";
		2296	%COMMAND = ();
		2297
		2298	warn "remove ext commands";
		2299	%EXTCMD = ();
		2300
1448	# unload all extensions	2301	warn "unload/nuke all extensions";
1449	for (@exts) {	2302	for my $pkg (@EXTS) {
1450	warn "unloading <$_>";	2303	warn "... unloading $pkg";
1451	unload_extension $_;	2304
		2305	if (my $cb = $pkg->can ("unload")) {
		2306	eval {
		2307	$cb->($pkg);
		2308	1
		2309	} or warn "$pkg unloaded, but with errors: $@";
1452	}	2310	}
1453		2311
		2312	warn "... nuking $pkg";
		2313	Symbol::delete_package $pkg;
		2314	}
		2315
1454	# unload all modules loaded from $LIBDIR	2316	warn "unload all perl modules loaded from $LIBDIR";
1455	while (my ($k, $v) = each %INC) {	2317	while (my ($k, $v) = each %INC) {
1456	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1457		2319
1458	warn "removing <$k>";	2320	warn "removing <$k>";
1459	delete $INC{$k};	2321	delete $INC{$k};
…		…
1466	}	2328	}
1467		2329
1468	Symbol::delete_package $k;	2330	Symbol::delete_package $k;
1469	}	2331	}
1470		2332
1471	# sync database to disk
1472	cf::db_sync;
1473	IO::AIO::flush;
1474
1475	# get rid of safe::, as good as possible	2333	warn "get rid of safe::, as good as possible";
1476	Symbol::delete_package "safe::$_"	2334	Symbol::delete_package "safe::$_"
1477	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2335	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1478		2336
1479	# remove register_script_function callbacks
1480	# TODO
1481
1482	# unload cf.pm "a bit"	2337	warn "unload cf.pm \"a bit\"";
1483	delete $INC{"cf.pm"};	2338	delete $INC{"cf.pm"};
1484		2339
1485	# don't, removes xs symbols, too,	2340	# don't, removes xs symbols, too,
1486	# and global variables created in xs	2341	# and global variables created in xs
1487	#Symbol::delete_package __PACKAGE__;	2342	#Symbol::delete_package __PACKAGE__;
1488		2343
1489	# reload cf.pm
1490	warn "reloading cf.pm";	2344	warn "reloading cf.pm";
1491	require cf;	2345	require cf;
1492	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2346	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1493		2347
1494	# load config and database again	2348	warn "load config and database again";
1495	cf::cfg_load;	2349	cf::cfg_load;
1496	cf::db_load;	2350	cf::db_load;
1497		2351
1498	# load extensions
1499	warn "load extensions";	2352	warn "load extensions";
1500	cf::load_extensions;	2353	cf::load_extensions;
1501		2354
1502	# reattach attachments to objects	2355	warn "reattach attachments to objects/players";
1503	warn "reattach";
1504	_global_reattach;	2356	_global_reattach;
		2357	warn "reattach attachments to maps";
		2358	reattach $_ for values %MAP;
1505	};	2359	};
1506		2360
1507	if ($@) {	2361	if ($@) {
1508	warn $@;	2362	warn $@;
1509	warn "error while reloading, exiting.";	2363	warn "error while reloading, exiting.";
1510	exit 1;	2364	exit 1;
1511	}	2365	}
1512		2366
1513	warn "reloaded successfully";	2367	warn "reloaded";
1514	};	2368	};
1515		2369
1516	#############################################################################
1517
1518	unless ($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	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1527	}
1528
1529	register "<global>", __PACKAGE__;
1530
1531	register_command "perl-reload" => sub {	2370	register_command "reload" => sub {
1532	my ($who, $arg) = @_;	2371	my ($who, $arg) = @_;
1533		2372
1534	if ($who->flag (FLAG_WIZ)) {	2373	if ($who->flag (FLAG_WIZ)) {
1535	$who->message ("start of reload.");	2374	$who->message ("start of reload.");
1536	perl_reload;	2375	reload;
1537	$who->message ("end of reload.");	2376	$who->message ("end of reload.");
1538	}	2377	}
1539	};	2378	};
1540		2379
1541	unshift @INC, $LIBDIR;	2380	unshift @INC, $LIBDIR;
…		…
1544	reentrant => 0,	2383	reentrant => 0,
1545	prio => 0,	2384	prio => 0,
1546	at => $NEXT_TICK \|\| $TICK,	2385	at => $NEXT_TICK \|\| $TICK,
1547	data => WF_AUTOCANCEL,	2386	data => WF_AUTOCANCEL,
1548	cb => sub {	2387	cb => sub {
1549	unless ($FREEZE) {	2388	$NOW = Event::time;
		2389
1550	cf::server_tick; # one server iteration	2390	cf::server_tick; # one server iteration
1551	$RUNTIME += $TICK;	2391	$RUNTIME += $TICK;
1552	}
1553
1554	$NEXT_TICK += $TICK;	2392	$NEXT_TICK += $TICK;
		2393
		2394	$WAIT_FOR_TICK->broadcast;
		2395	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
1555		2396
1556	# if we are delayed by four ticks or more, skip them all	2397	# if we are delayed by four ticks or more, skip them all
1557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2398	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1558		2399
1559	$TICK_WATCHER->at ($NEXT_TICK);	2400	$TICK_WATCHER->at ($NEXT_TICK);
…		…
1581	or warn "ERROR: unable to write runtime file: $!";	2422	or warn "ERROR: unable to write runtime file: $!";
1582	})->();	2423	})->();
1583	},	2424	},
1584	);	2425	);
1585		2426
		2427	END { cf::emergency_save }
		2428
1586	1	2429	1
1587		2430

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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 1.167 by root, Sat Jan 13 23:32:43 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 1.167 by root, Sat Jan 13 23:32:43 2007 UTC