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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC vs.
Revision 1.171 by root, Sun Jan 14 12:24:48 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
…		…
508	our @CB_TYPE = (); # registry for type (cf-object class) based events	503	our @CB_TYPE = (); # registry for type (cf-object class) based events
509	our @CB_MAP = ();	504	our @CB_MAP = ();
510		505
511	my %attachment;	506	my %attachment;
512		507
		508	sub cf::attachable::thawer_merge {
		509	# simply override everything except _meta
		510	local $_[0]{_meta};
		511	%{$_[0]} = %{$_[1]};
		512	}
		513
513	sub _attach_cb($$$$) {	514	sub _attach_cb($$$$) {
514	my ($registry, $event, $prio, $cb) = @_;	515	my ($registry, $event, $prio, $cb) = @_;
515		516
516	use sort 'stable';	517	use sort 'stable';
517		518
…		…
688	# object support	689	# object support
689		690
690	sub reattach {	691	sub reattach {
691	# basically do the same as instantiate, without calling instantiate	692	# basically do the same as instantiate, without calling instantiate
692	my ($obj) = @_;	693	my ($obj) = @_;
		694
		695	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
693		696
694	my $registry = $obj->registry;	697	my $registry = $obj->registry;
695		698
696	@$registry = ();	699	@$registry = ();
697		700
…		…
790	or return;	793	or return;
791		794
792	unless (aio_stat "$filename.pst") {	795	unless (aio_stat "$filename.pst") {
793	(aio_load "$filename.pst", $av) >= 0	796	(aio_load "$filename.pst", $av) >= 0
794	or return;	797	or return;
795	$av = eval { (Storable::thaw <$av>)->{objs} };	798	$av = eval { (Storable::thaw $av)->{objs} };
796	}	799	}
797		800
		801	warn sprintf "loading %s (%d)\n",
		802	$filename, length $data, scalar @{$av \|\| []};#d#
798	return ($data, $av);	803	return ($data, $av);
799	}	804	}
800		805
801	#############################################################################	806	#############################################################################
802	# command handling &c	807	# command handling &c
…		…
827	=cut	832	=cut
828		833
829	sub register_extcmd {	834	sub register_extcmd {
830	my ($name, $cb) = @_;	835	my ($name, $cb) = @_;
831		836
832	my $caller = caller;
833	#warn "registering extcmd '$name' to '$caller'";
834
835	$EXTCMD{$name} = [$cb, $caller];	837	$EXTCMD{$name} = $cb;
836	}	838	}
837		839
838	cf::player->attach (	840	cf::player->attach (
839	on_command => sub {	841	on_command => sub {
840	my ($pl, $name, $params) = @_;	842	my ($pl, $name, $params) = @_;
…		…
853		855
854	my $msg = eval { from_json $buf };	856	my $msg = eval { from_json $buf };
855		857
856	if (ref $msg) {	858	if (ref $msg) {
857	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
858	if (my %reply = $cb->[0]->($pl, $msg)) {	860	if (my %reply = $cb->($pl, $msg)) {
859	$pl->ext_reply ($msg->{msgid}, %reply);	861	$pl->ext_reply ($msg->{msgid}, %reply);
860	}	862	}
861	}	863	}
862	} else {	864	} else {
863	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
865		867
866	cf::override;	868	cf::override;
867	},	869	},
868	);	870	);
869		871
870	sub register {
871	my ($base, $pkg) = @_;
872
873	#TODO
874	}
875
876	sub load_extension {	872	sub load_extension {
877	my ($path) = @_;	873	my ($path) = @_;
878		874
879	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
880	my $base = $1;	876	my $base = $1;
881	my $pkg = $1;	877	my $pkg = $1;
882	$pkg =~ s/[^[:word:]]/_/g;	878	$pkg =~ s/[^[:word:]]/_/g;
883	$pkg = "ext::$pkg";	879	$pkg = "ext::$pkg";
884		880
885	warn "loading '$path' into '$pkg'\n";	881	warn "... loading '$path' into '$pkg'\n";
886		882
887	open my $fh, "<:utf8", $path	883	open my $fh, "<:utf8", $path
888	or die "$path: $!";	884	or die "$path: $!";
889		885
890	my $source =	886	my $source =
891	"package $pkg; use strict; use utf8;\n"	887	"package $pkg; use strict; use utf8;\n"
892	. "#line 1 \"$path\"\n{\n"	888	. "#line 1 \"$path\"\n{\n"
893	. (do { local $/; <$fh> })	889	. (do { local $/; <$fh> })
894	. "\n};\n1";	890	. "\n};\n1";
895		891
896	eval $source	892	unless (eval $source) {
897	or die $@ ? "$path: $@\n"	893	my $msg = $@ ? "$path: $@\n"
898	: "extension disabled.\n";	894	: "extension disabled.\n";
899		895	if ($source =~ /^#!.perl.#.*MANDATORY/m) { # ugly match
900	push @exts, $pkg;	896	warn $@;
901	$ext_pkg{$base} = $pkg;	897	warn "mandatory extension failed to load, exiting.\n";
902		898	exit 1;
903	# no strict 'refs';	899	}
904	# @{"$pkg\::ISA"} = ext::;	900	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	# }	901	}
919		902
920	# remove commands	903	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	}	904	}
945		905
946	sub load_extensions {	906	sub load_extensions {
947	for my $ext (<$LIBDIR/*.ext>) {	907	for my $ext (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	908	next unless -r $ext;
…		…
952	} or warn "$ext not loaded: $@";	912	} or warn "$ext not loaded: $@";
953	}	913	}
954	}	914	}
955		915
956	#############################################################################	916	#############################################################################
957	# load/save/clean perl data associated with a map
958		917
959	*cf::mapsupport::on_clean = sub {	918	=head2 CORE EXTENSIONS
		919
		920	Functions and methods that extend core crossfire objects.
		921
		922	=cut
		923
		924	package cf::player;
		925
		926	use Coro::AIO;
		927
		928	=head3 cf::player
		929
		930	=over 4
		931
		932	=item cf::player::find $login
		933
		934	Returns the given player object, loading it if necessary (might block).
		935
		936	=cut
		937
		938	sub playerdir($) {
		939	cf::localdir
		940	. "/"
		941	. cf::playerdir
		942	. "/"
		943	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		944	}
		945
		946	sub path($) {
		947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		948
		949	(playerdir $login) . "/$login.pl"
		950	}
		951
		952	sub find_active($) {
		953	$cf::PLAYER{$_[0]}
		954	and $cf::PLAYER{$_[0]}->active
		955	and $cf::PLAYER{$_[0]}
		956	}
		957
		958	sub exists($) {
		959	my ($login) = @_;
		960
		961	$cf::PLAYER{$login}
		962	or cf::sync_job { !aio_stat $login }
		963	}
		964
		965	sub find($) {
		966	return $cf::PLAYER{$_[0]} \|\| do {
		967	my $login = $_[0];
		968
		969	my $guard = cf::lock_acquire "user_find:$login";
		970
		971	$cf::PLAYER{$_[0]} \|\| do {
		972	my $pl = load_pl path $login
		973	or return;
		974	$cf::PLAYER{$login} = $pl
		975	}
		976	}
		977	}
		978
		979	sub save($) {
		980	my ($pl) = @_;
		981
		982	return if $pl->{deny_save};
		983
		984	my $path = path $pl;
		985	my $guard = cf::lock_acquire "user_save:$path";
		986
		987	return if $pl->{deny_save};
		988
		989	aio_mkdir playerdir $pl, 0770;
		990	$pl->{last_save} = $cf::RUNTIME;
		991
		992	$pl->save_pl ($path);
		993	Coro::cede;
		994	}
		995
		996	sub new($) {
		997	my ($login) = @_;
		998
		999	my $self = create;
		1000
		1001	$self->ob->name ($login);
		1002	$self->{deny_save} = 1;
		1003
		1004	$cf::PLAYER{$login} = $self;
		1005
		1006	$self
		1007	}
		1008
		1009	=item $pl->quit_character
		1010
		1011	Nukes the player without looking back. If logged in, the connection will
		1012	be destroyed. May block for a long time.
		1013
		1014	=cut
		1015
		1016	sub quit_character {
		1017	my ($pl) = @_;
		1018
		1019	$pl->{deny_save} = 1;
		1020	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1021
		1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1023	$pl->deactivate;
		1024	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1025	$pl->ns->destroy if $pl->ns;
		1026
		1027	my $path = playerdir $pl;
		1028	my $temp = "$path~$cf::RUNTIME~deleting~";
		1029	aio_rename $path, $temp;
		1030	delete $cf::PLAYER{$pl->ob->name};
		1031	$pl->destroy;
		1032	IO::AIO::aio_rmtree $temp;
		1033	}
		1034
		1035	=item cf::player::list_logins
		1036
		1037	Returns am arrayref of all valid playernames in the system, can take a
		1038	while and may block, so not sync_job-capable, ever.
		1039
		1040	=cut
		1041
		1042	sub list_logins {
		1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1044	or return [];
		1045
		1046	my @logins;
		1047
		1048	for my $login (@$dirs) {
		1049	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1050	aio_read $fh, 0, 512, my $buf, 0 or next;
		1051	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1052
		1053	utf8::decode $login;
		1054	push @logins, $login;
		1055	}
		1056
		1057	\@logins
		1058	}
		1059
		1060	=item $player->maps
		1061
		1062	Returns an arrayref of map paths that are private for this
		1063	player. May block.
		1064
		1065	=cut
		1066
		1067	sub maps($) {
		1068	my ($pl) = @_;
		1069
		1070	my $files = aio_readdir playerdir $pl
		1071	or return;
		1072
		1073	my @paths;
		1074
		1075	for (@$files) {
		1076	utf8::decode $_;
		1077	next if /\.(?:pl\|pst)$/;
		1078	next unless /^$PATH_SEP/o;
		1079
		1080	s/\.map$//;
		1081	push @paths, "~" . $pl->ob->name . "/" . $_;
		1082	}
		1083
		1084	\@paths
		1085	}
		1086
		1087	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1088
		1089	Sends an ext reply to the player.
		1090
		1091	=cut
		1092
		1093	sub ext_reply($$$%) {
		1094	my ($self, $id, %msg) = @_;
		1095
		1096	$msg{msgid} = $id;
		1097
		1098	$self->send ("ext " . cf::to_json \%msg);
		1099	}
		1100
		1101	package cf;
		1102
		1103	=back
		1104
		1105
		1106	=head3 cf::map
		1107
		1108	=over 4
		1109
		1110	=cut
		1111
		1112	package cf::map;
		1113
		1114	use Fcntl;
		1115	use Coro::AIO;
		1116
		1117	use overload
		1118	'""' => \&as_string;
		1119
		1120	our $MAX_RESET = 3600;
		1121	our $DEFAULT_RESET = 3000;
		1122
		1123	sub generate_random_map {
		1124	my ($self, $rmp) = @_;
		1125
		1126	# mit "rum" bekleckern, nicht
		1127	$self->_create_random_map (
		1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1131	$rmp->{exit_on_final_map},
		1132	$rmp->{xsize}, $rmp->{ysize},
		1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1138	(cf::region::find $rmp->{region}), $rmp->{custom}
		1139	)
		1140	}
		1141
		1142	sub register {
		1143	my (undef, $regex) = @_;
		1144	my $pkg = caller;
		1145
		1146	no strict;
		1147	push @{"$pkg\::ISA"}, __PACKAGE__;
		1148
		1149	$EXT_MAP{$pkg} = qr<$regex>;
		1150	}
		1151
		1152	# also paths starting with '/'
		1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};
		1154
		1155	sub thawer_merge {
		1156	# we have to keep some variables in memory intact
		1157	local $_[0]{path};
		1158	local $_[0]{deny_save};
		1159	local $_[0]{deny_reset};
		1160
		1161	$_[0]->SUPER::thawer_merge ($_[1]);
		1162	}
		1163
		1164	sub normalise {
		1165	my ($path, $base) = @_;
		1166
		1167	# map plan:
		1168	#
		1169	# /! non-realised random map exit (special hack!)
		1170	# {... are special paths that are not being touched
		1171	# ?xxx/... are special absolute paths
		1172	# ?random/... random maps
		1173	# /... normal maps
		1174	# ~user/... per-player map of a specific user
		1175
		1176	$path =~ s/$PATH_SEP/\//go;
		1177
		1178	# treat it as relative path if it starts with
		1179	# something that looks reasonable
		1180	if ($path =~ m{^(?:\./\|\.\./\|\w)}) {
		1181	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1182
		1183	$base =~ s{[^/]+/?$}{};
		1184	$path = "$base/$path";
		1185	}
		1186
		1187	for ($path) {
		1188	redo if s{//}{/};
		1189	redo if s{/\.?/}{/};
		1190	redo if s{/[^/]+/\.\./}{/};
		1191	}
		1192
		1193	$path
		1194	}
		1195
		1196	sub new_from_path {
		1197	my (undef, $path, $base) = @_;
		1198
		1199	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1200
		1201	$path = normalise $path, $base;
		1202
		1203	for my $pkg (keys %EXT_MAP) {
		1204	if ($path =~ $EXT_MAP{$pkg}) {
		1205	my $self = bless cf::map::new, $pkg;
		1206	$self->{path} = $path; $self->path ($path);
		1207	$self->init; # pass $1 etc.
		1208	return $self;
		1209	}
		1210	}
		1211
		1212	Carp::carp "unable to resolve path '$path'.";
		1213	()
		1214	}
		1215
		1216	sub init {
		1217	my ($self) = @_;
		1218
		1219	$self
		1220	}
		1221
		1222	sub as_string {
		1223	my ($self) = @_;
		1224
		1225	"$self->{path}"
		1226	}
		1227
		1228	# the displayed name, this is a one way mapping
		1229	sub visible_name {
		1230	&as_string
		1231	}
		1232
		1233	# the original (read-only) location
		1234	sub load_path {
		1235	my ($self) = @_;
		1236
		1237	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1238	}
		1239
		1240	# the temporary/swap location
		1241	sub save_path {
		1242	my ($self) = @_;
		1243
		1244	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1245	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1246	}
		1247
		1248	# the unique path, undef == no special unique path
		1249	sub uniq_path {
		1250	my ($self) = @_;
		1251
		1252	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1253	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1254	}
		1255
		1256	# and all this just because we cannot iterate over
		1257	# all maps in C++...
		1258	sub change_all_map_light {
		1259	my ($change) = @_;
		1260
		1261	$_->change_map_light ($change)
		1262	for grep $_->outdoor, values %cf::MAP;
		1263	}
		1264
		1265	sub unlink_save {
		1266	my ($self) = @_;
		1267
		1268	utf8::encode (my $save = $self->save_path);
		1269	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1270	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1271	}
		1272
		1273	sub load_header_from($) {
		1274	my ($self, $path) = @_;
		1275
		1276	utf8::encode $path;
		1277	aio_open $path, O_RDONLY, 0
		1278	or return;
		1279
		1280	$self->_load_header ($path)
		1281	or return;
		1282
		1283	$self->{load_path} = $path;
		1284
		1285	1
		1286	}
		1287
		1288	sub load_orig {
		1289	my ($self) = @_;
		1290
		1291	$self->load_header_from ($self->load_path)
		1292	}
		1293
		1294	sub load_temp {
		1295	my ($self) = @_;
		1296
		1297	$self->load_header_from ($self->save_path)
		1298	}
		1299
		1300	sub load_header {
		1301	my ($self) = @_;
		1302
		1303	if ($self->load_temp) {
		1304	$self->last_access ((delete $self->{last_access})
		1305	\|\| $cf::RUNTIME); #d#
		1306	# safety
		1307	$self->{instantiate_time} = $cf::RUNTIME
		1308	if $self->{instantiate_time} > $cf::RUNTIME;
		1309	} else {
		1310	$self->load_orig
		1311	or return;
		1312
		1313	$self->{load_original} = 1;
		1314	$self->{instantiate_time} = $cf::RUNTIME;
		1315	$self->last_access ($cf::RUNTIME);
		1316	$self->instantiate;
		1317	}
		1318
		1319	1
		1320	}
		1321
		1322	sub find;
		1323	sub find {
		1324	my ($path, $origin) = @_;
		1325
		1326	$path = normalise $path, $origin && $origin->path;
		1327
		1328	cf::lock_wait "map_find:$path";
		1329
		1330	$cf::MAP{$path} \|\| do {
		1331	my $guard = cf::lock_acquire "map_find:$path";
		1332	my $map = new_from_path cf::map $path
		1333	or return;
		1334
		1335	$map->{last_save} = $cf::RUNTIME;
		1336
		1337	$map->load_header
		1338	or return;
		1339
		1340	if ($map->should_reset) {
		1341	$cf::WAIT_FOR_TICK->wait;
		1342	$map->reset;
		1343	undef $guard;
		1344	$map = find $path
		1345	or return;
		1346	}
		1347
		1348	$cf::MAP{$path} = $map
		1349	}
		1350	}
		1351
		1352	sub load {
		1353	my ($self) = @_;
		1354
		1355	my $path = $self->{path};
		1356	my $guard = cf::lock_acquire "map_load:$path";
		1357
		1358	return if $self->in_memory != cf::MAP_SWAPPED;
		1359
		1360	$self->in_memory (cf::MAP_LOADING);
		1361
		1362	$self->alloc;
		1363	$self->_load_objects ($self->{load_path}, 1)
		1364	or return;
		1365
		1366	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1367	if delete $self->{load_original};
		1368
		1369	if (my $uniq = $self->uniq_path) {
		1370	utf8::encode $uniq;
		1371	if (aio_open $uniq, O_RDONLY, 0) {
		1372	$self->clear_unique_items;
		1373	$self->_load_objects ($uniq, 0);
		1374	}
		1375	}
		1376
		1377	Coro::cede;
		1378
		1379	# now do the right thing for maps
		1380	$self->link_multipart_objects;
		1381
		1382	unless ($self->{deny_activate}) {
		1383	$self->decay_objects;
		1384	$self->fix_auto_apply;
		1385	$self->update_buttons;
		1386	Coro::cede;
		1387	$self->set_darkness_map;
		1388	$self->difficulty ($self->estimate_difficulty)
		1389	unless $self->difficulty;
		1390	Coro::cede;
		1391	$self->activate;
		1392	}
		1393
		1394	$self->in_memory (cf::MAP_IN_MEMORY);
		1395	}
		1396
		1397	sub customise_for {
		1398	my ($self, $ob) = @_;
		1399
		1400	return find "~" . $ob->name . "/" . $self->{path}
		1401	if $self->per_player;
		1402
		1403	$self
		1404	}
		1405
		1406	# find and load all maps in the 3x3 area around a map
		1407	sub load_diag {
960	my ($map) = @_;	1408	my ($map) = @_;
961		1409
962	my $path = $map->tmpname;	1410	my @diag; # diagonal neighbours
963	defined $path or return;
964		1411
965	unlink "$path.pst";	1412	for (0 .. 3) {
		1413	my $neigh = $map->tile_path ($_)
		1414	or next;
		1415	$neigh = find $neigh, $map
		1416	or next;
		1417	$neigh->load;
		1418
		1419	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1420	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1421	}
		1422
		1423	for (@diag) {
		1424	my $neigh = find @$_
		1425	or next;
		1426	$neigh->load;
		1427	}
		1428	}
		1429
		1430	sub find_sync {
		1431	my ($path, $origin) = @_;
		1432
		1433	cf::sync_job { find $path, $origin }
		1434	}
		1435
		1436	sub do_load_sync {
		1437	my ($map) = @_;
		1438
		1439	cf::sync_job { $map->load };
		1440	}
		1441
		1442	our %MAP_PREFETCH;
		1443	our $MAP_PREFETCHER = Coro::async {
		1444	while () {
		1445	for my $path (keys %MAP_PREFETCH) {
		1446	my $map = find $path
		1447	or next;
		1448	$map->load;
		1449
		1450	delete $MAP_PREFETCH{$path};
		1451	}
		1452	Coro::schedule;
		1453	}
966	};	1454	};
967		1455
968	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1456	sub find_async {
		1457	my ($path, $origin) = @_;
969		1458
970	#############################################################################	1459	$path = normalise $path, $origin && $origin->{path};
971	# load/save perl data associated with player->ob objects
972		1460
973	sub all_objects(@) {	1461	if (my $map = $cf::MAP{$path}) {
974	@_, map all_objects ($_->inv), @_	1462	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	},	1463	}
990	);
991		1464
992	#############################################################################	1465	$MAP_PREFETCH{$path} = 0;
		1466	$MAP_PREFETCHER->ready;
993		1467
994	=head2 CORE EXTENSIONS	1468	()
		1469	}
995		1470
996	Functions and methods that extend core crossfire objects.	1471	sub save {
		1472	my ($self) = @_;
997		1473
998	=head3 cf::player	1474	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1475
		1476	$self->{last_save} = $cf::RUNTIME;
		1477
		1478	return unless $self->dirty;
		1479
		1480	my $save = $self->save_path; utf8::encode $save;
		1481	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1482
		1483	$self->{load_path} = $save;
		1484
		1485	return if $self->{deny_save};
		1486
		1487	local $self->{last_access} = $self->last_access;#d#
		1488
		1489	cf::async {
		1490	$_->contr->save for $self->players;
		1491	};
		1492
		1493	if ($uniq) {
		1494	$self->_save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS);
		1495	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1496	} else {
		1497	$self->_save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS \| cf::IO_UNIQUES);
		1498	}
		1499	}
		1500
		1501	sub swap_out {
		1502	my ($self) = @_;
		1503
		1504	# save first because save cedes
		1505	$self->save;
		1506
		1507	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1508
		1509	return if $self->players;
		1510	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1511	return if $self->{deny_save};
		1512
		1513	$self->clear;
		1514	$self->in_memory (cf::MAP_SWAPPED);
		1515	}
		1516
		1517	sub reset_at {
		1518	my ($self) = @_;
		1519
		1520	# TODO: safety, remove and allow resettable per-player maps
		1521	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1522	return 1e99 if $self->{deny_reset};
		1523
		1524	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1525	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
		1526
		1527	$time + $to
		1528	}
		1529
		1530	sub should_reset {
		1531	my ($self) = @_;
		1532
		1533	$self->reset_at <= $cf::RUNTIME
		1534	}
		1535
		1536	sub rename {
		1537	my ($self, $new_path) = @_;
		1538
		1539	normalise $new_path;
		1540
		1541	$self->unlink_save;
		1542
		1543	delete $cf::MAP{$self->path};
		1544	$self->{path} = $new_path; $self->path ($self->{path});
		1545	$cf::MAP{$self->path} = $self;
		1546
		1547	$self->save;
		1548	}
		1549
		1550	sub reset {
		1551	my ($self) = @_;
		1552
		1553	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1554
		1555	return if $self->players;
		1556	return if $self->isa ("ext::map_per_player");#d#
		1557
		1558	warn "resetting map ", $self->path;#d#
		1559
		1560	delete $cf::MAP{$self->path};
		1561
		1562	$self->in_memory (cf::MAP_SWAPPED);
		1563	$self->clear;
		1564
		1565	$_->clear_links_to ($self) for values %cf::MAP;
		1566
		1567	$self->unlink_save;
		1568	$self->destroy;
		1569	}
		1570
		1571	my $nuke_counter = "aaaa";
		1572
		1573	sub nuke {
		1574	my ($self) = @_;
		1575
		1576	$self->{deny_save} = 1;
		1577	$self->reset_timeout (1);
		1578	$self->rename ("{nuke}/" . ($nuke_counter++));
		1579	$self->reset; # polite request, might not happen
		1580	}
		1581
		1582	=item cf::map::unique_maps
		1583
		1584	Returns an arrayref of paths of all shared maps that have
		1585	instantiated unique items. May block.
		1586
		1587	=cut
		1588
		1589	sub unique_maps() {
		1590	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1591	or return;
		1592
		1593	my @paths;
		1594
		1595	for (@$files) {
		1596	utf8::decode $_;
		1597	next if /\.pst$/;
		1598	next unless /^$PATH_SEP/o;
		1599
		1600	s/\.map$//;
		1601	push @paths, $_;
		1602	}
		1603
		1604	\@paths
		1605	}
		1606
		1607	package cf;
		1608
		1609	=back
		1610
		1611	=head3 cf::object
		1612
		1613	=cut
		1614
		1615	package cf::object;
999		1616
1000	=over 4	1617	=over 4
1001		1618
1002	=item cf::player::exists $login	1619	=item $ob->inv_recursive
1003		1620
1004	Returns true when the given account exists.	1621	Returns the inventory of the object _and_ their inventories, recursively.
1005		1622
1006	=cut	1623	=cut
1007		1624
1008	sub cf::player::exists($) {	1625	sub inv_recursive_;
1009	cf::player::find $_[0]	1626	sub inv_recursive_ {
1010	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1627	map { $_, inv_recursive_ $_->inv } @_
1011	}	1628	}
1012		1629
1013	=item $player->ext_reply ($msgid, $msgtype, %msg)	1630	sub inv_recursive {
1014		1631	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	}	1632	}
		1633
		1634	package cf;
1026		1635
1027	=back	1636	=back
1028		1637
1029	=head3 cf::object::player	1638	=head3 cf::object::player
1030		1639
…		…
1068	(ref $cf::CFG{"may_$access"}	1677	(ref $cf::CFG{"may_$access"}
1069	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1678	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1070	: $cf::CFG{"may_$access"})	1679	: $cf::CFG{"may_$access"})
1071	}	1680	}
1072		1681
		1682	=item $player_object->enter_link
		1683
		1684	Freezes the player and moves him/her to a special map (C<{link}>).
		1685
		1686	The player should be reasonably safe there for short amounts of time. You
		1687	I<MUST> call C<leave_link> as soon as possible, though.
		1688
		1689	Will never block.
		1690
		1691	=item $player_object->leave_link ($map, $x, $y)
		1692
		1693	Moves the player out of the special C<{link}> map onto the specified
		1694	map. If the map is not valid (or omitted), the player will be moved back
		1695	to the location he/she was before the call to C<enter_link>, or, if that
		1696	fails, to the emergency map position.
		1697
		1698	Might block.
		1699
		1700	=cut
		1701
		1702	sub link_map {
		1703	unless ($LINK_MAP) {
		1704	$LINK_MAP = cf::map::find "{link}"
		1705	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1706	$LINK_MAP->load;
		1707	}
		1708
		1709	$LINK_MAP
		1710	}
		1711
		1712	sub cf::object::player::enter_link {
		1713	my ($self) = @_;
		1714
		1715	$self->deactivate_recursive;
		1716
		1717	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1718
		1719	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
		1720	if $self->map;
		1721
		1722	$self->enter_map ($LINK_MAP \|\| link_map, 20, 20);
		1723	}
		1724
		1725	sub cf::object::player::leave_link {
		1726	my ($self, $map, $x, $y) = @_;
		1727
		1728	my $link_pos = delete $self->{_link_pos};
		1729
		1730	unless ($map) {
		1731	# restore original map position
		1732	($map, $x, $y) = @{ $link_pos \|\| [] };
		1733	$map = cf::map::find $map;
		1734
		1735	unless ($map) {
		1736	($map, $x, $y) = @$EMERGENCY_POSITION;
		1737	$map = cf::map::find $map
		1738	or die "FATAL: cannot load emergency map\n";
		1739	}
		1740	}
		1741
		1742	($x, $y) = (-1, -1)
		1743	unless (defined $x) && (defined $y);
		1744
		1745	# use -1 or undef as default coordinates, not 0, 0
		1746	($x, $y) = ($map->enter_x, $map->enter_y)
		1747	if $x <=0 && $y <= 0;
		1748
		1749	$map->load;
		1750	$map->load_diag;
		1751
		1752	return unless $self->contr->active;
		1753	$self->activate_recursive;
		1754	$self->enter_map ($map, $x, $y);
		1755	}
		1756
		1757	cf::player->attach (
		1758	on_logout => sub {
		1759	my ($pl) = @_;
		1760
		1761	# abort map switching before logout
		1762	if ($pl->ob->{_link_pos}) {
		1763	cf::sync_job {
		1764	$pl->ob->leave_link
		1765	};
		1766	}
		1767	},
		1768	on_login => sub {
		1769	my ($pl) = @_;
		1770
		1771	# try to abort aborted map switching on player login :)
		1772	# should happen only on crashes
		1773	if ($pl->ob->{_link_pos}) {
		1774	$pl->ob->enter_link;
		1775	(async {
		1776	# we need this sleep as the login has a concurrent enter_exit running
		1777	# and this sleep increases chances of the player not ending up in scorn
		1778	$pl->ob->reply (undef,
		1779	"There was an internal problem at your last logout, "
		1780	. "the server will try to bring you to your intended destination in a second.",
		1781	cf::NDI_RED);
		1782	Coro::Timer::sleep 1;
		1783	$pl->ob->leave_link;
		1784	})->prio (2);
		1785	}
		1786	},
		1787	);
		1788
		1789	=item $player_object->goto ($path, $x, $y)
		1790
		1791	=cut
		1792
		1793	sub cf::object::player::goto {
		1794	my ($self, $path, $x, $y) = @_;
		1795
		1796	$self->enter_link;
		1797
		1798	(async {
		1799	my $map = cf::map::find $path;
		1800	$map = $map->customise_for ($self) if $map;
		1801
		1802	# warn "entering ", $map->path, " at ($x, $y)\n"
		1803	# if $map;
		1804
		1805	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		1806
		1807	$self->leave_link ($map, $x, $y);
		1808	})->prio (1);
		1809	}
		1810
		1811	=item $player_object->enter_exit ($exit_object)
		1812
		1813	=cut
		1814
		1815	sub parse_random_map_params {
		1816	my ($spec) = @_;
		1817
		1818	my $rmp = { # defaults
		1819	xsize => 10,
		1820	ysize => 10,
		1821	};
		1822
		1823	for (split /\n/, $spec) {
		1824	my ($k, $v) = split /\s+/, $_, 2;
		1825
		1826	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1827	}
		1828
		1829	$rmp
		1830	}
		1831
		1832	sub prepare_random_map {
		1833	my ($exit) = @_;
		1834
		1835	# all this does is basically replace the /! path by
		1836	# a new random map path (?random/...) with a seed
		1837	# that depends on the exit object
		1838
		1839	my $rmp = parse_random_map_params $exit->msg;
		1840
		1841	if ($exit->map) {
		1842	$rmp->{region} = $exit->map->region_name;
		1843	$rmp->{origin_map} = $exit->map->path;
		1844	$rmp->{origin_x} = $exit->x;
		1845	$rmp->{origin_y} = $exit->y;
		1846	}
		1847
		1848	$rmp->{random_seed} \|\|= $exit->random_seed;
		1849
		1850	my $data = cf::to_json $rmp;
		1851	my $md5 = Digest::MD5::md5_hex $data;
		1852
		1853	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY \| O_CREAT, 0666) {
		1854	aio_write $fh, 0, (length $data), $data, 0;
		1855
		1856	$exit->slaying ("?random/$md5");
		1857	$exit->msg (undef);
		1858	}
		1859	}
		1860
		1861	sub cf::object::player::enter_exit {
		1862	my ($self, $exit) = @_;
		1863
		1864	return unless $self->type == cf::PLAYER;
		1865
		1866	$self->enter_link;
		1867
		1868	(async {
		1869	$self->deactivate_recursive; # just to be sure
		1870	unless (eval {
		1871	prepare_random_map $exit
		1872	if $exit->slaying eq "/!";
		1873
		1874	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1875	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1876
		1877	1;
		1878	}) {
		1879	$self->message ("Something went wrong deep within the crossfire server. "
		1880	. "I'll try to bring you back to the map you were before. "
		1881	. "Please report this to the dungeon master!",
		1882	cf::NDI_UNIQUE \| cf::NDI_RED);
		1883
		1884	warn "ERROR in enter_exit: $@";
		1885	$self->leave_link;
		1886	}
		1887	})->prio (1);
		1888	}
		1889
1073	=head3 cf::client	1890	=head3 cf::client
1074		1891
1075	=over 4	1892	=over 4
1076		1893
1077	=item $client->send_drawinfo ($text, $flags)	1894	=item $client->send_drawinfo ($text, $flags)
…		…
1120	on_reply => sub {	1937	on_reply => sub {
1121	my ($ns, $msg) = @_;	1938	my ($ns, $msg) = @_;
1122		1939
1123	# this weird shuffling is so that direct followup queries	1940	# this weird shuffling is so that direct followup queries
1124	# get handled first	1941	# get handled first
1125	my $queue = delete $ns->{query_queue};	1942	my $queue = delete $ns->{query_queue}
		1943	or return; # be conservative, not sure how that can happen, but we saw a crash here
1126		1944
1127	(shift @$queue)->[1]->($msg);	1945	(shift @$queue)->[1]->($msg);
1128		1946
1129	push @{ $ns->{query_queue} }, @$queue;	1947	push @{ $ns->{query_queue} }, @$queue;
1130		1948
…		…
1136	}	1954	}
1137	}	1955	}
1138	},	1956	},
1139	);	1957	);
1140		1958
1141	=item $client->coro (\&cb)	1959	=item $client->async (\&cb)
1142		1960
1143	Create a new coroutine, running the specified callback. The coroutine will	1961	Create a new coroutine, running the specified callback. The coroutine will
1144	be automatically cancelled when the client gets destroyed (e.g. on logout,	1962	be automatically cancelled when the client gets destroyed (e.g. on logout,
1145	or loss of connection).	1963	or loss of connection).
1146		1964
1147	=cut	1965	=cut
1148		1966
1149	sub cf::client::coro {	1967	sub cf::client::async {
1150	my ($self, $cb) = @_;	1968	my ($self, $cb) = @_;
1151		1969
1152	my $coro; $coro = async {	1970	my $coro = &Coro::async ($cb);
1153	eval {
1154	$cb->();
1155	};
1156	warn $@ if $@;
1157	};
1158		1971
1159	$coro->on_destroy (sub {	1972	$coro->on_destroy (sub {
1160	delete $self->{_coro}{$coro+0};	1973	delete $self->{_coro}{$coro+0};
1161	});	1974	});
1162		1975
…		…
1334		2147
1335	{	2148	{
1336	my $path = cf::localdir . "/database.pst";	2149	my $path = cf::localdir . "/database.pst";
1337		2150
1338	sub db_load() {	2151	sub db_load() {
1339	warn "loading database $path\n";#d# remove later
1340	$DB = stat $path ? Storable::retrieve $path : { };	2152	$DB = stat $path ? Storable::retrieve $path : { };
1341	}	2153	}
1342		2154
1343	my $pid;	2155	my $pid;
1344		2156
1345	sub db_save() {	2157	sub db_save() {
1346	warn "saving database $path\n";#d# remove later
1347	waitpid $pid, 0 if $pid;	2158	waitpid $pid, 0 if $pid;
1348	if (0 == ($pid = fork)) {	2159	if (0 == ($pid = fork)) {
1349	$DB->{_meta}{version} = 1;	2160	$DB->{_meta}{version} = 1;
1350	Storable::nstore $DB, "$path~";	2161	Storable::nstore $DB, "$path~";
1351	rename "$path~", $path;	2162	rename "$path~", $path;
…		…
1399	open my $fh, "<:utf8", cf::confdir . "/config"	2210	open my $fh, "<:utf8", cf::confdir . "/config"
1400	or return;	2211	or return;
1401		2212
1402	local $/;	2213	local $/;
1403	*CFG = YAML::Syck::Load <$fh>;	2214	*CFG = YAML::Syck::Load <$fh>;
		2215
		2216	$EMERGENCY_POSITION = $CFG{emergency_position} \|\| ["/world/world_105_115", 5, 37];
		2217
		2218	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2219	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2220
		2221	if (exists $CFG{mlockall}) {
		2222	eval {
		2223	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2224	and die "WARNING: m(un)lockall failed: $!\n";
		2225	};
		2226	warn $@ if $@;
		2227	}
1404	}	2228	}
1405		2229
1406	sub main {	2230	sub main {
1407	# we must not ever block the main coroutine	2231	# we must not ever block the main coroutine
1408	local $Coro::idle = sub {	2232	local $Coro::idle = sub {
1409	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2233	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1410	(Coro::unblock_sub {
1411	Event::one_event;	2234	async { Event::one_event };
1412	})->();
1413	};	2235	};
1414		2236
1415	cfg_load;	2237	cfg_load;
1416	db_load;	2238	db_load;
1417	load_extensions;	2239	load_extensions;
1418	Event::loop;	2240	Event::loop;
1419	}	2241	}
1420		2242
1421	#############################################################################	2243	#############################################################################
1422	# initialisation	2244	# initialisation and cleanup
1423		2245
		2246	# install some emergency cleanup handlers
		2247	BEGIN {
		2248	for my $signal (qw(INT HUP TERM)) {
		2249	Event->signal (
		2250	data => WF_AUTOCANCEL,
		2251	signal => $signal,
		2252	cb => sub {
		2253	cf::cleanup "SIG$signal";
		2254	},
		2255	);
		2256	}
		2257	}
		2258
		2259	sub emergency_save() {
		2260	my $freeze_guard = cf::freeze_mainloop;
		2261
		2262	warn "enter emergency perl save\n";
		2263
		2264	cf::sync_job {
		2265	# use a peculiar iteration method to avoid tripping on perl
		2266	# refcount bugs in for. also avoids problems with players
		2267	# and maps saved/destroyed asynchronously.
		2268	warn "begin emergency player save\n";
		2269	for my $login (keys %cf::PLAYER) {
		2270	my $pl = $cf::PLAYER{$login} or next;
		2271	$pl->valid or next;
		2272	$pl->save;
		2273	}
		2274	warn "end emergency player save\n";
		2275
		2276	warn "begin emergency map save\n";
		2277	for my $path (keys %cf::MAP) {
		2278	my $map = $cf::MAP{$path} or next;
		2279	$map->valid or next;
		2280	$map->save;
		2281	}
		2282	warn "end emergency map save\n";
		2283	};
		2284
		2285	warn "leave emergency perl save\n";
		2286	}
		2287
1424	sub perl_reload() {	2288	sub reload() {
1425	# can/must only be called in main	2289	# can/must only be called in main
1426	if ($Coro::current != $Coro::main) {	2290	if ($Coro::current != $Coro::main) {
1427	warn "can only reload from main coroutine\n";	2291	warn "can only reload from main coroutine\n";
1428	return;	2292	return;
1429	}	2293	}
1430		2294
1431	warn "reloading...";	2295	warn "reloading...";
1432		2296
1433	local $FREEZE = 1;	2297	warn "freezing server";
		2298	my $guard = freeze_mainloop;
1434	cf::emergency_save;	2299	cf::emergency_save;
		2300
		2301	warn "sync database to disk";
		2302	cf::db_sync;
		2303	IO::AIO::flush;
1435		2304
1436	eval {	2305	eval {
1437	# if anything goes wrong in here, we should simply crash as we already saved	2306	# if anything goes wrong in here, we should simply crash as we already saved
1438		2307
1439	# cancel all watchers	2308	warn "cancel all watchers";
1440	for (Event::all_watchers) {	2309	for (Event::all_watchers) {
1441	$_->cancel if $_->data & WF_AUTOCANCEL;	2310	$_->cancel if $_->data & WF_AUTOCANCEL;
1442	}	2311	}
1443		2312
1444	# cancel all extension coros	2313	warn "cancel all extension coros";
1445	$_->cancel for values %EXT_CORO;	2314	$_->cancel for values %EXT_CORO;
1446	%EXT_CORO = ();	2315	%EXT_CORO = ();
1447		2316
		2317	warn "remove commands";
		2318	%COMMAND = ();
		2319
		2320	warn "remove ext commands";
		2321	%EXTCMD = ();
		2322
1448	# unload all extensions	2323	warn "unload/nuke all extensions";
1449	for (@exts) {	2324	for my $pkg (@EXTS) {
1450	warn "unloading <$_>";	2325	warn "... unloading $pkg";
1451	unload_extension $_;	2326
		2327	if (my $cb = $pkg->can ("unload")) {
		2328	eval {
		2329	$cb->($pkg);
		2330	1
		2331	} or warn "$pkg unloaded, but with errors: $@";
1452	}	2332	}
1453		2333
		2334	warn "... nuking $pkg";
		2335	Symbol::delete_package $pkg;
		2336	}
		2337
1454	# unload all modules loaded from $LIBDIR	2338	warn "unload all perl modules loaded from $LIBDIR";
1455	while (my ($k, $v) = each %INC) {	2339	while (my ($k, $v) = each %INC) {
1456	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2340	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1457		2341
1458	warn "removing <$k>";	2342	warn "removing <$k>";
1459	delete $INC{$k};	2343	delete $INC{$k};
…		…
1466	}	2350	}
1467		2351
1468	Symbol::delete_package $k;	2352	Symbol::delete_package $k;
1469	}	2353	}
1470		2354
1471	# sync database to disk
1472	cf::db_sync;
1473	IO::AIO::flush;
1474
1475	# get rid of safe::, as good as possible	2355	warn "get rid of safe::, as good as possible";
1476	Symbol::delete_package "safe::$_"	2356	Symbol::delete_package "safe::$_"
1477	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2357	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1478		2358
1479	# remove register_script_function callbacks
1480	# TODO
1481
1482	# unload cf.pm "a bit"	2359	warn "unload cf.pm \"a bit\"";
1483	delete $INC{"cf.pm"};	2360	delete $INC{"cf.pm"};
1484		2361
1485	# don't, removes xs symbols, too,	2362	# don't, removes xs symbols, too,
1486	# and global variables created in xs	2363	# and global variables created in xs
1487	#Symbol::delete_package __PACKAGE__;	2364	#Symbol::delete_package __PACKAGE__;
1488		2365
1489	# reload cf.pm
1490	warn "reloading cf.pm";	2366	warn "reloading cf.pm";
1491	require cf;	2367	require cf;
1492	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2368	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1493		2369
1494	# load config and database again	2370	warn "load config and database again";
1495	cf::cfg_load;	2371	cf::cfg_load;
1496	cf::db_load;	2372	cf::db_load;
1497		2373
1498	# load extensions
1499	warn "load extensions";	2374	warn "load extensions";
1500	cf::load_extensions;	2375	cf::load_extensions;
1501		2376
1502	# reattach attachments to objects	2377	warn "reattach attachments to objects/players";
1503	warn "reattach";
1504	_global_reattach;	2378	_global_reattach;
		2379	warn "reattach attachments to maps";
		2380	reattach $_ for values %MAP;
1505	};	2381	};
1506		2382
1507	if ($@) {	2383	if ($@) {
1508	warn $@;	2384	warn $@;
1509	warn "error while reloading, exiting.";	2385	warn "error while reloading, exiting.";
1510	exit 1;	2386	exit 1;
1511	}	2387	}
1512		2388
1513	warn "reloaded successfully";	2389	warn "reloaded";
1514	};	2390	};
1515		2391
1516	#############################################################################
1517
1518	unless ($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	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1527	}
1528
1529	register "<global>", __PACKAGE__;
1530
1531	register_command "perl-reload" => sub {	2392	register_command "reload" => sub {
1532	my ($who, $arg) = @_;	2393	my ($who, $arg) = @_;
1533		2394
1534	if ($who->flag (FLAG_WIZ)) {	2395	if ($who->flag (FLAG_WIZ)) {
1535	$who->message ("start of reload.");	2396	$who->message ("start of reload.");
1536	perl_reload;	2397	reload;
1537	$who->message ("end of reload.");	2398	$who->message ("end of reload.");
1538	}	2399	}
1539	};	2400	};
1540		2401
1541	unshift @INC, $LIBDIR;	2402	unshift @INC, $LIBDIR;
…		…
1544	reentrant => 0,	2405	reentrant => 0,
1545	prio => 0,	2406	prio => 0,
1546	at => $NEXT_TICK \|\| $TICK,	2407	at => $NEXT_TICK \|\| $TICK,
1547	data => WF_AUTOCANCEL,	2408	data => WF_AUTOCANCEL,
1548	cb => sub {	2409	cb => sub {
1549	unless ($FREEZE) {	2410	$NOW = Event::time;
		2411
1550	cf::server_tick; # one server iteration	2412	cf::server_tick; # one server iteration
1551	$RUNTIME += $TICK;	2413	$RUNTIME += $TICK;
1552	}
1553
1554	$NEXT_TICK += $TICK;	2414	$NEXT_TICK += $TICK;
		2415
		2416	$WAIT_FOR_TICK->broadcast;
		2417	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
1555		2418
1556	# if we are delayed by four ticks or more, skip them all	2419	# if we are delayed by four ticks or more, skip them all
1557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2420	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1558		2421
1559	$TICK_WATCHER->at ($NEXT_TICK);	2422	$TICK_WATCHER->at ($NEXT_TICK);
…		…
1561	},	2424	},
1562	);	2425	);
1563		2426
1564	IO::AIO::max_poll_time $TICK * 0.2;	2427	IO::AIO::max_poll_time $TICK * 0.2;
1565		2428
1566	Event->io (	2429	$AIO_POLL_WATCHER = Event->io (
1567	fd => IO::AIO::poll_fileno,	2430	fd => IO::AIO::poll_fileno,
1568	poll => 'r',	2431	poll => 'r',
1569	prio => 5,	2432	prio => 5,
1570	data => WF_AUTOCANCEL,	2433	data => WF_AUTOCANCEL,
1571	cb => \&IO::AIO::poll_cb,	2434	cb => \&IO::AIO::poll_cb,
1572	);	2435	);
1573		2436
1574	Event->timer (	2437	$WRITE_RUNTIME_WATCHER = Event->timer (
1575	data => WF_AUTOCANCEL,	2438	data => WF_AUTOCANCEL,
1576	after => 0,	2439	after => 0,
1577	interval => 10,	2440	interval => 10,
1578	cb => sub {	2441	cb => sub {
1579	(Coro::unblock_sub {	2442	(Coro::unblock_sub {
…		…
1581	or warn "ERROR: unable to write runtime file: $!";	2444	or warn "ERROR: unable to write runtime file: $!";
1582	})->();	2445	})->();
1583	},	2446	},
1584	);	2447	);
1585		2448
		2449	END { cf::emergency_save }
		2450
1586	1	2451	1
1587		2452

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC vs. Revision 1.171 by root, Sun Jan 14 12:24:48 2007 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC vs.
Revision 1.171 by root, Sun Jan 14 12:24:48 2007 UTC