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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 1.164 by root, Thu Jan 11 01:24:25 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
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;
57		64
58	binmode STDOUT;	65	binmode STDOUT;
59	binmode STDERR;	66	binmode STDERR;
60		67
61	# read virtual server time, if available	68	# read virtual server time, if available
…		…
71	mkdir cf::localdir . "/" . cf::uniquedir;	78	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	79	mkdir $RANDOM_MAPS;
73		80
74	# a special map that is always available	81	# a special map that is always available
75	our $LINK_MAP;	82	our $LINK_MAP;
		83	our $EMERGENCY_POSITION;
76		84
77	#############################################################################	85	#############################################################################
78		86
79	=head2 GLOBAL VARIABLES	87	=head2 GLOBAL VARIABLES
80		88
…		…
104		112
105	=item %cf::CFG	113	=item %cf::CFG
106		114
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	115	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	116	from wherever your confdir points to.
		117
		118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		119
		120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		122	processing has been done. Call C<< ->wait >> on them to maximise the
		123	window of cpu time available, or simply to synchronise to the server tick.
109		124
110	=back	125	=back
111		126
112	=cut	127	=cut
113		128
…		…
117	utf8::encode $msg;	132	utf8::encode $msg;
118		133
119	$msg .= "\n"	134	$msg .= "\n"
120	unless $msg =~ /\n$/;	135	unless $msg =~ /\n$/;
121		136
122	LOG llevError, "cfperl: $msg";	137	LOG llevError, $msg;
123	};	138	};
124	}	139	}
125		140
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		160
146	$Event::DIED = sub {	161	$Event::DIED = sub {
147	warn "error in event callback: @_";	162	warn "error in event callback: @_";
148	};	163	};
149		164
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	165	=head2 UTILITY FUNCTIONS
155		166
156	=over 4	167	=over 4
157		168
		169	=item dumpval $ref
		170
158	=cut	171	=cut
		172
		173	sub dumpval {
		174	eval {
		175	local $SIG{__DIE__};
		176	my $d;
		177	if (1) {
		178	$d = new Data::Dumper([$_[0]], ["*var"]);
		179	$d->Terse(1);
		180	$d->Indent(2);
		181	$d->Quotekeys(0);
		182	$d->Useqq(1);
		183	#$d->Bless(...);
		184	$d->Seen($_[1]) if @_ > 1;
		185	$d = $d->Dump();
		186	}
		187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		188	$d
		189	} || "[unable to dump $_[0]: '$@']";
		190	}
159		191
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	192	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		193
162	=item $ref = cf::from_json $json	194	=item $ref = cf::from_json $json
163		195
…		…
178		210
179	sub to_json($) {	211	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]	213	JSON::Syck::Dump $_[0]
182	}	214	}
		215
		216	=item cf::lock_wait $string
		217
		218	Wait until the given lock is available. See cf::lock_acquire.
		219
		220	=item my $lock = cf::lock_acquire $string
		221
		222	Wait until the given lock is available and then acquires it and returns
		223	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		224	for example when the coroutine gets canceled), the lock is automatically
		225	returned.
		226
		227	Lock names should begin with a unique identifier (for example, cf::map::find
		228	uses map_find and cf::map::load uses map_load).
		229
		230	=cut
		231
		232	our %LOCK;
		233
		234	sub lock_wait($) {
		235	my ($key) = @_;
		236
		237	# wait for lock, if any
		238	while ($LOCK{$key}) {
		239	push @{ $LOCK{$key} }, $Coro::current;
		240	Coro::schedule;
		241	}
		242	}
		243
		244	sub lock_acquire($) {
		245	my ($key) = @_;
		246
		247	# wait, to be sure we are not locked
		248	lock_wait $key;
		249
		250	$LOCK{$key} = [];
		251
		252	Coro::guard {
		253	# wake up all waiters, to be on the safe side
		254	$_->ready for @{ delete $LOCK{$key} };
		255	}
		256	}
		257
		258	sub freeze_mainloop {
		259	return unless $TICK_WATCHER->is_active;
		260
		261	my $guard = Coro::guard { $TICK_WATCHER->start };
		262	$TICK_WATCHER->stop;
		263	$guard
		264	}
		265
		266	=item cf::async { BLOCK }
		267
		268	Currently the same as Coro::async_pool, meaning you cannot use
		269	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		270	thing you are allowed to do is call C<prio> on it.
		271
		272	=cut
		273
		274	BEGIN { *async = \&Coro::async_pool }
183		275
184	=item cf::sync_job { BLOCK }	276	=item cf::sync_job { BLOCK }
185		277
186	The design of crossfire+ requires that the main coro ($Coro::main) is	278	The design of crossfire+ requires that the main coro ($Coro::main) is
187	always able to handle events or runnable, as crossfire+ is only partly	279	always able to handle events or runnable, as crossfire+ is only partly
…		…
195	=cut	287	=cut
196		288
197	sub sync_job(&) {	289	sub sync_job(&) {
198	my ($job) = @_;	290	my ($job) = @_;
199		291
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 == $Coro::main) {	292	if ($Coro::current == $Coro::main) {
		293	# this is the main coro, too bad, we have to block
		294	# till the operation succeeds, freezing the server :/
		295
		296	# TODO: use suspend/resume instead
		297	# (but this is cancel-safe)
		298	my $freeze_guard = freeze_mainloop;
		299
		300	my $busy = 1;
		301	my @res;
		302
		303	(async {
		304	@res = eval { $job->() };
		305	warn $@ if $@;
		306	undef $busy;
213	$coro->prio (Coro::PRIO_MAX);	307	})->prio (Coro::PRIO_MAX);
		308
214	while ($busy) {	309	while ($busy) {
215	Coro::cede_notself;	310	Coro::cede or Event::one_event;
216	Event::one_event unless Coro::nready;
217	}	311	}
		312
		313	wantarray ? @res : $res[0]
218	} else {	314	} else {
219	$coro->join;	315	# we are in another coroutine, how wonderful, everything just works
		316
		317	$job->()
220	}	318	}
221
222	wantarray ? @res : $res[0]
223	}	319	}
224		320
225	=item $coro = cf::coro { BLOCK }	321	=item $coro = cf::async_ext { BLOCK }
226		322
227	Creates and returns a new coro. This coro is automcatially being canceled	323	Like async, but this coro is automatically being canceled when the
228	when the extension calling this is being unloaded.	324	extension calling this is being unloaded.
229		325
230	=cut	326	=cut
231		327
232	sub coro(&) {	328	sub async_ext(&) {
233	my $cb = shift;	329	my $cb = shift;
234		330
235	my $coro; $coro = async {	331	my $coro = &Coro::async ($cb);
236	eval {
237	$cb->();
238	};
239	warn $@ if $@;
240	};
241		332
242	$coro->on_destroy (sub {	333	$coro->on_destroy (sub {
243	delete $EXT_CORO{$coro+0};	334	delete $EXT_CORO{$coro+0};
244	});	335	});
245	$EXT_CORO{$coro+0} = $coro;	336	$EXT_CORO{$coro+0} = $coro;
…		…
251	my $runtime = cf::localdir . "/runtime";	342	my $runtime = cf::localdir . "/runtime";
252		343
253	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
254	or return;	345	or return;
255		346
256	my $value = $cf::RUNTIME;	347	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	348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
258	and return;	349	and return;
259		350
260	aio_fsync $fh	351	aio_fsync $fh
261	and return;	352	and return;
…		…
275		366
276	#############################################################################	367	#############################################################################
277		368
278	package cf::path;	369	package cf::path;
279		370
		371	use overload
		372	'""' => \&as_string;
		373
		374	# used to convert map paths into valid unix filenames by repalcing / by ∕
		375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		376
		377	sub register {
		378	my ($pkg, $prefix) = @_;
		379
		380	$EXT_MAP{$prefix} = $pkg;
		381	}
		382
280	sub new {	383	sub new {
281	my ($class, $path, $base) = @_;	384	my ($class, $path, $base) = @_;
282		385
283	my $self = bless { }, $class;	386	return $path if ref $path;
284		387
285	if ($path =~ s{^\?random/}{}) {	388	my $self = {};
286	$self->{random} = cf::from_json $path;	389
		390	# {... are special paths that are not being touched
		391	# ?xxx/... are special absolute paths
		392	# ?random/... random maps
		393	# /! non-realised random map exit
		394	# /... normal maps
		395	# ~/... per-player maps without a specific player (DO NOT USE)
		396	# ~user/... per-player map of a specific user
		397
		398	$path =~ s/$PATH_SEP/\//go;
		399
		400	if ($path =~ /^{/) {
		401	# fine as it is
287	} else {	402	} else {
288	if ($path =~ s{^~([^/]+)?}{}) {	403	if ($path =~ s{^~([^/]+)?}{}) {
		404	# ~user
289	$self->{user_rel} = 1;	405	$self->{user_rel} = 1;
290		406
291	if (defined $1) {	407	if (defined $1) {
292	$self->{user} = $1;	408	$self->{user} = $1;
293	} elsif ($base =~ m{^~([^/]+)/}) {	409	} elsif ($base =~ m{^~([^/]+)/}) {
294	$self->{user} = $1;	410	$self->{user} = $1;
295	} else {	411	} else {
296	warn "cannot resolve user-relative path without user <$path,$base>\n";	412	warn "cannot resolve user-relative path without user <$path,$base>\n";
297	}	413	}
		414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
		415	# ?...
		416	$self->{ext} = $1;
		417	if (my $ext = $EXT_MAP{$1}) {
		418	bless $self, $ext;
		419	}
298	} elsif ($path =~ /^\//) {	420	} elsif ($path =~ /^\//) {
		421	# /...
299	# already absolute	422	# already absolute
300	} else {	423	} else {
		424	# relative
301	$base =~ s{[^/]+/?$}{};	425	$base =~ s{[^/]+/?$}{};
302	return $class->new ("$base/$path");	426	return $class->new ("$base/$path");
303	}	427	}
304		428
305	for ($path) {	429	for ($path) {
…		…
308	}	432	}
309	}	433	}
310		434
311	$self->{path} = $path;	435	$self->{path} = $path;
312		436
		437	if ("HASH" eq ref $self) {
		438	bless $self, $class;
		439	} else {
		440	$self->init;
		441	}
		442
		443	for my $ext (values %EXT_MAP) {
		444	if (my $subst = $ext->substitute ($self)) {
		445	return $subst;
		446	}
		447	}
		448
313	$self	449	$self
		450	}
		451
		452	sub init {
		453	# nop
		454	}
		455
		456	sub substitute {
		457	()
314	}	458	}
315		459
316	# the name / primary key / in-game path	460	# the name / primary key / in-game path
317	sub as_string {	461	sub as_string {
318	my ($self) = @_;	462	my ($self) = @_;
319		463
320	$self->{user_rel} ? "~$self->{user}$self->{path}"	464	$self->{user_rel} ? "~$self->{user}$self->{path}"
321	: $self->{random} ? "?random/$self->{path}"	465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
322	: $self->{path}	466	: $self->{path}
323	}	467	}
324		468
325	# the displayed name, this is a one way mapping	469	# the displayed name, this is a one way mapping
326	sub visible_name {	470	sub visible_name {
327	my ($self) = @_;	471	&as_string
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	}	472	}
332		473
333	# escape the /'s in the path	474	# escape the /'s in the path
334	sub _escaped_path {	475	sub _escaped_path {
335	# ∕ is U+2215
336	(my $path = $_[0]{path}) =~ s/\//∕/g;	476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		477
337	$path	478	$path
338	}	479	}
339		480
340	# the original (read-only) location	481	# the original (read-only) location
341	sub load_path {	482	sub load_path {
…		…
346		487
347	# the temporary/swap location	488	# the temporary/swap location
348	sub save_path {	489	sub save_path {
349	my ($self) = @_;	490	my ($self) = @_;
350		491
		492	$self->{user_rel}
351	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path	493	? 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	494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
354	}	495	}
355		496
356	# the unique path, might be eq to save_path	497	# the unique path, undef == no special unique path
357	sub uniq_path {	498	sub uniq_path {
358	my ($self) = @_;	499	my ($self) = @_;
359		500
360	$self->{user_rel} || $self->{random}
361	? undef
362	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path	501	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	}	502	}
371		503
372	# this is somewhat ugly, but style maps do need special treatment	504	# this is somewhat ugly, but style maps do need special treatment
373	sub is_style_map {	505	sub is_style_map {
374	$_[0]{path} =~ m{^/styles/}	506	$_[0]{path} =~ m{^/styles/}
		507	}
		508
		509	sub load_orig {
		510	my ($self) = @_;
		511
		512	&cf::map::load_map_header ($self->load_path)
		513	}
		514
		515	sub load_temp {
		516	my ($self) = @_;
		517
		518	&cf::map::load_map_header ($self->save_path)
		519	}
		520
		521	sub unlink_save {
		522	my ($self) = @_;
		523
		524	utf8::encode (my $save = $self->save_path);
		525	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
		526	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
375	}	527	}
376		528
377	package cf;	529	package cf;
378		530
379	#############################################################################	531	#############################################################################
…		…
790	or return;	942	or return;
791		943
792	unless (aio_stat "$filename.pst") {	944	unless (aio_stat "$filename.pst") {
793	(aio_load "$filename.pst", $av) >= 0	945	(aio_load "$filename.pst", $av) >= 0
794	or return;	946	or return;
795	$av = eval { (Storable::thaw <$av>)->{objs} };	947	$av = eval { (Storable::thaw $av)->{objs} };
796	}	948	}
797		949
		950	warn sprintf "loading %s (%d)\n",
		951	$filename, length $data, scalar @{$av || []};#d#
798	return ($data, $av);	952	return ($data, $av);
799	}	953	}
800		954
801	#############################################################################	955	#############################################################################
802	# command handling &c	956	# command handling &c
…		…
827	=cut	981	=cut
828		982
829	sub register_extcmd {	983	sub register_extcmd {
830	my ($name, $cb) = @_;	984	my ($name, $cb) = @_;
831		985
832	my $caller = caller;
833	#warn "registering extcmd '$name' to '$caller'";
834
835	$EXTCMD{$name} = [$cb, $caller];	986	$EXTCMD{$name} = $cb;
836	}	987	}
837		988
838	cf::player->attach (	989	cf::player->attach (
839	on_command => sub {	990	on_command => sub {
840	my ($pl, $name, $params) = @_;	991	my ($pl, $name, $params) = @_;
…		…
853		1004
854	my $msg = eval { from_json $buf };	1005	my $msg = eval { from_json $buf };
855		1006
856	if (ref $msg) {	1007	if (ref $msg) {
857	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1008	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
858	if (my %reply = $cb->[0]->($pl, $msg)) {	1009	if (my %reply = $cb->($pl, $msg)) {
859	$pl->ext_reply ($msg->{msgid}, %reply);	1010	$pl->ext_reply ($msg->{msgid}, %reply);
860	}	1011	}
861	}	1012	}
862	} else {	1013	} else {
863	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1014	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
865		1016
866	cf::override;	1017	cf::override;
867	},	1018	},
868	);	1019	);
869		1020
870	sub register {
871	my ($base, $pkg) = @_;
872
873	#TODO
874	}
875
876	sub load_extension {	1021	sub load_extension {
877	my ($path) = @_;	1022	my ($path) = @_;
878		1023
879	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1024	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
880	my $base = $1;	1025	my $base = $1;
881	my $pkg = $1;	1026	my $pkg = $1;
882	$pkg =~ s/[^[:word:]]/_/g;	1027	$pkg =~ s/[^[:word:]]/_/g;
883	$pkg = "ext::$pkg";	1028	$pkg = "ext::$pkg";
884		1029
885	warn "loading '$path' into '$pkg'\n";	1030	warn "... loading '$path' into '$pkg'\n";
886		1031
887	open my $fh, "<:utf8", $path	1032	open my $fh, "<:utf8", $path
888	or die "$path: $!";	1033	or die "$path: $!";
889		1034
890	my $source =	1035	my $source =
…		…
895		1040
896	eval $source	1041	eval $source
897	or die $@ ? "$path: $@\n"	1042	or die $@ ? "$path: $@\n"
898	: "extension disabled.\n";	1043	: "extension disabled.\n";
899		1044
900	push @exts, $pkg;	1045	push @EXTS, $pkg;
901	$ext_pkg{$base} = $pkg;
902
903	# no strict 'refs';
904	# @{"$pkg\::ISA"} = ext::;
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	# }
919
920	# remove commands
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	}	1046	}
945		1047
946	sub load_extensions {	1048	sub load_extensions {
947	for my $ext (<$LIBDIR/*.ext>) {	1049	for my $ext (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1050	next unless -r $ext;
…		…
966	};	1068	};
967		1069
968	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1070	cf::map->attach (prio => -10000, package => cf::mapsupport::);
969		1071
970	#############################################################################	1072	#############################################################################
971	# load/save perl data associated with player->ob objects
972
973	sub all_objects(@) {
974	@_, map all_objects ($_->inv), @_
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	},
990	);
991
992	#############################################################################
993		1073
994	=head2 CORE EXTENSIONS	1074	=head2 CORE EXTENSIONS
995		1075
996	Functions and methods that extend core crossfire objects.	1076	Functions and methods that extend core crossfire objects.
997		1077
		1078	=cut
		1079
		1080	package cf::player;
		1081
		1082	use Coro::AIO;
		1083
998	=head3 cf::player	1084	=head3 cf::player
999		1085
1000	=over 4	1086	=over 4
1001		1087
1002	=item cf::player::exists $login	1088	=item cf::player::find $login
1003		1089
1004	Returns true when the given account exists.	1090	Returns the given player object, loading it if necessary (might block).
1005		1091
1006	=cut	1092	=cut
1007		1093
1008	sub cf::player::exists($) {	1094	sub playerdir($) {
1009	cf::player::find $_[0]	1095	cf::localdir
1010	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1096	. "/"
		1097	. cf::playerdir
		1098	. "/"
		1099	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1100	}
		1101
		1102	sub path($) {
		1103	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1104
		1105	(playerdir $login) . "/$login.pl"
		1106	}
		1107
		1108	sub find_active($) {
		1109	$cf::PLAYER{$_[0]}
		1110	and $cf::PLAYER{$_[0]}->active
		1111	and $cf::PLAYER{$_[0]}
		1112	}
		1113
		1114	sub exists($) {
		1115	my ($login) = @_;
		1116
		1117	$cf::PLAYER{$login}
		1118	or cf::sync_job { !aio_stat $login }
		1119	}
		1120
		1121	sub find($) {
		1122	return $cf::PLAYER{$_[0]} || do {
		1123	my $login = $_[0];
		1124
		1125	my $guard = cf::lock_acquire "user_find:$login";
		1126
		1127	$cf::PLAYER{$_[0]} || do {
		1128	my $pl = load_pl path $login
		1129	or return;
		1130	$cf::PLAYER{$login} = $pl
		1131	}
		1132	}
		1133	}
		1134
		1135	sub save($) {
		1136	my ($pl) = @_;
		1137
		1138	return if $pl->{deny_save};
		1139
		1140	my $path = path $pl;
		1141	my $guard = cf::lock_acquire "user_save:$path";
		1142
		1143	return if $pl->{deny_save};
		1144
		1145	aio_mkdir playerdir $pl, 0770;
		1146	$pl->{last_save} = $cf::RUNTIME;
		1147
		1148	$pl->save_pl ($path);
		1149	Coro::cede;
		1150	}
		1151
		1152	sub new($) {
		1153	my ($login) = @_;
		1154
		1155	my $self = create;
		1156
		1157	$self->ob->name ($login);
		1158	$self->{deny_save} = 1;
		1159
		1160	$cf::PLAYER{$login} = $self;
		1161
		1162	$self
		1163	}
		1164
		1165	=item $pl->quit_character
		1166
		1167	Nukes the player without looking back. If logged in, the connection will
		1168	be destroyed. May block for a long time.
		1169
		1170	=cut
		1171
		1172	sub quit_character {
		1173	my ($pl) = @_;
		1174
		1175	$pl->{deny_save} = 1;
		1176	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1177
		1178	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1179	$pl->deactivate;
		1180	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1181	$pl->ns->destroy if $pl->ns;
		1182
		1183	my $path = playerdir $pl;
		1184	my $temp = "$path~$cf::RUNTIME~deleting~";
		1185	aio_rename $path, $temp;
		1186	delete $cf::PLAYER{$pl->ob->name};
		1187	$pl->destroy;
		1188	IO::AIO::aio_rmtree $temp;
		1189	}
		1190
		1191	=item cf::player::list_logins
		1192
		1193	Returns am arrayref of all valid playernames in the system, can take a
		1194	while and may block, so not sync_job-capable, ever.
		1195
		1196	=cut
		1197
		1198	sub list_logins {
		1199	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1200	or return [];
		1201
		1202	my @logins;
		1203
		1204	for my $login (@$dirs) {
		1205	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1206	aio_read $fh, 0, 512, my $buf, 0 or next;
		1207	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1208
		1209	utf8::decode $login;
		1210	push @logins, $login;
		1211	}
		1212
		1213	\@logins
		1214	}
		1215
		1216	=item $player->maps
		1217
		1218	Returns an arrayref of cf::path's of all maps that are private for this
		1219	player. May block.
		1220
		1221	=cut
		1222
		1223	sub maps($) {
		1224	my ($pl) = @_;
		1225
		1226	my $files = aio_readdir playerdir $pl
		1227	or return;
		1228
		1229	my @paths;
		1230
		1231	for (@$files) {
		1232	utf8::decode $_;
		1233	next if /\.(?:pl|pst)$/;
		1234	next unless /^$PATH_SEP/o;
		1235
		1236	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
		1237	}
		1238
		1239	\@paths
1011	}	1240	}
1012		1241
1013	=item $player->ext_reply ($msgid, $msgtype, %msg)	1242	=item $player->ext_reply ($msgid, $msgtype, %msg)
1014		1243
1015	Sends an ext reply to the player.	1244	Sends an ext reply to the player.
1016		1245
1017	=cut	1246	=cut
1018		1247
1019	sub cf::player::ext_reply($$$%) {	1248	sub ext_reply($$$%) {
1020	my ($self, $id, %msg) = @_;	1249	my ($self, $id, %msg) = @_;
1021		1250
1022	$msg{msgid} = $id;	1251	$msg{msgid} = $id;
1023		1252
1024	$self->send ("ext " . to_json \%msg);	1253	$self->send ("ext " . cf::to_json \%msg);
1025	}	1254	}
		1255
		1256	package cf;
		1257
		1258	=back
		1259
		1260
		1261	=head3 cf::map
		1262
		1263	=over 4
		1264
		1265	=cut
		1266
		1267	package cf::map;
		1268
		1269	use Fcntl;
		1270	use Coro::AIO;
		1271
		1272	our $MAX_RESET = 3600;
		1273	our $DEFAULT_RESET = 3000;
		1274
		1275	sub generate_random_map {
		1276	my ($path, $rmp) = @_;
		1277
		1278	# mit "rum" bekleckern, nicht
		1279	cf::map::_create_random_map (
		1280	$path,
		1281	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1282	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1283	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1284	$rmp->{exit_on_final_map},
		1285	$rmp->{xsize}, $rmp->{ysize},
		1286	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1287	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1288	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1289	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1290	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1291	(cf::region::find $rmp->{region}), $rmp->{custom}
		1292	)
		1293	}
		1294
		1295	# and all this just because we cannot iterate over
		1296	# all maps in C++...
		1297	sub change_all_map_light {
		1298	my ($change) = @_;
		1299
		1300	$_->change_map_light ($change)
		1301	for grep $_->outdoor, values %cf::MAP;
		1302	}
		1303
		1304	sub load_map_header($) {
		1305	my ($path) = @_;
		1306
		1307	utf8::encode $path;
		1308	aio_open $path, O_RDONLY, 0
		1309	or return;
		1310
		1311	my $map = cf::map::new
		1312	or return;
		1313
		1314	# for better error messages only, will be overwritten later
		1315	$map->path ($path);
		1316
		1317	$map->load_header ($path)
		1318	or return;
		1319
		1320	$map->{load_path} = $path;
		1321
		1322	$map
		1323	}
		1324
		1325	sub find;
		1326	sub find {
		1327	my ($path, $origin) = @_;
		1328
		1329	#warn "find<$path,$origin>\n";#d#
		1330
		1331	$path = new cf::path $path, $origin && $origin->path;
		1332	my $key = $path->as_string;
		1333
		1334	cf::lock_wait "map_find:$key";
		1335
		1336	$cf::MAP{$key} || do {
		1337	my $guard = cf::lock_acquire "map_find:$key";
		1338
		1339	# do it the slow way
		1340	my $map = $path->load_temp;
		1341
		1342	Coro::cede;
		1343
		1344	if ($map) {
		1345	$map->last_access ((delete $map->{last_access})
		1346	|| $cf::RUNTIME); #d#
		1347	# safety
		1348	$map->{instantiate_time} = $cf::RUNTIME
		1349	if $map->{instantiate_time} > $cf::RUNTIME;
		1350	} else {
		1351	$map = $path->load_orig
		1352	or return;
		1353
		1354	$map->{load_original} = 1;
		1355	$map->{instantiate_time} = $cf::RUNTIME;
		1356	$map->last_access ($cf::RUNTIME);
		1357	$map->instantiate;
		1358
		1359	# per-player maps become, after loading, normal maps
		1360	$map->per_player (0) if $path->{user_rel};
		1361	}
		1362
		1363	$map->path ($key);
		1364	$map->{path} = $path;
		1365	$map->{last_save} = $cf::RUNTIME;
		1366
		1367	Coro::cede;
		1368
		1369	if ($map->should_reset) {
		1370	$map->reset;
		1371	undef $guard;
		1372	$map = find $path
		1373	or return;
		1374	}
		1375
		1376	$cf::MAP{$key} = $map
		1377	}
		1378	}
		1379
		1380	sub load {
		1381	my ($self) = @_;
		1382
		1383	my $path = $self->{path};
		1384	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1385
		1386	return if $self->in_memory != cf::MAP_SWAPPED;
		1387
		1388	$self->in_memory (cf::MAP_LOADING);
		1389
		1390	$self->alloc;
		1391	$self->load_objects ($self->{load_path}, 1)
		1392	or return;
		1393
		1394	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1395	if delete $self->{load_original};
		1396
		1397	if (my $uniq = $path->uniq_path) {
		1398	utf8::encode $uniq;
		1399	if (aio_open $uniq, O_RDONLY, 0) {
		1400	$self->clear_unique_items;
		1401	$self->load_objects ($uniq, 0);
		1402	}
		1403	}
		1404
		1405	Coro::cede;
		1406
		1407	# now do the right thing for maps
		1408	$self->link_multipart_objects;
		1409
		1410	if ($self->{path}->is_style_map) {
		1411	$self->{deny_save} = 1;
		1412	$self->{deny_reset} = 1;
		1413	} else {
		1414	$self->decay_objects;
		1415	$self->fix_auto_apply;
		1416	$self->update_buttons;
		1417	$self->set_darkness_map;
		1418	$self->difficulty ($self->estimate_difficulty)
		1419	unless $self->difficulty;
		1420	$self->activate;
		1421	}
		1422
		1423	Coro::cede;
		1424
		1425	$self->in_memory (cf::MAP_IN_MEMORY);
		1426	}
		1427
		1428	# find and load all maps in the 3x3 area around a map
		1429	sub load_diag {
		1430	my ($map) = @_;
		1431
		1432	my @diag; # diagonal neighbours
		1433
		1434	for (0 .. 3) {
		1435	my $neigh = $map->tile_path ($_)
		1436	or next;
		1437	$neigh = find $neigh, $map
		1438	or next;
		1439	$neigh->load;
		1440
		1441	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1442	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1443	}
		1444
		1445	for (@diag) {
		1446	my $neigh = find @$_
		1447	or next;
		1448	$neigh->load;
		1449	}
		1450	}
		1451
		1452	sub find_sync {
		1453	my ($path, $origin) = @_;
		1454
		1455	cf::sync_job { find $path, $origin }
		1456	}
		1457
		1458	sub do_load_sync {
		1459	my ($map) = @_;
		1460
		1461	cf::sync_job { $map->load };
		1462	}
		1463
		1464	our %MAP_PREFETCH;
		1465	our $MAP_PREFETCHER = Coro::async {
		1466	while () {
		1467	while (%MAP_PREFETCH) {
		1468	my $key = each %MAP_PREFETCH
		1469	or next;
		1470	my $path = delete $MAP_PREFETCH{$key};
		1471
		1472	my $map = find $path
		1473	or next;
		1474	$map->load;
		1475	}
		1476	Coro::schedule;
		1477	}
		1478	};
		1479
		1480	sub find_async {
		1481	my ($path, $origin) = @_;
		1482
		1483	$path = new cf::path $path, $origin && $origin->path;
		1484	my $key = $path->as_string;
		1485
		1486	if (my $map = $cf::MAP{$key}) {
		1487	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1488	}
		1489
		1490	$MAP_PREFETCH{$key} = $path;
		1491	$MAP_PREFETCHER->ready;
		1492
		1493	()
		1494	}
		1495
		1496	sub save {
		1497	my ($self) = @_;
		1498
		1499	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1500
		1501	$self->{last_save} = $cf::RUNTIME;
		1502
		1503	return unless $self->dirty;
		1504
		1505	my $save = $self->{path}->save_path; utf8::encode $save;
		1506	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1507
		1508	$self->{load_path} = $save;
		1509
		1510	return if $self->{deny_save};
		1511
		1512	local $self->{last_access} = $self->last_access;#d#
		1513
		1514	cf::async {
		1515	$_->contr->save for $self->players;
		1516	};
		1517
		1518	if ($uniq) {
		1519	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1520	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1521	} else {
		1522	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1523	}
		1524	}
		1525
		1526	sub swap_out {
		1527	my ($self) = @_;
		1528
		1529	# save first because save cedes
		1530	$self->save;
		1531
		1532	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1533
		1534	return if $self->players;
		1535	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1536	return if $self->{deny_save};
		1537
		1538	$self->clear;
		1539	$self->in_memory (cf::MAP_SWAPPED);
		1540	}
		1541
		1542	sub reset_at {
		1543	my ($self) = @_;
		1544
		1545	# TODO: safety, remove and allow resettable per-player maps
		1546	return 1e99 if $self->{path}{user_rel};
		1547	return 1e99 if $self->{deny_reset};
		1548
		1549	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1550	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1551
		1552	$time + $to
		1553	}
		1554
		1555	sub should_reset {
		1556	my ($self) = @_;
		1557
		1558	$self->reset_at <= $cf::RUNTIME
		1559	}
		1560
		1561	sub rename {
		1562	my ($self, $new_path) = @_;
		1563
		1564	$self->{path}->unlink_save;
		1565
		1566	delete $cf::MAP{$self->path};
		1567	$self->{path} = new cf::path $new_path;
		1568	$self->path ($self->{path}->as_string);
		1569	$cf::MAP{$self->path} = $self;
		1570
		1571	$self->save;
		1572	}
		1573
		1574	sub reset {
		1575	my ($self) = @_;
		1576
		1577	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1578
		1579	return if $self->players;
		1580	return if $self->{path}{user_rel};#d#
		1581
		1582	warn "resetting map ", $self->path;#d#
		1583
		1584	delete $cf::MAP{$self->path};
		1585
		1586	$_->clear_links_to ($self) for values %cf::MAP;
		1587
		1588	$self->{path}->unlink_save;
		1589	$self->destroy;
		1590	}
		1591
		1592	my $nuke_counter = "aaaa";
		1593
		1594	sub nuke {
		1595	my ($self) = @_;
		1596
		1597	$self->{deny_save} = 1;
		1598	$self->reset_timeout (1);
		1599	$self->rename ("{nuke}/" . ($nuke_counter++));
		1600	$self->reset; # polite request, might not happen
		1601	}
		1602
		1603	sub customise_for {
		1604	my ($map, $ob) = @_;
		1605
		1606	if ($map->per_player) {
		1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1608	}
		1609
		1610	$map
		1611	}
		1612
		1613	=item cf::map::unique_maps
		1614
		1615	Returns an arrayref of cf::path's of all shared maps that have
		1616	instantiated unique items. May block.
		1617
		1618	=cut
		1619
		1620	sub unique_maps() {
		1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1622	or return;
		1623
		1624	my @paths;
		1625
		1626	for (@$files) {
		1627	utf8::decode $_;
		1628	next if /\.pst$/;
		1629	next unless /^$PATH_SEP/o;
		1630
		1631	push @paths, new cf::path $_;
		1632	}
		1633
		1634	\@paths
		1635	}
		1636
		1637	package cf;
		1638
		1639	=back
		1640
		1641	=head3 cf::object
		1642
		1643	=cut
		1644
		1645	package cf::object;
		1646
		1647	=over 4
		1648
		1649	=item $ob->inv_recursive
		1650
		1651	Returns the inventory of the object _and_ their inventories, recursively.
		1652
		1653	=cut
		1654
		1655	sub inv_recursive_;
		1656	sub inv_recursive_ {
		1657	map { $_, inv_recursive_ $_->inv } @_
		1658	}
		1659
		1660	sub inv_recursive {
		1661	inv_recursive_ inv $_[0]
		1662	}
		1663
		1664	package cf;
1026		1665
1027	=back	1666	=back
1028		1667
1029	=head3 cf::object::player	1668	=head3 cf::object::player
1030		1669
…		…
1068	(ref $cf::CFG{"may_$access"}	1707	(ref $cf::CFG{"may_$access"}
1069	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1708	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1070	: $cf::CFG{"may_$access"})	1709	: $cf::CFG{"may_$access"})
1071	}	1710	}
1072		1711
		1712	=item $player_object->enter_link
		1713
		1714	Freezes the player and moves him/her to a special map (C<{link}>).
		1715
		1716	The player should be reaosnably safe there for short amounts of time. You
		1717	I<MUST> call C<leave_link> as soon as possible, though.
		1718
		1719	=item $player_object->leave_link ($map, $x, $y)
		1720
		1721	Moves the player out of the specila link map onto the given map. If the
		1722	map is not valid (or omitted), the player will be moved back to the
		1723	location he/she was before the call to C<enter_link>, or, if that fails,
		1724	to the emergency map position.
		1725
		1726	Might block.
		1727
		1728	=cut
		1729
		1730	sub cf::object::player::enter_link {
		1731	my ($self) = @_;
		1732
		1733	$self->deactivate_recursive;
		1734
		1735	return if $self->map == $LINK_MAP;
		1736
		1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1738	if $self->map;
		1739
		1740	$self->enter_map ($LINK_MAP, 20, 20);
		1741	}
		1742
		1743	sub cf::object::player::leave_link {
		1744	my ($self, $map, $x, $y) = @_;
		1745
		1746	my $link_pos = delete $self->{_link_pos};
		1747
		1748	unless ($map) {
		1749	# restore original map position
		1750	($map, $x, $y) = @{ $link_pos || [] };
		1751	$map = cf::map::find $map;
		1752
		1753	unless ($map) {
		1754	($map, $x, $y) = @$EMERGENCY_POSITION;
		1755	$map = cf::map::find $map
		1756	or die "FATAL: cannot load emergency map\n";
		1757	}
		1758	}
		1759
		1760	($x, $y) = (-1, -1)
		1761	unless (defined $x) && (defined $y);
		1762
		1763	# use -1 or undef as default coordinates, not 0, 0
		1764	($x, $y) = ($map->enter_x, $map->enter_y)
		1765	if $x <=0 && $y <= 0;
		1766
		1767	$map->load;
		1768	$map->load_diag;
		1769
		1770	return unless $self->contr->active;
		1771	$self->activate_recursive;
		1772	$self->enter_map ($map, $x, $y);
		1773	}
		1774
		1775	cf::player->attach (
		1776	on_logout => sub {
		1777	my ($pl) = @_;
		1778
		1779	# abort map switching before logout
		1780	if ($pl->ob->{_link_pos}) {
		1781	cf::sync_job {
		1782	$pl->ob->leave_link
		1783	};
		1784	}
		1785	},
		1786	on_login => sub {
		1787	my ($pl) = @_;
		1788
		1789	# try to abort aborted map switching on player login :)
		1790	# should happen only on crashes
		1791	if ($pl->ob->{_link_pos}) {
		1792	$pl->ob->enter_link;
		1793	(async {
		1794	# we need this sleep as the login has a concurrent enter_exit running
		1795	# and this sleep increases chances of the player not ending up in scorn
		1796	$pl->ob->reply (undef,
		1797	"There was an internal problem at your last logout, "
		1798	. "the server will try to bring you to your intended destination in a second.",
		1799	cf::NDI_RED);
		1800	Coro::Timer::sleep 1;
		1801	$pl->ob->leave_link;
		1802	})->prio (2);
		1803	}
		1804	},
		1805	);
		1806
		1807	=item $player_object->goto ($path, $x, $y)
		1808
		1809	=cut
		1810
		1811	sub cf::object::player::goto {
		1812	my ($self, $path, $x, $y) = @_;
		1813
		1814	$path = new cf::path $path;
		1815
		1816	$self->enter_link;
		1817
		1818	(async {
		1819	my $map = cf::map::find $path->as_string;
		1820	$map = $map->customise_for ($self) if $map;
		1821
		1822	# warn "entering ", $map->path, " at ($x, $y)\n"
		1823	# if $map;
		1824
		1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1826
		1827	$self->leave_link ($map, $x, $y);
		1828	})->prio (1);
		1829	}
		1830
		1831	=item $player_object->enter_exit ($exit_object)
		1832
		1833	=cut
		1834
		1835	sub parse_random_map_params {
		1836	my ($spec) = @_;
		1837
		1838	my $rmp = { # defaults
		1839	xsize => 10,
		1840	ysize => 10,
		1841	};
		1842
		1843	for (split /\n/, $spec) {
		1844	my ($k, $v) = split /\s+/, $_, 2;
		1845
		1846	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1847	}
		1848
		1849	$rmp
		1850	}
		1851
		1852	sub prepare_random_map {
		1853	my ($exit) = @_;
		1854
		1855	# all this does is basically replace the /! path by
		1856	# a new random map path (?random/...) with a seed
		1857	# that depends on the exit object
		1858
		1859	my $rmp = parse_random_map_params $exit->msg;
		1860
		1861	if ($exit->map) {
		1862	$rmp->{region} = $exit->map->region_name;
		1863	$rmp->{origin_map} = $exit->map->path;
		1864	$rmp->{origin_x} = $exit->x;
		1865	$rmp->{origin_y} = $exit->y;
		1866	}
		1867
		1868	$rmp->{random_seed} ||= $exit->random_seed;
		1869
		1870	my $data = cf::to_json $rmp;
		1871	my $md5 = Digest::MD5::md5_hex $data;
		1872
		1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1874	aio_write $fh, 0, (length $data), $data, 0;
		1875
		1876	$exit->slaying ("?random/$md5");
		1877	$exit->msg (undef);
		1878	}
		1879	}
		1880
		1881	sub cf::object::player::enter_exit {
		1882	my ($self, $exit) = @_;
		1883
		1884	return unless $self->type == cf::PLAYER;
		1885
		1886	$self->enter_link;
		1887
		1888	(async {
		1889	$self->deactivate_recursive; # just to be sure
		1890	unless (eval {
		1891	prepare_random_map $exit
		1892	if $exit->slaying eq "/!";
		1893
		1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1896
		1897	1;
		1898	}) {
		1899	$self->message ("Something went wrong deep within the crossfire server. "
		1900	. "I'll try to bring you back to the map you were before. "
		1901	. "Please report this to the dungeon master!",
		1902	cf::NDI_UNIQUE | cf::NDI_RED);
		1903
		1904	warn "ERROR in enter_exit: $@";
		1905	$self->leave_link;
		1906	}
		1907	})->prio (1);
		1908	}
		1909
1073	=head3 cf::client	1910	=head3 cf::client
1074		1911
1075	=over 4	1912	=over 4
1076		1913
1077	=item $client->send_drawinfo ($text, $flags)	1914	=item $client->send_drawinfo ($text, $flags)
…		…
1120	on_reply => sub {	1957	on_reply => sub {
1121	my ($ns, $msg) = @_;	1958	my ($ns, $msg) = @_;
1122		1959
1123	# this weird shuffling is so that direct followup queries	1960	# this weird shuffling is so that direct followup queries
1124	# get handled first	1961	# get handled first
1125	my $queue = delete $ns->{query_queue};	1962	my $queue = delete $ns->{query_queue}
		1963	or return; # be conservative, not sure how that can happen, but we saw a crash here
1126		1964
1127	(shift @$queue)->[1]->($msg);	1965	(shift @$queue)->[1]->($msg);
1128		1966
1129	push @{ $ns->{query_queue} }, @$queue;	1967	push @{ $ns->{query_queue} }, @$queue;
1130		1968
…		…
1136	}	1974	}
1137	}	1975	}
1138	},	1976	},
1139	);	1977	);
1140		1978
1141	=item $client->coro (\&cb)	1979	=item $client->async (\&cb)
1142		1980
1143	Create a new coroutine, running the specified callback. The coroutine will	1981	Create a new coroutine, running the specified callback. The coroutine will
1144	be automatically cancelled when the client gets destroyed (e.g. on logout,	1982	be automatically cancelled when the client gets destroyed (e.g. on logout,
1145	or loss of connection).	1983	or loss of connection).
1146		1984
1147	=cut	1985	=cut
1148		1986
1149	sub cf::client::coro {	1987	sub cf::client::async {
1150	my ($self, $cb) = @_;	1988	my ($self, $cb) = @_;
1151		1989
1152	my $coro; $coro = async {	1990	my $coro = &Coro::async ($cb);
1153	eval {
1154	$cb->();
1155	};
1156	warn $@ if $@;
1157	};
1158		1991
1159	$coro->on_destroy (sub {	1992	$coro->on_destroy (sub {
1160	delete $self->{_coro}{$coro+0};	1993	delete $self->{_coro}{$coro+0};
1161	});	1994	});
1162		1995
…		…
1334		2167
1335	{	2168	{
1336	my $path = cf::localdir . "/database.pst";	2169	my $path = cf::localdir . "/database.pst";
1337		2170
1338	sub db_load() {	2171	sub db_load() {
1339	warn "loading database $path\n";#d# remove later
1340	$DB = stat $path ? Storable::retrieve $path : { };	2172	$DB = stat $path ? Storable::retrieve $path : { };
1341	}	2173	}
1342		2174
1343	my $pid;	2175	my $pid;
1344		2176
1345	sub db_save() {	2177	sub db_save() {
1346	warn "saving database $path\n";#d# remove later
1347	waitpid $pid, 0 if $pid;	2178	waitpid $pid, 0 if $pid;
1348	if (0 == ($pid = fork)) {	2179	if (0 == ($pid = fork)) {
1349	$DB->{_meta}{version} = 1;	2180	$DB->{_meta}{version} = 1;
1350	Storable::nstore $DB, "$path~";	2181	Storable::nstore $DB, "$path~";
1351	rename "$path~", $path;	2182	rename "$path~", $path;
…		…
1399	open my $fh, "<:utf8", cf::confdir . "/config"	2230	open my $fh, "<:utf8", cf::confdir . "/config"
1400	or return;	2231	or return;
1401		2232
1402	local $/;	2233	local $/;
1403	*CFG = YAML::Syck::Load <$fh>;	2234	*CFG = YAML::Syck::Load <$fh>;
		2235
		2236	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2237
		2238	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2239	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2240
		2241	if (exists $CFG{mlockall}) {
		2242	eval {
		2243	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2244	and die "WARNING: m(un)lockall failed: $!\n";
		2245	};
		2246	warn $@ if $@;
		2247	}
1404	}	2248	}
1405		2249
1406	sub main {	2250	sub main {
1407	# we must not ever block the main coroutine	2251	# we must not ever block the main coroutine
1408	local $Coro::idle = sub {	2252	local $Coro::idle = sub {
1409	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1410	(Coro::unblock_sub {
1411	Event::one_event;	2254	async { Event::one_event };
1412	})->();
1413	};	2255	};
1414		2256
1415	cfg_load;	2257	cfg_load;
1416	db_load;	2258	db_load;
1417	load_extensions;	2259	load_extensions;
1418	Event::loop;	2260	Event::loop;
1419	}	2261	}
1420		2262
1421	#############################################################################	2263	#############################################################################
1422	# initialisation	2264	# initialisation and cleanup
1423		2265
		2266	# install some emergency cleanup handlers
		2267	BEGIN {
		2268	for my $signal (qw(INT HUP TERM)) {
		2269	Event->signal (
		2270	data => WF_AUTOCANCEL,
		2271	signal => $signal,
		2272	cb => sub {
		2273	cf::cleanup "SIG$signal";
		2274	},
		2275	);
		2276	}
		2277	}
		2278
		2279	sub emergency_save() {
		2280	my $freeze_guard = cf::freeze_mainloop;
		2281
		2282	warn "enter emergency perl save\n";
		2283
		2284	cf::sync_job {
		2285	# use a peculiar iteration method to avoid tripping on perl
		2286	# refcount bugs in for. also avoids problems with players
		2287	# and maps saved/Destroyed asynchronously.
		2288	warn "begin emergency player save\n";
		2289	for my $login (keys %cf::PLAYER) {
		2290	my $pl = $cf::PLAYER{$login} or next;
		2291	$pl->valid or next;
		2292	$pl->save;
		2293	}
		2294	warn "end emergency player save\n";
		2295
		2296	warn "begin emergency map save\n";
		2297	for my $path (keys %cf::MAP) {
		2298	my $map = $cf::MAP{$path} or next;
		2299	$map->valid or next;
		2300	$map->save;
		2301	}
		2302	warn "end emergency map save\n";
		2303	};
		2304
		2305	warn "leave emergency perl save\n";
		2306	}
		2307
1424	sub perl_reload() {	2308	sub reload() {
1425	# can/must only be called in main	2309	# can/must only be called in main
1426	if ($Coro::current != $Coro::main) {	2310	if ($Coro::current != $Coro::main) {
1427	warn "can only reload from main coroutine\n";	2311	warn "can only reload from main coroutine\n";
1428	return;	2312	return;
1429	}	2313	}
1430		2314
1431	warn "reloading...";	2315	warn "reloading...";
1432		2316
1433	local $FREEZE = 1;	2317	warn "freezing server";
		2318	my $guard = freeze_mainloop;
1434	cf::emergency_save;	2319	cf::emergency_save;
		2320
		2321	warn "sync database to disk";
		2322	cf::db_sync;
		2323	IO::AIO::flush;
1435		2324
1436	eval {	2325	eval {
1437	# if anything goes wrong in here, we should simply crash as we already saved	2326	# if anything goes wrong in here, we should simply crash as we already saved
1438		2327
1439	# cancel all watchers	2328	warn "cancel all watchers";
1440	for (Event::all_watchers) {	2329	for (Event::all_watchers) {
1441	$_->cancel if $_->data & WF_AUTOCANCEL;	2330	$_->cancel if $_->data & WF_AUTOCANCEL;
1442	}	2331	}
1443		2332
1444	# cancel all extension coros	2333	warn "cancel all extension coros";
1445	$_->cancel for values %EXT_CORO;	2334	$_->cancel for values %EXT_CORO;
1446	%EXT_CORO = ();	2335	%EXT_CORO = ();
1447		2336
		2337	warn "remove commands";
		2338	%COMMAND = ();
		2339
		2340	warn "remove ext commands";
		2341	%EXTCMD = ();
		2342
1448	# unload all extensions	2343	warn "unload/nuke all extensions";
1449	for (@exts) {	2344	for my $pkg (@EXTS) {
1450	warn "unloading <$_>";	2345	warn "... unloading $pkg";
1451	unload_extension $_;	2346
		2347	if (my $cb = $pkg->can ("unload")) {
		2348	eval {
		2349	$cb->($pkg);
		2350	1
		2351	} or warn "$pkg unloaded, but with errors: $@";
1452	}	2352	}
1453		2353
		2354	warn "... nuking $pkg";
		2355	Symbol::delete_package $pkg;
		2356	}
		2357
1454	# unload all modules loaded from $LIBDIR	2358	warn "unload all perl modules loaded from $LIBDIR";
1455	while (my ($k, $v) = each %INC) {	2359	while (my ($k, $v) = each %INC) {
1456	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1457		2361
1458	warn "removing <$k>";	2362	warn "removing <$k>";
1459	delete $INC{$k};	2363	delete $INC{$k};
…		…
1466	}	2370	}
1467		2371
1468	Symbol::delete_package $k;	2372	Symbol::delete_package $k;
1469	}	2373	}
1470		2374
1471	# sync database to disk
1472	cf::db_sync;
1473	IO::AIO::flush;
1474
1475	# get rid of safe::, as good as possible	2375	warn "get rid of safe::, as good as possible";
1476	Symbol::delete_package "safe::$_"	2376	Symbol::delete_package "safe::$_"
1477	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1478		2378
1479	# remove register_script_function callbacks
1480	# TODO
1481
1482	# unload cf.pm "a bit"	2379	warn "unload cf.pm \"a bit\"";
1483	delete $INC{"cf.pm"};	2380	delete $INC{"cf.pm"};
1484		2381
1485	# don't, removes xs symbols, too,	2382	# don't, removes xs symbols, too,
1486	# and global variables created in xs	2383	# and global variables created in xs
1487	#Symbol::delete_package __PACKAGE__;	2384	#Symbol::delete_package __PACKAGE__;
1488		2385
1489	# reload cf.pm
1490	warn "reloading cf.pm";	2386	warn "reloading cf.pm";
1491	require cf;	2387	require cf;
1492	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1493		2389
1494	# load config and database again	2390	warn "load config and database again";
1495	cf::cfg_load;	2391	cf::cfg_load;
1496	cf::db_load;	2392	cf::db_load;
1497		2393
1498	# load extensions
1499	warn "load extensions";	2394	warn "load extensions";
1500	cf::load_extensions;	2395	cf::load_extensions;
1501		2396
1502	# reattach attachments to objects	2397	warn "reattach attachments to objects/players";
1503	warn "reattach";
1504	_global_reattach;	2398	_global_reattach;
		2399	warn "reattach attachments to maps";
		2400	reattach $_ for values %MAP;
1505	};	2401	};
1506		2402
1507	if ($@) {	2403	if ($@) {
1508	warn $@;	2404	warn $@;
1509	warn "error while reloading, exiting.";	2405	warn "error while reloading, exiting.";
1510	exit 1;	2406	exit 1;
1511	}	2407	}
1512		2408
1513	warn "reloaded successfully";	2409	warn "reloaded";
1514	};	2410	};
1515		2411
1516	#############################################################################	2412	#############################################################################
1517		2413
1518	unless ($LINK_MAP) {	2414	unless ($LINK_MAP) {
…		…
1522	$LINK_MAP->height (41);	2418	$LINK_MAP->height (41);
1523	$LINK_MAP->alloc;	2419	$LINK_MAP->alloc;
1524	$LINK_MAP->path ("{link}");	2420	$LINK_MAP->path ("{link}");
1525	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";	2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1526	$LINK_MAP->in_memory (MAP_IN_MEMORY);	2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1527	}
1528		2423
1529	register "<global>", __PACKAGE__;	2424	# dirty hack because... archetypes are not yet loaded
		2425	Event->timer (
		2426	after => 10,
		2427	cb => sub {
		2428	$_[0]->w->cancel;
1530		2429
		2430	# provide some exits "home"
		2431	my $exit = cf::object::new "exit";
		2432
		2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2436
		2437	$LINK_MAP->insert ($exit->clone, 19, 19);
		2438	$LINK_MAP->insert ($exit->clone, 19, 20);
		2439	$LINK_MAP->insert ($exit->clone, 19, 21);
		2440	$LINK_MAP->insert ($exit->clone, 20, 19);
		2441	$LINK_MAP->insert ($exit->clone, 20, 21);
		2442	$LINK_MAP->insert ($exit->clone, 21, 19);
		2443	$LINK_MAP->insert ($exit->clone, 21, 20);
		2444	$LINK_MAP->insert ($exit->clone, 21, 21);
		2445
		2446	$exit->destroy;
		2447	});
		2448
		2449	$LINK_MAP->{deny_save} = 1;
		2450	$LINK_MAP->{deny_reset} = 1;
		2451
		2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2453	}
		2454
1531	register_command "perl-reload" => sub {	2455	register_command "reload" => sub {
1532	my ($who, $arg) = @_;	2456	my ($who, $arg) = @_;
1533		2457
1534	if ($who->flag (FLAG_WIZ)) {	2458	if ($who->flag (FLAG_WIZ)) {
1535	$who->message ("start of reload.");	2459	$who->message ("start of reload.");
1536	perl_reload;	2460	reload;
1537	$who->message ("end of reload.");	2461	$who->message ("end of reload.");
1538	}	2462	}
1539	};	2463	};
1540		2464
1541	unshift @INC, $LIBDIR;	2465	unshift @INC, $LIBDIR;
…		…
1544	reentrant => 0,	2468	reentrant => 0,
1545	prio => 0,	2469	prio => 0,
1546	at => $NEXT_TICK || $TICK,	2470	at => $NEXT_TICK || $TICK,
1547	data => WF_AUTOCANCEL,	2471	data => WF_AUTOCANCEL,
1548	cb => sub {	2472	cb => sub {
1549	unless ($FREEZE) {	2473	$NOW = Event::time;
		2474
1550	cf::server_tick; # one server iteration	2475	cf::server_tick; # one server iteration
1551	$RUNTIME += $TICK;	2476	$RUNTIME += $TICK;
1552	}
1553
1554	$NEXT_TICK += $TICK;	2477	$NEXT_TICK += $TICK;
		2478
		2479	$WAIT_FOR_TICK->broadcast;
		2480	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
1555		2481
1556	# if we are delayed by four ticks or more, skip them all	2482	# if we are delayed by four ticks or more, skip them all
1557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2483	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1558		2484
1559	$TICK_WATCHER->at ($NEXT_TICK);	2485	$TICK_WATCHER->at ($NEXT_TICK);
…		…
1581	or warn "ERROR: unable to write runtime file: $!";	2507	or warn "ERROR: unable to write runtime file: $!";
1582	})->();	2508	})->();
1583	},	2509	},
1584	);	2510	);
1585		2511
		2512	END { cf::emergency_save }
		2513
1586	1	2514	1
1587		2515

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