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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.119 by root, Tue Jan 2 08:26:42 2007 UTC vs.
Revision 1.220 by root, Sat Feb 17 23:54:35 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25		30
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		34
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
30		37
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$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		39
35	our %COMMAND = ();	40	our %COMMAND = ();
36	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
38		47
39	our @EVENT;	48	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
41		50
42	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	55	our $NEXT_TICK;
45	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
46		61
47	our %CFG;	62	our %CFG;
48		63
49	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	65	our $RUNTIME;
51		66
		67	our %PLAYER; # all users
52	our %MAP; # all maps	68	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		78
58	binmode STDOUT;	79	binmode STDOUT;
59	binmode STDERR;	80	binmode STDERR;
60		81
61	# read virtual server time, if available	82	# read virtual server time, if available
…		…
68	mkdir cf::localdir;	89	mkdir cf::localdir;
69	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
73		95
74	# a special map that is always available	96	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		97
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	98	sub cf::map::normalise;
78		99
79	#############################################################################	100	#############################################################################
80		101
81	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
82		103
…		…
106		127
107	=item %cf::CFG	128	=item %cf::CFG
108		129
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
111		139
112	=back	140	=back
113		141
114	=cut	142	=cut
115		143
…		…
119	utf8::encode $msg;	147	utf8::encode $msg;
120		148
121	$msg .= "\n"	149	$msg .= "\n"
122	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
123		151
124	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
125	};	153	};
126	}	154	}
127		155
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		175
148	$Event::DIED = sub {	176	$Event::DIED = sub {
149	warn "error in event callback: @_";	177	warn "error in event callback: @_";
150	};	178	};
151		179
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
157		181
158	=over 4	182	=over 4
159		183
		184	=item dumpval $ref
		185
160	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
161		206
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		208
164	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
165		210
…		…
180		225
181	sub to_json($) {	226	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
184	}	229	}
		230
		231	=item cf::lock_wait $string
		232
		233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	};
		279	$TICK_WATCHER->stop;
		280	$guard
		281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
185		292
186	=item cf::sync_job { BLOCK }	293	=item cf::sync_job { BLOCK }
187		294
188	The design of crossfire+ requires that the main coro ($Coro::main) is	295	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	296	always able to handle events or runnable, as crossfire+ is only partly
…		…
203	# this is the main coro, too bad, we have to block	310	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	311	# till the operation succeeds, freezing the server :/
205		312
206	# TODO: use suspend/resume instead	313	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	314	# (but this is cancel-safe)
208	local $FREEZE = 1;	315	my $freeze_guard = freeze_mainloop;
209		316
210	my $busy = 1;	317	my $busy = 1;
211	my @res;	318	my @res;
212		319
213	(Coro::async {	320	(async {
214	@res = eval { $job->() };	321	@res = eval { $job->() };
215	warn $@ if $@;	322	warn $@ if $@;
216	undef $busy;	323	undef $busy;
217	})->prio (Coro::PRIO_MAX);	324	})->prio (Coro::PRIO_MAX);
218		325
219	while ($busy) {	326	while ($busy) {
220	Coro::cede_notself;	327	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	328	}
223		329
224	wantarray ? @res : $res[0]	330	wantarray ? @res : $res[0]
225	} else {	331	} else {
226	# we are in another coroutine, how wonderful, everything just works	332	# we are in another coroutine, how wonderful, everything just works
227		333
228	$job->()	334	$job->()
229	}	335	}
230	}	336	}
231		337
232	=item $coro = cf::coro { BLOCK }	338	=item $coro = cf::async_ext { BLOCK }
233		339
234	Creates and returns a new coro. This coro is automcatially being canceled	340	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	341	extension calling this is being unloaded.
236		342
237	=cut	343	=cut
238		344
239	sub coro(&) {	345	sub async_ext(&) {
240	my $cb = shift;	346	my $cb = shift;
241		347
242	my $coro; $coro = async {	348	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		349
249	$coro->on_destroy (sub {	350	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	351	delete $EXT_CORO{$coro+0};
251	});	352	});
252	$EXT_CORO{$coro+0} = $coro;	353	$EXT_CORO{$coro+0} = $coro;
253		354
254	$coro	355	$coro
255	}	356	}
256		357
257	sub write_runtime {	358	sub write_runtime {
		359	my $guard = cf::lock_acquire "write_runtime";
		360
258	my $runtime = cf::localdir . "/runtime";	361	my $runtime = cf::localdir . "/runtime";
259		362
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	364	or return;
262		365
		366	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	371	and return;
266		372
		373	# always fsync - this file is important
267	aio_fsync $fh	374	aio_fsync $fh
268	and return;	375	and return;
269		376
270	close $fh	377	close $fh
271	or return;	378	or return;
…		…
277	}	384	}
278		385
279	=back	386	=back
280		387
281	=cut	388	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402		389
403	#############################################################################	390	#############################################################################
404		391
405	=head2 ATTACHABLE OBJECTS	392	=head2 ATTACHABLE OBJECTS
406		393
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	520	our @CB_MAP = ();
534		521
535	my %attachment;	522	my %attachment;
536		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
537	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
539		532
540	use sort 'stable';	533	use sort 'stable';
541		534
…		…
712	# object support	705	# object support
713		706
714	sub reattach {	707	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	708	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		712
718	my $registry = $obj->registry;	713	my $registry = $obj->registry;
719		714
720	@$registry = ();	715	@$registry = ();
721		716
…		…
768	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
769		764
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	768	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	769	close $fh;
775		770
776	if (@$objs) {	771	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	773	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	774	my $data = Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	775	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	776	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	777	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
784	}	779	}
785	} else {	780	} else {
786	aio_unlink "$filename.pst";	781	aio_unlink "$filename.pst";
…		…
853	=cut	848	=cut
854		849
855	sub register_extcmd {	850	sub register_extcmd {
856	my ($name, $cb) = @_;	851	my ($name, $cb) = @_;
857		852
858	my $caller = caller;
859	#warn "registering extcmd '$name' to '$caller'";
860
861	$EXTCMD{$name} = [$cb, $caller];	853	$EXTCMD{$name} = $cb;
862	}	854	}
863		855
864	cf::player->attach (	856	cf::player->attach (
865	on_command => sub {	857	on_command => sub {
866	my ($pl, $name, $params) = @_;	858	my ($pl, $name, $params) = @_;
…		…
879		871
880	my $msg = eval { from_json $buf };	872	my $msg = eval { from_json $buf };
881		873
882	if (ref $msg) {	874	if (ref $msg) {
883	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
884	if (my %reply = $cb->[0]->($pl, $msg)) {	876	if (my %reply = $cb->($pl, $msg)) {
885	$pl->ext_reply ($msg->{msgid}, %reply);	877	$pl->ext_reply ($msg->{msgid}, %reply);
886	}	878	}
887	}	879	}
888	} else {	880	} else {
889	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
891		883
892	cf::override;	884	cf::override;
893	},	885	},
894	);	886	);
895		887
896	sub register {
897	my ($base, $pkg) = @_;
898
899	#TODO
900	}
901
902	sub load_extension {	888	sub load_extension {
903	my ($path) = @_;	889	my ($path) = @_;
904		890
905	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
906	my $base = $1;	892	my $base = $1;
907	my $pkg = $1;	893	my $pkg = $1;
908	$pkg =~ s/[^[:word:]]/_/g;	894	$pkg =~ s/[^[:word:]]/_/g;
909	$pkg = "ext::$pkg";	895	$pkg = "ext::$pkg";
910		896
911	warn "loading '$path' into '$pkg'\n";	897	warn "... loading '$path' into '$pkg'\n";
912		898
913	open my $fh, "<:utf8", $path	899	open my $fh, "<:utf8", $path
914	or die "$path: $!";	900	or die "$path: $!";
915		901
916	my $source =	902	my $source =
917	"package $pkg; use strict; use utf8;\n"	903	"package $pkg; use strict; use utf8;\n"
918	. "#line 1 \"$path\"\n{\n"	904	. "#line 1 \"$path\"\n{\n"
919	. (do { local $/; <$fh> })	905	. (do { local $/; <$fh> })
920	. "\n};\n1";	906	. "\n};\n1";
921		907
922	eval $source	908	unless (eval $source) {
923	or die $@ ? "$path: $@\n"	909	my $msg = $@ ? "$path: $@\n"
924	: "extension disabled.\n";	910	: "extension disabled.\n";
925		911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
926	push @exts, $pkg;	912	warn $@;
927	$ext_pkg{$base} = $pkg;	913	warn "mandatory extension failed to load, exiting.\n";
928		914	exit 1;
929	# no strict 'refs';	915	}
930	# @{"$pkg\::ISA"} = ext::;	916	die $@;
931
932	register $base, $pkg;
933	}
934
935	sub unload_extension {
936	my ($pkg) = @_;
937
938	warn "removing extension $pkg\n";
939
940	# remove hooks
941	#TODO
942	# for my $idx (0 .. $#PLUGIN_EVENT) {
943	# delete $hook[$idx]{$pkg};
944	# }	917	}
945		918
946	# remove commands	919	push @EXTS, $pkg;
947	for my $name (keys %COMMAND) {
948	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
949
950	if (@cb) {
951	$COMMAND{$name} = \@cb;
952	} else {
953	delete $COMMAND{$name};
954	}
955	}
956
957	# remove extcmds
958	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
959	delete $EXTCMD{$name};
960	}
961
962	if (my $cb = $pkg->can ("unload")) {
963	eval {
964	$cb->($pkg);
965	1
966	} or warn "$pkg unloaded, but with errors: $@";
967	}
968
969	Symbol::delete_package $pkg;
970	}	920	}
971		921
972	sub load_extensions {	922	sub load_extensions {
973	for my $ext (<$LIBDIR/*.ext>) {	923	for my $ext (<$LIBDIR/*.ext>) {
974	next unless -r $ext;	924	next unless -r $ext;
…		…
978	} or warn "$ext not loaded: $@";	928	} or warn "$ext not loaded: $@";
979	}	929	}
980	}	930	}
981		931
982	#############################################################################	932	#############################################################################
983	# load/save/clean perl data associated with a map
984
985	*cf::mapsupport::on_clean = sub {
986	my ($map) = @_;
987
988	my $path = $map->tmpname;
989	defined $path or return;
990
991	unlink "$path.pst";
992	};
993
994	cf::map->attach (prio => -10000, package => cf::mapsupport::);
995
996	#############################################################################
997	# load/save perl data associated with player->ob objects
998
999	sub all_objects(@) {
1000	@_, map all_objects ($_->inv), @_
1001	}
1002
1003	# TODO: compatibility cruft, remove when no longer needed
1004	cf::player->attach (
1005	on_load => sub {
1006	my ($pl, $path) = @_;
1007
1008	for my $o (all_objects $pl->ob) {
1009	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1010	$o->set_ob_key_value ("_perl_data");
1011
1012	%$o = %{ Storable::thaw pack "H*", $value };
1013	}
1014	}
1015	},
1016	);
1017
1018	#############################################################################
1019		933
1020	=head2 CORE EXTENSIONS	934	=head2 CORE EXTENSIONS
1021		935
1022	Functions and methods that extend core crossfire objects.	936	Functions and methods that extend core crossfire objects.
1023		937
		938	=cut
		939
		940	package cf::player;
		941
		942	use Coro::AIO;
		943
1024	=head3 cf::player	944	=head3 cf::player
1025		945
1026	=over 4	946	=over 4
1027		947
1028	=item cf::player::exists $login	948	=item cf::player::find $login
1029		949
1030	Returns true when the given account exists.	950	Returns the given player object, loading it if necessary (might block).
1031		951
1032	=cut	952	=cut
1033		953
1034	sub cf::player::exists($) {	954	sub playerdir($) {
1035	cf::player::find $_[0]	955	cf::localdir
1036	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	956	. "/"
		957	. cf::playerdir
		958	. "/"
		959	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		960	}
		961
		962	sub path($) {
		963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		964
		965	(playerdir $login) . "/$login.pl"
		966	}
		967
		968	sub find_active($) {
		969	$cf::PLAYER{$_[0]}
		970	and $cf::PLAYER{$_[0]}->active
		971	and $cf::PLAYER{$_[0]}
		972	}
		973
		974	sub exists($) {
		975	my ($login) = @_;
		976
		977	$cf::PLAYER{$login}
		978	or cf::sync_job { !aio_stat path $login }
		979	}
		980
		981	sub find($) {
		982	return $cf::PLAYER{$_[0]} || do {
		983	my $login = $_[0];
		984
		985	my $guard = cf::lock_acquire "user_find:$login";
		986
		987	$cf::PLAYER{$_[0]} || do {
		988	my $pl = load_pl path $login
		989	or return;
		990	$cf::PLAYER{$login} = $pl
		991	}
		992	}
		993	}
		994
		995	sub save($) {
		996	my ($pl) = @_;
		997
		998	return if $pl->{deny_save};
		999
		1000	my $path = path $pl;
		1001	my $guard = cf::lock_acquire "user_save:$path";
		1002
		1003	return if $pl->{deny_save};
		1004
		1005	aio_mkdir playerdir $pl, 0770;
		1006	$pl->{last_save} = $cf::RUNTIME;
		1007
		1008	$pl->save_pl ($path);
		1009	Coro::cede;
		1010	}
		1011
		1012	sub new($) {
		1013	my ($login) = @_;
		1014
		1015	my $self = create;
		1016
		1017	$self->ob->name ($login);
		1018	$self->{deny_save} = 1;
		1019
		1020	$cf::PLAYER{$login} = $self;
		1021
		1022	$self
		1023	}
		1024
		1025	=item $pl->quit_character
		1026
		1027	Nukes the player without looking back. If logged in, the connection will
		1028	be destroyed. May block for a long time.
		1029
		1030	=cut
		1031
		1032	sub quit_character {
		1033	my ($pl) = @_;
		1034
		1035	my $name = $pl->ob->name;
		1036
		1037	$pl->{deny_save} = 1;
		1038	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1039
		1040	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1041	$pl->deactivate;
		1042	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1043	$pl->ns->destroy if $pl->ns;
		1044
		1045	my $path = playerdir $pl;
		1046	my $temp = "$path~$cf::RUNTIME~deleting~";
		1047	aio_rename $path, $temp;
		1048	delete $cf::PLAYER{$pl->ob->name};
		1049	$pl->destroy;
		1050
		1051	my $prefix = qr<^~\Q$name\E/>;
		1052
		1053	# nuke player maps
		1054	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1055
		1056	IO::AIO::aio_rmtree $temp;
		1057	}
		1058
		1059	=item cf::player::list_logins
		1060
		1061	Returns am arrayref of all valid playernames in the system, can take a
		1062	while and may block, so not sync_job-capable, ever.
		1063
		1064	=cut
		1065
		1066	sub list_logins {
		1067	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1068	or return [];
		1069
		1070	my @logins;
		1071
		1072	for my $login (@$dirs) {
		1073	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1074	aio_read $fh, 0, 512, my $buf, 0 or next;
		1075	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1076
		1077	utf8::decode $login;
		1078	push @logins, $login;
		1079	}
		1080
		1081	\@logins
		1082	}
		1083
		1084	=item $player->maps
		1085
		1086	Returns an arrayref of map paths that are private for this
		1087	player. May block.
		1088
		1089	=cut
		1090
		1091	sub maps($) {
		1092	my ($pl) = @_;
		1093
		1094	$pl = ref $pl ? $pl->ob->name : $pl;
		1095
		1096	my $files = aio_readdir playerdir $pl
		1097	or return;
		1098
		1099	my @paths;
		1100
		1101	for (@$files) {
		1102	utf8::decode $_;
		1103	next if /\.(?:pl|pst)$/;
		1104	next unless /^$PATH_SEP/o;
		1105
		1106	push @paths, cf::map::normalise "~$pl/$_";
		1107	}
		1108
		1109	\@paths
1037	}	1110	}
1038		1111
1039	=item $player->ext_reply ($msgid, $msgtype, %msg)	1112	=item $player->ext_reply ($msgid, $msgtype, %msg)
1040		1113
1041	Sends an ext reply to the player.	1114	Sends an ext reply to the player.
1042		1115
1043	=cut	1116	=cut
1044		1117
1045	sub cf::player::ext_reply($$$%) {	1118	sub ext_reply($$$%) {
1046	my ($self, $id, %msg) = @_;	1119	my ($self, $id, %msg) = @_;
1047		1120
1048	$msg{msgid} = $id;	1121	$msg{msgid} = $id;
1049		1122
1050	$self->send ("ext " . to_json \%msg);	1123	$self->send ("ext " . cf::to_json \%msg);
1051	}	1124	}
		1125
		1126	package cf;
1052		1127
1053	=back	1128	=back
1054		1129
1055		1130
1056	=head3 cf::map	1131	=head3 cf::map
…		…
1062	package cf::map;	1137	package cf::map;
1063		1138
1064	use Fcntl;	1139	use Fcntl;
1065	use Coro::AIO;	1140	use Coro::AIO;
1066		1141
		1142	use overload
		1143	'""' => \&as_string,
		1144	fallback => 1;
		1145
1067	our $MAX_RESET = 7200;	1146	our $MAX_RESET = 3600;
1068	our $DEFAULT_RESET = 3600;	1147	our $DEFAULT_RESET = 3000;
1069		1148
1070	sub generate_random_map {	1149	sub generate_random_map {
1071	my ($path, $rmp) = @_;	1150	my ($self, $rmp) = @_;
1072
1073	# mit "rum" bekleckern, nicht	1151	# mit "rum" bekleckern, nicht
1074	cf::map::_create_random_map	1152	$self->_create_random_map (
1075	$path,
1076	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1153	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1077	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1154	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1078	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1155	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1079	$rmp->{exit_on_final_map},	1156	$rmp->{exit_on_final_map},
1080	$rmp->{xsize}, $rmp->{ysize},	1157	$rmp->{xsize}, $rmp->{ysize},
1081	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1158	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1082	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1159	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1083	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1160	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1084	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1161	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1085	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1162	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1086	(cf::region::find $rmp->{region})	1163	(cf::region::find $rmp->{region}), $rmp->{custom}
		1164	)
		1165	}
		1166
		1167	=item cf::map->register ($regex, $prio)
		1168
		1169	Register a handler for the map path matching the given regex at the
		1170	givne priority (higher is better, built-in handlers have priority 0, the
		1171	default).
		1172
		1173	=cut
		1174
		1175	sub register {
		1176	my (undef, $regex, $prio) = @_;
		1177	my $pkg = caller;
		1178
		1179	no strict;
		1180	push @{"$pkg\::ISA"}, __PACKAGE__;
		1181
		1182	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1183	}
		1184
		1185	# also paths starting with '/'
		1186	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1187
		1188	sub thawer_merge {
		1189	my ($self, $merge) = @_;
		1190
		1191	# we have to keep some variables in memory intact
		1192	local $self->{path};
		1193	local $self->{load_path};
		1194	local $self->{deny_save};
		1195	local $self->{deny_reset};
		1196
		1197	$self->SUPER::thawer_merge ($merge);
		1198	}
		1199
		1200	sub normalise {
		1201	my ($path, $base) = @_;
		1202
		1203	$path = "$path"; # make sure its a string
		1204
		1205	$path =~ s/\.map$//;
		1206
		1207	# map plan:
		1208	#
		1209	# /! non-realised random map exit (special hack!)
		1210	# {... are special paths that are not being touched
		1211	# ?xxx/... are special absolute paths
		1212	# ?random/... random maps
		1213	# /... normal maps
		1214	# ~user/... per-player map of a specific user
		1215
		1216	$path =~ s/$PATH_SEP/\//go;
		1217
		1218	# treat it as relative path if it starts with
		1219	# something that looks reasonable
		1220	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1221	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1222
		1223	$base =~ s{[^/]+/?$}{};
		1224	$path = "$base/$path";
		1225	}
		1226
		1227	for ($path) {
		1228	redo if s{//}{/};
		1229	redo if s{/\.?/}{/};
		1230	redo if s{/[^/]+/\.\./}{/};
		1231	}
		1232
		1233	$path
		1234	}
		1235
		1236	sub new_from_path {
		1237	my (undef, $path, $base) = @_;
		1238
		1239	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1240
		1241	$path = normalise $path, $base;
		1242
		1243	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1244	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1245	my $self = bless cf::map::new, $pkg;
		1246	$self->{path} = $path; $self->path ($path);
		1247	$self->init; # pass $1 etc.
		1248	return $self;
		1249	}
		1250	}
		1251
		1252	Carp::carp "unable to resolve path '$path' (base '$base').";
		1253	()
		1254	}
		1255
		1256	sub init {
		1257	my ($self) = @_;
		1258
		1259	$self
		1260	}
		1261
		1262	sub as_string {
		1263	my ($self) = @_;
		1264
		1265	"$self->{path}"
		1266	}
		1267
		1268	# the displayed name, this is a one way mapping
		1269	sub visible_name {
		1270	&as_string
		1271	}
		1272
		1273	# the original (read-only) location
		1274	sub load_path {
		1275	my ($self) = @_;
		1276
		1277	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1278	}
		1279
		1280	# the temporary/swap location
		1281	sub save_path {
		1282	my ($self) = @_;
		1283
		1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1285	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1286	}
		1287
		1288	# the unique path, undef == no special unique path
		1289	sub uniq_path {
		1290	my ($self) = @_;
		1291
		1292	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1293	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1087	}	1294	}
1088		1295
1089	# and all this just because we cannot iterate over	1296	# and all this just because we cannot iterate over
1090	# all maps in C++...	1297	# all maps in C++...
1091	sub change_all_map_light {	1298	sub change_all_map_light {
1092	my ($change) = @_;	1299	my ($change) = @_;
1093		1300
1094	$_->change_map_light ($change) for values %cf::MAP;	1301	$_->change_map_light ($change)
		1302	for grep $_->outdoor, values %cf::MAP;
1095	}	1303	}
1096		1304
		1305	sub unlink_save {
		1306	my ($self) = @_;
		1307
		1308	utf8::encode (my $save = $self->save_path);
		1309	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1311	}
		1312
1097	sub try_load_header($) {	1313	sub load_header_from($) {
1098	my ($path) = @_;	1314	my ($self, $path) = @_;
1099		1315
1100	utf8::encode $path;	1316	utf8::encode $path;
1101	aio_open $path, O_RDONLY, 0	1317	#aio_open $path, O_RDONLY, 0
		1318	# or return;
		1319
		1320	$self->_load_header ($path)
1102	or return;	1321	or return;
1103		1322
1104	my $map = cf::map::new	1323	$self->{load_path} = $path;
		1324
		1325	1
		1326	}
		1327
		1328	sub load_header_orig {
		1329	my ($self) = @_;
		1330
		1331	$self->load_header_from ($self->load_path)
		1332	}
		1333
		1334	sub load_header_temp {
		1335	my ($self) = @_;
		1336
		1337	$self->load_header_from ($self->save_path)
		1338	}
		1339
		1340	sub prepare_temp {
		1341	my ($self) = @_;
		1342
		1343	$self->last_access ((delete $self->{last_access})
		1344	|| $cf::RUNTIME); #d#
		1345	# safety
		1346	$self->{instantiate_time} = $cf::RUNTIME
		1347	if $self->{instantiate_time} > $cf::RUNTIME;
		1348	}
		1349
		1350	sub prepare_orig {
		1351	my ($self) = @_;
		1352
		1353	$self->{load_original} = 1;
		1354	$self->{instantiate_time} = $cf::RUNTIME;
		1355	$self->last_access ($cf::RUNTIME);
		1356	$self->instantiate;
		1357	}
		1358
		1359	sub load_header {
		1360	my ($self) = @_;
		1361
		1362	if ($self->load_header_temp) {
		1363	$self->prepare_temp;
		1364	} else {
		1365	$self->load_header_orig
1105	or return;	1366	or return;
		1367	$self->prepare_orig;
		1368	}
1106		1369
1107	$map->load_header ($path)	1370	1
1108	or return;
1109
1110	$map->{load_path} = $path;
1111
1112	$map
1113	}	1371	}
1114		1372
		1373	sub find;
1115	sub find_map {	1374	sub find {
1116	my ($path, $origin) = @_;	1375	my ($path, $origin) = @_;
1117		1376
1118	#warn "find_map<$path,$origin>\n";#d#
1119
1120	$path = new cf::path $path, $origin && $origin->path;	1377	$path = normalise $path, $origin && $origin->path;
1121	my $key = $path->as_string;
1122		1378
		1379	cf::lock_wait "map_find:$path";
		1380
1123	$cf::MAP{$key} || do {	1381	$cf::MAP{$path} || do {
1124	# do it the slow way	1382	my $guard = cf::lock_acquire "map_find:$path";
1125	my $map = try_load_header $path->save_path;	1383	my $map = new_from_path cf::map $path
1126
1127	if ($map) {
1128	# safety
1129	$map->{instantiate_time} = $cf::RUNTIME
1130	if $map->{instantiate_time} > $cf::RUNTIME;
1131	} else {
1132	if (my $rmp = $path->random_map_params) {
1133	$map = generate_random_map $key, $rmp;
1134	} else {
1135	$map = try_load_header $path->load_path;
1136	}
1137
1138	$map or return;	1384	or return;
1139		1385
1140	$map->{load_original} = 1;
1141	$map->{instantiate_time} = $cf::RUNTIME;
1142	$map->instantiate;
1143
1144	# per-player maps become, after loading, normal maps
1145	$map->per_player (0) if $path->{user_rel};
1146	}
1147	#Coro::Timer::sleep 1;#d#
1148
1149	$map->path ($key);
1150	$map->{path} = $path;
1151	$map->{last_save} = $cf::RUNTIME;	1386	$map->{last_save} = $cf::RUNTIME;
1152	$map->last_access ($cf::RUNTIME);
1153		1387
1154	if ($map->should_reset) {	1388	$map->load_header
		1389	or return;
		1390
		1391	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1392	# doing this can freeze the server in a sync job, obviously
		1393	#$cf::WAIT_FOR_TICK->wait;
1155	$map->reset;	1394	$map->reset;
1156	$map = find_map $path;	1395	undef $guard;
		1396	return find $path;
1157	}	1397	}
1158		1398
1159	$cf::MAP{$key} = $map	1399	$cf::MAP{$path} = $map
1160	}	1400	}
1161	}	1401	}
		1402
		1403	sub pre_load { }
		1404	sub post_load { }
1162		1405
1163	sub load {	1406	sub load {
1164	my ($self) = @_;	1407	my ($self) = @_;
1165		1408
		1409	local $self->{deny_reset} = 1; # loading can take a long time
		1410
		1411	my $path = $self->{path};
		1412	my $guard = cf::lock_acquire "map_load:$path";
		1413
1166	return if $self->in_memory != cf::MAP_SWAPPED;	1414	return if $self->in_memory != cf::MAP_SWAPPED;
1167		1415
1168	$self->in_memory (cf::MAP_LOADING);	1416	$self->in_memory (cf::MAP_LOADING);
1169		1417
1170	my $path = $self->{path};
1171
1172	$self->alloc;	1418	$self->alloc;
		1419
		1420	$self->pre_load;
		1421
1173	$self->load_objects ($self->{load_path}, 1)	1422	$self->_load_objects ($self->{load_path}, 1)
1174	or return;	1423	or return;
1175		1424
1176	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1425	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1177	if delete $self->{load_original};	1426	if delete $self->{load_original};
1178		1427
1179	if (my $uniq = $path->uniq_path) {	1428	if (my $uniq = $self->uniq_path) {
1180	utf8::encode $uniq;	1429	utf8::encode $uniq;
1181	if (aio_open $uniq, O_RDONLY, 0) {	1430	if (aio_open $uniq, O_RDONLY, 0) {
1182	$self->clear_unique_items;	1431	$self->clear_unique_items;
1183	$self->load_objects ($uniq, 0);	1432	$self->_load_objects ($uniq, 0);
1184	}	1433	}
1185	}	1434	}
		1435
		1436	Coro::cede;
1186		1437
1187	# now do the right thing for maps	1438	# now do the right thing for maps
1188	$self->link_multipart_objects;	1439	$self->link_multipart_objects;
1189		1440
1190	if ($self->{path}->is_style_map) {	1441	unless ($self->{deny_activate}) {
1191	$self->{deny_save} = 1;	1442	$self->decay_objects;
1192	$self->{deny_reset} = 1;
1193	} else {
1194	$self->fix_auto_apply;	1443	$self->fix_auto_apply;
1195	$self->decay_objects;
1196	$self->update_buttons;	1444	$self->update_buttons;
		1445	Coro::cede;
1197	$self->set_darkness_map;	1446	$self->set_darkness_map;
1198	$self->difficulty ($self->estimate_difficulty)	1447	$self->difficulty ($self->estimate_difficulty)
1199	unless $self->difficulty;	1448	unless $self->difficulty;
		1449	Coro::cede;
1200	$self->activate;	1450	$self->activate;
1201	}	1451	}
1202		1452
		1453	$self->post_load;
		1454
1203	$self->in_memory (cf::MAP_IN_MEMORY);	1455	$self->in_memory (cf::MAP_IN_MEMORY);
1204	}	1456	}
1205		1457
1206	sub load_map_sync {	1458	sub customise_for {
		1459	my ($self, $ob) = @_;
		1460
		1461	return find "~" . $ob->name . "/" . $self->{path}
		1462	if $self->per_player;
		1463
		1464	$self
		1465	}
		1466
		1467	# find and load all maps in the 3x3 area around a map
		1468	sub load_diag {
		1469	my ($map) = @_;
		1470
		1471	my @diag; # diagonal neighbours
		1472
		1473	for (0 .. 3) {
		1474	my $neigh = $map->tile_path ($_)
		1475	or next;
		1476	$neigh = find $neigh, $map
		1477	or next;
		1478	$neigh->load;
		1479
		1480	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1481	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1482	}
		1483
		1484	for (@diag) {
		1485	my $neigh = find @$_
		1486	or next;
		1487	$neigh->load;
		1488	}
		1489	}
		1490
		1491	sub find_sync {
1207	my ($path, $origin) = @_;	1492	my ($path, $origin) = @_;
1208		1493
1209	#warn "load_map_sync<$path, $origin>\n";#d#	1494	cf::sync_job { find $path, $origin }
		1495	}
1210		1496
1211	cf::sync_job {	1497	sub do_load_sync {
1212	my $map = cf::map::find_map $path, $origin	1498	my ($map) = @_;
1213	or return;	1499
		1500	cf::sync_job { $map->load };
		1501	}
		1502
		1503	our %MAP_PREFETCH;
		1504	our $MAP_PREFETCHER = undef;
		1505
		1506	sub find_async {
		1507	my ($path, $origin) = @_;
		1508
		1509	$path = normalise $path, $origin && $origin->{path};
		1510
		1511	if (my $map = $cf::MAP{$path}) {
		1512	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1513	}
		1514
		1515	undef $MAP_PREFETCH{$path};
		1516	$MAP_PREFETCHER ||= cf::async {
		1517	while (%MAP_PREFETCH) {
		1518	for my $path (keys %MAP_PREFETCH) {
		1519	my $map = find $path
		1520	or next;
1214	$map->load;	1521	$map->load;
1215	$map	1522
		1523	delete $MAP_PREFETCH{$path};
		1524	}
		1525	}
		1526	undef $MAP_PREFETCHER;
1216	}	1527	};
		1528	$MAP_PREFETCHER->prio (6);
		1529
		1530	()
1217	}	1531	}
1218		1532
1219	sub save {	1533	sub save {
1220	my ($self) = @_;	1534	my ($self) = @_;
1221		1535
		1536	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1537
1222	$self->{last_save} = $cf::RUNTIME;	1538	$self->{last_save} = $cf::RUNTIME;
1223		1539
1224	return unless $self->dirty;	1540	return unless $self->dirty;
1225		1541
1226	my $save = $self->{path}->save_path; utf8::encode $save;	1542	my $save = $self->save_path; utf8::encode $save;
1227	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1543	my $uniq = $self->uniq_path; utf8::encode $uniq;
1228		1544
1229	$self->{load_path} = $save;	1545	$self->{load_path} = $save;
1230		1546
1231	return if $self->{deny_save};	1547	return if $self->{deny_save};
1232		1548
		1549	local $self->{last_access} = $self->last_access;#d#
		1550
		1551	cf::async {
		1552	$_->contr->save for $self->players;
		1553	};
		1554
1233	if ($uniq) {	1555	if ($uniq) {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1556	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1235	$self->save_objects ($uniq, cf::IO_UNIQUES);	1557	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1236	} else {	1558	} else {
1237	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1238	}	1560	}
1239	}	1561	}
1240		1562
1241	sub swap_out {	1563	sub swap_out {
1242	my ($self) = @_;	1564	my ($self) = @_;
		1565
		1566	# save first because save cedes
		1567	$self->save;
		1568
		1569	my $lock = cf::lock_acquire "map_data:" . $self->path;
1243		1570
1244	return if $self->players;	1571	return if $self->players;
1245	return if $self->in_memory != cf::MAP_IN_MEMORY;	1572	return if $self->in_memory != cf::MAP_IN_MEMORY;
1246	return if $self->{deny_save};	1573	return if $self->{deny_save};
1247		1574
1248	$self->save;
1249	$self->clear;	1575	$self->clear;
1250	$self->in_memory (cf::MAP_SWAPPED);	1576	$self->in_memory (cf::MAP_SWAPPED);
1251	}	1577	}
1252		1578
1253	sub reset_at {	1579	sub reset_at {
1254	my ($self) = @_;	1580	my ($self) = @_;
1255		1581
1256	# TODO: safety, remove and allow resettable per-player maps	1582	# TODO: safety, remove and allow resettable per-player maps
1257	return 1e99 if $self->{path}{user_rel};	1583	return 1e99 if $self->isa ("ext::map_per_player");#d#
1258	return 1e99 if $self->{deny_reset};	1584	return 1e99 if $self->{deny_reset};
1259		1585
1260	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1586	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1261	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1587	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1262		1588
…		…
1267	my ($self) = @_;	1593	my ($self) = @_;
1268		1594
1269	$self->reset_at <= $cf::RUNTIME	1595	$self->reset_at <= $cf::RUNTIME
1270	}	1596	}
1271		1597
1272	sub unlink_save {
1273	my ($self) = @_;
1274
1275	utf8::encode (my $save = $self->{path}->save_path);
1276	aioreq_pri 3; IO::AIO::aio_unlink $save;
1277	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1278	}
1279
1280	sub rename {
1281	my ($self, $new_path) = @_;
1282
1283	$self->unlink_save;
1284
1285	delete $cf::MAP{$self->path};
1286	$self->{path} = new cf::path $new_path;
1287	$self->path ($self->{path}->as_string);
1288	$cf::MAP{$self->path} = $self;
1289
1290	$self->save;
1291	}
1292
1293	sub reset {	1598	sub reset {
1294	my ($self) = @_;	1599	my ($self) = @_;
1295		1600
		1601	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1602
1296	return if $self->players;	1603	return if $self->players;
1297	return if $self->{path}{user_rel};#d#	1604	return if $self->isa ("ext::map_per_player");#d#
1298		1605
1299	warn "resetting map ", $self->path;#d#	1606	warn "resetting map ", $self->path;#d#
1300		1607
		1608	$self->in_memory (cf::MAP_SWAPPED);
		1609
		1610	# need to save uniques path
		1611	unless ($self->{deny_save}) {
		1612	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1613
		1614	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1615	if $uniq;
		1616	}
		1617
1301	delete $cf::MAP{$self->path};	1618	delete $cf::MAP{$self->path};
		1619
		1620	$self->clear;
1302		1621
1303	$_->clear_links_to ($self) for values %cf::MAP;	1622	$_->clear_links_to ($self) for values %cf::MAP;
1304		1623
1305	$self->unlink_save;	1624	$self->unlink_save;
1306	$self->destroy;	1625	$self->destroy;
…		…
1309	my $nuke_counter = "aaaa";	1628	my $nuke_counter = "aaaa";
1310		1629
1311	sub nuke {	1630	sub nuke {
1312	my ($self) = @_;	1631	my ($self) = @_;
1313		1632
		1633	delete $cf::MAP{$self->path};
		1634
		1635	$self->unlink_save;
		1636
		1637	bless $self, "cf::map";
		1638	delete $self->{deny_reset};
1314	$self->{deny_save} = 1;	1639	$self->{deny_save} = 1;
1315	$self->reset_timeout (1);	1640	$self->reset_timeout (1);
1316	$self->rename ("{nuke}/" . ($nuke_counter++));	1641	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1642
		1643	$cf::MAP{$self->path} = $self;
		1644
1317	$self->reset; # polite request, might not happen	1645	$self->reset; # polite request, might not happen
1318	}	1646	}
1319		1647
1320	sub customise_for {	1648	=item cf::map::unique_maps
1321	my ($map, $ob) = @_;
1322		1649
1323	if ($map->per_player) {	1650	Returns an arrayref of paths of all shared maps that have
1324	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1651	instantiated unique items. May block.
1325	}
1326		1652
1327	$map	1653	=cut
1328	}
1329		1654
1330	sub emergency_save {	1655	sub unique_maps() {
1331	local $cf::FREEZE = 1;	1656	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1657	or return;
1332		1658
1333	warn "enter emergency map save\n";	1659	my @paths;
1334		1660
1335	cf::sync_job {	1661	for (@$files) {
1336	warn "begin emergency map save\n";	1662	utf8::decode $_;
1337	$_->save for values %cf::MAP;	1663	next if /\.pst$/;
		1664	next unless /^$PATH_SEP/o;
		1665
		1666	push @paths, cf::map::normalise $_;
1338	};	1667	}
1339		1668
1340	warn "end emergency map save\n";	1669	\@paths
1341	}	1670	}
1342		1671
1343	package cf;	1672	package cf;
1344		1673
1345	=back	1674	=back
1346		1675
		1676	=head3 cf::object
		1677
		1678	=cut
		1679
		1680	package cf::object;
		1681
		1682	=over 4
		1683
		1684	=item $ob->inv_recursive
		1685
		1686	Returns the inventory of the object _and_ their inventories, recursively.
		1687
		1688	=cut
		1689
		1690	sub inv_recursive_;
		1691	sub inv_recursive_ {
		1692	map { $_, inv_recursive_ $_->inv } @_
		1693	}
		1694
		1695	sub inv_recursive {
		1696	inv_recursive_ inv $_[0]
		1697	}
		1698
		1699	package cf;
		1700
		1701	=back
1347		1702
1348	=head3 cf::object::player	1703	=head3 cf::object::player
1349		1704
1350	=over 4	1705	=over 4
1351		1706
…		…
1391		1746
1392	=item $player_object->enter_link	1747	=item $player_object->enter_link
1393		1748
1394	Freezes the player and moves him/her to a special map (C<{link}>).	1749	Freezes the player and moves him/her to a special map (C<{link}>).
1395		1750
1396	The player should be reaosnably safe there for short amounts of time. You	1751	The player should be reasonably safe there for short amounts of time. You
1397	I<MUST> call C<leave_link> as soon as possible, though.	1752	I<MUST> call C<leave_link> as soon as possible, though.
1398		1753
		1754	Will never block.
		1755
1399	=item $player_object->leave_link ($map, $x, $y)	1756	=item $player_object->leave_link ($map, $x, $y)
1400		1757
1401	Moves the player out of the specila link map onto the given map. If the	1758	Moves the player out of the special C<{link}> map onto the specified
1402	map is not valid (or omitted), the player will be moved back to the	1759	map. If the map is not valid (or omitted), the player will be moved back
1403	location he/she was before the call to C<enter_link>, or, if that fails,	1760	to the location he/she was before the call to C<enter_link>, or, if that
1404	to the emergency map position.	1761	fails, to the emergency map position.
1405		1762
1406	Might block.	1763	Might block.
1407		1764
1408	=cut	1765	=cut
		1766
		1767	sub link_map {
		1768	unless ($LINK_MAP) {
		1769	$LINK_MAP = cf::map::find "{link}"
		1770	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1771	$LINK_MAP->load;
		1772	}
		1773
		1774	$LINK_MAP
		1775	}
1409		1776
1410	sub cf::object::player::enter_link {	1777	sub cf::object::player::enter_link {
1411	my ($self) = @_;	1778	my ($self) = @_;
1412		1779
1413	return if $self->map == $LINK_MAP;	1780	$self->deactivate_recursive;
1414		1781
		1782	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1783
1415	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1784	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1416	if $self->map;	1785	if $self->map;
1417		1786
1418	$self->enter_map ($LINK_MAP, 20, 20);	1787	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1419	$self->deactivate_recursive;
1420	}	1788	}
1421		1789
1422	sub cf::object::player::leave_link {	1790	sub cf::object::player::leave_link {
1423	my ($self, $map, $x, $y) = @_;	1791	my ($self, $map, $x, $y) = @_;
1424		1792
1425	my $link_pos = delete $self->{_link_pos};	1793	my $link_pos = delete $self->{_link_pos};
1426		1794
1427	unless ($map) {	1795	unless ($map) {
1428	# restore original map position	1796	# restore original map position
1429	($map, $x, $y) = @{ $link_pos || [] };	1797	($map, $x, $y) = @{ $link_pos || [] };
1430	$map = cf::map::find_map $map;	1798	$map = cf::map::find $map;
1431		1799
1432	unless ($map) {	1800	unless ($map) {
1433	($map, $x, $y) = @$EMERGENCY_POSITION;	1801	($map, $x, $y) = @$EMERGENCY_POSITION;
1434	$map = cf::map::find_map $map	1802	$map = cf::map::find $map
1435	or die "FATAL: cannot load emergency map\n";	1803	or die "FATAL: cannot load emergency map\n";
1436	}	1804	}
1437	}	1805	}
1438		1806
1439	($x, $y) = (-1, -1)	1807	($x, $y) = (-1, -1)
…		…
1442	# use -1 or undef as default coordinates, not 0, 0	1810	# use -1 or undef as default coordinates, not 0, 0
1443	($x, $y) = ($map->enter_x, $map->enter_y)	1811	($x, $y) = ($map->enter_x, $map->enter_y)
1444	if $x <=0 && $y <= 0;	1812	if $x <=0 && $y <= 0;
1445		1813
1446	$map->load;	1814	$map->load;
		1815	$map->load_diag;
1447		1816
		1817	return unless $self->contr->active;
1448	$self->activate_recursive;	1818	$self->activate_recursive;
		1819
		1820	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1449	$self->enter_map ($map, $x, $y);	1821	$self->enter_map ($map, $x, $y);
1450	}	1822	}
1451		1823
		1824	cf::player->attach (
		1825	on_logout => sub {
		1826	my ($pl) = @_;
		1827
		1828	# abort map switching before logout
		1829	if ($pl->ob->{_link_pos}) {
		1830	cf::sync_job {
		1831	$pl->ob->leave_link
		1832	};
		1833	}
		1834	},
		1835	on_login => sub {
		1836	my ($pl) = @_;
		1837
		1838	# try to abort aborted map switching on player login :)
		1839	# should happen only on crashes
		1840	if ($pl->ob->{_link_pos}) {
		1841	$pl->ob->enter_link;
		1842	(async {
		1843	$pl->ob->reply (undef,
		1844	"There was an internal problem at your last logout, "
		1845	. "the server will try to bring you to your intended destination in a second.",
		1846	cf::NDI_RED);
		1847	# we need this sleep as the login has a concurrent enter_exit running
		1848	# and this sleep increases chances of the player not ending up in scorn
		1849	Coro::Timer::sleep 1;
		1850	$pl->ob->leave_link;
		1851	})->prio (2);
		1852	}
		1853	},
		1854	);
		1855
1452	=item $player_object->goto_map ($path, $x, $y)	1856	=item $player_object->goto ($path, $x, $y)
1453		1857
1454	=cut	1858	=cut
1455		1859
1456	sub cf::object::player::goto_map {	1860	sub cf::object::player::goto {
1457	my ($self, $path, $x, $y) = @_;	1861	my ($self, $path, $x, $y) = @_;
1458		1862
1459	$self->enter_link;	1863	$self->enter_link;
1460		1864
1461	(Coro::async {	1865	(async {
1462	$path = new cf::path $path;	1866	my $map = eval {
1463
1464	my $map = cf::map::find_map $path->as_string;	1867	my $map = cf::map::find $path;
1465	$map = $map->customise_for ($self) if $map;	1868	$map = $map->customise_for ($self) if $map;
1466		1869	$map
1467	# warn "entering ", $map->path, " at ($x, $y)\n"	1870	} or
1468	# if $map;
1469
1470	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1871	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1471		1872
1472	$self->leave_link ($map, $x, $y);	1873	$self->leave_link ($map, $x, $y);
1473	})->prio (1);	1874	})->prio (1);
1474	}	1875	}
1475		1876
…		…
1479		1880
1480	sub parse_random_map_params {	1881	sub parse_random_map_params {
1481	my ($spec) = @_;	1882	my ($spec) = @_;
1482		1883
1483	my $rmp = { # defaults	1884	my $rmp = { # defaults
1484	xsize => 10,	1885	xsize => (cf::rndm 15, 40),
1485	ysize => 10,	1886	ysize => (cf::rndm 15, 40),
		1887	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1888	#layout => string,
1486	};	1889	};
1487		1890
1488	for (split /\n/, $spec) {	1891	for (split /\n/, $spec) {
1489	my ($k, $v) = split /\s+/, $_, 2;	1892	my ($k, $v) = split /\s+/, $_, 2;
1490		1893
…		…
1494	$rmp	1897	$rmp
1495	}	1898	}
1496		1899
1497	sub prepare_random_map {	1900	sub prepare_random_map {
1498	my ($exit) = @_;	1901	my ($exit) = @_;
		1902
		1903	my $guard = cf::lock_acquire "exit_prepare:$exit";
1499		1904
1500	# all this does is basically replace the /! path by	1905	# all this does is basically replace the /! path by
1501	# a new random map path (?random/...) with a seed	1906	# a new random map path (?random/...) with a seed
1502	# that depends on the exit object	1907	# that depends on the exit object
1503		1908
1504	my $rmp = parse_random_map_params $exit->msg;	1909	my $rmp = parse_random_map_params $exit->msg;
1505		1910
1506	if ($exit->map) {	1911	if ($exit->map) {
1507	$rmp->{region} = $exit->map->region_name;	1912	$rmp->{region} = $exit->region->name;
1508	$rmp->{origin_map} = $exit->map->path;	1913	$rmp->{origin_map} = $exit->map->path;
1509	$rmp->{origin_x} = $exit->x;	1914	$rmp->{origin_x} = $exit->x;
1510	$rmp->{origin_y} = $exit->y;	1915	$rmp->{origin_y} = $exit->y;
1511	}	1916	}
1512		1917
1513	$rmp->{random_seed} ||= $exit->random_seed;	1918	$rmp->{random_seed} ||= $exit->random_seed;
1514		1919
1515	my $data = cf::to_json $rmp;	1920	my $data = cf::to_json $rmp;
1516	my $md5 = Digest::MD5::md5_hex $data;	1921	my $md5 = Digest::MD5::md5_hex $data;
		1922	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1517		1923
1518	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1924	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1519	aio_write $fh, 0, (length $data), $data, 0;	1925	aio_write $fh, 0, (length $data), $data, 0;
		1926	undef $fh;
		1927	aio_rename "$meta~", $meta;
1520		1928
1521	$exit->slaying ("?random/$md5");	1929	$exit->slaying ("?random/$md5");
1522	$exit->msg (undef);	1930	$exit->msg (undef);
1523	}	1931	}
1524	}	1932	}
…		…
1526	sub cf::object::player::enter_exit {	1934	sub cf::object::player::enter_exit {
1527	my ($self, $exit) = @_;	1935	my ($self, $exit) = @_;
1528		1936
1529	return unless $self->type == cf::PLAYER;	1937	return unless $self->type == cf::PLAYER;
1530		1938
		1939	if ($exit->slaying eq "/!") {
		1940	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1941	cf::sync_job { prepare_random_map $exit };
		1942	}
		1943
		1944	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1945	my $hp = $exit->stats->hp;
		1946	my $sp = $exit->stats->sp;
		1947
1531	$self->enter_link;	1948	$self->enter_link;
1532		1949
1533	(Coro::async {	1950	(async {
		1951	$self->deactivate_recursive; # just to be sure
1534	unless (eval {	1952	unless (eval {
1535		1953	$self->goto ($slaying, $hp, $sp);
1536	prepare_random_map $exit
1537	if $exit->slaying eq "/!";
1538
1539	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1540	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1541		1954
1542	1;	1955	1;
1543	}) {	1956	}) {
1544	$self->message ("Something went wrong deep within the crossfire server. "	1957	$self->message ("Something went wrong deep within the crossfire server. "
1545	. "I'll try to bring you back to the map you were before. "	1958	. "I'll try to bring you back to the map you were before. "
1546	. "Please report this to the dungeon master",	1959	. "Please report this to the dungeon master!",
1547	cf::NDI_UNIQUE | cf::NDI_RED);	1960	cf::NDI_UNIQUE | cf::NDI_RED);
1548		1961
1549	warn "ERROR in enter_exit: $@";	1962	warn "ERROR in enter_exit: $@";
1550	$self->leave_link;	1963	$self->leave_link;
1551	}	1964	}
…		…
1602	on_reply => sub {	2015	on_reply => sub {
1603	my ($ns, $msg) = @_;	2016	my ($ns, $msg) = @_;
1604		2017
1605	# this weird shuffling is so that direct followup queries	2018	# this weird shuffling is so that direct followup queries
1606	# get handled first	2019	# get handled first
1607	my $queue = delete $ns->{query_queue};	2020	my $queue = delete $ns->{query_queue}
		2021	or return; # be conservative, not sure how that can happen, but we saw a crash here
1608		2022
1609	(shift @$queue)->[1]->($msg);	2023	(shift @$queue)->[1]->($msg);
		2024	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1610		2025
1611	push @{ $ns->{query_queue} }, @$queue;	2026	push @{ $ns->{query_queue} }, @$queue;
1612		2027
1613	if (@{ $ns->{query_queue} } == @$queue) {	2028	if (@{ $ns->{query_queue} } == @$queue) {
1614	if (@$queue) {	2029	if (@$queue) {
…		…
1618	}	2033	}
1619	}	2034	}
1620	},	2035	},
1621	);	2036	);
1622		2037
1623	=item $client->coro (\&cb)	2038	=item $client->async (\&cb)
1624		2039
1625	Create a new coroutine, running the specified callback. The coroutine will	2040	Create a new coroutine, running the specified callback. The coroutine will
1626	be automatically cancelled when the client gets destroyed (e.g. on logout,	2041	be automatically cancelled when the client gets destroyed (e.g. on logout,
1627	or loss of connection).	2042	or loss of connection).
1628		2043
1629	=cut	2044	=cut
1630		2045
1631	sub cf::client::coro {	2046	sub cf::client::async {
1632	my ($self, $cb) = @_;	2047	my ($self, $cb) = @_;
1633		2048
1634	my $coro; $coro = async {	2049	my $coro = &Coro::async ($cb);
1635	eval {
1636	$cb->();
1637	};
1638	warn $@ if $@;
1639	};
1640		2050
1641	$coro->on_destroy (sub {	2051	$coro->on_destroy (sub {
1642	delete $self->{_coro}{$coro+0};	2052	delete $self->{_coro}{$coro+0};
1643	});	2053	});
1644		2054
…		…
1780	The parameter C<$family> should best start with the name of the extension	2190	The parameter C<$family> should best start with the name of the extension
1781	using it, it should be unique.	2191	using it, it should be unique.
1782		2192
1783	=over 4	2193	=over 4
1784		2194
1785	=item $hashref = cf::db_get $family
1786
1787	Return a hashref for use by the extension C<$family>, which can be
1788	modified. After modifications, you have to call C<cf::db_dirty> or
1789	C<cf::db_sync>.
1790
1791	=item $value = cf::db_get $family => $key	2195	=item $value = cf::db_get $family => $key
1792		2196
1793	Returns a single value from the database	2197	Returns a single value from the database.
1794
1795	=item cf::db_put $family => $hashref
1796
1797	Stores the given family hashref into the database. Updates are delayed, if
1798	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1799		2198
1800	=item cf::db_put $family => $key => $value	2199	=item cf::db_put $family => $key => $value
1801		2200
1802	Stores the given C<$value> in the family hash. Updates are delayed, if you	2201	Stores the given C<$value> in the family.
1803	want the data to be synced to disk immediately, use C<cf::db_sync>.
1804
1805	=item cf::db_dirty
1806
1807	Marks the database as dirty, to be updated at a later time.
1808
1809	=item cf::db_sync
1810
1811	Immediately write the database to disk I<if it is dirty>.
1812		2202
1813	=cut	2203	=cut
1814		2204
1815	our $DB;	2205	our $DB;
1816		2206
1817	{	2207	sub db_init {
		2208	unless ($DB) {
		2209	$DB = BDB::db_create $DB_ENV;
		2210
		2211	cf::sync_job {
		2212	eval {
		2213	$DB->set_flags (BDB::CHKSUM);
		2214
		2215	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2216	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2217	cf::cleanup "db_open(db): $!" if $!;
		2218	};
		2219	cf::cleanup "db_open(db): $@" if $@;
		2220	};
		2221
1818	my $path = cf::localdir . "/database.pst";	2222	my $path = cf::localdir . "/database.pst";
		2223	if (stat $path) {
		2224	cf::sync_job {
		2225	my $pst = Storable::retrieve $path;
1819		2226
1820	sub db_load() {	2227	cf::db_put (board => data => $pst->{board});
1821	warn "loading database $path\n";#d# remove later	2228	cf::db_put (guildrules => data => $pst->{guildrules});
1822	$DB = stat $path ? Storable::retrieve $path : { };	2229	cf::db_put (rent => balance => $pst->{rent}{balance});
1823	}	2230	BDB::db_env_txn_checkpoint $DB_ENV;
1824		2231
1825	my $pid;	2232	unlink $path;
1826
1827	sub db_save() {
1828	warn "saving database $path\n";#d# remove later
1829	waitpid $pid, 0 if $pid;
1830	if (0 == ($pid = fork)) {
1831	$DB->{_meta}{version} = 1;
1832	Storable::nstore $DB, "$path~";
1833	rename "$path~", $path;
1834	cf::_exit 0 if defined $pid;
1835	}	2233	};
1836	}
1837
1838	my $dirty;
1839
1840	sub db_sync() {
1841	db_save if $dirty;
1842	undef $dirty;
1843	}
1844
1845	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1846	db_sync;
1847	});
1848
1849	sub db_dirty() {
1850	$dirty = 1;
1851	$idle->start;
1852	}
1853
1854	sub db_get($;$) {
1855	@_ >= 2
1856	? $DB->{$_[0]}{$_[1]}
1857	: ($DB->{$_[0]} ||= { })
1858	}
1859
1860	sub db_put($$;$) {
1861	if (@_ >= 3) {
1862	$DB->{$_[0]}{$_[1]} = $_[2];
1863	} else {
1864	$DB->{$_[0]} = $_[1];
1865	}
1866	db_dirty;
1867	}
1868
1869	cf::global->attach (
1870	prio => 10000,
1871	on_cleanup => sub {
1872	db_sync;
1873	},	2234	}
1874	);	2235	}
		2236	}
		2237
		2238	sub db_get($$) {
		2239	my $key = "$_[0]/$_[1]";
		2240
		2241	cf::sync_job {
		2242	BDB::db_get $DB, undef, $key, my $data;
		2243
		2244	$! ? ()
		2245	: Compress::LZF::sthaw $data
		2246	}
		2247	}
		2248
		2249	sub db_put($$$) {
		2250	BDB::dbreq_pri 4;
		2251	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1875	}	2252	}
1876		2253
1877	#############################################################################	2254	#############################################################################
1878	# the server's main()	2255	# the server's init and main functions
		2256
		2257	sub init_resources {
		2258	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2259	or die "unable to load regions file\n";#d#
		2260	}
1879		2261
1880	sub cfg_load {	2262	sub cfg_load {
1881	open my $fh, "<:utf8", cf::confdir . "/config"	2263	open my $fh, "<:utf8", cf::confdir . "/config"
1882	or return;	2264	or return;
1883		2265
1884	local $/;	2266	local $/;
1885	*CFG = YAML::Syck::Load <$fh>;	2267	*CFG = YAML::Syck::Load <$fh>;
		2268
		2269	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2270
		2271	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2272	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2273
		2274	if (exists $CFG{mlockall}) {
		2275	eval {
		2276	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2277	and die "WARNING: m(un)lockall failed: $!\n";
		2278	};
		2279	warn $@ if $@;
		2280	}
		2281	}
		2282
		2283	sub init {
		2284	init_resources;
1886	}	2285	}
1887		2286
1888	sub main {	2287	sub main {
1889	# we must not ever block the main coroutine	2288	# we must not ever block the main coroutine
1890	local $Coro::idle = sub {	2289	local $Coro::idle = sub {
1891	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2290	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1892	(Coro::unblock_sub {	2291	(async {
1893	Event::one_event;	2292	Event::one_event;
1894	})->();	2293	})->prio (Coro::PRIO_MAX);
1895	};	2294	};
1896		2295
1897	cfg_load;	2296	cfg_load;
1898	db_load;	2297	db_init;
1899	load_extensions;	2298	load_extensions;
		2299
		2300	$TICK_WATCHER->start;
1900	Event::loop;	2301	Event::loop;
1901	}	2302	}
1902		2303
1903	#############################################################################	2304	#############################################################################
1904	# initialisation	2305	# initialisation and cleanup
		2306
		2307	# install some emergency cleanup handlers
		2308	BEGIN {
		2309	for my $signal (qw(INT HUP TERM)) {
		2310	Event->signal (
		2311	reentrant => 0,
		2312	data => WF_AUTOCANCEL,
		2313	signal => $signal,
		2314	prio => 0,
		2315	cb => sub {
		2316	cf::cleanup "SIG$signal";
		2317	},
		2318	);
		2319	}
		2320	}
		2321
		2322	sub emergency_save() {
		2323	my $freeze_guard = cf::freeze_mainloop;
		2324
		2325	warn "enter emergency perl save\n";
		2326
		2327	cf::sync_job {
		2328	# use a peculiar iteration method to avoid tripping on perl
		2329	# refcount bugs in for. also avoids problems with players
		2330	# and maps saved/destroyed asynchronously.
		2331	warn "begin emergency player save\n";
		2332	for my $login (keys %cf::PLAYER) {
		2333	my $pl = $cf::PLAYER{$login} or next;
		2334	$pl->valid or next;
		2335	$pl->save;
		2336	}
		2337	warn "end emergency player save\n";
		2338
		2339	warn "begin emergency map save\n";
		2340	for my $path (keys %cf::MAP) {
		2341	my $map = $cf::MAP{$path} or next;
		2342	$map->valid or next;
		2343	$map->save;
		2344	}
		2345	warn "end emergency map save\n";
		2346
		2347	warn "begin emergency database checkpoint\n";
		2348	BDB::db_env_txn_checkpoint $DB_ENV;
		2349	warn "end emergency database checkpoint\n";
		2350	};
		2351
		2352	warn "leave emergency perl save\n";
		2353	}
		2354
		2355	sub post_cleanup {
		2356	my ($make_core) = @_;
		2357
		2358	warn Carp::longmess "post_cleanup backtrace"
		2359	if $make_core;
		2360	}
1905		2361
1906	sub reload() {	2362	sub reload() {
1907	# can/must only be called in main	2363	# can/must only be called in main
1908	if ($Coro::current != $Coro::main) {	2364	if ($Coro::current != $Coro::main) {
1909	warn "can only reload from main coroutine\n";	2365	warn "can only reload from main coroutine";
1910	return;	2366	return;
1911	}	2367	}
1912		2368
1913	warn "reloading...";	2369	warn "reloading...";
1914		2370
1915	local $FREEZE = 1;	2371	warn "entering sync_job";
		2372
		2373	cf::sync_job {
		2374	cf::write_runtime; # external watchdog should not bark
1916	cf::emergency_save;	2375	cf::emergency_save;
		2376	cf::write_runtime; # external watchdog should not bark
1917		2377
1918	eval {	2378	warn "syncing database to disk";
		2379	BDB::db_env_txn_checkpoint $DB_ENV;
		2380
1919	# if anything goes wrong in here, we should simply crash as we already saved	2381	# if anything goes wrong in here, we should simply crash as we already saved
1920		2382
1921	# cancel all watchers	2383	warn "cancelling all WF_AUTOCANCEL watchers";
1922	for (Event::all_watchers) {	2384	for (Event::all_watchers) {
1923	$_->cancel if $_->data & WF_AUTOCANCEL;	2385	$_->cancel if $_->data & WF_AUTOCANCEL;
1924	}	2386	}
1925		2387
		2388	warn "flushing outstanding aio requests";
		2389	for (;;) {
		2390	BDB::flush;
		2391	IO::AIO::flush;
		2392	Coro::cede;
		2393	last unless IO::AIO::nreqs || BDB::nreqs;
		2394	warn "iterate...";
		2395	}
		2396
1926	# cancel all extension coros	2397	warn "cancelling all extension coros";
1927	$_->cancel for values %EXT_CORO;	2398	$_->cancel for values %EXT_CORO;
1928	%EXT_CORO = ();	2399	%EXT_CORO = ();
1929		2400
1930	# unload all extensions	2401	warn "removing commands";
1931	for (@exts) {	2402	%COMMAND = ();
		2403
		2404	warn "removing ext commands";
		2405	%EXTCMD = ();
		2406
		2407	warn "unloading/nuking all extensions";
		2408	for my $pkg (@EXTS) {
1932	warn "unloading <$_>";	2409	warn "... unloading $pkg";
1933	unload_extension $_;	2410
		2411	if (my $cb = $pkg->can ("unload")) {
		2412	eval {
		2413	$cb->($pkg);
		2414	1
		2415	} or warn "$pkg unloaded, but with errors: $@";
1934	}	2416	}
1935		2417
		2418	warn "... nuking $pkg";
		2419	Symbol::delete_package $pkg;
		2420	}
		2421
1936	# unload all modules loaded from $LIBDIR	2422	warn "unloading all perl modules loaded from $LIBDIR";
1937	while (my ($k, $v) = each %INC) {	2423	while (my ($k, $v) = each %INC) {
1938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2424	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1939		2425
1940	warn "removing <$k>";	2426	warn "... unloading $k";
1941	delete $INC{$k};	2427	delete $INC{$k};
1942		2428
1943	$k =~ s/\.pm$//;	2429	$k =~ s/\.pm$//;
1944	$k =~ s/\//::/g;	2430	$k =~ s/\//::/g;
1945		2431
…		…
1948	}	2434	}
1949		2435
1950	Symbol::delete_package $k;	2436	Symbol::delete_package $k;
1951	}	2437	}
1952		2438
1953	# sync database to disk
1954	cf::db_sync;
1955	IO::AIO::flush;
1956
1957	# get rid of safe::, as good as possible	2439	warn "getting rid of safe::, as good as possible";
1958	Symbol::delete_package "safe::$_"	2440	Symbol::delete_package "safe::$_"
1959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2441	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1960		2442
1961	# remove register_script_function callbacks
1962	# TODO
1963
1964	# unload cf.pm "a bit"	2443	warn "unloading cf.pm \"a bit\"";
1965	delete $INC{"cf.pm"};	2444	delete $INC{"cf.pm"};
1966		2445
1967	# don't, removes xs symbols, too,	2446	# don't, removes xs symbols, too,
1968	# and global variables created in xs	2447	# and global variables created in xs
1969	#Symbol::delete_package __PACKAGE__;	2448	#Symbol::delete_package __PACKAGE__;
1970		2449
1971	# reload cf.pm	2450	warn "unload completed, starting to reload now";
		2451
1972	warn "reloading cf.pm";	2452	warn "reloading cf.pm";
1973	require cf;	2453	require cf;
1974	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2454	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1975		2455
1976	# load config and database again	2456	warn "loading config and database again";
1977	cf::cfg_load;	2457	cf::cfg_load;
1978	cf::db_load;
1979		2458
1980	# load extensions
1981	warn "load extensions";	2459	warn "loading extensions";
1982	cf::load_extensions;	2460	cf::load_extensions;
1983		2461
1984	# reattach attachments to objects	2462	warn "reattaching attachments to objects/players";
1985	warn "reattach";
1986	_global_reattach;	2463	_global_reattach;
1987	};	2464	warn "reattaching attachments to maps";
		2465	reattach $_ for values %MAP;
1988		2466
1989	if ($@) {	2467	warn "loading reloadable resources";
		2468	init_resources;
		2469
		2470	warn "leaving sync_job";
		2471
		2472	1
		2473	} or do {
1990	warn $@;	2474	warn $@;
1991	warn "error while reloading, exiting.";	2475	warn "error while reloading, exiting.";
1992	exit 1;	2476	exit 1;
1993	}	2477	};
1994		2478
1995	warn "reloaded successfully";	2479	warn "reloaded";
1996	};	2480	};
1997		2481
1998	#############################################################################	2482	our $RELOAD_WATCHER; # used only during reload
1999
2000	unless ($LINK_MAP) {
2001	$LINK_MAP = cf::map::new;
2002
2003	$LINK_MAP->width (41);
2004	$LINK_MAP->height (41);
2005	$LINK_MAP->alloc;
2006	$LINK_MAP->path ("{link}");
2007	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2008	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2009
2010	# dirty hack because... archetypes are not yet loaded
2011	Event->timer (
2012	after => 2,
2013	cb => sub {
2014	$_[0]->w->cancel;
2015
2016	# provide some exits "home"
2017	my $exit = cf::object::new "exit";
2018
2019	$exit->slaying ($EMERGENCY_POSITION->[0]);
2020	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2021	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2022
2023	$LINK_MAP->insert ($exit->clone, 19, 19);
2024	$LINK_MAP->insert ($exit->clone, 19, 20);
2025	$LINK_MAP->insert ($exit->clone, 19, 21);
2026	$LINK_MAP->insert ($exit->clone, 20, 19);
2027	$LINK_MAP->insert ($exit->clone, 20, 21);
2028	$LINK_MAP->insert ($exit->clone, 21, 19);
2029	$LINK_MAP->insert ($exit->clone, 21, 20);
2030	$LINK_MAP->insert ($exit->clone, 21, 21);
2031
2032	$exit->destroy;
2033	});
2034
2035	$LINK_MAP->{deny_save} = 1;
2036	$LINK_MAP->{deny_reset} = 1;
2037
2038	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2039	}
2040
2041	register "<global>", __PACKAGE__;
2042		2483
2043	register_command "reload" => sub {	2484	register_command "reload" => sub {
2044	my ($who, $arg) = @_;	2485	my ($who, $arg) = @_;
2045		2486
2046	if ($who->flag (FLAG_WIZ)) {	2487	if ($who->flag (FLAG_WIZ)) {
2047	$who->message ("start of reload.");	2488	$who->message ("reloading server.");
		2489
		2490	# doing reload synchronously and two reloads happen back-to-back,
		2491	# coro crashes during coro_state_free->destroy here.
		2492
		2493	$RELOAD_WATCHER ||= Event->timer (
		2494	reentrant => 0,
		2495	after => 0,
		2496	data => WF_AUTOCANCEL,
		2497	cb => sub {
2048	reload;	2498	reload;
2049	$who->message ("end of reload.");	2499	undef $RELOAD_WATCHER;
		2500	},
		2501	);
2050	}	2502	}
2051	};	2503	};
2052		2504
2053	unshift @INC, $LIBDIR;	2505	unshift @INC, $LIBDIR;
		2506
		2507	my $bug_warning = 0;
2054		2508
2055	$TICK_WATCHER = Event->timer (	2509	$TICK_WATCHER = Event->timer (
2056	reentrant => 0,	2510	reentrant => 0,
		2511	parked => 1,
2057	prio => 0,	2512	prio => 0,
2058	at => $NEXT_TICK || $TICK,	2513	at => $NEXT_TICK || $TICK,
2059	data => WF_AUTOCANCEL,	2514	data => WF_AUTOCANCEL,
2060	cb => sub {	2515	cb => sub {
2061	unless ($FREEZE) {	2516	if ($Coro::current != $Coro::main) {
		2517	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2518	unless ++$bug_warning > 10;
		2519	return;
		2520	}
		2521
		2522	$NOW = Event::time;
		2523
2062	cf::server_tick; # one server iteration	2524	cf::server_tick; # one server iteration
2063	$RUNTIME += $TICK;	2525	$RUNTIME += $TICK;
2064	}
2065
2066	$NEXT_TICK += $TICK;	2526	$NEXT_TICK += $TICK;
		2527
		2528	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2529	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2530	Coro::async_pool {
		2531	write_runtime
		2532	or warn "ERROR: unable to write runtime file: $!";
		2533	};
		2534	}
		2535
		2536	$WAIT_FOR_TICK->broadcast;
		2537	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2538
		2539	# my $AFTER = Event::time;
		2540	# warn $AFTER - $NOW;#d#
2067		2541
2068	# if we are delayed by four ticks or more, skip them all	2542	# if we are delayed by four ticks or more, skip them all
2069	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2543	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2070		2544
2071	$TICK_WATCHER->at ($NEXT_TICK);	2545	$TICK_WATCHER->at ($NEXT_TICK);
2072	$TICK_WATCHER->start;	2546	$TICK_WATCHER->start;
2073	},	2547	},
2074	);	2548	);
2075		2549
		2550	{
2076	IO::AIO::max_poll_time $TICK * 0.2;	2551	BDB::max_poll_time $TICK * 0.1;
2077		2552	$BDB_POLL_WATCHER = Event->io (
2078	Event->io (	2553	reentrant => 0,
2079	fd => IO::AIO::poll_fileno,	2554	fd => BDB::poll_fileno,
2080	poll => 'r',	2555	poll => 'r',
2081	prio => 5,	2556	prio => 0,
2082	data => WF_AUTOCANCEL,
2083	cb => \&IO::AIO::poll_cb,
2084	);
2085
2086	Event->timer (
2087	data => WF_AUTOCANCEL,	2557	data => WF_AUTOCANCEL,
2088	after => 0,	2558	cb => \&BDB::poll_cb,
2089	interval => 10,	2559	);
2090	cb => sub {	2560	BDB::min_parallel 8;
2091	(Coro::unblock_sub {	2561
2092	write_runtime	2562	BDB::set_sync_prepare {
2093	or warn "ERROR: unable to write runtime file: $!";	2563	my $status;
		2564	my $current = $Coro::current;
		2565	(
		2566	sub {
		2567	$status = $!;
		2568	$current->ready; undef $current;
		2569	},
		2570	sub {
		2571	Coro::schedule while defined $current;
		2572	$! = $status;
		2573	},
		2574	)
		2575	};
		2576
		2577	unless ($DB_ENV) {
		2578	$DB_ENV = BDB::db_env_create;
		2579
		2580	cf::sync_job {
		2581	eval {
		2582	BDB::db_env_open
		2583	$DB_ENV,
		2584	$BDB_ENV_DIR,
		2585	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2586	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2587	0666;
		2588
		2589	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2590
		2591	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2592	$DB_ENV->set_lk_detect;
		2593	};
		2594
		2595	cf::cleanup "db_env_open(db): $@" if $@;
2094	})->();	2596	};
2095	},	2597	}
2096	);	2598	}
		2599
		2600	{
		2601	IO::AIO::min_parallel 8;
		2602
		2603	undef $Coro::AIO::WATCHER;
		2604	IO::AIO::max_poll_time $TICK * 0.1;
		2605	$AIO_POLL_WATCHER = Event->io (
		2606	reentrant => 0,
		2607	data => WF_AUTOCANCEL,
		2608	fd => IO::AIO::poll_fileno,
		2609	poll => 'r',
		2610	prio => 6,
		2611	cb => \&IO::AIO::poll_cb,
		2612	);
		2613	}
		2614
		2615	END { cf::emergency_save }
2097		2616
2098	1	2617	1
2099		2618

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