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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.114 by root, Mon Jan 1 16:00:10 2007 UTC vs.
Revision 1.216 by root, Thu Feb 15 14:30:21 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;
…		…
258	my $runtime = cf::localdir . "/runtime";	359	my $runtime = cf::localdir . "/runtime";
259		360
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	362	or return;
262		363
		364	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	365	# 10 is the runtime save interval, for a monotonic clock
		366	# 60 allows for the watchdog to kill the server.
		367
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	368	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	369	and return;
266		370
		371	# always fsync - this file is important
267	aio_fsync $fh	372	aio_fsync $fh
268	and return;	373	and return;
269		374
270	close $fh	375	close $fh
271	or return;	376	or return;
…		…
277	}	382	}
278		383
279	=back	384	=back
280		385
281	=cut	386	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($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		387
403	#############################################################################	388	#############################################################################
404		389
405	=head2 ATTACHABLE OBJECTS	390	=head2 ATTACHABLE OBJECTS
406		391
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	517	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	518	our @CB_MAP = ();
534		519
535	my %attachment;	520	my %attachment;
536		521
		522	sub cf::attachable::thawer_merge {
		523	# simply override everything except _meta
		524	local $_[0]{_meta};
		525	%{$_[0]} = %{$_[1]};
		526	}
		527
537	sub _attach_cb($$$$) {	528	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	529	my ($registry, $event, $prio, $cb) = @_;
539		530
540	use sort 'stable';	531	use sort 'stable';
541		532
…		…
712	# object support	703	# object support
713		704
714	sub reattach {	705	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	706	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	707	my ($obj) = @_;
		708
		709	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		710
718	my $registry = $obj->registry;	711	my $registry = $obj->registry;
719		712
720	@$registry = ();	713	@$registry = ();
721		714
…		…
768	$filename, length $$rdata, scalar @$objs;	761	$filename, length $$rdata, scalar @$objs;
769		762
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	763	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	764	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	765	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	766	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	767	close $fh;
775		768
776	if (@$objs) {	769	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	770	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	771	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	772	my $data = Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	773	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	774	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	775	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	776	aio_rename "$filename.pst~", "$filename.pst";
784	}	777	}
785	} else {	778	} else {
786	aio_unlink "$filename.pst";	779	aio_unlink "$filename.pst";
…		…
817	(aio_load "$filename.pst", $av) >= 0	810	(aio_load "$filename.pst", $av) >= 0
818	or return;	811	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	812	$av = eval { (Storable::thaw $av)->{objs} };
820	}	813	}
821		814
		815	warn sprintf "loading %s (%d)\n",
		816	$filename, length $data, scalar @{$av || []};#d#
822	return ($data, $av);	817	return ($data, $av);
823	}	818	}
824		819
825	#############################################################################	820	#############################################################################
826	# command handling &c	821	# command handling &c
…		…
851	=cut	846	=cut
852		847
853	sub register_extcmd {	848	sub register_extcmd {
854	my ($name, $cb) = @_;	849	my ($name, $cb) = @_;
855		850
856	my $caller = caller;
857	#warn "registering extcmd '$name' to '$caller'";
858
859	$EXTCMD{$name} = [$cb, $caller];	851	$EXTCMD{$name} = $cb;
860	}	852	}
861		853
862	cf::player->attach (	854	cf::player->attach (
863	on_command => sub {	855	on_command => sub {
864	my ($pl, $name, $params) = @_;	856	my ($pl, $name, $params) = @_;
…		…
877		869
878	my $msg = eval { from_json $buf };	870	my $msg = eval { from_json $buf };
879		871
880	if (ref $msg) {	872	if (ref $msg) {
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
882	if (my %reply = $cb->[0]->($pl, $msg)) {	874	if (my %reply = $cb->($pl, $msg)) {
883	$pl->ext_reply ($msg->{msgid}, %reply);	875	$pl->ext_reply ($msg->{msgid}, %reply);
884	}	876	}
885	}	877	}
886	} else {	878	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
889		881
890	cf::override;	882	cf::override;
891	},	883	},
892	);	884	);
893		885
894	sub register {
895	my ($base, $pkg) = @_;
896
897	#TODO
898	}
899
900	sub load_extension {	886	sub load_extension {
901	my ($path) = @_;	887	my ($path) = @_;
902		888
903	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
904	my $base = $1;	890	my $base = $1;
905	my $pkg = $1;	891	my $pkg = $1;
906	$pkg =~ s/[^[:word:]]/_/g;	892	$pkg =~ s/[^[:word:]]/_/g;
907	$pkg = "ext::$pkg";	893	$pkg = "ext::$pkg";
908		894
909	warn "loading '$path' into '$pkg'\n";	895	warn "... loading '$path' into '$pkg'\n";
910		896
911	open my $fh, "<:utf8", $path	897	open my $fh, "<:utf8", $path
912	or die "$path: $!";	898	or die "$path: $!";
913		899
914	my $source =	900	my $source =
915	"package $pkg; use strict; use utf8;\n"	901	"package $pkg; use strict; use utf8;\n"
916	. "#line 1 \"$path\"\n{\n"	902	. "#line 1 \"$path\"\n{\n"
917	. (do { local $/; <$fh> })	903	. (do { local $/; <$fh> })
918	. "\n};\n1";	904	. "\n};\n1";
919		905
920	eval $source	906	unless (eval $source) {
921	or die $@ ? "$path: $@\n"	907	my $msg = $@ ? "$path: $@\n"
922	: "extension disabled.\n";	908	: "extension disabled.\n";
923		909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
924	push @exts, $pkg;	910	warn $@;
925	$ext_pkg{$base} = $pkg;	911	warn "mandatory extension failed to load, exiting.\n";
926		912	exit 1;
927	# no strict 'refs';	913	}
928	# @{"$pkg\::ISA"} = ext::;	914	die $@;
929
930	register $base, $pkg;
931	}
932
933	sub unload_extension {
934	my ($pkg) = @_;
935
936	warn "removing extension $pkg\n";
937
938	# remove hooks
939	#TODO
940	# for my $idx (0 .. $#PLUGIN_EVENT) {
941	# delete $hook[$idx]{$pkg};
942	# }	915	}
943		916
944	# remove commands	917	push @EXTS, $pkg;
945	for my $name (keys %COMMAND) {
946	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
947
948	if (@cb) {
949	$COMMAND{$name} = \@cb;
950	} else {
951	delete $COMMAND{$name};
952	}
953	}
954
955	# remove extcmds
956	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
957	delete $EXTCMD{$name};
958	}
959
960	if (my $cb = $pkg->can ("unload")) {
961	eval {
962	$cb->($pkg);
963	1
964	} or warn "$pkg unloaded, but with errors: $@";
965	}
966
967	Symbol::delete_package $pkg;
968	}	918	}
969		919
970	sub load_extensions {	920	sub load_extensions {
971	for my $ext (<$LIBDIR/*.ext>) {	921	for my $ext (<$LIBDIR/*.ext>) {
972	next unless -r $ext;	922	next unless -r $ext;
…		…
976	} or warn "$ext not loaded: $@";	926	} or warn "$ext not loaded: $@";
977	}	927	}
978	}	928	}
979		929
980	#############################################################################	930	#############################################################################
981	# load/save/clean perl data associated with a map
982
983	*cf::mapsupport::on_clean = sub {
984	my ($map) = @_;
985
986	my $path = $map->tmpname;
987	defined $path or return;
988
989	unlink "$path.pst";
990	};
991
992	cf::map->attach (prio => -10000, package => cf::mapsupport::);
993
994	#############################################################################
995	# load/save perl data associated with player->ob objects
996
997	sub all_objects(@) {
998	@_, map all_objects ($_->inv), @_
999	}
1000
1001	# TODO: compatibility cruft, remove when no longer needed
1002	cf::player->attach (
1003	on_load => sub {
1004	my ($pl, $path) = @_;
1005
1006	for my $o (all_objects $pl->ob) {
1007	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1008	$o->set_ob_key_value ("_perl_data");
1009
1010	%$o = %{ Storable::thaw pack "H*", $value };
1011	}
1012	}
1013	},
1014	);
1015
1016	#############################################################################
1017		931
1018	=head2 CORE EXTENSIONS	932	=head2 CORE EXTENSIONS
1019		933
1020	Functions and methods that extend core crossfire objects.	934	Functions and methods that extend core crossfire objects.
1021		935
		936	=cut
		937
		938	package cf::player;
		939
		940	use Coro::AIO;
		941
1022	=head3 cf::player	942	=head3 cf::player
1023		943
1024	=over 4	944	=over 4
1025		945
1026	=item cf::player::exists $login	946	=item cf::player::find $login
1027		947
1028	Returns true when the given account exists.	948	Returns the given player object, loading it if necessary (might block).
1029		949
1030	=cut	950	=cut
1031		951
1032	sub cf::player::exists($) {	952	sub playerdir($) {
1033	cf::player::find $_[0]	953	cf::localdir
1034	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	954	. "/"
		955	. cf::playerdir
		956	. "/"
		957	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		958	}
		959
		960	sub path($) {
		961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		962
		963	(playerdir $login) . "/$login.pl"
		964	}
		965
		966	sub find_active($) {
		967	$cf::PLAYER{$_[0]}
		968	and $cf::PLAYER{$_[0]}->active
		969	and $cf::PLAYER{$_[0]}
		970	}
		971
		972	sub exists($) {
		973	my ($login) = @_;
		974
		975	$cf::PLAYER{$login}
		976	or cf::sync_job { !aio_stat path $login }
		977	}
		978
		979	sub find($) {
		980	return $cf::PLAYER{$_[0]} || do {
		981	my $login = $_[0];
		982
		983	my $guard = cf::lock_acquire "user_find:$login";
		984
		985	$cf::PLAYER{$_[0]} || do {
		986	my $pl = load_pl path $login
		987	or return;
		988	$cf::PLAYER{$login} = $pl
		989	}
		990	}
		991	}
		992
		993	sub save($) {
		994	my ($pl) = @_;
		995
		996	return if $pl->{deny_save};
		997
		998	my $path = path $pl;
		999	my $guard = cf::lock_acquire "user_save:$path";
		1000
		1001	return if $pl->{deny_save};
		1002
		1003	aio_mkdir playerdir $pl, 0770;
		1004	$pl->{last_save} = $cf::RUNTIME;
		1005
		1006	$pl->save_pl ($path);
		1007	Coro::cede;
		1008	}
		1009
		1010	sub new($) {
		1011	my ($login) = @_;
		1012
		1013	my $self = create;
		1014
		1015	$self->ob->name ($login);
		1016	$self->{deny_save} = 1;
		1017
		1018	$cf::PLAYER{$login} = $self;
		1019
		1020	$self
		1021	}
		1022
		1023	=item $pl->quit_character
		1024
		1025	Nukes the player without looking back. If logged in, the connection will
		1026	be destroyed. May block for a long time.
		1027
		1028	=cut
		1029
		1030	sub quit_character {
		1031	my ($pl) = @_;
		1032
		1033	$pl->{deny_save} = 1;
		1034	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1035
		1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1037	$pl->deactivate;
		1038	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1039	$pl->ns->destroy if $pl->ns;
		1040
		1041	my $path = playerdir $pl;
		1042	my $temp = "$path~$cf::RUNTIME~deleting~";
		1043	aio_rename $path, $temp;
		1044	delete $cf::PLAYER{$pl->ob->name};
		1045	$pl->destroy;
		1046	IO::AIO::aio_rmtree $temp;
		1047	}
		1048
		1049	=item cf::player::list_logins
		1050
		1051	Returns am arrayref of all valid playernames in the system, can take a
		1052	while and may block, so not sync_job-capable, ever.
		1053
		1054	=cut
		1055
		1056	sub list_logins {
		1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1058	or return [];
		1059
		1060	my @logins;
		1061
		1062	for my $login (@$dirs) {
		1063	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1064	aio_read $fh, 0, 512, my $buf, 0 or next;
		1065	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1066
		1067	utf8::decode $login;
		1068	push @logins, $login;
		1069	}
		1070
		1071	\@logins
		1072	}
		1073
		1074	=item $player->maps
		1075
		1076	Returns an arrayref of map paths that are private for this
		1077	player. May block.
		1078
		1079	=cut
		1080
		1081	sub maps($) {
		1082	my ($pl) = @_;
		1083
		1084	$pl = ref $pl ? $pl->ob->name : $pl;
		1085
		1086	my $files = aio_readdir playerdir $pl
		1087	or return;
		1088
		1089	my @paths;
		1090
		1091	for (@$files) {
		1092	utf8::decode $_;
		1093	next if /\.(?:pl|pst)$/;
		1094	next unless /^$PATH_SEP/o;
		1095
		1096	push @paths, cf::map::normalise "~$pl/$_";
		1097	}
		1098
		1099	\@paths
1035	}	1100	}
1036		1101
1037	=item $player->ext_reply ($msgid, $msgtype, %msg)	1102	=item $player->ext_reply ($msgid, $msgtype, %msg)
1038		1103
1039	Sends an ext reply to the player.	1104	Sends an ext reply to the player.
1040		1105
1041	=cut	1106	=cut
1042		1107
1043	sub cf::player::ext_reply($$$%) {	1108	sub ext_reply($$$%) {
1044	my ($self, $id, %msg) = @_;	1109	my ($self, $id, %msg) = @_;
1045		1110
1046	$msg{msgid} = $id;	1111	$msg{msgid} = $id;
1047		1112
1048	$self->send ("ext " . to_json \%msg);	1113	$self->send ("ext " . cf::to_json \%msg);
1049	}	1114	}
		1115
		1116	package cf;
1050		1117
1051	=back	1118	=back
1052		1119
1053		1120
1054	=head3 cf::map	1121	=head3 cf::map
…		…
1060	package cf::map;	1127	package cf::map;
1061		1128
1062	use Fcntl;	1129	use Fcntl;
1063	use Coro::AIO;	1130	use Coro::AIO;
1064		1131
		1132	use overload
		1133	'""' => \&as_string,
		1134	fallback => 1;
		1135
1065	our $MAX_RESET = 7200;	1136	our $MAX_RESET = 3600;
1066	our $DEFAULT_RESET = 3600;	1137	our $DEFAULT_RESET = 3000;
1067		1138
1068	sub generate_random_map {	1139	sub generate_random_map {
1069	my ($path, $rmp) = @_;	1140	my ($self, $rmp) = @_;
1070
1071	# mit "rum" bekleckern, nicht	1141	# mit "rum" bekleckern, nicht
1072	cf::map::_create_random_map	1142	$self->_create_random_map (
1073	$path,
1074	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1143	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1075	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1144	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1076	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1145	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1077	$rmp->{exit_on_final_map},	1146	$rmp->{exit_on_final_map},
1078	$rmp->{xsize}, $rmp->{ysize},	1147	$rmp->{xsize}, $rmp->{ysize},
1079	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1148	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1080	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1149	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1081	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1150	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1082	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1151	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1083	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1152	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1084	(cf::region::find $rmp->{region})	1153	(cf::region::find $rmp->{region}), $rmp->{custom}
		1154	)
		1155	}
		1156
		1157	=item cf::map->register ($regex, $prio)
		1158
		1159	Register a handler for the map path matching the given regex at the
		1160	givne priority (higher is better, built-in handlers have priority 0, the
		1161	default).
		1162
		1163	=cut
		1164
		1165	sub register {
		1166	my (undef, $regex, $prio) = @_;
		1167	my $pkg = caller;
		1168
		1169	no strict;
		1170	push @{"$pkg\::ISA"}, __PACKAGE__;
		1171
		1172	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1173	}
		1174
		1175	# also paths starting with '/'
		1176	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1177
		1178	sub thawer_merge {
		1179	my ($self, $merge) = @_;
		1180
		1181	# we have to keep some variables in memory intact
		1182	local $self->{path};
		1183	local $self->{load_path};
		1184	local $self->{deny_save};
		1185	local $self->{deny_reset};
		1186
		1187	$self->SUPER::thawer_merge ($merge);
		1188	}
		1189
		1190	sub normalise {
		1191	my ($path, $base) = @_;
		1192
		1193	$path = "$path"; # make sure its a string
		1194
		1195	$path =~ s/\.map$//;
		1196
		1197	# map plan:
		1198	#
		1199	# /! non-realised random map exit (special hack!)
		1200	# {... are special paths that are not being touched
		1201	# ?xxx/... are special absolute paths
		1202	# ?random/... random maps
		1203	# /... normal maps
		1204	# ~user/... per-player map of a specific user
		1205
		1206	$path =~ s/$PATH_SEP/\//go;
		1207
		1208	# treat it as relative path if it starts with
		1209	# something that looks reasonable
		1210	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1211	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1212
		1213	$base =~ s{[^/]+/?$}{};
		1214	$path = "$base/$path";
		1215	}
		1216
		1217	for ($path) {
		1218	redo if s{//}{/};
		1219	redo if s{/\.?/}{/};
		1220	redo if s{/[^/]+/\.\./}{/};
		1221	}
		1222
		1223	$path
		1224	}
		1225
		1226	sub new_from_path {
		1227	my (undef, $path, $base) = @_;
		1228
		1229	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1230
		1231	$path = normalise $path, $base;
		1232
		1233	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1234	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1235	my $self = bless cf::map::new, $pkg;
		1236	$self->{path} = $path; $self->path ($path);
		1237	$self->init; # pass $1 etc.
		1238	return $self;
		1239	}
		1240	}
		1241
		1242	Carp::carp "unable to resolve path '$path' (base '$base').";
		1243	()
		1244	}
		1245
		1246	sub init {
		1247	my ($self) = @_;
		1248
		1249	$self
		1250	}
		1251
		1252	sub as_string {
		1253	my ($self) = @_;
		1254
		1255	"$self->{path}"
		1256	}
		1257
		1258	# the displayed name, this is a one way mapping
		1259	sub visible_name {
		1260	&as_string
		1261	}
		1262
		1263	# the original (read-only) location
		1264	sub load_path {
		1265	my ($self) = @_;
		1266
		1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1268	}
		1269
		1270	# the temporary/swap location
		1271	sub save_path {
		1272	my ($self) = @_;
		1273
		1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1276	}
		1277
		1278	# the unique path, undef == no special unique path
		1279	sub uniq_path {
		1280	my ($self) = @_;
		1281
		1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1085	}	1284	}
1086		1285
1087	# and all this just because we cannot iterate over	1286	# and all this just because we cannot iterate over
1088	# all maps in C++...	1287	# all maps in C++...
1089	sub change_all_map_light {	1288	sub change_all_map_light {
1090	my ($change) = @_;	1289	my ($change) = @_;
1091		1290
1092	$_->change_map_light ($change) for values %cf::MAP;	1291	$_->change_map_light ($change)
		1292	for grep $_->outdoor, values %cf::MAP;
1093	}	1293	}
1094		1294
		1295	sub unlink_save {
		1296	my ($self) = @_;
		1297
		1298	utf8::encode (my $save = $self->save_path);
		1299	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1300	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1301	}
		1302
1095	sub try_load_header($) {	1303	sub load_header_from($) {
1096	my ($path) = @_;	1304	my ($self, $path) = @_;
1097		1305
1098	utf8::encode $path;	1306	utf8::encode $path;
1099	aio_open $path, O_RDONLY, 0	1307	#aio_open $path, O_RDONLY, 0
		1308	# or return;
		1309
		1310	$self->_load_header ($path)
1100	or return;	1311	or return;
1101		1312
1102	my $map = cf::map::new	1313	$self->{load_path} = $path;
		1314
		1315	1
		1316	}
		1317
		1318	sub load_header_orig {
		1319	my ($self) = @_;
		1320
		1321	$self->load_header_from ($self->load_path)
		1322	}
		1323
		1324	sub load_header_temp {
		1325	my ($self) = @_;
		1326
		1327	$self->load_header_from ($self->save_path)
		1328	}
		1329
		1330	sub prepare_temp {
		1331	my ($self) = @_;
		1332
		1333	$self->last_access ((delete $self->{last_access})
		1334	|| $cf::RUNTIME); #d#
		1335	# safety
		1336	$self->{instantiate_time} = $cf::RUNTIME
		1337	if $self->{instantiate_time} > $cf::RUNTIME;
		1338	}
		1339
		1340	sub prepare_orig {
		1341	my ($self) = @_;
		1342
		1343	$self->{load_original} = 1;
		1344	$self->{instantiate_time} = $cf::RUNTIME;
		1345	$self->last_access ($cf::RUNTIME);
		1346	$self->instantiate;
		1347	}
		1348
		1349	sub load_header {
		1350	my ($self) = @_;
		1351
		1352	if ($self->load_header_temp) {
		1353	$self->prepare_temp;
		1354	} else {
		1355	$self->load_header_orig
1103	or return;	1356	or return;
		1357	$self->prepare_orig;
		1358	}
1104		1359
1105	$map->load_header ($path)	1360	1
1106	or return;
1107
1108	$map->{load_path} = $path;
1109
1110	$map
1111	}	1361	}
1112		1362
		1363	sub find;
1113	sub find_map {	1364	sub find {
1114	my ($path, $origin) = @_;	1365	my ($path, $origin) = @_;
1115		1366
1116	#warn "find_map<$path,$origin>\n";#d#
1117
1118	$path = new cf::path $path, $origin && $origin->path;	1367	$path = normalise $path, $origin && $origin->path;
1119	my $key = $path->as_string;
1120		1368
		1369	cf::lock_wait "map_find:$path";
		1370
1121	$cf::MAP{$key} || do {	1371	$cf::MAP{$path} || do {
1122	# do it the slow way	1372	my $guard = cf::lock_acquire "map_find:$path";
1123	my $map = try_load_header $path->save_path;	1373	my $map = new_from_path cf::map $path
1124
1125	if ($map) {
1126	# safety
1127	$map->{instantiate_time} = $cf::RUNTIME
1128	if $map->{instantiate_time} > $cf::RUNTIME;
1129	} else {
1130	if (my $rmp = $path->random_map_params) {
1131	$map = generate_random_map $key, $rmp;
1132	} else {
1133	$map = try_load_header $path->load_path;
1134	}
1135
1136	$map or return;	1374	or return;
1137		1375
1138	$map->{load_original} = 1;
1139	$map->{instantiate_time} = $cf::RUNTIME;
1140	$map->instantiate;
1141
1142	# per-player maps become, after loading, normal maps
1143	$map->per_player (0) if $path->{user_rel};
1144	}
1145
1146	$map->path ($key);
1147	$map->{path} = $path;
1148	$map->last_access ($cf::RUNTIME);	1376	$map->{last_save} = $cf::RUNTIME;
1149		1377
1150	if ($map->should_reset) {	1378	$map->load_header
		1379	or return;
		1380
		1381	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1382	# doing this can freeze the server in a sync job, obviously
		1383	#$cf::WAIT_FOR_TICK->wait;
1151	$map->reset;	1384	$map->reset;
1152	$map = find_map $path;	1385	undef $guard;
		1386	return find $path;
1153	}	1387	}
1154		1388
1155	$cf::MAP{$key} = $map	1389	$cf::MAP{$path} = $map
1156	}	1390	}
1157	}	1391	}
		1392
		1393	sub pre_load { }
		1394	sub post_load { }
1158		1395
1159	sub load {	1396	sub load {
1160	my ($self) = @_;	1397	my ($self) = @_;
1161		1398
		1399	local $self->{deny_reset} = 1; # loading can take a long time
		1400
		1401	my $path = $self->{path};
		1402	my $guard = cf::lock_acquire "map_load:$path";
		1403
1162	return if $self->in_memory != cf::MAP_SWAPPED;	1404	return if $self->in_memory != cf::MAP_SWAPPED;
1163		1405
1164	$self->in_memory (cf::MAP_LOADING);	1406	$self->in_memory (cf::MAP_LOADING);
1165		1407
1166	my $path = $self->{path};
1167
1168	$self->alloc;	1408	$self->alloc;
		1409
		1410	$self->pre_load;
		1411
1169	$self->load_objects ($self->{load_path}, 1)	1412	$self->_load_objects ($self->{load_path}, 1)
1170	or return;	1413	or return;
1171		1414
1172	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1415	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1173	if delete $self->{load_original};	1416	if delete $self->{load_original};
1174		1417
1175	if (my $uniq = $path->uniq_path) {	1418	if (my $uniq = $self->uniq_path) {
1176	utf8::encode $uniq;	1419	utf8::encode $uniq;
1177	if (aio_open $uniq, O_RDONLY, 0) {	1420	if (aio_open $uniq, O_RDONLY, 0) {
1178	$self->clear_unique_items;	1421	$self->clear_unique_items;
1179	$self->load_objects ($uniq, 0);	1422	$self->_load_objects ($uniq, 0);
1180	}	1423	}
1181	}	1424	}
		1425
		1426	Coro::cede;
1182		1427
1183	# now do the right thing for maps	1428	# now do the right thing for maps
1184	$self->link_multipart_objects;	1429	$self->link_multipart_objects;
1185		1430
1186	if ($self->{path}->is_style_map) {	1431	unless ($self->{deny_activate}) {
1187	$self->{deny_save} = 1;	1432	$self->decay_objects;
1188	$self->{deny_reset} = 1;
1189	} else {
1190	$self->fix_auto_apply;	1433	$self->fix_auto_apply;
1191	$self->decay_objects;
1192	$self->update_buttons;	1434	$self->update_buttons;
		1435	Coro::cede;
1193	$self->set_darkness_map;	1436	$self->set_darkness_map;
1194	$self->difficulty ($self->estimate_difficulty)	1437	$self->difficulty ($self->estimate_difficulty)
1195	unless $self->difficulty;	1438	unless $self->difficulty;
		1439	Coro::cede;
1196	$self->activate;	1440	$self->activate;
1197	}	1441	}
1198		1442
		1443	$self->post_load;
		1444
1199	$self->in_memory (cf::MAP_IN_MEMORY);	1445	$self->in_memory (cf::MAP_IN_MEMORY);
1200	}	1446	}
1201		1447
1202	sub load_map_sync {	1448	sub customise_for {
		1449	my ($self, $ob) = @_;
		1450
		1451	return find "~" . $ob->name . "/" . $self->{path}
		1452	if $self->per_player;
		1453
		1454	$self
		1455	}
		1456
		1457	# find and load all maps in the 3x3 area around a map
		1458	sub load_diag {
		1459	my ($map) = @_;
		1460
		1461	my @diag; # diagonal neighbours
		1462
		1463	for (0 .. 3) {
		1464	my $neigh = $map->tile_path ($_)
		1465	or next;
		1466	$neigh = find $neigh, $map
		1467	or next;
		1468	$neigh->load;
		1469
		1470	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1471	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1472	}
		1473
		1474	for (@diag) {
		1475	my $neigh = find @$_
		1476	or next;
		1477	$neigh->load;
		1478	}
		1479	}
		1480
		1481	sub find_sync {
1203	my ($path, $origin) = @_;	1482	my ($path, $origin) = @_;
1204		1483
1205	#warn "load_map_sync<$path, $origin>\n";#d#	1484	cf::sync_job { find $path, $origin }
		1485	}
1206		1486
1207	cf::sync_job {	1487	sub do_load_sync {
1208	my $map = cf::map::find_map $path, $origin	1488	my ($map) = @_;
1209	or return;	1489
		1490	cf::sync_job { $map->load };
		1491	}
		1492
		1493	our %MAP_PREFETCH;
		1494	our $MAP_PREFETCHER = undef;
		1495
		1496	sub find_async {
		1497	my ($path, $origin) = @_;
		1498
		1499	$path = normalise $path, $origin && $origin->{path};
		1500
		1501	if (my $map = $cf::MAP{$path}) {
		1502	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1503	}
		1504
		1505	undef $MAP_PREFETCH{$path};
		1506	$MAP_PREFETCHER ||= cf::async {
		1507	while (%MAP_PREFETCH) {
		1508	for my $path (keys %MAP_PREFETCH) {
		1509	my $map = find $path
		1510	or next;
1210	$map->load;	1511	$map->load;
1211	$map	1512
		1513	delete $MAP_PREFETCH{$path};
		1514	}
		1515	}
		1516	undef $MAP_PREFETCHER;
1212	}	1517	};
		1518	$MAP_PREFETCHER->prio (6);
		1519
		1520	()
1213	}	1521	}
1214		1522
1215	sub save {	1523	sub save {
1216	my ($self) = @_;	1524	my ($self) = @_;
1217		1525
1218	my $save = $self->{path}->save_path; utf8::encode $save;	1526	my $lock = cf::lock_acquire "map_data:" . $self->path;
1219	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1220		1527
1221	$self->{last_save} = $cf::RUNTIME;	1528	$self->{last_save} = $cf::RUNTIME;
1222		1529
1223	return unless $self->dirty;	1530	return unless $self->dirty;
1224		1531
		1532	my $save = $self->save_path; utf8::encode $save;
		1533	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1534
1225	$self->{load_path} = $save;	1535	$self->{load_path} = $save;
1226		1536
1227	return if $self->{deny_save};	1537	return if $self->{deny_save};
1228		1538
		1539	local $self->{last_access} = $self->last_access;#d#
		1540
		1541	cf::async {
		1542	$_->contr->save for $self->players;
		1543	};
		1544
1229	if ($uniq) {	1545	if ($uniq) {
1230	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1546	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1231	$self->save_objects ($uniq, cf::IO_UNIQUES);	1547	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1232	} else {	1548	} else {
1233	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1549	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1234	}	1550	}
1235	}	1551	}
1236		1552
1237	sub swap_out {	1553	sub swap_out {
1238	my ($self) = @_;	1554	my ($self) = @_;
		1555
		1556	# save first because save cedes
		1557	$self->save;
		1558
		1559	my $lock = cf::lock_acquire "map_data:" . $self->path;
1239		1560
1240	return if $self->players;	1561	return if $self->players;
1241	return if $self->in_memory != cf::MAP_IN_MEMORY;	1562	return if $self->in_memory != cf::MAP_IN_MEMORY;
1242	return if $self->{deny_save};	1563	return if $self->{deny_save};
1243		1564
1244	$self->save;
1245	$self->clear;	1565	$self->clear;
1246	$self->in_memory (cf::MAP_SWAPPED);	1566	$self->in_memory (cf::MAP_SWAPPED);
1247	}	1567	}
1248		1568
1249	sub reset_at {	1569	sub reset_at {
1250	my ($self) = @_;	1570	my ($self) = @_;
1251		1571
1252	# TODO: safety, remove and allow resettable per-player maps	1572	# TODO: safety, remove and allow resettable per-player maps
1253	return 1e99 if $self->{path}{user_rel};	1573	return 1e99 if $self->isa ("ext::map_per_player");#d#
1254	return 1e99 if $self->{deny_reset};	1574	return 1e99 if $self->{deny_reset};
1255		1575
1256	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1576	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1257	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1577	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1258		1578
…		…
1263	my ($self) = @_;	1583	my ($self) = @_;
1264		1584
1265	$self->reset_at <= $cf::RUNTIME	1585	$self->reset_at <= $cf::RUNTIME
1266	}	1586	}
1267		1587
1268	sub unlink_save {
1269	my ($self) = @_;
1270
1271	utf8::encode (my $save = $self->{path}->save_path);
1272	aioreq_pri 3; IO::AIO::aio_unlink $save;
1273	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1274	}
1275
1276	sub rename {
1277	my ($self, $new_path) = @_;
1278
1279	$self->unlink_save;
1280
1281	delete $cf::MAP{$self->path};
1282	$self->{path} = new cf::path $new_path;
1283	$self->path ($self->{path}->as_string);
1284	$cf::MAP{$self->path} = $self;
1285
1286	$self->save;
1287	}
1288
1289	sub reset {	1588	sub reset {
1290	my ($self) = @_;	1589	my ($self) = @_;
1291		1590
		1591	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1592
1292	return if $self->players;	1593	return if $self->players;
1293	return if $self->{path}{user_rel};#d#	1594	return if $self->isa ("ext::map_per_player");#d#
1294		1595
1295	warn "resetting map ", $self->path;#d#	1596	warn "resetting map ", $self->path;#d#
1296		1597
		1598	$self->in_memory (cf::MAP_SWAPPED);
		1599
		1600	# need to save uniques path
		1601	unless ($self->{deny_save}) {
		1602	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1603
		1604	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1605	if $uniq;
		1606	}
		1607
1297	delete $cf::MAP{$self->path};	1608	delete $cf::MAP{$self->path};
		1609
		1610	$self->clear;
1298		1611
1299	$_->clear_links_to ($self) for values %cf::MAP;	1612	$_->clear_links_to ($self) for values %cf::MAP;
1300		1613
1301	$self->unlink_save;	1614	$self->unlink_save;
1302	$self->destroy;	1615	$self->destroy;
…		…
1305	my $nuke_counter = "aaaa";	1618	my $nuke_counter = "aaaa";
1306		1619
1307	sub nuke {	1620	sub nuke {
1308	my ($self) = @_;	1621	my ($self) = @_;
1309		1622
		1623	delete $cf::MAP{$self->path};
		1624
		1625	$self->unlink_save;
		1626
		1627	bless $self, "cf::map";
		1628	delete $self->{deny_reset};
1310	$self->{deny_save} = 1;	1629	$self->{deny_save} = 1;
1311	$self->reset_timeout (1);	1630	$self->reset_timeout (1);
1312	$self->rename ("{nuke}/" . ($nuke_counter++));	1631	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1632
		1633	$cf::MAP{$self->path} = $self;
		1634
1313	$self->reset; # polite request, might not happen	1635	$self->reset; # polite request, might not happen
1314	}	1636	}
1315		1637
1316	sub customise_for {	1638	=item cf::map::unique_maps
1317	my ($map, $ob) = @_;
1318		1639
1319	if ($map->per_player) {	1640	Returns an arrayref of paths of all shared maps that have
1320	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1641	instantiated unique items. May block.
1321	}
1322		1642
1323	$map	1643	=cut
1324	}
1325		1644
1326	sub emergency_save {	1645	sub unique_maps() {
1327	local $cf::FREEZE = 1;	1646	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1647	or return;
1328		1648
1329	warn "enter emergency map save\n";	1649	my @paths;
1330		1650
1331	cf::sync_job {	1651	for (@$files) {
1332	warn "begin emergency map save\n";	1652	utf8::decode $_;
1333	$_->save for values %cf::MAP;	1653	next if /\.pst$/;
		1654	next unless /^$PATH_SEP/o;
		1655
		1656	push @paths, cf::map::normalise $_;
1334	};	1657	}
1335		1658
1336	warn "end emergency map save\n";	1659	\@paths
1337	}	1660	}
1338		1661
1339	package cf;	1662	package cf;
1340		1663
1341	=back	1664	=back
1342		1665
		1666	=head3 cf::object
		1667
		1668	=cut
		1669
		1670	package cf::object;
		1671
		1672	=over 4
		1673
		1674	=item $ob->inv_recursive
		1675
		1676	Returns the inventory of the object _and_ their inventories, recursively.
		1677
		1678	=cut
		1679
		1680	sub inv_recursive_;
		1681	sub inv_recursive_ {
		1682	map { $_, inv_recursive_ $_->inv } @_
		1683	}
		1684
		1685	sub inv_recursive {
		1686	inv_recursive_ inv $_[0]
		1687	}
		1688
		1689	package cf;
		1690
		1691	=back
1343		1692
1344	=head3 cf::object::player	1693	=head3 cf::object::player
1345		1694
1346	=over 4	1695	=over 4
1347		1696
…		…
1383	(ref $cf::CFG{"may_$access"}	1732	(ref $cf::CFG{"may_$access"}
1384	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1733	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1385	: $cf::CFG{"may_$access"})	1734	: $cf::CFG{"may_$access"})
1386	}	1735	}
1387		1736
		1737	=item $player_object->enter_link
		1738
		1739	Freezes the player and moves him/her to a special map (C<{link}>).
		1740
		1741	The player should be reasonably safe there for short amounts of time. You
		1742	I<MUST> call C<leave_link> as soon as possible, though.
		1743
		1744	Will never block.
		1745
		1746	=item $player_object->leave_link ($map, $x, $y)
		1747
		1748	Moves the player out of the special C<{link}> map onto the specified
		1749	map. If the map is not valid (or omitted), the player will be moved back
		1750	to the location he/she was before the call to C<enter_link>, or, if that
		1751	fails, to the emergency map position.
		1752
		1753	Might block.
		1754
		1755	=cut
		1756
		1757	sub link_map {
		1758	unless ($LINK_MAP) {
		1759	$LINK_MAP = cf::map::find "{link}"
		1760	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1761	$LINK_MAP->load;
		1762	}
		1763
		1764	$LINK_MAP
		1765	}
		1766
1388	sub cf::object::player::enter_link {	1767	sub cf::object::player::enter_link {
1389	my ($self) = @_;	1768	my ($self) = @_;
1390		1769
1391	return if $self->map == $LINK_MAP;	1770	$self->deactivate_recursive;
1392		1771
		1772	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1773
1393	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1774	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1394	if $self->map;	1775	if $self->map;
1395		1776
1396	$self->enter_map ($LINK_MAP, 20, 20);	1777	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1397	$self->deactivate_recursive;
1398	}	1778	}
1399		1779
1400	sub cf::object::player::leave_link {	1780	sub cf::object::player::leave_link {
1401	my ($self, $map, $x, $y) = @_;	1781	my ($self, $map, $x, $y) = @_;
1402		1782
1403	my $link_pos = delete $self->{_link_pos};	1783	my $link_pos = delete $self->{_link_pos};
1404		1784
1405	unless ($map) {	1785	unless ($map) {
1406	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1407
1408	# restore original map position	1786	# restore original map position
1409	($map, $x, $y) = @{ $link_pos || [] };	1787	($map, $x, $y) = @{ $link_pos || [] };
1410	$map = cf::map::find_map $map;	1788	$map = cf::map::find $map;
1411		1789
1412	unless ($map) {	1790	unless ($map) {
1413	($map, $x, $y) = @$EMERGENCY_POSITION;	1791	($map, $x, $y) = @$EMERGENCY_POSITION;
1414	$map = cf::map::find_map $map	1792	$map = cf::map::find $map
1415	or die "FATAL: cannot load emergency map\n";	1793	or die "FATAL: cannot load emergency map\n";
1416	}	1794	}
1417	}	1795	}
1418		1796
1419	($x, $y) = (-1, -1)	1797	($x, $y) = (-1, -1)
…		…
1422	# use -1 or undef as default coordinates, not 0, 0	1800	# use -1 or undef as default coordinates, not 0, 0
1423	($x, $y) = ($map->enter_x, $map->enter_y)	1801	($x, $y) = ($map->enter_x, $map->enter_y)
1424	if $x <=0 && $y <= 0;	1802	if $x <=0 && $y <= 0;
1425		1803
1426	$map->load;	1804	$map->load;
		1805	$map->load_diag;
1427		1806
		1807	return unless $self->contr->active;
1428	$self->activate_recursive;	1808	$self->activate_recursive;
		1809
		1810	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1429	$self->enter_map ($map, $x, $y);	1811	$self->enter_map ($map, $x, $y);
1430	}	1812	}
1431		1813
		1814	cf::player->attach (
		1815	on_logout => sub {
		1816	my ($pl) = @_;
		1817
		1818	# abort map switching before logout
		1819	if ($pl->ob->{_link_pos}) {
		1820	cf::sync_job {
		1821	$pl->ob->leave_link
		1822	};
		1823	}
		1824	},
		1825	on_login => sub {
		1826	my ($pl) = @_;
		1827
		1828	# try to abort aborted map switching on player login :)
		1829	# should happen only on crashes
		1830	if ($pl->ob->{_link_pos}) {
		1831	$pl->ob->enter_link;
		1832	(async {
		1833	$pl->ob->reply (undef,
		1834	"There was an internal problem at your last logout, "
		1835	. "the server will try to bring you to your intended destination in a second.",
		1836	cf::NDI_RED);
		1837	# we need this sleep as the login has a concurrent enter_exit running
		1838	# and this sleep increases chances of the player not ending up in scorn
		1839	Coro::Timer::sleep 1;
		1840	$pl->ob->leave_link;
		1841	})->prio (2);
		1842	}
		1843	},
		1844	);
		1845
1432	=item $player_object->goto_map ($map, $x, $y)	1846	=item $player_object->goto ($path, $x, $y)
1433		1847
1434	=cut	1848	=cut
1435		1849
1436	sub cf::object::player::goto_map {	1850	sub cf::object::player::goto {
1437	my ($self, $path, $x, $y) = @_;	1851	my ($self, $path, $x, $y) = @_;
1438		1852
1439	$self->enter_link;	1853	$self->enter_link;
1440		1854
1441	(Coro::async {	1855	(async {
1442	$path = new cf::path $path;	1856	my $map = eval {
1443
1444	my $map = cf::map::find_map $path->as_string;	1857	my $map = cf::map::find $path;
1445	$map = $map->customise_for ($self) if $map;	1858	$map = $map->customise_for ($self) if $map;
1446
1447	warn "entering ", $map->path, " at ($x, $y)\n"
1448	if $map;	1859	$map
		1860	} or
		1861	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1449		1862
1450	$self->leave_link ($map, $x, $y);	1863	$self->leave_link ($map, $x, $y);
1451	})->prio (1);	1864	})->prio (1);
1452	}	1865	}
1453		1866
…		…
1457		1870
1458	sub parse_random_map_params {	1871	sub parse_random_map_params {
1459	my ($spec) = @_;	1872	my ($spec) = @_;
1460		1873
1461	my $rmp = { # defaults	1874	my $rmp = { # defaults
1462	xsize => 10,	1875	xsize => (cf::rndm 15, 40),
1463	ysize => 10,	1876	ysize => (cf::rndm 15, 40),
		1877	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1878	#layout => string,
1464	};	1879	};
1465		1880
1466	for (split /\n/, $spec) {	1881	for (split /\n/, $spec) {
1467	my ($k, $v) = split /\s+/, $_, 2;	1882	my ($k, $v) = split /\s+/, $_, 2;
1468		1883
…		…
1472	$rmp	1887	$rmp
1473	}	1888	}
1474		1889
1475	sub prepare_random_map {	1890	sub prepare_random_map {
1476	my ($exit) = @_;	1891	my ($exit) = @_;
		1892
		1893	my $guard = cf::lock_acquire "exit_prepare:$exit";
1477		1894
1478	# all this does is basically replace the /! path by	1895	# all this does is basically replace the /! path by
1479	# a new random map path (?random/...) with a seed	1896	# a new random map path (?random/...) with a seed
1480	# that depends on the exit object	1897	# that depends on the exit object
1481		1898
1482	my $rmp = parse_random_map_params $exit->msg;	1899	my $rmp = parse_random_map_params $exit->msg;
1483		1900
1484	if ($exit->map) {	1901	if ($exit->map) {
1485	$rmp->{region} = $exit->map->region_name;	1902	$rmp->{region} = $exit->region->name;
1486	$rmp->{origin_map} = $exit->map->path;	1903	$rmp->{origin_map} = $exit->map->path;
1487	$rmp->{origin_x} = $exit->x;	1904	$rmp->{origin_x} = $exit->x;
1488	$rmp->{origin_y} = $exit->y;	1905	$rmp->{origin_y} = $exit->y;
1489	}	1906	}
1490		1907
1491	$rmp->{random_seed} ||= $exit->random_seed;	1908	$rmp->{random_seed} ||= $exit->random_seed;
1492		1909
1493	my $data = cf::to_json $rmp;	1910	my $data = cf::to_json $rmp;
1494	my $md5 = Digest::MD5::md5_hex $data;	1911	my $md5 = Digest::MD5::md5_hex $data;
		1912	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1495		1913
1496	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1914	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1497	aio_write $fh, 0, (length $data), $data, 0;	1915	aio_write $fh, 0, (length $data), $data, 0;
		1916	undef $fh;
		1917	aio_rename "$meta~", $meta;
1498		1918
1499	$exit->slaying ("?random/$md5");	1919	$exit->slaying ("?random/$md5");
1500	$exit->msg (undef);	1920	$exit->msg (undef);
1501	}	1921	}
1502	}	1922	}
…		…
1504	sub cf::object::player::enter_exit {	1924	sub cf::object::player::enter_exit {
1505	my ($self, $exit) = @_;	1925	my ($self, $exit) = @_;
1506		1926
1507	return unless $self->type == cf::PLAYER;	1927	return unless $self->type == cf::PLAYER;
1508		1928
		1929	if ($exit->slaying eq "/!") {
		1930	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1931	cf::sync_job { prepare_random_map $exit };
		1932	}
		1933
		1934	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1935	my $hp = $exit->stats->hp;
		1936	my $sp = $exit->stats->sp;
		1937
1509	$self->enter_link;	1938	$self->enter_link;
1510		1939
1511	(Coro::async {	1940	(async {
		1941	$self->deactivate_recursive; # just to be sure
1512	unless (eval {	1942	unless (eval {
1513		1943	$self->goto ($slaying, $hp, $sp);
1514	prepare_random_map $exit
1515	if $exit->slaying eq "/!";
1516
1517	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1518	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1519		1944
1520	1;	1945	1;
1521	}) {	1946	}) {
1522	$self->message ("Something went wrong deep within the crossfire server. "	1947	$self->message ("Something went wrong deep within the crossfire server. "
1523	. "I'll try to bring you back to the map you were before. "	1948	. "I'll try to bring you back to the map you were before. "
1524	. "Please report this to the dungeon master",	1949	. "Please report this to the dungeon master!",
1525	cf::NDI_UNIQUE | cf::NDI_RED);	1950	cf::NDI_UNIQUE | cf::NDI_RED);
1526		1951
1527	warn "ERROR in enter_exit: $@";	1952	warn "ERROR in enter_exit: $@";
1528	$self->leave_link;	1953	$self->leave_link;
1529	}	1954	}
…		…
1580	on_reply => sub {	2005	on_reply => sub {
1581	my ($ns, $msg) = @_;	2006	my ($ns, $msg) = @_;
1582		2007
1583	# this weird shuffling is so that direct followup queries	2008	# this weird shuffling is so that direct followup queries
1584	# get handled first	2009	# get handled first
1585	my $queue = delete $ns->{query_queue};	2010	my $queue = delete $ns->{query_queue}
		2011	or return; # be conservative, not sure how that can happen, but we saw a crash here
1586		2012
1587	(shift @$queue)->[1]->($msg);	2013	(shift @$queue)->[1]->($msg);
		2014	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1588		2015
1589	push @{ $ns->{query_queue} }, @$queue;	2016	push @{ $ns->{query_queue} }, @$queue;
1590		2017
1591	if (@{ $ns->{query_queue} } == @$queue) {	2018	if (@{ $ns->{query_queue} } == @$queue) {
1592	if (@$queue) {	2019	if (@$queue) {
…		…
1596	}	2023	}
1597	}	2024	}
1598	},	2025	},
1599	);	2026	);
1600		2027
1601	=item $client->coro (\&cb)	2028	=item $client->async (\&cb)
1602		2029
1603	Create a new coroutine, running the specified callback. The coroutine will	2030	Create a new coroutine, running the specified callback. The coroutine will
1604	be automatically cancelled when the client gets destroyed (e.g. on logout,	2031	be automatically cancelled when the client gets destroyed (e.g. on logout,
1605	or loss of connection).	2032	or loss of connection).
1606		2033
1607	=cut	2034	=cut
1608		2035
1609	sub cf::client::coro {	2036	sub cf::client::async {
1610	my ($self, $cb) = @_;	2037	my ($self, $cb) = @_;
1611		2038
1612	my $coro; $coro = async {	2039	my $coro = &Coro::async ($cb);
1613	eval {
1614	$cb->();
1615	};
1616	warn $@ if $@;
1617	};
1618		2040
1619	$coro->on_destroy (sub {	2041	$coro->on_destroy (sub {
1620	delete $self->{_coro}{$coro+0};	2042	delete $self->{_coro}{$coro+0};
1621	});	2043	});
1622		2044
…		…
1758	The parameter C<$family> should best start with the name of the extension	2180	The parameter C<$family> should best start with the name of the extension
1759	using it, it should be unique.	2181	using it, it should be unique.
1760		2182
1761	=over 4	2183	=over 4
1762		2184
1763	=item $hashref = cf::db_get $family
1764
1765	Return a hashref for use by the extension C<$family>, which can be
1766	modified. After modifications, you have to call C<cf::db_dirty> or
1767	C<cf::db_sync>.
1768
1769	=item $value = cf::db_get $family => $key	2185	=item $value = cf::db_get $family => $key
1770		2186
1771	Returns a single value from the database	2187	Returns a single value from the database.
1772
1773	=item cf::db_put $family => $hashref
1774
1775	Stores the given family hashref into the database. Updates are delayed, if
1776	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1777		2188
1778	=item cf::db_put $family => $key => $value	2189	=item cf::db_put $family => $key => $value
1779		2190
1780	Stores the given C<$value> in the family hash. Updates are delayed, if you	2191	Stores the given C<$value> in the family.
1781	want the data to be synced to disk immediately, use C<cf::db_sync>.
1782
1783	=item cf::db_dirty
1784
1785	Marks the database as dirty, to be updated at a later time.
1786
1787	=item cf::db_sync
1788
1789	Immediately write the database to disk I<if it is dirty>.
1790		2192
1791	=cut	2193	=cut
1792		2194
1793	our $DB;	2195	our $DB;
1794		2196
1795	{	2197	sub db_init {
		2198	unless ($DB) {
		2199	$DB = BDB::db_create $DB_ENV;
		2200
		2201	cf::sync_job {
		2202	eval {
		2203	$DB->set_flags (BDB::CHKSUM);
		2204
		2205	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2206	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2207	cf::cleanup "db_open(db): $!" if $!;
		2208	};
		2209	cf::cleanup "db_open(db): $@" if $@;
		2210	};
		2211
1796	my $path = cf::localdir . "/database.pst";	2212	my $path = cf::localdir . "/database.pst";
		2213	if (stat $path) {
		2214	cf::sync_job {
		2215	my $pst = Storable::retrieve $path;
1797		2216
1798	sub db_load() {	2217	cf::db_put (board => data => $pst->{board});
1799	warn "loading database $path\n";#d# remove later	2218	cf::db_put (guildrules => data => $pst->{guildrules});
1800	$DB = stat $path ? Storable::retrieve $path : { };	2219	cf::db_put (rent => balance => $pst->{rent}{balance});
1801	}	2220	BDB::db_env_txn_checkpoint $DB_ENV;
1802		2221
1803	my $pid;	2222	unlink $path;
1804
1805	sub db_save() {
1806	warn "saving database $path\n";#d# remove later
1807	waitpid $pid, 0 if $pid;
1808	if (0 == ($pid = fork)) {
1809	$DB->{_meta}{version} = 1;
1810	Storable::nstore $DB, "$path~";
1811	rename "$path~", $path;
1812	cf::_exit 0 if defined $pid;
1813	}	2223	};
1814	}
1815
1816	my $dirty;
1817
1818	sub db_sync() {
1819	db_save if $dirty;
1820	undef $dirty;
1821	}
1822
1823	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1824	db_sync;
1825	});
1826
1827	sub db_dirty() {
1828	$dirty = 1;
1829	$idle->start;
1830	}
1831
1832	sub db_get($;$) {
1833	@_ >= 2
1834	? $DB->{$_[0]}{$_[1]}
1835	: ($DB->{$_[0]} ||= { })
1836	}
1837
1838	sub db_put($$;$) {
1839	if (@_ >= 3) {
1840	$DB->{$_[0]}{$_[1]} = $_[2];
1841	} else {
1842	$DB->{$_[0]} = $_[1];
1843	}
1844	db_dirty;
1845	}
1846
1847	cf::global->attach (
1848	prio => 10000,
1849	on_cleanup => sub {
1850	db_sync;
1851	},	2224	}
1852	);	2225	}
		2226	}
		2227
		2228	sub db_get($$) {
		2229	my $key = "$_[0]/$_[1]";
		2230
		2231	cf::sync_job {
		2232	BDB::db_get $DB, undef, $key, my $data;
		2233
		2234	$! ? ()
		2235	: Compress::LZF::sthaw $data
		2236	}
		2237	}
		2238
		2239	sub db_put($$$) {
		2240	BDB::dbreq_pri 4;
		2241	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1853	}	2242	}
1854		2243
1855	#############################################################################	2244	#############################################################################
1856	# the server's main()	2245	# the server's init and main functions
		2246
		2247	sub load_resources {
		2248	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2249	or die "unable to load regions file\n";#d#
		2250	}
1857		2251
1858	sub cfg_load {	2252	sub cfg_load {
1859	open my $fh, "<:utf8", cf::confdir . "/config"	2253	open my $fh, "<:utf8", cf::confdir . "/config"
1860	or return;	2254	or return;
1861		2255
1862	local $/;	2256	local $/;
1863	*CFG = YAML::Syck::Load <$fh>;	2257	*CFG = YAML::Syck::Load <$fh>;
		2258
		2259	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2260
		2261	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2262	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2263
		2264	if (exists $CFG{mlockall}) {
		2265	eval {
		2266	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2267	and die "WARNING: m(un)lockall failed: $!\n";
		2268	};
		2269	warn $@ if $@;
		2270	}
		2271	}
		2272
		2273	sub init {
		2274	load_resources;
1864	}	2275	}
1865		2276
1866	sub main {	2277	sub main {
1867	# we must not ever block the main coroutine	2278	# we must not ever block the main coroutine
1868	local $Coro::idle = sub {	2279	local $Coro::idle = sub {
1869	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2280	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1870	(Coro::unblock_sub {	2281	(async {
1871	Event::one_event;	2282	Event::one_event;
1872	})->();	2283	})->prio (Coro::PRIO_MAX);
1873	};	2284	};
1874		2285
1875	cfg_load;	2286	cfg_load;
1876	db_load;	2287	db_init;
1877	load_extensions;	2288	load_extensions;
		2289
		2290	$TICK_WATCHER->start;
1878	Event::loop;	2291	Event::loop;
1879	}	2292	}
1880		2293
1881	#############################################################################	2294	#############################################################################
1882	# initialisation	2295	# initialisation and cleanup
		2296
		2297	# install some emergency cleanup handlers
		2298	BEGIN {
		2299	for my $signal (qw(INT HUP TERM)) {
		2300	Event->signal (
		2301	reentrant => 0,
		2302	data => WF_AUTOCANCEL,
		2303	signal => $signal,
		2304	prio => 0,
		2305	cb => sub {
		2306	cf::cleanup "SIG$signal";
		2307	},
		2308	);
		2309	}
		2310	}
		2311
		2312	sub emergency_save() {
		2313	my $freeze_guard = cf::freeze_mainloop;
		2314
		2315	warn "enter emergency perl save\n";
		2316
		2317	cf::sync_job {
		2318	# use a peculiar iteration method to avoid tripping on perl
		2319	# refcount bugs in for. also avoids problems with players
		2320	# and maps saved/destroyed asynchronously.
		2321	warn "begin emergency player save\n";
		2322	for my $login (keys %cf::PLAYER) {
		2323	my $pl = $cf::PLAYER{$login} or next;
		2324	$pl->valid or next;
		2325	$pl->save;
		2326	}
		2327	warn "end emergency player save\n";
		2328
		2329	warn "begin emergency map save\n";
		2330	for my $path (keys %cf::MAP) {
		2331	my $map = $cf::MAP{$path} or next;
		2332	$map->valid or next;
		2333	$map->save;
		2334	}
		2335	warn "end emergency map save\n";
		2336
		2337	warn "begin emergency database checkpoint\n";
		2338	BDB::db_env_txn_checkpoint $DB_ENV;
		2339	warn "end emergency database checkpoint\n";
		2340	};
		2341
		2342	warn "leave emergency perl save\n";
		2343	}
		2344
		2345	sub post_cleanup {
		2346	my ($make_core) = @_;
		2347
		2348	warn Carp::longmess "post_cleanup backtrace"
		2349	if $make_core;
		2350	}
1883		2351
1884	sub reload() {	2352	sub reload() {
1885	# can/must only be called in main	2353	# can/must only be called in main
1886	if ($Coro::current != $Coro::main) {	2354	if ($Coro::current != $Coro::main) {
1887	warn "can only reload from main coroutine\n";	2355	warn "can only reload from main coroutine";
1888	return;	2356	return;
1889	}	2357	}
1890		2358
1891	warn "reloading...";	2359	warn "reloading...";
1892		2360
1893	local $FREEZE = 1;	2361	warn "entering sync_job";
		2362
		2363	cf::sync_job {
		2364	cf::write_runtime; # external watchdog should not bark
1894	cf::emergency_save;	2365	cf::emergency_save;
		2366	cf::write_runtime; # external watchdog should not bark
1895		2367
1896	eval {	2368	warn "syncing database to disk";
		2369	BDB::db_env_txn_checkpoint $DB_ENV;
		2370
1897	# if anything goes wrong in here, we should simply crash as we already saved	2371	# if anything goes wrong in here, we should simply crash as we already saved
1898		2372
1899	# cancel all watchers	2373	warn "cancelling all WF_AUTOCANCEL watchers";
1900	for (Event::all_watchers) {	2374	for (Event::all_watchers) {
1901	$_->cancel if $_->data & WF_AUTOCANCEL;	2375	$_->cancel if $_->data & WF_AUTOCANCEL;
1902	}	2376	}
1903		2377
		2378	warn "flushing outstanding aio requests";
		2379	for (;;) {
		2380	BDB::flush;
		2381	IO::AIO::flush;
		2382	Coro::cede;
		2383	last unless IO::AIO::nreqs || BDB::nreqs;
		2384	warn "iterate...";
		2385	}
		2386
1904	# cancel all extension coros	2387	warn "cancelling all extension coros";
1905	$_->cancel for values %EXT_CORO;	2388	$_->cancel for values %EXT_CORO;
1906	%EXT_CORO = ();	2389	%EXT_CORO = ();
1907		2390
1908	# unload all extensions	2391	warn "removing commands";
1909	for (@exts) {	2392	%COMMAND = ();
		2393
		2394	warn "removing ext commands";
		2395	%EXTCMD = ();
		2396
		2397	warn "unloading/nuking all extensions";
		2398	for my $pkg (@EXTS) {
1910	warn "unloading <$_>";	2399	warn "... unloading $pkg";
1911	unload_extension $_;	2400
		2401	if (my $cb = $pkg->can ("unload")) {
		2402	eval {
		2403	$cb->($pkg);
		2404	1
		2405	} or warn "$pkg unloaded, but with errors: $@";
1912	}	2406	}
1913		2407
		2408	warn "... nuking $pkg";
		2409	Symbol::delete_package $pkg;
		2410	}
		2411
1914	# unload all modules loaded from $LIBDIR	2412	warn "unloading all perl modules loaded from $LIBDIR";
1915	while (my ($k, $v) = each %INC) {	2413	while (my ($k, $v) = each %INC) {
1916	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2414	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1917		2415
1918	warn "removing <$k>";	2416	warn "... unloading $k";
1919	delete $INC{$k};	2417	delete $INC{$k};
1920		2418
1921	$k =~ s/\.pm$//;	2419	$k =~ s/\.pm$//;
1922	$k =~ s/\//::/g;	2420	$k =~ s/\//::/g;
1923		2421
…		…
1926	}	2424	}
1927		2425
1928	Symbol::delete_package $k;	2426	Symbol::delete_package $k;
1929	}	2427	}
1930		2428
1931	# sync database to disk
1932	cf::db_sync;
1933	IO::AIO::flush;
1934
1935	# get rid of safe::, as good as possible	2429	warn "getting rid of safe::, as good as possible";
1936	Symbol::delete_package "safe::$_"	2430	Symbol::delete_package "safe::$_"
1937	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2431	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1938		2432
1939	# remove register_script_function callbacks
1940	# TODO
1941
1942	# unload cf.pm "a bit"	2433	warn "unloading cf.pm \"a bit\"";
1943	delete $INC{"cf.pm"};	2434	delete $INC{"cf.pm"};
1944		2435
1945	# don't, removes xs symbols, too,	2436	# don't, removes xs symbols, too,
1946	# and global variables created in xs	2437	# and global variables created in xs
1947	#Symbol::delete_package __PACKAGE__;	2438	#Symbol::delete_package __PACKAGE__;
1948		2439
1949	# reload cf.pm	2440	warn "unload completed, starting to reload now";
		2441
1950	warn "reloading cf.pm";	2442	warn "reloading cf.pm";
1951	require cf;	2443	require cf;
1952	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2444	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1953		2445
1954	# load config and database again	2446	warn "loading config and database again";
1955	cf::cfg_load;	2447	cf::cfg_load;
1956	cf::db_load;
1957		2448
1958	# load extensions
1959	warn "load extensions";	2449	warn "loading extensions";
1960	cf::load_extensions;	2450	cf::load_extensions;
1961		2451
1962	# reattach attachments to objects	2452	warn "reattaching attachments to objects/players";
1963	warn "reattach";
1964	_global_reattach;	2453	_global_reattach;
1965	};	2454	warn "reattaching attachments to maps";
		2455	reattach $_ for values %MAP;
1966		2456
1967	if ($@) {	2457	warn "loading reloadable resources";
		2458	load_resources;
		2459
		2460	warn "leaving sync_job";
		2461
		2462	1
		2463	} or do {
1968	warn $@;	2464	warn $@;
1969	warn "error while reloading, exiting.";	2465	warn "error while reloading, exiting.";
1970	exit 1;	2466	exit 1;
1971	}	2467	};
1972		2468
1973	warn "reloaded successfully";	2469	warn "reloaded";
1974	};	2470	};
1975		2471
1976	#############################################################################	2472	our $RELOAD_WATCHER; # used only during reload
1977
1978	unless ($LINK_MAP) {
1979	$LINK_MAP = cf::map::new;
1980
1981	$LINK_MAP->width (41);
1982	$LINK_MAP->height (41);
1983	$LINK_MAP->alloc;
1984	$LINK_MAP->path ("{link}");
1985	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1986	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1987
1988	# dirty hack because... archetypes are not yet loaded
1989	Event->timer (
1990	after => 2,
1991	cb => sub {
1992	$_[0]->w->cancel;
1993
1994	# provide some exits "home"
1995	my $exit = cf::object::new "exit";
1996
1997	$exit->slaying ($EMERGENCY_POSITION->[0]);
1998	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1999	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2000
2001	$LINK_MAP->insert ($exit->clone, 19, 19);
2002	$LINK_MAP->insert ($exit->clone, 19, 20);
2003	$LINK_MAP->insert ($exit->clone, 19, 21);
2004	$LINK_MAP->insert ($exit->clone, 20, 19);
2005	$LINK_MAP->insert ($exit->clone, 20, 21);
2006	$LINK_MAP->insert ($exit->clone, 21, 19);
2007	$LINK_MAP->insert ($exit->clone, 21, 20);
2008	$LINK_MAP->insert ($exit->clone, 21, 21);
2009
2010	$exit->destroy;
2011	});
2012
2013	$LINK_MAP->{deny_save} = 1;
2014	$LINK_MAP->{deny_reset} = 1;
2015
2016	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2017	}
2018
2019	register "<global>", __PACKAGE__;
2020		2473
2021	register_command "reload" => sub {	2474	register_command "reload" => sub {
2022	my ($who, $arg) = @_;	2475	my ($who, $arg) = @_;
2023		2476
2024	if ($who->flag (FLAG_WIZ)) {	2477	if ($who->flag (FLAG_WIZ)) {
2025	$who->message ("start of reload.");	2478	$who->message ("reloading server.");
		2479
		2480	# doing reload synchronously and two reloads happen back-to-back,
		2481	# coro crashes during coro_state_free->destroy here.
		2482
		2483	$RELOAD_WATCHER ||= Event->timer (
		2484	reentrant => 0,
		2485	after => 0,
		2486	data => WF_AUTOCANCEL,
		2487	cb => sub {
2026	reload;	2488	reload;
2027	$who->message ("end of reload.");	2489	undef $RELOAD_WATCHER;
		2490	},
		2491	);
2028	}	2492	}
2029	};	2493	};
2030		2494
2031	unshift @INC, $LIBDIR;	2495	unshift @INC, $LIBDIR;
		2496
		2497	my $bug_warning = 0;
2032		2498
2033	$TICK_WATCHER = Event->timer (	2499	$TICK_WATCHER = Event->timer (
2034	reentrant => 0,	2500	reentrant => 0,
		2501	parked => 1,
2035	prio => 0,	2502	prio => 0,
2036	at => $NEXT_TICK || $TICK,	2503	at => $NEXT_TICK || $TICK,
2037	data => WF_AUTOCANCEL,	2504	data => WF_AUTOCANCEL,
2038	cb => sub {	2505	cb => sub {
2039	unless ($FREEZE) {	2506	if ($Coro::current != $Coro::main) {
		2507	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2508	unless ++$bug_warning > 10;
		2509	return;
		2510	}
		2511
		2512	$NOW = Event::time;
		2513
2040	cf::server_tick; # one server iteration	2514	cf::server_tick; # one server iteration
2041	$RUNTIME += $TICK;	2515	$RUNTIME += $TICK;
2042	}
2043
2044	$NEXT_TICK += $TICK;	2516	$NEXT_TICK += $TICK;
		2517
		2518	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2519	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2520	Coro::async_pool {
		2521	write_runtime
		2522	or warn "ERROR: unable to write runtime file: $!";
		2523	};
		2524	}
		2525
		2526
		2527	$WAIT_FOR_TICK->broadcast;
		2528	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2529
		2530	# my $AFTER = Event::time;
		2531	# warn $AFTER - $NOW;#d#
2045		2532
2046	# if we are delayed by four ticks or more, skip them all	2533	# if we are delayed by four ticks or more, skip them all
2047	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2534	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2048		2535
2049	$TICK_WATCHER->at ($NEXT_TICK);	2536	$TICK_WATCHER->at ($NEXT_TICK);
2050	$TICK_WATCHER->start;	2537	$TICK_WATCHER->start;
2051	},	2538	},
2052	);	2539	);
2053		2540
		2541	{
2054	IO::AIO::max_poll_time $TICK * 0.2;	2542	BDB::max_poll_time $TICK * 0.1;
2055		2543	$BDB_POLL_WATCHER = Event->io (
2056	Event->io (	2544	reentrant => 0,
2057	fd => IO::AIO::poll_fileno,	2545	fd => BDB::poll_fileno,
2058	poll => 'r',	2546	poll => 'r',
2059	prio => 5,	2547	prio => 0,
2060	data => WF_AUTOCANCEL,
2061	cb => \&IO::AIO::poll_cb,
2062	);
2063
2064	Event->timer (
2065	data => WF_AUTOCANCEL,	2548	data => WF_AUTOCANCEL,
2066	after => 0,	2549	cb => \&BDB::poll_cb,
2067	interval => 10,	2550	);
2068	cb => sub {	2551	BDB::min_parallel 8;
2069	(Coro::unblock_sub {	2552
2070	write_runtime	2553	BDB::set_sync_prepare {
2071	or warn "ERROR: unable to write runtime file: $!";	2554	my $status;
		2555	my $current = $Coro::current;
		2556	(
		2557	sub {
		2558	$status = $!;
		2559	$current->ready; undef $current;
		2560	},
		2561	sub {
		2562	Coro::schedule while defined $current;
		2563	$! = $status;
		2564	},
		2565	)
		2566	};
		2567
		2568	unless ($DB_ENV) {
		2569	$DB_ENV = BDB::db_env_create;
		2570
		2571	cf::sync_job {
		2572	eval {
		2573	BDB::db_env_open
		2574	$DB_ENV,
		2575	$BDB_ENV_DIR,
		2576	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2577	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2578	0666;
		2579
		2580	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2581
		2582	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2583	$DB_ENV->set_lk_detect;
		2584	};
		2585
		2586	cf::cleanup "db_env_open(db): $@" if $@;
2072	})->();	2587	};
2073	},	2588	}
2074	);	2589	}
		2590
		2591	{
		2592	IO::AIO::min_parallel 8;
		2593
		2594	undef $Coro::AIO::WATCHER;
		2595	IO::AIO::max_poll_time $TICK * 0.1;
		2596	$AIO_POLL_WATCHER = Event->io (
		2597	reentrant => 0,
		2598	data => WF_AUTOCANCEL,
		2599	fd => IO::AIO::poll_fileno,
		2600	poll => 'r',
		2601	prio => 6,
		2602	cb => \&IO::AIO::poll_cb,
		2603	);
		2604	}
		2605
		2606	END { cf::emergency_save }
2075		2607
2076	1	2608	1
2077		2609

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