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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.134 by root, Thu Jan 4 17:28:49 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 $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
55	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
56		78
57	binmode STDOUT;	79	binmode STDOUT;
58	binmode STDERR;	80	binmode STDERR;
59		81
60	# read virtual server time, if available	82	# read virtual server time, if available
…		…
67	mkdir cf::localdir;	89	mkdir cf::localdir;
68	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
72		95
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
76		99
77	#############################################################################	100	#############################################################################
78		101
79	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
80		103
…		…
104		127
105	=item %cf::CFG	128	=item %cf::CFG
106		129
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		139
110	=back	140	=back
111		141
112	=cut	142	=cut
113		143
…		…
117	utf8::encode $msg;	147	utf8::encode $msg;
118		148
119	$msg .= "\n"	149	$msg .= "\n"
120	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
121		151
122	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
123	};	153	};
124	}	154	}
125		155
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		175
146	$Event::DIED = sub {	176	$Event::DIED = sub {
147	warn "error in event callback: @_";	177	warn "error in event callback: @_";
148	};	178	};
149		179
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
155		181
156	=over 4	182	=over 4
157		183
		184	=item dumpval $ref
		185
158	=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	}
159		206
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		208
162	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
163		210
…		…
179	sub to_json($) {	226	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
182	}	229	}
183		230
184	=item my $guard = cf::guard { BLOCK }
185
186	Run the given callback when the guard object gets destroyed (useful for
187	coroutine cancellations).
188
189	You can call C<< ->cancel >> on the guard object to stop the block from
190	being executed.
191
192	=cut
193
194	sub guard(&) {
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197
198	sub cf::guard::cancel {
199	${$_[0]} = sub { };
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}
205
206	=item cf::lock_wait $string	231	=item cf::lock_wait $string
207		232
208	Wait until the given lock is available. See cf::lock_acquire.	233	Wait until the given lock is available. See cf::lock_acquire.
209		234
210	=item my $lock = cf::lock_acquire $string	235	=item my $lock = cf::lock_acquire $string
211		236
212	Wait until the given lock is available and then acquires it and returns	237	Wait until the given lock is available and then acquires it and returns
213	a guard object. If the guard object gets destroyed (goes out of scope,	238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
214	for example when the coroutine gets canceled), the lock is automatically	239	for example when the coroutine gets canceled), the lock is automatically
215	returned.	240	returned.
216		241
217	Lock names should begin with a unique identifier (for example, cf::map::find	242	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	243	uses map_find and cf::map::load uses map_load).
…		…
237	# wait, to be sure we are not locked	262	# wait, to be sure we are not locked
238	lock_wait $key;	263	lock_wait $key;
239		264
240	$LOCK{$key} = [];	265	$LOCK{$key} = [];
241		266
242	cf::guard {	267	Coro::guard {
243	# wake up all waiters, to be on the safe side	268	# wake up all waiters, to be on the safe side
244	$_->ready for @{ delete $LOCK{$key} };	269	$_->ready for @{ delete $LOCK{$key} };
245	}	270	}
246	}	271	}
247		272
248	=item cf::async { BLOCK }
249
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251	error instead of exiting the server in case of a problem.
252
253	=cut
254
255	sub async(&) {
256	my ($cb) = @_;
257
258	Coro::async {
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}
263
264	sub freeze_mainloop {	273	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	274	return unless $TICK_WATCHER->is_active;
266		275
267	my $guard = guard { $TICK_WATCHER->start };	276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	};
268	$TICK_WATCHER->stop;	279	$TICK_WATCHER->stop;
269	$guard	280	$guard
270	}	281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
271		292
272	=item cf::sync_job { BLOCK }	293	=item cf::sync_job { BLOCK }
273		294
274	The design of crossfire+ requires that the main coro ($Coro::main) is	295	The design of crossfire+ requires that the main coro ($Coro::main) is
275	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
…		…
294	my $freeze_guard = freeze_mainloop;	315	my $freeze_guard = freeze_mainloop;
295		316
296	my $busy = 1;	317	my $busy = 1;
297	my @res;	318	my @res;
298		319
299	(Coro::async {	320	(async {
300	@res = eval { $job->() };	321	@res = eval { $job->() };
301	warn $@ if $@;	322	warn $@ if $@;
302	undef $busy;	323	undef $busy;
303	})->prio (Coro::PRIO_MAX);	324	})->prio (Coro::PRIO_MAX);
304		325
305	while ($busy) {	326	while ($busy) {
306	Coro::cede_notself;	327	Coro::cede or Event::one_event;
307	Event::one_event unless Coro::nready;
308	}	328	}
309		329
310	wantarray ? @res : $res[0]	330	wantarray ? @res : $res[0]
311	} else {	331	} else {
312	# we are in another coroutine, how wonderful, everything just works	332	# we are in another coroutine, how wonderful, everything just works
313		333
314	$job->()	334	$job->()
315	}	335	}
316	}	336	}
317		337
318	=item $coro = cf::coro { BLOCK }	338	=item $coro = cf::async_ext { BLOCK }
319		339
320	Creates and returns a new coro. This coro is automcatially being canceled	340	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	341	extension calling this is being unloaded.
322		342
323	=cut	343	=cut
324		344
325	sub coro(&) {	345	sub async_ext(&) {
326	my $cb = shift;	346	my $cb = shift;
327		347
328	my $coro = &cf::async ($cb);	348	my $coro = &Coro::async ($cb);
329		349
330	$coro->on_destroy (sub {	350	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	351	delete $EXT_CORO{$coro+0};
332	});	352	});
333	$EXT_CORO{$coro+0} = $coro;	353	$EXT_CORO{$coro+0} = $coro;
…		…
339	my $runtime = cf::localdir . "/runtime";	359	my $runtime = cf::localdir . "/runtime";
340		360
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
342	or return;	362	or return;
343		363
		364	my $value = $cf::RUNTIME + 90 + 10;
344	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
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0	368	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;	369	and return;
347		370
		371	# always fsync - this file is important
348	aio_fsync $fh	372	aio_fsync $fh
349	and return;	373	and return;
350		374
351	close $fh	375	close $fh
352	or return;	376	or return;
…		…
358	}	382	}
359		383
360	=back	384	=back
361		385
362	=cut	386	=cut
363
364	#############################################################################
365
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483		387
484	#############################################################################	388	#############################################################################
485		389
486	=head2 ATTACHABLE OBJECTS	390	=head2 ATTACHABLE OBJECTS
487		391
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	517	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	518	our @CB_MAP = ();
615		519
616	my %attachment;	520	my %attachment;
617		521
		522	sub cf::attachable::thawer_merge {
		523	# simply override everything except _meta
		524	local $_[0]{_meta};
		525	%{$_[0]} = %{$_[1]};
		526	}
		527
618	sub _attach_cb($$$$) {	528	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	529	my ($registry, $event, $prio, $cb) = @_;
620		530
621	use sort 'stable';	531	use sort 'stable';
622		532
…		…
793	# object support	703	# object support
794		704
795	sub reattach {	705	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	706	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	707	my ($obj) = @_;
		708
		709	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		710
799	my $registry = $obj->registry;	711	my $registry = $obj->registry;
800		712
801	@$registry = ();	713	@$registry = ();
802		714
…		…
849	$filename, length $$rdata, scalar @$objs;	761	$filename, length $$rdata, scalar @$objs;
850		762
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	763	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	764	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	765	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	766	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	767	close $fh;
856		768
857	if (@$objs) {	769	if (@$objs) {
858	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) {
859	chmod SAVE_MODE, $fh;	771	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	772	my $data = Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	773	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	774	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	775	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	776	aio_rename "$filename.pst~", "$filename.pst";
865	}	777	}
866	} else {	778	} else {
867	aio_unlink "$filename.pst";	779	aio_unlink "$filename.pst";
…		…
934	=cut	846	=cut
935		847
936	sub register_extcmd {	848	sub register_extcmd {
937	my ($name, $cb) = @_;	849	my ($name, $cb) = @_;
938		850
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	851	$EXTCMD{$name} = $cb;
943	}	852	}
944		853
945	cf::player->attach (	854	cf::player->attach (
946	on_command => sub {	855	on_command => sub {
947	my ($pl, $name, $params) = @_;	856	my ($pl, $name, $params) = @_;
…		…
960		869
961	my $msg = eval { from_json $buf };	870	my $msg = eval { from_json $buf };
962		871
963	if (ref $msg) {	872	if (ref $msg) {
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	874	if (my %reply = $cb->($pl, $msg)) {
966	$pl->ext_reply ($msg->{msgid}, %reply);	875	$pl->ext_reply ($msg->{msgid}, %reply);
967	}	876	}
968	}	877	}
969	} else {	878	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
972		881
973	cf::override;	882	cf::override;
974	},	883	},
975	);	884	);
976		885
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	886	sub load_extension {
984	my ($path) = @_;	887	my ($path) = @_;
985		888
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
987	my $base = $1;	890	my $base = $1;
988	my $pkg = $1;	891	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;	892	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";	893	$pkg = "ext::$pkg";
991		894
992	warn "loading '$path' into '$pkg'\n";	895	warn "... loading '$path' into '$pkg'\n";
993		896
994	open my $fh, "<:utf8", $path	897	open my $fh, "<:utf8", $path
995	or die "$path: $!";	898	or die "$path: $!";
996		899
997	my $source =	900	my $source =
998	"package $pkg; use strict; use utf8;\n"	901	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"	902	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })	903	. (do { local $/; <$fh> })
1001	. "\n};\n1";	904	. "\n};\n1";
1002		905
1003	eval $source	906	unless (eval $source) {
1004	or die $@ ? "$path: $@\n"	907	my $msg = $@ ? "$path: $@\n"
1005	: "extension disabled.\n";	908	: "extension disabled.\n";
1006		909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1007	push @exts, $pkg;	910	warn $@;
1008	$ext_pkg{$base} = $pkg;	911	warn "mandatory extension failed to load, exiting.\n";
1009		912	exit 1;
1010	# no strict 'refs';	913	}
1011	# @{"$pkg\::ISA"} = ext::;	914	die $@;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }	915	}
1026		916
1027	# remove commands	917	push @EXTS, $pkg;
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}
1036	}
1037
1038	# remove extcmds
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}	918	}
1052		919
1053	sub load_extensions {	920	sub load_extensions {
1054	for my $ext (<$LIBDIR/*.ext>) {	921	for my $ext (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;	922	next unless -r $ext;
…		…
1059	} or warn "$ext not loaded: $@";	926	} or warn "$ext not loaded: $@";
1060	}	927	}
1061	}	928	}
1062		929
1063	#############################################################################	930	#############################################################################
1064	# load/save/clean perl data associated with a map
1065
1066	*cf::mapsupport::on_clean = sub {
1067	my ($map) = @_;
1068
1069	my $path = $map->tmpname;
1070	defined $path or return;
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}
1083
1084	# TODO: compatibility cruft, remove when no longer needed
1085	cf::player->attach (
1086	on_load => sub {
1087	my ($pl, $path) = @_;
1088
1089	for my $o (all_objects $pl->ob) {
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091	$o->set_ob_key_value ("_perl_data");
1092
1093	%$o = %{ Storable::thaw pack "H*", $value };
1094	}
1095	}
1096	},
1097	);
1098
1099	#############################################################################
1100		931
1101	=head2 CORE EXTENSIONS	932	=head2 CORE EXTENSIONS
1102		933
1103	Functions and methods that extend core crossfire objects.	934	Functions and methods that extend core crossfire objects.
1104		935
		936	=cut
		937
		938	package cf::player;
		939
		940	use Coro::AIO;
		941
1105	=head3 cf::player	942	=head3 cf::player
1106		943
1107	=over 4	944	=over 4
1108		945
1109	=item cf::player::exists $login	946	=item cf::player::find $login
1110		947
1111	Returns true when the given account exists.	948	Returns the given player object, loading it if necessary (might block).
1112		949
1113	=cut	950	=cut
1114		951
1115	sub cf::player::exists($) {	952	sub playerdir($) {
1116	cf::player::find $_[0]	953	cf::localdir
1117	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
1118	}	1100	}
1119		1101
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)	1102	=item $player->ext_reply ($msgid, $msgtype, %msg)
1121		1103
1122	Sends an ext reply to the player.	1104	Sends an ext reply to the player.
1123		1105
1124	=cut	1106	=cut
1125		1107
1126	sub cf::player::ext_reply($$$%) {	1108	sub ext_reply($$$%) {
1127	my ($self, $id, %msg) = @_;	1109	my ($self, $id, %msg) = @_;
1128		1110
1129	$msg{msgid} = $id;	1111	$msg{msgid} = $id;
1130		1112
1131	$self->send ("ext " . to_json \%msg);	1113	$self->send ("ext " . cf::to_json \%msg);
1132	}	1114	}
		1115
		1116	package cf;
1133		1117
1134	=back	1118	=back
1135		1119
1136		1120
1137	=head3 cf::map	1121	=head3 cf::map
…		…
1143	package cf::map;	1127	package cf::map;
1144		1128
1145	use Fcntl;	1129	use Fcntl;
1146	use Coro::AIO;	1130	use Coro::AIO;
1147		1131
		1132	use overload
		1133	'""' => \&as_string,
		1134	fallback => 1;
		1135
1148	our $MAX_RESET = 3600;	1136	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1137	our $DEFAULT_RESET = 3000;
1150		1138
1151	sub generate_random_map {	1139	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1140	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1141	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1142	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1143	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1144	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1145	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1146	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1147	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1148	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1149	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1150	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$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},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1152	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(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
1168	}	1284	}
1169		1285
1170	# and all this just because we cannot iterate over	1286	# and all this just because we cannot iterate over
1171	# all maps in C++...	1287	# all maps in C++...
1172	sub change_all_map_light {	1288	sub change_all_map_light {
…		…
1174		1290
1175	$_->change_map_light ($change)	1291	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1292	for grep $_->outdoor, values %cf::MAP;
1177	}	1293	}
1178		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
1179	sub try_load_header($) {	1303	sub load_header_from($) {
1180	my ($path) = @_;	1304	my ($self, $path) = @_;
1181		1305
1182	utf8::encode $path;	1306	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1307	#aio_open $path, O_RDONLY, 0
		1308	# or return;
		1309
		1310	$self->_load_header ($path)
1184	or return;	1311	or return;
1185		1312
1186	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
1187	or return;	1356	or return;
		1357	$self->prepare_orig;
		1358	}
1188		1359
1189	$map->load_header ($path)	1360	1
1190	or return;
1191
1192	$map->{load_path} = $path;
1193
1194	$map
1195	}	1361	}
1196		1362
1197	sub find;	1363	sub find;
1198	sub find {	1364	sub find {
1199	my ($path, $origin) = @_;	1365	my ($path, $origin) = @_;
1200		1366
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1367	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1368
1206	cf::lock_wait "map_find:$key";	1369	cf::lock_wait "map_find:$path";
1207		1370
1208	$cf::MAP{$key} || do {	1371	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1372	my $guard = cf::lock_acquire "map_find:$path";
1210		1373	my $map = new_from_path cf::map $path
1211	# do it the slow way
1212	my $map = try_load_header $path->save_path;
1213
1214	Coro::cede;
1215
1216	if ($map) {
1217	$map->last_access ((delete $map->{last_access})
1218	|| $cf::RUNTIME); #d#
1219	# safety
1220	$map->{instantiate_time} = $cf::RUNTIME
1221	if $map->{instantiate_time} > $cf::RUNTIME;
1222	} else {
1223	if (my $rmp = $path->random_map_params) {
1224	$map = generate_random_map $key, $rmp;
1225	} else {
1226	$map = try_load_header $path->load_path;
1227	}
1228
1229	$map or return;	1374	or return;
1230		1375
1231	$map->{load_original} = 1;
1232	$map->{instantiate_time} = $cf::RUNTIME;
1233	$map->last_access ($cf::RUNTIME);
1234	$map->instantiate;
1235
1236	# per-player maps become, after loading, normal maps
1237	$map->per_player (0) if $path->{user_rel};
1238	}
1239
1240	$map->path ($key);
1241	$map->{path} = $path;
1242	$map->{last_save} = $cf::RUNTIME;	1376	$map->{last_save} = $cf::RUNTIME;
1243		1377
1244	Coro::cede;	1378	$map->load_header
		1379	or return;
1245		1380
1246	if ($map->should_reset) {	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;
1247	$map->reset;	1384	$map->reset;
1248	undef $guard;	1385	undef $guard;
1249	$map = find $path	1386	return find $path;
1250	or return;
1251	}	1387	}
1252		1388
1253	$cf::MAP{$key} = $map	1389	$cf::MAP{$path} = $map
1254	}	1390	}
1255	}	1391	}
		1392
		1393	sub pre_load { }
		1394	sub post_load { }
1256		1395
1257	sub load {	1396	sub load {
1258	my ($self) = @_;	1397	my ($self) = @_;
1259		1398
		1399	local $self->{deny_reset} = 1; # loading can take a long time
		1400
1260	my $path = $self->{path};	1401	my $path = $self->{path};
1261	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1402	my $guard = cf::lock_acquire "map_load:$path";
1262		1403
1263	return if $self->in_memory != cf::MAP_SWAPPED;	1404	return if $self->in_memory != cf::MAP_SWAPPED;
1264		1405
1265	$self->in_memory (cf::MAP_LOADING);	1406	$self->in_memory (cf::MAP_LOADING);
1266		1407
1267	$self->alloc;	1408	$self->alloc;
		1409
		1410	$self->pre_load;
		1411
1268	$self->load_objects ($self->{load_path}, 1)	1412	$self->_load_objects ($self->{load_path}, 1)
1269	or return;	1413	or return;
1270		1414
1271	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1415	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1272	if delete $self->{load_original};	1416	if delete $self->{load_original};
1273		1417
1274	if (my $uniq = $path->uniq_path) {	1418	if (my $uniq = $self->uniq_path) {
1275	utf8::encode $uniq;	1419	utf8::encode $uniq;
1276	if (aio_open $uniq, O_RDONLY, 0) {	1420	if (aio_open $uniq, O_RDONLY, 0) {
1277	$self->clear_unique_items;	1421	$self->clear_unique_items;
1278	$self->load_objects ($uniq, 0);	1422	$self->_load_objects ($uniq, 0);
1279	}	1423	}
1280	}	1424	}
1281		1425
1282	Coro::cede;	1426	Coro::cede;
1283		1427
1284	# now do the right thing for maps	1428	# now do the right thing for maps
1285	$self->link_multipart_objects;	1429	$self->link_multipart_objects;
1286		1430
1287	if ($self->{path}->is_style_map) {	1431	unless ($self->{deny_activate}) {
1288	$self->{deny_save} = 1;	1432	$self->decay_objects;
1289	$self->{deny_reset} = 1;
1290	} else {
1291	$self->fix_auto_apply;	1433	$self->fix_auto_apply;
1292	$self->decay_objects;
1293	$self->update_buttons;	1434	$self->update_buttons;
		1435	Coro::cede;
1294	$self->set_darkness_map;	1436	$self->set_darkness_map;
1295	$self->difficulty ($self->estimate_difficulty)	1437	$self->difficulty ($self->estimate_difficulty)
1296	unless $self->difficulty;	1438	unless $self->difficulty;
		1439	Coro::cede;
1297	$self->activate;	1440	$self->activate;
1298	}	1441	}
1299		1442
1300	Coro::cede;	1443	$self->post_load;
1301		1444
1302	$self->in_memory (cf::MAP_IN_MEMORY);	1445	$self->in_memory (cf::MAP_IN_MEMORY);
		1446	}
		1447
		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	}
1303	}	1479	}
1304		1480
1305	sub find_sync {	1481	sub find_sync {
1306	my ($path, $origin) = @_;	1482	my ($path, $origin) = @_;
1307		1483
1308	cf::sync_job { cf::map::find $path, $origin }	1484	cf::sync_job { find $path, $origin }
1309	}	1485	}
1310		1486
1311	sub do_load_sync {	1487	sub do_load_sync {
1312	my ($map) = @_;	1488	my ($map) = @_;
1313		1489
1314	cf::sync_job { $map->load };	1490	cf::sync_job { $map->load };
1315	}	1491	}
1316		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;
		1511	$map->load;
		1512
		1513	delete $MAP_PREFETCH{$path};
		1514	}
		1515	}
		1516	undef $MAP_PREFETCHER;
		1517	};
		1518	$MAP_PREFETCHER->prio (6);
		1519
		1520	()
		1521	}
		1522
1317	sub save {	1523	sub save {
1318	my ($self) = @_;	1524	my ($self) = @_;
1319		1525
		1526	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1527
1320	$self->{last_save} = $cf::RUNTIME;	1528	$self->{last_save} = $cf::RUNTIME;
1321		1529
1322	return unless $self->dirty;	1530	return unless $self->dirty;
1323		1531
1324	my $save = $self->{path}->save_path; utf8::encode $save;	1532	my $save = $self->save_path; utf8::encode $save;
1325	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1533	my $uniq = $self->uniq_path; utf8::encode $uniq;
1326		1534
1327	$self->{load_path} = $save;	1535	$self->{load_path} = $save;
1328		1536
1329	return if $self->{deny_save};	1537	return if $self->{deny_save};
1330		1538
1331	local $self->{last_access} = $self->last_access;#d#	1539	local $self->{last_access} = $self->last_access;#d#
1332		1540
		1541	cf::async {
		1542	$_->contr->save for $self->players;
		1543	};
		1544
1333	if ($uniq) {	1545	if ($uniq) {
1334	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1546	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1335	$self->save_objects ($uniq, cf::IO_UNIQUES);	1547	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1336	} else {	1548	} else {
1337	$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);
1338	}	1550	}
1339	}	1551	}
1340		1552
1341	sub swap_out {	1553	sub swap_out {
1342	my ($self) = @_;	1554	my ($self) = @_;
1343		1555
1344	# save first because save cedes	1556	# save first because save cedes
1345	$self->save;	1557	$self->save;
		1558
		1559	my $lock = cf::lock_acquire "map_data:" . $self->path;
1346		1560
1347	return if $self->players;	1561	return if $self->players;
1348	return if $self->in_memory != cf::MAP_IN_MEMORY;	1562	return if $self->in_memory != cf::MAP_IN_MEMORY;
1349	return if $self->{deny_save};	1563	return if $self->{deny_save};
1350		1564
…		…
1354		1568
1355	sub reset_at {	1569	sub reset_at {
1356	my ($self) = @_;	1570	my ($self) = @_;
1357		1571
1358	# TODO: safety, remove and allow resettable per-player maps	1572	# TODO: safety, remove and allow resettable per-player maps
1359	return 1e99 if $self->{path}{user_rel};	1573	return 1e99 if $self->isa ("ext::map_per_player");#d#
1360	return 1e99 if $self->{deny_reset};	1574	return 1e99 if $self->{deny_reset};
1361		1575
1362	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1576	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1363	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;
1364		1578
…		…
1369	my ($self) = @_;	1583	my ($self) = @_;
1370		1584
1371	$self->reset_at <= $cf::RUNTIME	1585	$self->reset_at <= $cf::RUNTIME
1372	}	1586	}
1373		1587
1374	sub unlink_save {
1375	my ($self) = @_;
1376
1377	utf8::encode (my $save = $self->{path}->save_path);
1378	aioreq_pri 3; IO::AIO::aio_unlink $save;
1379	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1380	}
1381
1382	sub rename {
1383	my ($self, $new_path) = @_;
1384
1385	$self->unlink_save;
1386
1387	delete $cf::MAP{$self->path};
1388	$self->{path} = new cf::path $new_path;
1389	$self->path ($self->{path}->as_string);
1390	$cf::MAP{$self->path} = $self;
1391
1392	$self->save;
1393	}
1394
1395	sub reset {	1588	sub reset {
1396	my ($self) = @_;	1589	my ($self) = @_;
1397		1590
		1591	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1592
1398	return if $self->players;	1593	return if $self->players;
1399	return if $self->{path}{user_rel};#d#	1594	return if $self->isa ("ext::map_per_player");#d#
1400		1595
1401	warn "resetting map ", $self->path;#d#	1596	warn "resetting map ", $self->path;#d#
1402		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
1403	delete $cf::MAP{$self->path};	1608	delete $cf::MAP{$self->path};
		1609
		1610	$self->clear;
1404		1611
1405	$_->clear_links_to ($self) for values %cf::MAP;	1612	$_->clear_links_to ($self) for values %cf::MAP;
1406		1613
1407	$self->unlink_save;	1614	$self->unlink_save;
1408	$self->destroy;	1615	$self->destroy;
…		…
1411	my $nuke_counter = "aaaa";	1618	my $nuke_counter = "aaaa";
1412		1619
1413	sub nuke {	1620	sub nuke {
1414	my ($self) = @_;	1621	my ($self) = @_;
1415		1622
		1623	delete $cf::MAP{$self->path};
		1624
		1625	$self->unlink_save;
		1626
		1627	bless $self, "cf::map";
		1628	delete $self->{deny_reset};
1416	$self->{deny_save} = 1;	1629	$self->{deny_save} = 1;
1417	$self->reset_timeout (1);	1630	$self->reset_timeout (1);
1418	$self->rename ("{nuke}/" . ($nuke_counter++));	1631	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1632
		1633	$cf::MAP{$self->path} = $self;
		1634
1419	$self->reset; # polite request, might not happen	1635	$self->reset; # polite request, might not happen
1420	}	1636	}
1421		1637
1422	sub customise_for {	1638	=item cf::map::unique_maps
1423	my ($map, $ob) = @_;
1424		1639
1425	if ($map->per_player) {	1640	Returns an arrayref of paths of all shared maps that have
1426	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1641	instantiated unique items. May block.
1427	}
1428		1642
1429	$map	1643	=cut
1430	}
1431		1644
1432	sub emergency_save {	1645	sub unique_maps() {
1433	my $freeze_guard = cf::freeze_mainloop;	1646	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1647	or return;
1434		1648
1435	warn "enter emergency map save\n";	1649	my @paths;
1436		1650
1437	cf::sync_job {	1651	for (@$files) {
1438	warn "begin emergency map save\n";	1652	utf8::decode $_;
1439	$_->save for values %cf::MAP;	1653	next if /\.pst$/;
		1654	next unless /^$PATH_SEP/o;
		1655
		1656	push @paths, cf::map::normalise $_;
1440	};	1657	}
1441		1658
1442	warn "end emergency map save\n";	1659	\@paths
1443	}	1660	}
1444		1661
1445	package cf;	1662	package cf;
1446		1663
1447	=back	1664	=back
1448		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
1449		1692
1450	=head3 cf::object::player	1693	=head3 cf::object::player
1451		1694
1452	=over 4	1695	=over 4
1453		1696
…		…
1493		1736
1494	=item $player_object->enter_link	1737	=item $player_object->enter_link
1495		1738
1496	Freezes the player and moves him/her to a special map (C<{link}>).	1739	Freezes the player and moves him/her to a special map (C<{link}>).
1497		1740
1498	The player should be reaosnably safe there for short amounts of time. You	1741	The player should be reasonably safe there for short amounts of time. You
1499	I<MUST> call C<leave_link> as soon as possible, though.	1742	I<MUST> call C<leave_link> as soon as possible, though.
1500		1743
		1744	Will never block.
		1745
1501	=item $player_object->leave_link ($map, $x, $y)	1746	=item $player_object->leave_link ($map, $x, $y)
1502		1747
1503	Moves the player out of the specila link map onto the given map. If the	1748	Moves the player out of the special C<{link}> map onto the specified
1504	map is not valid (or omitted), the player will be moved back to the	1749	map. If the map is not valid (or omitted), the player will be moved back
1505	location he/she was before the call to C<enter_link>, or, if that fails,	1750	to the location he/she was before the call to C<enter_link>, or, if that
1506	to the emergency map position.	1751	fails, to the emergency map position.
1507		1752
1508	Might block.	1753	Might block.
1509		1754
1510	=cut	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	}
1511		1766
1512	sub cf::object::player::enter_link {	1767	sub cf::object::player::enter_link {
1513	my ($self) = @_;	1768	my ($self) = @_;
1514		1769
1515	$self->deactivate_recursive;	1770	$self->deactivate_recursive;
1516		1771
1517	return if $self->map == $LINK_MAP;	1772	return if UNIVERSAL::isa $self->map, "ext::map_link";
1518		1773
1519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1774	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1520	if $self->map;	1775	if $self->map;
1521		1776
1522	$self->enter_map ($LINK_MAP, 20, 20);	1777	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1523	}	1778	}
1524		1779
1525	sub cf::object::player::leave_link {	1780	sub cf::object::player::leave_link {
1526	my ($self, $map, $x, $y) = @_;	1781	my ($self, $map, $x, $y) = @_;
1527		1782
…		…
1545	# use -1 or undef as default coordinates, not 0, 0	1800	# use -1 or undef as default coordinates, not 0, 0
1546	($x, $y) = ($map->enter_x, $map->enter_y)	1801	($x, $y) = ($map->enter_x, $map->enter_y)
1547	if $x <=0 && $y <= 0;	1802	if $x <=0 && $y <= 0;
1548		1803
1549	$map->load;	1804	$map->load;
		1805	$map->load_diag;
1550		1806
		1807	return unless $self->contr->active;
1551	$self->activate_recursive;	1808	$self->activate_recursive;
		1809
		1810	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1552	$self->enter_map ($map, $x, $y);	1811	$self->enter_map ($map, $x, $y);
1553	}	1812	}
1554		1813
1555	cf::player->attach (	1814	cf::player->attach (
1556	on_logout => sub {	1815	on_logout => sub {
…		…
1568		1827
1569	# try to abort aborted map switching on player login :)	1828	# try to abort aborted map switching on player login :)
1570	# should happen only on crashes	1829	# should happen only on crashes
1571	if ($pl->ob->{_link_pos}) {	1830	if ($pl->ob->{_link_pos}) {
1572	$pl->ob->enter_link;	1831	$pl->ob->enter_link;
1573	cf::async {	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);
1574	# we need this sleep as the login has a concurrent enter_exit running	1837	# we need this sleep as the login has a concurrent enter_exit running
1575	# and this sleep increases chances of the player not ending up in scorn	1838	# and this sleep increases chances of the player not ending up in scorn
1576	Coro::Timer::sleep 1;	1839	Coro::Timer::sleep 1;
1577	$pl->ob->leave_link;	1840	$pl->ob->leave_link;
1578	};	1841	})->prio (2);
1579	}	1842	}
1580	},	1843	},
1581	);	1844	);
1582		1845
1583	=item $player_object->goto_map ($path, $x, $y)	1846	=item $player_object->goto ($path, $x, $y)
1584		1847
1585	=cut	1848	=cut
1586		1849
1587	sub cf::object::player::goto_map {	1850	sub cf::object::player::goto {
1588	my ($self, $path, $x, $y) = @_;	1851	my ($self, $path, $x, $y) = @_;
1589		1852
1590	$self->enter_link;	1853	$self->enter_link;
1591		1854
1592	(cf::async {	1855	(async {
1593	$path = new cf::path $path;	1856	my $map = eval {
1594
1595	my $map = cf::map::find $path->as_string;	1857	my $map = cf::map::find $path;
1596	$map = $map->customise_for ($self) if $map;	1858	$map = $map->customise_for ($self) if $map;
1597		1859	$map
1598	# warn "entering ", $map->path, " at ($x, $y)\n"	1860	} or
1599	# if $map;
1600
1601	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1861	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1602		1862
1603	$self->leave_link ($map, $x, $y);	1863	$self->leave_link ($map, $x, $y);
1604	})->prio (1);	1864	})->prio (1);
1605	}	1865	}
1606		1866
…		…
1610		1870
1611	sub parse_random_map_params {	1871	sub parse_random_map_params {
1612	my ($spec) = @_;	1872	my ($spec) = @_;
1613		1873
1614	my $rmp = { # defaults	1874	my $rmp = { # defaults
1615	xsize => 10,	1875	xsize => (cf::rndm 15, 40),
1616	ysize => 10,	1876	ysize => (cf::rndm 15, 40),
		1877	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1878	#layout => string,
1617	};	1879	};
1618		1880
1619	for (split /\n/, $spec) {	1881	for (split /\n/, $spec) {
1620	my ($k, $v) = split /\s+/, $_, 2;	1882	my ($k, $v) = split /\s+/, $_, 2;
1621		1883
…		…
1625	$rmp	1887	$rmp
1626	}	1888	}
1627		1889
1628	sub prepare_random_map {	1890	sub prepare_random_map {
1629	my ($exit) = @_;	1891	my ($exit) = @_;
		1892
		1893	my $guard = cf::lock_acquire "exit_prepare:$exit";
1630		1894
1631	# all this does is basically replace the /! path by	1895	# all this does is basically replace the /! path by
1632	# a new random map path (?random/...) with a seed	1896	# a new random map path (?random/...) with a seed
1633	# that depends on the exit object	1897	# that depends on the exit object
1634		1898
1635	my $rmp = parse_random_map_params $exit->msg;	1899	my $rmp = parse_random_map_params $exit->msg;
1636		1900
1637	if ($exit->map) {	1901	if ($exit->map) {
1638	$rmp->{region} = $exit->map->region_name;	1902	$rmp->{region} = $exit->region->name;
1639	$rmp->{origin_map} = $exit->map->path;	1903	$rmp->{origin_map} = $exit->map->path;
1640	$rmp->{origin_x} = $exit->x;	1904	$rmp->{origin_x} = $exit->x;
1641	$rmp->{origin_y} = $exit->y;	1905	$rmp->{origin_y} = $exit->y;
1642	}	1906	}
1643		1907
1644	$rmp->{random_seed} ||= $exit->random_seed;	1908	$rmp->{random_seed} ||= $exit->random_seed;
1645		1909
1646	my $data = cf::to_json $rmp;	1910	my $data = cf::to_json $rmp;
1647	my $md5 = Digest::MD5::md5_hex $data;	1911	my $md5 = Digest::MD5::md5_hex $data;
		1912	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1648		1913
1649	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) {
1650	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;
1651		1918
1652	$exit->slaying ("?random/$md5");	1919	$exit->slaying ("?random/$md5");
1653	$exit->msg (undef);	1920	$exit->msg (undef);
1654	}	1921	}
1655	}	1922	}
…		…
1657	sub cf::object::player::enter_exit {	1924	sub cf::object::player::enter_exit {
1658	my ($self, $exit) = @_;	1925	my ($self, $exit) = @_;
1659		1926
1660	return unless $self->type == cf::PLAYER;	1927	return unless $self->type == cf::PLAYER;
1661		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
1662	$self->enter_link;	1938	$self->enter_link;
1663		1939
1664	(cf::async {	1940	(async {
1665	$self->deactivate_recursive; # just to be sure	1941	$self->deactivate_recursive; # just to be sure
1666	unless (eval {	1942	unless (eval {
1667	prepare_random_map $exit	1943	$self->goto ($slaying, $hp, $sp);
1668	if $exit->slaying eq "/!";
1669
1670	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1671	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1672		1944
1673	1;	1945	1;
1674	}) {	1946	}) {
1675	$self->message ("Something went wrong deep within the crossfire server. "	1947	$self->message ("Something went wrong deep within the crossfire server. "
1676	. "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. "
1677	. "Please report this to the dungeon master",	1949	. "Please report this to the dungeon master!",
1678	cf::NDI_UNIQUE | cf::NDI_RED);	1950	cf::NDI_UNIQUE | cf::NDI_RED);
1679		1951
1680	warn "ERROR in enter_exit: $@";	1952	warn "ERROR in enter_exit: $@";
1681	$self->leave_link;	1953	$self->leave_link;
1682	}	1954	}
…		…
1737	# get handled first	2009	# get handled first
1738	my $queue = delete $ns->{query_queue}	2010	my $queue = delete $ns->{query_queue}
1739	or return; # be conservative, not sure how that can happen, but we saw a crash here	2011	or return; # be conservative, not sure how that can happen, but we saw a crash here
1740		2012
1741	(shift @$queue)->[1]->($msg);	2013	(shift @$queue)->[1]->($msg);
		2014	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1742		2015
1743	push @{ $ns->{query_queue} }, @$queue;	2016	push @{ $ns->{query_queue} }, @$queue;
1744		2017
1745	if (@{ $ns->{query_queue} } == @$queue) {	2018	if (@{ $ns->{query_queue} } == @$queue) {
1746	if (@$queue) {	2019	if (@$queue) {
…		…
1750	}	2023	}
1751	}	2024	}
1752	},	2025	},
1753	);	2026	);
1754		2027
1755	=item $client->coro (\&cb)	2028	=item $client->async (\&cb)
1756		2029
1757	Create a new coroutine, running the specified callback. The coroutine will	2030	Create a new coroutine, running the specified callback. The coroutine will
1758	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,
1759	or loss of connection).	2032	or loss of connection).
1760		2033
1761	=cut	2034	=cut
1762		2035
1763	sub cf::client::coro {	2036	sub cf::client::async {
1764	my ($self, $cb) = @_;	2037	my ($self, $cb) = @_;
1765		2038
1766	my $coro = &cf::async ($cb);	2039	my $coro = &Coro::async ($cb);
1767		2040
1768	$coro->on_destroy (sub {	2041	$coro->on_destroy (sub {
1769	delete $self->{_coro}{$coro+0};	2042	delete $self->{_coro}{$coro+0};
1770	});	2043	});
1771		2044
…		…
1907	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
1908	using it, it should be unique.	2181	using it, it should be unique.
1909		2182
1910	=over 4	2183	=over 4
1911		2184
1912	=item $hashref = cf::db_get $family
1913
1914	Return a hashref for use by the extension C<$family>, which can be
1915	modified. After modifications, you have to call C<cf::db_dirty> or
1916	C<cf::db_sync>.
1917
1918	=item $value = cf::db_get $family => $key	2185	=item $value = cf::db_get $family => $key
1919		2186
1920	Returns a single value from the database	2187	Returns a single value from the database.
1921
1922	=item cf::db_put $family => $hashref
1923
1924	Stores the given family hashref into the database. Updates are delayed, if
1925	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1926		2188
1927	=item cf::db_put $family => $key => $value	2189	=item cf::db_put $family => $key => $value
1928		2190
1929	Stores the given C<$value> in the family hash. Updates are delayed, if you	2191	Stores the given C<$value> in the family.
1930	want the data to be synced to disk immediately, use C<cf::db_sync>.
1931
1932	=item cf::db_dirty
1933
1934	Marks the database as dirty, to be updated at a later time.
1935
1936	=item cf::db_sync
1937
1938	Immediately write the database to disk I<if it is dirty>.
1939		2192
1940	=cut	2193	=cut
1941		2194
1942	our $DB;	2195	our $DB;
1943		2196
1944	{	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
1945	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;
1946		2216
1947	sub db_load() {	2217	cf::db_put (board => data => $pst->{board});
1948	$DB = stat $path ? Storable::retrieve $path : { };	2218	cf::db_put (guildrules => data => $pst->{guildrules});
1949	}	2219	cf::db_put (rent => balance => $pst->{rent}{balance});
		2220	BDB::db_env_txn_checkpoint $DB_ENV;
1950		2221
1951	my $pid;	2222	unlink $path;
1952
1953	sub db_save() {
1954	waitpid $pid, 0 if $pid;
1955	if (0 == ($pid = fork)) {
1956	$DB->{_meta}{version} = 1;
1957	Storable::nstore $DB, "$path~";
1958	rename "$path~", $path;
1959	cf::_exit 0 if defined $pid;
1960	}	2223	};
1961	}
1962
1963	my $dirty;
1964
1965	sub db_sync() {
1966	db_save if $dirty;
1967	undef $dirty;
1968	}
1969
1970	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1971	db_sync;
1972	});
1973
1974	sub db_dirty() {
1975	$dirty = 1;
1976	$idle->start;
1977	}
1978
1979	sub db_get($;$) {
1980	@_ >= 2
1981	? $DB->{$_[0]}{$_[1]}
1982	: ($DB->{$_[0]} ||= { })
1983	}
1984
1985	sub db_put($$;$) {
1986	if (@_ >= 3) {
1987	$DB->{$_[0]}{$_[1]} = $_[2];
1988	} else {
1989	$DB->{$_[0]} = $_[1];
1990	}
1991	db_dirty;
1992	}
1993
1994	cf::global->attach (
1995	prio => 10000,
1996	on_cleanup => sub {
1997	db_sync;
1998	},	2224	}
1999	);	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 { };
2000	}	2242	}
2001		2243
2002	#############################################################################	2244	#############################################################################
2003	# 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	}
2004		2251
2005	sub cfg_load {	2252	sub cfg_load {
2006	open my $fh, "<:utf8", cf::confdir . "/config"	2253	open my $fh, "<:utf8", cf::confdir . "/config"
2007	or return;	2254	or return;
2008		2255
2009	local $/;	2256	local $/;
2010	*CFG = YAML::Syck::Load <$fh>;	2257	*CFG = YAML::Syck::Load <$fh>;
2011		2258
2012	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2259	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2013		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
2014	if (exists $CFG{mlockall}) {	2264	if (exists $CFG{mlockall}) {
2015	eval {	2265	eval {
2016	$CFG{mlockall} ? &mlockall : &munlockall	2266	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2017	and die "WARNING: m(un)lockall failed: $!\n";	2267	and die "WARNING: m(un)lockall failed: $!\n";
2018	};	2268	};
2019	warn $@ if $@;	2269	warn $@ if $@;
2020	}	2270	}
		2271	}
		2272
		2273	sub init {
		2274	load_resources;
2021	}	2275	}
2022		2276
2023	sub main {	2277	sub main {
2024	# we must not ever block the main coroutine	2278	# we must not ever block the main coroutine
2025	local $Coro::idle = sub {	2279	local $Coro::idle = sub {
2026	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2280	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2027	(Coro::unblock_sub {	2281	(async {
2028	Event::one_event;	2282	Event::one_event;
2029	})->();	2283	})->prio (Coro::PRIO_MAX);
2030	};	2284	};
2031		2285
2032	cfg_load;	2286	cfg_load;
2033	db_load;	2287	db_init;
2034	load_extensions;	2288	load_extensions;
		2289
		2290	$TICK_WATCHER->start;
2035	Event::loop;	2291	Event::loop;
2036	}	2292	}
2037		2293
2038	#############################################################################	2294	#############################################################################
2039	# 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 $make_core;
		2350	}
2040		2351
2041	sub reload() {	2352	sub reload() {
2042	# can/must only be called in main	2353	# can/must only be called in main
2043	if ($Coro::current != $Coro::main) {	2354	if ($Coro::current != $Coro::main) {
2044	warn "can only reload from main coroutine\n";	2355	warn "can only reload from main coroutine";
2045	return;	2356	return;
2046	}	2357	}
2047		2358
2048	warn "reloading...";	2359	warn "reloading...";
2049		2360
2050	my $guard = freeze_mainloop;	2361	warn "entering sync_job";
		2362
		2363	cf::sync_job {
		2364	cf::write_runtime; # external watchdog should not bark
2051	cf::emergency_save;	2365	cf::emergency_save;
		2366	cf::write_runtime; # external watchdog should not bark
2052		2367
2053	eval {	2368	warn "syncing database to disk";
		2369	BDB::db_env_txn_checkpoint $DB_ENV;
		2370
2054	# 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
2055		2372
2056	# cancel all watchers	2373	warn "cancelling all WF_AUTOCANCEL watchers";
2057	for (Event::all_watchers) {	2374	for (Event::all_watchers) {
2058	$_->cancel if $_->data & WF_AUTOCANCEL;	2375	$_->cancel if $_->data & WF_AUTOCANCEL;
2059	}	2376	}
2060		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
2061	# cancel all extension coros	2387	warn "cancelling all extension coros";
2062	$_->cancel for values %EXT_CORO;	2388	$_->cancel for values %EXT_CORO;
2063	%EXT_CORO = ();	2389	%EXT_CORO = ();
2064		2390
2065	# unload all extensions	2391	warn "removing commands";
2066	for (@exts) {	2392	%COMMAND = ();
		2393
		2394	warn "removing ext commands";
		2395	%EXTCMD = ();
		2396
		2397	warn "unloading/nuking all extensions";
		2398	for my $pkg (@EXTS) {
2067	warn "unloading <$_>";	2399	warn "... unloading $pkg";
2068	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: $@";
2069	}	2406	}
2070		2407
		2408	warn "... nuking $pkg";
		2409	Symbol::delete_package $pkg;
		2410	}
		2411
2071	# unload all modules loaded from $LIBDIR	2412	warn "unloading all perl modules loaded from $LIBDIR";
2072	while (my ($k, $v) = each %INC) {	2413	while (my ($k, $v) = each %INC) {
2073	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2414	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2074		2415
2075	warn "removing <$k>";	2416	warn "... unloading $k";
2076	delete $INC{$k};	2417	delete $INC{$k};
2077		2418
2078	$k =~ s/\.pm$//;	2419	$k =~ s/\.pm$//;
2079	$k =~ s/\//::/g;	2420	$k =~ s/\//::/g;
2080		2421
…		…
2083	}	2424	}
2084		2425
2085	Symbol::delete_package $k;	2426	Symbol::delete_package $k;
2086	}	2427	}
2087		2428
2088	# sync database to disk
2089	cf::db_sync;
2090	IO::AIO::flush;
2091
2092	# get rid of safe::, as good as possible	2429	warn "getting rid of safe::, as good as possible";
2093	Symbol::delete_package "safe::$_"	2430	Symbol::delete_package "safe::$_"
2094	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);
2095		2432
2096	# remove register_script_function callbacks
2097	# TODO
2098
2099	# unload cf.pm "a bit"	2433	warn "unloading cf.pm \"a bit\"";
2100	delete $INC{"cf.pm"};	2434	delete $INC{"cf.pm"};
2101		2435
2102	# don't, removes xs symbols, too,	2436	# don't, removes xs symbols, too,
2103	# and global variables created in xs	2437	# and global variables created in xs
2104	#Symbol::delete_package __PACKAGE__;	2438	#Symbol::delete_package __PACKAGE__;
2105		2439
2106	# reload cf.pm	2440	warn "unload completed, starting to reload now";
		2441
2107	warn "reloading cf.pm";	2442	warn "reloading cf.pm";
2108	require cf;	2443	require cf;
2109	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2444	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2110		2445
2111	# load config and database again	2446	warn "loading config and database again";
2112	cf::cfg_load;	2447	cf::cfg_load;
2113	cf::db_load;
2114		2448
2115	# load extensions
2116	warn "load extensions";	2449	warn "loading extensions";
2117	cf::load_extensions;	2450	cf::load_extensions;
2118		2451
2119	# reattach attachments to objects	2452	warn "reattaching attachments to objects/players";
2120	warn "reattach";
2121	_global_reattach;	2453	_global_reattach;
2122	};	2454	warn "reattaching attachments to maps";
		2455	reattach $_ for values %MAP;
2123		2456
2124	if ($@) {	2457	warn "loading reloadable resources";
		2458	load_resources;
		2459
		2460	warn "leaving sync_job";
		2461
		2462	1
		2463	} or do {
2125	warn $@;	2464	warn $@;
2126	warn "error while reloading, exiting.";	2465	warn "error while reloading, exiting.";
2127	exit 1;	2466	exit 1;
2128	}	2467	};
2129		2468
2130	warn "reloaded successfully";	2469	warn "reloaded";
2131	};	2470	};
2132		2471
2133	#############################################################################	2472	our $RELOAD_WATCHER; # used only during reload
2134
2135	unless ($LINK_MAP) {
2136	$LINK_MAP = cf::map::new;
2137
2138	$LINK_MAP->width (41);
2139	$LINK_MAP->height (41);
2140	$LINK_MAP->alloc;
2141	$LINK_MAP->path ("{link}");
2142	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2143	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2144
2145	# dirty hack because... archetypes are not yet loaded
2146	Event->timer (
2147	after => 2,
2148	cb => sub {
2149	$_[0]->w->cancel;
2150
2151	# provide some exits "home"
2152	my $exit = cf::object::new "exit";
2153
2154	$exit->slaying ($EMERGENCY_POSITION->[0]);
2155	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2156	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2157
2158	$LINK_MAP->insert ($exit->clone, 19, 19);
2159	$LINK_MAP->insert ($exit->clone, 19, 20);
2160	$LINK_MAP->insert ($exit->clone, 19, 21);
2161	$LINK_MAP->insert ($exit->clone, 20, 19);
2162	$LINK_MAP->insert ($exit->clone, 20, 21);
2163	$LINK_MAP->insert ($exit->clone, 21, 19);
2164	$LINK_MAP->insert ($exit->clone, 21, 20);
2165	$LINK_MAP->insert ($exit->clone, 21, 21);
2166
2167	$exit->destroy;
2168	});
2169
2170	$LINK_MAP->{deny_save} = 1;
2171	$LINK_MAP->{deny_reset} = 1;
2172
2173	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2174	}
2175
2176	register "<global>", __PACKAGE__;
2177		2473
2178	register_command "reload" => sub {	2474	register_command "reload" => sub {
2179	my ($who, $arg) = @_;	2475	my ($who, $arg) = @_;
2180		2476
2181	if ($who->flag (FLAG_WIZ)) {	2477	if ($who->flag (FLAG_WIZ)) {
2182	$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 {
2183	reload;	2488	reload;
2184	$who->message ("end of reload.");	2489	undef $RELOAD_WATCHER;
		2490	},
		2491	);
2185	}	2492	}
2186	};	2493	};
2187		2494
2188	unshift @INC, $LIBDIR;	2495	unshift @INC, $LIBDIR;
		2496
		2497	my $bug_warning = 0;
2189		2498
2190	$TICK_WATCHER = Event->timer (	2499	$TICK_WATCHER = Event->timer (
2191	reentrant => 0,	2500	reentrant => 0,
		2501	parked => 1,
2192	prio => 0,	2502	prio => 0,
2193	at => $NEXT_TICK || $TICK,	2503	at => $NEXT_TICK || $TICK,
2194	data => WF_AUTOCANCEL,	2504	data => WF_AUTOCANCEL,
2195	cb => sub {	2505	cb => sub {
		2506	if ($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
2196	cf::server_tick; # one server iteration	2514	cf::server_tick; # one server iteration
2197	$RUNTIME += $TICK;	2515	$RUNTIME += $TICK;
2198	$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#
2199		2532
2200	# 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
2201	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2534	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2202		2535
2203	$TICK_WATCHER->at ($NEXT_TICK);	2536	$TICK_WATCHER->at ($NEXT_TICK);
2204	$TICK_WATCHER->start;	2537	$TICK_WATCHER->start;
2205	},	2538	},
2206	);	2539	);
2207		2540
		2541	{
2208	IO::AIO::max_poll_time $TICK * 0.2;	2542	BDB::max_poll_time $TICK * 0.1;
2209		2543	$BDB_POLL_WATCHER = Event->io (
2210	Event->io (	2544	reentrant => 0,
2211	fd => IO::AIO::poll_fileno,	2545	fd => BDB::poll_fileno,
2212	poll => 'r',	2546	poll => 'r',
2213	prio => 5,	2547	prio => 0,
2214	data => WF_AUTOCANCEL,
2215	cb => \&IO::AIO::poll_cb,
2216	);
2217
2218	Event->timer (
2219	data => WF_AUTOCANCEL,	2548	data => WF_AUTOCANCEL,
2220	after => 0,	2549	cb => \&BDB::poll_cb,
2221	interval => 10,	2550	);
2222	cb => sub {	2551	BDB::min_parallel 8;
2223	(Coro::unblock_sub {	2552
2224	write_runtime	2553	BDB::set_sync_prepare {
2225	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 $@;
2226	})->();	2587	};
2227	},	2588	}
2228	);	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	}
2229		2605
2230	END { cf::emergency_save }	2606	END { cf::emergency_save }
2231		2607
2232	1	2608	1
2233		2609

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