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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.237 by root, Fri Apr 13 05:08:51 2007 UTC

…		…
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Storable;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
12		13
13	use Coro 3.3;	14	use Coro 3.52 ();
		15	use Coro::State;
14	use Coro::Event;	16	use Coro::Event;
15	use Coro::Timer;	17	use Coro::Timer;
16	use Coro::Signal;	18	use Coro::Signal;
17	use Coro::Semaphore;	19	use Coro::Semaphore;
18	use Coro::AIO;	20	use Coro::AIO;
		21	use Coro::Storable;
19		22
		23	use BDB ();
		24	use Data::Dumper;
20	use Digest::MD5;	25	use Digest::MD5;
21	use Fcntl;	26	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	27	use YAML::Syck ();
		28	use IO::AIO 2.32 ();
24	use Time::HiRes;	29	use Time::HiRes;
		30	use Compress::LZF;
25		31
		32	# configure various modules to our taste
		33	#
		34	$Storable::canonical = 1; # reduce rsync transfers
		35	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		36	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		37
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	$Event::Eval = 1; # no idea why this is required, but it is
27		39
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	40	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	41	$YAML::Syck::ImplicitUnicode = 1;
30		42
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	43	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		44
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	45	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		46
35	our %COMMAND = ();	47	our %COMMAND = ();
36	our %COMMAND_TIME = ();	48	our %COMMAND_TIME = ();
		49
		50	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	51	our %EXTCMD = ();
		52	our %EXT_CORO = (); # coroutines bound to extensions
		53	our %EXT_MAP = (); # pluggable maps
38		54
		55	our $RELOAD; # number of reloads so far
39	our @EVENT;	56	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	57	our $LIBDIR = datadir . "/ext";
41		58
42	our $TICK = MAX_TIME * 1e-6;	59	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	60	our $TICK_WATCHER;
		61	our $AIO_POLL_WATCHER;
		62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	63	our $NEXT_TICK;
45	our $NOW;	64	our $NOW;
		65	our $USE_FSYNC = 1; # use fsync to write maps - default off
		66
		67	our $BDB_POLL_WATCHER;
		68	our $DB_ENV;
46		69
47	our %CFG;	70	our %CFG;
48		71
49	our $UPTIME; $UPTIME ||= time;	72	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	73	our $RUNTIME;
51		74
		75	our %PLAYER; # all users
52	our %MAP; # all maps	76	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	77	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	78	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	79	our $BDB_ENV_DIR = cf::localdir . "/db";
		80
		81	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		82	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		83
		84	# used to convert map paths into valid unix filenames by replacing / by ∕
		85	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		86
58	binmode STDOUT;	87	binmode STDOUT;
59	binmode STDERR;	88	binmode STDERR;
60		89
61	# read virtual server time, if available	90	# read virtual server time, if available
…		…
68	mkdir cf::localdir;	97	mkdir cf::localdir;
69	mkdir cf::localdir . "/" . cf::playerdir;	98	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	99	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	100	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	101	mkdir $RANDOM_MAPS;
		102	mkdir $BDB_ENV_DIR;
73		103
74	# a special map that is always available	104	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		105
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	106	sub cf::map::normalise;
78		107
79	#############################################################################	108	#############################################################################
80		109
81	=head2 GLOBAL VARIABLES	110	=head2 GLOBAL VARIABLES
82		111
…		…
106		135
107	=item %cf::CFG	136	=item %cf::CFG
108		137
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	138	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	139	from wherever your confdir points to.
		140
		141	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		142
		143	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		144	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		145	processing has been done. Call C<< ->wait >> on them to maximise the
		146	window of cpu time available, or simply to synchronise to the server tick.
111		147
112	=back	148	=back
113		149
114	=cut	150	=cut
115		151
…		…
119	utf8::encode $msg;	155	utf8::encode $msg;
120		156
121	$msg .= "\n"	157	$msg .= "\n"
122	unless $msg =~ /\n$/;	158	unless $msg =~ /\n$/;
123		159
124	LOG llevError, "cfperl: $msg";	160	LOG llevError, $msg;
125	};	161	};
126	}	162	}
127		163
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		183
148	$Event::DIED = sub {	184	$Event::DIED = sub {
149	warn "error in event callback: @_";	185	warn "error in event callback: @_";
150	};	186	};
151		187
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	188	=head2 UTILITY FUNCTIONS
157		189
158	=over 4	190	=over 4
159		191
160	=cut	192	=item dumpval $ref
161		193
		194	=cut
		195
		196	sub dumpval {
		197	eval {
		198	local $SIG{__DIE__};
		199	my $d;
		200	if (1) {
		201	$d = new Data::Dumper([$_[0]], ["*var"]);
		202	$d->Terse(1);
		203	$d->Indent(2);
		204	$d->Quotekeys(0);
		205	$d->Useqq(1);
		206	#$d->Bless(...);
		207	$d->Seen($_[1]) if @_ > 1;
		208	$d = $d->Dump();
		209	}
		210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		211	$d
		212	} || "[unable to dump $_[0]: '$@']";
		213	}
		214
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		216
164	=item $ref = cf::from_json $json	217	=item $ref = cf::from_json $json
165		218
166	Converts a JSON string into the corresponding perl data structure.	219	Converts a JSON string into the corresponding perl data structure.
167		220
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	221	=item $json = cf::to_json $ref
176		222
177	Converts a perl data structure into its JSON representation.	223	Converts a perl data structure into its JSON representation.
178		224
179	=cut	225	=item cf::lock_wait $string
180		226
181	sub to_json($) {	227	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	228
183	JSON::Syck::Dump $_[0]	229	=item my $lock = cf::lock_acquire $string
		230
		231	Wait until the given lock is available and then acquires it and returns
		232	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		233	for example when the coroutine gets canceled), the lock is automatically
		234	returned.
		235
		236	Lock names should begin with a unique identifier (for example, cf::map::find
		237	uses map_find and cf::map::load uses map_load).
		238
		239	=cut
		240
		241	our %LOCK;
		242
		243	sub lock_wait($) {
		244	my ($key) = @_;
		245
		246	# wait for lock, if any
		247	while ($LOCK{$key}) {
		248	push @{ $LOCK{$key} }, $Coro::current;
		249	Coro::schedule;
		250	}
184	}	251	}
		252
		253	sub lock_acquire($) {
		254	my ($key) = @_;
		255
		256	# wait, to be sure we are not locked
		257	lock_wait $key;
		258
		259	$LOCK{$key} = [];
		260
		261	Coro::guard {
		262	# wake up all waiters, to be on the safe side
		263	$_->ready for @{ delete $LOCK{$key} };
		264	}
		265	}
		266
		267	sub freeze_mainloop {
		268	return unless $TICK_WATCHER->is_active;
		269
		270	my $guard = Coro::guard {
		271	$TICK_WATCHER->start;
		272	};
		273	$TICK_WATCHER->stop;
		274	$guard
		275	}
		276
		277	=item cf::async { BLOCK }
		278
		279	Currently the same as Coro::async_pool, meaning you cannot use
		280	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		281	thing you are allowed to do is call C<prio> on it.
		282
		283	=cut
		284
		285	BEGIN { *async = \&Coro::async_pool }
185		286
186	=item cf::sync_job { BLOCK }	287	=item cf::sync_job { BLOCK }
187		288
188	The design of crossfire+ requires that the main coro ($Coro::main) is	289	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	290	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	298	=cut
198		299
199	sub sync_job(&) {	300	sub sync_job(&) {
200	my ($job) = @_;	301	my ($job) = @_;
201		302
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	303	if ($Coro::current == $Coro::main) {
		304	# this is the main coro, too bad, we have to block
		305	# till the operation succeeds, freezing the server :/
		306
212	# TODO: use suspend/resume instead	307	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	308	# (but this is cancel-safe)
		309	my $freeze_guard = freeze_mainloop;
		310
		311	my $busy = 1;
		312	my @res;
		313
		314	(async {
		315	@res = eval { $job->() };
		316	warn $@ if $@;
		317	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	318	})->prio (Coro::PRIO_MAX);
		319
215	while ($busy) {	320	while ($busy) {
216	Coro::cede_notself;	321	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	322	}
		323
		324	wantarray ? @res : $res[0]
219	} else {	325	} else {
220	$coro->join;	326	# we are in another coroutine, how wonderful, everything just works
		327
		328	$job->()
221	}	329	}
222
223	wantarray ? @res : $res[0]
224	}	330	}
225		331
226	=item $coro = cf::coro { BLOCK }	332	=item $coro = cf::async_ext { BLOCK }
227		333
228	Creates and returns a new coro. This coro is automcatially being canceled	334	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	335	extension calling this is being unloaded.
230		336
231	=cut	337	=cut
232		338
233	sub coro(&) {	339	sub async_ext(&) {
234	my $cb = shift;	340	my $cb = shift;
235		341
236	my $coro; $coro = async {	342	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		343
243	$coro->on_destroy (sub {	344	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	345	delete $EXT_CORO{$coro+0};
245	});	346	});
246	$EXT_CORO{$coro+0} = $coro;	347	$EXT_CORO{$coro+0} = $coro;
247		348
248	$coro	349	$coro
249	}	350	}
250		351
251	sub write_runtime {	352	sub write_runtime {
		353	my $guard = cf::lock_acquire "write_runtime";
		354
252	my $runtime = cf::localdir . "/runtime";	355	my $runtime = cf::localdir . "/runtime";
253		356
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	358	or return;
256		359
257	my $value = $cf::RUNTIME;	360	my $value = $cf::RUNTIME + 90 + 10;
		361	# 10 is the runtime save interval, for a monotonic clock
		362	# 60 allows for the watchdog to kill the server.
		363
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	364	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	365	and return;
260		366
		367	# always fsync - this file is important
261	aio_fsync $fh	368	aio_fsync $fh
262	and return;	369	and return;
263		370
264	close $fh	371	close $fh
265	or return;	372	or return;
…		…
268	and return;	375	and return;
269		376
270	1	377	1
271	}	378	}
272		379
		380	=item cf::datalog type => key => value, ...
		381
		382	Log a datalog packet of the given type with the given key-value pairs.
		383
		384	=cut
		385
		386	sub datalog($@) {
		387	my ($type, %kv) = @_;
		388	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		389	}
		390
273	=back	391	=back
274		392
275	=cut	393	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		394
387	#############################################################################	395	#############################################################################
388		396
389	=head2 ATTACHABLE OBJECTS	397	=head2 ATTACHABLE OBJECTS
390		398
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	524	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	525	our @CB_MAP = ();
518		526
519	my %attachment;	527	my %attachment;
520		528
		529	sub cf::attachable::thawer_merge {
		530	# simply override everything except _meta
		531	local $_[0]{_meta};
		532	%{$_[0]} = %{$_[1]};
		533	}
		534
521	sub _attach_cb($$$$) {	535	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	536	my ($registry, $event, $prio, $cb) = @_;
523		537
524	use sort 'stable';	538	use sort 'stable';
525		539
…		…
696	# object support	710	# object support
697		711
698	sub reattach {	712	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	713	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	714	my ($obj) = @_;
		715
		716	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		717
702	my $registry = $obj->registry;	718	my $registry = $obj->registry;
703		719
704	@$registry = ();	720	@$registry = ();
705		721
…		…
752	$filename, length $$rdata, scalar @$objs;	768	$filename, length $$rdata, scalar @$objs;
753		769
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	771	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	773	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	774	close $fh;
759		775
760	if (@$objs) {	776	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	778	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	779	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	780	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	781	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	782	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	783	aio_rename "$filename.pst~", "$filename.pst";
768	}	784	}
769	} else {	785	} else {
770	aio_unlink "$filename.pst";	786	aio_unlink "$filename.pst";
…		…
798	or return;	814	or return;
799		815
800	unless (aio_stat "$filename.pst") {	816	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	817	(aio_load "$filename.pst", $av) >= 0
802	or return;	818	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	819	$av = eval { (Storable::thaw $av)->{objs} };
804	}	820	}
805		821
		822	warn sprintf "loading %s (%d)\n",
		823	$filename, length $data, scalar @{$av || []};#d#
806	return ($data, $av);	824	return ($data, $av);
807	}	825	}
808		826
809	#############################################################################	827	#############################################################################
810	# command handling &c	828	# command handling &c
…		…
835	=cut	853	=cut
836		854
837	sub register_extcmd {	855	sub register_extcmd {
838	my ($name, $cb) = @_;	856	my ($name, $cb) = @_;
839		857
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	858	$EXTCMD{$name} = $cb;
844	}	859	}
845		860
846	cf::player->attach (	861	cf::player->attach (
847	on_command => sub {	862	on_command => sub {
848	my ($pl, $name, $params) = @_;	863	my ($pl, $name, $params) = @_;
…		…
861		876
862	my $msg = eval { from_json $buf };	877	my $msg = eval { from_json $buf };
863		878
864	if (ref $msg) {	879	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	881	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	882	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	883	}
869	}	884	}
870	} else {	885	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		888
874	cf::override;	889	cf::override;
875	},	890	},
876	);	891	);
877		892
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	893	sub load_extension {
885	my ($path) = @_;	894	my ($path) = @_;
886		895
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
888	my $base = $1;	897	my $base = $1;
889	my $pkg = $1;	898	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;	899	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";	900	$pkg = "ext::$pkg";
892		901
893	warn "loading '$path' into '$pkg'\n";	902	warn "... loading '$path' into '$pkg'\n";
894		903
895	open my $fh, "<:utf8", $path	904	open my $fh, "<:utf8", $path
896	or die "$path: $!";	905	or die "$path: $!";
897		906
898	my $source =	907	my $source =
899	"package $pkg; use strict; use utf8;\n"	908	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"	909	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })	910	. (do { local $/; <$fh> })
902	. "\n};\n1";	911	. "\n};\n1";
903		912
904	eval $source	913	unless (eval $source) {
905	or die $@ ? "$path: $@\n"	914	my $msg = $@ ? "$path: $@\n"
906	: "extension disabled.\n";	915	: "extension disabled.\n";
907		916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908	push @exts, $pkg;	917	warn $@;
909	$ext_pkg{$base} = $pkg;	918	warn "mandatory extension failed to load, exiting.\n";
910		919	exit 1;
911	# no strict 'refs';	920	}
912	# @{"$pkg\::ISA"} = ext::;	921	die $@;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	922	}
927		923
928	# remove commands	924	push @EXTS, $pkg;
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	925	}
953		926
954	sub load_extensions {	927	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {	928	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	929	next unless -r $ext;
…		…
960	} or warn "$ext not loaded: $@";	933	} or warn "$ext not loaded: $@";
961	}	934	}
962	}	935	}
963		936
964	#############################################################################	937	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001		938
1002	=head2 CORE EXTENSIONS	939	=head2 CORE EXTENSIONS
1003		940
1004	Functions and methods that extend core crossfire objects.	941	Functions and methods that extend core crossfire objects.
1005		942
		943	=cut
		944
		945	package cf::player;
		946
		947	use Coro::AIO;
		948
1006	=head3 cf::player	949	=head3 cf::player
1007		950
1008	=over 4	951	=over 4
1009		952
1010	=item cf::player::exists $login	953	=item cf::player::find $login
1011		954
1012	Returns true when the given account exists.	955	Returns the given player object, loading it if necessary (might block).
1013		956
1014	=cut	957	=cut
1015		958
1016	sub cf::player::exists($) {	959	sub playerdir($) {
1017	cf::player::find $_[0]	960	cf::localdir
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	961	. "/"
		962	. cf::playerdir
		963	. "/"
		964	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1019	}	965	}
1020		966
		967	sub path($) {
		968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		969
		970	(playerdir $login) . "/playerdata"
		971	}
		972
		973	sub find_active($) {
		974	$cf::PLAYER{$_[0]}
		975	and $cf::PLAYER{$_[0]}->active
		976	and $cf::PLAYER{$_[0]}
		977	}
		978
		979	sub exists($) {
		980	my ($login) = @_;
		981
		982	$cf::PLAYER{$login}
		983	or cf::sync_job { !aio_stat path $login }
		984	}
		985
		986	sub find($) {
		987	return $cf::PLAYER{$_[0]} || do {
		988	my $login = $_[0];
		989
		990	my $guard = cf::lock_acquire "user_find:$login";
		991
		992	$cf::PLAYER{$_[0]} || do {
		993	# rename old playerfiles to new ones
		994	#TODO: remove when no longer required
		995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		997	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		998	aio_unlink +(playerdir $login) . "/$login.pl";
		999
		1000	my $pl = load_pl path $login
		1001	or return;
		1002	$cf::PLAYER{$login} = $pl
		1003	}
		1004	}
		1005	}
		1006
		1007	sub save($) {
		1008	my ($pl) = @_;
		1009
		1010	return if $pl->{deny_save};
		1011
		1012	my $path = path $pl;
		1013	my $guard = cf::lock_acquire "user_save:$path";
		1014
		1015	return if $pl->{deny_save};
		1016
		1017	aio_mkdir playerdir $pl, 0770;
		1018	$pl->{last_save} = $cf::RUNTIME;
		1019
		1020	$pl->save_pl ($path);
		1021	Coro::cede;
		1022	}
		1023
		1024	sub new($) {
		1025	my ($login) = @_;
		1026
		1027	my $self = create;
		1028
		1029	$self->ob->name ($login);
		1030	$self->{deny_save} = 1;
		1031
		1032	$cf::PLAYER{$login} = $self;
		1033
		1034	$self
		1035	}
		1036
		1037	=item $pl->quit_character
		1038
		1039	Nukes the player without looking back. If logged in, the connection will
		1040	be destroyed. May block for a long time.
		1041
		1042	=cut
		1043
		1044	sub quit_character {
		1045	my ($pl) = @_;
		1046
		1047	my $name = $pl->ob->name;
		1048
		1049	$pl->{deny_save} = 1;
		1050	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1051
		1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1053	$pl->deactivate;
		1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1055	$pl->ns->destroy if $pl->ns;
		1056
		1057	my $path = playerdir $pl;
		1058	my $temp = "$path~$cf::RUNTIME~deleting~";
		1059	aio_rename $path, $temp;
		1060	delete $cf::PLAYER{$pl->ob->name};
		1061	$pl->destroy;
		1062
		1063	my $prefix = qr<^~\Q$name\E/>;
		1064
		1065	# nuke player maps
		1066	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1067
		1068	IO::AIO::aio_rmtree $temp;
		1069	}
		1070
		1071	=item $pl->kick
		1072
		1073	Kicks a player out of the game. This destroys the connection.
		1074
		1075	=cut
		1076
		1077	sub kick {
		1078	my ($pl, $kicker) = @_;
		1079
		1080	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1081	$pl->killer ("kicked");
		1082	$pl->ns->destroy;
		1083	}
		1084
		1085	=item cf::player::list_logins
		1086
		1087	Returns am arrayref of all valid playernames in the system, can take a
		1088	while and may block, so not sync_job-capable, ever.
		1089
		1090	=cut
		1091
		1092	sub list_logins {
		1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1094	or return [];
		1095
		1096	my @logins;
		1097
		1098	for my $login (@$dirs) {
		1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1100	aio_read $fh, 0, 512, my $buf, 0 or next;
		1101	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1102
		1103	utf8::decode $login;
		1104	push @logins, $login;
		1105	}
		1106
		1107	\@logins
		1108	}
		1109
		1110	=item $player->maps
		1111
		1112	Returns an arrayref of map paths that are private for this
		1113	player. May block.
		1114
		1115	=cut
		1116
		1117	sub maps($) {
		1118	my ($pl) = @_;
		1119
		1120	$pl = ref $pl ? $pl->ob->name : $pl;
		1121
		1122	my $files = aio_readdir playerdir $pl
		1123	or return;
		1124
		1125	my @paths;
		1126
		1127	for (@$files) {
		1128	utf8::decode $_;
		1129	next if /\.(?:pl|pst)$/;
		1130	next unless /^$PATH_SEP/o;
		1131
		1132	push @paths, cf::map::normalise "~$pl/$_";
		1133	}
		1134
		1135	\@paths
		1136	}
		1137
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1138	=item $player->ext_reply ($msgid, %msg)
1022		1139
1023	Sends an ext reply to the player.	1140	Sends an ext reply to the player.
1024		1141
1025	=cut	1142	=cut
1026		1143
1027	sub cf::player::ext_reply($$$%) {	1144	sub ext_reply($$%) {
1028	my ($self, $id, %msg) = @_;	1145	my ($self, $id, %msg) = @_;
1029		1146
1030	$msg{msgid} = $id;	1147	$msg{msgid} = $id;
1031		1148
1032	$self->send ("ext " . to_json \%msg);	1149	$self->send ("ext " . cf::to_json \%msg);
1033	}	1150	}
		1151
		1152	=item $player->ext_event ($type, %msg)
		1153
		1154	Sends an ext event to the client.
		1155
		1156	=cut
		1157
		1158	sub ext_event($$%) {
		1159	my ($self, $type, %msg) = @_;
		1160
		1161	$self->ns->ext_event ($type, %msg);
		1162	}
		1163
		1164	package cf;
1034		1165
1035	=back	1166	=back
1036		1167
1037		1168
1038	=head3 cf::map	1169	=head3 cf::map
…		…
1044	package cf::map;	1175	package cf::map;
1045		1176
1046	use Fcntl;	1177	use Fcntl;
1047	use Coro::AIO;	1178	use Coro::AIO;
1048		1179
		1180	use overload
		1181	'""' => \&as_string,
		1182	fallback => 1;
		1183
1049	our $MAX_RESET = 7200;	1184	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1185	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1186
1054	sub generate_random_map {	1187	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1188	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1189	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1190	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1191	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1192	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1193	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1194	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1195	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1196	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1197	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1198	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1199	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1200	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1201	(cf::region::find $rmp->{region}), $rmp->{custom}
		1202	)
		1203	}
		1204
		1205	=item cf::map->register ($regex, $prio)
		1206
		1207	Register a handler for the map path matching the given regex at the
		1208	givne priority (higher is better, built-in handlers have priority 0, the
		1209	default).
		1210
		1211	=cut
		1212
		1213	sub register {
		1214	my (undef, $regex, $prio) = @_;
		1215	my $pkg = caller;
		1216
		1217	no strict;
		1218	push @{"$pkg\::ISA"}, __PACKAGE__;
		1219
		1220	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1221	}
		1222
		1223	# also paths starting with '/'
		1224	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1225
		1226	sub thawer_merge {
		1227	my ($self, $merge) = @_;
		1228
		1229	# we have to keep some variables in memory intact
		1230	local $self->{path};
		1231	local $self->{load_path};
		1232	local $self->{deny_save};
		1233	local $self->{deny_reset};
		1234
		1235	$self->SUPER::thawer_merge ($merge);
		1236	}
		1237
		1238	sub normalise {
		1239	my ($path, $base) = @_;
		1240
		1241	$path = "$path"; # make sure its a string
		1242
		1243	$path =~ s/\.map$//;
		1244
		1245	# map plan:
		1246	#
		1247	# /! non-realised random map exit (special hack!)
		1248	# {... are special paths that are not being touched
		1249	# ?xxx/... are special absolute paths
		1250	# ?random/... random maps
		1251	# /... normal maps
		1252	# ~user/... per-player map of a specific user
		1253
		1254	$path =~ s/$PATH_SEP/\//go;
		1255
		1256	# treat it as relative path if it starts with
		1257	# something that looks reasonable
		1258	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1259	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1260
		1261	$base =~ s{[^/]+/?$}{};
		1262	$path = "$base/$path";
		1263	}
		1264
		1265	for ($path) {
		1266	redo if s{//}{/};
		1267	redo if s{/\.?/}{/};
		1268	redo if s{/[^/]+/\.\./}{/};
		1269	}
		1270
		1271	$path
		1272	}
		1273
		1274	sub new_from_path {
		1275	my (undef, $path, $base) = @_;
		1276
		1277	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1278
		1279	$path = normalise $path, $base;
		1280
		1281	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1282	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1283	my $self = bless cf::map::new, $pkg;
		1284	$self->{path} = $path; $self->path ($path);
		1285	$self->init; # pass $1 etc.
		1286	return $self;
		1287	}
		1288	}
		1289
		1290	Carp::carp "unable to resolve path '$path' (base '$base').";
		1291	()
		1292	}
		1293
		1294	sub init {
		1295	my ($self) = @_;
		1296
		1297	$self
		1298	}
		1299
		1300	sub as_string {
		1301	my ($self) = @_;
		1302
		1303	"$self->{path}"
		1304	}
		1305
		1306	# the displayed name, this is a one way mapping
		1307	sub visible_name {
		1308	&as_string
		1309	}
		1310
		1311	# the original (read-only) location
		1312	sub load_path {
		1313	my ($self) = @_;
		1314
		1315	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1316	}
		1317
		1318	# the temporary/swap location
		1319	sub save_path {
		1320	my ($self) = @_;
		1321
		1322	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1323	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1324	}
		1325
		1326	# the unique path, undef == no special unique path
		1327	sub uniq_path {
		1328	my ($self) = @_;
		1329
		1330	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1331	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1071	}	1332	}
1072		1333
1073	# and all this just because we cannot iterate over	1334	# and all this just because we cannot iterate over
1074	# all maps in C++...	1335	# all maps in C++...
1075	sub change_all_map_light {	1336	sub change_all_map_light {
1076	my ($change) = @_;	1337	my ($change) = @_;
1077		1338
1078	$_->change_map_light ($change) for values %cf::MAP;	1339	$_->change_map_light ($change)
		1340	for grep $_->outdoor, values %cf::MAP;
1079	}	1341	}
1080		1342
		1343	sub unlink_save {
		1344	my ($self) = @_;
		1345
		1346	utf8::encode (my $save = $self->save_path);
		1347	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1348	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1349	}
		1350
1081	sub try_load_header($) {	1351	sub load_header_from($) {
1082	my ($path) = @_;	1352	my ($self, $path) = @_;
1083		1353
1084	utf8::encode $path;	1354	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1355	#aio_open $path, O_RDONLY, 0
		1356	# or return;
		1357
		1358	$self->_load_header ($path)
1086	or return;	1359	or return;
1087		1360
1088	my $map = cf::map::new	1361	$self->{load_path} = $path;
		1362
		1363	1
		1364	}
		1365
		1366	sub load_header_orig {
		1367	my ($self) = @_;
		1368
		1369	$self->load_header_from ($self->load_path)
		1370	}
		1371
		1372	sub load_header_temp {
		1373	my ($self) = @_;
		1374
		1375	$self->load_header_from ($self->save_path)
		1376	}
		1377
		1378	sub prepare_temp {
		1379	my ($self) = @_;
		1380
		1381	$self->last_access ((delete $self->{last_access})
		1382	|| $cf::RUNTIME); #d#
		1383	# safety
		1384	$self->{instantiate_time} = $cf::RUNTIME
		1385	if $self->{instantiate_time} > $cf::RUNTIME;
		1386	}
		1387
		1388	sub prepare_orig {
		1389	my ($self) = @_;
		1390
		1391	$self->{load_original} = 1;
		1392	$self->{instantiate_time} = $cf::RUNTIME;
		1393	$self->last_access ($cf::RUNTIME);
		1394	$self->instantiate;
		1395	}
		1396
		1397	sub load_header {
		1398	my ($self) = @_;
		1399
		1400	if ($self->load_header_temp) {
		1401	$self->prepare_temp;
		1402	} else {
		1403	$self->load_header_orig
1089	or return;	1404	or return;
		1405	$self->prepare_orig;
		1406	}
1090		1407
1091	$map->load_header ($path)	1408	1
1092	or return;
1093
1094	$map->{load_path} = $path;
1095	use Data::Dumper; warn Dumper $map;#d#
1096
1097	$map
1098	}	1409	}
1099		1410
		1411	sub find;
1100	sub find_map {	1412	sub find {
1101	my ($path, $origin) = @_;	1413	my ($path, $origin) = @_;
1102		1414
1103	#warn "find_map<$path,$origin>\n";#d#	1415	$path = normalise $path, $origin && $origin->path;
1104		1416
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1417	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1418
1108	$cf::MAP{$key} || do {	1419	$cf::MAP{$path} || do {
1109	# do it the slow way	1420	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1421	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1422	or return;
1124		1423
1125	$map->{load_original} = 1;
1126	$map->{instantiate_time} = $cf::RUNTIME;
1127	$map->instantiate;
1128
1129	# per-player maps become, after loading, normal maps
1130	$map->per_player (0) if $path->{user_rel};
1131	}
1132
1133	$map->path ($key);
1134	$map->{path} = $path;
1135	$map->last_access ($cf::RUNTIME);	1424	$map->{last_save} = $cf::RUNTIME;
1136		1425
1137	$map->reset if $map->should_reset;	1426	$map->load_header
		1427	or return;
1138		1428
		1429	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1430	# doing this can freeze the server in a sync job, obviously
		1431	#$cf::WAIT_FOR_TICK->wait;
		1432	$map->reset;
		1433	undef $guard;
		1434	return find $path;
		1435	}
		1436
1139	$cf::MAP{$key} = $map	1437	$cf::MAP{$path} = $map
1140	}	1438	}
1141	}	1439	}
		1440
		1441	sub pre_load { }
		1442	sub post_load { }
1142		1443
1143	sub load {	1444	sub load {
1144	my ($self) = @_;	1445	my ($self) = @_;
1145		1446
		1447	local $self->{deny_reset} = 1; # loading can take a long time
		1448
		1449	my $path = $self->{path};
		1450	my $guard = cf::lock_acquire "map_load:$path";
		1451
1146	return if $self->in_memory != cf::MAP_SWAPPED;	1452	return if $self->in_memory != cf::MAP_SWAPPED;
1147		1453
1148	$self->in_memory (cf::MAP_LOADING);	1454	$self->in_memory (cf::MAP_LOADING);
1149		1455
1150	my $path = $self->{path};
1151
1152	$self->alloc;	1456	$self->alloc;
		1457
		1458	$self->pre_load;
		1459
1153	$self->load_objects ($self->{load_path}, 1)	1460	$self->_load_objects ($self->{load_path}, 1)
1154	or return;	1461	or return;
1155		1462
1156	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};	1463	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1464	if delete $self->{load_original};
1157		1465
1158	if (my $uniq = $path->uniq_path) {	1466	if (my $uniq = $self->uniq_path) {
1159	utf8::encode $uniq;	1467	utf8::encode $uniq;
1160	if (aio_open $uniq, O_RDONLY, 0) {	1468	if (aio_open $uniq, O_RDONLY, 0) {
1161	$self->clear_unique_items;	1469	$self->clear_unique_items;
1162	$self->load_objects ($uniq, 0);	1470	$self->_load_objects ($uniq, 0);
1163	}	1471	}
1164	}	1472	}
		1473
		1474	Coro::cede;
1165		1475
1166	# now do the right thing for maps	1476	# now do the right thing for maps
1167	$self->link_multipart_objects;	1477	$self->link_multipart_objects;
1168		1478
1169	if ($self->{path}->is_style_map) {	1479	unless ($self->{deny_activate}) {
1170	$self->{deny_save} = 1;	1480	$self->decay_objects;
1171	$self->{deny_reset} = 1;
1172	} else {
1173	$self->fix_auto_apply;	1481	$self->fix_auto_apply;
1174	$self->decay_objects;
1175	$self->update_buttons;	1482	$self->update_buttons;
		1483	Coro::cede;
1176	$self->set_darkness_map;	1484	$self->set_darkness_map;
1177	$self->difficulty ($self->estimate_difficulty)	1485	$self->difficulty ($self->estimate_difficulty)
1178	unless $self->difficulty;	1486	unless $self->difficulty;
		1487	Coro::cede;
1179	$self->activate;	1488	$self->activate;
1180	}	1489	}
1181		1490
		1491	$self->post_load;
		1492
1182	$self->in_memory (cf::MAP_IN_MEMORY);	1493	$self->in_memory (cf::MAP_IN_MEMORY);
1183	}	1494	}
1184		1495
1185	sub load_map_sync {	1496	sub customise_for {
		1497	my ($self, $ob) = @_;
		1498
		1499	return find "~" . $ob->name . "/" . $self->{path}
		1500	if $self->per_player;
		1501
		1502	$self
		1503	}
		1504
		1505	# find and load all maps in the 3x3 area around a map
		1506	sub load_diag {
		1507	my ($map) = @_;
		1508
		1509	my @diag; # diagonal neighbours
		1510
		1511	for (0 .. 3) {
		1512	my $neigh = $map->tile_path ($_)
		1513	or next;
		1514	$neigh = find $neigh, $map
		1515	or next;
		1516	$neigh->load;
		1517
		1518	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1519	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1520	}
		1521
		1522	for (@diag) {
		1523	my $neigh = find @$_
		1524	or next;
		1525	$neigh->load;
		1526	}
		1527	}
		1528
		1529	sub find_sync {
1186	my ($path, $origin) = @_;	1530	my ($path, $origin) = @_;
1187		1531
1188	#warn "load_map_sync<$path, $origin>\n";#d#	1532	cf::sync_job { find $path, $origin }
		1533	}
1189		1534
1190	cf::sync_job {	1535	sub do_load_sync {
1191	my $map = cf::map::find_map $path, $origin	1536	my ($map) = @_;
1192	or return;	1537
		1538	cf::sync_job { $map->load };
		1539	}
		1540
		1541	our %MAP_PREFETCH;
		1542	our $MAP_PREFETCHER = undef;
		1543
		1544	sub find_async {
		1545	my ($path, $origin) = @_;
		1546
		1547	$path = normalise $path, $origin && $origin->{path};
		1548
		1549	if (my $map = $cf::MAP{$path}) {
		1550	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1551	}
		1552
		1553	undef $MAP_PREFETCH{$path};
		1554	$MAP_PREFETCHER ||= cf::async {
		1555	while (%MAP_PREFETCH) {
		1556	for my $path (keys %MAP_PREFETCH) {
		1557	my $map = find $path
		1558	or next;
1193	$map->load;	1559	$map->load;
1194	$map	1560
		1561	delete $MAP_PREFETCH{$path};
		1562	}
		1563	}
		1564	undef $MAP_PREFETCHER;
1195	}	1565	};
		1566	$MAP_PREFETCHER->prio (6);
		1567
		1568	()
1196	}	1569	}
1197		1570
1198	sub save {	1571	sub save {
1199	my ($self) = @_;	1572	my ($self) = @_;
1200		1573
1201	my $save = $self->{path}->save_path; utf8::encode $save;	1574	my $lock = cf::lock_acquire "map_data:" . $self->path;
1202	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203		1575
1204	$self->{last_save} = $cf::RUNTIME;	1576	$self->{last_save} = $cf::RUNTIME;
1205		1577
1206	return unless $self->dirty;	1578	return unless $self->dirty;
1207		1579
		1580	my $save = $self->save_path; utf8::encode $save;
		1581	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1582
1208	$self->{load_path} = $save;	1583	$self->{load_path} = $save;
1209		1584
1210	return if $self->{deny_save};	1585	return if $self->{deny_save};
1211		1586
1212	warn "saving map ", $self->path;	1587	local $self->{last_access} = $self->last_access;#d#
		1588
		1589	cf::async {
		1590	$_->contr->save for $self->players;
		1591	};
1213		1592
1214	if ($uniq) {	1593	if ($uniq) {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1594	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216	$self->save_objects ($uniq, cf::IO_UNIQUES);	1595	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1217	} else {	1596	} else {
1218	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1597	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219	}	1598	}
1220	}	1599	}
1221		1600
1222	sub swap_out {	1601	sub swap_out {
1223	my ($self) = @_;	1602	my ($self) = @_;
		1603
		1604	# save first because save cedes
		1605	$self->save;
		1606
		1607	my $lock = cf::lock_acquire "map_data:" . $self->path;
1224		1608
1225	return if $self->players;	1609	return if $self->players;
1226	return if $self->in_memory != cf::MAP_IN_MEMORY;	1610	return if $self->in_memory != cf::MAP_IN_MEMORY;
1227	return if $self->{deny_save};	1611	return if $self->{deny_save};
1228		1612
1229	$self->save;
1230	$self->clear;	1613	$self->clear;
1231	$self->in_memory (cf::MAP_SWAPPED);	1614	$self->in_memory (cf::MAP_SWAPPED);
1232	}	1615	}
1233		1616
		1617	sub reset_at {
		1618	my ($self) = @_;
		1619
		1620	# TODO: safety, remove and allow resettable per-player maps
		1621	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1622	return 1e99 if $self->{deny_reset};
		1623
		1624	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1625	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1626
		1627	$time + $to
		1628	}
		1629
1234	sub should_reset {	1630	sub should_reset {
1235	my ($map) = @_;
1236
1237	# TODO: safety, remove and allow resettable per-player maps
1238	return if $map->{path}{user_rel};#d#
1239	return if $map->{deny_reset};
1240	#return unless $map->reset_timeout;
1241
1242	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243	my $to = $map->reset_timeout || $DEFAULT_RESET;
1244	$to = $MAX_RESET if $to > $MAX_RESET;
1245
1246	$time + $to < $cf::RUNTIME
1247	}
1248
1249	sub unlink_save {
1250	my ($self) = @_;	1631	my ($self) = @_;
1251		1632
1252	utf8::encode (my $save = $self->{path}->save_path);	1633	$self->reset_at <= $cf::RUNTIME
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255	}	1634	}
1256		1635
1257	sub reset {	1636	sub reset {
1258	my ($self) = @_;	1637	my ($self) = @_;
1259		1638
		1639	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1640
1260	return if $self->players;	1641	return if $self->players;
1261	return if $self->{path}{user_rel};#d#	1642	return if $self->isa ("ext::map_per_player");#d#
1262		1643
1263	warn "resetting map ", $self->path;#d#	1644	warn "resetting map ", $self->path;#d#
1264		1645
		1646	$self->in_memory (cf::MAP_SWAPPED);
		1647
		1648	# need to save uniques path
		1649	unless ($self->{deny_save}) {
		1650	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1651
		1652	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1653	if $uniq;
		1654	}
		1655
1265	delete $cf::MAP{$self->path};	1656	delete $cf::MAP{$self->path};
		1657
		1658	$self->clear;
1266		1659
1267	$_->clear_links_to ($self) for values %cf::MAP;	1660	$_->clear_links_to ($self) for values %cf::MAP;
1268		1661
1269	$self->unlink_save;	1662	$self->unlink_save;
1270	$self->destroy;	1663	$self->destroy;
1271	}	1664	}
1272		1665
1273	sub customise_for {	1666	my $nuke_counter = "aaaa";
1274	my ($map, $ob) = @_;
1275		1667
1276	if ($map->per_player) {	1668	sub nuke {
1277	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1669	my ($self) = @_;
1278	}
1279		1670
1280	$map	1671	delete $cf::MAP{$self->path};
1281	}
1282		1672
1283	sub emergency_save {	1673	$self->unlink_save;
1284	local $cf::FREEZE = 1;
1285		1674
1286	warn "enter emergency map save\n";	1675	bless $self, "cf::map";
		1676	delete $self->{deny_reset};
		1677	$self->{deny_save} = 1;
		1678	$self->reset_timeout (1);
		1679	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1287		1680
1288	cf::sync_job {	1681	$cf::MAP{$self->path} = $self;
1289	warn "begin emergency map save\n";	1682
1290	$_->save for values %cf::MAP;	1683	$self->reset; # polite request, might not happen
		1684	}
		1685
		1686	=item cf::map::unique_maps
		1687
		1688	Returns an arrayref of paths of all shared maps that have
		1689	instantiated unique items. May block.
		1690
		1691	=cut
		1692
		1693	sub unique_maps() {
		1694	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1695	or return;
		1696
		1697	my @paths;
		1698
		1699	for (@$files) {
		1700	utf8::decode $_;
		1701	next if /\.pst$/;
		1702	next unless /^$PATH_SEP/o;
		1703
		1704	push @paths, cf::map::normalise $_;
1291	};	1705	}
1292		1706
1293	warn "end emergency map save\n";	1707	\@paths
1294	}	1708	}
1295		1709
1296	package cf;	1710	package cf;
1297		1711
1298	=back	1712	=back
1299		1713
		1714	=head3 cf::object
		1715
		1716	=cut
		1717
		1718	package cf::object;
		1719
		1720	=over 4
		1721
		1722	=item $ob->inv_recursive
		1723
		1724	Returns the inventory of the object _and_ their inventories, recursively.
		1725
		1726	=cut
		1727
		1728	sub inv_recursive_;
		1729	sub inv_recursive_ {
		1730	map { $_, inv_recursive_ $_->inv } @_
		1731	}
		1732
		1733	sub inv_recursive {
		1734	inv_recursive_ inv $_[0]
		1735	}
		1736
		1737	package cf;
		1738
		1739	=back
1300		1740
1301	=head3 cf::object::player	1741	=head3 cf::object::player
1302		1742
1303	=over 4	1743	=over 4
1304		1744
…		…
1340	(ref $cf::CFG{"may_$access"}	1780	(ref $cf::CFG{"may_$access"}
1341	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1781	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342	: $cf::CFG{"may_$access"})	1782	: $cf::CFG{"may_$access"})
1343	}	1783	}
1344		1784
		1785	=item $player_object->enter_link
		1786
		1787	Freezes the player and moves him/her to a special map (C<{link}>).
		1788
		1789	The player should be reasonably safe there for short amounts of time. You
		1790	I<MUST> call C<leave_link> as soon as possible, though.
		1791
		1792	Will never block.
		1793
		1794	=item $player_object->leave_link ($map, $x, $y)
		1795
		1796	Moves the player out of the special C<{link}> map onto the specified
		1797	map. If the map is not valid (or omitted), the player will be moved back
		1798	to the location he/she was before the call to C<enter_link>, or, if that
		1799	fails, to the emergency map position.
		1800
		1801	Might block.
		1802
		1803	=cut
		1804
		1805	sub link_map {
		1806	unless ($LINK_MAP) {
		1807	$LINK_MAP = cf::map::find "{link}"
		1808	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1809	$LINK_MAP->load;
		1810	}
		1811
		1812	$LINK_MAP
		1813	}
		1814
1345	sub cf::object::player::enter_link {	1815	sub cf::object::player::enter_link {
1346	my ($self) = @_;	1816	my ($self) = @_;
1347		1817
1348	return if $self->map == $LINK_MAP;	1818	$self->deactivate_recursive;
1349		1819
		1820	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1821
1350	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1822	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1351	if $self->map;	1823	if $self->map;
1352		1824
1353	$self->enter_map ($LINK_MAP, 20, 20);	1825	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1354	$self->deactivate_recursive;
1355	}	1826	}
1356		1827
1357	sub cf::object::player::leave_link {	1828	sub cf::object::player::leave_link {
1358	my ($self, $map, $x, $y) = @_;	1829	my ($self, $map, $x, $y) = @_;
1359		1830
1360	my $link_pos = delete $self->{_link_pos};	1831	my $link_pos = delete $self->{_link_pos};
1361		1832
1362	unless ($map) {	1833	unless ($map) {
1363	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365	# restore original map position	1834	# restore original map position
1366	($map, $x, $y) = @{ $link_pos || [] };	1835	($map, $x, $y) = @{ $link_pos || [] };
1367	$map = cf::map::find_map $map;	1836	$map = cf::map::find $map;
1368		1837
1369	unless ($map) {	1838	unless ($map) {
1370	($map, $x, $y) = @$EMERGENCY_POSITION;	1839	($map, $x, $y) = @$EMERGENCY_POSITION;
1371	$map = cf::map::find_map $map	1840	$map = cf::map::find $map
1372	or die "FATAL: cannot load emergency map\n";	1841	or die "FATAL: cannot load emergency map\n";
1373	}	1842	}
1374	}	1843	}
1375		1844
1376	($x, $y) = (-1, -1)	1845	($x, $y) = (-1, -1)
…		…
1379	# use -1 or undef as default coordinates, not 0, 0	1848	# use -1 or undef as default coordinates, not 0, 0
1380	($x, $y) = ($map->enter_x, $map->enter_y)	1849	($x, $y) = ($map->enter_x, $map->enter_y)
1381	if $x <=0 && $y <= 0;	1850	if $x <=0 && $y <= 0;
1382		1851
1383	$map->load;	1852	$map->load;
		1853	$map->load_diag;
1384		1854
		1855	return unless $self->contr->active;
1385	$self->activate_recursive;	1856	$self->activate_recursive;
		1857
		1858	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1386	$self->enter_map ($map, $x, $y);	1859	$self->enter_map ($map, $x, $y);
1387	}	1860	}
1388		1861
		1862	cf::player->attach (
		1863	on_logout => sub {
		1864	my ($pl) = @_;
		1865
		1866	# abort map switching before logout
		1867	if ($pl->ob->{_link_pos}) {
		1868	cf::sync_job {
		1869	$pl->ob->leave_link
		1870	};
		1871	}
		1872	},
		1873	on_login => sub {
		1874	my ($pl) = @_;
		1875
		1876	# try to abort aborted map switching on player login :)
		1877	# should happen only on crashes
		1878	if ($pl->ob->{_link_pos}) {
		1879	$pl->ob->enter_link;
		1880	(async {
		1881	$pl->ob->reply (undef,
		1882	"There was an internal problem at your last logout, "
		1883	. "the server will try to bring you to your intended destination in a second.",
		1884	cf::NDI_RED);
		1885	# we need this sleep as the login has a concurrent enter_exit running
		1886	# and this sleep increases chances of the player not ending up in scorn
		1887	Coro::Timer::sleep 1;
		1888	$pl->ob->leave_link;
		1889	})->prio (2);
		1890	}
		1891	},
		1892	);
		1893
1389	=item $player_object->goto_map ($map, $x, $y)	1894	=item $player_object->goto ($path, $x, $y)
1390		1895
1391	=cut	1896	=cut
1392		1897
1393	sub cf::object::player::goto_map {	1898	sub cf::object::player::goto {
1394	my ($self, $path, $x, $y) = @_;	1899	my ($self, $path, $x, $y) = @_;
1395		1900
1396	$self->enter_link;	1901	$self->enter_link;
1397		1902
1398	(Coro::async {	1903	(async {
1399	$path = new cf::path $path;	1904	my $map = eval {
1400
1401	my $map = cf::map::find_map $path->as_string;	1905	my $map = cf::map::find $path;
1402	$map = $map->customise_for ($self) if $map;	1906	$map = $map->customise_for ($self) if $map;
1403
1404	warn "entering ", $map->path, " at ($x, $y)\n"
1405	if $map;	1907	$map
		1908	} or
		1909	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1406		1910
1407	$self->leave_link ($map, $x, $y);	1911	$self->leave_link ($map, $x, $y);
1408	})->prio (1);	1912	})->prio (1);
1409	}	1913	}
1410		1914
…		…
1414		1918
1415	sub parse_random_map_params {	1919	sub parse_random_map_params {
1416	my ($spec) = @_;	1920	my ($spec) = @_;
1417		1921
1418	my $rmp = { # defaults	1922	my $rmp = { # defaults
1419	xsize => 10,	1923	xsize => (cf::rndm 15, 40),
1420	ysize => 10,	1924	ysize => (cf::rndm 15, 40),
		1925	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1926	#layout => string,
1421	};	1927	};
1422		1928
1423	for (split /\n/, $spec) {	1929	for (split /\n/, $spec) {
1424	my ($k, $v) = split /\s+/, $_, 2;	1930	my ($k, $v) = split /\s+/, $_, 2;
1425		1931
…		…
1429	$rmp	1935	$rmp
1430	}	1936	}
1431		1937
1432	sub prepare_random_map {	1938	sub prepare_random_map {
1433	my ($exit) = @_;	1939	my ($exit) = @_;
		1940
		1941	my $guard = cf::lock_acquire "exit_prepare:$exit";
1434		1942
1435	# all this does is basically replace the /! path by	1943	# all this does is basically replace the /! path by
1436	# a new random map path (?random/...) with a seed	1944	# a new random map path (?random/...) with a seed
1437	# that depends on the exit object	1945	# that depends on the exit object
1438		1946
1439	my $rmp = parse_random_map_params $exit->msg;	1947	my $rmp = parse_random_map_params $exit->msg;
1440		1948
1441	if ($exit->map) {	1949	if ($exit->map) {
1442	$rmp->{region} = $exit->map->region_name;	1950	$rmp->{region} = $exit->region->name;
1443	$rmp->{origin_map} = $exit->map->path;	1951	$rmp->{origin_map} = $exit->map->path;
1444	$rmp->{origin_x} = $exit->x;	1952	$rmp->{origin_x} = $exit->x;
1445	$rmp->{origin_y} = $exit->y;	1953	$rmp->{origin_y} = $exit->y;
1446	}	1954	}
1447		1955
1448	$rmp->{random_seed} ||= $exit->random_seed;	1956	$rmp->{random_seed} ||= $exit->random_seed;
1449		1957
1450	my $data = cf::to_json $rmp;	1958	my $data = cf::to_json $rmp;
1451	my $md5 = Digest::MD5::md5_hex $data;	1959	my $md5 = Digest::MD5::md5_hex $data;
		1960	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1452		1961
1453	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1962	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1454	aio_write $fh, 0, (length $data), $data, 0;	1963	aio_write $fh, 0, (length $data), $data, 0;
		1964	undef $fh;
		1965	aio_rename "$meta~", $meta;
1455		1966
1456	$exit->slaying ("?random/$md5");	1967	$exit->slaying ("?random/$md5");
1457	$exit->msg (undef);	1968	$exit->msg (undef);
1458	}	1969	}
1459	}	1970	}
…		…
1461	sub cf::object::player::enter_exit {	1972	sub cf::object::player::enter_exit {
1462	my ($self, $exit) = @_;	1973	my ($self, $exit) = @_;
1463		1974
1464	return unless $self->type == cf::PLAYER;	1975	return unless $self->type == cf::PLAYER;
1465		1976
		1977	if ($exit->slaying eq "/!") {
		1978	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1979	# the problem is that $exit might not survive long enough
		1980	# so it needs to be done right now, right here
		1981	cf::sync_job { prepare_random_map $exit };
		1982	}
		1983
		1984	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1985	my $hp = $exit->stats->hp;
		1986	my $sp = $exit->stats->sp;
		1987
1466	$self->enter_link;	1988	$self->enter_link;
1467		1989
1468	(Coro::async {	1990	(async {
		1991	$self->deactivate_recursive; # just to be sure
1469	unless (eval {	1992	unless (eval {
1470		1993	$self->goto ($slaying, $hp, $sp);
1471	prepare_random_map $exit
1472	if $exit->slaying eq "/!";
1473
1474	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1475	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1476		1994
1477	1;	1995	1;
1478	}) {	1996	}) {
1479	$self->message ("Something went wrong deep within the crossfire server. "	1997	$self->message ("Something went wrong deep within the crossfire server. "
1480	. "I'll try to bring you back to the map you were before. "	1998	. "I'll try to bring you back to the map you were before. "
1481	. "Please report this to the dungeon master",	1999	. "Please report this to the dungeon master!",
1482	cf::NDI_UNIQUE | cf::NDI_RED);	2000	cf::NDI_UNIQUE | cf::NDI_RED);
1483		2001
1484	warn "ERROR in enter_exit: $@";	2002	warn "ERROR in enter_exit: $@";
1485	$self->leave_link;	2003	$self->leave_link;
1486	}	2004	}
1487	})->prio (1);	2005	})->prio (1);
…		…
1500		2018
1501	sub cf::client::send_drawinfo {	2019	sub cf::client::send_drawinfo {
1502	my ($self, $text, $flags) = @_;	2020	my ($self, $text, $flags) = @_;
1503		2021
1504	utf8::encode $text;	2022	utf8::encode $text;
1505	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2023	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1506	}	2024	}
1507		2025
		2026	=item $client->ext_event ($type, %msg)
		2027
		2028	Sends an exti event to the client.
		2029
		2030	=cut
		2031
		2032	sub cf::client::ext_event($$%) {
		2033	my ($self, $type, %msg) = @_;
		2034
		2035	$msg{msgtype} = "event_$type";
		2036	$self->send_packet ("ext " . cf::to_json \%msg);
		2037	}
1508		2038
1509	=item $success = $client->query ($flags, "text", \&cb)	2039	=item $success = $client->query ($flags, "text", \&cb)
1510		2040
1511	Queues a query to the client, calling the given callback with	2041	Queues a query to the client, calling the given callback with
1512	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2042	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1537	on_reply => sub {	2067	on_reply => sub {
1538	my ($ns, $msg) = @_;	2068	my ($ns, $msg) = @_;
1539		2069
1540	# this weird shuffling is so that direct followup queries	2070	# this weird shuffling is so that direct followup queries
1541	# get handled first	2071	# get handled first
1542	my $queue = delete $ns->{query_queue};	2072	my $queue = delete $ns->{query_queue}
		2073	or return; # be conservative, not sure how that can happen, but we saw a crash here
1543		2074
1544	(shift @$queue)->[1]->($msg);	2075	(shift @$queue)->[1]->($msg);
		2076	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1545		2077
1546	push @{ $ns->{query_queue} }, @$queue;	2078	push @{ $ns->{query_queue} }, @$queue;
1547		2079
1548	if (@{ $ns->{query_queue} } == @$queue) {	2080	if (@{ $ns->{query_queue} } == @$queue) {
1549	if (@$queue) {	2081	if (@$queue) {
…		…
1553	}	2085	}
1554	}	2086	}
1555	},	2087	},
1556	);	2088	);
1557		2089
1558	=item $client->coro (\&cb)	2090	=item $client->async (\&cb)
1559		2091
1560	Create a new coroutine, running the specified callback. The coroutine will	2092	Create a new coroutine, running the specified callback. The coroutine will
1561	be automatically cancelled when the client gets destroyed (e.g. on logout,	2093	be automatically cancelled when the client gets destroyed (e.g. on logout,
1562	or loss of connection).	2094	or loss of connection).
1563		2095
1564	=cut	2096	=cut
1565		2097
1566	sub cf::client::coro {	2098	sub cf::client::async {
1567	my ($self, $cb) = @_;	2099	my ($self, $cb) = @_;
1568		2100
1569	my $coro; $coro = async {	2101	my $coro = &Coro::async ($cb);
1570	eval {
1571	$cb->();
1572	};
1573	warn $@ if $@;
1574	};
1575		2102
1576	$coro->on_destroy (sub {	2103	$coro->on_destroy (sub {
1577	delete $self->{_coro}{$coro+0};	2104	delete $self->{_coro}{$coro+0};
1578	});	2105	});
1579		2106
…		…
1612		2139
1613	# here we export the classes and methods available to script code	2140	# here we export the classes and methods available to script code
1614		2141
1615	=pod	2142	=pod
1616		2143
1617	The following fucntions and emthods are available within a safe environment:	2144	The following functions and methods are available within a safe environment:
1618		2145
1619	cf::object contr pay_amount pay_player map	2146	cf::object contr pay_amount pay_player map
1620	cf::object::player player	2147	cf::object::player player
1621	cf::player peaceful	2148	cf::player peaceful
1622	cf::map trigger	2149	cf::map trigger
…		…
1715	The parameter C<$family> should best start with the name of the extension	2242	The parameter C<$family> should best start with the name of the extension
1716	using it, it should be unique.	2243	using it, it should be unique.
1717		2244
1718	=over 4	2245	=over 4
1719		2246
1720	=item $hashref = cf::db_get $family
1721
1722	Return a hashref for use by the extension C<$family>, which can be
1723	modified. After modifications, you have to call C<cf::db_dirty> or
1724	C<cf::db_sync>.
1725
1726	=item $value = cf::db_get $family => $key	2247	=item $value = cf::db_get $family => $key
1727		2248
1728	Returns a single value from the database	2249	Returns a single value from the database.
1729
1730	=item cf::db_put $family => $hashref
1731
1732	Stores the given family hashref into the database. Updates are delayed, if
1733	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1734		2250
1735	=item cf::db_put $family => $key => $value	2251	=item cf::db_put $family => $key => $value
1736		2252
1737	Stores the given C<$value> in the family hash. Updates are delayed, if you	2253	Stores the given C<$value> in the family.
1738	want the data to be synced to disk immediately, use C<cf::db_sync>.
1739
1740	=item cf::db_dirty
1741
1742	Marks the database as dirty, to be updated at a later time.
1743
1744	=item cf::db_sync
1745
1746	Immediately write the database to disk I<if it is dirty>.
1747		2254
1748	=cut	2255	=cut
1749		2256
1750	our $DB;	2257	our $DB;
1751		2258
1752	{	2259	sub db_init {
		2260	unless ($DB) {
		2261	$DB = BDB::db_create $DB_ENV;
		2262
		2263	cf::sync_job {
		2264	eval {
		2265	$DB->set_flags (BDB::CHKSUM);
		2266
		2267	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2268	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2269	cf::cleanup "db_open(db): $!" if $!;
		2270	};
		2271	cf::cleanup "db_open(db): $@" if $@;
		2272	};
		2273
1753	my $path = cf::localdir . "/database.pst";	2274	my $path = cf::localdir . "/database.pst";
		2275	if (stat $path) {
		2276	cf::sync_job {
		2277	my $pst = Storable::retrieve $path;
1754		2278
1755	sub db_load() {	2279	cf::db_put (board => data => $pst->{board});
1756	warn "loading database $path\n";#d# remove later	2280	cf::db_put (guildrules => data => $pst->{guildrules});
1757	$DB = stat $path ? Storable::retrieve $path : { };	2281	cf::db_put (rent => balance => $pst->{rent}{balance});
1758	}	2282	BDB::db_env_txn_checkpoint $DB_ENV;
1759		2283
1760	my $pid;	2284	unlink $path;
1761
1762	sub db_save() {
1763	warn "saving database $path\n";#d# remove later
1764	waitpid $pid, 0 if $pid;
1765	if (0 == ($pid = fork)) {
1766	$DB->{_meta}{version} = 1;
1767	Storable::nstore $DB, "$path~";
1768	rename "$path~", $path;
1769	cf::_exit 0 if defined $pid;
1770	}	2285	};
1771	}
1772
1773	my $dirty;
1774
1775	sub db_sync() {
1776	db_save if $dirty;
1777	undef $dirty;
1778	}
1779
1780	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1781	db_sync;
1782	});
1783
1784	sub db_dirty() {
1785	$dirty = 1;
1786	$idle->start;
1787	}
1788
1789	sub db_get($;$) {
1790	@_ >= 2
1791	? $DB->{$_[0]}{$_[1]}
1792	: ($DB->{$_[0]} ||= { })
1793	}
1794
1795	sub db_put($$;$) {
1796	if (@_ >= 3) {
1797	$DB->{$_[0]}{$_[1]} = $_[2];
1798	} else {
1799	$DB->{$_[0]} = $_[1];
1800	}
1801	db_dirty;
1802	}
1803
1804	cf::global->attach (
1805	prio => 10000,
1806	on_cleanup => sub {
1807	db_sync;
1808	},	2286	}
1809	);	2287	}
		2288	}
		2289
		2290	sub db_get($$) {
		2291	my $key = "$_[0]/$_[1]";
		2292
		2293	cf::sync_job {
		2294	BDB::db_get $DB, undef, $key, my $data;
		2295
		2296	$! ? ()
		2297	: Compress::LZF::sthaw $data
		2298	}
		2299	}
		2300
		2301	sub db_put($$$) {
		2302	BDB::dbreq_pri 4;
		2303	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1810	}	2304	}
1811		2305
1812	#############################################################################	2306	#############################################################################
1813	# the server's main()	2307	# the server's init and main functions
		2308
		2309	sub load_facedata {
		2310	my $path = sprintf "%s/facedata", cf::datadir;
		2311
		2312	warn "loading facedata from $path\n";
		2313
		2314	my $facedata;
		2315	0 < aio_load $path, $facedata
		2316	or die "$path: $!";
		2317
		2318	$facedata = Coro::Storable::thaw $facedata;
		2319
		2320	$facedata->{version} == 2
		2321	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2322
		2323	{
		2324	my $faces = $facedata->{faceinfo};
		2325
		2326	while (my ($face, $info) = each %$faces) {
		2327	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2328	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2329	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2330	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2331	Coro::cede;
		2332	}
		2333
		2334	while (my ($face, $info) = each %$faces) {
		2335	next unless $info->{smooth};
		2336	my $idx = cf::face::find $face
		2337	or next;
		2338	if (my $smooth = cf::face::find $info->{smooth}) {
		2339	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2340	} else {
		2341	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2342	}
		2343	Coro::cede;
		2344	}
		2345	}
		2346
		2347	{
		2348	my $anims = $facedata->{animinfo};
		2349
		2350	while (my ($anim, $info) = each %$anims) {
		2351	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2352	Coro::cede;
		2353	}
		2354
		2355	cf::anim::invalidate_all; # d'oh
		2356	}
		2357
		2358	1
		2359	}
		2360
		2361	sub reload_resources {
		2362	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2363	or die "unable to load regions file\n";#d#
		2364	load_facedata
		2365	or die "unable to load facedata\n";#d#
		2366	}
		2367
		2368	sub init {
		2369	reload_resources;
		2370	}
1814		2371
1815	sub cfg_load {	2372	sub cfg_load {
1816	open my $fh, "<:utf8", cf::confdir . "/config"	2373	open my $fh, "<:utf8", cf::confdir . "/config"
1817	or return;	2374	or return;
1818		2375
1819	local $/;	2376	local $/;
1820	*CFG = YAML::Syck::Load <$fh>;	2377	*CFG = YAML::Syck::Load <$fh>;
		2378
		2379	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2380
		2381	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2382	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2383
		2384	if (exists $CFG{mlockall}) {
		2385	eval {
		2386	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2387	and die "WARNING: m(un)lockall failed: $!\n";
		2388	};
		2389	warn $@ if $@;
		2390	}
1821	}	2391	}
1822		2392
1823	sub main {	2393	sub main {
1824	# we must not ever block the main coroutine	2394	# we must not ever block the main coroutine
1825	local $Coro::idle = sub {	2395	local $Coro::idle = sub {
1826	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2396	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827	(Coro::unblock_sub {	2397	(async {
1828	Event::one_event;	2398	Event::one_event;
1829	})->();	2399	})->prio (Coro::PRIO_MAX);
1830	};	2400	};
1831		2401
1832	cfg_load;	2402	cfg_load;
1833	db_load;	2403	db_init;
1834	load_extensions;	2404	load_extensions;
		2405
		2406	$TICK_WATCHER->start;
1835	Event::loop;	2407	Event::loop;
1836	}	2408	}
1837		2409
1838	#############################################################################	2410	#############################################################################
1839	# initialisation	2411	# initialisation and cleanup
		2412
		2413	# install some emergency cleanup handlers
		2414	BEGIN {
		2415	for my $signal (qw(INT HUP TERM)) {
		2416	Event->signal (
		2417	reentrant => 0,
		2418	data => WF_AUTOCANCEL,
		2419	signal => $signal,
		2420	prio => 0,
		2421	cb => sub {
		2422	cf::cleanup "SIG$signal";
		2423	},
		2424	);
		2425	}
		2426	}
		2427
		2428	sub emergency_save() {
		2429	my $freeze_guard = cf::freeze_mainloop;
		2430
		2431	warn "enter emergency perl save\n";
		2432
		2433	cf::sync_job {
		2434	# use a peculiar iteration method to avoid tripping on perl
		2435	# refcount bugs in for. also avoids problems with players
		2436	# and maps saved/destroyed asynchronously.
		2437	warn "begin emergency player save\n";
		2438	for my $login (keys %cf::PLAYER) {
		2439	my $pl = $cf::PLAYER{$login} or next;
		2440	$pl->valid or next;
		2441	$pl->save;
		2442	}
		2443	warn "end emergency player save\n";
		2444
		2445	warn "begin emergency map save\n";
		2446	for my $path (keys %cf::MAP) {
		2447	my $map = $cf::MAP{$path} or next;
		2448	$map->valid or next;
		2449	$map->save;
		2450	}
		2451	warn "end emergency map save\n";
		2452
		2453	warn "begin emergency database checkpoint\n";
		2454	BDB::db_env_txn_checkpoint $DB_ENV;
		2455	warn "end emergency database checkpoint\n";
		2456	};
		2457
		2458	warn "leave emergency perl save\n";
		2459	}
		2460
		2461	sub post_cleanup {
		2462	my ($make_core) = @_;
		2463
		2464	warn Carp::longmess "post_cleanup backtrace"
		2465	if $make_core;
		2466	}
1840		2467
1841	sub reload() {	2468	sub reload() {
1842	# can/must only be called in main	2469	# can/must only be called in main
1843	if ($Coro::current != $Coro::main) {	2470	if ($Coro::current != $Coro::main) {
1844	warn "can only reload from main coroutine\n";	2471	warn "can only reload from main coroutine";
1845	return;	2472	return;
1846	}	2473	}
1847		2474
1848	warn "reloading...";	2475	warn "reloading...";
1849		2476
1850	local $FREEZE = 1;	2477	warn "entering sync_job";
		2478
		2479	cf::sync_job {
		2480	cf::write_runtime; # external watchdog should not bark
1851	cf::emergency_save;	2481	cf::emergency_save;
		2482	cf::write_runtime; # external watchdog should not bark
1852		2483
1853	eval {	2484	warn "syncing database to disk";
		2485	BDB::db_env_txn_checkpoint $DB_ENV;
		2486
1854	# if anything goes wrong in here, we should simply crash as we already saved	2487	# if anything goes wrong in here, we should simply crash as we already saved
1855		2488
1856	# cancel all watchers	2489	warn "cancelling all WF_AUTOCANCEL watchers";
1857	for (Event::all_watchers) {	2490	for (Event::all_watchers) {
1858	$_->cancel if $_->data & WF_AUTOCANCEL;	2491	$_->cancel if $_->data & WF_AUTOCANCEL;
1859	}	2492	}
1860		2493
		2494	warn "flushing outstanding aio requests";
		2495	for (;;) {
		2496	BDB::flush;
		2497	IO::AIO::flush;
		2498	Coro::cede;
		2499	last unless IO::AIO::nreqs || BDB::nreqs;
		2500	warn "iterate...";
		2501	}
		2502
		2503	++$RELOAD;
		2504
1861	# cancel all extension coros	2505	warn "cancelling all extension coros";
1862	$_->cancel for values %EXT_CORO;	2506	$_->cancel for values %EXT_CORO;
1863	%EXT_CORO = ();	2507	%EXT_CORO = ();
1864		2508
1865	# unload all extensions	2509	warn "removing commands";
1866	for (@exts) {	2510	%COMMAND = ();
		2511
		2512	warn "removing ext commands";
		2513	%EXTCMD = ();
		2514
		2515	warn "unloading/nuking all extensions";
		2516	for my $pkg (@EXTS) {
1867	warn "unloading <$_>";	2517	warn "... unloading $pkg";
1868	unload_extension $_;	2518
		2519	if (my $cb = $pkg->can ("unload")) {
		2520	eval {
		2521	$cb->($pkg);
		2522	1
		2523	} or warn "$pkg unloaded, but with errors: $@";
1869	}	2524	}
1870		2525
		2526	warn "... nuking $pkg";
		2527	Symbol::delete_package $pkg;
		2528	}
		2529
1871	# unload all modules loaded from $LIBDIR	2530	warn "unloading all perl modules loaded from $LIBDIR";
1872	while (my ($k, $v) = each %INC) {	2531	while (my ($k, $v) = each %INC) {
1873	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2532	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1874		2533
1875	warn "removing <$k>";	2534	warn "... unloading $k";
1876	delete $INC{$k};	2535	delete $INC{$k};
1877		2536
1878	$k =~ s/\.pm$//;	2537	$k =~ s/\.pm$//;
1879	$k =~ s/\//::/g;	2538	$k =~ s/\//::/g;
1880		2539
…		…
1883	}	2542	}
1884		2543
1885	Symbol::delete_package $k;	2544	Symbol::delete_package $k;
1886	}	2545	}
1887		2546
1888	# sync database to disk
1889	cf::db_sync;
1890	IO::AIO::flush;
1891
1892	# get rid of safe::, as good as possible	2547	warn "getting rid of safe::, as good as possible";
1893	Symbol::delete_package "safe::$_"	2548	Symbol::delete_package "safe::$_"
1894	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2549	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1895		2550
1896	# remove register_script_function callbacks
1897	# TODO
1898
1899	# unload cf.pm "a bit"	2551	warn "unloading cf.pm \"a bit\"";
1900	delete $INC{"cf.pm"};	2552	delete $INC{"cf.pm"};
1901		2553
1902	# don't, removes xs symbols, too,	2554	# don't, removes xs symbols, too,
1903	# and global variables created in xs	2555	# and global variables created in xs
1904	#Symbol::delete_package __PACKAGE__;	2556	#Symbol::delete_package __PACKAGE__;
1905		2557
1906	# reload cf.pm	2558	warn "unload completed, starting to reload now";
		2559
1907	warn "reloading cf.pm";	2560	warn "reloading cf.pm";
1908	require cf;	2561	require cf;
1909	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2562	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1910		2563
1911	# load config and database again	2564	warn "loading config and database again";
1912	cf::cfg_load;	2565	cf::cfg_load;
1913	cf::db_load;
1914		2566
1915	# load extensions
1916	warn "load extensions";	2567	warn "loading extensions";
1917	cf::load_extensions;	2568	cf::load_extensions;
1918		2569
1919	# reattach attachments to objects	2570	warn "reattaching attachments to objects/players";
1920	warn "reattach";	2571	_global_reattach; # objects, sockets
1921	_global_reattach;	2572	warn "reattaching attachments to maps";
1922	};	2573	reattach $_ for values %MAP;
		2574	warn "reattaching attachments to players";
		2575	reattach $_ for values %PLAYER;
1923		2576
1924	if ($@) {	2577	warn "loading reloadable resources";
		2578	reload_resources;
		2579
		2580	warn "leaving sync_job";
		2581
		2582	1
		2583	} or do {
1925	warn $@;	2584	warn $@;
1926	warn "error while reloading, exiting.";	2585	warn "error while reloading, exiting.";
1927	exit 1;	2586	exit 1;
1928	}	2587	};
1929		2588
1930	warn "reloaded successfully";	2589	warn "reloaded";
1931	};	2590	};
1932		2591
1933	#############################################################################	2592	our $RELOAD_WATCHER; # used only during reload
1934
1935	unless ($LINK_MAP) {
1936	$LINK_MAP = cf::map::new;
1937
1938	$LINK_MAP->width (41);
1939	$LINK_MAP->height (41);
1940	$LINK_MAP->alloc;
1941	$LINK_MAP->path ("{link}");
1942	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1944
1945	# dirty hack because... archetypes are not yet loaded
1946	Event->timer (
1947	after => 2,
1948	cb => sub {
1949	$_[0]->w->cancel;
1950
1951	# provide some exits "home"
1952	my $exit = cf::object::new "exit";
1953
1954	$exit->slaying ($EMERGENCY_POSITION->[0]);
1955	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1956	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1957
1958	$LINK_MAP->insert ($exit->clone, 19, 19);
1959	$LINK_MAP->insert ($exit->clone, 19, 20);
1960	$LINK_MAP->insert ($exit->clone, 19, 21);
1961	$LINK_MAP->insert ($exit->clone, 20, 19);
1962	$LINK_MAP->insert ($exit->clone, 20, 21);
1963	$LINK_MAP->insert ($exit->clone, 21, 19);
1964	$LINK_MAP->insert ($exit->clone, 21, 20);
1965	$LINK_MAP->insert ($exit->clone, 21, 21);
1966
1967	$exit->destroy;
1968	});
1969
1970	$LINK_MAP->{deny_save} = 1;
1971	$LINK_MAP->{deny_reset} = 1;
1972
1973	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1974	}
1975
1976	register "<global>", __PACKAGE__;
1977		2593
1978	register_command "reload" => sub {	2594	register_command "reload" => sub {
1979	my ($who, $arg) = @_;	2595	my ($who, $arg) = @_;
1980		2596
1981	if ($who->flag (FLAG_WIZ)) {	2597	if ($who->flag (FLAG_WIZ)) {
1982	$who->message ("start of reload.");	2598	$who->message ("reloading server.");
		2599
		2600	# doing reload synchronously and two reloads happen back-to-back,
		2601	# coro crashes during coro_state_free->destroy here.
		2602
		2603	$RELOAD_WATCHER ||= Event->timer (
		2604	reentrant => 0,
		2605	after => 0,
		2606	data => WF_AUTOCANCEL,
		2607	cb => sub {
1983	reload;	2608	reload;
1984	$who->message ("end of reload.");	2609	undef $RELOAD_WATCHER;
		2610	},
		2611	);
1985	}	2612	}
1986	};	2613	};
1987		2614
1988	unshift @INC, $LIBDIR;	2615	unshift @INC, $LIBDIR;
		2616
		2617	my $bug_warning = 0;
1989		2618
1990	$TICK_WATCHER = Event->timer (	2619	$TICK_WATCHER = Event->timer (
1991	reentrant => 0,	2620	reentrant => 0,
		2621	parked => 1,
1992	prio => 0,	2622	prio => 0,
1993	at => $NEXT_TICK || $TICK,	2623	at => $NEXT_TICK || $TICK,
1994	data => WF_AUTOCANCEL,	2624	data => WF_AUTOCANCEL,
1995	cb => sub {	2625	cb => sub {
1996	unless ($FREEZE) {	2626	if ($Coro::current != $Coro::main) {
		2627	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2628	unless ++$bug_warning > 10;
		2629	return;
		2630	}
		2631
		2632	$NOW = Event::time;
		2633
1997	cf::server_tick; # one server iteration	2634	cf::server_tick; # one server iteration
1998	$RUNTIME += $TICK;	2635	$RUNTIME += $TICK;
1999	}
2000
2001	$NEXT_TICK += $TICK;	2636	$NEXT_TICK += $TICK;
		2637
		2638	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2639	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2640	Coro::async_pool {
		2641	write_runtime
		2642	or warn "ERROR: unable to write runtime file: $!";
		2643	};
		2644	}
		2645
		2646	$WAIT_FOR_TICK->broadcast;
		2647	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2648
		2649	# my $AFTER = Event::time;
		2650	# warn $AFTER - $NOW;#d#
2002		2651
2003	# if we are delayed by four ticks or more, skip them all	2652	# if we are delayed by four ticks or more, skip them all
2004	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2653	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2005		2654
2006	$TICK_WATCHER->at ($NEXT_TICK);	2655	$TICK_WATCHER->at ($NEXT_TICK);
2007	$TICK_WATCHER->start;	2656	$TICK_WATCHER->start;
2008	},	2657	},
2009	);	2658	);
2010		2659
		2660	{
2011	IO::AIO::max_poll_time $TICK * 0.2;	2661	BDB::max_poll_time $TICK * 0.1;
2012		2662	$BDB_POLL_WATCHER = Event->io (
2013	Event->io (	2663	reentrant => 0,
2014	fd => IO::AIO::poll_fileno,	2664	fd => BDB::poll_fileno,
2015	poll => 'r',	2665	poll => 'r',
2016	prio => 5,	2666	prio => 0,
2017	data => WF_AUTOCANCEL,
2018	cb => \&IO::AIO::poll_cb,
2019	);
2020
2021	Event->timer (
2022	data => WF_AUTOCANCEL,	2667	data => WF_AUTOCANCEL,
2023	after => 0,	2668	cb => \&BDB::poll_cb,
2024	interval => 10,	2669	);
2025	cb => sub {	2670	BDB::min_parallel 8;
2026	(Coro::unblock_sub {	2671
2027	write_runtime	2672	BDB::set_sync_prepare {
2028	or warn "ERROR: unable to write runtime file: $!";	2673	my $status;
		2674	my $current = $Coro::current;
		2675	(
		2676	sub {
		2677	$status = $!;
		2678	$current->ready; undef $current;
		2679	},
		2680	sub {
		2681	Coro::schedule while defined $current;
		2682	$! = $status;
		2683	},
		2684	)
		2685	};
		2686
		2687	unless ($DB_ENV) {
		2688	$DB_ENV = BDB::db_env_create;
		2689
		2690	cf::sync_job {
		2691	eval {
		2692	BDB::db_env_open
		2693	$DB_ENV,
		2694	$BDB_ENV_DIR,
		2695	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2696	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2697	0666;
		2698
		2699	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2700
		2701	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2702	$DB_ENV->set_lk_detect;
		2703	};
		2704
		2705	cf::cleanup "db_env_open(db): $@" if $@;
2029	})->();	2706	};
2030	},	2707	}
2031	);	2708	}
		2709
		2710	{
		2711	IO::AIO::min_parallel 8;
		2712
		2713	undef $Coro::AIO::WATCHER;
		2714	IO::AIO::max_poll_time $TICK * 0.1;
		2715	$AIO_POLL_WATCHER = Event->io (
		2716	reentrant => 0,
		2717	data => WF_AUTOCANCEL,
		2718	fd => IO::AIO::poll_fileno,
		2719	poll => 'r',
		2720	prio => 6,
		2721	cb => \&IO::AIO::poll_cb,
		2722	);
		2723	}
		2724
		2725	END { cf::emergency_save }
2032		2726
2033	1	2727	1
2034		2728

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