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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.113 by root, Mon Jan 1 15:32:40 2007 UTC vs.
Revision 1.241 by root, Mon Apr 16 11:09:32 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	# used to convert map paths into valid unix filenames by replacing / by ∕
		82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		83
58	binmode STDOUT;	84	binmode STDOUT;
59	binmode STDERR;	85	binmode STDERR;
60		86
61	# read virtual server time, if available	87	# read virtual server time, if available
…		…
68	mkdir cf::localdir;	94	mkdir cf::localdir;
69	mkdir cf::localdir . "/" . cf::playerdir;	95	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	96	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	97	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	98	mkdir $RANDOM_MAPS;
		99	mkdir $BDB_ENV_DIR;
73		100
74	# a special map that is always available	101	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		102
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	103	sub cf::map::normalise;
78		104
79	#############################################################################	105	#############################################################################
80		106
81	=head2 GLOBAL VARIABLES	107	=head2 GLOBAL VARIABLES
82		108
…		…
106		132
107	=item %cf::CFG	133	=item %cf::CFG
108		134
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	135	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	136	from wherever your confdir points to.
		137
		138	=item cf::wait_for_tick, cf::wait_for_tick_begin
		139
		140	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		141	returns directly I<after> the tick processing (and consequently, can only wake one process
		142	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		143
112	=back	144	=back
113		145
114	=cut	146	=cut
115		147
…		…
119	utf8::encode $msg;	151	utf8::encode $msg;
120		152
121	$msg .= "\n"	153	$msg .= "\n"
122	unless $msg =~ /\n$/;	154	unless $msg =~ /\n$/;
123		155
124	LOG llevError, "cfperl: $msg";	156	LOG llevError, $msg;
125	};	157	};
126	}	158	}
127		159
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		179
148	$Event::DIED = sub {	180	$Event::DIED = sub {
149	warn "error in event callback: @_";	181	warn "error in event callback: @_";
150	};	182	};
151		183
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	184	=head2 UTILITY FUNCTIONS
157		185
158	=over 4	186	=over 4
159		187
160	=cut	188	=item dumpval $ref
161		189
		190	=cut
		191
		192	sub dumpval {
		193	eval {
		194	local $SIG{__DIE__};
		195	my $d;
		196	if (1) {
		197	$d = new Data::Dumper([$_[0]], ["*var"]);
		198	$d->Terse(1);
		199	$d->Indent(2);
		200	$d->Quotekeys(0);
		201	$d->Useqq(1);
		202	#$d->Bless(...);
		203	$d->Seen($_[1]) if @_ > 1;
		204	$d = $d->Dump();
		205	}
		206	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		207	$d
		208	} || "[unable to dump $_[0]: '$@']";
		209	}
		210
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		212
164	=item $ref = cf::from_json $json	213	=item $ref = cf::from_json $json
165		214
166	Converts a JSON string into the corresponding perl data structure.	215	Converts a JSON string into the corresponding perl data structure.
167		216
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	217	=item $json = cf::to_json $ref
176		218
177	Converts a perl data structure into its JSON representation.	219	Converts a perl data structure into its JSON representation.
178		220
179	=cut	221	=item cf::lock_wait $string
180		222
181	sub to_json($) {	223	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	224
183	JSON::Syck::Dump $_[0]	225	=item my $lock = cf::lock_acquire $string
		226
		227	Wait until the given lock is available and then acquires it and returns
		228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		229	for example when the coroutine gets canceled), the lock is automatically
		230	returned.
		231
		232	Lock names should begin with a unique identifier (for example, cf::map::find
		233	uses map_find and cf::map::load uses map_load).
		234
		235	=cut
		236
		237	our %LOCK;
		238
		239	sub lock_wait($) {
		240	my ($key) = @_;
		241
		242	# wait for lock, if any
		243	while ($LOCK{$key}) {
		244	push @{ $LOCK{$key} }, $Coro::current;
		245	Coro::schedule;
		246	}
184	}	247	}
		248
		249	sub lock_acquire($) {
		250	my ($key) = @_;
		251
		252	# wait, to be sure we are not locked
		253	lock_wait $key;
		254
		255	$LOCK{$key} = [];
		256
		257	Coro::guard {
		258	# wake up all waiters, to be on the safe side
		259	$_->ready for @{ delete $LOCK{$key} };
		260	}
		261	}
		262
		263	sub freeze_mainloop {
		264	return unless $TICK_WATCHER->is_active;
		265
		266	my $guard = Coro::guard {
		267	$TICK_WATCHER->start;
		268	};
		269	$TICK_WATCHER->stop;
		270	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
185		282
186	=item cf::sync_job { BLOCK }	283	=item cf::sync_job { BLOCK }
187		284
188	The design of crossfire+ requires that the main coro ($Coro::main) is	285	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	286	always able to handle events or runnable, as crossfire+ is only partly
…		…
203	# this is the main coro, too bad, we have to block	300	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	301	# till the operation succeeds, freezing the server :/
205		302
206	# TODO: use suspend/resume instead	303	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	304	# (but this is cancel-safe)
208	local $FREEZE = 1;	305	my $freeze_guard = freeze_mainloop;
209		306
210	my $busy = 1;	307	my $busy = 1;
211	my @res;	308	my @res;
212		309
213	(Coro::async {	310	(async {
214	@res = eval { $job->() };	311	@res = eval { $job->() };
215	warn $@ if $@;	312	warn $@ if $@;
216	undef $busy;	313	undef $busy;
217	})->prio (Coro::PRIO_MAX);	314	})->prio (Coro::PRIO_MAX);
218		315
219	while ($busy) {	316	while ($busy) {
220	Coro::cede_notself;	317	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	318	}
223		319
224	wantarray ? @res : $res[0]	320	wantarray ? @res : $res[0]
225	} else {	321	} else {
226	# we are in another coroutine, how wonderful, everything just works	322	# we are in another coroutine, how wonderful, everything just works
227		323
228	$job->()	324	$job->()
229	}	325	}
230	}	326	}
231		327
232	=item $coro = cf::coro { BLOCK }	328	=item $coro = cf::async_ext { BLOCK }
233		329
234	Creates and returns a new coro. This coro is automcatially being canceled	330	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	331	extension calling this is being unloaded.
236		332
237	=cut	333	=cut
238		334
239	sub coro(&) {	335	sub async_ext(&) {
240	my $cb = shift;	336	my $cb = shift;
241		337
242	my $coro; $coro = async {	338	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		339
249	$coro->on_destroy (sub {	340	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	341	delete $EXT_CORO{$coro+0};
251	});	342	});
252	$EXT_CORO{$coro+0} = $coro;	343	$EXT_CORO{$coro+0} = $coro;
253		344
254	$coro	345	$coro
255	}	346	}
256		347
257	sub write_runtime {	348	sub write_runtime {
		349	my $guard = cf::lock_acquire "write_runtime";
		350
258	my $runtime = cf::localdir . "/runtime";	351	my $runtime = cf::localdir . "/runtime";
259		352
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	354	or return;
262		355
		356	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	357	# 10 is the runtime save interval, for a monotonic clock
		358	# 60 allows for the watchdog to kill the server.
		359
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	360	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	361	and return;
266		362
		363	# always fsync - this file is important
267	aio_fsync $fh	364	aio_fsync $fh
268	and return;	365	and return;
269		366
270	close $fh	367	close $fh
271	or return;	368	or return;
…		…
274	and return;	371	and return;
275		372
276	1	373	1
277	}	374	}
278		375
		376	=item cf::datalog type => key => value, ...
		377
		378	Log a datalog packet of the given type with the given key-value pairs.
		379
		380	=cut
		381
		382	sub datalog($@) {
		383	my ($type, %kv) = @_;
		384	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		385	}
		386
279	=back	387	=back
280		388
281	=cut	389	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392		390
393	#############################################################################	391	#############################################################################
394		392
395	=head2 ATTACHABLE OBJECTS	393	=head2 ATTACHABLE OBJECTS
396		394
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	520	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	521	our @CB_MAP = ();
524		522
525	my %attachment;	523	my %attachment;
526		524
		525	sub cf::attachable::thawer_merge {
		526	# simply override everything except _meta
		527	local $_[0]{_meta};
		528	%{$_[0]} = %{$_[1]};
		529	}
		530
527	sub _attach_cb($$$$) {	531	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	532	my ($registry, $event, $prio, $cb) = @_;
529		533
530	use sort 'stable';	534	use sort 'stable';
531		535
…		…
702	# object support	706	# object support
703		707
704	sub reattach {	708	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	709	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	710	my ($obj) = @_;
		711
		712	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		713
708	my $registry = $obj->registry;	714	my $registry = $obj->registry;
709		715
710	@$registry = ();	716	@$registry = ();
711		717
…		…
758	$filename, length $$rdata, scalar @$objs;	764	$filename, length $$rdata, scalar @$objs;
759		765
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	767	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	769	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	770	close $fh;
765		771
766	if (@$objs) {	772	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	773	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	774	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	775	my $data = Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	776	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	777	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	778	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	779	aio_rename "$filename.pst~", "$filename.pst";
774	}	780	}
775	} else {	781	} else {
776	aio_unlink "$filename.pst";	782	aio_unlink "$filename.pst";
…		…
807	(aio_load "$filename.pst", $av) >= 0	813	(aio_load "$filename.pst", $av) >= 0
808	or return;	814	or return;
809	$av = eval { (Storable::thaw $av)->{objs} };	815	$av = eval { (Storable::thaw $av)->{objs} };
810	}	816	}
811		817
		818	warn sprintf "loading %s (%d)\n",
		819	$filename, length $data, scalar @{$av || []};#d#
812	return ($data, $av);	820	return ($data, $av);
813	}	821	}
814		822
815	#############################################################################	823	#############################################################################
816	# command handling &c	824	# command handling &c
…		…
841	=cut	849	=cut
842		850
843	sub register_extcmd {	851	sub register_extcmd {
844	my ($name, $cb) = @_;	852	my ($name, $cb) = @_;
845		853
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	854	$EXTCMD{$name} = $cb;
850	}	855	}
851		856
852	cf::player->attach (	857	cf::player->attach (
853	on_command => sub {	858	on_command => sub {
854	my ($pl, $name, $params) = @_;	859	my ($pl, $name, $params) = @_;
…		…
867		872
868	my $msg = eval { from_json $buf };	873	my $msg = eval { from_json $buf };
869		874
870	if (ref $msg) {	875	if (ref $msg) {
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	877	if (my %reply = $cb->($pl, $msg)) {
873	$pl->ext_reply ($msg->{msgid}, %reply);	878	$pl->ext_reply ($msg->{msgid}, %reply);
874	}	879	}
875	}	880	}
876	} else {	881	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
879		884
880	cf::override;	885	cf::override;
881	},	886	},
882	);	887	);
883		888
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	889	sub load_extension {
891	my ($path) = @_;	890	my ($path) = @_;
892		891
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
894	my $base = $1;	893	my $base = $1;
895	my $pkg = $1;	894	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;	895	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";	896	$pkg = "ext::$pkg";
898		897
899	warn "loading '$path' into '$pkg'\n";	898	warn "... loading '$path' into '$pkg'\n";
900		899
901	open my $fh, "<:utf8", $path	900	open my $fh, "<:utf8", $path
902	or die "$path: $!";	901	or die "$path: $!";
903		902
904	my $source =	903	my $source =
905	"package $pkg; use strict; use utf8;\n"	904	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"	905	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })	906	. (do { local $/; <$fh> })
908	. "\n};\n1";	907	. "\n};\n1";
909		908
910	eval $source	909	unless (eval $source) {
911	or die $@ ? "$path: $@\n"	910	my $msg = $@ ? "$path: $@\n"
912	: "extension disabled.\n";	911	: "extension disabled.\n";
913		912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
914	push @exts, $pkg;	913	warn $@;
915	$ext_pkg{$base} = $pkg;	914	warn "mandatory extension failed to load, exiting.\n";
916		915	exit 1;
917	# no strict 'refs';	916	}
918	# @{"$pkg\::ISA"} = ext::;	917	die $@;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }	918	}
933		919
934	# remove commands	920	push @EXTS, $pkg;
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}
943	}
944
945	# remove extcmds
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}	921	}
959		922
960	sub load_extensions {	923	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {	924	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	925	next unless -r $ext;
…		…
966	} or warn "$ext not loaded: $@";	929	} or warn "$ext not loaded: $@";
967	}	930	}
968	}	931	}
969		932
970	#############################################################################	933	#############################################################################
971	# load/save/clean perl data associated with a map
972
973	*cf::mapsupport::on_clean = sub {
974	my ($map) = @_;
975
976	my $path = $map->tmpname;
977	defined $path or return;
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}
990
991	# TODO: compatibility cruft, remove when no longer needed
992	cf::player->attach (
993	on_load => sub {
994	my ($pl, $path) = @_;
995
996	for my $o (all_objects $pl->ob) {
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
998	$o->set_ob_key_value ("_perl_data");
999
1000	%$o = %{ Storable::thaw pack "H*", $value };
1001	}
1002	}
1003	},
1004	);
1005
1006	#############################################################################
1007		934
1008	=head2 CORE EXTENSIONS	935	=head2 CORE EXTENSIONS
1009		936
1010	Functions and methods that extend core crossfire objects.	937	Functions and methods that extend core crossfire objects.
1011		938
		939	=cut
		940
		941	package cf::player;
		942
		943	use Coro::AIO;
		944
1012	=head3 cf::player	945	=head3 cf::player
1013		946
1014	=over 4	947	=over 4
1015		948
1016	=item cf::player::exists $login	949	=item cf::player::find $login
1017		950
1018	Returns true when the given account exists.	951	Returns the given player object, loading it if necessary (might block).
1019		952
1020	=cut	953	=cut
1021		954
1022	sub cf::player::exists($) {	955	sub playerdir($) {
1023	cf::player::find $_[0]	956	cf::localdir
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	957	. "/"
		958	. cf::playerdir
		959	. "/"
		960	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1025	}	961	}
1026		962
		963	sub path($) {
		964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		965
		966	(playerdir $login) . "/playerdata"
		967	}
		968
		969	sub find_active($) {
		970	$cf::PLAYER{$_[0]}
		971	and $cf::PLAYER{$_[0]}->active
		972	and $cf::PLAYER{$_[0]}
		973	}
		974
		975	sub exists($) {
		976	my ($login) = @_;
		977
		978	$cf::PLAYER{$login}
		979	or cf::sync_job { !aio_stat path $login }
		980	}
		981
		982	sub find($) {
		983	return $cf::PLAYER{$_[0]} || do {
		984	my $login = $_[0];
		985
		986	my $guard = cf::lock_acquire "user_find:$login";
		987
		988	$cf::PLAYER{$_[0]} || do {
		989	# rename old playerfiles to new ones
		990	#TODO: remove when no longer required
		991	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		992	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		993	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		994	aio_unlink +(playerdir $login) . "/$login.pl";
		995
		996	my $pl = load_pl path $login
		997	or return;
		998	$cf::PLAYER{$login} = $pl
		999	}
		1000	}
		1001	}
		1002
		1003	sub save($) {
		1004	my ($pl) = @_;
		1005
		1006	return if $pl->{deny_save};
		1007
		1008	my $path = path $pl;
		1009	my $guard = cf::lock_acquire "user_save:$path";
		1010
		1011	return if $pl->{deny_save};
		1012
		1013	aio_mkdir playerdir $pl, 0770;
		1014	$pl->{last_save} = $cf::RUNTIME;
		1015
		1016	$pl->save_pl ($path);
		1017	Coro::cede;
		1018	}
		1019
		1020	sub new($) {
		1021	my ($login) = @_;
		1022
		1023	my $self = create;
		1024
		1025	$self->ob->name ($login);
		1026	$self->{deny_save} = 1;
		1027
		1028	$cf::PLAYER{$login} = $self;
		1029
		1030	$self
		1031	}
		1032
		1033	=item $pl->quit_character
		1034
		1035	Nukes the player without looking back. If logged in, the connection will
		1036	be destroyed. May block for a long time.
		1037
		1038	=cut
		1039
		1040	sub quit_character {
		1041	my ($pl) = @_;
		1042
		1043	my $name = $pl->ob->name;
		1044
		1045	$pl->{deny_save} = 1;
		1046	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1047
		1048	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1049	$pl->deactivate;
		1050	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1051	$pl->ns->destroy if $pl->ns;
		1052
		1053	my $path = playerdir $pl;
		1054	my $temp = "$path~$cf::RUNTIME~deleting~";
		1055	aio_rename $path, $temp;
		1056	delete $cf::PLAYER{$pl->ob->name};
		1057	$pl->destroy;
		1058
		1059	my $prefix = qr<^~\Q$name\E/>;
		1060
		1061	# nuke player maps
		1062	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1063
		1064	IO::AIO::aio_rmtree $temp;
		1065	}
		1066
		1067	=item $pl->kick
		1068
		1069	Kicks a player out of the game. This destroys the connection.
		1070
		1071	=cut
		1072
		1073	sub kick {
		1074	my ($pl, $kicker) = @_;
		1075
		1076	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1077	$pl->killer ("kicked");
		1078	$pl->ns->destroy;
		1079	}
		1080
		1081	=item cf::player::list_logins
		1082
		1083	Returns am arrayref of all valid playernames in the system, can take a
		1084	while and may block, so not sync_job-capable, ever.
		1085
		1086	=cut
		1087
		1088	sub list_logins {
		1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1090	or return [];
		1091
		1092	my @logins;
		1093
		1094	for my $login (@$dirs) {
		1095	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1096	aio_read $fh, 0, 512, my $buf, 0 or next;
		1097	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1098
		1099	utf8::decode $login;
		1100	push @logins, $login;
		1101	}
		1102
		1103	\@logins
		1104	}
		1105
		1106	=item $player->maps
		1107
		1108	Returns an arrayref of map paths that are private for this
		1109	player. May block.
		1110
		1111	=cut
		1112
		1113	sub maps($) {
		1114	my ($pl) = @_;
		1115
		1116	$pl = ref $pl ? $pl->ob->name : $pl;
		1117
		1118	my $files = aio_readdir playerdir $pl
		1119	or return;
		1120
		1121	my @paths;
		1122
		1123	for (@$files) {
		1124	utf8::decode $_;
		1125	next if /\.(?:pl|pst)$/;
		1126	next unless /^$PATH_SEP/o;
		1127
		1128	push @paths, cf::map::normalise "~$pl/$_";
		1129	}
		1130
		1131	\@paths
		1132	}
		1133
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1134	=item $player->ext_reply ($msgid, %msg)
1028		1135
1029	Sends an ext reply to the player.	1136	Sends an ext reply to the player.
1030		1137
1031	=cut	1138	=cut
1032		1139
1033	sub cf::player::ext_reply($$$%) {	1140	sub ext_reply($$%) {
1034	my ($self, $id, %msg) = @_;	1141	my ($self, $id, %msg) = @_;
1035		1142
1036	$msg{msgid} = $id;	1143	$msg{msgid} = $id;
1037		1144
1038	$self->send ("ext " . to_json \%msg);	1145	$self->send ("ext " . cf::to_json \%msg);
		1146	}
		1147
		1148	=item $player->ext_event ($type, %msg)
		1149
		1150	Sends an ext event to the client.
		1151
		1152	=cut
		1153
		1154	sub ext_event($$%) {
		1155	my ($self, $type, %msg) = @_;
		1156
		1157	$self->ns->ext_event ($type, %msg);
		1158	}
		1159
		1160	=head3 cf::region
		1161
		1162	=over 4
		1163
		1164	=cut
		1165
		1166	package cf::region;
		1167
		1168	=item cf::region::find_by_path $path
		1169
		1170	Tries to decuce the probable region for a map knowing only its path.
		1171
		1172	=cut
		1173
		1174	sub find_by_path($) {
		1175	my ($path) = @_;
		1176
		1177	my ($match, $specificity);
		1178
		1179	for my $region (list) {
		1180	if ($region->match && $path =~ $region->match) {
		1181	($match, $specificity) = ($region, $region->specificity)
		1182	if $region->specificity > $specificity;
		1183	}
		1184	}
		1185
		1186	$match
1039	}	1187	}
1040		1188
1041	=back	1189	=back
1042
1043		1190
1044	=head3 cf::map	1191	=head3 cf::map
1045		1192
1046	=over 4	1193	=over 4
1047		1194
…		…
1050	package cf::map;	1197	package cf::map;
1051		1198
1052	use Fcntl;	1199	use Fcntl;
1053	use Coro::AIO;	1200	use Coro::AIO;
1054		1201
		1202	use overload
		1203	'""' => \&as_string,
		1204	fallback => 1;
		1205
1055	our $MAX_RESET = 7200;	1206	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1207	our $DEFAULT_RESET = 3000;
1057		1208
1058	sub generate_random_map {	1209	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1210	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1211	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1212	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1213	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1214	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1215	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1216	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1217	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1218	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1219	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1220	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1221	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1222	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1223	(cf::region::find $rmp->{region}), $rmp->{custom}
		1224	)
		1225	}
		1226
		1227	=item cf::map->register ($regex, $prio)
		1228
		1229	Register a handler for the map path matching the given regex at the
		1230	givne priority (higher is better, built-in handlers have priority 0, the
		1231	default).
		1232
		1233	=cut
		1234
		1235	sub register {
		1236	my (undef, $regex, $prio) = @_;
		1237	my $pkg = caller;
		1238
		1239	no strict;
		1240	push @{"$pkg\::ISA"}, __PACKAGE__;
		1241
		1242	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1243	}
		1244
		1245	# also paths starting with '/'
		1246	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1247
		1248	sub thawer_merge {
		1249	my ($self, $merge) = @_;
		1250
		1251	# we have to keep some variables in memory intact
		1252	local $self->{path};
		1253	local $self->{load_path};
		1254	local $self->{deny_save};
		1255	local $self->{deny_reset};
		1256
		1257	$self->SUPER::thawer_merge ($merge);
		1258	}
		1259
		1260	sub normalise {
		1261	my ($path, $base) = @_;
		1262
		1263	$path = "$path"; # make sure its a string
		1264
		1265	$path =~ s/\.map$//;
		1266
		1267	# map plan:
		1268	#
		1269	# /! non-realised random map exit (special hack!)
		1270	# {... are special paths that are not being touched
		1271	# ?xxx/... are special absolute paths
		1272	# ?random/... random maps
		1273	# /... normal maps
		1274	# ~user/... per-player map of a specific user
		1275
		1276	$path =~ s/$PATH_SEP/\//go;
		1277
		1278	# treat it as relative path if it starts with
		1279	# something that looks reasonable
		1280	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1281	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1282
		1283	$base =~ s{[^/]+/?$}{};
		1284	$path = "$base/$path";
		1285	}
		1286
		1287	for ($path) {
		1288	redo if s{//}{/};
		1289	redo if s{/\.?/}{/};
		1290	redo if s{/[^/]+/\.\./}{/};
		1291	}
		1292
		1293	$path
		1294	}
		1295
		1296	sub new_from_path {
		1297	my (undef, $path, $base) = @_;
		1298
		1299	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1300
		1301	$path = normalise $path, $base;
		1302
		1303	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1304	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1305	my $self = bless cf::map::new, $pkg;
		1306	$self->{path} = $path; $self->path ($path);
		1307	$self->init; # pass $1 etc.
		1308	return $self;
		1309	}
		1310	}
		1311
		1312	Carp::carp "unable to resolve path '$path' (base '$base').";
		1313	()
		1314	}
		1315
		1316	sub init {
		1317	my ($self) = @_;
		1318
		1319	$self
		1320	}
		1321
		1322	sub as_string {
		1323	my ($self) = @_;
		1324
		1325	"$self->{path}"
		1326	}
		1327
		1328	# the displayed name, this is a one way mapping
		1329	sub visible_name {
		1330	&as_string
		1331	}
		1332
		1333	# the original (read-only) location
		1334	sub load_path {
		1335	my ($self) = @_;
		1336
		1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1338	}
		1339
		1340	# the temporary/swap location
		1341	sub save_path {
		1342	my ($self) = @_;
		1343
		1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1346	}
		1347
		1348	# the unique path, undef == no special unique path
		1349	sub uniq_path {
		1350	my ($self) = @_;
		1351
		1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1075	}	1354	}
1076		1355
1077	# and all this just because we cannot iterate over	1356	# and all this just because we cannot iterate over
1078	# all maps in C++...	1357	# all maps in C++...
1079	sub change_all_map_light {	1358	sub change_all_map_light {
1080	my ($change) = @_;	1359	my ($change) = @_;
1081		1360
1082	$_->change_map_light ($change) for values %cf::MAP;	1361	$_->change_map_light ($change)
		1362	for grep $_->outdoor, values %cf::MAP;
1083	}	1363	}
1084		1364
		1365	sub unlink_save {
		1366	my ($self) = @_;
		1367
		1368	utf8::encode (my $save = $self->save_path);
		1369	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1370	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1371	}
		1372
1085	sub try_load_header($) {	1373	sub load_header_from($) {
1086	my ($path) = @_;	1374	my ($self, $path) = @_;
1087		1375
1088	utf8::encode $path;	1376	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1377	#aio_open $path, O_RDONLY, 0
		1378	# or return;
		1379
		1380	$self->_load_header ($path)
1090	or return;	1381	or return;
1091		1382
1092	my $map = cf::map::new	1383	$self->{load_path} = $path;
		1384
		1385	1
		1386	}
		1387
		1388	sub load_header_orig {
		1389	my ($self) = @_;
		1390
		1391	$self->load_header_from ($self->load_path)
		1392	}
		1393
		1394	sub load_header_temp {
		1395	my ($self) = @_;
		1396
		1397	$self->load_header_from ($self->save_path)
		1398	}
		1399
		1400	sub prepare_temp {
		1401	my ($self) = @_;
		1402
		1403	$self->last_access ((delete $self->{last_access})
		1404	|| $cf::RUNTIME); #d#
		1405	# safety
		1406	$self->{instantiate_time} = $cf::RUNTIME
		1407	if $self->{instantiate_time} > $cf::RUNTIME;
		1408	}
		1409
		1410	sub prepare_orig {
		1411	my ($self) = @_;
		1412
		1413	$self->{load_original} = 1;
		1414	$self->{instantiate_time} = $cf::RUNTIME;
		1415	$self->last_access ($cf::RUNTIME);
		1416	$self->instantiate;
		1417	}
		1418
		1419	sub load_header {
		1420	my ($self) = @_;
		1421
		1422	if ($self->load_header_temp) {
		1423	$self->prepare_temp;
		1424	} else {
		1425	$self->load_header_orig
1093	or return;	1426	or return;
		1427	$self->prepare_orig;
		1428	}
1094		1429
1095	$map->load_header ($path)	1430	$self->default_region (cf::region::find_by_path $self->{path})
1096	or return;	1431	unless $self->default_region;
1097		1432
1098	$map->{load_path} = $path;	1433	1
1099
1100	$map
1101	}	1434	}
1102		1435
		1436	sub find;
1103	sub find_map {	1437	sub find {
1104	my ($path, $origin) = @_;	1438	my ($path, $origin) = @_;
1105		1439
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1440	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1441
		1442	cf::lock_wait "map_find:$path";
		1443
1111	$cf::MAP{$key} || do {	1444	$cf::MAP{$path} || do {
1112	# do it the slow way	1445	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1446	my $map = new_from_path cf::map $path
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	1447	or return;
1127		1448
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	1449	$map->{last_save} = $cf::RUNTIME;
1139		1450
1140	if ($map->should_reset) {	1451	$map->load_header
		1452	or return;
		1453
		1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1455	# doing this can freeze the server in a sync job, obviously
		1456	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1457	$map->reset;
1142	$map = find_map $path;	1458	undef $guard;
		1459	return find $path;
1143	}	1460	}
1144		1461
1145	$cf::MAP{$key} = $map	1462	$cf::MAP{$path} = $map
1146	}	1463	}
1147	}	1464	}
		1465
		1466	sub pre_load { }
		1467	sub post_load { }
1148		1468
1149	sub load {	1469	sub load {
1150	my ($self) = @_;	1470	my ($self) = @_;
1151		1471
		1472	local $self->{deny_reset} = 1; # loading can take a long time
		1473
		1474	my $path = $self->{path};
		1475	my $guard = cf::lock_acquire "map_load:$path";
		1476
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1477	return if $self->in_memory != cf::MAP_SWAPPED;
1153		1478
1154	$self->in_memory (cf::MAP_LOADING);	1479	$self->in_memory (cf::MAP_LOADING);
1155		1480
1156	my $path = $self->{path};
1157
1158	$self->alloc;	1481	$self->alloc;
		1482
		1483	$self->pre_load;
		1484	Coro::cede;
		1485
1159	$self->load_objects ($self->{load_path}, 1)	1486	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1487	or return;
1161		1488
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1490	if delete $self->{load_original};
1164		1491
1165	if (my $uniq = $path->uniq_path) {	1492	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1493	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1494	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1495	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1496	$self->_load_objects ($uniq, 0);
1170	}	1497	}
1171	}	1498	}
1172		1499
		1500	Coro::cede;
1173	# now do the right thing for maps	1501	# now do the right thing for maps
1174	$self->link_multipart_objects;	1502	$self->link_multipart_objects;
		1503	Coro::cede;
1175		1504
1176	if ($self->{path}->is_style_map) {	1505	unless ($self->{deny_activate}) {
1177	$self->{deny_save} = 1;	1506	$self->decay_objects;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;	1507	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;	1508	$self->update_buttons;
		1509	Coro::cede;
1183	$self->set_darkness_map;	1510	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1511	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1512	unless $self->difficulty;
		1513	Coro::cede;
1186	$self->activate;	1514	$self->activate;
		1515	Coro::cede;
1187	}	1516	}
		1517
		1518	$self->post_load;
		1519	Coro::cede;
1188		1520
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1521	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1522	}
1191		1523
1192	sub load_map_sync {	1524	sub customise_for {
		1525	my ($self, $ob) = @_;
		1526
		1527	return find "~" . $ob->name . "/" . $self->{path}
		1528	if $self->per_player;
		1529
		1530	$self
		1531	}
		1532
		1533	# find and load all maps in the 3x3 area around a map
		1534	sub load_diag {
		1535	my ($map) = @_;
		1536
		1537	my @diag; # diagonal neighbours
		1538
		1539	for (0 .. 3) {
		1540	my $neigh = $map->tile_path ($_)
		1541	or next;
		1542	$neigh = find $neigh, $map
		1543	or next;
		1544	$neigh->load;
		1545
		1546	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1547	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1548	}
		1549
		1550	for (@diag) {
		1551	my $neigh = find @$_
		1552	or next;
		1553	$neigh->load;
		1554	}
		1555	}
		1556
		1557	sub find_sync {
1193	my ($path, $origin) = @_;	1558	my ($path, $origin) = @_;
1194		1559
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1560	cf::sync_job { find $path, $origin }
		1561	}
1196		1562
1197	cf::sync_job {	1563	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1564	my ($map) = @_;
1199	or return;	1565
		1566	cf::sync_job { $map->load };
		1567	}
		1568
		1569	our %MAP_PREFETCH;
		1570	our $MAP_PREFETCHER = undef;
		1571
		1572	sub find_async {
		1573	my ($path, $origin) = @_;
		1574
		1575	$path = normalise $path, $origin && $origin->{path};
		1576
		1577	if (my $map = $cf::MAP{$path}) {
		1578	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1579	}
		1580
		1581	undef $MAP_PREFETCH{$path};
		1582	$MAP_PREFETCHER ||= cf::async {
		1583	while (%MAP_PREFETCH) {
		1584	for my $path (keys %MAP_PREFETCH) {
		1585	my $map = find $path
		1586	or next;
1200	$map->load;	1587	$map->load;
1201	$map	1588
		1589	delete $MAP_PREFETCH{$path};
		1590	}
		1591	}
		1592	undef $MAP_PREFETCHER;
1202	}	1593	};
		1594	$MAP_PREFETCHER->prio (6);
		1595
		1596	()
1203	}	1597	}
1204		1598
1205	sub save {	1599	sub save {
1206	my ($self) = @_;	1600	my ($self) = @_;
1207		1601
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1602	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1603
1211	$self->{last_save} = $cf::RUNTIME;	1604	$self->{last_save} = $cf::RUNTIME;
1212		1605
1213	return unless $self->dirty;	1606	return unless $self->dirty;
1214		1607
		1608	my $save = $self->save_path; utf8::encode $save;
		1609	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1610
1215	$self->{load_path} = $save;	1611	$self->{load_path} = $save;
1216		1612
1217	return if $self->{deny_save};	1613	return if $self->{deny_save};
1218		1614
		1615	local $self->{last_access} = $self->last_access;#d#
		1616
		1617	cf::async {
		1618	$_->contr->save for $self->players;
		1619	};
		1620
1219	if ($uniq) {	1621	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1622	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1623	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1624	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1625	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1626	}
1225	}	1627	}
1226		1628
1227	sub swap_out {	1629	sub swap_out {
1228	my ($self) = @_;	1630	my ($self) = @_;
		1631
		1632	# save first because save cedes
		1633	$self->save;
		1634
		1635	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1636
1230	return if $self->players;	1637	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1638	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1639	return if $self->{deny_save};
1233		1640
1234	$self->save;
1235	$self->clear;	1641	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1642	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1643	}
1238		1644
1239	sub reset_at {	1645	sub reset_at {
1240	my ($self) = @_;	1646	my ($self) = @_;
1241		1647
1242	# TODO: safety, remove and allow resettable per-player maps	1648	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};	1649	return 1e99 if $self->isa ("ext::map_per_player");#d#
1244	return 1e100 if $self->{deny_reset};	1650	return 1e99 if $self->{deny_reset};
1245		1651
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1654
1250	$time + $to	1655	$time + $to
1251	}	1656	}
1252		1657
1253	sub should_reset {	1658	sub should_reset {
1254	my ($self) = @_;	1659	my ($self) = @_;
1255		1660
1256	$self->reset_at <= $cf::RUNTIME	1661	$self->reset_at <= $cf::RUNTIME
1257	}	1662	}
1258		1663
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub rename {
1268	my ($self, $new_path) = @_;
1269
1270	$self->unlink_save;
1271
1272	delete $cf::MAP{$self->path};
1273	$self->{path} = new cf::path $new_path;
1274	$self->path ($self->{path}->path);
1275	$cf::MAP{$self->path} = $self;
1276
1277	$self->save;
1278	}
1279
1280	sub reset {	1664	sub reset {
1281	my ($self) = @_;	1665	my ($self) = @_;
1282		1666
		1667	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1668
1283	return if $self->players;	1669	return if $self->players;
1284	return if $self->{path}{user_rel};#d#	1670	return if $self->isa ("ext::map_per_player");#d#
1285		1671
1286	warn "resetting map ", $self->path;#d#	1672	warn "resetting map ", $self->path;#d#
1287		1673
		1674	$self->in_memory (cf::MAP_SWAPPED);
		1675
		1676	# need to save uniques path
		1677	unless ($self->{deny_save}) {
		1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1679
		1680	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1681	if $uniq;
		1682	}
		1683
1288	delete $cf::MAP{$self->path};	1684	delete $cf::MAP{$self->path};
		1685
		1686	$self->clear;
1289		1687
1290	$_->clear_links_to ($self) for values %cf::MAP;	1688	$_->clear_links_to ($self) for values %cf::MAP;
1291		1689
1292	$self->unlink_save;	1690	$self->unlink_save;
1293	$self->destroy;	1691	$self->destroy;
1294	}	1692	}
1295		1693
1296	sub customise_for {	1694	my $nuke_counter = "aaaa";
1297	my ($map, $ob) = @_;
1298		1695
1299	if ($map->per_player) {	1696	sub nuke {
1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1697	my ($self) = @_;
1301	}
1302		1698
1303	$map	1699	delete $cf::MAP{$self->path};
1304	}
1305		1700
1306	sub emergency_save {	1701	$self->unlink_save;
1307	local $cf::FREEZE = 1;
1308		1702
1309	warn "enter emergency map save\n";	1703	bless $self, "cf::map";
		1704	delete $self->{deny_reset};
		1705	$self->{deny_save} = 1;
		1706	$self->reset_timeout (1);
		1707	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1310		1708
1311	cf::sync_job {	1709	$cf::MAP{$self->path} = $self;
1312	warn "begin emergency map save\n";	1710
1313	$_->save for values %cf::MAP;	1711	$self->reset; # polite request, might not happen
		1712	}
		1713
		1714	=item cf::map::unique_maps
		1715
		1716	Returns an arrayref of paths of all shared maps that have
		1717	instantiated unique items. May block.
		1718
		1719	=cut
		1720
		1721	sub unique_maps() {
		1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1723	or return;
		1724
		1725	my @paths;
		1726
		1727	for (@$files) {
		1728	utf8::decode $_;
		1729	next if /\.pst$/;
		1730	next unless /^$PATH_SEP/o;
		1731
		1732	push @paths, cf::map::normalise $_;
1314	};	1733	}
1315		1734
1316	warn "end emergency map save\n";	1735	\@paths
1317	}	1736	}
1318		1737
1319	package cf;	1738	package cf;
1320		1739
1321	=back	1740	=back
1322		1741
		1742	=head3 cf::object
		1743
		1744	=cut
		1745
		1746	package cf::object;
		1747
		1748	=over 4
		1749
		1750	=item $ob->inv_recursive
		1751
		1752	Returns the inventory of the object _and_ their inventories, recursively.
		1753
		1754	=cut
		1755
		1756	sub inv_recursive_;
		1757	sub inv_recursive_ {
		1758	map { $_, inv_recursive_ $_->inv } @_
		1759	}
		1760
		1761	sub inv_recursive {
		1762	inv_recursive_ inv $_[0]
		1763	}
		1764
		1765	package cf;
		1766
		1767	=back
1323		1768
1324	=head3 cf::object::player	1769	=head3 cf::object::player
1325		1770
1326	=over 4	1771	=over 4
1327		1772
…		…
1363	(ref $cf::CFG{"may_$access"}	1808	(ref $cf::CFG{"may_$access"}
1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1809	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365	: $cf::CFG{"may_$access"})	1810	: $cf::CFG{"may_$access"})
1366	}	1811	}
1367		1812
		1813	=item $player_object->enter_link
		1814
		1815	Freezes the player and moves him/her to a special map (C<{link}>).
		1816
		1817	The player should be reasonably safe there for short amounts of time. You
		1818	I<MUST> call C<leave_link> as soon as possible, though.
		1819
		1820	Will never block.
		1821
		1822	=item $player_object->leave_link ($map, $x, $y)
		1823
		1824	Moves the player out of the special C<{link}> map onto the specified
		1825	map. If the map is not valid (or omitted), the player will be moved back
		1826	to the location he/she was before the call to C<enter_link>, or, if that
		1827	fails, to the emergency map position.
		1828
		1829	Might block.
		1830
		1831	=cut
		1832
		1833	sub link_map {
		1834	unless ($LINK_MAP) {
		1835	$LINK_MAP = cf::map::find "{link}"
		1836	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1837	$LINK_MAP->load;
		1838	}
		1839
		1840	$LINK_MAP
		1841	}
		1842
1368	sub cf::object::player::enter_link {	1843	sub cf::object::player::enter_link {
1369	my ($self) = @_;	1844	my ($self) = @_;
1370		1845
1371	return if $self->map == $LINK_MAP;	1846	$self->deactivate_recursive;
1372		1847
		1848	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1849
1373	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1374	if $self->map;	1851	if $self->map;
1375		1852
1376	$self->enter_map ($LINK_MAP, 20, 20);	1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1377	$self->deactivate_recursive;
1378	}	1854	}
1379		1855
1380	sub cf::object::player::leave_link {	1856	sub cf::object::player::leave_link {
1381	my ($self, $map, $x, $y) = @_;	1857	my ($self, $map, $x, $y) = @_;
1382		1858
1383	my $link_pos = delete $self->{_link_pos};	1859	my $link_pos = delete $self->{_link_pos};
1384		1860
1385	unless ($map) {	1861	unless ($map) {
1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388	# restore original map position	1862	# restore original map position
1389	($map, $x, $y) = @{ $link_pos || [] };	1863	($map, $x, $y) = @{ $link_pos || [] };
1390	$map = cf::map::find_map $map;	1864	$map = cf::map::find $map;
1391		1865
1392	unless ($map) {	1866	unless ($map) {
1393	($map, $x, $y) = @$EMERGENCY_POSITION;	1867	($map, $x, $y) = @$EMERGENCY_POSITION;
1394	$map = cf::map::find_map $map	1868	$map = cf::map::find $map
1395	or die "FATAL: cannot load emergency map\n";	1869	or die "FATAL: cannot load emergency map\n";
1396	}	1870	}
1397	}	1871	}
1398		1872
1399	($x, $y) = (-1, -1)	1873	($x, $y) = (-1, -1)
…		…
1402	# use -1 or undef as default coordinates, not 0, 0	1876	# use -1 or undef as default coordinates, not 0, 0
1403	($x, $y) = ($map->enter_x, $map->enter_y)	1877	($x, $y) = ($map->enter_x, $map->enter_y)
1404	if $x <=0 && $y <= 0;	1878	if $x <=0 && $y <= 0;
1405		1879
1406	$map->load;	1880	$map->load;
		1881	$map->load_diag;
1407		1882
		1883	return unless $self->contr->active;
1408	$self->activate_recursive;	1884	$self->activate_recursive;
		1885
		1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1409	$self->enter_map ($map, $x, $y);	1887	$self->enter_map ($map, $x, $y);
1410	}	1888	}
1411		1889
		1890	cf::player->attach (
		1891	on_logout => sub {
		1892	my ($pl) = @_;
		1893
		1894	# abort map switching before logout
		1895	if ($pl->ob->{_link_pos}) {
		1896	cf::sync_job {
		1897	$pl->ob->leave_link
		1898	};
		1899	}
		1900	},
		1901	on_login => sub {
		1902	my ($pl) = @_;
		1903
		1904	# try to abort aborted map switching on player login :)
		1905	# should happen only on crashes
		1906	if ($pl->ob->{_link_pos}) {
		1907	$pl->ob->enter_link;
		1908	(async {
		1909	$pl->ob->reply (undef,
		1910	"There was an internal problem at your last logout, "
		1911	. "the server will try to bring you to your intended destination in a second.",
		1912	cf::NDI_RED);
		1913	# we need this sleep as the login has a concurrent enter_exit running
		1914	# and this sleep increases chances of the player not ending up in scorn
		1915	Coro::Timer::sleep 1;
		1916	$pl->ob->leave_link;
		1917	})->prio (2);
		1918	}
		1919	},
		1920	);
		1921
1412	=item $player_object->goto_map ($map, $x, $y)	1922	=item $player_object->goto ($path, $x, $y)
1413		1923
1414	=cut	1924	=cut
1415		1925
1416	sub cf::object::player::goto_map {	1926	sub cf::object::player::goto {
1417	my ($self, $path, $x, $y) = @_;	1927	my ($self, $path, $x, $y) = @_;
1418		1928
1419	$self->enter_link;	1929	$self->enter_link;
1420		1930
1421	(Coro::async {	1931	(async {
1422	$path = new cf::path $path;	1932	my $map = eval {
1423
1424	my $map = cf::map::find_map $path->as_string;	1933	my $map = cf::map::find $path;
1425	$map = $map->customise_for ($self) if $map;	1934	$map = $map->customise_for ($self) if $map;
1426
1427	warn "entering ", $map->path, " at ($x, $y)\n"
1428	if $map;	1935	$map
		1936	} or
		1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1429		1938
1430	$self->leave_link ($map, $x, $y);	1939	$self->leave_link ($map, $x, $y);
1431	})->prio (1);	1940	})->prio (1);
1432	}	1941	}
1433		1942
…		…
1437		1946
1438	sub parse_random_map_params {	1947	sub parse_random_map_params {
1439	my ($spec) = @_;	1948	my ($spec) = @_;
1440		1949
1441	my $rmp = { # defaults	1950	my $rmp = { # defaults
1442	xsize => 10,	1951	xsize => (cf::rndm 15, 40),
1443	ysize => 10,	1952	ysize => (cf::rndm 15, 40),
		1953	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1954	#layout => string,
1444	};	1955	};
1445		1956
1446	for (split /\n/, $spec) {	1957	for (split /\n/, $spec) {
1447	my ($k, $v) = split /\s+/, $_, 2;	1958	my ($k, $v) = split /\s+/, $_, 2;
1448		1959
…		…
1452	$rmp	1963	$rmp
1453	}	1964	}
1454		1965
1455	sub prepare_random_map {	1966	sub prepare_random_map {
1456	my ($exit) = @_;	1967	my ($exit) = @_;
		1968
		1969	my $guard = cf::lock_acquire "exit_prepare:$exit";
1457		1970
1458	# all this does is basically replace the /! path by	1971	# all this does is basically replace the /! path by
1459	# a new random map path (?random/...) with a seed	1972	# a new random map path (?random/...) with a seed
1460	# that depends on the exit object	1973	# that depends on the exit object
1461		1974
1462	my $rmp = parse_random_map_params $exit->msg;	1975	my $rmp = parse_random_map_params $exit->msg;
1463		1976
1464	if ($exit->map) {	1977	if ($exit->map) {
1465	$rmp->{region} = $exit->map->region_name;	1978	$rmp->{region} = $exit->region->name;
1466	$rmp->{origin_map} = $exit->map->path;	1979	$rmp->{origin_map} = $exit->map->path;
1467	$rmp->{origin_x} = $exit->x;	1980	$rmp->{origin_x} = $exit->x;
1468	$rmp->{origin_y} = $exit->y;	1981	$rmp->{origin_y} = $exit->y;
1469	}	1982	}
1470		1983
1471	$rmp->{random_seed} ||= $exit->random_seed;	1984	$rmp->{random_seed} ||= $exit->random_seed;
1472		1985
1473	my $data = cf::to_json $rmp;	1986	my $data = cf::to_json $rmp;
1474	my $md5 = Digest::MD5::md5_hex $data;	1987	my $md5 = Digest::MD5::md5_hex $data;
		1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1475		1989
1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1477	aio_write $fh, 0, (length $data), $data, 0;	1991	aio_write $fh, 0, (length $data), $data, 0;
		1992	undef $fh;
		1993	aio_rename "$meta~", $meta;
1478		1994
1479	$exit->slaying ("?random/$md5");	1995	$exit->slaying ("?random/$md5");
1480	$exit->msg (undef);	1996	$exit->msg (undef);
1481	}	1997	}
1482	}	1998	}
…		…
1484	sub cf::object::player::enter_exit {	2000	sub cf::object::player::enter_exit {
1485	my ($self, $exit) = @_;	2001	my ($self, $exit) = @_;
1486		2002
1487	return unless $self->type == cf::PLAYER;	2003	return unless $self->type == cf::PLAYER;
1488		2004
		2005	if ($exit->slaying eq "/!") {
		2006	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2007	# the problem is that $exit might not survive long enough
		2008	# so it needs to be done right now, right here
		2009	cf::sync_job { prepare_random_map $exit };
		2010	}
		2011
		2012	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2013	my $hp = $exit->stats->hp;
		2014	my $sp = $exit->stats->sp;
		2015
1489	$self->enter_link;	2016	$self->enter_link;
1490		2017
1491	(Coro::async {	2018	(async {
		2019	$self->deactivate_recursive; # just to be sure
1492	unless (eval {	2020	unless (eval {
1493		2021	$self->goto ($slaying, $hp, $sp);
1494	prepare_random_map $exit
1495	if $exit->slaying eq "/!";
1496
1497	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1498	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1499		2022
1500	1;	2023	1;
1501	}) {	2024	}) {
1502	$self->message ("Something went wrong deep within the crossfire server. "	2025	$self->message ("Something went wrong deep within the crossfire server. "
1503	. "I'll try to bring you back to the map you were before. "	2026	. "I'll try to bring you back to the map you were before. "
1504	. "Please report this to the dungeon master",	2027	. "Please report this to the dungeon master!",
1505	cf::NDI_UNIQUE | cf::NDI_RED);	2028	cf::NDI_UNIQUE | cf::NDI_RED);
1506		2029
1507	warn "ERROR in enter_exit: $@";	2030	warn "ERROR in enter_exit: $@";
1508	$self->leave_link;	2031	$self->leave_link;
1509	}	2032	}
1510	})->prio (1);	2033	})->prio (1);
…		…
1523		2046
1524	sub cf::client::send_drawinfo {	2047	sub cf::client::send_drawinfo {
1525	my ($self, $text, $flags) = @_;	2048	my ($self, $text, $flags) = @_;
1526		2049
1527	utf8::encode $text;	2050	utf8::encode $text;
1528	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1529	}	2052	}
1530		2053
		2054	=item $client->ext_event ($type, %msg)
		2055
		2056	Sends an exti event to the client.
		2057
		2058	=cut
		2059
		2060	sub cf::client::ext_event($$%) {
		2061	my ($self, $type, %msg) = @_;
		2062
		2063	$msg{msgtype} = "event_$type";
		2064	$self->send_packet ("ext " . cf::to_json \%msg);
		2065	}
1531		2066
1532	=item $success = $client->query ($flags, "text", \&cb)	2067	=item $success = $client->query ($flags, "text", \&cb)
1533		2068
1534	Queues a query to the client, calling the given callback with	2069	Queues a query to the client, calling the given callback with
1535	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2070	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1560	on_reply => sub {	2095	on_reply => sub {
1561	my ($ns, $msg) = @_;	2096	my ($ns, $msg) = @_;
1562		2097
1563	# this weird shuffling is so that direct followup queries	2098	# this weird shuffling is so that direct followup queries
1564	# get handled first	2099	# get handled first
1565	my $queue = delete $ns->{query_queue};	2100	my $queue = delete $ns->{query_queue}
		2101	or return; # be conservative, not sure how that can happen, but we saw a crash here
1566		2102
1567	(shift @$queue)->[1]->($msg);	2103	(shift @$queue)->[1]->($msg);
		2104	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1568		2105
1569	push @{ $ns->{query_queue} }, @$queue;	2106	push @{ $ns->{query_queue} }, @$queue;
1570		2107
1571	if (@{ $ns->{query_queue} } == @$queue) {	2108	if (@{ $ns->{query_queue} } == @$queue) {
1572	if (@$queue) {	2109	if (@$queue) {
…		…
1576	}	2113	}
1577	}	2114	}
1578	},	2115	},
1579	);	2116	);
1580		2117
1581	=item $client->coro (\&cb)	2118	=item $client->async (\&cb)
1582		2119
1583	Create a new coroutine, running the specified callback. The coroutine will	2120	Create a new coroutine, running the specified callback. The coroutine will
1584	be automatically cancelled when the client gets destroyed (e.g. on logout,	2121	be automatically cancelled when the client gets destroyed (e.g. on logout,
1585	or loss of connection).	2122	or loss of connection).
1586		2123
1587	=cut	2124	=cut
1588		2125
1589	sub cf::client::coro {	2126	sub cf::client::async {
1590	my ($self, $cb) = @_;	2127	my ($self, $cb) = @_;
1591		2128
1592	my $coro; $coro = async {	2129	my $coro = &Coro::async ($cb);
1593	eval {
1594	$cb->();
1595	};
1596	warn $@ if $@;
1597	};
1598		2130
1599	$coro->on_destroy (sub {	2131	$coro->on_destroy (sub {
1600	delete $self->{_coro}{$coro+0};	2132	delete $self->{_coro}{$coro+0};
1601	});	2133	});
1602		2134
…		…
1635		2167
1636	# here we export the classes and methods available to script code	2168	# here we export the classes and methods available to script code
1637		2169
1638	=pod	2170	=pod
1639		2171
1640	The following fucntions and emthods are available within a safe environment:	2172	The following functions and methods are available within a safe environment:
1641		2173
1642	cf::object contr pay_amount pay_player map	2174	cf::object contr pay_amount pay_player map
1643	cf::object::player player	2175	cf::object::player player
1644	cf::player peaceful	2176	cf::player peaceful
1645	cf::map trigger	2177	cf::map trigger
…		…
1738	The parameter C<$family> should best start with the name of the extension	2270	The parameter C<$family> should best start with the name of the extension
1739	using it, it should be unique.	2271	using it, it should be unique.
1740		2272
1741	=over 4	2273	=over 4
1742		2274
1743	=item $hashref = cf::db_get $family
1744
1745	Return a hashref for use by the extension C<$family>, which can be
1746	modified. After modifications, you have to call C<cf::db_dirty> or
1747	C<cf::db_sync>.
1748
1749	=item $value = cf::db_get $family => $key	2275	=item $value = cf::db_get $family => $key
1750		2276
1751	Returns a single value from the database	2277	Returns a single value from the database.
1752
1753	=item cf::db_put $family => $hashref
1754
1755	Stores the given family hashref into the database. Updates are delayed, if
1756	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1757		2278
1758	=item cf::db_put $family => $key => $value	2279	=item cf::db_put $family => $key => $value
1759		2280
1760	Stores the given C<$value> in the family hash. Updates are delayed, if you	2281	Stores the given C<$value> in the family.
1761	want the data to be synced to disk immediately, use C<cf::db_sync>.
1762
1763	=item cf::db_dirty
1764
1765	Marks the database as dirty, to be updated at a later time.
1766
1767	=item cf::db_sync
1768
1769	Immediately write the database to disk I<if it is dirty>.
1770		2282
1771	=cut	2283	=cut
1772		2284
1773	our $DB;	2285	our $DB;
1774		2286
1775	{	2287	sub db_init {
		2288	unless ($DB) {
		2289	$DB = BDB::db_create $DB_ENV;
		2290
		2291	cf::sync_job {
		2292	eval {
		2293	$DB->set_flags (BDB::CHKSUM);
		2294
		2295	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2296	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2297	cf::cleanup "db_open(db): $!" if $!;
		2298	};
		2299	cf::cleanup "db_open(db): $@" if $@;
		2300	};
		2301
1776	my $path = cf::localdir . "/database.pst";	2302	my $path = cf::localdir . "/database.pst";
		2303	if (stat $path) {
		2304	cf::sync_job {
		2305	my $pst = Storable::retrieve $path;
1777		2306
1778	sub db_load() {	2307	cf::db_put (board => data => $pst->{board});
1779	warn "loading database $path\n";#d# remove later	2308	cf::db_put (guildrules => data => $pst->{guildrules});
1780	$DB = stat $path ? Storable::retrieve $path : { };	2309	cf::db_put (rent => balance => $pst->{rent}{balance});
1781	}	2310	BDB::db_env_txn_checkpoint $DB_ENV;
1782		2311
1783	my $pid;	2312	unlink $path;
1784
1785	sub db_save() {
1786	warn "saving database $path\n";#d# remove later
1787	waitpid $pid, 0 if $pid;
1788	if (0 == ($pid = fork)) {
1789	$DB->{_meta}{version} = 1;
1790	Storable::nstore $DB, "$path~";
1791	rename "$path~", $path;
1792	cf::_exit 0 if defined $pid;
1793	}	2313	};
1794	}
1795
1796	my $dirty;
1797
1798	sub db_sync() {
1799	db_save if $dirty;
1800	undef $dirty;
1801	}
1802
1803	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1804	db_sync;
1805	});
1806
1807	sub db_dirty() {
1808	$dirty = 1;
1809	$idle->start;
1810	}
1811
1812	sub db_get($;$) {
1813	@_ >= 2
1814	? $DB->{$_[0]}{$_[1]}
1815	: ($DB->{$_[0]} ||= { })
1816	}
1817
1818	sub db_put($$;$) {
1819	if (@_ >= 3) {
1820	$DB->{$_[0]}{$_[1]} = $_[2];
1821	} else {
1822	$DB->{$_[0]} = $_[1];
1823	}
1824	db_dirty;
1825	}
1826
1827	cf::global->attach (
1828	prio => 10000,
1829	on_cleanup => sub {
1830	db_sync;
1831	},	2314	}
1832	);	2315	}
		2316	}
		2317
		2318	sub db_get($$) {
		2319	my $key = "$_[0]/$_[1]";
		2320
		2321	cf::sync_job {
		2322	BDB::db_get $DB, undef, $key, my $data;
		2323
		2324	$! ? ()
		2325	: Compress::LZF::sthaw $data
		2326	}
		2327	}
		2328
		2329	sub db_put($$$) {
		2330	BDB::dbreq_pri 4;
		2331	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1833	}	2332	}
1834		2333
1835	#############################################################################	2334	#############################################################################
1836	# the server's main()	2335	# the server's init and main functions
		2336
		2337	sub load_facedata {
		2338	my $path = sprintf "%s/facedata", cf::datadir;
		2339
		2340	warn "loading facedata from $path\n";
		2341
		2342	my $facedata;
		2343	0 < aio_load $path, $facedata
		2344	or die "$path: $!";
		2345
		2346	$facedata = Coro::Storable::thaw $facedata;
		2347
		2348	$facedata->{version} == 2
		2349	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2350
		2351	{
		2352	my $faces = $facedata->{faceinfo};
		2353
		2354	while (my ($face, $info) = each %$faces) {
		2355	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2356	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2357	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2358	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2359	Coro::cede;
		2360	}
		2361
		2362	while (my ($face, $info) = each %$faces) {
		2363	next unless $info->{smooth};
		2364	my $idx = cf::face::find $face
		2365	or next;
		2366	if (my $smooth = cf::face::find $info->{smooth}) {
		2367	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2368	} else {
		2369	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2370	}
		2371	Coro::cede;
		2372	}
		2373	}
		2374
		2375	{
		2376	my $anims = $facedata->{animinfo};
		2377
		2378	while (my ($anim, $info) = each %$anims) {
		2379	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2380	Coro::cede;
		2381	}
		2382
		2383	cf::anim::invalidate_all; # d'oh
		2384	}
		2385
		2386	1
		2387	}
		2388
		2389	our $archetypes_loaded;
		2390
		2391	sub load_archetypes {
		2392	return 1 if $archetypes_loaded++; # current can only load them once
		2393	load_archetype_file sprintf "%s/archetypes", cf::datadir
		2394	}
		2395
		2396	sub load_treasures {
		2397	load_treasure_file sprintf "%s/treasures", cf::datadir
		2398	}
		2399
		2400	sub reload_resources {
		2401	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2402	or die "unable to load regions file\n";
		2403	load_facedata
		2404	or die "unable to load facedata\n";
		2405	load_archetypes
		2406	or die "unable to load archetypes\n";
		2407	load_treasures
		2408	or die "unable to load treasurelists\n";
		2409	}
		2410
		2411	sub init {
		2412	reload_resources;
		2413	}
1837		2414
1838	sub cfg_load {	2415	sub cfg_load {
1839	open my $fh, "<:utf8", cf::confdir . "/config"	2416	open my $fh, "<:utf8", cf::confdir . "/config"
1840	or return;	2417	or return;
1841		2418
1842	local $/;	2419	local $/;
1843	*CFG = YAML::Syck::Load <$fh>;	2420	*CFG = YAML::Syck::Load <$fh>;
		2421
		2422	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2423
		2424	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2425	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2426
		2427	if (exists $CFG{mlockall}) {
		2428	eval {
		2429	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2430	and die "WARNING: m(un)lockall failed: $!\n";
		2431	};
		2432	warn $@ if $@;
		2433	}
1844	}	2434	}
1845		2435
1846	sub main {	2436	sub main {
1847	# we must not ever block the main coroutine	2437	# we must not ever block the main coroutine
1848	local $Coro::idle = sub {	2438	local $Coro::idle = sub {
1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2439	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1850	(Coro::unblock_sub {	2440	(async {
1851	Event::one_event;	2441	Event::one_event;
1852	})->();	2442	})->prio (Coro::PRIO_MAX);
1853	};	2443	};
1854		2444
1855	cfg_load;	2445	cfg_load;
1856	db_load;	2446	db_init;
1857	load_extensions;	2447	load_extensions;
		2448
		2449	$TICK_WATCHER->start;
1858	Event::loop;	2450	Event::loop;
1859	}	2451	}
1860		2452
1861	#############################################################################	2453	#############################################################################
1862	# initialisation	2454	# initialisation and cleanup
		2455
		2456	# install some emergency cleanup handlers
		2457	BEGIN {
		2458	for my $signal (qw(INT HUP TERM)) {
		2459	Event->signal (
		2460	reentrant => 0,
		2461	data => WF_AUTOCANCEL,
		2462	signal => $signal,
		2463	prio => 0,
		2464	cb => sub {
		2465	cf::cleanup "SIG$signal";
		2466	},
		2467	);
		2468	}
		2469	}
		2470
		2471	sub emergency_save() {
		2472	my $freeze_guard = cf::freeze_mainloop;
		2473
		2474	warn "enter emergency perl save\n";
		2475
		2476	cf::sync_job {
		2477	# use a peculiar iteration method to avoid tripping on perl
		2478	# refcount bugs in for. also avoids problems with players
		2479	# and maps saved/destroyed asynchronously.
		2480	warn "begin emergency player save\n";
		2481	for my $login (keys %cf::PLAYER) {
		2482	my $pl = $cf::PLAYER{$login} or next;
		2483	$pl->valid or next;
		2484	$pl->save;
		2485	}
		2486	warn "end emergency player save\n";
		2487
		2488	warn "begin emergency map save\n";
		2489	for my $path (keys %cf::MAP) {
		2490	my $map = $cf::MAP{$path} or next;
		2491	$map->valid or next;
		2492	$map->save;
		2493	}
		2494	warn "end emergency map save\n";
		2495
		2496	warn "begin emergency database checkpoint\n";
		2497	BDB::db_env_txn_checkpoint $DB_ENV;
		2498	warn "end emergency database checkpoint\n";
		2499	};
		2500
		2501	warn "leave emergency perl save\n";
		2502	}
		2503
		2504	sub post_cleanup {
		2505	my ($make_core) = @_;
		2506
		2507	warn Carp::longmess "post_cleanup backtrace"
		2508	if $make_core;
		2509	}
1863		2510
1864	sub reload() {	2511	sub reload() {
1865	# can/must only be called in main	2512	# can/must only be called in main
1866	if ($Coro::current != $Coro::main) {	2513	if ($Coro::current != $Coro::main) {
1867	warn "can only reload from main coroutine\n";	2514	warn "can only reload from main coroutine";
1868	return;	2515	return;
1869	}	2516	}
1870		2517
1871	warn "reloading...";	2518	warn "reloading...";
1872		2519
1873	local $FREEZE = 1;	2520	warn "entering sync_job";
		2521
		2522	cf::sync_job {
		2523	cf::write_runtime; # external watchdog should not bark
1874	cf::emergency_save;	2524	cf::emergency_save;
		2525	cf::write_runtime; # external watchdog should not bark
1875		2526
1876	eval {	2527	warn "syncing database to disk";
		2528	BDB::db_env_txn_checkpoint $DB_ENV;
		2529
1877	# if anything goes wrong in here, we should simply crash as we already saved	2530	# if anything goes wrong in here, we should simply crash as we already saved
1878		2531
1879	# cancel all watchers	2532	warn "cancelling all WF_AUTOCANCEL watchers";
1880	for (Event::all_watchers) {	2533	for (Event::all_watchers) {
1881	$_->cancel if $_->data & WF_AUTOCANCEL;	2534	$_->cancel if $_->data & WF_AUTOCANCEL;
1882	}	2535	}
1883		2536
		2537	warn "flushing outstanding aio requests";
		2538	for (;;) {
		2539	BDB::flush;
		2540	IO::AIO::flush;
		2541	Coro::cede;
		2542	last unless IO::AIO::nreqs || BDB::nreqs;
		2543	warn "iterate...";
		2544	}
		2545
		2546	++$RELOAD;
		2547
1884	# cancel all extension coros	2548	warn "cancelling all extension coros";
1885	$_->cancel for values %EXT_CORO;	2549	$_->cancel for values %EXT_CORO;
1886	%EXT_CORO = ();	2550	%EXT_CORO = ();
1887		2551
1888	# unload all extensions	2552	warn "removing commands";
1889	for (@exts) {	2553	%COMMAND = ();
		2554
		2555	warn "removing ext commands";
		2556	%EXTCMD = ();
		2557
		2558	warn "unloading/nuking all extensions";
		2559	for my $pkg (@EXTS) {
1890	warn "unloading <$_>";	2560	warn "... unloading $pkg";
1891	unload_extension $_;	2561
		2562	if (my $cb = $pkg->can ("unload")) {
		2563	eval {
		2564	$cb->($pkg);
		2565	1
		2566	} or warn "$pkg unloaded, but with errors: $@";
1892	}	2567	}
1893		2568
		2569	warn "... nuking $pkg";
		2570	Symbol::delete_package $pkg;
		2571	}
		2572
1894	# unload all modules loaded from $LIBDIR	2573	warn "unloading all perl modules loaded from $LIBDIR";
1895	while (my ($k, $v) = each %INC) {	2574	while (my ($k, $v) = each %INC) {
1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2575	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1897		2576
1898	warn "removing <$k>";	2577	warn "... unloading $k";
1899	delete $INC{$k};	2578	delete $INC{$k};
1900		2579
1901	$k =~ s/\.pm$//;	2580	$k =~ s/\.pm$//;
1902	$k =~ s/\//::/g;	2581	$k =~ s/\//::/g;
1903		2582
…		…
1906	}	2585	}
1907		2586
1908	Symbol::delete_package $k;	2587	Symbol::delete_package $k;
1909	}	2588	}
1910		2589
1911	# sync database to disk
1912	cf::db_sync;
1913	IO::AIO::flush;
1914
1915	# get rid of safe::, as good as possible	2590	warn "getting rid of safe::, as good as possible";
1916	Symbol::delete_package "safe::$_"	2591	Symbol::delete_package "safe::$_"
1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2592	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1918		2593
1919	# remove register_script_function callbacks
1920	# TODO
1921
1922	# unload cf.pm "a bit"	2594	warn "unloading cf.pm \"a bit\"";
1923	delete $INC{"cf.pm"};	2595	delete $INC{"cf.pm"};
1924		2596
1925	# don't, removes xs symbols, too,	2597	# don't, removes xs symbols, too,
1926	# and global variables created in xs	2598	# and global variables created in xs
1927	#Symbol::delete_package __PACKAGE__;	2599	#Symbol::delete_package __PACKAGE__;
1928		2600
1929	# reload cf.pm	2601	warn "unload completed, starting to reload now";
		2602
1930	warn "reloading cf.pm";	2603	warn "reloading cf.pm";
1931	require cf;	2604	require cf;
1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2605	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1933		2606
1934	# load config and database again	2607	warn "loading config and database again";
1935	cf::cfg_load;	2608	cf::cfg_load;
1936	cf::db_load;
1937		2609
1938	# load extensions
1939	warn "load extensions";	2610	warn "loading extensions";
1940	cf::load_extensions;	2611	cf::load_extensions;
1941		2612
1942	# reattach attachments to objects	2613	warn "reattaching attachments to objects/players";
1943	warn "reattach";	2614	_global_reattach; # objects, sockets
1944	_global_reattach;	2615	warn "reattaching attachments to maps";
1945	};	2616	reattach $_ for values %MAP;
		2617	warn "reattaching attachments to players";
		2618	reattach $_ for values %PLAYER;
1946		2619
1947	if ($@) {	2620	warn "loading reloadable resources";
		2621	reload_resources;
		2622
		2623	warn "leaving sync_job";
		2624
		2625	1
		2626	} or do {
1948	warn $@;	2627	warn $@;
1949	warn "error while reloading, exiting.";	2628	warn "error while reloading, exiting.";
1950	exit 1;	2629	exit 1;
1951	}	2630	};
1952		2631
1953	warn "reloaded successfully";	2632	warn "reloaded";
1954	};	2633	};
1955		2634
1956	#############################################################################	2635	our $RELOAD_WATCHER; # used only during reload
1957
1958	unless ($LINK_MAP) {
1959	$LINK_MAP = cf::map::new;
1960
1961	$LINK_MAP->width (41);
1962	$LINK_MAP->height (41);
1963	$LINK_MAP->alloc;
1964	$LINK_MAP->path ("{link}");
1965	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1966	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1967
1968	# dirty hack because... archetypes are not yet loaded
1969	Event->timer (
1970	after => 2,
1971	cb => sub {
1972	$_[0]->w->cancel;
1973
1974	# provide some exits "home"
1975	my $exit = cf::object::new "exit";
1976
1977	$exit->slaying ($EMERGENCY_POSITION->[0]);
1978	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1979	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1980
1981	$LINK_MAP->insert ($exit->clone, 19, 19);
1982	$LINK_MAP->insert ($exit->clone, 19, 20);
1983	$LINK_MAP->insert ($exit->clone, 19, 21);
1984	$LINK_MAP->insert ($exit->clone, 20, 19);
1985	$LINK_MAP->insert ($exit->clone, 20, 21);
1986	$LINK_MAP->insert ($exit->clone, 21, 19);
1987	$LINK_MAP->insert ($exit->clone, 21, 20);
1988	$LINK_MAP->insert ($exit->clone, 21, 21);
1989
1990	$exit->destroy;
1991	});
1992
1993	$LINK_MAP->{deny_save} = 1;
1994	$LINK_MAP->{deny_reset} = 1;
1995
1996	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1997	}
1998
1999	register "<global>", __PACKAGE__;
2000		2636
2001	register_command "reload" => sub {	2637	register_command "reload" => sub {
2002	my ($who, $arg) = @_;	2638	my ($who, $arg) = @_;
2003		2639
2004	if ($who->flag (FLAG_WIZ)) {	2640	if ($who->flag (FLAG_WIZ)) {
2005	$who->message ("start of reload.");	2641	$who->message ("reloading server.");
		2642
		2643	# doing reload synchronously and two reloads happen back-to-back,
		2644	# coro crashes during coro_state_free->destroy here.
		2645
		2646	$RELOAD_WATCHER ||= Event->timer (
		2647	reentrant => 0,
		2648	after => 0,
		2649	data => WF_AUTOCANCEL,
		2650	cb => sub {
2006	reload;	2651	reload;
2007	$who->message ("end of reload.");	2652	undef $RELOAD_WATCHER;
		2653	},
		2654	);
2008	}	2655	}
2009	};	2656	};
2010		2657
2011	unshift @INC, $LIBDIR;	2658	unshift @INC, $LIBDIR;
		2659
		2660	my $bug_warning = 0;
		2661
		2662	our @WAIT_FOR_TICK;
		2663	our @WAIT_FOR_TICK_BEGIN;
		2664
		2665	sub wait_for_tick {
		2666	return unless $TICK_WATCHER->is_active;
		2667	return if $Coro::current == $Coro::main;
		2668
		2669	my $signal = new Coro::Signal;
		2670	push @WAIT_FOR_TICK, $signal;
		2671	$signal->wait;
		2672	}
		2673
		2674	sub wait_for_tick_begin {
		2675	return unless $TICK_WATCHER->is_active;
		2676	return if $Coro::current == $Coro::main;
		2677
		2678	my $signal = new Coro::Signal;
		2679	push @WAIT_FOR_TICK_BEGIN, $signal;
		2680	$signal->wait;
		2681	}
2012		2682
2013	$TICK_WATCHER = Event->timer (	2683	$TICK_WATCHER = Event->timer (
2014	reentrant => 0,	2684	reentrant => 0,
		2685	parked => 1,
2015	prio => 0,	2686	prio => 0,
2016	at => $NEXT_TICK || $TICK,	2687	at => $NEXT_TICK || $TICK,
2017	data => WF_AUTOCANCEL,	2688	data => WF_AUTOCANCEL,
2018	cb => sub {	2689	cb => sub {
2019	unless ($FREEZE) {	2690	if ($Coro::current != $Coro::main) {
		2691	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2692	unless ++$bug_warning > 10;
		2693	return;
		2694	}
		2695
		2696	$NOW = Event::time;
		2697
2020	cf::server_tick; # one server iteration	2698	cf::server_tick; # one server iteration
2021	$RUNTIME += $TICK;	2699	$RUNTIME += $TICK;
2022	}
2023
2024	$NEXT_TICK += $TICK;	2700	$NEXT_TICK += $TICK;
		2701
		2702	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2703	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2704	Coro::async_pool {
		2705	write_runtime
		2706	or warn "ERROR: unable to write runtime file: $!";
		2707	};
		2708	}
		2709
		2710	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2711	$sig->send;
		2712	}
		2713	while (my $sig = shift @WAIT_FOR_TICK) {
		2714	$sig->send;
		2715	}
		2716
		2717	# my $AFTER = Event::time;
		2718	# warn $AFTER - $NOW;#d#
2025		2719
2026	# if we are delayed by four ticks or more, skip them all	2720	# if we are delayed by four ticks or more, skip them all
2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2721	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2028		2722
2029	$TICK_WATCHER->at ($NEXT_TICK);	2723	$TICK_WATCHER->at ($NEXT_TICK);
2030	$TICK_WATCHER->start;	2724	$TICK_WATCHER->start;
2031	},	2725	},
2032	);	2726	);
2033		2727
		2728	{
2034	IO::AIO::max_poll_time $TICK * 0.2;	2729	BDB::max_poll_time $TICK * 0.1;
2035		2730	$BDB_POLL_WATCHER = Event->io (
2036	Event->io (	2731	reentrant => 0,
2037	fd => IO::AIO::poll_fileno,	2732	fd => BDB::poll_fileno,
2038	poll => 'r',	2733	poll => 'r',
2039	prio => 5,	2734	prio => 0,
2040	data => WF_AUTOCANCEL,
2041	cb => \&IO::AIO::poll_cb,
2042	);
2043
2044	Event->timer (
2045	data => WF_AUTOCANCEL,	2735	data => WF_AUTOCANCEL,
2046	after => 0,	2736	cb => \&BDB::poll_cb,
2047	interval => 10,	2737	);
2048	cb => sub {	2738	BDB::min_parallel 8;
2049	(Coro::unblock_sub {	2739
2050	write_runtime	2740	BDB::set_sync_prepare {
2051	or warn "ERROR: unable to write runtime file: $!";	2741	my $status;
		2742	my $current = $Coro::current;
		2743	(
		2744	sub {
		2745	$status = $!;
		2746	$current->ready; undef $current;
		2747	},
		2748	sub {
		2749	Coro::schedule while defined $current;
		2750	$! = $status;
		2751	},
		2752	)
		2753	};
		2754
		2755	unless ($DB_ENV) {
		2756	$DB_ENV = BDB::db_env_create;
		2757
		2758	cf::sync_job {
		2759	eval {
		2760	BDB::db_env_open
		2761	$DB_ENV,
		2762	$BDB_ENV_DIR,
		2763	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2764	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2765	0666;
		2766
		2767	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2768
		2769	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2770	$DB_ENV->set_lk_detect;
		2771	};
		2772
		2773	cf::cleanup "db_env_open(db): $@" if $@;
2052	})->();	2774	};
2053	},	2775	}
2054	);	2776	}
		2777
		2778	{
		2779	IO::AIO::min_parallel 8;
		2780
		2781	undef $Coro::AIO::WATCHER;
		2782	IO::AIO::max_poll_time $TICK * 0.1;
		2783	$AIO_POLL_WATCHER = Event->io (
		2784	reentrant => 0,
		2785	data => WF_AUTOCANCEL,
		2786	fd => IO::AIO::poll_fileno,
		2787	poll => 'r',
		2788	prio => 6,
		2789	cb => \&IO::AIO::poll_cb,
		2790	);
		2791	}
		2792
		2793	END { cf::emergency_save }
2055		2794
2056	1	2795	1
2057		2796

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