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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.109 by root, Sun Dec 31 22:23:12 2006 UTC vs.
Revision 1.263 by root, Sat May 5 05:40:27 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		94
58	binmode STDOUT;	95	binmode STDOUT;
59	binmode STDERR;	96	binmode STDERR;
60		97
61	# read virtual server time, if available	98	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
66	}	103	}
67		104
68	mkdir cf::localdir;	105	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		107
74	# a special map that is always available	108	our $EMERGENCY_POSITION;
75	our $LINK_MAP;	109
		110	sub cf::map::normalise;
76		111
77	#############################################################################	112	#############################################################################
78		113
79	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
80		115
…		…
87	=item $cf::RUNTIME	122	=item $cf::RUNTIME
88		123
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	124	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	125	every server tick.
91		126
92	=item $cf::LIBDIR	127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		130
94	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		133	unique-items directory, player file directory, random maps directory and
		134	database environment.
96		135
97	=item $cf::NOW	136	=item $cf::NOW
98		137
99	The time of the last (current) server tick.	138	The time of the last (current) server tick.
100		139
…		…
104		143
105	=item %cf::CFG	144	=item %cf::CFG
106		145
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	147	from wherever your confdir points to.
		148
		149	=item cf::wait_for_tick, cf::wait_for_tick_begin
		150
		151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		152	returns directly I<after> the tick processing (and consequently, can only wake one process
		153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
109		154
110	=back	155	=back
111		156
112	=cut	157	=cut
113		158
114	BEGIN {	159	BEGIN {
115	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	161	my $msg = join "", @_;
117	utf8::encode $msg;
118		162
119	$msg .= "\n"	163	$msg .= "\n"
120	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
121		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
123	};	170	};
124	}	171	}
125		172
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		192
146	$Event::DIED = sub {	193	$Event::DIED = sub {
147	warn "error in event callback: @_";	194	warn "error in event callback: @_";
148	};	195	};
149		196
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
155		198
156	=over 4	199	=over 4
157		200
158	=cut	201	=item dumpval $ref
159		202
		203	=cut
		204
		205	sub dumpval {
		206	eval {
		207	local $SIG{__DIE__};
		208	my $d;
		209	if (1) {
		210	$d = new Data::Dumper([$_[0]], ["*var"]);
		211	$d->Terse(1);
		212	$d->Indent(2);
		213	$d->Quotekeys(0);
		214	$d->Useqq(1);
		215	#$d->Bless(...);
		216	$d->Seen($_[1]) if @_ > 1;
		217	$d = $d->Dump();
		218	}
		219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		220	$d
		221	} || "[unable to dump $_[0]: '$@']";
		222	}
		223
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
161		225
162	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
163		227
164	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
165		229
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
174		231
175	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
176		233
177	=cut	234	=item cf::lock_wait $string
178		235
179	sub to_json($) {	236	Wait until the given lock is available. See cf::lock_acquire.
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	237
181	JSON::Syck::Dump $_[0]	238	=item my $lock = cf::lock_acquire $string
		239
		240	Wait until the given lock is available and then acquires it and returns
		241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		242	for example when the coroutine gets canceled), the lock is automatically
		243	returned.
		244
		245	Lock names should begin with a unique identifier (for example, cf::map::find
		246	uses map_find and cf::map::load uses map_load).
		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
		251
		252	=cut
		253
		254	our %LOCK;
		255
		256	sub lock_wait($) {
		257	my ($key) = @_;
		258
		259	# wait for lock, if any
		260	while ($LOCK{$key}) {
		261	push @{ $LOCK{$key} }, $Coro::current;
		262	Coro::schedule;
		263	}
182	}	264	}
		265
		266	sub lock_acquire($) {
		267	my ($key) = @_;
		268
		269	# wait, to be sure we are not locked
		270	lock_wait $key;
		271
		272	$LOCK{$key} = [];
		273
		274	Coro::guard {
		275	# wake up all waiters, to be on the safe side
		276	$_->ready for @{ delete $LOCK{$key} };
		277	}
		278	}
		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
		286	sub freeze_mainloop {
		287	return unless $TICK_WATCHER->is_active;
		288
		289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
		292	$TICK_WATCHER->stop;
		293	$guard
		294	}
		295
		296	=item cf::async { BLOCK }
		297
		298	Currently the same as Coro::async_pool, meaning you cannot use
		299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
		301
		302	=cut
		303
		304	BEGIN { *async = \&Coro::async_pool }
183		305
184	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
185		307
186	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
187	always able to handle events or runnable, as crossfire+ is only partly	309	always able to handle events or runnable, as crossfire+ is only partly
…		…
195	=cut	317	=cut
196		318
197	sub sync_job(&) {	319	sub sync_job(&) {
198	my ($job) = @_;	320	my ($job) = @_;
199		321
200	my $busy = 1;
201	my @res;
202
203	# TODO: use suspend/resume instead
204	local $FREEZE = 1;
205
206	my $coro = Coro::async {
207	@res = eval { $job->() };
208	warn $@ if $@;
209	undef $busy;
210	};
211
212	if ($Coro::current == $Coro::main) {	322	if ($Coro::current == $Coro::main) {
		323	# this is the main coro, too bad, we have to block
		324	# till the operation succeeds, freezing the server :/
		325
		326	# TODO: use suspend/resume instead
		327	# (but this is cancel-safe)
		328	my $freeze_guard = freeze_mainloop;
		329
		330	my $busy = 1;
		331	my @res;
		332
		333	(async {
		334	@res = eval { $job->() };
		335	warn $@ if $@;
		336	undef $busy;
213	$coro->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
		338
214	while ($busy) {	339	while ($busy) {
215	Coro::cede_notself;	340	Coro::cede or Event::one_event;
216	Event::one_event unless Coro::nready;
217	}	341	}
		342
		343	wantarray ? @res : $res[0]
218	} else {	344	} else {
219	$coro->join;	345	# we are in another coroutine, how wonderful, everything just works
		346
		347	$job->()
220	}	348	}
221
222	wantarray ? @res : $res[0]
223	}	349	}
224		350
225	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
226		352
227	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
228	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
229		355
230	=cut	356	=cut
231		357
232	sub coro(&) {	358	sub async_ext(&) {
233	my $cb = shift;	359	my $cb = shift;
234		360
235	my $coro; $coro = async {	361	my $coro = &Coro::async ($cb);
236	eval {
237	$cb->();
238	};
239	warn $@ if $@;
240	};
241		362
242	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
243	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
244	});	365	});
245	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
246		367
247	$coro	368	$coro
248	}	369	}
249		370
250	sub write_runtime {	371	sub write_runtime {
251	my $runtime = cf::localdir . "/runtime";	372	my $guard = cf::lock_acquire "write_runtime";
252		373
		374	my $runtime = "$LOCALDIR/runtime";
		375
		376	warn "starting to write runtime...\n";#d#
253	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	377	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
254	or return;	378	or return;
255		379
256	my $value = $cf::RUNTIME;	380	my $value = $cf::RUNTIME + 90 + 10;
		381	# 10 is the runtime save interval, for a monotonic clock
		382	# 60 allows for the watchdog to kill the server.
		383
257	(aio_write $fh, 0, (length $value), $value, 0) <= 0	384	(aio_write $fh, 0, (length $value), $value, 0) <= 0
258	and return;	385	and return;
259		386
		387	# always fsync - this file is important
260	aio_fsync $fh	388	aio_fsync $fh
261	and return;	389	and return;
262		390
263	close $fh	391	close $fh
264	or return;	392	or return;
265		393
266	aio_rename "$runtime~", $runtime	394	aio_rename "$runtime~", $runtime
267	and return;	395	and return;
268		396
		397	warn "... done writing runtime.\n";#d#
		398
269	1	399	1
270	}	400	}
271		401
		402	=item cf::datalog type => key => value, ...
		403
		404	Log a datalog packet of the given type with the given key-value pairs.
		405
		406	=cut
		407
		408	sub datalog($@) {
		409	my ($type, %kv) = @_;
		410	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		411	}
		412
272	=back	413	=back
273		414
274	=cut	415	=cut
275
276	#############################################################################
277
278	package cf::path;
279
280	sub new {
281	my ($class, $path, $base) = @_;
282
283	my $self = bless { }, $class;
284
285	if ($path =~ s{^\?random/}{}) {
286	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
287	$self->{random} = cf::from_json $data;
288	} else {
289	if ($path =~ s{^~([^/]+)?}{}) {
290	$self->{user_rel} = 1;
291
292	if (defined $1) {
293	$self->{user} = $1;
294	} elsif ($base =~ m{^~([^/]+)/}) {
295	$self->{user} = $1;
296	} else {
297	warn "cannot resolve user-relative path without user <$path,$base>\n";
298	}
299	} elsif ($path =~ /^\//) {
300	# already absolute
301	} else {
302	$base =~ s{[^/]+/?$}{};
303	return $class->new ("$base/$path");
304	}
305
306	for ($path) {
307	redo if s{/\.?/}{/};
308	redo if s{/[^/]+/\.\./}{/};
309	}
310	}
311
312	$self->{path} = $path;
313
314	$self
315	}
316
317	# the name / primary key / in-game path
318	sub as_string {
319	my ($self) = @_;
320
321	$self->{user_rel} ? "~$self->{user}$self->{path}"
322	: $self->{random} ? "?random/$self->{path}"
323	: $self->{path}
324	}
325
326	# the displayed name, this is a one way mapping
327	sub visible_name {
328	my ($self) = @_;
329
330	# if (my $rmp = $self->{random}) {
331	# # todo: be more intelligent about this
332	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
333	# } else {
334	$self->as_string
335	# }
336	}
337
338	# escape the /'s in the path
339	sub _escaped_path {
340	# ∕ is U+2215
341	(my $path = $_[0]{path}) =~ s/\//∕/g;
342	$path
343	}
344
345	# the original (read-only) location
346	sub load_path {
347	my ($self) = @_;
348
349	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
350	}
351
352	# the temporary/swap location
353	sub save_path {
354	my ($self) = @_;
355
356	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
357	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
358	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
359	}
360
361	# the unique path, might be eq to save_path
362	sub uniq_path {
363	my ($self) = @_;
364
365	$self->{user_rel} || $self->{random}
366	? undef
367	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
368	}
369
370	# return random map parameters, or undef
371	sub random_map_params {
372	my ($self) = @_;
373
374	$self->{random}
375	}
376
377	# this is somewhat ugly, but style maps do need special treatment
378	sub is_style_map {
379	$_[0]{path} =~ m{^/styles/}
380	}
381
382	package cf;
383		416
384	#############################################################################	417	#############################################################################
385		418
386	=head2 ATTACHABLE OBJECTS	419	=head2 ATTACHABLE OBJECTS
387		420
…		…
513	our @CB_TYPE = (); # registry for type (cf-object class) based events	546	our @CB_TYPE = (); # registry for type (cf-object class) based events
514	our @CB_MAP = ();	547	our @CB_MAP = ();
515		548
516	my %attachment;	549	my %attachment;
517		550
		551	sub cf::attachable::thawer_merge {
		552	# simply override everything except _meta
		553	local $_[0]{_meta};
		554	%{$_[0]} = %{$_[1]};
		555	}
		556
518	sub _attach_cb($$$$) {	557	sub _attach_cb($$$$) {
519	my ($registry, $event, $prio, $cb) = @_;	558	my ($registry, $event, $prio, $cb) = @_;
520		559
521	use sort 'stable';	560	use sort 'stable';
522		561
…		…
693	# object support	732	# object support
694		733
695	sub reattach {	734	sub reattach {
696	# basically do the same as instantiate, without calling instantiate	735	# basically do the same as instantiate, without calling instantiate
697	my ($obj) = @_;	736	my ($obj) = @_;
		737
		738	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
698		739
699	my $registry = $obj->registry;	740	my $registry = $obj->registry;
700		741
701	@$registry = ();	742	@$registry = ();
702		743
…		…
749	$filename, length $$rdata, scalar @$objs;	790	$filename, length $$rdata, scalar @$objs;
750		791
751	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	792	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
752	chmod SAVE_MODE, $fh;	793	chmod SAVE_MODE, $fh;
753	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	794	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
754	aio_fsync $fh;	795	aio_fsync $fh if $cf::USE_FSYNC;
755	close $fh;	796	close $fh;
756		797
757	if (@$objs) {	798	if (@$objs) {
758	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	799	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
759	chmod SAVE_MODE, $fh;	800	chmod SAVE_MODE, $fh;
760	my $data = Storable::nfreeze { version => 1, objs => $objs };	801	my $data = Storable::nfreeze { version => 1, objs => $objs };
761	aio_write $fh, 0, (length $data), $data, 0;	802	aio_write $fh, 0, (length $data), $data, 0;
762	aio_fsync $fh;	803	aio_fsync $fh if $cf::USE_FSYNC;
763	close $fh;	804	close $fh;
764	aio_rename "$filename.pst~", "$filename.pst";	805	aio_rename "$filename.pst~", "$filename.pst";
765	}	806	}
766	} else {	807	} else {
767	aio_unlink "$filename.pst";	808	aio_unlink "$filename.pst";
…		…
795	or return;	836	or return;
796		837
797	unless (aio_stat "$filename.pst") {	838	unless (aio_stat "$filename.pst") {
798	(aio_load "$filename.pst", $av) >= 0	839	(aio_load "$filename.pst", $av) >= 0
799	or return;	840	or return;
800	$av = eval { (Storable::thaw <$av>)->{objs} };	841	$av = eval { (Storable::thaw $av)->{objs} };
801	}	842	}
802		843
		844	warn sprintf "loading %s (%d)\n",
		845	$filename, length $data, scalar @{$av || []};#d#
803	return ($data, $av);	846	return ($data, $av);
804	}	847	}
805		848
806	#############################################################################	849	#############################################################################
807	# command handling &c	850	# command handling &c
…		…
832	=cut	875	=cut
833		876
834	sub register_extcmd {	877	sub register_extcmd {
835	my ($name, $cb) = @_;	878	my ($name, $cb) = @_;
836		879
837	my $caller = caller;
838	#warn "registering extcmd '$name' to '$caller'";
839
840	$EXTCMD{$name} = [$cb, $caller];	880	$EXTCMD{$name} = $cb;
841	}	881	}
842		882
843	cf::player->attach (	883	cf::player->attach (
844	on_command => sub {	884	on_command => sub {
845	my ($pl, $name, $params) = @_;	885	my ($pl, $name, $params) = @_;
…		…
858		898
859	my $msg = eval { from_json $buf };	899	my $msg = eval { from_json $buf };
860		900
861	if (ref $msg) {	901	if (ref $msg) {
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	902	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
863	if (my %reply = $cb->[0]->($pl, $msg)) {	903	if (my %reply = $cb->($pl, $msg)) {
864	$pl->ext_reply ($msg->{msgid}, %reply);	904	$pl->ext_reply ($msg->{msgid}, %reply);
865	}	905	}
866	}	906	}
867	} else {	907	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	908	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
870		910
871	cf::override;	911	cf::override;
872	},	912	},
873	);	913	);
874		914
875	sub register {
876	my ($base, $pkg) = @_;
877
878	#TODO
879	}
880
881	sub load_extension {	915	sub load_extension {
882	my ($path) = @_;	916	my ($path) = @_;
883		917
884	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	918	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
885	my $base = $1;	919	my $base = $1;
886	my $pkg = $1;	920	my $pkg = $1;
887	$pkg =~ s/[^[:word:]]/_/g;	921	$pkg =~ s/[^[:word:]]/_/g;
888	$pkg = "ext::$pkg";	922	$pkg = "ext::$pkg";
889		923
890	warn "loading '$path' into '$pkg'\n";	924	warn "... loading '$path' into '$pkg'\n";
891		925
892	open my $fh, "<:utf8", $path	926	open my $fh, "<:utf8", $path
893	or die "$path: $!";	927	or die "$path: $!";
894		928
895	my $source =	929	my $source =
896	"package $pkg; use strict; use utf8;\n"	930	"package $pkg; use strict; use utf8;\n"
897	. "#line 1 \"$path\"\n{\n"	931	. "#line 1 \"$path\"\n{\n"
898	. (do { local $/; <$fh> })	932	. (do { local $/; <$fh> })
899	. "\n};\n1";	933	. "\n};\n1";
900		934
901	eval $source	935	unless (eval $source) {
902	or die $@ ? "$path: $@\n"	936	my $msg = $@ ? "$path: $@\n"
903	: "extension disabled.\n";	937	: "extension disabled.\n";
904		938	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
905	push @exts, $pkg;	939	warn $@;
906	$ext_pkg{$base} = $pkg;	940	warn "mandatory extension failed to load, exiting.\n";
907		941	exit 1;
908	# no strict 'refs';	942	}
909	# @{"$pkg\::ISA"} = ext::;	943	die $@;
910
911	register $base, $pkg;
912	}
913
914	sub unload_extension {
915	my ($pkg) = @_;
916
917	warn "removing extension $pkg\n";
918
919	# remove hooks
920	#TODO
921	# for my $idx (0 .. $#PLUGIN_EVENT) {
922	# delete $hook[$idx]{$pkg};
923	# }	944	}
924		945
925	# remove commands	946	push @EXTS, $pkg;
926	for my $name (keys %COMMAND) {
927	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
928
929	if (@cb) {
930	$COMMAND{$name} = \@cb;
931	} else {
932	delete $COMMAND{$name};
933	}
934	}
935
936	# remove extcmds
937	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
938	delete $EXTCMD{$name};
939	}
940
941	if (my $cb = $pkg->can ("unload")) {
942	eval {
943	$cb->($pkg);
944	1
945	} or warn "$pkg unloaded, but with errors: $@";
946	}
947
948	Symbol::delete_package $pkg;
949	}	947	}
950		948
951	sub load_extensions {	949	sub load_extensions {
952	for my $ext (<$LIBDIR/*.ext>) {	950	for my $ext (<$LIBDIR/*.ext>) {
953	next unless -r $ext;	951	next unless -r $ext;
…		…
957	} or warn "$ext not loaded: $@";	955	} or warn "$ext not loaded: $@";
958	}	956	}
959	}	957	}
960		958
961	#############################################################################	959	#############################################################################
962	# load/save/clean perl data associated with a map
963		960
964	*cf::mapsupport::on_clean = sub {	961	=head2 CORE EXTENSIONS
		962
		963	Functions and methods that extend core crossfire objects.
		964
		965	=cut
		966
		967	package cf::player;
		968
		969	use Coro::AIO;
		970
		971	=head3 cf::player
		972
		973	=over 4
		974
		975	=item cf::player::find $login
		976
		977	Returns the given player object, loading it if necessary (might block).
		978
		979	=cut
		980
		981	sub playerdir($) {
		982	"$PLAYERDIR/"
		983	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		984	}
		985
		986	sub path($) {
		987	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		988
		989	(playerdir $login) . "/playerdata"
		990	}
		991
		992	sub find_active($) {
		993	$cf::PLAYER{$_[0]}
		994	and $cf::PLAYER{$_[0]}->active
		995	and $cf::PLAYER{$_[0]}
		996	}
		997
		998	sub exists($) {
		999	my ($login) = @_;
		1000
		1001	$cf::PLAYER{$login}
		1002	or cf::sync_job { !aio_stat path $login }
		1003	}
		1004
		1005	sub find($) {
		1006	return $cf::PLAYER{$_[0]} || do {
		1007	my $login = $_[0];
		1008
		1009	my $guard = cf::lock_acquire "user_find:$login";
		1010
		1011	$cf::PLAYER{$_[0]} || do {
		1012	# rename old playerfiles to new ones
		1013	#TODO: remove when no longer required
		1014	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1015	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1016	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1017	aio_unlink +(playerdir $login) . "/$login.pl";
		1018
		1019	my $pl = load_pl path $login
		1020	or return;
		1021	$cf::PLAYER{$login} = $pl
		1022	}
		1023	}
		1024	}
		1025
		1026	sub save($) {
		1027	my ($pl) = @_;
		1028
		1029	return if $pl->{deny_save};
		1030
		1031	my $path = path $pl;
		1032	my $guard = cf::lock_acquire "user_save:$path";
		1033
		1034	return if $pl->{deny_save};
		1035
		1036	aio_mkdir playerdir $pl, 0770;
		1037	$pl->{last_save} = $cf::RUNTIME;
		1038
		1039	$pl->save_pl ($path);
		1040	Coro::cede;
		1041	}
		1042
		1043	sub new($) {
		1044	my ($login) = @_;
		1045
		1046	my $self = create;
		1047
		1048	$self->ob->name ($login);
		1049	$self->{deny_save} = 1;
		1050
		1051	$cf::PLAYER{$login} = $self;
		1052
		1053	$self
		1054	}
		1055
		1056	=item $pl->quit_character
		1057
		1058	Nukes the player without looking back. If logged in, the connection will
		1059	be destroyed. May block for a long time.
		1060
		1061	=cut
		1062
		1063	sub quit_character {
		1064	my ($pl) = @_;
		1065
		1066	my $name = $pl->ob->name;
		1067
		1068	$pl->{deny_save} = 1;
		1069	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1070
		1071	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1072	$pl->deactivate;
		1073	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1074	$pl->ns->destroy if $pl->ns;
		1075
		1076	my $path = playerdir $pl;
		1077	my $temp = "$path~$cf::RUNTIME~deleting~";
		1078	aio_rename $path, $temp;
		1079	delete $cf::PLAYER{$pl->ob->name};
		1080	$pl->destroy;
		1081
		1082	my $prefix = qr<^~\Q$name\E/>;
		1083
		1084	# nuke player maps
		1085	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1086
		1087	IO::AIO::aio_rmtree $temp;
		1088	}
		1089
		1090	=item $pl->kick
		1091
		1092	Kicks a player out of the game. This destroys the connection.
		1093
		1094	=cut
		1095
		1096	sub kick {
		1097	my ($pl, $kicker) = @_;
		1098
		1099	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1100	$pl->killer ("kicked");
		1101	$pl->ns->destroy;
		1102	}
		1103
		1104	=item cf::player::list_logins
		1105
		1106	Returns am arrayref of all valid playernames in the system, can take a
		1107	while and may block, so not sync_job-capable, ever.
		1108
		1109	=cut
		1110
		1111	sub list_logins {
		1112	my $dirs = aio_readdir $PLAYERDIR
		1113	or return [];
		1114
		1115	my @logins;
		1116
		1117	for my $login (@$dirs) {
		1118	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1119	aio_read $fh, 0, 512, my $buf, 0 or next;
		1120	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1121
		1122	utf8::decode $login;
		1123	push @logins, $login;
		1124	}
		1125
		1126	\@logins
		1127	}
		1128
		1129	=item $player->maps
		1130
		1131	Returns an arrayref of map paths that are private for this
		1132	player. May block.
		1133
		1134	=cut
		1135
		1136	sub maps($) {
		1137	my ($pl) = @_;
		1138
		1139	$pl = ref $pl ? $pl->ob->name : $pl;
		1140
		1141	my $files = aio_readdir playerdir $pl
		1142	or return;
		1143
		1144	my @paths;
		1145
		1146	for (@$files) {
		1147	utf8::decode $_;
		1148	next if /\.(?:pl|pst)$/;
		1149	next unless /^$PATH_SEP/o;
		1150
		1151	push @paths, cf::map::normalise "~$pl/$_";
		1152	}
		1153
		1154	\@paths
		1155	}
		1156
		1157	=item $player->ext_reply ($msgid, %msg)
		1158
		1159	Sends an ext reply to the player.
		1160
		1161	=cut
		1162
		1163	sub ext_reply($$%) {
		1164	my ($self, $id, %msg) = @_;
		1165
		1166	$msg{msgid} = $id;
		1167
		1168	$self->send ("ext " . cf::to_json \%msg);
		1169	}
		1170
		1171	=item $player->ext_event ($type, %msg)
		1172
		1173	Sends an ext event to the client.
		1174
		1175	=cut
		1176
		1177	sub ext_event($$%) {
		1178	my ($self, $type, %msg) = @_;
		1179
		1180	$self->ns->ext_event ($type, %msg);
		1181	}
		1182
		1183	=head3 cf::region
		1184
		1185	=over 4
		1186
		1187	=cut
		1188
		1189	package cf::region;
		1190
		1191	=item cf::region::find_by_path $path
		1192
		1193	Tries to decuce the probable region for a map knowing only its path.
		1194
		1195	=cut
		1196
		1197	sub find_by_path($) {
		1198	my ($path) = @_;
		1199
		1200	my ($match, $specificity);
		1201
		1202	for my $region (list) {
		1203	if ($region->match && $path =~ $region->match) {
		1204	($match, $specificity) = ($region, $region->specificity)
		1205	if $region->specificity > $specificity;
		1206	}
		1207	}
		1208
		1209	$match
		1210	}
		1211
		1212	=back
		1213
		1214	=head3 cf::map
		1215
		1216	=over 4
		1217
		1218	=cut
		1219
		1220	package cf::map;
		1221
		1222	use Fcntl;
		1223	use Coro::AIO;
		1224
		1225	use overload
		1226	'""' => \&as_string,
		1227	fallback => 1;
		1228
		1229	our $MAX_RESET = 3600;
		1230	our $DEFAULT_RESET = 3000;
		1231
		1232	sub generate_random_map {
		1233	my ($self, $rmp) = @_;
		1234	# mit "rum" bekleckern, nicht
		1235	$self->_create_random_map (
		1236	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1237	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1238	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1239	$rmp->{exit_on_final_map},
		1240	$rmp->{xsize}, $rmp->{ysize},
		1241	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1242	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1243	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1244	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1245	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1246	(cf::region::find $rmp->{region}), $rmp->{custom}
		1247	)
		1248	}
		1249
		1250	=item cf::map->register ($regex, $prio)
		1251
		1252	Register a handler for the map path matching the given regex at the
		1253	givne priority (higher is better, built-in handlers have priority 0, the
		1254	default).
		1255
		1256	=cut
		1257
		1258	sub register {
		1259	my (undef, $regex, $prio) = @_;
		1260	my $pkg = caller;
		1261
		1262	no strict;
		1263	push @{"$pkg\::ISA"}, __PACKAGE__;
		1264
		1265	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1266	}
		1267
		1268	# also paths starting with '/'
		1269	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1270
		1271	sub thawer_merge {
		1272	my ($self, $merge) = @_;
		1273
		1274	# we have to keep some variables in memory intact
		1275	local $self->{path};
		1276	local $self->{load_path};
		1277	local $self->{deny_save};
		1278	local $self->{deny_reset};
		1279
		1280	$self->SUPER::thawer_merge ($merge);
		1281	}
		1282
		1283	sub normalise {
		1284	my ($path, $base) = @_;
		1285
		1286	$path = "$path"; # make sure its a string
		1287
		1288	$path =~ s/\.map$//;
		1289
		1290	# map plan:
		1291	#
		1292	# /! non-realised random map exit (special hack!)
		1293	# {... are special paths that are not being touched
		1294	# ?xxx/... are special absolute paths
		1295	# ?random/... random maps
		1296	# /... normal maps
		1297	# ~user/... per-player map of a specific user
		1298
		1299	$path =~ s/$PATH_SEP/\//go;
		1300
		1301	# treat it as relative path if it starts with
		1302	# something that looks reasonable
		1303	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1304	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1305
		1306	$base =~ s{[^/]+/?$}{};
		1307	$path = "$base/$path";
		1308	}
		1309
		1310	for ($path) {
		1311	redo if s{//}{/};
		1312	redo if s{/\.?/}{/};
		1313	redo if s{/[^/]+/\.\./}{/};
		1314	}
		1315
		1316	$path
		1317	}
		1318
		1319	sub new_from_path {
		1320	my (undef, $path, $base) = @_;
		1321
		1322	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1323
		1324	$path = normalise $path, $base;
		1325
		1326	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1327	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1328	my $self = bless cf::map::new, $pkg;
		1329	$self->{path} = $path; $self->path ($path);
		1330	$self->init; # pass $1 etc.
		1331	return $self;
		1332	}
		1333	}
		1334
		1335	Carp::carp "unable to resolve path '$path' (base '$base').";
		1336	()
		1337	}
		1338
		1339	sub init {
		1340	my ($self) = @_;
		1341
		1342	$self
		1343	}
		1344
		1345	sub as_string {
		1346	my ($self) = @_;
		1347
		1348	"$self->{path}"
		1349	}
		1350
		1351	# the displayed name, this is a one way mapping
		1352	sub visible_name {
		1353	&as_string
		1354	}
		1355
		1356	# the original (read-only) location
		1357	sub load_path {
		1358	my ($self) = @_;
		1359
		1360	"$MAPDIR/$self->{path}.map"
		1361	}
		1362
		1363	# the temporary/swap location
		1364	sub save_path {
		1365	my ($self) = @_;
		1366
		1367	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1368	"$TMPDIR/$path.map"
		1369	}
		1370
		1371	# the unique path, undef == no special unique path
		1372	sub uniq_path {
		1373	my ($self) = @_;
		1374
		1375	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1376	"$UNIQUEDIR/$path"
		1377	}
		1378
		1379	# and all this just because we cannot iterate over
		1380	# all maps in C++...
		1381	sub change_all_map_light {
		1382	my ($change) = @_;
		1383
		1384	$_->change_map_light ($change)
		1385	for grep $_->outdoor, values %cf::MAP;
		1386	}
		1387
		1388	sub unlink_save {
		1389	my ($self) = @_;
		1390
		1391	utf8::encode (my $save = $self->save_path);
		1392	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1393	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1394	}
		1395
		1396	sub load_header_from($) {
		1397	my ($self, $path) = @_;
		1398
		1399	utf8::encode $path;
		1400	#aio_open $path, O_RDONLY, 0
		1401	# or return;
		1402
		1403	$self->_load_header ($path)
		1404	or return;
		1405
		1406	$self->{load_path} = $path;
		1407
		1408	1
		1409	}
		1410
		1411	sub load_header_orig {
		1412	my ($self) = @_;
		1413
		1414	$self->load_header_from ($self->load_path)
		1415	}
		1416
		1417	sub load_header_temp {
		1418	my ($self) = @_;
		1419
		1420	$self->load_header_from ($self->save_path)
		1421	}
		1422
		1423	sub prepare_temp {
		1424	my ($self) = @_;
		1425
		1426	$self->last_access ((delete $self->{last_access})
		1427	|| $cf::RUNTIME); #d#
		1428	# safety
		1429	$self->{instantiate_time} = $cf::RUNTIME
		1430	if $self->{instantiate_time} > $cf::RUNTIME;
		1431	}
		1432
		1433	sub prepare_orig {
		1434	my ($self) = @_;
		1435
		1436	$self->{load_original} = 1;
		1437	$self->{instantiate_time} = $cf::RUNTIME;
		1438	$self->last_access ($cf::RUNTIME);
		1439	$self->instantiate;
		1440	}
		1441
		1442	sub load_header {
		1443	my ($self) = @_;
		1444
		1445	if ($self->load_header_temp) {
		1446	$self->prepare_temp;
		1447	} else {
		1448	$self->load_header_orig
		1449	or return;
		1450	$self->prepare_orig;
		1451	}
		1452
		1453	$self->default_region (cf::region::find_by_path $self->{path})
		1454	unless $self->default_region;
		1455
		1456	1
		1457	}
		1458
		1459	sub find;
		1460	sub find {
		1461	my ($path, $origin) = @_;
		1462
		1463	$path = normalise $path, $origin && $origin->path;
		1464
		1465	cf::lock_wait "map_find:$path";
		1466
		1467	$cf::MAP{$path} || do {
		1468	my $guard = cf::lock_acquire "map_find:$path";
		1469	my $map = new_from_path cf::map $path
		1470	or return;
		1471
		1472	$map->{last_save} = $cf::RUNTIME;
		1473
		1474	$map->load_header
		1475	or return;
		1476
		1477	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1478	# doing this can freeze the server in a sync job, obviously
		1479	#$cf::WAIT_FOR_TICK->wait;
		1480	$map->reset;
		1481	undef $guard;
		1482	return find $path;
		1483	}
		1484
		1485	$cf::MAP{$path} = $map
		1486	}
		1487	}
		1488
		1489	sub pre_load { }
		1490	sub post_load { }
		1491
		1492	sub load {
		1493	my ($self) = @_;
		1494
		1495	local $self->{deny_reset} = 1; # loading can take a long time
		1496
		1497	my $path = $self->{path};
		1498
		1499	{
		1500	my $guard = cf::lock_acquire "map_load:$path";
		1501
		1502	return if $self->in_memory != cf::MAP_SWAPPED;
		1503
		1504	$self->in_memory (cf::MAP_LOADING);
		1505
		1506	$self->alloc;
		1507
		1508	$self->pre_load;
		1509	Coro::cede;
		1510
		1511	$self->_load_objects ($self->{load_path}, 1)
		1512	or return;
		1513
		1514	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1515	if delete $self->{load_original};
		1516
		1517	if (my $uniq = $self->uniq_path) {
		1518	utf8::encode $uniq;
		1519	if (aio_open $uniq, O_RDONLY, 0) {
		1520	$self->clear_unique_items;
		1521	$self->_load_objects ($uniq, 0);
		1522	}
		1523	}
		1524
		1525	Coro::cede;
		1526	# now do the right thing for maps
		1527	$self->link_multipart_objects;
		1528	$self->difficulty ($self->estimate_difficulty)
		1529	unless $self->difficulty;
		1530	Coro::cede;
		1531
		1532	unless ($self->{deny_activate}) {
		1533	$self->decay_objects;
		1534	$self->fix_auto_apply;
		1535	$self->update_buttons;
		1536	Coro::cede;
		1537	$self->set_darkness_map;
		1538	Coro::cede;
		1539	$self->activate;
		1540	}
		1541
		1542	$self->in_memory (cf::MAP_IN_MEMORY);
		1543	}
		1544
		1545	$self->post_load;
		1546	}
		1547
		1548	sub customise_for {
		1549	my ($self, $ob) = @_;
		1550
		1551	return find "~" . $ob->name . "/" . $self->{path}
		1552	if $self->per_player;
		1553
		1554	$self
		1555	}
		1556
		1557	# find and load all maps in the 3x3 area around a map
		1558	sub load_diag {
965	my ($map) = @_;	1559	my ($map) = @_;
966		1560
967	my $path = $map->tmpname;	1561	my @diag; # diagonal neighbours
968	defined $path or return;
969		1562
970	unlink "$path.pst";	1563	for (0 .. 3) {
971	};	1564	my $neigh = $map->tile_path ($_)
		1565	or next;
		1566	$neigh = find $neigh, $map
		1567	or next;
		1568	$neigh->load;
972		1569
973	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1570	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1571	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1572	}
974		1573
975	#############################################################################	1574	for (@diag) {
976	# load/save perl data associated with player->ob objects	1575	my $neigh = find @$_
977		1576	or next;
978	sub all_objects(@) {	1577	$neigh->load;
979	@_, map all_objects ($_->inv), @_	1578	}
980	}	1579	}
981		1580
982	# TODO: compatibility cruft, remove when no longer needed	1581	sub find_sync {
983	cf::player->attach (	1582	my ($path, $origin) = @_;
984	on_load => sub {
985	my ($pl, $path) = @_;
986		1583
987	for my $o (all_objects $pl->ob) {	1584	cf::sync_job { find $path, $origin }
988	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1585	}
989	$o->set_ob_key_value ("_perl_data");
990		1586
991	%$o = %{ Storable::thaw pack "H*", $value };	1587	sub do_load_sync {
		1588	my ($map) = @_;
		1589
		1590	cf::sync_job { $map->load };
		1591	}
		1592
		1593	our %MAP_PREFETCH;
		1594	our $MAP_PREFETCHER = undef;
		1595
		1596	sub find_async {
		1597	my ($path, $origin) = @_;
		1598
		1599	$path = normalise $path, $origin && $origin->{path};
		1600
		1601	if (my $map = $cf::MAP{$path}) {
		1602	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1603	}
		1604
		1605	undef $MAP_PREFETCH{$path};
		1606	$MAP_PREFETCHER ||= cf::async {
		1607	while (%MAP_PREFETCH) {
		1608	for my $path (keys %MAP_PREFETCH) {
		1609	my $map = find $path
		1610	or next;
		1611	$map->load;
		1612
		1613	delete $MAP_PREFETCH{$path};
992	}	1614	}
993	}	1615	}
		1616	undef $MAP_PREFETCHER;
		1617	};
		1618	$MAP_PREFETCHER->prio (6);
		1619
		1620	()
		1621	}
		1622
		1623	sub save {
		1624	my ($self) = @_;
		1625
		1626	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1627
		1628	$self->{last_save} = $cf::RUNTIME;
		1629
		1630	return unless $self->dirty;
		1631
		1632	my $save = $self->save_path; utf8::encode $save;
		1633	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1634
		1635	$self->{load_path} = $save;
		1636
		1637	return if $self->{deny_save};
		1638
		1639	local $self->{last_access} = $self->last_access;#d#
		1640
		1641	cf::async {
		1642	$_->contr->save for $self->players;
		1643	};
		1644
		1645	if ($uniq) {
		1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1647	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1648	} else {
		1649	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
994	},	1650	}
995	);	1651	}
996		1652
997	#############################################################################	1653	sub swap_out {
		1654	my ($self) = @_;
998		1655
999	=head2 CORE EXTENSIONS	1656	# save first because save cedes
		1657	$self->save;
1000		1658
1001	Functions and methods that extend core crossfire objects.	1659	my $lock = cf::lock_acquire "map_data:" . $self->path;
1002		1660
1003	=head3 cf::player	1661	return if $self->players;
		1662	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1663	return if $self->{deny_save};
		1664
		1665	$self->clear;
		1666	$self->in_memory (cf::MAP_SWAPPED);
		1667	}
		1668
		1669	sub reset_at {
		1670	my ($self) = @_;
		1671
		1672	# TODO: safety, remove and allow resettable per-player maps
		1673	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1674	return 1e99 if $self->{deny_reset};
		1675
		1676	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1677	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1678
		1679	$time + $to
		1680	}
		1681
		1682	sub should_reset {
		1683	my ($self) = @_;
		1684
		1685	$self->reset_at <= $cf::RUNTIME
		1686	}
		1687
		1688	sub reset {
		1689	my ($self) = @_;
		1690
		1691	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1692
		1693	return if $self->players;
		1694	return if $self->isa ("ext::map_per_player");#d#
		1695
		1696	warn "resetting map ", $self->path;#d#
		1697
		1698	$self->in_memory (cf::MAP_SWAPPED);
		1699
		1700	# need to save uniques path
		1701	unless ($self->{deny_save}) {
		1702	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1703
		1704	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1705	if $uniq;
		1706	}
		1707
		1708	delete $cf::MAP{$self->path};
		1709
		1710	$self->clear;
		1711
		1712	$_->clear_links_to ($self) for values %cf::MAP;
		1713
		1714	$self->unlink_save;
		1715	$self->destroy;
		1716	}
		1717
		1718	my $nuke_counter = "aaaa";
		1719
		1720	sub nuke {
		1721	my ($self) = @_;
		1722
		1723	delete $cf::MAP{$self->path};
		1724
		1725	$self->unlink_save;
		1726
		1727	bless $self, "cf::map";
		1728	delete $self->{deny_reset};
		1729	$self->{deny_save} = 1;
		1730	$self->reset_timeout (1);
		1731	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1732
		1733	$cf::MAP{$self->path} = $self;
		1734
		1735	$self->reset; # polite request, might not happen
		1736	}
		1737
		1738	=item cf::map::unique_maps
		1739
		1740	Returns an arrayref of paths of all shared maps that have
		1741	instantiated unique items. May block.
		1742
		1743	=cut
		1744
		1745	sub unique_maps() {
		1746	my $files = aio_readdir $UNIQUEDIR
		1747	or return;
		1748
		1749	my @paths;
		1750
		1751	for (@$files) {
		1752	utf8::decode $_;
		1753	next if /\.pst$/;
		1754	next unless /^$PATH_SEP/o;
		1755
		1756	push @paths, cf::map::normalise $_;
		1757	}
		1758
		1759	\@paths
		1760	}
		1761
		1762	package cf;
		1763
		1764	=back
		1765
		1766	=head3 cf::object
		1767
		1768	=cut
		1769
		1770	package cf::object;
1004		1771
1005	=over 4	1772	=over 4
1006		1773
1007	=item cf::player::exists $login	1774	=item $ob->inv_recursive
1008		1775
1009	Returns true when the given account exists.	1776	Returns the inventory of the object _and_ their inventories, recursively.
1010		1777
1011	=cut	1778	=cut
1012		1779
1013	sub cf::player::exists($) {	1780	sub inv_recursive_;
1014	cf::player::find $_[0]	1781	sub inv_recursive_ {
1015	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1782	map { $_, inv_recursive_ $_->inv } @_
1016	}	1783	}
1017		1784
1018	=item $player->ext_reply ($msgid, $msgtype, %msg)	1785	sub inv_recursive {
1019		1786	inv_recursive_ inv $_[0]
1020	Sends an ext reply to the player.
1021
1022	=cut
1023
1024	sub cf::player::ext_reply($$$%) {
1025	my ($self, $id, %msg) = @_;
1026
1027	$msg{msgid} = $id;
1028
1029	$self->send ("ext " . to_json \%msg);
1030	}	1787	}
		1788
		1789	package cf;
1031		1790
1032	=back	1791	=back
1033		1792
1034	=head3 cf::object::player	1793	=head3 cf::object::player
1035		1794
…		…
1073	(ref $cf::CFG{"may_$access"}	1832	(ref $cf::CFG{"may_$access"}
1074	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1833	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1075	: $cf::CFG{"may_$access"})	1834	: $cf::CFG{"may_$access"})
1076	}	1835	}
1077		1836
		1837	=item $player_object->enter_link
		1838
		1839	Freezes the player and moves him/her to a special map (C<{link}>).
		1840
		1841	The player should be reasonably safe there for short amounts of time. You
		1842	I<MUST> call C<leave_link> as soon as possible, though.
		1843
		1844	Will never block.
		1845
		1846	=item $player_object->leave_link ($map, $x, $y)
		1847
		1848	Moves the player out of the special C<{link}> map onto the specified
		1849	map. If the map is not valid (or omitted), the player will be moved back
		1850	to the location he/she was before the call to C<enter_link>, or, if that
		1851	fails, to the emergency map position.
		1852
		1853	Might block.
		1854
		1855	=cut
		1856
		1857	sub link_map {
		1858	unless ($LINK_MAP) {
		1859	$LINK_MAP = cf::map::find "{link}"
		1860	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1861	$LINK_MAP->load;
		1862	}
		1863
		1864	$LINK_MAP
		1865	}
		1866
		1867	sub cf::object::player::enter_link {
		1868	my ($self) = @_;
		1869
		1870	$self->deactivate_recursive;
		1871
		1872	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1873
		1874	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1875	if $self->map;
		1876
		1877	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1878	}
		1879
		1880	sub cf::object::player::leave_link {
		1881	my ($self, $map, $x, $y) = @_;
		1882
		1883	my $link_pos = delete $self->{_link_pos};
		1884
		1885	unless ($map) {
		1886	# restore original map position
		1887	($map, $x, $y) = @{ $link_pos || [] };
		1888	$map = cf::map::find $map;
		1889
		1890	unless ($map) {
		1891	($map, $x, $y) = @$EMERGENCY_POSITION;
		1892	$map = cf::map::find $map
		1893	or die "FATAL: cannot load emergency map\n";
		1894	}
		1895	}
		1896
		1897	($x, $y) = (-1, -1)
		1898	unless (defined $x) && (defined $y);
		1899
		1900	# use -1 or undef as default coordinates, not 0, 0
		1901	($x, $y) = ($map->enter_x, $map->enter_y)
		1902	if $x <=0 && $y <= 0;
		1903
		1904	$map->load;
		1905	$map->load_diag;
		1906
		1907	return unless $self->contr->active;
		1908	$self->activate_recursive;
		1909
		1910	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1911	$self->enter_map ($map, $x, $y);
		1912	}
		1913
		1914	cf::player->attach (
		1915	on_logout => sub {
		1916	my ($pl) = @_;
		1917
		1918	# abort map switching before logout
		1919	if ($pl->ob->{_link_pos}) {
		1920	cf::sync_job {
		1921	$pl->ob->leave_link
		1922	};
		1923	}
		1924	},
		1925	on_login => sub {
		1926	my ($pl) = @_;
		1927
		1928	# try to abort aborted map switching on player login :)
		1929	# should happen only on crashes
		1930	if ($pl->ob->{_link_pos}) {
		1931	$pl->ob->enter_link;
		1932	(async {
		1933	$pl->ob->reply (undef,
		1934	"There was an internal problem at your last logout, "
		1935	. "the server will try to bring you to your intended destination in a second.",
		1936	cf::NDI_RED);
		1937	# we need this sleep as the login has a concurrent enter_exit running
		1938	# and this sleep increases chances of the player not ending up in scorn
		1939	Coro::Timer::sleep 1;
		1940	$pl->ob->leave_link;
		1941	})->prio (2);
		1942	}
		1943	},
		1944	);
		1945
		1946	=item $player_object->goto ($path, $x, $y)
		1947
		1948	=cut
		1949
		1950	sub cf::object::player::goto {
		1951	my ($self, $path, $x, $y) = @_;
		1952
		1953	$self->enter_link;
		1954
		1955	(async {
		1956	my $map = eval {
		1957	my $map = cf::map::find $path;
		1958	$map = $map->customise_for ($self) if $map;
		1959	$map
		1960	} or
		1961	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1962
		1963	$self->leave_link ($map, $x, $y);
		1964	})->prio (1);
		1965	}
		1966
		1967	=item $player_object->enter_exit ($exit_object)
		1968
		1969	=cut
		1970
		1971	sub parse_random_map_params {
		1972	my ($spec) = @_;
		1973
		1974	my $rmp = { # defaults
		1975	xsize => (cf::rndm 15, 40),
		1976	ysize => (cf::rndm 15, 40),
		1977	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1978	#layout => string,
		1979	};
		1980
		1981	for (split /\n/, $spec) {
		1982	my ($k, $v) = split /\s+/, $_, 2;
		1983
		1984	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1985	}
		1986
		1987	$rmp
		1988	}
		1989
		1990	sub prepare_random_map {
		1991	my ($exit) = @_;
		1992
		1993	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1994
		1995	# all this does is basically replace the /! path by
		1996	# a new random map path (?random/...) with a seed
		1997	# that depends on the exit object
		1998
		1999	my $rmp = parse_random_map_params $exit->msg;
		2000
		2001	if ($exit->map) {
		2002	$rmp->{region} = $exit->region->name;
		2003	$rmp->{origin_map} = $exit->map->path;
		2004	$rmp->{origin_x} = $exit->x;
		2005	$rmp->{origin_y} = $exit->y;
		2006	}
		2007
		2008	$rmp->{random_seed} ||= $exit->random_seed;
		2009
		2010	my $data = cf::to_json $rmp;
		2011	my $md5 = Digest::MD5::md5_hex $data;
		2012	my $meta = "$RANDOMDIR/$md5.meta";
		2013
		2014	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2015	aio_write $fh, 0, (length $data), $data, 0;
		2016	undef $fh;
		2017	aio_rename "$meta~", $meta;
		2018
		2019	$exit->slaying ("?random/$md5");
		2020	$exit->msg (undef);
		2021	}
		2022	}
		2023
		2024	sub cf::object::player::enter_exit {
		2025	my ($self, $exit) = @_;
		2026
		2027	return unless $self->type == cf::PLAYER;
		2028
		2029	if ($exit->slaying eq "/!") {
		2030	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2031	# the problem is that $exit might not survive long enough
		2032	# so it needs to be done right now, right here
		2033	cf::sync_job { prepare_random_map $exit };
		2034	}
		2035
		2036	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2037	my $hp = $exit->stats->hp;
		2038	my $sp = $exit->stats->sp;
		2039
		2040	$self->enter_link;
		2041
		2042	(async {
		2043	$self->deactivate_recursive; # just to be sure
		2044	unless (eval {
		2045	$self->goto ($slaying, $hp, $sp);
		2046
		2047	1;
		2048	}) {
		2049	$self->message ("Something went wrong deep within the crossfire server. "
		2050	. "I'll try to bring you back to the map you were before. "
		2051	. "Please report this to the dungeon master!",
		2052	cf::NDI_UNIQUE | cf::NDI_RED);
		2053
		2054	warn "ERROR in enter_exit: $@";
		2055	$self->leave_link;
		2056	}
		2057	})->prio (1);
		2058	}
		2059
1078	=head3 cf::client	2060	=head3 cf::client
1079		2061
1080	=over 4	2062	=over 4
1081		2063
1082	=item $client->send_drawinfo ($text, $flags)	2064	=item $client->send_drawinfo ($text, $flags)
…		…
1088		2070
1089	sub cf::client::send_drawinfo {	2071	sub cf::client::send_drawinfo {
1090	my ($self, $text, $flags) = @_;	2072	my ($self, $text, $flags) = @_;
1091		2073
1092	utf8::encode $text;	2074	utf8::encode $text;
1093	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2075	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1094	}	2076	}
1095		2077
		2078	=item $client->ext_event ($type, %msg)
		2079
		2080	Sends an exti event to the client.
		2081
		2082	=cut
		2083
		2084	sub cf::client::ext_event($$%) {
		2085	my ($self, $type, %msg) = @_;
		2086
		2087	$msg{msgtype} = "event_$type";
		2088	$self->send_packet ("ext " . cf::to_json \%msg);
		2089	}
1096		2090
1097	=item $success = $client->query ($flags, "text", \&cb)	2091	=item $success = $client->query ($flags, "text", \&cb)
1098		2092
1099	Queues a query to the client, calling the given callback with	2093	Queues a query to the client, calling the given callback with
1100	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2094	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1125	on_reply => sub {	2119	on_reply => sub {
1126	my ($ns, $msg) = @_;	2120	my ($ns, $msg) = @_;
1127		2121
1128	# this weird shuffling is so that direct followup queries	2122	# this weird shuffling is so that direct followup queries
1129	# get handled first	2123	# get handled first
1130	my $queue = delete $ns->{query_queue};	2124	my $queue = delete $ns->{query_queue}
		2125	or return; # be conservative, not sure how that can happen, but we saw a crash here
1131		2126
1132	(shift @$queue)->[1]->($msg);	2127	(shift @$queue)->[1]->($msg);
		2128	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1133		2129
1134	push @{ $ns->{query_queue} }, @$queue;	2130	push @{ $ns->{query_queue} }, @$queue;
1135		2131
1136	if (@{ $ns->{query_queue} } == @$queue) {	2132	if (@{ $ns->{query_queue} } == @$queue) {
1137	if (@$queue) {	2133	if (@$queue) {
…		…
1141	}	2137	}
1142	}	2138	}
1143	},	2139	},
1144	);	2140	);
1145		2141
1146	=item $client->coro (\&cb)	2142	=item $client->async (\&cb)
1147		2143
1148	Create a new coroutine, running the specified callback. The coroutine will	2144	Create a new coroutine, running the specified callback. The coroutine will
1149	be automatically cancelled when the client gets destroyed (e.g. on logout,	2145	be automatically cancelled when the client gets destroyed (e.g. on logout,
1150	or loss of connection).	2146	or loss of connection).
1151		2147
1152	=cut	2148	=cut
1153		2149
1154	sub cf::client::coro {	2150	sub cf::client::async {
1155	my ($self, $cb) = @_;	2151	my ($self, $cb) = @_;
1156		2152
1157	my $coro; $coro = async {	2153	my $coro = &Coro::async ($cb);
1158	eval {
1159	$cb->();
1160	};
1161	warn $@ if $@;
1162	};
1163		2154
1164	$coro->on_destroy (sub {	2155	$coro->on_destroy (sub {
1165	delete $self->{_coro}{$coro+0};	2156	delete $self->{_coro}{$coro+0};
1166	});	2157	});
1167		2158
…		…
1200		2191
1201	# here we export the classes and methods available to script code	2192	# here we export the classes and methods available to script code
1202		2193
1203	=pod	2194	=pod
1204		2195
1205	The following fucntions and emthods are available within a safe environment:	2196	The following functions and methods are available within a safe environment:
1206		2197
1207	cf::object contr pay_amount pay_player map	2198	cf::object contr pay_amount pay_player map
1208	cf::object::player player	2199	cf::object::player player
1209	cf::player peaceful	2200	cf::player peaceful
1210	cf::map trigger	2201	cf::map trigger
…		…
1295	#############################################################################	2286	#############################################################################
1296		2287
1297	=head2 EXTENSION DATABASE SUPPORT	2288	=head2 EXTENSION DATABASE SUPPORT
1298		2289
1299	Crossfire maintains a very simple database for extension use. It can	2290	Crossfire maintains a very simple database for extension use. It can
1300	currently store anything that can be serialised using Storable, which	2291	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1301	excludes objects.	2292	convert to/from binary).
1302		2293
1303	The parameter C<$family> should best start with the name of the extension	2294	The parameter C<$family> should best start with the name of the extension
1304	using it, it should be unique.	2295	using it, it should be unique.
1305		2296
1306	=over 4	2297	=over 4
1307		2298
1308	=item $hashref = cf::db_get $family
1309
1310	Return a hashref for use by the extension C<$family>, which can be
1311	modified. After modifications, you have to call C<cf::db_dirty> or
1312	C<cf::db_sync>.
1313
1314	=item $value = cf::db_get $family => $key	2299	=item $value = cf::db_get $family => $key
1315		2300
1316	Returns a single value from the database	2301	Returns a single value from the database.
1317
1318	=item cf::db_put $family => $hashref
1319
1320	Stores the given family hashref into the database. Updates are delayed, if
1321	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1322		2302
1323	=item cf::db_put $family => $key => $value	2303	=item cf::db_put $family => $key => $value
1324		2304
1325	Stores the given C<$value> in the family hash. Updates are delayed, if you	2305	Stores the given C<$value> in the family.
1326	want the data to be synced to disk immediately, use C<cf::db_sync>.
1327
1328	=item cf::db_dirty
1329
1330	Marks the database as dirty, to be updated at a later time.
1331
1332	=item cf::db_sync
1333
1334	Immediately write the database to disk I<if it is dirty>.
1335		2306
1336	=cut	2307	=cut
1337		2308
1338	our $DB;	2309	our $DB;
1339		2310
1340	{	2311	sub db_init {
1341	my $path = cf::localdir . "/database.pst";	2312	unless ($DB) {
		2313	$DB = BDB::db_create $DB_ENV;
1342		2314
1343	sub db_load() {	2315	cf::sync_job {
1344	warn "loading database $path\n";#d# remove later	2316	eval {
1345	$DB = stat $path ? Storable::retrieve $path : { };	2317	$DB->set_flags (BDB::CHKSUM);
1346	}
1347		2318
1348	my $pid;	2319	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1349		2320	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1350	sub db_save() {	2321	cf::cleanup "db_open(db): $!" if $!;
1351	warn "saving database $path\n";#d# remove later	2322	};
1352	waitpid $pid, 0 if $pid;	2323	cf::cleanup "db_open(db): $@" if $@;
1353	if (0 == ($pid = fork)) {
1354	$DB->{_meta}{version} = 1;
1355	Storable::nstore $DB, "$path~";
1356	rename "$path~", $path;
1357	cf::_exit 0 if defined $pid;
1358	}	2324	};
1359	}
1360
1361	my $dirty;
1362
1363	sub db_sync() {
1364	db_save if $dirty;
1365	undef $dirty;
1366	}
1367
1368	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1369	db_sync;
1370	});	2325	}
		2326	}
1371		2327
1372	sub db_dirty() {
1373	$dirty = 1;
1374	$idle->start;
1375	}
1376
1377	sub db_get($;$) {	2328	sub db_get($$) {
1378	@_ >= 2	2329	my $key = "$_[0]/$_[1]";
1379	? $DB->{$_[0]}{$_[1]}
1380	: ($DB->{$_[0]} ||= { })
1381	}
1382		2330
		2331	cf::sync_job {
		2332	BDB::db_get $DB, undef, $key, my $data;
		2333
		2334	$! ? ()
		2335	: $data
		2336	}
		2337	}
		2338
1383	sub db_put($$;$) {	2339	sub db_put($$$) {
1384	if (@_ >= 3) {	2340	BDB::dbreq_pri 4;
1385	$DB->{$_[0]}{$_[1]} = $_[2];	2341	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1386	} else {	2342	}
1387	$DB->{$_[0]} = $_[1];
1388	}
1389	db_dirty;
1390	}
1391		2343
1392	cf::global->attach (	2344	=item cf::cache $id => [$paths...], $processversion => $process
1393	prio => 10000,	2345
1394	on_cleanup => sub {	2346	Generic caching function that returns the value of the resource $id,
1395	db_sync;	2347	caching and regenerating as required.
		2348
		2349	This function can block.
		2350
		2351	=cut
		2352
		2353	sub cache {
		2354	my ($id, $src, $processversion, $process) = @_;
		2355
		2356	my $meta =
		2357	join "\x00",
		2358	$processversion,
		2359	map {
		2360	aio_stat $_
		2361	and Carp::croak "$_: $!";
		2362
		2363	($_, (stat _)[7,9])
		2364	} @$src;
		2365
		2366	my $dbmeta = db_get cache => "$id/meta";
		2367	if ($dbmeta ne $meta) {
		2368	# changed, we may need to process
		2369
		2370	my @data;
		2371	my $md5;
		2372
		2373	for (0 .. $#$src) {
		2374	0 <= aio_load $src->[$_], $data[$_]
		2375	or Carp::croak "$src->[$_]: $!";
1396	},	2376	}
1397	);	2377
		2378	# if processing is expensive, check
		2379	# checksum first
		2380	if (1) {
		2381	$md5 =
		2382	join "\x00",
		2383	$processversion,
		2384	map {
		2385	Coro::cede;
		2386	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2387	} 0.. $#$src;
		2388
		2389
		2390	my $dbmd5 = db_get cache => "$id/md5";
		2391	if ($dbmd5 eq $md5) {
		2392	db_put cache => "$id/meta", $meta;
		2393
		2394	return db_get cache => "$id/data";
		2395	}
		2396	}
		2397
		2398	my $t1 = Time::HiRes::time;
		2399	my $data = $process->(\@data);
		2400	my $t2 = Time::HiRes::time;
		2401
		2402	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2403
		2404	db_put cache => "$id/data", $data;
		2405	db_put cache => "$id/md5" , $md5;
		2406	db_put cache => "$id/meta", $meta;
		2407
		2408	return $data;
		2409	}
		2410
		2411	db_get cache => "$id/data"
1398	}	2412	}
		2413
		2414	=item fork_call { }, $args
		2415
		2416	Executes the given code block with the given arguments in a seperate
		2417	process, returning the results. Everything must be serialisable with
		2418	Coro::Storable. May, of course, block. Note that the executed sub may
		2419	never block itself or use any form of Event handling.
		2420
		2421	=cut
		2422
		2423	sub fork_call(&@) {
		2424	my ($cb, @args) = @_;
		2425
		2426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2427	# or die "socketpair: $!";
		2428	pipe my $fh1, my $fh2
		2429	or die "pipe: $!";
		2430
		2431	if (my $pid = fork) {
		2432	close $fh2;
		2433
		2434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2435	$res = Coro::Storable::thaw $res;
		2436
		2437	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2438
		2439	die $$res unless "ARRAY" eq ref $res;
		2440
		2441	return wantarray ? @$res : $res->[-1];
		2442	} else {
		2443	reset_signals;
		2444	local $SIG{__WARN__};
		2445	local $SIG{__DIE__};
		2446	eval {
		2447	close $fh1;
		2448
		2449	my @res = eval { $cb->(@args) };
		2450	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2451	};
		2452
		2453	warn $@ if $@;
		2454	_exit 0;
		2455	}
		2456	}
		2457
		2458
1399		2459
1400	#############################################################################	2460	#############################################################################
1401	# the server's main()	2461	# the server's init and main functions
		2462
		2463	sub load_facedata($) {
		2464	my ($path) = @_;
		2465
		2466	warn "loading facedata from $path\n";
		2467
		2468	my $facedata;
		2469	0 < aio_load $path, $facedata
		2470	or die "$path: $!";
		2471
		2472	$facedata = Coro::Storable::thaw $facedata;
		2473
		2474	$facedata->{version} == 2
		2475	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2476
		2477	{
		2478	my $faces = $facedata->{faceinfo};
		2479
		2480	while (my ($face, $info) = each %$faces) {
		2481	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2482	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2483	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2484	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2485	Coro::cede;
		2486	}
		2487
		2488	while (my ($face, $info) = each %$faces) {
		2489	next unless $info->{smooth};
		2490	my $idx = cf::face::find $face
		2491	or next;
		2492	if (my $smooth = cf::face::find $info->{smooth}) {
		2493	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2494	} else {
		2495	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2496	}
		2497	Coro::cede;
		2498	}
		2499	}
		2500
		2501	{
		2502	my $anims = $facedata->{animinfo};
		2503
		2504	while (my ($anim, $info) = each %$anims) {
		2505	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2506	Coro::cede;
		2507	}
		2508
		2509	cf::anim::invalidate_all; # d'oh
		2510	}
		2511
		2512	1
		2513	}
		2514
		2515	sub reload_regions {
		2516	load_resource_file "$MAPDIR/regions"
		2517	or die "unable to load regions file\n";
		2518	}
		2519
		2520	sub reload_facedata {
		2521	load_facedata "$DATADIR/facedata"
		2522	or die "unable to load facedata\n";
		2523	}
		2524
		2525	sub reload_archetypes {
		2526	load_resource_file "$DATADIR/archetypes"
		2527	or die "unable to load archetypes\n";
		2528	}
		2529
		2530	sub reload_treasures {
		2531	load_resource_file "$DATADIR/treasures"
		2532	or die "unable to load treasurelists\n";
		2533	}
		2534
		2535	sub reload_resources {
		2536	warn "reloading resource files...\n";
		2537
		2538	reload_regions;
		2539	reload_facedata;
		2540	reload_archetypes;
		2541	reload_treasures;
		2542
		2543	warn "finished reloading resource files\n";
		2544	}
		2545
		2546	sub init {
		2547	reload_resources;
		2548	}
1402		2549
1403	sub cfg_load {	2550	sub cfg_load {
1404	open my $fh, "<:utf8", cf::confdir . "/config"	2551	open my $fh, "<:utf8", "$CONFDIR/config"
1405	or return;	2552	or return;
1406		2553
1407	local $/;	2554	local $/;
1408	*CFG = YAML::Syck::Load <$fh>;	2555	*CFG = YAML::Syck::Load <$fh>;
		2556
		2557	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2558
		2559	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2560	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2561
		2562	if (exists $CFG{mlockall}) {
		2563	eval {
		2564	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2565	and die "WARNING: m(un)lockall failed: $!\n";
		2566	};
		2567	warn $@ if $@;
		2568	}
1409	}	2569	}
1410		2570
1411	sub main {	2571	sub main {
1412	# we must not ever block the main coroutine	2572	# we must not ever block the main coroutine
1413	local $Coro::idle = sub {	2573	local $Coro::idle = sub {
1414	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2574	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1415	(Coro::unblock_sub {	2575	(async {
1416	Event::one_event;	2576	Event::one_event;
1417	})->();	2577	})->prio (Coro::PRIO_MAX);
1418	};	2578	};
1419		2579
1420	cfg_load;	2580	cfg_load;
1421	db_load;	2581	db_init;
1422	load_extensions;	2582	load_extensions;
		2583
		2584	$TICK_WATCHER->start;
1423	Event::loop;	2585	Event::loop;
1424	}	2586	}
1425		2587
1426	#############################################################################	2588	#############################################################################
1427	# initialisation	2589	# initialisation and cleanup
1428		2590
1429	sub perl_reload() {	2591	# install some emergency cleanup handlers
		2592	BEGIN {
		2593	for my $signal (qw(INT HUP TERM)) {
		2594	Event->signal (
		2595	reentrant => 0,
		2596	data => WF_AUTOCANCEL,
		2597	signal => $signal,
		2598	prio => 0,
		2599	cb => sub {
		2600	cf::cleanup "SIG$signal";
		2601	},
		2602	);
		2603	}
		2604	}
		2605
		2606	sub emergency_save() {
		2607	my $freeze_guard = cf::freeze_mainloop;
		2608
		2609	warn "enter emergency perl save\n";
		2610
		2611	cf::sync_job {
		2612	# use a peculiar iteration method to avoid tripping on perl
		2613	# refcount bugs in for. also avoids problems with players
		2614	# and maps saved/destroyed asynchronously.
		2615	warn "begin emergency player save\n";
		2616	for my $login (keys %cf::PLAYER) {
		2617	my $pl = $cf::PLAYER{$login} or next;
		2618	$pl->valid or next;
		2619	$pl->save;
		2620	}
		2621	warn "end emergency player save\n";
		2622
		2623	warn "begin emergency map save\n";
		2624	for my $path (keys %cf::MAP) {
		2625	my $map = $cf::MAP{$path} or next;
		2626	$map->valid or next;
		2627	$map->save;
		2628	}
		2629	warn "end emergency map save\n";
		2630
		2631	warn "begin emergency database checkpoint\n";
		2632	BDB::db_env_txn_checkpoint $DB_ENV;
		2633	warn "end emergency database checkpoint\n";
		2634	};
		2635
		2636	warn "leave emergency perl save\n";
		2637	}
		2638
		2639	sub post_cleanup {
		2640	my ($make_core) = @_;
		2641
		2642	warn Carp::longmess "post_cleanup backtrace"
		2643	if $make_core;
		2644	}
		2645
		2646	sub do_reload_perl() {
1430	# can/must only be called in main	2647	# can/must only be called in main
1431	if ($Coro::current != $Coro::main) {	2648	if ($Coro::current != $Coro::main) {
1432	warn "can only reload from main coroutine\n";	2649	warn "can only reload from main coroutine";
1433	return;	2650	return;
1434	}	2651	}
1435		2652
1436	warn "reloading...";	2653	warn "reloading...";
1437		2654
1438	local $FREEZE = 1;	2655	warn "entering sync_job";
		2656
		2657	cf::sync_job {
		2658	cf::write_runtime; # external watchdog should not bark
1439	cf::emergency_save;	2659	cf::emergency_save;
		2660	cf::write_runtime; # external watchdog should not bark
1440		2661
1441	eval {	2662	warn "syncing database to disk";
		2663	BDB::db_env_txn_checkpoint $DB_ENV;
		2664
1442	# if anything goes wrong in here, we should simply crash as we already saved	2665	# if anything goes wrong in here, we should simply crash as we already saved
1443		2666
1444	# cancel all watchers	2667	warn "cancelling all WF_AUTOCANCEL watchers";
1445	for (Event::all_watchers) {	2668	for (Event::all_watchers) {
1446	$_->cancel if $_->data & WF_AUTOCANCEL;	2669	$_->cancel if $_->data & WF_AUTOCANCEL;
1447	}	2670	}
1448		2671
		2672	warn "flushing outstanding aio requests";
		2673	for (;;) {
		2674	BDB::flush;
		2675	IO::AIO::flush;
		2676	Coro::cede;
		2677	last unless IO::AIO::nreqs || BDB::nreqs;
		2678	warn "iterate...";
		2679	}
		2680
		2681	++$RELOAD;
		2682
1449	# cancel all extension coros	2683	warn "cancelling all extension coros";
1450	$_->cancel for values %EXT_CORO;	2684	$_->cancel for values %EXT_CORO;
1451	%EXT_CORO = ();	2685	%EXT_CORO = ();
1452		2686
1453	# unload all extensions	2687	warn "removing commands";
1454	for (@exts) {	2688	%COMMAND = ();
		2689
		2690	warn "removing ext commands";
		2691	%EXTCMD = ();
		2692
		2693	warn "unloading/nuking all extensions";
		2694	for my $pkg (@EXTS) {
1455	warn "unloading <$_>";	2695	warn "... unloading $pkg";
1456	unload_extension $_;	2696
		2697	if (my $cb = $pkg->can ("unload")) {
		2698	eval {
		2699	$cb->($pkg);
		2700	1
		2701	} or warn "$pkg unloaded, but with errors: $@";
1457	}	2702	}
1458		2703
		2704	warn "... nuking $pkg";
		2705	Symbol::delete_package $pkg;
		2706	}
		2707
1459	# unload all modules loaded from $LIBDIR	2708	warn "unloading all perl modules loaded from $LIBDIR";
1460	while (my ($k, $v) = each %INC) {	2709	while (my ($k, $v) = each %INC) {
1461	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2710	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1462		2711
1463	warn "removing <$k>";	2712	warn "... unloading $k";
1464	delete $INC{$k};	2713	delete $INC{$k};
1465		2714
1466	$k =~ s/\.pm$//;	2715	$k =~ s/\.pm$//;
1467	$k =~ s/\//::/g;	2716	$k =~ s/\//::/g;
1468		2717
…		…
1471	}	2720	}
1472		2721
1473	Symbol::delete_package $k;	2722	Symbol::delete_package $k;
1474	}	2723	}
1475		2724
1476	# sync database to disk
1477	cf::db_sync;
1478	IO::AIO::flush;
1479
1480	# get rid of safe::, as good as possible	2725	warn "getting rid of safe::, as good as possible";
1481	Symbol::delete_package "safe::$_"	2726	Symbol::delete_package "safe::$_"
1482	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2727	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1483		2728
1484	# remove register_script_function callbacks
1485	# TODO
1486
1487	# unload cf.pm "a bit"	2729	warn "unloading cf.pm \"a bit\"";
1488	delete $INC{"cf.pm"};	2730	delete $INC{"cf.pm"};
		2731	delete $INC{"cf/pod.pm"};
1489		2732
1490	# don't, removes xs symbols, too,	2733	# don't, removes xs symbols, too,
1491	# and global variables created in xs	2734	# and global variables created in xs
1492	#Symbol::delete_package __PACKAGE__;	2735	#Symbol::delete_package __PACKAGE__;
1493		2736
1494	# reload cf.pm	2737	warn "unload completed, starting to reload now";
		2738
1495	warn "reloading cf.pm";	2739	warn "reloading cf.pm";
1496	require cf;	2740	require cf;
1497	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2741	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1498		2742
1499	# load config and database again	2743	warn "loading config and database again";
1500	cf::cfg_load;	2744	cf::cfg_load;
1501	cf::db_load;
1502		2745
1503	# load extensions
1504	warn "load extensions";	2746	warn "loading extensions";
1505	cf::load_extensions;	2747	cf::load_extensions;
1506		2748
1507	# reattach attachments to objects	2749	warn "reattaching attachments to objects/players";
1508	warn "reattach";	2750	_global_reattach; # objects, sockets
1509	_global_reattach;	2751	warn "reattaching attachments to maps";
1510	};	2752	reattach $_ for values %MAP;
		2753	warn "reattaching attachments to players";
		2754	reattach $_ for values %PLAYER;
1511		2755
1512	if ($@) {	2756	warn "leaving sync_job";
		2757
		2758	1
		2759	} or do {
1513	warn $@;	2760	warn $@;
1514	warn "error while reloading, exiting.";	2761	warn "error while reloading, exiting.";
1515	exit 1;	2762	exit 1;
1516	}	2763	};
1517		2764
1518	warn "reloaded successfully";	2765	warn "reloaded";
1519	};	2766	};
1520		2767
1521	#############################################################################	2768	our $RELOAD_WATCHER; # used only during reload
1522		2769
1523	unless ($LINK_MAP) {	2770	sub reload_perl() {
1524	$LINK_MAP = cf::map::new;	2771	# doing reload synchronously and two reloads happen back-to-back,
		2772	# coro crashes during coro_state_free->destroy here.
1525		2773
1526	$LINK_MAP->width (41);	2774	$RELOAD_WATCHER ||= Event->timer (
1527	$LINK_MAP->height (41);	2775	reentrant => 0,
1528	$LINK_MAP->alloc;	2776	after => 0,
1529	$LINK_MAP->path ("{link}");	2777	data => WF_AUTOCANCEL,
1530	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";	2778	cb => sub {
1531	$LINK_MAP->in_memory (MAP_IN_MEMORY);	2779	do_reload_perl;
		2780	undef $RELOAD_WATCHER;
		2781	},
		2782	);
1532	}	2783	}
1533		2784
1534	register "<global>", __PACKAGE__;
1535
1536	register_command "perl-reload" => sub {	2785	register_command "reload" => sub {
1537	my ($who, $arg) = @_;	2786	my ($who, $arg) = @_;
1538		2787
1539	if ($who->flag (FLAG_WIZ)) {	2788	if ($who->flag (FLAG_WIZ)) {
1540	$who->message ("start of reload.");
1541	perl_reload;
1542	$who->message ("end of reload.");	2789	$who->message ("reloading server.");
		2790	async { reload_perl };
1543	}	2791	}
1544	};	2792	};
1545		2793
1546	unshift @INC, $LIBDIR;	2794	unshift @INC, $LIBDIR;
		2795
		2796	my $bug_warning = 0;
		2797
		2798	our @WAIT_FOR_TICK;
		2799	our @WAIT_FOR_TICK_BEGIN;
		2800
		2801	sub wait_for_tick {
		2802	return unless $TICK_WATCHER->is_active;
		2803	return if $Coro::current == $Coro::main;
		2804
		2805	my $signal = new Coro::Signal;
		2806	push @WAIT_FOR_TICK, $signal;
		2807	$signal->wait;
		2808	}
		2809
		2810	sub wait_for_tick_begin {
		2811	return unless $TICK_WATCHER->is_active;
		2812	return if $Coro::current == $Coro::main;
		2813
		2814	my $signal = new Coro::Signal;
		2815	push @WAIT_FOR_TICK_BEGIN, $signal;
		2816	$signal->wait;
		2817	}
1547		2818
1548	$TICK_WATCHER = Event->timer (	2819	$TICK_WATCHER = Event->timer (
1549	reentrant => 0,	2820	reentrant => 0,
		2821	parked => 1,
1550	prio => 0,	2822	prio => 0,
1551	at => $NEXT_TICK || $TICK,	2823	at => $NEXT_TICK || $TICK,
1552	data => WF_AUTOCANCEL,	2824	data => WF_AUTOCANCEL,
1553	cb => sub {	2825	cb => sub {
1554	unless ($FREEZE) {	2826	if ($Coro::current != $Coro::main) {
		2827	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2828	unless ++$bug_warning > 10;
		2829	return;
		2830	}
		2831
		2832	$NOW = Event::time;
		2833
1555	cf::server_tick; # one server iteration	2834	cf::server_tick; # one server iteration
		2835
1556	$RUNTIME += $TICK;	2836	$RUNTIME += $TICK;
1557	}
1558
1559	$NEXT_TICK += $TICK;	2837	$NEXT_TICK += $TICK;
		2838
		2839	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2840	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2841	Coro::async_pool {
		2842	write_runtime
		2843	or warn "ERROR: unable to write runtime file: $!";
		2844	};
		2845	}
		2846
		2847	# my $AFTER = Event::time;
		2848	# warn $AFTER - $NOW;#d#
1560		2849
1561	# if we are delayed by four ticks or more, skip them all	2850	# if we are delayed by four ticks or more, skip them all
1562	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2851	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1563		2852
1564	$TICK_WATCHER->at ($NEXT_TICK);	2853	$TICK_WATCHER->at ($NEXT_TICK);
1565	$TICK_WATCHER->start;	2854	$TICK_WATCHER->start;
		2855
		2856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2857	$sig->send;
		2858	}
		2859	while (my $sig = shift @WAIT_FOR_TICK) {
		2860	$sig->send;
		2861	}
		2862
		2863	_post_tick;
1566	},	2864	},
1567	);	2865	);
1568		2866
		2867	{
1569	IO::AIO::max_poll_time $TICK * 0.2;	2868	BDB::max_poll_time $TICK * 0.1;
1570		2869	$BDB_POLL_WATCHER = Event->io (
1571	Event->io (	2870	reentrant => 0,
1572	fd => IO::AIO::poll_fileno,	2871	fd => BDB::poll_fileno,
1573	poll => 'r',	2872	poll => 'r',
1574	prio => 5,	2873	prio => 0,
1575	data => WF_AUTOCANCEL,
1576	cb => \&IO::AIO::poll_cb,
1577	);
1578
1579	Event->timer (
1580	data => WF_AUTOCANCEL,	2874	data => WF_AUTOCANCEL,
1581	after => 0,	2875	cb => \&BDB::poll_cb,
1582	interval => 10,	2876	);
1583	cb => sub {	2877	BDB::min_parallel 8;
1584	(Coro::unblock_sub {	2878
1585	write_runtime	2879	BDB::set_sync_prepare {
1586	or warn "ERROR: unable to write runtime file: $!";	2880	my $status;
		2881	my $current = $Coro::current;
		2882	(
		2883	sub {
		2884	$status = $!;
		2885	$current->ready; undef $current;
		2886	},
		2887	sub {
		2888	Coro::schedule while defined $current;
		2889	$! = $status;
		2890	},
		2891	)
		2892	};
		2893
		2894	unless ($DB_ENV) {
		2895	$DB_ENV = BDB::db_env_create;
		2896
		2897	cf::sync_job {
		2898	eval {
		2899	BDB::db_env_open
		2900	$DB_ENV,
		2901	$BDBDIR,
		2902	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2903	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2904	0666;
		2905
		2906	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2907
		2908	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2909	$DB_ENV->set_lk_detect;
		2910	};
		2911
		2912	cf::cleanup "db_env_open(db): $@" if $@;
1587	})->();	2913	};
1588	},	2914	}
1589	);	2915	}
		2916
		2917	{
		2918	IO::AIO::min_parallel 8;
		2919
		2920	undef $Coro::AIO::WATCHER;
		2921	IO::AIO::max_poll_time $TICK * 0.1;
		2922	$AIO_POLL_WATCHER = Event->io (
		2923	reentrant => 0,
		2924	data => WF_AUTOCANCEL,
		2925	fd => IO::AIO::poll_fileno,
		2926	poll => 'r',
		2927	prio => 6,
		2928	cb => \&IO::AIO::poll_cb,
		2929	);
		2930	}
		2931
		2932	my $_log_backtrace;
		2933
		2934	sub _log_backtrace {
		2935	my ($msg, @addr) = @_;
		2936
		2937	$msg =~ s/\n//;
		2938
		2939	# limit the # of concurrent backtraces
		2940	if ($_log_backtrace < 2) {
		2941	++$_log_backtrace;
		2942	async {
		2943	my @bt = fork_call {
		2944	@addr = map { sprintf "%x", $_ } @addr;
		2945	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2946	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2947	or die "addr2line: $!";
		2948
		2949	my @funcs;
		2950	my @res = <$fh>;
		2951	chomp for @res;
		2952	while (@res) {
		2953	my ($func, $line) = splice @res, 0, 2, ();
		2954	push @funcs, "[$func] $line";
		2955	}
		2956
		2957	@funcs
		2958	};
		2959
		2960	LOG llevInfo, "[ABT] $msg\n";
		2961	LOG llevInfo, "[ABT] $_\n" for @bt;
		2962	--$_log_backtrace;
		2963	};
		2964	} else {
		2965	LOG llevInfo, "[ABT] $msg\n";
		2966	LOG llevInfo, "[ABT] [suppressed]\n";
		2967	}
		2968	}
		2969
		2970	# load additional modules
		2971	use cf::pod;
		2972
		2973	END { cf::emergency_save }
1590		2974
1591	1	2975	1
1592		2976

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