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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.133 by root, Thu Jan 4 16:19:32 2007 UTC vs.
Revision 1.279 by root, Mon Jun 11 22:16:53 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 $RANDOM_MAPS = cf::localdir . "/random";	91
55	our %EXT_CORO;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
56		98
57	binmode STDOUT;	99	binmode STDOUT;
58	binmode STDERR;	100	binmode STDERR;
59		101
60	# read virtual server time, if available	102	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
65	}	107	}
66		108
67	mkdir cf::localdir;	109	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		111
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
76		115
77	#############################################################################	116	#############################################################################
78		117
79	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
80		119
…		…
87	=item $cf::RUNTIME	126	=item $cf::RUNTIME
88		127
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	129	every server tick.
91		130
92	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		134
94	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
96		139
97	=item $cf::NOW	140	=item $cf::NOW
98		141
99	The time of the last (current) server tick.	142	The time of the last (current) server tick.
100		143
101	=item $cf::TICK	144	=item $cf::TICK
102		145
103	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
104		157
105	=item %cf::CFG	158	=item %cf::CFG
106		159
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
109		168
110	=back	169	=back
111		170
112	=cut	171	=cut
113		172
114	BEGIN {	173	BEGIN {
115	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	175	my $msg = join "", @_;
117	utf8::encode $msg;
118		176
119	$msg .= "\n"	177	$msg .= "\n"
120	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
121		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
123	};	184	};
124	}	185	}
125		186
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		194
133	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	196	# within the Safe compartment.
135	for my $pkg (qw(	197	for my $pkg (qw(
136	cf::global cf::attachable	198	cf::global cf::attachable
…		…
145		207
146	$Event::DIED = sub {	208	$Event::DIED = sub {
147	warn "error in event callback: @_";	209	warn "error in event callback: @_";
148	};	210	};
149		211
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
155		213
156	=over 4	214	=over 4
157		215
158	=cut	216	=item dumpval $ref
159		217
		218	=cut
		219
		220	sub dumpval {
		221	eval {
		222	local $SIG{__DIE__};
		223	my $d;
		224	if (1) {
		225	$d = new Data::Dumper([$_[0]], ["*var"]);
		226	$d->Terse(1);
		227	$d->Indent(2);
		228	$d->Quotekeys(0);
		229	$d->Useqq(1);
		230	#$d->Bless(...);
		231	$d->Seen($_[1]) if @_ > 1;
		232	$d = $d->Dump();
		233	}
		234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		235	$d
		236	} || "[unable to dump $_[0]: '$@']";
		237	}
		238
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
161		240
162	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
163		242
164	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
165		244
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
174		246
175	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
176		248
177	=cut
178
179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183
184	=item my $guard = cf::guard { BLOCK }
185
186	Run the given callback when the guard object gets destroyed (useful for
187	coroutine cancellations).
188
189	You can call C<< ->cancel >> on the guard object to stop the block from
190	being executed.
191
192	=cut
193
194	sub guard(&) {
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197
198	sub cf::guard::cancel {
199	${$_[0]} = sub { };
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}
205
206	=item cf::lock_wait $string	249	=item cf::lock_wait $string
207		250
208	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
209		252
210	=item my $lock = cf::lock_acquire $string	253	=item my $lock = cf::lock_acquire $string
211		254
212	Wait until the given lock is available and then acquires it and returns	255	Wait until the given lock is available and then acquires it and returns
213	a guard object. If the guard object gets destroyed (goes out of scope,	256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
214	for example when the coroutine gets canceled), the lock is automatically	257	for example when the coroutine gets canceled), the lock is automatically
215	returned.	258	returned.
216		259
217	Lock names should begin with a unique identifier (for example, cf::map::find	260	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
219		266
220	=cut	267	=cut
221		268
222	our %LOCK;	269	our %LOCK;
223		270
…		…
237	# wait, to be sure we are not locked	284	# wait, to be sure we are not locked
238	lock_wait $key;	285	lock_wait $key;
239		286
240	$LOCK{$key} = [];	287	$LOCK{$key} = [];
241		288
242	cf::guard {	289	Coro::guard {
243	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
244	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
245	}	292	}
246	}	293	}
247		294
248	=item cf::async { BLOCK }	295	sub lock_active($) {
249
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251	error instead of exiting the server in case of a problem.
252
253	=cut
254
255	sub async(&) {
256	my ($cb) = @_;	296	my ($key) = @_;
257		297
258	Coro::async {	298	! ! $LOCK{$key}
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}	299	}
263		300
264	sub freeze_mainloop {	301	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
266		303
267	my $guard = guard { $TICK_WATCHER->start };	304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
268	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
269	$guard	308	$guard
270	}	309	}
		310
		311	=item cf::async { BLOCK }
		312
		313	Currently the same as Coro::async_pool, meaning you cannot use
		314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		315	thing you are allowed to do is call C<prio> on it.
		316
		317	=cut
		318
		319	BEGIN { *async = \&Coro::async_pool }
271		320
272	=item cf::sync_job { BLOCK }	321	=item cf::sync_job { BLOCK }
273		322
274	The design of crossfire+ requires that the main coro ($Coro::main) is	323	The design of crossfire+ requires that the main coro ($Coro::main) is
275	always able to handle events or runnable, as crossfire+ is only partly	324	always able to handle events or runnable, as crossfire+ is only partly
…		…
284		333
285	sub sync_job(&) {	334	sub sync_job(&) {
286	my ($job) = @_;	335	my ($job) = @_;
287		336
288	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
289	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
291		342
292	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
293	# (but this is cancel-safe)	344	# (but this is cancel-safe)
294	my $freeze_guard = freeze_mainloop;	345	my $freeze_guard = freeze_mainloop;
295		346
296	my $busy = 1;	347	my $busy = 1;
297	my @res;	348	my @res;
298		349
299	(Coro::async {	350	(async {
300	@res = eval { $job->() };	351	@res = eval { $job->() };
301	warn $@ if $@;	352	warn $@ if $@;
302	undef $busy;	353	undef $busy;
303	})->prio (Coro::PRIO_MAX);	354	})->prio (Coro::PRIO_MAX);
304		355
305	while ($busy) {	356	while ($busy) {
306	Coro::cede_notself;	357	Coro::cede or Event::one_event;
307	Event::one_event unless Coro::nready;
308	}	358	}
		359
		360	$time = Event::time - $time;
		361
		362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		364
		365	$tick_start += $time; # do not account sync jobs to server load
309		366
310	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
311	} else {	368	} else {
312	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
313		370
314	$job->()	371	$job->()
315	}	372	}
316	}	373	}
317		374
318	=item $coro = cf::coro { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
319		376
320	Creates and returns a new coro. This coro is automcatially being canceled	377	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	378	extension calling this is being unloaded.
322		379
323	=cut	380	=cut
324		381
325	sub coro(&) {	382	sub async_ext(&) {
326	my $cb = shift;	383	my $cb = shift;
327		384
328	my $coro = &cf::async ($cb);	385	my $coro = &Coro::async ($cb);
329		386
330	$coro->on_destroy (sub {	387	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	388	delete $EXT_CORO{$coro+0};
332	});	389	});
333	$EXT_CORO{$coro+0} = $coro;	390	$EXT_CORO{$coro+0} = $coro;
334		391
335	$coro	392	$coro
336	}	393	}
337		394
338	sub write_runtime {	395	sub write_runtime {
339	my $runtime = cf::localdir . "/runtime";	396	my $runtime = "$LOCALDIR/runtime";
		397
		398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
		403	my $guard = cf::lock_acquire "write_runtime";
340		404
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
342	or return;	406	or return;
343		407
		408	my $value = $cf::RUNTIME + 90 + 10;
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;	413	and return;
347		414
		415	# always fsync - this file is important
348	aio_fsync $fh	416	aio_fsync $fh
349	and return;	417	and return;
350		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
351	close $fh	422	close $fh
352	or return;	423	or return;
353		424
354	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
355	and return;	426	and return;
356		427
		428	warn "runtime file written.\n";
		429
357	1	430	1
358	}	431	}
359		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
360	=back	444	=back
361		445
362	=cut	446	=cut
363
364	#############################################################################
365
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483		447
484	#############################################################################	448	#############################################################################
485		449
486	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
487		451
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	578	our @CB_MAP = ();
615		579
616	my %attachment;	580	my %attachment;
617		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
618	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
620		590
621	use sort 'stable';	591	use sort 'stable';
622		592
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
657		627
658	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		632
663	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	634	my $pkg = shift @arg;
665		635
666	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
707	if (ref $_[0]) {	677	if (ref $_[0]) {
708	_object_attach @_;	678	_object_attach @_;
709	} else {	679	} else {
710	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
711	}	681	}
		682	_recalc_want;
712	};	683	};
713		684
714	# all those should be optimised	685	# all those should be optimised
715	sub cf::attachable::detach {	686	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
720	reattach ($obj);	691	reattach ($obj);
721	} else {	692	} else {
722	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
723	}	694	}
		695	_recalc_want;
724	};	696	};
725		697
726	sub cf::attachable::attached {	698	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
728		700
…		…
793	# object support	765	# object support
794		766
795	sub reattach {	767	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		772
799	my $registry = $obj->registry;	773	my $registry = $obj->registry;
800		774
801	@$registry = ();	775	@$registry = ();
802		776
…		…
849	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
850		824
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	829	close $fh;
856		830
857	if (@$objs) {	831	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	837	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
865	}	839	}
866	} else {	840	} else {
867	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
899	or return;	873	or return;
900	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
901	}	875	}
902		876
903	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
905	return ($data, $av);	879	return ($data, $av);
906	}	880	}
907		881
908	#############################################################################	882	#############################################################################
909	# command handling &c	883	# command handling &c
…		…
934	=cut	908	=cut
935		909
936	sub register_extcmd {	910	sub register_extcmd {
937	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
938		912
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
943	}	914	}
944		915
945	cf::player->attach (	916	cf::player->attach (
946	on_command => sub {	917	on_command => sub {
947	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
960		931
961	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
962		933
963	if (ref $msg) {	934	if (ref $msg) {
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
966	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
967	}	938	}
968	}	939	}
969	} else {	940	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
972		943
973	cf::override;	944	cf::override;
974	},	945	},
975	);	946	);
976		947
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	948	sub load_extensions {
		949	cf::sync_job {
		950	my %todo;
		951
		952	for my $path (<$LIBDIR/*.ext>) {
		953	next unless -r $path;
		954
		955	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		956	my $base = $1;
		957	my $pkg = $1;
		958	$pkg =~ s/[^[:word:]]/_/g;
		959	$pkg = "ext::$pkg";
		960
		961	open my $fh, "<:utf8", $path
		962	or die "$path: $!";
		963
		964	my $source = do { local $/; <$fh> };
		965
		966	my %ext = (
		967	path => $path,
		968	base => $base,
		969	pkg => $pkg,
		970	);
		971
		972	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		973	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		974
		975	$ext{source} =
		976	"package $pkg; use strict; use utf8;\n"
		977	. "#line 1 \"$path\"\n{\n"
		978	. $source
		979	. "\n};\n1";
		980
		981	$todo{$base} = \%ext;
		982	}
		983
		984	my %done;
		985	while (%todo) {
		986	my $progress;
		987
		988	while (my ($k, $v) = each %todo) {
		989	for (split /,\s*/, $v->{meta}{depends}) {
		990	goto skip
		991	unless exists $done{$_};
		992	}
		993
		994	warn "... loading '$k' into '$v->{pkg}'\n";
		995
		996	unless (eval $v->{source}) {
		997	my $msg = $@ ? "$v->{path}: $@\n"
		998	: "$v->{base}: extension inactive.\n";
		999
		1000	if (exists $v->{meta}{mandatory}) {
		1001	warn $msg;
		1002	warn "mandatory extension failed to load, exiting.\n";
		1003	exit 1;
		1004	}
		1005
		1006	warn $msg;
		1007	}
		1008
		1009	$done{$k} = delete $todo{$k};
		1010	push @EXTS, $v->{pkg};
		1011	$progress = 1;
		1012	}
		1013
		1014	skip:
		1015	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1016	unless $progress;
		1017	}
		1018	};
		1019	}
		1020
		1021	#############################################################################
		1022
		1023	=head2 CORE EXTENSIONS
		1024
		1025	Functions and methods that extend core crossfire objects.
		1026
		1027	=cut
		1028
		1029	package cf::player;
		1030
		1031	use Coro::AIO;
		1032
		1033	=head3 cf::player
		1034
		1035	=over 4
		1036
		1037	=item cf::player::find $login
		1038
		1039	Returns the given player object, loading it if necessary (might block).
		1040
		1041	=cut
		1042
		1043	sub playerdir($) {
		1044	"$PLAYERDIR/"
		1045	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1046	}
		1047
		1048	sub path($) {
		1049	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1050
		1051	(playerdir $login) . "/playerdata"
		1052	}
		1053
		1054	sub find_active($) {
		1055	$cf::PLAYER{$_[0]}
		1056	and $cf::PLAYER{$_[0]}->active
		1057	and $cf::PLAYER{$_[0]}
		1058	}
		1059
		1060	sub exists($) {
		1061	my ($login) = @_;
		1062
		1063	$cf::PLAYER{$login}
		1064	or cf::sync_job { !aio_stat path $login }
		1065	}
		1066
		1067	sub find($) {
		1068	return $cf::PLAYER{$_[0]} || do {
		1069	my $login = $_[0];
		1070
		1071	my $guard = cf::lock_acquire "user_find:$login";
		1072
		1073	$cf::PLAYER{$_[0]} || do {
		1074	# rename old playerfiles to new ones
		1075	#TODO: remove when no longer required
		1076	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1077	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1078	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1079	aio_unlink +(playerdir $login) . "/$login.pl";
		1080
		1081	my $pl = load_pl path $login
		1082	or return;
		1083	$cf::PLAYER{$login} = $pl
		1084	}
		1085	}
		1086	}
		1087
		1088	sub save($) {
		1089	my ($pl) = @_;
		1090
		1091	return if $pl->{deny_save};
		1092
		1093	my $path = path $pl;
		1094	my $guard = cf::lock_acquire "user_save:$path";
		1095
		1096	return if $pl->{deny_save};
		1097
		1098	aio_mkdir playerdir $pl, 0770;
		1099	$pl->{last_save} = $cf::RUNTIME;
		1100
		1101	$pl->save_pl ($path);
		1102	Coro::cede;
		1103	}
		1104
		1105	sub new($) {
		1106	my ($login) = @_;
		1107
		1108	my $self = create;
		1109
		1110	$self->ob->name ($login);
		1111	$self->{deny_save} = 1;
		1112
		1113	$cf::PLAYER{$login} = $self;
		1114
		1115	$self
		1116	}
		1117
		1118	=item $pl->quit_character
		1119
		1120	Nukes the player without looking back. If logged in, the connection will
		1121	be destroyed. May block for a long time.
		1122
		1123	=cut
		1124
		1125	sub quit_character {
		1126	my ($pl) = @_;
		1127
		1128	my $name = $pl->ob->name;
		1129
		1130	$pl->{deny_save} = 1;
		1131	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1132
		1133	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1134	$pl->deactivate;
		1135	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1136	$pl->ns->destroy if $pl->ns;
		1137
		1138	my $path = playerdir $pl;
		1139	my $temp = "$path~$cf::RUNTIME~deleting~";
		1140	aio_rename $path, $temp;
		1141	delete $cf::PLAYER{$pl->ob->name};
		1142	$pl->destroy;
		1143
		1144	my $prefix = qr<^~\Q$name\E/>;
		1145
		1146	# nuke player maps
		1147	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1148
		1149	IO::AIO::aio_rmtree $temp;
		1150	}
		1151
		1152	=item $pl->kick
		1153
		1154	Kicks a player out of the game. This destroys the connection.
		1155
		1156	=cut
		1157
		1158	sub kick {
		1159	my ($pl, $kicker) = @_;
		1160
		1161	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1162	$pl->killer ("kicked");
		1163	$pl->ns->destroy;
		1164	}
		1165
		1166	=item cf::player::list_logins
		1167
		1168	Returns am arrayref of all valid playernames in the system, can take a
		1169	while and may block, so not sync_job-capable, ever.
		1170
		1171	=cut
		1172
		1173	sub list_logins {
		1174	my $dirs = aio_readdir $PLAYERDIR
		1175	or return [];
		1176
		1177	my @logins;
		1178
		1179	for my $login (@$dirs) {
		1180	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1181	aio_read $fh, 0, 512, my $buf, 0 or next;
		1182	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1183
		1184	utf8::decode $login;
		1185	push @logins, $login;
		1186	}
		1187
		1188	\@logins
		1189	}
		1190
		1191	=item $player->maps
		1192
		1193	Returns an arrayref of map paths that are private for this
		1194	player. May block.
		1195
		1196	=cut
		1197
		1198	sub maps($) {
		1199	my ($pl) = @_;
		1200
		1201	$pl = ref $pl ? $pl->ob->name : $pl;
		1202
		1203	my $files = aio_readdir playerdir $pl
		1204	or return;
		1205
		1206	my @paths;
		1207
		1208	for (@$files) {
		1209	utf8::decode $_;
		1210	next if /\.(?:pl|pst)$/;
		1211	next unless /^$PATH_SEP/o;
		1212
		1213	push @paths, cf::map::normalise "~$pl/$_";
		1214	}
		1215
		1216	\@paths
		1217	}
		1218
		1219	=item $player->ext_reply ($msgid, %msg)
		1220
		1221	Sends an ext reply to the player.
		1222
		1223	=cut
		1224
		1225	sub ext_reply($$%) {
		1226	my ($self, $id, %msg) = @_;
		1227
		1228	$msg{msgid} = $id;
		1229
		1230	$self->send ("ext " . cf::to_json \%msg);
		1231	}
		1232
		1233	=item $player->ext_event ($type, %msg)
		1234
		1235	Sends an ext event to the client.
		1236
		1237	=cut
		1238
		1239	sub ext_event($$%) {
		1240	my ($self, $type, %msg) = @_;
		1241
		1242	$self->ns->ext_event ($type, %msg);
		1243	}
		1244
		1245	=head3 cf::region
		1246
		1247	=over 4
		1248
		1249	=cut
		1250
		1251	package cf::region;
		1252
		1253	=item cf::region::find_by_path $path
		1254
		1255	Tries to decuce the probable region for a map knowing only its path.
		1256
		1257	=cut
		1258
		1259	sub find_by_path($) {
984	my ($path) = @_;	1260	my ($path) = @_;
985		1261
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1262	my ($match, $specificity);
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991		1263
992	warn "loading '$path' into '$pkg'\n";	1264	for my $region (list) {
993		1265	if ($region->match && $path =~ $region->match) {
994	open my $fh, "<:utf8", $path	1266	($match, $specificity) = ($region, $region->specificity)
995	or die "$path: $!";	1267	if $region->specificity > $specificity;
996		1268	}
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @exts, $pkg;
1008	$ext_pkg{$base} = $pkg;
1009
1010	# no strict 'refs';
1011	# @{"$pkg\::ISA"} = ext::;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }	1269	}
1026		1270
1027	# remove commands	1271	$match
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}
1036	}
1037
1038	# remove extcmds
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}
1052
1053	sub load_extensions {
1054	for my $ext (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;
1056	eval {
1057	load_extension $ext;
1058	1
1059	} or warn "$ext not loaded: $@";
1060	}
1061	}
1062
1063	#############################################################################
1064	# load/save/clean perl data associated with a map
1065
1066	*cf::mapsupport::on_clean = sub {
1067	my ($map) = @_;
1068
1069	my $path = $map->tmpname;
1070	defined $path or return;
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}
1083
1084	# TODO: compatibility cruft, remove when no longer needed
1085	cf::player->attach (
1086	on_load => sub {
1087	my ($pl, $path) = @_;
1088
1089	for my $o (all_objects $pl->ob) {
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091	$o->set_ob_key_value ("_perl_data");
1092
1093	%$o = %{ Storable::thaw pack "H*", $value };
1094	}
1095	}
1096	},
1097	);
1098
1099	#############################################################################
1100
1101	=head2 CORE EXTENSIONS
1102
1103	Functions and methods that extend core crossfire objects.
1104
1105	=head3 cf::player
1106
1107	=over 4
1108
1109	=item cf::player::exists $login
1110
1111	Returns true when the given account exists.
1112
1113	=cut
1114
1115	sub cf::player::exists($) {
1116	cf::player::find $_[0]
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1118	}
1119
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)
1121
1122	Sends an ext reply to the player.
1123
1124	=cut
1125
1126	sub cf::player::ext_reply($$$%) {
1127	my ($self, $id, %msg) = @_;
1128
1129	$msg{msgid} = $id;
1130
1131	$self->send ("ext " . to_json \%msg);
1132	}	1272	}
1133		1273
1134	=back	1274	=back
1135
1136		1275
1137	=head3 cf::map	1276	=head3 cf::map
1138		1277
1139	=over 4	1278	=over 4
1140		1279
…		…
1143	package cf::map;	1282	package cf::map;
1144		1283
1145	use Fcntl;	1284	use Fcntl;
1146	use Coro::AIO;	1285	use Coro::AIO;
1147		1286
		1287	use overload
		1288	'""' => \&as_string,
		1289	fallback => 1;
		1290
1148	our $MAX_RESET = 3600;	1291	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1292	our $DEFAULT_RESET = 3000;
1150		1293
1151	sub generate_random_map {	1294	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1295	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1296	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1297	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1298	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1299	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1300	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1301	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1302	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1303	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1304	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1305	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1306	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1307	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1308	(cf::region::find $rmp->{region}), $rmp->{custom}
		1309	)
		1310	}
		1311
		1312	=item cf::map->register ($regex, $prio)
		1313
		1314	Register a handler for the map path matching the given regex at the
		1315	givne priority (higher is better, built-in handlers have priority 0, the
		1316	default).
		1317
		1318	=cut
		1319
		1320	sub register {
		1321	my (undef, $regex, $prio) = @_;
		1322	my $pkg = caller;
		1323
		1324	no strict;
		1325	push @{"$pkg\::ISA"}, __PACKAGE__;
		1326
		1327	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1328	}
		1329
		1330	# also paths starting with '/'
		1331	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1332
		1333	sub thawer_merge {
		1334	my ($self, $merge) = @_;
		1335
		1336	# we have to keep some variables in memory intact
		1337	local $self->{path};
		1338	local $self->{load_path};
		1339
		1340	$self->SUPER::thawer_merge ($merge);
		1341	}
		1342
		1343	sub normalise {
		1344	my ($path, $base) = @_;
		1345
		1346	$path = "$path"; # make sure its a string
		1347
		1348	$path =~ s/\.map$//;
		1349
		1350	# map plan:
		1351	#
		1352	# /! non-realised random map exit (special hack!)
		1353	# {... are special paths that are not being touched
		1354	# ?xxx/... are special absolute paths
		1355	# ?random/... random maps
		1356	# /... normal maps
		1357	# ~user/... per-player map of a specific user
		1358
		1359	$path =~ s/$PATH_SEP/\//go;
		1360
		1361	# treat it as relative path if it starts with
		1362	# something that looks reasonable
		1363	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1364	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1365
		1366	$base =~ s{[^/]+/?$}{};
		1367	$path = "$base/$path";
		1368	}
		1369
		1370	for ($path) {
		1371	redo if s{//}{/};
		1372	redo if s{/\.?/}{/};
		1373	redo if s{/[^/]+/\.\./}{/};
		1374	}
		1375
		1376	$path
		1377	}
		1378
		1379	sub new_from_path {
		1380	my (undef, $path, $base) = @_;
		1381
		1382	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1383
		1384	$path = normalise $path, $base;
		1385
		1386	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1387	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1388	my $self = bless cf::map::new, $pkg;
		1389	$self->{path} = $path; $self->path ($path);
		1390	$self->init; # pass $1 etc.
		1391	return $self;
		1392	}
		1393	}
		1394
		1395	Carp::carp "unable to resolve path '$path' (base '$base').";
		1396	()
		1397	}
		1398
		1399	sub init {
		1400	my ($self) = @_;
		1401
		1402	$self
		1403	}
		1404
		1405	sub as_string {
		1406	my ($self) = @_;
		1407
		1408	"$self->{path}"
		1409	}
		1410
		1411	# the displayed name, this is a one way mapping
		1412	sub visible_name {
		1413	&as_string
		1414	}
		1415
		1416	# the original (read-only) location
		1417	sub load_path {
		1418	my ($self) = @_;
		1419
		1420	"$MAPDIR/$self->{path}.map"
		1421	}
		1422
		1423	# the temporary/swap location
		1424	sub save_path {
		1425	my ($self) = @_;
		1426
		1427	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1428	"$TMPDIR/$path.map"
		1429	}
		1430
		1431	# the unique path, undef == no special unique path
		1432	sub uniq_path {
		1433	my ($self) = @_;
		1434
		1435	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1436	"$UNIQUEDIR/$path"
1168	}	1437	}
1169		1438
1170	# and all this just because we cannot iterate over	1439	# and all this just because we cannot iterate over
1171	# all maps in C++...	1440	# all maps in C++...
1172	sub change_all_map_light {	1441	sub change_all_map_light {
…		…
1174		1443
1175	$_->change_map_light ($change)	1444	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1445	for grep $_->outdoor, values %cf::MAP;
1177	}	1446	}
1178		1447
		1448	sub decay_objects {
		1449	my ($self) = @_;
		1450
		1451	return if $self->{deny_reset};
		1452
		1453	$self->do_decay_objects;
		1454	}
		1455
		1456	sub unlink_save {
		1457	my ($self) = @_;
		1458
		1459	utf8::encode (my $save = $self->save_path);
		1460	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1461	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1462	}
		1463
1179	sub try_load_header($) {	1464	sub load_header_from($) {
1180	my ($path) = @_;	1465	my ($self, $path) = @_;
1181		1466
1182	utf8::encode $path;	1467	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1468	#aio_open $path, O_RDONLY, 0
		1469	# or return;
		1470
		1471	$self->_load_header ($path)
1184	or return;	1472	or return;
1185		1473
1186	my $map = cf::map::new	1474	$self->{load_path} = $path;
		1475
		1476	1
		1477	}
		1478
		1479	sub load_header_orig {
		1480	my ($self) = @_;
		1481
		1482	$self->load_header_from ($self->load_path)
		1483	}
		1484
		1485	sub load_header_temp {
		1486	my ($self) = @_;
		1487
		1488	$self->load_header_from ($self->save_path)
		1489	}
		1490
		1491	sub prepare_temp {
		1492	my ($self) = @_;
		1493
		1494	$self->last_access ((delete $self->{last_access})
		1495	|| $cf::RUNTIME); #d#
		1496	# safety
		1497	$self->{instantiate_time} = $cf::RUNTIME
		1498	if $self->{instantiate_time} > $cf::RUNTIME;
		1499	}
		1500
		1501	sub prepare_orig {
		1502	my ($self) = @_;
		1503
		1504	$self->{load_original} = 1;
		1505	$self->{instantiate_time} = $cf::RUNTIME;
		1506	$self->last_access ($cf::RUNTIME);
		1507	$self->instantiate;
		1508	}
		1509
		1510	sub load_header {
		1511	my ($self) = @_;
		1512
		1513	if ($self->load_header_temp) {
		1514	$self->prepare_temp;
		1515	} else {
		1516	$self->load_header_orig
1187	or return;	1517	or return;
		1518	$self->prepare_orig;
		1519	}
1188		1520
1189	$map->load_header ($path)	1521	$self->{deny_reset} = 1
1190	or return;	1522	if $self->no_reset;
1191		1523
1192	$map->{load_path} = $path;	1524	$self->default_region (cf::region::find_by_path $self->{path})
		1525	unless $self->default_region;
1193		1526
1194	$map	1527	1
1195	}	1528	}
1196		1529
1197	sub find;	1530	sub find;
1198	sub find {	1531	sub find {
1199	my ($path, $origin) = @_;	1532	my ($path, $origin) = @_;
1200		1533
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1534	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1535
1206	cf::lock_wait "map_find:$key";	1536	cf::lock_wait "map_find:$path";
1207		1537
1208	$cf::MAP{$key} || do {	1538	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1539	my $guard = cf::lock_acquire "map_find:$path";
1210		1540	my $map = new_from_path cf::map $path
1211	# do it the slow way
1212	my $map = try_load_header $path->save_path;
1213
1214	if ($map) {
1215	$map->last_access ((delete $map->{last_access})
1216	|| $cf::RUNTIME); #d#
1217	# safety
1218	$map->{instantiate_time} = $cf::RUNTIME
1219	if $map->{instantiate_time} > $cf::RUNTIME;
1220	} else {
1221	if (my $rmp = $path->random_map_params) {
1222	$map = generate_random_map $key, $rmp;
1223	} else {
1224	$map = try_load_header $path->load_path;
1225	}
1226
1227	$map or return;	1541	or return;
1228		1542
1229	$map->{load_original} = 1;
1230	$map->{instantiate_time} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232	$map->instantiate;
1233
1234	# per-player maps become, after loading, normal maps
1235	$map->per_player (0) if $path->{user_rel};
1236	}
1237
1238	$map->path ($key);
1239	$map->{path} = $path;
1240	$map->{last_save} = $cf::RUNTIME;	1543	$map->{last_save} = $cf::RUNTIME;
1241		1544
1242	if ($map->should_reset) {	1545	$map->load_header
		1546	or return;
		1547
		1548	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1549	# doing this can freeze the server in a sync job, obviously
		1550	#$cf::WAIT_FOR_TICK->wait;
1243	$map->reset;	1551	$map->reset;
1244	undef $guard;	1552	undef $guard;
1245	$map = find $path	1553	return find $path;
1246	or return;
1247	}	1554	}
1248		1555
1249	$cf::MAP{$key} = $map	1556	$cf::MAP{$path} = $map
1250	}	1557	}
1251	}	1558	}
		1559
		1560	sub pre_load { }
		1561	sub post_load { }
1252		1562
1253	sub load {	1563	sub load {
1254	my ($self) = @_;	1564	my ($self) = @_;
1255		1565
		1566	local $self->{deny_reset} = 1; # loading can take a long time
		1567
1256	my $path = $self->{path};	1568	my $path = $self->{path};
		1569
		1570	{
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1571	my $guard = cf::lock_acquire "map_load:$path";
1258		1572
1259	return if $self->in_memory != cf::MAP_SWAPPED;	1573	return if $self->in_memory != cf::MAP_SWAPPED;
1260		1574
1261	$self->in_memory (cf::MAP_LOADING);	1575	$self->in_memory (cf::MAP_LOADING);
1262		1576
1263	$self->alloc;	1577	$self->alloc;
		1578
		1579	$self->pre_load;
		1580	Coro::cede;
		1581
1264	$self->load_objects ($self->{load_path}, 1)	1582	$self->_load_objects ($self->{load_path}, 1)
1265	or return;	1583	or return;
1266		1584
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1585	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1268	if delete $self->{load_original};	1586	if delete $self->{load_original};
1269		1587
1270	if (my $uniq = $path->uniq_path) {	1588	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	1589	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	1590	if (aio_open $uniq, O_RDONLY, 0) {
1273	$self->clear_unique_items;	1591	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	1592	$self->_load_objects ($uniq, 0);
1275	}	1593	}
1276	}	1594	}
1277		1595
		1596	Coro::cede;
1278	# now do the right thing for maps	1597	# now do the right thing for maps
1279	$self->link_multipart_objects;	1598	$self->link_multipart_objects;
1280
1281	if ($self->{path}->is_style_map) {
1282	$self->{deny_save} = 1;
1283	$self->{deny_reset} = 1;
1284	} else {
1285	$self->fix_auto_apply;
1286	$self->decay_objects;
1287	$self->update_buttons;
1288	$self->set_darkness_map;
1289	$self->difficulty ($self->estimate_difficulty)	1599	$self->difficulty ($self->estimate_difficulty)
1290	unless $self->difficulty;	1600	unless $self->difficulty;
		1601	Coro::cede;
		1602
		1603	unless ($self->{deny_activate}) {
		1604	$self->decay_objects;
		1605	$self->fix_auto_apply;
		1606	$self->update_buttons;
		1607	Coro::cede;
		1608	$self->set_darkness_map;
		1609	Coro::cede;
1291	$self->activate;	1610	$self->activate;
1292	}	1611	}
1293		1612
1294	$self->in_memory (cf::MAP_IN_MEMORY);	1613	$self->in_memory (cf::MAP_IN_MEMORY);
		1614	}
		1615
		1616	$self->post_load;
		1617	}
		1618
		1619	sub customise_for {
		1620	my ($self, $ob) = @_;
		1621
		1622	return find "~" . $ob->name . "/" . $self->{path}
		1623	if $self->per_player;
		1624
		1625	# return find "?party/" . $ob->name . "/" . $self->{path}
		1626	# if $self->per_party;
		1627
		1628	$self
		1629	}
		1630
		1631	# find and load all maps in the 3x3 area around a map
		1632	sub load_diag {
		1633	my ($map) = @_;
		1634
		1635	my @diag; # diagonal neighbours
		1636
		1637	for (0 .. 3) {
		1638	my $neigh = $map->tile_path ($_)
		1639	or next;
		1640	$neigh = find $neigh, $map
		1641	or next;
		1642	$neigh->load;
		1643
		1644	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1645	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1646	}
		1647
		1648	for (@diag) {
		1649	my $neigh = find @$_
		1650	or next;
		1651	$neigh->load;
		1652	}
1295	}	1653	}
1296		1654
1297	sub find_sync {	1655	sub find_sync {
1298	my ($path, $origin) = @_;	1656	my ($path, $origin) = @_;
1299		1657
1300	cf::sync_job { cf::map::find $path, $origin }	1658	cf::sync_job { find $path, $origin }
1301	}	1659	}
1302		1660
1303	sub do_load_sync {	1661	sub do_load_sync {
1304	my ($map) = @_;	1662	my ($map) = @_;
1305		1663
1306	cf::sync_job { $map->load };	1664	cf::sync_job { $map->load };
1307	}	1665	}
1308		1666
		1667	our %MAP_PREFETCH;
		1668	our $MAP_PREFETCHER = undef;
		1669
		1670	sub find_async {
		1671	my ($path, $origin) = @_;
		1672
		1673	$path = normalise $path, $origin && $origin->{path};
		1674
		1675	if (my $map = $cf::MAP{$path}) {
		1676	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1677	}
		1678
		1679	undef $MAP_PREFETCH{$path};
		1680	$MAP_PREFETCHER ||= cf::async {
		1681	while (%MAP_PREFETCH) {
		1682	for my $path (keys %MAP_PREFETCH) {
		1683	my $map = find $path
		1684	or next;
		1685	$map->load;
		1686
		1687	delete $MAP_PREFETCH{$path};
		1688	}
		1689	}
		1690	undef $MAP_PREFETCHER;
		1691	};
		1692	$MAP_PREFETCHER->prio (6);
		1693
		1694	()
		1695	}
		1696
1309	sub save {	1697	sub save {
1310	my ($self) = @_;	1698	my ($self) = @_;
1311		1699
		1700	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1701
1312	$self->{last_save} = $cf::RUNTIME;	1702	$self->{last_save} = $cf::RUNTIME;
1313		1703
1314	return unless $self->dirty;	1704	return unless $self->dirty;
1315		1705
1316	my $save = $self->{path}->save_path; utf8::encode $save;	1706	my $save = $self->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1707	my $uniq = $self->uniq_path; utf8::encode $uniq;
1318		1708
1319	$self->{load_path} = $save;	1709	$self->{load_path} = $save;
1320		1710
1321	return if $self->{deny_save};	1711	return if $self->{deny_save};
1322		1712
1323	local $self->{last_access} = $self->last_access;#d#	1713	local $self->{last_access} = $self->last_access;#d#
1324		1714
		1715	cf::async {
		1716	$_->contr->save for $self->players;
		1717	};
		1718
1325	if ($uniq) {	1719	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1720	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);	1721	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {	1722	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1723	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}	1724	}
1331	}	1725	}
1332		1726
1333	sub swap_out {	1727	sub swap_out {
1334	my ($self) = @_;	1728	my ($self) = @_;
1335		1729
1336	# save first because save cedes	1730	# save first because save cedes
1337	$self->save;	1731	$self->save;
		1732
		1733	my $lock = cf::lock_acquire "map_data:" . $self->path;
1338		1734
1339	return if $self->players;	1735	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;	1736	return if $self->in_memory != cf::MAP_IN_MEMORY;
1341	return if $self->{deny_save};	1737	return if $self->{deny_save};
1342		1738
…		…
1346		1742
1347	sub reset_at {	1743	sub reset_at {
1348	my ($self) = @_;	1744	my ($self) = @_;
1349		1745
1350	# TODO: safety, remove and allow resettable per-player maps	1746	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};
1352	return 1e99 if $self->{deny_reset};	1747	return 1e99 if $self->{deny_reset};
1353		1748
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1749	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1750	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		1751
…		…
1361	my ($self) = @_;	1756	my ($self) = @_;
1362		1757
1363	$self->reset_at <= $cf::RUNTIME	1758	$self->reset_at <= $cf::RUNTIME
1364	}	1759	}
1365		1760
1366	sub unlink_save {
1367	my ($self) = @_;
1368
1369	utf8::encode (my $save = $self->{path}->save_path);
1370	aioreq_pri 3; IO::AIO::aio_unlink $save;
1371	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1372	}
1373
1374	sub rename {
1375	my ($self, $new_path) = @_;
1376
1377	$self->unlink_save;
1378
1379	delete $cf::MAP{$self->path};
1380	$self->{path} = new cf::path $new_path;
1381	$self->path ($self->{path}->as_string);
1382	$cf::MAP{$self->path} = $self;
1383
1384	$self->save;
1385	}
1386
1387	sub reset {	1761	sub reset {
1388	my ($self) = @_;	1762	my ($self) = @_;
1389		1763
		1764	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1765
1390	return if $self->players;	1766	return if $self->players;
1391	return if $self->{path}{user_rel};#d#
1392		1767
1393	warn "resetting map ", $self->path;#d#	1768	warn "resetting map ", $self->path;
		1769
		1770	$self->in_memory (cf::MAP_SWAPPED);
		1771
		1772	# need to save uniques path
		1773	unless ($self->{deny_save}) {
		1774	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1775
		1776	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1777	if $uniq;
		1778	}
1394		1779
1395	delete $cf::MAP{$self->path};	1780	delete $cf::MAP{$self->path};
		1781
		1782	$self->clear;
1396		1783
1397	$_->clear_links_to ($self) for values %cf::MAP;	1784	$_->clear_links_to ($self) for values %cf::MAP;
1398		1785
1399	$self->unlink_save;	1786	$self->unlink_save;
1400	$self->destroy;	1787	$self->destroy;
…		…
1403	my $nuke_counter = "aaaa";	1790	my $nuke_counter = "aaaa";
1404		1791
1405	sub nuke {	1792	sub nuke {
1406	my ($self) = @_;	1793	my ($self) = @_;
1407		1794
		1795	delete $cf::MAP{$self->path};
		1796
		1797	$self->unlink_save;
		1798
		1799	bless $self, "cf::map";
		1800	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	1801	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	1802	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	1803	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1804
		1805	$cf::MAP{$self->path} = $self;
		1806
1411	$self->reset; # polite request, might not happen	1807	$self->reset; # polite request, might not happen
1412	}	1808	}
1413		1809
1414	sub customise_for {	1810	=item $maps = cf::map::tmp_maps
1415	my ($map, $ob) = @_;
1416		1811
1417	if ($map->per_player) {	1812	Returns an arrayref with all map paths of currently instantiated and saved
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1813	maps. May block.
		1814
		1815	=cut
		1816
		1817	sub tmp_maps() {
1419	}	1818	[
1420		1819	map {
1421	$map	1820	utf8::decode $_;
		1821	/\.map$/
		1822	? normalise $_
		1823	: ()
		1824	} @{ aio_readdir $TMPDIR or [] }
		1825	]
1422	}	1826	}
1423		1827
1424	sub emergency_save {	1828	=item $maps = cf::map::random_maps
1425	my $freeze_guard = cf::freeze_mainloop;
1426		1829
1427	warn "enter emergency map save\n";	1830	Returns an arrayref with all map paths of currently instantiated and saved
		1831	random maps. May block.
1428		1832
1429	cf::sync_job {	1833	=cut
1430	warn "begin emergency map save\n";
1431	$_->save for values %cf::MAP;
1432	};
1433		1834
1434	warn "end emergency map save\n";	1835	sub random_maps() {
		1836	[
		1837	map {
		1838	utf8::decode $_;
		1839	/\.map$/
		1840	? normalise "?random/$_"
		1841	: ()
		1842	} @{ aio_readdir $RANDOMDIR or [] }
		1843	]
		1844	}
		1845
		1846	=item cf::map::unique_maps
		1847
		1848	Returns an arrayref of paths of all shared maps that have
		1849	instantiated unique items. May block.
		1850
		1851	=cut
		1852
		1853	sub unique_maps() {
		1854	[
		1855	map {
		1856	utf8::decode $_;
		1857	/\.map$/
		1858	? normalise $_
		1859	: ()
		1860	} @{ aio_readdir $UNIQUEDIR or [] }
		1861	]
1435	}	1862	}
1436		1863
1437	package cf;	1864	package cf;
1438		1865
1439	=back	1866	=back
1440		1867
		1868	=head3 cf::object
		1869
		1870	=cut
		1871
		1872	package cf::object;
		1873
		1874	=over 4
		1875
		1876	=item $ob->inv_recursive
		1877
		1878	Returns the inventory of the object _and_ their inventories, recursively.
		1879
		1880	=cut
		1881
		1882	sub inv_recursive_;
		1883	sub inv_recursive_ {
		1884	map { $_, inv_recursive_ $_->inv } @_
		1885	}
		1886
		1887	sub inv_recursive {
		1888	inv_recursive_ inv $_[0]
		1889	}
		1890
		1891	package cf;
		1892
		1893	=back
1441		1894
1442	=head3 cf::object::player	1895	=head3 cf::object::player
1443		1896
1444	=over 4	1897	=over 4
1445		1898
…		…
1485		1938
1486	=item $player_object->enter_link	1939	=item $player_object->enter_link
1487		1940
1488	Freezes the player and moves him/her to a special map (C<{link}>).	1941	Freezes the player and moves him/her to a special map (C<{link}>).
1489		1942
1490	The player should be reaosnably safe there for short amounts of time. You	1943	The player should be reasonably safe there for short amounts of time. You
1491	I<MUST> call C<leave_link> as soon as possible, though.	1944	I<MUST> call C<leave_link> as soon as possible, though.
1492		1945
		1946	Will never block.
		1947
1493	=item $player_object->leave_link ($map, $x, $y)	1948	=item $player_object->leave_link ($map, $x, $y)
1494		1949
1495	Moves the player out of the specila link map onto the given map. If the	1950	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	1951	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	1952	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	1953	fails, to the emergency map position.
1499		1954
1500	Might block.	1955	Might block.
1501		1956
1502	=cut	1957	=cut
		1958
		1959	sub link_map {
		1960	unless ($LINK_MAP) {
		1961	$LINK_MAP = cf::map::find "{link}"
		1962	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1963	$LINK_MAP->load;
		1964	}
		1965
		1966	$LINK_MAP
		1967	}
1503		1968
1504	sub cf::object::player::enter_link {	1969	sub cf::object::player::enter_link {
1505	my ($self) = @_;	1970	my ($self) = @_;
1506		1971
1507	$self->deactivate_recursive;	1972	$self->deactivate_recursive;
1508		1973
1509	return if $self->map == $LINK_MAP;	1974	return if UNIVERSAL::isa $self->map, "ext::map_link";
1510		1975
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1976	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	1977	if $self->map && $self->map->{path} ne "{link}";
1513		1978
1514	$self->enter_map ($LINK_MAP, 20, 20);	1979	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1515	}	1980	}
1516		1981
1517	sub cf::object::player::leave_link {	1982	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	1983	my ($self, $map, $x, $y) = @_;
		1984
		1985	return unless $self->contr->active;
1519		1986
1520	my $link_pos = delete $self->{_link_pos};	1987	my $link_pos = delete $self->{_link_pos};
1521		1988
1522	unless ($map) {	1989	unless ($map) {
1523	# restore original map position	1990	# restore original map position
…		…
1537	# use -1 or undef as default coordinates, not 0, 0	2004	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	2005	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	2006	if $x <=0 && $y <= 0;
1540		2007
1541	$map->load;	2008	$map->load;
		2009	$map->load_diag;
1542		2010
		2011	return unless $self->contr->active;
1543	$self->activate_recursive;	2012	$self->activate_recursive;
		2013
		2014	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1544	$self->enter_map ($map, $x, $y);	2015	$self->enter_map ($map, $x, $y);
1545	}	2016	}
1546		2017
1547	cf::player->attach (
1548	on_logout => sub {
1549	my ($pl) = @_;
1550
1551	# abort map switching before logout
1552	if ($pl->ob->{_link_pos}) {
1553	cf::sync_job {
1554	$pl->ob->leave_link
1555	};
1556	}
1557	},
1558	on_login => sub {
1559	my ($pl) = @_;
1560
1561	# try to abort aborted map switching on player login :)
1562	# should happen only on crashes
1563	if ($pl->ob->{_link_pos}) {
1564	$pl->ob->enter_link;
1565	cf::async {
1566	# we need this sleep as the login has a concurrent enter_exit running
1567	# and this sleep increases chances of the player not ending up in scorn
1568	Coro::Timer::sleep 1;
1569	$pl->ob->leave_link;
1570	};
1571	}
1572	},
1573	);
1574
1575	=item $player_object->goto_map ($path, $x, $y)	2018	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1576		2019
1577	=cut	2020	Moves the player to the given map-path and coordinates by first freezing
		2021	her, loading and preparing them map, calling the provided $check callback
		2022	that has to return the map if sucecssful, and then unfreezes the player on
		2023	the new (success) or old (failed) map position.
1578		2024
		2025	=cut
		2026
		2027	our $GOTOGEN;
		2028
1579	sub cf::object::player::goto_map {	2029	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	2030	my ($self, $path, $x, $y, $check) = @_;
		2031
		2032	# do generation counting so two concurrent goto's will be executed in-order
		2033	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1581		2034
1582	$self->enter_link;	2035	$self->enter_link;
1583		2036
1584	(cf::async {	2037	(async {
1585	$path = new cf::path $path;	2038	my $map = eval {
1586
1587	my $map = cf::map::find $path->as_string;	2039	my $map = cf::map::find $path;
		2040
		2041	if ($map) {
1588	$map = $map->customise_for ($self) if $map;	2042	$map = $map->customise_for ($self);
1589		2043	$map = $check->($map) if $check && $map;
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	2044	} else {
1591	# if $map;
1592
1593	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2045	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2046	}
1594		2047
		2048	$map
		2049	};
		2050
		2051	if ($@) {
		2052	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2053	LOG llevError | logBacktrace, Carp::longmess $@;
		2054	}
		2055
		2056	if ($gen == $self->{_goto_generation}) {
		2057	delete $self->{_goto_generation};
1595	$self->leave_link ($map, $x, $y);	2058	$self->leave_link ($map, $x, $y);
		2059	}
1596	})->prio (1);	2060	})->prio (1);
1597	}	2061	}
1598		2062
1599	=item $player_object->enter_exit ($exit_object)	2063	=item $player_object->enter_exit ($exit_object)
1600		2064
…		…
1602		2066
1603	sub parse_random_map_params {	2067	sub parse_random_map_params {
1604	my ($spec) = @_;	2068	my ($spec) = @_;
1605		2069
1606	my $rmp = { # defaults	2070	my $rmp = { # defaults
1607	xsize => 10,	2071	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	2072	ysize => (cf::rndm 15, 40),
		2073	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2074	#layout => string,
1609	};	2075	};
1610		2076
1611	for (split /\n/, $spec) {	2077	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	2078	my ($k, $v) = split /\s+/, $_, 2;
1613		2079
…		…
1617	$rmp	2083	$rmp
1618	}	2084	}
1619		2085
1620	sub prepare_random_map {	2086	sub prepare_random_map {
1621	my ($exit) = @_;	2087	my ($exit) = @_;
		2088
		2089	my $guard = cf::lock_acquire "exit_prepare:$exit";
1622		2090
1623	# all this does is basically replace the /! path by	2091	# all this does is basically replace the /! path by
1624	# a new random map path (?random/...) with a seed	2092	# a new random map path (?random/...) with a seed
1625	# that depends on the exit object	2093	# that depends on the exit object
1626		2094
1627	my $rmp = parse_random_map_params $exit->msg;	2095	my $rmp = parse_random_map_params $exit->msg;
1628		2096
1629	if ($exit->map) {	2097	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	2098	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	2099	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	2100	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	2101	$rmp->{origin_y} = $exit->y;
1634	}	2102	}
1635		2103
1636	$rmp->{random_seed} ||= $exit->random_seed;	2104	$rmp->{random_seed} ||= $exit->random_seed;
1637		2105
1638	my $data = cf::to_json $rmp;	2106	my $data = cf::to_json $rmp;
1639	my $md5 = Digest::MD5::md5_hex $data;	2107	my $md5 = Digest::MD5::md5_hex $data;
		2108	my $meta = "$RANDOMDIR/$md5.meta";
1640		2109
1641	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2110	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1642	aio_write $fh, 0, (length $data), $data, 0;	2111	aio_write $fh, 0, (length $data), $data, 0;
		2112	undef $fh;
		2113	aio_rename "$meta~", $meta;
1643		2114
1644	$exit->slaying ("?random/$md5");	2115	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	2116	$exit->msg (undef);
1646	}	2117	}
1647	}	2118	}
…		…
1649	sub cf::object::player::enter_exit {	2120	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	2121	my ($self, $exit) = @_;
1651		2122
1652	return unless $self->type == cf::PLAYER;	2123	return unless $self->type == cf::PLAYER;
1653		2124
		2125	if ($exit->slaying eq "/!") {
		2126	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2127	# the problem is that $exit might not survive long enough
		2128	# so it needs to be done right now, right here
		2129	cf::sync_job { prepare_random_map $exit };
		2130	}
		2131
		2132	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2133	my $hp = $exit->stats->hp;
		2134	my $sp = $exit->stats->sp;
		2135
1654	$self->enter_link;	2136	$self->enter_link;
1655		2137
1656	(cf::async {	2138	(async {
1657	$self->deactivate_recursive; # just to be sure	2139	$self->deactivate_recursive; # just to be sure
1658	unless (eval {	2140	unless (eval {
1659	prepare_random_map $exit	2141	$self->goto ($slaying, $hp, $sp);
1660	if $exit->slaying eq "/!";
1661
1662	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1663	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1664		2142
1665	1;	2143	1;
1666	}) {	2144	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	2145	$self->message ("Something went wrong deep within the crossfire server. "
1668	. "I'll try to bring you back to the map you were before. "	2146	. "I'll try to bring you back to the map you were before. "
1669	. "Please report this to the dungeon master",	2147	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	2148	cf::NDI_UNIQUE | cf::NDI_RED);
1671		2149
1672	warn "ERROR in enter_exit: $@";	2150	warn "ERROR in enter_exit: $@";
1673	$self->leave_link;	2151	$self->leave_link;
1674	}	2152	}
1675	})->prio (1);	2153	})->prio (1);
…		…
1688		2166
1689	sub cf::client::send_drawinfo {	2167	sub cf::client::send_drawinfo {
1690	my ($self, $text, $flags) = @_;	2168	my ($self, $text, $flags) = @_;
1691		2169
1692	utf8::encode $text;	2170	utf8::encode $text;
1693	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2171	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1694	}	2172	}
1695		2173
		2174	=item $client->ext_event ($type, %msg)
		2175
		2176	Sends an exti event to the client.
		2177
		2178	=cut
		2179
		2180	sub cf::client::ext_event($$%) {
		2181	my ($self, $type, %msg) = @_;
		2182
		2183	$msg{msgtype} = "event_$type";
		2184	$self->send_packet ("ext " . cf::to_json \%msg);
		2185	}
1696		2186
1697	=item $success = $client->query ($flags, "text", \&cb)	2187	=item $success = $client->query ($flags, "text", \&cb)
1698		2188
1699	Queues a query to the client, calling the given callback with	2189	Queues a query to the client, calling the given callback with
1700	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2190	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1729	# get handled first	2219	# get handled first
1730	my $queue = delete $ns->{query_queue}	2220	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	2221	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		2222
1733	(shift @$queue)->[1]->($msg);	2223	(shift @$queue)->[1]->($msg);
		2224	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		2225
1735	push @{ $ns->{query_queue} }, @$queue;	2226	push @{ $ns->{query_queue} }, @$queue;
1736		2227
1737	if (@{ $ns->{query_queue} } == @$queue) {	2228	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	2229	if (@$queue) {
…		…
1742	}	2233	}
1743	}	2234	}
1744	},	2235	},
1745	);	2236	);
1746		2237
1747	=item $client->coro (\&cb)	2238	=item $client->async (\&cb)
1748		2239
1749	Create a new coroutine, running the specified callback. The coroutine will	2240	Create a new coroutine, running the specified callback. The coroutine will
1750	be automatically cancelled when the client gets destroyed (e.g. on logout,	2241	be automatically cancelled when the client gets destroyed (e.g. on logout,
1751	or loss of connection).	2242	or loss of connection).
1752		2243
1753	=cut	2244	=cut
1754		2245
1755	sub cf::client::coro {	2246	sub cf::client::async {
1756	my ($self, $cb) = @_;	2247	my ($self, $cb) = @_;
1757		2248
1758	my $coro = &cf::async ($cb);	2249	my $coro = &Coro::async ($cb);
1759		2250
1760	$coro->on_destroy (sub {	2251	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	2252	delete $self->{_coro}{$coro+0};
1762	});	2253	});
1763		2254
…		…
1796		2287
1797	# here we export the classes and methods available to script code	2288	# here we export the classes and methods available to script code
1798		2289
1799	=pod	2290	=pod
1800		2291
1801	The following fucntions and emthods are available within a safe environment:	2292	The following functions and methods are available within a safe environment:
1802		2293
1803	cf::object contr pay_amount pay_player map	2294	cf::object contr pay_amount pay_player map
1804	cf::object::player player	2295	cf::object::player player
1805	cf::player peaceful	2296	cf::player peaceful
1806	cf::map trigger	2297	cf::map trigger
…		…
1891	#############################################################################	2382	#############################################################################
1892		2383
1893	=head2 EXTENSION DATABASE SUPPORT	2384	=head2 EXTENSION DATABASE SUPPORT
1894		2385
1895	Crossfire maintains a very simple database for extension use. It can	2386	Crossfire maintains a very simple database for extension use. It can
1896	currently store anything that can be serialised using Storable, which	2387	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1897	excludes objects.	2388	convert to/from binary).
1898		2389
1899	The parameter C<$family> should best start with the name of the extension	2390	The parameter C<$family> should best start with the name of the extension
1900	using it, it should be unique.	2391	using it, it should be unique.
1901		2392
1902	=over 4	2393	=over 4
1903		2394
1904	=item $hashref = cf::db_get $family
1905
1906	Return a hashref for use by the extension C<$family>, which can be
1907	modified. After modifications, you have to call C<cf::db_dirty> or
1908	C<cf::db_sync>.
1909
1910	=item $value = cf::db_get $family => $key	2395	=item $value = cf::db_get $family => $key
1911		2396
1912	Returns a single value from the database	2397	Returns a single value from the database.
1913
1914	=item cf::db_put $family => $hashref
1915
1916	Stores the given family hashref into the database. Updates are delayed, if
1917	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1918		2398
1919	=item cf::db_put $family => $key => $value	2399	=item cf::db_put $family => $key => $value
1920		2400
1921	Stores the given C<$value> in the family hash. Updates are delayed, if you	2401	Stores the given C<$value> in the family.
1922	want the data to be synced to disk immediately, use C<cf::db_sync>.
1923
1924	=item cf::db_dirty
1925
1926	Marks the database as dirty, to be updated at a later time.
1927
1928	=item cf::db_sync
1929
1930	Immediately write the database to disk I<if it is dirty>.
1931		2402
1932	=cut	2403	=cut
1933		2404
1934	our $DB;	2405	our $DB;
1935		2406
1936	{	2407	sub db_init {
1937	my $path = cf::localdir . "/database.pst";	2408	unless ($DB) {
		2409	$DB = BDB::db_create $DB_ENV;
1938		2410
1939	sub db_load() {	2411	cf::sync_job {
1940	$DB = stat $path ? Storable::retrieve $path : { };	2412	eval {
1941	}	2413	$DB->set_flags (BDB::CHKSUM);
1942		2414
1943	my $pid;	2415	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1944		2416	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1945	sub db_save() {	2417	cf::cleanup "db_open(db): $!" if $!;
1946	waitpid $pid, 0 if $pid;	2418	};
1947	if (0 == ($pid = fork)) {	2419	cf::cleanup "db_open(db): $@" if $@;
1948	$DB->{_meta}{version} = 1;
1949	Storable::nstore $DB, "$path~";
1950	rename "$path~", $path;
1951	cf::_exit 0 if defined $pid;
1952	}	2420	};
1953	}
1954
1955	my $dirty;
1956
1957	sub db_sync() {
1958	db_save if $dirty;
1959	undef $dirty;
1960	}
1961
1962	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1963	db_sync;
1964	});	2421	}
		2422	}
1965		2423
1966	sub db_dirty() {
1967	$dirty = 1;
1968	$idle->start;
1969	}
1970
1971	sub db_get($;$) {	2424	sub db_get($$) {
1972	@_ >= 2	2425	my $key = "$_[0]/$_[1]";
1973	? $DB->{$_[0]}{$_[1]}
1974	: ($DB->{$_[0]} ||= { })
1975	}
1976		2426
		2427	cf::sync_job {
		2428	BDB::db_get $DB, undef, $key, my $data;
		2429
		2430	$! ? ()
		2431	: $data
		2432	}
		2433	}
		2434
1977	sub db_put($$;$) {	2435	sub db_put($$$) {
1978	if (@_ >= 3) {	2436	BDB::dbreq_pri 4;
1979	$DB->{$_[0]}{$_[1]} = $_[2];	2437	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1980	} else {	2438	}
1981	$DB->{$_[0]} = $_[1];
1982	}
1983	db_dirty;
1984	}
1985		2439
1986	cf::global->attach (	2440	=item cf::cache $id => [$paths...], $processversion => $process
1987	prio => 10000,	2441
1988	on_cleanup => sub {	2442	Generic caching function that returns the value of the resource $id,
1989	db_sync;	2443	caching and regenerating as required.
		2444
		2445	This function can block.
		2446
		2447	=cut
		2448
		2449	sub cache {
		2450	my ($id, $src, $processversion, $process) = @_;
		2451
		2452	my $meta =
		2453	join "\x00",
		2454	$processversion,
		2455	map {
		2456	aio_stat $_
		2457	and Carp::croak "$_: $!";
		2458
		2459	($_, (stat _)[7,9])
		2460	} @$src;
		2461
		2462	my $dbmeta = db_get cache => "$id/meta";
		2463	if ($dbmeta ne $meta) {
		2464	# changed, we may need to process
		2465
		2466	my @data;
		2467	my $md5;
		2468
		2469	for (0 .. $#$src) {
		2470	0 <= aio_load $src->[$_], $data[$_]
		2471	or Carp::croak "$src->[$_]: $!";
1990	},	2472	}
1991	);	2473
		2474	# if processing is expensive, check
		2475	# checksum first
		2476	if (1) {
		2477	$md5 =
		2478	join "\x00",
		2479	$processversion,
		2480	map {
		2481	Coro::cede;
		2482	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2483	} 0.. $#$src;
		2484
		2485
		2486	my $dbmd5 = db_get cache => "$id/md5";
		2487	if ($dbmd5 eq $md5) {
		2488	db_put cache => "$id/meta", $meta;
		2489
		2490	return db_get cache => "$id/data";
		2491	}
		2492	}
		2493
		2494	my $t1 = Time::HiRes::time;
		2495	my $data = $process->(\@data);
		2496	my $t2 = Time::HiRes::time;
		2497
		2498	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2499
		2500	db_put cache => "$id/data", $data;
		2501	db_put cache => "$id/md5" , $md5;
		2502	db_put cache => "$id/meta", $meta;
		2503
		2504	return $data;
		2505	}
		2506
		2507	db_get cache => "$id/data"
		2508	}
		2509
		2510	=item fork_call { }, $args
		2511
		2512	Executes the given code block with the given arguments in a seperate
		2513	process, returning the results. Everything must be serialisable with
		2514	Coro::Storable. May, of course, block. Note that the executed sub may
		2515	never block itself or use any form of Event handling.
		2516
		2517	=cut
		2518
		2519	sub fork_call(&@) {
		2520	my ($cb, @args) = @_;
		2521
		2522	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2523	# or die "socketpair: $!";
		2524	pipe my $fh1, my $fh2
		2525	or die "pipe: $!";
		2526
		2527	if (my $pid = fork) {
		2528	close $fh2;
		2529
		2530	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2531	$res = Coro::Storable::thaw $res;
		2532
		2533	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2534
		2535	die $$res unless "ARRAY" eq ref $res;
		2536
		2537	return wantarray ? @$res : $res->[-1];
		2538	} else {
		2539	reset_signals;
		2540	local $SIG{__WARN__};
		2541	local $SIG{__DIE__};
		2542	eval {
		2543	close $fh1;
		2544
		2545	my @res = eval { $cb->(@args) };
		2546	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2547	};
		2548
		2549	warn $@ if $@;
		2550	_exit 0;
		2551	}
1992	}	2552	}
1993		2553
1994	#############################################################################	2554	#############################################################################
1995	# the server's main()	2555	# the server's init and main functions
		2556
		2557	sub load_facedata($) {
		2558	my ($path) = @_;
		2559
		2560	warn "loading facedata from $path\n";
		2561
		2562	my $facedata;
		2563	0 < aio_load $path, $facedata
		2564	or die "$path: $!";
		2565
		2566	$facedata = Coro::Storable::thaw $facedata;
		2567
		2568	$facedata->{version} == 2
		2569	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2570
		2571	{
		2572	my $faces = $facedata->{faceinfo};
		2573
		2574	while (my ($face, $info) = each %$faces) {
		2575	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2576	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2577	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2578	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2579	Coro::cede;
		2580	}
		2581
		2582	while (my ($face, $info) = each %$faces) {
		2583	next unless $info->{smooth};
		2584	my $idx = cf::face::find $face
		2585	or next;
		2586	if (my $smooth = cf::face::find $info->{smooth}) {
		2587	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2588	} else {
		2589	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2590	}
		2591	Coro::cede;
		2592	}
		2593	}
		2594
		2595	{
		2596	my $anims = $facedata->{animinfo};
		2597
		2598	while (my ($anim, $info) = each %$anims) {
		2599	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2600	Coro::cede;
		2601	}
		2602
		2603	cf::anim::invalidate_all; # d'oh
		2604	}
		2605
		2606	1
		2607	}
		2608
		2609	sub reload_regions {
		2610	load_resource_file "$MAPDIR/regions"
		2611	or die "unable to load regions file\n";
		2612	}
		2613
		2614	sub reload_facedata {
		2615	load_facedata "$DATADIR/facedata"
		2616	or die "unable to load facedata\n";
		2617	}
		2618
		2619	sub reload_archetypes {
		2620	load_resource_file "$DATADIR/archetypes"
		2621	or die "unable to load archetypes\n";
		2622	}
		2623
		2624	sub reload_treasures {
		2625	load_resource_file "$DATADIR/treasures"
		2626	or die "unable to load treasurelists\n";
		2627	}
		2628
		2629	sub reload_resources {
		2630	warn "reloading resource files...\n";
		2631
		2632	reload_regions;
		2633	reload_facedata;
		2634	#reload_archetypes;#d#
		2635	reload_archetypes;
		2636	reload_treasures;
		2637
		2638	warn "finished reloading resource files\n";
		2639	}
		2640
		2641	sub init {
		2642	reload_resources;
		2643	}
1996		2644
1997	sub cfg_load {	2645	sub cfg_load {
1998	open my $fh, "<:utf8", cf::confdir . "/config"	2646	open my $fh, "<:utf8", "$CONFDIR/config"
1999	or return;	2647	or return;
2000		2648
2001	local $/;	2649	local $/;
2002	*CFG = YAML::Syck::Load <$fh>;	2650	*CFG = YAML::Syck::Load <$fh>;
2003		2651
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2652	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2005		2653
		2654	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2655	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2656
2006	if (exists $CFG{mlockall}) {	2657	if (exists $CFG{mlockall}) {
2007	eval {	2658	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	2659	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	2660	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	2661	};
2011	warn $@ if $@;	2662	warn $@ if $@;
2012	}	2663	}
2013	}	2664	}
2014		2665
2015	sub main {	2666	sub main {
2016	# we must not ever block the main coroutine	2667	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	2668	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2669	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	2670	(async {
2020	Event::one_event;	2671	Event::one_event;
2021	})->();	2672	})->prio (Coro::PRIO_MAX);
2022	};	2673	};
2023		2674
2024	cfg_load;	2675	cfg_load;
2025	db_load;	2676	db_init;
2026	load_extensions;	2677	load_extensions;
		2678
		2679	$TICK_WATCHER->start;
2027	Event::loop;	2680	Event::loop;
2028	}	2681	}
2029		2682
2030	#############################################################################	2683	#############################################################################
2031	# initialisation	2684	# initialisation and cleanup
2032		2685
		2686	# install some emergency cleanup handlers
		2687	BEGIN {
		2688	for my $signal (qw(INT HUP TERM)) {
		2689	Event->signal (
		2690	reentrant => 0,
		2691	data => WF_AUTOCANCEL,
		2692	signal => $signal,
		2693	prio => 0,
		2694	cb => sub {
		2695	cf::cleanup "SIG$signal";
		2696	},
		2697	);
		2698	}
		2699	}
		2700
		2701	sub emergency_save() {
		2702	my $freeze_guard = cf::freeze_mainloop;
		2703
		2704	warn "enter emergency perl save\n";
		2705
		2706	cf::sync_job {
		2707	# use a peculiar iteration method to avoid tripping on perl
		2708	# refcount bugs in for. also avoids problems with players
		2709	# and maps saved/destroyed asynchronously.
		2710	warn "begin emergency player save\n";
		2711	for my $login (keys %cf::PLAYER) {
		2712	my $pl = $cf::PLAYER{$login} or next;
		2713	$pl->valid or next;
		2714	$pl->save;
		2715	}
		2716	warn "end emergency player save\n";
		2717
		2718	warn "begin emergency map save\n";
		2719	for my $path (keys %cf::MAP) {
		2720	my $map = $cf::MAP{$path} or next;
		2721	$map->valid or next;
		2722	$map->save;
		2723	}
		2724	warn "end emergency map save\n";
		2725
		2726	warn "begin emergency database checkpoint\n";
		2727	BDB::db_env_txn_checkpoint $DB_ENV;
		2728	warn "end emergency database checkpoint\n";
		2729	};
		2730
		2731	warn "leave emergency perl save\n";
		2732	}
		2733
		2734	sub post_cleanup {
		2735	my ($make_core) = @_;
		2736
		2737	warn Carp::longmess "post_cleanup backtrace"
		2738	if $make_core;
		2739	}
		2740
2033	sub reload() {	2741	sub do_reload_perl() {
2034	# can/must only be called in main	2742	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	2743	if ($Coro::current != $Coro::main) {
2036	warn "can only reload from main coroutine\n";	2744	warn "can only reload from main coroutine";
2037	return;	2745	return;
2038	}	2746	}
2039		2747
2040	warn "reloading...";	2748	warn "reloading...";
2041		2749
2042	my $guard = freeze_mainloop;	2750	warn "entering sync_job";
		2751
		2752	cf::sync_job {
		2753	cf::write_runtime; # external watchdog should not bark
2043	cf::emergency_save;	2754	cf::emergency_save;
		2755	cf::write_runtime; # external watchdog should not bark
2044		2756
2045	eval {	2757	warn "syncing database to disk";
		2758	BDB::db_env_txn_checkpoint $DB_ENV;
		2759
2046	# if anything goes wrong in here, we should simply crash as we already saved	2760	# if anything goes wrong in here, we should simply crash as we already saved
2047		2761
2048	# cancel all watchers	2762	warn "cancelling all WF_AUTOCANCEL watchers";
2049	for (Event::all_watchers) {	2763	for (Event::all_watchers) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;	2764	$_->cancel if $_->data & WF_AUTOCANCEL;
2051	}	2765	}
2052		2766
		2767	warn "flushing outstanding aio requests";
		2768	for (;;) {
		2769	BDB::flush;
		2770	IO::AIO::flush;
		2771	Coro::cede;
		2772	last unless IO::AIO::nreqs || BDB::nreqs;
		2773	warn "iterate...";
		2774	}
		2775
		2776	++$RELOAD;
		2777
2053	# cancel all extension coros	2778	warn "cancelling all extension coros";
2054	$_->cancel for values %EXT_CORO;	2779	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();	2780	%EXT_CORO = ();
2056		2781
2057	# unload all extensions	2782	warn "removing commands";
2058	for (@exts) {	2783	%COMMAND = ();
		2784
		2785	warn "removing ext commands";
		2786	%EXTCMD = ();
		2787
		2788	warn "unloading/nuking all extensions";
		2789	for my $pkg (@EXTS) {
2059	warn "unloading <$_>";	2790	warn "... unloading $pkg";
2060	unload_extension $_;	2791
		2792	if (my $cb = $pkg->can ("unload")) {
		2793	eval {
		2794	$cb->($pkg);
		2795	1
		2796	} or warn "$pkg unloaded, but with errors: $@";
2061	}	2797	}
2062		2798
		2799	warn "... nuking $pkg";
		2800	Symbol::delete_package $pkg;
		2801	}
		2802
2063	# unload all modules loaded from $LIBDIR	2803	warn "unloading all perl modules loaded from $LIBDIR";
2064	while (my ($k, $v) = each %INC) {	2804	while (my ($k, $v) = each %INC) {
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2805	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066		2806
2067	warn "removing <$k>";	2807	warn "... unloading $k";
2068	delete $INC{$k};	2808	delete $INC{$k};
2069		2809
2070	$k =~ s/\.pm$//;	2810	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;	2811	$k =~ s/\//::/g;
2072		2812
…		…
2075	}	2815	}
2076		2816
2077	Symbol::delete_package $k;	2817	Symbol::delete_package $k;
2078	}	2818	}
2079		2819
2080	# sync database to disk
2081	cf::db_sync;
2082	IO::AIO::flush;
2083
2084	# get rid of safe::, as good as possible	2820	warn "getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	2821	Symbol::delete_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2822	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		2823
2088	# remove register_script_function callbacks
2089	# TODO
2090
2091	# unload cf.pm "a bit"	2824	warn "unloading cf.pm \"a bit\"";
2092	delete $INC{"cf.pm"};	2825	delete $INC{"cf.pm"};
		2826	delete $INC{"cf/pod.pm"};
2093		2827
2094	# don't, removes xs symbols, too,	2828	# don't, removes xs symbols, too,
2095	# and global variables created in xs	2829	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	2830	#Symbol::delete_package __PACKAGE__;
2097		2831
2098	# reload cf.pm	2832	warn "unload completed, starting to reload now";
		2833
2099	warn "reloading cf.pm";	2834	warn "reloading cf.pm";
2100	require cf;	2835	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2836	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2102		2837
2103	# load config and database again	2838	warn "loading config and database again";
2104	cf::cfg_load;	2839	cf::cfg_load;
2105	cf::db_load;
2106		2840
2107	# load extensions
2108	warn "load extensions";	2841	warn "loading extensions";
2109	cf::load_extensions;	2842	cf::load_extensions;
2110		2843
2111	# reattach attachments to objects	2844	warn "reattaching attachments to objects/players";
2112	warn "reattach";	2845	_global_reattach; # objects, sockets
2113	_global_reattach;	2846	warn "reattaching attachments to maps";
2114	};	2847	reattach $_ for values %MAP;
		2848	warn "reattaching attachments to players";
		2849	reattach $_ for values %PLAYER;
2115		2850
2116	if ($@) {	2851	warn "leaving sync_job";
		2852
		2853	1
		2854	} or do {
2117	warn $@;	2855	warn $@;
2118	warn "error while reloading, exiting.";	2856	warn "error while reloading, exiting.";
2119	exit 1;	2857	exit 1;
2120	}	2858	};
2121		2859
2122	warn "reloaded successfully";	2860	warn "reloaded";
2123	};	2861	};
2124		2862
2125	#############################################################################	2863	our $RELOAD_WATCHER; # used only during reload
2126		2864
2127	unless ($LINK_MAP) {	2865	sub reload_perl() {
2128	$LINK_MAP = cf::map::new;	2866	# doing reload synchronously and two reloads happen back-to-back,
		2867	# coro crashes during coro_state_free->destroy here.
2129		2868
2130	$LINK_MAP->width (41);	2869	$RELOAD_WATCHER ||= Event->timer (
2131	$LINK_MAP->height (41);	2870	reentrant => 0,
2132	$LINK_MAP->alloc;
2133	$LINK_MAP->path ("{link}");
2134	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2135	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2136
2137	# dirty hack because... archetypes are not yet loaded
2138	Event->timer (
2139	after => 2,	2871	after => 0,
		2872	data => WF_AUTOCANCEL,
2140	cb => sub {	2873	cb => sub {
2141	$_[0]->w->cancel;	2874	do_reload_perl;
2142		2875	undef $RELOAD_WATCHER;
2143	# provide some exits "home"
2144	my $exit = cf::object::new "exit";
2145
2146	$exit->slaying ($EMERGENCY_POSITION->[0]);
2147	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2148	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2149
2150	$LINK_MAP->insert ($exit->clone, 19, 19);
2151	$LINK_MAP->insert ($exit->clone, 19, 20);
2152	$LINK_MAP->insert ($exit->clone, 19, 21);
2153	$LINK_MAP->insert ($exit->clone, 20, 19);
2154	$LINK_MAP->insert ($exit->clone, 20, 21);
2155	$LINK_MAP->insert ($exit->clone, 21, 19);
2156	$LINK_MAP->insert ($exit->clone, 21, 20);
2157	$LINK_MAP->insert ($exit->clone, 21, 21);
2158
2159	$exit->destroy;
2160	});	2876	},
2161		2877	);
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}	2878	}
2167
2168	register "<global>", __PACKAGE__;
2169		2879
2170	register_command "reload" => sub {	2880	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	2881	my ($who, $arg) = @_;
2172		2882
2173	if ($who->flag (FLAG_WIZ)) {	2883	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");
2175	reload;
2176	$who->message ("end of reload.");	2884	$who->message ("reloading server.");
		2885	async { reload_perl };
2177	}	2886	}
2178	};	2887	};
2179		2888
2180	unshift @INC, $LIBDIR;	2889	unshift @INC, $LIBDIR;
2181		2890
		2891	my $bug_warning = 0;
		2892
		2893	our @WAIT_FOR_TICK;
		2894	our @WAIT_FOR_TICK_BEGIN;
		2895
		2896	sub wait_for_tick {
		2897	return unless $TICK_WATCHER->is_active;
		2898	return if $Coro::current == $Coro::main;
		2899
		2900	my $signal = new Coro::Signal;
		2901	push @WAIT_FOR_TICK, $signal;
		2902	$signal->wait;
		2903	}
		2904
		2905	sub wait_for_tick_begin {
		2906	return unless $TICK_WATCHER->is_active;
		2907	return if $Coro::current == $Coro::main;
		2908
		2909	my $signal = new Coro::Signal;
		2910	push @WAIT_FOR_TICK_BEGIN, $signal;
		2911	$signal->wait;
		2912	}
		2913
		2914	my $min = 1e6;#d#
		2915	my $avg = 10;
2182	$TICK_WATCHER = Event->timer (	2916	$TICK_WATCHER = Event->timer (
2183	reentrant => 0,	2917	reentrant => 0,
		2918	parked => 1,
2184	prio => 0,	2919	prio => 0,
2185	at => $NEXT_TICK || $TICK,	2920	at => $NEXT_TICK || $TICK,
2186	data => WF_AUTOCANCEL,	2921	data => WF_AUTOCANCEL,
2187	cb => sub {	2922	cb => sub {
		2923	if ($Coro::current != $Coro::main) {
		2924	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2925	unless ++$bug_warning > 10;
		2926	return;
		2927	}
		2928
		2929	$NOW = $tick_start = Event::time;
		2930
2188	cf::server_tick; # one server iteration	2931	cf::server_tick; # one server iteration
		2932
		2933	0 && sync_job {#d#
		2934	for(1..10) {
		2935	my $t = Event::time;
		2936	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2937	or die;
		2938
		2939	$map->width (50);
		2940	$map->height (50);
		2941	$map->alloc;
		2942	$map->_load_objects ("/tmp/x.map", 1);
		2943	my $t = Event::time - $t;
		2944
		2945	#next unless $t < 0.0013;#d#
		2946	if ($t < $min) {
		2947	$min = $t;
		2948	}
		2949	$avg = $avg * 0.99 + $t * 0.01;
		2950	}
		2951	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2952	exit 0;
		2953	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2954	};
		2955
2189	$RUNTIME += $TICK;	2956	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;	2957	$NEXT_TICK += $TICK;
2191		2958
		2959	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2960	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2961	Coro::async_pool {
		2962	write_runtime
		2963	or warn "ERROR: unable to write runtime file: $!";
		2964	};
		2965	}
		2966
		2967	# my $AFTER = Event::time;
		2968	# warn $AFTER - $NOW;#d#
		2969
		2970	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2971	$sig->send;
		2972	}
		2973	while (my $sig = shift @WAIT_FOR_TICK) {
		2974	$sig->send;
		2975	}
		2976
		2977	$NOW = Event::time;
		2978
2192	# if we are delayed by four ticks or more, skip them all	2979	# if we are delayed by four ticks or more, skip them all
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2980	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2194		2981
2195	$TICK_WATCHER->at ($NEXT_TICK);	2982	$TICK_WATCHER->at ($NEXT_TICK);
2196	$TICK_WATCHER->start;	2983	$TICK_WATCHER->start;
		2984
		2985	$LOAD = ($NOW - $tick_start) / $TICK;
		2986	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2987
		2988	_post_tick;
		2989
		2990
2197	},	2991	},
2198	);	2992	);
2199		2993
		2994	{
2200	IO::AIO::max_poll_time $TICK * 0.2;	2995	BDB::max_poll_time $TICK * 0.1;
2201		2996	$BDB_POLL_WATCHER = Event->io (
2202	Event->io (	2997	reentrant => 0,
2203	fd => IO::AIO::poll_fileno,	2998	fd => BDB::poll_fileno,
2204	poll => 'r',	2999	poll => 'r',
2205	prio => 5,	3000	prio => 0,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209
2210	Event->timer (
2211	data => WF_AUTOCANCEL,	3001	data => WF_AUTOCANCEL,
2212	after => 0,	3002	cb => \&BDB::poll_cb,
2213	interval => 10,	3003	);
2214	cb => sub {	3004	BDB::min_parallel 8;
2215	(Coro::unblock_sub {	3005
2216	write_runtime	3006	BDB::set_sync_prepare {
2217	or warn "ERROR: unable to write runtime file: $!";	3007	my $status;
		3008	my $current = $Coro::current;
		3009	(
		3010	sub {
		3011	$status = $!;
		3012	$current->ready; undef $current;
		3013	},
		3014	sub {
		3015	Coro::schedule while defined $current;
		3016	$! = $status;
		3017	},
		3018	)
		3019	};
		3020
		3021	unless ($DB_ENV) {
		3022	$DB_ENV = BDB::db_env_create;
		3023
		3024	cf::sync_job {
		3025	eval {
		3026	BDB::db_env_open
		3027	$DB_ENV,
		3028	$BDBDIR,
		3029	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3030	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3031	0666;
		3032
		3033	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3034
		3035	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3036	$DB_ENV->set_lk_detect;
		3037	};
		3038
		3039	cf::cleanup "db_env_open(db): $@" if $@;
2218	})->();	3040	};
2219	},	3041	}
2220	);	3042	}
		3043
		3044	{
		3045	IO::AIO::min_parallel 8;
		3046
		3047	undef $Coro::AIO::WATCHER;
		3048	IO::AIO::max_poll_time $TICK * 0.1;
		3049	$AIO_POLL_WATCHER = Event->io (
		3050	reentrant => 0,
		3051	data => WF_AUTOCANCEL,
		3052	fd => IO::AIO::poll_fileno,
		3053	poll => 'r',
		3054	prio => 6,
		3055	cb => \&IO::AIO::poll_cb,
		3056	);
		3057	}
		3058
		3059	my $_log_backtrace;
		3060
		3061	sub _log_backtrace {
		3062	my ($msg, @addr) = @_;
		3063
		3064	$msg =~ s/\n//;
		3065
		3066	# limit the # of concurrent backtraces
		3067	if ($_log_backtrace < 2) {
		3068	++$_log_backtrace;
		3069	async {
		3070	my @bt = fork_call {
		3071	@addr = map { sprintf "%x", $_ } @addr;
		3072	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3073	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3074	or die "addr2line: $!";
		3075
		3076	my @funcs;
		3077	my @res = <$fh>;
		3078	chomp for @res;
		3079	while (@res) {
		3080	my ($func, $line) = splice @res, 0, 2, ();
		3081	push @funcs, "[$func] $line";
		3082	}
		3083
		3084	@funcs
		3085	};
		3086
		3087	LOG llevInfo, "[ABT] $msg\n";
		3088	LOG llevInfo, "[ABT] $_\n" for @bt;
		3089	--$_log_backtrace;
		3090	};
		3091	} else {
		3092	LOG llevInfo, "[ABT] $msg\n";
		3093	LOG llevInfo, "[ABT] [suppressed]\n";
		3094	}
		3095	}
		3096
		3097	# load additional modules
		3098	use cf::pod;
2221		3099
2222	END { cf::emergency_save }	3100	END { cf::emergency_save }
2223		3101
2224	1	3102	1
2225		3103

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