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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.121 by root, Tue Jan 2 11:11:52 2007 UTC vs.
Revision 1.280 by root, Sat Jun 16 14:35:41 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		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 $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available	112	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		113
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	114	sub cf::map::normalise;
78		115
79	#############################################################################	116	#############################################################################
80		117
81	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
82		119
…		…
89	=item $cf::RUNTIME	126	=item $cf::RUNTIME
90		127
91	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
92	every server tick.	129	every server tick.
93		130
94	=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
95		134
96	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		139
99	=item $cf::NOW	140	=item $cf::NOW
100		141
101	The time of the last (current) server tick.	142	The time of the last (current) server tick.
102		143
103	=item $cf::TICK	144	=item $cf::TICK
104		145
105	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.
106		157
107	=item %cf::CFG	158	=item %cf::CFG
108		159
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	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.
111		168
112	=back	169	=back
113		170
114	=cut	171	=cut
115		172
116	BEGIN {	173	BEGIN {
117	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	175	my $msg = join "", @_;
119	utf8::encode $msg;
120		176
121	$msg .= "\n"	177	$msg .= "\n"
122	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
123		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
125	};	184	};
126	}	185	}
127		186
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@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';
133	@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)
134		194
135	# 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
136	# within the Safe compartment.	196	# within the Safe compartment.
137	for my $pkg (qw(	197	for my $pkg (qw(
138	cf::global cf::attachable	198	cf::global cf::attachable
…		…
147		207
148	$Event::DIED = sub {	208	$Event::DIED = sub {
149	warn "error in event callback: @_";	209	warn "error in event callback: @_";
150	};	210	};
151		211
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
157		213
158	=over 4	214	=over 4
159		215
160	=cut	216	=item dumpval $ref
161		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
162	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
163		240
164	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
165		242
166	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
167		244
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
176		246
177	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
178		248
179	=cut
180
181	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185
186	=item my $guard = cf::guard { BLOCK }
187
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207
208	=item cf::lock_wait $string	249	=item cf::lock_wait $string
209		250
210	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
211		252
212	=item my $lock = cf::lock_acquire $string	253	=item my $lock = cf::lock_acquire $string
213		254
214	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
215	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,
216	for example when the coroutine gets canceled), the lock is automatically	257	for example when the coroutine gets canceled), the lock is automatically
217	returned.	258	returned.
218		259
219	Lock names should begin with a unique identifier (for example, find_map	260	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map 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.
221		266
222	=cut	267	=cut
223		268
224	our %LOCK;	269	our %LOCK;
225		270
…		…
239	# wait, to be sure we are not locked	284	# wait, to be sure we are not locked
240	lock_wait $key;	285	lock_wait $key;
241		286
242	$LOCK{$key} = [];	287	$LOCK{$key} = [];
243		288
244	cf::guard {	289	Coro::guard {
245	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
247	}	292	}
248	}	293	}
		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
		301	sub freeze_mainloop {
		302	return unless $TICK_WATCHER->is_active;
		303
		304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
		307	$TICK_WATCHER->stop;
		308	$guard
		309	}
		310
		311	=item cf::async { BLOCK }
		312
		313	Currently the same as Coro::async_pool, meaning you cannot use
		314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		315	thing you are allowed to do is call C<prio> on it.
		316
		317	=cut
		318
		319	BEGIN { *async = \&Coro::async_pool }
249		320
250	=item cf::sync_job { BLOCK }	321	=item cf::sync_job { BLOCK }
251		322
252	The design of crossfire+ requires that the main coro ($Coro::main) is	323	The design of crossfire+ requires that the main coro ($Coro::main) is
253	always able to handle events or runnable, as crossfire+ is only partly	324	always able to handle events or runnable, as crossfire+ is only partly
…		…
262		333
263	sub sync_job(&) {	334	sub sync_job(&) {
264	my ($job) = @_;	335	my ($job) = @_;
265		336
266	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
267	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
269		342
270	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	344	# (but this is cancel-safe)
272	local $FREEZE = 1;	345	my $freeze_guard = freeze_mainloop;
273		346
274	my $busy = 1;	347	my $busy = 1;
275	my @res;	348	my @res;
276		349
277	(Coro::async {	350	(async {
278	@res = eval { $job->() };	351	@res = eval { $job->() };
279	warn $@ if $@;	352	warn $@ if $@;
280	undef $busy;	353	undef $busy;
281	})->prio (Coro::PRIO_MAX);	354	})->prio (Coro::PRIO_MAX);
282		355
283	while ($busy) {	356	while ($busy) {
284	Coro::cede_notself;	357	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	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
287		366
288	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
289	} else {	368	} else {
290	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
291		370
292	$job->()	371	$job->()
293	}	372	}
294	}	373	}
295		374
296	=item $coro = cf::coro { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
297		376
298	Creates and returns a new coro. This coro is automcatially being canceled	377	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	378	extension calling this is being unloaded.
300		379
301	=cut	380	=cut
302		381
303	sub coro(&) {	382	sub async_ext(&) {
304	my $cb = shift;	383	my $cb = shift;
305		384
306	my $coro; $coro = async {	385	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		386
313	$coro->on_destroy (sub {	387	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	388	delete $EXT_CORO{$coro+0};
315	});	389	});
316	$EXT_CORO{$coro+0} = $coro;	390	$EXT_CORO{$coro+0} = $coro;
317		391
318	$coro	392	$coro
319	}	393	}
320		394
321	sub write_runtime {	395	sub write_runtime {
322	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";
323		404
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
325	or return;	406	or return;
326		407
		408	my $value = $cf::RUNTIME + 90 + 10;
327	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
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;	413	and return;
330		414
		415	# always fsync - this file is important
331	aio_fsync $fh	416	aio_fsync $fh
332	and return;	417	and return;
333		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
334	close $fh	422	close $fh
335	or return;	423	or return;
336		424
337	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
338	and return;	426	and return;
339		427
		428	warn "runtime file written.\n";
		429
340	1	430	1
341	}	431	}
342		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
343	=back	444	=back
344		445
345	=cut	446	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		447
467	#############################################################################	448	#############################################################################
468		449
469	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
470		451
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	578	our @CB_MAP = ();
598		579
599	my %attachment;	580	my %attachment;
600		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
601	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
603		590
604	use sort 'stable';	591	use sort 'stable';
605		592
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
640		627
641	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		632
646	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	634	my $pkg = shift @arg;
648		635
649	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	665	_attach $registry, $klass, @attach;
679	}	666	}
680		667
681	$obj->{$name} = \%arg;	668	$obj->{$name} = \%arg;
682	} else {	669	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	670	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	671	}
685		672
686	$obj->{_attachment}{$name} = undef;	673	$obj->{_attachment}{$name} = undef;
687	}	674	}
688		675
…		…
690	if (ref $_[0]) {	677	if (ref $_[0]) {
691	_object_attach @_;	678	_object_attach @_;
692	} else {	679	} else {
693	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
694	}	681	}
		682	_recalc_want;
695	};	683	};
696		684
697	# all those should be optimised	685	# all those should be optimised
698	sub cf::attachable::detach {	686	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
703	reattach ($obj);	691	reattach ($obj);
704	} else {	692	} else {
705	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
706	}	694	}
		695	_recalc_want;
707	};	696	};
708		697
709	sub cf::attachable::attached {	698	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
711		700
…		…
776	# object support	765	# object support
777		766
778	sub reattach {	767	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		772
782	my $registry = $obj->registry;	773	my $registry = $obj->registry;
783		774
784	@$registry = ();	775	@$registry = ();
785		776
…		…
832	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
833		824
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	829	close $fh;
839		830
840	if (@$objs) {	831	if (@$objs) {
841	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) {
842	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	837	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
848	}	839	}
849	} else {	840	} else {
850	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
882	or return;	873	or return;
883	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
884	}	875	}
885		876
886	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
888	return ($data, $av);	879	return ($data, $av);
889	}	880	}
890		881
891	#############################################################################	882	#############################################################################
892	# command handling &c	883	# command handling &c
…		…
917	=cut	908	=cut
918		909
919	sub register_extcmd {	910	sub register_extcmd {
920	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
921		912
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
926	}	914	}
927		915
928	cf::player->attach (	916	cf::player->attach (
929	on_command => sub {	917	on_command => sub {
930	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
943		931
944	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
945		933
946	if (ref $msg) {	934	if (ref $msg) {
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
949	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
950	}	938	}
951	}	939	}
952	} else {	940	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
955		943
956	cf::override;	944	cf::override;
957	},	945	},
958	);	946	);
959		947
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	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($) {
967	my ($path) = @_;	1260	my ($path) = @_;
968		1261
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1262	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1263
975	warn "loading '$path' into '$pkg'\n";	1264	for my $region (list) {
976		1265	if ($region->match && $path =~ $region->match) {
977	open my $fh, "<:utf8", $path	1266	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1267	if $region->specificity > $specificity;
979		1268	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1269	}
1009		1270
1010	# remove commands	1271	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1272	}
1116		1273
1117	=back	1274	=back
1118
1119		1275
1120	=head3 cf::map	1276	=head3 cf::map
1121		1277
1122	=over 4	1278	=over 4
1123		1279
…		…
1126	package cf::map;	1282	package cf::map;
1127		1283
1128	use Fcntl;	1284	use Fcntl;
1129	use Coro::AIO;	1285	use Coro::AIO;
1130		1286
		1287	use overload
		1288	'""' => \&as_string,
		1289	fallback => 1;
		1290
1131	our $MAX_RESET = 7200;	1291	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1292	our $DEFAULT_RESET = 3000;
1133		1293
1134	sub generate_random_map {	1294	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1295	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1296	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1297	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1298	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1299	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1300	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1301	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1302	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1303	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1304	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1305	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$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},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1307	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(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"
1151	}	1437	}
1152		1438
1153	# and all this just because we cannot iterate over	1439	# and all this just because we cannot iterate over
1154	# all maps in C++...	1440	# all maps in C++...
1155	sub change_all_map_light {	1441	sub change_all_map_light {
1156	my ($change) = @_;	1442	my ($change) = @_;
1157		1443
1158	$_->change_map_light ($change) for values %cf::MAP;	1444	$_->change_map_light ($change)
		1445	for grep $_->outdoor, values %cf::MAP;
1159	}	1446	}
1160		1447
		1448	sub decay_objects {
		1449	my ($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
1161	sub try_load_header($) {	1464	sub load_header_from($) {
1162	my ($path) = @_;	1465	my ($self, $path) = @_;
1163		1466
1164	utf8::encode $path;	1467	utf8::encode $path;
1165	aio_open $path, O_RDONLY, 0	1468	#aio_open $path, O_RDONLY, 0
		1469	# or return;
		1470
		1471	$self->_load_header ($path)
1166	or return;	1472	or return;
1167		1473
1168	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
1169	or return;	1517	or return;
		1518	$self->prepare_orig;
		1519	}
1170		1520
1171	$map->load_header ($path)	1521	$self->{deny_reset} = 1
1172	or return;	1522	if $self->no_reset;
1173		1523
1174	$map->{load_path} = $path;	1524	$self->default_region (cf::region::find_by_path $self->{path})
		1525	unless $self->default_region;
1175		1526
1176	$map	1527	1
1177	}	1528	}
1178		1529
		1530	sub find;
1179	sub find_map {	1531	sub find {
1180	my ($path, $origin) = @_;	1532	my ($path, $origin) = @_;
1181		1533
1182	#warn "find_map<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1534	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1535
1187	cf::lock_wait "map_find:$key";	1536	cf::lock_wait "map_find:$path";
1188		1537
1189	$cf::MAP{$key} || do {	1538	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1539	my $guard = cf::lock_acquire "map_find:$path";
1191		1540	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	if ($map) {
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1541	or return;
1207		1542
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->instantiate;
1211
1212	# per-player maps become, after loading, normal maps
1213	$map->per_player (0) if $path->{user_rel};
1214	}
1215
1216	$map->path ($key);
1217	$map->{path} = $path;
1218	$map->{last_save} = $cf::RUNTIME;	1543	$map->{last_save} = $cf::RUNTIME;
1219	$map->last_access ($cf::RUNTIME);
1220		1544
1221	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;
1222	$map->reset;	1551	$map->reset;
1223	$map = find_map $path;	1552	undef $guard;
		1553	return find $path;
1224	}	1554	}
1225		1555
1226	$cf::MAP{$key} = $map	1556	$cf::MAP{$path} = $map
1227	}	1557	}
1228	}	1558	}
		1559
		1560	sub pre_load { }
		1561	sub post_load { }
1229		1562
1230	sub load {	1563	sub load {
1231	my ($self) = @_;	1564	my ($self) = @_;
1232		1565
		1566	local $self->{deny_reset} = 1; # loading can take a long time
		1567
1233	my $path = $self->{path};	1568	my $path = $self->{path};
		1569
		1570	{
1234	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1571	my $guard = cf::lock_acquire "map_load:$path";
1235		1572
1236	return if $self->in_memory != cf::MAP_SWAPPED;	1573	return if $self->in_memory != cf::MAP_SWAPPED;
1237		1574
1238	$self->in_memory (cf::MAP_LOADING);	1575	$self->in_memory (cf::MAP_LOADING);
1239		1576
1240	$self->alloc;	1577	$self->alloc;
		1578
		1579	$self->pre_load;
		1580	Coro::cede;
		1581
1241	$self->load_objects ($self->{load_path}, 1)	1582	$self->_load_objects ($self->{load_path}, 1)
1242	or return;	1583	or return;
1243		1584
1244	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1585	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1245	if delete $self->{load_original};	1586	if delete $self->{load_original};
1246		1587
1247	if (my $uniq = $path->uniq_path) {	1588	if (my $uniq = $self->uniq_path) {
1248	utf8::encode $uniq;	1589	utf8::encode $uniq;
1249	if (aio_open $uniq, O_RDONLY, 0) {	1590	if (aio_open $uniq, O_RDONLY, 0) {
1250	$self->clear_unique_items;	1591	$self->clear_unique_items;
1251	$self->load_objects ($uniq, 0);	1592	$self->_load_objects ($uniq, 0);
1252	}	1593	}
1253	}	1594	}
1254		1595
		1596	Coro::cede;
1255	# now do the right thing for maps	1597	# now do the right thing for maps
1256	$self->link_multipart_objects;	1598	$self->link_multipart_objects;
1257
1258	if ($self->{path}->is_style_map) {
1259	$self->{deny_save} = 1;
1260	$self->{deny_reset} = 1;
1261	} else {
1262	$self->fix_auto_apply;
1263	$self->decay_objects;
1264	$self->update_buttons;
1265	$self->set_darkness_map;
1266	$self->difficulty ($self->estimate_difficulty)	1599	$self->difficulty ($self->estimate_difficulty)
1267	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;
1268	$self->activate;	1610	$self->activate;
1269	}	1611	}
1270		1612
1271	$self->in_memory (cf::MAP_IN_MEMORY);	1613	$self->in_memory (cf::MAP_IN_MEMORY);
1272	}	1614	}
1273		1615
1274	sub load_map_sync {	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	$neigh->load;
		1652	}
		1653	}
		1654
		1655	sub find_sync {
1275	my ($path, $origin) = @_;	1656	my ($path, $origin) = @_;
1276		1657
1277	#warn "load_map_sync<$path, $origin>\n";#d#	1658	cf::sync_job { find $path, $origin }
		1659	}
1278		1660
1279	cf::sync_job {	1661	sub do_load_sync {
1280	my $map = cf::map::find_map $path, $origin	1662	my ($map) = @_;
1281	or return;	1663
		1664	cf::sync_job { $map->load };
		1665	}
		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;
1282	$map->load;	1685	$map->load;
1283	$map	1686
		1687	delete $MAP_PREFETCH{$path};
		1688	}
		1689	}
		1690	undef $MAP_PREFETCHER;
1284	}	1691	};
		1692	$MAP_PREFETCHER->prio (6);
		1693
		1694	()
1285	}	1695	}
1286		1696
1287	sub save {	1697	sub save {
1288	my ($self) = @_;	1698	my ($self) = @_;
1289		1699
		1700	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1701
1290	$self->{last_save} = $cf::RUNTIME;	1702	$self->{last_save} = $cf::RUNTIME;
1291		1703
1292	return unless $self->dirty;	1704	return unless $self->dirty;
1293		1705
1294	my $save = $self->{path}->save_path; utf8::encode $save;	1706	my $save = $self->save_path; utf8::encode $save;
1295	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1707	my $uniq = $self->uniq_path; utf8::encode $uniq;
1296		1708
1297	$self->{load_path} = $save;	1709	$self->{load_path} = $save;
1298		1710
1299	return if $self->{deny_save};	1711	return if $self->{deny_save};
1300		1712
		1713	local $self->{last_access} = $self->last_access;#d#
		1714
		1715	cf::async {
		1716	$_->contr->save for $self->players;
		1717	};
		1718
1301	if ($uniq) {	1719	if ($uniq) {
1302	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1720	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1303	$self->save_objects ($uniq, cf::IO_UNIQUES);	1721	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1304	} else {	1722	} else {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1723	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1306	}	1724	}
1307	}	1725	}
1308		1726
1309	sub swap_out {	1727	sub swap_out {
1310	my ($self) = @_;	1728	my ($self) = @_;
		1729
		1730	# save first because save cedes
		1731	$self->save;
		1732
		1733	my $lock = cf::lock_acquire "map_data:" . $self->path;
1311		1734
1312	return if $self->players;	1735	return if $self->players;
1313	return if $self->in_memory != cf::MAP_IN_MEMORY;	1736	return if $self->in_memory != cf::MAP_IN_MEMORY;
1314	return if $self->{deny_save};	1737	return if $self->{deny_save};
1315		1738
1316	$self->save;
1317	$self->clear;	1739	$self->clear;
1318	$self->in_memory (cf::MAP_SWAPPED);	1740	$self->in_memory (cf::MAP_SWAPPED);
1319	}	1741	}
1320		1742
1321	sub reset_at {	1743	sub reset_at {
1322	my ($self) = @_;	1744	my ($self) = @_;
1323		1745
1324	# TODO: safety, remove and allow resettable per-player maps	1746	# TODO: safety, remove and allow resettable per-player maps
1325	return 1e99 if $self->{path}{user_rel};
1326	return 1e99 if $self->{deny_reset};	1747	return 1e99 if $self->{deny_reset};
1327		1748
1328	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1749	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1329	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1750	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1330		1751
…		…
1335	my ($self) = @_;	1756	my ($self) = @_;
1336		1757
1337	$self->reset_at <= $cf::RUNTIME	1758	$self->reset_at <= $cf::RUNTIME
1338	}	1759	}
1339		1760
1340	sub unlink_save {
1341	my ($self) = @_;
1342
1343	utf8::encode (my $save = $self->{path}->save_path);
1344	aioreq_pri 3; IO::AIO::aio_unlink $save;
1345	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1346	}
1347
1348	sub rename {
1349	my ($self, $new_path) = @_;
1350
1351	$self->unlink_save;
1352
1353	delete $cf::MAP{$self->path};
1354	$self->{path} = new cf::path $new_path;
1355	$self->path ($self->{path}->as_string);
1356	$cf::MAP{$self->path} = $self;
1357
1358	$self->save;
1359	}
1360
1361	sub reset {	1761	sub reset {
1362	my ($self) = @_;	1762	my ($self) = @_;
1363		1763
		1764	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1765
1364	return if $self->players;	1766	return if $self->players;
1365	return if $self->{path}{user_rel};#d#
1366		1767
1367	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	}
1368		1779
1369	delete $cf::MAP{$self->path};	1780	delete $cf::MAP{$self->path};
		1781
		1782	$self->clear;
1370		1783
1371	$_->clear_links_to ($self) for values %cf::MAP;	1784	$_->clear_links_to ($self) for values %cf::MAP;
1372		1785
1373	$self->unlink_save;	1786	$self->unlink_save;
1374	$self->destroy;	1787	$self->destroy;
…		…
1377	my $nuke_counter = "aaaa";	1790	my $nuke_counter = "aaaa";
1378		1791
1379	sub nuke {	1792	sub nuke {
1380	my ($self) = @_;	1793	my ($self) = @_;
1381		1794
		1795	delete $cf::MAP{$self->path};
		1796
		1797	$self->unlink_save;
		1798
		1799	bless $self, "cf::map";
		1800	delete $self->{deny_reset};
1382	$self->{deny_save} = 1;	1801	$self->{deny_save} = 1;
1383	$self->reset_timeout (1);	1802	$self->reset_timeout (1);
1384	$self->rename ("{nuke}/" . ($nuke_counter++));	1803	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1804
		1805	$cf::MAP{$self->path} = $self;
		1806
1385	$self->reset; # polite request, might not happen	1807	$self->reset; # polite request, might not happen
1386	}	1808	}
1387		1809
1388	sub customise_for {	1810	=item $maps = cf::map::tmp_maps
1389	my ($map, $ob) = @_;
1390		1811
1391	if ($map->per_player) {	1812	Returns an arrayref with all map paths of currently instantiated and saved
1392	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1813	maps. May block.
		1814
		1815	=cut
		1816
		1817	sub tmp_maps() {
1393	}	1818	[
1394		1819	map {
1395	$map	1820	utf8::decode $_;
		1821	/\.map$/
		1822	? normalise $_
		1823	: ()
		1824	} @{ aio_readdir $TMPDIR or [] }
		1825	]
1396	}	1826	}
1397		1827
1398	sub emergency_save {	1828	=item $maps = cf::map::random_maps
1399	local $cf::FREEZE = 1;
1400		1829
1401	warn "enter emergency map save\n";	1830	Returns an arrayref with all map paths of currently instantiated and saved
		1831	random maps. May block.
1402		1832
1403	cf::sync_job {	1833	=cut
1404	warn "begin emergency map save\n";
1405	$_->save for values %cf::MAP;
1406	};
1407		1834
1408	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	]
1409	}	1862	}
1410		1863
1411	package cf;	1864	package cf;
1412		1865
1413	=back	1866	=back
1414		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
1415		1894
1416	=head3 cf::object::player	1895	=head3 cf::object::player
1417		1896
1418	=over 4	1897	=over 4
1419		1898
…		…
1459		1938
1460	=item $player_object->enter_link	1939	=item $player_object->enter_link
1461		1940
1462	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}>).
1463		1942
1464	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
1465	I<MUST> call C<leave_link> as soon as possible, though.	1944	I<MUST> call C<leave_link> as soon as possible, though.
1466		1945
		1946	Will never block.
		1947
1467	=item $player_object->leave_link ($map, $x, $y)	1948	=item $player_object->leave_link ($map, $x, $y)
1468		1949
1469	Moves the player out of the specila link map onto the given map. If the	1950	Moves the player out of the special C<{link}> map onto the specified
1470	map is not valid (or omitted), the player will be moved back to the	1951	map. If the map is not valid (or omitted), the player will be moved back
1471	location he/she was before the call to C<enter_link>, or, if that fails,	1952	to the location he/she was before the call to C<enter_link>, or, if that
1472	to the emergency map position.	1953	fails, to the emergency map position.
1473		1954
1474	Might block.	1955	Might block.
1475		1956
1476	=cut	1957	=cut
		1958
		1959	sub link_map {
		1960	unless ($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	$LINK_MAP
		1967	}
1477		1968
1478	sub cf::object::player::enter_link {	1969	sub cf::object::player::enter_link {
1479	my ($self) = @_;	1970	my ($self) = @_;
1480		1971
1481	$self->deactivate_recursive;	1972	$self->deactivate_recursive;
1482		1973
1483	return if $self->map == $LINK_MAP;	1974	return if UNIVERSAL::isa $self->map, "ext::map_link";
1484		1975
1485	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1976	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1486	if $self->map;	1977	if $self->map && $self->map->{path} ne "{link}";
1487		1978
1488	$self->enter_map ($LINK_MAP, 20, 20);	1979	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1489	}	1980	}
1490		1981
1491	sub cf::object::player::leave_link {	1982	sub cf::object::player::leave_link {
1492	my ($self, $map, $x, $y) = @_;	1983	my ($self, $map, $x, $y) = @_;
		1984
		1985	return unless $self->contr->active;
1493		1986
1494	my $link_pos = delete $self->{_link_pos};	1987	my $link_pos = delete $self->{_link_pos};
1495		1988
1496	unless ($map) {	1989	unless ($map) {
1497	# restore original map position	1990	# restore original map position
1498	($map, $x, $y) = @{ $link_pos || [] };	1991	($map, $x, $y) = @{ $link_pos || [] };
1499	$map = cf::map::find_map $map;	1992	$map = cf::map::find $map;
1500		1993
1501	unless ($map) {	1994	unless ($map) {
1502	($map, $x, $y) = @$EMERGENCY_POSITION;	1995	($map, $x, $y) = @$EMERGENCY_POSITION;
1503	$map = cf::map::find_map $map	1996	$map = cf::map::find $map
1504	or die "FATAL: cannot load emergency map\n";	1997	or die "FATAL: cannot load emergency map\n";
1505	}	1998	}
1506	}	1999	}
1507		2000
1508	($x, $y) = (-1, -1)	2001	($x, $y) = (-1, -1)
…		…
1511	# use -1 or undef as default coordinates, not 0, 0	2004	# use -1 or undef as default coordinates, not 0, 0
1512	($x, $y) = ($map->enter_x, $map->enter_y)	2005	($x, $y) = ($map->enter_x, $map->enter_y)
1513	if $x <=0 && $y <= 0;	2006	if $x <=0 && $y <= 0;
1514		2007
1515	$map->load;	2008	$map->load;
		2009	$map->load_diag;
1516		2010
		2011	return unless $self->contr->active;
1517	$self->activate_recursive;	2012	$self->activate_recursive;
		2013
		2014	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1518	$self->enter_map ($map, $x, $y);	2015	$self->enter_map ($map, $x, $y);
1519	}	2016	}
1520		2017
1521	cf::player->attach (
1522	on_logout => sub {
1523	my ($pl) = @_;
1524
1525	# abort map switching before logout
1526	if ($pl->ob->{_link_pos}) {
1527	cf::sync_job {
1528	$pl->ob->leave_link
1529	};
1530	}
1531	},
1532	on_login => sub {
1533	my ($pl) = @_;
1534
1535	# try to abort aborted map switching on player login :)
1536	# should happen only on crashes
1537	if ($pl->ob->{_link_pos}) {
1538	$pl->ob->enter_link;
1539	Coro::async {
1540	# we need this sleep as the login has a concurrent enter_exit running
1541	# and this sleep increases chances of the player not ending up in scorn
1542	Coro::Timer::sleep 1;
1543	$pl->ob->leave_link;
1544	};
1545	}
1546	},
1547	);
1548
1549	=item $player_object->goto_map ($path, $x, $y)	2018	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1550		2019
1551	=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.
1552		2024
		2025	=cut
		2026
		2027	our $GOTOGEN;
		2028
1553	sub cf::object::player::goto_map {	2029	sub cf::object::player::goto {
1554	my ($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;
1555		2034
1556	$self->enter_link;	2035	$self->enter_link;
1557		2036
1558	(Coro::async {	2037	(async {
1559	$path = new cf::path $path;	2038	my $map = eval {
1560
1561	my $map = cf::map::find_map $path->as_string;	2039	my $map = cf::map::find $path;
		2040
		2041	if ($map) {
1562	$map = $map->customise_for ($self) if $map;	2042	$map = $map->customise_for ($self);
1563		2043	$map = $check->($map) if $check && $map;
1564	# warn "entering ", $map->path, " at ($x, $y)\n"	2044	} else {
1565	# if $map;
1566
1567	$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	}
1568		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};
1569	$self->leave_link ($map, $x, $y);	2058	$self->leave_link ($map, $x, $y);
		2059	}
1570	})->prio (1);	2060	})->prio (1);
1571	}	2061	}
1572		2062
1573	=item $player_object->enter_exit ($exit_object)	2063	=item $player_object->enter_exit ($exit_object)
1574		2064
…		…
1576		2066
1577	sub parse_random_map_params {	2067	sub parse_random_map_params {
1578	my ($spec) = @_;	2068	my ($spec) = @_;
1579		2069
1580	my $rmp = { # defaults	2070	my $rmp = { # defaults
1581	xsize => 10,	2071	xsize => (cf::rndm 15, 40),
1582	ysize => 10,	2072	ysize => (cf::rndm 15, 40),
		2073	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2074	#layout => string,
1583	};	2075	};
1584		2076
1585	for (split /\n/, $spec) {	2077	for (split /\n/, $spec) {
1586	my ($k, $v) = split /\s+/, $_, 2;	2078	my ($k, $v) = split /\s+/, $_, 2;
1587		2079
…		…
1591	$rmp	2083	$rmp
1592	}	2084	}
1593		2085
1594	sub prepare_random_map {	2086	sub prepare_random_map {
1595	my ($exit) = @_;	2087	my ($exit) = @_;
		2088
		2089	my $guard = cf::lock_acquire "exit_prepare:$exit";
1596		2090
1597	# all this does is basically replace the /! path by	2091	# all this does is basically replace the /! path by
1598	# a new random map path (?random/...) with a seed	2092	# a new random map path (?random/...) with a seed
1599	# that depends on the exit object	2093	# that depends on the exit object
1600		2094
1601	my $rmp = parse_random_map_params $exit->msg;	2095	my $rmp = parse_random_map_params $exit->msg;
1602		2096
1603	if ($exit->map) {	2097	if ($exit->map) {
1604	$rmp->{region} = $exit->map->region_name;	2098	$rmp->{region} = $exit->region->name;
1605	$rmp->{origin_map} = $exit->map->path;	2099	$rmp->{origin_map} = $exit->map->path;
1606	$rmp->{origin_x} = $exit->x;	2100	$rmp->{origin_x} = $exit->x;
1607	$rmp->{origin_y} = $exit->y;	2101	$rmp->{origin_y} = $exit->y;
1608	}	2102	}
1609		2103
1610	$rmp->{random_seed} ||= $exit->random_seed;	2104	$rmp->{random_seed} ||= $exit->random_seed;
1611		2105
1612	my $data = cf::to_json $rmp;	2106	my $data = cf::to_json $rmp;
1613	my $md5 = Digest::MD5::md5_hex $data;	2107	my $md5 = Digest::MD5::md5_hex $data;
		2108	my $meta = "$RANDOMDIR/$md5.meta";
1614		2109
1615	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) {
1616	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;
1617		2114
1618	$exit->slaying ("?random/$md5");	2115	$exit->slaying ("?random/$md5");
1619	$exit->msg (undef);	2116	$exit->msg (undef);
1620	}	2117	}
1621	}	2118	}
…		…
1623	sub cf::object::player::enter_exit {	2120	sub cf::object::player::enter_exit {
1624	my ($self, $exit) = @_;	2121	my ($self, $exit) = @_;
1625		2122
1626	return unless $self->type == cf::PLAYER;	2123	return unless $self->type == cf::PLAYER;
1627		2124
		2125	if ($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
1628	$self->enter_link;	2136	$self->enter_link;
1629		2137
1630	(Coro::async {	2138	(async {
		2139	$self->deactivate_recursive; # just to be sure
1631	unless (eval {	2140	unless (eval {
1632		2141	$self->goto ($slaying, $hp, $sp);
1633	prepare_random_map $exit
1634	if $exit->slaying eq "/!";
1635
1636	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1637	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1638		2142
1639	1;	2143	1;
1640	}) {	2144	}) {
1641	$self->message ("Something went wrong deep within the crossfire server. "	2145	$self->message ("Something went wrong deep within the crossfire server. "
1642	. "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. "
1643	. "Please report this to the dungeon master",	2147	. "Please report this to the dungeon master!",
1644	cf::NDI_UNIQUE | cf::NDI_RED);	2148	cf::NDI_UNIQUE | cf::NDI_RED);
1645		2149
1646	warn "ERROR in enter_exit: $@";	2150	warn "ERROR in enter_exit: $@";
1647	$self->leave_link;	2151	$self->leave_link;
1648	}	2152	}
1649	})->prio (1);	2153	})->prio (1);
…		…
1662		2166
1663	sub cf::client::send_drawinfo {	2167	sub cf::client::send_drawinfo {
1664	my ($self, $text, $flags) = @_;	2168	my ($self, $text, $flags) = @_;
1665		2169
1666	utf8::encode $text;	2170	utf8::encode $text;
1667	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2171	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1668	}	2172	}
1669		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	}
1670		2186
1671	=item $success = $client->query ($flags, "text", \&cb)	2187	=item $success = $client->query ($flags, "text", \&cb)
1672		2188
1673	Queues a query to the client, calling the given callback with	2189	Queues a query to the client, calling the given callback with
1674	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>,
…		…
1699	on_reply => sub {	2215	on_reply => sub {
1700	my ($ns, $msg) = @_;	2216	my ($ns, $msg) = @_;
1701		2217
1702	# this weird shuffling is so that direct followup queries	2218	# this weird shuffling is so that direct followup queries
1703	# get handled first	2219	# get handled first
1704	my $queue = delete $ns->{query_queue};	2220	my $queue = delete $ns->{query_queue}
		2221	or return; # be conservative, not sure how that can happen, but we saw a crash here
1705		2222
1706	(shift @$queue)->[1]->($msg);	2223	(shift @$queue)->[1]->($msg);
		2224	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1707		2225
1708	push @{ $ns->{query_queue} }, @$queue;	2226	push @{ $ns->{query_queue} }, @$queue;
1709		2227
1710	if (@{ $ns->{query_queue} } == @$queue) {	2228	if (@{ $ns->{query_queue} } == @$queue) {
1711	if (@$queue) {	2229	if (@$queue) {
…		…
1715	}	2233	}
1716	}	2234	}
1717	},	2235	},
1718	);	2236	);
1719		2237
1720	=item $client->coro (\&cb)	2238	=item $client->async (\&cb)
1721		2239
1722	Create a new coroutine, running the specified callback. The coroutine will	2240	Create a new coroutine, running the specified callback. The coroutine will
1723	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,
1724	or loss of connection).	2242	or loss of connection).
1725		2243
1726	=cut	2244	=cut
1727		2245
1728	sub cf::client::coro {	2246	sub cf::client::async {
1729	my ($self, $cb) = @_;	2247	my ($self, $cb) = @_;
1730		2248
1731	my $coro; $coro = async {	2249	my $coro = &Coro::async ($cb);
1732	eval {
1733	$cb->();
1734	};
1735	warn $@ if $@;
1736	};
1737		2250
1738	$coro->on_destroy (sub {	2251	$coro->on_destroy (sub {
1739	delete $self->{_coro}{$coro+0};	2252	delete $self->{_coro}{$coro+0};
1740	});	2253	});
1741		2254
…		…
1774		2287
1775	# here we export the classes and methods available to script code	2288	# here we export the classes and methods available to script code
1776		2289
1777	=pod	2290	=pod
1778		2291
1779	The following fucntions and emthods are available within a safe environment:	2292	The following functions and methods are available within a safe environment:
1780		2293
1781	cf::object contr pay_amount pay_player map	2294	cf::object contr pay_amount pay_player map
1782	cf::object::player player	2295	cf::object::player player
1783	cf::player peaceful	2296	cf::player peaceful
1784	cf::map trigger	2297	cf::map trigger
…		…
1869	#############################################################################	2382	#############################################################################
1870		2383
1871	=head2 EXTENSION DATABASE SUPPORT	2384	=head2 EXTENSION DATABASE SUPPORT
1872		2385
1873	Crossfire maintains a very simple database for extension use. It can	2386	Crossfire maintains a very simple database for extension use. It can
1874	currently store anything that can be serialised using Storable, which	2387	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1875	excludes objects.	2388	convert to/from binary).
1876		2389
1877	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
1878	using it, it should be unique.	2391	using it, it should be unique.
1879		2392
1880	=over 4	2393	=over 4
1881		2394
1882	=item $hashref = cf::db_get $family
1883
1884	Return a hashref for use by the extension C<$family>, which can be
1885	modified. After modifications, you have to call C<cf::db_dirty> or
1886	C<cf::db_sync>.
1887
1888	=item $value = cf::db_get $family => $key	2395	=item $value = cf::db_get $family => $key
1889		2396
1890	Returns a single value from the database	2397	Returns a single value from the database.
1891
1892	=item cf::db_put $family => $hashref
1893
1894	Stores the given family hashref into the database. Updates are delayed, if
1895	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1896		2398
1897	=item cf::db_put $family => $key => $value	2399	=item cf::db_put $family => $key => $value
1898		2400
1899	Stores the given C<$value> in the family hash. Updates are delayed, if you	2401	Stores the given C<$value> in the family.
1900	want the data to be synced to disk immediately, use C<cf::db_sync>.
1901
1902	=item cf::db_dirty
1903
1904	Marks the database as dirty, to be updated at a later time.
1905
1906	=item cf::db_sync
1907
1908	Immediately write the database to disk I<if it is dirty>.
1909		2402
1910	=cut	2403	=cut
1911		2404
1912	our $DB;	2405	our $DB;
1913		2406
1914	{	2407	sub db_init {
1915	my $path = cf::localdir . "/database.pst";	2408	unless ($DB) {
		2409	$DB = BDB::db_create $DB_ENV;
1916		2410
1917	sub db_load() {	2411	cf::sync_job {
1918	$DB = stat $path ? Storable::retrieve $path : { };	2412	eval {
1919	}	2413	$DB->set_flags (BDB::CHKSUM);
1920		2414
1921	my $pid;	2415	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1922		2416	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1923	sub db_save() {	2417	cf::cleanup "db_open(db): $!" if $!;
1924	waitpid $pid, 0 if $pid;	2418	};
1925	if (0 == ($pid = fork)) {	2419	cf::cleanup "db_open(db): $@" if $@;
1926	$DB->{_meta}{version} = 1;
1927	Storable::nstore $DB, "$path~";
1928	rename "$path~", $path;
1929	cf::_exit 0 if defined $pid;
1930	}	2420	};
1931	}
1932
1933	my $dirty;
1934
1935	sub db_sync() {
1936	db_save if $dirty;
1937	undef $dirty;
1938	}
1939
1940	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1941	db_sync;
1942	});	2421	}
		2422	}
1943		2423
1944	sub db_dirty() {
1945	$dirty = 1;
1946	$idle->start;
1947	}
1948
1949	sub db_get($;$) {	2424	sub db_get($$) {
1950	@_ >= 2	2425	my $key = "$_[0]/$_[1]";
1951	? $DB->{$_[0]}{$_[1]}
1952	: ($DB->{$_[0]} ||= { })
1953	}
1954		2426
		2427	cf::sync_job {
		2428	BDB::db_get $DB, undef, $key, my $data;
		2429
		2430	$! ? ()
		2431	: $data
		2432	}
		2433	}
		2434
1955	sub db_put($$;$) {	2435	sub db_put($$$) {
1956	if (@_ >= 3) {	2436	BDB::dbreq_pri 4;
1957	$DB->{$_[0]}{$_[1]} = $_[2];	2437	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1958	} else {	2438	}
1959	$DB->{$_[0]} = $_[1];
1960	}
1961	db_dirty;
1962	}
1963		2439
1964	cf::global->attach (	2440	=item cf::cache $id => [$paths...], $processversion => $process
1965	prio => 10000,	2441
1966	on_cleanup => sub {	2442	Generic caching function that returns the value of the resource $id,
1967	db_sync;	2443	caching and regenerating as required.
		2444
		2445	This function can block.
		2446
		2447	=cut
		2448
		2449	sub cache {
		2450	my ($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 "$src->[$_]: $!";
1968	},	2472	}
1969	);	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	}
1970	}	2552	}
1971		2553
1972	#############################################################################	2554	#############################################################################
1973	# 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	}
1974		2644
1975	sub cfg_load {	2645	sub cfg_load {
1976	open my $fh, "<:utf8", cf::confdir . "/config"	2646	open my $fh, "<:utf8", "$CONFDIR/config"
1977	or return;	2647	or return;
1978		2648
1979	local $/;	2649	local $/;
1980	*CFG = YAML::Syck::Load <$fh>;	2650	*CFG = YAML::Syck::Load <$fh>;
		2651
		2652	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		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
		2657	if (exists $CFG{mlockall}) {
		2658	eval {
		2659	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2660	and die "WARNING: m(un)lockall failed: $!\n";
		2661	};
		2662	warn $@ if $@;
		2663	}
1981	}	2664	}
1982		2665
1983	sub main {	2666	sub main {
1984	# we must not ever block the main coroutine	2667	# we must not ever block the main coroutine
1985	local $Coro::idle = sub {	2668	local $Coro::idle = sub {
1986	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#
1987	(Coro::unblock_sub {	2670	(async {
1988	Event::one_event;	2671	Event::one_event;
1989	})->();	2672	})->prio (Coro::PRIO_MAX);
1990	};	2673	};
1991		2674
1992	cfg_load;	2675	cfg_load;
1993	db_load;	2676	db_init;
1994	load_extensions;	2677	load_extensions;
		2678
		2679	$TICK_WATCHER->start;
1995	Event::loop;	2680	Event::loop;
1996	}	2681	}
1997		2682
1998	#############################################################################	2683	#############################################################################
1999	# initialisation	2684	# initialisation and cleanup
2000		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
2001	sub reload() {	2741	sub do_reload_perl() {
2002	# can/must only be called in main	2742	# can/must only be called in main
2003	if ($Coro::current != $Coro::main) {	2743	if ($Coro::current != $Coro::main) {
2004	warn "can only reload from main coroutine\n";	2744	warn "can only reload from main coroutine";
2005	return;	2745	return;
2006	}	2746	}
2007		2747
2008	warn "reloading...";	2748	warn "reloading...";
2009		2749
2010	local $FREEZE = 1;	2750	warn "entering sync_job";
		2751
		2752	cf::sync_job {
		2753	cf::write_runtime; # external watchdog should not bark
2011	cf::emergency_save;	2754	cf::emergency_save;
		2755	cf::write_runtime; # external watchdog should not bark
2012		2756
2013	eval {	2757	warn "syncing database to disk";
		2758	BDB::db_env_txn_checkpoint $DB_ENV;
		2759
2014	# 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
2015		2761
2016	# cancel all watchers	2762	warn "cancelling all WF_AUTOCANCEL watchers";
2017	for (Event::all_watchers) {	2763	for (Event::all_watchers) {
2018	$_->cancel if $_->data & WF_AUTOCANCEL;	2764	$_->cancel if $_->data & WF_AUTOCANCEL;
2019	}	2765	}
2020		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
2021	# cancel all extension coros	2778	warn "cancelling all extension coros";
2022	$_->cancel for values %EXT_CORO;	2779	$_->cancel for values %EXT_CORO;
2023	%EXT_CORO = ();	2780	%EXT_CORO = ();
2024		2781
2025	# unload all extensions	2782	warn "removing commands";
2026	for (@exts) {	2783	%COMMAND = ();
		2784
		2785	warn "removing ext commands";
		2786	%EXTCMD = ();
		2787
		2788	warn "unloading/nuking all extensions";
		2789	for my $pkg (@EXTS) {
2027	warn "unloading <$_>";	2790	warn "... unloading $pkg";
2028	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: $@";
2029	}	2797	}
2030		2798
		2799	warn "... nuking $pkg";
		2800	Symbol::delete_package $pkg;
		2801	}
		2802
2031	# unload all modules loaded from $LIBDIR	2803	warn "unloading all perl modules loaded from $LIBDIR";
2032	while (my ($k, $v) = each %INC) {	2804	while (my ($k, $v) = each %INC) {
2033	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2805	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2034		2806
2035	warn "removing <$k>";	2807	warn "... unloading $k";
2036	delete $INC{$k};	2808	delete $INC{$k};
2037		2809
2038	$k =~ s/\.pm$//;	2810	$k =~ s/\.pm$//;
2039	$k =~ s/\//::/g;	2811	$k =~ s/\//::/g;
2040		2812
…		…
2043	}	2815	}
2044		2816
2045	Symbol::delete_package $k;	2817	Symbol::delete_package $k;
2046	}	2818	}
2047		2819
2048	# sync database to disk
2049	cf::db_sync;
2050	IO::AIO::flush;
2051
2052	# get rid of safe::, as good as possible	2820	warn "getting rid of safe::, as good as possible";
2053	Symbol::delete_package "safe::$_"	2821	Symbol::delete_package "safe::$_"
2054	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);
2055		2823
2056	# remove register_script_function callbacks
2057	# TODO
2058
2059	# unload cf.pm "a bit"	2824	warn "unloading cf.pm \"a bit\"";
2060	delete $INC{"cf.pm"};	2825	delete $INC{"cf.pm"};
		2826	delete $INC{"cf/pod.pm"};
2061		2827
2062	# don't, removes xs symbols, too,	2828	# don't, removes xs symbols, too,
2063	# and global variables created in xs	2829	# and global variables created in xs
2064	#Symbol::delete_package __PACKAGE__;	2830	#Symbol::delete_package __PACKAGE__;
2065		2831
2066	# reload cf.pm	2832	warn "unload completed, starting to reload now";
		2833
2067	warn "reloading cf.pm";	2834	warn "reloading cf.pm";
2068	require cf;	2835	require cf;
2069	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2836	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2070		2837
2071	# load config and database again	2838	warn "loading config and database again";
2072	cf::cfg_load;	2839	cf::cfg_load;
2073	cf::db_load;
2074		2840
2075	# load extensions
2076	warn "load extensions";	2841	warn "loading extensions";
2077	cf::load_extensions;	2842	cf::load_extensions;
2078		2843
2079	# reattach attachments to objects	2844	warn "reattaching attachments to objects/players";
2080	warn "reattach";	2845	_global_reattach; # objects, sockets
2081	_global_reattach;	2846	warn "reattaching attachments to maps";
2082	};	2847	reattach $_ for values %MAP;
		2848	warn "reattaching attachments to players";
		2849	reattach $_ for values %PLAYER;
2083		2850
2084	if ($@) {	2851	warn "leaving sync_job";
		2852
		2853	1
		2854	} or do {
2085	warn $@;	2855	warn $@;
2086	warn "error while reloading, exiting.";	2856	warn "error while reloading, exiting.";
2087	exit 1;	2857	exit 1;
2088	}	2858	};
2089		2859
2090	warn "reloaded successfully";	2860	warn "reloaded";
2091	};	2861	};
2092		2862
2093	#############################################################################	2863	our $RELOAD_WATCHER; # used only during reload
2094		2864
2095	unless ($LINK_MAP) {	2865	sub reload_perl() {
2096	$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.
2097		2868
2098	$LINK_MAP->width (41);	2869	$RELOAD_WATCHER ||= Event->timer (
2099	$LINK_MAP->height (41);	2870	reentrant => 0,
2100	$LINK_MAP->alloc;
2101	$LINK_MAP->path ("{link}");
2102	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2103	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2104
2105	# dirty hack because... archetypes are not yet loaded
2106	Event->timer (
2107	after => 2,	2871	after => 0,
		2872	data => WF_AUTOCANCEL,
2108	cb => sub {	2873	cb => sub {
2109	$_[0]->w->cancel;	2874	do_reload_perl;
2110		2875	undef $RELOAD_WATCHER;
2111	# provide some exits "home"
2112	my $exit = cf::object::new "exit";
2113
2114	$exit->slaying ($EMERGENCY_POSITION->[0]);
2115	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2116	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2117
2118	$LINK_MAP->insert ($exit->clone, 19, 19);
2119	$LINK_MAP->insert ($exit->clone, 19, 20);
2120	$LINK_MAP->insert ($exit->clone, 19, 21);
2121	$LINK_MAP->insert ($exit->clone, 20, 19);
2122	$LINK_MAP->insert ($exit->clone, 20, 21);
2123	$LINK_MAP->insert ($exit->clone, 21, 19);
2124	$LINK_MAP->insert ($exit->clone, 21, 20);
2125	$LINK_MAP->insert ($exit->clone, 21, 21);
2126
2127	$exit->destroy;
2128	});	2876	},
2129		2877	);
2130	$LINK_MAP->{deny_save} = 1;
2131	$LINK_MAP->{deny_reset} = 1;
2132
2133	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2134	}	2878	}
2135
2136	register "<global>", __PACKAGE__;
2137		2879
2138	register_command "reload" => sub {	2880	register_command "reload" => sub {
2139	my ($who, $arg) = @_;	2881	my ($who, $arg) = @_;
2140		2882
2141	if ($who->flag (FLAG_WIZ)) {	2883	if ($who->flag (FLAG_WIZ)) {
2142	$who->message ("start of reload.");
2143	reload;
2144	$who->message ("end of reload.");	2884	$who->message ("reloading server.");
		2885	async { reload_perl };
2145	}	2886	}
2146	};	2887	};
2147		2888
2148	unshift @INC, $LIBDIR;	2889	unshift @INC, $LIBDIR;
2149		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;
2150	$TICK_WATCHER = Event->timer (	2916	$TICK_WATCHER = Event->timer (
2151	reentrant => 0,	2917	reentrant => 0,
		2918	parked => 1,
2152	prio => 0,	2919	prio => 0,
2153	at => $NEXT_TICK || $TICK,	2920	at => $NEXT_TICK || $TICK,
2154	data => WF_AUTOCANCEL,	2921	data => WF_AUTOCANCEL,
2155	cb => sub {	2922	cb => sub {
2156	unless ($FREEZE) {	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
2157	cf::server_tick; # one server iteration	2931	cf::server_tick; # one server iteration
2158	$RUNTIME += $TICK;	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
2159	}	2954	};
2160		2955
		2956	$RUNTIME += $TICK;
2161	$NEXT_TICK += $TICK;	2957	$NEXT_TICK += $TICK;
2162		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
2163	# 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
2164	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2980	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2165		2981
2166	$TICK_WATCHER->at ($NEXT_TICK);	2982	$TICK_WATCHER->at ($NEXT_TICK);
2167	$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
2168	},	2991	},
2169	);	2992	);
2170		2993
		2994	{
2171	IO::AIO::max_poll_time $TICK * 0.2;	2995	BDB::max_poll_time $TICK * 0.1;
2172		2996	$BDB_POLL_WATCHER = Event->io (
2173	Event->io (	2997	reentrant => 0,
2174	fd => IO::AIO::poll_fileno,	2998	fd => BDB::poll_fileno,
2175	poll => 'r',	2999	poll => 'r',
2176	prio => 5,	3000	prio => 0,
2177	data => WF_AUTOCANCEL,
2178	cb => \&IO::AIO::poll_cb,
2179	);
2180
2181	Event->timer (
2182	data => WF_AUTOCANCEL,	3001	data => WF_AUTOCANCEL,
2183	after => 0,	3002	cb => \&BDB::poll_cb,
2184	interval => 10,	3003	);
2185	cb => sub {	3004	BDB::min_parallel 8;
2186	(Coro::unblock_sub {	3005
2187	write_runtime	3006	BDB::set_sync_prepare {
2188	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 $@;
2189	})->();	3040	};
2190	},	3041	}
2191	);	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;
		3099
		3100	END { cf::emergency_save }
2192		3101
2193	1	3102	1
2194		3103

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