ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.110 by root, Mon Jan 1 11:21:55 2007 UTC vs.
Revision 1.276 by root, Sun Jun 10 04:05:47 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	249	=item cf::lock_wait $string
180		250
181	sub to_json($) {	251	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	252
183	JSON::Syck::Dump $_[0]	253	=item my $lock = cf::lock_acquire $string
		254
		255	Wait until the given lock is available and then acquires it and returns
		256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		257	for example when the coroutine gets canceled), the lock is automatically
		258	returned.
		259
		260	Lock names should begin with a unique identifier (for example, cf::map::find
		261	uses map_find and cf::map::load uses map_load).
		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
		267	=cut
		268
		269	our %LOCK;
		270
		271	sub lock_wait($) {
		272	my ($key) = @_;
		273
		274	# wait for lock, if any
		275	while ($LOCK{$key}) {
		276	push @{ $LOCK{$key} }, $Coro::current;
		277	Coro::schedule;
		278	}
184	}	279	}
		280
		281	sub lock_acquire($) {
		282	my ($key) = @_;
		283
		284	# wait, to be sure we are not locked
		285	lock_wait $key;
		286
		287	$LOCK{$key} = [];
		288
		289	Coro::guard {
		290	# wake up all waiters, to be on the safe side
		291	$_->ready for @{ delete $LOCK{$key} };
		292	}
		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	$guard
		309	}
		310
		311	=item cf::async { BLOCK }
		312
		313	Currently the same as Coro::async_pool, meaning you cannot use
		314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		315	thing you are allowed to do is call C<prio> on it.
		316
		317	=cut
		318
		319	BEGIN { *async = \&Coro::async_pool }
185		320
186	=item cf::sync_job { BLOCK }	321	=item cf::sync_job { BLOCK }
187		322
188	The design of crossfire+ requires that the main coro ($Coro::main) is	323	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	324	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	332	=cut
198		333
199	sub sync_job(&) {	334	sub sync_job(&) {
200	my ($job) = @_;	335	my ($job) = @_;
201		336
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
		340	# this is the main coro, too bad, we have to block
		341	# till the operation succeeds, freezing the server :/
		342
212	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	344	# (but this is cancel-safe)
		345	my $freeze_guard = freeze_mainloop;
		346
		347	my $busy = 1;
		348	my @res;
		349
		350	(async {
		351	@res = eval { $job->() };
		352	warn $@ if $@;
		353	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	354	})->prio (Coro::PRIO_MAX);
		355
215	while ($busy) {	356	while ($busy) {
216	Coro::cede_notself;	357	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	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
		366
		367	wantarray ? @res : $res[0]
219	} else {	368	} else {
220	$coro->join;	369	# we are in another coroutine, how wonderful, everything just works
		370
		371	$job->()
221	}	372	}
222
223	wantarray ? @res : $res[0]
224	}	373	}
225		374
226	=item $coro = cf::coro { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
227		376
228	Creates and returns a new coro. This coro is automcatially being canceled	377	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	378	extension calling this is being unloaded.
230		379
231	=cut	380	=cut
232		381
233	sub coro(&) {	382	sub async_ext(&) {
234	my $cb = shift;	383	my $cb = shift;
235		384
236	my $coro; $coro = async {	385	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		386
243	$coro->on_destroy (sub {	387	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	388	delete $EXT_CORO{$coro+0};
245	});	389	});
246	$EXT_CORO{$coro+0} = $coro;	390	$EXT_CORO{$coro+0} = $coro;
247		391
248	$coro	392	$coro
249	}	393	}
250		394
251	sub write_runtime {	395	sub write_runtime {
252	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";
253		404
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	406	or return;
256		407
257	my $value = $cf::RUNTIME;	408	my $value = $cf::RUNTIME + 90 + 10;
		409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	413	and return;
260		414
		415	# always fsync - this file is important
261	aio_fsync $fh	416	aio_fsync $fh
262	and return;	417	and return;
263		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
264	close $fh	422	close $fh
265	or return;	423	or return;
266		424
267	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
268	and return;	426	and return;
269		427
		428	warn "runtime file written.\n";
		429
270	1	430	1
271	}	431	}
272		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
273	=back	444	=back
274		445
275	=cut	446	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		447
387	#############################################################################	448	#############################################################################
388		449
389	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
390		451
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	578	our @CB_MAP = ();
518		579
519	my %attachment;	580	my %attachment;
520		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
521	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
523		590
524	use sort 'stable';	591	use sort 'stable';
525		592
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
560		627
561	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		632
566	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	634	my $pkg = shift @arg;
568		635
569	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
610	if (ref $_[0]) {	677	if (ref $_[0]) {
611	_object_attach @_;	678	_object_attach @_;
612	} else {	679	} else {
613	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
614	}	681	}
		682	_recalc_want;
615	};	683	};
616		684
617	# all those should be optimised	685	# all those should be optimised
618	sub cf::attachable::detach {	686	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
623	reattach ($obj);	691	reattach ($obj);
624	} else {	692	} else {
625	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
626	}	694	}
		695	_recalc_want;
627	};	696	};
628		697
629	sub cf::attachable::attached {	698	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
631		700
…		…
696	# object support	765	# object support
697		766
698	sub reattach {	767	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		772
702	my $registry = $obj->registry;	773	my $registry = $obj->registry;
703		774
704	@$registry = ();	775	@$registry = ();
705		776
…		…
752	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
753		824
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	829	close $fh;
759		830
760	if (@$objs) {	831	if (@$objs) {
761	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) {
762	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	837	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
768	}	839	}
769	} else {	840	} else {
770	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
798	or return;	869	or return;
799		870
800	unless (aio_stat "$filename.pst") {	871	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	872	(aio_load "$filename.pst", $av) >= 0
802	or return;	873	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
804	}	875	}
805		876
		877	warn sprintf "loading %s (%d)\n",
		878	$filename, length $data, scalar @{$av || []};
806	return ($data, $av);	879	return ($data, $av);
807	}	880	}
808		881
809	#############################################################################	882	#############################################################################
810	# command handling &c	883	# command handling &c
…		…
835	=cut	908	=cut
836		909
837	sub register_extcmd {	910	sub register_extcmd {
838	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
839		912
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
844	}	914	}
845		915
846	cf::player->attach (	916	cf::player->attach (
847	on_command => sub {	917	on_command => sub {
848	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
861		931
862	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
863		933
864	if (ref $msg) {	934	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	938	}
869	}	939	}
870	} else {	940	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		943
874	cf::override;	944	cf::override;
875	},	945	},
876	);	946	);
877		947
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	948	sub load_extension {
885	my ($path) = @_;	949	my ($path) = @_;
886		950
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
888	my $base = $1;	952	my $base = $1;
889	my $pkg = $1;	953	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
892		956
893	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
894		958
895	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
896	or die "$path: $!";	960	or die "$path: $!";
897		961
898	my $source =	962	my $source =
899	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
902	. "\n};\n1";	966	. "\n};\n1";
903		967
904	eval $source	968	unless (eval $source) {
905	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
906	: "extension disabled.\n";	970	: "extension disabled.\n";
907		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908	push @exts, $pkg;	972	warn $@;
909	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
910		974	exit 1;
911	# no strict 'refs';	975	}
912	# @{"$pkg\::ISA"} = ext::;	976	die $@;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	977	}
927		978
928	# remove commands	979	push @EXTS, $pkg;
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	980	}
953		981
954	sub load_extensions {	982	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	984	next unless -r $ext;
…		…
960	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
961	}	989	}
962	}	990	}
963		991
964	#############################################################################	992	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001		993
1002	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1003		995
1004	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1005		997
		998	=cut
		999
		1000	package cf::player;
		1001
		1002	use Coro::AIO;
		1003
1006	=head3 cf::player	1004	=head3 cf::player
1007		1005
1008	=over 4	1006	=over 4
1009		1007
1010	=item cf::player::exists $login	1008	=item cf::player::find $login
1011		1009
1012	Returns true when the given account exists.	1010	Returns the given player object, loading it if necessary (might block).
1013		1011
1014	=cut	1012	=cut
1015		1013
1016	sub cf::player::exists($) {	1014	sub playerdir($) {
1017	cf::player::find $_[0]	1015	"$PLAYERDIR/"
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1019	}	1017	}
1020		1018
		1019	sub path($) {
		1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1021
		1022	(playerdir $login) . "/playerdata"
		1023	}
		1024
		1025	sub find_active($) {
		1026	$cf::PLAYER{$_[0]}
		1027	and $cf::PLAYER{$_[0]}->active
		1028	and $cf::PLAYER{$_[0]}
		1029	}
		1030
		1031	sub exists($) {
		1032	my ($login) = @_;
		1033
		1034	$cf::PLAYER{$login}
		1035	or cf::sync_job { !aio_stat path $login }
		1036	}
		1037
		1038	sub find($) {
		1039	return $cf::PLAYER{$_[0]} || do {
		1040	my $login = $_[0];
		1041
		1042	my $guard = cf::lock_acquire "user_find:$login";
		1043
		1044	$cf::PLAYER{$_[0]} || do {
		1045	# rename old playerfiles to new ones
		1046	#TODO: remove when no longer required
		1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1050	aio_unlink +(playerdir $login) . "/$login.pl";
		1051
		1052	my $pl = load_pl path $login
		1053	or return;
		1054	$cf::PLAYER{$login} = $pl
		1055	}
		1056	}
		1057	}
		1058
		1059	sub save($) {
		1060	my ($pl) = @_;
		1061
		1062	return if $pl->{deny_save};
		1063
		1064	my $path = path $pl;
		1065	my $guard = cf::lock_acquire "user_save:$path";
		1066
		1067	return if $pl->{deny_save};
		1068
		1069	aio_mkdir playerdir $pl, 0770;
		1070	$pl->{last_save} = $cf::RUNTIME;
		1071
		1072	$pl->save_pl ($path);
		1073	Coro::cede;
		1074	}
		1075
		1076	sub new($) {
		1077	my ($login) = @_;
		1078
		1079	my $self = create;
		1080
		1081	$self->ob->name ($login);
		1082	$self->{deny_save} = 1;
		1083
		1084	$cf::PLAYER{$login} = $self;
		1085
		1086	$self
		1087	}
		1088
		1089	=item $pl->quit_character
		1090
		1091	Nukes the player without looking back. If logged in, the connection will
		1092	be destroyed. May block for a long time.
		1093
		1094	=cut
		1095
		1096	sub quit_character {
		1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
		1100
		1101	$pl->{deny_save} = 1;
		1102	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1103
		1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1105	$pl->deactivate;
		1106	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1107	$pl->ns->destroy if $pl->ns;
		1108
		1109	my $path = playerdir $pl;
		1110	my $temp = "$path~$cf::RUNTIME~deleting~";
		1111	aio_rename $path, $temp;
		1112	delete $cf::PLAYER{$pl->ob->name};
		1113	$pl->destroy;
		1114
		1115	my $prefix = qr<^~\Q$name\E/>;
		1116
		1117	# nuke player maps
		1118	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1119
		1120	IO::AIO::aio_rmtree $temp;
		1121	}
		1122
		1123	=item $pl->kick
		1124
		1125	Kicks a player out of the game. This destroys the connection.
		1126
		1127	=cut
		1128
		1129	sub kick {
		1130	my ($pl, $kicker) = @_;
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1133	$pl->killer ("kicked");
		1134	$pl->ns->destroy;
		1135	}
		1136
		1137	=item cf::player::list_logins
		1138
		1139	Returns am arrayref of all valid playernames in the system, can take a
		1140	while and may block, so not sync_job-capable, ever.
		1141
		1142	=cut
		1143
		1144	sub list_logins {
		1145	my $dirs = aio_readdir $PLAYERDIR
		1146	or return [];
		1147
		1148	my @logins;
		1149
		1150	for my $login (@$dirs) {
		1151	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1152	aio_read $fh, 0, 512, my $buf, 0 or next;
		1153	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1154
		1155	utf8::decode $login;
		1156	push @logins, $login;
		1157	}
		1158
		1159	\@logins
		1160	}
		1161
		1162	=item $player->maps
		1163
		1164	Returns an arrayref of map paths that are private for this
		1165	player. May block.
		1166
		1167	=cut
		1168
		1169	sub maps($) {
		1170	my ($pl) = @_;
		1171
		1172	$pl = ref $pl ? $pl->ob->name : $pl;
		1173
		1174	my $files = aio_readdir playerdir $pl
		1175	or return;
		1176
		1177	my @paths;
		1178
		1179	for (@$files) {
		1180	utf8::decode $_;
		1181	next if /\.(?:pl|pst)$/;
		1182	next unless /^$PATH_SEP/o;
		1183
		1184	push @paths, cf::map::normalise "~$pl/$_";
		1185	}
		1186
		1187	\@paths
		1188	}
		1189
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1022		1191
1023	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1024		1193
1025	=cut	1194	=cut
1026		1195
1027	sub cf::player::ext_reply($$$%) {	1196	sub ext_reply($$%) {
1028	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1029		1198
1030	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1031		1200
1032	$self->send ("ext " . to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
		1202	}
		1203
		1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		1211	my ($self, $type, %msg) = @_;
		1212
		1213	$self->ns->ext_event ($type, %msg);
		1214	}
		1215
		1216	=head3 cf::region
		1217
		1218	=over 4
		1219
		1220	=cut
		1221
		1222	package cf::region;
		1223
		1224	=item cf::region::find_by_path $path
		1225
		1226	Tries to decuce the probable region for a map knowing only its path.
		1227
		1228	=cut
		1229
		1230	sub find_by_path($) {
		1231	my ($path) = @_;
		1232
		1233	my ($match, $specificity);
		1234
		1235	for my $region (list) {
		1236	if ($region->match && $path =~ $region->match) {
		1237	($match, $specificity) = ($region, $region->specificity)
		1238	if $region->specificity > $specificity;
		1239	}
		1240	}
		1241
		1242	$match
1033	}	1243	}
1034		1244
1035	=back	1245	=back
1036
1037		1246
1038	=head3 cf::map	1247	=head3 cf::map
1039		1248
1040	=over 4	1249	=over 4
1041		1250
…		…
1044	package cf::map;	1253	package cf::map;
1045		1254
1046	use Fcntl;	1255	use Fcntl;
1047	use Coro::AIO;	1256	use Coro::AIO;
1048		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1049	our $MAX_RESET = 7200;	1262	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1263	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1264
1054	sub generate_random_map {	1265	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1268	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1277	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1279	(cf::region::find $rmp->{region}), $rmp->{custom}
		1280	)
		1281	}
		1282
		1283	=item cf::map->register ($regex, $prio)
		1284
		1285	Register a handler for the map path matching the given regex at the
		1286	givne priority (higher is better, built-in handlers have priority 0, the
		1287	default).
		1288
		1289	=cut
		1290
		1291	sub register {
		1292	my (undef, $regex, $prio) = @_;
		1293	my $pkg = caller;
		1294
		1295	no strict;
		1296	push @{"$pkg\::ISA"}, __PACKAGE__;
		1297
		1298	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1299	}
		1300
		1301	# also paths starting with '/'
		1302	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1303
		1304	sub thawer_merge {
		1305	my ($self, $merge) = @_;
		1306
		1307	# we have to keep some variables in memory intact
		1308	local $self->{path};
		1309	local $self->{load_path};
		1310
		1311	$self->SUPER::thawer_merge ($merge);
		1312	}
		1313
		1314	sub normalise {
		1315	my ($path, $base) = @_;
		1316
		1317	$path = "$path"; # make sure its a string
		1318
		1319	$path =~ s/\.map$//;
		1320
		1321	# map plan:
		1322	#
		1323	# /! non-realised random map exit (special hack!)
		1324	# {... are special paths that are not being touched
		1325	# ?xxx/... are special absolute paths
		1326	# ?random/... random maps
		1327	# /... normal maps
		1328	# ~user/... per-player map of a specific user
		1329
		1330	$path =~ s/$PATH_SEP/\//go;
		1331
		1332	# treat it as relative path if it starts with
		1333	# something that looks reasonable
		1334	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1335	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1336
		1337	$base =~ s{[^/]+/?$}{};
		1338	$path = "$base/$path";
		1339	}
		1340
		1341	for ($path) {
		1342	redo if s{//}{/};
		1343	redo if s{/\.?/}{/};
		1344	redo if s{/[^/]+/\.\./}{/};
		1345	}
		1346
		1347	$path
		1348	}
		1349
		1350	sub new_from_path {
		1351	my (undef, $path, $base) = @_;
		1352
		1353	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1354
		1355	$path = normalise $path, $base;
		1356
		1357	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1358	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1359	my $self = bless cf::map::new, $pkg;
		1360	$self->{path} = $path; $self->path ($path);
		1361	$self->init; # pass $1 etc.
		1362	return $self;
		1363	}
		1364	}
		1365
		1366	Carp::carp "unable to resolve path '$path' (base '$base').";
		1367	()
		1368	}
		1369
		1370	sub init {
		1371	my ($self) = @_;
		1372
		1373	$self
		1374	}
		1375
		1376	sub as_string {
		1377	my ($self) = @_;
		1378
		1379	"$self->{path}"
		1380	}
		1381
		1382	# the displayed name, this is a one way mapping
		1383	sub visible_name {
		1384	&as_string
		1385	}
		1386
		1387	# the original (read-only) location
		1388	sub load_path {
		1389	my ($self) = @_;
		1390
		1391	"$MAPDIR/$self->{path}.map"
		1392	}
		1393
		1394	# the temporary/swap location
		1395	sub save_path {
		1396	my ($self) = @_;
		1397
		1398	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1399	"$TMPDIR/$path.map"
		1400	}
		1401
		1402	# the unique path, undef == no special unique path
		1403	sub uniq_path {
		1404	my ($self) = @_;
		1405
		1406	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1407	"$UNIQUEDIR/$path"
1071	}	1408	}
1072		1409
1073	# and all this just because we cannot iterate over	1410	# and all this just because we cannot iterate over
1074	# all maps in C++...	1411	# all maps in C++...
1075	sub change_all_map_light {	1412	sub change_all_map_light {
1076	my ($change) = @_;	1413	my ($change) = @_;
1077		1414
1078	$_->change_map_light ($change) for values %cf::MAP;	1415	$_->change_map_light ($change)
		1416	for grep $_->outdoor, values %cf::MAP;
1079	}	1417	}
1080		1418
		1419	sub decay_objects {
		1420	my ($self) = @_;
		1421
		1422	return if $self->{deny_reset};
		1423
		1424	$self->do_decay_objects;
		1425	}
		1426
		1427	sub unlink_save {
		1428	my ($self) = @_;
		1429
		1430	utf8::encode (my $save = $self->save_path);
		1431	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1432	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1433	}
		1434
1081	sub try_load_header($) {	1435	sub load_header_from($) {
1082	my ($path) = @_;	1436	my ($self, $path) = @_;
1083		1437
1084	utf8::encode $path;	1438	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1439	#aio_open $path, O_RDONLY, 0
		1440	# or return;
		1441
		1442	$self->_load_header ($path)
1086	or return;	1443	or return;
1087		1444
1088	my $map = cf::map::new	1445	$self->{load_path} = $path;
		1446
		1447	1
		1448	}
		1449
		1450	sub load_header_orig {
		1451	my ($self) = @_;
		1452
		1453	$self->load_header_from ($self->load_path)
		1454	}
		1455
		1456	sub load_header_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->load_header_from ($self->save_path)
		1460	}
		1461
		1462	sub prepare_temp {
		1463	my ($self) = @_;
		1464
		1465	$self->last_access ((delete $self->{last_access})
		1466	|| $cf::RUNTIME); #d#
		1467	# safety
		1468	$self->{instantiate_time} = $cf::RUNTIME
		1469	if $self->{instantiate_time} > $cf::RUNTIME;
		1470	}
		1471
		1472	sub prepare_orig {
		1473	my ($self) = @_;
		1474
		1475	$self->{load_original} = 1;
		1476	$self->{instantiate_time} = $cf::RUNTIME;
		1477	$self->last_access ($cf::RUNTIME);
		1478	$self->instantiate;
		1479	}
		1480
		1481	sub load_header {
		1482	my ($self) = @_;
		1483
		1484	if ($self->load_header_temp) {
		1485	$self->prepare_temp;
		1486	} else {
		1487	$self->load_header_orig
1089	or return;	1488	or return;
		1489	$self->prepare_orig;
		1490	}
1090		1491
1091	$map->load_header ($path)	1492	$self->{deny_reset} = 1
1092	or return;	1493	if $self->no_reset;
1093		1494
1094	$map->{load_path} = $path;	1495	$self->default_region (cf::region::find_by_path $self->{path})
1095	use Data::Dumper; warn Dumper $map;#d#	1496	unless $self->default_region;
1096		1497
1097	$map	1498	1
1098	}	1499	}
1099		1500
		1501	sub find;
1100	sub find_map {	1502	sub find {
1101	my ($path, $origin) = @_;	1503	my ($path, $origin) = @_;
1102		1504
1103	#warn "find_map<$path,$origin>\n";#d#	1505	$path = normalise $path, $origin && $origin->path;
1104		1506
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1507	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1508
1108	$cf::MAP{$key} || do {	1509	$cf::MAP{$path} || do {
1109	# do it the slow way	1510	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1511	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1512	or return;
1124		1513
1125	$map->{instantiate_time} = $cf::RUNTIME;
1126	$map->instantiate;
1127
1128	# per-player maps become, after loading, normal maps
1129	$map->per_player (0) if $path->{user_rel};
1130	}
1131
1132	$map->path ($key);
1133	$map->{path} = $path;
1134	$map->last_access ($cf::RUNTIME);	1514	$map->{last_save} = $cf::RUNTIME;
1135		1515
1136	$map->reset if $map->should_reset;	1516	$map->load_header
		1517	or return;
1137		1518
		1519	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1520	# doing this can freeze the server in a sync job, obviously
		1521	#$cf::WAIT_FOR_TICK->wait;
		1522	$map->reset;
		1523	undef $guard;
		1524	return find $path;
		1525	}
		1526
1138	$cf::MAP{$key} = $map	1527	$cf::MAP{$path} = $map
1139	}	1528	}
1140	}	1529	}
		1530
		1531	sub pre_load { }
		1532	sub post_load { }
1141		1533
1142	sub load {	1534	sub load {
1143	my ($self) = @_;	1535	my ($self) = @_;
1144		1536
1145	return if $self->in_memory != cf::MAP_SWAPPED;	1537	local $self->{deny_reset} = 1; # loading can take a long time
1146
1147	$self->in_memory (cf::MAP_LOADING);
1148		1538
1149	my $path = $self->{path};	1539	my $path = $self->{path};
1150		1540
		1541	{
		1542	my $guard = cf::lock_acquire "map_load:$path";
		1543
		1544	return if $self->in_memory != cf::MAP_SWAPPED;
		1545
		1546	$self->in_memory (cf::MAP_LOADING);
		1547
1151	$self->alloc;	1548	$self->alloc;
		1549
		1550	$self->pre_load;
		1551	Coro::cede;
		1552
1152	$self->load_objects ($self->{load_path}, 1)	1553	$self->_load_objects ($self->{load_path}, 1)
1153	or return;	1554	or return;
1154		1555
		1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1557	if delete $self->{load_original};
		1558
1155	if (my $uniq = $path->uniq_path) {	1559	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	1560	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	1561	if (aio_open $uniq, O_RDONLY, 0) {
1158	$self->clear_unique_items;	1562	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	1563	$self->_load_objects ($uniq, 0);
1160	}	1564	}
1161	}	1565	}
1162		1566
		1567	Coro::cede;
1163	# now do the right thing for maps	1568	# now do the right thing for maps
1164	$self->link_multipart_objects;	1569	$self->link_multipart_objects;
1165
1166	if ($self->{path}->is_style_map) {
1167	$self->{deny_save} = 1;
1168	$self->{deny_reset} = 1;
1169	} else {
1170	$self->fix_auto_apply;
1171	$self->decay_objects;
1172	$self->update_buttons;
1173	$self->set_darkness_map;
1174	$self->difficulty ($self->estimate_difficulty)	1570	$self->difficulty ($self->estimate_difficulty)
1175	unless $self->difficulty;	1571	unless $self->difficulty;
		1572	Coro::cede;
		1573
		1574	unless ($self->{deny_activate}) {
		1575	$self->decay_objects;
		1576	$self->fix_auto_apply;
		1577	$self->update_buttons;
		1578	Coro::cede;
		1579	$self->set_darkness_map;
		1580	Coro::cede;
1176	$self->activate;	1581	$self->activate;
1177	}	1582	}
1178		1583
1179	$self->in_memory (cf::MAP_IN_MEMORY);	1584	$self->in_memory (cf::MAP_IN_MEMORY);
1180	}	1585	}
1181		1586
1182	sub load_map_sync {	1587	$self->post_load;
		1588	}
		1589
		1590	sub customise_for {
		1591	my ($self, $ob) = @_;
		1592
		1593	return find "~" . $ob->name . "/" . $self->{path}
		1594	if $self->per_player;
		1595
		1596	# return find "?party/" . $ob->name . "/" . $self->{path}
		1597	# if $self->per_party;
		1598
		1599	$self
		1600	}
		1601
		1602	# find and load all maps in the 3x3 area around a map
		1603	sub load_diag {
		1604	my ($map) = @_;
		1605
		1606	my @diag; # diagonal neighbours
		1607
		1608	for (0 .. 3) {
		1609	my $neigh = $map->tile_path ($_)
		1610	or next;
		1611	$neigh = find $neigh, $map
		1612	or next;
		1613	$neigh->load;
		1614
		1615	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1616	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1617	}
		1618
		1619	for (@diag) {
		1620	my $neigh = find @$_
		1621	or next;
		1622	$neigh->load;
		1623	}
		1624	}
		1625
		1626	sub find_sync {
1183	my ($path, $origin) = @_;	1627	my ($path, $origin) = @_;
1184		1628
1185	#warn "load_map_sync<$path, $origin>\n";#d#	1629	cf::sync_job { find $path, $origin }
		1630	}
1186		1631
1187	cf::sync_job {	1632	sub do_load_sync {
1188	my $map = cf::map::find_map $path, $origin	1633	my ($map) = @_;
1189	or return;	1634
		1635	cf::sync_job { $map->load };
		1636	}
		1637
		1638	our %MAP_PREFETCH;
		1639	our $MAP_PREFETCHER = undef;
		1640
		1641	sub find_async {
		1642	my ($path, $origin) = @_;
		1643
		1644	$path = normalise $path, $origin && $origin->{path};
		1645
		1646	if (my $map = $cf::MAP{$path}) {
		1647	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1648	}
		1649
		1650	undef $MAP_PREFETCH{$path};
		1651	$MAP_PREFETCHER ||= cf::async {
		1652	while (%MAP_PREFETCH) {
		1653	for my $path (keys %MAP_PREFETCH) {
		1654	my $map = find $path
		1655	or next;
1190	$map->load;	1656	$map->load;
1191	$map	1657
		1658	delete $MAP_PREFETCH{$path};
		1659	}
		1660	}
		1661	undef $MAP_PREFETCHER;
1192	}	1662	};
		1663	$MAP_PREFETCHER->prio (6);
		1664
		1665	()
1193	}	1666	}
1194		1667
1195	sub save {	1668	sub save {
1196	my ($self) = @_;	1669	my ($self) = @_;
1197		1670
1198	my $save = $self->{path}->save_path; utf8::encode $save;	1671	my $lock = cf::lock_acquire "map_data:" . $self->path;
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		1672
1201	$self->{last_save} = $cf::RUNTIME;	1673	$self->{last_save} = $cf::RUNTIME;
1202		1674
1203	return unless $self->dirty;	1675	return unless $self->dirty;
1204		1676
		1677	my $save = $self->save_path; utf8::encode $save;
		1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1679
1205	$self->{load_path} = $save;	1680	$self->{load_path} = $save;
1206		1681
1207	return if $self->{deny_save};	1682	return if $self->{deny_save};
1208		1683
1209	warn "saving map ", $self->path;	1684	local $self->{last_access} = $self->last_access;#d#
		1685
		1686	cf::async {
		1687	$_->contr->save for $self->players;
		1688	};
1210		1689
1211	if ($uniq) {	1690	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1691	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);	1692	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {	1693	} else {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1694	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}	1695	}
1217	}	1696	}
1218		1697
1219	sub swap_out {	1698	sub swap_out {
1220	my ($self) = @_;	1699	my ($self) = @_;
		1700
		1701	# save first because save cedes
		1702	$self->save;
		1703
		1704	my $lock = cf::lock_acquire "map_data:" . $self->path;
1221		1705
1222	return if $self->players;	1706	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;	1707	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};	1708	return if $self->{deny_save};
1225		1709
1226	$self->save;
1227	$self->clear;	1710	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	1711	$self->in_memory (cf::MAP_SWAPPED);
1229	}	1712	}
1230		1713
		1714	sub reset_at {
		1715	my ($self) = @_;
		1716
		1717	# TODO: safety, remove and allow resettable per-player maps
		1718	return 1e99 if $self->{deny_reset};
		1719
		1720	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1721	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1722
		1723	$time + $to
		1724	}
		1725
1231	sub should_reset {	1726	sub should_reset {
1232	my ($map) = @_;	1727	my ($self) = @_;
1233		1728
1234	# TODO: safety, remove and allow resettable per-player maps	1729	$self->reset_at <= $cf::RUNTIME
1235	return if $map->{path}{user_rel};#d#
1236	return if $map->{deny_reset};
1237	#return unless $map->reset_timeout;
1238
1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1240
1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
1242	}	1730	}
1243		1731
1244	sub reset {	1732	sub reset {
1245	my ($self) = @_;	1733	my ($self) = @_;
1246		1734
		1735	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1736
1247	return if $self->players;	1737	return if $self->players;
1248	return if $self->{path}{user_rel};#d#
1249		1738
1250	warn "resetting map ", $self->path;#d#	1739	warn "resetting map ", $self->path;
1251		1740
1252	utf8::encode (my $save = $self->{path}->save_path);	1741	$self->in_memory (cf::MAP_SWAPPED);
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;	1742
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";	1743	# need to save uniques path
		1744	unless ($self->{deny_save}) {
		1745	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1746
		1747	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1748	if $uniq;
		1749	}
		1750
		1751	delete $cf::MAP{$self->path};
		1752
		1753	$self->clear;
1255		1754
1256	$_->clear_links_to ($self) for values %cf::MAP;	1755	$_->clear_links_to ($self) for values %cf::MAP;
1257		1756
		1757	$self->unlink_save;
1258	$self->clear;	1758	$self->destroy;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}	1759	}
1262		1760
1263	sub customise_for {	1761	my $nuke_counter = "aaaa";
1264	my ($map, $ob) = @_;
1265		1762
1266	if ($map->per_player) {	1763	sub nuke {
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1764	my ($self) = @_;
		1765
		1766	delete $cf::MAP{$self->path};
		1767
		1768	$self->unlink_save;
		1769
		1770	bless $self, "cf::map";
		1771	delete $self->{deny_reset};
		1772	$self->{deny_save} = 1;
		1773	$self->reset_timeout (1);
		1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1775
		1776	$cf::MAP{$self->path} = $self;
		1777
		1778	$self->reset; # polite request, might not happen
		1779	}
		1780
		1781	=item $maps = cf::map::tmp_maps
		1782
		1783	Returns an arrayref with all map paths of currently instantiated and saved
		1784	maps.
		1785
		1786	=cut
		1787
		1788	sub tmp_maps() {
1268	}	1789	[
1269		1790	map {
1270	$map	1791	utf8::decode $_;
		1792	!/\.(?:pst|meta)$/ && /^$PATH_SEP/o
		1793	? normalise $_
		1794	: ()
		1795	} @{ aio_readdir $TMPDIR or [] }
		1796	]
1271	}	1797	}
1272		1798
1273	sub emergency_save {	1799	=item cf::map::unique_maps
1274	local $cf::FREEZE = 1;
1275		1800
1276	warn "enter emergency map save\n";	1801	Returns an arrayref of paths of all shared maps that have
		1802	instantiated unique items. May block.
1277		1803
1278	cf::sync_job {	1804	=cut
1279	warn "begin emergency map save\n";
1280	$_->save for values %cf::MAP;
1281	};
1282		1805
1283	warn "end emergency map save\n";	1806	sub unique_maps() {
		1807	[
		1808	map {
		1809	utf8::decode $_;
		1810	!/\.(?:pst|meta)$/ && /^$PATH_SEP/o
		1811	? normalise $_
		1812	: ()
		1813	} @{ aio_readdir $UNIQUEDIR or [] }
		1814	]
1284	}	1815	}
1285		1816
1286	package cf;	1817	package cf;
1287		1818
1288	=back	1819	=back
1289		1820
		1821	=head3 cf::object
		1822
		1823	=cut
		1824
		1825	package cf::object;
		1826
		1827	=over 4
		1828
		1829	=item $ob->inv_recursive
		1830
		1831	Returns the inventory of the object _and_ their inventories, recursively.
		1832
		1833	=cut
		1834
		1835	sub inv_recursive_;
		1836	sub inv_recursive_ {
		1837	map { $_, inv_recursive_ $_->inv } @_
		1838	}
		1839
		1840	sub inv_recursive {
		1841	inv_recursive_ inv $_[0]
		1842	}
		1843
		1844	package cf;
		1845
		1846	=back
1290		1847
1291	=head3 cf::object::player	1848	=head3 cf::object::player
1292		1849
1293	=over 4	1850	=over 4
1294		1851
…		…
1330	(ref $cf::CFG{"may_$access"}	1887	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1888	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	1889	: $cf::CFG{"may_$access"})
1333	}	1890	}
1334		1891
		1892	=item $player_object->enter_link
		1893
		1894	Freezes the player and moves him/her to a special map (C<{link}>).
		1895
		1896	The player should be reasonably safe there for short amounts of time. You
		1897	I<MUST> call C<leave_link> as soon as possible, though.
		1898
		1899	Will never block.
		1900
		1901	=item $player_object->leave_link ($map, $x, $y)
		1902
		1903	Moves the player out of the special C<{link}> map onto the specified
		1904	map. If the map is not valid (or omitted), the player will be moved back
		1905	to the location he/she was before the call to C<enter_link>, or, if that
		1906	fails, to the emergency map position.
		1907
		1908	Might block.
		1909
		1910	=cut
		1911
		1912	sub link_map {
		1913	unless ($LINK_MAP) {
		1914	$LINK_MAP = cf::map::find "{link}"
		1915	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1916	$LINK_MAP->load;
		1917	}
		1918
		1919	$LINK_MAP
		1920	}
		1921
1335	sub cf::object::player::enter_link {	1922	sub cf::object::player::enter_link {
1336	my ($self) = @_;	1923	my ($self) = @_;
1337		1924
1338	return if $self->map == $LINK_MAP;
1339
1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1341	if $self->map;
1342
1343	$self->enter_map ($LINK_MAP, 20, 20);
1344	$self->deactivate_recursive;	1925	$self->deactivate_recursive;
		1926
		1927	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1928
		1929	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1930	if $self->map && $self->map->{path} ne "{link}";
		1931
		1932	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1345	}	1933	}
1346		1934
1347	sub cf::object::player::leave_link {	1935	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	1936	my ($self, $map, $x, $y) = @_;
1349		1937
		1938	return unless $self->contr->active;
		1939
1350	my $link_pos = delete $self->{_link_pos};	1940	my $link_pos = delete $self->{_link_pos};
1351		1941
1352	unless ($map) {	1942	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	1943	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	1944	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	1945	$map = cf::map::find $map;
1358		1946
1359	unless ($map) {	1947	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	1948	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	1949	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	1950	or die "FATAL: cannot load emergency map\n";
1363	}	1951	}
1364	}	1952	}
1365		1953
1366	($x, $y) = (-1, -1)	1954	($x, $y) = (-1, -1)
…		…
1369	# use -1 or undef as default coordinates, not 0, 0	1957	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	1958	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	1959	if $x <=0 && $y <= 0;
1372		1960
1373	$map->load;	1961	$map->load;
		1962	$map->load_diag;
1374		1963
		1964	return unless $self->contr->active;
1375	$self->activate_recursive;	1965	$self->activate_recursive;
		1966
		1967	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1376	$self->enter_map ($map, $x, $y);	1968	$self->enter_map ($map, $x, $y);
1377	}	1969	}
1378		1970
1379	=item $player_object->goto_map ($map, $x, $y)	1971	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1380		1972
1381	=cut	1973	Moves the player to the given map-path and coordinates by first freezing
		1974	her, loading and preparing them map, calling the provided $check callback
		1975	that has to return the map if sucecssful, and then unfreezes the player on
		1976	the new (success) or old (failed) map position.
1382		1977
		1978	=cut
		1979
		1980	our $GOTOGEN;
		1981
1383	sub cf::object::player::goto_map {	1982	sub cf::object::player::goto {
1384	my ($self, $path, $x, $y) = @_;	1983	my ($self, $path, $x, $y, $check) = @_;
		1984
		1985	# do generation counting so two concurrent goto's will be executed in-order
		1986	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1385		1987
1386	$self->enter_link;	1988	$self->enter_link;
1387		1989
1388	(Coro::async {	1990	(async {
1389	$path = new cf::path $path;	1991	my $map = eval {
1390
1391	my $map = cf::map::find_map $path->as_string;	1992	my $map = cf::map::find $path;
		1993
		1994	if ($map) {
1392	$map = $map->customise_for ($self) if $map;	1995	$map = $map->customise_for ($self);
		1996	$map = $check->($map) if $check && $map;
		1997	} else {
		1998	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1999	}
1393		2000
1394	warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	2001	$map
		2002	};
1396		2003
		2004	if ($@) {
		2005	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2006	LOG llevError | logBacktrace, Carp::longmess $@;
		2007	}
		2008
		2009	if ($gen == $self->{_goto_generation}) {
		2010	delete $self->{_goto_generation};
1397	$self->leave_link ($map, $x, $y);	2011	$self->leave_link ($map, $x, $y);
		2012	}
1398	})->prio (1);	2013	})->prio (1);
1399	}	2014	}
1400		2015
1401	=item $player_object->enter_exit ($exit_object)	2016	=item $player_object->enter_exit ($exit_object)
1402		2017
…		…
1404		2019
1405	sub parse_random_map_params {	2020	sub parse_random_map_params {
1406	my ($spec) = @_;	2021	my ($spec) = @_;
1407		2022
1408	my $rmp = { # defaults	2023	my $rmp = { # defaults
1409	xsize => 10,	2024	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	2025	ysize => (cf::rndm 15, 40),
		2026	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2027	#layout => string,
1411	};	2028	};
1412		2029
1413	for (split /\n/, $spec) {	2030	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	2031	my ($k, $v) = split /\s+/, $_, 2;
1415		2032
…		…
1419	$rmp	2036	$rmp
1420	}	2037	}
1421		2038
1422	sub prepare_random_map {	2039	sub prepare_random_map {
1423	my ($exit) = @_;	2040	my ($exit) = @_;
		2041
		2042	my $guard = cf::lock_acquire "exit_prepare:$exit";
1424		2043
1425	# all this does is basically replace the /! path by	2044	# all this does is basically replace the /! path by
1426	# a new random map path (?random/...) with a seed	2045	# a new random map path (?random/...) with a seed
1427	# that depends on the exit object	2046	# that depends on the exit object
1428		2047
1429	my $rmp = parse_random_map_params $exit->msg;	2048	my $rmp = parse_random_map_params $exit->msg;
1430		2049
1431	if ($exit->map) {	2050	if ($exit->map) {
1432	$rmp->{region} = $exit->map->region_name;	2051	$rmp->{region} = $exit->region->name;
1433	$rmp->{origin_map} = $exit->map->path;	2052	$rmp->{origin_map} = $exit->map->path;
1434	$rmp->{origin_x} = $exit->x;	2053	$rmp->{origin_x} = $exit->x;
1435	$rmp->{origin_y} = $exit->y;	2054	$rmp->{origin_y} = $exit->y;
1436	}	2055	}
1437		2056
1438	$rmp->{random_seed} ||= $exit->random_seed;	2057	$rmp->{random_seed} ||= $exit->random_seed;
1439		2058
1440	my $data = cf::to_json $rmp;	2059	my $data = cf::to_json $rmp;
1441	my $md5 = Digest::MD5::md5_hex $data;	2060	my $md5 = Digest::MD5::md5_hex $data;
		2061	my $meta = "$RANDOMDIR/$md5.meta";
1442		2062
1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2063	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1444	aio_write $fh, 0, (length $data), $data, 0;	2064	aio_write $fh, 0, (length $data), $data, 0;
		2065	undef $fh;
		2066	aio_rename "$meta~", $meta;
1445		2067
1446	$exit->slaying ("?random/$md5");	2068	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	2069	$exit->msg (undef);
1448	}	2070	}
1449	}	2071	}
…		…
1451	sub cf::object::player::enter_exit {	2073	sub cf::object::player::enter_exit {
1452	my ($self, $exit) = @_;	2074	my ($self, $exit) = @_;
1453		2075
1454	return unless $self->type == cf::PLAYER;	2076	return unless $self->type == cf::PLAYER;
1455		2077
		2078	if ($exit->slaying eq "/!") {
		2079	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2080	# the problem is that $exit might not survive long enough
		2081	# so it needs to be done right now, right here
		2082	cf::sync_job { prepare_random_map $exit };
		2083	}
		2084
		2085	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2086	my $hp = $exit->stats->hp;
		2087	my $sp = $exit->stats->sp;
		2088
1456	$self->enter_link;	2089	$self->enter_link;
1457		2090
1458	(Coro::async {	2091	(async {
		2092	$self->deactivate_recursive; # just to be sure
1459	unless (eval {	2093	unless (eval {
1460		2094	$self->goto ($slaying, $hp, $sp);
1461	prepare_random_map $exit
1462	if $exit->slaying eq "/!";
1463
1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1466		2095
1467	1;	2096	1;
1468	}) {	2097	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	2098	$self->message ("Something went wrong deep within the crossfire server. "
1470	. "I'll try to bring you back to the map you were before. "	2099	. "I'll try to bring you back to the map you were before. "
1471	. "Please report this to the dungeon master",	2100	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	2101	cf::NDI_UNIQUE | cf::NDI_RED);
1473		2102
1474	warn "ERROR in enter_exit: $@";	2103	warn "ERROR in enter_exit: $@";
1475	$self->leave_link;	2104	$self->leave_link;
1476	}	2105	}
1477	})->prio (1);	2106	})->prio (1);
…		…
1490		2119
1491	sub cf::client::send_drawinfo {	2120	sub cf::client::send_drawinfo {
1492	my ($self, $text, $flags) = @_;	2121	my ($self, $text, $flags) = @_;
1493		2122
1494	utf8::encode $text;	2123	utf8::encode $text;
1495	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2124	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1496	}	2125	}
1497		2126
		2127	=item $client->ext_event ($type, %msg)
		2128
		2129	Sends an exti event to the client.
		2130
		2131	=cut
		2132
		2133	sub cf::client::ext_event($$%) {
		2134	my ($self, $type, %msg) = @_;
		2135
		2136	$msg{msgtype} = "event_$type";
		2137	$self->send_packet ("ext " . cf::to_json \%msg);
		2138	}
1498		2139
1499	=item $success = $client->query ($flags, "text", \&cb)	2140	=item $success = $client->query ($flags, "text", \&cb)
1500		2141
1501	Queues a query to the client, calling the given callback with	2142	Queues a query to the client, calling the given callback with
1502	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2143	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1527	on_reply => sub {	2168	on_reply => sub {
1528	my ($ns, $msg) = @_;	2169	my ($ns, $msg) = @_;
1529		2170
1530	# this weird shuffling is so that direct followup queries	2171	# this weird shuffling is so that direct followup queries
1531	# get handled first	2172	# get handled first
1532	my $queue = delete $ns->{query_queue};	2173	my $queue = delete $ns->{query_queue}
		2174	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		2175
1534	(shift @$queue)->[1]->($msg);	2176	(shift @$queue)->[1]->($msg);
		2177	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1535		2178
1536	push @{ $ns->{query_queue} }, @$queue;	2179	push @{ $ns->{query_queue} }, @$queue;
1537		2180
1538	if (@{ $ns->{query_queue} } == @$queue) {	2181	if (@{ $ns->{query_queue} } == @$queue) {
1539	if (@$queue) {	2182	if (@$queue) {
…		…
1543	}	2186	}
1544	}	2187	}
1545	},	2188	},
1546	);	2189	);
1547		2190
1548	=item $client->coro (\&cb)	2191	=item $client->async (\&cb)
1549		2192
1550	Create a new coroutine, running the specified callback. The coroutine will	2193	Create a new coroutine, running the specified callback. The coroutine will
1551	be automatically cancelled when the client gets destroyed (e.g. on logout,	2194	be automatically cancelled when the client gets destroyed (e.g. on logout,
1552	or loss of connection).	2195	or loss of connection).
1553		2196
1554	=cut	2197	=cut
1555		2198
1556	sub cf::client::coro {	2199	sub cf::client::async {
1557	my ($self, $cb) = @_;	2200	my ($self, $cb) = @_;
1558		2201
1559	my $coro; $coro = async {	2202	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		2203
1566	$coro->on_destroy (sub {	2204	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	2205	delete $self->{_coro}{$coro+0};
1568	});	2206	});
1569		2207
…		…
1602		2240
1603	# here we export the classes and methods available to script code	2241	# here we export the classes and methods available to script code
1604		2242
1605	=pod	2243	=pod
1606		2244
1607	The following fucntions and emthods are available within a safe environment:	2245	The following functions and methods are available within a safe environment:
1608		2246
1609	cf::object contr pay_amount pay_player map	2247	cf::object contr pay_amount pay_player map
1610	cf::object::player player	2248	cf::object::player player
1611	cf::player peaceful	2249	cf::player peaceful
1612	cf::map trigger	2250	cf::map trigger
…		…
1697	#############################################################################	2335	#############################################################################
1698		2336
1699	=head2 EXTENSION DATABASE SUPPORT	2337	=head2 EXTENSION DATABASE SUPPORT
1700		2338
1701	Crossfire maintains a very simple database for extension use. It can	2339	Crossfire maintains a very simple database for extension use. It can
1702	currently store anything that can be serialised using Storable, which	2340	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1703	excludes objects.	2341	convert to/from binary).
1704		2342
1705	The parameter C<$family> should best start with the name of the extension	2343	The parameter C<$family> should best start with the name of the extension
1706	using it, it should be unique.	2344	using it, it should be unique.
1707		2345
1708	=over 4	2346	=over 4
1709		2347
1710	=item $hashref = cf::db_get $family
1711
1712	Return a hashref for use by the extension C<$family>, which can be
1713	modified. After modifications, you have to call C<cf::db_dirty> or
1714	C<cf::db_sync>.
1715
1716	=item $value = cf::db_get $family => $key	2348	=item $value = cf::db_get $family => $key
1717		2349
1718	Returns a single value from the database	2350	Returns a single value from the database.
1719
1720	=item cf::db_put $family => $hashref
1721
1722	Stores the given family hashref into the database. Updates are delayed, if
1723	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1724		2351
1725	=item cf::db_put $family => $key => $value	2352	=item cf::db_put $family => $key => $value
1726		2353
1727	Stores the given C<$value> in the family hash. Updates are delayed, if you	2354	Stores the given C<$value> in the family.
1728	want the data to be synced to disk immediately, use C<cf::db_sync>.
1729
1730	=item cf::db_dirty
1731
1732	Marks the database as dirty, to be updated at a later time.
1733
1734	=item cf::db_sync
1735
1736	Immediately write the database to disk I<if it is dirty>.
1737		2355
1738	=cut	2356	=cut
1739		2357
1740	our $DB;	2358	our $DB;
1741		2359
1742	{	2360	sub db_init {
1743	my $path = cf::localdir . "/database.pst";	2361	unless ($DB) {
		2362	$DB = BDB::db_create $DB_ENV;
1744		2363
1745	sub db_load() {	2364	cf::sync_job {
1746	warn "loading database $path\n";#d# remove later	2365	eval {
1747	$DB = stat $path ? Storable::retrieve $path : { };	2366	$DB->set_flags (BDB::CHKSUM);
1748	}
1749		2367
1750	my $pid;	2368	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1751		2369	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1752	sub db_save() {	2370	cf::cleanup "db_open(db): $!" if $!;
1753	warn "saving database $path\n";#d# remove later	2371	};
1754	waitpid $pid, 0 if $pid;	2372	cf::cleanup "db_open(db): $@" if $@;
1755	if (0 == ($pid = fork)) {
1756	$DB->{_meta}{version} = 1;
1757	Storable::nstore $DB, "$path~";
1758	rename "$path~", $path;
1759	cf::_exit 0 if defined $pid;
1760	}	2373	};
1761	}
1762
1763	my $dirty;
1764
1765	sub db_sync() {
1766	db_save if $dirty;
1767	undef $dirty;
1768	}
1769
1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1771	db_sync;
1772	});	2374	}
		2375	}
1773		2376
1774	sub db_dirty() {
1775	$dirty = 1;
1776	$idle->start;
1777	}
1778
1779	sub db_get($;$) {	2377	sub db_get($$) {
1780	@_ >= 2	2378	my $key = "$_[0]/$_[1]";
1781	? $DB->{$_[0]}{$_[1]}
1782	: ($DB->{$_[0]} ||= { })
1783	}
1784		2379
		2380	cf::sync_job {
		2381	BDB::db_get $DB, undef, $key, my $data;
		2382
		2383	$! ? ()
		2384	: $data
		2385	}
		2386	}
		2387
1785	sub db_put($$;$) {	2388	sub db_put($$$) {
1786	if (@_ >= 3) {	2389	BDB::dbreq_pri 4;
1787	$DB->{$_[0]}{$_[1]} = $_[2];	2390	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1788	} else {	2391	}
1789	$DB->{$_[0]} = $_[1];
1790	}
1791	db_dirty;
1792	}
1793		2392
1794	cf::global->attach (	2393	=item cf::cache $id => [$paths...], $processversion => $process
1795	prio => 10000,	2394
1796	on_cleanup => sub {	2395	Generic caching function that returns the value of the resource $id,
1797	db_sync;	2396	caching and regenerating as required.
		2397
		2398	This function can block.
		2399
		2400	=cut
		2401
		2402	sub cache {
		2403	my ($id, $src, $processversion, $process) = @_;
		2404
		2405	my $meta =
		2406	join "\x00",
		2407	$processversion,
		2408	map {
		2409	aio_stat $_
		2410	and Carp::croak "$_: $!";
		2411
		2412	($_, (stat _)[7,9])
		2413	} @$src;
		2414
		2415	my $dbmeta = db_get cache => "$id/meta";
		2416	if ($dbmeta ne $meta) {
		2417	# changed, we may need to process
		2418
		2419	my @data;
		2420	my $md5;
		2421
		2422	for (0 .. $#$src) {
		2423	0 <= aio_load $src->[$_], $data[$_]
		2424	or Carp::croak "$src->[$_]: $!";
1798	},	2425	}
1799	);	2426
		2427	# if processing is expensive, check
		2428	# checksum first
		2429	if (1) {
		2430	$md5 =
		2431	join "\x00",
		2432	$processversion,
		2433	map {
		2434	Coro::cede;
		2435	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2436	} 0.. $#$src;
		2437
		2438
		2439	my $dbmd5 = db_get cache => "$id/md5";
		2440	if ($dbmd5 eq $md5) {
		2441	db_put cache => "$id/meta", $meta;
		2442
		2443	return db_get cache => "$id/data";
		2444	}
		2445	}
		2446
		2447	my $t1 = Time::HiRes::time;
		2448	my $data = $process->(\@data);
		2449	my $t2 = Time::HiRes::time;
		2450
		2451	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2452
		2453	db_put cache => "$id/data", $data;
		2454	db_put cache => "$id/md5" , $md5;
		2455	db_put cache => "$id/meta", $meta;
		2456
		2457	return $data;
		2458	}
		2459
		2460	db_get cache => "$id/data"
		2461	}
		2462
		2463	=item fork_call { }, $args
		2464
		2465	Executes the given code block with the given arguments in a seperate
		2466	process, returning the results. Everything must be serialisable with
		2467	Coro::Storable. May, of course, block. Note that the executed sub may
		2468	never block itself or use any form of Event handling.
		2469
		2470	=cut
		2471
		2472	sub fork_call(&@) {
		2473	my ($cb, @args) = @_;
		2474
		2475	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2476	# or die "socketpair: $!";
		2477	pipe my $fh1, my $fh2
		2478	or die "pipe: $!";
		2479
		2480	if (my $pid = fork) {
		2481	close $fh2;
		2482
		2483	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2484	$res = Coro::Storable::thaw $res;
		2485
		2486	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2487
		2488	die $$res unless "ARRAY" eq ref $res;
		2489
		2490	return wantarray ? @$res : $res->[-1];
		2491	} else {
		2492	reset_signals;
		2493	local $SIG{__WARN__};
		2494	local $SIG{__DIE__};
		2495	eval {
		2496	close $fh1;
		2497
		2498	my @res = eval { $cb->(@args) };
		2499	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2500	};
		2501
		2502	warn $@ if $@;
		2503	_exit 0;
		2504	}
1800	}	2505	}
1801		2506
1802	#############################################################################	2507	#############################################################################
1803	# the server's main()	2508	# the server's init and main functions
		2509
		2510	sub load_facedata($) {
		2511	my ($path) = @_;
		2512
		2513	warn "loading facedata from $path\n";
		2514
		2515	my $facedata;
		2516	0 < aio_load $path, $facedata
		2517	or die "$path: $!";
		2518
		2519	$facedata = Coro::Storable::thaw $facedata;
		2520
		2521	$facedata->{version} == 2
		2522	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2523
		2524	{
		2525	my $faces = $facedata->{faceinfo};
		2526
		2527	while (my ($face, $info) = each %$faces) {
		2528	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2529	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2530	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2531	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2532	Coro::cede;
		2533	}
		2534
		2535	while (my ($face, $info) = each %$faces) {
		2536	next unless $info->{smooth};
		2537	my $idx = cf::face::find $face
		2538	or next;
		2539	if (my $smooth = cf::face::find $info->{smooth}) {
		2540	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2541	} else {
		2542	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2543	}
		2544	Coro::cede;
		2545	}
		2546	}
		2547
		2548	{
		2549	my $anims = $facedata->{animinfo};
		2550
		2551	while (my ($anim, $info) = each %$anims) {
		2552	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2553	Coro::cede;
		2554	}
		2555
		2556	cf::anim::invalidate_all; # d'oh
		2557	}
		2558
		2559	1
		2560	}
		2561
		2562	sub reload_regions {
		2563	load_resource_file "$MAPDIR/regions"
		2564	or die "unable to load regions file\n";
		2565	}
		2566
		2567	sub reload_facedata {
		2568	load_facedata "$DATADIR/facedata"
		2569	or die "unable to load facedata\n";
		2570	}
		2571
		2572	sub reload_archetypes {
		2573	load_resource_file "$DATADIR/archetypes"
		2574	or die "unable to load archetypes\n";
		2575	}
		2576
		2577	sub reload_treasures {
		2578	load_resource_file "$DATADIR/treasures"
		2579	or die "unable to load treasurelists\n";
		2580	}
		2581
		2582	sub reload_resources {
		2583	warn "reloading resource files...\n";
		2584
		2585	reload_regions;
		2586	reload_facedata;
		2587	#reload_archetypes;#d#
		2588	reload_archetypes;
		2589	reload_treasures;
		2590
		2591	warn "finished reloading resource files\n";
		2592	}
		2593
		2594	sub init {
		2595	reload_resources;
		2596	}
1804		2597
1805	sub cfg_load {	2598	sub cfg_load {
1806	open my $fh, "<:utf8", cf::confdir . "/config"	2599	open my $fh, "<:utf8", "$CONFDIR/config"
1807	or return;	2600	or return;
1808		2601
1809	local $/;	2602	local $/;
1810	*CFG = YAML::Syck::Load <$fh>;	2603	*CFG = YAML::Syck::Load <$fh>;
		2604
		2605	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2606
		2607	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2608	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2609
		2610	if (exists $CFG{mlockall}) {
		2611	eval {
		2612	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2613	and die "WARNING: m(un)lockall failed: $!\n";
		2614	};
		2615	warn $@ if $@;
		2616	}
1811	}	2617	}
1812		2618
1813	sub main {	2619	sub main {
1814	# we must not ever block the main coroutine	2620	# we must not ever block the main coroutine
1815	local $Coro::idle = sub {	2621	local $Coro::idle = sub {
1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2622	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1817	(Coro::unblock_sub {	2623	(async {
1818	Event::one_event;	2624	Event::one_event;
1819	})->();	2625	})->prio (Coro::PRIO_MAX);
1820	};	2626	};
1821		2627
1822	cfg_load;	2628	cfg_load;
1823	db_load;	2629	db_init;
1824	load_extensions;	2630	load_extensions;
		2631
		2632	$TICK_WATCHER->start;
1825	Event::loop;	2633	Event::loop;
1826	}	2634	}
1827		2635
1828	#############################################################################	2636	#############################################################################
1829	# initialisation	2637	# initialisation and cleanup
1830		2638
1831	sub perl_reload() {	2639	# install some emergency cleanup handlers
		2640	BEGIN {
		2641	for my $signal (qw(INT HUP TERM)) {
		2642	Event->signal (
		2643	reentrant => 0,
		2644	data => WF_AUTOCANCEL,
		2645	signal => $signal,
		2646	prio => 0,
		2647	cb => sub {
		2648	cf::cleanup "SIG$signal";
		2649	},
		2650	);
		2651	}
		2652	}
		2653
		2654	sub emergency_save() {
		2655	my $freeze_guard = cf::freeze_mainloop;
		2656
		2657	warn "enter emergency perl save\n";
		2658
		2659	cf::sync_job {
		2660	# use a peculiar iteration method to avoid tripping on perl
		2661	# refcount bugs in for. also avoids problems with players
		2662	# and maps saved/destroyed asynchronously.
		2663	warn "begin emergency player save\n";
		2664	for my $login (keys %cf::PLAYER) {
		2665	my $pl = $cf::PLAYER{$login} or next;
		2666	$pl->valid or next;
		2667	$pl->save;
		2668	}
		2669	warn "end emergency player save\n";
		2670
		2671	warn "begin emergency map save\n";
		2672	for my $path (keys %cf::MAP) {
		2673	my $map = $cf::MAP{$path} or next;
		2674	$map->valid or next;
		2675	$map->save;
		2676	}
		2677	warn "end emergency map save\n";
		2678
		2679	warn "begin emergency database checkpoint\n";
		2680	BDB::db_env_txn_checkpoint $DB_ENV;
		2681	warn "end emergency database checkpoint\n";
		2682	};
		2683
		2684	warn "leave emergency perl save\n";
		2685	}
		2686
		2687	sub post_cleanup {
		2688	my ($make_core) = @_;
		2689
		2690	warn Carp::longmess "post_cleanup backtrace"
		2691	if $make_core;
		2692	}
		2693
		2694	sub do_reload_perl() {
1832	# can/must only be called in main	2695	# can/must only be called in main
1833	if ($Coro::current != $Coro::main) {	2696	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	2697	warn "can only reload from main coroutine";
1835	return;	2698	return;
1836	}	2699	}
1837		2700
1838	warn "reloading...";	2701	warn "reloading...";
1839		2702
1840	local $FREEZE = 1;	2703	warn "entering sync_job";
		2704
		2705	cf::sync_job {
		2706	cf::write_runtime; # external watchdog should not bark
1841	cf::emergency_save;	2707	cf::emergency_save;
		2708	cf::write_runtime; # external watchdog should not bark
1842		2709
1843	eval {	2710	warn "syncing database to disk";
		2711	BDB::db_env_txn_checkpoint $DB_ENV;
		2712
1844	# if anything goes wrong in here, we should simply crash as we already saved	2713	# if anything goes wrong in here, we should simply crash as we already saved
1845		2714
1846	# cancel all watchers	2715	warn "cancelling all WF_AUTOCANCEL watchers";
1847	for (Event::all_watchers) {	2716	for (Event::all_watchers) {
1848	$_->cancel if $_->data & WF_AUTOCANCEL;	2717	$_->cancel if $_->data & WF_AUTOCANCEL;
1849	}	2718	}
1850		2719
		2720	warn "flushing outstanding aio requests";
		2721	for (;;) {
		2722	BDB::flush;
		2723	IO::AIO::flush;
		2724	Coro::cede;
		2725	last unless IO::AIO::nreqs || BDB::nreqs;
		2726	warn "iterate...";
		2727	}
		2728
		2729	++$RELOAD;
		2730
1851	# cancel all extension coros	2731	warn "cancelling all extension coros";
1852	$_->cancel for values %EXT_CORO;	2732	$_->cancel for values %EXT_CORO;
1853	%EXT_CORO = ();	2733	%EXT_CORO = ();
1854		2734
1855	# unload all extensions	2735	warn "removing commands";
1856	for (@exts) {	2736	%COMMAND = ();
		2737
		2738	warn "removing ext commands";
		2739	%EXTCMD = ();
		2740
		2741	warn "unloading/nuking all extensions";
		2742	for my $pkg (@EXTS) {
1857	warn "unloading <$_>";	2743	warn "... unloading $pkg";
1858	unload_extension $_;	2744
		2745	if (my $cb = $pkg->can ("unload")) {
		2746	eval {
		2747	$cb->($pkg);
		2748	1
		2749	} or warn "$pkg unloaded, but with errors: $@";
1859	}	2750	}
1860		2751
		2752	warn "... nuking $pkg";
		2753	Symbol::delete_package $pkg;
		2754	}
		2755
1861	# unload all modules loaded from $LIBDIR	2756	warn "unloading all perl modules loaded from $LIBDIR";
1862	while (my ($k, $v) = each %INC) {	2757	while (my ($k, $v) = each %INC) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2758	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1864		2759
1865	warn "removing <$k>";	2760	warn "... unloading $k";
1866	delete $INC{$k};	2761	delete $INC{$k};
1867		2762
1868	$k =~ s/\.pm$//;	2763	$k =~ s/\.pm$//;
1869	$k =~ s/\//::/g;	2764	$k =~ s/\//::/g;
1870		2765
…		…
1873	}	2768	}
1874		2769
1875	Symbol::delete_package $k;	2770	Symbol::delete_package $k;
1876	}	2771	}
1877		2772
1878	# sync database to disk
1879	cf::db_sync;
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible	2773	warn "getting rid of safe::, as good as possible";
1883	Symbol::delete_package "safe::$_"	2774	Symbol::delete_package "safe::$_"
1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2775	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1885		2776
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"	2777	warn "unloading cf.pm \"a bit\"";
1890	delete $INC{"cf.pm"};	2778	delete $INC{"cf.pm"};
		2779	delete $INC{"cf/pod.pm"};
1891		2780
1892	# don't, removes xs symbols, too,	2781	# don't, removes xs symbols, too,
1893	# and global variables created in xs	2782	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;	2783	#Symbol::delete_package __PACKAGE__;
1895		2784
1896	# reload cf.pm	2785	warn "unload completed, starting to reload now";
		2786
1897	warn "reloading cf.pm";	2787	warn "reloading cf.pm";
1898	require cf;	2788	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2789	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900		2790
1901	# load config and database again	2791	warn "loading config and database again";
1902	cf::cfg_load;	2792	cf::cfg_load;
1903	cf::db_load;
1904		2793
1905	# load extensions
1906	warn "load extensions";	2794	warn "loading extensions";
1907	cf::load_extensions;	2795	cf::load_extensions;
1908		2796
1909	# reattach attachments to objects	2797	warn "reattaching attachments to objects/players";
1910	warn "reattach";	2798	_global_reattach; # objects, sockets
1911	_global_reattach;	2799	warn "reattaching attachments to maps";
1912	};	2800	reattach $_ for values %MAP;
		2801	warn "reattaching attachments to players";
		2802	reattach $_ for values %PLAYER;
1913		2803
1914	if ($@) {	2804	warn "leaving sync_job";
		2805
		2806	1
		2807	} or do {
1915	warn $@;	2808	warn $@;
1916	warn "error while reloading, exiting.";	2809	warn "error while reloading, exiting.";
1917	exit 1;	2810	exit 1;
1918	}	2811	};
1919		2812
1920	warn "reloaded successfully";	2813	warn "reloaded";
1921	};	2814	};
1922		2815
1923	#############################################################################	2816	our $RELOAD_WATCHER; # used only during reload
1924		2817
1925	unless ($LINK_MAP) {	2818	sub reload_perl() {
1926	$LINK_MAP = cf::map::new;	2819	# doing reload synchronously and two reloads happen back-to-back,
		2820	# coro crashes during coro_state_free->destroy here.
1927		2821
1928	$LINK_MAP->width (41);	2822	$RELOAD_WATCHER ||= Event->timer (
1929	$LINK_MAP->height (41);	2823	reentrant => 0,
1930	$LINK_MAP->alloc;
1931	$LINK_MAP->path ("{link}");
1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1934
1935	# dirty hack because... archetypes are not yet loaded
1936	Event->timer (
1937	after => 2,	2824	after => 0,
		2825	data => WF_AUTOCANCEL,
1938	cb => sub {	2826	cb => sub {
1939	$_[0]->w->cancel;	2827	do_reload_perl;
1940		2828	undef $RELOAD_WATCHER;
1941	# provide some exits "home"
1942	my $exit = cf::object::new "exit";
1943
1944	$exit->slaying ($EMERGENCY_POSITION->[0]);
1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1947
1948	$LINK_MAP->insert ($exit->clone, 19, 19);
1949	$LINK_MAP->insert ($exit->clone, 19, 20);
1950	$LINK_MAP->insert ($exit->clone, 19, 21);
1951	$LINK_MAP->insert ($exit->clone, 20, 19);
1952	$LINK_MAP->insert ($exit->clone, 20, 21);
1953	$LINK_MAP->insert ($exit->clone, 21, 19);
1954	$LINK_MAP->insert ($exit->clone, 21, 20);
1955	$LINK_MAP->insert ($exit->clone, 21, 21);
1956
1957	$exit->destroy;
1958	});	2829	},
1959		2830	);
1960	$LINK_MAP->{deny_save} = 1;
1961	$LINK_MAP->{deny_reset} = 1;
1962
1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1964	}	2831	}
1965		2832
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {	2833	register_command "reload" => sub {
1969	my ($who, $arg) = @_;	2834	my ($who, $arg) = @_;
1970		2835
1971	if ($who->flag (FLAG_WIZ)) {	2836	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end of reload.");	2837	$who->message ("reloading server.");
		2838	async { reload_perl };
1975	}	2839	}
1976	};	2840	};
1977		2841
1978	unshift @INC, $LIBDIR;	2842	unshift @INC, $LIBDIR;
1979		2843
		2844	my $bug_warning = 0;
		2845
		2846	our @WAIT_FOR_TICK;
		2847	our @WAIT_FOR_TICK_BEGIN;
		2848
		2849	sub wait_for_tick {
		2850	return unless $TICK_WATCHER->is_active;
		2851	return if $Coro::current == $Coro::main;
		2852
		2853	my $signal = new Coro::Signal;
		2854	push @WAIT_FOR_TICK, $signal;
		2855	$signal->wait;
		2856	}
		2857
		2858	sub wait_for_tick_begin {
		2859	return unless $TICK_WATCHER->is_active;
		2860	return if $Coro::current == $Coro::main;
		2861
		2862	my $signal = new Coro::Signal;
		2863	push @WAIT_FOR_TICK_BEGIN, $signal;
		2864	$signal->wait;
		2865	}
		2866
		2867	my $min = 1e6;#d#
		2868	my $avg = 10;
1980	$TICK_WATCHER = Event->timer (	2869	$TICK_WATCHER = Event->timer (
1981	reentrant => 0,	2870	reentrant => 0,
		2871	parked => 1,
1982	prio => 0,	2872	prio => 0,
1983	at => $NEXT_TICK || $TICK,	2873	at => $NEXT_TICK || $TICK,
1984	data => WF_AUTOCANCEL,	2874	data => WF_AUTOCANCEL,
1985	cb => sub {	2875	cb => sub {
1986	unless ($FREEZE) {	2876	if ($Coro::current != $Coro::main) {
		2877	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2878	unless ++$bug_warning > 10;
		2879	return;
		2880	}
		2881
		2882	$NOW = $tick_start = Event::time;
		2883
1987	cf::server_tick; # one server iteration	2884	cf::server_tick; # one server iteration
1988	$RUNTIME += $TICK;	2885
		2886	0 && sync_job {#d#
		2887	for(1..10) {
		2888	my $t = Event::time;
		2889	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2890	or die;
		2891
		2892	$map->width (50);
		2893	$map->height (50);
		2894	$map->alloc;
		2895	$map->_load_objects ("/tmp/x.map", 1);
		2896	my $t = Event::time - $t;
		2897
		2898	#next unless $t < 0.0013;#d#
		2899	if ($t < $min) {
		2900	$min = $t;
		2901	}
		2902	$avg = $avg * 0.99 + $t * 0.01;
		2903	}
		2904	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2905	exit 0;
		2906	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1989	}	2907	};
1990		2908
		2909	$RUNTIME += $TICK;
1991	$NEXT_TICK += $TICK;	2910	$NEXT_TICK += $TICK;
1992		2911
		2912	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2913	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2914	Coro::async_pool {
		2915	write_runtime
		2916	or warn "ERROR: unable to write runtime file: $!";
		2917	};
		2918	}
		2919
		2920	# my $AFTER = Event::time;
		2921	# warn $AFTER - $NOW;#d#
		2922
		2923	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2924	$sig->send;
		2925	}
		2926	while (my $sig = shift @WAIT_FOR_TICK) {
		2927	$sig->send;
		2928	}
		2929
		2930	$NOW = Event::time;
		2931
1993	# if we are delayed by four ticks or more, skip them all	2932	# if we are delayed by four ticks or more, skip them all
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2933	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1995		2934
1996	$TICK_WATCHER->at ($NEXT_TICK);	2935	$TICK_WATCHER->at ($NEXT_TICK);
1997	$TICK_WATCHER->start;	2936	$TICK_WATCHER->start;
		2937
		2938	$LOAD = ($NOW - $tick_start) / $TICK;
		2939	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2940
		2941	_post_tick;
		2942
		2943
1998	},	2944	},
1999	);	2945	);
2000		2946
		2947	{
2001	IO::AIO::max_poll_time $TICK * 0.2;	2948	BDB::max_poll_time $TICK * 0.1;
2002		2949	$BDB_POLL_WATCHER = Event->io (
2003	Event->io (	2950	reentrant => 0,
2004	fd => IO::AIO::poll_fileno,	2951	fd => BDB::poll_fileno,
2005	poll => 'r',	2952	poll => 'r',
2006	prio => 5,	2953	prio => 0,
2007	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,
2009	);
2010
2011	Event->timer (
2012	data => WF_AUTOCANCEL,	2954	data => WF_AUTOCANCEL,
2013	after => 0,	2955	cb => \&BDB::poll_cb,
2014	interval => 10,	2956	);
2015	cb => sub {	2957	BDB::min_parallel 8;
2016	(Coro::unblock_sub {	2958
2017	write_runtime	2959	BDB::set_sync_prepare {
2018	or warn "ERROR: unable to write runtime file: $!";	2960	my $status;
		2961	my $current = $Coro::current;
		2962	(
		2963	sub {
		2964	$status = $!;
		2965	$current->ready; undef $current;
		2966	},
		2967	sub {
		2968	Coro::schedule while defined $current;
		2969	$! = $status;
		2970	},
		2971	)
		2972	};
		2973
		2974	unless ($DB_ENV) {
		2975	$DB_ENV = BDB::db_env_create;
		2976
		2977	cf::sync_job {
		2978	eval {
		2979	BDB::db_env_open
		2980	$DB_ENV,
		2981	$BDBDIR,
		2982	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2983	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2984	0666;
		2985
		2986	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2987
		2988	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2989	$DB_ENV->set_lk_detect;
		2990	};
		2991
		2992	cf::cleanup "db_env_open(db): $@" if $@;
2019	})->();	2993	};
2020	},	2994	}
2021	);	2995	}
		2996
		2997	{
		2998	IO::AIO::min_parallel 8;
		2999
		3000	undef $Coro::AIO::WATCHER;
		3001	IO::AIO::max_poll_time $TICK * 0.1;
		3002	$AIO_POLL_WATCHER = Event->io (
		3003	reentrant => 0,
		3004	data => WF_AUTOCANCEL,
		3005	fd => IO::AIO::poll_fileno,
		3006	poll => 'r',
		3007	prio => 6,
		3008	cb => \&IO::AIO::poll_cb,
		3009	);
		3010	}
		3011
		3012	my $_log_backtrace;
		3013
		3014	sub _log_backtrace {
		3015	my ($msg, @addr) = @_;
		3016
		3017	$msg =~ s/\n//;
		3018
		3019	# limit the # of concurrent backtraces
		3020	if ($_log_backtrace < 2) {
		3021	++$_log_backtrace;
		3022	async {
		3023	my @bt = fork_call {
		3024	@addr = map { sprintf "%x", $_ } @addr;
		3025	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3026	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3027	or die "addr2line: $!";
		3028
		3029	my @funcs;
		3030	my @res = <$fh>;
		3031	chomp for @res;
		3032	while (@res) {
		3033	my ($func, $line) = splice @res, 0, 2, ();
		3034	push @funcs, "[$func] $line";
		3035	}
		3036
		3037	@funcs
		3038	};
		3039
		3040	LOG llevInfo, "[ABT] $msg\n";
		3041	LOG llevInfo, "[ABT] $_\n" for @bt;
		3042	--$_log_backtrace;
		3043	};
		3044	} else {
		3045	LOG llevInfo, "[ABT] $msg\n";
		3046	LOG llevInfo, "[ABT] [suppressed]\n";
		3047	}
		3048	}
		3049
		3050	# load additional modules
		3051	use cf::pod;
		3052
		3053	END { cf::emergency_save }
2022		3054
2023	1	3055	1
2024		3056

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines