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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 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 ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	324	always able to handle events or runnable, as crossfire+ is only partly
…		…
198		333
199	sub sync_job(&) {	334	sub sync_job(&) {
200	my ($job) = @_;	335	my ($job) = @_;
201		336
202	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
203	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
205		342
206	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	344	# (but this is cancel-safe)
208	local $FREEZE = 1;	345	my $freeze_guard = freeze_mainloop;
209		346
210	my $busy = 1;	347	my $busy = 1;
211	my @res;	348	my @res;
212		349
213	(Coro::async {	350	(async {
214	@res = eval { $job->() };	351	@res = eval { $job->() };
215	warn $@ if $@;	352	warn $@ if $@;
216	undef $busy;	353	undef $busy;
217	})->prio (Coro::PRIO_MAX);	354	})->prio (Coro::PRIO_MAX);
218		355
219	while ($busy) {	356	while ($busy) {
220	Coro::cede_notself;	357	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	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
223		366
224	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
225	} else {	368	} else {
226	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
227		370
228	$job->()	371	$job->()
229	}	372	}
230	}	373	}
231		374
232	=item $coro = cf::coro { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
233		376
234	Creates and returns a new coro. This coro is automcatially being canceled	377	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	378	extension calling this is being unloaded.
236		379
237	=cut	380	=cut
238		381
239	sub coro(&) {	382	sub async_ext(&) {
240	my $cb = shift;	383	my $cb = shift;
241		384
242	my $coro; $coro = async {	385	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		386
249	$coro->on_destroy (sub {	387	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	388	delete $EXT_CORO{$coro+0};
251	});	389	});
252	$EXT_CORO{$coro+0} = $coro;	390	$EXT_CORO{$coro+0} = $coro;
253		391
254	$coro	392	$coro
255	}	393	}
256		394
257	sub write_runtime {	395	sub write_runtime {
258	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";
259		404
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	406	or return;
262		407
		408	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	413	and return;
266		414
		415	# always fsync - this file is important
267	aio_fsync $fh	416	aio_fsync $fh
268	and return;	417	and return;
269		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
270	close $fh	422	close $fh
271	or return;	423	or return;
272		424
273	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
274	and return;	426	and return;
275		427
		428	warn "runtime file written.\n";
		429
276	1	430	1
277	}	431	}
278		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
279	=back	444	=back
280		445
281	=cut	446	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392		447
393	#############################################################################	448	#############################################################################
394		449
395	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
396		451
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	578	our @CB_MAP = ();
524		579
525	my %attachment;	580	my %attachment;
526		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
527	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
529		590
530	use sort 'stable';	591	use sort 'stable';
531		592
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
566		627
567	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		632
572	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	634	my $pkg = shift @arg;
574		635
575	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
616	if (ref $_[0]) {	677	if (ref $_[0]) {
617	_object_attach @_;	678	_object_attach @_;
618	} else {	679	} else {
619	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
620	}	681	}
		682	_recalc_want;
621	};	683	};
622		684
623	# all those should be optimised	685	# all those should be optimised
624	sub cf::attachable::detach {	686	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
629	reattach ($obj);	691	reattach ($obj);
630	} else {	692	} else {
631	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
632	}	694	}
		695	_recalc_want;
633	};	696	};
634		697
635	sub cf::attachable::attached {	698	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
637		700
…		…
702	# object support	765	# object support
703		766
704	sub reattach {	767	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		772
708	my $registry = $obj->registry;	773	my $registry = $obj->registry;
709		774
710	@$registry = ();	775	@$registry = ();
711		776
…		…
758	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
759		824
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	829	close $fh;
765		830
766	if (@$objs) {	831	if (@$objs) {
767	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) {
768	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	837	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
774	}	839	}
775	} else {	840	} else {
776	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
804	or return;	869	or return;
805		870
806	unless (aio_stat "$filename.pst") {	871	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	872	(aio_load "$filename.pst", $av) >= 0
808	or return;	873	or return;
809	$av = eval { (Storable::thaw <$av>)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
810	}	875	}
811		876
		877	warn sprintf "loading %s (%d)\n",
		878	$filename, length $data, scalar @{$av || []};
812	return ($data, $av);	879	return ($data, $av);
813	}	880	}
814		881
815	#############################################################################	882	#############################################################################
816	# command handling &c	883	# command handling &c
…		…
841	=cut	908	=cut
842		909
843	sub register_extcmd {	910	sub register_extcmd {
844	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
845		912
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
850	}	914	}
851		915
852	cf::player->attach (	916	cf::player->attach (
853	on_command => sub {	917	on_command => sub {
854	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
867		931
868	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
869		933
870	if (ref $msg) {	934	if (ref $msg) {
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
873	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
874	}	938	}
875	}	939	}
876	} else {	940	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
879		943
880	cf::override;	944	cf::override;
881	},	945	},
882	);	946	);
883		947
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	948	sub load_extension {
891	my ($path) = @_;	949	my ($path) = @_;
892		950
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
894	my $base = $1;	952	my $base = $1;
895	my $pkg = $1;	953	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
898		956
899	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
900		958
901	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
902	or die "$path: $!";	960	or die "$path: $!";
903		961
904	my $source =	962	my $source =
905	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
908	. "\n};\n1";	966	. "\n};\n1";
909		967
910	eval $source	968	unless (eval $source) {
911	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
912	: "extension disabled.\n";	970	: "extension disabled.\n";
913		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
914	push @exts, $pkg;	972	warn $@;
915	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
916		974	exit 1;
917	# no strict 'refs';	975	}
918	# @{"$pkg\::ISA"} = ext::;	976	die $@;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }	977	}
933		978
934	# remove commands	979	push @EXTS, $pkg;
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}
943	}
944
945	# remove extcmds
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}	980	}
959		981
960	sub load_extensions {	982	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	984	next unless -r $ext;
…		…
966	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
967	}	989	}
968	}	990	}
969		991
970	#############################################################################	992	#############################################################################
971	# load/save/clean perl data associated with a map
972
973	*cf::mapsupport::on_clean = sub {
974	my ($map) = @_;
975
976	my $path = $map->tmpname;
977	defined $path or return;
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}
990
991	# TODO: compatibility cruft, remove when no longer needed
992	cf::player->attach (
993	on_load => sub {
994	my ($pl, $path) = @_;
995
996	for my $o (all_objects $pl->ob) {
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
998	$o->set_ob_key_value ("_perl_data");
999
1000	%$o = %{ Storable::thaw pack "H*", $value };
1001	}
1002	}
1003	},
1004	);
1005
1006	#############################################################################
1007		993
1008	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1009		995
1010	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1011		997
		998	=cut
		999
		1000	package cf::player;
		1001
		1002	use Coro::AIO;
		1003
1012	=head3 cf::player	1004	=head3 cf::player
1013		1005
1014	=over 4	1006	=over 4
1015		1007
1016	=item cf::player::exists $login	1008	=item cf::player::find $login
1017		1009
1018	Returns true when the given account exists.	1010	Returns the given player object, loading it if necessary (might block).
1019		1011
1020	=cut	1012	=cut
1021		1013
1022	sub cf::player::exists($) {	1014	sub playerdir($) {
1023	cf::player::find $_[0]	1015	"$PLAYERDIR/"
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1025	}	1017	}
1026		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
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1028		1191
1029	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1030		1193
1031	=cut	1194	=cut
1032		1195
1033	sub cf::player::ext_reply($$$%) {	1196	sub ext_reply($$%) {
1034	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1035		1198
1036	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1037		1200
1038	$self->send ("ext " . to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
		1202	}
		1203
		1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		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
1039	}	1243	}
1040		1244
1041	=back	1245	=back
1042
1043		1246
1044	=head3 cf::map	1247	=head3 cf::map
1045		1248
1046	=over 4	1249	=over 4
1047		1250
…		…
1050	package cf::map;	1253	package cf::map;
1051		1254
1052	use Fcntl;	1255	use Fcntl;
1053	use Coro::AIO;	1256	use Coro::AIO;
1054		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1055	our $MAX_RESET = 7200;	1262	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1263	our $DEFAULT_RESET = 3000;
1057		1264
1058	sub generate_random_map {	1265	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1268	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$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},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(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"
1075	}	1408	}
1076		1409
1077	# and all this just because we cannot iterate over	1410	# and all this just because we cannot iterate over
1078	# all maps in C++...	1411	# all maps in C++...
1079	sub change_all_map_light {	1412	sub change_all_map_light {
1080	my ($change) = @_;	1413	my ($change) = @_;
1081		1414
1082	$_->change_map_light ($change) for values %cf::MAP;	1415	$_->change_map_light ($change)
		1416	for grep $_->outdoor, values %cf::MAP;
1083	}	1417	}
1084		1418
		1419	sub decay_objects {
		1420	my ($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
1085	sub try_load_header($) {	1435	sub load_header_from($) {
1086	my ($path) = @_;	1436	my ($self, $path) = @_;
1087		1437
1088	utf8::encode $path;	1438	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1439	#aio_open $path, O_RDONLY, 0
		1440	# or return;
		1441
		1442	$self->_load_header ($path)
1090	or return;	1443	or return;
1091		1444
1092	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
1093	or return;	1488	or return;
		1489	$self->prepare_orig;
		1490	}
1094		1491
1095	$map->load_header ($path)	1492	$self->{deny_reset} = 1
1096	or return;	1493	if $self->no_reset;
1097		1494
1098	$map->{load_path} = $path;	1495	$self->default_region (cf::region::find_by_path $self->{path})
		1496	unless $self->default_region;
1099		1497
1100	$map	1498	1
1101	}	1499	}
1102		1500
		1501	sub find;
1103	sub find_map {	1502	sub find {
1104	my ($path, $origin) = @_;	1503	my ($path, $origin) = @_;
1105		1504
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1505	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1506
		1507	cf::lock_wait "map_find:$path";
		1508
1111	$cf::MAP{$key} || do {	1509	$cf::MAP{$path} || do {
1112	# do it the slow way	1510	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1511	my $map = new_from_path cf::map $path
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	1512	or return;
1127		1513
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	1514	$map->{last_save} = $cf::RUNTIME;
1139		1515
1140	if ($map->should_reset) {	1516	$map->load_header
		1517	or return;
		1518
		1519	if ($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;
1141	$map->reset;	1522	$map->reset;
1142	$map = find_map $path;	1523	undef $guard;
		1524	return find $path;
1143	}	1525	}
1144		1526
1145	$cf::MAP{$key} = $map	1527	$cf::MAP{$path} = $map
1146	}	1528	}
1147	}	1529	}
		1530
		1531	sub pre_load { }
		1532	sub post_load { }
1148		1533
1149	sub load {	1534	sub load {
1150	my ($self) = @_;	1535	my ($self) = @_;
1151		1536
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1537	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		1538
1156	my $path = $self->{path};	1539	my $path = $self->{path};
1157		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
1158	$self->alloc;	1548	$self->alloc;
		1549
		1550	$self->pre_load;
		1551	Coro::cede;
		1552
1159	$self->load_objects ($self->{load_path}, 1)	1553	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1554	or return;
1161		1555
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1557	if delete $self->{load_original};
1164		1558
1165	if (my $uniq = $path->uniq_path) {	1559	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1560	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1561	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1562	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1563	$self->_load_objects ($uniq, 0);
1170	}	1564	}
1171	}	1565	}
1172		1566
		1567	Coro::cede;
1173	# now do the right thing for maps	1568	# now do the right thing for maps
1174	$self->link_multipart_objects;	1569	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1570	$self->difficulty ($self->estimate_difficulty)
1185	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;
1186	$self->activate;	1581	$self->activate;
1187	}	1582	}
1188		1583
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1584	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1585	}
1191		1586
1192	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	$neigh->load;
		1623	}
		1624	}
		1625
		1626	sub find_sync {
1193	my ($path, $origin) = @_;	1627	my ($path, $origin) = @_;
1194		1628
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1629	cf::sync_job { find $path, $origin }
		1630	}
1196		1631
1197	cf::sync_job {	1632	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1633	my ($map) = @_;
1199	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;
1200	$map->load;	1656	$map->load;
1201	$map	1657
		1658	delete $MAP_PREFETCH{$path};
		1659	}
		1660	}
		1661	undef $MAP_PREFETCHER;
1202	}	1662	};
		1663	$MAP_PREFETCHER->prio (6);
		1664
		1665	()
1203	}	1666	}
1204		1667
1205	sub save {	1668	sub save {
1206	my ($self) = @_;	1669	my ($self) = @_;
1207		1670
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1671	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1672
1211	$self->{last_save} = $cf::RUNTIME;	1673	$self->{last_save} = $cf::RUNTIME;
1212		1674
1213	return unless $self->dirty;	1675	return unless $self->dirty;
1214		1676
		1677	my $save = $self->save_path; utf8::encode $save;
		1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1679
1215	$self->{load_path} = $save;	1680	$self->{load_path} = $save;
1216		1681
1217	return if $self->{deny_save};	1682	return if $self->{deny_save};
1218		1683
		1684	local $self->{last_access} = $self->last_access;#d#
		1685
		1686	cf::async {
		1687	$_->contr->save for $self->players;
		1688	};
		1689
1219	if ($uniq) {	1690	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1691	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1692	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1693	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1694	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1695	}
1225	}	1696	}
1226		1697
1227	sub swap_out {	1698	sub swap_out {
1228	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;
1229		1705
1230	return if $self->players;	1706	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1707	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1708	return if $self->{deny_save};
1233		1709
1234	$self->save;
1235	$self->clear;	1710	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1711	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1712	}
1238		1713
1239	sub reset_at {	1714	sub reset_at {
1240	my ($self) = @_;	1715	my ($self) = @_;
1241		1716
1242	# TODO: safety, remove and allow resettable per-player maps	1717	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	1718	return 1e99 if $self->{deny_reset};
1245		1719
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1720	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1721	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1722
1250	$time + $to	1723	$time + $to
1251	}	1724	}
1252		1725
1253	sub should_reset {	1726	sub should_reset {
1254	my ($self) = @_;	1727	my ($self) = @_;
1255		1728
1256	$self->reset_at <= $cf::RUNTIME	1729	$self->reset_at <= $cf::RUNTIME
1257	}	1730	}
1258		1731
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub reset {	1732	sub reset {
1268	my ($self) = @_;	1733	my ($self) = @_;
1269		1734
		1735	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1736
1270	return if $self->players;	1737	return if $self->players;
1271	return if $self->{path}{user_rel};#d#
1272		1738
1273	warn "resetting map ", $self->path;#d#	1739	warn "resetting map ", $self->path;
		1740
		1741	$self->in_memory (cf::MAP_SWAPPED);
		1742
		1743	# need to save uniques path
		1744	unless ($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	}
1274		1750
1275	delete $cf::MAP{$self->path};	1751	delete $cf::MAP{$self->path};
		1752
		1753	$self->clear;
1276		1754
1277	$_->clear_links_to ($self) for values %cf::MAP;	1755	$_->clear_links_to ($self) for values %cf::MAP;
1278		1756
1279	$self->unlink_save;	1757	$self->unlink_save;
1280	$self->destroy;	1758	$self->destroy;
1281	}	1759	}
1282		1760
1283	sub customise_for {	1761	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		1762
1286	if ($map->per_player) {	1763	sub nuke {
1287	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() {
1288	}	1789	[
1289		1790	map {
1290	$map	1791	utf8::decode $_;
		1792	!/\.(?:pst|meta)$/ && /^$PATH_SEP/o
		1793	? normalise $_
		1794	: ()
		1795	} @{ aio_readdir $TMPDIR or [] }
		1796	]
1291	}	1797	}
1292		1798
1293	sub emergency_save {	1799	=item cf::map::unique_maps
1294	local $cf::FREEZE = 1;
1295		1800
1296	warn "enter emergency map save\n";	1801	Returns an arrayref of paths of all shared maps that have
		1802	instantiated unique items. May block.
1297		1803
1298	cf::sync_job {	1804	=cut
1299	warn "begin emergency map save\n";
1300	$_->save for values %cf::MAP;
1301	};
1302		1805
1303	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	]
1304	}	1815	}
1305		1816
1306	package cf;	1817	package cf;
1307		1818
1308	=back	1819	=back
1309		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
1310		1847
1311	=head3 cf::object::player	1848	=head3 cf::object::player
1312		1849
1313	=over 4	1850	=over 4
1314		1851
…		…
1350	(ref $cf::CFG{"may_$access"}	1887	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1888	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	1889	: $cf::CFG{"may_$access"})
1353	}	1890	}
1354		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	$LINK_MAP
		1920	}
		1921
1355	sub cf::object::player::enter_link {	1922	sub cf::object::player::enter_link {
1356	my ($self) = @_;	1923	my ($self) = @_;
1357		1924
1358	return if $self->map == $LINK_MAP;
1359
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;
1362
1363	$self->enter_map ($LINK_MAP, 20, 20);
1364	$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);
1365	}	1933	}
1366		1934
1367	sub cf::object::player::leave_link {	1935	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	1936	my ($self, $map, $x, $y) = @_;
1369		1937
		1938	return unless $self->contr->active;
		1939
1370	my $link_pos = delete $self->{_link_pos};	1940	my $link_pos = delete $self->{_link_pos};
1371		1941
1372	unless ($map) {	1942	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	1943	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	1944	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	1945	$map = cf::map::find $map;
1378		1946
1379	unless ($map) {	1947	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	1948	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	1949	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	1950	or die "FATAL: cannot load emergency map\n";
1383	}	1951	}
1384	}	1952	}
1385		1953
1386	($x, $y) = (-1, -1)	1954	($x, $y) = (-1, -1)
…		…
1389	# use -1 or undef as default coordinates, not 0, 0	1957	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	1958	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	1959	if $x <=0 && $y <= 0;
1392		1960
1393	$map->load;	1961	$map->load;
		1962	$map->load_diag;
1394		1963
		1964	return unless $self->contr->active;
1395	$self->activate_recursive;	1965	$self->activate_recursive;
		1966
		1967	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1396	$self->enter_map ($map, $x, $y);	1968	$self->enter_map ($map, $x, $y);
1397	}	1969	}
1398		1970
1399	=item $player_object->goto_map ($map, $x, $y)	1971	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1400		1972
1401	=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.
1402		1977
		1978	=cut
		1979
		1980	our $GOTOGEN;
		1981
1403	sub cf::object::player::goto_map {	1982	sub cf::object::player::goto {
1404	my ($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;
1405		1987
1406	$self->enter_link;	1988	$self->enter_link;
1407		1989
1408	(Coro::async {	1990	(async {
1409	$path = new cf::path $path;	1991	my $map = eval {
1410
1411	my $map = cf::map::find_map $path->as_string;	1992	my $map = cf::map::find $path;
		1993
		1994	if ($map) {
1412	$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	}
1413		2000
1414	warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	2001	$map
		2002	};
1416		2003
		2004	if ($@) {
		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};
1417	$self->leave_link ($map, $x, $y);	2011	$self->leave_link ($map, $x, $y);
		2012	}
1418	})->prio (1);	2013	})->prio (1);
1419	}	2014	}
1420		2015
1421	=item $player_object->enter_exit ($exit_object)	2016	=item $player_object->enter_exit ($exit_object)
1422		2017
…		…
1424		2019
1425	sub parse_random_map_params {	2020	sub parse_random_map_params {
1426	my ($spec) = @_;	2021	my ($spec) = @_;
1427		2022
1428	my $rmp = { # defaults	2023	my $rmp = { # defaults
1429	xsize => 10,	2024	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	2025	ysize => (cf::rndm 15, 40),
		2026	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2027	#layout => string,
1431	};	2028	};
1432		2029
1433	for (split /\n/, $spec) {	2030	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	2031	my ($k, $v) = split /\s+/, $_, 2;
1435		2032
…		…
1439	$rmp	2036	$rmp
1440	}	2037	}
1441		2038
1442	sub prepare_random_map {	2039	sub prepare_random_map {
1443	my ($exit) = @_;	2040	my ($exit) = @_;
		2041
		2042	my $guard = cf::lock_acquire "exit_prepare:$exit";
1444		2043
1445	# all this does is basically replace the /! path by	2044	# all this does is basically replace the /! path by
1446	# a new random map path (?random/...) with a seed	2045	# a new random map path (?random/...) with a seed
1447	# that depends on the exit object	2046	# that depends on the exit object
1448		2047
1449	my $rmp = parse_random_map_params $exit->msg;	2048	my $rmp = parse_random_map_params $exit->msg;
1450		2049
1451	if ($exit->map) {	2050	if ($exit->map) {
1452	$rmp->{region} = $exit->map->region_name;	2051	$rmp->{region} = $exit->region->name;
1453	$rmp->{origin_map} = $exit->map->path;	2052	$rmp->{origin_map} = $exit->map->path;
1454	$rmp->{origin_x} = $exit->x;	2053	$rmp->{origin_x} = $exit->x;
1455	$rmp->{origin_y} = $exit->y;	2054	$rmp->{origin_y} = $exit->y;
1456	}	2055	}
1457		2056
1458	$rmp->{random_seed} ||= $exit->random_seed;	2057	$rmp->{random_seed} ||= $exit->random_seed;
1459		2058
1460	my $data = cf::to_json $rmp;	2059	my $data = cf::to_json $rmp;
1461	my $md5 = Digest::MD5::md5_hex $data;	2060	my $md5 = Digest::MD5::md5_hex $data;
		2061	my $meta = "$RANDOMDIR/$md5.meta";
1462		2062
1463	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) {
1464	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;
1465		2067
1466	$exit->slaying ("?random/$md5");	2068	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	2069	$exit->msg (undef);
1468	}	2070	}
1469	}	2071	}
…		…
1471	sub cf::object::player::enter_exit {	2073	sub cf::object::player::enter_exit {
1472	my ($self, $exit) = @_;	2074	my ($self, $exit) = @_;
1473		2075
1474	return unless $self->type == cf::PLAYER;	2076	return unless $self->type == cf::PLAYER;
1475		2077
		2078	if ($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
1476	$self->enter_link;	2089	$self->enter_link;
1477		2090
1478	(Coro::async {	2091	(async {
		2092	$self->deactivate_recursive; # just to be sure
1479	unless (eval {	2093	unless (eval {
1480		2094	$self->goto ($slaying, $hp, $sp);
1481	prepare_random_map $exit
1482	if $exit->slaying eq "/!";
1483
1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1486		2095
1487	1;	2096	1;
1488	}) {	2097	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	2098	$self->message ("Something went wrong deep within the crossfire server. "
1490	. "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. "
1491	. "Please report this to the dungeon master",	2100	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	2101	cf::NDI_UNIQUE | cf::NDI_RED);
1493		2102
1494	warn "ERROR in enter_exit: $@";	2103	warn "ERROR in enter_exit: $@";
1495	$self->leave_link;	2104	$self->leave_link;
1496	}	2105	}
1497	})->prio (1);	2106	})->prio (1);
…		…
1510		2119
1511	sub cf::client::send_drawinfo {	2120	sub cf::client::send_drawinfo {
1512	my ($self, $text, $flags) = @_;	2121	my ($self, $text, $flags) = @_;
1513		2122
1514	utf8::encode $text;	2123	utf8::encode $text;
1515	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2124	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1516	}	2125	}
1517		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	}
1518		2139
1519	=item $success = $client->query ($flags, "text", \&cb)	2140	=item $success = $client->query ($flags, "text", \&cb)
1520		2141
1521	Queues a query to the client, calling the given callback with	2142	Queues a query to the client, calling the given callback with
1522	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>,
…		…
1547	on_reply => sub {	2168	on_reply => sub {
1548	my ($ns, $msg) = @_;	2169	my ($ns, $msg) = @_;
1549		2170
1550	# this weird shuffling is so that direct followup queries	2171	# this weird shuffling is so that direct followup queries
1551	# get handled first	2172	# get handled first
1552	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
1553		2175
1554	(shift @$queue)->[1]->($msg);	2176	(shift @$queue)->[1]->($msg);
		2177	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1555		2178
1556	push @{ $ns->{query_queue} }, @$queue;	2179	push @{ $ns->{query_queue} }, @$queue;
1557		2180
1558	if (@{ $ns->{query_queue} } == @$queue) {	2181	if (@{ $ns->{query_queue} } == @$queue) {
1559	if (@$queue) {	2182	if (@$queue) {
…		…
1563	}	2186	}
1564	}	2187	}
1565	},	2188	},
1566	);	2189	);
1567		2190
1568	=item $client->coro (\&cb)	2191	=item $client->async (\&cb)
1569		2192
1570	Create a new coroutine, running the specified callback. The coroutine will	2193	Create a new coroutine, running the specified callback. The coroutine will
1571	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,
1572	or loss of connection).	2195	or loss of connection).
1573		2196
1574	=cut	2197	=cut
1575		2198
1576	sub cf::client::coro {	2199	sub cf::client::async {
1577	my ($self, $cb) = @_;	2200	my ($self, $cb) = @_;
1578		2201
1579	my $coro; $coro = async {	2202	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		2203
1586	$coro->on_destroy (sub {	2204	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	2205	delete $self->{_coro}{$coro+0};
1588	});	2206	});
1589		2207
…		…
1622		2240
1623	# here we export the classes and methods available to script code	2241	# here we export the classes and methods available to script code
1624		2242
1625	=pod	2243	=pod
1626		2244
1627	The following fucntions and emthods are available within a safe environment:	2245	The following functions and methods are available within a safe environment:
1628		2246
1629	cf::object contr pay_amount pay_player map	2247	cf::object contr pay_amount pay_player map
1630	cf::object::player player	2248	cf::object::player player
1631	cf::player peaceful	2249	cf::player peaceful
1632	cf::map trigger	2250	cf::map trigger
…		…
1717	#############################################################################	2335	#############################################################################
1718		2336
1719	=head2 EXTENSION DATABASE SUPPORT	2337	=head2 EXTENSION DATABASE SUPPORT
1720		2338
1721	Crossfire maintains a very simple database for extension use. It can	2339	Crossfire maintains a very simple database for extension use. It can
1722	currently store anything that can be serialised using Storable, which	2340	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1723	excludes objects.	2341	convert to/from binary).
1724		2342
1725	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
1726	using it, it should be unique.	2344	using it, it should be unique.
1727		2345
1728	=over 4	2346	=over 4
1729		2347
1730	=item $hashref = cf::db_get $family
1731
1732	Return a hashref for use by the extension C<$family>, which can be
1733	modified. After modifications, you have to call C<cf::db_dirty> or
1734	C<cf::db_sync>.
1735
1736	=item $value = cf::db_get $family => $key	2348	=item $value = cf::db_get $family => $key
1737		2349
1738	Returns a single value from the database	2350	Returns a single value from the database.
1739
1740	=item cf::db_put $family => $hashref
1741
1742	Stores the given family hashref into the database. Updates are delayed, if
1743	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1744		2351
1745	=item cf::db_put $family => $key => $value	2352	=item cf::db_put $family => $key => $value
1746		2353
1747	Stores the given C<$value> in the family hash. Updates are delayed, if you	2354	Stores the given C<$value> in the family.
1748	want the data to be synced to disk immediately, use C<cf::db_sync>.
1749
1750	=item cf::db_dirty
1751
1752	Marks the database as dirty, to be updated at a later time.
1753
1754	=item cf::db_sync
1755
1756	Immediately write the database to disk I<if it is dirty>.
1757		2355
1758	=cut	2356	=cut
1759		2357
1760	our $DB;	2358	our $DB;
1761		2359
1762	{	2360	sub db_init {
1763	my $path = cf::localdir . "/database.pst";	2361	unless ($DB) {
		2362	$DB = BDB::db_create $DB_ENV;
1764		2363
1765	sub db_load() {	2364	cf::sync_job {
1766	warn "loading database $path\n";#d# remove later	2365	eval {
1767	$DB = stat $path ? Storable::retrieve $path : { };	2366	$DB->set_flags (BDB::CHKSUM);
1768	}
1769		2367
1770	my $pid;	2368	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1771		2369	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1772	sub db_save() {	2370	cf::cleanup "db_open(db): $!" if $!;
1773	warn "saving database $path\n";#d# remove later	2371	};
1774	waitpid $pid, 0 if $pid;	2372	cf::cleanup "db_open(db): $@" if $@;
1775	if (0 == ($pid = fork)) {
1776	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;
1779	cf::_exit 0 if defined $pid;
1780	}	2373	};
1781	}
1782
1783	my $dirty;
1784
1785	sub db_sync() {
1786	db_save if $dirty;
1787	undef $dirty;
1788	}
1789
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1791	db_sync;
1792	});	2374	}
		2375	}
1793		2376
1794	sub db_dirty() {
1795	$dirty = 1;
1796	$idle->start;
1797	}
1798
1799	sub db_get($;$) {	2377	sub db_get($$) {
1800	@_ >= 2	2378	my $key = "$_[0]/$_[1]";
1801	? $DB->{$_[0]}{$_[1]}
1802	: ($DB->{$_[0]} ||= { })
1803	}
1804		2379
		2380	cf::sync_job {
		2381	BDB::db_get $DB, undef, $key, my $data;
		2382
		2383	$! ? ()
		2384	: $data
		2385	}
		2386	}
		2387
1805	sub db_put($$;$) {	2388	sub db_put($$$) {
1806	if (@_ >= 3) {	2389	BDB::dbreq_pri 4;
1807	$DB->{$_[0]}{$_[1]} = $_[2];	2390	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1808	} else {	2391	}
1809	$DB->{$_[0]} = $_[1];
1810	}
1811	db_dirty;
1812	}
1813		2392
1814	cf::global->attach (	2393	=item cf::cache $id => [$paths...], $processversion => $process
1815	prio => 10000,	2394
1816	on_cleanup => sub {	2395	Generic caching function that returns the value of the resource $id,
1817	db_sync;	2396	caching and regenerating as required.
		2397
		2398	This function can block.
		2399
		2400	=cut
		2401
		2402	sub cache {
		2403	my ($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 "$src->[$_]: $!";
1818	},	2425	}
1819	);	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	}
1820	}	2505	}
1821		2506
1822	#############################################################################	2507	#############################################################################
1823	# 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	}
1824		2597
1825	sub cfg_load {	2598	sub cfg_load {
1826	open my $fh, "<:utf8", cf::confdir . "/config"	2599	open my $fh, "<:utf8", "$CONFDIR/config"
1827	or return;	2600	or return;
1828		2601
1829	local $/;	2602	local $/;
1830	*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	}
1831	}	2617	}
1832		2618
1833	sub main {	2619	sub main {
1834	# we must not ever block the main coroutine	2620	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	2621	local $Coro::idle = sub {
1836	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#
1837	(Coro::unblock_sub {	2623	(async {
1838	Event::one_event;	2624	Event::one_event;
1839	})->();	2625	})->prio (Coro::PRIO_MAX);
1840	};	2626	};
1841		2627
1842	cfg_load;	2628	cfg_load;
1843	db_load;	2629	db_init;
1844	load_extensions;	2630	load_extensions;
		2631
		2632	$TICK_WATCHER->start;
1845	Event::loop;	2633	Event::loop;
1846	}	2634	}
1847		2635
1848	#############################################################################	2636	#############################################################################
1849	# initialisation	2637	# initialisation and cleanup
1850		2638
		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
1851	sub reload() {	2694	sub do_reload_perl() {
1852	# can/must only be called in main	2695	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	2696	if ($Coro::current != $Coro::main) {
1854	warn "can only reload from main coroutine\n";	2697	warn "can only reload from main coroutine";
1855	return;	2698	return;
1856	}	2699	}
1857		2700
1858	warn "reloading...";	2701	warn "reloading...";
1859		2702
1860	local $FREEZE = 1;	2703	warn "entering sync_job";
		2704
		2705	cf::sync_job {
		2706	cf::write_runtime; # external watchdog should not bark
1861	cf::emergency_save;	2707	cf::emergency_save;
		2708	cf::write_runtime; # external watchdog should not bark
1862		2709
1863	eval {	2710	warn "syncing database to disk";
		2711	BDB::db_env_txn_checkpoint $DB_ENV;
		2712
1864	# 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
1865		2714
1866	# cancel all watchers	2715	warn "cancelling all WF_AUTOCANCEL watchers";
1867	for (Event::all_watchers) {	2716	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;	2717	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}	2718	}
1870		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
1871	# cancel all extension coros	2731	warn "cancelling all extension coros";
1872	$_->cancel for values %EXT_CORO;	2732	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	2733	%EXT_CORO = ();
1874		2734
1875	# unload all extensions	2735	warn "removing commands";
1876	for (@exts) {	2736	%COMMAND = ();
		2737
		2738	warn "removing ext commands";
		2739	%EXTCMD = ();
		2740
		2741	warn "unloading/nuking all extensions";
		2742	for my $pkg (@EXTS) {
1877	warn "unloading <$_>";	2743	warn "... unloading $pkg";
1878	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: $@";
1879	}	2750	}
1880		2751
		2752	warn "... nuking $pkg";
		2753	Symbol::delete_package $pkg;
		2754	}
		2755
1881	# unload all modules loaded from $LIBDIR	2756	warn "unloading all perl modules loaded from $LIBDIR";
1882	while (my ($k, $v) = each %INC) {	2757	while (my ($k, $v) = each %INC) {
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2758	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1884		2759
1885	warn "removing <$k>";	2760	warn "... unloading $k";
1886	delete $INC{$k};	2761	delete $INC{$k};
1887		2762
1888	$k =~ s/\.pm$//;	2763	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;	2764	$k =~ s/\//::/g;
1890		2765
…		…
1893	}	2768	}
1894		2769
1895	Symbol::delete_package $k;	2770	Symbol::delete_package $k;
1896	}	2771	}
1897		2772
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	2773	warn "getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	2774	Symbol::delete_package "safe::$_"
1904	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);
1905		2776
1906	# remove register_script_function callbacks
1907	# TODO
1908
1909	# unload cf.pm "a bit"	2777	warn "unloading cf.pm \"a bit\"";
1910	delete $INC{"cf.pm"};	2778	delete $INC{"cf.pm"};
		2779	delete $INC{"cf/pod.pm"};
1911		2780
1912	# don't, removes xs symbols, too,	2781	# don't, removes xs symbols, too,
1913	# and global variables created in xs	2782	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	2783	#Symbol::delete_package __PACKAGE__;
1915		2784
1916	# reload cf.pm	2785	warn "unload completed, starting to reload now";
		2786
1917	warn "reloading cf.pm";	2787	warn "reloading cf.pm";
1918	require cf;	2788	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2789	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1920		2790
1921	# load config and database again	2791	warn "loading config and database again";
1922	cf::cfg_load;	2792	cf::cfg_load;
1923	cf::db_load;
1924		2793
1925	# load extensions
1926	warn "load extensions";	2794	warn "loading extensions";
1927	cf::load_extensions;	2795	cf::load_extensions;
1928		2796
1929	# reattach attachments to objects	2797	warn "reattaching attachments to objects/players";
1930	warn "reattach";	2798	_global_reattach; # objects, sockets
1931	_global_reattach;	2799	warn "reattaching attachments to maps";
1932	};	2800	reattach $_ for values %MAP;
		2801	warn "reattaching attachments to players";
		2802	reattach $_ for values %PLAYER;
1933		2803
1934	if ($@) {	2804	warn "leaving sync_job";
		2805
		2806	1
		2807	} or do {
1935	warn $@;	2808	warn $@;
1936	warn "error while reloading, exiting.";	2809	warn "error while reloading, exiting.";
1937	exit 1;	2810	exit 1;
1938	}	2811	};
1939		2812
1940	warn "reloaded successfully";	2813	warn "reloaded";
1941	};	2814	};
1942		2815
1943	#############################################################################	2816	our $RELOAD_WATCHER; # used only during reload
1944		2817
1945	unless ($LINK_MAP) {	2818	sub reload_perl() {
1946	$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.
1947		2821
1948	$LINK_MAP->width (41);	2822	$RELOAD_WATCHER ||= Event->timer (
1949	$LINK_MAP->height (41);	2823	reentrant => 0,
1950	$LINK_MAP->alloc;
1951	$LINK_MAP->path ("{link}");
1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955	# dirty hack because... archetypes are not yet loaded
1956	Event->timer (
1957	after => 2,	2824	after => 0,
		2825	data => WF_AUTOCANCEL,
1958	cb => sub {	2826	cb => sub {
1959	$_[0]->w->cancel;	2827	do_reload_perl;
1960		2828	undef $RELOAD_WATCHER;
1961	# provide some exits "home"
1962	my $exit = cf::object::new "exit";
1963
1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968	$LINK_MAP->insert ($exit->clone, 19, 19);
1969	$LINK_MAP->insert ($exit->clone, 19, 20);
1970	$LINK_MAP->insert ($exit->clone, 19, 21);
1971	$LINK_MAP->insert ($exit->clone, 20, 19);
1972	$LINK_MAP->insert ($exit->clone, 20, 21);
1973	$LINK_MAP->insert ($exit->clone, 21, 19);
1974	$LINK_MAP->insert ($exit->clone, 21, 20);
1975	$LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977	$exit->destroy;
1978	});	2829	},
1979		2830	);
1980	$LINK_MAP->{deny_save} = 1;
1981	$LINK_MAP->{deny_reset} = 1;
1982
1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984	}	2831	}
1985
1986	register "<global>", __PACKAGE__;
1987		2832
1988	register_command "reload" => sub {	2833	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	2834	my ($who, $arg) = @_;
1990		2835
1991	if ($who->flag (FLAG_WIZ)) {	2836	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");
1993	reload;
1994	$who->message ("end of reload.");	2837	$who->message ("reloading server.");
		2838	async { reload_perl };
1995	}	2839	}
1996	};	2840	};
1997		2841
1998	unshift @INC, $LIBDIR;	2842	unshift @INC, $LIBDIR;
1999		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;
2000	$TICK_WATCHER = Event->timer (	2869	$TICK_WATCHER = Event->timer (
2001	reentrant => 0,	2870	reentrant => 0,
		2871	parked => 1,
2002	prio => 0,	2872	prio => 0,
2003	at => $NEXT_TICK || $TICK,	2873	at => $NEXT_TICK || $TICK,
2004	data => WF_AUTOCANCEL,	2874	data => WF_AUTOCANCEL,
2005	cb => sub {	2875	cb => sub {
2006	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
2007	cf::server_tick; # one server iteration	2884	cf::server_tick; # one server iteration
2008	$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
2009	}	2907	};
2010		2908
		2909	$RUNTIME += $TICK;
2011	$NEXT_TICK += $TICK;	2910	$NEXT_TICK += $TICK;
2012		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
2013	# 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
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2933	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2015		2934
2016	$TICK_WATCHER->at ($NEXT_TICK);	2935	$TICK_WATCHER->at ($NEXT_TICK);
2017	$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
2018	},	2944	},
2019	);	2945	);
2020		2946
		2947	{
2021	IO::AIO::max_poll_time $TICK * 0.2;	2948	BDB::max_poll_time $TICK * 0.1;
2022		2949	$BDB_POLL_WATCHER = Event->io (
2023	Event->io (	2950	reentrant => 0,
2024	fd => IO::AIO::poll_fileno,	2951	fd => BDB::poll_fileno,
2025	poll => 'r',	2952	poll => 'r',
2026	prio => 5,	2953	prio => 0,
2027	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,
2029	);
2030
2031	Event->timer (
2032	data => WF_AUTOCANCEL,	2954	data => WF_AUTOCANCEL,
2033	after => 0,	2955	cb => \&BDB::poll_cb,
2034	interval => 10,	2956	);
2035	cb => sub {	2957	BDB::min_parallel 8;
2036	(Coro::unblock_sub {	2958
2037	write_runtime	2959	BDB::set_sync_prepare {
2038	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 $@;
2039	})->();	2993	};
2040	},	2994	}
2041	);	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 }
2042		3054
2043	1	3055	1
2044		3056

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