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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.113 by root, Mon Jan 1 15:32:40 2007 UTC vs.
Revision 1.273 by root, Mon Jun 4 12:19:08 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~", $runtime
274	and return;	426	and return;
275		427
		428	warn "runtime file written.\n";#d#
		429
276	1	430	1
277	}	431	}
278		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		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";
…		…
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 || []};#d#
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	local $self->{deny_save};
		1311	local $self->{deny_reset};
		1312
		1313	$self->SUPER::thawer_merge ($merge);
		1314	}
		1315
		1316	sub normalise {
		1317	my ($path, $base) = @_;
		1318
		1319	$path = "$path"; # make sure its a string
		1320
		1321	$path =~ s/\.map$//;
		1322
		1323	# map plan:
		1324	#
		1325	# /! non-realised random map exit (special hack!)
		1326	# {... are special paths that are not being touched
		1327	# ?xxx/... are special absolute paths
		1328	# ?random/... random maps
		1329	# /... normal maps
		1330	# ~user/... per-player map of a specific user
		1331
		1332	$path =~ s/$PATH_SEP/\//go;
		1333
		1334	# treat it as relative path if it starts with
		1335	# something that looks reasonable
		1336	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1337	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1338
		1339	$base =~ s{[^/]+/?$}{};
		1340	$path = "$base/$path";
		1341	}
		1342
		1343	for ($path) {
		1344	redo if s{//}{/};
		1345	redo if s{/\.?/}{/};
		1346	redo if s{/[^/]+/\.\./}{/};
		1347	}
		1348
		1349	$path
		1350	}
		1351
		1352	sub new_from_path {
		1353	my (undef, $path, $base) = @_;
		1354
		1355	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1356
		1357	$path = normalise $path, $base;
		1358
		1359	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1360	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1361	my $self = bless cf::map::new, $pkg;
		1362	$self->{path} = $path; $self->path ($path);
		1363	$self->init; # pass $1 etc.
		1364	return $self;
		1365	}
		1366	}
		1367
		1368	Carp::carp "unable to resolve path '$path' (base '$base').";
		1369	()
		1370	}
		1371
		1372	sub init {
		1373	my ($self) = @_;
		1374
		1375	$self
		1376	}
		1377
		1378	sub as_string {
		1379	my ($self) = @_;
		1380
		1381	"$self->{path}"
		1382	}
		1383
		1384	# the displayed name, this is a one way mapping
		1385	sub visible_name {
		1386	&as_string
		1387	}
		1388
		1389	# the original (read-only) location
		1390	sub load_path {
		1391	my ($self) = @_;
		1392
		1393	"$MAPDIR/$self->{path}.map"
		1394	}
		1395
		1396	# the temporary/swap location
		1397	sub save_path {
		1398	my ($self) = @_;
		1399
		1400	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1401	"$TMPDIR/$path.map"
		1402	}
		1403
		1404	# the unique path, undef == no special unique path
		1405	sub uniq_path {
		1406	my ($self) = @_;
		1407
		1408	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1409	"$UNIQUEDIR/$path"
1075	}	1410	}
1076		1411
1077	# and all this just because we cannot iterate over	1412	# and all this just because we cannot iterate over
1078	# all maps in C++...	1413	# all maps in C++...
1079	sub change_all_map_light {	1414	sub change_all_map_light {
1080	my ($change) = @_;	1415	my ($change) = @_;
1081		1416
1082	$_->change_map_light ($change) for values %cf::MAP;	1417	$_->change_map_light ($change)
		1418	for grep $_->outdoor, values %cf::MAP;
1083	}	1419	}
1084		1420
		1421	sub unlink_save {
		1422	my ($self) = @_;
		1423
		1424	utf8::encode (my $save = $self->save_path);
		1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1427	}
		1428
1085	sub try_load_header($) {	1429	sub load_header_from($) {
1086	my ($path) = @_;	1430	my ($self, $path) = @_;
1087		1431
1088	utf8::encode $path;	1432	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1433	#aio_open $path, O_RDONLY, 0
		1434	# or return;
		1435
		1436	$self->_load_header ($path)
1090	or return;	1437	or return;
1091		1438
1092	my $map = cf::map::new	1439	$self->{load_path} = $path;
		1440
		1441	1
		1442	}
		1443
		1444	sub load_header_orig {
		1445	my ($self) = @_;
		1446
		1447	$self->load_header_from ($self->load_path)
		1448	}
		1449
		1450	sub load_header_temp {
		1451	my ($self) = @_;
		1452
		1453	$self->load_header_from ($self->save_path)
		1454	}
		1455
		1456	sub prepare_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->last_access ((delete $self->{last_access})
		1460	|| $cf::RUNTIME); #d#
		1461	# safety
		1462	$self->{instantiate_time} = $cf::RUNTIME
		1463	if $self->{instantiate_time} > $cf::RUNTIME;
		1464	}
		1465
		1466	sub prepare_orig {
		1467	my ($self) = @_;
		1468
		1469	$self->{load_original} = 1;
		1470	$self->{instantiate_time} = $cf::RUNTIME;
		1471	$self->last_access ($cf::RUNTIME);
		1472	$self->instantiate;
		1473	}
		1474
		1475	sub load_header {
		1476	my ($self) = @_;
		1477
		1478	if ($self->load_header_temp) {
		1479	$self->prepare_temp;
		1480	} else {
		1481	$self->load_header_orig
1093	or return;	1482	or return;
		1483	$self->prepare_orig;
		1484	}
1094		1485
1095	$map->load_header ($path)	1486	$self->default_region (cf::region::find_by_path $self->{path})
1096	or return;	1487	unless $self->default_region;
1097		1488
1098	$map->{load_path} = $path;	1489	1
1099
1100	$map
1101	}	1490	}
1102		1491
		1492	sub find;
1103	sub find_map {	1493	sub find {
1104	my ($path, $origin) = @_;	1494	my ($path, $origin) = @_;
1105		1495
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1496	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1497
		1498	cf::lock_wait "map_find:$path";
		1499
1111	$cf::MAP{$key} || do {	1500	$cf::MAP{$path} || do {
1112	# do it the slow way	1501	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1502	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;	1503	or return;
1127		1504
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);	1505	$map->{last_save} = $cf::RUNTIME;
1139		1506
1140	if ($map->should_reset) {	1507	$map->load_header
		1508	or return;
		1509
		1510	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1511	# doing this can freeze the server in a sync job, obviously
		1512	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1513	$map->reset;
1142	$map = find_map $path;	1514	undef $guard;
		1515	return find $path;
1143	}	1516	}
1144		1517
1145	$cf::MAP{$key} = $map	1518	$cf::MAP{$path} = $map
1146	}	1519	}
1147	}	1520	}
		1521
		1522	sub pre_load { }
		1523	sub post_load { }
1148		1524
1149	sub load {	1525	sub load {
1150	my ($self) = @_;	1526	my ($self) = @_;
1151		1527
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1528	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		1529
1156	my $path = $self->{path};	1530	my $path = $self->{path};
1157		1531
		1532	{
		1533	my $guard = cf::lock_acquire "map_load:$path";
		1534
		1535	return if $self->in_memory != cf::MAP_SWAPPED;
		1536
		1537	$self->in_memory (cf::MAP_LOADING);
		1538
1158	$self->alloc;	1539	$self->alloc;
		1540
		1541	$self->pre_load;
		1542	Coro::cede;
		1543
1159	$self->load_objects ($self->{load_path}, 1)	1544	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1545	or return;
1161		1546
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1547	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1548	if delete $self->{load_original};
1164		1549
1165	if (my $uniq = $path->uniq_path) {	1550	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1551	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1552	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1553	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1554	$self->_load_objects ($uniq, 0);
1170	}	1555	}
1171	}	1556	}
1172		1557
		1558	Coro::cede;
1173	# now do the right thing for maps	1559	# now do the right thing for maps
1174	$self->link_multipart_objects;	1560	$self->link_multipart_objects;
1175
1176	if ($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)	1561	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1562	unless $self->difficulty;
		1563	Coro::cede;
		1564
		1565	unless ($self->{deny_activate}) {
		1566	$self->decay_objects;
		1567	$self->fix_auto_apply;
		1568	$self->update_buttons;
		1569	Coro::cede;
		1570	$self->set_darkness_map;
		1571	Coro::cede;
1186	$self->activate;	1572	$self->activate;
1187	}	1573	}
1188		1574
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1575	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1576	}
1191		1577
1192	sub load_map_sync {	1578	$self->post_load;
		1579	}
		1580
		1581	sub customise_for {
		1582	my ($self, $ob) = @_;
		1583
		1584	return find "~" . $ob->name . "/" . $self->{path}
		1585	if $self->per_player;
		1586
		1587	$self
		1588	}
		1589
		1590	# find and load all maps in the 3x3 area around a map
		1591	sub load_diag {
		1592	my ($map) = @_;
		1593
		1594	my @diag; # diagonal neighbours
		1595
		1596	for (0 .. 3) {
		1597	my $neigh = $map->tile_path ($_)
		1598	or next;
		1599	$neigh = find $neigh, $map
		1600	or next;
		1601	$neigh->load;
		1602
		1603	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1604	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1605	}
		1606
		1607	for (@diag) {
		1608	my $neigh = find @$_
		1609	or next;
		1610	$neigh->load;
		1611	}
		1612	}
		1613
		1614	sub find_sync {
1193	my ($path, $origin) = @_;	1615	my ($path, $origin) = @_;
1194		1616
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1617	cf::sync_job { find $path, $origin }
		1618	}
1196		1619
1197	cf::sync_job {	1620	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1621	my ($map) = @_;
1199	or return;	1622
		1623	cf::sync_job { $map->load };
		1624	}
		1625
		1626	our %MAP_PREFETCH;
		1627	our $MAP_PREFETCHER = undef;
		1628
		1629	sub find_async {
		1630	my ($path, $origin) = @_;
		1631
		1632	$path = normalise $path, $origin && $origin->{path};
		1633
		1634	if (my $map = $cf::MAP{$path}) {
		1635	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1636	}
		1637
		1638	undef $MAP_PREFETCH{$path};
		1639	$MAP_PREFETCHER ||= cf::async {
		1640	while (%MAP_PREFETCH) {
		1641	for my $path (keys %MAP_PREFETCH) {
		1642	my $map = find $path
		1643	or next;
1200	$map->load;	1644	$map->load;
1201	$map	1645
		1646	delete $MAP_PREFETCH{$path};
		1647	}
		1648	}
		1649	undef $MAP_PREFETCHER;
1202	}	1650	};
		1651	$MAP_PREFETCHER->prio (6);
		1652
		1653	()
1203	}	1654	}
1204		1655
1205	sub save {	1656	sub save {
1206	my ($self) = @_;	1657	my ($self) = @_;
1207		1658
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1659	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1660
1211	$self->{last_save} = $cf::RUNTIME;	1661	$self->{last_save} = $cf::RUNTIME;
1212		1662
1213	return unless $self->dirty;	1663	return unless $self->dirty;
1214		1664
		1665	my $save = $self->save_path; utf8::encode $save;
		1666	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1667
1215	$self->{load_path} = $save;	1668	$self->{load_path} = $save;
1216		1669
1217	return if $self->{deny_save};	1670	return if $self->{deny_save};
1218		1671
		1672	local $self->{last_access} = $self->last_access;#d#
		1673
		1674	cf::async {
		1675	$_->contr->save for $self->players;
		1676	};
		1677
1219	if ($uniq) {	1678	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1679	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1680	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1681	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1682	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1683	}
1225	}	1684	}
1226		1685
1227	sub swap_out {	1686	sub swap_out {
1228	my ($self) = @_;	1687	my ($self) = @_;
		1688
		1689	# save first because save cedes
		1690	$self->save;
		1691
		1692	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1693
1230	return if $self->players;	1694	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1695	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1696	return if $self->{deny_save};
1233		1697
1234	$self->save;
1235	$self->clear;	1698	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1699	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1700	}
1238		1701
1239	sub reset_at {	1702	sub reset_at {
1240	my ($self) = @_;	1703	my ($self) = @_;
1241		1704
1242	# TODO: safety, remove and allow resettable per-player maps	1705	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};	1706	return 1e99 if $self->isa ("ext::map_per_player");#d#
1244	return 1e100 if $self->{deny_reset};	1707	return 1e99 if $self->{deny_reset};
1245		1708
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1709	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1710	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1711
1250	$time + $to	1712	$time + $to
1251	}	1713	}
1252		1714
1253	sub should_reset {	1715	sub should_reset {
1254	my ($self) = @_;	1716	my ($self) = @_;
1255		1717
1256	$self->reset_at <= $cf::RUNTIME	1718	$self->reset_at <= $cf::RUNTIME
1257	}	1719	}
1258		1720
1259	sub unlink_save {
1260	my ($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 rename {
1268	my ($self, $new_path) = @_;
1269
1270	$self->unlink_save;
1271
1272	delete $cf::MAP{$self->path};
1273	$self->{path} = new cf::path $new_path;
1274	$self->path ($self->{path}->path);
1275	$cf::MAP{$self->path} = $self;
1276
1277	$self->save;
1278	}
1279
1280	sub reset {	1721	sub reset {
1281	my ($self) = @_;	1722	my ($self) = @_;
1282		1723
		1724	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1725
1283	return if $self->players;	1726	return if $self->players;
1284	return if $self->{path}{user_rel};#d#	1727	return if $self->isa ("ext::map_per_player");#d#
1285		1728
1286	warn "resetting map ", $self->path;#d#	1729	warn "resetting map ", $self->path;#d#
1287		1730
		1731	$self->in_memory (cf::MAP_SWAPPED);
		1732
		1733	# need to save uniques path
		1734	unless ($self->{deny_save}) {
		1735	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1736
		1737	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1738	if $uniq;
		1739	}
		1740
1288	delete $cf::MAP{$self->path};	1741	delete $cf::MAP{$self->path};
		1742
		1743	$self->clear;
1289		1744
1290	$_->clear_links_to ($self) for values %cf::MAP;	1745	$_->clear_links_to ($self) for values %cf::MAP;
1291		1746
1292	$self->unlink_save;	1747	$self->unlink_save;
1293	$self->destroy;	1748	$self->destroy;
1294	}	1749	}
1295		1750
1296	sub customise_for {	1751	my $nuke_counter = "aaaa";
1297	my ($map, $ob) = @_;
1298		1752
1299	if ($map->per_player) {	1753	sub nuke {
1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1754	my ($self) = @_;
1301	}
1302		1755
1303	$map	1756	delete $cf::MAP{$self->path};
1304	}
1305		1757
1306	sub emergency_save {	1758	$self->unlink_save;
1307	local $cf::FREEZE = 1;
1308		1759
1309	warn "enter emergency map save\n";	1760	bless $self, "cf::map";
		1761	delete $self->{deny_reset};
		1762	$self->{deny_save} = 1;
		1763	$self->reset_timeout (1);
		1764	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1310		1765
1311	cf::sync_job {	1766	$cf::MAP{$self->path} = $self;
1312	warn "begin emergency map save\n";	1767
1313	$_->save for values %cf::MAP;	1768	$self->reset; # polite request, might not happen
		1769	}
		1770
		1771	=item cf::map::unique_maps
		1772
		1773	Returns an arrayref of paths of all shared maps that have
		1774	instantiated unique items. May block.
		1775
		1776	=cut
		1777
		1778	sub unique_maps() {
		1779	my $files = aio_readdir $UNIQUEDIR
		1780	or return;
		1781
		1782	my @paths;
		1783
		1784	for (@$files) {
		1785	utf8::decode $_;
		1786	next if /\.pst$/;
		1787	next unless /^$PATH_SEP/o;
		1788
		1789	push @paths, cf::map::normalise $_;
1314	};	1790	}
1315		1791
1316	warn "end emergency map save\n";	1792	\@paths
1317	}	1793	}
1318		1794
1319	package cf;	1795	package cf;
1320		1796
1321	=back	1797	=back
1322		1798
		1799	=head3 cf::object
		1800
		1801	=cut
		1802
		1803	package cf::object;
		1804
		1805	=over 4
		1806
		1807	=item $ob->inv_recursive
		1808
		1809	Returns the inventory of the object _and_ their inventories, recursively.
		1810
		1811	=cut
		1812
		1813	sub inv_recursive_;
		1814	sub inv_recursive_ {
		1815	map { $_, inv_recursive_ $_->inv } @_
		1816	}
		1817
		1818	sub inv_recursive {
		1819	inv_recursive_ inv $_[0]
		1820	}
		1821
		1822	package cf;
		1823
		1824	=back
1323		1825
1324	=head3 cf::object::player	1826	=head3 cf::object::player
1325		1827
1326	=over 4	1828	=over 4
1327		1829
…		…
1363	(ref $cf::CFG{"may_$access"}	1865	(ref $cf::CFG{"may_$access"}
1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1866	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365	: $cf::CFG{"may_$access"})	1867	: $cf::CFG{"may_$access"})
1366	}	1868	}
1367		1869
		1870	=item $player_object->enter_link
		1871
		1872	Freezes the player and moves him/her to a special map (C<{link}>).
		1873
		1874	The player should be reasonably safe there for short amounts of time. You
		1875	I<MUST> call C<leave_link> as soon as possible, though.
		1876
		1877	Will never block.
		1878
		1879	=item $player_object->leave_link ($map, $x, $y)
		1880
		1881	Moves the player out of the special C<{link}> map onto the specified
		1882	map. If the map is not valid (or omitted), the player will be moved back
		1883	to the location he/she was before the call to C<enter_link>, or, if that
		1884	fails, to the emergency map position.
		1885
		1886	Might block.
		1887
		1888	=cut
		1889
		1890	sub link_map {
		1891	unless ($LINK_MAP) {
		1892	$LINK_MAP = cf::map::find "{link}"
		1893	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1894	$LINK_MAP->load;
		1895	}
		1896
		1897	$LINK_MAP
		1898	}
		1899
1368	sub cf::object::player::enter_link {	1900	sub cf::object::player::enter_link {
1369	my ($self) = @_;	1901	my ($self) = @_;
1370		1902
1371	return if $self->map == $LINK_MAP;
1372
1373	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1374	if $self->map;
1375
1376	$self->enter_map ($LINK_MAP, 20, 20);
1377	$self->deactivate_recursive;	1903	$self->deactivate_recursive;
		1904
		1905	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1906
		1907	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1908	if $self->map && $self->map->{path} ne "{link}";
		1909
		1910	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1378	}	1911	}
1379		1912
1380	sub cf::object::player::leave_link {	1913	sub cf::object::player::leave_link {
1381	my ($self, $map, $x, $y) = @_;	1914	my ($self, $map, $x, $y) = @_;
1382		1915
		1916	return unless $self->contr->active;
		1917
1383	my $link_pos = delete $self->{_link_pos};	1918	my $link_pos = delete $self->{_link_pos};
1384		1919
1385	unless ($map) {	1920	unless ($map) {
1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388	# restore original map position	1921	# restore original map position
1389	($map, $x, $y) = @{ $link_pos || [] };	1922	($map, $x, $y) = @{ $link_pos || [] };
1390	$map = cf::map::find_map $map;	1923	$map = cf::map::find $map;
1391		1924
1392	unless ($map) {	1925	unless ($map) {
1393	($map, $x, $y) = @$EMERGENCY_POSITION;	1926	($map, $x, $y) = @$EMERGENCY_POSITION;
1394	$map = cf::map::find_map $map	1927	$map = cf::map::find $map
1395	or die "FATAL: cannot load emergency map\n";	1928	or die "FATAL: cannot load emergency map\n";
1396	}	1929	}
1397	}	1930	}
1398		1931
1399	($x, $y) = (-1, -1)	1932	($x, $y) = (-1, -1)
…		…
1402	# use -1 or undef as default coordinates, not 0, 0	1935	# use -1 or undef as default coordinates, not 0, 0
1403	($x, $y) = ($map->enter_x, $map->enter_y)	1936	($x, $y) = ($map->enter_x, $map->enter_y)
1404	if $x <=0 && $y <= 0;	1937	if $x <=0 && $y <= 0;
1405		1938
1406	$map->load;	1939	$map->load;
		1940	$map->load_diag;
1407		1941
		1942	return unless $self->contr->active;
1408	$self->activate_recursive;	1943	$self->activate_recursive;
		1944
		1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1409	$self->enter_map ($map, $x, $y);	1946	$self->enter_map ($map, $x, $y);
1410	}	1947	}
1411		1948
1412	=item $player_object->goto_map ($map, $x, $y)	1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1413		1950
1414	=cut	1951	Moves the player to the given map-path and coordinates by first freezing
		1952	her, loading and preparing them map, calling the provided $check callback
		1953	that has to return the map if sucecssful, and then unfreezes the player on
		1954	the new (success) or old (failed) map position.
1415		1955
		1956	=cut
		1957
		1958	our $GOTOGEN;
		1959
1416	sub cf::object::player::goto_map {	1960	sub cf::object::player::goto {
1417	my ($self, $path, $x, $y) = @_;	1961	my ($self, $path, $x, $y, $check) = @_;
		1962
		1963	# do generation counting so two concurrent goto's will be executed in-order
		1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1418		1965
1419	$self->enter_link;	1966	$self->enter_link;
1420		1967
1421	(Coro::async {	1968	(async {
1422	$path = new cf::path $path;	1969	my $map = eval {
1423
1424	my $map = cf::map::find_map $path->as_string;	1970	my $map = cf::map::find $path;
		1971
		1972	if ($map) {
1425	$map = $map->customise_for ($self) if $map;	1973	$map = $map->customise_for ($self);
		1974	$map = $check->($map) if $check && $map;
		1975	} else {
		1976	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1977	}
1426		1978
1427	warn "entering ", $map->path, " at ($x, $y)\n"
1428	if $map;	1979	$map
		1980	};
1429		1981
		1982	if ($@) {
		1983	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1984	LOG llevError | logBacktrace, Carp::longmess $@;
		1985	}
		1986
		1987	if ($gen == $self->{_goto_generation}) {
		1988	delete $self->{_goto_generation};
1430	$self->leave_link ($map, $x, $y);	1989	$self->leave_link ($map, $x, $y);
		1990	}
1431	})->prio (1);	1991	})->prio (1);
1432	}	1992	}
1433		1993
1434	=item $player_object->enter_exit ($exit_object)	1994	=item $player_object->enter_exit ($exit_object)
1435		1995
…		…
1437		1997
1438	sub parse_random_map_params {	1998	sub parse_random_map_params {
1439	my ($spec) = @_;	1999	my ($spec) = @_;
1440		2000
1441	my $rmp = { # defaults	2001	my $rmp = { # defaults
1442	xsize => 10,	2002	xsize => (cf::rndm 15, 40),
1443	ysize => 10,	2003	ysize => (cf::rndm 15, 40),
		2004	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2005	#layout => string,
1444	};	2006	};
1445		2007
1446	for (split /\n/, $spec) {	2008	for (split /\n/, $spec) {
1447	my ($k, $v) = split /\s+/, $_, 2;	2009	my ($k, $v) = split /\s+/, $_, 2;
1448		2010
…		…
1452	$rmp	2014	$rmp
1453	}	2015	}
1454		2016
1455	sub prepare_random_map {	2017	sub prepare_random_map {
1456	my ($exit) = @_;	2018	my ($exit) = @_;
		2019
		2020	my $guard = cf::lock_acquire "exit_prepare:$exit";
1457		2021
1458	# all this does is basically replace the /! path by	2022	# all this does is basically replace the /! path by
1459	# a new random map path (?random/...) with a seed	2023	# a new random map path (?random/...) with a seed
1460	# that depends on the exit object	2024	# that depends on the exit object
1461		2025
1462	my $rmp = parse_random_map_params $exit->msg;	2026	my $rmp = parse_random_map_params $exit->msg;
1463		2027
1464	if ($exit->map) {	2028	if ($exit->map) {
1465	$rmp->{region} = $exit->map->region_name;	2029	$rmp->{region} = $exit->region->name;
1466	$rmp->{origin_map} = $exit->map->path;	2030	$rmp->{origin_map} = $exit->map->path;
1467	$rmp->{origin_x} = $exit->x;	2031	$rmp->{origin_x} = $exit->x;
1468	$rmp->{origin_y} = $exit->y;	2032	$rmp->{origin_y} = $exit->y;
1469	}	2033	}
1470		2034
1471	$rmp->{random_seed} ||= $exit->random_seed;	2035	$rmp->{random_seed} ||= $exit->random_seed;
1472		2036
1473	my $data = cf::to_json $rmp;	2037	my $data = cf::to_json $rmp;
1474	my $md5 = Digest::MD5::md5_hex $data;	2038	my $md5 = Digest::MD5::md5_hex $data;
		2039	my $meta = "$RANDOMDIR/$md5.meta";
1475		2040
1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2041	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1477	aio_write $fh, 0, (length $data), $data, 0;	2042	aio_write $fh, 0, (length $data), $data, 0;
		2043	undef $fh;
		2044	aio_rename "$meta~", $meta;
1478		2045
1479	$exit->slaying ("?random/$md5");	2046	$exit->slaying ("?random/$md5");
1480	$exit->msg (undef);	2047	$exit->msg (undef);
1481	}	2048	}
1482	}	2049	}
…		…
1484	sub cf::object::player::enter_exit {	2051	sub cf::object::player::enter_exit {
1485	my ($self, $exit) = @_;	2052	my ($self, $exit) = @_;
1486		2053
1487	return unless $self->type == cf::PLAYER;	2054	return unless $self->type == cf::PLAYER;
1488		2055
		2056	if ($exit->slaying eq "/!") {
		2057	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2058	# the problem is that $exit might not survive long enough
		2059	# so it needs to be done right now, right here
		2060	cf::sync_job { prepare_random_map $exit };
		2061	}
		2062
		2063	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2064	my $hp = $exit->stats->hp;
		2065	my $sp = $exit->stats->sp;
		2066
1489	$self->enter_link;	2067	$self->enter_link;
1490		2068
1491	(Coro::async {	2069	(async {
		2070	$self->deactivate_recursive; # just to be sure
1492	unless (eval {	2071	unless (eval {
1493		2072	$self->goto ($slaying, $hp, $sp);
1494	prepare_random_map $exit
1495	if $exit->slaying eq "/!";
1496
1497	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1498	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1499		2073
1500	1;	2074	1;
1501	}) {	2075	}) {
1502	$self->message ("Something went wrong deep within the crossfire server. "	2076	$self->message ("Something went wrong deep within the crossfire server. "
1503	. "I'll try to bring you back to the map you were before. "	2077	. "I'll try to bring you back to the map you were before. "
1504	. "Please report this to the dungeon master",	2078	. "Please report this to the dungeon master!",
1505	cf::NDI_UNIQUE | cf::NDI_RED);	2079	cf::NDI_UNIQUE | cf::NDI_RED);
1506		2080
1507	warn "ERROR in enter_exit: $@";	2081	warn "ERROR in enter_exit: $@";
1508	$self->leave_link;	2082	$self->leave_link;
1509	}	2083	}
1510	})->prio (1);	2084	})->prio (1);
…		…
1523		2097
1524	sub cf::client::send_drawinfo {	2098	sub cf::client::send_drawinfo {
1525	my ($self, $text, $flags) = @_;	2099	my ($self, $text, $flags) = @_;
1526		2100
1527	utf8::encode $text;	2101	utf8::encode $text;
1528	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2102	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1529	}	2103	}
1530		2104
		2105	=item $client->ext_event ($type, %msg)
		2106
		2107	Sends an exti event to the client.
		2108
		2109	=cut
		2110
		2111	sub cf::client::ext_event($$%) {
		2112	my ($self, $type, %msg) = @_;
		2113
		2114	$msg{msgtype} = "event_$type";
		2115	$self->send_packet ("ext " . cf::to_json \%msg);
		2116	}
1531		2117
1532	=item $success = $client->query ($flags, "text", \&cb)	2118	=item $success = $client->query ($flags, "text", \&cb)
1533		2119
1534	Queues a query to the client, calling the given callback with	2120	Queues a query to the client, calling the given callback with
1535	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2121	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1560	on_reply => sub {	2146	on_reply => sub {
1561	my ($ns, $msg) = @_;	2147	my ($ns, $msg) = @_;
1562		2148
1563	# this weird shuffling is so that direct followup queries	2149	# this weird shuffling is so that direct followup queries
1564	# get handled first	2150	# get handled first
1565	my $queue = delete $ns->{query_queue};	2151	my $queue = delete $ns->{query_queue}
		2152	or return; # be conservative, not sure how that can happen, but we saw a crash here
1566		2153
1567	(shift @$queue)->[1]->($msg);	2154	(shift @$queue)->[1]->($msg);
		2155	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1568		2156
1569	push @{ $ns->{query_queue} }, @$queue;	2157	push @{ $ns->{query_queue} }, @$queue;
1570		2158
1571	if (@{ $ns->{query_queue} } == @$queue) {	2159	if (@{ $ns->{query_queue} } == @$queue) {
1572	if (@$queue) {	2160	if (@$queue) {
…		…
1576	}	2164	}
1577	}	2165	}
1578	},	2166	},
1579	);	2167	);
1580		2168
1581	=item $client->coro (\&cb)	2169	=item $client->async (\&cb)
1582		2170
1583	Create a new coroutine, running the specified callback. The coroutine will	2171	Create a new coroutine, running the specified callback. The coroutine will
1584	be automatically cancelled when the client gets destroyed (e.g. on logout,	2172	be automatically cancelled when the client gets destroyed (e.g. on logout,
1585	or loss of connection).	2173	or loss of connection).
1586		2174
1587	=cut	2175	=cut
1588		2176
1589	sub cf::client::coro {	2177	sub cf::client::async {
1590	my ($self, $cb) = @_;	2178	my ($self, $cb) = @_;
1591		2179
1592	my $coro; $coro = async {	2180	my $coro = &Coro::async ($cb);
1593	eval {
1594	$cb->();
1595	};
1596	warn $@ if $@;
1597	};
1598		2181
1599	$coro->on_destroy (sub {	2182	$coro->on_destroy (sub {
1600	delete $self->{_coro}{$coro+0};	2183	delete $self->{_coro}{$coro+0};
1601	});	2184	});
1602		2185
…		…
1635		2218
1636	# here we export the classes and methods available to script code	2219	# here we export the classes and methods available to script code
1637		2220
1638	=pod	2221	=pod
1639		2222
1640	The following fucntions and emthods are available within a safe environment:	2223	The following functions and methods are available within a safe environment:
1641		2224
1642	cf::object contr pay_amount pay_player map	2225	cf::object contr pay_amount pay_player map
1643	cf::object::player player	2226	cf::object::player player
1644	cf::player peaceful	2227	cf::player peaceful
1645	cf::map trigger	2228	cf::map trigger
…		…
1730	#############################################################################	2313	#############################################################################
1731		2314
1732	=head2 EXTENSION DATABASE SUPPORT	2315	=head2 EXTENSION DATABASE SUPPORT
1733		2316
1734	Crossfire maintains a very simple database for extension use. It can	2317	Crossfire maintains a very simple database for extension use. It can
1735	currently store anything that can be serialised using Storable, which	2318	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1736	excludes objects.	2319	convert to/from binary).
1737		2320
1738	The parameter C<$family> should best start with the name of the extension	2321	The parameter C<$family> should best start with the name of the extension
1739	using it, it should be unique.	2322	using it, it should be unique.
1740		2323
1741	=over 4	2324	=over 4
1742		2325
1743	=item $hashref = cf::db_get $family
1744
1745	Return a hashref for use by the extension C<$family>, which can be
1746	modified. After modifications, you have to call C<cf::db_dirty> or
1747	C<cf::db_sync>.
1748
1749	=item $value = cf::db_get $family => $key	2326	=item $value = cf::db_get $family => $key
1750		2327
1751	Returns a single value from the database	2328	Returns a single value from the database.
1752
1753	=item cf::db_put $family => $hashref
1754
1755	Stores the given family hashref into the database. Updates are delayed, if
1756	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1757		2329
1758	=item cf::db_put $family => $key => $value	2330	=item cf::db_put $family => $key => $value
1759		2331
1760	Stores the given C<$value> in the family hash. Updates are delayed, if you	2332	Stores the given C<$value> in the family.
1761	want the data to be synced to disk immediately, use C<cf::db_sync>.
1762
1763	=item cf::db_dirty
1764
1765	Marks the database as dirty, to be updated at a later time.
1766
1767	=item cf::db_sync
1768
1769	Immediately write the database to disk I<if it is dirty>.
1770		2333
1771	=cut	2334	=cut
1772		2335
1773	our $DB;	2336	our $DB;
1774		2337
1775	{	2338	sub db_init {
1776	my $path = cf::localdir . "/database.pst";	2339	unless ($DB) {
		2340	$DB = BDB::db_create $DB_ENV;
1777		2341
1778	sub db_load() {	2342	cf::sync_job {
1779	warn "loading database $path\n";#d# remove later	2343	eval {
1780	$DB = stat $path ? Storable::retrieve $path : { };	2344	$DB->set_flags (BDB::CHKSUM);
1781	}
1782		2345
1783	my $pid;	2346	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1784		2347	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1785	sub db_save() {	2348	cf::cleanup "db_open(db): $!" if $!;
1786	warn "saving database $path\n";#d# remove later	2349	};
1787	waitpid $pid, 0 if $pid;	2350	cf::cleanup "db_open(db): $@" if $@;
1788	if (0 == ($pid = fork)) {
1789	$DB->{_meta}{version} = 1;
1790	Storable::nstore $DB, "$path~";
1791	rename "$path~", $path;
1792	cf::_exit 0 if defined $pid;
1793	}	2351	};
1794	}
1795
1796	my $dirty;
1797
1798	sub db_sync() {
1799	db_save if $dirty;
1800	undef $dirty;
1801	}
1802
1803	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1804	db_sync;
1805	});	2352	}
		2353	}
1806		2354
1807	sub db_dirty() {
1808	$dirty = 1;
1809	$idle->start;
1810	}
1811
1812	sub db_get($;$) {	2355	sub db_get($$) {
1813	@_ >= 2	2356	my $key = "$_[0]/$_[1]";
1814	? $DB->{$_[0]}{$_[1]}
1815	: ($DB->{$_[0]} ||= { })
1816	}
1817		2357
		2358	cf::sync_job {
		2359	BDB::db_get $DB, undef, $key, my $data;
		2360
		2361	$! ? ()
		2362	: $data
		2363	}
		2364	}
		2365
1818	sub db_put($$;$) {	2366	sub db_put($$$) {
1819	if (@_ >= 3) {	2367	BDB::dbreq_pri 4;
1820	$DB->{$_[0]}{$_[1]} = $_[2];	2368	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1821	} else {	2369	}
1822	$DB->{$_[0]} = $_[1];
1823	}
1824	db_dirty;
1825	}
1826		2370
1827	cf::global->attach (	2371	=item cf::cache $id => [$paths...], $processversion => $process
1828	prio => 10000,	2372
1829	on_cleanup => sub {	2373	Generic caching function that returns the value of the resource $id,
1830	db_sync;	2374	caching and regenerating as required.
		2375
		2376	This function can block.
		2377
		2378	=cut
		2379
		2380	sub cache {
		2381	my ($id, $src, $processversion, $process) = @_;
		2382
		2383	my $meta =
		2384	join "\x00",
		2385	$processversion,
		2386	map {
		2387	aio_stat $_
		2388	and Carp::croak "$_: $!";
		2389
		2390	($_, (stat _)[7,9])
		2391	} @$src;
		2392
		2393	my $dbmeta = db_get cache => "$id/meta";
		2394	if ($dbmeta ne $meta) {
		2395	# changed, we may need to process
		2396
		2397	my @data;
		2398	my $md5;
		2399
		2400	for (0 .. $#$src) {
		2401	0 <= aio_load $src->[$_], $data[$_]
		2402	or Carp::croak "$src->[$_]: $!";
1831	},	2403	}
1832	);	2404
		2405	# if processing is expensive, check
		2406	# checksum first
		2407	if (1) {
		2408	$md5 =
		2409	join "\x00",
		2410	$processversion,
		2411	map {
		2412	Coro::cede;
		2413	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2414	} 0.. $#$src;
		2415
		2416
		2417	my $dbmd5 = db_get cache => "$id/md5";
		2418	if ($dbmd5 eq $md5) {
		2419	db_put cache => "$id/meta", $meta;
		2420
		2421	return db_get cache => "$id/data";
		2422	}
		2423	}
		2424
		2425	my $t1 = Time::HiRes::time;
		2426	my $data = $process->(\@data);
		2427	my $t2 = Time::HiRes::time;
		2428
		2429	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2430
		2431	db_put cache => "$id/data", $data;
		2432	db_put cache => "$id/md5" , $md5;
		2433	db_put cache => "$id/meta", $meta;
		2434
		2435	return $data;
		2436	}
		2437
		2438	db_get cache => "$id/data"
		2439	}
		2440
		2441	=item fork_call { }, $args
		2442
		2443	Executes the given code block with the given arguments in a seperate
		2444	process, returning the results. Everything must be serialisable with
		2445	Coro::Storable. May, of course, block. Note that the executed sub may
		2446	never block itself or use any form of Event handling.
		2447
		2448	=cut
		2449
		2450	sub fork_call(&@) {
		2451	my ($cb, @args) = @_;
		2452
		2453	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2454	# or die "socketpair: $!";
		2455	pipe my $fh1, my $fh2
		2456	or die "pipe: $!";
		2457
		2458	if (my $pid = fork) {
		2459	close $fh2;
		2460
		2461	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2462	$res = Coro::Storable::thaw $res;
		2463
		2464	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2465
		2466	die $$res unless "ARRAY" eq ref $res;
		2467
		2468	return wantarray ? @$res : $res->[-1];
		2469	} else {
		2470	reset_signals;
		2471	local $SIG{__WARN__};
		2472	local $SIG{__DIE__};
		2473	eval {
		2474	close $fh1;
		2475
		2476	my @res = eval { $cb->(@args) };
		2477	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2478	};
		2479
		2480	warn $@ if $@;
		2481	_exit 0;
		2482	}
1833	}	2483	}
1834		2484
1835	#############################################################################	2485	#############################################################################
1836	# the server's main()	2486	# the server's init and main functions
		2487
		2488	sub load_facedata($) {
		2489	my ($path) = @_;
		2490
		2491	warn "loading facedata from $path\n";
		2492
		2493	my $facedata;
		2494	0 < aio_load $path, $facedata
		2495	or die "$path: $!";
		2496
		2497	$facedata = Coro::Storable::thaw $facedata;
		2498
		2499	$facedata->{version} == 2
		2500	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2501
		2502	{
		2503	my $faces = $facedata->{faceinfo};
		2504
		2505	while (my ($face, $info) = each %$faces) {
		2506	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2510	Coro::cede;
		2511	}
		2512
		2513	while (my ($face, $info) = each %$faces) {
		2514	next unless $info->{smooth};
		2515	my $idx = cf::face::find $face
		2516	or next;
		2517	if (my $smooth = cf::face::find $info->{smooth}) {
		2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2519	} else {
		2520	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2521	}
		2522	Coro::cede;
		2523	}
		2524	}
		2525
		2526	{
		2527	my $anims = $facedata->{animinfo};
		2528
		2529	while (my ($anim, $info) = each %$anims) {
		2530	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2531	Coro::cede;
		2532	}
		2533
		2534	cf::anim::invalidate_all; # d'oh
		2535	}
		2536
		2537	1
		2538	}
		2539
		2540	sub reload_regions {
		2541	load_resource_file "$MAPDIR/regions"
		2542	or die "unable to load regions file\n";
		2543	}
		2544
		2545	sub reload_facedata {
		2546	load_facedata "$DATADIR/facedata"
		2547	or die "unable to load facedata\n";
		2548	}
		2549
		2550	sub reload_archetypes {
		2551	load_resource_file "$DATADIR/archetypes"
		2552	or die "unable to load archetypes\n";
		2553	}
		2554
		2555	sub reload_treasures {
		2556	load_resource_file "$DATADIR/treasures"
		2557	or die "unable to load treasurelists\n";
		2558	}
		2559
		2560	sub reload_resources {
		2561	warn "reloading resource files...\n";
		2562
		2563	reload_regions;
		2564	reload_facedata;
		2565	reload_archetypes;
		2566	reload_treasures;
		2567
		2568	warn "finished reloading resource files\n";
		2569	}
		2570
		2571	sub init {
		2572	reload_resources;
		2573	}
1837		2574
1838	sub cfg_load {	2575	sub cfg_load {
1839	open my $fh, "<:utf8", cf::confdir . "/config"	2576	open my $fh, "<:utf8", "$CONFDIR/config"
1840	or return;	2577	or return;
1841		2578
1842	local $/;	2579	local $/;
1843	*CFG = YAML::Syck::Load <$fh>;	2580	*CFG = YAML::Syck::Load <$fh>;
		2581
		2582	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2583
		2584	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2585	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2586
		2587	if (exists $CFG{mlockall}) {
		2588	eval {
		2589	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2590	and die "WARNING: m(un)lockall failed: $!\n";
		2591	};
		2592	warn $@ if $@;
		2593	}
1844	}	2594	}
1845		2595
1846	sub main {	2596	sub main {
1847	# we must not ever block the main coroutine	2597	# we must not ever block the main coroutine
1848	local $Coro::idle = sub {	2598	local $Coro::idle = sub {
1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2599	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1850	(Coro::unblock_sub {	2600	(async {
1851	Event::one_event;	2601	Event::one_event;
1852	})->();	2602	})->prio (Coro::PRIO_MAX);
1853	};	2603	};
1854		2604
1855	cfg_load;	2605	cfg_load;
1856	db_load;	2606	db_init;
1857	load_extensions;	2607	load_extensions;
		2608
		2609	$TICK_WATCHER->start;
1858	Event::loop;	2610	Event::loop;
1859	}	2611	}
1860		2612
1861	#############################################################################	2613	#############################################################################
1862	# initialisation	2614	# initialisation and cleanup
1863		2615
		2616	# install some emergency cleanup handlers
		2617	BEGIN {
		2618	for my $signal (qw(INT HUP TERM)) {
		2619	Event->signal (
		2620	reentrant => 0,
		2621	data => WF_AUTOCANCEL,
		2622	signal => $signal,
		2623	prio => 0,
		2624	cb => sub {
		2625	cf::cleanup "SIG$signal";
		2626	},
		2627	);
		2628	}
		2629	}
		2630
		2631	sub emergency_save() {
		2632	my $freeze_guard = cf::freeze_mainloop;
		2633
		2634	warn "enter emergency perl save\n";
		2635
		2636	cf::sync_job {
		2637	# use a peculiar iteration method to avoid tripping on perl
		2638	# refcount bugs in for. also avoids problems with players
		2639	# and maps saved/destroyed asynchronously.
		2640	warn "begin emergency player save\n";
		2641	for my $login (keys %cf::PLAYER) {
		2642	my $pl = $cf::PLAYER{$login} or next;
		2643	$pl->valid or next;
		2644	$pl->save;
		2645	}
		2646	warn "end emergency player save\n";
		2647
		2648	warn "begin emergency map save\n";
		2649	for my $path (keys %cf::MAP) {
		2650	my $map = $cf::MAP{$path} or next;
		2651	$map->valid or next;
		2652	$map->save;
		2653	}
		2654	warn "end emergency map save\n";
		2655
		2656	warn "begin emergency database checkpoint\n";
		2657	BDB::db_env_txn_checkpoint $DB_ENV;
		2658	warn "end emergency database checkpoint\n";
		2659	};
		2660
		2661	warn "leave emergency perl save\n";
		2662	}
		2663
		2664	sub post_cleanup {
		2665	my ($make_core) = @_;
		2666
		2667	warn Carp::longmess "post_cleanup backtrace"
		2668	if $make_core;
		2669	}
		2670
1864	sub reload() {	2671	sub do_reload_perl() {
1865	# can/must only be called in main	2672	# can/must only be called in main
1866	if ($Coro::current != $Coro::main) {	2673	if ($Coro::current != $Coro::main) {
1867	warn "can only reload from main coroutine\n";	2674	warn "can only reload from main coroutine";
1868	return;	2675	return;
1869	}	2676	}
1870		2677
1871	warn "reloading...";	2678	warn "reloading...";
1872		2679
1873	local $FREEZE = 1;	2680	warn "entering sync_job";
		2681
		2682	cf::sync_job {
		2683	cf::write_runtime; # external watchdog should not bark
1874	cf::emergency_save;	2684	cf::emergency_save;
		2685	cf::write_runtime; # external watchdog should not bark
1875		2686
1876	eval {	2687	warn "syncing database to disk";
		2688	BDB::db_env_txn_checkpoint $DB_ENV;
		2689
1877	# if anything goes wrong in here, we should simply crash as we already saved	2690	# if anything goes wrong in here, we should simply crash as we already saved
1878		2691
1879	# cancel all watchers	2692	warn "cancelling all WF_AUTOCANCEL watchers";
1880	for (Event::all_watchers) {	2693	for (Event::all_watchers) {
1881	$_->cancel if $_->data & WF_AUTOCANCEL;	2694	$_->cancel if $_->data & WF_AUTOCANCEL;
1882	}	2695	}
1883		2696
		2697	warn "flushing outstanding aio requests";
		2698	for (;;) {
		2699	BDB::flush;
		2700	IO::AIO::flush;
		2701	Coro::cede;
		2702	last unless IO::AIO::nreqs || BDB::nreqs;
		2703	warn "iterate...";
		2704	}
		2705
		2706	++$RELOAD;
		2707
1884	# cancel all extension coros	2708	warn "cancelling all extension coros";
1885	$_->cancel for values %EXT_CORO;	2709	$_->cancel for values %EXT_CORO;
1886	%EXT_CORO = ();	2710	%EXT_CORO = ();
1887		2711
1888	# unload all extensions	2712	warn "removing commands";
1889	for (@exts) {	2713	%COMMAND = ();
		2714
		2715	warn "removing ext commands";
		2716	%EXTCMD = ();
		2717
		2718	warn "unloading/nuking all extensions";
		2719	for my $pkg (@EXTS) {
1890	warn "unloading <$_>";	2720	warn "... unloading $pkg";
1891	unload_extension $_;	2721
		2722	if (my $cb = $pkg->can ("unload")) {
		2723	eval {
		2724	$cb->($pkg);
		2725	1
		2726	} or warn "$pkg unloaded, but with errors: $@";
1892	}	2727	}
1893		2728
		2729	warn "... nuking $pkg";
		2730	Symbol::delete_package $pkg;
		2731	}
		2732
1894	# unload all modules loaded from $LIBDIR	2733	warn "unloading all perl modules loaded from $LIBDIR";
1895	while (my ($k, $v) = each %INC) {	2734	while (my ($k, $v) = each %INC) {
1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2735	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1897		2736
1898	warn "removing <$k>";	2737	warn "... unloading $k";
1899	delete $INC{$k};	2738	delete $INC{$k};
1900		2739
1901	$k =~ s/\.pm$//;	2740	$k =~ s/\.pm$//;
1902	$k =~ s/\//::/g;	2741	$k =~ s/\//::/g;
1903		2742
…		…
1906	}	2745	}
1907		2746
1908	Symbol::delete_package $k;	2747	Symbol::delete_package $k;
1909	}	2748	}
1910		2749
1911	# sync database to disk
1912	cf::db_sync;
1913	IO::AIO::flush;
1914
1915	# get rid of safe::, as good as possible	2750	warn "getting rid of safe::, as good as possible";
1916	Symbol::delete_package "safe::$_"	2751	Symbol::delete_package "safe::$_"
1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2752	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1918		2753
1919	# remove register_script_function callbacks
1920	# TODO
1921
1922	# unload cf.pm "a bit"	2754	warn "unloading cf.pm \"a bit\"";
1923	delete $INC{"cf.pm"};	2755	delete $INC{"cf.pm"};
		2756	delete $INC{"cf/pod.pm"};
1924		2757
1925	# don't, removes xs symbols, too,	2758	# don't, removes xs symbols, too,
1926	# and global variables created in xs	2759	# and global variables created in xs
1927	#Symbol::delete_package __PACKAGE__;	2760	#Symbol::delete_package __PACKAGE__;
1928		2761
1929	# reload cf.pm	2762	warn "unload completed, starting to reload now";
		2763
1930	warn "reloading cf.pm";	2764	warn "reloading cf.pm";
1931	require cf;	2765	require cf;
1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2766	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1933		2767
1934	# load config and database again	2768	warn "loading config and database again";
1935	cf::cfg_load;	2769	cf::cfg_load;
1936	cf::db_load;
1937		2770
1938	# load extensions
1939	warn "load extensions";	2771	warn "loading extensions";
1940	cf::load_extensions;	2772	cf::load_extensions;
1941		2773
1942	# reattach attachments to objects	2774	warn "reattaching attachments to objects/players";
1943	warn "reattach";	2775	_global_reattach; # objects, sockets
1944	_global_reattach;	2776	warn "reattaching attachments to maps";
1945	};	2777	reattach $_ for values %MAP;
		2778	warn "reattaching attachments to players";
		2779	reattach $_ for values %PLAYER;
1946		2780
1947	if ($@) {	2781	warn "leaving sync_job";
		2782
		2783	1
		2784	} or do {
1948	warn $@;	2785	warn $@;
1949	warn "error while reloading, exiting.";	2786	warn "error while reloading, exiting.";
1950	exit 1;	2787	exit 1;
1951	}	2788	};
1952		2789
1953	warn "reloaded successfully";	2790	warn "reloaded";
1954	};	2791	};
1955		2792
1956	#############################################################################	2793	our $RELOAD_WATCHER; # used only during reload
1957		2794
1958	unless ($LINK_MAP) {	2795	sub reload_perl() {
1959	$LINK_MAP = cf::map::new;	2796	# doing reload synchronously and two reloads happen back-to-back,
		2797	# coro crashes during coro_state_free->destroy here.
1960		2798
1961	$LINK_MAP->width (41);	2799	$RELOAD_WATCHER ||= Event->timer (
1962	$LINK_MAP->height (41);	2800	reentrant => 0,
1963	$LINK_MAP->alloc;
1964	$LINK_MAP->path ("{link}");
1965	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1966	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1967
1968	# dirty hack because... archetypes are not yet loaded
1969	Event->timer (
1970	after => 2,	2801	after => 0,
		2802	data => WF_AUTOCANCEL,
1971	cb => sub {	2803	cb => sub {
1972	$_[0]->w->cancel;	2804	do_reload_perl;
1973		2805	undef $RELOAD_WATCHER;
1974	# provide some exits "home"
1975	my $exit = cf::object::new "exit";
1976
1977	$exit->slaying ($EMERGENCY_POSITION->[0]);
1978	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1979	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1980
1981	$LINK_MAP->insert ($exit->clone, 19, 19);
1982	$LINK_MAP->insert ($exit->clone, 19, 20);
1983	$LINK_MAP->insert ($exit->clone, 19, 21);
1984	$LINK_MAP->insert ($exit->clone, 20, 19);
1985	$LINK_MAP->insert ($exit->clone, 20, 21);
1986	$LINK_MAP->insert ($exit->clone, 21, 19);
1987	$LINK_MAP->insert ($exit->clone, 21, 20);
1988	$LINK_MAP->insert ($exit->clone, 21, 21);
1989
1990	$exit->destroy;
1991	});	2806	},
1992		2807	);
1993	$LINK_MAP->{deny_save} = 1;
1994	$LINK_MAP->{deny_reset} = 1;
1995
1996	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1997	}	2808	}
1998
1999	register "<global>", __PACKAGE__;
2000		2809
2001	register_command "reload" => sub {	2810	register_command "reload" => sub {
2002	my ($who, $arg) = @_;	2811	my ($who, $arg) = @_;
2003		2812
2004	if ($who->flag (FLAG_WIZ)) {	2813	if ($who->flag (FLAG_WIZ)) {
2005	$who->message ("start of reload.");
2006	reload;
2007	$who->message ("end of reload.");	2814	$who->message ("reloading server.");
		2815	async { reload_perl };
2008	}	2816	}
2009	};	2817	};
2010		2818
2011	unshift @INC, $LIBDIR;	2819	unshift @INC, $LIBDIR;
2012		2820
		2821	my $bug_warning = 0;
		2822
		2823	our @WAIT_FOR_TICK;
		2824	our @WAIT_FOR_TICK_BEGIN;
		2825
		2826	sub wait_for_tick {
		2827	return unless $TICK_WATCHER->is_active;
		2828	return if $Coro::current == $Coro::main;
		2829
		2830	my $signal = new Coro::Signal;
		2831	push @WAIT_FOR_TICK, $signal;
		2832	$signal->wait;
		2833	}
		2834
		2835	sub wait_for_tick_begin {
		2836	return unless $TICK_WATCHER->is_active;
		2837	return if $Coro::current == $Coro::main;
		2838
		2839	my $signal = new Coro::Signal;
		2840	push @WAIT_FOR_TICK_BEGIN, $signal;
		2841	$signal->wait;
		2842	}
		2843
		2844	my $min = 1e6;#d#
		2845	my $avg = 10;
2013	$TICK_WATCHER = Event->timer (	2846	$TICK_WATCHER = Event->timer (
2014	reentrant => 0,	2847	reentrant => 0,
		2848	parked => 1,
2015	prio => 0,	2849	prio => 0,
2016	at => $NEXT_TICK || $TICK,	2850	at => $NEXT_TICK || $TICK,
2017	data => WF_AUTOCANCEL,	2851	data => WF_AUTOCANCEL,
2018	cb => sub {	2852	cb => sub {
2019	unless ($FREEZE) {	2853	if ($Coro::current != $Coro::main) {
		2854	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2855	unless ++$bug_warning > 10;
		2856	return;
		2857	}
		2858
		2859	$NOW = $tick_start = Event::time;
		2860
2020	cf::server_tick; # one server iteration	2861	cf::server_tick; # one server iteration
2021	$RUNTIME += $TICK;	2862
		2863	0 && sync_job {#d#
		2864	for(1..10) {
		2865	my $t = Event::time;
		2866	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2867	or die;
		2868
		2869	$map->width (50);
		2870	$map->height (50);
		2871	$map->alloc;
		2872	$map->_load_objects ("/tmp/x.map", 1);
		2873	my $t = Event::time - $t;
		2874
		2875	#next unless $t < 0.0013;#d#
		2876	if ($t < $min) {
		2877	$min = $t;
		2878	}
		2879	$avg = $avg * 0.99 + $t * 0.01;
		2880	}
		2881	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2882	exit 0;
		2883	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2022	}	2884	};
2023		2885
		2886	$RUNTIME += $TICK;
2024	$NEXT_TICK += $TICK;	2887	$NEXT_TICK += $TICK;
2025		2888
		2889	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2890	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2891	Coro::async_pool {
		2892	write_runtime
		2893	or warn "ERROR: unable to write runtime file: $!";
		2894	};
		2895	}
		2896
		2897	# my $AFTER = Event::time;
		2898	# warn $AFTER - $NOW;#d#
		2899
		2900	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2901	$sig->send;
		2902	}
		2903	while (my $sig = shift @WAIT_FOR_TICK) {
		2904	$sig->send;
		2905	}
		2906
		2907	$NOW = Event::time;
		2908
2026	# if we are delayed by four ticks or more, skip them all	2909	# if we are delayed by four ticks or more, skip them all
2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2910	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2028		2911
2029	$TICK_WATCHER->at ($NEXT_TICK);	2912	$TICK_WATCHER->at ($NEXT_TICK);
2030	$TICK_WATCHER->start;	2913	$TICK_WATCHER->start;
		2914
		2915	$LOAD = ($NOW - $tick_start) / $TICK;
		2916	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2917
		2918	_post_tick;
		2919
		2920
2031	},	2921	},
2032	);	2922	);
2033		2923
		2924	{
2034	IO::AIO::max_poll_time $TICK * 0.2;	2925	BDB::max_poll_time $TICK * 0.1;
2035		2926	$BDB_POLL_WATCHER = Event->io (
2036	Event->io (	2927	reentrant => 0,
2037	fd => IO::AIO::poll_fileno,	2928	fd => BDB::poll_fileno,
2038	poll => 'r',	2929	poll => 'r',
2039	prio => 5,	2930	prio => 0,
2040	data => WF_AUTOCANCEL,
2041	cb => \&IO::AIO::poll_cb,
2042	);
2043
2044	Event->timer (
2045	data => WF_AUTOCANCEL,	2931	data => WF_AUTOCANCEL,
2046	after => 0,	2932	cb => \&BDB::poll_cb,
2047	interval => 10,	2933	);
2048	cb => sub {	2934	BDB::min_parallel 8;
2049	(Coro::unblock_sub {	2935
2050	write_runtime	2936	BDB::set_sync_prepare {
2051	or warn "ERROR: unable to write runtime file: $!";	2937	my $status;
		2938	my $current = $Coro::current;
		2939	(
		2940	sub {
		2941	$status = $!;
		2942	$current->ready; undef $current;
		2943	},
		2944	sub {
		2945	Coro::schedule while defined $current;
		2946	$! = $status;
		2947	},
		2948	)
		2949	};
		2950
		2951	unless ($DB_ENV) {
		2952	$DB_ENV = BDB::db_env_create;
		2953
		2954	cf::sync_job {
		2955	eval {
		2956	BDB::db_env_open
		2957	$DB_ENV,
		2958	$BDBDIR,
		2959	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2960	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2961	0666;
		2962
		2963	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2964
		2965	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2966	$DB_ENV->set_lk_detect;
		2967	};
		2968
		2969	cf::cleanup "db_env_open(db): $@" if $@;
2052	})->();	2970	};
2053	},	2971	}
2054	);	2972	}
		2973
		2974	{
		2975	IO::AIO::min_parallel 8;
		2976
		2977	undef $Coro::AIO::WATCHER;
		2978	IO::AIO::max_poll_time $TICK * 0.1;
		2979	$AIO_POLL_WATCHER = Event->io (
		2980	reentrant => 0,
		2981	data => WF_AUTOCANCEL,
		2982	fd => IO::AIO::poll_fileno,
		2983	poll => 'r',
		2984	prio => 6,
		2985	cb => \&IO::AIO::poll_cb,
		2986	);
		2987	}
		2988
		2989	my $_log_backtrace;
		2990
		2991	sub _log_backtrace {
		2992	my ($msg, @addr) = @_;
		2993
		2994	$msg =~ s/\n//;
		2995
		2996	# limit the # of concurrent backtraces
		2997	if ($_log_backtrace < 2) {
		2998	++$_log_backtrace;
		2999	async {
		3000	my @bt = fork_call {
		3001	@addr = map { sprintf "%x", $_ } @addr;
		3002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3004	or die "addr2line: $!";
		3005
		3006	my @funcs;
		3007	my @res = <$fh>;
		3008	chomp for @res;
		3009	while (@res) {
		3010	my ($func, $line) = splice @res, 0, 2, ();
		3011	push @funcs, "[$func] $line";
		3012	}
		3013
		3014	@funcs
		3015	};
		3016
		3017	LOG llevInfo, "[ABT] $msg\n";
		3018	LOG llevInfo, "[ABT] $_\n" for @bt;
		3019	--$_log_backtrace;
		3020	};
		3021	} else {
		3022	LOG llevInfo, "[ABT] $msg\n";
		3023	LOG llevInfo, "[ABT] [suppressed]\n";
		3024	}
		3025	}
		3026
		3027	# load additional modules
		3028	use cf::pod;
		3029
		3030	END { cf::emergency_save }
2055		3031
2056	1	3032	1
2057		3033

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