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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 1.275 by root, Thu Jun 7 19:12:22 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available	112	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		113
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	114	sub cf::map::normalise;
78		115
79	#############################################################################	116	#############################################################################
80		117
81	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
82		119
…		…
89	=item $cf::RUNTIME	126	=item $cf::RUNTIME
90		127
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	129	every server tick.
93		130
94	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		134
96	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
98		139
99	=item $cf::NOW	140	=item $cf::NOW
100		141
101	The time of the last (current) server tick.	142	The time of the last (current) server tick.
102		143
103	=item $cf::TICK	144	=item $cf::TICK
104		145
105	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
106		157
107	=item %cf::CFG	158	=item %cf::CFG
108		159
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		168
112	=back	169	=back
113		170
114	=cut	171	=cut
115		172
116	BEGIN {	173	BEGIN {
117	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	175	my $msg = join "", @_;
119	utf8::encode $msg;
120		176
121	$msg .= "\n"	177	$msg .= "\n"
122	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
123		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
125	};	184	};
126	}	185	}
127		186
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		194
135	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	196	# within the Safe compartment.
137	for my $pkg (qw(	197	for my $pkg (qw(
138	cf::global cf::attachable	198	cf::global cf::attachable
…		…
147		207
148	$Event::DIED = sub {	208	$Event::DIED = sub {
149	warn "error in event callback: @_";	209	warn "error in event callback: @_";
150	};	210	};
151		211
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
157		213
158	=over 4	214	=over 4
159		215
160	=cut	216	=item dumpval $ref
161		217
		218	=cut
		219
		220	sub dumpval {
		221	eval {
		222	local $SIG{__DIE__};
		223	my $d;
		224	if (1) {
		225	$d = new Data::Dumper([$_[0]], ["*var"]);
		226	$d->Terse(1);
		227	$d->Indent(2);
		228	$d->Quotekeys(0);
		229	$d->Useqq(1);
		230	#$d->Bless(...);
		231	$d->Seen($_[1]) if @_ > 1;
		232	$d = $d->Dump();
		233	}
		234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		235	$d
		236	} || "[unable to dump $_[0]: '$@']";
		237	}
		238
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		240
164	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
165		242
166	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
167		244
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
176		246
177	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
178		248
179	=cut	249	=item cf::lock_wait $string
180		250
181	sub to_json($) {	251	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	252
183	JSON::Syck::Dump $_[0]	253	=item my $lock = cf::lock_acquire $string
		254
		255	Wait until the given lock is available and then acquires it and returns
		256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		257	for example when the coroutine gets canceled), the lock is automatically
		258	returned.
		259
		260	Lock names should begin with a unique identifier (for example, cf::map::find
		261	uses map_find and cf::map::load uses map_load).
		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
		267	=cut
		268
		269	our %LOCK;
		270
		271	sub lock_wait($) {
		272	my ($key) = @_;
		273
		274	# wait for lock, if any
		275	while ($LOCK{$key}) {
		276	push @{ $LOCK{$key} }, $Coro::current;
		277	Coro::schedule;
		278	}
184	}	279	}
		280
		281	sub lock_acquire($) {
		282	my ($key) = @_;
		283
		284	# wait, to be sure we are not locked
		285	lock_wait $key;
		286
		287	$LOCK{$key} = [];
		288
		289	Coro::guard {
		290	# wake up all waiters, to be on the safe side
		291	$_->ready for @{ delete $LOCK{$key} };
		292	}
		293	}
		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
		301	sub freeze_mainloop {
		302	return unless $TICK_WATCHER->is_active;
		303
		304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
		307	$TICK_WATCHER->stop;
		308	$guard
		309	}
		310
		311	=item cf::async { BLOCK }
		312
		313	Currently the same as Coro::async_pool, meaning you cannot use
		314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		315	thing you are allowed to do is call C<prio> on it.
		316
		317	=cut
		318
		319	BEGIN { *async = \&Coro::async_pool }
185		320
186	=item cf::sync_job { BLOCK }	321	=item cf::sync_job { BLOCK }
187		322
188	The design of crossfire+ requires that the main coro ($Coro::main) is	323	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	324	always able to handle events or runnable, as crossfire+ is only partly
…		…
198		333
199	sub sync_job(&) {	334	sub sync_job(&) {
200	my ($job) = @_;	335	my ($job) = @_;
201		336
202	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
203	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
205		342
206	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	344	# (but this is cancel-safe)
208	local $FREEZE = 1;	345	my $freeze_guard = freeze_mainloop;
209		346
210	my $busy = 1;	347	my $busy = 1;
211	my @res;	348	my @res;
212		349
213	(Coro::async {	350	(async {
214	@res = eval { $job->() };	351	@res = eval { $job->() };
215	warn $@ if $@;	352	warn $@ if $@;
216	undef $busy;	353	undef $busy;
217	})->prio (Coro::PRIO_MAX);	354	})->prio (Coro::PRIO_MAX);
218		355
219	while ($busy) {	356	while ($busy) {
220	Coro::cede_notself;	357	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	358	}
		359
		360	$time = Event::time - $time;
		361
		362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		364
		365	$tick_start += $time; # do not account sync jobs to server load
223		366
224	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
225	} else {	368	} else {
226	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
227		370
228	$job->()	371	$job->()
229	}	372	}
230	}	373	}
231		374
232	=item $coro = cf::coro { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
233		376
234	Creates and returns a new coro. This coro is automcatially being canceled	377	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	378	extension calling this is being unloaded.
236		379
237	=cut	380	=cut
238		381
239	sub coro(&) {	382	sub async_ext(&) {
240	my $cb = shift;	383	my $cb = shift;
241		384
242	my $coro; $coro = async {	385	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		386
249	$coro->on_destroy (sub {	387	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	388	delete $EXT_CORO{$coro+0};
251	});	389	});
252	$EXT_CORO{$coro+0} = $coro;	390	$EXT_CORO{$coro+0} = $coro;
253		391
254	$coro	392	$coro
255	}	393	}
256		394
257	sub write_runtime {	395	sub write_runtime {
258	my $runtime = cf::localdir . "/runtime";	396	my $runtime = "$LOCALDIR/runtime";
		397
		398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
		403	my $guard = cf::lock_acquire "write_runtime";
259		404
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	406	or return;
262		407
		408	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	413	and return;
266		414
		415	# always fsync - this file is important
267	aio_fsync $fh	416	aio_fsync $fh
268	and return;	417	and return;
269		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
270	close $fh	422	close $fh
271	or return;	423	or return;
272		424
273	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
274	and return;	426	and return;
275		427
		428	warn "runtime file written.\n";
		429
276	1	430	1
277	}	431	}
278		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
279	=back	444	=back
280		445
281	=cut	446	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392		447
393	#############################################################################	448	#############################################################################
394		449
395	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
396		451
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	578	our @CB_MAP = ();
524		579
525	my %attachment;	580	my %attachment;
526		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
527	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
529		590
530	use sort 'stable';	591	use sort 'stable';
531		592
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
566		627
567	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		632
572	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	634	my $pkg = shift @arg;
574		635
575	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
616	if (ref $_[0]) {	677	if (ref $_[0]) {
617	_object_attach @_;	678	_object_attach @_;
618	} else {	679	} else {
619	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
620	}	681	}
		682	_recalc_want;
621	};	683	};
622		684
623	# all those should be optimised	685	# all those should be optimised
624	sub cf::attachable::detach {	686	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
629	reattach ($obj);	691	reattach ($obj);
630	} else {	692	} else {
631	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
632	}	694	}
		695	_recalc_want;
633	};	696	};
634		697
635	sub cf::attachable::attached {	698	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
637		700
…		…
702	# object support	765	# object support
703		766
704	sub reattach {	767	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		772
708	my $registry = $obj->registry;	773	my $registry = $obj->registry;
709		774
710	@$registry = ();	775	@$registry = ();
711		776
…		…
758	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
759		824
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	829	close $fh;
765		830
766	if (@$objs) {	831	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	837	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
774	}	839	}
775	} else {	840	} else {
776	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
807	(aio_load "$filename.pst", $av) >= 0	872	(aio_load "$filename.pst", $av) >= 0
808	or return;	873	or return;
809	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
810	}	875	}
811		876
		877	warn sprintf "loading %s (%d)\n",
		878	$filename, length $data, scalar @{$av || []};
812	return ($data, $av);	879	return ($data, $av);
813	}	880	}
814		881
815	#############################################################################	882	#############################################################################
816	# command handling &c	883	# command handling &c
…		…
841	=cut	908	=cut
842		909
843	sub register_extcmd {	910	sub register_extcmd {
844	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
845		912
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
850	}	914	}
851		915
852	cf::player->attach (	916	cf::player->attach (
853	on_command => sub {	917	on_command => sub {
854	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
867		931
868	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
869		933
870	if (ref $msg) {	934	if (ref $msg) {
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
873	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
874	}	938	}
875	}	939	}
876	} else {	940	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
879		943
880	cf::override;	944	cf::override;
881	},	945	},
882	);	946	);
883		947
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	948	sub load_extension {
891	my ($path) = @_;	949	my ($path) = @_;
892		950
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
894	my $base = $1;	952	my $base = $1;
895	my $pkg = $1;	953	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
898		956
899	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
900		958
901	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
902	or die "$path: $!";	960	or die "$path: $!";
903		961
904	my $source =	962	my $source =
905	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
908	. "\n};\n1";	966	. "\n};\n1";
909		967
910	eval $source	968	unless (eval $source) {
911	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
912	: "extension disabled.\n";	970	: "extension disabled.\n";
913		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
914	push @exts, $pkg;	972	warn $@;
915	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
916		974	exit 1;
917	# no strict 'refs';	975	}
918	# @{"$pkg\::ISA"} = ext::;	976	die $@;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }	977	}
933		978
934	# remove commands	979	push @EXTS, $pkg;
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}
943	}
944
945	# remove extcmds
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}	980	}
959		981
960	sub load_extensions {	982	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	984	next unless -r $ext;
…		…
966	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
967	}	989	}
968	}	990	}
969		991
970	#############################################################################	992	#############################################################################
971	# load/save/clean perl data associated with a map
972
973	*cf::mapsupport::on_clean = sub {
974	my ($map) = @_;
975
976	my $path = $map->tmpname;
977	defined $path or return;
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}
990
991	# TODO: compatibility cruft, remove when no longer needed
992	cf::player->attach (
993	on_load => sub {
994	my ($pl, $path) = @_;
995
996	for my $o (all_objects $pl->ob) {
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
998	$o->set_ob_key_value ("_perl_data");
999
1000	%$o = %{ Storable::thaw pack "H*", $value };
1001	}
1002	}
1003	},
1004	);
1005
1006	#############################################################################
1007		993
1008	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1009		995
1010	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1011		997
		998	=cut
		999
		1000	package cf::player;
		1001
		1002	use Coro::AIO;
		1003
1012	=head3 cf::player	1004	=head3 cf::player
1013		1005
1014	=over 4	1006	=over 4
1015		1007
1016	=item cf::player::exists $login	1008	=item cf::player::find $login
1017		1009
1018	Returns true when the given account exists.	1010	Returns the given player object, loading it if necessary (might block).
1019		1011
1020	=cut	1012	=cut
1021		1013
1022	sub cf::player::exists($) {	1014	sub playerdir($) {
1023	cf::player::find $_[0]	1015	"$PLAYERDIR/"
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1025	}	1017	}
1026		1018
		1019	sub path($) {
		1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1021
		1022	(playerdir $login) . "/playerdata"
		1023	}
		1024
		1025	sub find_active($) {
		1026	$cf::PLAYER{$_[0]}
		1027	and $cf::PLAYER{$_[0]}->active
		1028	and $cf::PLAYER{$_[0]}
		1029	}
		1030
		1031	sub exists($) {
		1032	my ($login) = @_;
		1033
		1034	$cf::PLAYER{$login}
		1035	or cf::sync_job { !aio_stat path $login }
		1036	}
		1037
		1038	sub find($) {
		1039	return $cf::PLAYER{$_[0]} || do {
		1040	my $login = $_[0];
		1041
		1042	my $guard = cf::lock_acquire "user_find:$login";
		1043
		1044	$cf::PLAYER{$_[0]} || do {
		1045	# rename old playerfiles to new ones
		1046	#TODO: remove when no longer required
		1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1050	aio_unlink +(playerdir $login) . "/$login.pl";
		1051
		1052	my $pl = load_pl path $login
		1053	or return;
		1054	$cf::PLAYER{$login} = $pl
		1055	}
		1056	}
		1057	}
		1058
		1059	sub save($) {
		1060	my ($pl) = @_;
		1061
		1062	return if $pl->{deny_save};
		1063
		1064	my $path = path $pl;
		1065	my $guard = cf::lock_acquire "user_save:$path";
		1066
		1067	return if $pl->{deny_save};
		1068
		1069	aio_mkdir playerdir $pl, 0770;
		1070	$pl->{last_save} = $cf::RUNTIME;
		1071
		1072	$pl->save_pl ($path);
		1073	Coro::cede;
		1074	}
		1075
		1076	sub new($) {
		1077	my ($login) = @_;
		1078
		1079	my $self = create;
		1080
		1081	$self->ob->name ($login);
		1082	$self->{deny_save} = 1;
		1083
		1084	$cf::PLAYER{$login} = $self;
		1085
		1086	$self
		1087	}
		1088
		1089	=item $pl->quit_character
		1090
		1091	Nukes the player without looking back. If logged in, the connection will
		1092	be destroyed. May block for a long time.
		1093
		1094	=cut
		1095
		1096	sub quit_character {
		1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
		1100
		1101	$pl->{deny_save} = 1;
		1102	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1103
		1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1105	$pl->deactivate;
		1106	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1107	$pl->ns->destroy if $pl->ns;
		1108
		1109	my $path = playerdir $pl;
		1110	my $temp = "$path~$cf::RUNTIME~deleting~";
		1111	aio_rename $path, $temp;
		1112	delete $cf::PLAYER{$pl->ob->name};
		1113	$pl->destroy;
		1114
		1115	my $prefix = qr<^~\Q$name\E/>;
		1116
		1117	# nuke player maps
		1118	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1119
		1120	IO::AIO::aio_rmtree $temp;
		1121	}
		1122
		1123	=item $pl->kick
		1124
		1125	Kicks a player out of the game. This destroys the connection.
		1126
		1127	=cut
		1128
		1129	sub kick {
		1130	my ($pl, $kicker) = @_;
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1133	$pl->killer ("kicked");
		1134	$pl->ns->destroy;
		1135	}
		1136
		1137	=item cf::player::list_logins
		1138
		1139	Returns am arrayref of all valid playernames in the system, can take a
		1140	while and may block, so not sync_job-capable, ever.
		1141
		1142	=cut
		1143
		1144	sub list_logins {
		1145	my $dirs = aio_readdir $PLAYERDIR
		1146	or return [];
		1147
		1148	my @logins;
		1149
		1150	for my $login (@$dirs) {
		1151	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1152	aio_read $fh, 0, 512, my $buf, 0 or next;
		1153	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1154
		1155	utf8::decode $login;
		1156	push @logins, $login;
		1157	}
		1158
		1159	\@logins
		1160	}
		1161
		1162	=item $player->maps
		1163
		1164	Returns an arrayref of map paths that are private for this
		1165	player. May block.
		1166
		1167	=cut
		1168
		1169	sub maps($) {
		1170	my ($pl) = @_;
		1171
		1172	$pl = ref $pl ? $pl->ob->name : $pl;
		1173
		1174	my $files = aio_readdir playerdir $pl
		1175	or return;
		1176
		1177	my @paths;
		1178
		1179	for (@$files) {
		1180	utf8::decode $_;
		1181	next if /\.(?:pl|pst)$/;
		1182	next unless /^$PATH_SEP/o;
		1183
		1184	push @paths, cf::map::normalise "~$pl/$_";
		1185	}
		1186
		1187	\@paths
		1188	}
		1189
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1028		1191
1029	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1030		1193
1031	=cut	1194	=cut
1032		1195
1033	sub cf::player::ext_reply($$$%) {	1196	sub ext_reply($$%) {
1034	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1035		1198
1036	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1037		1200
1038	$self->send ("ext " . to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
		1202	}
		1203
		1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		1211	my ($self, $type, %msg) = @_;
		1212
		1213	$self->ns->ext_event ($type, %msg);
		1214	}
		1215
		1216	=head3 cf::region
		1217
		1218	=over 4
		1219
		1220	=cut
		1221
		1222	package cf::region;
		1223
		1224	=item cf::region::find_by_path $path
		1225
		1226	Tries to decuce the probable region for a map knowing only its path.
		1227
		1228	=cut
		1229
		1230	sub find_by_path($) {
		1231	my ($path) = @_;
		1232
		1233	my ($match, $specificity);
		1234
		1235	for my $region (list) {
		1236	if ($region->match && $path =~ $region->match) {
		1237	($match, $specificity) = ($region, $region->specificity)
		1238	if $region->specificity > $specificity;
		1239	}
		1240	}
		1241
		1242	$match
1039	}	1243	}
1040		1244
1041	=back	1245	=back
1042
1043		1246
1044	=head3 cf::map	1247	=head3 cf::map
1045		1248
1046	=over 4	1249	=over 4
1047		1250
…		…
1050	package cf::map;	1253	package cf::map;
1051		1254
1052	use Fcntl;	1255	use Fcntl;
1053	use Coro::AIO;	1256	use Coro::AIO;
1054		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1055	our $MAX_RESET = 7200;	1262	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1263	our $DEFAULT_RESET = 3000;
1057		1264
1058	sub generate_random_map {	1265	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1268	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1277	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1279	(cf::region::find $rmp->{region}), $rmp->{custom}
		1280	)
		1281	}
		1282
		1283	=item cf::map->register ($regex, $prio)
		1284
		1285	Register a handler for the map path matching the given regex at the
		1286	givne priority (higher is better, built-in handlers have priority 0, the
		1287	default).
		1288
		1289	=cut
		1290
		1291	sub register {
		1292	my (undef, $regex, $prio) = @_;
		1293	my $pkg = caller;
		1294
		1295	no strict;
		1296	push @{"$pkg\::ISA"}, __PACKAGE__;
		1297
		1298	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1299	}
		1300
		1301	# also paths starting with '/'
		1302	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1303
		1304	sub thawer_merge {
		1305	my ($self, $merge) = @_;
		1306
		1307	# we have to keep some variables in memory intact
		1308	local $self->{path};
		1309	local $self->{load_path};
		1310
		1311	$self->SUPER::thawer_merge ($merge);
		1312	}
		1313
		1314	sub normalise {
		1315	my ($path, $base) = @_;
		1316
		1317	$path = "$path"; # make sure its a string
		1318
		1319	$path =~ s/\.map$//;
		1320
		1321	# map plan:
		1322	#
		1323	# /! non-realised random map exit (special hack!)
		1324	# {... are special paths that are not being touched
		1325	# ?xxx/... are special absolute paths
		1326	# ?random/... random maps
		1327	# /... normal maps
		1328	# ~user/... per-player map of a specific user
		1329
		1330	$path =~ s/$PATH_SEP/\//go;
		1331
		1332	# treat it as relative path if it starts with
		1333	# something that looks reasonable
		1334	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1335	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1336
		1337	$base =~ s{[^/]+/?$}{};
		1338	$path = "$base/$path";
		1339	}
		1340
		1341	for ($path) {
		1342	redo if s{//}{/};
		1343	redo if s{/\.?/}{/};
		1344	redo if s{/[^/]+/\.\./}{/};
		1345	}
		1346
		1347	$path
		1348	}
		1349
		1350	sub new_from_path {
		1351	my (undef, $path, $base) = @_;
		1352
		1353	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1354
		1355	$path = normalise $path, $base;
		1356
		1357	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1358	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1359	my $self = bless cf::map::new, $pkg;
		1360	$self->{path} = $path; $self->path ($path);
		1361	$self->init; # pass $1 etc.
		1362	return $self;
		1363	}
		1364	}
		1365
		1366	Carp::carp "unable to resolve path '$path' (base '$base').";
		1367	()
		1368	}
		1369
		1370	sub init {
		1371	my ($self) = @_;
		1372
		1373	$self
		1374	}
		1375
		1376	sub as_string {
		1377	my ($self) = @_;
		1378
		1379	"$self->{path}"
		1380	}
		1381
		1382	# the displayed name, this is a one way mapping
		1383	sub visible_name {
		1384	&as_string
		1385	}
		1386
		1387	# the original (read-only) location
		1388	sub load_path {
		1389	my ($self) = @_;
		1390
		1391	"$MAPDIR/$self->{path}.map"
		1392	}
		1393
		1394	# the temporary/swap location
		1395	sub save_path {
		1396	my ($self) = @_;
		1397
		1398	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1399	"$TMPDIR/$path.map"
		1400	}
		1401
		1402	# the unique path, undef == no special unique path
		1403	sub uniq_path {
		1404	my ($self) = @_;
		1405
		1406	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1407	"$UNIQUEDIR/$path"
1075	}	1408	}
1076		1409
1077	# and all this just because we cannot iterate over	1410	# and all this just because we cannot iterate over
1078	# all maps in C++...	1411	# all maps in C++...
1079	sub change_all_map_light {	1412	sub change_all_map_light {
1080	my ($change) = @_;	1413	my ($change) = @_;
1081		1414
1082	$_->change_map_light ($change) for values %cf::MAP;	1415	$_->change_map_light ($change)
		1416	for grep $_->outdoor, values %cf::MAP;
1083	}	1417	}
1084		1418
		1419	sub decay_objects {
		1420	my ($self) = @_;
		1421
		1422	return if $self->{deny_reset};
		1423
		1424	$self->do_decay_objects;
		1425	}
		1426
		1427	sub unlink_save {
		1428	my ($self) = @_;
		1429
		1430	utf8::encode (my $save = $self->save_path);
		1431	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1432	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1433	}
		1434
1085	sub try_load_header($) {	1435	sub load_header_from($) {
1086	my ($path) = @_;	1436	my ($self, $path) = @_;
1087		1437
1088	utf8::encode $path;	1438	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1439	#aio_open $path, O_RDONLY, 0
		1440	# or return;
		1441
		1442	$self->_load_header ($path)
1090	or return;	1443	or return;
1091		1444
1092	my $map = cf::map::new	1445	$self->{load_path} = $path;
		1446
		1447	1
		1448	}
		1449
		1450	sub load_header_orig {
		1451	my ($self) = @_;
		1452
		1453	$self->load_header_from ($self->load_path)
		1454	}
		1455
		1456	sub load_header_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->load_header_from ($self->save_path)
		1460	}
		1461
		1462	sub prepare_temp {
		1463	my ($self) = @_;
		1464
		1465	$self->last_access ((delete $self->{last_access})
		1466	|| $cf::RUNTIME); #d#
		1467	# safety
		1468	$self->{instantiate_time} = $cf::RUNTIME
		1469	if $self->{instantiate_time} > $cf::RUNTIME;
		1470	}
		1471
		1472	sub prepare_orig {
		1473	my ($self) = @_;
		1474
		1475	$self->{load_original} = 1;
		1476	$self->{instantiate_time} = $cf::RUNTIME;
		1477	$self->last_access ($cf::RUNTIME);
		1478	$self->instantiate;
		1479	}
		1480
		1481	sub load_header {
		1482	my ($self) = @_;
		1483
		1484	if ($self->load_header_temp) {
		1485	$self->prepare_temp;
		1486	} else {
		1487	$self->load_header_orig
1093	or return;	1488	or return;
		1489	$self->prepare_orig;
		1490	}
1094		1491
1095	$map->load_header ($path)	1492	$self->{deny_reset} = 1
1096	or return;	1493	if $self->no_reset;
1097		1494
1098	$map->{load_path} = $path;	1495	$self->default_region (cf::region::find_by_path $self->{path})
		1496	unless $self->default_region;
1099		1497
1100	$map	1498	1
1101	}	1499	}
1102		1500
		1501	sub find;
1103	sub find_map {	1502	sub find {
1104	my ($path, $origin) = @_;	1503	my ($path, $origin) = @_;
1105		1504
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1505	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1506
		1507	cf::lock_wait "map_find:$path";
		1508
1111	$cf::MAP{$key} || do {	1509	$cf::MAP{$path} || do {
1112	# do it the slow way	1510	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1511	my $map = new_from_path cf::map $path
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	1512	or return;
1127		1513
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	1514	$map->{last_save} = $cf::RUNTIME;
1139		1515
1140	if ($map->should_reset) {	1516	$map->load_header
		1517	or return;
		1518
		1519	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1520	# doing this can freeze the server in a sync job, obviously
		1521	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1522	$map->reset;
1142	$map = find_map $path;	1523	undef $guard;
		1524	return find $path;
1143	}	1525	}
1144		1526
1145	$cf::MAP{$key} = $map	1527	$cf::MAP{$path} = $map
1146	}	1528	}
1147	}	1529	}
		1530
		1531	sub pre_load { }
		1532	sub post_load { }
1148		1533
1149	sub load {	1534	sub load {
1150	my ($self) = @_;	1535	my ($self) = @_;
1151		1536
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1537	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		1538
1156	my $path = $self->{path};	1539	my $path = $self->{path};
1157		1540
		1541	{
		1542	my $guard = cf::lock_acquire "map_load:$path";
		1543
		1544	return if $self->in_memory != cf::MAP_SWAPPED;
		1545
		1546	$self->in_memory (cf::MAP_LOADING);
		1547
1158	$self->alloc;	1548	$self->alloc;
		1549
		1550	$self->pre_load;
		1551	Coro::cede;
		1552
1159	$self->load_objects ($self->{load_path}, 1)	1553	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1554	or return;
1161		1555
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1557	if delete $self->{load_original};
1164		1558
1165	if (my $uniq = $path->uniq_path) {	1559	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1560	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1561	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1562	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1563	$self->_load_objects ($uniq, 0);
1170	}	1564	}
1171	}	1565	}
1172		1566
		1567	Coro::cede;
1173	# now do the right thing for maps	1568	# now do the right thing for maps
1174	$self->link_multipart_objects;	1569	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1570	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1571	unless $self->difficulty;
		1572	Coro::cede;
		1573
		1574	unless ($self->{deny_activate}) {
		1575	$self->decay_objects;
		1576	$self->fix_auto_apply;
		1577	$self->update_buttons;
		1578	Coro::cede;
		1579	$self->set_darkness_map;
		1580	Coro::cede;
1186	$self->activate;	1581	$self->activate;
1187	}	1582	}
1188		1583
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1584	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1585	}
1191		1586
1192	sub load_map_sync {	1587	$self->post_load;
		1588	}
		1589
		1590	sub customise_for {
		1591	my ($self, $ob) = @_;
		1592
		1593	return find "~" . $ob->name . "/" . $self->{path}
		1594	if $self->per_player;
		1595
		1596	# return find "?party/" . $ob->name . "/" . $self->{path}
		1597	# if $self->per_party;
		1598
		1599	$self
		1600	}
		1601
		1602	# find and load all maps in the 3x3 area around a map
		1603	sub load_diag {
		1604	my ($map) = @_;
		1605
		1606	my @diag; # diagonal neighbours
		1607
		1608	for (0 .. 3) {
		1609	my $neigh = $map->tile_path ($_)
		1610	or next;
		1611	$neigh = find $neigh, $map
		1612	or next;
		1613	$neigh->load;
		1614
		1615	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1616	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1617	}
		1618
		1619	for (@diag) {
		1620	my $neigh = find @$_
		1621	or next;
		1622	$neigh->load;
		1623	}
		1624	}
		1625
		1626	sub find_sync {
1193	my ($path, $origin) = @_;	1627	my ($path, $origin) = @_;
1194		1628
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1629	cf::sync_job { find $path, $origin }
		1630	}
1196		1631
1197	cf::sync_job {	1632	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1633	my ($map) = @_;
1199	or return;	1634
		1635	cf::sync_job { $map->load };
		1636	}
		1637
		1638	our %MAP_PREFETCH;
		1639	our $MAP_PREFETCHER = undef;
		1640
		1641	sub find_async {
		1642	my ($path, $origin) = @_;
		1643
		1644	$path = normalise $path, $origin && $origin->{path};
		1645
		1646	if (my $map = $cf::MAP{$path}) {
		1647	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1648	}
		1649
		1650	undef $MAP_PREFETCH{$path};
		1651	$MAP_PREFETCHER ||= cf::async {
		1652	while (%MAP_PREFETCH) {
		1653	for my $path (keys %MAP_PREFETCH) {
		1654	my $map = find $path
		1655	or next;
1200	$map->load;	1656	$map->load;
1201	$map	1657
		1658	delete $MAP_PREFETCH{$path};
		1659	}
		1660	}
		1661	undef $MAP_PREFETCHER;
1202	}	1662	};
		1663	$MAP_PREFETCHER->prio (6);
		1664
		1665	()
1203	}	1666	}
1204		1667
1205	sub save {	1668	sub save {
1206	my ($self) = @_;	1669	my ($self) = @_;
1207		1670
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1671	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1672
1211	$self->{last_save} = $cf::RUNTIME;	1673	$self->{last_save} = $cf::RUNTIME;
1212		1674
1213	return unless $self->dirty;	1675	return unless $self->dirty;
1214		1676
		1677	my $save = $self->save_path; utf8::encode $save;
		1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1679
1215	$self->{load_path} = $save;	1680	$self->{load_path} = $save;
1216		1681
1217	return if $self->{deny_save};	1682	return if $self->{deny_save};
1218		1683
		1684	local $self->{last_access} = $self->last_access;#d#
		1685
		1686	cf::async {
		1687	$_->contr->save for $self->players;
		1688	};
		1689
1219	if ($uniq) {	1690	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1691	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1692	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1693	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1694	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1695	}
1225	}	1696	}
1226		1697
1227	sub swap_out {	1698	sub swap_out {
1228	my ($self) = @_;	1699	my ($self) = @_;
		1700
		1701	# save first because save cedes
		1702	$self->save;
		1703
		1704	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1705
1230	return if $self->players;	1706	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1707	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1708	return if $self->{deny_save};
1233		1709
1234	$self->save;
1235	$self->clear;	1710	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1711	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1712	}
1238		1713
1239	sub reset_at {	1714	sub reset_at {
1240	my ($self) = @_;	1715	my ($self) = @_;
1241		1716
1242	# TODO: safety, remove and allow resettable per-player maps	1717	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	1718	return 1e99 if $self->{deny_reset};
1245		1719
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1720	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1721	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1722
1250	$time + $to	1723	$time + $to
1251	}	1724	}
1252		1725
1253	sub should_reset {	1726	sub should_reset {
1254	my ($self) = @_;	1727	my ($self) = @_;
1255		1728
1256	$self->reset_at <= $cf::RUNTIME	1729	$self->reset_at <= $cf::RUNTIME
1257	}	1730	}
1258		1731
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub 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	$self->save;
1278	}
1279
1280	sub reset {	1732	sub reset {
1281	my ($self) = @_;	1733	my ($self) = @_;
1282		1734
		1735	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1736
1283	return if $self->players;	1737	return if $self->players;
1284	return if $self->{path}{user_rel};#d#
1285		1738
1286	warn "resetting map ", $self->path;#d#	1739	warn "resetting map ", $self->path;
		1740
		1741	$self->in_memory (cf::MAP_SWAPPED);
		1742
		1743	# need to save uniques path
		1744	unless ($self->{deny_save}) {
		1745	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1746
		1747	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1748	if $uniq;
		1749	}
1287		1750
1288	delete $cf::MAP{$self->path};	1751	delete $cf::MAP{$self->path};
		1752
		1753	$self->clear;
1289		1754
1290	$_->clear_links_to ($self) for values %cf::MAP;	1755	$_->clear_links_to ($self) for values %cf::MAP;
1291		1756
1292	$self->unlink_save;	1757	$self->unlink_save;
1293	$self->destroy;	1758	$self->destroy;
1294	}	1759	}
1295		1760
1296	sub customise_for {	1761	my $nuke_counter = "aaaa";
1297	my ($map, $ob) = @_;
1298		1762
1299	if ($map->per_player) {	1763	sub nuke {
1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1764	my ($self) = @_;
1301	}
1302		1765
1303	$map	1766	delete $cf::MAP{$self->path};
1304	}
1305		1767
1306	sub emergency_save {	1768	$self->unlink_save;
1307	local $cf::FREEZE = 1;
1308		1769
1309	warn "enter emergency map save\n";	1770	bless $self, "cf::map";
		1771	delete $self->{deny_reset};
		1772	$self->{deny_save} = 1;
		1773	$self->reset_timeout (1);
		1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1310		1775
1311	cf::sync_job {	1776	$cf::MAP{$self->path} = $self;
1312	warn "begin emergency map save\n";	1777
1313	$_->save for values %cf::MAP;	1778	$self->reset; # polite request, might not happen
		1779	}
		1780
		1781	=item cf::map::unique_maps
		1782
		1783	Returns an arrayref of paths of all shared maps that have
		1784	instantiated unique items. May block.
		1785
		1786	=cut
		1787
		1788	sub unique_maps() {
		1789	my $files = aio_readdir $UNIQUEDIR
		1790	or return;
		1791
		1792	my @paths;
		1793
		1794	for (@$files) {
		1795	utf8::decode $_;
		1796	next if /\.pst$/;
		1797	next unless /^$PATH_SEP/o;
		1798
		1799	push @paths, cf::map::normalise $_;
1314	};	1800	}
1315		1801
1316	warn "end emergency map save\n";	1802	\@paths
1317	}	1803	}
1318		1804
1319	package cf;	1805	package cf;
1320		1806
1321	=back	1807	=back
1322		1808
		1809	=head3 cf::object
		1810
		1811	=cut
		1812
		1813	package cf::object;
		1814
		1815	=over 4
		1816
		1817	=item $ob->inv_recursive
		1818
		1819	Returns the inventory of the object _and_ their inventories, recursively.
		1820
		1821	=cut
		1822
		1823	sub inv_recursive_;
		1824	sub inv_recursive_ {
		1825	map { $_, inv_recursive_ $_->inv } @_
		1826	}
		1827
		1828	sub inv_recursive {
		1829	inv_recursive_ inv $_[0]
		1830	}
		1831
		1832	package cf;
		1833
		1834	=back
1323		1835
1324	=head3 cf::object::player	1836	=head3 cf::object::player
1325		1837
1326	=over 4	1838	=over 4
1327		1839
…		…
1363	(ref $cf::CFG{"may_$access"}	1875	(ref $cf::CFG{"may_$access"}
1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1876	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365	: $cf::CFG{"may_$access"})	1877	: $cf::CFG{"may_$access"})
1366	}	1878	}
1367		1879
		1880	=item $player_object->enter_link
		1881
		1882	Freezes the player and moves him/her to a special map (C<{link}>).
		1883
		1884	The player should be reasonably safe there for short amounts of time. You
		1885	I<MUST> call C<leave_link> as soon as possible, though.
		1886
		1887	Will never block.
		1888
		1889	=item $player_object->leave_link ($map, $x, $y)
		1890
		1891	Moves the player out of the special C<{link}> map onto the specified
		1892	map. If the map is not valid (or omitted), the player will be moved back
		1893	to the location he/she was before the call to C<enter_link>, or, if that
		1894	fails, to the emergency map position.
		1895
		1896	Might block.
		1897
		1898	=cut
		1899
		1900	sub link_map {
		1901	unless ($LINK_MAP) {
		1902	$LINK_MAP = cf::map::find "{link}"
		1903	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1904	$LINK_MAP->load;
		1905	}
		1906
		1907	$LINK_MAP
		1908	}
		1909
1368	sub cf::object::player::enter_link {	1910	sub cf::object::player::enter_link {
1369	my ($self) = @_;	1911	my ($self) = @_;
1370		1912
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;	1913	$self->deactivate_recursive;
		1914
		1915	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1916
		1917	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1918	if $self->map && $self->map->{path} ne "{link}";
		1919
		1920	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1378	}	1921	}
1379		1922
1380	sub cf::object::player::leave_link {	1923	sub cf::object::player::leave_link {
1381	my ($self, $map, $x, $y) = @_;	1924	my ($self, $map, $x, $y) = @_;
1382		1925
		1926	return unless $self->contr->active;
		1927
1383	my $link_pos = delete $self->{_link_pos};	1928	my $link_pos = delete $self->{_link_pos};
1384		1929
1385	unless ($map) {	1930	unless ($map) {
1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388	# restore original map position	1931	# restore original map position
1389	($map, $x, $y) = @{ $link_pos || [] };	1932	($map, $x, $y) = @{ $link_pos || [] };
1390	$map = cf::map::find_map $map;	1933	$map = cf::map::find $map;
1391		1934
1392	unless ($map) {	1935	unless ($map) {
1393	($map, $x, $y) = @$EMERGENCY_POSITION;	1936	($map, $x, $y) = @$EMERGENCY_POSITION;
1394	$map = cf::map::find_map $map	1937	$map = cf::map::find $map
1395	or die "FATAL: cannot load emergency map\n";	1938	or die "FATAL: cannot load emergency map\n";
1396	}	1939	}
1397	}	1940	}
1398		1941
1399	($x, $y) = (-1, -1)	1942	($x, $y) = (-1, -1)
…		…
1402	# use -1 or undef as default coordinates, not 0, 0	1945	# use -1 or undef as default coordinates, not 0, 0
1403	($x, $y) = ($map->enter_x, $map->enter_y)	1946	($x, $y) = ($map->enter_x, $map->enter_y)
1404	if $x <=0 && $y <= 0;	1947	if $x <=0 && $y <= 0;
1405		1948
1406	$map->load;	1949	$map->load;
		1950	$map->load_diag;
1407		1951
		1952	return unless $self->contr->active;
1408	$self->activate_recursive;	1953	$self->activate_recursive;
		1954
		1955	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1409	$self->enter_map ($map, $x, $y);	1956	$self->enter_map ($map, $x, $y);
1410	}	1957	}
1411		1958
1412	=item $player_object->goto_map ($map, $x, $y)	1959	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1413		1960
1414	=cut	1961	Moves the player to the given map-path and coordinates by first freezing
		1962	her, loading and preparing them map, calling the provided $check callback
		1963	that has to return the map if sucecssful, and then unfreezes the player on
		1964	the new (success) or old (failed) map position.
1415		1965
		1966	=cut
		1967
		1968	our $GOTOGEN;
		1969
1416	sub cf::object::player::goto_map {	1970	sub cf::object::player::goto {
1417	my ($self, $path, $x, $y) = @_;	1971	my ($self, $path, $x, $y, $check) = @_;
		1972
		1973	# do generation counting so two concurrent goto's will be executed in-order
		1974	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1418		1975
1419	$self->enter_link;	1976	$self->enter_link;
1420		1977
1421	(Coro::async {	1978	(async {
1422	$path = new cf::path $path;	1979	my $map = eval {
1423
1424	my $map = cf::map::find_map $path->as_string;	1980	my $map = cf::map::find $path;
		1981
		1982	if ($map) {
1425	$map = $map->customise_for ($self) if $map;	1983	$map = $map->customise_for ($self);
		1984	$map = $check->($map) if $check && $map;
		1985	} else {
		1986	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1987	}
1426		1988
1427	warn "entering ", $map->path, " at ($x, $y)\n"
1428	if $map;	1989	$map
		1990	};
1429		1991
		1992	if ($@) {
		1993	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1994	LOG llevError | logBacktrace, Carp::longmess $@;
		1995	}
		1996
		1997	if ($gen == $self->{_goto_generation}) {
		1998	delete $self->{_goto_generation};
1430	$self->leave_link ($map, $x, $y);	1999	$self->leave_link ($map, $x, $y);
		2000	}
1431	})->prio (1);	2001	})->prio (1);
1432	}	2002	}
1433		2003
1434	=item $player_object->enter_exit ($exit_object)	2004	=item $player_object->enter_exit ($exit_object)
1435		2005
…		…
1437		2007
1438	sub parse_random_map_params {	2008	sub parse_random_map_params {
1439	my ($spec) = @_;	2009	my ($spec) = @_;
1440		2010
1441	my $rmp = { # defaults	2011	my $rmp = { # defaults
1442	xsize => 10,	2012	xsize => (cf::rndm 15, 40),
1443	ysize => 10,	2013	ysize => (cf::rndm 15, 40),
		2014	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2015	#layout => string,
1444	};	2016	};
1445		2017
1446	for (split /\n/, $spec) {	2018	for (split /\n/, $spec) {
1447	my ($k, $v) = split /\s+/, $_, 2;	2019	my ($k, $v) = split /\s+/, $_, 2;
1448		2020
…		…
1452	$rmp	2024	$rmp
1453	}	2025	}
1454		2026
1455	sub prepare_random_map {	2027	sub prepare_random_map {
1456	my ($exit) = @_;	2028	my ($exit) = @_;
		2029
		2030	my $guard = cf::lock_acquire "exit_prepare:$exit";
1457		2031
1458	# all this does is basically replace the /! path by	2032	# all this does is basically replace the /! path by
1459	# a new random map path (?random/...) with a seed	2033	# a new random map path (?random/...) with a seed
1460	# that depends on the exit object	2034	# that depends on the exit object
1461		2035
1462	my $rmp = parse_random_map_params $exit->msg;	2036	my $rmp = parse_random_map_params $exit->msg;
1463		2037
1464	if ($exit->map) {	2038	if ($exit->map) {
1465	$rmp->{region} = $exit->map->region_name;	2039	$rmp->{region} = $exit->region->name;
1466	$rmp->{origin_map} = $exit->map->path;	2040	$rmp->{origin_map} = $exit->map->path;
1467	$rmp->{origin_x} = $exit->x;	2041	$rmp->{origin_x} = $exit->x;
1468	$rmp->{origin_y} = $exit->y;	2042	$rmp->{origin_y} = $exit->y;
1469	}	2043	}
1470		2044
1471	$rmp->{random_seed} ||= $exit->random_seed;	2045	$rmp->{random_seed} ||= $exit->random_seed;
1472		2046
1473	my $data = cf::to_json $rmp;	2047	my $data = cf::to_json $rmp;
1474	my $md5 = Digest::MD5::md5_hex $data;	2048	my $md5 = Digest::MD5::md5_hex $data;
		2049	my $meta = "$RANDOMDIR/$md5.meta";
1475		2050
1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2051	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1477	aio_write $fh, 0, (length $data), $data, 0;	2052	aio_write $fh, 0, (length $data), $data, 0;
		2053	undef $fh;
		2054	aio_rename "$meta~", $meta;
1478		2055
1479	$exit->slaying ("?random/$md5");	2056	$exit->slaying ("?random/$md5");
1480	$exit->msg (undef);	2057	$exit->msg (undef);
1481	}	2058	}
1482	}	2059	}
…		…
1484	sub cf::object::player::enter_exit {	2061	sub cf::object::player::enter_exit {
1485	my ($self, $exit) = @_;	2062	my ($self, $exit) = @_;
1486		2063
1487	return unless $self->type == cf::PLAYER;	2064	return unless $self->type == cf::PLAYER;
1488		2065
		2066	if ($exit->slaying eq "/!") {
		2067	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2068	# the problem is that $exit might not survive long enough
		2069	# so it needs to be done right now, right here
		2070	cf::sync_job { prepare_random_map $exit };
		2071	}
		2072
		2073	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2074	my $hp = $exit->stats->hp;
		2075	my $sp = $exit->stats->sp;
		2076
1489	$self->enter_link;	2077	$self->enter_link;
1490		2078
1491	(Coro::async {	2079	(async {
		2080	$self->deactivate_recursive; # just to be sure
1492	unless (eval {	2081	unless (eval {
1493		2082	$self->goto ($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		2083
1500	1;	2084	1;
1501	}) {	2085	}) {
1502	$self->message ("Something went wrong deep within the crossfire server. "	2086	$self->message ("Something went wrong deep within the crossfire server. "
1503	. "I'll try to bring you back to the map you were before. "	2087	. "I'll try to bring you back to the map you were before. "
1504	. "Please report this to the dungeon master",	2088	. "Please report this to the dungeon master!",
1505	cf::NDI_UNIQUE | cf::NDI_RED);	2089	cf::NDI_UNIQUE | cf::NDI_RED);
1506		2090
1507	warn "ERROR in enter_exit: $@";	2091	warn "ERROR in enter_exit: $@";
1508	$self->leave_link;	2092	$self->leave_link;
1509	}	2093	}
1510	})->prio (1);	2094	})->prio (1);
…		…
1523		2107
1524	sub cf::client::send_drawinfo {	2108	sub cf::client::send_drawinfo {
1525	my ($self, $text, $flags) = @_;	2109	my ($self, $text, $flags) = @_;
1526		2110
1527	utf8::encode $text;	2111	utf8::encode $text;
1528	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2112	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1529	}	2113	}
1530		2114
		2115	=item $client->ext_event ($type, %msg)
		2116
		2117	Sends an exti event to the client.
		2118
		2119	=cut
		2120
		2121	sub cf::client::ext_event($$%) {
		2122	my ($self, $type, %msg) = @_;
		2123
		2124	$msg{msgtype} = "event_$type";
		2125	$self->send_packet ("ext " . cf::to_json \%msg);
		2126	}
1531		2127
1532	=item $success = $client->query ($flags, "text", \&cb)	2128	=item $success = $client->query ($flags, "text", \&cb)
1533		2129
1534	Queues a query to the client, calling the given callback with	2130	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>,	2131	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1560	on_reply => sub {	2156	on_reply => sub {
1561	my ($ns, $msg) = @_;	2157	my ($ns, $msg) = @_;
1562		2158
1563	# this weird shuffling is so that direct followup queries	2159	# this weird shuffling is so that direct followup queries
1564	# get handled first	2160	# get handled first
1565	my $queue = delete $ns->{query_queue};	2161	my $queue = delete $ns->{query_queue}
		2162	or return; # be conservative, not sure how that can happen, but we saw a crash here
1566		2163
1567	(shift @$queue)->[1]->($msg);	2164	(shift @$queue)->[1]->($msg);
		2165	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1568		2166
1569	push @{ $ns->{query_queue} }, @$queue;	2167	push @{ $ns->{query_queue} }, @$queue;
1570		2168
1571	if (@{ $ns->{query_queue} } == @$queue) {	2169	if (@{ $ns->{query_queue} } == @$queue) {
1572	if (@$queue) {	2170	if (@$queue) {
…		…
1576	}	2174	}
1577	}	2175	}
1578	},	2176	},
1579	);	2177	);
1580		2178
1581	=item $client->coro (\&cb)	2179	=item $client->async (\&cb)
1582		2180
1583	Create a new coroutine, running the specified callback. The coroutine will	2181	Create a new coroutine, running the specified callback. The coroutine will
1584	be automatically cancelled when the client gets destroyed (e.g. on logout,	2182	be automatically cancelled when the client gets destroyed (e.g. on logout,
1585	or loss of connection).	2183	or loss of connection).
1586		2184
1587	=cut	2185	=cut
1588		2186
1589	sub cf::client::coro {	2187	sub cf::client::async {
1590	my ($self, $cb) = @_;	2188	my ($self, $cb) = @_;
1591		2189
1592	my $coro; $coro = async {	2190	my $coro = &Coro::async ($cb);
1593	eval {
1594	$cb->();
1595	};
1596	warn $@ if $@;
1597	};
1598		2191
1599	$coro->on_destroy (sub {	2192	$coro->on_destroy (sub {
1600	delete $self->{_coro}{$coro+0};	2193	delete $self->{_coro}{$coro+0};
1601	});	2194	});
1602		2195
…		…
1635		2228
1636	# here we export the classes and methods available to script code	2229	# here we export the classes and methods available to script code
1637		2230
1638	=pod	2231	=pod
1639		2232
1640	The following fucntions and emthods are available within a safe environment:	2233	The following functions and methods are available within a safe environment:
1641		2234
1642	cf::object contr pay_amount pay_player map	2235	cf::object contr pay_amount pay_player map
1643	cf::object::player player	2236	cf::object::player player
1644	cf::player peaceful	2237	cf::player peaceful
1645	cf::map trigger	2238	cf::map trigger
…		…
1730	#############################################################################	2323	#############################################################################
1731		2324
1732	=head2 EXTENSION DATABASE SUPPORT	2325	=head2 EXTENSION DATABASE SUPPORT
1733		2326
1734	Crossfire maintains a very simple database for extension use. It can	2327	Crossfire maintains a very simple database for extension use. It can
1735	currently store anything that can be serialised using Storable, which	2328	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1736	excludes objects.	2329	convert to/from binary).
1737		2330
1738	The parameter C<$family> should best start with the name of the extension	2331	The parameter C<$family> should best start with the name of the extension
1739	using it, it should be unique.	2332	using it, it should be unique.
1740		2333
1741	=over 4	2334	=over 4
1742		2335
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	2336	=item $value = cf::db_get $family => $key
1750		2337
1751	Returns a single value from the database	2338	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		2339
1758	=item cf::db_put $family => $key => $value	2340	=item cf::db_put $family => $key => $value
1759		2341
1760	Stores the given C<$value> in the family hash. Updates are delayed, if you	2342	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		2343
1771	=cut	2344	=cut
1772		2345
1773	our $DB;	2346	our $DB;
1774		2347
1775	{	2348	sub db_init {
1776	my $path = cf::localdir . "/database.pst";	2349	unless ($DB) {
		2350	$DB = BDB::db_create $DB_ENV;
1777		2351
1778	sub db_load() {	2352	cf::sync_job {
1779	warn "loading database $path\n";#d# remove later	2353	eval {
1780	$DB = stat $path ? Storable::retrieve $path : { };	2354	$DB->set_flags (BDB::CHKSUM);
1781	}
1782		2355
1783	my $pid;	2356	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1784		2357	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1785	sub db_save() {	2358	cf::cleanup "db_open(db): $!" if $!;
1786	warn "saving database $path\n";#d# remove later	2359	};
1787	waitpid $pid, 0 if $pid;	2360	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	}	2361	};
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	});	2362	}
		2363	}
1806		2364
1807	sub db_dirty() {
1808	$dirty = 1;
1809	$idle->start;
1810	}
1811
1812	sub db_get($;$) {	2365	sub db_get($$) {
1813	@_ >= 2	2366	my $key = "$_[0]/$_[1]";
1814	? $DB->{$_[0]}{$_[1]}
1815	: ($DB->{$_[0]} ||= { })
1816	}
1817		2367
		2368	cf::sync_job {
		2369	BDB::db_get $DB, undef, $key, my $data;
		2370
		2371	$! ? ()
		2372	: $data
		2373	}
		2374	}
		2375
1818	sub db_put($$;$) {	2376	sub db_put($$$) {
1819	if (@_ >= 3) {	2377	BDB::dbreq_pri 4;
1820	$DB->{$_[0]}{$_[1]} = $_[2];	2378	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1821	} else {	2379	}
1822	$DB->{$_[0]} = $_[1];
1823	}
1824	db_dirty;
1825	}
1826		2380
1827	cf::global->attach (	2381	=item cf::cache $id => [$paths...], $processversion => $process
1828	prio => 10000,	2382
1829	on_cleanup => sub {	2383	Generic caching function that returns the value of the resource $id,
1830	db_sync;	2384	caching and regenerating as required.
		2385
		2386	This function can block.
		2387
		2388	=cut
		2389
		2390	sub cache {
		2391	my ($id, $src, $processversion, $process) = @_;
		2392
		2393	my $meta =
		2394	join "\x00",
		2395	$processversion,
		2396	map {
		2397	aio_stat $_
		2398	and Carp::croak "$_: $!";
		2399
		2400	($_, (stat _)[7,9])
		2401	} @$src;
		2402
		2403	my $dbmeta = db_get cache => "$id/meta";
		2404	if ($dbmeta ne $meta) {
		2405	# changed, we may need to process
		2406
		2407	my @data;
		2408	my $md5;
		2409
		2410	for (0 .. $#$src) {
		2411	0 <= aio_load $src->[$_], $data[$_]
		2412	or Carp::croak "$src->[$_]: $!";
1831	},	2413	}
1832	);	2414
		2415	# if processing is expensive, check
		2416	# checksum first
		2417	if (1) {
		2418	$md5 =
		2419	join "\x00",
		2420	$processversion,
		2421	map {
		2422	Coro::cede;
		2423	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2424	} 0.. $#$src;
		2425
		2426
		2427	my $dbmd5 = db_get cache => "$id/md5";
		2428	if ($dbmd5 eq $md5) {
		2429	db_put cache => "$id/meta", $meta;
		2430
		2431	return db_get cache => "$id/data";
		2432	}
		2433	}
		2434
		2435	my $t1 = Time::HiRes::time;
		2436	my $data = $process->(\@data);
		2437	my $t2 = Time::HiRes::time;
		2438
		2439	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2440
		2441	db_put cache => "$id/data", $data;
		2442	db_put cache => "$id/md5" , $md5;
		2443	db_put cache => "$id/meta", $meta;
		2444
		2445	return $data;
		2446	}
		2447
		2448	db_get cache => "$id/data"
		2449	}
		2450
		2451	=item fork_call { }, $args
		2452
		2453	Executes the given code block with the given arguments in a seperate
		2454	process, returning the results. Everything must be serialisable with
		2455	Coro::Storable. May, of course, block. Note that the executed sub may
		2456	never block itself or use any form of Event handling.
		2457
		2458	=cut
		2459
		2460	sub fork_call(&@) {
		2461	my ($cb, @args) = @_;
		2462
		2463	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2464	# or die "socketpair: $!";
		2465	pipe my $fh1, my $fh2
		2466	or die "pipe: $!";
		2467
		2468	if (my $pid = fork) {
		2469	close $fh2;
		2470
		2471	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2472	$res = Coro::Storable::thaw $res;
		2473
		2474	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2475
		2476	die $$res unless "ARRAY" eq ref $res;
		2477
		2478	return wantarray ? @$res : $res->[-1];
		2479	} else {
		2480	reset_signals;
		2481	local $SIG{__WARN__};
		2482	local $SIG{__DIE__};
		2483	eval {
		2484	close $fh1;
		2485
		2486	my @res = eval { $cb->(@args) };
		2487	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2488	};
		2489
		2490	warn $@ if $@;
		2491	_exit 0;
		2492	}
1833	}	2493	}
1834		2494
1835	#############################################################################	2495	#############################################################################
1836	# the server's main()	2496	# the server's init and main functions
		2497
		2498	sub load_facedata($) {
		2499	my ($path) = @_;
		2500
		2501	warn "loading facedata from $path\n";
		2502
		2503	my $facedata;
		2504	0 < aio_load $path, $facedata
		2505	or die "$path: $!";
		2506
		2507	$facedata = Coro::Storable::thaw $facedata;
		2508
		2509	$facedata->{version} == 2
		2510	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2511
		2512	{
		2513	my $faces = $facedata->{faceinfo};
		2514
		2515	while (my ($face, $info) = each %$faces) {
		2516	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2517	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2518	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2519	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2520	Coro::cede;
		2521	}
		2522
		2523	while (my ($face, $info) = each %$faces) {
		2524	next unless $info->{smooth};
		2525	my $idx = cf::face::find $face
		2526	or next;
		2527	if (my $smooth = cf::face::find $info->{smooth}) {
		2528	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2529	} else {
		2530	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2531	}
		2532	Coro::cede;
		2533	}
		2534	}
		2535
		2536	{
		2537	my $anims = $facedata->{animinfo};
		2538
		2539	while (my ($anim, $info) = each %$anims) {
		2540	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2541	Coro::cede;
		2542	}
		2543
		2544	cf::anim::invalidate_all; # d'oh
		2545	}
		2546
		2547	1
		2548	}
		2549
		2550	sub reload_regions {
		2551	load_resource_file "$MAPDIR/regions"
		2552	or die "unable to load regions file\n";
		2553	}
		2554
		2555	sub reload_facedata {
		2556	load_facedata "$DATADIR/facedata"
		2557	or die "unable to load facedata\n";
		2558	}
		2559
		2560	sub reload_archetypes {
		2561	load_resource_file "$DATADIR/archetypes"
		2562	or die "unable to load archetypes\n";
		2563	}
		2564
		2565	sub reload_treasures {
		2566	load_resource_file "$DATADIR/treasures"
		2567	or die "unable to load treasurelists\n";
		2568	}
		2569
		2570	sub reload_resources {
		2571	warn "reloading resource files...\n";
		2572
		2573	reload_regions;
		2574	reload_facedata;
		2575	#reload_archetypes;#d#
		2576	reload_archetypes;
		2577	reload_treasures;
		2578
		2579	warn "finished reloading resource files\n";
		2580	}
		2581
		2582	sub init {
		2583	reload_resources;
		2584	}
1837		2585
1838	sub cfg_load {	2586	sub cfg_load {
1839	open my $fh, "<:utf8", cf::confdir . "/config"	2587	open my $fh, "<:utf8", "$CONFDIR/config"
1840	or return;	2588	or return;
1841		2589
1842	local $/;	2590	local $/;
1843	*CFG = YAML::Syck::Load <$fh>;	2591	*CFG = YAML::Syck::Load <$fh>;
		2592
		2593	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2594
		2595	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2596	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2597
		2598	if (exists $CFG{mlockall}) {
		2599	eval {
		2600	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2601	and die "WARNING: m(un)lockall failed: $!\n";
		2602	};
		2603	warn $@ if $@;
		2604	}
1844	}	2605	}
1845		2606
1846	sub main {	2607	sub main {
1847	# we must not ever block the main coroutine	2608	# we must not ever block the main coroutine
1848	local $Coro::idle = sub {	2609	local $Coro::idle = sub {
1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2610	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1850	(Coro::unblock_sub {	2611	(async {
1851	Event::one_event;	2612	Event::one_event;
1852	})->();	2613	})->prio (Coro::PRIO_MAX);
1853	};	2614	};
1854		2615
1855	cfg_load;	2616	cfg_load;
1856	db_load;	2617	db_init;
1857	load_extensions;	2618	load_extensions;
		2619
		2620	$TICK_WATCHER->start;
1858	Event::loop;	2621	Event::loop;
1859	}	2622	}
1860		2623
1861	#############################################################################	2624	#############################################################################
1862	# initialisation	2625	# initialisation and cleanup
1863		2626
		2627	# install some emergency cleanup handlers
		2628	BEGIN {
		2629	for my $signal (qw(INT HUP TERM)) {
		2630	Event->signal (
		2631	reentrant => 0,
		2632	data => WF_AUTOCANCEL,
		2633	signal => $signal,
		2634	prio => 0,
		2635	cb => sub {
		2636	cf::cleanup "SIG$signal";
		2637	},
		2638	);
		2639	}
		2640	}
		2641
		2642	sub emergency_save() {
		2643	my $freeze_guard = cf::freeze_mainloop;
		2644
		2645	warn "enter emergency perl save\n";
		2646
		2647	cf::sync_job {
		2648	# use a peculiar iteration method to avoid tripping on perl
		2649	# refcount bugs in for. also avoids problems with players
		2650	# and maps saved/destroyed asynchronously.
		2651	warn "begin emergency player save\n";
		2652	for my $login (keys %cf::PLAYER) {
		2653	my $pl = $cf::PLAYER{$login} or next;
		2654	$pl->valid or next;
		2655	$pl->save;
		2656	}
		2657	warn "end emergency player save\n";
		2658
		2659	warn "begin emergency map save\n";
		2660	for my $path (keys %cf::MAP) {
		2661	my $map = $cf::MAP{$path} or next;
		2662	$map->valid or next;
		2663	$map->save;
		2664	}
		2665	warn "end emergency map save\n";
		2666
		2667	warn "begin emergency database checkpoint\n";
		2668	BDB::db_env_txn_checkpoint $DB_ENV;
		2669	warn "end emergency database checkpoint\n";
		2670	};
		2671
		2672	warn "leave emergency perl save\n";
		2673	}
		2674
		2675	sub post_cleanup {
		2676	my ($make_core) = @_;
		2677
		2678	warn Carp::longmess "post_cleanup backtrace"
		2679	if $make_core;
		2680	}
		2681
1864	sub reload() {	2682	sub do_reload_perl() {
1865	# can/must only be called in main	2683	# can/must only be called in main
1866	if ($Coro::current != $Coro::main) {	2684	if ($Coro::current != $Coro::main) {
1867	warn "can only reload from main coroutine\n";	2685	warn "can only reload from main coroutine";
1868	return;	2686	return;
1869	}	2687	}
1870		2688
1871	warn "reloading...";	2689	warn "reloading...";
1872		2690
1873	local $FREEZE = 1;	2691	warn "entering sync_job";
		2692
		2693	cf::sync_job {
		2694	cf::write_runtime; # external watchdog should not bark
1874	cf::emergency_save;	2695	cf::emergency_save;
		2696	cf::write_runtime; # external watchdog should not bark
1875		2697
1876	eval {	2698	warn "syncing database to disk";
		2699	BDB::db_env_txn_checkpoint $DB_ENV;
		2700
1877	# if anything goes wrong in here, we should simply crash as we already saved	2701	# if anything goes wrong in here, we should simply crash as we already saved
1878		2702
1879	# cancel all watchers	2703	warn "cancelling all WF_AUTOCANCEL watchers";
1880	for (Event::all_watchers) {	2704	for (Event::all_watchers) {
1881	$_->cancel if $_->data & WF_AUTOCANCEL;	2705	$_->cancel if $_->data & WF_AUTOCANCEL;
1882	}	2706	}
1883		2707
		2708	warn "flushing outstanding aio requests";
		2709	for (;;) {
		2710	BDB::flush;
		2711	IO::AIO::flush;
		2712	Coro::cede;
		2713	last unless IO::AIO::nreqs || BDB::nreqs;
		2714	warn "iterate...";
		2715	}
		2716
		2717	++$RELOAD;
		2718
1884	# cancel all extension coros	2719	warn "cancelling all extension coros";
1885	$_->cancel for values %EXT_CORO;	2720	$_->cancel for values %EXT_CORO;
1886	%EXT_CORO = ();	2721	%EXT_CORO = ();
1887		2722
1888	# unload all extensions	2723	warn "removing commands";
1889	for (@exts) {	2724	%COMMAND = ();
		2725
		2726	warn "removing ext commands";
		2727	%EXTCMD = ();
		2728
		2729	warn "unloading/nuking all extensions";
		2730	for my $pkg (@EXTS) {
1890	warn "unloading <$_>";	2731	warn "... unloading $pkg";
1891	unload_extension $_;	2732
		2733	if (my $cb = $pkg->can ("unload")) {
		2734	eval {
		2735	$cb->($pkg);
		2736	1
		2737	} or warn "$pkg unloaded, but with errors: $@";
1892	}	2738	}
1893		2739
		2740	warn "... nuking $pkg";
		2741	Symbol::delete_package $pkg;
		2742	}
		2743
1894	# unload all modules loaded from $LIBDIR	2744	warn "unloading all perl modules loaded from $LIBDIR";
1895	while (my ($k, $v) = each %INC) {	2745	while (my ($k, $v) = each %INC) {
1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2746	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1897		2747
1898	warn "removing <$k>";	2748	warn "... unloading $k";
1899	delete $INC{$k};	2749	delete $INC{$k};
1900		2750
1901	$k =~ s/\.pm$//;	2751	$k =~ s/\.pm$//;
1902	$k =~ s/\//::/g;	2752	$k =~ s/\//::/g;
1903		2753
…		…
1906	}	2756	}
1907		2757
1908	Symbol::delete_package $k;	2758	Symbol::delete_package $k;
1909	}	2759	}
1910		2760
1911	# sync database to disk
1912	cf::db_sync;
1913	IO::AIO::flush;
1914
1915	# get rid of safe::, as good as possible	2761	warn "getting rid of safe::, as good as possible";
1916	Symbol::delete_package "safe::$_"	2762	Symbol::delete_package "safe::$_"
1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2763	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1918		2764
1919	# remove register_script_function callbacks
1920	# TODO
1921
1922	# unload cf.pm "a bit"	2765	warn "unloading cf.pm \"a bit\"";
1923	delete $INC{"cf.pm"};	2766	delete $INC{"cf.pm"};
		2767	delete $INC{"cf/pod.pm"};
1924		2768
1925	# don't, removes xs symbols, too,	2769	# don't, removes xs symbols, too,
1926	# and global variables created in xs	2770	# and global variables created in xs
1927	#Symbol::delete_package __PACKAGE__;	2771	#Symbol::delete_package __PACKAGE__;
1928		2772
1929	# reload cf.pm	2773	warn "unload completed, starting to reload now";
		2774
1930	warn "reloading cf.pm";	2775	warn "reloading cf.pm";
1931	require cf;	2776	require cf;
1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2777	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1933		2778
1934	# load config and database again	2779	warn "loading config and database again";
1935	cf::cfg_load;	2780	cf::cfg_load;
1936	cf::db_load;
1937		2781
1938	# load extensions
1939	warn "load extensions";	2782	warn "loading extensions";
1940	cf::load_extensions;	2783	cf::load_extensions;
1941		2784
1942	# reattach attachments to objects	2785	warn "reattaching attachments to objects/players";
1943	warn "reattach";	2786	_global_reattach; # objects, sockets
1944	_global_reattach;	2787	warn "reattaching attachments to maps";
1945	};	2788	reattach $_ for values %MAP;
		2789	warn "reattaching attachments to players";
		2790	reattach $_ for values %PLAYER;
1946		2791
1947	if ($@) {	2792	warn "leaving sync_job";
		2793
		2794	1
		2795	} or do {
1948	warn $@;	2796	warn $@;
1949	warn "error while reloading, exiting.";	2797	warn "error while reloading, exiting.";
1950	exit 1;	2798	exit 1;
1951	}	2799	};
1952		2800
1953	warn "reloaded successfully";	2801	warn "reloaded";
1954	};	2802	};
1955		2803
1956	#############################################################################	2804	our $RELOAD_WATCHER; # used only during reload
1957		2805
1958	unless ($LINK_MAP) {	2806	sub reload_perl() {
1959	$LINK_MAP = cf::map::new;	2807	# doing reload synchronously and two reloads happen back-to-back,
		2808	# coro crashes during coro_state_free->destroy here.
1960		2809
1961	$LINK_MAP->width (41);	2810	$RELOAD_WATCHER ||= Event->timer (
1962	$LINK_MAP->height (41);	2811	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,	2812	after => 0,
		2813	data => WF_AUTOCANCEL,
1971	cb => sub {	2814	cb => sub {
1972	$_[0]->w->cancel;	2815	do_reload_perl;
1973		2816	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	});	2817	},
1992		2818	);
1993	$LINK_MAP->{deny_save} = 1;
1994	$LINK_MAP->{deny_reset} = 1;
1995
1996	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1997	}	2819	}
1998
1999	register "<global>", __PACKAGE__;
2000		2820
2001	register_command "reload" => sub {	2821	register_command "reload" => sub {
2002	my ($who, $arg) = @_;	2822	my ($who, $arg) = @_;
2003		2823
2004	if ($who->flag (FLAG_WIZ)) {	2824	if ($who->flag (FLAG_WIZ)) {
2005	$who->message ("start of reload.");
2006	reload;
2007	$who->message ("end of reload.");	2825	$who->message ("reloading server.");
		2826	async { reload_perl };
2008	}	2827	}
2009	};	2828	};
2010		2829
2011	unshift @INC, $LIBDIR;	2830	unshift @INC, $LIBDIR;
2012		2831
		2832	my $bug_warning = 0;
		2833
		2834	our @WAIT_FOR_TICK;
		2835	our @WAIT_FOR_TICK_BEGIN;
		2836
		2837	sub wait_for_tick {
		2838	return unless $TICK_WATCHER->is_active;
		2839	return if $Coro::current == $Coro::main;
		2840
		2841	my $signal = new Coro::Signal;
		2842	push @WAIT_FOR_TICK, $signal;
		2843	$signal->wait;
		2844	}
		2845
		2846	sub wait_for_tick_begin {
		2847	return unless $TICK_WATCHER->is_active;
		2848	return if $Coro::current == $Coro::main;
		2849
		2850	my $signal = new Coro::Signal;
		2851	push @WAIT_FOR_TICK_BEGIN, $signal;
		2852	$signal->wait;
		2853	}
		2854
		2855	my $min = 1e6;#d#
		2856	my $avg = 10;
2013	$TICK_WATCHER = Event->timer (	2857	$TICK_WATCHER = Event->timer (
2014	reentrant => 0,	2858	reentrant => 0,
		2859	parked => 1,
2015	prio => 0,	2860	prio => 0,
2016	at => $NEXT_TICK || $TICK,	2861	at => $NEXT_TICK || $TICK,
2017	data => WF_AUTOCANCEL,	2862	data => WF_AUTOCANCEL,
2018	cb => sub {	2863	cb => sub {
2019	unless ($FREEZE) {	2864	if ($Coro::current != $Coro::main) {
		2865	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2866	unless ++$bug_warning > 10;
		2867	return;
		2868	}
		2869
		2870	$NOW = $tick_start = Event::time;
		2871
2020	cf::server_tick; # one server iteration	2872	cf::server_tick; # one server iteration
2021	$RUNTIME += $TICK;	2873
		2874	0 && sync_job {#d#
		2875	for(1..10) {
		2876	my $t = Event::time;
		2877	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2878	or die;
		2879
		2880	$map->width (50);
		2881	$map->height (50);
		2882	$map->alloc;
		2883	$map->_load_objects ("/tmp/x.map", 1);
		2884	my $t = Event::time - $t;
		2885
		2886	#next unless $t < 0.0013;#d#
		2887	if ($t < $min) {
		2888	$min = $t;
		2889	}
		2890	$avg = $avg * 0.99 + $t * 0.01;
		2891	}
		2892	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2893	exit 0;
		2894	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2022	}	2895	};
2023		2896
		2897	$RUNTIME += $TICK;
2024	$NEXT_TICK += $TICK;	2898	$NEXT_TICK += $TICK;
2025		2899
		2900	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2901	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2902	Coro::async_pool {
		2903	write_runtime
		2904	or warn "ERROR: unable to write runtime file: $!";
		2905	};
		2906	}
		2907
		2908	# my $AFTER = Event::time;
		2909	# warn $AFTER - $NOW;#d#
		2910
		2911	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2912	$sig->send;
		2913	}
		2914	while (my $sig = shift @WAIT_FOR_TICK) {
		2915	$sig->send;
		2916	}
		2917
		2918	$NOW = Event::time;
		2919
2026	# if we are delayed by four ticks or more, skip them all	2920	# if we are delayed by four ticks or more, skip them all
2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2921	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2028		2922
2029	$TICK_WATCHER->at ($NEXT_TICK);	2923	$TICK_WATCHER->at ($NEXT_TICK);
2030	$TICK_WATCHER->start;	2924	$TICK_WATCHER->start;
		2925
		2926	$LOAD = ($NOW - $tick_start) / $TICK;
		2927	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2928
		2929	_post_tick;
		2930
		2931
2031	},	2932	},
2032	);	2933	);
2033		2934
		2935	{
2034	IO::AIO::max_poll_time $TICK * 0.2;	2936	BDB::max_poll_time $TICK * 0.1;
2035		2937	$BDB_POLL_WATCHER = Event->io (
2036	Event->io (	2938	reentrant => 0,
2037	fd => IO::AIO::poll_fileno,	2939	fd => BDB::poll_fileno,
2038	poll => 'r',	2940	poll => 'r',
2039	prio => 5,	2941	prio => 0,
2040	data => WF_AUTOCANCEL,
2041	cb => \&IO::AIO::poll_cb,
2042	);
2043
2044	Event->timer (
2045	data => WF_AUTOCANCEL,	2942	data => WF_AUTOCANCEL,
2046	after => 0,	2943	cb => \&BDB::poll_cb,
2047	interval => 10,	2944	);
2048	cb => sub {	2945	BDB::min_parallel 8;
2049	(Coro::unblock_sub {	2946
2050	write_runtime	2947	BDB::set_sync_prepare {
2051	or warn "ERROR: unable to write runtime file: $!";	2948	my $status;
		2949	my $current = $Coro::current;
		2950	(
		2951	sub {
		2952	$status = $!;
		2953	$current->ready; undef $current;
		2954	},
		2955	sub {
		2956	Coro::schedule while defined $current;
		2957	$! = $status;
		2958	},
		2959	)
		2960	};
		2961
		2962	unless ($DB_ENV) {
		2963	$DB_ENV = BDB::db_env_create;
		2964
		2965	cf::sync_job {
		2966	eval {
		2967	BDB::db_env_open
		2968	$DB_ENV,
		2969	$BDBDIR,
		2970	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2971	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2972	0666;
		2973
		2974	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2975
		2976	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2977	$DB_ENV->set_lk_detect;
		2978	};
		2979
		2980	cf::cleanup "db_env_open(db): $@" if $@;
2052	})->();	2981	};
2053	},	2982	}
2054	);	2983	}
		2984
		2985	{
		2986	IO::AIO::min_parallel 8;
		2987
		2988	undef $Coro::AIO::WATCHER;
		2989	IO::AIO::max_poll_time $TICK * 0.1;
		2990	$AIO_POLL_WATCHER = Event->io (
		2991	reentrant => 0,
		2992	data => WF_AUTOCANCEL,
		2993	fd => IO::AIO::poll_fileno,
		2994	poll => 'r',
		2995	prio => 6,
		2996	cb => \&IO::AIO::poll_cb,
		2997	);
		2998	}
		2999
		3000	my $_log_backtrace;
		3001
		3002	sub _log_backtrace {
		3003	my ($msg, @addr) = @_;
		3004
		3005	$msg =~ s/\n//;
		3006
		3007	# limit the # of concurrent backtraces
		3008	if ($_log_backtrace < 2) {
		3009	++$_log_backtrace;
		3010	async {
		3011	my @bt = fork_call {
		3012	@addr = map { sprintf "%x", $_ } @addr;
		3013	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3014	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3015	or die "addr2line: $!";
		3016
		3017	my @funcs;
		3018	my @res = <$fh>;
		3019	chomp for @res;
		3020	while (@res) {
		3021	my ($func, $line) = splice @res, 0, 2, ();
		3022	push @funcs, "[$func] $line";
		3023	}
		3024
		3025	@funcs
		3026	};
		3027
		3028	LOG llevInfo, "[ABT] $msg\n";
		3029	LOG llevInfo, "[ABT] $_\n" for @bt;
		3030	--$_log_backtrace;
		3031	};
		3032	} else {
		3033	LOG llevInfo, "[ABT] $msg\n";
		3034	LOG llevInfo, "[ABT] [suppressed]\n";
		3035	}
		3036	}
		3037
		3038	# load additional modules
		3039	use cf::pod;
		3040
		3041	END { cf::emergency_save }
2055		3042
2056	1	3043	1
2057		3044

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