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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.110 by root, Mon Jan 1 11:21:55 2007 UTC vs.
Revision 1.278 by root, Mon Jun 11 21:38:14 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available	112	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		113
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	114	sub cf::map::normalise;
78		115
79	#############################################################################	116	#############################################################################
80		117
81	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
82		119
…		…
89	=item $cf::RUNTIME	126	=item $cf::RUNTIME
90		127
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	129	every server tick.
93		130
94	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		134
96	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
98		139
99	=item $cf::NOW	140	=item $cf::NOW
100		141
101	The time of the last (current) server tick.	142	The time of the last (current) server tick.
102		143
103	=item $cf::TICK	144	=item $cf::TICK
104		145
105	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
106		157
107	=item %cf::CFG	158	=item %cf::CFG
108		159
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		168
112	=back	169	=back
113		170
114	=cut	171	=cut
115		172
116	BEGIN {	173	BEGIN {
117	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	175	my $msg = join "", @_;
119	utf8::encode $msg;
120		176
121	$msg .= "\n"	177	$msg .= "\n"
122	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
123		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
125	};	184	};
126	}	185	}
127		186
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		194
135	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	196	# within the Safe compartment.
137	for my $pkg (qw(	197	for my $pkg (qw(
138	cf::global cf::attachable	198	cf::global cf::attachable
…		…
147		207
148	$Event::DIED = sub {	208	$Event::DIED = sub {
149	warn "error in event callback: @_";	209	warn "error in event callback: @_";
150	};	210	};
151		211
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
157		213
158	=over 4	214	=over 4
159		215
160	=cut	216	=item dumpval $ref
161		217
		218	=cut
		219
		220	sub dumpval {
		221	eval {
		222	local $SIG{__DIE__};
		223	my $d;
		224	if (1) {
		225	$d = new Data::Dumper([$_[0]], ["*var"]);
		226	$d->Terse(1);
		227	$d->Indent(2);
		228	$d->Quotekeys(0);
		229	$d->Useqq(1);
		230	#$d->Bless(...);
		231	$d->Seen($_[1]) if @_ > 1;
		232	$d = $d->Dump();
		233	}
		234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		235	$d
		236	} || "[unable to dump $_[0]: '$@']";
		237	}
		238
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		240
164	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
165		242
166	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
167		244
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
176		246
177	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
178		248
179	=cut	249	=item cf::lock_wait $string
180		250
181	sub to_json($) {	251	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	252
183	JSON::Syck::Dump $_[0]	253	=item my $lock = cf::lock_acquire $string
		254
		255	Wait until the given lock is available and then acquires it and returns
		256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		257	for example when the coroutine gets canceled), the lock is automatically
		258	returned.
		259
		260	Lock names should begin with a unique identifier (for example, cf::map::find
		261	uses map_find and cf::map::load uses map_load).
		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
		267	=cut
		268
		269	our %LOCK;
		270
		271	sub lock_wait($) {
		272	my ($key) = @_;
		273
		274	# wait for lock, if any
		275	while ($LOCK{$key}) {
		276	push @{ $LOCK{$key} }, $Coro::current;
		277	Coro::schedule;
		278	}
184	}	279	}
		280
		281	sub lock_acquire($) {
		282	my ($key) = @_;
		283
		284	# wait, to be sure we are not locked
		285	lock_wait $key;
		286
		287	$LOCK{$key} = [];
		288
		289	Coro::guard {
		290	# wake up all waiters, to be on the safe side
		291	$_->ready for @{ delete $LOCK{$key} };
		292	}
		293	}
		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
		301	sub freeze_mainloop {
		302	return unless $TICK_WATCHER->is_active;
		303
		304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
		307	$TICK_WATCHER->stop;
		308	$guard
		309	}
		310
		311	=item cf::async { BLOCK }
		312
		313	Currently the same as Coro::async_pool, meaning you cannot use
		314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		315	thing you are allowed to do is call C<prio> on it.
		316
		317	=cut
		318
		319	BEGIN { *async = \&Coro::async_pool }
185		320
186	=item cf::sync_job { BLOCK }	321	=item cf::sync_job { BLOCK }
187		322
188	The design of crossfire+ requires that the main coro ($Coro::main) is	323	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	324	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	332	=cut
198		333
199	sub sync_job(&) {	334	sub sync_job(&) {
200	my ($job) = @_;	335	my ($job) = @_;
201		336
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
		340	# this is the main coro, too bad, we have to block
		341	# till the operation succeeds, freezing the server :/
		342
212	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	344	# (but this is cancel-safe)
		345	my $freeze_guard = freeze_mainloop;
		346
		347	my $busy = 1;
		348	my @res;
		349
		350	(async {
		351	@res = eval { $job->() };
		352	warn $@ if $@;
		353	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	354	})->prio (Coro::PRIO_MAX);
		355
215	while ($busy) {	356	while ($busy) {
216	Coro::cede_notself;	357	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	358	}
		359
		360	$time = Event::time - $time;
		361
		362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		364
		365	$tick_start += $time; # do not account sync jobs to server load
		366
		367	wantarray ? @res : $res[0]
219	} else {	368	} else {
220	$coro->join;	369	# we are in another coroutine, how wonderful, everything just works
		370
		371	$job->()
221	}	372	}
222
223	wantarray ? @res : $res[0]
224	}	373	}
225		374
226	=item $coro = cf::coro { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
227		376
228	Creates and returns a new coro. This coro is automcatially being canceled	377	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	378	extension calling this is being unloaded.
230		379
231	=cut	380	=cut
232		381
233	sub coro(&) {	382	sub async_ext(&) {
234	my $cb = shift;	383	my $cb = shift;
235		384
236	my $coro; $coro = async {	385	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		386
243	$coro->on_destroy (sub {	387	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	388	delete $EXT_CORO{$coro+0};
245	});	389	});
246	$EXT_CORO{$coro+0} = $coro;	390	$EXT_CORO{$coro+0} = $coro;
247		391
248	$coro	392	$coro
249	}	393	}
250		394
251	sub write_runtime {	395	sub write_runtime {
252	my $runtime = cf::localdir . "/runtime";	396	my $runtime = "$LOCALDIR/runtime";
		397
		398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
		403	my $guard = cf::lock_acquire "write_runtime";
253		404
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	406	or return;
256		407
257	my $value = $cf::RUNTIME;	408	my $value = $cf::RUNTIME + 90 + 10;
		409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	413	and return;
260		414
		415	# always fsync - this file is important
261	aio_fsync $fh	416	aio_fsync $fh
262	and return;	417	and return;
263		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
264	close $fh	422	close $fh
265	or return;	423	or return;
266		424
267	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
268	and return;	426	and return;
269		427
		428	warn "runtime file written.\n";
		429
270	1	430	1
271	}	431	}
272		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
273	=back	444	=back
274		445
275	=cut	446	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		447
387	#############################################################################	448	#############################################################################
388		449
389	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
390		451
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	578	our @CB_MAP = ();
518		579
519	my %attachment;	580	my %attachment;
520		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
521	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
523		590
524	use sort 'stable';	591	use sort 'stable';
525		592
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
560		627
561	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		632
566	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	634	my $pkg = shift @arg;
568		635
569	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
610	if (ref $_[0]) {	677	if (ref $_[0]) {
611	_object_attach @_;	678	_object_attach @_;
612	} else {	679	} else {
613	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
614	}	681	}
		682	_recalc_want;
615	};	683	};
616		684
617	# all those should be optimised	685	# all those should be optimised
618	sub cf::attachable::detach {	686	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
623	reattach ($obj);	691	reattach ($obj);
624	} else {	692	} else {
625	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
626	}	694	}
		695	_recalc_want;
627	};	696	};
628		697
629	sub cf::attachable::attached {	698	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
631		700
…		…
696	# object support	765	# object support
697		766
698	sub reattach {	767	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		772
702	my $registry = $obj->registry;	773	my $registry = $obj->registry;
703		774
704	@$registry = ();	775	@$registry = ();
705		776
…		…
752	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
753		824
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	829	close $fh;
759		830
760	if (@$objs) {	831	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	837	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
768	}	839	}
769	} else {	840	} else {
770	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
798	or return;	869	or return;
799		870
800	unless (aio_stat "$filename.pst") {	871	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	872	(aio_load "$filename.pst", $av) >= 0
802	or return;	873	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
804	}	875	}
805		876
		877	warn sprintf "loading %s (%d)\n",
		878	$filename, length $data, scalar @{$av || []};
806	return ($data, $av);	879	return ($data, $av);
807	}	880	}
808		881
809	#############################################################################	882	#############################################################################
810	# command handling &c	883	# command handling &c
…		…
835	=cut	908	=cut
836		909
837	sub register_extcmd {	910	sub register_extcmd {
838	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
839		912
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
844	}	914	}
845		915
846	cf::player->attach (	916	cf::player->attach (
847	on_command => sub {	917	on_command => sub {
848	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
861		931
862	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
863		933
864	if (ref $msg) {	934	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	938	}
869	}	939	}
870	} else {	940	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		943
874	cf::override;	944	cf::override;
875	},	945	},
876	);	946	);
877		947
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	948	sub load_extensions {
		949	cf::sync_job {
		950	my %todo;
		951
		952	for my $path (<$LIBDIR/*.ext>) {
		953	next unless -r $path;
		954
		955	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		956	my $base = $1;
		957	my $pkg = $1;
		958	$pkg =~ s/[^[:word:]]/_/g;
		959	$pkg = "ext::$pkg";
		960
		961	open my $fh, "<:utf8", $path
		962	or die "$path: $!";
		963
		964	my $source = do { local $/; <$fh> };
		965
		966	my %ext = (
		967	path => $path,
		968	base => $base,
		969	pkg => $pkg,
		970	);
		971
		972	$ext{meta} = { map { split /=/, $_, 2 } split /\s+/, $1 }
		973	if $source =~ /^#!.*?perl.*?#\s*(.*)$/;
		974
		975	$ext{source} =
		976	"package $pkg; use strict; use utf8;\n"
		977	. "#line 1 \"$path\"\n{\n"
		978	. $source
		979	. "\n};\n1";
		980
		981	$todo{$base} = \%ext;
		982	}
		983
		984	my %done;
		985	while (%todo) {
		986	my $progress;
		987
		988	while (my ($k, $v) = each %todo) {
		989	for (split /,\s*/, $ext{meta}{depends}) {
		990	goto skip
		991	unless exists $done{$_};
		992	}
		993
		994	warn "... loading '$k' into '$v->{pkg}'\n";
		995
		996	unless (eval $v->{source}) {
		997	my $msg = $@ ? "$v->{path}: $@\n"
		998	: "extension disabled.\n";
		999
		1000	if (exists $v->{meta}{mandatory}) {
		1001	warn $msg;
		1002	warn "mandatory extension failed to load, exiting.\n";
		1003	exit 1;
		1004	}
		1005
		1006	die $msg;
		1007	}
		1008
		1009	$done{$k} = delete $todo{$k};
		1010	push @EXTS, $v->{pkg};
		1011	}
		1012
		1013	skip:
		1014	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1015	unless $progress;
		1016	}
		1017	};
		1018	}
		1019
		1020	#############################################################################
		1021
		1022	=head2 CORE EXTENSIONS
		1023
		1024	Functions and methods that extend core crossfire objects.
		1025
		1026	=cut
		1027
		1028	package cf::player;
		1029
		1030	use Coro::AIO;
		1031
		1032	=head3 cf::player
		1033
		1034	=over 4
		1035
		1036	=item cf::player::find $login
		1037
		1038	Returns the given player object, loading it if necessary (might block).
		1039
		1040	=cut
		1041
		1042	sub playerdir($) {
		1043	"$PLAYERDIR/"
		1044	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1045	}
		1046
		1047	sub path($) {
		1048	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1049
		1050	(playerdir $login) . "/playerdata"
		1051	}
		1052
		1053	sub find_active($) {
		1054	$cf::PLAYER{$_[0]}
		1055	and $cf::PLAYER{$_[0]}->active
		1056	and $cf::PLAYER{$_[0]}
		1057	}
		1058
		1059	sub exists($) {
		1060	my ($login) = @_;
		1061
		1062	$cf::PLAYER{$login}
		1063	or cf::sync_job { !aio_stat path $login }
		1064	}
		1065
		1066	sub find($) {
		1067	return $cf::PLAYER{$_[0]} || do {
		1068	my $login = $_[0];
		1069
		1070	my $guard = cf::lock_acquire "user_find:$login";
		1071
		1072	$cf::PLAYER{$_[0]} || do {
		1073	# rename old playerfiles to new ones
		1074	#TODO: remove when no longer required
		1075	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1076	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1077	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1078	aio_unlink +(playerdir $login) . "/$login.pl";
		1079
		1080	my $pl = load_pl path $login
		1081	or return;
		1082	$cf::PLAYER{$login} = $pl
		1083	}
		1084	}
		1085	}
		1086
		1087	sub save($) {
		1088	my ($pl) = @_;
		1089
		1090	return if $pl->{deny_save};
		1091
		1092	my $path = path $pl;
		1093	my $guard = cf::lock_acquire "user_save:$path";
		1094
		1095	return if $pl->{deny_save};
		1096
		1097	aio_mkdir playerdir $pl, 0770;
		1098	$pl->{last_save} = $cf::RUNTIME;
		1099
		1100	$pl->save_pl ($path);
		1101	Coro::cede;
		1102	}
		1103
		1104	sub new($) {
		1105	my ($login) = @_;
		1106
		1107	my $self = create;
		1108
		1109	$self->ob->name ($login);
		1110	$self->{deny_save} = 1;
		1111
		1112	$cf::PLAYER{$login} = $self;
		1113
		1114	$self
		1115	}
		1116
		1117	=item $pl->quit_character
		1118
		1119	Nukes the player without looking back. If logged in, the connection will
		1120	be destroyed. May block for a long time.
		1121
		1122	=cut
		1123
		1124	sub quit_character {
		1125	my ($pl) = @_;
		1126
		1127	my $name = $pl->ob->name;
		1128
		1129	$pl->{deny_save} = 1;
		1130	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1133	$pl->deactivate;
		1134	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1135	$pl->ns->destroy if $pl->ns;
		1136
		1137	my $path = playerdir $pl;
		1138	my $temp = "$path~$cf::RUNTIME~deleting~";
		1139	aio_rename $path, $temp;
		1140	delete $cf::PLAYER{$pl->ob->name};
		1141	$pl->destroy;
		1142
		1143	my $prefix = qr<^~\Q$name\E/>;
		1144
		1145	# nuke player maps
		1146	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1147
		1148	IO::AIO::aio_rmtree $temp;
		1149	}
		1150
		1151	=item $pl->kick
		1152
		1153	Kicks a player out of the game. This destroys the connection.
		1154
		1155	=cut
		1156
		1157	sub kick {
		1158	my ($pl, $kicker) = @_;
		1159
		1160	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1161	$pl->killer ("kicked");
		1162	$pl->ns->destroy;
		1163	}
		1164
		1165	=item cf::player::list_logins
		1166
		1167	Returns am arrayref of all valid playernames in the system, can take a
		1168	while and may block, so not sync_job-capable, ever.
		1169
		1170	=cut
		1171
		1172	sub list_logins {
		1173	my $dirs = aio_readdir $PLAYERDIR
		1174	or return [];
		1175
		1176	my @logins;
		1177
		1178	for my $login (@$dirs) {
		1179	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1180	aio_read $fh, 0, 512, my $buf, 0 or next;
		1181	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1182
		1183	utf8::decode $login;
		1184	push @logins, $login;
		1185	}
		1186
		1187	\@logins
		1188	}
		1189
		1190	=item $player->maps
		1191
		1192	Returns an arrayref of map paths that are private for this
		1193	player. May block.
		1194
		1195	=cut
		1196
		1197	sub maps($) {
		1198	my ($pl) = @_;
		1199
		1200	$pl = ref $pl ? $pl->ob->name : $pl;
		1201
		1202	my $files = aio_readdir playerdir $pl
		1203	or return;
		1204
		1205	my @paths;
		1206
		1207	for (@$files) {
		1208	utf8::decode $_;
		1209	next if /\.(?:pl|pst)$/;
		1210	next unless /^$PATH_SEP/o;
		1211
		1212	push @paths, cf::map::normalise "~$pl/$_";
		1213	}
		1214
		1215	\@paths
		1216	}
		1217
		1218	=item $player->ext_reply ($msgid, %msg)
		1219
		1220	Sends an ext reply to the player.
		1221
		1222	=cut
		1223
		1224	sub ext_reply($$%) {
		1225	my ($self, $id, %msg) = @_;
		1226
		1227	$msg{msgid} = $id;
		1228
		1229	$self->send ("ext " . cf::to_json \%msg);
		1230	}
		1231
		1232	=item $player->ext_event ($type, %msg)
		1233
		1234	Sends an ext event to the client.
		1235
		1236	=cut
		1237
		1238	sub ext_event($$%) {
		1239	my ($self, $type, %msg) = @_;
		1240
		1241	$self->ns->ext_event ($type, %msg);
		1242	}
		1243
		1244	=head3 cf::region
		1245
		1246	=over 4
		1247
		1248	=cut
		1249
		1250	package cf::region;
		1251
		1252	=item cf::region::find_by_path $path
		1253
		1254	Tries to decuce the probable region for a map knowing only its path.
		1255
		1256	=cut
		1257
		1258	sub find_by_path($) {
885	my ($path) = @_;	1259	my ($path) = @_;
886		1260
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1261	my ($match, $specificity);
888	my $base = $1;
889	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";
892		1262
893	warn "loading '$path' into '$pkg'\n";	1263	for my $region (list) {
894		1264	if ($region->match && $path =~ $region->match) {
895	open my $fh, "<:utf8", $path	1265	($match, $specificity) = ($region, $region->specificity)
896	or die "$path: $!";	1266	if $region->specificity > $specificity;
897		1267	}
898	my $source =
899	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })
902	. "\n};\n1";
903
904	eval $source
905	or die $@ ? "$path: $@\n"
906	: "extension disabled.\n";
907
908	push @exts, $pkg;
909	$ext_pkg{$base} = $pkg;
910
911	# no strict 'refs';
912	# @{"$pkg\::ISA"} = ext::;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	1268	}
927		1269
928	# remove commands	1270	$match
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}
953
954	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;
957	eval {
958	load_extension $ext;
959	1
960	} or warn "$ext not loaded: $@";
961	}
962	}
963
964	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001
1002	=head2 CORE EXTENSIONS
1003
1004	Functions and methods that extend core crossfire objects.
1005
1006	=head3 cf::player
1007
1008	=over 4
1009
1010	=item cf::player::exists $login
1011
1012	Returns true when the given account exists.
1013
1014	=cut
1015
1016	sub cf::player::exists($) {
1017	cf::player::find $_[0]
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1019	}
1020
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022
1023	Sends an ext reply to the player.
1024
1025	=cut
1026
1027	sub cf::player::ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;
1029
1030	$msg{msgid} = $id;
1031
1032	$self->send ("ext " . to_json \%msg);
1033	}	1271	}
1034		1272
1035	=back	1273	=back
1036
1037		1274
1038	=head3 cf::map	1275	=head3 cf::map
1039		1276
1040	=over 4	1277	=over 4
1041		1278
…		…
1044	package cf::map;	1281	package cf::map;
1045		1282
1046	use Fcntl;	1283	use Fcntl;
1047	use Coro::AIO;	1284	use Coro::AIO;
1048		1285
		1286	use overload
		1287	'""' => \&as_string,
		1288	fallback => 1;
		1289
1049	our $MAX_RESET = 7200;	1290	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1291	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1292
1054	sub generate_random_map {	1293	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1294	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1295	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1296	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1297	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1298	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1299	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1300	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1301	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1302	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1303	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1304	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1305	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1306	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1307	(cf::region::find $rmp->{region}), $rmp->{custom}
		1308	)
		1309	}
		1310
		1311	=item cf::map->register ($regex, $prio)
		1312
		1313	Register a handler for the map path matching the given regex at the
		1314	givne priority (higher is better, built-in handlers have priority 0, the
		1315	default).
		1316
		1317	=cut
		1318
		1319	sub register {
		1320	my (undef, $regex, $prio) = @_;
		1321	my $pkg = caller;
		1322
		1323	no strict;
		1324	push @{"$pkg\::ISA"}, __PACKAGE__;
		1325
		1326	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1327	}
		1328
		1329	# also paths starting with '/'
		1330	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1331
		1332	sub thawer_merge {
		1333	my ($self, $merge) = @_;
		1334
		1335	# we have to keep some variables in memory intact
		1336	local $self->{path};
		1337	local $self->{load_path};
		1338
		1339	$self->SUPER::thawer_merge ($merge);
		1340	}
		1341
		1342	sub normalise {
		1343	my ($path, $base) = @_;
		1344
		1345	$path = "$path"; # make sure its a string
		1346
		1347	$path =~ s/\.map$//;
		1348
		1349	# map plan:
		1350	#
		1351	# /! non-realised random map exit (special hack!)
		1352	# {... are special paths that are not being touched
		1353	# ?xxx/... are special absolute paths
		1354	# ?random/... random maps
		1355	# /... normal maps
		1356	# ~user/... per-player map of a specific user
		1357
		1358	$path =~ s/$PATH_SEP/\//go;
		1359
		1360	# treat it as relative path if it starts with
		1361	# something that looks reasonable
		1362	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1363	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1364
		1365	$base =~ s{[^/]+/?$}{};
		1366	$path = "$base/$path";
		1367	}
		1368
		1369	for ($path) {
		1370	redo if s{//}{/};
		1371	redo if s{/\.?/}{/};
		1372	redo if s{/[^/]+/\.\./}{/};
		1373	}
		1374
		1375	$path
		1376	}
		1377
		1378	sub new_from_path {
		1379	my (undef, $path, $base) = @_;
		1380
		1381	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1382
		1383	$path = normalise $path, $base;
		1384
		1385	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1386	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1387	my $self = bless cf::map::new, $pkg;
		1388	$self->{path} = $path; $self->path ($path);
		1389	$self->init; # pass $1 etc.
		1390	return $self;
		1391	}
		1392	}
		1393
		1394	Carp::carp "unable to resolve path '$path' (base '$base').";
		1395	()
		1396	}
		1397
		1398	sub init {
		1399	my ($self) = @_;
		1400
		1401	$self
		1402	}
		1403
		1404	sub as_string {
		1405	my ($self) = @_;
		1406
		1407	"$self->{path}"
		1408	}
		1409
		1410	# the displayed name, this is a one way mapping
		1411	sub visible_name {
		1412	&as_string
		1413	}
		1414
		1415	# the original (read-only) location
		1416	sub load_path {
		1417	my ($self) = @_;
		1418
		1419	"$MAPDIR/$self->{path}.map"
		1420	}
		1421
		1422	# the temporary/swap location
		1423	sub save_path {
		1424	my ($self) = @_;
		1425
		1426	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1427	"$TMPDIR/$path.map"
		1428	}
		1429
		1430	# the unique path, undef == no special unique path
		1431	sub uniq_path {
		1432	my ($self) = @_;
		1433
		1434	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1435	"$UNIQUEDIR/$path"
1071	}	1436	}
1072		1437
1073	# and all this just because we cannot iterate over	1438	# and all this just because we cannot iterate over
1074	# all maps in C++...	1439	# all maps in C++...
1075	sub change_all_map_light {	1440	sub change_all_map_light {
1076	my ($change) = @_;	1441	my ($change) = @_;
1077		1442
1078	$_->change_map_light ($change) for values %cf::MAP;	1443	$_->change_map_light ($change)
		1444	for grep $_->outdoor, values %cf::MAP;
1079	}	1445	}
1080		1446
		1447	sub decay_objects {
		1448	my ($self) = @_;
		1449
		1450	return if $self->{deny_reset};
		1451
		1452	$self->do_decay_objects;
		1453	}
		1454
		1455	sub unlink_save {
		1456	my ($self) = @_;
		1457
		1458	utf8::encode (my $save = $self->save_path);
		1459	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1460	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1461	}
		1462
1081	sub try_load_header($) {	1463	sub load_header_from($) {
1082	my ($path) = @_;	1464	my ($self, $path) = @_;
1083		1465
1084	utf8::encode $path;	1466	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1467	#aio_open $path, O_RDONLY, 0
		1468	# or return;
		1469
		1470	$self->_load_header ($path)
1086	or return;	1471	or return;
1087		1472
1088	my $map = cf::map::new	1473	$self->{load_path} = $path;
		1474
		1475	1
		1476	}
		1477
		1478	sub load_header_orig {
		1479	my ($self) = @_;
		1480
		1481	$self->load_header_from ($self->load_path)
		1482	}
		1483
		1484	sub load_header_temp {
		1485	my ($self) = @_;
		1486
		1487	$self->load_header_from ($self->save_path)
		1488	}
		1489
		1490	sub prepare_temp {
		1491	my ($self) = @_;
		1492
		1493	$self->last_access ((delete $self->{last_access})
		1494	|| $cf::RUNTIME); #d#
		1495	# safety
		1496	$self->{instantiate_time} = $cf::RUNTIME
		1497	if $self->{instantiate_time} > $cf::RUNTIME;
		1498	}
		1499
		1500	sub prepare_orig {
		1501	my ($self) = @_;
		1502
		1503	$self->{load_original} = 1;
		1504	$self->{instantiate_time} = $cf::RUNTIME;
		1505	$self->last_access ($cf::RUNTIME);
		1506	$self->instantiate;
		1507	}
		1508
		1509	sub load_header {
		1510	my ($self) = @_;
		1511
		1512	if ($self->load_header_temp) {
		1513	$self->prepare_temp;
		1514	} else {
		1515	$self->load_header_orig
1089	or return;	1516	or return;
		1517	$self->prepare_orig;
		1518	}
1090		1519
1091	$map->load_header ($path)	1520	$self->{deny_reset} = 1
1092	or return;	1521	if $self->no_reset;
1093		1522
1094	$map->{load_path} = $path;	1523	$self->default_region (cf::region::find_by_path $self->{path})
1095	use Data::Dumper; warn Dumper $map;#d#	1524	unless $self->default_region;
1096		1525
1097	$map	1526	1
1098	}	1527	}
1099		1528
		1529	sub find;
1100	sub find_map {	1530	sub find {
1101	my ($path, $origin) = @_;	1531	my ($path, $origin) = @_;
1102		1532
1103	#warn "find_map<$path,$origin>\n";#d#	1533	$path = normalise $path, $origin && $origin->path;
1104		1534
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1535	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1536
1108	$cf::MAP{$key} || do {	1537	$cf::MAP{$path} || do {
1109	# do it the slow way	1538	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1539	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1540	or return;
1124		1541
1125	$map->{instantiate_time} = $cf::RUNTIME;
1126	$map->instantiate;
1127
1128	# per-player maps become, after loading, normal maps
1129	$map->per_player (0) if $path->{user_rel};
1130	}
1131
1132	$map->path ($key);
1133	$map->{path} = $path;
1134	$map->last_access ($cf::RUNTIME);	1542	$map->{last_save} = $cf::RUNTIME;
1135		1543
1136	$map->reset if $map->should_reset;	1544	$map->load_header
		1545	or return;
1137		1546
		1547	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1548	# doing this can freeze the server in a sync job, obviously
		1549	#$cf::WAIT_FOR_TICK->wait;
		1550	$map->reset;
		1551	undef $guard;
		1552	return find $path;
		1553	}
		1554
1138	$cf::MAP{$key} = $map	1555	$cf::MAP{$path} = $map
1139	}	1556	}
1140	}	1557	}
		1558
		1559	sub pre_load { }
		1560	sub post_load { }
1141		1561
1142	sub load {	1562	sub load {
1143	my ($self) = @_;	1563	my ($self) = @_;
1144		1564
1145	return if $self->in_memory != cf::MAP_SWAPPED;	1565	local $self->{deny_reset} = 1; # loading can take a long time
1146
1147	$self->in_memory (cf::MAP_LOADING);
1148		1566
1149	my $path = $self->{path};	1567	my $path = $self->{path};
1150		1568
		1569	{
		1570	my $guard = cf::lock_acquire "map_load:$path";
		1571
		1572	return if $self->in_memory != cf::MAP_SWAPPED;
		1573
		1574	$self->in_memory (cf::MAP_LOADING);
		1575
1151	$self->alloc;	1576	$self->alloc;
		1577
		1578	$self->pre_load;
		1579	Coro::cede;
		1580
1152	$self->load_objects ($self->{load_path}, 1)	1581	$self->_load_objects ($self->{load_path}, 1)
1153	or return;	1582	or return;
1154		1583
		1584	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1585	if delete $self->{load_original};
		1586
1155	if (my $uniq = $path->uniq_path) {	1587	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	1588	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	1589	if (aio_open $uniq, O_RDONLY, 0) {
1158	$self->clear_unique_items;	1590	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	1591	$self->_load_objects ($uniq, 0);
1160	}	1592	}
1161	}	1593	}
1162		1594
		1595	Coro::cede;
1163	# now do the right thing for maps	1596	# now do the right thing for maps
1164	$self->link_multipart_objects;	1597	$self->link_multipart_objects;
1165
1166	if ($self->{path}->is_style_map) {
1167	$self->{deny_save} = 1;
1168	$self->{deny_reset} = 1;
1169	} else {
1170	$self->fix_auto_apply;
1171	$self->decay_objects;
1172	$self->update_buttons;
1173	$self->set_darkness_map;
1174	$self->difficulty ($self->estimate_difficulty)	1598	$self->difficulty ($self->estimate_difficulty)
1175	unless $self->difficulty;	1599	unless $self->difficulty;
		1600	Coro::cede;
		1601
		1602	unless ($self->{deny_activate}) {
		1603	$self->decay_objects;
		1604	$self->fix_auto_apply;
		1605	$self->update_buttons;
		1606	Coro::cede;
		1607	$self->set_darkness_map;
		1608	Coro::cede;
1176	$self->activate;	1609	$self->activate;
1177	}	1610	}
1178		1611
1179	$self->in_memory (cf::MAP_IN_MEMORY);	1612	$self->in_memory (cf::MAP_IN_MEMORY);
1180	}	1613	}
1181		1614
1182	sub load_map_sync {	1615	$self->post_load;
		1616	}
		1617
		1618	sub customise_for {
		1619	my ($self, $ob) = @_;
		1620
		1621	return find "~" . $ob->name . "/" . $self->{path}
		1622	if $self->per_player;
		1623
		1624	# return find "?party/" . $ob->name . "/" . $self->{path}
		1625	# if $self->per_party;
		1626
		1627	$self
		1628	}
		1629
		1630	# find and load all maps in the 3x3 area around a map
		1631	sub load_diag {
		1632	my ($map) = @_;
		1633
		1634	my @diag; # diagonal neighbours
		1635
		1636	for (0 .. 3) {
		1637	my $neigh = $map->tile_path ($_)
		1638	or next;
		1639	$neigh = find $neigh, $map
		1640	or next;
		1641	$neigh->load;
		1642
		1643	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1644	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1645	}
		1646
		1647	for (@diag) {
		1648	my $neigh = find @$_
		1649	or next;
		1650	$neigh->load;
		1651	}
		1652	}
		1653
		1654	sub find_sync {
1183	my ($path, $origin) = @_;	1655	my ($path, $origin) = @_;
1184		1656
1185	#warn "load_map_sync<$path, $origin>\n";#d#	1657	cf::sync_job { find $path, $origin }
		1658	}
1186		1659
1187	cf::sync_job {	1660	sub do_load_sync {
1188	my $map = cf::map::find_map $path, $origin	1661	my ($map) = @_;
1189	or return;	1662
		1663	cf::sync_job { $map->load };
		1664	}
		1665
		1666	our %MAP_PREFETCH;
		1667	our $MAP_PREFETCHER = undef;
		1668
		1669	sub find_async {
		1670	my ($path, $origin) = @_;
		1671
		1672	$path = normalise $path, $origin && $origin->{path};
		1673
		1674	if (my $map = $cf::MAP{$path}) {
		1675	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1676	}
		1677
		1678	undef $MAP_PREFETCH{$path};
		1679	$MAP_PREFETCHER ||= cf::async {
		1680	while (%MAP_PREFETCH) {
		1681	for my $path (keys %MAP_PREFETCH) {
		1682	my $map = find $path
		1683	or next;
1190	$map->load;	1684	$map->load;
1191	$map	1685
		1686	delete $MAP_PREFETCH{$path};
		1687	}
		1688	}
		1689	undef $MAP_PREFETCHER;
1192	}	1690	};
		1691	$MAP_PREFETCHER->prio (6);
		1692
		1693	()
1193	}	1694	}
1194		1695
1195	sub save {	1696	sub save {
1196	my ($self) = @_;	1697	my ($self) = @_;
1197		1698
1198	my $save = $self->{path}->save_path; utf8::encode $save;	1699	my $lock = cf::lock_acquire "map_data:" . $self->path;
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		1700
1201	$self->{last_save} = $cf::RUNTIME;	1701	$self->{last_save} = $cf::RUNTIME;
1202		1702
1203	return unless $self->dirty;	1703	return unless $self->dirty;
1204		1704
		1705	my $save = $self->save_path; utf8::encode $save;
		1706	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1707
1205	$self->{load_path} = $save;	1708	$self->{load_path} = $save;
1206		1709
1207	return if $self->{deny_save};	1710	return if $self->{deny_save};
1208		1711
1209	warn "saving map ", $self->path;	1712	local $self->{last_access} = $self->last_access;#d#
		1713
		1714	cf::async {
		1715	$_->contr->save for $self->players;
		1716	};
1210		1717
1211	if ($uniq) {	1718	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1719	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);	1720	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {	1721	} else {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1722	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}	1723	}
1217	}	1724	}
1218		1725
1219	sub swap_out {	1726	sub swap_out {
1220	my ($self) = @_;	1727	my ($self) = @_;
		1728
		1729	# save first because save cedes
		1730	$self->save;
		1731
		1732	my $lock = cf::lock_acquire "map_data:" . $self->path;
1221		1733
1222	return if $self->players;	1734	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;	1735	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};	1736	return if $self->{deny_save};
1225		1737
1226	$self->save;
1227	$self->clear;	1738	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	1739	$self->in_memory (cf::MAP_SWAPPED);
1229	}	1740	}
1230		1741
		1742	sub reset_at {
		1743	my ($self) = @_;
		1744
		1745	# TODO: safety, remove and allow resettable per-player maps
		1746	return 1e99 if $self->{deny_reset};
		1747
		1748	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1749	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1750
		1751	$time + $to
		1752	}
		1753
1231	sub should_reset {	1754	sub should_reset {
1232	my ($map) = @_;	1755	my ($self) = @_;
1233		1756
1234	# TODO: safety, remove and allow resettable per-player maps	1757	$self->reset_at <= $cf::RUNTIME
1235	return if $map->{path}{user_rel};#d#
1236	return if $map->{deny_reset};
1237	#return unless $map->reset_timeout;
1238
1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1240
1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
1242	}	1758	}
1243		1759
1244	sub reset {	1760	sub reset {
1245	my ($self) = @_;	1761	my ($self) = @_;
1246		1762
		1763	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1764
1247	return if $self->players;	1765	return if $self->players;
1248	return if $self->{path}{user_rel};#d#
1249		1766
1250	warn "resetting map ", $self->path;#d#	1767	warn "resetting map ", $self->path;
1251		1768
1252	utf8::encode (my $save = $self->{path}->save_path);	1769	$self->in_memory (cf::MAP_SWAPPED);
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;	1770
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";	1771	# need to save uniques path
		1772	unless ($self->{deny_save}) {
		1773	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1774
		1775	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1776	if $uniq;
		1777	}
		1778
		1779	delete $cf::MAP{$self->path};
		1780
		1781	$self->clear;
1255		1782
1256	$_->clear_links_to ($self) for values %cf::MAP;	1783	$_->clear_links_to ($self) for values %cf::MAP;
1257		1784
		1785	$self->unlink_save;
1258	$self->clear;	1786	$self->destroy;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}	1787	}
1262		1788
1263	sub customise_for {	1789	my $nuke_counter = "aaaa";
1264	my ($map, $ob) = @_;
1265		1790
1266	if ($map->per_player) {	1791	sub nuke {
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1792	my ($self) = @_;
		1793
		1794	delete $cf::MAP{$self->path};
		1795
		1796	$self->unlink_save;
		1797
		1798	bless $self, "cf::map";
		1799	delete $self->{deny_reset};
		1800	$self->{deny_save} = 1;
		1801	$self->reset_timeout (1);
		1802	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1803
		1804	$cf::MAP{$self->path} = $self;
		1805
		1806	$self->reset; # polite request, might not happen
		1807	}
		1808
		1809	=item $maps = cf::map::tmp_maps
		1810
		1811	Returns an arrayref with all map paths of currently instantiated and saved
		1812	maps. May block.
		1813
		1814	=cut
		1815
		1816	sub tmp_maps() {
1268	}	1817	[
1269		1818	map {
1270	$map	1819	utf8::decode $_;
		1820	/\.map$/
		1821	? normalise $_
		1822	: ()
		1823	} @{ aio_readdir $TMPDIR or [] }
		1824	]
1271	}	1825	}
1272		1826
1273	sub emergency_save {	1827	=item $maps = cf::map::random_maps
1274	local $cf::FREEZE = 1;
1275		1828
1276	warn "enter emergency map save\n";	1829	Returns an arrayref with all map paths of currently instantiated and saved
		1830	random maps. May block.
1277		1831
1278	cf::sync_job {	1832	=cut
1279	warn "begin emergency map save\n";
1280	$_->save for values %cf::MAP;
1281	};
1282		1833
1283	warn "end emergency map save\n";	1834	sub random_maps() {
		1835	[
		1836	map {
		1837	utf8::decode $_;
		1838	/\.map$/
		1839	? normalise "?random/$_"
		1840	: ()
		1841	} @{ aio_readdir $RANDOMDIR or [] }
		1842	]
		1843	}
		1844
		1845	=item cf::map::unique_maps
		1846
		1847	Returns an arrayref of paths of all shared maps that have
		1848	instantiated unique items. May block.
		1849
		1850	=cut
		1851
		1852	sub unique_maps() {
		1853	[
		1854	map {
		1855	utf8::decode $_;
		1856	/\.map$/
		1857	? normalise $_
		1858	: ()
		1859	} @{ aio_readdir $UNIQUEDIR or [] }
		1860	]
1284	}	1861	}
1285		1862
1286	package cf;	1863	package cf;
1287		1864
1288	=back	1865	=back
1289		1866
		1867	=head3 cf::object
		1868
		1869	=cut
		1870
		1871	package cf::object;
		1872
		1873	=over 4
		1874
		1875	=item $ob->inv_recursive
		1876
		1877	Returns the inventory of the object _and_ their inventories, recursively.
		1878
		1879	=cut
		1880
		1881	sub inv_recursive_;
		1882	sub inv_recursive_ {
		1883	map { $_, inv_recursive_ $_->inv } @_
		1884	}
		1885
		1886	sub inv_recursive {
		1887	inv_recursive_ inv $_[0]
		1888	}
		1889
		1890	package cf;
		1891
		1892	=back
1290		1893
1291	=head3 cf::object::player	1894	=head3 cf::object::player
1292		1895
1293	=over 4	1896	=over 4
1294		1897
…		…
1330	(ref $cf::CFG{"may_$access"}	1933	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1934	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	1935	: $cf::CFG{"may_$access"})
1333	}	1936	}
1334		1937
		1938	=item $player_object->enter_link
		1939
		1940	Freezes the player and moves him/her to a special map (C<{link}>).
		1941
		1942	The player should be reasonably safe there for short amounts of time. You
		1943	I<MUST> call C<leave_link> as soon as possible, though.
		1944
		1945	Will never block.
		1946
		1947	=item $player_object->leave_link ($map, $x, $y)
		1948
		1949	Moves the player out of the special C<{link}> map onto the specified
		1950	map. If the map is not valid (or omitted), the player will be moved back
		1951	to the location he/she was before the call to C<enter_link>, or, if that
		1952	fails, to the emergency map position.
		1953
		1954	Might block.
		1955
		1956	=cut
		1957
		1958	sub link_map {
		1959	unless ($LINK_MAP) {
		1960	$LINK_MAP = cf::map::find "{link}"
		1961	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1962	$LINK_MAP->load;
		1963	}
		1964
		1965	$LINK_MAP
		1966	}
		1967
1335	sub cf::object::player::enter_link {	1968	sub cf::object::player::enter_link {
1336	my ($self) = @_;	1969	my ($self) = @_;
1337		1970
1338	return if $self->map == $LINK_MAP;
1339
1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1341	if $self->map;
1342
1343	$self->enter_map ($LINK_MAP, 20, 20);
1344	$self->deactivate_recursive;	1971	$self->deactivate_recursive;
		1972
		1973	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1974
		1975	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1976	if $self->map && $self->map->{path} ne "{link}";
		1977
		1978	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1345	}	1979	}
1346		1980
1347	sub cf::object::player::leave_link {	1981	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	1982	my ($self, $map, $x, $y) = @_;
1349		1983
		1984	return unless $self->contr->active;
		1985
1350	my $link_pos = delete $self->{_link_pos};	1986	my $link_pos = delete $self->{_link_pos};
1351		1987
1352	unless ($map) {	1988	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	1989	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	1990	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	1991	$map = cf::map::find $map;
1358		1992
1359	unless ($map) {	1993	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	1994	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	1995	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	1996	or die "FATAL: cannot load emergency map\n";
1363	}	1997	}
1364	}	1998	}
1365		1999
1366	($x, $y) = (-1, -1)	2000	($x, $y) = (-1, -1)
…		…
1369	# use -1 or undef as default coordinates, not 0, 0	2003	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	2004	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	2005	if $x <=0 && $y <= 0;
1372		2006
1373	$map->load;	2007	$map->load;
		2008	$map->load_diag;
1374		2009
		2010	return unless $self->contr->active;
1375	$self->activate_recursive;	2011	$self->activate_recursive;
		2012
		2013	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1376	$self->enter_map ($map, $x, $y);	2014	$self->enter_map ($map, $x, $y);
1377	}	2015	}
1378		2016
1379	=item $player_object->goto_map ($map, $x, $y)	2017	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1380		2018
1381	=cut	2019	Moves the player to the given map-path and coordinates by first freezing
		2020	her, loading and preparing them map, calling the provided $check callback
		2021	that has to return the map if sucecssful, and then unfreezes the player on
		2022	the new (success) or old (failed) map position.
1382		2023
		2024	=cut
		2025
		2026	our $GOTOGEN;
		2027
1383	sub cf::object::player::goto_map {	2028	sub cf::object::player::goto {
1384	my ($self, $path, $x, $y) = @_;	2029	my ($self, $path, $x, $y, $check) = @_;
		2030
		2031	# do generation counting so two concurrent goto's will be executed in-order
		2032	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1385		2033
1386	$self->enter_link;	2034	$self->enter_link;
1387		2035
1388	(Coro::async {	2036	(async {
1389	$path = new cf::path $path;	2037	my $map = eval {
1390
1391	my $map = cf::map::find_map $path->as_string;	2038	my $map = cf::map::find $path;
		2039
		2040	if ($map) {
1392	$map = $map->customise_for ($self) if $map;	2041	$map = $map->customise_for ($self);
		2042	$map = $check->($map) if $check && $map;
		2043	} else {
		2044	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2045	}
1393		2046
1394	warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	2047	$map
		2048	};
1396		2049
		2050	if ($@) {
		2051	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2052	LOG llevError | logBacktrace, Carp::longmess $@;
		2053	}
		2054
		2055	if ($gen == $self->{_goto_generation}) {
		2056	delete $self->{_goto_generation};
1397	$self->leave_link ($map, $x, $y);	2057	$self->leave_link ($map, $x, $y);
		2058	}
1398	})->prio (1);	2059	})->prio (1);
1399	}	2060	}
1400		2061
1401	=item $player_object->enter_exit ($exit_object)	2062	=item $player_object->enter_exit ($exit_object)
1402		2063
…		…
1404		2065
1405	sub parse_random_map_params {	2066	sub parse_random_map_params {
1406	my ($spec) = @_;	2067	my ($spec) = @_;
1407		2068
1408	my $rmp = { # defaults	2069	my $rmp = { # defaults
1409	xsize => 10,	2070	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	2071	ysize => (cf::rndm 15, 40),
		2072	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2073	#layout => string,
1411	};	2074	};
1412		2075
1413	for (split /\n/, $spec) {	2076	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	2077	my ($k, $v) = split /\s+/, $_, 2;
1415		2078
…		…
1419	$rmp	2082	$rmp
1420	}	2083	}
1421		2084
1422	sub prepare_random_map {	2085	sub prepare_random_map {
1423	my ($exit) = @_;	2086	my ($exit) = @_;
		2087
		2088	my $guard = cf::lock_acquire "exit_prepare:$exit";
1424		2089
1425	# all this does is basically replace the /! path by	2090	# all this does is basically replace the /! path by
1426	# a new random map path (?random/...) with a seed	2091	# a new random map path (?random/...) with a seed
1427	# that depends on the exit object	2092	# that depends on the exit object
1428		2093
1429	my $rmp = parse_random_map_params $exit->msg;	2094	my $rmp = parse_random_map_params $exit->msg;
1430		2095
1431	if ($exit->map) {	2096	if ($exit->map) {
1432	$rmp->{region} = $exit->map->region_name;	2097	$rmp->{region} = $exit->region->name;
1433	$rmp->{origin_map} = $exit->map->path;	2098	$rmp->{origin_map} = $exit->map->path;
1434	$rmp->{origin_x} = $exit->x;	2099	$rmp->{origin_x} = $exit->x;
1435	$rmp->{origin_y} = $exit->y;	2100	$rmp->{origin_y} = $exit->y;
1436	}	2101	}
1437		2102
1438	$rmp->{random_seed} ||= $exit->random_seed;	2103	$rmp->{random_seed} ||= $exit->random_seed;
1439		2104
1440	my $data = cf::to_json $rmp;	2105	my $data = cf::to_json $rmp;
1441	my $md5 = Digest::MD5::md5_hex $data;	2106	my $md5 = Digest::MD5::md5_hex $data;
		2107	my $meta = "$RANDOMDIR/$md5.meta";
1442		2108
1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2109	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1444	aio_write $fh, 0, (length $data), $data, 0;	2110	aio_write $fh, 0, (length $data), $data, 0;
		2111	undef $fh;
		2112	aio_rename "$meta~", $meta;
1445		2113
1446	$exit->slaying ("?random/$md5");	2114	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	2115	$exit->msg (undef);
1448	}	2116	}
1449	}	2117	}
…		…
1451	sub cf::object::player::enter_exit {	2119	sub cf::object::player::enter_exit {
1452	my ($self, $exit) = @_;	2120	my ($self, $exit) = @_;
1453		2121
1454	return unless $self->type == cf::PLAYER;	2122	return unless $self->type == cf::PLAYER;
1455		2123
		2124	if ($exit->slaying eq "/!") {
		2125	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2126	# the problem is that $exit might not survive long enough
		2127	# so it needs to be done right now, right here
		2128	cf::sync_job { prepare_random_map $exit };
		2129	}
		2130
		2131	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2132	my $hp = $exit->stats->hp;
		2133	my $sp = $exit->stats->sp;
		2134
1456	$self->enter_link;	2135	$self->enter_link;
1457		2136
1458	(Coro::async {	2137	(async {
		2138	$self->deactivate_recursive; # just to be sure
1459	unless (eval {	2139	unless (eval {
1460		2140	$self->goto ($slaying, $hp, $sp);
1461	prepare_random_map $exit
1462	if $exit->slaying eq "/!";
1463
1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1466		2141
1467	1;	2142	1;
1468	}) {	2143	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	2144	$self->message ("Something went wrong deep within the crossfire server. "
1470	. "I'll try to bring you back to the map you were before. "	2145	. "I'll try to bring you back to the map you were before. "
1471	. "Please report this to the dungeon master",	2146	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	2147	cf::NDI_UNIQUE | cf::NDI_RED);
1473		2148
1474	warn "ERROR in enter_exit: $@";	2149	warn "ERROR in enter_exit: $@";
1475	$self->leave_link;	2150	$self->leave_link;
1476	}	2151	}
1477	})->prio (1);	2152	})->prio (1);
…		…
1490		2165
1491	sub cf::client::send_drawinfo {	2166	sub cf::client::send_drawinfo {
1492	my ($self, $text, $flags) = @_;	2167	my ($self, $text, $flags) = @_;
1493		2168
1494	utf8::encode $text;	2169	utf8::encode $text;
1495	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2170	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1496	}	2171	}
1497		2172
		2173	=item $client->ext_event ($type, %msg)
		2174
		2175	Sends an exti event to the client.
		2176
		2177	=cut
		2178
		2179	sub cf::client::ext_event($$%) {
		2180	my ($self, $type, %msg) = @_;
		2181
		2182	$msg{msgtype} = "event_$type";
		2183	$self->send_packet ("ext " . cf::to_json \%msg);
		2184	}
1498		2185
1499	=item $success = $client->query ($flags, "text", \&cb)	2186	=item $success = $client->query ($flags, "text", \&cb)
1500		2187
1501	Queues a query to the client, calling the given callback with	2188	Queues a query to the client, calling the given callback with
1502	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2189	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1527	on_reply => sub {	2214	on_reply => sub {
1528	my ($ns, $msg) = @_;	2215	my ($ns, $msg) = @_;
1529		2216
1530	# this weird shuffling is so that direct followup queries	2217	# this weird shuffling is so that direct followup queries
1531	# get handled first	2218	# get handled first
1532	my $queue = delete $ns->{query_queue};	2219	my $queue = delete $ns->{query_queue}
		2220	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		2221
1534	(shift @$queue)->[1]->($msg);	2222	(shift @$queue)->[1]->($msg);
		2223	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1535		2224
1536	push @{ $ns->{query_queue} }, @$queue;	2225	push @{ $ns->{query_queue} }, @$queue;
1537		2226
1538	if (@{ $ns->{query_queue} } == @$queue) {	2227	if (@{ $ns->{query_queue} } == @$queue) {
1539	if (@$queue) {	2228	if (@$queue) {
…		…
1543	}	2232	}
1544	}	2233	}
1545	},	2234	},
1546	);	2235	);
1547		2236
1548	=item $client->coro (\&cb)	2237	=item $client->async (\&cb)
1549		2238
1550	Create a new coroutine, running the specified callback. The coroutine will	2239	Create a new coroutine, running the specified callback. The coroutine will
1551	be automatically cancelled when the client gets destroyed (e.g. on logout,	2240	be automatically cancelled when the client gets destroyed (e.g. on logout,
1552	or loss of connection).	2241	or loss of connection).
1553		2242
1554	=cut	2243	=cut
1555		2244
1556	sub cf::client::coro {	2245	sub cf::client::async {
1557	my ($self, $cb) = @_;	2246	my ($self, $cb) = @_;
1558		2247
1559	my $coro; $coro = async {	2248	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		2249
1566	$coro->on_destroy (sub {	2250	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	2251	delete $self->{_coro}{$coro+0};
1568	});	2252	});
1569		2253
…		…
1602		2286
1603	# here we export the classes and methods available to script code	2287	# here we export the classes and methods available to script code
1604		2288
1605	=pod	2289	=pod
1606		2290
1607	The following fucntions and emthods are available within a safe environment:	2291	The following functions and methods are available within a safe environment:
1608		2292
1609	cf::object contr pay_amount pay_player map	2293	cf::object contr pay_amount pay_player map
1610	cf::object::player player	2294	cf::object::player player
1611	cf::player peaceful	2295	cf::player peaceful
1612	cf::map trigger	2296	cf::map trigger
…		…
1697	#############################################################################	2381	#############################################################################
1698		2382
1699	=head2 EXTENSION DATABASE SUPPORT	2383	=head2 EXTENSION DATABASE SUPPORT
1700		2384
1701	Crossfire maintains a very simple database for extension use. It can	2385	Crossfire maintains a very simple database for extension use. It can
1702	currently store anything that can be serialised using Storable, which	2386	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1703	excludes objects.	2387	convert to/from binary).
1704		2388
1705	The parameter C<$family> should best start with the name of the extension	2389	The parameter C<$family> should best start with the name of the extension
1706	using it, it should be unique.	2390	using it, it should be unique.
1707		2391
1708	=over 4	2392	=over 4
1709		2393
1710	=item $hashref = cf::db_get $family
1711
1712	Return a hashref for use by the extension C<$family>, which can be
1713	modified. After modifications, you have to call C<cf::db_dirty> or
1714	C<cf::db_sync>.
1715
1716	=item $value = cf::db_get $family => $key	2394	=item $value = cf::db_get $family => $key
1717		2395
1718	Returns a single value from the database	2396	Returns a single value from the database.
1719
1720	=item cf::db_put $family => $hashref
1721
1722	Stores the given family hashref into the database. Updates are delayed, if
1723	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1724		2397
1725	=item cf::db_put $family => $key => $value	2398	=item cf::db_put $family => $key => $value
1726		2399
1727	Stores the given C<$value> in the family hash. Updates are delayed, if you	2400	Stores the given C<$value> in the family.
1728	want the data to be synced to disk immediately, use C<cf::db_sync>.
1729
1730	=item cf::db_dirty
1731
1732	Marks the database as dirty, to be updated at a later time.
1733
1734	=item cf::db_sync
1735
1736	Immediately write the database to disk I<if it is dirty>.
1737		2401
1738	=cut	2402	=cut
1739		2403
1740	our $DB;	2404	our $DB;
1741		2405
1742	{	2406	sub db_init {
1743	my $path = cf::localdir . "/database.pst";	2407	unless ($DB) {
		2408	$DB = BDB::db_create $DB_ENV;
1744		2409
1745	sub db_load() {	2410	cf::sync_job {
1746	warn "loading database $path\n";#d# remove later	2411	eval {
1747	$DB = stat $path ? Storable::retrieve $path : { };	2412	$DB->set_flags (BDB::CHKSUM);
1748	}
1749		2413
1750	my $pid;	2414	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1751		2415	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1752	sub db_save() {	2416	cf::cleanup "db_open(db): $!" if $!;
1753	warn "saving database $path\n";#d# remove later	2417	};
1754	waitpid $pid, 0 if $pid;	2418	cf::cleanup "db_open(db): $@" if $@;
1755	if (0 == ($pid = fork)) {
1756	$DB->{_meta}{version} = 1;
1757	Storable::nstore $DB, "$path~";
1758	rename "$path~", $path;
1759	cf::_exit 0 if defined $pid;
1760	}	2419	};
1761	}
1762
1763	my $dirty;
1764
1765	sub db_sync() {
1766	db_save if $dirty;
1767	undef $dirty;
1768	}
1769
1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1771	db_sync;
1772	});	2420	}
		2421	}
1773		2422
1774	sub db_dirty() {
1775	$dirty = 1;
1776	$idle->start;
1777	}
1778
1779	sub db_get($;$) {	2423	sub db_get($$) {
1780	@_ >= 2	2424	my $key = "$_[0]/$_[1]";
1781	? $DB->{$_[0]}{$_[1]}
1782	: ($DB->{$_[0]} ||= { })
1783	}
1784		2425
		2426	cf::sync_job {
		2427	BDB::db_get $DB, undef, $key, my $data;
		2428
		2429	$! ? ()
		2430	: $data
		2431	}
		2432	}
		2433
1785	sub db_put($$;$) {	2434	sub db_put($$$) {
1786	if (@_ >= 3) {	2435	BDB::dbreq_pri 4;
1787	$DB->{$_[0]}{$_[1]} = $_[2];	2436	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1788	} else {	2437	}
1789	$DB->{$_[0]} = $_[1];
1790	}
1791	db_dirty;
1792	}
1793		2438
1794	cf::global->attach (	2439	=item cf::cache $id => [$paths...], $processversion => $process
1795	prio => 10000,	2440
1796	on_cleanup => sub {	2441	Generic caching function that returns the value of the resource $id,
1797	db_sync;	2442	caching and regenerating as required.
		2443
		2444	This function can block.
		2445
		2446	=cut
		2447
		2448	sub cache {
		2449	my ($id, $src, $processversion, $process) = @_;
		2450
		2451	my $meta =
		2452	join "\x00",
		2453	$processversion,
		2454	map {
		2455	aio_stat $_
		2456	and Carp::croak "$_: $!";
		2457
		2458	($_, (stat _)[7,9])
		2459	} @$src;
		2460
		2461	my $dbmeta = db_get cache => "$id/meta";
		2462	if ($dbmeta ne $meta) {
		2463	# changed, we may need to process
		2464
		2465	my @data;
		2466	my $md5;
		2467
		2468	for (0 .. $#$src) {
		2469	0 <= aio_load $src->[$_], $data[$_]
		2470	or Carp::croak "$src->[$_]: $!";
1798	},	2471	}
1799	);	2472
		2473	# if processing is expensive, check
		2474	# checksum first
		2475	if (1) {
		2476	$md5 =
		2477	join "\x00",
		2478	$processversion,
		2479	map {
		2480	Coro::cede;
		2481	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2482	} 0.. $#$src;
		2483
		2484
		2485	my $dbmd5 = db_get cache => "$id/md5";
		2486	if ($dbmd5 eq $md5) {
		2487	db_put cache => "$id/meta", $meta;
		2488
		2489	return db_get cache => "$id/data";
		2490	}
		2491	}
		2492
		2493	my $t1 = Time::HiRes::time;
		2494	my $data = $process->(\@data);
		2495	my $t2 = Time::HiRes::time;
		2496
		2497	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2498
		2499	db_put cache => "$id/data", $data;
		2500	db_put cache => "$id/md5" , $md5;
		2501	db_put cache => "$id/meta", $meta;
		2502
		2503	return $data;
		2504	}
		2505
		2506	db_get cache => "$id/data"
		2507	}
		2508
		2509	=item fork_call { }, $args
		2510
		2511	Executes the given code block with the given arguments in a seperate
		2512	process, returning the results. Everything must be serialisable with
		2513	Coro::Storable. May, of course, block. Note that the executed sub may
		2514	never block itself or use any form of Event handling.
		2515
		2516	=cut
		2517
		2518	sub fork_call(&@) {
		2519	my ($cb, @args) = @_;
		2520
		2521	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2522	# or die "socketpair: $!";
		2523	pipe my $fh1, my $fh2
		2524	or die "pipe: $!";
		2525
		2526	if (my $pid = fork) {
		2527	close $fh2;
		2528
		2529	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2530	$res = Coro::Storable::thaw $res;
		2531
		2532	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2533
		2534	die $$res unless "ARRAY" eq ref $res;
		2535
		2536	return wantarray ? @$res : $res->[-1];
		2537	} else {
		2538	reset_signals;
		2539	local $SIG{__WARN__};
		2540	local $SIG{__DIE__};
		2541	eval {
		2542	close $fh1;
		2543
		2544	my @res = eval { $cb->(@args) };
		2545	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2546	};
		2547
		2548	warn $@ if $@;
		2549	_exit 0;
		2550	}
1800	}	2551	}
1801		2552
1802	#############################################################################	2553	#############################################################################
1803	# the server's main()	2554	# the server's init and main functions
		2555
		2556	sub load_facedata($) {
		2557	my ($path) = @_;
		2558
		2559	warn "loading facedata from $path\n";
		2560
		2561	my $facedata;
		2562	0 < aio_load $path, $facedata
		2563	or die "$path: $!";
		2564
		2565	$facedata = Coro::Storable::thaw $facedata;
		2566
		2567	$facedata->{version} == 2
		2568	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2569
		2570	{
		2571	my $faces = $facedata->{faceinfo};
		2572
		2573	while (my ($face, $info) = each %$faces) {
		2574	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2575	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2576	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2577	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2578	Coro::cede;
		2579	}
		2580
		2581	while (my ($face, $info) = each %$faces) {
		2582	next unless $info->{smooth};
		2583	my $idx = cf::face::find $face
		2584	or next;
		2585	if (my $smooth = cf::face::find $info->{smooth}) {
		2586	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2587	} else {
		2588	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2589	}
		2590	Coro::cede;
		2591	}
		2592	}
		2593
		2594	{
		2595	my $anims = $facedata->{animinfo};
		2596
		2597	while (my ($anim, $info) = each %$anims) {
		2598	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2599	Coro::cede;
		2600	}
		2601
		2602	cf::anim::invalidate_all; # d'oh
		2603	}
		2604
		2605	1
		2606	}
		2607
		2608	sub reload_regions {
		2609	load_resource_file "$MAPDIR/regions"
		2610	or die "unable to load regions file\n";
		2611	}
		2612
		2613	sub reload_facedata {
		2614	load_facedata "$DATADIR/facedata"
		2615	or die "unable to load facedata\n";
		2616	}
		2617
		2618	sub reload_archetypes {
		2619	load_resource_file "$DATADIR/archetypes"
		2620	or die "unable to load archetypes\n";
		2621	}
		2622
		2623	sub reload_treasures {
		2624	load_resource_file "$DATADIR/treasures"
		2625	or die "unable to load treasurelists\n";
		2626	}
		2627
		2628	sub reload_resources {
		2629	warn "reloading resource files...\n";
		2630
		2631	reload_regions;
		2632	reload_facedata;
		2633	#reload_archetypes;#d#
		2634	reload_archetypes;
		2635	reload_treasures;
		2636
		2637	warn "finished reloading resource files\n";
		2638	}
		2639
		2640	sub init {
		2641	reload_resources;
		2642	}
1804		2643
1805	sub cfg_load {	2644	sub cfg_load {
1806	open my $fh, "<:utf8", cf::confdir . "/config"	2645	open my $fh, "<:utf8", "$CONFDIR/config"
1807	or return;	2646	or return;
1808		2647
1809	local $/;	2648	local $/;
1810	*CFG = YAML::Syck::Load <$fh>;	2649	*CFG = YAML::Syck::Load <$fh>;
		2650
		2651	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2652
		2653	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2654	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2655
		2656	if (exists $CFG{mlockall}) {
		2657	eval {
		2658	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2659	and die "WARNING: m(un)lockall failed: $!\n";
		2660	};
		2661	warn $@ if $@;
		2662	}
1811	}	2663	}
1812		2664
1813	sub main {	2665	sub main {
1814	# we must not ever block the main coroutine	2666	# we must not ever block the main coroutine
1815	local $Coro::idle = sub {	2667	local $Coro::idle = sub {
1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2668	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1817	(Coro::unblock_sub {	2669	(async {
1818	Event::one_event;	2670	Event::one_event;
1819	})->();	2671	})->prio (Coro::PRIO_MAX);
1820	};	2672	};
1821		2673
1822	cfg_load;	2674	cfg_load;
1823	db_load;	2675	db_init;
1824	load_extensions;	2676	load_extensions;
		2677
		2678	$TICK_WATCHER->start;
1825	Event::loop;	2679	Event::loop;
1826	}	2680	}
1827		2681
1828	#############################################################################	2682	#############################################################################
1829	# initialisation	2683	# initialisation and cleanup
1830		2684
1831	sub perl_reload() {	2685	# install some emergency cleanup handlers
		2686	BEGIN {
		2687	for my $signal (qw(INT HUP TERM)) {
		2688	Event->signal (
		2689	reentrant => 0,
		2690	data => WF_AUTOCANCEL,
		2691	signal => $signal,
		2692	prio => 0,
		2693	cb => sub {
		2694	cf::cleanup "SIG$signal";
		2695	},
		2696	);
		2697	}
		2698	}
		2699
		2700	sub emergency_save() {
		2701	my $freeze_guard = cf::freeze_mainloop;
		2702
		2703	warn "enter emergency perl save\n";
		2704
		2705	cf::sync_job {
		2706	# use a peculiar iteration method to avoid tripping on perl
		2707	# refcount bugs in for. also avoids problems with players
		2708	# and maps saved/destroyed asynchronously.
		2709	warn "begin emergency player save\n";
		2710	for my $login (keys %cf::PLAYER) {
		2711	my $pl = $cf::PLAYER{$login} or next;
		2712	$pl->valid or next;
		2713	$pl->save;
		2714	}
		2715	warn "end emergency player save\n";
		2716
		2717	warn "begin emergency map save\n";
		2718	for my $path (keys %cf::MAP) {
		2719	my $map = $cf::MAP{$path} or next;
		2720	$map->valid or next;
		2721	$map->save;
		2722	}
		2723	warn "end emergency map save\n";
		2724
		2725	warn "begin emergency database checkpoint\n";
		2726	BDB::db_env_txn_checkpoint $DB_ENV;
		2727	warn "end emergency database checkpoint\n";
		2728	};
		2729
		2730	warn "leave emergency perl save\n";
		2731	}
		2732
		2733	sub post_cleanup {
		2734	my ($make_core) = @_;
		2735
		2736	warn Carp::longmess "post_cleanup backtrace"
		2737	if $make_core;
		2738	}
		2739
		2740	sub do_reload_perl() {
1832	# can/must only be called in main	2741	# can/must only be called in main
1833	if ($Coro::current != $Coro::main) {	2742	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	2743	warn "can only reload from main coroutine";
1835	return;	2744	return;
1836	}	2745	}
1837		2746
1838	warn "reloading...";	2747	warn "reloading...";
1839		2748
1840	local $FREEZE = 1;	2749	warn "entering sync_job";
		2750
		2751	cf::sync_job {
		2752	cf::write_runtime; # external watchdog should not bark
1841	cf::emergency_save;	2753	cf::emergency_save;
		2754	cf::write_runtime; # external watchdog should not bark
1842		2755
1843	eval {	2756	warn "syncing database to disk";
		2757	BDB::db_env_txn_checkpoint $DB_ENV;
		2758
1844	# if anything goes wrong in here, we should simply crash as we already saved	2759	# if anything goes wrong in here, we should simply crash as we already saved
1845		2760
1846	# cancel all watchers	2761	warn "cancelling all WF_AUTOCANCEL watchers";
1847	for (Event::all_watchers) {	2762	for (Event::all_watchers) {
1848	$_->cancel if $_->data & WF_AUTOCANCEL;	2763	$_->cancel if $_->data & WF_AUTOCANCEL;
1849	}	2764	}
1850		2765
		2766	warn "flushing outstanding aio requests";
		2767	for (;;) {
		2768	BDB::flush;
		2769	IO::AIO::flush;
		2770	Coro::cede;
		2771	last unless IO::AIO::nreqs || BDB::nreqs;
		2772	warn "iterate...";
		2773	}
		2774
		2775	++$RELOAD;
		2776
1851	# cancel all extension coros	2777	warn "cancelling all extension coros";
1852	$_->cancel for values %EXT_CORO;	2778	$_->cancel for values %EXT_CORO;
1853	%EXT_CORO = ();	2779	%EXT_CORO = ();
1854		2780
1855	# unload all extensions	2781	warn "removing commands";
1856	for (@exts) {	2782	%COMMAND = ();
		2783
		2784	warn "removing ext commands";
		2785	%EXTCMD = ();
		2786
		2787	warn "unloading/nuking all extensions";
		2788	for my $pkg (@EXTS) {
1857	warn "unloading <$_>";	2789	warn "... unloading $pkg";
1858	unload_extension $_;	2790
		2791	if (my $cb = $pkg->can ("unload")) {
		2792	eval {
		2793	$cb->($pkg);
		2794	1
		2795	} or warn "$pkg unloaded, but with errors: $@";
1859	}	2796	}
1860		2797
		2798	warn "... nuking $pkg";
		2799	Symbol::delete_package $pkg;
		2800	}
		2801
1861	# unload all modules loaded from $LIBDIR	2802	warn "unloading all perl modules loaded from $LIBDIR";
1862	while (my ($k, $v) = each %INC) {	2803	while (my ($k, $v) = each %INC) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2804	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1864		2805
1865	warn "removing <$k>";	2806	warn "... unloading $k";
1866	delete $INC{$k};	2807	delete $INC{$k};
1867		2808
1868	$k =~ s/\.pm$//;	2809	$k =~ s/\.pm$//;
1869	$k =~ s/\//::/g;	2810	$k =~ s/\//::/g;
1870		2811
…		…
1873	}	2814	}
1874		2815
1875	Symbol::delete_package $k;	2816	Symbol::delete_package $k;
1876	}	2817	}
1877		2818
1878	# sync database to disk
1879	cf::db_sync;
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible	2819	warn "getting rid of safe::, as good as possible";
1883	Symbol::delete_package "safe::$_"	2820	Symbol::delete_package "safe::$_"
1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2821	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1885		2822
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"	2823	warn "unloading cf.pm \"a bit\"";
1890	delete $INC{"cf.pm"};	2824	delete $INC{"cf.pm"};
		2825	delete $INC{"cf/pod.pm"};
1891		2826
1892	# don't, removes xs symbols, too,	2827	# don't, removes xs symbols, too,
1893	# and global variables created in xs	2828	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;	2829	#Symbol::delete_package __PACKAGE__;
1895		2830
1896	# reload cf.pm	2831	warn "unload completed, starting to reload now";
		2832
1897	warn "reloading cf.pm";	2833	warn "reloading cf.pm";
1898	require cf;	2834	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2835	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900		2836
1901	# load config and database again	2837	warn "loading config and database again";
1902	cf::cfg_load;	2838	cf::cfg_load;
1903	cf::db_load;
1904		2839
1905	# load extensions
1906	warn "load extensions";	2840	warn "loading extensions";
1907	cf::load_extensions;	2841	cf::load_extensions;
1908		2842
1909	# reattach attachments to objects	2843	warn "reattaching attachments to objects/players";
1910	warn "reattach";	2844	_global_reattach; # objects, sockets
1911	_global_reattach;	2845	warn "reattaching attachments to maps";
1912	};	2846	reattach $_ for values %MAP;
		2847	warn "reattaching attachments to players";
		2848	reattach $_ for values %PLAYER;
1913		2849
1914	if ($@) {	2850	warn "leaving sync_job";
		2851
		2852	1
		2853	} or do {
1915	warn $@;	2854	warn $@;
1916	warn "error while reloading, exiting.";	2855	warn "error while reloading, exiting.";
1917	exit 1;	2856	exit 1;
1918	}	2857	};
1919		2858
1920	warn "reloaded successfully";	2859	warn "reloaded";
1921	};	2860	};
1922		2861
1923	#############################################################################	2862	our $RELOAD_WATCHER; # used only during reload
1924		2863
1925	unless ($LINK_MAP) {	2864	sub reload_perl() {
1926	$LINK_MAP = cf::map::new;	2865	# doing reload synchronously and two reloads happen back-to-back,
		2866	# coro crashes during coro_state_free->destroy here.
1927		2867
1928	$LINK_MAP->width (41);	2868	$RELOAD_WATCHER ||= Event->timer (
1929	$LINK_MAP->height (41);	2869	reentrant => 0,
1930	$LINK_MAP->alloc;
1931	$LINK_MAP->path ("{link}");
1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1934
1935	# dirty hack because... archetypes are not yet loaded
1936	Event->timer (
1937	after => 2,	2870	after => 0,
		2871	data => WF_AUTOCANCEL,
1938	cb => sub {	2872	cb => sub {
1939	$_[0]->w->cancel;	2873	do_reload_perl;
1940		2874	undef $RELOAD_WATCHER;
1941	# provide some exits "home"
1942	my $exit = cf::object::new "exit";
1943
1944	$exit->slaying ($EMERGENCY_POSITION->[0]);
1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1947
1948	$LINK_MAP->insert ($exit->clone, 19, 19);
1949	$LINK_MAP->insert ($exit->clone, 19, 20);
1950	$LINK_MAP->insert ($exit->clone, 19, 21);
1951	$LINK_MAP->insert ($exit->clone, 20, 19);
1952	$LINK_MAP->insert ($exit->clone, 20, 21);
1953	$LINK_MAP->insert ($exit->clone, 21, 19);
1954	$LINK_MAP->insert ($exit->clone, 21, 20);
1955	$LINK_MAP->insert ($exit->clone, 21, 21);
1956
1957	$exit->destroy;
1958	});	2875	},
1959		2876	);
1960	$LINK_MAP->{deny_save} = 1;
1961	$LINK_MAP->{deny_reset} = 1;
1962
1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1964	}	2877	}
1965		2878
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {	2879	register_command "reload" => sub {
1969	my ($who, $arg) = @_;	2880	my ($who, $arg) = @_;
1970		2881
1971	if ($who->flag (FLAG_WIZ)) {	2882	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end of reload.");	2883	$who->message ("reloading server.");
		2884	async { reload_perl };
1975	}	2885	}
1976	};	2886	};
1977		2887
1978	unshift @INC, $LIBDIR;	2888	unshift @INC, $LIBDIR;
1979		2889
		2890	my $bug_warning = 0;
		2891
		2892	our @WAIT_FOR_TICK;
		2893	our @WAIT_FOR_TICK_BEGIN;
		2894
		2895	sub wait_for_tick {
		2896	return unless $TICK_WATCHER->is_active;
		2897	return if $Coro::current == $Coro::main;
		2898
		2899	my $signal = new Coro::Signal;
		2900	push @WAIT_FOR_TICK, $signal;
		2901	$signal->wait;
		2902	}
		2903
		2904	sub wait_for_tick_begin {
		2905	return unless $TICK_WATCHER->is_active;
		2906	return if $Coro::current == $Coro::main;
		2907
		2908	my $signal = new Coro::Signal;
		2909	push @WAIT_FOR_TICK_BEGIN, $signal;
		2910	$signal->wait;
		2911	}
		2912
		2913	my $min = 1e6;#d#
		2914	my $avg = 10;
1980	$TICK_WATCHER = Event->timer (	2915	$TICK_WATCHER = Event->timer (
1981	reentrant => 0,	2916	reentrant => 0,
		2917	parked => 1,
1982	prio => 0,	2918	prio => 0,
1983	at => $NEXT_TICK || $TICK,	2919	at => $NEXT_TICK || $TICK,
1984	data => WF_AUTOCANCEL,	2920	data => WF_AUTOCANCEL,
1985	cb => sub {	2921	cb => sub {
1986	unless ($FREEZE) {	2922	if ($Coro::current != $Coro::main) {
		2923	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2924	unless ++$bug_warning > 10;
		2925	return;
		2926	}
		2927
		2928	$NOW = $tick_start = Event::time;
		2929
1987	cf::server_tick; # one server iteration	2930	cf::server_tick; # one server iteration
1988	$RUNTIME += $TICK;	2931
		2932	0 && sync_job {#d#
		2933	for(1..10) {
		2934	my $t = Event::time;
		2935	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2936	or die;
		2937
		2938	$map->width (50);
		2939	$map->height (50);
		2940	$map->alloc;
		2941	$map->_load_objects ("/tmp/x.map", 1);
		2942	my $t = Event::time - $t;
		2943
		2944	#next unless $t < 0.0013;#d#
		2945	if ($t < $min) {
		2946	$min = $t;
		2947	}
		2948	$avg = $avg * 0.99 + $t * 0.01;
		2949	}
		2950	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2951	exit 0;
		2952	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1989	}	2953	};
1990		2954
		2955	$RUNTIME += $TICK;
1991	$NEXT_TICK += $TICK;	2956	$NEXT_TICK += $TICK;
1992		2957
		2958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2959	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2960	Coro::async_pool {
		2961	write_runtime
		2962	or warn "ERROR: unable to write runtime file: $!";
		2963	};
		2964	}
		2965
		2966	# my $AFTER = Event::time;
		2967	# warn $AFTER - $NOW;#d#
		2968
		2969	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2970	$sig->send;
		2971	}
		2972	while (my $sig = shift @WAIT_FOR_TICK) {
		2973	$sig->send;
		2974	}
		2975
		2976	$NOW = Event::time;
		2977
1993	# if we are delayed by four ticks or more, skip them all	2978	# if we are delayed by four ticks or more, skip them all
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2979	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1995		2980
1996	$TICK_WATCHER->at ($NEXT_TICK);	2981	$TICK_WATCHER->at ($NEXT_TICK);
1997	$TICK_WATCHER->start;	2982	$TICK_WATCHER->start;
		2983
		2984	$LOAD = ($NOW - $tick_start) / $TICK;
		2985	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2986
		2987	_post_tick;
		2988
		2989
1998	},	2990	},
1999	);	2991	);
2000		2992
		2993	{
2001	IO::AIO::max_poll_time $TICK * 0.2;	2994	BDB::max_poll_time $TICK * 0.1;
2002		2995	$BDB_POLL_WATCHER = Event->io (
2003	Event->io (	2996	reentrant => 0,
2004	fd => IO::AIO::poll_fileno,	2997	fd => BDB::poll_fileno,
2005	poll => 'r',	2998	poll => 'r',
2006	prio => 5,	2999	prio => 0,
2007	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,
2009	);
2010
2011	Event->timer (
2012	data => WF_AUTOCANCEL,	3000	data => WF_AUTOCANCEL,
2013	after => 0,	3001	cb => \&BDB::poll_cb,
2014	interval => 10,	3002	);
2015	cb => sub {	3003	BDB::min_parallel 8;
2016	(Coro::unblock_sub {	3004
2017	write_runtime	3005	BDB::set_sync_prepare {
2018	or warn "ERROR: unable to write runtime file: $!";	3006	my $status;
		3007	my $current = $Coro::current;
		3008	(
		3009	sub {
		3010	$status = $!;
		3011	$current->ready; undef $current;
		3012	},
		3013	sub {
		3014	Coro::schedule while defined $current;
		3015	$! = $status;
		3016	},
		3017	)
		3018	};
		3019
		3020	unless ($DB_ENV) {
		3021	$DB_ENV = BDB::db_env_create;
		3022
		3023	cf::sync_job {
		3024	eval {
		3025	BDB::db_env_open
		3026	$DB_ENV,
		3027	$BDBDIR,
		3028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3030	0666;
		3031
		3032	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3033
		3034	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3035	$DB_ENV->set_lk_detect;
		3036	};
		3037
		3038	cf::cleanup "db_env_open(db): $@" if $@;
2019	})->();	3039	};
2020	},	3040	}
2021	);	3041	}
		3042
		3043	{
		3044	IO::AIO::min_parallel 8;
		3045
		3046	undef $Coro::AIO::WATCHER;
		3047	IO::AIO::max_poll_time $TICK * 0.1;
		3048	$AIO_POLL_WATCHER = Event->io (
		3049	reentrant => 0,
		3050	data => WF_AUTOCANCEL,
		3051	fd => IO::AIO::poll_fileno,
		3052	poll => 'r',
		3053	prio => 6,
		3054	cb => \&IO::AIO::poll_cb,
		3055	);
		3056	}
		3057
		3058	my $_log_backtrace;
		3059
		3060	sub _log_backtrace {
		3061	my ($msg, @addr) = @_;
		3062
		3063	$msg =~ s/\n//;
		3064
		3065	# limit the # of concurrent backtraces
		3066	if ($_log_backtrace < 2) {
		3067	++$_log_backtrace;
		3068	async {
		3069	my @bt = fork_call {
		3070	@addr = map { sprintf "%x", $_ } @addr;
		3071	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3072	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3073	or die "addr2line: $!";
		3074
		3075	my @funcs;
		3076	my @res = <$fh>;
		3077	chomp for @res;
		3078	while (@res) {
		3079	my ($func, $line) = splice @res, 0, 2, ();
		3080	push @funcs, "[$func] $line";
		3081	}
		3082
		3083	@funcs
		3084	};
		3085
		3086	LOG llevInfo, "[ABT] $msg\n";
		3087	LOG llevInfo, "[ABT] $_\n" for @bt;
		3088	--$_log_backtrace;
		3089	};
		3090	} else {
		3091	LOG llevInfo, "[ABT] $msg\n";
		3092	LOG llevInfo, "[ABT] [suppressed]\n";
		3093	}
		3094	}
		3095
		3096	# load additional modules
		3097	use cf::pod;
		3098
		3099	END { cf::emergency_save }
2022		3100
2023	1	3101	1
2024		3102

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