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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 1.271 by root, Fri Jun 1 06:04:08 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available	112	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		113
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	114	sub cf::map::normalise;
78		115
79	#############################################################################	116	#############################################################################
80		117
81	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
82		119
…		…
89	=item $cf::RUNTIME	126	=item $cf::RUNTIME
90		127
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	129	every server tick.
93		130
94	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		134
96	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
98		139
99	=item $cf::NOW	140	=item $cf::NOW
100		141
101	The time of the last (current) server tick.	142	The time of the last (current) server tick.
102		143
103	=item $cf::TICK	144	=item $cf::TICK
104		145
105	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
106		157
107	=item %cf::CFG	158	=item %cf::CFG
108		159
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		168
112	=back	169	=back
113		170
114	=cut	171	=cut
115		172
116	BEGIN {	173	BEGIN {
117	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	175	my $msg = join "", @_;
119	utf8::encode $msg;
120		176
121	$msg .= "\n"	177	$msg .= "\n"
122	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
123		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
125	};	184	};
126	}	185	}
127		186
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		206
148	$Event::DIED = sub {	207	$Event::DIED = sub {
149	warn "error in event callback: @_";	208	warn "error in event callback: @_";
150	};	209	};
151		210
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
157		212
158	=over 4	213	=over 4
159		214
160	=cut	215	=item dumpval $ref
161		216
		217	=cut
		218
		219	sub dumpval {
		220	eval {
		221	local $SIG{__DIE__};
		222	my $d;
		223	if (1) {
		224	$d = new Data::Dumper([$_[0]], ["*var"]);
		225	$d->Terse(1);
		226	$d->Indent(2);
		227	$d->Quotekeys(0);
		228	$d->Useqq(1);
		229	#$d->Bless(...);
		230	$d->Seen($_[1]) if @_ > 1;
		231	$d = $d->Dump();
		232	}
		233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		234	$d
		235	} || "[unable to dump $_[0]: '$@']";
		236	}
		237
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		239
164	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
165		241
166	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
167		243
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
176		245
177	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
178		247
179	=cut	248	=item cf::lock_wait $string
180		249
181	sub to_json($) {	250	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	251
183	JSON::Syck::Dump $_[0]	252	=item my $lock = cf::lock_acquire $string
		253
		254	Wait until the given lock is available and then acquires it and returns
		255	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		256	for example when the coroutine gets canceled), the lock is automatically
		257	returned.
		258
		259	Lock names should begin with a unique identifier (for example, cf::map::find
		260	uses map_find and cf::map::load uses map_load).
		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
		266	=cut
		267
		268	our %LOCK;
		269
		270	sub lock_wait($) {
		271	my ($key) = @_;
		272
		273	# wait for lock, if any
		274	while ($LOCK{$key}) {
		275	push @{ $LOCK{$key} }, $Coro::current;
		276	Coro::schedule;
		277	}
184	}	278	}
		279
		280	sub lock_acquire($) {
		281	my ($key) = @_;
		282
		283	# wait, to be sure we are not locked
		284	lock_wait $key;
		285
		286	$LOCK{$key} = [];
		287
		288	Coro::guard {
		289	# wake up all waiters, to be on the safe side
		290	$_->ready for @{ delete $LOCK{$key} };
		291	}
		292	}
		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
		300	sub freeze_mainloop {
		301	return unless $TICK_WATCHER->is_active;
		302
		303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
		306	$TICK_WATCHER->stop;
		307	$guard
		308	}
		309
		310	=item cf::async { BLOCK }
		311
		312	Currently the same as Coro::async_pool, meaning you cannot use
		313	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		314	thing you are allowed to do is call C<prio> on it.
		315
		316	=cut
		317
		318	BEGIN { *async = \&Coro::async_pool }
185		319
186	=item cf::sync_job { BLOCK }	320	=item cf::sync_job { BLOCK }
187		321
188	The design of crossfire+ requires that the main coro ($Coro::main) is	322	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	323	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	331	=cut
198		332
199	sub sync_job(&) {	333	sub sync_job(&) {
200	my ($job) = @_;	334	my ($job) = @_;
201		335
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 == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
		339	# this is the main coro, too bad, we have to block
		340	# till the operation succeeds, freezing the server :/
		341
212	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	343	# (but this is cancel-safe)
		344	my $freeze_guard = freeze_mainloop;
		345
		346	my $busy = 1;
		347	my @res;
		348
		349	(async {
		350	@res = eval { $job->() };
		351	warn $@ if $@;
		352	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	353	})->prio (Coro::PRIO_MAX);
		354
215	while ($busy) {	355	while ($busy) {
216	Coro::cede_notself;	356	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	357	}
		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
		365
		366	wantarray ? @res : $res[0]
219	} else {	367	} else {
220	$coro->join;	368	# we are in another coroutine, how wonderful, everything just works
		369
		370	$job->()
221	}	371	}
222
223	wantarray ? @res : $res[0]
224	}	372	}
225		373
226	=item $coro = cf::coro { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
227		375
228	Creates and returns a new coro. This coro is automcatially being canceled	376	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	377	extension calling this is being unloaded.
230		378
231	=cut	379	=cut
232		380
233	sub coro(&) {	381	sub async_ext(&) {
234	my $cb = shift;	382	my $cb = shift;
235		383
236	my $coro; $coro = async {	384	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		385
243	$coro->on_destroy (sub {	386	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	387	delete $EXT_CORO{$coro+0};
245	});	388	});
246	$EXT_CORO{$coro+0} = $coro;	389	$EXT_CORO{$coro+0} = $coro;
247		390
248	$coro	391	$coro
249	}	392	}
250		393
251	sub write_runtime {	394	sub write_runtime {
252	my $runtime = cf::localdir . "/runtime";	395	my $runtime = "$LOCALDIR/runtime";
		396
		397	# first touch the runtime file to show we are still running:
		398	# the fsync below can take a very very long time.
		399
		400	IO::AIO::aio_utime $runtime, undef, undef;
		401
		402	my $guard = cf::lock_acquire "write_runtime";
253		403
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	404	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	405	or return;
256		406
257	my $value = $cf::RUNTIME;	407	my $value = $cf::RUNTIME + 90 + 10;
		408	# 10 is the runtime save interval, for a monotonic clock
		409	# 60 allows for the watchdog to kill the server.
		410
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	411	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	412	and return;
260		413
		414	# always fsync - this file is important
261	aio_fsync $fh	415	aio_fsync $fh
262	and return;	416	and return;
263		417
		418	# touch it again to show we are up-to-date
		419	aio_utime $fh, undef, undef;
		420
264	close $fh	421	close $fh
265	or return;	422	or return;
266		423
267	aio_rename "$runtime~", $runtime	424	aio_rename "$runtime~", $runtime
268	and return;	425	and return;
269		426
		427	warn "runtime file written.\n";#d#
		428
270	1	429	1
271	}	430	}
272		431
		432	=item cf::datalog type => key => value, ...
		433
		434	Log a datalog packet of the given type with the given key-value pairs.
		435
		436	=cut
		437
		438	sub datalog($@) {
		439	my ($type, %kv) = @_;
		440	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		441	}
		442
273	=back	443	=back
274		444
275	=cut	445	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($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		446
387	#############################################################################	447	#############################################################################
388		448
389	=head2 ATTACHABLE OBJECTS	449	=head2 ATTACHABLE OBJECTS
390		450
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	576	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	577	our @CB_MAP = ();
518		578
519	my %attachment;	579	my %attachment;
520		580
		581	sub cf::attachable::thawer_merge {
		582	# simply override everything except _meta
		583	local $_[0]{_meta};
		584	%{$_[0]} = %{$_[1]};
		585	}
		586
521	sub _attach_cb($$$$) {	587	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	588	my ($registry, $event, $prio, $cb) = @_;
523		589
524	use sort 'stable';	590	use sort 'stable';
525		591
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	625	$registry = $CB_TYPE[$object_type] ||= [];
560		626
561	} elsif ($type eq "subtype") {	627	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	628	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	629	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	630	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		631
566	} elsif ($type eq "package") {	632	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	633	my $pkg = shift @arg;
568		634
569	while (my ($name, $id) = each %cb_id) {	635	while (my ($name, $id) = each %cb_id) {
…		…
610	if (ref $_[0]) {	676	if (ref $_[0]) {
611	_object_attach @_;	677	_object_attach @_;
612	} else {	678	} else {
613	_attach shift->_attach_registry, @_;	679	_attach shift->_attach_registry, @_;
614	}	680	}
		681	_recalc_want;
615	};	682	};
616		683
617	# all those should be optimised	684	# all those should be optimised
618	sub cf::attachable::detach {	685	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	686	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	689	delete $obj->{_attachment}{$name};
623	reattach ($obj);	690	reattach ($obj);
624	} else {	691	} else {
625	Carp::croak "cannot, currently, detach class attachments";	692	Carp::croak "cannot, currently, detach class attachments";
626	}	693	}
		694	_recalc_want;
627	};	695	};
628		696
629	sub cf::attachable::attached {	697	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	698	my ($obj, $name) = @_;
631		699
…		…
696	# object support	764	# object support
697		765
698	sub reattach {	766	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	767	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	768	my ($obj) = @_;
		769
		770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		771
702	my $registry = $obj->registry;	772	my $registry = $obj->registry;
703		773
704	@$registry = ();	774	@$registry = ();
705		775
…		…
752	$filename, length $$rdata, scalar @$objs;	822	$filename, length $$rdata, scalar @$objs;
753		823
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	825	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	827	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	828	close $fh;
759		829
760	if (@$objs) {	830	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	831	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	832	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	833	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	834	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	835	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	836	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	837	aio_rename "$filename.pst~", "$filename.pst";
768	}	838	}
769	} else {	839	} else {
770	aio_unlink "$filename.pst";	840	aio_unlink "$filename.pst";
…		…
798	or return;	868	or return;
799		869
800	unless (aio_stat "$filename.pst") {	870	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	871	(aio_load "$filename.pst", $av) >= 0
802	or return;	872	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	873	$av = eval { (Storable::thaw $av)->{objs} };
804	}	874	}
805		875
		876	warn sprintf "loading %s (%d)\n",
		877	$filename, length $data, scalar @{$av || []};#d#
806	return ($data, $av);	878	return ($data, $av);
807	}	879	}
808		880
809	#############################################################################	881	#############################################################################
810	# command handling &c	882	# command handling &c
…		…
835	=cut	907	=cut
836		908
837	sub register_extcmd {	909	sub register_extcmd {
838	my ($name, $cb) = @_;	910	my ($name, $cb) = @_;
839		911
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	912	$EXTCMD{$name} = $cb;
844	}	913	}
845		914
846	cf::player->attach (	915	cf::player->attach (
847	on_command => sub {	916	on_command => sub {
848	my ($pl, $name, $params) = @_;	917	my ($pl, $name, $params) = @_;
…		…
861		930
862	my $msg = eval { from_json $buf };	931	my $msg = eval { from_json $buf };
863		932
864	if (ref $msg) {	933	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	935	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	936	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	937	}
869	}	938	}
870	} else {	939	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		942
874	cf::override;	943	cf::override;
875	},	944	},
876	);	945	);
877		946
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	947	sub load_extension {
885	my ($path) = @_;	948	my ($path) = @_;
886		949
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
888	my $base = $1;	951	my $base = $1;
889	my $pkg = $1;	952	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;	953	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";	954	$pkg = "ext::$pkg";
892		955
893	warn "loading '$path' into '$pkg'\n";	956	warn "... loading '$path' into '$pkg'\n";
894		957
895	open my $fh, "<:utf8", $path	958	open my $fh, "<:utf8", $path
896	or die "$path: $!";	959	or die "$path: $!";
897		960
898	my $source =	961	my $source =
899	"package $pkg; use strict; use utf8;\n"	962	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"	963	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })	964	. (do { local $/; <$fh> })
902	. "\n};\n1";	965	. "\n};\n1";
903		966
904	eval $source	967	unless (eval $source) {
905	or die $@ ? "$path: $@\n"	968	my $msg = $@ ? "$path: $@\n"
906	: "extension disabled.\n";	969	: "extension disabled.\n";
907		970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908	push @exts, $pkg;	971	warn $@;
909	$ext_pkg{$base} = $pkg;	972	warn "mandatory extension failed to load, exiting.\n";
910		973	exit 1;
911	# no strict 'refs';	974	}
912	# @{"$pkg\::ISA"} = ext::;	975	die $@;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	976	}
927		977
928	# remove commands	978	push @EXTS, $pkg;
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	979	}
953		980
954	sub load_extensions {	981	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {	982	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	983	next unless -r $ext;
…		…
960	} or warn "$ext not loaded: $@";	987	} or warn "$ext not loaded: $@";
961	}	988	}
962	}	989	}
963		990
964	#############################################################################	991	#############################################################################
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		992
1002	=head2 CORE EXTENSIONS	993	=head2 CORE EXTENSIONS
1003		994
1004	Functions and methods that extend core crossfire objects.	995	Functions and methods that extend core crossfire objects.
1005		996
		997	=cut
		998
		999	package cf::player;
		1000
		1001	use Coro::AIO;
		1002
1006	=head3 cf::player	1003	=head3 cf::player
1007		1004
1008	=over 4	1005	=over 4
1009		1006
1010	=item cf::player::exists $login	1007	=item cf::player::find $login
1011		1008
1012	Returns true when the given account exists.	1009	Returns the given player object, loading it if necessary (might block).
1013		1010
1014	=cut	1011	=cut
1015		1012
1016	sub cf::player::exists($) {	1013	sub playerdir($) {
1017	cf::player::find $_[0]	1014	"$PLAYERDIR/"
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1015	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1019	}	1016	}
1020		1017
		1018	sub path($) {
		1019	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1020
		1021	(playerdir $login) . "/playerdata"
		1022	}
		1023
		1024	sub find_active($) {
		1025	$cf::PLAYER{$_[0]}
		1026	and $cf::PLAYER{$_[0]}->active
		1027	and $cf::PLAYER{$_[0]}
		1028	}
		1029
		1030	sub exists($) {
		1031	my ($login) = @_;
		1032
		1033	$cf::PLAYER{$login}
		1034	or cf::sync_job { !aio_stat path $login }
		1035	}
		1036
		1037	sub find($) {
		1038	return $cf::PLAYER{$_[0]} || do {
		1039	my $login = $_[0];
		1040
		1041	my $guard = cf::lock_acquire "user_find:$login";
		1042
		1043	$cf::PLAYER{$_[0]} || do {
		1044	# rename old playerfiles to new ones
		1045	#TODO: remove when no longer required
		1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1049	aio_unlink +(playerdir $login) . "/$login.pl";
		1050
		1051	my $pl = load_pl path $login
		1052	or return;
		1053	$cf::PLAYER{$login} = $pl
		1054	}
		1055	}
		1056	}
		1057
		1058	sub save($) {
		1059	my ($pl) = @_;
		1060
		1061	return if $pl->{deny_save};
		1062
		1063	my $path = path $pl;
		1064	my $guard = cf::lock_acquire "user_save:$path";
		1065
		1066	return if $pl->{deny_save};
		1067
		1068	aio_mkdir playerdir $pl, 0770;
		1069	$pl->{last_save} = $cf::RUNTIME;
		1070
		1071	$pl->save_pl ($path);
		1072	Coro::cede;
		1073	}
		1074
		1075	sub new($) {
		1076	my ($login) = @_;
		1077
		1078	my $self = create;
		1079
		1080	$self->ob->name ($login);
		1081	$self->{deny_save} = 1;
		1082
		1083	$cf::PLAYER{$login} = $self;
		1084
		1085	$self
		1086	}
		1087
		1088	=item $pl->quit_character
		1089
		1090	Nukes the player without looking back. If logged in, the connection will
		1091	be destroyed. May block for a long time.
		1092
		1093	=cut
		1094
		1095	sub quit_character {
		1096	my ($pl) = @_;
		1097
		1098	my $name = $pl->ob->name;
		1099
		1100	$pl->{deny_save} = 1;
		1101	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1102
		1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1104	$pl->deactivate;
		1105	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1106	$pl->ns->destroy if $pl->ns;
		1107
		1108	my $path = playerdir $pl;
		1109	my $temp = "$path~$cf::RUNTIME~deleting~";
		1110	aio_rename $path, $temp;
		1111	delete $cf::PLAYER{$pl->ob->name};
		1112	$pl->destroy;
		1113
		1114	my $prefix = qr<^~\Q$name\E/>;
		1115
		1116	# nuke player maps
		1117	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1118
		1119	IO::AIO::aio_rmtree $temp;
		1120	}
		1121
		1122	=item $pl->kick
		1123
		1124	Kicks a player out of the game. This destroys the connection.
		1125
		1126	=cut
		1127
		1128	sub kick {
		1129	my ($pl, $kicker) = @_;
		1130
		1131	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1132	$pl->killer ("kicked");
		1133	$pl->ns->destroy;
		1134	}
		1135
		1136	=item cf::player::list_logins
		1137
		1138	Returns am arrayref of all valid playernames in the system, can take a
		1139	while and may block, so not sync_job-capable, ever.
		1140
		1141	=cut
		1142
		1143	sub list_logins {
		1144	my $dirs = aio_readdir $PLAYERDIR
		1145	or return [];
		1146
		1147	my @logins;
		1148
		1149	for my $login (@$dirs) {
		1150	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1151	aio_read $fh, 0, 512, my $buf, 0 or next;
		1152	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1153
		1154	utf8::decode $login;
		1155	push @logins, $login;
		1156	}
		1157
		1158	\@logins
		1159	}
		1160
		1161	=item $player->maps
		1162
		1163	Returns an arrayref of map paths that are private for this
		1164	player. May block.
		1165
		1166	=cut
		1167
		1168	sub maps($) {
		1169	my ($pl) = @_;
		1170
		1171	$pl = ref $pl ? $pl->ob->name : $pl;
		1172
		1173	my $files = aio_readdir playerdir $pl
		1174	or return;
		1175
		1176	my @paths;
		1177
		1178	for (@$files) {
		1179	utf8::decode $_;
		1180	next if /\.(?:pl|pst)$/;
		1181	next unless /^$PATH_SEP/o;
		1182
		1183	push @paths, cf::map::normalise "~$pl/$_";
		1184	}
		1185
		1186	\@paths
		1187	}
		1188
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1189	=item $player->ext_reply ($msgid, %msg)
1022		1190
1023	Sends an ext reply to the player.	1191	Sends an ext reply to the player.
1024		1192
1025	=cut	1193	=cut
1026		1194
1027	sub cf::player::ext_reply($$$%) {	1195	sub ext_reply($$%) {
1028	my ($self, $id, %msg) = @_;	1196	my ($self, $id, %msg) = @_;
1029		1197
1030	$msg{msgid} = $id;	1198	$msg{msgid} = $id;
1031		1199
1032	$self->send ("ext " . to_json \%msg);	1200	$self->send ("ext " . cf::to_json \%msg);
		1201	}
		1202
		1203	=item $player->ext_event ($type, %msg)
		1204
		1205	Sends an ext event to the client.
		1206
		1207	=cut
		1208
		1209	sub ext_event($$%) {
		1210	my ($self, $type, %msg) = @_;
		1211
		1212	$self->ns->ext_event ($type, %msg);
		1213	}
		1214
		1215	=head3 cf::region
		1216
		1217	=over 4
		1218
		1219	=cut
		1220
		1221	package cf::region;
		1222
		1223	=item cf::region::find_by_path $path
		1224
		1225	Tries to decuce the probable region for a map knowing only its path.
		1226
		1227	=cut
		1228
		1229	sub find_by_path($) {
		1230	my ($path) = @_;
		1231
		1232	my ($match, $specificity);
		1233
		1234	for my $region (list) {
		1235	if ($region->match && $path =~ $region->match) {
		1236	($match, $specificity) = ($region, $region->specificity)
		1237	if $region->specificity > $specificity;
		1238	}
		1239	}
		1240
		1241	$match
1033	}	1242	}
1034		1243
1035	=back	1244	=back
1036
1037		1245
1038	=head3 cf::map	1246	=head3 cf::map
1039		1247
1040	=over 4	1248	=over 4
1041		1249
…		…
1044	package cf::map;	1252	package cf::map;
1045		1253
1046	use Fcntl;	1254	use Fcntl;
1047	use Coro::AIO;	1255	use Coro::AIO;
1048		1256
		1257	use overload
		1258	'""' => \&as_string,
		1259	fallback => 1;
		1260
1049	our $MAX_RESET = 7200;	1261	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1262	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1263
1054	sub generate_random_map {	1264	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1265	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1266	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1267	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1271	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1272	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1273	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1274	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1275	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1276	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1277	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1278	(cf::region::find $rmp->{region}), $rmp->{custom}
		1279	)
		1280	}
		1281
		1282	=item cf::map->register ($regex, $prio)
		1283
		1284	Register a handler for the map path matching the given regex at the
		1285	givne priority (higher is better, built-in handlers have priority 0, the
		1286	default).
		1287
		1288	=cut
		1289
		1290	sub register {
		1291	my (undef, $regex, $prio) = @_;
		1292	my $pkg = caller;
		1293
		1294	no strict;
		1295	push @{"$pkg\::ISA"}, __PACKAGE__;
		1296
		1297	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1298	}
		1299
		1300	# also paths starting with '/'
		1301	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1302
		1303	sub thawer_merge {
		1304	my ($self, $merge) = @_;
		1305
		1306	# we have to keep some variables in memory intact
		1307	local $self->{path};
		1308	local $self->{load_path};
		1309	local $self->{deny_save};
		1310	local $self->{deny_reset};
		1311
		1312	$self->SUPER::thawer_merge ($merge);
		1313	}
		1314
		1315	sub normalise {
		1316	my ($path, $base) = @_;
		1317
		1318	$path = "$path"; # make sure its a string
		1319
		1320	$path =~ s/\.map$//;
		1321
		1322	# map plan:
		1323	#
		1324	# /! non-realised random map exit (special hack!)
		1325	# {... are special paths that are not being touched
		1326	# ?xxx/... are special absolute paths
		1327	# ?random/... random maps
		1328	# /... normal maps
		1329	# ~user/... per-player map of a specific user
		1330
		1331	$path =~ s/$PATH_SEP/\//go;
		1332
		1333	# treat it as relative path if it starts with
		1334	# something that looks reasonable
		1335	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1336	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1337
		1338	$base =~ s{[^/]+/?$}{};
		1339	$path = "$base/$path";
		1340	}
		1341
		1342	for ($path) {
		1343	redo if s{//}{/};
		1344	redo if s{/\.?/}{/};
		1345	redo if s{/[^/]+/\.\./}{/};
		1346	}
		1347
		1348	$path
		1349	}
		1350
		1351	sub new_from_path {
		1352	my (undef, $path, $base) = @_;
		1353
		1354	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1355
		1356	$path = normalise $path, $base;
		1357
		1358	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1359	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1360	my $self = bless cf::map::new, $pkg;
		1361	$self->{path} = $path; $self->path ($path);
		1362	$self->init; # pass $1 etc.
		1363	return $self;
		1364	}
		1365	}
		1366
		1367	Carp::carp "unable to resolve path '$path' (base '$base').";
		1368	()
		1369	}
		1370
		1371	sub init {
		1372	my ($self) = @_;
		1373
		1374	$self
		1375	}
		1376
		1377	sub as_string {
		1378	my ($self) = @_;
		1379
		1380	"$self->{path}"
		1381	}
		1382
		1383	# the displayed name, this is a one way mapping
		1384	sub visible_name {
		1385	&as_string
		1386	}
		1387
		1388	# the original (read-only) location
		1389	sub load_path {
		1390	my ($self) = @_;
		1391
		1392	"$MAPDIR/$self->{path}.map"
		1393	}
		1394
		1395	# the temporary/swap location
		1396	sub save_path {
		1397	my ($self) = @_;
		1398
		1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1400	"$TMPDIR/$path.map"
		1401	}
		1402
		1403	# the unique path, undef == no special unique path
		1404	sub uniq_path {
		1405	my ($self) = @_;
		1406
		1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1408	"$UNIQUEDIR/$path"
1071	}	1409	}
1072		1410
1073	# and all this just because we cannot iterate over	1411	# and all this just because we cannot iterate over
1074	# all maps in C++...	1412	# all maps in C++...
1075	sub change_all_map_light {	1413	sub change_all_map_light {
1076	my ($change) = @_;	1414	my ($change) = @_;
1077		1415
1078	$_->change_map_light ($change) for values %cf::MAP;	1416	$_->change_map_light ($change)
		1417	for grep $_->outdoor, values %cf::MAP;
1079	}	1418	}
1080		1419
		1420	sub unlink_save {
		1421	my ($self) = @_;
		1422
		1423	utf8::encode (my $save = $self->save_path);
		1424	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1426	}
		1427
1081	sub try_load_header($) {	1428	sub load_header_from($) {
1082	my ($path) = @_;	1429	my ($self, $path) = @_;
1083		1430
1084	utf8::encode $path;	1431	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1432	#aio_open $path, O_RDONLY, 0
		1433	# or return;
		1434
		1435	$self->_load_header ($path)
1086	or return;	1436	or return;
1087		1437
1088	my $map = cf::map::new	1438	$self->{load_path} = $path;
		1439
		1440	1
		1441	}
		1442
		1443	sub load_header_orig {
		1444	my ($self) = @_;
		1445
		1446	$self->load_header_from ($self->load_path)
		1447	}
		1448
		1449	sub load_header_temp {
		1450	my ($self) = @_;
		1451
		1452	$self->load_header_from ($self->save_path)
		1453	}
		1454
		1455	sub prepare_temp {
		1456	my ($self) = @_;
		1457
		1458	$self->last_access ((delete $self->{last_access})
		1459	|| $cf::RUNTIME); #d#
		1460	# safety
		1461	$self->{instantiate_time} = $cf::RUNTIME
		1462	if $self->{instantiate_time} > $cf::RUNTIME;
		1463	}
		1464
		1465	sub prepare_orig {
		1466	my ($self) = @_;
		1467
		1468	$self->{load_original} = 1;
		1469	$self->{instantiate_time} = $cf::RUNTIME;
		1470	$self->last_access ($cf::RUNTIME);
		1471	$self->instantiate;
		1472	}
		1473
		1474	sub load_header {
		1475	my ($self) = @_;
		1476
		1477	if ($self->load_header_temp) {
		1478	$self->prepare_temp;
		1479	} else {
		1480	$self->load_header_orig
1089	or return;	1481	or return;
		1482	$self->prepare_orig;
		1483	}
1090		1484
1091	$map->load_header ($path)	1485	$self->default_region (cf::region::find_by_path $self->{path})
1092	or return;	1486	unless $self->default_region;
1093		1487
1094	$map->{load_path} = $path;	1488	1
1095	use Data::Dumper; warn Dumper $map;#d#
1096
1097	$map
1098	}	1489	}
1099		1490
		1491	sub find;
1100	sub find_map {	1492	sub find {
1101	my ($path, $origin) = @_;	1493	my ($path, $origin) = @_;
1102		1494
1103	#warn "find_map<$path,$origin>\n";#d#	1495	$path = normalise $path, $origin && $origin->path;
1104		1496
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1497	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1498
1108	$cf::MAP{$key} || do {	1499	$cf::MAP{$path} || do {
1109	# do it the slow way	1500	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1501	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;	1502	or return;
1124		1503
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);	1504	$map->{last_save} = $cf::RUNTIME;
1135		1505
1136	$map->reset if $map->should_reset;	1506	$map->load_header
		1507	or return;
1137		1508
		1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1510	# doing this can freeze the server in a sync job, obviously
		1511	#$cf::WAIT_FOR_TICK->wait;
		1512	$map->reset;
		1513	undef $guard;
		1514	return find $path;
		1515	}
		1516
1138	$cf::MAP{$key} = $map	1517	$cf::MAP{$path} = $map
1139	}	1518	}
1140	}	1519	}
		1520
		1521	sub pre_load { }
		1522	sub post_load { }
1141		1523
1142	sub load {	1524	sub load {
1143	my ($self) = @_;	1525	my ($self) = @_;
1144		1526
1145	return if $self->in_memory != cf::MAP_SWAPPED;	1527	local $self->{deny_reset} = 1; # loading can take a long time
1146
1147	$self->in_memory (cf::MAP_LOADING);
1148		1528
1149	my $path = $self->{path};	1529	my $path = $self->{path};
1150		1530
		1531	{
		1532	my $guard = cf::lock_acquire "map_load:$path";
		1533
		1534	return if $self->in_memory != cf::MAP_SWAPPED;
		1535
		1536	$self->in_memory (cf::MAP_LOADING);
		1537
1151	$self->alloc;	1538	$self->alloc;
		1539
		1540	$self->pre_load;
		1541	Coro::cede;
		1542
1152	$self->load_objects ($self->{load_path}, 1)	1543	$self->_load_objects ($self->{load_path}, 1)
1153	or return;	1544	or return;
1154		1545
		1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1547	if delete $self->{load_original};
		1548
1155	if (my $uniq = $path->uniq_path) {	1549	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	1550	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	1551	if (aio_open $uniq, O_RDONLY, 0) {
1158	$self->clear_unique_items;	1552	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	1553	$self->_load_objects ($uniq, 0);
1160	}	1554	}
1161	}	1555	}
1162		1556
		1557	Coro::cede;
1163	# now do the right thing for maps	1558	# now do the right thing for maps
1164	$self->link_multipart_objects;	1559	$self->link_multipart_objects;
1165
1166	if ($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)	1560	$self->difficulty ($self->estimate_difficulty)
1175	unless $self->difficulty;	1561	unless $self->difficulty;
		1562	Coro::cede;
		1563
		1564	unless ($self->{deny_activate}) {
		1565	$self->decay_objects;
		1566	$self->fix_auto_apply;
		1567	$self->update_buttons;
		1568	Coro::cede;
		1569	$self->set_darkness_map;
		1570	Coro::cede;
1176	$self->activate;	1571	$self->activate;
1177	}	1572	}
1178		1573
1179	$self->in_memory (cf::MAP_IN_MEMORY);	1574	$self->in_memory (cf::MAP_IN_MEMORY);
1180	}	1575	}
1181		1576
1182	sub load_map_sync {	1577	$self->post_load;
		1578	}
		1579
		1580	sub customise_for {
		1581	my ($self, $ob) = @_;
		1582
		1583	return find "~" . $ob->name . "/" . $self->{path}
		1584	if $self->per_player;
		1585
		1586	$self
		1587	}
		1588
		1589	# find and load all maps in the 3x3 area around a map
		1590	sub load_diag {
		1591	my ($map) = @_;
		1592
		1593	my @diag; # diagonal neighbours
		1594
		1595	for (0 .. 3) {
		1596	my $neigh = $map->tile_path ($_)
		1597	or next;
		1598	$neigh = find $neigh, $map
		1599	or next;
		1600	$neigh->load;
		1601
		1602	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1603	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1604	}
		1605
		1606	for (@diag) {
		1607	my $neigh = find @$_
		1608	or next;
		1609	$neigh->load;
		1610	}
		1611	}
		1612
		1613	sub find_sync {
1183	my ($path, $origin) = @_;	1614	my ($path, $origin) = @_;
1184		1615
1185	#warn "load_map_sync<$path, $origin>\n";#d#	1616	cf::sync_job { find $path, $origin }
		1617	}
1186		1618
1187	cf::sync_job {	1619	sub do_load_sync {
1188	my $map = cf::map::find_map $path, $origin	1620	my ($map) = @_;
1189	or return;	1621
		1622	cf::sync_job { $map->load };
		1623	}
		1624
		1625	our %MAP_PREFETCH;
		1626	our $MAP_PREFETCHER = undef;
		1627
		1628	sub find_async {
		1629	my ($path, $origin) = @_;
		1630
		1631	$path = normalise $path, $origin && $origin->{path};
		1632
		1633	if (my $map = $cf::MAP{$path}) {
		1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1635	}
		1636
		1637	undef $MAP_PREFETCH{$path};
		1638	$MAP_PREFETCHER ||= cf::async {
		1639	while (%MAP_PREFETCH) {
		1640	for my $path (keys %MAP_PREFETCH) {
		1641	my $map = find $path
		1642	or next;
1190	$map->load;	1643	$map->load;
1191	$map	1644
		1645	delete $MAP_PREFETCH{$path};
		1646	}
		1647	}
		1648	undef $MAP_PREFETCHER;
1192	}	1649	};
		1650	$MAP_PREFETCHER->prio (6);
		1651
		1652	()
1193	}	1653	}
1194		1654
1195	sub save {	1655	sub save {
1196	my ($self) = @_;	1656	my ($self) = @_;
1197		1657
1198	my $save = $self->{path}->save_path; utf8::encode $save;	1658	my $lock = cf::lock_acquire "map_data:" . $self->path;
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		1659
1201	$self->{last_save} = $cf::RUNTIME;	1660	$self->{last_save} = $cf::RUNTIME;
1202		1661
1203	return unless $self->dirty;	1662	return unless $self->dirty;
1204		1663
		1664	my $save = $self->save_path; utf8::encode $save;
		1665	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1666
1205	$self->{load_path} = $save;	1667	$self->{load_path} = $save;
1206		1668
1207	return if $self->{deny_save};	1669	return if $self->{deny_save};
1208		1670
1209	warn "saving map ", $self->path;	1671	local $self->{last_access} = $self->last_access;#d#
		1672
		1673	cf::async {
		1674	$_->contr->save for $self->players;
		1675	};
1210		1676
1211	if ($uniq) {	1677	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);	1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {	1680	} else {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1681	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}	1682	}
1217	}	1683	}
1218		1684
1219	sub swap_out {	1685	sub swap_out {
1220	my ($self) = @_;	1686	my ($self) = @_;
		1687
		1688	# save first because save cedes
		1689	$self->save;
		1690
		1691	my $lock = cf::lock_acquire "map_data:" . $self->path;
1221		1692
1222	return if $self->players;	1693	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;	1694	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};	1695	return if $self->{deny_save};
1225		1696
1226	$self->save;
1227	$self->clear;	1697	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	1698	$self->in_memory (cf::MAP_SWAPPED);
1229	}	1699	}
1230		1700
		1701	sub reset_at {
		1702	my ($self) = @_;
		1703
		1704	# TODO: safety, remove and allow resettable per-player maps
		1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1706	return 1e99 if $self->{deny_reset};
		1707
		1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1710
		1711	$time + $to
		1712	}
		1713
1231	sub should_reset {	1714	sub should_reset {
1232	my ($map) = @_;	1715	my ($self) = @_;
1233		1716
1234	# TODO: safety, remove and allow resettable per-player maps	1717	$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) < $cf::RUNTIME
1242	}	1718	}
1243		1719
1244	sub reset {	1720	sub reset {
1245	my ($self) = @_;	1721	my ($self) = @_;
1246		1722
		1723	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1724
1247	return if $self->players;	1725	return if $self->players;
1248	return if $self->{path}{user_rel};#d#	1726	return if $self->isa ("ext::map_per_player");#d#
1249		1727
1250	warn "resetting map ", $self->path;#d#	1728	warn "resetting map ", $self->path;#d#
1251		1729
1252	utf8::encode (my $save = $self->{path}->save_path);	1730	$self->in_memory (cf::MAP_SWAPPED);
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;	1731
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";	1732	# need to save uniques path
		1733	unless ($self->{deny_save}) {
		1734	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1735
		1736	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1737	if $uniq;
		1738	}
		1739
		1740	delete $cf::MAP{$self->path};
		1741
		1742	$self->clear;
1255		1743
1256	$_->clear_links_to ($self) for values %cf::MAP;	1744	$_->clear_links_to ($self) for values %cf::MAP;
1257		1745
		1746	$self->unlink_save;
1258	$self->clear;	1747	$self->destroy;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}	1748	}
1262		1749
1263	sub customise_for {	1750	my $nuke_counter = "aaaa";
1264	my ($map, $ob) = @_;
1265		1751
1266	if ($map->per_player) {	1752	sub nuke {
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1753	my ($self) = @_;
1268	}
1269		1754
1270	$map	1755	delete $cf::MAP{$self->path};
1271	}
1272		1756
1273	sub emergency_save {	1757	$self->unlink_save;
1274	local $cf::FREEZE = 1;
1275		1758
1276	warn "enter emergency map save\n";	1759	bless $self, "cf::map";
		1760	delete $self->{deny_reset};
		1761	$self->{deny_save} = 1;
		1762	$self->reset_timeout (1);
		1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1277		1764
1278	cf::sync_job {	1765	$cf::MAP{$self->path} = $self;
1279	warn "begin emergency map save\n";	1766
1280	$_->save for values %cf::MAP;	1767	$self->reset; # polite request, might not happen
		1768	}
		1769
		1770	=item cf::map::unique_maps
		1771
		1772	Returns an arrayref of paths of all shared maps that have
		1773	instantiated unique items. May block.
		1774
		1775	=cut
		1776
		1777	sub unique_maps() {
		1778	my $files = aio_readdir $UNIQUEDIR
		1779	or return;
		1780
		1781	my @paths;
		1782
		1783	for (@$files) {
		1784	utf8::decode $_;
		1785	next if /\.pst$/;
		1786	next unless /^$PATH_SEP/o;
		1787
		1788	push @paths, cf::map::normalise $_;
1281	};	1789	}
1282		1790
1283	warn "end emergency map save\n";	1791	\@paths
1284	}	1792	}
1285		1793
1286	package cf;	1794	package cf;
1287		1795
1288	=back	1796	=back
1289		1797
		1798	=head3 cf::object
		1799
		1800	=cut
		1801
		1802	package cf::object;
		1803
		1804	=over 4
		1805
		1806	=item $ob->inv_recursive
		1807
		1808	Returns the inventory of the object _and_ their inventories, recursively.
		1809
		1810	=cut
		1811
		1812	sub inv_recursive_;
		1813	sub inv_recursive_ {
		1814	map { $_, inv_recursive_ $_->inv } @_
		1815	}
		1816
		1817	sub inv_recursive {
		1818	inv_recursive_ inv $_[0]
		1819	}
		1820
		1821	package cf;
		1822
		1823	=back
1290		1824
1291	=head3 cf::object::player	1825	=head3 cf::object::player
1292		1826
1293	=over 4	1827	=over 4
1294		1828
…		…
1330	(ref $cf::CFG{"may_$access"}	1864	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1865	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	1866	: $cf::CFG{"may_$access"})
1333	}	1867	}
1334		1868
		1869	=item $player_object->enter_link
		1870
		1871	Freezes the player and moves him/her to a special map (C<{link}>).
		1872
		1873	The player should be reasonably safe there for short amounts of time. You
		1874	I<MUST> call C<leave_link> as soon as possible, though.
		1875
		1876	Will never block.
		1877
		1878	=item $player_object->leave_link ($map, $x, $y)
		1879
		1880	Moves the player out of the special C<{link}> map onto the specified
		1881	map. If the map is not valid (or omitted), the player will be moved back
		1882	to the location he/she was before the call to C<enter_link>, or, if that
		1883	fails, to the emergency map position.
		1884
		1885	Might block.
		1886
		1887	=cut
		1888
		1889	sub link_map {
		1890	unless ($LINK_MAP) {
		1891	$LINK_MAP = cf::map::find "{link}"
		1892	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1893	$LINK_MAP->load;
		1894	}
		1895
		1896	$LINK_MAP
		1897	}
		1898
1335	sub cf::object::player::enter_link {	1899	sub cf::object::player::enter_link {
1336	my ($self) = @_;	1900	my ($self) = @_;
1337		1901
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;	1902	$self->deactivate_recursive;
		1903
		1904	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1905
		1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1907	if $self->map && $self->map->{path} ne "{link}";
		1908
		1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1345	}	1910	}
1346		1911
1347	sub cf::object::player::leave_link {	1912	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	1913	my ($self, $map, $x, $y) = @_;
1349		1914
		1915	return unless $self->contr->active;
		1916
1350	my $link_pos = delete $self->{_link_pos};	1917	my $link_pos = delete $self->{_link_pos};
1351		1918
1352	unless ($map) {	1919	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	1920	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	1921	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	1922	$map = cf::map::find $map;
1358		1923
1359	unless ($map) {	1924	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	1925	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	1926	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	1927	or die "FATAL: cannot load emergency map\n";
1363	}	1928	}
1364	}	1929	}
1365		1930
1366	($x, $y) = (-1, -1)	1931	($x, $y) = (-1, -1)
…		…
1369	# use -1 or undef as default coordinates, not 0, 0	1934	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	1935	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	1936	if $x <=0 && $y <= 0;
1372		1937
1373	$map->load;	1938	$map->load;
		1939	$map->load_diag;
1374		1940
		1941	return unless $self->contr->active;
1375	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1376	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1377	}	1946	}
1378		1947
1379	=item $player_object->goto_map ($map, $x, $y)	1948	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1380		1949
1381	=cut	1950	Moves the player to the given map-path and coordinates by first freezing
		1951	her, loading and preparing them map, calling the provided $check callback
		1952	that has to return the map if sucecssful, and then unfreezes the player on
		1953	the new (success) or old (failed) map position.
1382		1954
		1955	=cut
		1956
		1957	our $GOTOGEN;
		1958
1383	sub cf::object::player::goto_map {	1959	sub cf::object::player::goto {
1384	my ($self, $path, $x, $y) = @_;	1960	my ($self, $path, $x, $y, $check) = @_;
		1961
		1962	# do generation counting so two concurrent goto's will be executed in-order
		1963	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1385		1964
1386	$self->enter_link;	1965	$self->enter_link;
1387		1966
1388	(Coro::async {	1967	(async {
1389	$path = new cf::path $path;	1968	my $map = eval {
1390
1391	my $map = cf::map::find_map $path->as_string;	1969	my $map = cf::map::find $path;
		1970
		1971	if ($map) {
1392	$map = $map->customise_for ($self) if $map;	1972	$map = $map->customise_for ($self);
		1973	$map = $check->($map) if $check && $map;
		1974	} else {
		1975	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1976	}
1393		1977
1394	warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	1978	$map
		1979	};
1396		1980
		1981	if ($@) {
		1982	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1983	LOG llevError | logBacktrace, Carp::longmess $@;
		1984	}
		1985
		1986	if ($gen == $self->{_goto_generation}) {
		1987	delete $self->{_goto_generation};
1397	$self->leave_link ($map, $x, $y);	1988	$self->leave_link ($map, $x, $y);
		1989	}
1398	})->prio (1);	1990	})->prio (1);
1399	}	1991	}
1400		1992
1401	=item $player_object->enter_exit ($exit_object)	1993	=item $player_object->enter_exit ($exit_object)
1402		1994
…		…
1404		1996
1405	sub parse_random_map_params {	1997	sub parse_random_map_params {
1406	my ($spec) = @_;	1998	my ($spec) = @_;
1407		1999
1408	my $rmp = { # defaults	2000	my $rmp = { # defaults
1409	xsize => 10,	2001	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	2002	ysize => (cf::rndm 15, 40),
		2003	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2004	#layout => string,
1411	};	2005	};
1412		2006
1413	for (split /\n/, $spec) {	2007	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	2008	my ($k, $v) = split /\s+/, $_, 2;
1415		2009
…		…
1419	$rmp	2013	$rmp
1420	}	2014	}
1421		2015
1422	sub prepare_random_map {	2016	sub prepare_random_map {
1423	my ($exit) = @_;	2017	my ($exit) = @_;
		2018
		2019	my $guard = cf::lock_acquire "exit_prepare:$exit";
1424		2020
1425	# all this does is basically replace the /! path by	2021	# all this does is basically replace the /! path by
1426	# a new random map path (?random/...) with a seed	2022	# a new random map path (?random/...) with a seed
1427	# that depends on the exit object	2023	# that depends on the exit object
1428		2024
1429	my $rmp = parse_random_map_params $exit->msg;	2025	my $rmp = parse_random_map_params $exit->msg;
1430		2026
1431	if ($exit->map) {	2027	if ($exit->map) {
1432	$rmp->{region} = $exit->map->region_name;	2028	$rmp->{region} = $exit->region->name;
1433	$rmp->{origin_map} = $exit->map->path;	2029	$rmp->{origin_map} = $exit->map->path;
1434	$rmp->{origin_x} = $exit->x;	2030	$rmp->{origin_x} = $exit->x;
1435	$rmp->{origin_y} = $exit->y;	2031	$rmp->{origin_y} = $exit->y;
1436	}	2032	}
1437		2033
1438	$rmp->{random_seed} ||= $exit->random_seed;	2034	$rmp->{random_seed} ||= $exit->random_seed;
1439		2035
1440	my $data = cf::to_json $rmp;	2036	my $data = cf::to_json $rmp;
1441	my $md5 = Digest::MD5::md5_hex $data;	2037	my $md5 = Digest::MD5::md5_hex $data;
		2038	my $meta = "$RANDOMDIR/$md5.meta";
1442		2039
1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2040	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1444	aio_write $fh, 0, (length $data), $data, 0;	2041	aio_write $fh, 0, (length $data), $data, 0;
		2042	undef $fh;
		2043	aio_rename "$meta~", $meta;
1445		2044
1446	$exit->slaying ("?random/$md5");	2045	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	2046	$exit->msg (undef);
1448	}	2047	}
1449	}	2048	}
…		…
1451	sub cf::object::player::enter_exit {	2050	sub cf::object::player::enter_exit {
1452	my ($self, $exit) = @_;	2051	my ($self, $exit) = @_;
1453		2052
1454	return unless $self->type == cf::PLAYER;	2053	return unless $self->type == cf::PLAYER;
1455		2054
		2055	if ($exit->slaying eq "/!") {
		2056	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2057	# the problem is that $exit might not survive long enough
		2058	# so it needs to be done right now, right here
		2059	cf::sync_job { prepare_random_map $exit };
		2060	}
		2061
		2062	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2063	my $hp = $exit->stats->hp;
		2064	my $sp = $exit->stats->sp;
		2065
1456	$self->enter_link;	2066	$self->enter_link;
1457		2067
1458	(Coro::async {	2068	(async {
		2069	$self->deactivate_recursive; # just to be sure
1459	unless (eval {	2070	unless (eval {
1460		2071	$self->goto ($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		2072
1467	1;	2073	1;
1468	}) {	2074	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	2075	$self->message ("Something went wrong deep within the crossfire server. "
1470	. "I'll try to bring you back to the map you were before. "	2076	. "I'll try to bring you back to the map you were before. "
1471	. "Please report this to the dungeon master",	2077	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	2078	cf::NDI_UNIQUE | cf::NDI_RED);
1473		2079
1474	warn "ERROR in enter_exit: $@";	2080	warn "ERROR in enter_exit: $@";
1475	$self->leave_link;	2081	$self->leave_link;
1476	}	2082	}
1477	})->prio (1);	2083	})->prio (1);
…		…
1490		2096
1491	sub cf::client::send_drawinfo {	2097	sub cf::client::send_drawinfo {
1492	my ($self, $text, $flags) = @_;	2098	my ($self, $text, $flags) = @_;
1493		2099
1494	utf8::encode $text;	2100	utf8::encode $text;
1495	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2101	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1496	}	2102	}
1497		2103
		2104	=item $client->ext_event ($type, %msg)
		2105
		2106	Sends an exti event to the client.
		2107
		2108	=cut
		2109
		2110	sub cf::client::ext_event($$%) {
		2111	my ($self, $type, %msg) = @_;
		2112
		2113	$msg{msgtype} = "event_$type";
		2114	$self->send_packet ("ext " . cf::to_json \%msg);
		2115	}
1498		2116
1499	=item $success = $client->query ($flags, "text", \&cb)	2117	=item $success = $client->query ($flags, "text", \&cb)
1500		2118
1501	Queues a query to the client, calling the given callback with	2119	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>,	2120	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1527	on_reply => sub {	2145	on_reply => sub {
1528	my ($ns, $msg) = @_;	2146	my ($ns, $msg) = @_;
1529		2147
1530	# this weird shuffling is so that direct followup queries	2148	# this weird shuffling is so that direct followup queries
1531	# get handled first	2149	# get handled first
1532	my $queue = delete $ns->{query_queue};	2150	my $queue = delete $ns->{query_queue}
		2151	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		2152
1534	(shift @$queue)->[1]->($msg);	2153	(shift @$queue)->[1]->($msg);
		2154	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1535		2155
1536	push @{ $ns->{query_queue} }, @$queue;	2156	push @{ $ns->{query_queue} }, @$queue;
1537		2157
1538	if (@{ $ns->{query_queue} } == @$queue) {	2158	if (@{ $ns->{query_queue} } == @$queue) {
1539	if (@$queue) {	2159	if (@$queue) {
…		…
1543	}	2163	}
1544	}	2164	}
1545	},	2165	},
1546	);	2166	);
1547		2167
1548	=item $client->coro (\&cb)	2168	=item $client->async (\&cb)
1549		2169
1550	Create a new coroutine, running the specified callback. The coroutine will	2170	Create a new coroutine, running the specified callback. The coroutine will
1551	be automatically cancelled when the client gets destroyed (e.g. on logout,	2171	be automatically cancelled when the client gets destroyed (e.g. on logout,
1552	or loss of connection).	2172	or loss of connection).
1553		2173
1554	=cut	2174	=cut
1555		2175
1556	sub cf::client::coro {	2176	sub cf::client::async {
1557	my ($self, $cb) = @_;	2177	my ($self, $cb) = @_;
1558		2178
1559	my $coro; $coro = async {	2179	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		2180
1566	$coro->on_destroy (sub {	2181	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	2182	delete $self->{_coro}{$coro+0};
1568	});	2183	});
1569		2184
…		…
1602		2217
1603	# here we export the classes and methods available to script code	2218	# here we export the classes and methods available to script code
1604		2219
1605	=pod	2220	=pod
1606		2221
1607	The following fucntions and emthods are available within a safe environment:	2222	The following functions and methods are available within a safe environment:
1608		2223
1609	cf::object contr pay_amount pay_player map	2224	cf::object contr pay_amount pay_player map
1610	cf::object::player player	2225	cf::object::player player
1611	cf::player peaceful	2226	cf::player peaceful
1612	cf::map trigger	2227	cf::map trigger
…		…
1697	#############################################################################	2312	#############################################################################
1698		2313
1699	=head2 EXTENSION DATABASE SUPPORT	2314	=head2 EXTENSION DATABASE SUPPORT
1700		2315
1701	Crossfire maintains a very simple database for extension use. It can	2316	Crossfire maintains a very simple database for extension use. It can
1702	currently store anything that can be serialised using Storable, which	2317	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1703	excludes objects.	2318	convert to/from binary).
1704		2319
1705	The parameter C<$family> should best start with the name of the extension	2320	The parameter C<$family> should best start with the name of the extension
1706	using it, it should be unique.	2321	using it, it should be unique.
1707		2322
1708	=over 4	2323	=over 4
1709		2324
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	2325	=item $value = cf::db_get $family => $key
1717		2326
1718	Returns a single value from the database	2327	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		2328
1725	=item cf::db_put $family => $key => $value	2329	=item cf::db_put $family => $key => $value
1726		2330
1727	Stores the given C<$value> in the family hash. Updates are delayed, if you	2331	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		2332
1738	=cut	2333	=cut
1739		2334
1740	our $DB;	2335	our $DB;
1741		2336
1742	{	2337	sub db_init {
1743	my $path = cf::localdir . "/database.pst";	2338	unless ($DB) {
		2339	$DB = BDB::db_create $DB_ENV;
1744		2340
1745	sub db_load() {	2341	cf::sync_job {
1746	warn "loading database $path\n";#d# remove later	2342	eval {
1747	$DB = stat $path ? Storable::retrieve $path : { };	2343	$DB->set_flags (BDB::CHKSUM);
1748	}
1749		2344
1750	my $pid;	2345	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1751		2346	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1752	sub db_save() {	2347	cf::cleanup "db_open(db): $!" if $!;
1753	warn "saving database $path\n";#d# remove later	2348	};
1754	waitpid $pid, 0 if $pid;	2349	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	}	2350	};
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	});	2351	}
		2352	}
1773		2353
1774	sub db_dirty() {
1775	$dirty = 1;
1776	$idle->start;
1777	}
1778
1779	sub db_get($;$) {	2354	sub db_get($$) {
1780	@_ >= 2	2355	my $key = "$_[0]/$_[1]";
1781	? $DB->{$_[0]}{$_[1]}
1782	: ($DB->{$_[0]} ||= { })
1783	}
1784		2356
		2357	cf::sync_job {
		2358	BDB::db_get $DB, undef, $key, my $data;
		2359
		2360	$! ? ()
		2361	: $data
		2362	}
		2363	}
		2364
1785	sub db_put($$;$) {	2365	sub db_put($$$) {
1786	if (@_ >= 3) {	2366	BDB::dbreq_pri 4;
1787	$DB->{$_[0]}{$_[1]} = $_[2];	2367	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1788	} else {	2368	}
1789	$DB->{$_[0]} = $_[1];
1790	}
1791	db_dirty;
1792	}
1793		2369
1794	cf::global->attach (	2370	=item cf::cache $id => [$paths...], $processversion => $process
1795	prio => 10000,	2371
1796	on_cleanup => sub {	2372	Generic caching function that returns the value of the resource $id,
1797	db_sync;	2373	caching and regenerating as required.
		2374
		2375	This function can block.
		2376
		2377	=cut
		2378
		2379	sub cache {
		2380	my ($id, $src, $processversion, $process) = @_;
		2381
		2382	my $meta =
		2383	join "\x00",
		2384	$processversion,
		2385	map {
		2386	aio_stat $_
		2387	and Carp::croak "$_: $!";
		2388
		2389	($_, (stat _)[7,9])
		2390	} @$src;
		2391
		2392	my $dbmeta = db_get cache => "$id/meta";
		2393	if ($dbmeta ne $meta) {
		2394	# changed, we may need to process
		2395
		2396	my @data;
		2397	my $md5;
		2398
		2399	for (0 .. $#$src) {
		2400	0 <= aio_load $src->[$_], $data[$_]
		2401	or Carp::croak "$src->[$_]: $!";
1798	},	2402	}
1799	);	2403
		2404	# if processing is expensive, check
		2405	# checksum first
		2406	if (1) {
		2407	$md5 =
		2408	join "\x00",
		2409	$processversion,
		2410	map {
		2411	Coro::cede;
		2412	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2413	} 0.. $#$src;
		2414
		2415
		2416	my $dbmd5 = db_get cache => "$id/md5";
		2417	if ($dbmd5 eq $md5) {
		2418	db_put cache => "$id/meta", $meta;
		2419
		2420	return db_get cache => "$id/data";
		2421	}
		2422	}
		2423
		2424	my $t1 = Time::HiRes::time;
		2425	my $data = $process->(\@data);
		2426	my $t2 = Time::HiRes::time;
		2427
		2428	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2429
		2430	db_put cache => "$id/data", $data;
		2431	db_put cache => "$id/md5" , $md5;
		2432	db_put cache => "$id/meta", $meta;
		2433
		2434	return $data;
		2435	}
		2436
		2437	db_get cache => "$id/data"
		2438	}
		2439
		2440	=item fork_call { }, $args
		2441
		2442	Executes the given code block with the given arguments in a seperate
		2443	process, returning the results. Everything must be serialisable with
		2444	Coro::Storable. May, of course, block. Note that the executed sub may
		2445	never block itself or use any form of Event handling.
		2446
		2447	=cut
		2448
		2449	sub fork_call(&@) {
		2450	my ($cb, @args) = @_;
		2451
		2452	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2453	# or die "socketpair: $!";
		2454	pipe my $fh1, my $fh2
		2455	or die "pipe: $!";
		2456
		2457	if (my $pid = fork) {
		2458	close $fh2;
		2459
		2460	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2461	$res = Coro::Storable::thaw $res;
		2462
		2463	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2464
		2465	die $$res unless "ARRAY" eq ref $res;
		2466
		2467	return wantarray ? @$res : $res->[-1];
		2468	} else {
		2469	reset_signals;
		2470	local $SIG{__WARN__};
		2471	local $SIG{__DIE__};
		2472	eval {
		2473	close $fh1;
		2474
		2475	my @res = eval { $cb->(@args) };
		2476	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2477	};
		2478
		2479	warn $@ if $@;
		2480	_exit 0;
		2481	}
1800	}	2482	}
1801		2483
1802	#############################################################################	2484	#############################################################################
1803	# the server's main()	2485	# the server's init and main functions
		2486
		2487	sub load_facedata($) {
		2488	my ($path) = @_;
		2489
		2490	warn "loading facedata from $path\n";
		2491
		2492	my $facedata;
		2493	0 < aio_load $path, $facedata
		2494	or die "$path: $!";
		2495
		2496	$facedata = Coro::Storable::thaw $facedata;
		2497
		2498	$facedata->{version} == 2
		2499	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2500
		2501	{
		2502	my $faces = $facedata->{faceinfo};
		2503
		2504	while (my ($face, $info) = each %$faces) {
		2505	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2506	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2507	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2508	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2509	Coro::cede;
		2510	}
		2511
		2512	while (my ($face, $info) = each %$faces) {
		2513	next unless $info->{smooth};
		2514	my $idx = cf::face::find $face
		2515	or next;
		2516	if (my $smooth = cf::face::find $info->{smooth}) {
		2517	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2518	} else {
		2519	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2520	}
		2521	Coro::cede;
		2522	}
		2523	}
		2524
		2525	{
		2526	my $anims = $facedata->{animinfo};
		2527
		2528	while (my ($anim, $info) = each %$anims) {
		2529	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2530	Coro::cede;
		2531	}
		2532
		2533	cf::anim::invalidate_all; # d'oh
		2534	}
		2535
		2536	1
		2537	}
		2538
		2539	sub reload_regions {
		2540	load_resource_file "$MAPDIR/regions"
		2541	or die "unable to load regions file\n";
		2542	}
		2543
		2544	sub reload_facedata {
		2545	load_facedata "$DATADIR/facedata"
		2546	or die "unable to load facedata\n";
		2547	}
		2548
		2549	sub reload_archetypes {
		2550	load_resource_file "$DATADIR/archetypes"
		2551	or die "unable to load archetypes\n";
		2552	}
		2553
		2554	sub reload_treasures {
		2555	load_resource_file "$DATADIR/treasures"
		2556	or die "unable to load treasurelists\n";
		2557	}
		2558
		2559	sub reload_resources {
		2560	warn "reloading resource files...\n";
		2561
		2562	reload_regions;
		2563	reload_facedata;
		2564	reload_archetypes;
		2565	reload_treasures;
		2566
		2567	warn "finished reloading resource files\n";
		2568	}
		2569
		2570	sub init {
		2571	reload_resources;
		2572	}
1804		2573
1805	sub cfg_load {	2574	sub cfg_load {
1806	open my $fh, "<:utf8", cf::confdir . "/config"	2575	open my $fh, "<:utf8", "$CONFDIR/config"
1807	or return;	2576	or return;
1808		2577
1809	local $/;	2578	local $/;
1810	*CFG = YAML::Syck::Load <$fh>;	2579	*CFG = YAML::Syck::Load <$fh>;
		2580
		2581	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2582
		2583	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2584	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2585
		2586	if (exists $CFG{mlockall}) {
		2587	eval {
		2588	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2589	and die "WARNING: m(un)lockall failed: $!\n";
		2590	};
		2591	warn $@ if $@;
		2592	}
1811	}	2593	}
1812		2594
1813	sub main {	2595	sub main {
1814	# we must not ever block the main coroutine	2596	# we must not ever block the main coroutine
1815	local $Coro::idle = sub {	2597	local $Coro::idle = sub {
1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2598	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1817	(Coro::unblock_sub {	2599	(async {
1818	Event::one_event;	2600	Event::one_event;
1819	})->();	2601	})->prio (Coro::PRIO_MAX);
1820	};	2602	};
1821		2603
1822	cfg_load;	2604	cfg_load;
1823	db_load;	2605	db_init;
1824	load_extensions;	2606	load_extensions;
		2607
		2608	$TICK_WATCHER->start;
1825	Event::loop;	2609	Event::loop;
1826	}	2610	}
1827		2611
1828	#############################################################################	2612	#############################################################################
1829	# initialisation	2613	# initialisation and cleanup
1830		2614
1831	sub perl_reload() {	2615	# install some emergency cleanup handlers
		2616	BEGIN {
		2617	for my $signal (qw(INT HUP TERM)) {
		2618	Event->signal (
		2619	reentrant => 0,
		2620	data => WF_AUTOCANCEL,
		2621	signal => $signal,
		2622	prio => 0,
		2623	cb => sub {
		2624	cf::cleanup "SIG$signal";
		2625	},
		2626	);
		2627	}
		2628	}
		2629
		2630	sub emergency_save() {
		2631	my $freeze_guard = cf::freeze_mainloop;
		2632
		2633	warn "enter emergency perl save\n";
		2634
		2635	cf::sync_job {
		2636	# use a peculiar iteration method to avoid tripping on perl
		2637	# refcount bugs in for. also avoids problems with players
		2638	# and maps saved/destroyed asynchronously.
		2639	warn "begin emergency player save\n";
		2640	for my $login (keys %cf::PLAYER) {
		2641	my $pl = $cf::PLAYER{$login} or next;
		2642	$pl->valid or next;
		2643	$pl->save;
		2644	}
		2645	warn "end emergency player save\n";
		2646
		2647	warn "begin emergency map save\n";
		2648	for my $path (keys %cf::MAP) {
		2649	my $map = $cf::MAP{$path} or next;
		2650	$map->valid or next;
		2651	$map->save;
		2652	}
		2653	warn "end emergency map save\n";
		2654
		2655	warn "begin emergency database checkpoint\n";
		2656	BDB::db_env_txn_checkpoint $DB_ENV;
		2657	warn "end emergency database checkpoint\n";
		2658	};
		2659
		2660	warn "leave emergency perl save\n";
		2661	}
		2662
		2663	sub post_cleanup {
		2664	my ($make_core) = @_;
		2665
		2666	warn Carp::longmess "post_cleanup backtrace"
		2667	if $make_core;
		2668	}
		2669
		2670	sub do_reload_perl() {
1832	# can/must only be called in main	2671	# can/must only be called in main
1833	if ($Coro::current != $Coro::main) {	2672	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	2673	warn "can only reload from main coroutine";
1835	return;	2674	return;
1836	}	2675	}
1837		2676
1838	warn "reloading...";	2677	warn "reloading...";
1839		2678
1840	local $FREEZE = 1;	2679	warn "entering sync_job";
		2680
		2681	cf::sync_job {
		2682	cf::write_runtime; # external watchdog should not bark
1841	cf::emergency_save;	2683	cf::emergency_save;
		2684	cf::write_runtime; # external watchdog should not bark
1842		2685
1843	eval {	2686	warn "syncing database to disk";
		2687	BDB::db_env_txn_checkpoint $DB_ENV;
		2688
1844	# if anything goes wrong in here, we should simply crash as we already saved	2689	# if anything goes wrong in here, we should simply crash as we already saved
1845		2690
1846	# cancel all watchers	2691	warn "cancelling all WF_AUTOCANCEL watchers";
1847	for (Event::all_watchers) {	2692	for (Event::all_watchers) {
1848	$_->cancel if $_->data & WF_AUTOCANCEL;	2693	$_->cancel if $_->data & WF_AUTOCANCEL;
1849	}	2694	}
1850		2695
		2696	warn "flushing outstanding aio requests";
		2697	for (;;) {
		2698	BDB::flush;
		2699	IO::AIO::flush;
		2700	Coro::cede;
		2701	last unless IO::AIO::nreqs || BDB::nreqs;
		2702	warn "iterate...";
		2703	}
		2704
		2705	++$RELOAD;
		2706
1851	# cancel all extension coros	2707	warn "cancelling all extension coros";
1852	$_->cancel for values %EXT_CORO;	2708	$_->cancel for values %EXT_CORO;
1853	%EXT_CORO = ();	2709	%EXT_CORO = ();
1854		2710
1855	# unload all extensions	2711	warn "removing commands";
1856	for (@exts) {	2712	%COMMAND = ();
		2713
		2714	warn "removing ext commands";
		2715	%EXTCMD = ();
		2716
		2717	warn "unloading/nuking all extensions";
		2718	for my $pkg (@EXTS) {
1857	warn "unloading <$_>";	2719	warn "... unloading $pkg";
1858	unload_extension $_;	2720
		2721	if (my $cb = $pkg->can ("unload")) {
		2722	eval {
		2723	$cb->($pkg);
		2724	1
		2725	} or warn "$pkg unloaded, but with errors: $@";
1859	}	2726	}
1860		2727
		2728	warn "... nuking $pkg";
		2729	Symbol::delete_package $pkg;
		2730	}
		2731
1861	# unload all modules loaded from $LIBDIR	2732	warn "unloading all perl modules loaded from $LIBDIR";
1862	while (my ($k, $v) = each %INC) {	2733	while (my ($k, $v) = each %INC) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2734	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1864		2735
1865	warn "removing <$k>";	2736	warn "... unloading $k";
1866	delete $INC{$k};	2737	delete $INC{$k};
1867		2738
1868	$k =~ s/\.pm$//;	2739	$k =~ s/\.pm$//;
1869	$k =~ s/\//::/g;	2740	$k =~ s/\//::/g;
1870		2741
…		…
1873	}	2744	}
1874		2745
1875	Symbol::delete_package $k;	2746	Symbol::delete_package $k;
1876	}	2747	}
1877		2748
1878	# sync database to disk
1879	cf::db_sync;
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible	2749	warn "getting rid of safe::, as good as possible";
1883	Symbol::delete_package "safe::$_"	2750	Symbol::delete_package "safe::$_"
1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2751	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1885		2752
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"	2753	warn "unloading cf.pm \"a bit\"";
1890	delete $INC{"cf.pm"};	2754	delete $INC{"cf.pm"};
		2755	delete $INC{"cf/pod.pm"};
1891		2756
1892	# don't, removes xs symbols, too,	2757	# don't, removes xs symbols, too,
1893	# and global variables created in xs	2758	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;	2759	#Symbol::delete_package __PACKAGE__;
1895		2760
1896	# reload cf.pm	2761	warn "unload completed, starting to reload now";
		2762
1897	warn "reloading cf.pm";	2763	warn "reloading cf.pm";
1898	require cf;	2764	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2765	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900		2766
1901	# load config and database again	2767	warn "loading config and database again";
1902	cf::cfg_load;	2768	cf::cfg_load;
1903	cf::db_load;
1904		2769
1905	# load extensions
1906	warn "load extensions";	2770	warn "loading extensions";
1907	cf::load_extensions;	2771	cf::load_extensions;
1908		2772
1909	# reattach attachments to objects	2773	warn "reattaching attachments to objects/players";
1910	warn "reattach";	2774	_global_reattach; # objects, sockets
1911	_global_reattach;	2775	warn "reattaching attachments to maps";
1912	};	2776	reattach $_ for values %MAP;
		2777	warn "reattaching attachments to players";
		2778	reattach $_ for values %PLAYER;
1913		2779
1914	if ($@) {	2780	warn "leaving sync_job";
		2781
		2782	1
		2783	} or do {
1915	warn $@;	2784	warn $@;
1916	warn "error while reloading, exiting.";	2785	warn "error while reloading, exiting.";
1917	exit 1;	2786	exit 1;
1918	}	2787	};
1919		2788
1920	warn "reloaded successfully";	2789	warn "reloaded";
1921	};	2790	};
1922		2791
1923	#############################################################################	2792	our $RELOAD_WATCHER; # used only during reload
1924		2793
1925	unless ($LINK_MAP) {	2794	sub reload_perl() {
1926	$LINK_MAP = cf::map::new;	2795	# doing reload synchronously and two reloads happen back-to-back,
		2796	# coro crashes during coro_state_free->destroy here.
1927		2797
1928	$LINK_MAP->width (41);	2798	$RELOAD_WATCHER ||= Event->timer (
1929	$LINK_MAP->height (41);	2799	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,	2800	after => 0,
		2801	data => WF_AUTOCANCEL,
1938	cb => sub {	2802	cb => sub {
1939	$_[0]->w->cancel;	2803	do_reload_perl;
1940		2804	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	});	2805	},
1959		2806	);
1960	$LINK_MAP->{deny_save} = 1;
1961	$LINK_MAP->{deny_reset} = 1;
1962
1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1964	}	2807	}
1965		2808
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {	2809	register_command "reload" => sub {
1969	my ($who, $arg) = @_;	2810	my ($who, $arg) = @_;
1970		2811
1971	if ($who->flag (FLAG_WIZ)) {	2812	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end of reload.");	2813	$who->message ("reloading server.");
		2814	async { reload_perl };
1975	}	2815	}
1976	};	2816	};
1977		2817
1978	unshift @INC, $LIBDIR;	2818	unshift @INC, $LIBDIR;
1979		2819
		2820	my $bug_warning = 0;
		2821
		2822	our @WAIT_FOR_TICK;
		2823	our @WAIT_FOR_TICK_BEGIN;
		2824
		2825	sub wait_for_tick {
		2826	return unless $TICK_WATCHER->is_active;
		2827	return if $Coro::current == $Coro::main;
		2828
		2829	my $signal = new Coro::Signal;
		2830	push @WAIT_FOR_TICK, $signal;
		2831	$signal->wait;
		2832	}
		2833
		2834	sub wait_for_tick_begin {
		2835	return unless $TICK_WATCHER->is_active;
		2836	return if $Coro::current == $Coro::main;
		2837
		2838	my $signal = new Coro::Signal;
		2839	push @WAIT_FOR_TICK_BEGIN, $signal;
		2840	$signal->wait;
		2841	}
		2842
		2843	my $min = 1e6;#d#
		2844	my $avg = 10;
1980	$TICK_WATCHER = Event->timer (	2845	$TICK_WATCHER = Event->timer (
1981	reentrant => 0,	2846	reentrant => 0,
		2847	parked => 1,
1982	prio => 0,	2848	prio => 0,
1983	at => $NEXT_TICK || $TICK,	2849	at => $NEXT_TICK || $TICK,
1984	data => WF_AUTOCANCEL,	2850	data => WF_AUTOCANCEL,
1985	cb => sub {	2851	cb => sub {
1986	unless ($FREEZE) {	2852	if ($Coro::current != $Coro::main) {
		2853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2854	unless ++$bug_warning > 10;
		2855	return;
		2856	}
		2857
		2858	$NOW = $tick_start = Event::time;
		2859
1987	cf::server_tick; # one server iteration	2860	cf::server_tick; # one server iteration
1988	$RUNTIME += $TICK;	2861
		2862	0 && sync_job {#d#
		2863	for(1..10) {
		2864	my $t = Event::time;
		2865	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2866	or die;
		2867
		2868	$map->width (50);
		2869	$map->height (50);
		2870	$map->alloc;
		2871	$map->_load_objects ("/tmp/x.map", 1);
		2872	my $t = Event::time - $t;
		2873
		2874	#next unless $t < 0.0013;#d#
		2875	if ($t < $min) {
		2876	$min = $t;
		2877	}
		2878	$avg = $avg * 0.99 + $t * 0.01;
		2879	}
		2880	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2881	exit 0;
		2882	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1989	}	2883	};
1990		2884
		2885	$RUNTIME += $TICK;
1991	$NEXT_TICK += $TICK;	2886	$NEXT_TICK += $TICK;
1992		2887
		2888	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2889	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2890	Coro::async_pool {
		2891	write_runtime
		2892	or warn "ERROR: unable to write runtime file: $!";
		2893	};
		2894	}
		2895
		2896	# my $AFTER = Event::time;
		2897	# warn $AFTER - $NOW;#d#
		2898
		2899	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2900	$sig->send;
		2901	}
		2902	while (my $sig = shift @WAIT_FOR_TICK) {
		2903	$sig->send;
		2904	}
		2905
		2906	$NOW = Event::time;
		2907
1993	# if we are delayed by four ticks or more, skip them all	2908	# if we are delayed by four ticks or more, skip them all
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2909	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1995		2910
1996	$TICK_WATCHER->at ($NEXT_TICK);	2911	$TICK_WATCHER->at ($NEXT_TICK);
1997	$TICK_WATCHER->start;	2912	$TICK_WATCHER->start;
		2913
		2914	$LOAD = ($NOW - $tick_start) / $TICK;
		2915	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2916
		2917	_post_tick;
		2918
		2919
1998	},	2920	},
1999	);	2921	);
2000		2922
		2923	{
2001	IO::AIO::max_poll_time $TICK * 0.2;	2924	BDB::max_poll_time $TICK * 0.1;
2002		2925	$BDB_POLL_WATCHER = Event->io (
2003	Event->io (	2926	reentrant => 0,
2004	fd => IO::AIO::poll_fileno,	2927	fd => BDB::poll_fileno,
2005	poll => 'r',	2928	poll => 'r',
2006	prio => 5,	2929	prio => 0,
2007	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,
2009	);
2010
2011	Event->timer (
2012	data => WF_AUTOCANCEL,	2930	data => WF_AUTOCANCEL,
2013	after => 0,	2931	cb => \&BDB::poll_cb,
2014	interval => 10,	2932	);
2015	cb => sub {	2933	BDB::min_parallel 8;
2016	(Coro::unblock_sub {	2934
2017	write_runtime	2935	BDB::set_sync_prepare {
2018	or warn "ERROR: unable to write runtime file: $!";	2936	my $status;
		2937	my $current = $Coro::current;
		2938	(
		2939	sub {
		2940	$status = $!;
		2941	$current->ready; undef $current;
		2942	},
		2943	sub {
		2944	Coro::schedule while defined $current;
		2945	$! = $status;
		2946	},
		2947	)
		2948	};
		2949
		2950	unless ($DB_ENV) {
		2951	$DB_ENV = BDB::db_env_create;
		2952
		2953	cf::sync_job {
		2954	eval {
		2955	BDB::db_env_open
		2956	$DB_ENV,
		2957	$BDBDIR,
		2958	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2959	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2960	0666;
		2961
		2962	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2963
		2964	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2965	$DB_ENV->set_lk_detect;
		2966	};
		2967
		2968	cf::cleanup "db_env_open(db): $@" if $@;
2019	})->();	2969	};
2020	},	2970	}
2021	);	2971	}
		2972
		2973	{
		2974	IO::AIO::min_parallel 8;
		2975
		2976	undef $Coro::AIO::WATCHER;
		2977	IO::AIO::max_poll_time $TICK * 0.1;
		2978	$AIO_POLL_WATCHER = Event->io (
		2979	reentrant => 0,
		2980	data => WF_AUTOCANCEL,
		2981	fd => IO::AIO::poll_fileno,
		2982	poll => 'r',
		2983	prio => 6,
		2984	cb => \&IO::AIO::poll_cb,
		2985	);
		2986	}
		2987
		2988	my $_log_backtrace;
		2989
		2990	sub _log_backtrace {
		2991	my ($msg, @addr) = @_;
		2992
		2993	$msg =~ s/\n//;
		2994
		2995	# limit the # of concurrent backtraces
		2996	if ($_log_backtrace < 2) {
		2997	++$_log_backtrace;
		2998	async {
		2999	my @bt = fork_call {
		3000	@addr = map { sprintf "%x", $_ } @addr;
		3001	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3002	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3003	or die "addr2line: $!";
		3004
		3005	my @funcs;
		3006	my @res = <$fh>;
		3007	chomp for @res;
		3008	while (@res) {
		3009	my ($func, $line) = splice @res, 0, 2, ();
		3010	push @funcs, "[$func] $line";
		3011	}
		3012
		3013	@funcs
		3014	};
		3015
		3016	LOG llevInfo, "[ABT] $msg\n";
		3017	LOG llevInfo, "[ABT] $_\n" for @bt;
		3018	--$_log_backtrace;
		3019	};
		3020	} else {
		3021	LOG llevInfo, "[ABT] $msg\n";
		3022	LOG llevInfo, "[ABT] [suppressed]\n";
		3023	}
		3024	}
		3025
		3026	# load additional modules
		3027	use cf::pod;
		3028
		3029	END { cf::emergency_save }
2022		3030
2023	1	3031	1
2024		3032

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