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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 2007 UTC vs.
Revision 1.269 by root, Tue May 22 21:35:26 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 ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	323	always able to handle events or runnable, as crossfire+ is only partly
…		…
198		332
199	sub sync_job(&) {	333	sub sync_job(&) {
200	my ($job) = @_;	334	my ($job) = @_;
201		335
202	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
203	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
205		341
206	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	343	# (but this is cancel-safe)
208	local $FREEZE = 1;	344	my $freeze_guard = freeze_mainloop;
209		345
210	my $busy = 1;	346	my $busy = 1;
211	my @res;	347	my @res;
212		348
213	(Coro::async {	349	(async {
214	@res = eval { $job->() };	350	@res = eval { $job->() };
215	warn $@ if $@;	351	warn $@ if $@;
216	undef $busy;	352	undef $busy;
217	})->prio (Coro::PRIO_MAX);	353	})->prio (Coro::PRIO_MAX);
218		354
219	while ($busy) {	355	while ($busy) {
220	Coro::cede_notself;	356	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	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
223		365
224	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
225	} else {	367	} else {
226	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
227		369
228	$job->()	370	$job->()
229	}	371	}
230	}	372	}
231		373
232	=item $coro = cf::coro { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
233		375
234	Creates and returns a new coro. This coro is automcatially being canceled	376	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	377	extension calling this is being unloaded.
236		378
237	=cut	379	=cut
238		380
239	sub coro(&) {	381	sub async_ext(&) {
240	my $cb = shift;	382	my $cb = shift;
241		383
242	my $coro; $coro = async {	384	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		385
249	$coro->on_destroy (sub {	386	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	387	delete $EXT_CORO{$coro+0};
251	});	388	});
252	$EXT_CORO{$coro+0} = $coro;	389	$EXT_CORO{$coro+0} = $coro;
253		390
254	$coro	391	$coro
255	}	392	}
256		393
257	sub write_runtime {	394	sub write_runtime {
258	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	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		401	utime undef, undef, $fh;
		402	}
		403
		404	my $guard = cf::lock_acquire "write_runtime";
259		405
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	407	or return;
262		408
		409	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	410	# 10 is the runtime save interval, for a monotonic clock
		411	# 60 allows for the watchdog to kill the server.
		412
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	414	and return;
266		415
		416	# always fsync - this file is important
267	aio_fsync $fh	417	aio_fsync $fh
268	and return;	418	and return;
269		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
270	close $fh	423	close $fh
271	or return;	424	or return;
272		425
273	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
274	and return;	427	and return;
275		428
		429	warn "runtime file written.\n";#d#
		430
276	1	431	1
277	}	432	}
278		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
279	=back	445	=back
280		446
281	=cut	447	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392		448
393	#############################################################################	449	#############################################################################
394		450
395	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
396		452
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	579	our @CB_MAP = ();
524		580
525	my %attachment;	581	my %attachment;
526		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
527	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
529		591
530	use sort 'stable';	592	use sort 'stable';
531		593
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	627	$registry = $CB_TYPE[$object_type] ||= [];
566		628
567	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		633
572	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	635	my $pkg = shift @arg;
574		636
575	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
616	if (ref $_[0]) {	678	if (ref $_[0]) {
617	_object_attach @_;	679	_object_attach @_;
618	} else {	680	} else {
619	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
620	}	682	}
		683	_recalc_want;
621	};	684	};
622		685
623	# all those should be optimised	686	# all those should be optimised
624	sub cf::attachable::detach {	687	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
629	reattach ($obj);	692	reattach ($obj);
630	} else {	693	} else {
631	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
632	}	695	}
		696	_recalc_want;
633	};	697	};
634		698
635	sub cf::attachable::attached {	699	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
637		701
…		…
702	# object support	766	# object support
703		767
704	sub reattach {	768	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	769	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	770	my ($obj) = @_;
		771
		772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		773
708	my $registry = $obj->registry;	774	my $registry = $obj->registry;
709		775
710	@$registry = ();	776	@$registry = ();
711		777
…		…
758	$filename, length $$rdata, scalar @$objs;	824	$filename, length $$rdata, scalar @$objs;
759		825
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	827	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	829	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	830	close $fh;
765		831
766	if (@$objs) {	832	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	833	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	834	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	835	my $data = Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	836	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	837	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	838	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	839	aio_rename "$filename.pst~", "$filename.pst";
774	}	840	}
775	} else {	841	} else {
776	aio_unlink "$filename.pst";	842	aio_unlink "$filename.pst";
…		…
804	or return;	870	or return;
805		871
806	unless (aio_stat "$filename.pst") {	872	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	873	(aio_load "$filename.pst", $av) >= 0
808	or return;	874	or return;
809	$av = eval { (Storable::thaw <$av>)->{objs} };	875	$av = eval { (Storable::thaw $av)->{objs} };
810	}	876	}
811		877
		878	warn sprintf "loading %s (%d)\n",
		879	$filename, length $data, scalar @{$av || []};#d#
812	return ($data, $av);	880	return ($data, $av);
813	}	881	}
814		882
815	#############################################################################	883	#############################################################################
816	# command handling &c	884	# command handling &c
…		…
841	=cut	909	=cut
842		910
843	sub register_extcmd {	911	sub register_extcmd {
844	my ($name, $cb) = @_;	912	my ($name, $cb) = @_;
845		913
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	914	$EXTCMD{$name} = $cb;
850	}	915	}
851		916
852	cf::player->attach (	917	cf::player->attach (
853	on_command => sub {	918	on_command => sub {
854	my ($pl, $name, $params) = @_;	919	my ($pl, $name, $params) = @_;
…		…
867		932
868	my $msg = eval { from_json $buf };	933	my $msg = eval { from_json $buf };
869		934
870	if (ref $msg) {	935	if (ref $msg) {
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	937	if (my %reply = $cb->($pl, $msg)) {
873	$pl->ext_reply ($msg->{msgid}, %reply);	938	$pl->ext_reply ($msg->{msgid}, %reply);
874	}	939	}
875	}	940	}
876	} else {	941	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
879		944
880	cf::override;	945	cf::override;
881	},	946	},
882	);	947	);
883		948
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	949	sub load_extension {
891	my ($path) = @_;	950	my ($path) = @_;
892		951
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
894	my $base = $1;	953	my $base = $1;
895	my $pkg = $1;	954	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;	955	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";	956	$pkg = "ext::$pkg";
898		957
899	warn "loading '$path' into '$pkg'\n";	958	warn "... loading '$path' into '$pkg'\n";
900		959
901	open my $fh, "<:utf8", $path	960	open my $fh, "<:utf8", $path
902	or die "$path: $!";	961	or die "$path: $!";
903		962
904	my $source =	963	my $source =
905	"package $pkg; use strict; use utf8;\n"	964	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"	965	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })	966	. (do { local $/; <$fh> })
908	. "\n};\n1";	967	. "\n};\n1";
909		968
910	eval $source	969	unless (eval $source) {
911	or die $@ ? "$path: $@\n"	970	my $msg = $@ ? "$path: $@\n"
912	: "extension disabled.\n";	971	: "extension disabled.\n";
913		972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
914	push @exts, $pkg;	973	warn $@;
915	$ext_pkg{$base} = $pkg;	974	warn "mandatory extension failed to load, exiting.\n";
916		975	exit 1;
917	# no strict 'refs';	976	}
918	# @{"$pkg\::ISA"} = ext::;	977	die $@;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }	978	}
933		979
934	# remove commands	980	push @EXTS, $pkg;
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}
943	}
944
945	# remove extcmds
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}	981	}
959		982
960	sub load_extensions {	983	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {	984	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	985	next unless -r $ext;
…		…
966	} or warn "$ext not loaded: $@";	989	} or warn "$ext not loaded: $@";
967	}	990	}
968	}	991	}
969		992
970	#############################################################################	993	#############################################################################
971	# load/save/clean perl data associated with a map
972
973	*cf::mapsupport::on_clean = sub {
974	my ($map) = @_;
975
976	my $path = $map->tmpname;
977	defined $path or return;
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}
990
991	# TODO: compatibility cruft, remove when no longer needed
992	cf::player->attach (
993	on_load => sub {
994	my ($pl, $path) = @_;
995
996	for my $o (all_objects $pl->ob) {
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
998	$o->set_ob_key_value ("_perl_data");
999
1000	%$o = %{ Storable::thaw pack "H*", $value };
1001	}
1002	}
1003	},
1004	);
1005
1006	#############################################################################
1007		994
1008	=head2 CORE EXTENSIONS	995	=head2 CORE EXTENSIONS
1009		996
1010	Functions and methods that extend core crossfire objects.	997	Functions and methods that extend core crossfire objects.
1011		998
		999	=cut
		1000
		1001	package cf::player;
		1002
		1003	use Coro::AIO;
		1004
1012	=head3 cf::player	1005	=head3 cf::player
1013		1006
1014	=over 4	1007	=over 4
1015		1008
1016	=item cf::player::exists $login	1009	=item cf::player::find $login
1017		1010
1018	Returns true when the given account exists.	1011	Returns the given player object, loading it if necessary (might block).
1019		1012
1020	=cut	1013	=cut
1021		1014
1022	sub cf::player::exists($) {	1015	sub playerdir($) {
1023	cf::player::find $_[0]	1016	"$PLAYERDIR/"
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1025	}	1018	}
1026		1019
		1020	sub path($) {
		1021	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1022
		1023	(playerdir $login) . "/playerdata"
		1024	}
		1025
		1026	sub find_active($) {
		1027	$cf::PLAYER{$_[0]}
		1028	and $cf::PLAYER{$_[0]}->active
		1029	and $cf::PLAYER{$_[0]}
		1030	}
		1031
		1032	sub exists($) {
		1033	my ($login) = @_;
		1034
		1035	$cf::PLAYER{$login}
		1036	or cf::sync_job { !aio_stat path $login }
		1037	}
		1038
		1039	sub find($) {
		1040	return $cf::PLAYER{$_[0]} || do {
		1041	my $login = $_[0];
		1042
		1043	my $guard = cf::lock_acquire "user_find:$login";
		1044
		1045	$cf::PLAYER{$_[0]} || do {
		1046	# rename old playerfiles to new ones
		1047	#TODO: remove when no longer required
		1048	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1049	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1050	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1051	aio_unlink +(playerdir $login) . "/$login.pl";
		1052
		1053	my $pl = load_pl path $login
		1054	or return;
		1055	$cf::PLAYER{$login} = $pl
		1056	}
		1057	}
		1058	}
		1059
		1060	sub save($) {
		1061	my ($pl) = @_;
		1062
		1063	return if $pl->{deny_save};
		1064
		1065	my $path = path $pl;
		1066	my $guard = cf::lock_acquire "user_save:$path";
		1067
		1068	return if $pl->{deny_save};
		1069
		1070	aio_mkdir playerdir $pl, 0770;
		1071	$pl->{last_save} = $cf::RUNTIME;
		1072
		1073	$pl->save_pl ($path);
		1074	Coro::cede;
		1075	}
		1076
		1077	sub new($) {
		1078	my ($login) = @_;
		1079
		1080	my $self = create;
		1081
		1082	$self->ob->name ($login);
		1083	$self->{deny_save} = 1;
		1084
		1085	$cf::PLAYER{$login} = $self;
		1086
		1087	$self
		1088	}
		1089
		1090	=item $pl->quit_character
		1091
		1092	Nukes the player without looking back. If logged in, the connection will
		1093	be destroyed. May block for a long time.
		1094
		1095	=cut
		1096
		1097	sub quit_character {
		1098	my ($pl) = @_;
		1099
		1100	my $name = $pl->ob->name;
		1101
		1102	$pl->{deny_save} = 1;
		1103	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1104
		1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1106	$pl->deactivate;
		1107	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1108	$pl->ns->destroy if $pl->ns;
		1109
		1110	my $path = playerdir $pl;
		1111	my $temp = "$path~$cf::RUNTIME~deleting~";
		1112	aio_rename $path, $temp;
		1113	delete $cf::PLAYER{$pl->ob->name};
		1114	$pl->destroy;
		1115
		1116	my $prefix = qr<^~\Q$name\E/>;
		1117
		1118	# nuke player maps
		1119	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1120
		1121	IO::AIO::aio_rmtree $temp;
		1122	}
		1123
		1124	=item $pl->kick
		1125
		1126	Kicks a player out of the game. This destroys the connection.
		1127
		1128	=cut
		1129
		1130	sub kick {
		1131	my ($pl, $kicker) = @_;
		1132
		1133	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1134	$pl->killer ("kicked");
		1135	$pl->ns->destroy;
		1136	}
		1137
		1138	=item cf::player::list_logins
		1139
		1140	Returns am arrayref of all valid playernames in the system, can take a
		1141	while and may block, so not sync_job-capable, ever.
		1142
		1143	=cut
		1144
		1145	sub list_logins {
		1146	my $dirs = aio_readdir $PLAYERDIR
		1147	or return [];
		1148
		1149	my @logins;
		1150
		1151	for my $login (@$dirs) {
		1152	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1153	aio_read $fh, 0, 512, my $buf, 0 or next;
		1154	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1155
		1156	utf8::decode $login;
		1157	push @logins, $login;
		1158	}
		1159
		1160	\@logins
		1161	}
		1162
		1163	=item $player->maps
		1164
		1165	Returns an arrayref of map paths that are private for this
		1166	player. May block.
		1167
		1168	=cut
		1169
		1170	sub maps($) {
		1171	my ($pl) = @_;
		1172
		1173	$pl = ref $pl ? $pl->ob->name : $pl;
		1174
		1175	my $files = aio_readdir playerdir $pl
		1176	or return;
		1177
		1178	my @paths;
		1179
		1180	for (@$files) {
		1181	utf8::decode $_;
		1182	next if /\.(?:pl|pst)$/;
		1183	next unless /^$PATH_SEP/o;
		1184
		1185	push @paths, cf::map::normalise "~$pl/$_";
		1186	}
		1187
		1188	\@paths
		1189	}
		1190
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1191	=item $player->ext_reply ($msgid, %msg)
1028		1192
1029	Sends an ext reply to the player.	1193	Sends an ext reply to the player.
1030		1194
1031	=cut	1195	=cut
1032		1196
1033	sub cf::player::ext_reply($$$%) {	1197	sub ext_reply($$%) {
1034	my ($self, $id, %msg) = @_;	1198	my ($self, $id, %msg) = @_;
1035		1199
1036	$msg{msgid} = $id;	1200	$msg{msgid} = $id;
1037		1201
1038	$self->send ("ext " . to_json \%msg);	1202	$self->send ("ext " . cf::to_json \%msg);
		1203	}
		1204
		1205	=item $player->ext_event ($type, %msg)
		1206
		1207	Sends an ext event to the client.
		1208
		1209	=cut
		1210
		1211	sub ext_event($$%) {
		1212	my ($self, $type, %msg) = @_;
		1213
		1214	$self->ns->ext_event ($type, %msg);
		1215	}
		1216
		1217	=head3 cf::region
		1218
		1219	=over 4
		1220
		1221	=cut
		1222
		1223	package cf::region;
		1224
		1225	=item cf::region::find_by_path $path
		1226
		1227	Tries to decuce the probable region for a map knowing only its path.
		1228
		1229	=cut
		1230
		1231	sub find_by_path($) {
		1232	my ($path) = @_;
		1233
		1234	my ($match, $specificity);
		1235
		1236	for my $region (list) {
		1237	if ($region->match && $path =~ $region->match) {
		1238	($match, $specificity) = ($region, $region->specificity)
		1239	if $region->specificity > $specificity;
		1240	}
		1241	}
		1242
		1243	$match
1039	}	1244	}
1040		1245
1041	=back	1246	=back
1042
1043		1247
1044	=head3 cf::map	1248	=head3 cf::map
1045		1249
1046	=over 4	1250	=over 4
1047		1251
…		…
1050	package cf::map;	1254	package cf::map;
1051		1255
1052	use Fcntl;	1256	use Fcntl;
1053	use Coro::AIO;	1257	use Coro::AIO;
1054		1258
		1259	use overload
		1260	'""' => \&as_string,
		1261	fallback => 1;
		1262
1055	our $MAX_RESET = 7200;	1263	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1264	our $DEFAULT_RESET = 3000;
1057		1265
1058	sub generate_random_map {	1266	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1267	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1268	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1269	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1273	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1274	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1277	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1278	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1279	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1280	(cf::region::find $rmp->{region}), $rmp->{custom}
		1281	)
		1282	}
		1283
		1284	=item cf::map->register ($regex, $prio)
		1285
		1286	Register a handler for the map path matching the given regex at the
		1287	givne priority (higher is better, built-in handlers have priority 0, the
		1288	default).
		1289
		1290	=cut
		1291
		1292	sub register {
		1293	my (undef, $regex, $prio) = @_;
		1294	my $pkg = caller;
		1295
		1296	no strict;
		1297	push @{"$pkg\::ISA"}, __PACKAGE__;
		1298
		1299	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1300	}
		1301
		1302	# also paths starting with '/'
		1303	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1304
		1305	sub thawer_merge {
		1306	my ($self, $merge) = @_;
		1307
		1308	# we have to keep some variables in memory intact
		1309	local $self->{path};
		1310	local $self->{load_path};
		1311	local $self->{deny_save};
		1312	local $self->{deny_reset};
		1313
		1314	$self->SUPER::thawer_merge ($merge);
		1315	}
		1316
		1317	sub normalise {
		1318	my ($path, $base) = @_;
		1319
		1320	$path = "$path"; # make sure its a string
		1321
		1322	$path =~ s/\.map$//;
		1323
		1324	# map plan:
		1325	#
		1326	# /! non-realised random map exit (special hack!)
		1327	# {... are special paths that are not being touched
		1328	# ?xxx/... are special absolute paths
		1329	# ?random/... random maps
		1330	# /... normal maps
		1331	# ~user/... per-player map of a specific user
		1332
		1333	$path =~ s/$PATH_SEP/\//go;
		1334
		1335	# treat it as relative path if it starts with
		1336	# something that looks reasonable
		1337	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1338	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1339
		1340	$base =~ s{[^/]+/?$}{};
		1341	$path = "$base/$path";
		1342	}
		1343
		1344	for ($path) {
		1345	redo if s{//}{/};
		1346	redo if s{/\.?/}{/};
		1347	redo if s{/[^/]+/\.\./}{/};
		1348	}
		1349
		1350	$path
		1351	}
		1352
		1353	sub new_from_path {
		1354	my (undef, $path, $base) = @_;
		1355
		1356	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1357
		1358	$path = normalise $path, $base;
		1359
		1360	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1361	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1362	my $self = bless cf::map::new, $pkg;
		1363	$self->{path} = $path; $self->path ($path);
		1364	$self->init; # pass $1 etc.
		1365	return $self;
		1366	}
		1367	}
		1368
		1369	Carp::carp "unable to resolve path '$path' (base '$base').";
		1370	()
		1371	}
		1372
		1373	sub init {
		1374	my ($self) = @_;
		1375
		1376	$self
		1377	}
		1378
		1379	sub as_string {
		1380	my ($self) = @_;
		1381
		1382	"$self->{path}"
		1383	}
		1384
		1385	# the displayed name, this is a one way mapping
		1386	sub visible_name {
		1387	&as_string
		1388	}
		1389
		1390	# the original (read-only) location
		1391	sub load_path {
		1392	my ($self) = @_;
		1393
		1394	"$MAPDIR/$self->{path}.map"
		1395	}
		1396
		1397	# the temporary/swap location
		1398	sub save_path {
		1399	my ($self) = @_;
		1400
		1401	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1402	"$TMPDIR/$path.map"
		1403	}
		1404
		1405	# the unique path, undef == no special unique path
		1406	sub uniq_path {
		1407	my ($self) = @_;
		1408
		1409	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1410	"$UNIQUEDIR/$path"
1075	}	1411	}
1076		1412
1077	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1078	# all maps in C++...	1414	# all maps in C++...
1079	sub change_all_map_light {	1415	sub change_all_map_light {
1080	my ($change) = @_;	1416	my ($change) = @_;
1081		1417
1082	$_->change_map_light ($change) for values %cf::MAP;	1418	$_->change_map_light ($change)
		1419	for grep $_->outdoor, values %cf::MAP;
1083	}	1420	}
1084		1421
		1422	sub unlink_save {
		1423	my ($self) = @_;
		1424
		1425	utf8::encode (my $save = $self->save_path);
		1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1427	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1428	}
		1429
1085	sub try_load_header($) {	1430	sub load_header_from($) {
1086	my ($path) = @_;	1431	my ($self, $path) = @_;
1087		1432
1088	utf8::encode $path;	1433	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1434	#aio_open $path, O_RDONLY, 0
		1435	# or return;
		1436
		1437	$self->_load_header ($path)
1090	or return;	1438	or return;
1091		1439
1092	my $map = cf::map::new	1440	$self->{load_path} = $path;
		1441
		1442	1
		1443	}
		1444
		1445	sub load_header_orig {
		1446	my ($self) = @_;
		1447
		1448	$self->load_header_from ($self->load_path)
		1449	}
		1450
		1451	sub load_header_temp {
		1452	my ($self) = @_;
		1453
		1454	$self->load_header_from ($self->save_path)
		1455	}
		1456
		1457	sub prepare_temp {
		1458	my ($self) = @_;
		1459
		1460	$self->last_access ((delete $self->{last_access})
		1461	|| $cf::RUNTIME); #d#
		1462	# safety
		1463	$self->{instantiate_time} = $cf::RUNTIME
		1464	if $self->{instantiate_time} > $cf::RUNTIME;
		1465	}
		1466
		1467	sub prepare_orig {
		1468	my ($self) = @_;
		1469
		1470	$self->{load_original} = 1;
		1471	$self->{instantiate_time} = $cf::RUNTIME;
		1472	$self->last_access ($cf::RUNTIME);
		1473	$self->instantiate;
		1474	}
		1475
		1476	sub load_header {
		1477	my ($self) = @_;
		1478
		1479	if ($self->load_header_temp) {
		1480	$self->prepare_temp;
		1481	} else {
		1482	$self->load_header_orig
1093	or return;	1483	or return;
		1484	$self->prepare_orig;
		1485	}
1094		1486
1095	$map->load_header ($path)	1487	$self->default_region (cf::region::find_by_path $self->{path})
1096	or return;	1488	unless $self->default_region;
1097		1489
1098	$map->{load_path} = $path;	1490	1
1099
1100	$map
1101	}	1491	}
1102		1492
		1493	sub find;
1103	sub find_map {	1494	sub find {
1104	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1105		1496
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1497	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1498
		1499	cf::lock_wait "map_find:$path";
		1500
1111	$cf::MAP{$key} || do {	1501	$cf::MAP{$path} || do {
1112	# do it the slow way	1502	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1503	my $map = new_from_path cf::map $path
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	1504	or return;
1127		1505
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	1506	$map->{last_save} = $cf::RUNTIME;
1139		1507
1140	if ($map->should_reset) {	1508	$map->load_header
		1509	or return;
		1510
		1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1512	# doing this can freeze the server in a sync job, obviously
		1513	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1514	$map->reset;
1142	$map = find_map $path;	1515	undef $guard;
		1516	return find $path;
1143	}	1517	}
1144		1518
1145	$cf::MAP{$key} = $map	1519	$cf::MAP{$path} = $map
1146	}	1520	}
1147	}	1521	}
		1522
		1523	sub pre_load { }
		1524	sub post_load { }
1148		1525
1149	sub load {	1526	sub load {
1150	my ($self) = @_;	1527	my ($self) = @_;
1151		1528
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1529	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		1530
1156	my $path = $self->{path};	1531	my $path = $self->{path};
1157		1532
		1533	{
		1534	my $guard = cf::lock_acquire "map_load:$path";
		1535
		1536	return if $self->in_memory != cf::MAP_SWAPPED;
		1537
		1538	$self->in_memory (cf::MAP_LOADING);
		1539
1158	$self->alloc;	1540	$self->alloc;
		1541
		1542	$self->pre_load;
		1543	Coro::cede;
		1544
1159	$self->load_objects ($self->{load_path}, 1)	1545	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1546	or return;
1161		1547
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1549	if delete $self->{load_original};
1164		1550
1165	if (my $uniq = $path->uniq_path) {	1551	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1552	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1553	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1554	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1555	$self->_load_objects ($uniq, 0);
1170	}	1556	}
1171	}	1557	}
1172		1558
		1559	Coro::cede;
1173	# now do the right thing for maps	1560	# now do the right thing for maps
1174	$self->link_multipart_objects;	1561	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1563	unless $self->difficulty;
		1564	Coro::cede;
		1565
		1566	unless ($self->{deny_activate}) {
		1567	$self->decay_objects;
		1568	$self->fix_auto_apply;
		1569	$self->update_buttons;
		1570	Coro::cede;
		1571	$self->set_darkness_map;
		1572	Coro::cede;
1186	$self->activate;	1573	$self->activate;
1187	}	1574	}
1188		1575
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1576	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1577	}
1191		1578
1192	sub load_map_sync {	1579	$self->post_load;
		1580	}
		1581
		1582	sub customise_for {
		1583	my ($self, $ob) = @_;
		1584
		1585	return find "~" . $ob->name . "/" . $self->{path}
		1586	if $self->per_player;
		1587
		1588	$self
		1589	}
		1590
		1591	# find and load all maps in the 3x3 area around a map
		1592	sub load_diag {
		1593	my ($map) = @_;
		1594
		1595	my @diag; # diagonal neighbours
		1596
		1597	for (0 .. 3) {
		1598	my $neigh = $map->tile_path ($_)
		1599	or next;
		1600	$neigh = find $neigh, $map
		1601	or next;
		1602	$neigh->load;
		1603
		1604	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1605	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1606	}
		1607
		1608	for (@diag) {
		1609	my $neigh = find @$_
		1610	or next;
		1611	$neigh->load;
		1612	}
		1613	}
		1614
		1615	sub find_sync {
1193	my ($path, $origin) = @_;	1616	my ($path, $origin) = @_;
1194		1617
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1618	cf::sync_job { find $path, $origin }
		1619	}
1196		1620
1197	cf::sync_job {	1621	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1622	my ($map) = @_;
1199	or return;	1623
		1624	cf::sync_job { $map->load };
		1625	}
		1626
		1627	our %MAP_PREFETCH;
		1628	our $MAP_PREFETCHER = undef;
		1629
		1630	sub find_async {
		1631	my ($path, $origin) = @_;
		1632
		1633	$path = normalise $path, $origin && $origin->{path};
		1634
		1635	if (my $map = $cf::MAP{$path}) {
		1636	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1637	}
		1638
		1639	undef $MAP_PREFETCH{$path};
		1640	$MAP_PREFETCHER ||= cf::async {
		1641	while (%MAP_PREFETCH) {
		1642	for my $path (keys %MAP_PREFETCH) {
		1643	my $map = find $path
		1644	or next;
1200	$map->load;	1645	$map->load;
1201	$map	1646
		1647	delete $MAP_PREFETCH{$path};
		1648	}
		1649	}
		1650	undef $MAP_PREFETCHER;
1202	}	1651	};
		1652	$MAP_PREFETCHER->prio (6);
		1653
		1654	()
1203	}	1655	}
1204		1656
1205	sub save {	1657	sub save {
1206	my ($self) = @_;	1658	my ($self) = @_;
1207		1659
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1661
1211	$self->{last_save} = $cf::RUNTIME;	1662	$self->{last_save} = $cf::RUNTIME;
1212		1663
1213	return unless $self->dirty;	1664	return unless $self->dirty;
1214		1665
		1666	my $save = $self->save_path; utf8::encode $save;
		1667	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1668
1215	$self->{load_path} = $save;	1669	$self->{load_path} = $save;
1216		1670
1217	return if $self->{deny_save};	1671	return if $self->{deny_save};
1218		1672
		1673	local $self->{last_access} = $self->last_access;#d#
		1674
		1675	cf::async {
		1676	$_->contr->save for $self->players;
		1677	};
		1678
1219	if ($uniq) {	1679	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1682	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1684	}
1225	}	1685	}
1226		1686
1227	sub swap_out {	1687	sub swap_out {
1228	my ($self) = @_;	1688	my ($self) = @_;
		1689
		1690	# save first because save cedes
		1691	$self->save;
		1692
		1693	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1694
1230	return if $self->players;	1695	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1696	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1697	return if $self->{deny_save};
1233		1698
1234	$self->save;
1235	$self->clear;	1699	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1700	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1701	}
1238		1702
1239	sub reset_at {	1703	sub reset_at {
1240	my ($self) = @_;	1704	my ($self) = @_;
1241		1705
1242	# TODO: safety, remove and allow resettable per-player maps	1706	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};	1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1244	return 1e100 if $self->{deny_reset};	1708	return 1e99 if $self->{deny_reset};
1245		1709
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1712
1250	$time + $to	1713	$time + $to
1251	}	1714	}
1252		1715
1253	sub should_reset {	1716	sub should_reset {
1254	my ($self) = @_;	1717	my ($self) = @_;
1255		1718
1256	$self->reset_at <= $cf::RUNTIME	1719	$self->reset_at <= $cf::RUNTIME
1257	}	1720	}
1258		1721
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub reset {	1722	sub reset {
1268	my ($self) = @_;	1723	my ($self) = @_;
1269		1724
		1725	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1726
1270	return if $self->players;	1727	return if $self->players;
1271	return if $self->{path}{user_rel};#d#	1728	return if $self->isa ("ext::map_per_player");#d#
1272		1729
1273	warn "resetting map ", $self->path;#d#	1730	warn "resetting map ", $self->path;#d#
1274		1731
		1732	$self->in_memory (cf::MAP_SWAPPED);
		1733
		1734	# need to save uniques path
		1735	unless ($self->{deny_save}) {
		1736	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1737
		1738	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1739	if $uniq;
		1740	}
		1741
1275	delete $cf::MAP{$self->path};	1742	delete $cf::MAP{$self->path};
		1743
		1744	$self->clear;
1276		1745
1277	$_->clear_links_to ($self) for values %cf::MAP;	1746	$_->clear_links_to ($self) for values %cf::MAP;
1278		1747
1279	$self->unlink_save;	1748	$self->unlink_save;
1280	$self->destroy;	1749	$self->destroy;
1281	}	1750	}
1282		1751
1283	sub customise_for {	1752	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		1753
1286	if ($map->per_player) {	1754	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1755	my ($self) = @_;
1288	}
1289		1756
1290	$map	1757	delete $cf::MAP{$self->path};
1291	}
1292		1758
1293	sub emergency_save {	1759	$self->unlink_save;
1294	local $cf::FREEZE = 1;
1295		1760
1296	warn "enter emergency map save\n";	1761	bless $self, "cf::map";
		1762	delete $self->{deny_reset};
		1763	$self->{deny_save} = 1;
		1764	$self->reset_timeout (1);
		1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1297		1766
1298	cf::sync_job {	1767	$cf::MAP{$self->path} = $self;
1299	warn "begin emergency map save\n";	1768
1300	$_->save for values %cf::MAP;	1769	$self->reset; # polite request, might not happen
		1770	}
		1771
		1772	=item cf::map::unique_maps
		1773
		1774	Returns an arrayref of paths of all shared maps that have
		1775	instantiated unique items. May block.
		1776
		1777	=cut
		1778
		1779	sub unique_maps() {
		1780	my $files = aio_readdir $UNIQUEDIR
		1781	or return;
		1782
		1783	my @paths;
		1784
		1785	for (@$files) {
		1786	utf8::decode $_;
		1787	next if /\.pst$/;
		1788	next unless /^$PATH_SEP/o;
		1789
		1790	push @paths, cf::map::normalise $_;
1301	};	1791	}
1302		1792
1303	warn "end emergency map save\n";	1793	\@paths
1304	}	1794	}
1305		1795
1306	package cf;	1796	package cf;
1307		1797
1308	=back	1798	=back
1309		1799
		1800	=head3 cf::object
		1801
		1802	=cut
		1803
		1804	package cf::object;
		1805
		1806	=over 4
		1807
		1808	=item $ob->inv_recursive
		1809
		1810	Returns the inventory of the object _and_ their inventories, recursively.
		1811
		1812	=cut
		1813
		1814	sub inv_recursive_;
		1815	sub inv_recursive_ {
		1816	map { $_, inv_recursive_ $_->inv } @_
		1817	}
		1818
		1819	sub inv_recursive {
		1820	inv_recursive_ inv $_[0]
		1821	}
		1822
		1823	package cf;
		1824
		1825	=back
1310		1826
1311	=head3 cf::object::player	1827	=head3 cf::object::player
1312		1828
1313	=over 4	1829	=over 4
1314		1830
…		…
1350	(ref $cf::CFG{"may_$access"}	1866	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1867	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	1868	: $cf::CFG{"may_$access"})
1353	}	1869	}
1354		1870
		1871	=item $player_object->enter_link
		1872
		1873	Freezes the player and moves him/her to a special map (C<{link}>).
		1874
		1875	The player should be reasonably safe there for short amounts of time. You
		1876	I<MUST> call C<leave_link> as soon as possible, though.
		1877
		1878	Will never block.
		1879
		1880	=item $player_object->leave_link ($map, $x, $y)
		1881
		1882	Moves the player out of the special C<{link}> map onto the specified
		1883	map. If the map is not valid (or omitted), the player will be moved back
		1884	to the location he/she was before the call to C<enter_link>, or, if that
		1885	fails, to the emergency map position.
		1886
		1887	Might block.
		1888
		1889	=cut
		1890
		1891	sub link_map {
		1892	unless ($LINK_MAP) {
		1893	$LINK_MAP = cf::map::find "{link}"
		1894	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1895	$LINK_MAP->load;
		1896	}
		1897
		1898	$LINK_MAP
		1899	}
		1900
1355	sub cf::object::player::enter_link {	1901	sub cf::object::player::enter_link {
1356	my ($self) = @_;	1902	my ($self) = @_;
1357		1903
1358	return if $self->map == $LINK_MAP;	1904	$self->deactivate_recursive;
1359		1905
		1906	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1907
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;	1909	if $self->map;
1362		1910
1363	$self->enter_map ($LINK_MAP, 20, 20);	1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1364	$self->deactivate_recursive;
1365	}	1912	}
1366		1913
1367	sub cf::object::player::leave_link {	1914	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	1915	my ($self, $map, $x, $y) = @_;
1369		1916
1370	my $link_pos = delete $self->{_link_pos};	1917	my $link_pos = delete $self->{_link_pos};
1371		1918
1372	unless ($map) {	1919	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	1920	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	1921	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	1922	$map = cf::map::find $map;
1378		1923
1379	unless ($map) {	1924	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	1925	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	1926	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	1927	or die "FATAL: cannot load emergency map\n";
1383	}	1928	}
1384	}	1929	}
1385		1930
1386	($x, $y) = (-1, -1)	1931	($x, $y) = (-1, -1)
…		…
1389	# use -1 or undef as default coordinates, not 0, 0	1934	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	1935	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	1936	if $x <=0 && $y <= 0;
1392		1937
1393	$map->load;	1938	$map->load;
		1939	$map->load_diag;
1394		1940
		1941	return unless $self->contr->active;
1395	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1396	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1397	}	1946	}
1398		1947
1399	=item $player_object->goto_map ($map, $x, $y)	1948	cf::player->attach (
		1949	on_logout => sub {
		1950	my ($pl) = @_;
1400		1951
1401	=cut	1952	# abort map switching before logout
		1953	if ($pl->ob->{_link_pos}) {
		1954	cf::sync_job {
		1955	$pl->ob->leave_link
		1956	};
		1957	}
		1958	},
		1959	on_login => sub {
		1960	my ($pl) = @_;
1402		1961
		1962	# try to abort aborted map switching on player login :)
		1963	# should happen only on crashes
		1964	if ($pl->ob->{_link_pos}) {
		1965	$pl->ob->enter_link;
		1966	(async {
		1967	$pl->ob->reply (undef,
		1968	"There was an internal problem at your last logout, "
		1969	. "the server will try to bring you to your intended destination in a second.",
		1970	cf::NDI_RED);
		1971	# we need this sleep as the login has a concurrent enter_exit running
		1972	# and this sleep increases chances of the player not ending up in scorn
		1973	Coro::Timer::sleep 1;
		1974	$pl->ob->leave_link;
		1975	})->prio (2);
		1976	}
		1977	},
		1978	);
		1979
		1980	=item $player_object->goto ($path, $x, $y[, $check->($map)])
		1981
		1982	Moves the player to the given map-path and coordinates by first freezing
		1983	her, loading and preparing them map, calling the provided $check callback
		1984	that has to return the map if sucecssful, and then unfreezes the player on
		1985	the new (success) or old (failed) map position.
		1986
		1987	=cut
		1988
1403	sub cf::object::player::goto_map {	1989	sub cf::object::player::goto {
1404	my ($self, $path, $x, $y) = @_;	1990	my ($self, $path, $x, $y, $check) = @_;
1405		1991
1406	$self->enter_link;	1992	$self->enter_link;
1407		1993
1408	(Coro::async {	1994	(async {
1409	$path = new cf::path $path;	1995	my $map = eval {
1410
1411	my $map = cf::map::find_map $path->as_string;	1996	my $map = cf::map::find $path;
		1997
		1998	if ($map) {
1412	$map = $map->customise_for ($self) if $map;	1999	$map = $map->customise_for ($self);
		2000	$map = $check->($map) if $check && $map;
		2001	} else {
		2002	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2003	}
1413		2004
1414	warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	2005	$map
		2006	};
		2007
		2008	if ($@) {
		2009	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2010	LOG llevError | logBacktrace, Carp::longmess $@;
		2011	}
1416		2012
1417	$self->leave_link ($map, $x, $y);	2013	$self->leave_link ($map, $x, $y);
1418	})->prio (1);	2014	})->prio (1);
1419	}	2015	}
1420		2016
…		…
1424		2020
1425	sub parse_random_map_params {	2021	sub parse_random_map_params {
1426	my ($spec) = @_;	2022	my ($spec) = @_;
1427		2023
1428	my $rmp = { # defaults	2024	my $rmp = { # defaults
1429	xsize => 10,	2025	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	2026	ysize => (cf::rndm 15, 40),
		2027	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2028	#layout => string,
1431	};	2029	};
1432		2030
1433	for (split /\n/, $spec) {	2031	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	2032	my ($k, $v) = split /\s+/, $_, 2;
1435		2033
…		…
1439	$rmp	2037	$rmp
1440	}	2038	}
1441		2039
1442	sub prepare_random_map {	2040	sub prepare_random_map {
1443	my ($exit) = @_;	2041	my ($exit) = @_;
		2042
		2043	my $guard = cf::lock_acquire "exit_prepare:$exit";
1444		2044
1445	# all this does is basically replace the /! path by	2045	# all this does is basically replace the /! path by
1446	# a new random map path (?random/...) with a seed	2046	# a new random map path (?random/...) with a seed
1447	# that depends on the exit object	2047	# that depends on the exit object
1448		2048
1449	my $rmp = parse_random_map_params $exit->msg;	2049	my $rmp = parse_random_map_params $exit->msg;
1450		2050
1451	if ($exit->map) {	2051	if ($exit->map) {
1452	$rmp->{region} = $exit->map->region_name;	2052	$rmp->{region} = $exit->region->name;
1453	$rmp->{origin_map} = $exit->map->path;	2053	$rmp->{origin_map} = $exit->map->path;
1454	$rmp->{origin_x} = $exit->x;	2054	$rmp->{origin_x} = $exit->x;
1455	$rmp->{origin_y} = $exit->y;	2055	$rmp->{origin_y} = $exit->y;
1456	}	2056	}
1457		2057
1458	$rmp->{random_seed} ||= $exit->random_seed;	2058	$rmp->{random_seed} ||= $exit->random_seed;
1459		2059
1460	my $data = cf::to_json $rmp;	2060	my $data = cf::to_json $rmp;
1461	my $md5 = Digest::MD5::md5_hex $data;	2061	my $md5 = Digest::MD5::md5_hex $data;
		2062	my $meta = "$RANDOMDIR/$md5.meta";
1462		2063
1463	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2064	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1464	aio_write $fh, 0, (length $data), $data, 0;	2065	aio_write $fh, 0, (length $data), $data, 0;
		2066	undef $fh;
		2067	aio_rename "$meta~", $meta;
1465		2068
1466	$exit->slaying ("?random/$md5");	2069	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	2070	$exit->msg (undef);
1468	}	2071	}
1469	}	2072	}
…		…
1471	sub cf::object::player::enter_exit {	2074	sub cf::object::player::enter_exit {
1472	my ($self, $exit) = @_;	2075	my ($self, $exit) = @_;
1473		2076
1474	return unless $self->type == cf::PLAYER;	2077	return unless $self->type == cf::PLAYER;
1475		2078
		2079	if ($exit->slaying eq "/!") {
		2080	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2081	# the problem is that $exit might not survive long enough
		2082	# so it needs to be done right now, right here
		2083	cf::sync_job { prepare_random_map $exit };
		2084	}
		2085
		2086	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2087	my $hp = $exit->stats->hp;
		2088	my $sp = $exit->stats->sp;
		2089
1476	$self->enter_link;	2090	$self->enter_link;
1477		2091
1478	(Coro::async {	2092	(async {
		2093	$self->deactivate_recursive; # just to be sure
1479	unless (eval {	2094	unless (eval {
1480		2095	$self->goto ($slaying, $hp, $sp);
1481	prepare_random_map $exit
1482	if $exit->slaying eq "/!";
1483
1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1486		2096
1487	1;	2097	1;
1488	}) {	2098	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	2099	$self->message ("Something went wrong deep within the crossfire server. "
1490	. "I'll try to bring you back to the map you were before. "	2100	. "I'll try to bring you back to the map you were before. "
1491	. "Please report this to the dungeon master",	2101	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	2102	cf::NDI_UNIQUE | cf::NDI_RED);
1493		2103
1494	warn "ERROR in enter_exit: $@";	2104	warn "ERROR in enter_exit: $@";
1495	$self->leave_link;	2105	$self->leave_link;
1496	}	2106	}
1497	})->prio (1);	2107	})->prio (1);
…		…
1510		2120
1511	sub cf::client::send_drawinfo {	2121	sub cf::client::send_drawinfo {
1512	my ($self, $text, $flags) = @_;	2122	my ($self, $text, $flags) = @_;
1513		2123
1514	utf8::encode $text;	2124	utf8::encode $text;
1515	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2125	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1516	}	2126	}
1517		2127
		2128	=item $client->ext_event ($type, %msg)
		2129
		2130	Sends an exti event to the client.
		2131
		2132	=cut
		2133
		2134	sub cf::client::ext_event($$%) {
		2135	my ($self, $type, %msg) = @_;
		2136
		2137	$msg{msgtype} = "event_$type";
		2138	$self->send_packet ("ext " . cf::to_json \%msg);
		2139	}
1518		2140
1519	=item $success = $client->query ($flags, "text", \&cb)	2141	=item $success = $client->query ($flags, "text", \&cb)
1520		2142
1521	Queues a query to the client, calling the given callback with	2143	Queues a query to the client, calling the given callback with
1522	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2144	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1547	on_reply => sub {	2169	on_reply => sub {
1548	my ($ns, $msg) = @_;	2170	my ($ns, $msg) = @_;
1549		2171
1550	# this weird shuffling is so that direct followup queries	2172	# this weird shuffling is so that direct followup queries
1551	# get handled first	2173	# get handled first
1552	my $queue = delete $ns->{query_queue};	2174	my $queue = delete $ns->{query_queue}
		2175	or return; # be conservative, not sure how that can happen, but we saw a crash here
1553		2176
1554	(shift @$queue)->[1]->($msg);	2177	(shift @$queue)->[1]->($msg);
		2178	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1555		2179
1556	push @{ $ns->{query_queue} }, @$queue;	2180	push @{ $ns->{query_queue} }, @$queue;
1557		2181
1558	if (@{ $ns->{query_queue} } == @$queue) {	2182	if (@{ $ns->{query_queue} } == @$queue) {
1559	if (@$queue) {	2183	if (@$queue) {
…		…
1563	}	2187	}
1564	}	2188	}
1565	},	2189	},
1566	);	2190	);
1567		2191
1568	=item $client->coro (\&cb)	2192	=item $client->async (\&cb)
1569		2193
1570	Create a new coroutine, running the specified callback. The coroutine will	2194	Create a new coroutine, running the specified callback. The coroutine will
1571	be automatically cancelled when the client gets destroyed (e.g. on logout,	2195	be automatically cancelled when the client gets destroyed (e.g. on logout,
1572	or loss of connection).	2196	or loss of connection).
1573		2197
1574	=cut	2198	=cut
1575		2199
1576	sub cf::client::coro {	2200	sub cf::client::async {
1577	my ($self, $cb) = @_;	2201	my ($self, $cb) = @_;
1578		2202
1579	my $coro; $coro = async {	2203	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		2204
1586	$coro->on_destroy (sub {	2205	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	2206	delete $self->{_coro}{$coro+0};
1588	});	2207	});
1589		2208
…		…
1622		2241
1623	# here we export the classes and methods available to script code	2242	# here we export the classes and methods available to script code
1624		2243
1625	=pod	2244	=pod
1626		2245
1627	The following fucntions and emthods are available within a safe environment:	2246	The following functions and methods are available within a safe environment:
1628		2247
1629	cf::object contr pay_amount pay_player map	2248	cf::object contr pay_amount pay_player map
1630	cf::object::player player	2249	cf::object::player player
1631	cf::player peaceful	2250	cf::player peaceful
1632	cf::map trigger	2251	cf::map trigger
…		…
1717	#############################################################################	2336	#############################################################################
1718		2337
1719	=head2 EXTENSION DATABASE SUPPORT	2338	=head2 EXTENSION DATABASE SUPPORT
1720		2339
1721	Crossfire maintains a very simple database for extension use. It can	2340	Crossfire maintains a very simple database for extension use. It can
1722	currently store anything that can be serialised using Storable, which	2341	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1723	excludes objects.	2342	convert to/from binary).
1724		2343
1725	The parameter C<$family> should best start with the name of the extension	2344	The parameter C<$family> should best start with the name of the extension
1726	using it, it should be unique.	2345	using it, it should be unique.
1727		2346
1728	=over 4	2347	=over 4
1729		2348
1730	=item $hashref = cf::db_get $family
1731
1732	Return a hashref for use by the extension C<$family>, which can be
1733	modified. After modifications, you have to call C<cf::db_dirty> or
1734	C<cf::db_sync>.
1735
1736	=item $value = cf::db_get $family => $key	2349	=item $value = cf::db_get $family => $key
1737		2350
1738	Returns a single value from the database	2351	Returns a single value from the database.
1739
1740	=item cf::db_put $family => $hashref
1741
1742	Stores the given family hashref into the database. Updates are delayed, if
1743	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1744		2352
1745	=item cf::db_put $family => $key => $value	2353	=item cf::db_put $family => $key => $value
1746		2354
1747	Stores the given C<$value> in the family hash. Updates are delayed, if you	2355	Stores the given C<$value> in the family.
1748	want the data to be synced to disk immediately, use C<cf::db_sync>.
1749
1750	=item cf::db_dirty
1751
1752	Marks the database as dirty, to be updated at a later time.
1753
1754	=item cf::db_sync
1755
1756	Immediately write the database to disk I<if it is dirty>.
1757		2356
1758	=cut	2357	=cut
1759		2358
1760	our $DB;	2359	our $DB;
1761		2360
1762	{	2361	sub db_init {
1763	my $path = cf::localdir . "/database.pst";	2362	unless ($DB) {
		2363	$DB = BDB::db_create $DB_ENV;
1764		2364
1765	sub db_load() {	2365	cf::sync_job {
1766	warn "loading database $path\n";#d# remove later	2366	eval {
1767	$DB = stat $path ? Storable::retrieve $path : { };	2367	$DB->set_flags (BDB::CHKSUM);
1768	}
1769		2368
1770	my $pid;	2369	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1771		2370	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1772	sub db_save() {	2371	cf::cleanup "db_open(db): $!" if $!;
1773	warn "saving database $path\n";#d# remove later	2372	};
1774	waitpid $pid, 0 if $pid;	2373	cf::cleanup "db_open(db): $@" if $@;
1775	if (0 == ($pid = fork)) {
1776	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;
1779	cf::_exit 0 if defined $pid;
1780	}	2374	};
1781	}
1782
1783	my $dirty;
1784
1785	sub db_sync() {
1786	db_save if $dirty;
1787	undef $dirty;
1788	}
1789
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1791	db_sync;
1792	});	2375	}
		2376	}
1793		2377
1794	sub db_dirty() {
1795	$dirty = 1;
1796	$idle->start;
1797	}
1798
1799	sub db_get($;$) {	2378	sub db_get($$) {
1800	@_ >= 2	2379	my $key = "$_[0]/$_[1]";
1801	? $DB->{$_[0]}{$_[1]}
1802	: ($DB->{$_[0]} ||= { })
1803	}
1804		2380
		2381	cf::sync_job {
		2382	BDB::db_get $DB, undef, $key, my $data;
		2383
		2384	$! ? ()
		2385	: $data
		2386	}
		2387	}
		2388
1805	sub db_put($$;$) {	2389	sub db_put($$$) {
1806	if (@_ >= 3) {	2390	BDB::dbreq_pri 4;
1807	$DB->{$_[0]}{$_[1]} = $_[2];	2391	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1808	} else {	2392	}
1809	$DB->{$_[0]} = $_[1];
1810	}
1811	db_dirty;
1812	}
1813		2393
1814	cf::global->attach (	2394	=item cf::cache $id => [$paths...], $processversion => $process
1815	prio => 10000,	2395
1816	on_cleanup => sub {	2396	Generic caching function that returns the value of the resource $id,
1817	db_sync;	2397	caching and regenerating as required.
		2398
		2399	This function can block.
		2400
		2401	=cut
		2402
		2403	sub cache {
		2404	my ($id, $src, $processversion, $process) = @_;
		2405
		2406	my $meta =
		2407	join "\x00",
		2408	$processversion,
		2409	map {
		2410	aio_stat $_
		2411	and Carp::croak "$_: $!";
		2412
		2413	($_, (stat _)[7,9])
		2414	} @$src;
		2415
		2416	my $dbmeta = db_get cache => "$id/meta";
		2417	if ($dbmeta ne $meta) {
		2418	# changed, we may need to process
		2419
		2420	my @data;
		2421	my $md5;
		2422
		2423	for (0 .. $#$src) {
		2424	0 <= aio_load $src->[$_], $data[$_]
		2425	or Carp::croak "$src->[$_]: $!";
1818	},	2426	}
1819	);	2427
		2428	# if processing is expensive, check
		2429	# checksum first
		2430	if (1) {
		2431	$md5 =
		2432	join "\x00",
		2433	$processversion,
		2434	map {
		2435	Coro::cede;
		2436	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2437	} 0.. $#$src;
		2438
		2439
		2440	my $dbmd5 = db_get cache => "$id/md5";
		2441	if ($dbmd5 eq $md5) {
		2442	db_put cache => "$id/meta", $meta;
		2443
		2444	return db_get cache => "$id/data";
		2445	}
		2446	}
		2447
		2448	my $t1 = Time::HiRes::time;
		2449	my $data = $process->(\@data);
		2450	my $t2 = Time::HiRes::time;
		2451
		2452	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2453
		2454	db_put cache => "$id/data", $data;
		2455	db_put cache => "$id/md5" , $md5;
		2456	db_put cache => "$id/meta", $meta;
		2457
		2458	return $data;
		2459	}
		2460
		2461	db_get cache => "$id/data"
1820	}	2462	}
		2463
		2464	=item fork_call { }, $args
		2465
		2466	Executes the given code block with the given arguments in a seperate
		2467	process, returning the results. Everything must be serialisable with
		2468	Coro::Storable. May, of course, block. Note that the executed sub may
		2469	never block itself or use any form of Event handling.
		2470
		2471	=cut
		2472
		2473	sub fork_call(&@) {
		2474	my ($cb, @args) = @_;
		2475
		2476	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2477	# or die "socketpair: $!";
		2478	pipe my $fh1, my $fh2
		2479	or die "pipe: $!";
		2480
		2481	if (my $pid = fork) {
		2482	close $fh2;
		2483
		2484	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2485	$res = Coro::Storable::thaw $res;
		2486
		2487	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2488
		2489	die $$res unless "ARRAY" eq ref $res;
		2490
		2491	return wantarray ? @$res : $res->[-1];
		2492	} else {
		2493	reset_signals;
		2494	local $SIG{__WARN__};
		2495	local $SIG{__DIE__};
		2496	eval {
		2497	close $fh1;
		2498
		2499	my @res = eval { $cb->(@args) };
		2500	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2501	};
		2502
		2503	warn $@ if $@;
		2504	_exit 0;
		2505	}
		2506	}
		2507
		2508
1821		2509
1822	#############################################################################	2510	#############################################################################
1823	# the server's main()	2511	# the server's init and main functions
		2512
		2513	sub load_facedata($) {
		2514	my ($path) = @_;
		2515
		2516	warn "loading facedata from $path\n";
		2517
		2518	my $facedata;
		2519	0 < aio_load $path, $facedata
		2520	or die "$path: $!";
		2521
		2522	$facedata = Coro::Storable::thaw $facedata;
		2523
		2524	$facedata->{version} == 2
		2525	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2526
		2527	{
		2528	my $faces = $facedata->{faceinfo};
		2529
		2530	while (my ($face, $info) = each %$faces) {
		2531	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2532	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2533	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2534	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2535	Coro::cede;
		2536	}
		2537
		2538	while (my ($face, $info) = each %$faces) {
		2539	next unless $info->{smooth};
		2540	my $idx = cf::face::find $face
		2541	or next;
		2542	if (my $smooth = cf::face::find $info->{smooth}) {
		2543	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2544	} else {
		2545	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2546	}
		2547	Coro::cede;
		2548	}
		2549	}
		2550
		2551	{
		2552	my $anims = $facedata->{animinfo};
		2553
		2554	while (my ($anim, $info) = each %$anims) {
		2555	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2556	Coro::cede;
		2557	}
		2558
		2559	cf::anim::invalidate_all; # d'oh
		2560	}
		2561
		2562	1
		2563	}
		2564
		2565	sub reload_regions {
		2566	load_resource_file "$MAPDIR/regions"
		2567	or die "unable to load regions file\n";
		2568	}
		2569
		2570	sub reload_facedata {
		2571	load_facedata "$DATADIR/facedata"
		2572	or die "unable to load facedata\n";
		2573	}
		2574
		2575	sub reload_archetypes {
		2576	load_resource_file "$DATADIR/archetypes"
		2577	or die "unable to load archetypes\n";
		2578	}
		2579
		2580	sub reload_treasures {
		2581	load_resource_file "$DATADIR/treasures"
		2582	or die "unable to load treasurelists\n";
		2583	}
		2584
		2585	sub reload_resources {
		2586	warn "reloading resource files...\n";
		2587
		2588	reload_regions;
		2589	reload_facedata;
		2590	reload_archetypes;
		2591	reload_treasures;
		2592
		2593	warn "finished reloading resource files\n";
		2594	}
		2595
		2596	sub init {
		2597	reload_resources;
		2598	}
1824		2599
1825	sub cfg_load {	2600	sub cfg_load {
1826	open my $fh, "<:utf8", cf::confdir . "/config"	2601	open my $fh, "<:utf8", "$CONFDIR/config"
1827	or return;	2602	or return;
1828		2603
1829	local $/;	2604	local $/;
1830	*CFG = YAML::Syck::Load <$fh>;	2605	*CFG = YAML::Syck::Load <$fh>;
		2606
		2607	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2608
		2609	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2610	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2611
		2612	if (exists $CFG{mlockall}) {
		2613	eval {
		2614	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2615	and die "WARNING: m(un)lockall failed: $!\n";
		2616	};
		2617	warn $@ if $@;
		2618	}
1831	}	2619	}
1832		2620
1833	sub main {	2621	sub main {
1834	# we must not ever block the main coroutine	2622	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	2623	local $Coro::idle = sub {
1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2624	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1837	(Coro::unblock_sub {	2625	(async {
1838	Event::one_event;	2626	Event::one_event;
1839	})->();	2627	})->prio (Coro::PRIO_MAX);
1840	};	2628	};
1841		2629
1842	cfg_load;	2630	cfg_load;
1843	db_load;	2631	db_init;
1844	load_extensions;	2632	load_extensions;
		2633
		2634	$TICK_WATCHER->start;
1845	Event::loop;	2635	Event::loop;
1846	}	2636	}
1847		2637
1848	#############################################################################	2638	#############################################################################
1849	# initialisation	2639	# initialisation and cleanup
1850		2640
		2641	# install some emergency cleanup handlers
		2642	BEGIN {
		2643	for my $signal (qw(INT HUP TERM)) {
		2644	Event->signal (
		2645	reentrant => 0,
		2646	data => WF_AUTOCANCEL,
		2647	signal => $signal,
		2648	prio => 0,
		2649	cb => sub {
		2650	cf::cleanup "SIG$signal";
		2651	},
		2652	);
		2653	}
		2654	}
		2655
		2656	sub emergency_save() {
		2657	my $freeze_guard = cf::freeze_mainloop;
		2658
		2659	warn "enter emergency perl save\n";
		2660
		2661	cf::sync_job {
		2662	# use a peculiar iteration method to avoid tripping on perl
		2663	# refcount bugs in for. also avoids problems with players
		2664	# and maps saved/destroyed asynchronously.
		2665	warn "begin emergency player save\n";
		2666	for my $login (keys %cf::PLAYER) {
		2667	my $pl = $cf::PLAYER{$login} or next;
		2668	$pl->valid or next;
		2669	$pl->save;
		2670	}
		2671	warn "end emergency player save\n";
		2672
		2673	warn "begin emergency map save\n";
		2674	for my $path (keys %cf::MAP) {
		2675	my $map = $cf::MAP{$path} or next;
		2676	$map->valid or next;
		2677	$map->save;
		2678	}
		2679	warn "end emergency map save\n";
		2680
		2681	warn "begin emergency database checkpoint\n";
		2682	BDB::db_env_txn_checkpoint $DB_ENV;
		2683	warn "end emergency database checkpoint\n";
		2684	};
		2685
		2686	warn "leave emergency perl save\n";
		2687	}
		2688
		2689	sub post_cleanup {
		2690	my ($make_core) = @_;
		2691
		2692	warn Carp::longmess "post_cleanup backtrace"
		2693	if $make_core;
		2694	}
		2695
1851	sub reload() {	2696	sub do_reload_perl() {
1852	# can/must only be called in main	2697	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	2698	if ($Coro::current != $Coro::main) {
1854	warn "can only reload from main coroutine\n";	2699	warn "can only reload from main coroutine";
1855	return;	2700	return;
1856	}	2701	}
1857		2702
1858	warn "reloading...";	2703	warn "reloading...";
1859		2704
1860	local $FREEZE = 1;	2705	warn "entering sync_job";
		2706
		2707	cf::sync_job {
		2708	cf::write_runtime; # external watchdog should not bark
1861	cf::emergency_save;	2709	cf::emergency_save;
		2710	cf::write_runtime; # external watchdog should not bark
1862		2711
1863	eval {	2712	warn "syncing database to disk";
		2713	BDB::db_env_txn_checkpoint $DB_ENV;
		2714
1864	# if anything goes wrong in here, we should simply crash as we already saved	2715	# if anything goes wrong in here, we should simply crash as we already saved
1865		2716
1866	# cancel all watchers	2717	warn "cancelling all WF_AUTOCANCEL watchers";
1867	for (Event::all_watchers) {	2718	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;	2719	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}	2720	}
1870		2721
		2722	warn "flushing outstanding aio requests";
		2723	for (;;) {
		2724	BDB::flush;
		2725	IO::AIO::flush;
		2726	Coro::cede;
		2727	last unless IO::AIO::nreqs || BDB::nreqs;
		2728	warn "iterate...";
		2729	}
		2730
		2731	++$RELOAD;
		2732
1871	# cancel all extension coros	2733	warn "cancelling all extension coros";
1872	$_->cancel for values %EXT_CORO;	2734	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	2735	%EXT_CORO = ();
1874		2736
1875	# unload all extensions	2737	warn "removing commands";
1876	for (@exts) {	2738	%COMMAND = ();
		2739
		2740	warn "removing ext commands";
		2741	%EXTCMD = ();
		2742
		2743	warn "unloading/nuking all extensions";
		2744	for my $pkg (@EXTS) {
1877	warn "unloading <$_>";	2745	warn "... unloading $pkg";
1878	unload_extension $_;	2746
		2747	if (my $cb = $pkg->can ("unload")) {
		2748	eval {
		2749	$cb->($pkg);
		2750	1
		2751	} or warn "$pkg unloaded, but with errors: $@";
1879	}	2752	}
1880		2753
		2754	warn "... nuking $pkg";
		2755	Symbol::delete_package $pkg;
		2756	}
		2757
1881	# unload all modules loaded from $LIBDIR	2758	warn "unloading all perl modules loaded from $LIBDIR";
1882	while (my ($k, $v) = each %INC) {	2759	while (my ($k, $v) = each %INC) {
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2760	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1884		2761
1885	warn "removing <$k>";	2762	warn "... unloading $k";
1886	delete $INC{$k};	2763	delete $INC{$k};
1887		2764
1888	$k =~ s/\.pm$//;	2765	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;	2766	$k =~ s/\//::/g;
1890		2767
…		…
1893	}	2770	}
1894		2771
1895	Symbol::delete_package $k;	2772	Symbol::delete_package $k;
1896	}	2773	}
1897		2774
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	2775	warn "getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	2776	Symbol::delete_package "safe::$_"
1904	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2777	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1905		2778
1906	# remove register_script_function callbacks
1907	# TODO
1908
1909	# unload cf.pm "a bit"	2779	warn "unloading cf.pm \"a bit\"";
1910	delete $INC{"cf.pm"};	2780	delete $INC{"cf.pm"};
		2781	delete $INC{"cf/pod.pm"};
1911		2782
1912	# don't, removes xs symbols, too,	2783	# don't, removes xs symbols, too,
1913	# and global variables created in xs	2784	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	2785	#Symbol::delete_package __PACKAGE__;
1915		2786
1916	# reload cf.pm	2787	warn "unload completed, starting to reload now";
		2788
1917	warn "reloading cf.pm";	2789	warn "reloading cf.pm";
1918	require cf;	2790	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2791	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1920		2792
1921	# load config and database again	2793	warn "loading config and database again";
1922	cf::cfg_load;	2794	cf::cfg_load;
1923	cf::db_load;
1924		2795
1925	# load extensions
1926	warn "load extensions";	2796	warn "loading extensions";
1927	cf::load_extensions;	2797	cf::load_extensions;
1928		2798
1929	# reattach attachments to objects	2799	warn "reattaching attachments to objects/players";
1930	warn "reattach";	2800	_global_reattach; # objects, sockets
1931	_global_reattach;	2801	warn "reattaching attachments to maps";
1932	};	2802	reattach $_ for values %MAP;
		2803	warn "reattaching attachments to players";
		2804	reattach $_ for values %PLAYER;
1933		2805
1934	if ($@) {	2806	warn "leaving sync_job";
		2807
		2808	1
		2809	} or do {
1935	warn $@;	2810	warn $@;
1936	warn "error while reloading, exiting.";	2811	warn "error while reloading, exiting.";
1937	exit 1;	2812	exit 1;
1938	}	2813	};
1939		2814
1940	warn "reloaded successfully";	2815	warn "reloaded";
1941	};	2816	};
1942		2817
1943	#############################################################################	2818	our $RELOAD_WATCHER; # used only during reload
1944		2819
1945	unless ($LINK_MAP) {	2820	sub reload_perl() {
1946	$LINK_MAP = cf::map::new;	2821	# doing reload synchronously and two reloads happen back-to-back,
		2822	# coro crashes during coro_state_free->destroy here.
1947		2823
1948	$LINK_MAP->width (41);	2824	$RELOAD_WATCHER ||= Event->timer (
1949	$LINK_MAP->height (41);	2825	reentrant => 0,
1950	$LINK_MAP->alloc;
1951	$LINK_MAP->path ("{link}");
1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955	# dirty hack because... archetypes are not yet loaded
1956	Event->timer (
1957	after => 2,	2826	after => 0,
		2827	data => WF_AUTOCANCEL,
1958	cb => sub {	2828	cb => sub {
1959	$_[0]->w->cancel;	2829	do_reload_perl;
1960		2830	undef $RELOAD_WATCHER;
1961	# provide some exits "home"
1962	my $exit = cf::object::new "exit";
1963
1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968	$LINK_MAP->insert ($exit->clone, 19, 19);
1969	$LINK_MAP->insert ($exit->clone, 19, 20);
1970	$LINK_MAP->insert ($exit->clone, 19, 21);
1971	$LINK_MAP->insert ($exit->clone, 20, 19);
1972	$LINK_MAP->insert ($exit->clone, 20, 21);
1973	$LINK_MAP->insert ($exit->clone, 21, 19);
1974	$LINK_MAP->insert ($exit->clone, 21, 20);
1975	$LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977	$exit->destroy;
1978	});	2831	},
1979		2832	);
1980	$LINK_MAP->{deny_save} = 1;
1981	$LINK_MAP->{deny_reset} = 1;
1982
1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984	}	2833	}
1985
1986	register "<global>", __PACKAGE__;
1987		2834
1988	register_command "reload" => sub {	2835	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	2836	my ($who, $arg) = @_;
1990		2837
1991	if ($who->flag (FLAG_WIZ)) {	2838	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");
1993	reload;
1994	$who->message ("end of reload.");	2839	$who->message ("reloading server.");
		2840	async { reload_perl };
1995	}	2841	}
1996	};	2842	};
1997		2843
1998	unshift @INC, $LIBDIR;	2844	unshift @INC, $LIBDIR;
1999		2845
		2846	my $bug_warning = 0;
		2847
		2848	our @WAIT_FOR_TICK;
		2849	our @WAIT_FOR_TICK_BEGIN;
		2850
		2851	sub wait_for_tick {
		2852	return unless $TICK_WATCHER->is_active;
		2853	return if $Coro::current == $Coro::main;
		2854
		2855	my $signal = new Coro::Signal;
		2856	push @WAIT_FOR_TICK, $signal;
		2857	$signal->wait;
		2858	}
		2859
		2860	sub wait_for_tick_begin {
		2861	return unless $TICK_WATCHER->is_active;
		2862	return if $Coro::current == $Coro::main;
		2863
		2864	my $signal = new Coro::Signal;
		2865	push @WAIT_FOR_TICK_BEGIN, $signal;
		2866	$signal->wait;
		2867	}
		2868
		2869	my $min = 1e6;#d#
		2870	my $avg = 10;
2000	$TICK_WATCHER = Event->timer (	2871	$TICK_WATCHER = Event->timer (
2001	reentrant => 0,	2872	reentrant => 0,
		2873	parked => 1,
2002	prio => 0,	2874	prio => 0,
2003	at => $NEXT_TICK || $TICK,	2875	at => $NEXT_TICK || $TICK,
2004	data => WF_AUTOCANCEL,	2876	data => WF_AUTOCANCEL,
2005	cb => sub {	2877	cb => sub {
2006	unless ($FREEZE) {	2878	if ($Coro::current != $Coro::main) {
		2879	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2880	unless ++$bug_warning > 10;
		2881	return;
		2882	}
		2883
		2884	$NOW = $tick_start = Event::time;
		2885
2007	cf::server_tick; # one server iteration	2886	cf::server_tick; # one server iteration
2008	$RUNTIME += $TICK;	2887
		2888	0 && sync_job {#d#
		2889	for(1..10) {
		2890	my $t = Event::time;
		2891	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2892	or die;
		2893
		2894	$map->width (50);
		2895	$map->height (50);
		2896	$map->alloc;
		2897	$map->_load_objects ("/tmp/x.map", 1);
		2898	my $t = Event::time - $t;
		2899
		2900	#next unless $t < 0.0013;#d#
		2901	if ($t < $min) {
		2902	$min = $t;
		2903	}
		2904	$avg = $avg * 0.99 + $t * 0.01;
		2905	}
		2906	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2907	exit 0;
		2908	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2009	}	2909	};
2010		2910
		2911	$RUNTIME += $TICK;
2011	$NEXT_TICK += $TICK;	2912	$NEXT_TICK += $TICK;
2012		2913
		2914	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2915	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2916	Coro::async_pool {
		2917	write_runtime
		2918	or warn "ERROR: unable to write runtime file: $!";
		2919	};
		2920	}
		2921
		2922	# my $AFTER = Event::time;
		2923	# warn $AFTER - $NOW;#d#
		2924
		2925	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2926	$sig->send;
		2927	}
		2928	while (my $sig = shift @WAIT_FOR_TICK) {
		2929	$sig->send;
		2930	}
		2931
		2932	$NOW = Event::time;
		2933
2013	# if we are delayed by four ticks or more, skip them all	2934	# if we are delayed by four ticks or more, skip them all
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2935	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2015		2936
2016	$TICK_WATCHER->at ($NEXT_TICK);	2937	$TICK_WATCHER->at ($NEXT_TICK);
2017	$TICK_WATCHER->start;	2938	$TICK_WATCHER->start;
		2939
		2940	$LOAD = ($NOW - $tick_start) / $TICK;
		2941	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2942
		2943	_post_tick;
		2944
		2945
2018	},	2946	},
2019	);	2947	);
2020		2948
		2949	{
2021	IO::AIO::max_poll_time $TICK * 0.2;	2950	BDB::max_poll_time $TICK * 0.1;
2022		2951	$BDB_POLL_WATCHER = Event->io (
2023	Event->io (	2952	reentrant => 0,
2024	fd => IO::AIO::poll_fileno,	2953	fd => BDB::poll_fileno,
2025	poll => 'r',	2954	poll => 'r',
2026	prio => 5,	2955	prio => 0,
2027	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,
2029	);
2030
2031	Event->timer (
2032	data => WF_AUTOCANCEL,	2956	data => WF_AUTOCANCEL,
2033	after => 0,	2957	cb => \&BDB::poll_cb,
2034	interval => 10,	2958	);
2035	cb => sub {	2959	BDB::min_parallel 8;
2036	(Coro::unblock_sub {	2960
2037	write_runtime	2961	BDB::set_sync_prepare {
2038	or warn "ERROR: unable to write runtime file: $!";	2962	my $status;
		2963	my $current = $Coro::current;
		2964	(
		2965	sub {
		2966	$status = $!;
		2967	$current->ready; undef $current;
		2968	},
		2969	sub {
		2970	Coro::schedule while defined $current;
		2971	$! = $status;
		2972	},
		2973	)
		2974	};
		2975
		2976	unless ($DB_ENV) {
		2977	$DB_ENV = BDB::db_env_create;
		2978
		2979	cf::sync_job {
		2980	eval {
		2981	BDB::db_env_open
		2982	$DB_ENV,
		2983	$BDBDIR,
		2984	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2985	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2986	0666;
		2987
		2988	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2989
		2990	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2991	$DB_ENV->set_lk_detect;
		2992	};
		2993
		2994	cf::cleanup "db_env_open(db): $@" if $@;
2039	})->();	2995	};
2040	},	2996	}
2041	);	2997	}
		2998
		2999	{
		3000	IO::AIO::min_parallel 8;
		3001
		3002	undef $Coro::AIO::WATCHER;
		3003	IO::AIO::max_poll_time $TICK * 0.1;
		3004	$AIO_POLL_WATCHER = Event->io (
		3005	reentrant => 0,
		3006	data => WF_AUTOCANCEL,
		3007	fd => IO::AIO::poll_fileno,
		3008	poll => 'r',
		3009	prio => 6,
		3010	cb => \&IO::AIO::poll_cb,
		3011	);
		3012	}
		3013
		3014	my $_log_backtrace;
		3015
		3016	sub _log_backtrace {
		3017	my ($msg, @addr) = @_;
		3018
		3019	$msg =~ s/\n//;
		3020
		3021	# limit the # of concurrent backtraces
		3022	if ($_log_backtrace < 2) {
		3023	++$_log_backtrace;
		3024	async {
		3025	my @bt = fork_call {
		3026	@addr = map { sprintf "%x", $_ } @addr;
		3027	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3028	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3029	or die "addr2line: $!";
		3030
		3031	my @funcs;
		3032	my @res = <$fh>;
		3033	chomp for @res;
		3034	while (@res) {
		3035	my ($func, $line) = splice @res, 0, 2, ();
		3036	push @funcs, "[$func] $line";
		3037	}
		3038
		3039	@funcs
		3040	};
		3041
		3042	LOG llevInfo, "[ABT] $msg\n";
		3043	LOG llevInfo, "[ABT] $_\n" for @bt;
		3044	--$_log_backtrace;
		3045	};
		3046	} else {
		3047	LOG llevInfo, "[ABT] $msg\n";
		3048	LOG llevInfo, "[ABT] [suppressed]\n";
		3049	}
		3050	}
		3051
		3052	# load additional modules
		3053	use cf::pod;
		3054
		3055	END { cf::emergency_save }
2042		3056
2043	1	3057	1
2044		3058

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