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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.121 by root, Tue Jan 2 11:11:52 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 $ref
176		245
177	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
178		247
179	=cut
180
181	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185
186	=item my $guard = cf::guard { BLOCK }
187
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207
208	=item cf::lock_wait $string	248	=item cf::lock_wait $string
209		249
210	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
211		251
212	=item my $lock = cf::lock_acquire $string	252	=item my $lock = cf::lock_acquire $string
213		253
214	Wait until the given lock is available and then acquires it and returns	254	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	255	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	256	for example when the coroutine gets canceled), the lock is automatically
217	returned.	257	returned.
218		258
219	Lock names should begin with a unique identifier (for example, find_map	259	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	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.
221		265
222	=cut	266	=cut
223		267
224	our %LOCK;	268	our %LOCK;
225		269
…		…
239	# wait, to be sure we are not locked	283	# wait, to be sure we are not locked
240	lock_wait $key;	284	lock_wait $key;
241		285
242	$LOCK{$key} = [];	286	$LOCK{$key} = [];
243		287
244	cf::guard {	288	Coro::guard {
245	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
247	}	291	}
248	}	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	$guard
		308	}
		309
		310	=item cf::async { BLOCK }
		311
		312	Currently the same as Coro::async_pool, meaning you cannot use
		313	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		314	thing you are allowed to do is call C<prio> on it.
		315
		316	=cut
		317
		318	BEGIN { *async = \&Coro::async_pool }
249		319
250	=item cf::sync_job { BLOCK }	320	=item cf::sync_job { BLOCK }
251		321
252	The design of crossfire+ requires that the main coro ($Coro::main) is	322	The design of crossfire+ requires that the main coro ($Coro::main) is
253	always able to handle events or runnable, as crossfire+ is only partly	323	always able to handle events or runnable, as crossfire+ is only partly
…		…
262		332
263	sub sync_job(&) {	333	sub sync_job(&) {
264	my ($job) = @_;	334	my ($job) = @_;
265		335
266	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
267	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
269		341
270	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	343	# (but this is cancel-safe)
272	local $FREEZE = 1;	344	my $freeze_guard = freeze_mainloop;
273		345
274	my $busy = 1;	346	my $busy = 1;
275	my @res;	347	my @res;
276		348
277	(Coro::async {	349	(async {
278	@res = eval { $job->() };	350	@res = eval { $job->() };
279	warn $@ if $@;	351	warn $@ if $@;
280	undef $busy;	352	undef $busy;
281	})->prio (Coro::PRIO_MAX);	353	})->prio (Coro::PRIO_MAX);
282		354
283	while ($busy) {	355	while ($busy) {
284	Coro::cede_notself;	356	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	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
287		365
288	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
289	} else {	367	} else {
290	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
291		369
292	$job->()	370	$job->()
293	}	371	}
294	}	372	}
295		373
296	=item $coro = cf::coro { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
297		375
298	Creates and returns a new coro. This coro is automcatially being canceled	376	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	377	extension calling this is being unloaded.
300		378
301	=cut	379	=cut
302		380
303	sub coro(&) {	381	sub async_ext(&) {
304	my $cb = shift;	382	my $cb = shift;
305		383
306	my $coro; $coro = async {	384	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		385
313	$coro->on_destroy (sub {	386	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	387	delete $EXT_CORO{$coro+0};
315	});	388	});
316	$EXT_CORO{$coro+0} = $coro;	389	$EXT_CORO{$coro+0} = $coro;
317		390
318	$coro	391	$coro
319	}	392	}
320		393
321	sub write_runtime {	394	sub write_runtime {
322	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";
323		405
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
325	or return;	407	or return;
326		408
		409	my $value = $cf::RUNTIME + 90 + 10;
327	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
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;	414	and return;
330		415
		416	# always fsync - this file is important
331	aio_fsync $fh	417	aio_fsync $fh
332	and return;	418	and return;
333		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
334	close $fh	423	close $fh
335	or return;	424	or return;
336		425
337	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
338	and return;	427	and return;
339		428
		429	warn "runtime file written.\n";#d#
		430
340	1	431	1
341	}	432	}
342		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
343	=back	445	=back
344		446
345	=cut	447	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		448
467	#############################################################################	449	#############################################################################
468		450
469	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
470		452
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	579	our @CB_MAP = ();
598		580
599	my %attachment;	581	my %attachment;
600		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
601	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
603		591
604	use sort 'stable';	592	use sort 'stable';
605		593
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	627	$registry = $CB_TYPE[$object_type] ||= [];
640		628
641	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		633
646	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	635	my $pkg = shift @arg;
648		636
649	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
690	if (ref $_[0]) {	678	if (ref $_[0]) {
691	_object_attach @_;	679	_object_attach @_;
692	} else {	680	} else {
693	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
694	}	682	}
		683	_recalc_want;
695	};	684	};
696		685
697	# all those should be optimised	686	# all those should be optimised
698	sub cf::attachable::detach {	687	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
703	reattach ($obj);	692	reattach ($obj);
704	} else {	693	} else {
705	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
706	}	695	}
		696	_recalc_want;
707	};	697	};
708		698
709	sub cf::attachable::attached {	699	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
711		701
…		…
776	# object support	766	# object support
777		767
778	sub reattach {	768	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	769	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	770	my ($obj) = @_;
		771
		772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		773
782	my $registry = $obj->registry;	774	my $registry = $obj->registry;
783		775
784	@$registry = ();	776	@$registry = ();
785		777
…		…
832	$filename, length $$rdata, scalar @$objs;	824	$filename, length $$rdata, scalar @$objs;
833		825
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	827	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	829	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	830	close $fh;
839		831
840	if (@$objs) {	832	if (@$objs) {
841	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) {
842	chmod SAVE_MODE, $fh;	834	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	835	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	836	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	837	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	838	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	839	aio_rename "$filename.pst~", "$filename.pst";
848	}	840	}
849	} else {	841	} else {
850	aio_unlink "$filename.pst";	842	aio_unlink "$filename.pst";
…		…
917	=cut	909	=cut
918		910
919	sub register_extcmd {	911	sub register_extcmd {
920	my ($name, $cb) = @_;	912	my ($name, $cb) = @_;
921		913
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	914	$EXTCMD{$name} = $cb;
926	}	915	}
927		916
928	cf::player->attach (	917	cf::player->attach (
929	on_command => sub {	918	on_command => sub {
930	my ($pl, $name, $params) = @_;	919	my ($pl, $name, $params) = @_;
…		…
943		932
944	my $msg = eval { from_json $buf };	933	my $msg = eval { from_json $buf };
945		934
946	if (ref $msg) {	935	if (ref $msg) {
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	937	if (my %reply = $cb->($pl, $msg)) {
949	$pl->ext_reply ($msg->{msgid}, %reply);	938	$pl->ext_reply ($msg->{msgid}, %reply);
950	}	939	}
951	}	940	}
952	} else {	941	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
955		944
956	cf::override;	945	cf::override;
957	},	946	},
958	);	947	);
959		948
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	949	sub load_extension {
967	my ($path) = @_;	950	my ($path) = @_;
968		951
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
970	my $base = $1;	953	my $base = $1;
971	my $pkg = $1;	954	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;	955	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";	956	$pkg = "ext::$pkg";
974		957
975	warn "loading '$path' into '$pkg'\n";	958	warn "... loading '$path' into '$pkg'\n";
976		959
977	open my $fh, "<:utf8", $path	960	open my $fh, "<:utf8", $path
978	or die "$path: $!";	961	or die "$path: $!";
979		962
980	my $source =	963	my $source =
981	"package $pkg; use strict; use utf8;\n"	964	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"	965	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })	966	. (do { local $/; <$fh> })
984	. "\n};\n1";	967	. "\n};\n1";
985		968
986	eval $source	969	unless (eval $source) {
987	or die $@ ? "$path: $@\n"	970	my $msg = $@ ? "$path: $@\n"
988	: "extension disabled.\n";	971	: "extension disabled.\n";
989		972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
990	push @exts, $pkg;	973	warn $@;
991	$ext_pkg{$base} = $pkg;	974	warn "mandatory extension failed to load, exiting.\n";
992		975	exit 1;
993	# no strict 'refs';	976	}
994	# @{"$pkg\::ISA"} = ext::;	977	die $@;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	978	}
1009		979
1010	# remove commands	980	push @EXTS, $pkg;
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}	981	}
1035		982
1036	sub load_extensions {	983	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {	984	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;	985	next unless -r $ext;
…		…
1042	} or warn "$ext not loaded: $@";	989	} or warn "$ext not loaded: $@";
1043	}	990	}
1044	}	991	}
1045		992
1046	#############################################################################	993	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083		994
1084	=head2 CORE EXTENSIONS	995	=head2 CORE EXTENSIONS
1085		996
1086	Functions and methods that extend core crossfire objects.	997	Functions and methods that extend core crossfire objects.
1087		998
		999	=cut
		1000
		1001	package cf::player;
		1002
		1003	use Coro::AIO;
		1004
1088	=head3 cf::player	1005	=head3 cf::player
1089		1006
1090	=over 4	1007	=over 4
1091		1008
1092	=item cf::player::exists $login	1009	=item cf::player::find $login
1093		1010
1094	Returns true when the given account exists.	1011	Returns the given player object, loading it if necessary (might block).
1095		1012
1096	=cut	1013	=cut
1097		1014
1098	sub cf::player::exists($) {	1015	sub playerdir($) {
1099	cf::player::find $_[0]	1016	"$PLAYERDIR/"
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1101	}	1018	}
1102		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
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)	1191	=item $player->ext_reply ($msgid, %msg)
1104		1192
1105	Sends an ext reply to the player.	1193	Sends an ext reply to the player.
1106		1194
1107	=cut	1195	=cut
1108		1196
1109	sub cf::player::ext_reply($$$%) {	1197	sub ext_reply($$%) {
1110	my ($self, $id, %msg) = @_;	1198	my ($self, $id, %msg) = @_;
1111		1199
1112	$msg{msgid} = $id;	1200	$msg{msgid} = $id;
1113		1201
1114	$self->send ("ext " . to_json \%msg);	1202	$self->send ("ext " . cf::to_json \%msg);
		1203	}
		1204
		1205	=item $player->ext_event ($type, %msg)
		1206
		1207	Sends an ext event to the client.
		1208
		1209	=cut
		1210
		1211	sub ext_event($$%) {
		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
1115	}	1244	}
1116		1245
1117	=back	1246	=back
1118
1119		1247
1120	=head3 cf::map	1248	=head3 cf::map
1121		1249
1122	=over 4	1250	=over 4
1123		1251
…		…
1126	package cf::map;	1254	package cf::map;
1127		1255
1128	use Fcntl;	1256	use Fcntl;
1129	use Coro::AIO;	1257	use Coro::AIO;
1130		1258
		1259	use overload
		1260	'""' => \&as_string,
		1261	fallback => 1;
		1262
1131	our $MAX_RESET = 7200;	1263	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1264	our $DEFAULT_RESET = 3000;
1133		1265
1134	sub generate_random_map {	1266	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1267	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1268	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1269	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1273	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1274	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1277	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$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},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1279	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(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"
1151	}	1411	}
1152		1412
1153	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1154	# all maps in C++...	1414	# all maps in C++...
1155	sub change_all_map_light {	1415	sub change_all_map_light {
1156	my ($change) = @_;	1416	my ($change) = @_;
1157		1417
1158	$_->change_map_light ($change) for values %cf::MAP;	1418	$_->change_map_light ($change)
		1419	for grep $_->outdoor, values %cf::MAP;
1159	}	1420	}
1160		1421
		1422	sub unlink_save {
		1423	my ($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
1161	sub try_load_header($) {	1430	sub load_header_from($) {
1162	my ($path) = @_;	1431	my ($self, $path) = @_;
1163		1432
1164	utf8::encode $path;	1433	utf8::encode $path;
1165	aio_open $path, O_RDONLY, 0	1434	#aio_open $path, O_RDONLY, 0
		1435	# or return;
		1436
		1437	$self->_load_header ($path)
1166	or return;	1438	or return;
1167		1439
1168	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
1169	or return;	1483	or return;
		1484	$self->prepare_orig;
		1485	}
1170		1486
1171	$map->load_header ($path)	1487	$self->default_region (cf::region::find_by_path $self->{path})
1172	or return;	1488	unless $self->default_region;
1173		1489
1174	$map->{load_path} = $path;	1490	1
1175
1176	$map
1177	}	1491	}
1178		1492
		1493	sub find;
1179	sub find_map {	1494	sub find {
1180	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1181		1496
1182	#warn "find_map<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1497	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1498
1187	cf::lock_wait "map_find:$key";	1499	cf::lock_wait "map_find:$path";
1188		1500
1189	$cf::MAP{$key} || do {	1501	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1502	my $guard = cf::lock_acquire "map_find:$path";
1191		1503	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	if ($map) {
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1504	or return;
1207		1505
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->instantiate;
1211
1212	# per-player maps become, after loading, normal maps
1213	$map->per_player (0) if $path->{user_rel};
1214	}
1215
1216	$map->path ($key);
1217	$map->{path} = $path;
1218	$map->{last_save} = $cf::RUNTIME;	1506	$map->{last_save} = $cf::RUNTIME;
1219	$map->last_access ($cf::RUNTIME);
1220		1507
1221	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;
1222	$map->reset;	1514	$map->reset;
1223	$map = find_map $path;	1515	undef $guard;
		1516	return find $path;
1224	}	1517	}
1225		1518
1226	$cf::MAP{$key} = $map	1519	$cf::MAP{$path} = $map
1227	}	1520	}
1228	}	1521	}
		1522
		1523	sub pre_load { }
		1524	sub post_load { }
1229		1525
1230	sub load {	1526	sub load {
1231	my ($self) = @_;	1527	my ($self) = @_;
1232		1528
		1529	local $self->{deny_reset} = 1; # loading can take a long time
		1530
1233	my $path = $self->{path};	1531	my $path = $self->{path};
		1532
		1533	{
1234	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1534	my $guard = cf::lock_acquire "map_load:$path";
1235		1535
1236	return if $self->in_memory != cf::MAP_SWAPPED;	1536	return if $self->in_memory != cf::MAP_SWAPPED;
1237		1537
1238	$self->in_memory (cf::MAP_LOADING);	1538	$self->in_memory (cf::MAP_LOADING);
1239		1539
1240	$self->alloc;	1540	$self->alloc;
		1541
		1542	$self->pre_load;
		1543	Coro::cede;
		1544
1241	$self->load_objects ($self->{load_path}, 1)	1545	$self->_load_objects ($self->{load_path}, 1)
1242	or return;	1546	or return;
1243		1547
1244	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1245	if delete $self->{load_original};	1549	if delete $self->{load_original};
1246		1550
1247	if (my $uniq = $path->uniq_path) {	1551	if (my $uniq = $self->uniq_path) {
1248	utf8::encode $uniq;	1552	utf8::encode $uniq;
1249	if (aio_open $uniq, O_RDONLY, 0) {	1553	if (aio_open $uniq, O_RDONLY, 0) {
1250	$self->clear_unique_items;	1554	$self->clear_unique_items;
1251	$self->load_objects ($uniq, 0);	1555	$self->_load_objects ($uniq, 0);
1252	}	1556	}
1253	}	1557	}
1254		1558
		1559	Coro::cede;
1255	# now do the right thing for maps	1560	# now do the right thing for maps
1256	$self->link_multipart_objects;	1561	$self->link_multipart_objects;
1257
1258	if ($self->{path}->is_style_map) {
1259	$self->{deny_save} = 1;
1260	$self->{deny_reset} = 1;
1261	} else {
1262	$self->fix_auto_apply;
1263	$self->decay_objects;
1264	$self->update_buttons;
1265	$self->set_darkness_map;
1266	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1267	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;
1268	$self->activate;	1573	$self->activate;
1269	}	1574	}
1270		1575
1271	$self->in_memory (cf::MAP_IN_MEMORY);	1576	$self->in_memory (cf::MAP_IN_MEMORY);
1272	}	1577	}
1273		1578
1274	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	$neigh->load;
		1612	}
		1613	}
		1614
		1615	sub find_sync {
1275	my ($path, $origin) = @_;	1616	my ($path, $origin) = @_;
1276		1617
1277	#warn "load_map_sync<$path, $origin>\n";#d#	1618	cf::sync_job { find $path, $origin }
		1619	}
1278		1620
1279	cf::sync_job {	1621	sub do_load_sync {
1280	my $map = cf::map::find_map $path, $origin	1622	my ($map) = @_;
1281	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;
1282	$map->load;	1645	$map->load;
1283	$map	1646
		1647	delete $MAP_PREFETCH{$path};
		1648	}
		1649	}
		1650	undef $MAP_PREFETCHER;
1284	}	1651	};
		1652	$MAP_PREFETCHER->prio (6);
		1653
		1654	()
1285	}	1655	}
1286		1656
1287	sub save {	1657	sub save {
1288	my ($self) = @_;	1658	my ($self) = @_;
1289		1659
		1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1661
1290	$self->{last_save} = $cf::RUNTIME;	1662	$self->{last_save} = $cf::RUNTIME;
1291		1663
1292	return unless $self->dirty;	1664	return unless $self->dirty;
1293		1665
1294	my $save = $self->{path}->save_path; utf8::encode $save;	1666	my $save = $self->save_path; utf8::encode $save;
1295	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1667	my $uniq = $self->uniq_path; utf8::encode $uniq;
1296		1668
1297	$self->{load_path} = $save;	1669	$self->{load_path} = $save;
1298		1670
1299	return if $self->{deny_save};	1671	return if $self->{deny_save};
1300		1672
		1673	local $self->{last_access} = $self->last_access;#d#
		1674
		1675	cf::async {
		1676	$_->contr->save for $self->players;
		1677	};
		1678
1301	if ($uniq) {	1679	if ($uniq) {
1302	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1303	$self->save_objects ($uniq, cf::IO_UNIQUES);	1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1304	} else {	1682	} else {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1306	}	1684	}
1307	}	1685	}
1308		1686
1309	sub swap_out {	1687	sub swap_out {
1310	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;
1311		1694
1312	return if $self->players;	1695	return if $self->players;
1313	return if $self->in_memory != cf::MAP_IN_MEMORY;	1696	return if $self->in_memory != cf::MAP_IN_MEMORY;
1314	return if $self->{deny_save};	1697	return if $self->{deny_save};
1315		1698
1316	$self->save;
1317	$self->clear;	1699	$self->clear;
1318	$self->in_memory (cf::MAP_SWAPPED);	1700	$self->in_memory (cf::MAP_SWAPPED);
1319	}	1701	}
1320		1702
1321	sub reset_at {	1703	sub reset_at {
1322	my ($self) = @_;	1704	my ($self) = @_;
1323		1705
1324	# TODO: safety, remove and allow resettable per-player maps	1706	# TODO: safety, remove and allow resettable per-player maps
1325	return 1e99 if $self->{path}{user_rel};	1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1326	return 1e99 if $self->{deny_reset};	1708	return 1e99 if $self->{deny_reset};
1327		1709
1328	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1329	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1330		1712
…		…
1335	my ($self) = @_;	1717	my ($self) = @_;
1336		1718
1337	$self->reset_at <= $cf::RUNTIME	1719	$self->reset_at <= $cf::RUNTIME
1338	}	1720	}
1339		1721
1340	sub unlink_save {
1341	my ($self) = @_;
1342
1343	utf8::encode (my $save = $self->{path}->save_path);
1344	aioreq_pri 3; IO::AIO::aio_unlink $save;
1345	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1346	}
1347
1348	sub rename {
1349	my ($self, $new_path) = @_;
1350
1351	$self->unlink_save;
1352
1353	delete $cf::MAP{$self->path};
1354	$self->{path} = new cf::path $new_path;
1355	$self->path ($self->{path}->as_string);
1356	$cf::MAP{$self->path} = $self;
1357
1358	$self->save;
1359	}
1360
1361	sub reset {	1722	sub reset {
1362	my ($self) = @_;	1723	my ($self) = @_;
1363		1724
		1725	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1726
1364	return if $self->players;	1727	return if $self->players;
1365	return if $self->{path}{user_rel};#d#	1728	return if $self->isa ("ext::map_per_player");#d#
1366		1729
1367	warn "resetting map ", $self->path;#d#	1730	warn "resetting map ", $self->path;#d#
1368		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
1369	delete $cf::MAP{$self->path};	1742	delete $cf::MAP{$self->path};
		1743
		1744	$self->clear;
1370		1745
1371	$_->clear_links_to ($self) for values %cf::MAP;	1746	$_->clear_links_to ($self) for values %cf::MAP;
1372		1747
1373	$self->unlink_save;	1748	$self->unlink_save;
1374	$self->destroy;	1749	$self->destroy;
…		…
1377	my $nuke_counter = "aaaa";	1752	my $nuke_counter = "aaaa";
1378		1753
1379	sub nuke {	1754	sub nuke {
1380	my ($self) = @_;	1755	my ($self) = @_;
1381		1756
		1757	delete $cf::MAP{$self->path};
		1758
		1759	$self->unlink_save;
		1760
		1761	bless $self, "cf::map";
		1762	delete $self->{deny_reset};
1382	$self->{deny_save} = 1;	1763	$self->{deny_save} = 1;
1383	$self->reset_timeout (1);	1764	$self->reset_timeout (1);
1384	$self->rename ("{nuke}/" . ($nuke_counter++));	1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1766
		1767	$cf::MAP{$self->path} = $self;
		1768
1385	$self->reset; # polite request, might not happen	1769	$self->reset; # polite request, might not happen
1386	}	1770	}
1387		1771
1388	sub customise_for {	1772	=item cf::map::unique_maps
1389	my ($map, $ob) = @_;
1390		1773
1391	if ($map->per_player) {	1774	Returns an arrayref of paths of all shared maps that have
1392	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1775	instantiated unique items. May block.
1393	}
1394		1776
1395	$map	1777	=cut
1396	}
1397		1778
1398	sub emergency_save {	1779	sub unique_maps() {
1399	local $cf::FREEZE = 1;	1780	my $files = aio_readdir $UNIQUEDIR
		1781	or return;
1400		1782
1401	warn "enter emergency map save\n";	1783	my @paths;
1402		1784
1403	cf::sync_job {	1785	for (@$files) {
1404	warn "begin emergency map save\n";	1786	utf8::decode $_;
1405	$_->save for values %cf::MAP;	1787	next if /\.pst$/;
		1788	next unless /^$PATH_SEP/o;
		1789
		1790	push @paths, cf::map::normalise $_;
1406	};	1791	}
1407		1792
1408	warn "end emergency map save\n";	1793	\@paths
1409	}	1794	}
1410		1795
1411	package cf;	1796	package cf;
1412		1797
1413	=back	1798	=back
1414		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
1415		1826
1416	=head3 cf::object::player	1827	=head3 cf::object::player
1417		1828
1418	=over 4	1829	=over 4
1419		1830
…		…
1459		1870
1460	=item $player_object->enter_link	1871	=item $player_object->enter_link
1461		1872
1462	Freezes the player and moves him/her to a special map (C<{link}>).	1873	Freezes the player and moves him/her to a special map (C<{link}>).
1463		1874
1464	The player should be reaosnably safe there for short amounts of time. You	1875	The player should be reasonably safe there for short amounts of time. You
1465	I<MUST> call C<leave_link> as soon as possible, though.	1876	I<MUST> call C<leave_link> as soon as possible, though.
1466		1877
		1878	Will never block.
		1879
1467	=item $player_object->leave_link ($map, $x, $y)	1880	=item $player_object->leave_link ($map, $x, $y)
1468		1881
1469	Moves the player out of the specila link map onto the given map. If the	1882	Moves the player out of the special C<{link}> map onto the specified
1470	map is not valid (or omitted), the player will be moved back to the	1883	map. If the map is not valid (or omitted), the player will be moved back
1471	location he/she was before the call to C<enter_link>, or, if that fails,	1884	to the location he/she was before the call to C<enter_link>, or, if that
1472	to the emergency map position.	1885	fails, to the emergency map position.
1473		1886
1474	Might block.	1887	Might block.
1475		1888
1476	=cut	1889	=cut
		1890
		1891	sub link_map {
		1892	unless ($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	$LINK_MAP
		1899	}
1477		1900
1478	sub cf::object::player::enter_link {	1901	sub cf::object::player::enter_link {
1479	my ($self) = @_;	1902	my ($self) = @_;
1480		1903
1481	$self->deactivate_recursive;	1904	$self->deactivate_recursive;
1482		1905
1483	return if $self->map == $LINK_MAP;	1906	return if UNIVERSAL::isa $self->map, "ext::map_link";
1484		1907
1485	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1486	if $self->map;	1909	if $self->map;
1487		1910
1488	$self->enter_map ($LINK_MAP, 20, 20);	1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1489	}	1912	}
1490		1913
1491	sub cf::object::player::leave_link {	1914	sub cf::object::player::leave_link {
1492	my ($self, $map, $x, $y) = @_;	1915	my ($self, $map, $x, $y) = @_;
1493		1916
1494	my $link_pos = delete $self->{_link_pos};	1917	my $link_pos = delete $self->{_link_pos};
1495		1918
1496	unless ($map) {	1919	unless ($map) {
1497	# restore original map position	1920	# restore original map position
1498	($map, $x, $y) = @{ $link_pos || [] };	1921	($map, $x, $y) = @{ $link_pos || [] };
1499	$map = cf::map::find_map $map;	1922	$map = cf::map::find $map;
1500		1923
1501	unless ($map) {	1924	unless ($map) {
1502	($map, $x, $y) = @$EMERGENCY_POSITION;	1925	($map, $x, $y) = @$EMERGENCY_POSITION;
1503	$map = cf::map::find_map $map	1926	$map = cf::map::find $map
1504	or die "FATAL: cannot load emergency map\n";	1927	or die "FATAL: cannot load emergency map\n";
1505	}	1928	}
1506	}	1929	}
1507		1930
1508	($x, $y) = (-1, -1)	1931	($x, $y) = (-1, -1)
…		…
1511	# use -1 or undef as default coordinates, not 0, 0	1934	# use -1 or undef as default coordinates, not 0, 0
1512	($x, $y) = ($map->enter_x, $map->enter_y)	1935	($x, $y) = ($map->enter_x, $map->enter_y)
1513	if $x <=0 && $y <= 0;	1936	if $x <=0 && $y <= 0;
1514		1937
1515	$map->load;	1938	$map->load;
		1939	$map->load_diag;
1516		1940
		1941	return unless $self->contr->active;
1517	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1518	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1519	}	1946	}
1520		1947
1521	cf::player->attach (	1948	cf::player->attach (
1522	on_logout => sub {	1949	on_logout => sub {
…		…
1534		1961
1535	# try to abort aborted map switching on player login :)	1962	# try to abort aborted map switching on player login :)
1536	# should happen only on crashes	1963	# should happen only on crashes
1537	if ($pl->ob->{_link_pos}) {	1964	if ($pl->ob->{_link_pos}) {
1538	$pl->ob->enter_link;	1965	$pl->ob->enter_link;
1539	Coro::async {	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);
1540	# we need this sleep as the login has a concurrent enter_exit running	1971	# we need this sleep as the login has a concurrent enter_exit running
1541	# and this sleep increases chances of the player not ending up in scorn	1972	# and this sleep increases chances of the player not ending up in scorn
1542	Coro::Timer::sleep 1;	1973	Coro::Timer::sleep 1;
1543	$pl->ob->leave_link;	1974	$pl->ob->leave_link;
1544	};	1975	})->prio (2);
1545	}	1976	}
1546	},	1977	},
1547	);	1978	);
1548		1979
1549	=item $player_object->goto_map ($path, $x, $y)	1980	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1550		1981
1551	=cut	1982	Moves the player to the given map-path and coordinates by first freezing
		1983	her, loading and preparing them map, calling the provided $check callback
		1984	that has to return the map if sucecssful, and then unfreezes the player on
		1985	the new (success) or old (failed) map position.
1552		1986
		1987	=cut
		1988
1553	sub cf::object::player::goto_map {	1989	sub cf::object::player::goto {
1554	my ($self, $path, $x, $y) = @_;	1990	my ($self, $path, $x, $y, $check) = @_;
1555		1991
1556	$self->enter_link;	1992	$self->enter_link;
1557		1993
1558	(Coro::async {	1994	(async {
1559	$path = new cf::path $path;	1995	my $map = eval {
1560
1561	my $map = cf::map::find_map $path->as_string;	1996	my $map = cf::map::find $path;
		1997
		1998	if ($map) {
1562	$map = $map->customise_for ($self) if $map;	1999	$map = $map->customise_for ($self);
1563		2000	$map = $check->($map) if $check && $map;
1564	# warn "entering ", $map->path, " at ($x, $y)\n"	2001	} else {
1565	# if $map;
1566
1567	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2002	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2003	}
		2004
		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	}
1568		2012
1569	$self->leave_link ($map, $x, $y);	2013	$self->leave_link ($map, $x, $y);
1570	})->prio (1);	2014	})->prio (1);
1571	}	2015	}
1572		2016
…		…
1576		2020
1577	sub parse_random_map_params {	2021	sub parse_random_map_params {
1578	my ($spec) = @_;	2022	my ($spec) = @_;
1579		2023
1580	my $rmp = { # defaults	2024	my $rmp = { # defaults
1581	xsize => 10,	2025	xsize => (cf::rndm 15, 40),
1582	ysize => 10,	2026	ysize => (cf::rndm 15, 40),
		2027	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2028	#layout => string,
1583	};	2029	};
1584		2030
1585	for (split /\n/, $spec) {	2031	for (split /\n/, $spec) {
1586	my ($k, $v) = split /\s+/, $_, 2;	2032	my ($k, $v) = split /\s+/, $_, 2;
1587		2033
…		…
1591	$rmp	2037	$rmp
1592	}	2038	}
1593		2039
1594	sub prepare_random_map {	2040	sub prepare_random_map {
1595	my ($exit) = @_;	2041	my ($exit) = @_;
		2042
		2043	my $guard = cf::lock_acquire "exit_prepare:$exit";
1596		2044
1597	# all this does is basically replace the /! path by	2045	# all this does is basically replace the /! path by
1598	# a new random map path (?random/...) with a seed	2046	# a new random map path (?random/...) with a seed
1599	# that depends on the exit object	2047	# that depends on the exit object
1600		2048
1601	my $rmp = parse_random_map_params $exit->msg;	2049	my $rmp = parse_random_map_params $exit->msg;
1602		2050
1603	if ($exit->map) {	2051	if ($exit->map) {
1604	$rmp->{region} = $exit->map->region_name;	2052	$rmp->{region} = $exit->region->name;
1605	$rmp->{origin_map} = $exit->map->path;	2053	$rmp->{origin_map} = $exit->map->path;
1606	$rmp->{origin_x} = $exit->x;	2054	$rmp->{origin_x} = $exit->x;
1607	$rmp->{origin_y} = $exit->y;	2055	$rmp->{origin_y} = $exit->y;
1608	}	2056	}
1609		2057
1610	$rmp->{random_seed} ||= $exit->random_seed;	2058	$rmp->{random_seed} ||= $exit->random_seed;
1611		2059
1612	my $data = cf::to_json $rmp;	2060	my $data = cf::to_json $rmp;
1613	my $md5 = Digest::MD5::md5_hex $data;	2061	my $md5 = Digest::MD5::md5_hex $data;
		2062	my $meta = "$RANDOMDIR/$md5.meta";
1614		2063
1615	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) {
1616	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;
1617		2068
1618	$exit->slaying ("?random/$md5");	2069	$exit->slaying ("?random/$md5");
1619	$exit->msg (undef);	2070	$exit->msg (undef);
1620	}	2071	}
1621	}	2072	}
…		…
1623	sub cf::object::player::enter_exit {	2074	sub cf::object::player::enter_exit {
1624	my ($self, $exit) = @_;	2075	my ($self, $exit) = @_;
1625		2076
1626	return unless $self->type == cf::PLAYER;	2077	return unless $self->type == cf::PLAYER;
1627		2078
		2079	if ($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
1628	$self->enter_link;	2090	$self->enter_link;
1629		2091
1630	(Coro::async {	2092	(async {
		2093	$self->deactivate_recursive; # just to be sure
1631	unless (eval {	2094	unless (eval {
1632		2095	$self->goto ($slaying, $hp, $sp);
1633	prepare_random_map $exit
1634	if $exit->slaying eq "/!";
1635
1636	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1637	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1638		2096
1639	1;	2097	1;
1640	}) {	2098	}) {
1641	$self->message ("Something went wrong deep within the crossfire server. "	2099	$self->message ("Something went wrong deep within the crossfire server. "
1642	. "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. "
1643	. "Please report this to the dungeon master",	2101	. "Please report this to the dungeon master!",
1644	cf::NDI_UNIQUE | cf::NDI_RED);	2102	cf::NDI_UNIQUE | cf::NDI_RED);
1645		2103
1646	warn "ERROR in enter_exit: $@";	2104	warn "ERROR in enter_exit: $@";
1647	$self->leave_link;	2105	$self->leave_link;
1648	}	2106	}
1649	})->prio (1);	2107	})->prio (1);
…		…
1662		2120
1663	sub cf::client::send_drawinfo {	2121	sub cf::client::send_drawinfo {
1664	my ($self, $text, $flags) = @_;	2122	my ($self, $text, $flags) = @_;
1665		2123
1666	utf8::encode $text;	2124	utf8::encode $text;
1667	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2125	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1668	}	2126	}
1669		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	}
1670		2140
1671	=item $success = $client->query ($flags, "text", \&cb)	2141	=item $success = $client->query ($flags, "text", \&cb)
1672		2142
1673	Queues a query to the client, calling the given callback with	2143	Queues a query to the client, calling the given callback with
1674	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>,
…		…
1699	on_reply => sub {	2169	on_reply => sub {
1700	my ($ns, $msg) = @_;	2170	my ($ns, $msg) = @_;
1701		2171
1702	# this weird shuffling is so that direct followup queries	2172	# this weird shuffling is so that direct followup queries
1703	# get handled first	2173	# get handled first
1704	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
1705		2176
1706	(shift @$queue)->[1]->($msg);	2177	(shift @$queue)->[1]->($msg);
		2178	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1707		2179
1708	push @{ $ns->{query_queue} }, @$queue;	2180	push @{ $ns->{query_queue} }, @$queue;
1709		2181
1710	if (@{ $ns->{query_queue} } == @$queue) {	2182	if (@{ $ns->{query_queue} } == @$queue) {
1711	if (@$queue) {	2183	if (@$queue) {
…		…
1715	}	2187	}
1716	}	2188	}
1717	},	2189	},
1718	);	2190	);
1719		2191
1720	=item $client->coro (\&cb)	2192	=item $client->async (\&cb)
1721		2193
1722	Create a new coroutine, running the specified callback. The coroutine will	2194	Create a new coroutine, running the specified callback. The coroutine will
1723	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,
1724	or loss of connection).	2196	or loss of connection).
1725		2197
1726	=cut	2198	=cut
1727		2199
1728	sub cf::client::coro {	2200	sub cf::client::async {
1729	my ($self, $cb) = @_;	2201	my ($self, $cb) = @_;
1730		2202
1731	my $coro; $coro = async {	2203	my $coro = &Coro::async ($cb);
1732	eval {
1733	$cb->();
1734	};
1735	warn $@ if $@;
1736	};
1737		2204
1738	$coro->on_destroy (sub {	2205	$coro->on_destroy (sub {
1739	delete $self->{_coro}{$coro+0};	2206	delete $self->{_coro}{$coro+0};
1740	});	2207	});
1741		2208
…		…
1774		2241
1775	# here we export the classes and methods available to script code	2242	# here we export the classes and methods available to script code
1776		2243
1777	=pod	2244	=pod
1778		2245
1779	The following fucntions and emthods are available within a safe environment:	2246	The following functions and methods are available within a safe environment:
1780		2247
1781	cf::object contr pay_amount pay_player map	2248	cf::object contr pay_amount pay_player map
1782	cf::object::player player	2249	cf::object::player player
1783	cf::player peaceful	2250	cf::player peaceful
1784	cf::map trigger	2251	cf::map trigger
…		…
1869	#############################################################################	2336	#############################################################################
1870		2337
1871	=head2 EXTENSION DATABASE SUPPORT	2338	=head2 EXTENSION DATABASE SUPPORT
1872		2339
1873	Crossfire maintains a very simple database for extension use. It can	2340	Crossfire maintains a very simple database for extension use. It can
1874	currently store anything that can be serialised using Storable, which	2341	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1875	excludes objects.	2342	convert to/from binary).
1876		2343
1877	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
1878	using it, it should be unique.	2345	using it, it should be unique.
1879		2346
1880	=over 4	2347	=over 4
1881		2348
1882	=item $hashref = cf::db_get $family
1883
1884	Return a hashref for use by the extension C<$family>, which can be
1885	modified. After modifications, you have to call C<cf::db_dirty> or
1886	C<cf::db_sync>.
1887
1888	=item $value = cf::db_get $family => $key	2349	=item $value = cf::db_get $family => $key
1889		2350
1890	Returns a single value from the database	2351	Returns a single value from the database.
1891
1892	=item cf::db_put $family => $hashref
1893
1894	Stores the given family hashref into the database. Updates are delayed, if
1895	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1896		2352
1897	=item cf::db_put $family => $key => $value	2353	=item cf::db_put $family => $key => $value
1898		2354
1899	Stores the given C<$value> in the family hash. Updates are delayed, if you	2355	Stores the given C<$value> in the family.
1900	want the data to be synced to disk immediately, use C<cf::db_sync>.
1901
1902	=item cf::db_dirty
1903
1904	Marks the database as dirty, to be updated at a later time.
1905
1906	=item cf::db_sync
1907
1908	Immediately write the database to disk I<if it is dirty>.
1909		2356
1910	=cut	2357	=cut
1911		2358
1912	our $DB;	2359	our $DB;
1913		2360
1914	{	2361	sub db_init {
1915	my $path = cf::localdir . "/database.pst";	2362	unless ($DB) {
		2363	$DB = BDB::db_create $DB_ENV;
1916		2364
1917	sub db_load() {	2365	cf::sync_job {
1918	$DB = stat $path ? Storable::retrieve $path : { };	2366	eval {
1919	}	2367	$DB->set_flags (BDB::CHKSUM);
1920		2368
1921	my $pid;	2369	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1922		2370	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1923	sub db_save() {	2371	cf::cleanup "db_open(db): $!" if $!;
1924	waitpid $pid, 0 if $pid;	2372	};
1925	if (0 == ($pid = fork)) {	2373	cf::cleanup "db_open(db): $@" if $@;
1926	$DB->{_meta}{version} = 1;
1927	Storable::nstore $DB, "$path~";
1928	rename "$path~", $path;
1929	cf::_exit 0 if defined $pid;
1930	}	2374	};
1931	}
1932
1933	my $dirty;
1934
1935	sub db_sync() {
1936	db_save if $dirty;
1937	undef $dirty;
1938	}
1939
1940	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1941	db_sync;
1942	});	2375	}
		2376	}
1943		2377
1944	sub db_dirty() {
1945	$dirty = 1;
1946	$idle->start;
1947	}
1948
1949	sub db_get($;$) {	2378	sub db_get($$) {
1950	@_ >= 2	2379	my $key = "$_[0]/$_[1]";
1951	? $DB->{$_[0]}{$_[1]}
1952	: ($DB->{$_[0]} ||= { })
1953	}
1954		2380
		2381	cf::sync_job {
		2382	BDB::db_get $DB, undef, $key, my $data;
		2383
		2384	$! ? ()
		2385	: $data
		2386	}
		2387	}
		2388
1955	sub db_put($$;$) {	2389	sub db_put($$$) {
1956	if (@_ >= 3) {	2390	BDB::dbreq_pri 4;
1957	$DB->{$_[0]}{$_[1]} = $_[2];	2391	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1958	} else {	2392	}
1959	$DB->{$_[0]} = $_[1];
1960	}
1961	db_dirty;
1962	}
1963		2393
1964	cf::global->attach (	2394	=item cf::cache $id => [$paths...], $processversion => $process
1965	prio => 10000,	2395
1966	on_cleanup => sub {	2396	Generic caching function that returns the value of the resource $id,
1967	db_sync;	2397	caching and regenerating as required.
		2398
		2399	This function can block.
		2400
		2401	=cut
		2402
		2403	sub cache {
		2404	my ($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 "$src->[$_]: $!";
1968	},	2426	}
1969	);	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"
1970	}	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
1971		2509
1972	#############################################################################	2510	#############################################################################
1973	# 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	}
1974		2599
1975	sub cfg_load {	2600	sub cfg_load {
1976	open my $fh, "<:utf8", cf::confdir . "/config"	2601	open my $fh, "<:utf8", "$CONFDIR/config"
1977	or return;	2602	or return;
1978		2603
1979	local $/;	2604	local $/;
1980	*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	}
1981	}	2619	}
1982		2620
1983	sub main {	2621	sub main {
1984	# we must not ever block the main coroutine	2622	# we must not ever block the main coroutine
1985	local $Coro::idle = sub {	2623	local $Coro::idle = sub {
1986	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2624	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1987	(Coro::unblock_sub {	2625	(async {
1988	Event::one_event;	2626	Event::one_event;
1989	})->();	2627	})->prio (Coro::PRIO_MAX);
1990	};	2628	};
1991		2629
1992	cfg_load;	2630	cfg_load;
1993	db_load;	2631	db_init;
1994	load_extensions;	2632	load_extensions;
		2633
		2634	$TICK_WATCHER->start;
1995	Event::loop;	2635	Event::loop;
1996	}	2636	}
1997		2637
1998	#############################################################################	2638	#############################################################################
1999	# initialisation	2639	# initialisation and cleanup
2000		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
2001	sub reload() {	2696	sub do_reload_perl() {
2002	# can/must only be called in main	2697	# can/must only be called in main
2003	if ($Coro::current != $Coro::main) {	2698	if ($Coro::current != $Coro::main) {
2004	warn "can only reload from main coroutine\n";	2699	warn "can only reload from main coroutine";
2005	return;	2700	return;
2006	}	2701	}
2007		2702
2008	warn "reloading...";	2703	warn "reloading...";
2009		2704
2010	local $FREEZE = 1;	2705	warn "entering sync_job";
		2706
		2707	cf::sync_job {
		2708	cf::write_runtime; # external watchdog should not bark
2011	cf::emergency_save;	2709	cf::emergency_save;
		2710	cf::write_runtime; # external watchdog should not bark
2012		2711
2013	eval {	2712	warn "syncing database to disk";
		2713	BDB::db_env_txn_checkpoint $DB_ENV;
		2714
2014	# 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
2015		2716
2016	# cancel all watchers	2717	warn "cancelling all WF_AUTOCANCEL watchers";
2017	for (Event::all_watchers) {	2718	for (Event::all_watchers) {
2018	$_->cancel if $_->data & WF_AUTOCANCEL;	2719	$_->cancel if $_->data & WF_AUTOCANCEL;
2019	}	2720	}
2020		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
2021	# cancel all extension coros	2733	warn "cancelling all extension coros";
2022	$_->cancel for values %EXT_CORO;	2734	$_->cancel for values %EXT_CORO;
2023	%EXT_CORO = ();	2735	%EXT_CORO = ();
2024		2736
2025	# unload all extensions	2737	warn "removing commands";
2026	for (@exts) {	2738	%COMMAND = ();
		2739
		2740	warn "removing ext commands";
		2741	%EXTCMD = ();
		2742
		2743	warn "unloading/nuking all extensions";
		2744	for my $pkg (@EXTS) {
2027	warn "unloading <$_>";	2745	warn "... unloading $pkg";
2028	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: $@";
2029	}	2752	}
2030		2753
		2754	warn "... nuking $pkg";
		2755	Symbol::delete_package $pkg;
		2756	}
		2757
2031	# unload all modules loaded from $LIBDIR	2758	warn "unloading all perl modules loaded from $LIBDIR";
2032	while (my ($k, $v) = each %INC) {	2759	while (my ($k, $v) = each %INC) {
2033	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2760	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2034		2761
2035	warn "removing <$k>";	2762	warn "... unloading $k";
2036	delete $INC{$k};	2763	delete $INC{$k};
2037		2764
2038	$k =~ s/\.pm$//;	2765	$k =~ s/\.pm$//;
2039	$k =~ s/\//::/g;	2766	$k =~ s/\//::/g;
2040		2767
…		…
2043	}	2770	}
2044		2771
2045	Symbol::delete_package $k;	2772	Symbol::delete_package $k;
2046	}	2773	}
2047		2774
2048	# sync database to disk
2049	cf::db_sync;
2050	IO::AIO::flush;
2051
2052	# get rid of safe::, as good as possible	2775	warn "getting rid of safe::, as good as possible";
2053	Symbol::delete_package "safe::$_"	2776	Symbol::delete_package "safe::$_"
2054	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);
2055		2778
2056	# remove register_script_function callbacks
2057	# TODO
2058
2059	# unload cf.pm "a bit"	2779	warn "unloading cf.pm \"a bit\"";
2060	delete $INC{"cf.pm"};	2780	delete $INC{"cf.pm"};
		2781	delete $INC{"cf/pod.pm"};
2061		2782
2062	# don't, removes xs symbols, too,	2783	# don't, removes xs symbols, too,
2063	# and global variables created in xs	2784	# and global variables created in xs
2064	#Symbol::delete_package __PACKAGE__;	2785	#Symbol::delete_package __PACKAGE__;
2065		2786
2066	# reload cf.pm	2787	warn "unload completed, starting to reload now";
		2788
2067	warn "reloading cf.pm";	2789	warn "reloading cf.pm";
2068	require cf;	2790	require cf;
2069	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2791	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2070		2792
2071	# load config and database again	2793	warn "loading config and database again";
2072	cf::cfg_load;	2794	cf::cfg_load;
2073	cf::db_load;
2074		2795
2075	# load extensions
2076	warn "load extensions";	2796	warn "loading extensions";
2077	cf::load_extensions;	2797	cf::load_extensions;
2078		2798
2079	# reattach attachments to objects	2799	warn "reattaching attachments to objects/players";
2080	warn "reattach";	2800	_global_reattach; # objects, sockets
2081	_global_reattach;	2801	warn "reattaching attachments to maps";
2082	};	2802	reattach $_ for values %MAP;
		2803	warn "reattaching attachments to players";
		2804	reattach $_ for values %PLAYER;
2083		2805
2084	if ($@) {	2806	warn "leaving sync_job";
		2807
		2808	1
		2809	} or do {
2085	warn $@;	2810	warn $@;
2086	warn "error while reloading, exiting.";	2811	warn "error while reloading, exiting.";
2087	exit 1;	2812	exit 1;
2088	}	2813	};
2089		2814
2090	warn "reloaded successfully";	2815	warn "reloaded";
2091	};	2816	};
2092		2817
2093	#############################################################################	2818	our $RELOAD_WATCHER; # used only during reload
2094		2819
2095	unless ($LINK_MAP) {	2820	sub reload_perl() {
2096	$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.
2097		2823
2098	$LINK_MAP->width (41);	2824	$RELOAD_WATCHER ||= Event->timer (
2099	$LINK_MAP->height (41);	2825	reentrant => 0,
2100	$LINK_MAP->alloc;
2101	$LINK_MAP->path ("{link}");
2102	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2103	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2104
2105	# dirty hack because... archetypes are not yet loaded
2106	Event->timer (
2107	after => 2,	2826	after => 0,
		2827	data => WF_AUTOCANCEL,
2108	cb => sub {	2828	cb => sub {
2109	$_[0]->w->cancel;	2829	do_reload_perl;
2110		2830	undef $RELOAD_WATCHER;
2111	# provide some exits "home"
2112	my $exit = cf::object::new "exit";
2113
2114	$exit->slaying ($EMERGENCY_POSITION->[0]);
2115	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2116	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2117
2118	$LINK_MAP->insert ($exit->clone, 19, 19);
2119	$LINK_MAP->insert ($exit->clone, 19, 20);
2120	$LINK_MAP->insert ($exit->clone, 19, 21);
2121	$LINK_MAP->insert ($exit->clone, 20, 19);
2122	$LINK_MAP->insert ($exit->clone, 20, 21);
2123	$LINK_MAP->insert ($exit->clone, 21, 19);
2124	$LINK_MAP->insert ($exit->clone, 21, 20);
2125	$LINK_MAP->insert ($exit->clone, 21, 21);
2126
2127	$exit->destroy;
2128	});	2831	},
2129		2832	);
2130	$LINK_MAP->{deny_save} = 1;
2131	$LINK_MAP->{deny_reset} = 1;
2132
2133	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2134	}	2833	}
2135
2136	register "<global>", __PACKAGE__;
2137		2834
2138	register_command "reload" => sub {	2835	register_command "reload" => sub {
2139	my ($who, $arg) = @_;	2836	my ($who, $arg) = @_;
2140		2837
2141	if ($who->flag (FLAG_WIZ)) {	2838	if ($who->flag (FLAG_WIZ)) {
2142	$who->message ("start of reload.");
2143	reload;
2144	$who->message ("end of reload.");	2839	$who->message ("reloading server.");
		2840	async { reload_perl };
2145	}	2841	}
2146	};	2842	};
2147		2843
2148	unshift @INC, $LIBDIR;	2844	unshift @INC, $LIBDIR;
2149		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;
2150	$TICK_WATCHER = Event->timer (	2871	$TICK_WATCHER = Event->timer (
2151	reentrant => 0,	2872	reentrant => 0,
		2873	parked => 1,
2152	prio => 0,	2874	prio => 0,
2153	at => $NEXT_TICK || $TICK,	2875	at => $NEXT_TICK || $TICK,
2154	data => WF_AUTOCANCEL,	2876	data => WF_AUTOCANCEL,
2155	cb => sub {	2877	cb => sub {
2156	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
2157	cf::server_tick; # one server iteration	2886	cf::server_tick; # one server iteration
2158	$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
2159	}	2909	};
2160		2910
		2911	$RUNTIME += $TICK;
2161	$NEXT_TICK += $TICK;	2912	$NEXT_TICK += $TICK;
2162		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
2163	# 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
2164	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2935	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2165		2936
2166	$TICK_WATCHER->at ($NEXT_TICK);	2937	$TICK_WATCHER->at ($NEXT_TICK);
2167	$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
2168	},	2946	},
2169	);	2947	);
2170		2948
		2949	{
2171	IO::AIO::max_poll_time $TICK * 0.2;	2950	BDB::max_poll_time $TICK * 0.1;
2172		2951	$BDB_POLL_WATCHER = Event->io (
2173	Event->io (	2952	reentrant => 0,
2174	fd => IO::AIO::poll_fileno,	2953	fd => BDB::poll_fileno,
2175	poll => 'r',	2954	poll => 'r',
2176	prio => 5,	2955	prio => 0,
2177	data => WF_AUTOCANCEL,
2178	cb => \&IO::AIO::poll_cb,
2179	);
2180
2181	Event->timer (
2182	data => WF_AUTOCANCEL,	2956	data => WF_AUTOCANCEL,
2183	after => 0,	2957	cb => \&BDB::poll_cb,
2184	interval => 10,	2958	);
2185	cb => sub {	2959	BDB::min_parallel 8;
2186	(Coro::unblock_sub {	2960
2187	write_runtime	2961	BDB::set_sync_prepare {
2188	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 $@;
2189	})->();	2995	};
2190	},	2996	}
2191	);	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 }
2192		3056
2193	1	3057	1
2194		3058

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