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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.130 by root, Thu Jan 4 00:08:08 2007 UTC vs.
Revision 1.270 by root, Sat May 26 15:44:06 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	}
249		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	$guard
		308	}
		309
250	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
251		311
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	312	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	313	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		314	thing you are allowed to do is call C<prio> on it.
254		315
255	=cut	316	=cut
256		317
257	sub async(&) {	318	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		319
266	=item cf::sync_job { BLOCK }	320	=item cf::sync_job { BLOCK }
267		321
268	The design of crossfire+ requires that the main coro ($Coro::main) is	322	The design of crossfire+ requires that the main coro ($Coro::main) is
269	always able to handle events or runnable, as crossfire+ is only partly	323	always able to handle events or runnable, as crossfire+ is only partly
…		…
278		332
279	sub sync_job(&) {	333	sub sync_job(&) {
280	my ($job) = @_;	334	my ($job) = @_;
281		335
282	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
283	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
285		341
286	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
287	# (but this is cancel-safe)	343	# (but this is cancel-safe)
288	local $FREEZE = 1;	344	my $freeze_guard = freeze_mainloop;
289		345
290	my $busy = 1;	346	my $busy = 1;
291	my @res;	347	my @res;
292		348
293	(Coro::async {	349	(async {
294	@res = eval { $job->() };	350	@res = eval { $job->() };
295	warn $@ if $@;	351	warn $@ if $@;
296	undef $busy;	352	undef $busy;
297	})->prio (Coro::PRIO_MAX);	353	})->prio (Coro::PRIO_MAX);
298		354
299	while ($busy) {	355	while ($busy) {
300	Coro::cede_notself;	356	Coro::cede or Event::one_event;
301	Event::one_event unless Coro::nready;
302	}	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
303		365
304	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
305	} else {	367	} else {
306	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
307		369
308	$job->()	370	$job->()
309	}	371	}
310	}	372	}
311		373
312	=item $coro = cf::coro { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
313		375
314	Creates and returns a new coro. This coro is automcatially being canceled	376	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	377	extension calling this is being unloaded.
316		378
317	=cut	379	=cut
318		380
319	sub coro(&) {	381	sub async_ext(&) {
320	my $cb = shift;	382	my $cb = shift;
321		383
322	my $coro = &cf::async ($cb);	384	my $coro = &Coro::async ($cb);
323		385
324	$coro->on_destroy (sub {	386	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	387	delete $EXT_CORO{$coro+0};
326	});	388	});
327	$EXT_CORO{$coro+0} = $coro;	389	$EXT_CORO{$coro+0} = $coro;
328		390
329	$coro	391	$coro
330	}	392	}
331		393
332	sub write_runtime {	394	sub write_runtime {
333	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";
334		405
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336	or return;	407	or return;
337		408
		409	my $value = $cf::RUNTIME + 90 + 10;
338	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
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;	414	and return;
341		415
		416	# always fsync - this file is important
342	aio_fsync $fh	417	aio_fsync $fh
343	and return;	418	and return;
344		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
345	close $fh	423	close $fh
346	or return;	424	or return;
347		425
348	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
349	and return;	427	and return;
350		428
		429	warn "runtime file written.\n";#d#
		430
351	1	431	1
352	}	432	}
353		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
354	=back	445	=back
355		446
356	=cut	447	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477		448
478	#############################################################################	449	#############################################################################
479		450
480	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
481		452
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	579	our @CB_MAP = ();
609		580
610	my %attachment;	581	my %attachment;
611		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
612	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
614		591
615	use sort 'stable';	592	use sort 'stable';
616		593
…		…
650	$registry = $CB_TYPE[$object_type] ||= [];	627	$registry = $CB_TYPE[$object_type] ||= [];
651		628
652	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
653	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
654	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
655	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
656		633
657	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
658	my $pkg = shift @arg;	635	my $pkg = shift @arg;
659		636
660	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
701	if (ref $_[0]) {	678	if (ref $_[0]) {
702	_object_attach @_;	679	_object_attach @_;
703	} else {	680	} else {
704	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
705	}	682	}
		683	_recalc_want;
706	};	684	};
707		685
708	# all those should be optimised	686	# all those should be optimised
709	sub cf::attachable::detach {	687	sub cf::attachable::detach {
710	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
713	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
714	reattach ($obj);	692	reattach ($obj);
715	} else {	693	} else {
716	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
717	}	695	}
		696	_recalc_want;
718	};	697	};
719		698
720	sub cf::attachable::attached {	699	sub cf::attachable::attached {
721	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
722		701
…		…
787	# object support	766	# object support
788		767
789	sub reattach {	768	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	769	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	770	my ($obj) = @_;
		771
		772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		773
793	my $registry = $obj->registry;	774	my $registry = $obj->registry;
794		775
795	@$registry = ();	776	@$registry = ();
796		777
…		…
843	$filename, length $$rdata, scalar @$objs;	824	$filename, length $$rdata, scalar @$objs;
844		825
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	827	chmod SAVE_MODE, $fh;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848	aio_fsync $fh;	829	aio_fsync $fh if $cf::USE_FSYNC;
849	close $fh;	830	close $fh;
850		831
851	if (@$objs) {	832	if (@$objs) {
852	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) {
853	chmod SAVE_MODE, $fh;	834	chmod SAVE_MODE, $fh;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	835	my $data = Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	836	aio_write $fh, 0, (length $data), $data, 0;
856	aio_fsync $fh;	837	aio_fsync $fh if $cf::USE_FSYNC;
857	close $fh;	838	close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	839	aio_rename "$filename.pst~", "$filename.pst";
859	}	840	}
860	} else {	841	} else {
861	aio_unlink "$filename.pst";	842	aio_unlink "$filename.pst";
…		…
928	=cut	909	=cut
929		910
930	sub register_extcmd {	911	sub register_extcmd {
931	my ($name, $cb) = @_;	912	my ($name, $cb) = @_;
932		913
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	914	$EXTCMD{$name} = $cb;
937	}	915	}
938		916
939	cf::player->attach (	917	cf::player->attach (
940	on_command => sub {	918	on_command => sub {
941	my ($pl, $name, $params) = @_;	919	my ($pl, $name, $params) = @_;
…		…
954		932
955	my $msg = eval { from_json $buf };	933	my $msg = eval { from_json $buf };
956		934
957	if (ref $msg) {	935	if (ref $msg) {
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	937	if (my %reply = $cb->($pl, $msg)) {
960	$pl->ext_reply ($msg->{msgid}, %reply);	938	$pl->ext_reply ($msg->{msgid}, %reply);
961	}	939	}
962	}	940	}
963	} else {	941	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
966		944
967	cf::override;	945	cf::override;
968	},	946	},
969	);	947	);
970		948
971	sub register {
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	sub load_extension {	949	sub load_extension {
978	my ($path) = @_;	950	my ($path) = @_;
979		951
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
981	my $base = $1;	953	my $base = $1;
982	my $pkg = $1;	954	my $pkg = $1;
983	$pkg =~ s/[^[:word:]]/_/g;	955	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";	956	$pkg = "ext::$pkg";
985		957
986	warn "loading '$path' into '$pkg'\n";	958	warn "... loading '$path' into '$pkg'\n";
987		959
988	open my $fh, "<:utf8", $path	960	open my $fh, "<:utf8", $path
989	or die "$path: $!";	961	or die "$path: $!";
990		962
991	my $source =	963	my $source =
992	"package $pkg; use strict; use utf8;\n"	964	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"	965	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })	966	. (do { local $/; <$fh> })
995	. "\n};\n1";	967	. "\n};\n1";
996		968
997	eval $source	969	unless (eval $source) {
998	or die $@ ? "$path: $@\n"	970	my $msg = $@ ? "$path: $@\n"
999	: "extension disabled.\n";	971	: "extension disabled.\n";
1000		972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1001	push @exts, $pkg;	973	warn $@;
1002	$ext_pkg{$base} = $pkg;	974	warn "mandatory extension failed to load, exiting.\n";
1003		975	exit 1;
1004	# no strict 'refs';	976	}
1005	# @{"$pkg\::ISA"} = ext::;	977	die $@;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }	978	}
1020		979
1021	# remove commands	980	push @EXTS, $pkg;
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}
1030	}
1031
1032	# remove extcmds
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}	981	}
1046		982
1047	sub load_extensions {	983	sub load_extensions {
1048	for my $ext (<$LIBDIR/*.ext>) {	984	for my $ext (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;	985	next unless -r $ext;
…		…
1053	} or warn "$ext not loaded: $@";	989	} or warn "$ext not loaded: $@";
1054	}	990	}
1055	}	991	}
1056		992
1057	#############################################################################	993	#############################################################################
1058	# load/save/clean perl data associated with a map
1059
1060	*cf::mapsupport::on_clean = sub {
1061	my ($map) = @_;
1062
1063	my $path = $map->tmpname;
1064	defined $path or return;
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}
1077
1078	# TODO: compatibility cruft, remove when no longer needed
1079	cf::player->attach (
1080	on_load => sub {
1081	my ($pl, $path) = @_;
1082
1083	for my $o (all_objects $pl->ob) {
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1085	$o->set_ob_key_value ("_perl_data");
1086
1087	%$o = %{ Storable::thaw pack "H*", $value };
1088	}
1089	}
1090	},
1091	);
1092
1093	#############################################################################
1094		994
1095	=head2 CORE EXTENSIONS	995	=head2 CORE EXTENSIONS
1096		996
1097	Functions and methods that extend core crossfire objects.	997	Functions and methods that extend core crossfire objects.
1098		998
		999	=cut
		1000
		1001	package cf::player;
		1002
		1003	use Coro::AIO;
		1004
1099	=head3 cf::player	1005	=head3 cf::player
1100		1006
1101	=over 4	1007	=over 4
1102		1008
1103	=item cf::player::exists $login	1009	=item cf::player::find $login
1104		1010
1105	Returns true when the given account exists.	1011	Returns the given player object, loading it if necessary (might block).
1106		1012
1107	=cut	1013	=cut
1108		1014
1109	sub cf::player::exists($) {	1015	sub playerdir($) {
1110	cf::player::find $_[0]	1016	"$PLAYERDIR/"
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	1018	}
1113		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
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)	1191	=item $player->ext_reply ($msgid, %msg)
1115		1192
1116	Sends an ext reply to the player.	1193	Sends an ext reply to the player.
1117		1194
1118	=cut	1195	=cut
1119		1196
1120	sub cf::player::ext_reply($$$%) {	1197	sub ext_reply($$%) {
1121	my ($self, $id, %msg) = @_;	1198	my ($self, $id, %msg) = @_;
1122		1199
1123	$msg{msgid} = $id;	1200	$msg{msgid} = $id;
1124		1201
1125	$self->send ("ext " . to_json \%msg);	1202	$self->send ("ext " . cf::to_json \%msg);
		1203	}
		1204
		1205	=item $player->ext_event ($type, %msg)
		1206
		1207	Sends an ext event to the client.
		1208
		1209	=cut
		1210
		1211	sub ext_event($$%) {
		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
1126	}	1244	}
1127		1245
1128	=back	1246	=back
1129
1130		1247
1131	=head3 cf::map	1248	=head3 cf::map
1132		1249
1133	=over 4	1250	=over 4
1134		1251
…		…
1137	package cf::map;	1254	package cf::map;
1138		1255
1139	use Fcntl;	1256	use Fcntl;
1140	use Coro::AIO;	1257	use Coro::AIO;
1141		1258
		1259	use overload
		1260	'""' => \&as_string,
		1261	fallback => 1;
		1262
1142	our $MAX_RESET = 7200;	1263	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1264	our $DEFAULT_RESET = 3000;
1144		1265
1145	sub generate_random_map {	1266	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1267	my ($self, $rmp) = @_;
1147
1148	# mit "rum" bekleckern, nicht	1268	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1269	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1273	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1274	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1277	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$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},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1279	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(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"
1162	}	1411	}
1163		1412
1164	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1165	# all maps in C++...	1414	# all maps in C++...
1166	sub change_all_map_light {	1415	sub change_all_map_light {
…		…
1168		1417
1169	$_->change_map_light ($change)	1418	$_->change_map_light ($change)
1170	for grep $_->outdoor, values %cf::MAP;	1419	for grep $_->outdoor, values %cf::MAP;
1171	}	1420	}
1172		1421
		1422	sub unlink_save {
		1423	my ($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
1173	sub try_load_header($) {	1430	sub load_header_from($) {
1174	my ($path) = @_;	1431	my ($self, $path) = @_;
1175		1432
1176	utf8::encode $path;	1433	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1434	#aio_open $path, O_RDONLY, 0
		1435	# or return;
		1436
		1437	$self->_load_header ($path)
1178	or return;	1438	or return;
1179		1439
1180	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
1181	or return;	1483	or return;
		1484	$self->prepare_orig;
		1485	}
1182		1486
1183	$map->load_header ($path)	1487	$self->default_region (cf::region::find_by_path $self->{path})
1184	or return;	1488	unless $self->default_region;
1185		1489
1186	$map->{load_path} = $path;	1490	1
1187
1188	$map
1189	}	1491	}
1190		1492
1191	sub find_map;	1493	sub find;
1192	sub find_map {	1494	sub find {
1193	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1194		1496
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	1497	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		1498
1200	cf::lock_wait "map_find:$key";	1499	cf::lock_wait "map_find:$path";
1201		1500
1202	$cf::MAP{$key} || do {	1501	$cf::MAP{$path} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	1502	my $guard = cf::lock_acquire "map_find:$path";
1204		1503	my $map = new_from_path cf::map $path
1205	# do it the slow way
1206	my $map = try_load_header $path->save_path;
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	1504	or return;
1220		1505
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	1506	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		1507
1234	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;
1235	$map->reset;	1514	$map->reset;
1236	undef $guard;	1515	undef $guard;
1237	$map = find_map $path	1516	return find $path;
1238	or return;
1239	}	1517	}
1240		1518
1241	$cf::MAP{$key} = $map	1519	$cf::MAP{$path} = $map
1242	}	1520	}
1243	}	1521	}
		1522
		1523	sub pre_load { }
		1524	sub post_load { }
1244		1525
1245	sub load {	1526	sub load {
1246	my ($self) = @_;	1527	my ($self) = @_;
1247		1528
		1529	local $self->{deny_reset} = 1; # loading can take a long time
		1530
1248	my $path = $self->{path};	1531	my $path = $self->{path};
		1532
		1533	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1534	my $guard = cf::lock_acquire "map_load:$path";
1250		1535
1251	return if $self->in_memory != cf::MAP_SWAPPED;	1536	return if $self->in_memory != cf::MAP_SWAPPED;
1252		1537
1253	$self->in_memory (cf::MAP_LOADING);	1538	$self->in_memory (cf::MAP_LOADING);
1254		1539
1255	$self->alloc;	1540	$self->alloc;
		1541
		1542	$self->pre_load;
		1543	Coro::cede;
		1544
1256	$self->load_objects ($self->{load_path}, 1)	1545	$self->_load_objects ($self->{load_path}, 1)
1257	or return;	1546	or return;
1258		1547
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260	if delete $self->{load_original};	1549	if delete $self->{load_original};
1261		1550
1262	if (my $uniq = $path->uniq_path) {	1551	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	1552	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	1553	if (aio_open $uniq, O_RDONLY, 0) {
1265	$self->clear_unique_items;	1554	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	1555	$self->_load_objects ($uniq, 0);
1267	}	1556	}
1268	}	1557	}
1269		1558
		1559	Coro::cede;
1270	# now do the right thing for maps	1560	# now do the right thing for maps
1271	$self->link_multipart_objects;	1561	$self->link_multipart_objects;
1272
1273	if ($self->{path}->is_style_map) {
1274	$self->{deny_save} = 1;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;
1280	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1282	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;
1283	$self->activate;	1573	$self->activate;
1284	}	1574	}
1285		1575
1286	$self->in_memory (cf::MAP_IN_MEMORY);	1576	$self->in_memory (cf::MAP_IN_MEMORY);
1287	}	1577	}
1288		1578
1289	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	$neigh->load;
		1612	}
		1613	}
		1614
		1615	sub find_sync {
1290	my ($path, $origin) = @_;	1616	my ($path, $origin) = @_;
1291		1617
1292	#warn "load_map_sync<$path, $origin>\n";#d#	1618	cf::sync_job { find $path, $origin }
		1619	}
1293		1620
1294	cf::sync_job {	1621	sub do_load_sync {
1295	my $map = cf::map::find_map $path, $origin	1622	my ($map) = @_;
1296	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;
1297	$map->load;	1645	$map->load;
1298	$map	1646
		1647	delete $MAP_PREFETCH{$path};
		1648	}
		1649	}
		1650	undef $MAP_PREFETCHER;
1299	}	1651	};
		1652	$MAP_PREFETCHER->prio (6);
		1653
		1654	()
1300	}	1655	}
1301		1656
1302	sub save {	1657	sub save {
1303	my ($self) = @_;	1658	my ($self) = @_;
1304		1659
		1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1661
1305	$self->{last_save} = $cf::RUNTIME;	1662	$self->{last_save} = $cf::RUNTIME;
1306		1663
1307	return unless $self->dirty;	1664	return unless $self->dirty;
1308		1665
1309	my $save = $self->{path}->save_path; utf8::encode $save;	1666	my $save = $self->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1667	my $uniq = $self->uniq_path; utf8::encode $uniq;
1311		1668
1312	$self->{load_path} = $save;	1669	$self->{load_path} = $save;
1313		1670
1314	return if $self->{deny_save};	1671	return if $self->{deny_save};
1315		1672
		1673	local $self->{last_access} = $self->last_access;#d#
		1674
		1675	cf::async {
		1676	$_->contr->save for $self->players;
		1677	};
		1678
1316	if ($uniq) {	1679	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	1682	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	1684	}
1322	}	1685	}
1323		1686
1324	sub swap_out {	1687	sub swap_out {
1325	my ($self) = @_;	1688	my ($self) = @_;
1326		1689
1327	# save first because save cedes	1690	# save first because save cedes
1328	$self->save;	1691	$self->save;
		1692
		1693	my $lock = cf::lock_acquire "map_data:" . $self->path;
1329		1694
1330	return if $self->players;	1695	return if $self->players;
1331	return if $self->in_memory != cf::MAP_IN_MEMORY;	1696	return if $self->in_memory != cf::MAP_IN_MEMORY;
1332	return if $self->{deny_save};	1697	return if $self->{deny_save};
1333		1698
…		…
1337		1702
1338	sub reset_at {	1703	sub reset_at {
1339	my ($self) = @_;	1704	my ($self) = @_;
1340		1705
1341	# TODO: safety, remove and allow resettable per-player maps	1706	# TODO: safety, remove and allow resettable per-player maps
1342	return 1e99 if $self->{path}{user_rel};	1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1343	return 1e99 if $self->{deny_reset};	1708	return 1e99 if $self->{deny_reset};
1344		1709
1345	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1346	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1347		1712
…		…
1352	my ($self) = @_;	1717	my ($self) = @_;
1353		1718
1354	$self->reset_at <= $cf::RUNTIME	1719	$self->reset_at <= $cf::RUNTIME
1355	}	1720	}
1356		1721
1357	sub unlink_save {
1358	my ($self) = @_;
1359
1360	utf8::encode (my $save = $self->{path}->save_path);
1361	aioreq_pri 3; IO::AIO::aio_unlink $save;
1362	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1363	}
1364
1365	sub rename {
1366	my ($self, $new_path) = @_;
1367
1368	$self->unlink_save;
1369
1370	delete $cf::MAP{$self->path};
1371	$self->{path} = new cf::path $new_path;
1372	$self->path ($self->{path}->as_string);
1373	$cf::MAP{$self->path} = $self;
1374
1375	$self->save;
1376	}
1377
1378	sub reset {	1722	sub reset {
1379	my ($self) = @_;	1723	my ($self) = @_;
1380		1724
		1725	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1726
1381	return if $self->players;	1727	return if $self->players;
1382	return if $self->{path}{user_rel};#d#	1728	return if $self->isa ("ext::map_per_player");#d#
1383		1729
1384	warn "resetting map ", $self->path;#d#	1730	warn "resetting map ", $self->path;#d#
1385		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
1386	delete $cf::MAP{$self->path};	1742	delete $cf::MAP{$self->path};
		1743
		1744	$self->clear;
1387		1745
1388	$_->clear_links_to ($self) for values %cf::MAP;	1746	$_->clear_links_to ($self) for values %cf::MAP;
1389		1747
1390	$self->unlink_save;	1748	$self->unlink_save;
1391	$self->destroy;	1749	$self->destroy;
…		…
1394	my $nuke_counter = "aaaa";	1752	my $nuke_counter = "aaaa";
1395		1753
1396	sub nuke {	1754	sub nuke {
1397	my ($self) = @_;	1755	my ($self) = @_;
1398		1756
		1757	delete $cf::MAP{$self->path};
		1758
		1759	$self->unlink_save;
		1760
		1761	bless $self, "cf::map";
		1762	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	1763	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	1764	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1766
		1767	$cf::MAP{$self->path} = $self;
		1768
1402	$self->reset; # polite request, might not happen	1769	$self->reset; # polite request, might not happen
1403	}	1770	}
1404		1771
1405	sub customise_for {	1772	=item cf::map::unique_maps
1406	my ($map, $ob) = @_;
1407		1773
1408	if ($map->per_player) {	1774	Returns an arrayref of paths of all shared maps that have
1409	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1775	instantiated unique items. May block.
1410	}
1411		1776
1412	$map	1777	=cut
1413	}
1414		1778
1415	sub emergency_save {	1779	sub unique_maps() {
1416	local $cf::FREEZE = 1;	1780	my $files = aio_readdir $UNIQUEDIR
		1781	or return;
1417		1782
1418	warn "enter emergency map save\n";	1783	my @paths;
1419		1784
1420	cf::sync_job {	1785	for (@$files) {
1421	warn "begin emergency map save\n";	1786	utf8::decode $_;
1422	$_->save for values %cf::MAP;	1787	next if /\.pst$/;
		1788	next unless /^$PATH_SEP/o;
		1789
		1790	push @paths, cf::map::normalise $_;
1423	};	1791	}
1424		1792
1425	warn "end emergency map save\n";	1793	\@paths
1426	}	1794	}
1427		1795
1428	package cf;	1796	package cf;
1429		1797
1430	=back	1798	=back
1431		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
1432		1826
1433	=head3 cf::object::player	1827	=head3 cf::object::player
1434		1828
1435	=over 4	1829	=over 4
1436		1830
…		…
1476		1870
1477	=item $player_object->enter_link	1871	=item $player_object->enter_link
1478		1872
1479	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}>).
1480		1874
1481	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
1482	I<MUST> call C<leave_link> as soon as possible, though.	1876	I<MUST> call C<leave_link> as soon as possible, though.
1483		1877
		1878	Will never block.
		1879
1484	=item $player_object->leave_link ($map, $x, $y)	1880	=item $player_object->leave_link ($map, $x, $y)
1485		1881
1486	Moves the player out of the specila link map onto the given map. If the	1882	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	1883	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	1884	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	1885	fails, to the emergency map position.
1490		1886
1491	Might block.	1887	Might block.
1492		1888
1493	=cut	1889	=cut
		1890
		1891	sub link_map {
		1892	unless ($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	$LINK_MAP
		1899	}
1494		1900
1495	sub cf::object::player::enter_link {	1901	sub cf::object::player::enter_link {
1496	my ($self) = @_;	1902	my ($self) = @_;
1497		1903
1498	$self->deactivate_recursive;	1904	$self->deactivate_recursive;
1499		1905
1500	return if $self->map == $LINK_MAP;	1906	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		1907
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	1909	if $self->map && $self->map->{path} ne "{link}";
1504		1910
1505	$self->enter_map ($LINK_MAP, 20, 20);	1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	1912	}
1507		1913
1508	sub cf::object::player::leave_link {	1914	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	1915	my ($self, $map, $x, $y) = @_;
		1916
		1917	return unless $self->contr->active;
1510		1918
1511	my $link_pos = delete $self->{_link_pos};	1919	my $link_pos = delete $self->{_link_pos};
1512		1920
1513	unless ($map) {	1921	unless ($map) {
1514	# restore original map position	1922	# restore original map position
1515	($map, $x, $y) = @{ $link_pos || [] };	1923	($map, $x, $y) = @{ $link_pos || [] };
1516	$map = cf::map::find_map $map;	1924	$map = cf::map::find $map;
1517		1925
1518	unless ($map) {	1926	unless ($map) {
1519	($map, $x, $y) = @$EMERGENCY_POSITION;	1927	($map, $x, $y) = @$EMERGENCY_POSITION;
1520	$map = cf::map::find_map $map	1928	$map = cf::map::find $map
1521	or die "FATAL: cannot load emergency map\n";	1929	or die "FATAL: cannot load emergency map\n";
1522	}	1930	}
1523	}	1931	}
1524		1932
1525	($x, $y) = (-1, -1)	1933	($x, $y) = (-1, -1)
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	1936	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	1937	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	1938	if $x <=0 && $y <= 0;
1531		1939
1532	$map->load;	1940	$map->load;
		1941	$map->load_diag;
1533		1942
		1943	return unless $self->contr->active;
1534	$self->activate_recursive;	1944	$self->activate_recursive;
		1945
		1946	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	1947	$self->enter_map ($map, $x, $y);
1536	}	1948	}
1537		1949
1538	cf::player->attach (
1539	on_logout => sub {
1540	my ($pl) = @_;
1541
1542	# abort map switching before logout
1543	if ($pl->ob->{_link_pos}) {
1544	cf::sync_job {
1545	$pl->ob->leave_link
1546	};
1547	}
1548	},
1549	on_login => sub {
1550	my ($pl) = @_;
1551
1552	# try to abort aborted map switching on player login :)
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555	$pl->ob->enter_link;
1556	cf::async {
1557	# we need this sleep as the login has a concurrent enter_exit running
1558	# and this sleep increases chances of the player not ending up in scorn
1559	Coro::Timer::sleep 1;
1560	$pl->ob->leave_link;
1561	};
1562	}
1563	},
1564	);
1565
1566	=item $player_object->goto_map ($path, $x, $y)	1950	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1567		1951
1568	=cut	1952	Moves the player to the given map-path and coordinates by first freezing
		1953	her, loading and preparing them map, calling the provided $check callback
		1954	that has to return the map if sucecssful, and then unfreezes the player on
		1955	the new (success) or old (failed) map position.
1569		1956
		1957	=cut
		1958
		1959	our $GOTOGEN;
		1960
1570	sub cf::object::player::goto_map {	1961	sub cf::object::player::goto {
1571	my ($self, $path, $x, $y) = @_;	1962	my ($self, $path, $x, $y, $check) = @_;
		1963
		1964	# do generation counting so two concurrent goto's will be executed in-order
		1965	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1572		1966
1573	$self->enter_link;	1967	$self->enter_link;
1574		1968
1575	(cf::async {	1969	(async {
1576	$path = new cf::path $path;	1970	my $map = eval {
1577
1578	my $map = cf::map::find_map $path->as_string;	1971	my $map = cf::map::find $path;
		1972
		1973	if ($map) {
1579	$map = $map->customise_for ($self) if $map;	1974	$map = $map->customise_for ($self);
1580		1975	$map = $check->($map) if $check && $map;
1581	# warn "entering ", $map->path, " at ($x, $y)\n"	1976	} else {
1582	# if $map;
1583
1584	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1977	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1978	}
1585		1979
		1980	$map
		1981	};
		1982
		1983	if ($@) {
		1984	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1985	LOG llevError | logBacktrace, Carp::longmess $@;
		1986	}
		1987
		1988	if ($gen == $self->{_goto_generation}) {
		1989	delete $self->{_goto_generation};
1586	$self->leave_link ($map, $x, $y);	1990	$self->leave_link ($map, $x, $y);
		1991	}
1587	})->prio (1);	1992	})->prio (1);
1588	}	1993	}
1589		1994
1590	=item $player_object->enter_exit ($exit_object)	1995	=item $player_object->enter_exit ($exit_object)
1591		1996
…		…
1593		1998
1594	sub parse_random_map_params {	1999	sub parse_random_map_params {
1595	my ($spec) = @_;	2000	my ($spec) = @_;
1596		2001
1597	my $rmp = { # defaults	2002	my $rmp = { # defaults
1598	xsize => 10,	2003	xsize => (cf::rndm 15, 40),
1599	ysize => 10,	2004	ysize => (cf::rndm 15, 40),
		2005	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2006	#layout => string,
1600	};	2007	};
1601		2008
1602	for (split /\n/, $spec) {	2009	for (split /\n/, $spec) {
1603	my ($k, $v) = split /\s+/, $_, 2;	2010	my ($k, $v) = split /\s+/, $_, 2;
1604		2011
…		…
1608	$rmp	2015	$rmp
1609	}	2016	}
1610		2017
1611	sub prepare_random_map {	2018	sub prepare_random_map {
1612	my ($exit) = @_;	2019	my ($exit) = @_;
		2020
		2021	my $guard = cf::lock_acquire "exit_prepare:$exit";
1613		2022
1614	# all this does is basically replace the /! path by	2023	# all this does is basically replace the /! path by
1615	# a new random map path (?random/...) with a seed	2024	# a new random map path (?random/...) with a seed
1616	# that depends on the exit object	2025	# that depends on the exit object
1617		2026
1618	my $rmp = parse_random_map_params $exit->msg;	2027	my $rmp = parse_random_map_params $exit->msg;
1619		2028
1620	if ($exit->map) {	2029	if ($exit->map) {
1621	$rmp->{region} = $exit->map->region_name;	2030	$rmp->{region} = $exit->region->name;
1622	$rmp->{origin_map} = $exit->map->path;	2031	$rmp->{origin_map} = $exit->map->path;
1623	$rmp->{origin_x} = $exit->x;	2032	$rmp->{origin_x} = $exit->x;
1624	$rmp->{origin_y} = $exit->y;	2033	$rmp->{origin_y} = $exit->y;
1625	}	2034	}
1626		2035
1627	$rmp->{random_seed} ||= $exit->random_seed;	2036	$rmp->{random_seed} ||= $exit->random_seed;
1628		2037
1629	my $data = cf::to_json $rmp;	2038	my $data = cf::to_json $rmp;
1630	my $md5 = Digest::MD5::md5_hex $data;	2039	my $md5 = Digest::MD5::md5_hex $data;
		2040	my $meta = "$RANDOMDIR/$md5.meta";
1631		2041
1632	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2042	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1633	aio_write $fh, 0, (length $data), $data, 0;	2043	aio_write $fh, 0, (length $data), $data, 0;
		2044	undef $fh;
		2045	aio_rename "$meta~", $meta;
1634		2046
1635	$exit->slaying ("?random/$md5");	2047	$exit->slaying ("?random/$md5");
1636	$exit->msg (undef);	2048	$exit->msg (undef);
1637	}	2049	}
1638	}	2050	}
…		…
1640	sub cf::object::player::enter_exit {	2052	sub cf::object::player::enter_exit {
1641	my ($self, $exit) = @_;	2053	my ($self, $exit) = @_;
1642		2054
1643	return unless $self->type == cf::PLAYER;	2055	return unless $self->type == cf::PLAYER;
1644		2056
		2057	if ($exit->slaying eq "/!") {
		2058	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2059	# the problem is that $exit might not survive long enough
		2060	# so it needs to be done right now, right here
		2061	cf::sync_job { prepare_random_map $exit };
		2062	}
		2063
		2064	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2065	my $hp = $exit->stats->hp;
		2066	my $sp = $exit->stats->sp;
		2067
1645	$self->enter_link;	2068	$self->enter_link;
1646		2069
1647	(cf::async {	2070	(async {
		2071	$self->deactivate_recursive; # just to be sure
1648	unless (eval {	2072	unless (eval {
1649	prepare_random_map $exit	2073	$self->goto ($slaying, $hp, $sp);
1650	if $exit->slaying eq "/!";
1651
1652	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1653	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1654		2074
1655	1;	2075	1;
1656	}) {	2076	}) {
1657	$self->message ("Something went wrong deep within the crossfire server. "	2077	$self->message ("Something went wrong deep within the crossfire server. "
1658	. "I'll try to bring you back to the map you were before. "	2078	. "I'll try to bring you back to the map you were before. "
1659	. "Please report this to the dungeon master",	2079	. "Please report this to the dungeon master!",
1660	cf::NDI_UNIQUE | cf::NDI_RED);	2080	cf::NDI_UNIQUE | cf::NDI_RED);
1661		2081
1662	warn "ERROR in enter_exit: $@";	2082	warn "ERROR in enter_exit: $@";
1663	$self->leave_link;	2083	$self->leave_link;
1664	}	2084	}
1665	})->prio (1);	2085	})->prio (1);
…		…
1678		2098
1679	sub cf::client::send_drawinfo {	2099	sub cf::client::send_drawinfo {
1680	my ($self, $text, $flags) = @_;	2100	my ($self, $text, $flags) = @_;
1681		2101
1682	utf8::encode $text;	2102	utf8::encode $text;
1683	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2103	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1684	}	2104	}
1685		2105
		2106	=item $client->ext_event ($type, %msg)
		2107
		2108	Sends an exti event to the client.
		2109
		2110	=cut
		2111
		2112	sub cf::client::ext_event($$%) {
		2113	my ($self, $type, %msg) = @_;
		2114
		2115	$msg{msgtype} = "event_$type";
		2116	$self->send_packet ("ext " . cf::to_json \%msg);
		2117	}
1686		2118
1687	=item $success = $client->query ($flags, "text", \&cb)	2119	=item $success = $client->query ($flags, "text", \&cb)
1688		2120
1689	Queues a query to the client, calling the given callback with	2121	Queues a query to the client, calling the given callback with
1690	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2122	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1719	# get handled first	2151	# get handled first
1720	my $queue = delete $ns->{query_queue}	2152	my $queue = delete $ns->{query_queue}
1721	or return; # be conservative, not sure how that can happen, but we saw a crash here	2153	or return; # be conservative, not sure how that can happen, but we saw a crash here
1722		2154
1723	(shift @$queue)->[1]->($msg);	2155	(shift @$queue)->[1]->($msg);
		2156	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1724		2157
1725	push @{ $ns->{query_queue} }, @$queue;	2158	push @{ $ns->{query_queue} }, @$queue;
1726		2159
1727	if (@{ $ns->{query_queue} } == @$queue) {	2160	if (@{ $ns->{query_queue} } == @$queue) {
1728	if (@$queue) {	2161	if (@$queue) {
…		…
1732	}	2165	}
1733	}	2166	}
1734	},	2167	},
1735	);	2168	);
1736		2169
1737	=item $client->coro (\&cb)	2170	=item $client->async (\&cb)
1738		2171
1739	Create a new coroutine, running the specified callback. The coroutine will	2172	Create a new coroutine, running the specified callback. The coroutine will
1740	be automatically cancelled when the client gets destroyed (e.g. on logout,	2173	be automatically cancelled when the client gets destroyed (e.g. on logout,
1741	or loss of connection).	2174	or loss of connection).
1742		2175
1743	=cut	2176	=cut
1744		2177
1745	sub cf::client::coro {	2178	sub cf::client::async {
1746	my ($self, $cb) = @_;	2179	my ($self, $cb) = @_;
1747		2180
1748	my $coro = &cf::async ($cb);	2181	my $coro = &Coro::async ($cb);
1749		2182
1750	$coro->on_destroy (sub {	2183	$coro->on_destroy (sub {
1751	delete $self->{_coro}{$coro+0};	2184	delete $self->{_coro}{$coro+0};
1752	});	2185	});
1753		2186
…		…
1786		2219
1787	# here we export the classes and methods available to script code	2220	# here we export the classes and methods available to script code
1788		2221
1789	=pod	2222	=pod
1790		2223
1791	The following fucntions and emthods are available within a safe environment:	2224	The following functions and methods are available within a safe environment:
1792		2225
1793	cf::object contr pay_amount pay_player map	2226	cf::object contr pay_amount pay_player map
1794	cf::object::player player	2227	cf::object::player player
1795	cf::player peaceful	2228	cf::player peaceful
1796	cf::map trigger	2229	cf::map trigger
…		…
1881	#############################################################################	2314	#############################################################################
1882		2315
1883	=head2 EXTENSION DATABASE SUPPORT	2316	=head2 EXTENSION DATABASE SUPPORT
1884		2317
1885	Crossfire maintains a very simple database for extension use. It can	2318	Crossfire maintains a very simple database for extension use. It can
1886	currently store anything that can be serialised using Storable, which	2319	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1887	excludes objects.	2320	convert to/from binary).
1888		2321
1889	The parameter C<$family> should best start with the name of the extension	2322	The parameter C<$family> should best start with the name of the extension
1890	using it, it should be unique.	2323	using it, it should be unique.
1891		2324
1892	=over 4	2325	=over 4
1893		2326
1894	=item $hashref = cf::db_get $family
1895
1896	Return a hashref for use by the extension C<$family>, which can be
1897	modified. After modifications, you have to call C<cf::db_dirty> or
1898	C<cf::db_sync>.
1899
1900	=item $value = cf::db_get $family => $key	2327	=item $value = cf::db_get $family => $key
1901		2328
1902	Returns a single value from the database	2329	Returns a single value from the database.
1903
1904	=item cf::db_put $family => $hashref
1905
1906	Stores the given family hashref into the database. Updates are delayed, if
1907	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1908		2330
1909	=item cf::db_put $family => $key => $value	2331	=item cf::db_put $family => $key => $value
1910		2332
1911	Stores the given C<$value> in the family hash. Updates are delayed, if you	2333	Stores the given C<$value> in the family.
1912	want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_dirty
1915
1916	Marks the database as dirty, to be updated at a later time.
1917
1918	=item cf::db_sync
1919
1920	Immediately write the database to disk I<if it is dirty>.
1921		2334
1922	=cut	2335	=cut
1923		2336
1924	our $DB;	2337	our $DB;
1925		2338
1926	{	2339	sub db_init {
1927	my $path = cf::localdir . "/database.pst";	2340	unless ($DB) {
		2341	$DB = BDB::db_create $DB_ENV;
1928		2342
1929	sub db_load() {	2343	cf::sync_job {
1930	$DB = stat $path ? Storable::retrieve $path : { };	2344	eval {
1931	}	2345	$DB->set_flags (BDB::CHKSUM);
1932		2346
1933	my $pid;	2347	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1934		2348	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1935	sub db_save() {	2349	cf::cleanup "db_open(db): $!" if $!;
1936	waitpid $pid, 0 if $pid;	2350	};
1937	if (0 == ($pid = fork)) {	2351	cf::cleanup "db_open(db): $@" if $@;
1938	$DB->{_meta}{version} = 1;
1939	Storable::nstore $DB, "$path~";
1940	rename "$path~", $path;
1941	cf::_exit 0 if defined $pid;
1942	}	2352	};
1943	}
1944
1945	my $dirty;
1946
1947	sub db_sync() {
1948	db_save if $dirty;
1949	undef $dirty;
1950	}
1951
1952	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1953	db_sync;
1954	});	2353	}
		2354	}
1955		2355
1956	sub db_dirty() {
1957	$dirty = 1;
1958	$idle->start;
1959	}
1960
1961	sub db_get($;$) {	2356	sub db_get($$) {
1962	@_ >= 2	2357	my $key = "$_[0]/$_[1]";
1963	? $DB->{$_[0]}{$_[1]}
1964	: ($DB->{$_[0]} ||= { })
1965	}
1966		2358
		2359	cf::sync_job {
		2360	BDB::db_get $DB, undef, $key, my $data;
		2361
		2362	$! ? ()
		2363	: $data
		2364	}
		2365	}
		2366
1967	sub db_put($$;$) {	2367	sub db_put($$$) {
1968	if (@_ >= 3) {	2368	BDB::dbreq_pri 4;
1969	$DB->{$_[0]}{$_[1]} = $_[2];	2369	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1970	} else {	2370	}
1971	$DB->{$_[0]} = $_[1];
1972	}
1973	db_dirty;
1974	}
1975		2371
1976	cf::global->attach (	2372	=item cf::cache $id => [$paths...], $processversion => $process
1977	prio => 10000,	2373
1978	on_cleanup => sub {	2374	Generic caching function that returns the value of the resource $id,
1979	db_sync;	2375	caching and regenerating as required.
		2376
		2377	This function can block.
		2378
		2379	=cut
		2380
		2381	sub cache {
		2382	my ($id, $src, $processversion, $process) = @_;
		2383
		2384	my $meta =
		2385	join "\x00",
		2386	$processversion,
		2387	map {
		2388	aio_stat $_
		2389	and Carp::croak "$_: $!";
		2390
		2391	($_, (stat _)[7,9])
		2392	} @$src;
		2393
		2394	my $dbmeta = db_get cache => "$id/meta";
		2395	if ($dbmeta ne $meta) {
		2396	# changed, we may need to process
		2397
		2398	my @data;
		2399	my $md5;
		2400
		2401	for (0 .. $#$src) {
		2402	0 <= aio_load $src->[$_], $data[$_]
		2403	or Carp::croak "$src->[$_]: $!";
1980	},	2404	}
1981	);	2405
		2406	# if processing is expensive, check
		2407	# checksum first
		2408	if (1) {
		2409	$md5 =
		2410	join "\x00",
		2411	$processversion,
		2412	map {
		2413	Coro::cede;
		2414	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2415	} 0.. $#$src;
		2416
		2417
		2418	my $dbmd5 = db_get cache => "$id/md5";
		2419	if ($dbmd5 eq $md5) {
		2420	db_put cache => "$id/meta", $meta;
		2421
		2422	return db_get cache => "$id/data";
		2423	}
		2424	}
		2425
		2426	my $t1 = Time::HiRes::time;
		2427	my $data = $process->(\@data);
		2428	my $t2 = Time::HiRes::time;
		2429
		2430	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2431
		2432	db_put cache => "$id/data", $data;
		2433	db_put cache => "$id/md5" , $md5;
		2434	db_put cache => "$id/meta", $meta;
		2435
		2436	return $data;
		2437	}
		2438
		2439	db_get cache => "$id/data"
1982	}	2440	}
		2441
		2442	=item fork_call { }, $args
		2443
		2444	Executes the given code block with the given arguments in a seperate
		2445	process, returning the results. Everything must be serialisable with
		2446	Coro::Storable. May, of course, block. Note that the executed sub may
		2447	never block itself or use any form of Event handling.
		2448
		2449	=cut
		2450
		2451	sub fork_call(&@) {
		2452	my ($cb, @args) = @_;
		2453
		2454	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2455	# or die "socketpair: $!";
		2456	pipe my $fh1, my $fh2
		2457	or die "pipe: $!";
		2458
		2459	if (my $pid = fork) {
		2460	close $fh2;
		2461
		2462	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2463	$res = Coro::Storable::thaw $res;
		2464
		2465	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2466
		2467	die $$res unless "ARRAY" eq ref $res;
		2468
		2469	return wantarray ? @$res : $res->[-1];
		2470	} else {
		2471	reset_signals;
		2472	local $SIG{__WARN__};
		2473	local $SIG{__DIE__};
		2474	eval {
		2475	close $fh1;
		2476
		2477	my @res = eval { $cb->(@args) };
		2478	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2479	};
		2480
		2481	warn $@ if $@;
		2482	_exit 0;
		2483	}
		2484	}
		2485
		2486
1983		2487
1984	#############################################################################	2488	#############################################################################
1985	# the server's main()	2489	# the server's init and main functions
		2490
		2491	sub load_facedata($) {
		2492	my ($path) = @_;
		2493
		2494	warn "loading facedata from $path\n";
		2495
		2496	my $facedata;
		2497	0 < aio_load $path, $facedata
		2498	or die "$path: $!";
		2499
		2500	$facedata = Coro::Storable::thaw $facedata;
		2501
		2502	$facedata->{version} == 2
		2503	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2504
		2505	{
		2506	my $faces = $facedata->{faceinfo};
		2507
		2508	while (my ($face, $info) = each %$faces) {
		2509	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2510	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2511	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2512	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2513	Coro::cede;
		2514	}
		2515
		2516	while (my ($face, $info) = each %$faces) {
		2517	next unless $info->{smooth};
		2518	my $idx = cf::face::find $face
		2519	or next;
		2520	if (my $smooth = cf::face::find $info->{smooth}) {
		2521	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2522	} else {
		2523	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2524	}
		2525	Coro::cede;
		2526	}
		2527	}
		2528
		2529	{
		2530	my $anims = $facedata->{animinfo};
		2531
		2532	while (my ($anim, $info) = each %$anims) {
		2533	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2534	Coro::cede;
		2535	}
		2536
		2537	cf::anim::invalidate_all; # d'oh
		2538	}
		2539
		2540	1
		2541	}
		2542
		2543	sub reload_regions {
		2544	load_resource_file "$MAPDIR/regions"
		2545	or die "unable to load regions file\n";
		2546	}
		2547
		2548	sub reload_facedata {
		2549	load_facedata "$DATADIR/facedata"
		2550	or die "unable to load facedata\n";
		2551	}
		2552
		2553	sub reload_archetypes {
		2554	load_resource_file "$DATADIR/archetypes"
		2555	or die "unable to load archetypes\n";
		2556	}
		2557
		2558	sub reload_treasures {
		2559	load_resource_file "$DATADIR/treasures"
		2560	or die "unable to load treasurelists\n";
		2561	}
		2562
		2563	sub reload_resources {
		2564	warn "reloading resource files...\n";
		2565
		2566	reload_regions;
		2567	reload_facedata;
		2568	reload_archetypes;
		2569	reload_treasures;
		2570
		2571	warn "finished reloading resource files\n";
		2572	}
		2573
		2574	sub init {
		2575	reload_resources;
		2576	}
1986		2577
1987	sub cfg_load {	2578	sub cfg_load {
1988	open my $fh, "<:utf8", cf::confdir . "/config"	2579	open my $fh, "<:utf8", "$CONFDIR/config"
1989	or return;	2580	or return;
1990		2581
1991	local $/;	2582	local $/;
1992	*CFG = YAML::Syck::Load <$fh>;	2583	*CFG = YAML::Syck::Load <$fh>;
		2584
		2585	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2586
		2587	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2588	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2589
		2590	if (exists $CFG{mlockall}) {
		2591	eval {
		2592	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2593	and die "WARNING: m(un)lockall failed: $!\n";
		2594	};
		2595	warn $@ if $@;
		2596	}
1993	}	2597	}
1994		2598
1995	sub main {	2599	sub main {
1996	# we must not ever block the main coroutine	2600	# we must not ever block the main coroutine
1997	local $Coro::idle = sub {	2601	local $Coro::idle = sub {
1998	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2602	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1999	(Coro::unblock_sub {	2603	(async {
2000	Event::one_event;	2604	Event::one_event;
2001	})->();	2605	})->prio (Coro::PRIO_MAX);
2002	};	2606	};
2003		2607
2004	cfg_load;	2608	cfg_load;
2005	db_load;	2609	db_init;
2006	load_extensions;	2610	load_extensions;
		2611
		2612	$TICK_WATCHER->start;
2007	Event::loop;	2613	Event::loop;
2008	}	2614	}
2009		2615
2010	#############################################################################	2616	#############################################################################
2011	# initialisation	2617	# initialisation and cleanup
2012		2618
		2619	# install some emergency cleanup handlers
		2620	BEGIN {
		2621	for my $signal (qw(INT HUP TERM)) {
		2622	Event->signal (
		2623	reentrant => 0,
		2624	data => WF_AUTOCANCEL,
		2625	signal => $signal,
		2626	prio => 0,
		2627	cb => sub {
		2628	cf::cleanup "SIG$signal";
		2629	},
		2630	);
		2631	}
		2632	}
		2633
		2634	sub emergency_save() {
		2635	my $freeze_guard = cf::freeze_mainloop;
		2636
		2637	warn "enter emergency perl save\n";
		2638
		2639	cf::sync_job {
		2640	# use a peculiar iteration method to avoid tripping on perl
		2641	# refcount bugs in for. also avoids problems with players
		2642	# and maps saved/destroyed asynchronously.
		2643	warn "begin emergency player save\n";
		2644	for my $login (keys %cf::PLAYER) {
		2645	my $pl = $cf::PLAYER{$login} or next;
		2646	$pl->valid or next;
		2647	$pl->save;
		2648	}
		2649	warn "end emergency player save\n";
		2650
		2651	warn "begin emergency map save\n";
		2652	for my $path (keys %cf::MAP) {
		2653	my $map = $cf::MAP{$path} or next;
		2654	$map->valid or next;
		2655	$map->save;
		2656	}
		2657	warn "end emergency map save\n";
		2658
		2659	warn "begin emergency database checkpoint\n";
		2660	BDB::db_env_txn_checkpoint $DB_ENV;
		2661	warn "end emergency database checkpoint\n";
		2662	};
		2663
		2664	warn "leave emergency perl save\n";
		2665	}
		2666
		2667	sub post_cleanup {
		2668	my ($make_core) = @_;
		2669
		2670	warn Carp::longmess "post_cleanup backtrace"
		2671	if $make_core;
		2672	}
		2673
2013	sub reload() {	2674	sub do_reload_perl() {
2014	# can/must only be called in main	2675	# can/must only be called in main
2015	if ($Coro::current != $Coro::main) {	2676	if ($Coro::current != $Coro::main) {
2016	warn "can only reload from main coroutine\n";	2677	warn "can only reload from main coroutine";
2017	return;	2678	return;
2018	}	2679	}
2019		2680
2020	warn "reloading...";	2681	warn "reloading...";
2021		2682
2022	local $FREEZE = 1;	2683	warn "entering sync_job";
		2684
		2685	cf::sync_job {
		2686	cf::write_runtime; # external watchdog should not bark
2023	cf::emergency_save;	2687	cf::emergency_save;
		2688	cf::write_runtime; # external watchdog should not bark
2024		2689
2025	eval {	2690	warn "syncing database to disk";
		2691	BDB::db_env_txn_checkpoint $DB_ENV;
		2692
2026	# if anything goes wrong in here, we should simply crash as we already saved	2693	# if anything goes wrong in here, we should simply crash as we already saved
2027		2694
2028	# cancel all watchers	2695	warn "cancelling all WF_AUTOCANCEL watchers";
2029	for (Event::all_watchers) {	2696	for (Event::all_watchers) {
2030	$_->cancel if $_->data & WF_AUTOCANCEL;	2697	$_->cancel if $_->data & WF_AUTOCANCEL;
2031	}	2698	}
2032		2699
		2700	warn "flushing outstanding aio requests";
		2701	for (;;) {
		2702	BDB::flush;
		2703	IO::AIO::flush;
		2704	Coro::cede;
		2705	last unless IO::AIO::nreqs || BDB::nreqs;
		2706	warn "iterate...";
		2707	}
		2708
		2709	++$RELOAD;
		2710
2033	# cancel all extension coros	2711	warn "cancelling all extension coros";
2034	$_->cancel for values %EXT_CORO;	2712	$_->cancel for values %EXT_CORO;
2035	%EXT_CORO = ();	2713	%EXT_CORO = ();
2036		2714
2037	# unload all extensions	2715	warn "removing commands";
2038	for (@exts) {	2716	%COMMAND = ();
		2717
		2718	warn "removing ext commands";
		2719	%EXTCMD = ();
		2720
		2721	warn "unloading/nuking all extensions";
		2722	for my $pkg (@EXTS) {
2039	warn "unloading <$_>";	2723	warn "... unloading $pkg";
2040	unload_extension $_;	2724
		2725	if (my $cb = $pkg->can ("unload")) {
		2726	eval {
		2727	$cb->($pkg);
		2728	1
		2729	} or warn "$pkg unloaded, but with errors: $@";
2041	}	2730	}
2042		2731
		2732	warn "... nuking $pkg";
		2733	Symbol::delete_package $pkg;
		2734	}
		2735
2043	# unload all modules loaded from $LIBDIR	2736	warn "unloading all perl modules loaded from $LIBDIR";
2044	while (my ($k, $v) = each %INC) {	2737	while (my ($k, $v) = each %INC) {
2045	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2738	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2046		2739
2047	warn "removing <$k>";	2740	warn "... unloading $k";
2048	delete $INC{$k};	2741	delete $INC{$k};
2049		2742
2050	$k =~ s/\.pm$//;	2743	$k =~ s/\.pm$//;
2051	$k =~ s/\//::/g;	2744	$k =~ s/\//::/g;
2052		2745
…		…
2055	}	2748	}
2056		2749
2057	Symbol::delete_package $k;	2750	Symbol::delete_package $k;
2058	}	2751	}
2059		2752
2060	# sync database to disk
2061	cf::db_sync;
2062	IO::AIO::flush;
2063
2064	# get rid of safe::, as good as possible	2753	warn "getting rid of safe::, as good as possible";
2065	Symbol::delete_package "safe::$_"	2754	Symbol::delete_package "safe::$_"
2066	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2755	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2067		2756
2068	# remove register_script_function callbacks
2069	# TODO
2070
2071	# unload cf.pm "a bit"	2757	warn "unloading cf.pm \"a bit\"";
2072	delete $INC{"cf.pm"};	2758	delete $INC{"cf.pm"};
		2759	delete $INC{"cf/pod.pm"};
2073		2760
2074	# don't, removes xs symbols, too,	2761	# don't, removes xs symbols, too,
2075	# and global variables created in xs	2762	# and global variables created in xs
2076	#Symbol::delete_package __PACKAGE__;	2763	#Symbol::delete_package __PACKAGE__;
2077		2764
2078	# reload cf.pm	2765	warn "unload completed, starting to reload now";
		2766
2079	warn "reloading cf.pm";	2767	warn "reloading cf.pm";
2080	require cf;	2768	require cf;
2081	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2769	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2082		2770
2083	# load config and database again	2771	warn "loading config and database again";
2084	cf::cfg_load;	2772	cf::cfg_load;
2085	cf::db_load;
2086		2773
2087	# load extensions
2088	warn "load extensions";	2774	warn "loading extensions";
2089	cf::load_extensions;	2775	cf::load_extensions;
2090		2776
2091	# reattach attachments to objects	2777	warn "reattaching attachments to objects/players";
2092	warn "reattach";	2778	_global_reattach; # objects, sockets
2093	_global_reattach;	2779	warn "reattaching attachments to maps";
2094	};	2780	reattach $_ for values %MAP;
		2781	warn "reattaching attachments to players";
		2782	reattach $_ for values %PLAYER;
2095		2783
2096	if ($@) {	2784	warn "leaving sync_job";
		2785
		2786	1
		2787	} or do {
2097	warn $@;	2788	warn $@;
2098	warn "error while reloading, exiting.";	2789	warn "error while reloading, exiting.";
2099	exit 1;	2790	exit 1;
2100	}	2791	};
2101		2792
2102	warn "reloaded successfully";	2793	warn "reloaded";
2103	};	2794	};
2104		2795
2105	#############################################################################	2796	our $RELOAD_WATCHER; # used only during reload
2106		2797
2107	unless ($LINK_MAP) {	2798	sub reload_perl() {
2108	$LINK_MAP = cf::map::new;	2799	# doing reload synchronously and two reloads happen back-to-back,
		2800	# coro crashes during coro_state_free->destroy here.
2109		2801
2110	$LINK_MAP->width (41);	2802	$RELOAD_WATCHER ||= Event->timer (
2111	$LINK_MAP->height (41);	2803	reentrant => 0,
2112	$LINK_MAP->alloc;
2113	$LINK_MAP->path ("{link}");
2114	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2115	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2116
2117	# dirty hack because... archetypes are not yet loaded
2118	Event->timer (
2119	after => 2,	2804	after => 0,
		2805	data => WF_AUTOCANCEL,
2120	cb => sub {	2806	cb => sub {
2121	$_[0]->w->cancel;	2807	do_reload_perl;
2122		2808	undef $RELOAD_WATCHER;
2123	# provide some exits "home"
2124	my $exit = cf::object::new "exit";
2125
2126	$exit->slaying ($EMERGENCY_POSITION->[0]);
2127	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2128	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2129
2130	$LINK_MAP->insert ($exit->clone, 19, 19);
2131	$LINK_MAP->insert ($exit->clone, 19, 20);
2132	$LINK_MAP->insert ($exit->clone, 19, 21);
2133	$LINK_MAP->insert ($exit->clone, 20, 19);
2134	$LINK_MAP->insert ($exit->clone, 20, 21);
2135	$LINK_MAP->insert ($exit->clone, 21, 19);
2136	$LINK_MAP->insert ($exit->clone, 21, 20);
2137	$LINK_MAP->insert ($exit->clone, 21, 21);
2138
2139	$exit->destroy;
2140	});	2809	},
2141		2810	);
2142	$LINK_MAP->{deny_save} = 1;
2143	$LINK_MAP->{deny_reset} = 1;
2144
2145	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2146	}	2811	}
2147
2148	register "<global>", __PACKAGE__;
2149		2812
2150	register_command "reload" => sub {	2813	register_command "reload" => sub {
2151	my ($who, $arg) = @_;	2814	my ($who, $arg) = @_;
2152		2815
2153	if ($who->flag (FLAG_WIZ)) {	2816	if ($who->flag (FLAG_WIZ)) {
2154	$who->message ("start of reload.");
2155	reload;
2156	$who->message ("end of reload.");	2817	$who->message ("reloading server.");
		2818	async { reload_perl };
2157	}	2819	}
2158	};	2820	};
2159		2821
2160	unshift @INC, $LIBDIR;	2822	unshift @INC, $LIBDIR;
2161		2823
		2824	my $bug_warning = 0;
		2825
		2826	our @WAIT_FOR_TICK;
		2827	our @WAIT_FOR_TICK_BEGIN;
		2828
		2829	sub wait_for_tick {
		2830	return unless $TICK_WATCHER->is_active;
		2831	return if $Coro::current == $Coro::main;
		2832
		2833	my $signal = new Coro::Signal;
		2834	push @WAIT_FOR_TICK, $signal;
		2835	$signal->wait;
		2836	}
		2837
		2838	sub wait_for_tick_begin {
		2839	return unless $TICK_WATCHER->is_active;
		2840	return if $Coro::current == $Coro::main;
		2841
		2842	my $signal = new Coro::Signal;
		2843	push @WAIT_FOR_TICK_BEGIN, $signal;
		2844	$signal->wait;
		2845	}
		2846
		2847	my $min = 1e6;#d#
		2848	my $avg = 10;
2162	$TICK_WATCHER = Event->timer (	2849	$TICK_WATCHER = Event->timer (
2163	reentrant => 0,	2850	reentrant => 0,
		2851	parked => 1,
2164	prio => 0,	2852	prio => 0,
2165	at => $NEXT_TICK || $TICK,	2853	at => $NEXT_TICK || $TICK,
2166	data => WF_AUTOCANCEL,	2854	data => WF_AUTOCANCEL,
2167	cb => sub {	2855	cb => sub {
2168	unless ($FREEZE) {	2856	if ($Coro::current != $Coro::main) {
		2857	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2858	unless ++$bug_warning > 10;
		2859	return;
		2860	}
		2861
		2862	$NOW = $tick_start = Event::time;
		2863
2169	cf::server_tick; # one server iteration	2864	cf::server_tick; # one server iteration
2170	$RUNTIME += $TICK;	2865
		2866	0 && sync_job {#d#
		2867	for(1..10) {
		2868	my $t = Event::time;
		2869	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2870	or die;
		2871
		2872	$map->width (50);
		2873	$map->height (50);
		2874	$map->alloc;
		2875	$map->_load_objects ("/tmp/x.map", 1);
		2876	my $t = Event::time - $t;
		2877
		2878	#next unless $t < 0.0013;#d#
		2879	if ($t < $min) {
		2880	$min = $t;
		2881	}
		2882	$avg = $avg * 0.99 + $t * 0.01;
		2883	}
		2884	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2885	exit 0;
		2886	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2171	}	2887	};
2172		2888
		2889	$RUNTIME += $TICK;
2173	$NEXT_TICK += $TICK;	2890	$NEXT_TICK += $TICK;
2174		2891
		2892	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2893	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2894	Coro::async_pool {
		2895	write_runtime
		2896	or warn "ERROR: unable to write runtime file: $!";
		2897	};
		2898	}
		2899
		2900	# my $AFTER = Event::time;
		2901	# warn $AFTER - $NOW;#d#
		2902
		2903	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2904	$sig->send;
		2905	}
		2906	while (my $sig = shift @WAIT_FOR_TICK) {
		2907	$sig->send;
		2908	}
		2909
		2910	$NOW = Event::time;
		2911
2175	# if we are delayed by four ticks or more, skip them all	2912	# if we are delayed by four ticks or more, skip them all
2176	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2913	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2177		2914
2178	$TICK_WATCHER->at ($NEXT_TICK);	2915	$TICK_WATCHER->at ($NEXT_TICK);
2179	$TICK_WATCHER->start;	2916	$TICK_WATCHER->start;
		2917
		2918	$LOAD = ($NOW - $tick_start) / $TICK;
		2919	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2920
		2921	_post_tick;
		2922
		2923
2180	},	2924	},
2181	);	2925	);
2182		2926
		2927	{
2183	IO::AIO::max_poll_time $TICK * 0.2;	2928	BDB::max_poll_time $TICK * 0.1;
2184		2929	$BDB_POLL_WATCHER = Event->io (
2185	Event->io (	2930	reentrant => 0,
2186	fd => IO::AIO::poll_fileno,	2931	fd => BDB::poll_fileno,
2187	poll => 'r',	2932	poll => 'r',
2188	prio => 5,	2933	prio => 0,
2189	data => WF_AUTOCANCEL,
2190	cb => \&IO::AIO::poll_cb,
2191	);
2192
2193	Event->timer (
2194	data => WF_AUTOCANCEL,	2934	data => WF_AUTOCANCEL,
2195	after => 0,	2935	cb => \&BDB::poll_cb,
2196	interval => 10,	2936	);
2197	cb => sub {	2937	BDB::min_parallel 8;
2198	(Coro::unblock_sub {	2938
2199	write_runtime	2939	BDB::set_sync_prepare {
2200	or warn "ERROR: unable to write runtime file: $!";	2940	my $status;
		2941	my $current = $Coro::current;
		2942	(
		2943	sub {
		2944	$status = $!;
		2945	$current->ready; undef $current;
		2946	},
		2947	sub {
		2948	Coro::schedule while defined $current;
		2949	$! = $status;
		2950	},
		2951	)
		2952	};
		2953
		2954	unless ($DB_ENV) {
		2955	$DB_ENV = BDB::db_env_create;
		2956
		2957	cf::sync_job {
		2958	eval {
		2959	BDB::db_env_open
		2960	$DB_ENV,
		2961	$BDBDIR,
		2962	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2963	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2964	0666;
		2965
		2966	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2967
		2968	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2969	$DB_ENV->set_lk_detect;
		2970	};
		2971
		2972	cf::cleanup "db_env_open(db): $@" if $@;
2201	})->();	2973	};
2202	},	2974	}
2203	);	2975	}
		2976
		2977	{
		2978	IO::AIO::min_parallel 8;
		2979
		2980	undef $Coro::AIO::WATCHER;
		2981	IO::AIO::max_poll_time $TICK * 0.1;
		2982	$AIO_POLL_WATCHER = Event->io (
		2983	reentrant => 0,
		2984	data => WF_AUTOCANCEL,
		2985	fd => IO::AIO::poll_fileno,
		2986	poll => 'r',
		2987	prio => 6,
		2988	cb => \&IO::AIO::poll_cb,
		2989	);
		2990	}
		2991
		2992	my $_log_backtrace;
		2993
		2994	sub _log_backtrace {
		2995	my ($msg, @addr) = @_;
		2996
		2997	$msg =~ s/\n//;
		2998
		2999	# limit the # of concurrent backtraces
		3000	if ($_log_backtrace < 2) {
		3001	++$_log_backtrace;
		3002	async {
		3003	my @bt = fork_call {
		3004	@addr = map { sprintf "%x", $_ } @addr;
		3005	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3006	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3007	or die "addr2line: $!";
		3008
		3009	my @funcs;
		3010	my @res = <$fh>;
		3011	chomp for @res;
		3012	while (@res) {
		3013	my ($func, $line) = splice @res, 0, 2, ();
		3014	push @funcs, "[$func] $line";
		3015	}
		3016
		3017	@funcs
		3018	};
		3019
		3020	LOG llevInfo, "[ABT] $msg\n";
		3021	LOG llevInfo, "[ABT] $_\n" for @bt;
		3022	--$_log_backtrace;
		3023	};
		3024	} else {
		3025	LOG llevInfo, "[ABT] $msg\n";
		3026	LOG llevInfo, "[ABT] [suppressed]\n";
		3027	}
		3028	}
		3029
		3030	# load additional modules
		3031	use cf::pod;
2204		3032
2205	END { cf::emergency_save }	3033	END { cf::emergency_save }
2206		3034
2207	1	3035	1
2208		3036

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