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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 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 $RANDOM_MAPS = cf::localdir . "/random";	91
55	our %EXT_CORO;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		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 $tick_start; # for load detecting purposes
56		98
57	binmode STDOUT;	99	binmode STDOUT;
58	binmode STDERR;	100	binmode STDERR;
59		101
60	# read virtual server time, if available	102	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
65	}	107	}
66		108
67	mkdir cf::localdir;	109	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		111
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
76		115
77	#############################################################################	116	#############################################################################
78		117
79	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
80		119
…		…
87	=item $cf::RUNTIME	126	=item $cf::RUNTIME
88		127
89	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
90	every server tick.	129	every server tick.
91		130
92	=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
93		134
94	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		139
97	=item $cf::NOW	140	=item $cf::NOW
98		141
99	The time of the last (current) server tick.	142	The time of the last (current) server tick.
100		143
101	=item $cf::TICK	144	=item $cf::TICK
102		145
103	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.
104		157
105	=item %cf::CFG	158	=item %cf::CFG
106		159
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		168
110	=back	169	=back
111		170
112	=cut	171	=cut
113		172
114	BEGIN {	173	BEGIN {
115	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	175	my $msg = join "", @_;
117	utf8::encode $msg;
118		176
119	$msg .= "\n"	177	$msg .= "\n"
120	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
121		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
123	};	184	};
124	}	185	}
125		186
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		206
146	$Event::DIED = sub {	207	$Event::DIED = sub {
147	warn "error in event callback: @_";	208	warn "error in event callback: @_";
148	};	209	};
149		210
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
155		212
156	=over 4	213	=over 4
157		214
158	=cut	215	=item dumpval $ref
159		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
160	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
161		239
162	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
163		241
164	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
165		243
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
174		245
175	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
176
177	=cut
178
179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		247
184	=item cf::lock_wait $string	248	=item cf::lock_wait $string
185		249
186	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
187		251
…		…
193	returned.	257	returned.
194		258
195	Lock names should begin with a unique identifier (for example, cf::map::find	259	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
197		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
198	=cut	266	=cut
199		267
200	our %LOCK;	268	our %LOCK;
201		269
202	sub lock_wait($) {	270	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
223	}	291	}
224	}	292	}
225		293
226	=item cf::async { BLOCK }	294	sub lock_active($) {
227
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229	error instead of exiting the server in case of a problem.
230
231	=cut
232
233	sub async(&) {
234	my ($cb) = @_;	295	my ($key) = @_;
235		296
236	Coro::async {	297	! ! $LOCK{$key}
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}	298	}
241		299
242	sub freeze_mainloop {	300	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
244		302
245	my $guard = Coro::guard { $TICK_WATCHER->start };	303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
246	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
247	$guard	307	$guard
248	}	308	}
		309
		310	=item cf::async { BLOCK }
		311
		312	Currently the same as Coro::async_pool, meaning you cannot use
		313	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		314	thing you are allowed to do is call C<prio> on it.
		315
		316	=cut
		317
		318	BEGIN { *async = \&Coro::async_pool }
249		319
250	=item cf::sync_job { BLOCK }	320	=item cf::sync_job { BLOCK }
251		321
252	The design of crossfire+ requires that the main coro ($Coro::main) is	322	The design of crossfire+ requires that the main coro ($Coro::main) is
253	always able to handle events or runnable, as crossfire+ is only partly	323	always able to handle events or runnable, as crossfire+ is only partly
…		…
262		332
263	sub sync_job(&) {	333	sub sync_job(&) {
264	my ($job) = @_;	334	my ($job) = @_;
265		335
266	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
267	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
269		341
270	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	343	# (but this is cancel-safe)
272	my $freeze_guard = freeze_mainloop;	344	my $freeze_guard = freeze_mainloop;
273		345
274	my $busy = 1;	346	my $busy = 1;
275	my @res;	347	my @res;
276		348
277	(Coro::async {	349	(async {
278	@res = eval { $job->() };	350	@res = eval { $job->() };
279	warn $@ if $@;	351	warn $@ if $@;
280	undef $busy;	352	undef $busy;
281	})->prio (Coro::PRIO_MAX);	353	})->prio (Coro::PRIO_MAX);
282		354
283	while ($busy) {	355	while ($busy) {
284	Coro::cede_notself;	356	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	357	}
		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
287		365
288	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
289	} else {	367	} else {
290	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
291		369
292	$job->()	370	$job->()
293	}	371	}
294	}	372	}
295		373
296	=item $coro = cf::coro { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
297		375
298	Creates and returns a new coro. This coro is automcatially being canceled	376	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	377	extension calling this is being unloaded.
300		378
301	=cut	379	=cut
302		380
303	sub coro(&) {	381	sub async_ext(&) {
304	my $cb = shift;	382	my $cb = shift;
305		383
306	my $coro = &cf::async ($cb);	384	my $coro = &Coro::async ($cb);
307		385
308	$coro->on_destroy (sub {	386	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	387	delete $EXT_CORO{$coro+0};
310	});	388	});
311	$EXT_CORO{$coro+0} = $coro;	389	$EXT_CORO{$coro+0} = $coro;
312		390
313	$coro	391	$coro
314	}	392	}
315		393
316	sub write_runtime {	394	sub write_runtime {
317	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";
318		405
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
320	or return;	407	or return;
321		408
		409	my $value = $cf::RUNTIME + 90 + 10;
322	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
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;	414	and return;
325		415
		416	# always fsync - this file is important
326	aio_fsync $fh	417	aio_fsync $fh
327	and return;	418	and return;
328		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
329	close $fh	423	close $fh
330	or return;	424	or return;
331		425
332	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
333	and return;	427	and return;
334		428
		429	warn "runtime file written.\n";#d#
		430
335	1	431	1
336	}	432	}
337		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
338	=back	445	=back
339		446
340	=cut	447	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		448
462	#############################################################################	449	#############################################################################
463		450
464	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
465		452
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	579	our @CB_MAP = ();
593		580
594	my %attachment;	581	my %attachment;
595		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
596	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
598		591
599	use sort 'stable';	592	use sort 'stable';
600		593
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	627	$registry = $CB_TYPE[$object_type] ||= [];
635		628
636	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		633
641	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	635	my $pkg = shift @arg;
643		636
644	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
685	if (ref $_[0]) {	678	if (ref $_[0]) {
686	_object_attach @_;	679	_object_attach @_;
687	} else {	680	} else {
688	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
689	}	682	}
		683	_recalc_want;
690	};	684	};
691		685
692	# all those should be optimised	686	# all those should be optimised
693	sub cf::attachable::detach {	687	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
698	reattach ($obj);	692	reattach ($obj);
699	} else {	693	} else {
700	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
701	}	695	}
		696	_recalc_want;
702	};	697	};
703		698
704	sub cf::attachable::attached {	699	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
706		701
…		…
771	# object support	766	# object support
772		767
773	sub reattach {	768	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	769	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	770	my ($obj) = @_;
		771
		772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		773
777	my $registry = $obj->registry;	774	my $registry = $obj->registry;
778		775
779	@$registry = ();	776	@$registry = ();
780		777
…		…
827	$filename, length $$rdata, scalar @$objs;	824	$filename, length $$rdata, scalar @$objs;
828		825
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	827	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	829	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	830	close $fh;
834		831
835	if (@$objs) {	832	if (@$objs) {
836	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) {
837	chmod SAVE_MODE, $fh;	834	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	835	my $data = Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	836	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	837	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	838	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	839	aio_rename "$filename.pst~", "$filename.pst";
843	}	840	}
844	} else {	841	} else {
845	aio_unlink "$filename.pst";	842	aio_unlink "$filename.pst";
…		…
912	=cut	909	=cut
913		910
914	sub register_extcmd {	911	sub register_extcmd {
915	my ($name, $cb) = @_;	912	my ($name, $cb) = @_;
916		913
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	914	$EXTCMD{$name} = $cb;
921	}	915	}
922		916
923	cf::player->attach (	917	cf::player->attach (
924	on_command => sub {	918	on_command => sub {
925	my ($pl, $name, $params) = @_;	919	my ($pl, $name, $params) = @_;
…		…
938		932
939	my $msg = eval { from_json $buf };	933	my $msg = eval { from_json $buf };
940		934
941	if (ref $msg) {	935	if (ref $msg) {
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	937	if (my %reply = $cb->($pl, $msg)) {
944	$pl->ext_reply ($msg->{msgid}, %reply);	938	$pl->ext_reply ($msg->{msgid}, %reply);
945	}	939	}
946	}	940	}
947	} else {	941	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
950		944
951	cf::override;	945	cf::override;
952	},	946	},
953	);	947	);
954		948
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	949	sub load_extension {
962	my ($path) = @_;	950	my ($path) = @_;
963		951
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
965	my $base = $1;	953	my $base = $1;
966	my $pkg = $1;	954	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;	955	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";	956	$pkg = "ext::$pkg";
969		957
970	warn "loading '$path' into '$pkg'\n";	958	warn "... loading '$path' into '$pkg'\n";
971		959
972	open my $fh, "<:utf8", $path	960	open my $fh, "<:utf8", $path
973	or die "$path: $!";	961	or die "$path: $!";
974		962
975	my $source =	963	my $source =
976	"package $pkg; use strict; use utf8;\n"	964	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"	965	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })	966	. (do { local $/; <$fh> })
979	. "\n};\n1";	967	. "\n};\n1";
980		968
981	eval $source	969	unless (eval $source) {
982	or die $@ ? "$path: $@\n"	970	my $msg = $@ ? "$path: $@\n"
983	: "extension disabled.\n";	971	: "extension disabled.\n";
984		972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
985	push @exts, $pkg;	973	warn $@;
986	$ext_pkg{$base} = $pkg;	974	warn "mandatory extension failed to load, exiting.\n";
987		975	exit 1;
988	# no strict 'refs';	976	}
989	# @{"$pkg\::ISA"} = ext::;	977	die $@;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	978	}
1004		979
1005	# remove commands	980	push @EXTS, $pkg;
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}	981	}
1030		982
1031	sub load_extensions {	983	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {	984	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;	985	next unless -r $ext;
…		…
1037	} or warn "$ext not loaded: $@";	989	} or warn "$ext not loaded: $@";
1038	}	990	}
1039	}	991	}
1040		992
1041	#############################################################################	993	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078		994
1079	=head2 CORE EXTENSIONS	995	=head2 CORE EXTENSIONS
1080		996
1081	Functions and methods that extend core crossfire objects.	997	Functions and methods that extend core crossfire objects.
1082		998
		999	=cut
		1000
		1001	package cf::player;
		1002
		1003	use Coro::AIO;
		1004
1083	=head3 cf::player	1005	=head3 cf::player
1084		1006
1085	=over 4	1007	=over 4
1086		1008
1087	=item cf::player::exists $login	1009	=item cf::player::find $login
1088		1010
1089	Returns true when the given account exists.	1011	Returns the given player object, loading it if necessary (might block).
1090		1012
1091	=cut	1013	=cut
1092		1014
1093	sub cf::player::exists($) {	1015	sub playerdir($) {
1094	cf::player::find $_[0]	1016	"$PLAYERDIR/"
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1096	}	1018	}
1097		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
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)	1191	=item $player->ext_reply ($msgid, %msg)
1099		1192
1100	Sends an ext reply to the player.	1193	Sends an ext reply to the player.
1101		1194
1102	=cut	1195	=cut
1103		1196
1104	sub cf::player::ext_reply($$$%) {	1197	sub ext_reply($$%) {
1105	my ($self, $id, %msg) = @_;	1198	my ($self, $id, %msg) = @_;
1106		1199
1107	$msg{msgid} = $id;	1200	$msg{msgid} = $id;
1108		1201
1109	$self->send ("ext " . to_json \%msg);	1202	$self->send ("ext " . cf::to_json \%msg);
		1203	}
		1204
		1205	=item $player->ext_event ($type, %msg)
		1206
		1207	Sends an ext event to the client.
		1208
		1209	=cut
		1210
		1211	sub ext_event($$%) {
		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
1110	}	1244	}
1111		1245
1112	=back	1246	=back
1113
1114		1247
1115	=head3 cf::map	1248	=head3 cf::map
1116		1249
1117	=over 4	1250	=over 4
1118		1251
…		…
1121	package cf::map;	1254	package cf::map;
1122		1255
1123	use Fcntl;	1256	use Fcntl;
1124	use Coro::AIO;	1257	use Coro::AIO;
1125		1258
		1259	use overload
		1260	'""' => \&as_string,
		1261	fallback => 1;
		1262
1126	our $MAX_RESET = 3600;	1263	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1264	our $DEFAULT_RESET = 3000;
1128		1265
1129	sub generate_random_map {	1266	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1267	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1268	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1269	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1273	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1274	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1277	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$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},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1279	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(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"
1146	}	1411	}
1147		1412
1148	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1149	# all maps in C++...	1414	# all maps in C++...
1150	sub change_all_map_light {	1415	sub change_all_map_light {
…		…
1152		1417
1153	$_->change_map_light ($change)	1418	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1419	for grep $_->outdoor, values %cf::MAP;
1155	}	1420	}
1156		1421
		1422	sub unlink_save {
		1423	my ($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
1157	sub try_load_header($) {	1430	sub load_header_from($) {
1158	my ($path) = @_;	1431	my ($self, $path) = @_;
1159		1432
1160	utf8::encode $path;	1433	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1434	#aio_open $path, O_RDONLY, 0
		1435	# or return;
		1436
		1437	$self->_load_header ($path)
1162	or return;	1438	or return;
1163		1439
1164	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
1165	or return;	1483	or return;
		1484	$self->prepare_orig;
		1485	}
1166		1486
1167	# for better error messages only, will be overwritten	1487	$self->default_region (cf::region::find_by_path $self->{path})
1168	$map->path ($path);	1488	unless $self->default_region;
1169		1489
1170	$map->load_header ($path)	1490	1
1171	or return;
1172
1173	$map->{load_path} = $path;
1174
1175	$map
1176	}	1491	}
1177		1492
1178	sub find;	1493	sub find;
1179	sub find {	1494	sub find {
1180	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1181		1496
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1497	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1498
1187	cf::lock_wait "map_find:$key";	1499	cf::lock_wait "map_find:$path";
1188		1500
1189	$cf::MAP{$key} || do {	1501	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1502	my $guard = cf::lock_acquire "map_find:$path";
1191		1503	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1504	or return;
1211		1505
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1506	$map->{last_save} = $cf::RUNTIME;
1224		1507
1225	Coro::cede;	1508	$map->load_header
		1509	or return;
1226		1510
1227	if ($map->should_reset) {	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;
1228	$map->reset;	1514	$map->reset;
1229	undef $guard;	1515	undef $guard;
1230	$map = find $path	1516	return find $path;
1231	or return;
1232	}	1517	}
1233		1518
1234	$cf::MAP{$key} = $map	1519	$cf::MAP{$path} = $map
1235	}	1520	}
1236	}	1521	}
		1522
		1523	sub pre_load { }
		1524	sub post_load { }
1237		1525
1238	sub load {	1526	sub load {
1239	my ($self) = @_;	1527	my ($self) = @_;
1240		1528
		1529	local $self->{deny_reset} = 1; # loading can take a long time
		1530
1241	my $path = $self->{path};	1531	my $path = $self->{path};
		1532
		1533	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1534	my $guard = cf::lock_acquire "map_load:$path";
1243		1535
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1536	return if $self->in_memory != cf::MAP_SWAPPED;
1245		1537
1246	$self->in_memory (cf::MAP_LOADING);	1538	$self->in_memory (cf::MAP_LOADING);
1247		1539
1248	$self->alloc;	1540	$self->alloc;
		1541
		1542	$self->pre_load;
		1543	Coro::cede;
		1544
1249	$self->load_objects ($self->{load_path}, 1)	1545	$self->_load_objects ($self->{load_path}, 1)
1250	or return;	1546	or return;
1251		1547
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1549	if delete $self->{load_original};
1254		1550
1255	if (my $uniq = $path->uniq_path) {	1551	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1552	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1553	if (aio_open $uniq, O_RDONLY, 0) {
1258	$self->clear_unique_items;	1554	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1555	$self->_load_objects ($uniq, 0);
1260	}	1556	}
1261	}	1557	}
1262		1558
1263	Coro::cede;	1559	Coro::cede;
1264
1265	# now do the right thing for maps	1560	# now do the right thing for maps
1266	$self->link_multipart_objects;	1561	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1277	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;
1278	$self->activate;	1573	$self->activate;
1279	}	1574	}
1280		1575
1281	Coro::cede;
1282
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1576	$self->in_memory (cf::MAP_IN_MEMORY);
		1577	}
		1578
		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	$neigh->load;
		1612	}
1284	}	1613	}
1285		1614
1286	sub find_sync {	1615	sub find_sync {
1287	my ($path, $origin) = @_;	1616	my ($path, $origin) = @_;
1288		1617
1289	cf::sync_job { cf::map::find $path, $origin }	1618	cf::sync_job { find $path, $origin }
1290	}	1619	}
1291		1620
1292	sub do_load_sync {	1621	sub do_load_sync {
1293	my ($map) = @_;	1622	my ($map) = @_;
1294		1623
1295	cf::sync_job { $map->load };	1624	cf::sync_job { $map->load };
1296	}	1625	}
1297		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;
		1645	$map->load;
		1646
		1647	delete $MAP_PREFETCH{$path};
		1648	}
		1649	}
		1650	undef $MAP_PREFETCHER;
		1651	};
		1652	$MAP_PREFETCHER->prio (6);
		1653
		1654	()
		1655	}
		1656
1298	sub save {	1657	sub save {
1299	my ($self) = @_;	1658	my ($self) = @_;
1300		1659
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
1302		1661
1303	$self->{last_save} = $cf::RUNTIME;	1662	$self->{last_save} = $cf::RUNTIME;
1304		1663
1305	return unless $self->dirty;	1664	return unless $self->dirty;
1306		1665
1307	my $save = $self->{path}->save_path; utf8::encode $save;	1666	my $save = $self->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1667	my $uniq = $self->uniq_path; utf8::encode $uniq;
1309		1668
1310	$self->{load_path} = $save;	1669	$self->{load_path} = $save;
1311		1670
1312	return if $self->{deny_save};	1671	return if $self->{deny_save};
1313		1672
1314	local $self->{last_access} = $self->last_access;#d#	1673	local $self->{last_access} = $self->last_access;#d#
1315		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) = @_;
…		…
1339		1702
1340	sub reset_at {	1703	sub reset_at {
1341	my ($self) = @_;	1704	my ($self) = @_;
1342		1705
1343	# TODO: safety, remove and allow resettable per-player maps	1706	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};	1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1345	return 1e99 if $self->{deny_reset};	1708	return 1e99 if $self->{deny_reset};
1346		1709
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		1712
…		…
1354	my ($self) = @_;	1717	my ($self) = @_;
1355		1718
1356	$self->reset_at <= $cf::RUNTIME	1719	$self->reset_at <= $cf::RUNTIME
1357	}	1720	}
1358		1721
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	1722	sub reset {
1381	my ($self) = @_;	1723	my ($self) = @_;
1382		1724
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	1725	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		1726
1385	return if $self->players;	1727	return if $self->players;
1386	return if $self->{path}{user_rel};#d#	1728	return if $self->isa ("ext::map_per_player");#d#
1387		1729
1388	warn "resetting map ", $self->path;#d#	1730	warn "resetting map ", $self->path;#d#
1389		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
1390	delete $cf::MAP{$self->path};	1742	delete $cf::MAP{$self->path};
		1743
		1744	$self->clear;
1391		1745
1392	$_->clear_links_to ($self) for values %cf::MAP;	1746	$_->clear_links_to ($self) for values %cf::MAP;
1393		1747
1394	$self->unlink_save;	1748	$self->unlink_save;
1395	$self->destroy;	1749	$self->destroy;
…		…
1398	my $nuke_counter = "aaaa";	1752	my $nuke_counter = "aaaa";
1399		1753
1400	sub nuke {	1754	sub nuke {
1401	my ($self) = @_;	1755	my ($self) = @_;
1402		1756
		1757	delete $cf::MAP{$self->path};
		1758
		1759	$self->unlink_save;
		1760
		1761	bless $self, "cf::map";
		1762	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	1763	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	1764	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1766
		1767	$cf::MAP{$self->path} = $self;
		1768
1406	$self->reset; # polite request, might not happen	1769	$self->reset; # polite request, might not happen
1407	}	1770	}
1408		1771
1409	sub customise_for {	1772	=item cf::map::unique_maps
1410	my ($map, $ob) = @_;
1411		1773
1412	if ($map->per_player) {	1774	Returns an arrayref of paths of all shared maps that have
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1775	instantiated unique items. May block.
1414	}
1415		1776
1416	$map	1777	=cut
1417	}
1418		1778
1419	sub emergency_save {	1779	sub unique_maps() {
1420	my $freeze_guard = cf::freeze_mainloop;	1780	my $files = aio_readdir $UNIQUEDIR
		1781	or return;
1421		1782
1422	warn "enter emergency map save\n";	1783	my @paths;
1423		1784
1424	cf::sync_job {	1785	for (@$files) {
1425	warn "begin emergency map save\n";	1786	utf8::decode $_;
1426	$_->save for values %cf::MAP;	1787	next if /\.pst$/;
		1788	next unless /^$PATH_SEP/o;
		1789
		1790	push @paths, cf::map::normalise $_;
1427	};	1791	}
1428		1792
1429	warn "end emergency map save\n";	1793	\@paths
1430	}	1794	}
1431		1795
1432	package cf;	1796	package cf;
1433		1797
1434	=back	1798	=back
1435		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
1436		1826
1437	=head3 cf::object::player	1827	=head3 cf::object::player
1438		1828
1439	=over 4	1829	=over 4
1440		1830
…		…
1480		1870
1481	=item $player_object->enter_link	1871	=item $player_object->enter_link
1482		1872
1483	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}>).
1484		1874
1485	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
1486	I<MUST> call C<leave_link> as soon as possible, though.	1876	I<MUST> call C<leave_link> as soon as possible, though.
1487		1877
		1878	Will never block.
		1879
1488	=item $player_object->leave_link ($map, $x, $y)	1880	=item $player_object->leave_link ($map, $x, $y)
1489		1881
1490	Moves the player out of the specila link map onto the given map. If the	1882	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	1883	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	1884	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	1885	fails, to the emergency map position.
1494		1886
1495	Might block.	1887	Might block.
1496		1888
1497	=cut	1889	=cut
		1890
		1891	sub link_map {
		1892	unless ($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	$LINK_MAP
		1899	}
1498		1900
1499	sub cf::object::player::enter_link {	1901	sub cf::object::player::enter_link {
1500	my ($self) = @_;	1902	my ($self) = @_;
1501		1903
1502	$self->deactivate_recursive;	1904	$self->deactivate_recursive;
1503		1905
1504	return if $self->map == $LINK_MAP;	1906	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		1907
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	1909	if $self->map && $self->map->{path} ne "{link}";
1508		1910
1509	$self->enter_map ($LINK_MAP, 20, 20);	1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1510	}	1912	}
1511		1913
1512	sub cf::object::player::leave_link {	1914	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	1915	my ($self, $map, $x, $y) = @_;
		1916
		1917	return unless $self->contr->active;
1514		1918
1515	my $link_pos = delete $self->{_link_pos};	1919	my $link_pos = delete $self->{_link_pos};
1516		1920
1517	unless ($map) {	1921	unless ($map) {
1518	# restore original map position	1922	# restore original map position
…		…
1532	# use -1 or undef as default coordinates, not 0, 0	1936	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	1937	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	1938	if $x <=0 && $y <= 0;
1535		1939
1536	$map->load;	1940	$map->load;
		1941	$map->load_diag;
1537		1942
		1943	return unless $self->contr->active;
1538	$self->activate_recursive;	1944	$self->activate_recursive;
		1945
		1946	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1539	$self->enter_map ($map, $x, $y);	1947	$self->enter_map ($map, $x, $y);
1540	}	1948	}
1541		1949
1542	cf::player->attach (
1543	on_logout => sub {
1544	my ($pl) = @_;
1545
1546	# abort map switching before logout
1547	if ($pl->ob->{_link_pos}) {
1548	cf::sync_job {
1549	$pl->ob->leave_link
1550	};
1551	}
1552	},
1553	on_login => sub {
1554	my ($pl) = @_;
1555
1556	# try to abort aborted map switching on player login :)
1557	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;
1560	cf::async {
1561	# we need this sleep as the login has a concurrent enter_exit running
1562	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;
1565	};
1566	}
1567	},
1568	);
1569
1570	=item $player_object->goto ($path, $x, $y)	1950	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1571		1951
		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.
		1956
1572	=cut	1957	=cut
		1958
		1959	our $GOTOGEN;
1573		1960
1574	sub cf::object::player::goto {	1961	sub cf::object::player::goto {
1575	my ($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;
1576		1966
1577	$self->enter_link;	1967	$self->enter_link;
1578		1968
1579	(cf::async {	1969	(async {
1580	$path = new cf::path $path;	1970	my $map = eval {
1581
1582	my $map = cf::map::find $path->as_string;	1971	my $map = cf::map::find $path;
		1972
		1973	if ($map) {
1583	$map = $map->customise_for ($self) if $map;	1974	$map = $map->customise_for ($self);
1584		1975	$map = $check->($map) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	1976	} else {
1586	# if $map;
1587
1588	$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	}
1589		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};
1590	$self->leave_link ($map, $x, $y);	1990	$self->leave_link ($map, $x, $y);
		1991	}
1591	})->prio (1);	1992	})->prio (1);
1592	}	1993	}
1593		1994
1594	=item $player_object->enter_exit ($exit_object)	1995	=item $player_object->enter_exit ($exit_object)
1595		1996
…		…
1597		1998
1598	sub parse_random_map_params {	1999	sub parse_random_map_params {
1599	my ($spec) = @_;	2000	my ($spec) = @_;
1600		2001
1601	my $rmp = { # defaults	2002	my $rmp = { # defaults
1602	xsize => 10,	2003	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2004	ysize => (cf::rndm 15, 40),
		2005	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2006	#layout => string,
1604	};	2007	};
1605		2008
1606	for (split /\n/, $spec) {	2009	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2010	my ($k, $v) = split /\s+/, $_, 2;
1608		2011
…		…
1612	$rmp	2015	$rmp
1613	}	2016	}
1614		2017
1615	sub prepare_random_map {	2018	sub prepare_random_map {
1616	my ($exit) = @_;	2019	my ($exit) = @_;
		2020
		2021	my $guard = cf::lock_acquire "exit_prepare:$exit";
1617		2022
1618	# all this does is basically replace the /! path by	2023	# all this does is basically replace the /! path by
1619	# a new random map path (?random/...) with a seed	2024	# a new random map path (?random/...) with a seed
1620	# that depends on the exit object	2025	# that depends on the exit object
1621		2026
1622	my $rmp = parse_random_map_params $exit->msg;	2027	my $rmp = parse_random_map_params $exit->msg;
1623		2028
1624	if ($exit->map) {	2029	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2030	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2031	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2032	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2033	$rmp->{origin_y} = $exit->y;
1629	}	2034	}
1630		2035
1631	$rmp->{random_seed} ||= $exit->random_seed;	2036	$rmp->{random_seed} ||= $exit->random_seed;
1632		2037
1633	my $data = cf::to_json $rmp;	2038	my $data = cf::to_json $rmp;
1634	my $md5 = Digest::MD5::md5_hex $data;	2039	my $md5 = Digest::MD5::md5_hex $data;
		2040	my $meta = "$RANDOMDIR/$md5.meta";
1635		2041
1636	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) {
1637	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;
1638		2046
1639	$exit->slaying ("?random/$md5");	2047	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2048	$exit->msg (undef);
1641	}	2049	}
1642	}	2050	}
…		…
1644	sub cf::object::player::enter_exit {	2052	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2053	my ($self, $exit) = @_;
1646		2054
1647	return unless $self->type == cf::PLAYER;	2055	return unless $self->type == cf::PLAYER;
1648		2056
		2057	if ($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
1649	$self->enter_link;	2068	$self->enter_link;
1650		2069
1651	(cf::async {	2070	(async {
1652	$self->deactivate_recursive; # just to be sure	2071	$self->deactivate_recursive; # just to be sure
1653	unless (eval {	2072	unless (eval {
1654	prepare_random_map $exit	2073	$self->goto ($slaying, $hp, $sp);
1655	if $exit->slaying eq "/!";
1656
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1659		2074
1660	1;	2075	1;
1661	}) {	2076	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2077	$self->message ("Something went wrong deep within the crossfire server. "
1663	. "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. "
1664	. "Please report this to the dungeon master",	2079	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2080	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2081
1667	warn "ERROR in enter_exit: $@";	2082	warn "ERROR in enter_exit: $@";
1668	$self->leave_link;	2083	$self->leave_link;
1669	}	2084	}
1670	})->prio (1);	2085	})->prio (1);
…		…
1683		2098
1684	sub cf::client::send_drawinfo {	2099	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2100	my ($self, $text, $flags) = @_;
1686		2101
1687	utf8::encode $text;	2102	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2103	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2104	}
1690		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	}
1691		2118
1692	=item $success = $client->query ($flags, "text", \&cb)	2119	=item $success = $client->query ($flags, "text", \&cb)
1693		2120
1694	Queues a query to the client, calling the given callback with	2121	Queues a query to the client, calling the given callback with
1695	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>,
…		…
1724	# get handled first	2151	# get handled first
1725	my $queue = delete $ns->{query_queue}	2152	my $queue = delete $ns->{query_queue}
1726	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
1727		2154
1728	(shift @$queue)->[1]->($msg);	2155	(shift @$queue)->[1]->($msg);
		2156	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		2157
1730	push @{ $ns->{query_queue} }, @$queue;	2158	push @{ $ns->{query_queue} }, @$queue;
1731		2159
1732	if (@{ $ns->{query_queue} } == @$queue) {	2160	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	2161	if (@$queue) {
…		…
1737	}	2165	}
1738	}	2166	}
1739	},	2167	},
1740	);	2168	);
1741		2169
1742	=item $client->coro (\&cb)	2170	=item $client->async (\&cb)
1743		2171
1744	Create a new coroutine, running the specified callback. The coroutine will	2172	Create a new coroutine, running the specified callback. The coroutine will
1745	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,
1746	or loss of connection).	2174	or loss of connection).
1747		2175
1748	=cut	2176	=cut
1749		2177
1750	sub cf::client::coro {	2178	sub cf::client::async {
1751	my ($self, $cb) = @_;	2179	my ($self, $cb) = @_;
1752		2180
1753	my $coro = &cf::async ($cb);	2181	my $coro = &Coro::async ($cb);
1754		2182
1755	$coro->on_destroy (sub {	2183	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	2184	delete $self->{_coro}{$coro+0};
1757	});	2185	});
1758		2186
…		…
1791		2219
1792	# here we export the classes and methods available to script code	2220	# here we export the classes and methods available to script code
1793		2221
1794	=pod	2222	=pod
1795		2223
1796	The following fucntions and emthods are available within a safe environment:	2224	The following functions and methods are available within a safe environment:
1797		2225
1798	cf::object contr pay_amount pay_player map	2226	cf::object contr pay_amount pay_player map
1799	cf::object::player player	2227	cf::object::player player
1800	cf::player peaceful	2228	cf::player peaceful
1801	cf::map trigger	2229	cf::map trigger
…		…
1886	#############################################################################	2314	#############################################################################
1887		2315
1888	=head2 EXTENSION DATABASE SUPPORT	2316	=head2 EXTENSION DATABASE SUPPORT
1889		2317
1890	Crossfire maintains a very simple database for extension use. It can	2318	Crossfire maintains a very simple database for extension use. It can
1891	currently store anything that can be serialised using Storable, which	2319	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1892	excludes objects.	2320	convert to/from binary).
1893		2321
1894	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
1895	using it, it should be unique.	2323	using it, it should be unique.
1896		2324
1897	=over 4	2325	=over 4
1898		2326
1899	=item $hashref = cf::db_get $family
1900
1901	Return a hashref for use by the extension C<$family>, which can be
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904
1905	=item $value = cf::db_get $family => $key	2327	=item $value = cf::db_get $family => $key
1906		2328
1907	Returns a single value from the database	2329	Returns a single value from the database.
1908
1909	=item cf::db_put $family => $hashref
1910
1911	Stores the given family hashref into the database. Updates are delayed, if
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1913		2330
1914	=item cf::db_put $family => $key => $value	2331	=item cf::db_put $family => $key => $value
1915		2332
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you	2333	Stores the given C<$value> in the family.
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926		2334
1927	=cut	2335	=cut
1928		2336
1929	our $DB;	2337	our $DB;
1930		2338
1931	{	2339	sub db_init {
1932	my $path = cf::localdir . "/database.pst";	2340	unless ($DB) {
		2341	$DB = BDB::db_create $DB_ENV;
1933		2342
1934	sub db_load() {	2343	cf::sync_job {
1935	$DB = stat $path ? Storable::retrieve $path : { };	2344	eval {
1936	}	2345	$DB->set_flags (BDB::CHKSUM);
1937		2346
1938	my $pid;	2347	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1939		2348	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1940	sub db_save() {	2349	cf::cleanup "db_open(db): $!" if $!;
1941	waitpid $pid, 0 if $pid;	2350	};
1942	if (0 == ($pid = fork)) {	2351	cf::cleanup "db_open(db): $@" if $@;
1943	$DB->{_meta}{version} = 1;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}	2352	};
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});	2353	}
		2354	}
1960		2355
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}
1965
1966	sub db_get($;$) {	2356	sub db_get($$) {
1967	@_ >= 2	2357	my $key = "$_[0]/$_[1]";
1968	? $DB->{$_[0]}{$_[1]}
1969	: ($DB->{$_[0]} ||= { })
1970	}
1971		2358
		2359	cf::sync_job {
		2360	BDB::db_get $DB, undef, $key, my $data;
		2361
		2362	$! ? ()
		2363	: $data
		2364	}
		2365	}
		2366
1972	sub db_put($$;$) {	2367	sub db_put($$$) {
1973	if (@_ >= 3) {	2368	BDB::dbreq_pri 4;
1974	$DB->{$_[0]}{$_[1]} = $_[2];	2369	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1975	} else {	2370	}
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980		2371
1981	cf::global->attach (	2372	=item cf::cache $id => [$paths...], $processversion => $process
1982	prio => 10000,	2373
1983	on_cleanup => sub {	2374	Generic caching function that returns the value of the resource $id,
1984	db_sync;	2375	caching and regenerating as required.
		2376
		2377	This function can block.
		2378
		2379	=cut
		2380
		2381	sub cache {
		2382	my ($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 "$src->[$_]: $!";
1985	},	2404	}
1986	);	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"
1987	}	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
1988		2487
1989	#############################################################################	2488	#############################################################################
1990	# 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	}
1991		2577
1992	sub cfg_load {	2578	sub cfg_load {
1993	open my $fh, "<:utf8", cf::confdir . "/config"	2579	open my $fh, "<:utf8", "$CONFDIR/config"
1994	or return;	2580	or return;
1995		2581
1996	local $/;	2582	local $/;
1997	*CFG = YAML::Syck::Load <$fh>;	2583	*CFG = YAML::Syck::Load <$fh>;
1998		2584
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2585	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2000		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
2001	if (exists $CFG{mlockall}) {	2590	if (exists $CFG{mlockall}) {
2002	eval {	2591	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	2592	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	2593	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	2594	};
2006	warn $@ if $@;	2595	warn $@ if $@;
2007	}	2596	}
2008	}	2597	}
2009		2598
2010	sub main {	2599	sub main {
2011	# we must not ever block the main coroutine	2600	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	2601	local $Coro::idle = sub {
2013	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#
2014	(Coro::unblock_sub {	2603	(async {
2015	Event::one_event;	2604	Event::one_event;
2016	})->();	2605	})->prio (Coro::PRIO_MAX);
2017	};	2606	};
2018		2607
2019	cfg_load;	2608	cfg_load;
2020	db_load;	2609	db_init;
2021	load_extensions;	2610	load_extensions;
		2611
		2612	$TICK_WATCHER->start;
2022	Event::loop;	2613	Event::loop;
2023	}	2614	}
2024		2615
2025	#############################################################################	2616	#############################################################################
2026	# initialisation	2617	# initialisation and cleanup
2027		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
2028	sub reload() {	2674	sub do_reload_perl() {
2029	# can/must only be called in main	2675	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	2676	if ($Coro::current != $Coro::main) {
2031	warn "can only reload from main coroutine\n";	2677	warn "can only reload from main coroutine";
2032	return;	2678	return;
2033	}	2679	}
2034		2680
2035	warn "reloading...";	2681	warn "reloading...";
2036		2682
2037	my $guard = freeze_mainloop;	2683	warn "entering sync_job";
		2684
		2685	cf::sync_job {
		2686	cf::write_runtime; # external watchdog should not bark
2038	cf::emergency_save;	2687	cf::emergency_save;
		2688	cf::write_runtime; # external watchdog should not bark
2039		2689
2040	eval {	2690	warn "syncing database to disk";
		2691	BDB::db_env_txn_checkpoint $DB_ENV;
		2692
2041	# 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
2042		2694
2043	# cancel all watchers	2695	warn "cancelling all WF_AUTOCANCEL watchers";
2044	for (Event::all_watchers) {	2696	for (Event::all_watchers) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;	2697	$_->cancel if $_->data & WF_AUTOCANCEL;
2046	}	2698	}
2047		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
2048	# cancel all extension coros	2711	warn "cancelling all extension coros";
2049	$_->cancel for values %EXT_CORO;	2712	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	2713	%EXT_CORO = ();
2051		2714
2052	# unload all extensions	2715	warn "removing commands";
2053	for (@exts) {	2716	%COMMAND = ();
		2717
		2718	warn "removing ext commands";
		2719	%EXTCMD = ();
		2720
		2721	warn "unloading/nuking all extensions";
		2722	for my $pkg (@EXTS) {
2054	warn "unloading <$_>";	2723	warn "... unloading $pkg";
2055	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: $@";
2056	}	2730	}
2057		2731
		2732	warn "... nuking $pkg";
		2733	Symbol::delete_package $pkg;
		2734	}
		2735
2058	# unload all modules loaded from $LIBDIR	2736	warn "unloading all perl modules loaded from $LIBDIR";
2059	while (my ($k, $v) = each %INC) {	2737	while (my ($k, $v) = each %INC) {
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2738	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061		2739
2062	warn "removing <$k>";	2740	warn "... unloading $k";
2063	delete $INC{$k};	2741	delete $INC{$k};
2064		2742
2065	$k =~ s/\.pm$//;	2743	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;	2744	$k =~ s/\//::/g;
2067		2745
…		…
2070	}	2748	}
2071		2749
2072	Symbol::delete_package $k;	2750	Symbol::delete_package $k;
2073	}	2751	}
2074		2752
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	2753	warn "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	2754	Symbol::delete_package "safe::$_"
2081	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);
2082		2756
2083	# remove register_script_function callbacks
2084	# TODO
2085
2086	# unload cf.pm "a bit"	2757	warn "unloading cf.pm \"a bit\"";
2087	delete $INC{"cf.pm"};	2758	delete $INC{"cf.pm"};
		2759	delete $INC{"cf/pod.pm"};
2088		2760
2089	# don't, removes xs symbols, too,	2761	# don't, removes xs symbols, too,
2090	# and global variables created in xs	2762	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	2763	#Symbol::delete_package __PACKAGE__;
2092		2764
2093	# reload cf.pm	2765	warn "unload completed, starting to reload now";
		2766
2094	warn "reloading cf.pm";	2767	warn "reloading cf.pm";
2095	require cf;	2768	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2769	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2097		2770
2098	# load config and database again	2771	warn "loading config and database again";
2099	cf::cfg_load;	2772	cf::cfg_load;
2100	cf::db_load;
2101		2773
2102	# load extensions
2103	warn "load extensions";	2774	warn "loading extensions";
2104	cf::load_extensions;	2775	cf::load_extensions;
2105		2776
2106	# reattach attachments to objects	2777	warn "reattaching attachments to objects/players";
2107	warn "reattach";	2778	_global_reattach; # objects, sockets
2108	_global_reattach;	2779	warn "reattaching attachments to maps";
2109	};	2780	reattach $_ for values %MAP;
		2781	warn "reattaching attachments to players";
		2782	reattach $_ for values %PLAYER;
2110		2783
2111	if ($@) {	2784	warn "leaving sync_job";
		2785
		2786	1
		2787	} or do {
2112	warn $@;	2788	warn $@;
2113	warn "error while reloading, exiting.";	2789	warn "error while reloading, exiting.";
2114	exit 1;	2790	exit 1;
2115	}	2791	};
2116		2792
2117	warn "reloaded successfully";	2793	warn "reloaded";
2118	};	2794	};
2119		2795
2120	#############################################################################	2796	our $RELOAD_WATCHER; # used only during reload
2121		2797
2122	unless ($LINK_MAP) {	2798	sub reload_perl() {
2123	$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.
2124		2801
2125	$LINK_MAP->width (41);	2802	$RELOAD_WATCHER ||= Event->timer (
2126	$LINK_MAP->height (41);	2803	reentrant => 0,
2127	$LINK_MAP->alloc;
2128	$LINK_MAP->path ("{link}");
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,	2804	after => 0,
		2805	data => WF_AUTOCANCEL,
2135	cb => sub {	2806	cb => sub {
2136	$_[0]->w->cancel;	2807	do_reload_perl;
2137		2808	undef $RELOAD_WATCHER;
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});	2809	},
2156		2810	);
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	2811	}
2162
2163	register "<global>", __PACKAGE__;
2164		2812
2165	register_command "reload" => sub {	2813	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	2814	my ($who, $arg) = @_;
2167		2815
2168	if ($who->flag (FLAG_WIZ)) {	2816	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	2817	$who->message ("reloading server.");
		2818	async { reload_perl };
2172	}	2819	}
2173	};	2820	};
2174		2821
2175	unshift @INC, $LIBDIR;	2822	unshift @INC, $LIBDIR;
2176		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;
2177	$TICK_WATCHER = Event->timer (	2849	$TICK_WATCHER = Event->timer (
2178	reentrant => 0,	2850	reentrant => 0,
		2851	parked => 1,
2179	prio => 0,	2852	prio => 0,
2180	at => $NEXT_TICK || $TICK,	2853	at => $NEXT_TICK || $TICK,
2181	data => WF_AUTOCANCEL,	2854	data => WF_AUTOCANCEL,
2182	cb => sub {	2855	cb => sub {
		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
2183	cf::server_tick; # one server iteration	2864	cf::server_tick; # one server iteration
		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
		2887	};
		2888
2184	$RUNTIME += $TICK;	2889	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;	2890	$NEXT_TICK += $TICK;
2186		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
2187	# 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
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2913	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2189		2914
2190	$TICK_WATCHER->at ($NEXT_TICK);	2915	$TICK_WATCHER->at ($NEXT_TICK);
2191	$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
2192	},	2924	},
2193	);	2925	);
2194		2926
		2927	{
2195	IO::AIO::max_poll_time $TICK * 0.2;	2928	BDB::max_poll_time $TICK * 0.1;
2196		2929	$BDB_POLL_WATCHER = Event->io (
2197	Event->io (	2930	reentrant => 0,
2198	fd => IO::AIO::poll_fileno,	2931	fd => BDB::poll_fileno,
2199	poll => 'r',	2932	poll => 'r',
2200	prio => 5,	2933	prio => 0,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,	2934	data => WF_AUTOCANCEL,
2207	after => 0,	2935	cb => \&BDB::poll_cb,
2208	interval => 10,	2936	);
2209	cb => sub {	2937	BDB::min_parallel 8;
2210	(Coro::unblock_sub {	2938
2211	write_runtime	2939	BDB::set_sync_prepare {
2212	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 $@;
2213	})->();	2973	};
2214	},	2974	}
2215	);	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;
2216		3032
2217	END { cf::emergency_save }	3033	END { cf::emergency_save }
2218		3034
2219	1	3035	1
2220		3036

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