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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 2007 UTC vs.
Revision 1.264 by root, Sun May 6 05:44:48 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 $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		94
57	binmode STDOUT;	95	binmode STDOUT;
58	binmode STDERR;	96	binmode STDERR;
59		97
60	# read virtual server time, if available	98	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
65	}	103	}
66		104
67	mkdir cf::localdir;	105	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		107
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	108	our $EMERGENCY_POSITION;
		109
		110	sub cf::map::normalise;
76		111
77	#############################################################################	112	#############################################################################
78		113
79	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
80		115
…		…
87	=item $cf::RUNTIME	122	=item $cf::RUNTIME
88		123
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	124	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	125	every server tick.
91		126
92	=item $cf::LIBDIR	127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		130
94	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		133	unique-items directory, player file directory, random maps directory and
		134	database environment.
96		135
97	=item $cf::NOW	136	=item $cf::NOW
98		137
99	The time of the last (current) server tick.	138	The time of the last (current) server tick.
100		139
…		…
104		143
105	=item %cf::CFG	144	=item %cf::CFG
106		145
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	147	from wherever your confdir points to.
		148
		149	=item cf::wait_for_tick, cf::wait_for_tick_begin
		150
		151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		152	returns directly I<after> the tick processing (and consequently, can only wake one process
		153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
109		154
110	=back	155	=back
111		156
112	=cut	157	=cut
113		158
114	BEGIN {	159	BEGIN {
115	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	161	my $msg = join "", @_;
117	utf8::encode $msg;
118		162
119	$msg .= "\n"	163	$msg .= "\n"
120	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
121		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
123	};	170	};
124	}	171	}
125		172
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		192
146	$Event::DIED = sub {	193	$Event::DIED = sub {
147	warn "error in event callback: @_";	194	warn "error in event callback: @_";
148	};	195	};
149		196
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
155		198
156	=over 4	199	=over 4
157		200
158	=cut	201	=item dumpval $ref
159		202
		203	=cut
		204
		205	sub dumpval {
		206	eval {
		207	local $SIG{__DIE__};
		208	my $d;
		209	if (1) {
		210	$d = new Data::Dumper([$_[0]], ["*var"]);
		211	$d->Terse(1);
		212	$d->Indent(2);
		213	$d->Quotekeys(0);
		214	$d->Useqq(1);
		215	#$d->Bless(...);
		216	$d->Seen($_[1]) if @_ > 1;
		217	$d = $d->Dump();
		218	}
		219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		220	$d
		221	} || "[unable to dump $_[0]: '$@']";
		222	}
		223
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
161		225
162	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
163		227
164	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
165		229
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
174		231
175	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
176
177	=cut
178
179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		233
184	=item cf::lock_wait $string	234	=item cf::lock_wait $string
185		235
186	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
187		237
…		…
193	returned.	243	returned.
194		244
195	Lock names should begin with a unique identifier (for example, cf::map::find	245	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	246	uses map_find and cf::map::load uses map_load).
197		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
		251
198	=cut	252	=cut
199		253
200	our %LOCK;	254	our %LOCK;
201		255
202	sub lock_wait($) {	256	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
223	}	277	}
224	}	278	}
225		279
226	=item cf::async { BLOCK }	280	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) = @_;	281	my ($key) = @_;
235		282
236	Coro::async {	283	! ! $LOCK{$key}
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}	284	}
241		285
242	sub freeze_mainloop {	286	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	287	return unless $TICK_WATCHER->is_active;
244		288
245	my $guard = Coro::guard { $TICK_WATCHER->start };	289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
246	$TICK_WATCHER->stop;	292	$TICK_WATCHER->stop;
247	$guard	293	$guard
248	}	294	}
		295
		296	=item cf::async { BLOCK }
		297
		298	Currently the same as Coro::async_pool, meaning you cannot use
		299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
		301
		302	=cut
		303
		304	BEGIN { *async = \&Coro::async_pool }
249		305
250	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
251		307
252	The design of crossfire+ requires that the main coro ($Coro::main) is	308	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	309	always able to handle events or runnable, as crossfire+ is only partly
…		…
272	my $freeze_guard = freeze_mainloop;	328	my $freeze_guard = freeze_mainloop;
273		329
274	my $busy = 1;	330	my $busy = 1;
275	my @res;	331	my @res;
276		332
277	(Coro::async {	333	(async {
278	@res = eval { $job->() };	334	@res = eval { $job->() };
279	warn $@ if $@;	335	warn $@ if $@;
280	undef $busy;	336	undef $busy;
281	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
282		338
283	while ($busy) {	339	while ($busy) {
284	Coro::cede_notself;	340	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	341	}
287		342
288	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
289	} else {	344	} else {
290	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
291		346
292	$job->()	347	$job->()
293	}	348	}
294	}	349	}
295		350
296	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
297		352
298	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
300		355
301	=cut	356	=cut
302		357
303	sub coro(&) {	358	sub async_ext(&) {
304	my $cb = shift;	359	my $cb = shift;
305		360
306	my $coro = &cf::async ($cb);	361	my $coro = &Coro::async ($cb);
307		362
308	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
310	});	365	});
311	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
312		367
313	$coro	368	$coro
314	}	369	}
315		370
316	sub write_runtime {	371	sub write_runtime {
317	my $runtime = cf::localdir . "/runtime";	372	my $runtime = "$LOCALDIR/runtime";
318		373
		374	# first touch the runtime file to show we are still running:
		375	# the fsync below can take a very very long time.
		376
		377	warn "touching runtime...\n";#d#
		378	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		379	utime undef, undef, $fh;
		380	}
		381
		382	my $guard = cf::lock_acquire "write_runtime";
		383
		384	warn "starting to write runtime...\n";#d#
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	385	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
320	or return;	386	or return;
321		387
		388	my $value = $cf::RUNTIME + 90 + 10;
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	389	# 10 is the runtime save interval, for a monotonic clock
		390	# 60 allows for the watchdog to kill the server.
		391
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0	392	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;	393	and return;
325		394
		395	# always fsync - this file is important
326	aio_fsync $fh	396	aio_fsync $fh
327	and return;	397	and return;
328		398
		399	# touch it again to show we are up-to-date
		400	utime undef, undef, $fh;
		401
329	close $fh	402	close $fh
330	or return;	403	or return;
331		404
332	aio_rename "$runtime~", $runtime	405	aio_rename "$runtime~", $runtime
333	and return;	406	and return;
334		407
		408	warn "... done writing runtime.\n";#d#
		409
335	1	410	1
336	}	411	}
337		412
		413	=item cf::datalog type => key => value, ...
		414
		415	Log a datalog packet of the given type with the given key-value pairs.
		416
		417	=cut
		418
		419	sub datalog($@) {
		420	my ($type, %kv) = @_;
		421	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		422	}
		423
338	=back	424	=back
339		425
340	=cut	426	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($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		427
462	#############################################################################	428	#############################################################################
463		429
464	=head2 ATTACHABLE OBJECTS	430	=head2 ATTACHABLE OBJECTS
465		431
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	557	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	558	our @CB_MAP = ();
593		559
594	my %attachment;	560	my %attachment;
595		561
		562	sub cf::attachable::thawer_merge {
		563	# simply override everything except _meta
		564	local $_[0]{_meta};
		565	%{$_[0]} = %{$_[1]};
		566	}
		567
596	sub _attach_cb($$$$) {	568	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	569	my ($registry, $event, $prio, $cb) = @_;
598		570
599	use sort 'stable';	571	use sort 'stable';
600		572
…		…
771	# object support	743	# object support
772		744
773	sub reattach {	745	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	746	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	747	my ($obj) = @_;
		748
		749	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		750
777	my $registry = $obj->registry;	751	my $registry = $obj->registry;
778		752
779	@$registry = ();	753	@$registry = ();
780		754
…		…
827	$filename, length $$rdata, scalar @$objs;	801	$filename, length $$rdata, scalar @$objs;
828		802
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	803	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	804	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	805	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	806	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	807	close $fh;
834		808
835	if (@$objs) {	809	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	810	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	811	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	812	my $data = Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	813	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	814	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	815	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	816	aio_rename "$filename.pst~", "$filename.pst";
843	}	817	}
844	} else {	818	} else {
845	aio_unlink "$filename.pst";	819	aio_unlink "$filename.pst";
…		…
912	=cut	886	=cut
913		887
914	sub register_extcmd {	888	sub register_extcmd {
915	my ($name, $cb) = @_;	889	my ($name, $cb) = @_;
916		890
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	891	$EXTCMD{$name} = $cb;
921	}	892	}
922		893
923	cf::player->attach (	894	cf::player->attach (
924	on_command => sub {	895	on_command => sub {
925	my ($pl, $name, $params) = @_;	896	my ($pl, $name, $params) = @_;
…		…
938		909
939	my $msg = eval { from_json $buf };	910	my $msg = eval { from_json $buf };
940		911
941	if (ref $msg) {	912	if (ref $msg) {
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	913	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	914	if (my %reply = $cb->($pl, $msg)) {
944	$pl->ext_reply ($msg->{msgid}, %reply);	915	$pl->ext_reply ($msg->{msgid}, %reply);
945	}	916	}
946	}	917	}
947	} else {	918	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	919	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
950		921
951	cf::override;	922	cf::override;
952	},	923	},
953	);	924	);
954		925
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	926	sub load_extension {
962	my ($path) = @_;	927	my ($path) = @_;
963		928
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	929	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
965	my $base = $1;	930	my $base = $1;
966	my $pkg = $1;	931	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;	932	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";	933	$pkg = "ext::$pkg";
969		934
970	warn "loading '$path' into '$pkg'\n";	935	warn "... loading '$path' into '$pkg'\n";
971		936
972	open my $fh, "<:utf8", $path	937	open my $fh, "<:utf8", $path
973	or die "$path: $!";	938	or die "$path: $!";
974		939
975	my $source =	940	my $source =
976	"package $pkg; use strict; use utf8;\n"	941	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"	942	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })	943	. (do { local $/; <$fh> })
979	. "\n};\n1";	944	. "\n};\n1";
980		945
981	eval $source	946	unless (eval $source) {
982	or die $@ ? "$path: $@\n"	947	my $msg = $@ ? "$path: $@\n"
983	: "extension disabled.\n";	948	: "extension disabled.\n";
984		949	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
985	push @exts, $pkg;	950	warn $@;
986	$ext_pkg{$base} = $pkg;	951	warn "mandatory extension failed to load, exiting.\n";
987		952	exit 1;
988	# no strict 'refs';	953	}
989	# @{"$pkg\::ISA"} = ext::;	954	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	# }	955	}
1004		956
1005	# remove commands	957	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	}	958	}
1030		959
1031	sub load_extensions {	960	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {	961	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;	962	next unless -r $ext;
…		…
1037	} or warn "$ext not loaded: $@";	966	} or warn "$ext not loaded: $@";
1038	}	967	}
1039	}	968	}
1040		969
1041	#############################################################################	970	#############################################################################
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		971
1079	=head2 CORE EXTENSIONS	972	=head2 CORE EXTENSIONS
1080		973
1081	Functions and methods that extend core crossfire objects.	974	Functions and methods that extend core crossfire objects.
1082		975
		976	=cut
		977
		978	package cf::player;
		979
		980	use Coro::AIO;
		981
1083	=head3 cf::player	982	=head3 cf::player
1084		983
1085	=over 4	984	=over 4
1086		985
1087	=item cf::player::exists $login	986	=item cf::player::find $login
1088		987
1089	Returns true when the given account exists.	988	Returns the given player object, loading it if necessary (might block).
1090		989
1091	=cut	990	=cut
1092		991
1093	sub cf::player::exists($) {	992	sub playerdir($) {
1094	cf::player::find $_[0]	993	"$PLAYERDIR/"
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	994	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1096	}	995	}
1097		996
		997	sub path($) {
		998	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		999
		1000	(playerdir $login) . "/playerdata"
		1001	}
		1002
		1003	sub find_active($) {
		1004	$cf::PLAYER{$_[0]}
		1005	and $cf::PLAYER{$_[0]}->active
		1006	and $cf::PLAYER{$_[0]}
		1007	}
		1008
		1009	sub exists($) {
		1010	my ($login) = @_;
		1011
		1012	$cf::PLAYER{$login}
		1013	or cf::sync_job { !aio_stat path $login }
		1014	}
		1015
		1016	sub find($) {
		1017	return $cf::PLAYER{$_[0]} || do {
		1018	my $login = $_[0];
		1019
		1020	my $guard = cf::lock_acquire "user_find:$login";
		1021
		1022	$cf::PLAYER{$_[0]} || do {
		1023	# rename old playerfiles to new ones
		1024	#TODO: remove when no longer required
		1025	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1026	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1027	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1028	aio_unlink +(playerdir $login) . "/$login.pl";
		1029
		1030	my $pl = load_pl path $login
		1031	or return;
		1032	$cf::PLAYER{$login} = $pl
		1033	}
		1034	}
		1035	}
		1036
		1037	sub save($) {
		1038	my ($pl) = @_;
		1039
		1040	return if $pl->{deny_save};
		1041
		1042	my $path = path $pl;
		1043	my $guard = cf::lock_acquire "user_save:$path";
		1044
		1045	return if $pl->{deny_save};
		1046
		1047	aio_mkdir playerdir $pl, 0770;
		1048	$pl->{last_save} = $cf::RUNTIME;
		1049
		1050	$pl->save_pl ($path);
		1051	Coro::cede;
		1052	}
		1053
		1054	sub new($) {
		1055	my ($login) = @_;
		1056
		1057	my $self = create;
		1058
		1059	$self->ob->name ($login);
		1060	$self->{deny_save} = 1;
		1061
		1062	$cf::PLAYER{$login} = $self;
		1063
		1064	$self
		1065	}
		1066
		1067	=item $pl->quit_character
		1068
		1069	Nukes the player without looking back. If logged in, the connection will
		1070	be destroyed. May block for a long time.
		1071
		1072	=cut
		1073
		1074	sub quit_character {
		1075	my ($pl) = @_;
		1076
		1077	my $name = $pl->ob->name;
		1078
		1079	$pl->{deny_save} = 1;
		1080	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1081
		1082	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1083	$pl->deactivate;
		1084	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1085	$pl->ns->destroy if $pl->ns;
		1086
		1087	my $path = playerdir $pl;
		1088	my $temp = "$path~$cf::RUNTIME~deleting~";
		1089	aio_rename $path, $temp;
		1090	delete $cf::PLAYER{$pl->ob->name};
		1091	$pl->destroy;
		1092
		1093	my $prefix = qr<^~\Q$name\E/>;
		1094
		1095	# nuke player maps
		1096	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1097
		1098	IO::AIO::aio_rmtree $temp;
		1099	}
		1100
		1101	=item $pl->kick
		1102
		1103	Kicks a player out of the game. This destroys the connection.
		1104
		1105	=cut
		1106
		1107	sub kick {
		1108	my ($pl, $kicker) = @_;
		1109
		1110	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1111	$pl->killer ("kicked");
		1112	$pl->ns->destroy;
		1113	}
		1114
		1115	=item cf::player::list_logins
		1116
		1117	Returns am arrayref of all valid playernames in the system, can take a
		1118	while and may block, so not sync_job-capable, ever.
		1119
		1120	=cut
		1121
		1122	sub list_logins {
		1123	my $dirs = aio_readdir $PLAYERDIR
		1124	or return [];
		1125
		1126	my @logins;
		1127
		1128	for my $login (@$dirs) {
		1129	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1130	aio_read $fh, 0, 512, my $buf, 0 or next;
		1131	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1132
		1133	utf8::decode $login;
		1134	push @logins, $login;
		1135	}
		1136
		1137	\@logins
		1138	}
		1139
		1140	=item $player->maps
		1141
		1142	Returns an arrayref of map paths that are private for this
		1143	player. May block.
		1144
		1145	=cut
		1146
		1147	sub maps($) {
		1148	my ($pl) = @_;
		1149
		1150	$pl = ref $pl ? $pl->ob->name : $pl;
		1151
		1152	my $files = aio_readdir playerdir $pl
		1153	or return;
		1154
		1155	my @paths;
		1156
		1157	for (@$files) {
		1158	utf8::decode $_;
		1159	next if /\.(?:pl|pst)$/;
		1160	next unless /^$PATH_SEP/o;
		1161
		1162	push @paths, cf::map::normalise "~$pl/$_";
		1163	}
		1164
		1165	\@paths
		1166	}
		1167
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)	1168	=item $player->ext_reply ($msgid, %msg)
1099		1169
1100	Sends an ext reply to the player.	1170	Sends an ext reply to the player.
1101		1171
1102	=cut	1172	=cut
1103		1173
1104	sub cf::player::ext_reply($$$%) {	1174	sub ext_reply($$%) {
1105	my ($self, $id, %msg) = @_;	1175	my ($self, $id, %msg) = @_;
1106		1176
1107	$msg{msgid} = $id;	1177	$msg{msgid} = $id;
1108		1178
1109	$self->send ("ext " . to_json \%msg);	1179	$self->send ("ext " . cf::to_json \%msg);
		1180	}
		1181
		1182	=item $player->ext_event ($type, %msg)
		1183
		1184	Sends an ext event to the client.
		1185
		1186	=cut
		1187
		1188	sub ext_event($$%) {
		1189	my ($self, $type, %msg) = @_;
		1190
		1191	$self->ns->ext_event ($type, %msg);
		1192	}
		1193
		1194	=head3 cf::region
		1195
		1196	=over 4
		1197
		1198	=cut
		1199
		1200	package cf::region;
		1201
		1202	=item cf::region::find_by_path $path
		1203
		1204	Tries to decuce the probable region for a map knowing only its path.
		1205
		1206	=cut
		1207
		1208	sub find_by_path($) {
		1209	my ($path) = @_;
		1210
		1211	my ($match, $specificity);
		1212
		1213	for my $region (list) {
		1214	if ($region->match && $path =~ $region->match) {
		1215	($match, $specificity) = ($region, $region->specificity)
		1216	if $region->specificity > $specificity;
		1217	}
		1218	}
		1219
		1220	$match
1110	}	1221	}
1111		1222
1112	=back	1223	=back
1113
1114		1224
1115	=head3 cf::map	1225	=head3 cf::map
1116		1226
1117	=over 4	1227	=over 4
1118		1228
…		…
1121	package cf::map;	1231	package cf::map;
1122		1232
1123	use Fcntl;	1233	use Fcntl;
1124	use Coro::AIO;	1234	use Coro::AIO;
1125		1235
		1236	use overload
		1237	'""' => \&as_string,
		1238	fallback => 1;
		1239
1126	our $MAX_RESET = 3600;	1240	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1241	our $DEFAULT_RESET = 3000;
1128		1242
1129	sub generate_random_map {	1243	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1244	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1245	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1246	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1247	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1248	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1249	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1250	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1251	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1252	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1253	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1254	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1255	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1256	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1257	(cf::region::find $rmp->{region}), $rmp->{custom}
		1258	)
		1259	}
		1260
		1261	=item cf::map->register ($regex, $prio)
		1262
		1263	Register a handler for the map path matching the given regex at the
		1264	givne priority (higher is better, built-in handlers have priority 0, the
		1265	default).
		1266
		1267	=cut
		1268
		1269	sub register {
		1270	my (undef, $regex, $prio) = @_;
		1271	my $pkg = caller;
		1272
		1273	no strict;
		1274	push @{"$pkg\::ISA"}, __PACKAGE__;
		1275
		1276	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1277	}
		1278
		1279	# also paths starting with '/'
		1280	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1281
		1282	sub thawer_merge {
		1283	my ($self, $merge) = @_;
		1284
		1285	# we have to keep some variables in memory intact
		1286	local $self->{path};
		1287	local $self->{load_path};
		1288	local $self->{deny_save};
		1289	local $self->{deny_reset};
		1290
		1291	$self->SUPER::thawer_merge ($merge);
		1292	}
		1293
		1294	sub normalise {
		1295	my ($path, $base) = @_;
		1296
		1297	$path = "$path"; # make sure its a string
		1298
		1299	$path =~ s/\.map$//;
		1300
		1301	# map plan:
		1302	#
		1303	# /! non-realised random map exit (special hack!)
		1304	# {... are special paths that are not being touched
		1305	# ?xxx/... are special absolute paths
		1306	# ?random/... random maps
		1307	# /... normal maps
		1308	# ~user/... per-player map of a specific user
		1309
		1310	$path =~ s/$PATH_SEP/\//go;
		1311
		1312	# treat it as relative path if it starts with
		1313	# something that looks reasonable
		1314	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1315	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1316
		1317	$base =~ s{[^/]+/?$}{};
		1318	$path = "$base/$path";
		1319	}
		1320
		1321	for ($path) {
		1322	redo if s{//}{/};
		1323	redo if s{/\.?/}{/};
		1324	redo if s{/[^/]+/\.\./}{/};
		1325	}
		1326
		1327	$path
		1328	}
		1329
		1330	sub new_from_path {
		1331	my (undef, $path, $base) = @_;
		1332
		1333	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1334
		1335	$path = normalise $path, $base;
		1336
		1337	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1338	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1339	my $self = bless cf::map::new, $pkg;
		1340	$self->{path} = $path; $self->path ($path);
		1341	$self->init; # pass $1 etc.
		1342	return $self;
		1343	}
		1344	}
		1345
		1346	Carp::carp "unable to resolve path '$path' (base '$base').";
		1347	()
		1348	}
		1349
		1350	sub init {
		1351	my ($self) = @_;
		1352
		1353	$self
		1354	}
		1355
		1356	sub as_string {
		1357	my ($self) = @_;
		1358
		1359	"$self->{path}"
		1360	}
		1361
		1362	# the displayed name, this is a one way mapping
		1363	sub visible_name {
		1364	&as_string
		1365	}
		1366
		1367	# the original (read-only) location
		1368	sub load_path {
		1369	my ($self) = @_;
		1370
		1371	"$MAPDIR/$self->{path}.map"
		1372	}
		1373
		1374	# the temporary/swap location
		1375	sub save_path {
		1376	my ($self) = @_;
		1377
		1378	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1379	"$TMPDIR/$path.map"
		1380	}
		1381
		1382	# the unique path, undef == no special unique path
		1383	sub uniq_path {
		1384	my ($self) = @_;
		1385
		1386	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1387	"$UNIQUEDIR/$path"
1146	}	1388	}
1147		1389
1148	# and all this just because we cannot iterate over	1390	# and all this just because we cannot iterate over
1149	# all maps in C++...	1391	# all maps in C++...
1150	sub change_all_map_light {	1392	sub change_all_map_light {
…		…
1152		1394
1153	$_->change_map_light ($change)	1395	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1396	for grep $_->outdoor, values %cf::MAP;
1155	}	1397	}
1156		1398
		1399	sub unlink_save {
		1400	my ($self) = @_;
		1401
		1402	utf8::encode (my $save = $self->save_path);
		1403	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1404	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1405	}
		1406
1157	sub try_load_header($) {	1407	sub load_header_from($) {
1158	my ($path) = @_;	1408	my ($self, $path) = @_;
1159		1409
1160	utf8::encode $path;	1410	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1411	#aio_open $path, O_RDONLY, 0
		1412	# or return;
		1413
		1414	$self->_load_header ($path)
1162	or return;	1415	or return;
1163		1416
1164	my $map = cf::map::new	1417	$self->{load_path} = $path;
		1418
		1419	1
		1420	}
		1421
		1422	sub load_header_orig {
		1423	my ($self) = @_;
		1424
		1425	$self->load_header_from ($self->load_path)
		1426	}
		1427
		1428	sub load_header_temp {
		1429	my ($self) = @_;
		1430
		1431	$self->load_header_from ($self->save_path)
		1432	}
		1433
		1434	sub prepare_temp {
		1435	my ($self) = @_;
		1436
		1437	$self->last_access ((delete $self->{last_access})
		1438	|| $cf::RUNTIME); #d#
		1439	# safety
		1440	$self->{instantiate_time} = $cf::RUNTIME
		1441	if $self->{instantiate_time} > $cf::RUNTIME;
		1442	}
		1443
		1444	sub prepare_orig {
		1445	my ($self) = @_;
		1446
		1447	$self->{load_original} = 1;
		1448	$self->{instantiate_time} = $cf::RUNTIME;
		1449	$self->last_access ($cf::RUNTIME);
		1450	$self->instantiate;
		1451	}
		1452
		1453	sub load_header {
		1454	my ($self) = @_;
		1455
		1456	if ($self->load_header_temp) {
		1457	$self->prepare_temp;
		1458	} else {
		1459	$self->load_header_orig
1165	or return;	1460	or return;
		1461	$self->prepare_orig;
		1462	}
1166		1463
1167	# for better error messages only, will be overwritten	1464	$self->default_region (cf::region::find_by_path $self->{path})
1168	$map->path ($path);	1465	unless $self->default_region;
1169		1466
1170	$map->load_header ($path)	1467	1
1171	or return;
1172
1173	$map->{load_path} = $path;
1174
1175	$map
1176	}	1468	}
1177		1469
1178	sub find;	1470	sub find;
1179	sub find {	1471	sub find {
1180	my ($path, $origin) = @_;	1472	my ($path, $origin) = @_;
1181		1473
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1474	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1475
1187	cf::lock_wait "map_find:$key";	1476	cf::lock_wait "map_find:$path";
1188		1477
1189	$cf::MAP{$key} || do {	1478	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1479	my $guard = cf::lock_acquire "map_find:$path";
1191		1480	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;	1481	or return;
1211		1482
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;	1483	$map->{last_save} = $cf::RUNTIME;
1224		1484
1225	Coro::cede;	1485	$map->load_header
		1486	or return;
1226		1487
1227	if ($map->should_reset) {	1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1489	# doing this can freeze the server in a sync job, obviously
		1490	#$cf::WAIT_FOR_TICK->wait;
1228	$map->reset;	1491	$map->reset;
1229	undef $guard;	1492	undef $guard;
1230	$map = find $path	1493	return find $path;
1231	or return;
1232	}	1494	}
1233		1495
1234	$cf::MAP{$key} = $map	1496	$cf::MAP{$path} = $map
1235	}	1497	}
1236	}	1498	}
		1499
		1500	sub pre_load { }
		1501	sub post_load { }
1237		1502
1238	sub load {	1503	sub load {
1239	my ($self) = @_;	1504	my ($self) = @_;
1240		1505
		1506	local $self->{deny_reset} = 1; # loading can take a long time
		1507
1241	my $path = $self->{path};	1508	my $path = $self->{path};
		1509
		1510	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1511	my $guard = cf::lock_acquire "map_load:$path";
1243		1512
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1513	return if $self->in_memory != cf::MAP_SWAPPED;
1245		1514
1246	$self->in_memory (cf::MAP_LOADING);	1515	$self->in_memory (cf::MAP_LOADING);
1247		1516
1248	$self->alloc;	1517	$self->alloc;
		1518
		1519	$self->pre_load;
		1520	Coro::cede;
		1521
1249	$self->load_objects ($self->{load_path}, 1)	1522	$self->_load_objects ($self->{load_path}, 1)
1250	or return;	1523	or return;
1251		1524
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1525	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1526	if delete $self->{load_original};
1254		1527
1255	if (my $uniq = $path->uniq_path) {	1528	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1529	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1530	if (aio_open $uniq, O_RDONLY, 0) {
1258	$self->clear_unique_items;	1531	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1532	$self->_load_objects ($uniq, 0);
1260	}	1533	}
1261	}	1534	}
1262		1535
1263	Coro::cede;	1536	Coro::cede;
1264
1265	# now do the right thing for maps	1537	# now do the right thing for maps
1266	$self->link_multipart_objects;	1538	$self->link_multipart_objects;
1267
1268	if ($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)	1539	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	1540	unless $self->difficulty;
		1541	Coro::cede;
		1542
		1543	unless ($self->{deny_activate}) {
		1544	$self->decay_objects;
		1545	$self->fix_auto_apply;
		1546	$self->update_buttons;
		1547	Coro::cede;
		1548	$self->set_darkness_map;
		1549	Coro::cede;
1278	$self->activate;	1550	$self->activate;
1279	}	1551	}
1280		1552
1281	Coro::cede;
1282
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1553	$self->in_memory (cf::MAP_IN_MEMORY);
		1554	}
		1555
		1556	$self->post_load;
		1557	}
		1558
		1559	sub customise_for {
		1560	my ($self, $ob) = @_;
		1561
		1562	return find "~" . $ob->name . "/" . $self->{path}
		1563	if $self->per_player;
		1564
		1565	$self
		1566	}
		1567
		1568	# find and load all maps in the 3x3 area around a map
		1569	sub load_diag {
		1570	my ($map) = @_;
		1571
		1572	my @diag; # diagonal neighbours
		1573
		1574	for (0 .. 3) {
		1575	my $neigh = $map->tile_path ($_)
		1576	or next;
		1577	$neigh = find $neigh, $map
		1578	or next;
		1579	$neigh->load;
		1580
		1581	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1582	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1583	}
		1584
		1585	for (@diag) {
		1586	my $neigh = find @$_
		1587	or next;
		1588	$neigh->load;
		1589	}
1284	}	1590	}
1285		1591
1286	sub find_sync {	1592	sub find_sync {
1287	my ($path, $origin) = @_;	1593	my ($path, $origin) = @_;
1288		1594
1289	cf::sync_job { cf::map::find $path, $origin }	1595	cf::sync_job { find $path, $origin }
1290	}	1596	}
1291		1597
1292	sub do_load_sync {	1598	sub do_load_sync {
1293	my ($map) = @_;	1599	my ($map) = @_;
1294		1600
1295	cf::sync_job { $map->load };	1601	cf::sync_job { $map->load };
1296	}	1602	}
1297		1603
		1604	our %MAP_PREFETCH;
		1605	our $MAP_PREFETCHER = undef;
		1606
		1607	sub find_async {
		1608	my ($path, $origin) = @_;
		1609
		1610	$path = normalise $path, $origin && $origin->{path};
		1611
		1612	if (my $map = $cf::MAP{$path}) {
		1613	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1614	}
		1615
		1616	undef $MAP_PREFETCH{$path};
		1617	$MAP_PREFETCHER ||= cf::async {
		1618	while (%MAP_PREFETCH) {
		1619	for my $path (keys %MAP_PREFETCH) {
		1620	my $map = find $path
		1621	or next;
		1622	$map->load;
		1623
		1624	delete $MAP_PREFETCH{$path};
		1625	}
		1626	}
		1627	undef $MAP_PREFETCHER;
		1628	};
		1629	$MAP_PREFETCHER->prio (6);
		1630
		1631	()
		1632	}
		1633
1298	sub save {	1634	sub save {
1299	my ($self) = @_;	1635	my ($self) = @_;
1300		1636
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	1637	my $lock = cf::lock_acquire "map_data:" . $self->path;
1302		1638
1303	$self->{last_save} = $cf::RUNTIME;	1639	$self->{last_save} = $cf::RUNTIME;
1304		1640
1305	return unless $self->dirty;	1641	return unless $self->dirty;
1306		1642
1307	my $save = $self->{path}->save_path; utf8::encode $save;	1643	my $save = $self->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1644	my $uniq = $self->uniq_path; utf8::encode $uniq;
1309		1645
1310	$self->{load_path} = $save;	1646	$self->{load_path} = $save;
1311		1647
1312	return if $self->{deny_save};	1648	return if $self->{deny_save};
1313		1649
1314	local $self->{last_access} = $self->last_access;#d#	1650	local $self->{last_access} = $self->last_access;#d#
1315		1651
		1652	cf::async {
		1653	$_->contr->save for $self->players;
		1654	};
		1655
1316	if ($uniq) {	1656	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1657	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	1658	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	1659	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1660	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	1661	}
1322	}	1662	}
1323		1663
1324	sub swap_out {	1664	sub swap_out {
1325	my ($self) = @_;	1665	my ($self) = @_;
…		…
1339		1679
1340	sub reset_at {	1680	sub reset_at {
1341	my ($self) = @_;	1681	my ($self) = @_;
1342		1682
1343	# TODO: safety, remove and allow resettable per-player maps	1683	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};	1684	return 1e99 if $self->isa ("ext::map_per_player");#d#
1345	return 1e99 if $self->{deny_reset};	1685	return 1e99 if $self->{deny_reset};
1346		1686
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		1689
…		…
1354	my ($self) = @_;	1694	my ($self) = @_;
1355		1695
1356	$self->reset_at <= $cf::RUNTIME	1696	$self->reset_at <= $cf::RUNTIME
1357	}	1697	}
1358		1698
1359	sub unlink_save {
1360	my ($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	$self->save;
1378	}
1379
1380	sub reset {	1699	sub reset {
1381	my ($self) = @_;	1700	my ($self) = @_;
1382		1701
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	1702	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		1703
1385	return if $self->players;	1704	return if $self->players;
1386	return if $self->{path}{user_rel};#d#	1705	return if $self->isa ("ext::map_per_player");#d#
1387		1706
1388	warn "resetting map ", $self->path;#d#	1707	warn "resetting map ", $self->path;#d#
1389		1708
		1709	$self->in_memory (cf::MAP_SWAPPED);
		1710
		1711	# need to save uniques path
		1712	unless ($self->{deny_save}) {
		1713	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1714
		1715	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1716	if $uniq;
		1717	}
		1718
1390	delete $cf::MAP{$self->path};	1719	delete $cf::MAP{$self->path};
		1720
		1721	$self->clear;
1391		1722
1392	$_->clear_links_to ($self) for values %cf::MAP;	1723	$_->clear_links_to ($self) for values %cf::MAP;
1393		1724
1394	$self->unlink_save;	1725	$self->unlink_save;
1395	$self->destroy;	1726	$self->destroy;
…		…
1398	my $nuke_counter = "aaaa";	1729	my $nuke_counter = "aaaa";
1399		1730
1400	sub nuke {	1731	sub nuke {
1401	my ($self) = @_;	1732	my ($self) = @_;
1402		1733
		1734	delete $cf::MAP{$self->path};
		1735
		1736	$self->unlink_save;
		1737
		1738	bless $self, "cf::map";
		1739	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	1740	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	1741	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	1742	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1743
		1744	$cf::MAP{$self->path} = $self;
		1745
1406	$self->reset; # polite request, might not happen	1746	$self->reset; # polite request, might not happen
1407	}	1747	}
1408		1748
1409	sub customise_for {	1749	=item cf::map::unique_maps
1410	my ($map, $ob) = @_;
1411		1750
1412	if ($map->per_player) {	1751	Returns an arrayref of paths of all shared maps that have
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1752	instantiated unique items. May block.
1414	}
1415		1753
1416	$map	1754	=cut
1417	}
1418		1755
1419	sub emergency_save {	1756	sub unique_maps() {
1420	my $freeze_guard = cf::freeze_mainloop;	1757	my $files = aio_readdir $UNIQUEDIR
		1758	or return;
1421		1759
1422	warn "enter emergency map save\n";	1760	my @paths;
1423		1761
1424	cf::sync_job {	1762	for (@$files) {
1425	warn "begin emergency map save\n";	1763	utf8::decode $_;
1426	$_->save for values %cf::MAP;	1764	next if /\.pst$/;
		1765	next unless /^$PATH_SEP/o;
		1766
		1767	push @paths, cf::map::normalise $_;
1427	};	1768	}
1428		1769
1429	warn "end emergency map save\n";	1770	\@paths
1430	}	1771	}
1431		1772
1432	package cf;	1773	package cf;
1433		1774
1434	=back	1775	=back
1435		1776
		1777	=head3 cf::object
		1778
		1779	=cut
		1780
		1781	package cf::object;
		1782
		1783	=over 4
		1784
		1785	=item $ob->inv_recursive
		1786
		1787	Returns the inventory of the object _and_ their inventories, recursively.
		1788
		1789	=cut
		1790
		1791	sub inv_recursive_;
		1792	sub inv_recursive_ {
		1793	map { $_, inv_recursive_ $_->inv } @_
		1794	}
		1795
		1796	sub inv_recursive {
		1797	inv_recursive_ inv $_[0]
		1798	}
		1799
		1800	package cf;
		1801
		1802	=back
1436		1803
1437	=head3 cf::object::player	1804	=head3 cf::object::player
1438		1805
1439	=over 4	1806	=over 4
1440		1807
…		…
1480		1847
1481	=item $player_object->enter_link	1848	=item $player_object->enter_link
1482		1849
1483	Freezes the player and moves him/her to a special map (C<{link}>).	1850	Freezes the player and moves him/her to a special map (C<{link}>).
1484		1851
1485	The player should be reaosnably safe there for short amounts of time. You	1852	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.	1853	I<MUST> call C<leave_link> as soon as possible, though.
1487		1854
		1855	Will never block.
		1856
1488	=item $player_object->leave_link ($map, $x, $y)	1857	=item $player_object->leave_link ($map, $x, $y)
1489		1858
1490	Moves the player out of the specila link map onto the given map. If the	1859	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	1860	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	1861	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	1862	fails, to the emergency map position.
1494		1863
1495	Might block.	1864	Might block.
1496		1865
1497	=cut	1866	=cut
		1867
		1868	sub link_map {
		1869	unless ($LINK_MAP) {
		1870	$LINK_MAP = cf::map::find "{link}"
		1871	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1872	$LINK_MAP->load;
		1873	}
		1874
		1875	$LINK_MAP
		1876	}
1498		1877
1499	sub cf::object::player::enter_link {	1878	sub cf::object::player::enter_link {
1500	my ($self) = @_;	1879	my ($self) = @_;
1501		1880
1502	$self->deactivate_recursive;	1881	$self->deactivate_recursive;
1503		1882
1504	return if $self->map == $LINK_MAP;	1883	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		1884
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1885	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	1886	if $self->map;
1508		1887
1509	$self->enter_map ($LINK_MAP, 20, 20);	1888	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1510	}	1889	}
1511		1890
1512	sub cf::object::player::leave_link {	1891	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	1892	my ($self, $map, $x, $y) = @_;
1514		1893
…		…
1532	# use -1 or undef as default coordinates, not 0, 0	1911	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	1912	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	1913	if $x <=0 && $y <= 0;
1535		1914
1536	$map->load;	1915	$map->load;
		1916	$map->load_diag;
1537		1917
		1918	return unless $self->contr->active;
1538	$self->activate_recursive;	1919	$self->activate_recursive;
		1920
		1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1539	$self->enter_map ($map, $x, $y);	1922	$self->enter_map ($map, $x, $y);
1540	}	1923	}
1541		1924
1542	cf::player->attach (	1925	cf::player->attach (
1543	on_logout => sub {	1926	on_logout => sub {
…		…
1555		1938
1556	# try to abort aborted map switching on player login :)	1939	# try to abort aborted map switching on player login :)
1557	# should happen only on crashes	1940	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {	1941	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;	1942	$pl->ob->enter_link;
1560	cf::async {	1943	(async {
		1944	$pl->ob->reply (undef,
		1945	"There was an internal problem at your last logout, "
		1946	. "the server will try to bring you to your intended destination in a second.",
		1947	cf::NDI_RED);
1561	# we need this sleep as the login has a concurrent enter_exit running	1948	# 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	1949	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;	1950	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;	1951	$pl->ob->leave_link;
1565	};	1952	})->prio (2);
1566	}	1953	}
1567	},	1954	},
1568	);	1955	);
1569		1956
1570	=item $player_object->goto ($path, $x, $y)	1957	=item $player_object->goto ($path, $x, $y)
…		…
1574	sub cf::object::player::goto {	1961	sub cf::object::player::goto {
1575	my ($self, $path, $x, $y) = @_;	1962	my ($self, $path, $x, $y) = @_;
1576		1963
1577	$self->enter_link;	1964	$self->enter_link;
1578		1965
1579	(cf::async {	1966	(async {
1580	$path = new cf::path $path;	1967	my $map = eval {
1581
1582	my $map = cf::map::find $path->as_string;	1968	my $map = cf::map::find $path;
1583	$map = $map->customise_for ($self) if $map;	1969	$map = $map->customise_for ($self) if $map;
1584		1970	$map
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	1971	} or
1586	# if $map;
1587
1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1589		1973
1590	$self->leave_link ($map, $x, $y);	1974	$self->leave_link ($map, $x, $y);
1591	})->prio (1);	1975	})->prio (1);
1592	}	1976	}
1593		1977
…		…
1597		1981
1598	sub parse_random_map_params {	1982	sub parse_random_map_params {
1599	my ($spec) = @_;	1983	my ($spec) = @_;
1600		1984
1601	my $rmp = { # defaults	1985	my $rmp = { # defaults
1602	xsize => 10,	1986	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	1987	ysize => (cf::rndm 15, 40),
		1988	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1989	#layout => string,
1604	};	1990	};
1605		1991
1606	for (split /\n/, $spec) {	1992	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	1993	my ($k, $v) = split /\s+/, $_, 2;
1608		1994
…		…
1612	$rmp	1998	$rmp
1613	}	1999	}
1614		2000
1615	sub prepare_random_map {	2001	sub prepare_random_map {
1616	my ($exit) = @_;	2002	my ($exit) = @_;
		2003
		2004	my $guard = cf::lock_acquire "exit_prepare:$exit";
1617		2005
1618	# all this does is basically replace the /! path by	2006	# all this does is basically replace the /! path by
1619	# a new random map path (?random/...) with a seed	2007	# a new random map path (?random/...) with a seed
1620	# that depends on the exit object	2008	# that depends on the exit object
1621		2009
1622	my $rmp = parse_random_map_params $exit->msg;	2010	my $rmp = parse_random_map_params $exit->msg;
1623		2011
1624	if ($exit->map) {	2012	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2013	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2014	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2015	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2016	$rmp->{origin_y} = $exit->y;
1629	}	2017	}
1630		2018
1631	$rmp->{random_seed} ||= $exit->random_seed;	2019	$rmp->{random_seed} ||= $exit->random_seed;
1632		2020
1633	my $data = cf::to_json $rmp;	2021	my $data = cf::to_json $rmp;
1634	my $md5 = Digest::MD5::md5_hex $data;	2022	my $md5 = Digest::MD5::md5_hex $data;
		2023	my $meta = "$RANDOMDIR/$md5.meta";
1635		2024
1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2025	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1637	aio_write $fh, 0, (length $data), $data, 0;	2026	aio_write $fh, 0, (length $data), $data, 0;
		2027	undef $fh;
		2028	aio_rename "$meta~", $meta;
1638		2029
1639	$exit->slaying ("?random/$md5");	2030	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2031	$exit->msg (undef);
1641	}	2032	}
1642	}	2033	}
…		…
1644	sub cf::object::player::enter_exit {	2035	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2036	my ($self, $exit) = @_;
1646		2037
1647	return unless $self->type == cf::PLAYER;	2038	return unless $self->type == cf::PLAYER;
1648		2039
		2040	if ($exit->slaying eq "/!") {
		2041	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2042	# the problem is that $exit might not survive long enough
		2043	# so it needs to be done right now, right here
		2044	cf::sync_job { prepare_random_map $exit };
		2045	}
		2046
		2047	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2048	my $hp = $exit->stats->hp;
		2049	my $sp = $exit->stats->sp;
		2050
1649	$self->enter_link;	2051	$self->enter_link;
1650		2052
1651	(cf::async {	2053	(async {
1652	$self->deactivate_recursive; # just to be sure	2054	$self->deactivate_recursive; # just to be sure
1653	unless (eval {	2055	unless (eval {
1654	prepare_random_map $exit	2056	$self->goto ($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		2057
1660	1;	2058	1;
1661	}) {	2059	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2060	$self->message ("Something went wrong deep within the crossfire server. "
1663	. "I'll try to bring you back to the map you were before. "	2061	. "I'll try to bring you back to the map you were before. "
1664	. "Please report this to the dungeon master",	2062	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2063	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2064
1667	warn "ERROR in enter_exit: $@";	2065	warn "ERROR in enter_exit: $@";
1668	$self->leave_link;	2066	$self->leave_link;
1669	}	2067	}
1670	})->prio (1);	2068	})->prio (1);
…		…
1683		2081
1684	sub cf::client::send_drawinfo {	2082	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2083	my ($self, $text, $flags) = @_;
1686		2084
1687	utf8::encode $text;	2085	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2086	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2087	}
1690		2088
		2089	=item $client->ext_event ($type, %msg)
		2090
		2091	Sends an exti event to the client.
		2092
		2093	=cut
		2094
		2095	sub cf::client::ext_event($$%) {
		2096	my ($self, $type, %msg) = @_;
		2097
		2098	$msg{msgtype} = "event_$type";
		2099	$self->send_packet ("ext " . cf::to_json \%msg);
		2100	}
1691		2101
1692	=item $success = $client->query ($flags, "text", \&cb)	2102	=item $success = $client->query ($flags, "text", \&cb)
1693		2103
1694	Queues a query to the client, calling the given callback with	2104	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>,	2105	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1724	# get handled first	2134	# get handled first
1725	my $queue = delete $ns->{query_queue}	2135	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	2136	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		2137
1728	(shift @$queue)->[1]->($msg);	2138	(shift @$queue)->[1]->($msg);
		2139	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		2140
1730	push @{ $ns->{query_queue} }, @$queue;	2141	push @{ $ns->{query_queue} }, @$queue;
1731		2142
1732	if (@{ $ns->{query_queue} } == @$queue) {	2143	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	2144	if (@$queue) {
…		…
1737	}	2148	}
1738	}	2149	}
1739	},	2150	},
1740	);	2151	);
1741		2152
1742	=item $client->coro (\&cb)	2153	=item $client->async (\&cb)
1743		2154
1744	Create a new coroutine, running the specified callback. The coroutine will	2155	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	2156	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	2157	or loss of connection).
1747		2158
1748	=cut	2159	=cut
1749		2160
1750	sub cf::client::coro {	2161	sub cf::client::async {
1751	my ($self, $cb) = @_;	2162	my ($self, $cb) = @_;
1752		2163
1753	my $coro = &cf::async ($cb);	2164	my $coro = &Coro::async ($cb);
1754		2165
1755	$coro->on_destroy (sub {	2166	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	2167	delete $self->{_coro}{$coro+0};
1757	});	2168	});
1758		2169
…		…
1791		2202
1792	# here we export the classes and methods available to script code	2203	# here we export the classes and methods available to script code
1793		2204
1794	=pod	2205	=pod
1795		2206
1796	The following fucntions and emthods are available within a safe environment:	2207	The following functions and methods are available within a safe environment:
1797		2208
1798	cf::object contr pay_amount pay_player map	2209	cf::object contr pay_amount pay_player map
1799	cf::object::player player	2210	cf::object::player player
1800	cf::player peaceful	2211	cf::player peaceful
1801	cf::map trigger	2212	cf::map trigger
…		…
1886	#############################################################################	2297	#############################################################################
1887		2298
1888	=head2 EXTENSION DATABASE SUPPORT	2299	=head2 EXTENSION DATABASE SUPPORT
1889		2300
1890	Crossfire maintains a very simple database for extension use. It can	2301	Crossfire maintains a very simple database for extension use. It can
1891	currently store anything that can be serialised using Storable, which	2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1892	excludes objects.	2303	convert to/from binary).
1893		2304
1894	The parameter C<$family> should best start with the name of the extension	2305	The parameter C<$family> should best start with the name of the extension
1895	using it, it should be unique.	2306	using it, it should be unique.
1896		2307
1897	=over 4	2308	=over 4
1898		2309
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	2310	=item $value = cf::db_get $family => $key
1906		2311
1907	Returns a single value from the database	2312	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		2313
1914	=item cf::db_put $family => $key => $value	2314	=item cf::db_put $family => $key => $value
1915		2315
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you	2316	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		2317
1927	=cut	2318	=cut
1928		2319
1929	our $DB;	2320	our $DB;
1930		2321
1931	{	2322	sub db_init {
1932	my $path = cf::localdir . "/database.pst";	2323	unless ($DB) {
		2324	$DB = BDB::db_create $DB_ENV;
1933		2325
1934	sub db_load() {	2326	cf::sync_job {
1935	$DB = stat $path ? Storable::retrieve $path : { };	2327	eval {
1936	}	2328	$DB->set_flags (BDB::CHKSUM);
1937		2329
1938	my $pid;	2330	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1939		2331	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1940	sub db_save() {	2332	cf::cleanup "db_open(db): $!" if $!;
1941	waitpid $pid, 0 if $pid;	2333	};
1942	if (0 == ($pid = fork)) {	2334	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	}	2335	};
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	});	2336	}
		2337	}
1960		2338
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}
1965
1966	sub db_get($;$) {	2339	sub db_get($$) {
1967	@_ >= 2	2340	my $key = "$_[0]/$_[1]";
1968	? $DB->{$_[0]}{$_[1]}
1969	: ($DB->{$_[0]} ||= { })
1970	}
1971		2341
		2342	cf::sync_job {
		2343	BDB::db_get $DB, undef, $key, my $data;
		2344
		2345	$! ? ()
		2346	: $data
		2347	}
		2348	}
		2349
1972	sub db_put($$;$) {	2350	sub db_put($$$) {
1973	if (@_ >= 3) {	2351	BDB::dbreq_pri 4;
1974	$DB->{$_[0]}{$_[1]} = $_[2];	2352	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1975	} else {	2353	}
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980		2354
1981	cf::global->attach (	2355	=item cf::cache $id => [$paths...], $processversion => $process
1982	prio => 10000,	2356
1983	on_cleanup => sub {	2357	Generic caching function that returns the value of the resource $id,
1984	db_sync;	2358	caching and regenerating as required.
		2359
		2360	This function can block.
		2361
		2362	=cut
		2363
		2364	sub cache {
		2365	my ($id, $src, $processversion, $process) = @_;
		2366
		2367	my $meta =
		2368	join "\x00",
		2369	$processversion,
		2370	map {
		2371	aio_stat $_
		2372	and Carp::croak "$_: $!";
		2373
		2374	($_, (stat _)[7,9])
		2375	} @$src;
		2376
		2377	my $dbmeta = db_get cache => "$id/meta";
		2378	if ($dbmeta ne $meta) {
		2379	# changed, we may need to process
		2380
		2381	my @data;
		2382	my $md5;
		2383
		2384	for (0 .. $#$src) {
		2385	0 <= aio_load $src->[$_], $data[$_]
		2386	or Carp::croak "$src->[$_]: $!";
1985	},	2387	}
1986	);	2388
		2389	# if processing is expensive, check
		2390	# checksum first
		2391	if (1) {
		2392	$md5 =
		2393	join "\x00",
		2394	$processversion,
		2395	map {
		2396	Coro::cede;
		2397	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2398	} 0.. $#$src;
		2399
		2400
		2401	my $dbmd5 = db_get cache => "$id/md5";
		2402	if ($dbmd5 eq $md5) {
		2403	db_put cache => "$id/meta", $meta;
		2404
		2405	return db_get cache => "$id/data";
		2406	}
		2407	}
		2408
		2409	my $t1 = Time::HiRes::time;
		2410	my $data = $process->(\@data);
		2411	my $t2 = Time::HiRes::time;
		2412
		2413	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2414
		2415	db_put cache => "$id/data", $data;
		2416	db_put cache => "$id/md5" , $md5;
		2417	db_put cache => "$id/meta", $meta;
		2418
		2419	return $data;
		2420	}
		2421
		2422	db_get cache => "$id/data"
1987	}	2423	}
		2424
		2425	=item fork_call { }, $args
		2426
		2427	Executes the given code block with the given arguments in a seperate
		2428	process, returning the results. Everything must be serialisable with
		2429	Coro::Storable. May, of course, block. Note that the executed sub may
		2430	never block itself or use any form of Event handling.
		2431
		2432	=cut
		2433
		2434	sub fork_call(&@) {
		2435	my ($cb, @args) = @_;
		2436
		2437	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2438	# or die "socketpair: $!";
		2439	pipe my $fh1, my $fh2
		2440	or die "pipe: $!";
		2441
		2442	if (my $pid = fork) {
		2443	close $fh2;
		2444
		2445	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2446	$res = Coro::Storable::thaw $res;
		2447
		2448	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2449
		2450	die $$res unless "ARRAY" eq ref $res;
		2451
		2452	return wantarray ? @$res : $res->[-1];
		2453	} else {
		2454	reset_signals;
		2455	local $SIG{__WARN__};
		2456	local $SIG{__DIE__};
		2457	eval {
		2458	close $fh1;
		2459
		2460	my @res = eval { $cb->(@args) };
		2461	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2462	};
		2463
		2464	warn $@ if $@;
		2465	_exit 0;
		2466	}
		2467	}
		2468
		2469
1988		2470
1989	#############################################################################	2471	#############################################################################
1990	# the server's main()	2472	# the server's init and main functions
		2473
		2474	sub load_facedata($) {
		2475	my ($path) = @_;
		2476
		2477	warn "loading facedata from $path\n";
		2478
		2479	my $facedata;
		2480	0 < aio_load $path, $facedata
		2481	or die "$path: $!";
		2482
		2483	$facedata = Coro::Storable::thaw $facedata;
		2484
		2485	$facedata->{version} == 2
		2486	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2487
		2488	{
		2489	my $faces = $facedata->{faceinfo};
		2490
		2491	while (my ($face, $info) = each %$faces) {
		2492	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2493	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2494	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2495	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2496	Coro::cede;
		2497	}
		2498
		2499	while (my ($face, $info) = each %$faces) {
		2500	next unless $info->{smooth};
		2501	my $idx = cf::face::find $face
		2502	or next;
		2503	if (my $smooth = cf::face::find $info->{smooth}) {
		2504	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2505	} else {
		2506	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2507	}
		2508	Coro::cede;
		2509	}
		2510	}
		2511
		2512	{
		2513	my $anims = $facedata->{animinfo};
		2514
		2515	while (my ($anim, $info) = each %$anims) {
		2516	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2517	Coro::cede;
		2518	}
		2519
		2520	cf::anim::invalidate_all; # d'oh
		2521	}
		2522
		2523	1
		2524	}
		2525
		2526	sub reload_regions {
		2527	load_resource_file "$MAPDIR/regions"
		2528	or die "unable to load regions file\n";
		2529	}
		2530
		2531	sub reload_facedata {
		2532	load_facedata "$DATADIR/facedata"
		2533	or die "unable to load facedata\n";
		2534	}
		2535
		2536	sub reload_archetypes {
		2537	load_resource_file "$DATADIR/archetypes"
		2538	or die "unable to load archetypes\n";
		2539	}
		2540
		2541	sub reload_treasures {
		2542	load_resource_file "$DATADIR/treasures"
		2543	or die "unable to load treasurelists\n";
		2544	}
		2545
		2546	sub reload_resources {
		2547	warn "reloading resource files...\n";
		2548
		2549	reload_regions;
		2550	reload_facedata;
		2551	reload_archetypes;
		2552	reload_treasures;
		2553
		2554	warn "finished reloading resource files\n";
		2555	}
		2556
		2557	sub init {
		2558	reload_resources;
		2559	}
1991		2560
1992	sub cfg_load {	2561	sub cfg_load {
1993	open my $fh, "<:utf8", cf::confdir . "/config"	2562	open my $fh, "<:utf8", "$CONFDIR/config"
1994	or return;	2563	or return;
1995		2564
1996	local $/;	2565	local $/;
1997	*CFG = YAML::Syck::Load <$fh>;	2566	*CFG = YAML::Syck::Load <$fh>;
1998		2567
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2568	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2000		2569
		2570	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2571	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2572
2001	if (exists $CFG{mlockall}) {	2573	if (exists $CFG{mlockall}) {
2002	eval {	2574	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	2575	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	2576	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	2577	};
2006	warn $@ if $@;	2578	warn $@ if $@;
2007	}	2579	}
2008	}	2580	}
2009		2581
2010	sub main {	2582	sub main {
2011	# we must not ever block the main coroutine	2583	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	2584	local $Coro::idle = sub {
2013	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2585	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2014	(Coro::unblock_sub {	2586	(async {
2015	Event::one_event;	2587	Event::one_event;
2016	})->();	2588	})->prio (Coro::PRIO_MAX);
2017	};	2589	};
2018		2590
2019	cfg_load;	2591	cfg_load;
2020	db_load;	2592	db_init;
2021	load_extensions;	2593	load_extensions;
		2594
		2595	$TICK_WATCHER->start;
2022	Event::loop;	2596	Event::loop;
2023	}	2597	}
2024		2598
2025	#############################################################################	2599	#############################################################################
2026	# initialisation	2600	# initialisation and cleanup
2027		2601
		2602	# install some emergency cleanup handlers
		2603	BEGIN {
		2604	for my $signal (qw(INT HUP TERM)) {
		2605	Event->signal (
		2606	reentrant => 0,
		2607	data => WF_AUTOCANCEL,
		2608	signal => $signal,
		2609	prio => 0,
		2610	cb => sub {
		2611	cf::cleanup "SIG$signal";
		2612	},
		2613	);
		2614	}
		2615	}
		2616
		2617	sub emergency_save() {
		2618	my $freeze_guard = cf::freeze_mainloop;
		2619
		2620	warn "enter emergency perl save\n";
		2621
		2622	cf::sync_job {
		2623	# use a peculiar iteration method to avoid tripping on perl
		2624	# refcount bugs in for. also avoids problems with players
		2625	# and maps saved/destroyed asynchronously.
		2626	warn "begin emergency player save\n";
		2627	for my $login (keys %cf::PLAYER) {
		2628	my $pl = $cf::PLAYER{$login} or next;
		2629	$pl->valid or next;
		2630	$pl->save;
		2631	}
		2632	warn "end emergency player save\n";
		2633
		2634	warn "begin emergency map save\n";
		2635	for my $path (keys %cf::MAP) {
		2636	my $map = $cf::MAP{$path} or next;
		2637	$map->valid or next;
		2638	$map->save;
		2639	}
		2640	warn "end emergency map save\n";
		2641
		2642	warn "begin emergency database checkpoint\n";
		2643	BDB::db_env_txn_checkpoint $DB_ENV;
		2644	warn "end emergency database checkpoint\n";
		2645	};
		2646
		2647	warn "leave emergency perl save\n";
		2648	}
		2649
		2650	sub post_cleanup {
		2651	my ($make_core) = @_;
		2652
		2653	warn Carp::longmess "post_cleanup backtrace"
		2654	if $make_core;
		2655	}
		2656
2028	sub reload() {	2657	sub do_reload_perl() {
2029	# can/must only be called in main	2658	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	2659	if ($Coro::current != $Coro::main) {
2031	warn "can only reload from main coroutine\n";	2660	warn "can only reload from main coroutine";
2032	return;	2661	return;
2033	}	2662	}
2034		2663
2035	warn "reloading...";	2664	warn "reloading...";
2036		2665
2037	my $guard = freeze_mainloop;	2666	warn "entering sync_job";
		2667
		2668	cf::sync_job {
		2669	cf::write_runtime; # external watchdog should not bark
2038	cf::emergency_save;	2670	cf::emergency_save;
		2671	cf::write_runtime; # external watchdog should not bark
2039		2672
2040	eval {	2673	warn "syncing database to disk";
		2674	BDB::db_env_txn_checkpoint $DB_ENV;
		2675
2041	# if anything goes wrong in here, we should simply crash as we already saved	2676	# if anything goes wrong in here, we should simply crash as we already saved
2042		2677
2043	# cancel all watchers	2678	warn "cancelling all WF_AUTOCANCEL watchers";
2044	for (Event::all_watchers) {	2679	for (Event::all_watchers) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;	2680	$_->cancel if $_->data & WF_AUTOCANCEL;
2046	}	2681	}
2047		2682
		2683	warn "flushing outstanding aio requests";
		2684	for (;;) {
		2685	BDB::flush;
		2686	IO::AIO::flush;
		2687	Coro::cede;
		2688	last unless IO::AIO::nreqs || BDB::nreqs;
		2689	warn "iterate...";
		2690	}
		2691
		2692	++$RELOAD;
		2693
2048	# cancel all extension coros	2694	warn "cancelling all extension coros";
2049	$_->cancel for values %EXT_CORO;	2695	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	2696	%EXT_CORO = ();
2051		2697
2052	# unload all extensions	2698	warn "removing commands";
2053	for (@exts) {	2699	%COMMAND = ();
		2700
		2701	warn "removing ext commands";
		2702	%EXTCMD = ();
		2703
		2704	warn "unloading/nuking all extensions";
		2705	for my $pkg (@EXTS) {
2054	warn "unloading <$_>";	2706	warn "... unloading $pkg";
2055	unload_extension $_;	2707
		2708	if (my $cb = $pkg->can ("unload")) {
		2709	eval {
		2710	$cb->($pkg);
		2711	1
		2712	} or warn "$pkg unloaded, but with errors: $@";
2056	}	2713	}
2057		2714
		2715	warn "... nuking $pkg";
		2716	Symbol::delete_package $pkg;
		2717	}
		2718
2058	# unload all modules loaded from $LIBDIR	2719	warn "unloading all perl modules loaded from $LIBDIR";
2059	while (my ($k, $v) = each %INC) {	2720	while (my ($k, $v) = each %INC) {
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2721	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061		2722
2062	warn "removing <$k>";	2723	warn "... unloading $k";
2063	delete $INC{$k};	2724	delete $INC{$k};
2064		2725
2065	$k =~ s/\.pm$//;	2726	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;	2727	$k =~ s/\//::/g;
2067		2728
…		…
2070	}	2731	}
2071		2732
2072	Symbol::delete_package $k;	2733	Symbol::delete_package $k;
2073	}	2734	}
2074		2735
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	2736	warn "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	2737	Symbol::delete_package "safe::$_"
2081	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2738	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2082		2739
2083	# remove register_script_function callbacks
2084	# TODO
2085
2086	# unload cf.pm "a bit"	2740	warn "unloading cf.pm \"a bit\"";
2087	delete $INC{"cf.pm"};	2741	delete $INC{"cf.pm"};
		2742	delete $INC{"cf/pod.pm"};
2088		2743
2089	# don't, removes xs symbols, too,	2744	# don't, removes xs symbols, too,
2090	# and global variables created in xs	2745	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	2746	#Symbol::delete_package __PACKAGE__;
2092		2747
2093	# reload cf.pm	2748	warn "unload completed, starting to reload now";
		2749
2094	warn "reloading cf.pm";	2750	warn "reloading cf.pm";
2095	require cf;	2751	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2097		2753
2098	# load config and database again	2754	warn "loading config and database again";
2099	cf::cfg_load;	2755	cf::cfg_load;
2100	cf::db_load;
2101		2756
2102	# load extensions
2103	warn "load extensions";	2757	warn "loading extensions";
2104	cf::load_extensions;	2758	cf::load_extensions;
2105		2759
2106	# reattach attachments to objects	2760	warn "reattaching attachments to objects/players";
2107	warn "reattach";	2761	_global_reattach; # objects, sockets
2108	_global_reattach;	2762	warn "reattaching attachments to maps";
2109	};	2763	reattach $_ for values %MAP;
		2764	warn "reattaching attachments to players";
		2765	reattach $_ for values %PLAYER;
2110		2766
2111	if ($@) {	2767	warn "leaving sync_job";
		2768
		2769	1
		2770	} or do {
2112	warn $@;	2771	warn $@;
2113	warn "error while reloading, exiting.";	2772	warn "error while reloading, exiting.";
2114	exit 1;	2773	exit 1;
2115	}	2774	};
2116		2775
2117	warn "reloaded successfully";	2776	warn "reloaded";
2118	};	2777	};
2119		2778
2120	#############################################################################	2779	our $RELOAD_WATCHER; # used only during reload
2121		2780
2122	unless ($LINK_MAP) {	2781	sub reload_perl() {
2123	$LINK_MAP = cf::map::new;	2782	# doing reload synchronously and two reloads happen back-to-back,
		2783	# coro crashes during coro_state_free->destroy here.
2124		2784
2125	$LINK_MAP->width (41);	2785	$RELOAD_WATCHER ||= Event->timer (
2126	$LINK_MAP->height (41);	2786	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,	2787	after => 0,
		2788	data => WF_AUTOCANCEL,
2135	cb => sub {	2789	cb => sub {
2136	$_[0]->w->cancel;	2790	do_reload_perl;
2137		2791	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	});	2792	},
2156		2793	);
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	2794	}
2162
2163	register "<global>", __PACKAGE__;
2164		2795
2165	register_command "reload" => sub {	2796	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	2797	my ($who, $arg) = @_;
2167		2798
2168	if ($who->flag (FLAG_WIZ)) {	2799	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	2800	$who->message ("reloading server.");
		2801	async { reload_perl };
2172	}	2802	}
2173	};	2803	};
2174		2804
2175	unshift @INC, $LIBDIR;	2805	unshift @INC, $LIBDIR;
		2806
		2807	my $bug_warning = 0;
		2808
		2809	our @WAIT_FOR_TICK;
		2810	our @WAIT_FOR_TICK_BEGIN;
		2811
		2812	sub wait_for_tick {
		2813	return unless $TICK_WATCHER->is_active;
		2814	return if $Coro::current == $Coro::main;
		2815
		2816	my $signal = new Coro::Signal;
		2817	push @WAIT_FOR_TICK, $signal;
		2818	$signal->wait;
		2819	}
		2820
		2821	sub wait_for_tick_begin {
		2822	return unless $TICK_WATCHER->is_active;
		2823	return if $Coro::current == $Coro::main;
		2824
		2825	my $signal = new Coro::Signal;
		2826	push @WAIT_FOR_TICK_BEGIN, $signal;
		2827	$signal->wait;
		2828	}
2176		2829
2177	$TICK_WATCHER = Event->timer (	2830	$TICK_WATCHER = Event->timer (
2178	reentrant => 0,	2831	reentrant => 0,
		2832	parked => 1,
2179	prio => 0,	2833	prio => 0,
2180	at => $NEXT_TICK || $TICK,	2834	at => $NEXT_TICK || $TICK,
2181	data => WF_AUTOCANCEL,	2835	data => WF_AUTOCANCEL,
2182	cb => sub {	2836	cb => sub {
		2837	if ($Coro::current != $Coro::main) {
		2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2839	unless ++$bug_warning > 10;
		2840	return;
		2841	}
		2842
		2843	$NOW = Event::time;
		2844
2183	cf::server_tick; # one server iteration	2845	cf::server_tick; # one server iteration
		2846
2184	$RUNTIME += $TICK;	2847	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;	2848	$NEXT_TICK += $TICK;
2186		2849
		2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2851	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2852	Coro::async_pool {
		2853	write_runtime
		2854	or warn "ERROR: unable to write runtime file: $!";
		2855	};
		2856	}
		2857
		2858	# my $AFTER = Event::time;
		2859	# warn $AFTER - $NOW;#d#
		2860
2187	# if we are delayed by four ticks or more, skip them all	2861	# if we are delayed by four ticks or more, skip them all
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2189		2863
2190	$TICK_WATCHER->at ($NEXT_TICK);	2864	$TICK_WATCHER->at ($NEXT_TICK);
2191	$TICK_WATCHER->start;	2865	$TICK_WATCHER->start;
		2866
		2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2868	$sig->send;
		2869	}
		2870	while (my $sig = shift @WAIT_FOR_TICK) {
		2871	$sig->send;
		2872	}
		2873
		2874	_post_tick;
2192	},	2875	},
2193	);	2876	);
2194		2877
		2878	{
2195	IO::AIO::max_poll_time $TICK * 0.2;	2879	BDB::max_poll_time $TICK * 0.1;
2196		2880	$BDB_POLL_WATCHER = Event->io (
2197	Event->io (	2881	reentrant => 0,
2198	fd => IO::AIO::poll_fileno,	2882	fd => BDB::poll_fileno,
2199	poll => 'r',	2883	poll => 'r',
2200	prio => 5,	2884	prio => 0,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,	2885	data => WF_AUTOCANCEL,
2207	after => 0,	2886	cb => \&BDB::poll_cb,
2208	interval => 10,	2887	);
2209	cb => sub {	2888	BDB::min_parallel 8;
2210	(Coro::unblock_sub {	2889
2211	write_runtime	2890	BDB::set_sync_prepare {
2212	or warn "ERROR: unable to write runtime file: $!";	2891	my $status;
		2892	my $current = $Coro::current;
		2893	(
		2894	sub {
		2895	$status = $!;
		2896	$current->ready; undef $current;
		2897	},
		2898	sub {
		2899	Coro::schedule while defined $current;
		2900	$! = $status;
		2901	},
		2902	)
		2903	};
		2904
		2905	unless ($DB_ENV) {
		2906	$DB_ENV = BDB::db_env_create;
		2907
		2908	cf::sync_job {
		2909	eval {
		2910	BDB::db_env_open
		2911	$DB_ENV,
		2912	$BDBDIR,
		2913	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2914	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2915	0666;
		2916
		2917	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2918
		2919	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2920	$DB_ENV->set_lk_detect;
		2921	};
		2922
		2923	cf::cleanup "db_env_open(db): $@" if $@;
2213	})->();	2924	};
2214	},	2925	}
2215	);	2926	}
		2927
		2928	{
		2929	IO::AIO::min_parallel 8;
		2930
		2931	undef $Coro::AIO::WATCHER;
		2932	IO::AIO::max_poll_time $TICK * 0.1;
		2933	$AIO_POLL_WATCHER = Event->io (
		2934	reentrant => 0,
		2935	data => WF_AUTOCANCEL,
		2936	fd => IO::AIO::poll_fileno,
		2937	poll => 'r',
		2938	prio => 6,
		2939	cb => \&IO::AIO::poll_cb,
		2940	);
		2941	}
		2942
		2943	my $_log_backtrace;
		2944
		2945	sub _log_backtrace {
		2946	my ($msg, @addr) = @_;
		2947
		2948	$msg =~ s/\n//;
		2949
		2950	# limit the # of concurrent backtraces
		2951	if ($_log_backtrace < 2) {
		2952	++$_log_backtrace;
		2953	async {
		2954	my @bt = fork_call {
		2955	@addr = map { sprintf "%x", $_ } @addr;
		2956	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2957	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2958	or die "addr2line: $!";
		2959
		2960	my @funcs;
		2961	my @res = <$fh>;
		2962	chomp for @res;
		2963	while (@res) {
		2964	my ($func, $line) = splice @res, 0, 2, ();
		2965	push @funcs, "[$func] $line";
		2966	}
		2967
		2968	@funcs
		2969	};
		2970
		2971	LOG llevInfo, "[ABT] $msg\n";
		2972	LOG llevInfo, "[ABT] $_\n" for @bt;
		2973	--$_log_backtrace;
		2974	};
		2975	} else {
		2976	LOG llevInfo, "[ABT] $msg\n";
		2977	LOG llevInfo, "[ABT] [suppressed]\n";
		2978	}
		2979	}
		2980
		2981	# load additional modules
		2982	use cf::pod;
2216		2983
2217	END { cf::emergency_save }	2984	END { cf::emergency_save }
2218		2985
2219	1	2986	1
2220		2987

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