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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.154 by root, Tue Jan 9 15:36:19 2007 UTC vs.
Revision 1.267 by root, Sat May 19 00:08:11 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 ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		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
27	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
28		41
29	# 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?
30	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
31		44
32	$Coro::main->prio (Coro::PRIO_MAX); # 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
33		46
34	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
39		56
		57	our $RELOAD; # number of reloads so far
40	our @EVENT;	58	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		59
43	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(!)
44	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	76	our $NEXT_TICK;
46	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;
47		82
48	our %CFG;	83	our %CFG;
49		84
50	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	86	our $RUNTIME;
52		87
53	our %PLAYER; # all users	88	our %PLAYER; # all users
54	our %MAP; # all maps	89	our %MAP; # all maps
55	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";	91
57	our %EXT_CORO; # coroutines bound to extensions	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 $tick_start; # for load detecting purposes
58		98
59	binmode STDOUT;	99	binmode STDOUT;
60	binmode STDERR;	100	binmode STDERR;
61		101
62	# read virtual server time, if available	102	# read virtual server time, if available
63	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
64	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
65	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
66	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
67	}	107	}
68		108
69	mkdir cf::localdir;	109	mkdir $_
70	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
71	mkdir cf::localdir . "/" . cf::tmpdir;
72	mkdir cf::localdir . "/" . cf::uniquedir;
73	mkdir $RANDOM_MAPS;
74		111
75	# a special map that is always available
76	our $LINK_MAP;
77	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
78		115
79	#############################################################################	116	#############################################################################
80		117
81	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
82		119
…		…
89	=item $cf::RUNTIME	126	=item $cf::RUNTIME
90		127
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	129	every server tick.
93		130
94	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		134
96	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
98		139
99	=item $cf::NOW	140	=item $cf::NOW
100		141
101	The time of the last (current) server tick.	142	The time of the last (current) server tick.
102		143
103	=item $cf::TICK	144	=item $cf::TICK
104		145
105	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
106		157
107	=item %cf::CFG	158	=item %cf::CFG
108		159
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		168
112	=back	169	=back
113		170
114	=cut	171	=cut
115		172
116	BEGIN {	173	BEGIN {
117	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	175	my $msg = join "", @_;
119	utf8::encode $msg;
120		176
121	$msg .= "\n"	177	$msg .= "\n"
122	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
123		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
124	LOG llevError, $msg;	183	LOG llevError, $msg;
125	};	184	};
126	}	185	}
127		186
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
146	}	205	}
147		206
148	$Event::DIED = sub {	207	$Event::DIED = sub {
149	warn "error in event callback: @_";	208	warn "error in event callback: @_";
150	};	209	};
151
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155		210
156	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
157		212
158	=over 4	213	=over 4
159		214
…		…
178	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
179	$d	234	$d
180	} || "[unable to dump $_[0]: '$@']";	235	} || "[unable to dump $_[0]: '$@']";
181	}	236	}
182		237
183	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
184		239
185	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
186		241
187	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
188		243
189	=cut
190
191	sub from_json($) {
192	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
193	JSON::Syck::Load $_[0]
194	}
195
196	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
197		245
198	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
199
200	=cut
201
202	sub to_json($) {
203	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
204	JSON::Syck::Dump $_[0]
205	}
206		247
207	=item cf::lock_wait $string	248	=item cf::lock_wait $string
208		249
209	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
210		251
…		…
216	returned.	257	returned.
217		258
218	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
219	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
220		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
221	=cut	266	=cut
222		267
223	our %LOCK;	268	our %LOCK;
224		269
225	sub lock_wait($) {	270	sub lock_wait($) {
…		…
244	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
246	}	291	}
247	}	292	}
248		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
249	sub freeze_mainloop {	300	sub freeze_mainloop {
250	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
251		302
252	my $guard = Coro::guard { $TICK_WATCHER->start };	303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
253	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
254	$guard	307	$guard
255	}	308	}
256		309
257	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
…		…
279		332
280	sub sync_job(&) {	333	sub sync_job(&) {
281	my ($job) = @_;	334	my ($job) = @_;
282		335
283	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
284	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
285	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
286		341
287	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
288	# (but this is cancel-safe)	343	# (but this is cancel-safe)
…		…
299		354
300	while ($busy) {	355	while ($busy) {
301	Coro::cede or Event::one_event;	356	Coro::cede or Event::one_event;
302	}	357	}
303		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
		365
304	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
305	} else {	367	} else {
306	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
307		369
308	$job->()	370	$job->()
309	}	371	}
310	}	372	}
311		373
312	=item $coro = cf::async_ext { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
313		375
314	Like async, but this coro is automcatially being canceled when the	376	Like async, but this coro is automatically being canceled when the
315	extension calling this is being unloaded.	377	extension calling this is being unloaded.
316		378
317	=cut	379	=cut
318		380
319	sub async_ext(&) {	381	sub async_ext(&) {
…		…
328		390
329	$coro	391	$coro
330	}	392	}
331		393
332	sub write_runtime {	394	sub write_runtime {
333	my $runtime = cf::localdir . "/runtime";	395	my $runtime = "$LOCALDIR/runtime";
		396
		397	# first touch the runtime file to show we are still running:
		398	# the fsync below can take a very very long time.
		399
		400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		401	utime undef, undef, $fh;
		402	}
		403
		404	my $guard = cf::lock_acquire "write_runtime";
334		405
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336	or return;	407	or return;
337		408
		409	my $value = $cf::RUNTIME + 90 + 10;
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	410	# 10 is the runtime save interval, for a monotonic clock
		411	# 60 allows for the watchdog to kill the server.
		412
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;	414	and return;
341		415
		416	# always fsync - this file is important
342	aio_fsync $fh	417	aio_fsync $fh
343	and return;	418	and return;
344		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
345	close $fh	423	close $fh
346	or return;	424	or return;
347		425
348	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
349	and return;	427	and return;
350		428
		429	warn "runtime file written.\n";#d#
		430
351	1	431	1
352	}	432	}
353		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
354	=back	445	=back
355		446
356	=cut	447	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	# used to convert map paths into valid unix filenames by repalcing / by ∕
363	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
364
365	sub new {
366	my ($class, $path, $base) = @_;
367
368	$path = $path->as_string if ref $path;
369
370	my $self = bless { }, $class;
371
372	# {... are special paths that are not touched
373	# ?xxx/... are special absolute paths
374	# ?random/... random maps
375	# /! non-realised random map exit
376	# /... normal maps
377	# ~/... per-player maps without a specific player (DO NOT USE)
378	# ~user/... per-player map of a specific user
379
380	if ($path =~ /^{/) {
381	# fine as it is
382	} elsif ($path =~ s{^\?random/}{}) {
383	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
384	$self->{random} = cf::from_json $data;
385	} else {
386	if ($path =~ s{^~([^/]+)?}{}) {
387	$self->{user_rel} = 1;
388
389	if (defined $1) {
390	$self->{user} = $1;
391	} elsif ($base =~ m{^~([^/]+)/}) {
392	$self->{user} = $1;
393	} else {
394	warn "cannot resolve user-relative path without user <$path,$base>\n";
395	}
396	} elsif ($path =~ /^\//) {
397	# already absolute
398	} else {
399	$base =~ s{[^/]+/?$}{};
400	return $class->new ("$base/$path");
401	}
402
403	for ($path) {
404	redo if s{/\.?/}{/};
405	redo if s{/[^/]+/\.\./}{/};
406	}
407	}
408
409	$self->{path} = $path;
410
411	$self
412	}
413
414	# the name / primary key / in-game path
415	sub as_string {
416	my ($self) = @_;
417
418	$self->{user_rel} ? "~$self->{user}$self->{path}"
419	: $self->{random} ? "?random/$self->{path}"
420	: $self->{path}
421	}
422
423	# the displayed name, this is a one way mapping
424	sub visible_name {
425	my ($self) = @_;
426
427	# if (my $rmp = $self->{random}) {
428	# # todo: be more intelligent about this
429	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
430	# } else {
431	$self->as_string
432	# }
433	}
434
435	# escape the /'s in the path
436	sub _escaped_path {
437	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
438	$path
439	}
440
441	# the original (read-only) location
442	sub load_path {
443	my ($self) = @_;
444
445	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
446	}
447
448	# the temporary/swap location
449	sub save_path {
450	my ($self) = @_;
451
452	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
453	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
454	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
455	}
456
457	# the unique path, might be eq to save_path
458	sub uniq_path {
459	my ($self) = @_;
460
461	$self->{user_rel} || $self->{random}
462	? undef
463	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
464	}
465
466	# return random map parameters, or undef
467	sub random_map_params {
468	my ($self) = @_;
469
470	$self->{random}
471	}
472
473	# this is somewhat ugly, but style maps do need special treatment
474	sub is_style_map {
475	$_[0]{path} =~ m{^/styles/}
476	}
477
478	package cf;
479		448
480	#############################################################################	449	#############################################################################
481		450
482	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
483		452
…		…
609	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
610	our @CB_MAP = ();	579	our @CB_MAP = ();
611		580
612	my %attachment;	581	my %attachment;
613		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
614	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
615	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
616		591
617	use sort 'stable';	592	use sort 'stable';
618		593
…		…
652	$registry = $CB_TYPE[$object_type] ||= [];	627	$registry = $CB_TYPE[$object_type] ||= [];
653		628
654	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
655	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
656	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
657	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
658		633
659	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
660	my $pkg = shift @arg;	635	my $pkg = shift @arg;
661		636
662	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
703	if (ref $_[0]) {	678	if (ref $_[0]) {
704	_object_attach @_;	679	_object_attach @_;
705	} else {	680	} else {
706	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
707	}	682	}
		683	_recalc_want;
708	};	684	};
709		685
710	# all those should be optimised	686	# all those should be optimised
711	sub cf::attachable::detach {	687	sub cf::attachable::detach {
712	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
715	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
716	reattach ($obj);	692	reattach ($obj);
717	} else {	693	} else {
718	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
719	}	695	}
		696	_recalc_want;
720	};	697	};
721		698
722	sub cf::attachable::attached {	699	sub cf::attachable::attached {
723	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
724		701
…		…
789	# object support	766	# object support
790		767
791	sub reattach {	768	sub reattach {
792	# basically do the same as instantiate, without calling instantiate	769	# basically do the same as instantiate, without calling instantiate
793	my ($obj) = @_;	770	my ($obj) = @_;
		771
		772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
794		773
795	my $registry = $obj->registry;	774	my $registry = $obj->registry;
796		775
797	@$registry = ();	776	@$registry = ();
798		777
…		…
845	$filename, length $$rdata, scalar @$objs;	824	$filename, length $$rdata, scalar @$objs;
846		825
847	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
848	chmod SAVE_MODE, $fh;	827	chmod SAVE_MODE, $fh;
849	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
850	aio_fsync $fh;	829	aio_fsync $fh if $cf::USE_FSYNC;
851	close $fh;	830	close $fh;
852		831
853	if (@$objs) {	832	if (@$objs) {
854	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) {
855	chmod SAVE_MODE, $fh;	834	chmod SAVE_MODE, $fh;
856	my $data = Storable::nfreeze { version => 1, objs => $objs };	835	my $data = Storable::nfreeze { version => 1, objs => $objs };
857	aio_write $fh, 0, (length $data), $data, 0;	836	aio_write $fh, 0, (length $data), $data, 0;
858	aio_fsync $fh;	837	aio_fsync $fh if $cf::USE_FSYNC;
859	close $fh;	838	close $fh;
860	aio_rename "$filename.pst~", "$filename.pst";	839	aio_rename "$filename.pst~", "$filename.pst";
861	}	840	}
862	} else {	841	} else {
863	aio_unlink "$filename.pst";	842	aio_unlink "$filename.pst";
…		…
930	=cut	909	=cut
931		910
932	sub register_extcmd {	911	sub register_extcmd {
933	my ($name, $cb) = @_;	912	my ($name, $cb) = @_;
934		913
935	my $caller = caller;
936	#warn "registering extcmd '$name' to '$caller'";
937
938	$EXTCMD{$name} = [$cb, $caller];	914	$EXTCMD{$name} = $cb;
939	}	915	}
940		916
941	cf::player->attach (	917	cf::player->attach (
942	on_command => sub {	918	on_command => sub {
943	my ($pl, $name, $params) = @_;	919	my ($pl, $name, $params) = @_;
…		…
956		932
957	my $msg = eval { from_json $buf };	933	my $msg = eval { from_json $buf };
958		934
959	if (ref $msg) {	935	if (ref $msg) {
960	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
961	if (my %reply = $cb->[0]->($pl, $msg)) {	937	if (my %reply = $cb->($pl, $msg)) {
962	$pl->ext_reply ($msg->{msgid}, %reply);	938	$pl->ext_reply ($msg->{msgid}, %reply);
963	}	939	}
964	}	940	}
965	} else {	941	} else {
966	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
968		944
969	cf::override;	945	cf::override;
970	},	946	},
971	);	947	);
972		948
973	sub register {
974	my ($base, $pkg) = @_;
975
976	#TODO
977	}
978
979	sub load_extension {	949	sub load_extension {
980	my ($path) = @_;	950	my ($path) = @_;
981		951
982	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
983	my $base = $1;	953	my $base = $1;
984	my $pkg = $1;	954	my $pkg = $1;
985	$pkg =~ s/[^[:word:]]/_/g;	955	$pkg =~ s/[^[:word:]]/_/g;
986	$pkg = "ext::$pkg";	956	$pkg = "ext::$pkg";
987		957
988	warn "loading '$path' into '$pkg'\n";	958	warn "... loading '$path' into '$pkg'\n";
989		959
990	open my $fh, "<:utf8", $path	960	open my $fh, "<:utf8", $path
991	or die "$path: $!";	961	or die "$path: $!";
992		962
993	my $source =	963	my $source =
994	"package $pkg; use strict; use utf8;\n"	964	"package $pkg; use strict; use utf8;\n"
995	. "#line 1 \"$path\"\n{\n"	965	. "#line 1 \"$path\"\n{\n"
996	. (do { local $/; <$fh> })	966	. (do { local $/; <$fh> })
997	. "\n};\n1";	967	. "\n};\n1";
998		968
999	eval $source	969	unless (eval $source) {
1000	or die $@ ? "$path: $@\n"	970	my $msg = $@ ? "$path: $@\n"
1001	: "extension disabled.\n";	971	: "extension disabled.\n";
1002		972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1003	push @exts, $pkg;	973	warn $@;
1004	$ext_pkg{$base} = $pkg;	974	warn "mandatory extension failed to load, exiting.\n";
1005		975	exit 1;
1006	# no strict 'refs';	976	}
1007	# @{"$pkg\::ISA"} = ext::;	977	die $@;
1008
1009	register $base, $pkg;
1010	}
1011
1012	sub unload_extension {
1013	my ($pkg) = @_;
1014
1015	warn "removing extension $pkg\n";
1016
1017	# remove hooks
1018	#TODO
1019	# for my $idx (0 .. $#PLUGIN_EVENT) {
1020	# delete $hook[$idx]{$pkg};
1021	# }	978	}
1022		979
1023	# remove commands	980	push @EXTS, $pkg;
1024	for my $name (keys %COMMAND) {
1025	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1026
1027	if (@cb) {
1028	$COMMAND{$name} = \@cb;
1029	} else {
1030	delete $COMMAND{$name};
1031	}
1032	}
1033
1034	# remove extcmds
1035	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1036	delete $EXTCMD{$name};
1037	}
1038
1039	if (my $cb = $pkg->can ("unload")) {
1040	eval {
1041	$cb->($pkg);
1042	1
1043	} or warn "$pkg unloaded, but with errors: $@";
1044	}
1045
1046	Symbol::delete_package $pkg;
1047	}	981	}
1048		982
1049	sub load_extensions {	983	sub load_extensions {
1050	for my $ext (<$LIBDIR/*.ext>) {	984	for my $ext (<$LIBDIR/*.ext>) {
1051	next unless -r $ext;	985	next unless -r $ext;
…		…
1055	} or warn "$ext not loaded: $@";	989	} or warn "$ext not loaded: $@";
1056	}	990	}
1057	}	991	}
1058		992
1059	#############################################################################	993	#############################################################################
1060	# load/save/clean perl data associated with a map
1061
1062	*cf::mapsupport::on_clean = sub {
1063	my ($map) = @_;
1064
1065	my $path = $map->tmpname;
1066	defined $path or return;
1067
1068	unlink "$path.pst";
1069	};
1070
1071	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1072
1073	#############################################################################
1074	# load/save perl data associated with player->ob objects
1075
1076	sub all_objects(@) {
1077	@_, map all_objects ($_->inv), @_
1078	}
1079
1080	# TODO: compatibility cruft, remove when no longer needed
1081	cf::player->attach (
1082	on_load => sub {
1083	my ($pl, $path) = @_;
1084
1085	for my $o (all_objects $pl->ob) {
1086	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1087	$o->set_ob_key_value ("_perl_data");
1088
1089	%$o = %{ Storable::thaw pack "H*", $value };
1090	}
1091	}
1092	},
1093	);
1094
1095	#############################################################################
1096		994
1097	=head2 CORE EXTENSIONS	995	=head2 CORE EXTENSIONS
1098		996
1099	Functions and methods that extend core crossfire objects.	997	Functions and methods that extend core crossfire objects.
1100		998
…		…
1113	Returns the given player object, loading it if necessary (might block).	1011	Returns the given player object, loading it if necessary (might block).
1114		1012
1115	=cut	1013	=cut
1116		1014
1117	sub playerdir($) {	1015	sub playerdir($) {
1118	cf::localdir	1016	"$PLAYERDIR/"
1119	. "/"
1120	. cf::playerdir
1121	. "/"
1122	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1123	}	1018	}
1124		1019
1125	sub path($) {	1020	sub path($) {
1126	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1021	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1127		1022
1128	(playerdir $login) . "/$login.pl"	1023	(playerdir $login) . "/playerdata"
1129	}	1024	}
1130		1025
1131	sub find_active($) {	1026	sub find_active($) {
1132	$cf::PLAYER{$_[0]}	1027	$cf::PLAYER{$_[0]}
1133	and $cf::PLAYER{$_[0]}->active	1028	and $cf::PLAYER{$_[0]}->active
…		…
1136		1031
1137	sub exists($) {	1032	sub exists($) {
1138	my ($login) = @_;	1033	my ($login) = @_;
1139		1034
1140	$cf::PLAYER{$login}	1035	$cf::PLAYER{$login}
1141	or cf::sync_job { !aio_stat $login }	1036	or cf::sync_job { !aio_stat path $login }
1142	}	1037	}
1143		1038
1144	sub find($) {	1039	sub find($) {
1145	return $cf::PLAYER{$_[0]} || do {	1040	return $cf::PLAYER{$_[0]} || do {
1146	my $login = $_[0];	1041	my $login = $_[0];
1147		1042
1148	my $guard = cf::lock_acquire "user_find:$login";	1043	my $guard = cf::lock_acquire "user_find:$login";
1149		1044
1150	$cf::PLAYER{$_[0]} || do {	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
1151	my $pl = load_pl path $login	1053	my $pl = load_pl path $login
1152	or return;	1054	or return;
1153	$cf::PLAYER{$login} = $pl	1055	$cf::PLAYER{$login} = $pl
1154	}	1056	}
1155	}	1057	}
…		…
1192		1094
1193	=cut	1095	=cut
1194		1096
1195	sub quit_character {	1097	sub quit_character {
1196	my ($pl) = @_;	1098	my ($pl) = @_;
		1099
		1100	my $name = $pl->ob->name;
1197		1101
1198	$pl->{deny_save} = 1;	1102	$pl->{deny_save} = 1;
1199	$pl->password ("*"); # this should lock out the player until we nuked the dir	1103	$pl->password ("*"); # this should lock out the player until we nuked the dir
1200		1104
1201	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1206	my $path = playerdir $pl;	1110	my $path = playerdir $pl;
1207	my $temp = "$path~$cf::RUNTIME~deleting~";	1111	my $temp = "$path~$cf::RUNTIME~deleting~";
1208	aio_rename $path, $temp;	1112	aio_rename $path, $temp;
1209	delete $cf::PLAYER{$pl->ob->name};	1113	delete $cf::PLAYER{$pl->ob->name};
1210	$pl->destroy;	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
1211	IO::AIO::aio_rmtree $temp;	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;
1212	}	1136	}
1213		1137
1214	=item cf::player::list_logins	1138	=item cf::player::list_logins
1215		1139
1216	Returns am arrayref of all valid playernames in the system, can take a	1140	Returns am arrayref of all valid playernames in the system, can take a
1217	while and may block, so not sync_job-capable, ever.	1141	while and may block, so not sync_job-capable, ever.
1218		1142
1219	=cut	1143	=cut
1220		1144
1221	sub list_logins {	1145	sub list_logins {
1222	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1146	my $dirs = aio_readdir $PLAYERDIR
1223	or return [];	1147	or return [];
1224		1148
1225	my @logins;	1149	my @logins;
1226		1150
1227	for my $login (@$dirs) {	1151	for my $login (@$dirs) {
1228	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1152	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1229	aio_read $fh, 0, 512, my $buf, 0 or next;	1153	aio_read $fh, 0, 512, my $buf, 0 or next;
1230	$buf !~ /^password -------------$/ or next; # official not-valid tag	1154	$buf !~ /^password -------------$/m or next; # official not-valid tag
1231		1155
1232	utf8::decode $login;	1156	utf8::decode $login;
1233	push @logins, $login;	1157	push @logins, $login;
1234	}	1158	}
1235		1159
1236	\@logins	1160	\@logins
1237	}	1161	}
1238		1162
1239	=item $player->maps	1163	=item $player->maps
1240		1164
1241	Returns an arrayref of cf::path's of all maps that are private for this	1165	Returns an arrayref of map paths that are private for this
1242	player. May block.	1166	player. May block.
1243		1167
1244	=cut	1168	=cut
1245		1169
1246	sub maps($) {	1170	sub maps($) {
1247	my ($pl) = @_;	1171	my ($pl) = @_;
		1172
		1173	$pl = ref $pl ? $pl->ob->name : $pl;
1248		1174
1249	my $files = aio_readdir playerdir $pl	1175	my $files = aio_readdir playerdir $pl
1250	or return;	1176	or return;
1251		1177
1252	my @paths;	1178	my @paths;
1253		1179
1254	for (@$files) {	1180	for (@$files) {
1255	utf8::decode $_;	1181	utf8::decode $_;
1256	next if /\.(?:pl|pst)$/;	1182	next if /\.(?:pl|pst)$/;
1257	next unless /^$PATH_SEP/;	1183	next unless /^$PATH_SEP/o;
1258		1184
1259	s/$PATH_SEP/\//g;	1185	push @paths, cf::map::normalise "~$pl/$_";
1260	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1261	}	1186	}
1262		1187
1263	\@paths	1188	\@paths
1264	}	1189	}
1265		1190
1266	=item $player->ext_reply ($msgid, $msgtype, %msg)	1191	=item $player->ext_reply ($msgid, %msg)
1267		1192
1268	Sends an ext reply to the player.	1193	Sends an ext reply to the player.
1269		1194
1270	=cut	1195	=cut
1271		1196
1272	sub ext_reply($$$%) {	1197	sub ext_reply($$%) {
1273	my ($self, $id, %msg) = @_;	1198	my ($self, $id, %msg) = @_;
1274		1199
1275	$msg{msgid} = $id;	1200	$msg{msgid} = $id;
1276		1201
1277	$self->send ("ext " . cf::to_json \%msg);	1202	$self->send ("ext " . cf::to_json \%msg);
1278	}	1203	}
1279		1204
1280	package cf;	1205	=item $player->ext_event ($type, %msg)
		1206
		1207	Sends an ext event to the client.
		1208
		1209	=cut
		1210
		1211	sub ext_event($$%) {
		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
		1244	}
1281		1245
1282	=back	1246	=back
1283
1284		1247
1285	=head3 cf::map	1248	=head3 cf::map
1286		1249
1287	=over 4	1250	=over 4
1288		1251
…		…
1291	package cf::map;	1254	package cf::map;
1292		1255
1293	use Fcntl;	1256	use Fcntl;
1294	use Coro::AIO;	1257	use Coro::AIO;
1295		1258
		1259	use overload
		1260	'""' => \&as_string,
		1261	fallback => 1;
		1262
1296	our $MAX_RESET = 3600;	1263	our $MAX_RESET = 3600;
1297	our $DEFAULT_RESET = 3000;	1264	our $DEFAULT_RESET = 3000;
1298		1265
1299	sub generate_random_map {	1266	sub generate_random_map {
1300	my ($path, $rmp) = @_;	1267	my ($self, $rmp) = @_;
1301
1302	# mit "rum" bekleckern, nicht	1268	# mit "rum" bekleckern, nicht
1303	cf::map::_create_random_map	1269	$self->_create_random_map (
1304	$path,
1305	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1306	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1307	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1308	$rmp->{exit_on_final_map},	1273	$rmp->{exit_on_final_map},
1309	$rmp->{xsize}, $rmp->{ysize},	1274	$rmp->{xsize}, $rmp->{ysize},
1310	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1311	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1312	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1277	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1313	$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},
1314	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1279	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1315	(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"
1316	}	1411	}
1317		1412
1318	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1319	# all maps in C++...	1414	# all maps in C++...
1320	sub change_all_map_light {	1415	sub change_all_map_light {
…		…
1322		1417
1323	$_->change_map_light ($change)	1418	$_->change_map_light ($change)
1324	for grep $_->outdoor, values %cf::MAP;	1419	for grep $_->outdoor, values %cf::MAP;
1325	}	1420	}
1326		1421
		1422	sub unlink_save {
		1423	my ($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
1327	sub try_load_header($) {	1430	sub load_header_from($) {
1328	my ($path) = @_;	1431	my ($self, $path) = @_;
1329		1432
1330	utf8::encode $path;	1433	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	1434	#aio_open $path, O_RDONLY, 0
		1435	# or return;
		1436
		1437	$self->_load_header ($path)
1332	or return;	1438	or return;
1333		1439
1334	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
1335	or return;	1483	or return;
		1484	$self->prepare_orig;
		1485	}
1336		1486
1337	# for better error messages only, will be overwritten	1487	$self->default_region (cf::region::find_by_path $self->{path})
1338	$map->path ($path);	1488	unless $self->default_region;
1339		1489
1340	$map->load_header ($path)	1490	1
1341	or return;
1342
1343	$map->{load_path} = $path;
1344
1345	$map
1346	}	1491	}
1347		1492
1348	sub find;	1493	sub find;
1349	sub find {	1494	sub find {
1350	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1351		1496
1352	#warn "find<$path,$origin>\n";#d#
1353
1354	$path = new cf::path $path, $origin && $origin->path;	1497	$path = normalise $path, $origin && $origin->path;
1355	my $key = $path->as_string;
1356		1498
1357	cf::lock_wait "map_find:$key";	1499	cf::lock_wait "map_find:$path";
1358		1500
1359	$cf::MAP{$key} || do {	1501	$cf::MAP{$path} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	1502	my $guard = cf::lock_acquire "map_find:$path";
1361		1503	my $map = new_from_path cf::map $path
1362	# do it the slow way
1363	my $map = try_load_header $path->save_path;
1364
1365	Coro::cede;
1366
1367	if ($map) {
1368	$map->last_access ((delete $map->{last_access})
1369	|| $cf::RUNTIME); #d#
1370	# safety
1371	$map->{instantiate_time} = $cf::RUNTIME
1372	if $map->{instantiate_time} > $cf::RUNTIME;
1373	} else {
1374	if (my $rmp = $path->random_map_params) {
1375	$map = generate_random_map $key, $rmp;
1376	} else {
1377	$map = try_load_header $path->load_path;
1378	}
1379
1380	$map or return;	1504	or return;
1381		1505
1382	$map->{load_original} = 1;
1383	$map->{instantiate_time} = $cf::RUNTIME;
1384	$map->last_access ($cf::RUNTIME);
1385	$map->instantiate;
1386
1387	# per-player maps become, after loading, normal maps
1388	$map->per_player (0) if $path->{user_rel};
1389	}
1390
1391	$map->path ($key);
1392	$map->{path} = $path;
1393	$map->{last_save} = $cf::RUNTIME;	1506	$map->{last_save} = $cf::RUNTIME;
1394		1507
1395	Coro::cede;	1508	$map->load_header
		1509	or return;
1396		1510
1397	if ($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;
1398	$map->reset;	1514	$map->reset;
1399	undef $guard;	1515	undef $guard;
1400	$map = find $path	1516	return find $path;
1401	or return;
1402	}	1517	}
1403		1518
1404	$cf::MAP{$key} = $map	1519	$cf::MAP{$path} = $map
1405	}	1520	}
1406	}	1521	}
		1522
		1523	sub pre_load { }
		1524	sub post_load { }
1407		1525
1408	sub load {	1526	sub load {
1409	my ($self) = @_;	1527	my ($self) = @_;
1410		1528
		1529	local $self->{deny_reset} = 1; # loading can take a long time
		1530
1411	my $path = $self->{path};	1531	my $path = $self->{path};
		1532
		1533	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1534	my $guard = cf::lock_acquire "map_load:$path";
1413		1535
1414	return if $self->in_memory != cf::MAP_SWAPPED;	1536	return if $self->in_memory != cf::MAP_SWAPPED;
1415		1537
1416	$self->in_memory (cf::MAP_LOADING);	1538	$self->in_memory (cf::MAP_LOADING);
1417		1539
1418	$self->alloc;	1540	$self->alloc;
		1541
		1542	$self->pre_load;
		1543	Coro::cede;
		1544
1419	$self->load_objects ($self->{load_path}, 1)	1545	$self->_load_objects ($self->{load_path}, 1)
1420	or return;	1546	or return;
1421		1547
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};	1549	if delete $self->{load_original};
1424		1550
1425	if (my $uniq = $path->uniq_path) {	1551	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	1552	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	1553	if (aio_open $uniq, O_RDONLY, 0) {
1428	$self->clear_unique_items;	1554	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	1555	$self->_load_objects ($uniq, 0);
1430	}	1556	}
1431	}	1557	}
1432		1558
1433	Coro::cede;	1559	Coro::cede;
1434
1435	# now do the right thing for maps	1560	# now do the right thing for maps
1436	$self->link_multipart_objects;	1561	$self->link_multipart_objects;
1437
1438	if ($self->{path}->is_style_map) {
1439	$self->{deny_save} = 1;
1440	$self->{deny_reset} = 1;
1441	} else {
1442	$self->fix_auto_apply;
1443	$self->decay_objects;
1444	$self->update_buttons;
1445	$self->set_darkness_map;
1446	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1447	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;
1448	$self->activate;	1573	$self->activate;
1449	}	1574	}
1450		1575
1451	Coro::cede;
1452
1453	$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	$neigh->load;
		1612	}
1454	}	1613	}
1455		1614
1456	sub find_sync {	1615	sub find_sync {
1457	my ($path, $origin) = @_;	1616	my ($path, $origin) = @_;
1458		1617
1459	cf::sync_job { cf::map::find $path, $origin }	1618	cf::sync_job { find $path, $origin }
1460	}	1619	}
1461		1620
1462	sub do_load_sync {	1621	sub do_load_sync {
1463	my ($map) = @_;	1622	my ($map) = @_;
1464		1623
1465	cf::sync_job { $map->load };	1624	cf::sync_job { $map->load };
1466	}	1625	}
1467		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	$MAP_PREFETCHER->prio (6);
		1653
		1654	()
		1655	}
		1656
1468	sub save {	1657	sub save {
1469	my ($self) = @_;	1658	my ($self) = @_;
1470		1659
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
1472		1661
1473	$self->{last_save} = $cf::RUNTIME;	1662	$self->{last_save} = $cf::RUNTIME;
1474		1663
1475	return unless $self->dirty;	1664	return unless $self->dirty;
1476		1665
1477	my $save = $self->{path}->save_path; utf8::encode $save;	1666	my $save = $self->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1667	my $uniq = $self->uniq_path; utf8::encode $uniq;
1479		1668
1480	$self->{load_path} = $save;	1669	$self->{load_path} = $save;
1481		1670
1482	return if $self->{deny_save};	1671	return if $self->{deny_save};
1483		1672
…		…
1486	cf::async {	1675	cf::async {
1487	$_->contr->save for $self->players;	1676	$_->contr->save for $self->players;
1488	};	1677	};
1489		1678
1490	if ($uniq) {	1679	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);	1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {	1682	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}	1684	}
1496	}	1685	}
1497		1686
1498	sub swap_out {	1687	sub swap_out {
1499	my ($self) = @_;	1688	my ($self) = @_;
…		…
1513		1702
1514	sub reset_at {	1703	sub reset_at {
1515	my ($self) = @_;	1704	my ($self) = @_;
1516		1705
1517	# TODO: safety, remove and allow resettable per-player maps	1706	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};	1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1519	return 1e99 if $self->{deny_reset};	1708	return 1e99 if $self->{deny_reset};
1520		1709
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		1712
…		…
1528	my ($self) = @_;	1717	my ($self) = @_;
1529		1718
1530	$self->reset_at <= $cf::RUNTIME	1719	$self->reset_at <= $cf::RUNTIME
1531	}	1720	}
1532		1721
1533	sub unlink_save {
1534	my ($self) = @_;
1535
1536	utf8::encode (my $save = $self->{path}->save_path);
1537	aioreq_pri 3; IO::AIO::aio_unlink $save;
1538	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1539	}
1540
1541	sub rename {
1542	my ($self, $new_path) = @_;
1543
1544	$self->unlink_save;
1545
1546	delete $cf::MAP{$self->path};
1547	$self->{path} = new cf::path $new_path;
1548	$self->path ($self->{path}->as_string);
1549	$cf::MAP{$self->path} = $self;
1550
1551	$self->save;
1552	}
1553
1554	sub reset {	1722	sub reset {
1555	my ($self) = @_;	1723	my ($self) = @_;
1556		1724
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	1725	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		1726
1559	return if $self->players;	1727	return if $self->players;
1560	return if $self->{path}{user_rel};#d#	1728	return if $self->isa ("ext::map_per_player");#d#
1561		1729
1562	warn "resetting map ", $self->path;#d#	1730	warn "resetting map ", $self->path;#d#
1563		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
1564	delete $cf::MAP{$self->path};	1742	delete $cf::MAP{$self->path};
		1743
		1744	$self->clear;
1565		1745
1566	$_->clear_links_to ($self) for values %cf::MAP;	1746	$_->clear_links_to ($self) for values %cf::MAP;
1567		1747
1568	$self->unlink_save;	1748	$self->unlink_save;
1569	$self->destroy;	1749	$self->destroy;
…		…
1572	my $nuke_counter = "aaaa";	1752	my $nuke_counter = "aaaa";
1573		1753
1574	sub nuke {	1754	sub nuke {
1575	my ($self) = @_;	1755	my ($self) = @_;
1576		1756
		1757	delete $cf::MAP{$self->path};
		1758
		1759	$self->unlink_save;
		1760
		1761	bless $self, "cf::map";
		1762	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	1763	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	1764	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1766
		1767	$cf::MAP{$self->path} = $self;
		1768
1580	$self->reset; # polite request, might not happen	1769	$self->reset; # polite request, might not happen
1581	}	1770	}
1582		1771
1583	sub customise_for {	1772	=item cf::map::unique_maps
1584	my ($map, $ob) = @_;
1585		1773
1586	if ($map->per_player) {	1774	Returns an arrayref of paths of all shared maps that have
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1775	instantiated unique items. May block.
1588	}
1589		1776
1590	$map	1777	=cut
1591	}
1592		1778
1593	sub emergency_save {	1779	sub unique_maps() {
1594	my $freeze_guard = cf::freeze_mainloop;	1780	my $files = aio_readdir $UNIQUEDIR
		1781	or return;
1595		1782
1596	warn "enter emergency perl save\n";	1783	my @paths;
1597		1784
1598	cf::sync_job {	1785	for (@$files) {
1599	warn "begin emergency player save\n";	1786	utf8::decode $_;
1600	$_->save for values %cf::PLAYER;	1787	next if /\.pst$/;
1601	warn "end emergency player save\n";	1788	next unless /^$PATH_SEP/o;
1602		1789
1603	warn "begin emergency map save\n";	1790	push @paths, cf::map::normalise $_;
1604	$_->save for values %cf::MAP;
1605	warn "end emergency map save\n";
1606	};	1791	}
1607		1792
1608	warn "leave emergency perl save\n";	1793	\@paths
1609	}	1794	}
1610		1795
1611	package cf;	1796	package cf;
1612		1797
1613	=back	1798	=back
1614		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
1615		1826
1616	=head3 cf::object::player	1827	=head3 cf::object::player
1617		1828
1618	=over 4	1829	=over 4
1619		1830
…		…
1659		1870
1660	=item $player_object->enter_link	1871	=item $player_object->enter_link
1661		1872
1662	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}>).
1663		1874
1664	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
1665	I<MUST> call C<leave_link> as soon as possible, though.	1876	I<MUST> call C<leave_link> as soon as possible, though.
1666		1877
		1878	Will never block.
		1879
1667	=item $player_object->leave_link ($map, $x, $y)	1880	=item $player_object->leave_link ($map, $x, $y)
1668		1881
1669	Moves the player out of the specila link map onto the given map. If the	1882	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	1883	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	1884	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	1885	fails, to the emergency map position.
1673		1886
1674	Might block.	1887	Might block.
1675		1888
1676	=cut	1889	=cut
		1890
		1891	sub link_map {
		1892	unless ($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	$LINK_MAP
		1899	}
1677		1900
1678	sub cf::object::player::enter_link {	1901	sub cf::object::player::enter_link {
1679	my ($self) = @_;	1902	my ($self) = @_;
1680		1903
1681	$self->deactivate_recursive;	1904	$self->deactivate_recursive;
1682		1905
1683	return if $self->map == $LINK_MAP;	1906	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		1907
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	1909	if $self->map;
1687		1910
1688	$self->enter_map ($LINK_MAP, 20, 20);	1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1689	}	1912	}
1690		1913
1691	sub cf::object::player::leave_link {	1914	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	1915	my ($self, $map, $x, $y) = @_;
1693		1916
…		…
1711	# use -1 or undef as default coordinates, not 0, 0	1934	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	1935	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	1936	if $x <=0 && $y <= 0;
1714		1937
1715	$map->load;	1938	$map->load;
		1939	$map->load_diag;
1716		1940
1717	return unless $self->contr->active;	1941	return unless $self->contr->active;
1718	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1719	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1720	}	1946	}
1721		1947
1722	cf::player->attach (	1948	cf::player->attach (
1723	on_logout => sub {	1949	on_logout => sub {
…		…
1736	# try to abort aborted map switching on player login :)	1962	# try to abort aborted map switching on player login :)
1737	# should happen only on crashes	1963	# should happen only on crashes
1738	if ($pl->ob->{_link_pos}) {	1964	if ($pl->ob->{_link_pos}) {
1739	$pl->ob->enter_link;	1965	$pl->ob->enter_link;
1740	(async {	1966	(async {
1741	# we need this sleep as the login has a concurrent enter_exit running
1742	# and this sleep increases chances of the player not ending up in scorn
1743	$pl->ob->reply (undef,	1967	$pl->ob->reply (undef,
1744	"There was an internal problem at your last logout, "	1968	"There was an internal problem at your last logout, "
1745	. "the server will try to bring you to your intended destination in a second.",	1969	. "the server will try to bring you to your intended destination in a second.",
1746	cf::NDI_RED);	1970	cf::NDI_RED);
		1971	# we need this sleep as the login has a concurrent enter_exit running
		1972	# and this sleep increases chances of the player not ending up in scorn
1747	Coro::Timer::sleep 1;	1973	Coro::Timer::sleep 1;
1748	$pl->ob->leave_link;	1974	$pl->ob->leave_link;
1749	})->prio (2);	1975	})->prio (2);
1750	}	1976	}
1751	},	1977	},
…		…
1756	=cut	1982	=cut
1757		1983
1758	sub cf::object::player::goto {	1984	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	1985	my ($self, $path, $x, $y) = @_;
1760		1986
1761	$path = new cf::path $path;
1762	$path ne "/" or Carp::cluck ("oy");#d#
1763
1764	$self->enter_link;	1987	$self->enter_link;
1765		1988
1766	(async {	1989	(async {
		1990	my $map = eval {
1767	my $map = cf::map::find $path->as_string;	1991	my $map = cf::map::find $path;
1768	$map = $map->customise_for ($self) if $map;	1992	$map = $map->customise_for ($self) if $map;
1769		1993	$map
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	1994	} or
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1995	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1774		1996
1775	$self->leave_link ($map, $x, $y);	1997	$self->leave_link ($map, $x, $y);
1776	})->prio (1);	1998	})->prio (1);
1777	}	1999	}
1778		2000
…		…
1782		2004
1783	sub parse_random_map_params {	2005	sub parse_random_map_params {
1784	my ($spec) = @_;	2006	my ($spec) = @_;
1785		2007
1786	my $rmp = { # defaults	2008	my $rmp = { # defaults
1787	xsize => 10,	2009	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2010	ysize => (cf::rndm 15, 40),
		2011	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2012	#layout => string,
1789	};	2013	};
1790		2014
1791	for (split /\n/, $spec) {	2015	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2016	my ($k, $v) = split /\s+/, $_, 2;
1793		2017
…		…
1797	$rmp	2021	$rmp
1798	}	2022	}
1799		2023
1800	sub prepare_random_map {	2024	sub prepare_random_map {
1801	my ($exit) = @_;	2025	my ($exit) = @_;
		2026
		2027	my $guard = cf::lock_acquire "exit_prepare:$exit";
1802		2028
1803	# all this does is basically replace the /! path by	2029	# all this does is basically replace the /! path by
1804	# a new random map path (?random/...) with a seed	2030	# a new random map path (?random/...) with a seed
1805	# that depends on the exit object	2031	# that depends on the exit object
1806		2032
1807	my $rmp = parse_random_map_params $exit->msg;	2033	my $rmp = parse_random_map_params $exit->msg;
1808		2034
1809	if ($exit->map) {	2035	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2036	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2037	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2038	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2039	$rmp->{origin_y} = $exit->y;
1814	}	2040	}
1815		2041
1816	$rmp->{random_seed} ||= $exit->random_seed;	2042	$rmp->{random_seed} ||= $exit->random_seed;
1817		2043
1818	my $data = cf::to_json $rmp;	2044	my $data = cf::to_json $rmp;
1819	my $md5 = Digest::MD5::md5_hex $data;	2045	my $md5 = Digest::MD5::md5_hex $data;
		2046	my $meta = "$RANDOMDIR/$md5.meta";
1820		2047
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2048	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2049	aio_write $fh, 0, (length $data), $data, 0;
		2050	undef $fh;
		2051	aio_rename "$meta~", $meta;
1823		2052
1824	$exit->slaying ("?random/$md5");	2053	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2054	$exit->msg (undef);
1826	}	2055	}
1827	}	2056	}
1828		2057
1829	sub cf::object::player::enter_exit {	2058	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2059	my ($self, $exit) = @_;
1831		2060
1832	return unless $self->type == cf::PLAYER;	2061	return unless $self->type == cf::PLAYER;
		2062
		2063	if ($exit->slaying eq "/!") {
		2064	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2065	# the problem is that $exit might not survive long enough
		2066	# so it needs to be done right now, right here
		2067	cf::sync_job { prepare_random_map $exit };
		2068	}
		2069
		2070	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2071	my $hp = $exit->stats->hp;
		2072	my $sp = $exit->stats->sp;
1833		2073
1834	$self->enter_link;	2074	$self->enter_link;
1835		2075
1836	(async {	2076	(async {
1837	$self->deactivate_recursive; # just to be sure	2077	$self->deactivate_recursive; # just to be sure
1838	unless (eval {	2078	unless (eval {
1839	prepare_random_map $exit	2079	$self->goto ($slaying, $hp, $sp);
1840	if $exit->slaying eq "/!";
1841
1842	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1843	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1844		2080
1845	1;	2081	1;
1846	}) {	2082	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2083	$self->message ("Something went wrong deep within the crossfire server. "
1848	. "I'll try to bring you back to the map you were before. "	2084	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2085	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2086	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2087
1852	warn "ERROR in enter_exit: $@";	2088	warn "ERROR in enter_exit: $@";
1853	$self->leave_link;	2089	$self->leave_link;
1854	}	2090	}
1855	})->prio (1);	2091	})->prio (1);
…		…
1868		2104
1869	sub cf::client::send_drawinfo {	2105	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2106	my ($self, $text, $flags) = @_;
1871		2107
1872	utf8::encode $text;	2108	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2109	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2110	}
1875		2111
		2112	=item $client->ext_event ($type, %msg)
		2113
		2114	Sends an exti event to the client.
		2115
		2116	=cut
		2117
		2118	sub cf::client::ext_event($$%) {
		2119	my ($self, $type, %msg) = @_;
		2120
		2121	$msg{msgtype} = "event_$type";
		2122	$self->send_packet ("ext " . cf::to_json \%msg);
		2123	}
1876		2124
1877	=item $success = $client->query ($flags, "text", \&cb)	2125	=item $success = $client->query ($flags, "text", \&cb)
1878		2126
1879	Queues a query to the client, calling the given callback with	2127	Queues a query to the client, calling the given callback with
1880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2128	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1909	# get handled first	2157	# get handled first
1910	my $queue = delete $ns->{query_queue}	2158	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	2159	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		2160
1913	(shift @$queue)->[1]->($msg);	2161	(shift @$queue)->[1]->($msg);
		2162	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		2163
1915	push @{ $ns->{query_queue} }, @$queue;	2164	push @{ $ns->{query_queue} }, @$queue;
1916		2165
1917	if (@{ $ns->{query_queue} } == @$queue) {	2166	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	2167	if (@$queue) {
…		…
1976		2225
1977	# here we export the classes and methods available to script code	2226	# here we export the classes and methods available to script code
1978		2227
1979	=pod	2228	=pod
1980		2229
1981	The following fucntions and emthods are available within a safe environment:	2230	The following functions and methods are available within a safe environment:
1982		2231
1983	cf::object contr pay_amount pay_player map	2232	cf::object contr pay_amount pay_player map
1984	cf::object::player player	2233	cf::object::player player
1985	cf::player peaceful	2234	cf::player peaceful
1986	cf::map trigger	2235	cf::map trigger
…		…
2071	#############################################################################	2320	#############################################################################
2072		2321
2073	=head2 EXTENSION DATABASE SUPPORT	2322	=head2 EXTENSION DATABASE SUPPORT
2074		2323
2075	Crossfire maintains a very simple database for extension use. It can	2324	Crossfire maintains a very simple database for extension use. It can
2076	currently store anything that can be serialised using Storable, which	2325	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2077	excludes objects.	2326	convert to/from binary).
2078		2327
2079	The parameter C<$family> should best start with the name of the extension	2328	The parameter C<$family> should best start with the name of the extension
2080	using it, it should be unique.	2329	using it, it should be unique.
2081		2330
2082	=over 4	2331	=over 4
2083		2332
2084	=item $hashref = cf::db_get $family
2085
2086	Return a hashref for use by the extension C<$family>, which can be
2087	modified. After modifications, you have to call C<cf::db_dirty> or
2088	C<cf::db_sync>.
2089
2090	=item $value = cf::db_get $family => $key	2333	=item $value = cf::db_get $family => $key
2091		2334
2092	Returns a single value from the database	2335	Returns a single value from the database.
2093
2094	=item cf::db_put $family => $hashref
2095
2096	Stores the given family hashref into the database. Updates are delayed, if
2097	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2098		2336
2099	=item cf::db_put $family => $key => $value	2337	=item cf::db_put $family => $key => $value
2100		2338
2101	Stores the given C<$value> in the family hash. Updates are delayed, if you	2339	Stores the given C<$value> in the family.
2102	want the data to be synced to disk immediately, use C<cf::db_sync>.
2103
2104	=item cf::db_dirty
2105
2106	Marks the database as dirty, to be updated at a later time.
2107
2108	=item cf::db_sync
2109
2110	Immediately write the database to disk I<if it is dirty>.
2111		2340
2112	=cut	2341	=cut
2113		2342
2114	our $DB;	2343	our $DB;
2115		2344
2116	{	2345	sub db_init {
2117	my $path = cf::localdir . "/database.pst";	2346	unless ($DB) {
		2347	$DB = BDB::db_create $DB_ENV;
2118		2348
2119	sub db_load() {	2349	cf::sync_job {
2120	$DB = stat $path ? Storable::retrieve $path : { };	2350	eval {
2121	}	2351	$DB->set_flags (BDB::CHKSUM);
2122		2352
2123	my $pid;	2353	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2124		2354	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2125	sub db_save() {	2355	cf::cleanup "db_open(db): $!" if $!;
2126	waitpid $pid, 0 if $pid;	2356	};
2127	if (0 == ($pid = fork)) {	2357	cf::cleanup "db_open(db): $@" if $@;
2128	$DB->{_meta}{version} = 1;
2129	Storable::nstore $DB, "$path~";
2130	rename "$path~", $path;
2131	cf::_exit 0 if defined $pid;
2132	}	2358	};
2133	}
2134
2135	my $dirty;
2136
2137	sub db_sync() {
2138	db_save if $dirty;
2139	undef $dirty;
2140	}
2141
2142	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2143	db_sync;
2144	});	2359	}
		2360	}
2145		2361
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}
2150
2151	sub db_get($;$) {	2362	sub db_get($$) {
2152	@_ >= 2	2363	my $key = "$_[0]/$_[1]";
2153	? $DB->{$_[0]}{$_[1]}
2154	: ($DB->{$_[0]} ||= { })
2155	}
2156		2364
		2365	cf::sync_job {
		2366	BDB::db_get $DB, undef, $key, my $data;
		2367
		2368	$! ? ()
		2369	: $data
		2370	}
		2371	}
		2372
2157	sub db_put($$;$) {	2373	sub db_put($$$) {
2158	if (@_ >= 3) {	2374	BDB::dbreq_pri 4;
2159	$DB->{$_[0]}{$_[1]} = $_[2];	2375	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2160	} else {	2376	}
2161	$DB->{$_[0]} = $_[1];
2162	}
2163	db_dirty;
2164	}
2165		2377
2166	cf::global->attach (	2378	=item cf::cache $id => [$paths...], $processversion => $process
2167	prio => 10000,	2379
2168	on_cleanup => sub {	2380	Generic caching function that returns the value of the resource $id,
2169	db_sync;	2381	caching and regenerating as required.
		2382
		2383	This function can block.
		2384
		2385	=cut
		2386
		2387	sub cache {
		2388	my ($id, $src, $processversion, $process) = @_;
		2389
		2390	my $meta =
		2391	join "\x00",
		2392	$processversion,
		2393	map {
		2394	aio_stat $_
		2395	and Carp::croak "$_: $!";
		2396
		2397	($_, (stat _)[7,9])
		2398	} @$src;
		2399
		2400	my $dbmeta = db_get cache => "$id/meta";
		2401	if ($dbmeta ne $meta) {
		2402	# changed, we may need to process
		2403
		2404	my @data;
		2405	my $md5;
		2406
		2407	for (0 .. $#$src) {
		2408	0 <= aio_load $src->[$_], $data[$_]
		2409	or Carp::croak "$src->[$_]: $!";
2170	},	2410	}
2171	);	2411
		2412	# if processing is expensive, check
		2413	# checksum first
		2414	if (1) {
		2415	$md5 =
		2416	join "\x00",
		2417	$processversion,
		2418	map {
		2419	Coro::cede;
		2420	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2421	} 0.. $#$src;
		2422
		2423
		2424	my $dbmd5 = db_get cache => "$id/md5";
		2425	if ($dbmd5 eq $md5) {
		2426	db_put cache => "$id/meta", $meta;
		2427
		2428	return db_get cache => "$id/data";
		2429	}
		2430	}
		2431
		2432	my $t1 = Time::HiRes::time;
		2433	my $data = $process->(\@data);
		2434	my $t2 = Time::HiRes::time;
		2435
		2436	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2437
		2438	db_put cache => "$id/data", $data;
		2439	db_put cache => "$id/md5" , $md5;
		2440	db_put cache => "$id/meta", $meta;
		2441
		2442	return $data;
		2443	}
		2444
		2445	db_get cache => "$id/data"
2172	}	2446	}
		2447
		2448	=item fork_call { }, $args
		2449
		2450	Executes the given code block with the given arguments in a seperate
		2451	process, returning the results. Everything must be serialisable with
		2452	Coro::Storable. May, of course, block. Note that the executed sub may
		2453	never block itself or use any form of Event handling.
		2454
		2455	=cut
		2456
		2457	sub fork_call(&@) {
		2458	my ($cb, @args) = @_;
		2459
		2460	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2461	# or die "socketpair: $!";
		2462	pipe my $fh1, my $fh2
		2463	or die "pipe: $!";
		2464
		2465	if (my $pid = fork) {
		2466	close $fh2;
		2467
		2468	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2469	$res = Coro::Storable::thaw $res;
		2470
		2471	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2472
		2473	die $$res unless "ARRAY" eq ref $res;
		2474
		2475	return wantarray ? @$res : $res->[-1];
		2476	} else {
		2477	reset_signals;
		2478	local $SIG{__WARN__};
		2479	local $SIG{__DIE__};
		2480	eval {
		2481	close $fh1;
		2482
		2483	my @res = eval { $cb->(@args) };
		2484	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2485	};
		2486
		2487	warn $@ if $@;
		2488	_exit 0;
		2489	}
		2490	}
		2491
		2492
2173		2493
2174	#############################################################################	2494	#############################################################################
2175	# the server's main()	2495	# the server's init and main functions
		2496
		2497	sub load_facedata($) {
		2498	my ($path) = @_;
		2499
		2500	warn "loading facedata from $path\n";
		2501
		2502	my $facedata;
		2503	0 < aio_load $path, $facedata
		2504	or die "$path: $!";
		2505
		2506	$facedata = Coro::Storable::thaw $facedata;
		2507
		2508	$facedata->{version} == 2
		2509	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2510
		2511	{
		2512	my $faces = $facedata->{faceinfo};
		2513
		2514	while (my ($face, $info) = each %$faces) {
		2515	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2516	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2517	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2518	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2519	Coro::cede;
		2520	}
		2521
		2522	while (my ($face, $info) = each %$faces) {
		2523	next unless $info->{smooth};
		2524	my $idx = cf::face::find $face
		2525	or next;
		2526	if (my $smooth = cf::face::find $info->{smooth}) {
		2527	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2528	} else {
		2529	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2530	}
		2531	Coro::cede;
		2532	}
		2533	}
		2534
		2535	{
		2536	my $anims = $facedata->{animinfo};
		2537
		2538	while (my ($anim, $info) = each %$anims) {
		2539	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2540	Coro::cede;
		2541	}
		2542
		2543	cf::anim::invalidate_all; # d'oh
		2544	}
		2545
		2546	1
		2547	}
		2548
		2549	sub reload_regions {
		2550	load_resource_file "$MAPDIR/regions"
		2551	or die "unable to load regions file\n";
		2552	}
		2553
		2554	sub reload_facedata {
		2555	load_facedata "$DATADIR/facedata"
		2556	or die "unable to load facedata\n";
		2557	}
		2558
		2559	sub reload_archetypes {
		2560	load_resource_file "$DATADIR/archetypes"
		2561	or die "unable to load archetypes\n";
		2562	}
		2563
		2564	sub reload_treasures {
		2565	load_resource_file "$DATADIR/treasures"
		2566	or die "unable to load treasurelists\n";
		2567	}
		2568
		2569	sub reload_resources {
		2570	warn "reloading resource files...\n";
		2571
		2572	reload_regions;
		2573	reload_facedata;
		2574	reload_archetypes;
		2575	reload_treasures;
		2576
		2577	warn "finished reloading resource files\n";
		2578	}
		2579
		2580	sub init {
		2581	reload_resources;
		2582	}
2176		2583
2177	sub cfg_load {	2584	sub cfg_load {
2178	open my $fh, "<:utf8", cf::confdir . "/config"	2585	open my $fh, "<:utf8", "$CONFDIR/config"
2179	or return;	2586	or return;
2180		2587
2181	local $/;	2588	local $/;
2182	*CFG = YAML::Syck::Load <$fh>;	2589	*CFG = YAML::Syck::Load <$fh>;
2183		2590
…		…
2197		2604
2198	sub main {	2605	sub main {
2199	# we must not ever block the main coroutine	2606	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	2607	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2608	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2609	(async {
2202	async { Event::one_event };	2610	Event::one_event;
		2611	})->prio (Coro::PRIO_MAX);
2203	};	2612	};
2204		2613
2205	cfg_load;	2614	cfg_load;
2206	db_load;	2615	db_init;
2207	load_extensions;	2616	load_extensions;
		2617
		2618	$TICK_WATCHER->start;
2208	Event::loop;	2619	Event::loop;
2209	}	2620	}
2210		2621
2211	#############################################################################	2622	#############################################################################
2212	# initialisation	2623	# initialisation and cleanup
2213		2624
		2625	# install some emergency cleanup handlers
		2626	BEGIN {
		2627	for my $signal (qw(INT HUP TERM)) {
		2628	Event->signal (
		2629	reentrant => 0,
		2630	data => WF_AUTOCANCEL,
		2631	signal => $signal,
		2632	prio => 0,
		2633	cb => sub {
		2634	cf::cleanup "SIG$signal";
		2635	},
		2636	);
		2637	}
		2638	}
		2639
		2640	sub emergency_save() {
		2641	my $freeze_guard = cf::freeze_mainloop;
		2642
		2643	warn "enter emergency perl save\n";
		2644
		2645	cf::sync_job {
		2646	# use a peculiar iteration method to avoid tripping on perl
		2647	# refcount bugs in for. also avoids problems with players
		2648	# and maps saved/destroyed asynchronously.
		2649	warn "begin emergency player save\n";
		2650	for my $login (keys %cf::PLAYER) {
		2651	my $pl = $cf::PLAYER{$login} or next;
		2652	$pl->valid or next;
		2653	$pl->save;
		2654	}
		2655	warn "end emergency player save\n";
		2656
		2657	warn "begin emergency map save\n";
		2658	for my $path (keys %cf::MAP) {
		2659	my $map = $cf::MAP{$path} or next;
		2660	$map->valid or next;
		2661	$map->save;
		2662	}
		2663	warn "end emergency map save\n";
		2664
		2665	warn "begin emergency database checkpoint\n";
		2666	BDB::db_env_txn_checkpoint $DB_ENV;
		2667	warn "end emergency database checkpoint\n";
		2668	};
		2669
		2670	warn "leave emergency perl save\n";
		2671	}
		2672
		2673	sub post_cleanup {
		2674	my ($make_core) = @_;
		2675
		2676	warn Carp::longmess "post_cleanup backtrace"
		2677	if $make_core;
		2678	}
		2679
2214	sub reload() {	2680	sub do_reload_perl() {
2215	# can/must only be called in main	2681	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	2682	if ($Coro::current != $Coro::main) {
2217	warn "can only reload from main coroutine\n";	2683	warn "can only reload from main coroutine";
2218	return;	2684	return;
2219	}	2685	}
2220		2686
2221	warn "reloading...";	2687	warn "reloading...";
2222		2688
2223	my $guard = freeze_mainloop;	2689	warn "entering sync_job";
		2690
		2691	cf::sync_job {
		2692	cf::write_runtime; # external watchdog should not bark
2224	cf::emergency_save;	2693	cf::emergency_save;
		2694	cf::write_runtime; # external watchdog should not bark
2225		2695
2226	eval {	2696	warn "syncing database to disk";
		2697	BDB::db_env_txn_checkpoint $DB_ENV;
		2698
2227	# if anything goes wrong in here, we should simply crash as we already saved	2699	# if anything goes wrong in here, we should simply crash as we already saved
2228		2700
2229	# cancel all watchers	2701	warn "cancelling all WF_AUTOCANCEL watchers";
2230	for (Event::all_watchers) {	2702	for (Event::all_watchers) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;	2703	$_->cancel if $_->data & WF_AUTOCANCEL;
2232	}	2704	}
2233		2705
		2706	warn "flushing outstanding aio requests";
		2707	for (;;) {
		2708	BDB::flush;
		2709	IO::AIO::flush;
		2710	Coro::cede;
		2711	last unless IO::AIO::nreqs || BDB::nreqs;
		2712	warn "iterate...";
		2713	}
		2714
		2715	++$RELOAD;
		2716
2234	# cancel all extension coros	2717	warn "cancelling all extension coros";
2235	$_->cancel for values %EXT_CORO;	2718	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	2719	%EXT_CORO = ();
2237		2720
2238	# unload all extensions	2721	warn "removing commands";
2239	for (@exts) {	2722	%COMMAND = ();
		2723
		2724	warn "removing ext commands";
		2725	%EXTCMD = ();
		2726
		2727	warn "unloading/nuking all extensions";
		2728	for my $pkg (@EXTS) {
2240	warn "unloading <$_>";	2729	warn "... unloading $pkg";
2241	unload_extension $_;	2730
		2731	if (my $cb = $pkg->can ("unload")) {
		2732	eval {
		2733	$cb->($pkg);
		2734	1
		2735	} or warn "$pkg unloaded, but with errors: $@";
2242	}	2736	}
2243		2737
		2738	warn "... nuking $pkg";
		2739	Symbol::delete_package $pkg;
		2740	}
		2741
2244	# unload all modules loaded from $LIBDIR	2742	warn "unloading all perl modules loaded from $LIBDIR";
2245	while (my ($k, $v) = each %INC) {	2743	while (my ($k, $v) = each %INC) {
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2744	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2247		2745
2248	warn "removing <$k>";	2746	warn "... unloading $k";
2249	delete $INC{$k};	2747	delete $INC{$k};
2250		2748
2251	$k =~ s/\.pm$//;	2749	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;	2750	$k =~ s/\//::/g;
2253		2751
…		…
2256	}	2754	}
2257		2755
2258	Symbol::delete_package $k;	2756	Symbol::delete_package $k;
2259	}	2757	}
2260		2758
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	2759	warn "getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	2760	Symbol::delete_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2761	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		2762
2269	# remove register_script_function callbacks
2270	# TODO
2271
2272	# unload cf.pm "a bit"	2763	warn "unloading cf.pm \"a bit\"";
2273	delete $INC{"cf.pm"};	2764	delete $INC{"cf.pm"};
		2765	delete $INC{"cf/pod.pm"};
2274		2766
2275	# don't, removes xs symbols, too,	2767	# don't, removes xs symbols, too,
2276	# and global variables created in xs	2768	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	2769	#Symbol::delete_package __PACKAGE__;
2278		2770
2279	# reload cf.pm	2771	warn "unload completed, starting to reload now";
		2772
2280	warn "reloading cf.pm";	2773	warn "reloading cf.pm";
2281	require cf;	2774	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2775	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2283		2776
2284	# load config and database again	2777	warn "loading config and database again";
2285	cf::cfg_load;	2778	cf::cfg_load;
2286	cf::db_load;
2287		2779
2288	# load extensions
2289	warn "load extensions";	2780	warn "loading extensions";
2290	cf::load_extensions;	2781	cf::load_extensions;
2291		2782
2292	# reattach attachments to objects	2783	warn "reattaching attachments to objects/players";
2293	warn "reattach";	2784	_global_reattach; # objects, sockets
2294	_global_reattach;	2785	warn "reattaching attachments to maps";
2295	reattach $_ for values %MAP;	2786	reattach $_ for values %MAP;
2296	};	2787	warn "reattaching attachments to players";
		2788	reattach $_ for values %PLAYER;
2297		2789
2298	if ($@) {	2790	warn "leaving sync_job";
		2791
		2792	1
		2793	} or do {
2299	warn $@;	2794	warn $@;
2300	warn "error while reloading, exiting.";	2795	warn "error while reloading, exiting.";
2301	exit 1;	2796	exit 1;
2302	}	2797	};
2303		2798
2304	warn "reloaded successfully";	2799	warn "reloaded";
2305	};	2800	};
2306		2801
2307	#############################################################################	2802	our $RELOAD_WATCHER; # used only during reload
2308		2803
2309	unless ($LINK_MAP) {	2804	sub reload_perl() {
2310	$LINK_MAP = cf::map::new;	2805	# doing reload synchronously and two reloads happen back-to-back,
		2806	# coro crashes during coro_state_free->destroy here.
2311		2807
2312	$LINK_MAP->width (41);	2808	$RELOAD_WATCHER ||= Event->timer (
2313	$LINK_MAP->height (41);	2809	reentrant => 0,
2314	$LINK_MAP->alloc;
2315	$LINK_MAP->path ("{link}");
2316	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2317	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2318
2319	# dirty hack because... archetypes are not yet loaded
2320	Event->timer (
2321	after => 10,	2810	after => 0,
		2811	data => WF_AUTOCANCEL,
2322	cb => sub {	2812	cb => sub {
2323	$_[0]->w->cancel;	2813	do_reload_perl;
2324		2814	undef $RELOAD_WATCHER;
2325	# provide some exits "home"
2326	my $exit = cf::object::new "exit";
2327
2328	$exit->slaying ($EMERGENCY_POSITION->[0]);
2329	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2330	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2331
2332	$LINK_MAP->insert ($exit->clone, 19, 19);
2333	$LINK_MAP->insert ($exit->clone, 19, 20);
2334	$LINK_MAP->insert ($exit->clone, 19, 21);
2335	$LINK_MAP->insert ($exit->clone, 20, 19);
2336	$LINK_MAP->insert ($exit->clone, 20, 21);
2337	$LINK_MAP->insert ($exit->clone, 21, 19);
2338	$LINK_MAP->insert ($exit->clone, 21, 20);
2339	$LINK_MAP->insert ($exit->clone, 21, 21);
2340
2341	$exit->destroy;
2342	});	2815	},
2343		2816	);
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	2817	}
2349
2350	register "<global>", __PACKAGE__;
2351		2818
2352	register_command "reload" => sub {	2819	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	2820	my ($who, $arg) = @_;
2354		2821
2355	if ($who->flag (FLAG_WIZ)) {	2822	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	2823	$who->message ("reloading server.");
		2824	async { reload_perl };
2359	}	2825	}
2360	};	2826	};
2361		2827
2362	unshift @INC, $LIBDIR;	2828	unshift @INC, $LIBDIR;
		2829
		2830	my $bug_warning = 0;
		2831
		2832	our @WAIT_FOR_TICK;
		2833	our @WAIT_FOR_TICK_BEGIN;
		2834
		2835	sub wait_for_tick {
		2836	return unless $TICK_WATCHER->is_active;
		2837	return if $Coro::current == $Coro::main;
		2838
		2839	my $signal = new Coro::Signal;
		2840	push @WAIT_FOR_TICK, $signal;
		2841	$signal->wait;
		2842	}
		2843
		2844	sub wait_for_tick_begin {
		2845	return unless $TICK_WATCHER->is_active;
		2846	return if $Coro::current == $Coro::main;
		2847
		2848	my $signal = new Coro::Signal;
		2849	push @WAIT_FOR_TICK_BEGIN, $signal;
		2850	$signal->wait;
		2851	}
2363		2852
2364	$TICK_WATCHER = Event->timer (	2853	$TICK_WATCHER = Event->timer (
2365	reentrant => 0,	2854	reentrant => 0,
		2855	parked => 1,
2366	prio => 0,	2856	prio => 0,
2367	at => $NEXT_TICK || $TICK,	2857	at => $NEXT_TICK || $TICK,
2368	data => WF_AUTOCANCEL,	2858	data => WF_AUTOCANCEL,
2369	cb => sub {	2859	cb => sub {
		2860	if ($Coro::current != $Coro::main) {
		2861	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2862	unless ++$bug_warning > 10;
		2863	return;
		2864	}
		2865
		2866	$NOW = $tick_start = Event::time;
		2867
2370	cf::server_tick; # one server iteration	2868	cf::server_tick; # one server iteration
		2869
2371	$RUNTIME += $TICK;	2870	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;	2871	$NEXT_TICK += $TICK;
2373		2872
		2873	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2874	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2875	Coro::async_pool {
		2876	write_runtime
		2877	or warn "ERROR: unable to write runtime file: $!";
		2878	};
		2879	}
		2880
		2881	# my $AFTER = Event::time;
		2882	# warn $AFTER - $NOW;#d#
		2883
		2884	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2885	$sig->send;
		2886	}
		2887	while (my $sig = shift @WAIT_FOR_TICK) {
		2888	$sig->send;
		2889	}
		2890
		2891	$NOW = Event::time;
		2892
2374	# if we are delayed by four ticks or more, skip them all	2893	# if we are delayed by four ticks or more, skip them all
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2894	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2376		2895
2377	$TICK_WATCHER->at ($NEXT_TICK);	2896	$TICK_WATCHER->at ($NEXT_TICK);
2378	$TICK_WATCHER->start;	2897	$TICK_WATCHER->start;
		2898
		2899	$LOAD = ($NOW - $tick_start) / $TICK;
		2900	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2901
		2902	_post_tick;
		2903
		2904
2379	},	2905	},
2380	);	2906	);
2381		2907
		2908	{
2382	IO::AIO::max_poll_time $TICK * 0.2;	2909	BDB::max_poll_time $TICK * 0.1;
2383		2910	$BDB_POLL_WATCHER = Event->io (
2384	Event->io (	2911	reentrant => 0,
2385	fd => IO::AIO::poll_fileno,	2912	fd => BDB::poll_fileno,
2386	poll => 'r',	2913	poll => 'r',
2387	prio => 5,	2914	prio => 0,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391
2392	Event->timer (
2393	data => WF_AUTOCANCEL,	2915	data => WF_AUTOCANCEL,
2394	after => 0,	2916	cb => \&BDB::poll_cb,
2395	interval => 10,	2917	);
2396	cb => sub {	2918	BDB::min_parallel 8;
2397	(Coro::unblock_sub {	2919
2398	write_runtime	2920	BDB::set_sync_prepare {
2399	or warn "ERROR: unable to write runtime file: $!";	2921	my $status;
		2922	my $current = $Coro::current;
		2923	(
		2924	sub {
		2925	$status = $!;
		2926	$current->ready; undef $current;
		2927	},
		2928	sub {
		2929	Coro::schedule while defined $current;
		2930	$! = $status;
		2931	},
		2932	)
		2933	};
		2934
		2935	unless ($DB_ENV) {
		2936	$DB_ENV = BDB::db_env_create;
		2937
		2938	cf::sync_job {
		2939	eval {
		2940	BDB::db_env_open
		2941	$DB_ENV,
		2942	$BDBDIR,
		2943	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2944	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2945	0666;
		2946
		2947	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2948
		2949	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2950	$DB_ENV->set_lk_detect;
		2951	};
		2952
		2953	cf::cleanup "db_env_open(db): $@" if $@;
2400	})->();	2954	};
2401	},	2955	}
2402	);	2956	}
		2957
		2958	{
		2959	IO::AIO::min_parallel 8;
		2960
		2961	undef $Coro::AIO::WATCHER;
		2962	IO::AIO::max_poll_time $TICK * 0.1;
		2963	$AIO_POLL_WATCHER = Event->io (
		2964	reentrant => 0,
		2965	data => WF_AUTOCANCEL,
		2966	fd => IO::AIO::poll_fileno,
		2967	poll => 'r',
		2968	prio => 6,
		2969	cb => \&IO::AIO::poll_cb,
		2970	);
		2971	}
		2972
		2973	my $_log_backtrace;
		2974
		2975	sub _log_backtrace {
		2976	my ($msg, @addr) = @_;
		2977
		2978	$msg =~ s/\n//;
		2979
		2980	# limit the # of concurrent backtraces
		2981	if ($_log_backtrace < 2) {
		2982	++$_log_backtrace;
		2983	async {
		2984	my @bt = fork_call {
		2985	@addr = map { sprintf "%x", $_ } @addr;
		2986	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2987	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2988	or die "addr2line: $!";
		2989
		2990	my @funcs;
		2991	my @res = <$fh>;
		2992	chomp for @res;
		2993	while (@res) {
		2994	my ($func, $line) = splice @res, 0, 2, ();
		2995	push @funcs, "[$func] $line";
		2996	}
		2997
		2998	@funcs
		2999	};
		3000
		3001	LOG llevInfo, "[ABT] $msg\n";
		3002	LOG llevInfo, "[ABT] $_\n" for @bt;
		3003	--$_log_backtrace;
		3004	};
		3005	} else {
		3006	LOG llevInfo, "[ABT] $msg\n";
		3007	LOG llevInfo, "[ABT] [suppressed]\n";
		3008	}
		3009	}
		3010
		3011	# load additional modules
		3012	use cf::pod;
2403		3013
2404	END { cf::emergency_save }	3014	END { cf::emergency_save }
2405		3015
2406	1	3016	1
2407		3017

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