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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 1.270 by root, Sat May 26 15:44:06 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
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 && $self->map->{path} ne "{link}";
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) = @_;
		1916
		1917	return unless $self->contr->active;
1693		1918
1694	my $link_pos = delete $self->{_link_pos};	1919	my $link_pos = delete $self->{_link_pos};
1695		1920
1696	unless ($map) {	1921	unless ($map) {
1697	# restore original map position	1922	# restore original map position
…		…
1711	# use -1 or undef as default coordinates, not 0, 0	1936	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	1937	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	1938	if $x <=0 && $y <= 0;
1714		1939
1715	$map->load;	1940	$map->load;
		1941	$map->load_diag;
1716		1942
1717	return unless $self->contr->active;	1943	return unless $self->contr->active;
1718	$self->activate_recursive;	1944	$self->activate_recursive;
		1945
		1946	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1719	$self->enter_map ($map, $x, $y);	1947	$self->enter_map ($map, $x, $y);
1720	}	1948	}
1721		1949
1722	cf::player->attach (
1723	on_logout => sub {
1724	my ($pl) = @_;
1725
1726	# abort map switching before logout
1727	if ($pl->ob->{_link_pos}) {
1728	cf::sync_job {
1729	$pl->ob->leave_link
1730	};
1731	}
1732	},
1733	on_login => sub {
1734	my ($pl) = @_;
1735
1736	# try to abort aborted map switching on player login :)
1737	# should happen only on crashes
1738	if ($pl->ob->{_link_pos}) {
1739	$pl->ob->enter_link;
1740	(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,
1744	"There was an internal problem at your last logout, "
1745	. "the server will try to bring you to your intended destination in a second.",
1746	cf::NDI_RED);
1747	Coro::Timer::sleep 1;
1748	$pl->ob->leave_link;
1749	})->prio (2);
1750	}
1751	},
1752	);
1753
1754	=item $player_object->goto ($path, $x, $y)	1950	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1755		1951
		1952	Moves the player to the given map-path and coordinates by first freezing
		1953	her, loading and preparing them map, calling the provided $check callback
		1954	that has to return the map if sucecssful, and then unfreezes the player on
		1955	the new (success) or old (failed) map position.
		1956
1756	=cut	1957	=cut
		1958
		1959	our $GOTOGEN;
1757		1960
1758	sub cf::object::player::goto {	1961	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	1962	my ($self, $path, $x, $y, $check) = @_;
1760		1963
1761	$path = new cf::path $path;	1964	# do generation counting so two concurrent goto's will be executed in-order
1762	$path ne "/" or Carp::cluck ("oy");#d#	1965	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		1966
1764	$self->enter_link;	1967	$self->enter_link;
1765		1968
1766	(async {	1969	(async {
		1970	my $map = eval {
1767	my $map = cf::map::find $path->as_string;	1971	my $map = cf::map::find $path;
		1972
		1973	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	1974	$map = $map->customise_for ($self);
1769		1975	$map = $check->($map) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	1976	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1977	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1978	}
1774		1979
		1980	$map
		1981	};
		1982
		1983	if ($@) {
		1984	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1985	LOG llevError | logBacktrace, Carp::longmess $@;
		1986	}
		1987
		1988	if ($gen == $self->{_goto_generation}) {
		1989	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	1990	$self->leave_link ($map, $x, $y);
		1991	}
1776	})->prio (1);	1992	})->prio (1);
1777	}	1993	}
1778		1994
1779	=item $player_object->enter_exit ($exit_object)	1995	=item $player_object->enter_exit ($exit_object)
1780		1996
…		…
1782		1998
1783	sub parse_random_map_params {	1999	sub parse_random_map_params {
1784	my ($spec) = @_;	2000	my ($spec) = @_;
1785		2001
1786	my $rmp = { # defaults	2002	my $rmp = { # defaults
1787	xsize => 10,	2003	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2004	ysize => (cf::rndm 15, 40),
		2005	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2006	#layout => string,
1789	};	2007	};
1790		2008
1791	for (split /\n/, $spec) {	2009	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2010	my ($k, $v) = split /\s+/, $_, 2;
1793		2011
…		…
1797	$rmp	2015	$rmp
1798	}	2016	}
1799		2017
1800	sub prepare_random_map {	2018	sub prepare_random_map {
1801	my ($exit) = @_;	2019	my ($exit) = @_;
		2020
		2021	my $guard = cf::lock_acquire "exit_prepare:$exit";
1802		2022
1803	# all this does is basically replace the /! path by	2023	# all this does is basically replace the /! path by
1804	# a new random map path (?random/...) with a seed	2024	# a new random map path (?random/...) with a seed
1805	# that depends on the exit object	2025	# that depends on the exit object
1806		2026
1807	my $rmp = parse_random_map_params $exit->msg;	2027	my $rmp = parse_random_map_params $exit->msg;
1808		2028
1809	if ($exit->map) {	2029	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2030	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2031	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2032	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2033	$rmp->{origin_y} = $exit->y;
1814	}	2034	}
1815		2035
1816	$rmp->{random_seed} ||= $exit->random_seed;	2036	$rmp->{random_seed} ||= $exit->random_seed;
1817		2037
1818	my $data = cf::to_json $rmp;	2038	my $data = cf::to_json $rmp;
1819	my $md5 = Digest::MD5::md5_hex $data;	2039	my $md5 = Digest::MD5::md5_hex $data;
		2040	my $meta = "$RANDOMDIR/$md5.meta";
1820		2041
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2042	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2043	aio_write $fh, 0, (length $data), $data, 0;
		2044	undef $fh;
		2045	aio_rename "$meta~", $meta;
1823		2046
1824	$exit->slaying ("?random/$md5");	2047	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2048	$exit->msg (undef);
1826	}	2049	}
1827	}	2050	}
1828		2051
1829	sub cf::object::player::enter_exit {	2052	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2053	my ($self, $exit) = @_;
1831		2054
1832	return unless $self->type == cf::PLAYER;	2055	return unless $self->type == cf::PLAYER;
		2056
		2057	if ($exit->slaying eq "/!") {
		2058	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2059	# the problem is that $exit might not survive long enough
		2060	# so it needs to be done right now, right here
		2061	cf::sync_job { prepare_random_map $exit };
		2062	}
		2063
		2064	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2065	my $hp = $exit->stats->hp;
		2066	my $sp = $exit->stats->sp;
1833		2067
1834	$self->enter_link;	2068	$self->enter_link;
1835		2069
1836	(async {	2070	(async {
1837	$self->deactivate_recursive; # just to be sure	2071	$self->deactivate_recursive; # just to be sure
1838	unless (eval {	2072	unless (eval {
1839	prepare_random_map $exit	2073	$self->goto ($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		2074
1845	1;	2075	1;
1846	}) {	2076	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2077	$self->message ("Something went wrong deep within the crossfire server. "
1848	. "I'll try to bring you back to the map you were before. "	2078	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2079	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2080	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2081
1852	warn "ERROR in enter_exit: $@";	2082	warn "ERROR in enter_exit: $@";
1853	$self->leave_link;	2083	$self->leave_link;
1854	}	2084	}
1855	})->prio (1);	2085	})->prio (1);
…		…
1868		2098
1869	sub cf::client::send_drawinfo {	2099	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2100	my ($self, $text, $flags) = @_;
1871		2101
1872	utf8::encode $text;	2102	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2103	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2104	}
1875		2105
		2106	=item $client->ext_event ($type, %msg)
		2107
		2108	Sends an exti event to the client.
		2109
		2110	=cut
		2111
		2112	sub cf::client::ext_event($$%) {
		2113	my ($self, $type, %msg) = @_;
		2114
		2115	$msg{msgtype} = "event_$type";
		2116	$self->send_packet ("ext " . cf::to_json \%msg);
		2117	}
1876		2118
1877	=item $success = $client->query ($flags, "text", \&cb)	2119	=item $success = $client->query ($flags, "text", \&cb)
1878		2120
1879	Queues a query to the client, calling the given callback with	2121	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>,	2122	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1909	# get handled first	2151	# get handled first
1910	my $queue = delete $ns->{query_queue}	2152	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	2153	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		2154
1913	(shift @$queue)->[1]->($msg);	2155	(shift @$queue)->[1]->($msg);
		2156	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		2157
1915	push @{ $ns->{query_queue} }, @$queue;	2158	push @{ $ns->{query_queue} }, @$queue;
1916		2159
1917	if (@{ $ns->{query_queue} } == @$queue) {	2160	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	2161	if (@$queue) {
…		…
1976		2219
1977	# here we export the classes and methods available to script code	2220	# here we export the classes and methods available to script code
1978		2221
1979	=pod	2222	=pod
1980		2223
1981	The following fucntions and emthods are available within a safe environment:	2224	The following functions and methods are available within a safe environment:
1982		2225
1983	cf::object contr pay_amount pay_player map	2226	cf::object contr pay_amount pay_player map
1984	cf::object::player player	2227	cf::object::player player
1985	cf::player peaceful	2228	cf::player peaceful
1986	cf::map trigger	2229	cf::map trigger
…		…
2071	#############################################################################	2314	#############################################################################
2072		2315
2073	=head2 EXTENSION DATABASE SUPPORT	2316	=head2 EXTENSION DATABASE SUPPORT
2074		2317
2075	Crossfire maintains a very simple database for extension use. It can	2318	Crossfire maintains a very simple database for extension use. It can
2076	currently store anything that can be serialised using Storable, which	2319	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2077	excludes objects.	2320	convert to/from binary).
2078		2321
2079	The parameter C<$family> should best start with the name of the extension	2322	The parameter C<$family> should best start with the name of the extension
2080	using it, it should be unique.	2323	using it, it should be unique.
2081		2324
2082	=over 4	2325	=over 4
2083		2326
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	2327	=item $value = cf::db_get $family => $key
2091		2328
2092	Returns a single value from the database	2329	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		2330
2099	=item cf::db_put $family => $key => $value	2331	=item cf::db_put $family => $key => $value
2100		2332
2101	Stores the given C<$value> in the family hash. Updates are delayed, if you	2333	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		2334
2112	=cut	2335	=cut
2113		2336
2114	our $DB;	2337	our $DB;
2115		2338
2116	{	2339	sub db_init {
2117	my $path = cf::localdir . "/database.pst";	2340	unless ($DB) {
		2341	$DB = BDB::db_create $DB_ENV;
2118		2342
2119	sub db_load() {	2343	cf::sync_job {
2120	$DB = stat $path ? Storable::retrieve $path : { };	2344	eval {
2121	}	2345	$DB->set_flags (BDB::CHKSUM);
2122		2346
2123	my $pid;	2347	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2124		2348	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2125	sub db_save() {	2349	cf::cleanup "db_open(db): $!" if $!;
2126	waitpid $pid, 0 if $pid;	2350	};
2127	if (0 == ($pid = fork)) {	2351	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	}	2352	};
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	});	2353	}
		2354	}
2145		2355
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}
2150
2151	sub db_get($;$) {	2356	sub db_get($$) {
2152	@_ >= 2	2357	my $key = "$_[0]/$_[1]";
2153	? $DB->{$_[0]}{$_[1]}
2154	: ($DB->{$_[0]} ||= { })
2155	}
2156		2358
		2359	cf::sync_job {
		2360	BDB::db_get $DB, undef, $key, my $data;
		2361
		2362	$! ? ()
		2363	: $data
		2364	}
		2365	}
		2366
2157	sub db_put($$;$) {	2367	sub db_put($$$) {
2158	if (@_ >= 3) {	2368	BDB::dbreq_pri 4;
2159	$DB->{$_[0]}{$_[1]} = $_[2];	2369	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2160	} else {	2370	}
2161	$DB->{$_[0]} = $_[1];
2162	}
2163	db_dirty;
2164	}
2165		2371
2166	cf::global->attach (	2372	=item cf::cache $id => [$paths...], $processversion => $process
2167	prio => 10000,	2373
2168	on_cleanup => sub {	2374	Generic caching function that returns the value of the resource $id,
2169	db_sync;	2375	caching and regenerating as required.
		2376
		2377	This function can block.
		2378
		2379	=cut
		2380
		2381	sub cache {
		2382	my ($id, $src, $processversion, $process) = @_;
		2383
		2384	my $meta =
		2385	join "\x00",
		2386	$processversion,
		2387	map {
		2388	aio_stat $_
		2389	and Carp::croak "$_: $!";
		2390
		2391	($_, (stat _)[7,9])
		2392	} @$src;
		2393
		2394	my $dbmeta = db_get cache => "$id/meta";
		2395	if ($dbmeta ne $meta) {
		2396	# changed, we may need to process
		2397
		2398	my @data;
		2399	my $md5;
		2400
		2401	for (0 .. $#$src) {
		2402	0 <= aio_load $src->[$_], $data[$_]
		2403	or Carp::croak "$src->[$_]: $!";
2170	},	2404	}
2171	);	2405
		2406	# if processing is expensive, check
		2407	# checksum first
		2408	if (1) {
		2409	$md5 =
		2410	join "\x00",
		2411	$processversion,
		2412	map {
		2413	Coro::cede;
		2414	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2415	} 0.. $#$src;
		2416
		2417
		2418	my $dbmd5 = db_get cache => "$id/md5";
		2419	if ($dbmd5 eq $md5) {
		2420	db_put cache => "$id/meta", $meta;
		2421
		2422	return db_get cache => "$id/data";
		2423	}
		2424	}
		2425
		2426	my $t1 = Time::HiRes::time;
		2427	my $data = $process->(\@data);
		2428	my $t2 = Time::HiRes::time;
		2429
		2430	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2431
		2432	db_put cache => "$id/data", $data;
		2433	db_put cache => "$id/md5" , $md5;
		2434	db_put cache => "$id/meta", $meta;
		2435
		2436	return $data;
		2437	}
		2438
		2439	db_get cache => "$id/data"
2172	}	2440	}
		2441
		2442	=item fork_call { }, $args
		2443
		2444	Executes the given code block with the given arguments in a seperate
		2445	process, returning the results. Everything must be serialisable with
		2446	Coro::Storable. May, of course, block. Note that the executed sub may
		2447	never block itself or use any form of Event handling.
		2448
		2449	=cut
		2450
		2451	sub fork_call(&@) {
		2452	my ($cb, @args) = @_;
		2453
		2454	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2455	# or die "socketpair: $!";
		2456	pipe my $fh1, my $fh2
		2457	or die "pipe: $!";
		2458
		2459	if (my $pid = fork) {
		2460	close $fh2;
		2461
		2462	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2463	$res = Coro::Storable::thaw $res;
		2464
		2465	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2466
		2467	die $$res unless "ARRAY" eq ref $res;
		2468
		2469	return wantarray ? @$res : $res->[-1];
		2470	} else {
		2471	reset_signals;
		2472	local $SIG{__WARN__};
		2473	local $SIG{__DIE__};
		2474	eval {
		2475	close $fh1;
		2476
		2477	my @res = eval { $cb->(@args) };
		2478	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2479	};
		2480
		2481	warn $@ if $@;
		2482	_exit 0;
		2483	}
		2484	}
		2485
		2486
2173		2487
2174	#############################################################################	2488	#############################################################################
2175	# the server's main()	2489	# the server's init and main functions
		2490
		2491	sub load_facedata($) {
		2492	my ($path) = @_;
		2493
		2494	warn "loading facedata from $path\n";
		2495
		2496	my $facedata;
		2497	0 < aio_load $path, $facedata
		2498	or die "$path: $!";
		2499
		2500	$facedata = Coro::Storable::thaw $facedata;
		2501
		2502	$facedata->{version} == 2
		2503	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2504
		2505	{
		2506	my $faces = $facedata->{faceinfo};
		2507
		2508	while (my ($face, $info) = each %$faces) {
		2509	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2510	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2511	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2512	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2513	Coro::cede;
		2514	}
		2515
		2516	while (my ($face, $info) = each %$faces) {
		2517	next unless $info->{smooth};
		2518	my $idx = cf::face::find $face
		2519	or next;
		2520	if (my $smooth = cf::face::find $info->{smooth}) {
		2521	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2522	} else {
		2523	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2524	}
		2525	Coro::cede;
		2526	}
		2527	}
		2528
		2529	{
		2530	my $anims = $facedata->{animinfo};
		2531
		2532	while (my ($anim, $info) = each %$anims) {
		2533	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2534	Coro::cede;
		2535	}
		2536
		2537	cf::anim::invalidate_all; # d'oh
		2538	}
		2539
		2540	1
		2541	}
		2542
		2543	sub reload_regions {
		2544	load_resource_file "$MAPDIR/regions"
		2545	or die "unable to load regions file\n";
		2546	}
		2547
		2548	sub reload_facedata {
		2549	load_facedata "$DATADIR/facedata"
		2550	or die "unable to load facedata\n";
		2551	}
		2552
		2553	sub reload_archetypes {
		2554	load_resource_file "$DATADIR/archetypes"
		2555	or die "unable to load archetypes\n";
		2556	}
		2557
		2558	sub reload_treasures {
		2559	load_resource_file "$DATADIR/treasures"
		2560	or die "unable to load treasurelists\n";
		2561	}
		2562
		2563	sub reload_resources {
		2564	warn "reloading resource files...\n";
		2565
		2566	reload_regions;
		2567	reload_facedata;
		2568	reload_archetypes;
		2569	reload_treasures;
		2570
		2571	warn "finished reloading resource files\n";
		2572	}
		2573
		2574	sub init {
		2575	reload_resources;
		2576	}
2176		2577
2177	sub cfg_load {	2578	sub cfg_load {
2178	open my $fh, "<:utf8", cf::confdir . "/config"	2579	open my $fh, "<:utf8", "$CONFDIR/config"
2179	or return;	2580	or return;
2180		2581
2181	local $/;	2582	local $/;
2182	*CFG = YAML::Syck::Load <$fh>;	2583	*CFG = YAML::Syck::Load <$fh>;
2183		2584
…		…
2197		2598
2198	sub main {	2599	sub main {
2199	# we must not ever block the main coroutine	2600	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	2601	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2602	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2603	(async {
2202	async { Event::one_event };	2604	Event::one_event;
		2605	})->prio (Coro::PRIO_MAX);
2203	};	2606	};
2204		2607
2205	cfg_load;	2608	cfg_load;
2206	db_load;	2609	db_init;
2207	load_extensions;	2610	load_extensions;
		2611
		2612	$TICK_WATCHER->start;
2208	Event::loop;	2613	Event::loop;
2209	}	2614	}
2210		2615
2211	#############################################################################	2616	#############################################################################
2212	# initialisation	2617	# initialisation and cleanup
2213		2618
		2619	# install some emergency cleanup handlers
		2620	BEGIN {
		2621	for my $signal (qw(INT HUP TERM)) {
		2622	Event->signal (
		2623	reentrant => 0,
		2624	data => WF_AUTOCANCEL,
		2625	signal => $signal,
		2626	prio => 0,
		2627	cb => sub {
		2628	cf::cleanup "SIG$signal";
		2629	},
		2630	);
		2631	}
		2632	}
		2633
		2634	sub emergency_save() {
		2635	my $freeze_guard = cf::freeze_mainloop;
		2636
		2637	warn "enter emergency perl save\n";
		2638
		2639	cf::sync_job {
		2640	# use a peculiar iteration method to avoid tripping on perl
		2641	# refcount bugs in for. also avoids problems with players
		2642	# and maps saved/destroyed asynchronously.
		2643	warn "begin emergency player save\n";
		2644	for my $login (keys %cf::PLAYER) {
		2645	my $pl = $cf::PLAYER{$login} or next;
		2646	$pl->valid or next;
		2647	$pl->save;
		2648	}
		2649	warn "end emergency player save\n";
		2650
		2651	warn "begin emergency map save\n";
		2652	for my $path (keys %cf::MAP) {
		2653	my $map = $cf::MAP{$path} or next;
		2654	$map->valid or next;
		2655	$map->save;
		2656	}
		2657	warn "end emergency map save\n";
		2658
		2659	warn "begin emergency database checkpoint\n";
		2660	BDB::db_env_txn_checkpoint $DB_ENV;
		2661	warn "end emergency database checkpoint\n";
		2662	};
		2663
		2664	warn "leave emergency perl save\n";
		2665	}
		2666
		2667	sub post_cleanup {
		2668	my ($make_core) = @_;
		2669
		2670	warn Carp::longmess "post_cleanup backtrace"
		2671	if $make_core;
		2672	}
		2673
2214	sub reload() {	2674	sub do_reload_perl() {
2215	# can/must only be called in main	2675	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	2676	if ($Coro::current != $Coro::main) {
2217	warn "can only reload from main coroutine\n";	2677	warn "can only reload from main coroutine";
2218	return;	2678	return;
2219	}	2679	}
2220		2680
2221	warn "reloading...";	2681	warn "reloading...";
2222		2682
2223	my $guard = freeze_mainloop;	2683	warn "entering sync_job";
		2684
		2685	cf::sync_job {
		2686	cf::write_runtime; # external watchdog should not bark
2224	cf::emergency_save;	2687	cf::emergency_save;
		2688	cf::write_runtime; # external watchdog should not bark
2225		2689
2226	eval {	2690	warn "syncing database to disk";
		2691	BDB::db_env_txn_checkpoint $DB_ENV;
		2692
2227	# if anything goes wrong in here, we should simply crash as we already saved	2693	# if anything goes wrong in here, we should simply crash as we already saved
2228		2694
2229	# cancel all watchers	2695	warn "cancelling all WF_AUTOCANCEL watchers";
2230	for (Event::all_watchers) {	2696	for (Event::all_watchers) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;	2697	$_->cancel if $_->data & WF_AUTOCANCEL;
2232	}	2698	}
2233		2699
		2700	warn "flushing outstanding aio requests";
		2701	for (;;) {
		2702	BDB::flush;
		2703	IO::AIO::flush;
		2704	Coro::cede;
		2705	last unless IO::AIO::nreqs || BDB::nreqs;
		2706	warn "iterate...";
		2707	}
		2708
		2709	++$RELOAD;
		2710
2234	# cancel all extension coros	2711	warn "cancelling all extension coros";
2235	$_->cancel for values %EXT_CORO;	2712	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	2713	%EXT_CORO = ();
2237		2714
2238	# unload all extensions	2715	warn "removing commands";
2239	for (@exts) {	2716	%COMMAND = ();
		2717
		2718	warn "removing ext commands";
		2719	%EXTCMD = ();
		2720
		2721	warn "unloading/nuking all extensions";
		2722	for my $pkg (@EXTS) {
2240	warn "unloading <$_>";	2723	warn "... unloading $pkg";
2241	unload_extension $_;	2724
		2725	if (my $cb = $pkg->can ("unload")) {
		2726	eval {
		2727	$cb->($pkg);
		2728	1
		2729	} or warn "$pkg unloaded, but with errors: $@";
2242	}	2730	}
2243		2731
		2732	warn "... nuking $pkg";
		2733	Symbol::delete_package $pkg;
		2734	}
		2735
2244	# unload all modules loaded from $LIBDIR	2736	warn "unloading all perl modules loaded from $LIBDIR";
2245	while (my ($k, $v) = each %INC) {	2737	while (my ($k, $v) = each %INC) {
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2738	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2247		2739
2248	warn "removing <$k>";	2740	warn "... unloading $k";
2249	delete $INC{$k};	2741	delete $INC{$k};
2250		2742
2251	$k =~ s/\.pm$//;	2743	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;	2744	$k =~ s/\//::/g;
2253		2745
…		…
2256	}	2748	}
2257		2749
2258	Symbol::delete_package $k;	2750	Symbol::delete_package $k;
2259	}	2751	}
2260		2752
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	2753	warn "getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	2754	Symbol::delete_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2755	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		2756
2269	# remove register_script_function callbacks
2270	# TODO
2271
2272	# unload cf.pm "a bit"	2757	warn "unloading cf.pm \"a bit\"";
2273	delete $INC{"cf.pm"};	2758	delete $INC{"cf.pm"};
		2759	delete $INC{"cf/pod.pm"};
2274		2760
2275	# don't, removes xs symbols, too,	2761	# don't, removes xs symbols, too,
2276	# and global variables created in xs	2762	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	2763	#Symbol::delete_package __PACKAGE__;
2278		2764
2279	# reload cf.pm	2765	warn "unload completed, starting to reload now";
		2766
2280	warn "reloading cf.pm";	2767	warn "reloading cf.pm";
2281	require cf;	2768	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2769	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2283		2770
2284	# load config and database again	2771	warn "loading config and database again";
2285	cf::cfg_load;	2772	cf::cfg_load;
2286	cf::db_load;
2287		2773
2288	# load extensions
2289	warn "load extensions";	2774	warn "loading extensions";
2290	cf::load_extensions;	2775	cf::load_extensions;
2291		2776
2292	# reattach attachments to objects	2777	warn "reattaching attachments to objects/players";
2293	warn "reattach";	2778	_global_reattach; # objects, sockets
2294	_global_reattach;	2779	warn "reattaching attachments to maps";
2295	reattach $_ for values %MAP;	2780	reattach $_ for values %MAP;
2296	};	2781	warn "reattaching attachments to players";
		2782	reattach $_ for values %PLAYER;
2297		2783
2298	if ($@) {	2784	warn "leaving sync_job";
		2785
		2786	1
		2787	} or do {
2299	warn $@;	2788	warn $@;
2300	warn "error while reloading, exiting.";	2789	warn "error while reloading, exiting.";
2301	exit 1;	2790	exit 1;
2302	}	2791	};
2303		2792
2304	warn "reloaded successfully";	2793	warn "reloaded";
2305	};	2794	};
2306		2795
2307	#############################################################################	2796	our $RELOAD_WATCHER; # used only during reload
2308		2797
2309	unless ($LINK_MAP) {	2798	sub reload_perl() {
2310	$LINK_MAP = cf::map::new;	2799	# doing reload synchronously and two reloads happen back-to-back,
		2800	# coro crashes during coro_state_free->destroy here.
2311		2801
2312	$LINK_MAP->width (41);	2802	$RELOAD_WATCHER ||= Event->timer (
2313	$LINK_MAP->height (41);	2803	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,	2804	after => 0,
		2805	data => WF_AUTOCANCEL,
2322	cb => sub {	2806	cb => sub {
2323	$_[0]->w->cancel;	2807	do_reload_perl;
2324		2808	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	});	2809	},
2343		2810	);
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	2811	}
2349
2350	register "<global>", __PACKAGE__;
2351		2812
2352	register_command "reload" => sub {	2813	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	2814	my ($who, $arg) = @_;
2354		2815
2355	if ($who->flag (FLAG_WIZ)) {	2816	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	2817	$who->message ("reloading server.");
		2818	async { reload_perl };
2359	}	2819	}
2360	};	2820	};
2361		2821
2362	unshift @INC, $LIBDIR;	2822	unshift @INC, $LIBDIR;
2363		2823
		2824	my $bug_warning = 0;
		2825
		2826	our @WAIT_FOR_TICK;
		2827	our @WAIT_FOR_TICK_BEGIN;
		2828
		2829	sub wait_for_tick {
		2830	return unless $TICK_WATCHER->is_active;
		2831	return if $Coro::current == $Coro::main;
		2832
		2833	my $signal = new Coro::Signal;
		2834	push @WAIT_FOR_TICK, $signal;
		2835	$signal->wait;
		2836	}
		2837
		2838	sub wait_for_tick_begin {
		2839	return unless $TICK_WATCHER->is_active;
		2840	return if $Coro::current == $Coro::main;
		2841
		2842	my $signal = new Coro::Signal;
		2843	push @WAIT_FOR_TICK_BEGIN, $signal;
		2844	$signal->wait;
		2845	}
		2846
		2847	my $min = 1e6;#d#
		2848	my $avg = 10;
2364	$TICK_WATCHER = Event->timer (	2849	$TICK_WATCHER = Event->timer (
2365	reentrant => 0,	2850	reentrant => 0,
		2851	parked => 1,
2366	prio => 0,	2852	prio => 0,
2367	at => $NEXT_TICK || $TICK,	2853	at => $NEXT_TICK || $TICK,
2368	data => WF_AUTOCANCEL,	2854	data => WF_AUTOCANCEL,
2369	cb => sub {	2855	cb => sub {
		2856	if ($Coro::current != $Coro::main) {
		2857	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2858	unless ++$bug_warning > 10;
		2859	return;
		2860	}
		2861
		2862	$NOW = $tick_start = Event::time;
		2863
2370	cf::server_tick; # one server iteration	2864	cf::server_tick; # one server iteration
		2865
		2866	0 && sync_job {#d#
		2867	for(1..10) {
		2868	my $t = Event::time;
		2869	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2870	or die;
		2871
		2872	$map->width (50);
		2873	$map->height (50);
		2874	$map->alloc;
		2875	$map->_load_objects ("/tmp/x.map", 1);
		2876	my $t = Event::time - $t;
		2877
		2878	#next unless $t < 0.0013;#d#
		2879	if ($t < $min) {
		2880	$min = $t;
		2881	}
		2882	$avg = $avg * 0.99 + $t * 0.01;
		2883	}
		2884	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2885	exit 0;
		2886	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2887	};
		2888
2371	$RUNTIME += $TICK;	2889	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;	2890	$NEXT_TICK += $TICK;
2373		2891
		2892	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2893	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2894	Coro::async_pool {
		2895	write_runtime
		2896	or warn "ERROR: unable to write runtime file: $!";
		2897	};
		2898	}
		2899
		2900	# my $AFTER = Event::time;
		2901	# warn $AFTER - $NOW;#d#
		2902
		2903	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2904	$sig->send;
		2905	}
		2906	while (my $sig = shift @WAIT_FOR_TICK) {
		2907	$sig->send;
		2908	}
		2909
		2910	$NOW = Event::time;
		2911
2374	# if we are delayed by four ticks or more, skip them all	2912	# if we are delayed by four ticks or more, skip them all
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2913	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2376		2914
2377	$TICK_WATCHER->at ($NEXT_TICK);	2915	$TICK_WATCHER->at ($NEXT_TICK);
2378	$TICK_WATCHER->start;	2916	$TICK_WATCHER->start;
		2917
		2918	$LOAD = ($NOW - $tick_start) / $TICK;
		2919	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2920
		2921	_post_tick;
		2922
		2923
2379	},	2924	},
2380	);	2925	);
2381		2926
		2927	{
2382	IO::AIO::max_poll_time $TICK * 0.2;	2928	BDB::max_poll_time $TICK * 0.1;
2383		2929	$BDB_POLL_WATCHER = Event->io (
2384	Event->io (	2930	reentrant => 0,
2385	fd => IO::AIO::poll_fileno,	2931	fd => BDB::poll_fileno,
2386	poll => 'r',	2932	poll => 'r',
2387	prio => 5,	2933	prio => 0,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391
2392	Event->timer (
2393	data => WF_AUTOCANCEL,	2934	data => WF_AUTOCANCEL,
2394	after => 0,	2935	cb => \&BDB::poll_cb,
2395	interval => 10,	2936	);
2396	cb => sub {	2937	BDB::min_parallel 8;
2397	(Coro::unblock_sub {	2938
2398	write_runtime	2939	BDB::set_sync_prepare {
2399	or warn "ERROR: unable to write runtime file: $!";	2940	my $status;
		2941	my $current = $Coro::current;
		2942	(
		2943	sub {
		2944	$status = $!;
		2945	$current->ready; undef $current;
		2946	},
		2947	sub {
		2948	Coro::schedule while defined $current;
		2949	$! = $status;
		2950	},
		2951	)
		2952	};
		2953
		2954	unless ($DB_ENV) {
		2955	$DB_ENV = BDB::db_env_create;
		2956
		2957	cf::sync_job {
		2958	eval {
		2959	BDB::db_env_open
		2960	$DB_ENV,
		2961	$BDBDIR,
		2962	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2963	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2964	0666;
		2965
		2966	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2967
		2968	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2969	$DB_ENV->set_lk_detect;
		2970	};
		2971
		2972	cf::cleanup "db_env_open(db): $@" if $@;
2400	})->();	2973	};
2401	},	2974	}
2402	);	2975	}
		2976
		2977	{
		2978	IO::AIO::min_parallel 8;
		2979
		2980	undef $Coro::AIO::WATCHER;
		2981	IO::AIO::max_poll_time $TICK * 0.1;
		2982	$AIO_POLL_WATCHER = Event->io (
		2983	reentrant => 0,
		2984	data => WF_AUTOCANCEL,
		2985	fd => IO::AIO::poll_fileno,
		2986	poll => 'r',
		2987	prio => 6,
		2988	cb => \&IO::AIO::poll_cb,
		2989	);
		2990	}
		2991
		2992	my $_log_backtrace;
		2993
		2994	sub _log_backtrace {
		2995	my ($msg, @addr) = @_;
		2996
		2997	$msg =~ s/\n//;
		2998
		2999	# limit the # of concurrent backtraces
		3000	if ($_log_backtrace < 2) {
		3001	++$_log_backtrace;
		3002	async {
		3003	my @bt = fork_call {
		3004	@addr = map { sprintf "%x", $_ } @addr;
		3005	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3006	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3007	or die "addr2line: $!";
		3008
		3009	my @funcs;
		3010	my @res = <$fh>;
		3011	chomp for @res;
		3012	while (@res) {
		3013	my ($func, $line) = splice @res, 0, 2, ();
		3014	push @funcs, "[$func] $line";
		3015	}
		3016
		3017	@funcs
		3018	};
		3019
		3020	LOG llevInfo, "[ABT] $msg\n";
		3021	LOG llevInfo, "[ABT] $_\n" for @bt;
		3022	--$_log_backtrace;
		3023	};
		3024	} else {
		3025	LOG llevInfo, "[ABT] $msg\n";
		3026	LOG llevInfo, "[ABT] [suppressed]\n";
		3027	}
		3028	}
		3029
		3030	# load additional modules
		3031	use cf::pod;
2403		3032
2404	END { cf::emergency_save }	3033	END { cf::emergency_save }
2405		3034
2406	1	3035	1
2407		3036

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