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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 1.271 by root, Fri Jun 1 06:04:08 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	IO::AIO::aio_utime $runtime, undef, undef;
		401
		402	my $guard = cf::lock_acquire "write_runtime";
334		403
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	404	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336	or return;	405	or return;
337		406
		407	my $value = $cf::RUNTIME + 90 + 10;
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	408	# 10 is the runtime save interval, for a monotonic clock
		409	# 60 allows for the watchdog to kill the server.
		410
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0	411	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;	412	and return;
341		413
		414	# always fsync - this file is important
342	aio_fsync $fh	415	aio_fsync $fh
343	and return;	416	and return;
344		417
		418	# touch it again to show we are up-to-date
		419	aio_utime $fh, undef, undef;
		420
345	close $fh	421	close $fh
346	or return;	422	or return;
347		423
348	aio_rename "$runtime~", $runtime	424	aio_rename "$runtime~", $runtime
349	and return;	425	and return;
350		426
		427	warn "runtime file written.\n";#d#
		428
351	1	429	1
352	}	430	}
353		431
		432	=item cf::datalog type => key => value, ...
		433
		434	Log a datalog packet of the given type with the given key-value pairs.
		435
		436	=cut
		437
		438	sub datalog($@) {
		439	my ($type, %kv) = @_;
		440	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		441	}
		442
354	=back	443	=back
355		444
356	=cut	445	=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		446
480	#############################################################################	447	#############################################################################
481		448
482	=head2 ATTACHABLE OBJECTS	449	=head2 ATTACHABLE OBJECTS
483		450
…		…
609	our @CB_TYPE = (); # registry for type (cf-object class) based events	576	our @CB_TYPE = (); # registry for type (cf-object class) based events
610	our @CB_MAP = ();	577	our @CB_MAP = ();
611		578
612	my %attachment;	579	my %attachment;
613		580
		581	sub cf::attachable::thawer_merge {
		582	# simply override everything except _meta
		583	local $_[0]{_meta};
		584	%{$_[0]} = %{$_[1]};
		585	}
		586
614	sub _attach_cb($$$$) {	587	sub _attach_cb($$$$) {
615	my ($registry, $event, $prio, $cb) = @_;	588	my ($registry, $event, $prio, $cb) = @_;
616		589
617	use sort 'stable';	590	use sort 'stable';
618		591
…		…
652	$registry = $CB_TYPE[$object_type] ||= [];	625	$registry = $CB_TYPE[$object_type] ||= [];
653		626
654	} elsif ($type eq "subtype") {	627	} elsif ($type eq "subtype") {
655	defined $object_type or Carp::croak "subtype specified without type";	628	defined $object_type or Carp::croak "subtype specified without type";
656	my $object_subtype = shift @arg;	629	my $object_subtype = shift @arg;
657	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	630	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
658		631
659	} elsif ($type eq "package") {	632	} elsif ($type eq "package") {
660	my $pkg = shift @arg;	633	my $pkg = shift @arg;
661		634
662	while (my ($name, $id) = each %cb_id) {	635	while (my ($name, $id) = each %cb_id) {
…		…
703	if (ref $_[0]) {	676	if (ref $_[0]) {
704	_object_attach @_;	677	_object_attach @_;
705	} else {	678	} else {
706	_attach shift->_attach_registry, @_;	679	_attach shift->_attach_registry, @_;
707	}	680	}
		681	_recalc_want;
708	};	682	};
709		683
710	# all those should be optimised	684	# all those should be optimised
711	sub cf::attachable::detach {	685	sub cf::attachable::detach {
712	my ($obj, $name) = @_;	686	my ($obj, $name) = @_;
…		…
715	delete $obj->{_attachment}{$name};	689	delete $obj->{_attachment}{$name};
716	reattach ($obj);	690	reattach ($obj);
717	} else {	691	} else {
718	Carp::croak "cannot, currently, detach class attachments";	692	Carp::croak "cannot, currently, detach class attachments";
719	}	693	}
		694	_recalc_want;
720	};	695	};
721		696
722	sub cf::attachable::attached {	697	sub cf::attachable::attached {
723	my ($obj, $name) = @_;	698	my ($obj, $name) = @_;
724		699
…		…
789	# object support	764	# object support
790		765
791	sub reattach {	766	sub reattach {
792	# basically do the same as instantiate, without calling instantiate	767	# basically do the same as instantiate, without calling instantiate
793	my ($obj) = @_;	768	my ($obj) = @_;
		769
		770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
794		771
795	my $registry = $obj->registry;	772	my $registry = $obj->registry;
796		773
797	@$registry = ();	774	@$registry = ();
798		775
…		…
845	$filename, length $$rdata, scalar @$objs;	822	$filename, length $$rdata, scalar @$objs;
846		823
847	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
848	chmod SAVE_MODE, $fh;	825	chmod SAVE_MODE, $fh;
849	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
850	aio_fsync $fh;	827	aio_fsync $fh if $cf::USE_FSYNC;
851	close $fh;	828	close $fh;
852		829
853	if (@$objs) {	830	if (@$objs) {
854	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	831	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
855	chmod SAVE_MODE, $fh;	832	chmod SAVE_MODE, $fh;
856	my $data = Storable::nfreeze { version => 1, objs => $objs };	833	my $data = Storable::nfreeze { version => 1, objs => $objs };
857	aio_write $fh, 0, (length $data), $data, 0;	834	aio_write $fh, 0, (length $data), $data, 0;
858	aio_fsync $fh;	835	aio_fsync $fh if $cf::USE_FSYNC;
859	close $fh;	836	close $fh;
860	aio_rename "$filename.pst~", "$filename.pst";	837	aio_rename "$filename.pst~", "$filename.pst";
861	}	838	}
862	} else {	839	} else {
863	aio_unlink "$filename.pst";	840	aio_unlink "$filename.pst";
…		…
930	=cut	907	=cut
931		908
932	sub register_extcmd {	909	sub register_extcmd {
933	my ($name, $cb) = @_;	910	my ($name, $cb) = @_;
934		911
935	my $caller = caller;
936	#warn "registering extcmd '$name' to '$caller'";
937
938	$EXTCMD{$name} = [$cb, $caller];	912	$EXTCMD{$name} = $cb;
939	}	913	}
940		914
941	cf::player->attach (	915	cf::player->attach (
942	on_command => sub {	916	on_command => sub {
943	my ($pl, $name, $params) = @_;	917	my ($pl, $name, $params) = @_;
…		…
956		930
957	my $msg = eval { from_json $buf };	931	my $msg = eval { from_json $buf };
958		932
959	if (ref $msg) {	933	if (ref $msg) {
960	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
961	if (my %reply = $cb->[0]->($pl, $msg)) {	935	if (my %reply = $cb->($pl, $msg)) {
962	$pl->ext_reply ($msg->{msgid}, %reply);	936	$pl->ext_reply ($msg->{msgid}, %reply);
963	}	937	}
964	}	938	}
965	} else {	939	} else {
966	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
968		942
969	cf::override;	943	cf::override;
970	},	944	},
971	);	945	);
972		946
973	sub register {
974	my ($base, $pkg) = @_;
975
976	#TODO
977	}
978
979	sub load_extension {	947	sub load_extension {
980	my ($path) = @_;	948	my ($path) = @_;
981		949
982	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
983	my $base = $1;	951	my $base = $1;
984	my $pkg = $1;	952	my $pkg = $1;
985	$pkg =~ s/[^[:word:]]/_/g;	953	$pkg =~ s/[^[:word:]]/_/g;
986	$pkg = "ext::$pkg";	954	$pkg = "ext::$pkg";
987		955
988	warn "loading '$path' into '$pkg'\n";	956	warn "... loading '$path' into '$pkg'\n";
989		957
990	open my $fh, "<:utf8", $path	958	open my $fh, "<:utf8", $path
991	or die "$path: $!";	959	or die "$path: $!";
992		960
993	my $source =	961	my $source =
994	"package $pkg; use strict; use utf8;\n"	962	"package $pkg; use strict; use utf8;\n"
995	. "#line 1 \"$path\"\n{\n"	963	. "#line 1 \"$path\"\n{\n"
996	. (do { local $/; <$fh> })	964	. (do { local $/; <$fh> })
997	. "\n};\n1";	965	. "\n};\n1";
998		966
999	eval $source	967	unless (eval $source) {
1000	or die $@ ? "$path: $@\n"	968	my $msg = $@ ? "$path: $@\n"
1001	: "extension disabled.\n";	969	: "extension disabled.\n";
1002		970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1003	push @exts, $pkg;	971	warn $@;
1004	$ext_pkg{$base} = $pkg;	972	warn "mandatory extension failed to load, exiting.\n";
1005		973	exit 1;
1006	# no strict 'refs';	974	}
1007	# @{"$pkg\::ISA"} = ext::;	975	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	# }	976	}
1022		977
1023	# remove commands	978	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	}	979	}
1048		980
1049	sub load_extensions {	981	sub load_extensions {
1050	for my $ext (<$LIBDIR/*.ext>) {	982	for my $ext (<$LIBDIR/*.ext>) {
1051	next unless -r $ext;	983	next unless -r $ext;
…		…
1055	} or warn "$ext not loaded: $@";	987	} or warn "$ext not loaded: $@";
1056	}	988	}
1057	}	989	}
1058		990
1059	#############################################################################	991	#############################################################################
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		992
1097	=head2 CORE EXTENSIONS	993	=head2 CORE EXTENSIONS
1098		994
1099	Functions and methods that extend core crossfire objects.	995	Functions and methods that extend core crossfire objects.
1100		996
…		…
1113	Returns the given player object, loading it if necessary (might block).	1009	Returns the given player object, loading it if necessary (might block).
1114		1010
1115	=cut	1011	=cut
1116		1012
1117	sub playerdir($) {	1013	sub playerdir($) {
1118	cf::localdir	1014	"$PLAYERDIR/"
1119	. "/"
1120	. cf::playerdir
1121	. "/"
1122	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1015	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1123	}	1016	}
1124		1017
1125	sub path($) {	1018	sub path($) {
1126	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1019	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1127		1020
1128	(playerdir $login) . "/$login.pl"	1021	(playerdir $login) . "/playerdata"
1129	}	1022	}
1130		1023
1131	sub find_active($) {	1024	sub find_active($) {
1132	$cf::PLAYER{$_[0]}	1025	$cf::PLAYER{$_[0]}
1133	and $cf::PLAYER{$_[0]}->active	1026	and $cf::PLAYER{$_[0]}->active
…		…
1136		1029
1137	sub exists($) {	1030	sub exists($) {
1138	my ($login) = @_;	1031	my ($login) = @_;
1139		1032
1140	$cf::PLAYER{$login}	1033	$cf::PLAYER{$login}
1141	or cf::sync_job { !aio_stat $login }	1034	or cf::sync_job { !aio_stat path $login }
1142	}	1035	}
1143		1036
1144	sub find($) {	1037	sub find($) {
1145	return $cf::PLAYER{$_[0]} || do {	1038	return $cf::PLAYER{$_[0]} || do {
1146	my $login = $_[0];	1039	my $login = $_[0];
1147		1040
1148	my $guard = cf::lock_acquire "user_find:$login";	1041	my $guard = cf::lock_acquire "user_find:$login";
1149		1042
1150	$cf::PLAYER{$_[0]} || do {	1043	$cf::PLAYER{$_[0]} || do {
		1044	# rename old playerfiles to new ones
		1045	#TODO: remove when no longer required
		1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1049	aio_unlink +(playerdir $login) . "/$login.pl";
		1050
1151	my $pl = load_pl path $login	1051	my $pl = load_pl path $login
1152	or return;	1052	or return;
1153	$cf::PLAYER{$login} = $pl	1053	$cf::PLAYER{$login} = $pl
1154	}	1054	}
1155	}	1055	}
…		…
1192		1092
1193	=cut	1093	=cut
1194		1094
1195	sub quit_character {	1095	sub quit_character {
1196	my ($pl) = @_;	1096	my ($pl) = @_;
		1097
		1098	my $name = $pl->ob->name;
1197		1099
1198	$pl->{deny_save} = 1;	1100	$pl->{deny_save} = 1;
1199	$pl->password ("*"); # this should lock out the player until we nuked the dir	1101	$pl->password ("*"); # this should lock out the player until we nuked the dir
1200		1102
1201	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1206	my $path = playerdir $pl;	1108	my $path = playerdir $pl;
1207	my $temp = "$path~$cf::RUNTIME~deleting~";	1109	my $temp = "$path~$cf::RUNTIME~deleting~";
1208	aio_rename $path, $temp;	1110	aio_rename $path, $temp;
1209	delete $cf::PLAYER{$pl->ob->name};	1111	delete $cf::PLAYER{$pl->ob->name};
1210	$pl->destroy;	1112	$pl->destroy;
		1113
		1114	my $prefix = qr<^~\Q$name\E/>;
		1115
		1116	# nuke player maps
		1117	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1118
1211	IO::AIO::aio_rmtree $temp;	1119	IO::AIO::aio_rmtree $temp;
		1120	}
		1121
		1122	=item $pl->kick
		1123
		1124	Kicks a player out of the game. This destroys the connection.
		1125
		1126	=cut
		1127
		1128	sub kick {
		1129	my ($pl, $kicker) = @_;
		1130
		1131	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1132	$pl->killer ("kicked");
		1133	$pl->ns->destroy;
1212	}	1134	}
1213		1135
1214	=item cf::player::list_logins	1136	=item cf::player::list_logins
1215		1137
1216	Returns am arrayref of all valid playernames in the system, can take a	1138	Returns am arrayref of all valid playernames in the system, can take a
1217	while and may block, so not sync_job-capable, ever.	1139	while and may block, so not sync_job-capable, ever.
1218		1140
1219	=cut	1141	=cut
1220		1142
1221	sub list_logins {	1143	sub list_logins {
1222	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1144	my $dirs = aio_readdir $PLAYERDIR
1223	or return [];	1145	or return [];
1224		1146
1225	my @logins;	1147	my @logins;
1226		1148
1227	for my $login (@$dirs) {	1149	for my $login (@$dirs) {
1228	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1150	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1229	aio_read $fh, 0, 512, my $buf, 0 or next;	1151	aio_read $fh, 0, 512, my $buf, 0 or next;
1230	$buf !~ /^password -------------$/ or next; # official not-valid tag	1152	$buf !~ /^password -------------$/m or next; # official not-valid tag
1231		1153
1232	utf8::decode $login;	1154	utf8::decode $login;
1233	push @logins, $login;	1155	push @logins, $login;
1234	}	1156	}
1235		1157
1236	\@logins	1158	\@logins
1237	}	1159	}
1238		1160
1239	=item $player->maps	1161	=item $player->maps
1240		1162
1241	Returns an arrayref of cf::path's of all maps that are private for this	1163	Returns an arrayref of map paths that are private for this
1242	player. May block.	1164	player. May block.
1243		1165
1244	=cut	1166	=cut
1245		1167
1246	sub maps($) {	1168	sub maps($) {
1247	my ($pl) = @_;	1169	my ($pl) = @_;
		1170
		1171	$pl = ref $pl ? $pl->ob->name : $pl;
1248		1172
1249	my $files = aio_readdir playerdir $pl	1173	my $files = aio_readdir playerdir $pl
1250	or return;	1174	or return;
1251		1175
1252	my @paths;	1176	my @paths;
1253		1177
1254	for (@$files) {	1178	for (@$files) {
1255	utf8::decode $_;	1179	utf8::decode $_;
1256	next if /\.(?:pl|pst)$/;	1180	next if /\.(?:pl|pst)$/;
1257	next unless /^$PATH_SEP/;	1181	next unless /^$PATH_SEP/o;
1258		1182
1259	s/$PATH_SEP/\//g;	1183	push @paths, cf::map::normalise "~$pl/$_";
1260	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1261	}	1184	}
1262		1185
1263	\@paths	1186	\@paths
1264	}	1187	}
1265		1188
1266	=item $player->ext_reply ($msgid, $msgtype, %msg)	1189	=item $player->ext_reply ($msgid, %msg)
1267		1190
1268	Sends an ext reply to the player.	1191	Sends an ext reply to the player.
1269		1192
1270	=cut	1193	=cut
1271		1194
1272	sub ext_reply($$$%) {	1195	sub ext_reply($$%) {
1273	my ($self, $id, %msg) = @_;	1196	my ($self, $id, %msg) = @_;
1274		1197
1275	$msg{msgid} = $id;	1198	$msg{msgid} = $id;
1276		1199
1277	$self->send ("ext " . cf::to_json \%msg);	1200	$self->send ("ext " . cf::to_json \%msg);
1278	}	1201	}
1279		1202
1280	package cf;	1203	=item $player->ext_event ($type, %msg)
		1204
		1205	Sends an ext event to the client.
		1206
		1207	=cut
		1208
		1209	sub ext_event($$%) {
		1210	my ($self, $type, %msg) = @_;
		1211
		1212	$self->ns->ext_event ($type, %msg);
		1213	}
		1214
		1215	=head3 cf::region
		1216
		1217	=over 4
		1218
		1219	=cut
		1220
		1221	package cf::region;
		1222
		1223	=item cf::region::find_by_path $path
		1224
		1225	Tries to decuce the probable region for a map knowing only its path.
		1226
		1227	=cut
		1228
		1229	sub find_by_path($) {
		1230	my ($path) = @_;
		1231
		1232	my ($match, $specificity);
		1233
		1234	for my $region (list) {
		1235	if ($region->match && $path =~ $region->match) {
		1236	($match, $specificity) = ($region, $region->specificity)
		1237	if $region->specificity > $specificity;
		1238	}
		1239	}
		1240
		1241	$match
		1242	}
1281		1243
1282	=back	1244	=back
1283
1284		1245
1285	=head3 cf::map	1246	=head3 cf::map
1286		1247
1287	=over 4	1248	=over 4
1288		1249
…		…
1291	package cf::map;	1252	package cf::map;
1292		1253
1293	use Fcntl;	1254	use Fcntl;
1294	use Coro::AIO;	1255	use Coro::AIO;
1295		1256
		1257	use overload
		1258	'""' => \&as_string,
		1259	fallback => 1;
		1260
1296	our $MAX_RESET = 3600;	1261	our $MAX_RESET = 3600;
1297	our $DEFAULT_RESET = 3000;	1262	our $DEFAULT_RESET = 3000;
1298		1263
1299	sub generate_random_map {	1264	sub generate_random_map {
1300	my ($path, $rmp) = @_;	1265	my ($self, $rmp) = @_;
1301
1302	# mit "rum" bekleckern, nicht	1266	# mit "rum" bekleckern, nicht
1303	cf::map::_create_random_map	1267	$self->_create_random_map (
1304	$path,
1305	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1306	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1307	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1308	$rmp->{exit_on_final_map},	1271	$rmp->{exit_on_final_map},
1309	$rmp->{xsize}, $rmp->{ysize},	1272	$rmp->{xsize}, $rmp->{ysize},
1310	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1273	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1311	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1274	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1312	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1275	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1313	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1276	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1314	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1277	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1315	(cf::region::find $rmp->{region})	1278	(cf::region::find $rmp->{region}), $rmp->{custom}
		1279	)
		1280	}
		1281
		1282	=item cf::map->register ($regex, $prio)
		1283
		1284	Register a handler for the map path matching the given regex at the
		1285	givne priority (higher is better, built-in handlers have priority 0, the
		1286	default).
		1287
		1288	=cut
		1289
		1290	sub register {
		1291	my (undef, $regex, $prio) = @_;
		1292	my $pkg = caller;
		1293
		1294	no strict;
		1295	push @{"$pkg\::ISA"}, __PACKAGE__;
		1296
		1297	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1298	}
		1299
		1300	# also paths starting with '/'
		1301	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1302
		1303	sub thawer_merge {
		1304	my ($self, $merge) = @_;
		1305
		1306	# we have to keep some variables in memory intact
		1307	local $self->{path};
		1308	local $self->{load_path};
		1309	local $self->{deny_save};
		1310	local $self->{deny_reset};
		1311
		1312	$self->SUPER::thawer_merge ($merge);
		1313	}
		1314
		1315	sub normalise {
		1316	my ($path, $base) = @_;
		1317
		1318	$path = "$path"; # make sure its a string
		1319
		1320	$path =~ s/\.map$//;
		1321
		1322	# map plan:
		1323	#
		1324	# /! non-realised random map exit (special hack!)
		1325	# {... are special paths that are not being touched
		1326	# ?xxx/... are special absolute paths
		1327	# ?random/... random maps
		1328	# /... normal maps
		1329	# ~user/... per-player map of a specific user
		1330
		1331	$path =~ s/$PATH_SEP/\//go;
		1332
		1333	# treat it as relative path if it starts with
		1334	# something that looks reasonable
		1335	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1336	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1337
		1338	$base =~ s{[^/]+/?$}{};
		1339	$path = "$base/$path";
		1340	}
		1341
		1342	for ($path) {
		1343	redo if s{//}{/};
		1344	redo if s{/\.?/}{/};
		1345	redo if s{/[^/]+/\.\./}{/};
		1346	}
		1347
		1348	$path
		1349	}
		1350
		1351	sub new_from_path {
		1352	my (undef, $path, $base) = @_;
		1353
		1354	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1355
		1356	$path = normalise $path, $base;
		1357
		1358	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1359	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1360	my $self = bless cf::map::new, $pkg;
		1361	$self->{path} = $path; $self->path ($path);
		1362	$self->init; # pass $1 etc.
		1363	return $self;
		1364	}
		1365	}
		1366
		1367	Carp::carp "unable to resolve path '$path' (base '$base').";
		1368	()
		1369	}
		1370
		1371	sub init {
		1372	my ($self) = @_;
		1373
		1374	$self
		1375	}
		1376
		1377	sub as_string {
		1378	my ($self) = @_;
		1379
		1380	"$self->{path}"
		1381	}
		1382
		1383	# the displayed name, this is a one way mapping
		1384	sub visible_name {
		1385	&as_string
		1386	}
		1387
		1388	# the original (read-only) location
		1389	sub load_path {
		1390	my ($self) = @_;
		1391
		1392	"$MAPDIR/$self->{path}.map"
		1393	}
		1394
		1395	# the temporary/swap location
		1396	sub save_path {
		1397	my ($self) = @_;
		1398
		1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1400	"$TMPDIR/$path.map"
		1401	}
		1402
		1403	# the unique path, undef == no special unique path
		1404	sub uniq_path {
		1405	my ($self) = @_;
		1406
		1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1408	"$UNIQUEDIR/$path"
1316	}	1409	}
1317		1410
1318	# and all this just because we cannot iterate over	1411	# and all this just because we cannot iterate over
1319	# all maps in C++...	1412	# all maps in C++...
1320	sub change_all_map_light {	1413	sub change_all_map_light {
…		…
1322		1415
1323	$_->change_map_light ($change)	1416	$_->change_map_light ($change)
1324	for grep $_->outdoor, values %cf::MAP;	1417	for grep $_->outdoor, values %cf::MAP;
1325	}	1418	}
1326		1419
		1420	sub unlink_save {
		1421	my ($self) = @_;
		1422
		1423	utf8::encode (my $save = $self->save_path);
		1424	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1426	}
		1427
1327	sub try_load_header($) {	1428	sub load_header_from($) {
1328	my ($path) = @_;	1429	my ($self, $path) = @_;
1329		1430
1330	utf8::encode $path;	1431	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	1432	#aio_open $path, O_RDONLY, 0
		1433	# or return;
		1434
		1435	$self->_load_header ($path)
1332	or return;	1436	or return;
1333		1437
1334	my $map = cf::map::new	1438	$self->{load_path} = $path;
		1439
		1440	1
		1441	}
		1442
		1443	sub load_header_orig {
		1444	my ($self) = @_;
		1445
		1446	$self->load_header_from ($self->load_path)
		1447	}
		1448
		1449	sub load_header_temp {
		1450	my ($self) = @_;
		1451
		1452	$self->load_header_from ($self->save_path)
		1453	}
		1454
		1455	sub prepare_temp {
		1456	my ($self) = @_;
		1457
		1458	$self->last_access ((delete $self->{last_access})
		1459	|| $cf::RUNTIME); #d#
		1460	# safety
		1461	$self->{instantiate_time} = $cf::RUNTIME
		1462	if $self->{instantiate_time} > $cf::RUNTIME;
		1463	}
		1464
		1465	sub prepare_orig {
		1466	my ($self) = @_;
		1467
		1468	$self->{load_original} = 1;
		1469	$self->{instantiate_time} = $cf::RUNTIME;
		1470	$self->last_access ($cf::RUNTIME);
		1471	$self->instantiate;
		1472	}
		1473
		1474	sub load_header {
		1475	my ($self) = @_;
		1476
		1477	if ($self->load_header_temp) {
		1478	$self->prepare_temp;
		1479	} else {
		1480	$self->load_header_orig
1335	or return;	1481	or return;
		1482	$self->prepare_orig;
		1483	}
1336		1484
1337	# for better error messages only, will be overwritten	1485	$self->default_region (cf::region::find_by_path $self->{path})
1338	$map->path ($path);	1486	unless $self->default_region;
1339		1487
1340	$map->load_header ($path)	1488	1
1341	or return;
1342
1343	$map->{load_path} = $path;
1344
1345	$map
1346	}	1489	}
1347		1490
1348	sub find;	1491	sub find;
1349	sub find {	1492	sub find {
1350	my ($path, $origin) = @_;	1493	my ($path, $origin) = @_;
1351		1494
1352	#warn "find<$path,$origin>\n";#d#
1353
1354	$path = new cf::path $path, $origin && $origin->path;	1495	$path = normalise $path, $origin && $origin->path;
1355	my $key = $path->as_string;
1356		1496
1357	cf::lock_wait "map_find:$key";	1497	cf::lock_wait "map_find:$path";
1358		1498
1359	$cf::MAP{$key} || do {	1499	$cf::MAP{$path} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	1500	my $guard = cf::lock_acquire "map_find:$path";
1361		1501	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;	1502	or return;
1381		1503
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;	1504	$map->{last_save} = $cf::RUNTIME;
1394		1505
1395	Coro::cede;	1506	$map->load_header
		1507	or return;
1396		1508
1397	if ($map->should_reset) {	1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1510	# doing this can freeze the server in a sync job, obviously
		1511	#$cf::WAIT_FOR_TICK->wait;
1398	$map->reset;	1512	$map->reset;
1399	undef $guard;	1513	undef $guard;
1400	$map = find $path	1514	return find $path;
1401	or return;
1402	}	1515	}
1403		1516
1404	$cf::MAP{$key} = $map	1517	$cf::MAP{$path} = $map
1405	}	1518	}
1406	}	1519	}
		1520
		1521	sub pre_load { }
		1522	sub post_load { }
1407		1523
1408	sub load {	1524	sub load {
1409	my ($self) = @_;	1525	my ($self) = @_;
1410		1526
		1527	local $self->{deny_reset} = 1; # loading can take a long time
		1528
1411	my $path = $self->{path};	1529	my $path = $self->{path};
		1530
		1531	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1532	my $guard = cf::lock_acquire "map_load:$path";
1413		1533
1414	return if $self->in_memory != cf::MAP_SWAPPED;	1534	return if $self->in_memory != cf::MAP_SWAPPED;
1415		1535
1416	$self->in_memory (cf::MAP_LOADING);	1536	$self->in_memory (cf::MAP_LOADING);
1417		1537
1418	$self->alloc;	1538	$self->alloc;
		1539
		1540	$self->pre_load;
		1541	Coro::cede;
		1542
1419	$self->load_objects ($self->{load_path}, 1)	1543	$self->_load_objects ($self->{load_path}, 1)
1420	or return;	1544	or return;
1421		1545
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};	1547	if delete $self->{load_original};
1424		1548
1425	if (my $uniq = $path->uniq_path) {	1549	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	1550	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	1551	if (aio_open $uniq, O_RDONLY, 0) {
1428	$self->clear_unique_items;	1552	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	1553	$self->_load_objects ($uniq, 0);
1430	}	1554	}
1431	}	1555	}
1432		1556
1433	Coro::cede;	1557	Coro::cede;
1434
1435	# now do the right thing for maps	1558	# now do the right thing for maps
1436	$self->link_multipart_objects;	1559	$self->link_multipart_objects;
1437
1438	if ($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)	1560	$self->difficulty ($self->estimate_difficulty)
1447	unless $self->difficulty;	1561	unless $self->difficulty;
		1562	Coro::cede;
		1563
		1564	unless ($self->{deny_activate}) {
		1565	$self->decay_objects;
		1566	$self->fix_auto_apply;
		1567	$self->update_buttons;
		1568	Coro::cede;
		1569	$self->set_darkness_map;
		1570	Coro::cede;
1448	$self->activate;	1571	$self->activate;
1449	}	1572	}
1450		1573
1451	Coro::cede;
1452
1453	$self->in_memory (cf::MAP_IN_MEMORY);	1574	$self->in_memory (cf::MAP_IN_MEMORY);
		1575	}
		1576
		1577	$self->post_load;
		1578	}
		1579
		1580	sub customise_for {
		1581	my ($self, $ob) = @_;
		1582
		1583	return find "~" . $ob->name . "/" . $self->{path}
		1584	if $self->per_player;
		1585
		1586	$self
		1587	}
		1588
		1589	# find and load all maps in the 3x3 area around a map
		1590	sub load_diag {
		1591	my ($map) = @_;
		1592
		1593	my @diag; # diagonal neighbours
		1594
		1595	for (0 .. 3) {
		1596	my $neigh = $map->tile_path ($_)
		1597	or next;
		1598	$neigh = find $neigh, $map
		1599	or next;
		1600	$neigh->load;
		1601
		1602	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1603	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1604	}
		1605
		1606	for (@diag) {
		1607	my $neigh = find @$_
		1608	or next;
		1609	$neigh->load;
		1610	}
1454	}	1611	}
1455		1612
1456	sub find_sync {	1613	sub find_sync {
1457	my ($path, $origin) = @_;	1614	my ($path, $origin) = @_;
1458		1615
1459	cf::sync_job { cf::map::find $path, $origin }	1616	cf::sync_job { find $path, $origin }
1460	}	1617	}
1461		1618
1462	sub do_load_sync {	1619	sub do_load_sync {
1463	my ($map) = @_;	1620	my ($map) = @_;
1464		1621
1465	cf::sync_job { $map->load };	1622	cf::sync_job { $map->load };
1466	}	1623	}
1467		1624
		1625	our %MAP_PREFETCH;
		1626	our $MAP_PREFETCHER = undef;
		1627
		1628	sub find_async {
		1629	my ($path, $origin) = @_;
		1630
		1631	$path = normalise $path, $origin && $origin->{path};
		1632
		1633	if (my $map = $cf::MAP{$path}) {
		1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1635	}
		1636
		1637	undef $MAP_PREFETCH{$path};
		1638	$MAP_PREFETCHER ||= cf::async {
		1639	while (%MAP_PREFETCH) {
		1640	for my $path (keys %MAP_PREFETCH) {
		1641	my $map = find $path
		1642	or next;
		1643	$map->load;
		1644
		1645	delete $MAP_PREFETCH{$path};
		1646	}
		1647	}
		1648	undef $MAP_PREFETCHER;
		1649	};
		1650	$MAP_PREFETCHER->prio (6);
		1651
		1652	()
		1653	}
		1654
1468	sub save {	1655	sub save {
1469	my ($self) = @_;	1656	my ($self) = @_;
1470		1657
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	1658	my $lock = cf::lock_acquire "map_data:" . $self->path;
1472		1659
1473	$self->{last_save} = $cf::RUNTIME;	1660	$self->{last_save} = $cf::RUNTIME;
1474		1661
1475	return unless $self->dirty;	1662	return unless $self->dirty;
1476		1663
1477	my $save = $self->{path}->save_path; utf8::encode $save;	1664	my $save = $self->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1665	my $uniq = $self->uniq_path; utf8::encode $uniq;
1479		1666
1480	$self->{load_path} = $save;	1667	$self->{load_path} = $save;
1481		1668
1482	return if $self->{deny_save};	1669	return if $self->{deny_save};
1483		1670
…		…
1486	cf::async {	1673	cf::async {
1487	$_->contr->save for $self->players;	1674	$_->contr->save for $self->players;
1488	};	1675	};
1489		1676
1490	if ($uniq) {	1677	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);	1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {	1680	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1681	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}	1682	}
1496	}	1683	}
1497		1684
1498	sub swap_out {	1685	sub swap_out {
1499	my ($self) = @_;	1686	my ($self) = @_;
…		…
1513		1700
1514	sub reset_at {	1701	sub reset_at {
1515	my ($self) = @_;	1702	my ($self) = @_;
1516		1703
1517	# TODO: safety, remove and allow resettable per-player maps	1704	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};	1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1519	return 1e99 if $self->{deny_reset};	1706	return 1e99 if $self->{deny_reset};
1520		1707
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		1710
…		…
1528	my ($self) = @_;	1715	my ($self) = @_;
1529		1716
1530	$self->reset_at <= $cf::RUNTIME	1717	$self->reset_at <= $cf::RUNTIME
1531	}	1718	}
1532		1719
1533	sub unlink_save {
1534	my ($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	$self->save;
1552	}
1553
1554	sub reset {	1720	sub reset {
1555	my ($self) = @_;	1721	my ($self) = @_;
1556		1722
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	1723	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		1724
1559	return if $self->players;	1725	return if $self->players;
1560	return if $self->{path}{user_rel};#d#	1726	return if $self->isa ("ext::map_per_player");#d#
1561		1727
1562	warn "resetting map ", $self->path;#d#	1728	warn "resetting map ", $self->path;#d#
1563		1729
		1730	$self->in_memory (cf::MAP_SWAPPED);
		1731
		1732	# need to save uniques path
		1733	unless ($self->{deny_save}) {
		1734	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1735
		1736	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1737	if $uniq;
		1738	}
		1739
1564	delete $cf::MAP{$self->path};	1740	delete $cf::MAP{$self->path};
		1741
		1742	$self->clear;
1565		1743
1566	$_->clear_links_to ($self) for values %cf::MAP;	1744	$_->clear_links_to ($self) for values %cf::MAP;
1567		1745
1568	$self->unlink_save;	1746	$self->unlink_save;
1569	$self->destroy;	1747	$self->destroy;
…		…
1572	my $nuke_counter = "aaaa";	1750	my $nuke_counter = "aaaa";
1573		1751
1574	sub nuke {	1752	sub nuke {
1575	my ($self) = @_;	1753	my ($self) = @_;
1576		1754
		1755	delete $cf::MAP{$self->path};
		1756
		1757	$self->unlink_save;
		1758
		1759	bless $self, "cf::map";
		1760	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	1761	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	1762	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1764
		1765	$cf::MAP{$self->path} = $self;
		1766
1580	$self->reset; # polite request, might not happen	1767	$self->reset; # polite request, might not happen
1581	}	1768	}
1582		1769
1583	sub customise_for {	1770	=item cf::map::unique_maps
1584	my ($map, $ob) = @_;
1585		1771
1586	if ($map->per_player) {	1772	Returns an arrayref of paths of all shared maps that have
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1773	instantiated unique items. May block.
1588	}
1589		1774
1590	$map	1775	=cut
1591	}
1592		1776
1593	sub emergency_save {	1777	sub unique_maps() {
1594	my $freeze_guard = cf::freeze_mainloop;	1778	my $files = aio_readdir $UNIQUEDIR
		1779	or return;
1595		1780
1596	warn "enter emergency perl save\n";	1781	my @paths;
1597		1782
1598	cf::sync_job {	1783	for (@$files) {
1599	warn "begin emergency player save\n";	1784	utf8::decode $_;
1600	$_->save for values %cf::PLAYER;	1785	next if /\.pst$/;
1601	warn "end emergency player save\n";	1786	next unless /^$PATH_SEP/o;
1602		1787
1603	warn "begin emergency map save\n";	1788	push @paths, cf::map::normalise $_;
1604	$_->save for values %cf::MAP;
1605	warn "end emergency map save\n";
1606	};	1789	}
1607		1790
1608	warn "leave emergency perl save\n";	1791	\@paths
1609	}	1792	}
1610		1793
1611	package cf;	1794	package cf;
1612		1795
1613	=back	1796	=back
1614		1797
		1798	=head3 cf::object
		1799
		1800	=cut
		1801
		1802	package cf::object;
		1803
		1804	=over 4
		1805
		1806	=item $ob->inv_recursive
		1807
		1808	Returns the inventory of the object _and_ their inventories, recursively.
		1809
		1810	=cut
		1811
		1812	sub inv_recursive_;
		1813	sub inv_recursive_ {
		1814	map { $_, inv_recursive_ $_->inv } @_
		1815	}
		1816
		1817	sub inv_recursive {
		1818	inv_recursive_ inv $_[0]
		1819	}
		1820
		1821	package cf;
		1822
		1823	=back
1615		1824
1616	=head3 cf::object::player	1825	=head3 cf::object::player
1617		1826
1618	=over 4	1827	=over 4
1619		1828
…		…
1659		1868
1660	=item $player_object->enter_link	1869	=item $player_object->enter_link
1661		1870
1662	Freezes the player and moves him/her to a special map (C<{link}>).	1871	Freezes the player and moves him/her to a special map (C<{link}>).
1663		1872
1664	The player should be reaosnably safe there for short amounts of time. You	1873	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.	1874	I<MUST> call C<leave_link> as soon as possible, though.
1666		1875
		1876	Will never block.
		1877
1667	=item $player_object->leave_link ($map, $x, $y)	1878	=item $player_object->leave_link ($map, $x, $y)
1668		1879
1669	Moves the player out of the specila link map onto the given map. If the	1880	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	1881	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	1882	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	1883	fails, to the emergency map position.
1673		1884
1674	Might block.	1885	Might block.
1675		1886
1676	=cut	1887	=cut
		1888
		1889	sub link_map {
		1890	unless ($LINK_MAP) {
		1891	$LINK_MAP = cf::map::find "{link}"
		1892	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1893	$LINK_MAP->load;
		1894	}
		1895
		1896	$LINK_MAP
		1897	}
1677		1898
1678	sub cf::object::player::enter_link {	1899	sub cf::object::player::enter_link {
1679	my ($self) = @_;	1900	my ($self) = @_;
1680		1901
1681	$self->deactivate_recursive;	1902	$self->deactivate_recursive;
1682		1903
1683	return if $self->map == $LINK_MAP;	1904	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		1905
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	1907	if $self->map && $self->map->{path} ne "{link}";
1687		1908
1688	$self->enter_map ($LINK_MAP, 20, 20);	1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1689	}	1910	}
1690		1911
1691	sub cf::object::player::leave_link {	1912	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	1913	my ($self, $map, $x, $y) = @_;
		1914
		1915	return unless $self->contr->active;
1693		1916
1694	my $link_pos = delete $self->{_link_pos};	1917	my $link_pos = delete $self->{_link_pos};
1695		1918
1696	unless ($map) {	1919	unless ($map) {
1697	# restore original map position	1920	# restore original map position
…		…
1711	# use -1 or undef as default coordinates, not 0, 0	1934	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	1935	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	1936	if $x <=0 && $y <= 0;
1714		1937
1715	$map->load;	1938	$map->load;
		1939	$map->load_diag;
1716		1940
1717	return unless $self->contr->active;	1941	return unless $self->contr->active;
1718	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1719	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1720	}	1946	}
1721		1947
1722	cf::player->attach (
1723	on_logout => sub {
1724	my ($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)	1948	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1755		1949
		1950	Moves the player to the given map-path and coordinates by first freezing
		1951	her, loading and preparing them map, calling the provided $check callback
		1952	that has to return the map if sucecssful, and then unfreezes the player on
		1953	the new (success) or old (failed) map position.
		1954
1756	=cut	1955	=cut
		1956
		1957	our $GOTOGEN;
1757		1958
1758	sub cf::object::player::goto {	1959	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	1960	my ($self, $path, $x, $y, $check) = @_;
1760		1961
1761	$path = new cf::path $path;	1962	# do generation counting so two concurrent goto's will be executed in-order
1762	$path ne "/" or Carp::cluck ("oy");#d#	1963	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		1964
1764	$self->enter_link;	1965	$self->enter_link;
1765		1966
1766	(async {	1967	(async {
		1968	my $map = eval {
1767	my $map = cf::map::find $path->as_string;	1969	my $map = cf::map::find $path;
		1970
		1971	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	1972	$map = $map->customise_for ($self);
1769		1973	$map = $check->($map) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	1974	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1975	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1976	}
1774		1977
		1978	$map
		1979	};
		1980
		1981	if ($@) {
		1982	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1983	LOG llevError | logBacktrace, Carp::longmess $@;
		1984	}
		1985
		1986	if ($gen == $self->{_goto_generation}) {
		1987	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	1988	$self->leave_link ($map, $x, $y);
		1989	}
1776	})->prio (1);	1990	})->prio (1);
1777	}	1991	}
1778		1992
1779	=item $player_object->enter_exit ($exit_object)	1993	=item $player_object->enter_exit ($exit_object)
1780		1994
…		…
1782		1996
1783	sub parse_random_map_params {	1997	sub parse_random_map_params {
1784	my ($spec) = @_;	1998	my ($spec) = @_;
1785		1999
1786	my $rmp = { # defaults	2000	my $rmp = { # defaults
1787	xsize => 10,	2001	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2002	ysize => (cf::rndm 15, 40),
		2003	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2004	#layout => string,
1789	};	2005	};
1790		2006
1791	for (split /\n/, $spec) {	2007	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2008	my ($k, $v) = split /\s+/, $_, 2;
1793		2009
…		…
1797	$rmp	2013	$rmp
1798	}	2014	}
1799		2015
1800	sub prepare_random_map {	2016	sub prepare_random_map {
1801	my ($exit) = @_;	2017	my ($exit) = @_;
		2018
		2019	my $guard = cf::lock_acquire "exit_prepare:$exit";
1802		2020
1803	# all this does is basically replace the /! path by	2021	# all this does is basically replace the /! path by
1804	# a new random map path (?random/...) with a seed	2022	# a new random map path (?random/...) with a seed
1805	# that depends on the exit object	2023	# that depends on the exit object
1806		2024
1807	my $rmp = parse_random_map_params $exit->msg;	2025	my $rmp = parse_random_map_params $exit->msg;
1808		2026
1809	if ($exit->map) {	2027	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2028	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2029	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2030	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2031	$rmp->{origin_y} = $exit->y;
1814	}	2032	}
1815		2033
1816	$rmp->{random_seed} ||= $exit->random_seed;	2034	$rmp->{random_seed} ||= $exit->random_seed;
1817		2035
1818	my $data = cf::to_json $rmp;	2036	my $data = cf::to_json $rmp;
1819	my $md5 = Digest::MD5::md5_hex $data;	2037	my $md5 = Digest::MD5::md5_hex $data;
		2038	my $meta = "$RANDOMDIR/$md5.meta";
1820		2039
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2040	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2041	aio_write $fh, 0, (length $data), $data, 0;
		2042	undef $fh;
		2043	aio_rename "$meta~", $meta;
1823		2044
1824	$exit->slaying ("?random/$md5");	2045	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2046	$exit->msg (undef);
1826	}	2047	}
1827	}	2048	}
1828		2049
1829	sub cf::object::player::enter_exit {	2050	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2051	my ($self, $exit) = @_;
1831		2052
1832	return unless $self->type == cf::PLAYER;	2053	return unless $self->type == cf::PLAYER;
		2054
		2055	if ($exit->slaying eq "/!") {
		2056	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2057	# the problem is that $exit might not survive long enough
		2058	# so it needs to be done right now, right here
		2059	cf::sync_job { prepare_random_map $exit };
		2060	}
		2061
		2062	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2063	my $hp = $exit->stats->hp;
		2064	my $sp = $exit->stats->sp;
1833		2065
1834	$self->enter_link;	2066	$self->enter_link;
1835		2067
1836	(async {	2068	(async {
1837	$self->deactivate_recursive; # just to be sure	2069	$self->deactivate_recursive; # just to be sure
1838	unless (eval {	2070	unless (eval {
1839	prepare_random_map $exit	2071	$self->goto ($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		2072
1845	1;	2073	1;
1846	}) {	2074	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2075	$self->message ("Something went wrong deep within the crossfire server. "
1848	. "I'll try to bring you back to the map you were before. "	2076	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2077	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2078	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2079
1852	warn "ERROR in enter_exit: $@";	2080	warn "ERROR in enter_exit: $@";
1853	$self->leave_link;	2081	$self->leave_link;
1854	}	2082	}
1855	})->prio (1);	2083	})->prio (1);
…		…
1868		2096
1869	sub cf::client::send_drawinfo {	2097	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2098	my ($self, $text, $flags) = @_;
1871		2099
1872	utf8::encode $text;	2100	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2101	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2102	}
1875		2103
		2104	=item $client->ext_event ($type, %msg)
		2105
		2106	Sends an exti event to the client.
		2107
		2108	=cut
		2109
		2110	sub cf::client::ext_event($$%) {
		2111	my ($self, $type, %msg) = @_;
		2112
		2113	$msg{msgtype} = "event_$type";
		2114	$self->send_packet ("ext " . cf::to_json \%msg);
		2115	}
1876		2116
1877	=item $success = $client->query ($flags, "text", \&cb)	2117	=item $success = $client->query ($flags, "text", \&cb)
1878		2118
1879	Queues a query to the client, calling the given callback with	2119	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>,	2120	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1909	# get handled first	2149	# get handled first
1910	my $queue = delete $ns->{query_queue}	2150	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	2151	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		2152
1913	(shift @$queue)->[1]->($msg);	2153	(shift @$queue)->[1]->($msg);
		2154	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		2155
1915	push @{ $ns->{query_queue} }, @$queue;	2156	push @{ $ns->{query_queue} }, @$queue;
1916		2157
1917	if (@{ $ns->{query_queue} } == @$queue) {	2158	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	2159	if (@$queue) {
…		…
1976		2217
1977	# here we export the classes and methods available to script code	2218	# here we export the classes and methods available to script code
1978		2219
1979	=pod	2220	=pod
1980		2221
1981	The following fucntions and emthods are available within a safe environment:	2222	The following functions and methods are available within a safe environment:
1982		2223
1983	cf::object contr pay_amount pay_player map	2224	cf::object contr pay_amount pay_player map
1984	cf::object::player player	2225	cf::object::player player
1985	cf::player peaceful	2226	cf::player peaceful
1986	cf::map trigger	2227	cf::map trigger
…		…
2071	#############################################################################	2312	#############################################################################
2072		2313
2073	=head2 EXTENSION DATABASE SUPPORT	2314	=head2 EXTENSION DATABASE SUPPORT
2074		2315
2075	Crossfire maintains a very simple database for extension use. It can	2316	Crossfire maintains a very simple database for extension use. It can
2076	currently store anything that can be serialised using Storable, which	2317	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2077	excludes objects.	2318	convert to/from binary).
2078		2319
2079	The parameter C<$family> should best start with the name of the extension	2320	The parameter C<$family> should best start with the name of the extension
2080	using it, it should be unique.	2321	using it, it should be unique.
2081		2322
2082	=over 4	2323	=over 4
2083		2324
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	2325	=item $value = cf::db_get $family => $key
2091		2326
2092	Returns a single value from the database	2327	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		2328
2099	=item cf::db_put $family => $key => $value	2329	=item cf::db_put $family => $key => $value
2100		2330
2101	Stores the given C<$value> in the family hash. Updates are delayed, if you	2331	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		2332
2112	=cut	2333	=cut
2113		2334
2114	our $DB;	2335	our $DB;
2115		2336
2116	{	2337	sub db_init {
2117	my $path = cf::localdir . "/database.pst";	2338	unless ($DB) {
		2339	$DB = BDB::db_create $DB_ENV;
2118		2340
2119	sub db_load() {	2341	cf::sync_job {
2120	$DB = stat $path ? Storable::retrieve $path : { };	2342	eval {
2121	}	2343	$DB->set_flags (BDB::CHKSUM);
2122		2344
2123	my $pid;	2345	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2124		2346	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2125	sub db_save() {	2347	cf::cleanup "db_open(db): $!" if $!;
2126	waitpid $pid, 0 if $pid;	2348	};
2127	if (0 == ($pid = fork)) {	2349	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	}	2350	};
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	});	2351	}
		2352	}
2145		2353
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}
2150
2151	sub db_get($;$) {	2354	sub db_get($$) {
2152	@_ >= 2	2355	my $key = "$_[0]/$_[1]";
2153	? $DB->{$_[0]}{$_[1]}
2154	: ($DB->{$_[0]} ||= { })
2155	}
2156		2356
		2357	cf::sync_job {
		2358	BDB::db_get $DB, undef, $key, my $data;
		2359
		2360	$! ? ()
		2361	: $data
		2362	}
		2363	}
		2364
2157	sub db_put($$;$) {	2365	sub db_put($$$) {
2158	if (@_ >= 3) {	2366	BDB::dbreq_pri 4;
2159	$DB->{$_[0]}{$_[1]} = $_[2];	2367	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2160	} else {	2368	}
2161	$DB->{$_[0]} = $_[1];
2162	}
2163	db_dirty;
2164	}
2165		2369
2166	cf::global->attach (	2370	=item cf::cache $id => [$paths...], $processversion => $process
2167	prio => 10000,	2371
2168	on_cleanup => sub {	2372	Generic caching function that returns the value of the resource $id,
2169	db_sync;	2373	caching and regenerating as required.
		2374
		2375	This function can block.
		2376
		2377	=cut
		2378
		2379	sub cache {
		2380	my ($id, $src, $processversion, $process) = @_;
		2381
		2382	my $meta =
		2383	join "\x00",
		2384	$processversion,
		2385	map {
		2386	aio_stat $_
		2387	and Carp::croak "$_: $!";
		2388
		2389	($_, (stat _)[7,9])
		2390	} @$src;
		2391
		2392	my $dbmeta = db_get cache => "$id/meta";
		2393	if ($dbmeta ne $meta) {
		2394	# changed, we may need to process
		2395
		2396	my @data;
		2397	my $md5;
		2398
		2399	for (0 .. $#$src) {
		2400	0 <= aio_load $src->[$_], $data[$_]
		2401	or Carp::croak "$src->[$_]: $!";
2170	},	2402	}
2171	);	2403
		2404	# if processing is expensive, check
		2405	# checksum first
		2406	if (1) {
		2407	$md5 =
		2408	join "\x00",
		2409	$processversion,
		2410	map {
		2411	Coro::cede;
		2412	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2413	} 0.. $#$src;
		2414
		2415
		2416	my $dbmd5 = db_get cache => "$id/md5";
		2417	if ($dbmd5 eq $md5) {
		2418	db_put cache => "$id/meta", $meta;
		2419
		2420	return db_get cache => "$id/data";
		2421	}
		2422	}
		2423
		2424	my $t1 = Time::HiRes::time;
		2425	my $data = $process->(\@data);
		2426	my $t2 = Time::HiRes::time;
		2427
		2428	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2429
		2430	db_put cache => "$id/data", $data;
		2431	db_put cache => "$id/md5" , $md5;
		2432	db_put cache => "$id/meta", $meta;
		2433
		2434	return $data;
		2435	}
		2436
		2437	db_get cache => "$id/data"
		2438	}
		2439
		2440	=item fork_call { }, $args
		2441
		2442	Executes the given code block with the given arguments in a seperate
		2443	process, returning the results. Everything must be serialisable with
		2444	Coro::Storable. May, of course, block. Note that the executed sub may
		2445	never block itself or use any form of Event handling.
		2446
		2447	=cut
		2448
		2449	sub fork_call(&@) {
		2450	my ($cb, @args) = @_;
		2451
		2452	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2453	# or die "socketpair: $!";
		2454	pipe my $fh1, my $fh2
		2455	or die "pipe: $!";
		2456
		2457	if (my $pid = fork) {
		2458	close $fh2;
		2459
		2460	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2461	$res = Coro::Storable::thaw $res;
		2462
		2463	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2464
		2465	die $$res unless "ARRAY" eq ref $res;
		2466
		2467	return wantarray ? @$res : $res->[-1];
		2468	} else {
		2469	reset_signals;
		2470	local $SIG{__WARN__};
		2471	local $SIG{__DIE__};
		2472	eval {
		2473	close $fh1;
		2474
		2475	my @res = eval { $cb->(@args) };
		2476	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2477	};
		2478
		2479	warn $@ if $@;
		2480	_exit 0;
		2481	}
2172	}	2482	}
2173		2483
2174	#############################################################################	2484	#############################################################################
2175	# the server's main()	2485	# the server's init and main functions
		2486
		2487	sub load_facedata($) {
		2488	my ($path) = @_;
		2489
		2490	warn "loading facedata from $path\n";
		2491
		2492	my $facedata;
		2493	0 < aio_load $path, $facedata
		2494	or die "$path: $!";
		2495
		2496	$facedata = Coro::Storable::thaw $facedata;
		2497
		2498	$facedata->{version} == 2
		2499	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2500
		2501	{
		2502	my $faces = $facedata->{faceinfo};
		2503
		2504	while (my ($face, $info) = each %$faces) {
		2505	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2506	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2507	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2508	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2509	Coro::cede;
		2510	}
		2511
		2512	while (my ($face, $info) = each %$faces) {
		2513	next unless $info->{smooth};
		2514	my $idx = cf::face::find $face
		2515	or next;
		2516	if (my $smooth = cf::face::find $info->{smooth}) {
		2517	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2518	} else {
		2519	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2520	}
		2521	Coro::cede;
		2522	}
		2523	}
		2524
		2525	{
		2526	my $anims = $facedata->{animinfo};
		2527
		2528	while (my ($anim, $info) = each %$anims) {
		2529	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2530	Coro::cede;
		2531	}
		2532
		2533	cf::anim::invalidate_all; # d'oh
		2534	}
		2535
		2536	1
		2537	}
		2538
		2539	sub reload_regions {
		2540	load_resource_file "$MAPDIR/regions"
		2541	or die "unable to load regions file\n";
		2542	}
		2543
		2544	sub reload_facedata {
		2545	load_facedata "$DATADIR/facedata"
		2546	or die "unable to load facedata\n";
		2547	}
		2548
		2549	sub reload_archetypes {
		2550	load_resource_file "$DATADIR/archetypes"
		2551	or die "unable to load archetypes\n";
		2552	}
		2553
		2554	sub reload_treasures {
		2555	load_resource_file "$DATADIR/treasures"
		2556	or die "unable to load treasurelists\n";
		2557	}
		2558
		2559	sub reload_resources {
		2560	warn "reloading resource files...\n";
		2561
		2562	reload_regions;
		2563	reload_facedata;
		2564	reload_archetypes;
		2565	reload_treasures;
		2566
		2567	warn "finished reloading resource files\n";
		2568	}
		2569
		2570	sub init {
		2571	reload_resources;
		2572	}
2176		2573
2177	sub cfg_load {	2574	sub cfg_load {
2178	open my $fh, "<:utf8", cf::confdir . "/config"	2575	open my $fh, "<:utf8", "$CONFDIR/config"
2179	or return;	2576	or return;
2180		2577
2181	local $/;	2578	local $/;
2182	*CFG = YAML::Syck::Load <$fh>;	2579	*CFG = YAML::Syck::Load <$fh>;
2183		2580
…		…
2197		2594
2198	sub main {	2595	sub main {
2199	# we must not ever block the main coroutine	2596	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	2597	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2598	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2599	(async {
2202	async { Event::one_event };	2600	Event::one_event;
		2601	})->prio (Coro::PRIO_MAX);
2203	};	2602	};
2204		2603
2205	cfg_load;	2604	cfg_load;
2206	db_load;	2605	db_init;
2207	load_extensions;	2606	load_extensions;
		2607
		2608	$TICK_WATCHER->start;
2208	Event::loop;	2609	Event::loop;
2209	}	2610	}
2210		2611
2211	#############################################################################	2612	#############################################################################
2212	# initialisation	2613	# initialisation and cleanup
2213		2614
		2615	# install some emergency cleanup handlers
		2616	BEGIN {
		2617	for my $signal (qw(INT HUP TERM)) {
		2618	Event->signal (
		2619	reentrant => 0,
		2620	data => WF_AUTOCANCEL,
		2621	signal => $signal,
		2622	prio => 0,
		2623	cb => sub {
		2624	cf::cleanup "SIG$signal";
		2625	},
		2626	);
		2627	}
		2628	}
		2629
		2630	sub emergency_save() {
		2631	my $freeze_guard = cf::freeze_mainloop;
		2632
		2633	warn "enter emergency perl save\n";
		2634
		2635	cf::sync_job {
		2636	# use a peculiar iteration method to avoid tripping on perl
		2637	# refcount bugs in for. also avoids problems with players
		2638	# and maps saved/destroyed asynchronously.
		2639	warn "begin emergency player save\n";
		2640	for my $login (keys %cf::PLAYER) {
		2641	my $pl = $cf::PLAYER{$login} or next;
		2642	$pl->valid or next;
		2643	$pl->save;
		2644	}
		2645	warn "end emergency player save\n";
		2646
		2647	warn "begin emergency map save\n";
		2648	for my $path (keys %cf::MAP) {
		2649	my $map = $cf::MAP{$path} or next;
		2650	$map->valid or next;
		2651	$map->save;
		2652	}
		2653	warn "end emergency map save\n";
		2654
		2655	warn "begin emergency database checkpoint\n";
		2656	BDB::db_env_txn_checkpoint $DB_ENV;
		2657	warn "end emergency database checkpoint\n";
		2658	};
		2659
		2660	warn "leave emergency perl save\n";
		2661	}
		2662
		2663	sub post_cleanup {
		2664	my ($make_core) = @_;
		2665
		2666	warn Carp::longmess "post_cleanup backtrace"
		2667	if $make_core;
		2668	}
		2669
2214	sub reload() {	2670	sub do_reload_perl() {
2215	# can/must only be called in main	2671	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	2672	if ($Coro::current != $Coro::main) {
2217	warn "can only reload from main coroutine\n";	2673	warn "can only reload from main coroutine";
2218	return;	2674	return;
2219	}	2675	}
2220		2676
2221	warn "reloading...";	2677	warn "reloading...";
2222		2678
2223	my $guard = freeze_mainloop;	2679	warn "entering sync_job";
		2680
		2681	cf::sync_job {
		2682	cf::write_runtime; # external watchdog should not bark
2224	cf::emergency_save;	2683	cf::emergency_save;
		2684	cf::write_runtime; # external watchdog should not bark
2225		2685
2226	eval {	2686	warn "syncing database to disk";
		2687	BDB::db_env_txn_checkpoint $DB_ENV;
		2688
2227	# if anything goes wrong in here, we should simply crash as we already saved	2689	# if anything goes wrong in here, we should simply crash as we already saved
2228		2690
2229	# cancel all watchers	2691	warn "cancelling all WF_AUTOCANCEL watchers";
2230	for (Event::all_watchers) {	2692	for (Event::all_watchers) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;	2693	$_->cancel if $_->data & WF_AUTOCANCEL;
2232	}	2694	}
2233		2695
		2696	warn "flushing outstanding aio requests";
		2697	for (;;) {
		2698	BDB::flush;
		2699	IO::AIO::flush;
		2700	Coro::cede;
		2701	last unless IO::AIO::nreqs || BDB::nreqs;
		2702	warn "iterate...";
		2703	}
		2704
		2705	++$RELOAD;
		2706
2234	# cancel all extension coros	2707	warn "cancelling all extension coros";
2235	$_->cancel for values %EXT_CORO;	2708	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	2709	%EXT_CORO = ();
2237		2710
2238	# unload all extensions	2711	warn "removing commands";
2239	for (@exts) {	2712	%COMMAND = ();
		2713
		2714	warn "removing ext commands";
		2715	%EXTCMD = ();
		2716
		2717	warn "unloading/nuking all extensions";
		2718	for my $pkg (@EXTS) {
2240	warn "unloading <$_>";	2719	warn "... unloading $pkg";
2241	unload_extension $_;	2720
		2721	if (my $cb = $pkg->can ("unload")) {
		2722	eval {
		2723	$cb->($pkg);
		2724	1
		2725	} or warn "$pkg unloaded, but with errors: $@";
2242	}	2726	}
2243		2727
		2728	warn "... nuking $pkg";
		2729	Symbol::delete_package $pkg;
		2730	}
		2731
2244	# unload all modules loaded from $LIBDIR	2732	warn "unloading all perl modules loaded from $LIBDIR";
2245	while (my ($k, $v) = each %INC) {	2733	while (my ($k, $v) = each %INC) {
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2734	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2247		2735
2248	warn "removing <$k>";	2736	warn "... unloading $k";
2249	delete $INC{$k};	2737	delete $INC{$k};
2250		2738
2251	$k =~ s/\.pm$//;	2739	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;	2740	$k =~ s/\//::/g;
2253		2741
…		…
2256	}	2744	}
2257		2745
2258	Symbol::delete_package $k;	2746	Symbol::delete_package $k;
2259	}	2747	}
2260		2748
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	2749	warn "getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	2750	Symbol::delete_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2751	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		2752
2269	# remove register_script_function callbacks
2270	# TODO
2271
2272	# unload cf.pm "a bit"	2753	warn "unloading cf.pm \"a bit\"";
2273	delete $INC{"cf.pm"};	2754	delete $INC{"cf.pm"};
		2755	delete $INC{"cf/pod.pm"};
2274		2756
2275	# don't, removes xs symbols, too,	2757	# don't, removes xs symbols, too,
2276	# and global variables created in xs	2758	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	2759	#Symbol::delete_package __PACKAGE__;
2278		2760
2279	# reload cf.pm	2761	warn "unload completed, starting to reload now";
		2762
2280	warn "reloading cf.pm";	2763	warn "reloading cf.pm";
2281	require cf;	2764	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2765	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2283		2766
2284	# load config and database again	2767	warn "loading config and database again";
2285	cf::cfg_load;	2768	cf::cfg_load;
2286	cf::db_load;
2287		2769
2288	# load extensions
2289	warn "load extensions";	2770	warn "loading extensions";
2290	cf::load_extensions;	2771	cf::load_extensions;
2291		2772
2292	# reattach attachments to objects	2773	warn "reattaching attachments to objects/players";
2293	warn "reattach";	2774	_global_reattach; # objects, sockets
2294	_global_reattach;	2775	warn "reattaching attachments to maps";
2295	reattach $_ for values %MAP;	2776	reattach $_ for values %MAP;
2296	};	2777	warn "reattaching attachments to players";
		2778	reattach $_ for values %PLAYER;
2297		2779
2298	if ($@) {	2780	warn "leaving sync_job";
		2781
		2782	1
		2783	} or do {
2299	warn $@;	2784	warn $@;
2300	warn "error while reloading, exiting.";	2785	warn "error while reloading, exiting.";
2301	exit 1;	2786	exit 1;
2302	}	2787	};
2303		2788
2304	warn "reloaded successfully";	2789	warn "reloaded";
2305	};	2790	};
2306		2791
2307	#############################################################################	2792	our $RELOAD_WATCHER; # used only during reload
2308		2793
2309	unless ($LINK_MAP) {	2794	sub reload_perl() {
2310	$LINK_MAP = cf::map::new;	2795	# doing reload synchronously and two reloads happen back-to-back,
		2796	# coro crashes during coro_state_free->destroy here.
2311		2797
2312	$LINK_MAP->width (41);	2798	$RELOAD_WATCHER ||= Event->timer (
2313	$LINK_MAP->height (41);	2799	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,	2800	after => 0,
		2801	data => WF_AUTOCANCEL,
2322	cb => sub {	2802	cb => sub {
2323	$_[0]->w->cancel;	2803	do_reload_perl;
2324		2804	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	});	2805	},
2343		2806	);
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	2807	}
2349
2350	register "<global>", __PACKAGE__;
2351		2808
2352	register_command "reload" => sub {	2809	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	2810	my ($who, $arg) = @_;
2354		2811
2355	if ($who->flag (FLAG_WIZ)) {	2812	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	2813	$who->message ("reloading server.");
		2814	async { reload_perl };
2359	}	2815	}
2360	};	2816	};
2361		2817
2362	unshift @INC, $LIBDIR;	2818	unshift @INC, $LIBDIR;
2363		2819
		2820	my $bug_warning = 0;
		2821
		2822	our @WAIT_FOR_TICK;
		2823	our @WAIT_FOR_TICK_BEGIN;
		2824
		2825	sub wait_for_tick {
		2826	return unless $TICK_WATCHER->is_active;
		2827	return if $Coro::current == $Coro::main;
		2828
		2829	my $signal = new Coro::Signal;
		2830	push @WAIT_FOR_TICK, $signal;
		2831	$signal->wait;
		2832	}
		2833
		2834	sub wait_for_tick_begin {
		2835	return unless $TICK_WATCHER->is_active;
		2836	return if $Coro::current == $Coro::main;
		2837
		2838	my $signal = new Coro::Signal;
		2839	push @WAIT_FOR_TICK_BEGIN, $signal;
		2840	$signal->wait;
		2841	}
		2842
		2843	my $min = 1e6;#d#
		2844	my $avg = 10;
2364	$TICK_WATCHER = Event->timer (	2845	$TICK_WATCHER = Event->timer (
2365	reentrant => 0,	2846	reentrant => 0,
		2847	parked => 1,
2366	prio => 0,	2848	prio => 0,
2367	at => $NEXT_TICK || $TICK,	2849	at => $NEXT_TICK || $TICK,
2368	data => WF_AUTOCANCEL,	2850	data => WF_AUTOCANCEL,
2369	cb => sub {	2851	cb => sub {
		2852	if ($Coro::current != $Coro::main) {
		2853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2854	unless ++$bug_warning > 10;
		2855	return;
		2856	}
		2857
		2858	$NOW = $tick_start = Event::time;
		2859
2370	cf::server_tick; # one server iteration	2860	cf::server_tick; # one server iteration
		2861
		2862	0 && sync_job {#d#
		2863	for(1..10) {
		2864	my $t = Event::time;
		2865	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2866	or die;
		2867
		2868	$map->width (50);
		2869	$map->height (50);
		2870	$map->alloc;
		2871	$map->_load_objects ("/tmp/x.map", 1);
		2872	my $t = Event::time - $t;
		2873
		2874	#next unless $t < 0.0013;#d#
		2875	if ($t < $min) {
		2876	$min = $t;
		2877	}
		2878	$avg = $avg * 0.99 + $t * 0.01;
		2879	}
		2880	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2881	exit 0;
		2882	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2883	};
		2884
2371	$RUNTIME += $TICK;	2885	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;	2886	$NEXT_TICK += $TICK;
2373		2887
		2888	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2889	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2890	Coro::async_pool {
		2891	write_runtime
		2892	or warn "ERROR: unable to write runtime file: $!";
		2893	};
		2894	}
		2895
		2896	# my $AFTER = Event::time;
		2897	# warn $AFTER - $NOW;#d#
		2898
		2899	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2900	$sig->send;
		2901	}
		2902	while (my $sig = shift @WAIT_FOR_TICK) {
		2903	$sig->send;
		2904	}
		2905
		2906	$NOW = Event::time;
		2907
2374	# if we are delayed by four ticks or more, skip them all	2908	# if we are delayed by four ticks or more, skip them all
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2909	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2376		2910
2377	$TICK_WATCHER->at ($NEXT_TICK);	2911	$TICK_WATCHER->at ($NEXT_TICK);
2378	$TICK_WATCHER->start;	2912	$TICK_WATCHER->start;
		2913
		2914	$LOAD = ($NOW - $tick_start) / $TICK;
		2915	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2916
		2917	_post_tick;
		2918
		2919
2379	},	2920	},
2380	);	2921	);
2381		2922
		2923	{
2382	IO::AIO::max_poll_time $TICK * 0.2;	2924	BDB::max_poll_time $TICK * 0.1;
2383		2925	$BDB_POLL_WATCHER = Event->io (
2384	Event->io (	2926	reentrant => 0,
2385	fd => IO::AIO::poll_fileno,	2927	fd => BDB::poll_fileno,
2386	poll => 'r',	2928	poll => 'r',
2387	prio => 5,	2929	prio => 0,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391
2392	Event->timer (
2393	data => WF_AUTOCANCEL,	2930	data => WF_AUTOCANCEL,
2394	after => 0,	2931	cb => \&BDB::poll_cb,
2395	interval => 10,	2932	);
2396	cb => sub {	2933	BDB::min_parallel 8;
2397	(Coro::unblock_sub {	2934
2398	write_runtime	2935	BDB::set_sync_prepare {
2399	or warn "ERROR: unable to write runtime file: $!";	2936	my $status;
		2937	my $current = $Coro::current;
		2938	(
		2939	sub {
		2940	$status = $!;
		2941	$current->ready; undef $current;
		2942	},
		2943	sub {
		2944	Coro::schedule while defined $current;
		2945	$! = $status;
		2946	},
		2947	)
		2948	};
		2949
		2950	unless ($DB_ENV) {
		2951	$DB_ENV = BDB::db_env_create;
		2952
		2953	cf::sync_job {
		2954	eval {
		2955	BDB::db_env_open
		2956	$DB_ENV,
		2957	$BDBDIR,
		2958	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2959	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2960	0666;
		2961
		2962	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2963
		2964	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2965	$DB_ENV->set_lk_detect;
		2966	};
		2967
		2968	cf::cleanup "db_env_open(db): $@" if $@;
2400	})->();	2969	};
2401	},	2970	}
2402	);	2971	}
		2972
		2973	{
		2974	IO::AIO::min_parallel 8;
		2975
		2976	undef $Coro::AIO::WATCHER;
		2977	IO::AIO::max_poll_time $TICK * 0.1;
		2978	$AIO_POLL_WATCHER = Event->io (
		2979	reentrant => 0,
		2980	data => WF_AUTOCANCEL,
		2981	fd => IO::AIO::poll_fileno,
		2982	poll => 'r',
		2983	prio => 6,
		2984	cb => \&IO::AIO::poll_cb,
		2985	);
		2986	}
		2987
		2988	my $_log_backtrace;
		2989
		2990	sub _log_backtrace {
		2991	my ($msg, @addr) = @_;
		2992
		2993	$msg =~ s/\n//;
		2994
		2995	# limit the # of concurrent backtraces
		2996	if ($_log_backtrace < 2) {
		2997	++$_log_backtrace;
		2998	async {
		2999	my @bt = fork_call {
		3000	@addr = map { sprintf "%x", $_ } @addr;
		3001	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3002	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3003	or die "addr2line: $!";
		3004
		3005	my @funcs;
		3006	my @res = <$fh>;
		3007	chomp for @res;
		3008	while (@res) {
		3009	my ($func, $line) = splice @res, 0, 2, ();
		3010	push @funcs, "[$func] $line";
		3011	}
		3012
		3013	@funcs
		3014	};
		3015
		3016	LOG llevInfo, "[ABT] $msg\n";
		3017	LOG llevInfo, "[ABT] $_\n" for @bt;
		3018	--$_log_backtrace;
		3019	};
		3020	} else {
		3021	LOG llevInfo, "[ABT] $msg\n";
		3022	LOG llevInfo, "[ABT] [suppressed]\n";
		3023	}
		3024	}
		3025
		3026	# load additional modules
		3027	use cf::pod;
2403		3028
2404	END { cf::emergency_save }	3029	END { cf::emergency_save }
2405		3030
2406	1	3031	1
2407		3032

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