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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 1.278 by root, Mon Jun 11 21:38:14 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';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		194
135	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	196	# within the Safe compartment.
137	for my $pkg (qw(	197	for my $pkg (qw(
138	cf::global cf::attachable	198	cf::global cf::attachable
…		…
146	}	206	}
147		207
148	$Event::DIED = sub {	208	$Event::DIED = sub {
149	warn "error in event callback: @_";	209	warn "error in event callback: @_";
150	};	210	};
151
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155		211
156	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
157		213
158	=over 4	214	=over 4
159		215
…		…
178	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
179	$d	235	$d
180	} || "[unable to dump $_[0]: '$@']";	236	} || "[unable to dump $_[0]: '$@']";
181	}	237	}
182		238
183	use JSON::Syck (); # TODO# replace by JSON::PC once working	239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
184		240
185	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
186		242
187	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
188		244
189	=cut
190
191	sub from_json($) {
192	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
193	JSON::Syck::Load $_[0]
194	}
195
196	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
197		246
198	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
199
200	=cut
201
202	sub to_json($) {
203	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
204	JSON::Syck::Dump $_[0]
205	}
206		248
207	=item cf::lock_wait $string	249	=item cf::lock_wait $string
208		250
209	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
210		252
…		…
216	returned.	258	returned.
217		259
218	Lock names should begin with a unique identifier (for example, cf::map::find	260	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
220		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
221	=cut	267	=cut
222		268
223	our %LOCK;	269	our %LOCK;
224		270
225	sub lock_wait($) {	271	sub lock_wait($) {
…		…
244	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
246	}	292	}
247	}	293	}
248		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
249	sub freeze_mainloop {	301	sub freeze_mainloop {
250	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
251		303
252	my $guard = Coro::guard { $TICK_WATCHER->start };	304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
253	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
254	$guard	308	$guard
255	}	309	}
256		310
257	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
279		333
280	sub sync_job(&) {	334	sub sync_job(&) {
281	my ($job) = @_;	335	my ($job) = @_;
282		336
283	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
284	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
285	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
286		342
287	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
288	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
299		355
300	while ($busy) {	356	while ($busy) {
301	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
302	}	358	}
303		359
		360	$time = Event::time - $time;
		361
		362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		364
		365	$tick_start += $time; # do not account sync jobs to server load
		366
304	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
305	} else {	368	} else {
306	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
307		370
308	$job->()	371	$job->()
309	}	372	}
310	}	373	}
311		374
312	=item $coro = cf::async_ext { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
313		376
314	Like async, but this coro is automcatially being canceled when the	377	Like async, but this coro is automatically being canceled when the
315	extension calling this is being unloaded.	378	extension calling this is being unloaded.
316		379
317	=cut	380	=cut
318		381
319	sub async_ext(&) {	382	sub async_ext(&) {
…		…
328		391
329	$coro	392	$coro
330	}	393	}
331		394
332	sub write_runtime {	395	sub write_runtime {
333	my $runtime = cf::localdir . "/runtime";	396	my $runtime = "$LOCALDIR/runtime";
		397
		398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
		403	my $guard = cf::lock_acquire "write_runtime";
334		404
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336	or return;	406	or return;
337		407
		408	my $value = $cf::RUNTIME + 90 + 10;
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;	413	and return;
341		414
		415	# always fsync - this file is important
342	aio_fsync $fh	416	aio_fsync $fh
343	and return;	417	and return;
344		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
345	close $fh	422	close $fh
346	or return;	423	or return;
347		424
348	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
349	and return;	426	and return;
350		427
		428	warn "runtime file written.\n";
		429
351	1	430	1
352	}	431	}
353		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
354	=back	444	=back
355		445
356	=cut	446	=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		447
480	#############################################################################	448	#############################################################################
481		449
482	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
483		451
…		…
609	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
610	our @CB_MAP = ();	578	our @CB_MAP = ();
611		579
612	my %attachment;	580	my %attachment;
613		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
614	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
615	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
616		590
617	use sort 'stable';	591	use sort 'stable';
618		592
…		…
652	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
653		627
654	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
655	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
656	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
657	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
658		632
659	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
660	my $pkg = shift @arg;	634	my $pkg = shift @arg;
661		635
662	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
703	if (ref $_[0]) {	677	if (ref $_[0]) {
704	_object_attach @_;	678	_object_attach @_;
705	} else {	679	} else {
706	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
707	}	681	}
		682	_recalc_want;
708	};	683	};
709		684
710	# all those should be optimised	685	# all those should be optimised
711	sub cf::attachable::detach {	686	sub cf::attachable::detach {
712	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
715	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
716	reattach ($obj);	691	reattach ($obj);
717	} else {	692	} else {
718	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
719	}	694	}
		695	_recalc_want;
720	};	696	};
721		697
722	sub cf::attachable::attached {	698	sub cf::attachable::attached {
723	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
724		700
…		…
789	# object support	765	# object support
790		766
791	sub reattach {	767	sub reattach {
792	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
793	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
794		772
795	my $registry = $obj->registry;	773	my $registry = $obj->registry;
796		774
797	@$registry = ();	775	@$registry = ();
798		776
…		…
845	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
846		824
847	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
848	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
849	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
850	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
851	close $fh;	829	close $fh;
852		830
853	if (@$objs) {	831	if (@$objs) {
854	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
855	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
856	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
857	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
858	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
859	close $fh;	837	close $fh;
860	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
861	}	839	}
862	} else {	840	} else {
863	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
895	or return;	873	or return;
896	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
897	}	875	}
898		876
899	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
900	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
901	return ($data, $av);	879	return ($data, $av);
902	}	880	}
903		881
904	#############################################################################	882	#############################################################################
905	# command handling &c	883	# command handling &c
…		…
930	=cut	908	=cut
931		909
932	sub register_extcmd {	910	sub register_extcmd {
933	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
934		912
935	my $caller = caller;
936	#warn "registering extcmd '$name' to '$caller'";
937
938	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
939	}	914	}
940		915
941	cf::player->attach (	916	cf::player->attach (
942	on_command => sub {	917	on_command => sub {
943	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
956		931
957	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
958		933
959	if (ref $msg) {	934	if (ref $msg) {
960	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
961	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
962	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
963	}	938	}
964	}	939	}
965	} else {	940	} else {
966	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
968		943
969	cf::override;	944	cf::override;
970	},	945	},
971	);	946	);
972		947
973	sub register {
974	my ($base, $pkg) = @_;
975
976	#TODO
977	}
978
979	sub load_extension {
980	my ($path) = @_;
981
982	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
983	my $base = $1;
984	my $pkg = $1;
985	$pkg =~ s/[^[:word:]]/_/g;
986	$pkg = "ext::$pkg";
987
988	warn "loading '$path' into '$pkg'\n";
989
990	open my $fh, "<:utf8", $path
991	or die "$path: $!";
992
993	my $source =
994	"package $pkg; use strict; use utf8;\n"
995	. "#line 1 \"$path\"\n{\n"
996	. (do { local $/; <$fh> })
997	. "\n};\n1";
998
999	eval $source
1000	or die $@ ? "$path: $@\n"
1001	: "extension disabled.\n";
1002
1003	push @exts, $pkg;
1004	$ext_pkg{$base} = $pkg;
1005
1006	# no strict 'refs';
1007	# @{"$pkg\::ISA"} = ext::;
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	# }
1022
1023	# remove commands
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	}
1048
1049	sub load_extensions {	948	sub load_extensions {
		949	cf::sync_job {
		950	my %todo;
		951
1050	for my $ext (<$LIBDIR/*.ext>) {	952	for my $path (<$LIBDIR/*.ext>) {
1051	next unless -r $ext;	953	next unless -r $path;
1052	eval {	954
1053	load_extension $ext;	955	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		956	my $base = $1;
		957	my $pkg = $1;
		958	$pkg =~ s/[^[:word:]]/_/g;
		959	$pkg = "ext::$pkg";
		960
		961	open my $fh, "<:utf8", $path
		962	or die "$path: $!";
		963
		964	my $source = do { local $/; <$fh> };
		965
		966	my %ext = (
		967	path => $path,
		968	base => $base,
		969	pkg => $pkg,
		970	);
		971
		972	$ext{meta} = { map { split /=/, $_, 2 } split /\s+/, $1 }
		973	if $source =~ /^#!.*?perl.*?#\s*(.*)$/;
		974
		975	$ext{source} =
		976	"package $pkg; use strict; use utf8;\n"
		977	. "#line 1 \"$path\"\n{\n"
		978	. $source
		979	. "\n};\n1";
		980
		981	$todo{$base} = \%ext;
		982	}
		983
		984	my %done;
		985	while (%todo) {
		986	my $progress;
		987
		988	while (my ($k, $v) = each %todo) {
		989	for (split /,\s*/, $ext{meta}{depends}) {
		990	goto skip
		991	unless exists $done{$_};
		992	}
		993
		994	warn "... loading '$k' into '$v->{pkg}'\n";
		995
		996	unless (eval $v->{source}) {
		997	my $msg = $@ ? "$v->{path}: $@\n"
		998	: "extension disabled.\n";
		999
		1000	if (exists $v->{meta}{mandatory}) {
		1001	warn $msg;
		1002	warn "mandatory extension failed to load, exiting.\n";
		1003	exit 1;
		1004	}
		1005
		1006	die $msg;
		1007	}
		1008
		1009	$done{$k} = delete $todo{$k};
		1010	push @EXTS, $v->{pkg};
1054	1	1011	}
1055	} or warn "$ext not loaded: $@";	1012
		1013	skip:
		1014	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1015	unless $progress;
		1016	}
1056	}	1017	};
1057	}	1018	}
1058		1019
1059	#############################################################################	1020	#############################################################################
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		1021
1097	=head2 CORE EXTENSIONS	1022	=head2 CORE EXTENSIONS
1098		1023
1099	Functions and methods that extend core crossfire objects.	1024	Functions and methods that extend core crossfire objects.
1100		1025
…		…
1113	Returns the given player object, loading it if necessary (might block).	1038	Returns the given player object, loading it if necessary (might block).
1114		1039
1115	=cut	1040	=cut
1116		1041
1117	sub playerdir($) {	1042	sub playerdir($) {
1118	cf::localdir	1043	"$PLAYERDIR/"
1119	. "/"
1120	. cf::playerdir
1121	. "/"
1122	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1044	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1123	}	1045	}
1124		1046
1125	sub path($) {	1047	sub path($) {
1126	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1048	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1127		1049
1128	(playerdir $login) . "/$login.pl"	1050	(playerdir $login) . "/playerdata"
1129	}	1051	}
1130		1052
1131	sub find_active($) {	1053	sub find_active($) {
1132	$cf::PLAYER{$_[0]}	1054	$cf::PLAYER{$_[0]}
1133	and $cf::PLAYER{$_[0]}->active	1055	and $cf::PLAYER{$_[0]}->active
…		…
1136		1058
1137	sub exists($) {	1059	sub exists($) {
1138	my ($login) = @_;	1060	my ($login) = @_;
1139		1061
1140	$cf::PLAYER{$login}	1062	$cf::PLAYER{$login}
1141	or cf::sync_job { !aio_stat $login }	1063	or cf::sync_job { !aio_stat path $login }
1142	}	1064	}
1143		1065
1144	sub find($) {	1066	sub find($) {
1145	return $cf::PLAYER{$_[0]} || do {	1067	return $cf::PLAYER{$_[0]} || do {
1146	my $login = $_[0];	1068	my $login = $_[0];
1147		1069
1148	my $guard = cf::lock_acquire "user_find:$login";	1070	my $guard = cf::lock_acquire "user_find:$login";
1149		1071
1150	$cf::PLAYER{$_[0]} || do {	1072	$cf::PLAYER{$_[0]} || do {
		1073	# rename old playerfiles to new ones
		1074	#TODO: remove when no longer required
		1075	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1076	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1077	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1078	aio_unlink +(playerdir $login) . "/$login.pl";
		1079
1151	my $pl = load_pl path $login	1080	my $pl = load_pl path $login
1152	or return;	1081	or return;
1153	$cf::PLAYER{$login} = $pl	1082	$cf::PLAYER{$login} = $pl
1154	}	1083	}
1155	}	1084	}
…		…
1192		1121
1193	=cut	1122	=cut
1194		1123
1195	sub quit_character {	1124	sub quit_character {
1196	my ($pl) = @_;	1125	my ($pl) = @_;
		1126
		1127	my $name = $pl->ob->name;
1197		1128
1198	$pl->{deny_save} = 1;	1129	$pl->{deny_save} = 1;
1199	$pl->password ("*"); # this should lock out the player until we nuked the dir	1130	$pl->password ("*"); # this should lock out the player until we nuked the dir
1200		1131
1201	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1132	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1206	my $path = playerdir $pl;	1137	my $path = playerdir $pl;
1207	my $temp = "$path~$cf::RUNTIME~deleting~";	1138	my $temp = "$path~$cf::RUNTIME~deleting~";
1208	aio_rename $path, $temp;	1139	aio_rename $path, $temp;
1209	delete $cf::PLAYER{$pl->ob->name};	1140	delete $cf::PLAYER{$pl->ob->name};
1210	$pl->destroy;	1141	$pl->destroy;
		1142
		1143	my $prefix = qr<^~\Q$name\E/>;
		1144
		1145	# nuke player maps
		1146	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1147
1211	IO::AIO::aio_rmtree $temp;	1148	IO::AIO::aio_rmtree $temp;
		1149	}
		1150
		1151	=item $pl->kick
		1152
		1153	Kicks a player out of the game. This destroys the connection.
		1154
		1155	=cut
		1156
		1157	sub kick {
		1158	my ($pl, $kicker) = @_;
		1159
		1160	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1161	$pl->killer ("kicked");
		1162	$pl->ns->destroy;
1212	}	1163	}
1213		1164
1214	=item cf::player::list_logins	1165	=item cf::player::list_logins
1215		1166
1216	Returns am arrayref of all valid playernames in the system, can take a	1167	Returns am arrayref of all valid playernames in the system, can take a
1217	while and may block, so not sync_job-capable, ever.	1168	while and may block, so not sync_job-capable, ever.
1218		1169
1219	=cut	1170	=cut
1220		1171
1221	sub list_logins {	1172	sub list_logins {
1222	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1173	my $dirs = aio_readdir $PLAYERDIR
1223	or return [];	1174	or return [];
1224		1175
1225	my @logins;	1176	my @logins;
1226		1177
1227	for my $login (@$dirs) {	1178	for my $login (@$dirs) {
1228	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1179	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1229	aio_read $fh, 0, 512, my $buf, 0 or next;	1180	aio_read $fh, 0, 512, my $buf, 0 or next;
1230	$buf !~ /^password -------------$/ or next; # official not-valid tag	1181	$buf !~ /^password -------------$/m or next; # official not-valid tag
1231		1182
1232	utf8::decode $login;	1183	utf8::decode $login;
1233	push @logins, $login;	1184	push @logins, $login;
1234	}	1185	}
1235		1186
1236	\@logins	1187	\@logins
1237	}	1188	}
1238		1189
1239	=item $player->maps	1190	=item $player->maps
1240		1191
1241	Returns an arrayref of cf::path's of all maps that are private for this	1192	Returns an arrayref of map paths that are private for this
1242	player. May block.	1193	player. May block.
1243		1194
1244	=cut	1195	=cut
1245		1196
1246	sub maps($) {	1197	sub maps($) {
1247	my ($pl) = @_;	1198	my ($pl) = @_;
		1199
		1200	$pl = ref $pl ? $pl->ob->name : $pl;
1248		1201
1249	my $files = aio_readdir playerdir $pl	1202	my $files = aio_readdir playerdir $pl
1250	or return;	1203	or return;
1251		1204
1252	my @paths;	1205	my @paths;
1253		1206
1254	for (@$files) {	1207	for (@$files) {
1255	utf8::decode $_;	1208	utf8::decode $_;
1256	next if /\.(?:pl|pst)$/;	1209	next if /\.(?:pl|pst)$/;
1257	next unless /^$PATH_SEP/;	1210	next unless /^$PATH_SEP/o;
1258		1211
1259	s/$PATH_SEP/\//g;	1212	push @paths, cf::map::normalise "~$pl/$_";
1260	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1261	}	1213	}
1262		1214
1263	\@paths	1215	\@paths
1264	}	1216	}
1265		1217
1266	=item $player->ext_reply ($msgid, $msgtype, %msg)	1218	=item $player->ext_reply ($msgid, %msg)
1267		1219
1268	Sends an ext reply to the player.	1220	Sends an ext reply to the player.
1269		1221
1270	=cut	1222	=cut
1271		1223
1272	sub ext_reply($$$%) {	1224	sub ext_reply($$%) {
1273	my ($self, $id, %msg) = @_;	1225	my ($self, $id, %msg) = @_;
1274		1226
1275	$msg{msgid} = $id;	1227	$msg{msgid} = $id;
1276		1228
1277	$self->send ("ext " . cf::to_json \%msg);	1229	$self->send ("ext " . cf::to_json \%msg);
1278	}	1230	}
1279		1231
1280	package cf;	1232	=item $player->ext_event ($type, %msg)
		1233
		1234	Sends an ext event to the client.
		1235
		1236	=cut
		1237
		1238	sub ext_event($$%) {
		1239	my ($self, $type, %msg) = @_;
		1240
		1241	$self->ns->ext_event ($type, %msg);
		1242	}
		1243
		1244	=head3 cf::region
		1245
		1246	=over 4
		1247
		1248	=cut
		1249
		1250	package cf::region;
		1251
		1252	=item cf::region::find_by_path $path
		1253
		1254	Tries to decuce the probable region for a map knowing only its path.
		1255
		1256	=cut
		1257
		1258	sub find_by_path($) {
		1259	my ($path) = @_;
		1260
		1261	my ($match, $specificity);
		1262
		1263	for my $region (list) {
		1264	if ($region->match && $path =~ $region->match) {
		1265	($match, $specificity) = ($region, $region->specificity)
		1266	if $region->specificity > $specificity;
		1267	}
		1268	}
		1269
		1270	$match
		1271	}
1281		1272
1282	=back	1273	=back
1283
1284		1274
1285	=head3 cf::map	1275	=head3 cf::map
1286		1276
1287	=over 4	1277	=over 4
1288		1278
…		…
1291	package cf::map;	1281	package cf::map;
1292		1282
1293	use Fcntl;	1283	use Fcntl;
1294	use Coro::AIO;	1284	use Coro::AIO;
1295		1285
		1286	use overload
		1287	'""' => \&as_string,
		1288	fallback => 1;
		1289
1296	our $MAX_RESET = 3600;	1290	our $MAX_RESET = 3600;
1297	our $DEFAULT_RESET = 3000;	1291	our $DEFAULT_RESET = 3000;
1298		1292
1299	sub generate_random_map {	1293	sub generate_random_map {
1300	my ($path, $rmp) = @_;	1294	my ($self, $rmp) = @_;
1301
1302	# mit "rum" bekleckern, nicht	1295	# mit "rum" bekleckern, nicht
1303	cf::map::_create_random_map	1296	$self->_create_random_map (
1304	$path,
1305	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1297	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1306	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1298	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1307	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1299	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1308	$rmp->{exit_on_final_map},	1300	$rmp->{exit_on_final_map},
1309	$rmp->{xsize}, $rmp->{ysize},	1301	$rmp->{xsize}, $rmp->{ysize},
1310	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1302	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1311	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1303	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1312	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1304	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1313	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1305	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1314	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1306	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1315	(cf::region::find $rmp->{region})	1307	(cf::region::find $rmp->{region}), $rmp->{custom}
		1308	)
		1309	}
		1310
		1311	=item cf::map->register ($regex, $prio)
		1312
		1313	Register a handler for the map path matching the given regex at the
		1314	givne priority (higher is better, built-in handlers have priority 0, the
		1315	default).
		1316
		1317	=cut
		1318
		1319	sub register {
		1320	my (undef, $regex, $prio) = @_;
		1321	my $pkg = caller;
		1322
		1323	no strict;
		1324	push @{"$pkg\::ISA"}, __PACKAGE__;
		1325
		1326	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1327	}
		1328
		1329	# also paths starting with '/'
		1330	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1331
		1332	sub thawer_merge {
		1333	my ($self, $merge) = @_;
		1334
		1335	# we have to keep some variables in memory intact
		1336	local $self->{path};
		1337	local $self->{load_path};
		1338
		1339	$self->SUPER::thawer_merge ($merge);
		1340	}
		1341
		1342	sub normalise {
		1343	my ($path, $base) = @_;
		1344
		1345	$path = "$path"; # make sure its a string
		1346
		1347	$path =~ s/\.map$//;
		1348
		1349	# map plan:
		1350	#
		1351	# /! non-realised random map exit (special hack!)
		1352	# {... are special paths that are not being touched
		1353	# ?xxx/... are special absolute paths
		1354	# ?random/... random maps
		1355	# /... normal maps
		1356	# ~user/... per-player map of a specific user
		1357
		1358	$path =~ s/$PATH_SEP/\//go;
		1359
		1360	# treat it as relative path if it starts with
		1361	# something that looks reasonable
		1362	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1363	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1364
		1365	$base =~ s{[^/]+/?$}{};
		1366	$path = "$base/$path";
		1367	}
		1368
		1369	for ($path) {
		1370	redo if s{//}{/};
		1371	redo if s{/\.?/}{/};
		1372	redo if s{/[^/]+/\.\./}{/};
		1373	}
		1374
		1375	$path
		1376	}
		1377
		1378	sub new_from_path {
		1379	my (undef, $path, $base) = @_;
		1380
		1381	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1382
		1383	$path = normalise $path, $base;
		1384
		1385	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1386	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1387	my $self = bless cf::map::new, $pkg;
		1388	$self->{path} = $path; $self->path ($path);
		1389	$self->init; # pass $1 etc.
		1390	return $self;
		1391	}
		1392	}
		1393
		1394	Carp::carp "unable to resolve path '$path' (base '$base').";
		1395	()
		1396	}
		1397
		1398	sub init {
		1399	my ($self) = @_;
		1400
		1401	$self
		1402	}
		1403
		1404	sub as_string {
		1405	my ($self) = @_;
		1406
		1407	"$self->{path}"
		1408	}
		1409
		1410	# the displayed name, this is a one way mapping
		1411	sub visible_name {
		1412	&as_string
		1413	}
		1414
		1415	# the original (read-only) location
		1416	sub load_path {
		1417	my ($self) = @_;
		1418
		1419	"$MAPDIR/$self->{path}.map"
		1420	}
		1421
		1422	# the temporary/swap location
		1423	sub save_path {
		1424	my ($self) = @_;
		1425
		1426	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1427	"$TMPDIR/$path.map"
		1428	}
		1429
		1430	# the unique path, undef == no special unique path
		1431	sub uniq_path {
		1432	my ($self) = @_;
		1433
		1434	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1435	"$UNIQUEDIR/$path"
1316	}	1436	}
1317		1437
1318	# and all this just because we cannot iterate over	1438	# and all this just because we cannot iterate over
1319	# all maps in C++...	1439	# all maps in C++...
1320	sub change_all_map_light {	1440	sub change_all_map_light {
…		…
1322		1442
1323	$_->change_map_light ($change)	1443	$_->change_map_light ($change)
1324	for grep $_->outdoor, values %cf::MAP;	1444	for grep $_->outdoor, values %cf::MAP;
1325	}	1445	}
1326		1446
		1447	sub decay_objects {
		1448	my ($self) = @_;
		1449
		1450	return if $self->{deny_reset};
		1451
		1452	$self->do_decay_objects;
		1453	}
		1454
		1455	sub unlink_save {
		1456	my ($self) = @_;
		1457
		1458	utf8::encode (my $save = $self->save_path);
		1459	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1460	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1461	}
		1462
1327	sub try_load_header($) {	1463	sub load_header_from($) {
1328	my ($path) = @_;	1464	my ($self, $path) = @_;
1329		1465
1330	utf8::encode $path;	1466	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	1467	#aio_open $path, O_RDONLY, 0
		1468	# or return;
		1469
		1470	$self->_load_header ($path)
1332	or return;	1471	or return;
1333		1472
1334	my $map = cf::map::new	1473	$self->{load_path} = $path;
		1474
		1475	1
		1476	}
		1477
		1478	sub load_header_orig {
		1479	my ($self) = @_;
		1480
		1481	$self->load_header_from ($self->load_path)
		1482	}
		1483
		1484	sub load_header_temp {
		1485	my ($self) = @_;
		1486
		1487	$self->load_header_from ($self->save_path)
		1488	}
		1489
		1490	sub prepare_temp {
		1491	my ($self) = @_;
		1492
		1493	$self->last_access ((delete $self->{last_access})
		1494	|| $cf::RUNTIME); #d#
		1495	# safety
		1496	$self->{instantiate_time} = $cf::RUNTIME
		1497	if $self->{instantiate_time} > $cf::RUNTIME;
		1498	}
		1499
		1500	sub prepare_orig {
		1501	my ($self) = @_;
		1502
		1503	$self->{load_original} = 1;
		1504	$self->{instantiate_time} = $cf::RUNTIME;
		1505	$self->last_access ($cf::RUNTIME);
		1506	$self->instantiate;
		1507	}
		1508
		1509	sub load_header {
		1510	my ($self) = @_;
		1511
		1512	if ($self->load_header_temp) {
		1513	$self->prepare_temp;
		1514	} else {
		1515	$self->load_header_orig
1335	or return;	1516	or return;
		1517	$self->prepare_orig;
		1518	}
1336		1519
1337	# for better error messages only, will be overwritten	1520	$self->{deny_reset} = 1
1338	$map->path ($path);	1521	if $self->no_reset;
1339		1522
1340	$map->load_header ($path)	1523	$self->default_region (cf::region::find_by_path $self->{path})
1341	or return;	1524	unless $self->default_region;
1342		1525
1343	$map->{load_path} = $path;	1526	1
1344
1345	$map
1346	}	1527	}
1347		1528
1348	sub find;	1529	sub find;
1349	sub find {	1530	sub find {
1350	my ($path, $origin) = @_;	1531	my ($path, $origin) = @_;
1351		1532
1352	#warn "find<$path,$origin>\n";#d#
1353
1354	$path = new cf::path $path, $origin && $origin->path;	1533	$path = normalise $path, $origin && $origin->path;
1355	my $key = $path->as_string;
1356		1534
1357	cf::lock_wait "map_find:$key";	1535	cf::lock_wait "map_find:$path";
1358		1536
1359	$cf::MAP{$key} || do {	1537	$cf::MAP{$path} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	1538	my $guard = cf::lock_acquire "map_find:$path";
1361		1539	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;	1540	or return;
1381		1541
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;	1542	$map->{last_save} = $cf::RUNTIME;
1394		1543
1395	Coro::cede;	1544	$map->load_header
		1545	or return;
1396		1546
1397	if ($map->should_reset) {	1547	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1548	# doing this can freeze the server in a sync job, obviously
		1549	#$cf::WAIT_FOR_TICK->wait;
1398	$map->reset;	1550	$map->reset;
1399	undef $guard;	1551	undef $guard;
1400	$map = find $path	1552	return find $path;
1401	or return;
1402	}	1553	}
1403		1554
1404	$cf::MAP{$key} = $map	1555	$cf::MAP{$path} = $map
1405	}	1556	}
1406	}	1557	}
		1558
		1559	sub pre_load { }
		1560	sub post_load { }
1407		1561
1408	sub load {	1562	sub load {
1409	my ($self) = @_;	1563	my ($self) = @_;
1410		1564
		1565	local $self->{deny_reset} = 1; # loading can take a long time
		1566
1411	my $path = $self->{path};	1567	my $path = $self->{path};
		1568
		1569	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1570	my $guard = cf::lock_acquire "map_load:$path";
1413		1571
1414	return if $self->in_memory != cf::MAP_SWAPPED;	1572	return if $self->in_memory != cf::MAP_SWAPPED;
1415		1573
1416	$self->in_memory (cf::MAP_LOADING);	1574	$self->in_memory (cf::MAP_LOADING);
1417		1575
1418	$self->alloc;	1576	$self->alloc;
		1577
		1578	$self->pre_load;
		1579	Coro::cede;
		1580
1419	$self->load_objects ($self->{load_path}, 1)	1581	$self->_load_objects ($self->{load_path}, 1)
1420	or return;	1582	or return;
1421		1583
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1584	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};	1585	if delete $self->{load_original};
1424		1586
1425	if (my $uniq = $path->uniq_path) {	1587	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	1588	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	1589	if (aio_open $uniq, O_RDONLY, 0) {
1428	$self->clear_unique_items;	1590	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	1591	$self->_load_objects ($uniq, 0);
1430	}	1592	}
1431	}	1593	}
1432		1594
1433	Coro::cede;	1595	Coro::cede;
1434
1435	# now do the right thing for maps	1596	# now do the right thing for maps
1436	$self->link_multipart_objects;	1597	$self->link_multipart_objects;
1437
1438	if ($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)	1598	$self->difficulty ($self->estimate_difficulty)
1447	unless $self->difficulty;	1599	unless $self->difficulty;
		1600	Coro::cede;
		1601
		1602	unless ($self->{deny_activate}) {
		1603	$self->decay_objects;
		1604	$self->fix_auto_apply;
		1605	$self->update_buttons;
		1606	Coro::cede;
		1607	$self->set_darkness_map;
		1608	Coro::cede;
1448	$self->activate;	1609	$self->activate;
1449	}	1610	}
1450		1611
1451	Coro::cede;
1452
1453	$self->in_memory (cf::MAP_IN_MEMORY);	1612	$self->in_memory (cf::MAP_IN_MEMORY);
		1613	}
		1614
		1615	$self->post_load;
		1616	}
		1617
		1618	sub customise_for {
		1619	my ($self, $ob) = @_;
		1620
		1621	return find "~" . $ob->name . "/" . $self->{path}
		1622	if $self->per_player;
		1623
		1624	# return find "?party/" . $ob->name . "/" . $self->{path}
		1625	# if $self->per_party;
		1626
		1627	$self
		1628	}
		1629
		1630	# find and load all maps in the 3x3 area around a map
		1631	sub load_diag {
		1632	my ($map) = @_;
		1633
		1634	my @diag; # diagonal neighbours
		1635
		1636	for (0 .. 3) {
		1637	my $neigh = $map->tile_path ($_)
		1638	or next;
		1639	$neigh = find $neigh, $map
		1640	or next;
		1641	$neigh->load;
		1642
		1643	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1644	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1645	}
		1646
		1647	for (@diag) {
		1648	my $neigh = find @$_
		1649	or next;
		1650	$neigh->load;
		1651	}
1454	}	1652	}
1455		1653
1456	sub find_sync {	1654	sub find_sync {
1457	my ($path, $origin) = @_;	1655	my ($path, $origin) = @_;
1458		1656
1459	cf::sync_job { cf::map::find $path, $origin }	1657	cf::sync_job { find $path, $origin }
1460	}	1658	}
1461		1659
1462	sub do_load_sync {	1660	sub do_load_sync {
1463	my ($map) = @_;	1661	my ($map) = @_;
1464		1662
1465	cf::sync_job { $map->load };	1663	cf::sync_job { $map->load };
1466	}	1664	}
1467		1665
		1666	our %MAP_PREFETCH;
		1667	our $MAP_PREFETCHER = undef;
		1668
		1669	sub find_async {
		1670	my ($path, $origin) = @_;
		1671
		1672	$path = normalise $path, $origin && $origin->{path};
		1673
		1674	if (my $map = $cf::MAP{$path}) {
		1675	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1676	}
		1677
		1678	undef $MAP_PREFETCH{$path};
		1679	$MAP_PREFETCHER ||= cf::async {
		1680	while (%MAP_PREFETCH) {
		1681	for my $path (keys %MAP_PREFETCH) {
		1682	my $map = find $path
		1683	or next;
		1684	$map->load;
		1685
		1686	delete $MAP_PREFETCH{$path};
		1687	}
		1688	}
		1689	undef $MAP_PREFETCHER;
		1690	};
		1691	$MAP_PREFETCHER->prio (6);
		1692
		1693	()
		1694	}
		1695
1468	sub save {	1696	sub save {
1469	my ($self) = @_;	1697	my ($self) = @_;
1470		1698
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	1699	my $lock = cf::lock_acquire "map_data:" . $self->path;
1472		1700
1473	$self->{last_save} = $cf::RUNTIME;	1701	$self->{last_save} = $cf::RUNTIME;
1474		1702
1475	return unless $self->dirty;	1703	return unless $self->dirty;
1476		1704
1477	my $save = $self->{path}->save_path; utf8::encode $save;	1705	my $save = $self->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1706	my $uniq = $self->uniq_path; utf8::encode $uniq;
1479		1707
1480	$self->{load_path} = $save;	1708	$self->{load_path} = $save;
1481		1709
1482	return if $self->{deny_save};	1710	return if $self->{deny_save};
1483		1711
…		…
1486	cf::async {	1714	cf::async {
1487	$_->contr->save for $self->players;	1715	$_->contr->save for $self->players;
1488	};	1716	};
1489		1717
1490	if ($uniq) {	1718	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1719	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);	1720	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {	1721	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1722	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}	1723	}
1496	}	1724	}
1497		1725
1498	sub swap_out {	1726	sub swap_out {
1499	my ($self) = @_;	1727	my ($self) = @_;
…		…
1513		1741
1514	sub reset_at {	1742	sub reset_at {
1515	my ($self) = @_;	1743	my ($self) = @_;
1516		1744
1517	# TODO: safety, remove and allow resettable per-player maps	1745	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};
1519	return 1e99 if $self->{deny_reset};	1746	return 1e99 if $self->{deny_reset};
1520		1747
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1748	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1749	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		1750
…		…
1528	my ($self) = @_;	1755	my ($self) = @_;
1529		1756
1530	$self->reset_at <= $cf::RUNTIME	1757	$self->reset_at <= $cf::RUNTIME
1531	}	1758	}
1532		1759
1533	sub unlink_save {
1534	my ($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	$self->save;
1552	}
1553
1554	sub reset {	1760	sub reset {
1555	my ($self) = @_;	1761	my ($self) = @_;
1556		1762
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	1763	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		1764
1559	return if $self->players;	1765	return if $self->players;
1560	return if $self->{path}{user_rel};#d#
1561		1766
1562	warn "resetting map ", $self->path;#d#	1767	warn "resetting map ", $self->path;
		1768
		1769	$self->in_memory (cf::MAP_SWAPPED);
		1770
		1771	# need to save uniques path
		1772	unless ($self->{deny_save}) {
		1773	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1774
		1775	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1776	if $uniq;
		1777	}
1563		1778
1564	delete $cf::MAP{$self->path};	1779	delete $cf::MAP{$self->path};
		1780
		1781	$self->clear;
1565		1782
1566	$_->clear_links_to ($self) for values %cf::MAP;	1783	$_->clear_links_to ($self) for values %cf::MAP;
1567		1784
1568	$self->unlink_save;	1785	$self->unlink_save;
1569	$self->destroy;	1786	$self->destroy;
…		…
1572	my $nuke_counter = "aaaa";	1789	my $nuke_counter = "aaaa";
1573		1790
1574	sub nuke {	1791	sub nuke {
1575	my ($self) = @_;	1792	my ($self) = @_;
1576		1793
		1794	delete $cf::MAP{$self->path};
		1795
		1796	$self->unlink_save;
		1797
		1798	bless $self, "cf::map";
		1799	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	1800	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	1801	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	1802	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1803
		1804	$cf::MAP{$self->path} = $self;
		1805
1580	$self->reset; # polite request, might not happen	1806	$self->reset; # polite request, might not happen
1581	}	1807	}
1582		1808
1583	sub customise_for {	1809	=item $maps = cf::map::tmp_maps
1584	my ($map, $ob) = @_;
1585		1810
1586	if ($map->per_player) {	1811	Returns an arrayref with all map paths of currently instantiated and saved
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1812	maps. May block.
		1813
		1814	=cut
		1815
		1816	sub tmp_maps() {
1588	}	1817	[
1589		1818	map {
1590	$map	1819	utf8::decode $_;
		1820	/\.map$/
		1821	? normalise $_
		1822	: ()
		1823	} @{ aio_readdir $TMPDIR or [] }
		1824	]
1591	}	1825	}
1592		1826
1593	sub emergency_save {	1827	=item $maps = cf::map::random_maps
1594	my $freeze_guard = cf::freeze_mainloop;
1595		1828
1596	warn "enter emergency perl save\n";	1829	Returns an arrayref with all map paths of currently instantiated and saved
		1830	random maps. May block.
1597		1831
1598	cf::sync_job {	1832	=cut
1599	warn "begin emergency player save\n";
1600	$_->save for values %cf::PLAYER;
1601	warn "end emergency player save\n";
1602		1833
1603	warn "begin emergency map save\n";	1834	sub random_maps() {
1604	$_->save for values %cf::MAP;	1835	[
1605	warn "end emergency map save\n";	1836	map {
1606	};	1837	utf8::decode $_;
		1838	/\.map$/
		1839	? normalise "?random/$_"
		1840	: ()
		1841	} @{ aio_readdir $RANDOMDIR or [] }
		1842	]
		1843	}
1607		1844
1608	warn "leave emergency perl save\n";	1845	=item cf::map::unique_maps
		1846
		1847	Returns an arrayref of paths of all shared maps that have
		1848	instantiated unique items. May block.
		1849
		1850	=cut
		1851
		1852	sub unique_maps() {
		1853	[
		1854	map {
		1855	utf8::decode $_;
		1856	/\.map$/
		1857	? normalise $_
		1858	: ()
		1859	} @{ aio_readdir $UNIQUEDIR or [] }
		1860	]
1609	}	1861	}
1610		1862
1611	package cf;	1863	package cf;
1612		1864
1613	=back	1865	=back
1614		1866
		1867	=head3 cf::object
		1868
		1869	=cut
		1870
		1871	package cf::object;
		1872
		1873	=over 4
		1874
		1875	=item $ob->inv_recursive
		1876
		1877	Returns the inventory of the object _and_ their inventories, recursively.
		1878
		1879	=cut
		1880
		1881	sub inv_recursive_;
		1882	sub inv_recursive_ {
		1883	map { $_, inv_recursive_ $_->inv } @_
		1884	}
		1885
		1886	sub inv_recursive {
		1887	inv_recursive_ inv $_[0]
		1888	}
		1889
		1890	package cf;
		1891
		1892	=back
1615		1893
1616	=head3 cf::object::player	1894	=head3 cf::object::player
1617		1895
1618	=over 4	1896	=over 4
1619		1897
…		…
1659		1937
1660	=item $player_object->enter_link	1938	=item $player_object->enter_link
1661		1939
1662	Freezes the player and moves him/her to a special map (C<{link}>).	1940	Freezes the player and moves him/her to a special map (C<{link}>).
1663		1941
1664	The player should be reaosnably safe there for short amounts of time. You	1942	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.	1943	I<MUST> call C<leave_link> as soon as possible, though.
1666		1944
		1945	Will never block.
		1946
1667	=item $player_object->leave_link ($map, $x, $y)	1947	=item $player_object->leave_link ($map, $x, $y)
1668		1948
1669	Moves the player out of the specila link map onto the given map. If the	1949	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	1950	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	1951	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	1952	fails, to the emergency map position.
1673		1953
1674	Might block.	1954	Might block.
1675		1955
1676	=cut	1956	=cut
		1957
		1958	sub link_map {
		1959	unless ($LINK_MAP) {
		1960	$LINK_MAP = cf::map::find "{link}"
		1961	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1962	$LINK_MAP->load;
		1963	}
		1964
		1965	$LINK_MAP
		1966	}
1677		1967
1678	sub cf::object::player::enter_link {	1968	sub cf::object::player::enter_link {
1679	my ($self) = @_;	1969	my ($self) = @_;
1680		1970
1681	$self->deactivate_recursive;	1971	$self->deactivate_recursive;
1682		1972
1683	return if $self->map == $LINK_MAP;	1973	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		1974
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1975	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	1976	if $self->map && $self->map->{path} ne "{link}";
1687		1977
1688	$self->enter_map ($LINK_MAP, 20, 20);	1978	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1689	}	1979	}
1690		1980
1691	sub cf::object::player::leave_link {	1981	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	1982	my ($self, $map, $x, $y) = @_;
		1983
		1984	return unless $self->contr->active;
1693		1985
1694	my $link_pos = delete $self->{_link_pos};	1986	my $link_pos = delete $self->{_link_pos};
1695		1987
1696	unless ($map) {	1988	unless ($map) {
1697	# restore original map position	1989	# restore original map position
…		…
1711	# use -1 or undef as default coordinates, not 0, 0	2003	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	2004	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	2005	if $x <=0 && $y <= 0;
1714		2006
1715	$map->load;	2007	$map->load;
		2008	$map->load_diag;
1716		2009
1717	return unless $self->contr->active;	2010	return unless $self->contr->active;
1718	$self->activate_recursive;	2011	$self->activate_recursive;
		2012
		2013	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1719	$self->enter_map ($map, $x, $y);	2014	$self->enter_map ($map, $x, $y);
1720	}	2015	}
1721		2016
1722	cf::player->attach (
1723	on_logout => sub {
1724	my ($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)	2017	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1755		2018
		2019	Moves the player to the given map-path and coordinates by first freezing
		2020	her, loading and preparing them map, calling the provided $check callback
		2021	that has to return the map if sucecssful, and then unfreezes the player on
		2022	the new (success) or old (failed) map position.
		2023
1756	=cut	2024	=cut
		2025
		2026	our $GOTOGEN;
1757		2027
1758	sub cf::object::player::goto {	2028	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	2029	my ($self, $path, $x, $y, $check) = @_;
1760		2030
1761	$path = new cf::path $path;	2031	# do generation counting so two concurrent goto's will be executed in-order
1762	$path ne "/" or Carp::cluck ("oy");#d#	2032	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		2033
1764	$self->enter_link;	2034	$self->enter_link;
1765		2035
1766	(async {	2036	(async {
		2037	my $map = eval {
1767	my $map = cf::map::find $path->as_string;	2038	my $map = cf::map::find $path;
		2039
		2040	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	2041	$map = $map->customise_for ($self);
1769		2042	$map = $check->($map) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	2043	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2044	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2045	}
1774		2046
		2047	$map
		2048	};
		2049
		2050	if ($@) {
		2051	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2052	LOG llevError | logBacktrace, Carp::longmess $@;
		2053	}
		2054
		2055	if ($gen == $self->{_goto_generation}) {
		2056	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	2057	$self->leave_link ($map, $x, $y);
		2058	}
1776	})->prio (1);	2059	})->prio (1);
1777	}	2060	}
1778		2061
1779	=item $player_object->enter_exit ($exit_object)	2062	=item $player_object->enter_exit ($exit_object)
1780		2063
…		…
1782		2065
1783	sub parse_random_map_params {	2066	sub parse_random_map_params {
1784	my ($spec) = @_;	2067	my ($spec) = @_;
1785		2068
1786	my $rmp = { # defaults	2069	my $rmp = { # defaults
1787	xsize => 10,	2070	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2071	ysize => (cf::rndm 15, 40),
		2072	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2073	#layout => string,
1789	};	2074	};
1790		2075
1791	for (split /\n/, $spec) {	2076	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2077	my ($k, $v) = split /\s+/, $_, 2;
1793		2078
…		…
1797	$rmp	2082	$rmp
1798	}	2083	}
1799		2084
1800	sub prepare_random_map {	2085	sub prepare_random_map {
1801	my ($exit) = @_;	2086	my ($exit) = @_;
		2087
		2088	my $guard = cf::lock_acquire "exit_prepare:$exit";
1802		2089
1803	# all this does is basically replace the /! path by	2090	# all this does is basically replace the /! path by
1804	# a new random map path (?random/...) with a seed	2091	# a new random map path (?random/...) with a seed
1805	# that depends on the exit object	2092	# that depends on the exit object
1806		2093
1807	my $rmp = parse_random_map_params $exit->msg;	2094	my $rmp = parse_random_map_params $exit->msg;
1808		2095
1809	if ($exit->map) {	2096	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2097	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2098	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2099	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2100	$rmp->{origin_y} = $exit->y;
1814	}	2101	}
1815		2102
1816	$rmp->{random_seed} ||= $exit->random_seed;	2103	$rmp->{random_seed} ||= $exit->random_seed;
1817		2104
1818	my $data = cf::to_json $rmp;	2105	my $data = cf::to_json $rmp;
1819	my $md5 = Digest::MD5::md5_hex $data;	2106	my $md5 = Digest::MD5::md5_hex $data;
		2107	my $meta = "$RANDOMDIR/$md5.meta";
1820		2108
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2109	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2110	aio_write $fh, 0, (length $data), $data, 0;
		2111	undef $fh;
		2112	aio_rename "$meta~", $meta;
1823		2113
1824	$exit->slaying ("?random/$md5");	2114	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2115	$exit->msg (undef);
1826	}	2116	}
1827	}	2117	}
1828		2118
1829	sub cf::object::player::enter_exit {	2119	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2120	my ($self, $exit) = @_;
1831		2121
1832	return unless $self->type == cf::PLAYER;	2122	return unless $self->type == cf::PLAYER;
		2123
		2124	if ($exit->slaying eq "/!") {
		2125	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2126	# the problem is that $exit might not survive long enough
		2127	# so it needs to be done right now, right here
		2128	cf::sync_job { prepare_random_map $exit };
		2129	}
		2130
		2131	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2132	my $hp = $exit->stats->hp;
		2133	my $sp = $exit->stats->sp;
1833		2134
1834	$self->enter_link;	2135	$self->enter_link;
1835		2136
1836	(async {	2137	(async {
1837	$self->deactivate_recursive; # just to be sure	2138	$self->deactivate_recursive; # just to be sure
1838	unless (eval {	2139	unless (eval {
1839	prepare_random_map $exit	2140	$self->goto ($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		2141
1845	1;	2142	1;
1846	}) {	2143	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2144	$self->message ("Something went wrong deep within the crossfire server. "
1848	. "I'll try to bring you back to the map you were before. "	2145	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2146	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2147	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2148
1852	warn "ERROR in enter_exit: $@";	2149	warn "ERROR in enter_exit: $@";
1853	$self->leave_link;	2150	$self->leave_link;
1854	}	2151	}
1855	})->prio (1);	2152	})->prio (1);
…		…
1868		2165
1869	sub cf::client::send_drawinfo {	2166	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2167	my ($self, $text, $flags) = @_;
1871		2168
1872	utf8::encode $text;	2169	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2170	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2171	}
1875		2172
		2173	=item $client->ext_event ($type, %msg)
		2174
		2175	Sends an exti event to the client.
		2176
		2177	=cut
		2178
		2179	sub cf::client::ext_event($$%) {
		2180	my ($self, $type, %msg) = @_;
		2181
		2182	$msg{msgtype} = "event_$type";
		2183	$self->send_packet ("ext " . cf::to_json \%msg);
		2184	}
1876		2185
1877	=item $success = $client->query ($flags, "text", \&cb)	2186	=item $success = $client->query ($flags, "text", \&cb)
1878		2187
1879	Queues a query to the client, calling the given callback with	2188	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>,	2189	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1909	# get handled first	2218	# get handled first
1910	my $queue = delete $ns->{query_queue}	2219	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	2220	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		2221
1913	(shift @$queue)->[1]->($msg);	2222	(shift @$queue)->[1]->($msg);
		2223	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		2224
1915	push @{ $ns->{query_queue} }, @$queue;	2225	push @{ $ns->{query_queue} }, @$queue;
1916		2226
1917	if (@{ $ns->{query_queue} } == @$queue) {	2227	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	2228	if (@$queue) {
…		…
1976		2286
1977	# here we export the classes and methods available to script code	2287	# here we export the classes and methods available to script code
1978		2288
1979	=pod	2289	=pod
1980		2290
1981	The following fucntions and emthods are available within a safe environment:	2291	The following functions and methods are available within a safe environment:
1982		2292
1983	cf::object contr pay_amount pay_player map	2293	cf::object contr pay_amount pay_player map
1984	cf::object::player player	2294	cf::object::player player
1985	cf::player peaceful	2295	cf::player peaceful
1986	cf::map trigger	2296	cf::map trigger
…		…
2071	#############################################################################	2381	#############################################################################
2072		2382
2073	=head2 EXTENSION DATABASE SUPPORT	2383	=head2 EXTENSION DATABASE SUPPORT
2074		2384
2075	Crossfire maintains a very simple database for extension use. It can	2385	Crossfire maintains a very simple database for extension use. It can
2076	currently store anything that can be serialised using Storable, which	2386	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2077	excludes objects.	2387	convert to/from binary).
2078		2388
2079	The parameter C<$family> should best start with the name of the extension	2389	The parameter C<$family> should best start with the name of the extension
2080	using it, it should be unique.	2390	using it, it should be unique.
2081		2391
2082	=over 4	2392	=over 4
2083		2393
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	2394	=item $value = cf::db_get $family => $key
2091		2395
2092	Returns a single value from the database	2396	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		2397
2099	=item cf::db_put $family => $key => $value	2398	=item cf::db_put $family => $key => $value
2100		2399
2101	Stores the given C<$value> in the family hash. Updates are delayed, if you	2400	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		2401
2112	=cut	2402	=cut
2113		2403
2114	our $DB;	2404	our $DB;
2115		2405
2116	{	2406	sub db_init {
2117	my $path = cf::localdir . "/database.pst";	2407	unless ($DB) {
		2408	$DB = BDB::db_create $DB_ENV;
2118		2409
2119	sub db_load() {	2410	cf::sync_job {
2120	$DB = stat $path ? Storable::retrieve $path : { };	2411	eval {
2121	}	2412	$DB->set_flags (BDB::CHKSUM);
2122		2413
2123	my $pid;	2414	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2124		2415	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2125	sub db_save() {	2416	cf::cleanup "db_open(db): $!" if $!;
2126	waitpid $pid, 0 if $pid;	2417	};
2127	if (0 == ($pid = fork)) {	2418	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	}	2419	};
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	});	2420	}
		2421	}
2145		2422
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}
2150
2151	sub db_get($;$) {	2423	sub db_get($$) {
2152	@_ >= 2	2424	my $key = "$_[0]/$_[1]";
2153	? $DB->{$_[0]}{$_[1]}
2154	: ($DB->{$_[0]} ||= { })
2155	}
2156		2425
		2426	cf::sync_job {
		2427	BDB::db_get $DB, undef, $key, my $data;
		2428
		2429	$! ? ()
		2430	: $data
		2431	}
		2432	}
		2433
2157	sub db_put($$;$) {	2434	sub db_put($$$) {
2158	if (@_ >= 3) {	2435	BDB::dbreq_pri 4;
2159	$DB->{$_[0]}{$_[1]} = $_[2];	2436	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2160	} else {	2437	}
2161	$DB->{$_[0]} = $_[1];
2162	}
2163	db_dirty;
2164	}
2165		2438
2166	cf::global->attach (	2439	=item cf::cache $id => [$paths...], $processversion => $process
2167	prio => 10000,	2440
2168	on_cleanup => sub {	2441	Generic caching function that returns the value of the resource $id,
2169	db_sync;	2442	caching and regenerating as required.
		2443
		2444	This function can block.
		2445
		2446	=cut
		2447
		2448	sub cache {
		2449	my ($id, $src, $processversion, $process) = @_;
		2450
		2451	my $meta =
		2452	join "\x00",
		2453	$processversion,
		2454	map {
		2455	aio_stat $_
		2456	and Carp::croak "$_: $!";
		2457
		2458	($_, (stat _)[7,9])
		2459	} @$src;
		2460
		2461	my $dbmeta = db_get cache => "$id/meta";
		2462	if ($dbmeta ne $meta) {
		2463	# changed, we may need to process
		2464
		2465	my @data;
		2466	my $md5;
		2467
		2468	for (0 .. $#$src) {
		2469	0 <= aio_load $src->[$_], $data[$_]
		2470	or Carp::croak "$src->[$_]: $!";
2170	},	2471	}
2171	);	2472
		2473	# if processing is expensive, check
		2474	# checksum first
		2475	if (1) {
		2476	$md5 =
		2477	join "\x00",
		2478	$processversion,
		2479	map {
		2480	Coro::cede;
		2481	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2482	} 0.. $#$src;
		2483
		2484
		2485	my $dbmd5 = db_get cache => "$id/md5";
		2486	if ($dbmd5 eq $md5) {
		2487	db_put cache => "$id/meta", $meta;
		2488
		2489	return db_get cache => "$id/data";
		2490	}
		2491	}
		2492
		2493	my $t1 = Time::HiRes::time;
		2494	my $data = $process->(\@data);
		2495	my $t2 = Time::HiRes::time;
		2496
		2497	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2498
		2499	db_put cache => "$id/data", $data;
		2500	db_put cache => "$id/md5" , $md5;
		2501	db_put cache => "$id/meta", $meta;
		2502
		2503	return $data;
		2504	}
		2505
		2506	db_get cache => "$id/data"
		2507	}
		2508
		2509	=item fork_call { }, $args
		2510
		2511	Executes the given code block with the given arguments in a seperate
		2512	process, returning the results. Everything must be serialisable with
		2513	Coro::Storable. May, of course, block. Note that the executed sub may
		2514	never block itself or use any form of Event handling.
		2515
		2516	=cut
		2517
		2518	sub fork_call(&@) {
		2519	my ($cb, @args) = @_;
		2520
		2521	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2522	# or die "socketpair: $!";
		2523	pipe my $fh1, my $fh2
		2524	or die "pipe: $!";
		2525
		2526	if (my $pid = fork) {
		2527	close $fh2;
		2528
		2529	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2530	$res = Coro::Storable::thaw $res;
		2531
		2532	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2533
		2534	die $$res unless "ARRAY" eq ref $res;
		2535
		2536	return wantarray ? @$res : $res->[-1];
		2537	} else {
		2538	reset_signals;
		2539	local $SIG{__WARN__};
		2540	local $SIG{__DIE__};
		2541	eval {
		2542	close $fh1;
		2543
		2544	my @res = eval { $cb->(@args) };
		2545	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2546	};
		2547
		2548	warn $@ if $@;
		2549	_exit 0;
		2550	}
2172	}	2551	}
2173		2552
2174	#############################################################################	2553	#############################################################################
2175	# the server's main()	2554	# the server's init and main functions
		2555
		2556	sub load_facedata($) {
		2557	my ($path) = @_;
		2558
		2559	warn "loading facedata from $path\n";
		2560
		2561	my $facedata;
		2562	0 < aio_load $path, $facedata
		2563	or die "$path: $!";
		2564
		2565	$facedata = Coro::Storable::thaw $facedata;
		2566
		2567	$facedata->{version} == 2
		2568	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2569
		2570	{
		2571	my $faces = $facedata->{faceinfo};
		2572
		2573	while (my ($face, $info) = each %$faces) {
		2574	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2575	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2576	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2577	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2578	Coro::cede;
		2579	}
		2580
		2581	while (my ($face, $info) = each %$faces) {
		2582	next unless $info->{smooth};
		2583	my $idx = cf::face::find $face
		2584	or next;
		2585	if (my $smooth = cf::face::find $info->{smooth}) {
		2586	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2587	} else {
		2588	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2589	}
		2590	Coro::cede;
		2591	}
		2592	}
		2593
		2594	{
		2595	my $anims = $facedata->{animinfo};
		2596
		2597	while (my ($anim, $info) = each %$anims) {
		2598	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2599	Coro::cede;
		2600	}
		2601
		2602	cf::anim::invalidate_all; # d'oh
		2603	}
		2604
		2605	1
		2606	}
		2607
		2608	sub reload_regions {
		2609	load_resource_file "$MAPDIR/regions"
		2610	or die "unable to load regions file\n";
		2611	}
		2612
		2613	sub reload_facedata {
		2614	load_facedata "$DATADIR/facedata"
		2615	or die "unable to load facedata\n";
		2616	}
		2617
		2618	sub reload_archetypes {
		2619	load_resource_file "$DATADIR/archetypes"
		2620	or die "unable to load archetypes\n";
		2621	}
		2622
		2623	sub reload_treasures {
		2624	load_resource_file "$DATADIR/treasures"
		2625	or die "unable to load treasurelists\n";
		2626	}
		2627
		2628	sub reload_resources {
		2629	warn "reloading resource files...\n";
		2630
		2631	reload_regions;
		2632	reload_facedata;
		2633	#reload_archetypes;#d#
		2634	reload_archetypes;
		2635	reload_treasures;
		2636
		2637	warn "finished reloading resource files\n";
		2638	}
		2639
		2640	sub init {
		2641	reload_resources;
		2642	}
2176		2643
2177	sub cfg_load {	2644	sub cfg_load {
2178	open my $fh, "<:utf8", cf::confdir . "/config"	2645	open my $fh, "<:utf8", "$CONFDIR/config"
2179	or return;	2646	or return;
2180		2647
2181	local $/;	2648	local $/;
2182	*CFG = YAML::Syck::Load <$fh>;	2649	*CFG = YAML::Syck::Load <$fh>;
2183		2650
…		…
2197		2664
2198	sub main {	2665	sub main {
2199	# we must not ever block the main coroutine	2666	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	2667	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2668	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2669	(async {
2202	async { Event::one_event };	2670	Event::one_event;
		2671	})->prio (Coro::PRIO_MAX);
2203	};	2672	};
2204		2673
2205	cfg_load;	2674	cfg_load;
2206	db_load;	2675	db_init;
2207	load_extensions;	2676	load_extensions;
		2677
		2678	$TICK_WATCHER->start;
2208	Event::loop;	2679	Event::loop;
2209	}	2680	}
2210		2681
2211	#############################################################################	2682	#############################################################################
2212	# initialisation	2683	# initialisation and cleanup
2213		2684
		2685	# install some emergency cleanup handlers
		2686	BEGIN {
		2687	for my $signal (qw(INT HUP TERM)) {
		2688	Event->signal (
		2689	reentrant => 0,
		2690	data => WF_AUTOCANCEL,
		2691	signal => $signal,
		2692	prio => 0,
		2693	cb => sub {
		2694	cf::cleanup "SIG$signal";
		2695	},
		2696	);
		2697	}
		2698	}
		2699
		2700	sub emergency_save() {
		2701	my $freeze_guard = cf::freeze_mainloop;
		2702
		2703	warn "enter emergency perl save\n";
		2704
		2705	cf::sync_job {
		2706	# use a peculiar iteration method to avoid tripping on perl
		2707	# refcount bugs in for. also avoids problems with players
		2708	# and maps saved/destroyed asynchronously.
		2709	warn "begin emergency player save\n";
		2710	for my $login (keys %cf::PLAYER) {
		2711	my $pl = $cf::PLAYER{$login} or next;
		2712	$pl->valid or next;
		2713	$pl->save;
		2714	}
		2715	warn "end emergency player save\n";
		2716
		2717	warn "begin emergency map save\n";
		2718	for my $path (keys %cf::MAP) {
		2719	my $map = $cf::MAP{$path} or next;
		2720	$map->valid or next;
		2721	$map->save;
		2722	}
		2723	warn "end emergency map save\n";
		2724
		2725	warn "begin emergency database checkpoint\n";
		2726	BDB::db_env_txn_checkpoint $DB_ENV;
		2727	warn "end emergency database checkpoint\n";
		2728	};
		2729
		2730	warn "leave emergency perl save\n";
		2731	}
		2732
		2733	sub post_cleanup {
		2734	my ($make_core) = @_;
		2735
		2736	warn Carp::longmess "post_cleanup backtrace"
		2737	if $make_core;
		2738	}
		2739
2214	sub reload() {	2740	sub do_reload_perl() {
2215	# can/must only be called in main	2741	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	2742	if ($Coro::current != $Coro::main) {
2217	warn "can only reload from main coroutine\n";	2743	warn "can only reload from main coroutine";
2218	return;	2744	return;
2219	}	2745	}
2220		2746
2221	warn "reloading...";	2747	warn "reloading...";
2222		2748
2223	my $guard = freeze_mainloop;	2749	warn "entering sync_job";
		2750
		2751	cf::sync_job {
		2752	cf::write_runtime; # external watchdog should not bark
2224	cf::emergency_save;	2753	cf::emergency_save;
		2754	cf::write_runtime; # external watchdog should not bark
2225		2755
2226	eval {	2756	warn "syncing database to disk";
		2757	BDB::db_env_txn_checkpoint $DB_ENV;
		2758
2227	# if anything goes wrong in here, we should simply crash as we already saved	2759	# if anything goes wrong in here, we should simply crash as we already saved
2228		2760
2229	# cancel all watchers	2761	warn "cancelling all WF_AUTOCANCEL watchers";
2230	for (Event::all_watchers) {	2762	for (Event::all_watchers) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;	2763	$_->cancel if $_->data & WF_AUTOCANCEL;
2232	}	2764	}
2233		2765
		2766	warn "flushing outstanding aio requests";
		2767	for (;;) {
		2768	BDB::flush;
		2769	IO::AIO::flush;
		2770	Coro::cede;
		2771	last unless IO::AIO::nreqs || BDB::nreqs;
		2772	warn "iterate...";
		2773	}
		2774
		2775	++$RELOAD;
		2776
2234	# cancel all extension coros	2777	warn "cancelling all extension coros";
2235	$_->cancel for values %EXT_CORO;	2778	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	2779	%EXT_CORO = ();
2237		2780
2238	# unload all extensions	2781	warn "removing commands";
2239	for (@exts) {	2782	%COMMAND = ();
		2783
		2784	warn "removing ext commands";
		2785	%EXTCMD = ();
		2786
		2787	warn "unloading/nuking all extensions";
		2788	for my $pkg (@EXTS) {
2240	warn "unloading <$_>";	2789	warn "... unloading $pkg";
2241	unload_extension $_;	2790
		2791	if (my $cb = $pkg->can ("unload")) {
		2792	eval {
		2793	$cb->($pkg);
		2794	1
		2795	} or warn "$pkg unloaded, but with errors: $@";
2242	}	2796	}
2243		2797
		2798	warn "... nuking $pkg";
		2799	Symbol::delete_package $pkg;
		2800	}
		2801
2244	# unload all modules loaded from $LIBDIR	2802	warn "unloading all perl modules loaded from $LIBDIR";
2245	while (my ($k, $v) = each %INC) {	2803	while (my ($k, $v) = each %INC) {
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2804	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2247		2805
2248	warn "removing <$k>";	2806	warn "... unloading $k";
2249	delete $INC{$k};	2807	delete $INC{$k};
2250		2808
2251	$k =~ s/\.pm$//;	2809	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;	2810	$k =~ s/\//::/g;
2253		2811
…		…
2256	}	2814	}
2257		2815
2258	Symbol::delete_package $k;	2816	Symbol::delete_package $k;
2259	}	2817	}
2260		2818
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	2819	warn "getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	2820	Symbol::delete_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2821	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		2822
2269	# remove register_script_function callbacks
2270	# TODO
2271
2272	# unload cf.pm "a bit"	2823	warn "unloading cf.pm \"a bit\"";
2273	delete $INC{"cf.pm"};	2824	delete $INC{"cf.pm"};
		2825	delete $INC{"cf/pod.pm"};
2274		2826
2275	# don't, removes xs symbols, too,	2827	# don't, removes xs symbols, too,
2276	# and global variables created in xs	2828	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	2829	#Symbol::delete_package __PACKAGE__;
2278		2830
2279	# reload cf.pm	2831	warn "unload completed, starting to reload now";
		2832
2280	warn "reloading cf.pm";	2833	warn "reloading cf.pm";
2281	require cf;	2834	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2835	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2283		2836
2284	# load config and database again	2837	warn "loading config and database again";
2285	cf::cfg_load;	2838	cf::cfg_load;
2286	cf::db_load;
2287		2839
2288	# load extensions
2289	warn "load extensions";	2840	warn "loading extensions";
2290	cf::load_extensions;	2841	cf::load_extensions;
2291		2842
2292	# reattach attachments to objects	2843	warn "reattaching attachments to objects/players";
2293	warn "reattach";	2844	_global_reattach; # objects, sockets
2294	_global_reattach;	2845	warn "reattaching attachments to maps";
2295	reattach $_ for values %MAP;	2846	reattach $_ for values %MAP;
2296	};	2847	warn "reattaching attachments to players";
		2848	reattach $_ for values %PLAYER;
2297		2849
2298	if ($@) {	2850	warn "leaving sync_job";
		2851
		2852	1
		2853	} or do {
2299	warn $@;	2854	warn $@;
2300	warn "error while reloading, exiting.";	2855	warn "error while reloading, exiting.";
2301	exit 1;	2856	exit 1;
2302	}	2857	};
2303		2858
2304	warn "reloaded successfully";	2859	warn "reloaded";
2305	};	2860	};
2306		2861
2307	#############################################################################	2862	our $RELOAD_WATCHER; # used only during reload
2308		2863
2309	unless ($LINK_MAP) {	2864	sub reload_perl() {
2310	$LINK_MAP = cf::map::new;	2865	# doing reload synchronously and two reloads happen back-to-back,
		2866	# coro crashes during coro_state_free->destroy here.
2311		2867
2312	$LINK_MAP->width (41);	2868	$RELOAD_WATCHER ||= Event->timer (
2313	$LINK_MAP->height (41);	2869	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,	2870	after => 0,
		2871	data => WF_AUTOCANCEL,
2322	cb => sub {	2872	cb => sub {
2323	$_[0]->w->cancel;	2873	do_reload_perl;
2324		2874	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	});	2875	},
2343		2876	);
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	2877	}
2349
2350	register "<global>", __PACKAGE__;
2351		2878
2352	register_command "reload" => sub {	2879	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	2880	my ($who, $arg) = @_;
2354		2881
2355	if ($who->flag (FLAG_WIZ)) {	2882	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	2883	$who->message ("reloading server.");
		2884	async { reload_perl };
2359	}	2885	}
2360	};	2886	};
2361		2887
2362	unshift @INC, $LIBDIR;	2888	unshift @INC, $LIBDIR;
2363		2889
		2890	my $bug_warning = 0;
		2891
		2892	our @WAIT_FOR_TICK;
		2893	our @WAIT_FOR_TICK_BEGIN;
		2894
		2895	sub wait_for_tick {
		2896	return unless $TICK_WATCHER->is_active;
		2897	return if $Coro::current == $Coro::main;
		2898
		2899	my $signal = new Coro::Signal;
		2900	push @WAIT_FOR_TICK, $signal;
		2901	$signal->wait;
		2902	}
		2903
		2904	sub wait_for_tick_begin {
		2905	return unless $TICK_WATCHER->is_active;
		2906	return if $Coro::current == $Coro::main;
		2907
		2908	my $signal = new Coro::Signal;
		2909	push @WAIT_FOR_TICK_BEGIN, $signal;
		2910	$signal->wait;
		2911	}
		2912
		2913	my $min = 1e6;#d#
		2914	my $avg = 10;
2364	$TICK_WATCHER = Event->timer (	2915	$TICK_WATCHER = Event->timer (
2365	reentrant => 0,	2916	reentrant => 0,
		2917	parked => 1,
2366	prio => 0,	2918	prio => 0,
2367	at => $NEXT_TICK || $TICK,	2919	at => $NEXT_TICK || $TICK,
2368	data => WF_AUTOCANCEL,	2920	data => WF_AUTOCANCEL,
2369	cb => sub {	2921	cb => sub {
		2922	if ($Coro::current != $Coro::main) {
		2923	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2924	unless ++$bug_warning > 10;
		2925	return;
		2926	}
		2927
		2928	$NOW = $tick_start = Event::time;
		2929
2370	cf::server_tick; # one server iteration	2930	cf::server_tick; # one server iteration
		2931
		2932	0 && sync_job {#d#
		2933	for(1..10) {
		2934	my $t = Event::time;
		2935	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2936	or die;
		2937
		2938	$map->width (50);
		2939	$map->height (50);
		2940	$map->alloc;
		2941	$map->_load_objects ("/tmp/x.map", 1);
		2942	my $t = Event::time - $t;
		2943
		2944	#next unless $t < 0.0013;#d#
		2945	if ($t < $min) {
		2946	$min = $t;
		2947	}
		2948	$avg = $avg * 0.99 + $t * 0.01;
		2949	}
		2950	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2951	exit 0;
		2952	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2953	};
		2954
2371	$RUNTIME += $TICK;	2955	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;	2956	$NEXT_TICK += $TICK;
2373		2957
		2958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2959	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2960	Coro::async_pool {
		2961	write_runtime
		2962	or warn "ERROR: unable to write runtime file: $!";
		2963	};
		2964	}
		2965
		2966	# my $AFTER = Event::time;
		2967	# warn $AFTER - $NOW;#d#
		2968
		2969	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2970	$sig->send;
		2971	}
		2972	while (my $sig = shift @WAIT_FOR_TICK) {
		2973	$sig->send;
		2974	}
		2975
		2976	$NOW = Event::time;
		2977
2374	# if we are delayed by four ticks or more, skip them all	2978	# if we are delayed by four ticks or more, skip them all
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2979	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2376		2980
2377	$TICK_WATCHER->at ($NEXT_TICK);	2981	$TICK_WATCHER->at ($NEXT_TICK);
2378	$TICK_WATCHER->start;	2982	$TICK_WATCHER->start;
		2983
		2984	$LOAD = ($NOW - $tick_start) / $TICK;
		2985	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2986
		2987	_post_tick;
		2988
		2989
2379	},	2990	},
2380	);	2991	);
2381		2992
		2993	{
2382	IO::AIO::max_poll_time $TICK * 0.2;	2994	BDB::max_poll_time $TICK * 0.1;
2383		2995	$BDB_POLL_WATCHER = Event->io (
2384	Event->io (	2996	reentrant => 0,
2385	fd => IO::AIO::poll_fileno,	2997	fd => BDB::poll_fileno,
2386	poll => 'r',	2998	poll => 'r',
2387	prio => 5,	2999	prio => 0,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391
2392	Event->timer (
2393	data => WF_AUTOCANCEL,	3000	data => WF_AUTOCANCEL,
2394	after => 0,	3001	cb => \&BDB::poll_cb,
2395	interval => 10,	3002	);
2396	cb => sub {	3003	BDB::min_parallel 8;
2397	(Coro::unblock_sub {	3004
2398	write_runtime	3005	BDB::set_sync_prepare {
2399	or warn "ERROR: unable to write runtime file: $!";	3006	my $status;
		3007	my $current = $Coro::current;
		3008	(
		3009	sub {
		3010	$status = $!;
		3011	$current->ready; undef $current;
		3012	},
		3013	sub {
		3014	Coro::schedule while defined $current;
		3015	$! = $status;
		3016	},
		3017	)
		3018	};
		3019
		3020	unless ($DB_ENV) {
		3021	$DB_ENV = BDB::db_env_create;
		3022
		3023	cf::sync_job {
		3024	eval {
		3025	BDB::db_env_open
		3026	$DB_ENV,
		3027	$BDBDIR,
		3028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3030	0666;
		3031
		3032	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3033
		3034	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3035	$DB_ENV->set_lk_detect;
		3036	};
		3037
		3038	cf::cleanup "db_env_open(db): $@" if $@;
2400	})->();	3039	};
2401	},	3040	}
2402	);	3041	}
		3042
		3043	{
		3044	IO::AIO::min_parallel 8;
		3045
		3046	undef $Coro::AIO::WATCHER;
		3047	IO::AIO::max_poll_time $TICK * 0.1;
		3048	$AIO_POLL_WATCHER = Event->io (
		3049	reentrant => 0,
		3050	data => WF_AUTOCANCEL,
		3051	fd => IO::AIO::poll_fileno,
		3052	poll => 'r',
		3053	prio => 6,
		3054	cb => \&IO::AIO::poll_cb,
		3055	);
		3056	}
		3057
		3058	my $_log_backtrace;
		3059
		3060	sub _log_backtrace {
		3061	my ($msg, @addr) = @_;
		3062
		3063	$msg =~ s/\n//;
		3064
		3065	# limit the # of concurrent backtraces
		3066	if ($_log_backtrace < 2) {
		3067	++$_log_backtrace;
		3068	async {
		3069	my @bt = fork_call {
		3070	@addr = map { sprintf "%x", $_ } @addr;
		3071	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3072	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3073	or die "addr2line: $!";
		3074
		3075	my @funcs;
		3076	my @res = <$fh>;
		3077	chomp for @res;
		3078	while (@res) {
		3079	my ($func, $line) = splice @res, 0, 2, ();
		3080	push @funcs, "[$func] $line";
		3081	}
		3082
		3083	@funcs
		3084	};
		3085
		3086	LOG llevInfo, "[ABT] $msg\n";
		3087	LOG llevInfo, "[ABT] $_\n" for @bt;
		3088	--$_log_backtrace;
		3089	};
		3090	} else {
		3091	LOG llevInfo, "[ABT] $msg\n";
		3092	LOG llevInfo, "[ABT] [suppressed]\n";
		3093	}
		3094	}
		3095
		3096	# load additional modules
		3097	use cf::pod;
2403		3098
2404	END { cf::emergency_save }	3099	END { cf::emergency_save }
2405		3100
2406	1	3101	1
2407		3102

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