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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.141 by root, Fri Jan 5 20:08:53 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 ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (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
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	91
55	our %EXT_CORO;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		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 $tick_start; # for load detecting purposes
56		98
57	binmode STDOUT;	99	binmode STDOUT;
58	binmode STDERR;	100	binmode STDERR;
59		101
60	# read virtual server time, if available	102	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
65	}	107	}
66		108
67	mkdir cf::localdir;	109	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		111
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
76		115
77	#############################################################################	116	#############################################################################
78		117
79	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
80		119
…		…
87	=item $cf::RUNTIME	126	=item $cf::RUNTIME
88		127
89	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
90	every server tick.	129	every server tick.
91		130
92	=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
93		134
94	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		139
97	=item $cf::NOW	140	=item $cf::NOW
98		141
99	The time of the last (current) server tick.	142	The time of the last (current) server tick.
100		143
101	=item $cf::TICK	144	=item $cf::TICK
102		145
103	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.
104		157
105	=item %cf::CFG	158	=item %cf::CFG
106		159
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		168
110	=back	169	=back
111		170
112	=cut	171	=cut
113		172
114	BEGIN {	173	BEGIN {
115	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	175	my $msg = join "", @_;
117	utf8::encode $msg;
118		176
119	$msg .= "\n"	177	$msg .= "\n"
120	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
121		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
123	};	184	};
124	}	185	}
125		186
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		194
133	# 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
134	# within the Safe compartment.	196	# within the Safe compartment.
135	for my $pkg (qw(	197	for my $pkg (qw(
136	cf::global cf::attachable	198	cf::global cf::attachable
…		…
145		207
146	$Event::DIED = sub {	208	$Event::DIED = sub {
147	warn "error in event callback: @_";	209	warn "error in event callback: @_";
148	};	210	};
149		211
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
155		213
156	=over 4	214	=over 4
157		215
158	=cut	216	=item dumpval $ref
159		217
		218	=cut
		219
		220	sub dumpval {
		221	eval {
		222	local $SIG{__DIE__};
		223	my $d;
		224	if (1) {
		225	$d = new Data::Dumper([$_[0]], ["*var"]);
		226	$d->Terse(1);
		227	$d->Indent(2);
		228	$d->Quotekeys(0);
		229	$d->Useqq(1);
		230	#$d->Bless(...);
		231	$d->Seen($_[1]) if @_ > 1;
		232	$d = $d->Dump();
		233	}
		234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		235	$d
		236	} || "[unable to dump $_[0]: '$@']";
		237	}
		238
160	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
161		240
162	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
163		242
164	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
165		244
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
174		246
175	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
176
177	=cut
178
179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		248
184	=item cf::lock_wait $string	249	=item cf::lock_wait $string
185		250
186	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
187		252
…		…
193	returned.	258	returned.
194		259
195	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
196	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
197		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
198	=cut	267	=cut
199		268
200	our %LOCK;	269	our %LOCK;
201		270
202	sub lock_wait($) {	271	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
223	}	292	}
224	}	293	}
225		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
226	sub freeze_mainloop {	301	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
228		303
229	my $guard = Coro::guard { $TICK_WATCHER->start };	304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
230	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
231	$guard	308	$guard
232	}	309	}
233		310
234	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
256		333
257	sub sync_job(&) {	334	sub sync_job(&) {
258	my ($job) = @_;	335	my ($job) = @_;
259		336
260	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
261	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
263		342
264	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
265	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
276		355
277	while ($busy) {	356	while ($busy) {
278	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
279	}	358	}
280		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
281	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
282	} else {	368	} else {
283	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
284		370
285	$job->()	371	$job->()
286	}	372	}
287	}	373	}
288		374
289	=item $coro = cf::async_ext { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
290		376
291	Like async, but this coro is automcatially being canceled when the	377	Like async, but this coro is automatically being canceled when the
292	extension calling this is being unloaded.	378	extension calling this is being unloaded.
293		379
294	=cut	380	=cut
295		381
296	sub async_ext(&) {	382	sub async_ext(&) {
…		…
305		391
306	$coro	392	$coro
307	}	393	}
308		394
309	sub write_runtime {	395	sub write_runtime {
310	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";
311		404
312	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
313	or return;	406	or return;
314		407
		408	my $value = $cf::RUNTIME + 90 + 10;
315	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
316	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
317	and return;	413	and return;
318		414
		415	# always fsync - this file is important
319	aio_fsync $fh	416	aio_fsync $fh
320	and return;	417	and return;
321		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
322	close $fh	422	close $fh
323	or return;	423	or return;
324		424
325	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
326	and return;	426	and return;
327		427
		428	warn "runtime file written.\n";
		429
328	1	430	1
329	}	431	}
330		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
331	=back	444	=back
332		445
333	=cut	446	=cut
334
335	#############################################################################
336
337	package cf::path;
338
339	sub new {
340	my ($class, $path, $base) = @_;
341
342	$path = $path->as_string if ref $path;
343
344	my $self = bless { }, $class;
345
346	# {... are special paths that are not touched
347	# ?xxx/... are special absolute paths
348	# ?random/... random maps
349	# /! non-realised random map exit
350	# /... normal maps
351	# ~/... per-player maps without a specific player (DO NOT USE)
352	# ~user/... per-player map of a specific user
353
354	if ($path =~ /^{/) {
355	# fine as it is
356	} elsif ($path =~ s{^\?random/}{}) {
357	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
358	$self->{random} = cf::from_json $data;
359	} else {
360	if ($path =~ s{^~([^/]+)?}{}) {
361	$self->{user_rel} = 1;
362
363	if (defined $1) {
364	$self->{user} = $1;
365	} elsif ($base =~ m{^~([^/]+)/}) {
366	$self->{user} = $1;
367	} else {
368	warn "cannot resolve user-relative path without user <$path,$base>\n";
369	}
370	} elsif ($path =~ /^\//) {
371	# already absolute
372	} else {
373	$base =~ s{[^/]+/?$}{};
374	return $class->new ("$base/$path");
375	}
376
377	for ($path) {
378	redo if s{/\.?/}{/};
379	redo if s{/[^/]+/\.\./}{/};
380	}
381	}
382
383	$self->{path} = $path;
384
385	$self
386	}
387
388	# the name / primary key / in-game path
389	sub as_string {
390	my ($self) = @_;
391
392	$self->{user_rel} ? "~$self->{user}$self->{path}"
393	: $self->{random} ? "?random/$self->{path}"
394	: $self->{path}
395	}
396
397	# the displayed name, this is a one way mapping
398	sub visible_name {
399	my ($self) = @_;
400
401	# if (my $rmp = $self->{random}) {
402	# # todo: be more intelligent about this
403	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
404	# } else {
405	$self->as_string
406	# }
407	}
408
409	# escape the /'s in the path
410	sub _escaped_path {
411	# ∕ is U+2215
412	(my $path = $_[0]{path}) =~ s/\//∕/g;
413	$path
414	}
415
416	# the original (read-only) location
417	sub load_path {
418	my ($self) = @_;
419
420	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
421	}
422
423	# the temporary/swap location
424	sub save_path {
425	my ($self) = @_;
426
427	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
428	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
429	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
430	}
431
432	# the unique path, might be eq to save_path
433	sub uniq_path {
434	my ($self) = @_;
435
436	$self->{user_rel} || $self->{random}
437	? undef
438	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
439	}
440
441	# return random map parameters, or undef
442	sub random_map_params {
443	my ($self) = @_;
444
445	$self->{random}
446	}
447
448	# this is somewhat ugly, but style maps do need special treatment
449	sub is_style_map {
450	$_[0]{path} =~ m{^/styles/}
451	}
452
453	package cf;
454		447
455	#############################################################################	448	#############################################################################
456		449
457	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
458		451
…		…
584	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
585	our @CB_MAP = ();	578	our @CB_MAP = ();
586		579
587	my %attachment;	580	my %attachment;
588		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
589	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
590	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
591		590
592	use sort 'stable';	591	use sort 'stable';
593		592
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
628		627
629	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		632
634	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	634	my $pkg = shift @arg;
636		635
637	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
678	if (ref $_[0]) {	677	if (ref $_[0]) {
679	_object_attach @_;	678	_object_attach @_;
680	} else {	679	} else {
681	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
682	}	681	}
		682	_recalc_want;
683	};	683	};
684		684
685	# all those should be optimised	685	# all those should be optimised
686	sub cf::attachable::detach {	686	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
691	reattach ($obj);	691	reattach ($obj);
692	} else {	692	} else {
693	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
694	}	694	}
		695	_recalc_want;
695	};	696	};
696		697
697	sub cf::attachable::attached {	698	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
699		700
…		…
764	# object support	765	# object support
765		766
766	sub reattach {	767	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
769		772
770	my $registry = $obj->registry;	773	my $registry = $obj->registry;
771		774
772	@$registry = ();	775	@$registry = ();
773		776
…		…
820	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
821		824
822	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
824	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
825	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
826	close $fh;	829	close $fh;
827		830
828	if (@$objs) {	831	if (@$objs) {
829	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) {
830	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
831	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
832	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
833	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
834	close $fh;	837	close $fh;
835	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
836	}	839	}
837	} else {	840	} else {
838	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
870	or return;	873	or return;
871	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
872	}	875	}
873		876
874	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
875	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
876	return ($data, $av);	879	return ($data, $av);
877	}	880	}
878		881
879	#############################################################################	882	#############################################################################
880	# command handling &c	883	# command handling &c
…		…
905	=cut	908	=cut
906		909
907	sub register_extcmd {	910	sub register_extcmd {
908	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
909		912
910	my $caller = caller;
911	#warn "registering extcmd '$name' to '$caller'";
912
913	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
914	}	914	}
915		915
916	cf::player->attach (	916	cf::player->attach (
917	on_command => sub {	917	on_command => sub {
918	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
931		931
932	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
933		933
934	if (ref $msg) {	934	if (ref $msg) {
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
936	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
937	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}	938	}
939	}	939	}
940	} else {	940	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
943		943
944	cf::override;	944	cf::override;
945	},	945	},
946	);	946	);
947		947
948	sub register {
949	my ($base, $pkg) = @_;
950
951	#TODO
952	}
953
954	sub load_extension {	948	sub load_extensions {
		949	cf::sync_job {
		950	my %todo;
		951
		952	for my $path (<$LIBDIR/*.ext>) {
		953	next unless -r $path;
		954
		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};
		1011	}
		1012
		1013	skip:
		1014	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1015	unless $progress;
		1016	}
		1017	};
		1018	}
		1019
		1020	#############################################################################
		1021
		1022	=head2 CORE EXTENSIONS
		1023
		1024	Functions and methods that extend core crossfire objects.
		1025
		1026	=cut
		1027
		1028	package cf::player;
		1029
		1030	use Coro::AIO;
		1031
		1032	=head3 cf::player
		1033
		1034	=over 4
		1035
		1036	=item cf::player::find $login
		1037
		1038	Returns the given player object, loading it if necessary (might block).
		1039
		1040	=cut
		1041
		1042	sub playerdir($) {
		1043	"$PLAYERDIR/"
		1044	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1045	}
		1046
		1047	sub path($) {
		1048	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1049
		1050	(playerdir $login) . "/playerdata"
		1051	}
		1052
		1053	sub find_active($) {
		1054	$cf::PLAYER{$_[0]}
		1055	and $cf::PLAYER{$_[0]}->active
		1056	and $cf::PLAYER{$_[0]}
		1057	}
		1058
		1059	sub exists($) {
		1060	my ($login) = @_;
		1061
		1062	$cf::PLAYER{$login}
		1063	or cf::sync_job { !aio_stat path $login }
		1064	}
		1065
		1066	sub find($) {
		1067	return $cf::PLAYER{$_[0]} || do {
		1068	my $login = $_[0];
		1069
		1070	my $guard = cf::lock_acquire "user_find:$login";
		1071
		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
		1080	my $pl = load_pl path $login
		1081	or return;
		1082	$cf::PLAYER{$login} = $pl
		1083	}
		1084	}
		1085	}
		1086
		1087	sub save($) {
		1088	my ($pl) = @_;
		1089
		1090	return if $pl->{deny_save};
		1091
		1092	my $path = path $pl;
		1093	my $guard = cf::lock_acquire "user_save:$path";
		1094
		1095	return if $pl->{deny_save};
		1096
		1097	aio_mkdir playerdir $pl, 0770;
		1098	$pl->{last_save} = $cf::RUNTIME;
		1099
		1100	$pl->save_pl ($path);
		1101	Coro::cede;
		1102	}
		1103
		1104	sub new($) {
		1105	my ($login) = @_;
		1106
		1107	my $self = create;
		1108
		1109	$self->ob->name ($login);
		1110	$self->{deny_save} = 1;
		1111
		1112	$cf::PLAYER{$login} = $self;
		1113
		1114	$self
		1115	}
		1116
		1117	=item $pl->quit_character
		1118
		1119	Nukes the player without looking back. If logged in, the connection will
		1120	be destroyed. May block for a long time.
		1121
		1122	=cut
		1123
		1124	sub quit_character {
		1125	my ($pl) = @_;
		1126
		1127	my $name = $pl->ob->name;
		1128
		1129	$pl->{deny_save} = 1;
		1130	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1133	$pl->deactivate;
		1134	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1135	$pl->ns->destroy if $pl->ns;
		1136
		1137	my $path = playerdir $pl;
		1138	my $temp = "$path~$cf::RUNTIME~deleting~";
		1139	aio_rename $path, $temp;
		1140	delete $cf::PLAYER{$pl->ob->name};
		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
		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;
		1163	}
		1164
		1165	=item cf::player::list_logins
		1166
		1167	Returns am arrayref of all valid playernames in the system, can take a
		1168	while and may block, so not sync_job-capable, ever.
		1169
		1170	=cut
		1171
		1172	sub list_logins {
		1173	my $dirs = aio_readdir $PLAYERDIR
		1174	or return [];
		1175
		1176	my @logins;
		1177
		1178	for my $login (@$dirs) {
		1179	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1180	aio_read $fh, 0, 512, my $buf, 0 or next;
		1181	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1182
		1183	utf8::decode $login;
		1184	push @logins, $login;
		1185	}
		1186
		1187	\@logins
		1188	}
		1189
		1190	=item $player->maps
		1191
		1192	Returns an arrayref of map paths that are private for this
		1193	player. May block.
		1194
		1195	=cut
		1196
		1197	sub maps($) {
		1198	my ($pl) = @_;
		1199
		1200	$pl = ref $pl ? $pl->ob->name : $pl;
		1201
		1202	my $files = aio_readdir playerdir $pl
		1203	or return;
		1204
		1205	my @paths;
		1206
		1207	for (@$files) {
		1208	utf8::decode $_;
		1209	next if /\.(?:pl|pst)$/;
		1210	next unless /^$PATH_SEP/o;
		1211
		1212	push @paths, cf::map::normalise "~$pl/$_";
		1213	}
		1214
		1215	\@paths
		1216	}
		1217
		1218	=item $player->ext_reply ($msgid, %msg)
		1219
		1220	Sends an ext reply to the player.
		1221
		1222	=cut
		1223
		1224	sub ext_reply($$%) {
		1225	my ($self, $id, %msg) = @_;
		1226
		1227	$msg{msgid} = $id;
		1228
		1229	$self->send ("ext " . cf::to_json \%msg);
		1230	}
		1231
		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($) {
955	my ($path) = @_;	1259	my ($path) = @_;
956		1260
957	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1261	my ($match, $specificity);
958	my $base = $1;
959	my $pkg = $1;
960	$pkg =~ s/[^[:word:]]/_/g;
961	$pkg = "ext::$pkg";
962		1262
963	warn "loading '$path' into '$pkg'\n";	1263	for my $region (list) {
964		1264	if ($region->match && $path =~ $region->match) {
965	open my $fh, "<:utf8", $path	1265	($match, $specificity) = ($region, $region->specificity)
966	or die "$path: $!";	1266	if $region->specificity > $specificity;
967		1267	}
968	my $source =
969	"package $pkg; use strict; use utf8;\n"
970	. "#line 1 \"$path\"\n{\n"
971	. (do { local $/; <$fh> })
972	. "\n};\n1";
973
974	eval $source
975	or die $@ ? "$path: $@\n"
976	: "extension disabled.\n";
977
978	push @exts, $pkg;
979	$ext_pkg{$base} = $pkg;
980
981	# no strict 'refs';
982	# @{"$pkg\::ISA"} = ext::;
983
984	register $base, $pkg;
985	}
986
987	sub unload_extension {
988	my ($pkg) = @_;
989
990	warn "removing extension $pkg\n";
991
992	# remove hooks
993	#TODO
994	# for my $idx (0 .. $#PLUGIN_EVENT) {
995	# delete $hook[$idx]{$pkg};
996	# }	1268	}
997		1269
998	# remove commands	1270	$match
999	for my $name (keys %COMMAND) {
1000	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1001
1002	if (@cb) {
1003	$COMMAND{$name} = \@cb;
1004	} else {
1005	delete $COMMAND{$name};
1006	}
1007	}
1008
1009	# remove extcmds
1010	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1011	delete $EXTCMD{$name};
1012	}
1013
1014	if (my $cb = $pkg->can ("unload")) {
1015	eval {
1016	$cb->($pkg);
1017	1
1018	} or warn "$pkg unloaded, but with errors: $@";
1019	}
1020
1021	Symbol::delete_package $pkg;
1022	}
1023
1024	sub load_extensions {
1025	for my $ext (<$LIBDIR/*.ext>) {
1026	next unless -r $ext;
1027	eval {
1028	load_extension $ext;
1029	1
1030	} or warn "$ext not loaded: $@";
1031	}
1032	}
1033
1034	#############################################################################
1035	# load/save/clean perl data associated with a map
1036
1037	*cf::mapsupport::on_clean = sub {
1038	my ($map) = @_;
1039
1040	my $path = $map->tmpname;
1041	defined $path or return;
1042
1043	unlink "$path.pst";
1044	};
1045
1046	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1047
1048	#############################################################################
1049	# load/save perl data associated with player->ob objects
1050
1051	sub all_objects(@) {
1052	@_, map all_objects ($_->inv), @_
1053	}
1054
1055	# TODO: compatibility cruft, remove when no longer needed
1056	cf::player->attach (
1057	on_load => sub {
1058	my ($pl, $path) = @_;
1059
1060	for my $o (all_objects $pl->ob) {
1061	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1062	$o->set_ob_key_value ("_perl_data");
1063
1064	%$o = %{ Storable::thaw pack "H*", $value };
1065	}
1066	}
1067	},
1068	);
1069
1070	#############################################################################
1071
1072	=head2 CORE EXTENSIONS
1073
1074	Functions and methods that extend core crossfire objects.
1075
1076	=head3 cf::player
1077
1078	=over 4
1079
1080	=item cf::player::exists $login
1081
1082	Returns true when the given account exists.
1083
1084	=cut
1085
1086	sub cf::player::exists($) {
1087	cf::player::find $_[0]
1088	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1089	}
1090
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)
1092
1093	Sends an ext reply to the player.
1094
1095	=cut
1096
1097	sub cf::player::ext_reply($$$%) {
1098	my ($self, $id, %msg) = @_;
1099
1100	$msg{msgid} = $id;
1101
1102	$self->send ("ext " . to_json \%msg);
1103	}	1271	}
1104		1272
1105	=back	1273	=back
1106
1107		1274
1108	=head3 cf::map	1275	=head3 cf::map
1109		1276
1110	=over 4	1277	=over 4
1111		1278
…		…
1114	package cf::map;	1281	package cf::map;
1115		1282
1116	use Fcntl;	1283	use Fcntl;
1117	use Coro::AIO;	1284	use Coro::AIO;
1118		1285
		1286	use overload
		1287	'""' => \&as_string,
		1288	fallback => 1;
		1289
1119	our $MAX_RESET = 3600;	1290	our $MAX_RESET = 3600;
1120	our $DEFAULT_RESET = 3000;	1291	our $DEFAULT_RESET = 3000;
1121		1292
1122	sub generate_random_map {	1293	sub generate_random_map {
1123	my ($path, $rmp) = @_;	1294	my ($self, $rmp) = @_;
1124
1125	# mit "rum" bekleckern, nicht	1295	# mit "rum" bekleckern, nicht
1126	cf::map::_create_random_map	1296	$self->_create_random_map (
1127	$path,
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1297	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1298	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1299	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},	1300	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},	1301	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1302	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1303	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1304	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$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},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1306	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(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"
1139	}	1436	}
1140		1437
1141	# and all this just because we cannot iterate over	1438	# and all this just because we cannot iterate over
1142	# all maps in C++...	1439	# all maps in C++...
1143	sub change_all_map_light {	1440	sub change_all_map_light {
…		…
1145		1442
1146	$_->change_map_light ($change)	1443	$_->change_map_light ($change)
1147	for grep $_->outdoor, values %cf::MAP;	1444	for grep $_->outdoor, values %cf::MAP;
1148	}	1445	}
1149		1446
		1447	sub decay_objects {
		1448	my ($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
1150	sub try_load_header($) {	1463	sub load_header_from($) {
1151	my ($path) = @_;	1464	my ($self, $path) = @_;
1152		1465
1153	utf8::encode $path;	1466	utf8::encode $path;
1154	aio_open $path, O_RDONLY, 0	1467	#aio_open $path, O_RDONLY, 0
		1468	# or return;
		1469
		1470	$self->_load_header ($path)
1155	or return;	1471	or return;
1156		1472
1157	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
1158	or return;	1516	or return;
		1517	$self->prepare_orig;
		1518	}
1159		1519
1160	# for better error messages only, will be overwritten	1520	$self->{deny_reset} = 1
1161	$map->path ($path);	1521	if $self->no_reset;
1162		1522
1163	$map->load_header ($path)	1523	$self->default_region (cf::region::find_by_path $self->{path})
1164	or return;	1524	unless $self->default_region;
1165		1525
1166	$map->{load_path} = $path;	1526	1
1167
1168	$map
1169	}	1527	}
1170		1528
1171	sub find;	1529	sub find;
1172	sub find {	1530	sub find {
1173	my ($path, $origin) = @_;	1531	my ($path, $origin) = @_;
1174		1532
1175	#warn "find<$path,$origin>\n";#d#
1176
1177	$path = new cf::path $path, $origin && $origin->path;	1533	$path = normalise $path, $origin && $origin->path;
1178	my $key = $path->as_string;
1179		1534
1180	cf::lock_wait "map_find:$key";	1535	cf::lock_wait "map_find:$path";
1181		1536
1182	$cf::MAP{$key} || do {	1537	$cf::MAP{$path} || do {
1183	my $guard = cf::lock_acquire "map_find:$key";	1538	my $guard = cf::lock_acquire "map_find:$path";
1184		1539	my $map = new_from_path cf::map $path
1185	# do it the slow way
1186	my $map = try_load_header $path->save_path;
1187
1188	Coro::cede;
1189
1190	if ($map) {
1191	$map->last_access ((delete $map->{last_access})
1192	|| $cf::RUNTIME); #d#
1193	# safety
1194	$map->{instantiate_time} = $cf::RUNTIME
1195	if $map->{instantiate_time} > $cf::RUNTIME;
1196	} else {
1197	if (my $rmp = $path->random_map_params) {
1198	$map = generate_random_map $key, $rmp;
1199	} else {
1200	$map = try_load_header $path->load_path;
1201	}
1202
1203	$map or return;	1540	or return;
1204		1541
1205	$map->{load_original} = 1;
1206	$map->{instantiate_time} = $cf::RUNTIME;
1207	$map->last_access ($cf::RUNTIME);
1208	$map->instantiate;
1209
1210	# per-player maps become, after loading, normal maps
1211	$map->per_player (0) if $path->{user_rel};
1212	}
1213
1214	$map->path ($key);
1215	$map->{path} = $path;
1216	$map->{last_save} = $cf::RUNTIME;	1542	$map->{last_save} = $cf::RUNTIME;
1217		1543
1218	Coro::cede;	1544	$map->load_header
		1545	or return;
1219		1546
1220	if ($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;
1221	$map->reset;	1550	$map->reset;
1222	undef $guard;	1551	undef $guard;
1223	$map = find $path	1552	return find $path;
1224	or return;
1225	}	1553	}
1226		1554
1227	$cf::MAP{$key} = $map	1555	$cf::MAP{$path} = $map
1228	}	1556	}
1229	}	1557	}
		1558
		1559	sub pre_load { }
		1560	sub post_load { }
1230		1561
1231	sub load {	1562	sub load {
1232	my ($self) = @_;	1563	my ($self) = @_;
1233		1564
		1565	local $self->{deny_reset} = 1; # loading can take a long time
		1566
1234	my $path = $self->{path};	1567	my $path = $self->{path};
		1568
		1569	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1570	my $guard = cf::lock_acquire "map_load:$path";
1236		1571
1237	return if $self->in_memory != cf::MAP_SWAPPED;	1572	return if $self->in_memory != cf::MAP_SWAPPED;
1238		1573
1239	$self->in_memory (cf::MAP_LOADING);	1574	$self->in_memory (cf::MAP_LOADING);
1240		1575
1241	$self->alloc;	1576	$self->alloc;
		1577
		1578	$self->pre_load;
		1579	Coro::cede;
		1580
1242	$self->load_objects ($self->{load_path}, 1)	1581	$self->_load_objects ($self->{load_path}, 1)
1243	or return;	1582	or return;
1244		1583
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1584	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1246	if delete $self->{load_original};	1585	if delete $self->{load_original};
1247		1586
1248	if (my $uniq = $path->uniq_path) {	1587	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	1588	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	1589	if (aio_open $uniq, O_RDONLY, 0) {
1251	$self->clear_unique_items;	1590	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	1591	$self->_load_objects ($uniq, 0);
1253	}	1592	}
1254	}	1593	}
1255		1594
1256	Coro::cede;	1595	Coro::cede;
1257
1258	# now do the right thing for maps	1596	# now do the right thing for maps
1259	$self->link_multipart_objects;	1597	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	1598	$self->difficulty ($self->estimate_difficulty)
1270	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;
1271	$self->activate;	1609	$self->activate;
1272	}	1610	}
1273		1611
1274	Coro::cede;
1275
1276	$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	$neigh->load;
		1651	}
1277	}	1652	}
1278		1653
1279	sub find_sync {	1654	sub find_sync {
1280	my ($path, $origin) = @_;	1655	my ($path, $origin) = @_;
1281		1656
1282	cf::sync_job { cf::map::find $path, $origin }	1657	cf::sync_job { find $path, $origin }
1283	}	1658	}
1284		1659
1285	sub do_load_sync {	1660	sub do_load_sync {
1286	my ($map) = @_;	1661	my ($map) = @_;
1287		1662
1288	cf::sync_job { $map->load };	1663	cf::sync_job { $map->load };
1289	}	1664	}
1290		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	$MAP_PREFETCHER->prio (6);
		1692
		1693	()
		1694	}
		1695
1291	sub save {	1696	sub save {
1292	my ($self) = @_;	1697	my ($self) = @_;
1293		1698
1294	my $lock = cf::lock_acquire "map_data:" . $self->path;	1699	my $lock = cf::lock_acquire "map_data:" . $self->path;
1295		1700
1296	$self->{last_save} = $cf::RUNTIME;	1701	$self->{last_save} = $cf::RUNTIME;
1297		1702
1298	return unless $self->dirty;	1703	return unless $self->dirty;
1299		1704
1300	my $save = $self->{path}->save_path; utf8::encode $save;	1705	my $save = $self->save_path; utf8::encode $save;
1301	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1706	my $uniq = $self->uniq_path; utf8::encode $uniq;
1302		1707
1303	$self->{load_path} = $save;	1708	$self->{load_path} = $save;
1304		1709
1305	return if $self->{deny_save};	1710	return if $self->{deny_save};
1306		1711
1307	local $self->{last_access} = $self->last_access;#d#	1712	local $self->{last_access} = $self->last_access;#d#
1308		1713
		1714	cf::async {
		1715	$_->contr->save for $self->players;
		1716	};
		1717
1309	if ($uniq) {	1718	if ($uniq) {
1310	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1719	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1311	$self->save_objects ($uniq, cf::IO_UNIQUES);	1720	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1312	} else {	1721	} else {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1722	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1314	}	1723	}
1315	}	1724	}
1316		1725
1317	sub swap_out {	1726	sub swap_out {
1318	my ($self) = @_;	1727	my ($self) = @_;
…		…
1332		1741
1333	sub reset_at {	1742	sub reset_at {
1334	my ($self) = @_;	1743	my ($self) = @_;
1335		1744
1336	# TODO: safety, remove and allow resettable per-player maps	1745	# TODO: safety, remove and allow resettable per-player maps
1337	return 1e99 if $self->{path}{user_rel};
1338	return 1e99 if $self->{deny_reset};	1746	return 1e99 if $self->{deny_reset};
1339		1747
1340	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1748	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1341	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1749	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1342		1750
…		…
1347	my ($self) = @_;	1755	my ($self) = @_;
1348		1756
1349	$self->reset_at <= $cf::RUNTIME	1757	$self->reset_at <= $cf::RUNTIME
1350	}	1758	}
1351		1759
1352	sub unlink_save {
1353	my ($self) = @_;
1354
1355	utf8::encode (my $save = $self->{path}->save_path);
1356	aioreq_pri 3; IO::AIO::aio_unlink $save;
1357	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1358	}
1359
1360	sub rename {
1361	my ($self, $new_path) = @_;
1362
1363	$self->unlink_save;
1364
1365	delete $cf::MAP{$self->path};
1366	$self->{path} = new cf::path $new_path;
1367	$self->path ($self->{path}->as_string);
1368	$cf::MAP{$self->path} = $self;
1369
1370	$self->save;
1371	}
1372
1373	sub reset {	1760	sub reset {
1374	my ($self) = @_;	1761	my ($self) = @_;
1375		1762
1376	my $lock = cf::lock_acquire "map_data:" . $self->path;	1763	my $lock = cf::lock_acquire "map_data:$self->{path}";
1377		1764
1378	return if $self->players;	1765	return if $self->players;
1379	return if $self->{path}{user_rel};#d#
1380		1766
1381	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	}
1382		1778
1383	delete $cf::MAP{$self->path};	1779	delete $cf::MAP{$self->path};
		1780
		1781	$self->clear;
1384		1782
1385	$_->clear_links_to ($self) for values %cf::MAP;	1783	$_->clear_links_to ($self) for values %cf::MAP;
1386		1784
1387	$self->unlink_save;	1785	$self->unlink_save;
1388	$self->destroy;	1786	$self->destroy;
…		…
1391	my $nuke_counter = "aaaa";	1789	my $nuke_counter = "aaaa";
1392		1790
1393	sub nuke {	1791	sub nuke {
1394	my ($self) = @_;	1792	my ($self) = @_;
1395		1793
		1794	delete $cf::MAP{$self->path};
		1795
		1796	$self->unlink_save;
		1797
		1798	bless $self, "cf::map";
		1799	delete $self->{deny_reset};
1396	$self->{deny_save} = 1;	1800	$self->{deny_save} = 1;
1397	$self->reset_timeout (1);	1801	$self->reset_timeout (1);
1398	$self->rename ("{nuke}/" . ($nuke_counter++));	1802	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1803
		1804	$cf::MAP{$self->path} = $self;
		1805
1399	$self->reset; # polite request, might not happen	1806	$self->reset; # polite request, might not happen
1400	}	1807	}
1401		1808
1402	sub customise_for {	1809	=item $maps = cf::map::tmp_maps
1403	my ($map, $ob) = @_;
1404		1810
1405	if ($map->per_player) {	1811	Returns an arrayref with all map paths of currently instantiated and saved
1406	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1812	maps. May block.
		1813
		1814	=cut
		1815
		1816	sub tmp_maps() {
1407	}	1817	[
1408		1818	map {
1409	$map	1819	utf8::decode $_;
		1820	/\.map$/
		1821	? normalise $_
		1822	: ()
		1823	} @{ aio_readdir $TMPDIR or [] }
		1824	]
1410	}	1825	}
1411		1826
1412	sub emergency_save {	1827	=item $maps = cf::map::random_maps
1413	my $freeze_guard = cf::freeze_mainloop;
1414		1828
1415	warn "enter emergency map save\n";	1829	Returns an arrayref with all map paths of currently instantiated and saved
		1830	random maps. May block.
1416		1831
1417	cf::sync_job {	1832	=cut
1418	warn "begin emergency map save\n";
1419	$_->save for values %cf::MAP;
1420	};
1421		1833
1422	warn "end emergency map save\n";	1834	sub random_maps() {
		1835	[
		1836	map {
		1837	utf8::decode $_;
		1838	/\.map$/
		1839	? normalise "?random/$_"
		1840	: ()
		1841	} @{ aio_readdir $RANDOMDIR or [] }
		1842	]
		1843	}
		1844
		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	]
1423	}	1861	}
1424		1862
1425	package cf;	1863	package cf;
1426		1864
1427	=back	1865	=back
1428		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
1429		1893
1430	=head3 cf::object::player	1894	=head3 cf::object::player
1431		1895
1432	=over 4	1896	=over 4
1433		1897
…		…
1473		1937
1474	=item $player_object->enter_link	1938	=item $player_object->enter_link
1475		1939
1476	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}>).
1477		1941
1478	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
1479	I<MUST> call C<leave_link> as soon as possible, though.	1943	I<MUST> call C<leave_link> as soon as possible, though.
1480		1944
		1945	Will never block.
		1946
1481	=item $player_object->leave_link ($map, $x, $y)	1947	=item $player_object->leave_link ($map, $x, $y)
1482		1948
1483	Moves the player out of the specila link map onto the given map. If the	1949	Moves the player out of the special C<{link}> map onto the specified
1484	map is not valid (or omitted), the player will be moved back to the	1950	map. If the map is not valid (or omitted), the player will be moved back
1485	location he/she was before the call to C<enter_link>, or, if that fails,	1951	to the location he/she was before the call to C<enter_link>, or, if that
1486	to the emergency map position.	1952	fails, to the emergency map position.
1487		1953
1488	Might block.	1954	Might block.
1489		1955
1490	=cut	1956	=cut
		1957
		1958	sub link_map {
		1959	unless ($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	$LINK_MAP
		1966	}
1491		1967
1492	sub cf::object::player::enter_link {	1968	sub cf::object::player::enter_link {
1493	my ($self) = @_;	1969	my ($self) = @_;
1494		1970
1495	$self->deactivate_recursive;	1971	$self->deactivate_recursive;
1496		1972
1497	return if $self->map == $LINK_MAP;	1973	return if UNIVERSAL::isa $self->map, "ext::map_link";
1498		1974
1499	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1975	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1500	if $self->map;	1976	if $self->map && $self->map->{path} ne "{link}";
1501		1977
1502	$self->enter_map ($LINK_MAP, 20, 20);	1978	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1503	}	1979	}
1504		1980
1505	sub cf::object::player::leave_link {	1981	sub cf::object::player::leave_link {
1506	my ($self, $map, $x, $y) = @_;	1982	my ($self, $map, $x, $y) = @_;
		1983
		1984	return unless $self->contr->active;
1507		1985
1508	my $link_pos = delete $self->{_link_pos};	1986	my $link_pos = delete $self->{_link_pos};
1509		1987
1510	unless ($map) {	1988	unless ($map) {
1511	# restore original map position	1989	# restore original map position
…		…
1525	# use -1 or undef as default coordinates, not 0, 0	2003	# use -1 or undef as default coordinates, not 0, 0
1526	($x, $y) = ($map->enter_x, $map->enter_y)	2004	($x, $y) = ($map->enter_x, $map->enter_y)
1527	if $x <=0 && $y <= 0;	2005	if $x <=0 && $y <= 0;
1528		2006
1529	$map->load;	2007	$map->load;
		2008	$map->load_diag;
1530		2009
		2010	return unless $self->contr->active;
1531	$self->activate_recursive;	2011	$self->activate_recursive;
		2012
		2013	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1532	$self->enter_map ($map, $x, $y);	2014	$self->enter_map ($map, $x, $y);
1533	}	2015	}
1534		2016
1535	cf::player->attach (
1536	on_logout => sub {
1537	my ($pl) = @_;
1538
1539	# abort map switching before logout
1540	if ($pl->ob->{_link_pos}) {
1541	cf::sync_job {
1542	$pl->ob->leave_link
1543	};
1544	}
1545	},
1546	on_login => sub {
1547	my ($pl) = @_;
1548
1549	# try to abort aborted map switching on player login :)
1550	# should happen only on crashes
1551	if ($pl->ob->{_link_pos}) {
1552
1553	$pl->ob->enter_link;
1554	(async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	$pl->ob->reply (undef,
1558	"There was an internal problem at your last logout, "
1559	. "the server will try to bring you to your intended destination in a second.",
1560	cf::NDI_RED);
1561	Coro::Timer::sleep 1;
1562	$pl->ob->leave_link;
1563	})->prio (2);
1564	}
1565	},
1566	);
1567
1568	=item $player_object->goto ($path, $x, $y)	2017	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1569		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
1570	=cut	2024	=cut
		2025
		2026	our $GOTOGEN;
1571		2027
1572	sub cf::object::player::goto {	2028	sub cf::object::player::goto {
1573	my ($self, $path, $x, $y) = @_;	2029	my ($self, $path, $x, $y, $check) = @_;
		2030
		2031	# do generation counting so two concurrent goto's will be executed in-order
		2032	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1574		2033
1575	$self->enter_link;	2034	$self->enter_link;
1576		2035
1577	(async {	2036	(async {
1578	$path = new cf::path $path;	2037	my $map = eval {
1579
1580	my $map = cf::map::find $path->as_string;	2038	my $map = cf::map::find $path;
		2039
		2040	if ($map) {
1581	$map = $map->customise_for ($self) if $map;	2041	$map = $map->customise_for ($self);
1582		2042	$map = $check->($map) if $check && $map;
1583	# warn "entering ", $map->path, " at ($x, $y)\n"	2043	} else {
1584	# if $map;
1585
1586	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2044	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2045	}
1587		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};
1588	$self->leave_link ($map, $x, $y);	2057	$self->leave_link ($map, $x, $y);
		2058	}
1589	})->prio (1);	2059	})->prio (1);
1590	}	2060	}
1591		2061
1592	=item $player_object->enter_exit ($exit_object)	2062	=item $player_object->enter_exit ($exit_object)
1593		2063
…		…
1595		2065
1596	sub parse_random_map_params {	2066	sub parse_random_map_params {
1597	my ($spec) = @_;	2067	my ($spec) = @_;
1598		2068
1599	my $rmp = { # defaults	2069	my $rmp = { # defaults
1600	xsize => 10,	2070	xsize => (cf::rndm 15, 40),
1601	ysize => 10,	2071	ysize => (cf::rndm 15, 40),
		2072	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2073	#layout => string,
1602	};	2074	};
1603		2075
1604	for (split /\n/, $spec) {	2076	for (split /\n/, $spec) {
1605	my ($k, $v) = split /\s+/, $_, 2;	2077	my ($k, $v) = split /\s+/, $_, 2;
1606		2078
…		…
1610	$rmp	2082	$rmp
1611	}	2083	}
1612		2084
1613	sub prepare_random_map {	2085	sub prepare_random_map {
1614	my ($exit) = @_;	2086	my ($exit) = @_;
		2087
		2088	my $guard = cf::lock_acquire "exit_prepare:$exit";
1615		2089
1616	# all this does is basically replace the /! path by	2090	# all this does is basically replace the /! path by
1617	# a new random map path (?random/...) with a seed	2091	# a new random map path (?random/...) with a seed
1618	# that depends on the exit object	2092	# that depends on the exit object
1619		2093
1620	my $rmp = parse_random_map_params $exit->msg;	2094	my $rmp = parse_random_map_params $exit->msg;
1621		2095
1622	if ($exit->map) {	2096	if ($exit->map) {
1623	$rmp->{region} = $exit->map->region_name;	2097	$rmp->{region} = $exit->region->name;
1624	$rmp->{origin_map} = $exit->map->path;	2098	$rmp->{origin_map} = $exit->map->path;
1625	$rmp->{origin_x} = $exit->x;	2099	$rmp->{origin_x} = $exit->x;
1626	$rmp->{origin_y} = $exit->y;	2100	$rmp->{origin_y} = $exit->y;
1627	}	2101	}
1628		2102
1629	$rmp->{random_seed} ||= $exit->random_seed;	2103	$rmp->{random_seed} ||= $exit->random_seed;
1630		2104
1631	my $data = cf::to_json $rmp;	2105	my $data = cf::to_json $rmp;
1632	my $md5 = Digest::MD5::md5_hex $data;	2106	my $md5 = Digest::MD5::md5_hex $data;
		2107	my $meta = "$RANDOMDIR/$md5.meta";
1633		2108
1634	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) {
1635	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;
1636		2113
1637	$exit->slaying ("?random/$md5");	2114	$exit->slaying ("?random/$md5");
1638	$exit->msg (undef);	2115	$exit->msg (undef);
1639	}	2116	}
1640	}	2117	}
1641		2118
1642	sub cf::object::player::enter_exit {	2119	sub cf::object::player::enter_exit {
1643	my ($self, $exit) = @_;	2120	my ($self, $exit) = @_;
1644		2121
1645	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;
1646		2134
1647	$self->enter_link;	2135	$self->enter_link;
1648		2136
1649	(async {	2137	(async {
1650	$self->deactivate_recursive; # just to be sure	2138	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2139	unless (eval {
1652	prepare_random_map $exit	2140	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1657		2141
1658	1;	2142	1;
1659	}) {	2143	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2144	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "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. "
1662	. "Please report this to the dungeon master",	2146	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2147	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2148
1665	warn "ERROR in enter_exit: $@";	2149	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2150	$self->leave_link;
1667	}	2151	}
1668	})->prio (1);	2152	})->prio (1);
…		…
1681		2165
1682	sub cf::client::send_drawinfo {	2166	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2167	my ($self, $text, $flags) = @_;
1684		2168
1685	utf8::encode $text;	2169	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2170	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2171	}
1688		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	}
1689		2185
1690	=item $success = $client->query ($flags, "text", \&cb)	2186	=item $success = $client->query ($flags, "text", \&cb)
1691		2187
1692	Queues a query to the client, calling the given callback with	2188	Queues a query to the client, calling the given callback with
1693	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>,
…		…
1722	# get handled first	2218	# get handled first
1723	my $queue = delete $ns->{query_queue}	2219	my $queue = delete $ns->{query_queue}
1724	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
1725		2221
1726	(shift @$queue)->[1]->($msg);	2222	(shift @$queue)->[1]->($msg);
		2223	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2224
1728	push @{ $ns->{query_queue} }, @$queue;	2225	push @{ $ns->{query_queue} }, @$queue;
1729		2226
1730	if (@{ $ns->{query_queue} } == @$queue) {	2227	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2228	if (@$queue) {
…		…
1789		2286
1790	# here we export the classes and methods available to script code	2287	# here we export the classes and methods available to script code
1791		2288
1792	=pod	2289	=pod
1793		2290
1794	The following fucntions and emthods are available within a safe environment:	2291	The following functions and methods are available within a safe environment:
1795		2292
1796	cf::object contr pay_amount pay_player map	2293	cf::object contr pay_amount pay_player map
1797	cf::object::player player	2294	cf::object::player player
1798	cf::player peaceful	2295	cf::player peaceful
1799	cf::map trigger	2296	cf::map trigger
…		…
1884	#############################################################################	2381	#############################################################################
1885		2382
1886	=head2 EXTENSION DATABASE SUPPORT	2383	=head2 EXTENSION DATABASE SUPPORT
1887		2384
1888	Crossfire maintains a very simple database for extension use. It can	2385	Crossfire maintains a very simple database for extension use. It can
1889	currently store anything that can be serialised using Storable, which	2386	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1890	excludes objects.	2387	convert to/from binary).
1891		2388
1892	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
1893	using it, it should be unique.	2390	using it, it should be unique.
1894		2391
1895	=over 4	2392	=over 4
1896		2393
1897	=item $hashref = cf::db_get $family
1898
1899	Return a hashref for use by the extension C<$family>, which can be
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902
1903	=item $value = cf::db_get $family => $key	2394	=item $value = cf::db_get $family => $key
1904		2395
1905	Returns a single value from the database	2396	Returns a single value from the database.
1906
1907	=item cf::db_put $family => $hashref
1908
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911		2397
1912	=item cf::db_put $family => $key => $value	2398	=item cf::db_put $family => $key => $value
1913		2399
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you	2400	Stores the given C<$value> in the family.
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924		2401
1925	=cut	2402	=cut
1926		2403
1927	our $DB;	2404	our $DB;
1928		2405
1929	{	2406	sub db_init {
1930	my $path = cf::localdir . "/database.pst";	2407	unless ($DB) {
		2408	$DB = BDB::db_create $DB_ENV;
1931		2409
1932	sub db_load() {	2410	cf::sync_job {
1933	$DB = stat $path ? Storable::retrieve $path : { };	2411	eval {
1934	}	2412	$DB->set_flags (BDB::CHKSUM);
1935		2413
1936	my $pid;	2414	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1937		2415	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1938	sub db_save() {	2416	cf::cleanup "db_open(db): $!" if $!;
1939	waitpid $pid, 0 if $pid;	2417	};
1940	if (0 == ($pid = fork)) {	2418	cf::cleanup "db_open(db): $@" if $@;
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}	2419	};
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	2420	}
		2421	}
1958		2422
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}
1963
1964	sub db_get($;$) {	2423	sub db_get($$) {
1965	@_ >= 2	2424	my $key = "$_[0]/$_[1]";
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969		2425
		2426	cf::sync_job {
		2427	BDB::db_get $DB, undef, $key, my $data;
		2428
		2429	$! ? ()
		2430	: $data
		2431	}
		2432	}
		2433
1970	sub db_put($$;$) {	2434	sub db_put($$$) {
1971	if (@_ >= 3) {	2435	BDB::dbreq_pri 4;
1972	$DB->{$_[0]}{$_[1]} = $_[2];	2436	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1973	} else {	2437	}
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978		2438
1979	cf::global->attach (	2439	=item cf::cache $id => [$paths...], $processversion => $process
1980	prio => 10000,	2440
1981	on_cleanup => sub {	2441	Generic caching function that returns the value of the resource $id,
1982	db_sync;	2442	caching and regenerating as required.
		2443
		2444	This function can block.
		2445
		2446	=cut
		2447
		2448	sub cache {
		2449	my ($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 "$src->[$_]: $!";
1983	},	2471	}
1984	);	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	}
1985	}	2551	}
1986		2552
1987	#############################################################################	2553	#############################################################################
1988	# 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	}
1989		2643
1990	sub cfg_load {	2644	sub cfg_load {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	2645	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	2646	or return;
1993		2647
1994	local $/;	2648	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	2649	*CFG = YAML::Syck::Load <$fh>;
1996		2650
…		…
1999	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2653	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2000	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2654	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2001		2655
2002	if (exists $CFG{mlockall}) {	2656	if (exists $CFG{mlockall}) {
2003	eval {	2657	eval {
2004	$CFG{mlockall} ? &mlockall : &munlockall	2658	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2005	and die "WARNING: m(un)lockall failed: $!\n";	2659	and die "WARNING: m(un)lockall failed: $!\n";
2006	};	2660	};
2007	warn $@ if $@;	2661	warn $@ if $@;
2008	}	2662	}
2009	}	2663	}
2010		2664
2011	sub main {	2665	sub main {
2012	# we must not ever block the main coroutine	2666	# we must not ever block the main coroutine
2013	local $Coro::idle = sub {	2667	local $Coro::idle = sub {
2014	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 {
2015	async { Event::one_event };	2670	Event::one_event;
		2671	})->prio (Coro::PRIO_MAX);
2016	};	2672	};
2017		2673
2018	cfg_load;	2674	cfg_load;
2019	db_load;	2675	db_init;
2020	load_extensions;	2676	load_extensions;
		2677
		2678	$TICK_WATCHER->start;
2021	Event::loop;	2679	Event::loop;
2022	}	2680	}
2023		2681
2024	#############################################################################	2682	#############################################################################
2025	# initialisation	2683	# initialisation and cleanup
2026		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
2027	sub reload() {	2740	sub do_reload_perl() {
2028	# can/must only be called in main	2741	# can/must only be called in main
2029	if ($Coro::current != $Coro::main) {	2742	if ($Coro::current != $Coro::main) {
2030	warn "can only reload from main coroutine\n";	2743	warn "can only reload from main coroutine";
2031	return;	2744	return;
2032	}	2745	}
2033		2746
2034	warn "reloading...";	2747	warn "reloading...";
2035		2748
2036	my $guard = freeze_mainloop;	2749	warn "entering sync_job";
		2750
		2751	cf::sync_job {
		2752	cf::write_runtime; # external watchdog should not bark
2037	cf::emergency_save;	2753	cf::emergency_save;
		2754	cf::write_runtime; # external watchdog should not bark
2038		2755
2039	eval {	2756	warn "syncing database to disk";
		2757	BDB::db_env_txn_checkpoint $DB_ENV;
		2758
2040	# 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
2041		2760
2042	# cancel all watchers	2761	warn "cancelling all WF_AUTOCANCEL watchers";
2043	for (Event::all_watchers) {	2762	for (Event::all_watchers) {
2044	$_->cancel if $_->data & WF_AUTOCANCEL;	2763	$_->cancel if $_->data & WF_AUTOCANCEL;
2045	}	2764	}
2046		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
2047	# cancel all extension coros	2777	warn "cancelling all extension coros";
2048	$_->cancel for values %EXT_CORO;	2778	$_->cancel for values %EXT_CORO;
2049	%EXT_CORO = ();	2779	%EXT_CORO = ();
2050		2780
2051	# unload all extensions	2781	warn "removing commands";
2052	for (@exts) {	2782	%COMMAND = ();
		2783
		2784	warn "removing ext commands";
		2785	%EXTCMD = ();
		2786
		2787	warn "unloading/nuking all extensions";
		2788	for my $pkg (@EXTS) {
2053	warn "unloading <$_>";	2789	warn "... unloading $pkg";
2054	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: $@";
2055	}	2796	}
2056		2797
		2798	warn "... nuking $pkg";
		2799	Symbol::delete_package $pkg;
		2800	}
		2801
2057	# unload all modules loaded from $LIBDIR	2802	warn "unloading all perl modules loaded from $LIBDIR";
2058	while (my ($k, $v) = each %INC) {	2803	while (my ($k, $v) = each %INC) {
2059	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2804	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2060		2805
2061	warn "removing <$k>";	2806	warn "... unloading $k";
2062	delete $INC{$k};	2807	delete $INC{$k};
2063		2808
2064	$k =~ s/\.pm$//;	2809	$k =~ s/\.pm$//;
2065	$k =~ s/\//::/g;	2810	$k =~ s/\//::/g;
2066		2811
…		…
2069	}	2814	}
2070		2815
2071	Symbol::delete_package $k;	2816	Symbol::delete_package $k;
2072	}	2817	}
2073		2818
2074	# sync database to disk
2075	cf::db_sync;
2076	IO::AIO::flush;
2077
2078	# get rid of safe::, as good as possible	2819	warn "getting rid of safe::, as good as possible";
2079	Symbol::delete_package "safe::$_"	2820	Symbol::delete_package "safe::$_"
2080	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);
2081		2822
2082	# remove register_script_function callbacks
2083	# TODO
2084
2085	# unload cf.pm "a bit"	2823	warn "unloading cf.pm \"a bit\"";
2086	delete $INC{"cf.pm"};	2824	delete $INC{"cf.pm"};
		2825	delete $INC{"cf/pod.pm"};
2087		2826
2088	# don't, removes xs symbols, too,	2827	# don't, removes xs symbols, too,
2089	# and global variables created in xs	2828	# and global variables created in xs
2090	#Symbol::delete_package __PACKAGE__;	2829	#Symbol::delete_package __PACKAGE__;
2091		2830
2092	# reload cf.pm	2831	warn "unload completed, starting to reload now";
		2832
2093	warn "reloading cf.pm";	2833	warn "reloading cf.pm";
2094	require cf;	2834	require cf;
2095	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2835	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2096		2836
2097	# load config and database again	2837	warn "loading config and database again";
2098	cf::cfg_load;	2838	cf::cfg_load;
2099	cf::db_load;
2100		2839
2101	# load extensions
2102	warn "load extensions";	2840	warn "loading extensions";
2103	cf::load_extensions;	2841	cf::load_extensions;
2104		2842
2105	# reattach attachments to objects	2843	warn "reattaching attachments to objects/players";
2106	warn "reattach";	2844	_global_reattach; # objects, sockets
2107	_global_reattach;	2845	warn "reattaching attachments to maps";
2108	};	2846	reattach $_ for values %MAP;
		2847	warn "reattaching attachments to players";
		2848	reattach $_ for values %PLAYER;
2109		2849
2110	if ($@) {	2850	warn "leaving sync_job";
		2851
		2852	1
		2853	} or do {
2111	warn $@;	2854	warn $@;
2112	warn "error while reloading, exiting.";	2855	warn "error while reloading, exiting.";
2113	exit 1;	2856	exit 1;
2114	}	2857	};
2115		2858
2116	warn "reloaded successfully";	2859	warn "reloaded";
2117	};	2860	};
2118		2861
2119	#############################################################################	2862	our $RELOAD_WATCHER; # used only during reload
2120		2863
2121	unless ($LINK_MAP) {	2864	sub reload_perl() {
2122	$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.
2123		2867
2124	$LINK_MAP->width (41);	2868	$RELOAD_WATCHER ||= Event->timer (
2125	$LINK_MAP->height (41);	2869	reentrant => 0,
2126	$LINK_MAP->alloc;
2127	$LINK_MAP->path ("{link}");
2128	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2129	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2130
2131	# dirty hack because... archetypes are not yet loaded
2132	Event->timer (
2133	after => 2,	2870	after => 0,
		2871	data => WF_AUTOCANCEL,
2134	cb => sub {	2872	cb => sub {
2135	$_[0]->w->cancel;	2873	do_reload_perl;
2136		2874	undef $RELOAD_WATCHER;
2137	# provide some exits "home"
2138	my $exit = cf::object::new "exit";
2139
2140	$exit->slaying ($EMERGENCY_POSITION->[0]);
2141	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2142	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2143
2144	$LINK_MAP->insert ($exit->clone, 19, 19);
2145	$LINK_MAP->insert ($exit->clone, 19, 20);
2146	$LINK_MAP->insert ($exit->clone, 19, 21);
2147	$LINK_MAP->insert ($exit->clone, 20, 19);
2148	$LINK_MAP->insert ($exit->clone, 20, 21);
2149	$LINK_MAP->insert ($exit->clone, 21, 19);
2150	$LINK_MAP->insert ($exit->clone, 21, 20);
2151	$LINK_MAP->insert ($exit->clone, 21, 21);
2152
2153	$exit->destroy;
2154	});	2875	},
2155		2876	);
2156	$LINK_MAP->{deny_save} = 1;
2157	$LINK_MAP->{deny_reset} = 1;
2158
2159	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2160	}	2877	}
2161
2162	register "<global>", __PACKAGE__;
2163		2878
2164	register_command "reload" => sub {	2879	register_command "reload" => sub {
2165	my ($who, $arg) = @_;	2880	my ($who, $arg) = @_;
2166		2881
2167	if ($who->flag (FLAG_WIZ)) {	2882	if ($who->flag (FLAG_WIZ)) {
2168	$who->message ("start of reload.");
2169	reload;
2170	$who->message ("end of reload.");	2883	$who->message ("reloading server.");
		2884	async { reload_perl };
2171	}	2885	}
2172	};	2886	};
2173		2887
2174	unshift @INC, $LIBDIR;	2888	unshift @INC, $LIBDIR;
2175		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;
2176	$TICK_WATCHER = Event->timer (	2915	$TICK_WATCHER = Event->timer (
2177	reentrant => 0,	2916	reentrant => 0,
		2917	parked => 1,
2178	prio => 0,	2918	prio => 0,
2179	at => $NEXT_TICK || $TICK,	2919	at => $NEXT_TICK || $TICK,
2180	data => WF_AUTOCANCEL,	2920	data => WF_AUTOCANCEL,
2181	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
2182	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
2183	$RUNTIME += $TICK;	2955	$RUNTIME += $TICK;
2184	$NEXT_TICK += $TICK;	2956	$NEXT_TICK += $TICK;
2185		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
2186	# 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
2187	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2979	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2188		2980
2189	$TICK_WATCHER->at ($NEXT_TICK);	2981	$TICK_WATCHER->at ($NEXT_TICK);
2190	$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
2191	},	2990	},
2192	);	2991	);
2193		2992
		2993	{
2194	IO::AIO::max_poll_time $TICK * 0.2;	2994	BDB::max_poll_time $TICK * 0.1;
2195		2995	$BDB_POLL_WATCHER = Event->io (
2196	Event->io (	2996	reentrant => 0,
2197	fd => IO::AIO::poll_fileno,	2997	fd => BDB::poll_fileno,
2198	poll => 'r',	2998	poll => 'r',
2199	prio => 5,	2999	prio => 0,
2200	data => WF_AUTOCANCEL,
2201	cb => \&IO::AIO::poll_cb,
2202	);
2203
2204	Event->timer (
2205	data => WF_AUTOCANCEL,	3000	data => WF_AUTOCANCEL,
2206	after => 0,	3001	cb => \&BDB::poll_cb,
2207	interval => 10,	3002	);
2208	cb => sub {	3003	BDB::min_parallel 8;
2209	(Coro::unblock_sub {	3004
2210	write_runtime	3005	BDB::set_sync_prepare {
2211	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 $@;
2212	})->();	3039	};
2213	},	3040	}
2214	);	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;
2215		3098
2216	END { cf::emergency_save }	3099	END { cf::emergency_save }
2217		3100
2218	1	3101	1
2219		3102

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