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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.154 by root, Tue Jan 9 15:36:19 2007 UTC vs.
Revision 1.275 by root, Thu Jun 7 19:12:22 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
28		41
29	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
30	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
31		44
32	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
33		46
34	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
39		56
		57	our $RELOAD; # number of reloads so far
40	our @EVENT;	58	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		59
43	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
44	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	76	our $NEXT_TICK;
46	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
47		82
48	our %CFG;	83	our %CFG;
49		84
50	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	86	our $RUNTIME;
52		87
53	our %PLAYER; # all users	88	our %PLAYER; # all users
54	our %MAP; # all maps	89	our %MAP; # all maps
55	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";	91
57	our %EXT_CORO; # coroutines bound to extensions	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
58		98
59	binmode STDOUT;	99	binmode STDOUT;
60	binmode STDERR;	100	binmode STDERR;
61		101
62	# read virtual server time, if available	102	# read virtual server time, if available
63	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
64	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
65	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
66	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
67	}	107	}
68		108
69	mkdir cf::localdir;	109	mkdir $_
70	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
71	mkdir cf::localdir . "/" . cf::tmpdir;
72	mkdir cf::localdir . "/" . cf::uniquedir;
73	mkdir $RANDOM_MAPS;
74		111
75	# a special map that is always available
76	our $LINK_MAP;
77	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
78		115
79	#############################################################################	116	#############################################################################
80		117
81	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
82		119
…		…
89	=item $cf::RUNTIME	126	=item $cf::RUNTIME
90		127
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	129	every server tick.
93		130
94	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		134
96	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
98		139
99	=item $cf::NOW	140	=item $cf::NOW
100		141
101	The time of the last (current) server tick.	142	The time of the last (current) server tick.
102		143
103	=item $cf::TICK	144	=item $cf::TICK
104		145
105	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
106		157
107	=item %cf::CFG	158	=item %cf::CFG
108		159
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		168
112	=back	169	=back
113		170
114	=cut	171	=cut
115		172
116	BEGIN {	173	BEGIN {
117	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	175	my $msg = join "", @_;
119	utf8::encode $msg;
120		176
121	$msg .= "\n"	177	$msg .= "\n"
122	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
123		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
124	LOG llevError, $msg;	183	LOG llevError, $msg;
125	};	184	};
126	}	185	}
127		186
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		194
135	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	196	# within the Safe compartment.
137	for my $pkg (qw(	197	for my $pkg (qw(
138	cf::global cf::attachable	198	cf::global cf::attachable
…		…
146	}	206	}
147		207
148	$Event::DIED = sub {	208	$Event::DIED = sub {
149	warn "error in event callback: @_";	209	warn "error in event callback: @_";
150	};	210	};
151
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155		211
156	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
157		213
158	=over 4	214	=over 4
159		215
…		…
178	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
179	$d	235	$d
180	} || "[unable to dump $_[0]: '$@']";	236	} || "[unable to dump $_[0]: '$@']";
181	}	237	}
182		238
183	use JSON::Syck (); # TODO# replace by JSON::PC once working	239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
184		240
185	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
186		242
187	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
188		244
189	=cut
190
191	sub from_json($) {
192	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
193	JSON::Syck::Load $_[0]
194	}
195
196	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
197		246
198	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
199
200	=cut
201
202	sub to_json($) {
203	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
204	JSON::Syck::Dump $_[0]
205	}
206		248
207	=item cf::lock_wait $string	249	=item cf::lock_wait $string
208		250
209	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
210		252
…		…
216	returned.	258	returned.
217		259
218	Lock names should begin with a unique identifier (for example, cf::map::find	260	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
220		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
221	=cut	267	=cut
222		268
223	our %LOCK;	269	our %LOCK;
224		270
225	sub lock_wait($) {	271	sub lock_wait($) {
…		…
244	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
246	}	292	}
247	}	293	}
248		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
249	sub freeze_mainloop {	301	sub freeze_mainloop {
250	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
251		303
252	my $guard = Coro::guard { $TICK_WATCHER->start };	304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
253	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
254	$guard	308	$guard
255	}	309	}
256		310
257	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
279		333
280	sub sync_job(&) {	334	sub sync_job(&) {
281	my ($job) = @_;	335	my ($job) = @_;
282		336
283	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
284	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
285	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
286		342
287	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
288	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
299		355
300	while ($busy) {	356	while ($busy) {
301	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
302	}	358	}
303		359
		360	$time = Event::time - $time;
		361
		362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		364
		365	$tick_start += $time; # do not account sync jobs to server load
		366
304	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
305	} else {	368	} else {
306	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
307		370
308	$job->()	371	$job->()
309	}	372	}
310	}	373	}
311		374
312	=item $coro = cf::async_ext { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
313		376
314	Like async, but this coro is automcatially being canceled when the	377	Like async, but this coro is automatically being canceled when the
315	extension calling this is being unloaded.	378	extension calling this is being unloaded.
316		379
317	=cut	380	=cut
318		381
319	sub async_ext(&) {	382	sub async_ext(&) {
…		…
328		391
329	$coro	392	$coro
330	}	393	}
331		394
332	sub write_runtime {	395	sub write_runtime {
333	my $runtime = cf::localdir . "/runtime";	396	my $runtime = "$LOCALDIR/runtime";
		397
		398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
		403	my $guard = cf::lock_acquire "write_runtime";
334		404
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336	or return;	406	or return;
337		407
		408	my $value = $cf::RUNTIME + 90 + 10;
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;	413	and return;
341		414
		415	# always fsync - this file is important
342	aio_fsync $fh	416	aio_fsync $fh
343	and return;	417	and return;
344		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
345	close $fh	422	close $fh
346	or return;	423	or return;
347		424
348	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
349	and return;	426	and return;
350		427
		428	warn "runtime file written.\n";
		429
351	1	430	1
352	}	431	}
353		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
354	=back	444	=back
355		445
356	=cut	446	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	# used to convert map paths into valid unix filenames by repalcing / by ∕
363	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
364
365	sub new {
366	my ($class, $path, $base) = @_;
367
368	$path = $path->as_string if ref $path;
369
370	my $self = bless { }, $class;
371
372	# {... are special paths that are not touched
373	# ?xxx/... are special absolute paths
374	# ?random/... random maps
375	# /! non-realised random map exit
376	# /... normal maps
377	# ~/... per-player maps without a specific player (DO NOT USE)
378	# ~user/... per-player map of a specific user
379
380	if ($path =~ /^{/) {
381	# fine as it is
382	} elsif ($path =~ s{^\?random/}{}) {
383	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
384	$self->{random} = cf::from_json $data;
385	} else {
386	if ($path =~ s{^~([^/]+)?}{}) {
387	$self->{user_rel} = 1;
388
389	if (defined $1) {
390	$self->{user} = $1;
391	} elsif ($base =~ m{^~([^/]+)/}) {
392	$self->{user} = $1;
393	} else {
394	warn "cannot resolve user-relative path without user <$path,$base>\n";
395	}
396	} elsif ($path =~ /^\//) {
397	# already absolute
398	} else {
399	$base =~ s{[^/]+/?$}{};
400	return $class->new ("$base/$path");
401	}
402
403	for ($path) {
404	redo if s{/\.?/}{/};
405	redo if s{/[^/]+/\.\./}{/};
406	}
407	}
408
409	$self->{path} = $path;
410
411	$self
412	}
413
414	# the name / primary key / in-game path
415	sub as_string {
416	my ($self) = @_;
417
418	$self->{user_rel} ? "~$self->{user}$self->{path}"
419	: $self->{random} ? "?random/$self->{path}"
420	: $self->{path}
421	}
422
423	# the displayed name, this is a one way mapping
424	sub visible_name {
425	my ($self) = @_;
426
427	# if (my $rmp = $self->{random}) {
428	# # todo: be more intelligent about this
429	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
430	# } else {
431	$self->as_string
432	# }
433	}
434
435	# escape the /'s in the path
436	sub _escaped_path {
437	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
438	$path
439	}
440
441	# the original (read-only) location
442	sub load_path {
443	my ($self) = @_;
444
445	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
446	}
447
448	# the temporary/swap location
449	sub save_path {
450	my ($self) = @_;
451
452	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
453	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
454	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
455	}
456
457	# the unique path, might be eq to save_path
458	sub uniq_path {
459	my ($self) = @_;
460
461	$self->{user_rel} || $self->{random}
462	? undef
463	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
464	}
465
466	# return random map parameters, or undef
467	sub random_map_params {
468	my ($self) = @_;
469
470	$self->{random}
471	}
472
473	# this is somewhat ugly, but style maps do need special treatment
474	sub is_style_map {
475	$_[0]{path} =~ m{^/styles/}
476	}
477
478	package cf;
479		447
480	#############################################################################	448	#############################################################################
481		449
482	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
483		451
…		…
609	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
610	our @CB_MAP = ();	578	our @CB_MAP = ();
611		579
612	my %attachment;	580	my %attachment;
613		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
614	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
615	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
616		590
617	use sort 'stable';	591	use sort 'stable';
618		592
…		…
652	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
653		627
654	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
655	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
656	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
657	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
658		632
659	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
660	my $pkg = shift @arg;	634	my $pkg = shift @arg;
661		635
662	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
703	if (ref $_[0]) {	677	if (ref $_[0]) {
704	_object_attach @_;	678	_object_attach @_;
705	} else {	679	} else {
706	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
707	}	681	}
		682	_recalc_want;
708	};	683	};
709		684
710	# all those should be optimised	685	# all those should be optimised
711	sub cf::attachable::detach {	686	sub cf::attachable::detach {
712	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
715	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
716	reattach ($obj);	691	reattach ($obj);
717	} else {	692	} else {
718	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
719	}	694	}
		695	_recalc_want;
720	};	696	};
721		697
722	sub cf::attachable::attached {	698	sub cf::attachable::attached {
723	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
724		700
…		…
789	# object support	765	# object support
790		766
791	sub reattach {	767	sub reattach {
792	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
793	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
794		772
795	my $registry = $obj->registry;	773	my $registry = $obj->registry;
796		774
797	@$registry = ();	775	@$registry = ();
798		776
…		…
845	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
846		824
847	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
848	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
849	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
850	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
851	close $fh;	829	close $fh;
852		830
853	if (@$objs) {	831	if (@$objs) {
854	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
855	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
856	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
857	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
858	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
859	close $fh;	837	close $fh;
860	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
861	}	839	}
862	} else {	840	} else {
863	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
895	or return;	873	or return;
896	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
897	}	875	}
898		876
899	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
900	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
901	return ($data, $av);	879	return ($data, $av);
902	}	880	}
903		881
904	#############################################################################	882	#############################################################################
905	# command handling &c	883	# command handling &c
…		…
930	=cut	908	=cut
931		909
932	sub register_extcmd {	910	sub register_extcmd {
933	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
934		912
935	my $caller = caller;
936	#warn "registering extcmd '$name' to '$caller'";
937
938	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
939	}	914	}
940		915
941	cf::player->attach (	916	cf::player->attach (
942	on_command => sub {	917	on_command => sub {
943	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
956		931
957	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
958		933
959	if (ref $msg) {	934	if (ref $msg) {
960	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
961	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
962	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
963	}	938	}
964	}	939	}
965	} else {	940	} else {
966	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
968		943
969	cf::override;	944	cf::override;
970	},	945	},
971	);	946	);
972		947
973	sub register {
974	my ($base, $pkg) = @_;
975
976	#TODO
977	}
978
979	sub load_extension {	948	sub load_extension {
980	my ($path) = @_;	949	my ($path) = @_;
981		950
982	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
983	my $base = $1;	952	my $base = $1;
984	my $pkg = $1;	953	my $pkg = $1;
985	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
986	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
987		956
988	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
989		958
990	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
991	or die "$path: $!";	960	or die "$path: $!";
992		961
993	my $source =	962	my $source =
994	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
995	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
996	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
997	. "\n};\n1";	966	. "\n};\n1";
998		967
999	eval $source	968	unless (eval $source) {
1000	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
1001	: "extension disabled.\n";	970	: "extension disabled.\n";
1002		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1003	push @exts, $pkg;	972	warn $@;
1004	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
1005		974	exit 1;
1006	# no strict 'refs';	975	}
1007	# @{"$pkg\::ISA"} = ext::;	976	die $@;
1008
1009	register $base, $pkg;
1010	}
1011
1012	sub unload_extension {
1013	my ($pkg) = @_;
1014
1015	warn "removing extension $pkg\n";
1016
1017	# remove hooks
1018	#TODO
1019	# for my $idx (0 .. $#PLUGIN_EVENT) {
1020	# delete $hook[$idx]{$pkg};
1021	# }	977	}
1022		978
1023	# remove commands	979	push @EXTS, $pkg;
1024	for my $name (keys %COMMAND) {
1025	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1026
1027	if (@cb) {
1028	$COMMAND{$name} = \@cb;
1029	} else {
1030	delete $COMMAND{$name};
1031	}
1032	}
1033
1034	# remove extcmds
1035	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1036	delete $EXTCMD{$name};
1037	}
1038
1039	if (my $cb = $pkg->can ("unload")) {
1040	eval {
1041	$cb->($pkg);
1042	1
1043	} or warn "$pkg unloaded, but with errors: $@";
1044	}
1045
1046	Symbol::delete_package $pkg;
1047	}	980	}
1048		981
1049	sub load_extensions {	982	sub load_extensions {
1050	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
1051	next unless -r $ext;	984	next unless -r $ext;
…		…
1055	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
1056	}	989	}
1057	}	990	}
1058		991
1059	#############################################################################	992	#############################################################################
1060	# load/save/clean perl data associated with a map
1061
1062	*cf::mapsupport::on_clean = sub {
1063	my ($map) = @_;
1064
1065	my $path = $map->tmpname;
1066	defined $path or return;
1067
1068	unlink "$path.pst";
1069	};
1070
1071	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1072
1073	#############################################################################
1074	# load/save perl data associated with player->ob objects
1075
1076	sub all_objects(@) {
1077	@_, map all_objects ($_->inv), @_
1078	}
1079
1080	# TODO: compatibility cruft, remove when no longer needed
1081	cf::player->attach (
1082	on_load => sub {
1083	my ($pl, $path) = @_;
1084
1085	for my $o (all_objects $pl->ob) {
1086	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1087	$o->set_ob_key_value ("_perl_data");
1088
1089	%$o = %{ Storable::thaw pack "H*", $value };
1090	}
1091	}
1092	},
1093	);
1094
1095	#############################################################################
1096		993
1097	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1098		995
1099	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1100		997
…		…
1113	Returns the given player object, loading it if necessary (might block).	1010	Returns the given player object, loading it if necessary (might block).
1114		1011
1115	=cut	1012	=cut
1116		1013
1117	sub playerdir($) {	1014	sub playerdir($) {
1118	cf::localdir	1015	"$PLAYERDIR/"
1119	. "/"
1120	. cf::playerdir
1121	. "/"
1122	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1123	}	1017	}
1124		1018
1125	sub path($) {	1019	sub path($) {
1126	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1127		1021
1128	(playerdir $login) . "/$login.pl"	1022	(playerdir $login) . "/playerdata"
1129	}	1023	}
1130		1024
1131	sub find_active($) {	1025	sub find_active($) {
1132	$cf::PLAYER{$_[0]}	1026	$cf::PLAYER{$_[0]}
1133	and $cf::PLAYER{$_[0]}->active	1027	and $cf::PLAYER{$_[0]}->active
…		…
1136		1030
1137	sub exists($) {	1031	sub exists($) {
1138	my ($login) = @_;	1032	my ($login) = @_;
1139		1033
1140	$cf::PLAYER{$login}	1034	$cf::PLAYER{$login}
1141	or cf::sync_job { !aio_stat $login }	1035	or cf::sync_job { !aio_stat path $login }
1142	}	1036	}
1143		1037
1144	sub find($) {	1038	sub find($) {
1145	return $cf::PLAYER{$_[0]} || do {	1039	return $cf::PLAYER{$_[0]} || do {
1146	my $login = $_[0];	1040	my $login = $_[0];
1147		1041
1148	my $guard = cf::lock_acquire "user_find:$login";	1042	my $guard = cf::lock_acquire "user_find:$login";
1149		1043
1150	$cf::PLAYER{$_[0]} || do {	1044	$cf::PLAYER{$_[0]} || do {
		1045	# rename old playerfiles to new ones
		1046	#TODO: remove when no longer required
		1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1050	aio_unlink +(playerdir $login) . "/$login.pl";
		1051
1151	my $pl = load_pl path $login	1052	my $pl = load_pl path $login
1152	or return;	1053	or return;
1153	$cf::PLAYER{$login} = $pl	1054	$cf::PLAYER{$login} = $pl
1154	}	1055	}
1155	}	1056	}
…		…
1192		1093
1193	=cut	1094	=cut
1194		1095
1195	sub quit_character {	1096	sub quit_character {
1196	my ($pl) = @_;	1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
1197		1100
1198	$pl->{deny_save} = 1;	1101	$pl->{deny_save} = 1;
1199	$pl->password ("*"); # this should lock out the player until we nuked the dir	1102	$pl->password ("*"); # this should lock out the player until we nuked the dir
1200		1103
1201	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1206	my $path = playerdir $pl;	1109	my $path = playerdir $pl;
1207	my $temp = "$path~$cf::RUNTIME~deleting~";	1110	my $temp = "$path~$cf::RUNTIME~deleting~";
1208	aio_rename $path, $temp;	1111	aio_rename $path, $temp;
1209	delete $cf::PLAYER{$pl->ob->name};	1112	delete $cf::PLAYER{$pl->ob->name};
1210	$pl->destroy;	1113	$pl->destroy;
		1114
		1115	my $prefix = qr<^~\Q$name\E/>;
		1116
		1117	# nuke player maps
		1118	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1119
1211	IO::AIO::aio_rmtree $temp;	1120	IO::AIO::aio_rmtree $temp;
		1121	}
		1122
		1123	=item $pl->kick
		1124
		1125	Kicks a player out of the game. This destroys the connection.
		1126
		1127	=cut
		1128
		1129	sub kick {
		1130	my ($pl, $kicker) = @_;
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1133	$pl->killer ("kicked");
		1134	$pl->ns->destroy;
1212	}	1135	}
1213		1136
1214	=item cf::player::list_logins	1137	=item cf::player::list_logins
1215		1138
1216	Returns am arrayref of all valid playernames in the system, can take a	1139	Returns am arrayref of all valid playernames in the system, can take a
1217	while and may block, so not sync_job-capable, ever.	1140	while and may block, so not sync_job-capable, ever.
1218		1141
1219	=cut	1142	=cut
1220		1143
1221	sub list_logins {	1144	sub list_logins {
1222	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1145	my $dirs = aio_readdir $PLAYERDIR
1223	or return [];	1146	or return [];
1224		1147
1225	my @logins;	1148	my @logins;
1226		1149
1227	for my $login (@$dirs) {	1150	for my $login (@$dirs) {
1228	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1151	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1229	aio_read $fh, 0, 512, my $buf, 0 or next;	1152	aio_read $fh, 0, 512, my $buf, 0 or next;
1230	$buf !~ /^password -------------$/ or next; # official not-valid tag	1153	$buf !~ /^password -------------$/m or next; # official not-valid tag
1231		1154
1232	utf8::decode $login;	1155	utf8::decode $login;
1233	push @logins, $login;	1156	push @logins, $login;
1234	}	1157	}
1235		1158
1236	\@logins	1159	\@logins
1237	}	1160	}
1238		1161
1239	=item $player->maps	1162	=item $player->maps
1240		1163
1241	Returns an arrayref of cf::path's of all maps that are private for this	1164	Returns an arrayref of map paths that are private for this
1242	player. May block.	1165	player. May block.
1243		1166
1244	=cut	1167	=cut
1245		1168
1246	sub maps($) {	1169	sub maps($) {
1247	my ($pl) = @_;	1170	my ($pl) = @_;
		1171
		1172	$pl = ref $pl ? $pl->ob->name : $pl;
1248		1173
1249	my $files = aio_readdir playerdir $pl	1174	my $files = aio_readdir playerdir $pl
1250	or return;	1175	or return;
1251		1176
1252	my @paths;	1177	my @paths;
1253		1178
1254	for (@$files) {	1179	for (@$files) {
1255	utf8::decode $_;	1180	utf8::decode $_;
1256	next if /\.(?:pl|pst)$/;	1181	next if /\.(?:pl|pst)$/;
1257	next unless /^$PATH_SEP/;	1182	next unless /^$PATH_SEP/o;
1258		1183
1259	s/$PATH_SEP/\//g;	1184	push @paths, cf::map::normalise "~$pl/$_";
1260	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1261	}	1185	}
1262		1186
1263	\@paths	1187	\@paths
1264	}	1188	}
1265		1189
1266	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1267		1191
1268	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1269		1193
1270	=cut	1194	=cut
1271		1195
1272	sub ext_reply($$$%) {	1196	sub ext_reply($$%) {
1273	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1274		1198
1275	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1276		1200
1277	$self->send ("ext " . cf::to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
1278	}	1202	}
1279		1203
1280	package cf;	1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		1211	my ($self, $type, %msg) = @_;
		1212
		1213	$self->ns->ext_event ($type, %msg);
		1214	}
		1215
		1216	=head3 cf::region
		1217
		1218	=over 4
		1219
		1220	=cut
		1221
		1222	package cf::region;
		1223
		1224	=item cf::region::find_by_path $path
		1225
		1226	Tries to decuce the probable region for a map knowing only its path.
		1227
		1228	=cut
		1229
		1230	sub find_by_path($) {
		1231	my ($path) = @_;
		1232
		1233	my ($match, $specificity);
		1234
		1235	for my $region (list) {
		1236	if ($region->match && $path =~ $region->match) {
		1237	($match, $specificity) = ($region, $region->specificity)
		1238	if $region->specificity > $specificity;
		1239	}
		1240	}
		1241
		1242	$match
		1243	}
1281		1244
1282	=back	1245	=back
1283
1284		1246
1285	=head3 cf::map	1247	=head3 cf::map
1286		1248
1287	=over 4	1249	=over 4
1288		1250
…		…
1291	package cf::map;	1253	package cf::map;
1292		1254
1293	use Fcntl;	1255	use Fcntl;
1294	use Coro::AIO;	1256	use Coro::AIO;
1295		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1296	our $MAX_RESET = 3600;	1262	our $MAX_RESET = 3600;
1297	our $DEFAULT_RESET = 3000;	1263	our $DEFAULT_RESET = 3000;
1298		1264
1299	sub generate_random_map {	1265	sub generate_random_map {
1300	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1301
1302	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1303	cf::map::_create_random_map	1268	$self->_create_random_map (
1304	$path,
1305	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1306	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1307	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1308	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1309	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1310	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1311	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1312	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1313	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1277	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1314	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1315	(cf::region::find $rmp->{region})	1279	(cf::region::find $rmp->{region}), $rmp->{custom}
		1280	)
		1281	}
		1282
		1283	=item cf::map->register ($regex, $prio)
		1284
		1285	Register a handler for the map path matching the given regex at the
		1286	givne priority (higher is better, built-in handlers have priority 0, the
		1287	default).
		1288
		1289	=cut
		1290
		1291	sub register {
		1292	my (undef, $regex, $prio) = @_;
		1293	my $pkg = caller;
		1294
		1295	no strict;
		1296	push @{"$pkg\::ISA"}, __PACKAGE__;
		1297
		1298	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1299	}
		1300
		1301	# also paths starting with '/'
		1302	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1303
		1304	sub thawer_merge {
		1305	my ($self, $merge) = @_;
		1306
		1307	# we have to keep some variables in memory intact
		1308	local $self->{path};
		1309	local $self->{load_path};
		1310
		1311	$self->SUPER::thawer_merge ($merge);
		1312	}
		1313
		1314	sub normalise {
		1315	my ($path, $base) = @_;
		1316
		1317	$path = "$path"; # make sure its a string
		1318
		1319	$path =~ s/\.map$//;
		1320
		1321	# map plan:
		1322	#
		1323	# /! non-realised random map exit (special hack!)
		1324	# {... are special paths that are not being touched
		1325	# ?xxx/... are special absolute paths
		1326	# ?random/... random maps
		1327	# /... normal maps
		1328	# ~user/... per-player map of a specific user
		1329
		1330	$path =~ s/$PATH_SEP/\//go;
		1331
		1332	# treat it as relative path if it starts with
		1333	# something that looks reasonable
		1334	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1335	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1336
		1337	$base =~ s{[^/]+/?$}{};
		1338	$path = "$base/$path";
		1339	}
		1340
		1341	for ($path) {
		1342	redo if s{//}{/};
		1343	redo if s{/\.?/}{/};
		1344	redo if s{/[^/]+/\.\./}{/};
		1345	}
		1346
		1347	$path
		1348	}
		1349
		1350	sub new_from_path {
		1351	my (undef, $path, $base) = @_;
		1352
		1353	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1354
		1355	$path = normalise $path, $base;
		1356
		1357	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1358	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1359	my $self = bless cf::map::new, $pkg;
		1360	$self->{path} = $path; $self->path ($path);
		1361	$self->init; # pass $1 etc.
		1362	return $self;
		1363	}
		1364	}
		1365
		1366	Carp::carp "unable to resolve path '$path' (base '$base').";
		1367	()
		1368	}
		1369
		1370	sub init {
		1371	my ($self) = @_;
		1372
		1373	$self
		1374	}
		1375
		1376	sub as_string {
		1377	my ($self) = @_;
		1378
		1379	"$self->{path}"
		1380	}
		1381
		1382	# the displayed name, this is a one way mapping
		1383	sub visible_name {
		1384	&as_string
		1385	}
		1386
		1387	# the original (read-only) location
		1388	sub load_path {
		1389	my ($self) = @_;
		1390
		1391	"$MAPDIR/$self->{path}.map"
		1392	}
		1393
		1394	# the temporary/swap location
		1395	sub save_path {
		1396	my ($self) = @_;
		1397
		1398	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1399	"$TMPDIR/$path.map"
		1400	}
		1401
		1402	# the unique path, undef == no special unique path
		1403	sub uniq_path {
		1404	my ($self) = @_;
		1405
		1406	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1407	"$UNIQUEDIR/$path"
1316	}	1408	}
1317		1409
1318	# and all this just because we cannot iterate over	1410	# and all this just because we cannot iterate over
1319	# all maps in C++...	1411	# all maps in C++...
1320	sub change_all_map_light {	1412	sub change_all_map_light {
…		…
1322		1414
1323	$_->change_map_light ($change)	1415	$_->change_map_light ($change)
1324	for grep $_->outdoor, values %cf::MAP;	1416	for grep $_->outdoor, values %cf::MAP;
1325	}	1417	}
1326		1418
		1419	sub decay_objects {
		1420	my ($self) = @_;
		1421
		1422	return if $self->{deny_reset};
		1423
		1424	$self->do_decay_objects;
		1425	}
		1426
		1427	sub unlink_save {
		1428	my ($self) = @_;
		1429
		1430	utf8::encode (my $save = $self->save_path);
		1431	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1432	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1433	}
		1434
1327	sub try_load_header($) {	1435	sub load_header_from($) {
1328	my ($path) = @_;	1436	my ($self, $path) = @_;
1329		1437
1330	utf8::encode $path;	1438	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	1439	#aio_open $path, O_RDONLY, 0
		1440	# or return;
		1441
		1442	$self->_load_header ($path)
1332	or return;	1443	or return;
1333		1444
1334	my $map = cf::map::new	1445	$self->{load_path} = $path;
		1446
		1447	1
		1448	}
		1449
		1450	sub load_header_orig {
		1451	my ($self) = @_;
		1452
		1453	$self->load_header_from ($self->load_path)
		1454	}
		1455
		1456	sub load_header_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->load_header_from ($self->save_path)
		1460	}
		1461
		1462	sub prepare_temp {
		1463	my ($self) = @_;
		1464
		1465	$self->last_access ((delete $self->{last_access})
		1466	|| $cf::RUNTIME); #d#
		1467	# safety
		1468	$self->{instantiate_time} = $cf::RUNTIME
		1469	if $self->{instantiate_time} > $cf::RUNTIME;
		1470	}
		1471
		1472	sub prepare_orig {
		1473	my ($self) = @_;
		1474
		1475	$self->{load_original} = 1;
		1476	$self->{instantiate_time} = $cf::RUNTIME;
		1477	$self->last_access ($cf::RUNTIME);
		1478	$self->instantiate;
		1479	}
		1480
		1481	sub load_header {
		1482	my ($self) = @_;
		1483
		1484	if ($self->load_header_temp) {
		1485	$self->prepare_temp;
		1486	} else {
		1487	$self->load_header_orig
1335	or return;	1488	or return;
		1489	$self->prepare_orig;
		1490	}
1336		1491
1337	# for better error messages only, will be overwritten	1492	$self->{deny_reset} = 1
1338	$map->path ($path);	1493	if $self->no_reset;
1339		1494
1340	$map->load_header ($path)	1495	$self->default_region (cf::region::find_by_path $self->{path})
1341	or return;	1496	unless $self->default_region;
1342		1497
1343	$map->{load_path} = $path;	1498	1
1344
1345	$map
1346	}	1499	}
1347		1500
1348	sub find;	1501	sub find;
1349	sub find {	1502	sub find {
1350	my ($path, $origin) = @_;	1503	my ($path, $origin) = @_;
1351		1504
1352	#warn "find<$path,$origin>\n";#d#
1353
1354	$path = new cf::path $path, $origin && $origin->path;	1505	$path = normalise $path, $origin && $origin->path;
1355	my $key = $path->as_string;
1356		1506
1357	cf::lock_wait "map_find:$key";	1507	cf::lock_wait "map_find:$path";
1358		1508
1359	$cf::MAP{$key} || do {	1509	$cf::MAP{$path} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	1510	my $guard = cf::lock_acquire "map_find:$path";
1361		1511	my $map = new_from_path cf::map $path
1362	# do it the slow way
1363	my $map = try_load_header $path->save_path;
1364
1365	Coro::cede;
1366
1367	if ($map) {
1368	$map->last_access ((delete $map->{last_access})
1369	|| $cf::RUNTIME); #d#
1370	# safety
1371	$map->{instantiate_time} = $cf::RUNTIME
1372	if $map->{instantiate_time} > $cf::RUNTIME;
1373	} else {
1374	if (my $rmp = $path->random_map_params) {
1375	$map = generate_random_map $key, $rmp;
1376	} else {
1377	$map = try_load_header $path->load_path;
1378	}
1379
1380	$map or return;	1512	or return;
1381		1513
1382	$map->{load_original} = 1;
1383	$map->{instantiate_time} = $cf::RUNTIME;
1384	$map->last_access ($cf::RUNTIME);
1385	$map->instantiate;
1386
1387	# per-player maps become, after loading, normal maps
1388	$map->per_player (0) if $path->{user_rel};
1389	}
1390
1391	$map->path ($key);
1392	$map->{path} = $path;
1393	$map->{last_save} = $cf::RUNTIME;	1514	$map->{last_save} = $cf::RUNTIME;
1394		1515
1395	Coro::cede;	1516	$map->load_header
		1517	or return;
1396		1518
1397	if ($map->should_reset) {	1519	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1520	# doing this can freeze the server in a sync job, obviously
		1521	#$cf::WAIT_FOR_TICK->wait;
1398	$map->reset;	1522	$map->reset;
1399	undef $guard;	1523	undef $guard;
1400	$map = find $path	1524	return find $path;
1401	or return;
1402	}	1525	}
1403		1526
1404	$cf::MAP{$key} = $map	1527	$cf::MAP{$path} = $map
1405	}	1528	}
1406	}	1529	}
		1530
		1531	sub pre_load { }
		1532	sub post_load { }
1407		1533
1408	sub load {	1534	sub load {
1409	my ($self) = @_;	1535	my ($self) = @_;
1410		1536
		1537	local $self->{deny_reset} = 1; # loading can take a long time
		1538
1411	my $path = $self->{path};	1539	my $path = $self->{path};
		1540
		1541	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1542	my $guard = cf::lock_acquire "map_load:$path";
1413		1543
1414	return if $self->in_memory != cf::MAP_SWAPPED;	1544	return if $self->in_memory != cf::MAP_SWAPPED;
1415		1545
1416	$self->in_memory (cf::MAP_LOADING);	1546	$self->in_memory (cf::MAP_LOADING);
1417		1547
1418	$self->alloc;	1548	$self->alloc;
		1549
		1550	$self->pre_load;
		1551	Coro::cede;
		1552
1419	$self->load_objects ($self->{load_path}, 1)	1553	$self->_load_objects ($self->{load_path}, 1)
1420	or return;	1554	or return;
1421		1555
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};	1557	if delete $self->{load_original};
1424		1558
1425	if (my $uniq = $path->uniq_path) {	1559	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	1560	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	1561	if (aio_open $uniq, O_RDONLY, 0) {
1428	$self->clear_unique_items;	1562	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	1563	$self->_load_objects ($uniq, 0);
1430	}	1564	}
1431	}	1565	}
1432		1566
1433	Coro::cede;	1567	Coro::cede;
1434
1435	# now do the right thing for maps	1568	# now do the right thing for maps
1436	$self->link_multipart_objects;	1569	$self->link_multipart_objects;
1437
1438	if ($self->{path}->is_style_map) {
1439	$self->{deny_save} = 1;
1440	$self->{deny_reset} = 1;
1441	} else {
1442	$self->fix_auto_apply;
1443	$self->decay_objects;
1444	$self->update_buttons;
1445	$self->set_darkness_map;
1446	$self->difficulty ($self->estimate_difficulty)	1570	$self->difficulty ($self->estimate_difficulty)
1447	unless $self->difficulty;	1571	unless $self->difficulty;
		1572	Coro::cede;
		1573
		1574	unless ($self->{deny_activate}) {
		1575	$self->decay_objects;
		1576	$self->fix_auto_apply;
		1577	$self->update_buttons;
		1578	Coro::cede;
		1579	$self->set_darkness_map;
		1580	Coro::cede;
1448	$self->activate;	1581	$self->activate;
1449	}	1582	}
1450		1583
1451	Coro::cede;
1452
1453	$self->in_memory (cf::MAP_IN_MEMORY);	1584	$self->in_memory (cf::MAP_IN_MEMORY);
		1585	}
		1586
		1587	$self->post_load;
		1588	}
		1589
		1590	sub customise_for {
		1591	my ($self, $ob) = @_;
		1592
		1593	return find "~" . $ob->name . "/" . $self->{path}
		1594	if $self->per_player;
		1595
		1596	# return find "?party/" . $ob->name . "/" . $self->{path}
		1597	# if $self->per_party;
		1598
		1599	$self
		1600	}
		1601
		1602	# find and load all maps in the 3x3 area around a map
		1603	sub load_diag {
		1604	my ($map) = @_;
		1605
		1606	my @diag; # diagonal neighbours
		1607
		1608	for (0 .. 3) {
		1609	my $neigh = $map->tile_path ($_)
		1610	or next;
		1611	$neigh = find $neigh, $map
		1612	or next;
		1613	$neigh->load;
		1614
		1615	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1616	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1617	}
		1618
		1619	for (@diag) {
		1620	my $neigh = find @$_
		1621	or next;
		1622	$neigh->load;
		1623	}
1454	}	1624	}
1455		1625
1456	sub find_sync {	1626	sub find_sync {
1457	my ($path, $origin) = @_;	1627	my ($path, $origin) = @_;
1458		1628
1459	cf::sync_job { cf::map::find $path, $origin }	1629	cf::sync_job { find $path, $origin }
1460	}	1630	}
1461		1631
1462	sub do_load_sync {	1632	sub do_load_sync {
1463	my ($map) = @_;	1633	my ($map) = @_;
1464		1634
1465	cf::sync_job { $map->load };	1635	cf::sync_job { $map->load };
1466	}	1636	}
1467		1637
		1638	our %MAP_PREFETCH;
		1639	our $MAP_PREFETCHER = undef;
		1640
		1641	sub find_async {
		1642	my ($path, $origin) = @_;
		1643
		1644	$path = normalise $path, $origin && $origin->{path};
		1645
		1646	if (my $map = $cf::MAP{$path}) {
		1647	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1648	}
		1649
		1650	undef $MAP_PREFETCH{$path};
		1651	$MAP_PREFETCHER ||= cf::async {
		1652	while (%MAP_PREFETCH) {
		1653	for my $path (keys %MAP_PREFETCH) {
		1654	my $map = find $path
		1655	or next;
		1656	$map->load;
		1657
		1658	delete $MAP_PREFETCH{$path};
		1659	}
		1660	}
		1661	undef $MAP_PREFETCHER;
		1662	};
		1663	$MAP_PREFETCHER->prio (6);
		1664
		1665	()
		1666	}
		1667
1468	sub save {	1668	sub save {
1469	my ($self) = @_;	1669	my ($self) = @_;
1470		1670
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	1671	my $lock = cf::lock_acquire "map_data:" . $self->path;
1472		1672
1473	$self->{last_save} = $cf::RUNTIME;	1673	$self->{last_save} = $cf::RUNTIME;
1474		1674
1475	return unless $self->dirty;	1675	return unless $self->dirty;
1476		1676
1477	my $save = $self->{path}->save_path; utf8::encode $save;	1677	my $save = $self->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
1479		1679
1480	$self->{load_path} = $save;	1680	$self->{load_path} = $save;
1481		1681
1482	return if $self->{deny_save};	1682	return if $self->{deny_save};
1483		1683
…		…
1486	cf::async {	1686	cf::async {
1487	$_->contr->save for $self->players;	1687	$_->contr->save for $self->players;
1488	};	1688	};
1489		1689
1490	if ($uniq) {	1690	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1691	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);	1692	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {	1693	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1694	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}	1695	}
1496	}	1696	}
1497		1697
1498	sub swap_out {	1698	sub swap_out {
1499	my ($self) = @_;	1699	my ($self) = @_;
…		…
1513		1713
1514	sub reset_at {	1714	sub reset_at {
1515	my ($self) = @_;	1715	my ($self) = @_;
1516		1716
1517	# TODO: safety, remove and allow resettable per-player maps	1717	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};
1519	return 1e99 if $self->{deny_reset};	1718	return 1e99 if $self->{deny_reset};
1520		1719
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1720	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1721	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		1722
…		…
1528	my ($self) = @_;	1727	my ($self) = @_;
1529		1728
1530	$self->reset_at <= $cf::RUNTIME	1729	$self->reset_at <= $cf::RUNTIME
1531	}	1730	}
1532		1731
1533	sub unlink_save {
1534	my ($self) = @_;
1535
1536	utf8::encode (my $save = $self->{path}->save_path);
1537	aioreq_pri 3; IO::AIO::aio_unlink $save;
1538	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1539	}
1540
1541	sub rename {
1542	my ($self, $new_path) = @_;
1543
1544	$self->unlink_save;
1545
1546	delete $cf::MAP{$self->path};
1547	$self->{path} = new cf::path $new_path;
1548	$self->path ($self->{path}->as_string);
1549	$cf::MAP{$self->path} = $self;
1550
1551	$self->save;
1552	}
1553
1554	sub reset {	1732	sub reset {
1555	my ($self) = @_;	1733	my ($self) = @_;
1556		1734
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	1735	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		1736
1559	return if $self->players;	1737	return if $self->players;
1560	return if $self->{path}{user_rel};#d#
1561		1738
1562	warn "resetting map ", $self->path;#d#	1739	warn "resetting map ", $self->path;
		1740
		1741	$self->in_memory (cf::MAP_SWAPPED);
		1742
		1743	# need to save uniques path
		1744	unless ($self->{deny_save}) {
		1745	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1746
		1747	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1748	if $uniq;
		1749	}
1563		1750
1564	delete $cf::MAP{$self->path};	1751	delete $cf::MAP{$self->path};
		1752
		1753	$self->clear;
1565		1754
1566	$_->clear_links_to ($self) for values %cf::MAP;	1755	$_->clear_links_to ($self) for values %cf::MAP;
1567		1756
1568	$self->unlink_save;	1757	$self->unlink_save;
1569	$self->destroy;	1758	$self->destroy;
…		…
1572	my $nuke_counter = "aaaa";	1761	my $nuke_counter = "aaaa";
1573		1762
1574	sub nuke {	1763	sub nuke {
1575	my ($self) = @_;	1764	my ($self) = @_;
1576		1765
		1766	delete $cf::MAP{$self->path};
		1767
		1768	$self->unlink_save;
		1769
		1770	bless $self, "cf::map";
		1771	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	1772	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	1773	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1775
		1776	$cf::MAP{$self->path} = $self;
		1777
1580	$self->reset; # polite request, might not happen	1778	$self->reset; # polite request, might not happen
1581	}	1779	}
1582		1780
1583	sub customise_for {	1781	=item cf::map::unique_maps
1584	my ($map, $ob) = @_;
1585		1782
1586	if ($map->per_player) {	1783	Returns an arrayref of paths of all shared maps that have
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1784	instantiated unique items. May block.
1588	}
1589		1785
1590	$map	1786	=cut
1591	}
1592		1787
1593	sub emergency_save {	1788	sub unique_maps() {
1594	my $freeze_guard = cf::freeze_mainloop;	1789	my $files = aio_readdir $UNIQUEDIR
		1790	or return;
1595		1791
1596	warn "enter emergency perl save\n";	1792	my @paths;
1597		1793
1598	cf::sync_job {	1794	for (@$files) {
1599	warn "begin emergency player save\n";	1795	utf8::decode $_;
1600	$_->save for values %cf::PLAYER;	1796	next if /\.pst$/;
1601	warn "end emergency player save\n";	1797	next unless /^$PATH_SEP/o;
1602		1798
1603	warn "begin emergency map save\n";	1799	push @paths, cf::map::normalise $_;
1604	$_->save for values %cf::MAP;
1605	warn "end emergency map save\n";
1606	};	1800	}
1607		1801
1608	warn "leave emergency perl save\n";	1802	\@paths
1609	}	1803	}
1610		1804
1611	package cf;	1805	package cf;
1612		1806
1613	=back	1807	=back
1614		1808
		1809	=head3 cf::object
		1810
		1811	=cut
		1812
		1813	package cf::object;
		1814
		1815	=over 4
		1816
		1817	=item $ob->inv_recursive
		1818
		1819	Returns the inventory of the object _and_ their inventories, recursively.
		1820
		1821	=cut
		1822
		1823	sub inv_recursive_;
		1824	sub inv_recursive_ {
		1825	map { $_, inv_recursive_ $_->inv } @_
		1826	}
		1827
		1828	sub inv_recursive {
		1829	inv_recursive_ inv $_[0]
		1830	}
		1831
		1832	package cf;
		1833
		1834	=back
1615		1835
1616	=head3 cf::object::player	1836	=head3 cf::object::player
1617		1837
1618	=over 4	1838	=over 4
1619		1839
…		…
1659		1879
1660	=item $player_object->enter_link	1880	=item $player_object->enter_link
1661		1881
1662	Freezes the player and moves him/her to a special map (C<{link}>).	1882	Freezes the player and moves him/her to a special map (C<{link}>).
1663		1883
1664	The player should be reaosnably safe there for short amounts of time. You	1884	The player should be reasonably safe there for short amounts of time. You
1665	I<MUST> call C<leave_link> as soon as possible, though.	1885	I<MUST> call C<leave_link> as soon as possible, though.
1666		1886
		1887	Will never block.
		1888
1667	=item $player_object->leave_link ($map, $x, $y)	1889	=item $player_object->leave_link ($map, $x, $y)
1668		1890
1669	Moves the player out of the specila link map onto the given map. If the	1891	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	1892	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	1893	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	1894	fails, to the emergency map position.
1673		1895
1674	Might block.	1896	Might block.
1675		1897
1676	=cut	1898	=cut
		1899
		1900	sub link_map {
		1901	unless ($LINK_MAP) {
		1902	$LINK_MAP = cf::map::find "{link}"
		1903	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1904	$LINK_MAP->load;
		1905	}
		1906
		1907	$LINK_MAP
		1908	}
1677		1909
1678	sub cf::object::player::enter_link {	1910	sub cf::object::player::enter_link {
1679	my ($self) = @_;	1911	my ($self) = @_;
1680		1912
1681	$self->deactivate_recursive;	1913	$self->deactivate_recursive;
1682		1914
1683	return if $self->map == $LINK_MAP;	1915	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		1916
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1917	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	1918	if $self->map && $self->map->{path} ne "{link}";
1687		1919
1688	$self->enter_map ($LINK_MAP, 20, 20);	1920	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1689	}	1921	}
1690		1922
1691	sub cf::object::player::leave_link {	1923	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	1924	my ($self, $map, $x, $y) = @_;
		1925
		1926	return unless $self->contr->active;
1693		1927
1694	my $link_pos = delete $self->{_link_pos};	1928	my $link_pos = delete $self->{_link_pos};
1695		1929
1696	unless ($map) {	1930	unless ($map) {
1697	# restore original map position	1931	# restore original map position
…		…
1711	# use -1 or undef as default coordinates, not 0, 0	1945	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	1946	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	1947	if $x <=0 && $y <= 0;
1714		1948
1715	$map->load;	1949	$map->load;
		1950	$map->load_diag;
1716		1951
1717	return unless $self->contr->active;	1952	return unless $self->contr->active;
1718	$self->activate_recursive;	1953	$self->activate_recursive;
		1954
		1955	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1719	$self->enter_map ($map, $x, $y);	1956	$self->enter_map ($map, $x, $y);
1720	}	1957	}
1721		1958
1722	cf::player->attach (
1723	on_logout => sub {
1724	my ($pl) = @_;
1725
1726	# abort map switching before logout
1727	if ($pl->ob->{_link_pos}) {
1728	cf::sync_job {
1729	$pl->ob->leave_link
1730	};
1731	}
1732	},
1733	on_login => sub {
1734	my ($pl) = @_;
1735
1736	# try to abort aborted map switching on player login :)
1737	# should happen only on crashes
1738	if ($pl->ob->{_link_pos}) {
1739	$pl->ob->enter_link;
1740	(async {
1741	# we need this sleep as the login has a concurrent enter_exit running
1742	# and this sleep increases chances of the player not ending up in scorn
1743	$pl->ob->reply (undef,
1744	"There was an internal problem at your last logout, "
1745	. "the server will try to bring you to your intended destination in a second.",
1746	cf::NDI_RED);
1747	Coro::Timer::sleep 1;
1748	$pl->ob->leave_link;
1749	})->prio (2);
1750	}
1751	},
1752	);
1753
1754	=item $player_object->goto ($path, $x, $y)	1959	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1755		1960
		1961	Moves the player to the given map-path and coordinates by first freezing
		1962	her, loading and preparing them map, calling the provided $check callback
		1963	that has to return the map if sucecssful, and then unfreezes the player on
		1964	the new (success) or old (failed) map position.
		1965
1756	=cut	1966	=cut
		1967
		1968	our $GOTOGEN;
1757		1969
1758	sub cf::object::player::goto {	1970	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	1971	my ($self, $path, $x, $y, $check) = @_;
1760		1972
1761	$path = new cf::path $path;	1973	# do generation counting so two concurrent goto's will be executed in-order
1762	$path ne "/" or Carp::cluck ("oy");#d#	1974	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		1975
1764	$self->enter_link;	1976	$self->enter_link;
1765		1977
1766	(async {	1978	(async {
		1979	my $map = eval {
1767	my $map = cf::map::find $path->as_string;	1980	my $map = cf::map::find $path;
		1981
		1982	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	1983	$map = $map->customise_for ($self);
1769		1984	$map = $check->($map) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	1985	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1986	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1987	}
1774		1988
		1989	$map
		1990	};
		1991
		1992	if ($@) {
		1993	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1994	LOG llevError | logBacktrace, Carp::longmess $@;
		1995	}
		1996
		1997	if ($gen == $self->{_goto_generation}) {
		1998	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	1999	$self->leave_link ($map, $x, $y);
		2000	}
1776	})->prio (1);	2001	})->prio (1);
1777	}	2002	}
1778		2003
1779	=item $player_object->enter_exit ($exit_object)	2004	=item $player_object->enter_exit ($exit_object)
1780		2005
…		…
1782		2007
1783	sub parse_random_map_params {	2008	sub parse_random_map_params {
1784	my ($spec) = @_;	2009	my ($spec) = @_;
1785		2010
1786	my $rmp = { # defaults	2011	my $rmp = { # defaults
1787	xsize => 10,	2012	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2013	ysize => (cf::rndm 15, 40),
		2014	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2015	#layout => string,
1789	};	2016	};
1790		2017
1791	for (split /\n/, $spec) {	2018	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2019	my ($k, $v) = split /\s+/, $_, 2;
1793		2020
…		…
1797	$rmp	2024	$rmp
1798	}	2025	}
1799		2026
1800	sub prepare_random_map {	2027	sub prepare_random_map {
1801	my ($exit) = @_;	2028	my ($exit) = @_;
		2029
		2030	my $guard = cf::lock_acquire "exit_prepare:$exit";
1802		2031
1803	# all this does is basically replace the /! path by	2032	# all this does is basically replace the /! path by
1804	# a new random map path (?random/...) with a seed	2033	# a new random map path (?random/...) with a seed
1805	# that depends on the exit object	2034	# that depends on the exit object
1806		2035
1807	my $rmp = parse_random_map_params $exit->msg;	2036	my $rmp = parse_random_map_params $exit->msg;
1808		2037
1809	if ($exit->map) {	2038	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2039	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2040	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2041	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2042	$rmp->{origin_y} = $exit->y;
1814	}	2043	}
1815		2044
1816	$rmp->{random_seed} ||= $exit->random_seed;	2045	$rmp->{random_seed} ||= $exit->random_seed;
1817		2046
1818	my $data = cf::to_json $rmp;	2047	my $data = cf::to_json $rmp;
1819	my $md5 = Digest::MD5::md5_hex $data;	2048	my $md5 = Digest::MD5::md5_hex $data;
		2049	my $meta = "$RANDOMDIR/$md5.meta";
1820		2050
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2051	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2052	aio_write $fh, 0, (length $data), $data, 0;
		2053	undef $fh;
		2054	aio_rename "$meta~", $meta;
1823		2055
1824	$exit->slaying ("?random/$md5");	2056	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2057	$exit->msg (undef);
1826	}	2058	}
1827	}	2059	}
1828		2060
1829	sub cf::object::player::enter_exit {	2061	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2062	my ($self, $exit) = @_;
1831		2063
1832	return unless $self->type == cf::PLAYER;	2064	return unless $self->type == cf::PLAYER;
		2065
		2066	if ($exit->slaying eq "/!") {
		2067	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2068	# the problem is that $exit might not survive long enough
		2069	# so it needs to be done right now, right here
		2070	cf::sync_job { prepare_random_map $exit };
		2071	}
		2072
		2073	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2074	my $hp = $exit->stats->hp;
		2075	my $sp = $exit->stats->sp;
1833		2076
1834	$self->enter_link;	2077	$self->enter_link;
1835		2078
1836	(async {	2079	(async {
1837	$self->deactivate_recursive; # just to be sure	2080	$self->deactivate_recursive; # just to be sure
1838	unless (eval {	2081	unless (eval {
1839	prepare_random_map $exit	2082	$self->goto ($slaying, $hp, $sp);
1840	if $exit->slaying eq "/!";
1841
1842	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1843	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1844		2083
1845	1;	2084	1;
1846	}) {	2085	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2086	$self->message ("Something went wrong deep within the crossfire server. "
1848	. "I'll try to bring you back to the map you were before. "	2087	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2088	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2089	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2090
1852	warn "ERROR in enter_exit: $@";	2091	warn "ERROR in enter_exit: $@";
1853	$self->leave_link;	2092	$self->leave_link;
1854	}	2093	}
1855	})->prio (1);	2094	})->prio (1);
…		…
1868		2107
1869	sub cf::client::send_drawinfo {	2108	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2109	my ($self, $text, $flags) = @_;
1871		2110
1872	utf8::encode $text;	2111	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2112	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2113	}
1875		2114
		2115	=item $client->ext_event ($type, %msg)
		2116
		2117	Sends an exti event to the client.
		2118
		2119	=cut
		2120
		2121	sub cf::client::ext_event($$%) {
		2122	my ($self, $type, %msg) = @_;
		2123
		2124	$msg{msgtype} = "event_$type";
		2125	$self->send_packet ("ext " . cf::to_json \%msg);
		2126	}
1876		2127
1877	=item $success = $client->query ($flags, "text", \&cb)	2128	=item $success = $client->query ($flags, "text", \&cb)
1878		2129
1879	Queues a query to the client, calling the given callback with	2130	Queues a query to the client, calling the given callback with
1880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2131	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1909	# get handled first	2160	# get handled first
1910	my $queue = delete $ns->{query_queue}	2161	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	2162	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		2163
1913	(shift @$queue)->[1]->($msg);	2164	(shift @$queue)->[1]->($msg);
		2165	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		2166
1915	push @{ $ns->{query_queue} }, @$queue;	2167	push @{ $ns->{query_queue} }, @$queue;
1916		2168
1917	if (@{ $ns->{query_queue} } == @$queue) {	2169	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	2170	if (@$queue) {
…		…
1976		2228
1977	# here we export the classes and methods available to script code	2229	# here we export the classes and methods available to script code
1978		2230
1979	=pod	2231	=pod
1980		2232
1981	The following fucntions and emthods are available within a safe environment:	2233	The following functions and methods are available within a safe environment:
1982		2234
1983	cf::object contr pay_amount pay_player map	2235	cf::object contr pay_amount pay_player map
1984	cf::object::player player	2236	cf::object::player player
1985	cf::player peaceful	2237	cf::player peaceful
1986	cf::map trigger	2238	cf::map trigger
…		…
2071	#############################################################################	2323	#############################################################################
2072		2324
2073	=head2 EXTENSION DATABASE SUPPORT	2325	=head2 EXTENSION DATABASE SUPPORT
2074		2326
2075	Crossfire maintains a very simple database for extension use. It can	2327	Crossfire maintains a very simple database for extension use. It can
2076	currently store anything that can be serialised using Storable, which	2328	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2077	excludes objects.	2329	convert to/from binary).
2078		2330
2079	The parameter C<$family> should best start with the name of the extension	2331	The parameter C<$family> should best start with the name of the extension
2080	using it, it should be unique.	2332	using it, it should be unique.
2081		2333
2082	=over 4	2334	=over 4
2083		2335
2084	=item $hashref = cf::db_get $family
2085
2086	Return a hashref for use by the extension C<$family>, which can be
2087	modified. After modifications, you have to call C<cf::db_dirty> or
2088	C<cf::db_sync>.
2089
2090	=item $value = cf::db_get $family => $key	2336	=item $value = cf::db_get $family => $key
2091		2337
2092	Returns a single value from the database	2338	Returns a single value from the database.
2093
2094	=item cf::db_put $family => $hashref
2095
2096	Stores the given family hashref into the database. Updates are delayed, if
2097	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2098		2339
2099	=item cf::db_put $family => $key => $value	2340	=item cf::db_put $family => $key => $value
2100		2341
2101	Stores the given C<$value> in the family hash. Updates are delayed, if you	2342	Stores the given C<$value> in the family.
2102	want the data to be synced to disk immediately, use C<cf::db_sync>.
2103
2104	=item cf::db_dirty
2105
2106	Marks the database as dirty, to be updated at a later time.
2107
2108	=item cf::db_sync
2109
2110	Immediately write the database to disk I<if it is dirty>.
2111		2343
2112	=cut	2344	=cut
2113		2345
2114	our $DB;	2346	our $DB;
2115		2347
2116	{	2348	sub db_init {
2117	my $path = cf::localdir . "/database.pst";	2349	unless ($DB) {
		2350	$DB = BDB::db_create $DB_ENV;
2118		2351
2119	sub db_load() {	2352	cf::sync_job {
2120	$DB = stat $path ? Storable::retrieve $path : { };	2353	eval {
2121	}	2354	$DB->set_flags (BDB::CHKSUM);
2122		2355
2123	my $pid;	2356	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2124		2357	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2125	sub db_save() {	2358	cf::cleanup "db_open(db): $!" if $!;
2126	waitpid $pid, 0 if $pid;	2359	};
2127	if (0 == ($pid = fork)) {	2360	cf::cleanup "db_open(db): $@" if $@;
2128	$DB->{_meta}{version} = 1;
2129	Storable::nstore $DB, "$path~";
2130	rename "$path~", $path;
2131	cf::_exit 0 if defined $pid;
2132	}	2361	};
2133	}
2134
2135	my $dirty;
2136
2137	sub db_sync() {
2138	db_save if $dirty;
2139	undef $dirty;
2140	}
2141
2142	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2143	db_sync;
2144	});	2362	}
		2363	}
2145		2364
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}
2150
2151	sub db_get($;$) {	2365	sub db_get($$) {
2152	@_ >= 2	2366	my $key = "$_[0]/$_[1]";
2153	? $DB->{$_[0]}{$_[1]}
2154	: ($DB->{$_[0]} ||= { })
2155	}
2156		2367
		2368	cf::sync_job {
		2369	BDB::db_get $DB, undef, $key, my $data;
		2370
		2371	$! ? ()
		2372	: $data
		2373	}
		2374	}
		2375
2157	sub db_put($$;$) {	2376	sub db_put($$$) {
2158	if (@_ >= 3) {	2377	BDB::dbreq_pri 4;
2159	$DB->{$_[0]}{$_[1]} = $_[2];	2378	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2160	} else {	2379	}
2161	$DB->{$_[0]} = $_[1];
2162	}
2163	db_dirty;
2164	}
2165		2380
2166	cf::global->attach (	2381	=item cf::cache $id => [$paths...], $processversion => $process
2167	prio => 10000,	2382
2168	on_cleanup => sub {	2383	Generic caching function that returns the value of the resource $id,
2169	db_sync;	2384	caching and regenerating as required.
		2385
		2386	This function can block.
		2387
		2388	=cut
		2389
		2390	sub cache {
		2391	my ($id, $src, $processversion, $process) = @_;
		2392
		2393	my $meta =
		2394	join "\x00",
		2395	$processversion,
		2396	map {
		2397	aio_stat $_
		2398	and Carp::croak "$_: $!";
		2399
		2400	($_, (stat _)[7,9])
		2401	} @$src;
		2402
		2403	my $dbmeta = db_get cache => "$id/meta";
		2404	if ($dbmeta ne $meta) {
		2405	# changed, we may need to process
		2406
		2407	my @data;
		2408	my $md5;
		2409
		2410	for (0 .. $#$src) {
		2411	0 <= aio_load $src->[$_], $data[$_]
		2412	or Carp::croak "$src->[$_]: $!";
2170	},	2413	}
2171	);	2414
		2415	# if processing is expensive, check
		2416	# checksum first
		2417	if (1) {
		2418	$md5 =
		2419	join "\x00",
		2420	$processversion,
		2421	map {
		2422	Coro::cede;
		2423	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2424	} 0.. $#$src;
		2425
		2426
		2427	my $dbmd5 = db_get cache => "$id/md5";
		2428	if ($dbmd5 eq $md5) {
		2429	db_put cache => "$id/meta", $meta;
		2430
		2431	return db_get cache => "$id/data";
		2432	}
		2433	}
		2434
		2435	my $t1 = Time::HiRes::time;
		2436	my $data = $process->(\@data);
		2437	my $t2 = Time::HiRes::time;
		2438
		2439	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2440
		2441	db_put cache => "$id/data", $data;
		2442	db_put cache => "$id/md5" , $md5;
		2443	db_put cache => "$id/meta", $meta;
		2444
		2445	return $data;
		2446	}
		2447
		2448	db_get cache => "$id/data"
		2449	}
		2450
		2451	=item fork_call { }, $args
		2452
		2453	Executes the given code block with the given arguments in a seperate
		2454	process, returning the results. Everything must be serialisable with
		2455	Coro::Storable. May, of course, block. Note that the executed sub may
		2456	never block itself or use any form of Event handling.
		2457
		2458	=cut
		2459
		2460	sub fork_call(&@) {
		2461	my ($cb, @args) = @_;
		2462
		2463	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2464	# or die "socketpair: $!";
		2465	pipe my $fh1, my $fh2
		2466	or die "pipe: $!";
		2467
		2468	if (my $pid = fork) {
		2469	close $fh2;
		2470
		2471	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2472	$res = Coro::Storable::thaw $res;
		2473
		2474	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2475
		2476	die $$res unless "ARRAY" eq ref $res;
		2477
		2478	return wantarray ? @$res : $res->[-1];
		2479	} else {
		2480	reset_signals;
		2481	local $SIG{__WARN__};
		2482	local $SIG{__DIE__};
		2483	eval {
		2484	close $fh1;
		2485
		2486	my @res = eval { $cb->(@args) };
		2487	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2488	};
		2489
		2490	warn $@ if $@;
		2491	_exit 0;
		2492	}
2172	}	2493	}
2173		2494
2174	#############################################################################	2495	#############################################################################
2175	# the server's main()	2496	# the server's init and main functions
		2497
		2498	sub load_facedata($) {
		2499	my ($path) = @_;
		2500
		2501	warn "loading facedata from $path\n";
		2502
		2503	my $facedata;
		2504	0 < aio_load $path, $facedata
		2505	or die "$path: $!";
		2506
		2507	$facedata = Coro::Storable::thaw $facedata;
		2508
		2509	$facedata->{version} == 2
		2510	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2511
		2512	{
		2513	my $faces = $facedata->{faceinfo};
		2514
		2515	while (my ($face, $info) = each %$faces) {
		2516	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2517	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2518	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2519	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2520	Coro::cede;
		2521	}
		2522
		2523	while (my ($face, $info) = each %$faces) {
		2524	next unless $info->{smooth};
		2525	my $idx = cf::face::find $face
		2526	or next;
		2527	if (my $smooth = cf::face::find $info->{smooth}) {
		2528	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2529	} else {
		2530	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2531	}
		2532	Coro::cede;
		2533	}
		2534	}
		2535
		2536	{
		2537	my $anims = $facedata->{animinfo};
		2538
		2539	while (my ($anim, $info) = each %$anims) {
		2540	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2541	Coro::cede;
		2542	}
		2543
		2544	cf::anim::invalidate_all; # d'oh
		2545	}
		2546
		2547	1
		2548	}
		2549
		2550	sub reload_regions {
		2551	load_resource_file "$MAPDIR/regions"
		2552	or die "unable to load regions file\n";
		2553	}
		2554
		2555	sub reload_facedata {
		2556	load_facedata "$DATADIR/facedata"
		2557	or die "unable to load facedata\n";
		2558	}
		2559
		2560	sub reload_archetypes {
		2561	load_resource_file "$DATADIR/archetypes"
		2562	or die "unable to load archetypes\n";
		2563	}
		2564
		2565	sub reload_treasures {
		2566	load_resource_file "$DATADIR/treasures"
		2567	or die "unable to load treasurelists\n";
		2568	}
		2569
		2570	sub reload_resources {
		2571	warn "reloading resource files...\n";
		2572
		2573	reload_regions;
		2574	reload_facedata;
		2575	#reload_archetypes;#d#
		2576	reload_archetypes;
		2577	reload_treasures;
		2578
		2579	warn "finished reloading resource files\n";
		2580	}
		2581
		2582	sub init {
		2583	reload_resources;
		2584	}
2176		2585
2177	sub cfg_load {	2586	sub cfg_load {
2178	open my $fh, "<:utf8", cf::confdir . "/config"	2587	open my $fh, "<:utf8", "$CONFDIR/config"
2179	or return;	2588	or return;
2180		2589
2181	local $/;	2590	local $/;
2182	*CFG = YAML::Syck::Load <$fh>;	2591	*CFG = YAML::Syck::Load <$fh>;
2183		2592
…		…
2197		2606
2198	sub main {	2607	sub main {
2199	# we must not ever block the main coroutine	2608	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	2609	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2610	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2611	(async {
2202	async { Event::one_event };	2612	Event::one_event;
		2613	})->prio (Coro::PRIO_MAX);
2203	};	2614	};
2204		2615
2205	cfg_load;	2616	cfg_load;
2206	db_load;	2617	db_init;
2207	load_extensions;	2618	load_extensions;
		2619
		2620	$TICK_WATCHER->start;
2208	Event::loop;	2621	Event::loop;
2209	}	2622	}
2210		2623
2211	#############################################################################	2624	#############################################################################
2212	# initialisation	2625	# initialisation and cleanup
2213		2626
		2627	# install some emergency cleanup handlers
		2628	BEGIN {
		2629	for my $signal (qw(INT HUP TERM)) {
		2630	Event->signal (
		2631	reentrant => 0,
		2632	data => WF_AUTOCANCEL,
		2633	signal => $signal,
		2634	prio => 0,
		2635	cb => sub {
		2636	cf::cleanup "SIG$signal";
		2637	},
		2638	);
		2639	}
		2640	}
		2641
		2642	sub emergency_save() {
		2643	my $freeze_guard = cf::freeze_mainloop;
		2644
		2645	warn "enter emergency perl save\n";
		2646
		2647	cf::sync_job {
		2648	# use a peculiar iteration method to avoid tripping on perl
		2649	# refcount bugs in for. also avoids problems with players
		2650	# and maps saved/destroyed asynchronously.
		2651	warn "begin emergency player save\n";
		2652	for my $login (keys %cf::PLAYER) {
		2653	my $pl = $cf::PLAYER{$login} or next;
		2654	$pl->valid or next;
		2655	$pl->save;
		2656	}
		2657	warn "end emergency player save\n";
		2658
		2659	warn "begin emergency map save\n";
		2660	for my $path (keys %cf::MAP) {
		2661	my $map = $cf::MAP{$path} or next;
		2662	$map->valid or next;
		2663	$map->save;
		2664	}
		2665	warn "end emergency map save\n";
		2666
		2667	warn "begin emergency database checkpoint\n";
		2668	BDB::db_env_txn_checkpoint $DB_ENV;
		2669	warn "end emergency database checkpoint\n";
		2670	};
		2671
		2672	warn "leave emergency perl save\n";
		2673	}
		2674
		2675	sub post_cleanup {
		2676	my ($make_core) = @_;
		2677
		2678	warn Carp::longmess "post_cleanup backtrace"
		2679	if $make_core;
		2680	}
		2681
2214	sub reload() {	2682	sub do_reload_perl() {
2215	# can/must only be called in main	2683	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	2684	if ($Coro::current != $Coro::main) {
2217	warn "can only reload from main coroutine\n";	2685	warn "can only reload from main coroutine";
2218	return;	2686	return;
2219	}	2687	}
2220		2688
2221	warn "reloading...";	2689	warn "reloading...";
2222		2690
2223	my $guard = freeze_mainloop;	2691	warn "entering sync_job";
		2692
		2693	cf::sync_job {
		2694	cf::write_runtime; # external watchdog should not bark
2224	cf::emergency_save;	2695	cf::emergency_save;
		2696	cf::write_runtime; # external watchdog should not bark
2225		2697
2226	eval {	2698	warn "syncing database to disk";
		2699	BDB::db_env_txn_checkpoint $DB_ENV;
		2700
2227	# if anything goes wrong in here, we should simply crash as we already saved	2701	# if anything goes wrong in here, we should simply crash as we already saved
2228		2702
2229	# cancel all watchers	2703	warn "cancelling all WF_AUTOCANCEL watchers";
2230	for (Event::all_watchers) {	2704	for (Event::all_watchers) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;	2705	$_->cancel if $_->data & WF_AUTOCANCEL;
2232	}	2706	}
2233		2707
		2708	warn "flushing outstanding aio requests";
		2709	for (;;) {
		2710	BDB::flush;
		2711	IO::AIO::flush;
		2712	Coro::cede;
		2713	last unless IO::AIO::nreqs || BDB::nreqs;
		2714	warn "iterate...";
		2715	}
		2716
		2717	++$RELOAD;
		2718
2234	# cancel all extension coros	2719	warn "cancelling all extension coros";
2235	$_->cancel for values %EXT_CORO;	2720	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	2721	%EXT_CORO = ();
2237		2722
2238	# unload all extensions	2723	warn "removing commands";
2239	for (@exts) {	2724	%COMMAND = ();
		2725
		2726	warn "removing ext commands";
		2727	%EXTCMD = ();
		2728
		2729	warn "unloading/nuking all extensions";
		2730	for my $pkg (@EXTS) {
2240	warn "unloading <$_>";	2731	warn "... unloading $pkg";
2241	unload_extension $_;	2732
		2733	if (my $cb = $pkg->can ("unload")) {
		2734	eval {
		2735	$cb->($pkg);
		2736	1
		2737	} or warn "$pkg unloaded, but with errors: $@";
2242	}	2738	}
2243		2739
		2740	warn "... nuking $pkg";
		2741	Symbol::delete_package $pkg;
		2742	}
		2743
2244	# unload all modules loaded from $LIBDIR	2744	warn "unloading all perl modules loaded from $LIBDIR";
2245	while (my ($k, $v) = each %INC) {	2745	while (my ($k, $v) = each %INC) {
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2746	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2247		2747
2248	warn "removing <$k>";	2748	warn "... unloading $k";
2249	delete $INC{$k};	2749	delete $INC{$k};
2250		2750
2251	$k =~ s/\.pm$//;	2751	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;	2752	$k =~ s/\//::/g;
2253		2753
…		…
2256	}	2756	}
2257		2757
2258	Symbol::delete_package $k;	2758	Symbol::delete_package $k;
2259	}	2759	}
2260		2760
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	2761	warn "getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	2762	Symbol::delete_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2763	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		2764
2269	# remove register_script_function callbacks
2270	# TODO
2271
2272	# unload cf.pm "a bit"	2765	warn "unloading cf.pm \"a bit\"";
2273	delete $INC{"cf.pm"};	2766	delete $INC{"cf.pm"};
		2767	delete $INC{"cf/pod.pm"};
2274		2768
2275	# don't, removes xs symbols, too,	2769	# don't, removes xs symbols, too,
2276	# and global variables created in xs	2770	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	2771	#Symbol::delete_package __PACKAGE__;
2278		2772
2279	# reload cf.pm	2773	warn "unload completed, starting to reload now";
		2774
2280	warn "reloading cf.pm";	2775	warn "reloading cf.pm";
2281	require cf;	2776	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2777	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2283		2778
2284	# load config and database again	2779	warn "loading config and database again";
2285	cf::cfg_load;	2780	cf::cfg_load;
2286	cf::db_load;
2287		2781
2288	# load extensions
2289	warn "load extensions";	2782	warn "loading extensions";
2290	cf::load_extensions;	2783	cf::load_extensions;
2291		2784
2292	# reattach attachments to objects	2785	warn "reattaching attachments to objects/players";
2293	warn "reattach";	2786	_global_reattach; # objects, sockets
2294	_global_reattach;	2787	warn "reattaching attachments to maps";
2295	reattach $_ for values %MAP;	2788	reattach $_ for values %MAP;
2296	};	2789	warn "reattaching attachments to players";
		2790	reattach $_ for values %PLAYER;
2297		2791
2298	if ($@) {	2792	warn "leaving sync_job";
		2793
		2794	1
		2795	} or do {
2299	warn $@;	2796	warn $@;
2300	warn "error while reloading, exiting.";	2797	warn "error while reloading, exiting.";
2301	exit 1;	2798	exit 1;
2302	}	2799	};
2303		2800
2304	warn "reloaded successfully";	2801	warn "reloaded";
2305	};	2802	};
2306		2803
2307	#############################################################################	2804	our $RELOAD_WATCHER; # used only during reload
2308		2805
2309	unless ($LINK_MAP) {	2806	sub reload_perl() {
2310	$LINK_MAP = cf::map::new;	2807	# doing reload synchronously and two reloads happen back-to-back,
		2808	# coro crashes during coro_state_free->destroy here.
2311		2809
2312	$LINK_MAP->width (41);	2810	$RELOAD_WATCHER ||= Event->timer (
2313	$LINK_MAP->height (41);	2811	reentrant => 0,
2314	$LINK_MAP->alloc;
2315	$LINK_MAP->path ("{link}");
2316	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2317	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2318
2319	# dirty hack because... archetypes are not yet loaded
2320	Event->timer (
2321	after => 10,	2812	after => 0,
		2813	data => WF_AUTOCANCEL,
2322	cb => sub {	2814	cb => sub {
2323	$_[0]->w->cancel;	2815	do_reload_perl;
2324		2816	undef $RELOAD_WATCHER;
2325	# provide some exits "home"
2326	my $exit = cf::object::new "exit";
2327
2328	$exit->slaying ($EMERGENCY_POSITION->[0]);
2329	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2330	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2331
2332	$LINK_MAP->insert ($exit->clone, 19, 19);
2333	$LINK_MAP->insert ($exit->clone, 19, 20);
2334	$LINK_MAP->insert ($exit->clone, 19, 21);
2335	$LINK_MAP->insert ($exit->clone, 20, 19);
2336	$LINK_MAP->insert ($exit->clone, 20, 21);
2337	$LINK_MAP->insert ($exit->clone, 21, 19);
2338	$LINK_MAP->insert ($exit->clone, 21, 20);
2339	$LINK_MAP->insert ($exit->clone, 21, 21);
2340
2341	$exit->destroy;
2342	});	2817	},
2343		2818	);
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	2819	}
2349
2350	register "<global>", __PACKAGE__;
2351		2820
2352	register_command "reload" => sub {	2821	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	2822	my ($who, $arg) = @_;
2354		2823
2355	if ($who->flag (FLAG_WIZ)) {	2824	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	2825	$who->message ("reloading server.");
		2826	async { reload_perl };
2359	}	2827	}
2360	};	2828	};
2361		2829
2362	unshift @INC, $LIBDIR;	2830	unshift @INC, $LIBDIR;
2363		2831
		2832	my $bug_warning = 0;
		2833
		2834	our @WAIT_FOR_TICK;
		2835	our @WAIT_FOR_TICK_BEGIN;
		2836
		2837	sub wait_for_tick {
		2838	return unless $TICK_WATCHER->is_active;
		2839	return if $Coro::current == $Coro::main;
		2840
		2841	my $signal = new Coro::Signal;
		2842	push @WAIT_FOR_TICK, $signal;
		2843	$signal->wait;
		2844	}
		2845
		2846	sub wait_for_tick_begin {
		2847	return unless $TICK_WATCHER->is_active;
		2848	return if $Coro::current == $Coro::main;
		2849
		2850	my $signal = new Coro::Signal;
		2851	push @WAIT_FOR_TICK_BEGIN, $signal;
		2852	$signal->wait;
		2853	}
		2854
		2855	my $min = 1e6;#d#
		2856	my $avg = 10;
2364	$TICK_WATCHER = Event->timer (	2857	$TICK_WATCHER = Event->timer (
2365	reentrant => 0,	2858	reentrant => 0,
		2859	parked => 1,
2366	prio => 0,	2860	prio => 0,
2367	at => $NEXT_TICK || $TICK,	2861	at => $NEXT_TICK || $TICK,
2368	data => WF_AUTOCANCEL,	2862	data => WF_AUTOCANCEL,
2369	cb => sub {	2863	cb => sub {
		2864	if ($Coro::current != $Coro::main) {
		2865	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2866	unless ++$bug_warning > 10;
		2867	return;
		2868	}
		2869
		2870	$NOW = $tick_start = Event::time;
		2871
2370	cf::server_tick; # one server iteration	2872	cf::server_tick; # one server iteration
		2873
		2874	0 && sync_job {#d#
		2875	for(1..10) {
		2876	my $t = Event::time;
		2877	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2878	or die;
		2879
		2880	$map->width (50);
		2881	$map->height (50);
		2882	$map->alloc;
		2883	$map->_load_objects ("/tmp/x.map", 1);
		2884	my $t = Event::time - $t;
		2885
		2886	#next unless $t < 0.0013;#d#
		2887	if ($t < $min) {
		2888	$min = $t;
		2889	}
		2890	$avg = $avg * 0.99 + $t * 0.01;
		2891	}
		2892	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2893	exit 0;
		2894	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2895	};
		2896
2371	$RUNTIME += $TICK;	2897	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;	2898	$NEXT_TICK += $TICK;
2373		2899
		2900	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2901	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2902	Coro::async_pool {
		2903	write_runtime
		2904	or warn "ERROR: unable to write runtime file: $!";
		2905	};
		2906	}
		2907
		2908	# my $AFTER = Event::time;
		2909	# warn $AFTER - $NOW;#d#
		2910
		2911	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2912	$sig->send;
		2913	}
		2914	while (my $sig = shift @WAIT_FOR_TICK) {
		2915	$sig->send;
		2916	}
		2917
		2918	$NOW = Event::time;
		2919
2374	# if we are delayed by four ticks or more, skip them all	2920	# if we are delayed by four ticks or more, skip them all
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2921	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2376		2922
2377	$TICK_WATCHER->at ($NEXT_TICK);	2923	$TICK_WATCHER->at ($NEXT_TICK);
2378	$TICK_WATCHER->start;	2924	$TICK_WATCHER->start;
		2925
		2926	$LOAD = ($NOW - $tick_start) / $TICK;
		2927	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2928
		2929	_post_tick;
		2930
		2931
2379	},	2932	},
2380	);	2933	);
2381		2934
		2935	{
2382	IO::AIO::max_poll_time $TICK * 0.2;	2936	BDB::max_poll_time $TICK * 0.1;
2383		2937	$BDB_POLL_WATCHER = Event->io (
2384	Event->io (	2938	reentrant => 0,
2385	fd => IO::AIO::poll_fileno,	2939	fd => BDB::poll_fileno,
2386	poll => 'r',	2940	poll => 'r',
2387	prio => 5,	2941	prio => 0,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391
2392	Event->timer (
2393	data => WF_AUTOCANCEL,	2942	data => WF_AUTOCANCEL,
2394	after => 0,	2943	cb => \&BDB::poll_cb,
2395	interval => 10,	2944	);
2396	cb => sub {	2945	BDB::min_parallel 8;
2397	(Coro::unblock_sub {	2946
2398	write_runtime	2947	BDB::set_sync_prepare {
2399	or warn "ERROR: unable to write runtime file: $!";	2948	my $status;
		2949	my $current = $Coro::current;
		2950	(
		2951	sub {
		2952	$status = $!;
		2953	$current->ready; undef $current;
		2954	},
		2955	sub {
		2956	Coro::schedule while defined $current;
		2957	$! = $status;
		2958	},
		2959	)
		2960	};
		2961
		2962	unless ($DB_ENV) {
		2963	$DB_ENV = BDB::db_env_create;
		2964
		2965	cf::sync_job {
		2966	eval {
		2967	BDB::db_env_open
		2968	$DB_ENV,
		2969	$BDBDIR,
		2970	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2971	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2972	0666;
		2973
		2974	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2975
		2976	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2977	$DB_ENV->set_lk_detect;
		2978	};
		2979
		2980	cf::cleanup "db_env_open(db): $@" if $@;
2400	})->();	2981	};
2401	},	2982	}
2402	);	2983	}
		2984
		2985	{
		2986	IO::AIO::min_parallel 8;
		2987
		2988	undef $Coro::AIO::WATCHER;
		2989	IO::AIO::max_poll_time $TICK * 0.1;
		2990	$AIO_POLL_WATCHER = Event->io (
		2991	reentrant => 0,
		2992	data => WF_AUTOCANCEL,
		2993	fd => IO::AIO::poll_fileno,
		2994	poll => 'r',
		2995	prio => 6,
		2996	cb => \&IO::AIO::poll_cb,
		2997	);
		2998	}
		2999
		3000	my $_log_backtrace;
		3001
		3002	sub _log_backtrace {
		3003	my ($msg, @addr) = @_;
		3004
		3005	$msg =~ s/\n//;
		3006
		3007	# limit the # of concurrent backtraces
		3008	if ($_log_backtrace < 2) {
		3009	++$_log_backtrace;
		3010	async {
		3011	my @bt = fork_call {
		3012	@addr = map { sprintf "%x", $_ } @addr;
		3013	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3014	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3015	or die "addr2line: $!";
		3016
		3017	my @funcs;
		3018	my @res = <$fh>;
		3019	chomp for @res;
		3020	while (@res) {
		3021	my ($func, $line) = splice @res, 0, 2, ();
		3022	push @funcs, "[$func] $line";
		3023	}
		3024
		3025	@funcs
		3026	};
		3027
		3028	LOG llevInfo, "[ABT] $msg\n";
		3029	LOG llevInfo, "[ABT] $_\n" for @bt;
		3030	--$_log_backtrace;
		3031	};
		3032	} else {
		3033	LOG llevInfo, "[ABT] $msg\n";
		3034	LOG llevInfo, "[ABT] [suppressed]\n";
		3035	}
		3036	}
		3037
		3038	# load additional modules
		3039	use cf::pod;
2403		3040
2404	END { cf::emergency_save }	3041	END { cf::emergency_save }
2405		3042
2406	1	3043	1
2407		3044

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