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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 1.273 by root, Mon Jun 4 12:19:08 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
28		41
29	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
30	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
31		44
32	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
33		46
34	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
39		56
		57	our $RELOAD; # number of reloads so far
40	our @EVENT;	58	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		59
43	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
44	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	76	our $NEXT_TICK;
46	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
47		82
48	our %CFG;	83	our %CFG;
49		84
50	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	86	our $RUNTIME;
52		87
53	our %PLAYER; # all users	88	our %PLAYER; # all users
54	our %MAP; # all maps	89	our %MAP; # all maps
55	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";	91
57	our %EXT_CORO; # coroutines bound to extensions	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
58		98
59	binmode STDOUT;	99	binmode STDOUT;
60	binmode STDERR;	100	binmode STDERR;
61		101
62	# read virtual server time, if available	102	# read virtual server time, if available
63	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
64	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
65	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
66	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
67	}	107	}
68		108
69	mkdir cf::localdir;	109	mkdir $_
70	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
71	mkdir cf::localdir . "/" . cf::tmpdir;
72	mkdir cf::localdir . "/" . cf::uniquedir;
73	mkdir $RANDOM_MAPS;
74		111
75	# a special map that is always available
76	our $LINK_MAP;
77	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
78		115
79	#############################################################################	116	#############################################################################
80		117
81	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
82		119
…		…
89	=item $cf::RUNTIME	126	=item $cf::RUNTIME
90		127
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	129	every server tick.
93		130
94	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		134
96	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
98		139
99	=item $cf::NOW	140	=item $cf::NOW
100		141
101	The time of the last (current) server tick.	142	The time of the last (current) server tick.
102		143
103	=item $cf::TICK	144	=item $cf::TICK
104		145
105	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
106		157
107	=item %cf::CFG	158	=item %cf::CFG
108		159
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		168
112	=back	169	=back
113		170
114	=cut	171	=cut
115		172
116	BEGIN {	173	BEGIN {
117	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	175	my $msg = join "", @_;
119	utf8::encode $msg;
120		176
121	$msg .= "\n"	177	$msg .= "\n"
122	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
123		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
124	LOG llevError, $msg;	183	LOG llevError, $msg;
125	};	184	};
126	}	185	}
127		186
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
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~", $runtime
349	and return;	426	and return;
350		427
		428	warn "runtime file written.\n";#d#
		429
351	1	430	1
352	}	431	}
353		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		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";
…		…
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	local $self->{deny_save};
		1311	local $self->{deny_reset};
		1312
		1313	$self->SUPER::thawer_merge ($merge);
		1314	}
		1315
		1316	sub normalise {
		1317	my ($path, $base) = @_;
		1318
		1319	$path = "$path"; # make sure its a string
		1320
		1321	$path =~ s/\.map$//;
		1322
		1323	# map plan:
		1324	#
		1325	# /! non-realised random map exit (special hack!)
		1326	# {... are special paths that are not being touched
		1327	# ?xxx/... are special absolute paths
		1328	# ?random/... random maps
		1329	# /... normal maps
		1330	# ~user/... per-player map of a specific user
		1331
		1332	$path =~ s/$PATH_SEP/\//go;
		1333
		1334	# treat it as relative path if it starts with
		1335	# something that looks reasonable
		1336	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1337	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1338
		1339	$base =~ s{[^/]+/?$}{};
		1340	$path = "$base/$path";
		1341	}
		1342
		1343	for ($path) {
		1344	redo if s{//}{/};
		1345	redo if s{/\.?/}{/};
		1346	redo if s{/[^/]+/\.\./}{/};
		1347	}
		1348
		1349	$path
		1350	}
		1351
		1352	sub new_from_path {
		1353	my (undef, $path, $base) = @_;
		1354
		1355	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1356
		1357	$path = normalise $path, $base;
		1358
		1359	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1360	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1361	my $self = bless cf::map::new, $pkg;
		1362	$self->{path} = $path; $self->path ($path);
		1363	$self->init; # pass $1 etc.
		1364	return $self;
		1365	}
		1366	}
		1367
		1368	Carp::carp "unable to resolve path '$path' (base '$base').";
		1369	()
		1370	}
		1371
		1372	sub init {
		1373	my ($self) = @_;
		1374
		1375	$self
		1376	}
		1377
		1378	sub as_string {
		1379	my ($self) = @_;
		1380
		1381	"$self->{path}"
		1382	}
		1383
		1384	# the displayed name, this is a one way mapping
		1385	sub visible_name {
		1386	&as_string
		1387	}
		1388
		1389	# the original (read-only) location
		1390	sub load_path {
		1391	my ($self) = @_;
		1392
		1393	"$MAPDIR/$self->{path}.map"
		1394	}
		1395
		1396	# the temporary/swap location
		1397	sub save_path {
		1398	my ($self) = @_;
		1399
		1400	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1401	"$TMPDIR/$path.map"
		1402	}
		1403
		1404	# the unique path, undef == no special unique path
		1405	sub uniq_path {
		1406	my ($self) = @_;
		1407
		1408	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1409	"$UNIQUEDIR/$path"
1316	}	1410	}
1317		1411
1318	# and all this just because we cannot iterate over	1412	# and all this just because we cannot iterate over
1319	# all maps in C++...	1413	# all maps in C++...
1320	sub change_all_map_light {	1414	sub change_all_map_light {
…		…
1322		1416
1323	$_->change_map_light ($change)	1417	$_->change_map_light ($change)
1324	for grep $_->outdoor, values %cf::MAP;	1418	for grep $_->outdoor, values %cf::MAP;
1325	}	1419	}
1326		1420
		1421	sub unlink_save {
		1422	my ($self) = @_;
		1423
		1424	utf8::encode (my $save = $self->save_path);
		1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1427	}
		1428
1327	sub try_load_header($) {	1429	sub load_header_from($) {
1328	my ($path) = @_;	1430	my ($self, $path) = @_;
1329		1431
1330	utf8::encode $path;	1432	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	1433	#aio_open $path, O_RDONLY, 0
		1434	# or return;
		1435
		1436	$self->_load_header ($path)
1332	or return;	1437	or return;
1333		1438
1334	my $map = cf::map::new	1439	$self->{load_path} = $path;
		1440
		1441	1
		1442	}
		1443
		1444	sub load_header_orig {
		1445	my ($self) = @_;
		1446
		1447	$self->load_header_from ($self->load_path)
		1448	}
		1449
		1450	sub load_header_temp {
		1451	my ($self) = @_;
		1452
		1453	$self->load_header_from ($self->save_path)
		1454	}
		1455
		1456	sub prepare_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->last_access ((delete $self->{last_access})
		1460	|| $cf::RUNTIME); #d#
		1461	# safety
		1462	$self->{instantiate_time} = $cf::RUNTIME
		1463	if $self->{instantiate_time} > $cf::RUNTIME;
		1464	}
		1465
		1466	sub prepare_orig {
		1467	my ($self) = @_;
		1468
		1469	$self->{load_original} = 1;
		1470	$self->{instantiate_time} = $cf::RUNTIME;
		1471	$self->last_access ($cf::RUNTIME);
		1472	$self->instantiate;
		1473	}
		1474
		1475	sub load_header {
		1476	my ($self) = @_;
		1477
		1478	if ($self->load_header_temp) {
		1479	$self->prepare_temp;
		1480	} else {
		1481	$self->load_header_orig
1335	or return;	1482	or return;
		1483	$self->prepare_orig;
		1484	}
1336		1485
1337	# for better error messages only, will be overwritten	1486	$self->default_region (cf::region::find_by_path $self->{path})
1338	$map->path ($path);	1487	unless $self->default_region;
1339		1488
1340	$map->load_header ($path)	1489	1
1341	or return;
1342
1343	$map->{load_path} = $path;
1344
1345	$map
1346	}	1490	}
1347		1491
1348	sub find;	1492	sub find;
1349	sub find {	1493	sub find {
1350	my ($path, $origin) = @_;	1494	my ($path, $origin) = @_;
1351		1495
1352	#warn "find<$path,$origin>\n";#d#
1353
1354	$path = new cf::path $path, $origin && $origin->path;	1496	$path = normalise $path, $origin && $origin->path;
1355	my $key = $path->as_string;
1356		1497
1357	cf::lock_wait "map_find:$key";	1498	cf::lock_wait "map_find:$path";
1358		1499
1359	$cf::MAP{$key} || do {	1500	$cf::MAP{$path} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	1501	my $guard = cf::lock_acquire "map_find:$path";
1361		1502	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;	1503	or return;
1381		1504
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;	1505	$map->{last_save} = $cf::RUNTIME;
1394		1506
1395	Coro::cede;	1507	$map->load_header
		1508	or return;
1396		1509
1397	if ($map->should_reset) {	1510	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1511	# doing this can freeze the server in a sync job, obviously
		1512	#$cf::WAIT_FOR_TICK->wait;
1398	$map->reset;	1513	$map->reset;
1399	undef $guard;	1514	undef $guard;
1400	$map = find $path	1515	return find $path;
1401	or return;
1402	}	1516	}
1403		1517
1404	$cf::MAP{$key} = $map	1518	$cf::MAP{$path} = $map
1405	}	1519	}
1406	}	1520	}
		1521
		1522	sub pre_load { }
		1523	sub post_load { }
1407		1524
1408	sub load {	1525	sub load {
1409	my ($self) = @_;	1526	my ($self) = @_;
1410		1527
		1528	local $self->{deny_reset} = 1; # loading can take a long time
		1529
1411	my $path = $self->{path};	1530	my $path = $self->{path};
		1531
		1532	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1533	my $guard = cf::lock_acquire "map_load:$path";
1413		1534
1414	return if $self->in_memory != cf::MAP_SWAPPED;	1535	return if $self->in_memory != cf::MAP_SWAPPED;
1415		1536
1416	$self->in_memory (cf::MAP_LOADING);	1537	$self->in_memory (cf::MAP_LOADING);
1417		1538
1418	$self->alloc;	1539	$self->alloc;
		1540
		1541	$self->pre_load;
		1542	Coro::cede;
		1543
1419	$self->load_objects ($self->{load_path}, 1)	1544	$self->_load_objects ($self->{load_path}, 1)
1420	or return;	1545	or return;
1421		1546
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1547	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};	1548	if delete $self->{load_original};
1424		1549
1425	if (my $uniq = $path->uniq_path) {	1550	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	1551	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	1552	if (aio_open $uniq, O_RDONLY, 0) {
1428	$self->clear_unique_items;	1553	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	1554	$self->_load_objects ($uniq, 0);
1430	}	1555	}
1431	}	1556	}
1432		1557
1433	Coro::cede;	1558	Coro::cede;
1434
1435	# now do the right thing for maps	1559	# now do the right thing for maps
1436	$self->link_multipart_objects;	1560	$self->link_multipart_objects;
1437
1438	if ($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)	1561	$self->difficulty ($self->estimate_difficulty)
1447	unless $self->difficulty;	1562	unless $self->difficulty;
		1563	Coro::cede;
		1564
		1565	unless ($self->{deny_activate}) {
		1566	$self->decay_objects;
		1567	$self->fix_auto_apply;
		1568	$self->update_buttons;
		1569	Coro::cede;
		1570	$self->set_darkness_map;
		1571	Coro::cede;
1448	$self->activate;	1572	$self->activate;
1449	}	1573	}
1450		1574
1451	Coro::cede;
1452
1453	$self->in_memory (cf::MAP_IN_MEMORY);	1575	$self->in_memory (cf::MAP_IN_MEMORY);
		1576	}
		1577
		1578	$self->post_load;
		1579	}
		1580
		1581	sub customise_for {
		1582	my ($self, $ob) = @_;
		1583
		1584	return find "~" . $ob->name . "/" . $self->{path}
		1585	if $self->per_player;
		1586
		1587	$self
		1588	}
		1589
		1590	# find and load all maps in the 3x3 area around a map
		1591	sub load_diag {
		1592	my ($map) = @_;
		1593
		1594	my @diag; # diagonal neighbours
		1595
		1596	for (0 .. 3) {
		1597	my $neigh = $map->tile_path ($_)
		1598	or next;
		1599	$neigh = find $neigh, $map
		1600	or next;
		1601	$neigh->load;
		1602
		1603	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1604	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1605	}
		1606
		1607	for (@diag) {
		1608	my $neigh = find @$_
		1609	or next;
		1610	$neigh->load;
		1611	}
1454	}	1612	}
1455		1613
1456	sub find_sync {	1614	sub find_sync {
1457	my ($path, $origin) = @_;	1615	my ($path, $origin) = @_;
1458		1616
1459	cf::sync_job { cf::map::find $path, $origin }	1617	cf::sync_job { find $path, $origin }
1460	}	1618	}
1461		1619
1462	sub do_load_sync {	1620	sub do_load_sync {
1463	my ($map) = @_;	1621	my ($map) = @_;
1464		1622
1465	cf::sync_job { $map->load };	1623	cf::sync_job { $map->load };
1466	}	1624	}
1467		1625
		1626	our %MAP_PREFETCH;
		1627	our $MAP_PREFETCHER = undef;
		1628
		1629	sub find_async {
		1630	my ($path, $origin) = @_;
		1631
		1632	$path = normalise $path, $origin && $origin->{path};
		1633
		1634	if (my $map = $cf::MAP{$path}) {
		1635	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1636	}
		1637
		1638	undef $MAP_PREFETCH{$path};
		1639	$MAP_PREFETCHER ||= cf::async {
		1640	while (%MAP_PREFETCH) {
		1641	for my $path (keys %MAP_PREFETCH) {
		1642	my $map = find $path
		1643	or next;
		1644	$map->load;
		1645
		1646	delete $MAP_PREFETCH{$path};
		1647	}
		1648	}
		1649	undef $MAP_PREFETCHER;
		1650	};
		1651	$MAP_PREFETCHER->prio (6);
		1652
		1653	()
		1654	}
		1655
1468	sub save {	1656	sub save {
1469	my ($self) = @_;	1657	my ($self) = @_;
1470		1658
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	1659	my $lock = cf::lock_acquire "map_data:" . $self->path;
1472		1660
1473	$self->{last_save} = $cf::RUNTIME;	1661	$self->{last_save} = $cf::RUNTIME;
1474		1662
1475	return unless $self->dirty;	1663	return unless $self->dirty;
1476		1664
1477	my $save = $self->{path}->save_path; utf8::encode $save;	1665	my $save = $self->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1666	my $uniq = $self->uniq_path; utf8::encode $uniq;
1479		1667
1480	$self->{load_path} = $save;	1668	$self->{load_path} = $save;
1481		1669
1482	return if $self->{deny_save};	1670	return if $self->{deny_save};
1483		1671
…		…
1486	cf::async {	1674	cf::async {
1487	$_->contr->save for $self->players;	1675	$_->contr->save for $self->players;
1488	};	1676	};
1489		1677
1490	if ($uniq) {	1678	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1679	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);	1680	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {	1681	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1682	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}	1683	}
1496	}	1684	}
1497		1685
1498	sub swap_out {	1686	sub swap_out {
1499	my ($self) = @_;	1687	my ($self) = @_;
…		…
1513		1701
1514	sub reset_at {	1702	sub reset_at {
1515	my ($self) = @_;	1703	my ($self) = @_;
1516		1704
1517	# TODO: safety, remove and allow resettable per-player maps	1705	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};	1706	return 1e99 if $self->isa ("ext::map_per_player");#d#
1519	return 1e99 if $self->{deny_reset};	1707	return 1e99 if $self->{deny_reset};
1520		1708
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1709	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1710	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		1711
…		…
1528	my ($self) = @_;	1716	my ($self) = @_;
1529		1717
1530	$self->reset_at <= $cf::RUNTIME	1718	$self->reset_at <= $cf::RUNTIME
1531	}	1719	}
1532		1720
1533	sub unlink_save {
1534	my ($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	$self->save;
1552	}
1553
1554	sub reset {	1721	sub reset {
1555	my ($self) = @_;	1722	my ($self) = @_;
1556		1723
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	1724	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		1725
1559	return if $self->players;	1726	return if $self->players;
1560	return if $self->{path}{user_rel};#d#	1727	return if $self->isa ("ext::map_per_player");#d#
1561		1728
1562	warn "resetting map ", $self->path;#d#	1729	warn "resetting map ", $self->path;#d#
1563		1730
		1731	$self->in_memory (cf::MAP_SWAPPED);
		1732
		1733	# need to save uniques path
		1734	unless ($self->{deny_save}) {
		1735	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1736
		1737	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1738	if $uniq;
		1739	}
		1740
1564	delete $cf::MAP{$self->path};	1741	delete $cf::MAP{$self->path};
		1742
		1743	$self->clear;
1565		1744
1566	$_->clear_links_to ($self) for values %cf::MAP;	1745	$_->clear_links_to ($self) for values %cf::MAP;
1567		1746
1568	$self->unlink_save;	1747	$self->unlink_save;
1569	$self->destroy;	1748	$self->destroy;
…		…
1572	my $nuke_counter = "aaaa";	1751	my $nuke_counter = "aaaa";
1573		1752
1574	sub nuke {	1753	sub nuke {
1575	my ($self) = @_;	1754	my ($self) = @_;
1576		1755
		1756	delete $cf::MAP{$self->path};
		1757
		1758	$self->unlink_save;
		1759
		1760	bless $self, "cf::map";
		1761	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	1762	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	1763	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	1764	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1765
		1766	$cf::MAP{$self->path} = $self;
		1767
1580	$self->reset; # polite request, might not happen	1768	$self->reset; # polite request, might not happen
1581	}	1769	}
1582		1770
1583	sub customise_for {	1771	=item cf::map::unique_maps
1584	my ($map, $ob) = @_;
1585		1772
1586	if ($map->per_player) {	1773	Returns an arrayref of paths of all shared maps that have
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1774	instantiated unique items. May block.
1588	}
1589		1775
1590	$map	1776	=cut
1591	}
1592		1777
1593	sub emergency_save {	1778	sub unique_maps() {
1594	my $freeze_guard = cf::freeze_mainloop;	1779	my $files = aio_readdir $UNIQUEDIR
		1780	or return;
1595		1781
1596	warn "enter emergency perl save\n";	1782	my @paths;
1597		1783
1598	cf::sync_job {	1784	for (@$files) {
1599	warn "begin emergency player save\n";	1785	utf8::decode $_;
1600	$_->save for values %cf::PLAYER;	1786	next if /\.pst$/;
1601	warn "end emergency player save\n";	1787	next unless /^$PATH_SEP/o;
1602		1788
1603	warn "begin emergency map save\n";	1789	push @paths, cf::map::normalise $_;
1604	$_->save for values %cf::MAP;
1605	warn "end emergency map save\n";
1606	};	1790	}
1607		1791
1608	warn "leave emergency perl save\n";	1792	\@paths
1609	}	1793	}
1610		1794
1611	package cf;	1795	package cf;
1612		1796
1613	=back	1797	=back
1614		1798
		1799	=head3 cf::object
		1800
		1801	=cut
		1802
		1803	package cf::object;
		1804
		1805	=over 4
		1806
		1807	=item $ob->inv_recursive
		1808
		1809	Returns the inventory of the object _and_ their inventories, recursively.
		1810
		1811	=cut
		1812
		1813	sub inv_recursive_;
		1814	sub inv_recursive_ {
		1815	map { $_, inv_recursive_ $_->inv } @_
		1816	}
		1817
		1818	sub inv_recursive {
		1819	inv_recursive_ inv $_[0]
		1820	}
		1821
		1822	package cf;
		1823
		1824	=back
1615		1825
1616	=head3 cf::object::player	1826	=head3 cf::object::player
1617		1827
1618	=over 4	1828	=over 4
1619		1829
…		…
1659		1869
1660	=item $player_object->enter_link	1870	=item $player_object->enter_link
1661		1871
1662	Freezes the player and moves him/her to a special map (C<{link}>).	1872	Freezes the player and moves him/her to a special map (C<{link}>).
1663		1873
1664	The player should be reaosnably safe there for short amounts of time. You	1874	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.	1875	I<MUST> call C<leave_link> as soon as possible, though.
1666		1876
		1877	Will never block.
		1878
1667	=item $player_object->leave_link ($map, $x, $y)	1879	=item $player_object->leave_link ($map, $x, $y)
1668		1880
1669	Moves the player out of the specila link map onto the given map. If the	1881	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	1882	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	1883	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	1884	fails, to the emergency map position.
1673		1885
1674	Might block.	1886	Might block.
1675		1887
1676	=cut	1888	=cut
		1889
		1890	sub link_map {
		1891	unless ($LINK_MAP) {
		1892	$LINK_MAP = cf::map::find "{link}"
		1893	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1894	$LINK_MAP->load;
		1895	}
		1896
		1897	$LINK_MAP
		1898	}
1677		1899
1678	sub cf::object::player::enter_link {	1900	sub cf::object::player::enter_link {
1679	my ($self) = @_;	1901	my ($self) = @_;
1680		1902
1681	$self->deactivate_recursive;	1903	$self->deactivate_recursive;
1682		1904
1683	return if $self->map == $LINK_MAP;	1905	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		1906
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1907	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	1908	if $self->map && $self->map->{path} ne "{link}";
1687		1909
1688	$self->enter_map ($LINK_MAP, 20, 20);	1910	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1689	}	1911	}
1690		1912
1691	sub cf::object::player::leave_link {	1913	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	1914	my ($self, $map, $x, $y) = @_;
		1915
		1916	return unless $self->contr->active;
1693		1917
1694	my $link_pos = delete $self->{_link_pos};	1918	my $link_pos = delete $self->{_link_pos};
1695		1919
1696	unless ($map) {	1920	unless ($map) {
1697	# restore original map position	1921	# restore original map position
…		…
1711	# use -1 or undef as default coordinates, not 0, 0	1935	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	1936	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	1937	if $x <=0 && $y <= 0;
1714		1938
1715	$map->load;	1939	$map->load;
		1940	$map->load_diag;
1716		1941
1717	return unless $self->contr->active;	1942	return unless $self->contr->active;
1718	$self->activate_recursive;	1943	$self->activate_recursive;
		1944
		1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1719	$self->enter_map ($map, $x, $y);	1946	$self->enter_map ($map, $x, $y);
1720	}	1947	}
1721		1948
1722	cf::player->attach (
1723	on_logout => sub {
1724	my ($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)	1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1755		1950
		1951	Moves the player to the given map-path and coordinates by first freezing
		1952	her, loading and preparing them map, calling the provided $check callback
		1953	that has to return the map if sucecssful, and then unfreezes the player on
		1954	the new (success) or old (failed) map position.
		1955
1756	=cut	1956	=cut
		1957
		1958	our $GOTOGEN;
1757		1959
1758	sub cf::object::player::goto {	1960	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	1961	my ($self, $path, $x, $y, $check) = @_;
1760		1962
1761	$path = new cf::path $path;	1963	# do generation counting so two concurrent goto's will be executed in-order
1762	$path ne "/" or Carp::cluck ("oy");#d#	1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		1965
1764	$self->enter_link;	1966	$self->enter_link;
1765		1967
1766	(async {	1968	(async {
		1969	my $map = eval {
1767	my $map = cf::map::find $path->as_string;	1970	my $map = cf::map::find $path;
		1971
		1972	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	1973	$map = $map->customise_for ($self);
1769		1974	$map = $check->($map) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	1975	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1976	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1977	}
1774		1978
		1979	$map
		1980	};
		1981
		1982	if ($@) {
		1983	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1984	LOG llevError | logBacktrace, Carp::longmess $@;
		1985	}
		1986
		1987	if ($gen == $self->{_goto_generation}) {
		1988	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	1989	$self->leave_link ($map, $x, $y);
		1990	}
1776	})->prio (1);	1991	})->prio (1);
1777	}	1992	}
1778		1993
1779	=item $player_object->enter_exit ($exit_object)	1994	=item $player_object->enter_exit ($exit_object)
1780		1995
…		…
1782		1997
1783	sub parse_random_map_params {	1998	sub parse_random_map_params {
1784	my ($spec) = @_;	1999	my ($spec) = @_;
1785		2000
1786	my $rmp = { # defaults	2001	my $rmp = { # defaults
1787	xsize => 10,	2002	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2003	ysize => (cf::rndm 15, 40),
		2004	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2005	#layout => string,
1789	};	2006	};
1790		2007
1791	for (split /\n/, $spec) {	2008	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2009	my ($k, $v) = split /\s+/, $_, 2;
1793		2010
…		…
1797	$rmp	2014	$rmp
1798	}	2015	}
1799		2016
1800	sub prepare_random_map {	2017	sub prepare_random_map {
1801	my ($exit) = @_;	2018	my ($exit) = @_;
		2019
		2020	my $guard = cf::lock_acquire "exit_prepare:$exit";
1802		2021
1803	# all this does is basically replace the /! path by	2022	# all this does is basically replace the /! path by
1804	# a new random map path (?random/...) with a seed	2023	# a new random map path (?random/...) with a seed
1805	# that depends on the exit object	2024	# that depends on the exit object
1806		2025
1807	my $rmp = parse_random_map_params $exit->msg;	2026	my $rmp = parse_random_map_params $exit->msg;
1808		2027
1809	if ($exit->map) {	2028	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2029	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2030	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2031	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2032	$rmp->{origin_y} = $exit->y;
1814	}	2033	}
1815		2034
1816	$rmp->{random_seed} ||= $exit->random_seed;	2035	$rmp->{random_seed} ||= $exit->random_seed;
1817		2036
1818	my $data = cf::to_json $rmp;	2037	my $data = cf::to_json $rmp;
1819	my $md5 = Digest::MD5::md5_hex $data;	2038	my $md5 = Digest::MD5::md5_hex $data;
		2039	my $meta = "$RANDOMDIR/$md5.meta";
1820		2040
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2041	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2042	aio_write $fh, 0, (length $data), $data, 0;
		2043	undef $fh;
		2044	aio_rename "$meta~", $meta;
1823		2045
1824	$exit->slaying ("?random/$md5");	2046	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2047	$exit->msg (undef);
1826	}	2048	}
1827	}	2049	}
1828		2050
1829	sub cf::object::player::enter_exit {	2051	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2052	my ($self, $exit) = @_;
1831		2053
1832	return unless $self->type == cf::PLAYER;	2054	return unless $self->type == cf::PLAYER;
		2055
		2056	if ($exit->slaying eq "/!") {
		2057	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2058	# the problem is that $exit might not survive long enough
		2059	# so it needs to be done right now, right here
		2060	cf::sync_job { prepare_random_map $exit };
		2061	}
		2062
		2063	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2064	my $hp = $exit->stats->hp;
		2065	my $sp = $exit->stats->sp;
1833		2066
1834	$self->enter_link;	2067	$self->enter_link;
1835		2068
1836	(async {	2069	(async {
1837	$self->deactivate_recursive; # just to be sure	2070	$self->deactivate_recursive; # just to be sure
1838	unless (eval {	2071	unless (eval {
1839	prepare_random_map $exit	2072	$self->goto ($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		2073
1845	1;	2074	1;
1846	}) {	2075	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2076	$self->message ("Something went wrong deep within the crossfire server. "
1848	. "I'll try to bring you back to the map you were before. "	2077	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2078	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2079	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2080
1852	warn "ERROR in enter_exit: $@";	2081	warn "ERROR in enter_exit: $@";
1853	$self->leave_link;	2082	$self->leave_link;
1854	}	2083	}
1855	})->prio (1);	2084	})->prio (1);
…		…
1868		2097
1869	sub cf::client::send_drawinfo {	2098	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2099	my ($self, $text, $flags) = @_;
1871		2100
1872	utf8::encode $text;	2101	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2102	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2103	}
1875		2104
		2105	=item $client->ext_event ($type, %msg)
		2106
		2107	Sends an exti event to the client.
		2108
		2109	=cut
		2110
		2111	sub cf::client::ext_event($$%) {
		2112	my ($self, $type, %msg) = @_;
		2113
		2114	$msg{msgtype} = "event_$type";
		2115	$self->send_packet ("ext " . cf::to_json \%msg);
		2116	}
1876		2117
1877	=item $success = $client->query ($flags, "text", \&cb)	2118	=item $success = $client->query ($flags, "text", \&cb)
1878		2119
1879	Queues a query to the client, calling the given callback with	2120	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>,	2121	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1909	# get handled first	2150	# get handled first
1910	my $queue = delete $ns->{query_queue}	2151	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	2152	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		2153
1913	(shift @$queue)->[1]->($msg);	2154	(shift @$queue)->[1]->($msg);
		2155	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		2156
1915	push @{ $ns->{query_queue} }, @$queue;	2157	push @{ $ns->{query_queue} }, @$queue;
1916		2158
1917	if (@{ $ns->{query_queue} } == @$queue) {	2159	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	2160	if (@$queue) {
…		…
1976		2218
1977	# here we export the classes and methods available to script code	2219	# here we export the classes and methods available to script code
1978		2220
1979	=pod	2221	=pod
1980		2222
1981	The following fucntions and emthods are available within a safe environment:	2223	The following functions and methods are available within a safe environment:
1982		2224
1983	cf::object contr pay_amount pay_player map	2225	cf::object contr pay_amount pay_player map
1984	cf::object::player player	2226	cf::object::player player
1985	cf::player peaceful	2227	cf::player peaceful
1986	cf::map trigger	2228	cf::map trigger
…		…
2071	#############################################################################	2313	#############################################################################
2072		2314
2073	=head2 EXTENSION DATABASE SUPPORT	2315	=head2 EXTENSION DATABASE SUPPORT
2074		2316
2075	Crossfire maintains a very simple database for extension use. It can	2317	Crossfire maintains a very simple database for extension use. It can
2076	currently store anything that can be serialised using Storable, which	2318	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2077	excludes objects.	2319	convert to/from binary).
2078		2320
2079	The parameter C<$family> should best start with the name of the extension	2321	The parameter C<$family> should best start with the name of the extension
2080	using it, it should be unique.	2322	using it, it should be unique.
2081		2323
2082	=over 4	2324	=over 4
2083		2325
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	2326	=item $value = cf::db_get $family => $key
2091		2327
2092	Returns a single value from the database	2328	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		2329
2099	=item cf::db_put $family => $key => $value	2330	=item cf::db_put $family => $key => $value
2100		2331
2101	Stores the given C<$value> in the family hash. Updates are delayed, if you	2332	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		2333
2112	=cut	2334	=cut
2113		2335
2114	our $DB;	2336	our $DB;
2115		2337
2116	{	2338	sub db_init {
2117	my $path = cf::localdir . "/database.pst";	2339	unless ($DB) {
		2340	$DB = BDB::db_create $DB_ENV;
2118		2341
2119	sub db_load() {	2342	cf::sync_job {
2120	$DB = stat $path ? Storable::retrieve $path : { };	2343	eval {
2121	}	2344	$DB->set_flags (BDB::CHKSUM);
2122		2345
2123	my $pid;	2346	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2124		2347	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2125	sub db_save() {	2348	cf::cleanup "db_open(db): $!" if $!;
2126	waitpid $pid, 0 if $pid;	2349	};
2127	if (0 == ($pid = fork)) {	2350	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	}	2351	};
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	});	2352	}
		2353	}
2145		2354
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}
2150
2151	sub db_get($;$) {	2355	sub db_get($$) {
2152	@_ >= 2	2356	my $key = "$_[0]/$_[1]";
2153	? $DB->{$_[0]}{$_[1]}
2154	: ($DB->{$_[0]} ||= { })
2155	}
2156		2357
		2358	cf::sync_job {
		2359	BDB::db_get $DB, undef, $key, my $data;
		2360
		2361	$! ? ()
		2362	: $data
		2363	}
		2364	}
		2365
2157	sub db_put($$;$) {	2366	sub db_put($$$) {
2158	if (@_ >= 3) {	2367	BDB::dbreq_pri 4;
2159	$DB->{$_[0]}{$_[1]} = $_[2];	2368	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2160	} else {	2369	}
2161	$DB->{$_[0]} = $_[1];
2162	}
2163	db_dirty;
2164	}
2165		2370
2166	cf::global->attach (	2371	=item cf::cache $id => [$paths...], $processversion => $process
2167	prio => 10000,	2372
2168	on_cleanup => sub {	2373	Generic caching function that returns the value of the resource $id,
2169	db_sync;	2374	caching and regenerating as required.
		2375
		2376	This function can block.
		2377
		2378	=cut
		2379
		2380	sub cache {
		2381	my ($id, $src, $processversion, $process) = @_;
		2382
		2383	my $meta =
		2384	join "\x00",
		2385	$processversion,
		2386	map {
		2387	aio_stat $_
		2388	and Carp::croak "$_: $!";
		2389
		2390	($_, (stat _)[7,9])
		2391	} @$src;
		2392
		2393	my $dbmeta = db_get cache => "$id/meta";
		2394	if ($dbmeta ne $meta) {
		2395	# changed, we may need to process
		2396
		2397	my @data;
		2398	my $md5;
		2399
		2400	for (0 .. $#$src) {
		2401	0 <= aio_load $src->[$_], $data[$_]
		2402	or Carp::croak "$src->[$_]: $!";
2170	},	2403	}
2171	);	2404
		2405	# if processing is expensive, check
		2406	# checksum first
		2407	if (1) {
		2408	$md5 =
		2409	join "\x00",
		2410	$processversion,
		2411	map {
		2412	Coro::cede;
		2413	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2414	} 0.. $#$src;
		2415
		2416
		2417	my $dbmd5 = db_get cache => "$id/md5";
		2418	if ($dbmd5 eq $md5) {
		2419	db_put cache => "$id/meta", $meta;
		2420
		2421	return db_get cache => "$id/data";
		2422	}
		2423	}
		2424
		2425	my $t1 = Time::HiRes::time;
		2426	my $data = $process->(\@data);
		2427	my $t2 = Time::HiRes::time;
		2428
		2429	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2430
		2431	db_put cache => "$id/data", $data;
		2432	db_put cache => "$id/md5" , $md5;
		2433	db_put cache => "$id/meta", $meta;
		2434
		2435	return $data;
		2436	}
		2437
		2438	db_get cache => "$id/data"
		2439	}
		2440
		2441	=item fork_call { }, $args
		2442
		2443	Executes the given code block with the given arguments in a seperate
		2444	process, returning the results. Everything must be serialisable with
		2445	Coro::Storable. May, of course, block. Note that the executed sub may
		2446	never block itself or use any form of Event handling.
		2447
		2448	=cut
		2449
		2450	sub fork_call(&@) {
		2451	my ($cb, @args) = @_;
		2452
		2453	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2454	# or die "socketpair: $!";
		2455	pipe my $fh1, my $fh2
		2456	or die "pipe: $!";
		2457
		2458	if (my $pid = fork) {
		2459	close $fh2;
		2460
		2461	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2462	$res = Coro::Storable::thaw $res;
		2463
		2464	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2465
		2466	die $$res unless "ARRAY" eq ref $res;
		2467
		2468	return wantarray ? @$res : $res->[-1];
		2469	} else {
		2470	reset_signals;
		2471	local $SIG{__WARN__};
		2472	local $SIG{__DIE__};
		2473	eval {
		2474	close $fh1;
		2475
		2476	my @res = eval { $cb->(@args) };
		2477	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2478	};
		2479
		2480	warn $@ if $@;
		2481	_exit 0;
		2482	}
2172	}	2483	}
2173		2484
2174	#############################################################################	2485	#############################################################################
2175	# the server's main()	2486	# the server's init and main functions
		2487
		2488	sub load_facedata($) {
		2489	my ($path) = @_;
		2490
		2491	warn "loading facedata from $path\n";
		2492
		2493	my $facedata;
		2494	0 < aio_load $path, $facedata
		2495	or die "$path: $!";
		2496
		2497	$facedata = Coro::Storable::thaw $facedata;
		2498
		2499	$facedata->{version} == 2
		2500	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2501
		2502	{
		2503	my $faces = $facedata->{faceinfo};
		2504
		2505	while (my ($face, $info) = each %$faces) {
		2506	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2510	Coro::cede;
		2511	}
		2512
		2513	while (my ($face, $info) = each %$faces) {
		2514	next unless $info->{smooth};
		2515	my $idx = cf::face::find $face
		2516	or next;
		2517	if (my $smooth = cf::face::find $info->{smooth}) {
		2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2519	} else {
		2520	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2521	}
		2522	Coro::cede;
		2523	}
		2524	}
		2525
		2526	{
		2527	my $anims = $facedata->{animinfo};
		2528
		2529	while (my ($anim, $info) = each %$anims) {
		2530	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2531	Coro::cede;
		2532	}
		2533
		2534	cf::anim::invalidate_all; # d'oh
		2535	}
		2536
		2537	1
		2538	}
		2539
		2540	sub reload_regions {
		2541	load_resource_file "$MAPDIR/regions"
		2542	or die "unable to load regions file\n";
		2543	}
		2544
		2545	sub reload_facedata {
		2546	load_facedata "$DATADIR/facedata"
		2547	or die "unable to load facedata\n";
		2548	}
		2549
		2550	sub reload_archetypes {
		2551	load_resource_file "$DATADIR/archetypes"
		2552	or die "unable to load archetypes\n";
		2553	}
		2554
		2555	sub reload_treasures {
		2556	load_resource_file "$DATADIR/treasures"
		2557	or die "unable to load treasurelists\n";
		2558	}
		2559
		2560	sub reload_resources {
		2561	warn "reloading resource files...\n";
		2562
		2563	reload_regions;
		2564	reload_facedata;
		2565	reload_archetypes;
		2566	reload_treasures;
		2567
		2568	warn "finished reloading resource files\n";
		2569	}
		2570
		2571	sub init {
		2572	reload_resources;
		2573	}
2176		2574
2177	sub cfg_load {	2575	sub cfg_load {
2178	open my $fh, "<:utf8", cf::confdir . "/config"	2576	open my $fh, "<:utf8", "$CONFDIR/config"
2179	or return;	2577	or return;
2180		2578
2181	local $/;	2579	local $/;
2182	*CFG = YAML::Syck::Load <$fh>;	2580	*CFG = YAML::Syck::Load <$fh>;
2183		2581
…		…
2197		2595
2198	sub main {	2596	sub main {
2199	# we must not ever block the main coroutine	2597	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	2598	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2599	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2600	(async {
2202	async { Event::one_event };	2601	Event::one_event;
		2602	})->prio (Coro::PRIO_MAX);
2203	};	2603	};
2204		2604
2205	cfg_load;	2605	cfg_load;
2206	db_load;	2606	db_init;
2207	load_extensions;	2607	load_extensions;
		2608
		2609	$TICK_WATCHER->start;
2208	Event::loop;	2610	Event::loop;
2209	}	2611	}
2210		2612
2211	#############################################################################	2613	#############################################################################
2212	# initialisation	2614	# initialisation and cleanup
2213		2615
		2616	# install some emergency cleanup handlers
		2617	BEGIN {
		2618	for my $signal (qw(INT HUP TERM)) {
		2619	Event->signal (
		2620	reentrant => 0,
		2621	data => WF_AUTOCANCEL,
		2622	signal => $signal,
		2623	prio => 0,
		2624	cb => sub {
		2625	cf::cleanup "SIG$signal";
		2626	},
		2627	);
		2628	}
		2629	}
		2630
		2631	sub emergency_save() {
		2632	my $freeze_guard = cf::freeze_mainloop;
		2633
		2634	warn "enter emergency perl save\n";
		2635
		2636	cf::sync_job {
		2637	# use a peculiar iteration method to avoid tripping on perl
		2638	# refcount bugs in for. also avoids problems with players
		2639	# and maps saved/destroyed asynchronously.
		2640	warn "begin emergency player save\n";
		2641	for my $login (keys %cf::PLAYER) {
		2642	my $pl = $cf::PLAYER{$login} or next;
		2643	$pl->valid or next;
		2644	$pl->save;
		2645	}
		2646	warn "end emergency player save\n";
		2647
		2648	warn "begin emergency map save\n";
		2649	for my $path (keys %cf::MAP) {
		2650	my $map = $cf::MAP{$path} or next;
		2651	$map->valid or next;
		2652	$map->save;
		2653	}
		2654	warn "end emergency map save\n";
		2655
		2656	warn "begin emergency database checkpoint\n";
		2657	BDB::db_env_txn_checkpoint $DB_ENV;
		2658	warn "end emergency database checkpoint\n";
		2659	};
		2660
		2661	warn "leave emergency perl save\n";
		2662	}
		2663
		2664	sub post_cleanup {
		2665	my ($make_core) = @_;
		2666
		2667	warn Carp::longmess "post_cleanup backtrace"
		2668	if $make_core;
		2669	}
		2670
2214	sub reload() {	2671	sub do_reload_perl() {
2215	# can/must only be called in main	2672	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	2673	if ($Coro::current != $Coro::main) {
2217	warn "can only reload from main coroutine\n";	2674	warn "can only reload from main coroutine";
2218	return;	2675	return;
2219	}	2676	}
2220		2677
2221	warn "reloading...";	2678	warn "reloading...";
2222		2679
2223	my $guard = freeze_mainloop;	2680	warn "entering sync_job";
		2681
		2682	cf::sync_job {
		2683	cf::write_runtime; # external watchdog should not bark
2224	cf::emergency_save;	2684	cf::emergency_save;
		2685	cf::write_runtime; # external watchdog should not bark
2225		2686
2226	eval {	2687	warn "syncing database to disk";
		2688	BDB::db_env_txn_checkpoint $DB_ENV;
		2689
2227	# if anything goes wrong in here, we should simply crash as we already saved	2690	# if anything goes wrong in here, we should simply crash as we already saved
2228		2691
2229	# cancel all watchers	2692	warn "cancelling all WF_AUTOCANCEL watchers";
2230	for (Event::all_watchers) {	2693	for (Event::all_watchers) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;	2694	$_->cancel if $_->data & WF_AUTOCANCEL;
2232	}	2695	}
2233		2696
		2697	warn "flushing outstanding aio requests";
		2698	for (;;) {
		2699	BDB::flush;
		2700	IO::AIO::flush;
		2701	Coro::cede;
		2702	last unless IO::AIO::nreqs || BDB::nreqs;
		2703	warn "iterate...";
		2704	}
		2705
		2706	++$RELOAD;
		2707
2234	# cancel all extension coros	2708	warn "cancelling all extension coros";
2235	$_->cancel for values %EXT_CORO;	2709	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	2710	%EXT_CORO = ();
2237		2711
2238	# unload all extensions	2712	warn "removing commands";
2239	for (@exts) {	2713	%COMMAND = ();
		2714
		2715	warn "removing ext commands";
		2716	%EXTCMD = ();
		2717
		2718	warn "unloading/nuking all extensions";
		2719	for my $pkg (@EXTS) {
2240	warn "unloading <$_>";	2720	warn "... unloading $pkg";
2241	unload_extension $_;	2721
		2722	if (my $cb = $pkg->can ("unload")) {
		2723	eval {
		2724	$cb->($pkg);
		2725	1
		2726	} or warn "$pkg unloaded, but with errors: $@";
2242	}	2727	}
2243		2728
		2729	warn "... nuking $pkg";
		2730	Symbol::delete_package $pkg;
		2731	}
		2732
2244	# unload all modules loaded from $LIBDIR	2733	warn "unloading all perl modules loaded from $LIBDIR";
2245	while (my ($k, $v) = each %INC) {	2734	while (my ($k, $v) = each %INC) {
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2735	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2247		2736
2248	warn "removing <$k>";	2737	warn "... unloading $k";
2249	delete $INC{$k};	2738	delete $INC{$k};
2250		2739
2251	$k =~ s/\.pm$//;	2740	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;	2741	$k =~ s/\//::/g;
2253		2742
…		…
2256	}	2745	}
2257		2746
2258	Symbol::delete_package $k;	2747	Symbol::delete_package $k;
2259	}	2748	}
2260		2749
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	2750	warn "getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	2751	Symbol::delete_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2752	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		2753
2269	# remove register_script_function callbacks
2270	# TODO
2271
2272	# unload cf.pm "a bit"	2754	warn "unloading cf.pm \"a bit\"";
2273	delete $INC{"cf.pm"};	2755	delete $INC{"cf.pm"};
		2756	delete $INC{"cf/pod.pm"};
2274		2757
2275	# don't, removes xs symbols, too,	2758	# don't, removes xs symbols, too,
2276	# and global variables created in xs	2759	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	2760	#Symbol::delete_package __PACKAGE__;
2278		2761
2279	# reload cf.pm	2762	warn "unload completed, starting to reload now";
		2763
2280	warn "reloading cf.pm";	2764	warn "reloading cf.pm";
2281	require cf;	2765	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2766	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2283		2767
2284	# load config and database again	2768	warn "loading config and database again";
2285	cf::cfg_load;	2769	cf::cfg_load;
2286	cf::db_load;
2287		2770
2288	# load extensions
2289	warn "load extensions";	2771	warn "loading extensions";
2290	cf::load_extensions;	2772	cf::load_extensions;
2291		2773
2292	# reattach attachments to objects	2774	warn "reattaching attachments to objects/players";
2293	warn "reattach";	2775	_global_reattach; # objects, sockets
2294	_global_reattach;	2776	warn "reattaching attachments to maps";
2295	reattach $_ for values %MAP;	2777	reattach $_ for values %MAP;
2296	};	2778	warn "reattaching attachments to players";
		2779	reattach $_ for values %PLAYER;
2297		2780
2298	if ($@) {	2781	warn "leaving sync_job";
		2782
		2783	1
		2784	} or do {
2299	warn $@;	2785	warn $@;
2300	warn "error while reloading, exiting.";	2786	warn "error while reloading, exiting.";
2301	exit 1;	2787	exit 1;
2302	}	2788	};
2303		2789
2304	warn "reloaded successfully";	2790	warn "reloaded";
2305	};	2791	};
2306		2792
2307	#############################################################################	2793	our $RELOAD_WATCHER; # used only during reload
2308		2794
2309	unless ($LINK_MAP) {	2795	sub reload_perl() {
2310	$LINK_MAP = cf::map::new;	2796	# doing reload synchronously and two reloads happen back-to-back,
		2797	# coro crashes during coro_state_free->destroy here.
2311		2798
2312	$LINK_MAP->width (41);	2799	$RELOAD_WATCHER ||= Event->timer (
2313	$LINK_MAP->height (41);	2800	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,	2801	after => 0,
		2802	data => WF_AUTOCANCEL,
2322	cb => sub {	2803	cb => sub {
2323	$_[0]->w->cancel;	2804	do_reload_perl;
2324		2805	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	});	2806	},
2343		2807	);
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	2808	}
2349
2350	register "<global>", __PACKAGE__;
2351		2809
2352	register_command "reload" => sub {	2810	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	2811	my ($who, $arg) = @_;
2354		2812
2355	if ($who->flag (FLAG_WIZ)) {	2813	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	2814	$who->message ("reloading server.");
		2815	async { reload_perl };
2359	}	2816	}
2360	};	2817	};
2361		2818
2362	unshift @INC, $LIBDIR;	2819	unshift @INC, $LIBDIR;
2363		2820
		2821	my $bug_warning = 0;
		2822
		2823	our @WAIT_FOR_TICK;
		2824	our @WAIT_FOR_TICK_BEGIN;
		2825
		2826	sub wait_for_tick {
		2827	return unless $TICK_WATCHER->is_active;
		2828	return if $Coro::current == $Coro::main;
		2829
		2830	my $signal = new Coro::Signal;
		2831	push @WAIT_FOR_TICK, $signal;
		2832	$signal->wait;
		2833	}
		2834
		2835	sub wait_for_tick_begin {
		2836	return unless $TICK_WATCHER->is_active;
		2837	return if $Coro::current == $Coro::main;
		2838
		2839	my $signal = new Coro::Signal;
		2840	push @WAIT_FOR_TICK_BEGIN, $signal;
		2841	$signal->wait;
		2842	}
		2843
		2844	my $min = 1e6;#d#
		2845	my $avg = 10;
2364	$TICK_WATCHER = Event->timer (	2846	$TICK_WATCHER = Event->timer (
2365	reentrant => 0,	2847	reentrant => 0,
		2848	parked => 1,
2366	prio => 0,	2849	prio => 0,
2367	at => $NEXT_TICK || $TICK,	2850	at => $NEXT_TICK || $TICK,
2368	data => WF_AUTOCANCEL,	2851	data => WF_AUTOCANCEL,
2369	cb => sub {	2852	cb => sub {
		2853	if ($Coro::current != $Coro::main) {
		2854	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2855	unless ++$bug_warning > 10;
		2856	return;
		2857	}
		2858
		2859	$NOW = $tick_start = Event::time;
		2860
2370	cf::server_tick; # one server iteration	2861	cf::server_tick; # one server iteration
		2862
		2863	0 && sync_job {#d#
		2864	for(1..10) {
		2865	my $t = Event::time;
		2866	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2867	or die;
		2868
		2869	$map->width (50);
		2870	$map->height (50);
		2871	$map->alloc;
		2872	$map->_load_objects ("/tmp/x.map", 1);
		2873	my $t = Event::time - $t;
		2874
		2875	#next unless $t < 0.0013;#d#
		2876	if ($t < $min) {
		2877	$min = $t;
		2878	}
		2879	$avg = $avg * 0.99 + $t * 0.01;
		2880	}
		2881	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2882	exit 0;
		2883	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2884	};
		2885
2371	$RUNTIME += $TICK;	2886	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;	2887	$NEXT_TICK += $TICK;
2373		2888
		2889	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2890	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2891	Coro::async_pool {
		2892	write_runtime
		2893	or warn "ERROR: unable to write runtime file: $!";
		2894	};
		2895	}
		2896
		2897	# my $AFTER = Event::time;
		2898	# warn $AFTER - $NOW;#d#
		2899
		2900	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2901	$sig->send;
		2902	}
		2903	while (my $sig = shift @WAIT_FOR_TICK) {
		2904	$sig->send;
		2905	}
		2906
		2907	$NOW = Event::time;
		2908
2374	# if we are delayed by four ticks or more, skip them all	2909	# if we are delayed by four ticks or more, skip them all
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2910	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2376		2911
2377	$TICK_WATCHER->at ($NEXT_TICK);	2912	$TICK_WATCHER->at ($NEXT_TICK);
2378	$TICK_WATCHER->start;	2913	$TICK_WATCHER->start;
		2914
		2915	$LOAD = ($NOW - $tick_start) / $TICK;
		2916	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2917
		2918	_post_tick;
		2919
		2920
2379	},	2921	},
2380	);	2922	);
2381		2923
		2924	{
2382	IO::AIO::max_poll_time $TICK * 0.2;	2925	BDB::max_poll_time $TICK * 0.1;
2383		2926	$BDB_POLL_WATCHER = Event->io (
2384	Event->io (	2927	reentrant => 0,
2385	fd => IO::AIO::poll_fileno,	2928	fd => BDB::poll_fileno,
2386	poll => 'r',	2929	poll => 'r',
2387	prio => 5,	2930	prio => 0,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391
2392	Event->timer (
2393	data => WF_AUTOCANCEL,	2931	data => WF_AUTOCANCEL,
2394	after => 0,	2932	cb => \&BDB::poll_cb,
2395	interval => 10,	2933	);
2396	cb => sub {	2934	BDB::min_parallel 8;
2397	(Coro::unblock_sub {	2935
2398	write_runtime	2936	BDB::set_sync_prepare {
2399	or warn "ERROR: unable to write runtime file: $!";	2937	my $status;
		2938	my $current = $Coro::current;
		2939	(
		2940	sub {
		2941	$status = $!;
		2942	$current->ready; undef $current;
		2943	},
		2944	sub {
		2945	Coro::schedule while defined $current;
		2946	$! = $status;
		2947	},
		2948	)
		2949	};
		2950
		2951	unless ($DB_ENV) {
		2952	$DB_ENV = BDB::db_env_create;
		2953
		2954	cf::sync_job {
		2955	eval {
		2956	BDB::db_env_open
		2957	$DB_ENV,
		2958	$BDBDIR,
		2959	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2960	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2961	0666;
		2962
		2963	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2964
		2965	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2966	$DB_ENV->set_lk_detect;
		2967	};
		2968
		2969	cf::cleanup "db_env_open(db): $@" if $@;
2400	})->();	2970	};
2401	},	2971	}
2402	);	2972	}
		2973
		2974	{
		2975	IO::AIO::min_parallel 8;
		2976
		2977	undef $Coro::AIO::WATCHER;
		2978	IO::AIO::max_poll_time $TICK * 0.1;
		2979	$AIO_POLL_WATCHER = Event->io (
		2980	reentrant => 0,
		2981	data => WF_AUTOCANCEL,
		2982	fd => IO::AIO::poll_fileno,
		2983	poll => 'r',
		2984	prio => 6,
		2985	cb => \&IO::AIO::poll_cb,
		2986	);
		2987	}
		2988
		2989	my $_log_backtrace;
		2990
		2991	sub _log_backtrace {
		2992	my ($msg, @addr) = @_;
		2993
		2994	$msg =~ s/\n//;
		2995
		2996	# limit the # of concurrent backtraces
		2997	if ($_log_backtrace < 2) {
		2998	++$_log_backtrace;
		2999	async {
		3000	my @bt = fork_call {
		3001	@addr = map { sprintf "%x", $_ } @addr;
		3002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3004	or die "addr2line: $!";
		3005
		3006	my @funcs;
		3007	my @res = <$fh>;
		3008	chomp for @res;
		3009	while (@res) {
		3010	my ($func, $line) = splice @res, 0, 2, ();
		3011	push @funcs, "[$func] $line";
		3012	}
		3013
		3014	@funcs
		3015	};
		3016
		3017	LOG llevInfo, "[ABT] $msg\n";
		3018	LOG llevInfo, "[ABT] $_\n" for @bt;
		3019	--$_log_backtrace;
		3020	};
		3021	} else {
		3022	LOG llevInfo, "[ABT] $msg\n";
		3023	LOG llevInfo, "[ABT] [suppressed]\n";
		3024	}
		3025	}
		3026
		3027	# load additional modules
		3028	use cf::pod;
2403		3029
2404	END { cf::emergency_save }	3030	END { cf::emergency_save }
2405		3031
2406	1	3032	1
2407		3033

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