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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.160 by root, Wed Jan 10 22:54:06 2007 UTC vs.
Revision 1.280 by root, Sat Jun 16 14:35:41 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
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# 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?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$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
		46
		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 = ();
38		51
39	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	53	our %EXTCMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
42		56
		57	our $RELOAD; # number of reloads so far
43	our @EVENT;	58	our @EVENT;
44	our $LIBDIR = datadir . "/ext";
45		59
46	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(!)
47	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
48	our $NEXT_TICK;	76	our $NEXT_TICK;
49	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;
50		82
51	our %CFG;	83	our %CFG;
52		84
53	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
54	our $RUNTIME;	86	our $RUNTIME;
55		87
56	our %PLAYER; # all users	88	our %PLAYER; # all users
57	our %MAP; # all maps	89	our %MAP; # all maps
58	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
59	our $RANDOM_MAPS = cf::localdir . "/random";
60		91
61	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
62	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	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 $tick_start; # for load detecting purposes
63		98
64	binmode STDOUT;	99	binmode STDOUT;
65	binmode STDERR;	100	binmode STDERR;
66		101
67	# read virtual server time, if available	102	# read virtual server time, if available
68	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
69	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
70	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
71	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
72	}	107	}
73		108
74	mkdir cf::localdir;	109	mkdir $_
75	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76	mkdir cf::localdir . "/" . cf::tmpdir;
77	mkdir cf::localdir . "/" . cf::uniquedir;
78	mkdir $RANDOM_MAPS;
79		111
80	# a special map that is always available
81	our $LINK_MAP;
82	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
83		115
84	#############################################################################	116	#############################################################################
85		117
86	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
87		119
…		…
94	=item $cf::RUNTIME	126	=item $cf::RUNTIME
95		127
96	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
97	every server tick.	129	every server tick.
98		130
99	=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
100		134
101	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
102	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.
103		139
104	=item $cf::NOW	140	=item $cf::NOW
105		141
106	The time of the last (current) server tick.	142	The time of the last (current) server tick.
107		143
108	=item $cf::TICK	144	=item $cf::TICK
109		145
110	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.
111		157
112	=item %cf::CFG	158	=item %cf::CFG
113		159
114	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
115	from wherever your confdir points to.	161	from wherever your confdir points to.
116		162
117	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
118		164
119	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
120	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	166	returns directly I<after> the tick processing (and consequently, can only wake one process
121	processing has been done. Call C<< ->wait >> on them to maximise the	167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
122	window of cpu time available, or simply to synchronise to the server tick.
123		168
124	=back	169	=back
125		170
126	=cut	171	=cut
127		172
128	BEGIN {	173	BEGIN {
129	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
130	my $msg = join "", @_;	175	my $msg = join "", @_;
131	utf8::encode $msg;
132		176
133	$msg .= "\n"	177	$msg .= "\n"
134	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
135		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
136	LOG llevError, $msg;	183	LOG llevError, $msg;
137	};	184	};
138	}	185	}
139		186
140	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
141	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
142	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
143	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
144	@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';
145	@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)
146		194
147	# 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
148	# within the Safe compartment.	196	# within the Safe compartment.
149	for my $pkg (qw(	197	for my $pkg (qw(
150	cf::global cf::attachable	198	cf::global cf::attachable
…		…
186	$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;
187	$d	235	$d
188	} || "[unable to dump $_[0]: '$@']";	236	} || "[unable to dump $_[0]: '$@']";
189	}	237	}
190		238
191	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
192		240
193	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
194		242
195	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
196		244
197	=cut
198
199	sub from_json($) {
200	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
201	JSON::Syck::Load $_[0]
202	}
203
204	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
205		246
206	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
207
208	=cut
209
210	sub to_json($) {
211	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
212	JSON::Syck::Dump $_[0]
213	}
214		248
215	=item cf::lock_wait $string	249	=item cf::lock_wait $string
216		250
217	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
218		252
…		…
224	returned.	258	returned.
225		259
226	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
227	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
228		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
229	=cut	267	=cut
230		268
231	our %LOCK;	269	our %LOCK;
232		270
233	sub lock_wait($) {	271	sub lock_wait($) {
…		…
252	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
253	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
254	}	292	}
255	}	293	}
256		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
257	sub freeze_mainloop {	301	sub freeze_mainloop {
258	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
259		303
260	my $guard = Coro::guard { $TICK_WATCHER->start };	304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
261	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
262	$guard	308	$guard
263	}	309	}
264		310
265	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
287		333
288	sub sync_job(&) {	334	sub sync_job(&) {
289	my ($job) = @_;	335	my ($job) = @_;
290		336
291	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
292	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
293	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
294		342
295	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
296	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
307		355
308	while ($busy) {	356	while ($busy) {
309	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
310	}	358	}
311		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
312	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
313	} else {	368	} else {
314	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
315		370
316	$job->()	371	$job->()
…		…
336		391
337	$coro	392	$coro
338	}	393	}
339		394
340	sub write_runtime {	395	sub write_runtime {
341	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";
342		404
343	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
344	or return;	406	or return;
345		407
		408	my $value = $cf::RUNTIME + 90 + 10;
346	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
347	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
348	and return;	413	and return;
349		414
		415	# always fsync - this file is important
350	aio_fsync $fh	416	aio_fsync $fh
351	and return;	417	and return;
352		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
353	close $fh	422	close $fh
354	or return;	423	or return;
355		424
356	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
357	and return;	426	and return;
358		427
		428	warn "runtime file written.\n";
		429
359	1	430	1
360	}	431	}
361		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
362	=back	444	=back
363		445
364	=cut	446	=cut
365
366	#############################################################################
367
368	package cf::path;
369
370	use overload
371	'""' => \&as_string;
372
373	# used to convert map paths into valid unix filenames by repalcing / by ∕
374	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
375
376	sub new {
377	my ($class, $path, $base) = @_;
378
379	$path = $path->as_string if ref $path;
380
381	my $self = bless { }, $class;
382
383	# {... are special paths that are not touched
384	# ?xxx/... are special absolute paths
385	# ?random/... random maps
386	# /! non-realised random map exit
387	# /... normal maps
388	# ~/... per-player maps without a specific player (DO NOT USE)
389	# ~user/... per-player map of a specific user
390
391	$path =~ s/$PATH_SEP/\//go;
392
393	if ($path =~ /^{/) {
394	# fine as it is
395	} elsif ($path =~ s{^\?random/}{}) {
396	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
397	$self->{random} = cf::from_json $data;
398	} else {
399	if ($path =~ s{^~([^/]+)?}{}) {
400	$self->{user_rel} = 1;
401
402	if (defined $1) {
403	$self->{user} = $1;
404	} elsif ($base =~ m{^~([^/]+)/}) {
405	$self->{user} = $1;
406	} else {
407	warn "cannot resolve user-relative path without user <$path,$base>\n";
408	}
409	} elsif ($path =~ /^\//) {
410	# already absolute
411	} else {
412	$base =~ s{[^/]+/?$}{};
413	return $class->new ("$base/$path");
414	}
415
416	for ($path) {
417	redo if s{/\.?/}{/};
418	redo if s{/[^/]+/\.\./}{/};
419	}
420	}
421
422	$self->{path} = $path;
423
424	$self
425	}
426
427	# the name / primary key / in-game path
428	sub as_string {
429	my ($self) = @_;
430
431	$self->{user_rel} ? "~$self->{user}$self->{path}"
432	: $self->{random} ? "?random/$self->{path}"
433	: $self->{path}
434	}
435
436	# the displayed name, this is a one way mapping
437	sub visible_name {
438	my ($self) = @_;
439
440	# if (my $rmp = $self->{random}) {
441	# # todo: be more intelligent about this
442	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
443	# } else {
444	$self->as_string
445	# }
446	}
447
448	# escape the /'s in the path
449	sub _escaped_path {
450	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
451	$path
452	}
453
454	# the original (read-only) location
455	sub load_path {
456	my ($self) = @_;
457
458	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
459	}
460
461	# the temporary/swap location
462	sub save_path {
463	my ($self) = @_;
464
465	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
466	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
467	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
468	}
469
470	# the unique path, might be eq to save_path
471	sub uniq_path {
472	my ($self) = @_;
473
474	$self->{user_rel} || $self->{random}
475	? undef
476	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
477	}
478
479	# return random map parameters, or undef
480	sub random_map_params {
481	my ($self) = @_;
482
483	$self->{random}
484	}
485
486	# this is somewhat ugly, but style maps do need special treatment
487	sub is_style_map {
488	$_[0]{path} =~ m{^/styles/}
489	}
490
491	package cf;
492		447
493	#############################################################################	448	#############################################################################
494		449
495	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
496		451
…		…
622	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
623	our @CB_MAP = ();	578	our @CB_MAP = ();
624		579
625	my %attachment;	580	my %attachment;
626		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
627	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
628	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
629		590
630	use sort 'stable';	591	use sort 'stable';
631		592
…		…
665	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
666		627
667	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
668	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
669	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
670	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
671		632
672	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
673	my $pkg = shift @arg;	634	my $pkg = shift @arg;
674		635
675	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
704	_attach $registry, $klass, @attach;	665	_attach $registry, $klass, @attach;
705	}	666	}
706		667
707	$obj->{$name} = \%arg;	668	$obj->{$name} = \%arg;
708	} else {	669	} else {
709	warn "object uses attachment '$name' that is not available, postponing.\n";	670	warn "object uses attachment '$name' which is not available, postponing.\n";
710	}	671	}
711		672
712	$obj->{_attachment}{$name} = undef;	673	$obj->{_attachment}{$name} = undef;
713	}	674	}
714		675
…		…
716	if (ref $_[0]) {	677	if (ref $_[0]) {
717	_object_attach @_;	678	_object_attach @_;
718	} else {	679	} else {
719	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
720	}	681	}
		682	_recalc_want;
721	};	683	};
722		684
723	# all those should be optimised	685	# all those should be optimised
724	sub cf::attachable::detach {	686	sub cf::attachable::detach {
725	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
728	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
729	reattach ($obj);	691	reattach ($obj);
730	} else {	692	} else {
731	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
732	}	694	}
		695	_recalc_want;
733	};	696	};
734		697
735	sub cf::attachable::attached {	698	sub cf::attachable::attached {
736	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
737		700
…		…
802	# object support	765	# object support
803		766
804	sub reattach {	767	sub reattach {
805	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
806	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
807		772
808	my $registry = $obj->registry;	773	my $registry = $obj->registry;
809		774
810	@$registry = ();	775	@$registry = ();
811		776
…		…
858	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
859		824
860	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
861	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
862	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
863	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
864	close $fh;	829	close $fh;
865		830
866	if (@$objs) {	831	if (@$objs) {
867	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) {
868	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
869	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
870	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
871	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
872	close $fh;	837	close $fh;
873	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
874	}	839	}
875	} else {	840	} else {
876	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
908	or return;	873	or return;
909	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
910	}	875	}
911		876
912	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
913	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
914	return ($data, $av);	879	return ($data, $av);
915	}	880	}
916		881
917	#############################################################################	882	#############################################################################
918	# command handling &c	883	# command handling &c
…		…
978		943
979	cf::override;	944	cf::override;
980	},	945	},
981	);	946	);
982		947
983	sub load_extension {
984	my ($path) = @_;
985
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991
992	warn "... loading '$path' into '$pkg'\n";
993
994	open my $fh, "<:utf8", $path
995	or die "$path: $!";
996
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @EXTS, $pkg;
1008	}
1009
1010	sub load_extensions {	948	sub load_extensions {
		949	cf::sync_job {
		950	my %todo;
		951
1011	for my $ext (<$LIBDIR/*.ext>) {	952	for my $path (<$LIBDIR/*.ext>) {
1012	next unless -r $ext;	953	next unless -r $path;
1013	eval {	954
1014	load_extension $ext;	955	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		956	my $base = $1;
		957	my $pkg = $1;
		958	$pkg =~ s/[^[:word:]]/_/g;
		959	$pkg = "ext::$pkg";
		960
		961	open my $fh, "<:utf8", $path
		962	or die "$path: $!";
		963
		964	my $source = do { local $/; <$fh> };
		965
		966	my %ext = (
		967	path => $path,
		968	base => $base,
		969	pkg => $pkg,
		970	);
		971
		972	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		973	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		974
		975	$ext{source} =
		976	"package $pkg; use strict; use utf8;\n"
		977	. "#line 1 \"$path\"\n{\n"
		978	. $source
		979	. "\n};\n1";
		980
		981	$todo{$base} = \%ext;
		982	}
		983
		984	my %done;
		985	while (%todo) {
		986	my $progress;
		987
		988	while (my ($k, $v) = each %todo) {
		989	for (split /,\s*/, $v->{meta}{depends}) {
		990	goto skip
		991	unless exists $done{$_};
		992	}
		993
		994	warn "... loading '$k' into '$v->{pkg}'\n";
		995
		996	unless (eval $v->{source}) {
		997	my $msg = $@ ? "$v->{path}: $@\n"
		998	: "$v->{base}: extension inactive.\n";
		999
		1000	if (exists $v->{meta}{mandatory}) {
		1001	warn $msg;
		1002	warn "mandatory extension failed to load, exiting.\n";
		1003	exit 1;
		1004	}
		1005
		1006	warn $msg;
		1007	}
		1008
		1009	$done{$k} = delete $todo{$k};
		1010	push @EXTS, $v->{pkg};
		1011	$progress = 1;
1015	1	1012	}
1016	} or warn "$ext not loaded: $@";	1013
		1014	skip:
		1015	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1016	unless $progress;
		1017	}
1017	}	1018	};
1018	}	1019	}
1019		1020
1020	#############################################################################	1021	#############################################################################
1021	# load/save/clean perl data associated with a map
1022
1023	*cf::mapsupport::on_clean = sub {
1024	my ($map) = @_;
1025
1026	my $path = $map->tmpname;
1027	defined $path or return;
1028
1029	unlink "$path.pst";
1030	};
1031
1032	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1033
1034	#############################################################################
1035		1022
1036	=head2 CORE EXTENSIONS	1023	=head2 CORE EXTENSIONS
1037		1024
1038	Functions and methods that extend core crossfire objects.	1025	Functions and methods that extend core crossfire objects.
1039		1026
…		…
1052	Returns the given player object, loading it if necessary (might block).	1039	Returns the given player object, loading it if necessary (might block).
1053		1040
1054	=cut	1041	=cut
1055		1042
1056	sub playerdir($) {	1043	sub playerdir($) {
1057	cf::localdir	1044	"$PLAYERDIR/"
1058	. "/"
1059	. cf::playerdir
1060	. "/"
1061	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1045	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1062	}	1046	}
1063		1047
1064	sub path($) {	1048	sub path($) {
1065	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1049	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1066		1050
1067	(playerdir $login) . "/$login.pl"	1051	(playerdir $login) . "/playerdata"
1068	}	1052	}
1069		1053
1070	sub find_active($) {	1054	sub find_active($) {
1071	$cf::PLAYER{$_[0]}	1055	$cf::PLAYER{$_[0]}
1072	and $cf::PLAYER{$_[0]}->active	1056	and $cf::PLAYER{$_[0]}->active
…		…
1075		1059
1076	sub exists($) {	1060	sub exists($) {
1077	my ($login) = @_;	1061	my ($login) = @_;
1078		1062
1079	$cf::PLAYER{$login}	1063	$cf::PLAYER{$login}
1080	or cf::sync_job { !aio_stat $login }	1064	or cf::sync_job { !aio_stat path $login }
1081	}	1065	}
1082		1066
1083	sub find($) {	1067	sub find($) {
1084	return $cf::PLAYER{$_[0]} || do {	1068	return $cf::PLAYER{$_[0]} || do {
1085	my $login = $_[0];	1069	my $login = $_[0];
1086		1070
1087	my $guard = cf::lock_acquire "user_find:$login";	1071	my $guard = cf::lock_acquire "user_find:$login";
1088		1072
1089	$cf::PLAYER{$_[0]} || do {	1073	$cf::PLAYER{$_[0]} || do {
		1074	# rename old playerfiles to new ones
		1075	#TODO: remove when no longer required
		1076	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1077	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1078	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1079	aio_unlink +(playerdir $login) . "/$login.pl";
		1080
1090	my $pl = load_pl path $login	1081	my $pl = load_pl path $login
1091	or return;	1082	or return;
1092	$cf::PLAYER{$login} = $pl	1083	$cf::PLAYER{$login} = $pl
1093	}	1084	}
1094	}	1085	}
…		…
1131		1122
1132	=cut	1123	=cut
1133		1124
1134	sub quit_character {	1125	sub quit_character {
1135	my ($pl) = @_;	1126	my ($pl) = @_;
		1127
		1128	my $name = $pl->ob->name;
1136		1129
1137	$pl->{deny_save} = 1;	1130	$pl->{deny_save} = 1;
1138	$pl->password ("*"); # this should lock out the player until we nuked the dir	1131	$pl->password ("*"); # this should lock out the player until we nuked the dir
1139		1132
1140	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1133	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1145	my $path = playerdir $pl;	1138	my $path = playerdir $pl;
1146	my $temp = "$path~$cf::RUNTIME~deleting~";	1139	my $temp = "$path~$cf::RUNTIME~deleting~";
1147	aio_rename $path, $temp;	1140	aio_rename $path, $temp;
1148	delete $cf::PLAYER{$pl->ob->name};	1141	delete $cf::PLAYER{$pl->ob->name};
1149	$pl->destroy;	1142	$pl->destroy;
		1143
		1144	my $prefix = qr<^~\Q$name\E/>;
		1145
		1146	# nuke player maps
		1147	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1148
1150	IO::AIO::aio_rmtree $temp;	1149	IO::AIO::aio_rmtree $temp;
		1150	}
		1151
		1152	=item $pl->kick
		1153
		1154	Kicks a player out of the game. This destroys the connection.
		1155
		1156	=cut
		1157
		1158	sub kick {
		1159	my ($pl, $kicker) = @_;
		1160
		1161	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1162	$pl->killer ("kicked");
		1163	$pl->ns->destroy;
1151	}	1164	}
1152		1165
1153	=item cf::player::list_logins	1166	=item cf::player::list_logins
1154		1167
1155	Returns am arrayref of all valid playernames in the system, can take a	1168	Returns am arrayref of all valid playernames in the system, can take a
1156	while and may block, so not sync_job-capable, ever.	1169	while and may block, so not sync_job-capable, ever.
1157		1170
1158	=cut	1171	=cut
1159		1172
1160	sub list_logins {	1173	sub list_logins {
1161	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1174	my $dirs = aio_readdir $PLAYERDIR
1162	or return [];	1175	or return [];
1163		1176
1164	my @logins;	1177	my @logins;
1165		1178
1166	for my $login (@$dirs) {	1179	for my $login (@$dirs) {
…		…
1175	\@logins	1188	\@logins
1176	}	1189	}
1177		1190
1178	=item $player->maps	1191	=item $player->maps
1179		1192
1180	Returns an arrayref of cf::path's of all maps that are private for this	1193	Returns an arrayref of map paths that are private for this
1181	player. May block.	1194	player. May block.
1182		1195
1183	=cut	1196	=cut
1184		1197
1185	sub maps($) {	1198	sub maps($) {
1186	my ($pl) = @_;	1199	my ($pl) = @_;
		1200
		1201	$pl = ref $pl ? $pl->ob->name : $pl;
1187		1202
1188	my $files = aio_readdir playerdir $pl	1203	my $files = aio_readdir playerdir $pl
1189	or return;	1204	or return;
1190		1205
1191	my @paths;	1206	my @paths;
…		…
1193	for (@$files) {	1208	for (@$files) {
1194	utf8::decode $_;	1209	utf8::decode $_;
1195	next if /\.(?:pl|pst)$/;	1210	next if /\.(?:pl|pst)$/;
1196	next unless /^$PATH_SEP/o;	1211	next unless /^$PATH_SEP/o;
1197		1212
1198	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1213	push @paths, cf::map::normalise "~$pl/$_";
1199	}	1214	}
1200		1215
1201	\@paths	1216	\@paths
1202	}	1217	}
1203		1218
1204	=item $player->ext_reply ($msgid, $msgtype, %msg)	1219	=item $player->ext_reply ($msgid, %msg)
1205		1220
1206	Sends an ext reply to the player.	1221	Sends an ext reply to the player.
1207		1222
1208	=cut	1223	=cut
1209		1224
1210	sub ext_reply($$$%) {	1225	sub ext_reply($$%) {
1211	my ($self, $id, %msg) = @_;	1226	my ($self, $id, %msg) = @_;
1212		1227
1213	$msg{msgid} = $id;	1228	$msg{msgid} = $id;
1214		1229
1215	$self->send ("ext " . cf::to_json \%msg);	1230	$self->send ("ext " . cf::to_json \%msg);
1216	}	1231	}
1217		1232
1218	package cf;	1233	=item $player->ext_event ($type, %msg)
		1234
		1235	Sends an ext event to the client.
		1236
		1237	=cut
		1238
		1239	sub ext_event($$%) {
		1240	my ($self, $type, %msg) = @_;
		1241
		1242	$self->ns->ext_event ($type, %msg);
		1243	}
		1244
		1245	=head3 cf::region
		1246
		1247	=over 4
		1248
		1249	=cut
		1250
		1251	package cf::region;
		1252
		1253	=item cf::region::find_by_path $path
		1254
		1255	Tries to decuce the probable region for a map knowing only its path.
		1256
		1257	=cut
		1258
		1259	sub find_by_path($) {
		1260	my ($path) = @_;
		1261
		1262	my ($match, $specificity);
		1263
		1264	for my $region (list) {
		1265	if ($region->match && $path =~ $region->match) {
		1266	($match, $specificity) = ($region, $region->specificity)
		1267	if $region->specificity > $specificity;
		1268	}
		1269	}
		1270
		1271	$match
		1272	}
1219		1273
1220	=back	1274	=back
1221
1222		1275
1223	=head3 cf::map	1276	=head3 cf::map
1224		1277
1225	=over 4	1278	=over 4
1226		1279
…		…
1229	package cf::map;	1282	package cf::map;
1230		1283
1231	use Fcntl;	1284	use Fcntl;
1232	use Coro::AIO;	1285	use Coro::AIO;
1233		1286
		1287	use overload
		1288	'""' => \&as_string,
		1289	fallback => 1;
		1290
1234	our $MAX_RESET = 3600;	1291	our $MAX_RESET = 3600;
1235	our $DEFAULT_RESET = 3000;	1292	our $DEFAULT_RESET = 3000;
1236		1293
1237	sub generate_random_map {	1294	sub generate_random_map {
1238	my ($path, $rmp) = @_;	1295	my ($self, $rmp) = @_;
1239
1240	# mit "rum" bekleckern, nicht	1296	# mit "rum" bekleckern, nicht
1241	cf::map::_create_random_map	1297	$self->_create_random_map (
1242	$path,
1243	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1298	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1244	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1299	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1245	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1300	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1246	$rmp->{exit_on_final_map},	1301	$rmp->{exit_on_final_map},
1247	$rmp->{xsize}, $rmp->{ysize},	1302	$rmp->{xsize}, $rmp->{ysize},
1248	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1303	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1249	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1304	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1250	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1305	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1251	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1306	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1252	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1307	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1253	(cf::region::find $rmp->{region})	1308	(cf::region::find $rmp->{region}), $rmp->{custom}
		1309	)
		1310	}
		1311
		1312	=item cf::map->register ($regex, $prio)
		1313
		1314	Register a handler for the map path matching the given regex at the
		1315	givne priority (higher is better, built-in handlers have priority 0, the
		1316	default).
		1317
		1318	=cut
		1319
		1320	sub register {
		1321	my (undef, $regex, $prio) = @_;
		1322	my $pkg = caller;
		1323
		1324	no strict;
		1325	push @{"$pkg\::ISA"}, __PACKAGE__;
		1326
		1327	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1328	}
		1329
		1330	# also paths starting with '/'
		1331	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1332
		1333	sub thawer_merge {
		1334	my ($self, $merge) = @_;
		1335
		1336	# we have to keep some variables in memory intact
		1337	local $self->{path};
		1338	local $self->{load_path};
		1339
		1340	$self->SUPER::thawer_merge ($merge);
		1341	}
		1342
		1343	sub normalise {
		1344	my ($path, $base) = @_;
		1345
		1346	$path = "$path"; # make sure its a string
		1347
		1348	$path =~ s/\.map$//;
		1349
		1350	# map plan:
		1351	#
		1352	# /! non-realised random map exit (special hack!)
		1353	# {... are special paths that are not being touched
		1354	# ?xxx/... are special absolute paths
		1355	# ?random/... random maps
		1356	# /... normal maps
		1357	# ~user/... per-player map of a specific user
		1358
		1359	$path =~ s/$PATH_SEP/\//go;
		1360
		1361	# treat it as relative path if it starts with
		1362	# something that looks reasonable
		1363	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1364	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1365
		1366	$base =~ s{[^/]+/?$}{};
		1367	$path = "$base/$path";
		1368	}
		1369
		1370	for ($path) {
		1371	redo if s{//}{/};
		1372	redo if s{/\.?/}{/};
		1373	redo if s{/[^/]+/\.\./}{/};
		1374	}
		1375
		1376	$path
		1377	}
		1378
		1379	sub new_from_path {
		1380	my (undef, $path, $base) = @_;
		1381
		1382	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1383
		1384	$path = normalise $path, $base;
		1385
		1386	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1387	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1388	my $self = bless cf::map::new, $pkg;
		1389	$self->{path} = $path; $self->path ($path);
		1390	$self->init; # pass $1 etc.
		1391	return $self;
		1392	}
		1393	}
		1394
		1395	Carp::carp "unable to resolve path '$path' (base '$base').";
		1396	()
		1397	}
		1398
		1399	sub init {
		1400	my ($self) = @_;
		1401
		1402	$self
		1403	}
		1404
		1405	sub as_string {
		1406	my ($self) = @_;
		1407
		1408	"$self->{path}"
		1409	}
		1410
		1411	# the displayed name, this is a one way mapping
		1412	sub visible_name {
		1413	&as_string
		1414	}
		1415
		1416	# the original (read-only) location
		1417	sub load_path {
		1418	my ($self) = @_;
		1419
		1420	"$MAPDIR/$self->{path}.map"
		1421	}
		1422
		1423	# the temporary/swap location
		1424	sub save_path {
		1425	my ($self) = @_;
		1426
		1427	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1428	"$TMPDIR/$path.map"
		1429	}
		1430
		1431	# the unique path, undef == no special unique path
		1432	sub uniq_path {
		1433	my ($self) = @_;
		1434
		1435	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1436	"$UNIQUEDIR/$path"
1254	}	1437	}
1255		1438
1256	# and all this just because we cannot iterate over	1439	# and all this just because we cannot iterate over
1257	# all maps in C++...	1440	# all maps in C++...
1258	sub change_all_map_light {	1441	sub change_all_map_light {
…		…
1260		1443
1261	$_->change_map_light ($change)	1444	$_->change_map_light ($change)
1262	for grep $_->outdoor, values %cf::MAP;	1445	for grep $_->outdoor, values %cf::MAP;
1263	}	1446	}
1264		1447
		1448	sub decay_objects {
		1449	my ($self) = @_;
		1450
		1451	return if $self->{deny_reset};
		1452
		1453	$self->do_decay_objects;
		1454	}
		1455
		1456	sub unlink_save {
		1457	my ($self) = @_;
		1458
		1459	utf8::encode (my $save = $self->save_path);
		1460	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1461	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1462	}
		1463
1265	sub try_load_header($) {	1464	sub load_header_from($) {
1266	my ($path) = @_;	1465	my ($self, $path) = @_;
1267		1466
1268	utf8::encode $path;	1467	utf8::encode $path;
1269	aio_open $path, O_RDONLY, 0	1468	#aio_open $path, O_RDONLY, 0
		1469	# or return;
		1470
		1471	$self->_load_header ($path)
1270	or return;	1472	or return;
1271		1473
1272	my $map = cf::map::new	1474	$self->{load_path} = $path;
		1475
		1476	1
		1477	}
		1478
		1479	sub load_header_orig {
		1480	my ($self) = @_;
		1481
		1482	$self->load_header_from ($self->load_path)
		1483	}
		1484
		1485	sub load_header_temp {
		1486	my ($self) = @_;
		1487
		1488	$self->load_header_from ($self->save_path)
		1489	}
		1490
		1491	sub prepare_temp {
		1492	my ($self) = @_;
		1493
		1494	$self->last_access ((delete $self->{last_access})
		1495	|| $cf::RUNTIME); #d#
		1496	# safety
		1497	$self->{instantiate_time} = $cf::RUNTIME
		1498	if $self->{instantiate_time} > $cf::RUNTIME;
		1499	}
		1500
		1501	sub prepare_orig {
		1502	my ($self) = @_;
		1503
		1504	$self->{load_original} = 1;
		1505	$self->{instantiate_time} = $cf::RUNTIME;
		1506	$self->last_access ($cf::RUNTIME);
		1507	$self->instantiate;
		1508	}
		1509
		1510	sub load_header {
		1511	my ($self) = @_;
		1512
		1513	if ($self->load_header_temp) {
		1514	$self->prepare_temp;
		1515	} else {
		1516	$self->load_header_orig
1273	or return;	1517	or return;
		1518	$self->prepare_orig;
		1519	}
1274		1520
1275	# for better error messages only, will be overwritten	1521	$self->{deny_reset} = 1
1276	$map->path ($path);	1522	if $self->no_reset;
1277		1523
1278	$map->load_header ($path)	1524	$self->default_region (cf::region::find_by_path $self->{path})
1279	or return;	1525	unless $self->default_region;
1280		1526
1281	$map->{load_path} = $path;	1527	1
1282
1283	$map
1284	}	1528	}
1285		1529
1286	sub find;	1530	sub find;
1287	sub find {	1531	sub find {
1288	my ($path, $origin) = @_;	1532	my ($path, $origin) = @_;
1289		1533
1290	#warn "find<$path,$origin>\n";#d#
1291
1292	$path = new cf::path $path, $origin && $origin->path;	1534	$path = normalise $path, $origin && $origin->path;
1293	my $key = $path->as_string;
1294		1535
1295	cf::lock_wait "map_find:$key";	1536	cf::lock_wait "map_find:$path";
1296		1537
1297	$cf::MAP{$key} || do {	1538	$cf::MAP{$path} || do {
1298	my $guard = cf::lock_acquire "map_find:$key";	1539	my $guard = cf::lock_acquire "map_find:$path";
1299		1540	my $map = new_from_path cf::map $path
1300	# do it the slow way
1301	my $map = try_load_header $path->save_path;
1302
1303	Coro::cede;
1304
1305	if ($map) {
1306	$map->last_access ((delete $map->{last_access})
1307	|| $cf::RUNTIME); #d#
1308	# safety
1309	$map->{instantiate_time} = $cf::RUNTIME
1310	if $map->{instantiate_time} > $cf::RUNTIME;
1311	} else {
1312	if (my $rmp = $path->random_map_params) {
1313	$map = generate_random_map $key, $rmp;
1314	} else {
1315	$map = try_load_header $path->load_path;
1316	}
1317
1318	$map or return;	1541	or return;
1319		1542
1320	$map->{load_original} = 1;
1321	$map->{instantiate_time} = $cf::RUNTIME;
1322	$map->last_access ($cf::RUNTIME);
1323	$map->instantiate;
1324
1325	# per-player maps become, after loading, normal maps
1326	$map->per_player (0) if $path->{user_rel};
1327	}
1328
1329	$map->path ($key);
1330	$map->{path} = $path;
1331	$map->{last_save} = $cf::RUNTIME;	1543	$map->{last_save} = $cf::RUNTIME;
1332		1544
1333	Coro::cede;	1545	$map->load_header
		1546	or return;
1334		1547
1335	if ($map->should_reset) {	1548	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1549	# doing this can freeze the server in a sync job, obviously
		1550	#$cf::WAIT_FOR_TICK->wait;
1336	$map->reset;	1551	$map->reset;
1337	undef $guard;	1552	undef $guard;
1338	$map = find $path	1553	return find $path;
1339	or return;
1340	}	1554	}
1341		1555
1342	$cf::MAP{$key} = $map	1556	$cf::MAP{$path} = $map
1343	}	1557	}
1344	}	1558	}
		1559
		1560	sub pre_load { }
		1561	sub post_load { }
1345		1562
1346	sub load {	1563	sub load {
1347	my ($self) = @_;	1564	my ($self) = @_;
1348		1565
		1566	local $self->{deny_reset} = 1; # loading can take a long time
		1567
1349	my $path = $self->{path};	1568	my $path = $self->{path};
		1569
		1570	{
1350	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1571	my $guard = cf::lock_acquire "map_load:$path";
1351		1572
1352	return if $self->in_memory != cf::MAP_SWAPPED;	1573	return if $self->in_memory != cf::MAP_SWAPPED;
1353		1574
1354	$self->in_memory (cf::MAP_LOADING);	1575	$self->in_memory (cf::MAP_LOADING);
1355		1576
1356	$self->alloc;	1577	$self->alloc;
		1578
		1579	$self->pre_load;
		1580	Coro::cede;
		1581
1357	$self->load_objects ($self->{load_path}, 1)	1582	$self->_load_objects ($self->{load_path}, 1)
1358	or return;	1583	or return;
1359		1584
1360	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1585	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1361	if delete $self->{load_original};	1586	if delete $self->{load_original};
1362		1587
1363	if (my $uniq = $path->uniq_path) {	1588	if (my $uniq = $self->uniq_path) {
1364	utf8::encode $uniq;	1589	utf8::encode $uniq;
1365	if (aio_open $uniq, O_RDONLY, 0) {	1590	if (aio_open $uniq, O_RDONLY, 0) {
1366	$self->clear_unique_items;	1591	$self->clear_unique_items;
1367	$self->load_objects ($uniq, 0);	1592	$self->_load_objects ($uniq, 0);
1368	}	1593	}
1369	}	1594	}
1370		1595
1371	Coro::cede;	1596	Coro::cede;
1372
1373	# now do the right thing for maps	1597	# now do the right thing for maps
1374	$self->link_multipart_objects;	1598	$self->link_multipart_objects;
1375
1376	if ($self->{path}->is_style_map) {
1377	$self->{deny_save} = 1;
1378	$self->{deny_reset} = 1;
1379	} else {
1380	$self->fix_auto_apply;
1381	$self->decay_objects;
1382	$self->update_buttons;
1383	$self->set_darkness_map;
1384	$self->difficulty ($self->estimate_difficulty)	1599	$self->difficulty ($self->estimate_difficulty)
1385	unless $self->difficulty;	1600	unless $self->difficulty;
		1601	Coro::cede;
		1602
		1603	unless ($self->{deny_activate}) {
		1604	$self->decay_objects;
		1605	$self->fix_auto_apply;
		1606	$self->update_buttons;
		1607	Coro::cede;
		1608	$self->set_darkness_map;
		1609	Coro::cede;
1386	$self->activate;	1610	$self->activate;
1387	}	1611	}
1388		1612
1389	Coro::cede;
1390
1391	$self->in_memory (cf::MAP_IN_MEMORY);	1613	$self->in_memory (cf::MAP_IN_MEMORY);
		1614	}
		1615
		1616	$self->post_load;
		1617	}
		1618
		1619	sub customise_for {
		1620	my ($self, $ob) = @_;
		1621
		1622	return find "~" . $ob->name . "/" . $self->{path}
		1623	if $self->per_player;
		1624
		1625	# return find "?party/" . $ob->name . "/" . $self->{path}
		1626	# if $self->per_party;
		1627
		1628	$self
1392	}	1629	}
1393		1630
1394	# find and load all maps in the 3x3 area around a map	1631	# find and load all maps in the 3x3 area around a map
1395	sub load_diag {	1632	sub load_diag {
1396	my ($map) = @_;	1633	my ($map) = @_;
…		…
1426		1663
1427	cf::sync_job { $map->load };	1664	cf::sync_job { $map->load };
1428	}	1665	}
1429		1666
1430	our %MAP_PREFETCH;	1667	our %MAP_PREFETCH;
1431	our $MAP_PREFETCHER = Coro::async {	1668	our $MAP_PREFETCHER = undef;
1432	while () {
1433	while (%MAP_PREFETCH) {
1434	my $key = each %MAP_PREFETCH
1435	or next;
1436	my $path = delete $MAP_PREFETCH{$key};
1437
1438	my $map = find $path
1439	or next;
1440	$map->load;
1441	}
1442	Coro::schedule;
1443	}
1444	};
1445		1669
1446	sub find_async {	1670	sub find_async {
1447	my ($path, $origin) = @_;	1671	my ($path, $origin) = @_;
1448		1672
1449	$path = new cf::path $path, $origin && $origin->path;	1673	$path = normalise $path, $origin && $origin->{path};
1450	my $key = $path->as_string;
1451		1674
1452	if (my $map = $cf::MAP{$key}) {	1675	if (my $map = $cf::MAP{$path}) {
1453	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1676	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1454	}	1677	}
1455		1678
1456	$MAP_PREFETCH{$key} = $path;	1679	undef $MAP_PREFETCH{$path};
		1680	$MAP_PREFETCHER ||= cf::async {
		1681	while (%MAP_PREFETCH) {
		1682	for my $path (keys %MAP_PREFETCH) {
		1683	my $map = find $path
		1684	or next;
		1685	$map->load;
		1686
		1687	delete $MAP_PREFETCH{$path};
		1688	}
		1689	}
		1690	undef $MAP_PREFETCHER;
		1691	};
1457	$MAP_PREFETCHER->ready;	1692	$MAP_PREFETCHER->prio (6);
1458		1693
1459	()	1694	()
1460	}	1695	}
1461		1696
1462	sub save {	1697	sub save {
…		…
1466		1701
1467	$self->{last_save} = $cf::RUNTIME;	1702	$self->{last_save} = $cf::RUNTIME;
1468		1703
1469	return unless $self->dirty;	1704	return unless $self->dirty;
1470		1705
1471	my $save = $self->{path}->save_path; utf8::encode $save;	1706	my $save = $self->save_path; utf8::encode $save;
1472	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1707	my $uniq = $self->uniq_path; utf8::encode $uniq;
1473		1708
1474	$self->{load_path} = $save;	1709	$self->{load_path} = $save;
1475		1710
1476	return if $self->{deny_save};	1711	return if $self->{deny_save};
1477		1712
…		…
1480	cf::async {	1715	cf::async {
1481	$_->contr->save for $self->players;	1716	$_->contr->save for $self->players;
1482	};	1717	};
1483		1718
1484	if ($uniq) {	1719	if ($uniq) {
1485	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1720	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1486	$self->save_objects ($uniq, cf::IO_UNIQUES);	1721	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1487	} else {	1722	} else {
1488	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1723	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1489	}	1724	}
1490	}	1725	}
1491		1726
1492	sub swap_out {	1727	sub swap_out {
1493	my ($self) = @_;	1728	my ($self) = @_;
…		…
1507		1742
1508	sub reset_at {	1743	sub reset_at {
1509	my ($self) = @_;	1744	my ($self) = @_;
1510		1745
1511	# TODO: safety, remove and allow resettable per-player maps	1746	# TODO: safety, remove and allow resettable per-player maps
1512	return 1e99 if $self->{path}{user_rel};
1513	return 1e99 if $self->{deny_reset};	1747	return 1e99 if $self->{deny_reset};
1514		1748
1515	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1749	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1516	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1750	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1517		1751
…		…
1522	my ($self) = @_;	1756	my ($self) = @_;
1523		1757
1524	$self->reset_at <= $cf::RUNTIME	1758	$self->reset_at <= $cf::RUNTIME
1525	}	1759	}
1526		1760
1527	sub unlink_save {
1528	my ($self) = @_;
1529
1530	utf8::encode (my $save = $self->{path}->save_path);
1531	aioreq_pri 3; IO::AIO::aio_unlink $save;
1532	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1533	}
1534
1535	sub rename {
1536	my ($self, $new_path) = @_;
1537
1538	$self->unlink_save;
1539
1540	delete $cf::MAP{$self->path};
1541	$self->{path} = new cf::path $new_path;
1542	$self->path ($self->{path}->as_string);
1543	$cf::MAP{$self->path} = $self;
1544
1545	$self->save;
1546	}
1547
1548	sub reset {	1761	sub reset {
1549	my ($self) = @_;	1762	my ($self) = @_;
1550		1763
1551	my $lock = cf::lock_acquire "map_data:" . $self->path;	1764	my $lock = cf::lock_acquire "map_data:$self->{path}";
1552		1765
1553	return if $self->players;	1766	return if $self->players;
1554	return if $self->{path}{user_rel};#d#
1555		1767
1556	warn "resetting map ", $self->path;#d#	1768	warn "resetting map ", $self->path;
		1769
		1770	$self->in_memory (cf::MAP_SWAPPED);
		1771
		1772	# need to save uniques path
		1773	unless ($self->{deny_save}) {
		1774	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1775
		1776	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1777	if $uniq;
		1778	}
1557		1779
1558	delete $cf::MAP{$self->path};	1780	delete $cf::MAP{$self->path};
		1781
		1782	$self->clear;
1559		1783
1560	$_->clear_links_to ($self) for values %cf::MAP;	1784	$_->clear_links_to ($self) for values %cf::MAP;
1561		1785
1562	$self->unlink_save;	1786	$self->unlink_save;
1563	$self->destroy;	1787	$self->destroy;
…		…
1566	my $nuke_counter = "aaaa";	1790	my $nuke_counter = "aaaa";
1567		1791
1568	sub nuke {	1792	sub nuke {
1569	my ($self) = @_;	1793	my ($self) = @_;
1570		1794
		1795	delete $cf::MAP{$self->path};
		1796
		1797	$self->unlink_save;
		1798
		1799	bless $self, "cf::map";
		1800	delete $self->{deny_reset};
1571	$self->{deny_save} = 1;	1801	$self->{deny_save} = 1;
1572	$self->reset_timeout (1);	1802	$self->reset_timeout (1);
1573	$self->rename ("{nuke}/" . ($nuke_counter++));	1803	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1804
		1805	$cf::MAP{$self->path} = $self;
		1806
1574	$self->reset; # polite request, might not happen	1807	$self->reset; # polite request, might not happen
1575	}	1808	}
1576		1809
1577	sub customise_for {	1810	=item $maps = cf::map::tmp_maps
1578	my ($map, $ob) = @_;
1579		1811
1580	if ($map->per_player) {	1812	Returns an arrayref with all map paths of currently instantiated and saved
1581	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1813	maps. May block.
		1814
		1815	=cut
		1816
		1817	sub tmp_maps() {
1582	}	1818	[
		1819	map {
		1820	utf8::decode $_;
		1821	/\.map$/
		1822	? normalise $_
		1823	: ()
		1824	} @{ aio_readdir $TMPDIR or [] }
		1825	]
		1826	}
1583		1827
1584	$map	1828	=item $maps = cf::map::random_maps
		1829
		1830	Returns an arrayref with all map paths of currently instantiated and saved
		1831	random maps. May block.
		1832
		1833	=cut
		1834
		1835	sub random_maps() {
		1836	[
		1837	map {
		1838	utf8::decode $_;
		1839	/\.map$/
		1840	? normalise "?random/$_"
		1841	: ()
		1842	} @{ aio_readdir $RANDOMDIR or [] }
		1843	]
1585	}	1844	}
1586		1845
1587	=item cf::map::unique_maps	1846	=item cf::map::unique_maps
1588		1847
1589	Returns an arrayref of cf::path's of all shared maps that have	1848	Returns an arrayref of paths of all shared maps that have
1590	instantiated unique items. May block.	1849	instantiated unique items. May block.
1591		1850
1592	=cut	1851	=cut
1593		1852
1594	sub unique_maps() {	1853	sub unique_maps() {
1595	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1854	[
1596	or return;	1855	map {
1597
1598	my @paths;
1599
1600	for (@$files) {
1601	utf8::decode $_;	1856	utf8::decode $_;
1602	next if /\.pst$/;	1857	/\.map$/
1603	next unless /^$PATH_SEP/o;	1858	? normalise $_
1604		1859	: ()
1605	push @paths, new cf::path $_;	1860	} @{ aio_readdir $UNIQUEDIR or [] }
1606	}	1861	]
1607
1608	\@paths
1609	}	1862	}
1610		1863
1611	package cf;	1864	package cf;
1612		1865
1613	=back	1866	=back
…		…
1685		1938
1686	=item $player_object->enter_link	1939	=item $player_object->enter_link
1687		1940
1688	Freezes the player and moves him/her to a special map (C<{link}>).	1941	Freezes the player and moves him/her to a special map (C<{link}>).
1689		1942
1690	The player should be reaosnably safe there for short amounts of time. You	1943	The player should be reasonably safe there for short amounts of time. You
1691	I<MUST> call C<leave_link> as soon as possible, though.	1944	I<MUST> call C<leave_link> as soon as possible, though.
1692		1945
		1946	Will never block.
		1947
1693	=item $player_object->leave_link ($map, $x, $y)	1948	=item $player_object->leave_link ($map, $x, $y)
1694		1949
1695	Moves the player out of the specila link map onto the given map. If the	1950	Moves the player out of the special C<{link}> map onto the specified
1696	map is not valid (or omitted), the player will be moved back to the	1951	map. If the map is not valid (or omitted), the player will be moved back
1697	location he/she was before the call to C<enter_link>, or, if that fails,	1952	to the location he/she was before the call to C<enter_link>, or, if that
1698	to the emergency map position.	1953	fails, to the emergency map position.
1699		1954
1700	Might block.	1955	Might block.
1701		1956
1702	=cut	1957	=cut
		1958
		1959	sub link_map {
		1960	unless ($LINK_MAP) {
		1961	$LINK_MAP = cf::map::find "{link}"
		1962	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1963	$LINK_MAP->load;
		1964	}
		1965
		1966	$LINK_MAP
		1967	}
1703		1968
1704	sub cf::object::player::enter_link {	1969	sub cf::object::player::enter_link {
1705	my ($self) = @_;	1970	my ($self) = @_;
1706		1971
1707	$self->deactivate_recursive;	1972	$self->deactivate_recursive;
1708		1973
1709	return if $self->map == $LINK_MAP;	1974	return if UNIVERSAL::isa $self->map, "ext::map_link";
1710		1975
1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1976	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1712	if $self->map;	1977	if $self->map && $self->map->{path} ne "{link}";
1713		1978
1714	$self->enter_map ($LINK_MAP, 20, 20);	1979	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1715	}	1980	}
1716		1981
1717	sub cf::object::player::leave_link {	1982	sub cf::object::player::leave_link {
1718	my ($self, $map, $x, $y) = @_;	1983	my ($self, $map, $x, $y) = @_;
		1984
		1985	return unless $self->contr->active;
1719		1986
1720	my $link_pos = delete $self->{_link_pos};	1987	my $link_pos = delete $self->{_link_pos};
1721		1988
1722	unless ($map) {	1989	unless ($map) {
1723	# restore original map position	1990	# restore original map position
…		…
1741	$map->load;	2008	$map->load;
1742	$map->load_diag;	2009	$map->load_diag;
1743		2010
1744	return unless $self->contr->active;	2011	return unless $self->contr->active;
1745	$self->activate_recursive;	2012	$self->activate_recursive;
		2013
		2014	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1746	$self->enter_map ($map, $x, $y);	2015	$self->enter_map ($map, $x, $y);
1747	}	2016	}
1748		2017
1749	cf::player->attach (
1750	on_logout => sub {
1751	my ($pl) = @_;
1752
1753	# abort map switching before logout
1754	if ($pl->ob->{_link_pos}) {
1755	cf::sync_job {
1756	$pl->ob->leave_link
1757	};
1758	}
1759	},
1760	on_login => sub {
1761	my ($pl) = @_;
1762
1763	# try to abort aborted map switching on player login :)
1764	# should happen only on crashes
1765	if ($pl->ob->{_link_pos}) {
1766	$pl->ob->enter_link;
1767	(async {
1768	# we need this sleep as the login has a concurrent enter_exit running
1769	# and this sleep increases chances of the player not ending up in scorn
1770	$pl->ob->reply (undef,
1771	"There was an internal problem at your last logout, "
1772	. "the server will try to bring you to your intended destination in a second.",
1773	cf::NDI_RED);
1774	Coro::Timer::sleep 1;
1775	$pl->ob->leave_link;
1776	})->prio (2);
1777	}
1778	},
1779	);
1780
1781	=item $player_object->goto ($path, $x, $y)	2018	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1782		2019
		2020	Moves the player to the given map-path and coordinates by first freezing
		2021	her, loading and preparing them map, calling the provided $check callback
		2022	that has to return the map if sucecssful, and then unfreezes the player on
		2023	the new (success) or old (failed) map position.
		2024
1783	=cut	2025	=cut
		2026
		2027	our $GOTOGEN;
1784		2028
1785	sub cf::object::player::goto {	2029	sub cf::object::player::goto {
1786	my ($self, $path, $x, $y) = @_;	2030	my ($self, $path, $x, $y, $check) = @_;
1787		2031
1788	$path = new cf::path $path;	2032	# do generation counting so two concurrent goto's will be executed in-order
		2033	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1789		2034
1790	$self->enter_link;	2035	$self->enter_link;
1791		2036
1792	(async {	2037	(async {
		2038	my $map = eval {
1793	my $map = cf::map::find $path->as_string;	2039	my $map = cf::map::find $path;
		2040
		2041	if ($map) {
1794	$map = $map->customise_for ($self) if $map;	2042	$map = $map->customise_for ($self);
1795		2043	$map = $check->($map) if $check && $map;
1796	# warn "entering ", $map->path, " at ($x, $y)\n"	2044	} else {
1797	# if $map;
1798
1799	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2045	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2046	}
1800		2047
		2048	$map
		2049	};
		2050
		2051	if ($@) {
		2052	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2053	LOG llevError | logBacktrace, Carp::longmess $@;
		2054	}
		2055
		2056	if ($gen == $self->{_goto_generation}) {
		2057	delete $self->{_goto_generation};
1801	$self->leave_link ($map, $x, $y);	2058	$self->leave_link ($map, $x, $y);
		2059	}
1802	})->prio (1);	2060	})->prio (1);
1803	}	2061	}
1804		2062
1805	=item $player_object->enter_exit ($exit_object)	2063	=item $player_object->enter_exit ($exit_object)
1806		2064
…		…
1808		2066
1809	sub parse_random_map_params {	2067	sub parse_random_map_params {
1810	my ($spec) = @_;	2068	my ($spec) = @_;
1811		2069
1812	my $rmp = { # defaults	2070	my $rmp = { # defaults
1813	xsize => 10,	2071	xsize => (cf::rndm 15, 40),
1814	ysize => 10,	2072	ysize => (cf::rndm 15, 40),
		2073	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2074	#layout => string,
1815	};	2075	};
1816		2076
1817	for (split /\n/, $spec) {	2077	for (split /\n/, $spec) {
1818	my ($k, $v) = split /\s+/, $_, 2;	2078	my ($k, $v) = split /\s+/, $_, 2;
1819		2079
…		…
1823	$rmp	2083	$rmp
1824	}	2084	}
1825		2085
1826	sub prepare_random_map {	2086	sub prepare_random_map {
1827	my ($exit) = @_;	2087	my ($exit) = @_;
		2088
		2089	my $guard = cf::lock_acquire "exit_prepare:$exit";
1828		2090
1829	# all this does is basically replace the /! path by	2091	# all this does is basically replace the /! path by
1830	# a new random map path (?random/...) with a seed	2092	# a new random map path (?random/...) with a seed
1831	# that depends on the exit object	2093	# that depends on the exit object
1832		2094
1833	my $rmp = parse_random_map_params $exit->msg;	2095	my $rmp = parse_random_map_params $exit->msg;
1834		2096
1835	if ($exit->map) {	2097	if ($exit->map) {
1836	$rmp->{region} = $exit->map->region_name;	2098	$rmp->{region} = $exit->region->name;
1837	$rmp->{origin_map} = $exit->map->path;	2099	$rmp->{origin_map} = $exit->map->path;
1838	$rmp->{origin_x} = $exit->x;	2100	$rmp->{origin_x} = $exit->x;
1839	$rmp->{origin_y} = $exit->y;	2101	$rmp->{origin_y} = $exit->y;
1840	}	2102	}
1841		2103
1842	$rmp->{random_seed} ||= $exit->random_seed;	2104	$rmp->{random_seed} ||= $exit->random_seed;
1843		2105
1844	my $data = cf::to_json $rmp;	2106	my $data = cf::to_json $rmp;
1845	my $md5 = Digest::MD5::md5_hex $data;	2107	my $md5 = Digest::MD5::md5_hex $data;
		2108	my $meta = "$RANDOMDIR/$md5.meta";
1846		2109
1847	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2110	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1848	aio_write $fh, 0, (length $data), $data, 0;	2111	aio_write $fh, 0, (length $data), $data, 0;
		2112	undef $fh;
		2113	aio_rename "$meta~", $meta;
1849		2114
1850	$exit->slaying ("?random/$md5");	2115	$exit->slaying ("?random/$md5");
1851	$exit->msg (undef);	2116	$exit->msg (undef);
1852	}	2117	}
1853	}	2118	}
1854		2119
1855	sub cf::object::player::enter_exit {	2120	sub cf::object::player::enter_exit {
1856	my ($self, $exit) = @_;	2121	my ($self, $exit) = @_;
1857		2122
1858	return unless $self->type == cf::PLAYER;	2123	return unless $self->type == cf::PLAYER;
		2124
		2125	if ($exit->slaying eq "/!") {
		2126	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2127	# the problem is that $exit might not survive long enough
		2128	# so it needs to be done right now, right here
		2129	cf::sync_job { prepare_random_map $exit };
		2130	}
		2131
		2132	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2133	my $hp = $exit->stats->hp;
		2134	my $sp = $exit->stats->sp;
1859		2135
1860	$self->enter_link;	2136	$self->enter_link;
1861		2137
1862	(async {	2138	(async {
1863	$self->deactivate_recursive; # just to be sure	2139	$self->deactivate_recursive; # just to be sure
1864	unless (eval {	2140	unless (eval {
1865	prepare_random_map $exit	2141	$self->goto ($slaying, $hp, $sp);
1866	if $exit->slaying eq "/!";
1867
1868	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1869	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1870		2142
1871	1;	2143	1;
1872	}) {	2144	}) {
1873	$self->message ("Something went wrong deep within the crossfire server. "	2145	$self->message ("Something went wrong deep within the crossfire server. "
1874	. "I'll try to bring you back to the map you were before. "	2146	. "I'll try to bring you back to the map you were before. "
1875	. "Please report this to the dungeon master!",	2147	. "Please report this to the dungeon master!",
1876	cf::NDI_UNIQUE | cf::NDI_RED);	2148	cf::NDI_UNIQUE | cf::NDI_RED);
1877		2149
1878	warn "ERROR in enter_exit: $@";	2150	warn "ERROR in enter_exit: $@";
1879	$self->leave_link;	2151	$self->leave_link;
1880	}	2152	}
1881	})->prio (1);	2153	})->prio (1);
…		…
1894		2166
1895	sub cf::client::send_drawinfo {	2167	sub cf::client::send_drawinfo {
1896	my ($self, $text, $flags) = @_;	2168	my ($self, $text, $flags) = @_;
1897		2169
1898	utf8::encode $text;	2170	utf8::encode $text;
1899	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2171	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1900	}	2172	}
1901		2173
		2174	=item $client->ext_event ($type, %msg)
		2175
		2176	Sends an exti event to the client.
		2177
		2178	=cut
		2179
		2180	sub cf::client::ext_event($$%) {
		2181	my ($self, $type, %msg) = @_;
		2182
		2183	$msg{msgtype} = "event_$type";
		2184	$self->send_packet ("ext " . cf::to_json \%msg);
		2185	}
1902		2186
1903	=item $success = $client->query ($flags, "text", \&cb)	2187	=item $success = $client->query ($flags, "text", \&cb)
1904		2188
1905	Queues a query to the client, calling the given callback with	2189	Queues a query to the client, calling the given callback with
1906	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2190	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1935	# get handled first	2219	# get handled first
1936	my $queue = delete $ns->{query_queue}	2220	my $queue = delete $ns->{query_queue}
1937	or return; # be conservative, not sure how that can happen, but we saw a crash here	2221	or return; # be conservative, not sure how that can happen, but we saw a crash here
1938		2222
1939	(shift @$queue)->[1]->($msg);	2223	(shift @$queue)->[1]->($msg);
		2224	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1940		2225
1941	push @{ $ns->{query_queue} }, @$queue;	2226	push @{ $ns->{query_queue} }, @$queue;
1942		2227
1943	if (@{ $ns->{query_queue} } == @$queue) {	2228	if (@{ $ns->{query_queue} } == @$queue) {
1944	if (@$queue) {	2229	if (@$queue) {
…		…
2002		2287
2003	# here we export the classes and methods available to script code	2288	# here we export the classes and methods available to script code
2004		2289
2005	=pod	2290	=pod
2006		2291
2007	The following fucntions and emthods are available within a safe environment:	2292	The following functions and methods are available within a safe environment:
2008		2293
2009	cf::object contr pay_amount pay_player map	2294	cf::object contr pay_amount pay_player map
2010	cf::object::player player	2295	cf::object::player player
2011	cf::player peaceful	2296	cf::player peaceful
2012	cf::map trigger	2297	cf::map trigger
…		…
2097	#############################################################################	2382	#############################################################################
2098		2383
2099	=head2 EXTENSION DATABASE SUPPORT	2384	=head2 EXTENSION DATABASE SUPPORT
2100		2385
2101	Crossfire maintains a very simple database for extension use. It can	2386	Crossfire maintains a very simple database for extension use. It can
2102	currently store anything that can be serialised using Storable, which	2387	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2103	excludes objects.	2388	convert to/from binary).
2104		2389
2105	The parameter C<$family> should best start with the name of the extension	2390	The parameter C<$family> should best start with the name of the extension
2106	using it, it should be unique.	2391	using it, it should be unique.
2107		2392
2108	=over 4	2393	=over 4
2109		2394
2110	=item $hashref = cf::db_get $family
2111
2112	Return a hashref for use by the extension C<$family>, which can be
2113	modified. After modifications, you have to call C<cf::db_dirty> or
2114	C<cf::db_sync>.
2115
2116	=item $value = cf::db_get $family => $key	2395	=item $value = cf::db_get $family => $key
2117		2396
2118	Returns a single value from the database	2397	Returns a single value from the database.
2119
2120	=item cf::db_put $family => $hashref
2121
2122	Stores the given family hashref into the database. Updates are delayed, if
2123	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2124		2398
2125	=item cf::db_put $family => $key => $value	2399	=item cf::db_put $family => $key => $value
2126		2400
2127	Stores the given C<$value> in the family hash. Updates are delayed, if you	2401	Stores the given C<$value> in the family.
2128	want the data to be synced to disk immediately, use C<cf::db_sync>.
2129
2130	=item cf::db_dirty
2131
2132	Marks the database as dirty, to be updated at a later time.
2133
2134	=item cf::db_sync
2135
2136	Immediately write the database to disk I<if it is dirty>.
2137		2402
2138	=cut	2403	=cut
2139		2404
2140	our $DB;	2405	our $DB;
2141		2406
2142	{	2407	sub db_init {
2143	my $path = cf::localdir . "/database.pst";	2408	unless ($DB) {
		2409	$DB = BDB::db_create $DB_ENV;
2144		2410
2145	sub db_load() {	2411	cf::sync_job {
2146	$DB = stat $path ? Storable::retrieve $path : { };	2412	eval {
2147	}	2413	$DB->set_flags (BDB::CHKSUM);
2148		2414
2149	my $pid;	2415	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2150		2416	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2151	sub db_save() {	2417	cf::cleanup "db_open(db): $!" if $!;
2152	waitpid $pid, 0 if $pid;	2418	};
2153	if (0 == ($pid = fork)) {	2419	cf::cleanup "db_open(db): $@" if $@;
2154	$DB->{_meta}{version} = 1;
2155	Storable::nstore $DB, "$path~";
2156	rename "$path~", $path;
2157	cf::_exit 0 if defined $pid;
2158	}	2420	};
2159	}
2160
2161	my $dirty;
2162
2163	sub db_sync() {
2164	db_save if $dirty;
2165	undef $dirty;
2166	}
2167
2168	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2169	db_sync;
2170	});	2421	}
		2422	}
2171		2423
2172	sub db_dirty() {
2173	$dirty = 1;
2174	$idle->start;
2175	}
2176
2177	sub db_get($;$) {	2424	sub db_get($$) {
2178	@_ >= 2	2425	my $key = "$_[0]/$_[1]";
2179	? $DB->{$_[0]}{$_[1]}
2180	: ($DB->{$_[0]} ||= { })
2181	}
2182		2426
		2427	cf::sync_job {
		2428	BDB::db_get $DB, undef, $key, my $data;
		2429
		2430	$! ? ()
		2431	: $data
		2432	}
		2433	}
		2434
2183	sub db_put($$;$) {	2435	sub db_put($$$) {
2184	if (@_ >= 3) {	2436	BDB::dbreq_pri 4;
2185	$DB->{$_[0]}{$_[1]} = $_[2];	2437	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2186	} else {	2438	}
2187	$DB->{$_[0]} = $_[1];
2188	}
2189	db_dirty;
2190	}
2191		2439
2192	cf::global->attach (	2440	=item cf::cache $id => [$paths...], $processversion => $process
2193	prio => 10000,	2441
2194	on_cleanup => sub {	2442	Generic caching function that returns the value of the resource $id,
2195	db_sync;	2443	caching and regenerating as required.
		2444
		2445	This function can block.
		2446
		2447	=cut
		2448
		2449	sub cache {
		2450	my ($id, $src, $processversion, $process) = @_;
		2451
		2452	my $meta =
		2453	join "\x00",
		2454	$processversion,
		2455	map {
		2456	aio_stat $_
		2457	and Carp::croak "$_: $!";
		2458
		2459	($_, (stat _)[7,9])
		2460	} @$src;
		2461
		2462	my $dbmeta = db_get cache => "$id/meta";
		2463	if ($dbmeta ne $meta) {
		2464	# changed, we may need to process
		2465
		2466	my @data;
		2467	my $md5;
		2468
		2469	for (0 .. $#$src) {
		2470	0 <= aio_load $src->[$_], $data[$_]
		2471	or Carp::croak "$src->[$_]: $!";
2196	},	2472	}
2197	);	2473
		2474	# if processing is expensive, check
		2475	# checksum first
		2476	if (1) {
		2477	$md5 =
		2478	join "\x00",
		2479	$processversion,
		2480	map {
		2481	Coro::cede;
		2482	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2483	} 0.. $#$src;
		2484
		2485
		2486	my $dbmd5 = db_get cache => "$id/md5";
		2487	if ($dbmd5 eq $md5) {
		2488	db_put cache => "$id/meta", $meta;
		2489
		2490	return db_get cache => "$id/data";
		2491	}
		2492	}
		2493
		2494	my $t1 = Time::HiRes::time;
		2495	my $data = $process->(\@data);
		2496	my $t2 = Time::HiRes::time;
		2497
		2498	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2499
		2500	db_put cache => "$id/data", $data;
		2501	db_put cache => "$id/md5" , $md5;
		2502	db_put cache => "$id/meta", $meta;
		2503
		2504	return $data;
		2505	}
		2506
		2507	db_get cache => "$id/data"
		2508	}
		2509
		2510	=item fork_call { }, $args
		2511
		2512	Executes the given code block with the given arguments in a seperate
		2513	process, returning the results. Everything must be serialisable with
		2514	Coro::Storable. May, of course, block. Note that the executed sub may
		2515	never block itself or use any form of Event handling.
		2516
		2517	=cut
		2518
		2519	sub fork_call(&@) {
		2520	my ($cb, @args) = @_;
		2521
		2522	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2523	# or die "socketpair: $!";
		2524	pipe my $fh1, my $fh2
		2525	or die "pipe: $!";
		2526
		2527	if (my $pid = fork) {
		2528	close $fh2;
		2529
		2530	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2531	$res = Coro::Storable::thaw $res;
		2532
		2533	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2534
		2535	die $$res unless "ARRAY" eq ref $res;
		2536
		2537	return wantarray ? @$res : $res->[-1];
		2538	} else {
		2539	reset_signals;
		2540	local $SIG{__WARN__};
		2541	local $SIG{__DIE__};
		2542	eval {
		2543	close $fh1;
		2544
		2545	my @res = eval { $cb->(@args) };
		2546	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2547	};
		2548
		2549	warn $@ if $@;
		2550	_exit 0;
		2551	}
2198	}	2552	}
2199		2553
2200	#############################################################################	2554	#############################################################################
2201	# the server's main()	2555	# the server's init and main functions
		2556
		2557	sub load_facedata($) {
		2558	my ($path) = @_;
		2559
		2560	warn "loading facedata from $path\n";
		2561
		2562	my $facedata;
		2563	0 < aio_load $path, $facedata
		2564	or die "$path: $!";
		2565
		2566	$facedata = Coro::Storable::thaw $facedata;
		2567
		2568	$facedata->{version} == 2
		2569	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2570
		2571	{
		2572	my $faces = $facedata->{faceinfo};
		2573
		2574	while (my ($face, $info) = each %$faces) {
		2575	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2576	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2577	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2578	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2579	Coro::cede;
		2580	}
		2581
		2582	while (my ($face, $info) = each %$faces) {
		2583	next unless $info->{smooth};
		2584	my $idx = cf::face::find $face
		2585	or next;
		2586	if (my $smooth = cf::face::find $info->{smooth}) {
		2587	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2588	} else {
		2589	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2590	}
		2591	Coro::cede;
		2592	}
		2593	}
		2594
		2595	{
		2596	my $anims = $facedata->{animinfo};
		2597
		2598	while (my ($anim, $info) = each %$anims) {
		2599	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2600	Coro::cede;
		2601	}
		2602
		2603	cf::anim::invalidate_all; # d'oh
		2604	}
		2605
		2606	1
		2607	}
		2608
		2609	sub reload_regions {
		2610	load_resource_file "$MAPDIR/regions"
		2611	or die "unable to load regions file\n";
		2612	}
		2613
		2614	sub reload_facedata {
		2615	load_facedata "$DATADIR/facedata"
		2616	or die "unable to load facedata\n";
		2617	}
		2618
		2619	sub reload_archetypes {
		2620	load_resource_file "$DATADIR/archetypes"
		2621	or die "unable to load archetypes\n";
		2622	}
		2623
		2624	sub reload_treasures {
		2625	load_resource_file "$DATADIR/treasures"
		2626	or die "unable to load treasurelists\n";
		2627	}
		2628
		2629	sub reload_resources {
		2630	warn "reloading resource files...\n";
		2631
		2632	reload_regions;
		2633	reload_facedata;
		2634	#reload_archetypes;#d#
		2635	reload_archetypes;
		2636	reload_treasures;
		2637
		2638	warn "finished reloading resource files\n";
		2639	}
		2640
		2641	sub init {
		2642	reload_resources;
		2643	}
2202		2644
2203	sub cfg_load {	2645	sub cfg_load {
2204	open my $fh, "<:utf8", cf::confdir . "/config"	2646	open my $fh, "<:utf8", "$CONFDIR/config"
2205	or return;	2647	or return;
2206		2648
2207	local $/;	2649	local $/;
2208	*CFG = YAML::Syck::Load <$fh>;	2650	*CFG = YAML::Syck::Load <$fh>;
2209		2651
…		…
2223		2665
2224	sub main {	2666	sub main {
2225	# we must not ever block the main coroutine	2667	# we must not ever block the main coroutine
2226	local $Coro::idle = sub {	2668	local $Coro::idle = sub {
2227	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2669	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2670	(async {
2228	async { Event::one_event };	2671	Event::one_event;
		2672	})->prio (Coro::PRIO_MAX);
2229	};	2673	};
2230		2674
2231	cfg_load;	2675	cfg_load;
2232	db_load;	2676	db_init;
2233	load_extensions;	2677	load_extensions;
		2678
		2679	$TICK_WATCHER->start;
2234	Event::loop;	2680	Event::loop;
2235	}	2681	}
2236		2682
2237	#############################################################################	2683	#############################################################################
2238	# initialisation and cleanup	2684	# initialisation and cleanup
2239		2685
2240	# install some emergency cleanup handlers	2686	# install some emergency cleanup handlers
2241	BEGIN {	2687	BEGIN {
2242	for my $signal (qw(INT HUP TERM)) {	2688	for my $signal (qw(INT HUP TERM)) {
2243	Event->signal (	2689	Event->signal (
		2690	reentrant => 0,
2244	data => WF_AUTOCANCEL,	2691	data => WF_AUTOCANCEL,
2245	signal => $signal,	2692	signal => $signal,
		2693	prio => 0,
2246	cb => sub {	2694	cb => sub {
2247	cf::cleanup "SIG$signal";	2695	cf::cleanup "SIG$signal";
2248	},	2696	},
2249	);	2697	);
2250	}	2698	}
2251	}	2699	}
…		…
2256	warn "enter emergency perl save\n";	2704	warn "enter emergency perl save\n";
2257		2705
2258	cf::sync_job {	2706	cf::sync_job {
2259	# use a peculiar iteration method to avoid tripping on perl	2707	# use a peculiar iteration method to avoid tripping on perl
2260	# refcount bugs in for. also avoids problems with players	2708	# refcount bugs in for. also avoids problems with players
2261	# and maps saved/Destroyed asynchronously.	2709	# and maps saved/destroyed asynchronously.
2262	warn "begin emergency player save\n";	2710	warn "begin emergency player save\n";
2263	for my $login (keys %cf::PLAYER) {	2711	for my $login (keys %cf::PLAYER) {
2264	my $pl = $cf::PLAYER{$login} or next;	2712	my $pl = $cf::PLAYER{$login} or next;
2265	$pl->valid or next;	2713	$pl->valid or next;
2266	$pl->save;	2714	$pl->save;
…		…
2272	my $map = $cf::MAP{$path} or next;	2720	my $map = $cf::MAP{$path} or next;
2273	$map->valid or next;	2721	$map->valid or next;
2274	$map->save;	2722	$map->save;
2275	}	2723	}
2276	warn "end emergency map save\n";	2724	warn "end emergency map save\n";
		2725
		2726	warn "begin emergency database checkpoint\n";
		2727	BDB::db_env_txn_checkpoint $DB_ENV;
		2728	warn "end emergency database checkpoint\n";
2277	};	2729	};
2278		2730
2279	warn "leave emergency perl save\n";	2731	warn "leave emergency perl save\n";
2280	}	2732	}
2281		2733
		2734	sub post_cleanup {
		2735	my ($make_core) = @_;
		2736
		2737	warn Carp::longmess "post_cleanup backtrace"
		2738	if $make_core;
		2739	}
		2740
2282	sub reload() {	2741	sub do_reload_perl() {
2283	# can/must only be called in main	2742	# can/must only be called in main
2284	if ($Coro::current != $Coro::main) {	2743	if ($Coro::current != $Coro::main) {
2285	warn "can only reload from main coroutine\n";	2744	warn "can only reload from main coroutine";
2286	return;	2745	return;
2287	}	2746	}
2288		2747
2289	warn "reloading...";	2748	warn "reloading...";
2290		2749
2291	warn "freezing server";	2750	warn "entering sync_job";
2292	my $guard = freeze_mainloop;	2751
		2752	cf::sync_job {
		2753	cf::write_runtime; # external watchdog should not bark
2293	cf::emergency_save;	2754	cf::emergency_save;
		2755	cf::write_runtime; # external watchdog should not bark
2294		2756
2295	warn "sync database to disk";	2757	warn "syncing database to disk";
2296	cf::db_sync;	2758	BDB::db_env_txn_checkpoint $DB_ENV;
2297	IO::AIO::flush;
2298		2759
2299	eval {
2300	# if anything goes wrong in here, we should simply crash as we already saved	2760	# if anything goes wrong in here, we should simply crash as we already saved
2301		2761
2302	warn "cancel all watchers";	2762	warn "cancelling all WF_AUTOCANCEL watchers";
2303	for (Event::all_watchers) {	2763	for (Event::all_watchers) {
2304	$_->cancel if $_->data & WF_AUTOCANCEL;	2764	$_->cancel if $_->data & WF_AUTOCANCEL;
2305	}	2765	}
2306		2766
		2767	warn "flushing outstanding aio requests";
		2768	for (;;) {
		2769	BDB::flush;
		2770	IO::AIO::flush;
		2771	Coro::cede;
		2772	last unless IO::AIO::nreqs || BDB::nreqs;
		2773	warn "iterate...";
		2774	}
		2775
		2776	++$RELOAD;
		2777
2307	warn "cancel all extension coros";	2778	warn "cancelling all extension coros";
2308	$_->cancel for values %EXT_CORO;	2779	$_->cancel for values %EXT_CORO;
2309	%EXT_CORO = ();	2780	%EXT_CORO = ();
2310		2781
2311	warn "remove commands";	2782	warn "removing commands";
2312	%COMMAND = ();	2783	%COMMAND = ();
2313		2784
2314	warn "remove ext commands";	2785	warn "removing ext commands";
2315	%EXTCMD = ();	2786	%EXTCMD = ();
2316		2787
2317	warn "unload/nuke all extensions";	2788	warn "unloading/nuking all extensions";
2318	for my $pkg (@EXTS) {	2789	for my $pkg (@EXTS) {
2319	warn "... unloading $pkg";	2790	warn "... unloading $pkg";
2320		2791
2321	if (my $cb = $pkg->can ("unload")) {	2792	if (my $cb = $pkg->can ("unload")) {
2322	eval {	2793	eval {
…		…
2327		2798
2328	warn "... nuking $pkg";	2799	warn "... nuking $pkg";
2329	Symbol::delete_package $pkg;	2800	Symbol::delete_package $pkg;
2330	}	2801	}
2331		2802
2332	warn "unload all perl modules loaded from $LIBDIR";	2803	warn "unloading all perl modules loaded from $LIBDIR";
2333	while (my ($k, $v) = each %INC) {	2804	while (my ($k, $v) = each %INC) {
2334	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2805	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2335		2806
2336	warn "removing <$k>";	2807	warn "... unloading $k";
2337	delete $INC{$k};	2808	delete $INC{$k};
2338		2809
2339	$k =~ s/\.pm$//;	2810	$k =~ s/\.pm$//;
2340	$k =~ s/\//::/g;	2811	$k =~ s/\//::/g;
2341		2812
…		…
2344	}	2815	}
2345		2816
2346	Symbol::delete_package $k;	2817	Symbol::delete_package $k;
2347	}	2818	}
2348		2819
2349	warn "get rid of safe::, as good as possible";	2820	warn "getting rid of safe::, as good as possible";
2350	Symbol::delete_package "safe::$_"	2821	Symbol::delete_package "safe::$_"
2351	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2822	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2352		2823
2353	warn "unload cf.pm \"a bit\"";	2824	warn "unloading cf.pm \"a bit\"";
2354	delete $INC{"cf.pm"};	2825	delete $INC{"cf.pm"};
		2826	delete $INC{"cf/pod.pm"};
2355		2827
2356	# don't, removes xs symbols, too,	2828	# don't, removes xs symbols, too,
2357	# and global variables created in xs	2829	# and global variables created in xs
2358	#Symbol::delete_package __PACKAGE__;	2830	#Symbol::delete_package __PACKAGE__;
2359		2831
		2832	warn "unload completed, starting to reload now";
		2833
2360	warn "reloading cf.pm";	2834	warn "reloading cf.pm";
2361	require cf;	2835	require cf;
2362	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2836	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2363		2837
2364	warn "load config and database again";	2838	warn "loading config and database again";
2365	cf::cfg_load;	2839	cf::cfg_load;
2366	cf::db_load;
2367		2840
2368	warn "load extensions";	2841	warn "loading extensions";
2369	cf::load_extensions;	2842	cf::load_extensions;
2370		2843
2371	warn "reattach attachments to objects/players";	2844	warn "reattaching attachments to objects/players";
2372	_global_reattach;	2845	_global_reattach; # objects, sockets
2373	warn "reattach attachments to maps";	2846	warn "reattaching attachments to maps";
2374	reattach $_ for values %MAP;	2847	reattach $_ for values %MAP;
2375	};	2848	warn "reattaching attachments to players";
		2849	reattach $_ for values %PLAYER;
2376		2850
2377	if ($@) {	2851	warn "leaving sync_job";
		2852
		2853	1
		2854	} or do {
2378	warn $@;	2855	warn $@;
2379	warn "error while reloading, exiting.";	2856	warn "error while reloading, exiting.";
2380	exit 1;	2857	exit 1;
2381	}	2858	};
2382		2859
2383	warn "reloaded";	2860	warn "reloaded";
2384	};	2861	};
2385		2862
2386	#############################################################################	2863	our $RELOAD_WATCHER; # used only during reload
2387		2864
2388	unless ($LINK_MAP) {	2865	sub reload_perl() {
2389	$LINK_MAP = cf::map::new;	2866	# doing reload synchronously and two reloads happen back-to-back,
		2867	# coro crashes during coro_state_free->destroy here.
2390		2868
2391	$LINK_MAP->width (41);	2869	$RELOAD_WATCHER ||= Event->timer (
2392	$LINK_MAP->height (41);	2870	reentrant => 0,
2393	$LINK_MAP->alloc;
2394	$LINK_MAP->path ("{link}");
2395	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2396	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2397
2398	# dirty hack because... archetypes are not yet loaded
2399	Event->timer (
2400	after => 10,	2871	after => 0,
		2872	data => WF_AUTOCANCEL,
2401	cb => sub {	2873	cb => sub {
2402	$_[0]->w->cancel;	2874	do_reload_perl;
2403		2875	undef $RELOAD_WATCHER;
2404	# provide some exits "home"
2405	my $exit = cf::object::new "exit";
2406
2407	$exit->slaying ($EMERGENCY_POSITION->[0]);
2408	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2409	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2410
2411	$LINK_MAP->insert ($exit->clone, 19, 19);
2412	$LINK_MAP->insert ($exit->clone, 19, 20);
2413	$LINK_MAP->insert ($exit->clone, 19, 21);
2414	$LINK_MAP->insert ($exit->clone, 20, 19);
2415	$LINK_MAP->insert ($exit->clone, 20, 21);
2416	$LINK_MAP->insert ($exit->clone, 21, 19);
2417	$LINK_MAP->insert ($exit->clone, 21, 20);
2418	$LINK_MAP->insert ($exit->clone, 21, 21);
2419
2420	$exit->destroy;
2421	});	2876	},
2422		2877	);
2423	$LINK_MAP->{deny_save} = 1;
2424	$LINK_MAP->{deny_reset} = 1;
2425
2426	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2427	}	2878	}
2428		2879
2429	register_command "reload" => sub {	2880	register_command "reload" => sub {
2430	my ($who, $arg) = @_;	2881	my ($who, $arg) = @_;
2431		2882
2432	if ($who->flag (FLAG_WIZ)) {	2883	if ($who->flag (FLAG_WIZ)) {
2433	$who->message ("start of reload.");
2434	reload;
2435	$who->message ("end of reload.");	2884	$who->message ("reloading server.");
		2885	async { reload_perl };
2436	}	2886	}
2437	};	2887	};
2438		2888
2439	unshift @INC, $LIBDIR;	2889	unshift @INC, $LIBDIR;
2440		2890
		2891	my $bug_warning = 0;
		2892
		2893	our @WAIT_FOR_TICK;
		2894	our @WAIT_FOR_TICK_BEGIN;
		2895
		2896	sub wait_for_tick {
		2897	return unless $TICK_WATCHER->is_active;
		2898	return if $Coro::current == $Coro::main;
		2899
		2900	my $signal = new Coro::Signal;
		2901	push @WAIT_FOR_TICK, $signal;
		2902	$signal->wait;
		2903	}
		2904
		2905	sub wait_for_tick_begin {
		2906	return unless $TICK_WATCHER->is_active;
		2907	return if $Coro::current == $Coro::main;
		2908
		2909	my $signal = new Coro::Signal;
		2910	push @WAIT_FOR_TICK_BEGIN, $signal;
		2911	$signal->wait;
		2912	}
		2913
		2914	my $min = 1e6;#d#
		2915	my $avg = 10;
2441	$TICK_WATCHER = Event->timer (	2916	$TICK_WATCHER = Event->timer (
2442	reentrant => 0,	2917	reentrant => 0,
		2918	parked => 1,
2443	prio => 0,	2919	prio => 0,
2444	at => $NEXT_TICK || $TICK,	2920	at => $NEXT_TICK || $TICK,
2445	data => WF_AUTOCANCEL,	2921	data => WF_AUTOCANCEL,
2446	cb => sub {	2922	cb => sub {
		2923	if ($Coro::current != $Coro::main) {
		2924	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2925	unless ++$bug_warning > 10;
		2926	return;
		2927	}
		2928
		2929	$NOW = $tick_start = Event::time;
		2930
2447	cf::server_tick; # one server iteration	2931	cf::server_tick; # one server iteration
		2932
		2933	0 && sync_job {#d#
		2934	for(1..10) {
		2935	my $t = Event::time;
		2936	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2937	or die;
		2938
		2939	$map->width (50);
		2940	$map->height (50);
		2941	$map->alloc;
		2942	$map->_load_objects ("/tmp/x.map", 1);
		2943	my $t = Event::time - $t;
		2944
		2945	#next unless $t < 0.0013;#d#
		2946	if ($t < $min) {
		2947	$min = $t;
		2948	}
		2949	$avg = $avg * 0.99 + $t * 0.01;
		2950	}
		2951	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2952	exit 0;
		2953	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2954	};
		2955
2448	$RUNTIME += $TICK;	2956	$RUNTIME += $TICK;
2449	$NEXT_TICK += $TICK;	2957	$NEXT_TICK += $TICK;
2450		2958
2451	$WAIT_FOR_TICK->broadcast;	2959	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2452	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2960	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2961	Coro::async_pool {
		2962	write_runtime
		2963	or warn "ERROR: unable to write runtime file: $!";
		2964	};
		2965	}
		2966
		2967	# my $AFTER = Event::time;
		2968	# warn $AFTER - $NOW;#d#
		2969
		2970	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2971	$sig->send;
		2972	}
		2973	while (my $sig = shift @WAIT_FOR_TICK) {
		2974	$sig->send;
		2975	}
		2976
		2977	$NOW = Event::time;
2453		2978
2454	# if we are delayed by four ticks or more, skip them all	2979	# if we are delayed by four ticks or more, skip them all
2455	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2980	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2456		2981
2457	$TICK_WATCHER->at ($NEXT_TICK);	2982	$TICK_WATCHER->at ($NEXT_TICK);
2458	$TICK_WATCHER->start;	2983	$TICK_WATCHER->start;
		2984
		2985	$LOAD = ($NOW - $tick_start) / $TICK;
		2986	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2987
		2988	_post_tick;
		2989
		2990
2459	},	2991	},
2460	);	2992	);
2461		2993
		2994	{
2462	IO::AIO::max_poll_time $TICK * 0.2;	2995	BDB::max_poll_time $TICK * 0.1;
2463		2996	$BDB_POLL_WATCHER = Event->io (
2464	Event->io (	2997	reentrant => 0,
2465	fd => IO::AIO::poll_fileno,	2998	fd => BDB::poll_fileno,
2466	poll => 'r',	2999	poll => 'r',
2467	prio => 5,	3000	prio => 0,
2468	data => WF_AUTOCANCEL,
2469	cb => \&IO::AIO::poll_cb,
2470	);
2471
2472	Event->timer (
2473	data => WF_AUTOCANCEL,	3001	data => WF_AUTOCANCEL,
2474	after => 0,	3002	cb => \&BDB::poll_cb,
2475	interval => 10,	3003	);
2476	cb => sub {	3004	BDB::min_parallel 8;
2477	(Coro::unblock_sub {	3005
2478	write_runtime	3006	BDB::set_sync_prepare {
2479	or warn "ERROR: unable to write runtime file: $!";	3007	my $status;
		3008	my $current = $Coro::current;
		3009	(
		3010	sub {
		3011	$status = $!;
		3012	$current->ready; undef $current;
		3013	},
		3014	sub {
		3015	Coro::schedule while defined $current;
		3016	$! = $status;
		3017	},
		3018	)
		3019	};
		3020
		3021	unless ($DB_ENV) {
		3022	$DB_ENV = BDB::db_env_create;
		3023
		3024	cf::sync_job {
		3025	eval {
		3026	BDB::db_env_open
		3027	$DB_ENV,
		3028	$BDBDIR,
		3029	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3030	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3031	0666;
		3032
		3033	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3034
		3035	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3036	$DB_ENV->set_lk_detect;
		3037	};
		3038
		3039	cf::cleanup "db_env_open(db): $@" if $@;
2480	})->();	3040	};
2481	},	3041	}
2482	);	3042	}
		3043
		3044	{
		3045	IO::AIO::min_parallel 8;
		3046
		3047	undef $Coro::AIO::WATCHER;
		3048	IO::AIO::max_poll_time $TICK * 0.1;
		3049	$AIO_POLL_WATCHER = Event->io (
		3050	reentrant => 0,
		3051	data => WF_AUTOCANCEL,
		3052	fd => IO::AIO::poll_fileno,
		3053	poll => 'r',
		3054	prio => 6,
		3055	cb => \&IO::AIO::poll_cb,
		3056	);
		3057	}
		3058
		3059	my $_log_backtrace;
		3060
		3061	sub _log_backtrace {
		3062	my ($msg, @addr) = @_;
		3063
		3064	$msg =~ s/\n//;
		3065
		3066	# limit the # of concurrent backtraces
		3067	if ($_log_backtrace < 2) {
		3068	++$_log_backtrace;
		3069	async {
		3070	my @bt = fork_call {
		3071	@addr = map { sprintf "%x", $_ } @addr;
		3072	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3073	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3074	or die "addr2line: $!";
		3075
		3076	my @funcs;
		3077	my @res = <$fh>;
		3078	chomp for @res;
		3079	while (@res) {
		3080	my ($func, $line) = splice @res, 0, 2, ();
		3081	push @funcs, "[$func] $line";
		3082	}
		3083
		3084	@funcs
		3085	};
		3086
		3087	LOG llevInfo, "[ABT] $msg\n";
		3088	LOG llevInfo, "[ABT] $_\n" for @bt;
		3089	--$_log_backtrace;
		3090	};
		3091	} else {
		3092	LOG llevInfo, "[ABT] $msg\n";
		3093	LOG llevInfo, "[ABT] [suppressed]\n";
		3094	}
		3095	}
		3096
		3097	# load additional modules
		3098	use cf::pod;
2483		3099
2484	END { cf::emergency_save }	3100	END { cf::emergency_save }
2485		3101
2486	1	3102	1
2487		3103

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