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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.142 by root, Fri Jan 5 21:51:42 2007 UTC vs.
Revision 1.275 by root, Thu Jun 7 19:12:22 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	91
55	our %EXT_CORO;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
56		98
57	binmode STDOUT;	99	binmode STDOUT;
58	binmode STDERR;	100	binmode STDERR;
59		101
60	# read virtual server time, if available	102	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
65	}	107	}
66		108
67	mkdir cf::localdir;	109	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		111
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
76		115
77	#############################################################################	116	#############################################################################
78		117
79	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
80		119
…		…
87	=item $cf::RUNTIME	126	=item $cf::RUNTIME
88		127
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	129	every server tick.
91		130
92	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		134
94	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
96		139
97	=item $cf::NOW	140	=item $cf::NOW
98		141
99	The time of the last (current) server tick.	142	The time of the last (current) server tick.
100		143
101	=item $cf::TICK	144	=item $cf::TICK
102		145
103	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
104		157
105	=item %cf::CFG	158	=item %cf::CFG
106		159
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
109		168
110	=back	169	=back
111		170
112	=cut	171	=cut
113		172
114	BEGIN {	173	BEGIN {
115	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	175	my $msg = join "", @_;
117	utf8::encode $msg;
118		176
119	$msg .= "\n"	177	$msg .= "\n"
120	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
121		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
123	};	184	};
124	}	185	}
125		186
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		194
133	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	196	# within the Safe compartment.
135	for my $pkg (qw(	197	for my $pkg (qw(
136	cf::global cf::attachable	198	cf::global cf::attachable
…		…
145		207
146	$Event::DIED = sub {	208	$Event::DIED = sub {
147	warn "error in event callback: @_";	209	warn "error in event callback: @_";
148	};	210	};
149		211
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
155		213
156	=over 4	214	=over 4
157		215
158	=cut	216	=item dumpval $ref
159		217
		218	=cut
		219
		220	sub dumpval {
		221	eval {
		222	local $SIG{__DIE__};
		223	my $d;
		224	if (1) {
		225	$d = new Data::Dumper([$_[0]], ["*var"]);
		226	$d->Terse(1);
		227	$d->Indent(2);
		228	$d->Quotekeys(0);
		229	$d->Useqq(1);
		230	#$d->Bless(...);
		231	$d->Seen($_[1]) if @_ > 1;
		232	$d = $d->Dump();
		233	}
		234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		235	$d
		236	} || "[unable to dump $_[0]: '$@']";
		237	}
		238
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
161		240
162	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
163		242
164	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
165		244
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
174		246
175	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
176
177	=cut
178
179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		248
184	=item cf::lock_wait $string	249	=item cf::lock_wait $string
185		250
186	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
187		252
…		…
193	returned.	258	returned.
194		259
195	Lock names should begin with a unique identifier (for example, cf::map::find	260	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
197		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
198	=cut	267	=cut
199		268
200	our %LOCK;	269	our %LOCK;
201		270
202	sub lock_wait($) {	271	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
223	}	292	}
224	}	293	}
225		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
226	sub freeze_mainloop {	301	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
228		303
229	my $guard = Coro::guard { $TICK_WATCHER->start };	304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
230	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
231	$guard	308	$guard
232	}	309	}
233		310
234	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
256		333
257	sub sync_job(&) {	334	sub sync_job(&) {
258	my ($job) = @_;	335	my ($job) = @_;
259		336
260	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
261	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
263		342
264	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
265	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
276		355
277	while ($busy) {	356	while ($busy) {
278	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
279	}	358	}
280		359
		360	$time = Event::time - $time;
		361
		362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		364
		365	$tick_start += $time; # do not account sync jobs to server load
		366
281	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
282	} else {	368	} else {
283	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
284		370
285	$job->()	371	$job->()
286	}	372	}
287	}	373	}
288		374
289	=item $coro = cf::async_ext { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
290		376
291	Like async, but this coro is automcatially being canceled when the	377	Like async, but this coro is automatically being canceled when the
292	extension calling this is being unloaded.	378	extension calling this is being unloaded.
293		379
294	=cut	380	=cut
295		381
296	sub async_ext(&) {	382	sub async_ext(&) {
…		…
305		391
306	$coro	392	$coro
307	}	393	}
308		394
309	sub write_runtime {	395	sub write_runtime {
310	my $runtime = cf::localdir . "/runtime";	396	my $runtime = "$LOCALDIR/runtime";
		397
		398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
		403	my $guard = cf::lock_acquire "write_runtime";
311		404
312	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
313	or return;	406	or return;
314		407
		408	my $value = $cf::RUNTIME + 90 + 10;
315	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
316	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
317	and return;	413	and return;
318		414
		415	# always fsync - this file is important
319	aio_fsync $fh	416	aio_fsync $fh
320	and return;	417	and return;
321		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
322	close $fh	422	close $fh
323	or return;	423	or return;
324		424
325	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
326	and return;	426	and return;
327		427
		428	warn "runtime file written.\n";
		429
328	1	430	1
329	}	431	}
330		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
331	=back	444	=back
332		445
333	=cut	446	=cut
334
335	#############################################################################
336
337	package cf::path;
338
339	sub new {
340	my ($class, $path, $base) = @_;
341
342	$path = $path->as_string if ref $path;
343
344	my $self = bless { }, $class;
345
346	# {... are special paths that are not touched
347	# ?xxx/... are special absolute paths
348	# ?random/... random maps
349	# /! non-realised random map exit
350	# /... normal maps
351	# ~/... per-player maps without a specific player (DO NOT USE)
352	# ~user/... per-player map of a specific user
353
354	if ($path =~ /^{/) {
355	# fine as it is
356	} elsif ($path =~ s{^\?random/}{}) {
357	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
358	$self->{random} = cf::from_json $data;
359	} else {
360	if ($path =~ s{^~([^/]+)?}{}) {
361	$self->{user_rel} = 1;
362
363	if (defined $1) {
364	$self->{user} = $1;
365	} elsif ($base =~ m{^~([^/]+)/}) {
366	$self->{user} = $1;
367	} else {
368	warn "cannot resolve user-relative path without user <$path,$base>\n";
369	}
370	} elsif ($path =~ /^\//) {
371	# already absolute
372	} else {
373	$base =~ s{[^/]+/?$}{};
374	return $class->new ("$base/$path");
375	}
376
377	for ($path) {
378	redo if s{/\.?/}{/};
379	redo if s{/[^/]+/\.\./}{/};
380	}
381	}
382
383	$self->{path} = $path;
384
385	$self
386	}
387
388	# the name / primary key / in-game path
389	sub as_string {
390	my ($self) = @_;
391
392	$self->{user_rel} ? "~$self->{user}$self->{path}"
393	: $self->{random} ? "?random/$self->{path}"
394	: $self->{path}
395	}
396
397	# the displayed name, this is a one way mapping
398	sub visible_name {
399	my ($self) = @_;
400
401	# if (my $rmp = $self->{random}) {
402	# # todo: be more intelligent about this
403	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
404	# } else {
405	$self->as_string
406	# }
407	}
408
409	# escape the /'s in the path
410	sub _escaped_path {
411	# ∕ is U+2215
412	(my $path = $_[0]{path}) =~ s/\//∕/g;
413	$path
414	}
415
416	# the original (read-only) location
417	sub load_path {
418	my ($self) = @_;
419
420	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
421	}
422
423	# the temporary/swap location
424	sub save_path {
425	my ($self) = @_;
426
427	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
428	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
429	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
430	}
431
432	# the unique path, might be eq to save_path
433	sub uniq_path {
434	my ($self) = @_;
435
436	$self->{user_rel} || $self->{random}
437	? undef
438	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
439	}
440
441	# return random map parameters, or undef
442	sub random_map_params {
443	my ($self) = @_;
444
445	$self->{random}
446	}
447
448	# this is somewhat ugly, but style maps do need special treatment
449	sub is_style_map {
450	$_[0]{path} =~ m{^/styles/}
451	}
452
453	package cf;
454		447
455	#############################################################################	448	#############################################################################
456		449
457	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
458		451
…		…
584	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
585	our @CB_MAP = ();	578	our @CB_MAP = ();
586		579
587	my %attachment;	580	my %attachment;
588		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
589	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
590	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
591		590
592	use sort 'stable';	591	use sort 'stable';
593		592
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
628		627
629	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		632
634	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	634	my $pkg = shift @arg;
636		635
637	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
678	if (ref $_[0]) {	677	if (ref $_[0]) {
679	_object_attach @_;	678	_object_attach @_;
680	} else {	679	} else {
681	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
682	}	681	}
		682	_recalc_want;
683	};	683	};
684		684
685	# all those should be optimised	685	# all those should be optimised
686	sub cf::attachable::detach {	686	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
691	reattach ($obj);	691	reattach ($obj);
692	} else {	692	} else {
693	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
694	}	694	}
		695	_recalc_want;
695	};	696	};
696		697
697	sub cf::attachable::attached {	698	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
699		700
…		…
764	# object support	765	# object support
765		766
766	sub reattach {	767	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
769		772
770	my $registry = $obj->registry;	773	my $registry = $obj->registry;
771		774
772	@$registry = ();	775	@$registry = ();
773		776
…		…
820	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
821		824
822	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
824	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
825	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
826	close $fh;	829	close $fh;
827		830
828	if (@$objs) {	831	if (@$objs) {
829	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
831	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
832	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
833	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
834	close $fh;	837	close $fh;
835	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
836	}	839	}
837	} else {	840	} else {
838	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
870	or return;	873	or return;
871	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
872	}	875	}
873		876
874	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
875	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
876	return ($data, $av);	879	return ($data, $av);
877	}	880	}
878		881
879	#############################################################################	882	#############################################################################
880	# command handling &c	883	# command handling &c
…		…
905	=cut	908	=cut
906		909
907	sub register_extcmd {	910	sub register_extcmd {
908	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
909		912
910	my $caller = caller;
911	#warn "registering extcmd '$name' to '$caller'";
912
913	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
914	}	914	}
915		915
916	cf::player->attach (	916	cf::player->attach (
917	on_command => sub {	917	on_command => sub {
918	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
931		931
932	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
933		933
934	if (ref $msg) {	934	if (ref $msg) {
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
936	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
937	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}	938	}
939	}	939	}
940	} else {	940	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
943		943
944	cf::override;	944	cf::override;
945	},	945	},
946	);	946	);
947		947
948	sub register {
949	my ($base, $pkg) = @_;
950
951	#TODO
952	}
953
954	sub load_extension {	948	sub load_extension {
955	my ($path) = @_;	949	my ($path) = @_;
956		950
957	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
958	my $base = $1;	952	my $base = $1;
959	my $pkg = $1;	953	my $pkg = $1;
960	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
961	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
962		956
963	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
964		958
965	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
966	or die "$path: $!";	960	or die "$path: $!";
967		961
968	my $source =	962	my $source =
969	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
970	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
971	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
972	. "\n};\n1";	966	. "\n};\n1";
973		967
974	eval $source	968	unless (eval $source) {
975	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
976	: "extension disabled.\n";	970	: "extension disabled.\n";
977		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
978	push @exts, $pkg;	972	warn $@;
979	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
980		974	exit 1;
981	# no strict 'refs';	975	}
982	# @{"$pkg\::ISA"} = ext::;	976	die $@;
983
984	register $base, $pkg;
985	}
986
987	sub unload_extension {
988	my ($pkg) = @_;
989
990	warn "removing extension $pkg\n";
991
992	# remove hooks
993	#TODO
994	# for my $idx (0 .. $#PLUGIN_EVENT) {
995	# delete $hook[$idx]{$pkg};
996	# }	977	}
997		978
998	# remove commands	979	push @EXTS, $pkg;
999	for my $name (keys %COMMAND) {
1000	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1001
1002	if (@cb) {
1003	$COMMAND{$name} = \@cb;
1004	} else {
1005	delete $COMMAND{$name};
1006	}
1007	}
1008
1009	# remove extcmds
1010	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1011	delete $EXTCMD{$name};
1012	}
1013
1014	if (my $cb = $pkg->can ("unload")) {
1015	eval {
1016	$cb->($pkg);
1017	1
1018	} or warn "$pkg unloaded, but with errors: $@";
1019	}
1020
1021	Symbol::delete_package $pkg;
1022	}	980	}
1023		981
1024	sub load_extensions {	982	sub load_extensions {
1025	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
1026	next unless -r $ext;	984	next unless -r $ext;
…		…
1030	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
1031	}	989	}
1032	}	990	}
1033		991
1034	#############################################################################	992	#############################################################################
1035	# load/save/clean perl data associated with a map
1036
1037	*cf::mapsupport::on_clean = sub {
1038	my ($map) = @_;
1039
1040	my $path = $map->tmpname;
1041	defined $path or return;
1042
1043	unlink "$path.pst";
1044	};
1045
1046	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1047
1048	#############################################################################
1049	# load/save perl data associated with player->ob objects
1050
1051	sub all_objects(@) {
1052	@_, map all_objects ($_->inv), @_
1053	}
1054
1055	# TODO: compatibility cruft, remove when no longer needed
1056	cf::player->attach (
1057	on_load => sub {
1058	my ($pl, $path) = @_;
1059
1060	for my $o (all_objects $pl->ob) {
1061	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1062	$o->set_ob_key_value ("_perl_data");
1063
1064	%$o = %{ Storable::thaw pack "H*", $value };
1065	}
1066	}
1067	},
1068	);
1069
1070	#############################################################################
1071		993
1072	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1073		995
1074	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1075		997
		998	=cut
		999
		1000	package cf::player;
		1001
		1002	use Coro::AIO;
		1003
1076	=head3 cf::player	1004	=head3 cf::player
1077		1005
1078	=over 4	1006	=over 4
1079		1007
1080	=item cf::player::exists $login	1008	=item cf::player::find $login
1081		1009
1082	Returns true when the given account exists.	1010	Returns the given player object, loading it if necessary (might block).
1083		1011
1084	=cut	1012	=cut
1085		1013
1086	sub cf::player::exists($) {	1014	sub playerdir($) {
1087	cf::player::find $_[0]	1015	"$PLAYERDIR/"
1088	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1089	}	1017	}
1090		1018
		1019	sub path($) {
		1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1021
		1022	(playerdir $login) . "/playerdata"
		1023	}
		1024
		1025	sub find_active($) {
		1026	$cf::PLAYER{$_[0]}
		1027	and $cf::PLAYER{$_[0]}->active
		1028	and $cf::PLAYER{$_[0]}
		1029	}
		1030
		1031	sub exists($) {
		1032	my ($login) = @_;
		1033
		1034	$cf::PLAYER{$login}
		1035	or cf::sync_job { !aio_stat path $login }
		1036	}
		1037
		1038	sub find($) {
		1039	return $cf::PLAYER{$_[0]} || do {
		1040	my $login = $_[0];
		1041
		1042	my $guard = cf::lock_acquire "user_find:$login";
		1043
		1044	$cf::PLAYER{$_[0]} || do {
		1045	# rename old playerfiles to new ones
		1046	#TODO: remove when no longer required
		1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1050	aio_unlink +(playerdir $login) . "/$login.pl";
		1051
		1052	my $pl = load_pl path $login
		1053	or return;
		1054	$cf::PLAYER{$login} = $pl
		1055	}
		1056	}
		1057	}
		1058
		1059	sub save($) {
		1060	my ($pl) = @_;
		1061
		1062	return if $pl->{deny_save};
		1063
		1064	my $path = path $pl;
		1065	my $guard = cf::lock_acquire "user_save:$path";
		1066
		1067	return if $pl->{deny_save};
		1068
		1069	aio_mkdir playerdir $pl, 0770;
		1070	$pl->{last_save} = $cf::RUNTIME;
		1071
		1072	$pl->save_pl ($path);
		1073	Coro::cede;
		1074	}
		1075
		1076	sub new($) {
		1077	my ($login) = @_;
		1078
		1079	my $self = create;
		1080
		1081	$self->ob->name ($login);
		1082	$self->{deny_save} = 1;
		1083
		1084	$cf::PLAYER{$login} = $self;
		1085
		1086	$self
		1087	}
		1088
		1089	=item $pl->quit_character
		1090
		1091	Nukes the player without looking back. If logged in, the connection will
		1092	be destroyed. May block for a long time.
		1093
		1094	=cut
		1095
		1096	sub quit_character {
		1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
		1100
		1101	$pl->{deny_save} = 1;
		1102	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1103
		1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1105	$pl->deactivate;
		1106	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1107	$pl->ns->destroy if $pl->ns;
		1108
		1109	my $path = playerdir $pl;
		1110	my $temp = "$path~$cf::RUNTIME~deleting~";
		1111	aio_rename $path, $temp;
		1112	delete $cf::PLAYER{$pl->ob->name};
		1113	$pl->destroy;
		1114
		1115	my $prefix = qr<^~\Q$name\E/>;
		1116
		1117	# nuke player maps
		1118	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1119
		1120	IO::AIO::aio_rmtree $temp;
		1121	}
		1122
		1123	=item $pl->kick
		1124
		1125	Kicks a player out of the game. This destroys the connection.
		1126
		1127	=cut
		1128
		1129	sub kick {
		1130	my ($pl, $kicker) = @_;
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1133	$pl->killer ("kicked");
		1134	$pl->ns->destroy;
		1135	}
		1136
		1137	=item cf::player::list_logins
		1138
		1139	Returns am arrayref of all valid playernames in the system, can take a
		1140	while and may block, so not sync_job-capable, ever.
		1141
		1142	=cut
		1143
		1144	sub list_logins {
		1145	my $dirs = aio_readdir $PLAYERDIR
		1146	or return [];
		1147
		1148	my @logins;
		1149
		1150	for my $login (@$dirs) {
		1151	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1152	aio_read $fh, 0, 512, my $buf, 0 or next;
		1153	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1154
		1155	utf8::decode $login;
		1156	push @logins, $login;
		1157	}
		1158
		1159	\@logins
		1160	}
		1161
		1162	=item $player->maps
		1163
		1164	Returns an arrayref of map paths that are private for this
		1165	player. May block.
		1166
		1167	=cut
		1168
		1169	sub maps($) {
		1170	my ($pl) = @_;
		1171
		1172	$pl = ref $pl ? $pl->ob->name : $pl;
		1173
		1174	my $files = aio_readdir playerdir $pl
		1175	or return;
		1176
		1177	my @paths;
		1178
		1179	for (@$files) {
		1180	utf8::decode $_;
		1181	next if /\.(?:pl|pst)$/;
		1182	next unless /^$PATH_SEP/o;
		1183
		1184	push @paths, cf::map::normalise "~$pl/$_";
		1185	}
		1186
		1187	\@paths
		1188	}
		1189
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1092		1191
1093	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1094		1193
1095	=cut	1194	=cut
1096		1195
1097	sub cf::player::ext_reply($$$%) {	1196	sub ext_reply($$%) {
1098	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1099		1198
1100	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1101		1200
1102	$self->send ("ext " . to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
		1202	}
		1203
		1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		1211	my ($self, $type, %msg) = @_;
		1212
		1213	$self->ns->ext_event ($type, %msg);
		1214	}
		1215
		1216	=head3 cf::region
		1217
		1218	=over 4
		1219
		1220	=cut
		1221
		1222	package cf::region;
		1223
		1224	=item cf::region::find_by_path $path
		1225
		1226	Tries to decuce the probable region for a map knowing only its path.
		1227
		1228	=cut
		1229
		1230	sub find_by_path($) {
		1231	my ($path) = @_;
		1232
		1233	my ($match, $specificity);
		1234
		1235	for my $region (list) {
		1236	if ($region->match && $path =~ $region->match) {
		1237	($match, $specificity) = ($region, $region->specificity)
		1238	if $region->specificity > $specificity;
		1239	}
		1240	}
		1241
		1242	$match
1103	}	1243	}
1104		1244
1105	=back	1245	=back
1106
1107		1246
1108	=head3 cf::map	1247	=head3 cf::map
1109		1248
1110	=over 4	1249	=over 4
1111		1250
…		…
1114	package cf::map;	1253	package cf::map;
1115		1254
1116	use Fcntl;	1255	use Fcntl;
1117	use Coro::AIO;	1256	use Coro::AIO;
1118		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1119	our $MAX_RESET = 3600;	1262	our $MAX_RESET = 3600;
1120	our $DEFAULT_RESET = 3000;	1263	our $DEFAULT_RESET = 3000;
1121		1264
1122	sub generate_random_map {	1265	sub generate_random_map {
1123	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1124
1125	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1126	cf::map::_create_random_map	1268	$self->_create_random_map (
1127	$path,
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1277	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region})	1279	(cf::region::find $rmp->{region}), $rmp->{custom}
		1280	)
		1281	}
		1282
		1283	=item cf::map->register ($regex, $prio)
		1284
		1285	Register a handler for the map path matching the given regex at the
		1286	givne priority (higher is better, built-in handlers have priority 0, the
		1287	default).
		1288
		1289	=cut
		1290
		1291	sub register {
		1292	my (undef, $regex, $prio) = @_;
		1293	my $pkg = caller;
		1294
		1295	no strict;
		1296	push @{"$pkg\::ISA"}, __PACKAGE__;
		1297
		1298	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1299	}
		1300
		1301	# also paths starting with '/'
		1302	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1303
		1304	sub thawer_merge {
		1305	my ($self, $merge) = @_;
		1306
		1307	# we have to keep some variables in memory intact
		1308	local $self->{path};
		1309	local $self->{load_path};
		1310
		1311	$self->SUPER::thawer_merge ($merge);
		1312	}
		1313
		1314	sub normalise {
		1315	my ($path, $base) = @_;
		1316
		1317	$path = "$path"; # make sure its a string
		1318
		1319	$path =~ s/\.map$//;
		1320
		1321	# map plan:
		1322	#
		1323	# /! non-realised random map exit (special hack!)
		1324	# {... are special paths that are not being touched
		1325	# ?xxx/... are special absolute paths
		1326	# ?random/... random maps
		1327	# /... normal maps
		1328	# ~user/... per-player map of a specific user
		1329
		1330	$path =~ s/$PATH_SEP/\//go;
		1331
		1332	# treat it as relative path if it starts with
		1333	# something that looks reasonable
		1334	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1335	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1336
		1337	$base =~ s{[^/]+/?$}{};
		1338	$path = "$base/$path";
		1339	}
		1340
		1341	for ($path) {
		1342	redo if s{//}{/};
		1343	redo if s{/\.?/}{/};
		1344	redo if s{/[^/]+/\.\./}{/};
		1345	}
		1346
		1347	$path
		1348	}
		1349
		1350	sub new_from_path {
		1351	my (undef, $path, $base) = @_;
		1352
		1353	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1354
		1355	$path = normalise $path, $base;
		1356
		1357	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1358	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1359	my $self = bless cf::map::new, $pkg;
		1360	$self->{path} = $path; $self->path ($path);
		1361	$self->init; # pass $1 etc.
		1362	return $self;
		1363	}
		1364	}
		1365
		1366	Carp::carp "unable to resolve path '$path' (base '$base').";
		1367	()
		1368	}
		1369
		1370	sub init {
		1371	my ($self) = @_;
		1372
		1373	$self
		1374	}
		1375
		1376	sub as_string {
		1377	my ($self) = @_;
		1378
		1379	"$self->{path}"
		1380	}
		1381
		1382	# the displayed name, this is a one way mapping
		1383	sub visible_name {
		1384	&as_string
		1385	}
		1386
		1387	# the original (read-only) location
		1388	sub load_path {
		1389	my ($self) = @_;
		1390
		1391	"$MAPDIR/$self->{path}.map"
		1392	}
		1393
		1394	# the temporary/swap location
		1395	sub save_path {
		1396	my ($self) = @_;
		1397
		1398	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1399	"$TMPDIR/$path.map"
		1400	}
		1401
		1402	# the unique path, undef == no special unique path
		1403	sub uniq_path {
		1404	my ($self) = @_;
		1405
		1406	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1407	"$UNIQUEDIR/$path"
1139	}	1408	}
1140		1409
1141	# and all this just because we cannot iterate over	1410	# and all this just because we cannot iterate over
1142	# all maps in C++...	1411	# all maps in C++...
1143	sub change_all_map_light {	1412	sub change_all_map_light {
…		…
1145		1414
1146	$_->change_map_light ($change)	1415	$_->change_map_light ($change)
1147	for grep $_->outdoor, values %cf::MAP;	1416	for grep $_->outdoor, values %cf::MAP;
1148	}	1417	}
1149		1418
		1419	sub decay_objects {
		1420	my ($self) = @_;
		1421
		1422	return if $self->{deny_reset};
		1423
		1424	$self->do_decay_objects;
		1425	}
		1426
		1427	sub unlink_save {
		1428	my ($self) = @_;
		1429
		1430	utf8::encode (my $save = $self->save_path);
		1431	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1432	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1433	}
		1434
1150	sub try_load_header($) {	1435	sub load_header_from($) {
1151	my ($path) = @_;	1436	my ($self, $path) = @_;
1152		1437
1153	utf8::encode $path;	1438	utf8::encode $path;
1154	aio_open $path, O_RDONLY, 0	1439	#aio_open $path, O_RDONLY, 0
		1440	# or return;
		1441
		1442	$self->_load_header ($path)
1155	or return;	1443	or return;
1156		1444
1157	my $map = cf::map::new	1445	$self->{load_path} = $path;
		1446
		1447	1
		1448	}
		1449
		1450	sub load_header_orig {
		1451	my ($self) = @_;
		1452
		1453	$self->load_header_from ($self->load_path)
		1454	}
		1455
		1456	sub load_header_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->load_header_from ($self->save_path)
		1460	}
		1461
		1462	sub prepare_temp {
		1463	my ($self) = @_;
		1464
		1465	$self->last_access ((delete $self->{last_access})
		1466	|| $cf::RUNTIME); #d#
		1467	# safety
		1468	$self->{instantiate_time} = $cf::RUNTIME
		1469	if $self->{instantiate_time} > $cf::RUNTIME;
		1470	}
		1471
		1472	sub prepare_orig {
		1473	my ($self) = @_;
		1474
		1475	$self->{load_original} = 1;
		1476	$self->{instantiate_time} = $cf::RUNTIME;
		1477	$self->last_access ($cf::RUNTIME);
		1478	$self->instantiate;
		1479	}
		1480
		1481	sub load_header {
		1482	my ($self) = @_;
		1483
		1484	if ($self->load_header_temp) {
		1485	$self->prepare_temp;
		1486	} else {
		1487	$self->load_header_orig
1158	or return;	1488	or return;
		1489	$self->prepare_orig;
		1490	}
1159		1491
1160	# for better error messages only, will be overwritten	1492	$self->{deny_reset} = 1
1161	$map->path ($path);	1493	if $self->no_reset;
1162		1494
1163	$map->load_header ($path)	1495	$self->default_region (cf::region::find_by_path $self->{path})
1164	or return;	1496	unless $self->default_region;
1165		1497
1166	$map->{load_path} = $path;	1498	1
1167
1168	$map
1169	}	1499	}
1170		1500
1171	sub find;	1501	sub find;
1172	sub find {	1502	sub find {
1173	my ($path, $origin) = @_;	1503	my ($path, $origin) = @_;
1174		1504
1175	#warn "find<$path,$origin>\n";#d#
1176
1177	$path = new cf::path $path, $origin && $origin->path;	1505	$path = normalise $path, $origin && $origin->path;
1178	my $key = $path->as_string;
1179		1506
1180	cf::lock_wait "map_find:$key";	1507	cf::lock_wait "map_find:$path";
1181		1508
1182	$cf::MAP{$key} || do {	1509	$cf::MAP{$path} || do {
1183	my $guard = cf::lock_acquire "map_find:$key";	1510	my $guard = cf::lock_acquire "map_find:$path";
1184		1511	my $map = new_from_path cf::map $path
1185	# do it the slow way
1186	my $map = try_load_header $path->save_path;
1187
1188	Coro::cede;
1189
1190	if ($map) {
1191	$map->last_access ((delete $map->{last_access})
1192	|| $cf::RUNTIME); #d#
1193	# safety
1194	$map->{instantiate_time} = $cf::RUNTIME
1195	if $map->{instantiate_time} > $cf::RUNTIME;
1196	} else {
1197	if (my $rmp = $path->random_map_params) {
1198	$map = generate_random_map $key, $rmp;
1199	} else {
1200	$map = try_load_header $path->load_path;
1201	}
1202
1203	$map or return;	1512	or return;
1204		1513
1205	$map->{load_original} = 1;
1206	$map->{instantiate_time} = $cf::RUNTIME;
1207	$map->last_access ($cf::RUNTIME);
1208	$map->instantiate;
1209
1210	# per-player maps become, after loading, normal maps
1211	$map->per_player (0) if $path->{user_rel};
1212	}
1213
1214	$map->path ($key);
1215	$map->{path} = $path;
1216	$map->{last_save} = $cf::RUNTIME;	1514	$map->{last_save} = $cf::RUNTIME;
1217		1515
1218	Coro::cede;	1516	$map->load_header
		1517	or return;
1219		1518
1220	if ($map->should_reset) {	1519	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1520	# doing this can freeze the server in a sync job, obviously
		1521	#$cf::WAIT_FOR_TICK->wait;
1221	$map->reset;	1522	$map->reset;
1222	undef $guard;	1523	undef $guard;
1223	$map = find $path	1524	return find $path;
1224	or return;
1225	}	1525	}
1226		1526
1227	$cf::MAP{$key} = $map	1527	$cf::MAP{$path} = $map
1228	}	1528	}
1229	}	1529	}
		1530
		1531	sub pre_load { }
		1532	sub post_load { }
1230		1533
1231	sub load {	1534	sub load {
1232	my ($self) = @_;	1535	my ($self) = @_;
1233		1536
		1537	local $self->{deny_reset} = 1; # loading can take a long time
		1538
1234	my $path = $self->{path};	1539	my $path = $self->{path};
		1540
		1541	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1542	my $guard = cf::lock_acquire "map_load:$path";
1236		1543
1237	return if $self->in_memory != cf::MAP_SWAPPED;	1544	return if $self->in_memory != cf::MAP_SWAPPED;
1238		1545
1239	$self->in_memory (cf::MAP_LOADING);	1546	$self->in_memory (cf::MAP_LOADING);
1240		1547
1241	$self->alloc;	1548	$self->alloc;
		1549
		1550	$self->pre_load;
		1551	Coro::cede;
		1552
1242	$self->load_objects ($self->{load_path}, 1)	1553	$self->_load_objects ($self->{load_path}, 1)
1243	or return;	1554	or return;
1244		1555
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1246	if delete $self->{load_original};	1557	if delete $self->{load_original};
1247		1558
1248	if (my $uniq = $path->uniq_path) {	1559	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	1560	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	1561	if (aio_open $uniq, O_RDONLY, 0) {
1251	$self->clear_unique_items;	1562	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	1563	$self->_load_objects ($uniq, 0);
1253	}	1564	}
1254	}	1565	}
1255		1566
1256	Coro::cede;	1567	Coro::cede;
1257
1258	# now do the right thing for maps	1568	# now do the right thing for maps
1259	$self->link_multipart_objects;	1569	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	1570	$self->difficulty ($self->estimate_difficulty)
1270	unless $self->difficulty;	1571	unless $self->difficulty;
		1572	Coro::cede;
		1573
		1574	unless ($self->{deny_activate}) {
		1575	$self->decay_objects;
		1576	$self->fix_auto_apply;
		1577	$self->update_buttons;
		1578	Coro::cede;
		1579	$self->set_darkness_map;
		1580	Coro::cede;
1271	$self->activate;	1581	$self->activate;
1272	}	1582	}
1273		1583
1274	Coro::cede;
1275
1276	$self->in_memory (cf::MAP_IN_MEMORY);	1584	$self->in_memory (cf::MAP_IN_MEMORY);
		1585	}
		1586
		1587	$self->post_load;
		1588	}
		1589
		1590	sub customise_for {
		1591	my ($self, $ob) = @_;
		1592
		1593	return find "~" . $ob->name . "/" . $self->{path}
		1594	if $self->per_player;
		1595
		1596	# return find "?party/" . $ob->name . "/" . $self->{path}
		1597	# if $self->per_party;
		1598
		1599	$self
		1600	}
		1601
		1602	# find and load all maps in the 3x3 area around a map
		1603	sub load_diag {
		1604	my ($map) = @_;
		1605
		1606	my @diag; # diagonal neighbours
		1607
		1608	for (0 .. 3) {
		1609	my $neigh = $map->tile_path ($_)
		1610	or next;
		1611	$neigh = find $neigh, $map
		1612	or next;
		1613	$neigh->load;
		1614
		1615	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1616	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1617	}
		1618
		1619	for (@diag) {
		1620	my $neigh = find @$_
		1621	or next;
		1622	$neigh->load;
		1623	}
1277	}	1624	}
1278		1625
1279	sub find_sync {	1626	sub find_sync {
1280	my ($path, $origin) = @_;	1627	my ($path, $origin) = @_;
1281		1628
1282	cf::sync_job { cf::map::find $path, $origin }	1629	cf::sync_job { find $path, $origin }
1283	}	1630	}
1284		1631
1285	sub do_load_sync {	1632	sub do_load_sync {
1286	my ($map) = @_;	1633	my ($map) = @_;
1287		1634
1288	cf::sync_job { $map->load };	1635	cf::sync_job { $map->load };
1289	}	1636	}
1290		1637
		1638	our %MAP_PREFETCH;
		1639	our $MAP_PREFETCHER = undef;
		1640
		1641	sub find_async {
		1642	my ($path, $origin) = @_;
		1643
		1644	$path = normalise $path, $origin && $origin->{path};
		1645
		1646	if (my $map = $cf::MAP{$path}) {
		1647	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1648	}
		1649
		1650	undef $MAP_PREFETCH{$path};
		1651	$MAP_PREFETCHER ||= cf::async {
		1652	while (%MAP_PREFETCH) {
		1653	for my $path (keys %MAP_PREFETCH) {
		1654	my $map = find $path
		1655	or next;
		1656	$map->load;
		1657
		1658	delete $MAP_PREFETCH{$path};
		1659	}
		1660	}
		1661	undef $MAP_PREFETCHER;
		1662	};
		1663	$MAP_PREFETCHER->prio (6);
		1664
		1665	()
		1666	}
		1667
1291	sub save {	1668	sub save {
1292	my ($self) = @_;	1669	my ($self) = @_;
1293		1670
1294	my $lock = cf::lock_acquire "map_data:" . $self->path;	1671	my $lock = cf::lock_acquire "map_data:" . $self->path;
1295		1672
1296	$self->{last_save} = $cf::RUNTIME;	1673	$self->{last_save} = $cf::RUNTIME;
1297		1674
1298	return unless $self->dirty;	1675	return unless $self->dirty;
1299		1676
1300	my $save = $self->{path}->save_path; utf8::encode $save;	1677	my $save = $self->save_path; utf8::encode $save;
1301	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
1302		1679
1303	$self->{load_path} = $save;	1680	$self->{load_path} = $save;
1304		1681
1305	return if $self->{deny_save};	1682	return if $self->{deny_save};
1306		1683
1307	local $self->{last_access} = $self->last_access;#d#	1684	local $self->{last_access} = $self->last_access;#d#
1308		1685
		1686	cf::async {
		1687	$_->contr->save for $self->players;
		1688	};
		1689
1309	if ($uniq) {	1690	if ($uniq) {
1310	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1691	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1311	$self->save_objects ($uniq, cf::IO_UNIQUES);	1692	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1312	} else {	1693	} else {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1694	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1314	}	1695	}
1315	}	1696	}
1316		1697
1317	sub swap_out {	1698	sub swap_out {
1318	my ($self) = @_;	1699	my ($self) = @_;
…		…
1332		1713
1333	sub reset_at {	1714	sub reset_at {
1334	my ($self) = @_;	1715	my ($self) = @_;
1335		1716
1336	# TODO: safety, remove and allow resettable per-player maps	1717	# TODO: safety, remove and allow resettable per-player maps
1337	return 1e99 if $self->{path}{user_rel};
1338	return 1e99 if $self->{deny_reset};	1718	return 1e99 if $self->{deny_reset};
1339		1719
1340	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1720	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1341	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1721	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1342		1722
…		…
1347	my ($self) = @_;	1727	my ($self) = @_;
1348		1728
1349	$self->reset_at <= $cf::RUNTIME	1729	$self->reset_at <= $cf::RUNTIME
1350	}	1730	}
1351		1731
1352	sub unlink_save {
1353	my ($self) = @_;
1354
1355	utf8::encode (my $save = $self->{path}->save_path);
1356	aioreq_pri 3; IO::AIO::aio_unlink $save;
1357	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1358	}
1359
1360	sub rename {
1361	my ($self, $new_path) = @_;
1362
1363	$self->unlink_save;
1364
1365	delete $cf::MAP{$self->path};
1366	$self->{path} = new cf::path $new_path;
1367	$self->path ($self->{path}->as_string);
1368	$cf::MAP{$self->path} = $self;
1369
1370	$self->save;
1371	}
1372
1373	sub reset {	1732	sub reset {
1374	my ($self) = @_;	1733	my ($self) = @_;
1375		1734
1376	my $lock = cf::lock_acquire "map_data:" . $self->path;	1735	my $lock = cf::lock_acquire "map_data:$self->{path}";
1377		1736
1378	return if $self->players;	1737	return if $self->players;
1379	return if $self->{path}{user_rel};#d#
1380		1738
1381	warn "resetting map ", $self->path;#d#	1739	warn "resetting map ", $self->path;
		1740
		1741	$self->in_memory (cf::MAP_SWAPPED);
		1742
		1743	# need to save uniques path
		1744	unless ($self->{deny_save}) {
		1745	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1746
		1747	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1748	if $uniq;
		1749	}
1382		1750
1383	delete $cf::MAP{$self->path};	1751	delete $cf::MAP{$self->path};
		1752
		1753	$self->clear;
1384		1754
1385	$_->clear_links_to ($self) for values %cf::MAP;	1755	$_->clear_links_to ($self) for values %cf::MAP;
1386		1756
1387	$self->unlink_save;	1757	$self->unlink_save;
1388	$self->destroy;	1758	$self->destroy;
…		…
1391	my $nuke_counter = "aaaa";	1761	my $nuke_counter = "aaaa";
1392		1762
1393	sub nuke {	1763	sub nuke {
1394	my ($self) = @_;	1764	my ($self) = @_;
1395		1765
		1766	delete $cf::MAP{$self->path};
		1767
		1768	$self->unlink_save;
		1769
		1770	bless $self, "cf::map";
		1771	delete $self->{deny_reset};
1396	$self->{deny_save} = 1;	1772	$self->{deny_save} = 1;
1397	$self->reset_timeout (1);	1773	$self->reset_timeout (1);
1398	$self->rename ("{nuke}/" . ($nuke_counter++));	1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1775
		1776	$cf::MAP{$self->path} = $self;
		1777
1399	$self->reset; # polite request, might not happen	1778	$self->reset; # polite request, might not happen
1400	}	1779	}
1401		1780
1402	sub customise_for {	1781	=item cf::map::unique_maps
1403	my ($map, $ob) = @_;
1404		1782
1405	if ($map->per_player) {	1783	Returns an arrayref of paths of all shared maps that have
1406	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1784	instantiated unique items. May block.
1407	}
1408		1785
1409	$map	1786	=cut
1410	}
1411		1787
1412	sub emergency_save {	1788	sub unique_maps() {
1413	my $freeze_guard = cf::freeze_mainloop;	1789	my $files = aio_readdir $UNIQUEDIR
		1790	or return;
1414		1791
1415	warn "enter emergency map save\n";	1792	my @paths;
1416		1793
1417	cf::sync_job {	1794	for (@$files) {
1418	warn "begin emergency map save\n";	1795	utf8::decode $_;
1419	$_->save for values %cf::MAP;	1796	next if /\.pst$/;
		1797	next unless /^$PATH_SEP/o;
		1798
		1799	push @paths, cf::map::normalise $_;
1420	};	1800	}
1421		1801
1422	warn "end emergency map save\n";	1802	\@paths
1423	}	1803	}
1424		1804
1425	package cf;	1805	package cf;
1426		1806
1427	=back	1807	=back
1428		1808
		1809	=head3 cf::object
		1810
		1811	=cut
		1812
		1813	package cf::object;
		1814
		1815	=over 4
		1816
		1817	=item $ob->inv_recursive
		1818
		1819	Returns the inventory of the object _and_ their inventories, recursively.
		1820
		1821	=cut
		1822
		1823	sub inv_recursive_;
		1824	sub inv_recursive_ {
		1825	map { $_, inv_recursive_ $_->inv } @_
		1826	}
		1827
		1828	sub inv_recursive {
		1829	inv_recursive_ inv $_[0]
		1830	}
		1831
		1832	package cf;
		1833
		1834	=back
1429		1835
1430	=head3 cf::object::player	1836	=head3 cf::object::player
1431		1837
1432	=over 4	1838	=over 4
1433		1839
…		…
1473		1879
1474	=item $player_object->enter_link	1880	=item $player_object->enter_link
1475		1881
1476	Freezes the player and moves him/her to a special map (C<{link}>).	1882	Freezes the player and moves him/her to a special map (C<{link}>).
1477		1883
1478	The player should be reaosnably safe there for short amounts of time. You	1884	The player should be reasonably safe there for short amounts of time. You
1479	I<MUST> call C<leave_link> as soon as possible, though.	1885	I<MUST> call C<leave_link> as soon as possible, though.
1480		1886
		1887	Will never block.
		1888
1481	=item $player_object->leave_link ($map, $x, $y)	1889	=item $player_object->leave_link ($map, $x, $y)
1482		1890
1483	Moves the player out of the specila link map onto the given map. If the	1891	Moves the player out of the special C<{link}> map onto the specified
1484	map is not valid (or omitted), the player will be moved back to the	1892	map. If the map is not valid (or omitted), the player will be moved back
1485	location he/she was before the call to C<enter_link>, or, if that fails,	1893	to the location he/she was before the call to C<enter_link>, or, if that
1486	to the emergency map position.	1894	fails, to the emergency map position.
1487		1895
1488	Might block.	1896	Might block.
1489		1897
1490	=cut	1898	=cut
		1899
		1900	sub link_map {
		1901	unless ($LINK_MAP) {
		1902	$LINK_MAP = cf::map::find "{link}"
		1903	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1904	$LINK_MAP->load;
		1905	}
		1906
		1907	$LINK_MAP
		1908	}
1491		1909
1492	sub cf::object::player::enter_link {	1910	sub cf::object::player::enter_link {
1493	my ($self) = @_;	1911	my ($self) = @_;
1494		1912
1495	$self->deactivate_recursive;	1913	$self->deactivate_recursive;
1496		1914
1497	return if $self->map == $LINK_MAP;	1915	return if UNIVERSAL::isa $self->map, "ext::map_link";
1498		1916
1499	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1917	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1500	if $self->map;	1918	if $self->map && $self->map->{path} ne "{link}";
1501		1919
1502	$self->enter_map ($LINK_MAP, 20, 20);	1920	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1503	}	1921	}
1504		1922
1505	sub cf::object::player::leave_link {	1923	sub cf::object::player::leave_link {
1506	my ($self, $map, $x, $y) = @_;	1924	my ($self, $map, $x, $y) = @_;
		1925
		1926	return unless $self->contr->active;
1507		1927
1508	my $link_pos = delete $self->{_link_pos};	1928	my $link_pos = delete $self->{_link_pos};
1509		1929
1510	unless ($map) {	1930	unless ($map) {
1511	# restore original map position	1931	# restore original map position
…		…
1525	# use -1 or undef as default coordinates, not 0, 0	1945	# use -1 or undef as default coordinates, not 0, 0
1526	($x, $y) = ($map->enter_x, $map->enter_y)	1946	($x, $y) = ($map->enter_x, $map->enter_y)
1527	if $x <=0 && $y <= 0;	1947	if $x <=0 && $y <= 0;
1528		1948
1529	$map->load;	1949	$map->load;
		1950	$map->load_diag;
1530		1951
		1952	return unless $self->contr->active;
1531	$self->activate_recursive;	1953	$self->activate_recursive;
		1954
		1955	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1532	$self->enter_map ($map, $x, $y);	1956	$self->enter_map ($map, $x, $y);
1533	}	1957	}
1534		1958
1535	cf::player->attach (
1536	on_logout => sub {
1537	my ($pl) = @_;
1538
1539	# abort map switching before logout
1540	if ($pl->ob->{_link_pos}) {
1541	cf::sync_job {
1542	$pl->ob->leave_link
1543	};
1544	}
1545	},
1546	on_login => sub {
1547	my ($pl) = @_;
1548
1549	# try to abort aborted map switching on player login :)
1550	# should happen only on crashes
1551	if ($pl->ob->{_link_pos}) {
1552
1553	$pl->ob->enter_link;
1554	(async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	$pl->ob->reply (undef,
1558	"There was an internal problem at your last logout, "
1559	. "the server will try to bring you to your intended destination in a second.",
1560	cf::NDI_RED);
1561	Coro::Timer::sleep 1;
1562	$pl->ob->leave_link;
1563	})->prio (2);
1564	}
1565	},
1566	);
1567
1568	=item $player_object->goto ($path, $x, $y)	1959	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1569		1960
		1961	Moves the player to the given map-path and coordinates by first freezing
		1962	her, loading and preparing them map, calling the provided $check callback
		1963	that has to return the map if sucecssful, and then unfreezes the player on
		1964	the new (success) or old (failed) map position.
		1965
1570	=cut	1966	=cut
		1967
		1968	our $GOTOGEN;
1571		1969
1572	sub cf::object::player::goto {	1970	sub cf::object::player::goto {
1573	my ($self, $path, $x, $y) = @_;	1971	my ($self, $path, $x, $y, $check) = @_;
		1972
		1973	# do generation counting so two concurrent goto's will be executed in-order
		1974	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1574		1975
1575	$self->enter_link;	1976	$self->enter_link;
1576		1977
1577	(async {	1978	(async {
1578	$path = new cf::path $path;	1979	my $map = eval {
1579
1580	my $map = cf::map::find $path->as_string;	1980	my $map = cf::map::find $path;
		1981
		1982	if ($map) {
1581	$map = $map->customise_for ($self) if $map;	1983	$map = $map->customise_for ($self);
1582		1984	$map = $check->($map) if $check && $map;
1583	# warn "entering ", $map->path, " at ($x, $y)\n"	1985	} else {
1584	# if $map;
1585
1586	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1986	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1987	}
1587		1988
		1989	$map
		1990	};
		1991
		1992	if ($@) {
		1993	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1994	LOG llevError | logBacktrace, Carp::longmess $@;
		1995	}
		1996
		1997	if ($gen == $self->{_goto_generation}) {
		1998	delete $self->{_goto_generation};
1588	$self->leave_link ($map, $x, $y);	1999	$self->leave_link ($map, $x, $y);
		2000	}
1589	})->prio (1);	2001	})->prio (1);
1590	}	2002	}
1591		2003
1592	=item $player_object->enter_exit ($exit_object)	2004	=item $player_object->enter_exit ($exit_object)
1593		2005
…		…
1595		2007
1596	sub parse_random_map_params {	2008	sub parse_random_map_params {
1597	my ($spec) = @_;	2009	my ($spec) = @_;
1598		2010
1599	my $rmp = { # defaults	2011	my $rmp = { # defaults
1600	xsize => 10,	2012	xsize => (cf::rndm 15, 40),
1601	ysize => 10,	2013	ysize => (cf::rndm 15, 40),
		2014	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2015	#layout => string,
1602	};	2016	};
1603		2017
1604	for (split /\n/, $spec) {	2018	for (split /\n/, $spec) {
1605	my ($k, $v) = split /\s+/, $_, 2;	2019	my ($k, $v) = split /\s+/, $_, 2;
1606		2020
…		…
1610	$rmp	2024	$rmp
1611	}	2025	}
1612		2026
1613	sub prepare_random_map {	2027	sub prepare_random_map {
1614	my ($exit) = @_;	2028	my ($exit) = @_;
		2029
		2030	my $guard = cf::lock_acquire "exit_prepare:$exit";
1615		2031
1616	# all this does is basically replace the /! path by	2032	# all this does is basically replace the /! path by
1617	# a new random map path (?random/...) with a seed	2033	# a new random map path (?random/...) with a seed
1618	# that depends on the exit object	2034	# that depends on the exit object
1619		2035
1620	my $rmp = parse_random_map_params $exit->msg;	2036	my $rmp = parse_random_map_params $exit->msg;
1621		2037
1622	if ($exit->map) {	2038	if ($exit->map) {
1623	$rmp->{region} = $exit->map->region_name;	2039	$rmp->{region} = $exit->region->name;
1624	$rmp->{origin_map} = $exit->map->path;	2040	$rmp->{origin_map} = $exit->map->path;
1625	$rmp->{origin_x} = $exit->x;	2041	$rmp->{origin_x} = $exit->x;
1626	$rmp->{origin_y} = $exit->y;	2042	$rmp->{origin_y} = $exit->y;
1627	}	2043	}
1628		2044
1629	$rmp->{random_seed} ||= $exit->random_seed;	2045	$rmp->{random_seed} ||= $exit->random_seed;
1630		2046
1631	my $data = cf::to_json $rmp;	2047	my $data = cf::to_json $rmp;
1632	my $md5 = Digest::MD5::md5_hex $data;	2048	my $md5 = Digest::MD5::md5_hex $data;
		2049	my $meta = "$RANDOMDIR/$md5.meta";
1633		2050
1634	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2051	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1635	aio_write $fh, 0, (length $data), $data, 0;	2052	aio_write $fh, 0, (length $data), $data, 0;
		2053	undef $fh;
		2054	aio_rename "$meta~", $meta;
1636		2055
1637	$exit->slaying ("?random/$md5");	2056	$exit->slaying ("?random/$md5");
1638	$exit->msg (undef);	2057	$exit->msg (undef);
1639	}	2058	}
1640	}	2059	}
1641		2060
1642	sub cf::object::player::enter_exit {	2061	sub cf::object::player::enter_exit {
1643	my ($self, $exit) = @_;	2062	my ($self, $exit) = @_;
1644		2063
1645	return unless $self->type == cf::PLAYER;	2064	return unless $self->type == cf::PLAYER;
		2065
		2066	if ($exit->slaying eq "/!") {
		2067	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2068	# the problem is that $exit might not survive long enough
		2069	# so it needs to be done right now, right here
		2070	cf::sync_job { prepare_random_map $exit };
		2071	}
		2072
		2073	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2074	my $hp = $exit->stats->hp;
		2075	my $sp = $exit->stats->sp;
1646		2076
1647	$self->enter_link;	2077	$self->enter_link;
1648		2078
1649	(async {	2079	(async {
1650	$self->deactivate_recursive; # just to be sure	2080	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2081	unless (eval {
1652	prepare_random_map $exit	2082	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1657		2083
1658	1;	2084	1;
1659	}) {	2085	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2086	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "I'll try to bring you back to the map you were before. "	2087	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2088	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2089	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2090
1665	warn "ERROR in enter_exit: $@";	2091	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2092	$self->leave_link;
1667	}	2093	}
1668	})->prio (1);	2094	})->prio (1);
…		…
1681		2107
1682	sub cf::client::send_drawinfo {	2108	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2109	my ($self, $text, $flags) = @_;
1684		2110
1685	utf8::encode $text;	2111	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2112	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2113	}
1688		2114
		2115	=item $client->ext_event ($type, %msg)
		2116
		2117	Sends an exti event to the client.
		2118
		2119	=cut
		2120
		2121	sub cf::client::ext_event($$%) {
		2122	my ($self, $type, %msg) = @_;
		2123
		2124	$msg{msgtype} = "event_$type";
		2125	$self->send_packet ("ext " . cf::to_json \%msg);
		2126	}
1689		2127
1690	=item $success = $client->query ($flags, "text", \&cb)	2128	=item $success = $client->query ($flags, "text", \&cb)
1691		2129
1692	Queues a query to the client, calling the given callback with	2130	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2131	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1722	# get handled first	2160	# get handled first
1723	my $queue = delete $ns->{query_queue}	2161	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	2162	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		2163
1726	(shift @$queue)->[1]->($msg);	2164	(shift @$queue)->[1]->($msg);
		2165	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2166
1728	push @{ $ns->{query_queue} }, @$queue;	2167	push @{ $ns->{query_queue} }, @$queue;
1729		2168
1730	if (@{ $ns->{query_queue} } == @$queue) {	2169	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2170	if (@$queue) {
…		…
1789		2228
1790	# here we export the classes and methods available to script code	2229	# here we export the classes and methods available to script code
1791		2230
1792	=pod	2231	=pod
1793		2232
1794	The following fucntions and emthods are available within a safe environment:	2233	The following functions and methods are available within a safe environment:
1795		2234
1796	cf::object contr pay_amount pay_player map	2235	cf::object contr pay_amount pay_player map
1797	cf::object::player player	2236	cf::object::player player
1798	cf::player peaceful	2237	cf::player peaceful
1799	cf::map trigger	2238	cf::map trigger
…		…
1884	#############################################################################	2323	#############################################################################
1885		2324
1886	=head2 EXTENSION DATABASE SUPPORT	2325	=head2 EXTENSION DATABASE SUPPORT
1887		2326
1888	Crossfire maintains a very simple database for extension use. It can	2327	Crossfire maintains a very simple database for extension use. It can
1889	currently store anything that can be serialised using Storable, which	2328	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1890	excludes objects.	2329	convert to/from binary).
1891		2330
1892	The parameter C<$family> should best start with the name of the extension	2331	The parameter C<$family> should best start with the name of the extension
1893	using it, it should be unique.	2332	using it, it should be unique.
1894		2333
1895	=over 4	2334	=over 4
1896		2335
1897	=item $hashref = cf::db_get $family
1898
1899	Return a hashref for use by the extension C<$family>, which can be
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902
1903	=item $value = cf::db_get $family => $key	2336	=item $value = cf::db_get $family => $key
1904		2337
1905	Returns a single value from the database	2338	Returns a single value from the database.
1906
1907	=item cf::db_put $family => $hashref
1908
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911		2339
1912	=item cf::db_put $family => $key => $value	2340	=item cf::db_put $family => $key => $value
1913		2341
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you	2342	Stores the given C<$value> in the family.
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924		2343
1925	=cut	2344	=cut
1926		2345
1927	our $DB;	2346	our $DB;
1928		2347
1929	{	2348	sub db_init {
1930	my $path = cf::localdir . "/database.pst";	2349	unless ($DB) {
		2350	$DB = BDB::db_create $DB_ENV;
1931		2351
1932	sub db_load() {	2352	cf::sync_job {
1933	$DB = stat $path ? Storable::retrieve $path : { };	2353	eval {
1934	}	2354	$DB->set_flags (BDB::CHKSUM);
1935		2355
1936	my $pid;	2356	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1937		2357	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1938	sub db_save() {	2358	cf::cleanup "db_open(db): $!" if $!;
1939	waitpid $pid, 0 if $pid;	2359	};
1940	if (0 == ($pid = fork)) {	2360	cf::cleanup "db_open(db): $@" if $@;
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}	2361	};
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	2362	}
		2363	}
1958		2364
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}
1963
1964	sub db_get($;$) {	2365	sub db_get($$) {
1965	@_ >= 2	2366	my $key = "$_[0]/$_[1]";
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969		2367
		2368	cf::sync_job {
		2369	BDB::db_get $DB, undef, $key, my $data;
		2370
		2371	$! ? ()
		2372	: $data
		2373	}
		2374	}
		2375
1970	sub db_put($$;$) {	2376	sub db_put($$$) {
1971	if (@_ >= 3) {	2377	BDB::dbreq_pri 4;
1972	$DB->{$_[0]}{$_[1]} = $_[2];	2378	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1973	} else {	2379	}
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978		2380
1979	cf::global->attach (	2381	=item cf::cache $id => [$paths...], $processversion => $process
1980	prio => 10000,	2382
1981	on_cleanup => sub {	2383	Generic caching function that returns the value of the resource $id,
1982	db_sync;	2384	caching and regenerating as required.
		2385
		2386	This function can block.
		2387
		2388	=cut
		2389
		2390	sub cache {
		2391	my ($id, $src, $processversion, $process) = @_;
		2392
		2393	my $meta =
		2394	join "\x00",
		2395	$processversion,
		2396	map {
		2397	aio_stat $_
		2398	and Carp::croak "$_: $!";
		2399
		2400	($_, (stat _)[7,9])
		2401	} @$src;
		2402
		2403	my $dbmeta = db_get cache => "$id/meta";
		2404	if ($dbmeta ne $meta) {
		2405	# changed, we may need to process
		2406
		2407	my @data;
		2408	my $md5;
		2409
		2410	for (0 .. $#$src) {
		2411	0 <= aio_load $src->[$_], $data[$_]
		2412	or Carp::croak "$src->[$_]: $!";
1983	},	2413	}
1984	);	2414
		2415	# if processing is expensive, check
		2416	# checksum first
		2417	if (1) {
		2418	$md5 =
		2419	join "\x00",
		2420	$processversion,
		2421	map {
		2422	Coro::cede;
		2423	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2424	} 0.. $#$src;
		2425
		2426
		2427	my $dbmd5 = db_get cache => "$id/md5";
		2428	if ($dbmd5 eq $md5) {
		2429	db_put cache => "$id/meta", $meta;
		2430
		2431	return db_get cache => "$id/data";
		2432	}
		2433	}
		2434
		2435	my $t1 = Time::HiRes::time;
		2436	my $data = $process->(\@data);
		2437	my $t2 = Time::HiRes::time;
		2438
		2439	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2440
		2441	db_put cache => "$id/data", $data;
		2442	db_put cache => "$id/md5" , $md5;
		2443	db_put cache => "$id/meta", $meta;
		2444
		2445	return $data;
		2446	}
		2447
		2448	db_get cache => "$id/data"
		2449	}
		2450
		2451	=item fork_call { }, $args
		2452
		2453	Executes the given code block with the given arguments in a seperate
		2454	process, returning the results. Everything must be serialisable with
		2455	Coro::Storable. May, of course, block. Note that the executed sub may
		2456	never block itself or use any form of Event handling.
		2457
		2458	=cut
		2459
		2460	sub fork_call(&@) {
		2461	my ($cb, @args) = @_;
		2462
		2463	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2464	# or die "socketpair: $!";
		2465	pipe my $fh1, my $fh2
		2466	or die "pipe: $!";
		2467
		2468	if (my $pid = fork) {
		2469	close $fh2;
		2470
		2471	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2472	$res = Coro::Storable::thaw $res;
		2473
		2474	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2475
		2476	die $$res unless "ARRAY" eq ref $res;
		2477
		2478	return wantarray ? @$res : $res->[-1];
		2479	} else {
		2480	reset_signals;
		2481	local $SIG{__WARN__};
		2482	local $SIG{__DIE__};
		2483	eval {
		2484	close $fh1;
		2485
		2486	my @res = eval { $cb->(@args) };
		2487	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2488	};
		2489
		2490	warn $@ if $@;
		2491	_exit 0;
		2492	}
1985	}	2493	}
1986		2494
1987	#############################################################################	2495	#############################################################################
1988	# the server's main()	2496	# the server's init and main functions
		2497
		2498	sub load_facedata($) {
		2499	my ($path) = @_;
		2500
		2501	warn "loading facedata from $path\n";
		2502
		2503	my $facedata;
		2504	0 < aio_load $path, $facedata
		2505	or die "$path: $!";
		2506
		2507	$facedata = Coro::Storable::thaw $facedata;
		2508
		2509	$facedata->{version} == 2
		2510	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2511
		2512	{
		2513	my $faces = $facedata->{faceinfo};
		2514
		2515	while (my ($face, $info) = each %$faces) {
		2516	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2517	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2518	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2519	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2520	Coro::cede;
		2521	}
		2522
		2523	while (my ($face, $info) = each %$faces) {
		2524	next unless $info->{smooth};
		2525	my $idx = cf::face::find $face
		2526	or next;
		2527	if (my $smooth = cf::face::find $info->{smooth}) {
		2528	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2529	} else {
		2530	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2531	}
		2532	Coro::cede;
		2533	}
		2534	}
		2535
		2536	{
		2537	my $anims = $facedata->{animinfo};
		2538
		2539	while (my ($anim, $info) = each %$anims) {
		2540	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2541	Coro::cede;
		2542	}
		2543
		2544	cf::anim::invalidate_all; # d'oh
		2545	}
		2546
		2547	1
		2548	}
		2549
		2550	sub reload_regions {
		2551	load_resource_file "$MAPDIR/regions"
		2552	or die "unable to load regions file\n";
		2553	}
		2554
		2555	sub reload_facedata {
		2556	load_facedata "$DATADIR/facedata"
		2557	or die "unable to load facedata\n";
		2558	}
		2559
		2560	sub reload_archetypes {
		2561	load_resource_file "$DATADIR/archetypes"
		2562	or die "unable to load archetypes\n";
		2563	}
		2564
		2565	sub reload_treasures {
		2566	load_resource_file "$DATADIR/treasures"
		2567	or die "unable to load treasurelists\n";
		2568	}
		2569
		2570	sub reload_resources {
		2571	warn "reloading resource files...\n";
		2572
		2573	reload_regions;
		2574	reload_facedata;
		2575	#reload_archetypes;#d#
		2576	reload_archetypes;
		2577	reload_treasures;
		2578
		2579	warn "finished reloading resource files\n";
		2580	}
		2581
		2582	sub init {
		2583	reload_resources;
		2584	}
1989		2585
1990	sub cfg_load {	2586	sub cfg_load {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	2587	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	2588	or return;
1993		2589
1994	local $/;	2590	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	2591	*CFG = YAML::Syck::Load <$fh>;
1996		2592
…		…
1999	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2595	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2000	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2596	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2001		2597
2002	if (exists $CFG{mlockall}) {	2598	if (exists $CFG{mlockall}) {
2003	eval {	2599	eval {
2004	$CFG{mlockall} ? &mlockall : &munlockall	2600	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2005	and die "WARNING: m(un)lockall failed: $!\n";	2601	and die "WARNING: m(un)lockall failed: $!\n";
2006	};	2602	};
2007	warn $@ if $@;	2603	warn $@ if $@;
2008	}	2604	}
2009	}	2605	}
2010		2606
2011	sub main {	2607	sub main {
2012	# we must not ever block the main coroutine	2608	# we must not ever block the main coroutine
2013	local $Coro::idle = sub {	2609	local $Coro::idle = sub {
2014	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2610	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2611	(async {
2015	async { Event::one_event };	2612	Event::one_event;
		2613	})->prio (Coro::PRIO_MAX);
2016	};	2614	};
2017		2615
2018	cfg_load;	2616	cfg_load;
2019	db_load;	2617	db_init;
2020	load_extensions;	2618	load_extensions;
		2619
		2620	$TICK_WATCHER->start;
2021	Event::loop;	2621	Event::loop;
2022	}	2622	}
2023		2623
2024	#############################################################################	2624	#############################################################################
2025	# initialisation	2625	# initialisation and cleanup
2026		2626
		2627	# install some emergency cleanup handlers
		2628	BEGIN {
		2629	for my $signal (qw(INT HUP TERM)) {
		2630	Event->signal (
		2631	reentrant => 0,
		2632	data => WF_AUTOCANCEL,
		2633	signal => $signal,
		2634	prio => 0,
		2635	cb => sub {
		2636	cf::cleanup "SIG$signal";
		2637	},
		2638	);
		2639	}
		2640	}
		2641
		2642	sub emergency_save() {
		2643	my $freeze_guard = cf::freeze_mainloop;
		2644
		2645	warn "enter emergency perl save\n";
		2646
		2647	cf::sync_job {
		2648	# use a peculiar iteration method to avoid tripping on perl
		2649	# refcount bugs in for. also avoids problems with players
		2650	# and maps saved/destroyed asynchronously.
		2651	warn "begin emergency player save\n";
		2652	for my $login (keys %cf::PLAYER) {
		2653	my $pl = $cf::PLAYER{$login} or next;
		2654	$pl->valid or next;
		2655	$pl->save;
		2656	}
		2657	warn "end emergency player save\n";
		2658
		2659	warn "begin emergency map save\n";
		2660	for my $path (keys %cf::MAP) {
		2661	my $map = $cf::MAP{$path} or next;
		2662	$map->valid or next;
		2663	$map->save;
		2664	}
		2665	warn "end emergency map save\n";
		2666
		2667	warn "begin emergency database checkpoint\n";
		2668	BDB::db_env_txn_checkpoint $DB_ENV;
		2669	warn "end emergency database checkpoint\n";
		2670	};
		2671
		2672	warn "leave emergency perl save\n";
		2673	}
		2674
		2675	sub post_cleanup {
		2676	my ($make_core) = @_;
		2677
		2678	warn Carp::longmess "post_cleanup backtrace"
		2679	if $make_core;
		2680	}
		2681
2027	sub reload() {	2682	sub do_reload_perl() {
2028	# can/must only be called in main	2683	# can/must only be called in main
2029	if ($Coro::current != $Coro::main) {	2684	if ($Coro::current != $Coro::main) {
2030	warn "can only reload from main coroutine\n";	2685	warn "can only reload from main coroutine";
2031	return;	2686	return;
2032	}	2687	}
2033		2688
2034	warn "reloading...";	2689	warn "reloading...";
2035		2690
2036	my $guard = freeze_mainloop;	2691	warn "entering sync_job";
		2692
		2693	cf::sync_job {
		2694	cf::write_runtime; # external watchdog should not bark
2037	cf::emergency_save;	2695	cf::emergency_save;
		2696	cf::write_runtime; # external watchdog should not bark
2038		2697
2039	eval {	2698	warn "syncing database to disk";
		2699	BDB::db_env_txn_checkpoint $DB_ENV;
		2700
2040	# if anything goes wrong in here, we should simply crash as we already saved	2701	# if anything goes wrong in here, we should simply crash as we already saved
2041		2702
2042	# cancel all watchers	2703	warn "cancelling all WF_AUTOCANCEL watchers";
2043	for (Event::all_watchers) {	2704	for (Event::all_watchers) {
2044	$_->cancel if $_->data & WF_AUTOCANCEL;	2705	$_->cancel if $_->data & WF_AUTOCANCEL;
2045	}	2706	}
2046		2707
		2708	warn "flushing outstanding aio requests";
		2709	for (;;) {
		2710	BDB::flush;
		2711	IO::AIO::flush;
		2712	Coro::cede;
		2713	last unless IO::AIO::nreqs || BDB::nreqs;
		2714	warn "iterate...";
		2715	}
		2716
		2717	++$RELOAD;
		2718
2047	# cancel all extension coros	2719	warn "cancelling all extension coros";
2048	$_->cancel for values %EXT_CORO;	2720	$_->cancel for values %EXT_CORO;
2049	%EXT_CORO = ();	2721	%EXT_CORO = ();
2050		2722
2051	# unload all extensions	2723	warn "removing commands";
2052	for (@exts) {	2724	%COMMAND = ();
		2725
		2726	warn "removing ext commands";
		2727	%EXTCMD = ();
		2728
		2729	warn "unloading/nuking all extensions";
		2730	for my $pkg (@EXTS) {
2053	warn "unloading <$_>";	2731	warn "... unloading $pkg";
2054	unload_extension $_;	2732
		2733	if (my $cb = $pkg->can ("unload")) {
		2734	eval {
		2735	$cb->($pkg);
		2736	1
		2737	} or warn "$pkg unloaded, but with errors: $@";
2055	}	2738	}
2056		2739
		2740	warn "... nuking $pkg";
		2741	Symbol::delete_package $pkg;
		2742	}
		2743
2057	# unload all modules loaded from $LIBDIR	2744	warn "unloading all perl modules loaded from $LIBDIR";
2058	while (my ($k, $v) = each %INC) {	2745	while (my ($k, $v) = each %INC) {
2059	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2746	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2060		2747
2061	warn "removing <$k>";	2748	warn "... unloading $k";
2062	delete $INC{$k};	2749	delete $INC{$k};
2063		2750
2064	$k =~ s/\.pm$//;	2751	$k =~ s/\.pm$//;
2065	$k =~ s/\//::/g;	2752	$k =~ s/\//::/g;
2066		2753
…		…
2069	}	2756	}
2070		2757
2071	Symbol::delete_package $k;	2758	Symbol::delete_package $k;
2072	}	2759	}
2073		2760
2074	# sync database to disk
2075	cf::db_sync;
2076	IO::AIO::flush;
2077
2078	# get rid of safe::, as good as possible	2761	warn "getting rid of safe::, as good as possible";
2079	Symbol::delete_package "safe::$_"	2762	Symbol::delete_package "safe::$_"
2080	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2763	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2081		2764
2082	# remove register_script_function callbacks
2083	# TODO
2084
2085	# unload cf.pm "a bit"	2765	warn "unloading cf.pm \"a bit\"";
2086	delete $INC{"cf.pm"};	2766	delete $INC{"cf.pm"};
		2767	delete $INC{"cf/pod.pm"};
2087		2768
2088	# don't, removes xs symbols, too,	2769	# don't, removes xs symbols, too,
2089	# and global variables created in xs	2770	# and global variables created in xs
2090	#Symbol::delete_package __PACKAGE__;	2771	#Symbol::delete_package __PACKAGE__;
2091		2772
2092	# reload cf.pm	2773	warn "unload completed, starting to reload now";
		2774
2093	warn "reloading cf.pm";	2775	warn "reloading cf.pm";
2094	require cf;	2776	require cf;
2095	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2777	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2096		2778
2097	# load config and database again	2779	warn "loading config and database again";
2098	cf::cfg_load;	2780	cf::cfg_load;
2099	cf::db_load;
2100		2781
2101	# load extensions
2102	warn "load extensions";	2782	warn "loading extensions";
2103	cf::load_extensions;	2783	cf::load_extensions;
2104		2784
2105	# reattach attachments to objects	2785	warn "reattaching attachments to objects/players";
2106	warn "reattach";	2786	_global_reattach; # objects, sockets
2107	_global_reattach;	2787	warn "reattaching attachments to maps";
2108	};	2788	reattach $_ for values %MAP;
		2789	warn "reattaching attachments to players";
		2790	reattach $_ for values %PLAYER;
2109		2791
2110	if ($@) {	2792	warn "leaving sync_job";
		2793
		2794	1
		2795	} or do {
2111	warn $@;	2796	warn $@;
2112	warn "error while reloading, exiting.";	2797	warn "error while reloading, exiting.";
2113	exit 1;	2798	exit 1;
2114	}	2799	};
2115		2800
2116	warn "reloaded successfully";	2801	warn "reloaded";
2117	};	2802	};
2118		2803
2119	#############################################################################	2804	our $RELOAD_WATCHER; # used only during reload
2120		2805
2121	unless ($LINK_MAP) {	2806	sub reload_perl() {
2122	$LINK_MAP = cf::map::new;	2807	# doing reload synchronously and two reloads happen back-to-back,
		2808	# coro crashes during coro_state_free->destroy here.
2123		2809
2124	$LINK_MAP->width (41);	2810	$RELOAD_WATCHER ||= Event->timer (
2125	$LINK_MAP->height (41);	2811	reentrant => 0,
2126	$LINK_MAP->alloc;
2127	$LINK_MAP->path ("{link}");
2128	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2129	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2130
2131	# dirty hack because... archetypes are not yet loaded
2132	Event->timer (
2133	after => 10,	2812	after => 0,
		2813	data => WF_AUTOCANCEL,
2134	cb => sub {	2814	cb => sub {
2135	$_[0]->w->cancel;	2815	do_reload_perl;
2136		2816	undef $RELOAD_WATCHER;
2137	# provide some exits "home"
2138	my $exit = cf::object::new "exit";
2139
2140	$exit->slaying ($EMERGENCY_POSITION->[0]);
2141	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2142	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2143
2144	$LINK_MAP->insert ($exit->clone, 19, 19);
2145	$LINK_MAP->insert ($exit->clone, 19, 20);
2146	$LINK_MAP->insert ($exit->clone, 19, 21);
2147	$LINK_MAP->insert ($exit->clone, 20, 19);
2148	$LINK_MAP->insert ($exit->clone, 20, 21);
2149	$LINK_MAP->insert ($exit->clone, 21, 19);
2150	$LINK_MAP->insert ($exit->clone, 21, 20);
2151	$LINK_MAP->insert ($exit->clone, 21, 21);
2152
2153	$exit->destroy;
2154	});	2817	},
2155		2818	);
2156	$LINK_MAP->{deny_save} = 1;
2157	$LINK_MAP->{deny_reset} = 1;
2158
2159	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2160	}	2819	}
2161
2162	register "<global>", __PACKAGE__;
2163		2820
2164	register_command "reload" => sub {	2821	register_command "reload" => sub {
2165	my ($who, $arg) = @_;	2822	my ($who, $arg) = @_;
2166		2823
2167	if ($who->flag (FLAG_WIZ)) {	2824	if ($who->flag (FLAG_WIZ)) {
2168	$who->message ("start of reload.");
2169	reload;
2170	$who->message ("end of reload.");	2825	$who->message ("reloading server.");
		2826	async { reload_perl };
2171	}	2827	}
2172	};	2828	};
2173		2829
2174	unshift @INC, $LIBDIR;	2830	unshift @INC, $LIBDIR;
2175		2831
		2832	my $bug_warning = 0;
		2833
		2834	our @WAIT_FOR_TICK;
		2835	our @WAIT_FOR_TICK_BEGIN;
		2836
		2837	sub wait_for_tick {
		2838	return unless $TICK_WATCHER->is_active;
		2839	return if $Coro::current == $Coro::main;
		2840
		2841	my $signal = new Coro::Signal;
		2842	push @WAIT_FOR_TICK, $signal;
		2843	$signal->wait;
		2844	}
		2845
		2846	sub wait_for_tick_begin {
		2847	return unless $TICK_WATCHER->is_active;
		2848	return if $Coro::current == $Coro::main;
		2849
		2850	my $signal = new Coro::Signal;
		2851	push @WAIT_FOR_TICK_BEGIN, $signal;
		2852	$signal->wait;
		2853	}
		2854
		2855	my $min = 1e6;#d#
		2856	my $avg = 10;
2176	$TICK_WATCHER = Event->timer (	2857	$TICK_WATCHER = Event->timer (
2177	reentrant => 0,	2858	reentrant => 0,
		2859	parked => 1,
2178	prio => 0,	2860	prio => 0,
2179	at => $NEXT_TICK || $TICK,	2861	at => $NEXT_TICK || $TICK,
2180	data => WF_AUTOCANCEL,	2862	data => WF_AUTOCANCEL,
2181	cb => sub {	2863	cb => sub {
		2864	if ($Coro::current != $Coro::main) {
		2865	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2866	unless ++$bug_warning > 10;
		2867	return;
		2868	}
		2869
		2870	$NOW = $tick_start = Event::time;
		2871
2182	cf::server_tick; # one server iteration	2872	cf::server_tick; # one server iteration
		2873
		2874	0 && sync_job {#d#
		2875	for(1..10) {
		2876	my $t = Event::time;
		2877	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2878	or die;
		2879
		2880	$map->width (50);
		2881	$map->height (50);
		2882	$map->alloc;
		2883	$map->_load_objects ("/tmp/x.map", 1);
		2884	my $t = Event::time - $t;
		2885
		2886	#next unless $t < 0.0013;#d#
		2887	if ($t < $min) {
		2888	$min = $t;
		2889	}
		2890	$avg = $avg * 0.99 + $t * 0.01;
		2891	}
		2892	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2893	exit 0;
		2894	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2895	};
		2896
2183	$RUNTIME += $TICK;	2897	$RUNTIME += $TICK;
2184	$NEXT_TICK += $TICK;	2898	$NEXT_TICK += $TICK;
2185		2899
		2900	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2901	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2902	Coro::async_pool {
		2903	write_runtime
		2904	or warn "ERROR: unable to write runtime file: $!";
		2905	};
		2906	}
		2907
		2908	# my $AFTER = Event::time;
		2909	# warn $AFTER - $NOW;#d#
		2910
		2911	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2912	$sig->send;
		2913	}
		2914	while (my $sig = shift @WAIT_FOR_TICK) {
		2915	$sig->send;
		2916	}
		2917
		2918	$NOW = Event::time;
		2919
2186	# if we are delayed by four ticks or more, skip them all	2920	# if we are delayed by four ticks or more, skip them all
2187	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2921	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2188		2922
2189	$TICK_WATCHER->at ($NEXT_TICK);	2923	$TICK_WATCHER->at ($NEXT_TICK);
2190	$TICK_WATCHER->start;	2924	$TICK_WATCHER->start;
		2925
		2926	$LOAD = ($NOW - $tick_start) / $TICK;
		2927	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2928
		2929	_post_tick;
		2930
		2931
2191	},	2932	},
2192	);	2933	);
2193		2934
		2935	{
2194	IO::AIO::max_poll_time $TICK * 0.2;	2936	BDB::max_poll_time $TICK * 0.1;
2195		2937	$BDB_POLL_WATCHER = Event->io (
2196	Event->io (	2938	reentrant => 0,
2197	fd => IO::AIO::poll_fileno,	2939	fd => BDB::poll_fileno,
2198	poll => 'r',	2940	poll => 'r',
2199	prio => 5,	2941	prio => 0,
2200	data => WF_AUTOCANCEL,
2201	cb => \&IO::AIO::poll_cb,
2202	);
2203
2204	Event->timer (
2205	data => WF_AUTOCANCEL,	2942	data => WF_AUTOCANCEL,
2206	after => 0,	2943	cb => \&BDB::poll_cb,
2207	interval => 10,	2944	);
2208	cb => sub {	2945	BDB::min_parallel 8;
2209	(Coro::unblock_sub {	2946
2210	write_runtime	2947	BDB::set_sync_prepare {
2211	or warn "ERROR: unable to write runtime file: $!";	2948	my $status;
		2949	my $current = $Coro::current;
		2950	(
		2951	sub {
		2952	$status = $!;
		2953	$current->ready; undef $current;
		2954	},
		2955	sub {
		2956	Coro::schedule while defined $current;
		2957	$! = $status;
		2958	},
		2959	)
		2960	};
		2961
		2962	unless ($DB_ENV) {
		2963	$DB_ENV = BDB::db_env_create;
		2964
		2965	cf::sync_job {
		2966	eval {
		2967	BDB::db_env_open
		2968	$DB_ENV,
		2969	$BDBDIR,
		2970	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2971	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2972	0666;
		2973
		2974	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2975
		2976	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2977	$DB_ENV->set_lk_detect;
		2978	};
		2979
		2980	cf::cleanup "db_env_open(db): $@" if $@;
2212	})->();	2981	};
2213	},	2982	}
2214	);	2983	}
		2984
		2985	{
		2986	IO::AIO::min_parallel 8;
		2987
		2988	undef $Coro::AIO::WATCHER;
		2989	IO::AIO::max_poll_time $TICK * 0.1;
		2990	$AIO_POLL_WATCHER = Event->io (
		2991	reentrant => 0,
		2992	data => WF_AUTOCANCEL,
		2993	fd => IO::AIO::poll_fileno,
		2994	poll => 'r',
		2995	prio => 6,
		2996	cb => \&IO::AIO::poll_cb,
		2997	);
		2998	}
		2999
		3000	my $_log_backtrace;
		3001
		3002	sub _log_backtrace {
		3003	my ($msg, @addr) = @_;
		3004
		3005	$msg =~ s/\n//;
		3006
		3007	# limit the # of concurrent backtraces
		3008	if ($_log_backtrace < 2) {
		3009	++$_log_backtrace;
		3010	async {
		3011	my @bt = fork_call {
		3012	@addr = map { sprintf "%x", $_ } @addr;
		3013	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3014	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3015	or die "addr2line: $!";
		3016
		3017	my @funcs;
		3018	my @res = <$fh>;
		3019	chomp for @res;
		3020	while (@res) {
		3021	my ($func, $line) = splice @res, 0, 2, ();
		3022	push @funcs, "[$func] $line";
		3023	}
		3024
		3025	@funcs
		3026	};
		3027
		3028	LOG llevInfo, "[ABT] $msg\n";
		3029	LOG llevInfo, "[ABT] $_\n" for @bt;
		3030	--$_log_backtrace;
		3031	};
		3032	} else {
		3033	LOG llevInfo, "[ABT] $msg\n";
		3034	LOG llevInfo, "[ABT] [suppressed]\n";
		3035	}
		3036	}
		3037
		3038	# load additional modules
		3039	use cf::pod;
2215		3040
2216	END { cf::emergency_save }	3041	END { cf::emergency_save }
2217		3042
2218	1	3043	1
2219		3044

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