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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.147 by root, Mon Jan 8 12:23:33 2007 UTC vs.
Revision 1.279 by root, Mon Jun 11 22:16:53 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;
		29	use YAML::Syck ();
22	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
23	use YAML::Syck ();
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
52	our %PLAYER; # all users	88	our %PLAYER; # all users
53	our %MAP; # all maps	89	our %MAP; # all maps
54	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	91
56	our %EXT_CORO; # coroutines bound to extensions	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
77		115
78	#############################################################################	116	#############################################################################
79		117
80	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
81		119
…		…
88	=item $cf::RUNTIME	126	=item $cf::RUNTIME
89		127
90	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
91	every server tick.	129	every server tick.
92		130
93	=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
94		134
95	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		139
98	=item $cf::NOW	140	=item $cf::NOW
99		141
100	The time of the last (current) server tick.	142	The time of the last (current) server tick.
101		143
102	=item $cf::TICK	144	=item $cf::TICK
103		145
104	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.
105		157
106	=item %cf::CFG	158	=item %cf::CFG
107		159
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	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.
110		168
111	=back	169	=back
112		170
113	=cut	171	=cut
114		172
115	BEGIN {	173	BEGIN {
116	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	175	my $msg = join "", @_;
118	utf8::encode $msg;
119		176
120	$msg .= "\n"	177	$msg .= "\n"
121	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
122		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
123	LOG llevError, $msg;	183	LOG llevError, $msg;
124	};	184	};
125	}	185	}
126		186
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@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';
132	@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)
133		194
134	# 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
135	# within the Safe compartment.	196	# within the Safe compartment.
136	for my $pkg (qw(	197	for my $pkg (qw(
137	cf::global cf::attachable	198	cf::global cf::attachable
…		…
146		207
147	$Event::DIED = sub {	208	$Event::DIED = sub {
148	warn "error in event callback: @_";	209	warn "error in event callback: @_";
149	};	210	};
150		211
151	my %ext_pkg;
152	my @exts;
153	my @hook;
154
155	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
156		213
157	=over 4	214	=over 4
158		215
159	=cut	216	=item dumpval $ref
160		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
161	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
162		240
163	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
164		242
165	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
166		244
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
175		246
176	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
177
178	=cut
179
180	sub to_json($) {
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		248
185	=item cf::lock_wait $string	249	=item cf::lock_wait $string
186		250
187	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
188		252
…		…
194	returned.	258	returned.
195		259
196	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
197	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
198		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
199	=cut	267	=cut
200		268
201	our %LOCK;	269	our %LOCK;
202		270
203	sub lock_wait($) {	271	sub lock_wait($) {
…		…
222	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
224	}	292	}
225	}	293	}
226		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
227	sub freeze_mainloop {	301	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
229		303
230	my $guard = Coro::guard { $TICK_WATCHER->start };	304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
231	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
232	$guard	308	$guard
233	}	309	}
234		310
235	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
257		333
258	sub sync_job(&) {	334	sub sync_job(&) {
259	my ($job) = @_;	335	my ($job) = @_;
260		336
261	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
262	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
264		342
265	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
266	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
277		355
278	while ($busy) {	356	while ($busy) {
279	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
280	}	358	}
281		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
282	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
283	} else {	368	} else {
284	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
285		370
286	$job->()	371	$job->()
287	}	372	}
288	}	373	}
289		374
290	=item $coro = cf::async_ext { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
291		376
292	Like async, but this coro is automcatially being canceled when the	377	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	378	extension calling this is being unloaded.
294		379
295	=cut	380	=cut
296		381
297	sub async_ext(&) {	382	sub async_ext(&) {
…		…
306		391
307	$coro	392	$coro
308	}	393	}
309		394
310	sub write_runtime {	395	sub write_runtime {
311	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";
312		404
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
314	or return;	406	or return;
315		407
		408	my $value = $cf::RUNTIME + 90 + 10;
316	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
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;	413	and return;
319		414
		415	# always fsync - this file is important
320	aio_fsync $fh	416	aio_fsync $fh
321	and return;	417	and return;
322		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
323	close $fh	422	close $fh
324	or return;	423	or return;
325		424
326	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
327	and return;	426	and return;
328		427
		428	warn "runtime file written.\n";
		429
329	1	430	1
330	}	431	}
331		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
332	=back	444	=back
333		445
334	=cut	446	=cut
335
336	#############################################################################
337
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455		447
456	#############################################################################	448	#############################################################################
457		449
458	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
459		451
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	578	our @CB_MAP = ();
587		579
588	my %attachment;	580	my %attachment;
589		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
590	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
592		590
593	use sort 'stable';	591	use sort 'stable';
594		592
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
629		627
630	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		632
635	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	634	my $pkg = shift @arg;
637		635
638	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
679	if (ref $_[0]) {	677	if (ref $_[0]) {
680	_object_attach @_;	678	_object_attach @_;
681	} else {	679	} else {
682	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
683	}	681	}
		682	_recalc_want;
684	};	683	};
685		684
686	# all those should be optimised	685	# all those should be optimised
687	sub cf::attachable::detach {	686	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
692	reattach ($obj);	691	reattach ($obj);
693	} else {	692	} else {
694	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
695	}	694	}
		695	_recalc_want;
696	};	696	};
697		697
698	sub cf::attachable::attached {	698	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
700		700
…		…
765	# object support	765	# object support
766		766
767	sub reattach {	767	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		772
771	my $registry = $obj->registry;	773	my $registry = $obj->registry;
772		774
773	@$registry = ();	775	@$registry = ();
774		776
…		…
821	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
822		824
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	829	close $fh;
828		830
829	if (@$objs) {	831	if (@$objs) {
830	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) {
831	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	837	close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
837	}	839	}
838	} else {	840	} else {
839	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
871	or return;	873	or return;
872	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
873	}	875	}
874		876
875	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
877	return ($data, $av);	879	return ($data, $av);
878	}	880	}
879		881
880	#############################################################################	882	#############################################################################
881	# command handling &c	883	# command handling &c
…		…
906	=cut	908	=cut
907		909
908	sub register_extcmd {	910	sub register_extcmd {
909	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
910		912
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
915	}	914	}
916		915
917	cf::player->attach (	916	cf::player->attach (
918	on_command => sub {	917	on_command => sub {
919	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
932		931
933	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
934		933
935	if (ref $msg) {	934	if (ref $msg) {
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
938	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
939	}	938	}
940	}	939	}
941	} else {	940	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
944		943
945	cf::override;	944	cf::override;
946	},	945	},
947	);	946	);
948		947
949	sub register {
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {
956	my ($path) = @_;
957
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
959	my $base = $1;
960	my $pkg = $1;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}
1008	}
1009
1010	# remove extcmds
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}
1024
1025	sub load_extensions {	948	sub load_extensions {
		949	cf::sync_job {
		950	my %todo;
		951
1026	for my $ext (<$LIBDIR/*.ext>) {	952	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	953	next unless -r $path;
1028	eval {	954
1029	load_extension $ext;	955	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		956	my $base = $1;
		957	my $pkg = $1;
		958	$pkg =~ s/[^[:word:]]/_/g;
		959	$pkg = "ext::$pkg";
		960
		961	open my $fh, "<:utf8", $path
		962	or die "$path: $!";
		963
		964	my $source = do { local $/; <$fh> };
		965
		966	my %ext = (
		967	path => $path,
		968	base => $base,
		969	pkg => $pkg,
		970	);
		971
		972	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		973	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		974
		975	$ext{source} =
		976	"package $pkg; use strict; use utf8;\n"
		977	. "#line 1 \"$path\"\n{\n"
		978	. $source
		979	. "\n};\n1";
		980
		981	$todo{$base} = \%ext;
		982	}
		983
		984	my %done;
		985	while (%todo) {
		986	my $progress;
		987
		988	while (my ($k, $v) = each %todo) {
		989	for (split /,\s*/, $v->{meta}{depends}) {
		990	goto skip
		991	unless exists $done{$_};
		992	}
		993
		994	warn "... loading '$k' into '$v->{pkg}'\n";
		995
		996	unless (eval $v->{source}) {
		997	my $msg = $@ ? "$v->{path}: $@\n"
		998	: "$v->{base}: extension inactive.\n";
		999
		1000	if (exists $v->{meta}{mandatory}) {
		1001	warn $msg;
		1002	warn "mandatory extension failed to load, exiting.\n";
		1003	exit 1;
		1004	}
		1005
		1006	warn $msg;
		1007	}
		1008
		1009	$done{$k} = delete $todo{$k};
		1010	push @EXTS, $v->{pkg};
		1011	$progress = 1;
1030	1	1012	}
1031	} or warn "$ext not loaded: $@";	1013
		1014	skip:
		1015	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1016	unless $progress;
		1017	}
1032	}	1018	};
1033	}	1019	}
1034		1020
1035	#############################################################################	1021	#############################################################################
1036	# load/save/clean perl data associated with a map
1037
1038	*cf::mapsupport::on_clean = sub {
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1022
1073	=head2 CORE EXTENSIONS	1023	=head2 CORE EXTENSIONS
1074		1024
1075	Functions and methods that extend core crossfire objects.	1025	Functions and methods that extend core crossfire objects.
1076		1026
1077	=cut	1027	=cut
1078		1028
1079	package cf::player;	1029	package cf::player;
1080		1030
		1031	use Coro::AIO;
		1032
1081	=head3 cf::player	1033	=head3 cf::player
1082		1034
1083	=over 4	1035	=over 4
1084		1036
1085	=item cf::player::find $login	1037	=item cf::player::find $login
…		…
1087	Returns the given player object, loading it if necessary (might block).	1039	Returns the given player object, loading it if necessary (might block).
1088		1040
1089	=cut	1041	=cut
1090		1042
1091	sub playerdir($) {	1043	sub playerdir($) {
1092	cf::localdir	1044	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1045	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1046	}
1098		1047
1099	sub path($) {	1048	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1049	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1050
1102	(playerdir $login) . "/$login.pl"	1051	(playerdir $login) . "/playerdata"
1103	}	1052	}
1104		1053
1105	sub find_active($) {	1054	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1055	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1056	and $cf::PLAYER{$_[0]}->active
…		…
1110		1059
1111	sub exists($) {	1060	sub exists($) {
1112	my ($login) = @_;	1061	my ($login) = @_;
1113		1062
1114	$cf::PLAYER{$login}	1063	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1064	or cf::sync_job { !aio_stat path $login }
1116	}	1065	}
1117		1066
1118	sub find($) {	1067	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1068	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1069	my $login = $_[0];
1121		1070
1122	my $guard = cf::lock_acquire "user_find:$login";	1071	my $guard = cf::lock_acquire "user_find:$login";
1123		1072
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1073	$cf::PLAYER{$_[0]} || do {
		1074	# rename old playerfiles to new ones
		1075	#TODO: remove when no longer required
		1076	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1077	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1078	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1079	aio_unlink +(playerdir $login) . "/$login.pl";
		1080
		1081	my $pl = load_pl path $login
		1082	or return;
		1083	$cf::PLAYER{$login} = $pl
		1084	}
1125	};	1085	}
1126	}	1086	}
1127		1087
1128	sub save($) {	1088	sub save($) {
1129	my ($pl) = @_;	1089	my ($pl) = @_;
1130		1090
…		…
1133	my $path = path $pl;	1093	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1094	my $guard = cf::lock_acquire "user_save:$path";
1135		1095
1136	return if $pl->{deny_save};	1096	return if $pl->{deny_save};
1137		1097
1138	IO::AIO::aio_mkdir playerdir $pl, 0770;	1098	aio_mkdir playerdir $pl, 0770;
1139	$pl->{last_save} = $cf::RUNTIME;	1099	$pl->{last_save} = $cf::RUNTIME;
1140		1100
1141	Coro::cede;
1142	$pl->save_pl ($path);	1101	$pl->save_pl ($path);
1143	Coro::cede;	1102	Coro::cede;
1144	}	1103	}
1145		1104
1146	sub new($) {	1105	sub new($) {
…		…
1154	$cf::PLAYER{$login} = $self;	1113	$cf::PLAYER{$login} = $self;
1155		1114
1156	$self	1115	$self
1157	}	1116	}
1158		1117
		1118	=item $pl->quit_character
		1119
		1120	Nukes the player without looking back. If logged in, the connection will
		1121	be destroyed. May block for a long time.
		1122
		1123	=cut
		1124
1159	sub quit_character {	1125	sub quit_character {
1160	my ($pl) = @_;	1126	my ($pl) = @_;
		1127
		1128	my $name = $pl->ob->name;
1161		1129
1162	$pl->{deny_save} = 1;	1130	$pl->{deny_save} = 1;
1163	$pl->password ("*"); # this should lock out the player until we nuked the dir	1131	$pl->password ("*"); # this should lock out the player until we nuked the dir
1164		1132
1165	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1133	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1167	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1135	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1168	$pl->ns->destroy if $pl->ns;	1136	$pl->ns->destroy if $pl->ns;
1169		1137
1170	my $path = playerdir $pl;	1138	my $path = playerdir $pl;
1171	my $temp = "$path~$cf::RUNTIME~deleting~";	1139	my $temp = "$path~$cf::RUNTIME~deleting~";
1172	IO::AIO::aio_rename $path, $temp, sub {	1140	aio_rename $path, $temp;
1173	delete $cf::PLAYER{$pl->ob->name};	1141	delete $cf::PLAYER{$pl->ob->name};
1174	$pl->destroy;	1142	$pl->destroy;
1175		1143
		1144	my $prefix = qr<^~\Q$name\E/>;
		1145
		1146	# nuke player maps
		1147	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1148
1176	IO::AIO::aio_rmtree $temp;	1149	IO::AIO::aio_rmtree $temp;
		1150	}
		1151
		1152	=item $pl->kick
		1153
		1154	Kicks a player out of the game. This destroys the connection.
		1155
		1156	=cut
		1157
		1158	sub kick {
		1159	my ($pl, $kicker) = @_;
		1160
		1161	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1162	$pl->killer ("kicked");
		1163	$pl->ns->destroy;
		1164	}
		1165
		1166	=item cf::player::list_logins
		1167
		1168	Returns am arrayref of all valid playernames in the system, can take a
		1169	while and may block, so not sync_job-capable, ever.
		1170
		1171	=cut
		1172
		1173	sub list_logins {
		1174	my $dirs = aio_readdir $PLAYERDIR
		1175	or return [];
		1176
		1177	my @logins;
		1178
		1179	for my $login (@$dirs) {
		1180	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1181	aio_read $fh, 0, 512, my $buf, 0 or next;
		1182	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1183
		1184	utf8::decode $login;
		1185	push @logins, $login;
1177	};	1186	}
1178	}
1179		1187
		1188	\@logins
		1189	}
		1190
		1191	=item $player->maps
		1192
		1193	Returns an arrayref of map paths that are private for this
		1194	player. May block.
		1195
		1196	=cut
		1197
		1198	sub maps($) {
		1199	my ($pl) = @_;
		1200
		1201	$pl = ref $pl ? $pl->ob->name : $pl;
		1202
		1203	my $files = aio_readdir playerdir $pl
		1204	or return;
		1205
		1206	my @paths;
		1207
		1208	for (@$files) {
		1209	utf8::decode $_;
		1210	next if /\.(?:pl|pst)$/;
		1211	next unless /^$PATH_SEP/o;
		1212
		1213	push @paths, cf::map::normalise "~$pl/$_";
		1214	}
		1215
		1216	\@paths
		1217	}
		1218
1180	=item $player->ext_reply ($msgid, $msgtype, %msg)	1219	=item $player->ext_reply ($msgid, %msg)
1181		1220
1182	Sends an ext reply to the player.	1221	Sends an ext reply to the player.
1183		1222
1184	=cut	1223	=cut
1185		1224
1186	sub ext_reply($$$%) {	1225	sub ext_reply($$%) {
1187	my ($self, $id, %msg) = @_;	1226	my ($self, $id, %msg) = @_;
1188		1227
1189	$msg{msgid} = $id;	1228	$msg{msgid} = $id;
1190		1229
1191	$self->send ("ext " . cf::to_json \%msg);	1230	$self->send ("ext " . cf::to_json \%msg);
1192	}	1231	}
1193		1232
1194	package cf;	1233	=item $player->ext_event ($type, %msg)
		1234
		1235	Sends an ext event to the client.
		1236
		1237	=cut
		1238
		1239	sub ext_event($$%) {
		1240	my ($self, $type, %msg) = @_;
		1241
		1242	$self->ns->ext_event ($type, %msg);
		1243	}
		1244
		1245	=head3 cf::region
		1246
		1247	=over 4
		1248
		1249	=cut
		1250
		1251	package cf::region;
		1252
		1253	=item cf::region::find_by_path $path
		1254
		1255	Tries to decuce the probable region for a map knowing only its path.
		1256
		1257	=cut
		1258
		1259	sub find_by_path($) {
		1260	my ($path) = @_;
		1261
		1262	my ($match, $specificity);
		1263
		1264	for my $region (list) {
		1265	if ($region->match && $path =~ $region->match) {
		1266	($match, $specificity) = ($region, $region->specificity)
		1267	if $region->specificity > $specificity;
		1268	}
		1269	}
		1270
		1271	$match
		1272	}
1195		1273
1196	=back	1274	=back
1197
1198		1275
1199	=head3 cf::map	1276	=head3 cf::map
1200		1277
1201	=over 4	1278	=over 4
1202		1279
…		…
1205	package cf::map;	1282	package cf::map;
1206		1283
1207	use Fcntl;	1284	use Fcntl;
1208	use Coro::AIO;	1285	use Coro::AIO;
1209		1286
		1287	use overload
		1288	'""' => \&as_string,
		1289	fallback => 1;
		1290
1210	our $MAX_RESET = 3600;	1291	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1292	our $DEFAULT_RESET = 3000;
1212		1293
1213	sub generate_random_map {	1294	sub generate_random_map {
1214	my ($path, $rmp) = @_;	1295	my ($self, $rmp) = @_;
1215
1216	# mit "rum" bekleckern, nicht	1296	# mit "rum" bekleckern, nicht
1217	cf::map::_create_random_map	1297	$self->_create_random_map (
1218	$path,
1219	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1298	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1220	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1299	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1221	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1300	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1222	$rmp->{exit_on_final_map},	1301	$rmp->{exit_on_final_map},
1223	$rmp->{xsize}, $rmp->{ysize},	1302	$rmp->{xsize}, $rmp->{ysize},
1224	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1303	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1225	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1304	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1226	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1305	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1227	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1306	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1228	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1307	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1229	(cf::region::find $rmp->{region})	1308	(cf::region::find $rmp->{region}), $rmp->{custom}
		1309	)
		1310	}
		1311
		1312	=item cf::map->register ($regex, $prio)
		1313
		1314	Register a handler for the map path matching the given regex at the
		1315	givne priority (higher is better, built-in handlers have priority 0, the
		1316	default).
		1317
		1318	=cut
		1319
		1320	sub register {
		1321	my (undef, $regex, $prio) = @_;
		1322	my $pkg = caller;
		1323
		1324	no strict;
		1325	push @{"$pkg\::ISA"}, __PACKAGE__;
		1326
		1327	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1328	}
		1329
		1330	# also paths starting with '/'
		1331	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1332
		1333	sub thawer_merge {
		1334	my ($self, $merge) = @_;
		1335
		1336	# we have to keep some variables in memory intact
		1337	local $self->{path};
		1338	local $self->{load_path};
		1339
		1340	$self->SUPER::thawer_merge ($merge);
		1341	}
		1342
		1343	sub normalise {
		1344	my ($path, $base) = @_;
		1345
		1346	$path = "$path"; # make sure its a string
		1347
		1348	$path =~ s/\.map$//;
		1349
		1350	# map plan:
		1351	#
		1352	# /! non-realised random map exit (special hack!)
		1353	# {... are special paths that are not being touched
		1354	# ?xxx/... are special absolute paths
		1355	# ?random/... random maps
		1356	# /... normal maps
		1357	# ~user/... per-player map of a specific user
		1358
		1359	$path =~ s/$PATH_SEP/\//go;
		1360
		1361	# treat it as relative path if it starts with
		1362	# something that looks reasonable
		1363	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1364	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1365
		1366	$base =~ s{[^/]+/?$}{};
		1367	$path = "$base/$path";
		1368	}
		1369
		1370	for ($path) {
		1371	redo if s{//}{/};
		1372	redo if s{/\.?/}{/};
		1373	redo if s{/[^/]+/\.\./}{/};
		1374	}
		1375
		1376	$path
		1377	}
		1378
		1379	sub new_from_path {
		1380	my (undef, $path, $base) = @_;
		1381
		1382	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1383
		1384	$path = normalise $path, $base;
		1385
		1386	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1387	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1388	my $self = bless cf::map::new, $pkg;
		1389	$self->{path} = $path; $self->path ($path);
		1390	$self->init; # pass $1 etc.
		1391	return $self;
		1392	}
		1393	}
		1394
		1395	Carp::carp "unable to resolve path '$path' (base '$base').";
		1396	()
		1397	}
		1398
		1399	sub init {
		1400	my ($self) = @_;
		1401
		1402	$self
		1403	}
		1404
		1405	sub as_string {
		1406	my ($self) = @_;
		1407
		1408	"$self->{path}"
		1409	}
		1410
		1411	# the displayed name, this is a one way mapping
		1412	sub visible_name {
		1413	&as_string
		1414	}
		1415
		1416	# the original (read-only) location
		1417	sub load_path {
		1418	my ($self) = @_;
		1419
		1420	"$MAPDIR/$self->{path}.map"
		1421	}
		1422
		1423	# the temporary/swap location
		1424	sub save_path {
		1425	my ($self) = @_;
		1426
		1427	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1428	"$TMPDIR/$path.map"
		1429	}
		1430
		1431	# the unique path, undef == no special unique path
		1432	sub uniq_path {
		1433	my ($self) = @_;
		1434
		1435	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1436	"$UNIQUEDIR/$path"
1230	}	1437	}
1231		1438
1232	# and all this just because we cannot iterate over	1439	# and all this just because we cannot iterate over
1233	# all maps in C++...	1440	# all maps in C++...
1234	sub change_all_map_light {	1441	sub change_all_map_light {
…		…
1236		1443
1237	$_->change_map_light ($change)	1444	$_->change_map_light ($change)
1238	for grep $_->outdoor, values %cf::MAP;	1445	for grep $_->outdoor, values %cf::MAP;
1239	}	1446	}
1240		1447
		1448	sub decay_objects {
		1449	my ($self) = @_;
		1450
		1451	return if $self->{deny_reset};
		1452
		1453	$self->do_decay_objects;
		1454	}
		1455
		1456	sub unlink_save {
		1457	my ($self) = @_;
		1458
		1459	utf8::encode (my $save = $self->save_path);
		1460	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1461	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1462	}
		1463
1241	sub try_load_header($) {	1464	sub load_header_from($) {
1242	my ($path) = @_;	1465	my ($self, $path) = @_;
1243		1466
1244	utf8::encode $path;	1467	utf8::encode $path;
1245	aio_open $path, O_RDONLY, 0	1468	#aio_open $path, O_RDONLY, 0
		1469	# or return;
		1470
		1471	$self->_load_header ($path)
1246	or return;	1472	or return;
1247		1473
1248	my $map = cf::map::new	1474	$self->{load_path} = $path;
		1475
		1476	1
		1477	}
		1478
		1479	sub load_header_orig {
		1480	my ($self) = @_;
		1481
		1482	$self->load_header_from ($self->load_path)
		1483	}
		1484
		1485	sub load_header_temp {
		1486	my ($self) = @_;
		1487
		1488	$self->load_header_from ($self->save_path)
		1489	}
		1490
		1491	sub prepare_temp {
		1492	my ($self) = @_;
		1493
		1494	$self->last_access ((delete $self->{last_access})
		1495	|| $cf::RUNTIME); #d#
		1496	# safety
		1497	$self->{instantiate_time} = $cf::RUNTIME
		1498	if $self->{instantiate_time} > $cf::RUNTIME;
		1499	}
		1500
		1501	sub prepare_orig {
		1502	my ($self) = @_;
		1503
		1504	$self->{load_original} = 1;
		1505	$self->{instantiate_time} = $cf::RUNTIME;
		1506	$self->last_access ($cf::RUNTIME);
		1507	$self->instantiate;
		1508	}
		1509
		1510	sub load_header {
		1511	my ($self) = @_;
		1512
		1513	if ($self->load_header_temp) {
		1514	$self->prepare_temp;
		1515	} else {
		1516	$self->load_header_orig
1249	or return;	1517	or return;
		1518	$self->prepare_orig;
		1519	}
1250		1520
1251	# for better error messages only, will be overwritten	1521	$self->{deny_reset} = 1
1252	$map->path ($path);	1522	if $self->no_reset;
1253		1523
1254	$map->load_header ($path)	1524	$self->default_region (cf::region::find_by_path $self->{path})
1255	or return;	1525	unless $self->default_region;
1256		1526
1257	$map->{load_path} = $path;	1527	1
1258
1259	$map
1260	}	1528	}
1261		1529
1262	sub find;	1530	sub find;
1263	sub find {	1531	sub find {
1264	my ($path, $origin) = @_;	1532	my ($path, $origin) = @_;
1265		1533
1266	#warn "find<$path,$origin>\n";#d#
1267
1268	$path = new cf::path $path, $origin && $origin->path;	1534	$path = normalise $path, $origin && $origin->path;
1269	my $key = $path->as_string;
1270		1535
1271	cf::lock_wait "map_find:$key";	1536	cf::lock_wait "map_find:$path";
1272		1537
1273	$cf::MAP{$key} || do {	1538	$cf::MAP{$path} || do {
1274	my $guard = cf::lock_acquire "map_find:$key";	1539	my $guard = cf::lock_acquire "map_find:$path";
1275		1540	my $map = new_from_path cf::map $path
1276	# do it the slow way
1277	my $map = try_load_header $path->save_path;
1278
1279	Coro::cede;
1280
1281	if ($map) {
1282	$map->last_access ((delete $map->{last_access})
1283	|| $cf::RUNTIME); #d#
1284	# safety
1285	$map->{instantiate_time} = $cf::RUNTIME
1286	if $map->{instantiate_time} > $cf::RUNTIME;
1287	} else {
1288	if (my $rmp = $path->random_map_params) {
1289	$map = generate_random_map $key, $rmp;
1290	} else {
1291	$map = try_load_header $path->load_path;
1292	}
1293
1294	$map or return;	1541	or return;
1295		1542
1296	$map->{load_original} = 1;
1297	$map->{instantiate_time} = $cf::RUNTIME;
1298	$map->last_access ($cf::RUNTIME);
1299	$map->instantiate;
1300
1301	# per-player maps become, after loading, normal maps
1302	$map->per_player (0) if $path->{user_rel};
1303	}
1304
1305	$map->path ($key);
1306	$map->{path} = $path;
1307	$map->{last_save} = $cf::RUNTIME;	1543	$map->{last_save} = $cf::RUNTIME;
1308		1544
1309	Coro::cede;	1545	$map->load_header
		1546	or return;
1310		1547
1311	if ($map->should_reset) {	1548	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1549	# doing this can freeze the server in a sync job, obviously
		1550	#$cf::WAIT_FOR_TICK->wait;
1312	$map->reset;	1551	$map->reset;
1313	undef $guard;	1552	undef $guard;
1314	$map = find $path	1553	return find $path;
1315	or return;
1316	}	1554	}
1317		1555
1318	$cf::MAP{$key} = $map	1556	$cf::MAP{$path} = $map
1319	}	1557	}
1320	}	1558	}
		1559
		1560	sub pre_load { }
		1561	sub post_load { }
1321		1562
1322	sub load {	1563	sub load {
1323	my ($self) = @_;	1564	my ($self) = @_;
1324		1565
		1566	local $self->{deny_reset} = 1; # loading can take a long time
		1567
1325	my $path = $self->{path};	1568	my $path = $self->{path};
		1569
		1570	{
1326	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1571	my $guard = cf::lock_acquire "map_load:$path";
1327		1572
1328	return if $self->in_memory != cf::MAP_SWAPPED;	1573	return if $self->in_memory != cf::MAP_SWAPPED;
1329		1574
1330	$self->in_memory (cf::MAP_LOADING);	1575	$self->in_memory (cf::MAP_LOADING);
1331		1576
1332	$self->alloc;	1577	$self->alloc;
		1578
		1579	$self->pre_load;
		1580	Coro::cede;
		1581
1333	$self->load_objects ($self->{load_path}, 1)	1582	$self->_load_objects ($self->{load_path}, 1)
1334	or return;	1583	or return;
1335		1584
1336	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1585	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1337	if delete $self->{load_original};	1586	if delete $self->{load_original};
1338		1587
1339	if (my $uniq = $path->uniq_path) {	1588	if (my $uniq = $self->uniq_path) {
1340	utf8::encode $uniq;	1589	utf8::encode $uniq;
1341	if (aio_open $uniq, O_RDONLY, 0) {	1590	if (aio_open $uniq, O_RDONLY, 0) {
1342	$self->clear_unique_items;	1591	$self->clear_unique_items;
1343	$self->load_objects ($uniq, 0);	1592	$self->_load_objects ($uniq, 0);
1344	}	1593	}
1345	}	1594	}
1346		1595
1347	Coro::cede;	1596	Coro::cede;
1348
1349	# now do the right thing for maps	1597	# now do the right thing for maps
1350	$self->link_multipart_objects;	1598	$self->link_multipart_objects;
1351
1352	if ($self->{path}->is_style_map) {
1353	$self->{deny_save} = 1;
1354	$self->{deny_reset} = 1;
1355	} else {
1356	$self->fix_auto_apply;
1357	$self->decay_objects;
1358	$self->update_buttons;
1359	$self->set_darkness_map;
1360	$self->difficulty ($self->estimate_difficulty)	1599	$self->difficulty ($self->estimate_difficulty)
1361	unless $self->difficulty;	1600	unless $self->difficulty;
		1601	Coro::cede;
		1602
		1603	unless ($self->{deny_activate}) {
		1604	$self->decay_objects;
		1605	$self->fix_auto_apply;
		1606	$self->update_buttons;
		1607	Coro::cede;
		1608	$self->set_darkness_map;
		1609	Coro::cede;
1362	$self->activate;	1610	$self->activate;
1363	}	1611	}
1364		1612
1365	Coro::cede;
1366
1367	$self->in_memory (cf::MAP_IN_MEMORY);	1613	$self->in_memory (cf::MAP_IN_MEMORY);
		1614	}
		1615
		1616	$self->post_load;
		1617	}
		1618
		1619	sub customise_for {
		1620	my ($self, $ob) = @_;
		1621
		1622	return find "~" . $ob->name . "/" . $self->{path}
		1623	if $self->per_player;
		1624
		1625	# return find "?party/" . $ob->name . "/" . $self->{path}
		1626	# if $self->per_party;
		1627
		1628	$self
		1629	}
		1630
		1631	# find and load all maps in the 3x3 area around a map
		1632	sub load_diag {
		1633	my ($map) = @_;
		1634
		1635	my @diag; # diagonal neighbours
		1636
		1637	for (0 .. 3) {
		1638	my $neigh = $map->tile_path ($_)
		1639	or next;
		1640	$neigh = find $neigh, $map
		1641	or next;
		1642	$neigh->load;
		1643
		1644	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1645	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1646	}
		1647
		1648	for (@diag) {
		1649	my $neigh = find @$_
		1650	or next;
		1651	$neigh->load;
		1652	}
1368	}	1653	}
1369		1654
1370	sub find_sync {	1655	sub find_sync {
1371	my ($path, $origin) = @_;	1656	my ($path, $origin) = @_;
1372		1657
1373	cf::sync_job { cf::map::find $path, $origin }	1658	cf::sync_job { find $path, $origin }
1374	}	1659	}
1375		1660
1376	sub do_load_sync {	1661	sub do_load_sync {
1377	my ($map) = @_;	1662	my ($map) = @_;
1378		1663
1379	cf::sync_job { $map->load };	1664	cf::sync_job { $map->load };
1380	}	1665	}
1381		1666
		1667	our %MAP_PREFETCH;
		1668	our $MAP_PREFETCHER = undef;
		1669
		1670	sub find_async {
		1671	my ($path, $origin) = @_;
		1672
		1673	$path = normalise $path, $origin && $origin->{path};
		1674
		1675	if (my $map = $cf::MAP{$path}) {
		1676	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1677	}
		1678
		1679	undef $MAP_PREFETCH{$path};
		1680	$MAP_PREFETCHER ||= cf::async {
		1681	while (%MAP_PREFETCH) {
		1682	for my $path (keys %MAP_PREFETCH) {
		1683	my $map = find $path
		1684	or next;
		1685	$map->load;
		1686
		1687	delete $MAP_PREFETCH{$path};
		1688	}
		1689	}
		1690	undef $MAP_PREFETCHER;
		1691	};
		1692	$MAP_PREFETCHER->prio (6);
		1693
		1694	()
		1695	}
		1696
1382	sub save {	1697	sub save {
1383	my ($self) = @_;	1698	my ($self) = @_;
1384		1699
1385	my $lock = cf::lock_acquire "map_data:" . $self->path;	1700	my $lock = cf::lock_acquire "map_data:" . $self->path;
1386		1701
1387	$self->{last_save} = $cf::RUNTIME;	1702	$self->{last_save} = $cf::RUNTIME;
1388		1703
1389	return unless $self->dirty;	1704	return unless $self->dirty;
1390		1705
1391	my $save = $self->{path}->save_path; utf8::encode $save;	1706	my $save = $self->save_path; utf8::encode $save;
1392	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1707	my $uniq = $self->uniq_path; utf8::encode $uniq;
1393		1708
1394	$self->{load_path} = $save;	1709	$self->{load_path} = $save;
1395		1710
1396	return if $self->{deny_save};	1711	return if $self->{deny_save};
1397		1712
…		…
1400	cf::async {	1715	cf::async {
1401	$_->contr->save for $self->players;	1716	$_->contr->save for $self->players;
1402	};	1717	};
1403		1718
1404	if ($uniq) {	1719	if ($uniq) {
1405	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1720	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1406	$self->save_objects ($uniq, cf::IO_UNIQUES);	1721	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1407	} else {	1722	} else {
1408	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1723	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1409	}	1724	}
1410	}	1725	}
1411		1726
1412	sub swap_out {	1727	sub swap_out {
1413	my ($self) = @_;	1728	my ($self) = @_;
…		…
1427		1742
1428	sub reset_at {	1743	sub reset_at {
1429	my ($self) = @_;	1744	my ($self) = @_;
1430		1745
1431	# TODO: safety, remove and allow resettable per-player maps	1746	# TODO: safety, remove and allow resettable per-player maps
1432	return 1e99 if $self->{path}{user_rel};
1433	return 1e99 if $self->{deny_reset};	1747	return 1e99 if $self->{deny_reset};
1434		1748
1435	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1749	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1436	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1750	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1437		1751
…		…
1442	my ($self) = @_;	1756	my ($self) = @_;
1443		1757
1444	$self->reset_at <= $cf::RUNTIME	1758	$self->reset_at <= $cf::RUNTIME
1445	}	1759	}
1446		1760
1447	sub unlink_save {
1448	my ($self) = @_;
1449
1450	utf8::encode (my $save = $self->{path}->save_path);
1451	aioreq_pri 3; IO::AIO::aio_unlink $save;
1452	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1453	}
1454
1455	sub rename {
1456	my ($self, $new_path) = @_;
1457
1458	$self->unlink_save;
1459
1460	delete $cf::MAP{$self->path};
1461	$self->{path} = new cf::path $new_path;
1462	$self->path ($self->{path}->as_string);
1463	$cf::MAP{$self->path} = $self;
1464
1465	$self->save;
1466	}
1467
1468	sub reset {	1761	sub reset {
1469	my ($self) = @_;	1762	my ($self) = @_;
1470		1763
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	1764	my $lock = cf::lock_acquire "map_data:$self->{path}";
1472		1765
1473	return if $self->players;	1766	return if $self->players;
1474	return if $self->{path}{user_rel};#d#
1475		1767
1476	warn "resetting map ", $self->path;#d#	1768	warn "resetting map ", $self->path;
		1769
		1770	$self->in_memory (cf::MAP_SWAPPED);
		1771
		1772	# need to save uniques path
		1773	unless ($self->{deny_save}) {
		1774	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1775
		1776	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1777	if $uniq;
		1778	}
1477		1779
1478	delete $cf::MAP{$self->path};	1780	delete $cf::MAP{$self->path};
		1781
		1782	$self->clear;
1479		1783
1480	$_->clear_links_to ($self) for values %cf::MAP;	1784	$_->clear_links_to ($self) for values %cf::MAP;
1481		1785
1482	$self->unlink_save;	1786	$self->unlink_save;
1483	$self->destroy;	1787	$self->destroy;
…		…
1486	my $nuke_counter = "aaaa";	1790	my $nuke_counter = "aaaa";
1487		1791
1488	sub nuke {	1792	sub nuke {
1489	my ($self) = @_;	1793	my ($self) = @_;
1490		1794
		1795	delete $cf::MAP{$self->path};
		1796
		1797	$self->unlink_save;
		1798
		1799	bless $self, "cf::map";
		1800	delete $self->{deny_reset};
1491	$self->{deny_save} = 1;	1801	$self->{deny_save} = 1;
1492	$self->reset_timeout (1);	1802	$self->reset_timeout (1);
1493	$self->rename ("{nuke}/" . ($nuke_counter++));	1803	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1804
		1805	$cf::MAP{$self->path} = $self;
		1806
1494	$self->reset; # polite request, might not happen	1807	$self->reset; # polite request, might not happen
1495	}	1808	}
1496		1809
1497	sub customise_for {	1810	=item $maps = cf::map::tmp_maps
1498	my ($map, $ob) = @_;
1499		1811
1500	if ($map->per_player) {	1812	Returns an arrayref with all map paths of currently instantiated and saved
1501	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1813	maps. May block.
		1814
		1815	=cut
		1816
		1817	sub tmp_maps() {
1502	}	1818	[
1503		1819	map {
1504	$map	1820	utf8::decode $_;
		1821	/\.map$/
		1822	? normalise $_
		1823	: ()
		1824	} @{ aio_readdir $TMPDIR or [] }
		1825	]
1505	}	1826	}
1506		1827
1507	sub emergency_save {	1828	=item $maps = cf::map::random_maps
1508	my $freeze_guard = cf::freeze_mainloop;
1509		1829
1510	warn "enter emergency perl save\n";	1830	Returns an arrayref with all map paths of currently instantiated and saved
		1831	random maps. May block.
1511		1832
1512	cf::sync_job {	1833	=cut
1513	warn "begin emergency player save\n";
1514	$_->save for values %cf::PLAYER;
1515	warn "end emergency player save\n";
1516		1834
1517	warn "begin emergency map save\n";	1835	sub random_maps() {
1518	$_->save for values %cf::MAP;	1836	[
1519	warn "end emergency map save\n";	1837	map {
1520	};	1838	utf8::decode $_;
		1839	/\.map$/
		1840	? normalise "?random/$_"
		1841	: ()
		1842	} @{ aio_readdir $RANDOMDIR or [] }
		1843	]
		1844	}
1521		1845
1522	warn "leave emergency perl save\n";	1846	=item cf::map::unique_maps
		1847
		1848	Returns an arrayref of paths of all shared maps that have
		1849	instantiated unique items. May block.
		1850
		1851	=cut
		1852
		1853	sub unique_maps() {
		1854	[
		1855	map {
		1856	utf8::decode $_;
		1857	/\.map$/
		1858	? normalise $_
		1859	: ()
		1860	} @{ aio_readdir $UNIQUEDIR or [] }
		1861	]
1523	}	1862	}
1524		1863
1525	package cf;	1864	package cf;
1526		1865
1527	=back	1866	=back
1528		1867
		1868	=head3 cf::object
		1869
		1870	=cut
		1871
		1872	package cf::object;
		1873
		1874	=over 4
		1875
		1876	=item $ob->inv_recursive
		1877
		1878	Returns the inventory of the object _and_ their inventories, recursively.
		1879
		1880	=cut
		1881
		1882	sub inv_recursive_;
		1883	sub inv_recursive_ {
		1884	map { $_, inv_recursive_ $_->inv } @_
		1885	}
		1886
		1887	sub inv_recursive {
		1888	inv_recursive_ inv $_[0]
		1889	}
		1890
		1891	package cf;
		1892
		1893	=back
1529		1894
1530	=head3 cf::object::player	1895	=head3 cf::object::player
1531		1896
1532	=over 4	1897	=over 4
1533		1898
…		…
1573		1938
1574	=item $player_object->enter_link	1939	=item $player_object->enter_link
1575		1940
1576	Freezes the player and moves him/her to a special map (C<{link}>).	1941	Freezes the player and moves him/her to a special map (C<{link}>).
1577		1942
1578	The player should be reaosnably safe there for short amounts of time. You	1943	The player should be reasonably safe there for short amounts of time. You
1579	I<MUST> call C<leave_link> as soon as possible, though.	1944	I<MUST> call C<leave_link> as soon as possible, though.
1580		1945
		1946	Will never block.
		1947
1581	=item $player_object->leave_link ($map, $x, $y)	1948	=item $player_object->leave_link ($map, $x, $y)
1582		1949
1583	Moves the player out of the specila link map onto the given map. If the	1950	Moves the player out of the special C<{link}> map onto the specified
1584	map is not valid (or omitted), the player will be moved back to the	1951	map. If the map is not valid (or omitted), the player will be moved back
1585	location he/she was before the call to C<enter_link>, or, if that fails,	1952	to the location he/she was before the call to C<enter_link>, or, if that
1586	to the emergency map position.	1953	fails, to the emergency map position.
1587		1954
1588	Might block.	1955	Might block.
1589		1956
1590	=cut	1957	=cut
		1958
		1959	sub link_map {
		1960	unless ($LINK_MAP) {
		1961	$LINK_MAP = cf::map::find "{link}"
		1962	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1963	$LINK_MAP->load;
		1964	}
		1965
		1966	$LINK_MAP
		1967	}
1591		1968
1592	sub cf::object::player::enter_link {	1969	sub cf::object::player::enter_link {
1593	my ($self) = @_;	1970	my ($self) = @_;
1594		1971
1595	$self->deactivate_recursive;	1972	$self->deactivate_recursive;
1596		1973
1597	return if $self->map == $LINK_MAP;	1974	return if UNIVERSAL::isa $self->map, "ext::map_link";
1598		1975
1599	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1976	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1600	if $self->map;	1977	if $self->map && $self->map->{path} ne "{link}";
1601		1978
1602	$self->enter_map ($LINK_MAP, 20, 20);	1979	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1603	}	1980	}
1604		1981
1605	sub cf::object::player::leave_link {	1982	sub cf::object::player::leave_link {
1606	my ($self, $map, $x, $y) = @_;	1983	my ($self, $map, $x, $y) = @_;
		1984
		1985	return unless $self->contr->active;
1607		1986
1608	my $link_pos = delete $self->{_link_pos};	1987	my $link_pos = delete $self->{_link_pos};
1609		1988
1610	unless ($map) {	1989	unless ($map) {
1611	# restore original map position	1990	# restore original map position
…		…
1625	# use -1 or undef as default coordinates, not 0, 0	2004	# use -1 or undef as default coordinates, not 0, 0
1626	($x, $y) = ($map->enter_x, $map->enter_y)	2005	($x, $y) = ($map->enter_x, $map->enter_y)
1627	if $x <=0 && $y <= 0;	2006	if $x <=0 && $y <= 0;
1628		2007
1629	$map->load;	2008	$map->load;
		2009	$map->load_diag;
1630		2010
1631	return unless $self->contr->active;	2011	return unless $self->contr->active;
1632	$self->activate_recursive;	2012	$self->activate_recursive;
		2013
		2014	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1633	$self->enter_map ($map, $x, $y);	2015	$self->enter_map ($map, $x, $y);
1634	}	2016	}
1635		2017
1636	cf::player->attach (
1637	on_logout => sub {
1638	my ($pl) = @_;
1639
1640	# abort map switching before logout
1641	if ($pl->ob->{_link_pos}) {
1642	cf::sync_job {
1643	$pl->ob->leave_link
1644	};
1645	}
1646	},
1647	on_login => sub {
1648	my ($pl) = @_;
1649
1650	# try to abort aborted map switching on player login :)
1651	# should happen only on crashes
1652	if ($pl->ob->{_link_pos}) {
1653	$pl->ob->enter_link;
1654	(async {
1655	# we need this sleep as the login has a concurrent enter_exit running
1656	# and this sleep increases chances of the player not ending up in scorn
1657	$pl->ob->reply (undef,
1658	"There was an internal problem at your last logout, "
1659	. "the server will try to bring you to your intended destination in a second.",
1660	cf::NDI_RED);
1661	Coro::Timer::sleep 1;
1662	$pl->ob->leave_link;
1663	})->prio (2);
1664	}
1665	},
1666	);
1667
1668	=item $player_object->goto ($path, $x, $y)	2018	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1669		2019
		2020	Moves the player to the given map-path and coordinates by first freezing
		2021	her, loading and preparing them map, calling the provided $check callback
		2022	that has to return the map if sucecssful, and then unfreezes the player on
		2023	the new (success) or old (failed) map position.
		2024
1670	=cut	2025	=cut
		2026
		2027	our $GOTOGEN;
1671		2028
1672	sub cf::object::player::goto {	2029	sub cf::object::player::goto {
1673	my ($self, $path, $x, $y) = @_;	2030	my ($self, $path, $x, $y, $check) = @_;
		2031
		2032	# do generation counting so two concurrent goto's will be executed in-order
		2033	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1674		2034
1675	$self->enter_link;	2035	$self->enter_link;
1676		2036
1677	(async {	2037	(async {
1678	$path = new cf::path $path;	2038	my $map = eval {
1679
1680	my $map = cf::map::find $path->as_string;	2039	my $map = cf::map::find $path;
		2040
		2041	if ($map) {
1681	$map = $map->customise_for ($self) if $map;	2042	$map = $map->customise_for ($self);
1682		2043	$map = $check->($map) if $check && $map;
1683	# warn "entering ", $map->path, " at ($x, $y)\n"	2044	} else {
1684	# if $map;
1685
1686	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2045	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2046	}
1687		2047
		2048	$map
		2049	};
		2050
		2051	if ($@) {
		2052	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2053	LOG llevError | logBacktrace, Carp::longmess $@;
		2054	}
		2055
		2056	if ($gen == $self->{_goto_generation}) {
		2057	delete $self->{_goto_generation};
1688	$self->leave_link ($map, $x, $y);	2058	$self->leave_link ($map, $x, $y);
		2059	}
1689	})->prio (1);	2060	})->prio (1);
1690	}	2061	}
1691		2062
1692	=item $player_object->enter_exit ($exit_object)	2063	=item $player_object->enter_exit ($exit_object)
1693		2064
…		…
1695		2066
1696	sub parse_random_map_params {	2067	sub parse_random_map_params {
1697	my ($spec) = @_;	2068	my ($spec) = @_;
1698		2069
1699	my $rmp = { # defaults	2070	my $rmp = { # defaults
1700	xsize => 10,	2071	xsize => (cf::rndm 15, 40),
1701	ysize => 10,	2072	ysize => (cf::rndm 15, 40),
		2073	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2074	#layout => string,
1702	};	2075	};
1703		2076
1704	for (split /\n/, $spec) {	2077	for (split /\n/, $spec) {
1705	my ($k, $v) = split /\s+/, $_, 2;	2078	my ($k, $v) = split /\s+/, $_, 2;
1706		2079
…		…
1710	$rmp	2083	$rmp
1711	}	2084	}
1712		2085
1713	sub prepare_random_map {	2086	sub prepare_random_map {
1714	my ($exit) = @_;	2087	my ($exit) = @_;
		2088
		2089	my $guard = cf::lock_acquire "exit_prepare:$exit";
1715		2090
1716	# all this does is basically replace the /! path by	2091	# all this does is basically replace the /! path by
1717	# a new random map path (?random/...) with a seed	2092	# a new random map path (?random/...) with a seed
1718	# that depends on the exit object	2093	# that depends on the exit object
1719		2094
1720	my $rmp = parse_random_map_params $exit->msg;	2095	my $rmp = parse_random_map_params $exit->msg;
1721		2096
1722	if ($exit->map) {	2097	if ($exit->map) {
1723	$rmp->{region} = $exit->map->region_name;	2098	$rmp->{region} = $exit->region->name;
1724	$rmp->{origin_map} = $exit->map->path;	2099	$rmp->{origin_map} = $exit->map->path;
1725	$rmp->{origin_x} = $exit->x;	2100	$rmp->{origin_x} = $exit->x;
1726	$rmp->{origin_y} = $exit->y;	2101	$rmp->{origin_y} = $exit->y;
1727	}	2102	}
1728		2103
1729	$rmp->{random_seed} ||= $exit->random_seed;	2104	$rmp->{random_seed} ||= $exit->random_seed;
1730		2105
1731	my $data = cf::to_json $rmp;	2106	my $data = cf::to_json $rmp;
1732	my $md5 = Digest::MD5::md5_hex $data;	2107	my $md5 = Digest::MD5::md5_hex $data;
		2108	my $meta = "$RANDOMDIR/$md5.meta";
1733		2109
1734	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2110	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1735	aio_write $fh, 0, (length $data), $data, 0;	2111	aio_write $fh, 0, (length $data), $data, 0;
		2112	undef $fh;
		2113	aio_rename "$meta~", $meta;
1736		2114
1737	$exit->slaying ("?random/$md5");	2115	$exit->slaying ("?random/$md5");
1738	$exit->msg (undef);	2116	$exit->msg (undef);
1739	}	2117	}
1740	}	2118	}
1741		2119
1742	sub cf::object::player::enter_exit {	2120	sub cf::object::player::enter_exit {
1743	my ($self, $exit) = @_;	2121	my ($self, $exit) = @_;
1744		2122
1745	return unless $self->type == cf::PLAYER;	2123	return unless $self->type == cf::PLAYER;
		2124
		2125	if ($exit->slaying eq "/!") {
		2126	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2127	# the problem is that $exit might not survive long enough
		2128	# so it needs to be done right now, right here
		2129	cf::sync_job { prepare_random_map $exit };
		2130	}
		2131
		2132	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2133	my $hp = $exit->stats->hp;
		2134	my $sp = $exit->stats->sp;
1746		2135
1747	$self->enter_link;	2136	$self->enter_link;
1748		2137
1749	(async {	2138	(async {
1750	$self->deactivate_recursive; # just to be sure	2139	$self->deactivate_recursive; # just to be sure
1751	unless (eval {	2140	unless (eval {
1752	prepare_random_map $exit	2141	$self->goto ($slaying, $hp, $sp);
1753	if $exit->slaying eq "/!";
1754
1755	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1756	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1757		2142
1758	1;	2143	1;
1759	}) {	2144	}) {
1760	$self->message ("Something went wrong deep within the crossfire server. "	2145	$self->message ("Something went wrong deep within the crossfire server. "
1761	. "I'll try to bring you back to the map you were before. "	2146	. "I'll try to bring you back to the map you were before. "
1762	. "Please report this to the dungeon master",	2147	. "Please report this to the dungeon master!",
1763	cf::NDI_UNIQUE | cf::NDI_RED);	2148	cf::NDI_UNIQUE | cf::NDI_RED);
1764		2149
1765	warn "ERROR in enter_exit: $@";	2150	warn "ERROR in enter_exit: $@";
1766	$self->leave_link;	2151	$self->leave_link;
1767	}	2152	}
1768	})->prio (1);	2153	})->prio (1);
…		…
1781		2166
1782	sub cf::client::send_drawinfo {	2167	sub cf::client::send_drawinfo {
1783	my ($self, $text, $flags) = @_;	2168	my ($self, $text, $flags) = @_;
1784		2169
1785	utf8::encode $text;	2170	utf8::encode $text;
1786	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2171	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1787	}	2172	}
1788		2173
		2174	=item $client->ext_event ($type, %msg)
		2175
		2176	Sends an exti event to the client.
		2177
		2178	=cut
		2179
		2180	sub cf::client::ext_event($$%) {
		2181	my ($self, $type, %msg) = @_;
		2182
		2183	$msg{msgtype} = "event_$type";
		2184	$self->send_packet ("ext " . cf::to_json \%msg);
		2185	}
1789		2186
1790	=item $success = $client->query ($flags, "text", \&cb)	2187	=item $success = $client->query ($flags, "text", \&cb)
1791		2188
1792	Queues a query to the client, calling the given callback with	2189	Queues a query to the client, calling the given callback with
1793	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2190	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1822	# get handled first	2219	# get handled first
1823	my $queue = delete $ns->{query_queue}	2220	my $queue = delete $ns->{query_queue}
1824	or return; # be conservative, not sure how that can happen, but we saw a crash here	2221	or return; # be conservative, not sure how that can happen, but we saw a crash here
1825		2222
1826	(shift @$queue)->[1]->($msg);	2223	(shift @$queue)->[1]->($msg);
		2224	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1827		2225
1828	push @{ $ns->{query_queue} }, @$queue;	2226	push @{ $ns->{query_queue} }, @$queue;
1829		2227
1830	if (@{ $ns->{query_queue} } == @$queue) {	2228	if (@{ $ns->{query_queue} } == @$queue) {
1831	if (@$queue) {	2229	if (@$queue) {
…		…
1889		2287
1890	# here we export the classes and methods available to script code	2288	# here we export the classes and methods available to script code
1891		2289
1892	=pod	2290	=pod
1893		2291
1894	The following fucntions and emthods are available within a safe environment:	2292	The following functions and methods are available within a safe environment:
1895		2293
1896	cf::object contr pay_amount pay_player map	2294	cf::object contr pay_amount pay_player map
1897	cf::object::player player	2295	cf::object::player player
1898	cf::player peaceful	2296	cf::player peaceful
1899	cf::map trigger	2297	cf::map trigger
…		…
1984	#############################################################################	2382	#############################################################################
1985		2383
1986	=head2 EXTENSION DATABASE SUPPORT	2384	=head2 EXTENSION DATABASE SUPPORT
1987		2385
1988	Crossfire maintains a very simple database for extension use. It can	2386	Crossfire maintains a very simple database for extension use. It can
1989	currently store anything that can be serialised using Storable, which	2387	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1990	excludes objects.	2388	convert to/from binary).
1991		2389
1992	The parameter C<$family> should best start with the name of the extension	2390	The parameter C<$family> should best start with the name of the extension
1993	using it, it should be unique.	2391	using it, it should be unique.
1994		2392
1995	=over 4	2393	=over 4
1996		2394
1997	=item $hashref = cf::db_get $family
1998
1999	Return a hashref for use by the extension C<$family>, which can be
2000	modified. After modifications, you have to call C<cf::db_dirty> or
2001	C<cf::db_sync>.
2002
2003	=item $value = cf::db_get $family => $key	2395	=item $value = cf::db_get $family => $key
2004		2396
2005	Returns a single value from the database	2397	Returns a single value from the database.
2006
2007	=item cf::db_put $family => $hashref
2008
2009	Stores the given family hashref into the database. Updates are delayed, if
2010	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2011		2398
2012	=item cf::db_put $family => $key => $value	2399	=item cf::db_put $family => $key => $value
2013		2400
2014	Stores the given C<$value> in the family hash. Updates are delayed, if you	2401	Stores the given C<$value> in the family.
2015	want the data to be synced to disk immediately, use C<cf::db_sync>.
2016
2017	=item cf::db_dirty
2018
2019	Marks the database as dirty, to be updated at a later time.
2020
2021	=item cf::db_sync
2022
2023	Immediately write the database to disk I<if it is dirty>.
2024		2402
2025	=cut	2403	=cut
2026		2404
2027	our $DB;	2405	our $DB;
2028		2406
2029	{	2407	sub db_init {
2030	my $path = cf::localdir . "/database.pst";	2408	unless ($DB) {
		2409	$DB = BDB::db_create $DB_ENV;
2031		2410
2032	sub db_load() {	2411	cf::sync_job {
2033	$DB = stat $path ? Storable::retrieve $path : { };	2412	eval {
2034	}	2413	$DB->set_flags (BDB::CHKSUM);
2035		2414
2036	my $pid;	2415	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2037		2416	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2038	sub db_save() {	2417	cf::cleanup "db_open(db): $!" if $!;
2039	waitpid $pid, 0 if $pid;	2418	};
2040	if (0 == ($pid = fork)) {	2419	cf::cleanup "db_open(db): $@" if $@;
2041	$DB->{_meta}{version} = 1;
2042	Storable::nstore $DB, "$path~";
2043	rename "$path~", $path;
2044	cf::_exit 0 if defined $pid;
2045	}	2420	};
2046	}
2047
2048	my $dirty;
2049
2050	sub db_sync() {
2051	db_save if $dirty;
2052	undef $dirty;
2053	}
2054
2055	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2056	db_sync;
2057	});	2421	}
		2422	}
2058		2423
2059	sub db_dirty() {
2060	$dirty = 1;
2061	$idle->start;
2062	}
2063
2064	sub db_get($;$) {	2424	sub db_get($$) {
2065	@_ >= 2	2425	my $key = "$_[0]/$_[1]";
2066	? $DB->{$_[0]}{$_[1]}
2067	: ($DB->{$_[0]} ||= { })
2068	}
2069		2426
		2427	cf::sync_job {
		2428	BDB::db_get $DB, undef, $key, my $data;
		2429
		2430	$! ? ()
		2431	: $data
		2432	}
		2433	}
		2434
2070	sub db_put($$;$) {	2435	sub db_put($$$) {
2071	if (@_ >= 3) {	2436	BDB::dbreq_pri 4;
2072	$DB->{$_[0]}{$_[1]} = $_[2];	2437	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2073	} else {	2438	}
2074	$DB->{$_[0]} = $_[1];
2075	}
2076	db_dirty;
2077	}
2078		2439
2079	cf::global->attach (	2440	=item cf::cache $id => [$paths...], $processversion => $process
2080	prio => 10000,	2441
2081	on_cleanup => sub {	2442	Generic caching function that returns the value of the resource $id,
2082	db_sync;	2443	caching and regenerating as required.
		2444
		2445	This function can block.
		2446
		2447	=cut
		2448
		2449	sub cache {
		2450	my ($id, $src, $processversion, $process) = @_;
		2451
		2452	my $meta =
		2453	join "\x00",
		2454	$processversion,
		2455	map {
		2456	aio_stat $_
		2457	and Carp::croak "$_: $!";
		2458
		2459	($_, (stat _)[7,9])
		2460	} @$src;
		2461
		2462	my $dbmeta = db_get cache => "$id/meta";
		2463	if ($dbmeta ne $meta) {
		2464	# changed, we may need to process
		2465
		2466	my @data;
		2467	my $md5;
		2468
		2469	for (0 .. $#$src) {
		2470	0 <= aio_load $src->[$_], $data[$_]
		2471	or Carp::croak "$src->[$_]: $!";
2083	},	2472	}
2084	);	2473
		2474	# if processing is expensive, check
		2475	# checksum first
		2476	if (1) {
		2477	$md5 =
		2478	join "\x00",
		2479	$processversion,
		2480	map {
		2481	Coro::cede;
		2482	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2483	} 0.. $#$src;
		2484
		2485
		2486	my $dbmd5 = db_get cache => "$id/md5";
		2487	if ($dbmd5 eq $md5) {
		2488	db_put cache => "$id/meta", $meta;
		2489
		2490	return db_get cache => "$id/data";
		2491	}
		2492	}
		2493
		2494	my $t1 = Time::HiRes::time;
		2495	my $data = $process->(\@data);
		2496	my $t2 = Time::HiRes::time;
		2497
		2498	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2499
		2500	db_put cache => "$id/data", $data;
		2501	db_put cache => "$id/md5" , $md5;
		2502	db_put cache => "$id/meta", $meta;
		2503
		2504	return $data;
		2505	}
		2506
		2507	db_get cache => "$id/data"
		2508	}
		2509
		2510	=item fork_call { }, $args
		2511
		2512	Executes the given code block with the given arguments in a seperate
		2513	process, returning the results. Everything must be serialisable with
		2514	Coro::Storable. May, of course, block. Note that the executed sub may
		2515	never block itself or use any form of Event handling.
		2516
		2517	=cut
		2518
		2519	sub fork_call(&@) {
		2520	my ($cb, @args) = @_;
		2521
		2522	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2523	# or die "socketpair: $!";
		2524	pipe my $fh1, my $fh2
		2525	or die "pipe: $!";
		2526
		2527	if (my $pid = fork) {
		2528	close $fh2;
		2529
		2530	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2531	$res = Coro::Storable::thaw $res;
		2532
		2533	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2534
		2535	die $$res unless "ARRAY" eq ref $res;
		2536
		2537	return wantarray ? @$res : $res->[-1];
		2538	} else {
		2539	reset_signals;
		2540	local $SIG{__WARN__};
		2541	local $SIG{__DIE__};
		2542	eval {
		2543	close $fh1;
		2544
		2545	my @res = eval { $cb->(@args) };
		2546	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2547	};
		2548
		2549	warn $@ if $@;
		2550	_exit 0;
		2551	}
2085	}	2552	}
2086		2553
2087	#############################################################################	2554	#############################################################################
2088	# the server's main()	2555	# the server's init and main functions
		2556
		2557	sub load_facedata($) {
		2558	my ($path) = @_;
		2559
		2560	warn "loading facedata from $path\n";
		2561
		2562	my $facedata;
		2563	0 < aio_load $path, $facedata
		2564	or die "$path: $!";
		2565
		2566	$facedata = Coro::Storable::thaw $facedata;
		2567
		2568	$facedata->{version} == 2
		2569	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2570
		2571	{
		2572	my $faces = $facedata->{faceinfo};
		2573
		2574	while (my ($face, $info) = each %$faces) {
		2575	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2576	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2577	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2578	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2579	Coro::cede;
		2580	}
		2581
		2582	while (my ($face, $info) = each %$faces) {
		2583	next unless $info->{smooth};
		2584	my $idx = cf::face::find $face
		2585	or next;
		2586	if (my $smooth = cf::face::find $info->{smooth}) {
		2587	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2588	} else {
		2589	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2590	}
		2591	Coro::cede;
		2592	}
		2593	}
		2594
		2595	{
		2596	my $anims = $facedata->{animinfo};
		2597
		2598	while (my ($anim, $info) = each %$anims) {
		2599	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2600	Coro::cede;
		2601	}
		2602
		2603	cf::anim::invalidate_all; # d'oh
		2604	}
		2605
		2606	1
		2607	}
		2608
		2609	sub reload_regions {
		2610	load_resource_file "$MAPDIR/regions"
		2611	or die "unable to load regions file\n";
		2612	}
		2613
		2614	sub reload_facedata {
		2615	load_facedata "$DATADIR/facedata"
		2616	or die "unable to load facedata\n";
		2617	}
		2618
		2619	sub reload_archetypes {
		2620	load_resource_file "$DATADIR/archetypes"
		2621	or die "unable to load archetypes\n";
		2622	}
		2623
		2624	sub reload_treasures {
		2625	load_resource_file "$DATADIR/treasures"
		2626	or die "unable to load treasurelists\n";
		2627	}
		2628
		2629	sub reload_resources {
		2630	warn "reloading resource files...\n";
		2631
		2632	reload_regions;
		2633	reload_facedata;
		2634	#reload_archetypes;#d#
		2635	reload_archetypes;
		2636	reload_treasures;
		2637
		2638	warn "finished reloading resource files\n";
		2639	}
		2640
		2641	sub init {
		2642	reload_resources;
		2643	}
2089		2644
2090	sub cfg_load {	2645	sub cfg_load {
2091	open my $fh, "<:utf8", cf::confdir . "/config"	2646	open my $fh, "<:utf8", "$CONFDIR/config"
2092	or return;	2647	or return;
2093		2648
2094	local $/;	2649	local $/;
2095	*CFG = YAML::Syck::Load <$fh>;	2650	*CFG = YAML::Syck::Load <$fh>;
2096		2651
…		…
2110		2665
2111	sub main {	2666	sub main {
2112	# we must not ever block the main coroutine	2667	# we must not ever block the main coroutine
2113	local $Coro::idle = sub {	2668	local $Coro::idle = sub {
2114	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2669	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2670	(async {
2115	async { Event::one_event };	2671	Event::one_event;
		2672	})->prio (Coro::PRIO_MAX);
2116	};	2673	};
2117		2674
2118	cfg_load;	2675	cfg_load;
2119	db_load;	2676	db_init;
2120	load_extensions;	2677	load_extensions;
		2678
		2679	$TICK_WATCHER->start;
2121	Event::loop;	2680	Event::loop;
2122	}	2681	}
2123		2682
2124	#############################################################################	2683	#############################################################################
2125	# initialisation	2684	# initialisation and cleanup
2126		2685
		2686	# install some emergency cleanup handlers
		2687	BEGIN {
		2688	for my $signal (qw(INT HUP TERM)) {
		2689	Event->signal (
		2690	reentrant => 0,
		2691	data => WF_AUTOCANCEL,
		2692	signal => $signal,
		2693	prio => 0,
		2694	cb => sub {
		2695	cf::cleanup "SIG$signal";
		2696	},
		2697	);
		2698	}
		2699	}
		2700
		2701	sub emergency_save() {
		2702	my $freeze_guard = cf::freeze_mainloop;
		2703
		2704	warn "enter emergency perl save\n";
		2705
		2706	cf::sync_job {
		2707	# use a peculiar iteration method to avoid tripping on perl
		2708	# refcount bugs in for. also avoids problems with players
		2709	# and maps saved/destroyed asynchronously.
		2710	warn "begin emergency player save\n";
		2711	for my $login (keys %cf::PLAYER) {
		2712	my $pl = $cf::PLAYER{$login} or next;
		2713	$pl->valid or next;
		2714	$pl->save;
		2715	}
		2716	warn "end emergency player save\n";
		2717
		2718	warn "begin emergency map save\n";
		2719	for my $path (keys %cf::MAP) {
		2720	my $map = $cf::MAP{$path} or next;
		2721	$map->valid or next;
		2722	$map->save;
		2723	}
		2724	warn "end emergency map save\n";
		2725
		2726	warn "begin emergency database checkpoint\n";
		2727	BDB::db_env_txn_checkpoint $DB_ENV;
		2728	warn "end emergency database checkpoint\n";
		2729	};
		2730
		2731	warn "leave emergency perl save\n";
		2732	}
		2733
		2734	sub post_cleanup {
		2735	my ($make_core) = @_;
		2736
		2737	warn Carp::longmess "post_cleanup backtrace"
		2738	if $make_core;
		2739	}
		2740
2127	sub reload() {	2741	sub do_reload_perl() {
2128	# can/must only be called in main	2742	# can/must only be called in main
2129	if ($Coro::current != $Coro::main) {	2743	if ($Coro::current != $Coro::main) {
2130	warn "can only reload from main coroutine\n";	2744	warn "can only reload from main coroutine";
2131	return;	2745	return;
2132	}	2746	}
2133		2747
2134	warn "reloading...";	2748	warn "reloading...";
2135		2749
2136	my $guard = freeze_mainloop;	2750	warn "entering sync_job";
		2751
		2752	cf::sync_job {
		2753	cf::write_runtime; # external watchdog should not bark
2137	cf::emergency_save;	2754	cf::emergency_save;
		2755	cf::write_runtime; # external watchdog should not bark
2138		2756
2139	eval {	2757	warn "syncing database to disk";
		2758	BDB::db_env_txn_checkpoint $DB_ENV;
		2759
2140	# if anything goes wrong in here, we should simply crash as we already saved	2760	# if anything goes wrong in here, we should simply crash as we already saved
2141		2761
2142	# cancel all watchers	2762	warn "cancelling all WF_AUTOCANCEL watchers";
2143	for (Event::all_watchers) {	2763	for (Event::all_watchers) {
2144	$_->cancel if $_->data & WF_AUTOCANCEL;	2764	$_->cancel if $_->data & WF_AUTOCANCEL;
2145	}	2765	}
2146		2766
		2767	warn "flushing outstanding aio requests";
		2768	for (;;) {
		2769	BDB::flush;
		2770	IO::AIO::flush;
		2771	Coro::cede;
		2772	last unless IO::AIO::nreqs || BDB::nreqs;
		2773	warn "iterate...";
		2774	}
		2775
		2776	++$RELOAD;
		2777
2147	# cancel all extension coros	2778	warn "cancelling all extension coros";
2148	$_->cancel for values %EXT_CORO;	2779	$_->cancel for values %EXT_CORO;
2149	%EXT_CORO = ();	2780	%EXT_CORO = ();
2150		2781
2151	# unload all extensions	2782	warn "removing commands";
2152	for (@exts) {	2783	%COMMAND = ();
		2784
		2785	warn "removing ext commands";
		2786	%EXTCMD = ();
		2787
		2788	warn "unloading/nuking all extensions";
		2789	for my $pkg (@EXTS) {
2153	warn "unloading <$_>";	2790	warn "... unloading $pkg";
2154	unload_extension $_;	2791
		2792	if (my $cb = $pkg->can ("unload")) {
		2793	eval {
		2794	$cb->($pkg);
		2795	1
		2796	} or warn "$pkg unloaded, but with errors: $@";
2155	}	2797	}
2156		2798
		2799	warn "... nuking $pkg";
		2800	Symbol::delete_package $pkg;
		2801	}
		2802
2157	# unload all modules loaded from $LIBDIR	2803	warn "unloading all perl modules loaded from $LIBDIR";
2158	while (my ($k, $v) = each %INC) {	2804	while (my ($k, $v) = each %INC) {
2159	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2805	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2160		2806
2161	warn "removing <$k>";	2807	warn "... unloading $k";
2162	delete $INC{$k};	2808	delete $INC{$k};
2163		2809
2164	$k =~ s/\.pm$//;	2810	$k =~ s/\.pm$//;
2165	$k =~ s/\//::/g;	2811	$k =~ s/\//::/g;
2166		2812
…		…
2169	}	2815	}
2170		2816
2171	Symbol::delete_package $k;	2817	Symbol::delete_package $k;
2172	}	2818	}
2173		2819
2174	# sync database to disk
2175	cf::db_sync;
2176	IO::AIO::flush;
2177
2178	# get rid of safe::, as good as possible	2820	warn "getting rid of safe::, as good as possible";
2179	Symbol::delete_package "safe::$_"	2821	Symbol::delete_package "safe::$_"
2180	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2822	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2181		2823
2182	# remove register_script_function callbacks
2183	# TODO
2184
2185	# unload cf.pm "a bit"	2824	warn "unloading cf.pm \"a bit\"";
2186	delete $INC{"cf.pm"};	2825	delete $INC{"cf.pm"};
		2826	delete $INC{"cf/pod.pm"};
2187		2827
2188	# don't, removes xs symbols, too,	2828	# don't, removes xs symbols, too,
2189	# and global variables created in xs	2829	# and global variables created in xs
2190	#Symbol::delete_package __PACKAGE__;	2830	#Symbol::delete_package __PACKAGE__;
2191		2831
2192	# reload cf.pm	2832	warn "unload completed, starting to reload now";
		2833
2193	warn "reloading cf.pm";	2834	warn "reloading cf.pm";
2194	require cf;	2835	require cf;
2195	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2836	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2196		2837
2197	# load config and database again	2838	warn "loading config and database again";
2198	cf::cfg_load;	2839	cf::cfg_load;
2199	cf::db_load;
2200		2840
2201	# load extensions
2202	warn "load extensions";	2841	warn "loading extensions";
2203	cf::load_extensions;	2842	cf::load_extensions;
2204		2843
2205	# reattach attachments to objects	2844	warn "reattaching attachments to objects/players";
2206	warn "reattach";	2845	_global_reattach; # objects, sockets
2207	_global_reattach;	2846	warn "reattaching attachments to maps";
2208	reattach $_ for values %MAP;	2847	reattach $_ for values %MAP;
2209	};	2848	warn "reattaching attachments to players";
		2849	reattach $_ for values %PLAYER;
2210		2850
2211	if ($@) {	2851	warn "leaving sync_job";
		2852
		2853	1
		2854	} or do {
2212	warn $@;	2855	warn $@;
2213	warn "error while reloading, exiting.";	2856	warn "error while reloading, exiting.";
2214	exit 1;	2857	exit 1;
2215	}	2858	};
2216		2859
2217	warn "reloaded successfully";	2860	warn "reloaded";
2218	};	2861	};
2219		2862
2220	#############################################################################	2863	our $RELOAD_WATCHER; # used only during reload
2221		2864
2222	unless ($LINK_MAP) {	2865	sub reload_perl() {
2223	$LINK_MAP = cf::map::new;	2866	# doing reload synchronously and two reloads happen back-to-back,
		2867	# coro crashes during coro_state_free->destroy here.
2224		2868
2225	$LINK_MAP->width (41);	2869	$RELOAD_WATCHER ||= Event->timer (
2226	$LINK_MAP->height (41);	2870	reentrant => 0,
2227	$LINK_MAP->alloc;
2228	$LINK_MAP->path ("{link}");
2229	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2230	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2231
2232	# dirty hack because... archetypes are not yet loaded
2233	Event->timer (
2234	after => 10,	2871	after => 0,
		2872	data => WF_AUTOCANCEL,
2235	cb => sub {	2873	cb => sub {
2236	$_[0]->w->cancel;	2874	do_reload_perl;
2237		2875	undef $RELOAD_WATCHER;
2238	# provide some exits "home"
2239	my $exit = cf::object::new "exit";
2240
2241	$exit->slaying ($EMERGENCY_POSITION->[0]);
2242	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2243	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2244
2245	$LINK_MAP->insert ($exit->clone, 19, 19);
2246	$LINK_MAP->insert ($exit->clone, 19, 20);
2247	$LINK_MAP->insert ($exit->clone, 19, 21);
2248	$LINK_MAP->insert ($exit->clone, 20, 19);
2249	$LINK_MAP->insert ($exit->clone, 20, 21);
2250	$LINK_MAP->insert ($exit->clone, 21, 19);
2251	$LINK_MAP->insert ($exit->clone, 21, 20);
2252	$LINK_MAP->insert ($exit->clone, 21, 21);
2253
2254	$exit->destroy;
2255	});	2876	},
2256		2877	);
2257	$LINK_MAP->{deny_save} = 1;
2258	$LINK_MAP->{deny_reset} = 1;
2259
2260	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2261	}	2878	}
2262
2263	register "<global>", __PACKAGE__;
2264		2879
2265	register_command "reload" => sub {	2880	register_command "reload" => sub {
2266	my ($who, $arg) = @_;	2881	my ($who, $arg) = @_;
2267		2882
2268	if ($who->flag (FLAG_WIZ)) {	2883	if ($who->flag (FLAG_WIZ)) {
2269	$who->message ("start of reload.");
2270	reload;
2271	$who->message ("end of reload.");	2884	$who->message ("reloading server.");
		2885	async { reload_perl };
2272	}	2886	}
2273	};	2887	};
2274		2888
2275	unshift @INC, $LIBDIR;	2889	unshift @INC, $LIBDIR;
2276		2890
		2891	my $bug_warning = 0;
		2892
		2893	our @WAIT_FOR_TICK;
		2894	our @WAIT_FOR_TICK_BEGIN;
		2895
		2896	sub wait_for_tick {
		2897	return unless $TICK_WATCHER->is_active;
		2898	return if $Coro::current == $Coro::main;
		2899
		2900	my $signal = new Coro::Signal;
		2901	push @WAIT_FOR_TICK, $signal;
		2902	$signal->wait;
		2903	}
		2904
		2905	sub wait_for_tick_begin {
		2906	return unless $TICK_WATCHER->is_active;
		2907	return if $Coro::current == $Coro::main;
		2908
		2909	my $signal = new Coro::Signal;
		2910	push @WAIT_FOR_TICK_BEGIN, $signal;
		2911	$signal->wait;
		2912	}
		2913
		2914	my $min = 1e6;#d#
		2915	my $avg = 10;
2277	$TICK_WATCHER = Event->timer (	2916	$TICK_WATCHER = Event->timer (
2278	reentrant => 0,	2917	reentrant => 0,
		2918	parked => 1,
2279	prio => 0,	2919	prio => 0,
2280	at => $NEXT_TICK || $TICK,	2920	at => $NEXT_TICK || $TICK,
2281	data => WF_AUTOCANCEL,	2921	data => WF_AUTOCANCEL,
2282	cb => sub {	2922	cb => sub {
		2923	if ($Coro::current != $Coro::main) {
		2924	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2925	unless ++$bug_warning > 10;
		2926	return;
		2927	}
		2928
		2929	$NOW = $tick_start = Event::time;
		2930
2283	cf::server_tick; # one server iteration	2931	cf::server_tick; # one server iteration
		2932
		2933	0 && sync_job {#d#
		2934	for(1..10) {
		2935	my $t = Event::time;
		2936	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2937	or die;
		2938
		2939	$map->width (50);
		2940	$map->height (50);
		2941	$map->alloc;
		2942	$map->_load_objects ("/tmp/x.map", 1);
		2943	my $t = Event::time - $t;
		2944
		2945	#next unless $t < 0.0013;#d#
		2946	if ($t < $min) {
		2947	$min = $t;
		2948	}
		2949	$avg = $avg * 0.99 + $t * 0.01;
		2950	}
		2951	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2952	exit 0;
		2953	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2954	};
		2955
2284	$RUNTIME += $TICK;	2956	$RUNTIME += $TICK;
2285	$NEXT_TICK += $TICK;	2957	$NEXT_TICK += $TICK;
2286		2958
		2959	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2960	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2961	Coro::async_pool {
		2962	write_runtime
		2963	or warn "ERROR: unable to write runtime file: $!";
		2964	};
		2965	}
		2966
		2967	# my $AFTER = Event::time;
		2968	# warn $AFTER - $NOW;#d#
		2969
		2970	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2971	$sig->send;
		2972	}
		2973	while (my $sig = shift @WAIT_FOR_TICK) {
		2974	$sig->send;
		2975	}
		2976
		2977	$NOW = Event::time;
		2978
2287	# if we are delayed by four ticks or more, skip them all	2979	# if we are delayed by four ticks or more, skip them all
2288	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2980	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2289		2981
2290	$TICK_WATCHER->at ($NEXT_TICK);	2982	$TICK_WATCHER->at ($NEXT_TICK);
2291	$TICK_WATCHER->start;	2983	$TICK_WATCHER->start;
		2984
		2985	$LOAD = ($NOW - $tick_start) / $TICK;
		2986	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2987
		2988	_post_tick;
		2989
		2990
2292	},	2991	},
2293	);	2992	);
2294		2993
		2994	{
2295	IO::AIO::max_poll_time $TICK * 0.2;	2995	BDB::max_poll_time $TICK * 0.1;
2296		2996	$BDB_POLL_WATCHER = Event->io (
2297	Event->io (	2997	reentrant => 0,
2298	fd => IO::AIO::poll_fileno,	2998	fd => BDB::poll_fileno,
2299	poll => 'r',	2999	poll => 'r',
2300	prio => 5,	3000	prio => 0,
2301	data => WF_AUTOCANCEL,
2302	cb => \&IO::AIO::poll_cb,
2303	);
2304
2305	Event->timer (
2306	data => WF_AUTOCANCEL,	3001	data => WF_AUTOCANCEL,
2307	after => 0,	3002	cb => \&BDB::poll_cb,
2308	interval => 10,	3003	);
2309	cb => sub {	3004	BDB::min_parallel 8;
2310	(Coro::unblock_sub {	3005
2311	write_runtime	3006	BDB::set_sync_prepare {
2312	or warn "ERROR: unable to write runtime file: $!";	3007	my $status;
		3008	my $current = $Coro::current;
		3009	(
		3010	sub {
		3011	$status = $!;
		3012	$current->ready; undef $current;
		3013	},
		3014	sub {
		3015	Coro::schedule while defined $current;
		3016	$! = $status;
		3017	},
		3018	)
		3019	};
		3020
		3021	unless ($DB_ENV) {
		3022	$DB_ENV = BDB::db_env_create;
		3023
		3024	cf::sync_job {
		3025	eval {
		3026	BDB::db_env_open
		3027	$DB_ENV,
		3028	$BDBDIR,
		3029	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3030	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3031	0666;
		3032
		3033	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3034
		3035	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3036	$DB_ENV->set_lk_detect;
		3037	};
		3038
		3039	cf::cleanup "db_env_open(db): $@" if $@;
2313	})->();	3040	};
2314	},	3041	}
2315	);	3042	}
		3043
		3044	{
		3045	IO::AIO::min_parallel 8;
		3046
		3047	undef $Coro::AIO::WATCHER;
		3048	IO::AIO::max_poll_time $TICK * 0.1;
		3049	$AIO_POLL_WATCHER = Event->io (
		3050	reentrant => 0,
		3051	data => WF_AUTOCANCEL,
		3052	fd => IO::AIO::poll_fileno,
		3053	poll => 'r',
		3054	prio => 6,
		3055	cb => \&IO::AIO::poll_cb,
		3056	);
		3057	}
		3058
		3059	my $_log_backtrace;
		3060
		3061	sub _log_backtrace {
		3062	my ($msg, @addr) = @_;
		3063
		3064	$msg =~ s/\n//;
		3065
		3066	# limit the # of concurrent backtraces
		3067	if ($_log_backtrace < 2) {
		3068	++$_log_backtrace;
		3069	async {
		3070	my @bt = fork_call {
		3071	@addr = map { sprintf "%x", $_ } @addr;
		3072	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3073	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3074	or die "addr2line: $!";
		3075
		3076	my @funcs;
		3077	my @res = <$fh>;
		3078	chomp for @res;
		3079	while (@res) {
		3080	my ($func, $line) = splice @res, 0, 2, ();
		3081	push @funcs, "[$func] $line";
		3082	}
		3083
		3084	@funcs
		3085	};
		3086
		3087	LOG llevInfo, "[ABT] $msg\n";
		3088	LOG llevInfo, "[ABT] $_\n" for @bt;
		3089	--$_log_backtrace;
		3090	};
		3091	} else {
		3092	LOG llevInfo, "[ABT] $msg\n";
		3093	LOG llevInfo, "[ABT] [suppressed]\n";
		3094	}
		3095	}
		3096
		3097	# load additional modules
		3098	use cf::pod;
2316		3099
2317	END { cf::emergency_save }	3100	END { cf::emergency_save }
2318		3101
2319	1	3102	1
2320		3103

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