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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.145 by root, Sun Jan 7 21:54:59 2007 UTC vs.
Revision 1.277 by root, Sun Jun 10 04:24:50 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, "cfperl: $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 {	948	sub load_extension {
956	my ($path) = @_;	949	my ($path) = @_;
957		950
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
959	my $base = $1;	952	my $base = $1;
960	my $pkg = $1;	953	my $pkg = $1;
961	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
963		956
964	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
965		958
966	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
967	or die "$path: $!";	960	or die "$path: $!";
968		961
969	my $source =	962	my $source =
970	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
973	. "\n};\n1";	966	. "\n};\n1";
974		967
975	eval $source	968	unless (eval $source) {
976	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
977	: "extension disabled.\n";	970	: "extension disabled.\n";
978		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
979	push @exts, $pkg;	972	warn $@;
980	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
981		974	exit 1;
982	# no strict 'refs';	975	}
983	# @{"$pkg\::ISA"} = ext::;	976	die $@;
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	# }	977	}
998		978
999	# remove commands	979	push @EXTS, $pkg;
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	}	980	}
1024		981
1025	sub load_extensions {	982	sub load_extensions {
1026	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	984	next unless -r $ext;
…		…
1031	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
1032	}	989	}
1033	}	990	}
1034		991
1035	#############################################################################	992	#############################################################################
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		993
1073	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1074		995
1075	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1076		997
1077	=cut	998	=cut
1078		999
1079	package cf::player;	1000	package cf::player;
1080		1001
		1002	use Coro::AIO;
		1003
1081	=head3 cf::player	1004	=head3 cf::player
1082		1005
1083	=over 4	1006	=over 4
1084		1007
1085	=item cf::player::find $login	1008	=item cf::player::find $login
…		…
1087	Returns the given player object, loading it if necessary (might block).	1010	Returns the given player object, loading it if necessary (might block).
1088		1011
1089	=cut	1012	=cut
1090		1013
1091	sub playerdir($) {	1014	sub playerdir($) {
1092	cf::localdir	1015	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1017	}
1098		1018
1099	sub path($) {	1019	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1021
1102	(playerdir $login) . "/$login.pl"	1022	(playerdir $login) . "/playerdata"
1103	}	1023	}
1104		1024
1105	sub find_active($) {	1025	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1026	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1027	and $cf::PLAYER{$_[0]}->active
…		…
1110		1030
1111	sub exists($) {	1031	sub exists($) {
1112	my ($login) = @_;	1032	my ($login) = @_;
1113		1033
1114	$cf::PLAYER{$login}	1034	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1035	or cf::sync_job { !aio_stat path $login }
1116	}	1036	}
1117		1037
1118	sub find($) {	1038	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1039	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1040	my $login = $_[0];
1121		1041
1122	my $guard = cf::lock_acquire "user_find:$login";	1042	my $guard = cf::lock_acquire "user_find:$login";
1123		1043
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1044	$cf::PLAYER{$_[0]} || do {
		1045	# rename old playerfiles to new ones
		1046	#TODO: remove when no longer required
		1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1050	aio_unlink +(playerdir $login) . "/$login.pl";
		1051
		1052	my $pl = load_pl path $login
		1053	or return;
		1054	$cf::PLAYER{$login} = $pl
		1055	}
1125	};	1056	}
1126	}	1057	}
1127		1058
1128	sub save($) {	1059	sub save($) {
1129	my ($pl) = @_;	1060	my ($pl) = @_;
1130		1061
…		…
1132		1063
1133	my $path = path $pl;	1064	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1065	my $guard = cf::lock_acquire "user_save:$path";
1135		1066
1136	return if $pl->{deny_save};	1067	return if $pl->{deny_save};
		1068
		1069	aio_mkdir playerdir $pl, 0770;
1137	$pl->{last_save} = $cf::RUNTIME;	1070	$pl->{last_save} = $cf::RUNTIME;
1138		1071
1139	Coro::cede;
1140	$pl->save_pl ($path);	1072	$pl->save_pl ($path);
1141	Coro::cede;	1073	Coro::cede;
1142	}	1074	}
1143		1075
1144	sub new($) {	1076	sub new($) {
…		…
1152	$cf::PLAYER{$login} = $self;	1084	$cf::PLAYER{$login} = $self;
1153		1085
1154	$self	1086	$self
1155	}	1087	}
1156		1088
		1089	=item $pl->quit_character
		1090
		1091	Nukes the player without looking back. If logged in, the connection will
		1092	be destroyed. May block for a long time.
		1093
		1094	=cut
		1095
1157	sub quit_character {	1096	sub quit_character {
1158	my ($pl) = @_;	1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
1159		1100
1160	$pl->{deny_save} = 1;	1101	$pl->{deny_save} = 1;
1161	$pl->password ("*"); # this should lock out the player until we nuked the dir	1102	$pl->password ("*"); # this should lock out the player until we nuked the dir
1162		1103
1163	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1165	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1106	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1166	$pl->ns->destroy if $pl->ns;	1107	$pl->ns->destroy if $pl->ns;
1167		1108
1168	my $path = playerdir $pl;	1109	my $path = playerdir $pl;
1169	my $temp = "$path~$cf::RUNTIME~deleting~";	1110	my $temp = "$path~$cf::RUNTIME~deleting~";
1170	IO::AIO::aio_rename $path, $temp, sub {	1111	aio_rename $path, $temp;
1171	delete $cf::PLAYER{$pl->ob->name};	1112	delete $cf::PLAYER{$pl->ob->name};
1172	$pl->destroy;	1113	$pl->destroy;
1173		1114
		1115	my $prefix = qr<^~\Q$name\E/>;
		1116
		1117	# nuke player maps
		1118	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1119
1174	IO::AIO::aio_rmtree $temp;	1120	IO::AIO::aio_rmtree $temp;
		1121	}
		1122
		1123	=item $pl->kick
		1124
		1125	Kicks a player out of the game. This destroys the connection.
		1126
		1127	=cut
		1128
		1129	sub kick {
		1130	my ($pl, $kicker) = @_;
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1133	$pl->killer ("kicked");
		1134	$pl->ns->destroy;
		1135	}
		1136
		1137	=item cf::player::list_logins
		1138
		1139	Returns am arrayref of all valid playernames in the system, can take a
		1140	while and may block, so not sync_job-capable, ever.
		1141
		1142	=cut
		1143
		1144	sub list_logins {
		1145	my $dirs = aio_readdir $PLAYERDIR
		1146	or return [];
		1147
		1148	my @logins;
		1149
		1150	for my $login (@$dirs) {
		1151	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1152	aio_read $fh, 0, 512, my $buf, 0 or next;
		1153	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1154
		1155	utf8::decode $login;
		1156	push @logins, $login;
1175	};	1157	}
1176	}
1177		1158
		1159	\@logins
		1160	}
		1161
		1162	=item $player->maps
		1163
		1164	Returns an arrayref of map paths that are private for this
		1165	player. May block.
		1166
		1167	=cut
		1168
		1169	sub maps($) {
		1170	my ($pl) = @_;
		1171
		1172	$pl = ref $pl ? $pl->ob->name : $pl;
		1173
		1174	my $files = aio_readdir playerdir $pl
		1175	or return;
		1176
		1177	my @paths;
		1178
		1179	for (@$files) {
		1180	utf8::decode $_;
		1181	next if /\.(?:pl|pst)$/;
		1182	next unless /^$PATH_SEP/o;
		1183
		1184	push @paths, cf::map::normalise "~$pl/$_";
		1185	}
		1186
		1187	\@paths
		1188	}
		1189
1178	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1179		1191
1180	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1181		1193
1182	=cut	1194	=cut
1183		1195
1184	sub ext_reply($$$%) {	1196	sub ext_reply($$%) {
1185	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1186		1198
1187	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1188		1200
1189	$self->send ("ext " . cf::to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
1190	}	1202	}
1191		1203
1192	package cf;	1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		1211	my ($self, $type, %msg) = @_;
		1212
		1213	$self->ns->ext_event ($type, %msg);
		1214	}
		1215
		1216	=head3 cf::region
		1217
		1218	=over 4
		1219
		1220	=cut
		1221
		1222	package cf::region;
		1223
		1224	=item cf::region::find_by_path $path
		1225
		1226	Tries to decuce the probable region for a map knowing only its path.
		1227
		1228	=cut
		1229
		1230	sub find_by_path($) {
		1231	my ($path) = @_;
		1232
		1233	my ($match, $specificity);
		1234
		1235	for my $region (list) {
		1236	if ($region->match && $path =~ $region->match) {
		1237	($match, $specificity) = ($region, $region->specificity)
		1238	if $region->specificity > $specificity;
		1239	}
		1240	}
		1241
		1242	$match
		1243	}
1193		1244
1194	=back	1245	=back
1195
1196		1246
1197	=head3 cf::map	1247	=head3 cf::map
1198		1248
1199	=over 4	1249	=over 4
1200		1250
…		…
1203	package cf::map;	1253	package cf::map;
1204		1254
1205	use Fcntl;	1255	use Fcntl;
1206	use Coro::AIO;	1256	use Coro::AIO;
1207		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1208	our $MAX_RESET = 3600;	1262	our $MAX_RESET = 3600;
1209	our $DEFAULT_RESET = 3000;	1263	our $DEFAULT_RESET = 3000;
1210		1264
1211	sub generate_random_map {	1265	sub generate_random_map {
1212	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1213
1214	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1215	cf::map::_create_random_map	1268	$self->_create_random_map (
1216	$path,
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1220	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1221	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1222	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1223	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1224	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1225	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1277	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1226	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1227	(cf::region::find $rmp->{region})	1279	(cf::region::find $rmp->{region}), $rmp->{custom}
		1280	)
		1281	}
		1282
		1283	=item cf::map->register ($regex, $prio)
		1284
		1285	Register a handler for the map path matching the given regex at the
		1286	givne priority (higher is better, built-in handlers have priority 0, the
		1287	default).
		1288
		1289	=cut
		1290
		1291	sub register {
		1292	my (undef, $regex, $prio) = @_;
		1293	my $pkg = caller;
		1294
		1295	no strict;
		1296	push @{"$pkg\::ISA"}, __PACKAGE__;
		1297
		1298	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1299	}
		1300
		1301	# also paths starting with '/'
		1302	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1303
		1304	sub thawer_merge {
		1305	my ($self, $merge) = @_;
		1306
		1307	# we have to keep some variables in memory intact
		1308	local $self->{path};
		1309	local $self->{load_path};
		1310
		1311	$self->SUPER::thawer_merge ($merge);
		1312	}
		1313
		1314	sub normalise {
		1315	my ($path, $base) = @_;
		1316
		1317	$path = "$path"; # make sure its a string
		1318
		1319	$path =~ s/\.map$//;
		1320
		1321	# map plan:
		1322	#
		1323	# /! non-realised random map exit (special hack!)
		1324	# {... are special paths that are not being touched
		1325	# ?xxx/... are special absolute paths
		1326	# ?random/... random maps
		1327	# /... normal maps
		1328	# ~user/... per-player map of a specific user
		1329
		1330	$path =~ s/$PATH_SEP/\//go;
		1331
		1332	# treat it as relative path if it starts with
		1333	# something that looks reasonable
		1334	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1335	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1336
		1337	$base =~ s{[^/]+/?$}{};
		1338	$path = "$base/$path";
		1339	}
		1340
		1341	for ($path) {
		1342	redo if s{//}{/};
		1343	redo if s{/\.?/}{/};
		1344	redo if s{/[^/]+/\.\./}{/};
		1345	}
		1346
		1347	$path
		1348	}
		1349
		1350	sub new_from_path {
		1351	my (undef, $path, $base) = @_;
		1352
		1353	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1354
		1355	$path = normalise $path, $base;
		1356
		1357	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1358	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1359	my $self = bless cf::map::new, $pkg;
		1360	$self->{path} = $path; $self->path ($path);
		1361	$self->init; # pass $1 etc.
		1362	return $self;
		1363	}
		1364	}
		1365
		1366	Carp::carp "unable to resolve path '$path' (base '$base').";
		1367	()
		1368	}
		1369
		1370	sub init {
		1371	my ($self) = @_;
		1372
		1373	$self
		1374	}
		1375
		1376	sub as_string {
		1377	my ($self) = @_;
		1378
		1379	"$self->{path}"
		1380	}
		1381
		1382	# the displayed name, this is a one way mapping
		1383	sub visible_name {
		1384	&as_string
		1385	}
		1386
		1387	# the original (read-only) location
		1388	sub load_path {
		1389	my ($self) = @_;
		1390
		1391	"$MAPDIR/$self->{path}.map"
		1392	}
		1393
		1394	# the temporary/swap location
		1395	sub save_path {
		1396	my ($self) = @_;
		1397
		1398	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1399	"$TMPDIR/$path.map"
		1400	}
		1401
		1402	# the unique path, undef == no special unique path
		1403	sub uniq_path {
		1404	my ($self) = @_;
		1405
		1406	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1407	"$UNIQUEDIR/$path"
1228	}	1408	}
1229		1409
1230	# and all this just because we cannot iterate over	1410	# and all this just because we cannot iterate over
1231	# all maps in C++...	1411	# all maps in C++...
1232	sub change_all_map_light {	1412	sub change_all_map_light {
…		…
1234		1414
1235	$_->change_map_light ($change)	1415	$_->change_map_light ($change)
1236	for grep $_->outdoor, values %cf::MAP;	1416	for grep $_->outdoor, values %cf::MAP;
1237	}	1417	}
1238		1418
		1419	sub decay_objects {
		1420	my ($self) = @_;
		1421
		1422	return if $self->{deny_reset};
		1423
		1424	$self->do_decay_objects;
		1425	}
		1426
		1427	sub unlink_save {
		1428	my ($self) = @_;
		1429
		1430	utf8::encode (my $save = $self->save_path);
		1431	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1432	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1433	}
		1434
1239	sub try_load_header($) {	1435	sub load_header_from($) {
1240	my ($path) = @_;	1436	my ($self, $path) = @_;
1241		1437
1242	utf8::encode $path;	1438	utf8::encode $path;
1243	aio_open $path, O_RDONLY, 0	1439	#aio_open $path, O_RDONLY, 0
		1440	# or return;
		1441
		1442	$self->_load_header ($path)
1244	or return;	1443	or return;
1245		1444
1246	my $map = cf::map::new	1445	$self->{load_path} = $path;
		1446
		1447	1
		1448	}
		1449
		1450	sub load_header_orig {
		1451	my ($self) = @_;
		1452
		1453	$self->load_header_from ($self->load_path)
		1454	}
		1455
		1456	sub load_header_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->load_header_from ($self->save_path)
		1460	}
		1461
		1462	sub prepare_temp {
		1463	my ($self) = @_;
		1464
		1465	$self->last_access ((delete $self->{last_access})
		1466	|| $cf::RUNTIME); #d#
		1467	# safety
		1468	$self->{instantiate_time} = $cf::RUNTIME
		1469	if $self->{instantiate_time} > $cf::RUNTIME;
		1470	}
		1471
		1472	sub prepare_orig {
		1473	my ($self) = @_;
		1474
		1475	$self->{load_original} = 1;
		1476	$self->{instantiate_time} = $cf::RUNTIME;
		1477	$self->last_access ($cf::RUNTIME);
		1478	$self->instantiate;
		1479	}
		1480
		1481	sub load_header {
		1482	my ($self) = @_;
		1483
		1484	if ($self->load_header_temp) {
		1485	$self->prepare_temp;
		1486	} else {
		1487	$self->load_header_orig
1247	or return;	1488	or return;
		1489	$self->prepare_orig;
		1490	}
1248		1491
1249	# for better error messages only, will be overwritten	1492	$self->{deny_reset} = 1
1250	$map->path ($path);	1493	if $self->no_reset;
1251		1494
1252	$map->load_header ($path)	1495	$self->default_region (cf::region::find_by_path $self->{path})
1253	or return;	1496	unless $self->default_region;
1254		1497
1255	$map->{load_path} = $path;	1498	1
1256
1257	$map
1258	}	1499	}
1259		1500
1260	sub find;	1501	sub find;
1261	sub find {	1502	sub find {
1262	my ($path, $origin) = @_;	1503	my ($path, $origin) = @_;
1263		1504
1264	#warn "find<$path,$origin>\n";#d#
1265
1266	$path = new cf::path $path, $origin && $origin->path;	1505	$path = normalise $path, $origin && $origin->path;
1267	my $key = $path->as_string;
1268		1506
1269	cf::lock_wait "map_find:$key";	1507	cf::lock_wait "map_find:$path";
1270		1508
1271	$cf::MAP{$key} || do {	1509	$cf::MAP{$path} || do {
1272	my $guard = cf::lock_acquire "map_find:$key";	1510	my $guard = cf::lock_acquire "map_find:$path";
1273		1511	my $map = new_from_path cf::map $path
1274	# do it the slow way
1275	my $map = try_load_header $path->save_path;
1276
1277	Coro::cede;
1278
1279	if ($map) {
1280	$map->last_access ((delete $map->{last_access})
1281	|| $cf::RUNTIME); #d#
1282	# safety
1283	$map->{instantiate_time} = $cf::RUNTIME
1284	if $map->{instantiate_time} > $cf::RUNTIME;
1285	} else {
1286	if (my $rmp = $path->random_map_params) {
1287	$map = generate_random_map $key, $rmp;
1288	} else {
1289	$map = try_load_header $path->load_path;
1290	}
1291
1292	$map or return;	1512	or return;
1293		1513
1294	$map->{load_original} = 1;
1295	$map->{instantiate_time} = $cf::RUNTIME;
1296	$map->last_access ($cf::RUNTIME);
1297	$map->instantiate;
1298
1299	# per-player maps become, after loading, normal maps
1300	$map->per_player (0) if $path->{user_rel};
1301	}
1302
1303	$map->path ($key);
1304	$map->{path} = $path;
1305	$map->{last_save} = $cf::RUNTIME;	1514	$map->{last_save} = $cf::RUNTIME;
1306		1515
1307	Coro::cede;	1516	$map->load_header
		1517	or return;
1308		1518
1309	if ($map->should_reset) {	1519	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1520	# doing this can freeze the server in a sync job, obviously
		1521	#$cf::WAIT_FOR_TICK->wait;
1310	$map->reset;	1522	$map->reset;
1311	undef $guard;	1523	undef $guard;
1312	$map = find $path	1524	return find $path;
1313	or return;
1314	}	1525	}
1315		1526
1316	$cf::MAP{$key} = $map	1527	$cf::MAP{$path} = $map
1317	}	1528	}
1318	}	1529	}
		1530
		1531	sub pre_load { }
		1532	sub post_load { }
1319		1533
1320	sub load {	1534	sub load {
1321	my ($self) = @_;	1535	my ($self) = @_;
1322		1536
		1537	local $self->{deny_reset} = 1; # loading can take a long time
		1538
1323	my $path = $self->{path};	1539	my $path = $self->{path};
		1540
		1541	{
1324	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1542	my $guard = cf::lock_acquire "map_load:$path";
1325		1543
1326	return if $self->in_memory != cf::MAP_SWAPPED;	1544	return if $self->in_memory != cf::MAP_SWAPPED;
1327		1545
1328	$self->in_memory (cf::MAP_LOADING);	1546	$self->in_memory (cf::MAP_LOADING);
1329		1547
1330	$self->alloc;	1548	$self->alloc;
		1549
		1550	$self->pre_load;
		1551	Coro::cede;
		1552
1331	$self->load_objects ($self->{load_path}, 1)	1553	$self->_load_objects ($self->{load_path}, 1)
1332	or return;	1554	or return;
1333		1555
1334	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1335	if delete $self->{load_original};	1557	if delete $self->{load_original};
1336		1558
1337	if (my $uniq = $path->uniq_path) {	1559	if (my $uniq = $self->uniq_path) {
1338	utf8::encode $uniq;	1560	utf8::encode $uniq;
1339	if (aio_open $uniq, O_RDONLY, 0) {	1561	if (aio_open $uniq, O_RDONLY, 0) {
1340	$self->clear_unique_items;	1562	$self->clear_unique_items;
1341	$self->load_objects ($uniq, 0);	1563	$self->_load_objects ($uniq, 0);
1342	}	1564	}
1343	}	1565	}
1344		1566
1345	Coro::cede;	1567	Coro::cede;
1346
1347	# now do the right thing for maps	1568	# now do the right thing for maps
1348	$self->link_multipart_objects;	1569	$self->link_multipart_objects;
1349
1350	if ($self->{path}->is_style_map) {
1351	$self->{deny_save} = 1;
1352	$self->{deny_reset} = 1;
1353	} else {
1354	$self->fix_auto_apply;
1355	$self->decay_objects;
1356	$self->update_buttons;
1357	$self->set_darkness_map;
1358	$self->difficulty ($self->estimate_difficulty)	1570	$self->difficulty ($self->estimate_difficulty)
1359	unless $self->difficulty;	1571	unless $self->difficulty;
		1572	Coro::cede;
		1573
		1574	unless ($self->{deny_activate}) {
		1575	$self->decay_objects;
		1576	$self->fix_auto_apply;
		1577	$self->update_buttons;
		1578	Coro::cede;
		1579	$self->set_darkness_map;
		1580	Coro::cede;
1360	$self->activate;	1581	$self->activate;
1361	}	1582	}
1362		1583
1363	Coro::cede;
1364
1365	$self->in_memory (cf::MAP_IN_MEMORY);	1584	$self->in_memory (cf::MAP_IN_MEMORY);
		1585	}
		1586
		1587	$self->post_load;
		1588	}
		1589
		1590	sub customise_for {
		1591	my ($self, $ob) = @_;
		1592
		1593	return find "~" . $ob->name . "/" . $self->{path}
		1594	if $self->per_player;
		1595
		1596	# return find "?party/" . $ob->name . "/" . $self->{path}
		1597	# if $self->per_party;
		1598
		1599	$self
		1600	}
		1601
		1602	# find and load all maps in the 3x3 area around a map
		1603	sub load_diag {
		1604	my ($map) = @_;
		1605
		1606	my @diag; # diagonal neighbours
		1607
		1608	for (0 .. 3) {
		1609	my $neigh = $map->tile_path ($_)
		1610	or next;
		1611	$neigh = find $neigh, $map
		1612	or next;
		1613	$neigh->load;
		1614
		1615	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1616	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1617	}
		1618
		1619	for (@diag) {
		1620	my $neigh = find @$_
		1621	or next;
		1622	$neigh->load;
		1623	}
1366	}	1624	}
1367		1625
1368	sub find_sync {	1626	sub find_sync {
1369	my ($path, $origin) = @_;	1627	my ($path, $origin) = @_;
1370		1628
1371	cf::sync_job { cf::map::find $path, $origin }	1629	cf::sync_job { find $path, $origin }
1372	}	1630	}
1373		1631
1374	sub do_load_sync {	1632	sub do_load_sync {
1375	my ($map) = @_;	1633	my ($map) = @_;
1376		1634
1377	cf::sync_job { $map->load };	1635	cf::sync_job { $map->load };
1378	}	1636	}
1379		1637
		1638	our %MAP_PREFETCH;
		1639	our $MAP_PREFETCHER = undef;
		1640
		1641	sub find_async {
		1642	my ($path, $origin) = @_;
		1643
		1644	$path = normalise $path, $origin && $origin->{path};
		1645
		1646	if (my $map = $cf::MAP{$path}) {
		1647	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1648	}
		1649
		1650	undef $MAP_PREFETCH{$path};
		1651	$MAP_PREFETCHER ||= cf::async {
		1652	while (%MAP_PREFETCH) {
		1653	for my $path (keys %MAP_PREFETCH) {
		1654	my $map = find $path
		1655	or next;
		1656	$map->load;
		1657
		1658	delete $MAP_PREFETCH{$path};
		1659	}
		1660	}
		1661	undef $MAP_PREFETCHER;
		1662	};
		1663	$MAP_PREFETCHER->prio (6);
		1664
		1665	()
		1666	}
		1667
1380	sub save {	1668	sub save {
1381	my ($self) = @_;	1669	my ($self) = @_;
1382		1670
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	1671	my $lock = cf::lock_acquire "map_data:" . $self->path;
1384		1672
1385	$self->{last_save} = $cf::RUNTIME;	1673	$self->{last_save} = $cf::RUNTIME;
1386		1674
1387	return unless $self->dirty;	1675	return unless $self->dirty;
1388		1676
1389	my $save = $self->{path}->save_path; utf8::encode $save;	1677	my $save = $self->save_path; utf8::encode $save;
1390	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
1391		1679
1392	$self->{load_path} = $save;	1680	$self->{load_path} = $save;
1393		1681
1394	return if $self->{deny_save};	1682	return if $self->{deny_save};
1395		1683
…		…
1398	cf::async {	1686	cf::async {
1399	$_->contr->save for $self->players;	1687	$_->contr->save for $self->players;
1400	};	1688	};
1401		1689
1402	if ($uniq) {	1690	if ($uniq) {
1403	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1691	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1404	$self->save_objects ($uniq, cf::IO_UNIQUES);	1692	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1405	} else {	1693	} else {
1406	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1694	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1407	}	1695	}
1408	}	1696	}
1409		1697
1410	sub swap_out {	1698	sub swap_out {
1411	my ($self) = @_;	1699	my ($self) = @_;
…		…
1425		1713
1426	sub reset_at {	1714	sub reset_at {
1427	my ($self) = @_;	1715	my ($self) = @_;
1428		1716
1429	# TODO: safety, remove and allow resettable per-player maps	1717	# TODO: safety, remove and allow resettable per-player maps
1430	return 1e99 if $self->{path}{user_rel};
1431	return 1e99 if $self->{deny_reset};	1718	return 1e99 if $self->{deny_reset};
1432		1719
1433	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1720	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1434	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1721	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1435		1722
…		…
1440	my ($self) = @_;	1727	my ($self) = @_;
1441		1728
1442	$self->reset_at <= $cf::RUNTIME	1729	$self->reset_at <= $cf::RUNTIME
1443	}	1730	}
1444		1731
1445	sub unlink_save {
1446	my ($self) = @_;
1447
1448	utf8::encode (my $save = $self->{path}->save_path);
1449	aioreq_pri 3; IO::AIO::aio_unlink $save;
1450	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1451	}
1452
1453	sub rename {
1454	my ($self, $new_path) = @_;
1455
1456	$self->unlink_save;
1457
1458	delete $cf::MAP{$self->path};
1459	$self->{path} = new cf::path $new_path;
1460	$self->path ($self->{path}->as_string);
1461	$cf::MAP{$self->path} = $self;
1462
1463	$self->save;
1464	}
1465
1466	sub reset {	1732	sub reset {
1467	my ($self) = @_;	1733	my ($self) = @_;
1468		1734
1469	my $lock = cf::lock_acquire "map_data:" . $self->path;	1735	my $lock = cf::lock_acquire "map_data:$self->{path}";
1470		1736
1471	return if $self->players;	1737	return if $self->players;
1472	return if $self->{path}{user_rel};#d#
1473		1738
1474	warn "resetting map ", $self->path;#d#	1739	warn "resetting map ", $self->path;
		1740
		1741	$self->in_memory (cf::MAP_SWAPPED);
		1742
		1743	# need to save uniques path
		1744	unless ($self->{deny_save}) {
		1745	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1746
		1747	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1748	if $uniq;
		1749	}
1475		1750
1476	delete $cf::MAP{$self->path};	1751	delete $cf::MAP{$self->path};
		1752
		1753	$self->clear;
1477		1754
1478	$_->clear_links_to ($self) for values %cf::MAP;	1755	$_->clear_links_to ($self) for values %cf::MAP;
1479		1756
1480	$self->unlink_save;	1757	$self->unlink_save;
1481	$self->destroy;	1758	$self->destroy;
…		…
1484	my $nuke_counter = "aaaa";	1761	my $nuke_counter = "aaaa";
1485		1762
1486	sub nuke {	1763	sub nuke {
1487	my ($self) = @_;	1764	my ($self) = @_;
1488		1765
		1766	delete $cf::MAP{$self->path};
		1767
		1768	$self->unlink_save;
		1769
		1770	bless $self, "cf::map";
		1771	delete $self->{deny_reset};
1489	$self->{deny_save} = 1;	1772	$self->{deny_save} = 1;
1490	$self->reset_timeout (1);	1773	$self->reset_timeout (1);
1491	$self->rename ("{nuke}/" . ($nuke_counter++));	1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1775
		1776	$cf::MAP{$self->path} = $self;
		1777
1492	$self->reset; # polite request, might not happen	1778	$self->reset; # polite request, might not happen
1493	}	1779	}
1494		1780
1495	sub customise_for {	1781	=item $maps = cf::map::tmp_maps
1496	my ($map, $ob) = @_;
1497		1782
1498	if ($map->per_player) {	1783	Returns an arrayref with all map paths of currently instantiated and saved
1499	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1784	maps. May block.
		1785
		1786	=cut
		1787
		1788	sub tmp_maps() {
1500	}	1789	[
1501		1790	map {
1502	$map	1791	utf8::decode $_;
		1792	/\.map$/
		1793	? normalise $_
		1794	: ()
		1795	} @{ aio_readdir $TMPDIR or [] }
		1796	]
1503	}	1797	}
1504		1798
1505	sub emergency_save {	1799	=item $maps = cf::map::random_maps
1506	my $freeze_guard = cf::freeze_mainloop;
1507		1800
1508	warn "enter emergency perl save\n";	1801	Returns an arrayref with all map paths of currently instantiated and saved
		1802	random maps. May block.
1509		1803
1510	cf::sync_job {	1804	=cut
1511	warn "begin emergency player save\n";
1512	$_->save for values %cf::PLAYER;
1513	warn "end emergency player save\n";
1514		1805
1515	warn "begin emergency map save\n";	1806	sub random_maps() {
1516	$_->save for values %cf::MAP;	1807	[
1517	warn "end emergency map save\n";	1808	map {
1518	};	1809	utf8::decode $_;
		1810	/\.map$/
		1811	? normalise "?random/$_"
		1812	: ()
		1813	} @{ aio_readdir $RANDOMDIR or [] }
		1814	]
		1815	}
1519		1816
1520	warn "leave emergency perl save\n";	1817	=item cf::map::unique_maps
		1818
		1819	Returns an arrayref of paths of all shared maps that have
		1820	instantiated unique items. May block.
		1821
		1822	=cut
		1823
		1824	sub unique_maps() {
		1825	[
		1826	map {
		1827	utf8::decode $_;
		1828	/\.map$/
		1829	? normalise $_
		1830	: ()
		1831	} @{ aio_readdir $UNIQUEDIR or [] }
		1832	]
1521	}	1833	}
1522		1834
1523	package cf;	1835	package cf;
1524		1836
1525	=back	1837	=back
1526		1838
		1839	=head3 cf::object
		1840
		1841	=cut
		1842
		1843	package cf::object;
		1844
		1845	=over 4
		1846
		1847	=item $ob->inv_recursive
		1848
		1849	Returns the inventory of the object _and_ their inventories, recursively.
		1850
		1851	=cut
		1852
		1853	sub inv_recursive_;
		1854	sub inv_recursive_ {
		1855	map { $_, inv_recursive_ $_->inv } @_
		1856	}
		1857
		1858	sub inv_recursive {
		1859	inv_recursive_ inv $_[0]
		1860	}
		1861
		1862	package cf;
		1863
		1864	=back
1527		1865
1528	=head3 cf::object::player	1866	=head3 cf::object::player
1529		1867
1530	=over 4	1868	=over 4
1531		1869
…		…
1571		1909
1572	=item $player_object->enter_link	1910	=item $player_object->enter_link
1573		1911
1574	Freezes the player and moves him/her to a special map (C<{link}>).	1912	Freezes the player and moves him/her to a special map (C<{link}>).
1575		1913
1576	The player should be reaosnably safe there for short amounts of time. You	1914	The player should be reasonably safe there for short amounts of time. You
1577	I<MUST> call C<leave_link> as soon as possible, though.	1915	I<MUST> call C<leave_link> as soon as possible, though.
1578		1916
		1917	Will never block.
		1918
1579	=item $player_object->leave_link ($map, $x, $y)	1919	=item $player_object->leave_link ($map, $x, $y)
1580		1920
1581	Moves the player out of the specila link map onto the given map. If the	1921	Moves the player out of the special C<{link}> map onto the specified
1582	map is not valid (or omitted), the player will be moved back to the	1922	map. If the map is not valid (or omitted), the player will be moved back
1583	location he/she was before the call to C<enter_link>, or, if that fails,	1923	to the location he/she was before the call to C<enter_link>, or, if that
1584	to the emergency map position.	1924	fails, to the emergency map position.
1585		1925
1586	Might block.	1926	Might block.
1587		1927
1588	=cut	1928	=cut
		1929
		1930	sub link_map {
		1931	unless ($LINK_MAP) {
		1932	$LINK_MAP = cf::map::find "{link}"
		1933	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1934	$LINK_MAP->load;
		1935	}
		1936
		1937	$LINK_MAP
		1938	}
1589		1939
1590	sub cf::object::player::enter_link {	1940	sub cf::object::player::enter_link {
1591	my ($self) = @_;	1941	my ($self) = @_;
1592		1942
1593	$self->deactivate_recursive;	1943	$self->deactivate_recursive;
1594		1944
1595	return if $self->map == $LINK_MAP;	1945	return if UNIVERSAL::isa $self->map, "ext::map_link";
1596		1946
1597	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1947	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1598	if $self->map;	1948	if $self->map && $self->map->{path} ne "{link}";
1599		1949
1600	$self->enter_map ($LINK_MAP, 20, 20);	1950	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1601	}	1951	}
1602		1952
1603	sub cf::object::player::leave_link {	1953	sub cf::object::player::leave_link {
1604	my ($self, $map, $x, $y) = @_;	1954	my ($self, $map, $x, $y) = @_;
		1955
		1956	return unless $self->contr->active;
1605		1957
1606	my $link_pos = delete $self->{_link_pos};	1958	my $link_pos = delete $self->{_link_pos};
1607		1959
1608	unless ($map) {	1960	unless ($map) {
1609	# restore original map position	1961	# restore original map position
…		…
1623	# use -1 or undef as default coordinates, not 0, 0	1975	# use -1 or undef as default coordinates, not 0, 0
1624	($x, $y) = ($map->enter_x, $map->enter_y)	1976	($x, $y) = ($map->enter_x, $map->enter_y)
1625	if $x <=0 && $y <= 0;	1977	if $x <=0 && $y <= 0;
1626		1978
1627	$map->load;	1979	$map->load;
		1980	$map->load_diag;
1628		1981
1629	return unless $self->contr->active;	1982	return unless $self->contr->active;
1630	$self->activate_recursive;	1983	$self->activate_recursive;
		1984
		1985	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1631	$self->enter_map ($map, $x, $y);	1986	$self->enter_map ($map, $x, $y);
1632	}	1987	}
1633		1988
1634	cf::player->attach (
1635	on_logout => sub {
1636	my ($pl) = @_;
1637
1638	# abort map switching before logout
1639	if ($pl->ob->{_link_pos}) {
1640	cf::sync_job {
1641	$pl->ob->leave_link
1642	};
1643	}
1644	},
1645	on_login => sub {
1646	my ($pl) = @_;
1647
1648	# try to abort aborted map switching on player login :)
1649	# should happen only on crashes
1650	if ($pl->ob->{_link_pos}) {
1651	$pl->ob->enter_link;
1652	(async {
1653	# we need this sleep as the login has a concurrent enter_exit running
1654	# and this sleep increases chances of the player not ending up in scorn
1655	$pl->ob->reply (undef,
1656	"There was an internal problem at your last logout, "
1657	. "the server will try to bring you to your intended destination in a second.",
1658	cf::NDI_RED);
1659	Coro::Timer::sleep 1;
1660	$pl->ob->leave_link;
1661	})->prio (2);
1662	}
1663	},
1664	);
1665
1666	=item $player_object->goto ($path, $x, $y)	1989	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1667		1990
		1991	Moves the player to the given map-path and coordinates by first freezing
		1992	her, loading and preparing them map, calling the provided $check callback
		1993	that has to return the map if sucecssful, and then unfreezes the player on
		1994	the new (success) or old (failed) map position.
		1995
1668	=cut	1996	=cut
		1997
		1998	our $GOTOGEN;
1669		1999
1670	sub cf::object::player::goto {	2000	sub cf::object::player::goto {
1671	my ($self, $path, $x, $y) = @_;	2001	my ($self, $path, $x, $y, $check) = @_;
		2002
		2003	# do generation counting so two concurrent goto's will be executed in-order
		2004	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1672		2005
1673	$self->enter_link;	2006	$self->enter_link;
1674		2007
1675	(async {	2008	(async {
1676	$path = new cf::path $path;	2009	my $map = eval {
1677
1678	my $map = cf::map::find $path->as_string;	2010	my $map = cf::map::find $path;
		2011
		2012	if ($map) {
1679	$map = $map->customise_for ($self) if $map;	2013	$map = $map->customise_for ($self);
1680		2014	$map = $check->($map) if $check && $map;
1681	# warn "entering ", $map->path, " at ($x, $y)\n"	2015	} else {
1682	# if $map;
1683
1684	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2016	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2017	}
1685		2018
		2019	$map
		2020	};
		2021
		2022	if ($@) {
		2023	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2024	LOG llevError | logBacktrace, Carp::longmess $@;
		2025	}
		2026
		2027	if ($gen == $self->{_goto_generation}) {
		2028	delete $self->{_goto_generation};
1686	$self->leave_link ($map, $x, $y);	2029	$self->leave_link ($map, $x, $y);
		2030	}
1687	})->prio (1);	2031	})->prio (1);
1688	}	2032	}
1689		2033
1690	=item $player_object->enter_exit ($exit_object)	2034	=item $player_object->enter_exit ($exit_object)
1691		2035
…		…
1693		2037
1694	sub parse_random_map_params {	2038	sub parse_random_map_params {
1695	my ($spec) = @_;	2039	my ($spec) = @_;
1696		2040
1697	my $rmp = { # defaults	2041	my $rmp = { # defaults
1698	xsize => 10,	2042	xsize => (cf::rndm 15, 40),
1699	ysize => 10,	2043	ysize => (cf::rndm 15, 40),
		2044	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2045	#layout => string,
1700	};	2046	};
1701		2047
1702	for (split /\n/, $spec) {	2048	for (split /\n/, $spec) {
1703	my ($k, $v) = split /\s+/, $_, 2;	2049	my ($k, $v) = split /\s+/, $_, 2;
1704		2050
…		…
1708	$rmp	2054	$rmp
1709	}	2055	}
1710		2056
1711	sub prepare_random_map {	2057	sub prepare_random_map {
1712	my ($exit) = @_;	2058	my ($exit) = @_;
		2059
		2060	my $guard = cf::lock_acquire "exit_prepare:$exit";
1713		2061
1714	# all this does is basically replace the /! path by	2062	# all this does is basically replace the /! path by
1715	# a new random map path (?random/...) with a seed	2063	# a new random map path (?random/...) with a seed
1716	# that depends on the exit object	2064	# that depends on the exit object
1717		2065
1718	my $rmp = parse_random_map_params $exit->msg;	2066	my $rmp = parse_random_map_params $exit->msg;
1719		2067
1720	if ($exit->map) {	2068	if ($exit->map) {
1721	$rmp->{region} = $exit->map->region_name;	2069	$rmp->{region} = $exit->region->name;
1722	$rmp->{origin_map} = $exit->map->path;	2070	$rmp->{origin_map} = $exit->map->path;
1723	$rmp->{origin_x} = $exit->x;	2071	$rmp->{origin_x} = $exit->x;
1724	$rmp->{origin_y} = $exit->y;	2072	$rmp->{origin_y} = $exit->y;
1725	}	2073	}
1726		2074
1727	$rmp->{random_seed} ||= $exit->random_seed;	2075	$rmp->{random_seed} ||= $exit->random_seed;
1728		2076
1729	my $data = cf::to_json $rmp;	2077	my $data = cf::to_json $rmp;
1730	my $md5 = Digest::MD5::md5_hex $data;	2078	my $md5 = Digest::MD5::md5_hex $data;
		2079	my $meta = "$RANDOMDIR/$md5.meta";
1731		2080
1732	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2081	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1733	aio_write $fh, 0, (length $data), $data, 0;	2082	aio_write $fh, 0, (length $data), $data, 0;
		2083	undef $fh;
		2084	aio_rename "$meta~", $meta;
1734		2085
1735	$exit->slaying ("?random/$md5");	2086	$exit->slaying ("?random/$md5");
1736	$exit->msg (undef);	2087	$exit->msg (undef);
1737	}	2088	}
1738	}	2089	}
1739		2090
1740	sub cf::object::player::enter_exit {	2091	sub cf::object::player::enter_exit {
1741	my ($self, $exit) = @_;	2092	my ($self, $exit) = @_;
1742		2093
1743	return unless $self->type == cf::PLAYER;	2094	return unless $self->type == cf::PLAYER;
		2095
		2096	if ($exit->slaying eq "/!") {
		2097	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2098	# the problem is that $exit might not survive long enough
		2099	# so it needs to be done right now, right here
		2100	cf::sync_job { prepare_random_map $exit };
		2101	}
		2102
		2103	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2104	my $hp = $exit->stats->hp;
		2105	my $sp = $exit->stats->sp;
1744		2106
1745	$self->enter_link;	2107	$self->enter_link;
1746		2108
1747	(async {	2109	(async {
1748	$self->deactivate_recursive; # just to be sure	2110	$self->deactivate_recursive; # just to be sure
1749	unless (eval {	2111	unless (eval {
1750	prepare_random_map $exit	2112	$self->goto ($slaying, $hp, $sp);
1751	if $exit->slaying eq "/!";
1752
1753	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1754	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1755		2113
1756	1;	2114	1;
1757	}) {	2115	}) {
1758	$self->message ("Something went wrong deep within the crossfire server. "	2116	$self->message ("Something went wrong deep within the crossfire server. "
1759	. "I'll try to bring you back to the map you were before. "	2117	. "I'll try to bring you back to the map you were before. "
1760	. "Please report this to the dungeon master",	2118	. "Please report this to the dungeon master!",
1761	cf::NDI_UNIQUE | cf::NDI_RED);	2119	cf::NDI_UNIQUE | cf::NDI_RED);
1762		2120
1763	warn "ERROR in enter_exit: $@";	2121	warn "ERROR in enter_exit: $@";
1764	$self->leave_link;	2122	$self->leave_link;
1765	}	2123	}
1766	})->prio (1);	2124	})->prio (1);
…		…
1779		2137
1780	sub cf::client::send_drawinfo {	2138	sub cf::client::send_drawinfo {
1781	my ($self, $text, $flags) = @_;	2139	my ($self, $text, $flags) = @_;
1782		2140
1783	utf8::encode $text;	2141	utf8::encode $text;
1784	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2142	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1785	}	2143	}
1786		2144
		2145	=item $client->ext_event ($type, %msg)
		2146
		2147	Sends an exti event to the client.
		2148
		2149	=cut
		2150
		2151	sub cf::client::ext_event($$%) {
		2152	my ($self, $type, %msg) = @_;
		2153
		2154	$msg{msgtype} = "event_$type";
		2155	$self->send_packet ("ext " . cf::to_json \%msg);
		2156	}
1787		2157
1788	=item $success = $client->query ($flags, "text", \&cb)	2158	=item $success = $client->query ($flags, "text", \&cb)
1789		2159
1790	Queues a query to the client, calling the given callback with	2160	Queues a query to the client, calling the given callback with
1791	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2161	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1820	# get handled first	2190	# get handled first
1821	my $queue = delete $ns->{query_queue}	2191	my $queue = delete $ns->{query_queue}
1822	or return; # be conservative, not sure how that can happen, but we saw a crash here	2192	or return; # be conservative, not sure how that can happen, but we saw a crash here
1823		2193
1824	(shift @$queue)->[1]->($msg);	2194	(shift @$queue)->[1]->($msg);
		2195	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1825		2196
1826	push @{ $ns->{query_queue} }, @$queue;	2197	push @{ $ns->{query_queue} }, @$queue;
1827		2198
1828	if (@{ $ns->{query_queue} } == @$queue) {	2199	if (@{ $ns->{query_queue} } == @$queue) {
1829	if (@$queue) {	2200	if (@$queue) {
…		…
1887		2258
1888	# here we export the classes and methods available to script code	2259	# here we export the classes and methods available to script code
1889		2260
1890	=pod	2261	=pod
1891		2262
1892	The following fucntions and emthods are available within a safe environment:	2263	The following functions and methods are available within a safe environment:
1893		2264
1894	cf::object contr pay_amount pay_player map	2265	cf::object contr pay_amount pay_player map
1895	cf::object::player player	2266	cf::object::player player
1896	cf::player peaceful	2267	cf::player peaceful
1897	cf::map trigger	2268	cf::map trigger
…		…
1982	#############################################################################	2353	#############################################################################
1983		2354
1984	=head2 EXTENSION DATABASE SUPPORT	2355	=head2 EXTENSION DATABASE SUPPORT
1985		2356
1986	Crossfire maintains a very simple database for extension use. It can	2357	Crossfire maintains a very simple database for extension use. It can
1987	currently store anything that can be serialised using Storable, which	2358	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1988	excludes objects.	2359	convert to/from binary).
1989		2360
1990	The parameter C<$family> should best start with the name of the extension	2361	The parameter C<$family> should best start with the name of the extension
1991	using it, it should be unique.	2362	using it, it should be unique.
1992		2363
1993	=over 4	2364	=over 4
1994		2365
1995	=item $hashref = cf::db_get $family
1996
1997	Return a hashref for use by the extension C<$family>, which can be
1998	modified. After modifications, you have to call C<cf::db_dirty> or
1999	C<cf::db_sync>.
2000
2001	=item $value = cf::db_get $family => $key	2366	=item $value = cf::db_get $family => $key
2002		2367
2003	Returns a single value from the database	2368	Returns a single value from the database.
2004
2005	=item cf::db_put $family => $hashref
2006
2007	Stores the given family hashref into the database. Updates are delayed, if
2008	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2009		2369
2010	=item cf::db_put $family => $key => $value	2370	=item cf::db_put $family => $key => $value
2011		2371
2012	Stores the given C<$value> in the family hash. Updates are delayed, if you	2372	Stores the given C<$value> in the family.
2013	want the data to be synced to disk immediately, use C<cf::db_sync>.
2014
2015	=item cf::db_dirty
2016
2017	Marks the database as dirty, to be updated at a later time.
2018
2019	=item cf::db_sync
2020
2021	Immediately write the database to disk I<if it is dirty>.
2022		2373
2023	=cut	2374	=cut
2024		2375
2025	our $DB;	2376	our $DB;
2026		2377
2027	{	2378	sub db_init {
2028	my $path = cf::localdir . "/database.pst";	2379	unless ($DB) {
		2380	$DB = BDB::db_create $DB_ENV;
2029		2381
2030	sub db_load() {	2382	cf::sync_job {
2031	$DB = stat $path ? Storable::retrieve $path : { };	2383	eval {
2032	}	2384	$DB->set_flags (BDB::CHKSUM);
2033		2385
2034	my $pid;	2386	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2035		2387	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2036	sub db_save() {	2388	cf::cleanup "db_open(db): $!" if $!;
2037	waitpid $pid, 0 if $pid;	2389	};
2038	if (0 == ($pid = fork)) {	2390	cf::cleanup "db_open(db): $@" if $@;
2039	$DB->{_meta}{version} = 1;
2040	Storable::nstore $DB, "$path~";
2041	rename "$path~", $path;
2042	cf::_exit 0 if defined $pid;
2043	}	2391	};
2044	}
2045
2046	my $dirty;
2047
2048	sub db_sync() {
2049	db_save if $dirty;
2050	undef $dirty;
2051	}
2052
2053	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2054	db_sync;
2055	});	2392	}
		2393	}
2056		2394
2057	sub db_dirty() {
2058	$dirty = 1;
2059	$idle->start;
2060	}
2061
2062	sub db_get($;$) {	2395	sub db_get($$) {
2063	@_ >= 2	2396	my $key = "$_[0]/$_[1]";
2064	? $DB->{$_[0]}{$_[1]}
2065	: ($DB->{$_[0]} ||= { })
2066	}
2067		2397
		2398	cf::sync_job {
		2399	BDB::db_get $DB, undef, $key, my $data;
		2400
		2401	$! ? ()
		2402	: $data
		2403	}
		2404	}
		2405
2068	sub db_put($$;$) {	2406	sub db_put($$$) {
2069	if (@_ >= 3) {	2407	BDB::dbreq_pri 4;
2070	$DB->{$_[0]}{$_[1]} = $_[2];	2408	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2071	} else {	2409	}
2072	$DB->{$_[0]} = $_[1];
2073	}
2074	db_dirty;
2075	}
2076		2410
2077	cf::global->attach (	2411	=item cf::cache $id => [$paths...], $processversion => $process
2078	prio => 10000,	2412
2079	on_cleanup => sub {	2413	Generic caching function that returns the value of the resource $id,
2080	db_sync;	2414	caching and regenerating as required.
		2415
		2416	This function can block.
		2417
		2418	=cut
		2419
		2420	sub cache {
		2421	my ($id, $src, $processversion, $process) = @_;
		2422
		2423	my $meta =
		2424	join "\x00",
		2425	$processversion,
		2426	map {
		2427	aio_stat $_
		2428	and Carp::croak "$_: $!";
		2429
		2430	($_, (stat _)[7,9])
		2431	} @$src;
		2432
		2433	my $dbmeta = db_get cache => "$id/meta";
		2434	if ($dbmeta ne $meta) {
		2435	# changed, we may need to process
		2436
		2437	my @data;
		2438	my $md5;
		2439
		2440	for (0 .. $#$src) {
		2441	0 <= aio_load $src->[$_], $data[$_]
		2442	or Carp::croak "$src->[$_]: $!";
2081	},	2443	}
2082	);	2444
		2445	# if processing is expensive, check
		2446	# checksum first
		2447	if (1) {
		2448	$md5 =
		2449	join "\x00",
		2450	$processversion,
		2451	map {
		2452	Coro::cede;
		2453	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2454	} 0.. $#$src;
		2455
		2456
		2457	my $dbmd5 = db_get cache => "$id/md5";
		2458	if ($dbmd5 eq $md5) {
		2459	db_put cache => "$id/meta", $meta;
		2460
		2461	return db_get cache => "$id/data";
		2462	}
		2463	}
		2464
		2465	my $t1 = Time::HiRes::time;
		2466	my $data = $process->(\@data);
		2467	my $t2 = Time::HiRes::time;
		2468
		2469	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2470
		2471	db_put cache => "$id/data", $data;
		2472	db_put cache => "$id/md5" , $md5;
		2473	db_put cache => "$id/meta", $meta;
		2474
		2475	return $data;
		2476	}
		2477
		2478	db_get cache => "$id/data"
		2479	}
		2480
		2481	=item fork_call { }, $args
		2482
		2483	Executes the given code block with the given arguments in a seperate
		2484	process, returning the results. Everything must be serialisable with
		2485	Coro::Storable. May, of course, block. Note that the executed sub may
		2486	never block itself or use any form of Event handling.
		2487
		2488	=cut
		2489
		2490	sub fork_call(&@) {
		2491	my ($cb, @args) = @_;
		2492
		2493	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2494	# or die "socketpair: $!";
		2495	pipe my $fh1, my $fh2
		2496	or die "pipe: $!";
		2497
		2498	if (my $pid = fork) {
		2499	close $fh2;
		2500
		2501	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2502	$res = Coro::Storable::thaw $res;
		2503
		2504	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2505
		2506	die $$res unless "ARRAY" eq ref $res;
		2507
		2508	return wantarray ? @$res : $res->[-1];
		2509	} else {
		2510	reset_signals;
		2511	local $SIG{__WARN__};
		2512	local $SIG{__DIE__};
		2513	eval {
		2514	close $fh1;
		2515
		2516	my @res = eval { $cb->(@args) };
		2517	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2518	};
		2519
		2520	warn $@ if $@;
		2521	_exit 0;
		2522	}
2083	}	2523	}
2084		2524
2085	#############################################################################	2525	#############################################################################
2086	# the server's main()	2526	# the server's init and main functions
		2527
		2528	sub load_facedata($) {
		2529	my ($path) = @_;
		2530
		2531	warn "loading facedata from $path\n";
		2532
		2533	my $facedata;
		2534	0 < aio_load $path, $facedata
		2535	or die "$path: $!";
		2536
		2537	$facedata = Coro::Storable::thaw $facedata;
		2538
		2539	$facedata->{version} == 2
		2540	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2541
		2542	{
		2543	my $faces = $facedata->{faceinfo};
		2544
		2545	while (my ($face, $info) = each %$faces) {
		2546	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2547	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2548	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2549	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2550	Coro::cede;
		2551	}
		2552
		2553	while (my ($face, $info) = each %$faces) {
		2554	next unless $info->{smooth};
		2555	my $idx = cf::face::find $face
		2556	or next;
		2557	if (my $smooth = cf::face::find $info->{smooth}) {
		2558	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2559	} else {
		2560	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2561	}
		2562	Coro::cede;
		2563	}
		2564	}
		2565
		2566	{
		2567	my $anims = $facedata->{animinfo};
		2568
		2569	while (my ($anim, $info) = each %$anims) {
		2570	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2571	Coro::cede;
		2572	}
		2573
		2574	cf::anim::invalidate_all; # d'oh
		2575	}
		2576
		2577	1
		2578	}
		2579
		2580	sub reload_regions {
		2581	load_resource_file "$MAPDIR/regions"
		2582	or die "unable to load regions file\n";
		2583	}
		2584
		2585	sub reload_facedata {
		2586	load_facedata "$DATADIR/facedata"
		2587	or die "unable to load facedata\n";
		2588	}
		2589
		2590	sub reload_archetypes {
		2591	load_resource_file "$DATADIR/archetypes"
		2592	or die "unable to load archetypes\n";
		2593	}
		2594
		2595	sub reload_treasures {
		2596	load_resource_file "$DATADIR/treasures"
		2597	or die "unable to load treasurelists\n";
		2598	}
		2599
		2600	sub reload_resources {
		2601	warn "reloading resource files...\n";
		2602
		2603	reload_regions;
		2604	reload_facedata;
		2605	#reload_archetypes;#d#
		2606	reload_archetypes;
		2607	reload_treasures;
		2608
		2609	warn "finished reloading resource files\n";
		2610	}
		2611
		2612	sub init {
		2613	reload_resources;
		2614	}
2087		2615
2088	sub cfg_load {	2616	sub cfg_load {
2089	open my $fh, "<:utf8", cf::confdir . "/config"	2617	open my $fh, "<:utf8", "$CONFDIR/config"
2090	or return;	2618	or return;
2091		2619
2092	local $/;	2620	local $/;
2093	*CFG = YAML::Syck::Load <$fh>;	2621	*CFG = YAML::Syck::Load <$fh>;
2094		2622
…		…
2097	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2625	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2098	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2626	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2099		2627
2100	if (exists $CFG{mlockall}) {	2628	if (exists $CFG{mlockall}) {
2101	eval {	2629	eval {
2102	$CFG{mlockall} ? &mlockall : &munlockall	2630	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2103	and die "WARNING: m(un)lockall failed: $!\n";	2631	and die "WARNING: m(un)lockall failed: $!\n";
2104	};	2632	};
2105	warn $@ if $@;	2633	warn $@ if $@;
2106	}	2634	}
2107	}	2635	}
2108		2636
2109	sub main {	2637	sub main {
2110	# we must not ever block the main coroutine	2638	# we must not ever block the main coroutine
2111	local $Coro::idle = sub {	2639	local $Coro::idle = sub {
2112	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2640	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2641	(async {
2113	async { Event::one_event };	2642	Event::one_event;
		2643	})->prio (Coro::PRIO_MAX);
2114	};	2644	};
2115		2645
2116	cfg_load;	2646	cfg_load;
2117	db_load;	2647	db_init;
2118	load_extensions;	2648	load_extensions;
		2649
		2650	$TICK_WATCHER->start;
2119	Event::loop;	2651	Event::loop;
2120	}	2652	}
2121		2653
2122	#############################################################################	2654	#############################################################################
2123	# initialisation	2655	# initialisation and cleanup
2124		2656
		2657	# install some emergency cleanup handlers
		2658	BEGIN {
		2659	for my $signal (qw(INT HUP TERM)) {
		2660	Event->signal (
		2661	reentrant => 0,
		2662	data => WF_AUTOCANCEL,
		2663	signal => $signal,
		2664	prio => 0,
		2665	cb => sub {
		2666	cf::cleanup "SIG$signal";
		2667	},
		2668	);
		2669	}
		2670	}
		2671
		2672	sub emergency_save() {
		2673	my $freeze_guard = cf::freeze_mainloop;
		2674
		2675	warn "enter emergency perl save\n";
		2676
		2677	cf::sync_job {
		2678	# use a peculiar iteration method to avoid tripping on perl
		2679	# refcount bugs in for. also avoids problems with players
		2680	# and maps saved/destroyed asynchronously.
		2681	warn "begin emergency player save\n";
		2682	for my $login (keys %cf::PLAYER) {
		2683	my $pl = $cf::PLAYER{$login} or next;
		2684	$pl->valid or next;
		2685	$pl->save;
		2686	}
		2687	warn "end emergency player save\n";
		2688
		2689	warn "begin emergency map save\n";
		2690	for my $path (keys %cf::MAP) {
		2691	my $map = $cf::MAP{$path} or next;
		2692	$map->valid or next;
		2693	$map->save;
		2694	}
		2695	warn "end emergency map save\n";
		2696
		2697	warn "begin emergency database checkpoint\n";
		2698	BDB::db_env_txn_checkpoint $DB_ENV;
		2699	warn "end emergency database checkpoint\n";
		2700	};
		2701
		2702	warn "leave emergency perl save\n";
		2703	}
		2704
		2705	sub post_cleanup {
		2706	my ($make_core) = @_;
		2707
		2708	warn Carp::longmess "post_cleanup backtrace"
		2709	if $make_core;
		2710	}
		2711
2125	sub reload() {	2712	sub do_reload_perl() {
2126	# can/must only be called in main	2713	# can/must only be called in main
2127	if ($Coro::current != $Coro::main) {	2714	if ($Coro::current != $Coro::main) {
2128	warn "can only reload from main coroutine\n";	2715	warn "can only reload from main coroutine";
2129	return;	2716	return;
2130	}	2717	}
2131		2718
2132	warn "reloading...";	2719	warn "reloading...";
2133		2720
2134	my $guard = freeze_mainloop;	2721	warn "entering sync_job";
		2722
		2723	cf::sync_job {
		2724	cf::write_runtime; # external watchdog should not bark
2135	cf::emergency_save;	2725	cf::emergency_save;
		2726	cf::write_runtime; # external watchdog should not bark
2136		2727
2137	eval {	2728	warn "syncing database to disk";
		2729	BDB::db_env_txn_checkpoint $DB_ENV;
		2730
2138	# if anything goes wrong in here, we should simply crash as we already saved	2731	# if anything goes wrong in here, we should simply crash as we already saved
2139		2732
2140	# cancel all watchers	2733	warn "cancelling all WF_AUTOCANCEL watchers";
2141	for (Event::all_watchers) {	2734	for (Event::all_watchers) {
2142	$_->cancel if $_->data & WF_AUTOCANCEL;	2735	$_->cancel if $_->data & WF_AUTOCANCEL;
2143	}	2736	}
2144		2737
		2738	warn "flushing outstanding aio requests";
		2739	for (;;) {
		2740	BDB::flush;
		2741	IO::AIO::flush;
		2742	Coro::cede;
		2743	last unless IO::AIO::nreqs || BDB::nreqs;
		2744	warn "iterate...";
		2745	}
		2746
		2747	++$RELOAD;
		2748
2145	# cancel all extension coros	2749	warn "cancelling all extension coros";
2146	$_->cancel for values %EXT_CORO;	2750	$_->cancel for values %EXT_CORO;
2147	%EXT_CORO = ();	2751	%EXT_CORO = ();
2148		2752
2149	# unload all extensions	2753	warn "removing commands";
2150	for (@exts) {	2754	%COMMAND = ();
		2755
		2756	warn "removing ext commands";
		2757	%EXTCMD = ();
		2758
		2759	warn "unloading/nuking all extensions";
		2760	for my $pkg (@EXTS) {
2151	warn "unloading <$_>";	2761	warn "... unloading $pkg";
2152	unload_extension $_;	2762
		2763	if (my $cb = $pkg->can ("unload")) {
		2764	eval {
		2765	$cb->($pkg);
		2766	1
		2767	} or warn "$pkg unloaded, but with errors: $@";
2153	}	2768	}
2154		2769
		2770	warn "... nuking $pkg";
		2771	Symbol::delete_package $pkg;
		2772	}
		2773
2155	# unload all modules loaded from $LIBDIR	2774	warn "unloading all perl modules loaded from $LIBDIR";
2156	while (my ($k, $v) = each %INC) {	2775	while (my ($k, $v) = each %INC) {
2157	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2776	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2158		2777
2159	warn "removing <$k>";	2778	warn "... unloading $k";
2160	delete $INC{$k};	2779	delete $INC{$k};
2161		2780
2162	$k =~ s/\.pm$//;	2781	$k =~ s/\.pm$//;
2163	$k =~ s/\//::/g;	2782	$k =~ s/\//::/g;
2164		2783
…		…
2167	}	2786	}
2168		2787
2169	Symbol::delete_package $k;	2788	Symbol::delete_package $k;
2170	}	2789	}
2171		2790
2172	# sync database to disk
2173	cf::db_sync;
2174	IO::AIO::flush;
2175
2176	# get rid of safe::, as good as possible	2791	warn "getting rid of safe::, as good as possible";
2177	Symbol::delete_package "safe::$_"	2792	Symbol::delete_package "safe::$_"
2178	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2793	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2179		2794
2180	# remove register_script_function callbacks
2181	# TODO
2182
2183	# unload cf.pm "a bit"	2795	warn "unloading cf.pm \"a bit\"";
2184	delete $INC{"cf.pm"};	2796	delete $INC{"cf.pm"};
		2797	delete $INC{"cf/pod.pm"};
2185		2798
2186	# don't, removes xs symbols, too,	2799	# don't, removes xs symbols, too,
2187	# and global variables created in xs	2800	# and global variables created in xs
2188	#Symbol::delete_package __PACKAGE__;	2801	#Symbol::delete_package __PACKAGE__;
2189		2802
2190	# reload cf.pm	2803	warn "unload completed, starting to reload now";
		2804
2191	warn "reloading cf.pm";	2805	warn "reloading cf.pm";
2192	require cf;	2806	require cf;
2193	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2807	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2194		2808
2195	# load config and database again	2809	warn "loading config and database again";
2196	cf::cfg_load;	2810	cf::cfg_load;
2197	cf::db_load;
2198		2811
2199	# load extensions
2200	warn "load extensions";	2812	warn "loading extensions";
2201	cf::load_extensions;	2813	cf::load_extensions;
2202		2814
2203	# reattach attachments to objects	2815	warn "reattaching attachments to objects/players";
2204	warn "reattach";	2816	_global_reattach; # objects, sockets
2205	_global_reattach;	2817	warn "reattaching attachments to maps";
2206	reattach $_ for values %MAP;	2818	reattach $_ for values %MAP;
2207	};	2819	warn "reattaching attachments to players";
		2820	reattach $_ for values %PLAYER;
2208		2821
2209	if ($@) {	2822	warn "leaving sync_job";
		2823
		2824	1
		2825	} or do {
2210	warn $@;	2826	warn $@;
2211	warn "error while reloading, exiting.";	2827	warn "error while reloading, exiting.";
2212	exit 1;	2828	exit 1;
2213	}	2829	};
2214		2830
2215	warn "reloaded successfully";	2831	warn "reloaded";
2216	};	2832	};
2217		2833
2218	#############################################################################	2834	our $RELOAD_WATCHER; # used only during reload
2219		2835
2220	unless ($LINK_MAP) {	2836	sub reload_perl() {
2221	$LINK_MAP = cf::map::new;	2837	# doing reload synchronously and two reloads happen back-to-back,
		2838	# coro crashes during coro_state_free->destroy here.
2222		2839
2223	$LINK_MAP->width (41);	2840	$RELOAD_WATCHER ||= Event->timer (
2224	$LINK_MAP->height (41);	2841	reentrant => 0,
2225	$LINK_MAP->alloc;
2226	$LINK_MAP->path ("{link}");
2227	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2228	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2229
2230	# dirty hack because... archetypes are not yet loaded
2231	Event->timer (
2232	after => 10,	2842	after => 0,
		2843	data => WF_AUTOCANCEL,
2233	cb => sub {	2844	cb => sub {
2234	$_[0]->w->cancel;	2845	do_reload_perl;
2235		2846	undef $RELOAD_WATCHER;
2236	# provide some exits "home"
2237	my $exit = cf::object::new "exit";
2238
2239	$exit->slaying ($EMERGENCY_POSITION->[0]);
2240	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2241	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2242
2243	$LINK_MAP->insert ($exit->clone, 19, 19);
2244	$LINK_MAP->insert ($exit->clone, 19, 20);
2245	$LINK_MAP->insert ($exit->clone, 19, 21);
2246	$LINK_MAP->insert ($exit->clone, 20, 19);
2247	$LINK_MAP->insert ($exit->clone, 20, 21);
2248	$LINK_MAP->insert ($exit->clone, 21, 19);
2249	$LINK_MAP->insert ($exit->clone, 21, 20);
2250	$LINK_MAP->insert ($exit->clone, 21, 21);
2251
2252	$exit->destroy;
2253	});	2847	},
2254		2848	);
2255	$LINK_MAP->{deny_save} = 1;
2256	$LINK_MAP->{deny_reset} = 1;
2257
2258	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2259	}	2849	}
2260
2261	register "<global>", __PACKAGE__;
2262		2850
2263	register_command "reload" => sub {	2851	register_command "reload" => sub {
2264	my ($who, $arg) = @_;	2852	my ($who, $arg) = @_;
2265		2853
2266	if ($who->flag (FLAG_WIZ)) {	2854	if ($who->flag (FLAG_WIZ)) {
2267	$who->message ("start of reload.");
2268	reload;
2269	$who->message ("end of reload.");	2855	$who->message ("reloading server.");
		2856	async { reload_perl };
2270	}	2857	}
2271	};	2858	};
2272		2859
2273	unshift @INC, $LIBDIR;	2860	unshift @INC, $LIBDIR;
2274		2861
		2862	my $bug_warning = 0;
		2863
		2864	our @WAIT_FOR_TICK;
		2865	our @WAIT_FOR_TICK_BEGIN;
		2866
		2867	sub wait_for_tick {
		2868	return unless $TICK_WATCHER->is_active;
		2869	return if $Coro::current == $Coro::main;
		2870
		2871	my $signal = new Coro::Signal;
		2872	push @WAIT_FOR_TICK, $signal;
		2873	$signal->wait;
		2874	}
		2875
		2876	sub wait_for_tick_begin {
		2877	return unless $TICK_WATCHER->is_active;
		2878	return if $Coro::current == $Coro::main;
		2879
		2880	my $signal = new Coro::Signal;
		2881	push @WAIT_FOR_TICK_BEGIN, $signal;
		2882	$signal->wait;
		2883	}
		2884
		2885	my $min = 1e6;#d#
		2886	my $avg = 10;
2275	$TICK_WATCHER = Event->timer (	2887	$TICK_WATCHER = Event->timer (
2276	reentrant => 0,	2888	reentrant => 0,
		2889	parked => 1,
2277	prio => 0,	2890	prio => 0,
2278	at => $NEXT_TICK || $TICK,	2891	at => $NEXT_TICK || $TICK,
2279	data => WF_AUTOCANCEL,	2892	data => WF_AUTOCANCEL,
2280	cb => sub {	2893	cb => sub {
		2894	if ($Coro::current != $Coro::main) {
		2895	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2896	unless ++$bug_warning > 10;
		2897	return;
		2898	}
		2899
		2900	$NOW = $tick_start = Event::time;
		2901
2281	cf::server_tick; # one server iteration	2902	cf::server_tick; # one server iteration
		2903
		2904	0 && sync_job {#d#
		2905	for(1..10) {
		2906	my $t = Event::time;
		2907	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2908	or die;
		2909
		2910	$map->width (50);
		2911	$map->height (50);
		2912	$map->alloc;
		2913	$map->_load_objects ("/tmp/x.map", 1);
		2914	my $t = Event::time - $t;
		2915
		2916	#next unless $t < 0.0013;#d#
		2917	if ($t < $min) {
		2918	$min = $t;
		2919	}
		2920	$avg = $avg * 0.99 + $t * 0.01;
		2921	}
		2922	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2923	exit 0;
		2924	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2925	};
		2926
2282	$RUNTIME += $TICK;	2927	$RUNTIME += $TICK;
2283	$NEXT_TICK += $TICK;	2928	$NEXT_TICK += $TICK;
2284		2929
		2930	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2931	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2932	Coro::async_pool {
		2933	write_runtime
		2934	or warn "ERROR: unable to write runtime file: $!";
		2935	};
		2936	}
		2937
		2938	# my $AFTER = Event::time;
		2939	# warn $AFTER - $NOW;#d#
		2940
		2941	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2942	$sig->send;
		2943	}
		2944	while (my $sig = shift @WAIT_FOR_TICK) {
		2945	$sig->send;
		2946	}
		2947
		2948	$NOW = Event::time;
		2949
2285	# if we are delayed by four ticks or more, skip them all	2950	# if we are delayed by four ticks or more, skip them all
2286	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2951	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2287		2952
2288	$TICK_WATCHER->at ($NEXT_TICK);	2953	$TICK_WATCHER->at ($NEXT_TICK);
2289	$TICK_WATCHER->start;	2954	$TICK_WATCHER->start;
		2955
		2956	$LOAD = ($NOW - $tick_start) / $TICK;
		2957	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2958
		2959	_post_tick;
		2960
		2961
2290	},	2962	},
2291	);	2963	);
2292		2964
		2965	{
2293	IO::AIO::max_poll_time $TICK * 0.2;	2966	BDB::max_poll_time $TICK * 0.1;
2294		2967	$BDB_POLL_WATCHER = Event->io (
2295	Event->io (	2968	reentrant => 0,
2296	fd => IO::AIO::poll_fileno,	2969	fd => BDB::poll_fileno,
2297	poll => 'r',	2970	poll => 'r',
2298	prio => 5,	2971	prio => 0,
2299	data => WF_AUTOCANCEL,
2300	cb => \&IO::AIO::poll_cb,
2301	);
2302
2303	Event->timer (
2304	data => WF_AUTOCANCEL,	2972	data => WF_AUTOCANCEL,
2305	after => 0,	2973	cb => \&BDB::poll_cb,
2306	interval => 10,	2974	);
2307	cb => sub {	2975	BDB::min_parallel 8;
2308	(Coro::unblock_sub {	2976
2309	write_runtime	2977	BDB::set_sync_prepare {
2310	or warn "ERROR: unable to write runtime file: $!";	2978	my $status;
		2979	my $current = $Coro::current;
		2980	(
		2981	sub {
		2982	$status = $!;
		2983	$current->ready; undef $current;
		2984	},
		2985	sub {
		2986	Coro::schedule while defined $current;
		2987	$! = $status;
		2988	},
		2989	)
		2990	};
		2991
		2992	unless ($DB_ENV) {
		2993	$DB_ENV = BDB::db_env_create;
		2994
		2995	cf::sync_job {
		2996	eval {
		2997	BDB::db_env_open
		2998	$DB_ENV,
		2999	$BDBDIR,
		3000	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3001	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3002	0666;
		3003
		3004	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3005
		3006	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3007	$DB_ENV->set_lk_detect;
		3008	};
		3009
		3010	cf::cleanup "db_env_open(db): $@" if $@;
2311	})->();	3011	};
2312	},	3012	}
2313	);	3013	}
		3014
		3015	{
		3016	IO::AIO::min_parallel 8;
		3017
		3018	undef $Coro::AIO::WATCHER;
		3019	IO::AIO::max_poll_time $TICK * 0.1;
		3020	$AIO_POLL_WATCHER = Event->io (
		3021	reentrant => 0,
		3022	data => WF_AUTOCANCEL,
		3023	fd => IO::AIO::poll_fileno,
		3024	poll => 'r',
		3025	prio => 6,
		3026	cb => \&IO::AIO::poll_cb,
		3027	);
		3028	}
		3029
		3030	my $_log_backtrace;
		3031
		3032	sub _log_backtrace {
		3033	my ($msg, @addr) = @_;
		3034
		3035	$msg =~ s/\n//;
		3036
		3037	# limit the # of concurrent backtraces
		3038	if ($_log_backtrace < 2) {
		3039	++$_log_backtrace;
		3040	async {
		3041	my @bt = fork_call {
		3042	@addr = map { sprintf "%x", $_ } @addr;
		3043	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3044	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3045	or die "addr2line: $!";
		3046
		3047	my @funcs;
		3048	my @res = <$fh>;
		3049	chomp for @res;
		3050	while (@res) {
		3051	my ($func, $line) = splice @res, 0, 2, ();
		3052	push @funcs, "[$func] $line";
		3053	}
		3054
		3055	@funcs
		3056	};
		3057
		3058	LOG llevInfo, "[ABT] $msg\n";
		3059	LOG llevInfo, "[ABT] $_\n" for @bt;
		3060	--$_log_backtrace;
		3061	};
		3062	} else {
		3063	LOG llevInfo, "[ABT] $msg\n";
		3064	LOG llevInfo, "[ABT] [suppressed]\n";
		3065	}
		3066	}
		3067
		3068	# load additional modules
		3069	use cf::pod;
2314		3070
2315	END { cf::emergency_save }	3071	END { cf::emergency_save }
2316		3072
2317	1	3073	1
2318		3074

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