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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.156 by root, Tue Jan 9 22:07:08 2007 UTC vs.
Revision 1.276 by root, Sun Jun 10 04:05:47 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
39		56
		57	our $RELOAD; # number of reloads so far
40	our @EVENT;	58	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		59
43	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
44	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	76	our $NEXT_TICK;
46	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
47		82
48	our %CFG;	83	our %CFG;
49		84
50	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	86	our $RUNTIME;
52		87
53	our %PLAYER; # all users	88	our %PLAYER; # all users
54	our %MAP; # all maps	89	our %MAP; # all maps
55	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		91
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
61		98
62	binmode STDOUT;	99	binmode STDOUT;
63	binmode STDERR;	100	binmode STDERR;
64		101
65	# read virtual server time, if available	102	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
67	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
68	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
69	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
70	}	107	}
71		108
72	mkdir cf::localdir;	109	mkdir $_
73	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		111
78	# a special map that is always available
79	our $LINK_MAP;
80	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
81		115
82	#############################################################################	116	#############################################################################
83		117
84	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
85		119
…		…
92	=item $cf::RUNTIME	126	=item $cf::RUNTIME
93		127
94	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
95	every server tick.	129	every server tick.
96		130
97	=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
98		134
99	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
100	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.
101		139
102	=item $cf::NOW	140	=item $cf::NOW
103		141
104	The time of the last (current) server tick.	142	The time of the last (current) server tick.
105		143
106	=item $cf::TICK	144	=item $cf::TICK
107		145
108	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.
109		157
110	=item %cf::CFG	158	=item %cf::CFG
111		159
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
113	from wherever your confdir points to.	161	from wherever your confdir points to.
114		162
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		164
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	166	returns directly I<after> the tick processing (and consequently, can only wake one process
119	processing has been done. Call C<< ->wait >> on them to maximise the	167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
120	window of cpu time available, or simply to synchronise to the server tick.
121		168
122	=back	169	=back
123		170
124	=cut	171	=cut
125		172
126	BEGIN {	173	BEGIN {
127	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
128	my $msg = join "", @_;	175	my $msg = join "", @_;
129	utf8::encode $msg;
130		176
131	$msg .= "\n"	177	$msg .= "\n"
132	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
133		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
134	LOG llevError, $msg;	183	LOG llevError, $msg;
135	};	184	};
136	}	185	}
137		186
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@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';
143	@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)
144		194
145	# 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
146	# within the Safe compartment.	196	# within the Safe compartment.
147	for my $pkg (qw(	197	for my $pkg (qw(
148	cf::global cf::attachable	198	cf::global cf::attachable
…		…
156	}	206	}
157		207
158	$Event::DIED = sub {	208	$Event::DIED = sub {
159	warn "error in event callback: @_";	209	warn "error in event callback: @_";
160	};	210	};
161
162	my %ext_pkg;
163	my @exts;
164	my @hook;
165		211
166	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
167		213
168	=over 4	214	=over 4
169		215
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	235	$d
190	} || "[unable to dump $_[0]: '$@']";	236	} || "[unable to dump $_[0]: '$@']";
191	}	237	}
192		238
193	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
194		240
195	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
196		242
197	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
198		244
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
207		246
208	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
209
210	=cut
211
212	sub to_json($) {
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
214	JSON::Syck::Dump $_[0]
215	}
216		248
217	=item cf::lock_wait $string	249	=item cf::lock_wait $string
218		250
219	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
220		252
…		…
226	returned.	258	returned.
227		259
228	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
229	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
230		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
231	=cut	267	=cut
232		268
233	our %LOCK;	269	our %LOCK;
234		270
235	sub lock_wait($) {	271	sub lock_wait($) {
…		…
254	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
256	}	292	}
257	}	293	}
258		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
259	sub freeze_mainloop {	301	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
261		303
262	my $guard = Coro::guard { $TICK_WATCHER->start };	304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
263	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
264	$guard	308	$guard
265	}	309	}
266		310
267	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
289		333
290	sub sync_job(&) {	334	sub sync_job(&) {
291	my ($job) = @_;	335	my ($job) = @_;
292		336
293	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
294	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
296		342
297	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
309		355
310	while ($busy) {	356	while ($busy) {
311	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
312	}	358	}
313		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
314	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
315	} else {	368	} else {
316	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
317		370
318	$job->()	371	$job->()
319	}	372	}
320	}	373	}
321		374
322	=item $coro = cf::async_ext { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
323		376
324	Like async, but this coro is automcatially being canceled when the	377	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	378	extension calling this is being unloaded.
326		379
327	=cut	380	=cut
328		381
329	sub async_ext(&) {	382	sub async_ext(&) {
…		…
338		391
339	$coro	392	$coro
340	}	393	}
341		394
342	sub write_runtime {	395	sub write_runtime {
343	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";
344		404
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
346	or return;	406	or return;
347		407
		408	my $value = $cf::RUNTIME + 90 + 10;
348	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
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;	413	and return;
351		414
		415	# always fsync - this file is important
352	aio_fsync $fh	416	aio_fsync $fh
353	and return;	417	and return;
354		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
355	close $fh	422	close $fh
356	or return;	423	or return;
357		424
358	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
359	and return;	426	and return;
360		427
		428	warn "runtime file written.\n";
		429
361	1	430	1
362	}	431	}
363		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
364	=back	444	=back
365		445
366	=cut	446	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489		447
490	#############################################################################	448	#############################################################################
491		449
492	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
493		451
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	578	our @CB_MAP = ();
621		579
622	my %attachment;	580	my %attachment;
623		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
624	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
626		590
627	use sort 'stable';	591	use sort 'stable';
628		592
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
663		627
664	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		632
669	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	634	my $pkg = shift @arg;
671		635
672	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
713	if (ref $_[0]) {	677	if (ref $_[0]) {
714	_object_attach @_;	678	_object_attach @_;
715	} else {	679	} else {
716	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
717	}	681	}
		682	_recalc_want;
718	};	683	};
719		684
720	# all those should be optimised	685	# all those should be optimised
721	sub cf::attachable::detach {	686	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
726	reattach ($obj);	691	reattach ($obj);
727	} else {	692	} else {
728	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
729	}	694	}
		695	_recalc_want;
730	};	696	};
731		697
732	sub cf::attachable::attached {	698	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
734		700
…		…
799	# object support	765	# object support
800		766
801	sub reattach {	767	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		772
805	my $registry = $obj->registry;	773	my $registry = $obj->registry;
806		774
807	@$registry = ();	775	@$registry = ();
808		776
…		…
855	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
856		824
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
860	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
861	close $fh;	829	close $fh;
862		830
863	if (@$objs) {	831	if (@$objs) {
864	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) {
865	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
868	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
869	close $fh;	837	close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
871	}	839	}
872	} else {	840	} else {
873	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
905	or return;	873	or return;
906	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
907	}	875	}
908		876
909	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
910	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
911	return ($data, $av);	879	return ($data, $av);
912	}	880	}
913		881
914	#############################################################################	882	#############################################################################
915	# command handling &c	883	# command handling &c
…		…
940	=cut	908	=cut
941		909
942	sub register_extcmd {	910	sub register_extcmd {
943	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
944		912
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
949	}	914	}
950		915
951	cf::player->attach (	916	cf::player->attach (
952	on_command => sub {	917	on_command => sub {
953	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
966		931
967	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
968		933
969	if (ref $msg) {	934	if (ref $msg) {
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
972	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
973	}	938	}
974	}	939	}
975	} else {	940	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
978		943
979	cf::override;	944	cf::override;
980	},	945	},
981	);	946	);
982		947
983	sub register {
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {	948	sub load_extension {
990	my ($path) = @_;	949	my ($path) = @_;
991		950
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
993	my $base = $1;	952	my $base = $1;
994	my $pkg = $1;	953	my $pkg = $1;
995	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
997		956
998	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
999		958
1000	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
1001	or die "$path: $!";	960	or die "$path: $!";
1002		961
1003	my $source =	962	my $source =
1004	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
1007	. "\n};\n1";	966	. "\n};\n1";
1008		967
1009	eval $source	968	unless (eval $source) {
1010	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
1011	: "extension disabled.\n";	970	: "extension disabled.\n";
1012		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1013	push @exts, $pkg;	972	warn $@;
1014	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
1015		974	exit 1;
1016	# no strict 'refs';	975	}
1017	# @{"$pkg\::ISA"} = ext::;	976	die $@;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }	977	}
1032		978
1033	# remove commands	979	push @EXTS, $pkg;
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}
1042	}
1043
1044	# remove extcmds
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}	980	}
1058		981
1059	sub load_extensions {	982	sub load_extensions {
1060	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	984	next unless -r $ext;
…		…
1065	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
1066	}	989	}
1067	}	990	}
1068		991
1069	#############################################################################	992	#############################################################################
1070	# load/save/clean perl data associated with a map
1071
1072	*cf::mapsupport::on_clean = sub {
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		993
1085	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1086		995
1087	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1088		997
…		…
1101	Returns the given player object, loading it if necessary (might block).	1010	Returns the given player object, loading it if necessary (might block).
1102		1011
1103	=cut	1012	=cut
1104		1013
1105	sub playerdir($) {	1014	sub playerdir($) {
1106	cf::localdir	1015	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1017	}
1112		1018
1113	sub path($) {	1019	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1021
1116	(playerdir $login) . "/$login.pl"	1022	(playerdir $login) . "/playerdata"
1117	}	1023	}
1118		1024
1119	sub find_active($) {	1025	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1026	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1027	and $cf::PLAYER{$_[0]}->active
…		…
1124		1030
1125	sub exists($) {	1031	sub exists($) {
1126	my ($login) = @_;	1032	my ($login) = @_;
1127		1033
1128	$cf::PLAYER{$login}	1034	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1035	or cf::sync_job { !aio_stat path $login }
1130	}	1036	}
1131		1037
1132	sub find($) {	1038	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1039	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1040	my $login = $_[0];
1135		1041
1136	my $guard = cf::lock_acquire "user_find:$login";	1042	my $guard = cf::lock_acquire "user_find:$login";
1137		1043
1138	$cf::PLAYER{$_[0]} || do {	1044	$cf::PLAYER{$_[0]} || do {
		1045	# rename old playerfiles to new ones
		1046	#TODO: remove when no longer required
		1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1050	aio_unlink +(playerdir $login) . "/$login.pl";
		1051
1139	my $pl = load_pl path $login	1052	my $pl = load_pl path $login
1140	or return;	1053	or return;
1141	$cf::PLAYER{$login} = $pl	1054	$cf::PLAYER{$login} = $pl
1142	}	1055	}
1143	}	1056	}
…		…
1180		1093
1181	=cut	1094	=cut
1182		1095
1183	sub quit_character {	1096	sub quit_character {
1184	my ($pl) = @_;	1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
1185		1100
1186	$pl->{deny_save} = 1;	1101	$pl->{deny_save} = 1;
1187	$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
1188		1103
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1194	my $path = playerdir $pl;	1109	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1110	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1111	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1112	delete $cf::PLAYER{$pl->ob->name};
1198	$pl->destroy;	1113	$pl->destroy;
		1114
		1115	my $prefix = qr<^~\Q$name\E/>;
		1116
		1117	# nuke player maps
		1118	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1119
1199	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;
1200	}	1135	}
1201		1136
1202	=item cf::player::list_logins	1137	=item cf::player::list_logins
1203		1138
1204	Returns am arrayref of all valid playernames in the system, can take a	1139	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1140	while and may block, so not sync_job-capable, ever.
1206		1141
1207	=cut	1142	=cut
1208		1143
1209	sub list_logins {	1144	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1145	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1146	or return [];
1212		1147
1213	my @logins;	1148	my @logins;
1214		1149
1215	for my $login (@$dirs) {	1150	for my $login (@$dirs) {
…		…
1224	\@logins	1159	\@logins
1225	}	1160	}
1226		1161
1227	=item $player->maps	1162	=item $player->maps
1228		1163
1229	Returns an arrayref of cf::path's of all maps that are private for this	1164	Returns an arrayref of map paths that are private for this
1230	player. May block.	1165	player. May block.
1231		1166
1232	=cut	1167	=cut
1233		1168
1234	sub maps($) {	1169	sub maps($) {
1235	my ($pl) = @_;	1170	my ($pl) = @_;
		1171
		1172	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1173
1237	my $files = aio_readdir playerdir $pl	1174	my $files = aio_readdir playerdir $pl
1238	or return;	1175	or return;
1239		1176
1240	my @paths;	1177	my @paths;
1241		1178
1242	for (@$files) {	1179	for (@$files) {
1243	utf8::decode $_;	1180	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1181	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1182	next unless /^$PATH_SEP/o;
1246		1183
1247	s/$PATH_SEP/\//g;	1184	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1185	}
1250		1186
1251	\@paths	1187	\@paths
1252	}	1188	}
1253		1189
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1255		1191
1256	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1257		1193
1258	=cut	1194	=cut
1259		1195
1260	sub ext_reply($$$%) {	1196	sub ext_reply($$%) {
1261	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1262		1198
1263	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1264		1200
1265	$self->send ("ext " . cf::to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
1266	}	1202	}
1267		1203
1268	package cf;	1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		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	}
1269		1244
1270	=back	1245	=back
1271
1272		1246
1273	=head3 cf::map	1247	=head3 cf::map
1274		1248
1275	=over 4	1249	=over 4
1276		1250
…		…
1279	package cf::map;	1253	package cf::map;
1280		1254
1281	use Fcntl;	1255	use Fcntl;
1282	use Coro::AIO;	1256	use Coro::AIO;
1283		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1284	our $MAX_RESET = 3600;	1262	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1263	our $DEFAULT_RESET = 3000;
1286		1264
1287	sub generate_random_map {	1265	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1268	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$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},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(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"
1304	}	1408	}
1305		1409
1306	# and all this just because we cannot iterate over	1410	# and all this just because we cannot iterate over
1307	# all maps in C++...	1411	# all maps in C++...
1308	sub change_all_map_light {	1412	sub change_all_map_light {
…		…
1310		1414
1311	$_->change_map_light ($change)	1415	$_->change_map_light ($change)
1312	for grep $_->outdoor, values %cf::MAP;	1416	for grep $_->outdoor, values %cf::MAP;
1313	}	1417	}
1314		1418
		1419	sub decay_objects {
		1420	my ($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
1315	sub try_load_header($) {	1435	sub load_header_from($) {
1316	my ($path) = @_;	1436	my ($self, $path) = @_;
1317		1437
1318	utf8::encode $path;	1438	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1439	#aio_open $path, O_RDONLY, 0
		1440	# or return;
		1441
		1442	$self->_load_header ($path)
1320	or return;	1443	or return;
1321		1444
1322	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
1323	or return;	1488	or return;
		1489	$self->prepare_orig;
		1490	}
1324		1491
1325	# for better error messages only, will be overwritten	1492	$self->{deny_reset} = 1
1326	$map->path ($path);	1493	if $self->no_reset;
1327		1494
1328	$map->load_header ($path)	1495	$self->default_region (cf::region::find_by_path $self->{path})
1329	or return;	1496	unless $self->default_region;
1330		1497
1331	$map->{load_path} = $path;	1498	1
1332
1333	$map
1334	}	1499	}
1335		1500
1336	sub find;	1501	sub find;
1337	sub find {	1502	sub find {
1338	my ($path, $origin) = @_;	1503	my ($path, $origin) = @_;
1339		1504
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	1505	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		1506
1345	cf::lock_wait "map_find:$key";	1507	cf::lock_wait "map_find:$path";
1346		1508
1347	$cf::MAP{$key} || do {	1509	$cf::MAP{$path} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	1510	my $guard = cf::lock_acquire "map_find:$path";
1349		1511	my $map = new_from_path cf::map $path
1350	# do it the slow way
1351	my $map = try_load_header $path->save_path;
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	1512	or return;
1369		1513
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	1514	$map->{last_save} = $cf::RUNTIME;
1382		1515
1383	Coro::cede;	1516	$map->load_header
		1517	or return;
1384		1518
1385	if ($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;
1386	$map->reset;	1522	$map->reset;
1387	undef $guard;	1523	undef $guard;
1388	$map = find $path	1524	return find $path;
1389	or return;
1390	}	1525	}
1391		1526
1392	$cf::MAP{$key} = $map	1527	$cf::MAP{$path} = $map
1393	}	1528	}
1394	}	1529	}
		1530
		1531	sub pre_load { }
		1532	sub post_load { }
1395		1533
1396	sub load {	1534	sub load {
1397	my ($self) = @_;	1535	my ($self) = @_;
1398		1536
		1537	local $self->{deny_reset} = 1; # loading can take a long time
		1538
1399	my $path = $self->{path};	1539	my $path = $self->{path};
		1540
		1541	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1542	my $guard = cf::lock_acquire "map_load:$path";
1401		1543
1402	return if $self->in_memory != cf::MAP_SWAPPED;	1544	return if $self->in_memory != cf::MAP_SWAPPED;
1403		1545
1404	$self->in_memory (cf::MAP_LOADING);	1546	$self->in_memory (cf::MAP_LOADING);
1405		1547
1406	$self->alloc;	1548	$self->alloc;
		1549
		1550	$self->pre_load;
		1551	Coro::cede;
		1552
1407	$self->load_objects ($self->{load_path}, 1)	1553	$self->_load_objects ($self->{load_path}, 1)
1408	or return;	1554	or return;
1409		1555
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1411	if delete $self->{load_original};	1557	if delete $self->{load_original};
1412		1558
1413	if (my $uniq = $path->uniq_path) {	1559	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	1560	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	1561	if (aio_open $uniq, O_RDONLY, 0) {
1416	$self->clear_unique_items;	1562	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	1563	$self->_load_objects ($uniq, 0);
1418	}	1564	}
1419	}	1565	}
1420		1566
1421	Coro::cede;	1567	Coro::cede;
1422
1423	# now do the right thing for maps	1568	# now do the right thing for maps
1424	$self->link_multipart_objects;	1569	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	1570	$self->difficulty ($self->estimate_difficulty)
1435	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;
1436	$self->activate;	1581	$self->activate;
1437	}	1582	}
1438		1583
1439	Coro::cede;
1440
1441	$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	$neigh->load;
		1623	}
1442	}	1624	}
1443		1625
1444	sub find_sync {	1626	sub find_sync {
1445	my ($path, $origin) = @_;	1627	my ($path, $origin) = @_;
1446		1628
1447	cf::sync_job { cf::map::find $path, $origin }	1629	cf::sync_job { find $path, $origin }
1448	}	1630	}
1449		1631
1450	sub do_load_sync {	1632	sub do_load_sync {
1451	my ($map) = @_;	1633	my ($map) = @_;
1452		1634
1453	cf::sync_job { $map->load };	1635	cf::sync_job { $map->load };
1454	}	1636	}
1455		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	$MAP_PREFETCHER->prio (6);
		1664
		1665	()
		1666	}
		1667
1456	sub save {	1668	sub save {
1457	my ($self) = @_;	1669	my ($self) = @_;
1458		1670
1459	my $lock = cf::lock_acquire "map_data:" . $self->path;	1671	my $lock = cf::lock_acquire "map_data:" . $self->path;
1460		1672
1461	$self->{last_save} = $cf::RUNTIME;	1673	$self->{last_save} = $cf::RUNTIME;
1462		1674
1463	return unless $self->dirty;	1675	return unless $self->dirty;
1464		1676
1465	my $save = $self->{path}->save_path; utf8::encode $save;	1677	my $save = $self->save_path; utf8::encode $save;
1466	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
1467		1679
1468	$self->{load_path} = $save;	1680	$self->{load_path} = $save;
1469		1681
1470	return if $self->{deny_save};	1682	return if $self->{deny_save};
1471		1683
…		…
1474	cf::async {	1686	cf::async {
1475	$_->contr->save for $self->players;	1687	$_->contr->save for $self->players;
1476	};	1688	};
1477		1689
1478	if ($uniq) {	1690	if ($uniq) {
1479	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1691	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1480	$self->save_objects ($uniq, cf::IO_UNIQUES);	1692	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1481	} else {	1693	} else {
1482	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1694	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1483	}	1695	}
1484	}	1696	}
1485		1697
1486	sub swap_out {	1698	sub swap_out {
1487	my ($self) = @_;	1699	my ($self) = @_;
…		…
1501		1713
1502	sub reset_at {	1714	sub reset_at {
1503	my ($self) = @_;	1715	my ($self) = @_;
1504		1716
1505	# TODO: safety, remove and allow resettable per-player maps	1717	# TODO: safety, remove and allow resettable per-player maps
1506	return 1e99 if $self->{path}{user_rel};
1507	return 1e99 if $self->{deny_reset};	1718	return 1e99 if $self->{deny_reset};
1508		1719
1509	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1720	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1510	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1721	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1511		1722
…		…
1516	my ($self) = @_;	1727	my ($self) = @_;
1517		1728
1518	$self->reset_at <= $cf::RUNTIME	1729	$self->reset_at <= $cf::RUNTIME
1519	}	1730	}
1520		1731
1521	sub unlink_save {
1522	my ($self) = @_;
1523
1524	utf8::encode (my $save = $self->{path}->save_path);
1525	aioreq_pri 3; IO::AIO::aio_unlink $save;
1526	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1527	}
1528
1529	sub rename {
1530	my ($self, $new_path) = @_;
1531
1532	$self->unlink_save;
1533
1534	delete $cf::MAP{$self->path};
1535	$self->{path} = new cf::path $new_path;
1536	$self->path ($self->{path}->as_string);
1537	$cf::MAP{$self->path} = $self;
1538
1539	$self->save;
1540	}
1541
1542	sub reset {	1732	sub reset {
1543	my ($self) = @_;	1733	my ($self) = @_;
1544		1734
1545	my $lock = cf::lock_acquire "map_data:" . $self->path;	1735	my $lock = cf::lock_acquire "map_data:$self->{path}";
1546		1736
1547	return if $self->players;	1737	return if $self->players;
1548	return if $self->{path}{user_rel};#d#
1549		1738
1550	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	}
1551		1750
1552	delete $cf::MAP{$self->path};	1751	delete $cf::MAP{$self->path};
		1752
		1753	$self->clear;
1553		1754
1554	$_->clear_links_to ($self) for values %cf::MAP;	1755	$_->clear_links_to ($self) for values %cf::MAP;
1555		1756
1556	$self->unlink_save;	1757	$self->unlink_save;
1557	$self->destroy;	1758	$self->destroy;
…		…
1560	my $nuke_counter = "aaaa";	1761	my $nuke_counter = "aaaa";
1561		1762
1562	sub nuke {	1763	sub nuke {
1563	my ($self) = @_;	1764	my ($self) = @_;
1564		1765
		1766	delete $cf::MAP{$self->path};
		1767
		1768	$self->unlink_save;
		1769
		1770	bless $self, "cf::map";
		1771	delete $self->{deny_reset};
1565	$self->{deny_save} = 1;	1772	$self->{deny_save} = 1;
1566	$self->reset_timeout (1);	1773	$self->reset_timeout (1);
1567	$self->rename ("{nuke}/" . ($nuke_counter++));	1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1775
		1776	$cf::MAP{$self->path} = $self;
		1777
1568	$self->reset; # polite request, might not happen	1778	$self->reset; # polite request, might not happen
1569	}	1779	}
1570		1780
1571	sub customise_for {	1781	=item $maps = cf::map::tmp_maps
1572	my ($map, $ob) = @_;
1573		1782
1574	if ($map->per_player) {	1783	Returns an arrayref with all map paths of currently instantiated and saved
1575	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1784	maps.
		1785
		1786	=cut
		1787
		1788	sub tmp_maps() {
1576	}	1789	[
		1790	map {
		1791	utf8::decode $_;
		1792	!/\.(?:pst|meta)$/ && /^$PATH_SEP/o
		1793	? normalise $_
		1794	: ()
		1795	} @{ aio_readdir $TMPDIR or [] }
		1796	]
		1797	}
1577		1798
1578	$map	1799	=item cf::map::unique_maps
		1800
		1801	Returns an arrayref of paths of all shared maps that have
		1802	instantiated unique items. May block.
		1803
		1804	=cut
		1805
		1806	sub unique_maps() {
		1807	[
		1808	map {
		1809	utf8::decode $_;
		1810	!/\.(?:pst|meta)$/ && /^$PATH_SEP/o
		1811	? normalise $_
		1812	: ()
		1813	} @{ aio_readdir $UNIQUEDIR or [] }
		1814	]
1579	}	1815	}
1580		1816
1581	package cf;	1817	package cf;
1582		1818
1583	=back	1819	=back
…		…
1655		1891
1656	=item $player_object->enter_link	1892	=item $player_object->enter_link
1657		1893
1658	Freezes the player and moves him/her to a special map (C<{link}>).	1894	Freezes the player and moves him/her to a special map (C<{link}>).
1659		1895
1660	The player should be reaosnably safe there for short amounts of time. You	1896	The player should be reasonably safe there for short amounts of time. You
1661	I<MUST> call C<leave_link> as soon as possible, though.	1897	I<MUST> call C<leave_link> as soon as possible, though.
1662		1898
		1899	Will never block.
		1900
1663	=item $player_object->leave_link ($map, $x, $y)	1901	=item $player_object->leave_link ($map, $x, $y)
1664		1902
1665	Moves the player out of the specila link map onto the given map. If the	1903	Moves the player out of the special C<{link}> map onto the specified
1666	map is not valid (or omitted), the player will be moved back to the	1904	map. If the map is not valid (or omitted), the player will be moved back
1667	location he/she was before the call to C<enter_link>, or, if that fails,	1905	to the location he/she was before the call to C<enter_link>, or, if that
1668	to the emergency map position.	1906	fails, to the emergency map position.
1669		1907
1670	Might block.	1908	Might block.
1671		1909
1672	=cut	1910	=cut
		1911
		1912	sub link_map {
		1913	unless ($LINK_MAP) {
		1914	$LINK_MAP = cf::map::find "{link}"
		1915	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1916	$LINK_MAP->load;
		1917	}
		1918
		1919	$LINK_MAP
		1920	}
1673		1921
1674	sub cf::object::player::enter_link {	1922	sub cf::object::player::enter_link {
1675	my ($self) = @_;	1923	my ($self) = @_;
1676		1924
1677	$self->deactivate_recursive;	1925	$self->deactivate_recursive;
1678		1926
1679	return if $self->map == $LINK_MAP;	1927	return if UNIVERSAL::isa $self->map, "ext::map_link";
1680		1928
1681	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1929	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1682	if $self->map;	1930	if $self->map && $self->map->{path} ne "{link}";
1683		1931
1684	$self->enter_map ($LINK_MAP, 20, 20);	1932	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1685	}	1933	}
1686		1934
1687	sub cf::object::player::leave_link {	1935	sub cf::object::player::leave_link {
1688	my ($self, $map, $x, $y) = @_;	1936	my ($self, $map, $x, $y) = @_;
		1937
		1938	return unless $self->contr->active;
1689		1939
1690	my $link_pos = delete $self->{_link_pos};	1940	my $link_pos = delete $self->{_link_pos};
1691		1941
1692	unless ($map) {	1942	unless ($map) {
1693	# restore original map position	1943	# restore original map position
…		…
1707	# use -1 or undef as default coordinates, not 0, 0	1957	# use -1 or undef as default coordinates, not 0, 0
1708	($x, $y) = ($map->enter_x, $map->enter_y)	1958	($x, $y) = ($map->enter_x, $map->enter_y)
1709	if $x <=0 && $y <= 0;	1959	if $x <=0 && $y <= 0;
1710		1960
1711	$map->load;	1961	$map->load;
		1962	$map->load_diag;
1712		1963
1713	return unless $self->contr->active;	1964	return unless $self->contr->active;
1714	$self->activate_recursive;	1965	$self->activate_recursive;
		1966
		1967	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1715	$self->enter_map ($map, $x, $y);	1968	$self->enter_map ($map, $x, $y);
1716	}	1969	}
1717		1970
1718	cf::player->attach (
1719	on_logout => sub {
1720	my ($pl) = @_;
1721
1722	# abort map switching before logout
1723	if ($pl->ob->{_link_pos}) {
1724	cf::sync_job {
1725	$pl->ob->leave_link
1726	};
1727	}
1728	},
1729	on_login => sub {
1730	my ($pl) = @_;
1731
1732	# try to abort aborted map switching on player login :)
1733	# should happen only on crashes
1734	if ($pl->ob->{_link_pos}) {
1735	$pl->ob->enter_link;
1736	(async {
1737	# we need this sleep as the login has a concurrent enter_exit running
1738	# and this sleep increases chances of the player not ending up in scorn
1739	$pl->ob->reply (undef,
1740	"There was an internal problem at your last logout, "
1741	. "the server will try to bring you to your intended destination in a second.",
1742	cf::NDI_RED);
1743	Coro::Timer::sleep 1;
1744	$pl->ob->leave_link;
1745	})->prio (2);
1746	}
1747	},
1748	);
1749
1750	=item $player_object->goto ($path, $x, $y)	1971	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1751		1972
		1973	Moves the player to the given map-path and coordinates by first freezing
		1974	her, loading and preparing them map, calling the provided $check callback
		1975	that has to return the map if sucecssful, and then unfreezes the player on
		1976	the new (success) or old (failed) map position.
		1977
1752	=cut	1978	=cut
		1979
		1980	our $GOTOGEN;
1753		1981
1754	sub cf::object::player::goto {	1982	sub cf::object::player::goto {
1755	my ($self, $path, $x, $y) = @_;	1983	my ($self, $path, $x, $y, $check) = @_;
1756		1984
1757	$path = new cf::path $path;	1985	# do generation counting so two concurrent goto's will be executed in-order
1758	$path ne "/" or Carp::cluck ("oy");#d#	1986	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1759		1987
1760	$self->enter_link;	1988	$self->enter_link;
1761		1989
1762	(async {	1990	(async {
		1991	my $map = eval {
1763	my $map = cf::map::find $path->as_string;	1992	my $map = cf::map::find $path;
		1993
		1994	if ($map) {
1764	$map = $map->customise_for ($self) if $map;	1995	$map = $map->customise_for ($self);
1765		1996	$map = $check->($map) if $check && $map;
1766	# warn "entering ", $map->path, " at ($x, $y)\n"	1997	} else {
1767	# if $map;
1768
1769	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1998	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1999	}
1770		2000
		2001	$map
		2002	};
		2003
		2004	if ($@) {
		2005	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2006	LOG llevError | logBacktrace, Carp::longmess $@;
		2007	}
		2008
		2009	if ($gen == $self->{_goto_generation}) {
		2010	delete $self->{_goto_generation};
1771	$self->leave_link ($map, $x, $y);	2011	$self->leave_link ($map, $x, $y);
		2012	}
1772	})->prio (1);	2013	})->prio (1);
1773	}	2014	}
1774		2015
1775	=item $player_object->enter_exit ($exit_object)	2016	=item $player_object->enter_exit ($exit_object)
1776		2017
…		…
1778		2019
1779	sub parse_random_map_params {	2020	sub parse_random_map_params {
1780	my ($spec) = @_;	2021	my ($spec) = @_;
1781		2022
1782	my $rmp = { # defaults	2023	my $rmp = { # defaults
1783	xsize => 10,	2024	xsize => (cf::rndm 15, 40),
1784	ysize => 10,	2025	ysize => (cf::rndm 15, 40),
		2026	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2027	#layout => string,
1785	};	2028	};
1786		2029
1787	for (split /\n/, $spec) {	2030	for (split /\n/, $spec) {
1788	my ($k, $v) = split /\s+/, $_, 2;	2031	my ($k, $v) = split /\s+/, $_, 2;
1789		2032
…		…
1793	$rmp	2036	$rmp
1794	}	2037	}
1795		2038
1796	sub prepare_random_map {	2039	sub prepare_random_map {
1797	my ($exit) = @_;	2040	my ($exit) = @_;
		2041
		2042	my $guard = cf::lock_acquire "exit_prepare:$exit";
1798		2043
1799	# all this does is basically replace the /! path by	2044	# all this does is basically replace the /! path by
1800	# a new random map path (?random/...) with a seed	2045	# a new random map path (?random/...) with a seed
1801	# that depends on the exit object	2046	# that depends on the exit object
1802		2047
1803	my $rmp = parse_random_map_params $exit->msg;	2048	my $rmp = parse_random_map_params $exit->msg;
1804		2049
1805	if ($exit->map) {	2050	if ($exit->map) {
1806	$rmp->{region} = $exit->map->region_name;	2051	$rmp->{region} = $exit->region->name;
1807	$rmp->{origin_map} = $exit->map->path;	2052	$rmp->{origin_map} = $exit->map->path;
1808	$rmp->{origin_x} = $exit->x;	2053	$rmp->{origin_x} = $exit->x;
1809	$rmp->{origin_y} = $exit->y;	2054	$rmp->{origin_y} = $exit->y;
1810	}	2055	}
1811		2056
1812	$rmp->{random_seed} ||= $exit->random_seed;	2057	$rmp->{random_seed} ||= $exit->random_seed;
1813		2058
1814	my $data = cf::to_json $rmp;	2059	my $data = cf::to_json $rmp;
1815	my $md5 = Digest::MD5::md5_hex $data;	2060	my $md5 = Digest::MD5::md5_hex $data;
		2061	my $meta = "$RANDOMDIR/$md5.meta";
1816		2062
1817	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2063	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1818	aio_write $fh, 0, (length $data), $data, 0;	2064	aio_write $fh, 0, (length $data), $data, 0;
		2065	undef $fh;
		2066	aio_rename "$meta~", $meta;
1819		2067
1820	$exit->slaying ("?random/$md5");	2068	$exit->slaying ("?random/$md5");
1821	$exit->msg (undef);	2069	$exit->msg (undef);
1822	}	2070	}
1823	}	2071	}
1824		2072
1825	sub cf::object::player::enter_exit {	2073	sub cf::object::player::enter_exit {
1826	my ($self, $exit) = @_;	2074	my ($self, $exit) = @_;
1827		2075
1828	return unless $self->type == cf::PLAYER;	2076	return unless $self->type == cf::PLAYER;
		2077
		2078	if ($exit->slaying eq "/!") {
		2079	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2080	# the problem is that $exit might not survive long enough
		2081	# so it needs to be done right now, right here
		2082	cf::sync_job { prepare_random_map $exit };
		2083	}
		2084
		2085	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2086	my $hp = $exit->stats->hp;
		2087	my $sp = $exit->stats->sp;
1829		2088
1830	$self->enter_link;	2089	$self->enter_link;
1831		2090
1832	(async {	2091	(async {
1833	$self->deactivate_recursive; # just to be sure	2092	$self->deactivate_recursive; # just to be sure
1834	unless (eval {	2093	unless (eval {
1835	prepare_random_map $exit	2094	$self->goto ($slaying, $hp, $sp);
1836	if $exit->slaying eq "/!";
1837
1838	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1839	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1840		2095
1841	1;	2096	1;
1842	}) {	2097	}) {
1843	$self->message ("Something went wrong deep within the crossfire server. "	2098	$self->message ("Something went wrong deep within the crossfire server. "
1844	. "I'll try to bring you back to the map you were before. "	2099	. "I'll try to bring you back to the map you were before. "
1845	. "Please report this to the dungeon master",	2100	. "Please report this to the dungeon master!",
1846	cf::NDI_UNIQUE | cf::NDI_RED);	2101	cf::NDI_UNIQUE | cf::NDI_RED);
1847		2102
1848	warn "ERROR in enter_exit: $@";	2103	warn "ERROR in enter_exit: $@";
1849	$self->leave_link;	2104	$self->leave_link;
1850	}	2105	}
1851	})->prio (1);	2106	})->prio (1);
…		…
1864		2119
1865	sub cf::client::send_drawinfo {	2120	sub cf::client::send_drawinfo {
1866	my ($self, $text, $flags) = @_;	2121	my ($self, $text, $flags) = @_;
1867		2122
1868	utf8::encode $text;	2123	utf8::encode $text;
1869	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2124	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1870	}	2125	}
1871		2126
		2127	=item $client->ext_event ($type, %msg)
		2128
		2129	Sends an exti event to the client.
		2130
		2131	=cut
		2132
		2133	sub cf::client::ext_event($$%) {
		2134	my ($self, $type, %msg) = @_;
		2135
		2136	$msg{msgtype} = "event_$type";
		2137	$self->send_packet ("ext " . cf::to_json \%msg);
		2138	}
1872		2139
1873	=item $success = $client->query ($flags, "text", \&cb)	2140	=item $success = $client->query ($flags, "text", \&cb)
1874		2141
1875	Queues a query to the client, calling the given callback with	2142	Queues a query to the client, calling the given callback with
1876	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2143	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1905	# get handled first	2172	# get handled first
1906	my $queue = delete $ns->{query_queue}	2173	my $queue = delete $ns->{query_queue}
1907	or return; # be conservative, not sure how that can happen, but we saw a crash here	2174	or return; # be conservative, not sure how that can happen, but we saw a crash here
1908		2175
1909	(shift @$queue)->[1]->($msg);	2176	(shift @$queue)->[1]->($msg);
		2177	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1910		2178
1911	push @{ $ns->{query_queue} }, @$queue;	2179	push @{ $ns->{query_queue} }, @$queue;
1912		2180
1913	if (@{ $ns->{query_queue} } == @$queue) {	2181	if (@{ $ns->{query_queue} } == @$queue) {
1914	if (@$queue) {	2182	if (@$queue) {
…		…
1972		2240
1973	# here we export the classes and methods available to script code	2241	# here we export the classes and methods available to script code
1974		2242
1975	=pod	2243	=pod
1976		2244
1977	The following fucntions and emthods are available within a safe environment:	2245	The following functions and methods are available within a safe environment:
1978		2246
1979	cf::object contr pay_amount pay_player map	2247	cf::object contr pay_amount pay_player map
1980	cf::object::player player	2248	cf::object::player player
1981	cf::player peaceful	2249	cf::player peaceful
1982	cf::map trigger	2250	cf::map trigger
…		…
2067	#############################################################################	2335	#############################################################################
2068		2336
2069	=head2 EXTENSION DATABASE SUPPORT	2337	=head2 EXTENSION DATABASE SUPPORT
2070		2338
2071	Crossfire maintains a very simple database for extension use. It can	2339	Crossfire maintains a very simple database for extension use. It can
2072	currently store anything that can be serialised using Storable, which	2340	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2073	excludes objects.	2341	convert to/from binary).
2074		2342
2075	The parameter C<$family> should best start with the name of the extension	2343	The parameter C<$family> should best start with the name of the extension
2076	using it, it should be unique.	2344	using it, it should be unique.
2077		2345
2078	=over 4	2346	=over 4
2079		2347
2080	=item $hashref = cf::db_get $family
2081
2082	Return a hashref for use by the extension C<$family>, which can be
2083	modified. After modifications, you have to call C<cf::db_dirty> or
2084	C<cf::db_sync>.
2085
2086	=item $value = cf::db_get $family => $key	2348	=item $value = cf::db_get $family => $key
2087		2349
2088	Returns a single value from the database	2350	Returns a single value from the database.
2089
2090	=item cf::db_put $family => $hashref
2091
2092	Stores the given family hashref into the database. Updates are delayed, if
2093	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2094		2351
2095	=item cf::db_put $family => $key => $value	2352	=item cf::db_put $family => $key => $value
2096		2353
2097	Stores the given C<$value> in the family hash. Updates are delayed, if you	2354	Stores the given C<$value> in the family.
2098	want the data to be synced to disk immediately, use C<cf::db_sync>.
2099
2100	=item cf::db_dirty
2101
2102	Marks the database as dirty, to be updated at a later time.
2103
2104	=item cf::db_sync
2105
2106	Immediately write the database to disk I<if it is dirty>.
2107		2355
2108	=cut	2356	=cut
2109		2357
2110	our $DB;	2358	our $DB;
2111		2359
2112	{	2360	sub db_init {
2113	my $path = cf::localdir . "/database.pst";	2361	unless ($DB) {
		2362	$DB = BDB::db_create $DB_ENV;
2114		2363
2115	sub db_load() {	2364	cf::sync_job {
2116	$DB = stat $path ? Storable::retrieve $path : { };	2365	eval {
2117	}	2366	$DB->set_flags (BDB::CHKSUM);
2118		2367
2119	my $pid;	2368	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2120		2369	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2121	sub db_save() {	2370	cf::cleanup "db_open(db): $!" if $!;
2122	waitpid $pid, 0 if $pid;	2371	};
2123	if (0 == ($pid = fork)) {	2372	cf::cleanup "db_open(db): $@" if $@;
2124	$DB->{_meta}{version} = 1;
2125	Storable::nstore $DB, "$path~";
2126	rename "$path~", $path;
2127	cf::_exit 0 if defined $pid;
2128	}	2373	};
2129	}
2130
2131	my $dirty;
2132
2133	sub db_sync() {
2134	db_save if $dirty;
2135	undef $dirty;
2136	}
2137
2138	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2139	db_sync;
2140	});	2374	}
		2375	}
2141		2376
2142	sub db_dirty() {
2143	$dirty = 1;
2144	$idle->start;
2145	}
2146
2147	sub db_get($;$) {	2377	sub db_get($$) {
2148	@_ >= 2	2378	my $key = "$_[0]/$_[1]";
2149	? $DB->{$_[0]}{$_[1]}
2150	: ($DB->{$_[0]} ||= { })
2151	}
2152		2379
		2380	cf::sync_job {
		2381	BDB::db_get $DB, undef, $key, my $data;
		2382
		2383	$! ? ()
		2384	: $data
		2385	}
		2386	}
		2387
2153	sub db_put($$;$) {	2388	sub db_put($$$) {
2154	if (@_ >= 3) {	2389	BDB::dbreq_pri 4;
2155	$DB->{$_[0]}{$_[1]} = $_[2];	2390	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2156	} else {	2391	}
2157	$DB->{$_[0]} = $_[1];
2158	}
2159	db_dirty;
2160	}
2161		2392
2162	cf::global->attach (	2393	=item cf::cache $id => [$paths...], $processversion => $process
2163	prio => 10000,	2394
2164	on_cleanup => sub {	2395	Generic caching function that returns the value of the resource $id,
2165	db_sync;	2396	caching and regenerating as required.
		2397
		2398	This function can block.
		2399
		2400	=cut
		2401
		2402	sub cache {
		2403	my ($id, $src, $processversion, $process) = @_;
		2404
		2405	my $meta =
		2406	join "\x00",
		2407	$processversion,
		2408	map {
		2409	aio_stat $_
		2410	and Carp::croak "$_: $!";
		2411
		2412	($_, (stat _)[7,9])
		2413	} @$src;
		2414
		2415	my $dbmeta = db_get cache => "$id/meta";
		2416	if ($dbmeta ne $meta) {
		2417	# changed, we may need to process
		2418
		2419	my @data;
		2420	my $md5;
		2421
		2422	for (0 .. $#$src) {
		2423	0 <= aio_load $src->[$_], $data[$_]
		2424	or Carp::croak "$src->[$_]: $!";
2166	},	2425	}
2167	);	2426
		2427	# if processing is expensive, check
		2428	# checksum first
		2429	if (1) {
		2430	$md5 =
		2431	join "\x00",
		2432	$processversion,
		2433	map {
		2434	Coro::cede;
		2435	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2436	} 0.. $#$src;
		2437
		2438
		2439	my $dbmd5 = db_get cache => "$id/md5";
		2440	if ($dbmd5 eq $md5) {
		2441	db_put cache => "$id/meta", $meta;
		2442
		2443	return db_get cache => "$id/data";
		2444	}
		2445	}
		2446
		2447	my $t1 = Time::HiRes::time;
		2448	my $data = $process->(\@data);
		2449	my $t2 = Time::HiRes::time;
		2450
		2451	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2452
		2453	db_put cache => "$id/data", $data;
		2454	db_put cache => "$id/md5" , $md5;
		2455	db_put cache => "$id/meta", $meta;
		2456
		2457	return $data;
		2458	}
		2459
		2460	db_get cache => "$id/data"
		2461	}
		2462
		2463	=item fork_call { }, $args
		2464
		2465	Executes the given code block with the given arguments in a seperate
		2466	process, returning the results. Everything must be serialisable with
		2467	Coro::Storable. May, of course, block. Note that the executed sub may
		2468	never block itself or use any form of Event handling.
		2469
		2470	=cut
		2471
		2472	sub fork_call(&@) {
		2473	my ($cb, @args) = @_;
		2474
		2475	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2476	# or die "socketpair: $!";
		2477	pipe my $fh1, my $fh2
		2478	or die "pipe: $!";
		2479
		2480	if (my $pid = fork) {
		2481	close $fh2;
		2482
		2483	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2484	$res = Coro::Storable::thaw $res;
		2485
		2486	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2487
		2488	die $$res unless "ARRAY" eq ref $res;
		2489
		2490	return wantarray ? @$res : $res->[-1];
		2491	} else {
		2492	reset_signals;
		2493	local $SIG{__WARN__};
		2494	local $SIG{__DIE__};
		2495	eval {
		2496	close $fh1;
		2497
		2498	my @res = eval { $cb->(@args) };
		2499	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2500	};
		2501
		2502	warn $@ if $@;
		2503	_exit 0;
		2504	}
2168	}	2505	}
2169		2506
2170	#############################################################################	2507	#############################################################################
2171	# the server's main()	2508	# the server's init and main functions
		2509
		2510	sub load_facedata($) {
		2511	my ($path) = @_;
		2512
		2513	warn "loading facedata from $path\n";
		2514
		2515	my $facedata;
		2516	0 < aio_load $path, $facedata
		2517	or die "$path: $!";
		2518
		2519	$facedata = Coro::Storable::thaw $facedata;
		2520
		2521	$facedata->{version} == 2
		2522	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2523
		2524	{
		2525	my $faces = $facedata->{faceinfo};
		2526
		2527	while (my ($face, $info) = each %$faces) {
		2528	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2529	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2530	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2531	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2532	Coro::cede;
		2533	}
		2534
		2535	while (my ($face, $info) = each %$faces) {
		2536	next unless $info->{smooth};
		2537	my $idx = cf::face::find $face
		2538	or next;
		2539	if (my $smooth = cf::face::find $info->{smooth}) {
		2540	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2541	} else {
		2542	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2543	}
		2544	Coro::cede;
		2545	}
		2546	}
		2547
		2548	{
		2549	my $anims = $facedata->{animinfo};
		2550
		2551	while (my ($anim, $info) = each %$anims) {
		2552	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2553	Coro::cede;
		2554	}
		2555
		2556	cf::anim::invalidate_all; # d'oh
		2557	}
		2558
		2559	1
		2560	}
		2561
		2562	sub reload_regions {
		2563	load_resource_file "$MAPDIR/regions"
		2564	or die "unable to load regions file\n";
		2565	}
		2566
		2567	sub reload_facedata {
		2568	load_facedata "$DATADIR/facedata"
		2569	or die "unable to load facedata\n";
		2570	}
		2571
		2572	sub reload_archetypes {
		2573	load_resource_file "$DATADIR/archetypes"
		2574	or die "unable to load archetypes\n";
		2575	}
		2576
		2577	sub reload_treasures {
		2578	load_resource_file "$DATADIR/treasures"
		2579	or die "unable to load treasurelists\n";
		2580	}
		2581
		2582	sub reload_resources {
		2583	warn "reloading resource files...\n";
		2584
		2585	reload_regions;
		2586	reload_facedata;
		2587	#reload_archetypes;#d#
		2588	reload_archetypes;
		2589	reload_treasures;
		2590
		2591	warn "finished reloading resource files\n";
		2592	}
		2593
		2594	sub init {
		2595	reload_resources;
		2596	}
2172		2597
2173	sub cfg_load {	2598	sub cfg_load {
2174	open my $fh, "<:utf8", cf::confdir . "/config"	2599	open my $fh, "<:utf8", "$CONFDIR/config"
2175	or return;	2600	or return;
2176		2601
2177	local $/;	2602	local $/;
2178	*CFG = YAML::Syck::Load <$fh>;	2603	*CFG = YAML::Syck::Load <$fh>;
2179		2604
…		…
2193		2618
2194	sub main {	2619	sub main {
2195	# we must not ever block the main coroutine	2620	# we must not ever block the main coroutine
2196	local $Coro::idle = sub {	2621	local $Coro::idle = sub {
2197	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2622	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2623	(async {
2198	async { Event::one_event };	2624	Event::one_event;
		2625	})->prio (Coro::PRIO_MAX);
2199	};	2626	};
2200		2627
2201	cfg_load;	2628	cfg_load;
2202	db_load;	2629	db_init;
2203	load_extensions;	2630	load_extensions;
		2631
		2632	$TICK_WATCHER->start;
2204	Event::loop;	2633	Event::loop;
2205	}	2634	}
2206		2635
2207	#############################################################################	2636	#############################################################################
2208	# initialisation and cleanup	2637	# initialisation and cleanup
2209		2638
2210	# install some emergency cleanup handlers	2639	# install some emergency cleanup handlers
2211	BEGIN {	2640	BEGIN {
2212	for my $signal (qw(INT HUP TERM)) {	2641	for my $signal (qw(INT HUP TERM)) {
2213	Event->signal (	2642	Event->signal (
		2643	reentrant => 0,
2214	data => WF_AUTOCANCEL,	2644	data => WF_AUTOCANCEL,
2215	signal => $signal,	2645	signal => $signal,
		2646	prio => 0,
2216	cb => sub {	2647	cb => sub {
2217	cf::cleanup "SIG$signal";	2648	cf::cleanup "SIG$signal";
2218	},	2649	},
2219	);	2650	);
2220	}	2651	}
2221	}	2652	}
…		…
2226	warn "enter emergency perl save\n";	2657	warn "enter emergency perl save\n";
2227		2658
2228	cf::sync_job {	2659	cf::sync_job {
2229	# use a peculiar iteration method to avoid tripping on perl	2660	# use a peculiar iteration method to avoid tripping on perl
2230	# refcount bugs in for. also avoids problems with players	2661	# refcount bugs in for. also avoids problems with players
2231	# and maps saved/Destroyed asynchronously.	2662	# and maps saved/destroyed asynchronously.
2232	warn "begin emergency player save\n";	2663	warn "begin emergency player save\n";
2233	for my $login (keys %cf::PLAYER) {	2664	for my $login (keys %cf::PLAYER) {
2234	my $pl = $cf::PLAYER{$login} or next;	2665	my $pl = $cf::PLAYER{$login} or next;
2235	$pl->valid or next;	2666	$pl->valid or next;
2236	$pl->save;	2667	$pl->save;
…		…
2242	my $map = $cf::MAP{$path} or next;	2673	my $map = $cf::MAP{$path} or next;
2243	$map->valid or next;	2674	$map->valid or next;
2244	$map->save;	2675	$map->save;
2245	}	2676	}
2246	warn "end emergency map save\n";	2677	warn "end emergency map save\n";
		2678
		2679	warn "begin emergency database checkpoint\n";
		2680	BDB::db_env_txn_checkpoint $DB_ENV;
		2681	warn "end emergency database checkpoint\n";
2247	};	2682	};
2248		2683
2249	warn "leave emergency perl save\n";	2684	warn "leave emergency perl save\n";
2250	}	2685	}
2251		2686
		2687	sub post_cleanup {
		2688	my ($make_core) = @_;
		2689
		2690	warn Carp::longmess "post_cleanup backtrace"
		2691	if $make_core;
		2692	}
		2693
2252	sub reload() {	2694	sub do_reload_perl() {
2253	# can/must only be called in main	2695	# can/must only be called in main
2254	if ($Coro::current != $Coro::main) {	2696	if ($Coro::current != $Coro::main) {
2255	warn "can only reload from main coroutine\n";	2697	warn "can only reload from main coroutine";
2256	return;	2698	return;
2257	}	2699	}
2258		2700
2259	warn "reloading...";	2701	warn "reloading...";
2260		2702
2261	my $guard = freeze_mainloop;	2703	warn "entering sync_job";
		2704
		2705	cf::sync_job {
		2706	cf::write_runtime; # external watchdog should not bark
2262	cf::emergency_save;	2707	cf::emergency_save;
		2708	cf::write_runtime; # external watchdog should not bark
2263		2709
2264	eval {	2710	warn "syncing database to disk";
		2711	BDB::db_env_txn_checkpoint $DB_ENV;
		2712
2265	# if anything goes wrong in here, we should simply crash as we already saved	2713	# if anything goes wrong in here, we should simply crash as we already saved
2266		2714
2267	# cancel all watchers	2715	warn "cancelling all WF_AUTOCANCEL watchers";
2268	for (Event::all_watchers) {	2716	for (Event::all_watchers) {
2269	$_->cancel if $_->data & WF_AUTOCANCEL;	2717	$_->cancel if $_->data & WF_AUTOCANCEL;
2270	}	2718	}
2271		2719
		2720	warn "flushing outstanding aio requests";
		2721	for (;;) {
		2722	BDB::flush;
		2723	IO::AIO::flush;
		2724	Coro::cede;
		2725	last unless IO::AIO::nreqs || BDB::nreqs;
		2726	warn "iterate...";
		2727	}
		2728
		2729	++$RELOAD;
		2730
2272	# cancel all extension coros	2731	warn "cancelling all extension coros";
2273	$_->cancel for values %EXT_CORO;	2732	$_->cancel for values %EXT_CORO;
2274	%EXT_CORO = ();	2733	%EXT_CORO = ();
2275		2734
2276	# unload all extensions	2735	warn "removing commands";
2277	for (@exts) {	2736	%COMMAND = ();
		2737
		2738	warn "removing ext commands";
		2739	%EXTCMD = ();
		2740
		2741	warn "unloading/nuking all extensions";
		2742	for my $pkg (@EXTS) {
2278	warn "unloading <$_>";	2743	warn "... unloading $pkg";
2279	unload_extension $_;	2744
		2745	if (my $cb = $pkg->can ("unload")) {
		2746	eval {
		2747	$cb->($pkg);
		2748	1
		2749	} or warn "$pkg unloaded, but with errors: $@";
2280	}	2750	}
2281		2751
		2752	warn "... nuking $pkg";
		2753	Symbol::delete_package $pkg;
		2754	}
		2755
2282	# unload all modules loaded from $LIBDIR	2756	warn "unloading all perl modules loaded from $LIBDIR";
2283	while (my ($k, $v) = each %INC) {	2757	while (my ($k, $v) = each %INC) {
2284	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2758	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2285		2759
2286	warn "removing <$k>";	2760	warn "... unloading $k";
2287	delete $INC{$k};	2761	delete $INC{$k};
2288		2762
2289	$k =~ s/\.pm$//;	2763	$k =~ s/\.pm$//;
2290	$k =~ s/\//::/g;	2764	$k =~ s/\//::/g;
2291		2765
…		…
2294	}	2768	}
2295		2769
2296	Symbol::delete_package $k;	2770	Symbol::delete_package $k;
2297	}	2771	}
2298		2772
2299	# sync database to disk
2300	cf::db_sync;
2301	IO::AIO::flush;
2302
2303	# get rid of safe::, as good as possible	2773	warn "getting rid of safe::, as good as possible";
2304	Symbol::delete_package "safe::$_"	2774	Symbol::delete_package "safe::$_"
2305	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2775	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2306		2776
2307	# remove register_script_function callbacks
2308	# TODO
2309
2310	# unload cf.pm "a bit"	2777	warn "unloading cf.pm \"a bit\"";
2311	delete $INC{"cf.pm"};	2778	delete $INC{"cf.pm"};
		2779	delete $INC{"cf/pod.pm"};
2312		2780
2313	# don't, removes xs symbols, too,	2781	# don't, removes xs symbols, too,
2314	# and global variables created in xs	2782	# and global variables created in xs
2315	#Symbol::delete_package __PACKAGE__;	2783	#Symbol::delete_package __PACKAGE__;
2316		2784
2317	# reload cf.pm	2785	warn "unload completed, starting to reload now";
		2786
2318	warn "reloading cf.pm";	2787	warn "reloading cf.pm";
2319	require cf;	2788	require cf;
2320	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2789	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2321		2790
2322	# load config and database again	2791	warn "loading config and database again";
2323	cf::cfg_load;	2792	cf::cfg_load;
2324	cf::db_load;
2325		2793
2326	# load extensions
2327	warn "load extensions";	2794	warn "loading extensions";
2328	cf::load_extensions;	2795	cf::load_extensions;
2329		2796
2330	# reattach attachments to objects	2797	warn "reattaching attachments to objects/players";
2331	warn "reattach";	2798	_global_reattach; # objects, sockets
2332	_global_reattach;	2799	warn "reattaching attachments to maps";
2333	reattach $_ for values %MAP;	2800	reattach $_ for values %MAP;
2334	};	2801	warn "reattaching attachments to players";
		2802	reattach $_ for values %PLAYER;
2335		2803
2336	if ($@) {	2804	warn "leaving sync_job";
		2805
		2806	1
		2807	} or do {
2337	warn $@;	2808	warn $@;
2338	warn "error while reloading, exiting.";	2809	warn "error while reloading, exiting.";
2339	exit 1;	2810	exit 1;
2340	}	2811	};
2341		2812
2342	warn "reloaded successfully";	2813	warn "reloaded";
2343	};	2814	};
2344		2815
2345	#############################################################################	2816	our $RELOAD_WATCHER; # used only during reload
2346		2817
2347	unless ($LINK_MAP) {	2818	sub reload_perl() {
2348	$LINK_MAP = cf::map::new;	2819	# doing reload synchronously and two reloads happen back-to-back,
		2820	# coro crashes during coro_state_free->destroy here.
2349		2821
2350	$LINK_MAP->width (41);	2822	$RELOAD_WATCHER ||= Event->timer (
2351	$LINK_MAP->height (41);	2823	reentrant => 0,
2352	$LINK_MAP->alloc;
2353	$LINK_MAP->path ("{link}");
2354	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2355	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2356
2357	# dirty hack because... archetypes are not yet loaded
2358	Event->timer (
2359	after => 10,	2824	after => 0,
		2825	data => WF_AUTOCANCEL,
2360	cb => sub {	2826	cb => sub {
2361	$_[0]->w->cancel;	2827	do_reload_perl;
2362		2828	undef $RELOAD_WATCHER;
2363	# provide some exits "home"
2364	my $exit = cf::object::new "exit";
2365
2366	$exit->slaying ($EMERGENCY_POSITION->[0]);
2367	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2368	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2369
2370	$LINK_MAP->insert ($exit->clone, 19, 19);
2371	$LINK_MAP->insert ($exit->clone, 19, 20);
2372	$LINK_MAP->insert ($exit->clone, 19, 21);
2373	$LINK_MAP->insert ($exit->clone, 20, 19);
2374	$LINK_MAP->insert ($exit->clone, 20, 21);
2375	$LINK_MAP->insert ($exit->clone, 21, 19);
2376	$LINK_MAP->insert ($exit->clone, 21, 20);
2377	$LINK_MAP->insert ($exit->clone, 21, 21);
2378
2379	$exit->destroy;
2380	});	2829	},
2381		2830	);
2382	$LINK_MAP->{deny_save} = 1;
2383	$LINK_MAP->{deny_reset} = 1;
2384
2385	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2386	}	2831	}
2387
2388	register "<global>", __PACKAGE__;
2389		2832
2390	register_command "reload" => sub {	2833	register_command "reload" => sub {
2391	my ($who, $arg) = @_;	2834	my ($who, $arg) = @_;
2392		2835
2393	if ($who->flag (FLAG_WIZ)) {	2836	if ($who->flag (FLAG_WIZ)) {
2394	$who->message ("start of reload.");
2395	reload;
2396	$who->message ("end of reload.");	2837	$who->message ("reloading server.");
		2838	async { reload_perl };
2397	}	2839	}
2398	};	2840	};
2399		2841
2400	unshift @INC, $LIBDIR;	2842	unshift @INC, $LIBDIR;
2401		2843
		2844	my $bug_warning = 0;
		2845
		2846	our @WAIT_FOR_TICK;
		2847	our @WAIT_FOR_TICK_BEGIN;
		2848
		2849	sub wait_for_tick {
		2850	return unless $TICK_WATCHER->is_active;
		2851	return if $Coro::current == $Coro::main;
		2852
		2853	my $signal = new Coro::Signal;
		2854	push @WAIT_FOR_TICK, $signal;
		2855	$signal->wait;
		2856	}
		2857
		2858	sub wait_for_tick_begin {
		2859	return unless $TICK_WATCHER->is_active;
		2860	return if $Coro::current == $Coro::main;
		2861
		2862	my $signal = new Coro::Signal;
		2863	push @WAIT_FOR_TICK_BEGIN, $signal;
		2864	$signal->wait;
		2865	}
		2866
		2867	my $min = 1e6;#d#
		2868	my $avg = 10;
2402	$TICK_WATCHER = Event->timer (	2869	$TICK_WATCHER = Event->timer (
2403	reentrant => 0,	2870	reentrant => 0,
		2871	parked => 1,
2404	prio => 0,	2872	prio => 0,
2405	at => $NEXT_TICK || $TICK,	2873	at => $NEXT_TICK || $TICK,
2406	data => WF_AUTOCANCEL,	2874	data => WF_AUTOCANCEL,
2407	cb => sub {	2875	cb => sub {
		2876	if ($Coro::current != $Coro::main) {
		2877	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2878	unless ++$bug_warning > 10;
		2879	return;
		2880	}
		2881
		2882	$NOW = $tick_start = Event::time;
		2883
2408	cf::server_tick; # one server iteration	2884	cf::server_tick; # one server iteration
		2885
		2886	0 && sync_job {#d#
		2887	for(1..10) {
		2888	my $t = Event::time;
		2889	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2890	or die;
		2891
		2892	$map->width (50);
		2893	$map->height (50);
		2894	$map->alloc;
		2895	$map->_load_objects ("/tmp/x.map", 1);
		2896	my $t = Event::time - $t;
		2897
		2898	#next unless $t < 0.0013;#d#
		2899	if ($t < $min) {
		2900	$min = $t;
		2901	}
		2902	$avg = $avg * 0.99 + $t * 0.01;
		2903	}
		2904	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2905	exit 0;
		2906	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2907	};
		2908
2409	$RUNTIME += $TICK;	2909	$RUNTIME += $TICK;
2410	$NEXT_TICK += $TICK;	2910	$NEXT_TICK += $TICK;
2411		2911
2412	$WAIT_FOR_TICK->broadcast;	2912	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2413	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2913	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2914	Coro::async_pool {
		2915	write_runtime
		2916	or warn "ERROR: unable to write runtime file: $!";
		2917	};
		2918	}
		2919
		2920	# my $AFTER = Event::time;
		2921	# warn $AFTER - $NOW;#d#
		2922
		2923	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2924	$sig->send;
		2925	}
		2926	while (my $sig = shift @WAIT_FOR_TICK) {
		2927	$sig->send;
		2928	}
		2929
		2930	$NOW = Event::time;
2414		2931
2415	# if we are delayed by four ticks or more, skip them all	2932	# if we are delayed by four ticks or more, skip them all
2416	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2933	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2417		2934
2418	$TICK_WATCHER->at ($NEXT_TICK);	2935	$TICK_WATCHER->at ($NEXT_TICK);
2419	$TICK_WATCHER->start;	2936	$TICK_WATCHER->start;
		2937
		2938	$LOAD = ($NOW - $tick_start) / $TICK;
		2939	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2940
		2941	_post_tick;
		2942
		2943
2420	},	2944	},
2421	);	2945	);
2422		2946
		2947	{
2423	IO::AIO::max_poll_time $TICK * 0.2;	2948	BDB::max_poll_time $TICK * 0.1;
2424		2949	$BDB_POLL_WATCHER = Event->io (
2425	Event->io (	2950	reentrant => 0,
2426	fd => IO::AIO::poll_fileno,	2951	fd => BDB::poll_fileno,
2427	poll => 'r',	2952	poll => 'r',
2428	prio => 5,	2953	prio => 0,
2429	data => WF_AUTOCANCEL,
2430	cb => \&IO::AIO::poll_cb,
2431	);
2432
2433	Event->timer (
2434	data => WF_AUTOCANCEL,	2954	data => WF_AUTOCANCEL,
2435	after => 0,	2955	cb => \&BDB::poll_cb,
2436	interval => 10,	2956	);
2437	cb => sub {	2957	BDB::min_parallel 8;
2438	(Coro::unblock_sub {	2958
2439	write_runtime	2959	BDB::set_sync_prepare {
2440	or warn "ERROR: unable to write runtime file: $!";	2960	my $status;
		2961	my $current = $Coro::current;
		2962	(
		2963	sub {
		2964	$status = $!;
		2965	$current->ready; undef $current;
		2966	},
		2967	sub {
		2968	Coro::schedule while defined $current;
		2969	$! = $status;
		2970	},
		2971	)
		2972	};
		2973
		2974	unless ($DB_ENV) {
		2975	$DB_ENV = BDB::db_env_create;
		2976
		2977	cf::sync_job {
		2978	eval {
		2979	BDB::db_env_open
		2980	$DB_ENV,
		2981	$BDBDIR,
		2982	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2983	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2984	0666;
		2985
		2986	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2987
		2988	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2989	$DB_ENV->set_lk_detect;
		2990	};
		2991
		2992	cf::cleanup "db_env_open(db): $@" if $@;
2441	})->();	2993	};
2442	},	2994	}
2443	);	2995	}
		2996
		2997	{
		2998	IO::AIO::min_parallel 8;
		2999
		3000	undef $Coro::AIO::WATCHER;
		3001	IO::AIO::max_poll_time $TICK * 0.1;
		3002	$AIO_POLL_WATCHER = Event->io (
		3003	reentrant => 0,
		3004	data => WF_AUTOCANCEL,
		3005	fd => IO::AIO::poll_fileno,
		3006	poll => 'r',
		3007	prio => 6,
		3008	cb => \&IO::AIO::poll_cb,
		3009	);
		3010	}
		3011
		3012	my $_log_backtrace;
		3013
		3014	sub _log_backtrace {
		3015	my ($msg, @addr) = @_;
		3016
		3017	$msg =~ s/\n//;
		3018
		3019	# limit the # of concurrent backtraces
		3020	if ($_log_backtrace < 2) {
		3021	++$_log_backtrace;
		3022	async {
		3023	my @bt = fork_call {
		3024	@addr = map { sprintf "%x", $_ } @addr;
		3025	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3026	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3027	or die "addr2line: $!";
		3028
		3029	my @funcs;
		3030	my @res = <$fh>;
		3031	chomp for @res;
		3032	while (@res) {
		3033	my ($func, $line) = splice @res, 0, 2, ();
		3034	push @funcs, "[$func] $line";
		3035	}
		3036
		3037	@funcs
		3038	};
		3039
		3040	LOG llevInfo, "[ABT] $msg\n";
		3041	LOG llevInfo, "[ABT] $_\n" for @bt;
		3042	--$_log_backtrace;
		3043	};
		3044	} else {
		3045	LOG llevInfo, "[ABT] $msg\n";
		3046	LOG llevInfo, "[ABT] [suppressed]\n";
		3047	}
		3048	}
		3049
		3050	# load additional modules
		3051	use cf::pod;
2444		3052
2445	END { cf::emergency_save }	3053	END { cf::emergency_save }
2446		3054
2447	1	3055	1
2448		3056

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