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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.158 by root, Wed Jan 10 19:52:43 2007 UTC vs.
Revision 1.274 by root, Tue Jun 5 13:05:02 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	use overload
373	'""' => \&as_string;
374
375	# used to convert map paths into valid unix filenames by repalcing / by ∕
376	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
377
378	sub new {
379	my ($class, $path, $base) = @_;
380
381	$path = $path->as_string if ref $path;
382
383	my $self = bless { }, $class;
384
385	# {... are special paths that are not touched
386	# ?xxx/... are special absolute paths
387	# ?random/... random maps
388	# /! non-realised random map exit
389	# /... normal maps
390	# ~/... per-player maps without a specific player (DO NOT USE)
391	# ~user/... per-player map of a specific user
392
393	$path =~ s/$PATH_SEP/\//go;
394
395	if ($path =~ /^{/) {
396	# fine as it is
397	} elsif ($path =~ s{^\?random/}{}) {
398	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
399	$self->{random} = cf::from_json $data;
400	} else {
401	if ($path =~ s{^~([^/]+)?}{}) {
402	$self->{user_rel} = 1;
403
404	if (defined $1) {
405	$self->{user} = $1;
406	} elsif ($base =~ m{^~([^/]+)/}) {
407	$self->{user} = $1;
408	} else {
409	warn "cannot resolve user-relative path without user <$path,$base>\n";
410	}
411	} elsif ($path =~ /^\//) {
412	# already absolute
413	} else {
414	$base =~ s{[^/]+/?$}{};
415	return $class->new ("$base/$path");
416	}
417
418	for ($path) {
419	redo if s{/\.?/}{/};
420	redo if s{/[^/]+/\.\./}{/};
421	}
422	}
423
424	$self->{path} = $path;
425
426	$self
427	}
428
429	# the name / primary key / in-game path
430	sub as_string {
431	my ($self) = @_;
432
433	$self->{user_rel} ? "~$self->{user}$self->{path}"
434	: $self->{random} ? "?random/$self->{path}"
435	: $self->{path}
436	}
437
438	# the displayed name, this is a one way mapping
439	sub visible_name {
440	my ($self) = @_;
441
442	# if (my $rmp = $self->{random}) {
443	# # todo: be more intelligent about this
444	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
445	# } else {
446	$self->as_string
447	# }
448	}
449
450	# escape the /'s in the path
451	sub _escaped_path {
452	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
453	$path
454	}
455
456	# the original (read-only) location
457	sub load_path {
458	my ($self) = @_;
459
460	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
461	}
462
463	# the temporary/swap location
464	sub save_path {
465	my ($self) = @_;
466
467	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
468	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
469	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
470	}
471
472	# the unique path, might be eq to save_path
473	sub uniq_path {
474	my ($self) = @_;
475
476	$self->{user_rel} || $self->{random}
477	? undef
478	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
479	}
480
481	# return random map parameters, or undef
482	sub random_map_params {
483	my ($self) = @_;
484
485	$self->{random}
486	}
487
488	# this is somewhat ugly, but style maps do need special treatment
489	sub is_style_map {
490	$_[0]{path} =~ m{^/styles/}
491	}
492
493	package cf;
494		447
495	#############################################################################	448	#############################################################################
496		449
497	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
498		451
…		…
624	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
625	our @CB_MAP = ();	578	our @CB_MAP = ();
626		579
627	my %attachment;	580	my %attachment;
628		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
629	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
630	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
631		590
632	use sort 'stable';	591	use sort 'stable';
633		592
…		…
667	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
668		627
669	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
670	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
671	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
672	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
673		632
674	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
675	my $pkg = shift @arg;	634	my $pkg = shift @arg;
676		635
677	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
718	if (ref $_[0]) {	677	if (ref $_[0]) {
719	_object_attach @_;	678	_object_attach @_;
720	} else {	679	} else {
721	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
722	}	681	}
		682	_recalc_want;
723	};	683	};
724		684
725	# all those should be optimised	685	# all those should be optimised
726	sub cf::attachable::detach {	686	sub cf::attachable::detach {
727	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
730	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
731	reattach ($obj);	691	reattach ($obj);
732	} else {	692	} else {
733	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
734	}	694	}
		695	_recalc_want;
735	};	696	};
736		697
737	sub cf::attachable::attached {	698	sub cf::attachable::attached {
738	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
739		700
…		…
804	# object support	765	# object support
805		766
806	sub reattach {	767	sub reattach {
807	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
808	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
809		772
810	my $registry = $obj->registry;	773	my $registry = $obj->registry;
811		774
812	@$registry = ();	775	@$registry = ();
813		776
…		…
860	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
861		824
862	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
863	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
864	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
865	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
866	close $fh;	829	close $fh;
867		830
868	if (@$objs) {	831	if (@$objs) {
869	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) {
870	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
871	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
872	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
873	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
874	close $fh;	837	close $fh;
875	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
876	}	839	}
877	} else {	840	} else {
878	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
910	or return;	873	or return;
911	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
912	}	875	}
913		876
914	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
915	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
916	return ($data, $av);	879	return ($data, $av);
917	}	880	}
918		881
919	#############################################################################	882	#############################################################################
920	# command handling &c	883	# command handling &c
…		…
945	=cut	908	=cut
946		909
947	sub register_extcmd {	910	sub register_extcmd {
948	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
949		912
950	my $caller = caller;
951	#warn "registering extcmd '$name' to '$caller'";
952
953	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
954	}	914	}
955		915
956	cf::player->attach (	916	cf::player->attach (
957	on_command => sub {	917	on_command => sub {
958	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
971		931
972	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
973		933
974	if (ref $msg) {	934	if (ref $msg) {
975	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
976	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
977	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
978	}	938	}
979	}	939	}
980	} else {	940	} else {
981	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
983		943
984	cf::override;	944	cf::override;
985	},	945	},
986	);	946	);
987		947
988	sub register {
989	my ($base, $pkg) = @_;
990
991	#TODO
992	}
993
994	sub load_extension {	948	sub load_extension {
995	my ($path) = @_;	949	my ($path) = @_;
996		950
997	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
998	my $base = $1;	952	my $base = $1;
999	my $pkg = $1;	953	my $pkg = $1;
1000	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
1001	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
1002		956
1003	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
1004		958
1005	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
1006	or die "$path: $!";	960	or die "$path: $!";
1007		961
1008	my $source =	962	my $source =
1009	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
1010	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
1011	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
1012	. "\n};\n1";	966	. "\n};\n1";
1013		967
1014	eval $source	968	unless (eval $source) {
1015	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
1016	: "extension disabled.\n";	970	: "extension disabled.\n";
1017		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1018	push @exts, $pkg;	972	warn $@;
1019	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
1020		974	exit 1;
1021	# no strict 'refs';	975	}
1022	# @{"$pkg\::ISA"} = ext::;	976	die $@;
1023
1024	register $base, $pkg;
1025	}
1026
1027	sub unload_extension {
1028	my ($pkg) = @_;
1029
1030	warn "removing extension $pkg\n";
1031
1032	# remove hooks
1033	#TODO
1034	# for my $idx (0 .. $#PLUGIN_EVENT) {
1035	# delete $hook[$idx]{$pkg};
1036	# }	977	}
1037		978
1038	# remove commands	979	push @EXTS, $pkg;
1039	for my $name (keys %COMMAND) {
1040	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1041
1042	if (@cb) {
1043	$COMMAND{$name} = \@cb;
1044	} else {
1045	delete $COMMAND{$name};
1046	}
1047	}
1048
1049	# remove extcmds
1050	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1051	delete $EXTCMD{$name};
1052	}
1053
1054	if (my $cb = $pkg->can ("unload")) {
1055	eval {
1056	$cb->($pkg);
1057	1
1058	} or warn "$pkg unloaded, but with errors: $@";
1059	}
1060
1061	Symbol::delete_package $pkg;
1062	}	980	}
1063		981
1064	sub load_extensions {	982	sub load_extensions {
1065	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
1066	next unless -r $ext;	984	next unless -r $ext;
…		…
1070	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
1071	}	989	}
1072	}	990	}
1073		991
1074	#############################################################################	992	#############################################################################
1075	# load/save/clean perl data associated with a map
1076
1077	*cf::mapsupport::on_clean = sub {
1078	my ($map) = @_;
1079
1080	my $path = $map->tmpname;
1081	defined $path or return;
1082
1083	unlink "$path.pst";
1084	};
1085
1086	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1087
1088	#############################################################################
1089		993
1090	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1091		995
1092	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1093		997
…		…
1106	Returns the given player object, loading it if necessary (might block).	1010	Returns the given player object, loading it if necessary (might block).
1107		1011
1108	=cut	1012	=cut
1109		1013
1110	sub playerdir($) {	1014	sub playerdir($) {
1111	cf::localdir	1015	"$PLAYERDIR/"
1112	. "/"
1113	. cf::playerdir
1114	. "/"
1115	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1116	}	1017	}
1117		1018
1118	sub path($) {	1019	sub path($) {
1119	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1120		1021
1121	(playerdir $login) . "/$login.pl"	1022	(playerdir $login) . "/playerdata"
1122	}	1023	}
1123		1024
1124	sub find_active($) {	1025	sub find_active($) {
1125	$cf::PLAYER{$_[0]}	1026	$cf::PLAYER{$_[0]}
1126	and $cf::PLAYER{$_[0]}->active	1027	and $cf::PLAYER{$_[0]}->active
…		…
1129		1030
1130	sub exists($) {	1031	sub exists($) {
1131	my ($login) = @_;	1032	my ($login) = @_;
1132		1033
1133	$cf::PLAYER{$login}	1034	$cf::PLAYER{$login}
1134	or cf::sync_job { !aio_stat $login }	1035	or cf::sync_job { !aio_stat path $login }
1135	}	1036	}
1136		1037
1137	sub find($) {	1038	sub find($) {
1138	return $cf::PLAYER{$_[0]} || do {	1039	return $cf::PLAYER{$_[0]} || do {
1139	my $login = $_[0];	1040	my $login = $_[0];
1140		1041
1141	my $guard = cf::lock_acquire "user_find:$login";	1042	my $guard = cf::lock_acquire "user_find:$login";
1142		1043
1143	$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
1144	my $pl = load_pl path $login	1052	my $pl = load_pl path $login
1145	or return;	1053	or return;
1146	$cf::PLAYER{$login} = $pl	1054	$cf::PLAYER{$login} = $pl
1147	}	1055	}
1148	}	1056	}
…		…
1185		1093
1186	=cut	1094	=cut
1187		1095
1188	sub quit_character {	1096	sub quit_character {
1189	my ($pl) = @_;	1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
1190		1100
1191	$pl->{deny_save} = 1;	1101	$pl->{deny_save} = 1;
1192	$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
1193		1103
1194	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1199	my $path = playerdir $pl;	1109	my $path = playerdir $pl;
1200	my $temp = "$path~$cf::RUNTIME~deleting~";	1110	my $temp = "$path~$cf::RUNTIME~deleting~";
1201	aio_rename $path, $temp;	1111	aio_rename $path, $temp;
1202	delete $cf::PLAYER{$pl->ob->name};	1112	delete $cf::PLAYER{$pl->ob->name};
1203	$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
1204	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;
1205	}	1135	}
1206		1136
1207	=item cf::player::list_logins	1137	=item cf::player::list_logins
1208		1138
1209	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
1210	while and may block, so not sync_job-capable, ever.	1140	while and may block, so not sync_job-capable, ever.
1211		1141
1212	=cut	1142	=cut
1213		1143
1214	sub list_logins {	1144	sub list_logins {
1215	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1145	my $dirs = aio_readdir $PLAYERDIR
1216	or return [];	1146	or return [];
1217		1147
1218	my @logins;	1148	my @logins;
1219		1149
1220	for my $login (@$dirs) {	1150	for my $login (@$dirs) {
…		…
1229	\@logins	1159	\@logins
1230	}	1160	}
1231		1161
1232	=item $player->maps	1162	=item $player->maps
1233		1163
1234	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
1235	player. May block.	1165	player. May block.
1236		1166
1237	=cut	1167	=cut
1238		1168
1239	sub maps($) {	1169	sub maps($) {
1240	my ($pl) = @_;	1170	my ($pl) = @_;
		1171
		1172	$pl = ref $pl ? $pl->ob->name : $pl;
1241		1173
1242	my $files = aio_readdir playerdir $pl	1174	my $files = aio_readdir playerdir $pl
1243	or return;	1175	or return;
1244		1176
1245	my @paths;	1177	my @paths;
…		…
1247	for (@$files) {	1179	for (@$files) {
1248	utf8::decode $_;	1180	utf8::decode $_;
1249	next if /\.(?:pl|pst)$/;	1181	next if /\.(?:pl|pst)$/;
1250	next unless /^$PATH_SEP/o;	1182	next unless /^$PATH_SEP/o;
1251		1183
1252	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1184	push @paths, cf::map::normalise "~$pl/$_";
1253	}	1185	}
1254		1186
1255	\@paths	1187	\@paths
1256	}	1188	}
1257		1189
1258	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1259		1191
1260	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1261		1193
1262	=cut	1194	=cut
1263		1195
1264	sub ext_reply($$$%) {	1196	sub ext_reply($$%) {
1265	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1266		1198
1267	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1268		1200
1269	$self->send ("ext " . cf::to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
1270	}	1202	}
1271		1203
1272	package cf;	1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		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	}
1273		1244
1274	=back	1245	=back
1275
1276		1246
1277	=head3 cf::map	1247	=head3 cf::map
1278		1248
1279	=over 4	1249	=over 4
1280		1250
…		…
1283	package cf::map;	1253	package cf::map;
1284		1254
1285	use Fcntl;	1255	use Fcntl;
1286	use Coro::AIO;	1256	use Coro::AIO;
1287		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1288	our $MAX_RESET = 3600;	1262	our $MAX_RESET = 3600;
1289	our $DEFAULT_RESET = 3000;	1263	our $DEFAULT_RESET = 3000;
1290		1264
1291	sub generate_random_map {	1265	sub generate_random_map {
1292	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1293
1294	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1295	cf::map::_create_random_map	1268	$self->_create_random_map (
1296	$path,
1297	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1298	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1299	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1300	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1301	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1302	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1303	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1304	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1305	$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},
1306	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1307	(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	local $self->{deny_save};
		1311	local $self->{deny_reset};
		1312
		1313	$self->SUPER::thawer_merge ($merge);
		1314	}
		1315
		1316	sub normalise {
		1317	my ($path, $base) = @_;
		1318
		1319	$path = "$path"; # make sure its a string
		1320
		1321	$path =~ s/\.map$//;
		1322
		1323	# map plan:
		1324	#
		1325	# /! non-realised random map exit (special hack!)
		1326	# {... are special paths that are not being touched
		1327	# ?xxx/... are special absolute paths
		1328	# ?random/... random maps
		1329	# /... normal maps
		1330	# ~user/... per-player map of a specific user
		1331
		1332	$path =~ s/$PATH_SEP/\//go;
		1333
		1334	# treat it as relative path if it starts with
		1335	# something that looks reasonable
		1336	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1337	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1338
		1339	$base =~ s{[^/]+/?$}{};
		1340	$path = "$base/$path";
		1341	}
		1342
		1343	for ($path) {
		1344	redo if s{//}{/};
		1345	redo if s{/\.?/}{/};
		1346	redo if s{/[^/]+/\.\./}{/};
		1347	}
		1348
		1349	$path
		1350	}
		1351
		1352	sub new_from_path {
		1353	my (undef, $path, $base) = @_;
		1354
		1355	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1356
		1357	$path = normalise $path, $base;
		1358
		1359	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1360	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1361	my $self = bless cf::map::new, $pkg;
		1362	$self->{path} = $path; $self->path ($path);
		1363	$self->init; # pass $1 etc.
		1364	return $self;
		1365	}
		1366	}
		1367
		1368	Carp::carp "unable to resolve path '$path' (base '$base').";
		1369	()
		1370	}
		1371
		1372	sub init {
		1373	my ($self) = @_;
		1374
		1375	$self
		1376	}
		1377
		1378	sub as_string {
		1379	my ($self) = @_;
		1380
		1381	"$self->{path}"
		1382	}
		1383
		1384	# the displayed name, this is a one way mapping
		1385	sub visible_name {
		1386	&as_string
		1387	}
		1388
		1389	# the original (read-only) location
		1390	sub load_path {
		1391	my ($self) = @_;
		1392
		1393	"$MAPDIR/$self->{path}.map"
		1394	}
		1395
		1396	# the temporary/swap location
		1397	sub save_path {
		1398	my ($self) = @_;
		1399
		1400	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1401	"$TMPDIR/$path.map"
		1402	}
		1403
		1404	# the unique path, undef == no special unique path
		1405	sub uniq_path {
		1406	my ($self) = @_;
		1407
		1408	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1409	"$UNIQUEDIR/$path"
1308	}	1410	}
1309		1411
1310	# and all this just because we cannot iterate over	1412	# and all this just because we cannot iterate over
1311	# all maps in C++...	1413	# all maps in C++...
1312	sub change_all_map_light {	1414	sub change_all_map_light {
…		…
1314		1416
1315	$_->change_map_light ($change)	1417	$_->change_map_light ($change)
1316	for grep $_->outdoor, values %cf::MAP;	1418	for grep $_->outdoor, values %cf::MAP;
1317	}	1419	}
1318		1420
		1421	sub unlink_save {
		1422	my ($self) = @_;
		1423
		1424	utf8::encode (my $save = $self->save_path);
		1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1427	}
		1428
1319	sub try_load_header($) {	1429	sub load_header_from($) {
1320	my ($path) = @_;	1430	my ($self, $path) = @_;
1321		1431
1322	utf8::encode $path;	1432	utf8::encode $path;
1323	aio_open $path, O_RDONLY, 0	1433	#aio_open $path, O_RDONLY, 0
		1434	# or return;
		1435
		1436	$self->_load_header ($path)
1324	or return;	1437	or return;
1325		1438
1326	my $map = cf::map::new	1439	$self->{load_path} = $path;
		1440
		1441	1
		1442	}
		1443
		1444	sub load_header_orig {
		1445	my ($self) = @_;
		1446
		1447	$self->load_header_from ($self->load_path)
		1448	}
		1449
		1450	sub load_header_temp {
		1451	my ($self) = @_;
		1452
		1453	$self->load_header_from ($self->save_path)
		1454	}
		1455
		1456	sub prepare_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->last_access ((delete $self->{last_access})
		1460	|| $cf::RUNTIME); #d#
		1461	# safety
		1462	$self->{instantiate_time} = $cf::RUNTIME
		1463	if $self->{instantiate_time} > $cf::RUNTIME;
		1464	}
		1465
		1466	sub prepare_orig {
		1467	my ($self) = @_;
		1468
		1469	$self->{load_original} = 1;
		1470	$self->{instantiate_time} = $cf::RUNTIME;
		1471	$self->last_access ($cf::RUNTIME);
		1472	$self->instantiate;
		1473	}
		1474
		1475	sub load_header {
		1476	my ($self) = @_;
		1477
		1478	if ($self->load_header_temp) {
		1479	$self->prepare_temp;
		1480	} else {
		1481	$self->load_header_orig
1327	or return;	1482	or return;
		1483	$self->prepare_orig;
		1484	}
1328		1485
1329	# for better error messages only, will be overwritten	1486	$self->default_region (cf::region::find_by_path $self->{path})
1330	$map->path ($path);	1487	unless $self->default_region;
1331		1488
1332	$map->load_header ($path)	1489	1
1333	or return;
1334
1335	$map->{load_path} = $path;
1336
1337	$map
1338	}	1490	}
1339		1491
1340	sub find;	1492	sub find;
1341	sub find {	1493	sub find {
1342	my ($path, $origin) = @_;	1494	my ($path, $origin) = @_;
1343		1495
1344	#warn "find<$path,$origin>\n";#d#
1345
1346	$path = new cf::path $path, $origin && $origin->path;	1496	$path = normalise $path, $origin && $origin->path;
1347	my $key = $path->as_string;
1348		1497
1349	cf::lock_wait "map_find:$key";	1498	cf::lock_wait "map_find:$path";
1350		1499
1351	$cf::MAP{$key} || do {	1500	$cf::MAP{$path} || do {
1352	my $guard = cf::lock_acquire "map_find:$key";	1501	my $guard = cf::lock_acquire "map_find:$path";
1353		1502	my $map = new_from_path cf::map $path
1354	# do it the slow way
1355	my $map = try_load_header $path->save_path;
1356
1357	Coro::cede;
1358
1359	if ($map) {
1360	$map->last_access ((delete $map->{last_access})
1361	|| $cf::RUNTIME); #d#
1362	# safety
1363	$map->{instantiate_time} = $cf::RUNTIME
1364	if $map->{instantiate_time} > $cf::RUNTIME;
1365	} else {
1366	if (my $rmp = $path->random_map_params) {
1367	$map = generate_random_map $key, $rmp;
1368	} else {
1369	$map = try_load_header $path->load_path;
1370	}
1371
1372	$map or return;	1503	or return;
1373		1504
1374	$map->{load_original} = 1;
1375	$map->{instantiate_time} = $cf::RUNTIME;
1376	$map->last_access ($cf::RUNTIME);
1377	$map->instantiate;
1378
1379	# per-player maps become, after loading, normal maps
1380	$map->per_player (0) if $path->{user_rel};
1381	}
1382
1383	$map->path ($key);
1384	$map->{path} = $path;
1385	$map->{last_save} = $cf::RUNTIME;	1505	$map->{last_save} = $cf::RUNTIME;
1386		1506
1387	Coro::cede;	1507	$map->load_header
		1508	or return;
1388		1509
1389	if ($map->should_reset) {	1510	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1511	# doing this can freeze the server in a sync job, obviously
		1512	#$cf::WAIT_FOR_TICK->wait;
1390	$map->reset;	1513	$map->reset;
1391	undef $guard;	1514	undef $guard;
1392	$map = find $path	1515	return find $path;
1393	or return;
1394	}	1516	}
1395		1517
1396	$cf::MAP{$key} = $map	1518	$cf::MAP{$path} = $map
1397	}	1519	}
1398	}	1520	}
		1521
		1522	sub pre_load { }
		1523	sub post_load { }
1399		1524
1400	sub load {	1525	sub load {
1401	my ($self) = @_;	1526	my ($self) = @_;
1402		1527
		1528	local $self->{deny_reset} = 1; # loading can take a long time
		1529
1403	my $path = $self->{path};	1530	my $path = $self->{path};
		1531
		1532	{
1404	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1533	my $guard = cf::lock_acquire "map_load:$path";
1405		1534
1406	return if $self->in_memory != cf::MAP_SWAPPED;	1535	return if $self->in_memory != cf::MAP_SWAPPED;
1407		1536
1408	$self->in_memory (cf::MAP_LOADING);	1537	$self->in_memory (cf::MAP_LOADING);
1409		1538
1410	$self->alloc;	1539	$self->alloc;
		1540
		1541	$self->pre_load;
		1542	Coro::cede;
		1543
1411	$self->load_objects ($self->{load_path}, 1)	1544	$self->_load_objects ($self->{load_path}, 1)
1412	or return;	1545	or return;
1413		1546
1414	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1547	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1415	if delete $self->{load_original};	1548	if delete $self->{load_original};
1416		1549
1417	if (my $uniq = $path->uniq_path) {	1550	if (my $uniq = $self->uniq_path) {
1418	utf8::encode $uniq;	1551	utf8::encode $uniq;
1419	if (aio_open $uniq, O_RDONLY, 0) {	1552	if (aio_open $uniq, O_RDONLY, 0) {
1420	$self->clear_unique_items;	1553	$self->clear_unique_items;
1421	$self->load_objects ($uniq, 0);	1554	$self->_load_objects ($uniq, 0);
1422	}	1555	}
1423	}	1556	}
1424		1557
1425	Coro::cede;	1558	Coro::cede;
1426
1427	# now do the right thing for maps	1559	# now do the right thing for maps
1428	$self->link_multipart_objects;	1560	$self->link_multipart_objects;
1429
1430	if ($self->{path}->is_style_map) {
1431	$self->{deny_save} = 1;
1432	$self->{deny_reset} = 1;
1433	} else {
1434	$self->fix_auto_apply;
1435	$self->decay_objects;
1436	$self->update_buttons;
1437	$self->set_darkness_map;
1438	$self->difficulty ($self->estimate_difficulty)	1561	$self->difficulty ($self->estimate_difficulty)
1439	unless $self->difficulty;	1562	unless $self->difficulty;
		1563	Coro::cede;
		1564
		1565	unless ($self->{deny_activate}) {
		1566	$self->decay_objects;
		1567	$self->fix_auto_apply;
		1568	$self->update_buttons;
		1569	Coro::cede;
		1570	$self->set_darkness_map;
		1571	Coro::cede;
1440	$self->activate;	1572	$self->activate;
1441	}	1573	}
1442		1574
1443	Coro::cede;
1444
1445	$self->in_memory (cf::MAP_IN_MEMORY);	1575	$self->in_memory (cf::MAP_IN_MEMORY);
		1576	}
		1577
		1578	$self->post_load;
		1579	}
		1580
		1581	sub customise_for {
		1582	my ($self, $ob) = @_;
		1583
		1584	return find "~" . $ob->name . "/" . $self->{path}
		1585	if $self->per_player;
		1586
		1587	$self
1446	}	1588	}
1447		1589
1448	# find and load all maps in the 3x3 area around a map	1590	# find and load all maps in the 3x3 area around a map
1449	sub load_diag {	1591	sub load_diag {
1450	my ($map) = @_;	1592	my ($map) = @_;
…		…
1480		1622
1481	cf::sync_job { $map->load };	1623	cf::sync_job { $map->load };
1482	}	1624	}
1483		1625
1484	our %MAP_PREFETCH;	1626	our %MAP_PREFETCH;
1485	our $MAP_PREFETCHER = Coro::async {	1627	our $MAP_PREFETCHER = undef;
1486	while () {
1487	while (%MAP_PREFETCH) {
1488	my $key = each %MAP_PREFETCH
1489	or next;
1490	my $path = delete $MAP_PREFETCH{$key};
1491
1492	my $map = find $path
1493	or next;
1494	$map->load;
1495	}
1496	Coro::schedule;
1497	}
1498	};
1499		1628
1500	sub find_async {	1629	sub find_async {
1501	my ($path, $origin) = @_;	1630	my ($path, $origin) = @_;
1502		1631
1503	$path = new cf::path $path, $origin && $origin->path;	1632	$path = normalise $path, $origin && $origin->{path};
1504	my $key = $path->as_string;
1505		1633
1506	if (my $map = $cf::MAP{$key}) {	1634	if (my $map = $cf::MAP{$path}) {
1507	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1635	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1508	}	1636	}
1509		1637
1510	$MAP_PREFETCH{$key} = $path;	1638	undef $MAP_PREFETCH{$path};
		1639	$MAP_PREFETCHER ||= cf::async {
		1640	while (%MAP_PREFETCH) {
		1641	for my $path (keys %MAP_PREFETCH) {
		1642	my $map = find $path
		1643	or next;
		1644	$map->load;
		1645
		1646	delete $MAP_PREFETCH{$path};
		1647	}
		1648	}
		1649	undef $MAP_PREFETCHER;
		1650	};
1511	$MAP_PREFETCHER->ready;	1651	$MAP_PREFETCHER->prio (6);
1512		1652
1513	()	1653	()
1514	}	1654	}
1515		1655
1516	sub save {	1656	sub save {
…		…
1520		1660
1521	$self->{last_save} = $cf::RUNTIME;	1661	$self->{last_save} = $cf::RUNTIME;
1522		1662
1523	return unless $self->dirty;	1663	return unless $self->dirty;
1524		1664
1525	my $save = $self->{path}->save_path; utf8::encode $save;	1665	my $save = $self->save_path; utf8::encode $save;
1526	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1666	my $uniq = $self->uniq_path; utf8::encode $uniq;
1527		1667
1528	$self->{load_path} = $save;	1668	$self->{load_path} = $save;
1529		1669
1530	return if $self->{deny_save};	1670	return if $self->{deny_save};
1531		1671
…		…
1534	cf::async {	1674	cf::async {
1535	$_->contr->save for $self->players;	1675	$_->contr->save for $self->players;
1536	};	1676	};
1537		1677
1538	if ($uniq) {	1678	if ($uniq) {
1539	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1679	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1540	$self->save_objects ($uniq, cf::IO_UNIQUES);	1680	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1541	} else {	1681	} else {
1542	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1682	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1543	}	1683	}
1544	}	1684	}
1545		1685
1546	sub swap_out {	1686	sub swap_out {
1547	my ($self) = @_;	1687	my ($self) = @_;
…		…
1561		1701
1562	sub reset_at {	1702	sub reset_at {
1563	my ($self) = @_;	1703	my ($self) = @_;
1564		1704
1565	# TODO: safety, remove and allow resettable per-player maps	1705	# TODO: safety, remove and allow resettable per-player maps
1566	return 1e99 if $self->{path}{user_rel};	1706	return 1e99 if $self->isa ("ext::map_per_player");#d#
1567	return 1e99 if $self->{deny_reset};	1707	return 1e99 if $self->{deny_reset};
1568		1708
1569	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1709	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1570	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1710	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1571		1711
…		…
1576	my ($self) = @_;	1716	my ($self) = @_;
1577		1717
1578	$self->reset_at <= $cf::RUNTIME	1718	$self->reset_at <= $cf::RUNTIME
1579	}	1719	}
1580		1720
1581	sub unlink_save {
1582	my ($self) = @_;
1583
1584	utf8::encode (my $save = $self->{path}->save_path);
1585	aioreq_pri 3; IO::AIO::aio_unlink $save;
1586	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1587	}
1588
1589	sub rename {
1590	my ($self, $new_path) = @_;
1591
1592	$self->unlink_save;
1593
1594	delete $cf::MAP{$self->path};
1595	$self->{path} = new cf::path $new_path;
1596	$self->path ($self->{path}->as_string);
1597	$cf::MAP{$self->path} = $self;
1598
1599	$self->save;
1600	}
1601
1602	sub reset {	1721	sub reset {
1603	my ($self) = @_;	1722	my ($self) = @_;
1604		1723
1605	my $lock = cf::lock_acquire "map_data:" . $self->path;	1724	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		1725
1607	return if $self->players;	1726	return if $self->players;
1608	return if $self->{path}{user_rel};#d#	1727	return if $self->isa ("ext::map_per_player");#d#
1609		1728
1610	warn "resetting map ", $self->path;#d#	1729	warn "resetting map ", $self->path;
		1730
		1731	$self->in_memory (cf::MAP_SWAPPED);
		1732
		1733	# need to save uniques path
		1734	unless ($self->{deny_save}) {
		1735	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1736
		1737	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1738	if $uniq;
		1739	}
1611		1740
1612	delete $cf::MAP{$self->path};	1741	delete $cf::MAP{$self->path};
		1742
		1743	$self->clear;
1613		1744
1614	$_->clear_links_to ($self) for values %cf::MAP;	1745	$_->clear_links_to ($self) for values %cf::MAP;
1615		1746
1616	$self->unlink_save;	1747	$self->unlink_save;
1617	$self->destroy;	1748	$self->destroy;
…		…
1620	my $nuke_counter = "aaaa";	1751	my $nuke_counter = "aaaa";
1621		1752
1622	sub nuke {	1753	sub nuke {
1623	my ($self) = @_;	1754	my ($self) = @_;
1624		1755
		1756	delete $cf::MAP{$self->path};
		1757
		1758	$self->unlink_save;
		1759
		1760	bless $self, "cf::map";
		1761	delete $self->{deny_reset};
1625	$self->{deny_save} = 1;	1762	$self->{deny_save} = 1;
1626	$self->reset_timeout (1);	1763	$self->reset_timeout (1);
1627	$self->rename ("{nuke}/" . ($nuke_counter++));	1764	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1765
		1766	$cf::MAP{$self->path} = $self;
		1767
1628	$self->reset; # polite request, might not happen	1768	$self->reset; # polite request, might not happen
1629	}	1769	}
1630		1770
1631	sub customise_for {
1632	my ($map, $ob) = @_;
1633
1634	if ($map->per_player) {
1635	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1636	}
1637
1638	$map
1639	}
1640
1641	=item cf::map::unique_maps	1771	=item cf::map::unique_maps
1642		1772
1643	Returns an arrayref of cf::path's of all shared maps that have	1773	Returns an arrayref of paths of all shared maps that have
1644	instantiated unique items. May block.	1774	instantiated unique items. May block.
1645		1775
1646	=cut	1776	=cut
1647		1777
1648	sub unique_maps() {	1778	sub unique_maps() {
1649	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1779	my $files = aio_readdir $UNIQUEDIR
1650	or return;	1780	or return;
1651		1781
1652	my @paths;	1782	my @paths;
1653		1783
1654	for (@$files) {	1784	for (@$files) {
1655	utf8::decode $_;	1785	utf8::decode $_;
1656	next if /\.pst$/;	1786	next if /\.pst$/;
1657	next unless /^$PATH_SEP/o;	1787	next unless /^$PATH_SEP/o;
1658		1788
1659	push @paths, new cf::path $_;	1789	push @paths, cf::map::normalise $_;
1660	}	1790	}
1661		1791
1662	\@paths	1792	\@paths
1663	}	1793	}
1664		1794
…		…
1739		1869
1740	=item $player_object->enter_link	1870	=item $player_object->enter_link
1741		1871
1742	Freezes the player and moves him/her to a special map (C<{link}>).	1872	Freezes the player and moves him/her to a special map (C<{link}>).
1743		1873
1744	The player should be reaosnably safe there for short amounts of time. You	1874	The player should be reasonably safe there for short amounts of time. You
1745	I<MUST> call C<leave_link> as soon as possible, though.	1875	I<MUST> call C<leave_link> as soon as possible, though.
1746		1876
		1877	Will never block.
		1878
1747	=item $player_object->leave_link ($map, $x, $y)	1879	=item $player_object->leave_link ($map, $x, $y)
1748		1880
1749	Moves the player out of the specila link map onto the given map. If the	1881	Moves the player out of the special C<{link}> map onto the specified
1750	map is not valid (or omitted), the player will be moved back to the	1882	map. If the map is not valid (or omitted), the player will be moved back
1751	location he/she was before the call to C<enter_link>, or, if that fails,	1883	to the location he/she was before the call to C<enter_link>, or, if that
1752	to the emergency map position.	1884	fails, to the emergency map position.
1753		1885
1754	Might block.	1886	Might block.
1755		1887
1756	=cut	1888	=cut
		1889
		1890	sub link_map {
		1891	unless ($LINK_MAP) {
		1892	$LINK_MAP = cf::map::find "{link}"
		1893	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1894	$LINK_MAP->load;
		1895	}
		1896
		1897	$LINK_MAP
		1898	}
1757		1899
1758	sub cf::object::player::enter_link {	1900	sub cf::object::player::enter_link {
1759	my ($self) = @_;	1901	my ($self) = @_;
1760		1902
1761	$self->deactivate_recursive;	1903	$self->deactivate_recursive;
1762		1904
1763	return if $self->map == $LINK_MAP;	1905	return if UNIVERSAL::isa $self->map, "ext::map_link";
1764		1906
1765	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1907	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1766	if $self->map;	1908	if $self->map && $self->map->{path} ne "{link}";
1767		1909
1768	$self->enter_map ($LINK_MAP, 20, 20);	1910	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1769	}	1911	}
1770		1912
1771	sub cf::object::player::leave_link {	1913	sub cf::object::player::leave_link {
1772	my ($self, $map, $x, $y) = @_;	1914	my ($self, $map, $x, $y) = @_;
		1915
		1916	return unless $self->contr->active;
1773		1917
1774	my $link_pos = delete $self->{_link_pos};	1918	my $link_pos = delete $self->{_link_pos};
1775		1919
1776	unless ($map) {	1920	unless ($map) {
1777	# restore original map position	1921	# restore original map position
…		…
1795	$map->load;	1939	$map->load;
1796	$map->load_diag;	1940	$map->load_diag;
1797		1941
1798	return unless $self->contr->active;	1942	return unless $self->contr->active;
1799	$self->activate_recursive;	1943	$self->activate_recursive;
		1944
		1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1800	$self->enter_map ($map, $x, $y);	1946	$self->enter_map ($map, $x, $y);
1801	}	1947	}
1802		1948
1803	cf::player->attach (
1804	on_logout => sub {
1805	my ($pl) = @_;
1806
1807	# abort map switching before logout
1808	if ($pl->ob->{_link_pos}) {
1809	cf::sync_job {
1810	$pl->ob->leave_link
1811	};
1812	}
1813	},
1814	on_login => sub {
1815	my ($pl) = @_;
1816
1817	# try to abort aborted map switching on player login :)
1818	# should happen only on crashes
1819	if ($pl->ob->{_link_pos}) {
1820	$pl->ob->enter_link;
1821	(async {
1822	# we need this sleep as the login has a concurrent enter_exit running
1823	# and this sleep increases chances of the player not ending up in scorn
1824	$pl->ob->reply (undef,
1825	"There was an internal problem at your last logout, "
1826	. "the server will try to bring you to your intended destination in a second.",
1827	cf::NDI_RED);
1828	Coro::Timer::sleep 1;
1829	$pl->ob->leave_link;
1830	})->prio (2);
1831	}
1832	},
1833	);
1834
1835	=item $player_object->goto ($path, $x, $y)	1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1836		1950
		1951	Moves the player to the given map-path and coordinates by first freezing
		1952	her, loading and preparing them map, calling the provided $check callback
		1953	that has to return the map if sucecssful, and then unfreezes the player on
		1954	the new (success) or old (failed) map position.
		1955
1837	=cut	1956	=cut
		1957
		1958	our $GOTOGEN;
1838		1959
1839	sub cf::object::player::goto {	1960	sub cf::object::player::goto {
1840	my ($self, $path, $x, $y) = @_;	1961	my ($self, $path, $x, $y, $check) = @_;
1841		1962
1842	$path = new cf::path $path;	1963	# do generation counting so two concurrent goto's will be executed in-order
		1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1843		1965
1844	$self->enter_link;	1966	$self->enter_link;
1845		1967
1846	(async {	1968	(async {
		1969	my $map = eval {
1847	my $map = cf::map::find $path->as_string;	1970	my $map = cf::map::find $path;
		1971
		1972	if ($map) {
1848	$map = $map->customise_for ($self) if $map;	1973	$map = $map->customise_for ($self);
1849		1974	$map = $check->($map) if $check && $map;
1850	# warn "entering ", $map->path, " at ($x, $y)\n"	1975	} else {
1851	# if $map;
1852
1853	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1976	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1977	}
1854		1978
		1979	$map
		1980	};
		1981
		1982	if ($@) {
		1983	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1984	LOG llevError | logBacktrace, Carp::longmess $@;
		1985	}
		1986
		1987	if ($gen == $self->{_goto_generation}) {
		1988	delete $self->{_goto_generation};
1855	$self->leave_link ($map, $x, $y);	1989	$self->leave_link ($map, $x, $y);
		1990	}
1856	})->prio (1);	1991	})->prio (1);
1857	}	1992	}
1858		1993
1859	=item $player_object->enter_exit ($exit_object)	1994	=item $player_object->enter_exit ($exit_object)
1860		1995
…		…
1862		1997
1863	sub parse_random_map_params {	1998	sub parse_random_map_params {
1864	my ($spec) = @_;	1999	my ($spec) = @_;
1865		2000
1866	my $rmp = { # defaults	2001	my $rmp = { # defaults
1867	xsize => 10,	2002	xsize => (cf::rndm 15, 40),
1868	ysize => 10,	2003	ysize => (cf::rndm 15, 40),
		2004	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2005	#layout => string,
1869	};	2006	};
1870		2007
1871	for (split /\n/, $spec) {	2008	for (split /\n/, $spec) {
1872	my ($k, $v) = split /\s+/, $_, 2;	2009	my ($k, $v) = split /\s+/, $_, 2;
1873		2010
…		…
1877	$rmp	2014	$rmp
1878	}	2015	}
1879		2016
1880	sub prepare_random_map {	2017	sub prepare_random_map {
1881	my ($exit) = @_;	2018	my ($exit) = @_;
		2019
		2020	my $guard = cf::lock_acquire "exit_prepare:$exit";
1882		2021
1883	# all this does is basically replace the /! path by	2022	# all this does is basically replace the /! path by
1884	# a new random map path (?random/...) with a seed	2023	# a new random map path (?random/...) with a seed
1885	# that depends on the exit object	2024	# that depends on the exit object
1886		2025
1887	my $rmp = parse_random_map_params $exit->msg;	2026	my $rmp = parse_random_map_params $exit->msg;
1888		2027
1889	if ($exit->map) {	2028	if ($exit->map) {
1890	$rmp->{region} = $exit->map->region_name;	2029	$rmp->{region} = $exit->region->name;
1891	$rmp->{origin_map} = $exit->map->path;	2030	$rmp->{origin_map} = $exit->map->path;
1892	$rmp->{origin_x} = $exit->x;	2031	$rmp->{origin_x} = $exit->x;
1893	$rmp->{origin_y} = $exit->y;	2032	$rmp->{origin_y} = $exit->y;
1894	}	2033	}
1895		2034
1896	$rmp->{random_seed} ||= $exit->random_seed;	2035	$rmp->{random_seed} ||= $exit->random_seed;
1897		2036
1898	my $data = cf::to_json $rmp;	2037	my $data = cf::to_json $rmp;
1899	my $md5 = Digest::MD5::md5_hex $data;	2038	my $md5 = Digest::MD5::md5_hex $data;
		2039	my $meta = "$RANDOMDIR/$md5.meta";
1900		2040
1901	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2041	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1902	aio_write $fh, 0, (length $data), $data, 0;	2042	aio_write $fh, 0, (length $data), $data, 0;
		2043	undef $fh;
		2044	aio_rename "$meta~", $meta;
1903		2045
1904	$exit->slaying ("?random/$md5");	2046	$exit->slaying ("?random/$md5");
1905	$exit->msg (undef);	2047	$exit->msg (undef);
1906	}	2048	}
1907	}	2049	}
1908		2050
1909	sub cf::object::player::enter_exit {	2051	sub cf::object::player::enter_exit {
1910	my ($self, $exit) = @_;	2052	my ($self, $exit) = @_;
1911		2053
1912	return unless $self->type == cf::PLAYER;	2054	return unless $self->type == cf::PLAYER;
		2055
		2056	if ($exit->slaying eq "/!") {
		2057	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2058	# the problem is that $exit might not survive long enough
		2059	# so it needs to be done right now, right here
		2060	cf::sync_job { prepare_random_map $exit };
		2061	}
		2062
		2063	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2064	my $hp = $exit->stats->hp;
		2065	my $sp = $exit->stats->sp;
1913		2066
1914	$self->enter_link;	2067	$self->enter_link;
1915		2068
1916	(async {	2069	(async {
1917	$self->deactivate_recursive; # just to be sure	2070	$self->deactivate_recursive; # just to be sure
1918	unless (eval {	2071	unless (eval {
1919	prepare_random_map $exit	2072	$self->goto ($slaying, $hp, $sp);
1920	if $exit->slaying eq "/!";
1921
1922	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1923	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1924		2073
1925	1;	2074	1;
1926	}) {	2075	}) {
1927	$self->message ("Something went wrong deep within the crossfire server. "	2076	$self->message ("Something went wrong deep within the crossfire server. "
1928	. "I'll try to bring you back to the map you were before. "	2077	. "I'll try to bring you back to the map you were before. "
1929	. "Please report this to the dungeon master!",	2078	. "Please report this to the dungeon master!",
1930	cf::NDI_UNIQUE | cf::NDI_RED);	2079	cf::NDI_UNIQUE | cf::NDI_RED);
1931		2080
1932	warn "ERROR in enter_exit: $@";	2081	warn "ERROR in enter_exit: $@";
1933	$self->leave_link;	2082	$self->leave_link;
1934	}	2083	}
1935	})->prio (1);	2084	})->prio (1);
…		…
1948		2097
1949	sub cf::client::send_drawinfo {	2098	sub cf::client::send_drawinfo {
1950	my ($self, $text, $flags) = @_;	2099	my ($self, $text, $flags) = @_;
1951		2100
1952	utf8::encode $text;	2101	utf8::encode $text;
1953	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2102	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1954	}	2103	}
1955		2104
		2105	=item $client->ext_event ($type, %msg)
		2106
		2107	Sends an exti event to the client.
		2108
		2109	=cut
		2110
		2111	sub cf::client::ext_event($$%) {
		2112	my ($self, $type, %msg) = @_;
		2113
		2114	$msg{msgtype} = "event_$type";
		2115	$self->send_packet ("ext " . cf::to_json \%msg);
		2116	}
1956		2117
1957	=item $success = $client->query ($flags, "text", \&cb)	2118	=item $success = $client->query ($flags, "text", \&cb)
1958		2119
1959	Queues a query to the client, calling the given callback with	2120	Queues a query to the client, calling the given callback with
1960	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2121	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1989	# get handled first	2150	# get handled first
1990	my $queue = delete $ns->{query_queue}	2151	my $queue = delete $ns->{query_queue}
1991	or return; # be conservative, not sure how that can happen, but we saw a crash here	2152	or return; # be conservative, not sure how that can happen, but we saw a crash here
1992		2153
1993	(shift @$queue)->[1]->($msg);	2154	(shift @$queue)->[1]->($msg);
		2155	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1994		2156
1995	push @{ $ns->{query_queue} }, @$queue;	2157	push @{ $ns->{query_queue} }, @$queue;
1996		2158
1997	if (@{ $ns->{query_queue} } == @$queue) {	2159	if (@{ $ns->{query_queue} } == @$queue) {
1998	if (@$queue) {	2160	if (@$queue) {
…		…
2056		2218
2057	# here we export the classes and methods available to script code	2219	# here we export the classes and methods available to script code
2058		2220
2059	=pod	2221	=pod
2060		2222
2061	The following fucntions and emthods are available within a safe environment:	2223	The following functions and methods are available within a safe environment:
2062		2224
2063	cf::object contr pay_amount pay_player map	2225	cf::object contr pay_amount pay_player map
2064	cf::object::player player	2226	cf::object::player player
2065	cf::player peaceful	2227	cf::player peaceful
2066	cf::map trigger	2228	cf::map trigger
…		…
2151	#############################################################################	2313	#############################################################################
2152		2314
2153	=head2 EXTENSION DATABASE SUPPORT	2315	=head2 EXTENSION DATABASE SUPPORT
2154		2316
2155	Crossfire maintains a very simple database for extension use. It can	2317	Crossfire maintains a very simple database for extension use. It can
2156	currently store anything that can be serialised using Storable, which	2318	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2157	excludes objects.	2319	convert to/from binary).
2158		2320
2159	The parameter C<$family> should best start with the name of the extension	2321	The parameter C<$family> should best start with the name of the extension
2160	using it, it should be unique.	2322	using it, it should be unique.
2161		2323
2162	=over 4	2324	=over 4
2163		2325
2164	=item $hashref = cf::db_get $family
2165
2166	Return a hashref for use by the extension C<$family>, which can be
2167	modified. After modifications, you have to call C<cf::db_dirty> or
2168	C<cf::db_sync>.
2169
2170	=item $value = cf::db_get $family => $key	2326	=item $value = cf::db_get $family => $key
2171		2327
2172	Returns a single value from the database	2328	Returns a single value from the database.
2173
2174	=item cf::db_put $family => $hashref
2175
2176	Stores the given family hashref into the database. Updates are delayed, if
2177	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2178		2329
2179	=item cf::db_put $family => $key => $value	2330	=item cf::db_put $family => $key => $value
2180		2331
2181	Stores the given C<$value> in the family hash. Updates are delayed, if you	2332	Stores the given C<$value> in the family.
2182	want the data to be synced to disk immediately, use C<cf::db_sync>.
2183
2184	=item cf::db_dirty
2185
2186	Marks the database as dirty, to be updated at a later time.
2187
2188	=item cf::db_sync
2189
2190	Immediately write the database to disk I<if it is dirty>.
2191		2333
2192	=cut	2334	=cut
2193		2335
2194	our $DB;	2336	our $DB;
2195		2337
2196	{	2338	sub db_init {
2197	my $path = cf::localdir . "/database.pst";	2339	unless ($DB) {
		2340	$DB = BDB::db_create $DB_ENV;
2198		2341
2199	sub db_load() {	2342	cf::sync_job {
2200	$DB = stat $path ? Storable::retrieve $path : { };	2343	eval {
2201	}	2344	$DB->set_flags (BDB::CHKSUM);
2202		2345
2203	my $pid;	2346	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2204		2347	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2205	sub db_save() {	2348	cf::cleanup "db_open(db): $!" if $!;
2206	waitpid $pid, 0 if $pid;	2349	};
2207	if (0 == ($pid = fork)) {	2350	cf::cleanup "db_open(db): $@" if $@;
2208	$DB->{_meta}{version} = 1;
2209	Storable::nstore $DB, "$path~";
2210	rename "$path~", $path;
2211	cf::_exit 0 if defined $pid;
2212	}	2351	};
2213	}
2214
2215	my $dirty;
2216
2217	sub db_sync() {
2218	db_save if $dirty;
2219	undef $dirty;
2220	}
2221
2222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2223	db_sync;
2224	});	2352	}
		2353	}
2225		2354
2226	sub db_dirty() {
2227	$dirty = 1;
2228	$idle->start;
2229	}
2230
2231	sub db_get($;$) {	2355	sub db_get($$) {
2232	@_ >= 2	2356	my $key = "$_[0]/$_[1]";
2233	? $DB->{$_[0]}{$_[1]}
2234	: ($DB->{$_[0]} ||= { })
2235	}
2236		2357
		2358	cf::sync_job {
		2359	BDB::db_get $DB, undef, $key, my $data;
		2360
		2361	$! ? ()
		2362	: $data
		2363	}
		2364	}
		2365
2237	sub db_put($$;$) {	2366	sub db_put($$$) {
2238	if (@_ >= 3) {	2367	BDB::dbreq_pri 4;
2239	$DB->{$_[0]}{$_[1]} = $_[2];	2368	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2240	} else {	2369	}
2241	$DB->{$_[0]} = $_[1];
2242	}
2243	db_dirty;
2244	}
2245		2370
2246	cf::global->attach (	2371	=item cf::cache $id => [$paths...], $processversion => $process
2247	prio => 10000,	2372
2248	on_cleanup => sub {	2373	Generic caching function that returns the value of the resource $id,
2249	db_sync;	2374	caching and regenerating as required.
		2375
		2376	This function can block.
		2377
		2378	=cut
		2379
		2380	sub cache {
		2381	my ($id, $src, $processversion, $process) = @_;
		2382
		2383	my $meta =
		2384	join "\x00",
		2385	$processversion,
		2386	map {
		2387	aio_stat $_
		2388	and Carp::croak "$_: $!";
		2389
		2390	($_, (stat _)[7,9])
		2391	} @$src;
		2392
		2393	my $dbmeta = db_get cache => "$id/meta";
		2394	if ($dbmeta ne $meta) {
		2395	# changed, we may need to process
		2396
		2397	my @data;
		2398	my $md5;
		2399
		2400	for (0 .. $#$src) {
		2401	0 <= aio_load $src->[$_], $data[$_]
		2402	or Carp::croak "$src->[$_]: $!";
2250	},	2403	}
2251	);	2404
		2405	# if processing is expensive, check
		2406	# checksum first
		2407	if (1) {
		2408	$md5 =
		2409	join "\x00",
		2410	$processversion,
		2411	map {
		2412	Coro::cede;
		2413	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2414	} 0.. $#$src;
		2415
		2416
		2417	my $dbmd5 = db_get cache => "$id/md5";
		2418	if ($dbmd5 eq $md5) {
		2419	db_put cache => "$id/meta", $meta;
		2420
		2421	return db_get cache => "$id/data";
		2422	}
		2423	}
		2424
		2425	my $t1 = Time::HiRes::time;
		2426	my $data = $process->(\@data);
		2427	my $t2 = Time::HiRes::time;
		2428
		2429	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2430
		2431	db_put cache => "$id/data", $data;
		2432	db_put cache => "$id/md5" , $md5;
		2433	db_put cache => "$id/meta", $meta;
		2434
		2435	return $data;
		2436	}
		2437
		2438	db_get cache => "$id/data"
		2439	}
		2440
		2441	=item fork_call { }, $args
		2442
		2443	Executes the given code block with the given arguments in a seperate
		2444	process, returning the results. Everything must be serialisable with
		2445	Coro::Storable. May, of course, block. Note that the executed sub may
		2446	never block itself or use any form of Event handling.
		2447
		2448	=cut
		2449
		2450	sub fork_call(&@) {
		2451	my ($cb, @args) = @_;
		2452
		2453	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2454	# or die "socketpair: $!";
		2455	pipe my $fh1, my $fh2
		2456	or die "pipe: $!";
		2457
		2458	if (my $pid = fork) {
		2459	close $fh2;
		2460
		2461	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2462	$res = Coro::Storable::thaw $res;
		2463
		2464	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2465
		2466	die $$res unless "ARRAY" eq ref $res;
		2467
		2468	return wantarray ? @$res : $res->[-1];
		2469	} else {
		2470	reset_signals;
		2471	local $SIG{__WARN__};
		2472	local $SIG{__DIE__};
		2473	eval {
		2474	close $fh1;
		2475
		2476	my @res = eval { $cb->(@args) };
		2477	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2478	};
		2479
		2480	warn $@ if $@;
		2481	_exit 0;
		2482	}
2252	}	2483	}
2253		2484
2254	#############################################################################	2485	#############################################################################
2255	# the server's main()	2486	# the server's init and main functions
		2487
		2488	sub load_facedata($) {
		2489	my ($path) = @_;
		2490
		2491	warn "loading facedata from $path\n";
		2492
		2493	my $facedata;
		2494	0 < aio_load $path, $facedata
		2495	or die "$path: $!";
		2496
		2497	$facedata = Coro::Storable::thaw $facedata;
		2498
		2499	$facedata->{version} == 2
		2500	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2501
		2502	{
		2503	my $faces = $facedata->{faceinfo};
		2504
		2505	while (my ($face, $info) = each %$faces) {
		2506	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2510	Coro::cede;
		2511	}
		2512
		2513	while (my ($face, $info) = each %$faces) {
		2514	next unless $info->{smooth};
		2515	my $idx = cf::face::find $face
		2516	or next;
		2517	if (my $smooth = cf::face::find $info->{smooth}) {
		2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2519	} else {
		2520	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2521	}
		2522	Coro::cede;
		2523	}
		2524	}
		2525
		2526	{
		2527	my $anims = $facedata->{animinfo};
		2528
		2529	while (my ($anim, $info) = each %$anims) {
		2530	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2531	Coro::cede;
		2532	}
		2533
		2534	cf::anim::invalidate_all; # d'oh
		2535	}
		2536
		2537	1
		2538	}
		2539
		2540	sub reload_regions {
		2541	load_resource_file "$MAPDIR/regions"
		2542	or die "unable to load regions file\n";
		2543	}
		2544
		2545	sub reload_facedata {
		2546	load_facedata "$DATADIR/facedata"
		2547	or die "unable to load facedata\n";
		2548	}
		2549
		2550	sub reload_archetypes {
		2551	load_resource_file "$DATADIR/archetypes"
		2552	or die "unable to load archetypes\n";
		2553	}
		2554
		2555	sub reload_treasures {
		2556	load_resource_file "$DATADIR/treasures"
		2557	or die "unable to load treasurelists\n";
		2558	}
		2559
		2560	sub reload_resources {
		2561	warn "reloading resource files...\n";
		2562
		2563	reload_regions;
		2564	reload_facedata;
		2565	#reload_archetypes;#d#
		2566	reload_archetypes;
		2567	reload_treasures;
		2568
		2569	warn "finished reloading resource files\n";
		2570	}
		2571
		2572	sub init {
		2573	reload_resources;
		2574	}
2256		2575
2257	sub cfg_load {	2576	sub cfg_load {
2258	open my $fh, "<:utf8", cf::confdir . "/config"	2577	open my $fh, "<:utf8", "$CONFDIR/config"
2259	or return;	2578	or return;
2260		2579
2261	local $/;	2580	local $/;
2262	*CFG = YAML::Syck::Load <$fh>;	2581	*CFG = YAML::Syck::Load <$fh>;
2263		2582
…		…
2277		2596
2278	sub main {	2597	sub main {
2279	# we must not ever block the main coroutine	2598	# we must not ever block the main coroutine
2280	local $Coro::idle = sub {	2599	local $Coro::idle = sub {
2281	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2600	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2601	(async {
2282	async { Event::one_event };	2602	Event::one_event;
		2603	})->prio (Coro::PRIO_MAX);
2283	};	2604	};
2284		2605
2285	cfg_load;	2606	cfg_load;
2286	db_load;	2607	db_init;
2287	load_extensions;	2608	load_extensions;
		2609
		2610	$TICK_WATCHER->start;
2288	Event::loop;	2611	Event::loop;
2289	}	2612	}
2290		2613
2291	#############################################################################	2614	#############################################################################
2292	# initialisation and cleanup	2615	# initialisation and cleanup
2293		2616
2294	# install some emergency cleanup handlers	2617	# install some emergency cleanup handlers
2295	BEGIN {	2618	BEGIN {
2296	for my $signal (qw(INT HUP TERM)) {	2619	for my $signal (qw(INT HUP TERM)) {
2297	Event->signal (	2620	Event->signal (
		2621	reentrant => 0,
2298	data => WF_AUTOCANCEL,	2622	data => WF_AUTOCANCEL,
2299	signal => $signal,	2623	signal => $signal,
		2624	prio => 0,
2300	cb => sub {	2625	cb => sub {
2301	cf::cleanup "SIG$signal";	2626	cf::cleanup "SIG$signal";
2302	},	2627	},
2303	);	2628	);
2304	}	2629	}
2305	}	2630	}
…		…
2310	warn "enter emergency perl save\n";	2635	warn "enter emergency perl save\n";
2311		2636
2312	cf::sync_job {	2637	cf::sync_job {
2313	# use a peculiar iteration method to avoid tripping on perl	2638	# use a peculiar iteration method to avoid tripping on perl
2314	# refcount bugs in for. also avoids problems with players	2639	# refcount bugs in for. also avoids problems with players
2315	# and maps saved/Destroyed asynchronously.	2640	# and maps saved/destroyed asynchronously.
2316	warn "begin emergency player save\n";	2641	warn "begin emergency player save\n";
2317	for my $login (keys %cf::PLAYER) {	2642	for my $login (keys %cf::PLAYER) {
2318	my $pl = $cf::PLAYER{$login} or next;	2643	my $pl = $cf::PLAYER{$login} or next;
2319	$pl->valid or next;	2644	$pl->valid or next;
2320	$pl->save;	2645	$pl->save;
…		…
2326	my $map = $cf::MAP{$path} or next;	2651	my $map = $cf::MAP{$path} or next;
2327	$map->valid or next;	2652	$map->valid or next;
2328	$map->save;	2653	$map->save;
2329	}	2654	}
2330	warn "end emergency map save\n";	2655	warn "end emergency map save\n";
		2656
		2657	warn "begin emergency database checkpoint\n";
		2658	BDB::db_env_txn_checkpoint $DB_ENV;
		2659	warn "end emergency database checkpoint\n";
2331	};	2660	};
2332		2661
2333	warn "leave emergency perl save\n";	2662	warn "leave emergency perl save\n";
2334	}	2663	}
2335		2664
		2665	sub post_cleanup {
		2666	my ($make_core) = @_;
		2667
		2668	warn Carp::longmess "post_cleanup backtrace"
		2669	if $make_core;
		2670	}
		2671
2336	sub reload() {	2672	sub do_reload_perl() {
2337	# can/must only be called in main	2673	# can/must only be called in main
2338	if ($Coro::current != $Coro::main) {	2674	if ($Coro::current != $Coro::main) {
2339	warn "can only reload from main coroutine\n";	2675	warn "can only reload from main coroutine";
2340	return;	2676	return;
2341	}	2677	}
2342		2678
2343	warn "reloading...";	2679	warn "reloading...";
2344		2680
2345	my $guard = freeze_mainloop;	2681	warn "entering sync_job";
		2682
		2683	cf::sync_job {
		2684	cf::write_runtime; # external watchdog should not bark
2346	cf::emergency_save;	2685	cf::emergency_save;
		2686	cf::write_runtime; # external watchdog should not bark
2347		2687
2348	eval {	2688	warn "syncing database to disk";
		2689	BDB::db_env_txn_checkpoint $DB_ENV;
		2690
2349	# if anything goes wrong in here, we should simply crash as we already saved	2691	# if anything goes wrong in here, we should simply crash as we already saved
2350		2692
2351	# cancel all watchers	2693	warn "cancelling all WF_AUTOCANCEL watchers";
2352	for (Event::all_watchers) {	2694	for (Event::all_watchers) {
2353	$_->cancel if $_->data & WF_AUTOCANCEL;	2695	$_->cancel if $_->data & WF_AUTOCANCEL;
2354	}	2696	}
2355		2697
		2698	warn "flushing outstanding aio requests";
		2699	for (;;) {
		2700	BDB::flush;
		2701	IO::AIO::flush;
		2702	Coro::cede;
		2703	last unless IO::AIO::nreqs || BDB::nreqs;
		2704	warn "iterate...";
		2705	}
		2706
		2707	++$RELOAD;
		2708
2356	# cancel all extension coros	2709	warn "cancelling all extension coros";
2357	$_->cancel for values %EXT_CORO;	2710	$_->cancel for values %EXT_CORO;
2358	%EXT_CORO = ();	2711	%EXT_CORO = ();
2359		2712
2360	# unload all extensions	2713	warn "removing commands";
2361	for (@exts) {	2714	%COMMAND = ();
		2715
		2716	warn "removing ext commands";
		2717	%EXTCMD = ();
		2718
		2719	warn "unloading/nuking all extensions";
		2720	for my $pkg (@EXTS) {
2362	warn "unloading <$_>";	2721	warn "... unloading $pkg";
2363	unload_extension $_;	2722
		2723	if (my $cb = $pkg->can ("unload")) {
		2724	eval {
		2725	$cb->($pkg);
		2726	1
		2727	} or warn "$pkg unloaded, but with errors: $@";
2364	}	2728	}
2365		2729
		2730	warn "... nuking $pkg";
		2731	Symbol::delete_package $pkg;
		2732	}
		2733
2366	# unload all modules loaded from $LIBDIR	2734	warn "unloading all perl modules loaded from $LIBDIR";
2367	while (my ($k, $v) = each %INC) {	2735	while (my ($k, $v) = each %INC) {
2368	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2736	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2369		2737
2370	warn "removing <$k>";	2738	warn "... unloading $k";
2371	delete $INC{$k};	2739	delete $INC{$k};
2372		2740
2373	$k =~ s/\.pm$//;	2741	$k =~ s/\.pm$//;
2374	$k =~ s/\//::/g;	2742	$k =~ s/\//::/g;
2375		2743
…		…
2378	}	2746	}
2379		2747
2380	Symbol::delete_package $k;	2748	Symbol::delete_package $k;
2381	}	2749	}
2382		2750
2383	# sync database to disk
2384	cf::db_sync;
2385	IO::AIO::flush;
2386
2387	# get rid of safe::, as good as possible	2751	warn "getting rid of safe::, as good as possible";
2388	Symbol::delete_package "safe::$_"	2752	Symbol::delete_package "safe::$_"
2389	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2753	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2390		2754
2391	# remove register_script_function callbacks
2392	# TODO
2393
2394	# unload cf.pm "a bit"	2755	warn "unloading cf.pm \"a bit\"";
2395	delete $INC{"cf.pm"};	2756	delete $INC{"cf.pm"};
		2757	delete $INC{"cf/pod.pm"};
2396		2758
2397	# don't, removes xs symbols, too,	2759	# don't, removes xs symbols, too,
2398	# and global variables created in xs	2760	# and global variables created in xs
2399	#Symbol::delete_package __PACKAGE__;	2761	#Symbol::delete_package __PACKAGE__;
2400		2762
2401	# reload cf.pm	2763	warn "unload completed, starting to reload now";
		2764
2402	warn "reloading cf.pm";	2765	warn "reloading cf.pm";
2403	require cf;	2766	require cf;
2404	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2767	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2405		2768
2406	# load config and database again	2769	warn "loading config and database again";
2407	cf::cfg_load;	2770	cf::cfg_load;
2408	cf::db_load;
2409		2771
2410	# load extensions
2411	warn "load extensions";	2772	warn "loading extensions";
2412	cf::load_extensions;	2773	cf::load_extensions;
2413		2774
2414	# reattach attachments to objects	2775	warn "reattaching attachments to objects/players";
2415	warn "reattach";	2776	_global_reattach; # objects, sockets
2416	_global_reattach;	2777	warn "reattaching attachments to maps";
2417	reattach $_ for values %MAP;	2778	reattach $_ for values %MAP;
2418	};	2779	warn "reattaching attachments to players";
		2780	reattach $_ for values %PLAYER;
2419		2781
2420	if ($@) {	2782	warn "leaving sync_job";
		2783
		2784	1
		2785	} or do {
2421	warn $@;	2786	warn $@;
2422	warn "error while reloading, exiting.";	2787	warn "error while reloading, exiting.";
2423	exit 1;	2788	exit 1;
2424	}	2789	};
2425		2790
2426	warn "reloaded successfully";	2791	warn "reloaded";
2427	};	2792	};
2428		2793
2429	#############################################################################	2794	our $RELOAD_WATCHER; # used only during reload
2430		2795
2431	unless ($LINK_MAP) {	2796	sub reload_perl() {
2432	$LINK_MAP = cf::map::new;	2797	# doing reload synchronously and two reloads happen back-to-back,
		2798	# coro crashes during coro_state_free->destroy here.
2433		2799
2434	$LINK_MAP->width (41);	2800	$RELOAD_WATCHER ||= Event->timer (
2435	$LINK_MAP->height (41);	2801	reentrant => 0,
2436	$LINK_MAP->alloc;
2437	$LINK_MAP->path ("{link}");
2438	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2439	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2440
2441	# dirty hack because... archetypes are not yet loaded
2442	Event->timer (
2443	after => 10,	2802	after => 0,
		2803	data => WF_AUTOCANCEL,
2444	cb => sub {	2804	cb => sub {
2445	$_[0]->w->cancel;	2805	do_reload_perl;
2446		2806	undef $RELOAD_WATCHER;
2447	# provide some exits "home"
2448	my $exit = cf::object::new "exit";
2449
2450	$exit->slaying ($EMERGENCY_POSITION->[0]);
2451	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2452	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2453
2454	$LINK_MAP->insert ($exit->clone, 19, 19);
2455	$LINK_MAP->insert ($exit->clone, 19, 20);
2456	$LINK_MAP->insert ($exit->clone, 19, 21);
2457	$LINK_MAP->insert ($exit->clone, 20, 19);
2458	$LINK_MAP->insert ($exit->clone, 20, 21);
2459	$LINK_MAP->insert ($exit->clone, 21, 19);
2460	$LINK_MAP->insert ($exit->clone, 21, 20);
2461	$LINK_MAP->insert ($exit->clone, 21, 21);
2462
2463	$exit->destroy;
2464	});	2807	},
2465		2808	);
2466	$LINK_MAP->{deny_save} = 1;
2467	$LINK_MAP->{deny_reset} = 1;
2468
2469	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2470	}	2809	}
2471
2472	register "<global>", __PACKAGE__;
2473		2810
2474	register_command "reload" => sub {	2811	register_command "reload" => sub {
2475	my ($who, $arg) = @_;	2812	my ($who, $arg) = @_;
2476		2813
2477	if ($who->flag (FLAG_WIZ)) {	2814	if ($who->flag (FLAG_WIZ)) {
2478	$who->message ("start of reload.");
2479	reload;
2480	$who->message ("end of reload.");	2815	$who->message ("reloading server.");
		2816	async { reload_perl };
2481	}	2817	}
2482	};	2818	};
2483		2819
2484	unshift @INC, $LIBDIR;	2820	unshift @INC, $LIBDIR;
2485		2821
		2822	my $bug_warning = 0;
		2823
		2824	our @WAIT_FOR_TICK;
		2825	our @WAIT_FOR_TICK_BEGIN;
		2826
		2827	sub wait_for_tick {
		2828	return unless $TICK_WATCHER->is_active;
		2829	return if $Coro::current == $Coro::main;
		2830
		2831	my $signal = new Coro::Signal;
		2832	push @WAIT_FOR_TICK, $signal;
		2833	$signal->wait;
		2834	}
		2835
		2836	sub wait_for_tick_begin {
		2837	return unless $TICK_WATCHER->is_active;
		2838	return if $Coro::current == $Coro::main;
		2839
		2840	my $signal = new Coro::Signal;
		2841	push @WAIT_FOR_TICK_BEGIN, $signal;
		2842	$signal->wait;
		2843	}
		2844
		2845	my $min = 1e6;#d#
		2846	my $avg = 10;
2486	$TICK_WATCHER = Event->timer (	2847	$TICK_WATCHER = Event->timer (
2487	reentrant => 0,	2848	reentrant => 0,
		2849	parked => 1,
2488	prio => 0,	2850	prio => 0,
2489	at => $NEXT_TICK || $TICK,	2851	at => $NEXT_TICK || $TICK,
2490	data => WF_AUTOCANCEL,	2852	data => WF_AUTOCANCEL,
2491	cb => sub {	2853	cb => sub {
		2854	if ($Coro::current != $Coro::main) {
		2855	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2856	unless ++$bug_warning > 10;
		2857	return;
		2858	}
		2859
		2860	$NOW = $tick_start = Event::time;
		2861
2492	cf::server_tick; # one server iteration	2862	cf::server_tick; # one server iteration
		2863
		2864	0 && sync_job {#d#
		2865	for(1..10) {
		2866	my $t = Event::time;
		2867	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2868	or die;
		2869
		2870	$map->width (50);
		2871	$map->height (50);
		2872	$map->alloc;
		2873	$map->_load_objects ("/tmp/x.map", 1);
		2874	my $t = Event::time - $t;
		2875
		2876	#next unless $t < 0.0013;#d#
		2877	if ($t < $min) {
		2878	$min = $t;
		2879	}
		2880	$avg = $avg * 0.99 + $t * 0.01;
		2881	}
		2882	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2883	exit 0;
		2884	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2885	};
		2886
2493	$RUNTIME += $TICK;	2887	$RUNTIME += $TICK;
2494	$NEXT_TICK += $TICK;	2888	$NEXT_TICK += $TICK;
2495		2889
2496	$WAIT_FOR_TICK->broadcast;	2890	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2497	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2891	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2892	Coro::async_pool {
		2893	write_runtime
		2894	or warn "ERROR: unable to write runtime file: $!";
		2895	};
		2896	}
		2897
		2898	# my $AFTER = Event::time;
		2899	# warn $AFTER - $NOW;#d#
		2900
		2901	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2902	$sig->send;
		2903	}
		2904	while (my $sig = shift @WAIT_FOR_TICK) {
		2905	$sig->send;
		2906	}
		2907
		2908	$NOW = Event::time;
2498		2909
2499	# if we are delayed by four ticks or more, skip them all	2910	# if we are delayed by four ticks or more, skip them all
2500	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2911	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2501		2912
2502	$TICK_WATCHER->at ($NEXT_TICK);	2913	$TICK_WATCHER->at ($NEXT_TICK);
2503	$TICK_WATCHER->start;	2914	$TICK_WATCHER->start;
		2915
		2916	$LOAD = ($NOW - $tick_start) / $TICK;
		2917	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2918
		2919	_post_tick;
		2920
		2921
2504	},	2922	},
2505	);	2923	);
2506		2924
		2925	{
2507	IO::AIO::max_poll_time $TICK * 0.2;	2926	BDB::max_poll_time $TICK * 0.1;
2508		2927	$BDB_POLL_WATCHER = Event->io (
2509	Event->io (	2928	reentrant => 0,
2510	fd => IO::AIO::poll_fileno,	2929	fd => BDB::poll_fileno,
2511	poll => 'r',	2930	poll => 'r',
2512	prio => 5,	2931	prio => 0,
2513	data => WF_AUTOCANCEL,
2514	cb => \&IO::AIO::poll_cb,
2515	);
2516
2517	Event->timer (
2518	data => WF_AUTOCANCEL,	2932	data => WF_AUTOCANCEL,
2519	after => 0,	2933	cb => \&BDB::poll_cb,
2520	interval => 10,	2934	);
2521	cb => sub {	2935	BDB::min_parallel 8;
2522	(Coro::unblock_sub {	2936
2523	write_runtime	2937	BDB::set_sync_prepare {
2524	or warn "ERROR: unable to write runtime file: $!";	2938	my $status;
		2939	my $current = $Coro::current;
		2940	(
		2941	sub {
		2942	$status = $!;
		2943	$current->ready; undef $current;
		2944	},
		2945	sub {
		2946	Coro::schedule while defined $current;
		2947	$! = $status;
		2948	},
		2949	)
		2950	};
		2951
		2952	unless ($DB_ENV) {
		2953	$DB_ENV = BDB::db_env_create;
		2954
		2955	cf::sync_job {
		2956	eval {
		2957	BDB::db_env_open
		2958	$DB_ENV,
		2959	$BDBDIR,
		2960	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2961	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2962	0666;
		2963
		2964	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2965
		2966	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2967	$DB_ENV->set_lk_detect;
		2968	};
		2969
		2970	cf::cleanup "db_env_open(db): $@" if $@;
2525	})->();	2971	};
2526	},	2972	}
2527	);	2973	}
		2974
		2975	{
		2976	IO::AIO::min_parallel 8;
		2977
		2978	undef $Coro::AIO::WATCHER;
		2979	IO::AIO::max_poll_time $TICK * 0.1;
		2980	$AIO_POLL_WATCHER = Event->io (
		2981	reentrant => 0,
		2982	data => WF_AUTOCANCEL,
		2983	fd => IO::AIO::poll_fileno,
		2984	poll => 'r',
		2985	prio => 6,
		2986	cb => \&IO::AIO::poll_cb,
		2987	);
		2988	}
		2989
		2990	my $_log_backtrace;
		2991
		2992	sub _log_backtrace {
		2993	my ($msg, @addr) = @_;
		2994
		2995	$msg =~ s/\n//;
		2996
		2997	# limit the # of concurrent backtraces
		2998	if ($_log_backtrace < 2) {
		2999	++$_log_backtrace;
		3000	async {
		3001	my @bt = fork_call {
		3002	@addr = map { sprintf "%x", $_ } @addr;
		3003	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3004	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3005	or die "addr2line: $!";
		3006
		3007	my @funcs;
		3008	my @res = <$fh>;
		3009	chomp for @res;
		3010	while (@res) {
		3011	my ($func, $line) = splice @res, 0, 2, ();
		3012	push @funcs, "[$func] $line";
		3013	}
		3014
		3015	@funcs
		3016	};
		3017
		3018	LOG llevInfo, "[ABT] $msg\n";
		3019	LOG llevInfo, "[ABT] $_\n" for @bt;
		3020	--$_log_backtrace;
		3021	};
		3022	} else {
		3023	LOG llevInfo, "[ABT] $msg\n";
		3024	LOG llevInfo, "[ABT] [suppressed]\n";
		3025	}
		3026	}
		3027
		3028	# load additional modules
		3029	use cf::pod;
2528		3030
2529	END { cf::emergency_save }	3031	END { cf::emergency_save }
2530		3032
2531	1	3033	1
2532		3034

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