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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.156 by root, Tue Jan 9 22:07:08 2007 UTC vs.
Revision 1.273 by root, Mon Jun 4 12:19:08 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~", $runtime
359	and return;	426	and return;
360		427
		428	warn "runtime file written.\n";#d#
		429
361	1	430	1
362	}	431	}
363		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
364	=back	444	=back
365		445
366	=cut	446	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489		447
490	#############################################################################	448	#############################################################################
491		449
492	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
493		451
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	578	our @CB_MAP = ();
621		579
622	my %attachment;	580	my %attachment;
623		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
624	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
626		590
627	use sort 'stable';	591	use sort 'stable';
628		592
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
663		627
664	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		632
669	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	634	my $pkg = shift @arg;
671		635
672	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
713	if (ref $_[0]) {	677	if (ref $_[0]) {
714	_object_attach @_;	678	_object_attach @_;
715	} else {	679	} else {
716	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
717	}	681	}
		682	_recalc_want;
718	};	683	};
719		684
720	# all those should be optimised	685	# all those should be optimised
721	sub cf::attachable::detach {	686	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
726	reattach ($obj);	691	reattach ($obj);
727	} else {	692	} else {
728	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
729	}	694	}
		695	_recalc_want;
730	};	696	};
731		697
732	sub cf::attachable::attached {	698	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
734		700
…		…
799	# object support	765	# object support
800		766
801	sub reattach {	767	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		772
805	my $registry = $obj->registry;	773	my $registry = $obj->registry;
806		774
807	@$registry = ();	775	@$registry = ();
808		776
…		…
855	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
856		824
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
860	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
861	close $fh;	829	close $fh;
862		830
863	if (@$objs) {	831	if (@$objs) {
864	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
865	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
868	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
869	close $fh;	837	close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
871	}	839	}
872	} else {	840	} else {
873	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
940	=cut	908	=cut
941		909
942	sub register_extcmd {	910	sub register_extcmd {
943	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
944		912
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
949	}	914	}
950		915
951	cf::player->attach (	916	cf::player->attach (
952	on_command => sub {	917	on_command => sub {
953	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
966		931
967	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
968		933
969	if (ref $msg) {	934	if (ref $msg) {
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
972	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
973	}	938	}
974	}	939	}
975	} else {	940	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
978		943
979	cf::override;	944	cf::override;
980	},	945	},
981	);	946	);
982		947
983	sub register {
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {	948	sub load_extension {
990	my ($path) = @_;	949	my ($path) = @_;
991		950
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
993	my $base = $1;	952	my $base = $1;
994	my $pkg = $1;	953	my $pkg = $1;
995	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
997		956
998	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
999		958
1000	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
1001	or die "$path: $!";	960	or die "$path: $!";
1002		961
1003	my $source =	962	my $source =
1004	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
1007	. "\n};\n1";	966	. "\n};\n1";
1008		967
1009	eval $source	968	unless (eval $source) {
1010	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
1011	: "extension disabled.\n";	970	: "extension disabled.\n";
1012		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1013	push @exts, $pkg;	972	warn $@;
1014	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
1015		974	exit 1;
1016	# no strict 'refs';	975	}
1017	# @{"$pkg\::ISA"} = ext::;	976	die $@;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }	977	}
1032		978
1033	# remove commands	979	push @EXTS, $pkg;
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}
1042	}
1043
1044	# remove extcmds
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}	980	}
1058		981
1059	sub load_extensions {	982	sub load_extensions {
1060	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	984	next unless -r $ext;
…		…
1065	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
1066	}	989	}
1067	}	990	}
1068		991
1069	#############################################################################	992	#############################################################################
1070	# load/save/clean perl data associated with a map
1071
1072	*cf::mapsupport::on_clean = sub {
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		993
1085	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1086		995
1087	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1088		997
…		…
1101	Returns the given player object, loading it if necessary (might block).	1010	Returns the given player object, loading it if necessary (might block).
1102		1011
1103	=cut	1012	=cut
1104		1013
1105	sub playerdir($) {	1014	sub playerdir($) {
1106	cf::localdir	1015	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1017	}
1112		1018
1113	sub path($) {	1019	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1021
1116	(playerdir $login) . "/$login.pl"	1022	(playerdir $login) . "/playerdata"
1117	}	1023	}
1118		1024
1119	sub find_active($) {	1025	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1026	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1027	and $cf::PLAYER{$_[0]}->active
…		…
1124		1030
1125	sub exists($) {	1031	sub exists($) {
1126	my ($login) = @_;	1032	my ($login) = @_;
1127		1033
1128	$cf::PLAYER{$login}	1034	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1035	or cf::sync_job { !aio_stat path $login }
1130	}	1036	}
1131		1037
1132	sub find($) {	1038	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1039	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1040	my $login = $_[0];
1135		1041
1136	my $guard = cf::lock_acquire "user_find:$login";	1042	my $guard = cf::lock_acquire "user_find:$login";
1137		1043
1138	$cf::PLAYER{$_[0]} || do {	1044	$cf::PLAYER{$_[0]} || do {
		1045	# rename old playerfiles to new ones
		1046	#TODO: remove when no longer required
		1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1050	aio_unlink +(playerdir $login) . "/$login.pl";
		1051
1139	my $pl = load_pl path $login	1052	my $pl = load_pl path $login
1140	or return;	1053	or return;
1141	$cf::PLAYER{$login} = $pl	1054	$cf::PLAYER{$login} = $pl
1142	}	1055	}
1143	}	1056	}
…		…
1180		1093
1181	=cut	1094	=cut
1182		1095
1183	sub quit_character {	1096	sub quit_character {
1184	my ($pl) = @_;	1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
1185		1100
1186	$pl->{deny_save} = 1;	1101	$pl->{deny_save} = 1;
1187	$pl->password ("*"); # this should lock out the player until we nuked the dir	1102	$pl->password ("*"); # this should lock out the player until we nuked the dir
1188		1103
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1194	my $path = playerdir $pl;	1109	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1110	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1111	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1112	delete $cf::PLAYER{$pl->ob->name};
1198	$pl->destroy;	1113	$pl->destroy;
		1114
		1115	my $prefix = qr<^~\Q$name\E/>;
		1116
		1117	# nuke player maps
		1118	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1119
1199	IO::AIO::aio_rmtree $temp;	1120	IO::AIO::aio_rmtree $temp;
		1121	}
		1122
		1123	=item $pl->kick
		1124
		1125	Kicks a player out of the game. This destroys the connection.
		1126
		1127	=cut
		1128
		1129	sub kick {
		1130	my ($pl, $kicker) = @_;
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1133	$pl->killer ("kicked");
		1134	$pl->ns->destroy;
1200	}	1135	}
1201		1136
1202	=item cf::player::list_logins	1137	=item cf::player::list_logins
1203		1138
1204	Returns am arrayref of all valid playernames in the system, can take a	1139	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1140	while and may block, so not sync_job-capable, ever.
1206		1141
1207	=cut	1142	=cut
1208		1143
1209	sub list_logins {	1144	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1145	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1146	or return [];
1212		1147
1213	my @logins;	1148	my @logins;
1214		1149
1215	for my $login (@$dirs) {	1150	for my $login (@$dirs) {
…		…
1224	\@logins	1159	\@logins
1225	}	1160	}
1226		1161
1227	=item $player->maps	1162	=item $player->maps
1228		1163
1229	Returns an arrayref of cf::path's of all maps that are private for this	1164	Returns an arrayref of map paths that are private for this
1230	player. May block.	1165	player. May block.
1231		1166
1232	=cut	1167	=cut
1233		1168
1234	sub maps($) {	1169	sub maps($) {
1235	my ($pl) = @_;	1170	my ($pl) = @_;
		1171
		1172	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1173
1237	my $files = aio_readdir playerdir $pl	1174	my $files = aio_readdir playerdir $pl
1238	or return;	1175	or return;
1239		1176
1240	my @paths;	1177	my @paths;
1241		1178
1242	for (@$files) {	1179	for (@$files) {
1243	utf8::decode $_;	1180	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1181	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1182	next unless /^$PATH_SEP/o;
1246		1183
1247	s/$PATH_SEP/\//g;	1184	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1185	}
1250		1186
1251	\@paths	1187	\@paths
1252	}	1188	}
1253		1189
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1255		1191
1256	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1257		1193
1258	=cut	1194	=cut
1259		1195
1260	sub ext_reply($$$%) {	1196	sub ext_reply($$%) {
1261	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1262		1198
1263	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1264		1200
1265	$self->send ("ext " . cf::to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
1266	}	1202	}
1267		1203
1268	package cf;	1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		1211	my ($self, $type, %msg) = @_;
		1212
		1213	$self->ns->ext_event ($type, %msg);
		1214	}
		1215
		1216	=head3 cf::region
		1217
		1218	=over 4
		1219
		1220	=cut
		1221
		1222	package cf::region;
		1223
		1224	=item cf::region::find_by_path $path
		1225
		1226	Tries to decuce the probable region for a map knowing only its path.
		1227
		1228	=cut
		1229
		1230	sub find_by_path($) {
		1231	my ($path) = @_;
		1232
		1233	my ($match, $specificity);
		1234
		1235	for my $region (list) {
		1236	if ($region->match && $path =~ $region->match) {
		1237	($match, $specificity) = ($region, $region->specificity)
		1238	if $region->specificity > $specificity;
		1239	}
		1240	}
		1241
		1242	$match
		1243	}
1269		1244
1270	=back	1245	=back
1271
1272		1246
1273	=head3 cf::map	1247	=head3 cf::map
1274		1248
1275	=over 4	1249	=over 4
1276		1250
…		…
1279	package cf::map;	1253	package cf::map;
1280		1254
1281	use Fcntl;	1255	use Fcntl;
1282	use Coro::AIO;	1256	use Coro::AIO;
1283		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1284	our $MAX_RESET = 3600;	1262	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1263	our $DEFAULT_RESET = 3000;
1286		1264
1287	sub generate_random_map {	1265	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1268	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1277	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region})	1279	(cf::region::find $rmp->{region}), $rmp->{custom}
		1280	)
		1281	}
		1282
		1283	=item cf::map->register ($regex, $prio)
		1284
		1285	Register a handler for the map path matching the given regex at the
		1286	givne priority (higher is better, built-in handlers have priority 0, the
		1287	default).
		1288
		1289	=cut
		1290
		1291	sub register {
		1292	my (undef, $regex, $prio) = @_;
		1293	my $pkg = caller;
		1294
		1295	no strict;
		1296	push @{"$pkg\::ISA"}, __PACKAGE__;
		1297
		1298	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1299	}
		1300
		1301	# also paths starting with '/'
		1302	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1303
		1304	sub thawer_merge {
		1305	my ($self, $merge) = @_;
		1306
		1307	# we have to keep some variables in memory intact
		1308	local $self->{path};
		1309	local $self->{load_path};
		1310	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"
1304	}	1410	}
1305		1411
1306	# and all this just because we cannot iterate over	1412	# and all this just because we cannot iterate over
1307	# all maps in C++...	1413	# all maps in C++...
1308	sub change_all_map_light {	1414	sub change_all_map_light {
…		…
1310		1416
1311	$_->change_map_light ($change)	1417	$_->change_map_light ($change)
1312	for grep $_->outdoor, values %cf::MAP;	1418	for grep $_->outdoor, values %cf::MAP;
1313	}	1419	}
1314		1420
		1421	sub unlink_save {
		1422	my ($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
1315	sub try_load_header($) {	1429	sub load_header_from($) {
1316	my ($path) = @_;	1430	my ($self, $path) = @_;
1317		1431
1318	utf8::encode $path;	1432	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1433	#aio_open $path, O_RDONLY, 0
		1434	# or return;
		1435
		1436	$self->_load_header ($path)
1320	or return;	1437	or return;
1321		1438
1322	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
1323	or return;	1482	or return;
		1483	$self->prepare_orig;
		1484	}
1324		1485
1325	# for better error messages only, will be overwritten	1486	$self->default_region (cf::region::find_by_path $self->{path})
1326	$map->path ($path);	1487	unless $self->default_region;
1327		1488
1328	$map->load_header ($path)	1489	1
1329	or return;
1330
1331	$map->{load_path} = $path;
1332
1333	$map
1334	}	1490	}
1335		1491
1336	sub find;	1492	sub find;
1337	sub find {	1493	sub find {
1338	my ($path, $origin) = @_;	1494	my ($path, $origin) = @_;
1339		1495
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	1496	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		1497
1345	cf::lock_wait "map_find:$key";	1498	cf::lock_wait "map_find:$path";
1346		1499
1347	$cf::MAP{$key} || do {	1500	$cf::MAP{$path} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	1501	my $guard = cf::lock_acquire "map_find:$path";
1349		1502	my $map = new_from_path cf::map $path
1350	# do it the slow way
1351	my $map = try_load_header $path->save_path;
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	1503	or return;
1369		1504
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	1505	$map->{last_save} = $cf::RUNTIME;
1382		1506
1383	Coro::cede;	1507	$map->load_header
		1508	or return;
1384		1509
1385	if ($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;
1386	$map->reset;	1513	$map->reset;
1387	undef $guard;	1514	undef $guard;
1388	$map = find $path	1515	return find $path;
1389	or return;
1390	}	1516	}
1391		1517
1392	$cf::MAP{$key} = $map	1518	$cf::MAP{$path} = $map
1393	}	1519	}
1394	}	1520	}
		1521
		1522	sub pre_load { }
		1523	sub post_load { }
1395		1524
1396	sub load {	1525	sub load {
1397	my ($self) = @_;	1526	my ($self) = @_;
1398		1527
		1528	local $self->{deny_reset} = 1; # loading can take a long time
		1529
1399	my $path = $self->{path};	1530	my $path = $self->{path};
		1531
		1532	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1533	my $guard = cf::lock_acquire "map_load:$path";
1401		1534
1402	return if $self->in_memory != cf::MAP_SWAPPED;	1535	return if $self->in_memory != cf::MAP_SWAPPED;
1403		1536
1404	$self->in_memory (cf::MAP_LOADING);	1537	$self->in_memory (cf::MAP_LOADING);
1405		1538
1406	$self->alloc;	1539	$self->alloc;
		1540
		1541	$self->pre_load;
		1542	Coro::cede;
		1543
1407	$self->load_objects ($self->{load_path}, 1)	1544	$self->_load_objects ($self->{load_path}, 1)
1408	or return;	1545	or return;
1409		1546
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1547	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1411	if delete $self->{load_original};	1548	if delete $self->{load_original};
1412		1549
1413	if (my $uniq = $path->uniq_path) {	1550	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	1551	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	1552	if (aio_open $uniq, O_RDONLY, 0) {
1416	$self->clear_unique_items;	1553	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	1554	$self->_load_objects ($uniq, 0);
1418	}	1555	}
1419	}	1556	}
1420		1557
1421	Coro::cede;	1558	Coro::cede;
1422
1423	# now do the right thing for maps	1559	# now do the right thing for maps
1424	$self->link_multipart_objects;	1560	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	1561	$self->difficulty ($self->estimate_difficulty)
1435	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;
1436	$self->activate;	1572	$self->activate;
1437	}	1573	}
1438		1574
1439	Coro::cede;
1440
1441	$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	$self
		1588	}
		1589
		1590	# find and load all maps in the 3x3 area around a map
		1591	sub load_diag {
		1592	my ($map) = @_;
		1593
		1594	my @diag; # diagonal neighbours
		1595
		1596	for (0 .. 3) {
		1597	my $neigh = $map->tile_path ($_)
		1598	or next;
		1599	$neigh = find $neigh, $map
		1600	or next;
		1601	$neigh->load;
		1602
		1603	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1604	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1605	}
		1606
		1607	for (@diag) {
		1608	my $neigh = find @$_
		1609	or next;
		1610	$neigh->load;
		1611	}
1442	}	1612	}
1443		1613
1444	sub find_sync {	1614	sub find_sync {
1445	my ($path, $origin) = @_;	1615	my ($path, $origin) = @_;
1446		1616
1447	cf::sync_job { cf::map::find $path, $origin }	1617	cf::sync_job { find $path, $origin }
1448	}	1618	}
1449		1619
1450	sub do_load_sync {	1620	sub do_load_sync {
1451	my ($map) = @_;	1621	my ($map) = @_;
1452		1622
1453	cf::sync_job { $map->load };	1623	cf::sync_job { $map->load };
1454	}	1624	}
1455		1625
		1626	our %MAP_PREFETCH;
		1627	our $MAP_PREFETCHER = undef;
		1628
		1629	sub find_async {
		1630	my ($path, $origin) = @_;
		1631
		1632	$path = normalise $path, $origin && $origin->{path};
		1633
		1634	if (my $map = $cf::MAP{$path}) {
		1635	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1636	}
		1637
		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	};
		1651	$MAP_PREFETCHER->prio (6);
		1652
		1653	()
		1654	}
		1655
1456	sub save {	1656	sub save {
1457	my ($self) = @_;	1657	my ($self) = @_;
1458		1658
1459	my $lock = cf::lock_acquire "map_data:" . $self->path;	1659	my $lock = cf::lock_acquire "map_data:" . $self->path;
1460		1660
1461	$self->{last_save} = $cf::RUNTIME;	1661	$self->{last_save} = $cf::RUNTIME;
1462		1662
1463	return unless $self->dirty;	1663	return unless $self->dirty;
1464		1664
1465	my $save = $self->{path}->save_path; utf8::encode $save;	1665	my $save = $self->save_path; utf8::encode $save;
1466	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1666	my $uniq = $self->uniq_path; utf8::encode $uniq;
1467		1667
1468	$self->{load_path} = $save;	1668	$self->{load_path} = $save;
1469		1669
1470	return if $self->{deny_save};	1670	return if $self->{deny_save};
1471		1671
…		…
1474	cf::async {	1674	cf::async {
1475	$_->contr->save for $self->players;	1675	$_->contr->save for $self->players;
1476	};	1676	};
1477		1677
1478	if ($uniq) {	1678	if ($uniq) {
1479	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1679	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1480	$self->save_objects ($uniq, cf::IO_UNIQUES);	1680	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1481	} else {	1681	} else {
1482	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1682	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1483	}	1683	}
1484	}	1684	}
1485		1685
1486	sub swap_out {	1686	sub swap_out {
1487	my ($self) = @_;	1687	my ($self) = @_;
…		…
1501		1701
1502	sub reset_at {	1702	sub reset_at {
1503	my ($self) = @_;	1703	my ($self) = @_;
1504		1704
1505	# TODO: safety, remove and allow resettable per-player maps	1705	# TODO: safety, remove and allow resettable per-player maps
1506	return 1e99 if $self->{path}{user_rel};	1706	return 1e99 if $self->isa ("ext::map_per_player");#d#
1507	return 1e99 if $self->{deny_reset};	1707	return 1e99 if $self->{deny_reset};
1508		1708
1509	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1709	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1510	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1710	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1511		1711
…		…
1516	my ($self) = @_;	1716	my ($self) = @_;
1517		1717
1518	$self->reset_at <= $cf::RUNTIME	1718	$self->reset_at <= $cf::RUNTIME
1519	}	1719	}
1520		1720
1521	sub unlink_save {
1522	my ($self) = @_;
1523
1524	utf8::encode (my $save = $self->{path}->save_path);
1525	aioreq_pri 3; IO::AIO::aio_unlink $save;
1526	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1527	}
1528
1529	sub rename {
1530	my ($self, $new_path) = @_;
1531
1532	$self->unlink_save;
1533
1534	delete $cf::MAP{$self->path};
1535	$self->{path} = new cf::path $new_path;
1536	$self->path ($self->{path}->as_string);
1537	$cf::MAP{$self->path} = $self;
1538
1539	$self->save;
1540	}
1541
1542	sub reset {	1721	sub reset {
1543	my ($self) = @_;	1722	my ($self) = @_;
1544		1723
1545	my $lock = cf::lock_acquire "map_data:" . $self->path;	1724	my $lock = cf::lock_acquire "map_data:$self->{path}";
1546		1725
1547	return if $self->players;	1726	return if $self->players;
1548	return if $self->{path}{user_rel};#d#	1727	return if $self->isa ("ext::map_per_player");#d#
1549		1728
1550	warn "resetting map ", $self->path;#d#	1729	warn "resetting map ", $self->path;#d#
1551		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	}
		1740
1552	delete $cf::MAP{$self->path};	1741	delete $cf::MAP{$self->path};
		1742
		1743	$self->clear;
1553		1744
1554	$_->clear_links_to ($self) for values %cf::MAP;	1745	$_->clear_links_to ($self) for values %cf::MAP;
1555		1746
1556	$self->unlink_save;	1747	$self->unlink_save;
1557	$self->destroy;	1748	$self->destroy;
…		…
1560	my $nuke_counter = "aaaa";	1751	my $nuke_counter = "aaaa";
1561		1752
1562	sub nuke {	1753	sub nuke {
1563	my ($self) = @_;	1754	my ($self) = @_;
1564		1755
		1756	delete $cf::MAP{$self->path};
		1757
		1758	$self->unlink_save;
		1759
		1760	bless $self, "cf::map";
		1761	delete $self->{deny_reset};
1565	$self->{deny_save} = 1;	1762	$self->{deny_save} = 1;
1566	$self->reset_timeout (1);	1763	$self->reset_timeout (1);
1567	$self->rename ("{nuke}/" . ($nuke_counter++));	1764	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1765
		1766	$cf::MAP{$self->path} = $self;
		1767
1568	$self->reset; # polite request, might not happen	1768	$self->reset; # polite request, might not happen
1569	}	1769	}
1570		1770
1571	sub customise_for {	1771	=item cf::map::unique_maps
1572	my ($map, $ob) = @_;
1573		1772
1574	if ($map->per_player) {	1773	Returns an arrayref of paths of all shared maps that have
1575	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1774	instantiated unique items. May block.
1576	}
1577		1775
1578	$map	1776	=cut
		1777
		1778	sub unique_maps() {
		1779	my $files = aio_readdir $UNIQUEDIR
		1780	or return;
		1781
		1782	my @paths;
		1783
		1784	for (@$files) {
		1785	utf8::decode $_;
		1786	next if /\.pst$/;
		1787	next unless /^$PATH_SEP/o;
		1788
		1789	push @paths, cf::map::normalise $_;
		1790	}
		1791
		1792	\@paths
1579	}	1793	}
1580		1794
1581	package cf;	1795	package cf;
1582		1796
1583	=back	1797	=back
…		…
1655		1869
1656	=item $player_object->enter_link	1870	=item $player_object->enter_link
1657		1871
1658	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}>).
1659		1873
1660	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
1661	I<MUST> call C<leave_link> as soon as possible, though.	1875	I<MUST> call C<leave_link> as soon as possible, though.
1662		1876
		1877	Will never block.
		1878
1663	=item $player_object->leave_link ($map, $x, $y)	1879	=item $player_object->leave_link ($map, $x, $y)
1664		1880
1665	Moves the player out of the specila link map onto the given map. If the	1881	Moves the player out of the special C<{link}> map onto the specified
1666	map is not valid (or omitted), the player will be moved back to the	1882	map. If the map is not valid (or omitted), the player will be moved back
1667	location he/she was before the call to C<enter_link>, or, if that fails,	1883	to the location he/she was before the call to C<enter_link>, or, if that
1668	to the emergency map position.	1884	fails, to the emergency map position.
1669		1885
1670	Might block.	1886	Might block.
1671		1887
1672	=cut	1888	=cut
		1889
		1890	sub link_map {
		1891	unless ($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	$LINK_MAP
		1898	}
1673		1899
1674	sub cf::object::player::enter_link {	1900	sub cf::object::player::enter_link {
1675	my ($self) = @_;	1901	my ($self) = @_;
1676		1902
1677	$self->deactivate_recursive;	1903	$self->deactivate_recursive;
1678		1904
1679	return if $self->map == $LINK_MAP;	1905	return if UNIVERSAL::isa $self->map, "ext::map_link";
1680		1906
1681	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1907	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1682	if $self->map;	1908	if $self->map && $self->map->{path} ne "{link}";
1683		1909
1684	$self->enter_map ($LINK_MAP, 20, 20);	1910	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1685	}	1911	}
1686		1912
1687	sub cf::object::player::leave_link {	1913	sub cf::object::player::leave_link {
1688	my ($self, $map, $x, $y) = @_;	1914	my ($self, $map, $x, $y) = @_;
		1915
		1916	return unless $self->contr->active;
1689		1917
1690	my $link_pos = delete $self->{_link_pos};	1918	my $link_pos = delete $self->{_link_pos};
1691		1919
1692	unless ($map) {	1920	unless ($map) {
1693	# restore original map position	1921	# restore original map position
…		…
1707	# use -1 or undef as default coordinates, not 0, 0	1935	# use -1 or undef as default coordinates, not 0, 0
1708	($x, $y) = ($map->enter_x, $map->enter_y)	1936	($x, $y) = ($map->enter_x, $map->enter_y)
1709	if $x <=0 && $y <= 0;	1937	if $x <=0 && $y <= 0;
1710		1938
1711	$map->load;	1939	$map->load;
		1940	$map->load_diag;
1712		1941
1713	return unless $self->contr->active;	1942	return unless $self->contr->active;
1714	$self->activate_recursive;	1943	$self->activate_recursive;
		1944
		1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1715	$self->enter_map ($map, $x, $y);	1946	$self->enter_map ($map, $x, $y);
1716	}	1947	}
1717		1948
1718	cf::player->attach (
1719	on_logout => sub {
1720	my ($pl) = @_;
1721
1722	# abort map switching before logout
1723	if ($pl->ob->{_link_pos}) {
1724	cf::sync_job {
1725	$pl->ob->leave_link
1726	};
1727	}
1728	},
1729	on_login => sub {
1730	my ($pl) = @_;
1731
1732	# try to abort aborted map switching on player login :)
1733	# should happen only on crashes
1734	if ($pl->ob->{_link_pos}) {
1735	$pl->ob->enter_link;
1736	(async {
1737	# we need this sleep as the login has a concurrent enter_exit running
1738	# and this sleep increases chances of the player not ending up in scorn
1739	$pl->ob->reply (undef,
1740	"There was an internal problem at your last logout, "
1741	. "the server will try to bring you to your intended destination in a second.",
1742	cf::NDI_RED);
1743	Coro::Timer::sleep 1;
1744	$pl->ob->leave_link;
1745	})->prio (2);
1746	}
1747	},
1748	);
1749
1750	=item $player_object->goto ($path, $x, $y)	1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1751		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
1752	=cut	1956	=cut
		1957
		1958	our $GOTOGEN;
1753		1959
1754	sub cf::object::player::goto {	1960	sub cf::object::player::goto {
1755	my ($self, $path, $x, $y) = @_;	1961	my ($self, $path, $x, $y, $check) = @_;
1756		1962
1757	$path = new cf::path $path;	1963	# do generation counting so two concurrent goto's will be executed in-order
1758	$path ne "/" or Carp::cluck ("oy");#d#	1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1759		1965
1760	$self->enter_link;	1966	$self->enter_link;
1761		1967
1762	(async {	1968	(async {
		1969	my $map = eval {
1763	my $map = cf::map::find $path->as_string;	1970	my $map = cf::map::find $path;
		1971
		1972	if ($map) {
1764	$map = $map->customise_for ($self) if $map;	1973	$map = $map->customise_for ($self);
1765		1974	$map = $check->($map) if $check && $map;
1766	# warn "entering ", $map->path, " at ($x, $y)\n"	1975	} else {
1767	# if $map;
1768
1769	$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	}
1770		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};
1771	$self->leave_link ($map, $x, $y);	1989	$self->leave_link ($map, $x, $y);
		1990	}
1772	})->prio (1);	1991	})->prio (1);
1773	}	1992	}
1774		1993
1775	=item $player_object->enter_exit ($exit_object)	1994	=item $player_object->enter_exit ($exit_object)
1776		1995
…		…
1778		1997
1779	sub parse_random_map_params {	1998	sub parse_random_map_params {
1780	my ($spec) = @_;	1999	my ($spec) = @_;
1781		2000
1782	my $rmp = { # defaults	2001	my $rmp = { # defaults
1783	xsize => 10,	2002	xsize => (cf::rndm 15, 40),
1784	ysize => 10,	2003	ysize => (cf::rndm 15, 40),
		2004	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2005	#layout => string,
1785	};	2006	};
1786		2007
1787	for (split /\n/, $spec) {	2008	for (split /\n/, $spec) {
1788	my ($k, $v) = split /\s+/, $_, 2;	2009	my ($k, $v) = split /\s+/, $_, 2;
1789		2010
…		…
1793	$rmp	2014	$rmp
1794	}	2015	}
1795		2016
1796	sub prepare_random_map {	2017	sub prepare_random_map {
1797	my ($exit) = @_;	2018	my ($exit) = @_;
		2019
		2020	my $guard = cf::lock_acquire "exit_prepare:$exit";
1798		2021
1799	# all this does is basically replace the /! path by	2022	# all this does is basically replace the /! path by
1800	# a new random map path (?random/...) with a seed	2023	# a new random map path (?random/...) with a seed
1801	# that depends on the exit object	2024	# that depends on the exit object
1802		2025
1803	my $rmp = parse_random_map_params $exit->msg;	2026	my $rmp = parse_random_map_params $exit->msg;
1804		2027
1805	if ($exit->map) {	2028	if ($exit->map) {
1806	$rmp->{region} = $exit->map->region_name;	2029	$rmp->{region} = $exit->region->name;
1807	$rmp->{origin_map} = $exit->map->path;	2030	$rmp->{origin_map} = $exit->map->path;
1808	$rmp->{origin_x} = $exit->x;	2031	$rmp->{origin_x} = $exit->x;
1809	$rmp->{origin_y} = $exit->y;	2032	$rmp->{origin_y} = $exit->y;
1810	}	2033	}
1811		2034
1812	$rmp->{random_seed} ||= $exit->random_seed;	2035	$rmp->{random_seed} ||= $exit->random_seed;
1813		2036
1814	my $data = cf::to_json $rmp;	2037	my $data = cf::to_json $rmp;
1815	my $md5 = Digest::MD5::md5_hex $data;	2038	my $md5 = Digest::MD5::md5_hex $data;
		2039	my $meta = "$RANDOMDIR/$md5.meta";
1816		2040
1817	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) {
1818	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;
1819		2045
1820	$exit->slaying ("?random/$md5");	2046	$exit->slaying ("?random/$md5");
1821	$exit->msg (undef);	2047	$exit->msg (undef);
1822	}	2048	}
1823	}	2049	}
1824		2050
1825	sub cf::object::player::enter_exit {	2051	sub cf::object::player::enter_exit {
1826	my ($self, $exit) = @_;	2052	my ($self, $exit) = @_;
1827		2053
1828	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;
1829		2066
1830	$self->enter_link;	2067	$self->enter_link;
1831		2068
1832	(async {	2069	(async {
1833	$self->deactivate_recursive; # just to be sure	2070	$self->deactivate_recursive; # just to be sure
1834	unless (eval {	2071	unless (eval {
1835	prepare_random_map $exit	2072	$self->goto ($slaying, $hp, $sp);
1836	if $exit->slaying eq "/!";
1837
1838	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1839	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1840		2073
1841	1;	2074	1;
1842	}) {	2075	}) {
1843	$self->message ("Something went wrong deep within the crossfire server. "	2076	$self->message ("Something went wrong deep within the crossfire server. "
1844	. "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. "
1845	. "Please report this to the dungeon master",	2078	. "Please report this to the dungeon master!",
1846	cf::NDI_UNIQUE | cf::NDI_RED);	2079	cf::NDI_UNIQUE | cf::NDI_RED);
1847		2080
1848	warn "ERROR in enter_exit: $@";	2081	warn "ERROR in enter_exit: $@";
1849	$self->leave_link;	2082	$self->leave_link;
1850	}	2083	}
1851	})->prio (1);	2084	})->prio (1);
…		…
1864		2097
1865	sub cf::client::send_drawinfo {	2098	sub cf::client::send_drawinfo {
1866	my ($self, $text, $flags) = @_;	2099	my ($self, $text, $flags) = @_;
1867		2100
1868	utf8::encode $text;	2101	utf8::encode $text;
1869	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2102	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1870	}	2103	}
1871		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	}
1872		2117
1873	=item $success = $client->query ($flags, "text", \&cb)	2118	=item $success = $client->query ($flags, "text", \&cb)
1874		2119
1875	Queues a query to the client, calling the given callback with	2120	Queues a query to the client, calling the given callback with
1876	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2121	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1905	# get handled first	2150	# get handled first
1906	my $queue = delete $ns->{query_queue}	2151	my $queue = delete $ns->{query_queue}
1907	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
1908		2153
1909	(shift @$queue)->[1]->($msg);	2154	(shift @$queue)->[1]->($msg);
		2155	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1910		2156
1911	push @{ $ns->{query_queue} }, @$queue;	2157	push @{ $ns->{query_queue} }, @$queue;
1912		2158
1913	if (@{ $ns->{query_queue} } == @$queue) {	2159	if (@{ $ns->{query_queue} } == @$queue) {
1914	if (@$queue) {	2160	if (@$queue) {
…		…
1972		2218
1973	# here we export the classes and methods available to script code	2219	# here we export the classes and methods available to script code
1974		2220
1975	=pod	2221	=pod
1976		2222
1977	The following fucntions and emthods are available within a safe environment:	2223	The following functions and methods are available within a safe environment:
1978		2224
1979	cf::object contr pay_amount pay_player map	2225	cf::object contr pay_amount pay_player map
1980	cf::object::player player	2226	cf::object::player player
1981	cf::player peaceful	2227	cf::player peaceful
1982	cf::map trigger	2228	cf::map trigger
…		…
2067	#############################################################################	2313	#############################################################################
2068		2314
2069	=head2 EXTENSION DATABASE SUPPORT	2315	=head2 EXTENSION DATABASE SUPPORT
2070		2316
2071	Crossfire maintains a very simple database for extension use. It can	2317	Crossfire maintains a very simple database for extension use. It can
2072	currently store anything that can be serialised using Storable, which	2318	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2073	excludes objects.	2319	convert to/from binary).
2074		2320
2075	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
2076	using it, it should be unique.	2322	using it, it should be unique.
2077		2323
2078	=over 4	2324	=over 4
2079		2325
2080	=item $hashref = cf::db_get $family
2081
2082	Return a hashref for use by the extension C<$family>, which can be
2083	modified. After modifications, you have to call C<cf::db_dirty> or
2084	C<cf::db_sync>.
2085
2086	=item $value = cf::db_get $family => $key	2326	=item $value = cf::db_get $family => $key
2087		2327
2088	Returns a single value from the database	2328	Returns a single value from the database.
2089
2090	=item cf::db_put $family => $hashref
2091
2092	Stores the given family hashref into the database. Updates are delayed, if
2093	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2094		2329
2095	=item cf::db_put $family => $key => $value	2330	=item cf::db_put $family => $key => $value
2096		2331
2097	Stores the given C<$value> in the family hash. Updates are delayed, if you	2332	Stores the given C<$value> in the family.
2098	want the data to be synced to disk immediately, use C<cf::db_sync>.
2099
2100	=item cf::db_dirty
2101
2102	Marks the database as dirty, to be updated at a later time.
2103
2104	=item cf::db_sync
2105
2106	Immediately write the database to disk I<if it is dirty>.
2107		2333
2108	=cut	2334	=cut
2109		2335
2110	our $DB;	2336	our $DB;
2111		2337
2112	{	2338	sub db_init {
2113	my $path = cf::localdir . "/database.pst";	2339	unless ($DB) {
		2340	$DB = BDB::db_create $DB_ENV;
2114		2341
2115	sub db_load() {	2342	cf::sync_job {
2116	$DB = stat $path ? Storable::retrieve $path : { };	2343	eval {
2117	}	2344	$DB->set_flags (BDB::CHKSUM);
2118		2345
2119	my $pid;	2346	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2120		2347	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2121	sub db_save() {	2348	cf::cleanup "db_open(db): $!" if $!;
2122	waitpid $pid, 0 if $pid;	2349	};
2123	if (0 == ($pid = fork)) {	2350	cf::cleanup "db_open(db): $@" if $@;
2124	$DB->{_meta}{version} = 1;
2125	Storable::nstore $DB, "$path~";
2126	rename "$path~", $path;
2127	cf::_exit 0 if defined $pid;
2128	}	2351	};
2129	}
2130
2131	my $dirty;
2132
2133	sub db_sync() {
2134	db_save if $dirty;
2135	undef $dirty;
2136	}
2137
2138	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2139	db_sync;
2140	});	2352	}
		2353	}
2141		2354
2142	sub db_dirty() {
2143	$dirty = 1;
2144	$idle->start;
2145	}
2146
2147	sub db_get($;$) {	2355	sub db_get($$) {
2148	@_ >= 2	2356	my $key = "$_[0]/$_[1]";
2149	? $DB->{$_[0]}{$_[1]}
2150	: ($DB->{$_[0]} ||= { })
2151	}
2152		2357
		2358	cf::sync_job {
		2359	BDB::db_get $DB, undef, $key, my $data;
		2360
		2361	$! ? ()
		2362	: $data
		2363	}
		2364	}
		2365
2153	sub db_put($$;$) {	2366	sub db_put($$$) {
2154	if (@_ >= 3) {	2367	BDB::dbreq_pri 4;
2155	$DB->{$_[0]}{$_[1]} = $_[2];	2368	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2156	} else {	2369	}
2157	$DB->{$_[0]} = $_[1];
2158	}
2159	db_dirty;
2160	}
2161		2370
2162	cf::global->attach (	2371	=item cf::cache $id => [$paths...], $processversion => $process
2163	prio => 10000,	2372
2164	on_cleanup => sub {	2373	Generic caching function that returns the value of the resource $id,
2165	db_sync;	2374	caching and regenerating as required.
		2375
		2376	This function can block.
		2377
		2378	=cut
		2379
		2380	sub cache {
		2381	my ($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 "$src->[$_]: $!";
2166	},	2403	}
2167	);	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	}
2168	}	2483	}
2169		2484
2170	#############################################################################	2485	#############################################################################
2171	# 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;
		2566	reload_treasures;
		2567
		2568	warn "finished reloading resource files\n";
		2569	}
		2570
		2571	sub init {
		2572	reload_resources;
		2573	}
2172		2574
2173	sub cfg_load {	2575	sub cfg_load {
2174	open my $fh, "<:utf8", cf::confdir . "/config"	2576	open my $fh, "<:utf8", "$CONFDIR/config"
2175	or return;	2577	or return;
2176		2578
2177	local $/;	2579	local $/;
2178	*CFG = YAML::Syck::Load <$fh>;	2580	*CFG = YAML::Syck::Load <$fh>;
2179		2581
…		…
2193		2595
2194	sub main {	2596	sub main {
2195	# we must not ever block the main coroutine	2597	# we must not ever block the main coroutine
2196	local $Coro::idle = sub {	2598	local $Coro::idle = sub {
2197	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2599	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2600	(async {
2198	async { Event::one_event };	2601	Event::one_event;
		2602	})->prio (Coro::PRIO_MAX);
2199	};	2603	};
2200		2604
2201	cfg_load;	2605	cfg_load;
2202	db_load;	2606	db_init;
2203	load_extensions;	2607	load_extensions;
		2608
		2609	$TICK_WATCHER->start;
2204	Event::loop;	2610	Event::loop;
2205	}	2611	}
2206		2612
2207	#############################################################################	2613	#############################################################################
2208	# initialisation and cleanup	2614	# initialisation and cleanup
2209		2615
2210	# install some emergency cleanup handlers	2616	# install some emergency cleanup handlers
2211	BEGIN {	2617	BEGIN {
2212	for my $signal (qw(INT HUP TERM)) {	2618	for my $signal (qw(INT HUP TERM)) {
2213	Event->signal (	2619	Event->signal (
		2620	reentrant => 0,
2214	data => WF_AUTOCANCEL,	2621	data => WF_AUTOCANCEL,
2215	signal => $signal,	2622	signal => $signal,
		2623	prio => 0,
2216	cb => sub {	2624	cb => sub {
2217	cf::cleanup "SIG$signal";	2625	cf::cleanup "SIG$signal";
2218	},	2626	},
2219	);	2627	);
2220	}	2628	}
2221	}	2629	}
…		…
2226	warn "enter emergency perl save\n";	2634	warn "enter emergency perl save\n";
2227		2635
2228	cf::sync_job {	2636	cf::sync_job {
2229	# use a peculiar iteration method to avoid tripping on perl	2637	# use a peculiar iteration method to avoid tripping on perl
2230	# refcount bugs in for. also avoids problems with players	2638	# refcount bugs in for. also avoids problems with players
2231	# and maps saved/Destroyed asynchronously.	2639	# and maps saved/destroyed asynchronously.
2232	warn "begin emergency player save\n";	2640	warn "begin emergency player save\n";
2233	for my $login (keys %cf::PLAYER) {	2641	for my $login (keys %cf::PLAYER) {
2234	my $pl = $cf::PLAYER{$login} or next;	2642	my $pl = $cf::PLAYER{$login} or next;
2235	$pl->valid or next;	2643	$pl->valid or next;
2236	$pl->save;	2644	$pl->save;
…		…
2242	my $map = $cf::MAP{$path} or next;	2650	my $map = $cf::MAP{$path} or next;
2243	$map->valid or next;	2651	$map->valid or next;
2244	$map->save;	2652	$map->save;
2245	}	2653	}
2246	warn "end emergency map save\n";	2654	warn "end emergency map save\n";
		2655
		2656	warn "begin emergency database checkpoint\n";
		2657	BDB::db_env_txn_checkpoint $DB_ENV;
		2658	warn "end emergency database checkpoint\n";
2247	};	2659	};
2248		2660
2249	warn "leave emergency perl save\n";	2661	warn "leave emergency perl save\n";
2250	}	2662	}
2251		2663
		2664	sub post_cleanup {
		2665	my ($make_core) = @_;
		2666
		2667	warn Carp::longmess "post_cleanup backtrace"
		2668	if $make_core;
		2669	}
		2670
2252	sub reload() {	2671	sub do_reload_perl() {
2253	# can/must only be called in main	2672	# can/must only be called in main
2254	if ($Coro::current != $Coro::main) {	2673	if ($Coro::current != $Coro::main) {
2255	warn "can only reload from main coroutine\n";	2674	warn "can only reload from main coroutine";
2256	return;	2675	return;
2257	}	2676	}
2258		2677
2259	warn "reloading...";	2678	warn "reloading...";
2260		2679
2261	my $guard = freeze_mainloop;	2680	warn "entering sync_job";
		2681
		2682	cf::sync_job {
		2683	cf::write_runtime; # external watchdog should not bark
2262	cf::emergency_save;	2684	cf::emergency_save;
		2685	cf::write_runtime; # external watchdog should not bark
2263		2686
2264	eval {	2687	warn "syncing database to disk";
		2688	BDB::db_env_txn_checkpoint $DB_ENV;
		2689
2265	# if anything goes wrong in here, we should simply crash as we already saved	2690	# if anything goes wrong in here, we should simply crash as we already saved
2266		2691
2267	# cancel all watchers	2692	warn "cancelling all WF_AUTOCANCEL watchers";
2268	for (Event::all_watchers) {	2693	for (Event::all_watchers) {
2269	$_->cancel if $_->data & WF_AUTOCANCEL;	2694	$_->cancel if $_->data & WF_AUTOCANCEL;
2270	}	2695	}
2271		2696
		2697	warn "flushing outstanding aio requests";
		2698	for (;;) {
		2699	BDB::flush;
		2700	IO::AIO::flush;
		2701	Coro::cede;
		2702	last unless IO::AIO::nreqs || BDB::nreqs;
		2703	warn "iterate...";
		2704	}
		2705
		2706	++$RELOAD;
		2707
2272	# cancel all extension coros	2708	warn "cancelling all extension coros";
2273	$_->cancel for values %EXT_CORO;	2709	$_->cancel for values %EXT_CORO;
2274	%EXT_CORO = ();	2710	%EXT_CORO = ();
2275		2711
2276	# unload all extensions	2712	warn "removing commands";
2277	for (@exts) {	2713	%COMMAND = ();
		2714
		2715	warn "removing ext commands";
		2716	%EXTCMD = ();
		2717
		2718	warn "unloading/nuking all extensions";
		2719	for my $pkg (@EXTS) {
2278	warn "unloading <$_>";	2720	warn "... unloading $pkg";
2279	unload_extension $_;	2721
		2722	if (my $cb = $pkg->can ("unload")) {
		2723	eval {
		2724	$cb->($pkg);
		2725	1
		2726	} or warn "$pkg unloaded, but with errors: $@";
2280	}	2727	}
2281		2728
		2729	warn "... nuking $pkg";
		2730	Symbol::delete_package $pkg;
		2731	}
		2732
2282	# unload all modules loaded from $LIBDIR	2733	warn "unloading all perl modules loaded from $LIBDIR";
2283	while (my ($k, $v) = each %INC) {	2734	while (my ($k, $v) = each %INC) {
2284	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2735	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2285		2736
2286	warn "removing <$k>";	2737	warn "... unloading $k";
2287	delete $INC{$k};	2738	delete $INC{$k};
2288		2739
2289	$k =~ s/\.pm$//;	2740	$k =~ s/\.pm$//;
2290	$k =~ s/\//::/g;	2741	$k =~ s/\//::/g;
2291		2742
…		…
2294	}	2745	}
2295		2746
2296	Symbol::delete_package $k;	2747	Symbol::delete_package $k;
2297	}	2748	}
2298		2749
2299	# sync database to disk
2300	cf::db_sync;
2301	IO::AIO::flush;
2302
2303	# get rid of safe::, as good as possible	2750	warn "getting rid of safe::, as good as possible";
2304	Symbol::delete_package "safe::$_"	2751	Symbol::delete_package "safe::$_"
2305	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2752	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2306		2753
2307	# remove register_script_function callbacks
2308	# TODO
2309
2310	# unload cf.pm "a bit"	2754	warn "unloading cf.pm \"a bit\"";
2311	delete $INC{"cf.pm"};	2755	delete $INC{"cf.pm"};
		2756	delete $INC{"cf/pod.pm"};
2312		2757
2313	# don't, removes xs symbols, too,	2758	# don't, removes xs symbols, too,
2314	# and global variables created in xs	2759	# and global variables created in xs
2315	#Symbol::delete_package __PACKAGE__;	2760	#Symbol::delete_package __PACKAGE__;
2316		2761
2317	# reload cf.pm	2762	warn "unload completed, starting to reload now";
		2763
2318	warn "reloading cf.pm";	2764	warn "reloading cf.pm";
2319	require cf;	2765	require cf;
2320	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2766	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2321		2767
2322	# load config and database again	2768	warn "loading config and database again";
2323	cf::cfg_load;	2769	cf::cfg_load;
2324	cf::db_load;
2325		2770
2326	# load extensions
2327	warn "load extensions";	2771	warn "loading extensions";
2328	cf::load_extensions;	2772	cf::load_extensions;
2329		2773
2330	# reattach attachments to objects	2774	warn "reattaching attachments to objects/players";
2331	warn "reattach";	2775	_global_reattach; # objects, sockets
2332	_global_reattach;	2776	warn "reattaching attachments to maps";
2333	reattach $_ for values %MAP;	2777	reattach $_ for values %MAP;
2334	};	2778	warn "reattaching attachments to players";
		2779	reattach $_ for values %PLAYER;
2335		2780
2336	if ($@) {	2781	warn "leaving sync_job";
		2782
		2783	1
		2784	} or do {
2337	warn $@;	2785	warn $@;
2338	warn "error while reloading, exiting.";	2786	warn "error while reloading, exiting.";
2339	exit 1;	2787	exit 1;
2340	}	2788	};
2341		2789
2342	warn "reloaded successfully";	2790	warn "reloaded";
2343	};	2791	};
2344		2792
2345	#############################################################################	2793	our $RELOAD_WATCHER; # used only during reload
2346		2794
2347	unless ($LINK_MAP) {	2795	sub reload_perl() {
2348	$LINK_MAP = cf::map::new;	2796	# doing reload synchronously and two reloads happen back-to-back,
		2797	# coro crashes during coro_state_free->destroy here.
2349		2798
2350	$LINK_MAP->width (41);	2799	$RELOAD_WATCHER ||= Event->timer (
2351	$LINK_MAP->height (41);	2800	reentrant => 0,
2352	$LINK_MAP->alloc;
2353	$LINK_MAP->path ("{link}");
2354	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2355	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2356
2357	# dirty hack because... archetypes are not yet loaded
2358	Event->timer (
2359	after => 10,	2801	after => 0,
		2802	data => WF_AUTOCANCEL,
2360	cb => sub {	2803	cb => sub {
2361	$_[0]->w->cancel;	2804	do_reload_perl;
2362		2805	undef $RELOAD_WATCHER;
2363	# provide some exits "home"
2364	my $exit = cf::object::new "exit";
2365
2366	$exit->slaying ($EMERGENCY_POSITION->[0]);
2367	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2368	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2369
2370	$LINK_MAP->insert ($exit->clone, 19, 19);
2371	$LINK_MAP->insert ($exit->clone, 19, 20);
2372	$LINK_MAP->insert ($exit->clone, 19, 21);
2373	$LINK_MAP->insert ($exit->clone, 20, 19);
2374	$LINK_MAP->insert ($exit->clone, 20, 21);
2375	$LINK_MAP->insert ($exit->clone, 21, 19);
2376	$LINK_MAP->insert ($exit->clone, 21, 20);
2377	$LINK_MAP->insert ($exit->clone, 21, 21);
2378
2379	$exit->destroy;
2380	});	2806	},
2381		2807	);
2382	$LINK_MAP->{deny_save} = 1;
2383	$LINK_MAP->{deny_reset} = 1;
2384
2385	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2386	}	2808	}
2387
2388	register "<global>", __PACKAGE__;
2389		2809
2390	register_command "reload" => sub {	2810	register_command "reload" => sub {
2391	my ($who, $arg) = @_;	2811	my ($who, $arg) = @_;
2392		2812
2393	if ($who->flag (FLAG_WIZ)) {	2813	if ($who->flag (FLAG_WIZ)) {
2394	$who->message ("start of reload.");
2395	reload;
2396	$who->message ("end of reload.");	2814	$who->message ("reloading server.");
		2815	async { reload_perl };
2397	}	2816	}
2398	};	2817	};
2399		2818
2400	unshift @INC, $LIBDIR;	2819	unshift @INC, $LIBDIR;
2401		2820
		2821	my $bug_warning = 0;
		2822
		2823	our @WAIT_FOR_TICK;
		2824	our @WAIT_FOR_TICK_BEGIN;
		2825
		2826	sub wait_for_tick {
		2827	return unless $TICK_WATCHER->is_active;
		2828	return if $Coro::current == $Coro::main;
		2829
		2830	my $signal = new Coro::Signal;
		2831	push @WAIT_FOR_TICK, $signal;
		2832	$signal->wait;
		2833	}
		2834
		2835	sub wait_for_tick_begin {
		2836	return unless $TICK_WATCHER->is_active;
		2837	return if $Coro::current == $Coro::main;
		2838
		2839	my $signal = new Coro::Signal;
		2840	push @WAIT_FOR_TICK_BEGIN, $signal;
		2841	$signal->wait;
		2842	}
		2843
		2844	my $min = 1e6;#d#
		2845	my $avg = 10;
2402	$TICK_WATCHER = Event->timer (	2846	$TICK_WATCHER = Event->timer (
2403	reentrant => 0,	2847	reentrant => 0,
		2848	parked => 1,
2404	prio => 0,	2849	prio => 0,
2405	at => $NEXT_TICK || $TICK,	2850	at => $NEXT_TICK || $TICK,
2406	data => WF_AUTOCANCEL,	2851	data => WF_AUTOCANCEL,
2407	cb => sub {	2852	cb => sub {
		2853	if ($Coro::current != $Coro::main) {
		2854	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2855	unless ++$bug_warning > 10;
		2856	return;
		2857	}
		2858
		2859	$NOW = $tick_start = Event::time;
		2860
2408	cf::server_tick; # one server iteration	2861	cf::server_tick; # one server iteration
		2862
		2863	0 && sync_job {#d#
		2864	for(1..10) {
		2865	my $t = Event::time;
		2866	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2867	or die;
		2868
		2869	$map->width (50);
		2870	$map->height (50);
		2871	$map->alloc;
		2872	$map->_load_objects ("/tmp/x.map", 1);
		2873	my $t = Event::time - $t;
		2874
		2875	#next unless $t < 0.0013;#d#
		2876	if ($t < $min) {
		2877	$min = $t;
		2878	}
		2879	$avg = $avg * 0.99 + $t * 0.01;
		2880	}
		2881	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2882	exit 0;
		2883	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2884	};
		2885
2409	$RUNTIME += $TICK;	2886	$RUNTIME += $TICK;
2410	$NEXT_TICK += $TICK;	2887	$NEXT_TICK += $TICK;
2411		2888
2412	$WAIT_FOR_TICK->broadcast;	2889	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2413	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2890	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2891	Coro::async_pool {
		2892	write_runtime
		2893	or warn "ERROR: unable to write runtime file: $!";
		2894	};
		2895	}
		2896
		2897	# my $AFTER = Event::time;
		2898	# warn $AFTER - $NOW;#d#
		2899
		2900	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2901	$sig->send;
		2902	}
		2903	while (my $sig = shift @WAIT_FOR_TICK) {
		2904	$sig->send;
		2905	}
		2906
		2907	$NOW = Event::time;
2414		2908
2415	# if we are delayed by four ticks or more, skip them all	2909	# if we are delayed by four ticks or more, skip them all
2416	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2910	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2417		2911
2418	$TICK_WATCHER->at ($NEXT_TICK);	2912	$TICK_WATCHER->at ($NEXT_TICK);
2419	$TICK_WATCHER->start;	2913	$TICK_WATCHER->start;
		2914
		2915	$LOAD = ($NOW - $tick_start) / $TICK;
		2916	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2917
		2918	_post_tick;
		2919
		2920
2420	},	2921	},
2421	);	2922	);
2422		2923
		2924	{
2423	IO::AIO::max_poll_time $TICK * 0.2;	2925	BDB::max_poll_time $TICK * 0.1;
2424		2926	$BDB_POLL_WATCHER = Event->io (
2425	Event->io (	2927	reentrant => 0,
2426	fd => IO::AIO::poll_fileno,	2928	fd => BDB::poll_fileno,
2427	poll => 'r',	2929	poll => 'r',
2428	prio => 5,	2930	prio => 0,
2429	data => WF_AUTOCANCEL,
2430	cb => \&IO::AIO::poll_cb,
2431	);
2432
2433	Event->timer (
2434	data => WF_AUTOCANCEL,	2931	data => WF_AUTOCANCEL,
2435	after => 0,	2932	cb => \&BDB::poll_cb,
2436	interval => 10,	2933	);
2437	cb => sub {	2934	BDB::min_parallel 8;
2438	(Coro::unblock_sub {	2935
2439	write_runtime	2936	BDB::set_sync_prepare {
2440	or warn "ERROR: unable to write runtime file: $!";	2937	my $status;
		2938	my $current = $Coro::current;
		2939	(
		2940	sub {
		2941	$status = $!;
		2942	$current->ready; undef $current;
		2943	},
		2944	sub {
		2945	Coro::schedule while defined $current;
		2946	$! = $status;
		2947	},
		2948	)
		2949	};
		2950
		2951	unless ($DB_ENV) {
		2952	$DB_ENV = BDB::db_env_create;
		2953
		2954	cf::sync_job {
		2955	eval {
		2956	BDB::db_env_open
		2957	$DB_ENV,
		2958	$BDBDIR,
		2959	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2960	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2961	0666;
		2962
		2963	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2964
		2965	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2966	$DB_ENV->set_lk_detect;
		2967	};
		2968
		2969	cf::cleanup "db_env_open(db): $@" if $@;
2441	})->();	2970	};
2442	},	2971	}
2443	);	2972	}
		2973
		2974	{
		2975	IO::AIO::min_parallel 8;
		2976
		2977	undef $Coro::AIO::WATCHER;
		2978	IO::AIO::max_poll_time $TICK * 0.1;
		2979	$AIO_POLL_WATCHER = Event->io (
		2980	reentrant => 0,
		2981	data => WF_AUTOCANCEL,
		2982	fd => IO::AIO::poll_fileno,
		2983	poll => 'r',
		2984	prio => 6,
		2985	cb => \&IO::AIO::poll_cb,
		2986	);
		2987	}
		2988
		2989	my $_log_backtrace;
		2990
		2991	sub _log_backtrace {
		2992	my ($msg, @addr) = @_;
		2993
		2994	$msg =~ s/\n//;
		2995
		2996	# limit the # of concurrent backtraces
		2997	if ($_log_backtrace < 2) {
		2998	++$_log_backtrace;
		2999	async {
		3000	my @bt = fork_call {
		3001	@addr = map { sprintf "%x", $_ } @addr;
		3002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3004	or die "addr2line: $!";
		3005
		3006	my @funcs;
		3007	my @res = <$fh>;
		3008	chomp for @res;
		3009	while (@res) {
		3010	my ($func, $line) = splice @res, 0, 2, ();
		3011	push @funcs, "[$func] $line";
		3012	}
		3013
		3014	@funcs
		3015	};
		3016
		3017	LOG llevInfo, "[ABT] $msg\n";
		3018	LOG llevInfo, "[ABT] $_\n" for @bt;
		3019	--$_log_backtrace;
		3020	};
		3021	} else {
		3022	LOG llevInfo, "[ABT] $msg\n";
		3023	LOG llevInfo, "[ABT] [suppressed]\n";
		3024	}
		3025	}
		3026
		3027	# load additional modules
		3028	use cf::pod;
2444		3029
2445	END { cf::emergency_save }	3030	END { cf::emergency_save }
2446		3031
2447	1	3032	1
2448		3033

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