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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.150 by root, Mon Jan 8 19:25:53 2007 UTC vs.
Revision 1.271 by root, Fri Jun 1 06:04:08 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 ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
22	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
23	use YAML::Syck ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
52	our %PLAYER; # all users	88	our %PLAYER; # all users
53	our %MAP; # all maps	89	our %MAP; # all maps
54	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	91
56	our %EXT_CORO; # coroutines bound to extensions	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
77		115
78	#############################################################################	116	#############################################################################
79		117
80	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
81		119
…		…
88	=item $cf::RUNTIME	126	=item $cf::RUNTIME
89		127
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	129	every server tick.
92		130
93	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		134
95	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
97		139
98	=item $cf::NOW	140	=item $cf::NOW
99		141
100	The time of the last (current) server tick.	142	The time of the last (current) server tick.
101		143
102	=item $cf::TICK	144	=item $cf::TICK
103		145
104	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
105		157
106	=item %cf::CFG	158	=item %cf::CFG
107		159
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
110		168
111	=back	169	=back
112		170
113	=cut	171	=cut
114		172
115	BEGIN {	173	BEGIN {
116	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	175	my $msg = join "", @_;
118	utf8::encode $msg;
119		176
120	$msg .= "\n"	177	$msg .= "\n"
121	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
122		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
123	LOG llevError, $msg;	183	LOG llevError, $msg;
124	};	184	};
125	}	185	}
126		186
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
146		206
147	$Event::DIED = sub {	207	$Event::DIED = sub {
148	warn "error in event callback: @_";	208	warn "error in event callback: @_";
149	};	209	};
150		210
151	my %ext_pkg;
152	my @exts;
153	my @hook;
154
155	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
156		212
157	=over 4	213	=over 4
158		214
159	=cut	215	=item dumpval $ref
160		216
		217	=cut
		218
		219	sub dumpval {
		220	eval {
		221	local $SIG{__DIE__};
		222	my $d;
		223	if (1) {
		224	$d = new Data::Dumper([$_[0]], ["*var"]);
		225	$d->Terse(1);
		226	$d->Indent(2);
		227	$d->Quotekeys(0);
		228	$d->Useqq(1);
		229	#$d->Bless(...);
		230	$d->Seen($_[1]) if @_ > 1;
		231	$d = $d->Dump();
		232	}
		233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		234	$d
		235	} || "[unable to dump $_[0]: '$@']";
		236	}
		237
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
162		239
163	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
164		241
165	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
166		243
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
175		245
176	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
177
178	=cut
179
180	sub to_json($) {
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		247
185	=item cf::lock_wait $string	248	=item cf::lock_wait $string
186		249
187	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
188		251
…		…
194	returned.	257	returned.
195		258
196	Lock names should begin with a unique identifier (for example, cf::map::find	259	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
198		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
199	=cut	266	=cut
200		267
201	our %LOCK;	268	our %LOCK;
202		269
203	sub lock_wait($) {	270	sub lock_wait($) {
…		…
222	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
224	}	291	}
225	}	292	}
226		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
227	sub freeze_mainloop {	300	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
229		302
230	my $guard = Coro::guard { $TICK_WATCHER->start };	303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
231	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
232	$guard	307	$guard
233	}	308	}
234		309
235	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
…		…
257		332
258	sub sync_job(&) {	333	sub sync_job(&) {
259	my ($job) = @_;	334	my ($job) = @_;
260		335
261	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
262	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
264		341
265	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
266	# (but this is cancel-safe)	343	# (but this is cancel-safe)
…		…
277		354
278	while ($busy) {	355	while ($busy) {
279	Coro::cede or Event::one_event;	356	Coro::cede or Event::one_event;
280	}	357	}
281		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
		365
282	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
283	} else {	367	} else {
284	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
285		369
286	$job->()	370	$job->()
287	}	371	}
288	}	372	}
289		373
290	=item $coro = cf::async_ext { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
291		375
292	Like async, but this coro is automcatially being canceled when the	376	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	377	extension calling this is being unloaded.
294		378
295	=cut	379	=cut
296		380
297	sub async_ext(&) {	381	sub async_ext(&) {
…		…
306		390
307	$coro	391	$coro
308	}	392	}
309		393
310	sub write_runtime {	394	sub write_runtime {
311	my $runtime = cf::localdir . "/runtime";	395	my $runtime = "$LOCALDIR/runtime";
		396
		397	# first touch the runtime file to show we are still running:
		398	# the fsync below can take a very very long time.
		399
		400	IO::AIO::aio_utime $runtime, undef, undef;
		401
		402	my $guard = cf::lock_acquire "write_runtime";
312		403
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	404	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
314	or return;	405	or return;
315		406
		407	my $value = $cf::RUNTIME + 90 + 10;
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	408	# 10 is the runtime save interval, for a monotonic clock
		409	# 60 allows for the watchdog to kill the server.
		410
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0	411	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;	412	and return;
319		413
		414	# always fsync - this file is important
320	aio_fsync $fh	415	aio_fsync $fh
321	and return;	416	and return;
322		417
		418	# touch it again to show we are up-to-date
		419	aio_utime $fh, undef, undef;
		420
323	close $fh	421	close $fh
324	or return;	422	or return;
325		423
326	aio_rename "$runtime~", $runtime	424	aio_rename "$runtime~", $runtime
327	and return;	425	and return;
328		426
		427	warn "runtime file written.\n";#d#
		428
329	1	429	1
330	}	430	}
331		431
		432	=item cf::datalog type => key => value, ...
		433
		434	Log a datalog packet of the given type with the given key-value pairs.
		435
		436	=cut
		437
		438	sub datalog($@) {
		439	my ($type, %kv) = @_;
		440	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		441	}
		442
332	=back	443	=back
333		444
334	=cut	445	=cut
335
336	#############################################################################
337
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455		446
456	#############################################################################	447	#############################################################################
457		448
458	=head2 ATTACHABLE OBJECTS	449	=head2 ATTACHABLE OBJECTS
459		450
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	576	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	577	our @CB_MAP = ();
587		578
588	my %attachment;	579	my %attachment;
589		580
		581	sub cf::attachable::thawer_merge {
		582	# simply override everything except _meta
		583	local $_[0]{_meta};
		584	%{$_[0]} = %{$_[1]};
		585	}
		586
590	sub _attach_cb($$$$) {	587	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	588	my ($registry, $event, $prio, $cb) = @_;
592		589
593	use sort 'stable';	590	use sort 'stable';
594		591
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	625	$registry = $CB_TYPE[$object_type] ||= [];
629		626
630	} elsif ($type eq "subtype") {	627	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	628	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	629	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	630	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		631
635	} elsif ($type eq "package") {	632	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	633	my $pkg = shift @arg;
637		634
638	while (my ($name, $id) = each %cb_id) {	635	while (my ($name, $id) = each %cb_id) {
…		…
679	if (ref $_[0]) {	676	if (ref $_[0]) {
680	_object_attach @_;	677	_object_attach @_;
681	} else {	678	} else {
682	_attach shift->_attach_registry, @_;	679	_attach shift->_attach_registry, @_;
683	}	680	}
		681	_recalc_want;
684	};	682	};
685		683
686	# all those should be optimised	684	# all those should be optimised
687	sub cf::attachable::detach {	685	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	686	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	689	delete $obj->{_attachment}{$name};
692	reattach ($obj);	690	reattach ($obj);
693	} else {	691	} else {
694	Carp::croak "cannot, currently, detach class attachments";	692	Carp::croak "cannot, currently, detach class attachments";
695	}	693	}
		694	_recalc_want;
696	};	695	};
697		696
698	sub cf::attachable::attached {	697	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	698	my ($obj, $name) = @_;
700		699
…		…
765	# object support	764	# object support
766		765
767	sub reattach {	766	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	767	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	768	my ($obj) = @_;
		769
		770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		771
771	my $registry = $obj->registry;	772	my $registry = $obj->registry;
772		773
773	@$registry = ();	774	@$registry = ();
774		775
…		…
821	$filename, length $$rdata, scalar @$objs;	822	$filename, length $$rdata, scalar @$objs;
822		823
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	825	chmod SAVE_MODE, $fh;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	827	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	828	close $fh;
828		829
829	if (@$objs) {	830	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	831	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	832	chmod SAVE_MODE, $fh;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	833	my $data = Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	834	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	835	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	836	close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	837	aio_rename "$filename.pst~", "$filename.pst";
837	}	838	}
838	} else {	839	} else {
839	aio_unlink "$filename.pst";	840	aio_unlink "$filename.pst";
…		…
906	=cut	907	=cut
907		908
908	sub register_extcmd {	909	sub register_extcmd {
909	my ($name, $cb) = @_;	910	my ($name, $cb) = @_;
910		911
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	912	$EXTCMD{$name} = $cb;
915	}	913	}
916		914
917	cf::player->attach (	915	cf::player->attach (
918	on_command => sub {	916	on_command => sub {
919	my ($pl, $name, $params) = @_;	917	my ($pl, $name, $params) = @_;
…		…
932		930
933	my $msg = eval { from_json $buf };	931	my $msg = eval { from_json $buf };
934		932
935	if (ref $msg) {	933	if (ref $msg) {
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	935	if (my %reply = $cb->($pl, $msg)) {
938	$pl->ext_reply ($msg->{msgid}, %reply);	936	$pl->ext_reply ($msg->{msgid}, %reply);
939	}	937	}
940	}	938	}
941	} else {	939	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
944		942
945	cf::override;	943	cf::override;
946	},	944	},
947	);	945	);
948		946
949	sub register {
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {	947	sub load_extension {
956	my ($path) = @_;	948	my ($path) = @_;
957		949
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
959	my $base = $1;	951	my $base = $1;
960	my $pkg = $1;	952	my $pkg = $1;
961	$pkg =~ s/[^[:word:]]/_/g;	953	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";	954	$pkg = "ext::$pkg";
963		955
964	warn "loading '$path' into '$pkg'\n";	956	warn "... loading '$path' into '$pkg'\n";
965		957
966	open my $fh, "<:utf8", $path	958	open my $fh, "<:utf8", $path
967	or die "$path: $!";	959	or die "$path: $!";
968		960
969	my $source =	961	my $source =
970	"package $pkg; use strict; use utf8;\n"	962	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"	963	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })	964	. (do { local $/; <$fh> })
973	. "\n};\n1";	965	. "\n};\n1";
974		966
975	eval $source	967	unless (eval $source) {
976	or die $@ ? "$path: $@\n"	968	my $msg = $@ ? "$path: $@\n"
977	: "extension disabled.\n";	969	: "extension disabled.\n";
978		970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
979	push @exts, $pkg;	971	warn $@;
980	$ext_pkg{$base} = $pkg;	972	warn "mandatory extension failed to load, exiting.\n";
981		973	exit 1;
982	# no strict 'refs';	974	}
983	# @{"$pkg\::ISA"} = ext::;	975	die $@;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }	976	}
998		977
999	# remove commands	978	push @EXTS, $pkg;
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}
1008	}
1009
1010	# remove extcmds
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}	979	}
1024		980
1025	sub load_extensions {	981	sub load_extensions {
1026	for my $ext (<$LIBDIR/*.ext>) {	982	for my $ext (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	983	next unless -r $ext;
…		…
1031	} or warn "$ext not loaded: $@";	987	} or warn "$ext not loaded: $@";
1032	}	988	}
1033	}	989	}
1034		990
1035	#############################################################################	991	#############################################################################
1036	# load/save/clean perl data associated with a map
1037
1038	*cf::mapsupport::on_clean = sub {
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		992
1073	=head2 CORE EXTENSIONS	993	=head2 CORE EXTENSIONS
1074		994
1075	Functions and methods that extend core crossfire objects.	995	Functions and methods that extend core crossfire objects.
1076		996
1077	=cut	997	=cut
1078		998
1079	package cf::player;	999	package cf::player;
1080		1000
		1001	use Coro::AIO;
		1002
1081	=head3 cf::player	1003	=head3 cf::player
1082		1004
1083	=over 4	1005	=over 4
1084		1006
1085	=item cf::player::find $login	1007	=item cf::player::find $login
…		…
1087	Returns the given player object, loading it if necessary (might block).	1009	Returns the given player object, loading it if necessary (might block).
1088		1010
1089	=cut	1011	=cut
1090		1012
1091	sub playerdir($) {	1013	sub playerdir($) {
1092	cf::localdir	1014	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1015	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1016	}
1098		1017
1099	sub path($) {	1018	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1019	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1020
1102	(playerdir $login) . "/$login.pl"	1021	(playerdir $login) . "/playerdata"
1103	}	1022	}
1104		1023
1105	sub find_active($) {	1024	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1025	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1026	and $cf::PLAYER{$_[0]}->active
…		…
1110		1029
1111	sub exists($) {	1030	sub exists($) {
1112	my ($login) = @_;	1031	my ($login) = @_;
1113		1032
1114	$cf::PLAYER{$login}	1033	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1034	or cf::sync_job { !aio_stat path $login }
1116	}	1035	}
1117		1036
1118	sub find($) {	1037	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1038	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1039	my $login = $_[0];
1121		1040
1122	my $guard = cf::lock_acquire "user_find:$login";	1041	my $guard = cf::lock_acquire "user_find:$login";
1123		1042
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1043	$cf::PLAYER{$_[0]} || do {
		1044	# rename old playerfiles to new ones
		1045	#TODO: remove when no longer required
		1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1049	aio_unlink +(playerdir $login) . "/$login.pl";
		1050
		1051	my $pl = load_pl path $login
		1052	or return;
		1053	$cf::PLAYER{$login} = $pl
		1054	}
1125	};	1055	}
1126	}	1056	}
1127		1057
1128	sub save($) {	1058	sub save($) {
1129	my ($pl) = @_;	1059	my ($pl) = @_;
1130		1060
…		…
1133	my $path = path $pl;	1063	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1064	my $guard = cf::lock_acquire "user_save:$path";
1135		1065
1136	return if $pl->{deny_save};	1066	return if $pl->{deny_save};
1137		1067
1138	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1068	aio_mkdir playerdir $pl, 0770;
1139	$pl->{last_save} = $cf::RUNTIME;	1069	$pl->{last_save} = $cf::RUNTIME;
1140		1070
1141	$pl->save_pl ($path);	1071	$pl->save_pl ($path);
1142	Coro::cede;	1072	Coro::cede;
1143	}	1073	}
…		…
1153	$cf::PLAYER{$login} = $self;	1083	$cf::PLAYER{$login} = $self;
1154		1084
1155	$self	1085	$self
1156	}	1086	}
1157		1087
		1088	=item $pl->quit_character
		1089
		1090	Nukes the player without looking back. If logged in, the connection will
		1091	be destroyed. May block for a long time.
		1092
		1093	=cut
		1094
1158	sub quit_character {	1095	sub quit_character {
1159	my ($pl) = @_;	1096	my ($pl) = @_;
		1097
		1098	my $name = $pl->ob->name;
1160		1099
1161	$pl->{deny_save} = 1;	1100	$pl->{deny_save} = 1;
1162	$pl->password ("*"); # this should lock out the player until we nuked the dir	1101	$pl->password ("*"); # this should lock out the player until we nuked the dir
1163		1102
1164	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1166	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1105	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1167	$pl->ns->destroy if $pl->ns;	1106	$pl->ns->destroy if $pl->ns;
1168		1107
1169	my $path = playerdir $pl;	1108	my $path = playerdir $pl;
1170	my $temp = "$path~$cf::RUNTIME~deleting~";	1109	my $temp = "$path~$cf::RUNTIME~deleting~";
1171	Coro::AIO::aio_rename $path, $temp;	1110	aio_rename $path, $temp;
1172	delete $cf::PLAYER{$pl->ob->name};	1111	delete $cf::PLAYER{$pl->ob->name};
1173	$pl->destroy;	1112	$pl->destroy;
		1113
		1114	my $prefix = qr<^~\Q$name\E/>;
		1115
		1116	# nuke player maps
		1117	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1118
1174	IO::AIO::aio_rmtree $temp;	1119	IO::AIO::aio_rmtree $temp;
1175	}	1120	}
1176		1121
		1122	=item $pl->kick
		1123
		1124	Kicks a player out of the game. This destroys the connection.
		1125
		1126	=cut
		1127
		1128	sub kick {
		1129	my ($pl, $kicker) = @_;
		1130
		1131	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1132	$pl->killer ("kicked");
		1133	$pl->ns->destroy;
		1134	}
		1135
		1136	=item cf::player::list_logins
		1137
		1138	Returns am arrayref of all valid playernames in the system, can take a
		1139	while and may block, so not sync_job-capable, ever.
		1140
		1141	=cut
		1142
		1143	sub list_logins {
		1144	my $dirs = aio_readdir $PLAYERDIR
		1145	or return [];
		1146
		1147	my @logins;
		1148
		1149	for my $login (@$dirs) {
		1150	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1151	aio_read $fh, 0, 512, my $buf, 0 or next;
		1152	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1153
		1154	utf8::decode $login;
		1155	push @logins, $login;
		1156	}
		1157
		1158	\@logins
		1159	}
		1160
		1161	=item $player->maps
		1162
		1163	Returns an arrayref of map paths that are private for this
		1164	player. May block.
		1165
		1166	=cut
		1167
		1168	sub maps($) {
		1169	my ($pl) = @_;
		1170
		1171	$pl = ref $pl ? $pl->ob->name : $pl;
		1172
		1173	my $files = aio_readdir playerdir $pl
		1174	or return;
		1175
		1176	my @paths;
		1177
		1178	for (@$files) {
		1179	utf8::decode $_;
		1180	next if /\.(?:pl|pst)$/;
		1181	next unless /^$PATH_SEP/o;
		1182
		1183	push @paths, cf::map::normalise "~$pl/$_";
		1184	}
		1185
		1186	\@paths
		1187	}
		1188
1177	=item $player->ext_reply ($msgid, $msgtype, %msg)	1189	=item $player->ext_reply ($msgid, %msg)
1178		1190
1179	Sends an ext reply to the player.	1191	Sends an ext reply to the player.
1180		1192
1181	=cut	1193	=cut
1182		1194
1183	sub ext_reply($$$%) {	1195	sub ext_reply($$%) {
1184	my ($self, $id, %msg) = @_;	1196	my ($self, $id, %msg) = @_;
1185		1197
1186	$msg{msgid} = $id;	1198	$msg{msgid} = $id;
1187		1199
1188	$self->send ("ext " . cf::to_json \%msg);	1200	$self->send ("ext " . cf::to_json \%msg);
1189	}	1201	}
1190		1202
1191	package cf;	1203	=item $player->ext_event ($type, %msg)
		1204
		1205	Sends an ext event to the client.
		1206
		1207	=cut
		1208
		1209	sub ext_event($$%) {
		1210	my ($self, $type, %msg) = @_;
		1211
		1212	$self->ns->ext_event ($type, %msg);
		1213	}
		1214
		1215	=head3 cf::region
		1216
		1217	=over 4
		1218
		1219	=cut
		1220
		1221	package cf::region;
		1222
		1223	=item cf::region::find_by_path $path
		1224
		1225	Tries to decuce the probable region for a map knowing only its path.
		1226
		1227	=cut
		1228
		1229	sub find_by_path($) {
		1230	my ($path) = @_;
		1231
		1232	my ($match, $specificity);
		1233
		1234	for my $region (list) {
		1235	if ($region->match && $path =~ $region->match) {
		1236	($match, $specificity) = ($region, $region->specificity)
		1237	if $region->specificity > $specificity;
		1238	}
		1239	}
		1240
		1241	$match
		1242	}
1192		1243
1193	=back	1244	=back
1194
1195		1245
1196	=head3 cf::map	1246	=head3 cf::map
1197		1247
1198	=over 4	1248	=over 4
1199		1249
…		…
1202	package cf::map;	1252	package cf::map;
1203		1253
1204	use Fcntl;	1254	use Fcntl;
1205	use Coro::AIO;	1255	use Coro::AIO;
1206		1256
		1257	use overload
		1258	'""' => \&as_string,
		1259	fallback => 1;
		1260
1207	our $MAX_RESET = 3600;	1261	our $MAX_RESET = 3600;
1208	our $DEFAULT_RESET = 3000;	1262	our $DEFAULT_RESET = 3000;
1209		1263
1210	sub generate_random_map {	1264	sub generate_random_map {
1211	my ($path, $rmp) = @_;	1265	my ($self, $rmp) = @_;
1212
1213	# mit "rum" bekleckern, nicht	1266	# mit "rum" bekleckern, nicht
1214	cf::map::_create_random_map	1267	$self->_create_random_map (
1215	$path,
1216	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1217	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1218	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1219	$rmp->{exit_on_final_map},	1271	$rmp->{exit_on_final_map},
1220	$rmp->{xsize}, $rmp->{ysize},	1272	$rmp->{xsize}, $rmp->{ysize},
1221	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1273	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1222	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1274	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1223	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1275	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1224	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1276	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1225	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1277	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1226	(cf::region::find $rmp->{region})	1278	(cf::region::find $rmp->{region}), $rmp->{custom}
		1279	)
		1280	}
		1281
		1282	=item cf::map->register ($regex, $prio)
		1283
		1284	Register a handler for the map path matching the given regex at the
		1285	givne priority (higher is better, built-in handlers have priority 0, the
		1286	default).
		1287
		1288	=cut
		1289
		1290	sub register {
		1291	my (undef, $regex, $prio) = @_;
		1292	my $pkg = caller;
		1293
		1294	no strict;
		1295	push @{"$pkg\::ISA"}, __PACKAGE__;
		1296
		1297	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1298	}
		1299
		1300	# also paths starting with '/'
		1301	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1302
		1303	sub thawer_merge {
		1304	my ($self, $merge) = @_;
		1305
		1306	# we have to keep some variables in memory intact
		1307	local $self->{path};
		1308	local $self->{load_path};
		1309	local $self->{deny_save};
		1310	local $self->{deny_reset};
		1311
		1312	$self->SUPER::thawer_merge ($merge);
		1313	}
		1314
		1315	sub normalise {
		1316	my ($path, $base) = @_;
		1317
		1318	$path = "$path"; # make sure its a string
		1319
		1320	$path =~ s/\.map$//;
		1321
		1322	# map plan:
		1323	#
		1324	# /! non-realised random map exit (special hack!)
		1325	# {... are special paths that are not being touched
		1326	# ?xxx/... are special absolute paths
		1327	# ?random/... random maps
		1328	# /... normal maps
		1329	# ~user/... per-player map of a specific user
		1330
		1331	$path =~ s/$PATH_SEP/\//go;
		1332
		1333	# treat it as relative path if it starts with
		1334	# something that looks reasonable
		1335	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1336	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1337
		1338	$base =~ s{[^/]+/?$}{};
		1339	$path = "$base/$path";
		1340	}
		1341
		1342	for ($path) {
		1343	redo if s{//}{/};
		1344	redo if s{/\.?/}{/};
		1345	redo if s{/[^/]+/\.\./}{/};
		1346	}
		1347
		1348	$path
		1349	}
		1350
		1351	sub new_from_path {
		1352	my (undef, $path, $base) = @_;
		1353
		1354	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1355
		1356	$path = normalise $path, $base;
		1357
		1358	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1359	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1360	my $self = bless cf::map::new, $pkg;
		1361	$self->{path} = $path; $self->path ($path);
		1362	$self->init; # pass $1 etc.
		1363	return $self;
		1364	}
		1365	}
		1366
		1367	Carp::carp "unable to resolve path '$path' (base '$base').";
		1368	()
		1369	}
		1370
		1371	sub init {
		1372	my ($self) = @_;
		1373
		1374	$self
		1375	}
		1376
		1377	sub as_string {
		1378	my ($self) = @_;
		1379
		1380	"$self->{path}"
		1381	}
		1382
		1383	# the displayed name, this is a one way mapping
		1384	sub visible_name {
		1385	&as_string
		1386	}
		1387
		1388	# the original (read-only) location
		1389	sub load_path {
		1390	my ($self) = @_;
		1391
		1392	"$MAPDIR/$self->{path}.map"
		1393	}
		1394
		1395	# the temporary/swap location
		1396	sub save_path {
		1397	my ($self) = @_;
		1398
		1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1400	"$TMPDIR/$path.map"
		1401	}
		1402
		1403	# the unique path, undef == no special unique path
		1404	sub uniq_path {
		1405	my ($self) = @_;
		1406
		1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1408	"$UNIQUEDIR/$path"
1227	}	1409	}
1228		1410
1229	# and all this just because we cannot iterate over	1411	# and all this just because we cannot iterate over
1230	# all maps in C++...	1412	# all maps in C++...
1231	sub change_all_map_light {	1413	sub change_all_map_light {
…		…
1233		1415
1234	$_->change_map_light ($change)	1416	$_->change_map_light ($change)
1235	for grep $_->outdoor, values %cf::MAP;	1417	for grep $_->outdoor, values %cf::MAP;
1236	}	1418	}
1237		1419
		1420	sub unlink_save {
		1421	my ($self) = @_;
		1422
		1423	utf8::encode (my $save = $self->save_path);
		1424	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1426	}
		1427
1238	sub try_load_header($) {	1428	sub load_header_from($) {
1239	my ($path) = @_;	1429	my ($self, $path) = @_;
1240		1430
1241	utf8::encode $path;	1431	utf8::encode $path;
1242	aio_open $path, O_RDONLY, 0	1432	#aio_open $path, O_RDONLY, 0
		1433	# or return;
		1434
		1435	$self->_load_header ($path)
1243	or return;	1436	or return;
1244		1437
1245	my $map = cf::map::new	1438	$self->{load_path} = $path;
		1439
		1440	1
		1441	}
		1442
		1443	sub load_header_orig {
		1444	my ($self) = @_;
		1445
		1446	$self->load_header_from ($self->load_path)
		1447	}
		1448
		1449	sub load_header_temp {
		1450	my ($self) = @_;
		1451
		1452	$self->load_header_from ($self->save_path)
		1453	}
		1454
		1455	sub prepare_temp {
		1456	my ($self) = @_;
		1457
		1458	$self->last_access ((delete $self->{last_access})
		1459	|| $cf::RUNTIME); #d#
		1460	# safety
		1461	$self->{instantiate_time} = $cf::RUNTIME
		1462	if $self->{instantiate_time} > $cf::RUNTIME;
		1463	}
		1464
		1465	sub prepare_orig {
		1466	my ($self) = @_;
		1467
		1468	$self->{load_original} = 1;
		1469	$self->{instantiate_time} = $cf::RUNTIME;
		1470	$self->last_access ($cf::RUNTIME);
		1471	$self->instantiate;
		1472	}
		1473
		1474	sub load_header {
		1475	my ($self) = @_;
		1476
		1477	if ($self->load_header_temp) {
		1478	$self->prepare_temp;
		1479	} else {
		1480	$self->load_header_orig
1246	or return;	1481	or return;
		1482	$self->prepare_orig;
		1483	}
1247		1484
1248	# for better error messages only, will be overwritten	1485	$self->default_region (cf::region::find_by_path $self->{path})
1249	$map->path ($path);	1486	unless $self->default_region;
1250		1487
1251	$map->load_header ($path)	1488	1
1252	or return;
1253
1254	$map->{load_path} = $path;
1255
1256	$map
1257	}	1489	}
1258		1490
1259	sub find;	1491	sub find;
1260	sub find {	1492	sub find {
1261	my ($path, $origin) = @_;	1493	my ($path, $origin) = @_;
1262		1494
1263	#warn "find<$path,$origin>\n";#d#
1264
1265	$path = new cf::path $path, $origin && $origin->path;	1495	$path = normalise $path, $origin && $origin->path;
1266	my $key = $path->as_string;
1267		1496
1268	cf::lock_wait "map_find:$key";	1497	cf::lock_wait "map_find:$path";
1269		1498
1270	$cf::MAP{$key} || do {	1499	$cf::MAP{$path} || do {
1271	my $guard = cf::lock_acquire "map_find:$key";	1500	my $guard = cf::lock_acquire "map_find:$path";
1272		1501	my $map = new_from_path cf::map $path
1273	# do it the slow way
1274	my $map = try_load_header $path->save_path;
1275
1276	Coro::cede;
1277
1278	if ($map) {
1279	$map->last_access ((delete $map->{last_access})
1280	|| $cf::RUNTIME); #d#
1281	# safety
1282	$map->{instantiate_time} = $cf::RUNTIME
1283	if $map->{instantiate_time} > $cf::RUNTIME;
1284	} else {
1285	if (my $rmp = $path->random_map_params) {
1286	$map = generate_random_map $key, $rmp;
1287	} else {
1288	$map = try_load_header $path->load_path;
1289	}
1290
1291	$map or return;	1502	or return;
1292		1503
1293	$map->{load_original} = 1;
1294	$map->{instantiate_time} = $cf::RUNTIME;
1295	$map->last_access ($cf::RUNTIME);
1296	$map->instantiate;
1297
1298	# per-player maps become, after loading, normal maps
1299	$map->per_player (0) if $path->{user_rel};
1300	}
1301
1302	$map->path ($key);
1303	$map->{path} = $path;
1304	$map->{last_save} = $cf::RUNTIME;	1504	$map->{last_save} = $cf::RUNTIME;
1305		1505
1306	Coro::cede;	1506	$map->load_header
		1507	or return;
1307		1508
1308	if ($map->should_reset) {	1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1510	# doing this can freeze the server in a sync job, obviously
		1511	#$cf::WAIT_FOR_TICK->wait;
1309	$map->reset;	1512	$map->reset;
1310	undef $guard;	1513	undef $guard;
1311	$map = find $path	1514	return find $path;
1312	or return;
1313	}	1515	}
1314		1516
1315	$cf::MAP{$key} = $map	1517	$cf::MAP{$path} = $map
1316	}	1518	}
1317	}	1519	}
		1520
		1521	sub pre_load { }
		1522	sub post_load { }
1318		1523
1319	sub load {	1524	sub load {
1320	my ($self) = @_;	1525	my ($self) = @_;
1321		1526
		1527	local $self->{deny_reset} = 1; # loading can take a long time
		1528
1322	my $path = $self->{path};	1529	my $path = $self->{path};
		1530
		1531	{
1323	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1532	my $guard = cf::lock_acquire "map_load:$path";
1324		1533
1325	return if $self->in_memory != cf::MAP_SWAPPED;	1534	return if $self->in_memory != cf::MAP_SWAPPED;
1326		1535
1327	$self->in_memory (cf::MAP_LOADING);	1536	$self->in_memory (cf::MAP_LOADING);
1328		1537
1329	$self->alloc;	1538	$self->alloc;
		1539
		1540	$self->pre_load;
		1541	Coro::cede;
		1542
1330	$self->load_objects ($self->{load_path}, 1)	1543	$self->_load_objects ($self->{load_path}, 1)
1331	or return;	1544	or return;
1332		1545
1333	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1334	if delete $self->{load_original};	1547	if delete $self->{load_original};
1335		1548
1336	if (my $uniq = $path->uniq_path) {	1549	if (my $uniq = $self->uniq_path) {
1337	utf8::encode $uniq;	1550	utf8::encode $uniq;
1338	if (aio_open $uniq, O_RDONLY, 0) {	1551	if (aio_open $uniq, O_RDONLY, 0) {
1339	$self->clear_unique_items;	1552	$self->clear_unique_items;
1340	$self->load_objects ($uniq, 0);	1553	$self->_load_objects ($uniq, 0);
1341	}	1554	}
1342	}	1555	}
1343		1556
1344	Coro::cede;	1557	Coro::cede;
1345
1346	# now do the right thing for maps	1558	# now do the right thing for maps
1347	$self->link_multipart_objects;	1559	$self->link_multipart_objects;
1348
1349	if ($self->{path}->is_style_map) {
1350	$self->{deny_save} = 1;
1351	$self->{deny_reset} = 1;
1352	} else {
1353	$self->fix_auto_apply;
1354	$self->decay_objects;
1355	$self->update_buttons;
1356	$self->set_darkness_map;
1357	$self->difficulty ($self->estimate_difficulty)	1560	$self->difficulty ($self->estimate_difficulty)
1358	unless $self->difficulty;	1561	unless $self->difficulty;
		1562	Coro::cede;
		1563
		1564	unless ($self->{deny_activate}) {
		1565	$self->decay_objects;
		1566	$self->fix_auto_apply;
		1567	$self->update_buttons;
		1568	Coro::cede;
		1569	$self->set_darkness_map;
		1570	Coro::cede;
1359	$self->activate;	1571	$self->activate;
1360	}	1572	}
1361		1573
1362	Coro::cede;
1363
1364	$self->in_memory (cf::MAP_IN_MEMORY);	1574	$self->in_memory (cf::MAP_IN_MEMORY);
		1575	}
		1576
		1577	$self->post_load;
		1578	}
		1579
		1580	sub customise_for {
		1581	my ($self, $ob) = @_;
		1582
		1583	return find "~" . $ob->name . "/" . $self->{path}
		1584	if $self->per_player;
		1585
		1586	$self
		1587	}
		1588
		1589	# find and load all maps in the 3x3 area around a map
		1590	sub load_diag {
		1591	my ($map) = @_;
		1592
		1593	my @diag; # diagonal neighbours
		1594
		1595	for (0 .. 3) {
		1596	my $neigh = $map->tile_path ($_)
		1597	or next;
		1598	$neigh = find $neigh, $map
		1599	or next;
		1600	$neigh->load;
		1601
		1602	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1603	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1604	}
		1605
		1606	for (@diag) {
		1607	my $neigh = find @$_
		1608	or next;
		1609	$neigh->load;
		1610	}
1365	}	1611	}
1366		1612
1367	sub find_sync {	1613	sub find_sync {
1368	my ($path, $origin) = @_;	1614	my ($path, $origin) = @_;
1369		1615
1370	cf::sync_job { cf::map::find $path, $origin }	1616	cf::sync_job { find $path, $origin }
1371	}	1617	}
1372		1618
1373	sub do_load_sync {	1619	sub do_load_sync {
1374	my ($map) = @_;	1620	my ($map) = @_;
1375		1621
1376	cf::sync_job { $map->load };	1622	cf::sync_job { $map->load };
1377	}	1623	}
1378		1624
		1625	our %MAP_PREFETCH;
		1626	our $MAP_PREFETCHER = undef;
		1627
		1628	sub find_async {
		1629	my ($path, $origin) = @_;
		1630
		1631	$path = normalise $path, $origin && $origin->{path};
		1632
		1633	if (my $map = $cf::MAP{$path}) {
		1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1635	}
		1636
		1637	undef $MAP_PREFETCH{$path};
		1638	$MAP_PREFETCHER ||= cf::async {
		1639	while (%MAP_PREFETCH) {
		1640	for my $path (keys %MAP_PREFETCH) {
		1641	my $map = find $path
		1642	or next;
		1643	$map->load;
		1644
		1645	delete $MAP_PREFETCH{$path};
		1646	}
		1647	}
		1648	undef $MAP_PREFETCHER;
		1649	};
		1650	$MAP_PREFETCHER->prio (6);
		1651
		1652	()
		1653	}
		1654
1379	sub save {	1655	sub save {
1380	my ($self) = @_;	1656	my ($self) = @_;
1381		1657
1382	my $lock = cf::lock_acquire "map_data:" . $self->path;	1658	my $lock = cf::lock_acquire "map_data:" . $self->path;
1383		1659
1384	$self->{last_save} = $cf::RUNTIME;	1660	$self->{last_save} = $cf::RUNTIME;
1385		1661
1386	return unless $self->dirty;	1662	return unless $self->dirty;
1387		1663
1388	my $save = $self->{path}->save_path; utf8::encode $save;	1664	my $save = $self->save_path; utf8::encode $save;
1389	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1665	my $uniq = $self->uniq_path; utf8::encode $uniq;
1390		1666
1391	$self->{load_path} = $save;	1667	$self->{load_path} = $save;
1392		1668
1393	return if $self->{deny_save};	1669	return if $self->{deny_save};
1394		1670
…		…
1397	cf::async {	1673	cf::async {
1398	$_->contr->save for $self->players;	1674	$_->contr->save for $self->players;
1399	};	1675	};
1400		1676
1401	if ($uniq) {	1677	if ($uniq) {
1402	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1403	$self->save_objects ($uniq, cf::IO_UNIQUES);	1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1404	} else {	1680	} else {
1405	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1681	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1406	}	1682	}
1407	}	1683	}
1408		1684
1409	sub swap_out {	1685	sub swap_out {
1410	my ($self) = @_;	1686	my ($self) = @_;
…		…
1424		1700
1425	sub reset_at {	1701	sub reset_at {
1426	my ($self) = @_;	1702	my ($self) = @_;
1427		1703
1428	# TODO: safety, remove and allow resettable per-player maps	1704	# TODO: safety, remove and allow resettable per-player maps
1429	return 1e99 if $self->{path}{user_rel};	1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1430	return 1e99 if $self->{deny_reset};	1706	return 1e99 if $self->{deny_reset};
1431		1707
1432	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1433	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1434		1710
…		…
1439	my ($self) = @_;	1715	my ($self) = @_;
1440		1716
1441	$self->reset_at <= $cf::RUNTIME	1717	$self->reset_at <= $cf::RUNTIME
1442	}	1718	}
1443		1719
1444	sub unlink_save {
1445	my ($self) = @_;
1446
1447	utf8::encode (my $save = $self->{path}->save_path);
1448	aioreq_pri 3; IO::AIO::aio_unlink $save;
1449	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1450	}
1451
1452	sub rename {
1453	my ($self, $new_path) = @_;
1454
1455	$self->unlink_save;
1456
1457	delete $cf::MAP{$self->path};
1458	$self->{path} = new cf::path $new_path;
1459	$self->path ($self->{path}->as_string);
1460	$cf::MAP{$self->path} = $self;
1461
1462	$self->save;
1463	}
1464
1465	sub reset {	1720	sub reset {
1466	my ($self) = @_;	1721	my ($self) = @_;
1467		1722
1468	my $lock = cf::lock_acquire "map_data:" . $self->path;	1723	my $lock = cf::lock_acquire "map_data:$self->{path}";
1469		1724
1470	return if $self->players;	1725	return if $self->players;
1471	return if $self->{path}{user_rel};#d#	1726	return if $self->isa ("ext::map_per_player");#d#
1472		1727
1473	warn "resetting map ", $self->path;#d#	1728	warn "resetting map ", $self->path;#d#
1474		1729
		1730	$self->in_memory (cf::MAP_SWAPPED);
		1731
		1732	# need to save uniques path
		1733	unless ($self->{deny_save}) {
		1734	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1735
		1736	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1737	if $uniq;
		1738	}
		1739
1475	delete $cf::MAP{$self->path};	1740	delete $cf::MAP{$self->path};
		1741
		1742	$self->clear;
1476		1743
1477	$_->clear_links_to ($self) for values %cf::MAP;	1744	$_->clear_links_to ($self) for values %cf::MAP;
1478		1745
1479	$self->unlink_save;	1746	$self->unlink_save;
1480	$self->destroy;	1747	$self->destroy;
…		…
1483	my $nuke_counter = "aaaa";	1750	my $nuke_counter = "aaaa";
1484		1751
1485	sub nuke {	1752	sub nuke {
1486	my ($self) = @_;	1753	my ($self) = @_;
1487		1754
		1755	delete $cf::MAP{$self->path};
		1756
		1757	$self->unlink_save;
		1758
		1759	bless $self, "cf::map";
		1760	delete $self->{deny_reset};
1488	$self->{deny_save} = 1;	1761	$self->{deny_save} = 1;
1489	$self->reset_timeout (1);	1762	$self->reset_timeout (1);
1490	$self->rename ("{nuke}/" . ($nuke_counter++));	1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1764
		1765	$cf::MAP{$self->path} = $self;
		1766
1491	$self->reset; # polite request, might not happen	1767	$self->reset; # polite request, might not happen
1492	}	1768	}
1493		1769
1494	sub customise_for {	1770	=item cf::map::unique_maps
1495	my ($map, $ob) = @_;
1496		1771
1497	if ($map->per_player) {	1772	Returns an arrayref of paths of all shared maps that have
1498	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1773	instantiated unique items. May block.
1499	}
1500		1774
1501	$map	1775	=cut
1502	}
1503		1776
1504	sub emergency_save {	1777	sub unique_maps() {
1505	my $freeze_guard = cf::freeze_mainloop;	1778	my $files = aio_readdir $UNIQUEDIR
		1779	or return;
1506		1780
1507	warn "enter emergency perl save\n";	1781	my @paths;
1508		1782
1509	cf::sync_job {	1783	for (@$files) {
1510	warn "begin emergency player save\n";	1784	utf8::decode $_;
1511	$_->save for values %cf::PLAYER;	1785	next if /\.pst$/;
1512	warn "end emergency player save\n";	1786	next unless /^$PATH_SEP/o;
1513		1787
1514	warn "begin emergency map save\n";	1788	push @paths, cf::map::normalise $_;
1515	$_->save for values %cf::MAP;
1516	warn "end emergency map save\n";
1517	};	1789	}
1518		1790
1519	warn "leave emergency perl save\n";	1791	\@paths
1520	}	1792	}
1521		1793
1522	package cf;	1794	package cf;
1523		1795
1524	=back	1796	=back
1525		1797
		1798	=head3 cf::object
		1799
		1800	=cut
		1801
		1802	package cf::object;
		1803
		1804	=over 4
		1805
		1806	=item $ob->inv_recursive
		1807
		1808	Returns the inventory of the object _and_ their inventories, recursively.
		1809
		1810	=cut
		1811
		1812	sub inv_recursive_;
		1813	sub inv_recursive_ {
		1814	map { $_, inv_recursive_ $_->inv } @_
		1815	}
		1816
		1817	sub inv_recursive {
		1818	inv_recursive_ inv $_[0]
		1819	}
		1820
		1821	package cf;
		1822
		1823	=back
1526		1824
1527	=head3 cf::object::player	1825	=head3 cf::object::player
1528		1826
1529	=over 4	1827	=over 4
1530		1828
…		…
1570		1868
1571	=item $player_object->enter_link	1869	=item $player_object->enter_link
1572		1870
1573	Freezes the player and moves him/her to a special map (C<{link}>).	1871	Freezes the player and moves him/her to a special map (C<{link}>).
1574		1872
1575	The player should be reaosnably safe there for short amounts of time. You	1873	The player should be reasonably safe there for short amounts of time. You
1576	I<MUST> call C<leave_link> as soon as possible, though.	1874	I<MUST> call C<leave_link> as soon as possible, though.
1577		1875
		1876	Will never block.
		1877
1578	=item $player_object->leave_link ($map, $x, $y)	1878	=item $player_object->leave_link ($map, $x, $y)
1579		1879
1580	Moves the player out of the specila link map onto the given map. If the	1880	Moves the player out of the special C<{link}> map onto the specified
1581	map is not valid (or omitted), the player will be moved back to the	1881	map. If the map is not valid (or omitted), the player will be moved back
1582	location he/she was before the call to C<enter_link>, or, if that fails,	1882	to the location he/she was before the call to C<enter_link>, or, if that
1583	to the emergency map position.	1883	fails, to the emergency map position.
1584		1884
1585	Might block.	1885	Might block.
1586		1886
1587	=cut	1887	=cut
		1888
		1889	sub link_map {
		1890	unless ($LINK_MAP) {
		1891	$LINK_MAP = cf::map::find "{link}"
		1892	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1893	$LINK_MAP->load;
		1894	}
		1895
		1896	$LINK_MAP
		1897	}
1588		1898
1589	sub cf::object::player::enter_link {	1899	sub cf::object::player::enter_link {
1590	my ($self) = @_;	1900	my ($self) = @_;
1591		1901
1592	$self->deactivate_recursive;	1902	$self->deactivate_recursive;
1593		1903
1594	return if $self->map == $LINK_MAP;	1904	return if UNIVERSAL::isa $self->map, "ext::map_link";
1595		1905
1596	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1597	if $self->map;	1907	if $self->map && $self->map->{path} ne "{link}";
1598		1908
1599	$self->enter_map ($LINK_MAP, 20, 20);	1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1600	}	1910	}
1601		1911
1602	sub cf::object::player::leave_link {	1912	sub cf::object::player::leave_link {
1603	my ($self, $map, $x, $y) = @_;	1913	my ($self, $map, $x, $y) = @_;
		1914
		1915	return unless $self->contr->active;
1604		1916
1605	my $link_pos = delete $self->{_link_pos};	1917	my $link_pos = delete $self->{_link_pos};
1606		1918
1607	unless ($map) {	1919	unless ($map) {
1608	# restore original map position	1920	# restore original map position
…		…
1622	# use -1 or undef as default coordinates, not 0, 0	1934	# use -1 or undef as default coordinates, not 0, 0
1623	($x, $y) = ($map->enter_x, $map->enter_y)	1935	($x, $y) = ($map->enter_x, $map->enter_y)
1624	if $x <=0 && $y <= 0;	1936	if $x <=0 && $y <= 0;
1625		1937
1626	$map->load;	1938	$map->load;
		1939	$map->load_diag;
1627		1940
1628	return unless $self->contr->active;	1941	return unless $self->contr->active;
1629	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1630	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1631	}	1946	}
1632		1947
1633	cf::player->attach (
1634	on_logout => sub {
1635	my ($pl) = @_;
1636
1637	# abort map switching before logout
1638	if ($pl->ob->{_link_pos}) {
1639	cf::sync_job {
1640	$pl->ob->leave_link
1641	};
1642	}
1643	},
1644	on_login => sub {
1645	my ($pl) = @_;
1646
1647	# try to abort aborted map switching on player login :)
1648	# should happen only on crashes
1649	if ($pl->ob->{_link_pos}) {
1650	$pl->ob->enter_link;
1651	(async {
1652	# we need this sleep as the login has a concurrent enter_exit running
1653	# and this sleep increases chances of the player not ending up in scorn
1654	$pl->ob->reply (undef,
1655	"There was an internal problem at your last logout, "
1656	. "the server will try to bring you to your intended destination in a second.",
1657	cf::NDI_RED);
1658	Coro::Timer::sleep 1;
1659	$pl->ob->leave_link;
1660	})->prio (2);
1661	}
1662	},
1663	);
1664
1665	=item $player_object->goto ($path, $x, $y)	1948	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1666		1949
		1950	Moves the player to the given map-path and coordinates by first freezing
		1951	her, loading and preparing them map, calling the provided $check callback
		1952	that has to return the map if sucecssful, and then unfreezes the player on
		1953	the new (success) or old (failed) map position.
		1954
1667	=cut	1955	=cut
		1956
		1957	our $GOTOGEN;
1668		1958
1669	sub cf::object::player::goto {	1959	sub cf::object::player::goto {
1670	my ($self, $path, $x, $y) = @_;	1960	my ($self, $path, $x, $y, $check) = @_;
		1961
		1962	# do generation counting so two concurrent goto's will be executed in-order
		1963	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1671		1964
1672	$self->enter_link;	1965	$self->enter_link;
1673		1966
1674	(async {	1967	(async {
1675	$path = new cf::path $path;	1968	my $map = eval {
1676
1677	my $map = cf::map::find $path->as_string;	1969	my $map = cf::map::find $path;
		1970
		1971	if ($map) {
1678	$map = $map->customise_for ($self) if $map;	1972	$map = $map->customise_for ($self);
1679		1973	$map = $check->($map) if $check && $map;
1680	# warn "entering ", $map->path, " at ($x, $y)\n"	1974	} else {
1681	# if $map;
1682
1683	$map or $map->cluck ("oy");#d#
1684	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1975	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1976	}
1685		1977
		1978	$map
		1979	};
		1980
		1981	if ($@) {
		1982	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1983	LOG llevError | logBacktrace, Carp::longmess $@;
		1984	}
		1985
		1986	if ($gen == $self->{_goto_generation}) {
		1987	delete $self->{_goto_generation};
1686	$self->leave_link ($map, $x, $y);	1988	$self->leave_link ($map, $x, $y);
		1989	}
1687	})->prio (1);	1990	})->prio (1);
1688	}	1991	}
1689		1992
1690	=item $player_object->enter_exit ($exit_object)	1993	=item $player_object->enter_exit ($exit_object)
1691		1994
…		…
1693		1996
1694	sub parse_random_map_params {	1997	sub parse_random_map_params {
1695	my ($spec) = @_;	1998	my ($spec) = @_;
1696		1999
1697	my $rmp = { # defaults	2000	my $rmp = { # defaults
1698	xsize => 10,	2001	xsize => (cf::rndm 15, 40),
1699	ysize => 10,	2002	ysize => (cf::rndm 15, 40),
		2003	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2004	#layout => string,
1700	};	2005	};
1701		2006
1702	for (split /\n/, $spec) {	2007	for (split /\n/, $spec) {
1703	my ($k, $v) = split /\s+/, $_, 2;	2008	my ($k, $v) = split /\s+/, $_, 2;
1704		2009
…		…
1708	$rmp	2013	$rmp
1709	}	2014	}
1710		2015
1711	sub prepare_random_map {	2016	sub prepare_random_map {
1712	my ($exit) = @_;	2017	my ($exit) = @_;
		2018
		2019	my $guard = cf::lock_acquire "exit_prepare:$exit";
1713		2020
1714	# all this does is basically replace the /! path by	2021	# all this does is basically replace the /! path by
1715	# a new random map path (?random/...) with a seed	2022	# a new random map path (?random/...) with a seed
1716	# that depends on the exit object	2023	# that depends on the exit object
1717		2024
1718	my $rmp = parse_random_map_params $exit->msg;	2025	my $rmp = parse_random_map_params $exit->msg;
1719		2026
1720	if ($exit->map) {	2027	if ($exit->map) {
1721	$rmp->{region} = $exit->map->region_name;	2028	$rmp->{region} = $exit->region->name;
1722	$rmp->{origin_map} = $exit->map->path;	2029	$rmp->{origin_map} = $exit->map->path;
1723	$rmp->{origin_x} = $exit->x;	2030	$rmp->{origin_x} = $exit->x;
1724	$rmp->{origin_y} = $exit->y;	2031	$rmp->{origin_y} = $exit->y;
1725	}	2032	}
1726		2033
1727	$rmp->{random_seed} ||= $exit->random_seed;	2034	$rmp->{random_seed} ||= $exit->random_seed;
1728		2035
1729	my $data = cf::to_json $rmp;	2036	my $data = cf::to_json $rmp;
1730	my $md5 = Digest::MD5::md5_hex $data;	2037	my $md5 = Digest::MD5::md5_hex $data;
		2038	my $meta = "$RANDOMDIR/$md5.meta";
1731		2039
1732	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2040	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1733	aio_write $fh, 0, (length $data), $data, 0;	2041	aio_write $fh, 0, (length $data), $data, 0;
		2042	undef $fh;
		2043	aio_rename "$meta~", $meta;
1734		2044
1735	$exit->slaying ("?random/$md5");	2045	$exit->slaying ("?random/$md5");
1736	$exit->msg (undef);	2046	$exit->msg (undef);
1737	}	2047	}
1738	}	2048	}
1739		2049
1740	sub cf::object::player::enter_exit {	2050	sub cf::object::player::enter_exit {
1741	my ($self, $exit) = @_;	2051	my ($self, $exit) = @_;
1742		2052
1743	return unless $self->type == cf::PLAYER;	2053	return unless $self->type == cf::PLAYER;
		2054
		2055	if ($exit->slaying eq "/!") {
		2056	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2057	# the problem is that $exit might not survive long enough
		2058	# so it needs to be done right now, right here
		2059	cf::sync_job { prepare_random_map $exit };
		2060	}
		2061
		2062	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2063	my $hp = $exit->stats->hp;
		2064	my $sp = $exit->stats->sp;
1744		2065
1745	$self->enter_link;	2066	$self->enter_link;
1746		2067
1747	(async {	2068	(async {
1748	$self->deactivate_recursive; # just to be sure	2069	$self->deactivate_recursive; # just to be sure
1749	unless (eval {	2070	unless (eval {
1750	prepare_random_map $exit	2071	$self->goto ($slaying, $hp, $sp);
1751	if $exit->slaying eq "/!";
1752
1753	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1754	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1755		2072
1756	1;	2073	1;
1757	}) {	2074	}) {
1758	$self->message ("Something went wrong deep within the crossfire server. "	2075	$self->message ("Something went wrong deep within the crossfire server. "
1759	. "I'll try to bring you back to the map you were before. "	2076	. "I'll try to bring you back to the map you were before. "
1760	. "Please report this to the dungeon master",	2077	. "Please report this to the dungeon master!",
1761	cf::NDI_UNIQUE | cf::NDI_RED);	2078	cf::NDI_UNIQUE | cf::NDI_RED);
1762		2079
1763	warn "ERROR in enter_exit: $@";	2080	warn "ERROR in enter_exit: $@";
1764	$self->leave_link;	2081	$self->leave_link;
1765	}	2082	}
1766	})->prio (1);	2083	})->prio (1);
…		…
1779		2096
1780	sub cf::client::send_drawinfo {	2097	sub cf::client::send_drawinfo {
1781	my ($self, $text, $flags) = @_;	2098	my ($self, $text, $flags) = @_;
1782		2099
1783	utf8::encode $text;	2100	utf8::encode $text;
1784	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2101	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1785	}	2102	}
1786		2103
		2104	=item $client->ext_event ($type, %msg)
		2105
		2106	Sends an exti event to the client.
		2107
		2108	=cut
		2109
		2110	sub cf::client::ext_event($$%) {
		2111	my ($self, $type, %msg) = @_;
		2112
		2113	$msg{msgtype} = "event_$type";
		2114	$self->send_packet ("ext " . cf::to_json \%msg);
		2115	}
1787		2116
1788	=item $success = $client->query ($flags, "text", \&cb)	2117	=item $success = $client->query ($flags, "text", \&cb)
1789		2118
1790	Queues a query to the client, calling the given callback with	2119	Queues a query to the client, calling the given callback with
1791	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2120	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1820	# get handled first	2149	# get handled first
1821	my $queue = delete $ns->{query_queue}	2150	my $queue = delete $ns->{query_queue}
1822	or return; # be conservative, not sure how that can happen, but we saw a crash here	2151	or return; # be conservative, not sure how that can happen, but we saw a crash here
1823		2152
1824	(shift @$queue)->[1]->($msg);	2153	(shift @$queue)->[1]->($msg);
		2154	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1825		2155
1826	push @{ $ns->{query_queue} }, @$queue;	2156	push @{ $ns->{query_queue} }, @$queue;
1827		2157
1828	if (@{ $ns->{query_queue} } == @$queue) {	2158	if (@{ $ns->{query_queue} } == @$queue) {
1829	if (@$queue) {	2159	if (@$queue) {
…		…
1887		2217
1888	# here we export the classes and methods available to script code	2218	# here we export the classes and methods available to script code
1889		2219
1890	=pod	2220	=pod
1891		2221
1892	The following fucntions and emthods are available within a safe environment:	2222	The following functions and methods are available within a safe environment:
1893		2223
1894	cf::object contr pay_amount pay_player map	2224	cf::object contr pay_amount pay_player map
1895	cf::object::player player	2225	cf::object::player player
1896	cf::player peaceful	2226	cf::player peaceful
1897	cf::map trigger	2227	cf::map trigger
…		…
1982	#############################################################################	2312	#############################################################################
1983		2313
1984	=head2 EXTENSION DATABASE SUPPORT	2314	=head2 EXTENSION DATABASE SUPPORT
1985		2315
1986	Crossfire maintains a very simple database for extension use. It can	2316	Crossfire maintains a very simple database for extension use. It can
1987	currently store anything that can be serialised using Storable, which	2317	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1988	excludes objects.	2318	convert to/from binary).
1989		2319
1990	The parameter C<$family> should best start with the name of the extension	2320	The parameter C<$family> should best start with the name of the extension
1991	using it, it should be unique.	2321	using it, it should be unique.
1992		2322
1993	=over 4	2323	=over 4
1994		2324
1995	=item $hashref = cf::db_get $family
1996
1997	Return a hashref for use by the extension C<$family>, which can be
1998	modified. After modifications, you have to call C<cf::db_dirty> or
1999	C<cf::db_sync>.
2000
2001	=item $value = cf::db_get $family => $key	2325	=item $value = cf::db_get $family => $key
2002		2326
2003	Returns a single value from the database	2327	Returns a single value from the database.
2004
2005	=item cf::db_put $family => $hashref
2006
2007	Stores the given family hashref into the database. Updates are delayed, if
2008	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2009		2328
2010	=item cf::db_put $family => $key => $value	2329	=item cf::db_put $family => $key => $value
2011		2330
2012	Stores the given C<$value> in the family hash. Updates are delayed, if you	2331	Stores the given C<$value> in the family.
2013	want the data to be synced to disk immediately, use C<cf::db_sync>.
2014
2015	=item cf::db_dirty
2016
2017	Marks the database as dirty, to be updated at a later time.
2018
2019	=item cf::db_sync
2020
2021	Immediately write the database to disk I<if it is dirty>.
2022		2332
2023	=cut	2333	=cut
2024		2334
2025	our $DB;	2335	our $DB;
2026		2336
2027	{	2337	sub db_init {
2028	my $path = cf::localdir . "/database.pst";	2338	unless ($DB) {
		2339	$DB = BDB::db_create $DB_ENV;
2029		2340
2030	sub db_load() {	2341	cf::sync_job {
2031	$DB = stat $path ? Storable::retrieve $path : { };	2342	eval {
2032	}	2343	$DB->set_flags (BDB::CHKSUM);
2033		2344
2034	my $pid;	2345	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2035		2346	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2036	sub db_save() {	2347	cf::cleanup "db_open(db): $!" if $!;
2037	waitpid $pid, 0 if $pid;	2348	};
2038	if (0 == ($pid = fork)) {	2349	cf::cleanup "db_open(db): $@" if $@;
2039	$DB->{_meta}{version} = 1;
2040	Storable::nstore $DB, "$path~";
2041	rename "$path~", $path;
2042	cf::_exit 0 if defined $pid;
2043	}	2350	};
2044	}
2045
2046	my $dirty;
2047
2048	sub db_sync() {
2049	db_save if $dirty;
2050	undef $dirty;
2051	}
2052
2053	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2054	db_sync;
2055	});	2351	}
		2352	}
2056		2353
2057	sub db_dirty() {
2058	$dirty = 1;
2059	$idle->start;
2060	}
2061
2062	sub db_get($;$) {	2354	sub db_get($$) {
2063	@_ >= 2	2355	my $key = "$_[0]/$_[1]";
2064	? $DB->{$_[0]}{$_[1]}
2065	: ($DB->{$_[0]} ||= { })
2066	}
2067		2356
		2357	cf::sync_job {
		2358	BDB::db_get $DB, undef, $key, my $data;
		2359
		2360	$! ? ()
		2361	: $data
		2362	}
		2363	}
		2364
2068	sub db_put($$;$) {	2365	sub db_put($$$) {
2069	if (@_ >= 3) {	2366	BDB::dbreq_pri 4;
2070	$DB->{$_[0]}{$_[1]} = $_[2];	2367	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2071	} else {	2368	}
2072	$DB->{$_[0]} = $_[1];
2073	}
2074	db_dirty;
2075	}
2076		2369
2077	cf::global->attach (	2370	=item cf::cache $id => [$paths...], $processversion => $process
2078	prio => 10000,	2371
2079	on_cleanup => sub {	2372	Generic caching function that returns the value of the resource $id,
2080	db_sync;	2373	caching and regenerating as required.
		2374
		2375	This function can block.
		2376
		2377	=cut
		2378
		2379	sub cache {
		2380	my ($id, $src, $processversion, $process) = @_;
		2381
		2382	my $meta =
		2383	join "\x00",
		2384	$processversion,
		2385	map {
		2386	aio_stat $_
		2387	and Carp::croak "$_: $!";
		2388
		2389	($_, (stat _)[7,9])
		2390	} @$src;
		2391
		2392	my $dbmeta = db_get cache => "$id/meta";
		2393	if ($dbmeta ne $meta) {
		2394	# changed, we may need to process
		2395
		2396	my @data;
		2397	my $md5;
		2398
		2399	for (0 .. $#$src) {
		2400	0 <= aio_load $src->[$_], $data[$_]
		2401	or Carp::croak "$src->[$_]: $!";
2081	},	2402	}
2082	);	2403
		2404	# if processing is expensive, check
		2405	# checksum first
		2406	if (1) {
		2407	$md5 =
		2408	join "\x00",
		2409	$processversion,
		2410	map {
		2411	Coro::cede;
		2412	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2413	} 0.. $#$src;
		2414
		2415
		2416	my $dbmd5 = db_get cache => "$id/md5";
		2417	if ($dbmd5 eq $md5) {
		2418	db_put cache => "$id/meta", $meta;
		2419
		2420	return db_get cache => "$id/data";
		2421	}
		2422	}
		2423
		2424	my $t1 = Time::HiRes::time;
		2425	my $data = $process->(\@data);
		2426	my $t2 = Time::HiRes::time;
		2427
		2428	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2429
		2430	db_put cache => "$id/data", $data;
		2431	db_put cache => "$id/md5" , $md5;
		2432	db_put cache => "$id/meta", $meta;
		2433
		2434	return $data;
		2435	}
		2436
		2437	db_get cache => "$id/data"
		2438	}
		2439
		2440	=item fork_call { }, $args
		2441
		2442	Executes the given code block with the given arguments in a seperate
		2443	process, returning the results. Everything must be serialisable with
		2444	Coro::Storable. May, of course, block. Note that the executed sub may
		2445	never block itself or use any form of Event handling.
		2446
		2447	=cut
		2448
		2449	sub fork_call(&@) {
		2450	my ($cb, @args) = @_;
		2451
		2452	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2453	# or die "socketpair: $!";
		2454	pipe my $fh1, my $fh2
		2455	or die "pipe: $!";
		2456
		2457	if (my $pid = fork) {
		2458	close $fh2;
		2459
		2460	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2461	$res = Coro::Storable::thaw $res;
		2462
		2463	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2464
		2465	die $$res unless "ARRAY" eq ref $res;
		2466
		2467	return wantarray ? @$res : $res->[-1];
		2468	} else {
		2469	reset_signals;
		2470	local $SIG{__WARN__};
		2471	local $SIG{__DIE__};
		2472	eval {
		2473	close $fh1;
		2474
		2475	my @res = eval { $cb->(@args) };
		2476	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2477	};
		2478
		2479	warn $@ if $@;
		2480	_exit 0;
		2481	}
2083	}	2482	}
2084		2483
2085	#############################################################################	2484	#############################################################################
2086	# the server's main()	2485	# the server's init and main functions
		2486
		2487	sub load_facedata($) {
		2488	my ($path) = @_;
		2489
		2490	warn "loading facedata from $path\n";
		2491
		2492	my $facedata;
		2493	0 < aio_load $path, $facedata
		2494	or die "$path: $!";
		2495
		2496	$facedata = Coro::Storable::thaw $facedata;
		2497
		2498	$facedata->{version} == 2
		2499	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2500
		2501	{
		2502	my $faces = $facedata->{faceinfo};
		2503
		2504	while (my ($face, $info) = each %$faces) {
		2505	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2506	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2507	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2508	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2509	Coro::cede;
		2510	}
		2511
		2512	while (my ($face, $info) = each %$faces) {
		2513	next unless $info->{smooth};
		2514	my $idx = cf::face::find $face
		2515	or next;
		2516	if (my $smooth = cf::face::find $info->{smooth}) {
		2517	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2518	} else {
		2519	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2520	}
		2521	Coro::cede;
		2522	}
		2523	}
		2524
		2525	{
		2526	my $anims = $facedata->{animinfo};
		2527
		2528	while (my ($anim, $info) = each %$anims) {
		2529	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2530	Coro::cede;
		2531	}
		2532
		2533	cf::anim::invalidate_all; # d'oh
		2534	}
		2535
		2536	1
		2537	}
		2538
		2539	sub reload_regions {
		2540	load_resource_file "$MAPDIR/regions"
		2541	or die "unable to load regions file\n";
		2542	}
		2543
		2544	sub reload_facedata {
		2545	load_facedata "$DATADIR/facedata"
		2546	or die "unable to load facedata\n";
		2547	}
		2548
		2549	sub reload_archetypes {
		2550	load_resource_file "$DATADIR/archetypes"
		2551	or die "unable to load archetypes\n";
		2552	}
		2553
		2554	sub reload_treasures {
		2555	load_resource_file "$DATADIR/treasures"
		2556	or die "unable to load treasurelists\n";
		2557	}
		2558
		2559	sub reload_resources {
		2560	warn "reloading resource files...\n";
		2561
		2562	reload_regions;
		2563	reload_facedata;
		2564	reload_archetypes;
		2565	reload_treasures;
		2566
		2567	warn "finished reloading resource files\n";
		2568	}
		2569
		2570	sub init {
		2571	reload_resources;
		2572	}
2087		2573
2088	sub cfg_load {	2574	sub cfg_load {
2089	open my $fh, "<:utf8", cf::confdir . "/config"	2575	open my $fh, "<:utf8", "$CONFDIR/config"
2090	or return;	2576	or return;
2091		2577
2092	local $/;	2578	local $/;
2093	*CFG = YAML::Syck::Load <$fh>;	2579	*CFG = YAML::Syck::Load <$fh>;
2094		2580
…		…
2108		2594
2109	sub main {	2595	sub main {
2110	# we must not ever block the main coroutine	2596	# we must not ever block the main coroutine
2111	local $Coro::idle = sub {	2597	local $Coro::idle = sub {
2112	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2598	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2599	(async {
2113	async { Event::one_event };	2600	Event::one_event;
		2601	})->prio (Coro::PRIO_MAX);
2114	};	2602	};
2115		2603
2116	cfg_load;	2604	cfg_load;
2117	db_load;	2605	db_init;
2118	load_extensions;	2606	load_extensions;
		2607
		2608	$TICK_WATCHER->start;
2119	Event::loop;	2609	Event::loop;
2120	}	2610	}
2121		2611
2122	#############################################################################	2612	#############################################################################
2123	# initialisation	2613	# initialisation and cleanup
2124		2614
		2615	# install some emergency cleanup handlers
		2616	BEGIN {
		2617	for my $signal (qw(INT HUP TERM)) {
		2618	Event->signal (
		2619	reentrant => 0,
		2620	data => WF_AUTOCANCEL,
		2621	signal => $signal,
		2622	prio => 0,
		2623	cb => sub {
		2624	cf::cleanup "SIG$signal";
		2625	},
		2626	);
		2627	}
		2628	}
		2629
		2630	sub emergency_save() {
		2631	my $freeze_guard = cf::freeze_mainloop;
		2632
		2633	warn "enter emergency perl save\n";
		2634
		2635	cf::sync_job {
		2636	# use a peculiar iteration method to avoid tripping on perl
		2637	# refcount bugs in for. also avoids problems with players
		2638	# and maps saved/destroyed asynchronously.
		2639	warn "begin emergency player save\n";
		2640	for my $login (keys %cf::PLAYER) {
		2641	my $pl = $cf::PLAYER{$login} or next;
		2642	$pl->valid or next;
		2643	$pl->save;
		2644	}
		2645	warn "end emergency player save\n";
		2646
		2647	warn "begin emergency map save\n";
		2648	for my $path (keys %cf::MAP) {
		2649	my $map = $cf::MAP{$path} or next;
		2650	$map->valid or next;
		2651	$map->save;
		2652	}
		2653	warn "end emergency map save\n";
		2654
		2655	warn "begin emergency database checkpoint\n";
		2656	BDB::db_env_txn_checkpoint $DB_ENV;
		2657	warn "end emergency database checkpoint\n";
		2658	};
		2659
		2660	warn "leave emergency perl save\n";
		2661	}
		2662
		2663	sub post_cleanup {
		2664	my ($make_core) = @_;
		2665
		2666	warn Carp::longmess "post_cleanup backtrace"
		2667	if $make_core;
		2668	}
		2669
2125	sub reload() {	2670	sub do_reload_perl() {
2126	# can/must only be called in main	2671	# can/must only be called in main
2127	if ($Coro::current != $Coro::main) {	2672	if ($Coro::current != $Coro::main) {
2128	warn "can only reload from main coroutine\n";	2673	warn "can only reload from main coroutine";
2129	return;	2674	return;
2130	}	2675	}
2131		2676
2132	warn "reloading...";	2677	warn "reloading...";
2133		2678
2134	my $guard = freeze_mainloop;	2679	warn "entering sync_job";
		2680
		2681	cf::sync_job {
		2682	cf::write_runtime; # external watchdog should not bark
2135	cf::emergency_save;	2683	cf::emergency_save;
		2684	cf::write_runtime; # external watchdog should not bark
2136		2685
2137	eval {	2686	warn "syncing database to disk";
		2687	BDB::db_env_txn_checkpoint $DB_ENV;
		2688
2138	# if anything goes wrong in here, we should simply crash as we already saved	2689	# if anything goes wrong in here, we should simply crash as we already saved
2139		2690
2140	# cancel all watchers	2691	warn "cancelling all WF_AUTOCANCEL watchers";
2141	for (Event::all_watchers) {	2692	for (Event::all_watchers) {
2142	$_->cancel if $_->data & WF_AUTOCANCEL;	2693	$_->cancel if $_->data & WF_AUTOCANCEL;
2143	}	2694	}
2144		2695
		2696	warn "flushing outstanding aio requests";
		2697	for (;;) {
		2698	BDB::flush;
		2699	IO::AIO::flush;
		2700	Coro::cede;
		2701	last unless IO::AIO::nreqs || BDB::nreqs;
		2702	warn "iterate...";
		2703	}
		2704
		2705	++$RELOAD;
		2706
2145	# cancel all extension coros	2707	warn "cancelling all extension coros";
2146	$_->cancel for values %EXT_CORO;	2708	$_->cancel for values %EXT_CORO;
2147	%EXT_CORO = ();	2709	%EXT_CORO = ();
2148		2710
2149	# unload all extensions	2711	warn "removing commands";
2150	for (@exts) {	2712	%COMMAND = ();
		2713
		2714	warn "removing ext commands";
		2715	%EXTCMD = ();
		2716
		2717	warn "unloading/nuking all extensions";
		2718	for my $pkg (@EXTS) {
2151	warn "unloading <$_>";	2719	warn "... unloading $pkg";
2152	unload_extension $_;	2720
		2721	if (my $cb = $pkg->can ("unload")) {
		2722	eval {
		2723	$cb->($pkg);
		2724	1
		2725	} or warn "$pkg unloaded, but with errors: $@";
2153	}	2726	}
2154		2727
		2728	warn "... nuking $pkg";
		2729	Symbol::delete_package $pkg;
		2730	}
		2731
2155	# unload all modules loaded from $LIBDIR	2732	warn "unloading all perl modules loaded from $LIBDIR";
2156	while (my ($k, $v) = each %INC) {	2733	while (my ($k, $v) = each %INC) {
2157	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2734	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2158		2735
2159	warn "removing <$k>";	2736	warn "... unloading $k";
2160	delete $INC{$k};	2737	delete $INC{$k};
2161		2738
2162	$k =~ s/\.pm$//;	2739	$k =~ s/\.pm$//;
2163	$k =~ s/\//::/g;	2740	$k =~ s/\//::/g;
2164		2741
…		…
2167	}	2744	}
2168		2745
2169	Symbol::delete_package $k;	2746	Symbol::delete_package $k;
2170	}	2747	}
2171		2748
2172	# sync database to disk
2173	cf::db_sync;
2174	IO::AIO::flush;
2175
2176	# get rid of safe::, as good as possible	2749	warn "getting rid of safe::, as good as possible";
2177	Symbol::delete_package "safe::$_"	2750	Symbol::delete_package "safe::$_"
2178	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2751	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2179		2752
2180	# remove register_script_function callbacks
2181	# TODO
2182
2183	# unload cf.pm "a bit"	2753	warn "unloading cf.pm \"a bit\"";
2184	delete $INC{"cf.pm"};	2754	delete $INC{"cf.pm"};
		2755	delete $INC{"cf/pod.pm"};
2185		2756
2186	# don't, removes xs symbols, too,	2757	# don't, removes xs symbols, too,
2187	# and global variables created in xs	2758	# and global variables created in xs
2188	#Symbol::delete_package __PACKAGE__;	2759	#Symbol::delete_package __PACKAGE__;
2189		2760
2190	# reload cf.pm	2761	warn "unload completed, starting to reload now";
		2762
2191	warn "reloading cf.pm";	2763	warn "reloading cf.pm";
2192	require cf;	2764	require cf;
2193	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2765	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2194		2766
2195	# load config and database again	2767	warn "loading config and database again";
2196	cf::cfg_load;	2768	cf::cfg_load;
2197	cf::db_load;
2198		2769
2199	# load extensions
2200	warn "load extensions";	2770	warn "loading extensions";
2201	cf::load_extensions;	2771	cf::load_extensions;
2202		2772
2203	# reattach attachments to objects	2773	warn "reattaching attachments to objects/players";
2204	warn "reattach";	2774	_global_reattach; # objects, sockets
2205	_global_reattach;	2775	warn "reattaching attachments to maps";
2206	reattach $_ for values %MAP;	2776	reattach $_ for values %MAP;
2207	};	2777	warn "reattaching attachments to players";
		2778	reattach $_ for values %PLAYER;
2208		2779
2209	if ($@) {	2780	warn "leaving sync_job";
		2781
		2782	1
		2783	} or do {
2210	warn $@;	2784	warn $@;
2211	warn "error while reloading, exiting.";	2785	warn "error while reloading, exiting.";
2212	exit 1;	2786	exit 1;
2213	}	2787	};
2214		2788
2215	warn "reloaded successfully";	2789	warn "reloaded";
2216	};	2790	};
2217		2791
2218	#############################################################################	2792	our $RELOAD_WATCHER; # used only during reload
2219		2793
2220	unless ($LINK_MAP) {	2794	sub reload_perl() {
2221	$LINK_MAP = cf::map::new;	2795	# doing reload synchronously and two reloads happen back-to-back,
		2796	# coro crashes during coro_state_free->destroy here.
2222		2797
2223	$LINK_MAP->width (41);	2798	$RELOAD_WATCHER ||= Event->timer (
2224	$LINK_MAP->height (41);	2799	reentrant => 0,
2225	$LINK_MAP->alloc;
2226	$LINK_MAP->path ("{link}");
2227	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2228	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2229
2230	# dirty hack because... archetypes are not yet loaded
2231	Event->timer (
2232	after => 10,	2800	after => 0,
		2801	data => WF_AUTOCANCEL,
2233	cb => sub {	2802	cb => sub {
2234	$_[0]->w->cancel;	2803	do_reload_perl;
2235		2804	undef $RELOAD_WATCHER;
2236	# provide some exits "home"
2237	my $exit = cf::object::new "exit";
2238
2239	$exit->slaying ($EMERGENCY_POSITION->[0]);
2240	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2241	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2242
2243	$LINK_MAP->insert ($exit->clone, 19, 19);
2244	$LINK_MAP->insert ($exit->clone, 19, 20);
2245	$LINK_MAP->insert ($exit->clone, 19, 21);
2246	$LINK_MAP->insert ($exit->clone, 20, 19);
2247	$LINK_MAP->insert ($exit->clone, 20, 21);
2248	$LINK_MAP->insert ($exit->clone, 21, 19);
2249	$LINK_MAP->insert ($exit->clone, 21, 20);
2250	$LINK_MAP->insert ($exit->clone, 21, 21);
2251
2252	$exit->destroy;
2253	});	2805	},
2254		2806	);
2255	$LINK_MAP->{deny_save} = 1;
2256	$LINK_MAP->{deny_reset} = 1;
2257
2258	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2259	}	2807	}
2260
2261	register "<global>", __PACKAGE__;
2262		2808
2263	register_command "reload" => sub {	2809	register_command "reload" => sub {
2264	my ($who, $arg) = @_;	2810	my ($who, $arg) = @_;
2265		2811
2266	if ($who->flag (FLAG_WIZ)) {	2812	if ($who->flag (FLAG_WIZ)) {
2267	$who->message ("start of reload.");
2268	reload;
2269	$who->message ("end of reload.");	2813	$who->message ("reloading server.");
		2814	async { reload_perl };
2270	}	2815	}
2271	};	2816	};
2272		2817
2273	unshift @INC, $LIBDIR;	2818	unshift @INC, $LIBDIR;
2274		2819
		2820	my $bug_warning = 0;
		2821
		2822	our @WAIT_FOR_TICK;
		2823	our @WAIT_FOR_TICK_BEGIN;
		2824
		2825	sub wait_for_tick {
		2826	return unless $TICK_WATCHER->is_active;
		2827	return if $Coro::current == $Coro::main;
		2828
		2829	my $signal = new Coro::Signal;
		2830	push @WAIT_FOR_TICK, $signal;
		2831	$signal->wait;
		2832	}
		2833
		2834	sub wait_for_tick_begin {
		2835	return unless $TICK_WATCHER->is_active;
		2836	return if $Coro::current == $Coro::main;
		2837
		2838	my $signal = new Coro::Signal;
		2839	push @WAIT_FOR_TICK_BEGIN, $signal;
		2840	$signal->wait;
		2841	}
		2842
		2843	my $min = 1e6;#d#
		2844	my $avg = 10;
2275	$TICK_WATCHER = Event->timer (	2845	$TICK_WATCHER = Event->timer (
2276	reentrant => 0,	2846	reentrant => 0,
		2847	parked => 1,
2277	prio => 0,	2848	prio => 0,
2278	at => $NEXT_TICK || $TICK,	2849	at => $NEXT_TICK || $TICK,
2279	data => WF_AUTOCANCEL,	2850	data => WF_AUTOCANCEL,
2280	cb => sub {	2851	cb => sub {
		2852	if ($Coro::current != $Coro::main) {
		2853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2854	unless ++$bug_warning > 10;
		2855	return;
		2856	}
		2857
		2858	$NOW = $tick_start = Event::time;
		2859
2281	cf::server_tick; # one server iteration	2860	cf::server_tick; # one server iteration
		2861
		2862	0 && sync_job {#d#
		2863	for(1..10) {
		2864	my $t = Event::time;
		2865	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2866	or die;
		2867
		2868	$map->width (50);
		2869	$map->height (50);
		2870	$map->alloc;
		2871	$map->_load_objects ("/tmp/x.map", 1);
		2872	my $t = Event::time - $t;
		2873
		2874	#next unless $t < 0.0013;#d#
		2875	if ($t < $min) {
		2876	$min = $t;
		2877	}
		2878	$avg = $avg * 0.99 + $t * 0.01;
		2879	}
		2880	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2881	exit 0;
		2882	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2883	};
		2884
2282	$RUNTIME += $TICK;	2885	$RUNTIME += $TICK;
2283	$NEXT_TICK += $TICK;	2886	$NEXT_TICK += $TICK;
2284		2887
		2888	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2889	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2890	Coro::async_pool {
		2891	write_runtime
		2892	or warn "ERROR: unable to write runtime file: $!";
		2893	};
		2894	}
		2895
		2896	# my $AFTER = Event::time;
		2897	# warn $AFTER - $NOW;#d#
		2898
		2899	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2900	$sig->send;
		2901	}
		2902	while (my $sig = shift @WAIT_FOR_TICK) {
		2903	$sig->send;
		2904	}
		2905
		2906	$NOW = Event::time;
		2907
2285	# if we are delayed by four ticks or more, skip them all	2908	# if we are delayed by four ticks or more, skip them all
2286	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2909	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2287		2910
2288	$TICK_WATCHER->at ($NEXT_TICK);	2911	$TICK_WATCHER->at ($NEXT_TICK);
2289	$TICK_WATCHER->start;	2912	$TICK_WATCHER->start;
		2913
		2914	$LOAD = ($NOW - $tick_start) / $TICK;
		2915	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2916
		2917	_post_tick;
		2918
		2919
2290	},	2920	},
2291	);	2921	);
2292		2922
		2923	{
2293	IO::AIO::max_poll_time $TICK * 0.2;	2924	BDB::max_poll_time $TICK * 0.1;
2294		2925	$BDB_POLL_WATCHER = Event->io (
2295	Event->io (	2926	reentrant => 0,
2296	fd => IO::AIO::poll_fileno,	2927	fd => BDB::poll_fileno,
2297	poll => 'r',	2928	poll => 'r',
2298	prio => 5,	2929	prio => 0,
2299	data => WF_AUTOCANCEL,
2300	cb => \&IO::AIO::poll_cb,
2301	);
2302
2303	Event->timer (
2304	data => WF_AUTOCANCEL,	2930	data => WF_AUTOCANCEL,
2305	after => 0,	2931	cb => \&BDB::poll_cb,
2306	interval => 10,	2932	);
2307	cb => sub {	2933	BDB::min_parallel 8;
2308	(Coro::unblock_sub {	2934
2309	write_runtime	2935	BDB::set_sync_prepare {
2310	or warn "ERROR: unable to write runtime file: $!";	2936	my $status;
		2937	my $current = $Coro::current;
		2938	(
		2939	sub {
		2940	$status = $!;
		2941	$current->ready; undef $current;
		2942	},
		2943	sub {
		2944	Coro::schedule while defined $current;
		2945	$! = $status;
		2946	},
		2947	)
		2948	};
		2949
		2950	unless ($DB_ENV) {
		2951	$DB_ENV = BDB::db_env_create;
		2952
		2953	cf::sync_job {
		2954	eval {
		2955	BDB::db_env_open
		2956	$DB_ENV,
		2957	$BDBDIR,
		2958	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2959	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2960	0666;
		2961
		2962	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2963
		2964	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2965	$DB_ENV->set_lk_detect;
		2966	};
		2967
		2968	cf::cleanup "db_env_open(db): $@" if $@;
2311	})->();	2969	};
2312	},	2970	}
2313	);	2971	}
		2972
		2973	{
		2974	IO::AIO::min_parallel 8;
		2975
		2976	undef $Coro::AIO::WATCHER;
		2977	IO::AIO::max_poll_time $TICK * 0.1;
		2978	$AIO_POLL_WATCHER = Event->io (
		2979	reentrant => 0,
		2980	data => WF_AUTOCANCEL,
		2981	fd => IO::AIO::poll_fileno,
		2982	poll => 'r',
		2983	prio => 6,
		2984	cb => \&IO::AIO::poll_cb,
		2985	);
		2986	}
		2987
		2988	my $_log_backtrace;
		2989
		2990	sub _log_backtrace {
		2991	my ($msg, @addr) = @_;
		2992
		2993	$msg =~ s/\n//;
		2994
		2995	# limit the # of concurrent backtraces
		2996	if ($_log_backtrace < 2) {
		2997	++$_log_backtrace;
		2998	async {
		2999	my @bt = fork_call {
		3000	@addr = map { sprintf "%x", $_ } @addr;
		3001	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3002	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3003	or die "addr2line: $!";
		3004
		3005	my @funcs;
		3006	my @res = <$fh>;
		3007	chomp for @res;
		3008	while (@res) {
		3009	my ($func, $line) = splice @res, 0, 2, ();
		3010	push @funcs, "[$func] $line";
		3011	}
		3012
		3013	@funcs
		3014	};
		3015
		3016	LOG llevInfo, "[ABT] $msg\n";
		3017	LOG llevInfo, "[ABT] $_\n" for @bt;
		3018	--$_log_backtrace;
		3019	};
		3020	} else {
		3021	LOG llevInfo, "[ABT] $msg\n";
		3022	LOG llevInfo, "[ABT] [suppressed]\n";
		3023	}
		3024	}
		3025
		3026	# load additional modules
		3027	use cf::pod;
2314		3028
2315	END { cf::emergency_save }	3029	END { cf::emergency_save }
2316		3030
2317	1	3031	1
2318		3032

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