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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.141 by root, Fri Jan 5 20:08:53 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;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
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
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	91
55	our %EXT_CORO;	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 $tick_start; # for load detecting purposes
56		98
57	binmode STDOUT;	99	binmode STDOUT;
58	binmode STDERR;	100	binmode STDERR;
59		101
60	# read virtual server time, if available	102	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
65	}	107	}
66		108
67	mkdir cf::localdir;	109	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		111
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
76		115
77	#############################################################################	116	#############################################################################
78		117
79	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
80		119
…		…
87	=item $cf::RUNTIME	126	=item $cf::RUNTIME
88		127
89	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
90	every server tick.	129	every server tick.
91		130
92	=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
93		134
94	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		139
97	=item $cf::NOW	140	=item $cf::NOW
98		141
99	The time of the last (current) server tick.	142	The time of the last (current) server tick.
100		143
101	=item $cf::TICK	144	=item $cf::TICK
102		145
103	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.
104		157
105	=item %cf::CFG	158	=item %cf::CFG
106		159
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		168
110	=back	169	=back
111		170
112	=cut	171	=cut
113		172
114	BEGIN {	173	BEGIN {
115	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	175	my $msg = join "", @_;
117	utf8::encode $msg;
118		176
119	$msg .= "\n"	177	$msg .= "\n"
120	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
121		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
123	};	184	};
124	}	185	}
125		186
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		206
146	$Event::DIED = sub {	207	$Event::DIED = sub {
147	warn "error in event callback: @_";	208	warn "error in event callback: @_";
148	};	209	};
149		210
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
155		212
156	=over 4	213	=over 4
157		214
158	=cut	215	=item dumpval $ref
159		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
160	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
161		239
162	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
163		241
164	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
165		243
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
174		245
175	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
176
177	=cut
178
179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		247
184	=item cf::lock_wait $string	248	=item cf::lock_wait $string
185		249
186	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
187		251
…		…
193	returned.	257	returned.
194		258
195	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
196	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
197		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
198	=cut	266	=cut
199		267
200	our %LOCK;	268	our %LOCK;
201		269
202	sub lock_wait($) {	270	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
223	}	291	}
224	}	292	}
225		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
226	sub freeze_mainloop {	300	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
228		302
229	my $guard = Coro::guard { $TICK_WATCHER->start };	303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
230	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
231	$guard	307	$guard
232	}	308	}
233		309
234	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
…		…
256		332
257	sub sync_job(&) {	333	sub sync_job(&) {
258	my ($job) = @_;	334	my ($job) = @_;
259		335
260	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
261	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
263		341
264	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
265	# (but this is cancel-safe)	343	# (but this is cancel-safe)
…		…
276		354
277	while ($busy) {	355	while ($busy) {
278	Coro::cede or Event::one_event;	356	Coro::cede or Event::one_event;
279	}	357	}
280		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
281	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
282	} else {	367	} else {
283	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
284		369
285	$job->()	370	$job->()
286	}	371	}
287	}	372	}
288		373
289	=item $coro = cf::async_ext { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
290		375
291	Like async, but this coro is automcatially being canceled when the	376	Like async, but this coro is automatically being canceled when the
292	extension calling this is being unloaded.	377	extension calling this is being unloaded.
293		378
294	=cut	379	=cut
295		380
296	sub async_ext(&) {	381	sub async_ext(&) {
…		…
305		390
306	$coro	391	$coro
307	}	392	}
308		393
309	sub write_runtime {	394	sub write_runtime {
310	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";
311		403
312	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	404	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
313	or return;	405	or return;
314		406
		407	my $value = $cf::RUNTIME + 90 + 10;
315	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
316	(aio_write $fh, 0, (length $value), $value, 0) <= 0	411	(aio_write $fh, 0, (length $value), $value, 0) <= 0
317	and return;	412	and return;
318		413
		414	# always fsync - this file is important
319	aio_fsync $fh	415	aio_fsync $fh
320	and return;	416	and return;
321		417
		418	# touch it again to show we are up-to-date
		419	aio_utime $fh, undef, undef;
		420
322	close $fh	421	close $fh
323	or return;	422	or return;
324		423
325	aio_rename "$runtime~", $runtime	424	aio_rename "$runtime~", $runtime
326	and return;	425	and return;
327		426
		427	warn "runtime file written.\n";#d#
		428
328	1	429	1
329	}	430	}
330		431
		432	=item cf::datalog type => key => value, ...
		433
		434	Log a datalog packet of the given type with the given key-value pairs.
		435
		436	=cut
		437
		438	sub datalog($@) {
		439	my ($type, %kv) = @_;
		440	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		441	}
		442
331	=back	443	=back
332		444
333	=cut	445	=cut
334
335	#############################################################################
336
337	package cf::path;
338
339	sub new {
340	my ($class, $path, $base) = @_;
341
342	$path = $path->as_string if ref $path;
343
344	my $self = bless { }, $class;
345
346	# {... are special paths that are not touched
347	# ?xxx/... are special absolute paths
348	# ?random/... random maps
349	# /! non-realised random map exit
350	# /... normal maps
351	# ~/... per-player maps without a specific player (DO NOT USE)
352	# ~user/... per-player map of a specific user
353
354	if ($path =~ /^{/) {
355	# fine as it is
356	} elsif ($path =~ s{^\?random/}{}) {
357	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
358	$self->{random} = cf::from_json $data;
359	} else {
360	if ($path =~ s{^~([^/]+)?}{}) {
361	$self->{user_rel} = 1;
362
363	if (defined $1) {
364	$self->{user} = $1;
365	} elsif ($base =~ m{^~([^/]+)/}) {
366	$self->{user} = $1;
367	} else {
368	warn "cannot resolve user-relative path without user <$path,$base>\n";
369	}
370	} elsif ($path =~ /^\//) {
371	# already absolute
372	} else {
373	$base =~ s{[^/]+/?$}{};
374	return $class->new ("$base/$path");
375	}
376
377	for ($path) {
378	redo if s{/\.?/}{/};
379	redo if s{/[^/]+/\.\./}{/};
380	}
381	}
382
383	$self->{path} = $path;
384
385	$self
386	}
387
388	# the name / primary key / in-game path
389	sub as_string {
390	my ($self) = @_;
391
392	$self->{user_rel} ? "~$self->{user}$self->{path}"
393	: $self->{random} ? "?random/$self->{path}"
394	: $self->{path}
395	}
396
397	# the displayed name, this is a one way mapping
398	sub visible_name {
399	my ($self) = @_;
400
401	# if (my $rmp = $self->{random}) {
402	# # todo: be more intelligent about this
403	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
404	# } else {
405	$self->as_string
406	# }
407	}
408
409	# escape the /'s in the path
410	sub _escaped_path {
411	# ∕ is U+2215
412	(my $path = $_[0]{path}) =~ s/\//∕/g;
413	$path
414	}
415
416	# the original (read-only) location
417	sub load_path {
418	my ($self) = @_;
419
420	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
421	}
422
423	# the temporary/swap location
424	sub save_path {
425	my ($self) = @_;
426
427	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
428	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
429	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
430	}
431
432	# the unique path, might be eq to save_path
433	sub uniq_path {
434	my ($self) = @_;
435
436	$self->{user_rel} || $self->{random}
437	? undef
438	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
439	}
440
441	# return random map parameters, or undef
442	sub random_map_params {
443	my ($self) = @_;
444
445	$self->{random}
446	}
447
448	# this is somewhat ugly, but style maps do need special treatment
449	sub is_style_map {
450	$_[0]{path} =~ m{^/styles/}
451	}
452
453	package cf;
454		446
455	#############################################################################	447	#############################################################################
456		448
457	=head2 ATTACHABLE OBJECTS	449	=head2 ATTACHABLE OBJECTS
458		450
…		…
584	our @CB_TYPE = (); # registry for type (cf-object class) based events	576	our @CB_TYPE = (); # registry for type (cf-object class) based events
585	our @CB_MAP = ();	577	our @CB_MAP = ();
586		578
587	my %attachment;	579	my %attachment;
588		580
		581	sub cf::attachable::thawer_merge {
		582	# simply override everything except _meta
		583	local $_[0]{_meta};
		584	%{$_[0]} = %{$_[1]};
		585	}
		586
589	sub _attach_cb($$$$) {	587	sub _attach_cb($$$$) {
590	my ($registry, $event, $prio, $cb) = @_;	588	my ($registry, $event, $prio, $cb) = @_;
591		589
592	use sort 'stable';	590	use sort 'stable';
593		591
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	625	$registry = $CB_TYPE[$object_type] ||= [];
628		626
629	} elsif ($type eq "subtype") {	627	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	628	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	629	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	630	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		631
634	} elsif ($type eq "package") {	632	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	633	my $pkg = shift @arg;
636		634
637	while (my ($name, $id) = each %cb_id) {	635	while (my ($name, $id) = each %cb_id) {
…		…
678	if (ref $_[0]) {	676	if (ref $_[0]) {
679	_object_attach @_;	677	_object_attach @_;
680	} else {	678	} else {
681	_attach shift->_attach_registry, @_;	679	_attach shift->_attach_registry, @_;
682	}	680	}
		681	_recalc_want;
683	};	682	};
684		683
685	# all those should be optimised	684	# all those should be optimised
686	sub cf::attachable::detach {	685	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	686	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	689	delete $obj->{_attachment}{$name};
691	reattach ($obj);	690	reattach ($obj);
692	} else {	691	} else {
693	Carp::croak "cannot, currently, detach class attachments";	692	Carp::croak "cannot, currently, detach class attachments";
694	}	693	}
		694	_recalc_want;
695	};	695	};
696		696
697	sub cf::attachable::attached {	697	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	698	my ($obj, $name) = @_;
699		699
…		…
764	# object support	764	# object support
765		765
766	sub reattach {	766	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	767	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	768	my ($obj) = @_;
		769
		770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
769		771
770	my $registry = $obj->registry;	772	my $registry = $obj->registry;
771		773
772	@$registry = ();	774	@$registry = ();
773		775
…		…
820	$filename, length $$rdata, scalar @$objs;	822	$filename, length $$rdata, scalar @$objs;
821		823
822	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	825	chmod SAVE_MODE, $fh;
824	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
825	aio_fsync $fh;	827	aio_fsync $fh if $cf::USE_FSYNC;
826	close $fh;	828	close $fh;
827		829
828	if (@$objs) {	830	if (@$objs) {
829	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) {
830	chmod SAVE_MODE, $fh;	832	chmod SAVE_MODE, $fh;
831	my $data = Storable::nfreeze { version => 1, objs => $objs };	833	my $data = Storable::nfreeze { version => 1, objs => $objs };
832	aio_write $fh, 0, (length $data), $data, 0;	834	aio_write $fh, 0, (length $data), $data, 0;
833	aio_fsync $fh;	835	aio_fsync $fh if $cf::USE_FSYNC;
834	close $fh;	836	close $fh;
835	aio_rename "$filename.pst~", "$filename.pst";	837	aio_rename "$filename.pst~", "$filename.pst";
836	}	838	}
837	} else {	839	} else {
838	aio_unlink "$filename.pst";	840	aio_unlink "$filename.pst";
…		…
905	=cut	907	=cut
906		908
907	sub register_extcmd {	909	sub register_extcmd {
908	my ($name, $cb) = @_;	910	my ($name, $cb) = @_;
909		911
910	my $caller = caller;
911	#warn "registering extcmd '$name' to '$caller'";
912
913	$EXTCMD{$name} = [$cb, $caller];	912	$EXTCMD{$name} = $cb;
914	}	913	}
915		914
916	cf::player->attach (	915	cf::player->attach (
917	on_command => sub {	916	on_command => sub {
918	my ($pl, $name, $params) = @_;	917	my ($pl, $name, $params) = @_;
…		…
931		930
932	my $msg = eval { from_json $buf };	931	my $msg = eval { from_json $buf };
933		932
934	if (ref $msg) {	933	if (ref $msg) {
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
936	if (my %reply = $cb->[0]->($pl, $msg)) {	935	if (my %reply = $cb->($pl, $msg)) {
937	$pl->ext_reply ($msg->{msgid}, %reply);	936	$pl->ext_reply ($msg->{msgid}, %reply);
938	}	937	}
939	}	938	}
940	} else {	939	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
943		942
944	cf::override;	943	cf::override;
945	},	944	},
946	);	945	);
947		946
948	sub register {
949	my ($base, $pkg) = @_;
950
951	#TODO
952	}
953
954	sub load_extension {	947	sub load_extension {
955	my ($path) = @_;	948	my ($path) = @_;
956		949
957	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
958	my $base = $1;	951	my $base = $1;
959	my $pkg = $1;	952	my $pkg = $1;
960	$pkg =~ s/[^[:word:]]/_/g;	953	$pkg =~ s/[^[:word:]]/_/g;
961	$pkg = "ext::$pkg";	954	$pkg = "ext::$pkg";
962		955
963	warn "loading '$path' into '$pkg'\n";	956	warn "... loading '$path' into '$pkg'\n";
964		957
965	open my $fh, "<:utf8", $path	958	open my $fh, "<:utf8", $path
966	or die "$path: $!";	959	or die "$path: $!";
967		960
968	my $source =	961	my $source =
969	"package $pkg; use strict; use utf8;\n"	962	"package $pkg; use strict; use utf8;\n"
970	. "#line 1 \"$path\"\n{\n"	963	. "#line 1 \"$path\"\n{\n"
971	. (do { local $/; <$fh> })	964	. (do { local $/; <$fh> })
972	. "\n};\n1";	965	. "\n};\n1";
973		966
974	eval $source	967	unless (eval $source) {
975	or die $@ ? "$path: $@\n"	968	my $msg = $@ ? "$path: $@\n"
976	: "extension disabled.\n";	969	: "extension disabled.\n";
977		970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
978	push @exts, $pkg;	971	warn $@;
979	$ext_pkg{$base} = $pkg;	972	warn "mandatory extension failed to load, exiting.\n";
980		973	exit 1;
981	# no strict 'refs';	974	}
982	# @{"$pkg\::ISA"} = ext::;	975	die $@;
983
984	register $base, $pkg;
985	}
986
987	sub unload_extension {
988	my ($pkg) = @_;
989
990	warn "removing extension $pkg\n";
991
992	# remove hooks
993	#TODO
994	# for my $idx (0 .. $#PLUGIN_EVENT) {
995	# delete $hook[$idx]{$pkg};
996	# }	976	}
997		977
998	# remove commands	978	push @EXTS, $pkg;
999	for my $name (keys %COMMAND) {
1000	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1001
1002	if (@cb) {
1003	$COMMAND{$name} = \@cb;
1004	} else {
1005	delete $COMMAND{$name};
1006	}
1007	}
1008
1009	# remove extcmds
1010	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1011	delete $EXTCMD{$name};
1012	}
1013
1014	if (my $cb = $pkg->can ("unload")) {
1015	eval {
1016	$cb->($pkg);
1017	1
1018	} or warn "$pkg unloaded, but with errors: $@";
1019	}
1020
1021	Symbol::delete_package $pkg;
1022	}	979	}
1023		980
1024	sub load_extensions {	981	sub load_extensions {
1025	for my $ext (<$LIBDIR/*.ext>) {	982	for my $ext (<$LIBDIR/*.ext>) {
1026	next unless -r $ext;	983	next unless -r $ext;
…		…
1030	} or warn "$ext not loaded: $@";	987	} or warn "$ext not loaded: $@";
1031	}	988	}
1032	}	989	}
1033		990
1034	#############################################################################	991	#############################################################################
1035	# load/save/clean perl data associated with a map
1036
1037	*cf::mapsupport::on_clean = sub {
1038	my ($map) = @_;
1039
1040	my $path = $map->tmpname;
1041	defined $path or return;
1042
1043	unlink "$path.pst";
1044	};
1045
1046	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1047
1048	#############################################################################
1049	# load/save perl data associated with player->ob objects
1050
1051	sub all_objects(@) {
1052	@_, map all_objects ($_->inv), @_
1053	}
1054
1055	# TODO: compatibility cruft, remove when no longer needed
1056	cf::player->attach (
1057	on_load => sub {
1058	my ($pl, $path) = @_;
1059
1060	for my $o (all_objects $pl->ob) {
1061	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1062	$o->set_ob_key_value ("_perl_data");
1063
1064	%$o = %{ Storable::thaw pack "H*", $value };
1065	}
1066	}
1067	},
1068	);
1069
1070	#############################################################################
1071		992
1072	=head2 CORE EXTENSIONS	993	=head2 CORE EXTENSIONS
1073		994
1074	Functions and methods that extend core crossfire objects.	995	Functions and methods that extend core crossfire objects.
1075		996
		997	=cut
		998
		999	package cf::player;
		1000
		1001	use Coro::AIO;
		1002
1076	=head3 cf::player	1003	=head3 cf::player
1077		1004
1078	=over 4	1005	=over 4
1079		1006
1080	=item cf::player::exists $login	1007	=item cf::player::find $login
1081		1008
1082	Returns true when the given account exists.	1009	Returns the given player object, loading it if necessary (might block).
1083		1010
1084	=cut	1011	=cut
1085		1012
1086	sub cf::player::exists($) {	1013	sub playerdir($) {
1087	cf::player::find $_[0]	1014	"$PLAYERDIR/"
1088	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1015	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1089	}	1016	}
1090		1017
		1018	sub path($) {
		1019	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1020
		1021	(playerdir $login) . "/playerdata"
		1022	}
		1023
		1024	sub find_active($) {
		1025	$cf::PLAYER{$_[0]}
		1026	and $cf::PLAYER{$_[0]}->active
		1027	and $cf::PLAYER{$_[0]}
		1028	}
		1029
		1030	sub exists($) {
		1031	my ($login) = @_;
		1032
		1033	$cf::PLAYER{$login}
		1034	or cf::sync_job { !aio_stat path $login }
		1035	}
		1036
		1037	sub find($) {
		1038	return $cf::PLAYER{$_[0]} || do {
		1039	my $login = $_[0];
		1040
		1041	my $guard = cf::lock_acquire "user_find:$login";
		1042
		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	}
		1055	}
		1056	}
		1057
		1058	sub save($) {
		1059	my ($pl) = @_;
		1060
		1061	return if $pl->{deny_save};
		1062
		1063	my $path = path $pl;
		1064	my $guard = cf::lock_acquire "user_save:$path";
		1065
		1066	return if $pl->{deny_save};
		1067
		1068	aio_mkdir playerdir $pl, 0770;
		1069	$pl->{last_save} = $cf::RUNTIME;
		1070
		1071	$pl->save_pl ($path);
		1072	Coro::cede;
		1073	}
		1074
		1075	sub new($) {
		1076	my ($login) = @_;
		1077
		1078	my $self = create;
		1079
		1080	$self->ob->name ($login);
		1081	$self->{deny_save} = 1;
		1082
		1083	$cf::PLAYER{$login} = $self;
		1084
		1085	$self
		1086	}
		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
		1095	sub quit_character {
		1096	my ($pl) = @_;
		1097
		1098	my $name = $pl->ob->name;
		1099
		1100	$pl->{deny_save} = 1;
		1101	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1102
		1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1104	$pl->deactivate;
		1105	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1106	$pl->ns->destroy if $pl->ns;
		1107
		1108	my $path = playerdir $pl;
		1109	my $temp = "$path~$cf::RUNTIME~deleting~";
		1110	aio_rename $path, $temp;
		1111	delete $cf::PLAYER{$pl->ob->name};
		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
		1119	IO::AIO::aio_rmtree $temp;
		1120	}
		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
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1189	=item $player->ext_reply ($msgid, %msg)
1092		1190
1093	Sends an ext reply to the player.	1191	Sends an ext reply to the player.
1094		1192
1095	=cut	1193	=cut
1096		1194
1097	sub cf::player::ext_reply($$$%) {	1195	sub ext_reply($$%) {
1098	my ($self, $id, %msg) = @_;	1196	my ($self, $id, %msg) = @_;
1099		1197
1100	$msg{msgid} = $id;	1198	$msg{msgid} = $id;
1101		1199
1102	$self->send ("ext " . to_json \%msg);	1200	$self->send ("ext " . cf::to_json \%msg);
		1201	}
		1202
		1203	=item $player->ext_event ($type, %msg)
		1204
		1205	Sends an ext event to the client.
		1206
		1207	=cut
		1208
		1209	sub ext_event($$%) {
		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
1103	}	1242	}
1104		1243
1105	=back	1244	=back
1106
1107		1245
1108	=head3 cf::map	1246	=head3 cf::map
1109		1247
1110	=over 4	1248	=over 4
1111		1249
…		…
1114	package cf::map;	1252	package cf::map;
1115		1253
1116	use Fcntl;	1254	use Fcntl;
1117	use Coro::AIO;	1255	use Coro::AIO;
1118		1256
		1257	use overload
		1258	'""' => \&as_string,
		1259	fallback => 1;
		1260
1119	our $MAX_RESET = 3600;	1261	our $MAX_RESET = 3600;
1120	our $DEFAULT_RESET = 3000;	1262	our $DEFAULT_RESET = 3000;
1121		1263
1122	sub generate_random_map {	1264	sub generate_random_map {
1123	my ($path, $rmp) = @_;	1265	my ($self, $rmp) = @_;
1124
1125	# mit "rum" bekleckern, nicht	1266	# mit "rum" bekleckern, nicht
1126	cf::map::_create_random_map	1267	$self->_create_random_map (
1127	$path,
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},	1271	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},	1272	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1273	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1274	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1275	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$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},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1277	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(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"
1139	}	1409	}
1140		1410
1141	# and all this just because we cannot iterate over	1411	# and all this just because we cannot iterate over
1142	# all maps in C++...	1412	# all maps in C++...
1143	sub change_all_map_light {	1413	sub change_all_map_light {
…		…
1145		1415
1146	$_->change_map_light ($change)	1416	$_->change_map_light ($change)
1147	for grep $_->outdoor, values %cf::MAP;	1417	for grep $_->outdoor, values %cf::MAP;
1148	}	1418	}
1149		1419
		1420	sub unlink_save {
		1421	my ($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
1150	sub try_load_header($) {	1428	sub load_header_from($) {
1151	my ($path) = @_;	1429	my ($self, $path) = @_;
1152		1430
1153	utf8::encode $path;	1431	utf8::encode $path;
1154	aio_open $path, O_RDONLY, 0	1432	#aio_open $path, O_RDONLY, 0
		1433	# or return;
		1434
		1435	$self->_load_header ($path)
1155	or return;	1436	or return;
1156		1437
1157	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
1158	or return;	1481	or return;
		1482	$self->prepare_orig;
		1483	}
1159		1484
1160	# for better error messages only, will be overwritten	1485	$self->default_region (cf::region::find_by_path $self->{path})
1161	$map->path ($path);	1486	unless $self->default_region;
1162		1487
1163	$map->load_header ($path)	1488	1
1164	or return;
1165
1166	$map->{load_path} = $path;
1167
1168	$map
1169	}	1489	}
1170		1490
1171	sub find;	1491	sub find;
1172	sub find {	1492	sub find {
1173	my ($path, $origin) = @_;	1493	my ($path, $origin) = @_;
1174		1494
1175	#warn "find<$path,$origin>\n";#d#
1176
1177	$path = new cf::path $path, $origin && $origin->path;	1495	$path = normalise $path, $origin && $origin->path;
1178	my $key = $path->as_string;
1179		1496
1180	cf::lock_wait "map_find:$key";	1497	cf::lock_wait "map_find:$path";
1181		1498
1182	$cf::MAP{$key} || do {	1499	$cf::MAP{$path} || do {
1183	my $guard = cf::lock_acquire "map_find:$key";	1500	my $guard = cf::lock_acquire "map_find:$path";
1184		1501	my $map = new_from_path cf::map $path
1185	# do it the slow way
1186	my $map = try_load_header $path->save_path;
1187
1188	Coro::cede;
1189
1190	if ($map) {
1191	$map->last_access ((delete $map->{last_access})
1192	|| $cf::RUNTIME); #d#
1193	# safety
1194	$map->{instantiate_time} = $cf::RUNTIME
1195	if $map->{instantiate_time} > $cf::RUNTIME;
1196	} else {
1197	if (my $rmp = $path->random_map_params) {
1198	$map = generate_random_map $key, $rmp;
1199	} else {
1200	$map = try_load_header $path->load_path;
1201	}
1202
1203	$map or return;	1502	or return;
1204		1503
1205	$map->{load_original} = 1;
1206	$map->{instantiate_time} = $cf::RUNTIME;
1207	$map->last_access ($cf::RUNTIME);
1208	$map->instantiate;
1209
1210	# per-player maps become, after loading, normal maps
1211	$map->per_player (0) if $path->{user_rel};
1212	}
1213
1214	$map->path ($key);
1215	$map->{path} = $path;
1216	$map->{last_save} = $cf::RUNTIME;	1504	$map->{last_save} = $cf::RUNTIME;
1217		1505
1218	Coro::cede;	1506	$map->load_header
		1507	or return;
1219		1508
1220	if ($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;
1221	$map->reset;	1512	$map->reset;
1222	undef $guard;	1513	undef $guard;
1223	$map = find $path	1514	return find $path;
1224	or return;
1225	}	1515	}
1226		1516
1227	$cf::MAP{$key} = $map	1517	$cf::MAP{$path} = $map
1228	}	1518	}
1229	}	1519	}
		1520
		1521	sub pre_load { }
		1522	sub post_load { }
1230		1523
1231	sub load {	1524	sub load {
1232	my ($self) = @_;	1525	my ($self) = @_;
1233		1526
		1527	local $self->{deny_reset} = 1; # loading can take a long time
		1528
1234	my $path = $self->{path};	1529	my $path = $self->{path};
		1530
		1531	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1532	my $guard = cf::lock_acquire "map_load:$path";
1236		1533
1237	return if $self->in_memory != cf::MAP_SWAPPED;	1534	return if $self->in_memory != cf::MAP_SWAPPED;
1238		1535
1239	$self->in_memory (cf::MAP_LOADING);	1536	$self->in_memory (cf::MAP_LOADING);
1240		1537
1241	$self->alloc;	1538	$self->alloc;
		1539
		1540	$self->pre_load;
		1541	Coro::cede;
		1542
1242	$self->load_objects ($self->{load_path}, 1)	1543	$self->_load_objects ($self->{load_path}, 1)
1243	or return;	1544	or return;
1244		1545
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1246	if delete $self->{load_original};	1547	if delete $self->{load_original};
1247		1548
1248	if (my $uniq = $path->uniq_path) {	1549	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	1550	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	1551	if (aio_open $uniq, O_RDONLY, 0) {
1251	$self->clear_unique_items;	1552	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	1553	$self->_load_objects ($uniq, 0);
1253	}	1554	}
1254	}	1555	}
1255		1556
1256	Coro::cede;	1557	Coro::cede;
1257
1258	# now do the right thing for maps	1558	# now do the right thing for maps
1259	$self->link_multipart_objects;	1559	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	1560	$self->difficulty ($self->estimate_difficulty)
1270	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;
1271	$self->activate;	1571	$self->activate;
1272	}	1572	}
1273		1573
1274	Coro::cede;
1275
1276	$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	$neigh->load;
		1610	}
1277	}	1611	}
1278		1612
1279	sub find_sync {	1613	sub find_sync {
1280	my ($path, $origin) = @_;	1614	my ($path, $origin) = @_;
1281		1615
1282	cf::sync_job { cf::map::find $path, $origin }	1616	cf::sync_job { find $path, $origin }
1283	}	1617	}
1284		1618
1285	sub do_load_sync {	1619	sub do_load_sync {
1286	my ($map) = @_;	1620	my ($map) = @_;
1287		1621
1288	cf::sync_job { $map->load };	1622	cf::sync_job { $map->load };
1289	}	1623	}
1290		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	$MAP_PREFETCHER->prio (6);
		1651
		1652	()
		1653	}
		1654
1291	sub save {	1655	sub save {
1292	my ($self) = @_;	1656	my ($self) = @_;
1293		1657
1294	my $lock = cf::lock_acquire "map_data:" . $self->path;	1658	my $lock = cf::lock_acquire "map_data:" . $self->path;
1295		1659
1296	$self->{last_save} = $cf::RUNTIME;	1660	$self->{last_save} = $cf::RUNTIME;
1297		1661
1298	return unless $self->dirty;	1662	return unless $self->dirty;
1299		1663
1300	my $save = $self->{path}->save_path; utf8::encode $save;	1664	my $save = $self->save_path; utf8::encode $save;
1301	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1665	my $uniq = $self->uniq_path; utf8::encode $uniq;
1302		1666
1303	$self->{load_path} = $save;	1667	$self->{load_path} = $save;
1304		1668
1305	return if $self->{deny_save};	1669	return if $self->{deny_save};
1306		1670
1307	local $self->{last_access} = $self->last_access;#d#	1671	local $self->{last_access} = $self->last_access;#d#
1308		1672
		1673	cf::async {
		1674	$_->contr->save for $self->players;
		1675	};
		1676
1309	if ($uniq) {	1677	if ($uniq) {
1310	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1311	$self->save_objects ($uniq, cf::IO_UNIQUES);	1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1312	} else {	1680	} else {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1681	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1314	}	1682	}
1315	}	1683	}
1316		1684
1317	sub swap_out {	1685	sub swap_out {
1318	my ($self) = @_;	1686	my ($self) = @_;
…		…
1332		1700
1333	sub reset_at {	1701	sub reset_at {
1334	my ($self) = @_;	1702	my ($self) = @_;
1335		1703
1336	# TODO: safety, remove and allow resettable per-player maps	1704	# TODO: safety, remove and allow resettable per-player maps
1337	return 1e99 if $self->{path}{user_rel};	1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1338	return 1e99 if $self->{deny_reset};	1706	return 1e99 if $self->{deny_reset};
1339		1707
1340	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1341	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1342		1710
…		…
1347	my ($self) = @_;	1715	my ($self) = @_;
1348		1716
1349	$self->reset_at <= $cf::RUNTIME	1717	$self->reset_at <= $cf::RUNTIME
1350	}	1718	}
1351		1719
1352	sub unlink_save {
1353	my ($self) = @_;
1354
1355	utf8::encode (my $save = $self->{path}->save_path);
1356	aioreq_pri 3; IO::AIO::aio_unlink $save;
1357	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1358	}
1359
1360	sub rename {
1361	my ($self, $new_path) = @_;
1362
1363	$self->unlink_save;
1364
1365	delete $cf::MAP{$self->path};
1366	$self->{path} = new cf::path $new_path;
1367	$self->path ($self->{path}->as_string);
1368	$cf::MAP{$self->path} = $self;
1369
1370	$self->save;
1371	}
1372
1373	sub reset {	1720	sub reset {
1374	my ($self) = @_;	1721	my ($self) = @_;
1375		1722
1376	my $lock = cf::lock_acquire "map_data:" . $self->path;	1723	my $lock = cf::lock_acquire "map_data:$self->{path}";
1377		1724
1378	return if $self->players;	1725	return if $self->players;
1379	return if $self->{path}{user_rel};#d#	1726	return if $self->isa ("ext::map_per_player");#d#
1380		1727
1381	warn "resetting map ", $self->path;#d#	1728	warn "resetting map ", $self->path;#d#
1382		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
1383	delete $cf::MAP{$self->path};	1740	delete $cf::MAP{$self->path};
		1741
		1742	$self->clear;
1384		1743
1385	$_->clear_links_to ($self) for values %cf::MAP;	1744	$_->clear_links_to ($self) for values %cf::MAP;
1386		1745
1387	$self->unlink_save;	1746	$self->unlink_save;
1388	$self->destroy;	1747	$self->destroy;
…		…
1391	my $nuke_counter = "aaaa";	1750	my $nuke_counter = "aaaa";
1392		1751
1393	sub nuke {	1752	sub nuke {
1394	my ($self) = @_;	1753	my ($self) = @_;
1395		1754
		1755	delete $cf::MAP{$self->path};
		1756
		1757	$self->unlink_save;
		1758
		1759	bless $self, "cf::map";
		1760	delete $self->{deny_reset};
1396	$self->{deny_save} = 1;	1761	$self->{deny_save} = 1;
1397	$self->reset_timeout (1);	1762	$self->reset_timeout (1);
1398	$self->rename ("{nuke}/" . ($nuke_counter++));	1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1764
		1765	$cf::MAP{$self->path} = $self;
		1766
1399	$self->reset; # polite request, might not happen	1767	$self->reset; # polite request, might not happen
1400	}	1768	}
1401		1769
1402	sub customise_for {	1770	=item cf::map::unique_maps
1403	my ($map, $ob) = @_;
1404		1771
1405	if ($map->per_player) {	1772	Returns an arrayref of paths of all shared maps that have
1406	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1773	instantiated unique items. May block.
1407	}
1408		1774
1409	$map	1775	=cut
1410	}
1411		1776
1412	sub emergency_save {	1777	sub unique_maps() {
1413	my $freeze_guard = cf::freeze_mainloop;	1778	my $files = aio_readdir $UNIQUEDIR
		1779	or return;
1414		1780
1415	warn "enter emergency map save\n";	1781	my @paths;
1416		1782
1417	cf::sync_job {	1783	for (@$files) {
1418	warn "begin emergency map save\n";	1784	utf8::decode $_;
1419	$_->save for values %cf::MAP;	1785	next if /\.pst$/;
		1786	next unless /^$PATH_SEP/o;
		1787
		1788	push @paths, cf::map::normalise $_;
1420	};	1789	}
1421		1790
1422	warn "end emergency map save\n";	1791	\@paths
1423	}	1792	}
1424		1793
1425	package cf;	1794	package cf;
1426		1795
1427	=back	1796	=back
1428		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
1429		1824
1430	=head3 cf::object::player	1825	=head3 cf::object::player
1431		1826
1432	=over 4	1827	=over 4
1433		1828
…		…
1473		1868
1474	=item $player_object->enter_link	1869	=item $player_object->enter_link
1475		1870
1476	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}>).
1477		1872
1478	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
1479	I<MUST> call C<leave_link> as soon as possible, though.	1874	I<MUST> call C<leave_link> as soon as possible, though.
1480		1875
		1876	Will never block.
		1877
1481	=item $player_object->leave_link ($map, $x, $y)	1878	=item $player_object->leave_link ($map, $x, $y)
1482		1879
1483	Moves the player out of the specila link map onto the given map. If the	1880	Moves the player out of the special C<{link}> map onto the specified
1484	map is not valid (or omitted), the player will be moved back to the	1881	map. If the map is not valid (or omitted), the player will be moved back
1485	location he/she was before the call to C<enter_link>, or, if that fails,	1882	to the location he/she was before the call to C<enter_link>, or, if that
1486	to the emergency map position.	1883	fails, to the emergency map position.
1487		1884
1488	Might block.	1885	Might block.
1489		1886
1490	=cut	1887	=cut
		1888
		1889	sub link_map {
		1890	unless ($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	$LINK_MAP
		1897	}
1491		1898
1492	sub cf::object::player::enter_link {	1899	sub cf::object::player::enter_link {
1493	my ($self) = @_;	1900	my ($self) = @_;
1494		1901
1495	$self->deactivate_recursive;	1902	$self->deactivate_recursive;
1496		1903
1497	return if $self->map == $LINK_MAP;	1904	return if UNIVERSAL::isa $self->map, "ext::map_link";
1498		1905
1499	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1500	if $self->map;	1907	if $self->map && $self->map->{path} ne "{link}";
1501		1908
1502	$self->enter_map ($LINK_MAP, 20, 20);	1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1503	}	1910	}
1504		1911
1505	sub cf::object::player::leave_link {	1912	sub cf::object::player::leave_link {
1506	my ($self, $map, $x, $y) = @_;	1913	my ($self, $map, $x, $y) = @_;
		1914
		1915	return unless $self->contr->active;
1507		1916
1508	my $link_pos = delete $self->{_link_pos};	1917	my $link_pos = delete $self->{_link_pos};
1509		1918
1510	unless ($map) {	1919	unless ($map) {
1511	# restore original map position	1920	# restore original map position
…		…
1525	# use -1 or undef as default coordinates, not 0, 0	1934	# use -1 or undef as default coordinates, not 0, 0
1526	($x, $y) = ($map->enter_x, $map->enter_y)	1935	($x, $y) = ($map->enter_x, $map->enter_y)
1527	if $x <=0 && $y <= 0;	1936	if $x <=0 && $y <= 0;
1528		1937
1529	$map->load;	1938	$map->load;
		1939	$map->load_diag;
1530		1940
		1941	return unless $self->contr->active;
1531	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1532	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1533	}	1946	}
1534		1947
1535	cf::player->attach (
1536	on_logout => sub {
1537	my ($pl) = @_;
1538
1539	# abort map switching before logout
1540	if ($pl->ob->{_link_pos}) {
1541	cf::sync_job {
1542	$pl->ob->leave_link
1543	};
1544	}
1545	},
1546	on_login => sub {
1547	my ($pl) = @_;
1548
1549	# try to abort aborted map switching on player login :)
1550	# should happen only on crashes
1551	if ($pl->ob->{_link_pos}) {
1552
1553	$pl->ob->enter_link;
1554	(async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	$pl->ob->reply (undef,
1558	"There was an internal problem at your last logout, "
1559	. "the server will try to bring you to your intended destination in a second.",
1560	cf::NDI_RED);
1561	Coro::Timer::sleep 1;
1562	$pl->ob->leave_link;
1563	})->prio (2);
1564	}
1565	},
1566	);
1567
1568	=item $player_object->goto ($path, $x, $y)	1948	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1569		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
1570	=cut	1955	=cut
		1956
		1957	our $GOTOGEN;
1571		1958
1572	sub cf::object::player::goto {	1959	sub cf::object::player::goto {
1573	my ($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;
1574		1964
1575	$self->enter_link;	1965	$self->enter_link;
1576		1966
1577	(async {	1967	(async {
1578	$path = new cf::path $path;	1968	my $map = eval {
1579
1580	my $map = cf::map::find $path->as_string;	1969	my $map = cf::map::find $path;
		1970
		1971	if ($map) {
1581	$map = $map->customise_for ($self) if $map;	1972	$map = $map->customise_for ($self);
1582		1973	$map = $check->($map) if $check && $map;
1583	# warn "entering ", $map->path, " at ($x, $y)\n"	1974	} else {
1584	# if $map;
1585
1586	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1975	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1976	}
1587		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};
1588	$self->leave_link ($map, $x, $y);	1988	$self->leave_link ($map, $x, $y);
		1989	}
1589	})->prio (1);	1990	})->prio (1);
1590	}	1991	}
1591		1992
1592	=item $player_object->enter_exit ($exit_object)	1993	=item $player_object->enter_exit ($exit_object)
1593		1994
…		…
1595		1996
1596	sub parse_random_map_params {	1997	sub parse_random_map_params {
1597	my ($spec) = @_;	1998	my ($spec) = @_;
1598		1999
1599	my $rmp = { # defaults	2000	my $rmp = { # defaults
1600	xsize => 10,	2001	xsize => (cf::rndm 15, 40),
1601	ysize => 10,	2002	ysize => (cf::rndm 15, 40),
		2003	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2004	#layout => string,
1602	};	2005	};
1603		2006
1604	for (split /\n/, $spec) {	2007	for (split /\n/, $spec) {
1605	my ($k, $v) = split /\s+/, $_, 2;	2008	my ($k, $v) = split /\s+/, $_, 2;
1606		2009
…		…
1610	$rmp	2013	$rmp
1611	}	2014	}
1612		2015
1613	sub prepare_random_map {	2016	sub prepare_random_map {
1614	my ($exit) = @_;	2017	my ($exit) = @_;
		2018
		2019	my $guard = cf::lock_acquire "exit_prepare:$exit";
1615		2020
1616	# all this does is basically replace the /! path by	2021	# all this does is basically replace the /! path by
1617	# a new random map path (?random/...) with a seed	2022	# a new random map path (?random/...) with a seed
1618	# that depends on the exit object	2023	# that depends on the exit object
1619		2024
1620	my $rmp = parse_random_map_params $exit->msg;	2025	my $rmp = parse_random_map_params $exit->msg;
1621		2026
1622	if ($exit->map) {	2027	if ($exit->map) {
1623	$rmp->{region} = $exit->map->region_name;	2028	$rmp->{region} = $exit->region->name;
1624	$rmp->{origin_map} = $exit->map->path;	2029	$rmp->{origin_map} = $exit->map->path;
1625	$rmp->{origin_x} = $exit->x;	2030	$rmp->{origin_x} = $exit->x;
1626	$rmp->{origin_y} = $exit->y;	2031	$rmp->{origin_y} = $exit->y;
1627	}	2032	}
1628		2033
1629	$rmp->{random_seed} ||= $exit->random_seed;	2034	$rmp->{random_seed} ||= $exit->random_seed;
1630		2035
1631	my $data = cf::to_json $rmp;	2036	my $data = cf::to_json $rmp;
1632	my $md5 = Digest::MD5::md5_hex $data;	2037	my $md5 = Digest::MD5::md5_hex $data;
		2038	my $meta = "$RANDOMDIR/$md5.meta";
1633		2039
1634	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) {
1635	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;
1636		2044
1637	$exit->slaying ("?random/$md5");	2045	$exit->slaying ("?random/$md5");
1638	$exit->msg (undef);	2046	$exit->msg (undef);
1639	}	2047	}
1640	}	2048	}
1641		2049
1642	sub cf::object::player::enter_exit {	2050	sub cf::object::player::enter_exit {
1643	my ($self, $exit) = @_;	2051	my ($self, $exit) = @_;
1644		2052
1645	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;
1646		2065
1647	$self->enter_link;	2066	$self->enter_link;
1648		2067
1649	(async {	2068	(async {
1650	$self->deactivate_recursive; # just to be sure	2069	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2070	unless (eval {
1652	prepare_random_map $exit	2071	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1657		2072
1658	1;	2073	1;
1659	}) {	2074	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2075	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "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. "
1662	. "Please report this to the dungeon master",	2077	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2078	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2079
1665	warn "ERROR in enter_exit: $@";	2080	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2081	$self->leave_link;
1667	}	2082	}
1668	})->prio (1);	2083	})->prio (1);
…		…
1681		2096
1682	sub cf::client::send_drawinfo {	2097	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2098	my ($self, $text, $flags) = @_;
1684		2099
1685	utf8::encode $text;	2100	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2101	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2102	}
1688		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	}
1689		2116
1690	=item $success = $client->query ($flags, "text", \&cb)	2117	=item $success = $client->query ($flags, "text", \&cb)
1691		2118
1692	Queues a query to the client, calling the given callback with	2119	Queues a query to the client, calling the given callback with
1693	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>,
…		…
1722	# get handled first	2149	# get handled first
1723	my $queue = delete $ns->{query_queue}	2150	my $queue = delete $ns->{query_queue}
1724	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
1725		2152
1726	(shift @$queue)->[1]->($msg);	2153	(shift @$queue)->[1]->($msg);
		2154	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2155
1728	push @{ $ns->{query_queue} }, @$queue;	2156	push @{ $ns->{query_queue} }, @$queue;
1729		2157
1730	if (@{ $ns->{query_queue} } == @$queue) {	2158	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2159	if (@$queue) {
…		…
1789		2217
1790	# here we export the classes and methods available to script code	2218	# here we export the classes and methods available to script code
1791		2219
1792	=pod	2220	=pod
1793		2221
1794	The following fucntions and emthods are available within a safe environment:	2222	The following functions and methods are available within a safe environment:
1795		2223
1796	cf::object contr pay_amount pay_player map	2224	cf::object contr pay_amount pay_player map
1797	cf::object::player player	2225	cf::object::player player
1798	cf::player peaceful	2226	cf::player peaceful
1799	cf::map trigger	2227	cf::map trigger
…		…
1884	#############################################################################	2312	#############################################################################
1885		2313
1886	=head2 EXTENSION DATABASE SUPPORT	2314	=head2 EXTENSION DATABASE SUPPORT
1887		2315
1888	Crossfire maintains a very simple database for extension use. It can	2316	Crossfire maintains a very simple database for extension use. It can
1889	currently store anything that can be serialised using Storable, which	2317	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1890	excludes objects.	2318	convert to/from binary).
1891		2319
1892	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
1893	using it, it should be unique.	2321	using it, it should be unique.
1894		2322
1895	=over 4	2323	=over 4
1896		2324
1897	=item $hashref = cf::db_get $family
1898
1899	Return a hashref for use by the extension C<$family>, which can be
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902
1903	=item $value = cf::db_get $family => $key	2325	=item $value = cf::db_get $family => $key
1904		2326
1905	Returns a single value from the database	2327	Returns a single value from the database.
1906
1907	=item cf::db_put $family => $hashref
1908
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911		2328
1912	=item cf::db_put $family => $key => $value	2329	=item cf::db_put $family => $key => $value
1913		2330
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you	2331	Stores the given C<$value> in the family.
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924		2332
1925	=cut	2333	=cut
1926		2334
1927	our $DB;	2335	our $DB;
1928		2336
1929	{	2337	sub db_init {
1930	my $path = cf::localdir . "/database.pst";	2338	unless ($DB) {
		2339	$DB = BDB::db_create $DB_ENV;
1931		2340
1932	sub db_load() {	2341	cf::sync_job {
1933	$DB = stat $path ? Storable::retrieve $path : { };	2342	eval {
1934	}	2343	$DB->set_flags (BDB::CHKSUM);
1935		2344
1936	my $pid;	2345	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1937		2346	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1938	sub db_save() {	2347	cf::cleanup "db_open(db): $!" if $!;
1939	waitpid $pid, 0 if $pid;	2348	};
1940	if (0 == ($pid = fork)) {	2349	cf::cleanup "db_open(db): $@" if $@;
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}	2350	};
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	2351	}
		2352	}
1958		2353
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}
1963
1964	sub db_get($;$) {	2354	sub db_get($$) {
1965	@_ >= 2	2355	my $key = "$_[0]/$_[1]";
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969		2356
		2357	cf::sync_job {
		2358	BDB::db_get $DB, undef, $key, my $data;
		2359
		2360	$! ? ()
		2361	: $data
		2362	}
		2363	}
		2364
1970	sub db_put($$;$) {	2365	sub db_put($$$) {
1971	if (@_ >= 3) {	2366	BDB::dbreq_pri 4;
1972	$DB->{$_[0]}{$_[1]} = $_[2];	2367	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1973	} else {	2368	}
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978		2369
1979	cf::global->attach (	2370	=item cf::cache $id => [$paths...], $processversion => $process
1980	prio => 10000,	2371
1981	on_cleanup => sub {	2372	Generic caching function that returns the value of the resource $id,
1982	db_sync;	2373	caching and regenerating as required.
		2374
		2375	This function can block.
		2376
		2377	=cut
		2378
		2379	sub cache {
		2380	my ($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 "$src->[$_]: $!";
1983	},	2402	}
1984	);	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	}
1985	}	2482	}
1986		2483
1987	#############################################################################	2484	#############################################################################
1988	# 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	}
1989		2573
1990	sub cfg_load {	2574	sub cfg_load {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	2575	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	2576	or return;
1993		2577
1994	local $/;	2578	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	2579	*CFG = YAML::Syck::Load <$fh>;
1996		2580
…		…
1999	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2583	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2000	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2584	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2001		2585
2002	if (exists $CFG{mlockall}) {	2586	if (exists $CFG{mlockall}) {
2003	eval {	2587	eval {
2004	$CFG{mlockall} ? &mlockall : &munlockall	2588	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2005	and die "WARNING: m(un)lockall failed: $!\n";	2589	and die "WARNING: m(un)lockall failed: $!\n";
2006	};	2590	};
2007	warn $@ if $@;	2591	warn $@ if $@;
2008	}	2592	}
2009	}	2593	}
2010		2594
2011	sub main {	2595	sub main {
2012	# we must not ever block the main coroutine	2596	# we must not ever block the main coroutine
2013	local $Coro::idle = sub {	2597	local $Coro::idle = sub {
2014	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 {
2015	async { Event::one_event };	2600	Event::one_event;
		2601	})->prio (Coro::PRIO_MAX);
2016	};	2602	};
2017		2603
2018	cfg_load;	2604	cfg_load;
2019	db_load;	2605	db_init;
2020	load_extensions;	2606	load_extensions;
		2607
		2608	$TICK_WATCHER->start;
2021	Event::loop;	2609	Event::loop;
2022	}	2610	}
2023		2611
2024	#############################################################################	2612	#############################################################################
2025	# initialisation	2613	# initialisation and cleanup
2026		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
2027	sub reload() {	2670	sub do_reload_perl() {
2028	# can/must only be called in main	2671	# can/must only be called in main
2029	if ($Coro::current != $Coro::main) {	2672	if ($Coro::current != $Coro::main) {
2030	warn "can only reload from main coroutine\n";	2673	warn "can only reload from main coroutine";
2031	return;	2674	return;
2032	}	2675	}
2033		2676
2034	warn "reloading...";	2677	warn "reloading...";
2035		2678
2036	my $guard = freeze_mainloop;	2679	warn "entering sync_job";
		2680
		2681	cf::sync_job {
		2682	cf::write_runtime; # external watchdog should not bark
2037	cf::emergency_save;	2683	cf::emergency_save;
		2684	cf::write_runtime; # external watchdog should not bark
2038		2685
2039	eval {	2686	warn "syncing database to disk";
		2687	BDB::db_env_txn_checkpoint $DB_ENV;
		2688
2040	# 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
2041		2690
2042	# cancel all watchers	2691	warn "cancelling all WF_AUTOCANCEL watchers";
2043	for (Event::all_watchers) {	2692	for (Event::all_watchers) {
2044	$_->cancel if $_->data & WF_AUTOCANCEL;	2693	$_->cancel if $_->data & WF_AUTOCANCEL;
2045	}	2694	}
2046		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
2047	# cancel all extension coros	2707	warn "cancelling all extension coros";
2048	$_->cancel for values %EXT_CORO;	2708	$_->cancel for values %EXT_CORO;
2049	%EXT_CORO = ();	2709	%EXT_CORO = ();
2050		2710
2051	# unload all extensions	2711	warn "removing commands";
2052	for (@exts) {	2712	%COMMAND = ();
		2713
		2714	warn "removing ext commands";
		2715	%EXTCMD = ();
		2716
		2717	warn "unloading/nuking all extensions";
		2718	for my $pkg (@EXTS) {
2053	warn "unloading <$_>";	2719	warn "... unloading $pkg";
2054	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: $@";
2055	}	2726	}
2056		2727
		2728	warn "... nuking $pkg";
		2729	Symbol::delete_package $pkg;
		2730	}
		2731
2057	# unload all modules loaded from $LIBDIR	2732	warn "unloading all perl modules loaded from $LIBDIR";
2058	while (my ($k, $v) = each %INC) {	2733	while (my ($k, $v) = each %INC) {
2059	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2734	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2060		2735
2061	warn "removing <$k>";	2736	warn "... unloading $k";
2062	delete $INC{$k};	2737	delete $INC{$k};
2063		2738
2064	$k =~ s/\.pm$//;	2739	$k =~ s/\.pm$//;
2065	$k =~ s/\//::/g;	2740	$k =~ s/\//::/g;
2066		2741
…		…
2069	}	2744	}
2070		2745
2071	Symbol::delete_package $k;	2746	Symbol::delete_package $k;
2072	}	2747	}
2073		2748
2074	# sync database to disk
2075	cf::db_sync;
2076	IO::AIO::flush;
2077
2078	# get rid of safe::, as good as possible	2749	warn "getting rid of safe::, as good as possible";
2079	Symbol::delete_package "safe::$_"	2750	Symbol::delete_package "safe::$_"
2080	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);
2081		2752
2082	# remove register_script_function callbacks
2083	# TODO
2084
2085	# unload cf.pm "a bit"	2753	warn "unloading cf.pm \"a bit\"";
2086	delete $INC{"cf.pm"};	2754	delete $INC{"cf.pm"};
		2755	delete $INC{"cf/pod.pm"};
2087		2756
2088	# don't, removes xs symbols, too,	2757	# don't, removes xs symbols, too,
2089	# and global variables created in xs	2758	# and global variables created in xs
2090	#Symbol::delete_package __PACKAGE__;	2759	#Symbol::delete_package __PACKAGE__;
2091		2760
2092	# reload cf.pm	2761	warn "unload completed, starting to reload now";
		2762
2093	warn "reloading cf.pm";	2763	warn "reloading cf.pm";
2094	require cf;	2764	require cf;
2095	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2765	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2096		2766
2097	# load config and database again	2767	warn "loading config and database again";
2098	cf::cfg_load;	2768	cf::cfg_load;
2099	cf::db_load;
2100		2769
2101	# load extensions
2102	warn "load extensions";	2770	warn "loading extensions";
2103	cf::load_extensions;	2771	cf::load_extensions;
2104		2772
2105	# reattach attachments to objects	2773	warn "reattaching attachments to objects/players";
2106	warn "reattach";	2774	_global_reattach; # objects, sockets
2107	_global_reattach;	2775	warn "reattaching attachments to maps";
2108	};	2776	reattach $_ for values %MAP;
		2777	warn "reattaching attachments to players";
		2778	reattach $_ for values %PLAYER;
2109		2779
2110	if ($@) {	2780	warn "leaving sync_job";
		2781
		2782	1
		2783	} or do {
2111	warn $@;	2784	warn $@;
2112	warn "error while reloading, exiting.";	2785	warn "error while reloading, exiting.";
2113	exit 1;	2786	exit 1;
2114	}	2787	};
2115		2788
2116	warn "reloaded successfully";	2789	warn "reloaded";
2117	};	2790	};
2118		2791
2119	#############################################################################	2792	our $RELOAD_WATCHER; # used only during reload
2120		2793
2121	unless ($LINK_MAP) {	2794	sub reload_perl() {
2122	$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.
2123		2797
2124	$LINK_MAP->width (41);	2798	$RELOAD_WATCHER ||= Event->timer (
2125	$LINK_MAP->height (41);	2799	reentrant => 0,
2126	$LINK_MAP->alloc;
2127	$LINK_MAP->path ("{link}");
2128	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2129	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2130
2131	# dirty hack because... archetypes are not yet loaded
2132	Event->timer (
2133	after => 2,	2800	after => 0,
		2801	data => WF_AUTOCANCEL,
2134	cb => sub {	2802	cb => sub {
2135	$_[0]->w->cancel;	2803	do_reload_perl;
2136		2804	undef $RELOAD_WATCHER;
2137	# provide some exits "home"
2138	my $exit = cf::object::new "exit";
2139
2140	$exit->slaying ($EMERGENCY_POSITION->[0]);
2141	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2142	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2143
2144	$LINK_MAP->insert ($exit->clone, 19, 19);
2145	$LINK_MAP->insert ($exit->clone, 19, 20);
2146	$LINK_MAP->insert ($exit->clone, 19, 21);
2147	$LINK_MAP->insert ($exit->clone, 20, 19);
2148	$LINK_MAP->insert ($exit->clone, 20, 21);
2149	$LINK_MAP->insert ($exit->clone, 21, 19);
2150	$LINK_MAP->insert ($exit->clone, 21, 20);
2151	$LINK_MAP->insert ($exit->clone, 21, 21);
2152
2153	$exit->destroy;
2154	});	2805	},
2155		2806	);
2156	$LINK_MAP->{deny_save} = 1;
2157	$LINK_MAP->{deny_reset} = 1;
2158
2159	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2160	}	2807	}
2161
2162	register "<global>", __PACKAGE__;
2163		2808
2164	register_command "reload" => sub {	2809	register_command "reload" => sub {
2165	my ($who, $arg) = @_;	2810	my ($who, $arg) = @_;
2166		2811
2167	if ($who->flag (FLAG_WIZ)) {	2812	if ($who->flag (FLAG_WIZ)) {
2168	$who->message ("start of reload.");
2169	reload;
2170	$who->message ("end of reload.");	2813	$who->message ("reloading server.");
		2814	async { reload_perl };
2171	}	2815	}
2172	};	2816	};
2173		2817
2174	unshift @INC, $LIBDIR;	2818	unshift @INC, $LIBDIR;
2175		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;
2176	$TICK_WATCHER = Event->timer (	2845	$TICK_WATCHER = Event->timer (
2177	reentrant => 0,	2846	reentrant => 0,
		2847	parked => 1,
2178	prio => 0,	2848	prio => 0,
2179	at => $NEXT_TICK || $TICK,	2849	at => $NEXT_TICK || $TICK,
2180	data => WF_AUTOCANCEL,	2850	data => WF_AUTOCANCEL,
2181	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
2182	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
2183	$RUNTIME += $TICK;	2885	$RUNTIME += $TICK;
2184	$NEXT_TICK += $TICK;	2886	$NEXT_TICK += $TICK;
2185		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
2186	# 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
2187	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2909	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2188		2910
2189	$TICK_WATCHER->at ($NEXT_TICK);	2911	$TICK_WATCHER->at ($NEXT_TICK);
2190	$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
2191	},	2920	},
2192	);	2921	);
2193		2922
		2923	{
2194	IO::AIO::max_poll_time $TICK * 0.2;	2924	BDB::max_poll_time $TICK * 0.1;
2195		2925	$BDB_POLL_WATCHER = Event->io (
2196	Event->io (	2926	reentrant => 0,
2197	fd => IO::AIO::poll_fileno,	2927	fd => BDB::poll_fileno,
2198	poll => 'r',	2928	poll => 'r',
2199	prio => 5,	2929	prio => 0,
2200	data => WF_AUTOCANCEL,
2201	cb => \&IO::AIO::poll_cb,
2202	);
2203
2204	Event->timer (
2205	data => WF_AUTOCANCEL,	2930	data => WF_AUTOCANCEL,
2206	after => 0,	2931	cb => \&BDB::poll_cb,
2207	interval => 10,	2932	);
2208	cb => sub {	2933	BDB::min_parallel 8;
2209	(Coro::unblock_sub {	2934
2210	write_runtime	2935	BDB::set_sync_prepare {
2211	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 $@;
2212	})->();	2969	};
2213	},	2970	}
2214	);	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;
2215		3028
2216	END { cf::emergency_save }	3029	END { cf::emergency_save }
2217		3030
2218	1	3031	1
2219		3032

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