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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 2007 UTC vs.
Revision 1.264 by root, Sun May 6 05:44:48 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 (2); # 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 $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		94
58	binmode STDOUT;	95	binmode STDOUT;
59	binmode STDERR;	96	binmode STDERR;
60		97
61	# read virtual server time, if available	98	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
66	}	103	}
67		104
68	mkdir cf::localdir;	105	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		107
74	# a special map that is always available	108	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		109
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	110	sub cf::map::normalise;
78		111
79	#############################################################################	112	#############################################################################
80		113
81	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
82		115
…		…
89	=item $cf::RUNTIME	122	=item $cf::RUNTIME
90		123
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	124	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	125	every server tick.
93		126
94	=item $cf::LIBDIR	127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		130
96	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		133	unique-items directory, player file directory, random maps directory and
		134	database environment.
98		135
99	=item $cf::NOW	136	=item $cf::NOW
100		137
101	The time of the last (current) server tick.	138	The time of the last (current) server tick.
102		139
…		…
106		143
107	=item %cf::CFG	144	=item %cf::CFG
108		145
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	147	from wherever your confdir points to.
		148
		149	=item cf::wait_for_tick, cf::wait_for_tick_begin
		150
		151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		152	returns directly I<after> the tick processing (and consequently, can only wake one process
		153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		154
112	=back	155	=back
113		156
114	=cut	157	=cut
115		158
116	BEGIN {	159	BEGIN {
117	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	161	my $msg = join "", @_;
119	utf8::encode $msg;
120		162
121	$msg .= "\n"	163	$msg .= "\n"
122	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
123		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
125	};	170	};
126	}	171	}
127		172
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		192
148	$Event::DIED = sub {	193	$Event::DIED = sub {
149	warn "error in event callback: @_";	194	warn "error in event callback: @_";
150	};	195	};
151		196
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
157		198
158	=over 4	199	=over 4
159		200
160	=cut	201	=item dumpval $ref
161		202
		203	=cut
		204
		205	sub dumpval {
		206	eval {
		207	local $SIG{__DIE__};
		208	my $d;
		209	if (1) {
		210	$d = new Data::Dumper([$_[0]], ["*var"]);
		211	$d->Terse(1);
		212	$d->Indent(2);
		213	$d->Quotekeys(0);
		214	$d->Useqq(1);
		215	#$d->Bless(...);
		216	$d->Seen($_[1]) if @_ > 1;
		217	$d = $d->Dump();
		218	}
		219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		220	$d
		221	} || "[unable to dump $_[0]: '$@']";
		222	}
		223
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		225
164	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
165		227
166	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
167		229
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
176		231
177	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
178		233
179	=cut	234	=item cf::lock_wait $string
180		235
181	sub to_json($) {	236	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	237
183	JSON::Syck::Dump $_[0]	238	=item my $lock = cf::lock_acquire $string
		239
		240	Wait until the given lock is available and then acquires it and returns
		241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		242	for example when the coroutine gets canceled), the lock is automatically
		243	returned.
		244
		245	Lock names should begin with a unique identifier (for example, cf::map::find
		246	uses map_find and cf::map::load uses map_load).
		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
		251
		252	=cut
		253
		254	our %LOCK;
		255
		256	sub lock_wait($) {
		257	my ($key) = @_;
		258
		259	# wait for lock, if any
		260	while ($LOCK{$key}) {
		261	push @{ $LOCK{$key} }, $Coro::current;
		262	Coro::schedule;
		263	}
184	}	264	}
		265
		266	sub lock_acquire($) {
		267	my ($key) = @_;
		268
		269	# wait, to be sure we are not locked
		270	lock_wait $key;
		271
		272	$LOCK{$key} = [];
		273
		274	Coro::guard {
		275	# wake up all waiters, to be on the safe side
		276	$_->ready for @{ delete $LOCK{$key} };
		277	}
		278	}
		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
		286	sub freeze_mainloop {
		287	return unless $TICK_WATCHER->is_active;
		288
		289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
		292	$TICK_WATCHER->stop;
		293	$guard
		294	}
		295
		296	=item cf::async { BLOCK }
		297
		298	Currently the same as Coro::async_pool, meaning you cannot use
		299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
		301
		302	=cut
		303
		304	BEGIN { *async = \&Coro::async_pool }
185		305
186	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
187		307
188	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	309	always able to handle events or runnable, as crossfire+ is only partly
…		…
203	# this is the main coro, too bad, we have to block	323	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	324	# till the operation succeeds, freezing the server :/
205		325
206	# TODO: use suspend/resume instead	326	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	327	# (but this is cancel-safe)
208	local $FREEZE = 1;	328	my $freeze_guard = freeze_mainloop;
209		329
210	my $busy = 1;	330	my $busy = 1;
211	my @res;	331	my @res;
212		332
213	(Coro::async {	333	(async {
214	@res = eval { $job->() };	334	@res = eval { $job->() };
215	warn $@ if $@;	335	warn $@ if $@;
216	undef $busy;	336	undef $busy;
217	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
218		338
219	while ($busy) {	339	while ($busy) {
220	Coro::cede_notself;	340	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	341	}
223		342
224	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
225	} else {	344	} else {
226	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
227		346
228	$job->()	347	$job->()
229	}	348	}
230	}	349	}
231		350
232	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
233		352
234	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
236		355
237	=cut	356	=cut
238		357
239	sub coro(&) {	358	sub async_ext(&) {
240	my $cb = shift;	359	my $cb = shift;
241		360
242	my $coro; $coro = async {	361	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		362
249	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
251	});	365	});
252	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
253		367
254	$coro	368	$coro
255	}	369	}
256		370
257	sub write_runtime {	371	sub write_runtime {
258	my $runtime = cf::localdir . "/runtime";	372	my $runtime = "$LOCALDIR/runtime";
259		373
		374	# first touch the runtime file to show we are still running:
		375	# the fsync below can take a very very long time.
		376
		377	warn "touching runtime...\n";#d#
		378	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		379	utime undef, undef, $fh;
		380	}
		381
		382	my $guard = cf::lock_acquire "write_runtime";
		383
		384	warn "starting to write runtime...\n";#d#
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	385	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	386	or return;
262		387
		388	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	389	# 10 is the runtime save interval, for a monotonic clock
		390	# 60 allows for the watchdog to kill the server.
		391
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	392	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	393	and return;
266		394
		395	# always fsync - this file is important
267	aio_fsync $fh	396	aio_fsync $fh
268	and return;	397	and return;
269		398
		399	# touch it again to show we are up-to-date
		400	utime undef, undef, $fh;
		401
270	close $fh	402	close $fh
271	or return;	403	or return;
272		404
273	aio_rename "$runtime~", $runtime	405	aio_rename "$runtime~", $runtime
274	and return;	406	and return;
275		407
		408	warn "... done writing runtime.\n";#d#
		409
276	1	410	1
277	}	411	}
278		412
		413	=item cf::datalog type => key => value, ...
		414
		415	Log a datalog packet of the given type with the given key-value pairs.
		416
		417	=cut
		418
		419	sub datalog($@) {
		420	my ($type, %kv) = @_;
		421	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		422	}
		423
279	=back	424	=back
280		425
281	=cut	426	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392		427
393	#############################################################################	428	#############################################################################
394		429
395	=head2 ATTACHABLE OBJECTS	430	=head2 ATTACHABLE OBJECTS
396		431
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	557	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	558	our @CB_MAP = ();
524		559
525	my %attachment;	560	my %attachment;
526		561
		562	sub cf::attachable::thawer_merge {
		563	# simply override everything except _meta
		564	local $_[0]{_meta};
		565	%{$_[0]} = %{$_[1]};
		566	}
		567
527	sub _attach_cb($$$$) {	568	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	569	my ($registry, $event, $prio, $cb) = @_;
529		570
530	use sort 'stable';	571	use sort 'stable';
531		572
…		…
702	# object support	743	# object support
703		744
704	sub reattach {	745	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	746	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	747	my ($obj) = @_;
		748
		749	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		750
708	my $registry = $obj->registry;	751	my $registry = $obj->registry;
709		752
710	@$registry = ();	753	@$registry = ();
711		754
…		…
758	$filename, length $$rdata, scalar @$objs;	801	$filename, length $$rdata, scalar @$objs;
759		802
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	803	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	804	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	805	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	806	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	807	close $fh;
765		808
766	if (@$objs) {	809	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	810	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	811	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	812	my $data = Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	813	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	814	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	815	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	816	aio_rename "$filename.pst~", "$filename.pst";
774	}	817	}
775	} else {	818	} else {
776	aio_unlink "$filename.pst";	819	aio_unlink "$filename.pst";
…		…
804	or return;	847	or return;
805		848
806	unless (aio_stat "$filename.pst") {	849	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	850	(aio_load "$filename.pst", $av) >= 0
808	or return;	851	or return;
809	$av = eval { (Storable::thaw <$av>)->{objs} };	852	$av = eval { (Storable::thaw $av)->{objs} };
810	}	853	}
811		854
		855	warn sprintf "loading %s (%d)\n",
		856	$filename, length $data, scalar @{$av || []};#d#
812	return ($data, $av);	857	return ($data, $av);
813	}	858	}
814		859
815	#############################################################################	860	#############################################################################
816	# command handling &c	861	# command handling &c
…		…
841	=cut	886	=cut
842		887
843	sub register_extcmd {	888	sub register_extcmd {
844	my ($name, $cb) = @_;	889	my ($name, $cb) = @_;
845		890
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	891	$EXTCMD{$name} = $cb;
850	}	892	}
851		893
852	cf::player->attach (	894	cf::player->attach (
853	on_command => sub {	895	on_command => sub {
854	my ($pl, $name, $params) = @_;	896	my ($pl, $name, $params) = @_;
…		…
867		909
868	my $msg = eval { from_json $buf };	910	my $msg = eval { from_json $buf };
869		911
870	if (ref $msg) {	912	if (ref $msg) {
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	913	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	914	if (my %reply = $cb->($pl, $msg)) {
873	$pl->ext_reply ($msg->{msgid}, %reply);	915	$pl->ext_reply ($msg->{msgid}, %reply);
874	}	916	}
875	}	917	}
876	} else {	918	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	919	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
879		921
880	cf::override;	922	cf::override;
881	},	923	},
882	);	924	);
883		925
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	926	sub load_extension {
891	my ($path) = @_;	927	my ($path) = @_;
892		928
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	929	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
894	my $base = $1;	930	my $base = $1;
895	my $pkg = $1;	931	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;	932	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";	933	$pkg = "ext::$pkg";
898		934
899	warn "loading '$path' into '$pkg'\n";	935	warn "... loading '$path' into '$pkg'\n";
900		936
901	open my $fh, "<:utf8", $path	937	open my $fh, "<:utf8", $path
902	or die "$path: $!";	938	or die "$path: $!";
903		939
904	my $source =	940	my $source =
905	"package $pkg; use strict; use utf8;\n"	941	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"	942	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })	943	. (do { local $/; <$fh> })
908	. "\n};\n1";	944	. "\n};\n1";
909		945
910	eval $source	946	unless (eval $source) {
911	or die $@ ? "$path: $@\n"	947	my $msg = $@ ? "$path: $@\n"
912	: "extension disabled.\n";	948	: "extension disabled.\n";
913		949	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
914	push @exts, $pkg;	950	warn $@;
915	$ext_pkg{$base} = $pkg;	951	warn "mandatory extension failed to load, exiting.\n";
916		952	exit 1;
917	# no strict 'refs';	953	}
918	# @{"$pkg\::ISA"} = ext::;	954	die $@;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }	955	}
933		956
934	# remove commands	957	push @EXTS, $pkg;
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}
943	}
944
945	# remove extcmds
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}	958	}
959		959
960	sub load_extensions {	960	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {	961	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	962	next unless -r $ext;
…		…
966	} or warn "$ext not loaded: $@";	966	} or warn "$ext not loaded: $@";
967	}	967	}
968	}	968	}
969		969
970	#############################################################################	970	#############################################################################
971	# load/save/clean perl data associated with a map
972
973	*cf::mapsupport::on_clean = sub {
974	my ($map) = @_;
975
976	my $path = $map->tmpname;
977	defined $path or return;
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}
990
991	# TODO: compatibility cruft, remove when no longer needed
992	cf::player->attach (
993	on_load => sub {
994	my ($pl, $path) = @_;
995
996	for my $o (all_objects $pl->ob) {
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
998	$o->set_ob_key_value ("_perl_data");
999
1000	%$o = %{ Storable::thaw pack "H*", $value };
1001	}
1002	}
1003	},
1004	);
1005
1006	#############################################################################
1007		971
1008	=head2 CORE EXTENSIONS	972	=head2 CORE EXTENSIONS
1009		973
1010	Functions and methods that extend core crossfire objects.	974	Functions and methods that extend core crossfire objects.
1011		975
		976	=cut
		977
		978	package cf::player;
		979
		980	use Coro::AIO;
		981
1012	=head3 cf::player	982	=head3 cf::player
1013		983
1014	=over 4	984	=over 4
1015		985
1016	=item cf::player::exists $login	986	=item cf::player::find $login
1017		987
1018	Returns true when the given account exists.	988	Returns the given player object, loading it if necessary (might block).
1019		989
1020	=cut	990	=cut
1021		991
1022	sub cf::player::exists($) {	992	sub playerdir($) {
1023	cf::player::find $_[0]	993	"$PLAYERDIR/"
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	994	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1025	}	995	}
1026		996
		997	sub path($) {
		998	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		999
		1000	(playerdir $login) . "/playerdata"
		1001	}
		1002
		1003	sub find_active($) {
		1004	$cf::PLAYER{$_[0]}
		1005	and $cf::PLAYER{$_[0]}->active
		1006	and $cf::PLAYER{$_[0]}
		1007	}
		1008
		1009	sub exists($) {
		1010	my ($login) = @_;
		1011
		1012	$cf::PLAYER{$login}
		1013	or cf::sync_job { !aio_stat path $login }
		1014	}
		1015
		1016	sub find($) {
		1017	return $cf::PLAYER{$_[0]} || do {
		1018	my $login = $_[0];
		1019
		1020	my $guard = cf::lock_acquire "user_find:$login";
		1021
		1022	$cf::PLAYER{$_[0]} || do {
		1023	# rename old playerfiles to new ones
		1024	#TODO: remove when no longer required
		1025	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1026	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1027	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1028	aio_unlink +(playerdir $login) . "/$login.pl";
		1029
		1030	my $pl = load_pl path $login
		1031	or return;
		1032	$cf::PLAYER{$login} = $pl
		1033	}
		1034	}
		1035	}
		1036
		1037	sub save($) {
		1038	my ($pl) = @_;
		1039
		1040	return if $pl->{deny_save};
		1041
		1042	my $path = path $pl;
		1043	my $guard = cf::lock_acquire "user_save:$path";
		1044
		1045	return if $pl->{deny_save};
		1046
		1047	aio_mkdir playerdir $pl, 0770;
		1048	$pl->{last_save} = $cf::RUNTIME;
		1049
		1050	$pl->save_pl ($path);
		1051	Coro::cede;
		1052	}
		1053
		1054	sub new($) {
		1055	my ($login) = @_;
		1056
		1057	my $self = create;
		1058
		1059	$self->ob->name ($login);
		1060	$self->{deny_save} = 1;
		1061
		1062	$cf::PLAYER{$login} = $self;
		1063
		1064	$self
		1065	}
		1066
		1067	=item $pl->quit_character
		1068
		1069	Nukes the player without looking back. If logged in, the connection will
		1070	be destroyed. May block for a long time.
		1071
		1072	=cut
		1073
		1074	sub quit_character {
		1075	my ($pl) = @_;
		1076
		1077	my $name = $pl->ob->name;
		1078
		1079	$pl->{deny_save} = 1;
		1080	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1081
		1082	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1083	$pl->deactivate;
		1084	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1085	$pl->ns->destroy if $pl->ns;
		1086
		1087	my $path = playerdir $pl;
		1088	my $temp = "$path~$cf::RUNTIME~deleting~";
		1089	aio_rename $path, $temp;
		1090	delete $cf::PLAYER{$pl->ob->name};
		1091	$pl->destroy;
		1092
		1093	my $prefix = qr<^~\Q$name\E/>;
		1094
		1095	# nuke player maps
		1096	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1097
		1098	IO::AIO::aio_rmtree $temp;
		1099	}
		1100
		1101	=item $pl->kick
		1102
		1103	Kicks a player out of the game. This destroys the connection.
		1104
		1105	=cut
		1106
		1107	sub kick {
		1108	my ($pl, $kicker) = @_;
		1109
		1110	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1111	$pl->killer ("kicked");
		1112	$pl->ns->destroy;
		1113	}
		1114
		1115	=item cf::player::list_logins
		1116
		1117	Returns am arrayref of all valid playernames in the system, can take a
		1118	while and may block, so not sync_job-capable, ever.
		1119
		1120	=cut
		1121
		1122	sub list_logins {
		1123	my $dirs = aio_readdir $PLAYERDIR
		1124	or return [];
		1125
		1126	my @logins;
		1127
		1128	for my $login (@$dirs) {
		1129	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1130	aio_read $fh, 0, 512, my $buf, 0 or next;
		1131	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1132
		1133	utf8::decode $login;
		1134	push @logins, $login;
		1135	}
		1136
		1137	\@logins
		1138	}
		1139
		1140	=item $player->maps
		1141
		1142	Returns an arrayref of map paths that are private for this
		1143	player. May block.
		1144
		1145	=cut
		1146
		1147	sub maps($) {
		1148	my ($pl) = @_;
		1149
		1150	$pl = ref $pl ? $pl->ob->name : $pl;
		1151
		1152	my $files = aio_readdir playerdir $pl
		1153	or return;
		1154
		1155	my @paths;
		1156
		1157	for (@$files) {
		1158	utf8::decode $_;
		1159	next if /\.(?:pl|pst)$/;
		1160	next unless /^$PATH_SEP/o;
		1161
		1162	push @paths, cf::map::normalise "~$pl/$_";
		1163	}
		1164
		1165	\@paths
		1166	}
		1167
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1168	=item $player->ext_reply ($msgid, %msg)
1028		1169
1029	Sends an ext reply to the player.	1170	Sends an ext reply to the player.
1030		1171
1031	=cut	1172	=cut
1032		1173
1033	sub cf::player::ext_reply($$$%) {	1174	sub ext_reply($$%) {
1034	my ($self, $id, %msg) = @_;	1175	my ($self, $id, %msg) = @_;
1035		1176
1036	$msg{msgid} = $id;	1177	$msg{msgid} = $id;
1037		1178
1038	$self->send ("ext " . to_json \%msg);	1179	$self->send ("ext " . cf::to_json \%msg);
		1180	}
		1181
		1182	=item $player->ext_event ($type, %msg)
		1183
		1184	Sends an ext event to the client.
		1185
		1186	=cut
		1187
		1188	sub ext_event($$%) {
		1189	my ($self, $type, %msg) = @_;
		1190
		1191	$self->ns->ext_event ($type, %msg);
		1192	}
		1193
		1194	=head3 cf::region
		1195
		1196	=over 4
		1197
		1198	=cut
		1199
		1200	package cf::region;
		1201
		1202	=item cf::region::find_by_path $path
		1203
		1204	Tries to decuce the probable region for a map knowing only its path.
		1205
		1206	=cut
		1207
		1208	sub find_by_path($) {
		1209	my ($path) = @_;
		1210
		1211	my ($match, $specificity);
		1212
		1213	for my $region (list) {
		1214	if ($region->match && $path =~ $region->match) {
		1215	($match, $specificity) = ($region, $region->specificity)
		1216	if $region->specificity > $specificity;
		1217	}
		1218	}
		1219
		1220	$match
1039	}	1221	}
1040		1222
1041	=back	1223	=back
1042
1043		1224
1044	=head3 cf::map	1225	=head3 cf::map
1045		1226
1046	=over 4	1227	=over 4
1047		1228
…		…
1050	package cf::map;	1231	package cf::map;
1051		1232
1052	use Fcntl;	1233	use Fcntl;
1053	use Coro::AIO;	1234	use Coro::AIO;
1054		1235
		1236	use overload
		1237	'""' => \&as_string,
		1238	fallback => 1;
		1239
1055	our $MAX_RESET = 7200;	1240	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1241	our $DEFAULT_RESET = 3000;
1057		1242
1058	sub generate_random_map {	1243	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1244	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1245	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1246	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1247	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1248	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1249	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1250	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1251	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1252	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1253	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1254	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1255	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1256	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1257	(cf::region::find $rmp->{region}), $rmp->{custom}
		1258	)
		1259	}
		1260
		1261	=item cf::map->register ($regex, $prio)
		1262
		1263	Register a handler for the map path matching the given regex at the
		1264	givne priority (higher is better, built-in handlers have priority 0, the
		1265	default).
		1266
		1267	=cut
		1268
		1269	sub register {
		1270	my (undef, $regex, $prio) = @_;
		1271	my $pkg = caller;
		1272
		1273	no strict;
		1274	push @{"$pkg\::ISA"}, __PACKAGE__;
		1275
		1276	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1277	}
		1278
		1279	# also paths starting with '/'
		1280	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1281
		1282	sub thawer_merge {
		1283	my ($self, $merge) = @_;
		1284
		1285	# we have to keep some variables in memory intact
		1286	local $self->{path};
		1287	local $self->{load_path};
		1288	local $self->{deny_save};
		1289	local $self->{deny_reset};
		1290
		1291	$self->SUPER::thawer_merge ($merge);
		1292	}
		1293
		1294	sub normalise {
		1295	my ($path, $base) = @_;
		1296
		1297	$path = "$path"; # make sure its a string
		1298
		1299	$path =~ s/\.map$//;
		1300
		1301	# map plan:
		1302	#
		1303	# /! non-realised random map exit (special hack!)
		1304	# {... are special paths that are not being touched
		1305	# ?xxx/... are special absolute paths
		1306	# ?random/... random maps
		1307	# /... normal maps
		1308	# ~user/... per-player map of a specific user
		1309
		1310	$path =~ s/$PATH_SEP/\//go;
		1311
		1312	# treat it as relative path if it starts with
		1313	# something that looks reasonable
		1314	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1315	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1316
		1317	$base =~ s{[^/]+/?$}{};
		1318	$path = "$base/$path";
		1319	}
		1320
		1321	for ($path) {
		1322	redo if s{//}{/};
		1323	redo if s{/\.?/}{/};
		1324	redo if s{/[^/]+/\.\./}{/};
		1325	}
		1326
		1327	$path
		1328	}
		1329
		1330	sub new_from_path {
		1331	my (undef, $path, $base) = @_;
		1332
		1333	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1334
		1335	$path = normalise $path, $base;
		1336
		1337	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1338	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1339	my $self = bless cf::map::new, $pkg;
		1340	$self->{path} = $path; $self->path ($path);
		1341	$self->init; # pass $1 etc.
		1342	return $self;
		1343	}
		1344	}
		1345
		1346	Carp::carp "unable to resolve path '$path' (base '$base').";
		1347	()
		1348	}
		1349
		1350	sub init {
		1351	my ($self) = @_;
		1352
		1353	$self
		1354	}
		1355
		1356	sub as_string {
		1357	my ($self) = @_;
		1358
		1359	"$self->{path}"
		1360	}
		1361
		1362	# the displayed name, this is a one way mapping
		1363	sub visible_name {
		1364	&as_string
		1365	}
		1366
		1367	# the original (read-only) location
		1368	sub load_path {
		1369	my ($self) = @_;
		1370
		1371	"$MAPDIR/$self->{path}.map"
		1372	}
		1373
		1374	# the temporary/swap location
		1375	sub save_path {
		1376	my ($self) = @_;
		1377
		1378	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1379	"$TMPDIR/$path.map"
		1380	}
		1381
		1382	# the unique path, undef == no special unique path
		1383	sub uniq_path {
		1384	my ($self) = @_;
		1385
		1386	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1387	"$UNIQUEDIR/$path"
1075	}	1388	}
1076		1389
1077	# and all this just because we cannot iterate over	1390	# and all this just because we cannot iterate over
1078	# all maps in C++...	1391	# all maps in C++...
1079	sub change_all_map_light {	1392	sub change_all_map_light {
1080	my ($change) = @_;	1393	my ($change) = @_;
1081		1394
1082	$_->change_map_light ($change) for values %cf::MAP;	1395	$_->change_map_light ($change)
		1396	for grep $_->outdoor, values %cf::MAP;
1083	}	1397	}
1084		1398
		1399	sub unlink_save {
		1400	my ($self) = @_;
		1401
		1402	utf8::encode (my $save = $self->save_path);
		1403	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1404	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1405	}
		1406
1085	sub try_load_header($) {	1407	sub load_header_from($) {
1086	my ($path) = @_;	1408	my ($self, $path) = @_;
1087		1409
1088	utf8::encode $path;	1410	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1411	#aio_open $path, O_RDONLY, 0
		1412	# or return;
		1413
		1414	$self->_load_header ($path)
1090	or return;	1415	or return;
1091		1416
1092	my $map = cf::map::new	1417	$self->{load_path} = $path;
		1418
		1419	1
		1420	}
		1421
		1422	sub load_header_orig {
		1423	my ($self) = @_;
		1424
		1425	$self->load_header_from ($self->load_path)
		1426	}
		1427
		1428	sub load_header_temp {
		1429	my ($self) = @_;
		1430
		1431	$self->load_header_from ($self->save_path)
		1432	}
		1433
		1434	sub prepare_temp {
		1435	my ($self) = @_;
		1436
		1437	$self->last_access ((delete $self->{last_access})
		1438	|| $cf::RUNTIME); #d#
		1439	# safety
		1440	$self->{instantiate_time} = $cf::RUNTIME
		1441	if $self->{instantiate_time} > $cf::RUNTIME;
		1442	}
		1443
		1444	sub prepare_orig {
		1445	my ($self) = @_;
		1446
		1447	$self->{load_original} = 1;
		1448	$self->{instantiate_time} = $cf::RUNTIME;
		1449	$self->last_access ($cf::RUNTIME);
		1450	$self->instantiate;
		1451	}
		1452
		1453	sub load_header {
		1454	my ($self) = @_;
		1455
		1456	if ($self->load_header_temp) {
		1457	$self->prepare_temp;
		1458	} else {
		1459	$self->load_header_orig
1093	or return;	1460	or return;
		1461	$self->prepare_orig;
		1462	}
1094		1463
1095	$map->load_header ($path)	1464	$self->default_region (cf::region::find_by_path $self->{path})
1096	or return;	1465	unless $self->default_region;
1097		1466
1098	$map->{load_path} = $path;	1467	1
1099
1100	$map
1101	}	1468	}
1102		1469
		1470	sub find;
1103	sub find_map {	1471	sub find {
1104	my ($path, $origin) = @_;	1472	my ($path, $origin) = @_;
1105		1473
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1474	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1475
		1476	cf::lock_wait "map_find:$path";
		1477
1111	$cf::MAP{$key} || do {	1478	$cf::MAP{$path} || do {
1112	# do it the slow way	1479	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1480	my $map = new_from_path cf::map $path
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	1481	or return;
1127		1482
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	1483	$map->{last_save} = $cf::RUNTIME;
1139		1484
1140	if ($map->should_reset) {	1485	$map->load_header
		1486	or return;
		1487
		1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1489	# doing this can freeze the server in a sync job, obviously
		1490	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1491	$map->reset;
1142	$map = find_map $path;	1492	undef $guard;
		1493	return find $path;
1143	}	1494	}
1144		1495
1145	$cf::MAP{$key} = $map	1496	$cf::MAP{$path} = $map
1146	}	1497	}
1147	}	1498	}
		1499
		1500	sub pre_load { }
		1501	sub post_load { }
1148		1502
1149	sub load {	1503	sub load {
1150	my ($self) = @_;	1504	my ($self) = @_;
1151		1505
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1506	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		1507
1156	my $path = $self->{path};	1508	my $path = $self->{path};
1157		1509
		1510	{
		1511	my $guard = cf::lock_acquire "map_load:$path";
		1512
		1513	return if $self->in_memory != cf::MAP_SWAPPED;
		1514
		1515	$self->in_memory (cf::MAP_LOADING);
		1516
1158	$self->alloc;	1517	$self->alloc;
		1518
		1519	$self->pre_load;
		1520	Coro::cede;
		1521
1159	$self->load_objects ($self->{load_path}, 1)	1522	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1523	or return;
1161		1524
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1525	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1526	if delete $self->{load_original};
1164		1527
1165	if (my $uniq = $path->uniq_path) {	1528	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1529	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1530	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1531	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1532	$self->_load_objects ($uniq, 0);
1170	}	1533	}
1171	}	1534	}
1172		1535
		1536	Coro::cede;
1173	# now do the right thing for maps	1537	# now do the right thing for maps
1174	$self->link_multipart_objects;	1538	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1539	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1540	unless $self->difficulty;
		1541	Coro::cede;
		1542
		1543	unless ($self->{deny_activate}) {
		1544	$self->decay_objects;
		1545	$self->fix_auto_apply;
		1546	$self->update_buttons;
		1547	Coro::cede;
		1548	$self->set_darkness_map;
		1549	Coro::cede;
1186	$self->activate;	1550	$self->activate;
1187	}	1551	}
1188		1552
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1553	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1554	}
1191		1555
1192	sub load_map_sync {	1556	$self->post_load;
		1557	}
		1558
		1559	sub customise_for {
		1560	my ($self, $ob) = @_;
		1561
		1562	return find "~" . $ob->name . "/" . $self->{path}
		1563	if $self->per_player;
		1564
		1565	$self
		1566	}
		1567
		1568	# find and load all maps in the 3x3 area around a map
		1569	sub load_diag {
		1570	my ($map) = @_;
		1571
		1572	my @diag; # diagonal neighbours
		1573
		1574	for (0 .. 3) {
		1575	my $neigh = $map->tile_path ($_)
		1576	or next;
		1577	$neigh = find $neigh, $map
		1578	or next;
		1579	$neigh->load;
		1580
		1581	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1582	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1583	}
		1584
		1585	for (@diag) {
		1586	my $neigh = find @$_
		1587	or next;
		1588	$neigh->load;
		1589	}
		1590	}
		1591
		1592	sub find_sync {
1193	my ($path, $origin) = @_;	1593	my ($path, $origin) = @_;
1194		1594
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1595	cf::sync_job { find $path, $origin }
		1596	}
1196		1597
1197	cf::sync_job {	1598	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1599	my ($map) = @_;
1199	or return;	1600
		1601	cf::sync_job { $map->load };
		1602	}
		1603
		1604	our %MAP_PREFETCH;
		1605	our $MAP_PREFETCHER = undef;
		1606
		1607	sub find_async {
		1608	my ($path, $origin) = @_;
		1609
		1610	$path = normalise $path, $origin && $origin->{path};
		1611
		1612	if (my $map = $cf::MAP{$path}) {
		1613	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1614	}
		1615
		1616	undef $MAP_PREFETCH{$path};
		1617	$MAP_PREFETCHER ||= cf::async {
		1618	while (%MAP_PREFETCH) {
		1619	for my $path (keys %MAP_PREFETCH) {
		1620	my $map = find $path
		1621	or next;
1200	$map->load;	1622	$map->load;
1201	$map	1623
		1624	delete $MAP_PREFETCH{$path};
		1625	}
		1626	}
		1627	undef $MAP_PREFETCHER;
1202	}	1628	};
		1629	$MAP_PREFETCHER->prio (6);
		1630
		1631	()
1203	}	1632	}
1204		1633
1205	sub save {	1634	sub save {
1206	my ($self) = @_;	1635	my ($self) = @_;
1207		1636
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1637	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1638
1211	$self->{last_save} = $cf::RUNTIME;	1639	$self->{last_save} = $cf::RUNTIME;
1212		1640
1213	return unless $self->dirty;	1641	return unless $self->dirty;
1214		1642
		1643	my $save = $self->save_path; utf8::encode $save;
		1644	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1645
1215	$self->{load_path} = $save;	1646	$self->{load_path} = $save;
1216		1647
1217	return if $self->{deny_save};	1648	return if $self->{deny_save};
1218		1649
		1650	local $self->{last_access} = $self->last_access;#d#
		1651
		1652	cf::async {
		1653	$_->contr->save for $self->players;
		1654	};
		1655
1219	if ($uniq) {	1656	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1657	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1658	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1659	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1660	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1661	}
1225	}	1662	}
1226		1663
1227	sub swap_out {	1664	sub swap_out {
1228	my ($self) = @_;	1665	my ($self) = @_;
		1666
		1667	# save first because save cedes
		1668	$self->save;
		1669
		1670	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1671
1230	return if $self->players;	1672	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1673	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1674	return if $self->{deny_save};
1233		1675
1234	$self->save;
1235	$self->clear;	1676	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1677	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1678	}
1238		1679
1239	sub reset_at {	1680	sub reset_at {
1240	my ($self) = @_;	1681	my ($self) = @_;
1241		1682
1242	# TODO: safety, remove and allow resettable per-player maps	1683	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};	1684	return 1e99 if $self->isa ("ext::map_per_player");#d#
1244	return 1e100 if $self->{deny_reset};	1685	return 1e99 if $self->{deny_reset};
1245		1686
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1689
1250	$time + $to	1690	$time + $to
1251	}	1691	}
1252		1692
1253	sub should_reset {	1693	sub should_reset {
1254	my ($self) = @_;	1694	my ($self) = @_;
1255		1695
1256	$self->reset_at <= $cf::RUNTIME	1696	$self->reset_at <= $cf::RUNTIME
1257	}	1697	}
1258		1698
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub reset {	1699	sub reset {
1268	my ($self) = @_;	1700	my ($self) = @_;
1269		1701
		1702	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1703
1270	return if $self->players;	1704	return if $self->players;
1271	return if $self->{path}{user_rel};#d#	1705	return if $self->isa ("ext::map_per_player");#d#
1272		1706
1273	warn "resetting map ", $self->path;#d#	1707	warn "resetting map ", $self->path;#d#
1274		1708
		1709	$self->in_memory (cf::MAP_SWAPPED);
		1710
		1711	# need to save uniques path
		1712	unless ($self->{deny_save}) {
		1713	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1714
		1715	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1716	if $uniq;
		1717	}
		1718
1275	delete $cf::MAP{$self->path};	1719	delete $cf::MAP{$self->path};
		1720
		1721	$self->clear;
1276		1722
1277	$_->clear_links_to ($self) for values %cf::MAP;	1723	$_->clear_links_to ($self) for values %cf::MAP;
1278		1724
1279	$self->unlink_save;	1725	$self->unlink_save;
1280	$self->destroy;	1726	$self->destroy;
1281	}	1727	}
1282		1728
1283	sub customise_for {	1729	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		1730
1286	if ($map->per_player) {	1731	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1732	my ($self) = @_;
1288	}
1289		1733
1290	$map	1734	delete $cf::MAP{$self->path};
1291	}
1292		1735
1293	sub emergency_save {	1736	$self->unlink_save;
1294	local $cf::FREEZE = 1;
1295		1737
1296	warn "enter emergency map save\n";	1738	bless $self, "cf::map";
		1739	delete $self->{deny_reset};
		1740	$self->{deny_save} = 1;
		1741	$self->reset_timeout (1);
		1742	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1297		1743
1298	cf::sync_job {	1744	$cf::MAP{$self->path} = $self;
1299	warn "begin emergency map save\n";	1745
1300	$_->save for values %cf::MAP;	1746	$self->reset; # polite request, might not happen
		1747	}
		1748
		1749	=item cf::map::unique_maps
		1750
		1751	Returns an arrayref of paths of all shared maps that have
		1752	instantiated unique items. May block.
		1753
		1754	=cut
		1755
		1756	sub unique_maps() {
		1757	my $files = aio_readdir $UNIQUEDIR
		1758	or return;
		1759
		1760	my @paths;
		1761
		1762	for (@$files) {
		1763	utf8::decode $_;
		1764	next if /\.pst$/;
		1765	next unless /^$PATH_SEP/o;
		1766
		1767	push @paths, cf::map::normalise $_;
1301	};	1768	}
1302		1769
1303	warn "end emergency map save\n";	1770	\@paths
1304	}	1771	}
1305		1772
1306	package cf;	1773	package cf;
1307		1774
1308	=back	1775	=back
1309		1776
		1777	=head3 cf::object
		1778
		1779	=cut
		1780
		1781	package cf::object;
		1782
		1783	=over 4
		1784
		1785	=item $ob->inv_recursive
		1786
		1787	Returns the inventory of the object _and_ their inventories, recursively.
		1788
		1789	=cut
		1790
		1791	sub inv_recursive_;
		1792	sub inv_recursive_ {
		1793	map { $_, inv_recursive_ $_->inv } @_
		1794	}
		1795
		1796	sub inv_recursive {
		1797	inv_recursive_ inv $_[0]
		1798	}
		1799
		1800	package cf;
		1801
		1802	=back
1310		1803
1311	=head3 cf::object::player	1804	=head3 cf::object::player
1312		1805
1313	=over 4	1806	=over 4
1314		1807
…		…
1350	(ref $cf::CFG{"may_$access"}	1843	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1844	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	1845	: $cf::CFG{"may_$access"})
1353	}	1846	}
1354		1847
		1848	=item $player_object->enter_link
		1849
		1850	Freezes the player and moves him/her to a special map (C<{link}>).
		1851
		1852	The player should be reasonably safe there for short amounts of time. You
		1853	I<MUST> call C<leave_link> as soon as possible, though.
		1854
		1855	Will never block.
		1856
		1857	=item $player_object->leave_link ($map, $x, $y)
		1858
		1859	Moves the player out of the special C<{link}> map onto the specified
		1860	map. If the map is not valid (or omitted), the player will be moved back
		1861	to the location he/she was before the call to C<enter_link>, or, if that
		1862	fails, to the emergency map position.
		1863
		1864	Might block.
		1865
		1866	=cut
		1867
		1868	sub link_map {
		1869	unless ($LINK_MAP) {
		1870	$LINK_MAP = cf::map::find "{link}"
		1871	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1872	$LINK_MAP->load;
		1873	}
		1874
		1875	$LINK_MAP
		1876	}
		1877
1355	sub cf::object::player::enter_link {	1878	sub cf::object::player::enter_link {
1356	my ($self) = @_;	1879	my ($self) = @_;
1357		1880
1358	return if $self->map == $LINK_MAP;	1881	$self->deactivate_recursive;
1359		1882
		1883	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1884
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1885	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;	1886	if $self->map;
1362		1887
1363	$self->enter_map ($LINK_MAP, 20, 20);	1888	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1364	$self->deactivate_recursive;
1365	}	1889	}
1366		1890
1367	sub cf::object::player::leave_link {	1891	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	1892	my ($self, $map, $x, $y) = @_;
1369		1893
1370	my $link_pos = delete $self->{_link_pos};	1894	my $link_pos = delete $self->{_link_pos};
1371		1895
1372	unless ($map) {	1896	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	1897	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	1898	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	1899	$map = cf::map::find $map;
1378		1900
1379	unless ($map) {	1901	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	1902	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	1903	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	1904	or die "FATAL: cannot load emergency map\n";
1383	}	1905	}
1384	}	1906	}
1385		1907
1386	($x, $y) = (-1, -1)	1908	($x, $y) = (-1, -1)
…		…
1389	# use -1 or undef as default coordinates, not 0, 0	1911	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	1912	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	1913	if $x <=0 && $y <= 0;
1392		1914
1393	$map->load;	1915	$map->load;
		1916	$map->load_diag;
1394		1917
		1918	return unless $self->contr->active;
1395	$self->activate_recursive;	1919	$self->activate_recursive;
		1920
		1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1396	$self->enter_map ($map, $x, $y);	1922	$self->enter_map ($map, $x, $y);
1397	}	1923	}
1398		1924
		1925	cf::player->attach (
		1926	on_logout => sub {
		1927	my ($pl) = @_;
		1928
		1929	# abort map switching before logout
		1930	if ($pl->ob->{_link_pos}) {
		1931	cf::sync_job {
		1932	$pl->ob->leave_link
		1933	};
		1934	}
		1935	},
		1936	on_login => sub {
		1937	my ($pl) = @_;
		1938
		1939	# try to abort aborted map switching on player login :)
		1940	# should happen only on crashes
		1941	if ($pl->ob->{_link_pos}) {
		1942	$pl->ob->enter_link;
		1943	(async {
		1944	$pl->ob->reply (undef,
		1945	"There was an internal problem at your last logout, "
		1946	. "the server will try to bring you to your intended destination in a second.",
		1947	cf::NDI_RED);
		1948	# we need this sleep as the login has a concurrent enter_exit running
		1949	# and this sleep increases chances of the player not ending up in scorn
		1950	Coro::Timer::sleep 1;
		1951	$pl->ob->leave_link;
		1952	})->prio (2);
		1953	}
		1954	},
		1955	);
		1956
1399	=item $player_object->goto_map ($map, $x, $y)	1957	=item $player_object->goto ($path, $x, $y)
1400		1958
1401	=cut	1959	=cut
1402		1960
1403	sub cf::object::player::goto_map {	1961	sub cf::object::player::goto {
1404	my ($self, $path, $x, $y) = @_;	1962	my ($self, $path, $x, $y) = @_;
1405		1963
1406	$self->enter_link;	1964	$self->enter_link;
1407		1965
1408	(Coro::async {	1966	(async {
1409	$path = new cf::path $path;	1967	my $map = eval {
1410
1411	my $map = cf::map::find_map $path->as_string;	1968	my $map = cf::map::find $path;
1412	$map = $map->customise_for ($self) if $map;	1969	$map = $map->customise_for ($self) if $map;
1413
1414	warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	1970	$map
		1971	} or
		1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1416		1973
1417	$self->leave_link ($map, $x, $y);	1974	$self->leave_link ($map, $x, $y);
1418	})->prio (1);	1975	})->prio (1);
1419	}	1976	}
1420		1977
…		…
1424		1981
1425	sub parse_random_map_params {	1982	sub parse_random_map_params {
1426	my ($spec) = @_;	1983	my ($spec) = @_;
1427		1984
1428	my $rmp = { # defaults	1985	my $rmp = { # defaults
1429	xsize => 10,	1986	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	1987	ysize => (cf::rndm 15, 40),
		1988	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1989	#layout => string,
1431	};	1990	};
1432		1991
1433	for (split /\n/, $spec) {	1992	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	1993	my ($k, $v) = split /\s+/, $_, 2;
1435		1994
…		…
1439	$rmp	1998	$rmp
1440	}	1999	}
1441		2000
1442	sub prepare_random_map {	2001	sub prepare_random_map {
1443	my ($exit) = @_;	2002	my ($exit) = @_;
		2003
		2004	my $guard = cf::lock_acquire "exit_prepare:$exit";
1444		2005
1445	# all this does is basically replace the /! path by	2006	# all this does is basically replace the /! path by
1446	# a new random map path (?random/...) with a seed	2007	# a new random map path (?random/...) with a seed
1447	# that depends on the exit object	2008	# that depends on the exit object
1448		2009
1449	my $rmp = parse_random_map_params $exit->msg;	2010	my $rmp = parse_random_map_params $exit->msg;
1450		2011
1451	if ($exit->map) {	2012	if ($exit->map) {
1452	$rmp->{region} = $exit->map->region_name;	2013	$rmp->{region} = $exit->region->name;
1453	$rmp->{origin_map} = $exit->map->path;	2014	$rmp->{origin_map} = $exit->map->path;
1454	$rmp->{origin_x} = $exit->x;	2015	$rmp->{origin_x} = $exit->x;
1455	$rmp->{origin_y} = $exit->y;	2016	$rmp->{origin_y} = $exit->y;
1456	}	2017	}
1457		2018
1458	$rmp->{random_seed} ||= $exit->random_seed;	2019	$rmp->{random_seed} ||= $exit->random_seed;
1459		2020
1460	my $data = cf::to_json $rmp;	2021	my $data = cf::to_json $rmp;
1461	my $md5 = Digest::MD5::md5_hex $data;	2022	my $md5 = Digest::MD5::md5_hex $data;
		2023	my $meta = "$RANDOMDIR/$md5.meta";
1462		2024
1463	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2025	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1464	aio_write $fh, 0, (length $data), $data, 0;	2026	aio_write $fh, 0, (length $data), $data, 0;
		2027	undef $fh;
		2028	aio_rename "$meta~", $meta;
1465		2029
1466	$exit->slaying ("?random/$md5");	2030	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	2031	$exit->msg (undef);
1468	}	2032	}
1469	}	2033	}
…		…
1471	sub cf::object::player::enter_exit {	2035	sub cf::object::player::enter_exit {
1472	my ($self, $exit) = @_;	2036	my ($self, $exit) = @_;
1473		2037
1474	return unless $self->type == cf::PLAYER;	2038	return unless $self->type == cf::PLAYER;
1475		2039
		2040	if ($exit->slaying eq "/!") {
		2041	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2042	# the problem is that $exit might not survive long enough
		2043	# so it needs to be done right now, right here
		2044	cf::sync_job { prepare_random_map $exit };
		2045	}
		2046
		2047	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2048	my $hp = $exit->stats->hp;
		2049	my $sp = $exit->stats->sp;
		2050
1476	$self->enter_link;	2051	$self->enter_link;
1477		2052
1478	(Coro::async {	2053	(async {
		2054	$self->deactivate_recursive; # just to be sure
1479	unless (eval {	2055	unless (eval {
1480		2056	$self->goto ($slaying, $hp, $sp);
1481	prepare_random_map $exit
1482	if $exit->slaying eq "/!";
1483
1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1486		2057
1487	1;	2058	1;
1488	}) {	2059	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	2060	$self->message ("Something went wrong deep within the crossfire server. "
1490	. "I'll try to bring you back to the map you were before. "	2061	. "I'll try to bring you back to the map you were before. "
1491	. "Please report this to the dungeon master",	2062	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	2063	cf::NDI_UNIQUE | cf::NDI_RED);
1493		2064
1494	warn "ERROR in enter_exit: $@";	2065	warn "ERROR in enter_exit: $@";
1495	$self->leave_link;	2066	$self->leave_link;
1496	}	2067	}
1497	})->prio (1);	2068	})->prio (1);
…		…
1510		2081
1511	sub cf::client::send_drawinfo {	2082	sub cf::client::send_drawinfo {
1512	my ($self, $text, $flags) = @_;	2083	my ($self, $text, $flags) = @_;
1513		2084
1514	utf8::encode $text;	2085	utf8::encode $text;
1515	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2086	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1516	}	2087	}
1517		2088
		2089	=item $client->ext_event ($type, %msg)
		2090
		2091	Sends an exti event to the client.
		2092
		2093	=cut
		2094
		2095	sub cf::client::ext_event($$%) {
		2096	my ($self, $type, %msg) = @_;
		2097
		2098	$msg{msgtype} = "event_$type";
		2099	$self->send_packet ("ext " . cf::to_json \%msg);
		2100	}
1518		2101
1519	=item $success = $client->query ($flags, "text", \&cb)	2102	=item $success = $client->query ($flags, "text", \&cb)
1520		2103
1521	Queues a query to the client, calling the given callback with	2104	Queues a query to the client, calling the given callback with
1522	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2105	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1547	on_reply => sub {	2130	on_reply => sub {
1548	my ($ns, $msg) = @_;	2131	my ($ns, $msg) = @_;
1549		2132
1550	# this weird shuffling is so that direct followup queries	2133	# this weird shuffling is so that direct followup queries
1551	# get handled first	2134	# get handled first
1552	my $queue = delete $ns->{query_queue};	2135	my $queue = delete $ns->{query_queue}
		2136	or return; # be conservative, not sure how that can happen, but we saw a crash here
1553		2137
1554	(shift @$queue)->[1]->($msg);	2138	(shift @$queue)->[1]->($msg);
		2139	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1555		2140
1556	push @{ $ns->{query_queue} }, @$queue;	2141	push @{ $ns->{query_queue} }, @$queue;
1557		2142
1558	if (@{ $ns->{query_queue} } == @$queue) {	2143	if (@{ $ns->{query_queue} } == @$queue) {
1559	if (@$queue) {	2144	if (@$queue) {
…		…
1563	}	2148	}
1564	}	2149	}
1565	},	2150	},
1566	);	2151	);
1567		2152
1568	=item $client->coro (\&cb)	2153	=item $client->async (\&cb)
1569		2154
1570	Create a new coroutine, running the specified callback. The coroutine will	2155	Create a new coroutine, running the specified callback. The coroutine will
1571	be automatically cancelled when the client gets destroyed (e.g. on logout,	2156	be automatically cancelled when the client gets destroyed (e.g. on logout,
1572	or loss of connection).	2157	or loss of connection).
1573		2158
1574	=cut	2159	=cut
1575		2160
1576	sub cf::client::coro {	2161	sub cf::client::async {
1577	my ($self, $cb) = @_;	2162	my ($self, $cb) = @_;
1578		2163
1579	my $coro; $coro = async {	2164	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		2165
1586	$coro->on_destroy (sub {	2166	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	2167	delete $self->{_coro}{$coro+0};
1588	});	2168	});
1589		2169
…		…
1622		2202
1623	# here we export the classes and methods available to script code	2203	# here we export the classes and methods available to script code
1624		2204
1625	=pod	2205	=pod
1626		2206
1627	The following fucntions and emthods are available within a safe environment:	2207	The following functions and methods are available within a safe environment:
1628		2208
1629	cf::object contr pay_amount pay_player map	2209	cf::object contr pay_amount pay_player map
1630	cf::object::player player	2210	cf::object::player player
1631	cf::player peaceful	2211	cf::player peaceful
1632	cf::map trigger	2212	cf::map trigger
…		…
1717	#############################################################################	2297	#############################################################################
1718		2298
1719	=head2 EXTENSION DATABASE SUPPORT	2299	=head2 EXTENSION DATABASE SUPPORT
1720		2300
1721	Crossfire maintains a very simple database for extension use. It can	2301	Crossfire maintains a very simple database for extension use. It can
1722	currently store anything that can be serialised using Storable, which	2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1723	excludes objects.	2303	convert to/from binary).
1724		2304
1725	The parameter C<$family> should best start with the name of the extension	2305	The parameter C<$family> should best start with the name of the extension
1726	using it, it should be unique.	2306	using it, it should be unique.
1727		2307
1728	=over 4	2308	=over 4
1729		2309
1730	=item $hashref = cf::db_get $family
1731
1732	Return a hashref for use by the extension C<$family>, which can be
1733	modified. After modifications, you have to call C<cf::db_dirty> or
1734	C<cf::db_sync>.
1735
1736	=item $value = cf::db_get $family => $key	2310	=item $value = cf::db_get $family => $key
1737		2311
1738	Returns a single value from the database	2312	Returns a single value from the database.
1739
1740	=item cf::db_put $family => $hashref
1741
1742	Stores the given family hashref into the database. Updates are delayed, if
1743	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1744		2313
1745	=item cf::db_put $family => $key => $value	2314	=item cf::db_put $family => $key => $value
1746		2315
1747	Stores the given C<$value> in the family hash. Updates are delayed, if you	2316	Stores the given C<$value> in the family.
1748	want the data to be synced to disk immediately, use C<cf::db_sync>.
1749
1750	=item cf::db_dirty
1751
1752	Marks the database as dirty, to be updated at a later time.
1753
1754	=item cf::db_sync
1755
1756	Immediately write the database to disk I<if it is dirty>.
1757		2317
1758	=cut	2318	=cut
1759		2319
1760	our $DB;	2320	our $DB;
1761		2321
1762	{	2322	sub db_init {
1763	my $path = cf::localdir . "/database.pst";	2323	unless ($DB) {
		2324	$DB = BDB::db_create $DB_ENV;
1764		2325
1765	sub db_load() {	2326	cf::sync_job {
1766	warn "loading database $path\n";#d# remove later	2327	eval {
1767	$DB = stat $path ? Storable::retrieve $path : { };	2328	$DB->set_flags (BDB::CHKSUM);
1768	}
1769		2329
1770	my $pid;	2330	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1771		2331	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1772	sub db_save() {	2332	cf::cleanup "db_open(db): $!" if $!;
1773	warn "saving database $path\n";#d# remove later	2333	};
1774	waitpid $pid, 0 if $pid;	2334	cf::cleanup "db_open(db): $@" if $@;
1775	if (0 == ($pid = fork)) {
1776	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;
1779	cf::_exit 0 if defined $pid;
1780	}	2335	};
1781	}
1782
1783	my $dirty;
1784
1785	sub db_sync() {
1786	db_save if $dirty;
1787	undef $dirty;
1788	}
1789
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1791	db_sync;
1792	});	2336	}
		2337	}
1793		2338
1794	sub db_dirty() {
1795	$dirty = 1;
1796	$idle->start;
1797	}
1798
1799	sub db_get($;$) {	2339	sub db_get($$) {
1800	@_ >= 2	2340	my $key = "$_[0]/$_[1]";
1801	? $DB->{$_[0]}{$_[1]}
1802	: ($DB->{$_[0]} ||= { })
1803	}
1804		2341
		2342	cf::sync_job {
		2343	BDB::db_get $DB, undef, $key, my $data;
		2344
		2345	$! ? ()
		2346	: $data
		2347	}
		2348	}
		2349
1805	sub db_put($$;$) {	2350	sub db_put($$$) {
1806	if (@_ >= 3) {	2351	BDB::dbreq_pri 4;
1807	$DB->{$_[0]}{$_[1]} = $_[2];	2352	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1808	} else {	2353	}
1809	$DB->{$_[0]} = $_[1];
1810	}
1811	db_dirty;
1812	}
1813		2354
1814	cf::global->attach (	2355	=item cf::cache $id => [$paths...], $processversion => $process
1815	prio => 10000,	2356
1816	on_cleanup => sub {	2357	Generic caching function that returns the value of the resource $id,
1817	db_sync;	2358	caching and regenerating as required.
		2359
		2360	This function can block.
		2361
		2362	=cut
		2363
		2364	sub cache {
		2365	my ($id, $src, $processversion, $process) = @_;
		2366
		2367	my $meta =
		2368	join "\x00",
		2369	$processversion,
		2370	map {
		2371	aio_stat $_
		2372	and Carp::croak "$_: $!";
		2373
		2374	($_, (stat _)[7,9])
		2375	} @$src;
		2376
		2377	my $dbmeta = db_get cache => "$id/meta";
		2378	if ($dbmeta ne $meta) {
		2379	# changed, we may need to process
		2380
		2381	my @data;
		2382	my $md5;
		2383
		2384	for (0 .. $#$src) {
		2385	0 <= aio_load $src->[$_], $data[$_]
		2386	or Carp::croak "$src->[$_]: $!";
1818	},	2387	}
1819	);	2388
		2389	# if processing is expensive, check
		2390	# checksum first
		2391	if (1) {
		2392	$md5 =
		2393	join "\x00",
		2394	$processversion,
		2395	map {
		2396	Coro::cede;
		2397	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2398	} 0.. $#$src;
		2399
		2400
		2401	my $dbmd5 = db_get cache => "$id/md5";
		2402	if ($dbmd5 eq $md5) {
		2403	db_put cache => "$id/meta", $meta;
		2404
		2405	return db_get cache => "$id/data";
		2406	}
		2407	}
		2408
		2409	my $t1 = Time::HiRes::time;
		2410	my $data = $process->(\@data);
		2411	my $t2 = Time::HiRes::time;
		2412
		2413	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2414
		2415	db_put cache => "$id/data", $data;
		2416	db_put cache => "$id/md5" , $md5;
		2417	db_put cache => "$id/meta", $meta;
		2418
		2419	return $data;
		2420	}
		2421
		2422	db_get cache => "$id/data"
1820	}	2423	}
		2424
		2425	=item fork_call { }, $args
		2426
		2427	Executes the given code block with the given arguments in a seperate
		2428	process, returning the results. Everything must be serialisable with
		2429	Coro::Storable. May, of course, block. Note that the executed sub may
		2430	never block itself or use any form of Event handling.
		2431
		2432	=cut
		2433
		2434	sub fork_call(&@) {
		2435	my ($cb, @args) = @_;
		2436
		2437	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2438	# or die "socketpair: $!";
		2439	pipe my $fh1, my $fh2
		2440	or die "pipe: $!";
		2441
		2442	if (my $pid = fork) {
		2443	close $fh2;
		2444
		2445	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2446	$res = Coro::Storable::thaw $res;
		2447
		2448	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2449
		2450	die $$res unless "ARRAY" eq ref $res;
		2451
		2452	return wantarray ? @$res : $res->[-1];
		2453	} else {
		2454	reset_signals;
		2455	local $SIG{__WARN__};
		2456	local $SIG{__DIE__};
		2457	eval {
		2458	close $fh1;
		2459
		2460	my @res = eval { $cb->(@args) };
		2461	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2462	};
		2463
		2464	warn $@ if $@;
		2465	_exit 0;
		2466	}
		2467	}
		2468
		2469
1821		2470
1822	#############################################################################	2471	#############################################################################
1823	# the server's main()	2472	# the server's init and main functions
		2473
		2474	sub load_facedata($) {
		2475	my ($path) = @_;
		2476
		2477	warn "loading facedata from $path\n";
		2478
		2479	my $facedata;
		2480	0 < aio_load $path, $facedata
		2481	or die "$path: $!";
		2482
		2483	$facedata = Coro::Storable::thaw $facedata;
		2484
		2485	$facedata->{version} == 2
		2486	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2487
		2488	{
		2489	my $faces = $facedata->{faceinfo};
		2490
		2491	while (my ($face, $info) = each %$faces) {
		2492	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2493	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2494	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2495	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2496	Coro::cede;
		2497	}
		2498
		2499	while (my ($face, $info) = each %$faces) {
		2500	next unless $info->{smooth};
		2501	my $idx = cf::face::find $face
		2502	or next;
		2503	if (my $smooth = cf::face::find $info->{smooth}) {
		2504	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2505	} else {
		2506	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2507	}
		2508	Coro::cede;
		2509	}
		2510	}
		2511
		2512	{
		2513	my $anims = $facedata->{animinfo};
		2514
		2515	while (my ($anim, $info) = each %$anims) {
		2516	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2517	Coro::cede;
		2518	}
		2519
		2520	cf::anim::invalidate_all; # d'oh
		2521	}
		2522
		2523	1
		2524	}
		2525
		2526	sub reload_regions {
		2527	load_resource_file "$MAPDIR/regions"
		2528	or die "unable to load regions file\n";
		2529	}
		2530
		2531	sub reload_facedata {
		2532	load_facedata "$DATADIR/facedata"
		2533	or die "unable to load facedata\n";
		2534	}
		2535
		2536	sub reload_archetypes {
		2537	load_resource_file "$DATADIR/archetypes"
		2538	or die "unable to load archetypes\n";
		2539	}
		2540
		2541	sub reload_treasures {
		2542	load_resource_file "$DATADIR/treasures"
		2543	or die "unable to load treasurelists\n";
		2544	}
		2545
		2546	sub reload_resources {
		2547	warn "reloading resource files...\n";
		2548
		2549	reload_regions;
		2550	reload_facedata;
		2551	reload_archetypes;
		2552	reload_treasures;
		2553
		2554	warn "finished reloading resource files\n";
		2555	}
		2556
		2557	sub init {
		2558	reload_resources;
		2559	}
1824		2560
1825	sub cfg_load {	2561	sub cfg_load {
1826	open my $fh, "<:utf8", cf::confdir . "/config"	2562	open my $fh, "<:utf8", "$CONFDIR/config"
1827	or return;	2563	or return;
1828		2564
1829	local $/;	2565	local $/;
1830	*CFG = YAML::Syck::Load <$fh>;	2566	*CFG = YAML::Syck::Load <$fh>;
		2567
		2568	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2569
		2570	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2571	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2572
		2573	if (exists $CFG{mlockall}) {
		2574	eval {
		2575	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2576	and die "WARNING: m(un)lockall failed: $!\n";
		2577	};
		2578	warn $@ if $@;
		2579	}
1831	}	2580	}
1832		2581
1833	sub main {	2582	sub main {
1834	# we must not ever block the main coroutine	2583	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	2584	local $Coro::idle = sub {
1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2585	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1837	(Coro::unblock_sub {	2586	(async {
1838	Event::one_event;	2587	Event::one_event;
1839	})->();	2588	})->prio (Coro::PRIO_MAX);
1840	};	2589	};
1841		2590
1842	cfg_load;	2591	cfg_load;
1843	db_load;	2592	db_init;
1844	load_extensions;	2593	load_extensions;
		2594
		2595	$TICK_WATCHER->start;
1845	Event::loop;	2596	Event::loop;
1846	}	2597	}
1847		2598
1848	#############################################################################	2599	#############################################################################
1849	# initialisation	2600	# initialisation and cleanup
1850		2601
		2602	# install some emergency cleanup handlers
		2603	BEGIN {
		2604	for my $signal (qw(INT HUP TERM)) {
		2605	Event->signal (
		2606	reentrant => 0,
		2607	data => WF_AUTOCANCEL,
		2608	signal => $signal,
		2609	prio => 0,
		2610	cb => sub {
		2611	cf::cleanup "SIG$signal";
		2612	},
		2613	);
		2614	}
		2615	}
		2616
		2617	sub emergency_save() {
		2618	my $freeze_guard = cf::freeze_mainloop;
		2619
		2620	warn "enter emergency perl save\n";
		2621
		2622	cf::sync_job {
		2623	# use a peculiar iteration method to avoid tripping on perl
		2624	# refcount bugs in for. also avoids problems with players
		2625	# and maps saved/destroyed asynchronously.
		2626	warn "begin emergency player save\n";
		2627	for my $login (keys %cf::PLAYER) {
		2628	my $pl = $cf::PLAYER{$login} or next;
		2629	$pl->valid or next;
		2630	$pl->save;
		2631	}
		2632	warn "end emergency player save\n";
		2633
		2634	warn "begin emergency map save\n";
		2635	for my $path (keys %cf::MAP) {
		2636	my $map = $cf::MAP{$path} or next;
		2637	$map->valid or next;
		2638	$map->save;
		2639	}
		2640	warn "end emergency map save\n";
		2641
		2642	warn "begin emergency database checkpoint\n";
		2643	BDB::db_env_txn_checkpoint $DB_ENV;
		2644	warn "end emergency database checkpoint\n";
		2645	};
		2646
		2647	warn "leave emergency perl save\n";
		2648	}
		2649
		2650	sub post_cleanup {
		2651	my ($make_core) = @_;
		2652
		2653	warn Carp::longmess "post_cleanup backtrace"
		2654	if $make_core;
		2655	}
		2656
1851	sub reload() {	2657	sub do_reload_perl() {
1852	# can/must only be called in main	2658	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	2659	if ($Coro::current != $Coro::main) {
1854	warn "can only reload from main coroutine\n";	2660	warn "can only reload from main coroutine";
1855	return;	2661	return;
1856	}	2662	}
1857		2663
1858	warn "reloading...";	2664	warn "reloading...";
1859		2665
1860	local $FREEZE = 1;	2666	warn "entering sync_job";
		2667
		2668	cf::sync_job {
		2669	cf::write_runtime; # external watchdog should not bark
1861	cf::emergency_save;	2670	cf::emergency_save;
		2671	cf::write_runtime; # external watchdog should not bark
1862		2672
1863	eval {	2673	warn "syncing database to disk";
		2674	BDB::db_env_txn_checkpoint $DB_ENV;
		2675
1864	# if anything goes wrong in here, we should simply crash as we already saved	2676	# if anything goes wrong in here, we should simply crash as we already saved
1865		2677
1866	# cancel all watchers	2678	warn "cancelling all WF_AUTOCANCEL watchers";
1867	for (Event::all_watchers) {	2679	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;	2680	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}	2681	}
1870		2682
		2683	warn "flushing outstanding aio requests";
		2684	for (;;) {
		2685	BDB::flush;
		2686	IO::AIO::flush;
		2687	Coro::cede;
		2688	last unless IO::AIO::nreqs || BDB::nreqs;
		2689	warn "iterate...";
		2690	}
		2691
		2692	++$RELOAD;
		2693
1871	# cancel all extension coros	2694	warn "cancelling all extension coros";
1872	$_->cancel for values %EXT_CORO;	2695	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	2696	%EXT_CORO = ();
1874		2697
1875	# unload all extensions	2698	warn "removing commands";
1876	for (@exts) {	2699	%COMMAND = ();
		2700
		2701	warn "removing ext commands";
		2702	%EXTCMD = ();
		2703
		2704	warn "unloading/nuking all extensions";
		2705	for my $pkg (@EXTS) {
1877	warn "unloading <$_>";	2706	warn "... unloading $pkg";
1878	unload_extension $_;	2707
		2708	if (my $cb = $pkg->can ("unload")) {
		2709	eval {
		2710	$cb->($pkg);
		2711	1
		2712	} or warn "$pkg unloaded, but with errors: $@";
1879	}	2713	}
1880		2714
		2715	warn "... nuking $pkg";
		2716	Symbol::delete_package $pkg;
		2717	}
		2718
1881	# unload all modules loaded from $LIBDIR	2719	warn "unloading all perl modules loaded from $LIBDIR";
1882	while (my ($k, $v) = each %INC) {	2720	while (my ($k, $v) = each %INC) {
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2721	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1884		2722
1885	warn "removing <$k>";	2723	warn "... unloading $k";
1886	delete $INC{$k};	2724	delete $INC{$k};
1887		2725
1888	$k =~ s/\.pm$//;	2726	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;	2727	$k =~ s/\//::/g;
1890		2728
…		…
1893	}	2731	}
1894		2732
1895	Symbol::delete_package $k;	2733	Symbol::delete_package $k;
1896	}	2734	}
1897		2735
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	2736	warn "getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	2737	Symbol::delete_package "safe::$_"
1904	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2738	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1905		2739
1906	# remove register_script_function callbacks
1907	# TODO
1908
1909	# unload cf.pm "a bit"	2740	warn "unloading cf.pm \"a bit\"";
1910	delete $INC{"cf.pm"};	2741	delete $INC{"cf.pm"};
		2742	delete $INC{"cf/pod.pm"};
1911		2743
1912	# don't, removes xs symbols, too,	2744	# don't, removes xs symbols, too,
1913	# and global variables created in xs	2745	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	2746	#Symbol::delete_package __PACKAGE__;
1915		2747
1916	# reload cf.pm	2748	warn "unload completed, starting to reload now";
		2749
1917	warn "reloading cf.pm";	2750	warn "reloading cf.pm";
1918	require cf;	2751	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1920		2753
1921	# load config and database again	2754	warn "loading config and database again";
1922	cf::cfg_load;	2755	cf::cfg_load;
1923	cf::db_load;
1924		2756
1925	# load extensions
1926	warn "load extensions";	2757	warn "loading extensions";
1927	cf::load_extensions;	2758	cf::load_extensions;
1928		2759
1929	# reattach attachments to objects	2760	warn "reattaching attachments to objects/players";
1930	warn "reattach";	2761	_global_reattach; # objects, sockets
1931	_global_reattach;	2762	warn "reattaching attachments to maps";
1932	};	2763	reattach $_ for values %MAP;
		2764	warn "reattaching attachments to players";
		2765	reattach $_ for values %PLAYER;
1933		2766
1934	if ($@) {	2767	warn "leaving sync_job";
		2768
		2769	1
		2770	} or do {
1935	warn $@;	2771	warn $@;
1936	warn "error while reloading, exiting.";	2772	warn "error while reloading, exiting.";
1937	exit 1;	2773	exit 1;
1938	}	2774	};
1939		2775
1940	warn "reloaded successfully";	2776	warn "reloaded";
1941	};	2777	};
1942		2778
1943	#############################################################################	2779	our $RELOAD_WATCHER; # used only during reload
1944		2780
1945	unless ($LINK_MAP) {	2781	sub reload_perl() {
1946	$LINK_MAP = cf::map::new;	2782	# doing reload synchronously and two reloads happen back-to-back,
		2783	# coro crashes during coro_state_free->destroy here.
1947		2784
1948	$LINK_MAP->width (41);	2785	$RELOAD_WATCHER ||= Event->timer (
1949	$LINK_MAP->height (41);	2786	reentrant => 0,
1950	$LINK_MAP->alloc;
1951	$LINK_MAP->path ("{link}");
1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955	# dirty hack because... archetypes are not yet loaded
1956	Event->timer (
1957	after => 2,	2787	after => 0,
		2788	data => WF_AUTOCANCEL,
1958	cb => sub {	2789	cb => sub {
1959	$_[0]->w->cancel;	2790	do_reload_perl;
1960		2791	undef $RELOAD_WATCHER;
1961	# provide some exits "home"
1962	my $exit = cf::object::new "exit";
1963
1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968	$LINK_MAP->insert ($exit->clone, 19, 19);
1969	$LINK_MAP->insert ($exit->clone, 19, 20);
1970	$LINK_MAP->insert ($exit->clone, 19, 21);
1971	$LINK_MAP->insert ($exit->clone, 20, 19);
1972	$LINK_MAP->insert ($exit->clone, 20, 21);
1973	$LINK_MAP->insert ($exit->clone, 21, 19);
1974	$LINK_MAP->insert ($exit->clone, 21, 20);
1975	$LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977	$exit->destroy;
1978	});	2792	},
1979		2793	);
1980	$LINK_MAP->{deny_save} = 1;
1981	$LINK_MAP->{deny_reset} = 1;
1982
1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984	}	2794	}
1985
1986	register "<global>", __PACKAGE__;
1987		2795
1988	register_command "reload" => sub {	2796	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	2797	my ($who, $arg) = @_;
1990		2798
1991	if ($who->flag (FLAG_WIZ)) {	2799	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");
1993	reload;
1994	$who->message ("end of reload.");	2800	$who->message ("reloading server.");
		2801	async { reload_perl };
1995	}	2802	}
1996	};	2803	};
1997		2804
1998	unshift @INC, $LIBDIR;	2805	unshift @INC, $LIBDIR;
		2806
		2807	my $bug_warning = 0;
		2808
		2809	our @WAIT_FOR_TICK;
		2810	our @WAIT_FOR_TICK_BEGIN;
		2811
		2812	sub wait_for_tick {
		2813	return unless $TICK_WATCHER->is_active;
		2814	return if $Coro::current == $Coro::main;
		2815
		2816	my $signal = new Coro::Signal;
		2817	push @WAIT_FOR_TICK, $signal;
		2818	$signal->wait;
		2819	}
		2820
		2821	sub wait_for_tick_begin {
		2822	return unless $TICK_WATCHER->is_active;
		2823	return if $Coro::current == $Coro::main;
		2824
		2825	my $signal = new Coro::Signal;
		2826	push @WAIT_FOR_TICK_BEGIN, $signal;
		2827	$signal->wait;
		2828	}
1999		2829
2000	$TICK_WATCHER = Event->timer (	2830	$TICK_WATCHER = Event->timer (
2001	reentrant => 0,	2831	reentrant => 0,
		2832	parked => 1,
2002	prio => 0,	2833	prio => 0,
2003	at => $NEXT_TICK || $TICK,	2834	at => $NEXT_TICK || $TICK,
2004	data => WF_AUTOCANCEL,	2835	data => WF_AUTOCANCEL,
2005	cb => sub {	2836	cb => sub {
2006	unless ($FREEZE) {	2837	if ($Coro::current != $Coro::main) {
		2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2839	unless ++$bug_warning > 10;
		2840	return;
		2841	}
		2842
		2843	$NOW = Event::time;
		2844
2007	cf::server_tick; # one server iteration	2845	cf::server_tick; # one server iteration
		2846
2008	$RUNTIME += $TICK;	2847	$RUNTIME += $TICK;
2009	}
2010
2011	$NEXT_TICK += $TICK;	2848	$NEXT_TICK += $TICK;
		2849
		2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2851	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2852	Coro::async_pool {
		2853	write_runtime
		2854	or warn "ERROR: unable to write runtime file: $!";
		2855	};
		2856	}
		2857
		2858	# my $AFTER = Event::time;
		2859	# warn $AFTER - $NOW;#d#
2012		2860
2013	# if we are delayed by four ticks or more, skip them all	2861	# if we are delayed by four ticks or more, skip them all
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2015		2863
2016	$TICK_WATCHER->at ($NEXT_TICK);	2864	$TICK_WATCHER->at ($NEXT_TICK);
2017	$TICK_WATCHER->start;	2865	$TICK_WATCHER->start;
		2866
		2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2868	$sig->send;
		2869	}
		2870	while (my $sig = shift @WAIT_FOR_TICK) {
		2871	$sig->send;
		2872	}
		2873
		2874	_post_tick;
2018	},	2875	},
2019	);	2876	);
2020		2877
		2878	{
2021	IO::AIO::max_poll_time $TICK * 0.2;	2879	BDB::max_poll_time $TICK * 0.1;
2022		2880	$BDB_POLL_WATCHER = Event->io (
2023	Event->io (	2881	reentrant => 0,
2024	fd => IO::AIO::poll_fileno,	2882	fd => BDB::poll_fileno,
2025	poll => 'r',	2883	poll => 'r',
2026	prio => 5,	2884	prio => 0,
2027	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,
2029	);
2030
2031	Event->timer (
2032	data => WF_AUTOCANCEL,	2885	data => WF_AUTOCANCEL,
2033	after => 0,	2886	cb => \&BDB::poll_cb,
2034	interval => 10,	2887	);
2035	cb => sub {	2888	BDB::min_parallel 8;
2036	(Coro::unblock_sub {	2889
2037	write_runtime	2890	BDB::set_sync_prepare {
2038	or warn "ERROR: unable to write runtime file: $!";	2891	my $status;
		2892	my $current = $Coro::current;
		2893	(
		2894	sub {
		2895	$status = $!;
		2896	$current->ready; undef $current;
		2897	},
		2898	sub {
		2899	Coro::schedule while defined $current;
		2900	$! = $status;
		2901	},
		2902	)
		2903	};
		2904
		2905	unless ($DB_ENV) {
		2906	$DB_ENV = BDB::db_env_create;
		2907
		2908	cf::sync_job {
		2909	eval {
		2910	BDB::db_env_open
		2911	$DB_ENV,
		2912	$BDBDIR,
		2913	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2914	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2915	0666;
		2916
		2917	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2918
		2919	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2920	$DB_ENV->set_lk_detect;
		2921	};
		2922
		2923	cf::cleanup "db_env_open(db): $@" if $@;
2039	})->();	2924	};
2040	},	2925	}
2041	);	2926	}
		2927
		2928	{
		2929	IO::AIO::min_parallel 8;
		2930
		2931	undef $Coro::AIO::WATCHER;
		2932	IO::AIO::max_poll_time $TICK * 0.1;
		2933	$AIO_POLL_WATCHER = Event->io (
		2934	reentrant => 0,
		2935	data => WF_AUTOCANCEL,
		2936	fd => IO::AIO::poll_fileno,
		2937	poll => 'r',
		2938	prio => 6,
		2939	cb => \&IO::AIO::poll_cb,
		2940	);
		2941	}
		2942
		2943	my $_log_backtrace;
		2944
		2945	sub _log_backtrace {
		2946	my ($msg, @addr) = @_;
		2947
		2948	$msg =~ s/\n//;
		2949
		2950	# limit the # of concurrent backtraces
		2951	if ($_log_backtrace < 2) {
		2952	++$_log_backtrace;
		2953	async {
		2954	my @bt = fork_call {
		2955	@addr = map { sprintf "%x", $_ } @addr;
		2956	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2957	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2958	or die "addr2line: $!";
		2959
		2960	my @funcs;
		2961	my @res = <$fh>;
		2962	chomp for @res;
		2963	while (@res) {
		2964	my ($func, $line) = splice @res, 0, 2, ();
		2965	push @funcs, "[$func] $line";
		2966	}
		2967
		2968	@funcs
		2969	};
		2970
		2971	LOG llevInfo, "[ABT] $msg\n";
		2972	LOG llevInfo, "[ABT] $_\n" for @bt;
		2973	--$_log_backtrace;
		2974	};
		2975	} else {
		2976	LOG llevInfo, "[ABT] $msg\n";
		2977	LOG llevInfo, "[ABT] [suppressed]\n";
		2978	}
		2979	}
		2980
		2981	# load additional modules
		2982	use cf::pod;
		2983
		2984	END { cf::emergency_save }
2042		2985
2043	1	2986	1
2044		2987

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