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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.121 by root, Tue Jan 2 11:11:52 2007 UTC vs.
Revision 1.262 by root, Sat Apr 28 05:55:55 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 $ref
176		231
177	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
178		233
179	=cut
180
181	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185
186	=item my $guard = cf::guard { BLOCK }
187
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207
208	=item cf::lock_wait $string	234	=item cf::lock_wait $string
209		235
210	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
211		237
212	=item my $lock = cf::lock_acquire $string	238	=item my $lock = cf::lock_acquire $string
213		239
214	Wait until the given lock is available and then acquires it and returns	240	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	242	for example when the coroutine gets canceled), the lock is automatically
217	returned.	243	returned.
218		244
219	Lock names should begin with a unique identifier (for example, find_map	245	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	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.
221		251
222	=cut	252	=cut
223		253
224	our %LOCK;	254	our %LOCK;
225		255
…		…
239	# wait, to be sure we are not locked	269	# wait, to be sure we are not locked
240	lock_wait $key;	270	lock_wait $key;
241		271
242	$LOCK{$key} = [];	272	$LOCK{$key} = [];
243		273
244	cf::guard {	274	Coro::guard {
245	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
247	}	277	}
248	}	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	$guard
		294	}
		295
		296	=item cf::async { BLOCK }
		297
		298	Currently the same as Coro::async_pool, meaning you cannot use
		299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
		301
		302	=cut
		303
		304	BEGIN { *async = \&Coro::async_pool }
249		305
250	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
251		307
252	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
253	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
…		…
267	# this is the main coro, too bad, we have to block	323	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	324	# till the operation succeeds, freezing the server :/
269		325
270	# TODO: use suspend/resume instead	326	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	327	# (but this is cancel-safe)
272	local $FREEZE = 1;	328	my $freeze_guard = freeze_mainloop;
273		329
274	my $busy = 1;	330	my $busy = 1;
275	my @res;	331	my @res;
276		332
277	(Coro::async {	333	(async {
278	@res = eval { $job->() };	334	@res = eval { $job->() };
279	warn $@ if $@;	335	warn $@ if $@;
280	undef $busy;	336	undef $busy;
281	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
282		338
283	while ($busy) {	339	while ($busy) {
284	Coro::cede_notself;	340	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	341	}
287		342
288	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
289	} else {	344	} else {
290	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
291		346
292	$job->()	347	$job->()
293	}	348	}
294	}	349	}
295		350
296	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
297		352
298	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
300		355
301	=cut	356	=cut
302		357
303	sub coro(&) {	358	sub async_ext(&) {
304	my $cb = shift;	359	my $cb = shift;
305		360
306	my $coro; $coro = async {	361	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		362
313	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
315	});	365	});
316	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
317		367
318	$coro	368	$coro
319	}	369	}
320		370
321	sub write_runtime {	371	sub write_runtime {
322	my $runtime = cf::localdir . "/runtime";	372	my $guard = cf::lock_acquire "write_runtime";
		373
		374	my $runtime = "$LOCALDIR/runtime";
323		375
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
325	or return;	377	or return;
326		378
		379	my $value = $cf::RUNTIME + 90 + 10;
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	380	# 10 is the runtime save interval, for a monotonic clock
		381	# 60 allows for the watchdog to kill the server.
		382
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0	383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;	384	and return;
330		385
		386	# always fsync - this file is important
331	aio_fsync $fh	387	aio_fsync $fh
332	and return;	388	and return;
333		389
334	close $fh	390	close $fh
335	or return;	391	or return;
…		…
338	and return;	394	and return;
339		395
340	1	396	1
341	}	397	}
342		398
		399	=item cf::datalog type => key => value, ...
		400
		401	Log a datalog packet of the given type with the given key-value pairs.
		402
		403	=cut
		404
		405	sub datalog($@) {
		406	my ($type, %kv) = @_;
		407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		408	}
		409
343	=back	410	=back
344		411
345	=cut	412	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		413
467	#############################################################################	414	#############################################################################
468		415
469	=head2 ATTACHABLE OBJECTS	416	=head2 ATTACHABLE OBJECTS
470		417
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	543	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	544	our @CB_MAP = ();
598		545
599	my %attachment;	546	my %attachment;
600		547
		548	sub cf::attachable::thawer_merge {
		549	# simply override everything except _meta
		550	local $_[0]{_meta};
		551	%{$_[0]} = %{$_[1]};
		552	}
		553
601	sub _attach_cb($$$$) {	554	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	555	my ($registry, $event, $prio, $cb) = @_;
603		556
604	use sort 'stable';	557	use sort 'stable';
605		558
…		…
776	# object support	729	# object support
777		730
778	sub reattach {	731	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	732	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	733	my ($obj) = @_;
		734
		735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		736
782	my $registry = $obj->registry;	737	my $registry = $obj->registry;
783		738
784	@$registry = ();	739	@$registry = ();
785		740
…		…
832	$filename, length $$rdata, scalar @$objs;	787	$filename, length $$rdata, scalar @$objs;
833		788
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	790	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	792	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	793	close $fh;
839		794
840	if (@$objs) {	795	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	797	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	798	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	799	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	800	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	801	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	802	aio_rename "$filename.pst~", "$filename.pst";
848	}	803	}
849	} else {	804	} else {
850	aio_unlink "$filename.pst";	805	aio_unlink "$filename.pst";
…		…
917	=cut	872	=cut
918		873
919	sub register_extcmd {	874	sub register_extcmd {
920	my ($name, $cb) = @_;	875	my ($name, $cb) = @_;
921		876
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	877	$EXTCMD{$name} = $cb;
926	}	878	}
927		879
928	cf::player->attach (	880	cf::player->attach (
929	on_command => sub {	881	on_command => sub {
930	my ($pl, $name, $params) = @_;	882	my ($pl, $name, $params) = @_;
…		…
943		895
944	my $msg = eval { from_json $buf };	896	my $msg = eval { from_json $buf };
945		897
946	if (ref $msg) {	898	if (ref $msg) {
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	900	if (my %reply = $cb->($pl, $msg)) {
949	$pl->ext_reply ($msg->{msgid}, %reply);	901	$pl->ext_reply ($msg->{msgid}, %reply);
950	}	902	}
951	}	903	}
952	} else {	904	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
955		907
956	cf::override;	908	cf::override;
957	},	909	},
958	);	910	);
959		911
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	912	sub load_extension {
967	my ($path) = @_;	913	my ($path) = @_;
968		914
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
970	my $base = $1;	916	my $base = $1;
971	my $pkg = $1;	917	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;	918	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";	919	$pkg = "ext::$pkg";
974		920
975	warn "loading '$path' into '$pkg'\n";	921	warn "... loading '$path' into '$pkg'\n";
976		922
977	open my $fh, "<:utf8", $path	923	open my $fh, "<:utf8", $path
978	or die "$path: $!";	924	or die "$path: $!";
979		925
980	my $source =	926	my $source =
981	"package $pkg; use strict; use utf8;\n"	927	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"	928	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })	929	. (do { local $/; <$fh> })
984	. "\n};\n1";	930	. "\n};\n1";
985		931
986	eval $source	932	unless (eval $source) {
987	or die $@ ? "$path: $@\n"	933	my $msg = $@ ? "$path: $@\n"
988	: "extension disabled.\n";	934	: "extension disabled.\n";
989		935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
990	push @exts, $pkg;	936	warn $@;
991	$ext_pkg{$base} = $pkg;	937	warn "mandatory extension failed to load, exiting.\n";
992		938	exit 1;
993	# no strict 'refs';	939	}
994	# @{"$pkg\::ISA"} = ext::;	940	die $@;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	941	}
1009		942
1010	# remove commands	943	push @EXTS, $pkg;
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}	944	}
1035		945
1036	sub load_extensions {	946	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {	947	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;	948	next unless -r $ext;
…		…
1042	} or warn "$ext not loaded: $@";	952	} or warn "$ext not loaded: $@";
1043	}	953	}
1044	}	954	}
1045		955
1046	#############################################################################	956	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083		957
1084	=head2 CORE EXTENSIONS	958	=head2 CORE EXTENSIONS
1085		959
1086	Functions and methods that extend core crossfire objects.	960	Functions and methods that extend core crossfire objects.
1087		961
		962	=cut
		963
		964	package cf::player;
		965
		966	use Coro::AIO;
		967
1088	=head3 cf::player	968	=head3 cf::player
1089		969
1090	=over 4	970	=over 4
1091		971
1092	=item cf::player::exists $login	972	=item cf::player::find $login
1093		973
1094	Returns true when the given account exists.	974	Returns the given player object, loading it if necessary (might block).
1095		975
1096	=cut	976	=cut
1097		977
1098	sub cf::player::exists($) {	978	sub playerdir($) {
1099	cf::player::find $_[0]	979	"$PLAYERDIR/"
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	980	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1101	}	981	}
1102		982
		983	sub path($) {
		984	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		985
		986	(playerdir $login) . "/playerdata"
		987	}
		988
		989	sub find_active($) {
		990	$cf::PLAYER{$_[0]}
		991	and $cf::PLAYER{$_[0]}->active
		992	and $cf::PLAYER{$_[0]}
		993	}
		994
		995	sub exists($) {
		996	my ($login) = @_;
		997
		998	$cf::PLAYER{$login}
		999	or cf::sync_job { !aio_stat path $login }
		1000	}
		1001
		1002	sub find($) {
		1003	return $cf::PLAYER{$_[0]} || do {
		1004	my $login = $_[0];
		1005
		1006	my $guard = cf::lock_acquire "user_find:$login";
		1007
		1008	$cf::PLAYER{$_[0]} || do {
		1009	# rename old playerfiles to new ones
		1010	#TODO: remove when no longer required
		1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1014	aio_unlink +(playerdir $login) . "/$login.pl";
		1015
		1016	my $pl = load_pl path $login
		1017	or return;
		1018	$cf::PLAYER{$login} = $pl
		1019	}
		1020	}
		1021	}
		1022
		1023	sub save($) {
		1024	my ($pl) = @_;
		1025
		1026	return if $pl->{deny_save};
		1027
		1028	my $path = path $pl;
		1029	my $guard = cf::lock_acquire "user_save:$path";
		1030
		1031	return if $pl->{deny_save};
		1032
		1033	aio_mkdir playerdir $pl, 0770;
		1034	$pl->{last_save} = $cf::RUNTIME;
		1035
		1036	$pl->save_pl ($path);
		1037	Coro::cede;
		1038	}
		1039
		1040	sub new($) {
		1041	my ($login) = @_;
		1042
		1043	my $self = create;
		1044
		1045	$self->ob->name ($login);
		1046	$self->{deny_save} = 1;
		1047
		1048	$cf::PLAYER{$login} = $self;
		1049
		1050	$self
		1051	}
		1052
		1053	=item $pl->quit_character
		1054
		1055	Nukes the player without looking back. If logged in, the connection will
		1056	be destroyed. May block for a long time.
		1057
		1058	=cut
		1059
		1060	sub quit_character {
		1061	my ($pl) = @_;
		1062
		1063	my $name = $pl->ob->name;
		1064
		1065	$pl->{deny_save} = 1;
		1066	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1067
		1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1069	$pl->deactivate;
		1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1071	$pl->ns->destroy if $pl->ns;
		1072
		1073	my $path = playerdir $pl;
		1074	my $temp = "$path~$cf::RUNTIME~deleting~";
		1075	aio_rename $path, $temp;
		1076	delete $cf::PLAYER{$pl->ob->name};
		1077	$pl->destroy;
		1078
		1079	my $prefix = qr<^~\Q$name\E/>;
		1080
		1081	# nuke player maps
		1082	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1083
		1084	IO::AIO::aio_rmtree $temp;
		1085	}
		1086
		1087	=item $pl->kick
		1088
		1089	Kicks a player out of the game. This destroys the connection.
		1090
		1091	=cut
		1092
		1093	sub kick {
		1094	my ($pl, $kicker) = @_;
		1095
		1096	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1097	$pl->killer ("kicked");
		1098	$pl->ns->destroy;
		1099	}
		1100
		1101	=item cf::player::list_logins
		1102
		1103	Returns am arrayref of all valid playernames in the system, can take a
		1104	while and may block, so not sync_job-capable, ever.
		1105
		1106	=cut
		1107
		1108	sub list_logins {
		1109	my $dirs = aio_readdir $PLAYERDIR
		1110	or return [];
		1111
		1112	my @logins;
		1113
		1114	for my $login (@$dirs) {
		1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1116	aio_read $fh, 0, 512, my $buf, 0 or next;
		1117	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1118
		1119	utf8::decode $login;
		1120	push @logins, $login;
		1121	}
		1122
		1123	\@logins
		1124	}
		1125
		1126	=item $player->maps
		1127
		1128	Returns an arrayref of map paths that are private for this
		1129	player. May block.
		1130
		1131	=cut
		1132
		1133	sub maps($) {
		1134	my ($pl) = @_;
		1135
		1136	$pl = ref $pl ? $pl->ob->name : $pl;
		1137
		1138	my $files = aio_readdir playerdir $pl
		1139	or return;
		1140
		1141	my @paths;
		1142
		1143	for (@$files) {
		1144	utf8::decode $_;
		1145	next if /\.(?:pl|pst)$/;
		1146	next unless /^$PATH_SEP/o;
		1147
		1148	push @paths, cf::map::normalise "~$pl/$_";
		1149	}
		1150
		1151	\@paths
		1152	}
		1153
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)	1154	=item $player->ext_reply ($msgid, %msg)
1104		1155
1105	Sends an ext reply to the player.	1156	Sends an ext reply to the player.
1106		1157
1107	=cut	1158	=cut
1108		1159
1109	sub cf::player::ext_reply($$$%) {	1160	sub ext_reply($$%) {
1110	my ($self, $id, %msg) = @_;	1161	my ($self, $id, %msg) = @_;
1111		1162
1112	$msg{msgid} = $id;	1163	$msg{msgid} = $id;
1113		1164
1114	$self->send ("ext " . to_json \%msg);	1165	$self->send ("ext " . cf::to_json \%msg);
		1166	}
		1167
		1168	=item $player->ext_event ($type, %msg)
		1169
		1170	Sends an ext event to the client.
		1171
		1172	=cut
		1173
		1174	sub ext_event($$%) {
		1175	my ($self, $type, %msg) = @_;
		1176
		1177	$self->ns->ext_event ($type, %msg);
		1178	}
		1179
		1180	=head3 cf::region
		1181
		1182	=over 4
		1183
		1184	=cut
		1185
		1186	package cf::region;
		1187
		1188	=item cf::region::find_by_path $path
		1189
		1190	Tries to decuce the probable region for a map knowing only its path.
		1191
		1192	=cut
		1193
		1194	sub find_by_path($) {
		1195	my ($path) = @_;
		1196
		1197	my ($match, $specificity);
		1198
		1199	for my $region (list) {
		1200	if ($region->match && $path =~ $region->match) {
		1201	($match, $specificity) = ($region, $region->specificity)
		1202	if $region->specificity > $specificity;
		1203	}
		1204	}
		1205
		1206	$match
1115	}	1207	}
1116		1208
1117	=back	1209	=back
1118
1119		1210
1120	=head3 cf::map	1211	=head3 cf::map
1121		1212
1122	=over 4	1213	=over 4
1123		1214
…		…
1126	package cf::map;	1217	package cf::map;
1127		1218
1128	use Fcntl;	1219	use Fcntl;
1129	use Coro::AIO;	1220	use Coro::AIO;
1130		1221
		1222	use overload
		1223	'""' => \&as_string,
		1224	fallback => 1;
		1225
1131	our $MAX_RESET = 7200;	1226	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1227	our $DEFAULT_RESET = 3000;
1133		1228
1134	sub generate_random_map {	1229	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1230	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1231	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1232	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1236	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1237	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1240	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1241	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1242	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1243	(cf::region::find $rmp->{region}), $rmp->{custom}
		1244	)
		1245	}
		1246
		1247	=item cf::map->register ($regex, $prio)
		1248
		1249	Register a handler for the map path matching the given regex at the
		1250	givne priority (higher is better, built-in handlers have priority 0, the
		1251	default).
		1252
		1253	=cut
		1254
		1255	sub register {
		1256	my (undef, $regex, $prio) = @_;
		1257	my $pkg = caller;
		1258
		1259	no strict;
		1260	push @{"$pkg\::ISA"}, __PACKAGE__;
		1261
		1262	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1263	}
		1264
		1265	# also paths starting with '/'
		1266	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1267
		1268	sub thawer_merge {
		1269	my ($self, $merge) = @_;
		1270
		1271	# we have to keep some variables in memory intact
		1272	local $self->{path};
		1273	local $self->{load_path};
		1274	local $self->{deny_save};
		1275	local $self->{deny_reset};
		1276
		1277	$self->SUPER::thawer_merge ($merge);
		1278	}
		1279
		1280	sub normalise {
		1281	my ($path, $base) = @_;
		1282
		1283	$path = "$path"; # make sure its a string
		1284
		1285	$path =~ s/\.map$//;
		1286
		1287	# map plan:
		1288	#
		1289	# /! non-realised random map exit (special hack!)
		1290	# {... are special paths that are not being touched
		1291	# ?xxx/... are special absolute paths
		1292	# ?random/... random maps
		1293	# /... normal maps
		1294	# ~user/... per-player map of a specific user
		1295
		1296	$path =~ s/$PATH_SEP/\//go;
		1297
		1298	# treat it as relative path if it starts with
		1299	# something that looks reasonable
		1300	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1301	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1302
		1303	$base =~ s{[^/]+/?$}{};
		1304	$path = "$base/$path";
		1305	}
		1306
		1307	for ($path) {
		1308	redo if s{//}{/};
		1309	redo if s{/\.?/}{/};
		1310	redo if s{/[^/]+/\.\./}{/};
		1311	}
		1312
		1313	$path
		1314	}
		1315
		1316	sub new_from_path {
		1317	my (undef, $path, $base) = @_;
		1318
		1319	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1320
		1321	$path = normalise $path, $base;
		1322
		1323	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1324	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1325	my $self = bless cf::map::new, $pkg;
		1326	$self->{path} = $path; $self->path ($path);
		1327	$self->init; # pass $1 etc.
		1328	return $self;
		1329	}
		1330	}
		1331
		1332	Carp::carp "unable to resolve path '$path' (base '$base').";
		1333	()
		1334	}
		1335
		1336	sub init {
		1337	my ($self) = @_;
		1338
		1339	$self
		1340	}
		1341
		1342	sub as_string {
		1343	my ($self) = @_;
		1344
		1345	"$self->{path}"
		1346	}
		1347
		1348	# the displayed name, this is a one way mapping
		1349	sub visible_name {
		1350	&as_string
		1351	}
		1352
		1353	# the original (read-only) location
		1354	sub load_path {
		1355	my ($self) = @_;
		1356
		1357	"$MAPDIR/$self->{path}.map"
		1358	}
		1359
		1360	# the temporary/swap location
		1361	sub save_path {
		1362	my ($self) = @_;
		1363
		1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1365	"$TMPDIR/$path.map"
		1366	}
		1367
		1368	# the unique path, undef == no special unique path
		1369	sub uniq_path {
		1370	my ($self) = @_;
		1371
		1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1373	"$UNIQUEDIR/$path"
1151	}	1374	}
1152		1375
1153	# and all this just because we cannot iterate over	1376	# and all this just because we cannot iterate over
1154	# all maps in C++...	1377	# all maps in C++...
1155	sub change_all_map_light {	1378	sub change_all_map_light {
1156	my ($change) = @_;	1379	my ($change) = @_;
1157		1380
1158	$_->change_map_light ($change) for values %cf::MAP;	1381	$_->change_map_light ($change)
		1382	for grep $_->outdoor, values %cf::MAP;
1159	}	1383	}
1160		1384
		1385	sub unlink_save {
		1386	my ($self) = @_;
		1387
		1388	utf8::encode (my $save = $self->save_path);
		1389	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1390	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1391	}
		1392
1161	sub try_load_header($) {	1393	sub load_header_from($) {
1162	my ($path) = @_;	1394	my ($self, $path) = @_;
1163		1395
1164	utf8::encode $path;	1396	utf8::encode $path;
1165	aio_open $path, O_RDONLY, 0	1397	#aio_open $path, O_RDONLY, 0
		1398	# or return;
		1399
		1400	$self->_load_header ($path)
1166	or return;	1401	or return;
1167		1402
1168	my $map = cf::map::new	1403	$self->{load_path} = $path;
		1404
		1405	1
		1406	}
		1407
		1408	sub load_header_orig {
		1409	my ($self) = @_;
		1410
		1411	$self->load_header_from ($self->load_path)
		1412	}
		1413
		1414	sub load_header_temp {
		1415	my ($self) = @_;
		1416
		1417	$self->load_header_from ($self->save_path)
		1418	}
		1419
		1420	sub prepare_temp {
		1421	my ($self) = @_;
		1422
		1423	$self->last_access ((delete $self->{last_access})
		1424	|| $cf::RUNTIME); #d#
		1425	# safety
		1426	$self->{instantiate_time} = $cf::RUNTIME
		1427	if $self->{instantiate_time} > $cf::RUNTIME;
		1428	}
		1429
		1430	sub prepare_orig {
		1431	my ($self) = @_;
		1432
		1433	$self->{load_original} = 1;
		1434	$self->{instantiate_time} = $cf::RUNTIME;
		1435	$self->last_access ($cf::RUNTIME);
		1436	$self->instantiate;
		1437	}
		1438
		1439	sub load_header {
		1440	my ($self) = @_;
		1441
		1442	if ($self->load_header_temp) {
		1443	$self->prepare_temp;
		1444	} else {
		1445	$self->load_header_orig
1169	or return;	1446	or return;
		1447	$self->prepare_orig;
		1448	}
1170		1449
1171	$map->load_header ($path)	1450	$self->default_region (cf::region::find_by_path $self->{path})
1172	or return;	1451	unless $self->default_region;
1173		1452
1174	$map->{load_path} = $path;	1453	1
1175
1176	$map
1177	}	1454	}
1178		1455
		1456	sub find;
1179	sub find_map {	1457	sub find {
1180	my ($path, $origin) = @_;	1458	my ($path, $origin) = @_;
1181		1459
1182	#warn "find_map<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1460	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1461
1187	cf::lock_wait "map_find:$key";	1462	cf::lock_wait "map_find:$path";
1188		1463
1189	$cf::MAP{$key} || do {	1464	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1465	my $guard = cf::lock_acquire "map_find:$path";
1191		1466	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	if ($map) {
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1467	or return;
1207		1468
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->instantiate;
1211
1212	# per-player maps become, after loading, normal maps
1213	$map->per_player (0) if $path->{user_rel};
1214	}
1215
1216	$map->path ($key);
1217	$map->{path} = $path;
1218	$map->{last_save} = $cf::RUNTIME;	1469	$map->{last_save} = $cf::RUNTIME;
1219	$map->last_access ($cf::RUNTIME);
1220		1470
1221	if ($map->should_reset) {	1471	$map->load_header
		1472	or return;
		1473
		1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1475	# doing this can freeze the server in a sync job, obviously
		1476	#$cf::WAIT_FOR_TICK->wait;
1222	$map->reset;	1477	$map->reset;
1223	$map = find_map $path;	1478	undef $guard;
		1479	return find $path;
1224	}	1480	}
1225		1481
1226	$cf::MAP{$key} = $map	1482	$cf::MAP{$path} = $map
1227	}	1483	}
1228	}	1484	}
		1485
		1486	sub pre_load { }
		1487	sub post_load { }
1229		1488
1230	sub load {	1489	sub load {
1231	my ($self) = @_;	1490	my ($self) = @_;
1232		1491
		1492	local $self->{deny_reset} = 1; # loading can take a long time
		1493
1233	my $path = $self->{path};	1494	my $path = $self->{path};
		1495
		1496	{
1234	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1497	my $guard = cf::lock_acquire "map_load:$path";
1235		1498
1236	return if $self->in_memory != cf::MAP_SWAPPED;	1499	return if $self->in_memory != cf::MAP_SWAPPED;
1237		1500
1238	$self->in_memory (cf::MAP_LOADING);	1501	$self->in_memory (cf::MAP_LOADING);
1239		1502
1240	$self->alloc;	1503	$self->alloc;
		1504
		1505	$self->pre_load;
		1506	Coro::cede;
		1507
1241	$self->load_objects ($self->{load_path}, 1)	1508	$self->_load_objects ($self->{load_path}, 1)
1242	or return;	1509	or return;
1243		1510
1244	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1245	if delete $self->{load_original};	1512	if delete $self->{load_original};
1246		1513
1247	if (my $uniq = $path->uniq_path) {	1514	if (my $uniq = $self->uniq_path) {
1248	utf8::encode $uniq;	1515	utf8::encode $uniq;
1249	if (aio_open $uniq, O_RDONLY, 0) {	1516	if (aio_open $uniq, O_RDONLY, 0) {
1250	$self->clear_unique_items;	1517	$self->clear_unique_items;
1251	$self->load_objects ($uniq, 0);	1518	$self->_load_objects ($uniq, 0);
1252	}	1519	}
1253	}	1520	}
1254		1521
		1522	Coro::cede;
1255	# now do the right thing for maps	1523	# now do the right thing for maps
1256	$self->link_multipart_objects;	1524	$self->link_multipart_objects;
1257
1258	if ($self->{path}->is_style_map) {
1259	$self->{deny_save} = 1;
1260	$self->{deny_reset} = 1;
1261	} else {
1262	$self->fix_auto_apply;
1263	$self->decay_objects;
1264	$self->update_buttons;
1265	$self->set_darkness_map;
1266	$self->difficulty ($self->estimate_difficulty)	1525	$self->difficulty ($self->estimate_difficulty)
1267	unless $self->difficulty;	1526	unless $self->difficulty;
		1527	Coro::cede;
		1528
		1529	unless ($self->{deny_activate}) {
		1530	$self->decay_objects;
		1531	$self->fix_auto_apply;
		1532	$self->update_buttons;
		1533	Coro::cede;
		1534	$self->set_darkness_map;
		1535	Coro::cede;
1268	$self->activate;	1536	$self->activate;
1269	}	1537	}
1270		1538
1271	$self->in_memory (cf::MAP_IN_MEMORY);	1539	$self->in_memory (cf::MAP_IN_MEMORY);
1272	}	1540	}
1273		1541
1274	sub load_map_sync {	1542	$self->post_load;
		1543	}
		1544
		1545	sub customise_for {
		1546	my ($self, $ob) = @_;
		1547
		1548	return find "~" . $ob->name . "/" . $self->{path}
		1549	if $self->per_player;
		1550
		1551	$self
		1552	}
		1553
		1554	# find and load all maps in the 3x3 area around a map
		1555	sub load_diag {
		1556	my ($map) = @_;
		1557
		1558	my @diag; # diagonal neighbours
		1559
		1560	for (0 .. 3) {
		1561	my $neigh = $map->tile_path ($_)
		1562	or next;
		1563	$neigh = find $neigh, $map
		1564	or next;
		1565	$neigh->load;
		1566
		1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1569	}
		1570
		1571	for (@diag) {
		1572	my $neigh = find @$_
		1573	or next;
		1574	$neigh->load;
		1575	}
		1576	}
		1577
		1578	sub find_sync {
1275	my ($path, $origin) = @_;	1579	my ($path, $origin) = @_;
1276		1580
1277	#warn "load_map_sync<$path, $origin>\n";#d#	1581	cf::sync_job { find $path, $origin }
		1582	}
1278		1583
1279	cf::sync_job {	1584	sub do_load_sync {
1280	my $map = cf::map::find_map $path, $origin	1585	my ($map) = @_;
1281	or return;	1586
		1587	cf::sync_job { $map->load };
		1588	}
		1589
		1590	our %MAP_PREFETCH;
		1591	our $MAP_PREFETCHER = undef;
		1592
		1593	sub find_async {
		1594	my ($path, $origin) = @_;
		1595
		1596	$path = normalise $path, $origin && $origin->{path};
		1597
		1598	if (my $map = $cf::MAP{$path}) {
		1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1600	}
		1601
		1602	undef $MAP_PREFETCH{$path};
		1603	$MAP_PREFETCHER ||= cf::async {
		1604	while (%MAP_PREFETCH) {
		1605	for my $path (keys %MAP_PREFETCH) {
		1606	my $map = find $path
		1607	or next;
1282	$map->load;	1608	$map->load;
1283	$map	1609
		1610	delete $MAP_PREFETCH{$path};
		1611	}
		1612	}
		1613	undef $MAP_PREFETCHER;
1284	}	1614	};
		1615	$MAP_PREFETCHER->prio (6);
		1616
		1617	()
1285	}	1618	}
1286		1619
1287	sub save {	1620	sub save {
1288	my ($self) = @_;	1621	my ($self) = @_;
1289		1622
		1623	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1624
1290	$self->{last_save} = $cf::RUNTIME;	1625	$self->{last_save} = $cf::RUNTIME;
1291		1626
1292	return unless $self->dirty;	1627	return unless $self->dirty;
1293		1628
1294	my $save = $self->{path}->save_path; utf8::encode $save;	1629	my $save = $self->save_path; utf8::encode $save;
1295	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1630	my $uniq = $self->uniq_path; utf8::encode $uniq;
1296		1631
1297	$self->{load_path} = $save;	1632	$self->{load_path} = $save;
1298		1633
1299	return if $self->{deny_save};	1634	return if $self->{deny_save};
1300		1635
		1636	local $self->{last_access} = $self->last_access;#d#
		1637
		1638	cf::async {
		1639	$_->contr->save for $self->players;
		1640	};
		1641
1301	if ($uniq) {	1642	if ($uniq) {
1302	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1303	$self->save_objects ($uniq, cf::IO_UNIQUES);	1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1304	} else {	1645	} else {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1306	}	1647	}
1307	}	1648	}
1308		1649
1309	sub swap_out {	1650	sub swap_out {
1310	my ($self) = @_;	1651	my ($self) = @_;
		1652
		1653	# save first because save cedes
		1654	$self->save;
		1655
		1656	my $lock = cf::lock_acquire "map_data:" . $self->path;
1311		1657
1312	return if $self->players;	1658	return if $self->players;
1313	return if $self->in_memory != cf::MAP_IN_MEMORY;	1659	return if $self->in_memory != cf::MAP_IN_MEMORY;
1314	return if $self->{deny_save};	1660	return if $self->{deny_save};
1315		1661
1316	$self->save;
1317	$self->clear;	1662	$self->clear;
1318	$self->in_memory (cf::MAP_SWAPPED);	1663	$self->in_memory (cf::MAP_SWAPPED);
1319	}	1664	}
1320		1665
1321	sub reset_at {	1666	sub reset_at {
1322	my ($self) = @_;	1667	my ($self) = @_;
1323		1668
1324	# TODO: safety, remove and allow resettable per-player maps	1669	# TODO: safety, remove and allow resettable per-player maps
1325	return 1e99 if $self->{path}{user_rel};	1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1326	return 1e99 if $self->{deny_reset};	1671	return 1e99 if $self->{deny_reset};
1327		1672
1328	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1329	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1330		1675
…		…
1335	my ($self) = @_;	1680	my ($self) = @_;
1336		1681
1337	$self->reset_at <= $cf::RUNTIME	1682	$self->reset_at <= $cf::RUNTIME
1338	}	1683	}
1339		1684
1340	sub unlink_save {
1341	my ($self) = @_;
1342
1343	utf8::encode (my $save = $self->{path}->save_path);
1344	aioreq_pri 3; IO::AIO::aio_unlink $save;
1345	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1346	}
1347
1348	sub rename {
1349	my ($self, $new_path) = @_;
1350
1351	$self->unlink_save;
1352
1353	delete $cf::MAP{$self->path};
1354	$self->{path} = new cf::path $new_path;
1355	$self->path ($self->{path}->as_string);
1356	$cf::MAP{$self->path} = $self;
1357
1358	$self->save;
1359	}
1360
1361	sub reset {	1685	sub reset {
1362	my ($self) = @_;	1686	my ($self) = @_;
1363		1687
		1688	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1689
1364	return if $self->players;	1690	return if $self->players;
1365	return if $self->{path}{user_rel};#d#	1691	return if $self->isa ("ext::map_per_player");#d#
1366		1692
1367	warn "resetting map ", $self->path;#d#	1693	warn "resetting map ", $self->path;#d#
1368		1694
		1695	$self->in_memory (cf::MAP_SWAPPED);
		1696
		1697	# need to save uniques path
		1698	unless ($self->{deny_save}) {
		1699	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1700
		1701	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1702	if $uniq;
		1703	}
		1704
1369	delete $cf::MAP{$self->path};	1705	delete $cf::MAP{$self->path};
		1706
		1707	$self->clear;
1370		1708
1371	$_->clear_links_to ($self) for values %cf::MAP;	1709	$_->clear_links_to ($self) for values %cf::MAP;
1372		1710
1373	$self->unlink_save;	1711	$self->unlink_save;
1374	$self->destroy;	1712	$self->destroy;
…		…
1377	my $nuke_counter = "aaaa";	1715	my $nuke_counter = "aaaa";
1378		1716
1379	sub nuke {	1717	sub nuke {
1380	my ($self) = @_;	1718	my ($self) = @_;
1381		1719
		1720	delete $cf::MAP{$self->path};
		1721
		1722	$self->unlink_save;
		1723
		1724	bless $self, "cf::map";
		1725	delete $self->{deny_reset};
1382	$self->{deny_save} = 1;	1726	$self->{deny_save} = 1;
1383	$self->reset_timeout (1);	1727	$self->reset_timeout (1);
1384	$self->rename ("{nuke}/" . ($nuke_counter++));	1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1729
		1730	$cf::MAP{$self->path} = $self;
		1731
1385	$self->reset; # polite request, might not happen	1732	$self->reset; # polite request, might not happen
1386	}	1733	}
1387		1734
1388	sub customise_for {	1735	=item cf::map::unique_maps
1389	my ($map, $ob) = @_;
1390		1736
1391	if ($map->per_player) {	1737	Returns an arrayref of paths of all shared maps that have
1392	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1738	instantiated unique items. May block.
1393	}
1394		1739
1395	$map	1740	=cut
1396	}
1397		1741
1398	sub emergency_save {	1742	sub unique_maps() {
1399	local $cf::FREEZE = 1;	1743	my $files = aio_readdir $UNIQUEDIR
		1744	or return;
1400		1745
1401	warn "enter emergency map save\n";	1746	my @paths;
1402		1747
1403	cf::sync_job {	1748	for (@$files) {
1404	warn "begin emergency map save\n";	1749	utf8::decode $_;
1405	$_->save for values %cf::MAP;	1750	next if /\.pst$/;
		1751	next unless /^$PATH_SEP/o;
		1752
		1753	push @paths, cf::map::normalise $_;
1406	};	1754	}
1407		1755
1408	warn "end emergency map save\n";	1756	\@paths
1409	}	1757	}
1410		1758
1411	package cf;	1759	package cf;
1412		1760
1413	=back	1761	=back
1414		1762
		1763	=head3 cf::object
		1764
		1765	=cut
		1766
		1767	package cf::object;
		1768
		1769	=over 4
		1770
		1771	=item $ob->inv_recursive
		1772
		1773	Returns the inventory of the object _and_ their inventories, recursively.
		1774
		1775	=cut
		1776
		1777	sub inv_recursive_;
		1778	sub inv_recursive_ {
		1779	map { $_, inv_recursive_ $_->inv } @_
		1780	}
		1781
		1782	sub inv_recursive {
		1783	inv_recursive_ inv $_[0]
		1784	}
		1785
		1786	package cf;
		1787
		1788	=back
1415		1789
1416	=head3 cf::object::player	1790	=head3 cf::object::player
1417		1791
1418	=over 4	1792	=over 4
1419		1793
…		…
1459		1833
1460	=item $player_object->enter_link	1834	=item $player_object->enter_link
1461		1835
1462	Freezes the player and moves him/her to a special map (C<{link}>).	1836	Freezes the player and moves him/her to a special map (C<{link}>).
1463		1837
1464	The player should be reaosnably safe there for short amounts of time. You	1838	The player should be reasonably safe there for short amounts of time. You
1465	I<MUST> call C<leave_link> as soon as possible, though.	1839	I<MUST> call C<leave_link> as soon as possible, though.
1466		1840
		1841	Will never block.
		1842
1467	=item $player_object->leave_link ($map, $x, $y)	1843	=item $player_object->leave_link ($map, $x, $y)
1468		1844
1469	Moves the player out of the specila link map onto the given map. If the	1845	Moves the player out of the special C<{link}> map onto the specified
1470	map is not valid (or omitted), the player will be moved back to the	1846	map. If the map is not valid (or omitted), the player will be moved back
1471	location he/she was before the call to C<enter_link>, or, if that fails,	1847	to the location he/she was before the call to C<enter_link>, or, if that
1472	to the emergency map position.	1848	fails, to the emergency map position.
1473		1849
1474	Might block.	1850	Might block.
1475		1851
1476	=cut	1852	=cut
		1853
		1854	sub link_map {
		1855	unless ($LINK_MAP) {
		1856	$LINK_MAP = cf::map::find "{link}"
		1857	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1858	$LINK_MAP->load;
		1859	}
		1860
		1861	$LINK_MAP
		1862	}
1477		1863
1478	sub cf::object::player::enter_link {	1864	sub cf::object::player::enter_link {
1479	my ($self) = @_;	1865	my ($self) = @_;
1480		1866
1481	$self->deactivate_recursive;	1867	$self->deactivate_recursive;
1482		1868
1483	return if $self->map == $LINK_MAP;	1869	return if UNIVERSAL::isa $self->map, "ext::map_link";
1484		1870
1485	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1871	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1486	if $self->map;	1872	if $self->map;
1487		1873
1488	$self->enter_map ($LINK_MAP, 20, 20);	1874	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1489	}	1875	}
1490		1876
1491	sub cf::object::player::leave_link {	1877	sub cf::object::player::leave_link {
1492	my ($self, $map, $x, $y) = @_;	1878	my ($self, $map, $x, $y) = @_;
1493		1879
1494	my $link_pos = delete $self->{_link_pos};	1880	my $link_pos = delete $self->{_link_pos};
1495		1881
1496	unless ($map) {	1882	unless ($map) {
1497	# restore original map position	1883	# restore original map position
1498	($map, $x, $y) = @{ $link_pos || [] };	1884	($map, $x, $y) = @{ $link_pos || [] };
1499	$map = cf::map::find_map $map;	1885	$map = cf::map::find $map;
1500		1886
1501	unless ($map) {	1887	unless ($map) {
1502	($map, $x, $y) = @$EMERGENCY_POSITION;	1888	($map, $x, $y) = @$EMERGENCY_POSITION;
1503	$map = cf::map::find_map $map	1889	$map = cf::map::find $map
1504	or die "FATAL: cannot load emergency map\n";	1890	or die "FATAL: cannot load emergency map\n";
1505	}	1891	}
1506	}	1892	}
1507		1893
1508	($x, $y) = (-1, -1)	1894	($x, $y) = (-1, -1)
…		…
1511	# use -1 or undef as default coordinates, not 0, 0	1897	# use -1 or undef as default coordinates, not 0, 0
1512	($x, $y) = ($map->enter_x, $map->enter_y)	1898	($x, $y) = ($map->enter_x, $map->enter_y)
1513	if $x <=0 && $y <= 0;	1899	if $x <=0 && $y <= 0;
1514		1900
1515	$map->load;	1901	$map->load;
		1902	$map->load_diag;
1516		1903
		1904	return unless $self->contr->active;
1517	$self->activate_recursive;	1905	$self->activate_recursive;
		1906
		1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1518	$self->enter_map ($map, $x, $y);	1908	$self->enter_map ($map, $x, $y);
1519	}	1909	}
1520		1910
1521	cf::player->attach (	1911	cf::player->attach (
1522	on_logout => sub {	1912	on_logout => sub {
…		…
1534		1924
1535	# try to abort aborted map switching on player login :)	1925	# try to abort aborted map switching on player login :)
1536	# should happen only on crashes	1926	# should happen only on crashes
1537	if ($pl->ob->{_link_pos}) {	1927	if ($pl->ob->{_link_pos}) {
1538	$pl->ob->enter_link;	1928	$pl->ob->enter_link;
1539	Coro::async {	1929	(async {
		1930	$pl->ob->reply (undef,
		1931	"There was an internal problem at your last logout, "
		1932	. "the server will try to bring you to your intended destination in a second.",
		1933	cf::NDI_RED);
1540	# we need this sleep as the login has a concurrent enter_exit running	1934	# we need this sleep as the login has a concurrent enter_exit running
1541	# and this sleep increases chances of the player not ending up in scorn	1935	# and this sleep increases chances of the player not ending up in scorn
1542	Coro::Timer::sleep 1;	1936	Coro::Timer::sleep 1;
1543	$pl->ob->leave_link;	1937	$pl->ob->leave_link;
1544	};	1938	})->prio (2);
1545	}	1939	}
1546	},	1940	},
1547	);	1941	);
1548		1942
1549	=item $player_object->goto_map ($path, $x, $y)	1943	=item $player_object->goto ($path, $x, $y)
1550		1944
1551	=cut	1945	=cut
1552		1946
1553	sub cf::object::player::goto_map {	1947	sub cf::object::player::goto {
1554	my ($self, $path, $x, $y) = @_;	1948	my ($self, $path, $x, $y) = @_;
1555		1949
1556	$self->enter_link;	1950	$self->enter_link;
1557		1951
1558	(Coro::async {	1952	(async {
1559	$path = new cf::path $path;	1953	my $map = eval {
1560
1561	my $map = cf::map::find_map $path->as_string;	1954	my $map = cf::map::find $path;
1562	$map = $map->customise_for ($self) if $map;	1955	$map = $map->customise_for ($self) if $map;
1563		1956	$map
1564	# warn "entering ", $map->path, " at ($x, $y)\n"	1957	} or
1565	# if $map;
1566
1567	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1568		1959
1569	$self->leave_link ($map, $x, $y);	1960	$self->leave_link ($map, $x, $y);
1570	})->prio (1);	1961	})->prio (1);
1571	}	1962	}
1572		1963
…		…
1576		1967
1577	sub parse_random_map_params {	1968	sub parse_random_map_params {
1578	my ($spec) = @_;	1969	my ($spec) = @_;
1579		1970
1580	my $rmp = { # defaults	1971	my $rmp = { # defaults
1581	xsize => 10,	1972	xsize => (cf::rndm 15, 40),
1582	ysize => 10,	1973	ysize => (cf::rndm 15, 40),
		1974	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1975	#layout => string,
1583	};	1976	};
1584		1977
1585	for (split /\n/, $spec) {	1978	for (split /\n/, $spec) {
1586	my ($k, $v) = split /\s+/, $_, 2;	1979	my ($k, $v) = split /\s+/, $_, 2;
1587		1980
…		…
1591	$rmp	1984	$rmp
1592	}	1985	}
1593		1986
1594	sub prepare_random_map {	1987	sub prepare_random_map {
1595	my ($exit) = @_;	1988	my ($exit) = @_;
		1989
		1990	my $guard = cf::lock_acquire "exit_prepare:$exit";
1596		1991
1597	# all this does is basically replace the /! path by	1992	# all this does is basically replace the /! path by
1598	# a new random map path (?random/...) with a seed	1993	# a new random map path (?random/...) with a seed
1599	# that depends on the exit object	1994	# that depends on the exit object
1600		1995
1601	my $rmp = parse_random_map_params $exit->msg;	1996	my $rmp = parse_random_map_params $exit->msg;
1602		1997
1603	if ($exit->map) {	1998	if ($exit->map) {
1604	$rmp->{region} = $exit->map->region_name;	1999	$rmp->{region} = $exit->region->name;
1605	$rmp->{origin_map} = $exit->map->path;	2000	$rmp->{origin_map} = $exit->map->path;
1606	$rmp->{origin_x} = $exit->x;	2001	$rmp->{origin_x} = $exit->x;
1607	$rmp->{origin_y} = $exit->y;	2002	$rmp->{origin_y} = $exit->y;
1608	}	2003	}
1609		2004
1610	$rmp->{random_seed} ||= $exit->random_seed;	2005	$rmp->{random_seed} ||= $exit->random_seed;
1611		2006
1612	my $data = cf::to_json $rmp;	2007	my $data = cf::to_json $rmp;
1613	my $md5 = Digest::MD5::md5_hex $data;	2008	my $md5 = Digest::MD5::md5_hex $data;
		2009	my $meta = "$RANDOMDIR/$md5.meta";
1614		2010
1615	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2011	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1616	aio_write $fh, 0, (length $data), $data, 0;	2012	aio_write $fh, 0, (length $data), $data, 0;
		2013	undef $fh;
		2014	aio_rename "$meta~", $meta;
1617		2015
1618	$exit->slaying ("?random/$md5");	2016	$exit->slaying ("?random/$md5");
1619	$exit->msg (undef);	2017	$exit->msg (undef);
1620	}	2018	}
1621	}	2019	}
…		…
1623	sub cf::object::player::enter_exit {	2021	sub cf::object::player::enter_exit {
1624	my ($self, $exit) = @_;	2022	my ($self, $exit) = @_;
1625		2023
1626	return unless $self->type == cf::PLAYER;	2024	return unless $self->type == cf::PLAYER;
1627		2025
		2026	if ($exit->slaying eq "/!") {
		2027	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2028	# the problem is that $exit might not survive long enough
		2029	# so it needs to be done right now, right here
		2030	cf::sync_job { prepare_random_map $exit };
		2031	}
		2032
		2033	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2034	my $hp = $exit->stats->hp;
		2035	my $sp = $exit->stats->sp;
		2036
1628	$self->enter_link;	2037	$self->enter_link;
1629		2038
1630	(Coro::async {	2039	(async {
		2040	$self->deactivate_recursive; # just to be sure
1631	unless (eval {	2041	unless (eval {
1632		2042	$self->goto ($slaying, $hp, $sp);
1633	prepare_random_map $exit
1634	if $exit->slaying eq "/!";
1635
1636	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1637	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1638		2043
1639	1;	2044	1;
1640	}) {	2045	}) {
1641	$self->message ("Something went wrong deep within the crossfire server. "	2046	$self->message ("Something went wrong deep within the crossfire server. "
1642	. "I'll try to bring you back to the map you were before. "	2047	. "I'll try to bring you back to the map you were before. "
1643	. "Please report this to the dungeon master",	2048	. "Please report this to the dungeon master!",
1644	cf::NDI_UNIQUE | cf::NDI_RED);	2049	cf::NDI_UNIQUE | cf::NDI_RED);
1645		2050
1646	warn "ERROR in enter_exit: $@";	2051	warn "ERROR in enter_exit: $@";
1647	$self->leave_link;	2052	$self->leave_link;
1648	}	2053	}
1649	})->prio (1);	2054	})->prio (1);
…		…
1662		2067
1663	sub cf::client::send_drawinfo {	2068	sub cf::client::send_drawinfo {
1664	my ($self, $text, $flags) = @_;	2069	my ($self, $text, $flags) = @_;
1665		2070
1666	utf8::encode $text;	2071	utf8::encode $text;
1667	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2072	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1668	}	2073	}
1669		2074
		2075	=item $client->ext_event ($type, %msg)
		2076
		2077	Sends an exti event to the client.
		2078
		2079	=cut
		2080
		2081	sub cf::client::ext_event($$%) {
		2082	my ($self, $type, %msg) = @_;
		2083
		2084	$msg{msgtype} = "event_$type";
		2085	$self->send_packet ("ext " . cf::to_json \%msg);
		2086	}
1670		2087
1671	=item $success = $client->query ($flags, "text", \&cb)	2088	=item $success = $client->query ($flags, "text", \&cb)
1672		2089
1673	Queues a query to the client, calling the given callback with	2090	Queues a query to the client, calling the given callback with
1674	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2091	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1699	on_reply => sub {	2116	on_reply => sub {
1700	my ($ns, $msg) = @_;	2117	my ($ns, $msg) = @_;
1701		2118
1702	# this weird shuffling is so that direct followup queries	2119	# this weird shuffling is so that direct followup queries
1703	# get handled first	2120	# get handled first
1704	my $queue = delete $ns->{query_queue};	2121	my $queue = delete $ns->{query_queue}
		2122	or return; # be conservative, not sure how that can happen, but we saw a crash here
1705		2123
1706	(shift @$queue)->[1]->($msg);	2124	(shift @$queue)->[1]->($msg);
		2125	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1707		2126
1708	push @{ $ns->{query_queue} }, @$queue;	2127	push @{ $ns->{query_queue} }, @$queue;
1709		2128
1710	if (@{ $ns->{query_queue} } == @$queue) {	2129	if (@{ $ns->{query_queue} } == @$queue) {
1711	if (@$queue) {	2130	if (@$queue) {
…		…
1715	}	2134	}
1716	}	2135	}
1717	},	2136	},
1718	);	2137	);
1719		2138
1720	=item $client->coro (\&cb)	2139	=item $client->async (\&cb)
1721		2140
1722	Create a new coroutine, running the specified callback. The coroutine will	2141	Create a new coroutine, running the specified callback. The coroutine will
1723	be automatically cancelled when the client gets destroyed (e.g. on logout,	2142	be automatically cancelled when the client gets destroyed (e.g. on logout,
1724	or loss of connection).	2143	or loss of connection).
1725		2144
1726	=cut	2145	=cut
1727		2146
1728	sub cf::client::coro {	2147	sub cf::client::async {
1729	my ($self, $cb) = @_;	2148	my ($self, $cb) = @_;
1730		2149
1731	my $coro; $coro = async {	2150	my $coro = &Coro::async ($cb);
1732	eval {
1733	$cb->();
1734	};
1735	warn $@ if $@;
1736	};
1737		2151
1738	$coro->on_destroy (sub {	2152	$coro->on_destroy (sub {
1739	delete $self->{_coro}{$coro+0};	2153	delete $self->{_coro}{$coro+0};
1740	});	2154	});
1741		2155
…		…
1774		2188
1775	# here we export the classes and methods available to script code	2189	# here we export the classes and methods available to script code
1776		2190
1777	=pod	2191	=pod
1778		2192
1779	The following fucntions and emthods are available within a safe environment:	2193	The following functions and methods are available within a safe environment:
1780		2194
1781	cf::object contr pay_amount pay_player map	2195	cf::object contr pay_amount pay_player map
1782	cf::object::player player	2196	cf::object::player player
1783	cf::player peaceful	2197	cf::player peaceful
1784	cf::map trigger	2198	cf::map trigger
…		…
1869	#############################################################################	2283	#############################################################################
1870		2284
1871	=head2 EXTENSION DATABASE SUPPORT	2285	=head2 EXTENSION DATABASE SUPPORT
1872		2286
1873	Crossfire maintains a very simple database for extension use. It can	2287	Crossfire maintains a very simple database for extension use. It can
1874	currently store anything that can be serialised using Storable, which	2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1875	excludes objects.	2289	convert to/from binary).
1876		2290
1877	The parameter C<$family> should best start with the name of the extension	2291	The parameter C<$family> should best start with the name of the extension
1878	using it, it should be unique.	2292	using it, it should be unique.
1879		2293
1880	=over 4	2294	=over 4
1881		2295
1882	=item $hashref = cf::db_get $family
1883
1884	Return a hashref for use by the extension C<$family>, which can be
1885	modified. After modifications, you have to call C<cf::db_dirty> or
1886	C<cf::db_sync>.
1887
1888	=item $value = cf::db_get $family => $key	2296	=item $value = cf::db_get $family => $key
1889		2297
1890	Returns a single value from the database	2298	Returns a single value from the database.
1891
1892	=item cf::db_put $family => $hashref
1893
1894	Stores the given family hashref into the database. Updates are delayed, if
1895	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1896		2299
1897	=item cf::db_put $family => $key => $value	2300	=item cf::db_put $family => $key => $value
1898		2301
1899	Stores the given C<$value> in the family hash. Updates are delayed, if you	2302	Stores the given C<$value> in the family.
1900	want the data to be synced to disk immediately, use C<cf::db_sync>.
1901
1902	=item cf::db_dirty
1903
1904	Marks the database as dirty, to be updated at a later time.
1905
1906	=item cf::db_sync
1907
1908	Immediately write the database to disk I<if it is dirty>.
1909		2303
1910	=cut	2304	=cut
1911		2305
1912	our $DB;	2306	our $DB;
1913		2307
1914	{	2308	sub db_init {
1915	my $path = cf::localdir . "/database.pst";	2309	unless ($DB) {
		2310	$DB = BDB::db_create $DB_ENV;
1916		2311
1917	sub db_load() {	2312	cf::sync_job {
1918	$DB = stat $path ? Storable::retrieve $path : { };	2313	eval {
1919	}	2314	$DB->set_flags (BDB::CHKSUM);
1920		2315
1921	my $pid;	2316	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1922		2317	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1923	sub db_save() {	2318	cf::cleanup "db_open(db): $!" if $!;
1924	waitpid $pid, 0 if $pid;	2319	};
1925	if (0 == ($pid = fork)) {	2320	cf::cleanup "db_open(db): $@" if $@;
1926	$DB->{_meta}{version} = 1;
1927	Storable::nstore $DB, "$path~";
1928	rename "$path~", $path;
1929	cf::_exit 0 if defined $pid;
1930	}	2321	};
1931	}
1932
1933	my $dirty;
1934
1935	sub db_sync() {
1936	db_save if $dirty;
1937	undef $dirty;
1938	}
1939
1940	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1941	db_sync;
1942	});	2322	}
		2323	}
1943		2324
1944	sub db_dirty() {
1945	$dirty = 1;
1946	$idle->start;
1947	}
1948
1949	sub db_get($;$) {	2325	sub db_get($$) {
1950	@_ >= 2	2326	my $key = "$_[0]/$_[1]";
1951	? $DB->{$_[0]}{$_[1]}
1952	: ($DB->{$_[0]} ||= { })
1953	}
1954		2327
		2328	cf::sync_job {
		2329	BDB::db_get $DB, undef, $key, my $data;
		2330
		2331	$! ? ()
		2332	: $data
		2333	}
		2334	}
		2335
1955	sub db_put($$;$) {	2336	sub db_put($$$) {
1956	if (@_ >= 3) {	2337	BDB::dbreq_pri 4;
1957	$DB->{$_[0]}{$_[1]} = $_[2];	2338	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1958	} else {	2339	}
1959	$DB->{$_[0]} = $_[1];
1960	}
1961	db_dirty;
1962	}
1963		2340
1964	cf::global->attach (	2341	=item cf::cache $id => [$paths...], $processversion => $process
1965	prio => 10000,	2342
1966	on_cleanup => sub {	2343	Generic caching function that returns the value of the resource $id,
1967	db_sync;	2344	caching and regenerating as required.
		2345
		2346	This function can block.
		2347
		2348	=cut
		2349
		2350	sub cache {
		2351	my ($id, $src, $processversion, $process) = @_;
		2352
		2353	my $meta =
		2354	join "\x00",
		2355	$processversion,
		2356	map {
		2357	aio_stat $_
		2358	and Carp::croak "$_: $!";
		2359
		2360	($_, (stat _)[7,9])
		2361	} @$src;
		2362
		2363	my $dbmeta = db_get cache => "$id/meta";
		2364	if ($dbmeta ne $meta) {
		2365	# changed, we may need to process
		2366
		2367	my @data;
		2368	my $md5;
		2369
		2370	for (0 .. $#$src) {
		2371	0 <= aio_load $src->[$_], $data[$_]
		2372	or Carp::croak "$src->[$_]: $!";
1968	},	2373	}
1969	);	2374
		2375	# if processing is expensive, check
		2376	# checksum first
		2377	if (1) {
		2378	$md5 =
		2379	join "\x00",
		2380	$processversion,
		2381	map {
		2382	Coro::cede;
		2383	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2384	} 0.. $#$src;
		2385
		2386
		2387	my $dbmd5 = db_get cache => "$id/md5";
		2388	if ($dbmd5 eq $md5) {
		2389	db_put cache => "$id/meta", $meta;
		2390
		2391	return db_get cache => "$id/data";
		2392	}
		2393	}
		2394
		2395	my $t1 = Time::HiRes::time;
		2396	my $data = $process->(\@data);
		2397	my $t2 = Time::HiRes::time;
		2398
		2399	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2400
		2401	db_put cache => "$id/data", $data;
		2402	db_put cache => "$id/md5" , $md5;
		2403	db_put cache => "$id/meta", $meta;
		2404
		2405	return $data;
		2406	}
		2407
		2408	db_get cache => "$id/data"
1970	}	2409	}
		2410
		2411	=item fork_call { }, $args
		2412
		2413	Executes the given code block with the given arguments in a seperate
		2414	process, returning the results. Everything must be serialisable with
		2415	Coro::Storable. May, of course, block. Note that the executed sub may
		2416	never block itself or use any form of Event handling.
		2417
		2418	=cut
		2419
		2420	sub fork_call(&@) {
		2421	my ($cb, @args) = @_;
		2422
		2423	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2424	# or die "socketpair: $!";
		2425	pipe my $fh1, my $fh2
		2426	or die "pipe: $!";
		2427
		2428	if (my $pid = fork) {
		2429	close $fh2;
		2430
		2431	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2432	$res = Coro::Storable::thaw $res;
		2433
		2434	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2435
		2436	die $$res unless "ARRAY" eq ref $res;
		2437
		2438	return wantarray ? @$res : $res->[-1];
		2439	} else {
		2440	reset_signals;
		2441	local $SIG{__WARN__};
		2442	local $SIG{__DIE__};
		2443	eval {
		2444	close $fh1;
		2445
		2446	my @res = eval { $cb->(@args) };
		2447	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2448	};
		2449
		2450	warn $@ if $@;
		2451	_exit 0;
		2452	}
		2453	}
		2454
		2455
1971		2456
1972	#############################################################################	2457	#############################################################################
1973	# the server's main()	2458	# the server's init and main functions
		2459
		2460	sub load_facedata($) {
		2461	my ($path) = @_;
		2462
		2463	warn "loading facedata from $path\n";
		2464
		2465	my $facedata;
		2466	0 < aio_load $path, $facedata
		2467	or die "$path: $!";
		2468
		2469	$facedata = Coro::Storable::thaw $facedata;
		2470
		2471	$facedata->{version} == 2
		2472	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2473
		2474	{
		2475	my $faces = $facedata->{faceinfo};
		2476
		2477	while (my ($face, $info) = each %$faces) {
		2478	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2479	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2480	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2481	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2482	Coro::cede;
		2483	}
		2484
		2485	while (my ($face, $info) = each %$faces) {
		2486	next unless $info->{smooth};
		2487	my $idx = cf::face::find $face
		2488	or next;
		2489	if (my $smooth = cf::face::find $info->{smooth}) {
		2490	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2491	} else {
		2492	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2493	}
		2494	Coro::cede;
		2495	}
		2496	}
		2497
		2498	{
		2499	my $anims = $facedata->{animinfo};
		2500
		2501	while (my ($anim, $info) = each %$anims) {
		2502	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2503	Coro::cede;
		2504	}
		2505
		2506	cf::anim::invalidate_all; # d'oh
		2507	}
		2508
		2509	1
		2510	}
		2511
		2512	sub reload_regions {
		2513	load_resource_file "$MAPDIR/regions"
		2514	or die "unable to load regions file\n";
		2515	}
		2516
		2517	sub reload_facedata {
		2518	load_facedata "$DATADIR/facedata"
		2519	or die "unable to load facedata\n";
		2520	}
		2521
		2522	sub reload_archetypes {
		2523	load_resource_file "$DATADIR/archetypes"
		2524	or die "unable to load archetypes\n";
		2525	}
		2526
		2527	sub reload_treasures {
		2528	load_resource_file "$DATADIR/treasures"
		2529	or die "unable to load treasurelists\n";
		2530	}
		2531
		2532	sub reload_resources {
		2533	warn "reloading resource files...\n";
		2534
		2535	reload_regions;
		2536	reload_facedata;
		2537	reload_archetypes;
		2538	reload_treasures;
		2539
		2540	warn "finished reloading resource files\n";
		2541	}
		2542
		2543	sub init {
		2544	reload_resources;
		2545	}
1974		2546
1975	sub cfg_load {	2547	sub cfg_load {
1976	open my $fh, "<:utf8", cf::confdir . "/config"	2548	open my $fh, "<:utf8", "$CONFDIR/config"
1977	or return;	2549	or return;
1978		2550
1979	local $/;	2551	local $/;
1980	*CFG = YAML::Syck::Load <$fh>;	2552	*CFG = YAML::Syck::Load <$fh>;
		2553
		2554	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2555
		2556	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2557	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2558
		2559	if (exists $CFG{mlockall}) {
		2560	eval {
		2561	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2562	and die "WARNING: m(un)lockall failed: $!\n";
		2563	};
		2564	warn $@ if $@;
		2565	}
1981	}	2566	}
1982		2567
1983	sub main {	2568	sub main {
1984	# we must not ever block the main coroutine	2569	# we must not ever block the main coroutine
1985	local $Coro::idle = sub {	2570	local $Coro::idle = sub {
1986	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2571	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1987	(Coro::unblock_sub {	2572	(async {
1988	Event::one_event;	2573	Event::one_event;
1989	})->();	2574	})->prio (Coro::PRIO_MAX);
1990	};	2575	};
1991		2576
1992	cfg_load;	2577	cfg_load;
1993	db_load;	2578	db_init;
1994	load_extensions;	2579	load_extensions;
		2580
		2581	$TICK_WATCHER->start;
1995	Event::loop;	2582	Event::loop;
1996	}	2583	}
1997		2584
1998	#############################################################################	2585	#############################################################################
1999	# initialisation	2586	# initialisation and cleanup
2000		2587
		2588	# install some emergency cleanup handlers
		2589	BEGIN {
		2590	for my $signal (qw(INT HUP TERM)) {
		2591	Event->signal (
		2592	reentrant => 0,
		2593	data => WF_AUTOCANCEL,
		2594	signal => $signal,
		2595	prio => 0,
		2596	cb => sub {
		2597	cf::cleanup "SIG$signal";
		2598	},
		2599	);
		2600	}
		2601	}
		2602
		2603	sub emergency_save() {
		2604	my $freeze_guard = cf::freeze_mainloop;
		2605
		2606	warn "enter emergency perl save\n";
		2607
		2608	cf::sync_job {
		2609	# use a peculiar iteration method to avoid tripping on perl
		2610	# refcount bugs in for. also avoids problems with players
		2611	# and maps saved/destroyed asynchronously.
		2612	warn "begin emergency player save\n";
		2613	for my $login (keys %cf::PLAYER) {
		2614	my $pl = $cf::PLAYER{$login} or next;
		2615	$pl->valid or next;
		2616	$pl->save;
		2617	}
		2618	warn "end emergency player save\n";
		2619
		2620	warn "begin emergency map save\n";
		2621	for my $path (keys %cf::MAP) {
		2622	my $map = $cf::MAP{$path} or next;
		2623	$map->valid or next;
		2624	$map->save;
		2625	}
		2626	warn "end emergency map save\n";
		2627
		2628	warn "begin emergency database checkpoint\n";
		2629	BDB::db_env_txn_checkpoint $DB_ENV;
		2630	warn "end emergency database checkpoint\n";
		2631	};
		2632
		2633	warn "leave emergency perl save\n";
		2634	}
		2635
		2636	sub post_cleanup {
		2637	my ($make_core) = @_;
		2638
		2639	warn Carp::longmess "post_cleanup backtrace"
		2640	if $make_core;
		2641	}
		2642
2001	sub reload() {	2643	sub do_reload_perl() {
2002	# can/must only be called in main	2644	# can/must only be called in main
2003	if ($Coro::current != $Coro::main) {	2645	if ($Coro::current != $Coro::main) {
2004	warn "can only reload from main coroutine\n";	2646	warn "can only reload from main coroutine";
2005	return;	2647	return;
2006	}	2648	}
2007		2649
2008	warn "reloading...";	2650	warn "reloading...";
2009		2651
2010	local $FREEZE = 1;	2652	warn "entering sync_job";
		2653
		2654	cf::sync_job {
		2655	cf::write_runtime; # external watchdog should not bark
2011	cf::emergency_save;	2656	cf::emergency_save;
		2657	cf::write_runtime; # external watchdog should not bark
2012		2658
2013	eval {	2659	warn "syncing database to disk";
		2660	BDB::db_env_txn_checkpoint $DB_ENV;
		2661
2014	# if anything goes wrong in here, we should simply crash as we already saved	2662	# if anything goes wrong in here, we should simply crash as we already saved
2015		2663
2016	# cancel all watchers	2664	warn "cancelling all WF_AUTOCANCEL watchers";
2017	for (Event::all_watchers) {	2665	for (Event::all_watchers) {
2018	$_->cancel if $_->data & WF_AUTOCANCEL;	2666	$_->cancel if $_->data & WF_AUTOCANCEL;
2019	}	2667	}
2020		2668
		2669	warn "flushing outstanding aio requests";
		2670	for (;;) {
		2671	BDB::flush;
		2672	IO::AIO::flush;
		2673	Coro::cede;
		2674	last unless IO::AIO::nreqs || BDB::nreqs;
		2675	warn "iterate...";
		2676	}
		2677
		2678	++$RELOAD;
		2679
2021	# cancel all extension coros	2680	warn "cancelling all extension coros";
2022	$_->cancel for values %EXT_CORO;	2681	$_->cancel for values %EXT_CORO;
2023	%EXT_CORO = ();	2682	%EXT_CORO = ();
2024		2683
2025	# unload all extensions	2684	warn "removing commands";
2026	for (@exts) {	2685	%COMMAND = ();
		2686
		2687	warn "removing ext commands";
		2688	%EXTCMD = ();
		2689
		2690	warn "unloading/nuking all extensions";
		2691	for my $pkg (@EXTS) {
2027	warn "unloading <$_>";	2692	warn "... unloading $pkg";
2028	unload_extension $_;	2693
		2694	if (my $cb = $pkg->can ("unload")) {
		2695	eval {
		2696	$cb->($pkg);
		2697	1
		2698	} or warn "$pkg unloaded, but with errors: $@";
2029	}	2699	}
2030		2700
		2701	warn "... nuking $pkg";
		2702	Symbol::delete_package $pkg;
		2703	}
		2704
2031	# unload all modules loaded from $LIBDIR	2705	warn "unloading all perl modules loaded from $LIBDIR";
2032	while (my ($k, $v) = each %INC) {	2706	while (my ($k, $v) = each %INC) {
2033	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2707	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2034		2708
2035	warn "removing <$k>";	2709	warn "... unloading $k";
2036	delete $INC{$k};	2710	delete $INC{$k};
2037		2711
2038	$k =~ s/\.pm$//;	2712	$k =~ s/\.pm$//;
2039	$k =~ s/\//::/g;	2713	$k =~ s/\//::/g;
2040		2714
…		…
2043	}	2717	}
2044		2718
2045	Symbol::delete_package $k;	2719	Symbol::delete_package $k;
2046	}	2720	}
2047		2721
2048	# sync database to disk
2049	cf::db_sync;
2050	IO::AIO::flush;
2051
2052	# get rid of safe::, as good as possible	2722	warn "getting rid of safe::, as good as possible";
2053	Symbol::delete_package "safe::$_"	2723	Symbol::delete_package "safe::$_"
2054	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2724	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2055		2725
2056	# remove register_script_function callbacks
2057	# TODO
2058
2059	# unload cf.pm "a bit"	2726	warn "unloading cf.pm \"a bit\"";
2060	delete $INC{"cf.pm"};	2727	delete $INC{"cf.pm"};
		2728	delete $INC{"cf/pod.pm"};
2061		2729
2062	# don't, removes xs symbols, too,	2730	# don't, removes xs symbols, too,
2063	# and global variables created in xs	2731	# and global variables created in xs
2064	#Symbol::delete_package __PACKAGE__;	2732	#Symbol::delete_package __PACKAGE__;
2065		2733
2066	# reload cf.pm	2734	warn "unload completed, starting to reload now";
		2735
2067	warn "reloading cf.pm";	2736	warn "reloading cf.pm";
2068	require cf;	2737	require cf;
2069	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2738	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2070		2739
2071	# load config and database again	2740	warn "loading config and database again";
2072	cf::cfg_load;	2741	cf::cfg_load;
2073	cf::db_load;
2074		2742
2075	# load extensions
2076	warn "load extensions";	2743	warn "loading extensions";
2077	cf::load_extensions;	2744	cf::load_extensions;
2078		2745
2079	# reattach attachments to objects	2746	warn "reattaching attachments to objects/players";
2080	warn "reattach";	2747	_global_reattach; # objects, sockets
2081	_global_reattach;	2748	warn "reattaching attachments to maps";
2082	};	2749	reattach $_ for values %MAP;
		2750	warn "reattaching attachments to players";
		2751	reattach $_ for values %PLAYER;
2083		2752
2084	if ($@) {	2753	warn "leaving sync_job";
		2754
		2755	1
		2756	} or do {
2085	warn $@;	2757	warn $@;
2086	warn "error while reloading, exiting.";	2758	warn "error while reloading, exiting.";
2087	exit 1;	2759	exit 1;
2088	}	2760	};
2089		2761
2090	warn "reloaded successfully";	2762	warn "reloaded";
2091	};	2763	};
2092		2764
2093	#############################################################################	2765	our $RELOAD_WATCHER; # used only during reload
2094		2766
2095	unless ($LINK_MAP) {	2767	sub reload_perl() {
2096	$LINK_MAP = cf::map::new;	2768	# doing reload synchronously and two reloads happen back-to-back,
		2769	# coro crashes during coro_state_free->destroy here.
2097		2770
2098	$LINK_MAP->width (41);	2771	$RELOAD_WATCHER ||= Event->timer (
2099	$LINK_MAP->height (41);	2772	reentrant => 0,
2100	$LINK_MAP->alloc;
2101	$LINK_MAP->path ("{link}");
2102	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2103	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2104
2105	# dirty hack because... archetypes are not yet loaded
2106	Event->timer (
2107	after => 2,	2773	after => 0,
		2774	data => WF_AUTOCANCEL,
2108	cb => sub {	2775	cb => sub {
2109	$_[0]->w->cancel;	2776	do_reload_perl;
2110		2777	undef $RELOAD_WATCHER;
2111	# provide some exits "home"
2112	my $exit = cf::object::new "exit";
2113
2114	$exit->slaying ($EMERGENCY_POSITION->[0]);
2115	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2116	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2117
2118	$LINK_MAP->insert ($exit->clone, 19, 19);
2119	$LINK_MAP->insert ($exit->clone, 19, 20);
2120	$LINK_MAP->insert ($exit->clone, 19, 21);
2121	$LINK_MAP->insert ($exit->clone, 20, 19);
2122	$LINK_MAP->insert ($exit->clone, 20, 21);
2123	$LINK_MAP->insert ($exit->clone, 21, 19);
2124	$LINK_MAP->insert ($exit->clone, 21, 20);
2125	$LINK_MAP->insert ($exit->clone, 21, 21);
2126
2127	$exit->destroy;
2128	});	2778	},
2129		2779	);
2130	$LINK_MAP->{deny_save} = 1;
2131	$LINK_MAP->{deny_reset} = 1;
2132
2133	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2134	}	2780	}
2135
2136	register "<global>", __PACKAGE__;
2137		2781
2138	register_command "reload" => sub {	2782	register_command "reload" => sub {
2139	my ($who, $arg) = @_;	2783	my ($who, $arg) = @_;
2140		2784
2141	if ($who->flag (FLAG_WIZ)) {	2785	if ($who->flag (FLAG_WIZ)) {
2142	$who->message ("start of reload.");
2143	reload;
2144	$who->message ("end of reload.");	2786	$who->message ("reloading server.");
		2787	async { reload_perl };
2145	}	2788	}
2146	};	2789	};
2147		2790
2148	unshift @INC, $LIBDIR;	2791	unshift @INC, $LIBDIR;
		2792
		2793	my $bug_warning = 0;
		2794
		2795	our @WAIT_FOR_TICK;
		2796	our @WAIT_FOR_TICK_BEGIN;
		2797
		2798	sub wait_for_tick {
		2799	return unless $TICK_WATCHER->is_active;
		2800	return if $Coro::current == $Coro::main;
		2801
		2802	my $signal = new Coro::Signal;
		2803	push @WAIT_FOR_TICK, $signal;
		2804	$signal->wait;
		2805	}
		2806
		2807	sub wait_for_tick_begin {
		2808	return unless $TICK_WATCHER->is_active;
		2809	return if $Coro::current == $Coro::main;
		2810
		2811	my $signal = new Coro::Signal;
		2812	push @WAIT_FOR_TICK_BEGIN, $signal;
		2813	$signal->wait;
		2814	}
2149		2815
2150	$TICK_WATCHER = Event->timer (	2816	$TICK_WATCHER = Event->timer (
2151	reentrant => 0,	2817	reentrant => 0,
		2818	parked => 1,
2152	prio => 0,	2819	prio => 0,
2153	at => $NEXT_TICK || $TICK,	2820	at => $NEXT_TICK || $TICK,
2154	data => WF_AUTOCANCEL,	2821	data => WF_AUTOCANCEL,
2155	cb => sub {	2822	cb => sub {
2156	unless ($FREEZE) {	2823	if ($Coro::current != $Coro::main) {
		2824	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2825	unless ++$bug_warning > 10;
		2826	return;
		2827	}
		2828
		2829	$NOW = Event::time;
		2830
2157	cf::server_tick; # one server iteration	2831	cf::server_tick; # one server iteration
		2832
2158	$RUNTIME += $TICK;	2833	$RUNTIME += $TICK;
2159	}
2160
2161	$NEXT_TICK += $TICK;	2834	$NEXT_TICK += $TICK;
		2835
		2836	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2837	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2838	Coro::async_pool {
		2839	write_runtime
		2840	or warn "ERROR: unable to write runtime file: $!";
		2841	};
		2842	}
		2843
		2844	# my $AFTER = Event::time;
		2845	# warn $AFTER - $NOW;#d#
2162		2846
2163	# if we are delayed by four ticks or more, skip them all	2847	# if we are delayed by four ticks or more, skip them all
2164	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2848	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2165		2849
2166	$TICK_WATCHER->at ($NEXT_TICK);	2850	$TICK_WATCHER->at ($NEXT_TICK);
2167	$TICK_WATCHER->start;	2851	$TICK_WATCHER->start;
		2852
		2853	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2854	$sig->send;
		2855	}
		2856	while (my $sig = shift @WAIT_FOR_TICK) {
		2857	$sig->send;
		2858	}
		2859
		2860	_post_tick;
2168	},	2861	},
2169	);	2862	);
2170		2863
		2864	{
2171	IO::AIO::max_poll_time $TICK * 0.2;	2865	BDB::max_poll_time $TICK * 0.1;
2172		2866	$BDB_POLL_WATCHER = Event->io (
2173	Event->io (	2867	reentrant => 0,
2174	fd => IO::AIO::poll_fileno,	2868	fd => BDB::poll_fileno,
2175	poll => 'r',	2869	poll => 'r',
2176	prio => 5,	2870	prio => 0,
2177	data => WF_AUTOCANCEL,
2178	cb => \&IO::AIO::poll_cb,
2179	);
2180
2181	Event->timer (
2182	data => WF_AUTOCANCEL,	2871	data => WF_AUTOCANCEL,
2183	after => 0,	2872	cb => \&BDB::poll_cb,
2184	interval => 10,	2873	);
2185	cb => sub {	2874	BDB::min_parallel 8;
2186	(Coro::unblock_sub {	2875
2187	write_runtime	2876	BDB::set_sync_prepare {
2188	or warn "ERROR: unable to write runtime file: $!";	2877	my $status;
		2878	my $current = $Coro::current;
		2879	(
		2880	sub {
		2881	$status = $!;
		2882	$current->ready; undef $current;
		2883	},
		2884	sub {
		2885	Coro::schedule while defined $current;
		2886	$! = $status;
		2887	},
		2888	)
		2889	};
		2890
		2891	unless ($DB_ENV) {
		2892	$DB_ENV = BDB::db_env_create;
		2893
		2894	cf::sync_job {
		2895	eval {
		2896	BDB::db_env_open
		2897	$DB_ENV,
		2898	$BDBDIR,
		2899	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2900	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2901	0666;
		2902
		2903	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2904
		2905	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2906	$DB_ENV->set_lk_detect;
		2907	};
		2908
		2909	cf::cleanup "db_env_open(db): $@" if $@;
2189	})->();	2910	};
2190	},	2911	}
2191	);	2912	}
		2913
		2914	{
		2915	IO::AIO::min_parallel 8;
		2916
		2917	undef $Coro::AIO::WATCHER;
		2918	IO::AIO::max_poll_time $TICK * 0.1;
		2919	$AIO_POLL_WATCHER = Event->io (
		2920	reentrant => 0,
		2921	data => WF_AUTOCANCEL,
		2922	fd => IO::AIO::poll_fileno,
		2923	poll => 'r',
		2924	prio => 6,
		2925	cb => \&IO::AIO::poll_cb,
		2926	);
		2927	}
		2928
		2929	my $_log_backtrace;
		2930
		2931	sub _log_backtrace {
		2932	my ($msg, @addr) = @_;
		2933
		2934	$msg =~ s/\n//;
		2935
		2936	# limit the # of concurrent backtraces
		2937	if ($_log_backtrace < 2) {
		2938	++$_log_backtrace;
		2939	async {
		2940	my @bt = fork_call {
		2941	@addr = map { sprintf "%x", $_ } @addr;
		2942	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2943	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2944	or die "addr2line: $!";
		2945
		2946	my @funcs;
		2947	my @res = <$fh>;
		2948	chomp for @res;
		2949	while (@res) {
		2950	my ($func, $line) = splice @res, 0, 2, ();
		2951	push @funcs, "[$func] $line";
		2952	}
		2953
		2954	@funcs
		2955	};
		2956
		2957	LOG llevInfo, "[ABT] $msg\n";
		2958	LOG llevInfo, "[ABT] $_\n" for @bt;
		2959	--$_log_backtrace;
		2960	};
		2961	} else {
		2962	LOG llevInfo, "[ABT] $msg\n";
		2963	LOG llevInfo, "[ABT] [suppressed]\n";
		2964	}
		2965	}
		2966
		2967	# load additional modules
		2968	use cf::pod;
		2969
		2970	END { cf::emergency_save }
2192		2971
2193	1	2972	1
2194		2973

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