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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.133 by root, Thu Jan 4 16:19:32 2007 UTC vs.
Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	91
55	our %EXT_CORO;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		94
57	binmode STDOUT;	95	binmode STDOUT;
58	binmode STDERR;	96	binmode STDERR;
59		97
60	# read virtual server time, if available	98	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
65	}	103	}
66		104
67	mkdir cf::localdir;	105	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		107
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	108	our $EMERGENCY_POSITION;
		109
		110	sub cf::map::normalise;
76		111
77	#############################################################################	112	#############################################################################
78		113
79	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
80		115
…		…
87	=item $cf::RUNTIME	122	=item $cf::RUNTIME
88		123
89	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
90	every server tick.	125	every server tick.
91		126
92	=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
93		130
94	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		135
97	=item $cf::NOW	136	=item $cf::NOW
98		137
99	The time of the last (current) server tick.	138	The time of the last (current) server tick.
100		139
…		…
104		143
105	=item %cf::CFG	144	=item %cf::CFG
106		145
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		154
110	=back	155	=back
111		156
112	=cut	157	=cut
113		158
114	BEGIN {	159	BEGIN {
115	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	161	my $msg = join "", @_;
117	utf8::encode $msg;
118		162
119	$msg .= "\n"	163	$msg .= "\n"
120	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
121		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
123	};	170	};
124	}	171	}
125		172
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		192
146	$Event::DIED = sub {	193	$Event::DIED = sub {
147	warn "error in event callback: @_";	194	warn "error in event callback: @_";
148	};	195	};
149		196
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
155		198
156	=over 4	199	=over 4
157		200
158	=cut	201	=item dumpval $ref
159		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
160	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
161		225
162	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
163		227
164	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
165		229
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
174		231
175	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
176		233
177	=cut
178
179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183
184	=item my $guard = cf::guard { BLOCK }
185
186	Run the given callback when the guard object gets destroyed (useful for
187	coroutine cancellations).
188
189	You can call C<< ->cancel >> on the guard object to stop the block from
190	being executed.
191
192	=cut
193
194	sub guard(&) {
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197
198	sub cf::guard::cancel {
199	${$_[0]} = sub { };
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}
205
206	=item cf::lock_wait $string	234	=item cf::lock_wait $string
207		235
208	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
209		237
210	=item my $lock = cf::lock_acquire $string	238	=item my $lock = cf::lock_acquire $string
211		239
212	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
213	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,
214	for example when the coroutine gets canceled), the lock is automatically	242	for example when the coroutine gets canceled), the lock is automatically
215	returned.	243	returned.
216		244
217	Lock names should begin with a unique identifier (for example, cf::map::find	245	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load 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.
219		251
220	=cut	252	=cut
221		253
222	our %LOCK;	254	our %LOCK;
223		255
…		…
237	# wait, to be sure we are not locked	269	# wait, to be sure we are not locked
238	lock_wait $key;	270	lock_wait $key;
239		271
240	$LOCK{$key} = [];	272	$LOCK{$key} = [];
241		273
242	cf::guard {	274	Coro::guard {
243	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
244	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
245	}	277	}
246	}	278	}
247		279
248	=item cf::async { BLOCK }	280	sub lock_active($) {
249
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251	error instead of exiting the server in case of a problem.
252
253	=cut
254
255	sub async(&) {
256	my ($cb) = @_;	281	my ($key) = @_;
257		282
258	Coro::async {	283	! ! $LOCK{$key}
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}	284	}
263		285
264	sub freeze_mainloop {	286	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	287	return unless $TICK_WATCHER->is_active;
266		288
267	my $guard = guard { $TICK_WATCHER->start };	289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
268	$TICK_WATCHER->stop;	292	$TICK_WATCHER->stop;
269	$guard	293	$guard
270	}	294	}
		295
		296	=item cf::async { BLOCK }
		297
		298	Currently the same as Coro::async_pool, meaning you cannot use
		299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
		301
		302	=cut
		303
		304	BEGIN { *async = \&Coro::async_pool }
271		305
272	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
273		307
274	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
275	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
…		…
294	my $freeze_guard = freeze_mainloop;	328	my $freeze_guard = freeze_mainloop;
295		329
296	my $busy = 1;	330	my $busy = 1;
297	my @res;	331	my @res;
298		332
299	(Coro::async {	333	(async {
300	@res = eval { $job->() };	334	@res = eval { $job->() };
301	warn $@ if $@;	335	warn $@ if $@;
302	undef $busy;	336	undef $busy;
303	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
304		338
305	while ($busy) {	339	while ($busy) {
306	Coro::cede_notself;	340	Coro::cede or Event::one_event;
307	Event::one_event unless Coro::nready;
308	}	341	}
309		342
310	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
311	} else {	344	} else {
312	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
313		346
314	$job->()	347	$job->()
315	}	348	}
316	}	349	}
317		350
318	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
319		352
320	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
322		355
323	=cut	356	=cut
324		357
325	sub coro(&) {	358	sub async_ext(&) {
326	my $cb = shift;	359	my $cb = shift;
327		360
328	my $coro = &cf::async ($cb);	361	my $coro = &Coro::async ($cb);
329		362
330	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
332	});	365	});
333	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
334		367
335	$coro	368	$coro
336	}	369	}
337		370
338	sub write_runtime {	371	sub write_runtime {
339	my $runtime = cf::localdir . "/runtime";	372	my $runtime = "$LOCALDIR/runtime";
340		373
		374	# first touch the runtime file to show we are still running:
		375	# the fsync below can take a very very long time.
		376
		377	warn "touching runtime...\n";#d#
		378	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		379	utime undef, undef, $fh;
		380	}
		381
		382	my $guard = cf::lock_acquire "write_runtime";
		383
		384	warn "starting to write runtime...\n";#d#
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	385	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
342	or return;	386	or return;
343		387
		388	my $value = $cf::RUNTIME + 90 + 10;
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	389	# 10 is the runtime save interval, for a monotonic clock
		390	# 60 allows for the watchdog to kill the server.
		391
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0	392	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;	393	and return;
347		394
		395	# always fsync - this file is important
348	aio_fsync $fh	396	aio_fsync $fh
349	and return;	397	and return;
350		398
		399	# touch it again to show we are up-to-date
		400	utime undef, undef, $fh;
		401
351	close $fh	402	close $fh
352	or return;	403	or return;
353		404
354	aio_rename "$runtime~", $runtime	405	aio_rename "$runtime~", $runtime
355	and return;	406	and return;
356		407
		408	warn "... done writing runtime.\n";#d#
		409
357	1	410	1
358	}	411	}
359		412
		413	=item cf::datalog type => key => value, ...
		414
		415	Log a datalog packet of the given type with the given key-value pairs.
		416
		417	=cut
		418
		419	sub datalog($@) {
		420	my ($type, %kv) = @_;
		421	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		422	}
		423
360	=back	424	=back
361		425
362	=cut	426	=cut
363
364	#############################################################################
365
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483		427
484	#############################################################################	428	#############################################################################
485		429
486	=head2 ATTACHABLE OBJECTS	430	=head2 ATTACHABLE OBJECTS
487		431
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	557	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	558	our @CB_MAP = ();
615		559
616	my %attachment;	560	my %attachment;
617		561
		562	sub cf::attachable::thawer_merge {
		563	# simply override everything except _meta
		564	local $_[0]{_meta};
		565	%{$_[0]} = %{$_[1]};
		566	}
		567
618	sub _attach_cb($$$$) {	568	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	569	my ($registry, $event, $prio, $cb) = @_;
620		570
621	use sort 'stable';	571	use sort 'stable';
622		572
…		…
793	# object support	743	# object support
794		744
795	sub reattach {	745	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	746	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	747	my ($obj) = @_;
		748
		749	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		750
799	my $registry = $obj->registry;	751	my $registry = $obj->registry;
800		752
801	@$registry = ();	753	@$registry = ();
802		754
…		…
849	$filename, length $$rdata, scalar @$objs;	801	$filename, length $$rdata, scalar @$objs;
850		802
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	803	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	804	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	805	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	806	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	807	close $fh;
856		808
857	if (@$objs) {	809	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	810	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	811	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	812	my $data = Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	813	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	814	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	815	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	816	aio_rename "$filename.pst~", "$filename.pst";
865	}	817	}
866	} else {	818	} else {
867	aio_unlink "$filename.pst";	819	aio_unlink "$filename.pst";
…		…
934	=cut	886	=cut
935		887
936	sub register_extcmd {	888	sub register_extcmd {
937	my ($name, $cb) = @_;	889	my ($name, $cb) = @_;
938		890
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	891	$EXTCMD{$name} = $cb;
943	}	892	}
944		893
945	cf::player->attach (	894	cf::player->attach (
946	on_command => sub {	895	on_command => sub {
947	my ($pl, $name, $params) = @_;	896	my ($pl, $name, $params) = @_;
…		…
960		909
961	my $msg = eval { from_json $buf };	910	my $msg = eval { from_json $buf };
962		911
963	if (ref $msg) {	912	if (ref $msg) {
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	913	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	914	if (my %reply = $cb->($pl, $msg)) {
966	$pl->ext_reply ($msg->{msgid}, %reply);	915	$pl->ext_reply ($msg->{msgid}, %reply);
967	}	916	}
968	}	917	}
969	} else {	918	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	919	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
972		921
973	cf::override;	922	cf::override;
974	},	923	},
975	);	924	);
976		925
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	926	sub load_extension {
984	my ($path) = @_;	927	my ($path) = @_;
985		928
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	929	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
987	my $base = $1;	930	my $base = $1;
988	my $pkg = $1;	931	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;	932	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";	933	$pkg = "ext::$pkg";
991		934
992	warn "loading '$path' into '$pkg'\n";	935	warn "... loading '$path' into '$pkg'\n";
993		936
994	open my $fh, "<:utf8", $path	937	open my $fh, "<:utf8", $path
995	or die "$path: $!";	938	or die "$path: $!";
996		939
997	my $source =	940	my $source =
998	"package $pkg; use strict; use utf8;\n"	941	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"	942	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })	943	. (do { local $/; <$fh> })
1001	. "\n};\n1";	944	. "\n};\n1";
1002		945
1003	eval $source	946	unless (eval $source) {
1004	or die $@ ? "$path: $@\n"	947	my $msg = $@ ? "$path: $@\n"
1005	: "extension disabled.\n";	948	: "extension disabled.\n";
1006		949	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1007	push @exts, $pkg;	950	warn $@;
1008	$ext_pkg{$base} = $pkg;	951	warn "mandatory extension failed to load, exiting.\n";
1009		952	exit 1;
1010	# no strict 'refs';	953	}
1011	# @{"$pkg\::ISA"} = ext::;	954	die $@;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }	955	}
1026		956
1027	# remove commands	957	push @EXTS, $pkg;
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}
1036	}
1037
1038	# remove extcmds
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}	958	}
1052		959
1053	sub load_extensions {	960	sub load_extensions {
1054	for my $ext (<$LIBDIR/*.ext>) {	961	for my $ext (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;	962	next unless -r $ext;
…		…
1059	} or warn "$ext not loaded: $@";	966	} or warn "$ext not loaded: $@";
1060	}	967	}
1061	}	968	}
1062		969
1063	#############################################################################	970	#############################################################################
1064	# load/save/clean perl data associated with a map
1065
1066	*cf::mapsupport::on_clean = sub {
1067	my ($map) = @_;
1068
1069	my $path = $map->tmpname;
1070	defined $path or return;
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}
1083
1084	# TODO: compatibility cruft, remove when no longer needed
1085	cf::player->attach (
1086	on_load => sub {
1087	my ($pl, $path) = @_;
1088
1089	for my $o (all_objects $pl->ob) {
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091	$o->set_ob_key_value ("_perl_data");
1092
1093	%$o = %{ Storable::thaw pack "H*", $value };
1094	}
1095	}
1096	},
1097	);
1098
1099	#############################################################################
1100		971
1101	=head2 CORE EXTENSIONS	972	=head2 CORE EXTENSIONS
1102		973
1103	Functions and methods that extend core crossfire objects.	974	Functions and methods that extend core crossfire objects.
1104		975
		976	=cut
		977
		978	package cf::player;
		979
		980	use Coro::AIO;
		981
1105	=head3 cf::player	982	=head3 cf::player
1106		983
1107	=over 4	984	=over 4
1108		985
1109	=item cf::player::exists $login	986	=item cf::player::find $login
1110		987
1111	Returns true when the given account exists.	988	Returns the given player object, loading it if necessary (might block).
1112		989
1113	=cut	990	=cut
1114		991
1115	sub cf::player::exists($) {	992	sub playerdir($) {
1116	cf::player::find $_[0]	993	"$PLAYERDIR/"
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	994	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1118	}	995	}
1119		996
		997	sub path($) {
		998	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		999
		1000	(playerdir $login) . "/playerdata"
		1001	}
		1002
		1003	sub find_active($) {
		1004	$cf::PLAYER{$_[0]}
		1005	and $cf::PLAYER{$_[0]}->active
		1006	and $cf::PLAYER{$_[0]}
		1007	}
		1008
		1009	sub exists($) {
		1010	my ($login) = @_;
		1011
		1012	$cf::PLAYER{$login}
		1013	or cf::sync_job { !aio_stat path $login }
		1014	}
		1015
		1016	sub find($) {
		1017	return $cf::PLAYER{$_[0]} || do {
		1018	my $login = $_[0];
		1019
		1020	my $guard = cf::lock_acquire "user_find:$login";
		1021
		1022	$cf::PLAYER{$_[0]} || do {
		1023	# rename old playerfiles to new ones
		1024	#TODO: remove when no longer required
		1025	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1026	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1027	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1028	aio_unlink +(playerdir $login) . "/$login.pl";
		1029
		1030	my $pl = load_pl path $login
		1031	or return;
		1032	$cf::PLAYER{$login} = $pl
		1033	}
		1034	}
		1035	}
		1036
		1037	sub save($) {
		1038	my ($pl) = @_;
		1039
		1040	return if $pl->{deny_save};
		1041
		1042	my $path = path $pl;
		1043	my $guard = cf::lock_acquire "user_save:$path";
		1044
		1045	return if $pl->{deny_save};
		1046
		1047	aio_mkdir playerdir $pl, 0770;
		1048	$pl->{last_save} = $cf::RUNTIME;
		1049
		1050	$pl->save_pl ($path);
		1051	Coro::cede;
		1052	}
		1053
		1054	sub new($) {
		1055	my ($login) = @_;
		1056
		1057	my $self = create;
		1058
		1059	$self->ob->name ($login);
		1060	$self->{deny_save} = 1;
		1061
		1062	$cf::PLAYER{$login} = $self;
		1063
		1064	$self
		1065	}
		1066
		1067	=item $pl->quit_character
		1068
		1069	Nukes the player without looking back. If logged in, the connection will
		1070	be destroyed. May block for a long time.
		1071
		1072	=cut
		1073
		1074	sub quit_character {
		1075	my ($pl) = @_;
		1076
		1077	my $name = $pl->ob->name;
		1078
		1079	$pl->{deny_save} = 1;
		1080	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1081
		1082	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1083	$pl->deactivate;
		1084	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1085	$pl->ns->destroy if $pl->ns;
		1086
		1087	my $path = playerdir $pl;
		1088	my $temp = "$path~$cf::RUNTIME~deleting~";
		1089	aio_rename $path, $temp;
		1090	delete $cf::PLAYER{$pl->ob->name};
		1091	$pl->destroy;
		1092
		1093	my $prefix = qr<^~\Q$name\E/>;
		1094
		1095	# nuke player maps
		1096	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1097
		1098	IO::AIO::aio_rmtree $temp;
		1099	}
		1100
		1101	=item $pl->kick
		1102
		1103	Kicks a player out of the game. This destroys the connection.
		1104
		1105	=cut
		1106
		1107	sub kick {
		1108	my ($pl, $kicker) = @_;
		1109
		1110	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1111	$pl->killer ("kicked");
		1112	$pl->ns->destroy;
		1113	}
		1114
		1115	=item cf::player::list_logins
		1116
		1117	Returns am arrayref of all valid playernames in the system, can take a
		1118	while and may block, so not sync_job-capable, ever.
		1119
		1120	=cut
		1121
		1122	sub list_logins {
		1123	my $dirs = aio_readdir $PLAYERDIR
		1124	or return [];
		1125
		1126	my @logins;
		1127
		1128	for my $login (@$dirs) {
		1129	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1130	aio_read $fh, 0, 512, my $buf, 0 or next;
		1131	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1132
		1133	utf8::decode $login;
		1134	push @logins, $login;
		1135	}
		1136
		1137	\@logins
		1138	}
		1139
		1140	=item $player->maps
		1141
		1142	Returns an arrayref of map paths that are private for this
		1143	player. May block.
		1144
		1145	=cut
		1146
		1147	sub maps($) {
		1148	my ($pl) = @_;
		1149
		1150	$pl = ref $pl ? $pl->ob->name : $pl;
		1151
		1152	my $files = aio_readdir playerdir $pl
		1153	or return;
		1154
		1155	my @paths;
		1156
		1157	for (@$files) {
		1158	utf8::decode $_;
		1159	next if /\.(?:pl|pst)$/;
		1160	next unless /^$PATH_SEP/o;
		1161
		1162	push @paths, cf::map::normalise "~$pl/$_";
		1163	}
		1164
		1165	\@paths
		1166	}
		1167
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)	1168	=item $player->ext_reply ($msgid, %msg)
1121		1169
1122	Sends an ext reply to the player.	1170	Sends an ext reply to the player.
1123		1171
1124	=cut	1172	=cut
1125		1173
1126	sub cf::player::ext_reply($$$%) {	1174	sub ext_reply($$%) {
1127	my ($self, $id, %msg) = @_;	1175	my ($self, $id, %msg) = @_;
1128		1176
1129	$msg{msgid} = $id;	1177	$msg{msgid} = $id;
1130		1178
1131	$self->send ("ext " . to_json \%msg);	1179	$self->send ("ext " . cf::to_json \%msg);
		1180	}
		1181
		1182	=item $player->ext_event ($type, %msg)
		1183
		1184	Sends an ext event to the client.
		1185
		1186	=cut
		1187
		1188	sub ext_event($$%) {
		1189	my ($self, $type, %msg) = @_;
		1190
		1191	$self->ns->ext_event ($type, %msg);
		1192	}
		1193
		1194	=head3 cf::region
		1195
		1196	=over 4
		1197
		1198	=cut
		1199
		1200	package cf::region;
		1201
		1202	=item cf::region::find_by_path $path
		1203
		1204	Tries to decuce the probable region for a map knowing only its path.
		1205
		1206	=cut
		1207
		1208	sub find_by_path($) {
		1209	my ($path) = @_;
		1210
		1211	my ($match, $specificity);
		1212
		1213	for my $region (list) {
		1214	if ($region->match && $path =~ $region->match) {
		1215	($match, $specificity) = ($region, $region->specificity)
		1216	if $region->specificity > $specificity;
		1217	}
		1218	}
		1219
		1220	$match
1132	}	1221	}
1133		1222
1134	=back	1223	=back
1135
1136		1224
1137	=head3 cf::map	1225	=head3 cf::map
1138		1226
1139	=over 4	1227	=over 4
1140		1228
…		…
1143	package cf::map;	1231	package cf::map;
1144		1232
1145	use Fcntl;	1233	use Fcntl;
1146	use Coro::AIO;	1234	use Coro::AIO;
1147		1235
		1236	use overload
		1237	'""' => \&as_string,
		1238	fallback => 1;
		1239
1148	our $MAX_RESET = 3600;	1240	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1241	our $DEFAULT_RESET = 3000;
1150		1242
1151	sub generate_random_map {	1243	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1244	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1245	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1246	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1247	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1248	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1249	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1250	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1251	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1252	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1253	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1254	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1255	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1256	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1257	(cf::region::find $rmp->{region}), $rmp->{custom}
		1258	)
		1259	}
		1260
		1261	=item cf::map->register ($regex, $prio)
		1262
		1263	Register a handler for the map path matching the given regex at the
		1264	givne priority (higher is better, built-in handlers have priority 0, the
		1265	default).
		1266
		1267	=cut
		1268
		1269	sub register {
		1270	my (undef, $regex, $prio) = @_;
		1271	my $pkg = caller;
		1272
		1273	no strict;
		1274	push @{"$pkg\::ISA"}, __PACKAGE__;
		1275
		1276	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1277	}
		1278
		1279	# also paths starting with '/'
		1280	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1281
		1282	sub thawer_merge {
		1283	my ($self, $merge) = @_;
		1284
		1285	# we have to keep some variables in memory intact
		1286	local $self->{path};
		1287	local $self->{load_path};
		1288	local $self->{deny_save};
		1289	local $self->{deny_reset};
		1290
		1291	$self->SUPER::thawer_merge ($merge);
		1292	}
		1293
		1294	sub normalise {
		1295	my ($path, $base) = @_;
		1296
		1297	$path = "$path"; # make sure its a string
		1298
		1299	$path =~ s/\.map$//;
		1300
		1301	# map plan:
		1302	#
		1303	# /! non-realised random map exit (special hack!)
		1304	# {... are special paths that are not being touched
		1305	# ?xxx/... are special absolute paths
		1306	# ?random/... random maps
		1307	# /... normal maps
		1308	# ~user/... per-player map of a specific user
		1309
		1310	$path =~ s/$PATH_SEP/\//go;
		1311
		1312	# treat it as relative path if it starts with
		1313	# something that looks reasonable
		1314	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1315	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1316
		1317	$base =~ s{[^/]+/?$}{};
		1318	$path = "$base/$path";
		1319	}
		1320
		1321	for ($path) {
		1322	redo if s{//}{/};
		1323	redo if s{/\.?/}{/};
		1324	redo if s{/[^/]+/\.\./}{/};
		1325	}
		1326
		1327	$path
		1328	}
		1329
		1330	sub new_from_path {
		1331	my (undef, $path, $base) = @_;
		1332
		1333	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1334
		1335	$path = normalise $path, $base;
		1336
		1337	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1338	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1339	my $self = bless cf::map::new, $pkg;
		1340	$self->{path} = $path; $self->path ($path);
		1341	$self->init; # pass $1 etc.
		1342	return $self;
		1343	}
		1344	}
		1345
		1346	Carp::carp "unable to resolve path '$path' (base '$base').";
		1347	()
		1348	}
		1349
		1350	sub init {
		1351	my ($self) = @_;
		1352
		1353	$self
		1354	}
		1355
		1356	sub as_string {
		1357	my ($self) = @_;
		1358
		1359	"$self->{path}"
		1360	}
		1361
		1362	# the displayed name, this is a one way mapping
		1363	sub visible_name {
		1364	&as_string
		1365	}
		1366
		1367	# the original (read-only) location
		1368	sub load_path {
		1369	my ($self) = @_;
		1370
		1371	"$MAPDIR/$self->{path}.map"
		1372	}
		1373
		1374	# the temporary/swap location
		1375	sub save_path {
		1376	my ($self) = @_;
		1377
		1378	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1379	"$TMPDIR/$path.map"
		1380	}
		1381
		1382	# the unique path, undef == no special unique path
		1383	sub uniq_path {
		1384	my ($self) = @_;
		1385
		1386	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1387	"$UNIQUEDIR/$path"
1168	}	1388	}
1169		1389
1170	# and all this just because we cannot iterate over	1390	# and all this just because we cannot iterate over
1171	# all maps in C++...	1391	# all maps in C++...
1172	sub change_all_map_light {	1392	sub change_all_map_light {
…		…
1174		1394
1175	$_->change_map_light ($change)	1395	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1396	for grep $_->outdoor, values %cf::MAP;
1177	}	1397	}
1178		1398
		1399	sub unlink_save {
		1400	my ($self) = @_;
		1401
		1402	utf8::encode (my $save = $self->save_path);
		1403	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1404	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1405	}
		1406
1179	sub try_load_header($) {	1407	sub load_header_from($) {
1180	my ($path) = @_;	1408	my ($self, $path) = @_;
1181		1409
1182	utf8::encode $path;	1410	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1411	#aio_open $path, O_RDONLY, 0
		1412	# or return;
		1413
		1414	$self->_load_header ($path)
1184	or return;	1415	or return;
1185		1416
1186	my $map = cf::map::new	1417	$self->{load_path} = $path;
		1418
		1419	1
		1420	}
		1421
		1422	sub load_header_orig {
		1423	my ($self) = @_;
		1424
		1425	$self->load_header_from ($self->load_path)
		1426	}
		1427
		1428	sub load_header_temp {
		1429	my ($self) = @_;
		1430
		1431	$self->load_header_from ($self->save_path)
		1432	}
		1433
		1434	sub prepare_temp {
		1435	my ($self) = @_;
		1436
		1437	$self->last_access ((delete $self->{last_access})
		1438	|| $cf::RUNTIME); #d#
		1439	# safety
		1440	$self->{instantiate_time} = $cf::RUNTIME
		1441	if $self->{instantiate_time} > $cf::RUNTIME;
		1442	}
		1443
		1444	sub prepare_orig {
		1445	my ($self) = @_;
		1446
		1447	$self->{load_original} = 1;
		1448	$self->{instantiate_time} = $cf::RUNTIME;
		1449	$self->last_access ($cf::RUNTIME);
		1450	$self->instantiate;
		1451	}
		1452
		1453	sub load_header {
		1454	my ($self) = @_;
		1455
		1456	if ($self->load_header_temp) {
		1457	$self->prepare_temp;
		1458	} else {
		1459	$self->load_header_orig
1187	or return;	1460	or return;
		1461	$self->prepare_orig;
		1462	}
1188		1463
1189	$map->load_header ($path)	1464	$self->default_region (cf::region::find_by_path $self->{path})
1190	or return;	1465	unless $self->default_region;
1191		1466
1192	$map->{load_path} = $path;	1467	1
1193
1194	$map
1195	}	1468	}
1196		1469
1197	sub find;	1470	sub find;
1198	sub find {	1471	sub find {
1199	my ($path, $origin) = @_;	1472	my ($path, $origin) = @_;
1200		1473
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1474	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1475
1206	cf::lock_wait "map_find:$key";	1476	cf::lock_wait "map_find:$path";
1207		1477
1208	$cf::MAP{$key} || do {	1478	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1479	my $guard = cf::lock_acquire "map_find:$path";
1210		1480	my $map = new_from_path cf::map $path
1211	# do it the slow way
1212	my $map = try_load_header $path->save_path;
1213
1214	if ($map) {
1215	$map->last_access ((delete $map->{last_access})
1216	|| $cf::RUNTIME); #d#
1217	# safety
1218	$map->{instantiate_time} = $cf::RUNTIME
1219	if $map->{instantiate_time} > $cf::RUNTIME;
1220	} else {
1221	if (my $rmp = $path->random_map_params) {
1222	$map = generate_random_map $key, $rmp;
1223	} else {
1224	$map = try_load_header $path->load_path;
1225	}
1226
1227	$map or return;	1481	or return;
1228		1482
1229	$map->{load_original} = 1;
1230	$map->{instantiate_time} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232	$map->instantiate;
1233
1234	# per-player maps become, after loading, normal maps
1235	$map->per_player (0) if $path->{user_rel};
1236	}
1237
1238	$map->path ($key);
1239	$map->{path} = $path;
1240	$map->{last_save} = $cf::RUNTIME;	1483	$map->{last_save} = $cf::RUNTIME;
1241		1484
1242	if ($map->should_reset) {	1485	$map->load_header
		1486	or return;
		1487
		1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1489	# doing this can freeze the server in a sync job, obviously
		1490	#$cf::WAIT_FOR_TICK->wait;
1243	$map->reset;	1491	$map->reset;
1244	undef $guard;	1492	undef $guard;
1245	$map = find $path	1493	return find $path;
1246	or return;
1247	}	1494	}
1248		1495
1249	$cf::MAP{$key} = $map	1496	$cf::MAP{$path} = $map
1250	}	1497	}
1251	}	1498	}
		1499
		1500	sub pre_load { }
		1501	sub post_load { }
1252		1502
1253	sub load {	1503	sub load {
1254	my ($self) = @_;	1504	my ($self) = @_;
1255		1505
		1506	local $self->{deny_reset} = 1; # loading can take a long time
		1507
1256	my $path = $self->{path};	1508	my $path = $self->{path};
		1509
		1510	{
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1511	my $guard = cf::lock_acquire "map_load:$path";
1258		1512
1259	return if $self->in_memory != cf::MAP_SWAPPED;	1513	return if $self->in_memory != cf::MAP_SWAPPED;
1260		1514
1261	$self->in_memory (cf::MAP_LOADING);	1515	$self->in_memory (cf::MAP_LOADING);
1262		1516
1263	$self->alloc;	1517	$self->alloc;
		1518
		1519	$self->pre_load;
		1520	Coro::cede;
		1521
1264	$self->load_objects ($self->{load_path}, 1)	1522	$self->_load_objects ($self->{load_path}, 1)
1265	or return;	1523	or return;
1266		1524
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1525	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1268	if delete $self->{load_original};	1526	if delete $self->{load_original};
1269		1527
1270	if (my $uniq = $path->uniq_path) {	1528	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	1529	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	1530	if (aio_open $uniq, O_RDONLY, 0) {
1273	$self->clear_unique_items;	1531	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	1532	$self->_load_objects ($uniq, 0);
1275	}	1533	}
1276	}	1534	}
1277		1535
		1536	Coro::cede;
1278	# now do the right thing for maps	1537	# now do the right thing for maps
1279	$self->link_multipart_objects;	1538	$self->link_multipart_objects;
1280
1281	if ($self->{path}->is_style_map) {
1282	$self->{deny_save} = 1;
1283	$self->{deny_reset} = 1;
1284	} else {
1285	$self->fix_auto_apply;
1286	$self->decay_objects;
1287	$self->update_buttons;
1288	$self->set_darkness_map;
1289	$self->difficulty ($self->estimate_difficulty)	1539	$self->difficulty ($self->estimate_difficulty)
1290	unless $self->difficulty;	1540	unless $self->difficulty;
		1541	Coro::cede;
		1542
		1543	unless ($self->{deny_activate}) {
		1544	$self->decay_objects;
		1545	$self->fix_auto_apply;
		1546	$self->update_buttons;
		1547	Coro::cede;
		1548	$self->set_darkness_map;
		1549	Coro::cede;
1291	$self->activate;	1550	$self->activate;
1292	}	1551	}
1293		1552
1294	$self->in_memory (cf::MAP_IN_MEMORY);	1553	$self->in_memory (cf::MAP_IN_MEMORY);
		1554	}
		1555
		1556	$self->post_load;
		1557	}
		1558
		1559	sub customise_for {
		1560	my ($self, $ob) = @_;
		1561
		1562	return find "~" . $ob->name . "/" . $self->{path}
		1563	if $self->per_player;
		1564
		1565	$self
		1566	}
		1567
		1568	# find and load all maps in the 3x3 area around a map
		1569	sub load_diag {
		1570	my ($map) = @_;
		1571
		1572	my @diag; # diagonal neighbours
		1573
		1574	for (0 .. 3) {
		1575	my $neigh = $map->tile_path ($_)
		1576	or next;
		1577	$neigh = find $neigh, $map
		1578	or next;
		1579	$neigh->load;
		1580
		1581	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1582	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1583	}
		1584
		1585	for (@diag) {
		1586	my $neigh = find @$_
		1587	or next;
		1588	$neigh->load;
		1589	}
1295	}	1590	}
1296		1591
1297	sub find_sync {	1592	sub find_sync {
1298	my ($path, $origin) = @_;	1593	my ($path, $origin) = @_;
1299		1594
1300	cf::sync_job { cf::map::find $path, $origin }	1595	cf::sync_job { find $path, $origin }
1301	}	1596	}
1302		1597
1303	sub do_load_sync {	1598	sub do_load_sync {
1304	my ($map) = @_;	1599	my ($map) = @_;
1305		1600
1306	cf::sync_job { $map->load };	1601	cf::sync_job { $map->load };
1307	}	1602	}
1308		1603
		1604	our %MAP_PREFETCH;
		1605	our $MAP_PREFETCHER = undef;
		1606
		1607	sub find_async {
		1608	my ($path, $origin) = @_;
		1609
		1610	$path = normalise $path, $origin && $origin->{path};
		1611
		1612	if (my $map = $cf::MAP{$path}) {
		1613	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1614	}
		1615
		1616	undef $MAP_PREFETCH{$path};
		1617	$MAP_PREFETCHER ||= cf::async {
		1618	while (%MAP_PREFETCH) {
		1619	for my $path (keys %MAP_PREFETCH) {
		1620	my $map = find $path
		1621	or next;
		1622	$map->load;
		1623
		1624	delete $MAP_PREFETCH{$path};
		1625	}
		1626	}
		1627	undef $MAP_PREFETCHER;
		1628	};
		1629	$MAP_PREFETCHER->prio (6);
		1630
		1631	()
		1632	}
		1633
1309	sub save {	1634	sub save {
1310	my ($self) = @_;	1635	my ($self) = @_;
1311		1636
		1637	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1638
1312	$self->{last_save} = $cf::RUNTIME;	1639	$self->{last_save} = $cf::RUNTIME;
1313		1640
1314	return unless $self->dirty;	1641	return unless $self->dirty;
1315		1642
1316	my $save = $self->{path}->save_path; utf8::encode $save;	1643	my $save = $self->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1644	my $uniq = $self->uniq_path; utf8::encode $uniq;
1318		1645
1319	$self->{load_path} = $save;	1646	$self->{load_path} = $save;
1320		1647
1321	return if $self->{deny_save};	1648	return if $self->{deny_save};
1322		1649
1323	local $self->{last_access} = $self->last_access;#d#	1650	local $self->{last_access} = $self->last_access;#d#
1324		1651
		1652	cf::async {
		1653	$_->contr->save for $self->players;
		1654	};
		1655
1325	if ($uniq) {	1656	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1657	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);	1658	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {	1659	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1660	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}	1661	}
1331	}	1662	}
1332		1663
1333	sub swap_out {	1664	sub swap_out {
1334	my ($self) = @_;	1665	my ($self) = @_;
1335		1666
1336	# save first because save cedes	1667	# save first because save cedes
1337	$self->save;	1668	$self->save;
		1669
		1670	my $lock = cf::lock_acquire "map_data:" . $self->path;
1338		1671
1339	return if $self->players;	1672	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;	1673	return if $self->in_memory != cf::MAP_IN_MEMORY;
1341	return if $self->{deny_save};	1674	return if $self->{deny_save};
1342		1675
…		…
1346		1679
1347	sub reset_at {	1680	sub reset_at {
1348	my ($self) = @_;	1681	my ($self) = @_;
1349		1682
1350	# TODO: safety, remove and allow resettable per-player maps	1683	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};	1684	return 1e99 if $self->isa ("ext::map_per_player");#d#
1352	return 1e99 if $self->{deny_reset};	1685	return 1e99 if $self->{deny_reset};
1353		1686
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		1689
…		…
1361	my ($self) = @_;	1694	my ($self) = @_;
1362		1695
1363	$self->reset_at <= $cf::RUNTIME	1696	$self->reset_at <= $cf::RUNTIME
1364	}	1697	}
1365		1698
1366	sub unlink_save {
1367	my ($self) = @_;
1368
1369	utf8::encode (my $save = $self->{path}->save_path);
1370	aioreq_pri 3; IO::AIO::aio_unlink $save;
1371	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1372	}
1373
1374	sub rename {
1375	my ($self, $new_path) = @_;
1376
1377	$self->unlink_save;
1378
1379	delete $cf::MAP{$self->path};
1380	$self->{path} = new cf::path $new_path;
1381	$self->path ($self->{path}->as_string);
1382	$cf::MAP{$self->path} = $self;
1383
1384	$self->save;
1385	}
1386
1387	sub reset {	1699	sub reset {
1388	my ($self) = @_;	1700	my ($self) = @_;
1389		1701
		1702	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1703
1390	return if $self->players;	1704	return if $self->players;
1391	return if $self->{path}{user_rel};#d#	1705	return if $self->isa ("ext::map_per_player");#d#
1392		1706
1393	warn "resetting map ", $self->path;#d#	1707	warn "resetting map ", $self->path;#d#
1394		1708
		1709	$self->in_memory (cf::MAP_SWAPPED);
		1710
		1711	# need to save uniques path
		1712	unless ($self->{deny_save}) {
		1713	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1714
		1715	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1716	if $uniq;
		1717	}
		1718
1395	delete $cf::MAP{$self->path};	1719	delete $cf::MAP{$self->path};
		1720
		1721	$self->clear;
1396		1722
1397	$_->clear_links_to ($self) for values %cf::MAP;	1723	$_->clear_links_to ($self) for values %cf::MAP;
1398		1724
1399	$self->unlink_save;	1725	$self->unlink_save;
1400	$self->destroy;	1726	$self->destroy;
…		…
1403	my $nuke_counter = "aaaa";	1729	my $nuke_counter = "aaaa";
1404		1730
1405	sub nuke {	1731	sub nuke {
1406	my ($self) = @_;	1732	my ($self) = @_;
1407		1733
		1734	delete $cf::MAP{$self->path};
		1735
		1736	$self->unlink_save;
		1737
		1738	bless $self, "cf::map";
		1739	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	1740	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	1741	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	1742	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1743
		1744	$cf::MAP{$self->path} = $self;
		1745
1411	$self->reset; # polite request, might not happen	1746	$self->reset; # polite request, might not happen
1412	}	1747	}
1413		1748
1414	sub customise_for {	1749	=item cf::map::unique_maps
1415	my ($map, $ob) = @_;
1416		1750
1417	if ($map->per_player) {	1751	Returns an arrayref of paths of all shared maps that have
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1752	instantiated unique items. May block.
1419	}
1420		1753
1421	$map	1754	=cut
1422	}
1423		1755
1424	sub emergency_save {	1756	sub unique_maps() {
1425	my $freeze_guard = cf::freeze_mainloop;	1757	my $files = aio_readdir $UNIQUEDIR
		1758	or return;
1426		1759
1427	warn "enter emergency map save\n";	1760	my @paths;
1428		1761
1429	cf::sync_job {	1762	for (@$files) {
1430	warn "begin emergency map save\n";	1763	utf8::decode $_;
1431	$_->save for values %cf::MAP;	1764	next if /\.pst$/;
		1765	next unless /^$PATH_SEP/o;
		1766
		1767	push @paths, cf::map::normalise $_;
1432	};	1768	}
1433		1769
1434	warn "end emergency map save\n";	1770	\@paths
1435	}	1771	}
1436		1772
1437	package cf;	1773	package cf;
1438		1774
1439	=back	1775	=back
1440		1776
		1777	=head3 cf::object
		1778
		1779	=cut
		1780
		1781	package cf::object;
		1782
		1783	=over 4
		1784
		1785	=item $ob->inv_recursive
		1786
		1787	Returns the inventory of the object _and_ their inventories, recursively.
		1788
		1789	=cut
		1790
		1791	sub inv_recursive_;
		1792	sub inv_recursive_ {
		1793	map { $_, inv_recursive_ $_->inv } @_
		1794	}
		1795
		1796	sub inv_recursive {
		1797	inv_recursive_ inv $_[0]
		1798	}
		1799
		1800	package cf;
		1801
		1802	=back
1441		1803
1442	=head3 cf::object::player	1804	=head3 cf::object::player
1443		1805
1444	=over 4	1806	=over 4
1445		1807
…		…
1485		1847
1486	=item $player_object->enter_link	1848	=item $player_object->enter_link
1487		1849
1488	Freezes the player and moves him/her to a special map (C<{link}>).	1850	Freezes the player and moves him/her to a special map (C<{link}>).
1489		1851
1490	The player should be reaosnably safe there for short amounts of time. You	1852	The player should be reasonably safe there for short amounts of time. You
1491	I<MUST> call C<leave_link> as soon as possible, though.	1853	I<MUST> call C<leave_link> as soon as possible, though.
1492		1854
		1855	Will never block.
		1856
1493	=item $player_object->leave_link ($map, $x, $y)	1857	=item $player_object->leave_link ($map, $x, $y)
1494		1858
1495	Moves the player out of the specila link map onto the given map. If the	1859	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	1860	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	1861	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	1862	fails, to the emergency map position.
1499		1863
1500	Might block.	1864	Might block.
1501		1865
1502	=cut	1866	=cut
		1867
		1868	sub link_map {
		1869	unless ($LINK_MAP) {
		1870	$LINK_MAP = cf::map::find "{link}"
		1871	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1872	$LINK_MAP->load;
		1873	}
		1874
		1875	$LINK_MAP
		1876	}
1503		1877
1504	sub cf::object::player::enter_link {	1878	sub cf::object::player::enter_link {
1505	my ($self) = @_;	1879	my ($self) = @_;
1506		1880
1507	$self->deactivate_recursive;	1881	$self->deactivate_recursive;
1508		1882
1509	return if $self->map == $LINK_MAP;	1883	return if UNIVERSAL::isa $self->map, "ext::map_link";
1510		1884
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1885	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	1886	if $self->map;
1513		1887
1514	$self->enter_map ($LINK_MAP, 20, 20);	1888	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1515	}	1889	}
1516		1890
1517	sub cf::object::player::leave_link {	1891	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	1892	my ($self, $map, $x, $y) = @_;
1519		1893
…		…
1537	# use -1 or undef as default coordinates, not 0, 0	1911	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	1912	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	1913	if $x <=0 && $y <= 0;
1540		1914
1541	$map->load;	1915	$map->load;
		1916	$map->load_diag;
1542		1917
		1918	return unless $self->contr->active;
1543	$self->activate_recursive;	1919	$self->activate_recursive;
		1920
		1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1544	$self->enter_map ($map, $x, $y);	1922	$self->enter_map ($map, $x, $y);
1545	}	1923	}
1546		1924
1547	cf::player->attach (	1925	cf::player->attach (
1548	on_logout => sub {	1926	on_logout => sub {
…		…
1560		1938
1561	# try to abort aborted map switching on player login :)	1939	# try to abort aborted map switching on player login :)
1562	# should happen only on crashes	1940	# should happen only on crashes
1563	if ($pl->ob->{_link_pos}) {	1941	if ($pl->ob->{_link_pos}) {
1564	$pl->ob->enter_link;	1942	$pl->ob->enter_link;
1565	cf::async {	1943	(async {
		1944	$pl->ob->reply (undef,
		1945	"There was an internal problem at your last logout, "
		1946	. "the server will try to bring you to your intended destination in a second.",
		1947	cf::NDI_RED);
1566	# we need this sleep as the login has a concurrent enter_exit running	1948	# we need this sleep as the login has a concurrent enter_exit running
1567	# and this sleep increases chances of the player not ending up in scorn	1949	# and this sleep increases chances of the player not ending up in scorn
1568	Coro::Timer::sleep 1;	1950	Coro::Timer::sleep 1;
1569	$pl->ob->leave_link;	1951	$pl->ob->leave_link;
1570	};	1952	})->prio (2);
1571	}	1953	}
1572	},	1954	},
1573	);	1955	);
1574		1956
1575	=item $player_object->goto_map ($path, $x, $y)	1957	=item $player_object->goto ($path, $x, $y)
1576		1958
1577	=cut	1959	=cut
1578		1960
1579	sub cf::object::player::goto_map {	1961	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	1962	my ($self, $path, $x, $y) = @_;
1581		1963
1582	$self->enter_link;	1964	$self->enter_link;
1583		1965
1584	(cf::async {	1966	(async {
1585	$path = new cf::path $path;	1967	my $map = eval {
1586
1587	my $map = cf::map::find $path->as_string;	1968	my $map = cf::map::find $path;
1588	$map = $map->customise_for ($self) if $map;	1969	$map = $map->customise_for ($self) if $map;
1589		1970	$map
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	1971	} or
1591	# if $map;
1592
1593	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1594		1973
1595	$self->leave_link ($map, $x, $y);	1974	$self->leave_link ($map, $x, $y);
1596	})->prio (1);	1975	})->prio (1);
1597	}	1976	}
1598		1977
…		…
1602		1981
1603	sub parse_random_map_params {	1982	sub parse_random_map_params {
1604	my ($spec) = @_;	1983	my ($spec) = @_;
1605		1984
1606	my $rmp = { # defaults	1985	my $rmp = { # defaults
1607	xsize => 10,	1986	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	1987	ysize => (cf::rndm 15, 40),
		1988	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1989	#layout => string,
1609	};	1990	};
1610		1991
1611	for (split /\n/, $spec) {	1992	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	1993	my ($k, $v) = split /\s+/, $_, 2;
1613		1994
…		…
1617	$rmp	1998	$rmp
1618	}	1999	}
1619		2000
1620	sub prepare_random_map {	2001	sub prepare_random_map {
1621	my ($exit) = @_;	2002	my ($exit) = @_;
		2003
		2004	my $guard = cf::lock_acquire "exit_prepare:$exit";
1622		2005
1623	# all this does is basically replace the /! path by	2006	# all this does is basically replace the /! path by
1624	# a new random map path (?random/...) with a seed	2007	# a new random map path (?random/...) with a seed
1625	# that depends on the exit object	2008	# that depends on the exit object
1626		2009
1627	my $rmp = parse_random_map_params $exit->msg;	2010	my $rmp = parse_random_map_params $exit->msg;
1628		2011
1629	if ($exit->map) {	2012	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	2013	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	2014	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	2015	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	2016	$rmp->{origin_y} = $exit->y;
1634	}	2017	}
1635		2018
1636	$rmp->{random_seed} ||= $exit->random_seed;	2019	$rmp->{random_seed} ||= $exit->random_seed;
1637		2020
1638	my $data = cf::to_json $rmp;	2021	my $data = cf::to_json $rmp;
1639	my $md5 = Digest::MD5::md5_hex $data;	2022	my $md5 = Digest::MD5::md5_hex $data;
		2023	my $meta = "$RANDOMDIR/$md5.meta";
1640		2024
1641	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2025	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1642	aio_write $fh, 0, (length $data), $data, 0;	2026	aio_write $fh, 0, (length $data), $data, 0;
		2027	undef $fh;
		2028	aio_rename "$meta~", $meta;
1643		2029
1644	$exit->slaying ("?random/$md5");	2030	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	2031	$exit->msg (undef);
1646	}	2032	}
1647	}	2033	}
…		…
1649	sub cf::object::player::enter_exit {	2035	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	2036	my ($self, $exit) = @_;
1651		2037
1652	return unless $self->type == cf::PLAYER;	2038	return unless $self->type == cf::PLAYER;
1653		2039
		2040	if ($exit->slaying eq "/!") {
		2041	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2042	# the problem is that $exit might not survive long enough
		2043	# so it needs to be done right now, right here
		2044	cf::sync_job { prepare_random_map $exit };
		2045	}
		2046
		2047	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2048	my $hp = $exit->stats->hp;
		2049	my $sp = $exit->stats->sp;
		2050
1654	$self->enter_link;	2051	$self->enter_link;
1655		2052
1656	(cf::async {	2053	(async {
1657	$self->deactivate_recursive; # just to be sure	2054	$self->deactivate_recursive; # just to be sure
1658	unless (eval {	2055	unless (eval {
1659	prepare_random_map $exit	2056	$self->goto ($slaying, $hp, $sp);
1660	if $exit->slaying eq "/!";
1661
1662	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1663	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1664		2057
1665	1;	2058	1;
1666	}) {	2059	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	2060	$self->message ("Something went wrong deep within the crossfire server. "
1668	. "I'll try to bring you back to the map you were before. "	2061	. "I'll try to bring you back to the map you were before. "
1669	. "Please report this to the dungeon master",	2062	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	2063	cf::NDI_UNIQUE | cf::NDI_RED);
1671		2064
1672	warn "ERROR in enter_exit: $@";	2065	warn "ERROR in enter_exit: $@";
1673	$self->leave_link;	2066	$self->leave_link;
1674	}	2067	}
1675	})->prio (1);	2068	})->prio (1);
…		…
1688		2081
1689	sub cf::client::send_drawinfo {	2082	sub cf::client::send_drawinfo {
1690	my ($self, $text, $flags) = @_;	2083	my ($self, $text, $flags) = @_;
1691		2084
1692	utf8::encode $text;	2085	utf8::encode $text;
1693	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2086	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1694	}	2087	}
1695		2088
		2089	=item $client->ext_event ($type, %msg)
		2090
		2091	Sends an exti event to the client.
		2092
		2093	=cut
		2094
		2095	sub cf::client::ext_event($$%) {
		2096	my ($self, $type, %msg) = @_;
		2097
		2098	$msg{msgtype} = "event_$type";
		2099	$self->send_packet ("ext " . cf::to_json \%msg);
		2100	}
1696		2101
1697	=item $success = $client->query ($flags, "text", \&cb)	2102	=item $success = $client->query ($flags, "text", \&cb)
1698		2103
1699	Queues a query to the client, calling the given callback with	2104	Queues a query to the client, calling the given callback with
1700	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2105	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1729	# get handled first	2134	# get handled first
1730	my $queue = delete $ns->{query_queue}	2135	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	2136	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		2137
1733	(shift @$queue)->[1]->($msg);	2138	(shift @$queue)->[1]->($msg);
		2139	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		2140
1735	push @{ $ns->{query_queue} }, @$queue;	2141	push @{ $ns->{query_queue} }, @$queue;
1736		2142
1737	if (@{ $ns->{query_queue} } == @$queue) {	2143	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	2144	if (@$queue) {
…		…
1742	}	2148	}
1743	}	2149	}
1744	},	2150	},
1745	);	2151	);
1746		2152
1747	=item $client->coro (\&cb)	2153	=item $client->async (\&cb)
1748		2154
1749	Create a new coroutine, running the specified callback. The coroutine will	2155	Create a new coroutine, running the specified callback. The coroutine will
1750	be automatically cancelled when the client gets destroyed (e.g. on logout,	2156	be automatically cancelled when the client gets destroyed (e.g. on logout,
1751	or loss of connection).	2157	or loss of connection).
1752		2158
1753	=cut	2159	=cut
1754		2160
1755	sub cf::client::coro {	2161	sub cf::client::async {
1756	my ($self, $cb) = @_;	2162	my ($self, $cb) = @_;
1757		2163
1758	my $coro = &cf::async ($cb);	2164	my $coro = &Coro::async ($cb);
1759		2165
1760	$coro->on_destroy (sub {	2166	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	2167	delete $self->{_coro}{$coro+0};
1762	});	2168	});
1763		2169
…		…
1796		2202
1797	# here we export the classes and methods available to script code	2203	# here we export the classes and methods available to script code
1798		2204
1799	=pod	2205	=pod
1800		2206
1801	The following fucntions and emthods are available within a safe environment:	2207	The following functions and methods are available within a safe environment:
1802		2208
1803	cf::object contr pay_amount pay_player map	2209	cf::object contr pay_amount pay_player map
1804	cf::object::player player	2210	cf::object::player player
1805	cf::player peaceful	2211	cf::player peaceful
1806	cf::map trigger	2212	cf::map trigger
…		…
1891	#############################################################################	2297	#############################################################################
1892		2298
1893	=head2 EXTENSION DATABASE SUPPORT	2299	=head2 EXTENSION DATABASE SUPPORT
1894		2300
1895	Crossfire maintains a very simple database for extension use. It can	2301	Crossfire maintains a very simple database for extension use. It can
1896	currently store anything that can be serialised using Storable, which	2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1897	excludes objects.	2303	convert to/from binary).
1898		2304
1899	The parameter C<$family> should best start with the name of the extension	2305	The parameter C<$family> should best start with the name of the extension
1900	using it, it should be unique.	2306	using it, it should be unique.
1901		2307
1902	=over 4	2308	=over 4
1903		2309
1904	=item $hashref = cf::db_get $family
1905
1906	Return a hashref for use by the extension C<$family>, which can be
1907	modified. After modifications, you have to call C<cf::db_dirty> or
1908	C<cf::db_sync>.
1909
1910	=item $value = cf::db_get $family => $key	2310	=item $value = cf::db_get $family => $key
1911		2311
1912	Returns a single value from the database	2312	Returns a single value from the database.
1913
1914	=item cf::db_put $family => $hashref
1915
1916	Stores the given family hashref into the database. Updates are delayed, if
1917	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1918		2313
1919	=item cf::db_put $family => $key => $value	2314	=item cf::db_put $family => $key => $value
1920		2315
1921	Stores the given C<$value> in the family hash. Updates are delayed, if you	2316	Stores the given C<$value> in the family.
1922	want the data to be synced to disk immediately, use C<cf::db_sync>.
1923
1924	=item cf::db_dirty
1925
1926	Marks the database as dirty, to be updated at a later time.
1927
1928	=item cf::db_sync
1929
1930	Immediately write the database to disk I<if it is dirty>.
1931		2317
1932	=cut	2318	=cut
1933		2319
1934	our $DB;	2320	our $DB;
1935		2321
1936	{	2322	sub db_init {
1937	my $path = cf::localdir . "/database.pst";	2323	unless ($DB) {
		2324	$DB = BDB::db_create $DB_ENV;
1938		2325
1939	sub db_load() {	2326	cf::sync_job {
1940	$DB = stat $path ? Storable::retrieve $path : { };	2327	eval {
1941	}	2328	$DB->set_flags (BDB::CHKSUM);
1942		2329
1943	my $pid;	2330	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1944		2331	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1945	sub db_save() {	2332	cf::cleanup "db_open(db): $!" if $!;
1946	waitpid $pid, 0 if $pid;	2333	};
1947	if (0 == ($pid = fork)) {	2334	cf::cleanup "db_open(db): $@" if $@;
1948	$DB->{_meta}{version} = 1;
1949	Storable::nstore $DB, "$path~";
1950	rename "$path~", $path;
1951	cf::_exit 0 if defined $pid;
1952	}	2335	};
1953	}
1954
1955	my $dirty;
1956
1957	sub db_sync() {
1958	db_save if $dirty;
1959	undef $dirty;
1960	}
1961
1962	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1963	db_sync;
1964	});	2336	}
		2337	}
1965		2338
1966	sub db_dirty() {
1967	$dirty = 1;
1968	$idle->start;
1969	}
1970
1971	sub db_get($;$) {	2339	sub db_get($$) {
1972	@_ >= 2	2340	my $key = "$_[0]/$_[1]";
1973	? $DB->{$_[0]}{$_[1]}
1974	: ($DB->{$_[0]} ||= { })
1975	}
1976		2341
		2342	cf::sync_job {
		2343	BDB::db_get $DB, undef, $key, my $data;
		2344
		2345	$! ? ()
		2346	: $data
		2347	}
		2348	}
		2349
1977	sub db_put($$;$) {	2350	sub db_put($$$) {
1978	if (@_ >= 3) {	2351	BDB::dbreq_pri 4;
1979	$DB->{$_[0]}{$_[1]} = $_[2];	2352	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1980	} else {	2353	}
1981	$DB->{$_[0]} = $_[1];
1982	}
1983	db_dirty;
1984	}
1985		2354
1986	cf::global->attach (	2355	=item cf::cache $id => [$paths...], $processversion => $process
1987	prio => 10000,	2356
1988	on_cleanup => sub {	2357	Generic caching function that returns the value of the resource $id,
1989	db_sync;	2358	caching and regenerating as required.
		2359
		2360	This function can block.
		2361
		2362	=cut
		2363
		2364	sub cache {
		2365	my ($id, $src, $processversion, $process) = @_;
		2366
		2367	my $meta =
		2368	join "\x00",
		2369	$processversion,
		2370	map {
		2371	aio_stat $_
		2372	and Carp::croak "$_: $!";
		2373
		2374	($_, (stat _)[7,9])
		2375	} @$src;
		2376
		2377	my $dbmeta = db_get cache => "$id/meta";
		2378	if ($dbmeta ne $meta) {
		2379	# changed, we may need to process
		2380
		2381	my @data;
		2382	my $md5;
		2383
		2384	for (0 .. $#$src) {
		2385	0 <= aio_load $src->[$_], $data[$_]
		2386	or Carp::croak "$src->[$_]: $!";
1990	},	2387	}
1991	);	2388
		2389	# if processing is expensive, check
		2390	# checksum first
		2391	if (1) {
		2392	$md5 =
		2393	join "\x00",
		2394	$processversion,
		2395	map {
		2396	Coro::cede;
		2397	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2398	} 0.. $#$src;
		2399
		2400
		2401	my $dbmd5 = db_get cache => "$id/md5";
		2402	if ($dbmd5 eq $md5) {
		2403	db_put cache => "$id/meta", $meta;
		2404
		2405	return db_get cache => "$id/data";
		2406	}
		2407	}
		2408
		2409	my $t1 = Time::HiRes::time;
		2410	my $data = $process->(\@data);
		2411	my $t2 = Time::HiRes::time;
		2412
		2413	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2414
		2415	db_put cache => "$id/data", $data;
		2416	db_put cache => "$id/md5" , $md5;
		2417	db_put cache => "$id/meta", $meta;
		2418
		2419	return $data;
		2420	}
		2421
		2422	db_get cache => "$id/data"
1992	}	2423	}
		2424
		2425	=item fork_call { }, $args
		2426
		2427	Executes the given code block with the given arguments in a seperate
		2428	process, returning the results. Everything must be serialisable with
		2429	Coro::Storable. May, of course, block. Note that the executed sub may
		2430	never block itself or use any form of Event handling.
		2431
		2432	=cut
		2433
		2434	sub fork_call(&@) {
		2435	my ($cb, @args) = @_;
		2436
		2437	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2438	# or die "socketpair: $!";
		2439	pipe my $fh1, my $fh2
		2440	or die "pipe: $!";
		2441
		2442	if (my $pid = fork) {
		2443	close $fh2;
		2444
		2445	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2446	$res = Coro::Storable::thaw $res;
		2447
		2448	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2449
		2450	die $$res unless "ARRAY" eq ref $res;
		2451
		2452	return wantarray ? @$res : $res->[-1];
		2453	} else {
		2454	reset_signals;
		2455	local $SIG{__WARN__};
		2456	local $SIG{__DIE__};
		2457	eval {
		2458	close $fh1;
		2459
		2460	my @res = eval { $cb->(@args) };
		2461	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2462	};
		2463
		2464	warn $@ if $@;
		2465	_exit 0;
		2466	}
		2467	}
		2468
		2469
1993		2470
1994	#############################################################################	2471	#############################################################################
1995	# the server's main()	2472	# the server's init and main functions
		2473
		2474	sub load_facedata($) {
		2475	my ($path) = @_;
		2476
		2477	warn "loading facedata from $path\n";
		2478
		2479	my $facedata;
		2480	0 < aio_load $path, $facedata
		2481	or die "$path: $!";
		2482
		2483	$facedata = Coro::Storable::thaw $facedata;
		2484
		2485	$facedata->{version} == 2
		2486	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2487
		2488	{
		2489	my $faces = $facedata->{faceinfo};
		2490
		2491	while (my ($face, $info) = each %$faces) {
		2492	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2493	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2494	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2495	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2496	Coro::cede;
		2497	}
		2498
		2499	while (my ($face, $info) = each %$faces) {
		2500	next unless $info->{smooth};
		2501	my $idx = cf::face::find $face
		2502	or next;
		2503	if (my $smooth = cf::face::find $info->{smooth}) {
		2504	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2505	} else {
		2506	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2507	}
		2508	Coro::cede;
		2509	}
		2510	}
		2511
		2512	{
		2513	my $anims = $facedata->{animinfo};
		2514
		2515	while (my ($anim, $info) = each %$anims) {
		2516	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2517	Coro::cede;
		2518	}
		2519
		2520	cf::anim::invalidate_all; # d'oh
		2521	}
		2522
		2523	1
		2524	}
		2525
		2526	sub reload_regions {
		2527	load_resource_file "$MAPDIR/regions"
		2528	or die "unable to load regions file\n";
		2529	}
		2530
		2531	sub reload_facedata {
		2532	load_facedata "$DATADIR/facedata"
		2533	or die "unable to load facedata\n";
		2534	}
		2535
		2536	sub reload_archetypes {
		2537	load_resource_file "$DATADIR/archetypes"
		2538	or die "unable to load archetypes\n";
		2539	}
		2540
		2541	sub reload_treasures {
		2542	load_resource_file "$DATADIR/treasures"
		2543	or die "unable to load treasurelists\n";
		2544	}
		2545
		2546	sub reload_resources {
		2547	warn "reloading resource files...\n";
		2548
		2549	reload_regions;
		2550	reload_facedata;
		2551	reload_archetypes;
		2552	reload_treasures;
		2553
		2554	warn "finished reloading resource files\n";
		2555	}
		2556
		2557	sub init {
		2558	reload_resources;
		2559	}
1996		2560
1997	sub cfg_load {	2561	sub cfg_load {
1998	open my $fh, "<:utf8", cf::confdir . "/config"	2562	open my $fh, "<:utf8", "$CONFDIR/config"
1999	or return;	2563	or return;
2000		2564
2001	local $/;	2565	local $/;
2002	*CFG = YAML::Syck::Load <$fh>;	2566	*CFG = YAML::Syck::Load <$fh>;
2003		2567
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2568	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2005		2569
		2570	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2571	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2572
2006	if (exists $CFG{mlockall}) {	2573	if (exists $CFG{mlockall}) {
2007	eval {	2574	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	2575	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	2576	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	2577	};
2011	warn $@ if $@;	2578	warn $@ if $@;
2012	}	2579	}
2013	}	2580	}
2014		2581
2015	sub main {	2582	sub main {
2016	# we must not ever block the main coroutine	2583	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	2584	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2585	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	2586	(async {
2020	Event::one_event;	2587	Event::one_event;
2021	})->();	2588	})->prio (Coro::PRIO_MAX);
2022	};	2589	};
2023		2590
2024	cfg_load;	2591	cfg_load;
2025	db_load;	2592	db_init;
2026	load_extensions;	2593	load_extensions;
		2594
		2595	$TICK_WATCHER->start;
2027	Event::loop;	2596	Event::loop;
2028	}	2597	}
2029		2598
2030	#############################################################################	2599	#############################################################################
2031	# initialisation	2600	# initialisation and cleanup
2032		2601
		2602	# install some emergency cleanup handlers
		2603	BEGIN {
		2604	for my $signal (qw(INT HUP TERM)) {
		2605	Event->signal (
		2606	reentrant => 0,
		2607	data => WF_AUTOCANCEL,
		2608	signal => $signal,
		2609	prio => 0,
		2610	cb => sub {
		2611	cf::cleanup "SIG$signal";
		2612	},
		2613	);
		2614	}
		2615	}
		2616
		2617	sub emergency_save() {
		2618	my $freeze_guard = cf::freeze_mainloop;
		2619
		2620	warn "enter emergency perl save\n";
		2621
		2622	cf::sync_job {
		2623	# use a peculiar iteration method to avoid tripping on perl
		2624	# refcount bugs in for. also avoids problems with players
		2625	# and maps saved/destroyed asynchronously.
		2626	warn "begin emergency player save\n";
		2627	for my $login (keys %cf::PLAYER) {
		2628	my $pl = $cf::PLAYER{$login} or next;
		2629	$pl->valid or next;
		2630	$pl->save;
		2631	}
		2632	warn "end emergency player save\n";
		2633
		2634	warn "begin emergency map save\n";
		2635	for my $path (keys %cf::MAP) {
		2636	my $map = $cf::MAP{$path} or next;
		2637	$map->valid or next;
		2638	$map->save;
		2639	}
		2640	warn "end emergency map save\n";
		2641
		2642	warn "begin emergency database checkpoint\n";
		2643	BDB::db_env_txn_checkpoint $DB_ENV;
		2644	warn "end emergency database checkpoint\n";
		2645	};
		2646
		2647	warn "leave emergency perl save\n";
		2648	}
		2649
		2650	sub post_cleanup {
		2651	my ($make_core) = @_;
		2652
		2653	warn Carp::longmess "post_cleanup backtrace"
		2654	if $make_core;
		2655	}
		2656
2033	sub reload() {	2657	sub do_reload_perl() {
2034	# can/must only be called in main	2658	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	2659	if ($Coro::current != $Coro::main) {
2036	warn "can only reload from main coroutine\n";	2660	warn "can only reload from main coroutine";
2037	return;	2661	return;
2038	}	2662	}
2039		2663
2040	warn "reloading...";	2664	warn "reloading...";
2041		2665
2042	my $guard = freeze_mainloop;	2666	warn "entering sync_job";
		2667
		2668	cf::sync_job {
		2669	cf::write_runtime; # external watchdog should not bark
2043	cf::emergency_save;	2670	cf::emergency_save;
		2671	cf::write_runtime; # external watchdog should not bark
2044		2672
2045	eval {	2673	warn "syncing database to disk";
		2674	BDB::db_env_txn_checkpoint $DB_ENV;
		2675
2046	# if anything goes wrong in here, we should simply crash as we already saved	2676	# if anything goes wrong in here, we should simply crash as we already saved
2047		2677
2048	# cancel all watchers	2678	warn "cancelling all WF_AUTOCANCEL watchers";
2049	for (Event::all_watchers) {	2679	for (Event::all_watchers) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;	2680	$_->cancel if $_->data & WF_AUTOCANCEL;
2051	}	2681	}
2052		2682
		2683	warn "flushing outstanding aio requests";
		2684	for (;;) {
		2685	BDB::flush;
		2686	IO::AIO::flush;
		2687	Coro::cede;
		2688	last unless IO::AIO::nreqs || BDB::nreqs;
		2689	warn "iterate...";
		2690	}
		2691
		2692	++$RELOAD;
		2693
2053	# cancel all extension coros	2694	warn "cancelling all extension coros";
2054	$_->cancel for values %EXT_CORO;	2695	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();	2696	%EXT_CORO = ();
2056		2697
2057	# unload all extensions	2698	warn "removing commands";
2058	for (@exts) {	2699	%COMMAND = ();
		2700
		2701	warn "removing ext commands";
		2702	%EXTCMD = ();
		2703
		2704	warn "unloading/nuking all extensions";
		2705	for my $pkg (@EXTS) {
2059	warn "unloading <$_>";	2706	warn "... unloading $pkg";
2060	unload_extension $_;	2707
		2708	if (my $cb = $pkg->can ("unload")) {
		2709	eval {
		2710	$cb->($pkg);
		2711	1
		2712	} or warn "$pkg unloaded, but with errors: $@";
2061	}	2713	}
2062		2714
		2715	warn "... nuking $pkg";
		2716	Symbol::delete_package $pkg;
		2717	}
		2718
2063	# unload all modules loaded from $LIBDIR	2719	warn "unloading all perl modules loaded from $LIBDIR";
2064	while (my ($k, $v) = each %INC) {	2720	while (my ($k, $v) = each %INC) {
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2721	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066		2722
2067	warn "removing <$k>";	2723	warn "... unloading $k";
2068	delete $INC{$k};	2724	delete $INC{$k};
2069		2725
2070	$k =~ s/\.pm$//;	2726	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;	2727	$k =~ s/\//::/g;
2072		2728
…		…
2075	}	2731	}
2076		2732
2077	Symbol::delete_package $k;	2733	Symbol::delete_package $k;
2078	}	2734	}
2079		2735
2080	# sync database to disk
2081	cf::db_sync;
2082	IO::AIO::flush;
2083
2084	# get rid of safe::, as good as possible	2736	warn "getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	2737	Symbol::delete_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2738	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		2739
2088	# remove register_script_function callbacks
2089	# TODO
2090
2091	# unload cf.pm "a bit"	2740	warn "unloading cf.pm \"a bit\"";
2092	delete $INC{"cf.pm"};	2741	delete $INC{"cf.pm"};
		2742	delete $INC{"cf/pod.pm"};
2093		2743
2094	# don't, removes xs symbols, too,	2744	# don't, removes xs symbols, too,
2095	# and global variables created in xs	2745	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	2746	#Symbol::delete_package __PACKAGE__;
2097		2747
2098	# reload cf.pm	2748	warn "unload completed, starting to reload now";
		2749
2099	warn "reloading cf.pm";	2750	warn "reloading cf.pm";
2100	require cf;	2751	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2102		2753
2103	# load config and database again	2754	warn "loading config and database again";
2104	cf::cfg_load;	2755	cf::cfg_load;
2105	cf::db_load;
2106		2756
2107	# load extensions
2108	warn "load extensions";	2757	warn "loading extensions";
2109	cf::load_extensions;	2758	cf::load_extensions;
2110		2759
2111	# reattach attachments to objects	2760	warn "reattaching attachments to objects/players";
2112	warn "reattach";	2761	_global_reattach; # objects, sockets
2113	_global_reattach;	2762	warn "reattaching attachments to maps";
2114	};	2763	reattach $_ for values %MAP;
		2764	warn "reattaching attachments to players";
		2765	reattach $_ for values %PLAYER;
2115		2766
2116	if ($@) {	2767	warn "leaving sync_job";
		2768
		2769	1
		2770	} or do {
2117	warn $@;	2771	warn $@;
2118	warn "error while reloading, exiting.";	2772	warn "error while reloading, exiting.";
2119	exit 1;	2773	exit 1;
2120	}	2774	};
2121		2775
2122	warn "reloaded successfully";	2776	warn "reloaded";
2123	};	2777	};
2124		2778
2125	#############################################################################	2779	our $RELOAD_WATCHER; # used only during reload
2126		2780
2127	unless ($LINK_MAP) {	2781	sub reload_perl() {
2128	$LINK_MAP = cf::map::new;	2782	# doing reload synchronously and two reloads happen back-to-back,
		2783	# coro crashes during coro_state_free->destroy here.
2129		2784
2130	$LINK_MAP->width (41);	2785	$RELOAD_WATCHER ||= Event->timer (
2131	$LINK_MAP->height (41);	2786	reentrant => 0,
2132	$LINK_MAP->alloc;
2133	$LINK_MAP->path ("{link}");
2134	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2135	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2136
2137	# dirty hack because... archetypes are not yet loaded
2138	Event->timer (
2139	after => 2,	2787	after => 0,
		2788	data => WF_AUTOCANCEL,
2140	cb => sub {	2789	cb => sub {
2141	$_[0]->w->cancel;	2790	do_reload_perl;
2142		2791	undef $RELOAD_WATCHER;
2143	# provide some exits "home"
2144	my $exit = cf::object::new "exit";
2145
2146	$exit->slaying ($EMERGENCY_POSITION->[0]);
2147	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2148	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2149
2150	$LINK_MAP->insert ($exit->clone, 19, 19);
2151	$LINK_MAP->insert ($exit->clone, 19, 20);
2152	$LINK_MAP->insert ($exit->clone, 19, 21);
2153	$LINK_MAP->insert ($exit->clone, 20, 19);
2154	$LINK_MAP->insert ($exit->clone, 20, 21);
2155	$LINK_MAP->insert ($exit->clone, 21, 19);
2156	$LINK_MAP->insert ($exit->clone, 21, 20);
2157	$LINK_MAP->insert ($exit->clone, 21, 21);
2158
2159	$exit->destroy;
2160	});	2792	},
2161		2793	);
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}	2794	}
2167
2168	register "<global>", __PACKAGE__;
2169		2795
2170	register_command "reload" => sub {	2796	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	2797	my ($who, $arg) = @_;
2172		2798
2173	if ($who->flag (FLAG_WIZ)) {	2799	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");
2175	reload;
2176	$who->message ("end of reload.");	2800	$who->message ("reloading server.");
		2801	async { reload_perl };
2177	}	2802	}
2178	};	2803	};
2179		2804
2180	unshift @INC, $LIBDIR;	2805	unshift @INC, $LIBDIR;
		2806
		2807	my $bug_warning = 0;
		2808
		2809	our @WAIT_FOR_TICK;
		2810	our @WAIT_FOR_TICK_BEGIN;
		2811
		2812	sub wait_for_tick {
		2813	return unless $TICK_WATCHER->is_active;
		2814	return if $Coro::current == $Coro::main;
		2815
		2816	my $signal = new Coro::Signal;
		2817	push @WAIT_FOR_TICK, $signal;
		2818	$signal->wait;
		2819	}
		2820
		2821	sub wait_for_tick_begin {
		2822	return unless $TICK_WATCHER->is_active;
		2823	return if $Coro::current == $Coro::main;
		2824
		2825	my $signal = new Coro::Signal;
		2826	push @WAIT_FOR_TICK_BEGIN, $signal;
		2827	$signal->wait;
		2828	}
2181		2829
2182	$TICK_WATCHER = Event->timer (	2830	$TICK_WATCHER = Event->timer (
2183	reentrant => 0,	2831	reentrant => 0,
		2832	parked => 1,
2184	prio => 0,	2833	prio => 0,
2185	at => $NEXT_TICK || $TICK,	2834	at => $NEXT_TICK || $TICK,
2186	data => WF_AUTOCANCEL,	2835	data => WF_AUTOCANCEL,
2187	cb => sub {	2836	cb => sub {
		2837	if ($Coro::current != $Coro::main) {
		2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2839	unless ++$bug_warning > 10;
		2840	return;
		2841	}
		2842
		2843	$NOW = Event::time;
		2844
2188	cf::server_tick; # one server iteration	2845	cf::server_tick; # one server iteration
		2846
2189	$RUNTIME += $TICK;	2847	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;	2848	$NEXT_TICK += $TICK;
2191		2849
		2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2851	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2852	Coro::async_pool {
		2853	write_runtime
		2854	or warn "ERROR: unable to write runtime file: $!";
		2855	};
		2856	}
		2857
		2858	# my $AFTER = Event::time;
		2859	# warn $AFTER - $NOW;#d#
		2860
2192	# if we are delayed by four ticks or more, skip them all	2861	# if we are delayed by four ticks or more, skip them all
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2194		2863
2195	$TICK_WATCHER->at ($NEXT_TICK);	2864	$TICK_WATCHER->at ($NEXT_TICK);
2196	$TICK_WATCHER->start;	2865	$TICK_WATCHER->start;
		2866
		2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2868	$sig->send;
		2869	}
		2870	while (my $sig = shift @WAIT_FOR_TICK) {
		2871	$sig->send;
		2872	}
		2873
		2874	_post_tick;
2197	},	2875	},
2198	);	2876	);
2199		2877
		2878	{
2200	IO::AIO::max_poll_time $TICK * 0.2;	2879	BDB::max_poll_time $TICK * 0.1;
2201		2880	$BDB_POLL_WATCHER = Event->io (
2202	Event->io (	2881	reentrant => 0,
2203	fd => IO::AIO::poll_fileno,	2882	fd => BDB::poll_fileno,
2204	poll => 'r',	2883	poll => 'r',
2205	prio => 5,	2884	prio => 0,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209
2210	Event->timer (
2211	data => WF_AUTOCANCEL,	2885	data => WF_AUTOCANCEL,
2212	after => 0,	2886	cb => \&BDB::poll_cb,
2213	interval => 10,	2887	);
2214	cb => sub {	2888	BDB::min_parallel 8;
2215	(Coro::unblock_sub {	2889
2216	write_runtime	2890	BDB::set_sync_prepare {
2217	or warn "ERROR: unable to write runtime file: $!";	2891	my $status;
		2892	my $current = $Coro::current;
		2893	(
		2894	sub {
		2895	$status = $!;
		2896	$current->ready; undef $current;
		2897	},
		2898	sub {
		2899	Coro::schedule while defined $current;
		2900	$! = $status;
		2901	},
		2902	)
		2903	};
		2904
		2905	unless ($DB_ENV) {
		2906	$DB_ENV = BDB::db_env_create;
		2907
		2908	cf::sync_job {
		2909	eval {
		2910	BDB::db_env_open
		2911	$DB_ENV,
		2912	$BDBDIR,
		2913	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2914	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2915	0666;
		2916
		2917	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2918
		2919	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2920	$DB_ENV->set_lk_detect;
		2921	};
		2922
		2923	cf::cleanup "db_env_open(db): $@" if $@;
2218	})->();	2924	};
2219	},	2925	}
2220	);	2926	}
		2927
		2928	{
		2929	IO::AIO::min_parallel 8;
		2930
		2931	undef $Coro::AIO::WATCHER;
		2932	IO::AIO::max_poll_time $TICK * 0.1;
		2933	$AIO_POLL_WATCHER = Event->io (
		2934	reentrant => 0,
		2935	data => WF_AUTOCANCEL,
		2936	fd => IO::AIO::poll_fileno,
		2937	poll => 'r',
		2938	prio => 6,
		2939	cb => \&IO::AIO::poll_cb,
		2940	);
		2941	}
		2942
		2943	my $_log_backtrace;
		2944
		2945	sub _log_backtrace {
		2946	my ($msg, @addr) = @_;
		2947
		2948	$msg =~ s/\n//;
		2949
		2950	# limit the # of concurrent backtraces
		2951	if ($_log_backtrace < 2) {
		2952	++$_log_backtrace;
		2953	async {
		2954	my @bt = fork_call {
		2955	@addr = map { sprintf "%x", $_ } @addr;
		2956	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2957	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2958	or die "addr2line: $!";
		2959
		2960	my @funcs;
		2961	my @res = <$fh>;
		2962	chomp for @res;
		2963	while (@res) {
		2964	my ($func, $line) = splice @res, 0, 2, ();
		2965	push @funcs, "[$func] $line";
		2966	}
		2967
		2968	@funcs
		2969	};
		2970
		2971	LOG llevInfo, "[ABT] $msg\n";
		2972	LOG llevInfo, "[ABT] $_\n" for @bt;
		2973	--$_log_backtrace;
		2974	};
		2975	} else {
		2976	LOG llevInfo, "[ABT] $msg\n";
		2977	LOG llevInfo, "[ABT] [suppressed]\n";
		2978	}
		2979	}
		2980
		2981	# load additional modules
		2982	use cf::pod;
2221		2983
2222	END { cf::emergency_save }	2984	END { cf::emergency_save }
2223		2985
2224	1	2986	1
2225		2987

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