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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC vs.
Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		94
58	binmode STDOUT;	95	binmode STDOUT;
59	binmode STDERR;	96	binmode STDERR;
60		97
61	# read virtual server time, if available	98	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
66	}	103	}
67		104
68	mkdir cf::localdir;	105	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		107
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	108	our $EMERGENCY_POSITION;
		109
		110	sub cf::map::normalise;
77		111
78	#############################################################################	112	#############################################################################
79		113
80	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
81		115
…		…
88	=item $cf::RUNTIME	122	=item $cf::RUNTIME
89		123
90	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
91	every server tick.	125	every server tick.
92		126
93	=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
94		130
95	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		135
98	=item $cf::NOW	136	=item $cf::NOW
99		137
100	The time of the last (current) server tick.	138	The time of the last (current) server tick.
101		139
…		…
105		143
106	=item %cf::CFG	144	=item %cf::CFG
107		145
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	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.
110		154
111	=back	155	=back
112		156
113	=cut	157	=cut
114		158
115	BEGIN {	159	BEGIN {
116	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	161	my $msg = join "", @_;
118	utf8::encode $msg;
119		162
120	$msg .= "\n"	163	$msg .= "\n"
121	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
122		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
123	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
124	};	170	};
125	}	171	}
126		172
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
146		192
147	$Event::DIED = sub {	193	$Event::DIED = sub {
148	warn "error in event callback: @_";	194	warn "error in event callback: @_";
149	};	195	};
150		196
151	my %ext_pkg;
152	my @exts;
153	my @hook;
154
155	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
156		198
157	=over 4	199	=over 4
158		200
159	=cut	201	=item dumpval $ref
160		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
161	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
162		225
163	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
164		227
165	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
166		229
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
175		231
176	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
177		233
178	=cut
179
180	sub to_json($) {
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184
185	=item my $guard = cf::guard { BLOCK }
186
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206
207	=item cf::lock_wait $string	234	=item cf::lock_wait $string
208		235
209	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
210		237
211	=item my $lock = cf::lock_acquire $string	238	=item my $lock = cf::lock_acquire $string
212		239
213	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
214	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,
215	for example when the coroutine gets canceled), the lock is automatically	242	for example when the coroutine gets canceled), the lock is automatically
216	returned.	243	returned.
217		244
218	Lock names should begin with a unique identifier (for example, find_map	245	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	246	uses map_find and cf::map::load uses map_load).
		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
220		251
221	=cut	252	=cut
222		253
223	our %LOCK;	254	our %LOCK;
224		255
…		…
238	# wait, to be sure we are not locked	269	# wait, to be sure we are not locked
239	lock_wait $key;	270	lock_wait $key;
240		271
241	$LOCK{$key} = [];	272	$LOCK{$key} = [];
242		273
243	cf::guard {	274	Coro::guard {
244	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
246	}	277	}
247	}	278	}
248		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
		286	sub freeze_mainloop {
		287	return unless $TICK_WATCHER->is_active;
		288
		289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
		292	$TICK_WATCHER->stop;
		293	$guard
		294	}
		295
249	=item cf::async { BLOCK }	296	=item cf::async { BLOCK }
250		297
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	298	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
253		301
254	=cut	302	=cut
255		303
256	sub async(&) {	304	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		305
265	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
266		307
267	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
268	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
…		…
282	# this is the main coro, too bad, we have to block	323	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	324	# till the operation succeeds, freezing the server :/
284		325
285	# TODO: use suspend/resume instead	326	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	327	# (but this is cancel-safe)
287	local $FREEZE = 1;	328	my $freeze_guard = freeze_mainloop;
288		329
289	my $busy = 1;	330	my $busy = 1;
290	my @res;	331	my @res;
291		332
292	(Coro::async {	333	(async {
293	@res = eval { $job->() };	334	@res = eval { $job->() };
294	warn $@ if $@;	335	warn $@ if $@;
295	undef $busy;	336	undef $busy;
296	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
297		338
298	while ($busy) {	339	while ($busy) {
299	Coro::cede_notself;	340	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	341	}
302		342
303	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
304	} else {	344	} else {
305	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
306		346
307	$job->()	347	$job->()
308	}	348	}
309	}	349	}
310		350
311	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
312		352
313	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
315		355
316	=cut	356	=cut
317		357
318	sub coro(&) {	358	sub async_ext(&) {
319	my $cb = shift;	359	my $cb = shift;
320		360
321	my $coro = &cf::async ($cb);	361	my $coro = &Coro::async ($cb);
322		362
323	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
325	});	365	});
326	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
327		367
328	$coro	368	$coro
329	}	369	}
330		370
331	sub write_runtime {	371	sub write_runtime {
332	my $runtime = cf::localdir . "/runtime";	372	my $runtime = "$LOCALDIR/runtime";
333		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#
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	385	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
335	or return;	386	or return;
336		387
		388	my $value = $cf::RUNTIME + 90 + 10;
337	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
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0	392	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;	393	and return;
340		394
		395	# always fsync - this file is important
341	aio_fsync $fh	396	aio_fsync $fh
342	and return;	397	and return;
343		398
		399	# touch it again to show we are up-to-date
		400	utime undef, undef, $fh;
		401
344	close $fh	402	close $fh
345	or return;	403	or return;
346		404
347	aio_rename "$runtime~", $runtime	405	aio_rename "$runtime~", $runtime
348	and return;	406	and return;
349		407
		408	warn "... done writing runtime.\n";#d#
		409
350	1	410	1
351	}	411	}
352		412
		413	=item cf::datalog type => key => value, ...
		414
		415	Log a datalog packet of the given type with the given key-value pairs.
		416
		417	=cut
		418
		419	sub datalog($@) {
		420	my ($type, %kv) = @_;
		421	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		422	}
		423
353	=back	424	=back
354		425
355	=cut	426	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		427
477	#############################################################################	428	#############################################################################
478		429
479	=head2 ATTACHABLE OBJECTS	430	=head2 ATTACHABLE OBJECTS
480		431
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	557	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	558	our @CB_MAP = ();
608		559
609	my %attachment;	560	my %attachment;
610		561
		562	sub cf::attachable::thawer_merge {
		563	# simply override everything except _meta
		564	local $_[0]{_meta};
		565	%{$_[0]} = %{$_[1]};
		566	}
		567
611	sub _attach_cb($$$$) {	568	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	569	my ($registry, $event, $prio, $cb) = @_;
613		570
614	use sort 'stable';	571	use sort 'stable';
615		572
…		…
786	# object support	743	# object support
787		744
788	sub reattach {	745	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	746	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	747	my ($obj) = @_;
		748
		749	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		750
792	my $registry = $obj->registry;	751	my $registry = $obj->registry;
793		752
794	@$registry = ();	753	@$registry = ();
795		754
…		…
842	$filename, length $$rdata, scalar @$objs;	801	$filename, length $$rdata, scalar @$objs;
843		802
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	803	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	804	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	805	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	806	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	807	close $fh;
849		808
850	if (@$objs) {	809	if (@$objs) {
851	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) {
852	chmod SAVE_MODE, $fh;	811	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	812	my $data = Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	813	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	814	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	815	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	816	aio_rename "$filename.pst~", "$filename.pst";
858	}	817	}
859	} else {	818	} else {
860	aio_unlink "$filename.pst";	819	aio_unlink "$filename.pst";
…		…
927	=cut	886	=cut
928		887
929	sub register_extcmd {	888	sub register_extcmd {
930	my ($name, $cb) = @_;	889	my ($name, $cb) = @_;
931		890
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	891	$EXTCMD{$name} = $cb;
936	}	892	}
937		893
938	cf::player->attach (	894	cf::player->attach (
939	on_command => sub {	895	on_command => sub {
940	my ($pl, $name, $params) = @_;	896	my ($pl, $name, $params) = @_;
…		…
953		909
954	my $msg = eval { from_json $buf };	910	my $msg = eval { from_json $buf };
955		911
956	if (ref $msg) {	912	if (ref $msg) {
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	913	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	914	if (my %reply = $cb->($pl, $msg)) {
959	$pl->ext_reply ($msg->{msgid}, %reply);	915	$pl->ext_reply ($msg->{msgid}, %reply);
960	}	916	}
961	}	917	}
962	} else {	918	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	919	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
965		921
966	cf::override;	922	cf::override;
967	},	923	},
968	);	924	);
969		925
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	926	sub load_extension {
977	my ($path) = @_;	927	my ($path) = @_;
978		928
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	929	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
980	my $base = $1;	930	my $base = $1;
981	my $pkg = $1;	931	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;	932	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";	933	$pkg = "ext::$pkg";
984		934
985	warn "loading '$path' into '$pkg'\n";	935	warn "... loading '$path' into '$pkg'\n";
986		936
987	open my $fh, "<:utf8", $path	937	open my $fh, "<:utf8", $path
988	or die "$path: $!";	938	or die "$path: $!";
989		939
990	my $source =	940	my $source =
991	"package $pkg; use strict; use utf8;\n"	941	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"	942	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })	943	. (do { local $/; <$fh> })
994	. "\n};\n1";	944	. "\n};\n1";
995		945
996	eval $source	946	unless (eval $source) {
997	or die $@ ? "$path: $@\n"	947	my $msg = $@ ? "$path: $@\n"
998	: "extension disabled.\n";	948	: "extension disabled.\n";
999		949	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1000	push @exts, $pkg;	950	warn $@;
1001	$ext_pkg{$base} = $pkg;	951	warn "mandatory extension failed to load, exiting.\n";
1002		952	exit 1;
1003	# no strict 'refs';	953	}
1004	# @{"$pkg\::ISA"} = ext::;	954	die $@;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	955	}
1019		956
1020	# remove commands	957	push @EXTS, $pkg;
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}	958	}
1045		959
1046	sub load_extensions {	960	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {	961	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;	962	next unless -r $ext;
…		…
1052	} or warn "$ext not loaded: $@";	966	} or warn "$ext not loaded: $@";
1053	}	967	}
1054	}	968	}
1055		969
1056	#############################################################################	970	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093		971
1094	=head2 CORE EXTENSIONS	972	=head2 CORE EXTENSIONS
1095		973
1096	Functions and methods that extend core crossfire objects.	974	Functions and methods that extend core crossfire objects.
1097		975
		976	=cut
		977
		978	package cf::player;
		979
		980	use Coro::AIO;
		981
1098	=head3 cf::player	982	=head3 cf::player
1099		983
1100	=over 4	984	=over 4
1101		985
1102	=item cf::player::exists $login	986	=item cf::player::find $login
1103		987
1104	Returns true when the given account exists.	988	Returns the given player object, loading it if necessary (might block).
1105		989
1106	=cut	990	=cut
1107		991
1108	sub cf::player::exists($) {	992	sub playerdir($) {
1109	cf::player::find $_[0]	993	"$PLAYERDIR/"
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	994	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	995	}
1112		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
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1168	=item $player->ext_reply ($msgid, %msg)
1114		1169
1115	Sends an ext reply to the player.	1170	Sends an ext reply to the player.
1116		1171
1117	=cut	1172	=cut
1118		1173
1119	sub cf::player::ext_reply($$$%) {	1174	sub ext_reply($$%) {
1120	my ($self, $id, %msg) = @_;	1175	my ($self, $id, %msg) = @_;
1121		1176
1122	$msg{msgid} = $id;	1177	$msg{msgid} = $id;
1123		1178
1124	$self->send ("ext " . to_json \%msg);	1179	$self->send ("ext " . cf::to_json \%msg);
		1180	}
		1181
		1182	=item $player->ext_event ($type, %msg)
		1183
		1184	Sends an ext event to the client.
		1185
		1186	=cut
		1187
		1188	sub ext_event($$%) {
		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
1125	}	1221	}
1126		1222
1127	=back	1223	=back
1128
1129		1224
1130	=head3 cf::map	1225	=head3 cf::map
1131		1226
1132	=over 4	1227	=over 4
1133		1228
…		…
1136	package cf::map;	1231	package cf::map;
1137		1232
1138	use Fcntl;	1233	use Fcntl;
1139	use Coro::AIO;	1234	use Coro::AIO;
1140		1235
		1236	use overload
		1237	'""' => \&as_string,
		1238	fallback => 1;
		1239
1141	our $MAX_RESET = 7200;	1240	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1241	our $DEFAULT_RESET = 3000;
1143		1242
1144	sub generate_random_map {	1243	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1244	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1245	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1246	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1247	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1248	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1249	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1250	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1251	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1252	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1253	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1254	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$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},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1256	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(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"
1161	}	1388	}
1162		1389
1163	# and all this just because we cannot iterate over	1390	# and all this just because we cannot iterate over
1164	# all maps in C++...	1391	# all maps in C++...
1165	sub change_all_map_light {	1392	sub change_all_map_light {
…		…
1167		1394
1168	$_->change_map_light ($change)	1395	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1396	for grep $_->outdoor, values %cf::MAP;
1170	}	1397	}
1171		1398
		1399	sub unlink_save {
		1400	my ($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
1172	sub try_load_header($) {	1407	sub load_header_from($) {
1173	my ($path) = @_;	1408	my ($self, $path) = @_;
1174		1409
1175	utf8::encode $path;	1410	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1411	#aio_open $path, O_RDONLY, 0
		1412	# or return;
		1413
		1414	$self->_load_header ($path)
1177	or return;	1415	or return;
1178		1416
1179	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
1180	or return;	1460	or return;
		1461	$self->prepare_orig;
		1462	}
1181		1463
1182	$map->load_header ($path)	1464	$self->default_region (cf::region::find_by_path $self->{path})
1183	or return;	1465	unless $self->default_region;
1184		1466
1185	$map->{load_path} = $path;	1467	1
1186
1187	$map
1188	}	1468	}
1189		1469
1190	sub find_map;	1470	sub find;
1191	sub find_map {	1471	sub find {
1192	my ($path, $origin) = @_;	1472	my ($path, $origin) = @_;
1193		1473
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1474	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1475
1199	cf::lock_wait "map_find:$key";	1476	cf::lock_wait "map_find:$path";
1200		1477
1201	$cf::MAP{$key} || do {	1478	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1479	my $guard = cf::lock_acquire "map_find:$path";
1203		1480	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	# safety
1209	$map->{instantiate_time} = $cf::RUNTIME
1210	if $map->{instantiate_time} > $cf::RUNTIME;
1211	} else {
1212	if (my $rmp = $path->random_map_params) {
1213	$map = generate_random_map $key, $rmp;
1214	} else {
1215	$map = try_load_header $path->load_path;
1216	}
1217
1218	$map or return;	1481	or return;
1219		1482
1220	$map->{load_original} = 1;
1221	$map->{instantiate_time} = $cf::RUNTIME;
1222	$map->instantiate;
1223
1224	# per-player maps become, after loading, normal maps
1225	$map->per_player (0) if $path->{user_rel};
1226	}
1227
1228	$map->path ($key);
1229	$map->{path} = $path;
1230	$map->{last_save} = $cf::RUNTIME;	1483	$map->{last_save} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232		1484
1233	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;
1234	$map->reset;	1491	$map->reset;
1235	undef $guard;	1492	undef $guard;
1236	$map = find_map $path	1493	return find $path;
1237	or return;
1238	}	1494	}
1239		1495
1240	$cf::MAP{$key} = $map	1496	$cf::MAP{$path} = $map
1241	}	1497	}
1242	}	1498	}
		1499
		1500	sub pre_load { }
		1501	sub post_load { }
1243		1502
1244	sub load {	1503	sub load {
1245	my ($self) = @_;	1504	my ($self) = @_;
1246		1505
		1506	local $self->{deny_reset} = 1; # loading can take a long time
		1507
1247	my $path = $self->{path};	1508	my $path = $self->{path};
		1509
		1510	{
1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1511	my $guard = cf::lock_acquire "map_load:$path";
1249		1512
1250	return if $self->in_memory != cf::MAP_SWAPPED;	1513	return if $self->in_memory != cf::MAP_SWAPPED;
1251		1514
1252	$self->in_memory (cf::MAP_LOADING);	1515	$self->in_memory (cf::MAP_LOADING);
1253		1516
1254	$self->alloc;	1517	$self->alloc;
		1518
		1519	$self->pre_load;
		1520	Coro::cede;
		1521
1255	$self->load_objects ($self->{load_path}, 1)	1522	$self->_load_objects ($self->{load_path}, 1)
1256	or return;	1523	or return;
1257		1524
1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1525	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1259	if delete $self->{load_original};	1526	if delete $self->{load_original};
1260		1527
1261	if (my $uniq = $path->uniq_path) {	1528	if (my $uniq = $self->uniq_path) {
1262	utf8::encode $uniq;	1529	utf8::encode $uniq;
1263	if (aio_open $uniq, O_RDONLY, 0) {	1530	if (aio_open $uniq, O_RDONLY, 0) {
1264	$self->clear_unique_items;	1531	$self->clear_unique_items;
1265	$self->load_objects ($uniq, 0);	1532	$self->_load_objects ($uniq, 0);
1266	}	1533	}
1267	}	1534	}
1268		1535
		1536	Coro::cede;
1269	# now do the right thing for maps	1537	# now do the right thing for maps
1270	$self->link_multipart_objects;	1538	$self->link_multipart_objects;
1271
1272	if ($self->{path}->is_style_map) {
1273	$self->{deny_save} = 1;
1274	$self->{deny_reset} = 1;
1275	} else {
1276	$self->fix_auto_apply;
1277	$self->decay_objects;
1278	$self->update_buttons;
1279	$self->set_darkness_map;
1280	$self->difficulty ($self->estimate_difficulty)	1539	$self->difficulty ($self->estimate_difficulty)
1281	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;
1282	$self->activate;	1550	$self->activate;
1283	}	1551	}
1284		1552
1285	$self->in_memory (cf::MAP_IN_MEMORY);	1553	$self->in_memory (cf::MAP_IN_MEMORY);
1286	}	1554	}
1287		1555
1288	sub load_map_sync {	1556	$self->post_load;
		1557	}
		1558
		1559	sub customise_for {
		1560	my ($self, $ob) = @_;
		1561
		1562	return find "~" . $ob->name . "/" . $self->{path}
		1563	if $self->per_player;
		1564
		1565	$self
		1566	}
		1567
		1568	# find and load all maps in the 3x3 area around a map
		1569	sub load_diag {
		1570	my ($map) = @_;
		1571
		1572	my @diag; # diagonal neighbours
		1573
		1574	for (0 .. 3) {
		1575	my $neigh = $map->tile_path ($_)
		1576	or next;
		1577	$neigh = find $neigh, $map
		1578	or next;
		1579	$neigh->load;
		1580
		1581	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1582	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1583	}
		1584
		1585	for (@diag) {
		1586	my $neigh = find @$_
		1587	or next;
		1588	$neigh->load;
		1589	}
		1590	}
		1591
		1592	sub find_sync {
1289	my ($path, $origin) = @_;	1593	my ($path, $origin) = @_;
1290		1594
1291	#warn "load_map_sync<$path, $origin>\n";#d#	1595	cf::sync_job { find $path, $origin }
		1596	}
1292		1597
1293	cf::sync_job {	1598	sub do_load_sync {
1294	my $map = cf::map::find_map $path, $origin	1599	my ($map) = @_;
1295	or return;	1600
		1601	cf::sync_job { $map->load };
		1602	}
		1603
		1604	our %MAP_PREFETCH;
		1605	our $MAP_PREFETCHER = undef;
		1606
		1607	sub find_async {
		1608	my ($path, $origin) = @_;
		1609
		1610	$path = normalise $path, $origin && $origin->{path};
		1611
		1612	if (my $map = $cf::MAP{$path}) {
		1613	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1614	}
		1615
		1616	undef $MAP_PREFETCH{$path};
		1617	$MAP_PREFETCHER ||= cf::async {
		1618	while (%MAP_PREFETCH) {
		1619	for my $path (keys %MAP_PREFETCH) {
		1620	my $map = find $path
		1621	or next;
1296	$map->load;	1622	$map->load;
1297	$map	1623
		1624	delete $MAP_PREFETCH{$path};
		1625	}
		1626	}
		1627	undef $MAP_PREFETCHER;
1298	}	1628	};
		1629	$MAP_PREFETCHER->prio (6);
		1630
		1631	()
1299	}	1632	}
1300		1633
1301	sub save {	1634	sub save {
1302	my ($self) = @_;	1635	my ($self) = @_;
1303		1636
		1637	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1638
1304	$self->{last_save} = $cf::RUNTIME;	1639	$self->{last_save} = $cf::RUNTIME;
1305		1640
1306	return unless $self->dirty;	1641	return unless $self->dirty;
1307		1642
1308	my $save = $self->{path}->save_path; utf8::encode $save;	1643	my $save = $self->save_path; utf8::encode $save;
1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1644	my $uniq = $self->uniq_path; utf8::encode $uniq;
1310		1645
1311	$self->{load_path} = $save;	1646	$self->{load_path} = $save;
1312		1647
1313	return if $self->{deny_save};	1648	return if $self->{deny_save};
1314		1649
		1650	local $self->{last_access} = $self->last_access;#d#
		1651
		1652	cf::async {
		1653	$_->contr->save for $self->players;
		1654	};
		1655
1315	if ($uniq) {	1656	if ($uniq) {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1657	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1317	$self->save_objects ($uniq, cf::IO_UNIQUES);	1658	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1318	} else {	1659	} else {
1319	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1660	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1320	}	1661	}
1321	}	1662	}
1322		1663
1323	sub swap_out {	1664	sub swap_out {
1324	my ($self) = @_;	1665	my ($self) = @_;
1325		1666
1326	# save first because save cedes	1667	# save first because save cedes
1327	$self->save;	1668	$self->save;
		1669
		1670	my $lock = cf::lock_acquire "map_data:" . $self->path;
1328		1671
1329	return if $self->players;	1672	return if $self->players;
1330	return if $self->in_memory != cf::MAP_IN_MEMORY;	1673	return if $self->in_memory != cf::MAP_IN_MEMORY;
1331	return if $self->{deny_save};	1674	return if $self->{deny_save};
1332		1675
…		…
1336		1679
1337	sub reset_at {	1680	sub reset_at {
1338	my ($self) = @_;	1681	my ($self) = @_;
1339		1682
1340	# TODO: safety, remove and allow resettable per-player maps	1683	# TODO: safety, remove and allow resettable per-player maps
1341	return 1e99 if $self->{path}{user_rel};	1684	return 1e99 if $self->isa ("ext::map_per_player");#d#
1342	return 1e99 if $self->{deny_reset};	1685	return 1e99 if $self->{deny_reset};
1343		1686
1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1346		1689
…		…
1351	my ($self) = @_;	1694	my ($self) = @_;
1352		1695
1353	$self->reset_at <= $cf::RUNTIME	1696	$self->reset_at <= $cf::RUNTIME
1354	}	1697	}
1355		1698
1356	sub unlink_save {
1357	my ($self) = @_;
1358
1359	utf8::encode (my $save = $self->{path}->save_path);
1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1362	}
1363
1364	sub rename {
1365	my ($self, $new_path) = @_;
1366
1367	$self->unlink_save;
1368
1369	delete $cf::MAP{$self->path};
1370	$self->{path} = new cf::path $new_path;
1371	$self->path ($self->{path}->as_string);
1372	$cf::MAP{$self->path} = $self;
1373
1374	$self->save;
1375	}
1376
1377	sub reset {	1699	sub reset {
1378	my ($self) = @_;	1700	my ($self) = @_;
1379		1701
		1702	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1703
1380	return if $self->players;	1704	return if $self->players;
1381	return if $self->{path}{user_rel};#d#	1705	return if $self->isa ("ext::map_per_player");#d#
1382		1706
1383	warn "resetting map ", $self->path;#d#	1707	warn "resetting map ", $self->path;#d#
1384		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
1385	delete $cf::MAP{$self->path};	1719	delete $cf::MAP{$self->path};
		1720
		1721	$self->clear;
1386		1722
1387	$_->clear_links_to ($self) for values %cf::MAP;	1723	$_->clear_links_to ($self) for values %cf::MAP;
1388		1724
1389	$self->unlink_save;	1725	$self->unlink_save;
1390	$self->destroy;	1726	$self->destroy;
…		…
1393	my $nuke_counter = "aaaa";	1729	my $nuke_counter = "aaaa";
1394		1730
1395	sub nuke {	1731	sub nuke {
1396	my ($self) = @_;	1732	my ($self) = @_;
1397		1733
		1734	delete $cf::MAP{$self->path};
		1735
		1736	$self->unlink_save;
		1737
		1738	bless $self, "cf::map";
		1739	delete $self->{deny_reset};
1398	$self->{deny_save} = 1;	1740	$self->{deny_save} = 1;
1399	$self->reset_timeout (1);	1741	$self->reset_timeout (1);
1400	$self->rename ("{nuke}/" . ($nuke_counter++));	1742	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1743
		1744	$cf::MAP{$self->path} = $self;
		1745
1401	$self->reset; # polite request, might not happen	1746	$self->reset; # polite request, might not happen
1402	}	1747	}
1403		1748
1404	sub customise_for {	1749	=item cf::map::unique_maps
1405	my ($map, $ob) = @_;
1406		1750
1407	if ($map->per_player) {	1751	Returns an arrayref of paths of all shared maps that have
1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1752	instantiated unique items. May block.
1409	}
1410		1753
1411	$map	1754	=cut
1412	}
1413		1755
1414	sub emergency_save {	1756	sub unique_maps() {
1415	local $cf::FREEZE = 1;	1757	my $files = aio_readdir $UNIQUEDIR
		1758	or return;
1416		1759
1417	warn "enter emergency map save\n";	1760	my @paths;
1418		1761
1419	cf::sync_job {	1762	for (@$files) {
1420	warn "begin emergency map save\n";	1763	utf8::decode $_;
1421	$_->save for values %cf::MAP;	1764	next if /\.pst$/;
		1765	next unless /^$PATH_SEP/o;
		1766
		1767	push @paths, cf::map::normalise $_;
1422	};	1768	}
1423		1769
1424	warn "end emergency map save\n";	1770	\@paths
1425	}	1771	}
1426		1772
1427	package cf;	1773	package cf;
1428		1774
1429	=back	1775	=back
1430		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
1431		1803
1432	=head3 cf::object::player	1804	=head3 cf::object::player
1433		1805
1434	=over 4	1806	=over 4
1435		1807
…		…
1475		1847
1476	=item $player_object->enter_link	1848	=item $player_object->enter_link
1477		1849
1478	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}>).
1479		1851
1480	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
1481	I<MUST> call C<leave_link> as soon as possible, though.	1853	I<MUST> call C<leave_link> as soon as possible, though.
1482		1854
		1855	Will never block.
		1856
1483	=item $player_object->leave_link ($map, $x, $y)	1857	=item $player_object->leave_link ($map, $x, $y)
1484		1858
1485	Moves the player out of the specila link map onto the given map. If the	1859	Moves the player out of the special C<{link}> map onto the specified
1486	map is not valid (or omitted), the player will be moved back to the	1860	map. If the map is not valid (or omitted), the player will be moved back
1487	location he/she was before the call to C<enter_link>, or, if that fails,	1861	to the location he/she was before the call to C<enter_link>, or, if that
1488	to the emergency map position.	1862	fails, to the emergency map position.
1489		1863
1490	Might block.	1864	Might block.
1491		1865
1492	=cut	1866	=cut
		1867
		1868	sub link_map {
		1869	unless ($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	$LINK_MAP
		1876	}
1493		1877
1494	sub cf::object::player::enter_link {	1878	sub cf::object::player::enter_link {
1495	my ($self) = @_;	1879	my ($self) = @_;
1496		1880
1497	$self->deactivate_recursive;	1881	$self->deactivate_recursive;
1498		1882
1499	return if $self->map == $LINK_MAP;	1883	return if UNIVERSAL::isa $self->map, "ext::map_link";
1500		1884
1501	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1885	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1502	if $self->map;	1886	if $self->map;
1503		1887
1504	$self->enter_map ($LINK_MAP, 20, 20);	1888	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1505	}	1889	}
1506		1890
1507	sub cf::object::player::leave_link {	1891	sub cf::object::player::leave_link {
1508	my ($self, $map, $x, $y) = @_;	1892	my ($self, $map, $x, $y) = @_;
1509		1893
1510	my $link_pos = delete $self->{_link_pos};	1894	my $link_pos = delete $self->{_link_pos};
1511		1895
1512	unless ($map) {	1896	unless ($map) {
1513	# restore original map position	1897	# restore original map position
1514	($map, $x, $y) = @{ $link_pos || [] };	1898	($map, $x, $y) = @{ $link_pos || [] };
1515	$map = cf::map::find_map $map;	1899	$map = cf::map::find $map;
1516		1900
1517	unless ($map) {	1901	unless ($map) {
1518	($map, $x, $y) = @$EMERGENCY_POSITION;	1902	($map, $x, $y) = @$EMERGENCY_POSITION;
1519	$map = cf::map::find_map $map	1903	$map = cf::map::find $map
1520	or die "FATAL: cannot load emergency map\n";	1904	or die "FATAL: cannot load emergency map\n";
1521	}	1905	}
1522	}	1906	}
1523		1907
1524	($x, $y) = (-1, -1)	1908	($x, $y) = (-1, -1)
…		…
1527	# use -1 or undef as default coordinates, not 0, 0	1911	# use -1 or undef as default coordinates, not 0, 0
1528	($x, $y) = ($map->enter_x, $map->enter_y)	1912	($x, $y) = ($map->enter_x, $map->enter_y)
1529	if $x <=0 && $y <= 0;	1913	if $x <=0 && $y <= 0;
1530		1914
1531	$map->load;	1915	$map->load;
		1916	$map->load_diag;
1532		1917
		1918	return unless $self->contr->active;
1533	$self->activate_recursive;	1919	$self->activate_recursive;
		1920
		1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1534	$self->enter_map ($map, $x, $y);	1922	$self->enter_map ($map, $x, $y);
1535	}	1923	}
1536		1924
1537	cf::player->attach (	1925	cf::player->attach (
1538	on_logout => sub {	1926	on_logout => sub {
…		…
1550		1938
1551	# try to abort aborted map switching on player login :)	1939	# try to abort aborted map switching on player login :)
1552	# should happen only on crashes	1940	# should happen only on crashes
1553	if ($pl->ob->{_link_pos}) {	1941	if ($pl->ob->{_link_pos}) {
1554	$pl->ob->enter_link;	1942	$pl->ob->enter_link;
1555	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);
1556	# 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
1557	# 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
1558	Coro::Timer::sleep 1;	1950	Coro::Timer::sleep 1;
1559	$pl->ob->leave_link;	1951	$pl->ob->leave_link;
1560	};	1952	})->prio (2);
1561	}	1953	}
1562	},	1954	},
1563	);	1955	);
1564		1956
1565	=item $player_object->goto_map ($path, $x, $y)	1957	=item $player_object->goto ($path, $x, $y)
1566		1958
1567	=cut	1959	=cut
1568		1960
1569	sub cf::object::player::goto_map {	1961	sub cf::object::player::goto {
1570	my ($self, $path, $x, $y) = @_;	1962	my ($self, $path, $x, $y) = @_;
1571		1963
1572	$self->enter_link;	1964	$self->enter_link;
1573		1965
1574	(cf::async {	1966	(async {
1575	$path = new cf::path $path;	1967	my $map = eval {
1576
1577	my $map = cf::map::find_map $path->as_string;	1968	my $map = cf::map::find $path;
1578	$map = $map->customise_for ($self) if $map;	1969	$map = $map->customise_for ($self) if $map;
1579		1970	$map
1580	# warn "entering ", $map->path, " at ($x, $y)\n"	1971	} or
1581	# if $map;
1582
1583	$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);
1584		1973
1585	$self->leave_link ($map, $x, $y);	1974	$self->leave_link ($map, $x, $y);
1586	})->prio (1);	1975	})->prio (1);
1587	}	1976	}
1588		1977
…		…
1592		1981
1593	sub parse_random_map_params {	1982	sub parse_random_map_params {
1594	my ($spec) = @_;	1983	my ($spec) = @_;
1595		1984
1596	my $rmp = { # defaults	1985	my $rmp = { # defaults
1597	xsize => 10,	1986	xsize => (cf::rndm 15, 40),
1598	ysize => 10,	1987	ysize => (cf::rndm 15, 40),
		1988	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1989	#layout => string,
1599	};	1990	};
1600		1991
1601	for (split /\n/, $spec) {	1992	for (split /\n/, $spec) {
1602	my ($k, $v) = split /\s+/, $_, 2;	1993	my ($k, $v) = split /\s+/, $_, 2;
1603		1994
…		…
1607	$rmp	1998	$rmp
1608	}	1999	}
1609		2000
1610	sub prepare_random_map {	2001	sub prepare_random_map {
1611	my ($exit) = @_;	2002	my ($exit) = @_;
		2003
		2004	my $guard = cf::lock_acquire "exit_prepare:$exit";
1612		2005
1613	# all this does is basically replace the /! path by	2006	# all this does is basically replace the /! path by
1614	# a new random map path (?random/...) with a seed	2007	# a new random map path (?random/...) with a seed
1615	# that depends on the exit object	2008	# that depends on the exit object
1616		2009
1617	my $rmp = parse_random_map_params $exit->msg;	2010	my $rmp = parse_random_map_params $exit->msg;
1618		2011
1619	if ($exit->map) {	2012	if ($exit->map) {
1620	$rmp->{region} = $exit->map->region_name;	2013	$rmp->{region} = $exit->region->name;
1621	$rmp->{origin_map} = $exit->map->path;	2014	$rmp->{origin_map} = $exit->map->path;
1622	$rmp->{origin_x} = $exit->x;	2015	$rmp->{origin_x} = $exit->x;
1623	$rmp->{origin_y} = $exit->y;	2016	$rmp->{origin_y} = $exit->y;
1624	}	2017	}
1625		2018
1626	$rmp->{random_seed} ||= $exit->random_seed;	2019	$rmp->{random_seed} ||= $exit->random_seed;
1627		2020
1628	my $data = cf::to_json $rmp;	2021	my $data = cf::to_json $rmp;
1629	my $md5 = Digest::MD5::md5_hex $data;	2022	my $md5 = Digest::MD5::md5_hex $data;
		2023	my $meta = "$RANDOMDIR/$md5.meta";
1630		2024
1631	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) {
1632	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;
1633		2029
1634	$exit->slaying ("?random/$md5");	2030	$exit->slaying ("?random/$md5");
1635	$exit->msg (undef);	2031	$exit->msg (undef);
1636	}	2032	}
1637	}	2033	}
…		…
1639	sub cf::object::player::enter_exit {	2035	sub cf::object::player::enter_exit {
1640	my ($self, $exit) = @_;	2036	my ($self, $exit) = @_;
1641		2037
1642	return unless $self->type == cf::PLAYER;	2038	return unless $self->type == cf::PLAYER;
1643		2039
		2040	if ($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
1644	$self->enter_link;	2051	$self->enter_link;
1645		2052
1646	(cf::async {	2053	(async {
		2054	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2055	unless (eval {
1648	prepare_random_map $exit	2056	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1653		2057
1654	1;	2058	1;
1655	}) {	2059	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2060	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "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. "
1658	. "Please report this to the dungeon master",	2062	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2063	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2064
1661	warn "ERROR in enter_exit: $@";	2065	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2066	$self->leave_link;
1663	}	2067	}
1664	})->prio (1);	2068	})->prio (1);
…		…
1677		2081
1678	sub cf::client::send_drawinfo {	2082	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2083	my ($self, $text, $flags) = @_;
1680		2084
1681	utf8::encode $text;	2085	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2086	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2087	}
1684		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	}
1685		2101
1686	=item $success = $client->query ($flags, "text", \&cb)	2102	=item $success = $client->query ($flags, "text", \&cb)
1687		2103
1688	Queues a query to the client, calling the given callback with	2104	Queues a query to the client, calling the given callback with
1689	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>,
…		…
1718	# get handled first	2134	# get handled first
1719	my $queue = delete $ns->{query_queue}	2135	my $queue = delete $ns->{query_queue}
1720	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
1721		2137
1722	(shift @$queue)->[1]->($msg);	2138	(shift @$queue)->[1]->($msg);
		2139	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2140
1724	push @{ $ns->{query_queue} }, @$queue;	2141	push @{ $ns->{query_queue} }, @$queue;
1725		2142
1726	if (@{ $ns->{query_queue} } == @$queue) {	2143	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2144	if (@$queue) {
…		…
1731	}	2148	}
1732	}	2149	}
1733	},	2150	},
1734	);	2151	);
1735		2152
1736	=item $client->coro (\&cb)	2153	=item $client->async (\&cb)
1737		2154
1738	Create a new coroutine, running the specified callback. The coroutine will	2155	Create a new coroutine, running the specified callback. The coroutine will
1739	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,
1740	or loss of connection).	2157	or loss of connection).
1741		2158
1742	=cut	2159	=cut
1743		2160
1744	sub cf::client::coro {	2161	sub cf::client::async {
1745	my ($self, $cb) = @_;	2162	my ($self, $cb) = @_;
1746		2163
1747	my $coro = &cf::async ($cb);	2164	my $coro = &Coro::async ($cb);
1748		2165
1749	$coro->on_destroy (sub {	2166	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2167	delete $self->{_coro}{$coro+0};
1751	});	2168	});
1752		2169
…		…
1785		2202
1786	# here we export the classes and methods available to script code	2203	# here we export the classes and methods available to script code
1787		2204
1788	=pod	2205	=pod
1789		2206
1790	The following fucntions and emthods are available within a safe environment:	2207	The following functions and methods are available within a safe environment:
1791		2208
1792	cf::object contr pay_amount pay_player map	2209	cf::object contr pay_amount pay_player map
1793	cf::object::player player	2210	cf::object::player player
1794	cf::player peaceful	2211	cf::player peaceful
1795	cf::map trigger	2212	cf::map trigger
…		…
1880	#############################################################################	2297	#############################################################################
1881		2298
1882	=head2 EXTENSION DATABASE SUPPORT	2299	=head2 EXTENSION DATABASE SUPPORT
1883		2300
1884	Crossfire maintains a very simple database for extension use. It can	2301	Crossfire maintains a very simple database for extension use. It can
1885	currently store anything that can be serialised using Storable, which	2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1886	excludes objects.	2303	convert to/from binary).
1887		2304
1888	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
1889	using it, it should be unique.	2306	using it, it should be unique.
1890		2307
1891	=over 4	2308	=over 4
1892		2309
1893	=item $hashref = cf::db_get $family
1894
1895	Return a hashref for use by the extension C<$family>, which can be
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898
1899	=item $value = cf::db_get $family => $key	2310	=item $value = cf::db_get $family => $key
1900		2311
1901	Returns a single value from the database	2312	Returns a single value from the database.
1902
1903	=item cf::db_put $family => $hashref
1904
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907		2313
1908	=item cf::db_put $family => $key => $value	2314	=item cf::db_put $family => $key => $value
1909		2315
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you	2316	Stores the given C<$value> in the family.
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920		2317
1921	=cut	2318	=cut
1922		2319
1923	our $DB;	2320	our $DB;
1924		2321
1925	{	2322	sub db_init {
1926	my $path = cf::localdir . "/database.pst";	2323	unless ($DB) {
		2324	$DB = BDB::db_create $DB_ENV;
1927		2325
1928	sub db_load() {	2326	cf::sync_job {
1929	$DB = stat $path ? Storable::retrieve $path : { };	2327	eval {
1930	}	2328	$DB->set_flags (BDB::CHKSUM);
1931		2329
1932	my $pid;	2330	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1933		2331	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1934	sub db_save() {	2332	cf::cleanup "db_open(db): $!" if $!;
1935	waitpid $pid, 0 if $pid;	2333	};
1936	if (0 == ($pid = fork)) {	2334	cf::cleanup "db_open(db): $@" if $@;
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}	2335	};
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});	2336	}
		2337	}
1954		2338
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}
1959
1960	sub db_get($;$) {	2339	sub db_get($$) {
1961	@_ >= 2	2340	my $key = "$_[0]/$_[1]";
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965		2341
		2342	cf::sync_job {
		2343	BDB::db_get $DB, undef, $key, my $data;
		2344
		2345	$! ? ()
		2346	: $data
		2347	}
		2348	}
		2349
1966	sub db_put($$;$) {	2350	sub db_put($$$) {
1967	if (@_ >= 3) {	2351	BDB::dbreq_pri 4;
1968	$DB->{$_[0]}{$_[1]} = $_[2];	2352	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1969	} else {	2353	}
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974		2354
1975	cf::global->attach (	2355	=item cf::cache $id => [$paths...], $processversion => $process
1976	prio => 10000,	2356
1977	on_cleanup => sub {	2357	Generic caching function that returns the value of the resource $id,
1978	db_sync;	2358	caching and regenerating as required.
		2359
		2360	This function can block.
		2361
		2362	=cut
		2363
		2364	sub cache {
		2365	my ($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 "$src->[$_]: $!";
1979	},	2387	}
1980	);	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"
1981	}	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
1982		2470
1983	#############################################################################	2471	#############################################################################
1984	# 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	}
1985		2560
1986	sub cfg_load {	2561	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2562	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	2563	or return;
1989		2564
1990	local $/;	2565	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2566	*CFG = YAML::Syck::Load <$fh>;
1992		2567
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2568	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		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
1995	if (exists $CFG{mlockall}) {	2573	if (exists $CFG{mlockall}) {
1996	eval {	2574	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2575	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2576	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2577	};
2000	warn $@ if $@;	2578	warn $@ if $@;
2001	}	2579	}
2002	}	2580	}
2003		2581
2004	sub main {	2582	sub main {
2005	# we must not ever block the main coroutine	2583	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2584	local $Coro::idle = sub {
2007	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#
2008	(Coro::unblock_sub {	2586	(async {
2009	Event::one_event;	2587	Event::one_event;
2010	})->();	2588	})->prio (Coro::PRIO_MAX);
2011	};	2589	};
2012		2590
2013	cfg_load;	2591	cfg_load;
2014	db_load;	2592	db_init;
2015	load_extensions;	2593	load_extensions;
		2594
		2595	$TICK_WATCHER->start;
2016	Event::loop;	2596	Event::loop;
2017	}	2597	}
2018		2598
2019	#############################################################################	2599	#############################################################################
2020	# initialisation	2600	# initialisation and cleanup
2021		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
2022	sub reload() {	2657	sub do_reload_perl() {
2023	# can/must only be called in main	2658	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2659	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2660	warn "can only reload from main coroutine";
2026	return;	2661	return;
2027	}	2662	}
2028		2663
2029	warn "reloading...";	2664	warn "reloading...";
2030		2665
2031	local $FREEZE = 1;	2666	warn "entering sync_job";
		2667
		2668	cf::sync_job {
		2669	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	2670	cf::emergency_save;
		2671	cf::write_runtime; # external watchdog should not bark
2033		2672
2034	eval {	2673	warn "syncing database to disk";
		2674	BDB::db_env_txn_checkpoint $DB_ENV;
		2675
2035	# 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
2036		2677
2037	# cancel all watchers	2678	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	2679	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	2680	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	2681	}
2041		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
2042	# cancel all extension coros	2694	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	2695	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	2696	%EXT_CORO = ();
2045		2697
2046	# unload all extensions	2698	warn "removing commands";
2047	for (@exts) {	2699	%COMMAND = ();
		2700
		2701	warn "removing ext commands";
		2702	%EXTCMD = ();
		2703
		2704	warn "unloading/nuking all extensions";
		2705	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	2706	warn "... unloading $pkg";
2049	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: $@";
2050	}	2713	}
2051		2714
		2715	warn "... nuking $pkg";
		2716	Symbol::delete_package $pkg;
		2717	}
		2718
2052	# unload all modules loaded from $LIBDIR	2719	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	2720	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2721	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		2722
2056	warn "removing <$k>";	2723	warn "... unloading $k";
2057	delete $INC{$k};	2724	delete $INC{$k};
2058		2725
2059	$k =~ s/\.pm$//;	2726	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	2727	$k =~ s/\//::/g;
2061		2728
…		…
2064	}	2731	}
2065		2732
2066	Symbol::delete_package $k;	2733	Symbol::delete_package $k;
2067	}	2734	}
2068		2735
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	2736	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	2737	Symbol::delete_package "safe::$_"
2075	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);
2076		2739
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	2740	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	2741	delete $INC{"cf.pm"};
		2742	delete $INC{"cf/pod.pm"};
2082		2743
2083	# don't, removes xs symbols, too,	2744	# don't, removes xs symbols, too,
2084	# and global variables created in xs	2745	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	2746	#Symbol::delete_package __PACKAGE__;
2086		2747
2087	# reload cf.pm	2748	warn "unload completed, starting to reload now";
		2749
2088	warn "reloading cf.pm";	2750	warn "reloading cf.pm";
2089	require cf;	2751	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		2753
2092	# load config and database again	2754	warn "loading config and database again";
2093	cf::cfg_load;	2755	cf::cfg_load;
2094	cf::db_load;
2095		2756
2096	# load extensions
2097	warn "load extensions";	2757	warn "loading extensions";
2098	cf::load_extensions;	2758	cf::load_extensions;
2099		2759
2100	# reattach attachments to objects	2760	warn "reattaching attachments to objects/players";
2101	warn "reattach";	2761	_global_reattach; # objects, sockets
2102	_global_reattach;	2762	warn "reattaching attachments to maps";
2103	};	2763	reattach $_ for values %MAP;
		2764	warn "reattaching attachments to players";
		2765	reattach $_ for values %PLAYER;
2104		2766
2105	if ($@) {	2767	warn "leaving sync_job";
		2768
		2769	1
		2770	} or do {
2106	warn $@;	2771	warn $@;
2107	warn "error while reloading, exiting.";	2772	warn "error while reloading, exiting.";
2108	exit 1;	2773	exit 1;
2109	}	2774	};
2110		2775
2111	warn "reloaded successfully";	2776	warn "reloaded";
2112	};	2777	};
2113		2778
2114	#############################################################################	2779	our $RELOAD_WATCHER; # used only during reload
2115		2780
2116	unless ($LINK_MAP) {	2781	sub reload_perl() {
2117	$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.
2118		2784
2119	$LINK_MAP->width (41);	2785	$RELOAD_WATCHER ||= Event->timer (
2120	$LINK_MAP->height (41);	2786	reentrant => 0,
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,	2787	after => 0,
		2788	data => WF_AUTOCANCEL,
2129	cb => sub {	2789	cb => sub {
2130	$_[0]->w->cancel;	2790	do_reload_perl;
2131		2791	undef $RELOAD_WATCHER;
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});	2792	},
2150		2793	);
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	2794	}
2156
2157	register "<global>", __PACKAGE__;
2158		2795
2159	register_command "reload" => sub {	2796	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	2797	my ($who, $arg) = @_;
2161		2798
2162	if ($who->flag (FLAG_WIZ)) {	2799	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	2800	$who->message ("reloading server.");
		2801	async { reload_perl };
2166	}	2802	}
2167	};	2803	};
2168		2804
2169	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	}
2170		2829
2171	$TICK_WATCHER = Event->timer (	2830	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	2831	reentrant => 0,
		2832	parked => 1,
2173	prio => 0,	2833	prio => 0,
2174	at => $NEXT_TICK || $TICK,	2834	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	2835	data => WF_AUTOCANCEL,
2176	cb => sub {	2836	cb => sub {
2177	unless ($FREEZE) {	2837	if ($Coro::current != $Coro::main) {
		2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2839	unless ++$bug_warning > 10;
		2840	return;
		2841	}
		2842
		2843	$NOW = Event::time;
		2844
2178	cf::server_tick; # one server iteration	2845	cf::server_tick; # one server iteration
		2846
2179	$RUNTIME += $TICK;	2847	$RUNTIME += $TICK;
2180	}
2181
2182	$NEXT_TICK += $TICK;	2848	$NEXT_TICK += $TICK;
		2849
		2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2851	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2852	Coro::async_pool {
		2853	write_runtime
		2854	or warn "ERROR: unable to write runtime file: $!";
		2855	};
		2856	}
		2857
		2858	# my $AFTER = Event::time;
		2859	# warn $AFTER - $NOW;#d#
2183		2860
2184	# 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
2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2186		2863
2187	$TICK_WATCHER->at ($NEXT_TICK);	2864	$TICK_WATCHER->at ($NEXT_TICK);
2188	$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;
2189	},	2875	},
2190	);	2876	);
2191		2877
		2878	{
2192	IO::AIO::max_poll_time $TICK * 0.2;	2879	BDB::max_poll_time $TICK * 0.1;
2193		2880	$BDB_POLL_WATCHER = Event->io (
2194	Event->io (	2881	reentrant => 0,
2195	fd => IO::AIO::poll_fileno,	2882	fd => BDB::poll_fileno,
2196	poll => 'r',	2883	poll => 'r',
2197	prio => 5,	2884	prio => 0,
2198	data => WF_AUTOCANCEL,
2199	cb => \&IO::AIO::poll_cb,
2200	);
2201
2202	Event->timer (
2203	data => WF_AUTOCANCEL,	2885	data => WF_AUTOCANCEL,
2204	after => 0,	2886	cb => \&BDB::poll_cb,
2205	interval => 10,	2887	);
2206	cb => sub {	2888	BDB::min_parallel 8;
2207	(Coro::unblock_sub {	2889
2208	write_runtime	2890	BDB::set_sync_prepare {
2209	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 $@;
2210	})->();	2924	};
2211	},	2925	}
2212	);	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;
2213		2983
2214	END { cf::emergency_save }	2984	END { cf::emergency_save }
2215		2985
2216	1	2986	1
2217		2987

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