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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.124 by root, Tue Jan 2 22:55:05 2007 UTC vs.
Revision 1.260 by root, Fri Apr 27 19:53:05 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		94
58	binmode STDOUT;	95	binmode STDOUT;
59	binmode STDERR;	96	binmode STDERR;
60		97
61	# read virtual server time, if available	98	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
66	}	103	}
67		104
68	mkdir cf::localdir;	105	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		107
74	# a special map that is always available	108	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		109
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	110	sub cf::map::normalise;
78		111
79	#############################################################################	112	#############################################################################
80		113
81	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
82		115
…		…
89	=item $cf::RUNTIME	122	=item $cf::RUNTIME
90		123
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	124	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	125	every server tick.
93		126
94	=item $cf::LIBDIR	127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		130
96	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		133	unique-items directory, player file directory, random maps directory and
		134	database environment.
98		135
99	=item $cf::NOW	136	=item $cf::NOW
100		137
101	The time of the last (current) server tick.	138	The time of the last (current) server tick.
102		139
…		…
106		143
107	=item %cf::CFG	144	=item %cf::CFG
108		145
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	147	from wherever your confdir points to.
		148
		149	=item cf::wait_for_tick, cf::wait_for_tick_begin
		150
		151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		152	returns directly I<after> the tick processing (and consequently, can only wake one process
		153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		154
112	=back	155	=back
113		156
114	=cut	157	=cut
115		158
116	BEGIN {	159	BEGIN {
117	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	161	my $msg = join "", @_;
119	utf8::encode $msg;
120		162
121	$msg .= "\n"	163	$msg .= "\n"
122	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
123		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
125	};	170	};
126	}	171	}
127		172
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		192
148	$Event::DIED = sub {	193	$Event::DIED = sub {
149	warn "error in event callback: @_";	194	warn "error in event callback: @_";
150	};	195	};
151		196
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
157		198
158	=over 4	199	=over 4
159		200
160	=cut	201	=item dumpval $ref
161		202
		203	=cut
		204
		205	sub dumpval {
		206	eval {
		207	local $SIG{__DIE__};
		208	my $d;
		209	if (1) {
		210	$d = new Data::Dumper([$_[0]], ["*var"]);
		211	$d->Terse(1);
		212	$d->Indent(2);
		213	$d->Quotekeys(0);
		214	$d->Useqq(1);
		215	#$d->Bless(...);
		216	$d->Seen($_[1]) if @_ > 1;
		217	$d = $d->Dump();
		218	}
		219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		220	$d
		221	} || "[unable to dump $_[0]: '$@']";
		222	}
		223
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		225
164	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
165		227
166	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
167		229
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
176		231
177	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
178		233
179	=cut
180
181	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185
186	=item my $guard = cf::guard { BLOCK }
187
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207
208	=item cf::lock_wait $string	234	=item cf::lock_wait $string
209		235
210	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
211		237
212	=item my $lock = cf::lock_acquire $string	238	=item my $lock = cf::lock_acquire $string
213		239
214	Wait until the given lock is available and then acquires it and returns	240	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	242	for example when the coroutine gets canceled), the lock is automatically
217	returned.	243	returned.
218		244
219	Lock names should begin with a unique identifier (for example, find_map	245	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	246	uses map_find and cf::map::load uses map_load).
		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
221		251
222	=cut	252	=cut
223		253
224	our %LOCK;	254	our %LOCK;
225		255
…		…
239	# wait, to be sure we are not locked	269	# wait, to be sure we are not locked
240	lock_wait $key;	270	lock_wait $key;
241		271
242	$LOCK{$key} = [];	272	$LOCK{$key} = [];
243		273
244	cf::guard {	274	Coro::guard {
245	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
247	}	277	}
248	}	278	}
		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
		286	sub freeze_mainloop {
		287	return unless $TICK_WATCHER->is_active;
		288
		289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
		292	$TICK_WATCHER->stop;
		293	$guard
		294	}
		295
		296	=item cf::async { BLOCK }
		297
		298	Currently the same as Coro::async_pool, meaning you cannot use
		299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
		301
		302	=cut
		303
		304	BEGIN { *async = \&Coro::async_pool }
249		305
250	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
251		307
252	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
253	always able to handle events or runnable, as crossfire+ is only partly	309	always able to handle events or runnable, as crossfire+ is only partly
…		…
267	# this is the main coro, too bad, we have to block	323	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	324	# till the operation succeeds, freezing the server :/
269		325
270	# TODO: use suspend/resume instead	326	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	327	# (but this is cancel-safe)
272	local $FREEZE = 1;	328	my $freeze_guard = freeze_mainloop;
273		329
274	my $busy = 1;	330	my $busy = 1;
275	my @res;	331	my @res;
276		332
277	(Coro::async {	333	(async {
278	@res = eval { $job->() };	334	@res = eval { $job->() };
279	warn $@ if $@;	335	warn $@ if $@;
280	undef $busy;	336	undef $busy;
281	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
282		338
283	while ($busy) {	339	while ($busy) {
284	Coro::cede_notself;	340	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	341	}
287		342
288	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
289	} else {	344	} else {
290	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
291		346
292	$job->()	347	$job->()
293	}	348	}
294	}	349	}
295		350
296	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
297		352
298	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
300		355
301	=cut	356	=cut
302		357
303	sub coro(&) {	358	sub async_ext(&) {
304	my $cb = shift;	359	my $cb = shift;
305		360
306	my $coro; $coro = async {	361	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		362
313	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
315	});	365	});
316	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
317		367
318	$coro	368	$coro
319	}	369	}
320		370
321	sub write_runtime {	371	sub write_runtime {
322	my $runtime = cf::localdir . "/runtime";	372	my $guard = cf::lock_acquire "write_runtime";
		373
		374	my $runtime = "$LOCALDIR/runtime";
323		375
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
325	or return;	377	or return;
326		378
		379	my $value = $cf::RUNTIME + 90 + 10;
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	380	# 10 is the runtime save interval, for a monotonic clock
		381	# 60 allows for the watchdog to kill the server.
		382
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0	383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;	384	and return;
330		385
		386	# always fsync - this file is important
331	aio_fsync $fh	387	aio_fsync $fh
332	and return;	388	and return;
333		389
334	close $fh	390	close $fh
335	or return;	391	or return;
…		…
338	and return;	394	and return;
339		395
340	1	396	1
341	}	397	}
342		398
		399	=item cf::datalog type => key => value, ...
		400
		401	Log a datalog packet of the given type with the given key-value pairs.
		402
		403	=cut
		404
		405	sub datalog($@) {
		406	my ($type, %kv) = @_;
		407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		408	}
		409
343	=back	410	=back
344		411
345	=cut	412	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		413
467	#############################################################################	414	#############################################################################
468		415
469	=head2 ATTACHABLE OBJECTS	416	=head2 ATTACHABLE OBJECTS
470		417
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	543	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	544	our @CB_MAP = ();
598		545
599	my %attachment;	546	my %attachment;
600		547
		548	sub cf::attachable::thawer_merge {
		549	# simply override everything except _meta
		550	local $_[0]{_meta};
		551	%{$_[0]} = %{$_[1]};
		552	}
		553
601	sub _attach_cb($$$$) {	554	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	555	my ($registry, $event, $prio, $cb) = @_;
603		556
604	use sort 'stable';	557	use sort 'stable';
605		558
…		…
776	# object support	729	# object support
777		730
778	sub reattach {	731	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	732	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	733	my ($obj) = @_;
		734
		735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		736
782	my $registry = $obj->registry;	737	my $registry = $obj->registry;
783		738
784	@$registry = ();	739	@$registry = ();
785		740
…		…
832	$filename, length $$rdata, scalar @$objs;	787	$filename, length $$rdata, scalar @$objs;
833		788
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	790	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	792	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	793	close $fh;
839		794
840	if (@$objs) {	795	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	797	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	798	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	799	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	800	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	801	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	802	aio_rename "$filename.pst~", "$filename.pst";
848	}	803	}
849	} else {	804	} else {
850	aio_unlink "$filename.pst";	805	aio_unlink "$filename.pst";
…		…
917	=cut	872	=cut
918		873
919	sub register_extcmd {	874	sub register_extcmd {
920	my ($name, $cb) = @_;	875	my ($name, $cb) = @_;
921		876
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	877	$EXTCMD{$name} = $cb;
926	}	878	}
927		879
928	cf::player->attach (	880	cf::player->attach (
929	on_command => sub {	881	on_command => sub {
930	my ($pl, $name, $params) = @_;	882	my ($pl, $name, $params) = @_;
…		…
943		895
944	my $msg = eval { from_json $buf };	896	my $msg = eval { from_json $buf };
945		897
946	if (ref $msg) {	898	if (ref $msg) {
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	900	if (my %reply = $cb->($pl, $msg)) {
949	$pl->ext_reply ($msg->{msgid}, %reply);	901	$pl->ext_reply ($msg->{msgid}, %reply);
950	}	902	}
951	}	903	}
952	} else {	904	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
955		907
956	cf::override;	908	cf::override;
957	},	909	},
958	);	910	);
959		911
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	912	sub load_extension {
967	my ($path) = @_;	913	my ($path) = @_;
968		914
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
970	my $base = $1;	916	my $base = $1;
971	my $pkg = $1;	917	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;	918	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";	919	$pkg = "ext::$pkg";
974		920
975	warn "loading '$path' into '$pkg'\n";	921	warn "... loading '$path' into '$pkg'\n";
976		922
977	open my $fh, "<:utf8", $path	923	open my $fh, "<:utf8", $path
978	or die "$path: $!";	924	or die "$path: $!";
979		925
980	my $source =	926	my $source =
981	"package $pkg; use strict; use utf8;\n"	927	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"	928	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })	929	. (do { local $/; <$fh> })
984	. "\n};\n1";	930	. "\n};\n1";
985		931
986	eval $source	932	unless (eval $source) {
987	or die $@ ? "$path: $@\n"	933	my $msg = $@ ? "$path: $@\n"
988	: "extension disabled.\n";	934	: "extension disabled.\n";
989		935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
990	push @exts, $pkg;	936	warn $@;
991	$ext_pkg{$base} = $pkg;	937	warn "mandatory extension failed to load, exiting.\n";
992		938	exit 1;
993	# no strict 'refs';	939	}
994	# @{"$pkg\::ISA"} = ext::;	940	die $@;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	941	}
1009		942
1010	# remove commands	943	push @EXTS, $pkg;
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}	944	}
1035		945
1036	sub load_extensions {	946	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {	947	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;	948	next unless -r $ext;
…		…
1042	} or warn "$ext not loaded: $@";	952	} or warn "$ext not loaded: $@";
1043	}	953	}
1044	}	954	}
1045		955
1046	#############################################################################	956	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083		957
1084	=head2 CORE EXTENSIONS	958	=head2 CORE EXTENSIONS
1085		959
1086	Functions and methods that extend core crossfire objects.	960	Functions and methods that extend core crossfire objects.
1087		961
		962	=cut
		963
		964	package cf::player;
		965
		966	use Coro::AIO;
		967
1088	=head3 cf::player	968	=head3 cf::player
1089		969
1090	=over 4	970	=over 4
1091		971
1092	=item cf::player::exists $login	972	=item cf::player::find $login
1093		973
1094	Returns true when the given account exists.	974	Returns the given player object, loading it if necessary (might block).
1095		975
1096	=cut	976	=cut
1097		977
1098	sub cf::player::exists($) {	978	sub playerdir($) {
1099	cf::player::find $_[0]	979	"$PLAYERDIR/"
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	980	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1101	}	981	}
1102		982
		983	sub path($) {
		984	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		985
		986	(playerdir $login) . "/playerdata"
		987	}
		988
		989	sub find_active($) {
		990	$cf::PLAYER{$_[0]}
		991	and $cf::PLAYER{$_[0]}->active
		992	and $cf::PLAYER{$_[0]}
		993	}
		994
		995	sub exists($) {
		996	my ($login) = @_;
		997
		998	$cf::PLAYER{$login}
		999	or cf::sync_job { !aio_stat path $login }
		1000	}
		1001
		1002	sub find($) {
		1003	return $cf::PLAYER{$_[0]} || do {
		1004	my $login = $_[0];
		1005
		1006	my $guard = cf::lock_acquire "user_find:$login";
		1007
		1008	$cf::PLAYER{$_[0]} || do {
		1009	# rename old playerfiles to new ones
		1010	#TODO: remove when no longer required
		1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1014	aio_unlink +(playerdir $login) . "/$login.pl";
		1015
		1016	my $pl = load_pl path $login
		1017	or return;
		1018	$cf::PLAYER{$login} = $pl
		1019	}
		1020	}
		1021	}
		1022
		1023	sub save($) {
		1024	my ($pl) = @_;
		1025
		1026	return if $pl->{deny_save};
		1027
		1028	my $path = path $pl;
		1029	my $guard = cf::lock_acquire "user_save:$path";
		1030
		1031	return if $pl->{deny_save};
		1032
		1033	aio_mkdir playerdir $pl, 0770;
		1034	$pl->{last_save} = $cf::RUNTIME;
		1035
		1036	$pl->save_pl ($path);
		1037	Coro::cede;
		1038	}
		1039
		1040	sub new($) {
		1041	my ($login) = @_;
		1042
		1043	my $self = create;
		1044
		1045	$self->ob->name ($login);
		1046	$self->{deny_save} = 1;
		1047
		1048	$cf::PLAYER{$login} = $self;
		1049
		1050	$self
		1051	}
		1052
		1053	=item $pl->quit_character
		1054
		1055	Nukes the player without looking back. If logged in, the connection will
		1056	be destroyed. May block for a long time.
		1057
		1058	=cut
		1059
		1060	sub quit_character {
		1061	my ($pl) = @_;
		1062
		1063	my $name = $pl->ob->name;
		1064
		1065	$pl->{deny_save} = 1;
		1066	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1067
		1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1069	$pl->deactivate;
		1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1071	$pl->ns->destroy if $pl->ns;
		1072
		1073	my $path = playerdir $pl;
		1074	my $temp = "$path~$cf::RUNTIME~deleting~";
		1075	aio_rename $path, $temp;
		1076	delete $cf::PLAYER{$pl->ob->name};
		1077	$pl->destroy;
		1078
		1079	my $prefix = qr<^~\Q$name\E/>;
		1080
		1081	# nuke player maps
		1082	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1083
		1084	IO::AIO::aio_rmtree $temp;
		1085	}
		1086
		1087	=item $pl->kick
		1088
		1089	Kicks a player out of the game. This destroys the connection.
		1090
		1091	=cut
		1092
		1093	sub kick {
		1094	my ($pl, $kicker) = @_;
		1095
		1096	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1097	$pl->killer ("kicked");
		1098	$pl->ns->destroy;
		1099	}
		1100
		1101	=item cf::player::list_logins
		1102
		1103	Returns am arrayref of all valid playernames in the system, can take a
		1104	while and may block, so not sync_job-capable, ever.
		1105
		1106	=cut
		1107
		1108	sub list_logins {
		1109	my $dirs = aio_readdir $PLAYERDIR
		1110	or return [];
		1111
		1112	my @logins;
		1113
		1114	for my $login (@$dirs) {
		1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1116	aio_read $fh, 0, 512, my $buf, 0 or next;
		1117	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1118
		1119	utf8::decode $login;
		1120	push @logins, $login;
		1121	}
		1122
		1123	\@logins
		1124	}
		1125
		1126	=item $player->maps
		1127
		1128	Returns an arrayref of map paths that are private for this
		1129	player. May block.
		1130
		1131	=cut
		1132
		1133	sub maps($) {
		1134	my ($pl) = @_;
		1135
		1136	$pl = ref $pl ? $pl->ob->name : $pl;
		1137
		1138	my $files = aio_readdir playerdir $pl
		1139	or return;
		1140
		1141	my @paths;
		1142
		1143	for (@$files) {
		1144	utf8::decode $_;
		1145	next if /\.(?:pl|pst)$/;
		1146	next unless /^$PATH_SEP/o;
		1147
		1148	push @paths, cf::map::normalise "~$pl/$_";
		1149	}
		1150
		1151	\@paths
		1152	}
		1153
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)	1154	=item $player->ext_reply ($msgid, %msg)
1104		1155
1105	Sends an ext reply to the player.	1156	Sends an ext reply to the player.
1106		1157
1107	=cut	1158	=cut
1108		1159
1109	sub cf::player::ext_reply($$$%) {	1160	sub ext_reply($$%) {
1110	my ($self, $id, %msg) = @_;	1161	my ($self, $id, %msg) = @_;
1111		1162
1112	$msg{msgid} = $id;	1163	$msg{msgid} = $id;
1113		1164
1114	$self->send ("ext " . to_json \%msg);	1165	$self->send ("ext " . cf::to_json \%msg);
		1166	}
		1167
		1168	=item $player->ext_event ($type, %msg)
		1169
		1170	Sends an ext event to the client.
		1171
		1172	=cut
		1173
		1174	sub ext_event($$%) {
		1175	my ($self, $type, %msg) = @_;
		1176
		1177	$self->ns->ext_event ($type, %msg);
		1178	}
		1179
		1180	=head3 cf::region
		1181
		1182	=over 4
		1183
		1184	=cut
		1185
		1186	package cf::region;
		1187
		1188	=item cf::region::find_by_path $path
		1189
		1190	Tries to decuce the probable region for a map knowing only its path.
		1191
		1192	=cut
		1193
		1194	sub find_by_path($) {
		1195	my ($path) = @_;
		1196
		1197	my ($match, $specificity);
		1198
		1199	for my $region (list) {
		1200	if ($region->match && $path =~ $region->match) {
		1201	($match, $specificity) = ($region, $region->specificity)
		1202	if $region->specificity > $specificity;
		1203	}
		1204	}
		1205
		1206	$match
1115	}	1207	}
1116		1208
1117	=back	1209	=back
1118
1119		1210
1120	=head3 cf::map	1211	=head3 cf::map
1121		1212
1122	=over 4	1213	=over 4
1123		1214
…		…
1126	package cf::map;	1217	package cf::map;
1127		1218
1128	use Fcntl;	1219	use Fcntl;
1129	use Coro::AIO;	1220	use Coro::AIO;
1130		1221
		1222	use overload
		1223	'""' => \&as_string,
		1224	fallback => 1;
		1225
1131	our $MAX_RESET = 7200;	1226	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1227	our $DEFAULT_RESET = 3000;
1133		1228
1134	sub generate_random_map {	1229	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1230	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1231	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1232	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1236	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1237	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1240	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1241	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1242	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1243	(cf::region::find $rmp->{region}), $rmp->{custom}
		1244	)
		1245	}
		1246
		1247	=item cf::map->register ($regex, $prio)
		1248
		1249	Register a handler for the map path matching the given regex at the
		1250	givne priority (higher is better, built-in handlers have priority 0, the
		1251	default).
		1252
		1253	=cut
		1254
		1255	sub register {
		1256	my (undef, $regex, $prio) = @_;
		1257	my $pkg = caller;
		1258
		1259	no strict;
		1260	push @{"$pkg\::ISA"}, __PACKAGE__;
		1261
		1262	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1263	}
		1264
		1265	# also paths starting with '/'
		1266	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1267
		1268	sub thawer_merge {
		1269	my ($self, $merge) = @_;
		1270
		1271	# we have to keep some variables in memory intact
		1272	local $self->{path};
		1273	local $self->{load_path};
		1274	local $self->{deny_save};
		1275	local $self->{deny_reset};
		1276
		1277	$self->SUPER::thawer_merge ($merge);
		1278	}
		1279
		1280	sub normalise {
		1281	my ($path, $base) = @_;
		1282
		1283	$path = "$path"; # make sure its a string
		1284
		1285	$path =~ s/\.map$//;
		1286
		1287	# map plan:
		1288	#
		1289	# /! non-realised random map exit (special hack!)
		1290	# {... are special paths that are not being touched
		1291	# ?xxx/... are special absolute paths
		1292	# ?random/... random maps
		1293	# /... normal maps
		1294	# ~user/... per-player map of a specific user
		1295
		1296	$path =~ s/$PATH_SEP/\//go;
		1297
		1298	# treat it as relative path if it starts with
		1299	# something that looks reasonable
		1300	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1301	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1302
		1303	$base =~ s{[^/]+/?$}{};
		1304	$path = "$base/$path";
		1305	}
		1306
		1307	for ($path) {
		1308	redo if s{//}{/};
		1309	redo if s{/\.?/}{/};
		1310	redo if s{/[^/]+/\.\./}{/};
		1311	}
		1312
		1313	$path
		1314	}
		1315
		1316	sub new_from_path {
		1317	my (undef, $path, $base) = @_;
		1318
		1319	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1320
		1321	$path = normalise $path, $base;
		1322
		1323	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1324	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1325	my $self = bless cf::map::new, $pkg;
		1326	$self->{path} = $path; $self->path ($path);
		1327	$self->init; # pass $1 etc.
		1328	return $self;
		1329	}
		1330	}
		1331
		1332	Carp::carp "unable to resolve path '$path' (base '$base').";
		1333	()
		1334	}
		1335
		1336	sub init {
		1337	my ($self) = @_;
		1338
		1339	$self
		1340	}
		1341
		1342	sub as_string {
		1343	my ($self) = @_;
		1344
		1345	"$self->{path}"
		1346	}
		1347
		1348	# the displayed name, this is a one way mapping
		1349	sub visible_name {
		1350	&as_string
		1351	}
		1352
		1353	# the original (read-only) location
		1354	sub load_path {
		1355	my ($self) = @_;
		1356
		1357	"$MAPDIR/$self->{path}.map"
		1358	}
		1359
		1360	# the temporary/swap location
		1361	sub save_path {
		1362	my ($self) = @_;
		1363
		1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1365	"$TMPDIR/$path.map"
		1366	}
		1367
		1368	# the unique path, undef == no special unique path
		1369	sub uniq_path {
		1370	my ($self) = @_;
		1371
		1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1373	"$UNIQUEDIR/$path"
1151	}	1374	}
1152		1375
1153	# and all this just because we cannot iterate over	1376	# and all this just because we cannot iterate over
1154	# all maps in C++...	1377	# all maps in C++...
1155	sub change_all_map_light {	1378	sub change_all_map_light {
…		…
1157		1380
1158	$_->change_map_light ($change)	1381	$_->change_map_light ($change)
1159	for grep $_->outdoor, values %cf::MAP;	1382	for grep $_->outdoor, values %cf::MAP;
1160	}	1383	}
1161		1384
		1385	sub unlink_save {
		1386	my ($self) = @_;
		1387
		1388	utf8::encode (my $save = $self->save_path);
		1389	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1390	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1391	}
		1392
1162	sub try_load_header($) {	1393	sub load_header_from($) {
1163	my ($path) = @_;	1394	my ($self, $path) = @_;
1164		1395
1165	utf8::encode $path;	1396	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1397	#aio_open $path, O_RDONLY, 0
		1398	# or return;
		1399
		1400	$self->_load_header ($path)
1167	or return;	1401	or return;
1168		1402
1169	my $map = cf::map::new	1403	$self->{load_path} = $path;
		1404
		1405	1
		1406	}
		1407
		1408	sub load_header_orig {
		1409	my ($self) = @_;
		1410
		1411	$self->load_header_from ($self->load_path)
		1412	}
		1413
		1414	sub load_header_temp {
		1415	my ($self) = @_;
		1416
		1417	$self->load_header_from ($self->save_path)
		1418	}
		1419
		1420	sub prepare_temp {
		1421	my ($self) = @_;
		1422
		1423	$self->last_access ((delete $self->{last_access})
		1424	|| $cf::RUNTIME); #d#
		1425	# safety
		1426	$self->{instantiate_time} = $cf::RUNTIME
		1427	if $self->{instantiate_time} > $cf::RUNTIME;
		1428	}
		1429
		1430	sub prepare_orig {
		1431	my ($self) = @_;
		1432
		1433	$self->{load_original} = 1;
		1434	$self->{instantiate_time} = $cf::RUNTIME;
		1435	$self->last_access ($cf::RUNTIME);
		1436	$self->instantiate;
		1437	}
		1438
		1439	sub load_header {
		1440	my ($self) = @_;
		1441
		1442	if ($self->load_header_temp) {
		1443	$self->prepare_temp;
		1444	} else {
		1445	$self->load_header_orig
1170	or return;	1446	or return;
		1447	$self->prepare_orig;
		1448	}
1171		1449
1172	$map->load_header ($path)	1450	$self->default_region (cf::region::find_by_path $self->{path})
1173	or return;	1451	unless $self->default_region;
1174		1452
1175	$map->{load_path} = $path;	1453	1
1176
1177	$map
1178	}	1454	}
1179		1455
		1456	sub find;
1180	sub find_map {	1457	sub find {
1181	my ($path, $origin) = @_;	1458	my ($path, $origin) = @_;
1182		1459
1183	#warn "find_map<$path,$origin>\n";#d#
1184
1185	$path = new cf::path $path, $origin && $origin->path;	1460	$path = normalise $path, $origin && $origin->path;
1186	my $key = $path->as_string;
1187		1461
1188	cf::lock_wait "map_find:$key";	1462	cf::lock_wait "map_find:$path";
1189		1463
1190	$cf::MAP{$key} || do {	1464	$cf::MAP{$path} || do {
1191	my $guard = cf::lock_acquire "map_find:$key";	1465	my $guard = cf::lock_acquire "map_find:$path";
1192		1466	my $map = new_from_path cf::map $path
1193	# do it the slow way
1194	my $map = try_load_header $path->save_path;
1195
1196	if ($map) {
1197	# safety
1198	$map->{instantiate_time} = $cf::RUNTIME
1199	if $map->{instantiate_time} > $cf::RUNTIME;
1200	} else {
1201	if (my $rmp = $path->random_map_params) {
1202	$map = generate_random_map $key, $rmp;
1203	} else {
1204	$map = try_load_header $path->load_path;
1205	}
1206
1207	$map or return;	1467	or return;
1208		1468
1209	$map->{load_original} = 1;
1210	$map->{instantiate_time} = $cf::RUNTIME;
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1469	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		1470
1222	if ($map->should_reset) {	1471	$map->load_header
		1472	or return;
		1473
		1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1475	# doing this can freeze the server in a sync job, obviously
		1476	#$cf::WAIT_FOR_TICK->wait;
1223	$map->reset;	1477	$map->reset;
1224	undef $guard;	1478	undef $guard;
1225	$map = cf::map::find_map ($path)	1479	return find $path;
1226	or return;
1227	}	1480	}
1228		1481
1229	$cf::MAP{$key} = $map	1482	$cf::MAP{$path} = $map
1230	}	1483	}
1231	}	1484	}
		1485
		1486	sub pre_load { }
		1487	sub post_load { }
1232		1488
1233	sub load {	1489	sub load {
1234	my ($self) = @_;	1490	my ($self) = @_;
1235		1491
		1492	local $self->{deny_reset} = 1; # loading can take a long time
		1493
1236	my $path = $self->{path};	1494	my $path = $self->{path};
		1495
		1496	{
1237	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1497	my $guard = cf::lock_acquire "map_load:$path";
1238		1498
1239	return if $self->in_memory != cf::MAP_SWAPPED;	1499	return if $self->in_memory != cf::MAP_SWAPPED;
1240		1500
1241	$self->in_memory (cf::MAP_LOADING);	1501	$self->in_memory (cf::MAP_LOADING);
1242		1502
1243	$self->alloc;	1503	$self->alloc;
		1504
		1505	$self->pre_load;
		1506	Coro::cede;
		1507
1244	$self->load_objects ($self->{load_path}, 1)	1508	$self->_load_objects ($self->{load_path}, 1)
1245	or return;	1509	or return;
1246		1510
1247	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1248	if delete $self->{load_original};	1512	if delete $self->{load_original};
1249		1513
1250	if (my $uniq = $path->uniq_path) {	1514	if (my $uniq = $self->uniq_path) {
1251	utf8::encode $uniq;	1515	utf8::encode $uniq;
1252	if (aio_open $uniq, O_RDONLY, 0) {	1516	if (aio_open $uniq, O_RDONLY, 0) {
1253	$self->clear_unique_items;	1517	$self->clear_unique_items;
1254	$self->load_objects ($uniq, 0);	1518	$self->_load_objects ($uniq, 0);
1255	}	1519	}
1256	}	1520	}
1257		1521
		1522	Coro::cede;
1258	# now do the right thing for maps	1523	# now do the right thing for maps
1259	$self->link_multipart_objects;	1524	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	1525	$self->difficulty ($self->estimate_difficulty)
1270	unless $self->difficulty;	1526	unless $self->difficulty;
		1527	Coro::cede;
		1528
		1529	unless ($self->{deny_activate}) {
		1530	$self->decay_objects;
		1531	$self->fix_auto_apply;
		1532	$self->update_buttons;
		1533	Coro::cede;
		1534	$self->set_darkness_map;
		1535	Coro::cede;
1271	$self->activate;	1536	$self->activate;
1272	}	1537	}
1273		1538
1274	$self->in_memory (cf::MAP_IN_MEMORY);	1539	$self->in_memory (cf::MAP_IN_MEMORY);
1275	}	1540	}
1276		1541
1277	sub load_map_sync {	1542	$self->post_load;
		1543	}
		1544
		1545	sub customise_for {
		1546	my ($self, $ob) = @_;
		1547
		1548	return find "~" . $ob->name . "/" . $self->{path}
		1549	if $self->per_player;
		1550
		1551	$self
		1552	}
		1553
		1554	# find and load all maps in the 3x3 area around a map
		1555	sub load_diag {
		1556	my ($map) = @_;
		1557
		1558	my @diag; # diagonal neighbours
		1559
		1560	for (0 .. 3) {
		1561	my $neigh = $map->tile_path ($_)
		1562	or next;
		1563	$neigh = find $neigh, $map
		1564	or next;
		1565	$neigh->load;
		1566
		1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1569	}
		1570
		1571	for (@diag) {
		1572	my $neigh = find @$_
		1573	or next;
		1574	$neigh->load;
		1575	}
		1576	}
		1577
		1578	sub find_sync {
1278	my ($path, $origin) = @_;	1579	my ($path, $origin) = @_;
1279		1580
1280	#warn "load_map_sync<$path, $origin>\n";#d#	1581	cf::sync_job { find $path, $origin }
		1582	}
1281		1583
1282	cf::sync_job {	1584	sub do_load_sync {
1283	my $map = cf::map::find_map $path, $origin	1585	my ($map) = @_;
1284	or return;	1586
		1587	cf::sync_job { $map->load };
		1588	}
		1589
		1590	our %MAP_PREFETCH;
		1591	our $MAP_PREFETCHER = undef;
		1592
		1593	sub find_async {
		1594	my ($path, $origin) = @_;
		1595
		1596	$path = normalise $path, $origin && $origin->{path};
		1597
		1598	if (my $map = $cf::MAP{$path}) {
		1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1600	}
		1601
		1602	undef $MAP_PREFETCH{$path};
		1603	$MAP_PREFETCHER ||= cf::async {
		1604	while (%MAP_PREFETCH) {
		1605	for my $path (keys %MAP_PREFETCH) {
		1606	my $map = find $path
		1607	or next;
1285	$map->load;	1608	$map->load;
1286	$map	1609
		1610	delete $MAP_PREFETCH{$path};
		1611	}
		1612	}
		1613	undef $MAP_PREFETCHER;
1287	}	1614	};
		1615	$MAP_PREFETCHER->prio (6);
		1616
		1617	()
1288	}	1618	}
1289		1619
1290	sub save {	1620	sub save {
1291	my ($self) = @_;	1621	my ($self) = @_;
1292		1622
		1623	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1624
1293	$self->{last_save} = $cf::RUNTIME;	1625	$self->{last_save} = $cf::RUNTIME;
1294		1626
1295	return unless $self->dirty;	1627	return unless $self->dirty;
1296		1628
1297	my $save = $self->{path}->save_path; utf8::encode $save;	1629	my $save = $self->save_path; utf8::encode $save;
1298	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1630	my $uniq = $self->uniq_path; utf8::encode $uniq;
1299		1631
1300	$self->{load_path} = $save;	1632	$self->{load_path} = $save;
1301		1633
1302	return if $self->{deny_save};	1634	return if $self->{deny_save};
1303		1635
		1636	local $self->{last_access} = $self->last_access;#d#
		1637
		1638	cf::async {
		1639	$_->contr->save for $self->players;
		1640	};
		1641
1304	if ($uniq) {	1642	if ($uniq) {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1306	$self->save_objects ($uniq, cf::IO_UNIQUES);	1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1307	} else {	1645	} else {
1308	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1309	}	1647	}
1310	}	1648	}
1311		1649
1312	sub swap_out {	1650	sub swap_out {
1313	my ($self) = @_;	1651	my ($self) = @_;
		1652
		1653	# save first because save cedes
		1654	$self->save;
		1655
		1656	my $lock = cf::lock_acquire "map_data:" . $self->path;
1314		1657
1315	return if $self->players;	1658	return if $self->players;
1316	return if $self->in_memory != cf::MAP_IN_MEMORY;	1659	return if $self->in_memory != cf::MAP_IN_MEMORY;
1317	return if $self->{deny_save};	1660	return if $self->{deny_save};
1318		1661
1319	$self->save;
1320	$self->clear;	1662	$self->clear;
1321	$self->in_memory (cf::MAP_SWAPPED);	1663	$self->in_memory (cf::MAP_SWAPPED);
1322	}	1664	}
1323		1665
1324	sub reset_at {	1666	sub reset_at {
1325	my ($self) = @_;	1667	my ($self) = @_;
1326		1668
1327	# TODO: safety, remove and allow resettable per-player maps	1669	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};	1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1329	return 1e99 if $self->{deny_reset};	1671	return 1e99 if $self->{deny_reset};
1330		1672
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		1675
…		…
1338	my ($self) = @_;	1680	my ($self) = @_;
1339		1681
1340	$self->reset_at <= $cf::RUNTIME	1682	$self->reset_at <= $cf::RUNTIME
1341	}	1683	}
1342		1684
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	1685	sub reset {
1365	my ($self) = @_;	1686	my ($self) = @_;
1366		1687
		1688	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1689
1367	return if $self->players;	1690	return if $self->players;
1368	return if $self->{path}{user_rel};#d#	1691	return if $self->isa ("ext::map_per_player");#d#
1369		1692
1370	warn "resetting map ", $self->path;#d#	1693	warn "resetting map ", $self->path;#d#
1371		1694
		1695	$self->in_memory (cf::MAP_SWAPPED);
		1696
		1697	# need to save uniques path
		1698	unless ($self->{deny_save}) {
		1699	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1700
		1701	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1702	if $uniq;
		1703	}
		1704
1372	delete $cf::MAP{$self->path};	1705	delete $cf::MAP{$self->path};
		1706
		1707	$self->clear;
1373		1708
1374	$_->clear_links_to ($self) for values %cf::MAP;	1709	$_->clear_links_to ($self) for values %cf::MAP;
1375		1710
1376	$self->unlink_save;	1711	$self->unlink_save;
1377	$self->destroy;	1712	$self->destroy;
…		…
1380	my $nuke_counter = "aaaa";	1715	my $nuke_counter = "aaaa";
1381		1716
1382	sub nuke {	1717	sub nuke {
1383	my ($self) = @_;	1718	my ($self) = @_;
1384		1719
		1720	delete $cf::MAP{$self->path};
		1721
		1722	$self->unlink_save;
		1723
		1724	bless $self, "cf::map";
		1725	delete $self->{deny_reset};
1385	$self->{deny_save} = 1;	1726	$self->{deny_save} = 1;
1386	$self->reset_timeout (1);	1727	$self->reset_timeout (1);
1387	$self->rename ("{nuke}/" . ($nuke_counter++));	1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1729
		1730	$cf::MAP{$self->path} = $self;
		1731
1388	$self->reset; # polite request, might not happen	1732	$self->reset; # polite request, might not happen
1389	}	1733	}
1390		1734
1391	sub customise_for {	1735	=item cf::map::unique_maps
1392	my ($map, $ob) = @_;
1393		1736
1394	if ($map->per_player) {	1737	Returns an arrayref of paths of all shared maps that have
1395	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1738	instantiated unique items. May block.
1396	}
1397		1739
1398	$map	1740	=cut
1399	}
1400		1741
1401	sub emergency_save {	1742	sub unique_maps() {
1402	local $cf::FREEZE = 1;	1743	my $files = aio_readdir $UNIQUEDIR
		1744	or return;
1403		1745
1404	warn "enter emergency map save\n";	1746	my @paths;
1405		1747
1406	cf::sync_job {	1748	for (@$files) {
1407	warn "begin emergency map save\n";	1749	utf8::decode $_;
1408	$_->save for values %cf::MAP;	1750	next if /\.pst$/;
		1751	next unless /^$PATH_SEP/o;
		1752
		1753	push @paths, cf::map::normalise $_;
1409	};	1754	}
1410		1755
1411	warn "end emergency map save\n";	1756	\@paths
1412	}	1757	}
1413		1758
1414	package cf;	1759	package cf;
1415		1760
1416	=back	1761	=back
1417		1762
		1763	=head3 cf::object
		1764
		1765	=cut
		1766
		1767	package cf::object;
		1768
		1769	=over 4
		1770
		1771	=item $ob->inv_recursive
		1772
		1773	Returns the inventory of the object _and_ their inventories, recursively.
		1774
		1775	=cut
		1776
		1777	sub inv_recursive_;
		1778	sub inv_recursive_ {
		1779	map { $_, inv_recursive_ $_->inv } @_
		1780	}
		1781
		1782	sub inv_recursive {
		1783	inv_recursive_ inv $_[0]
		1784	}
		1785
		1786	package cf;
		1787
		1788	=back
1418		1789
1419	=head3 cf::object::player	1790	=head3 cf::object::player
1420		1791
1421	=over 4	1792	=over 4
1422		1793
…		…
1462		1833
1463	=item $player_object->enter_link	1834	=item $player_object->enter_link
1464		1835
1465	Freezes the player and moves him/her to a special map (C<{link}>).	1836	Freezes the player and moves him/her to a special map (C<{link}>).
1466		1837
1467	The player should be reaosnably safe there for short amounts of time. You	1838	The player should be reasonably safe there for short amounts of time. You
1468	I<MUST> call C<leave_link> as soon as possible, though.	1839	I<MUST> call C<leave_link> as soon as possible, though.
1469		1840
		1841	Will never block.
		1842
1470	=item $player_object->leave_link ($map, $x, $y)	1843	=item $player_object->leave_link ($map, $x, $y)
1471		1844
1472	Moves the player out of the specila link map onto the given map. If the	1845	Moves the player out of the special C<{link}> map onto the specified
1473	map is not valid (or omitted), the player will be moved back to the	1846	map. If the map is not valid (or omitted), the player will be moved back
1474	location he/she was before the call to C<enter_link>, or, if that fails,	1847	to the location he/she was before the call to C<enter_link>, or, if that
1475	to the emergency map position.	1848	fails, to the emergency map position.
1476		1849
1477	Might block.	1850	Might block.
1478		1851
1479	=cut	1852	=cut
		1853
		1854	sub link_map {
		1855	unless ($LINK_MAP) {
		1856	$LINK_MAP = cf::map::find "{link}"
		1857	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1858	$LINK_MAP->load;
		1859	}
		1860
		1861	$LINK_MAP
		1862	}
1480		1863
1481	sub cf::object::player::enter_link {	1864	sub cf::object::player::enter_link {
1482	my ($self) = @_;	1865	my ($self) = @_;
1483		1866
1484	$self->deactivate_recursive;	1867	$self->deactivate_recursive;
1485		1868
1486	return if $self->map == $LINK_MAP;	1869	return if UNIVERSAL::isa $self->map, "ext::map_link";
1487		1870
1488	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1871	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1489	if $self->map;	1872	if $self->map;
1490		1873
1491	$self->enter_map ($LINK_MAP, 20, 20);	1874	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1492	}	1875	}
1493		1876
1494	sub cf::object::player::leave_link {	1877	sub cf::object::player::leave_link {
1495	my ($self, $map, $x, $y) = @_;	1878	my ($self, $map, $x, $y) = @_;
1496		1879
1497	my $link_pos = delete $self->{_link_pos};	1880	my $link_pos = delete $self->{_link_pos};
1498		1881
1499	unless ($map) {	1882	unless ($map) {
1500	# restore original map position	1883	# restore original map position
1501	($map, $x, $y) = @{ $link_pos || [] };	1884	($map, $x, $y) = @{ $link_pos || [] };
1502	$map = cf::map::find_map $map;	1885	$map = cf::map::find $map;
1503		1886
1504	unless ($map) {	1887	unless ($map) {
1505	($map, $x, $y) = @$EMERGENCY_POSITION;	1888	($map, $x, $y) = @$EMERGENCY_POSITION;
1506	$map = cf::map::find_map $map	1889	$map = cf::map::find $map
1507	or die "FATAL: cannot load emergency map\n";	1890	or die "FATAL: cannot load emergency map\n";
1508	}	1891	}
1509	}	1892	}
1510		1893
1511	($x, $y) = (-1, -1)	1894	($x, $y) = (-1, -1)
…		…
1514	# use -1 or undef as default coordinates, not 0, 0	1897	# use -1 or undef as default coordinates, not 0, 0
1515	($x, $y) = ($map->enter_x, $map->enter_y)	1898	($x, $y) = ($map->enter_x, $map->enter_y)
1516	if $x <=0 && $y <= 0;	1899	if $x <=0 && $y <= 0;
1517		1900
1518	$map->load;	1901	$map->load;
		1902	$map->load_diag;
1519		1903
		1904	return unless $self->contr->active;
1520	$self->activate_recursive;	1905	$self->activate_recursive;
		1906
		1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1521	$self->enter_map ($map, $x, $y);	1908	$self->enter_map ($map, $x, $y);
1522	}	1909	}
1523		1910
1524	cf::player->attach (	1911	cf::player->attach (
1525	on_logout => sub {	1912	on_logout => sub {
…		…
1537		1924
1538	# try to abort aborted map switching on player login :)	1925	# try to abort aborted map switching on player login :)
1539	# should happen only on crashes	1926	# should happen only on crashes
1540	if ($pl->ob->{_link_pos}) {	1927	if ($pl->ob->{_link_pos}) {
1541	$pl->ob->enter_link;	1928	$pl->ob->enter_link;
1542	Coro::async {	1929	(async {
		1930	$pl->ob->reply (undef,
		1931	"There was an internal problem at your last logout, "
		1932	. "the server will try to bring you to your intended destination in a second.",
		1933	cf::NDI_RED);
1543	# we need this sleep as the login has a concurrent enter_exit running	1934	# we need this sleep as the login has a concurrent enter_exit running
1544	# and this sleep increases chances of the player not ending up in scorn	1935	# and this sleep increases chances of the player not ending up in scorn
1545	Coro::Timer::sleep 1;	1936	Coro::Timer::sleep 1;
1546	$pl->ob->leave_link;	1937	$pl->ob->leave_link;
1547	};	1938	})->prio (2);
1548	}	1939	}
1549	},	1940	},
1550	);	1941	);
1551		1942
1552	=item $player_object->goto_map ($path, $x, $y)	1943	=item $player_object->goto ($path, $x, $y)
1553		1944
1554	=cut	1945	=cut
1555		1946
1556	sub cf::object::player::goto_map {	1947	sub cf::object::player::goto {
1557	my ($self, $path, $x, $y) = @_;	1948	my ($self, $path, $x, $y) = @_;
1558		1949
1559	$self->enter_link;	1950	$self->enter_link;
1560		1951
1561	(Coro::async {	1952	(async {
1562	$path = new cf::path $path;	1953	my $map = eval {
1563
1564	my $map = cf::map::find_map $path->as_string;	1954	my $map = cf::map::find $path;
1565	$map = $map->customise_for ($self) if $map;	1955	$map = $map->customise_for ($self) if $map;
1566		1956	$map
1567	# warn "entering ", $map->path, " at ($x, $y)\n"	1957	} or
1568	# if $map;
1569
1570	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1571		1959
1572	$self->leave_link ($map, $x, $y);	1960	$self->leave_link ($map, $x, $y);
1573	})->prio (1);	1961	})->prio (1);
1574	}	1962	}
1575		1963
…		…
1579		1967
1580	sub parse_random_map_params {	1968	sub parse_random_map_params {
1581	my ($spec) = @_;	1969	my ($spec) = @_;
1582		1970
1583	my $rmp = { # defaults	1971	my $rmp = { # defaults
1584	xsize => 10,	1972	xsize => (cf::rndm 15, 40),
1585	ysize => 10,	1973	ysize => (cf::rndm 15, 40),
		1974	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1975	#layout => string,
1586	};	1976	};
1587		1977
1588	for (split /\n/, $spec) {	1978	for (split /\n/, $spec) {
1589	my ($k, $v) = split /\s+/, $_, 2;	1979	my ($k, $v) = split /\s+/, $_, 2;
1590		1980
…		…
1594	$rmp	1984	$rmp
1595	}	1985	}
1596		1986
1597	sub prepare_random_map {	1987	sub prepare_random_map {
1598	my ($exit) = @_;	1988	my ($exit) = @_;
		1989
		1990	my $guard = cf::lock_acquire "exit_prepare:$exit";
1599		1991
1600	# all this does is basically replace the /! path by	1992	# all this does is basically replace the /! path by
1601	# a new random map path (?random/...) with a seed	1993	# a new random map path (?random/...) with a seed
1602	# that depends on the exit object	1994	# that depends on the exit object
1603		1995
1604	my $rmp = parse_random_map_params $exit->msg;	1996	my $rmp = parse_random_map_params $exit->msg;
1605		1997
1606	if ($exit->map) {	1998	if ($exit->map) {
1607	$rmp->{region} = $exit->map->region_name;	1999	$rmp->{region} = $exit->region->name;
1608	$rmp->{origin_map} = $exit->map->path;	2000	$rmp->{origin_map} = $exit->map->path;
1609	$rmp->{origin_x} = $exit->x;	2001	$rmp->{origin_x} = $exit->x;
1610	$rmp->{origin_y} = $exit->y;	2002	$rmp->{origin_y} = $exit->y;
1611	}	2003	}
1612		2004
1613	$rmp->{random_seed} ||= $exit->random_seed;	2005	$rmp->{random_seed} ||= $exit->random_seed;
1614		2006
1615	my $data = cf::to_json $rmp;	2007	my $data = cf::to_json $rmp;
1616	my $md5 = Digest::MD5::md5_hex $data;	2008	my $md5 = Digest::MD5::md5_hex $data;
		2009	my $meta = "$RANDOMDIR/$md5.meta";
1617		2010
1618	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2011	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1619	aio_write $fh, 0, (length $data), $data, 0;	2012	aio_write $fh, 0, (length $data), $data, 0;
		2013	undef $fh;
		2014	aio_rename "$meta~", $meta;
1620		2015
1621	$exit->slaying ("?random/$md5");	2016	$exit->slaying ("?random/$md5");
1622	$exit->msg (undef);	2017	$exit->msg (undef);
1623	}	2018	}
1624	}	2019	}
…		…
1626	sub cf::object::player::enter_exit {	2021	sub cf::object::player::enter_exit {
1627	my ($self, $exit) = @_;	2022	my ($self, $exit) = @_;
1628		2023
1629	return unless $self->type == cf::PLAYER;	2024	return unless $self->type == cf::PLAYER;
1630		2025
		2026	if ($exit->slaying eq "/!") {
		2027	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2028	# the problem is that $exit might not survive long enough
		2029	# so it needs to be done right now, right here
		2030	cf::sync_job { prepare_random_map $exit };
		2031	}
		2032
		2033	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2034	my $hp = $exit->stats->hp;
		2035	my $sp = $exit->stats->sp;
		2036
1631	$self->enter_link;	2037	$self->enter_link;
1632		2038
1633	(Coro::async {	2039	(async {
		2040	$self->deactivate_recursive; # just to be sure
1634	unless (eval {	2041	unless (eval {
1635		2042	$self->goto ($slaying, $hp, $sp);
1636	prepare_random_map $exit
1637	if $exit->slaying eq "/!";
1638
1639	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1640	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1641		2043
1642	1;	2044	1;
1643	}) {	2045	}) {
1644	$self->message ("Something went wrong deep within the crossfire server. "	2046	$self->message ("Something went wrong deep within the crossfire server. "
1645	. "I'll try to bring you back to the map you were before. "	2047	. "I'll try to bring you back to the map you were before. "
1646	. "Please report this to the dungeon master",	2048	. "Please report this to the dungeon master!",
1647	cf::NDI_UNIQUE | cf::NDI_RED);	2049	cf::NDI_UNIQUE | cf::NDI_RED);
1648		2050
1649	warn "ERROR in enter_exit: $@";	2051	warn "ERROR in enter_exit: $@";
1650	$self->leave_link;	2052	$self->leave_link;
1651	}	2053	}
1652	})->prio (1);	2054	})->prio (1);
…		…
1665		2067
1666	sub cf::client::send_drawinfo {	2068	sub cf::client::send_drawinfo {
1667	my ($self, $text, $flags) = @_;	2069	my ($self, $text, $flags) = @_;
1668		2070
1669	utf8::encode $text;	2071	utf8::encode $text;
1670	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2072	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1671	}	2073	}
1672		2074
		2075	=item $client->ext_event ($type, %msg)
		2076
		2077	Sends an exti event to the client.
		2078
		2079	=cut
		2080
		2081	sub cf::client::ext_event($$%) {
		2082	my ($self, $type, %msg) = @_;
		2083
		2084	$msg{msgtype} = "event_$type";
		2085	$self->send_packet ("ext " . cf::to_json \%msg);
		2086	}
1673		2087
1674	=item $success = $client->query ($flags, "text", \&cb)	2088	=item $success = $client->query ($flags, "text", \&cb)
1675		2089
1676	Queues a query to the client, calling the given callback with	2090	Queues a query to the client, calling the given callback with
1677	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2091	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1702	on_reply => sub {	2116	on_reply => sub {
1703	my ($ns, $msg) = @_;	2117	my ($ns, $msg) = @_;
1704		2118
1705	# this weird shuffling is so that direct followup queries	2119	# this weird shuffling is so that direct followup queries
1706	# get handled first	2120	# get handled first
1707	my $queue = delete $ns->{query_queue};	2121	my $queue = delete $ns->{query_queue}
		2122	or return; # be conservative, not sure how that can happen, but we saw a crash here
1708		2123
1709	(shift @$queue)->[1]->($msg);	2124	(shift @$queue)->[1]->($msg);
		2125	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1710		2126
1711	push @{ $ns->{query_queue} }, @$queue;	2127	push @{ $ns->{query_queue} }, @$queue;
1712		2128
1713	if (@{ $ns->{query_queue} } == @$queue) {	2129	if (@{ $ns->{query_queue} } == @$queue) {
1714	if (@$queue) {	2130	if (@$queue) {
…		…
1718	}	2134	}
1719	}	2135	}
1720	},	2136	},
1721	);	2137	);
1722		2138
1723	=item $client->coro (\&cb)	2139	=item $client->async (\&cb)
1724		2140
1725	Create a new coroutine, running the specified callback. The coroutine will	2141	Create a new coroutine, running the specified callback. The coroutine will
1726	be automatically cancelled when the client gets destroyed (e.g. on logout,	2142	be automatically cancelled when the client gets destroyed (e.g. on logout,
1727	or loss of connection).	2143	or loss of connection).
1728		2144
1729	=cut	2145	=cut
1730		2146
1731	sub cf::client::coro {	2147	sub cf::client::async {
1732	my ($self, $cb) = @_;	2148	my ($self, $cb) = @_;
1733		2149
1734	my $coro; $coro = async {	2150	my $coro = &Coro::async ($cb);
1735	eval {
1736	$cb->();
1737	};
1738	warn $@ if $@;
1739	};
1740		2151
1741	$coro->on_destroy (sub {	2152	$coro->on_destroy (sub {
1742	delete $self->{_coro}{$coro+0};	2153	delete $self->{_coro}{$coro+0};
1743	});	2154	});
1744		2155
…		…
1777		2188
1778	# here we export the classes and methods available to script code	2189	# here we export the classes and methods available to script code
1779		2190
1780	=pod	2191	=pod
1781		2192
1782	The following fucntions and emthods are available within a safe environment:	2193	The following functions and methods are available within a safe environment:
1783		2194
1784	cf::object contr pay_amount pay_player map	2195	cf::object contr pay_amount pay_player map
1785	cf::object::player player	2196	cf::object::player player
1786	cf::player peaceful	2197	cf::player peaceful
1787	cf::map trigger	2198	cf::map trigger
…		…
1872	#############################################################################	2283	#############################################################################
1873		2284
1874	=head2 EXTENSION DATABASE SUPPORT	2285	=head2 EXTENSION DATABASE SUPPORT
1875		2286
1876	Crossfire maintains a very simple database for extension use. It can	2287	Crossfire maintains a very simple database for extension use. It can
1877	currently store anything that can be serialised using Storable, which	2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1878	excludes objects.	2289	convert to/from binary).
1879		2290
1880	The parameter C<$family> should best start with the name of the extension	2291	The parameter C<$family> should best start with the name of the extension
1881	using it, it should be unique.	2292	using it, it should be unique.
1882		2293
1883	=over 4	2294	=over 4
1884		2295
1885	=item $hashref = cf::db_get $family
1886
1887	Return a hashref for use by the extension C<$family>, which can be
1888	modified. After modifications, you have to call C<cf::db_dirty> or
1889	C<cf::db_sync>.
1890
1891	=item $value = cf::db_get $family => $key	2296	=item $value = cf::db_get $family => $key
1892		2297
1893	Returns a single value from the database	2298	Returns a single value from the database.
1894
1895	=item cf::db_put $family => $hashref
1896
1897	Stores the given family hashref into the database. Updates are delayed, if
1898	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1899		2299
1900	=item cf::db_put $family => $key => $value	2300	=item cf::db_put $family => $key => $value
1901		2301
1902	Stores the given C<$value> in the family hash. Updates are delayed, if you	2302	Stores the given C<$value> in the family.
1903	want the data to be synced to disk immediately, use C<cf::db_sync>.
1904
1905	=item cf::db_dirty
1906
1907	Marks the database as dirty, to be updated at a later time.
1908
1909	=item cf::db_sync
1910
1911	Immediately write the database to disk I<if it is dirty>.
1912		2303
1913	=cut	2304	=cut
1914		2305
1915	our $DB;	2306	our $DB;
1916		2307
1917	{	2308	sub db_init {
1918	my $path = cf::localdir . "/database.pst";	2309	unless ($DB) {
		2310	$DB = BDB::db_create $DB_ENV;
1919		2311
1920	sub db_load() {	2312	cf::sync_job {
1921	$DB = stat $path ? Storable::retrieve $path : { };	2313	eval {
1922	}	2314	$DB->set_flags (BDB::CHKSUM);
1923		2315
1924	my $pid;	2316	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1925		2317	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1926	sub db_save() {	2318	cf::cleanup "db_open(db): $!" if $!;
1927	waitpid $pid, 0 if $pid;	2319	};
1928	if (0 == ($pid = fork)) {	2320	cf::cleanup "db_open(db): $@" if $@;
1929	$DB->{_meta}{version} = 1;
1930	Storable::nstore $DB, "$path~";
1931	rename "$path~", $path;
1932	cf::_exit 0 if defined $pid;
1933	}	2321	};
1934	}
1935
1936	my $dirty;
1937
1938	sub db_sync() {
1939	db_save if $dirty;
1940	undef $dirty;
1941	}
1942
1943	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1944	db_sync;
1945	});	2322	}
		2323	}
1946		2324
1947	sub db_dirty() {
1948	$dirty = 1;
1949	$idle->start;
1950	}
1951
1952	sub db_get($;$) {	2325	sub db_get($$) {
1953	@_ >= 2	2326	my $key = "$_[0]/$_[1]";
1954	? $DB->{$_[0]}{$_[1]}
1955	: ($DB->{$_[0]} ||= { })
1956	}
1957		2327
		2328	cf::sync_job {
		2329	BDB::db_get $DB, undef, $key, my $data;
		2330
		2331	$! ? ()
		2332	: $data
		2333	}
		2334	}
		2335
1958	sub db_put($$;$) {	2336	sub db_put($$$) {
1959	if (@_ >= 3) {	2337	BDB::dbreq_pri 4;
1960	$DB->{$_[0]}{$_[1]} = $_[2];	2338	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1961	} else {	2339	}
1962	$DB->{$_[0]} = $_[1];
1963	}
1964	db_dirty;
1965	}
1966		2340
1967	cf::global->attach (	2341	=item cf::cache $id => [$paths...], $processversion => $process
1968	prio => 10000,	2342
1969	on_cleanup => sub {	2343	Generic caching function that returns the value of the resource $id,
1970	db_sync;	2344	caching and regenerating as required.
		2345
		2346	This function can block.
		2347
		2348	=cut
		2349
		2350	sub cache {
		2351	my ($id, $src, $processversion, $process) = @_;
		2352
		2353	my $meta =
		2354	join "\x00",
		2355	$processversion,
		2356	map {
		2357	aio_stat $_
		2358	and Carp::croak "$_: $!";
		2359
		2360	($_, (stat _)[7,9])
		2361	} @$src;
		2362
		2363	my $dbmeta = db_get cache => "$id/meta";
		2364	if ($dbmeta ne $meta) {
		2365	# changed, we may need to process
		2366
		2367	my @data;
		2368	my $md5;
		2369
		2370	for (0 .. $#$src) {
		2371	0 <= aio_load $src->[$_], $data[$_]
		2372	or Carp::croak "$src->[$_]: $!";
1971	},	2373	}
1972	);	2374
		2375	# if processing is expensive, check
		2376	# checksum first
		2377	if (1) {
		2378	$md5 =
		2379	join "\x00",
		2380	$processversion,
		2381	map {
		2382	Coro::cede;
		2383	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2384	} 0.. $#$src;
		2385
		2386
		2387	my $dbmd5 = db_get cache => "$id/md5";
		2388	if ($dbmd5 eq $md5) {
		2389	db_put cache => "$id/meta", $meta;
		2390
		2391	return db_get cache => "$id/data";
		2392	}
		2393	}
		2394
		2395	my $t1 = Time::HiRes::time;
		2396	my $data = $process->(\@data);
		2397	my $t2 = Time::HiRes::time;
		2398
		2399	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2400
		2401	db_put cache => "$id/data", $data;
		2402	db_put cache => "$id/md5" , $md5;
		2403	db_put cache => "$id/meta", $meta;
		2404
		2405	return $data;
		2406	}
		2407
		2408	db_get cache => "$id/data"
1973	}	2409	}
		2410
		2411	=item fork_call { }, $args
		2412
		2413	Executes the given code block with the given arguments in a seperate
		2414	process, returning the results. Everything must be serialisable with
		2415	Coro::Storable. May, of course, block. Note that the executed sub may
		2416	never block itself or use any form of Event handling.
		2417
		2418	=cut
		2419
		2420	sub fork_call(&@) {
		2421	my ($cb, @args) = @_;
		2422
		2423	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2424	# or die "socketpair: $!";
		2425	pipe my $fh1, my $fh2
		2426	or die "pipe: $!";
		2427
		2428	if (my $pid = fork) {
		2429	close $fh2;
		2430
		2431	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2432	$res = Coro::Storable::thaw $res;
		2433
		2434	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2435
		2436	die $$res unless "ARRAY" eq ref $res;
		2437
		2438	return wantarray ? @$res : $res->[-1];
		2439	} else {
		2440	local $SIG{__WARN__};
		2441	eval {
		2442	local $SIG{__DIE__};
		2443	close $fh1;
		2444
		2445	my @res = eval { $cb->(@args) };
		2446	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2447	};
		2448
		2449	warn $@ if $@;
		2450	_exit 0;
		2451	}
		2452	}
		2453
		2454
1974		2455
1975	#############################################################################	2456	#############################################################################
1976	# the server's main()	2457	# the server's init and main functions
		2458
		2459	sub load_facedata($) {
		2460	my ($path) = @_;
		2461
		2462	warn "loading facedata from $path\n";
		2463
		2464	my $facedata;
		2465	0 < aio_load $path, $facedata
		2466	or die "$path: $!";
		2467
		2468	$facedata = Coro::Storable::thaw $facedata;
		2469
		2470	$facedata->{version} == 2
		2471	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2472
		2473	{
		2474	my $faces = $facedata->{faceinfo};
		2475
		2476	while (my ($face, $info) = each %$faces) {
		2477	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2478	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2479	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2480	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2481	Coro::cede;
		2482	}
		2483
		2484	while (my ($face, $info) = each %$faces) {
		2485	next unless $info->{smooth};
		2486	my $idx = cf::face::find $face
		2487	or next;
		2488	if (my $smooth = cf::face::find $info->{smooth}) {
		2489	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2490	} else {
		2491	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2492	}
		2493	Coro::cede;
		2494	}
		2495	}
		2496
		2497	{
		2498	my $anims = $facedata->{animinfo};
		2499
		2500	while (my ($anim, $info) = each %$anims) {
		2501	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2502	Coro::cede;
		2503	}
		2504
		2505	cf::anim::invalidate_all; # d'oh
		2506	}
		2507
		2508	1
		2509	}
		2510
		2511	sub reload_regions {
		2512	load_resource_file "$MAPDIR/regions"
		2513	or die "unable to load regions file\n";
		2514	}
		2515
		2516	sub reload_facedata {
		2517	load_facedata "$DATADIR/facedata"
		2518	or die "unable to load facedata\n";
		2519	}
		2520
		2521	sub reload_archetypes {
		2522	load_resource_file "$DATADIR/archetypes"
		2523	or die "unable to load archetypes\n";
		2524	}
		2525
		2526	sub reload_treasures {
		2527	load_resource_file "$DATADIR/treasures"
		2528	or die "unable to load treasurelists\n";
		2529	}
		2530
		2531	sub reload_resources {
		2532	warn "reloading resource files...\n";
		2533
		2534	reload_regions;
		2535	reload_facedata;
		2536	reload_archetypes;
		2537	reload_treasures;
		2538
		2539	warn "finished reloading resource files\n";
		2540	}
		2541
		2542	sub init {
		2543	reload_resources;
		2544	}
1977		2545
1978	sub cfg_load {	2546	sub cfg_load {
1979	open my $fh, "<:utf8", cf::confdir . "/config"	2547	open my $fh, "<:utf8", "$CONFDIR/config"
1980	or return;	2548	or return;
1981		2549
1982	local $/;	2550	local $/;
1983	*CFG = YAML::Syck::Load <$fh>;	2551	*CFG = YAML::Syck::Load <$fh>;
		2552
		2553	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2554
		2555	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2556	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2557
		2558	if (exists $CFG{mlockall}) {
		2559	eval {
		2560	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2561	and die "WARNING: m(un)lockall failed: $!\n";
		2562	};
		2563	warn $@ if $@;
		2564	}
1984	}	2565	}
1985		2566
1986	sub main {	2567	sub main {
1987	# we must not ever block the main coroutine	2568	# we must not ever block the main coroutine
1988	local $Coro::idle = sub {	2569	local $Coro::idle = sub {
1989	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2570	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1990	(Coro::unblock_sub {	2571	(async {
1991	Event::one_event;	2572	Event::one_event;
1992	})->();	2573	})->prio (Coro::PRIO_MAX);
1993	};	2574	};
1994		2575
1995	cfg_load;	2576	cfg_load;
1996	db_load;	2577	db_init;
1997	load_extensions;	2578	load_extensions;
		2579
		2580	$TICK_WATCHER->start;
1998	Event::loop;	2581	Event::loop;
1999	}	2582	}
2000		2583
2001	#############################################################################	2584	#############################################################################
2002	# initialisation	2585	# initialisation and cleanup
2003		2586
		2587	# install some emergency cleanup handlers
		2588	BEGIN {
		2589	for my $signal (qw(INT HUP TERM)) {
		2590	Event->signal (
		2591	reentrant => 0,
		2592	data => WF_AUTOCANCEL,
		2593	signal => $signal,
		2594	prio => 0,
		2595	cb => sub {
		2596	cf::cleanup "SIG$signal";
		2597	},
		2598	);
		2599	}
		2600	}
		2601
		2602	sub emergency_save() {
		2603	my $freeze_guard = cf::freeze_mainloop;
		2604
		2605	warn "enter emergency perl save\n";
		2606
		2607	cf::sync_job {
		2608	# use a peculiar iteration method to avoid tripping on perl
		2609	# refcount bugs in for. also avoids problems with players
		2610	# and maps saved/destroyed asynchronously.
		2611	warn "begin emergency player save\n";
		2612	for my $login (keys %cf::PLAYER) {
		2613	my $pl = $cf::PLAYER{$login} or next;
		2614	$pl->valid or next;
		2615	$pl->save;
		2616	}
		2617	warn "end emergency player save\n";
		2618
		2619	warn "begin emergency map save\n";
		2620	for my $path (keys %cf::MAP) {
		2621	my $map = $cf::MAP{$path} or next;
		2622	$map->valid or next;
		2623	$map->save;
		2624	}
		2625	warn "end emergency map save\n";
		2626
		2627	warn "begin emergency database checkpoint\n";
		2628	BDB::db_env_txn_checkpoint $DB_ENV;
		2629	warn "end emergency database checkpoint\n";
		2630	};
		2631
		2632	warn "leave emergency perl save\n";
		2633	}
		2634
		2635	sub post_cleanup {
		2636	my ($make_core) = @_;
		2637
		2638	warn Carp::longmess "post_cleanup backtrace"
		2639	if $make_core;
		2640	}
		2641
2004	sub reload() {	2642	sub do_reload_perl() {
2005	# can/must only be called in main	2643	# can/must only be called in main
2006	if ($Coro::current != $Coro::main) {	2644	if ($Coro::current != $Coro::main) {
2007	warn "can only reload from main coroutine\n";	2645	warn "can only reload from main coroutine";
2008	return;	2646	return;
2009	}	2647	}
2010		2648
2011	warn "reloading...";	2649	warn "reloading...";
2012		2650
2013	local $FREEZE = 1;	2651	warn "entering sync_job";
		2652
		2653	cf::sync_job {
		2654	cf::write_runtime; # external watchdog should not bark
2014	cf::emergency_save;	2655	cf::emergency_save;
		2656	cf::write_runtime; # external watchdog should not bark
2015		2657
2016	eval {	2658	warn "syncing database to disk";
		2659	BDB::db_env_txn_checkpoint $DB_ENV;
		2660
2017	# if anything goes wrong in here, we should simply crash as we already saved	2661	# if anything goes wrong in here, we should simply crash as we already saved
2018		2662
2019	# cancel all watchers	2663	warn "cancelling all WF_AUTOCANCEL watchers";
2020	for (Event::all_watchers) {	2664	for (Event::all_watchers) {
2021	$_->cancel if $_->data & WF_AUTOCANCEL;	2665	$_->cancel if $_->data & WF_AUTOCANCEL;
2022	}	2666	}
2023		2667
		2668	warn "flushing outstanding aio requests";
		2669	for (;;) {
		2670	BDB::flush;
		2671	IO::AIO::flush;
		2672	Coro::cede;
		2673	last unless IO::AIO::nreqs || BDB::nreqs;
		2674	warn "iterate...";
		2675	}
		2676
		2677	++$RELOAD;
		2678
2024	# cancel all extension coros	2679	warn "cancelling all extension coros";
2025	$_->cancel for values %EXT_CORO;	2680	$_->cancel for values %EXT_CORO;
2026	%EXT_CORO = ();	2681	%EXT_CORO = ();
2027		2682
2028	# unload all extensions	2683	warn "removing commands";
2029	for (@exts) {	2684	%COMMAND = ();
		2685
		2686	warn "removing ext commands";
		2687	%EXTCMD = ();
		2688
		2689	warn "unloading/nuking all extensions";
		2690	for my $pkg (@EXTS) {
2030	warn "unloading <$_>";	2691	warn "... unloading $pkg";
2031	unload_extension $_;	2692
		2693	if (my $cb = $pkg->can ("unload")) {
		2694	eval {
		2695	$cb->($pkg);
		2696	1
		2697	} or warn "$pkg unloaded, but with errors: $@";
2032	}	2698	}
2033		2699
		2700	warn "... nuking $pkg";
		2701	Symbol::delete_package $pkg;
		2702	}
		2703
2034	# unload all modules loaded from $LIBDIR	2704	warn "unloading all perl modules loaded from $LIBDIR";
2035	while (my ($k, $v) = each %INC) {	2705	while (my ($k, $v) = each %INC) {
2036	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2706	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2037		2707
2038	warn "removing <$k>";	2708	warn "... unloading $k";
2039	delete $INC{$k};	2709	delete $INC{$k};
2040		2710
2041	$k =~ s/\.pm$//;	2711	$k =~ s/\.pm$//;
2042	$k =~ s/\//::/g;	2712	$k =~ s/\//::/g;
2043		2713
…		…
2046	}	2716	}
2047		2717
2048	Symbol::delete_package $k;	2718	Symbol::delete_package $k;
2049	}	2719	}
2050		2720
2051	# sync database to disk
2052	cf::db_sync;
2053	IO::AIO::flush;
2054
2055	# get rid of safe::, as good as possible	2721	warn "getting rid of safe::, as good as possible";
2056	Symbol::delete_package "safe::$_"	2722	Symbol::delete_package "safe::$_"
2057	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2723	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2058		2724
2059	# remove register_script_function callbacks
2060	# TODO
2061
2062	# unload cf.pm "a bit"	2725	warn "unloading cf.pm \"a bit\"";
2063	delete $INC{"cf.pm"};	2726	delete $INC{"cf.pm"};
		2727	delete $INC{"cf/pod.pm"};
2064		2728
2065	# don't, removes xs symbols, too,	2729	# don't, removes xs symbols, too,
2066	# and global variables created in xs	2730	# and global variables created in xs
2067	#Symbol::delete_package __PACKAGE__;	2731	#Symbol::delete_package __PACKAGE__;
2068		2732
2069	# reload cf.pm	2733	warn "unload completed, starting to reload now";
		2734
2070	warn "reloading cf.pm";	2735	warn "reloading cf.pm";
2071	require cf;	2736	require cf;
2072	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2737	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2073		2738
2074	# load config and database again	2739	warn "loading config and database again";
2075	cf::cfg_load;	2740	cf::cfg_load;
2076	cf::db_load;
2077		2741
2078	# load extensions
2079	warn "load extensions";	2742	warn "loading extensions";
2080	cf::load_extensions;	2743	cf::load_extensions;
2081		2744
2082	# reattach attachments to objects	2745	warn "reattaching attachments to objects/players";
2083	warn "reattach";	2746	_global_reattach; # objects, sockets
2084	_global_reattach;	2747	warn "reattaching attachments to maps";
2085	};	2748	reattach $_ for values %MAP;
		2749	warn "reattaching attachments to players";
		2750	reattach $_ for values %PLAYER;
2086		2751
2087	if ($@) {	2752	warn "leaving sync_job";
		2753
		2754	1
		2755	} or do {
2088	warn $@;	2756	warn $@;
2089	warn "error while reloading, exiting.";	2757	warn "error while reloading, exiting.";
2090	exit 1;	2758	exit 1;
2091	}	2759	};
2092		2760
2093	warn "reloaded successfully";	2761	warn "reloaded";
2094	};	2762	};
2095		2763
2096	#############################################################################	2764	our $RELOAD_WATCHER; # used only during reload
2097		2765
2098	unless ($LINK_MAP) {	2766	sub reload_perl() {
2099	$LINK_MAP = cf::map::new;	2767	# doing reload synchronously and two reloads happen back-to-back,
		2768	# coro crashes during coro_state_free->destroy here.
2100		2769
2101	$LINK_MAP->width (41);	2770	$RELOAD_WATCHER ||= Event->timer (
2102	$LINK_MAP->height (41);	2771	reentrant => 0,
2103	$LINK_MAP->alloc;
2104	$LINK_MAP->path ("{link}");
2105	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2106	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2107
2108	# dirty hack because... archetypes are not yet loaded
2109	Event->timer (
2110	after => 2,	2772	after => 0,
		2773	data => WF_AUTOCANCEL,
2111	cb => sub {	2774	cb => sub {
2112	$_[0]->w->cancel;	2775	do_reload_perl;
2113		2776	undef $RELOAD_WATCHER;
2114	# provide some exits "home"
2115	my $exit = cf::object::new "exit";
2116
2117	$exit->slaying ($EMERGENCY_POSITION->[0]);
2118	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2119	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2120
2121	$LINK_MAP->insert ($exit->clone, 19, 19);
2122	$LINK_MAP->insert ($exit->clone, 19, 20);
2123	$LINK_MAP->insert ($exit->clone, 19, 21);
2124	$LINK_MAP->insert ($exit->clone, 20, 19);
2125	$LINK_MAP->insert ($exit->clone, 20, 21);
2126	$LINK_MAP->insert ($exit->clone, 21, 19);
2127	$LINK_MAP->insert ($exit->clone, 21, 20);
2128	$LINK_MAP->insert ($exit->clone, 21, 21);
2129
2130	$exit->destroy;
2131	});	2777	},
2132		2778	);
2133	$LINK_MAP->{deny_save} = 1;
2134	$LINK_MAP->{deny_reset} = 1;
2135
2136	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2137	}	2779	}
2138
2139	register "<global>", __PACKAGE__;
2140		2780
2141	register_command "reload" => sub {	2781	register_command "reload" => sub {
2142	my ($who, $arg) = @_;	2782	my ($who, $arg) = @_;
2143		2783
2144	if ($who->flag (FLAG_WIZ)) {	2784	if ($who->flag (FLAG_WIZ)) {
2145	$who->message ("start of reload.");
2146	reload;
2147	$who->message ("end of reload.");	2785	$who->message ("reloading server.");
		2786	async { reload_perl };
2148	}	2787	}
2149	};	2788	};
2150		2789
2151	unshift @INC, $LIBDIR;	2790	unshift @INC, $LIBDIR;
		2791
		2792	my $bug_warning = 0;
		2793
		2794	our @WAIT_FOR_TICK;
		2795	our @WAIT_FOR_TICK_BEGIN;
		2796
		2797	sub wait_for_tick {
		2798	return unless $TICK_WATCHER->is_active;
		2799	return if $Coro::current == $Coro::main;
		2800
		2801	my $signal = new Coro::Signal;
		2802	push @WAIT_FOR_TICK, $signal;
		2803	$signal->wait;
		2804	}
		2805
		2806	sub wait_for_tick_begin {
		2807	return unless $TICK_WATCHER->is_active;
		2808	return if $Coro::current == $Coro::main;
		2809
		2810	my $signal = new Coro::Signal;
		2811	push @WAIT_FOR_TICK_BEGIN, $signal;
		2812	$signal->wait;
		2813	}
2152		2814
2153	$TICK_WATCHER = Event->timer (	2815	$TICK_WATCHER = Event->timer (
2154	reentrant => 0,	2816	reentrant => 0,
		2817	parked => 1,
2155	prio => 0,	2818	prio => 0,
2156	at => $NEXT_TICK || $TICK,	2819	at => $NEXT_TICK || $TICK,
2157	data => WF_AUTOCANCEL,	2820	data => WF_AUTOCANCEL,
2158	cb => sub {	2821	cb => sub {
2159	unless ($FREEZE) {	2822	if ($Coro::current != $Coro::main) {
		2823	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2824	unless ++$bug_warning > 10;
		2825	return;
		2826	}
		2827
		2828	$NOW = Event::time;
		2829
2160	cf::server_tick; # one server iteration	2830	cf::server_tick; # one server iteration
		2831
2161	$RUNTIME += $TICK;	2832	$RUNTIME += $TICK;
2162	}
2163
2164	$NEXT_TICK += $TICK;	2833	$NEXT_TICK += $TICK;
		2834
		2835	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2836	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2837	Coro::async_pool {
		2838	write_runtime
		2839	or warn "ERROR: unable to write runtime file: $!";
		2840	};
		2841	}
		2842
		2843	# my $AFTER = Event::time;
		2844	# warn $AFTER - $NOW;#d#
2165		2845
2166	# if we are delayed by four ticks or more, skip them all	2846	# if we are delayed by four ticks or more, skip them all
2167	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2847	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2168		2848
2169	$TICK_WATCHER->at ($NEXT_TICK);	2849	$TICK_WATCHER->at ($NEXT_TICK);
2170	$TICK_WATCHER->start;	2850	$TICK_WATCHER->start;
		2851
		2852	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2853	$sig->send;
		2854	}
		2855	while (my $sig = shift @WAIT_FOR_TICK) {
		2856	$sig->send;
		2857	}
		2858
		2859	_post_tick;
2171	},	2860	},
2172	);	2861	);
2173		2862
		2863	{
2174	IO::AIO::max_poll_time $TICK * 0.2;	2864	BDB::max_poll_time $TICK * 0.1;
2175		2865	$BDB_POLL_WATCHER = Event->io (
2176	Event->io (	2866	reentrant => 0,
2177	fd => IO::AIO::poll_fileno,	2867	fd => BDB::poll_fileno,
2178	poll => 'r',	2868	poll => 'r',
2179	prio => 5,	2869	prio => 0,
2180	data => WF_AUTOCANCEL,
2181	cb => \&IO::AIO::poll_cb,
2182	);
2183
2184	Event->timer (
2185	data => WF_AUTOCANCEL,	2870	data => WF_AUTOCANCEL,
2186	after => 0,	2871	cb => \&BDB::poll_cb,
2187	interval => 10,	2872	);
2188	cb => sub {	2873	BDB::min_parallel 8;
2189	(Coro::unblock_sub {	2874
2190	write_runtime	2875	BDB::set_sync_prepare {
2191	or warn "ERROR: unable to write runtime file: $!";	2876	my $status;
		2877	my $current = $Coro::current;
		2878	(
		2879	sub {
		2880	$status = $!;
		2881	$current->ready; undef $current;
		2882	},
		2883	sub {
		2884	Coro::schedule while defined $current;
		2885	$! = $status;
		2886	},
		2887	)
		2888	};
		2889
		2890	unless ($DB_ENV) {
		2891	$DB_ENV = BDB::db_env_create;
		2892
		2893	cf::sync_job {
		2894	eval {
		2895	BDB::db_env_open
		2896	$DB_ENV,
		2897	$BDBDIR,
		2898	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2899	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2900	0666;
		2901
		2902	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2903
		2904	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2905	$DB_ENV->set_lk_detect;
		2906	};
		2907
		2908	cf::cleanup "db_env_open(db): $@" if $@;
2192	})->();	2909	};
2193	},	2910	}
2194	);	2911	}
		2912
		2913	{
		2914	IO::AIO::min_parallel 8;
		2915
		2916	undef $Coro::AIO::WATCHER;
		2917	IO::AIO::max_poll_time $TICK * 0.1;
		2918	$AIO_POLL_WATCHER = Event->io (
		2919	reentrant => 0,
		2920	data => WF_AUTOCANCEL,
		2921	fd => IO::AIO::poll_fileno,
		2922	poll => 'r',
		2923	prio => 6,
		2924	cb => \&IO::AIO::poll_cb,
		2925	);
		2926	}
		2927
		2928	sub _log_backtrace {
		2929	my ($msg, @addr) = @_;
		2930
		2931	async {
		2932	my @bt = fork_call {
		2933	@addr = map { sprintf "%x", $_ } @addr;
		2934	open my $fh, "exec addr2line -C -f -i -e \Q$^X\E @addr 2>&1 |"
		2935	or die "addr2line: $!";
		2936
		2937	my @funcs;
		2938	my @res = <$fh>;
		2939	chomp for @res;
		2940	while (@res) {
		2941	my ($func, $line) = splice @res, 0, 2, ();
		2942	push @funcs, "[$func] $line";
		2943	}
		2944
		2945	@funcs
		2946	};
		2947
		2948	$msg =~ s/\n//;
		2949
		2950	LOG llevInfo, "[ABT] $msg\n";
		2951	LOG llevInfo, "[ABT] $_\n" for @bt;
		2952	};
		2953	}
		2954
		2955	# load additional modules
		2956	use cf::pod;
		2957
		2958	END { cf::emergency_save }
2195		2959
2196	1	2960	1
2197		2961

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