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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.132 by root, Thu Jan 4 01:35:56 2007 UTC vs.
Revision 1.256 by root, Sat Apr 21 16:56:32 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		94
58	binmode STDOUT;	95	binmode STDOUT;
59	binmode STDERR;	96	binmode STDERR;
60		97
61	# read virtual server time, if available	98	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
66	}	103	}
67		104
68	mkdir cf::localdir;	105	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		107
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	108	our $EMERGENCY_POSITION;
		109
		110	sub cf::map::normalise;
77		111
78	#############################################################################	112	#############################################################################
79		113
80	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
81		115
…		…
88	=item $cf::RUNTIME	122	=item $cf::RUNTIME
89		123
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	124	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	125	every server tick.
92		126
93	=item $cf::LIBDIR	127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		130
95	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		133	unique-items directory, player file directory, random maps directory and
		134	database environment.
97		135
98	=item $cf::NOW	136	=item $cf::NOW
99		137
100	The time of the last (current) server tick.	138	The time of the last (current) server tick.
101		139
…		…
105		143
106	=item %cf::CFG	144	=item %cf::CFG
107		145
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	from wherever your confdir points to.	147	from wherever your confdir points to.
		148
		149	=item cf::wait_for_tick, cf::wait_for_tick_begin
		150
		151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		152	returns directly I<after> the tick processing (and consequently, can only wake one process
		153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
110		154
111	=back	155	=back
112		156
113	=cut	157	=cut
114		158
115	BEGIN {	159	BEGIN {
116	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	161	my $msg = join "", @_;
118	utf8::encode $msg;
119		162
120	$msg .= "\n"	163	$msg .= "\n"
121	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
122		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
123	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
124	};	170	};
125	}	171	}
126		172
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
146		192
147	$Event::DIED = sub {	193	$Event::DIED = sub {
148	warn "error in event callback: @_";	194	warn "error in event callback: @_";
149	};	195	};
150		196
151	my %ext_pkg;
152	my @exts;
153	my @hook;
154
155	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
156		198
157	=over 4	199	=over 4
158		200
159	=cut	201	=item dumpval $ref
160		202
		203	=cut
		204
		205	sub dumpval {
		206	eval {
		207	local $SIG{__DIE__};
		208	my $d;
		209	if (1) {
		210	$d = new Data::Dumper([$_[0]], ["*var"]);
		211	$d->Terse(1);
		212	$d->Indent(2);
		213	$d->Quotekeys(0);
		214	$d->Useqq(1);
		215	#$d->Bless(...);
		216	$d->Seen($_[1]) if @_ > 1;
		217	$d = $d->Dump();
		218	}
		219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		220	$d
		221	} || "[unable to dump $_[0]: '$@']";
		222	}
		223
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
162		225
163	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
164		227
165	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
166		229
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
175		231
176	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
177		233
178	=cut
179
180	sub to_json($) {
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184
185	=item my $guard = cf::guard { BLOCK }
186
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206
207	=item cf::lock_wait $string	234	=item cf::lock_wait $string
208		235
209	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
210		237
211	=item my $lock = cf::lock_acquire $string	238	=item my $lock = cf::lock_acquire $string
212		239
213	Wait until the given lock is available and then acquires it and returns	240	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	242	for example when the coroutine gets canceled), the lock is automatically
216	returned.	243	returned.
217		244
218	Lock names should begin with a unique identifier (for example, find_map	245	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	246	uses map_find and cf::map::load uses map_load).
		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
220		251
221	=cut	252	=cut
222		253
223	our %LOCK;	254	our %LOCK;
224		255
…		…
238	# wait, to be sure we are not locked	269	# wait, to be sure we are not locked
239	lock_wait $key;	270	lock_wait $key;
240		271
241	$LOCK{$key} = [];	272	$LOCK{$key} = [];
242		273
243	cf::guard {	274	Coro::guard {
244	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
246	}	277	}
247	}	278	}
248		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
		286	sub freeze_mainloop {
		287	return unless $TICK_WATCHER->is_active;
		288
		289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
		292	$TICK_WATCHER->stop;
		293	$guard
		294	}
		295
249	=item cf::async { BLOCK }	296	=item cf::async { BLOCK }
250		297
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	298	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
253		301
254	=cut	302	=cut
255		303
256	sub async(&) {	304	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		305
265	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
266		307
267	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
268	always able to handle events or runnable, as crossfire+ is only partly	309	always able to handle events or runnable, as crossfire+ is only partly
…		…
282	# this is the main coro, too bad, we have to block	323	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	324	# till the operation succeeds, freezing the server :/
284		325
285	# TODO: use suspend/resume instead	326	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	327	# (but this is cancel-safe)
287	local $FREEZE = 1;	328	my $freeze_guard = freeze_mainloop;
288		329
289	my $busy = 1;	330	my $busy = 1;
290	my @res;	331	my @res;
291		332
292	(Coro::async {	333	(async {
293	@res = eval { $job->() };	334	@res = eval { $job->() };
294	warn $@ if $@;	335	warn $@ if $@;
295	undef $busy;	336	undef $busy;
296	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
297		338
298	while ($busy) {	339	while ($busy) {
299	Coro::cede_notself;	340	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	341	}
302		342
303	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
304	} else {	344	} else {
305	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
306		346
307	$job->()	347	$job->()
308	}	348	}
309	}	349	}
310		350
311	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
312		352
313	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
315		355
316	=cut	356	=cut
317		357
318	sub coro(&) {	358	sub async_ext(&) {
319	my $cb = shift;	359	my $cb = shift;
320		360
321	my $coro = &cf::async ($cb);	361	my $coro = &Coro::async ($cb);
322		362
323	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
325	});	365	});
326	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
327		367
328	$coro	368	$coro
329	}	369	}
330		370
331	sub write_runtime {	371	sub write_runtime {
332	my $runtime = cf::localdir . "/runtime";	372	my $guard = cf::lock_acquire "write_runtime";
		373
		374	my $runtime = "$LOCALDIR/runtime";
333		375
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
335	or return;	377	or return;
336		378
		379	my $value = $cf::RUNTIME + 90 + 10;
337	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
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0	383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;	384	and return;
340		385
		386	# always fsync - this file is important
341	aio_fsync $fh	387	aio_fsync $fh
342	and return;	388	and return;
343		389
344	close $fh	390	close $fh
345	or return;	391	or return;
…		…
348	and return;	394	and return;
349		395
350	1	396	1
351	}	397	}
352		398
		399	=item cf::datalog type => key => value, ...
		400
		401	Log a datalog packet of the given type with the given key-value pairs.
		402
		403	=cut
		404
		405	sub datalog($@) {
		406	my ($type, %kv) = @_;
		407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		408	}
		409
353	=back	410	=back
354		411
355	=cut	412	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		413
477	#############################################################################	414	#############################################################################
478		415
479	=head2 ATTACHABLE OBJECTS	416	=head2 ATTACHABLE OBJECTS
480		417
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	543	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	544	our @CB_MAP = ();
608		545
609	my %attachment;	546	my %attachment;
610		547
		548	sub cf::attachable::thawer_merge {
		549	# simply override everything except _meta
		550	local $_[0]{_meta};
		551	%{$_[0]} = %{$_[1]};
		552	}
		553
611	sub _attach_cb($$$$) {	554	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	555	my ($registry, $event, $prio, $cb) = @_;
613		556
614	use sort 'stable';	557	use sort 'stable';
615		558
…		…
786	# object support	729	# object support
787		730
788	sub reattach {	731	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	732	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	733	my ($obj) = @_;
		734
		735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		736
792	my $registry = $obj->registry;	737	my $registry = $obj->registry;
793		738
794	@$registry = ();	739	@$registry = ();
795		740
…		…
842	$filename, length $$rdata, scalar @$objs;	787	$filename, length $$rdata, scalar @$objs;
843		788
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	790	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	792	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	793	close $fh;
849		794
850	if (@$objs) {	795	if (@$objs) {
851	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) {
852	chmod SAVE_MODE, $fh;	797	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	798	my $data = Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	799	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	800	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	801	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	802	aio_rename "$filename.pst~", "$filename.pst";
858	}	803	}
859	} else {	804	} else {
860	aio_unlink "$filename.pst";	805	aio_unlink "$filename.pst";
…		…
927	=cut	872	=cut
928		873
929	sub register_extcmd {	874	sub register_extcmd {
930	my ($name, $cb) = @_;	875	my ($name, $cb) = @_;
931		876
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	877	$EXTCMD{$name} = $cb;
936	}	878	}
937		879
938	cf::player->attach (	880	cf::player->attach (
939	on_command => sub {	881	on_command => sub {
940	my ($pl, $name, $params) = @_;	882	my ($pl, $name, $params) = @_;
…		…
953		895
954	my $msg = eval { from_json $buf };	896	my $msg = eval { from_json $buf };
955		897
956	if (ref $msg) {	898	if (ref $msg) {
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	900	if (my %reply = $cb->($pl, $msg)) {
959	$pl->ext_reply ($msg->{msgid}, %reply);	901	$pl->ext_reply ($msg->{msgid}, %reply);
960	}	902	}
961	}	903	}
962	} else {	904	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
965		907
966	cf::override;	908	cf::override;
967	},	909	},
968	);	910	);
969		911
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	912	sub load_extension {
977	my ($path) = @_;	913	my ($path) = @_;
978		914
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
980	my $base = $1;	916	my $base = $1;
981	my $pkg = $1;	917	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;	918	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";	919	$pkg = "ext::$pkg";
984		920
985	warn "loading '$path' into '$pkg'\n";	921	warn "... loading '$path' into '$pkg'\n";
986		922
987	open my $fh, "<:utf8", $path	923	open my $fh, "<:utf8", $path
988	or die "$path: $!";	924	or die "$path: $!";
989		925
990	my $source =	926	my $source =
991	"package $pkg; use strict; use utf8;\n"	927	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"	928	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })	929	. (do { local $/; <$fh> })
994	. "\n};\n1";	930	. "\n};\n1";
995		931
996	eval $source	932	unless (eval $source) {
997	or die $@ ? "$path: $@\n"	933	my $msg = $@ ? "$path: $@\n"
998	: "extension disabled.\n";	934	: "extension disabled.\n";
999		935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1000	push @exts, $pkg;	936	warn $@;
1001	$ext_pkg{$base} = $pkg;	937	warn "mandatory extension failed to load, exiting.\n";
1002		938	exit 1;
1003	# no strict 'refs';	939	}
1004	# @{"$pkg\::ISA"} = ext::;	940	die $@;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	941	}
1019		942
1020	# remove commands	943	push @EXTS, $pkg;
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}	944	}
1045		945
1046	sub load_extensions {	946	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {	947	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;	948	next unless -r $ext;
…		…
1052	} or warn "$ext not loaded: $@";	952	} or warn "$ext not loaded: $@";
1053	}	953	}
1054	}	954	}
1055		955
1056	#############################################################################	956	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093		957
1094	=head2 CORE EXTENSIONS	958	=head2 CORE EXTENSIONS
1095		959
1096	Functions and methods that extend core crossfire objects.	960	Functions and methods that extend core crossfire objects.
1097		961
		962	=cut
		963
		964	package cf::player;
		965
		966	use Coro::AIO;
		967
1098	=head3 cf::player	968	=head3 cf::player
1099		969
1100	=over 4	970	=over 4
1101		971
1102	=item cf::player::exists $login	972	=item cf::player::find $login
1103		973
1104	Returns true when the given account exists.	974	Returns the given player object, loading it if necessary (might block).
1105		975
1106	=cut	976	=cut
1107		977
1108	sub cf::player::exists($) {	978	sub playerdir($) {
1109	cf::player::find $_[0]	979	"$PLAYERDIR/"
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	980	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	981	}
1112		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
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1154	=item $player->ext_reply ($msgid, %msg)
1114		1155
1115	Sends an ext reply to the player.	1156	Sends an ext reply to the player.
1116		1157
1117	=cut	1158	=cut
1118		1159
1119	sub cf::player::ext_reply($$$%) {	1160	sub ext_reply($$%) {
1120	my ($self, $id, %msg) = @_;	1161	my ($self, $id, %msg) = @_;
1121		1162
1122	$msg{msgid} = $id;	1163	$msg{msgid} = $id;
1123		1164
1124	$self->send ("ext " . to_json \%msg);	1165	$self->send ("ext " . cf::to_json \%msg);
		1166	}
		1167
		1168	=item $player->ext_event ($type, %msg)
		1169
		1170	Sends an ext event to the client.
		1171
		1172	=cut
		1173
		1174	sub ext_event($$%) {
		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
1125	}	1207	}
1126		1208
1127	=back	1209	=back
1128
1129		1210
1130	=head3 cf::map	1211	=head3 cf::map
1131		1212
1132	=over 4	1213	=over 4
1133		1214
…		…
1136	package cf::map;	1217	package cf::map;
1137		1218
1138	use Fcntl;	1219	use Fcntl;
1139	use Coro::AIO;	1220	use Coro::AIO;
1140		1221
		1222	use overload
		1223	'""' => \&as_string,
		1224	fallback => 1;
		1225
1141	our $MAX_RESET = 7200;	1226	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1227	our $DEFAULT_RESET = 3000;
1143		1228
1144	sub generate_random_map {	1229	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1230	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1231	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1232	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1236	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1237	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1240	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$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},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1242	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(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"
1161	}	1374	}
1162		1375
1163	# and all this just because we cannot iterate over	1376	# and all this just because we cannot iterate over
1164	# all maps in C++...	1377	# all maps in C++...
1165	sub change_all_map_light {	1378	sub change_all_map_light {
…		…
1167		1380
1168	$_->change_map_light ($change)	1381	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1382	for grep $_->outdoor, values %cf::MAP;
1170	}	1383	}
1171		1384
		1385	sub unlink_save {
		1386	my ($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
1172	sub try_load_header($) {	1393	sub load_header_from($) {
1173	my ($path) = @_;	1394	my ($self, $path) = @_;
1174		1395
1175	utf8::encode $path;	1396	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1397	#aio_open $path, O_RDONLY, 0
		1398	# or return;
		1399
		1400	$self->_load_header ($path)
1177	or return;	1401	or return;
1178		1402
1179	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
1180	or return;	1446	or return;
		1447	$self->prepare_orig;
		1448	}
1181		1449
1182	$map->load_header ($path)	1450	$self->default_region (cf::region::find_by_path $self->{path})
1183	or return;	1451	unless $self->default_region;
1184		1452
1185	$map->{load_path} = $path;	1453	1
1186
1187	$map
1188	}	1454	}
1189		1455
1190	sub find_map;	1456	sub find;
1191	sub find_map {	1457	sub find {
1192	my ($path, $origin) = @_;	1458	my ($path, $origin) = @_;
1193		1459
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1460	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1461
1199	cf::lock_wait "map_find:$key";	1462	cf::lock_wait "map_find:$path";
1200		1463
1201	$cf::MAP{$key} || do {	1464	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1465	my $guard = cf::lock_acquire "map_find:$path";
1203		1466	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	$map->last_access ((delete $map->{last_access})
1209	|| $cf::RUNTIME); #d#
1210	# safety
1211	$map->{instantiate_time} = $cf::RUNTIME
1212	if $map->{instantiate_time} > $cf::RUNTIME;
1213	} else {
1214	if (my $rmp = $path->random_map_params) {
1215	$map = generate_random_map $key, $rmp;
1216	} else {
1217	$map = try_load_header $path->load_path;
1218	}
1219
1220	$map or return;	1467	or return;
1221		1468
1222	$map->{load_original} = 1;
1223	$map->{instantiate_time} = $cf::RUNTIME;
1224	$map->last_access ($cf::RUNTIME);
1225	$map->instantiate;
1226
1227	# per-player maps become, after loading, normal maps
1228	$map->per_player (0) if $path->{user_rel};
1229	}
1230
1231	$map->path ($key);
1232	$map->{path} = $path;
1233	$map->{last_save} = $cf::RUNTIME;	1469	$map->{last_save} = $cf::RUNTIME;
1234		1470
1235	if ($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;
1236	$map->reset;	1477	$map->reset;
1237	undef $guard;	1478	undef $guard;
1238	$map = find_map $path	1479	return find $path;
1239	or return;
1240	}	1480	}
1241		1481
1242	$cf::MAP{$key} = $map	1482	$cf::MAP{$path} = $map
1243	}	1483	}
1244	}	1484	}
		1485
		1486	sub pre_load { }
		1487	sub post_load { }
1245		1488
1246	sub load {	1489	sub load {
1247	my ($self) = @_;	1490	my ($self) = @_;
1248		1491
		1492	local $self->{deny_reset} = 1; # loading can take a long time
		1493
1249	my $path = $self->{path};	1494	my $path = $self->{path};
		1495
		1496	{
1250	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1497	my $guard = cf::lock_acquire "map_load:$path";
1251		1498
1252	return if $self->in_memory != cf::MAP_SWAPPED;	1499	return if $self->in_memory != cf::MAP_SWAPPED;
1253		1500
1254	$self->in_memory (cf::MAP_LOADING);	1501	$self->in_memory (cf::MAP_LOADING);
1255		1502
1256	$self->alloc;	1503	$self->alloc;
		1504
		1505	$self->pre_load;
		1506	Coro::cede;
		1507
1257	$self->load_objects ($self->{load_path}, 1)	1508	$self->_load_objects ($self->{load_path}, 1)
1258	or return;	1509	or return;
1259		1510
1260	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1261	if delete $self->{load_original};	1512	if delete $self->{load_original};
1262		1513
1263	if (my $uniq = $path->uniq_path) {	1514	if (my $uniq = $self->uniq_path) {
1264	utf8::encode $uniq;	1515	utf8::encode $uniq;
1265	if (aio_open $uniq, O_RDONLY, 0) {	1516	if (aio_open $uniq, O_RDONLY, 0) {
1266	$self->clear_unique_items;	1517	$self->clear_unique_items;
1267	$self->load_objects ($uniq, 0);	1518	$self->_load_objects ($uniq, 0);
1268	}	1519	}
1269	}	1520	}
1270		1521
		1522	Coro::cede;
1271	# now do the right thing for maps	1523	# now do the right thing for maps
1272	$self->link_multipart_objects;	1524	$self->link_multipart_objects;
1273
1274	if ($self->{path}->is_style_map) {
1275	$self->{deny_save} = 1;
1276	$self->{deny_reset} = 1;
1277	} else {
1278	$self->fix_auto_apply;
1279	$self->decay_objects;
1280	$self->update_buttons;
1281	$self->set_darkness_map;
1282	$self->difficulty ($self->estimate_difficulty)	1525	$self->difficulty ($self->estimate_difficulty)
1283	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;
1284	$self->activate;	1536	$self->activate;
1285	}	1537	}
1286		1538
1287	$self->in_memory (cf::MAP_IN_MEMORY);	1539	$self->in_memory (cf::MAP_IN_MEMORY);
1288	}
1289		1540
1290	sub load_map_sync {	1541	undef $guard;
		1542	}
		1543
		1544	$self->post_load;
		1545	}
		1546
		1547	sub customise_for {
		1548	my ($self, $ob) = @_;
		1549
		1550	return find "~" . $ob->name . "/" . $self->{path}
		1551	if $self->per_player;
		1552
		1553	$self
		1554	}
		1555
		1556	# find and load all maps in the 3x3 area around a map
		1557	sub load_diag {
		1558	my ($map) = @_;
		1559
		1560	my @diag; # diagonal neighbours
		1561
		1562	for (0 .. 3) {
		1563	my $neigh = $map->tile_path ($_)
		1564	or next;
		1565	$neigh = find $neigh, $map
		1566	or next;
		1567	$neigh->load;
		1568
		1569	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1570	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1571	}
		1572
		1573	for (@diag) {
		1574	my $neigh = find @$_
		1575	or next;
		1576	$neigh->load;
		1577	}
		1578	}
		1579
		1580	sub find_sync {
1291	my ($path, $origin) = @_;	1581	my ($path, $origin) = @_;
1292		1582
1293	#warn "load_map_sync<$path, $origin>\n";#d#	1583	cf::sync_job { find $path, $origin }
		1584	}
1294		1585
1295	cf::sync_job {	1586	sub do_load_sync {
1296	my $map = cf::map::find_map $path, $origin	1587	my ($map) = @_;
1297	or return;	1588
		1589	cf::sync_job { $map->load };
		1590	}
		1591
		1592	our %MAP_PREFETCH;
		1593	our $MAP_PREFETCHER = undef;
		1594
		1595	sub find_async {
		1596	my ($path, $origin) = @_;
		1597
		1598	$path = normalise $path, $origin && $origin->{path};
		1599
		1600	if (my $map = $cf::MAP{$path}) {
		1601	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1602	}
		1603
		1604	undef $MAP_PREFETCH{$path};
		1605	$MAP_PREFETCHER ||= cf::async {
		1606	while (%MAP_PREFETCH) {
		1607	for my $path (keys %MAP_PREFETCH) {
		1608	my $map = find $path
		1609	or next;
1298	$map->load;	1610	$map->load;
1299	$map	1611
		1612	delete $MAP_PREFETCH{$path};
		1613	}
		1614	}
		1615	undef $MAP_PREFETCHER;
1300	}	1616	};
		1617	$MAP_PREFETCHER->prio (6);
		1618
		1619	()
1301	}	1620	}
1302		1621
1303	sub save {	1622	sub save {
1304	my ($self) = @_;	1623	my ($self) = @_;
1305		1624
		1625	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1626
1306	$self->{last_save} = $cf::RUNTIME;	1627	$self->{last_save} = $cf::RUNTIME;
1307		1628
1308	return unless $self->dirty;	1629	return unless $self->dirty;
1309		1630
1310	my $save = $self->{path}->save_path; utf8::encode $save;	1631	my $save = $self->save_path; utf8::encode $save;
1311	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1632	my $uniq = $self->uniq_path; utf8::encode $uniq;
1312		1633
1313	$self->{load_path} = $save;	1634	$self->{load_path} = $save;
1314		1635
1315	return if $self->{deny_save};	1636	return if $self->{deny_save};
1316		1637
1317	local $self->{last_access} = $self->last_access;#d#	1638	local $self->{last_access} = $self->last_access;#d#
1318		1639
		1640	cf::async {
		1641	$_->contr->save for $self->players;
		1642	};
		1643
1319	if ($uniq) {	1644	if ($uniq) {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1645	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1321	$self->save_objects ($uniq, cf::IO_UNIQUES);	1646	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1322	} else {	1647	} else {
1323	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1648	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1324	}	1649	}
1325	}	1650	}
1326		1651
1327	sub swap_out {	1652	sub swap_out {
1328	my ($self) = @_;	1653	my ($self) = @_;
1329		1654
1330	# save first because save cedes	1655	# save first because save cedes
1331	$self->save;	1656	$self->save;
		1657
		1658	my $lock = cf::lock_acquire "map_data:" . $self->path;
1332		1659
1333	return if $self->players;	1660	return if $self->players;
1334	return if $self->in_memory != cf::MAP_IN_MEMORY;	1661	return if $self->in_memory != cf::MAP_IN_MEMORY;
1335	return if $self->{deny_save};	1662	return if $self->{deny_save};
1336		1663
…		…
1340		1667
1341	sub reset_at {	1668	sub reset_at {
1342	my ($self) = @_;	1669	my ($self) = @_;
1343		1670
1344	# TODO: safety, remove and allow resettable per-player maps	1671	# TODO: safety, remove and allow resettable per-player maps
1345	return 1e99 if $self->{path}{user_rel};	1672	return 1e99 if $self->isa ("ext::map_per_player");#d#
1346	return 1e99 if $self->{deny_reset};	1673	return 1e99 if $self->{deny_reset};
1347		1674
1348	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1675	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1349	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1676	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1350		1677
…		…
1355	my ($self) = @_;	1682	my ($self) = @_;
1356		1683
1357	$self->reset_at <= $cf::RUNTIME	1684	$self->reset_at <= $cf::RUNTIME
1358	}	1685	}
1359		1686
1360	sub unlink_save {
1361	my ($self) = @_;
1362
1363	utf8::encode (my $save = $self->{path}->save_path);
1364	aioreq_pri 3; IO::AIO::aio_unlink $save;
1365	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1366	}
1367
1368	sub rename {
1369	my ($self, $new_path) = @_;
1370
1371	$self->unlink_save;
1372
1373	delete $cf::MAP{$self->path};
1374	$self->{path} = new cf::path $new_path;
1375	$self->path ($self->{path}->as_string);
1376	$cf::MAP{$self->path} = $self;
1377
1378	$self->save;
1379	}
1380
1381	sub reset {	1687	sub reset {
1382	my ($self) = @_;	1688	my ($self) = @_;
1383		1689
		1690	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1691
1384	return if $self->players;	1692	return if $self->players;
1385	return if $self->{path}{user_rel};#d#	1693	return if $self->isa ("ext::map_per_player");#d#
1386		1694
1387	warn "resetting map ", $self->path;#d#	1695	warn "resetting map ", $self->path;#d#
1388		1696
		1697	$self->in_memory (cf::MAP_SWAPPED);
		1698
		1699	# need to save uniques path
		1700	unless ($self->{deny_save}) {
		1701	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1702
		1703	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1704	if $uniq;
		1705	}
		1706
1389	delete $cf::MAP{$self->path};	1707	delete $cf::MAP{$self->path};
		1708
		1709	$self->clear;
1390		1710
1391	$_->clear_links_to ($self) for values %cf::MAP;	1711	$_->clear_links_to ($self) for values %cf::MAP;
1392		1712
1393	$self->unlink_save;	1713	$self->unlink_save;
1394	$self->destroy;	1714	$self->destroy;
…		…
1397	my $nuke_counter = "aaaa";	1717	my $nuke_counter = "aaaa";
1398		1718
1399	sub nuke {	1719	sub nuke {
1400	my ($self) = @_;	1720	my ($self) = @_;
1401		1721
		1722	delete $cf::MAP{$self->path};
		1723
		1724	$self->unlink_save;
		1725
		1726	bless $self, "cf::map";
		1727	delete $self->{deny_reset};
1402	$self->{deny_save} = 1;	1728	$self->{deny_save} = 1;
1403	$self->reset_timeout (1);	1729	$self->reset_timeout (1);
1404	$self->rename ("{nuke}/" . ($nuke_counter++));	1730	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1731
		1732	$cf::MAP{$self->path} = $self;
		1733
1405	$self->reset; # polite request, might not happen	1734	$self->reset; # polite request, might not happen
1406	}	1735	}
1407		1736
1408	sub customise_for {	1737	=item cf::map::unique_maps
1409	my ($map, $ob) = @_;
1410		1738
1411	if ($map->per_player) {	1739	Returns an arrayref of paths of all shared maps that have
1412	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1740	instantiated unique items. May block.
1413	}
1414		1741
1415	$map	1742	=cut
1416	}
1417		1743
1418	sub emergency_save {	1744	sub unique_maps() {
1419	local $cf::FREEZE = 1;	1745	my $files = aio_readdir $UNIQUEDIR
		1746	or return;
1420		1747
1421	warn "enter emergency map save\n";	1748	my @paths;
1422		1749
1423	cf::sync_job {	1750	for (@$files) {
1424	warn "begin emergency map save\n";	1751	utf8::decode $_;
1425	$_->save for values %cf::MAP;	1752	next if /\.pst$/;
		1753	next unless /^$PATH_SEP/o;
		1754
		1755	push @paths, cf::map::normalise $_;
1426	};	1756	}
1427		1757
1428	warn "end emergency map save\n";	1758	\@paths
1429	}	1759	}
1430		1760
1431	package cf;	1761	package cf;
1432		1762
1433	=back	1763	=back
1434		1764
		1765	=head3 cf::object
		1766
		1767	=cut
		1768
		1769	package cf::object;
		1770
		1771	=over 4
		1772
		1773	=item $ob->inv_recursive
		1774
		1775	Returns the inventory of the object _and_ their inventories, recursively.
		1776
		1777	=cut
		1778
		1779	sub inv_recursive_;
		1780	sub inv_recursive_ {
		1781	map { $_, inv_recursive_ $_->inv } @_
		1782	}
		1783
		1784	sub inv_recursive {
		1785	inv_recursive_ inv $_[0]
		1786	}
		1787
		1788	package cf;
		1789
		1790	=back
1435		1791
1436	=head3 cf::object::player	1792	=head3 cf::object::player
1437		1793
1438	=over 4	1794	=over 4
1439		1795
…		…
1479		1835
1480	=item $player_object->enter_link	1836	=item $player_object->enter_link
1481		1837
1482	Freezes the player and moves him/her to a special map (C<{link}>).	1838	Freezes the player and moves him/her to a special map (C<{link}>).
1483		1839
1484	The player should be reaosnably safe there for short amounts of time. You	1840	The player should be reasonably safe there for short amounts of time. You
1485	I<MUST> call C<leave_link> as soon as possible, though.	1841	I<MUST> call C<leave_link> as soon as possible, though.
1486		1842
		1843	Will never block.
		1844
1487	=item $player_object->leave_link ($map, $x, $y)	1845	=item $player_object->leave_link ($map, $x, $y)
1488		1846
1489	Moves the player out of the specila link map onto the given map. If the	1847	Moves the player out of the special C<{link}> map onto the specified
1490	map is not valid (or omitted), the player will be moved back to the	1848	map. If the map is not valid (or omitted), the player will be moved back
1491	location he/she was before the call to C<enter_link>, or, if that fails,	1849	to the location he/she was before the call to C<enter_link>, or, if that
1492	to the emergency map position.	1850	fails, to the emergency map position.
1493		1851
1494	Might block.	1852	Might block.
1495		1853
1496	=cut	1854	=cut
		1855
		1856	sub link_map {
		1857	unless ($LINK_MAP) {
		1858	$LINK_MAP = cf::map::find "{link}"
		1859	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1860	$LINK_MAP->load;
		1861	}
		1862
		1863	$LINK_MAP
		1864	}
1497		1865
1498	sub cf::object::player::enter_link {	1866	sub cf::object::player::enter_link {
1499	my ($self) = @_;	1867	my ($self) = @_;
1500		1868
1501	$self->deactivate_recursive;	1869	$self->deactivate_recursive;
1502		1870
1503	return if $self->map == $LINK_MAP;	1871	return if UNIVERSAL::isa $self->map, "ext::map_link";
1504		1872
1505	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1873	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1506	if $self->map;	1874	if $self->map;
1507		1875
1508	$self->enter_map ($LINK_MAP, 20, 20);	1876	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1509	}	1877	}
1510		1878
1511	sub cf::object::player::leave_link {	1879	sub cf::object::player::leave_link {
1512	my ($self, $map, $x, $y) = @_;	1880	my ($self, $map, $x, $y) = @_;
1513		1881
1514	my $link_pos = delete $self->{_link_pos};	1882	my $link_pos = delete $self->{_link_pos};
1515		1883
1516	unless ($map) {	1884	unless ($map) {
1517	# restore original map position	1885	# restore original map position
1518	($map, $x, $y) = @{ $link_pos || [] };	1886	($map, $x, $y) = @{ $link_pos || [] };
1519	$map = cf::map::find_map $map;	1887	$map = cf::map::find $map;
1520		1888
1521	unless ($map) {	1889	unless ($map) {
1522	($map, $x, $y) = @$EMERGENCY_POSITION;	1890	($map, $x, $y) = @$EMERGENCY_POSITION;
1523	$map = cf::map::find_map $map	1891	$map = cf::map::find $map
1524	or die "FATAL: cannot load emergency map\n";	1892	or die "FATAL: cannot load emergency map\n";
1525	}	1893	}
1526	}	1894	}
1527		1895
1528	($x, $y) = (-1, -1)	1896	($x, $y) = (-1, -1)
…		…
1531	# use -1 or undef as default coordinates, not 0, 0	1899	# use -1 or undef as default coordinates, not 0, 0
1532	($x, $y) = ($map->enter_x, $map->enter_y)	1900	($x, $y) = ($map->enter_x, $map->enter_y)
1533	if $x <=0 && $y <= 0;	1901	if $x <=0 && $y <= 0;
1534		1902
1535	$map->load;	1903	$map->load;
		1904	$map->load_diag;
1536		1905
		1906	return unless $self->contr->active;
1537	$self->activate_recursive;	1907	$self->activate_recursive;
		1908
		1909	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1538	$self->enter_map ($map, $x, $y);	1910	$self->enter_map ($map, $x, $y);
1539	}	1911	}
1540		1912
1541	cf::player->attach (	1913	cf::player->attach (
1542	on_logout => sub {	1914	on_logout => sub {
…		…
1554		1926
1555	# try to abort aborted map switching on player login :)	1927	# try to abort aborted map switching on player login :)
1556	# should happen only on crashes	1928	# should happen only on crashes
1557	if ($pl->ob->{_link_pos}) {	1929	if ($pl->ob->{_link_pos}) {
1558	$pl->ob->enter_link;	1930	$pl->ob->enter_link;
1559	cf::async {	1931	(async {
		1932	$pl->ob->reply (undef,
		1933	"There was an internal problem at your last logout, "
		1934	. "the server will try to bring you to your intended destination in a second.",
		1935	cf::NDI_RED);
1560	# we need this sleep as the login has a concurrent enter_exit running	1936	# we need this sleep as the login has a concurrent enter_exit running
1561	# and this sleep increases chances of the player not ending up in scorn	1937	# and this sleep increases chances of the player not ending up in scorn
1562	Coro::Timer::sleep 1;	1938	Coro::Timer::sleep 1;
1563	$pl->ob->leave_link;	1939	$pl->ob->leave_link;
1564	};	1940	})->prio (2);
1565	}	1941	}
1566	},	1942	},
1567	);	1943	);
1568		1944
1569	=item $player_object->goto_map ($path, $x, $y)	1945	=item $player_object->goto ($path, $x, $y)
1570		1946
1571	=cut	1947	=cut
1572		1948
1573	sub cf::object::player::goto_map {	1949	sub cf::object::player::goto {
1574	my ($self, $path, $x, $y) = @_;	1950	my ($self, $path, $x, $y) = @_;
1575		1951
1576	$self->enter_link;	1952	$self->enter_link;
1577		1953
1578	(cf::async {	1954	(async {
1579	$path = new cf::path $path;	1955	my $map = eval {
1580
1581	my $map = cf::map::find_map $path->as_string;	1956	my $map = cf::map::find $path;
1582	$map = $map->customise_for ($self) if $map;	1957	$map = $map->customise_for ($self) if $map;
1583		1958	$map
1584	# warn "entering ", $map->path, " at ($x, $y)\n"	1959	} or
1585	# if $map;
1586
1587	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1960	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1588		1961
1589	$self->leave_link ($map, $x, $y);	1962	$self->leave_link ($map, $x, $y);
1590	})->prio (1);	1963	})->prio (1);
1591	}	1964	}
1592		1965
…		…
1596		1969
1597	sub parse_random_map_params {	1970	sub parse_random_map_params {
1598	my ($spec) = @_;	1971	my ($spec) = @_;
1599		1972
1600	my $rmp = { # defaults	1973	my $rmp = { # defaults
1601	xsize => 10,	1974	xsize => (cf::rndm 15, 40),
1602	ysize => 10,	1975	ysize => (cf::rndm 15, 40),
		1976	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1977	#layout => string,
1603	};	1978	};
1604		1979
1605	for (split /\n/, $spec) {	1980	for (split /\n/, $spec) {
1606	my ($k, $v) = split /\s+/, $_, 2;	1981	my ($k, $v) = split /\s+/, $_, 2;
1607		1982
…		…
1611	$rmp	1986	$rmp
1612	}	1987	}
1613		1988
1614	sub prepare_random_map {	1989	sub prepare_random_map {
1615	my ($exit) = @_;	1990	my ($exit) = @_;
		1991
		1992	my $guard = cf::lock_acquire "exit_prepare:$exit";
1616		1993
1617	# all this does is basically replace the /! path by	1994	# all this does is basically replace the /! path by
1618	# a new random map path (?random/...) with a seed	1995	# a new random map path (?random/...) with a seed
1619	# that depends on the exit object	1996	# that depends on the exit object
1620		1997
1621	my $rmp = parse_random_map_params $exit->msg;	1998	my $rmp = parse_random_map_params $exit->msg;
1622		1999
1623	if ($exit->map) {	2000	if ($exit->map) {
1624	$rmp->{region} = $exit->map->region_name;	2001	$rmp->{region} = $exit->region->name;
1625	$rmp->{origin_map} = $exit->map->path;	2002	$rmp->{origin_map} = $exit->map->path;
1626	$rmp->{origin_x} = $exit->x;	2003	$rmp->{origin_x} = $exit->x;
1627	$rmp->{origin_y} = $exit->y;	2004	$rmp->{origin_y} = $exit->y;
1628	}	2005	}
1629		2006
1630	$rmp->{random_seed} ||= $exit->random_seed;	2007	$rmp->{random_seed} ||= $exit->random_seed;
1631		2008
1632	my $data = cf::to_json $rmp;	2009	my $data = cf::to_json $rmp;
1633	my $md5 = Digest::MD5::md5_hex $data;	2010	my $md5 = Digest::MD5::md5_hex $data;
		2011	my $meta = "$RANDOMDIR/$md5.meta";
1634		2012
1635	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2013	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1636	aio_write $fh, 0, (length $data), $data, 0;	2014	aio_write $fh, 0, (length $data), $data, 0;
		2015	undef $fh;
		2016	aio_rename "$meta~", $meta;
1637		2017
1638	$exit->slaying ("?random/$md5");	2018	$exit->slaying ("?random/$md5");
1639	$exit->msg (undef);	2019	$exit->msg (undef);
1640	}	2020	}
1641	}	2021	}
…		…
1643	sub cf::object::player::enter_exit {	2023	sub cf::object::player::enter_exit {
1644	my ($self, $exit) = @_;	2024	my ($self, $exit) = @_;
1645		2025
1646	return unless $self->type == cf::PLAYER;	2026	return unless $self->type == cf::PLAYER;
1647		2027
		2028	if ($exit->slaying eq "/!") {
		2029	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2030	# the problem is that $exit might not survive long enough
		2031	# so it needs to be done right now, right here
		2032	cf::sync_job { prepare_random_map $exit };
		2033	}
		2034
		2035	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2036	my $hp = $exit->stats->hp;
		2037	my $sp = $exit->stats->sp;
		2038
1648	$self->enter_link;	2039	$self->enter_link;
1649		2040
1650	(cf::async {	2041	(async {
		2042	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2043	unless (eval {
1652	prepare_random_map $exit	2044	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1657		2045
1658	1;	2046	1;
1659	}) {	2047	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2048	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "I'll try to bring you back to the map you were before. "	2049	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2050	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2051	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2052
1665	warn "ERROR in enter_exit: $@";	2053	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2054	$self->leave_link;
1667	}	2055	}
1668	})->prio (1);	2056	})->prio (1);
…		…
1681		2069
1682	sub cf::client::send_drawinfo {	2070	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2071	my ($self, $text, $flags) = @_;
1684		2072
1685	utf8::encode $text;	2073	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2074	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2075	}
1688		2076
		2077	=item $client->ext_event ($type, %msg)
		2078
		2079	Sends an exti event to the client.
		2080
		2081	=cut
		2082
		2083	sub cf::client::ext_event($$%) {
		2084	my ($self, $type, %msg) = @_;
		2085
		2086	$msg{msgtype} = "event_$type";
		2087	$self->send_packet ("ext " . cf::to_json \%msg);
		2088	}
1689		2089
1690	=item $success = $client->query ($flags, "text", \&cb)	2090	=item $success = $client->query ($flags, "text", \&cb)
1691		2091
1692	Queues a query to the client, calling the given callback with	2092	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2093	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1722	# get handled first	2122	# get handled first
1723	my $queue = delete $ns->{query_queue}	2123	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	2124	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		2125
1726	(shift @$queue)->[1]->($msg);	2126	(shift @$queue)->[1]->($msg);
		2127	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2128
1728	push @{ $ns->{query_queue} }, @$queue;	2129	push @{ $ns->{query_queue} }, @$queue;
1729		2130
1730	if (@{ $ns->{query_queue} } == @$queue) {	2131	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2132	if (@$queue) {
…		…
1735	}	2136	}
1736	}	2137	}
1737	},	2138	},
1738	);	2139	);
1739		2140
1740	=item $client->coro (\&cb)	2141	=item $client->async (\&cb)
1741		2142
1742	Create a new coroutine, running the specified callback. The coroutine will	2143	Create a new coroutine, running the specified callback. The coroutine will
1743	be automatically cancelled when the client gets destroyed (e.g. on logout,	2144	be automatically cancelled when the client gets destroyed (e.g. on logout,
1744	or loss of connection).	2145	or loss of connection).
1745		2146
1746	=cut	2147	=cut
1747		2148
1748	sub cf::client::coro {	2149	sub cf::client::async {
1749	my ($self, $cb) = @_;	2150	my ($self, $cb) = @_;
1750		2151
1751	my $coro = &cf::async ($cb);	2152	my $coro = &Coro::async ($cb);
1752		2153
1753	$coro->on_destroy (sub {	2154	$coro->on_destroy (sub {
1754	delete $self->{_coro}{$coro+0};	2155	delete $self->{_coro}{$coro+0};
1755	});	2156	});
1756		2157
…		…
1789		2190
1790	# here we export the classes and methods available to script code	2191	# here we export the classes and methods available to script code
1791		2192
1792	=pod	2193	=pod
1793		2194
1794	The following fucntions and emthods are available within a safe environment:	2195	The following functions and methods are available within a safe environment:
1795		2196
1796	cf::object contr pay_amount pay_player map	2197	cf::object contr pay_amount pay_player map
1797	cf::object::player player	2198	cf::object::player player
1798	cf::player peaceful	2199	cf::player peaceful
1799	cf::map trigger	2200	cf::map trigger
…		…
1884	#############################################################################	2285	#############################################################################
1885		2286
1886	=head2 EXTENSION DATABASE SUPPORT	2287	=head2 EXTENSION DATABASE SUPPORT
1887		2288
1888	Crossfire maintains a very simple database for extension use. It can	2289	Crossfire maintains a very simple database for extension use. It can
1889	currently store anything that can be serialised using Storable, which	2290	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1890	excludes objects.	2291	convert to/from binary).
1891		2292
1892	The parameter C<$family> should best start with the name of the extension	2293	The parameter C<$family> should best start with the name of the extension
1893	using it, it should be unique.	2294	using it, it should be unique.
1894		2295
1895	=over 4	2296	=over 4
1896		2297
1897	=item $hashref = cf::db_get $family
1898
1899	Return a hashref for use by the extension C<$family>, which can be
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902
1903	=item $value = cf::db_get $family => $key	2298	=item $value = cf::db_get $family => $key
1904		2299
1905	Returns a single value from the database	2300	Returns a single value from the database.
1906
1907	=item cf::db_put $family => $hashref
1908
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911		2301
1912	=item cf::db_put $family => $key => $value	2302	=item cf::db_put $family => $key => $value
1913		2303
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you	2304	Stores the given C<$value> in the family.
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924		2305
1925	=cut	2306	=cut
1926		2307
1927	our $DB;	2308	our $DB;
1928		2309
1929	{	2310	sub db_init {
1930	my $path = cf::localdir . "/database.pst";	2311	unless ($DB) {
		2312	$DB = BDB::db_create $DB_ENV;
1931		2313
1932	sub db_load() {	2314	cf::sync_job {
1933	$DB = stat $path ? Storable::retrieve $path : { };	2315	eval {
1934	}	2316	$DB->set_flags (BDB::CHKSUM);
1935		2317
1936	my $pid;	2318	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1937		2319	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1938	sub db_save() {	2320	cf::cleanup "db_open(db): $!" if $!;
1939	waitpid $pid, 0 if $pid;	2321	};
1940	if (0 == ($pid = fork)) {	2322	cf::cleanup "db_open(db): $@" if $@;
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}	2323	};
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	2324	}
		2325	}
1958		2326
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}
1963
1964	sub db_get($;$) {	2327	sub db_get($$) {
1965	@_ >= 2	2328	my $key = "$_[0]/$_[1]";
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969		2329
		2330	cf::sync_job {
		2331	BDB::db_get $DB, undef, $key, my $data;
		2332
		2333	$! ? ()
		2334	: $data
		2335	}
		2336	}
		2337
1970	sub db_put($$;$) {	2338	sub db_put($$$) {
1971	if (@_ >= 3) {	2339	BDB::dbreq_pri 4;
1972	$DB->{$_[0]}{$_[1]} = $_[2];	2340	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1973	} else {	2341	}
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978		2342
1979	cf::global->attach (	2343	=item cf::cache $id => [$paths...], $processversion => $process
1980	prio => 10000,	2344
1981	on_cleanup => sub {	2345	Generic caching function that returns the value of the resource $id,
1982	db_sync;	2346	caching and regenerating as required.
		2347
		2348	This function can block.
		2349
		2350	=cut
		2351
		2352	sub cache {
		2353	my ($id, $src, $processversion, $process) = @_;
		2354
		2355	my $meta =
		2356	join "\x00",
		2357	$processversion,
		2358	map {
		2359	aio_stat $_
		2360	and Carp::croak "$_: $!";
		2361
		2362	($_, (stat _)[7,9])
		2363	} @$src;
		2364
		2365	my $dbmeta = db_get cache => "$id/meta";
		2366	if ($dbmeta ne $meta) {
		2367	# changed, we may need to process
		2368
		2369	my @data;
		2370	my $md5;
		2371
		2372	for (0 .. $#$src) {
		2373	0 <= aio_load $src->[$_], $data[$_]
		2374	or Carp::croak "$src->[$_]: $!";
1983	},	2375	}
1984	);	2376
		2377	# if processing is expensive, check
		2378	# checksum first
		2379	if (1) {
		2380	$md5 =
		2381	join "\x00",
		2382	$processversion,
		2383	map {
		2384	Coro::cede;
		2385	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2386	} 0.. $#$src;
		2387
		2388
		2389	my $dbmd5 = db_get cache => "$id/md5";
		2390	if ($dbmd5 eq $md5) {
		2391	db_put cache => "$id/meta", $meta;
		2392
		2393	return db_get cache => "$id/data";
		2394	}
		2395	}
		2396
		2397	my $t1 = Time::HiRes::time;
		2398	my $data = $process->(\@data);
		2399	my $t2 = Time::HiRes::time;
		2400
		2401	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2402
		2403	db_put cache => "$id/data", $data;
		2404	db_put cache => "$id/md5" , $md5;
		2405	db_put cache => "$id/meta", $meta;
		2406
		2407	return $data;
		2408	}
		2409
		2410	db_get cache => "$id/data"
1985	}	2411	}
		2412
		2413	=item fork_call { }, $args
		2414
		2415	Executes the given code block with the given arguments in a seperate
		2416	process, returning the results. Everything must be serialisable with
		2417	Coro::Storable. May, of course, block. Note that the executed sub may
		2418	never block itself or use any form of Event handling.
		2419
		2420	=cut
		2421
		2422	sub fork_call(&@) {
		2423	my ($cb, @args) = @_;
		2424
		2425	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2426	# or die "socketpair: $!";
		2427	pipe my $fh1, my $fh2
		2428	or die "pipe: $!";
		2429
		2430	if (my $pid = fork) {
		2431	close $fh2;
		2432
		2433	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2434	$res = Coro::Storable::thaw $res;
		2435
		2436	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2437
		2438	die $$res unless "ARRAY" eq ref $res;
		2439
		2440	return wantarray ? @$res : $res->[-1];
		2441	} else {
		2442	local $SIG{__WARN__};
		2443	eval {
		2444	local $SIG{__DIE__};
		2445	close $fh1;
		2446
		2447	my @res = eval { $cb->(@args) };
		2448	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2449	};
		2450
		2451	warn $@ if $@;
		2452	_exit 0;
		2453	}
		2454	}
		2455
		2456
1986		2457
1987	#############################################################################	2458	#############################################################################
1988	# the server's main()	2459	# the server's init and main functions
		2460
		2461	sub load_facedata($) {
		2462	my ($path) = @_;
		2463
		2464	warn "loading facedata from $path\n";
		2465
		2466	my $facedata;
		2467	0 < aio_load $path, $facedata
		2468	or die "$path: $!";
		2469
		2470	$facedata = Coro::Storable::thaw $facedata;
		2471
		2472	$facedata->{version} == 2
		2473	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2474
		2475	{
		2476	my $faces = $facedata->{faceinfo};
		2477
		2478	while (my ($face, $info) = each %$faces) {
		2479	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2480	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2481	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2482	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2483	Coro::cede;
		2484	}
		2485
		2486	while (my ($face, $info) = each %$faces) {
		2487	next unless $info->{smooth};
		2488	my $idx = cf::face::find $face
		2489	or next;
		2490	if (my $smooth = cf::face::find $info->{smooth}) {
		2491	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2492	} else {
		2493	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2494	}
		2495	Coro::cede;
		2496	}
		2497	}
		2498
		2499	{
		2500	my $anims = $facedata->{animinfo};
		2501
		2502	while (my ($anim, $info) = each %$anims) {
		2503	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2504	Coro::cede;
		2505	}
		2506
		2507	cf::anim::invalidate_all; # d'oh
		2508	}
		2509
		2510	1
		2511	}
		2512
		2513	sub reload_regions {
		2514	load_resource_file "$MAPDIR/regions"
		2515	or die "unable to load regions file\n";
		2516	}
		2517
		2518	sub reload_facedata {
		2519	load_facedata "$DATADIR/facedata"
		2520	or die "unable to load facedata\n";
		2521	}
		2522
		2523	sub reload_archetypes {
		2524	load_resource_file "$DATADIR/archetypes"
		2525	or die "unable to load archetypes\n";
		2526	}
		2527
		2528	sub reload_treasures {
		2529	load_resource_file "$DATADIR/treasures"
		2530	or die "unable to load treasurelists\n";
		2531	}
		2532
		2533	sub reload_resources {
		2534	warn "reloading resource files...\n";
		2535
		2536	reload_regions;
		2537	reload_facedata;
		2538	reload_archetypes;
		2539	reload_treasures;
		2540
		2541	warn "finished reloading resource files\n";
		2542	}
		2543
		2544	sub init {
		2545	reload_resources;
		2546	}
1989		2547
1990	sub cfg_load {	2548	sub cfg_load {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	2549	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	2550	or return;
1993		2551
1994	local $/;	2552	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	2553	*CFG = YAML::Syck::Load <$fh>;
1996		2554
1997	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2555	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1998		2556
		2557	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2558	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2559
1999	if (exists $CFG{mlockall}) {	2560	if (exists $CFG{mlockall}) {
2000	eval {	2561	eval {
2001	$CFG{mlockall} ? &mlockall : &munlockall	2562	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2002	and die "WARNING: m(un)lockall failed: $!\n";	2563	and die "WARNING: m(un)lockall failed: $!\n";
2003	};	2564	};
2004	warn $@ if $@;	2565	warn $@ if $@;
2005	}	2566	}
2006	}	2567	}
2007		2568
2008	sub main {	2569	sub main {
2009	# we must not ever block the main coroutine	2570	# we must not ever block the main coroutine
2010	local $Coro::idle = sub {	2571	local $Coro::idle = sub {
2011	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2572	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2012	(Coro::unblock_sub {	2573	(async {
2013	Event::one_event;	2574	Event::one_event;
2014	})->();	2575	})->prio (Coro::PRIO_MAX);
2015	};	2576	};
2016		2577
2017	cfg_load;	2578	cfg_load;
2018	db_load;	2579	db_init;
2019	load_extensions;	2580	load_extensions;
		2581
		2582	$TICK_WATCHER->start;
2020	Event::loop;	2583	Event::loop;
2021	}	2584	}
2022		2585
2023	#############################################################################	2586	#############################################################################
2024	# initialisation	2587	# initialisation and cleanup
2025		2588
		2589	# install some emergency cleanup handlers
		2590	BEGIN {
		2591	for my $signal (qw(INT HUP TERM)) {
		2592	Event->signal (
		2593	reentrant => 0,
		2594	data => WF_AUTOCANCEL,
		2595	signal => $signal,
		2596	prio => 0,
		2597	cb => sub {
		2598	cf::cleanup "SIG$signal";
		2599	},
		2600	);
		2601	}
		2602	}
		2603
		2604	sub emergency_save() {
		2605	my $freeze_guard = cf::freeze_mainloop;
		2606
		2607	warn "enter emergency perl save\n";
		2608
		2609	cf::sync_job {
		2610	# use a peculiar iteration method to avoid tripping on perl
		2611	# refcount bugs in for. also avoids problems with players
		2612	# and maps saved/destroyed asynchronously.
		2613	warn "begin emergency player save\n";
		2614	for my $login (keys %cf::PLAYER) {
		2615	my $pl = $cf::PLAYER{$login} or next;
		2616	$pl->valid or next;
		2617	$pl->save;
		2618	}
		2619	warn "end emergency player save\n";
		2620
		2621	warn "begin emergency map save\n";
		2622	for my $path (keys %cf::MAP) {
		2623	my $map = $cf::MAP{$path} or next;
		2624	$map->valid or next;
		2625	$map->save;
		2626	}
		2627	warn "end emergency map save\n";
		2628
		2629	warn "begin emergency database checkpoint\n";
		2630	BDB::db_env_txn_checkpoint $DB_ENV;
		2631	warn "end emergency database checkpoint\n";
		2632	};
		2633
		2634	warn "leave emergency perl save\n";
		2635	}
		2636
		2637	sub post_cleanup {
		2638	my ($make_core) = @_;
		2639
		2640	warn Carp::longmess "post_cleanup backtrace"
		2641	if $make_core;
		2642	}
		2643
2026	sub reload() {	2644	sub do_reload_perl() {
2027	# can/must only be called in main	2645	# can/must only be called in main
2028	if ($Coro::current != $Coro::main) {	2646	if ($Coro::current != $Coro::main) {
2029	warn "can only reload from main coroutine\n";	2647	warn "can only reload from main coroutine";
2030	return;	2648	return;
2031	}	2649	}
2032		2650
2033	warn "reloading...";	2651	warn "reloading...";
2034		2652
2035	local $FREEZE = 1;	2653	warn "entering sync_job";
		2654
		2655	cf::sync_job {
		2656	cf::write_runtime; # external watchdog should not bark
2036	cf::emergency_save;	2657	cf::emergency_save;
		2658	cf::write_runtime; # external watchdog should not bark
2037		2659
2038	eval {	2660	warn "syncing database to disk";
		2661	BDB::db_env_txn_checkpoint $DB_ENV;
		2662
2039	# if anything goes wrong in here, we should simply crash as we already saved	2663	# if anything goes wrong in here, we should simply crash as we already saved
2040		2664
2041	# cancel all watchers	2665	warn "cancelling all WF_AUTOCANCEL watchers";
2042	for (Event::all_watchers) {	2666	for (Event::all_watchers) {
2043	$_->cancel if $_->data & WF_AUTOCANCEL;	2667	$_->cancel if $_->data & WF_AUTOCANCEL;
2044	}	2668	}
2045		2669
		2670	warn "flushing outstanding aio requests";
		2671	for (;;) {
		2672	BDB::flush;
		2673	IO::AIO::flush;
		2674	Coro::cede;
		2675	last unless IO::AIO::nreqs || BDB::nreqs;
		2676	warn "iterate...";
		2677	}
		2678
		2679	++$RELOAD;
		2680
2046	# cancel all extension coros	2681	warn "cancelling all extension coros";
2047	$_->cancel for values %EXT_CORO;	2682	$_->cancel for values %EXT_CORO;
2048	%EXT_CORO = ();	2683	%EXT_CORO = ();
2049		2684
2050	# unload all extensions	2685	warn "removing commands";
2051	for (@exts) {	2686	%COMMAND = ();
		2687
		2688	warn "removing ext commands";
		2689	%EXTCMD = ();
		2690
		2691	warn "unloading/nuking all extensions";
		2692	for my $pkg (@EXTS) {
2052	warn "unloading <$_>";	2693	warn "... unloading $pkg";
2053	unload_extension $_;	2694
		2695	if (my $cb = $pkg->can ("unload")) {
		2696	eval {
		2697	$cb->($pkg);
		2698	1
		2699	} or warn "$pkg unloaded, but with errors: $@";
2054	}	2700	}
2055		2701
		2702	warn "... nuking $pkg";
		2703	Symbol::delete_package $pkg;
		2704	}
		2705
2056	# unload all modules loaded from $LIBDIR	2706	warn "unloading all perl modules loaded from $LIBDIR";
2057	while (my ($k, $v) = each %INC) {	2707	while (my ($k, $v) = each %INC) {
2058	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2708	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2059		2709
2060	warn "removing <$k>";	2710	warn "... unloading $k";
2061	delete $INC{$k};	2711	delete $INC{$k};
2062		2712
2063	$k =~ s/\.pm$//;	2713	$k =~ s/\.pm$//;
2064	$k =~ s/\//::/g;	2714	$k =~ s/\//::/g;
2065		2715
…		…
2068	}	2718	}
2069		2719
2070	Symbol::delete_package $k;	2720	Symbol::delete_package $k;
2071	}	2721	}
2072		2722
2073	# sync database to disk
2074	cf::db_sync;
2075	IO::AIO::flush;
2076
2077	# get rid of safe::, as good as possible	2723	warn "getting rid of safe::, as good as possible";
2078	Symbol::delete_package "safe::$_"	2724	Symbol::delete_package "safe::$_"
2079	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2725	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2080		2726
2081	# remove register_script_function callbacks
2082	# TODO
2083
2084	# unload cf.pm "a bit"	2727	warn "unloading cf.pm \"a bit\"";
2085	delete $INC{"cf.pm"};	2728	delete $INC{"cf.pm"};
		2729	delete $INC{"cf/pod.pm"};
2086		2730
2087	# don't, removes xs symbols, too,	2731	# don't, removes xs symbols, too,
2088	# and global variables created in xs	2732	# and global variables created in xs
2089	#Symbol::delete_package __PACKAGE__;	2733	#Symbol::delete_package __PACKAGE__;
2090		2734
2091	# reload cf.pm	2735	warn "unload completed, starting to reload now";
		2736
2092	warn "reloading cf.pm";	2737	warn "reloading cf.pm";
2093	require cf;	2738	require cf;
2094	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2739	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2095		2740
2096	# load config and database again	2741	warn "loading config and database again";
2097	cf::cfg_load;	2742	cf::cfg_load;
2098	cf::db_load;
2099		2743
2100	# load extensions
2101	warn "load extensions";	2744	warn "loading extensions";
2102	cf::load_extensions;	2745	cf::load_extensions;
2103		2746
2104	# reattach attachments to objects	2747	warn "reattaching attachments to objects/players";
2105	warn "reattach";	2748	_global_reattach; # objects, sockets
2106	_global_reattach;	2749	warn "reattaching attachments to maps";
2107	};	2750	reattach $_ for values %MAP;
		2751	warn "reattaching attachments to players";
		2752	reattach $_ for values %PLAYER;
2108		2753
2109	if ($@) {	2754	warn "leaving sync_job";
		2755
		2756	1
		2757	} or do {
2110	warn $@;	2758	warn $@;
2111	warn "error while reloading, exiting.";	2759	warn "error while reloading, exiting.";
2112	exit 1;	2760	exit 1;
2113	}	2761	};
2114		2762
2115	warn "reloaded successfully";	2763	warn "reloaded";
2116	};	2764	};
2117		2765
2118	#############################################################################	2766	our $RELOAD_WATCHER; # used only during reload
2119		2767
2120	unless ($LINK_MAP) {	2768	sub reload_perl() {
2121	$LINK_MAP = cf::map::new;	2769	# doing reload synchronously and two reloads happen back-to-back,
		2770	# coro crashes during coro_state_free->destroy here.
2122		2771
2123	$LINK_MAP->width (41);	2772	$RELOAD_WATCHER ||= Event->timer (
2124	$LINK_MAP->height (41);	2773	reentrant => 0,
2125	$LINK_MAP->alloc;
2126	$LINK_MAP->path ("{link}");
2127	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2128	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2129
2130	# dirty hack because... archetypes are not yet loaded
2131	Event->timer (
2132	after => 2,	2774	after => 0,
		2775	data => WF_AUTOCANCEL,
2133	cb => sub {	2776	cb => sub {
2134	$_[0]->w->cancel;	2777	do_reload_perl;
2135		2778	undef $RELOAD_WATCHER;
2136	# provide some exits "home"
2137	my $exit = cf::object::new "exit";
2138
2139	$exit->slaying ($EMERGENCY_POSITION->[0]);
2140	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2141	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2142
2143	$LINK_MAP->insert ($exit->clone, 19, 19);
2144	$LINK_MAP->insert ($exit->clone, 19, 20);
2145	$LINK_MAP->insert ($exit->clone, 19, 21);
2146	$LINK_MAP->insert ($exit->clone, 20, 19);
2147	$LINK_MAP->insert ($exit->clone, 20, 21);
2148	$LINK_MAP->insert ($exit->clone, 21, 19);
2149	$LINK_MAP->insert ($exit->clone, 21, 20);
2150	$LINK_MAP->insert ($exit->clone, 21, 21);
2151
2152	$exit->destroy;
2153	});	2779	},
2154		2780	);
2155	$LINK_MAP->{deny_save} = 1;
2156	$LINK_MAP->{deny_reset} = 1;
2157
2158	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2159	}	2781	}
2160
2161	register "<global>", __PACKAGE__;
2162		2782
2163	register_command "reload" => sub {	2783	register_command "reload" => sub {
2164	my ($who, $arg) = @_;	2784	my ($who, $arg) = @_;
2165		2785
2166	if ($who->flag (FLAG_WIZ)) {	2786	if ($who->flag (FLAG_WIZ)) {
2167	$who->message ("start of reload.");
2168	reload;
2169	$who->message ("end of reload.");	2787	$who->message ("reloading server.");
		2788	async { reload_perl };
2170	}	2789	}
2171	};	2790	};
2172		2791
2173	unshift @INC, $LIBDIR;	2792	unshift @INC, $LIBDIR;
		2793
		2794	my $bug_warning = 0;
		2795
		2796	our @WAIT_FOR_TICK;
		2797	our @WAIT_FOR_TICK_BEGIN;
		2798
		2799	sub wait_for_tick {
		2800	return unless $TICK_WATCHER->is_active;
		2801	return if $Coro::current == $Coro::main;
		2802
		2803	my $signal = new Coro::Signal;
		2804	push @WAIT_FOR_TICK, $signal;
		2805	$signal->wait;
		2806	}
		2807
		2808	sub wait_for_tick_begin {
		2809	return unless $TICK_WATCHER->is_active;
		2810	return if $Coro::current == $Coro::main;
		2811
		2812	my $signal = new Coro::Signal;
		2813	push @WAIT_FOR_TICK_BEGIN, $signal;
		2814	$signal->wait;
		2815	}
2174		2816
2175	$TICK_WATCHER = Event->timer (	2817	$TICK_WATCHER = Event->timer (
2176	reentrant => 0,	2818	reentrant => 0,
		2819	parked => 1,
2177	prio => 0,	2820	prio => 0,
2178	at => $NEXT_TICK || $TICK,	2821	at => $NEXT_TICK || $TICK,
2179	data => WF_AUTOCANCEL,	2822	data => WF_AUTOCANCEL,
2180	cb => sub {	2823	cb => sub {
2181	unless ($FREEZE) {	2824	if ($Coro::current != $Coro::main) {
		2825	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2826	unless ++$bug_warning > 10;
		2827	return;
		2828	}
		2829
		2830	$NOW = Event::time;
		2831
2182	cf::server_tick; # one server iteration	2832	cf::server_tick; # one server iteration
		2833
2183	$RUNTIME += $TICK;	2834	$RUNTIME += $TICK;
2184	}
2185
2186	$NEXT_TICK += $TICK;	2835	$NEXT_TICK += $TICK;
		2836
		2837	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2838	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2839	Coro::async_pool {
		2840	write_runtime
		2841	or warn "ERROR: unable to write runtime file: $!";
		2842	};
		2843	}
		2844
		2845	# my $AFTER = Event::time;
		2846	# warn $AFTER - $NOW;#d#
2187		2847
2188	# if we are delayed by four ticks or more, skip them all	2848	# if we are delayed by four ticks or more, skip them all
2189	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2849	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2190		2850
2191	$TICK_WATCHER->at ($NEXT_TICK);	2851	$TICK_WATCHER->at ($NEXT_TICK);
2192	$TICK_WATCHER->start;	2852	$TICK_WATCHER->start;
		2853
		2854	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2855	$sig->send;
		2856	}
		2857	while (my $sig = shift @WAIT_FOR_TICK) {
		2858	$sig->send;
		2859	}
		2860
		2861	_post_tick;
2193	},	2862	},
2194	);	2863	);
2195		2864
		2865	{
2196	IO::AIO::max_poll_time $TICK * 0.2;	2866	BDB::max_poll_time $TICK * 0.1;
2197		2867	$BDB_POLL_WATCHER = Event->io (
2198	Event->io (	2868	reentrant => 0,
2199	fd => IO::AIO::poll_fileno,	2869	fd => BDB::poll_fileno,
2200	poll => 'r',	2870	poll => 'r',
2201	prio => 5,	2871	prio => 0,
2202	data => WF_AUTOCANCEL,
2203	cb => \&IO::AIO::poll_cb,
2204	);
2205
2206	Event->timer (
2207	data => WF_AUTOCANCEL,	2872	data => WF_AUTOCANCEL,
2208	after => 0,	2873	cb => \&BDB::poll_cb,
2209	interval => 10,	2874	);
2210	cb => sub {	2875	BDB::min_parallel 8;
2211	(Coro::unblock_sub {	2876
2212	write_runtime	2877	BDB::set_sync_prepare {
2213	or warn "ERROR: unable to write runtime file: $!";	2878	my $status;
		2879	my $current = $Coro::current;
		2880	(
		2881	sub {
		2882	$status = $!;
		2883	$current->ready; undef $current;
		2884	},
		2885	sub {
		2886	Coro::schedule while defined $current;
		2887	$! = $status;
		2888	},
		2889	)
		2890	};
		2891
		2892	unless ($DB_ENV) {
		2893	$DB_ENV = BDB::db_env_create;
		2894
		2895	cf::sync_job {
		2896	eval {
		2897	BDB::db_env_open
		2898	$DB_ENV,
		2899	$BDBDIR,
		2900	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2901	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2902	0666;
		2903
		2904	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2905
		2906	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2907	$DB_ENV->set_lk_detect;
		2908	};
		2909
		2910	cf::cleanup "db_env_open(db): $@" if $@;
2214	})->();	2911	};
2215	},	2912	}
2216	);	2913	}
		2914
		2915	{
		2916	IO::AIO::min_parallel 8;
		2917
		2918	undef $Coro::AIO::WATCHER;
		2919	IO::AIO::max_poll_time $TICK * 0.1;
		2920	$AIO_POLL_WATCHER = Event->io (
		2921	reentrant => 0,
		2922	data => WF_AUTOCANCEL,
		2923	fd => IO::AIO::poll_fileno,
		2924	poll => 'r',
		2925	prio => 6,
		2926	cb => \&IO::AIO::poll_cb,
		2927	);
		2928	}
		2929
		2930	# load additional modules
		2931	use cf::pod;
2217		2932
2218	END { cf::emergency_save }	2933	END { cf::emergency_save }
2219		2934
2220	1	2935	1
2221		2936

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