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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.128 by root, Wed Jan 3 00:28:47 2007 UTC vs.
Revision 1.186 by root, Sat Jan 20 01:12:39 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3 ();	13	use Coro 3.4 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use Data::Dumper;
20	use Digest::MD5;	21	use Digest::MD5;
21	use Fcntl;	22	use Fcntl;
22	use IO::AIO 2.31 ();	23	use IO::AIO 2.32 ();
23	use YAML::Syck ();	24	use YAML::Syck ();
24	use Time::HiRes;	25	use Time::HiRes;
25		26
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
27		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		30
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
30		33
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		35
35	our %COMMAND = ();	36	our %COMMAND = ();
36	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
38		43
39	our @EVENT;	44	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
41		46
42	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
44	our $NEXT_TICK;	51	our $NEXT_TICK;
45	our $NOW;	52	our $NOW;
46		53
47	our %CFG;	54	our %CFG;
48		55
49	our $UPTIME; $UPTIME ||= time;	56	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	57	our $RUNTIME;
51		58
		59	our %PLAYER; # all users
52	our %MAP; # all maps	60	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	61	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	62	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	63
		64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		66
		67	# used to convert map paths into valid unix filenames by replacing / by ∕
		68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		69
58	binmode STDOUT;	70	binmode STDOUT;
59	binmode STDERR;	71	binmode STDERR;
60		72
61	# read virtual server time, if available	73	# read virtual server time, if available
…		…
69	mkdir cf::localdir . "/" . cf::playerdir;	81	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	82	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	83	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	84	mkdir $RANDOM_MAPS;
73		85
74	# a special map that is always available	86	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
78		87
79	#############################################################################	88	#############################################################################
80		89
81	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
82		91
…		…
106		115
107	=item %cf::CFG	116	=item %cf::CFG
108		117
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	119	from wherever your confdir points to.
		120
		121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		122
		123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		125	processing has been done. Call C<< ->wait >> on them to maximise the
		126	window of cpu time available, or simply to synchronise to the server tick.
111		127
112	=back	128	=back
113		129
114	=cut	130	=cut
115		131
…		…
119	utf8::encode $msg;	135	utf8::encode $msg;
120		136
121	$msg .= "\n"	137	$msg .= "\n"
122	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
123		139
124	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
125	};	141	};
126	}	142	}
127		143
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		163
148	$Event::DIED = sub {	164	$Event::DIED = sub {
149	warn "error in event callback: @_";	165	warn "error in event callback: @_";
150	};	166	};
151		167
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
157		169
158	=over 4	170	=over 4
159		171
		172	=item dumpval $ref
		173
160	=cut	174	=cut
		175
		176	sub dumpval {
		177	eval {
		178	local $SIG{__DIE__};
		179	my $d;
		180	if (1) {
		181	$d = new Data::Dumper([$_[0]], ["*var"]);
		182	$d->Terse(1);
		183	$d->Indent(2);
		184	$d->Quotekeys(0);
		185	$d->Useqq(1);
		186	#$d->Bless(...);
		187	$d->Seen($_[1]) if @_ > 1;
		188	$d = $d->Dump();
		189	}
		190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		191	$d
		192	} || "[unable to dump $_[0]: '$@']";
		193	}
161		194
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		196
164	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
165		198
…		…
181	sub to_json($) {	214	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
184	}	217	}
185		218
186	=item my $guard = cf::guard { BLOCK }
187
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207
208	=item cf::lock_wait $string	219	=item cf::lock_wait $string
209		220
210	Wait until the given lock is available. See cf::lock_acquire.	221	Wait until the given lock is available. See cf::lock_acquire.
211		222
212	=item my $lock = cf::lock_acquire $string	223	=item my $lock = cf::lock_acquire $string
213		224
214	Wait until the given lock is available and then acquires it and returns	225	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	227	for example when the coroutine gets canceled), the lock is automatically
217	returned.	228	returned.
218		229
219	Lock names should begin with a unique identifier (for example, find_map	230	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	231	uses map_find and cf::map::load uses map_load).
221		232
222	=cut	233	=cut
223		234
224	our %LOCK;	235	our %LOCK;
225		236
…		…
239	# wait, to be sure we are not locked	250	# wait, to be sure we are not locked
240	lock_wait $key;	251	lock_wait $key;
241		252
242	$LOCK{$key} = [];	253	$LOCK{$key} = [];
243		254
244	cf::guard {	255	Coro::guard {
245	# wake up all waiters, to be on the safe side	256	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	257	$_->ready for @{ delete $LOCK{$key} };
247	}	258	}
248	}	259	}
249		260
		261	sub freeze_mainloop {
		262	return unless $TICK_WATCHER->is_active;
		263
		264	my $guard = Coro::guard {
		265	$TICK_WATCHER->start;
		266	$WRITE_RUNTIME_WATCHER->start;
		267	};
		268	$WRITE_RUNTIME_WATCHER->stop;
		269	$TICK_WATCHER->stop;
		270	$guard
		271	}
		272
250	=item cf::async { BLOCK }	273	=item cf::async { BLOCK }
251		274
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	275	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
254		278
255	=cut	279	=cut
256		280
257	sub async(&) {	281	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		282
266	=item cf::sync_job { BLOCK }	283	=item cf::sync_job { BLOCK }
267		284
268	The design of crossfire+ requires that the main coro ($Coro::main) is	285	The design of crossfire+ requires that the main coro ($Coro::main) is
269	always able to handle events or runnable, as crossfire+ is only partly	286	always able to handle events or runnable, as crossfire+ is only partly
…		…
283	# this is the main coro, too bad, we have to block	300	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	301	# till the operation succeeds, freezing the server :/
285		302
286	# TODO: use suspend/resume instead	303	# TODO: use suspend/resume instead
287	# (but this is cancel-safe)	304	# (but this is cancel-safe)
288	local $FREEZE = 1;	305	my $freeze_guard = freeze_mainloop;
289		306
290	my $busy = 1;	307	my $busy = 1;
291	my @res;	308	my @res;
292		309
293	(Coro::async {	310	(async {
294	@res = eval { $job->() };	311	@res = eval { $job->() };
295	warn $@ if $@;	312	warn $@ if $@;
296	undef $busy;	313	undef $busy;
297	})->prio (Coro::PRIO_MAX);	314	})->prio (Coro::PRIO_MAX);
298		315
299	while ($busy) {	316	while ($busy) {
300	Coro::cede_notself;	317	Coro::cede or Event::one_event;
301	Event::one_event unless Coro::nready;
302	}	318	}
303		319
304	wantarray ? @res : $res[0]	320	wantarray ? @res : $res[0]
305	} else {	321	} else {
306	# we are in another coroutine, how wonderful, everything just works	322	# we are in another coroutine, how wonderful, everything just works
307		323
308	$job->()	324	$job->()
309	}	325	}
310	}	326	}
311		327
312	=item $coro = cf::coro { BLOCK }	328	=item $coro = cf::async_ext { BLOCK }
313		329
314	Creates and returns a new coro. This coro is automcatially being canceled	330	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	331	extension calling this is being unloaded.
316		332
317	=cut	333	=cut
318		334
319	sub coro(&) {	335	sub async_ext(&) {
320	my $cb = shift;	336	my $cb = shift;
321		337
322	my $coro = &cf::async ($cb);	338	my $coro = &Coro::async ($cb);
323		339
324	$coro->on_destroy (sub {	340	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	341	delete $EXT_CORO{$coro+0};
326	});	342	});
327	$EXT_CORO{$coro+0} = $coro;	343	$EXT_CORO{$coro+0} = $coro;
…		…
333	my $runtime = cf::localdir . "/runtime";	349	my $runtime = cf::localdir . "/runtime";
334		350
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336	or return;	352	or return;
337		353
		354	my $value = $cf::RUNTIME + 90 + 10;
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	355	# 10 is the runtime save interval, for a monotonic clock
		356	# 60 allows for the watchdog to kill the server.
		357
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0	358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;	359	and return;
341		360
342	aio_fsync $fh	361	aio_fsync $fh
343	and return;	362	and return;
…		…
352	}	371	}
353		372
354	=back	373	=back
355		374
356	=cut	375	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477		376
478	#############################################################################	377	#############################################################################
479		378
480	=head2 ATTACHABLE OBJECTS	379	=head2 ATTACHABLE OBJECTS
481		380
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	506	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	507	our @CB_MAP = ();
609		508
610	my %attachment;	509	my %attachment;
611		510
		511	sub cf::attachable::thawer_merge {
		512	# simply override everything except _meta
		513	local $_[0]{_meta};
		514	%{$_[0]} = %{$_[1]};
		515	}
		516
612	sub _attach_cb($$$$) {	517	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	518	my ($registry, $event, $prio, $cb) = @_;
614		519
615	use sort 'stable';	520	use sort 'stable';
616		521
…		…
787	# object support	692	# object support
788		693
789	sub reattach {	694	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	695	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	696	my ($obj) = @_;
		697
		698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		699
793	my $registry = $obj->registry;	700	my $registry = $obj->registry;
794		701
795	@$registry = ();	702	@$registry = ();
796		703
…		…
928	=cut	835	=cut
929		836
930	sub register_extcmd {	837	sub register_extcmd {
931	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
932		839
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	840	$EXTCMD{$name} = $cb;
937	}	841	}
938		842
939	cf::player->attach (	843	cf::player->attach (
940	on_command => sub {	844	on_command => sub {
941	my ($pl, $name, $params) = @_;	845	my ($pl, $name, $params) = @_;
…		…
954		858
955	my $msg = eval { from_json $buf };	859	my $msg = eval { from_json $buf };
956		860
957	if (ref $msg) {	861	if (ref $msg) {
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	863	if (my %reply = $cb->($pl, $msg)) {
960	$pl->ext_reply ($msg->{msgid}, %reply);	864	$pl->ext_reply ($msg->{msgid}, %reply);
961	}	865	}
962	}	866	}
963	} else {	867	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
966		870
967	cf::override;	871	cf::override;
968	},	872	},
969	);	873	);
970		874
971	sub register {
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	sub load_extension {	875	sub load_extension {
978	my ($path) = @_;	876	my ($path) = @_;
979		877
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
981	my $base = $1;	879	my $base = $1;
982	my $pkg = $1;	880	my $pkg = $1;
983	$pkg =~ s/[^[:word:]]/_/g;	881	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";	882	$pkg = "ext::$pkg";
985		883
986	warn "loading '$path' into '$pkg'\n";	884	warn "... loading '$path' into '$pkg'\n";
987		885
988	open my $fh, "<:utf8", $path	886	open my $fh, "<:utf8", $path
989	or die "$path: $!";	887	or die "$path: $!";
990		888
991	my $source =	889	my $source =
992	"package $pkg; use strict; use utf8;\n"	890	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"	891	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })	892	. (do { local $/; <$fh> })
995	. "\n};\n1";	893	. "\n};\n1";
996		894
997	eval $source	895	unless (eval $source) {
998	or die $@ ? "$path: $@\n"	896	my $msg = $@ ? "$path: $@\n"
999	: "extension disabled.\n";	897	: "extension disabled.\n";
1000		898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1001	push @exts, $pkg;	899	warn $@;
1002	$ext_pkg{$base} = $pkg;	900	warn "mandatory extension failed to load, exiting.\n";
1003		901	exit 1;
1004	# no strict 'refs';	902	}
1005	# @{"$pkg\::ISA"} = ext::;	903	die $@;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }	904	}
1020		905
1021	# remove commands	906	push @EXTS, $pkg;
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}
1030	}
1031
1032	# remove extcmds
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}	907	}
1046		908
1047	sub load_extensions {	909	sub load_extensions {
1048	for my $ext (<$LIBDIR/*.ext>) {	910	for my $ext (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;	911	next unless -r $ext;
…		…
1053	} or warn "$ext not loaded: $@";	915	} or warn "$ext not loaded: $@";
1054	}	916	}
1055	}	917	}
1056		918
1057	#############################################################################	919	#############################################################################
1058	# load/save/clean perl data associated with a map
1059
1060	*cf::mapsupport::on_clean = sub {
1061	my ($map) = @_;
1062
1063	my $path = $map->tmpname;
1064	defined $path or return;
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}
1077
1078	# TODO: compatibility cruft, remove when no longer needed
1079	cf::player->attach (
1080	on_load => sub {
1081	my ($pl, $path) = @_;
1082
1083	for my $o (all_objects $pl->ob) {
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1085	$o->set_ob_key_value ("_perl_data");
1086
1087	%$o = %{ Storable::thaw pack "H*", $value };
1088	}
1089	}
1090	},
1091	);
1092
1093	#############################################################################
1094		920
1095	=head2 CORE EXTENSIONS	921	=head2 CORE EXTENSIONS
1096		922
1097	Functions and methods that extend core crossfire objects.	923	Functions and methods that extend core crossfire objects.
1098		924
		925	=cut
		926
		927	package cf::player;
		928
		929	use Coro::AIO;
		930
1099	=head3 cf::player	931	=head3 cf::player
1100		932
1101	=over 4	933	=over 4
1102		934
1103	=item cf::player::exists $login	935	=item cf::player::find $login
1104		936
1105	Returns true when the given account exists.	937	Returns the given player object, loading it if necessary (might block).
1106		938
1107	=cut	939	=cut
1108		940
1109	sub cf::player::exists($) {	941	sub playerdir($) {
1110	cf::player::find $_[0]	942	cf::localdir
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	943	. "/"
		944	. cf::playerdir
		945	. "/"
		946	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		947	}
		948
		949	sub path($) {
		950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		951
		952	(playerdir $login) . "/$login.pl"
		953	}
		954
		955	sub find_active($) {
		956	$cf::PLAYER{$_[0]}
		957	and $cf::PLAYER{$_[0]}->active
		958	and $cf::PLAYER{$_[0]}
		959	}
		960
		961	sub exists($) {
		962	my ($login) = @_;
		963
		964	$cf::PLAYER{$login}
		965	or cf::sync_job { !aio_stat path $login }
		966	}
		967
		968	sub find($) {
		969	return $cf::PLAYER{$_[0]} || do {
		970	my $login = $_[0];
		971
		972	my $guard = cf::lock_acquire "user_find:$login";
		973
		974	$cf::PLAYER{$_[0]} || do {
		975	my $pl = load_pl path $login
		976	or return;
		977	$cf::PLAYER{$login} = $pl
		978	}
		979	}
		980	}
		981
		982	sub save($) {
		983	my ($pl) = @_;
		984
		985	return if $pl->{deny_save};
		986
		987	my $path = path $pl;
		988	my $guard = cf::lock_acquire "user_save:$path";
		989
		990	return if $pl->{deny_save};
		991
		992	aio_mkdir playerdir $pl, 0770;
		993	$pl->{last_save} = $cf::RUNTIME;
		994
		995	$pl->save_pl ($path);
		996	Coro::cede;
		997	}
		998
		999	sub new($) {
		1000	my ($login) = @_;
		1001
		1002	my $self = create;
		1003
		1004	$self->ob->name ($login);
		1005	$self->{deny_save} = 1;
		1006
		1007	$cf::PLAYER{$login} = $self;
		1008
		1009	$self
		1010	}
		1011
		1012	=item $pl->quit_character
		1013
		1014	Nukes the player without looking back. If logged in, the connection will
		1015	be destroyed. May block for a long time.
		1016
		1017	=cut
		1018
		1019	sub quit_character {
		1020	my ($pl) = @_;
		1021
		1022	$pl->{deny_save} = 1;
		1023	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1024
		1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1026	$pl->deactivate;
		1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1028	$pl->ns->destroy if $pl->ns;
		1029
		1030	my $path = playerdir $pl;
		1031	my $temp = "$path~$cf::RUNTIME~deleting~";
		1032	aio_rename $path, $temp;
		1033	delete $cf::PLAYER{$pl->ob->name};
		1034	$pl->destroy;
		1035	IO::AIO::aio_rmtree $temp;
		1036	}
		1037
		1038	=item cf::player::list_logins
		1039
		1040	Returns am arrayref of all valid playernames in the system, can take a
		1041	while and may block, so not sync_job-capable, ever.
		1042
		1043	=cut
		1044
		1045	sub list_logins {
		1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1047	or return [];
		1048
		1049	my @logins;
		1050
		1051	for my $login (@$dirs) {
		1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1053	aio_read $fh, 0, 512, my $buf, 0 or next;
		1054	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1055
		1056	utf8::decode $login;
		1057	push @logins, $login;
		1058	}
		1059
		1060	\@logins
		1061	}
		1062
		1063	=item $player->maps
		1064
		1065	Returns an arrayref of map paths that are private for this
		1066	player. May block.
		1067
		1068	=cut
		1069
		1070	sub maps($) {
		1071	my ($pl) = @_;
		1072
		1073	my $files = aio_readdir playerdir $pl
		1074	or return;
		1075
		1076	my @paths;
		1077
		1078	for (@$files) {
		1079	utf8::decode $_;
		1080	next if /\.(?:pl|pst)$/;
		1081	next unless /^$PATH_SEP/o;
		1082
		1083	s/\.map$//;
		1084	push @paths, "~" . $pl->ob->name . "/" . $_;
		1085	}
		1086
		1087	\@paths
1112	}	1088	}
1113		1089
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)	1090	=item $player->ext_reply ($msgid, $msgtype, %msg)
1115		1091
1116	Sends an ext reply to the player.	1092	Sends an ext reply to the player.
1117		1093
1118	=cut	1094	=cut
1119		1095
1120	sub cf::player::ext_reply($$$%) {	1096	sub ext_reply($$$%) {
1121	my ($self, $id, %msg) = @_;	1097	my ($self, $id, %msg) = @_;
1122		1098
1123	$msg{msgid} = $id;	1099	$msg{msgid} = $id;
1124		1100
1125	$self->send ("ext " . to_json \%msg);	1101	$self->send ("ext " . cf::to_json \%msg);
1126	}	1102	}
		1103
		1104	package cf;
1127		1105
1128	=back	1106	=back
1129		1107
1130		1108
1131	=head3 cf::map	1109	=head3 cf::map
…		…
1137	package cf::map;	1115	package cf::map;
1138		1116
1139	use Fcntl;	1117	use Fcntl;
1140	use Coro::AIO;	1118	use Coro::AIO;
1141		1119
		1120	use overload
		1121	'""' => \&as_string,
		1122	fallback => 1;
		1123
1142	our $MAX_RESET = 7200;	1124	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1125	our $DEFAULT_RESET = 3000;
1144		1126
1145	sub generate_random_map {	1127	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1128	my ($self, $rmp) = @_;
1147
1148	# mit "rum" bekleckern, nicht	1129	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1130	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1134	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1135	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(cf::region::find $rmp->{region})	1141	(cf::region::find $rmp->{region}), $rmp->{custom}
		1142	)
		1143	}
		1144
		1145	sub register {
		1146	my (undef, $regex) = @_;
		1147	my $pkg = caller;
		1148
		1149	no strict;
		1150	push @{"$pkg\::ISA"}, __PACKAGE__;
		1151
		1152	$EXT_MAP{$pkg} = qr<$regex>;
		1153	}
		1154
		1155	# also paths starting with '/'
		1156	$EXT_MAP{"cf::map"} = qr{^(?=/)};
		1157
		1158	sub thawer_merge {
		1159	my ($self, $merge) = @_;
		1160
		1161	# we have to keep some variables in memory intact
		1162	local $self->{path};
		1163	local $self->{load_path};
		1164	local $self->{deny_save};
		1165	local $self->{deny_reset};
		1166
		1167	$self->SUPER::thawer_merge ($merge);
		1168	}
		1169
		1170	sub normalise {
		1171	my ($path, $base) = @_;
		1172
		1173	# map plan:
		1174	#
		1175	# /! non-realised random map exit (special hack!)
		1176	# {... are special paths that are not being touched
		1177	# ?xxx/... are special absolute paths
		1178	# ?random/... random maps
		1179	# /... normal maps
		1180	# ~user/... per-player map of a specific user
		1181
		1182	$path =~ s/$PATH_SEP/\//go;
		1183
		1184	# treat it as relative path if it starts with
		1185	# something that looks reasonable
		1186	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1187	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1188
		1189	$base =~ s{[^/]+/?$}{};
		1190	$path = "$base/$path";
		1191	}
		1192
		1193	for ($path) {
		1194	redo if s{//}{/};
		1195	redo if s{/\.?/}{/};
		1196	redo if s{/[^/]+/\.\./}{/};
		1197	}
		1198
		1199	$path
		1200	}
		1201
		1202	sub new_from_path {
		1203	my (undef, $path, $base) = @_;
		1204
		1205	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1206
		1207	$path = normalise $path, $base;
		1208
		1209	for my $pkg (keys %EXT_MAP) {
		1210	if ($path =~ $EXT_MAP{$pkg}) {
		1211	my $self = bless cf::map::new, $pkg;
		1212	$self->{path} = $path; $self->path ($path);
		1213	$self->init; # pass $1 etc.
		1214	return $self;
		1215	}
		1216	}
		1217
		1218	Carp::carp "unable to resolve path '$path'.";
		1219	()
		1220	}
		1221
		1222	sub init {
		1223	my ($self) = @_;
		1224
		1225	$self
		1226	}
		1227
		1228	sub as_string {
		1229	my ($self) = @_;
		1230
		1231	"$self->{path}"
		1232	}
		1233
		1234	# the displayed name, this is a one way mapping
		1235	sub visible_name {
		1236	&as_string
		1237	}
		1238
		1239	# the original (read-only) location
		1240	sub load_path {
		1241	my ($self) = @_;
		1242
		1243	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1244	}
		1245
		1246	# the temporary/swap location
		1247	sub save_path {
		1248	my ($self) = @_;
		1249
		1250	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1251	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1252	}
		1253
		1254	# the unique path, undef == no special unique path
		1255	sub uniq_path {
		1256	my ($self) = @_;
		1257
		1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1259	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1162	}	1260	}
1163		1261
1164	# and all this just because we cannot iterate over	1262	# and all this just because we cannot iterate over
1165	# all maps in C++...	1263	# all maps in C++...
1166	sub change_all_map_light {	1264	sub change_all_map_light {
…		…
1168		1266
1169	$_->change_map_light ($change)	1267	$_->change_map_light ($change)
1170	for grep $_->outdoor, values %cf::MAP;	1268	for grep $_->outdoor, values %cf::MAP;
1171	}	1269	}
1172		1270
		1271	sub unlink_save {
		1272	my ($self) = @_;
		1273
		1274	utf8::encode (my $save = $self->save_path);
		1275	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1276	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1277	}
		1278
1173	sub try_load_header($) {	1279	sub load_header_from($) {
1174	my ($path) = @_;	1280	my ($self, $path) = @_;
1175		1281
1176	utf8::encode $path;	1282	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1283	aio_open $path, O_RDONLY, 0
1178	or return;	1284	or return;
1179		1285
1180	my $map = cf::map::new	1286	$self->_load_header ($path)
1181	or return;	1287	or return;
1182		1288
1183	$map->load_header ($path)	1289	$self->{load_path} = $path;
		1290
		1291	1
		1292	}
		1293
		1294	sub load_orig {
		1295	my ($self) = @_;
		1296
		1297	$self->load_header_from ($self->load_path)
		1298	}
		1299
		1300	sub load_temp {
		1301	my ($self) = @_;
		1302
		1303	$self->load_header_from ($self->save_path)
		1304	}
		1305
		1306	sub load_header {
		1307	my ($self) = @_;
		1308
		1309	if ($self->load_temp) {
		1310	$self->last_access ((delete $self->{last_access})
		1311	|| $cf::RUNTIME); #d#
		1312	# safety
		1313	$self->{instantiate_time} = $cf::RUNTIME
		1314	if $self->{instantiate_time} > $cf::RUNTIME;
		1315	} else {
		1316	$self->load_orig
1184	or return;	1317	or return;
1185		1318
1186	$map->{load_path} = $path;	1319	$self->{load_original} = 1;
		1320	$self->{instantiate_time} = $cf::RUNTIME;
		1321	$self->last_access ($cf::RUNTIME);
		1322	$self->instantiate;
		1323	}
1187		1324
1188	$map	1325	1
1189	}	1326	}
1190		1327
1191	sub find_map;	1328	sub find;
1192	sub find_map {	1329	sub find {
1193	my ($path, $origin) = @_;	1330	my ($path, $origin) = @_;
1194		1331
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	1332	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		1333
1200	cf::lock_wait "map_find:$key";	1334	cf::lock_wait "map_find:$path";
1201		1335
1202	$cf::MAP{$key} || do {	1336	$cf::MAP{$path} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	1337	my $guard = cf::lock_acquire "map_find:$path";
1204		1338	my $map = new_from_path cf::map $path
1205	# do it the slow way
1206	my $map = try_load_header $path->save_path;
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	1339	or return;
1220		1340
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	1341	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);	1342
		1343	$map->load_header
		1344	or return;
1233		1345
1234	if ($map->should_reset) {	1346	if ($map->should_reset) {
		1347	# doing this can freeze the server in a sync job, obviously
		1348	#$cf::WAIT_FOR_TICK->wait;
1235	$map->reset;	1349	$map->reset;
1236	undef $guard;	1350	undef $guard;
1237	$map = find_map $path	1351	$map = find $path
1238	or return;	1352	or return;
1239	}	1353	}
1240		1354
1241	$cf::MAP{$key} = $map	1355	$cf::MAP{$path} = $map
1242	}	1356	}
1243	}	1357	}
1244		1358
1245	sub load {	1359	sub load {
1246	my ($self) = @_;	1360	my ($self) = @_;
1247		1361
1248	my $path = $self->{path};	1362	my $path = $self->{path};
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1363	my $guard = cf::lock_acquire "map_load:$path";
1250		1364
1251	return if $self->in_memory != cf::MAP_SWAPPED;	1365	return if $self->in_memory != cf::MAP_SWAPPED;
1252		1366
1253	$self->in_memory (cf::MAP_LOADING);	1367	$self->in_memory (cf::MAP_LOADING);
1254		1368
1255	$self->alloc;	1369	$self->alloc;
1256	$self->load_objects ($self->{load_path}, 1)	1370	$self->_load_objects ($self->{load_path}, 1)
1257	or return;	1371	or return;
1258		1372
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1373	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260	if delete $self->{load_original};	1374	if delete $self->{load_original};
1261		1375
1262	if (my $uniq = $path->uniq_path) {	1376	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	1377	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	1378	if (aio_open $uniq, O_RDONLY, 0) {
1265	$self->clear_unique_items;	1379	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	1380	$self->_load_objects ($uniq, 0);
1267	}	1381	}
1268	}	1382	}
		1383
		1384	Coro::cede;
1269		1385
1270	# now do the right thing for maps	1386	# now do the right thing for maps
1271	$self->link_multipart_objects;	1387	$self->link_multipart_objects;
1272		1388
1273	if ($self->{path}->is_style_map) {	1389	unless ($self->{deny_activate}) {
1274	$self->{deny_save} = 1;	1390	$self->decay_objects;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;	1391	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;	1392	$self->update_buttons;
		1393	Coro::cede;
1280	$self->set_darkness_map;	1394	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	1395	$self->difficulty ($self->estimate_difficulty)
1282	unless $self->difficulty;	1396	unless $self->difficulty;
		1397	Coro::cede;
1283	$self->activate;	1398	$self->activate;
1284	}	1399	}
1285		1400
1286	$self->in_memory (cf::MAP_IN_MEMORY);	1401	$self->in_memory (cf::MAP_IN_MEMORY);
1287	}	1402	}
1288		1403
1289	sub load_map_sync {	1404	sub customise_for {
		1405	my ($self, $ob) = @_;
		1406
		1407	return find "~" . $ob->name . "/" . $self->{path}
		1408	if $self->per_player;
		1409
		1410	$self
		1411	}
		1412
		1413	# find and load all maps in the 3x3 area around a map
		1414	sub load_diag {
		1415	my ($map) = @_;
		1416
		1417	my @diag; # diagonal neighbours
		1418
		1419	for (0 .. 3) {
		1420	my $neigh = $map->tile_path ($_)
		1421	or next;
		1422	$neigh = find $neigh, $map
		1423	or next;
		1424	$neigh->load;
		1425
		1426	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1427	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1428	}
		1429
		1430	for (@diag) {
		1431	my $neigh = find @$_
		1432	or next;
		1433	$neigh->load;
		1434	}
		1435	}
		1436
		1437	sub find_sync {
1290	my ($path, $origin) = @_;	1438	my ($path, $origin) = @_;
1291		1439
1292	#warn "load_map_sync<$path, $origin>\n";#d#	1440	cf::sync_job { find $path, $origin }
		1441	}
1293		1442
1294	cf::sync_job {	1443	sub do_load_sync {
1295	my $map = cf::map::find_map $path, $origin	1444	my ($map) = @_;
1296	or return;	1445
		1446	cf::sync_job { $map->load };
		1447	}
		1448
		1449	our %MAP_PREFETCH;
		1450	our $MAP_PREFETCHER = undef;
		1451
		1452	sub find_async {
		1453	my ($path, $origin) = @_;
		1454
		1455	$path = normalise $path, $origin && $origin->{path};
		1456
		1457	if (my $map = $cf::MAP{$path}) {
		1458	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1459	}
		1460
		1461	undef $MAP_PREFETCH{$path};
		1462	$MAP_PREFETCHER ||= cf::async {
		1463	while (%MAP_PREFETCH) {
		1464	for my $path (keys %MAP_PREFETCH) {
		1465	my $map = find $path
		1466	or next;
1297	$map->load;	1467	$map->load;
1298	$map	1468
		1469	delete $MAP_PREFETCH{$path};
		1470	}
		1471	}
		1472	undef $MAP_PREFETCHER;
1299	}	1473	};
		1474
		1475	()
1300	}	1476	}
1301		1477
1302	sub save {	1478	sub save {
1303	my ($self) = @_;	1479	my ($self) = @_;
1304		1480
		1481	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1482
1305	$self->{last_save} = $cf::RUNTIME;	1483	$self->{last_save} = $cf::RUNTIME;
1306		1484
1307	return unless $self->dirty;	1485	return unless $self->dirty;
1308		1486
1309	my $save = $self->{path}->save_path; utf8::encode $save;	1487	my $save = $self->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1488	my $uniq = $self->uniq_path; utf8::encode $uniq;
1311		1489
1312	$self->{load_path} = $save;	1490	$self->{load_path} = $save;
1313		1491
1314	return if $self->{deny_save};	1492	return if $self->{deny_save};
1315		1493
		1494	local $self->{last_access} = $self->last_access;#d#
		1495
		1496	cf::async {
		1497	$_->contr->save for $self->players;
		1498	};
		1499
1316	if ($uniq) {	1500	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1501	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	1502	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	1503	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1504	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	1505	}
1322	}	1506	}
1323		1507
1324	sub swap_out {	1508	sub swap_out {
1325	my ($self) = @_;	1509	my ($self) = @_;
		1510
		1511	# save first because save cedes
		1512	$self->save;
		1513
		1514	my $lock = cf::lock_acquire "map_data:" . $self->path;
1326		1515
1327	return if $self->players;	1516	return if $self->players;
1328	return if $self->in_memory != cf::MAP_IN_MEMORY;	1517	return if $self->in_memory != cf::MAP_IN_MEMORY;
1329	return if $self->{deny_save};	1518	return if $self->{deny_save};
1330		1519
1331	$self->save;
1332	$self->clear;	1520	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);	1521	$self->in_memory (cf::MAP_SWAPPED);
1334	}	1522	}
1335		1523
1336	sub reset_at {	1524	sub reset_at {
1337	my ($self) = @_;	1525	my ($self) = @_;
1338		1526
1339	# TODO: safety, remove and allow resettable per-player maps	1527	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};	1528	return 1e99 if $self->isa ("ext::map_per_player");#d#
1341	return 1e99 if $self->{deny_reset};	1529	return 1e99 if $self->{deny_reset};
1342		1530
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1531	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1532	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1533
…		…
1350	my ($self) = @_;	1538	my ($self) = @_;
1351		1539
1352	$self->reset_at <= $cf::RUNTIME	1540	$self->reset_at <= $cf::RUNTIME
1353	}	1541	}
1354		1542
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	1543	sub reset {
1377	my ($self) = @_;	1544	my ($self) = @_;
1378		1545
		1546	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1547
1379	return if $self->players;	1548	return if $self->players;
1380	return if $self->{path}{user_rel};#d#	1549	return if $self->isa ("ext::map_per_player");#d#
1381		1550
1382	warn "resetting map ", $self->path;#d#	1551	warn "resetting map ", $self->path;#d#
1383		1552
1384	delete $cf::MAP{$self->path};	1553	delete $cf::MAP{$self->path};
		1554
		1555	$self->in_memory (cf::MAP_SWAPPED);
		1556	$self->clear;
1385		1557
1386	$_->clear_links_to ($self) for values %cf::MAP;	1558	$_->clear_links_to ($self) for values %cf::MAP;
1387		1559
1388	$self->unlink_save;	1560	$self->unlink_save;
1389	$self->destroy;	1561	$self->destroy;
…		…
1392	my $nuke_counter = "aaaa";	1564	my $nuke_counter = "aaaa";
1393		1565
1394	sub nuke {	1566	sub nuke {
1395	my ($self) = @_;	1567	my ($self) = @_;
1396		1568
		1569	delete $cf::MAP{$self->path};
		1570
		1571	$self->unlink_save;
		1572
		1573	bless $self, "cf::map";
		1574	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	1575	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	1576	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	1577	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1578
		1579	$cf::MAP{$self->path} = $self;
		1580
1400	$self->reset; # polite request, might not happen	1581	$self->reset; # polite request, might not happen
1401	}	1582	}
1402		1583
1403	sub customise_for {	1584	=item cf::map::unique_maps
1404	my ($map, $ob) = @_;
1405		1585
1406	if ($map->per_player) {	1586	Returns an arrayref of paths of all shared maps that have
1407	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1587	instantiated unique items. May block.
1408	}
1409		1588
1410	$map	1589	=cut
1411	}
1412		1590
1413	sub emergency_save {	1591	sub unique_maps() {
1414	local $cf::FREEZE = 1;	1592	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1593	or return;
1415		1594
1416	warn "enter emergency map save\n";	1595	my @paths;
1417		1596
1418	cf::sync_job {	1597	for (@$files) {
1419	warn "begin emergency map save\n";	1598	utf8::decode $_;
1420	$_->save for values %cf::MAP;	1599	next if /\.pst$/;
		1600	next unless /^$PATH_SEP/o;
		1601
		1602	s/\.map$//;
		1603	push @paths, $_;
1421	};	1604	}
1422		1605
1423	warn "end emergency map save\n";	1606	\@paths
1424	}	1607	}
1425		1608
1426	package cf;	1609	package cf;
1427		1610
1428	=back	1611	=back
1429		1612
		1613	=head3 cf::object
		1614
		1615	=cut
		1616
		1617	package cf::object;
		1618
		1619	=over 4
		1620
		1621	=item $ob->inv_recursive
		1622
		1623	Returns the inventory of the object _and_ their inventories, recursively.
		1624
		1625	=cut
		1626
		1627	sub inv_recursive_;
		1628	sub inv_recursive_ {
		1629	map { $_, inv_recursive_ $_->inv } @_
		1630	}
		1631
		1632	sub inv_recursive {
		1633	inv_recursive_ inv $_[0]
		1634	}
		1635
		1636	package cf;
		1637
		1638	=back
1430		1639
1431	=head3 cf::object::player	1640	=head3 cf::object::player
1432		1641
1433	=over 4	1642	=over 4
1434		1643
…		…
1474		1683
1475	=item $player_object->enter_link	1684	=item $player_object->enter_link
1476		1685
1477	Freezes the player and moves him/her to a special map (C<{link}>).	1686	Freezes the player and moves him/her to a special map (C<{link}>).
1478		1687
1479	The player should be reaosnably safe there for short amounts of time. You	1688	The player should be reasonably safe there for short amounts of time. You
1480	I<MUST> call C<leave_link> as soon as possible, though.	1689	I<MUST> call C<leave_link> as soon as possible, though.
1481		1690
		1691	Will never block.
		1692
1482	=item $player_object->leave_link ($map, $x, $y)	1693	=item $player_object->leave_link ($map, $x, $y)
1483		1694
1484	Moves the player out of the specila link map onto the given map. If the	1695	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	1696	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	1697	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	1698	fails, to the emergency map position.
1488		1699
1489	Might block.	1700	Might block.
1490		1701
1491	=cut	1702	=cut
		1703
		1704	sub link_map {
		1705	unless ($LINK_MAP) {
		1706	$LINK_MAP = cf::map::find "{link}"
		1707	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1708	$LINK_MAP->load;
		1709	}
		1710
		1711	$LINK_MAP
		1712	}
1492		1713
1493	sub cf::object::player::enter_link {	1714	sub cf::object::player::enter_link {
1494	my ($self) = @_;	1715	my ($self) = @_;
1495		1716
1496	$self->deactivate_recursive;	1717	$self->deactivate_recursive;
1497		1718
1498	return if $self->map == $LINK_MAP;	1719	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		1720
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1721	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	1722	if $self->map;
1502		1723
1503	$self->enter_map ($LINK_MAP, 20, 20);	1724	$self->enter_map ($LINK_MAP || link_map, 20, 20);
1504	}	1725	}
1505		1726
1506	sub cf::object::player::leave_link {	1727	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	1728	my ($self, $map, $x, $y) = @_;
1508		1729
1509	my $link_pos = delete $self->{_link_pos};	1730	my $link_pos = delete $self->{_link_pos};
1510		1731
1511	unless ($map) {	1732	unless ($map) {
1512	# restore original map position	1733	# restore original map position
1513	($map, $x, $y) = @{ $link_pos || [] };	1734	($map, $x, $y) = @{ $link_pos || [] };
1514	$map = cf::map::find_map $map;	1735	$map = cf::map::find $map;
1515		1736
1516	unless ($map) {	1737	unless ($map) {
1517	($map, $x, $y) = @$EMERGENCY_POSITION;	1738	($map, $x, $y) = @$EMERGENCY_POSITION;
1518	$map = cf::map::find_map $map	1739	$map = cf::map::find $map
1519	or die "FATAL: cannot load emergency map\n";	1740	or die "FATAL: cannot load emergency map\n";
1520	}	1741	}
1521	}	1742	}
1522		1743
1523	($x, $y) = (-1, -1)	1744	($x, $y) = (-1, -1)
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	1747	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	1748	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	1749	if $x <=0 && $y <= 0;
1529		1750
1530	$map->load;	1751	$map->load;
		1752	$map->load_diag;
1531		1753
		1754	return unless $self->contr->active;
1532	$self->activate_recursive;	1755	$self->activate_recursive;
1533	$self->enter_map ($map, $x, $y);	1756	$self->enter_map ($map, $x, $y);
1534	}	1757	}
1535		1758
1536	cf::player->attach (	1759	cf::player->attach (
…		…
1549		1772
1550	# try to abort aborted map switching on player login :)	1773	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes	1774	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {	1775	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;	1776	$pl->ob->enter_link;
1554	cf::async {	1777	(async {
1555	# we need this sleep as the login has a concurrent enter_exit running	1778	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn	1779	# and this sleep increases chances of the player not ending up in scorn
		1780	$pl->ob->reply (undef,
		1781	"There was an internal problem at your last logout, "
		1782	. "the server will try to bring you to your intended destination in a second.",
		1783	cf::NDI_RED);
1557	Coro::Timer::sleep 1;	1784	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;	1785	$pl->ob->leave_link;
1559	};	1786	})->prio (2);
1560	}	1787	}
1561	},	1788	},
1562	);	1789	);
1563		1790
1564	=item $player_object->goto_map ($path, $x, $y)	1791	=item $player_object->goto ($path, $x, $y)
1565		1792
1566	=cut	1793	=cut
1567		1794
1568	sub cf::object::player::goto_map {	1795	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	1796	my ($self, $path, $x, $y) = @_;
1570		1797
1571	$self->enter_link;	1798	$self->enter_link;
1572		1799
1573	(cf::async {	1800	(async {
1574	$path = new cf::path $path;
1575
1576	my $map = cf::map::find_map $path->as_string;	1801	my $map = cf::map::find $path;
1577	$map = $map->customise_for ($self) if $map;	1802	$map = $map->customise_for ($self) if $map;
1578		1803
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	1804	# warn "entering ", $map->path, " at ($x, $y)\n"
1580	# if $map;	1805	# if $map;
1581		1806
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1807	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1583		1808
1584	$self->leave_link ($map, $x, $y);	1809	$self->leave_link ($map, $x, $y);
1585	})->prio (1);	1810	})->prio (1);
1586	}	1811	}
1587		1812
…		…
1591		1816
1592	sub parse_random_map_params {	1817	sub parse_random_map_params {
1593	my ($spec) = @_;	1818	my ($spec) = @_;
1594		1819
1595	my $rmp = { # defaults	1820	my $rmp = { # defaults
1596	xsize => 10,	1821	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	1822	ysize => (cf::rndm 15, 40),
		1823	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1824	#layout => string,
1598	};	1825	};
1599		1826
1600	for (split /\n/, $spec) {	1827	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	1828	my ($k, $v) = split /\s+/, $_, 2;
1602		1829
…		…
1606	$rmp	1833	$rmp
1607	}	1834	}
1608		1835
1609	sub prepare_random_map {	1836	sub prepare_random_map {
1610	my ($exit) = @_;	1837	my ($exit) = @_;
		1838
		1839	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		1840
1612	# all this does is basically replace the /! path by	1841	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	1842	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	1843	# that depends on the exit object
1615		1844
…		…
1624		1853
1625	$rmp->{random_seed} ||= $exit->random_seed;	1854	$rmp->{random_seed} ||= $exit->random_seed;
1626		1855
1627	my $data = cf::to_json $rmp;	1856	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	1857	my $md5 = Digest::MD5::md5_hex $data;
		1858	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1629		1859
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1860	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	1861	aio_write $fh, 0, (length $data), $data, 0;
		1862	undef $fh;
		1863	aio_rename "$meta~", $meta;
1632		1864
1633	$exit->slaying ("?random/$md5");	1865	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	1866	$exit->msg (undef);
1635	}	1867	}
1636	}	1868	}
…		…
1640		1872
1641	return unless $self->type == cf::PLAYER;	1873	return unless $self->type == cf::PLAYER;
1642		1874
1643	$self->enter_link;	1875	$self->enter_link;
1644		1876
1645	(cf::async {	1877	(async {
		1878	$self->deactivate_recursive; # just to be sure
1646	unless (eval {	1879	unless (eval {
1647	prepare_random_map $exit	1880	prepare_random_map $exit
1648	if $exit->slaying eq "/!";	1881	if $exit->slaying eq "/!";
1649		1882
1650	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	1883	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1651	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	1884	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1652		1885
1653	1;	1886	1;
1654	}) {	1887	}) {
1655	$self->message ("Something went wrong deep within the crossfire server. "	1888	$self->message ("Something went wrong deep within the crossfire server. "
1656	. "I'll try to bring you back to the map you were before. "	1889	. "I'll try to bring you back to the map you were before. "
1657	. "Please report this to the dungeon master",	1890	. "Please report this to the dungeon master!",
1658	cf::NDI_UNIQUE | cf::NDI_RED);	1891	cf::NDI_UNIQUE | cf::NDI_RED);
1659		1892
1660	warn "ERROR in enter_exit: $@";	1893	warn "ERROR in enter_exit: $@";
1661	$self->leave_link;	1894	$self->leave_link;
1662	}	1895	}
…		…
1714	my ($ns, $msg) = @_;	1947	my ($ns, $msg) = @_;
1715		1948
1716	# this weird shuffling is so that direct followup queries	1949	# this weird shuffling is so that direct followup queries
1717	# get handled first	1950	# get handled first
1718	my $queue = delete $ns->{query_queue}	1951	my $queue = delete $ns->{query_queue}
1719	or return; # be conservative, not sure how that cna happen, but we saw a crash here	1952	or return; # be conservative, not sure how that can happen, but we saw a crash here
1720		1953
1721	(shift @$queue)->[1]->($msg);	1954	(shift @$queue)->[1]->($msg);
1722		1955
1723	push @{ $ns->{query_queue} }, @$queue;	1956	push @{ $ns->{query_queue} }, @$queue;
1724		1957
…		…
1730	}	1963	}
1731	}	1964	}
1732	},	1965	},
1733	);	1966	);
1734		1967
1735	=item $client->coro (\&cb)	1968	=item $client->async (\&cb)
1736		1969
1737	Create a new coroutine, running the specified callback. The coroutine will	1970	Create a new coroutine, running the specified callback. The coroutine will
1738	be automatically cancelled when the client gets destroyed (e.g. on logout,	1971	be automatically cancelled when the client gets destroyed (e.g. on logout,
1739	or loss of connection).	1972	or loss of connection).
1740		1973
1741	=cut	1974	=cut
1742		1975
1743	sub cf::client::coro {	1976	sub cf::client::async {
1744	my ($self, $cb) = @_;	1977	my ($self, $cb) = @_;
1745		1978
1746	my $coro = &cf::async ($cb);	1979	my $coro = &Coro::async ($cb);
1747		1980
1748	$coro->on_destroy (sub {	1981	$coro->on_destroy (sub {
1749	delete $self->{_coro}{$coro+0};	1982	delete $self->{_coro}{$coro+0};
1750	});	1983	});
1751		1984
…		…
1945	sub db_sync() {	2178	sub db_sync() {
1946	db_save if $dirty;	2179	db_save if $dirty;
1947	undef $dirty;	2180	undef $dirty;
1948	}	2181	}
1949		2182
1950	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2183	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1951	db_sync;	2184	db_sync;
1952	});	2185	});
1953		2186
1954	sub db_dirty() {	2187	sub db_dirty() {
1955	$dirty = 1;	2188	$dirty = 1;
…		…
1986	open my $fh, "<:utf8", cf::confdir . "/config"	2219	open my $fh, "<:utf8", cf::confdir . "/config"
1987	or return;	2220	or return;
1988		2221
1989	local $/;	2222	local $/;
1990	*CFG = YAML::Syck::Load <$fh>;	2223	*CFG = YAML::Syck::Load <$fh>;
		2224
		2225	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2226
		2227	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2228	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2229
		2230	if (exists $CFG{mlockall}) {
		2231	eval {
		2232	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2233	and die "WARNING: m(un)lockall failed: $!\n";
		2234	};
		2235	warn $@ if $@;
		2236	}
1991	}	2237	}
1992		2238
1993	sub main {	2239	sub main {
1994	# we must not ever block the main coroutine	2240	# we must not ever block the main coroutine
1995	local $Coro::idle = sub {	2241	local $Coro::idle = sub {
1996	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2242	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1997	(Coro::unblock_sub {	2243	(async {
1998	Event::one_event;	2244	Event::one_event;
1999	})->();	2245	})->prio (Coro::PRIO_MAX);
2000	};	2246	};
2001		2247
2002	cfg_load;	2248	cfg_load;
2003	db_load;	2249	db_load;
2004	load_extensions;	2250	load_extensions;
		2251
		2252	$TICK_WATCHER->start;
2005	Event::loop;	2253	Event::loop;
2006	}	2254	}
2007		2255
2008	#############################################################################	2256	#############################################################################
2009	# initialisation	2257	# initialisation and cleanup
		2258
		2259	# install some emergency cleanup handlers
		2260	BEGIN {
		2261	for my $signal (qw(INT HUP TERM)) {
		2262	Event->signal (
		2263	data => WF_AUTOCANCEL,
		2264	signal => $signal,
		2265	cb => sub {
		2266	cf::cleanup "SIG$signal";
		2267	},
		2268	);
		2269	}
		2270	}
		2271
		2272	sub emergency_save() {
		2273	my $freeze_guard = cf::freeze_mainloop;
		2274
		2275	warn "enter emergency perl save\n";
		2276
		2277	cf::sync_job {
		2278	# use a peculiar iteration method to avoid tripping on perl
		2279	# refcount bugs in for. also avoids problems with players
		2280	# and maps saved/destroyed asynchronously.
		2281	warn "begin emergency player save\n";
		2282	for my $login (keys %cf::PLAYER) {
		2283	my $pl = $cf::PLAYER{$login} or next;
		2284	$pl->valid or next;
		2285	$pl->save;
		2286	}
		2287	warn "end emergency player save\n";
		2288
		2289	warn "begin emergency map save\n";
		2290	for my $path (keys %cf::MAP) {
		2291	my $map = $cf::MAP{$path} or next;
		2292	$map->valid or next;
		2293	$map->save;
		2294	}
		2295	warn "end emergency map save\n";
		2296	};
		2297
		2298	warn "leave emergency perl save\n";
		2299	}
2010		2300
2011	sub reload() {	2301	sub reload() {
2012	# can/must only be called in main	2302	# can/must only be called in main
2013	if ($Coro::current != $Coro::main) {	2303	if ($Coro::current != $Coro::main) {
2014	warn "can only reload from main coroutine\n";	2304	warn "can only reload from main coroutine";
2015	return;	2305	return;
2016	}	2306	}
2017		2307
2018	warn "reloading...";	2308	warn "reloading...";
2019		2309
2020	local $FREEZE = 1;	2310	warn "cancelling server ticker";
		2311	$TICK_WATCHER->cancel;
		2312
2021	cf::emergency_save;	2313	cf::emergency_save;
2022		2314
2023	eval {	2315	eval {
2024	# if anything goes wrong in here, we should simply crash as we already saved	2316	# if anything goes wrong in here, we should simply crash as we already saved
2025		2317
2026	# cancel all watchers	2318	warn "syncing database to disk";
		2319	cf::db_sync;
		2320
		2321	warn "cancelling all WF_AUTOCANCEL watchers";
2027	for (Event::all_watchers) {	2322	for (Event::all_watchers) {
2028	$_->cancel if $_->data & WF_AUTOCANCEL;	2323	$_->cancel if $_->data & WF_AUTOCANCEL;
2029	}	2324	}
2030		2325
		2326	warn "flushing outstanding aio requests";
		2327	for (;;) {
		2328	IO::AIO::flush;
		2329	Coro::cede;
		2330	last unless IO::AIO::nreqs;
		2331	warn "iterate...";
		2332	}
		2333
2031	# cancel all extension coros	2334	warn "cancelling all extension coros";
2032	$_->cancel for values %EXT_CORO;	2335	$_->cancel for values %EXT_CORO;
2033	%EXT_CORO = ();	2336	%EXT_CORO = ();
2034		2337
2035	# unload all extensions	2338	warn "removing commands";
2036	for (@exts) {	2339	%COMMAND = ();
		2340
		2341	warn "removing ext commands";
		2342	%EXTCMD = ();
		2343
		2344	warn "unloading/nuking all extensions";
		2345	for my $pkg (@EXTS) {
2037	warn "unloading <$_>";	2346	warn "... unloading $pkg";
2038	unload_extension $_;	2347
		2348	if (my $cb = $pkg->can ("unload")) {
		2349	eval {
		2350	$cb->($pkg);
		2351	1
		2352	} or warn "$pkg unloaded, but with errors: $@";
2039	}	2353	}
2040		2354
		2355	warn "... nuking $pkg";
		2356	Symbol::delete_package $pkg;
		2357	}
		2358
2041	# unload all modules loaded from $LIBDIR	2359	warn "unloading all perl modules loaded from $LIBDIR";
2042	while (my ($k, $v) = each %INC) {	2360	while (my ($k, $v) = each %INC) {
2043	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2361	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2044		2362
2045	warn "removing <$k>";	2363	warn "... unloading $k";
2046	delete $INC{$k};	2364	delete $INC{$k};
2047		2365
2048	$k =~ s/\.pm$//;	2366	$k =~ s/\.pm$//;
2049	$k =~ s/\//::/g;	2367	$k =~ s/\//::/g;
2050		2368
…		…
2053	}	2371	}
2054		2372
2055	Symbol::delete_package $k;	2373	Symbol::delete_package $k;
2056	}	2374	}
2057		2375
2058	# sync database to disk
2059	cf::db_sync;
2060	IO::AIO::flush;
2061
2062	# get rid of safe::, as good as possible	2376	warn "getting rid of safe::, as good as possible";
2063	Symbol::delete_package "safe::$_"	2377	Symbol::delete_package "safe::$_"
2064	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2378	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2065		2379
2066	# remove register_script_function callbacks
2067	# TODO
2068
2069	# unload cf.pm "a bit"	2380	warn "unloading cf.pm \"a bit\"";
2070	delete $INC{"cf.pm"};	2381	delete $INC{"cf.pm"};
2071		2382
2072	# don't, removes xs symbols, too,	2383	# don't, removes xs symbols, too,
2073	# and global variables created in xs	2384	# and global variables created in xs
2074	#Symbol::delete_package __PACKAGE__;	2385	#Symbol::delete_package __PACKAGE__;
2075		2386
2076	# reload cf.pm	2387	warn "unload completed, starting to reload now";
		2388
2077	warn "reloading cf.pm";	2389	warn "reloading cf.pm";
2078	require cf;	2390	require cf;
2079	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2391	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2080		2392
2081	# load config and database again	2393	warn "loading config and database again";
2082	cf::cfg_load;	2394	cf::cfg_load;
2083	cf::db_load;	2395	cf::db_load;
2084		2396
2085	# load extensions
2086	warn "load extensions";	2397	warn "loading extensions";
2087	cf::load_extensions;	2398	cf::load_extensions;
2088		2399
2089	# reattach attachments to objects	2400	warn "reattaching attachments to objects/players";
2090	warn "reattach";
2091	_global_reattach;	2401	_global_reattach;
		2402	warn "reattaching attachments to maps";
		2403	reattach $_ for values %MAP;
		2404
		2405	warn "restarting server ticker";
		2406
		2407	$TICK_WATCHER->start;
2092	};	2408	};
2093		2409
2094	if ($@) {	2410	if ($@) {
2095	warn $@;	2411	warn $@;
2096	warn "error while reloading, exiting.";	2412	warn "error while reloading, exiting.";
2097	exit 1;	2413	exit 1;
2098	}	2414	}
2099		2415
2100	warn "reloaded successfully";	2416	warn "reloaded";
2101	};	2417	};
2102		2418
2103	#############################################################################	2419	our $RELOAD_WATCHER; # used only during reload
2104
2105	unless ($LINK_MAP) {
2106	$LINK_MAP = cf::map::new;
2107
2108	$LINK_MAP->width (41);
2109	$LINK_MAP->height (41);
2110	$LINK_MAP->alloc;
2111	$LINK_MAP->path ("{link}");
2112	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2113	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2114
2115	# dirty hack because... archetypes are not yet loaded
2116	Event->timer (
2117	after => 2,
2118	cb => sub {
2119	$_[0]->w->cancel;
2120
2121	# provide some exits "home"
2122	my $exit = cf::object::new "exit";
2123
2124	$exit->slaying ($EMERGENCY_POSITION->[0]);
2125	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2126	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2127
2128	$LINK_MAP->insert ($exit->clone, 19, 19);
2129	$LINK_MAP->insert ($exit->clone, 19, 20);
2130	$LINK_MAP->insert ($exit->clone, 19, 21);
2131	$LINK_MAP->insert ($exit->clone, 20, 19);
2132	$LINK_MAP->insert ($exit->clone, 20, 21);
2133	$LINK_MAP->insert ($exit->clone, 21, 19);
2134	$LINK_MAP->insert ($exit->clone, 21, 20);
2135	$LINK_MAP->insert ($exit->clone, 21, 21);
2136
2137	$exit->destroy;
2138	});
2139
2140	$LINK_MAP->{deny_save} = 1;
2141	$LINK_MAP->{deny_reset} = 1;
2142
2143	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2144	}
2145
2146	register "<global>", __PACKAGE__;
2147		2420
2148	register_command "reload" => sub {	2421	register_command "reload" => sub {
2149	my ($who, $arg) = @_;	2422	my ($who, $arg) = @_;
2150		2423
2151	if ($who->flag (FLAG_WIZ)) {	2424	if ($who->flag (FLAG_WIZ)) {
2152	$who->message ("start of reload.");	2425	$who->message ("reloading server.");
		2426
		2427	# doing reload synchronously and two reloads happen back-to-back,
		2428	# coro crashes during coro_state_free->destroy here.
		2429
		2430	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2153	reload;	2431	reload;
2154	$who->message ("end of reload.");	2432	undef $RELOAD_WATCHER;
		2433	});
2155	}	2434	}
2156	};	2435	};
2157		2436
2158	unshift @INC, $LIBDIR;	2437	unshift @INC, $LIBDIR;
		2438
		2439	my $bug_warning = 0;
2159		2440
2160	$TICK_WATCHER = Event->timer (	2441	$TICK_WATCHER = Event->timer (
2161	reentrant => 0,	2442	reentrant => 0,
		2443	parked => 1,
2162	prio => 0,	2444	prio => 0,
2163	at => $NEXT_TICK || $TICK,	2445	at => $NEXT_TICK || $TICK,
2164	data => WF_AUTOCANCEL,	2446	data => WF_AUTOCANCEL,
2165	cb => sub {	2447	cb => sub {
2166	unless ($FREEZE) {	2448	if ($Coro::current != $Coro::main) {
		2449	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2450	unless ++$bug_warning > 10;
		2451	return;
		2452	}
		2453
		2454	$NOW = Event::time;
		2455
2167	cf::server_tick; # one server iteration	2456	cf::server_tick; # one server iteration
2168	$RUNTIME += $TICK;	2457	$RUNTIME += $TICK;
2169	}
2170
2171	$NEXT_TICK += $TICK;	2458	$NEXT_TICK += $TICK;
		2459
		2460	$WAIT_FOR_TICK->broadcast;
		2461	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2172		2462
2173	# if we are delayed by four ticks or more, skip them all	2463	# if we are delayed by four ticks or more, skip them all
2174	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2464	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2175		2465
2176	$TICK_WATCHER->at ($NEXT_TICK);	2466	$TICK_WATCHER->at ($NEXT_TICK);
…		…
2178	},	2468	},
2179	);	2469	);
2180		2470
2181	IO::AIO::max_poll_time $TICK * 0.2;	2471	IO::AIO::max_poll_time $TICK * 0.2;
2182		2472
2183	Event->io (	2473	$AIO_POLL_WATCHER = Event->io (
2184	fd => IO::AIO::poll_fileno,	2474	fd => IO::AIO::poll_fileno,
2185	poll => 'r',	2475	poll => 'r',
2186	prio => 5,	2476	prio => 5,
2187	data => WF_AUTOCANCEL,	2477	data => WF_AUTOCANCEL,
2188	cb => \&IO::AIO::poll_cb,	2478	cb => \&IO::AIO::poll_cb,
2189	);	2479	);
2190		2480
2191	Event->timer (	2481	$WRITE_RUNTIME_WATCHER = Event->timer (
2192	data => WF_AUTOCANCEL,	2482	data => WF_AUTOCANCEL,
2193	after => 0,	2483	after => 1,
2194	interval => 10,	2484	interval => 10,
2195	cb => sub {	2485	prio => 6, # keep it lowest so it acts like a watchdog
2196	(Coro::unblock_sub {	2486	cb => Coro::unblock_sub {
2197	write_runtime	2487	write_runtime
2198	or warn "ERROR: unable to write runtime file: $!";	2488	or warn "ERROR: unable to write runtime file: $!";
2199	})->();
2200	},	2489	},
2201	);	2490	);
2202		2491
2203	END { cf::emergency_save }	2492	END { cf::emergency_save }
2204		2493

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