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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC vs.
Revision 1.189 by root, Sun Jan 21 21:28:27 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
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	86	our $EMERGENCY_POSITION;
77		87
78	#############################################################################	88	#############################################################################
79		89
80	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
…		…
105		115
106	=item %cf::CFG	116	=item %cf::CFG
107		117
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	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.
110		127
111	=back	128	=back
112		129
113	=cut	130	=cut
114		131
…		…
118	utf8::encode $msg;	135	utf8::encode $msg;
119		136
120	$msg .= "\n"	137	$msg .= "\n"
121	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
122		139
123	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
124	};	141	};
125	}	142	}
126		143
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
146		163
147	$Event::DIED = sub {	164	$Event::DIED = sub {
148	warn "error in event callback: @_";	165	warn "error in event callback: @_";
149	};	166	};
150		167
151	my %ext_pkg;
152	my @exts;
153	my @hook;
154
155	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
156		169
157	=over 4	170	=over 4
158		171
		172	=item dumpval $ref
		173
159	=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	}
160		194
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
162		196
163	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
164		198
…		…
180	sub to_json($) {	214	sub to_json($) {
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
183	}	217	}
184		218
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	219	=item cf::lock_wait $string
208		220
209	Wait until the given lock is available. See cf::lock_acquire.	221	Wait until the given lock is available. See cf::lock_acquire.
210		222
211	=item my $lock = cf::lock_acquire $string	223	=item my $lock = cf::lock_acquire $string
212		224
213	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
214	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,
215	for example when the coroutine gets canceled), the lock is automatically	227	for example when the coroutine gets canceled), the lock is automatically
216	returned.	228	returned.
217		229
218	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
219	uses map_find and load_map uses map_load).	231	uses map_find and cf::map::load uses map_load).
220		232
221	=cut	233	=cut
222		234
223	our %LOCK;	235	our %LOCK;
224		236
…		…
238	# wait, to be sure we are not locked	250	# wait, to be sure we are not locked
239	lock_wait $key;	251	lock_wait $key;
240		252
241	$LOCK{$key} = [];	253	$LOCK{$key} = [];
242		254
243	cf::guard {	255	Coro::guard {
244	# wake up all waiters, to be on the safe side	256	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	257	$_->ready for @{ delete $LOCK{$key} };
246	}	258	}
247	}	259	}
248		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	$guard
		271	}
		272
249	=item cf::async { BLOCK }	273	=item cf::async { BLOCK }
250		274
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	275	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
253		278
254	=cut	279	=cut
255		280
256	sub async(&) {	281	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		282
265	=item cf::sync_job { BLOCK }	283	=item cf::sync_job { BLOCK }
266		284
267	The design of crossfire+ requires that the main coro ($Coro::main) is	285	The design of crossfire+ requires that the main coro ($Coro::main) is
268	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
…		…
282	# this is the main coro, too bad, we have to block	300	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	301	# till the operation succeeds, freezing the server :/
284		302
285	# TODO: use suspend/resume instead	303	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	304	# (but this is cancel-safe)
287	local $FREEZE = 1;	305	my $freeze_guard = freeze_mainloop;
288		306
289	my $busy = 1;	307	my $busy = 1;
290	my @res;	308	my @res;
291		309
292	(Coro::async {	310	(async {
293	@res = eval { $job->() };	311	@res = eval { $job->() };
294	warn $@ if $@;	312	warn $@ if $@;
295	undef $busy;	313	undef $busy;
296	})->prio (Coro::PRIO_MAX);	314	})->prio (Coro::PRIO_MAX);
297		315
298	while ($busy) {	316	while ($busy) {
299	Coro::cede_notself;	317	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	318	}
302		319
303	wantarray ? @res : $res[0]	320	wantarray ? @res : $res[0]
304	} else {	321	} else {
305	# we are in another coroutine, how wonderful, everything just works	322	# we are in another coroutine, how wonderful, everything just works
306		323
307	$job->()	324	$job->()
308	}	325	}
309	}	326	}
310		327
311	=item $coro = cf::coro { BLOCK }	328	=item $coro = cf::async_ext { BLOCK }
312		329
313	Creates and returns a new coro. This coro is automcatially being canceled	330	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	331	extension calling this is being unloaded.
315		332
316	=cut	333	=cut
317		334
318	sub coro(&) {	335	sub async_ext(&) {
319	my $cb = shift;	336	my $cb = shift;
320		337
321	my $coro = &cf::async ($cb);	338	my $coro = &Coro::async ($cb);
322		339
323	$coro->on_destroy (sub {	340	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	341	delete $EXT_CORO{$coro+0};
325	});	342	});
326	$EXT_CORO{$coro+0} = $coro;	343	$EXT_CORO{$coro+0} = $coro;
…		…
332	my $runtime = cf::localdir . "/runtime";	349	my $runtime = cf::localdir . "/runtime";
333		350
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
335	or return;	352	or return;
336		353
		354	my $value = $cf::RUNTIME + 90 + 10;
337	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
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0	358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;	359	and return;
340		360
341	aio_fsync $fh	361	aio_fsync $fh
342	and return;	362	and return;
…		…
351	}	371	}
352		372
353	=back	373	=back
354		374
355	=cut	375	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($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		376
477	#############################################################################	377	#############################################################################
478		378
479	=head2 ATTACHABLE OBJECTS	379	=head2 ATTACHABLE OBJECTS
480		380
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	506	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	507	our @CB_MAP = ();
608		508
609	my %attachment;	509	my %attachment;
610		510
		511	sub cf::attachable::thawer_merge {
		512	# simply override everything except _meta
		513	local $_[0]{_meta};
		514	%{$_[0]} = %{$_[1]};
		515	}
		516
611	sub _attach_cb($$$$) {	517	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	518	my ($registry, $event, $prio, $cb) = @_;
613		519
614	use sort 'stable';	520	use sort 'stable';
615		521
…		…
786	# object support	692	# object support
787		693
788	sub reattach {	694	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	695	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	696	my ($obj) = @_;
		697
		698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		699
792	my $registry = $obj->registry;	700	my $registry = $obj->registry;
793		701
794	@$registry = ();	702	@$registry = ();
795		703
…		…
927	=cut	835	=cut
928		836
929	sub register_extcmd {	837	sub register_extcmd {
930	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
931		839
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	840	$EXTCMD{$name} = $cb;
936	}	841	}
937		842
938	cf::player->attach (	843	cf::player->attach (
939	on_command => sub {	844	on_command => sub {
940	my ($pl, $name, $params) = @_;	845	my ($pl, $name, $params) = @_;
…		…
953		858
954	my $msg = eval { from_json $buf };	859	my $msg = eval { from_json $buf };
955		860
956	if (ref $msg) {	861	if (ref $msg) {
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	863	if (my %reply = $cb->($pl, $msg)) {
959	$pl->ext_reply ($msg->{msgid}, %reply);	864	$pl->ext_reply ($msg->{msgid}, %reply);
960	}	865	}
961	}	866	}
962	} else {	867	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
965		870
966	cf::override;	871	cf::override;
967	},	872	},
968	);	873	);
969		874
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	875	sub load_extension {
977	my ($path) = @_;	876	my ($path) = @_;
978		877
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
980	my $base = $1;	879	my $base = $1;
981	my $pkg = $1;	880	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;	881	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";	882	$pkg = "ext::$pkg";
984		883
985	warn "loading '$path' into '$pkg'\n";	884	warn "... loading '$path' into '$pkg'\n";
986		885
987	open my $fh, "<:utf8", $path	886	open my $fh, "<:utf8", $path
988	or die "$path: $!";	887	or die "$path: $!";
989		888
990	my $source =	889	my $source =
991	"package $pkg; use strict; use utf8;\n"	890	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"	891	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })	892	. (do { local $/; <$fh> })
994	. "\n};\n1";	893	. "\n};\n1";
995		894
996	eval $source	895	unless (eval $source) {
997	or die $@ ? "$path: $@\n"	896	my $msg = $@ ? "$path: $@\n"
998	: "extension disabled.\n";	897	: "extension disabled.\n";
999		898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1000	push @exts, $pkg;	899	warn $@;
1001	$ext_pkg{$base} = $pkg;	900	warn "mandatory extension failed to load, exiting.\n";
1002		901	exit 1;
1003	# no strict 'refs';	902	}
1004	# @{"$pkg\::ISA"} = ext::;	903	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	# }	904	}
1019		905
1020	# remove commands	906	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	}	907	}
1045		908
1046	sub load_extensions {	909	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {	910	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;	911	next unless -r $ext;
…		…
1052	} or warn "$ext not loaded: $@";	915	} or warn "$ext not loaded: $@";
1053	}	916	}
1054	}	917	}
1055		918
1056	#############################################################################	919	#############################################################################
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		920
1094	=head2 CORE EXTENSIONS	921	=head2 CORE EXTENSIONS
1095		922
1096	Functions and methods that extend core crossfire objects.	923	Functions and methods that extend core crossfire objects.
1097		924
		925	=cut
		926
		927	package cf::player;
		928
		929	use Coro::AIO;
		930
1098	=head3 cf::player	931	=head3 cf::player
1099		932
1100	=over 4	933	=over 4
1101		934
1102	=item cf::player::exists $login	935	=item cf::player::find $login
1103		936
1104	Returns true when the given account exists.	937	Returns the given player object, loading it if necessary (might block).
1105		938
1106	=cut	939	=cut
1107		940
1108	sub cf::player::exists($) {	941	sub playerdir($) {
1109	cf::player::find $_[0]	942	cf::localdir
1110	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
1111	}	1088	}
1112		1089
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1090	=item $player->ext_reply ($msgid, $msgtype, %msg)
1114		1091
1115	Sends an ext reply to the player.	1092	Sends an ext reply to the player.
1116		1093
1117	=cut	1094	=cut
1118		1095
1119	sub cf::player::ext_reply($$$%) {	1096	sub ext_reply($$$%) {
1120	my ($self, $id, %msg) = @_;	1097	my ($self, $id, %msg) = @_;
1121		1098
1122	$msg{msgid} = $id;	1099	$msg{msgid} = $id;
1123		1100
1124	$self->send ("ext " . to_json \%msg);	1101	$self->send ("ext " . cf::to_json \%msg);
1125	}	1102	}
		1103
		1104	package cf;
1126		1105
1127	=back	1106	=back
1128		1107
1129		1108
1130	=head3 cf::map	1109	=head3 cf::map
…		…
1136	package cf::map;	1115	package cf::map;
1137		1116
1138	use Fcntl;	1117	use Fcntl;
1139	use Coro::AIO;	1118	use Coro::AIO;
1140		1119
		1120	use overload
		1121	'""' => \&as_string,
		1122	fallback => 1;
		1123
1141	our $MAX_RESET = 7200;	1124	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1125	our $DEFAULT_RESET = 3000;
1143		1126
1144	sub generate_random_map {	1127	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1128	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1129	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1130	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1134	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1135	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$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},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})	1141	(cf::region::find $rmp->{region}), $rmp->{custom}
		1142	)
		1143	}
		1144
		1145	=item cf::map->register ($regex, $prio)
		1146
		1147	Register a handler for the map path matching the given regex at the
		1148	givne priority (higher is better, built-in handlers have priority 0, the
		1149	default).
		1150
		1151	=cut
		1152
		1153	sub register {
		1154	my (undef, $regex, $prio) = @_;
		1155	my $pkg = caller;
		1156
		1157	no strict;
		1158	push @{"$pkg\::ISA"}, __PACKAGE__;
		1159
		1160	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1161	}
		1162
		1163	# also paths starting with '/'
		1164	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1165
		1166	sub thawer_merge {
		1167	my ($self, $merge) = @_;
		1168
		1169	# we have to keep some variables in memory intact
		1170	local $self->{path};
		1171	local $self->{load_path};
		1172	local $self->{deny_save};
		1173	local $self->{deny_reset};
		1174
		1175	$self->SUPER::thawer_merge ($merge);
		1176	}
		1177
		1178	sub normalise {
		1179	my ($path, $base) = @_;
		1180
		1181	# map plan:
		1182	#
		1183	# /! non-realised random map exit (special hack!)
		1184	# {... are special paths that are not being touched
		1185	# ?xxx/... are special absolute paths
		1186	# ?random/... random maps
		1187	# /... normal maps
		1188	# ~user/... per-player map of a specific user
		1189
		1190	$path =~ s/$PATH_SEP/\//go;
		1191
		1192	# treat it as relative path if it starts with
		1193	# something that looks reasonable
		1194	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1195	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1196
		1197	$base =~ s{[^/]+/?$}{};
		1198	$path = "$base/$path";
		1199	}
		1200
		1201	for ($path) {
		1202	redo if s{//}{/};
		1203	redo if s{/\.?/}{/};
		1204	redo if s{/[^/]+/\.\./}{/};
		1205	}
		1206
		1207	$path
		1208	}
		1209
		1210	sub new_from_path {
		1211	my (undef, $path, $base) = @_;
		1212
		1213	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1214
		1215	$path = normalise $path, $base;
		1216
		1217	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1218	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1219	my $self = bless cf::map::new, $pkg;
		1220	$self->{path} = $path; $self->path ($path);
		1221	$self->init; # pass $1 etc.
		1222	return $self;
		1223	}
		1224	}
		1225
		1226	Carp::carp "unable to resolve path '$path'.";
		1227	()
		1228	}
		1229
		1230	sub init {
		1231	my ($self) = @_;
		1232
		1233	$self
		1234	}
		1235
		1236	sub as_string {
		1237	my ($self) = @_;
		1238
		1239	"$self->{path}"
		1240	}
		1241
		1242	# the displayed name, this is a one way mapping
		1243	sub visible_name {
		1244	&as_string
		1245	}
		1246
		1247	# the original (read-only) location
		1248	sub load_path {
		1249	my ($self) = @_;
		1250
		1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1252	}
		1253
		1254	# the temporary/swap location
		1255	sub save_path {
		1256	my ($self) = @_;
		1257
		1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1260	}
		1261
		1262	# the unique path, undef == no special unique path
		1263	sub uniq_path {
		1264	my ($self) = @_;
		1265
		1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1161	}	1268	}
1162		1269
1163	# and all this just because we cannot iterate over	1270	# and all this just because we cannot iterate over
1164	# all maps in C++...	1271	# all maps in C++...
1165	sub change_all_map_light {	1272	sub change_all_map_light {
…		…
1167		1274
1168	$_->change_map_light ($change)	1275	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1276	for grep $_->outdoor, values %cf::MAP;
1170	}	1277	}
1171		1278
		1279	sub unlink_save {
		1280	my ($self) = @_;
		1281
		1282	utf8::encode (my $save = $self->save_path);
		1283	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1284	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1285	}
		1286
1172	sub try_load_header($) {	1287	sub load_header_from($) {
1173	my ($path) = @_;	1288	my ($self, $path) = @_;
1174		1289
1175	utf8::encode $path;	1290	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1291	aio_open $path, O_RDONLY, 0
1177	or return;	1292	or return;
1178		1293
1179	my $map = cf::map::new	1294	$self->_load_header ($path)
1180	or return;	1295	or return;
1181		1296
1182	$map->load_header ($path)	1297	$self->{load_path} = $path;
		1298
		1299	1
		1300	}
		1301
		1302	sub load_header_orig {
		1303	my ($self) = @_;
		1304
		1305	$self->load_header_from ($self->load_path)
		1306	}
		1307
		1308	sub load_header_temp {
		1309	my ($self) = @_;
		1310
		1311	$self->load_header_from ($self->save_path)
		1312	}
		1313
		1314	sub prepare_temp {
		1315	my ($self) = @_;
		1316
		1317	$self->last_access ((delete $self->{last_access})
		1318	|| $cf::RUNTIME); #d#
		1319	# safety
		1320	$self->{instantiate_time} = $cf::RUNTIME
		1321	if $self->{instantiate_time} > $cf::RUNTIME;
		1322	}
		1323
		1324	sub prepare_orig {
		1325	my ($self) = @_;
		1326
		1327	$self->{load_original} = 1;
		1328	$self->{instantiate_time} = $cf::RUNTIME;
		1329	$self->last_access ($cf::RUNTIME);
		1330	$self->instantiate;
		1331	}
		1332
		1333	sub load_header {
		1334	my ($self) = @_;
		1335
		1336	if ($self->load_header_temp) {
		1337	$self->prepare_temp;
		1338	} else {
		1339	$self->load_header_orig
1183	or return;	1340	or return;
		1341	$self->prepare_orig;
		1342	}
1184		1343
1185	$map->{load_path} = $path;	1344	1
1186
1187	$map
1188	}	1345	}
1189		1346
1190	sub find_map;	1347	sub find;
1191	sub find_map {	1348	sub find {
1192	my ($path, $origin) = @_;	1349	my ($path, $origin) = @_;
1193		1350
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1351	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1352
1199	cf::lock_wait "map_find:$key";	1353	cf::lock_wait "map_find:$path";
1200		1354
1201	$cf::MAP{$key} || do {	1355	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1356	my $guard = cf::lock_acquire "map_find:$path";
1203		1357	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	# safety
1209	$map->{instantiate_time} = $cf::RUNTIME
1210	if $map->{instantiate_time} > $cf::RUNTIME;
1211	} else {
1212	if (my $rmp = $path->random_map_params) {
1213	$map = generate_random_map $key, $rmp;
1214	} else {
1215	$map = try_load_header $path->load_path;
1216	}
1217
1218	$map or return;	1358	or return;
1219		1359
1220	$map->{load_original} = 1;
1221	$map->{instantiate_time} = $cf::RUNTIME;
1222	$map->instantiate;
1223
1224	# per-player maps become, after loading, normal maps
1225	$map->per_player (0) if $path->{user_rel};
1226	}
1227
1228	$map->path ($key);
1229	$map->{path} = $path;
1230	$map->{last_save} = $cf::RUNTIME;	1360	$map->{last_save} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);	1361
		1362	$map->load_header
		1363	or return;
1232		1364
1233	if ($map->should_reset) {	1365	if ($map->should_reset) {
		1366	# doing this can freeze the server in a sync job, obviously
		1367	#$cf::WAIT_FOR_TICK->wait;
1234	$map->reset;	1368	$map->reset;
1235	undef $guard;	1369	undef $guard;
1236	$map = find_map $path	1370	$map = find $path
1237	or return;	1371	or return;
1238	}	1372	}
1239		1373
1240	$cf::MAP{$key} = $map	1374	$cf::MAP{$path} = $map
1241	}	1375	}
1242	}	1376	}
		1377
		1378	sub pre_load { }
		1379	sub post_load { }
1243		1380
1244	sub load {	1381	sub load {
1245	my ($self) = @_;	1382	my ($self) = @_;
1246		1383
1247	my $path = $self->{path};	1384	my $path = $self->{path};
1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1385	my $guard = cf::lock_acquire "map_load:$path";
1249		1386
1250	return if $self->in_memory != cf::MAP_SWAPPED;	1387	return if $self->in_memory != cf::MAP_SWAPPED;
1251		1388
1252	$self->in_memory (cf::MAP_LOADING);	1389	$self->in_memory (cf::MAP_LOADING);
1253		1390
1254	$self->alloc;	1391	$self->alloc;
		1392
		1393	$self->pre_load;
		1394
1255	$self->load_objects ($self->{load_path}, 1)	1395	$self->_load_objects ($self->{load_path}, 1)
1256	or return;	1396	or return;
1257		1397
1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1398	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1259	if delete $self->{load_original};	1399	if delete $self->{load_original};
1260		1400
1261	if (my $uniq = $path->uniq_path) {	1401	if (my $uniq = $self->uniq_path) {
1262	utf8::encode $uniq;	1402	utf8::encode $uniq;
1263	if (aio_open $uniq, O_RDONLY, 0) {	1403	if (aio_open $uniq, O_RDONLY, 0) {
1264	$self->clear_unique_items;	1404	$self->clear_unique_items;
1265	$self->load_objects ($uniq, 0);	1405	$self->_load_objects ($uniq, 0);
1266	}	1406	}
1267	}	1407	}
		1408
		1409	Coro::cede;
1268		1410
1269	# now do the right thing for maps	1411	# now do the right thing for maps
1270	$self->link_multipart_objects;	1412	$self->link_multipart_objects;
1271		1413
1272	if ($self->{path}->is_style_map) {	1414	unless ($self->{deny_activate}) {
1273	$self->{deny_save} = 1;	1415	$self->decay_objects;
1274	$self->{deny_reset} = 1;
1275	} else {
1276	$self->fix_auto_apply;	1416	$self->fix_auto_apply;
1277	$self->decay_objects;
1278	$self->update_buttons;	1417	$self->update_buttons;
		1418	Coro::cede;
1279	$self->set_darkness_map;	1419	$self->set_darkness_map;
1280	$self->difficulty ($self->estimate_difficulty)	1420	$self->difficulty ($self->estimate_difficulty)
1281	unless $self->difficulty;	1421	unless $self->difficulty;
		1422	Coro::cede;
1282	$self->activate;	1423	$self->activate;
1283	}	1424	}
1284		1425
		1426	$self->post_load;
		1427
1285	$self->in_memory (cf::MAP_IN_MEMORY);	1428	$self->in_memory (cf::MAP_IN_MEMORY);
1286	}	1429	}
1287		1430
1288	sub load_map_sync {	1431	sub customise_for {
		1432	my ($self, $ob) = @_;
		1433
		1434	return find "~" . $ob->name . "/" . $self->{path}
		1435	if $self->per_player;
		1436
		1437	$self
		1438	}
		1439
		1440	# find and load all maps in the 3x3 area around a map
		1441	sub load_diag {
		1442	my ($map) = @_;
		1443
		1444	my @diag; # diagonal neighbours
		1445
		1446	for (0 .. 3) {
		1447	my $neigh = $map->tile_path ($_)
		1448	or next;
		1449	$neigh = find $neigh, $map
		1450	or next;
		1451	$neigh->load;
		1452
		1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1455	}
		1456
		1457	for (@diag) {
		1458	my $neigh = find @$_
		1459	or next;
		1460	$neigh->load;
		1461	}
		1462	}
		1463
		1464	sub find_sync {
1289	my ($path, $origin) = @_;	1465	my ($path, $origin) = @_;
1290		1466
1291	#warn "load_map_sync<$path, $origin>\n";#d#	1467	cf::sync_job { find $path, $origin }
		1468	}
1292		1469
1293	cf::sync_job {	1470	sub do_load_sync {
1294	my $map = cf::map::find_map $path, $origin	1471	my ($map) = @_;
1295	or return;	1472
		1473	cf::sync_job { $map->load };
		1474	}
		1475
		1476	our %MAP_PREFETCH;
		1477	our $MAP_PREFETCHER = undef;
		1478
		1479	sub find_async {
		1480	my ($path, $origin) = @_;
		1481
		1482	$path = normalise $path, $origin && $origin->{path};
		1483
		1484	if (my $map = $cf::MAP{$path}) {
		1485	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1486	}
		1487
		1488	undef $MAP_PREFETCH{$path};
		1489	$MAP_PREFETCHER ||= cf::async {
		1490	while (%MAP_PREFETCH) {
		1491	for my $path (keys %MAP_PREFETCH) {
		1492	my $map = find $path
		1493	or next;
1296	$map->load;	1494	$map->load;
1297	$map	1495
		1496	delete $MAP_PREFETCH{$path};
		1497	}
		1498	}
		1499	undef $MAP_PREFETCHER;
1298	}	1500	};
		1501	$MAP_PREFETCHER->prio (6);
		1502
		1503	()
1299	}	1504	}
1300		1505
1301	sub save {	1506	sub save {
1302	my ($self) = @_;	1507	my ($self) = @_;
1303		1508
		1509	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1510
1304	$self->{last_save} = $cf::RUNTIME;	1511	$self->{last_save} = $cf::RUNTIME;
1305		1512
1306	return unless $self->dirty;	1513	return unless $self->dirty;
1307		1514
1308	my $save = $self->{path}->save_path; utf8::encode $save;	1515	my $save = $self->save_path; utf8::encode $save;
1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1516	my $uniq = $self->uniq_path; utf8::encode $uniq;
1310		1517
1311	$self->{load_path} = $save;	1518	$self->{load_path} = $save;
1312		1519
1313	return if $self->{deny_save};	1520	return if $self->{deny_save};
1314		1521
		1522	local $self->{last_access} = $self->last_access;#d#
		1523
		1524	cf::async {
		1525	$_->contr->save for $self->players;
		1526	};
		1527
1315	if ($uniq) {	1528	if ($uniq) {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1529	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1317	$self->save_objects ($uniq, cf::IO_UNIQUES);	1530	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1318	} else {	1531	} else {
1319	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1532	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1320	}	1533	}
1321	}	1534	}
1322		1535
1323	sub swap_out {	1536	sub swap_out {
1324	my ($self) = @_;	1537	my ($self) = @_;
1325		1538
1326	# save first because save cedes	1539	# save first because save cedes
1327	$self->save;	1540	$self->save;
		1541
		1542	my $lock = cf::lock_acquire "map_data:" . $self->path;
1328		1543
1329	return if $self->players;	1544	return if $self->players;
1330	return if $self->in_memory != cf::MAP_IN_MEMORY;	1545	return if $self->in_memory != cf::MAP_IN_MEMORY;
1331	return if $self->{deny_save};	1546	return if $self->{deny_save};
1332		1547
…		…
1336		1551
1337	sub reset_at {	1552	sub reset_at {
1338	my ($self) = @_;	1553	my ($self) = @_;
1339		1554
1340	# TODO: safety, remove and allow resettable per-player maps	1555	# TODO: safety, remove and allow resettable per-player maps
1341	return 1e99 if $self->{path}{user_rel};	1556	return 1e99 if $self->isa ("ext::map_per_player");#d#
1342	return 1e99 if $self->{deny_reset};	1557	return 1e99 if $self->{deny_reset};
1343		1558
1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1559	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1560	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1346		1561
…		…
1351	my ($self) = @_;	1566	my ($self) = @_;
1352		1567
1353	$self->reset_at <= $cf::RUNTIME	1568	$self->reset_at <= $cf::RUNTIME
1354	}	1569	}
1355		1570
1356	sub unlink_save {
1357	my ($self) = @_;
1358
1359	utf8::encode (my $save = $self->{path}->save_path);
1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1362	}
1363
1364	sub rename {
1365	my ($self, $new_path) = @_;
1366
1367	$self->unlink_save;
1368
1369	delete $cf::MAP{$self->path};
1370	$self->{path} = new cf::path $new_path;
1371	$self->path ($self->{path}->as_string);
1372	$cf::MAP{$self->path} = $self;
1373
1374	$self->save;
1375	}
1376
1377	sub reset {	1571	sub reset {
1378	my ($self) = @_;	1572	my ($self) = @_;
1379		1573
		1574	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1575
1380	return if $self->players;	1576	return if $self->players;
1381	return if $self->{path}{user_rel};#d#	1577	return if $self->isa ("ext::map_per_player");#d#
1382		1578
1383	warn "resetting map ", $self->path;#d#	1579	warn "resetting map ", $self->path;#d#
1384		1580
1385	delete $cf::MAP{$self->path};	1581	delete $cf::MAP{$self->path};
		1582
		1583	$self->in_memory (cf::MAP_SWAPPED);
		1584	$self->clear;
1386		1585
1387	$_->clear_links_to ($self) for values %cf::MAP;	1586	$_->clear_links_to ($self) for values %cf::MAP;
1388		1587
1389	$self->unlink_save;	1588	$self->unlink_save;
1390	$self->destroy;	1589	$self->destroy;
…		…
1393	my $nuke_counter = "aaaa";	1592	my $nuke_counter = "aaaa";
1394		1593
1395	sub nuke {	1594	sub nuke {
1396	my ($self) = @_;	1595	my ($self) = @_;
1397		1596
		1597	delete $cf::MAP{$self->path};
		1598
		1599	$self->unlink_save;
		1600
		1601	bless $self, "cf::map";
		1602	delete $self->{deny_reset};
1398	$self->{deny_save} = 1;	1603	$self->{deny_save} = 1;
1399	$self->reset_timeout (1);	1604	$self->reset_timeout (1);
1400	$self->rename ("{nuke}/" . ($nuke_counter++));	1605	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1606
		1607	$cf::MAP{$self->path} = $self;
		1608
1401	$self->reset; # polite request, might not happen	1609	$self->reset; # polite request, might not happen
1402	}	1610	}
1403		1611
1404	sub customise_for {	1612	=item cf::map::unique_maps
1405	my ($map, $ob) = @_;
1406		1613
1407	if ($map->per_player) {	1614	Returns an arrayref of paths of all shared maps that have
1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1615	instantiated unique items. May block.
1409	}
1410		1616
1411	$map	1617	=cut
1412	}
1413		1618
1414	sub emergency_save {	1619	sub unique_maps() {
1415	local $cf::FREEZE = 1;	1620	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1621	or return;
1416		1622
1417	warn "enter emergency map save\n";	1623	my @paths;
1418		1624
1419	cf::sync_job {	1625	for (@$files) {
1420	warn "begin emergency map save\n";	1626	utf8::decode $_;
1421	$_->save for values %cf::MAP;	1627	next if /\.pst$/;
		1628	next unless /^$PATH_SEP/o;
		1629
		1630	s/\.map$//;
		1631	push @paths, $_;
1422	};	1632	}
1423		1633
1424	warn "end emergency map save\n";	1634	\@paths
1425	}	1635	}
1426		1636
1427	package cf;	1637	package cf;
1428		1638
1429	=back	1639	=back
1430		1640
		1641	=head3 cf::object
		1642
		1643	=cut
		1644
		1645	package cf::object;
		1646
		1647	=over 4
		1648
		1649	=item $ob->inv_recursive
		1650
		1651	Returns the inventory of the object _and_ their inventories, recursively.
		1652
		1653	=cut
		1654
		1655	sub inv_recursive_;
		1656	sub inv_recursive_ {
		1657	map { $_, inv_recursive_ $_->inv } @_
		1658	}
		1659
		1660	sub inv_recursive {
		1661	inv_recursive_ inv $_[0]
		1662	}
		1663
		1664	package cf;
		1665
		1666	=back
1431		1667
1432	=head3 cf::object::player	1668	=head3 cf::object::player
1433		1669
1434	=over 4	1670	=over 4
1435		1671
…		…
1475		1711
1476	=item $player_object->enter_link	1712	=item $player_object->enter_link
1477		1713
1478	Freezes the player and moves him/her to a special map (C<{link}>).	1714	Freezes the player and moves him/her to a special map (C<{link}>).
1479		1715
1480	The player should be reaosnably safe there for short amounts of time. You	1716	The player should be reasonably safe there for short amounts of time. You
1481	I<MUST> call C<leave_link> as soon as possible, though.	1717	I<MUST> call C<leave_link> as soon as possible, though.
1482		1718
		1719	Will never block.
		1720
1483	=item $player_object->leave_link ($map, $x, $y)	1721	=item $player_object->leave_link ($map, $x, $y)
1484		1722
1485	Moves the player out of the specila link map onto the given map. If the	1723	Moves the player out of the special C<{link}> map onto the specified
1486	map is not valid (or omitted), the player will be moved back to the	1724	map. If the map is not valid (or omitted), the player will be moved back
1487	location he/she was before the call to C<enter_link>, or, if that fails,	1725	to the location he/she was before the call to C<enter_link>, or, if that
1488	to the emergency map position.	1726	fails, to the emergency map position.
1489		1727
1490	Might block.	1728	Might block.
1491		1729
1492	=cut	1730	=cut
		1731
		1732	sub link_map {
		1733	unless ($LINK_MAP) {
		1734	$LINK_MAP = cf::map::find "{link}"
		1735	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1736	$LINK_MAP->load;
		1737	}
		1738
		1739	$LINK_MAP
		1740	}
1493		1741
1494	sub cf::object::player::enter_link {	1742	sub cf::object::player::enter_link {
1495	my ($self) = @_;	1743	my ($self) = @_;
1496		1744
1497	$self->deactivate_recursive;	1745	$self->deactivate_recursive;
1498		1746
1499	return if $self->map == $LINK_MAP;	1747	return if UNIVERSAL::isa $self->map, "ext::map_link";
1500		1748
1501	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1749	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1502	if $self->map;	1750	if $self->map;
1503		1751
1504	$self->enter_map ($LINK_MAP, 20, 20);	1752	$self->enter_map ($LINK_MAP || link_map, 20, 20);
1505	}	1753	}
1506		1754
1507	sub cf::object::player::leave_link {	1755	sub cf::object::player::leave_link {
1508	my ($self, $map, $x, $y) = @_;	1756	my ($self, $map, $x, $y) = @_;
1509		1757
1510	my $link_pos = delete $self->{_link_pos};	1758	my $link_pos = delete $self->{_link_pos};
1511		1759
1512	unless ($map) {	1760	unless ($map) {
1513	# restore original map position	1761	# restore original map position
1514	($map, $x, $y) = @{ $link_pos || [] };	1762	($map, $x, $y) = @{ $link_pos || [] };
1515	$map = cf::map::find_map $map;	1763	$map = cf::map::find $map;
1516		1764
1517	unless ($map) {	1765	unless ($map) {
1518	($map, $x, $y) = @$EMERGENCY_POSITION;	1766	($map, $x, $y) = @$EMERGENCY_POSITION;
1519	$map = cf::map::find_map $map	1767	$map = cf::map::find $map
1520	or die "FATAL: cannot load emergency map\n";	1768	or die "FATAL: cannot load emergency map\n";
1521	}	1769	}
1522	}	1770	}
1523		1771
1524	($x, $y) = (-1, -1)	1772	($x, $y) = (-1, -1)
…		…
1527	# use -1 or undef as default coordinates, not 0, 0	1775	# use -1 or undef as default coordinates, not 0, 0
1528	($x, $y) = ($map->enter_x, $map->enter_y)	1776	($x, $y) = ($map->enter_x, $map->enter_y)
1529	if $x <=0 && $y <= 0;	1777	if $x <=0 && $y <= 0;
1530		1778
1531	$map->load;	1779	$map->load;
		1780	$map->load_diag;
1532		1781
		1782	return unless $self->contr->active;
1533	$self->activate_recursive;	1783	$self->activate_recursive;
1534	$self->enter_map ($map, $x, $y);	1784	$self->enter_map ($map, $x, $y);
1535	}	1785	}
1536		1786
1537	cf::player->attach (	1787	cf::player->attach (
…		…
1550		1800
1551	# try to abort aborted map switching on player login :)	1801	# try to abort aborted map switching on player login :)
1552	# should happen only on crashes	1802	# should happen only on crashes
1553	if ($pl->ob->{_link_pos}) {	1803	if ($pl->ob->{_link_pos}) {
1554	$pl->ob->enter_link;	1804	$pl->ob->enter_link;
1555	cf::async {	1805	(async {
1556	# we need this sleep as the login has a concurrent enter_exit running	1806	# we need this sleep as the login has a concurrent enter_exit running
1557	# and this sleep increases chances of the player not ending up in scorn	1807	# and this sleep increases chances of the player not ending up in scorn
		1808	$pl->ob->reply (undef,
		1809	"There was an internal problem at your last logout, "
		1810	. "the server will try to bring you to your intended destination in a second.",
		1811	cf::NDI_RED);
1558	Coro::Timer::sleep 1;	1812	Coro::Timer::sleep 1;
1559	$pl->ob->leave_link;	1813	$pl->ob->leave_link;
1560	};	1814	})->prio (2);
1561	}	1815	}
1562	},	1816	},
1563	);	1817	);
1564		1818
1565	=item $player_object->goto_map ($path, $x, $y)	1819	=item $player_object->goto ($path, $x, $y)
1566		1820
1567	=cut	1821	=cut
1568		1822
1569	sub cf::object::player::goto_map {	1823	sub cf::object::player::goto {
1570	my ($self, $path, $x, $y) = @_;	1824	my ($self, $path, $x, $y) = @_;
1571		1825
1572	$self->enter_link;	1826	$self->enter_link;
1573		1827
1574	(cf::async {	1828	(async {
1575	$path = new cf::path $path;
1576
1577	my $map = cf::map::find_map $path->as_string;	1829	my $map = cf::map::find $path;
1578	$map = $map->customise_for ($self) if $map;	1830	$map = $map->customise_for ($self) if $map;
1579		1831
1580	# warn "entering ", $map->path, " at ($x, $y)\n"	1832	# warn "entering ", $map->path, " at ($x, $y)\n"
1581	# if $map;	1833	# if $map;
1582		1834
1583	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1835	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1584		1836
1585	$self->leave_link ($map, $x, $y);	1837	$self->leave_link ($map, $x, $y);
1586	})->prio (1);	1838	})->prio (1);
1587	}	1839	}
1588		1840
…		…
1592		1844
1593	sub parse_random_map_params {	1845	sub parse_random_map_params {
1594	my ($spec) = @_;	1846	my ($spec) = @_;
1595		1847
1596	my $rmp = { # defaults	1848	my $rmp = { # defaults
1597	xsize => 10,	1849	xsize => (cf::rndm 15, 40),
1598	ysize => 10,	1850	ysize => (cf::rndm 15, 40),
		1851	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1852	#layout => string,
1599	};	1853	};
1600		1854
1601	for (split /\n/, $spec) {	1855	for (split /\n/, $spec) {
1602	my ($k, $v) = split /\s+/, $_, 2;	1856	my ($k, $v) = split /\s+/, $_, 2;
1603		1857
…		…
1607	$rmp	1861	$rmp
1608	}	1862	}
1609		1863
1610	sub prepare_random_map {	1864	sub prepare_random_map {
1611	my ($exit) = @_;	1865	my ($exit) = @_;
		1866
		1867	my $guard = cf::lock_acquire "exit_prepare:$exit";
1612		1868
1613	# all this does is basically replace the /! path by	1869	# all this does is basically replace the /! path by
1614	# a new random map path (?random/...) with a seed	1870	# a new random map path (?random/...) with a seed
1615	# that depends on the exit object	1871	# that depends on the exit object
1616		1872
…		…
1625		1881
1626	$rmp->{random_seed} ||= $exit->random_seed;	1882	$rmp->{random_seed} ||= $exit->random_seed;
1627		1883
1628	my $data = cf::to_json $rmp;	1884	my $data = cf::to_json $rmp;
1629	my $md5 = Digest::MD5::md5_hex $data;	1885	my $md5 = Digest::MD5::md5_hex $data;
		1886	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1630		1887
1631	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1632	aio_write $fh, 0, (length $data), $data, 0;	1889	aio_write $fh, 0, (length $data), $data, 0;
		1890	undef $fh;
		1891	aio_rename "$meta~", $meta;
1633		1892
1634	$exit->slaying ("?random/$md5");	1893	$exit->slaying ("?random/$md5");
1635	$exit->msg (undef);	1894	$exit->msg (undef);
1636	}	1895	}
1637	}	1896	}
…		…
1641		1900
1642	return unless $self->type == cf::PLAYER;	1901	return unless $self->type == cf::PLAYER;
1643		1902
1644	$self->enter_link;	1903	$self->enter_link;
1645		1904
1646	(cf::async {	1905	(async {
		1906	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	1907	unless (eval {
1648	prepare_random_map $exit	1908	prepare_random_map $exit
1649	if $exit->slaying eq "/!";	1909	if $exit->slaying eq "/!";
1650		1910
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	1911	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	1912	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1653		1913
1654	1;	1914	1;
1655	}) {	1915	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	1916	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	1917	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	1918	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	1919	cf::NDI_UNIQUE | cf::NDI_RED);
1660		1920
1661	warn "ERROR in enter_exit: $@";	1921	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	1922	$self->leave_link;
1663	}	1923	}
…		…
1731	}	1991	}
1732	}	1992	}
1733	},	1993	},
1734	);	1994	);
1735		1995
1736	=item $client->coro (\&cb)	1996	=item $client->async (\&cb)
1737		1997
1738	Create a new coroutine, running the specified callback. The coroutine will	1998	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	1999	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2000	or loss of connection).
1741		2001
1742	=cut	2002	=cut
1743		2003
1744	sub cf::client::coro {	2004	sub cf::client::async {
1745	my ($self, $cb) = @_;	2005	my ($self, $cb) = @_;
1746		2006
1747	my $coro = &cf::async ($cb);	2007	my $coro = &Coro::async ($cb);
1748		2008
1749	$coro->on_destroy (sub {	2009	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2010	delete $self->{_coro}{$coro+0};
1751	});	2011	});
1752		2012
…		…
1946	sub db_sync() {	2206	sub db_sync() {
1947	db_save if $dirty;	2207	db_save if $dirty;
1948	undef $dirty;	2208	undef $dirty;
1949	}	2209	}
1950		2210
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2211	my $idle = Event->idle (
1952	db_sync;	2212	reentrant => 0,
		2213	min => 10,
		2214	max => 20,
		2215	repeat => 0,
		2216	data => WF_AUTOCANCEL,
		2217	cb => \&db_sync,
1953	});	2218	);
1954		2219
1955	sub db_dirty() {	2220	sub db_dirty() {
1956	$dirty = 1;	2221	$dirty = 1;
1957	$idle->start;	2222	$idle->start;
1958	}	2223	}
…		…
1990	local $/;	2255	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2256	*CFG = YAML::Syck::Load <$fh>;
1992		2257
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2258	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2259
		2260	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2261	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2262
1995	if (exists $CFG{mlockall}) {	2263	if (exists $CFG{mlockall}) {
1996	eval {	2264	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2265	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2266	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2267	};
2000	warn $@ if $@;	2268	warn $@ if $@;
2001	}	2269	}
2002	}	2270	}
2003		2271
2004	sub main {	2272	sub main {
2005	# we must not ever block the main coroutine	2273	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2274	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2275	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2276	(async {
2009	Event::one_event;	2277	Event::one_event;
2010	})->();	2278	})->prio (Coro::PRIO_MAX);
2011	};	2279	};
2012		2280
2013	cfg_load;	2281	cfg_load;
2014	db_load;	2282	db_load;
2015	load_extensions;	2283	load_extensions;
		2284
		2285	$TICK_WATCHER->start;
2016	Event::loop;	2286	Event::loop;
2017	}	2287	}
2018		2288
2019	#############################################################################	2289	#############################################################################
2020	# initialisation	2290	# initialisation and cleanup
		2291
		2292	# install some emergency cleanup handlers
		2293	BEGIN {
		2294	for my $signal (qw(INT HUP TERM)) {
		2295	Event->signal (
		2296	reentrant => 0,
		2297	data => WF_AUTOCANCEL,
		2298	signal => $signal,
		2299	cb => sub {
		2300	cf::cleanup "SIG$signal";
		2301	},
		2302	);
		2303	}
		2304	}
		2305
		2306	sub emergency_save() {
		2307	my $freeze_guard = cf::freeze_mainloop;
		2308
		2309	warn "enter emergency perl save\n";
		2310
		2311	cf::sync_job {
		2312	# use a peculiar iteration method to avoid tripping on perl
		2313	# refcount bugs in for. also avoids problems with players
		2314	# and maps saved/destroyed asynchronously.
		2315	warn "begin emergency player save\n";
		2316	for my $login (keys %cf::PLAYER) {
		2317	my $pl = $cf::PLAYER{$login} or next;
		2318	$pl->valid or next;
		2319	$pl->save;
		2320	}
		2321	warn "end emergency player save\n";
		2322
		2323	warn "begin emergency map save\n";
		2324	for my $path (keys %cf::MAP) {
		2325	my $map = $cf::MAP{$path} or next;
		2326	$map->valid or next;
		2327	$map->save;
		2328	}
		2329	warn "end emergency map save\n";
		2330	};
		2331
		2332	warn "leave emergency perl save\n";
		2333	}
2021		2334
2022	sub reload() {	2335	sub reload() {
2023	# can/must only be called in main	2336	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2337	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2338	warn "can only reload from main coroutine";
2026	return;	2339	return;
2027	}	2340	}
2028		2341
2029	warn "reloading...";	2342	warn "reloading...";
2030		2343
2031	local $FREEZE = 1;	2344	warn "cancelling server ticker";
		2345	$TICK_WATCHER->cancel;
		2346
2032	cf::emergency_save;	2347	cf::emergency_save;
2033		2348
2034	eval {	2349	eval {
2035	# if anything goes wrong in here, we should simply crash as we already saved	2350	# if anything goes wrong in here, we should simply crash as we already saved
2036		2351
2037	# cancel all watchers	2352	warn "syncing database to disk";
		2353	cf::db_sync;
		2354
		2355	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	2356	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	2357	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	2358	}
2041		2359
		2360	warn "flushing outstanding aio requests";
		2361	for (;;) {
		2362	IO::AIO::flush;
		2363	Coro::cede;
		2364	last unless IO::AIO::nreqs;
		2365	warn "iterate...";
		2366	}
		2367
2042	# cancel all extension coros	2368	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	2369	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	2370	%EXT_CORO = ();
2045		2371
2046	# unload all extensions	2372	warn "removing commands";
2047	for (@exts) {	2373	%COMMAND = ();
		2374
		2375	warn "removing ext commands";
		2376	%EXTCMD = ();
		2377
		2378	warn "unloading/nuking all extensions";
		2379	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	2380	warn "... unloading $pkg";
2049	unload_extension $_;	2381
		2382	if (my $cb = $pkg->can ("unload")) {
		2383	eval {
		2384	$cb->($pkg);
		2385	1
		2386	} or warn "$pkg unloaded, but with errors: $@";
2050	}	2387	}
2051		2388
		2389	warn "... nuking $pkg";
		2390	Symbol::delete_package $pkg;
		2391	}
		2392
2052	# unload all modules loaded from $LIBDIR	2393	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	2394	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2395	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		2396
2056	warn "removing <$k>";	2397	warn "... unloading $k";
2057	delete $INC{$k};	2398	delete $INC{$k};
2058		2399
2059	$k =~ s/\.pm$//;	2400	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	2401	$k =~ s/\//::/g;
2061		2402
…		…
2064	}	2405	}
2065		2406
2066	Symbol::delete_package $k;	2407	Symbol::delete_package $k;
2067	}	2408	}
2068		2409
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	2410	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	2411	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2412	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		2413
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	2414	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	2415	delete $INC{"cf.pm"};
2082		2416
2083	# don't, removes xs symbols, too,	2417	# don't, removes xs symbols, too,
2084	# and global variables created in xs	2418	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	2419	#Symbol::delete_package __PACKAGE__;
2086		2420
2087	# reload cf.pm	2421	warn "unload completed, starting to reload now";
		2422
2088	warn "reloading cf.pm";	2423	warn "reloading cf.pm";
2089	require cf;	2424	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2425	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		2426
2092	# load config and database again	2427	warn "loading config and database again";
2093	cf::cfg_load;	2428	cf::cfg_load;
2094	cf::db_load;	2429	cf::db_load;
2095		2430
2096	# load extensions
2097	warn "load extensions";	2431	warn "loading extensions";
2098	cf::load_extensions;	2432	cf::load_extensions;
2099		2433
2100	# reattach attachments to objects	2434	warn "reattaching attachments to objects/players";
2101	warn "reattach";
2102	_global_reattach;	2435	_global_reattach;
		2436	warn "reattaching attachments to maps";
		2437	reattach $_ for values %MAP;
		2438
		2439	warn "restarting server ticker";
		2440
		2441	$TICK_WATCHER->start;
2103	};	2442	};
2104		2443
2105	if ($@) {	2444	if ($@) {
2106	warn $@;	2445	warn $@;
2107	warn "error while reloading, exiting.";	2446	warn "error while reloading, exiting.";
2108	exit 1;	2447	exit 1;
2109	}	2448	}
2110		2449
2111	warn "reloaded successfully";	2450	warn "reloaded";
2112	};	2451	};
2113		2452
2114	#############################################################################	2453	our $RELOAD_WATCHER; # used only during reload
2115
2116	unless ($LINK_MAP) {
2117	$LINK_MAP = cf::map::new;
2118
2119	$LINK_MAP->width (41);
2120	$LINK_MAP->height (41);
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,
2129	cb => sub {
2130	$_[0]->w->cancel;
2131
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});
2150
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}
2156
2157	register "<global>", __PACKAGE__;
2158		2454
2159	register_command "reload" => sub {	2455	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	2456	my ($who, $arg) = @_;
2161		2457
2162	if ($who->flag (FLAG_WIZ)) {	2458	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");	2459	$who->message ("reloading server.");
		2460
		2461	# doing reload synchronously and two reloads happen back-to-back,
		2462	# coro crashes during coro_state_free->destroy here.
		2463
		2464	$RELOAD_WATCHER ||= Event->timer (
		2465	reentrant => 0,
		2466	after => 0,
		2467	data => WF_AUTOCANCEL,
		2468	cb => sub {
2164	reload;	2469	reload;
2165	$who->message ("end of reload.");	2470	undef $RELOAD_WATCHER;
		2471	},
		2472	);
2166	}	2473	}
2167	};	2474	};
2168		2475
2169	unshift @INC, $LIBDIR;	2476	unshift @INC, $LIBDIR;
		2477
		2478	my $bug_warning = 0;
2170		2479
2171	$TICK_WATCHER = Event->timer (	2480	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	2481	reentrant => 0,
		2482	parked => 1,
2173	prio => 0,	2483	prio => 0,
2174	at => $NEXT_TICK || $TICK,	2484	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	2485	data => WF_AUTOCANCEL,
2176	cb => sub {	2486	cb => sub {
2177	unless ($FREEZE) {	2487	if ($Coro::current != $Coro::main) {
		2488	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2489	unless ++$bug_warning > 10;
		2490	return;
		2491	}
		2492
		2493	$NOW = Event::time;
		2494
2178	cf::server_tick; # one server iteration	2495	cf::server_tick; # one server iteration
2179	$RUNTIME += $TICK;	2496	$RUNTIME += $TICK;
2180	}
2181
2182	$NEXT_TICK += $TICK;	2497	$NEXT_TICK += $TICK;
		2498
		2499	$WAIT_FOR_TICK->broadcast;
		2500	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2183		2501
2184	# if we are delayed by four ticks or more, skip them all	2502	# if we are delayed by four ticks or more, skip them all
2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2503	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2186		2504
2187	$TICK_WATCHER->at ($NEXT_TICK);	2505	$TICK_WATCHER->at ($NEXT_TICK);
…		…
2189	},	2507	},
2190	);	2508	);
2191		2509
2192	IO::AIO::max_poll_time $TICK * 0.2;	2510	IO::AIO::max_poll_time $TICK * 0.2;
2193		2511
2194	Event->io (	2512	undef $Coro::AIO::WATCHER;
		2513	$AIO_POLL_WATCHER = Event->io (
		2514	reentrant => 0,
2195	fd => IO::AIO::poll_fileno,	2515	fd => IO::AIO::poll_fileno,
2196	poll => 'r',	2516	poll => 'r',
2197	prio => 5,	2517	prio => 6,
2198	data => WF_AUTOCANCEL,	2518	data => WF_AUTOCANCEL,
2199	cb => \&IO::AIO::poll_cb,	2519	cb => \&IO::AIO::poll_cb,
2200	);	2520	);
2201		2521
2202	Event->timer (	2522	$WRITE_RUNTIME_WATCHER = Event->timer (
		2523	reentrant => 0,
2203	data => WF_AUTOCANCEL,	2524	data => WF_AUTOCANCEL,
2204	after => 0,	2525	after => 1,
2205	interval => 10,	2526	interval => 10,
2206	cb => sub {	2527	prio => 6, # keep it lowest so it acts like a watchdog
2207	(Coro::unblock_sub {	2528	cb => Coro::unblock_sub {
2208	write_runtime	2529	write_runtime
2209	or warn "ERROR: unable to write runtime file: $!";	2530	or warn "ERROR: unable to write runtime file: $!";
2210	})->();
2211	},	2531	},
2212	);	2532	);
2213		2533
2214	END { cf::emergency_save }	2534	END { cf::emergency_save }
2215		2535

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