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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 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 $json
165		198
…		…
180		213
181	sub to_json($) {	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	}
		218
		219	=item cf::lock_wait $string
		220
		221	Wait until the given lock is available. See cf::lock_acquire.
		222
		223	=item my $lock = cf::lock_acquire $string
		224
		225	Wait until the given lock is available and then acquires it and returns
		226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		227	for example when the coroutine gets canceled), the lock is automatically
		228	returned.
		229
		230	Lock names should begin with a unique identifier (for example, cf::map::find
		231	uses map_find and cf::map::load uses map_load).
		232
		233	=cut
		234
		235	our %LOCK;
		236
		237	sub lock_wait($) {
		238	my ($key) = @_;
		239
		240	# wait for lock, if any
		241	while ($LOCK{$key}) {
		242	push @{ $LOCK{$key} }, $Coro::current;
		243	Coro::schedule;
		244	}
		245	}
		246
		247	sub lock_acquire($) {
		248	my ($key) = @_;
		249
		250	# wait, to be sure we are not locked
		251	lock_wait $key;
		252
		253	$LOCK{$key} = [];
		254
		255	Coro::guard {
		256	# wake up all waiters, to be on the safe side
		257	$_->ready for @{ delete $LOCK{$key} };
		258	}
		259	}
		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	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
185		282
186	=item cf::sync_job { BLOCK }	283	=item cf::sync_job { BLOCK }
187		284
188	The design of crossfire+ requires that the main coro ($Coro::main) is	285	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	286	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	294	=cut
198		295
199	sub sync_job(&) {	296	sub sync_job(&) {
200	my ($job) = @_;	297	my ($job) = @_;
201		298
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	299	if ($Coro::current == $Coro::main) {
		300	# this is the main coro, too bad, we have to block
		301	# till the operation succeeds, freezing the server :/
		302
212	# TODO: use suspend/resume instead	303	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	304	# (but this is cancel-safe)
		305	my $freeze_guard = freeze_mainloop;
		306
		307	my $busy = 1;
		308	my @res;
		309
		310	(async {
		311	@res = eval { $job->() };
		312	warn $@ if $@;
		313	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	314	})->prio (Coro::PRIO_MAX);
		315
215	while ($busy) {	316	while ($busy) {
216	Coro::cede_notself;	317	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	318	}
		319
		320	wantarray ? @res : $res[0]
219	} else {	321	} else {
220	$coro->join;	322	# we are in another coroutine, how wonderful, everything just works
		323
		324	$job->()
221	}	325	}
222
223	wantarray ? @res : $res[0]
224	}	326	}
225		327
226	=item $coro = cf::coro { BLOCK }	328	=item $coro = cf::async_ext { BLOCK }
227		329
228	Creates and returns a new coro. This coro is automcatially being canceled	330	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	331	extension calling this is being unloaded.
230		332
231	=cut	333	=cut
232		334
233	sub coro(&) {	335	sub async_ext(&) {
234	my $cb = shift;	336	my $cb = shift;
235		337
236	my $coro; $coro = async {	338	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		339
243	$coro->on_destroy (sub {	340	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	341	delete $EXT_CORO{$coro+0};
245	});	342	});
246	$EXT_CORO{$coro+0} = $coro;	343	$EXT_CORO{$coro+0} = $coro;
…		…
252	my $runtime = cf::localdir . "/runtime";	349	my $runtime = cf::localdir . "/runtime";
253		350
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	352	or return;
256		353
257	my $value = $cf::RUNTIME;	354	my $value = $cf::RUNTIME + 90 + 10;
		355	# 10 is the runtime save interval, for a monotonic clock
		356	# 60 allows for the watchdog to kill the server.
		357
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	359	and return;
260		360
261	aio_fsync $fh	361	aio_fsync $fh
262	and return;	362	and return;
…		…
271	}	371	}
272		372
273	=back	373	=back
274		374
275	=cut	375	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		376
387	#############################################################################	377	#############################################################################
388		378
389	=head2 ATTACHABLE OBJECTS	379	=head2 ATTACHABLE OBJECTS
390		380
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	506	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	507	our @CB_MAP = ();
518		508
519	my %attachment;	509	my %attachment;
520		510
		511	sub cf::attachable::thawer_merge {
		512	# simply override everything except _meta
		513	local $_[0]{_meta};
		514	%{$_[0]} = %{$_[1]};
		515	}
		516
521	sub _attach_cb($$$$) {	517	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	518	my ($registry, $event, $prio, $cb) = @_;
523		519
524	use sort 'stable';	520	use sort 'stable';
525		521
…		…
696	# object support	692	# object support
697		693
698	sub reattach {	694	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	695	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	696	my ($obj) = @_;
		697
		698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		699
702	my $registry = $obj->registry;	700	my $registry = $obj->registry;
703		701
704	@$registry = ();	702	@$registry = ();
705		703
…		…
798	or return;	796	or return;
799		797
800	unless (aio_stat "$filename.pst") {	798	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	799	(aio_load "$filename.pst", $av) >= 0
802	or return;	800	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	801	$av = eval { (Storable::thaw $av)->{objs} };
804	}	802	}
805		803
		804	warn sprintf "loading %s (%d)\n",
		805	$filename, length $data, scalar @{$av || []};#d#
806	return ($data, $av);	806	return ($data, $av);
807	}	807	}
808		808
809	#############################################################################	809	#############################################################################
810	# command handling &c	810	# command handling &c
…		…
835	=cut	835	=cut
836		836
837	sub register_extcmd {	837	sub register_extcmd {
838	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
839		839
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	840	$EXTCMD{$name} = $cb;
844	}	841	}
845		842
846	cf::player->attach (	843	cf::player->attach (
847	on_command => sub {	844	on_command => sub {
848	my ($pl, $name, $params) = @_;	845	my ($pl, $name, $params) = @_;
…		…
861		858
862	my $msg = eval { from_json $buf };	859	my $msg = eval { from_json $buf };
863		860
864	if (ref $msg) {	861	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	863	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	864	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	865	}
869	}	866	}
870	} else {	867	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		870
874	cf::override;	871	cf::override;
875	},	872	},
876	);	873	);
877		874
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	875	sub load_extension {
885	my ($path) = @_;	876	my ($path) = @_;
886		877
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
888	my $base = $1;	879	my $base = $1;
889	my $pkg = $1;	880	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;	881	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";	882	$pkg = "ext::$pkg";
892		883
893	warn "loading '$path' into '$pkg'\n";	884	warn "... loading '$path' into '$pkg'\n";
894		885
895	open my $fh, "<:utf8", $path	886	open my $fh, "<:utf8", $path
896	or die "$path: $!";	887	or die "$path: $!";
897		888
898	my $source =	889	my $source =
899	"package $pkg; use strict; use utf8;\n"	890	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"	891	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })	892	. (do { local $/; <$fh> })
902	. "\n};\n1";	893	. "\n};\n1";
903		894
904	eval $source	895	unless (eval $source) {
905	or die $@ ? "$path: $@\n"	896	my $msg = $@ ? "$path: $@\n"
906	: "extension disabled.\n";	897	: "extension disabled.\n";
907		898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908	push @exts, $pkg;	899	warn $@;
909	$ext_pkg{$base} = $pkg;	900	warn "mandatory extension failed to load, exiting.\n";
910		901	exit 1;
911	# no strict 'refs';	902	}
912	# @{"$pkg\::ISA"} = ext::;	903	die $@;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	904	}
927		905
928	# remove commands	906	push @EXTS, $pkg;
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	907	}
953		908
954	sub load_extensions {	909	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {	910	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	911	next unless -r $ext;
…		…
960	} or warn "$ext not loaded: $@";	915	} or warn "$ext not loaded: $@";
961	}	916	}
962	}	917	}
963		918
964	#############################################################################	919	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001		920
1002	=head2 CORE EXTENSIONS	921	=head2 CORE EXTENSIONS
1003		922
1004	Functions and methods that extend core crossfire objects.	923	Functions and methods that extend core crossfire objects.
1005		924
		925	=cut
		926
		927	package cf::player;
		928
		929	use Coro::AIO;
		930
1006	=head3 cf::player	931	=head3 cf::player
1007		932
1008	=over 4	933	=over 4
1009		934
1010	=item cf::player::exists $login	935	=item cf::player::find $login
1011		936
1012	Returns true when the given account exists.	937	Returns the given player object, loading it if necessary (might block).
1013		938
1014	=cut	939	=cut
1015		940
1016	sub cf::player::exists($) {	941	sub playerdir($) {
1017	cf::player::find $_[0]	942	cf::localdir
1018	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
1019	}	1088	}
1020		1089
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1090	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022		1091
1023	Sends an ext reply to the player.	1092	Sends an ext reply to the player.
1024		1093
1025	=cut	1094	=cut
1026		1095
1027	sub cf::player::ext_reply($$$%) {	1096	sub ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;	1097	my ($self, $id, %msg) = @_;
1029		1098
1030	$msg{msgid} = $id;	1099	$msg{msgid} = $id;
1031		1100
1032	$self->send ("ext " . to_json \%msg);	1101	$self->send ("ext " . cf::to_json \%msg);
1033	}	1102	}
		1103
		1104	package cf;
1034		1105
1035	=back	1106	=back
1036		1107
1037		1108
1038	=head3 cf::map	1109	=head3 cf::map
…		…
1044	package cf::map;	1115	package cf::map;
1045		1116
1046	use Fcntl;	1117	use Fcntl;
1047	use Coro::AIO;	1118	use Coro::AIO;
1048		1119
		1120	use overload
		1121	'""' => \&as_string,
		1122	fallback => 1;
		1123
1049	our $MAX_RESET = 7200;	1124	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1125	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1126
1054	sub generate_random_map {	1127	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1128	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1129	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1130	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1134	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1135	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$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},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(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, $path
1071	}	1260	}
1072		1261
1073	# and all this just because we cannot iterate over	1262	# and all this just because we cannot iterate over
1074	# all maps in C++...	1263	# all maps in C++...
1075	sub change_all_map_light {	1264	sub change_all_map_light {
1076	my ($change) = @_;	1265	my ($change) = @_;
1077		1266
1078	$_->change_map_light ($change) for values %cf::MAP;	1267	$_->change_map_light ($change)
		1268	for grep $_->outdoor, values %cf::MAP;
1079	}	1269	}
1080		1270
		1271	sub unlink_save {
		1272	my ($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
1081	sub try_load_header($) {	1279	sub load_header_from($) {
1082	my ($path) = @_;	1280	my ($self, $path) = @_;
1083		1281
1084	utf8::encode $path;	1282	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1283	aio_open $path, O_RDONLY, 0
1086	or return;	1284	or return;
1087		1285
1088	my $map = cf::map::new	1286	$self->_load_header ($path)
1089	or return;	1287	or return;
1090		1288
1091	$map->load_header ($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
1092	or return;	1317	or return;
1093		1318
1094	$map->{load_path} = $path;	1319	$self->{load_original} = 1;
1095	use Data::Dumper; warn Dumper $map;#d#	1320	$self->{instantiate_time} = $cf::RUNTIME;
		1321	$self->last_access ($cf::RUNTIME);
		1322	$self->instantiate;
		1323	}
1096		1324
1097	$map	1325	1
1098	}	1326	}
1099		1327
		1328	sub find;
1100	sub find_map {	1329	sub find {
1101	my ($path, $origin) = @_;	1330	my ($path, $origin) = @_;
1102		1331
1103	#warn "find_map<$path,$origin>\n";#d#	1332	$path = normalise $path, $origin && $origin->path;
1104		1333
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1334	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1335
1108	$cf::MAP{$key} || do {	1336	$cf::MAP{$path} || do {
1109	# do it the slow way	1337	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1338	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1339	or return;
1124		1340
1125	$map->{load_original} = 1;
1126	$map->{instantiate_time} = $cf::RUNTIME;
1127	$map->instantiate;
1128
1129	# per-player maps become, after loading, normal maps
1130	$map->per_player (0) if $path->{user_rel};
1131	}
1132
1133	$map->path ($key);
1134	$map->{path} = $path;
1135	$map->last_access ($cf::RUNTIME);	1341	$map->{last_save} = $cf::RUNTIME;
1136		1342
		1343	$map->load_header
		1344	or return;
		1345
1137	$map->reset 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;
		1349	$map->reset;
		1350	undef $guard;
		1351	$map = find $path
		1352	or return;
		1353	}
1138		1354
1139	$cf::MAP{$key} = $map	1355	$cf::MAP{$path} = $map
1140	}	1356	}
1141	}	1357	}
1142		1358
1143	sub load {	1359	sub load {
1144	my ($self) = @_;	1360	my ($self) = @_;
1145		1361
		1362	my $path = $self->{path};
		1363	my $guard = cf::lock_acquire "map_load:$path";
		1364
1146	return if $self->in_memory != cf::MAP_SWAPPED;	1365	return if $self->in_memory != cf::MAP_SWAPPED;
1147		1366
1148	$self->in_memory (cf::MAP_LOADING);	1367	$self->in_memory (cf::MAP_LOADING);
1149		1368
1150	my $path = $self->{path};
1151
1152	$self->alloc;	1369	$self->alloc;
1153	$self->load_objects ($self->{load_path}, 1)	1370	$self->_load_objects ($self->{load_path}, 1)
1154	or return;	1371	or return;
1155		1372
1156	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};	1373	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1374	if delete $self->{load_original};
1157		1375
1158	if (my $uniq = $path->uniq_path) {	1376	if (my $uniq = $self->uniq_path) {
1159	utf8::encode $uniq;	1377	utf8::encode $uniq;
1160	if (aio_open $uniq, O_RDONLY, 0) {	1378	if (aio_open $uniq, O_RDONLY, 0) {
1161	$self->clear_unique_items;	1379	$self->clear_unique_items;
1162	$self->load_objects ($uniq, 0);	1380	$self->_load_objects ($uniq, 0);
1163	}	1381	}
1164	}	1382	}
		1383
		1384	Coro::cede;
1165		1385
1166	# now do the right thing for maps	1386	# now do the right thing for maps
1167	$self->link_multipart_objects;	1387	$self->link_multipart_objects;
1168		1388
1169	if ($self->{path}->is_style_map) {	1389	unless ($self->{deny_activate}) {
1170	$self->{deny_save} = 1;	1390	$self->decay_objects;
1171	$self->{deny_reset} = 1;
1172	} else {
1173	$self->fix_auto_apply;	1391	$self->fix_auto_apply;
1174	$self->decay_objects;
1175	$self->update_buttons;	1392	$self->update_buttons;
		1393	Coro::cede;
1176	$self->set_darkness_map;	1394	$self->set_darkness_map;
1177	$self->difficulty ($self->estimate_difficulty)	1395	$self->difficulty ($self->estimate_difficulty)
1178	unless $self->difficulty;	1396	unless $self->difficulty;
		1397	Coro::cede;
1179	$self->activate;	1398	$self->activate;
1180	}	1399	}
1181		1400
1182	$self->in_memory (cf::MAP_IN_MEMORY);	1401	$self->in_memory (cf::MAP_IN_MEMORY);
1183	}	1402	}
1184		1403
1185	sub load_map_sync {	1404	sub customise_for {
		1405	my ($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	$neigh->load;
		1434	}
		1435	}
		1436
		1437	sub find_sync {
1186	my ($path, $origin) = @_;	1438	my ($path, $origin) = @_;
1187		1439
1188	#warn "load_map_sync<$path, $origin>\n";#d#	1440	cf::sync_job { find $path, $origin }
		1441	}
1189		1442
1190	cf::sync_job {	1443	sub do_load_sync {
1191	my $map = cf::map::find_map $path, $origin	1444	my ($map) = @_;
1192	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;
1193	$map->load;	1467	$map->load;
1194	$map	1468
		1469	delete $MAP_PREFETCH{$path};
		1470	}
		1471	}
		1472	undef $MAP_PREFETCHER;
1195	}	1473	};
		1474
		1475	()
1196	}	1476	}
1197		1477
1198	sub save {	1478	sub save {
1199	my ($self) = @_;	1479	my ($self) = @_;
1200		1480
1201	my $save = $self->{path}->save_path; utf8::encode $save;	1481	my $lock = cf::lock_acquire "map_data:" . $self->path;
1202	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203		1482
1204	$self->{last_save} = $cf::RUNTIME;	1483	$self->{last_save} = $cf::RUNTIME;
1205		1484
1206	return unless $self->dirty;	1485	return unless $self->dirty;
1207		1486
		1487	my $save = $self->save_path; utf8::encode $save;
		1488	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1489
1208	$self->{load_path} = $save;	1490	$self->{load_path} = $save;
1209		1491
1210	return if $self->{deny_save};	1492	return if $self->{deny_save};
1211		1493
1212	warn "saving map ", $self->path;	1494	local $self->{last_access} = $self->last_access;#d#
		1495
		1496	cf::async {
		1497	$_->contr->save for $self->players;
		1498	};
1213		1499
1214	if ($uniq) {	1500	if ($uniq) {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1501	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216	$self->save_objects ($uniq, cf::IO_UNIQUES);	1502	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1217	} else {	1503	} else {
1218	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1504	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219	}	1505	}
1220	}	1506	}
1221		1507
1222	sub swap_out {	1508	sub swap_out {
1223	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;
1224		1515
1225	return if $self->players;	1516	return if $self->players;
1226	return if $self->in_memory != cf::MAP_IN_MEMORY;	1517	return if $self->in_memory != cf::MAP_IN_MEMORY;
1227	return if $self->{deny_save};	1518	return if $self->{deny_save};
1228		1519
1229	$self->save;
1230	$self->clear;	1520	$self->clear;
1231	$self->in_memory (cf::MAP_SWAPPED);	1521	$self->in_memory (cf::MAP_SWAPPED);
1232	}	1522	}
1233		1523
		1524	sub reset_at {
		1525	my ($self) = @_;
		1526
		1527	# TODO: safety, remove and allow resettable per-player maps
		1528	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1529	return 1e99 if $self->{deny_reset};
		1530
		1531	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1532	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1533
		1534	$time + $to
		1535	}
		1536
1234	sub should_reset {	1537	sub should_reset {
1235	my ($map) = @_;
1236
1237	# TODO: safety, remove and allow resettable per-player maps
1238	return if $map->{path}{user_rel};#d#
1239	return if $map->{deny_reset};
1240	#return unless $map->reset_timeout;
1241
1242	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243	my $to = $map->reset_timeout || $DEFAULT_RESET;
1244	$to = $MAX_RESET if $to > $MAX_RESET;
1245
1246	$time + $to < $cf::RUNTIME
1247	}
1248
1249	sub unlink_save {
1250	my ($self) = @_;	1538	my ($self) = @_;
1251		1539
1252	utf8::encode (my $save = $self->{path}->save_path);	1540	$self->reset_at <= $cf::RUNTIME
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255	}	1541	}
1256		1542
1257	sub reset {	1543	sub reset {
1258	my ($self) = @_;	1544	my ($self) = @_;
1259		1545
		1546	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1547
1260	return if $self->players;	1548	return if $self->players;
1261	return if $self->{path}{user_rel};#d#	1549	return if $self->isa ("ext::map_per_player");#d#
1262		1550
1263	warn "resetting map ", $self->path;#d#	1551	warn "resetting map ", $self->path;#d#
1264		1552
1265	delete $cf::MAP{$self->path};	1553	delete $cf::MAP{$self->path};
		1554
		1555	$self->in_memory (cf::MAP_SWAPPED);
		1556	$self->clear;
1266		1557
1267	$_->clear_links_to ($self) for values %cf::MAP;	1558	$_->clear_links_to ($self) for values %cf::MAP;
1268		1559
1269	$self->unlink_save;	1560	$self->unlink_save;
1270	$self->destroy;	1561	$self->destroy;
1271	}	1562	}
1272		1563
1273	sub customise_for {	1564	my $nuke_counter = "aaaa";
1274	my ($map, $ob) = @_;
1275		1565
1276	if ($map->per_player) {	1566	sub nuke {
1277	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1567	my ($self) = @_;
1278	}
1279		1568
1280	$map	1569	delete $cf::MAP{$self->path};
1281	}
1282		1570
1283	sub emergency_save {	1571	$self->unlink_save;
1284	local $cf::FREEZE = 1;
1285		1572
1286	warn "enter emergency map save\n";	1573	bless $self, "cf::map";
		1574	delete $self->{deny_reset};
		1575	$self->{deny_save} = 1;
		1576	$self->reset_timeout (1);
		1577	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1287		1578
1288	cf::sync_job {	1579	$cf::MAP{$self->path} = $self;
1289	warn "begin emergency map save\n";	1580
1290	$_->save for values %cf::MAP;	1581	$self->reset; # polite request, might not happen
		1582	}
		1583
		1584	=item cf::map::unique_maps
		1585
		1586	Returns an arrayref of paths of all shared maps that have
		1587	instantiated unique items. May block.
		1588
		1589	=cut
		1590
		1591	sub unique_maps() {
		1592	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1593	or return;
		1594
		1595	my @paths;
		1596
		1597	for (@$files) {
		1598	utf8::decode $_;
		1599	next if /\.pst$/;
		1600	next unless /^$PATH_SEP/o;
		1601
		1602	s/\.map$//;
		1603	push @paths, $_;
1291	};	1604	}
1292		1605
1293	warn "end emergency map save\n";	1606	\@paths
1294	}	1607	}
1295		1608
1296	package cf;	1609	package cf;
1297		1610
1298	=back	1611	=back
1299		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
1300		1639
1301	=head3 cf::object::player	1640	=head3 cf::object::player
1302		1641
1303	=over 4	1642	=over 4
1304		1643
…		…
1340	(ref $cf::CFG{"may_$access"}	1679	(ref $cf::CFG{"may_$access"}
1341	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1680	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342	: $cf::CFG{"may_$access"})	1681	: $cf::CFG{"may_$access"})
1343	}	1682	}
1344		1683
		1684	=item $player_object->enter_link
		1685
		1686	Freezes the player and moves him/her to a special map (C<{link}>).
		1687
		1688	The player should be reasonably safe there for short amounts of time. You
		1689	I<MUST> call C<leave_link> as soon as possible, though.
		1690
		1691	Will never block.
		1692
		1693	=item $player_object->leave_link ($map, $x, $y)
		1694
		1695	Moves the player out of the special C<{link}> map onto the specified
		1696	map. If the map is not valid (or omitted), the player will be moved back
		1697	to the location he/she was before the call to C<enter_link>, or, if that
		1698	fails, to the emergency map position.
		1699
		1700	Might block.
		1701
		1702	=cut
		1703
		1704	sub link_map {
		1705	unless ($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	$LINK_MAP
		1712	}
		1713
1345	sub cf::object::player::enter_link {	1714	sub cf::object::player::enter_link {
1346	my ($self) = @_;	1715	my ($self) = @_;
1347		1716
1348	return if $self->map == $LINK_MAP;	1717	$self->deactivate_recursive;
1349		1718
		1719	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1720
1350	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1721	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1351	if $self->map;	1722	if $self->map;
1352		1723
1353	$self->enter_map ($LINK_MAP, 20, 20);	1724	$self->enter_map ($LINK_MAP || link_map, 20, 20);
1354	$self->deactivate_recursive;
1355	}	1725	}
1356		1726
1357	sub cf::object::player::leave_link {	1727	sub cf::object::player::leave_link {
1358	my ($self, $map, $x, $y) = @_;	1728	my ($self, $map, $x, $y) = @_;
1359		1729
1360	my $link_pos = delete $self->{_link_pos};	1730	my $link_pos = delete $self->{_link_pos};
1361		1731
1362	unless ($map) {	1732	unless ($map) {
1363	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365	# restore original map position	1733	# restore original map position
1366	($map, $x, $y) = @{ $link_pos || [] };	1734	($map, $x, $y) = @{ $link_pos || [] };
1367	$map = cf::map::find_map $map;	1735	$map = cf::map::find $map;
1368		1736
1369	unless ($map) {	1737	unless ($map) {
1370	($map, $x, $y) = @$EMERGENCY_POSITION;	1738	($map, $x, $y) = @$EMERGENCY_POSITION;
1371	$map = cf::map::find_map $map	1739	$map = cf::map::find $map
1372	or die "FATAL: cannot load emergency map\n";	1740	or die "FATAL: cannot load emergency map\n";
1373	}	1741	}
1374	}	1742	}
1375		1743
1376	($x, $y) = (-1, -1)	1744	($x, $y) = (-1, -1)
…		…
1379	# use -1 or undef as default coordinates, not 0, 0	1747	# use -1 or undef as default coordinates, not 0, 0
1380	($x, $y) = ($map->enter_x, $map->enter_y)	1748	($x, $y) = ($map->enter_x, $map->enter_y)
1381	if $x <=0 && $y <= 0;	1749	if $x <=0 && $y <= 0;
1382		1750
1383	$map->load;	1751	$map->load;
		1752	$map->load_diag;
1384		1753
		1754	return unless $self->contr->active;
1385	$self->activate_recursive;	1755	$self->activate_recursive;
1386	$self->enter_map ($map, $x, $y);	1756	$self->enter_map ($map, $x, $y);
1387	}	1757	}
1388		1758
		1759	cf::player->attach (
		1760	on_logout => sub {
		1761	my ($pl) = @_;
		1762
		1763	# abort map switching before logout
		1764	if ($pl->ob->{_link_pos}) {
		1765	cf::sync_job {
		1766	$pl->ob->leave_link
		1767	};
		1768	}
		1769	},
		1770	on_login => sub {
		1771	my ($pl) = @_;
		1772
		1773	# try to abort aborted map switching on player login :)
		1774	# should happen only on crashes
		1775	if ($pl->ob->{_link_pos}) {
		1776	$pl->ob->enter_link;
		1777	(async {
		1778	# we need this sleep as the login has a concurrent enter_exit running
		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);
		1784	Coro::Timer::sleep 1;
		1785	$pl->ob->leave_link;
		1786	})->prio (2);
		1787	}
		1788	},
		1789	);
		1790
1389	=item $player_object->goto_map ($map, $x, $y)	1791	=item $player_object->goto ($path, $x, $y)
1390		1792
1391	=cut	1793	=cut
1392		1794
1393	sub cf::object::player::goto_map {	1795	sub cf::object::player::goto {
1394	my ($self, $path, $x, $y) = @_;	1796	my ($self, $path, $x, $y) = @_;
1395		1797
1396	$self->enter_link;	1798	$self->enter_link;
1397		1799
1398	(Coro::async {	1800	(async {
1399	$path = new cf::path $path;
1400
1401	my $map = cf::map::find_map $path->as_string;	1801	my $map = cf::map::find $path;
1402	$map = $map->customise_for ($self) if $map;	1802	$map = $map->customise_for ($self) if $map;
1403		1803
1404	warn "entering ", $map->path, " at ($x, $y)\n"	1804	# warn "entering ", $map->path, " at ($x, $y)\n"
1405	if $map;	1805	# if $map;
		1806
		1807	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1406		1808
1407	$self->leave_link ($map, $x, $y);	1809	$self->leave_link ($map, $x, $y);
1408	})->prio (1);	1810	})->prio (1);
1409	}	1811	}
1410		1812
…		…
1414		1816
1415	sub parse_random_map_params {	1817	sub parse_random_map_params {
1416	my ($spec) = @_;	1818	my ($spec) = @_;
1417		1819
1418	my $rmp = { # defaults	1820	my $rmp = { # defaults
1419	xsize => 10,	1821	xsize => (cf::rndm 15, 40),
1420	ysize => 10,	1822	ysize => (cf::rndm 15, 40),
		1823	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1824	#layout => string,
1421	};	1825	};
1422		1826
1423	for (split /\n/, $spec) {	1827	for (split /\n/, $spec) {
1424	my ($k, $v) = split /\s+/, $_, 2;	1828	my ($k, $v) = split /\s+/, $_, 2;
1425		1829
…		…
1429	$rmp	1833	$rmp
1430	}	1834	}
1431		1835
1432	sub prepare_random_map {	1836	sub prepare_random_map {
1433	my ($exit) = @_;	1837	my ($exit) = @_;
		1838
		1839	my $guard = cf::lock_acquire "exit_prepare:$exit";
1434		1840
1435	# all this does is basically replace the /! path by	1841	# all this does is basically replace the /! path by
1436	# a new random map path (?random/...) with a seed	1842	# a new random map path (?random/...) with a seed
1437	# that depends on the exit object	1843	# that depends on the exit object
1438		1844
…		…
1447		1853
1448	$rmp->{random_seed} ||= $exit->random_seed;	1854	$rmp->{random_seed} ||= $exit->random_seed;
1449		1855
1450	my $data = cf::to_json $rmp;	1856	my $data = cf::to_json $rmp;
1451	my $md5 = Digest::MD5::md5_hex $data;	1857	my $md5 = Digest::MD5::md5_hex $data;
		1858	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1452		1859
1453	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) {
1454	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;
1455		1864
1456	$exit->slaying ("?random/$md5");	1865	$exit->slaying ("?random/$md5");
1457	$exit->msg (undef);	1866	$exit->msg (undef);
1458	}	1867	}
1459	}	1868	}
…		…
1463		1872
1464	return unless $self->type == cf::PLAYER;	1873	return unless $self->type == cf::PLAYER;
1465		1874
1466	$self->enter_link;	1875	$self->enter_link;
1467		1876
1468	(Coro::async {	1877	(async {
		1878	$self->deactivate_recursive; # just to be sure
1469	unless (eval {	1879	unless (eval {
1470
1471	prepare_random_map $exit	1880	prepare_random_map $exit
1472	if $exit->slaying eq "/!";	1881	if $exit->slaying eq "/!";
1473		1882
1474	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;
1475	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	1884	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1476		1885
1477	1;	1886	1;
1478	}) {	1887	}) {
1479	$self->message ("Something went wrong deep within the crossfire server. "	1888	$self->message ("Something went wrong deep within the crossfire server. "
1480	. "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. "
1481	. "Please report this to the dungeon master",	1890	. "Please report this to the dungeon master!",
1482	cf::NDI_UNIQUE | cf::NDI_RED);	1891	cf::NDI_UNIQUE | cf::NDI_RED);
1483		1892
1484	warn "ERROR in enter_exit: $@";	1893	warn "ERROR in enter_exit: $@";
1485	$self->leave_link;	1894	$self->leave_link;
1486	}	1895	}
…		…
1537	on_reply => sub {	1946	on_reply => sub {
1538	my ($ns, $msg) = @_;	1947	my ($ns, $msg) = @_;
1539		1948
1540	# this weird shuffling is so that direct followup queries	1949	# this weird shuffling is so that direct followup queries
1541	# get handled first	1950	# get handled first
1542	my $queue = delete $ns->{query_queue};	1951	my $queue = delete $ns->{query_queue}
		1952	or return; # be conservative, not sure how that can happen, but we saw a crash here
1543		1953
1544	(shift @$queue)->[1]->($msg);	1954	(shift @$queue)->[1]->($msg);
1545		1955
1546	push @{ $ns->{query_queue} }, @$queue;	1956	push @{ $ns->{query_queue} }, @$queue;
1547		1957
…		…
1553	}	1963	}
1554	}	1964	}
1555	},	1965	},
1556	);	1966	);
1557		1967
1558	=item $client->coro (\&cb)	1968	=item $client->async (\&cb)
1559		1969
1560	Create a new coroutine, running the specified callback. The coroutine will	1970	Create a new coroutine, running the specified callback. The coroutine will
1561	be automatically cancelled when the client gets destroyed (e.g. on logout,	1971	be automatically cancelled when the client gets destroyed (e.g. on logout,
1562	or loss of connection).	1972	or loss of connection).
1563		1973
1564	=cut	1974	=cut
1565		1975
1566	sub cf::client::coro {	1976	sub cf::client::async {
1567	my ($self, $cb) = @_;	1977	my ($self, $cb) = @_;
1568		1978
1569	my $coro; $coro = async {	1979	my $coro = &Coro::async ($cb);
1570	eval {
1571	$cb->();
1572	};
1573	warn $@ if $@;
1574	};
1575		1980
1576	$coro->on_destroy (sub {	1981	$coro->on_destroy (sub {
1577	delete $self->{_coro}{$coro+0};	1982	delete $self->{_coro}{$coro+0};
1578	});	1983	});
1579		1984
…		…
1751		2156
1752	{	2157	{
1753	my $path = cf::localdir . "/database.pst";	2158	my $path = cf::localdir . "/database.pst";
1754		2159
1755	sub db_load() {	2160	sub db_load() {
1756	warn "loading database $path\n";#d# remove later
1757	$DB = stat $path ? Storable::retrieve $path : { };	2161	$DB = stat $path ? Storable::retrieve $path : { };
1758	}	2162	}
1759		2163
1760	my $pid;	2164	my $pid;
1761		2165
1762	sub db_save() {	2166	sub db_save() {
1763	warn "saving database $path\n";#d# remove later
1764	waitpid $pid, 0 if $pid;	2167	waitpid $pid, 0 if $pid;
1765	if (0 == ($pid = fork)) {	2168	if (0 == ($pid = fork)) {
1766	$DB->{_meta}{version} = 1;	2169	$DB->{_meta}{version} = 1;
1767	Storable::nstore $DB, "$path~";	2170	Storable::nstore $DB, "$path~";
1768	rename "$path~", $path;	2171	rename "$path~", $path;
…		…
1775	sub db_sync() {	2178	sub db_sync() {
1776	db_save if $dirty;	2179	db_save if $dirty;
1777	undef $dirty;	2180	undef $dirty;
1778	}	2181	}
1779		2182
1780	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 {
1781	db_sync;	2184	db_sync;
1782	});	2185	});
1783		2186
1784	sub db_dirty() {	2187	sub db_dirty() {
1785	$dirty = 1;	2188	$dirty = 1;
…		…
1816	open my $fh, "<:utf8", cf::confdir . "/config"	2219	open my $fh, "<:utf8", cf::confdir . "/config"
1817	or return;	2220	or return;
1818		2221
1819	local $/;	2222	local $/;
1820	*CFG = YAML::Syck::Load <$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	}
1821	}	2237	}
1822		2238
1823	sub main {	2239	sub main {
1824	# we must not ever block the main coroutine	2240	# we must not ever block the main coroutine
1825	local $Coro::idle = sub {	2241	local $Coro::idle = sub {
1826	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2242	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827	(Coro::unblock_sub {	2243	(async {
1828	Event::one_event;	2244	Event::one_event;
1829	})->();	2245	})->prio (Coro::PRIO_MAX);
1830	};	2246	};
1831		2247
1832	cfg_load;	2248	cfg_load;
1833	db_load;	2249	db_load;
1834	load_extensions;	2250	load_extensions;
		2251
		2252	$TICK_WATCHER->start;
1835	Event::loop;	2253	Event::loop;
1836	}	2254	}
1837		2255
1838	#############################################################################	2256	#############################################################################
1839	# 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	$map->save;
		2294	}
		2295	warn "end emergency map save\n";
		2296	};
		2297
		2298	warn "leave emergency perl save\n";
		2299	}
1840		2300
1841	sub reload() {	2301	sub reload() {
1842	# can/must only be called in main	2302	# can/must only be called in main
1843	if ($Coro::current != $Coro::main) {	2303	if ($Coro::current != $Coro::main) {
1844	warn "can only reload from main coroutine\n";	2304	warn "can only reload from main coroutine";
1845	return;	2305	return;
1846	}	2306	}
1847		2307
1848	warn "reloading...";	2308	warn "reloading...";
1849		2309
1850	local $FREEZE = 1;	2310	warn "cancelling server ticker";
		2311	$TICK_WATCHER->cancel;
		2312
1851	cf::emergency_save;	2313	cf::emergency_save;
1852		2314
1853	eval {	2315	eval {
1854	# 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
1855		2317
1856	# cancel all watchers	2318	warn "syncing database to disk";
		2319	cf::db_sync;
		2320
		2321	warn "cancelling all WF_AUTOCANCEL watchers";
1857	for (Event::all_watchers) {	2322	for (Event::all_watchers) {
1858	$_->cancel if $_->data & WF_AUTOCANCEL;	2323	$_->cancel if $_->data & WF_AUTOCANCEL;
1859	}	2324	}
1860		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
1861	# cancel all extension coros	2334	warn "cancelling all extension coros";
1862	$_->cancel for values %EXT_CORO;	2335	$_->cancel for values %EXT_CORO;
1863	%EXT_CORO = ();	2336	%EXT_CORO = ();
1864		2337
1865	# unload all extensions	2338	warn "removing commands";
1866	for (@exts) {	2339	%COMMAND = ();
		2340
		2341	warn "removing ext commands";
		2342	%EXTCMD = ();
		2343
		2344	warn "unloading/nuking all extensions";
		2345	for my $pkg (@EXTS) {
1867	warn "unloading <$_>";	2346	warn "... unloading $pkg";
1868	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: $@";
1869	}	2353	}
1870		2354
		2355	warn "... nuking $pkg";
		2356	Symbol::delete_package $pkg;
		2357	}
		2358
1871	# unload all modules loaded from $LIBDIR	2359	warn "unloading all perl modules loaded from $LIBDIR";
1872	while (my ($k, $v) = each %INC) {	2360	while (my ($k, $v) = each %INC) {
1873	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2361	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1874		2362
1875	warn "removing <$k>";	2363	warn "... unloading $k";
1876	delete $INC{$k};	2364	delete $INC{$k};
1877		2365
1878	$k =~ s/\.pm$//;	2366	$k =~ s/\.pm$//;
1879	$k =~ s/\//::/g;	2367	$k =~ s/\//::/g;
1880		2368
…		…
1883	}	2371	}
1884		2372
1885	Symbol::delete_package $k;	2373	Symbol::delete_package $k;
1886	}	2374	}
1887		2375
1888	# sync database to disk
1889	cf::db_sync;
1890	IO::AIO::flush;
1891
1892	# get rid of safe::, as good as possible	2376	warn "getting rid of safe::, as good as possible";
1893	Symbol::delete_package "safe::$_"	2377	Symbol::delete_package "safe::$_"
1894	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);
1895		2379
1896	# remove register_script_function callbacks
1897	# TODO
1898
1899	# unload cf.pm "a bit"	2380	warn "unloading cf.pm \"a bit\"";
1900	delete $INC{"cf.pm"};	2381	delete $INC{"cf.pm"};
1901		2382
1902	# don't, removes xs symbols, too,	2383	# don't, removes xs symbols, too,
1903	# and global variables created in xs	2384	# and global variables created in xs
1904	#Symbol::delete_package __PACKAGE__;	2385	#Symbol::delete_package __PACKAGE__;
1905		2386
1906	# reload cf.pm	2387	warn "unload completed, starting to reload now";
		2388
1907	warn "reloading cf.pm";	2389	warn "reloading cf.pm";
1908	require cf;	2390	require cf;
1909	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2391	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1910		2392
1911	# load config and database again	2393	warn "loading config and database again";
1912	cf::cfg_load;	2394	cf::cfg_load;
1913	cf::db_load;	2395	cf::db_load;
1914		2396
1915	# load extensions
1916	warn "load extensions";	2397	warn "loading extensions";
1917	cf::load_extensions;	2398	cf::load_extensions;
1918		2399
1919	# reattach attachments to objects	2400	warn "reattaching attachments to objects/players";
1920	warn "reattach";
1921	_global_reattach;	2401	_global_reattach;
		2402	warn "reattaching attachments to maps";
		2403	reattach $_ for values %MAP;
		2404
		2405	warn "restarting server ticker";
		2406
		2407	$TICK_WATCHER->start;
1922	};	2408	};
1923		2409
1924	if ($@) {	2410	if ($@) {
1925	warn $@;	2411	warn $@;
1926	warn "error while reloading, exiting.";	2412	warn "error while reloading, exiting.";
1927	exit 1;	2413	exit 1;
1928	}	2414	}
1929		2415
1930	warn "reloaded successfully";	2416	warn "reloaded";
1931	};	2417	};
1932		2418
1933	#############################################################################	2419	our $RELOAD_WATCHER; # used only during reload
1934
1935	unless ($LINK_MAP) {
1936	$LINK_MAP = cf::map::new;
1937
1938	$LINK_MAP->width (41);
1939	$LINK_MAP->height (41);
1940	$LINK_MAP->alloc;
1941	$LINK_MAP->path ("{link}");
1942	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1944
1945	# dirty hack because... archetypes are not yet loaded
1946	Event->timer (
1947	after => 2,
1948	cb => sub {
1949	$_[0]->w->cancel;
1950
1951	# provide some exits "home"
1952	my $exit = cf::object::new "exit";
1953
1954	$exit->slaying ($EMERGENCY_POSITION->[0]);
1955	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1956	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1957
1958	$LINK_MAP->insert ($exit->clone, 19, 19);
1959	$LINK_MAP->insert ($exit->clone, 19, 20);
1960	$LINK_MAP->insert ($exit->clone, 19, 21);
1961	$LINK_MAP->insert ($exit->clone, 20, 19);
1962	$LINK_MAP->insert ($exit->clone, 20, 21);
1963	$LINK_MAP->insert ($exit->clone, 21, 19);
1964	$LINK_MAP->insert ($exit->clone, 21, 20);
1965	$LINK_MAP->insert ($exit->clone, 21, 21);
1966
1967	$exit->destroy;
1968	});
1969
1970	$LINK_MAP->{deny_save} = 1;
1971	$LINK_MAP->{deny_reset} = 1;
1972
1973	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1974	}
1975
1976	register "<global>", __PACKAGE__;
1977		2420
1978	register_command "reload" => sub {	2421	register_command "reload" => sub {
1979	my ($who, $arg) = @_;	2422	my ($who, $arg) = @_;
1980		2423
1981	if ($who->flag (FLAG_WIZ)) {	2424	if ($who->flag (FLAG_WIZ)) {
1982	$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 {
1983	reload;	2431	reload;
1984	$who->message ("end of reload.");	2432	undef $RELOAD_WATCHER;
		2433	});
1985	}	2434	}
1986	};	2435	};
1987		2436
1988	unshift @INC, $LIBDIR;	2437	unshift @INC, $LIBDIR;
		2438
		2439	my $bug_warning = 0;
1989		2440
1990	$TICK_WATCHER = Event->timer (	2441	$TICK_WATCHER = Event->timer (
1991	reentrant => 0,	2442	reentrant => 0,
		2443	parked => 1,
1992	prio => 0,	2444	prio => 0,
1993	at => $NEXT_TICK || $TICK,	2445	at => $NEXT_TICK || $TICK,
1994	data => WF_AUTOCANCEL,	2446	data => WF_AUTOCANCEL,
1995	cb => sub {	2447	cb => sub {
1996	unless ($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
1997	cf::server_tick; # one server iteration	2456	cf::server_tick; # one server iteration
1998	$RUNTIME += $TICK;	2457	$RUNTIME += $TICK;
1999	}
2000
2001	$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;
2002		2462
2003	# 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
2004	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2464	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2005		2465
2006	$TICK_WATCHER->at ($NEXT_TICK);	2466	$TICK_WATCHER->at ($NEXT_TICK);
…		…
2008	},	2468	},
2009	);	2469	);
2010		2470
2011	IO::AIO::max_poll_time $TICK * 0.2;	2471	IO::AIO::max_poll_time $TICK * 0.2;
2012		2472
2013	Event->io (	2473	$AIO_POLL_WATCHER = Event->io (
2014	fd => IO::AIO::poll_fileno,	2474	fd => IO::AIO::poll_fileno,
2015	poll => 'r',	2475	poll => 'r',
2016	prio => 5,	2476	prio => 5,
2017	data => WF_AUTOCANCEL,	2477	data => WF_AUTOCANCEL,
2018	cb => \&IO::AIO::poll_cb,	2478	cb => \&IO::AIO::poll_cb,
2019	);	2479	);
2020		2480
2021	Event->timer (	2481	$WRITE_RUNTIME_WATCHER = Event->timer (
2022	data => WF_AUTOCANCEL,	2482	data => WF_AUTOCANCEL,
2023	after => 0,	2483	after => 1,
2024	interval => 10,	2484	interval => 10,
2025	cb => sub {	2485	prio => 6, # keep it lowest so it acts like a watchdog
2026	(Coro::unblock_sub {	2486	cb => Coro::unblock_sub {
2027	write_runtime	2487	write_runtime
2028	or warn "ERROR: unable to write runtime file: $!";	2488	or warn "ERROR: unable to write runtime file: $!";
2029	})->();
2030	},	2489	},
2031	);	2490	);
2032		2491
		2492	END { cf::emergency_save }
		2493
2033	1	2494	1
2034		2495

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