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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.110 by root, Mon Jan 1 11:21:55 2007 UTC vs.
Revision 1.187 by root, Sat Jan 20 21:06:52 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}), $rmp->{custom}
		1142	)
		1143	}
		1144
		1145	=item cf::map->register ($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, $path
1071	}	1268	}
1072		1269
1073	# and all this just because we cannot iterate over	1270	# and all this just because we cannot iterate over
1074	# all maps in C++...	1271	# all maps in C++...
1075	sub change_all_map_light {	1272	sub change_all_map_light {
1076	my ($change) = @_;	1273	my ($change) = @_;
1077		1274
1078	$_->change_map_light ($change) for values %cf::MAP;	1275	$_->change_map_light ($change)
		1276	for grep $_->outdoor, values %cf::MAP;
1079	}	1277	}
1080		1278
		1279	sub unlink_save {
		1280	my ($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
1081	sub try_load_header($) {	1287	sub load_header_from($) {
1082	my ($path) = @_;	1288	my ($self, $path) = @_;
1083		1289
1084	utf8::encode $path;	1290	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1291	aio_open $path, O_RDONLY, 0
1086	or return;	1292	or return;
1087		1293
1088	my $map = cf::map::new	1294	$self->_load_header ($path)
1089	or return;	1295	or return;
1090		1296
1091	$map->load_header ($path)	1297	$self->{load_path} = $path;
		1298
		1299	1
		1300	}
		1301
		1302	sub load_orig {
		1303	my ($self) = @_;
		1304
		1305	$self->load_header_from ($self->load_path)
		1306	}
		1307
		1308	sub load_temp {
		1309	my ($self) = @_;
		1310
		1311	$self->load_header_from ($self->save_path)
		1312	}
		1313
		1314	sub load_header {
		1315	my ($self) = @_;
		1316
		1317	if ($self->load_temp) {
		1318	$self->last_access ((delete $self->{last_access})
		1319	|| $cf::RUNTIME); #d#
		1320	# safety
		1321	$self->{instantiate_time} = $cf::RUNTIME
		1322	if $self->{instantiate_time} > $cf::RUNTIME;
		1323	} else {
		1324	$self->load_orig
1092	or return;	1325	or return;
1093		1326
1094	$map->{load_path} = $path;	1327	$self->{load_original} = 1;
1095	use Data::Dumper; warn Dumper $map;#d#	1328	$self->{instantiate_time} = $cf::RUNTIME;
		1329	$self->last_access ($cf::RUNTIME);
		1330	$self->instantiate;
		1331	}
1096		1332
1097	$map	1333	1
1098	}	1334	}
1099		1335
		1336	sub find;
1100	sub find_map {	1337	sub find {
1101	my ($path, $origin) = @_;	1338	my ($path, $origin) = @_;
1102		1339
1103	#warn "find_map<$path,$origin>\n";#d#	1340	$path = normalise $path, $origin && $origin->path;
1104		1341
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1342	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1343
1108	$cf::MAP{$key} || do {	1344	$cf::MAP{$path} || do {
1109	# do it the slow way	1345	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1346	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;	1347	or return;
1124		1348
1125	$map->{instantiate_time} = $cf::RUNTIME;
1126	$map->instantiate;
1127
1128	# per-player maps become, after loading, normal maps
1129	$map->per_player (0) if $path->{user_rel};
1130	}
1131
1132	$map->path ($key);
1133	$map->{path} = $path;
1134	$map->last_access ($cf::RUNTIME);	1349	$map->{last_save} = $cf::RUNTIME;
1135		1350
		1351	$map->load_header
		1352	or return;
		1353
1136	$map->reset if $map->should_reset;	1354	if ($map->should_reset) {
		1355	# doing this can freeze the server in a sync job, obviously
		1356	#$cf::WAIT_FOR_TICK->wait;
		1357	$map->reset;
		1358	undef $guard;
		1359	$map = find $path
		1360	or return;
		1361	}
1137		1362
1138	$cf::MAP{$key} = $map	1363	$cf::MAP{$path} = $map
1139	}	1364	}
1140	}	1365	}
1141		1366
1142	sub load {	1367	sub load {
1143	my ($self) = @_;	1368	my ($self) = @_;
1144		1369
		1370	my $path = $self->{path};
		1371	my $guard = cf::lock_acquire "map_load:$path";
		1372
1145	return if $self->in_memory != cf::MAP_SWAPPED;	1373	return if $self->in_memory != cf::MAP_SWAPPED;
1146		1374
1147	$self->in_memory (cf::MAP_LOADING);	1375	$self->in_memory (cf::MAP_LOADING);
1148		1376
1149	my $path = $self->{path};
1150
1151	$self->alloc;	1377	$self->alloc;
1152	$self->load_objects ($self->{load_path}, 1)	1378	$self->_load_objects ($self->{load_path}, 1)
1153	or return;	1379	or return;
1154		1380
		1381	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1382	if delete $self->{load_original};
		1383
1155	if (my $uniq = $path->uniq_path) {	1384	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	1385	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	1386	if (aio_open $uniq, O_RDONLY, 0) {
1158	$self->clear_unique_items;	1387	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	1388	$self->_load_objects ($uniq, 0);
1160	}	1389	}
1161	}	1390	}
		1391
		1392	Coro::cede;
1162		1393
1163	# now do the right thing for maps	1394	# now do the right thing for maps
1164	$self->link_multipart_objects;	1395	$self->link_multipart_objects;
1165		1396
1166	if ($self->{path}->is_style_map) {	1397	unless ($self->{deny_activate}) {
1167	$self->{deny_save} = 1;	1398	$self->decay_objects;
1168	$self->{deny_reset} = 1;
1169	} else {
1170	$self->fix_auto_apply;	1399	$self->fix_auto_apply;
1171	$self->decay_objects;
1172	$self->update_buttons;	1400	$self->update_buttons;
		1401	Coro::cede;
1173	$self->set_darkness_map;	1402	$self->set_darkness_map;
1174	$self->difficulty ($self->estimate_difficulty)	1403	$self->difficulty ($self->estimate_difficulty)
1175	unless $self->difficulty;	1404	unless $self->difficulty;
		1405	Coro::cede;
1176	$self->activate;	1406	$self->activate;
1177	}	1407	}
1178		1408
1179	$self->in_memory (cf::MAP_IN_MEMORY);	1409	$self->in_memory (cf::MAP_IN_MEMORY);
1180	}	1410	}
1181		1411
1182	sub load_map_sync {	1412	sub customise_for {
		1413	my ($self, $ob) = @_;
		1414
		1415	return find "~" . $ob->name . "/" . $self->{path}
		1416	if $self->per_player;
		1417
		1418	$self
		1419	}
		1420
		1421	# find and load all maps in the 3x3 area around a map
		1422	sub load_diag {
		1423	my ($map) = @_;
		1424
		1425	my @diag; # diagonal neighbours
		1426
		1427	for (0 .. 3) {
		1428	my $neigh = $map->tile_path ($_)
		1429	or next;
		1430	$neigh = find $neigh, $map
		1431	or next;
		1432	$neigh->load;
		1433
		1434	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1435	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1436	}
		1437
		1438	for (@diag) {
		1439	my $neigh = find @$_
		1440	or next;
		1441	$neigh->load;
		1442	}
		1443	}
		1444
		1445	sub find_sync {
1183	my ($path, $origin) = @_;	1446	my ($path, $origin) = @_;
1184		1447
1185	#warn "load_map_sync<$path, $origin>\n";#d#	1448	cf::sync_job { find $path, $origin }
		1449	}
1186		1450
1187	cf::sync_job {	1451	sub do_load_sync {
1188	my $map = cf::map::find_map $path, $origin	1452	my ($map) = @_;
1189	or return;	1453
		1454	cf::sync_job { $map->load };
		1455	}
		1456
		1457	our %MAP_PREFETCH;
		1458	our $MAP_PREFETCHER = undef;
		1459
		1460	sub find_async {
		1461	my ($path, $origin) = @_;
		1462
		1463	$path = normalise $path, $origin && $origin->{path};
		1464
		1465	if (my $map = $cf::MAP{$path}) {
		1466	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1467	}
		1468
		1469	undef $MAP_PREFETCH{$path};
		1470	$MAP_PREFETCHER ||= cf::async {
		1471	while (%MAP_PREFETCH) {
		1472	for my $path (keys %MAP_PREFETCH) {
		1473	my $map = find $path
		1474	or next;
1190	$map->load;	1475	$map->load;
1191	$map	1476
		1477	delete $MAP_PREFETCH{$path};
		1478	}
		1479	}
		1480	undef $MAP_PREFETCHER;
1192	}	1481	};
		1482
		1483	()
1193	}	1484	}
1194		1485
1195	sub save {	1486	sub save {
1196	my ($self) = @_;	1487	my ($self) = @_;
1197		1488
1198	my $save = $self->{path}->save_path; utf8::encode $save;	1489	my $lock = cf::lock_acquire "map_data:" . $self->path;
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		1490
1201	$self->{last_save} = $cf::RUNTIME;	1491	$self->{last_save} = $cf::RUNTIME;
1202		1492
1203	return unless $self->dirty;	1493	return unless $self->dirty;
1204		1494
		1495	my $save = $self->save_path; utf8::encode $save;
		1496	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1497
1205	$self->{load_path} = $save;	1498	$self->{load_path} = $save;
1206		1499
1207	return if $self->{deny_save};	1500	return if $self->{deny_save};
1208		1501
1209	warn "saving map ", $self->path;	1502	local $self->{last_access} = $self->last_access;#d#
		1503
		1504	cf::async {
		1505	$_->contr->save for $self->players;
		1506	};
1210		1507
1211	if ($uniq) {	1508	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1509	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);	1510	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {	1511	} else {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1512	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}	1513	}
1217	}	1514	}
1218		1515
1219	sub swap_out {	1516	sub swap_out {
1220	my ($self) = @_;	1517	my ($self) = @_;
		1518
		1519	# save first because save cedes
		1520	$self->save;
		1521
		1522	my $lock = cf::lock_acquire "map_data:" . $self->path;
1221		1523
1222	return if $self->players;	1524	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;	1525	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};	1526	return if $self->{deny_save};
1225		1527
1226	$self->save;
1227	$self->clear;	1528	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	1529	$self->in_memory (cf::MAP_SWAPPED);
1229	}	1530	}
1230		1531
		1532	sub reset_at {
		1533	my ($self) = @_;
		1534
		1535	# TODO: safety, remove and allow resettable per-player maps
		1536	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1537	return 1e99 if $self->{deny_reset};
		1538
		1539	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1540	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1541
		1542	$time + $to
		1543	}
		1544
1231	sub should_reset {	1545	sub should_reset {
1232	my ($map) = @_;	1546	my ($self) = @_;
1233		1547
1234	# TODO: safety, remove and allow resettable per-player maps	1548	$self->reset_at <= $cf::RUNTIME
1235	return if $map->{path}{user_rel};#d#
1236	return if $map->{deny_reset};
1237	#return unless $map->reset_timeout;
1238
1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1240
1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
1242	}	1549	}
1243		1550
1244	sub reset {	1551	sub reset {
1245	my ($self) = @_;	1552	my ($self) = @_;
1246		1553
		1554	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1555
1247	return if $self->players;	1556	return if $self->players;
1248	return if $self->{path}{user_rel};#d#	1557	return if $self->isa ("ext::map_per_player");#d#
1249		1558
1250	warn "resetting map ", $self->path;#d#	1559	warn "resetting map ", $self->path;#d#
1251		1560
1252	utf8::encode (my $save = $self->{path}->save_path);	1561	delete $cf::MAP{$self->path};
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;	1562
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";	1563	$self->in_memory (cf::MAP_SWAPPED);
		1564	$self->clear;
1255		1565
1256	$_->clear_links_to ($self) for values %cf::MAP;	1566	$_->clear_links_to ($self) for values %cf::MAP;
1257		1567
		1568	$self->unlink_save;
1258	$self->clear;	1569	$self->destroy;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}	1570	}
1262		1571
1263	sub customise_for {	1572	my $nuke_counter = "aaaa";
1264	my ($map, $ob) = @_;
1265		1573
1266	if ($map->per_player) {	1574	sub nuke {
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1575	my ($self) = @_;
1268	}
1269		1576
1270	$map	1577	delete $cf::MAP{$self->path};
1271	}
1272		1578
1273	sub emergency_save {	1579	$self->unlink_save;
1274	local $cf::FREEZE = 1;
1275		1580
1276	warn "enter emergency map save\n";	1581	bless $self, "cf::map";
		1582	delete $self->{deny_reset};
		1583	$self->{deny_save} = 1;
		1584	$self->reset_timeout (1);
		1585	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1277		1586
1278	cf::sync_job {	1587	$cf::MAP{$self->path} = $self;
1279	warn "begin emergency map save\n";	1588
1280	$_->save for values %cf::MAP;	1589	$self->reset; # polite request, might not happen
		1590	}
		1591
		1592	=item cf::map::unique_maps
		1593
		1594	Returns an arrayref of paths of all shared maps that have
		1595	instantiated unique items. May block.
		1596
		1597	=cut
		1598
		1599	sub unique_maps() {
		1600	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1601	or return;
		1602
		1603	my @paths;
		1604
		1605	for (@$files) {
		1606	utf8::decode $_;
		1607	next if /\.pst$/;
		1608	next unless /^$PATH_SEP/o;
		1609
		1610	s/\.map$//;
		1611	push @paths, $_;
1281	};	1612	}
1282		1613
1283	warn "end emergency map save\n";	1614	\@paths
1284	}	1615	}
1285		1616
1286	package cf;	1617	package cf;
1287		1618
1288	=back	1619	=back
1289		1620
		1621	=head3 cf::object
		1622
		1623	=cut
		1624
		1625	package cf::object;
		1626
		1627	=over 4
		1628
		1629	=item $ob->inv_recursive
		1630
		1631	Returns the inventory of the object _and_ their inventories, recursively.
		1632
		1633	=cut
		1634
		1635	sub inv_recursive_;
		1636	sub inv_recursive_ {
		1637	map { $_, inv_recursive_ $_->inv } @_
		1638	}
		1639
		1640	sub inv_recursive {
		1641	inv_recursive_ inv $_[0]
		1642	}
		1643
		1644	package cf;
		1645
		1646	=back
1290		1647
1291	=head3 cf::object::player	1648	=head3 cf::object::player
1292		1649
1293	=over 4	1650	=over 4
1294		1651
…		…
1330	(ref $cf::CFG{"may_$access"}	1687	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1688	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	1689	: $cf::CFG{"may_$access"})
1333	}	1690	}
1334		1691
		1692	=item $player_object->enter_link
		1693
		1694	Freezes the player and moves him/her to a special map (C<{link}>).
		1695
		1696	The player should be reasonably safe there for short amounts of time. You
		1697	I<MUST> call C<leave_link> as soon as possible, though.
		1698
		1699	Will never block.
		1700
		1701	=item $player_object->leave_link ($map, $x, $y)
		1702
		1703	Moves the player out of the special C<{link}> map onto the specified
		1704	map. If the map is not valid (or omitted), the player will be moved back
		1705	to the location he/she was before the call to C<enter_link>, or, if that
		1706	fails, to the emergency map position.
		1707
		1708	Might block.
		1709
		1710	=cut
		1711
		1712	sub link_map {
		1713	unless ($LINK_MAP) {
		1714	$LINK_MAP = cf::map::find "{link}"
		1715	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1716	$LINK_MAP->load;
		1717	}
		1718
		1719	$LINK_MAP
		1720	}
		1721
1335	sub cf::object::player::enter_link {	1722	sub cf::object::player::enter_link {
1336	my ($self) = @_;	1723	my ($self) = @_;
1337		1724
1338	return if $self->map == $LINK_MAP;	1725	$self->deactivate_recursive;
1339		1726
		1727	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1728
1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1729	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1341	if $self->map;	1730	if $self->map;
1342		1731
1343	$self->enter_map ($LINK_MAP, 20, 20);	1732	$self->enter_map ($LINK_MAP || link_map, 20, 20);
1344	$self->deactivate_recursive;
1345	}	1733	}
1346		1734
1347	sub cf::object::player::leave_link {	1735	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	1736	my ($self, $map, $x, $y) = @_;
1349		1737
1350	my $link_pos = delete $self->{_link_pos};	1738	my $link_pos = delete $self->{_link_pos};
1351		1739
1352	unless ($map) {	1740	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	1741	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	1742	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	1743	$map = cf::map::find $map;
1358		1744
1359	unless ($map) {	1745	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	1746	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	1747	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	1748	or die "FATAL: cannot load emergency map\n";
1363	}	1749	}
1364	}	1750	}
1365		1751
1366	($x, $y) = (-1, -1)	1752	($x, $y) = (-1, -1)
…		…
1369	# use -1 or undef as default coordinates, not 0, 0	1755	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	1756	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	1757	if $x <=0 && $y <= 0;
1372		1758
1373	$map->load;	1759	$map->load;
		1760	$map->load_diag;
1374		1761
		1762	return unless $self->contr->active;
1375	$self->activate_recursive;	1763	$self->activate_recursive;
1376	$self->enter_map ($map, $x, $y);	1764	$self->enter_map ($map, $x, $y);
1377	}	1765	}
1378		1766
		1767	cf::player->attach (
		1768	on_logout => sub {
		1769	my ($pl) = @_;
		1770
		1771	# abort map switching before logout
		1772	if ($pl->ob->{_link_pos}) {
		1773	cf::sync_job {
		1774	$pl->ob->leave_link
		1775	};
		1776	}
		1777	},
		1778	on_login => sub {
		1779	my ($pl) = @_;
		1780
		1781	# try to abort aborted map switching on player login :)
		1782	# should happen only on crashes
		1783	if ($pl->ob->{_link_pos}) {
		1784	$pl->ob->enter_link;
		1785	(async {
		1786	# we need this sleep as the login has a concurrent enter_exit running
		1787	# and this sleep increases chances of the player not ending up in scorn
		1788	$pl->ob->reply (undef,
		1789	"There was an internal problem at your last logout, "
		1790	. "the server will try to bring you to your intended destination in a second.",
		1791	cf::NDI_RED);
		1792	Coro::Timer::sleep 1;
		1793	$pl->ob->leave_link;
		1794	})->prio (2);
		1795	}
		1796	},
		1797	);
		1798
1379	=item $player_object->goto_map ($map, $x, $y)	1799	=item $player_object->goto ($path, $x, $y)
1380		1800
1381	=cut	1801	=cut
1382		1802
1383	sub cf::object::player::goto_map {	1803	sub cf::object::player::goto {
1384	my ($self, $path, $x, $y) = @_;	1804	my ($self, $path, $x, $y) = @_;
1385		1805
1386	$self->enter_link;	1806	$self->enter_link;
1387		1807
1388	(Coro::async {	1808	(async {
1389	$path = new cf::path $path;
1390
1391	my $map = cf::map::find_map $path->as_string;	1809	my $map = cf::map::find $path;
1392	$map = $map->customise_for ($self) if $map;	1810	$map = $map->customise_for ($self) if $map;
1393		1811
1394	warn "entering ", $map->path, " at ($x, $y)\n"	1812	# warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	1813	# if $map;
		1814
		1815	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1396		1816
1397	$self->leave_link ($map, $x, $y);	1817	$self->leave_link ($map, $x, $y);
1398	})->prio (1);	1818	})->prio (1);
1399	}	1819	}
1400		1820
…		…
1404		1824
1405	sub parse_random_map_params {	1825	sub parse_random_map_params {
1406	my ($spec) = @_;	1826	my ($spec) = @_;
1407		1827
1408	my $rmp = { # defaults	1828	my $rmp = { # defaults
1409	xsize => 10,	1829	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	1830	ysize => (cf::rndm 15, 40),
		1831	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1832	#layout => string,
1411	};	1833	};
1412		1834
1413	for (split /\n/, $spec) {	1835	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	1836	my ($k, $v) = split /\s+/, $_, 2;
1415		1837
…		…
1419	$rmp	1841	$rmp
1420	}	1842	}
1421		1843
1422	sub prepare_random_map {	1844	sub prepare_random_map {
1423	my ($exit) = @_;	1845	my ($exit) = @_;
		1846
		1847	my $guard = cf::lock_acquire "exit_prepare:$exit";
1424		1848
1425	# all this does is basically replace the /! path by	1849	# all this does is basically replace the /! path by
1426	# a new random map path (?random/...) with a seed	1850	# a new random map path (?random/...) with a seed
1427	# that depends on the exit object	1851	# that depends on the exit object
1428		1852
…		…
1437		1861
1438	$rmp->{random_seed} ||= $exit->random_seed;	1862	$rmp->{random_seed} ||= $exit->random_seed;
1439		1863
1440	my $data = cf::to_json $rmp;	1864	my $data = cf::to_json $rmp;
1441	my $md5 = Digest::MD5::md5_hex $data;	1865	my $md5 = Digest::MD5::md5_hex $data;
		1866	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1442		1867
1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1868	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1444	aio_write $fh, 0, (length $data), $data, 0;	1869	aio_write $fh, 0, (length $data), $data, 0;
		1870	undef $fh;
		1871	aio_rename "$meta~", $meta;
1445		1872
1446	$exit->slaying ("?random/$md5");	1873	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	1874	$exit->msg (undef);
1448	}	1875	}
1449	}	1876	}
…		…
1453		1880
1454	return unless $self->type == cf::PLAYER;	1881	return unless $self->type == cf::PLAYER;
1455		1882
1456	$self->enter_link;	1883	$self->enter_link;
1457		1884
1458	(Coro::async {	1885	(async {
		1886	$self->deactivate_recursive; # just to be sure
1459	unless (eval {	1887	unless (eval {
1460
1461	prepare_random_map $exit	1888	prepare_random_map $exit
1462	if $exit->slaying eq "/!";	1889	if $exit->slaying eq "/!";
1463		1890
1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	1891	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	1892	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1466		1893
1467	1;	1894	1;
1468	}) {	1895	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	1896	$self->message ("Something went wrong deep within the crossfire server. "
1470	. "I'll try to bring you back to the map you were before. "	1897	. "I'll try to bring you back to the map you were before. "
1471	. "Please report this to the dungeon master",	1898	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	1899	cf::NDI_UNIQUE | cf::NDI_RED);
1473		1900
1474	warn "ERROR in enter_exit: $@";	1901	warn "ERROR in enter_exit: $@";
1475	$self->leave_link;	1902	$self->leave_link;
1476	}	1903	}
…		…
1527	on_reply => sub {	1954	on_reply => sub {
1528	my ($ns, $msg) = @_;	1955	my ($ns, $msg) = @_;
1529		1956
1530	# this weird shuffling is so that direct followup queries	1957	# this weird shuffling is so that direct followup queries
1531	# get handled first	1958	# get handled first
1532	my $queue = delete $ns->{query_queue};	1959	my $queue = delete $ns->{query_queue}
		1960	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		1961
1534	(shift @$queue)->[1]->($msg);	1962	(shift @$queue)->[1]->($msg);
1535		1963
1536	push @{ $ns->{query_queue} }, @$queue;	1964	push @{ $ns->{query_queue} }, @$queue;
1537		1965
…		…
1543	}	1971	}
1544	}	1972	}
1545	},	1973	},
1546	);	1974	);
1547		1975
1548	=item $client->coro (\&cb)	1976	=item $client->async (\&cb)
1549		1977
1550	Create a new coroutine, running the specified callback. The coroutine will	1978	Create a new coroutine, running the specified callback. The coroutine will
1551	be automatically cancelled when the client gets destroyed (e.g. on logout,	1979	be automatically cancelled when the client gets destroyed (e.g. on logout,
1552	or loss of connection).	1980	or loss of connection).
1553		1981
1554	=cut	1982	=cut
1555		1983
1556	sub cf::client::coro {	1984	sub cf::client::async {
1557	my ($self, $cb) = @_;	1985	my ($self, $cb) = @_;
1558		1986
1559	my $coro; $coro = async {	1987	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		1988
1566	$coro->on_destroy (sub {	1989	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	1990	delete $self->{_coro}{$coro+0};
1568	});	1991	});
1569		1992
…		…
1741		2164
1742	{	2165	{
1743	my $path = cf::localdir . "/database.pst";	2166	my $path = cf::localdir . "/database.pst";
1744		2167
1745	sub db_load() {	2168	sub db_load() {
1746	warn "loading database $path\n";#d# remove later
1747	$DB = stat $path ? Storable::retrieve $path : { };	2169	$DB = stat $path ? Storable::retrieve $path : { };
1748	}	2170	}
1749		2171
1750	my $pid;	2172	my $pid;
1751		2173
1752	sub db_save() {	2174	sub db_save() {
1753	warn "saving database $path\n";#d# remove later
1754	waitpid $pid, 0 if $pid;	2175	waitpid $pid, 0 if $pid;
1755	if (0 == ($pid = fork)) {	2176	if (0 == ($pid = fork)) {
1756	$DB->{_meta}{version} = 1;	2177	$DB->{_meta}{version} = 1;
1757	Storable::nstore $DB, "$path~";	2178	Storable::nstore $DB, "$path~";
1758	rename "$path~", $path;	2179	rename "$path~", $path;
…		…
1765	sub db_sync() {	2186	sub db_sync() {
1766	db_save if $dirty;	2187	db_save if $dirty;
1767	undef $dirty;	2188	undef $dirty;
1768	}	2189	}
1769		2190
1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2191	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1771	db_sync;	2192	db_sync;
1772	});	2193	});
1773		2194
1774	sub db_dirty() {	2195	sub db_dirty() {
1775	$dirty = 1;	2196	$dirty = 1;
…		…
1806	open my $fh, "<:utf8", cf::confdir . "/config"	2227	open my $fh, "<:utf8", cf::confdir . "/config"
1807	or return;	2228	or return;
1808		2229
1809	local $/;	2230	local $/;
1810	*CFG = YAML::Syck::Load <$fh>;	2231	*CFG = YAML::Syck::Load <$fh>;
		2232
		2233	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2234
		2235	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2236	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2237
		2238	if (exists $CFG{mlockall}) {
		2239	eval {
		2240	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2241	and die "WARNING: m(un)lockall failed: $!\n";
		2242	};
		2243	warn $@ if $@;
		2244	}
1811	}	2245	}
1812		2246
1813	sub main {	2247	sub main {
1814	# we must not ever block the main coroutine	2248	# we must not ever block the main coroutine
1815	local $Coro::idle = sub {	2249	local $Coro::idle = sub {
1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2250	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1817	(Coro::unblock_sub {	2251	(async {
1818	Event::one_event;	2252	Event::one_event;
1819	})->();	2253	})->prio (Coro::PRIO_MAX);
1820	};	2254	};
1821		2255
1822	cfg_load;	2256	cfg_load;
1823	db_load;	2257	db_load;
1824	load_extensions;	2258	load_extensions;
		2259
		2260	$TICK_WATCHER->start;
1825	Event::loop;	2261	Event::loop;
1826	}	2262	}
1827		2263
1828	#############################################################################	2264	#############################################################################
1829	# initialisation	2265	# initialisation and cleanup
1830		2266
		2267	# install some emergency cleanup handlers
		2268	BEGIN {
		2269	for my $signal (qw(INT HUP TERM)) {
		2270	Event->signal (
		2271	data => WF_AUTOCANCEL,
		2272	signal => $signal,
		2273	cb => sub {
		2274	cf::cleanup "SIG$signal";
		2275	},
		2276	);
		2277	}
		2278	}
		2279
		2280	sub emergency_save() {
		2281	my $freeze_guard = cf::freeze_mainloop;
		2282
		2283	warn "enter emergency perl save\n";
		2284
		2285	cf::sync_job {
		2286	# use a peculiar iteration method to avoid tripping on perl
		2287	# refcount bugs in for. also avoids problems with players
		2288	# and maps saved/destroyed asynchronously.
		2289	warn "begin emergency player save\n";
		2290	for my $login (keys %cf::PLAYER) {
		2291	my $pl = $cf::PLAYER{$login} or next;
		2292	$pl->valid or next;
		2293	$pl->save;
		2294	}
		2295	warn "end emergency player save\n";
		2296
		2297	warn "begin emergency map save\n";
		2298	for my $path (keys %cf::MAP) {
		2299	my $map = $cf::MAP{$path} or next;
		2300	$map->valid or next;
		2301	$map->save;
		2302	}
		2303	warn "end emergency map save\n";
		2304	};
		2305
		2306	warn "leave emergency perl save\n";
		2307	}
		2308
1831	sub perl_reload() {	2309	sub reload() {
1832	# can/must only be called in main	2310	# can/must only be called in main
1833	if ($Coro::current != $Coro::main) {	2311	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	2312	warn "can only reload from main coroutine";
1835	return;	2313	return;
1836	}	2314	}
1837		2315
1838	warn "reloading...";	2316	warn "reloading...";
1839		2317
1840	local $FREEZE = 1;	2318	warn "cancelling server ticker";
		2319	$TICK_WATCHER->cancel;
		2320
1841	cf::emergency_save;	2321	cf::emergency_save;
1842		2322
1843	eval {	2323	eval {
1844	# if anything goes wrong in here, we should simply crash as we already saved	2324	# if anything goes wrong in here, we should simply crash as we already saved
1845		2325
1846	# cancel all watchers	2326	warn "syncing database to disk";
		2327	cf::db_sync;
		2328
		2329	warn "cancelling all WF_AUTOCANCEL watchers";
1847	for (Event::all_watchers) {	2330	for (Event::all_watchers) {
1848	$_->cancel if $_->data & WF_AUTOCANCEL;	2331	$_->cancel if $_->data & WF_AUTOCANCEL;
1849	}	2332	}
1850		2333
		2334	warn "flushing outstanding aio requests";
		2335	for (;;) {
		2336	IO::AIO::flush;
		2337	Coro::cede;
		2338	last unless IO::AIO::nreqs;
		2339	warn "iterate...";
		2340	}
		2341
1851	# cancel all extension coros	2342	warn "cancelling all extension coros";
1852	$_->cancel for values %EXT_CORO;	2343	$_->cancel for values %EXT_CORO;
1853	%EXT_CORO = ();	2344	%EXT_CORO = ();
1854		2345
1855	# unload all extensions	2346	warn "removing commands";
1856	for (@exts) {	2347	%COMMAND = ();
		2348
		2349	warn "removing ext commands";
		2350	%EXTCMD = ();
		2351
		2352	warn "unloading/nuking all extensions";
		2353	for my $pkg (@EXTS) {
1857	warn "unloading <$_>";	2354	warn "... unloading $pkg";
1858	unload_extension $_;	2355
		2356	if (my $cb = $pkg->can ("unload")) {
		2357	eval {
		2358	$cb->($pkg);
		2359	1
		2360	} or warn "$pkg unloaded, but with errors: $@";
1859	}	2361	}
1860		2362
		2363	warn "... nuking $pkg";
		2364	Symbol::delete_package $pkg;
		2365	}
		2366
1861	# unload all modules loaded from $LIBDIR	2367	warn "unloading all perl modules loaded from $LIBDIR";
1862	while (my ($k, $v) = each %INC) {	2368	while (my ($k, $v) = each %INC) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2369	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1864		2370
1865	warn "removing <$k>";	2371	warn "... unloading $k";
1866	delete $INC{$k};	2372	delete $INC{$k};
1867		2373
1868	$k =~ s/\.pm$//;	2374	$k =~ s/\.pm$//;
1869	$k =~ s/\//::/g;	2375	$k =~ s/\//::/g;
1870		2376
…		…
1873	}	2379	}
1874		2380
1875	Symbol::delete_package $k;	2381	Symbol::delete_package $k;
1876	}	2382	}
1877		2383
1878	# sync database to disk
1879	cf::db_sync;
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible	2384	warn "getting rid of safe::, as good as possible";
1883	Symbol::delete_package "safe::$_"	2385	Symbol::delete_package "safe::$_"
1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2386	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1885		2387
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"	2388	warn "unloading cf.pm \"a bit\"";
1890	delete $INC{"cf.pm"};	2389	delete $INC{"cf.pm"};
1891		2390
1892	# don't, removes xs symbols, too,	2391	# don't, removes xs symbols, too,
1893	# and global variables created in xs	2392	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;	2393	#Symbol::delete_package __PACKAGE__;
1895		2394
1896	# reload cf.pm	2395	warn "unload completed, starting to reload now";
		2396
1897	warn "reloading cf.pm";	2397	warn "reloading cf.pm";
1898	require cf;	2398	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2399	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900		2400
1901	# load config and database again	2401	warn "loading config and database again";
1902	cf::cfg_load;	2402	cf::cfg_load;
1903	cf::db_load;	2403	cf::db_load;
1904		2404
1905	# load extensions
1906	warn "load extensions";	2405	warn "loading extensions";
1907	cf::load_extensions;	2406	cf::load_extensions;
1908		2407
1909	# reattach attachments to objects	2408	warn "reattaching attachments to objects/players";
1910	warn "reattach";
1911	_global_reattach;	2409	_global_reattach;
		2410	warn "reattaching attachments to maps";
		2411	reattach $_ for values %MAP;
		2412
		2413	warn "restarting server ticker";
		2414
		2415	$TICK_WATCHER->start;
1912	};	2416	};
1913		2417
1914	if ($@) {	2418	if ($@) {
1915	warn $@;	2419	warn $@;
1916	warn "error while reloading, exiting.";	2420	warn "error while reloading, exiting.";
1917	exit 1;	2421	exit 1;
1918	}	2422	}
1919		2423
1920	warn "reloaded successfully";	2424	warn "reloaded";
1921	};	2425	};
1922		2426
1923	#############################################################################	2427	our $RELOAD_WATCHER; # used only during reload
1924		2428
1925	unless ($LINK_MAP) {	2429	register_command "reload" => sub {
1926	$LINK_MAP = cf::map::new;	2430	my ($who, $arg) = @_;
1927		2431
1928	$LINK_MAP->width (41);	2432	if ($who->flag (FLAG_WIZ)) {
1929	$LINK_MAP->height (41);	2433	$who->message ("reloading server.");
1930	$LINK_MAP->alloc;
1931	$LINK_MAP->path ("{link}");
1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1934		2434
1935	# dirty hack because... archetypes are not yet loaded	2435	# doing reload synchronously and two reloads happen back-to-back,
1936	Event->timer (	2436	# coro crashes during coro_state_free->destroy here.
1937	after => 2,
1938	cb => sub {
1939	$_[0]->w->cancel;
1940		2437
1941	# provide some exits "home"	2438	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
1942	my $exit = cf::object::new "exit";	2439	reload;
1943		2440	undef $RELOAD_WATCHER;
1944	$exit->slaying ($EMERGENCY_POSITION->[0]);
1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1947
1948	$LINK_MAP->insert ($exit->clone, 19, 19);
1949	$LINK_MAP->insert ($exit->clone, 19, 20);
1950	$LINK_MAP->insert ($exit->clone, 19, 21);
1951	$LINK_MAP->insert ($exit->clone, 20, 19);
1952	$LINK_MAP->insert ($exit->clone, 20, 21);
1953	$LINK_MAP->insert ($exit->clone, 21, 19);
1954	$LINK_MAP->insert ($exit->clone, 21, 20);
1955	$LINK_MAP->insert ($exit->clone, 21, 21);
1956
1957	$exit->destroy;
1958	});	2441	});
1959
1960	$LINK_MAP->{deny_save} = 1;
1961	$LINK_MAP->{deny_reset} = 1;
1962
1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1964	}
1965
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {
1969	my ($who, $arg) = @_;
1970
1971	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end of reload.");
1975	}	2442	}
1976	};	2443	};
1977		2444
1978	unshift @INC, $LIBDIR;	2445	unshift @INC, $LIBDIR;
		2446
		2447	my $bug_warning = 0;
1979		2448
1980	$TICK_WATCHER = Event->timer (	2449	$TICK_WATCHER = Event->timer (
1981	reentrant => 0,	2450	reentrant => 0,
		2451	parked => 1,
1982	prio => 0,	2452	prio => 0,
1983	at => $NEXT_TICK || $TICK,	2453	at => $NEXT_TICK || $TICK,
1984	data => WF_AUTOCANCEL,	2454	data => WF_AUTOCANCEL,
1985	cb => sub {	2455	cb => sub {
1986	unless ($FREEZE) {	2456	if ($Coro::current != $Coro::main) {
		2457	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2458	unless ++$bug_warning > 10;
		2459	return;
		2460	}
		2461
		2462	$NOW = Event::time;
		2463
1987	cf::server_tick; # one server iteration	2464	cf::server_tick; # one server iteration
1988	$RUNTIME += $TICK;	2465	$RUNTIME += $TICK;
1989	}
1990
1991	$NEXT_TICK += $TICK;	2466	$NEXT_TICK += $TICK;
		2467
		2468	$WAIT_FOR_TICK->broadcast;
		2469	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
1992		2470
1993	# if we are delayed by four ticks or more, skip them all	2471	# if we are delayed by four ticks or more, skip them all
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2472	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1995		2473
1996	$TICK_WATCHER->at ($NEXT_TICK);	2474	$TICK_WATCHER->at ($NEXT_TICK);
…		…
1998	},	2476	},
1999	);	2477	);
2000		2478
2001	IO::AIO::max_poll_time $TICK * 0.2;	2479	IO::AIO::max_poll_time $TICK * 0.2;
2002		2480
2003	Event->io (	2481	$AIO_POLL_WATCHER = Event->io (
2004	fd => IO::AIO::poll_fileno,	2482	fd => IO::AIO::poll_fileno,
2005	poll => 'r',	2483	poll => 'r',
2006	prio => 5,	2484	prio => 5,
2007	data => WF_AUTOCANCEL,	2485	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,	2486	cb => \&IO::AIO::poll_cb,
2009	);	2487	);
2010		2488
2011	Event->timer (	2489	$WRITE_RUNTIME_WATCHER = Event->timer (
2012	data => WF_AUTOCANCEL,	2490	data => WF_AUTOCANCEL,
2013	after => 0,	2491	after => 1,
2014	interval => 10,	2492	interval => 10,
2015	cb => sub {	2493	prio => 6, # keep it lowest so it acts like a watchdog
2016	(Coro::unblock_sub {	2494	cb => Coro::unblock_sub {
2017	write_runtime	2495	write_runtime
2018	or warn "ERROR: unable to write runtime file: $!";	2496	or warn "ERROR: unable to write runtime file: $!";
2019	})->();
2020	},	2497	},
2021	);	2498	);
2022		2499
		2500	END { cf::emergency_save }
		2501
2023	1	2502	1
2024		2503

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