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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.141 by root, Fri Jan 5 20:08:53 2007 UTC vs.
Revision 1.207 by root, Sun Feb 11 22:42:09 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 3.5 ();
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 BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
25		27
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	28	use Event; $Event::Eval = 1; # no idea why this is required, but it is
27		29
		30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		31
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	32	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	33	$YAML::Syck::ImplicitUnicode = 1;
30		34
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	35	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		36
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
35	our %COMMAND = ();	37	our %COMMAND = ();
36	our %COMMAND_TIME = ();	38	our %COMMAND_TIME = ();
		39
		40	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	41	our %EXTCMD = ();
		42	our %EXT_CORO = (); # coroutines bound to extensions
		43	our %EXT_MAP = (); # pluggable maps
38		44
39	our @EVENT;	45	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	46	our $LIBDIR = datadir . "/ext";
41		47
42	our $TICK = MAX_TIME * 1e-6;	48	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	49	our $TICK_WATCHER;
		50	our $AIO_POLL_WATCHER;
		51	our $WRITE_RUNTIME_WATCHER;
44	our $NEXT_TICK;	52	our $NEXT_TICK;
45	our $NOW;	53	our $NOW;
		54	our $USE_FSYNC = 1; # use fsync to write maps - default off
		55
		56	our $BDB_POLL_WATCHER;
		57	our $DB_ENV;
46		58
47	our %CFG;	59	our %CFG;
48		60
49	our $UPTIME; $UPTIME ||= time;	61	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	62	our $RUNTIME;
51		63
		64	our %PLAYER; # all users
52	our %MAP; # all maps	65	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	66	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	67	our $RANDOM_MAPS = cf::localdir . "/random";
55	our %EXT_CORO;	68	our $BDB_ENV_DIR = cf::localdir . "/db";
		69
		70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		72
		73	# used to convert map paths into valid unix filenames by replacing / by ∕
		74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		75
57	binmode STDOUT;	76	binmode STDOUT;
58	binmode STDERR;	77	binmode STDERR;
59		78
60	# read virtual server time, if available	79	# read virtual server time, if available
…		…
67	mkdir cf::localdir;	86	mkdir cf::localdir;
68	mkdir cf::localdir . "/" . cf::playerdir;	87	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;	88	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;	89	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;	90	mkdir $RANDOM_MAPS;
		91	mkdir $BDB_ENV_DIR;
72		92
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	93	our $EMERGENCY_POSITION;
		94
		95	sub cf::map::normalise;
76		96
77	#############################################################################	97	#############################################################################
78		98
79	=head2 GLOBAL VARIABLES	99	=head2 GLOBAL VARIABLES
80		100
…		…
104		124
105	=item %cf::CFG	125	=item %cf::CFG
106		126
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	127	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	128	from wherever your confdir points to.
		129
		130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		131
		132	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		133	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		134	processing has been done. Call C<< ->wait >> on them to maximise the
		135	window of cpu time available, or simply to synchronise to the server tick.
109		136
110	=back	137	=back
111		138
112	=cut	139	=cut
113		140
…		…
117	utf8::encode $msg;	144	utf8::encode $msg;
118		145
119	$msg .= "\n"	146	$msg .= "\n"
120	unless $msg =~ /\n$/;	147	unless $msg =~ /\n$/;
121		148
122	LOG llevError, "cfperl: $msg";	149	LOG llevError, $msg;
123	};	150	};
124	}	151	}
125		152
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		172
146	$Event::DIED = sub {	173	$Event::DIED = sub {
147	warn "error in event callback: @_";	174	warn "error in event callback: @_";
148	};	175	};
149		176
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	177	=head2 UTILITY FUNCTIONS
155		178
156	=over 4	179	=over 4
157		180
		181	=item dumpval $ref
		182
158	=cut	183	=cut
		184
		185	sub dumpval {
		186	eval {
		187	local $SIG{__DIE__};
		188	my $d;
		189	if (1) {
		190	$d = new Data::Dumper([$_[0]], ["*var"]);
		191	$d->Terse(1);
		192	$d->Indent(2);
		193	$d->Quotekeys(0);
		194	$d->Useqq(1);
		195	#$d->Bless(...);
		196	$d->Seen($_[1]) if @_ > 1;
		197	$d = $d->Dump();
		198	}
		199	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		200	$d
		201	} || "[unable to dump $_[0]: '$@']";
		202	}
159		203
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	204	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		205
162	=item $ref = cf::from_json $json	206	=item $ref = cf::from_json $json
163		207
…		…
224	}	268	}
225		269
226	sub freeze_mainloop {	270	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	271	return unless $TICK_WATCHER->is_active;
228		272
229	my $guard = Coro::guard { $TICK_WATCHER->start };	273	my $guard = Coro::guard {
		274	$TICK_WATCHER->start;
		275	$WRITE_RUNTIME_WATCHER->start;
		276	};
		277	$WRITE_RUNTIME_WATCHER->stop;
230	$TICK_WATCHER->stop;	278	$TICK_WATCHER->stop;
231	$guard	279	$guard
232	}	280	}
233		281
234	=item cf::async { BLOCK }	282	=item cf::async { BLOCK }
…		…
286	}	334	}
287	}	335	}
288		336
289	=item $coro = cf::async_ext { BLOCK }	337	=item $coro = cf::async_ext { BLOCK }
290		338
291	Like async, but this coro is automcatially being canceled when the	339	Like async, but this coro is automatically being canceled when the
292	extension calling this is being unloaded.	340	extension calling this is being unloaded.
293		341
294	=cut	342	=cut
295		343
296	sub async_ext(&) {	344	sub async_ext(&) {
…		…
310	my $runtime = cf::localdir . "/runtime";	358	my $runtime = cf::localdir . "/runtime";
311		359
312	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
313	or return;	361	or return;
314		362
		363	my $value = $cf::RUNTIME + 90 + 10;
315	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	364	# 10 is the runtime save interval, for a monotonic clock
		365	# 60 allows for the watchdog to kill the server.
		366
316	(aio_write $fh, 0, (length $value), $value, 0) <= 0	367	(aio_write $fh, 0, (length $value), $value, 0) <= 0
317	and return;	368	and return;
318		369
		370	# always fsync - this file is important
319	aio_fsync $fh	371	aio_fsync $fh
320	and return;	372	and return;
321		373
322	close $fh	374	close $fh
323	or return;	375	or return;
…		…
329	}	381	}
330		382
331	=back	383	=back
332		384
333	=cut	385	=cut
334
335	#############################################################################
336
337	package cf::path;
338
339	sub new {
340	my ($class, $path, $base) = @_;
341
342	$path = $path->as_string if ref $path;
343
344	my $self = bless { }, $class;
345
346	# {... are special paths that are not touched
347	# ?xxx/... are special absolute paths
348	# ?random/... random maps
349	# /! non-realised random map exit
350	# /... normal maps
351	# ~/... per-player maps without a specific player (DO NOT USE)
352	# ~user/... per-player map of a specific user
353
354	if ($path =~ /^{/) {
355	# fine as it is
356	} elsif ($path =~ s{^\?random/}{}) {
357	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
358	$self->{random} = cf::from_json $data;
359	} else {
360	if ($path =~ s{^~([^/]+)?}{}) {
361	$self->{user_rel} = 1;
362
363	if (defined $1) {
364	$self->{user} = $1;
365	} elsif ($base =~ m{^~([^/]+)/}) {
366	$self->{user} = $1;
367	} else {
368	warn "cannot resolve user-relative path without user <$path,$base>\n";
369	}
370	} elsif ($path =~ /^\//) {
371	# already absolute
372	} else {
373	$base =~ s{[^/]+/?$}{};
374	return $class->new ("$base/$path");
375	}
376
377	for ($path) {
378	redo if s{/\.?/}{/};
379	redo if s{/[^/]+/\.\./}{/};
380	}
381	}
382
383	$self->{path} = $path;
384
385	$self
386	}
387
388	# the name / primary key / in-game path
389	sub as_string {
390	my ($self) = @_;
391
392	$self->{user_rel} ? "~$self->{user}$self->{path}"
393	: $self->{random} ? "?random/$self->{path}"
394	: $self->{path}
395	}
396
397	# the displayed name, this is a one way mapping
398	sub visible_name {
399	my ($self) = @_;
400
401	# if (my $rmp = $self->{random}) {
402	# # todo: be more intelligent about this
403	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
404	# } else {
405	$self->as_string
406	# }
407	}
408
409	# escape the /'s in the path
410	sub _escaped_path {
411	# ∕ is U+2215
412	(my $path = $_[0]{path}) =~ s/\//∕/g;
413	$path
414	}
415
416	# the original (read-only) location
417	sub load_path {
418	my ($self) = @_;
419
420	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
421	}
422
423	# the temporary/swap location
424	sub save_path {
425	my ($self) = @_;
426
427	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
428	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
429	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
430	}
431
432	# the unique path, might be eq to save_path
433	sub uniq_path {
434	my ($self) = @_;
435
436	$self->{user_rel} || $self->{random}
437	? undef
438	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
439	}
440
441	# return random map parameters, or undef
442	sub random_map_params {
443	my ($self) = @_;
444
445	$self->{random}
446	}
447
448	# this is somewhat ugly, but style maps do need special treatment
449	sub is_style_map {
450	$_[0]{path} =~ m{^/styles/}
451	}
452
453	package cf;
454		386
455	#############################################################################	387	#############################################################################
456		388
457	=head2 ATTACHABLE OBJECTS	389	=head2 ATTACHABLE OBJECTS
458		390
…		…
584	our @CB_TYPE = (); # registry for type (cf-object class) based events	516	our @CB_TYPE = (); # registry for type (cf-object class) based events
585	our @CB_MAP = ();	517	our @CB_MAP = ();
586		518
587	my %attachment;	519	my %attachment;
588		520
		521	sub cf::attachable::thawer_merge {
		522	# simply override everything except _meta
		523	local $_[0]{_meta};
		524	%{$_[0]} = %{$_[1]};
		525	}
		526
589	sub _attach_cb($$$$) {	527	sub _attach_cb($$$$) {
590	my ($registry, $event, $prio, $cb) = @_;	528	my ($registry, $event, $prio, $cb) = @_;
591		529
592	use sort 'stable';	530	use sort 'stable';
593		531
…		…
764	# object support	702	# object support
765		703
766	sub reattach {	704	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	705	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	706	my ($obj) = @_;
		707
		708	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
769		709
770	my $registry = $obj->registry;	710	my $registry = $obj->registry;
771		711
772	@$registry = ();	712	@$registry = ();
773		713
…		…
820	$filename, length $$rdata, scalar @$objs;	760	$filename, length $$rdata, scalar @$objs;
821		761
822	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	762	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	763	chmod SAVE_MODE, $fh;
824	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	764	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
825	aio_fsync $fh;	765	aio_fsync $fh if $cf::USE_FSYNC;
826	close $fh;	766	close $fh;
827		767
828	if (@$objs) {	768	if (@$objs) {
829	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	769	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	770	chmod SAVE_MODE, $fh;
831	my $data = Storable::nfreeze { version => 1, objs => $objs };	771	my $data = Storable::nfreeze { version => 1, objs => $objs };
832	aio_write $fh, 0, (length $data), $data, 0;	772	aio_write $fh, 0, (length $data), $data, 0;
833	aio_fsync $fh;	773	aio_fsync $fh if $cf::USE_FSYNC;
834	close $fh;	774	close $fh;
835	aio_rename "$filename.pst~", "$filename.pst";	775	aio_rename "$filename.pst~", "$filename.pst";
836	}	776	}
837	} else {	777	} else {
838	aio_unlink "$filename.pst";	778	aio_unlink "$filename.pst";
…		…
844	}	784	}
845	} else {	785	} else {
846	aio_unlink $filename;	786	aio_unlink $filename;
847	aio_unlink "$filename.pst";	787	aio_unlink "$filename.pst";
848	}	788	}
		789
		790	#d##TODO# nuke non .map-files if exist
		791	if ($filename =~ s/\.map$//) {
		792	aio_unlink $filename;
		793	aio_unlink "$filename.pst";
		794	}
849	}	795	}
850	}	796	}
851		797
852	sub object_freezer_as_string {	798	sub object_freezer_as_string {
853	my ($rdata, $objs) = @_;	799	my ($rdata, $objs) = @_;
…		…
859		805
860	sub object_thawer_load {	806	sub object_thawer_load {
861	my ($filename) = @_;	807	my ($filename) = @_;
862		808
863	my ($data, $av);	809	my ($data, $av);
		810
		811	#d#TODO remove .map if file does not exist
		812	aio_stat $filename and $filename =~ s/\.map$//;
864		813
865	(aio_load $filename, $data) >= 0	814	(aio_load $filename, $data) >= 0
866	or return;	815	or return;
867		816
868	unless (aio_stat "$filename.pst") {	817	unless (aio_stat "$filename.pst") {
…		…
905	=cut	854	=cut
906		855
907	sub register_extcmd {	856	sub register_extcmd {
908	my ($name, $cb) = @_;	857	my ($name, $cb) = @_;
909		858
910	my $caller = caller;
911	#warn "registering extcmd '$name' to '$caller'";
912
913	$EXTCMD{$name} = [$cb, $caller];	859	$EXTCMD{$name} = $cb;
914	}	860	}
915		861
916	cf::player->attach (	862	cf::player->attach (
917	on_command => sub {	863	on_command => sub {
918	my ($pl, $name, $params) = @_;	864	my ($pl, $name, $params) = @_;
…		…
931		877
932	my $msg = eval { from_json $buf };	878	my $msg = eval { from_json $buf };
933		879
934	if (ref $msg) {	880	if (ref $msg) {
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
936	if (my %reply = $cb->[0]->($pl, $msg)) {	882	if (my %reply = $cb->($pl, $msg)) {
937	$pl->ext_reply ($msg->{msgid}, %reply);	883	$pl->ext_reply ($msg->{msgid}, %reply);
938	}	884	}
939	}	885	}
940	} else {	886	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
943		889
944	cf::override;	890	cf::override;
945	},	891	},
946	);	892	);
947		893
948	sub register {
949	my ($base, $pkg) = @_;
950
951	#TODO
952	}
953
954	sub load_extension {	894	sub load_extension {
955	my ($path) = @_;	895	my ($path) = @_;
956		896
957	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
958	my $base = $1;	898	my $base = $1;
959	my $pkg = $1;	899	my $pkg = $1;
960	$pkg =~ s/[^[:word:]]/_/g;	900	$pkg =~ s/[^[:word:]]/_/g;
961	$pkg = "ext::$pkg";	901	$pkg = "ext::$pkg";
962		902
963	warn "loading '$path' into '$pkg'\n";	903	warn "... loading '$path' into '$pkg'\n";
964		904
965	open my $fh, "<:utf8", $path	905	open my $fh, "<:utf8", $path
966	or die "$path: $!";	906	or die "$path: $!";
967		907
968	my $source =	908	my $source =
969	"package $pkg; use strict; use utf8;\n"	909	"package $pkg; use strict; use utf8;\n"
970	. "#line 1 \"$path\"\n{\n"	910	. "#line 1 \"$path\"\n{\n"
971	. (do { local $/; <$fh> })	911	. (do { local $/; <$fh> })
972	. "\n};\n1";	912	. "\n};\n1";
973		913
974	eval $source	914	unless (eval $source) {
975	or die $@ ? "$path: $@\n"	915	my $msg = $@ ? "$path: $@\n"
976	: "extension disabled.\n";	916	: "extension disabled.\n";
977		917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
978	push @exts, $pkg;	918	warn $@;
979	$ext_pkg{$base} = $pkg;	919	warn "mandatory extension failed to load, exiting.\n";
980		920	exit 1;
981	# no strict 'refs';	921	}
982	# @{"$pkg\::ISA"} = ext::;	922	die $@;
983
984	register $base, $pkg;
985	}
986
987	sub unload_extension {
988	my ($pkg) = @_;
989
990	warn "removing extension $pkg\n";
991
992	# remove hooks
993	#TODO
994	# for my $idx (0 .. $#PLUGIN_EVENT) {
995	# delete $hook[$idx]{$pkg};
996	# }	923	}
997		924
998	# remove commands	925	push @EXTS, $pkg;
999	for my $name (keys %COMMAND) {
1000	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1001
1002	if (@cb) {
1003	$COMMAND{$name} = \@cb;
1004	} else {
1005	delete $COMMAND{$name};
1006	}
1007	}
1008
1009	# remove extcmds
1010	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1011	delete $EXTCMD{$name};
1012	}
1013
1014	if (my $cb = $pkg->can ("unload")) {
1015	eval {
1016	$cb->($pkg);
1017	1
1018	} or warn "$pkg unloaded, but with errors: $@";
1019	}
1020
1021	Symbol::delete_package $pkg;
1022	}	926	}
1023		927
1024	sub load_extensions {	928	sub load_extensions {
1025	for my $ext (<$LIBDIR/*.ext>) {	929	for my $ext (<$LIBDIR/*.ext>) {
1026	next unless -r $ext;	930	next unless -r $ext;
…		…
1030	} or warn "$ext not loaded: $@";	934	} or warn "$ext not loaded: $@";
1031	}	935	}
1032	}	936	}
1033		937
1034	#############################################################################	938	#############################################################################
1035	# load/save/clean perl data associated with a map
1036
1037	*cf::mapsupport::on_clean = sub {
1038	my ($map) = @_;
1039
1040	my $path = $map->tmpname;
1041	defined $path or return;
1042
1043	unlink "$path.pst";
1044	};
1045
1046	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1047
1048	#############################################################################
1049	# load/save perl data associated with player->ob objects
1050
1051	sub all_objects(@) {
1052	@_, map all_objects ($_->inv), @_
1053	}
1054
1055	# TODO: compatibility cruft, remove when no longer needed
1056	cf::player->attach (
1057	on_load => sub {
1058	my ($pl, $path) = @_;
1059
1060	for my $o (all_objects $pl->ob) {
1061	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1062	$o->set_ob_key_value ("_perl_data");
1063
1064	%$o = %{ Storable::thaw pack "H*", $value };
1065	}
1066	}
1067	},
1068	);
1069
1070	#############################################################################
1071		939
1072	=head2 CORE EXTENSIONS	940	=head2 CORE EXTENSIONS
1073		941
1074	Functions and methods that extend core crossfire objects.	942	Functions and methods that extend core crossfire objects.
1075		943
		944	=cut
		945
		946	package cf::player;
		947
		948	use Coro::AIO;
		949
1076	=head3 cf::player	950	=head3 cf::player
1077		951
1078	=over 4	952	=over 4
1079		953
1080	=item cf::player::exists $login	954	=item cf::player::find $login
1081		955
1082	Returns true when the given account exists.	956	Returns the given player object, loading it if necessary (might block).
1083		957
1084	=cut	958	=cut
1085		959
1086	sub cf::player::exists($) {	960	sub playerdir($) {
1087	cf::player::find $_[0]	961	cf::localdir
1088	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	962	. "/"
		963	. cf::playerdir
		964	. "/"
		965	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		966	}
		967
		968	sub path($) {
		969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		970
		971	(playerdir $login) . "/$login.pl"
		972	}
		973
		974	sub find_active($) {
		975	$cf::PLAYER{$_[0]}
		976	and $cf::PLAYER{$_[0]}->active
		977	and $cf::PLAYER{$_[0]}
		978	}
		979
		980	sub exists($) {
		981	my ($login) = @_;
		982
		983	$cf::PLAYER{$login}
		984	or cf::sync_job { !aio_stat path $login }
		985	}
		986
		987	sub find($) {
		988	return $cf::PLAYER{$_[0]} || do {
		989	my $login = $_[0];
		990
		991	my $guard = cf::lock_acquire "user_find:$login";
		992
		993	$cf::PLAYER{$_[0]} || do {
		994	my $pl = load_pl path $login
		995	or return;
		996	$cf::PLAYER{$login} = $pl
		997	}
		998	}
		999	}
		1000
		1001	sub save($) {
		1002	my ($pl) = @_;
		1003
		1004	return if $pl->{deny_save};
		1005
		1006	my $path = path $pl;
		1007	my $guard = cf::lock_acquire "user_save:$path";
		1008
		1009	return if $pl->{deny_save};
		1010
		1011	aio_mkdir playerdir $pl, 0770;
		1012	$pl->{last_save} = $cf::RUNTIME;
		1013
		1014	$pl->save_pl ($path);
		1015	Coro::cede;
		1016	}
		1017
		1018	sub new($) {
		1019	my ($login) = @_;
		1020
		1021	my $self = create;
		1022
		1023	$self->ob->name ($login);
		1024	$self->{deny_save} = 1;
		1025
		1026	$cf::PLAYER{$login} = $self;
		1027
		1028	$self
		1029	}
		1030
		1031	=item $pl->quit_character
		1032
		1033	Nukes the player without looking back. If logged in, the connection will
		1034	be destroyed. May block for a long time.
		1035
		1036	=cut
		1037
		1038	sub quit_character {
		1039	my ($pl) = @_;
		1040
		1041	$pl->{deny_save} = 1;
		1042	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1043
		1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1045	$pl->deactivate;
		1046	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1047	$pl->ns->destroy if $pl->ns;
		1048
		1049	my $path = playerdir $pl;
		1050	my $temp = "$path~$cf::RUNTIME~deleting~";
		1051	aio_rename $path, $temp;
		1052	delete $cf::PLAYER{$pl->ob->name};
		1053	$pl->destroy;
		1054	IO::AIO::aio_rmtree $temp;
		1055	}
		1056
		1057	=item cf::player::list_logins
		1058
		1059	Returns am arrayref of all valid playernames in the system, can take a
		1060	while and may block, so not sync_job-capable, ever.
		1061
		1062	=cut
		1063
		1064	sub list_logins {
		1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1066	or return [];
		1067
		1068	my @logins;
		1069
		1070	for my $login (@$dirs) {
		1071	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1072	aio_read $fh, 0, 512, my $buf, 0 or next;
		1073	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1074
		1075	utf8::decode $login;
		1076	push @logins, $login;
		1077	}
		1078
		1079	\@logins
		1080	}
		1081
		1082	=item $player->maps
		1083
		1084	Returns an arrayref of map paths that are private for this
		1085	player. May block.
		1086
		1087	=cut
		1088
		1089	sub maps($) {
		1090	my ($pl) = @_;
		1091
		1092	$pl = ref $pl ? $pl->ob->name : $pl;
		1093
		1094	my $files = aio_readdir playerdir $pl
		1095	or return;
		1096
		1097	my @paths;
		1098
		1099	for (@$files) {
		1100	utf8::decode $_;
		1101	next if /\.(?:pl|pst)$/;
		1102	next unless /^$PATH_SEP/o;
		1103
		1104	push @paths, cf::map::normalise "~$pl/$_";
		1105	}
		1106
		1107	\@paths
1089	}	1108	}
1090		1109
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1110	=item $player->ext_reply ($msgid, $msgtype, %msg)
1092		1111
1093	Sends an ext reply to the player.	1112	Sends an ext reply to the player.
1094		1113
1095	=cut	1114	=cut
1096		1115
1097	sub cf::player::ext_reply($$$%) {	1116	sub ext_reply($$$%) {
1098	my ($self, $id, %msg) = @_;	1117	my ($self, $id, %msg) = @_;
1099		1118
1100	$msg{msgid} = $id;	1119	$msg{msgid} = $id;
1101		1120
1102	$self->send ("ext " . to_json \%msg);	1121	$self->send ("ext " . cf::to_json \%msg);
1103	}	1122	}
		1123
		1124	package cf;
1104		1125
1105	=back	1126	=back
1106		1127
1107		1128
1108	=head3 cf::map	1129	=head3 cf::map
…		…
1114	package cf::map;	1135	package cf::map;
1115		1136
1116	use Fcntl;	1137	use Fcntl;
1117	use Coro::AIO;	1138	use Coro::AIO;
1118		1139
		1140	use overload
		1141	'""' => \&as_string,
		1142	fallback => 1;
		1143
1119	our $MAX_RESET = 3600;	1144	our $MAX_RESET = 3600;
1120	our $DEFAULT_RESET = 3000;	1145	our $DEFAULT_RESET = 3000;
1121		1146
1122	sub generate_random_map {	1147	sub generate_random_map {
1123	my ($path, $rmp) = @_;	1148	my ($self, $rmp) = @_;
1124
1125	# mit "rum" bekleckern, nicht	1149	# mit "rum" bekleckern, nicht
1126	cf::map::_create_random_map	1150	$self->_create_random_map (
1127	$path,
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},	1154	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},	1155	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region})	1161	(cf::region::find $rmp->{region}), $rmp->{custom}
		1162	)
		1163	}
		1164
		1165	=item cf::map->register ($regex, $prio)
		1166
		1167	Register a handler for the map path matching the given regex at the
		1168	givne priority (higher is better, built-in handlers have priority 0, the
		1169	default).
		1170
		1171	=cut
		1172
		1173	sub register {
		1174	my (undef, $regex, $prio) = @_;
		1175	my $pkg = caller;
		1176
		1177	no strict;
		1178	push @{"$pkg\::ISA"}, __PACKAGE__;
		1179
		1180	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1181	}
		1182
		1183	# also paths starting with '/'
		1184	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1185
		1186	sub thawer_merge {
		1187	my ($self, $merge) = @_;
		1188
		1189	# we have to keep some variables in memory intact
		1190	local $self->{path};
		1191	local $self->{load_path};
		1192	local $self->{deny_save};
		1193	local $self->{deny_reset};
		1194
		1195	$self->SUPER::thawer_merge ($merge);
		1196	}
		1197
		1198	sub normalise {
		1199	my ($path, $base) = @_;
		1200
		1201	$path = "$path"; # make sure its a string
		1202
		1203	$path =~ s/\.map$//;
		1204
		1205	# map plan:
		1206	#
		1207	# /! non-realised random map exit (special hack!)
		1208	# {... are special paths that are not being touched
		1209	# ?xxx/... are special absolute paths
		1210	# ?random/... random maps
		1211	# /... normal maps
		1212	# ~user/... per-player map of a specific user
		1213
		1214	$path =~ s/$PATH_SEP/\//go;
		1215
		1216	# treat it as relative path if it starts with
		1217	# something that looks reasonable
		1218	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1219	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1220
		1221	$base =~ s{[^/]+/?$}{};
		1222	$path = "$base/$path";
		1223	}
		1224
		1225	for ($path) {
		1226	redo if s{//}{/};
		1227	redo if s{/\.?/}{/};
		1228	redo if s{/[^/]+/\.\./}{/};
		1229	}
		1230
		1231	$path
		1232	}
		1233
		1234	sub new_from_path {
		1235	my (undef, $path, $base) = @_;
		1236
		1237	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1238
		1239	$path = normalise $path, $base;
		1240
		1241	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1242	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1243	my $self = bless cf::map::new, $pkg;
		1244	$self->{path} = $path; $self->path ($path);
		1245	$self->init; # pass $1 etc.
		1246	return $self;
		1247	}
		1248	}
		1249
		1250	Carp::carp "unable to resolve path '$path' (base '$base').";
		1251	()
		1252	}
		1253
		1254	sub init {
		1255	my ($self) = @_;
		1256
		1257	$self
		1258	}
		1259
		1260	sub as_string {
		1261	my ($self) = @_;
		1262
		1263	"$self->{path}"
		1264	}
		1265
		1266	# the displayed name, this is a one way mapping
		1267	sub visible_name {
		1268	&as_string
		1269	}
		1270
		1271	# the original (read-only) location
		1272	sub load_path {
		1273	my ($self) = @_;
		1274
		1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1276	}
		1277
		1278	# the temporary/swap location
		1279	sub save_path {
		1280	my ($self) = @_;
		1281
		1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1284	}
		1285
		1286	# the unique path, undef == no special unique path
		1287	sub uniq_path {
		1288	my ($self) = @_;
		1289
		1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1139	}	1292	}
1140		1293
1141	# and all this just because we cannot iterate over	1294	# and all this just because we cannot iterate over
1142	# all maps in C++...	1295	# all maps in C++...
1143	sub change_all_map_light {	1296	sub change_all_map_light {
…		…
1145		1298
1146	$_->change_map_light ($change)	1299	$_->change_map_light ($change)
1147	for grep $_->outdoor, values %cf::MAP;	1300	for grep $_->outdoor, values %cf::MAP;
1148	}	1301	}
1149		1302
		1303	sub unlink_save {
		1304	my ($self) = @_;
		1305
		1306	utf8::encode (my $save = $self->save_path);
		1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1309
		1310	#d#TODO remove .map and also nuke
		1311	$save =~ s/\.map// or return;#d#
		1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1314	}
		1315
1150	sub try_load_header($) {	1316	sub load_header_from($) {
1151	my ($path) = @_;	1317	my ($self, $path) = @_;
1152		1318
1153	utf8::encode $path;	1319	utf8::encode $path;
1154	aio_open $path, O_RDONLY, 0	1320	#aio_open $path, O_RDONLY, 0
		1321	# or return;
		1322
		1323	$self->_load_header ($path)
1155	or return;	1324	or return;
1156		1325
1157	my $map = cf::map::new	1326	$self->{load_path} = $path;
		1327
		1328	1
		1329	}
		1330
		1331	sub load_header_orig {
		1332	my ($self) = @_;
		1333
		1334	$self->load_header_from ($self->load_path)
		1335	}
		1336
		1337	sub load_header_temp {
		1338	my ($self) = @_;
		1339
		1340	$self->load_header_from ($self->save_path)
		1341	}
		1342
		1343	sub prepare_temp {
		1344	my ($self) = @_;
		1345
		1346	$self->last_access ((delete $self->{last_access})
		1347	|| $cf::RUNTIME); #d#
		1348	# safety
		1349	$self->{instantiate_time} = $cf::RUNTIME
		1350	if $self->{instantiate_time} > $cf::RUNTIME;
		1351	}
		1352
		1353	sub prepare_orig {
		1354	my ($self) = @_;
		1355
		1356	$self->{load_original} = 1;
		1357	$self->{instantiate_time} = $cf::RUNTIME;
		1358	$self->last_access ($cf::RUNTIME);
		1359	$self->instantiate;
		1360	}
		1361
		1362	sub load_header {
		1363	my ($self) = @_;
		1364
		1365	if ($self->load_header_temp) {
		1366	$self->prepare_temp;
		1367	} else {
		1368	$self->load_header_orig
1158	or return;	1369	or return;
		1370	$self->prepare_orig;
		1371	}
1159		1372
1160	# for better error messages only, will be overwritten	1373	1
1161	$map->path ($path);
1162
1163	$map->load_header ($path)
1164	or return;
1165
1166	$map->{load_path} = $path;
1167
1168	$map
1169	}	1374	}
1170		1375
1171	sub find;	1376	sub find;
1172	sub find {	1377	sub find {
1173	my ($path, $origin) = @_;	1378	my ($path, $origin) = @_;
1174		1379
1175	#warn "find<$path,$origin>\n";#d#
1176
1177	$path = new cf::path $path, $origin && $origin->path;	1380	$path = normalise $path, $origin && $origin->path;
1178	my $key = $path->as_string;
1179		1381
1180	cf::lock_wait "map_find:$key";	1382	cf::lock_wait "map_find:$path";
1181		1383
1182	$cf::MAP{$key} || do {	1384	$cf::MAP{$path} || do {
1183	my $guard = cf::lock_acquire "map_find:$key";	1385	my $guard = cf::lock_acquire "map_find:$path";
1184		1386	my $map = new_from_path cf::map $path
1185	# do it the slow way
1186	my $map = try_load_header $path->save_path;
1187
1188	Coro::cede;
1189
1190	if ($map) {
1191	$map->last_access ((delete $map->{last_access})
1192	|| $cf::RUNTIME); #d#
1193	# safety
1194	$map->{instantiate_time} = $cf::RUNTIME
1195	if $map->{instantiate_time} > $cf::RUNTIME;
1196	} else {
1197	if (my $rmp = $path->random_map_params) {
1198	$map = generate_random_map $key, $rmp;
1199	} else {
1200	$map = try_load_header $path->load_path;
1201	}
1202
1203	$map or return;	1387	or return;
1204		1388
1205	$map->{load_original} = 1;
1206	$map->{instantiate_time} = $cf::RUNTIME;
1207	$map->last_access ($cf::RUNTIME);
1208	$map->instantiate;
1209
1210	# per-player maps become, after loading, normal maps
1211	$map->per_player (0) if $path->{user_rel};
1212	}
1213
1214	$map->path ($key);
1215	$map->{path} = $path;
1216	$map->{last_save} = $cf::RUNTIME;	1389	$map->{last_save} = $cf::RUNTIME;
1217		1390
1218	Coro::cede;	1391	$map->load_header
		1392	or return;
1219		1393
1220	if ($map->should_reset) {	1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1395	# doing this can freeze the server in a sync job, obviously
		1396	#$cf::WAIT_FOR_TICK->wait;
1221	$map->reset;	1397	$map->reset;
1222	undef $guard;	1398	undef $guard;
1223	$map = find $path	1399	return find $path;
1224	or return;
1225	}	1400	}
1226		1401
1227	$cf::MAP{$key} = $map	1402	$cf::MAP{$path} = $map
1228	}	1403	}
1229	}	1404	}
		1405
		1406	sub pre_load { }
		1407	sub post_load { }
1230		1408
1231	sub load {	1409	sub load {
1232	my ($self) = @_;	1410	my ($self) = @_;
1233		1411
		1412	local $self->{deny_reset} = 1; # loading can take a long time
		1413
1234	my $path = $self->{path};	1414	my $path = $self->{path};
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1415	my $guard = cf::lock_acquire "map_load:$path";
1236		1416
1237	return if $self->in_memory != cf::MAP_SWAPPED;	1417	return if $self->in_memory != cf::MAP_SWAPPED;
1238		1418
1239	$self->in_memory (cf::MAP_LOADING);	1419	$self->in_memory (cf::MAP_LOADING);
1240		1420
1241	$self->alloc;	1421	$self->alloc;
		1422
		1423	$self->pre_load;
		1424
1242	$self->load_objects ($self->{load_path}, 1)	1425	$self->_load_objects ($self->{load_path}, 1)
1243	or return;	1426	or return;
1244		1427
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1246	if delete $self->{load_original};	1429	if delete $self->{load_original};
1247		1430
1248	if (my $uniq = $path->uniq_path) {	1431	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	1432	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	1433	if (aio_open $uniq, O_RDONLY, 0) {
1251	$self->clear_unique_items;	1434	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	1435	$self->_load_objects ($uniq, 0);
1253	}	1436	}
1254	}	1437	}
1255		1438
1256	Coro::cede;	1439	Coro::cede;
1257		1440
1258	# now do the right thing for maps	1441	# now do the right thing for maps
1259	$self->link_multipart_objects;	1442	$self->link_multipart_objects;
1260		1443
1261	if ($self->{path}->is_style_map) {	1444	unless ($self->{deny_activate}) {
1262	$self->{deny_save} = 1;	1445	$self->decay_objects;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;	1446	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;	1447	$self->update_buttons;
		1448	Coro::cede;
1268	$self->set_darkness_map;	1449	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	1450	$self->difficulty ($self->estimate_difficulty)
1270	unless $self->difficulty;	1451	unless $self->difficulty;
		1452	Coro::cede;
1271	$self->activate;	1453	$self->activate;
1272	}	1454	}
1273		1455
1274	Coro::cede;	1456	$self->post_load;
1275		1457
1276	$self->in_memory (cf::MAP_IN_MEMORY);	1458	$self->in_memory (cf::MAP_IN_MEMORY);
		1459	}
		1460
		1461	sub customise_for {
		1462	my ($self, $ob) = @_;
		1463
		1464	return find "~" . $ob->name . "/" . $self->{path}
		1465	if $self->per_player;
		1466
		1467	$self
		1468	}
		1469
		1470	# find and load all maps in the 3x3 area around a map
		1471	sub load_diag {
		1472	my ($map) = @_;
		1473
		1474	my @diag; # diagonal neighbours
		1475
		1476	for (0 .. 3) {
		1477	my $neigh = $map->tile_path ($_)
		1478	or next;
		1479	$neigh = find $neigh, $map
		1480	or next;
		1481	$neigh->load;
		1482
		1483	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1484	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1485	}
		1486
		1487	for (@diag) {
		1488	my $neigh = find @$_
		1489	or next;
		1490	$neigh->load;
		1491	}
1277	}	1492	}
1278		1493
1279	sub find_sync {	1494	sub find_sync {
1280	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1281		1496
1282	cf::sync_job { cf::map::find $path, $origin }	1497	cf::sync_job { find $path, $origin }
1283	}	1498	}
1284		1499
1285	sub do_load_sync {	1500	sub do_load_sync {
1286	my ($map) = @_;	1501	my ($map) = @_;
1287		1502
1288	cf::sync_job { $map->load };	1503	cf::sync_job { $map->load };
1289	}	1504	}
1290		1505
		1506	our %MAP_PREFETCH;
		1507	our $MAP_PREFETCHER = undef;
		1508
		1509	sub find_async {
		1510	my ($path, $origin) = @_;
		1511
		1512	$path = normalise $path, $origin && $origin->{path};
		1513
		1514	if (my $map = $cf::MAP{$path}) {
		1515	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1516	}
		1517
		1518	undef $MAP_PREFETCH{$path};
		1519	$MAP_PREFETCHER ||= cf::async {
		1520	while (%MAP_PREFETCH) {
		1521	for my $path (keys %MAP_PREFETCH) {
		1522	my $map = find $path
		1523	or next;
		1524	$map->load;
		1525
		1526	delete $MAP_PREFETCH{$path};
		1527	}
		1528	}
		1529	undef $MAP_PREFETCHER;
		1530	};
		1531	$MAP_PREFETCHER->prio (6);
		1532
		1533	()
		1534	}
		1535
1291	sub save {	1536	sub save {
1292	my ($self) = @_;	1537	my ($self) = @_;
1293		1538
1294	my $lock = cf::lock_acquire "map_data:" . $self->path;	1539	my $lock = cf::lock_acquire "map_data:" . $self->path;
1295		1540
1296	$self->{last_save} = $cf::RUNTIME;	1541	$self->{last_save} = $cf::RUNTIME;
1297		1542
1298	return unless $self->dirty;	1543	return unless $self->dirty;
1299		1544
1300	my $save = $self->{path}->save_path; utf8::encode $save;	1545	my $save = $self->save_path; utf8::encode $save;
1301	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1546	my $uniq = $self->uniq_path; utf8::encode $uniq;
1302		1547
1303	$self->{load_path} = $save;	1548	$self->{load_path} = $save;
1304		1549
1305	return if $self->{deny_save};	1550	return if $self->{deny_save};
1306		1551
1307	local $self->{last_access} = $self->last_access;#d#	1552	local $self->{last_access} = $self->last_access;#d#
1308		1553
		1554	cf::async {
		1555	$_->contr->save for $self->players;
		1556	};
		1557
1309	if ($uniq) {	1558	if ($uniq) {
1310	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1311	$self->save_objects ($uniq, cf::IO_UNIQUES);	1560	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1312	} else {	1561	} else {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1314	}	1563	}
1315	}	1564	}
1316		1565
1317	sub swap_out {	1566	sub swap_out {
1318	my ($self) = @_;	1567	my ($self) = @_;
…		…
1332		1581
1333	sub reset_at {	1582	sub reset_at {
1334	my ($self) = @_;	1583	my ($self) = @_;
1335		1584
1336	# TODO: safety, remove and allow resettable per-player maps	1585	# TODO: safety, remove and allow resettable per-player maps
1337	return 1e99 if $self->{path}{user_rel};	1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
1338	return 1e99 if $self->{deny_reset};	1587	return 1e99 if $self->{deny_reset};
1339		1588
1340	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1341	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1342		1591
…		…
1347	my ($self) = @_;	1596	my ($self) = @_;
1348		1597
1349	$self->reset_at <= $cf::RUNTIME	1598	$self->reset_at <= $cf::RUNTIME
1350	}	1599	}
1351		1600
1352	sub unlink_save {
1353	my ($self) = @_;
1354
1355	utf8::encode (my $save = $self->{path}->save_path);
1356	aioreq_pri 3; IO::AIO::aio_unlink $save;
1357	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1358	}
1359
1360	sub rename {
1361	my ($self, $new_path) = @_;
1362
1363	$self->unlink_save;
1364
1365	delete $cf::MAP{$self->path};
1366	$self->{path} = new cf::path $new_path;
1367	$self->path ($self->{path}->as_string);
1368	$cf::MAP{$self->path} = $self;
1369
1370	$self->save;
1371	}
1372
1373	sub reset {	1601	sub reset {
1374	my ($self) = @_;	1602	my ($self) = @_;
1375		1603
1376	my $lock = cf::lock_acquire "map_data:" . $self->path;	1604	my $lock = cf::lock_acquire "map_data:$self->{path}";
1377		1605
1378	return if $self->players;	1606	return if $self->players;
1379	return if $self->{path}{user_rel};#d#	1607	return if $self->isa ("ext::map_per_player");#d#
1380		1608
1381	warn "resetting map ", $self->path;#d#	1609	warn "resetting map ", $self->path;#d#
1382		1610
1383	delete $cf::MAP{$self->path};	1611	delete $cf::MAP{$self->path};
		1612
		1613	$self->in_memory (cf::MAP_SWAPPED);
		1614	$self->clear;
1384		1615
1385	$_->clear_links_to ($self) for values %cf::MAP;	1616	$_->clear_links_to ($self) for values %cf::MAP;
1386		1617
1387	$self->unlink_save;	1618	$self->unlink_save;
1388	$self->destroy;	1619	$self->destroy;
…		…
1391	my $nuke_counter = "aaaa";	1622	my $nuke_counter = "aaaa";
1392		1623
1393	sub nuke {	1624	sub nuke {
1394	my ($self) = @_;	1625	my ($self) = @_;
1395		1626
		1627	delete $cf::MAP{$self->path};
		1628
		1629	$self->unlink_save;
		1630
		1631	bless $self, "cf::map";
		1632	delete $self->{deny_reset};
1396	$self->{deny_save} = 1;	1633	$self->{deny_save} = 1;
1397	$self->reset_timeout (1);	1634	$self->reset_timeout (1);
1398	$self->rename ("{nuke}/" . ($nuke_counter++));	1635	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1636
		1637	$cf::MAP{$self->path} = $self;
		1638
1399	$self->reset; # polite request, might not happen	1639	$self->reset; # polite request, might not happen
1400	}	1640	}
1401		1641
1402	sub customise_for {	1642	=item cf::map::unique_maps
1403	my ($map, $ob) = @_;
1404		1643
1405	if ($map->per_player) {	1644	Returns an arrayref of paths of all shared maps that have
1406	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1645	instantiated unique items. May block.
1407	}
1408		1646
1409	$map	1647	=cut
1410	}
1411		1648
1412	sub emergency_save {	1649	sub unique_maps() {
1413	my $freeze_guard = cf::freeze_mainloop;	1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1651	or return;
1414		1652
1415	warn "enter emergency map save\n";	1653	my @paths;
1416		1654
1417	cf::sync_job {	1655	for (@$files) {
1418	warn "begin emergency map save\n";	1656	utf8::decode $_;
1419	$_->save for values %cf::MAP;	1657	next if /\.pst$/;
		1658	next unless /^$PATH_SEP/o;
		1659
		1660	push @paths, cf::map::normalise $_;
1420	};	1661	}
1421		1662
1422	warn "end emergency map save\n";	1663	\@paths
1423	}	1664	}
1424		1665
1425	package cf;	1666	package cf;
1426		1667
1427	=back	1668	=back
1428		1669
		1670	=head3 cf::object
		1671
		1672	=cut
		1673
		1674	package cf::object;
		1675
		1676	=over 4
		1677
		1678	=item $ob->inv_recursive
		1679
		1680	Returns the inventory of the object _and_ their inventories, recursively.
		1681
		1682	=cut
		1683
		1684	sub inv_recursive_;
		1685	sub inv_recursive_ {
		1686	map { $_, inv_recursive_ $_->inv } @_
		1687	}
		1688
		1689	sub inv_recursive {
		1690	inv_recursive_ inv $_[0]
		1691	}
		1692
		1693	package cf;
		1694
		1695	=back
1429		1696
1430	=head3 cf::object::player	1697	=head3 cf::object::player
1431		1698
1432	=over 4	1699	=over 4
1433		1700
…		…
1473		1740
1474	=item $player_object->enter_link	1741	=item $player_object->enter_link
1475		1742
1476	Freezes the player and moves him/her to a special map (C<{link}>).	1743	Freezes the player and moves him/her to a special map (C<{link}>).
1477		1744
1478	The player should be reaosnably safe there for short amounts of time. You	1745	The player should be reasonably safe there for short amounts of time. You
1479	I<MUST> call C<leave_link> as soon as possible, though.	1746	I<MUST> call C<leave_link> as soon as possible, though.
1480		1747
		1748	Will never block.
		1749
1481	=item $player_object->leave_link ($map, $x, $y)	1750	=item $player_object->leave_link ($map, $x, $y)
1482		1751
1483	Moves the player out of the specila link map onto the given map. If the	1752	Moves the player out of the special C<{link}> map onto the specified
1484	map is not valid (or omitted), the player will be moved back to the	1753	map. If the map is not valid (or omitted), the player will be moved back
1485	location he/she was before the call to C<enter_link>, or, if that fails,	1754	to the location he/she was before the call to C<enter_link>, or, if that
1486	to the emergency map position.	1755	fails, to the emergency map position.
1487		1756
1488	Might block.	1757	Might block.
1489		1758
1490	=cut	1759	=cut
		1760
		1761	sub link_map {
		1762	unless ($LINK_MAP) {
		1763	$LINK_MAP = cf::map::find "{link}"
		1764	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1765	$LINK_MAP->load;
		1766	}
		1767
		1768	$LINK_MAP
		1769	}
1491		1770
1492	sub cf::object::player::enter_link {	1771	sub cf::object::player::enter_link {
1493	my ($self) = @_;	1772	my ($self) = @_;
1494		1773
1495	$self->deactivate_recursive;	1774	$self->deactivate_recursive;
1496		1775
1497	return if $self->map == $LINK_MAP;	1776	return if UNIVERSAL::isa $self->map, "ext::map_link";
1498		1777
1499	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1500	if $self->map;	1779	if $self->map;
1501		1780
1502	$self->enter_map ($LINK_MAP, 20, 20);	1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1503	}	1782	}
1504		1783
1505	sub cf::object::player::leave_link {	1784	sub cf::object::player::leave_link {
1506	my ($self, $map, $x, $y) = @_;	1785	my ($self, $map, $x, $y) = @_;
1507		1786
…		…
1525	# use -1 or undef as default coordinates, not 0, 0	1804	# use -1 or undef as default coordinates, not 0, 0
1526	($x, $y) = ($map->enter_x, $map->enter_y)	1805	($x, $y) = ($map->enter_x, $map->enter_y)
1527	if $x <=0 && $y <= 0;	1806	if $x <=0 && $y <= 0;
1528		1807
1529	$map->load;	1808	$map->load;
		1809	$map->load_diag;
1530		1810
		1811	return unless $self->contr->active;
1531	$self->activate_recursive;	1812	$self->activate_recursive;
1532	$self->enter_map ($map, $x, $y);	1813	$self->enter_map ($map, $x, $y);
1533	}	1814	}
1534		1815
1535	cf::player->attach (	1816	cf::player->attach (
…		…
1547	my ($pl) = @_;	1828	my ($pl) = @_;
1548		1829
1549	# try to abort aborted map switching on player login :)	1830	# try to abort aborted map switching on player login :)
1550	# should happen only on crashes	1831	# should happen only on crashes
1551	if ($pl->ob->{_link_pos}) {	1832	if ($pl->ob->{_link_pos}) {
1552
1553	$pl->ob->enter_link;	1833	$pl->ob->enter_link;
1554	(async {	1834	(async {
1555	# we need this sleep as the login has a concurrent enter_exit running	1835	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn	1836	# and this sleep increases chances of the player not ending up in scorn
1557	$pl->ob->reply (undef,	1837	$pl->ob->reply (undef,
…		…
1573	my ($self, $path, $x, $y) = @_;	1853	my ($self, $path, $x, $y) = @_;
1574		1854
1575	$self->enter_link;	1855	$self->enter_link;
1576		1856
1577	(async {	1857	(async {
1578	$path = new cf::path $path;	1858	my $map = eval {
1579
1580	my $map = cf::map::find $path->as_string;	1859	my $map = cf::map::find $path;
1581	$map = $map->customise_for ($self) if $map;	1860	$map = $map->customise_for ($self) if $map;
1582		1861	$map
1583	# warn "entering ", $map->path, " at ($x, $y)\n"	1862	} or
1584	# if $map;
1585
1586	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1587		1864
1588	$self->leave_link ($map, $x, $y);	1865	$self->leave_link ($map, $x, $y);
1589	})->prio (1);	1866	})->prio (1);
1590	}	1867	}
1591		1868
…		…
1595		1872
1596	sub parse_random_map_params {	1873	sub parse_random_map_params {
1597	my ($spec) = @_;	1874	my ($spec) = @_;
1598		1875
1599	my $rmp = { # defaults	1876	my $rmp = { # defaults
1600	xsize => 10,	1877	xsize => (cf::rndm 15, 40),
1601	ysize => 10,	1878	ysize => (cf::rndm 15, 40),
		1879	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1880	#layout => string,
1602	};	1881	};
1603		1882
1604	for (split /\n/, $spec) {	1883	for (split /\n/, $spec) {
1605	my ($k, $v) = split /\s+/, $_, 2;	1884	my ($k, $v) = split /\s+/, $_, 2;
1606		1885
…		…
1610	$rmp	1889	$rmp
1611	}	1890	}
1612		1891
1613	sub prepare_random_map {	1892	sub prepare_random_map {
1614	my ($exit) = @_;	1893	my ($exit) = @_;
		1894
		1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1615		1896
1616	# all this does is basically replace the /! path by	1897	# all this does is basically replace the /! path by
1617	# a new random map path (?random/...) with a seed	1898	# a new random map path (?random/...) with a seed
1618	# that depends on the exit object	1899	# that depends on the exit object
1619		1900
1620	my $rmp = parse_random_map_params $exit->msg;	1901	my $rmp = parse_random_map_params $exit->msg;
1621		1902
1622	if ($exit->map) {	1903	if ($exit->map) {
1623	$rmp->{region} = $exit->map->region_name;	1904	$rmp->{region} = $exit->region->name;
1624	$rmp->{origin_map} = $exit->map->path;	1905	$rmp->{origin_map} = $exit->map->path;
1625	$rmp->{origin_x} = $exit->x;	1906	$rmp->{origin_x} = $exit->x;
1626	$rmp->{origin_y} = $exit->y;	1907	$rmp->{origin_y} = $exit->y;
1627	}	1908	}
1628		1909
1629	$rmp->{random_seed} ||= $exit->random_seed;	1910	$rmp->{random_seed} ||= $exit->random_seed;
1630		1911
1631	my $data = cf::to_json $rmp;	1912	my $data = cf::to_json $rmp;
1632	my $md5 = Digest::MD5::md5_hex $data;	1913	my $md5 = Digest::MD5::md5_hex $data;
		1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1633		1915
1634	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1635	aio_write $fh, 0, (length $data), $data, 0;	1917	aio_write $fh, 0, (length $data), $data, 0;
		1918	undef $fh;
		1919	aio_rename "$meta~", $meta;
1636		1920
1637	$exit->slaying ("?random/$md5");	1921	$exit->slaying ("?random/$md5");
1638	$exit->msg (undef);	1922	$exit->msg (undef);
1639	}	1923	}
1640	}	1924	}
1641		1925
1642	sub cf::object::player::enter_exit {	1926	sub cf::object::player::enter_exit {
1643	my ($self, $exit) = @_;	1927	my ($self, $exit) = @_;
1644		1928
1645	return unless $self->type == cf::PLAYER;	1929	return unless $self->type == cf::PLAYER;
		1930
		1931	if ($exit->slaying eq "/!") {
		1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1933	cf::sync_job { prepare_random_map $exit };
		1934	}
		1935
		1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1937	my $hp = $exit->stats->hp;
		1938	my $sp = $exit->stats->sp;
1646		1939
1647	$self->enter_link;	1940	$self->enter_link;
1648		1941
1649	(async {	1942	(async {
1650	$self->deactivate_recursive; # just to be sure	1943	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	1944	unless (eval {
1652	prepare_random_map $exit	1945	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1657		1946
1658	1;	1947	1;
1659	}) {	1948	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	1949	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "I'll try to bring you back to the map you were before. "	1950	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	1951	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	1952	cf::NDI_UNIQUE | cf::NDI_RED);
1664		1953
1665	warn "ERROR in enter_exit: $@";	1954	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	1955	$self->leave_link;
1667	}	1956	}
…		…
1722	# get handled first	2011	# get handled first
1723	my $queue = delete $ns->{query_queue}	2012	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	2013	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		2014
1726	(shift @$queue)->[1]->($msg);	2015	(shift @$queue)->[1]->($msg);
		2016	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2017
1728	push @{ $ns->{query_queue} }, @$queue;	2018	push @{ $ns->{query_queue} }, @$queue;
1729		2019
1730	if (@{ $ns->{query_queue} } == @$queue) {	2020	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2021	if (@$queue) {
…		…
1950	sub db_sync() {	2240	sub db_sync() {
1951	db_save if $dirty;	2241	db_save if $dirty;
1952	undef $dirty;	2242	undef $dirty;
1953	}	2243	}
1954		2244
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2245	my $idle = Event->idle (
1956	db_sync;	2246	reentrant => 0,
		2247	min => 10,
		2248	max => 20,
		2249	repeat => 0,
		2250	data => WF_AUTOCANCEL,
		2251	cb => \&db_sync,
1957	});	2252	);
1958		2253
1959	sub db_dirty() {	2254	sub db_dirty() {
1960	$dirty = 1;	2255	$dirty = 1;
1961	$idle->start;	2256	$idle->start;
1962	}	2257	}
…		…
1983	},	2278	},
1984	);	2279	);
1985	}	2280	}
1986		2281
1987	#############################################################################	2282	#############################################################################
1988	# the server's main()	2283	# the server's init and main functions
		2284
		2285	sub load_resources {
		2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2287	or die "unable to load regions file\n";#d#
		2288	}
1989		2289
1990	sub cfg_load {	2290	sub cfg_load {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	2291	open my $fh, "<:utf8", cf::confdir . "/config"
1992	or return;	2292	or return;
1993		2293
…		…
1999	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2299	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2000	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2300	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2001		2301
2002	if (exists $CFG{mlockall}) {	2302	if (exists $CFG{mlockall}) {
2003	eval {	2303	eval {
2004	$CFG{mlockall} ? &mlockall : &munlockall	2304	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2005	and die "WARNING: m(un)lockall failed: $!\n";	2305	and die "WARNING: m(un)lockall failed: $!\n";
2006	};	2306	};
2007	warn $@ if $@;	2307	warn $@ if $@;
2008	}	2308	}
		2309	}
		2310
		2311	sub init {
		2312	load_resources;
2009	}	2313	}
2010		2314
2011	sub main {	2315	sub main {
2012	# we must not ever block the main coroutine	2316	# we must not ever block the main coroutine
2013	local $Coro::idle = sub {	2317	local $Coro::idle = sub {
2014	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2318	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2319	(async {
2015	async { Event::one_event };	2320	Event::one_event;
		2321	})->prio (Coro::PRIO_MAX);
2016	};	2322	};
2017		2323
2018	cfg_load;	2324	cfg_load;
2019	db_load;	2325	db_load;
2020	load_extensions;	2326	load_extensions;
		2327
		2328	$TICK_WATCHER->start;
2021	Event::loop;	2329	Event::loop;
2022	}	2330	}
2023		2331
2024	#############################################################################	2332	#############################################################################
2025	# initialisation	2333	# initialisation and cleanup
		2334
		2335	# install some emergency cleanup handlers
		2336	BEGIN {
		2337	for my $signal (qw(INT HUP TERM)) {
		2338	Event->signal (
		2339	reentrant => 0,
		2340	data => WF_AUTOCANCEL,
		2341	signal => $signal,
		2342	prio => 0,
		2343	cb => sub {
		2344	cf::cleanup "SIG$signal";
		2345	},
		2346	);
		2347	}
		2348	}
		2349
		2350	sub emergency_save() {
		2351	my $freeze_guard = cf::freeze_mainloop;
		2352
		2353	warn "enter emergency perl save\n";
		2354
		2355	cf::sync_job {
		2356	# use a peculiar iteration method to avoid tripping on perl
		2357	# refcount bugs in for. also avoids problems with players
		2358	# and maps saved/destroyed asynchronously.
		2359	warn "begin emergency player save\n";
		2360	for my $login (keys %cf::PLAYER) {
		2361	my $pl = $cf::PLAYER{$login} or next;
		2362	$pl->valid or next;
		2363	$pl->save;
		2364	}
		2365	warn "end emergency player save\n";
		2366
		2367	warn "begin emergency map save\n";
		2368	for my $path (keys %cf::MAP) {
		2369	my $map = $cf::MAP{$path} or next;
		2370	$map->valid or next;
		2371	$map->save;
		2372	}
		2373	warn "end emergency map save\n";
		2374	};
		2375
		2376	warn "leave emergency perl save\n";
		2377	}
2026		2378
2027	sub reload() {	2379	sub reload() {
2028	# can/must only be called in main	2380	# can/must only be called in main
2029	if ($Coro::current != $Coro::main) {	2381	if ($Coro::current != $Coro::main) {
2030	warn "can only reload from main coroutine\n";	2382	warn "can only reload from main coroutine";
2031	return;	2383	return;
2032	}	2384	}
2033		2385
2034	warn "reloading...";	2386	warn "reloading...";
2035		2387
2036	my $guard = freeze_mainloop;	2388	warn "cancelling server ticker";
		2389	$TICK_WATCHER->cancel;
		2390
2037	cf::emergency_save;	2391	cf::emergency_save;
2038		2392
2039	eval {	2393	eval {
2040	# if anything goes wrong in here, we should simply crash as we already saved	2394	# if anything goes wrong in here, we should simply crash as we already saved
2041		2395
2042	# cancel all watchers	2396	warn "syncing database to disk";
		2397	cf::db_sync;
		2398
		2399	warn "cancelling all WF_AUTOCANCEL watchers";
2043	for (Event::all_watchers) {	2400	for (Event::all_watchers) {
2044	$_->cancel if $_->data & WF_AUTOCANCEL;	2401	$_->cancel if $_->data & WF_AUTOCANCEL;
2045	}	2402	}
2046		2403
		2404	warn "flushing outstanding aio requests";
		2405	for (;;) {
		2406	IO::AIO::flush;
		2407	Coro::cede;
		2408	last unless IO::AIO::nreqs;
		2409	warn "iterate...";
		2410	}
		2411
2047	# cancel all extension coros	2412	warn "cancelling all extension coros";
2048	$_->cancel for values %EXT_CORO;	2413	$_->cancel for values %EXT_CORO;
2049	%EXT_CORO = ();	2414	%EXT_CORO = ();
2050		2415
2051	# unload all extensions	2416	warn "removing commands";
2052	for (@exts) {	2417	%COMMAND = ();
		2418
		2419	warn "removing ext commands";
		2420	%EXTCMD = ();
		2421
		2422	warn "unloading/nuking all extensions";
		2423	for my $pkg (@EXTS) {
2053	warn "unloading <$_>";	2424	warn "... unloading $pkg";
2054	unload_extension $_;	2425
		2426	if (my $cb = $pkg->can ("unload")) {
		2427	eval {
		2428	$cb->($pkg);
		2429	1
		2430	} or warn "$pkg unloaded, but with errors: $@";
2055	}	2431	}
2056		2432
		2433	warn "... nuking $pkg";
		2434	Symbol::delete_package $pkg;
		2435	}
		2436
2057	# unload all modules loaded from $LIBDIR	2437	warn "unloading all perl modules loaded from $LIBDIR";
2058	while (my ($k, $v) = each %INC) {	2438	while (my ($k, $v) = each %INC) {
2059	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2439	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2060		2440
2061	warn "removing <$k>";	2441	warn "... unloading $k";
2062	delete $INC{$k};	2442	delete $INC{$k};
2063		2443
2064	$k =~ s/\.pm$//;	2444	$k =~ s/\.pm$//;
2065	$k =~ s/\//::/g;	2445	$k =~ s/\//::/g;
2066		2446
…		…
2069	}	2449	}
2070		2450
2071	Symbol::delete_package $k;	2451	Symbol::delete_package $k;
2072	}	2452	}
2073		2453
2074	# sync database to disk
2075	cf::db_sync;
2076	IO::AIO::flush;
2077
2078	# get rid of safe::, as good as possible	2454	warn "getting rid of safe::, as good as possible";
2079	Symbol::delete_package "safe::$_"	2455	Symbol::delete_package "safe::$_"
2080	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2081		2457
2082	# remove register_script_function callbacks
2083	# TODO
2084
2085	# unload cf.pm "a bit"	2458	warn "unloading cf.pm \"a bit\"";
2086	delete $INC{"cf.pm"};	2459	delete $INC{"cf.pm"};
2087		2460
2088	# don't, removes xs symbols, too,	2461	# don't, removes xs symbols, too,
2089	# and global variables created in xs	2462	# and global variables created in xs
2090	#Symbol::delete_package __PACKAGE__;	2463	#Symbol::delete_package __PACKAGE__;
2091		2464
2092	# reload cf.pm	2465	warn "unload completed, starting to reload now";
		2466
2093	warn "reloading cf.pm";	2467	warn "reloading cf.pm";
2094	require cf;	2468	require cf;
2095	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2096		2470
2097	# load config and database again	2471	warn "loading config and database again";
2098	cf::cfg_load;	2472	cf::cfg_load;
2099	cf::db_load;	2473	cf::db_load;
2100		2474
2101	# load extensions
2102	warn "load extensions";	2475	warn "loading extensions";
2103	cf::load_extensions;	2476	cf::load_extensions;
2104		2477
2105	# reattach attachments to objects	2478	warn "reattaching attachments to objects/players";
2106	warn "reattach";
2107	_global_reattach;	2479	_global_reattach;
		2480	warn "reattaching attachments to maps";
		2481	reattach $_ for values %MAP;
		2482
		2483	warn "loading reloadable resources";
		2484	load_resources;
		2485
		2486	warn "restarting server ticker";
		2487
		2488	$TICK_WATCHER->start;
2108	};	2489	};
2109		2490
2110	if ($@) {	2491	if ($@) {
2111	warn $@;	2492	warn $@;
2112	warn "error while reloading, exiting.";	2493	warn "error while reloading, exiting.";
2113	exit 1;	2494	exit 1;
2114	}	2495	}
2115		2496
2116	warn "reloaded successfully";	2497	warn "reloaded";
2117	};	2498	};
2118		2499
2119	#############################################################################	2500	our $RELOAD_WATCHER; # used only during reload
2120
2121	unless ($LINK_MAP) {
2122	$LINK_MAP = cf::map::new;
2123
2124	$LINK_MAP->width (41);
2125	$LINK_MAP->height (41);
2126	$LINK_MAP->alloc;
2127	$LINK_MAP->path ("{link}");
2128	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2129	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2130
2131	# dirty hack because... archetypes are not yet loaded
2132	Event->timer (
2133	after => 2,
2134	cb => sub {
2135	$_[0]->w->cancel;
2136
2137	# provide some exits "home"
2138	my $exit = cf::object::new "exit";
2139
2140	$exit->slaying ($EMERGENCY_POSITION->[0]);
2141	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2142	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2143
2144	$LINK_MAP->insert ($exit->clone, 19, 19);
2145	$LINK_MAP->insert ($exit->clone, 19, 20);
2146	$LINK_MAP->insert ($exit->clone, 19, 21);
2147	$LINK_MAP->insert ($exit->clone, 20, 19);
2148	$LINK_MAP->insert ($exit->clone, 20, 21);
2149	$LINK_MAP->insert ($exit->clone, 21, 19);
2150	$LINK_MAP->insert ($exit->clone, 21, 20);
2151	$LINK_MAP->insert ($exit->clone, 21, 21);
2152
2153	$exit->destroy;
2154	});
2155
2156	$LINK_MAP->{deny_save} = 1;
2157	$LINK_MAP->{deny_reset} = 1;
2158
2159	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2160	}
2161
2162	register "<global>", __PACKAGE__;
2163		2501
2164	register_command "reload" => sub {	2502	register_command "reload" => sub {
2165	my ($who, $arg) = @_;	2503	my ($who, $arg) = @_;
2166		2504
2167	if ($who->flag (FLAG_WIZ)) {	2505	if ($who->flag (FLAG_WIZ)) {
2168	$who->message ("start of reload.");	2506	$who->message ("reloading server.");
		2507
		2508	# doing reload synchronously and two reloads happen back-to-back,
		2509	# coro crashes during coro_state_free->destroy here.
		2510
		2511	$RELOAD_WATCHER ||= Event->timer (
		2512	reentrant => 0,
		2513	after => 0,
		2514	data => WF_AUTOCANCEL,
		2515	cb => sub {
2169	reload;	2516	reload;
2170	$who->message ("end of reload.");	2517	undef $RELOAD_WATCHER;
		2518	},
		2519	);
2171	}	2520	}
2172	};	2521	};
2173		2522
2174	unshift @INC, $LIBDIR;	2523	unshift @INC, $LIBDIR;
		2524
		2525	my $bug_warning = 0;
2175		2526
2176	$TICK_WATCHER = Event->timer (	2527	$TICK_WATCHER = Event->timer (
2177	reentrant => 0,	2528	reentrant => 0,
		2529	parked => 1,
2178	prio => 0,	2530	prio => 0,
2179	at => $NEXT_TICK || $TICK,	2531	at => $NEXT_TICK || $TICK,
2180	data => WF_AUTOCANCEL,	2532	data => WF_AUTOCANCEL,
2181	cb => sub {	2533	cb => sub {
		2534	if ($Coro::current != $Coro::main) {
		2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2536	unless ++$bug_warning > 10;
		2537	return;
		2538	}
		2539
		2540	$NOW = Event::time;
		2541
2182	cf::server_tick; # one server iteration	2542	cf::server_tick; # one server iteration
2183	$RUNTIME += $TICK;	2543	$RUNTIME += $TICK;
2184	$NEXT_TICK += $TICK;	2544	$NEXT_TICK += $TICK;
		2545
		2546	$WAIT_FOR_TICK->broadcast;
		2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2548
		2549	Event::sweep;
		2550	Coro::cede_notself;
		2551
		2552	# my $AFTER = Event::time;
		2553	# warn $AFTER - $NOW;#d#
2185		2554
2186	# if we are delayed by four ticks or more, skip them all	2555	# if we are delayed by four ticks or more, skip them all
2187	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2188		2557
2189	$TICK_WATCHER->at ($NEXT_TICK);	2558	$TICK_WATCHER->at ($NEXT_TICK);
2190	$TICK_WATCHER->start;	2559	$TICK_WATCHER->start;
2191	},	2560	},
2192	);	2561	);
2193		2562
		2563	{
		2564	BDB::max_poll_time $TICK * 0.1;
		2565	$BDB_POLL_WATCHER = Event->io (
		2566	reentrant => 0,
		2567	fd => BDB::poll_fileno,
		2568	poll => 'r',
		2569	prio => 0,
		2570	data => WF_AUTOCANCEL,
		2571	cb => \&BDB::poll_cb,
		2572	);
		2573	BDB::min_parallel 8;
		2574
		2575	BDB::set_sync_prepare {
		2576	my $status;
		2577	my $current = $Coro::current;
		2578	(
		2579	sub {
		2580	$status = $!;
		2581	$current->ready; undef $current;
		2582	},
		2583	sub {
		2584	Coro::schedule while defined $current;
		2585	$! = $status;
		2586	},
		2587	)
		2588	};
		2589
		2590	unless ($DB_ENV) {
		2591	$DB_ENV = BDB::db_env_create;
		2592
		2593	cf::sync_job {
		2594	BDB::db_env_open
		2595	$DB_ENV,
		2596	$BDB_ENV_DIR,
		2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2599	0666;
		2600
		2601	cf::cleanup "$!" if $!;
		2602
		2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2604	$DB_ENV->set_lk_detect;
		2605	};
		2606	}
		2607	}
		2608
		2609	{
		2610	IO::AIO::min_parallel 8;
		2611
		2612	undef $Coro::AIO::WATCHER;
2194	IO::AIO::max_poll_time $TICK * 0.2;	2613	IO::AIO::max_poll_time $TICK * 0.1;
2195		2614	$AIO_POLL_WATCHER = Event->io (
2196	Event->io (	2615	reentrant => 0,
2197	fd => IO::AIO::poll_fileno,	2616	fd => IO::AIO::poll_fileno,
2198	poll => 'r',	2617	poll => 'r',
2199	prio => 5,	2618	prio => 6,
2200	data => WF_AUTOCANCEL,	2619	data => WF_AUTOCANCEL,
2201	cb => \&IO::AIO::poll_cb,	2620	cb => \&IO::AIO::poll_cb,
2202	);	2621	);
		2622	}
2203		2623
2204	Event->timer (	2624	$WRITE_RUNTIME_WATCHER = Event->timer (
		2625	reentrant => 0,
2205	data => WF_AUTOCANCEL,	2626	data => WF_AUTOCANCEL,
2206	after => 0,	2627	after => 1,
2207	interval => 10,	2628	interval => 10,
2208	cb => sub {	2629	prio => 6, # keep it lowest so it acts like a watchdog
2209	(Coro::unblock_sub {	2630	cb => Coro::unblock_sub {
2210	write_runtime	2631	write_runtime
2211	or warn "ERROR: unable to write runtime file: $!";	2632	or warn "ERROR: unable to write runtime file: $!";
2212	})->();
2213	},	2633	},
2214	);	2634	);
2215		2635
2216	END { cf::emergency_save }	2636	END { cf::emergency_save }
2217		2637

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