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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.191 by root, Tue Jan 23 01:05:18 2007 UTC vs.
Revision 1.255 by root, Thu Apr 19 16:23:47 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.4 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
38		51
39	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	53	our %EXTCMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
43		56
		57	our $RELOAD; # number of reloads so far
44	our @EVENT;	58	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		59
47	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	73	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	74	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	76	our $NEXT_TICK;
52	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
53		82
54	our %CFG;	83	our %CFG;
55		84
56	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	86	our $RUNTIME;
58		87
59	our %PLAYER; # all users	88	our %PLAYER; # all users
60	our %MAP; # all maps	89	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	90	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
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		91
67	# used to convert map paths into valid unix filenames by replacing / by ∕	92	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		94
70	binmode STDOUT;	95	binmode STDOUT;
71	binmode STDERR;	96	binmode STDERR;
72		97
73	# read virtual server time, if available	98	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
78	}	103	}
79		104
80	mkdir cf::localdir;	105	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		107
86	our $EMERGENCY_POSITION;	108	our $EMERGENCY_POSITION;
		109
		110	sub cf::map::normalise;
87		111
88	#############################################################################	112	#############################################################################
89		113
90	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
91		115
…		…
98	=item $cf::RUNTIME	122	=item $cf::RUNTIME
99		123
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	124	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	125	every server tick.
102		126
103	=item $cf::LIBDIR	127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		130
105	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		133	unique-items directory, player file directory, random maps directory and
		134	database environment.
107		135
108	=item $cf::NOW	136	=item $cf::NOW
109		137
110	The time of the last (current) server tick.	138	The time of the last (current) server tick.
111		139
…		…
116	=item %cf::CFG	144	=item %cf::CFG
117		145
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	147	from wherever your confdir points to.
120		148
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	149	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		150
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	152	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.
127		154
128	=back	155	=back
129		156
130	=cut	157	=cut
131		158
132	BEGIN {	159	BEGIN {
133	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	161	my $msg = join "", @_;
135	utf8::encode $msg;
136		162
137	$msg .= "\n"	163	$msg .= "\n"
138	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
139		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
140	LOG llevError, $msg;	169	LOG llevError, $msg;
141	};	170	};
142	}	171	}
143		172
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	220	$d
192	} || "[unable to dump $_[0]: '$@']";	221	} || "[unable to dump $_[0]: '$@']";
193	}	222	}
194		223
195	use JSON::Syck (); # TODO# replace by JSON::PC once working	224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
196		225
197	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
198		227
199	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
200		229
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
209		231
210	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
211
212	=cut
213
214	sub to_json($) {
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
216	JSON::Syck::Dump $_[0]
217	}
218		233
219	=item cf::lock_wait $string	234	=item cf::lock_wait $string
220		235
221	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
222		237
…		…
228	returned.	243	returned.
229		244
230	Lock names should begin with a unique identifier (for example, cf::map::find	245	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	246	uses map_find and cf::map::load uses map_load).
232		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
		251
233	=cut	252	=cut
234		253
235	our %LOCK;	254	our %LOCK;
236		255
237	sub lock_wait($) {	256	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
258	}	277	}
259	}	278	}
260		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
261	sub freeze_mainloop {	286	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	287	return unless $TICK_WATCHER->is_active;
263		288
264	my $guard = Coro::guard {	289	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	290	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	291	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	292	$TICK_WATCHER->stop;
270	$guard	293	$guard
271	}	294	}
272		295
273	=item cf::async { BLOCK }	296	=item cf::async { BLOCK }
…		…
344		367
345	$coro	368	$coro
346	}	369	}
347		370
348	sub write_runtime {	371	sub write_runtime {
349	my $runtime = cf::localdir . "/runtime";	372	my $guard = cf::lock_acquire "write_runtime";
		373
		374	my $runtime = "$LOCALDIR/runtime";
350		375
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352	or return;	377	or return;
353		378
354	my $value = $cf::RUNTIME + 90 + 10;	379	my $value = $cf::RUNTIME + 90 + 10;
…		…
356	# 60 allows for the watchdog to kill the server.	381	# 60 allows for the watchdog to kill the server.
357		382
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
359	and return;	384	and return;
360		385
		386	# always fsync - this file is important
361	aio_fsync $fh	387	aio_fsync $fh
362	and return;	388	and return;
363		389
364	close $fh	390	close $fh
365	or return;	391	or return;
366		392
367	aio_rename "$runtime~", $runtime	393	aio_rename "$runtime~", $runtime
368	and return;	394	and return;
369		395
370	1	396	1
		397	}
		398
		399	=item cf::datalog type => key => value, ...
		400
		401	Log a datalog packet of the given type with the given key-value pairs.
		402
		403	=cut
		404
		405	sub datalog($@) {
		406	my ($type, %kv) = @_;
		407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	408	}
372		409
373	=back	410	=back
374		411
375	=cut	412	=cut
…		…
750	$filename, length $$rdata, scalar @$objs;	787	$filename, length $$rdata, scalar @$objs;
751		788
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	790	chmod SAVE_MODE, $fh;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755	aio_fsync $fh;	792	aio_fsync $fh if $cf::USE_FSYNC;
756	close $fh;	793	close $fh;
757		794
758	if (@$objs) {	795	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	797	chmod SAVE_MODE, $fh;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	798	my $data = Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	799	aio_write $fh, 0, (length $data), $data, 0;
763	aio_fsync $fh;	800	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	801	close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	802	aio_rename "$filename.pst~", "$filename.pst";
766	}	803	}
767	} else {	804	} else {
768	aio_unlink "$filename.pst";	805	aio_unlink "$filename.pst";
…		…
937	Returns the given player object, loading it if necessary (might block).	974	Returns the given player object, loading it if necessary (might block).
938		975
939	=cut	976	=cut
940		977
941	sub playerdir($) {	978	sub playerdir($) {
942	cf::localdir	979	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	980	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	981	}
948		982
949	sub path($) {	983	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	984	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		985
952	(playerdir $login) . "/$login.pl"	986	(playerdir $login) . "/playerdata"
953	}	987	}
954		988
955	sub find_active($) {	989	sub find_active($) {
956	$cf::PLAYER{$_[0]}	990	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	991	and $cf::PLAYER{$_[0]}->active
…		…
970	my $login = $_[0];	1004	my $login = $_[0];
971		1005
972	my $guard = cf::lock_acquire "user_find:$login";	1006	my $guard = cf::lock_acquire "user_find:$login";
973		1007
974	$cf::PLAYER{$_[0]} || do {	1008	$cf::PLAYER{$_[0]} || do {
		1009	# rename old playerfiles to new ones
		1010	#TODO: remove when no longer required
		1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1014	aio_unlink +(playerdir $login) . "/$login.pl";
		1015
975	my $pl = load_pl path $login	1016	my $pl = load_pl path $login
976	or return;	1017	or return;
977	$cf::PLAYER{$login} = $pl	1018	$cf::PLAYER{$login} = $pl
978	}	1019	}
979	}	1020	}
…		…
1016		1057
1017	=cut	1058	=cut
1018		1059
1019	sub quit_character {	1060	sub quit_character {
1020	my ($pl) = @_;	1061	my ($pl) = @_;
		1062
		1063	my $name = $pl->ob->name;
1021		1064
1022	$pl->{deny_save} = 1;	1065	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1066	$pl->password ("*"); # this should lock out the player until we nuked the dir
1024		1067
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1030	my $path = playerdir $pl;	1073	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1074	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1075	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1076	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1077	$pl->destroy;
		1078
		1079	my $prefix = qr<^~\Q$name\E/>;
		1080
		1081	# nuke player maps
		1082	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1083
1035	IO::AIO::aio_rmtree $temp;	1084	IO::AIO::aio_rmtree $temp;
		1085	}
		1086
		1087	=item $pl->kick
		1088
		1089	Kicks a player out of the game. This destroys the connection.
		1090
		1091	=cut
		1092
		1093	sub kick {
		1094	my ($pl, $kicker) = @_;
		1095
		1096	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1097	$pl->killer ("kicked");
		1098	$pl->ns->destroy;
1036	}	1099	}
1037		1100
1038	=item cf::player::list_logins	1101	=item cf::player::list_logins
1039		1102
1040	Returns am arrayref of all valid playernames in the system, can take a	1103	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1104	while and may block, so not sync_job-capable, ever.
1042		1105
1043	=cut	1106	=cut
1044		1107
1045	sub list_logins {	1108	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1109	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1110	or return [];
1048		1111
1049	my @logins;	1112	my @logins;
1050		1113
1051	for my $login (@$dirs) {	1114	for my $login (@$dirs) {
…		…
1068	=cut	1131	=cut
1069		1132
1070	sub maps($) {	1133	sub maps($) {
1071	my ($pl) = @_;	1134	my ($pl) = @_;
1072		1135
		1136	$pl = ref $pl ? $pl->ob->name : $pl;
		1137
1073	my $files = aio_readdir playerdir $pl	1138	my $files = aio_readdir playerdir $pl
1074	or return;	1139	or return;
1075		1140
1076	my @paths;	1141	my @paths;
1077		1142
1078	for (@$files) {	1143	for (@$files) {
1079	utf8::decode $_;	1144	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1145	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1146	next unless /^$PATH_SEP/o;
1082		1147
1083	s/\.map$//;	1148	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1149	}
1086		1150
1087	\@paths	1151	\@paths
1088	}	1152	}
1089		1153
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1154	=item $player->ext_reply ($msgid, %msg)
1091		1155
1092	Sends an ext reply to the player.	1156	Sends an ext reply to the player.
1093		1157
1094	=cut	1158	=cut
1095		1159
1096	sub ext_reply($$$%) {	1160	sub ext_reply($$%) {
1097	my ($self, $id, %msg) = @_;	1161	my ($self, $id, %msg) = @_;
1098		1162
1099	$msg{msgid} = $id;	1163	$msg{msgid} = $id;
1100		1164
1101	$self->send ("ext " . cf::to_json \%msg);	1165	$self->send ("ext " . cf::to_json \%msg);
1102	}	1166	}
1103		1167
1104	package cf;	1168	=item $player->ext_event ($type, %msg)
		1169
		1170	Sends an ext event to the client.
		1171
		1172	=cut
		1173
		1174	sub ext_event($$%) {
		1175	my ($self, $type, %msg) = @_;
		1176
		1177	$self->ns->ext_event ($type, %msg);
		1178	}
		1179
		1180	=head3 cf::region
		1181
		1182	=over 4
		1183
		1184	=cut
		1185
		1186	package cf::region;
		1187
		1188	=item cf::region::find_by_path $path
		1189
		1190	Tries to decuce the probable region for a map knowing only its path.
		1191
		1192	=cut
		1193
		1194	sub find_by_path($) {
		1195	my ($path) = @_;
		1196
		1197	my ($match, $specificity);
		1198
		1199	for my $region (list) {
		1200	if ($region->match && $path =~ $region->match) {
		1201	($match, $specificity) = ($region, $region->specificity)
		1202	if $region->specificity > $specificity;
		1203	}
		1204	}
		1205
		1206	$match
		1207	}
1105		1208
1106	=back	1209	=back
1107
1108		1210
1109	=head3 cf::map	1211	=head3 cf::map
1110		1212
1111	=over 4	1213	=over 4
1112		1214
…		…
1176	}	1278	}
1177		1279
1178	sub normalise {	1280	sub normalise {
1179	my ($path, $base) = @_;	1281	my ($path, $base) = @_;
1180		1282
		1283	$path = "$path"; # make sure its a string
		1284
		1285	$path =~ s/\.map$//;
		1286
1181	# map plan:	1287	# map plan:
1182	#	1288	#
1183	# /! non-realised random map exit (special hack!)	1289	# /! non-realised random map exit (special hack!)
1184	# {... are special paths that are not being touched	1290	# {... are special paths that are not being touched
1185	# ?xxx/... are special absolute paths	1291	# ?xxx/... are special absolute paths
…		…
1221	$self->init; # pass $1 etc.	1327	$self->init; # pass $1 etc.
1222	return $self;	1328	return $self;
1223	}	1329	}
1224	}	1330	}
1225		1331
1226	Carp::carp "unable to resolve path '$path'.";	1332	Carp::carp "unable to resolve path '$path' (base '$base').";
1227	()	1333	()
1228	}	1334	}
1229		1335
1230	sub init {	1336	sub init {
1231	my ($self) = @_;	1337	my ($self) = @_;
…		…
1246		1352
1247	# the original (read-only) location	1353	# the original (read-only) location
1248	sub load_path {	1354	sub load_path {
1249	my ($self) = @_;	1355	my ($self) = @_;
1250		1356
1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1357	"$MAPDIR/$self->{path}.map"
1252	}	1358	}
1253		1359
1254	# the temporary/swap location	1360	# the temporary/swap location
1255	sub save_path {	1361	sub save_path {
1256	my ($self) = @_;	1362	my ($self) = @_;
1257		1363
1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1365	"$TMPDIR/$path.map"
1260	}	1366	}
1261		1367
1262	# the unique path, undef == no special unique path	1368	# the unique path, undef == no special unique path
1263	sub uniq_path {	1369	sub uniq_path {
1264	my ($self) = @_;	1370	my ($self) = @_;
1265		1371
1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1373	"$UNIQUEDIR/$path"
1268	}	1374	}
1269		1375
1270	# and all this just because we cannot iterate over	1376	# and all this just because we cannot iterate over
1271	# all maps in C++...	1377	# all maps in C++...
1272	sub change_all_map_light {	1378	sub change_all_map_light {
…		…
1286		1392
1287	sub load_header_from($) {	1393	sub load_header_from($) {
1288	my ($self, $path) = @_;	1394	my ($self, $path) = @_;
1289		1395
1290	utf8::encode $path;	1396	utf8::encode $path;
1291	aio_open $path, O_RDONLY, 0	1397	#aio_open $path, O_RDONLY, 0
1292	or return;	1398	# or return;
1293		1399
1294	$self->_load_header ($path)	1400	$self->_load_header ($path)
1295	or return;	1401	or return;
1296		1402
1297	$self->{load_path} = $path;	1403	$self->{load_path} = $path;
…		…
1339	$self->load_header_orig	1445	$self->load_header_orig
1340	or return;	1446	or return;
1341	$self->prepare_orig;	1447	$self->prepare_orig;
1342	}	1448	}
1343		1449
		1450	$self->default_region (cf::region::find_by_path $self->{path})
		1451	unless $self->default_region;
		1452
1344	1	1453	1
1345	}	1454	}
1346		1455
1347	sub find;	1456	sub find;
1348	sub find {	1457	sub find {
…		…
1360	$map->{last_save} = $cf::RUNTIME;	1469	$map->{last_save} = $cf::RUNTIME;
1361		1470
1362	$map->load_header	1471	$map->load_header
1363	or return;	1472	or return;
1364		1473
1365	if ($map->should_reset) {	1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1366	# doing this can freeze the server in a sync job, obviously	1475	# doing this can freeze the server in a sync job, obviously
1367	#$cf::WAIT_FOR_TICK->wait;	1476	#$cf::WAIT_FOR_TICK->wait;
1368	$map->reset;	1477	$map->reset;
1369	undef $guard;	1478	undef $guard;
1370	$map = find $path	1479	return find $path;
1371	or return;
1372	}	1480	}
1373		1481
1374	$cf::MAP{$path} = $map	1482	$cf::MAP{$path} = $map
1375	}	1483	}
1376	}	1484	}
…		…
1379	sub post_load { }	1487	sub post_load { }
1380		1488
1381	sub load {	1489	sub load {
1382	my ($self) = @_;	1490	my ($self) = @_;
1383		1491
		1492	local $self->{deny_reset} = 1; # loading can take a long time
		1493
1384	my $path = $self->{path};	1494	my $path = $self->{path};
1385	my $guard = cf::lock_acquire "map_load:$path";	1495	my $guard = cf::lock_acquire "map_load:$path";
1386		1496
1387	return if $self->in_memory != cf::MAP_SWAPPED;	1497	return if $self->in_memory != cf::MAP_SWAPPED;
1388		1498
1389	$self->in_memory (cf::MAP_LOADING);	1499	$self->in_memory (cf::MAP_LOADING);
1390		1500
1391	$self->alloc;	1501	$self->alloc;
1392		1502
1393	$self->pre_load;	1503	$self->pre_load;
		1504	Coro::cede;
1394		1505
1395	$self->_load_objects ($self->{load_path}, 1)	1506	$self->_load_objects ($self->{load_path}, 1)
1396	or return;	1507	or return;
1397		1508
1398	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1509	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
…		…
1405	$self->_load_objects ($uniq, 0);	1516	$self->_load_objects ($uniq, 0);
1406	}	1517	}
1407	}	1518	}
1408		1519
1409	Coro::cede;	1520	Coro::cede;
1410
1411	# now do the right thing for maps	1521	# now do the right thing for maps
1412	$self->link_multipart_objects;	1522	$self->link_multipart_objects;
		1523	Coro::cede;
1413		1524
1414	unless ($self->{deny_activate}) {	1525	unless ($self->{deny_activate}) {
1415	$self->decay_objects;	1526	$self->decay_objects;
1416	$self->fix_auto_apply;	1527	$self->fix_auto_apply;
1417	$self->update_buttons;	1528	$self->update_buttons;
…		…
1419	$self->set_darkness_map;	1530	$self->set_darkness_map;
1420	$self->difficulty ($self->estimate_difficulty)	1531	$self->difficulty ($self->estimate_difficulty)
1421	unless $self->difficulty;	1532	unless $self->difficulty;
1422	Coro::cede;	1533	Coro::cede;
1423	$self->activate;	1534	$self->activate;
		1535	Coro::cede;
1424	}	1536	}
1425		1537
1426	$self->post_load;	1538	$self->post_load;
		1539	Coro::cede;
1427		1540
1428	$self->in_memory (cf::MAP_IN_MEMORY);	1541	$self->in_memory (cf::MAP_IN_MEMORY);
1429	}	1542	}
1430		1543
1431	sub customise_for {	1544	sub customise_for {
…		…
1576	return if $self->players;	1689	return if $self->players;
1577	return if $self->isa ("ext::map_per_player");#d#	1690	return if $self->isa ("ext::map_per_player");#d#
1578		1691
1579	warn "resetting map ", $self->path;#d#	1692	warn "resetting map ", $self->path;#d#
1580		1693
		1694	$self->in_memory (cf::MAP_SWAPPED);
		1695
		1696	# need to save uniques path
		1697	unless ($self->{deny_save}) {
		1698	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1699
		1700	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1701	if $uniq;
		1702	}
		1703
1581	delete $cf::MAP{$self->path};	1704	delete $cf::MAP{$self->path};
1582		1705
1583	$self->in_memory (cf::MAP_SWAPPED);
1584	$self->clear;	1706	$self->clear;
1585		1707
1586	$_->clear_links_to ($self) for values %cf::MAP;	1708	$_->clear_links_to ($self) for values %cf::MAP;
1587		1709
1588	$self->unlink_save;	1710	$self->unlink_save;
…		…
1615	instantiated unique items. May block.	1737	instantiated unique items. May block.
1616		1738
1617	=cut	1739	=cut
1618		1740
1619	sub unique_maps() {	1741	sub unique_maps() {
1620	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1742	my $files = aio_readdir $UNIQUEDIR
1621	or return;	1743	or return;
1622		1744
1623	my @paths;	1745	my @paths;
1624		1746
1625	for (@$files) {	1747	for (@$files) {
1626	utf8::decode $_;	1748	utf8::decode $_;
1627	next if /\.pst$/;	1749	next if /\.pst$/;
1628	next unless /^$PATH_SEP/o;	1750	next unless /^$PATH_SEP/o;
1629		1751
1630	s/\.map$//;	1752	push @paths, cf::map::normalise $_;
1631	push @paths, $_;
1632	}	1753	}
1633		1754
1634	\@paths	1755	\@paths
1635	}	1756	}
1636		1757
…		…
1730	=cut	1851	=cut
1731		1852
1732	sub link_map {	1853	sub link_map {
1733	unless ($LINK_MAP) {	1854	unless ($LINK_MAP) {
1734	$LINK_MAP = cf::map::find "{link}"	1855	$LINK_MAP = cf::map::find "{link}"
1735	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	1856	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1736	$LINK_MAP->load;	1857	$LINK_MAP->load;
1737	}	1858	}
1738		1859
1739	$LINK_MAP	1860	$LINK_MAP
1740	}	1861	}
…		…
1747	return if UNIVERSAL::isa $self->map, "ext::map_link";	1868	return if UNIVERSAL::isa $self->map, "ext::map_link";
1748		1869
1749	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1870	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1750	if $self->map;	1871	if $self->map;
1751		1872
1752	$self->enter_map ($LINK_MAP || link_map, 20, 20);	1873	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1753	}	1874	}
1754		1875
1755	sub cf::object::player::leave_link {	1876	sub cf::object::player::leave_link {
1756	my ($self, $map, $x, $y) = @_;	1877	my ($self, $map, $x, $y) = @_;
1757		1878
…		…
1779	$map->load;	1900	$map->load;
1780	$map->load_diag;	1901	$map->load_diag;
1781		1902
1782	return unless $self->contr->active;	1903	return unless $self->contr->active;
1783	$self->activate_recursive;	1904	$self->activate_recursive;
		1905
		1906	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1784	$self->enter_map ($map, $x, $y);	1907	$self->enter_map ($map, $x, $y);
1785	}	1908	}
1786		1909
1787	cf::player->attach (	1910	cf::player->attach (
1788	on_logout => sub {	1911	on_logout => sub {
…		…
1801	# try to abort aborted map switching on player login :)	1924	# try to abort aborted map switching on player login :)
1802	# should happen only on crashes	1925	# should happen only on crashes
1803	if ($pl->ob->{_link_pos}) {	1926	if ($pl->ob->{_link_pos}) {
1804	$pl->ob->enter_link;	1927	$pl->ob->enter_link;
1805	(async {	1928	(async {
1806	# we need this sleep as the login has a concurrent enter_exit running
1807	# and this sleep increases chances of the player not ending up in scorn
1808	$pl->ob->reply (undef,	1929	$pl->ob->reply (undef,
1809	"There was an internal problem at your last logout, "	1930	"There was an internal problem at your last logout, "
1810	. "the server will try to bring you to your intended destination in a second.",	1931	. "the server will try to bring you to your intended destination in a second.",
1811	cf::NDI_RED);	1932	cf::NDI_RED);
		1933	# we need this sleep as the login has a concurrent enter_exit running
		1934	# and this sleep increases chances of the player not ending up in scorn
1812	Coro::Timer::sleep 1;	1935	Coro::Timer::sleep 1;
1813	$pl->ob->leave_link;	1936	$pl->ob->leave_link;
1814	})->prio (2);	1937	})->prio (2);
1815	}	1938	}
1816	},	1939	},
…		…
1824	my ($self, $path, $x, $y) = @_;	1947	my ($self, $path, $x, $y) = @_;
1825		1948
1826	$self->enter_link;	1949	$self->enter_link;
1827		1950
1828	(async {	1951	(async {
		1952	my $map = eval {
1829	my $map = cf::map::find $path;	1953	my $map = cf::map::find $path;
1830	$map = $map->customise_for ($self) if $map;	1954	$map = $map->customise_for ($self) if $map;
1831		1955	$map
1832	# warn "entering ", $map->path, " at ($x, $y)\n"	1956	} or
1833	# if $map;
1834
1835	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1957	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1836		1958
1837	$self->leave_link ($map, $x, $y);	1959	$self->leave_link ($map, $x, $y);
1838	})->prio (1);	1960	})->prio (1);
1839	}	1961	}
1840		1962
…		…
1871	# that depends on the exit object	1993	# that depends on the exit object
1872		1994
1873	my $rmp = parse_random_map_params $exit->msg;	1995	my $rmp = parse_random_map_params $exit->msg;
1874		1996
1875	if ($exit->map) {	1997	if ($exit->map) {
1876	$rmp->{region} = $exit->map->region_name;	1998	$rmp->{region} = $exit->region->name;
1877	$rmp->{origin_map} = $exit->map->path;	1999	$rmp->{origin_map} = $exit->map->path;
1878	$rmp->{origin_x} = $exit->x;	2000	$rmp->{origin_x} = $exit->x;
1879	$rmp->{origin_y} = $exit->y;	2001	$rmp->{origin_y} = $exit->y;
1880	}	2002	}
1881		2003
1882	$rmp->{random_seed} ||= $exit->random_seed;	2004	$rmp->{random_seed} ||= $exit->random_seed;
1883		2005
1884	my $data = cf::to_json $rmp;	2006	my $data = cf::to_json $rmp;
1885	my $md5 = Digest::MD5::md5_hex $data;	2007	my $md5 = Digest::MD5::md5_hex $data;
1886	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2008	my $meta = "$RANDOMDIR/$md5.meta";
1887		2009
1888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2010	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1889	aio_write $fh, 0, (length $data), $data, 0;	2011	aio_write $fh, 0, (length $data), $data, 0;
1890	undef $fh;	2012	undef $fh;
1891	aio_rename "$meta~", $meta;	2013	aio_rename "$meta~", $meta;
…		…
1898	sub cf::object::player::enter_exit {	2020	sub cf::object::player::enter_exit {
1899	my ($self, $exit) = @_;	2021	my ($self, $exit) = @_;
1900		2022
1901	return unless $self->type == cf::PLAYER;	2023	return unless $self->type == cf::PLAYER;
1902		2024
		2025	if ($exit->slaying eq "/!") {
		2026	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2027	# the problem is that $exit might not survive long enough
		2028	# so it needs to be done right now, right here
		2029	cf::sync_job { prepare_random_map $exit };
		2030	}
		2031
		2032	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2033	my $hp = $exit->stats->hp;
		2034	my $sp = $exit->stats->sp;
		2035
1903	$self->enter_link;	2036	$self->enter_link;
1904		2037
1905	(async {	2038	(async {
1906	$self->deactivate_recursive; # just to be sure	2039	$self->deactivate_recursive; # just to be sure
1907	unless (eval {	2040	unless (eval {
1908	prepare_random_map $exit	2041	$self->goto ($slaying, $hp, $sp);
1909	if $exit->slaying eq "/!";
1910
1911	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1912	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1913		2042
1914	1;	2043	1;
1915	}) {	2044	}) {
1916	$self->message ("Something went wrong deep within the crossfire server. "	2045	$self->message ("Something went wrong deep within the crossfire server. "
1917	. "I'll try to bring you back to the map you were before. "	2046	. "I'll try to bring you back to the map you were before. "
1918	. "Please report this to the dungeon master!",	2047	. "Please report this to the dungeon master!",
1919	cf::NDI_UNIQUE | cf::NDI_RED);	2048	cf::NDI_UNIQUE | cf::NDI_RED);
1920		2049
1921	warn "ERROR in enter_exit: $@";	2050	warn "ERROR in enter_exit: $@";
1922	$self->leave_link;	2051	$self->leave_link;
1923	}	2052	}
1924	})->prio (1);	2053	})->prio (1);
…		…
1937		2066
1938	sub cf::client::send_drawinfo {	2067	sub cf::client::send_drawinfo {
1939	my ($self, $text, $flags) = @_;	2068	my ($self, $text, $flags) = @_;
1940		2069
1941	utf8::encode $text;	2070	utf8::encode $text;
1942	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2071	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1943	}	2072	}
1944		2073
		2074	=item $client->ext_event ($type, %msg)
		2075
		2076	Sends an exti event to the client.
		2077
		2078	=cut
		2079
		2080	sub cf::client::ext_event($$%) {
		2081	my ($self, $type, %msg) = @_;
		2082
		2083	$msg{msgtype} = "event_$type";
		2084	$self->send_packet ("ext " . cf::to_json \%msg);
		2085	}
1945		2086
1946	=item $success = $client->query ($flags, "text", \&cb)	2087	=item $success = $client->query ($flags, "text", \&cb)
1947		2088
1948	Queues a query to the client, calling the given callback with	2089	Queues a query to the client, calling the given callback with
1949	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2090	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1978	# get handled first	2119	# get handled first
1979	my $queue = delete $ns->{query_queue}	2120	my $queue = delete $ns->{query_queue}
1980	or return; # be conservative, not sure how that can happen, but we saw a crash here	2121	or return; # be conservative, not sure how that can happen, but we saw a crash here
1981		2122
1982	(shift @$queue)->[1]->($msg);	2123	(shift @$queue)->[1]->($msg);
		2124	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1983		2125
1984	push @{ $ns->{query_queue} }, @$queue;	2126	push @{ $ns->{query_queue} }, @$queue;
1985		2127
1986	if (@{ $ns->{query_queue} } == @$queue) {	2128	if (@{ $ns->{query_queue} } == @$queue) {
1987	if (@$queue) {	2129	if (@$queue) {
…		…
2045		2187
2046	# here we export the classes and methods available to script code	2188	# here we export the classes and methods available to script code
2047		2189
2048	=pod	2190	=pod
2049		2191
2050	The following fucntions and emthods are available within a safe environment:	2192	The following functions and methods are available within a safe environment:
2051		2193
2052	cf::object contr pay_amount pay_player map	2194	cf::object contr pay_amount pay_player map
2053	cf::object::player player	2195	cf::object::player player
2054	cf::player peaceful	2196	cf::player peaceful
2055	cf::map trigger	2197	cf::map trigger
…		…
2140	#############################################################################	2282	#############################################################################
2141		2283
2142	=head2 EXTENSION DATABASE SUPPORT	2284	=head2 EXTENSION DATABASE SUPPORT
2143		2285
2144	Crossfire maintains a very simple database for extension use. It can	2286	Crossfire maintains a very simple database for extension use. It can
2145	currently store anything that can be serialised using Storable, which	2287	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2146	excludes objects.	2288	convert to/from binary).
2147		2289
2148	The parameter C<$family> should best start with the name of the extension	2290	The parameter C<$family> should best start with the name of the extension
2149	using it, it should be unique.	2291	using it, it should be unique.
2150		2292
2151	=over 4	2293	=over 4
2152		2294
2153	=item $hashref = cf::db_get $family
2154
2155	Return a hashref for use by the extension C<$family>, which can be
2156	modified. After modifications, you have to call C<cf::db_dirty> or
2157	C<cf::db_sync>.
2158
2159	=item $value = cf::db_get $family => $key	2295	=item $value = cf::db_get $family => $key
2160		2296
2161	Returns a single value from the database	2297	Returns a single value from the database.
2162
2163	=item cf::db_put $family => $hashref
2164
2165	Stores the given family hashref into the database. Updates are delayed, if
2166	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2167		2298
2168	=item cf::db_put $family => $key => $value	2299	=item cf::db_put $family => $key => $value
2169		2300
2170	Stores the given C<$value> in the family hash. Updates are delayed, if you	2301	Stores the given C<$value> in the family.
2171	want the data to be synced to disk immediately, use C<cf::db_sync>.
2172
2173	=item cf::db_dirty
2174
2175	Marks the database as dirty, to be updated at a later time.
2176
2177	=item cf::db_sync
2178
2179	Immediately write the database to disk I<if it is dirty>.
2180		2302
2181	=cut	2303	=cut
2182		2304
2183	our $DB;	2305	our $DB;
2184		2306
2185	{	2307	sub db_init {
2186	my $path = cf::localdir . "/database.pst";	2308	unless ($DB) {
		2309	$DB = BDB::db_create $DB_ENV;
2187		2310
2188	sub db_load() {	2311	cf::sync_job {
2189	$DB = stat $path ? Storable::retrieve $path : { };	2312	eval {
2190	}	2313	$DB->set_flags (BDB::CHKSUM);
2191		2314
2192	my $pid;	2315	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2193		2316	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2194	sub db_save() {	2317	cf::cleanup "db_open(db): $!" if $!;
2195	waitpid $pid, 0 if $pid;	2318	};
2196	if (0 == ($pid = fork)) {	2319	cf::cleanup "db_open(db): $@" if $@;
2197	$DB->{_meta}{version} = 1;
2198	Storable::nstore $DB, "$path~";
2199	rename "$path~", $path;
2200	cf::_exit 0 if defined $pid;
2201	}	2320	};
2202	}	2321	}
		2322	}
2203		2323
2204	my $dirty;
2205
2206	sub db_sync() {
2207	db_save if $dirty;
2208	undef $dirty;
2209	}
2210
2211	my $idle = Event->idle (
2212	reentrant => 0,
2213	min => 10,
2214	max => 20,
2215	repeat => 0,
2216	data => WF_AUTOCANCEL,
2217	cb => \&db_sync,
2218	);
2219
2220	sub db_dirty() {
2221	$dirty = 1;
2222	$idle->start;
2223	}
2224
2225	sub db_get($;$) {	2324	sub db_get($$) {
2226	@_ >= 2	2325	my $key = "$_[0]/$_[1]";
2227	? $DB->{$_[0]}{$_[1]}
2228	: ($DB->{$_[0]} ||= { })
2229	}
2230		2326
		2327	cf::sync_job {
		2328	BDB::db_get $DB, undef, $key, my $data;
		2329
		2330	$! ? ()
		2331	: $data
		2332	}
		2333	}
		2334
2231	sub db_put($$;$) {	2335	sub db_put($$$) {
2232	if (@_ >= 3) {	2336	BDB::dbreq_pri 4;
2233	$DB->{$_[0]}{$_[1]} = $_[2];	2337	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2234	} else {	2338	}
2235	$DB->{$_[0]} = $_[1];
2236	}
2237	db_dirty;
2238	}
2239		2339
2240	cf::global->attach (	2340	=item cf::cache $id => [$paths...], $processversion => $process
2241	prio => 10000,	2341
2242	on_cleanup => sub {	2342	Generic caching function that returns the value of the resource $id,
2243	db_sync;	2343	caching and regenerating as required.
		2344
		2345	This function can block.
		2346
		2347	=cut
		2348
		2349	sub cache {
		2350	my ($id, $src, $processversion, $process) = @_;
		2351
		2352	my $meta =
		2353	join "\x00",
		2354	$processversion,
		2355	map {
		2356	aio_stat $_
		2357	and Carp::croak "$_: $!";
		2358
		2359	($_, (stat _)[7,9])
		2360	} @$src;
		2361
		2362	my $dbmeta = db_get cache => "$id/meta";
		2363	if ($dbmeta ne $meta) {
		2364	# changed, we may need to process
		2365
		2366	my @data;
		2367	my $md5;
		2368
		2369	for (0 .. $#$src) {
		2370	0 <= aio_load $src->[$_], $data[$_]
		2371	or Carp::croak "$src->[$_]: $!";
2244	},	2372	}
2245	);	2373
		2374	# if processing is expensive, check
		2375	# checksum first
		2376	if (1) {
		2377	$md5 =
		2378	join "\x00",
		2379	$processversion,
		2380	map {
		2381	Coro::cede;
		2382	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2383	} 0.. $#$src;
		2384
		2385
		2386	my $dbmd5 = db_get cache => "$id/md5";
		2387	if ($dbmd5 eq $md5) {
		2388	db_put cache => "$id/meta", $meta;
		2389
		2390	return db_get cache => "$id/data";
		2391	}
		2392	}
		2393
		2394	my $t1 = Time::HiRes::time;
		2395	my $data = $process->(\@data);
		2396	my $t2 = Time::HiRes::time;
		2397
		2398	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2399
		2400	db_put cache => "$id/data", $data;
		2401	db_put cache => "$id/md5" , $md5;
		2402	db_put cache => "$id/meta", $meta;
		2403
		2404	return $data;
		2405	}
		2406
		2407	db_get cache => "$id/data"
2246	}	2408	}
		2409
		2410	=item fork_call { }, $args
		2411
		2412	Executes the given code block with the given arguments in a seperate
		2413	process, returning the results. Everything must be serialisable with
		2414	Coro::Storable. May, of course, block. Note that the executed sub may
		2415	never block itself or use any form of Event handling.
		2416
		2417	=cut
		2418
		2419	sub fork_call(&@) {
		2420	my ($cb, @args) = @_;
		2421
		2422	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2423	# or die "socketpair: $!";
		2424	pipe my $fh1, my $fh2
		2425	or die "pipe: $!";
		2426
		2427	if (my $pid = fork) {
		2428	close $fh2;
		2429
		2430	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2431	$res = Coro::Storable::thaw $res;
		2432
		2433	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2434
		2435	die $$res unless "ARRAY" eq ref $res;
		2436
		2437	return wantarray ? @$res : $res->[-1];
		2438	} else {
		2439	local $SIG{__WARN__};
		2440	eval {
		2441	local $SIG{__DIE__};
		2442	close $fh1;
		2443
		2444	my @res = eval { $cb->(@args) };
		2445	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2446	};
		2447
		2448	warn $@ if $@;
		2449	_exit 0;
		2450	}
		2451	}
		2452
		2453
2247		2454
2248	#############################################################################	2455	#############################################################################
2249	# the server's main()	2456	# the server's init and main functions
		2457
		2458	sub load_facedata($) {
		2459	my ($path) = @_;
		2460
		2461	warn "loading facedata from $path\n";
		2462
		2463	my $facedata;
		2464	0 < aio_load $path, $facedata
		2465	or die "$path: $!";
		2466
		2467	$facedata = Coro::Storable::thaw $facedata;
		2468
		2469	$facedata->{version} == 2
		2470	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2471
		2472	{
		2473	my $faces = $facedata->{faceinfo};
		2474
		2475	while (my ($face, $info) = each %$faces) {
		2476	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2477	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2478	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2479	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2480	Coro::cede;
		2481	}
		2482
		2483	while (my ($face, $info) = each %$faces) {
		2484	next unless $info->{smooth};
		2485	my $idx = cf::face::find $face
		2486	or next;
		2487	if (my $smooth = cf::face::find $info->{smooth}) {
		2488	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2489	} else {
		2490	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2491	}
		2492	Coro::cede;
		2493	}
		2494	}
		2495
		2496	{
		2497	my $anims = $facedata->{animinfo};
		2498
		2499	while (my ($anim, $info) = each %$anims) {
		2500	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2501	Coro::cede;
		2502	}
		2503
		2504	cf::anim::invalidate_all; # d'oh
		2505	}
		2506
		2507	1
		2508	}
		2509
		2510	sub reload_regions {
		2511	load_resource_file "$MAPDIR/regions"
		2512	or die "unable to load regions file\n";
		2513	}
		2514
		2515	sub reload_facedata {
		2516	load_facedata "$DATADIR/facedata"
		2517	or die "unable to load facedata\n";
		2518	}
		2519
		2520	sub reload_archetypes {
		2521	load_resource_file "$DATADIR/archetypes"
		2522	or die "unable to load archetypes\n";
		2523	}
		2524
		2525	sub reload_treasures {
		2526	load_resource_file "$DATADIR/treasures"
		2527	or die "unable to load treasurelists\n";
		2528	}
		2529
		2530	sub reload_resources {
		2531	warn "reloading resource files...\n";
		2532
		2533	reload_regions;
		2534	reload_facedata;
		2535	reload_archetypes;
		2536	reload_treasures;
		2537
		2538	warn "finished reloading resource files\n";
		2539	}
		2540
		2541	sub init {
		2542	reload_resources;
		2543	}
2250		2544
2251	sub cfg_load {	2545	sub cfg_load {
2252	open my $fh, "<:utf8", cf::confdir . "/config"	2546	open my $fh, "<:utf8", "$CONFDIR/config"
2253	or return;	2547	or return;
2254		2548
2255	local $/;	2549	local $/;
2256	*CFG = YAML::Syck::Load <$fh>;	2550	*CFG = YAML::Syck::Load <$fh>;
2257		2551
…		…
2277	Event::one_event;	2571	Event::one_event;
2278	})->prio (Coro::PRIO_MAX);	2572	})->prio (Coro::PRIO_MAX);
2279	};	2573	};
2280		2574
2281	cfg_load;	2575	cfg_load;
2282	db_load;	2576	db_init;
2283	load_extensions;	2577	load_extensions;
2284		2578
2285	$TICK_WATCHER->start;	2579	$TICK_WATCHER->start;
2286	Event::loop;	2580	Event::loop;
2287	}	2581	}
…		…
2326	my $map = $cf::MAP{$path} or next;	2620	my $map = $cf::MAP{$path} or next;
2327	$map->valid or next;	2621	$map->valid or next;
2328	$map->save;	2622	$map->save;
2329	}	2623	}
2330	warn "end emergency map save\n";	2624	warn "end emergency map save\n";
		2625
		2626	warn "begin emergency database checkpoint\n";
		2627	BDB::db_env_txn_checkpoint $DB_ENV;
		2628	warn "end emergency database checkpoint\n";
2331	};	2629	};
2332		2630
2333	warn "leave emergency perl save\n";	2631	warn "leave emergency perl save\n";
2334	}	2632	}
2335		2633
		2634	sub post_cleanup {
		2635	my ($make_core) = @_;
		2636
		2637	warn Carp::longmess "post_cleanup backtrace"
		2638	if $make_core;
		2639	}
		2640
2336	sub reload() {	2641	sub do_reload_perl() {
2337	# can/must only be called in main	2642	# can/must only be called in main
2338	if ($Coro::current != $Coro::main) {	2643	if ($Coro::current != $Coro::main) {
2339	warn "can only reload from main coroutine";	2644	warn "can only reload from main coroutine";
2340	return;	2645	return;
2341	}	2646	}
2342		2647
2343	warn "reloading...";	2648	warn "reloading...";
2344		2649
2345	warn "cancelling server ticker";	2650	warn "entering sync_job";
2346	$TICK_WATCHER->cancel;
2347		2651
		2652	cf::sync_job {
		2653	cf::write_runtime; # external watchdog should not bark
2348	cf::emergency_save;	2654	cf::emergency_save;
		2655	cf::write_runtime; # external watchdog should not bark
2349		2656
2350	eval {	2657	warn "syncing database to disk";
		2658	BDB::db_env_txn_checkpoint $DB_ENV;
		2659
2351	# if anything goes wrong in here, we should simply crash as we already saved	2660	# if anything goes wrong in here, we should simply crash as we already saved
2352
2353	warn "syncing database to disk";
2354	cf::db_sync;
2355		2661
2356	warn "cancelling all WF_AUTOCANCEL watchers";	2662	warn "cancelling all WF_AUTOCANCEL watchers";
2357	for (Event::all_watchers) {	2663	for (Event::all_watchers) {
2358	$_->cancel if $_->data & WF_AUTOCANCEL;	2664	$_->cancel if $_->data & WF_AUTOCANCEL;
2359	}	2665	}
2360		2666
2361	warn "flushing outstanding aio requests";	2667	warn "flushing outstanding aio requests";
2362	for (;;) {	2668	for (;;) {
		2669	BDB::flush;
2363	IO::AIO::flush;	2670	IO::AIO::flush;
2364	Coro::cede;	2671	Coro::cede;
2365	last unless IO::AIO::nreqs;	2672	last unless IO::AIO::nreqs || BDB::nreqs;
2366	warn "iterate...";	2673	warn "iterate...";
2367	}	2674	}
		2675
		2676	++$RELOAD;
2368		2677
2369	warn "cancelling all extension coros";	2678	warn "cancelling all extension coros";
2370	$_->cancel for values %EXT_CORO;	2679	$_->cancel for values %EXT_CORO;
2371	%EXT_CORO = ();	2680	%EXT_CORO = ();
2372		2681
…		…
2412	Symbol::delete_package "safe::$_"	2721	Symbol::delete_package "safe::$_"
2413	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2722	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2414		2723
2415	warn "unloading cf.pm \"a bit\"";	2724	warn "unloading cf.pm \"a bit\"";
2416	delete $INC{"cf.pm"};	2725	delete $INC{"cf.pm"};
		2726	delete $INC{"cf/pod.pm"};
2417		2727
2418	# don't, removes xs symbols, too,	2728	# don't, removes xs symbols, too,
2419	# and global variables created in xs	2729	# and global variables created in xs
2420	#Symbol::delete_package __PACKAGE__;	2730	#Symbol::delete_package __PACKAGE__;
2421		2731
…		…
2425	require cf;	2735	require cf;
2426	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2736	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2427		2737
2428	warn "loading config and database again";	2738	warn "loading config and database again";
2429	cf::cfg_load;	2739	cf::cfg_load;
2430	cf::db_load;
2431		2740
2432	warn "loading extensions";	2741	warn "loading extensions";
2433	cf::load_extensions;	2742	cf::load_extensions;
2434		2743
2435	warn "reattaching attachments to objects/players";	2744	warn "reattaching attachments to objects/players";
2436	_global_reattach;	2745	_global_reattach; # objects, sockets
2437	warn "reattaching attachments to maps";	2746	warn "reattaching attachments to maps";
2438	reattach $_ for values %MAP;	2747	reattach $_ for values %MAP;
		2748	warn "reattaching attachments to players";
		2749	reattach $_ for values %PLAYER;
2439		2750
2440	warn "restarting server ticker";	2751	warn "leaving sync_job";
2441		2752
2442	$TICK_WATCHER->start;	2753	1
2443	};	2754	} or do {
2444
2445	if ($@) {
2446	warn $@;	2755	warn $@;
2447	warn "error while reloading, exiting.";	2756	warn "error while reloading, exiting.";
2448	exit 1;	2757	exit 1;
2449	}	2758	};
2450		2759
2451	warn "reloaded";	2760	warn "reloaded";
2452	};	2761	};
2453		2762
2454	our $RELOAD_WATCHER; # used only during reload	2763	our $RELOAD_WATCHER; # used only during reload
2455		2764
		2765	sub reload_perl() {
		2766	# doing reload synchronously and two reloads happen back-to-back,
		2767	# coro crashes during coro_state_free->destroy here.
		2768
		2769	$RELOAD_WATCHER ||= Event->timer (
		2770	reentrant => 0,
		2771	after => 0,
		2772	data => WF_AUTOCANCEL,
		2773	cb => sub {
		2774	do_reload_perl;
		2775	undef $RELOAD_WATCHER;
		2776	},
		2777	);
		2778	}
		2779
2456	register_command "reload" => sub {	2780	register_command "reload" => sub {
2457	my ($who, $arg) = @_;	2781	my ($who, $arg) = @_;
2458		2782
2459	if ($who->flag (FLAG_WIZ)) {	2783	if ($who->flag (FLAG_WIZ)) {
2460	$who->message ("reloading server.");	2784	$who->message ("reloading server.");
2461		2785	async { reload_perl };
2462	# doing reload synchronously and two reloads happen back-to-back,
2463	# coro crashes during coro_state_free->destroy here.
2464
2465	$RELOAD_WATCHER ||= Event->timer (
2466	reentrant => 0,
2467	after => 0,
2468	data => WF_AUTOCANCEL,
2469	cb => sub {
2470	reload;
2471	undef $RELOAD_WATCHER;
2472	},
2473	);
2474	}	2786	}
2475	};	2787	};
2476		2788
2477	unshift @INC, $LIBDIR;	2789	unshift @INC, $LIBDIR;
2478		2790
2479	my $bug_warning = 0;	2791	my $bug_warning = 0;
		2792
		2793	our @WAIT_FOR_TICK;
		2794	our @WAIT_FOR_TICK_BEGIN;
		2795
		2796	sub wait_for_tick {
		2797	return unless $TICK_WATCHER->is_active;
		2798	return if $Coro::current == $Coro::main;
		2799
		2800	my $signal = new Coro::Signal;
		2801	push @WAIT_FOR_TICK, $signal;
		2802	$signal->wait;
		2803	}
		2804
		2805	sub wait_for_tick_begin {
		2806	return unless $TICK_WATCHER->is_active;
		2807	return if $Coro::current == $Coro::main;
		2808
		2809	my $signal = new Coro::Signal;
		2810	push @WAIT_FOR_TICK_BEGIN, $signal;
		2811	$signal->wait;
		2812	}
2480		2813
2481	$TICK_WATCHER = Event->timer (	2814	$TICK_WATCHER = Event->timer (
2482	reentrant => 0,	2815	reentrant => 0,
2483	parked => 1,	2816	parked => 1,
2484	prio => 0,	2817	prio => 0,
…		…
2492	}	2825	}
2493		2826
2494	$NOW = Event::time;	2827	$NOW = Event::time;
2495		2828
2496	cf::server_tick; # one server iteration	2829	cf::server_tick; # one server iteration
		2830
2497	$RUNTIME += $TICK;	2831	$RUNTIME += $TICK;
2498	$NEXT_TICK += $TICK;	2832	$NEXT_TICK += $TICK;
2499		2833
2500	$WAIT_FOR_TICK->broadcast;	2834	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2501	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2835	$NEXT_RUNTIME_WRITE = $NOW + 10;
2502		2836	Coro::async_pool {
2503	Event::sweep;	2837	write_runtime
2504	Coro::cede_notself;	2838	or warn "ERROR: unable to write runtime file: $!";
		2839	};
2505		2840	}
		2841
2506	# my $AFTER = Event::time;	2842	# my $AFTER = Event::time;
2507	# warn $AFTER - $NOW;#d#	2843	# warn $AFTER - $NOW;#d#
2508		2844
2509	# if we are delayed by four ticks or more, skip them all	2845	# if we are delayed by four ticks or more, skip them all
2510	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2846	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2511		2847
2512	$TICK_WATCHER->at ($NEXT_TICK);	2848	$TICK_WATCHER->at ($NEXT_TICK);
2513	$TICK_WATCHER->start;	2849	$TICK_WATCHER->start;
		2850
		2851	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2852	$sig->send;
		2853	}
		2854	while (my $sig = shift @WAIT_FOR_TICK) {
		2855	$sig->send;
		2856	}
		2857
		2858	_post_tick;
2514	},	2859	},
2515	);	2860	);
2516		2861
		2862	{
		2863	BDB::max_poll_time $TICK * 0.1;
		2864	$BDB_POLL_WATCHER = Event->io (
		2865	reentrant => 0,
		2866	fd => BDB::poll_fileno,
		2867	poll => 'r',
		2868	prio => 0,
		2869	data => WF_AUTOCANCEL,
		2870	cb => \&BDB::poll_cb,
		2871	);
		2872	BDB::min_parallel 8;
		2873
		2874	BDB::set_sync_prepare {
		2875	my $status;
		2876	my $current = $Coro::current;
		2877	(
		2878	sub {
		2879	$status = $!;
		2880	$current->ready; undef $current;
		2881	},
		2882	sub {
		2883	Coro::schedule while defined $current;
		2884	$! = $status;
		2885	},
		2886	)
		2887	};
		2888
		2889	unless ($DB_ENV) {
		2890	$DB_ENV = BDB::db_env_create;
		2891
		2892	cf::sync_job {
		2893	eval {
		2894	BDB::db_env_open
		2895	$DB_ENV,
		2896	$BDBDIR,
		2897	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2898	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2899	0666;
		2900
		2901	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2902
		2903	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2904	$DB_ENV->set_lk_detect;
		2905	};
		2906
		2907	cf::cleanup "db_env_open(db): $@" if $@;
		2908	};
		2909	}
		2910	}
		2911
		2912	{
		2913	IO::AIO::min_parallel 8;
		2914
		2915	undef $Coro::AIO::WATCHER;
2517	IO::AIO::max_poll_time $TICK * 0.1;	2916	IO::AIO::max_poll_time $TICK * 0.1;
2518
2519	undef $Coro::AIO::WATCHER;
2520	$AIO_POLL_WATCHER = Event->io (	2917	$AIO_POLL_WATCHER = Event->io (
2521	reentrant => 0,	2918	reentrant => 0,
		2919	data => WF_AUTOCANCEL,
2522	fd => IO::AIO::poll_fileno,	2920	fd => IO::AIO::poll_fileno,
2523	poll => 'r',	2921	poll => 'r',
2524	prio => 6,	2922	prio => 6,
2525	data => WF_AUTOCANCEL,
2526	cb => \&IO::AIO::poll_cb,	2923	cb => \&IO::AIO::poll_cb,
2527	);	2924	);
		2925	}
2528		2926
2529	$WRITE_RUNTIME_WATCHER = Event->timer (	2927	# load additional modules
2530	reentrant => 0,	2928	use cf::pod;
2531	data => WF_AUTOCANCEL,
2532	after => 1,
2533	interval => 10,
2534	prio => 6, # keep it lowest so it acts like a watchdog
2535	cb => Coro::unblock_sub {
2536	write_runtime
2537	or warn "ERROR: unable to write runtime file: $!";
2538	},
2539	);
2540		2929
2541	END { cf::emergency_save }	2930	END { cf::emergency_save }
2542		2931
2543	1	2932	1
2544		2933

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