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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.192 by root, Wed Jan 24 01:43:01 2007 UTC vs.
Revision 1.256 by root, Sat Apr 21 16:56:32 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
…		…
1178	sub normalise {	1280	sub normalise {
1179	my ($path, $base) = @_;	1281	my ($path, $base) = @_;
1180		1282
1181	$path = "$path"; # make sure its a string	1283	$path = "$path"; # make sure its a string
1182		1284
		1285	$path =~ s/\.map$//;
		1286
1183	# map plan:	1287	# map plan:
1184	#	1288	#
1185	# /! non-realised random map exit (special hack!)	1289	# /! non-realised random map exit (special hack!)
1186	# {... are special paths that are not being touched	1290	# {... are special paths that are not being touched
1187	# ?xxx/... are special absolute paths	1291	# ?xxx/... are special absolute paths
…		…
1248		1352
1249	# the original (read-only) location	1353	# the original (read-only) location
1250	sub load_path {	1354	sub load_path {
1251	my ($self) = @_;	1355	my ($self) = @_;
1252		1356
1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1357	"$MAPDIR/$self->{path}.map"
1254	}	1358	}
1255		1359
1256	# the temporary/swap location	1360	# the temporary/swap location
1257	sub save_path {	1361	sub save_path {
1258	my ($self) = @_;	1362	my ($self) = @_;
1259		1363
1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1365	"$TMPDIR/$path.map"
1262	}	1366	}
1263		1367
1264	# the unique path, undef == no special unique path	1368	# the unique path, undef == no special unique path
1265	sub uniq_path {	1369	sub uniq_path {
1266	my ($self) = @_;	1370	my ($self) = @_;
1267		1371
1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1373	"$UNIQUEDIR/$path"
1270	}	1374	}
1271		1375
1272	# and all this just because we cannot iterate over	1376	# and all this just because we cannot iterate over
1273	# all maps in C++...	1377	# all maps in C++...
1274	sub change_all_map_light {	1378	sub change_all_map_light {
…		…
1288		1392
1289	sub load_header_from($) {	1393	sub load_header_from($) {
1290	my ($self, $path) = @_;	1394	my ($self, $path) = @_;
1291		1395
1292	utf8::encode $path;	1396	utf8::encode $path;
1293	aio_open $path, O_RDONLY, 0	1397	#aio_open $path, O_RDONLY, 0
1294	or return;	1398	# or return;
1295		1399
1296	$self->_load_header ($path)	1400	$self->_load_header ($path)
1297	or return;	1401	or return;
1298		1402
1299	$self->{load_path} = $path;	1403	$self->{load_path} = $path;
…		…
1341	$self->load_header_orig	1445	$self->load_header_orig
1342	or return;	1446	or return;
1343	$self->prepare_orig;	1447	$self->prepare_orig;
1344	}	1448	}
1345		1449
		1450	$self->default_region (cf::region::find_by_path $self->{path})
		1451	unless $self->default_region;
		1452
1346	1	1453	1
1347	}	1454	}
1348		1455
1349	sub find;	1456	sub find;
1350	sub find {	1457	sub find {
…		…
1362	$map->{last_save} = $cf::RUNTIME;	1469	$map->{last_save} = $cf::RUNTIME;
1363		1470
1364	$map->load_header	1471	$map->load_header
1365	or return;	1472	or return;
1366		1473
1367	if ($map->should_reset) {	1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1368	# doing this can freeze the server in a sync job, obviously	1475	# doing this can freeze the server in a sync job, obviously
1369	#$cf::WAIT_FOR_TICK->wait;	1476	#$cf::WAIT_FOR_TICK->wait;
1370	$map->reset;	1477	$map->reset;
1371	undef $guard;	1478	undef $guard;
1372	return find $path;	1479	return find $path;
…		…
1380	sub post_load { }	1487	sub post_load { }
1381		1488
1382	sub load {	1489	sub load {
1383	my ($self) = @_;	1490	my ($self) = @_;
1384		1491
		1492	local $self->{deny_reset} = 1; # loading can take a long time
		1493
1385	my $path = $self->{path};	1494	my $path = $self->{path};
		1495
		1496	{
1386	my $guard = cf::lock_acquire "map_load:$path";	1497	my $guard = cf::lock_acquire "map_load:$path";
1387		1498
1388	return if $self->in_memory != cf::MAP_SWAPPED;	1499	return if $self->in_memory != cf::MAP_SWAPPED;
1389		1500
1390	$self->in_memory (cf::MAP_LOADING);	1501	$self->in_memory (cf::MAP_LOADING);
1391		1502
1392	$self->alloc;	1503	$self->alloc;
1393		1504
1394	$self->pre_load;	1505	$self->pre_load;
1395
1396	$self->_load_objects ($self->{load_path}, 1)
1397	or return;
1398
1399	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1400	if delete $self->{load_original};
1401
1402	if (my $uniq = $self->uniq_path) {
1403	utf8::encode $uniq;
1404	if (aio_open $uniq, O_RDONLY, 0) {
1405	$self->clear_unique_items;
1406	$self->_load_objects ($uniq, 0);
1407	}
1408	}
1409
1410	Coro::cede;
1411
1412	# now do the right thing for maps
1413	$self->link_multipart_objects;
1414
1415	unless ($self->{deny_activate}) {
1416	$self->decay_objects;
1417	$self->fix_auto_apply;
1418	$self->update_buttons;
1419	Coro::cede;	1506	Coro::cede;
1420	$self->set_darkness_map;	1507
		1508	$self->_load_objects ($self->{load_path}, 1)
		1509	or return;
		1510
		1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1512	if delete $self->{load_original};
		1513
		1514	if (my $uniq = $self->uniq_path) {
		1515	utf8::encode $uniq;
		1516	if (aio_open $uniq, O_RDONLY, 0) {
		1517	$self->clear_unique_items;
		1518	$self->_load_objects ($uniq, 0);
		1519	}
		1520	}
		1521
		1522	Coro::cede;
		1523	# now do the right thing for maps
		1524	$self->link_multipart_objects;
1421	$self->difficulty ($self->estimate_difficulty)	1525	$self->difficulty ($self->estimate_difficulty)
1422	unless $self->difficulty;	1526	unless $self->difficulty;
1423	Coro::cede;	1527	Coro::cede;
		1528
		1529	unless ($self->{deny_activate}) {
		1530	$self->decay_objects;
		1531	$self->fix_auto_apply;
		1532	$self->update_buttons;
		1533	Coro::cede;
		1534	$self->set_darkness_map;
		1535	Coro::cede;
1424	$self->activate;	1536	$self->activate;
		1537	}
		1538
		1539	$self->in_memory (cf::MAP_IN_MEMORY);
		1540
		1541	undef $guard;
1425	}	1542	}
1426		1543
1427	$self->post_load;	1544	$self->post_load;
1428
1429	$self->in_memory (cf::MAP_IN_MEMORY);
1430	}	1545	}
1431		1546
1432	sub customise_for {	1547	sub customise_for {
1433	my ($self, $ob) = @_;	1548	my ($self, $ob) = @_;
1434		1549
…		…
1577	return if $self->players;	1692	return if $self->players;
1578	return if $self->isa ("ext::map_per_player");#d#	1693	return if $self->isa ("ext::map_per_player");#d#
1579		1694
1580	warn "resetting map ", $self->path;#d#	1695	warn "resetting map ", $self->path;#d#
1581		1696
		1697	$self->in_memory (cf::MAP_SWAPPED);
		1698
		1699	# need to save uniques path
		1700	unless ($self->{deny_save}) {
		1701	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1702
		1703	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1704	if $uniq;
		1705	}
		1706
1582	delete $cf::MAP{$self->path};	1707	delete $cf::MAP{$self->path};
1583		1708
1584	$self->in_memory (cf::MAP_SWAPPED);
1585	$self->clear;	1709	$self->clear;
1586		1710
1587	$_->clear_links_to ($self) for values %cf::MAP;	1711	$_->clear_links_to ($self) for values %cf::MAP;
1588		1712
1589	$self->unlink_save;	1713	$self->unlink_save;
…		…
1616	instantiated unique items. May block.	1740	instantiated unique items. May block.
1617		1741
1618	=cut	1742	=cut
1619		1743
1620	sub unique_maps() {	1744	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1745	my $files = aio_readdir $UNIQUEDIR
1622	or return;	1746	or return;
1623		1747
1624	my @paths;	1748	my @paths;
1625		1749
1626	for (@$files) {	1750	for (@$files) {
1627	utf8::decode $_;	1751	utf8::decode $_;
1628	next if /\.pst$/;	1752	next if /\.pst$/;
1629	next unless /^$PATH_SEP/o;	1753	next unless /^$PATH_SEP/o;
1630		1754
1631	s/\.map$//;	1755	push @paths, cf::map::normalise $_;
1632	push @paths, $_;
1633	}	1756	}
1634		1757
1635	\@paths	1758	\@paths
1636	}	1759	}
1637		1760
…		…
1731	=cut	1854	=cut
1732		1855
1733	sub link_map {	1856	sub link_map {
1734	unless ($LINK_MAP) {	1857	unless ($LINK_MAP) {
1735	$LINK_MAP = cf::map::find "{link}"	1858	$LINK_MAP = cf::map::find "{link}"
1736	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	1859	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1737	$LINK_MAP->load;	1860	$LINK_MAP->load;
1738	}	1861	}
1739		1862
1740	$LINK_MAP	1863	$LINK_MAP
1741	}	1864	}
…		…
1748	return if UNIVERSAL::isa $self->map, "ext::map_link";	1871	return if UNIVERSAL::isa $self->map, "ext::map_link";
1749		1872
1750	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1873	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1751	if $self->map;	1874	if $self->map;
1752		1875
1753	$self->enter_map ($LINK_MAP || link_map, 20, 20);	1876	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1754	}	1877	}
1755		1878
1756	sub cf::object::player::leave_link {	1879	sub cf::object::player::leave_link {
1757	my ($self, $map, $x, $y) = @_;	1880	my ($self, $map, $x, $y) = @_;
1758		1881
…		…
1780	$map->load;	1903	$map->load;
1781	$map->load_diag;	1904	$map->load_diag;
1782		1905
1783	return unless $self->contr->active;	1906	return unless $self->contr->active;
1784	$self->activate_recursive;	1907	$self->activate_recursive;
		1908
		1909	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1785	$self->enter_map ($map, $x, $y);	1910	$self->enter_map ($map, $x, $y);
1786	}	1911	}
1787		1912
1788	cf::player->attach (	1913	cf::player->attach (
1789	on_logout => sub {	1914	on_logout => sub {
…		…
1802	# try to abort aborted map switching on player login :)	1927	# try to abort aborted map switching on player login :)
1803	# should happen only on crashes	1928	# should happen only on crashes
1804	if ($pl->ob->{_link_pos}) {	1929	if ($pl->ob->{_link_pos}) {
1805	$pl->ob->enter_link;	1930	$pl->ob->enter_link;
1806	(async {	1931	(async {
1807	# we need this sleep as the login has a concurrent enter_exit running
1808	# and this sleep increases chances of the player not ending up in scorn
1809	$pl->ob->reply (undef,	1932	$pl->ob->reply (undef,
1810	"There was an internal problem at your last logout, "	1933	"There was an internal problem at your last logout, "
1811	. "the server will try to bring you to your intended destination in a second.",	1934	. "the server will try to bring you to your intended destination in a second.",
1812	cf::NDI_RED);	1935	cf::NDI_RED);
		1936	# we need this sleep as the login has a concurrent enter_exit running
		1937	# and this sleep increases chances of the player not ending up in scorn
1813	Coro::Timer::sleep 1;	1938	Coro::Timer::sleep 1;
1814	$pl->ob->leave_link;	1939	$pl->ob->leave_link;
1815	})->prio (2);	1940	})->prio (2);
1816	}	1941	}
1817	},	1942	},
…		…
1825	my ($self, $path, $x, $y) = @_;	1950	my ($self, $path, $x, $y) = @_;
1826		1951
1827	$self->enter_link;	1952	$self->enter_link;
1828		1953
1829	(async {	1954	(async {
		1955	my $map = eval {
1830	my $map = cf::map::find $path;	1956	my $map = cf::map::find $path;
1831	$map = $map->customise_for ($self) if $map;	1957	$map = $map->customise_for ($self) if $map;
1832		1958	$map
1833	# warn "entering ", $map->path, " at ($x, $y)\n"	1959	} or
1834	# if $map;
1835
1836	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1960	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1837		1961
1838	$self->leave_link ($map, $x, $y);	1962	$self->leave_link ($map, $x, $y);
1839	})->prio (1);	1963	})->prio (1);
1840	}	1964	}
1841		1965
…		…
1872	# that depends on the exit object	1996	# that depends on the exit object
1873		1997
1874	my $rmp = parse_random_map_params $exit->msg;	1998	my $rmp = parse_random_map_params $exit->msg;
1875		1999
1876	if ($exit->map) {	2000	if ($exit->map) {
1877	$rmp->{region} = $exit->map->region_name;	2001	$rmp->{region} = $exit->region->name;
1878	$rmp->{origin_map} = $exit->map->path;	2002	$rmp->{origin_map} = $exit->map->path;
1879	$rmp->{origin_x} = $exit->x;	2003	$rmp->{origin_x} = $exit->x;
1880	$rmp->{origin_y} = $exit->y;	2004	$rmp->{origin_y} = $exit->y;
1881	}	2005	}
1882		2006
1883	$rmp->{random_seed} ||= $exit->random_seed;	2007	$rmp->{random_seed} ||= $exit->random_seed;
1884		2008
1885	my $data = cf::to_json $rmp;	2009	my $data = cf::to_json $rmp;
1886	my $md5 = Digest::MD5::md5_hex $data;	2010	my $md5 = Digest::MD5::md5_hex $data;
1887	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2011	my $meta = "$RANDOMDIR/$md5.meta";
1888		2012
1889	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2013	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1890	aio_write $fh, 0, (length $data), $data, 0;	2014	aio_write $fh, 0, (length $data), $data, 0;
1891	undef $fh;	2015	undef $fh;
1892	aio_rename "$meta~", $meta;	2016	aio_rename "$meta~", $meta;
…		…
1899	sub cf::object::player::enter_exit {	2023	sub cf::object::player::enter_exit {
1900	my ($self, $exit) = @_;	2024	my ($self, $exit) = @_;
1901		2025
1902	return unless $self->type == cf::PLAYER;	2026	return unless $self->type == cf::PLAYER;
1903		2027
		2028	if ($exit->slaying eq "/!") {
		2029	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2030	# the problem is that $exit might not survive long enough
		2031	# so it needs to be done right now, right here
		2032	cf::sync_job { prepare_random_map $exit };
		2033	}
		2034
		2035	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2036	my $hp = $exit->stats->hp;
		2037	my $sp = $exit->stats->sp;
		2038
1904	$self->enter_link;	2039	$self->enter_link;
1905		2040
1906	(async {	2041	(async {
1907	$self->deactivate_recursive; # just to be sure	2042	$self->deactivate_recursive; # just to be sure
1908	unless (eval {	2043	unless (eval {
1909	prepare_random_map $exit	2044	$self->goto ($slaying, $hp, $sp);
1910	if $exit->slaying eq "/!";
1911
1912	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1913	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1914		2045
1915	1;	2046	1;
1916	}) {	2047	}) {
1917	$self->message ("Something went wrong deep within the crossfire server. "	2048	$self->message ("Something went wrong deep within the crossfire server. "
1918	. "I'll try to bring you back to the map you were before. "	2049	. "I'll try to bring you back to the map you were before. "
1919	. "Please report this to the dungeon master!",	2050	. "Please report this to the dungeon master!",
1920	cf::NDI_UNIQUE | cf::NDI_RED);	2051	cf::NDI_UNIQUE | cf::NDI_RED);
1921		2052
1922	warn "ERROR in enter_exit: $@";	2053	warn "ERROR in enter_exit: $@";
1923	$self->leave_link;	2054	$self->leave_link;
1924	}	2055	}
1925	})->prio (1);	2056	})->prio (1);
…		…
1938		2069
1939	sub cf::client::send_drawinfo {	2070	sub cf::client::send_drawinfo {
1940	my ($self, $text, $flags) = @_;	2071	my ($self, $text, $flags) = @_;
1941		2072
1942	utf8::encode $text;	2073	utf8::encode $text;
1943	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2074	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1944	}	2075	}
1945		2076
		2077	=item $client->ext_event ($type, %msg)
		2078
		2079	Sends an exti event to the client.
		2080
		2081	=cut
		2082
		2083	sub cf::client::ext_event($$%) {
		2084	my ($self, $type, %msg) = @_;
		2085
		2086	$msg{msgtype} = "event_$type";
		2087	$self->send_packet ("ext " . cf::to_json \%msg);
		2088	}
1946		2089
1947	=item $success = $client->query ($flags, "text", \&cb)	2090	=item $success = $client->query ($flags, "text", \&cb)
1948		2091
1949	Queues a query to the client, calling the given callback with	2092	Queues a query to the client, calling the given callback with
1950	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2093	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1979	# get handled first	2122	# get handled first
1980	my $queue = delete $ns->{query_queue}	2123	my $queue = delete $ns->{query_queue}
1981	or return; # be conservative, not sure how that can happen, but we saw a crash here	2124	or return; # be conservative, not sure how that can happen, but we saw a crash here
1982		2125
1983	(shift @$queue)->[1]->($msg);	2126	(shift @$queue)->[1]->($msg);
		2127	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1984		2128
1985	push @{ $ns->{query_queue} }, @$queue;	2129	push @{ $ns->{query_queue} }, @$queue;
1986		2130
1987	if (@{ $ns->{query_queue} } == @$queue) {	2131	if (@{ $ns->{query_queue} } == @$queue) {
1988	if (@$queue) {	2132	if (@$queue) {
…		…
2046		2190
2047	# here we export the classes and methods available to script code	2191	# here we export the classes and methods available to script code
2048		2192
2049	=pod	2193	=pod
2050		2194
2051	The following fucntions and emthods are available within a safe environment:	2195	The following functions and methods are available within a safe environment:
2052		2196
2053	cf::object contr pay_amount pay_player map	2197	cf::object contr pay_amount pay_player map
2054	cf::object::player player	2198	cf::object::player player
2055	cf::player peaceful	2199	cf::player peaceful
2056	cf::map trigger	2200	cf::map trigger
…		…
2141	#############################################################################	2285	#############################################################################
2142		2286
2143	=head2 EXTENSION DATABASE SUPPORT	2287	=head2 EXTENSION DATABASE SUPPORT
2144		2288
2145	Crossfire maintains a very simple database for extension use. It can	2289	Crossfire maintains a very simple database for extension use. It can
2146	currently store anything that can be serialised using Storable, which	2290	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2147	excludes objects.	2291	convert to/from binary).
2148		2292
2149	The parameter C<$family> should best start with the name of the extension	2293	The parameter C<$family> should best start with the name of the extension
2150	using it, it should be unique.	2294	using it, it should be unique.
2151		2295
2152	=over 4	2296	=over 4
2153		2297
2154	=item $hashref = cf::db_get $family
2155
2156	Return a hashref for use by the extension C<$family>, which can be
2157	modified. After modifications, you have to call C<cf::db_dirty> or
2158	C<cf::db_sync>.
2159
2160	=item $value = cf::db_get $family => $key	2298	=item $value = cf::db_get $family => $key
2161		2299
2162	Returns a single value from the database	2300	Returns a single value from the database.
2163
2164	=item cf::db_put $family => $hashref
2165
2166	Stores the given family hashref into the database. Updates are delayed, if
2167	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2168		2301
2169	=item cf::db_put $family => $key => $value	2302	=item cf::db_put $family => $key => $value
2170		2303
2171	Stores the given C<$value> in the family hash. Updates are delayed, if you	2304	Stores the given C<$value> in the family.
2172	want the data to be synced to disk immediately, use C<cf::db_sync>.
2173
2174	=item cf::db_dirty
2175
2176	Marks the database as dirty, to be updated at a later time.
2177
2178	=item cf::db_sync
2179
2180	Immediately write the database to disk I<if it is dirty>.
2181		2305
2182	=cut	2306	=cut
2183		2307
2184	our $DB;	2308	our $DB;
2185		2309
2186	{	2310	sub db_init {
2187	my $path = cf::localdir . "/database.pst";	2311	unless ($DB) {
		2312	$DB = BDB::db_create $DB_ENV;
2188		2313
2189	sub db_load() {	2314	cf::sync_job {
2190	$DB = stat $path ? Storable::retrieve $path : { };	2315	eval {
2191	}	2316	$DB->set_flags (BDB::CHKSUM);
2192		2317
2193	my $pid;	2318	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2194		2319	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2195	sub db_save() {	2320	cf::cleanup "db_open(db): $!" if $!;
2196	waitpid $pid, 0 if $pid;	2321	};
2197	if (0 == ($pid = fork)) {	2322	cf::cleanup "db_open(db): $@" if $@;
2198	$DB->{_meta}{version} = 1;
2199	Storable::nstore $DB, "$path~";
2200	rename "$path~", $path;
2201	cf::_exit 0 if defined $pid;
2202	}	2323	};
2203	}	2324	}
		2325	}
2204		2326
2205	my $dirty;
2206
2207	sub db_sync() {
2208	db_save if $dirty;
2209	undef $dirty;
2210	}
2211
2212	my $idle = Event->idle (
2213	reentrant => 0,
2214	min => 10,
2215	max => 20,
2216	repeat => 0,
2217	data => WF_AUTOCANCEL,
2218	cb => \&db_sync,
2219	);
2220
2221	sub db_dirty() {
2222	$dirty = 1;
2223	$idle->start;
2224	}
2225
2226	sub db_get($;$) {	2327	sub db_get($$) {
2227	@_ >= 2	2328	my $key = "$_[0]/$_[1]";
2228	? $DB->{$_[0]}{$_[1]}
2229	: ($DB->{$_[0]} ||= { })
2230	}
2231		2329
		2330	cf::sync_job {
		2331	BDB::db_get $DB, undef, $key, my $data;
		2332
		2333	$! ? ()
		2334	: $data
		2335	}
		2336	}
		2337
2232	sub db_put($$;$) {	2338	sub db_put($$$) {
2233	if (@_ >= 3) {	2339	BDB::dbreq_pri 4;
2234	$DB->{$_[0]}{$_[1]} = $_[2];	2340	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2235	} else {	2341	}
2236	$DB->{$_[0]} = $_[1];
2237	}
2238	db_dirty;
2239	}
2240		2342
2241	cf::global->attach (	2343	=item cf::cache $id => [$paths...], $processversion => $process
2242	prio => 10000,	2344
2243	on_cleanup => sub {	2345	Generic caching function that returns the value of the resource $id,
2244	db_sync;	2346	caching and regenerating as required.
		2347
		2348	This function can block.
		2349
		2350	=cut
		2351
		2352	sub cache {
		2353	my ($id, $src, $processversion, $process) = @_;
		2354
		2355	my $meta =
		2356	join "\x00",
		2357	$processversion,
		2358	map {
		2359	aio_stat $_
		2360	and Carp::croak "$_: $!";
		2361
		2362	($_, (stat _)[7,9])
		2363	} @$src;
		2364
		2365	my $dbmeta = db_get cache => "$id/meta";
		2366	if ($dbmeta ne $meta) {
		2367	# changed, we may need to process
		2368
		2369	my @data;
		2370	my $md5;
		2371
		2372	for (0 .. $#$src) {
		2373	0 <= aio_load $src->[$_], $data[$_]
		2374	or Carp::croak "$src->[$_]: $!";
2245	},	2375	}
2246	);	2376
		2377	# if processing is expensive, check
		2378	# checksum first
		2379	if (1) {
		2380	$md5 =
		2381	join "\x00",
		2382	$processversion,
		2383	map {
		2384	Coro::cede;
		2385	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2386	} 0.. $#$src;
		2387
		2388
		2389	my $dbmd5 = db_get cache => "$id/md5";
		2390	if ($dbmd5 eq $md5) {
		2391	db_put cache => "$id/meta", $meta;
		2392
		2393	return db_get cache => "$id/data";
		2394	}
		2395	}
		2396
		2397	my $t1 = Time::HiRes::time;
		2398	my $data = $process->(\@data);
		2399	my $t2 = Time::HiRes::time;
		2400
		2401	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2402
		2403	db_put cache => "$id/data", $data;
		2404	db_put cache => "$id/md5" , $md5;
		2405	db_put cache => "$id/meta", $meta;
		2406
		2407	return $data;
		2408	}
		2409
		2410	db_get cache => "$id/data"
2247	}	2411	}
		2412
		2413	=item fork_call { }, $args
		2414
		2415	Executes the given code block with the given arguments in a seperate
		2416	process, returning the results. Everything must be serialisable with
		2417	Coro::Storable. May, of course, block. Note that the executed sub may
		2418	never block itself or use any form of Event handling.
		2419
		2420	=cut
		2421
		2422	sub fork_call(&@) {
		2423	my ($cb, @args) = @_;
		2424
		2425	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2426	# or die "socketpair: $!";
		2427	pipe my $fh1, my $fh2
		2428	or die "pipe: $!";
		2429
		2430	if (my $pid = fork) {
		2431	close $fh2;
		2432
		2433	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2434	$res = Coro::Storable::thaw $res;
		2435
		2436	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2437
		2438	die $$res unless "ARRAY" eq ref $res;
		2439
		2440	return wantarray ? @$res : $res->[-1];
		2441	} else {
		2442	local $SIG{__WARN__};
		2443	eval {
		2444	local $SIG{__DIE__};
		2445	close $fh1;
		2446
		2447	my @res = eval { $cb->(@args) };
		2448	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2449	};
		2450
		2451	warn $@ if $@;
		2452	_exit 0;
		2453	}
		2454	}
		2455
		2456
2248		2457
2249	#############################################################################	2458	#############################################################################
2250	# the server's main()	2459	# the server's init and main functions
		2460
		2461	sub load_facedata($) {
		2462	my ($path) = @_;
		2463
		2464	warn "loading facedata from $path\n";
		2465
		2466	my $facedata;
		2467	0 < aio_load $path, $facedata
		2468	or die "$path: $!";
		2469
		2470	$facedata = Coro::Storable::thaw $facedata;
		2471
		2472	$facedata->{version} == 2
		2473	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2474
		2475	{
		2476	my $faces = $facedata->{faceinfo};
		2477
		2478	while (my ($face, $info) = each %$faces) {
		2479	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2480	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2481	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2482	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2483	Coro::cede;
		2484	}
		2485
		2486	while (my ($face, $info) = each %$faces) {
		2487	next unless $info->{smooth};
		2488	my $idx = cf::face::find $face
		2489	or next;
		2490	if (my $smooth = cf::face::find $info->{smooth}) {
		2491	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2492	} else {
		2493	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2494	}
		2495	Coro::cede;
		2496	}
		2497	}
		2498
		2499	{
		2500	my $anims = $facedata->{animinfo};
		2501
		2502	while (my ($anim, $info) = each %$anims) {
		2503	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2504	Coro::cede;
		2505	}
		2506
		2507	cf::anim::invalidate_all; # d'oh
		2508	}
		2509
		2510	1
		2511	}
		2512
		2513	sub reload_regions {
		2514	load_resource_file "$MAPDIR/regions"
		2515	or die "unable to load regions file\n";
		2516	}
		2517
		2518	sub reload_facedata {
		2519	load_facedata "$DATADIR/facedata"
		2520	or die "unable to load facedata\n";
		2521	}
		2522
		2523	sub reload_archetypes {
		2524	load_resource_file "$DATADIR/archetypes"
		2525	or die "unable to load archetypes\n";
		2526	}
		2527
		2528	sub reload_treasures {
		2529	load_resource_file "$DATADIR/treasures"
		2530	or die "unable to load treasurelists\n";
		2531	}
		2532
		2533	sub reload_resources {
		2534	warn "reloading resource files...\n";
		2535
		2536	reload_regions;
		2537	reload_facedata;
		2538	reload_archetypes;
		2539	reload_treasures;
		2540
		2541	warn "finished reloading resource files\n";
		2542	}
		2543
		2544	sub init {
		2545	reload_resources;
		2546	}
2251		2547
2252	sub cfg_load {	2548	sub cfg_load {
2253	open my $fh, "<:utf8", cf::confdir . "/config"	2549	open my $fh, "<:utf8", "$CONFDIR/config"
2254	or return;	2550	or return;
2255		2551
2256	local $/;	2552	local $/;
2257	*CFG = YAML::Syck::Load <$fh>;	2553	*CFG = YAML::Syck::Load <$fh>;
2258		2554
…		…
2278	Event::one_event;	2574	Event::one_event;
2279	})->prio (Coro::PRIO_MAX);	2575	})->prio (Coro::PRIO_MAX);
2280	};	2576	};
2281		2577
2282	cfg_load;	2578	cfg_load;
2283	db_load;	2579	db_init;
2284	load_extensions;	2580	load_extensions;
2285		2581
2286	$TICK_WATCHER->start;	2582	$TICK_WATCHER->start;
2287	Event::loop;	2583	Event::loop;
2288	}	2584	}
…		…
2327	my $map = $cf::MAP{$path} or next;	2623	my $map = $cf::MAP{$path} or next;
2328	$map->valid or next;	2624	$map->valid or next;
2329	$map->save;	2625	$map->save;
2330	}	2626	}
2331	warn "end emergency map save\n";	2627	warn "end emergency map save\n";
		2628
		2629	warn "begin emergency database checkpoint\n";
		2630	BDB::db_env_txn_checkpoint $DB_ENV;
		2631	warn "end emergency database checkpoint\n";
2332	};	2632	};
2333		2633
2334	warn "leave emergency perl save\n";	2634	warn "leave emergency perl save\n";
2335	}	2635	}
2336		2636
		2637	sub post_cleanup {
		2638	my ($make_core) = @_;
		2639
		2640	warn Carp::longmess "post_cleanup backtrace"
		2641	if $make_core;
		2642	}
		2643
2337	sub reload() {	2644	sub do_reload_perl() {
2338	# can/must only be called in main	2645	# can/must only be called in main
2339	if ($Coro::current != $Coro::main) {	2646	if ($Coro::current != $Coro::main) {
2340	warn "can only reload from main coroutine";	2647	warn "can only reload from main coroutine";
2341	return;	2648	return;
2342	}	2649	}
2343		2650
2344	warn "reloading...";	2651	warn "reloading...";
2345		2652
2346	warn "cancelling server ticker";	2653	warn "entering sync_job";
2347	$TICK_WATCHER->cancel;
2348		2654
		2655	cf::sync_job {
		2656	cf::write_runtime; # external watchdog should not bark
2349	cf::emergency_save;	2657	cf::emergency_save;
		2658	cf::write_runtime; # external watchdog should not bark
2350		2659
2351	eval {	2660	warn "syncing database to disk";
		2661	BDB::db_env_txn_checkpoint $DB_ENV;
		2662
2352	# if anything goes wrong in here, we should simply crash as we already saved	2663	# if anything goes wrong in here, we should simply crash as we already saved
2353
2354	warn "syncing database to disk";
2355	cf::db_sync;
2356		2664
2357	warn "cancelling all WF_AUTOCANCEL watchers";	2665	warn "cancelling all WF_AUTOCANCEL watchers";
2358	for (Event::all_watchers) {	2666	for (Event::all_watchers) {
2359	$_->cancel if $_->data & WF_AUTOCANCEL;	2667	$_->cancel if $_->data & WF_AUTOCANCEL;
2360	}	2668	}
2361		2669
2362	warn "flushing outstanding aio requests";	2670	warn "flushing outstanding aio requests";
2363	for (;;) {	2671	for (;;) {
		2672	BDB::flush;
2364	IO::AIO::flush;	2673	IO::AIO::flush;
2365	Coro::cede;	2674	Coro::cede;
2366	last unless IO::AIO::nreqs;	2675	last unless IO::AIO::nreqs || BDB::nreqs;
2367	warn "iterate...";	2676	warn "iterate...";
2368	}	2677	}
		2678
		2679	++$RELOAD;
2369		2680
2370	warn "cancelling all extension coros";	2681	warn "cancelling all extension coros";
2371	$_->cancel for values %EXT_CORO;	2682	$_->cancel for values %EXT_CORO;
2372	%EXT_CORO = ();	2683	%EXT_CORO = ();
2373		2684
…		…
2413	Symbol::delete_package "safe::$_"	2724	Symbol::delete_package "safe::$_"
2414	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2725	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2415		2726
2416	warn "unloading cf.pm \"a bit\"";	2727	warn "unloading cf.pm \"a bit\"";
2417	delete $INC{"cf.pm"};	2728	delete $INC{"cf.pm"};
		2729	delete $INC{"cf/pod.pm"};
2418		2730
2419	# don't, removes xs symbols, too,	2731	# don't, removes xs symbols, too,
2420	# and global variables created in xs	2732	# and global variables created in xs
2421	#Symbol::delete_package __PACKAGE__;	2733	#Symbol::delete_package __PACKAGE__;
2422		2734
…		…
2426	require cf;	2738	require cf;
2427	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2739	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2428		2740
2429	warn "loading config and database again";	2741	warn "loading config and database again";
2430	cf::cfg_load;	2742	cf::cfg_load;
2431	cf::db_load;
2432		2743
2433	warn "loading extensions";	2744	warn "loading extensions";
2434	cf::load_extensions;	2745	cf::load_extensions;
2435		2746
2436	warn "reattaching attachments to objects/players";	2747	warn "reattaching attachments to objects/players";
2437	_global_reattach;	2748	_global_reattach; # objects, sockets
2438	warn "reattaching attachments to maps";	2749	warn "reattaching attachments to maps";
2439	reattach $_ for values %MAP;	2750	reattach $_ for values %MAP;
		2751	warn "reattaching attachments to players";
		2752	reattach $_ for values %PLAYER;
2440		2753
2441	warn "restarting server ticker";	2754	warn "leaving sync_job";
2442		2755
2443	$TICK_WATCHER->start;	2756	1
2444	};	2757	} or do {
2445
2446	if ($@) {
2447	warn $@;	2758	warn $@;
2448	warn "error while reloading, exiting.";	2759	warn "error while reloading, exiting.";
2449	exit 1;	2760	exit 1;
2450	}	2761	};
2451		2762
2452	warn "reloaded";	2763	warn "reloaded";
2453	};	2764	};
2454		2765
2455	our $RELOAD_WATCHER; # used only during reload	2766	our $RELOAD_WATCHER; # used only during reload
2456		2767
		2768	sub reload_perl() {
		2769	# doing reload synchronously and two reloads happen back-to-back,
		2770	# coro crashes during coro_state_free->destroy here.
		2771
		2772	$RELOAD_WATCHER ||= Event->timer (
		2773	reentrant => 0,
		2774	after => 0,
		2775	data => WF_AUTOCANCEL,
		2776	cb => sub {
		2777	do_reload_perl;
		2778	undef $RELOAD_WATCHER;
		2779	},
		2780	);
		2781	}
		2782
2457	register_command "reload" => sub {	2783	register_command "reload" => sub {
2458	my ($who, $arg) = @_;	2784	my ($who, $arg) = @_;
2459		2785
2460	if ($who->flag (FLAG_WIZ)) {	2786	if ($who->flag (FLAG_WIZ)) {
2461	$who->message ("reloading server.");	2787	$who->message ("reloading server.");
2462		2788	async { reload_perl };
2463	# doing reload synchronously and two reloads happen back-to-back,
2464	# coro crashes during coro_state_free->destroy here.
2465
2466	$RELOAD_WATCHER ||= Event->timer (
2467	reentrant => 0,
2468	after => 0,
2469	data => WF_AUTOCANCEL,
2470	cb => sub {
2471	reload;
2472	undef $RELOAD_WATCHER;
2473	},
2474	);
2475	}	2789	}
2476	};	2790	};
2477		2791
2478	unshift @INC, $LIBDIR;	2792	unshift @INC, $LIBDIR;
2479		2793
2480	my $bug_warning = 0;	2794	my $bug_warning = 0;
		2795
		2796	our @WAIT_FOR_TICK;
		2797	our @WAIT_FOR_TICK_BEGIN;
		2798
		2799	sub wait_for_tick {
		2800	return unless $TICK_WATCHER->is_active;
		2801	return if $Coro::current == $Coro::main;
		2802
		2803	my $signal = new Coro::Signal;
		2804	push @WAIT_FOR_TICK, $signal;
		2805	$signal->wait;
		2806	}
		2807
		2808	sub wait_for_tick_begin {
		2809	return unless $TICK_WATCHER->is_active;
		2810	return if $Coro::current == $Coro::main;
		2811
		2812	my $signal = new Coro::Signal;
		2813	push @WAIT_FOR_TICK_BEGIN, $signal;
		2814	$signal->wait;
		2815	}
2481		2816
2482	$TICK_WATCHER = Event->timer (	2817	$TICK_WATCHER = Event->timer (
2483	reentrant => 0,	2818	reentrant => 0,
2484	parked => 1,	2819	parked => 1,
2485	prio => 0,	2820	prio => 0,
…		…
2493	}	2828	}
2494		2829
2495	$NOW = Event::time;	2830	$NOW = Event::time;
2496		2831
2497	cf::server_tick; # one server iteration	2832	cf::server_tick; # one server iteration
		2833
2498	$RUNTIME += $TICK;	2834	$RUNTIME += $TICK;
2499	$NEXT_TICK += $TICK;	2835	$NEXT_TICK += $TICK;
2500		2836
2501	$WAIT_FOR_TICK->broadcast;	2837	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2502	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2838	$NEXT_RUNTIME_WRITE = $NOW + 10;
2503		2839	Coro::async_pool {
2504	Event::sweep;	2840	write_runtime
2505	Coro::cede_notself;	2841	or warn "ERROR: unable to write runtime file: $!";
		2842	};
2506		2843	}
		2844
2507	# my $AFTER = Event::time;	2845	# my $AFTER = Event::time;
2508	# warn $AFTER - $NOW;#d#	2846	# warn $AFTER - $NOW;#d#
2509		2847
2510	# if we are delayed by four ticks or more, skip them all	2848	# if we are delayed by four ticks or more, skip them all
2511	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2849	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2512		2850
2513	$TICK_WATCHER->at ($NEXT_TICK);	2851	$TICK_WATCHER->at ($NEXT_TICK);
2514	$TICK_WATCHER->start;	2852	$TICK_WATCHER->start;
		2853
		2854	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2855	$sig->send;
		2856	}
		2857	while (my $sig = shift @WAIT_FOR_TICK) {
		2858	$sig->send;
		2859	}
		2860
		2861	_post_tick;
2515	},	2862	},
2516	);	2863	);
2517		2864
		2865	{
		2866	BDB::max_poll_time $TICK * 0.1;
		2867	$BDB_POLL_WATCHER = Event->io (
		2868	reentrant => 0,
		2869	fd => BDB::poll_fileno,
		2870	poll => 'r',
		2871	prio => 0,
		2872	data => WF_AUTOCANCEL,
		2873	cb => \&BDB::poll_cb,
		2874	);
		2875	BDB::min_parallel 8;
		2876
		2877	BDB::set_sync_prepare {
		2878	my $status;
		2879	my $current = $Coro::current;
		2880	(
		2881	sub {
		2882	$status = $!;
		2883	$current->ready; undef $current;
		2884	},
		2885	sub {
		2886	Coro::schedule while defined $current;
		2887	$! = $status;
		2888	},
		2889	)
		2890	};
		2891
		2892	unless ($DB_ENV) {
		2893	$DB_ENV = BDB::db_env_create;
		2894
		2895	cf::sync_job {
		2896	eval {
		2897	BDB::db_env_open
		2898	$DB_ENV,
		2899	$BDBDIR,
		2900	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2901	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2902	0666;
		2903
		2904	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2905
		2906	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2907	$DB_ENV->set_lk_detect;
		2908	};
		2909
		2910	cf::cleanup "db_env_open(db): $@" if $@;
		2911	};
		2912	}
		2913	}
		2914
		2915	{
		2916	IO::AIO::min_parallel 8;
		2917
		2918	undef $Coro::AIO::WATCHER;
2518	IO::AIO::max_poll_time $TICK * 0.1;	2919	IO::AIO::max_poll_time $TICK * 0.1;
2519
2520	undef $Coro::AIO::WATCHER;
2521	$AIO_POLL_WATCHER = Event->io (	2920	$AIO_POLL_WATCHER = Event->io (
2522	reentrant => 0,	2921	reentrant => 0,
		2922	data => WF_AUTOCANCEL,
2523	fd => IO::AIO::poll_fileno,	2923	fd => IO::AIO::poll_fileno,
2524	poll => 'r',	2924	poll => 'r',
2525	prio => 6,	2925	prio => 6,
2526	data => WF_AUTOCANCEL,
2527	cb => \&IO::AIO::poll_cb,	2926	cb => \&IO::AIO::poll_cb,
2528	);	2927	);
		2928	}
2529		2929
2530	$WRITE_RUNTIME_WATCHER = Event->timer (	2930	# load additional modules
2531	reentrant => 0,	2931	use cf::pod;
2532	data => WF_AUTOCANCEL,
2533	after => 1,
2534	interval => 10,
2535	prio => 6, # keep it lowest so it acts like a watchdog
2536	cb => Coro::unblock_sub {
2537	write_runtime
2538	or warn "ERROR: unable to write runtime file: $!";
2539	},
2540	);
2541		2932
2542	END { cf::emergency_save }	2933	END { cf::emergency_save }
2543		2934
2544	1	2935	1
2545		2936

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