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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.198 by root, Sun Jan 28 01:58:37 2007 UTC vs.
Revision 1.264 by root, Sun May 6 05:44:48 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 3.5 ();	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 $runtime = "$LOCALDIR/runtime";
350		373
		374	# first touch the runtime file to show we are still running:
		375	# the fsync below can take a very very long time.
		376
		377	warn "touching runtime...\n";#d#
		378	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		379	utime undef, undef, $fh;
		380	}
		381
		382	my $guard = cf::lock_acquire "write_runtime";
		383
		384	warn "starting to write runtime...\n";#d#
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	385	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352	or return;	386	or return;
353		387
354	my $value = $cf::RUNTIME + 90 + 10;	388	my $value = $cf::RUNTIME + 90 + 10;
355	# 10 is the runtime save interval, for a monotonic clock	389	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.	390	# 60 allows for the watchdog to kill the server.
357		391
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	392	(aio_write $fh, 0, (length $value), $value, 0) <= 0
359	and return;	393	and return;
360		394
		395	# always fsync - this file is important
361	aio_fsync $fh	396	aio_fsync $fh
362	and return;	397	and return;
363		398
		399	# touch it again to show we are up-to-date
		400	utime undef, undef, $fh;
		401
364	close $fh	402	close $fh
365	or return;	403	or return;
366		404
367	aio_rename "$runtime~", $runtime	405	aio_rename "$runtime~", $runtime
368	and return;	406	and return;
369		407
		408	warn "... done writing runtime.\n";#d#
		409
370	1	410	1
		411	}
		412
		413	=item cf::datalog type => key => value, ...
		414
		415	Log a datalog packet of the given type with the given key-value pairs.
		416
		417	=cut
		418
		419	sub datalog($@) {
		420	my ($type, %kv) = @_;
		421	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	422	}
372		423
373	=back	424	=back
374		425
375	=cut	426	=cut
…		…
750	$filename, length $$rdata, scalar @$objs;	801	$filename, length $$rdata, scalar @$objs;
751		802
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	803	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	804	chmod SAVE_MODE, $fh;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	805	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755	aio_fsync $fh;	806	aio_fsync $fh if $cf::USE_FSYNC;
756	close $fh;	807	close $fh;
757		808
758	if (@$objs) {	809	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	810	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	811	chmod SAVE_MODE, $fh;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	812	my $data = Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	813	aio_write $fh, 0, (length $data), $data, 0;
763	aio_fsync $fh;	814	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	815	close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	816	aio_rename "$filename.pst~", "$filename.pst";
766	}	817	}
767	} else {	818	} else {
768	aio_unlink "$filename.pst";	819	aio_unlink "$filename.pst";
…		…
937	Returns the given player object, loading it if necessary (might block).	988	Returns the given player object, loading it if necessary (might block).
938		989
939	=cut	990	=cut
940		991
941	sub playerdir($) {	992	sub playerdir($) {
942	cf::localdir	993	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	994	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	995	}
948		996
949	sub path($) {	997	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	998	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		999
952	(playerdir $login) . "/$login.pl"	1000	(playerdir $login) . "/playerdata"
953	}	1001	}
954		1002
955	sub find_active($) {	1003	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1004	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1005	and $cf::PLAYER{$_[0]}->active
…		…
970	my $login = $_[0];	1018	my $login = $_[0];
971		1019
972	my $guard = cf::lock_acquire "user_find:$login";	1020	my $guard = cf::lock_acquire "user_find:$login";
973		1021
974	$cf::PLAYER{$_[0]} || do {	1022	$cf::PLAYER{$_[0]} || do {
		1023	# rename old playerfiles to new ones
		1024	#TODO: remove when no longer required
		1025	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1026	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1027	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1028	aio_unlink +(playerdir $login) . "/$login.pl";
		1029
975	my $pl = load_pl path $login	1030	my $pl = load_pl path $login
976	or return;	1031	or return;
977	$cf::PLAYER{$login} = $pl	1032	$cf::PLAYER{$login} = $pl
978	}	1033	}
979	}	1034	}
…		…
1016		1071
1017	=cut	1072	=cut
1018		1073
1019	sub quit_character {	1074	sub quit_character {
1020	my ($pl) = @_;	1075	my ($pl) = @_;
		1076
		1077	my $name = $pl->ob->name;
1021		1078
1022	$pl->{deny_save} = 1;	1079	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1080	$pl->password ("*"); # this should lock out the player until we nuked the dir
1024		1081
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1082	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1030	my $path = playerdir $pl;	1087	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1088	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1089	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1090	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1091	$pl->destroy;
		1092
		1093	my $prefix = qr<^~\Q$name\E/>;
		1094
		1095	# nuke player maps
		1096	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1097
1035	IO::AIO::aio_rmtree $temp;	1098	IO::AIO::aio_rmtree $temp;
		1099	}
		1100
		1101	=item $pl->kick
		1102
		1103	Kicks a player out of the game. This destroys the connection.
		1104
		1105	=cut
		1106
		1107	sub kick {
		1108	my ($pl, $kicker) = @_;
		1109
		1110	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1111	$pl->killer ("kicked");
		1112	$pl->ns->destroy;
1036	}	1113	}
1037		1114
1038	=item cf::player::list_logins	1115	=item cf::player::list_logins
1039		1116
1040	Returns am arrayref of all valid playernames in the system, can take a	1117	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1118	while and may block, so not sync_job-capable, ever.
1042		1119
1043	=cut	1120	=cut
1044		1121
1045	sub list_logins {	1122	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1123	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1124	or return [];
1048		1125
1049	my @logins;	1126	my @logins;
1050		1127
1051	for my $login (@$dirs) {	1128	for my $login (@$dirs) {
…		…
1068	=cut	1145	=cut
1069		1146
1070	sub maps($) {	1147	sub maps($) {
1071	my ($pl) = @_;	1148	my ($pl) = @_;
1072		1149
		1150	$pl = ref $pl ? $pl->ob->name : $pl;
		1151
1073	my $files = aio_readdir playerdir $pl	1152	my $files = aio_readdir playerdir $pl
1074	or return;	1153	or return;
1075		1154
1076	my @paths;	1155	my @paths;
1077		1156
1078	for (@$files) {	1157	for (@$files) {
1079	utf8::decode $_;	1158	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1159	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1160	next unless /^$PATH_SEP/o;
1082		1161
1083	s/\.map$//;	1162	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1163	}
1086		1164
1087	\@paths	1165	\@paths
1088	}	1166	}
1089		1167
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1168	=item $player->ext_reply ($msgid, %msg)
1091		1169
1092	Sends an ext reply to the player.	1170	Sends an ext reply to the player.
1093		1171
1094	=cut	1172	=cut
1095		1173
1096	sub ext_reply($$$%) {	1174	sub ext_reply($$%) {
1097	my ($self, $id, %msg) = @_;	1175	my ($self, $id, %msg) = @_;
1098		1176
1099	$msg{msgid} = $id;	1177	$msg{msgid} = $id;
1100		1178
1101	$self->send ("ext " . cf::to_json \%msg);	1179	$self->send ("ext " . cf::to_json \%msg);
1102	}	1180	}
1103		1181
1104	package cf;	1182	=item $player->ext_event ($type, %msg)
		1183
		1184	Sends an ext event to the client.
		1185
		1186	=cut
		1187
		1188	sub ext_event($$%) {
		1189	my ($self, $type, %msg) = @_;
		1190
		1191	$self->ns->ext_event ($type, %msg);
		1192	}
		1193
		1194	=head3 cf::region
		1195
		1196	=over 4
		1197
		1198	=cut
		1199
		1200	package cf::region;
		1201
		1202	=item cf::region::find_by_path $path
		1203
		1204	Tries to decuce the probable region for a map knowing only its path.
		1205
		1206	=cut
		1207
		1208	sub find_by_path($) {
		1209	my ($path) = @_;
		1210
		1211	my ($match, $specificity);
		1212
		1213	for my $region (list) {
		1214	if ($region->match && $path =~ $region->match) {
		1215	($match, $specificity) = ($region, $region->specificity)
		1216	if $region->specificity > $specificity;
		1217	}
		1218	}
		1219
		1220	$match
		1221	}
1105		1222
1106	=back	1223	=back
1107
1108		1224
1109	=head3 cf::map	1225	=head3 cf::map
1110		1226
1111	=over 4	1227	=over 4
1112		1228
…		…
1178	sub normalise {	1294	sub normalise {
1179	my ($path, $base) = @_;	1295	my ($path, $base) = @_;
1180		1296
1181	$path = "$path"; # make sure its a string	1297	$path = "$path"; # make sure its a string
1182		1298
		1299	$path =~ s/\.map$//;
		1300
1183	# map plan:	1301	# map plan:
1184	#	1302	#
1185	# /! non-realised random map exit (special hack!)	1303	# /! non-realised random map exit (special hack!)
1186	# {... are special paths that are not being touched	1304	# {... are special paths that are not being touched
1187	# ?xxx/... are special absolute paths	1305	# ?xxx/... are special absolute paths
…		…
1248		1366
1249	# the original (read-only) location	1367	# the original (read-only) location
1250	sub load_path {	1368	sub load_path {
1251	my ($self) = @_;	1369	my ($self) = @_;
1252		1370
1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1371	"$MAPDIR/$self->{path}.map"
1254	}	1372	}
1255		1373
1256	# the temporary/swap location	1374	# the temporary/swap location
1257	sub save_path {	1375	sub save_path {
1258	my ($self) = @_;	1376	my ($self) = @_;
1259		1377
1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1378	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1379	"$TMPDIR/$path.map"
1262	}	1380	}
1263		1381
1264	# the unique path, undef == no special unique path	1382	# the unique path, undef == no special unique path
1265	sub uniq_path {	1383	sub uniq_path {
1266	my ($self) = @_;	1384	my ($self) = @_;
1267		1385
1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1386	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1387	"$UNIQUEDIR/$path"
1270	}	1388	}
1271		1389
1272	# and all this just because we cannot iterate over	1390	# and all this just because we cannot iterate over
1273	# all maps in C++...	1391	# all maps in C++...
1274	sub change_all_map_light {	1392	sub change_all_map_light {
…		…
1288		1406
1289	sub load_header_from($) {	1407	sub load_header_from($) {
1290	my ($self, $path) = @_;	1408	my ($self, $path) = @_;
1291		1409
1292	utf8::encode $path;	1410	utf8::encode $path;
1293	aio_open $path, O_RDONLY, 0	1411	#aio_open $path, O_RDONLY, 0
1294	or return;	1412	# or return;
1295		1413
1296	$self->_load_header ($path)	1414	$self->_load_header ($path)
1297	or return;	1415	or return;
1298		1416
1299	$self->{load_path} = $path;	1417	$self->{load_path} = $path;
…		…
1341	$self->load_header_orig	1459	$self->load_header_orig
1342	or return;	1460	or return;
1343	$self->prepare_orig;	1461	$self->prepare_orig;
1344	}	1462	}
1345		1463
		1464	$self->default_region (cf::region::find_by_path $self->{path})
		1465	unless $self->default_region;
		1466
1346	1	1467	1
1347	}	1468	}
1348		1469
1349	sub find;	1470	sub find;
1350	sub find {	1471	sub find {
…		…
1383	my ($self) = @_;	1504	my ($self) = @_;
1384		1505
1385	local $self->{deny_reset} = 1; # loading can take a long time	1506	local $self->{deny_reset} = 1; # loading can take a long time
1386		1507
1387	my $path = $self->{path};	1508	my $path = $self->{path};
		1509
		1510	{
1388	my $guard = cf::lock_acquire "map_load:$path";	1511	my $guard = cf::lock_acquire "map_load:$path";
1389		1512
1390	return if $self->in_memory != cf::MAP_SWAPPED;	1513	return if $self->in_memory != cf::MAP_SWAPPED;
1391		1514
1392	$self->in_memory (cf::MAP_LOADING);	1515	$self->in_memory (cf::MAP_LOADING);
1393		1516
1394	$self->alloc;	1517	$self->alloc;
1395		1518
1396	$self->pre_load;	1519	$self->pre_load;
1397
1398	$self->_load_objects ($self->{load_path}, 1)
1399	or return;
1400
1401	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1402	if delete $self->{load_original};
1403
1404	if (my $uniq = $self->uniq_path) {
1405	utf8::encode $uniq;
1406	if (aio_open $uniq, O_RDONLY, 0) {
1407	$self->clear_unique_items;
1408	$self->_load_objects ($uniq, 0);
1409	}
1410	}
1411
1412	Coro::cede;
1413
1414	# now do the right thing for maps
1415	$self->link_multipart_objects;
1416
1417	unless ($self->{deny_activate}) {
1418	$self->decay_objects;
1419	$self->fix_auto_apply;
1420	$self->update_buttons;
1421	Coro::cede;	1520	Coro::cede;
1422	$self->set_darkness_map;	1521
		1522	$self->_load_objects ($self->{load_path}, 1)
		1523	or return;
		1524
		1525	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1526	if delete $self->{load_original};
		1527
		1528	if (my $uniq = $self->uniq_path) {
		1529	utf8::encode $uniq;
		1530	if (aio_open $uniq, O_RDONLY, 0) {
		1531	$self->clear_unique_items;
		1532	$self->_load_objects ($uniq, 0);
		1533	}
		1534	}
		1535
		1536	Coro::cede;
		1537	# now do the right thing for maps
		1538	$self->link_multipart_objects;
1423	$self->difficulty ($self->estimate_difficulty)	1539	$self->difficulty ($self->estimate_difficulty)
1424	unless $self->difficulty;	1540	unless $self->difficulty;
1425	Coro::cede;	1541	Coro::cede;
		1542
		1543	unless ($self->{deny_activate}) {
		1544	$self->decay_objects;
		1545	$self->fix_auto_apply;
		1546	$self->update_buttons;
		1547	Coro::cede;
		1548	$self->set_darkness_map;
		1549	Coro::cede;
1426	$self->activate;	1550	$self->activate;
		1551	}
		1552
		1553	$self->in_memory (cf::MAP_IN_MEMORY);
1427	}	1554	}
1428		1555
1429	$self->post_load;	1556	$self->post_load;
1430
1431	$self->in_memory (cf::MAP_IN_MEMORY);
1432	}	1557	}
1433		1558
1434	sub customise_for {	1559	sub customise_for {
1435	my ($self, $ob) = @_;	1560	my ($self, $ob) = @_;
1436		1561
…		…
1579	return if $self->players;	1704	return if $self->players;
1580	return if $self->isa ("ext::map_per_player");#d#	1705	return if $self->isa ("ext::map_per_player");#d#
1581		1706
1582	warn "resetting map ", $self->path;#d#	1707	warn "resetting map ", $self->path;#d#
1583		1708
		1709	$self->in_memory (cf::MAP_SWAPPED);
		1710
		1711	# need to save uniques path
		1712	unless ($self->{deny_save}) {
		1713	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1714
		1715	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1716	if $uniq;
		1717	}
		1718
1584	delete $cf::MAP{$self->path};	1719	delete $cf::MAP{$self->path};
1585		1720
1586	$self->in_memory (cf::MAP_SWAPPED);
1587	$self->clear;	1721	$self->clear;
1588		1722
1589	$_->clear_links_to ($self) for values %cf::MAP;	1723	$_->clear_links_to ($self) for values %cf::MAP;
1590		1724
1591	$self->unlink_save;	1725	$self->unlink_save;
…		…
1618	instantiated unique items. May block.	1752	instantiated unique items. May block.
1619		1753
1620	=cut	1754	=cut
1621		1755
1622	sub unique_maps() {	1756	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1757	my $files = aio_readdir $UNIQUEDIR
1624	or return;	1758	or return;
1625		1759
1626	my @paths;	1760	my @paths;
1627		1761
1628	for (@$files) {	1762	for (@$files) {
1629	utf8::decode $_;	1763	utf8::decode $_;
1630	next if /\.pst$/;	1764	next if /\.pst$/;
1631	next unless /^$PATH_SEP/o;	1765	next unless /^$PATH_SEP/o;
1632		1766
1633	s/\.map$//;	1767	push @paths, cf::map::normalise $_;
1634	push @paths, $_;
1635	}	1768	}
1636		1769
1637	\@paths	1770	\@paths
1638	}	1771	}
1639		1772
…		…
1782	$map->load;	1915	$map->load;
1783	$map->load_diag;	1916	$map->load_diag;
1784		1917
1785	return unless $self->contr->active;	1918	return unless $self->contr->active;
1786	$self->activate_recursive;	1919	$self->activate_recursive;
		1920
		1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1787	$self->enter_map ($map, $x, $y);	1922	$self->enter_map ($map, $x, $y);
1788	}	1923	}
1789		1924
1790	cf::player->attach (	1925	cf::player->attach (
1791	on_logout => sub {	1926	on_logout => sub {
…		…
1804	# try to abort aborted map switching on player login :)	1939	# try to abort aborted map switching on player login :)
1805	# should happen only on crashes	1940	# should happen only on crashes
1806	if ($pl->ob->{_link_pos}) {	1941	if ($pl->ob->{_link_pos}) {
1807	$pl->ob->enter_link;	1942	$pl->ob->enter_link;
1808	(async {	1943	(async {
1809	# we need this sleep as the login has a concurrent enter_exit running
1810	# and this sleep increases chances of the player not ending up in scorn
1811	$pl->ob->reply (undef,	1944	$pl->ob->reply (undef,
1812	"There was an internal problem at your last logout, "	1945	"There was an internal problem at your last logout, "
1813	. "the server will try to bring you to your intended destination in a second.",	1946	. "the server will try to bring you to your intended destination in a second.",
1814	cf::NDI_RED);	1947	cf::NDI_RED);
		1948	# we need this sleep as the login has a concurrent enter_exit running
		1949	# and this sleep increases chances of the player not ending up in scorn
1815	Coro::Timer::sleep 1;	1950	Coro::Timer::sleep 1;
1816	$pl->ob->leave_link;	1951	$pl->ob->leave_link;
1817	})->prio (2);	1952	})->prio (2);
1818	}	1953	}
1819	},	1954	},
…		…
1883		2018
1884	$rmp->{random_seed} ||= $exit->random_seed;	2019	$rmp->{random_seed} ||= $exit->random_seed;
1885		2020
1886	my $data = cf::to_json $rmp;	2021	my $data = cf::to_json $rmp;
1887	my $md5 = Digest::MD5::md5_hex $data;	2022	my $md5 = Digest::MD5::md5_hex $data;
1888	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2023	my $meta = "$RANDOMDIR/$md5.meta";
1889		2024
1890	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2025	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1891	aio_write $fh, 0, (length $data), $data, 0;	2026	aio_write $fh, 0, (length $data), $data, 0;
1892	undef $fh;	2027	undef $fh;
1893	aio_rename "$meta~", $meta;	2028	aio_rename "$meta~", $meta;
…		…
1902		2037
1903	return unless $self->type == cf::PLAYER;	2038	return unless $self->type == cf::PLAYER;
1904		2039
1905	if ($exit->slaying eq "/!") {	2040	if ($exit->slaying eq "/!") {
1906	#TODO: this should de-fi-ni-te-ly not be a sync-job	2041	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2042	# the problem is that $exit might not survive long enough
		2043	# so it needs to be done right now, right here
1907	cf::sync_job { prepare_random_map $exit };	2044	cf::sync_job { prepare_random_map $exit };
1908	}	2045	}
1909		2046
1910	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2047	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1911	my $hp = $exit->stats->hp;	2048	my $hp = $exit->stats->hp;
…		…
1919	$self->goto ($slaying, $hp, $sp);	2056	$self->goto ($slaying, $hp, $sp);
1920		2057
1921	1;	2058	1;
1922	}) {	2059	}) {
1923	$self->message ("Something went wrong deep within the crossfire server. "	2060	$self->message ("Something went wrong deep within the crossfire server. "
1924	. "I'll try to bring you back to the map you were before. "	2061	. "I'll try to bring you back to the map you were before. "
1925	. "Please report this to the dungeon master!",	2062	. "Please report this to the dungeon master!",
1926	cf::NDI_UNIQUE | cf::NDI_RED);	2063	cf::NDI_UNIQUE | cf::NDI_RED);
1927		2064
1928	warn "ERROR in enter_exit: $@";	2065	warn "ERROR in enter_exit: $@";
1929	$self->leave_link;	2066	$self->leave_link;
1930	}	2067	}
1931	})->prio (1);	2068	})->prio (1);
…		…
1944		2081
1945	sub cf::client::send_drawinfo {	2082	sub cf::client::send_drawinfo {
1946	my ($self, $text, $flags) = @_;	2083	my ($self, $text, $flags) = @_;
1947		2084
1948	utf8::encode $text;	2085	utf8::encode $text;
1949	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2086	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1950	}	2087	}
1951		2088
		2089	=item $client->ext_event ($type, %msg)
		2090
		2091	Sends an exti event to the client.
		2092
		2093	=cut
		2094
		2095	sub cf::client::ext_event($$%) {
		2096	my ($self, $type, %msg) = @_;
		2097
		2098	$msg{msgtype} = "event_$type";
		2099	$self->send_packet ("ext " . cf::to_json \%msg);
		2100	}
1952		2101
1953	=item $success = $client->query ($flags, "text", \&cb)	2102	=item $success = $client->query ($flags, "text", \&cb)
1954		2103
1955	Queues a query to the client, calling the given callback with	2104	Queues a query to the client, calling the given callback with
1956	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2105	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1985	# get handled first	2134	# get handled first
1986	my $queue = delete $ns->{query_queue}	2135	my $queue = delete $ns->{query_queue}
1987	or return; # be conservative, not sure how that can happen, but we saw a crash here	2136	or return; # be conservative, not sure how that can happen, but we saw a crash here
1988		2137
1989	(shift @$queue)->[1]->($msg);	2138	(shift @$queue)->[1]->($msg);
		2139	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1990		2140
1991	push @{ $ns->{query_queue} }, @$queue;	2141	push @{ $ns->{query_queue} }, @$queue;
1992		2142
1993	if (@{ $ns->{query_queue} } == @$queue) {	2143	if (@{ $ns->{query_queue} } == @$queue) {
1994	if (@$queue) {	2144	if (@$queue) {
…		…
2052		2202
2053	# here we export the classes and methods available to script code	2203	# here we export the classes and methods available to script code
2054		2204
2055	=pod	2205	=pod
2056		2206
2057	The following fucntions and emthods are available within a safe environment:	2207	The following functions and methods are available within a safe environment:
2058		2208
2059	cf::object contr pay_amount pay_player map	2209	cf::object contr pay_amount pay_player map
2060	cf::object::player player	2210	cf::object::player player
2061	cf::player peaceful	2211	cf::player peaceful
2062	cf::map trigger	2212	cf::map trigger
…		…
2147	#############################################################################	2297	#############################################################################
2148		2298
2149	=head2 EXTENSION DATABASE SUPPORT	2299	=head2 EXTENSION DATABASE SUPPORT
2150		2300
2151	Crossfire maintains a very simple database for extension use. It can	2301	Crossfire maintains a very simple database for extension use. It can
2152	currently store anything that can be serialised using Storable, which	2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2153	excludes objects.	2303	convert to/from binary).
2154		2304
2155	The parameter C<$family> should best start with the name of the extension	2305	The parameter C<$family> should best start with the name of the extension
2156	using it, it should be unique.	2306	using it, it should be unique.
2157		2307
2158	=over 4	2308	=over 4
2159		2309
2160	=item $hashref = cf::db_get $family
2161
2162	Return a hashref for use by the extension C<$family>, which can be
2163	modified. After modifications, you have to call C<cf::db_dirty> or
2164	C<cf::db_sync>.
2165
2166	=item $value = cf::db_get $family => $key	2310	=item $value = cf::db_get $family => $key
2167		2311
2168	Returns a single value from the database	2312	Returns a single value from the database.
2169
2170	=item cf::db_put $family => $hashref
2171
2172	Stores the given family hashref into the database. Updates are delayed, if
2173	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2174		2313
2175	=item cf::db_put $family => $key => $value	2314	=item cf::db_put $family => $key => $value
2176		2315
2177	Stores the given C<$value> in the family hash. Updates are delayed, if you	2316	Stores the given C<$value> in the family.
2178	want the data to be synced to disk immediately, use C<cf::db_sync>.
2179
2180	=item cf::db_dirty
2181
2182	Marks the database as dirty, to be updated at a later time.
2183
2184	=item cf::db_sync
2185
2186	Immediately write the database to disk I<if it is dirty>.
2187		2317
2188	=cut	2318	=cut
2189		2319
2190	our $DB;	2320	our $DB;
2191		2321
2192	{	2322	sub db_init {
2193	my $path = cf::localdir . "/database.pst";	2323	unless ($DB) {
		2324	$DB = BDB::db_create $DB_ENV;
2194		2325
2195	sub db_load() {	2326	cf::sync_job {
2196	$DB = stat $path ? Storable::retrieve $path : { };	2327	eval {
2197	}	2328	$DB->set_flags (BDB::CHKSUM);
2198		2329
2199	my $pid;	2330	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2200		2331	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2201	sub db_save() {	2332	cf::cleanup "db_open(db): $!" if $!;
2202	waitpid $pid, 0 if $pid;	2333	};
2203	if (0 == ($pid = fork)) {	2334	cf::cleanup "db_open(db): $@" if $@;
2204	$DB->{_meta}{version} = 1;
2205	Storable::nstore $DB, "$path~";
2206	rename "$path~", $path;
2207	cf::_exit 0 if defined $pid;
2208	}	2335	};
2209	}	2336	}
		2337	}
2210		2338
2211	my $dirty;
2212
2213	sub db_sync() {
2214	db_save if $dirty;
2215	undef $dirty;
2216	}
2217
2218	my $idle = Event->idle (
2219	reentrant => 0,
2220	min => 10,
2221	max => 20,
2222	repeat => 0,
2223	data => WF_AUTOCANCEL,
2224	cb => \&db_sync,
2225	);
2226
2227	sub db_dirty() {
2228	$dirty = 1;
2229	$idle->start;
2230	}
2231
2232	sub db_get($;$) {	2339	sub db_get($$) {
2233	@_ >= 2	2340	my $key = "$_[0]/$_[1]";
2234	? $DB->{$_[0]}{$_[1]}
2235	: ($DB->{$_[0]} ||= { })
2236	}
2237		2341
		2342	cf::sync_job {
		2343	BDB::db_get $DB, undef, $key, my $data;
		2344
		2345	$! ? ()
		2346	: $data
		2347	}
		2348	}
		2349
2238	sub db_put($$;$) {	2350	sub db_put($$$) {
2239	if (@_ >= 3) {	2351	BDB::dbreq_pri 4;
2240	$DB->{$_[0]}{$_[1]} = $_[2];	2352	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2241	} else {	2353	}
2242	$DB->{$_[0]} = $_[1];
2243	}
2244	db_dirty;
2245	}
2246		2354
2247	cf::global->attach (	2355	=item cf::cache $id => [$paths...], $processversion => $process
2248	prio => 10000,	2356
2249	on_cleanup => sub {	2357	Generic caching function that returns the value of the resource $id,
2250	db_sync;	2358	caching and regenerating as required.
		2359
		2360	This function can block.
		2361
		2362	=cut
		2363
		2364	sub cache {
		2365	my ($id, $src, $processversion, $process) = @_;
		2366
		2367	my $meta =
		2368	join "\x00",
		2369	$processversion,
		2370	map {
		2371	aio_stat $_
		2372	and Carp::croak "$_: $!";
		2373
		2374	($_, (stat _)[7,9])
		2375	} @$src;
		2376
		2377	my $dbmeta = db_get cache => "$id/meta";
		2378	if ($dbmeta ne $meta) {
		2379	# changed, we may need to process
		2380
		2381	my @data;
		2382	my $md5;
		2383
		2384	for (0 .. $#$src) {
		2385	0 <= aio_load $src->[$_], $data[$_]
		2386	or Carp::croak "$src->[$_]: $!";
2251	},	2387	}
2252	);	2388
		2389	# if processing is expensive, check
		2390	# checksum first
		2391	if (1) {
		2392	$md5 =
		2393	join "\x00",
		2394	$processversion,
		2395	map {
		2396	Coro::cede;
		2397	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2398	} 0.. $#$src;
		2399
		2400
		2401	my $dbmd5 = db_get cache => "$id/md5";
		2402	if ($dbmd5 eq $md5) {
		2403	db_put cache => "$id/meta", $meta;
		2404
		2405	return db_get cache => "$id/data";
		2406	}
		2407	}
		2408
		2409	my $t1 = Time::HiRes::time;
		2410	my $data = $process->(\@data);
		2411	my $t2 = Time::HiRes::time;
		2412
		2413	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2414
		2415	db_put cache => "$id/data", $data;
		2416	db_put cache => "$id/md5" , $md5;
		2417	db_put cache => "$id/meta", $meta;
		2418
		2419	return $data;
		2420	}
		2421
		2422	db_get cache => "$id/data"
2253	}	2423	}
		2424
		2425	=item fork_call { }, $args
		2426
		2427	Executes the given code block with the given arguments in a seperate
		2428	process, returning the results. Everything must be serialisable with
		2429	Coro::Storable. May, of course, block. Note that the executed sub may
		2430	never block itself or use any form of Event handling.
		2431
		2432	=cut
		2433
		2434	sub fork_call(&@) {
		2435	my ($cb, @args) = @_;
		2436
		2437	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2438	# or die "socketpair: $!";
		2439	pipe my $fh1, my $fh2
		2440	or die "pipe: $!";
		2441
		2442	if (my $pid = fork) {
		2443	close $fh2;
		2444
		2445	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2446	$res = Coro::Storable::thaw $res;
		2447
		2448	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2449
		2450	die $$res unless "ARRAY" eq ref $res;
		2451
		2452	return wantarray ? @$res : $res->[-1];
		2453	} else {
		2454	reset_signals;
		2455	local $SIG{__WARN__};
		2456	local $SIG{__DIE__};
		2457	eval {
		2458	close $fh1;
		2459
		2460	my @res = eval { $cb->(@args) };
		2461	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2462	};
		2463
		2464	warn $@ if $@;
		2465	_exit 0;
		2466	}
		2467	}
		2468
		2469
2254		2470
2255	#############################################################################	2471	#############################################################################
2256	# the server's main()	2472	# the server's init and main functions
		2473
		2474	sub load_facedata($) {
		2475	my ($path) = @_;
		2476
		2477	warn "loading facedata from $path\n";
		2478
		2479	my $facedata;
		2480	0 < aio_load $path, $facedata
		2481	or die "$path: $!";
		2482
		2483	$facedata = Coro::Storable::thaw $facedata;
		2484
		2485	$facedata->{version} == 2
		2486	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2487
		2488	{
		2489	my $faces = $facedata->{faceinfo};
		2490
		2491	while (my ($face, $info) = each %$faces) {
		2492	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2493	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2494	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2495	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2496	Coro::cede;
		2497	}
		2498
		2499	while (my ($face, $info) = each %$faces) {
		2500	next unless $info->{smooth};
		2501	my $idx = cf::face::find $face
		2502	or next;
		2503	if (my $smooth = cf::face::find $info->{smooth}) {
		2504	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2505	} else {
		2506	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2507	}
		2508	Coro::cede;
		2509	}
		2510	}
		2511
		2512	{
		2513	my $anims = $facedata->{animinfo};
		2514
		2515	while (my ($anim, $info) = each %$anims) {
		2516	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2517	Coro::cede;
		2518	}
		2519
		2520	cf::anim::invalidate_all; # d'oh
		2521	}
		2522
		2523	1
		2524	}
		2525
		2526	sub reload_regions {
		2527	load_resource_file "$MAPDIR/regions"
		2528	or die "unable to load regions file\n";
		2529	}
		2530
		2531	sub reload_facedata {
		2532	load_facedata "$DATADIR/facedata"
		2533	or die "unable to load facedata\n";
		2534	}
		2535
		2536	sub reload_archetypes {
		2537	load_resource_file "$DATADIR/archetypes"
		2538	or die "unable to load archetypes\n";
		2539	}
		2540
		2541	sub reload_treasures {
		2542	load_resource_file "$DATADIR/treasures"
		2543	or die "unable to load treasurelists\n";
		2544	}
		2545
		2546	sub reload_resources {
		2547	warn "reloading resource files...\n";
		2548
		2549	reload_regions;
		2550	reload_facedata;
		2551	reload_archetypes;
		2552	reload_treasures;
		2553
		2554	warn "finished reloading resource files\n";
		2555	}
		2556
		2557	sub init {
		2558	reload_resources;
		2559	}
2257		2560
2258	sub cfg_load {	2561	sub cfg_load {
2259	open my $fh, "<:utf8", cf::confdir . "/config"	2562	open my $fh, "<:utf8", "$CONFDIR/config"
2260	or return;	2563	or return;
2261		2564
2262	local $/;	2565	local $/;
2263	*CFG = YAML::Syck::Load <$fh>;	2566	*CFG = YAML::Syck::Load <$fh>;
2264		2567
…		…
2284	Event::one_event;	2587	Event::one_event;
2285	})->prio (Coro::PRIO_MAX);	2588	})->prio (Coro::PRIO_MAX);
2286	};	2589	};
2287		2590
2288	cfg_load;	2591	cfg_load;
2289	db_load;	2592	db_init;
2290	load_extensions;	2593	load_extensions;
2291		2594
2292	$TICK_WATCHER->start;	2595	$TICK_WATCHER->start;
2293	Event::loop;	2596	Event::loop;
2294	}	2597	}
…		…
2333	my $map = $cf::MAP{$path} or next;	2636	my $map = $cf::MAP{$path} or next;
2334	$map->valid or next;	2637	$map->valid or next;
2335	$map->save;	2638	$map->save;
2336	}	2639	}
2337	warn "end emergency map save\n";	2640	warn "end emergency map save\n";
		2641
		2642	warn "begin emergency database checkpoint\n";
		2643	BDB::db_env_txn_checkpoint $DB_ENV;
		2644	warn "end emergency database checkpoint\n";
2338	};	2645	};
2339		2646
2340	warn "leave emergency perl save\n";	2647	warn "leave emergency perl save\n";
2341	}	2648	}
2342		2649
		2650	sub post_cleanup {
		2651	my ($make_core) = @_;
		2652
		2653	warn Carp::longmess "post_cleanup backtrace"
		2654	if $make_core;
		2655	}
		2656
2343	sub reload() {	2657	sub do_reload_perl() {
2344	# can/must only be called in main	2658	# can/must only be called in main
2345	if ($Coro::current != $Coro::main) {	2659	if ($Coro::current != $Coro::main) {
2346	warn "can only reload from main coroutine";	2660	warn "can only reload from main coroutine";
2347	return;	2661	return;
2348	}	2662	}
2349		2663
2350	warn "reloading...";	2664	warn "reloading...";
2351		2665
2352	warn "cancelling server ticker";	2666	warn "entering sync_job";
2353	$TICK_WATCHER->cancel;
2354		2667
		2668	cf::sync_job {
		2669	cf::write_runtime; # external watchdog should not bark
2355	cf::emergency_save;	2670	cf::emergency_save;
		2671	cf::write_runtime; # external watchdog should not bark
2356		2672
2357	eval {	2673	warn "syncing database to disk";
		2674	BDB::db_env_txn_checkpoint $DB_ENV;
		2675
2358	# if anything goes wrong in here, we should simply crash as we already saved	2676	# if anything goes wrong in here, we should simply crash as we already saved
2359
2360	warn "syncing database to disk";
2361	cf::db_sync;
2362		2677
2363	warn "cancelling all WF_AUTOCANCEL watchers";	2678	warn "cancelling all WF_AUTOCANCEL watchers";
2364	for (Event::all_watchers) {	2679	for (Event::all_watchers) {
2365	$_->cancel if $_->data & WF_AUTOCANCEL;	2680	$_->cancel if $_->data & WF_AUTOCANCEL;
2366	}	2681	}
2367		2682
2368	warn "flushing outstanding aio requests";	2683	warn "flushing outstanding aio requests";
2369	for (;;) {	2684	for (;;) {
		2685	BDB::flush;
2370	IO::AIO::flush;	2686	IO::AIO::flush;
2371	Coro::cede;	2687	Coro::cede;
2372	last unless IO::AIO::nreqs;	2688	last unless IO::AIO::nreqs || BDB::nreqs;
2373	warn "iterate...";	2689	warn "iterate...";
2374	}	2690	}
		2691
		2692	++$RELOAD;
2375		2693
2376	warn "cancelling all extension coros";	2694	warn "cancelling all extension coros";
2377	$_->cancel for values %EXT_CORO;	2695	$_->cancel for values %EXT_CORO;
2378	%EXT_CORO = ();	2696	%EXT_CORO = ();
2379		2697
…		…
2419	Symbol::delete_package "safe::$_"	2737	Symbol::delete_package "safe::$_"
2420	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2738	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2421		2739
2422	warn "unloading cf.pm \"a bit\"";	2740	warn "unloading cf.pm \"a bit\"";
2423	delete $INC{"cf.pm"};	2741	delete $INC{"cf.pm"};
		2742	delete $INC{"cf/pod.pm"};
2424		2743
2425	# don't, removes xs symbols, too,	2744	# don't, removes xs symbols, too,
2426	# and global variables created in xs	2745	# and global variables created in xs
2427	#Symbol::delete_package __PACKAGE__;	2746	#Symbol::delete_package __PACKAGE__;
2428		2747
…		…
2432	require cf;	2751	require cf;
2433	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2434		2753
2435	warn "loading config and database again";	2754	warn "loading config and database again";
2436	cf::cfg_load;	2755	cf::cfg_load;
2437	cf::db_load;
2438		2756
2439	warn "loading extensions";	2757	warn "loading extensions";
2440	cf::load_extensions;	2758	cf::load_extensions;
2441		2759
2442	warn "reattaching attachments to objects/players";	2760	warn "reattaching attachments to objects/players";
2443	_global_reattach;	2761	_global_reattach; # objects, sockets
2444	warn "reattaching attachments to maps";	2762	warn "reattaching attachments to maps";
2445	reattach $_ for values %MAP;	2763	reattach $_ for values %MAP;
		2764	warn "reattaching attachments to players";
		2765	reattach $_ for values %PLAYER;
2446		2766
2447	warn "restarting server ticker";	2767	warn "leaving sync_job";
2448		2768
2449	$TICK_WATCHER->start;	2769	1
2450	};	2770	} or do {
2451
2452	if ($@) {
2453	warn $@;	2771	warn $@;
2454	warn "error while reloading, exiting.";	2772	warn "error while reloading, exiting.";
2455	exit 1;	2773	exit 1;
2456	}	2774	};
2457		2775
2458	warn "reloaded";	2776	warn "reloaded";
2459	};	2777	};
2460		2778
2461	our $RELOAD_WATCHER; # used only during reload	2779	our $RELOAD_WATCHER; # used only during reload
2462		2780
		2781	sub reload_perl() {
		2782	# doing reload synchronously and two reloads happen back-to-back,
		2783	# coro crashes during coro_state_free->destroy here.
		2784
		2785	$RELOAD_WATCHER ||= Event->timer (
		2786	reentrant => 0,
		2787	after => 0,
		2788	data => WF_AUTOCANCEL,
		2789	cb => sub {
		2790	do_reload_perl;
		2791	undef $RELOAD_WATCHER;
		2792	},
		2793	);
		2794	}
		2795
2463	register_command "reload" => sub {	2796	register_command "reload" => sub {
2464	my ($who, $arg) = @_;	2797	my ($who, $arg) = @_;
2465		2798
2466	if ($who->flag (FLAG_WIZ)) {	2799	if ($who->flag (FLAG_WIZ)) {
2467	$who->message ("reloading server.");	2800	$who->message ("reloading server.");
2468		2801	async { reload_perl };
2469	# doing reload synchronously and two reloads happen back-to-back,
2470	# coro crashes during coro_state_free->destroy here.
2471
2472	$RELOAD_WATCHER ||= Event->timer (
2473	reentrant => 0,
2474	after => 0,
2475	data => WF_AUTOCANCEL,
2476	cb => sub {
2477	reload;
2478	undef $RELOAD_WATCHER;
2479	},
2480	);
2481	}	2802	}
2482	};	2803	};
2483		2804
2484	unshift @INC, $LIBDIR;	2805	unshift @INC, $LIBDIR;
2485		2806
2486	my $bug_warning = 0;	2807	my $bug_warning = 0;
		2808
		2809	our @WAIT_FOR_TICK;
		2810	our @WAIT_FOR_TICK_BEGIN;
		2811
		2812	sub wait_for_tick {
		2813	return unless $TICK_WATCHER->is_active;
		2814	return if $Coro::current == $Coro::main;
		2815
		2816	my $signal = new Coro::Signal;
		2817	push @WAIT_FOR_TICK, $signal;
		2818	$signal->wait;
		2819	}
		2820
		2821	sub wait_for_tick_begin {
		2822	return unless $TICK_WATCHER->is_active;
		2823	return if $Coro::current == $Coro::main;
		2824
		2825	my $signal = new Coro::Signal;
		2826	push @WAIT_FOR_TICK_BEGIN, $signal;
		2827	$signal->wait;
		2828	}
2487		2829
2488	$TICK_WATCHER = Event->timer (	2830	$TICK_WATCHER = Event->timer (
2489	reentrant => 0,	2831	reentrant => 0,
2490	parked => 1,	2832	parked => 1,
2491	prio => 0,	2833	prio => 0,
…		…
2499	}	2841	}
2500		2842
2501	$NOW = Event::time;	2843	$NOW = Event::time;
2502		2844
2503	cf::server_tick; # one server iteration	2845	cf::server_tick; # one server iteration
		2846
2504	$RUNTIME += $TICK;	2847	$RUNTIME += $TICK;
2505	$NEXT_TICK += $TICK;	2848	$NEXT_TICK += $TICK;
2506		2849
2507	$WAIT_FOR_TICK->broadcast;	2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2508	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2851	$NEXT_RUNTIME_WRITE = $NOW + 10;
2509		2852	Coro::async_pool {
2510	Event::sweep;	2853	write_runtime
2511	Coro::cede_notself;	2854	or warn "ERROR: unable to write runtime file: $!";
		2855	};
2512		2856	}
		2857
2513	# my $AFTER = Event::time;	2858	# my $AFTER = Event::time;
2514	# warn $AFTER - $NOW;#d#	2859	# warn $AFTER - $NOW;#d#
2515		2860
2516	# if we are delayed by four ticks or more, skip them all	2861	# if we are delayed by four ticks or more, skip them all
2517	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2518		2863
2519	$TICK_WATCHER->at ($NEXT_TICK);	2864	$TICK_WATCHER->at ($NEXT_TICK);
2520	$TICK_WATCHER->start;	2865	$TICK_WATCHER->start;
		2866
		2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2868	$sig->send;
		2869	}
		2870	while (my $sig = shift @WAIT_FOR_TICK) {
		2871	$sig->send;
		2872	}
		2873
		2874	_post_tick;
2521	},	2875	},
2522	);	2876	);
2523		2877
		2878	{
		2879	BDB::max_poll_time $TICK * 0.1;
		2880	$BDB_POLL_WATCHER = Event->io (
		2881	reentrant => 0,
		2882	fd => BDB::poll_fileno,
		2883	poll => 'r',
		2884	prio => 0,
		2885	data => WF_AUTOCANCEL,
		2886	cb => \&BDB::poll_cb,
		2887	);
		2888	BDB::min_parallel 8;
		2889
		2890	BDB::set_sync_prepare {
		2891	my $status;
		2892	my $current = $Coro::current;
		2893	(
		2894	sub {
		2895	$status = $!;
		2896	$current->ready; undef $current;
		2897	},
		2898	sub {
		2899	Coro::schedule while defined $current;
		2900	$! = $status;
		2901	},
		2902	)
		2903	};
		2904
		2905	unless ($DB_ENV) {
		2906	$DB_ENV = BDB::db_env_create;
		2907
		2908	cf::sync_job {
		2909	eval {
		2910	BDB::db_env_open
		2911	$DB_ENV,
		2912	$BDBDIR,
		2913	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2914	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2915	0666;
		2916
		2917	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2918
		2919	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2920	$DB_ENV->set_lk_detect;
		2921	};
		2922
		2923	cf::cleanup "db_env_open(db): $@" if $@;
		2924	};
		2925	}
		2926	}
		2927
		2928	{
		2929	IO::AIO::min_parallel 8;
		2930
		2931	undef $Coro::AIO::WATCHER;
2524	IO::AIO::max_poll_time $TICK * 0.1;	2932	IO::AIO::max_poll_time $TICK * 0.1;
2525
2526	undef $Coro::AIO::WATCHER;
2527	$AIO_POLL_WATCHER = Event->io (	2933	$AIO_POLL_WATCHER = Event->io (
2528	reentrant => 0,	2934	reentrant => 0,
		2935	data => WF_AUTOCANCEL,
2529	fd => IO::AIO::poll_fileno,	2936	fd => IO::AIO::poll_fileno,
2530	poll => 'r',	2937	poll => 'r',
2531	prio => 6,	2938	prio => 6,
2532	data => WF_AUTOCANCEL,
2533	cb => \&IO::AIO::poll_cb,	2939	cb => \&IO::AIO::poll_cb,
2534	);	2940	);
		2941	}
2535		2942
2536	$WRITE_RUNTIME_WATCHER = Event->timer (	2943	my $_log_backtrace;
2537	reentrant => 0,	2944
2538	data => WF_AUTOCANCEL,	2945	sub _log_backtrace {
2539	after => 1,	2946	my ($msg, @addr) = @_;
2540	interval => 10,	2947
2541	prio => 6, # keep it lowest so it acts like a watchdog	2948	$msg =~ s/\n//;
2542	cb => Coro::unblock_sub {	2949
2543	write_runtime	2950	# limit the # of concurrent backtraces
2544	or warn "ERROR: unable to write runtime file: $!";	2951	if ($_log_backtrace < 2) {
		2952	++$_log_backtrace;
		2953	async {
		2954	my @bt = fork_call {
		2955	@addr = map { sprintf "%x", $_ } @addr;
		2956	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2957	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2958	or die "addr2line: $!";
		2959
		2960	my @funcs;
		2961	my @res = <$fh>;
		2962	chomp for @res;
		2963	while (@res) {
		2964	my ($func, $line) = splice @res, 0, 2, ();
		2965	push @funcs, "[$func] $line";
		2966	}
		2967
		2968	@funcs
		2969	};
		2970
		2971	LOG llevInfo, "[ABT] $msg\n";
		2972	LOG llevInfo, "[ABT] $_\n" for @bt;
		2973	--$_log_backtrace;
		2974	};
		2975	} else {
		2976	LOG llevInfo, "[ABT] $msg\n";
		2977	LOG llevInfo, "[ABT] [suppressed]\n";
2545	},	2978	}
2546	);	2979	}
		2980
		2981	# load additional modules
		2982	use cf::pod;
2547		2983
2548	END { cf::emergency_save }	2984	END { cf::emergency_save }
2549		2985
2550	1	2986	1
2551		2987

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