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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.166 by root, Sat Jan 13 23:06:13 2007 UTC vs.
Revision 1.262 by root, Sat Apr 28 05:55:55 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 3.3 ();	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;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	76	our $NEXT_TICK;
50	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;
51		82
52	our %CFG;	83	our %CFG;
53		84
54	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	86	our $RUNTIME;
56		87
57	our %PLAYER; # all users	88	our %PLAYER; # all users
58	our %MAP; # all maps	89	our %MAP; # all maps
59	our $LINK_MAP; # the special {link} map, which is always available	90	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64		91
65	# 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 ∕
66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67		94
68	binmode STDOUT;	95	binmode STDOUT;
69	binmode STDERR;	96	binmode STDERR;
70		97
71	# read virtual server time, if available	98	# read virtual server time, if available
72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
73	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
74	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
75	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
76	}	103	}
77		104
78	mkdir cf::localdir;	105	mkdir $_
79	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
80	mkdir cf::localdir . "/" . cf::tmpdir;
81	mkdir cf::localdir . "/" . cf::uniquedir;
82	mkdir $RANDOM_MAPS;
83		107
84	our $EMERGENCY_POSITION;	108	our $EMERGENCY_POSITION;
		109
		110	sub cf::map::normalise;
85		111
86	#############################################################################	112	#############################################################################
87		113
88	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
89		115
…		…
96	=item $cf::RUNTIME	122	=item $cf::RUNTIME
97		123
98	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
99	every server tick.	125	every server tick.
100		126
101	=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
102		130
103	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
104	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.
105		135
106	=item $cf::NOW	136	=item $cf::NOW
107		137
108	The time of the last (current) server tick.	138	The time of the last (current) server tick.
109		139
…		…
114	=item %cf::CFG	144	=item %cf::CFG
115		145
116	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
117	from wherever your confdir points to.	147	from wherever your confdir points to.
118		148
119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	149	=item cf::wait_for_tick, cf::wait_for_tick_begin
120		150
121	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
122	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
123	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.
124	window of cpu time available, or simply to synchronise to the server tick.
125		154
126	=back	155	=back
127		156
128	=cut	157	=cut
129		158
130	BEGIN {	159	BEGIN {
131	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
132	my $msg = join "", @_;	161	my $msg = join "", @_;
133	utf8::encode $msg;
134		162
135	$msg .= "\n"	163	$msg .= "\n"
136	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
137		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
138	LOG llevError, $msg;	169	LOG llevError, $msg;
139	};	170	};
140	}	171	}
141		172
142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
188	$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;
189	$d	220	$d
190	} || "[unable to dump $_[0]: '$@']";	221	} || "[unable to dump $_[0]: '$@']";
191	}	222	}
192		223
193	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
194		225
195	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
196		227
197	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
198		229
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
207		231
208	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
209
210	=cut
211
212	sub to_json($) {
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
214	JSON::Syck::Dump $_[0]
215	}
216		233
217	=item cf::lock_wait $string	234	=item cf::lock_wait $string
218		235
219	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
220		237
…		…
226	returned.	243	returned.
227		244
228	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
229	uses map_find and cf::map::load uses map_load).	246	uses map_find and cf::map::load uses map_load).
230		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
		251
231	=cut	252	=cut
232		253
233	our %LOCK;	254	our %LOCK;
234		255
235	sub lock_wait($) {	256	sub lock_wait($) {
…		…
254	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
256	}	277	}
257	}	278	}
258		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
259	sub freeze_mainloop {	286	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	287	return unless $TICK_WATCHER->is_active;
261		288
262	my $guard = Coro::guard { $TICK_WATCHER->start };	289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
263	$TICK_WATCHER->stop;	292	$TICK_WATCHER->stop;
264	$guard	293	$guard
265	}	294	}
266		295
267	=item cf::async { BLOCK }	296	=item cf::async { BLOCK }
…		…
338		367
339	$coro	368	$coro
340	}	369	}
341		370
342	sub write_runtime {	371	sub write_runtime {
343	return unless $TICK_WATCHER->is_active;	372	my $guard = cf::lock_acquire "write_runtime";
344		373
345	my $runtime = cf::localdir . "/runtime";	374	my $runtime = "$LOCALDIR/runtime";
346		375
347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
348	or return;	377	or return;
349		378
		379	my $value = $cf::RUNTIME + 90 + 10;
350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	380	# 10 is the runtime save interval, for a monotonic clock
		381	# 60 allows for the watchdog to kill the server.
		382
351	(aio_write $fh, 0, (length $value), $value, 0) <= 0	383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
352	and return;	384	and return;
353		385
		386	# always fsync - this file is important
354	aio_fsync $fh	387	aio_fsync $fh
355	and return;	388	and return;
356		389
357	close $fh	390	close $fh
358	or return;	391	or return;
359		392
360	aio_rename "$runtime~", $runtime	393	aio_rename "$runtime~", $runtime
361	and return;	394	and return;
362		395
363	1	396	1
		397	}
		398
		399	=item cf::datalog type => key => value, ...
		400
		401	Log a datalog packet of the given type with the given key-value pairs.
		402
		403	=cut
		404
		405	sub datalog($@) {
		406	my ($type, %kv) = @_;
		407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
364	}	408	}
365		409
366	=back	410	=back
367		411
368	=cut	412	=cut
…		…
499	our @CB_TYPE = (); # registry for type (cf-object class) based events	543	our @CB_TYPE = (); # registry for type (cf-object class) based events
500	our @CB_MAP = ();	544	our @CB_MAP = ();
501		545
502	my %attachment;	546	my %attachment;
503		547
		548	sub cf::attachable::thawer_merge {
		549	# simply override everything except _meta
		550	local $_[0]{_meta};
		551	%{$_[0]} = %{$_[1]};
		552	}
		553
504	sub _attach_cb($$$$) {	554	sub _attach_cb($$$$) {
505	my ($registry, $event, $prio, $cb) = @_;	555	my ($registry, $event, $prio, $cb) = @_;
506		556
507	use sort 'stable';	557	use sort 'stable';
508		558
…		…
679	# object support	729	# object support
680		730
681	sub reattach {	731	sub reattach {
682	# basically do the same as instantiate, without calling instantiate	732	# basically do the same as instantiate, without calling instantiate
683	my ($obj) = @_;	733	my ($obj) = @_;
		734
		735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684		736
685	my $registry = $obj->registry;	737	my $registry = $obj->registry;
686		738
687	@$registry = ();	739	@$registry = ();
688		740
…		…
735	$filename, length $$rdata, scalar @$objs;	787	$filename, length $$rdata, scalar @$objs;
736		788
737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738	chmod SAVE_MODE, $fh;	790	chmod SAVE_MODE, $fh;
739	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
740	aio_fsync $fh;	792	aio_fsync $fh if $cf::USE_FSYNC;
741	close $fh;	793	close $fh;
742		794
743	if (@$objs) {	795	if (@$objs) {
744	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) {
745	chmod SAVE_MODE, $fh;	797	chmod SAVE_MODE, $fh;
746	my $data = Storable::nfreeze { version => 1, objs => $objs };	798	my $data = Storable::nfreeze { version => 1, objs => $objs };
747	aio_write $fh, 0, (length $data), $data, 0;	799	aio_write $fh, 0, (length $data), $data, 0;
748	aio_fsync $fh;	800	aio_fsync $fh if $cf::USE_FSYNC;
749	close $fh;	801	close $fh;
750	aio_rename "$filename.pst~", "$filename.pst";	802	aio_rename "$filename.pst~", "$filename.pst";
751	}	803	}
752	} else {	804	} else {
753	aio_unlink "$filename.pst";	805	aio_unlink "$filename.pst";
…		…
900	} or warn "$ext not loaded: $@";	952	} or warn "$ext not loaded: $@";
901	}	953	}
902	}	954	}
903		955
904	#############################################################################	956	#############################################################################
905	# load/save/clean perl data associated with a map
906
907	*cf::mapsupport::on_clean = sub {
908	my ($map) = @_;
909
910	my $path = $map->tmpname;
911	defined $path or return;
912
913	unlink "$path.pst";
914	};
915
916	cf::map->attach (prio => -10000, package => cf::mapsupport::);
917
918	#############################################################################
919		957
920	=head2 CORE EXTENSIONS	958	=head2 CORE EXTENSIONS
921		959
922	Functions and methods that extend core crossfire objects.	960	Functions and methods that extend core crossfire objects.
923		961
…		…
936	Returns the given player object, loading it if necessary (might block).	974	Returns the given player object, loading it if necessary (might block).
937		975
938	=cut	976	=cut
939		977
940	sub playerdir($) {	978	sub playerdir($) {
941	cf::localdir	979	"$PLAYERDIR/"
942	. "/"
943	. cf::playerdir
944	. "/"
945	. (ref $_[0] ? $_[0]->ob->name : $_[0])	980	. (ref $_[0] ? $_[0]->ob->name : $_[0])
946	}	981	}
947		982
948	sub path($) {	983	sub path($) {
949	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	984	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
950		985
951	(playerdir $login) . "/$login.pl"	986	(playerdir $login) . "/playerdata"
952	}	987	}
953		988
954	sub find_active($) {	989	sub find_active($) {
955	$cf::PLAYER{$_[0]}	990	$cf::PLAYER{$_[0]}
956	and $cf::PLAYER{$_[0]}->active	991	and $cf::PLAYER{$_[0]}->active
…		…
959		994
960	sub exists($) {	995	sub exists($) {
961	my ($login) = @_;	996	my ($login) = @_;
962		997
963	$cf::PLAYER{$login}	998	$cf::PLAYER{$login}
964	or cf::sync_job { !aio_stat $login }	999	or cf::sync_job { !aio_stat path $login }
965	}	1000	}
966		1001
967	sub find($) {	1002	sub find($) {
968	return $cf::PLAYER{$_[0]} || do {	1003	return $cf::PLAYER{$_[0]} || do {
969	my $login = $_[0];	1004	my $login = $_[0];
970		1005
971	my $guard = cf::lock_acquire "user_find:$login";	1006	my $guard = cf::lock_acquire "user_find:$login";
972		1007
973	$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
974	my $pl = load_pl path $login	1016	my $pl = load_pl path $login
975	or return;	1017	or return;
976	$cf::PLAYER{$login} = $pl	1018	$cf::PLAYER{$login} = $pl
977	}	1019	}
978	}	1020	}
…		…
1015		1057
1016	=cut	1058	=cut
1017		1059
1018	sub quit_character {	1060	sub quit_character {
1019	my ($pl) = @_;	1061	my ($pl) = @_;
		1062
		1063	my $name = $pl->ob->name;
1020		1064
1021	$pl->{deny_save} = 1;	1065	$pl->{deny_save} = 1;
1022	$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
1023		1067
1024	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1029	my $path = playerdir $pl;	1073	my $path = playerdir $pl;
1030	my $temp = "$path~$cf::RUNTIME~deleting~";	1074	my $temp = "$path~$cf::RUNTIME~deleting~";
1031	aio_rename $path, $temp;	1075	aio_rename $path, $temp;
1032	delete $cf::PLAYER{$pl->ob->name};	1076	delete $cf::PLAYER{$pl->ob->name};
1033	$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
1034	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;
1035	}	1099	}
1036		1100
1037	=item cf::player::list_logins	1101	=item cf::player::list_logins
1038		1102
1039	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
1040	while and may block, so not sync_job-capable, ever.	1104	while and may block, so not sync_job-capable, ever.
1041		1105
1042	=cut	1106	=cut
1043		1107
1044	sub list_logins {	1108	sub list_logins {
1045	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1109	my $dirs = aio_readdir $PLAYERDIR
1046	or return [];	1110	or return [];
1047		1111
1048	my @logins;	1112	my @logins;
1049		1113
1050	for my $login (@$dirs) {	1114	for my $login (@$dirs) {
…		…
1067	=cut	1131	=cut
1068		1132
1069	sub maps($) {	1133	sub maps($) {
1070	my ($pl) = @_;	1134	my ($pl) = @_;
1071		1135
		1136	$pl = ref $pl ? $pl->ob->name : $pl;
		1137
1072	my $files = aio_readdir playerdir $pl	1138	my $files = aio_readdir playerdir $pl
1073	or return;	1139	or return;
1074		1140
1075	my @paths;	1141	my @paths;
1076		1142
1077	for (@$files) {	1143	for (@$files) {
1078	utf8::decode $_;	1144	utf8::decode $_;
1079	next if /\.(?:pl|pst)$/;	1145	next if /\.(?:pl|pst)$/;
1080	next unless /^$PATH_SEP/o;	1146	next unless /^$PATH_SEP/o;
1081		1147
1082	push @paths, "~" . $pl->ob->name . "/" . $_;	1148	push @paths, cf::map::normalise "~$pl/$_";
1083	}	1149	}
1084		1150
1085	\@paths	1151	\@paths
1086	}	1152	}
1087		1153
1088	=item $player->ext_reply ($msgid, $msgtype, %msg)	1154	=item $player->ext_reply ($msgid, %msg)
1089		1155
1090	Sends an ext reply to the player.	1156	Sends an ext reply to the player.
1091		1157
1092	=cut	1158	=cut
1093		1159
1094	sub ext_reply($$$%) {	1160	sub ext_reply($$%) {
1095	my ($self, $id, %msg) = @_;	1161	my ($self, $id, %msg) = @_;
1096		1162
1097	$msg{msgid} = $id;	1163	$msg{msgid} = $id;
1098		1164
1099	$self->send ("ext " . cf::to_json \%msg);	1165	$self->send ("ext " . cf::to_json \%msg);
1100	}	1166	}
1101		1167
1102	package cf;	1168	=item $player->ext_event ($type, %msg)
		1169
		1170	Sends an ext event to the client.
		1171
		1172	=cut
		1173
		1174	sub ext_event($$%) {
		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	}
1103		1208
1104	=back	1209	=back
1105
1106		1210
1107	=head3 cf::map	1211	=head3 cf::map
1108		1212
1109	=over 4	1213	=over 4
1110		1214
…		…
1114		1218
1115	use Fcntl;	1219	use Fcntl;
1116	use Coro::AIO;	1220	use Coro::AIO;
1117		1221
1118	use overload	1222	use overload
1119	'""' => \&as_string;	1223	'""' => \&as_string,
		1224	fallback => 1;
1120		1225
1121	our $MAX_RESET = 3600;	1226	our $MAX_RESET = 3600;
1122	our $DEFAULT_RESET = 3000;	1227	our $DEFAULT_RESET = 3000;
1123		1228
1124	sub generate_random_map {	1229	sub generate_random_map {
1125	my ($self, $rmp) = @_;	1230	my ($self, $rmp) = @_;
1126
1127	# mit "rum" bekleckern, nicht	1231	# mit "rum" bekleckern, nicht
1128	$self->_create_random_map (	1232	$self->_create_random_map (
1129	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1130	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1131	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1138	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1242	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1139	(cf::region::find $rmp->{region}), $rmp->{custom}	1243	(cf::region::find $rmp->{region}), $rmp->{custom}
1140	)	1244	)
1141	}	1245	}
1142		1246
		1247	=item cf::map->register ($regex, $prio)
		1248
		1249	Register a handler for the map path matching the given regex at the
		1250	givne priority (higher is better, built-in handlers have priority 0, the
		1251	default).
		1252
		1253	=cut
		1254
1143	sub register {	1255	sub register {
1144	my (undef, $regex) = @_;	1256	my (undef, $regex, $prio) = @_;
1145	my $pkg = caller;	1257	my $pkg = caller;
1146		1258
1147	no strict;	1259	no strict;
1148	push @{"$pkg\::ISA"}, __PACKAGE__;	1260	push @{"$pkg\::ISA"}, __PACKAGE__;
1149		1261
1150	$EXT_MAP{$pkg} = qr<$regex>;	1262	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1151	}	1263	}
1152		1264
1153	# also paths starting with '/'	1265	# also paths starting with '/'
1154	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1266	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1267
		1268	sub thawer_merge {
		1269	my ($self, $merge) = @_;
		1270
		1271	# we have to keep some variables in memory intact
		1272	local $self->{path};
		1273	local $self->{load_path};
		1274	local $self->{deny_save};
		1275	local $self->{deny_reset};
		1276
		1277	$self->SUPER::thawer_merge ($merge);
		1278	}
1155		1279
1156	sub normalise {	1280	sub normalise {
1157	my ($path, $base) = @_;	1281	my ($path, $base) = @_;
		1282
		1283	$path = "$path"; # make sure its a string
		1284
		1285	$path =~ s/\.map$//;
1158		1286
1159	# map plan:	1287	# map plan:
1160	#	1288	#
1161	# /! non-realised random map exit (special hack!)	1289	# /! non-realised random map exit (special hack!)
1162	# {... are special paths that are not being touched	1290	# {... are special paths that are not being touched
…		…
1190		1318
1191	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1319	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1192		1320
1193	$path = normalise $path, $base;	1321	$path = normalise $path, $base;
1194		1322
1195	for my $pkg (keys %EXT_MAP) {	1323	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1196	if ($path =~ $EXT_MAP{$pkg}) {	1324	if ($path =~ $EXT_MAP{$pkg}[1]) {
1197	my $self = bless cf::map::new, $pkg;	1325	my $self = bless cf::map::new, $pkg;
1198	$self->{path} = $path; $self->path ($path);	1326	$self->{path} = $path; $self->path ($path);
1199	$self->init; # pass $1 etc.	1327	$self->init; # pass $1 etc.
1200	return $self;	1328	return $self;
1201	}	1329	}
1202	}	1330	}
1203		1331
1204	Carp::carp "unable to resolve path '$path'.";	1332	Carp::carp "unable to resolve path '$path' (base '$base').";
1205	()	1333	()
1206	}	1334	}
1207		1335
1208	sub init {	1336	sub init {
1209	my ($self) = @_;	1337	my ($self) = @_;
…		…
1220	# the displayed name, this is a one way mapping	1348	# the displayed name, this is a one way mapping
1221	sub visible_name {	1349	sub visible_name {
1222	&as_string	1350	&as_string
1223	}	1351	}
1224		1352
1225	# escape the /'s in the path
1226	sub _escaped_path {
1227	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1228
1229	$path
1230	}
1231
1232	# the original (read-only) location	1353	# the original (read-only) location
1233	sub load_path {	1354	sub load_path {
1234	my ($self) = @_;	1355	my ($self) = @_;
1235		1356
1236	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1357	"$MAPDIR/$self->{path}.map"
1237	}	1358	}
1238		1359
1239	# the temporary/swap location	1360	# the temporary/swap location
1240	sub save_path {	1361	sub save_path {
1241	my ($self) = @_;	1362	my ($self) = @_;
1242		1363
1243	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $self->_escaped_path	1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1365	"$TMPDIR/$path.map"
1244	}	1366	}
1245		1367
1246	# the unique path, undef == no special unique path	1368	# the unique path, undef == no special unique path
1247	sub uniq_path {	1369	sub uniq_path {
1248	my ($self) = @_;	1370	my ($self) = @_;
1249		1371
1250	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path	1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1373	"$UNIQUEDIR/$path"
1251	}	1374	}
1252		1375
1253	# and all this just because we cannot iterate over	1376	# and all this just because we cannot iterate over
1254	# all maps in C++...	1377	# all maps in C++...
1255	sub change_all_map_light {	1378	sub change_all_map_light {
…		…
1261		1384
1262	sub unlink_save {	1385	sub unlink_save {
1263	my ($self) = @_;	1386	my ($self) = @_;
1264		1387
1265	utf8::encode (my $save = $self->save_path);	1388	utf8::encode (my $save = $self->save_path);
1266	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1389	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1267	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1390	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1268	}	1391	}
1269		1392
1270	sub load_header_from($) {	1393	sub load_header_from($) {
1271	my ($self, $path) = @_;	1394	my ($self, $path) = @_;
1272		1395
1273	utf8::encode $path;	1396	utf8::encode $path;
1274	aio_open $path, O_RDONLY, 0	1397	#aio_open $path, O_RDONLY, 0
1275	or return;	1398	# or return;
1276		1399
1277	$self->_load_header ($path)	1400	$self->_load_header ($path)
1278	or return;	1401	or return;
1279		1402
1280	$self->{load_path} = $path;	1403	$self->{load_path} = $path;
1281		1404
1282	1	1405	1
1283	}	1406	}
1284		1407
1285	sub load_orig {	1408	sub load_header_orig {
1286	my ($self) = @_;	1409	my ($self) = @_;
1287		1410
1288	$self->load_header_from ($self->load_path)	1411	$self->load_header_from ($self->load_path)
1289	}	1412	}
1290		1413
1291	sub load_temp {	1414	sub load_header_temp {
1292	my ($self) = @_;	1415	my ($self) = @_;
1293		1416
1294	$self->load_header_from ($self->save_path)	1417	$self->load_header_from ($self->save_path)
		1418	}
		1419
		1420	sub prepare_temp {
		1421	my ($self) = @_;
		1422
		1423	$self->last_access ((delete $self->{last_access})
		1424	|| $cf::RUNTIME); #d#
		1425	# safety
		1426	$self->{instantiate_time} = $cf::RUNTIME
		1427	if $self->{instantiate_time} > $cf::RUNTIME;
		1428	}
		1429
		1430	sub prepare_orig {
		1431	my ($self) = @_;
		1432
		1433	$self->{load_original} = 1;
		1434	$self->{instantiate_time} = $cf::RUNTIME;
		1435	$self->last_access ($cf::RUNTIME);
		1436	$self->instantiate;
1295	}	1437	}
1296		1438
1297	sub load_header {	1439	sub load_header {
1298	my ($self) = @_;	1440	my ($self) = @_;
1299		1441
1300	if ($self->load_temp) {	1442	if ($self->load_header_temp) {
1301	$self->last_access ((delete $self->{last_access})	1443	$self->prepare_temp;
1302	|| $cf::RUNTIME); #d#
1303	# safety
1304	$self->{instantiate_time} = $cf::RUNTIME
1305	if $self->{instantiate_time} > $cf::RUNTIME;
1306	} else {	1444	} else {
1307	$self->load_orig	1445	$self->load_header_orig
1308	or return;	1446	or return;
1309		1447	$self->prepare_orig;
1310	$self->{load_original} = 1;
1311	$self->{instantiate_time} = $cf::RUNTIME;
1312	$self->last_access ($cf::RUNTIME);
1313	$self->instantiate;
1314	}	1448	}
		1449
		1450	$self->default_region (cf::region::find_by_path $self->{path})
		1451	unless $self->default_region;
1315		1452
1316	1	1453	1
1317	}	1454	}
1318		1455
1319	sub find;	1456	sub find;
…		…
1332	$map->{last_save} = $cf::RUNTIME;	1469	$map->{last_save} = $cf::RUNTIME;
1333		1470
1334	$map->load_header	1471	$map->load_header
1335	or return;	1472	or return;
1336		1473
1337	if ($map->should_reset) {	1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1475	# doing this can freeze the server in a sync job, obviously
		1476	#$cf::WAIT_FOR_TICK->wait;
1338	$map->reset;	1477	$map->reset;
1339	undef $guard;	1478	undef $guard;
1340	$map = find $path	1479	return find $path;
1341	or return;
1342	}	1480	}
1343		1481
1344	$cf::MAP{$path} = $map	1482	$cf::MAP{$path} = $map
1345	}	1483	}
1346	}	1484	}
		1485
		1486	sub pre_load { }
		1487	sub post_load { }
1347		1488
1348	sub load {	1489	sub load {
1349	my ($self) = @_;	1490	my ($self) = @_;
1350		1491
		1492	local $self->{deny_reset} = 1; # loading can take a long time
		1493
1351	my $path = $self->{path};	1494	my $path = $self->{path};
		1495
		1496	{
1352	my $guard = cf::lock_acquire "map_load:$path";	1497	my $guard = cf::lock_acquire "map_load:$path";
1353		1498
1354	return if $self->in_memory != cf::MAP_SWAPPED;	1499	return if $self->in_memory != cf::MAP_SWAPPED;
1355		1500
1356	$self->in_memory (cf::MAP_LOADING);	1501	$self->in_memory (cf::MAP_LOADING);
1357		1502
1358	$self->alloc;	1503	$self->alloc;
1359	$self->_load_objects ($self->{load_path}, 1)
1360	or return;
1361		1504
1362	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1505	$self->pre_load;
1363	if delete $self->{load_original};
1364
1365	if (my $uniq = $self->uniq_path) {
1366	utf8::encode $uniq;
1367	if (aio_open $uniq, O_RDONLY, 0) {
1368	$self->clear_unique_items;
1369	$self->_load_objects ($uniq, 0);
1370	}
1371	}
1372
1373	Coro::cede;
1374
1375	# now do the right thing for maps
1376	$self->link_multipart_objects;
1377
1378	unless ($self->{deny_activate}) {
1379	$self->decay_objects;
1380	$self->fix_auto_apply;
1381	$self->update_buttons;
1382	Coro::cede;	1506	Coro::cede;
1383	$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;
1384	$self->difficulty ($self->estimate_difficulty)	1525	$self->difficulty ($self->estimate_difficulty)
1385	unless $self->difficulty;	1526	unless $self->difficulty;
1386	Coro::cede;	1527	Coro::cede;
		1528
		1529	unless ($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;
1387	$self->activate;	1536	$self->activate;
1388	}	1537	}
1389		1538
1390	$self->in_memory (cf::MAP_IN_MEMORY);	1539	$self->in_memory (cf::MAP_IN_MEMORY);
		1540	}
		1541
		1542	$self->post_load;
1391	}	1543	}
1392		1544
1393	sub customise_for {	1545	sub customise_for {
1394	my ($self, $ob) = @_;	1546	my ($self, $ob) = @_;
1395		1547
…		…
1434		1586
1435	cf::sync_job { $map->load };	1587	cf::sync_job { $map->load };
1436	}	1588	}
1437		1589
1438	our %MAP_PREFETCH;	1590	our %MAP_PREFETCH;
1439	our $MAP_PREFETCHER = Coro::async {	1591	our $MAP_PREFETCHER = undef;
1440	while () {
1441	for my $path (keys %MAP_PREFETCH) {
1442	my $map = find $path
1443	or next;
1444	$map->load;
1445
1446	delete $MAP_PREFETCH{$path};
1447	}
1448	Coro::schedule;
1449	}
1450	};
1451		1592
1452	sub find_async {	1593	sub find_async {
1453	my ($path, $origin) = @_;	1594	my ($path, $origin) = @_;
1454		1595
1455	$path = normalise $path, $origin && $origin->{path};	1596	$path = normalise $path, $origin && $origin->{path};
1456		1597
1457	if (my $map = $cf::MAP{$path}) {	1598	if (my $map = $cf::MAP{$path}) {
1458	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1459	}	1600	}
1460		1601
1461	$MAP_PREFETCH{$path} = 0;	1602	undef $MAP_PREFETCH{$path};
		1603	$MAP_PREFETCHER ||= cf::async {
		1604	while (%MAP_PREFETCH) {
		1605	for my $path (keys %MAP_PREFETCH) {
		1606	my $map = find $path
		1607	or next;
		1608	$map->load;
		1609
		1610	delete $MAP_PREFETCH{$path};
		1611	}
		1612	}
		1613	undef $MAP_PREFETCHER;
		1614	};
1462	$MAP_PREFETCHER->ready;	1615	$MAP_PREFETCHER->prio (6);
1463		1616
1464	()	1617	()
1465	}	1618	}
1466		1619
1467	sub save {	1620	sub save {
…		…
1512		1665
1513	sub reset_at {	1666	sub reset_at {
1514	my ($self) = @_;	1667	my ($self) = @_;
1515		1668
1516	# TODO: safety, remove and allow resettable per-player maps	1669	# TODO: safety, remove and allow resettable per-player maps
1517	return 1e99 if $self->isa ("ext::map_per_player");	1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1518	return 1e99 if $self->{deny_reset};	1671	return 1e99 if $self->{deny_reset};
1519		1672
1520	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1521	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1522		1675
…		…
1527	my ($self) = @_;	1680	my ($self) = @_;
1528		1681
1529	$self->reset_at <= $cf::RUNTIME	1682	$self->reset_at <= $cf::RUNTIME
1530	}	1683	}
1531		1684
1532	sub rename {
1533	my ($self, $new_path) = @_;
1534
1535	normalise $new_path;
1536
1537	$self->unlink_save;
1538
1539	delete $cf::MAP{$self->path};
1540	$self->{path} = $new_path; $self->path ($self->{path});
1541	$cf::MAP{$self->path} = $self;
1542
1543	$self->save;
1544	}
1545
1546	sub reset {	1685	sub reset {
1547	my ($self) = @_;	1686	my ($self) = @_;
1548		1687
1549	my $lock = cf::lock_acquire "map_data:" . $self->path;	1688	my $lock = cf::lock_acquire "map_data:$self->{path}";
1550		1689
1551	return if $self->players;	1690	return if $self->players;
1552	return if $self->isa ("ext::map_per_player");#d#	1691	return if $self->isa ("ext::map_per_player");#d#
1553		1692
1554	warn "resetting map ", $self->path;#d#	1693	warn "resetting map ", $self->path;#d#
1555		1694
		1695	$self->in_memory (cf::MAP_SWAPPED);
		1696
		1697	# need to save uniques path
		1698	unless ($self->{deny_save}) {
		1699	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1700
		1701	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1702	if $uniq;
		1703	}
		1704
1556	delete $cf::MAP{$self->path};	1705	delete $cf::MAP{$self->path};
		1706
		1707	$self->clear;
1557		1708
1558	$_->clear_links_to ($self) for values %cf::MAP;	1709	$_->clear_links_to ($self) for values %cf::MAP;
1559		1710
1560	$self->unlink_save;	1711	$self->unlink_save;
1561	$self->destroy;	1712	$self->destroy;
…		…
1564	my $nuke_counter = "aaaa";	1715	my $nuke_counter = "aaaa";
1565		1716
1566	sub nuke {	1717	sub nuke {
1567	my ($self) = @_;	1718	my ($self) = @_;
1568		1719
		1720	delete $cf::MAP{$self->path};
		1721
		1722	$self->unlink_save;
		1723
		1724	bless $self, "cf::map";
		1725	delete $self->{deny_reset};
1569	$self->{deny_save} = 1;	1726	$self->{deny_save} = 1;
1570	$self->reset_timeout (1);	1727	$self->reset_timeout (1);
1571	$self->rename ("{nuke}/" . ($nuke_counter++));	1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1729
		1730	$cf::MAP{$self->path} = $self;
		1731
1572	$self->reset; # polite request, might not happen	1732	$self->reset; # polite request, might not happen
1573	}	1733	}
1574		1734
1575	=item cf::map::unique_maps	1735	=item cf::map::unique_maps
1576		1736
…		…
1578	instantiated unique items. May block.	1738	instantiated unique items. May block.
1579		1739
1580	=cut	1740	=cut
1581		1741
1582	sub unique_maps() {	1742	sub unique_maps() {
1583	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1743	my $files = aio_readdir $UNIQUEDIR
1584	or return;	1744	or return;
1585		1745
1586	my @paths;	1746	my @paths;
1587		1747
1588	for (@$files) {	1748	for (@$files) {
1589	utf8::decode $_;	1749	utf8::decode $_;
1590	next if /\.pst$/;	1750	next if /\.pst$/;
1591	next unless /^$PATH_SEP/o;	1751	next unless /^$PATH_SEP/o;
1592		1752
1593	push @paths, $_;	1753	push @paths, cf::map::normalise $_;
1594	}	1754	}
1595		1755
1596	\@paths	1756	\@paths
1597	}	1757	}
1598		1758
…		…
1692	=cut	1852	=cut
1693		1853
1694	sub link_map {	1854	sub link_map {
1695	unless ($LINK_MAP) {	1855	unless ($LINK_MAP) {
1696	$LINK_MAP = cf::map::find "{link}"	1856	$LINK_MAP = cf::map::find "{link}"
1697	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	1857	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1698	$LINK_MAP->load;	1858	$LINK_MAP->load;
1699	}	1859	}
1700		1860
1701	$LINK_MAP	1861	$LINK_MAP
1702	}	1862	}
…		…
1709	return if UNIVERSAL::isa $self->map, "ext::map_link";	1869	return if UNIVERSAL::isa $self->map, "ext::map_link";
1710		1870
1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1871	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1712	if $self->map;	1872	if $self->map;
1713		1873
1714	$self->enter_map ($LINK_MAP || link_map, 20, 20);	1874	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1715	}	1875	}
1716		1876
1717	sub cf::object::player::leave_link {	1877	sub cf::object::player::leave_link {
1718	my ($self, $map, $x, $y) = @_;	1878	my ($self, $map, $x, $y) = @_;
1719		1879
…		…
1741	$map->load;	1901	$map->load;
1742	$map->load_diag;	1902	$map->load_diag;
1743		1903
1744	return unless $self->contr->active;	1904	return unless $self->contr->active;
1745	$self->activate_recursive;	1905	$self->activate_recursive;
		1906
		1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1746	$self->enter_map ($map, $x, $y);	1908	$self->enter_map ($map, $x, $y);
1747	}	1909	}
1748		1910
1749	cf::player->attach (	1911	cf::player->attach (
1750	on_logout => sub {	1912	on_logout => sub {
…		…
1763	# try to abort aborted map switching on player login :)	1925	# try to abort aborted map switching on player login :)
1764	# should happen only on crashes	1926	# should happen only on crashes
1765	if ($pl->ob->{_link_pos}) {	1927	if ($pl->ob->{_link_pos}) {
1766	$pl->ob->enter_link;	1928	$pl->ob->enter_link;
1767	(async {	1929	(async {
1768	# we need this sleep as the login has a concurrent enter_exit running
1769	# and this sleep increases chances of the player not ending up in scorn
1770	$pl->ob->reply (undef,	1930	$pl->ob->reply (undef,
1771	"There was an internal problem at your last logout, "	1931	"There was an internal problem at your last logout, "
1772	. "the server will try to bring you to your intended destination in a second.",	1932	. "the server will try to bring you to your intended destination in a second.",
1773	cf::NDI_RED);	1933	cf::NDI_RED);
		1934	# we need this sleep as the login has a concurrent enter_exit running
		1935	# and this sleep increases chances of the player not ending up in scorn
1774	Coro::Timer::sleep 1;	1936	Coro::Timer::sleep 1;
1775	$pl->ob->leave_link;	1937	$pl->ob->leave_link;
1776	})->prio (2);	1938	})->prio (2);
1777	}	1939	}
1778	},	1940	},
…		…
1786	my ($self, $path, $x, $y) = @_;	1948	my ($self, $path, $x, $y) = @_;
1787		1949
1788	$self->enter_link;	1950	$self->enter_link;
1789		1951
1790	(async {	1952	(async {
		1953	my $map = eval {
1791	my $map = cf::map::find $path;	1954	my $map = cf::map::find $path;
1792	$map = $map->customise_for ($self) if $map;	1955	$map = $map->customise_for ($self) if $map;
1793		1956	$map
1794	# warn "entering ", $map->path, " at ($x, $y)\n"	1957	} or
1795	# if $map;
1796
1797	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1798		1959
1799	$self->leave_link ($map, $x, $y);	1960	$self->leave_link ($map, $x, $y);
1800	})->prio (1);	1961	})->prio (1);
1801	}	1962	}
1802		1963
…		…
1806		1967
1807	sub parse_random_map_params {	1968	sub parse_random_map_params {
1808	my ($spec) = @_;	1969	my ($spec) = @_;
1809		1970
1810	my $rmp = { # defaults	1971	my $rmp = { # defaults
1811	xsize => 10,	1972	xsize => (cf::rndm 15, 40),
1812	ysize => 10,	1973	ysize => (cf::rndm 15, 40),
		1974	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1975	#layout => string,
1813	};	1976	};
1814		1977
1815	for (split /\n/, $spec) {	1978	for (split /\n/, $spec) {
1816	my ($k, $v) = split /\s+/, $_, 2;	1979	my ($k, $v) = split /\s+/, $_, 2;
1817		1980
…		…
1821	$rmp	1984	$rmp
1822	}	1985	}
1823		1986
1824	sub prepare_random_map {	1987	sub prepare_random_map {
1825	my ($exit) = @_;	1988	my ($exit) = @_;
		1989
		1990	my $guard = cf::lock_acquire "exit_prepare:$exit";
1826		1991
1827	# all this does is basically replace the /! path by	1992	# all this does is basically replace the /! path by
1828	# a new random map path (?random/...) with a seed	1993	# a new random map path (?random/...) with a seed
1829	# that depends on the exit object	1994	# that depends on the exit object
1830		1995
1831	my $rmp = parse_random_map_params $exit->msg;	1996	my $rmp = parse_random_map_params $exit->msg;
1832		1997
1833	if ($exit->map) {	1998	if ($exit->map) {
1834	$rmp->{region} = $exit->map->region_name;	1999	$rmp->{region} = $exit->region->name;
1835	$rmp->{origin_map} = $exit->map->path;	2000	$rmp->{origin_map} = $exit->map->path;
1836	$rmp->{origin_x} = $exit->x;	2001	$rmp->{origin_x} = $exit->x;
1837	$rmp->{origin_y} = $exit->y;	2002	$rmp->{origin_y} = $exit->y;
1838	}	2003	}
1839		2004
1840	$rmp->{random_seed} ||= $exit->random_seed;	2005	$rmp->{random_seed} ||= $exit->random_seed;
1841		2006
1842	my $data = cf::to_json $rmp;	2007	my $data = cf::to_json $rmp;
1843	my $md5 = Digest::MD5::md5_hex $data;	2008	my $md5 = Digest::MD5::md5_hex $data;
		2009	my $meta = "$RANDOMDIR/$md5.meta";
1844		2010
1845	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2011	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1846	aio_write $fh, 0, (length $data), $data, 0;	2012	aio_write $fh, 0, (length $data), $data, 0;
		2013	undef $fh;
		2014	aio_rename "$meta~", $meta;
1847		2015
1848	$exit->slaying ("?random/$md5");	2016	$exit->slaying ("?random/$md5");
1849	$exit->msg (undef);	2017	$exit->msg (undef);
1850	}	2018	}
1851	}	2019	}
1852		2020
1853	sub cf::object::player::enter_exit {	2021	sub cf::object::player::enter_exit {
1854	my ($self, $exit) = @_;	2022	my ($self, $exit) = @_;
1855		2023
1856	return unless $self->type == cf::PLAYER;	2024	return unless $self->type == cf::PLAYER;
		2025
		2026	if ($exit->slaying eq "/!") {
		2027	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2028	# the problem is that $exit might not survive long enough
		2029	# so it needs to be done right now, right here
		2030	cf::sync_job { prepare_random_map $exit };
		2031	}
		2032
		2033	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2034	my $hp = $exit->stats->hp;
		2035	my $sp = $exit->stats->sp;
1857		2036
1858	$self->enter_link;	2037	$self->enter_link;
1859		2038
1860	(async {	2039	(async {
1861	$self->deactivate_recursive; # just to be sure	2040	$self->deactivate_recursive; # just to be sure
1862	unless (eval {	2041	unless (eval {
1863	prepare_random_map $exit	2042	$self->goto ($slaying, $hp, $sp);
1864	if $exit->slaying eq "/!";
1865
1866	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1867	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1868		2043
1869	1;	2044	1;
1870	}) {	2045	}) {
1871	$self->message ("Something went wrong deep within the crossfire server. "	2046	$self->message ("Something went wrong deep within the crossfire server. "
1872	. "I'll try to bring you back to the map you were before. "	2047	. "I'll try to bring you back to the map you were before. "
1873	. "Please report this to the dungeon master!",	2048	. "Please report this to the dungeon master!",
1874	cf::NDI_UNIQUE | cf::NDI_RED);	2049	cf::NDI_UNIQUE | cf::NDI_RED);
1875		2050
1876	warn "ERROR in enter_exit: $@";	2051	warn "ERROR in enter_exit: $@";
1877	$self->leave_link;	2052	$self->leave_link;
1878	}	2053	}
1879	})->prio (1);	2054	})->prio (1);
…		…
1892		2067
1893	sub cf::client::send_drawinfo {	2068	sub cf::client::send_drawinfo {
1894	my ($self, $text, $flags) = @_;	2069	my ($self, $text, $flags) = @_;
1895		2070
1896	utf8::encode $text;	2071	utf8::encode $text;
1897	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2072	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1898	}	2073	}
1899		2074
		2075	=item $client->ext_event ($type, %msg)
		2076
		2077	Sends an exti event to the client.
		2078
		2079	=cut
		2080
		2081	sub cf::client::ext_event($$%) {
		2082	my ($self, $type, %msg) = @_;
		2083
		2084	$msg{msgtype} = "event_$type";
		2085	$self->send_packet ("ext " . cf::to_json \%msg);
		2086	}
1900		2087
1901	=item $success = $client->query ($flags, "text", \&cb)	2088	=item $success = $client->query ($flags, "text", \&cb)
1902		2089
1903	Queues a query to the client, calling the given callback with	2090	Queues a query to the client, calling the given callback with
1904	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2091	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1933	# get handled first	2120	# get handled first
1934	my $queue = delete $ns->{query_queue}	2121	my $queue = delete $ns->{query_queue}
1935	or return; # be conservative, not sure how that can happen, but we saw a crash here	2122	or return; # be conservative, not sure how that can happen, but we saw a crash here
1936		2123
1937	(shift @$queue)->[1]->($msg);	2124	(shift @$queue)->[1]->($msg);
		2125	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1938		2126
1939	push @{ $ns->{query_queue} }, @$queue;	2127	push @{ $ns->{query_queue} }, @$queue;
1940		2128
1941	if (@{ $ns->{query_queue} } == @$queue) {	2129	if (@{ $ns->{query_queue} } == @$queue) {
1942	if (@$queue) {	2130	if (@$queue) {
…		…
2000		2188
2001	# here we export the classes and methods available to script code	2189	# here we export the classes and methods available to script code
2002		2190
2003	=pod	2191	=pod
2004		2192
2005	The following fucntions and emthods are available within a safe environment:	2193	The following functions and methods are available within a safe environment:
2006		2194
2007	cf::object contr pay_amount pay_player map	2195	cf::object contr pay_amount pay_player map
2008	cf::object::player player	2196	cf::object::player player
2009	cf::player peaceful	2197	cf::player peaceful
2010	cf::map trigger	2198	cf::map trigger
…		…
2095	#############################################################################	2283	#############################################################################
2096		2284
2097	=head2 EXTENSION DATABASE SUPPORT	2285	=head2 EXTENSION DATABASE SUPPORT
2098		2286
2099	Crossfire maintains a very simple database for extension use. It can	2287	Crossfire maintains a very simple database for extension use. It can
2100	currently store anything that can be serialised using Storable, which	2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2101	excludes objects.	2289	convert to/from binary).
2102		2290
2103	The parameter C<$family> should best start with the name of the extension	2291	The parameter C<$family> should best start with the name of the extension
2104	using it, it should be unique.	2292	using it, it should be unique.
2105		2293
2106	=over 4	2294	=over 4
2107		2295
2108	=item $hashref = cf::db_get $family
2109
2110	Return a hashref for use by the extension C<$family>, which can be
2111	modified. After modifications, you have to call C<cf::db_dirty> or
2112	C<cf::db_sync>.
2113
2114	=item $value = cf::db_get $family => $key	2296	=item $value = cf::db_get $family => $key
2115		2297
2116	Returns a single value from the database	2298	Returns a single value from the database.
2117
2118	=item cf::db_put $family => $hashref
2119
2120	Stores the given family hashref into the database. Updates are delayed, if
2121	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2122		2299
2123	=item cf::db_put $family => $key => $value	2300	=item cf::db_put $family => $key => $value
2124		2301
2125	Stores the given C<$value> in the family hash. Updates are delayed, if you	2302	Stores the given C<$value> in the family.
2126	want the data to be synced to disk immediately, use C<cf::db_sync>.
2127
2128	=item cf::db_dirty
2129
2130	Marks the database as dirty, to be updated at a later time.
2131
2132	=item cf::db_sync
2133
2134	Immediately write the database to disk I<if it is dirty>.
2135		2303
2136	=cut	2304	=cut
2137		2305
2138	our $DB;	2306	our $DB;
2139		2307
2140	{	2308	sub db_init {
2141	my $path = cf::localdir . "/database.pst";	2309	unless ($DB) {
		2310	$DB = BDB::db_create $DB_ENV;
2142		2311
2143	sub db_load() {	2312	cf::sync_job {
2144	$DB = stat $path ? Storable::retrieve $path : { };	2313	eval {
2145	}	2314	$DB->set_flags (BDB::CHKSUM);
2146		2315
2147	my $pid;	2316	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2148		2317	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2149	sub db_save() {	2318	cf::cleanup "db_open(db): $!" if $!;
2150	waitpid $pid, 0 if $pid;	2319	};
2151	if (0 == ($pid = fork)) {	2320	cf::cleanup "db_open(db): $@" if $@;
2152	$DB->{_meta}{version} = 1;
2153	Storable::nstore $DB, "$path~";
2154	rename "$path~", $path;
2155	cf::_exit 0 if defined $pid;
2156	}	2321	};
2157	}
2158
2159	my $dirty;
2160
2161	sub db_sync() {
2162	db_save if $dirty;
2163	undef $dirty;
2164	}
2165
2166	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2167	db_sync;
2168	});	2322	}
		2323	}
2169		2324
2170	sub db_dirty() {
2171	$dirty = 1;
2172	$idle->start;
2173	}
2174
2175	sub db_get($;$) {	2325	sub db_get($$) {
2176	@_ >= 2	2326	my $key = "$_[0]/$_[1]";
2177	? $DB->{$_[0]}{$_[1]}
2178	: ($DB->{$_[0]} ||= { })
2179	}
2180		2327
		2328	cf::sync_job {
		2329	BDB::db_get $DB, undef, $key, my $data;
		2330
		2331	$! ? ()
		2332	: $data
		2333	}
		2334	}
		2335
2181	sub db_put($$;$) {	2336	sub db_put($$$) {
2182	if (@_ >= 3) {	2337	BDB::dbreq_pri 4;
2183	$DB->{$_[0]}{$_[1]} = $_[2];	2338	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2184	} else {	2339	}
2185	$DB->{$_[0]} = $_[1];
2186	}
2187	db_dirty;
2188	}
2189		2340
2190	cf::global->attach (	2341	=item cf::cache $id => [$paths...], $processversion => $process
2191	prio => 10000,	2342
2192	on_cleanup => sub {	2343	Generic caching function that returns the value of the resource $id,
2193	db_sync;	2344	caching and regenerating as required.
		2345
		2346	This function can block.
		2347
		2348	=cut
		2349
		2350	sub cache {
		2351	my ($id, $src, $processversion, $process) = @_;
		2352
		2353	my $meta =
		2354	join "\x00",
		2355	$processversion,
		2356	map {
		2357	aio_stat $_
		2358	and Carp::croak "$_: $!";
		2359
		2360	($_, (stat _)[7,9])
		2361	} @$src;
		2362
		2363	my $dbmeta = db_get cache => "$id/meta";
		2364	if ($dbmeta ne $meta) {
		2365	# changed, we may need to process
		2366
		2367	my @data;
		2368	my $md5;
		2369
		2370	for (0 .. $#$src) {
		2371	0 <= aio_load $src->[$_], $data[$_]
		2372	or Carp::croak "$src->[$_]: $!";
2194	},	2373	}
2195	);	2374
		2375	# if processing is expensive, check
		2376	# checksum first
		2377	if (1) {
		2378	$md5 =
		2379	join "\x00",
		2380	$processversion,
		2381	map {
		2382	Coro::cede;
		2383	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2384	} 0.. $#$src;
		2385
		2386
		2387	my $dbmd5 = db_get cache => "$id/md5";
		2388	if ($dbmd5 eq $md5) {
		2389	db_put cache => "$id/meta", $meta;
		2390
		2391	return db_get cache => "$id/data";
		2392	}
		2393	}
		2394
		2395	my $t1 = Time::HiRes::time;
		2396	my $data = $process->(\@data);
		2397	my $t2 = Time::HiRes::time;
		2398
		2399	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2400
		2401	db_put cache => "$id/data", $data;
		2402	db_put cache => "$id/md5" , $md5;
		2403	db_put cache => "$id/meta", $meta;
		2404
		2405	return $data;
		2406	}
		2407
		2408	db_get cache => "$id/data"
2196	}	2409	}
		2410
		2411	=item fork_call { }, $args
		2412
		2413	Executes the given code block with the given arguments in a seperate
		2414	process, returning the results. Everything must be serialisable with
		2415	Coro::Storable. May, of course, block. Note that the executed sub may
		2416	never block itself or use any form of Event handling.
		2417
		2418	=cut
		2419
		2420	sub fork_call(&@) {
		2421	my ($cb, @args) = @_;
		2422
		2423	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2424	# or die "socketpair: $!";
		2425	pipe my $fh1, my $fh2
		2426	or die "pipe: $!";
		2427
		2428	if (my $pid = fork) {
		2429	close $fh2;
		2430
		2431	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2432	$res = Coro::Storable::thaw $res;
		2433
		2434	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2435
		2436	die $$res unless "ARRAY" eq ref $res;
		2437
		2438	return wantarray ? @$res : $res->[-1];
		2439	} else {
		2440	reset_signals;
		2441	local $SIG{__WARN__};
		2442	local $SIG{__DIE__};
		2443	eval {
		2444	close $fh1;
		2445
		2446	my @res = eval { $cb->(@args) };
		2447	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2448	};
		2449
		2450	warn $@ if $@;
		2451	_exit 0;
		2452	}
		2453	}
		2454
		2455
2197		2456
2198	#############################################################################	2457	#############################################################################
2199	# the server's main()	2458	# the server's init and main functions
		2459
		2460	sub load_facedata($) {
		2461	my ($path) = @_;
		2462
		2463	warn "loading facedata from $path\n";
		2464
		2465	my $facedata;
		2466	0 < aio_load $path, $facedata
		2467	or die "$path: $!";
		2468
		2469	$facedata = Coro::Storable::thaw $facedata;
		2470
		2471	$facedata->{version} == 2
		2472	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2473
		2474	{
		2475	my $faces = $facedata->{faceinfo};
		2476
		2477	while (my ($face, $info) = each %$faces) {
		2478	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2479	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2480	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2481	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2482	Coro::cede;
		2483	}
		2484
		2485	while (my ($face, $info) = each %$faces) {
		2486	next unless $info->{smooth};
		2487	my $idx = cf::face::find $face
		2488	or next;
		2489	if (my $smooth = cf::face::find $info->{smooth}) {
		2490	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2491	} else {
		2492	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2493	}
		2494	Coro::cede;
		2495	}
		2496	}
		2497
		2498	{
		2499	my $anims = $facedata->{animinfo};
		2500
		2501	while (my ($anim, $info) = each %$anims) {
		2502	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2503	Coro::cede;
		2504	}
		2505
		2506	cf::anim::invalidate_all; # d'oh
		2507	}
		2508
		2509	1
		2510	}
		2511
		2512	sub reload_regions {
		2513	load_resource_file "$MAPDIR/regions"
		2514	or die "unable to load regions file\n";
		2515	}
		2516
		2517	sub reload_facedata {
		2518	load_facedata "$DATADIR/facedata"
		2519	or die "unable to load facedata\n";
		2520	}
		2521
		2522	sub reload_archetypes {
		2523	load_resource_file "$DATADIR/archetypes"
		2524	or die "unable to load archetypes\n";
		2525	}
		2526
		2527	sub reload_treasures {
		2528	load_resource_file "$DATADIR/treasures"
		2529	or die "unable to load treasurelists\n";
		2530	}
		2531
		2532	sub reload_resources {
		2533	warn "reloading resource files...\n";
		2534
		2535	reload_regions;
		2536	reload_facedata;
		2537	reload_archetypes;
		2538	reload_treasures;
		2539
		2540	warn "finished reloading resource files\n";
		2541	}
		2542
		2543	sub init {
		2544	reload_resources;
		2545	}
2200		2546
2201	sub cfg_load {	2547	sub cfg_load {
2202	open my $fh, "<:utf8", cf::confdir . "/config"	2548	open my $fh, "<:utf8", "$CONFDIR/config"
2203	or return;	2549	or return;
2204		2550
2205	local $/;	2551	local $/;
2206	*CFG = YAML::Syck::Load <$fh>;	2552	*CFG = YAML::Syck::Load <$fh>;
2207		2553
…		…
2221		2567
2222	sub main {	2568	sub main {
2223	# we must not ever block the main coroutine	2569	# we must not ever block the main coroutine
2224	local $Coro::idle = sub {	2570	local $Coro::idle = sub {
2225	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2571	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2572	(async {
2226	async { Event::one_event };	2573	Event::one_event;
		2574	})->prio (Coro::PRIO_MAX);
2227	};	2575	};
2228		2576
2229	cfg_load;	2577	cfg_load;
2230	db_load;	2578	db_init;
2231	load_extensions;	2579	load_extensions;
		2580
		2581	$TICK_WATCHER->start;
2232	Event::loop;	2582	Event::loop;
2233	}	2583	}
2234		2584
2235	#############################################################################	2585	#############################################################################
2236	# initialisation and cleanup	2586	# initialisation and cleanup
2237		2587
2238	# install some emergency cleanup handlers	2588	# install some emergency cleanup handlers
2239	BEGIN {	2589	BEGIN {
2240	for my $signal (qw(INT HUP TERM)) {	2590	for my $signal (qw(INT HUP TERM)) {
2241	Event->signal (	2591	Event->signal (
		2592	reentrant => 0,
2242	data => WF_AUTOCANCEL,	2593	data => WF_AUTOCANCEL,
2243	signal => $signal,	2594	signal => $signal,
		2595	prio => 0,
2244	cb => sub {	2596	cb => sub {
2245	cf::cleanup "SIG$signal";	2597	cf::cleanup "SIG$signal";
2246	},	2598	},
2247	);	2599	);
2248	}	2600	}
2249	}	2601	}
…		…
2254	warn "enter emergency perl save\n";	2606	warn "enter emergency perl save\n";
2255		2607
2256	cf::sync_job {	2608	cf::sync_job {
2257	# use a peculiar iteration method to avoid tripping on perl	2609	# use a peculiar iteration method to avoid tripping on perl
2258	# refcount bugs in for. also avoids problems with players	2610	# refcount bugs in for. also avoids problems with players
2259	# and maps saved/Destroyed asynchronously.	2611	# and maps saved/destroyed asynchronously.
2260	warn "begin emergency player save\n";	2612	warn "begin emergency player save\n";
2261	for my $login (keys %cf::PLAYER) {	2613	for my $login (keys %cf::PLAYER) {
2262	my $pl = $cf::PLAYER{$login} or next;	2614	my $pl = $cf::PLAYER{$login} or next;
2263	$pl->valid or next;	2615	$pl->valid or next;
2264	$pl->save;	2616	$pl->save;
…		…
2270	my $map = $cf::MAP{$path} or next;	2622	my $map = $cf::MAP{$path} or next;
2271	$map->valid or next;	2623	$map->valid or next;
2272	$map->save;	2624	$map->save;
2273	}	2625	}
2274	warn "end emergency map save\n";	2626	warn "end emergency map save\n";
		2627
		2628	warn "begin emergency database checkpoint\n";
		2629	BDB::db_env_txn_checkpoint $DB_ENV;
		2630	warn "end emergency database checkpoint\n";
2275	};	2631	};
2276		2632
2277	warn "leave emergency perl save\n";	2633	warn "leave emergency perl save\n";
2278	}	2634	}
2279		2635
		2636	sub post_cleanup {
		2637	my ($make_core) = @_;
		2638
		2639	warn Carp::longmess "post_cleanup backtrace"
		2640	if $make_core;
		2641	}
		2642
2280	sub reload() {	2643	sub do_reload_perl() {
2281	# can/must only be called in main	2644	# can/must only be called in main
2282	if ($Coro::current != $Coro::main) {	2645	if ($Coro::current != $Coro::main) {
2283	warn "can only reload from main coroutine\n";	2646	warn "can only reload from main coroutine";
2284	return;	2647	return;
2285	}	2648	}
2286		2649
2287	warn "reloading...";	2650	warn "reloading...";
2288		2651
2289	warn "freezing server";	2652	warn "entering sync_job";
2290	my $guard = freeze_mainloop;	2653
		2654	cf::sync_job {
		2655	cf::write_runtime; # external watchdog should not bark
2291	cf::emergency_save;	2656	cf::emergency_save;
		2657	cf::write_runtime; # external watchdog should not bark
2292		2658
2293	warn "sync database to disk";	2659	warn "syncing database to disk";
2294	cf::db_sync;	2660	BDB::db_env_txn_checkpoint $DB_ENV;
2295	IO::AIO::flush;
2296		2661
2297	eval {
2298	# if anything goes wrong in here, we should simply crash as we already saved	2662	# if anything goes wrong in here, we should simply crash as we already saved
2299		2663
2300	warn "cancel all watchers";	2664	warn "cancelling all WF_AUTOCANCEL watchers";
2301	for (Event::all_watchers) {	2665	for (Event::all_watchers) {
2302	$_->cancel if $_->data & WF_AUTOCANCEL;	2666	$_->cancel if $_->data & WF_AUTOCANCEL;
2303	}	2667	}
2304		2668
		2669	warn "flushing outstanding aio requests";
		2670	for (;;) {
		2671	BDB::flush;
		2672	IO::AIO::flush;
		2673	Coro::cede;
		2674	last unless IO::AIO::nreqs || BDB::nreqs;
		2675	warn "iterate...";
		2676	}
		2677
		2678	++$RELOAD;
		2679
2305	warn "cancel all extension coros";	2680	warn "cancelling all extension coros";
2306	$_->cancel for values %EXT_CORO;	2681	$_->cancel for values %EXT_CORO;
2307	%EXT_CORO = ();	2682	%EXT_CORO = ();
2308		2683
2309	warn "remove commands";	2684	warn "removing commands";
2310	%COMMAND = ();	2685	%COMMAND = ();
2311		2686
2312	warn "remove ext commands";	2687	warn "removing ext commands";
2313	%EXTCMD = ();	2688	%EXTCMD = ();
2314		2689
2315	warn "unload/nuke all extensions";	2690	warn "unloading/nuking all extensions";
2316	for my $pkg (@EXTS) {	2691	for my $pkg (@EXTS) {
2317	warn "... unloading $pkg";	2692	warn "... unloading $pkg";
2318		2693
2319	if (my $cb = $pkg->can ("unload")) {	2694	if (my $cb = $pkg->can ("unload")) {
2320	eval {	2695	eval {
…		…
2325		2700
2326	warn "... nuking $pkg";	2701	warn "... nuking $pkg";
2327	Symbol::delete_package $pkg;	2702	Symbol::delete_package $pkg;
2328	}	2703	}
2329		2704
2330	warn "unload all perl modules loaded from $LIBDIR";	2705	warn "unloading all perl modules loaded from $LIBDIR";
2331	while (my ($k, $v) = each %INC) {	2706	while (my ($k, $v) = each %INC) {
2332	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2707	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2333		2708
2334	warn "removing <$k>";	2709	warn "... unloading $k";
2335	delete $INC{$k};	2710	delete $INC{$k};
2336		2711
2337	$k =~ s/\.pm$//;	2712	$k =~ s/\.pm$//;
2338	$k =~ s/\//::/g;	2713	$k =~ s/\//::/g;
2339		2714
…		…
2342	}	2717	}
2343		2718
2344	Symbol::delete_package $k;	2719	Symbol::delete_package $k;
2345	}	2720	}
2346		2721
2347	warn "get rid of safe::, as good as possible";	2722	warn "getting rid of safe::, as good as possible";
2348	Symbol::delete_package "safe::$_"	2723	Symbol::delete_package "safe::$_"
2349	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2724	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2350		2725
2351	warn "unload cf.pm \"a bit\"";	2726	warn "unloading cf.pm \"a bit\"";
2352	delete $INC{"cf.pm"};	2727	delete $INC{"cf.pm"};
		2728	delete $INC{"cf/pod.pm"};
2353		2729
2354	# don't, removes xs symbols, too,	2730	# don't, removes xs symbols, too,
2355	# and global variables created in xs	2731	# and global variables created in xs
2356	#Symbol::delete_package __PACKAGE__;	2732	#Symbol::delete_package __PACKAGE__;
2357		2733
		2734	warn "unload completed, starting to reload now";
		2735
2358	warn "reloading cf.pm";	2736	warn "reloading cf.pm";
2359	require cf;	2737	require cf;
2360	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2738	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2361		2739
2362	warn "load config and database again";	2740	warn "loading config and database again";
2363	cf::cfg_load;	2741	cf::cfg_load;
2364	cf::db_load;
2365		2742
2366	warn "load extensions";	2743	warn "loading extensions";
2367	cf::load_extensions;	2744	cf::load_extensions;
2368		2745
2369	warn "reattach attachments to objects/players";	2746	warn "reattaching attachments to objects/players";
2370	_global_reattach;	2747	_global_reattach; # objects, sockets
2371	warn "reattach attachments to maps";	2748	warn "reattaching attachments to maps";
2372	reattach $_ for values %MAP;	2749	reattach $_ for values %MAP;
2373	};	2750	warn "reattaching attachments to players";
		2751	reattach $_ for values %PLAYER;
2374		2752
2375	if ($@) {	2753	warn "leaving sync_job";
		2754
		2755	1
		2756	} or do {
2376	warn $@;	2757	warn $@;
2377	warn "error while reloading, exiting.";	2758	warn "error while reloading, exiting.";
2378	exit 1;	2759	exit 1;
2379	}	2760	};
2380		2761
2381	warn "reloaded";	2762	warn "reloaded";
2382	};	2763	};
2383		2764
		2765	our $RELOAD_WATCHER; # used only during reload
		2766
		2767	sub reload_perl() {
		2768	# doing reload synchronously and two reloads happen back-to-back,
		2769	# coro crashes during coro_state_free->destroy here.
		2770
		2771	$RELOAD_WATCHER ||= Event->timer (
		2772	reentrant => 0,
		2773	after => 0,
		2774	data => WF_AUTOCANCEL,
		2775	cb => sub {
		2776	do_reload_perl;
		2777	undef $RELOAD_WATCHER;
		2778	},
		2779	);
		2780	}
		2781
2384	register_command "reload" => sub {	2782	register_command "reload" => sub {
2385	my ($who, $arg) = @_;	2783	my ($who, $arg) = @_;
2386		2784
2387	if ($who->flag (FLAG_WIZ)) {	2785	if ($who->flag (FLAG_WIZ)) {
2388	$who->message ("start of reload.");
2389	reload;
2390	$who->message ("end of reload.");	2786	$who->message ("reloading server.");
		2787	async { reload_perl };
2391	}	2788	}
2392	};	2789	};
2393		2790
2394	unshift @INC, $LIBDIR;	2791	unshift @INC, $LIBDIR;
		2792
		2793	my $bug_warning = 0;
		2794
		2795	our @WAIT_FOR_TICK;
		2796	our @WAIT_FOR_TICK_BEGIN;
		2797
		2798	sub wait_for_tick {
		2799	return unless $TICK_WATCHER->is_active;
		2800	return if $Coro::current == $Coro::main;
		2801
		2802	my $signal = new Coro::Signal;
		2803	push @WAIT_FOR_TICK, $signal;
		2804	$signal->wait;
		2805	}
		2806
		2807	sub wait_for_tick_begin {
		2808	return unless $TICK_WATCHER->is_active;
		2809	return if $Coro::current == $Coro::main;
		2810
		2811	my $signal = new Coro::Signal;
		2812	push @WAIT_FOR_TICK_BEGIN, $signal;
		2813	$signal->wait;
		2814	}
2395		2815
2396	$TICK_WATCHER = Event->timer (	2816	$TICK_WATCHER = Event->timer (
2397	reentrant => 0,	2817	reentrant => 0,
		2818	parked => 1,
2398	prio => 0,	2819	prio => 0,
2399	at => $NEXT_TICK || $TICK,	2820	at => $NEXT_TICK || $TICK,
2400	data => WF_AUTOCANCEL,	2821	data => WF_AUTOCANCEL,
2401	cb => sub {	2822	cb => sub {
		2823	if ($Coro::current != $Coro::main) {
		2824	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2825	unless ++$bug_warning > 10;
		2826	return;
		2827	}
		2828
2402	$NOW = Event::time;	2829	$NOW = Event::time;
2403		2830
2404	cf::server_tick; # one server iteration	2831	cf::server_tick; # one server iteration
		2832
2405	$RUNTIME += $TICK;	2833	$RUNTIME += $TICK;
2406	$NEXT_TICK += $TICK;	2834	$NEXT_TICK += $TICK;
2407		2835
2408	$WAIT_FOR_TICK->broadcast;	2836	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2409	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2837	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2838	Coro::async_pool {
		2839	write_runtime
		2840	or warn "ERROR: unable to write runtime file: $!";
		2841	};
		2842	}
		2843
		2844	# my $AFTER = Event::time;
		2845	# warn $AFTER - $NOW;#d#
2410		2846
2411	# if we are delayed by four ticks or more, skip them all	2847	# if we are delayed by four ticks or more, skip them all
2412	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2848	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2413		2849
2414	$TICK_WATCHER->at ($NEXT_TICK);	2850	$TICK_WATCHER->at ($NEXT_TICK);
2415	$TICK_WATCHER->start;	2851	$TICK_WATCHER->start;
		2852
		2853	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2854	$sig->send;
		2855	}
		2856	while (my $sig = shift @WAIT_FOR_TICK) {
		2857	$sig->send;
		2858	}
		2859
		2860	_post_tick;
2416	},	2861	},
2417	);	2862	);
2418		2863
		2864	{
2419	IO::AIO::max_poll_time $TICK * 0.2;	2865	BDB::max_poll_time $TICK * 0.1;
2420		2866	$BDB_POLL_WATCHER = Event->io (
2421	Event->io (	2867	reentrant => 0,
2422	fd => IO::AIO::poll_fileno,	2868	fd => BDB::poll_fileno,
2423	poll => 'r',	2869	poll => 'r',
2424	prio => 5,	2870	prio => 0,
2425	data => WF_AUTOCANCEL,
2426	cb => \&IO::AIO::poll_cb,
2427	);
2428
2429	Event->timer (
2430	data => WF_AUTOCANCEL,	2871	data => WF_AUTOCANCEL,
2431	after => 0,	2872	cb => \&BDB::poll_cb,
2432	interval => 10,	2873	);
2433	cb => sub {	2874	BDB::min_parallel 8;
2434	(Coro::unblock_sub {	2875
2435	write_runtime	2876	BDB::set_sync_prepare {
2436	or warn "ERROR: unable to write runtime file: $!";	2877	my $status;
		2878	my $current = $Coro::current;
		2879	(
		2880	sub {
		2881	$status = $!;
		2882	$current->ready; undef $current;
		2883	},
		2884	sub {
		2885	Coro::schedule while defined $current;
		2886	$! = $status;
		2887	},
		2888	)
		2889	};
		2890
		2891	unless ($DB_ENV) {
		2892	$DB_ENV = BDB::db_env_create;
		2893
		2894	cf::sync_job {
		2895	eval {
		2896	BDB::db_env_open
		2897	$DB_ENV,
		2898	$BDBDIR,
		2899	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2900	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2901	0666;
		2902
		2903	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2904
		2905	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2906	$DB_ENV->set_lk_detect;
		2907	};
		2908
		2909	cf::cleanup "db_env_open(db): $@" if $@;
2437	})->();	2910	};
2438	},	2911	}
2439	);	2912	}
		2913
		2914	{
		2915	IO::AIO::min_parallel 8;
		2916
		2917	undef $Coro::AIO::WATCHER;
		2918	IO::AIO::max_poll_time $TICK * 0.1;
		2919	$AIO_POLL_WATCHER = Event->io (
		2920	reentrant => 0,
		2921	data => WF_AUTOCANCEL,
		2922	fd => IO::AIO::poll_fileno,
		2923	poll => 'r',
		2924	prio => 6,
		2925	cb => \&IO::AIO::poll_cb,
		2926	);
		2927	}
		2928
		2929	my $_log_backtrace;
		2930
		2931	sub _log_backtrace {
		2932	my ($msg, @addr) = @_;
		2933
		2934	$msg =~ s/\n//;
		2935
		2936	# limit the # of concurrent backtraces
		2937	if ($_log_backtrace < 2) {
		2938	++$_log_backtrace;
		2939	async {
		2940	my @bt = fork_call {
		2941	@addr = map { sprintf "%x", $_ } @addr;
		2942	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2943	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2944	or die "addr2line: $!";
		2945
		2946	my @funcs;
		2947	my @res = <$fh>;
		2948	chomp for @res;
		2949	while (@res) {
		2950	my ($func, $line) = splice @res, 0, 2, ();
		2951	push @funcs, "[$func] $line";
		2952	}
		2953
		2954	@funcs
		2955	};
		2956
		2957	LOG llevInfo, "[ABT] $msg\n";
		2958	LOG llevInfo, "[ABT] $_\n" for @bt;
		2959	--$_log_backtrace;
		2960	};
		2961	} else {
		2962	LOG llevInfo, "[ABT] $msg\n";
		2963	LOG llevInfo, "[ABT] [suppressed]\n";
		2964	}
		2965	}
		2966
		2967	# load additional modules
		2968	use cf::pod;
2440		2969
2441	END { cf::emergency_save }	2970	END { cf::emergency_save }
2442		2971
2443	1	2972	1
2444		2973

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