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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.200 by root, Mon Jan 29 17:57:22 2007 UTC vs.
Revision 1.282 by elmex, Tue Jun 19 18:15:34 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
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
		98
70	binmode STDOUT;	99	binmode STDOUT;
71	binmode STDERR;	100	binmode STDERR;
72		101
73	# read virtual server time, if available	102	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
78	}	107	}
79		108
80	mkdir cf::localdir;	109	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		111
86	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
87		113
88	sub cf::map::normalise;	114	sub cf::map::normalise;
89		115
…		…
100	=item $cf::RUNTIME	126	=item $cf::RUNTIME
101		127
102	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
103	every server tick.	129	every server tick.
104		130
105	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
106		134
107	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
108	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
109		139
110	=item $cf::NOW	140	=item $cf::NOW
111		141
112	The time of the last (current) server tick.	142	The time of the last (current) server tick.
113		143
114	=item $cf::TICK	144	=item $cf::TICK
115		145
116	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
117		157
118	=item %cf::CFG	158	=item %cf::CFG
119		159
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
121	from wherever your confdir points to.	161	from wherever your confdir points to.
122		162
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		164
125	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
126	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	166	returns directly I<after> the tick processing (and consequently, can only wake one process
127	processing has been done. Call C<< ->wait >> on them to maximise the	167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
128	window of cpu time available, or simply to synchronise to the server tick.
129		168
130	=back	169	=back
131		170
132	=cut	171	=cut
133		172
134	BEGIN {	173	BEGIN {
135	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
136	my $msg = join "", @_;	175	my $msg = join "", @_;
137	utf8::encode $msg;
138		176
139	$msg .= "\n"	177	$msg .= "\n"
140	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
141		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
142	LOG llevError, $msg;	183	LOG llevError, $msg;
143	};	184	};
144	}	185	}
145		186
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
148	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
149	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
150	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
151	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
152		194
153	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
154	# within the Safe compartment.	196	# within the Safe compartment.
155	for my $pkg (qw(	197	for my $pkg (qw(
156	cf::global cf::attachable	198	cf::global cf::attachable
…		…
164	}	206	}
165		207
166	$Event::DIED = sub {	208	$Event::DIED = sub {
167	warn "error in event callback: @_";	209	warn "error in event callback: @_";
168	};	210	};
		211
		212	#############################################################################
169		213
170	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
171		215
172	=over 4	216	=over 4
173		217
…		…
192	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	236	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
193	$d	237	$d
194	} || "[unable to dump $_[0]: '$@']";	238	} || "[unable to dump $_[0]: '$@']";
195	}	239	}
196		240
197	use JSON::Syck (); # TODO# replace by JSON::PC once working	241	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
198		242
199	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
200		244
201	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
202		246
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
211		248
212	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
213
214	=cut
215
216	sub to_json($) {
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
218	JSON::Syck::Dump $_[0]
219	}
220		250
221	=item cf::lock_wait $string	251	=item cf::lock_wait $string
222		252
223	Wait until the given lock is available. See cf::lock_acquire.	253	Wait until the given lock is available. See cf::lock_acquire.
224		254
…		…
230	returned.	260	returned.
231		261
232	Lock names should begin with a unique identifier (for example, cf::map::find	262	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	263	uses map_find and cf::map::load uses map_load).
234		264
		265	=item $locked = cf::lock_active $string
		266
		267	Return true if the lock is currently active, i.e. somebody has locked it.
		268
235	=cut	269	=cut
236		270
237	our %LOCK;	271	our %LOCK;
238		272
239	sub lock_wait($) {	273	sub lock_wait($) {
…		…
258	# wake up all waiters, to be on the safe side	292	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	293	$_->ready for @{ delete $LOCK{$key} };
260	}	294	}
261	}	295	}
262		296
		297	sub lock_active($) {
		298	my ($key) = @_;
		299
		300	! ! $LOCK{$key}
		301	}
		302
263	sub freeze_mainloop {	303	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	304	return unless $TICK_WATCHER->is_active;
265		305
266	my $guard = Coro::guard {	306	my $guard = Coro::guard {
267	$TICK_WATCHER->start;	307	$TICK_WATCHER->start;
268	$WRITE_RUNTIME_WATCHER->start;
269	};	308	};
270	$WRITE_RUNTIME_WATCHER->stop;
271	$TICK_WATCHER->stop;	309	$TICK_WATCHER->stop;
272	$guard	310	$guard
273	}	311	}
274		312
275	=item cf::async { BLOCK }	313	=item cf::async { BLOCK }
…		…
282		320
283	BEGIN { *async = \&Coro::async_pool }	321	BEGIN { *async = \&Coro::async_pool }
284		322
285	=item cf::sync_job { BLOCK }	323	=item cf::sync_job { BLOCK }
286		324
287	The design of crossfire+ requires that the main coro ($Coro::main) is	325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	326	is always able to handle events or runnable, as Crossfire TRT is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
290		329
291	If it must be done, put the blocking parts into C<sync_job>. This will run	330	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	331	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	332	server will be frozen during this time, so the block should either finish
294	fast or be very important.	333	fast or be very important.
…		…
297		336
298	sub sync_job(&) {	337	sub sync_job(&) {
299	my ($job) = @_;	338	my ($job) = @_;
300		339
301	if ($Coro::current == $Coro::main) {	340	if ($Coro::current == $Coro::main) {
		341	my $time = Event::time;
		342
302	# this is the main coro, too bad, we have to block	343	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	344	# till the operation succeeds, freezing the server :/
304		345
305	# TODO: use suspend/resume instead	346	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	347	# (but this is cancel-safe)
…		…
317		358
318	while ($busy) {	359	while ($busy) {
319	Coro::cede or Event::one_event;	360	Coro::cede or Event::one_event;
320	}	361	}
321		362
		363	$time = Event::time - $time;
		364
		365	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		366	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		367
		368	$tick_start += $time; # do not account sync jobs to server load
		369
322	wantarray ? @res : $res[0]	370	wantarray ? @res : $res[0]
323	} else {	371	} else {
324	# we are in another coroutine, how wonderful, everything just works	372	# we are in another coroutine, how wonderful, everything just works
325		373
326	$job->()	374	$job->()
…		…
345	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
346		394
347	$coro	395	$coro
348	}	396	}
349		397
350	sub write_runtime {	398	=item fork_call { }, $args
351	my $runtime = cf::localdir . "/runtime";
352		399
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	400	Executes the given code block with the given arguments in a seperate
354	or return;	401	process, returning the results. Everything must be serialisable with
		402	Coro::Storable. May, of course, block. Note that the executed sub may
		403	never block itself or use any form of Event handling.
355		404
356	my $value = $cf::RUNTIME + 90 + 10;	405	=cut
357	# 10 is the runtime save interval, for a monotonic clock
358	# 60 allows for the watchdog to kill the server.
359		406
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	407	sub fork_call(&@) {
361	and return;	408	my ($cb, @args) = @_;
362		409
363	aio_fsync $fh	410	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
364	and return;	411	# or die "socketpair: $!";
		412	pipe my $fh1, my $fh2
		413	or die "pipe: $!";
365		414
		415	if (my $pid = fork) {
366	close $fh	416	close $fh2;
367	or return;
368		417
369	aio_rename "$runtime~", $runtime	418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
370	and return;	419	$res = Coro::Storable::thaw $res;
371		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
372	1	439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		473	my $key = "$_[0]/$_[1]";
		474
		475	cf::sync_job {
		476	BDB::db_get $DB, undef, $key, my $data;
		477
		478	$! ? ()
		479	: $data
		480	}
		481	}
		482
		483	sub db_put($$$) {
		484	BDB::dbreq_pri 4;
		485	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		486	}
		487
		488	=item cf::cache $id => [$paths...], $processversion => $process
		489
		490	Generic caching function that returns the value of the resource $id,
		491	caching and regenerating as required.
		492
		493	This function can block.
		494
		495	=cut
		496
		497	sub cache {
		498	my ($id, $src, $processversion, $process) = @_;
		499
		500	my $meta =
		501	join "\x00",
		502	$processversion,
		503	map {
		504	aio_stat $_
		505	and Carp::croak "$_: $!";
		506
		507	($_, (stat _)[7,9])
		508	} @$src;
		509
		510	my $dbmeta = db_get cache => "$id/meta";
		511	if ($dbmeta ne $meta) {
		512	# changed, we may need to process
		513
		514	my @data;
		515	my $md5;
		516
		517	for (0 .. $#$src) {
		518	0 <= aio_load $src->[$_], $data[$_]
		519	or Carp::croak "$src->[$_]: $!";
		520	}
		521
		522	# if processing is expensive, check
		523	# checksum first
		524	if (1) {
		525	$md5 =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	Coro::cede;
		530	($src->[$_], Digest::MD5::md5_hex $data[$_])
		531	} 0.. $#$src;
		532
		533
		534	my $dbmd5 = db_get cache => "$id/md5";
		535	if ($dbmd5 eq $md5) {
		536	db_put cache => "$id/meta", $meta;
		537
		538	return db_get cache => "$id/data";
		539	}
		540	}
		541
		542	my $t1 = Time::HiRes::time;
		543	my $data = $process->(\@data);
		544	my $t2 = Time::HiRes::time;
		545
		546	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		547
		548	db_put cache => "$id/data", $data;
		549	db_put cache => "$id/md5" , $md5;
		550	db_put cache => "$id/meta", $meta;
		551
		552	return $data;
		553	}
		554
		555	db_get cache => "$id/data"
		556	}
		557
		558	=item cf::datalog type => key => value, ...
		559
		560	Log a datalog packet of the given type with the given key-value pairs.
		561
		562	=cut
		563
		564	sub datalog($@) {
		565	my ($type, %kv) = @_;
		566	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373	}	567	}
374		568
375	=back	569	=back
376		570
377	=cut	571	=cut
…		…
384	attach callbacks/event handlers (a collection of which is called an "attachment")	578	attach callbacks/event handlers (a collection of which is called an "attachment")
385	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
386		580
387	In the following description, CLASS can be any of C<global>, C<object>	581	In the following description, CLASS can be any of C<global>, C<object>
388	C<player>, C<client> or C<map> (i.e. the attachable objects in	582	C<player>, C<client> or C<map> (i.e. the attachable objects in
389	crossfire+).	583	Crossfire TRT).
390		584
391	=over 4	585	=over 4
392		586
393	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
394		588
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
558		752
559	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		757
564	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	759	my $pkg = shift @arg;
566		760
567	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
596	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
597	}	791	}
598		792
599	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
600	} else {	794	} else {
601	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
602	}	796	}
603		797
604	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
605	}	799	}
606		800
…		…
608	if (ref $_[0]) {	802	if (ref $_[0]) {
609	_object_attach @_;	803	_object_attach @_;
610	} else {	804	} else {
611	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
612	}	806	}
		807	_recalc_want;
613	};	808	};
614		809
615	# all those should be optimised	810	# all those should be optimised
616	sub cf::attachable::detach {	811	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
621	reattach ($obj);	816	reattach ($obj);
622	} else {	817	} else {
623	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
624	}	819	}
		820	_recalc_want;
625	};	821	};
626		822
627	sub cf::attachable::attached {	823	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
629		825
…		…
752	$filename, length $$rdata, scalar @$objs;	948	$filename, length $$rdata, scalar @$objs;
753		949
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	950	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	951	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	952	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	953	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	954	close $fh;
759		955
760	if (@$objs) {	956	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	959	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	960	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	962	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	963	aio_rename "$filename.pst~", "$filename.pst";
768	}	964	}
769	} else {	965	} else {
770	aio_unlink "$filename.pst";	966	aio_unlink "$filename.pst";
…		…
776	}	972	}
777	} else {	973	} else {
778	aio_unlink $filename;	974	aio_unlink $filename;
779	aio_unlink "$filename.pst";	975	aio_unlink "$filename.pst";
780	}	976	}
781
782	#d##TODO# nuke non .map-files if exist
783	if ($filename =~ s/\.map$//) {
784	aio_unlink $filename;
785	aio_unlink "$filename.pst";
786	}
787	}	977	}
788	}	978	}
789		979
790	sub object_freezer_as_string {	980	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	981	my ($rdata, $objs) = @_;
…		…
797		987
798	sub object_thawer_load {	988	sub object_thawer_load {
799	my ($filename) = @_;	989	my ($filename) = @_;
800		990
801	my ($data, $av);	991	my ($data, $av);
802
803	#d#TODO remove .map if file does not exist
804	aio_stat $filename and $filename =~ s/\.map$//;
805		992
806	(aio_load $filename, $data) >= 0	993	(aio_load $filename, $data) >= 0
807	or return;	994	or return;
808		995
809	unless (aio_stat "$filename.pst") {	996	unless (aio_stat "$filename.pst") {
…		…
811	or return;	998	or return;
812	$av = eval { (Storable::thaw $av)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
813	}	1000	}
814		1001
815	warn sprintf "loading %s (%d)\n",	1002	warn sprintf "loading %s (%d)\n",
816	$filename, length $data, scalar @{$av || []};#d#	1003	$filename, length $data, scalar @{$av || []};
817	return ($data, $av);	1004	return ($data, $av);
818	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
819		1012
820	#############################################################################	1013	#############################################################################
821	# command handling &c	1014	# command handling &c
822		1015
823	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
836	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
837	}	1030	}
838		1031
839	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
840		1033
841	Register a callbackf ro execution when the client sends an extcmd packet.	1034	Register a callback fro execution when the client sends an extcmd packet.
842		1035
843	If the callback returns something, it is sent back as if reply was being	1036	If the callback returns something, it is sent back as if reply was being
844	called.	1037	called.
845		1038
846	=cut	1039	=cut
…		…
881		1074
882	cf::override;	1075	cf::override;
883	},	1076	},
884	);	1077	);
885		1078
886	sub load_extension {
887	my ($path) = @_;
888
889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
890	my $base = $1;
891	my $pkg = $1;
892	$pkg =~ s/[^[:word:]]/_/g;
893	$pkg = "ext::$pkg";
894
895	warn "... loading '$path' into '$pkg'\n";
896
897	open my $fh, "<:utf8", $path
898	or die "$path: $!";
899
900	my $source =
901	"package $pkg; use strict; use utf8;\n"
902	. "#line 1 \"$path\"\n{\n"
903	. (do { local $/; <$fh> })
904	. "\n};\n1";
905
906	unless (eval $source) {
907	my $msg = $@ ? "$path: $@\n"
908	: "extension disabled.\n";
909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
910	warn $@;
911	warn "mandatory extension failed to load, exiting.\n";
912	exit 1;
913	}
914	die $@;
915	}
916
917	push @EXTS, $pkg;
918	}
919
920	sub load_extensions {	1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
921	for my $ext (<$LIBDIR/*.ext>) {	1083	for my $path (<$LIBDIR/*.ext>) {
922	next unless -r $ext;	1084	next unless -r $path;
923	eval {	1085
924	load_extension $ext;	1086	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1087	my $base = $1;
		1088	my $pkg = $1;
		1089	$pkg =~ s/[^[:word:]]/_/g;
		1090	$pkg = "ext::$pkg";
		1091
		1092	open my $fh, "<:utf8", $path
		1093	or die "$path: $!";
		1094
		1095	my $source = do { local $/; <$fh> };
		1096
		1097	my %ext = (
		1098	path => $path,
		1099	base => $base,
		1100	pkg => $pkg,
		1101	);
		1102
		1103	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1104	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1105
		1106	$ext{source} =
		1107	"package $pkg; use strict; use utf8;\n"
		1108	. "#line 1 \"$path\"\n{\n"
		1109	. $source
		1110	. "\n};\n1";
		1111
		1112	$todo{$base} = \%ext;
		1113	}
		1114
		1115	my %done;
		1116	while (%todo) {
		1117	my $progress;
		1118
		1119	while (my ($k, $v) = each %todo) {
		1120	for (split /,\s*/, $v->{meta}{depends}) {
		1121	goto skip
		1122	unless exists $done{$_};
		1123	}
		1124
		1125	warn "... loading '$k' into '$v->{pkg}'\n";
		1126
		1127	unless (eval $v->{source}) {
		1128	my $msg = $@ ? "$v->{path}: $@\n"
		1129	: "$v->{base}: extension inactive.\n";
		1130
		1131	if (exists $v->{meta}{mandatory}) {
		1132	warn $msg;
		1133	warn "mandatory extension failed to load, exiting.\n";
		1134	exit 1;
		1135	}
		1136
		1137	warn $msg;
		1138	}
		1139
		1140	$done{$k} = delete $todo{$k};
		1141	push @EXTS, $v->{pkg};
		1142	$progress = 1;
925	1	1143	}
926	} or warn "$ext not loaded: $@";	1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
927	}	1149	};
928	}	1150	}
929		1151
930	#############################################################################	1152	#############################################################################
931		1153
		1154	=back
		1155
932	=head2 CORE EXTENSIONS	1156	=head2 CORE EXTENSIONS
933		1157
934	Functions and methods that extend core crossfire objects.	1158	Functions and methods that extend core crossfire objects.
935		1159
936	=cut	1160	=cut
…		…
948	Returns the given player object, loading it if necessary (might block).	1172	Returns the given player object, loading it if necessary (might block).
949		1173
950	=cut	1174	=cut
951		1175
952	sub playerdir($) {	1176	sub playerdir($) {
953	cf::localdir	1177	"$PLAYERDIR/"
954	. "/"
955	. cf::playerdir
956	. "/"
957	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1178	. (ref $_[0] ? $_[0]->ob->name : $_[0])
958	}	1179	}
959		1180
960	sub path($) {	1181	sub path($) {
961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1182	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962		1183
963	(playerdir $login) . "/$login.pl"	1184	(playerdir $login) . "/playerdata"
964	}	1185	}
965		1186
966	sub find_active($) {	1187	sub find_active($) {
967	$cf::PLAYER{$_[0]}	1188	$cf::PLAYER{$_[0]}
968	and $cf::PLAYER{$_[0]}->active	1189	and $cf::PLAYER{$_[0]}->active
…		…
981	my $login = $_[0];	1202	my $login = $_[0];
982		1203
983	my $guard = cf::lock_acquire "user_find:$login";	1204	my $guard = cf::lock_acquire "user_find:$login";
984		1205
985	$cf::PLAYER{$_[0]} || do {	1206	$cf::PLAYER{$_[0]} || do {
		1207	# rename old playerfiles to new ones
		1208	#TODO: remove when no longer required
		1209	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1210	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1211	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1212	aio_unlink +(playerdir $login) . "/$login.pl";
		1213
986	my $pl = load_pl path $login	1214	my $pl = load_pl path $login
987	or return;	1215	or return;
988	$cf::PLAYER{$login} = $pl	1216	$cf::PLAYER{$login} = $pl
989	}	1217	}
990	}	1218	}
…		…
1027		1255
1028	=cut	1256	=cut
1029		1257
1030	sub quit_character {	1258	sub quit_character {
1031	my ($pl) = @_;	1259	my ($pl) = @_;
		1260
		1261	my $name = $pl->ob->name;
1032		1262
1033	$pl->{deny_save} = 1;	1263	$pl->{deny_save} = 1;
1034	$pl->password ("*"); # this should lock out the player until we nuked the dir	1264	$pl->password ("*"); # this should lock out the player until we nuked the dir
1035		1265
1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1266	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1041	my $path = playerdir $pl;	1271	my $path = playerdir $pl;
1042	my $temp = "$path~$cf::RUNTIME~deleting~";	1272	my $temp = "$path~$cf::RUNTIME~deleting~";
1043	aio_rename $path, $temp;	1273	aio_rename $path, $temp;
1044	delete $cf::PLAYER{$pl->ob->name};	1274	delete $cf::PLAYER{$pl->ob->name};
1045	$pl->destroy;	1275	$pl->destroy;
		1276
		1277	my $prefix = qr<^~\Q$name\E/>;
		1278
		1279	# nuke player maps
		1280	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1281
1046	IO::AIO::aio_rmtree $temp;	1282	IO::AIO::aio_rmtree $temp;
		1283	}
		1284
		1285	=item $pl->kick
		1286
		1287	Kicks a player out of the game. This destroys the connection.
		1288
		1289	=cut
		1290
		1291	sub kick {
		1292	my ($pl, $kicker) = @_;
		1293
		1294	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1295	$pl->killer ("kicked");
		1296	$pl->ns->destroy;
1047	}	1297	}
1048		1298
1049	=item cf::player::list_logins	1299	=item cf::player::list_logins
1050		1300
1051	Returns am arrayref of all valid playernames in the system, can take a	1301	Returns am arrayref of all valid playernames in the system, can take a
1052	while and may block, so not sync_job-capable, ever.	1302	while and may block, so not sync_job-capable, ever.
1053		1303
1054	=cut	1304	=cut
1055		1305
1056	sub list_logins {	1306	sub list_logins {
1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1307	my $dirs = aio_readdir $PLAYERDIR
1058	or return [];	1308	or return [];
1059		1309
1060	my @logins;	1310	my @logins;
1061		1311
1062	for my $login (@$dirs) {	1312	for my $login (@$dirs) {
…		…
1079	=cut	1329	=cut
1080		1330
1081	sub maps($) {	1331	sub maps($) {
1082	my ($pl) = @_;	1332	my ($pl) = @_;
1083		1333
		1334	$pl = ref $pl ? $pl->ob->name : $pl;
		1335
1084	my $files = aio_readdir playerdir $pl	1336	my $files = aio_readdir playerdir $pl
1085	or return;	1337	or return;
1086		1338
1087	my @paths;	1339	my @paths;
1088		1340
1089	for (@$files) {	1341	for (@$files) {
1090	utf8::decode $_;	1342	utf8::decode $_;
1091	next if /\.(?:pl|pst)$/;	1343	next if /\.(?:pl|pst)$/;
1092	next unless /^$PATH_SEP/o;	1344	next unless /^$PATH_SEP/o;
1093		1345
1094	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;	1346	push @paths, cf::map::normalise "~$pl/$_";
1095	}	1347	}
1096		1348
1097	\@paths	1349	\@paths
1098	}	1350	}
1099		1351
1100	=item $player->ext_reply ($msgid, $msgtype, %msg)	1352	=item $player->ext_reply ($msgid, %msg)
1101		1353
1102	Sends an ext reply to the player.	1354	Sends an ext reply to the player.
1103		1355
1104	=cut	1356	=cut
1105		1357
1106	sub ext_reply($$$%) {	1358	sub ext_reply($$%) {
1107	my ($self, $id, %msg) = @_;	1359	my ($self, $id, %msg) = @_;
1108		1360
1109	$msg{msgid} = $id;	1361	$msg{msgid} = $id;
1110		1362
1111	$self->send ("ext " . cf::to_json \%msg);	1363	$self->send ("ext " . cf::to_json \%msg);
1112	}	1364	}
1113		1365
1114	package cf;	1366	=item $player->ext_event ($type, %msg)
		1367
		1368	Sends an ext event to the client.
		1369
		1370	=cut
		1371
		1372	sub ext_event($$%) {
		1373	my ($self, $type, %msg) = @_;
		1374
		1375	$self->ns->ext_event ($type, %msg);
		1376	}
		1377
		1378	=head3 cf::region
		1379
		1380	=over 4
		1381
		1382	=cut
		1383
		1384	package cf::region;
		1385
		1386	=item cf::region::find_by_path $path
		1387
		1388	Tries to decuce the likely region for a map knowing only its path.
		1389
		1390	=cut
		1391
		1392	sub find_by_path($) {
		1393	my ($path) = @_;
		1394
		1395	my ($match, $specificity);
		1396
		1397	for my $region (list) {
		1398	if ($region->match && $path =~ $region->match) {
		1399	($match, $specificity) = ($region, $region->specificity)
		1400	if $region->specificity > $specificity;
		1401	}
		1402	}
		1403
		1404	$match
		1405	}
1115		1406
1116	=back	1407	=back
1117
1118		1408
1119	=head3 cf::map	1409	=head3 cf::map
1120		1410
1121	=over 4	1411	=over 4
1122		1412
…		…
1177	my ($self, $merge) = @_;	1467	my ($self, $merge) = @_;
1178		1468
1179	# we have to keep some variables in memory intact	1469	# we have to keep some variables in memory intact
1180	local $self->{path};	1470	local $self->{path};
1181	local $self->{load_path};	1471	local $self->{load_path};
1182	local $self->{deny_save};
1183	local $self->{deny_reset};
1184		1472
1185	$self->SUPER::thawer_merge ($merge);	1473	$self->SUPER::thawer_merge ($merge);
1186	}	1474	}
1187		1475
1188	sub normalise {	1476	sub normalise {
…		…
1260		1548
1261	# the original (read-only) location	1549	# the original (read-only) location
1262	sub load_path {	1550	sub load_path {
1263	my ($self) = @_;	1551	my ($self) = @_;
1264		1552
1265	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1553	"$MAPDIR/$self->{path}.map"
1266	}	1554	}
1267		1555
1268	# the temporary/swap location	1556	# the temporary/swap location
1269	sub save_path {	1557	sub save_path {
1270	my ($self) = @_;	1558	my ($self) = @_;
1271		1559
1272	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1560	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1273	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1561	"$TMPDIR/$path.map"
1274	}	1562	}
1275		1563
1276	# the unique path, undef == no special unique path	1564	# the unique path, undef == no special unique path
1277	sub uniq_path {	1565	sub uniq_path {
1278	my ($self) = @_;	1566	my ($self) = @_;
1279		1567
1280	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1568	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1281	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1569	"$UNIQUEDIR/$path"
1282	}	1570	}
1283		1571
1284	# and all this just because we cannot iterate over	1572	# and all this just because we cannot iterate over
1285	# all maps in C++...	1573	# all maps in C++...
1286	sub change_all_map_light {	1574	sub change_all_map_light {
…		…
1288		1576
1289	$_->change_map_light ($change)	1577	$_->change_map_light ($change)
1290	for grep $_->outdoor, values %cf::MAP;	1578	for grep $_->outdoor, values %cf::MAP;
1291	}	1579	}
1292		1580
		1581	sub decay_objects {
		1582	my ($self) = @_;
		1583
		1584	return if $self->{deny_reset};
		1585
		1586	$self->do_decay_objects;
		1587	}
		1588
1293	sub unlink_save {	1589	sub unlink_save {
1294	my ($self) = @_;	1590	my ($self) = @_;
1295		1591
1296	utf8::encode (my $save = $self->save_path);	1592	utf8::encode (my $save = $self->save_path);
1297	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1593	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1298	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1594	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1299
1300	#d#TODO remove .map and also nuke
1301	$save =~ s/\.map// or return;#d#
1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1303	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1304	}	1595	}
1305		1596
1306	sub load_header_from($) {	1597	sub load_header_from($) {
1307	my ($self, $path) = @_;	1598	my ($self, $path) = @_;
1308		1599
…		…
1358	$self->load_header_orig	1649	$self->load_header_orig
1359	or return;	1650	or return;
1360	$self->prepare_orig;	1651	$self->prepare_orig;
1361	}	1652	}
1362		1653
		1654	$self->{deny_reset} = 1
		1655	if $self->no_reset;
		1656
		1657	$self->default_region (cf::region::find_by_path $self->{path})
		1658	unless $self->default_region;
		1659
1363	1	1660	1
1364	}	1661	}
1365		1662
1366	sub find;	1663	sub find;
1367	sub find {	1664	sub find {
…		…
1379	$map->{last_save} = $cf::RUNTIME;	1676	$map->{last_save} = $cf::RUNTIME;
1380		1677
1381	$map->load_header	1678	$map->load_header
1382	or return;	1679	or return;
1383		1680
1384	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1681	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1385	# doing this can freeze the server in a sync job, obviously	1682	# doing this can freeze the server in a sync job, obviously
1386	#$cf::WAIT_FOR_TICK->wait;	1683	#$cf::WAIT_FOR_TICK->wait;
1387	$map->reset;	1684	$map->reset;
1388	undef $guard;	1685	undef $guard;
1389	return find $path;	1686	return find $path;
…		…
1400	my ($self) = @_;	1697	my ($self) = @_;
1401		1698
1402	local $self->{deny_reset} = 1; # loading can take a long time	1699	local $self->{deny_reset} = 1; # loading can take a long time
1403		1700
1404	my $path = $self->{path};	1701	my $path = $self->{path};
		1702
		1703	{
1405	my $guard = cf::lock_acquire "map_load:$path";	1704	my $guard = cf::lock_acquire "map_load:$path";
1406		1705
1407	return if $self->in_memory != cf::MAP_SWAPPED;	1706	return if $self->in_memory != cf::MAP_SWAPPED;
1408		1707
1409	$self->in_memory (cf::MAP_LOADING);	1708	$self->in_memory (cf::MAP_LOADING);
1410		1709
1411	$self->alloc;	1710	$self->alloc;
1412		1711
1413	$self->pre_load;	1712	$self->pre_load;
1414
1415	$self->_load_objects ($self->{load_path}, 1)
1416	or return;
1417
1418	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1419	if delete $self->{load_original};
1420
1421	if (my $uniq = $self->uniq_path) {
1422	utf8::encode $uniq;
1423	if (aio_open $uniq, O_RDONLY, 0) {
1424	$self->clear_unique_items;
1425	$self->_load_objects ($uniq, 0);
1426	}
1427	}
1428
1429	Coro::cede;
1430
1431	# now do the right thing for maps
1432	$self->link_multipart_objects;
1433
1434	unless ($self->{deny_activate}) {
1435	$self->decay_objects;
1436	$self->fix_auto_apply;
1437	$self->update_buttons;
1438	Coro::cede;	1713	Coro::cede;
1439	$self->set_darkness_map;	1714
		1715	$self->_load_objects ($self->{load_path}, 1)
		1716	or return;
		1717
		1718	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1719	if delete $self->{load_original};
		1720
		1721	if (my $uniq = $self->uniq_path) {
		1722	utf8::encode $uniq;
		1723	if (aio_open $uniq, O_RDONLY, 0) {
		1724	$self->clear_unique_items;
		1725	$self->_load_objects ($uniq, 0);
		1726	}
		1727	}
		1728
		1729	Coro::cede;
		1730	# now do the right thing for maps
		1731	$self->link_multipart_objects;
1440	$self->difficulty ($self->estimate_difficulty)	1732	$self->difficulty ($self->estimate_difficulty)
1441	unless $self->difficulty;	1733	unless $self->difficulty;
1442	Coro::cede;	1734	Coro::cede;
		1735
		1736	unless ($self->{deny_activate}) {
		1737	$self->decay_objects;
		1738	$self->fix_auto_apply;
		1739	$self->update_buttons;
		1740	Coro::cede;
		1741	$self->set_darkness_map;
		1742	Coro::cede;
1443	$self->activate;	1743	$self->activate;
		1744	}
		1745
		1746	$self->in_memory (cf::MAP_IN_MEMORY);
1444	}	1747	}
1445		1748
1446	$self->post_load;	1749	$self->post_load;
1447
1448	$self->in_memory (cf::MAP_IN_MEMORY);
1449	}	1750	}
1450		1751
1451	sub customise_for {	1752	sub customise_for {
1452	my ($self, $ob) = @_;	1753	my ($self, $ob) = @_;
1453		1754
1454	return find "~" . $ob->name . "/" . $self->{path}	1755	return find "~" . $ob->name . "/" . $self->{path}
1455	if $self->per_player;	1756	if $self->per_player;
		1757
		1758	# return find "?party/" . $ob->name . "/" . $self->{path}
		1759	# if $self->per_party;
1456		1760
1457	$self	1761	$self
1458	}	1762	}
1459		1763
1460	# find and load all maps in the 3x3 area around a map	1764	# find and load all maps in the 3x3 area around a map
…		…
1571		1875
1572	sub reset_at {	1876	sub reset_at {
1573	my ($self) = @_;	1877	my ($self) = @_;
1574		1878
1575	# TODO: safety, remove and allow resettable per-player maps	1879	# TODO: safety, remove and allow resettable per-player maps
1576	return 1e99 if $self->isa ("ext::map_per_player");#d#
1577	return 1e99 if $self->{deny_reset};	1880	return 1e99 if $self->{deny_reset};
1578		1881
1579	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1882	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1580	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1883	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1581		1884
…		…
1592	my ($self) = @_;	1895	my ($self) = @_;
1593		1896
1594	my $lock = cf::lock_acquire "map_data:$self->{path}";	1897	my $lock = cf::lock_acquire "map_data:$self->{path}";
1595		1898
1596	return if $self->players;	1899	return if $self->players;
1597	return if $self->isa ("ext::map_per_player");#d#
1598		1900
1599	warn "resetting map ", $self->path;#d#	1901	warn "resetting map ", $self->path;
		1902
		1903	$self->in_memory (cf::MAP_SWAPPED);
		1904
		1905	# need to save uniques path
		1906	unless ($self->{deny_save}) {
		1907	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1908
		1909	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1910	if $uniq;
		1911	}
1600		1912
1601	delete $cf::MAP{$self->path};	1913	delete $cf::MAP{$self->path};
1602		1914
1603	$self->in_memory (cf::MAP_SWAPPED);
1604	$self->clear;	1915	$self->clear;
1605		1916
1606	$_->clear_links_to ($self) for values %cf::MAP;	1917	$_->clear_links_to ($self) for values %cf::MAP;
1607		1918
1608	$self->unlink_save;	1919	$self->unlink_save;
…		…
1627	$cf::MAP{$self->path} = $self;	1938	$cf::MAP{$self->path} = $self;
1628		1939
1629	$self->reset; # polite request, might not happen	1940	$self->reset; # polite request, might not happen
1630	}	1941	}
1631		1942
		1943	=item $maps = cf::map::tmp_maps
		1944
		1945	Returns an arrayref with all map paths of currently instantiated and saved
		1946	maps. May block.
		1947
		1948	=cut
		1949
		1950	sub tmp_maps() {
		1951	[
		1952	map {
		1953	utf8::decode $_;
		1954	/\.map$/
		1955	? normalise $_
		1956	: ()
		1957	} @{ aio_readdir $TMPDIR or [] }
		1958	]
		1959	}
		1960
		1961	=item $maps = cf::map::random_maps
		1962
		1963	Returns an arrayref with all map paths of currently instantiated and saved
		1964	random maps. May block.
		1965
		1966	=cut
		1967
		1968	sub random_maps() {
		1969	[
		1970	map {
		1971	utf8::decode $_;
		1972	/\.map$/
		1973	? normalise "?random/$_"
		1974	: ()
		1975	} @{ aio_readdir $RANDOMDIR or [] }
		1976	]
		1977	}
		1978
1632	=item cf::map::unique_maps	1979	=item cf::map::unique_maps
1633		1980
1634	Returns an arrayref of paths of all shared maps that have	1981	Returns an arrayref of paths of all shared maps that have
1635	instantiated unique items. May block.	1982	instantiated unique items. May block.
1636		1983
1637	=cut	1984	=cut
1638		1985
1639	sub unique_maps() {	1986	sub unique_maps() {
1640	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1987	[
1641	or return;	1988	map {
1642
1643	my @paths;
1644
1645	for (@$files) {
1646	utf8::decode $_;	1989	utf8::decode $_;
1647	next if /\.pst$/;	1990	/\.map$/
1648	next unless /^$PATH_SEP/o;	1991	? normalise $_
1649		1992	: ()
1650	push @paths, cf::map::normalise $_;	1993	} @{ aio_readdir $UNIQUEDIR or [] }
1651	}	1994	]
1652
1653	\@paths
1654	}	1995	}
1655		1996
1656	package cf;	1997	package cf;
1657		1998
1658	=back	1999	=back
…		…
1704		2045
1705	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2046	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1706		2047
1707	if ($self->{record_replies}) {	2048	if ($self->{record_replies}) {
1708	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2049	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2050
1709	} else {	2051	} else {
		2052	my $pl = $self->contr;
		2053
		2054	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2055	my $diag = $pl->{npc_dialog};
		2056	$diag->{pl}->ext_reply (
		2057	$diag->{id}, msgtype => "reply", msg => $msg, add_topics => []
		2058	);
		2059
		2060	} else {
1710	$msg = $npc->name . " says: $msg" if $npc;	2061	$msg = $npc->name . " says: $msg" if $npc;
1711	$self->message ($msg, $flags);	2062	$self->message ($msg, $flags);
		2063	}
1712	}	2064	}
1713	}	2065	}
1714		2066
1715	=item $player_object->may ("access")	2067	=item $player_object->may ("access")
1716		2068
…		…
1764	$self->deactivate_recursive;	2116	$self->deactivate_recursive;
1765		2117
1766	return if UNIVERSAL::isa $self->map, "ext::map_link";	2118	return if UNIVERSAL::isa $self->map, "ext::map_link";
1767		2119
1768	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2120	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1769	if $self->map;	2121	if $self->map && $self->map->{path} ne "{link}";
1770		2122
1771	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2123	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1772	}	2124	}
1773		2125
1774	sub cf::object::player::leave_link {	2126	sub cf::object::player::leave_link {
1775	my ($self, $map, $x, $y) = @_;	2127	my ($self, $map, $x, $y) = @_;
		2128
		2129	return unless $self->contr->active;
1776		2130
1777	my $link_pos = delete $self->{_link_pos};	2131	my $link_pos = delete $self->{_link_pos};
1778		2132
1779	unless ($map) {	2133	unless ($map) {
1780	# restore original map position	2134	# restore original map position
…		…
1798	$map->load;	2152	$map->load;
1799	$map->load_diag;	2153	$map->load_diag;
1800		2154
1801	return unless $self->contr->active;	2155	return unless $self->contr->active;
1802	$self->activate_recursive;	2156	$self->activate_recursive;
		2157
		2158	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1803	$self->enter_map ($map, $x, $y);	2159	$self->enter_map ($map, $x, $y);
1804	}	2160	}
1805		2161
1806	cf::player->attach (
1807	on_logout => sub {
1808	my ($pl) = @_;
1809
1810	# abort map switching before logout
1811	if ($pl->ob->{_link_pos}) {
1812	cf::sync_job {
1813	$pl->ob->leave_link
1814	};
1815	}
1816	},
1817	on_login => sub {
1818	my ($pl) = @_;
1819
1820	# try to abort aborted map switching on player login :)
1821	# should happen only on crashes
1822	if ($pl->ob->{_link_pos}) {
1823	$pl->ob->enter_link;
1824	(async {
1825	# we need this sleep as the login has a concurrent enter_exit running
1826	# and this sleep increases chances of the player not ending up in scorn
1827	$pl->ob->reply (undef,
1828	"There was an internal problem at your last logout, "
1829	. "the server will try to bring you to your intended destination in a second.",
1830	cf::NDI_RED);
1831	Coro::Timer::sleep 1;
1832	$pl->ob->leave_link;
1833	})->prio (2);
1834	}
1835	},
1836	);
1837
1838	=item $player_object->goto ($path, $x, $y)	2162	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1839		2163
		2164	Moves the player to the given map-path and coordinates by first freezing
		2165	her, loading and preparing them map, calling the provided $check callback
		2166	that has to return the map if sucecssful, and then unfreezes the player on
		2167	the new (success) or old (failed) map position.
		2168
1840	=cut	2169	=cut
		2170
		2171	our $GOTOGEN;
1841		2172
1842	sub cf::object::player::goto {	2173	sub cf::object::player::goto {
1843	my ($self, $path, $x, $y) = @_;	2174	my ($self, $path, $x, $y, $check) = @_;
		2175
		2176	# do generation counting so two concurrent goto's will be executed in-order
		2177	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1844		2178
1845	$self->enter_link;	2179	$self->enter_link;
1846		2180
1847	(async {	2181	(async {
1848	my $map = eval {	2182	my $map = eval {
1849	my $map = cf::map::find $path;	2183	my $map = cf::map::find $path;
		2184
		2185	if ($map) {
1850	$map = $map->customise_for ($self) if $map;	2186	$map = $map->customise_for ($self);
		2187	$map = $check->($map) if $check && $map;
		2188	} else {
		2189	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2190	}
		2191
1851	$map	2192	$map
		2193	};
		2194
		2195	if ($@) {
		2196	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2197	LOG llevError | logBacktrace, Carp::longmess $@;
1852	} or	2198	}
1853	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1854		2199
		2200	if ($gen == $self->{_goto_generation}) {
		2201	delete $self->{_goto_generation};
1855	$self->leave_link ($map, $x, $y);	2202	$self->leave_link ($map, $x, $y);
		2203	}
1856	})->prio (1);	2204	})->prio (1);
1857	}	2205	}
1858		2206
1859	=item $player_object->enter_exit ($exit_object)	2207	=item $player_object->enter_exit ($exit_object)
1860		2208
…		…
1899		2247
1900	$rmp->{random_seed} ||= $exit->random_seed;	2248	$rmp->{random_seed} ||= $exit->random_seed;
1901		2249
1902	my $data = cf::to_json $rmp;	2250	my $data = cf::to_json $rmp;
1903	my $md5 = Digest::MD5::md5_hex $data;	2251	my $md5 = Digest::MD5::md5_hex $data;
1904	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2252	my $meta = "$RANDOMDIR/$md5.meta";
1905		2253
1906	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2254	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1907	aio_write $fh, 0, (length $data), $data, 0;	2255	aio_write $fh, 0, (length $data), $data, 0;
1908	undef $fh;	2256	undef $fh;
1909	aio_rename "$meta~", $meta;	2257	aio_rename "$meta~", $meta;
…		…
1918		2266
1919	return unless $self->type == cf::PLAYER;	2267	return unless $self->type == cf::PLAYER;
1920		2268
1921	if ($exit->slaying eq "/!") {	2269	if ($exit->slaying eq "/!") {
1922	#TODO: this should de-fi-ni-te-ly not be a sync-job	2270	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2271	# the problem is that $exit might not survive long enough
		2272	# so it needs to be done right now, right here
1923	cf::sync_job { prepare_random_map $exit };	2273	cf::sync_job { prepare_random_map $exit };
1924	}	2274	}
1925		2275
1926	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2276	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1927	my $hp = $exit->stats->hp;	2277	my $hp = $exit->stats->hp;
…		…
1935	$self->goto ($slaying, $hp, $sp);	2285	$self->goto ($slaying, $hp, $sp);
1936		2286
1937	1;	2287	1;
1938	}) {	2288	}) {
1939	$self->message ("Something went wrong deep within the crossfire server. "	2289	$self->message ("Something went wrong deep within the crossfire server. "
1940	. "I'll try to bring you back to the map you were before. "	2290	. "I'll try to bring you back to the map you were before. "
1941	. "Please report this to the dungeon master!",	2291	. "Please report this to the dungeon master!",
1942	cf::NDI_UNIQUE | cf::NDI_RED);	2292	cf::NDI_UNIQUE | cf::NDI_RED);
1943		2293
1944	warn "ERROR in enter_exit: $@";	2294	warn "ERROR in enter_exit: $@";
1945	$self->leave_link;	2295	$self->leave_link;
1946	}	2296	}
1947	})->prio (1);	2297	})->prio (1);
…		…
1960		2310
1961	sub cf::client::send_drawinfo {	2311	sub cf::client::send_drawinfo {
1962	my ($self, $text, $flags) = @_;	2312	my ($self, $text, $flags) = @_;
1963		2313
1964	utf8::encode $text;	2314	utf8::encode $text;
1965	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2315	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1966	}	2316	}
1967		2317
		2318	=item $client->ext_event ($type, %msg)
		2319
		2320	Sends an exti event to the client.
		2321
		2322	=cut
		2323
		2324	sub cf::client::ext_event($$%) {
		2325	my ($self, $type, %msg) = @_;
		2326
		2327	$msg{msgtype} = "event_$type";
		2328	$self->send_packet ("ext " . cf::to_json \%msg);
		2329	}
1968		2330
1969	=item $success = $client->query ($flags, "text", \&cb)	2331	=item $success = $client->query ($flags, "text", \&cb)
1970		2332
1971	Queues a query to the client, calling the given callback with	2333	Queues a query to the client, calling the given callback with
1972	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2334	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
2001	# get handled first	2363	# get handled first
2002	my $queue = delete $ns->{query_queue}	2364	my $queue = delete $ns->{query_queue}
2003	or return; # be conservative, not sure how that can happen, but we saw a crash here	2365	or return; # be conservative, not sure how that can happen, but we saw a crash here
2004		2366
2005	(shift @$queue)->[1]->($msg);	2367	(shift @$queue)->[1]->($msg);
		2368	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
2006		2369
2007	push @{ $ns->{query_queue} }, @$queue;	2370	push @{ $ns->{query_queue} }, @$queue;
2008		2371
2009	if (@{ $ns->{query_queue} } == @$queue) {	2372	if (@{ $ns->{query_queue} } == @$queue) {
2010	if (@$queue) {	2373	if (@$queue) {
…		…
2068		2431
2069	# here we export the classes and methods available to script code	2432	# here we export the classes and methods available to script code
2070		2433
2071	=pod	2434	=pod
2072		2435
2073	The following fucntions and emthods are available within a safe environment:	2436	The following functions and methods are available within a safe environment:
2074		2437
2075	cf::object contr pay_amount pay_player map	2438	cf::object contr pay_amount pay_player map
2076	cf::object::player player	2439	cf::object::player player
2077	cf::player peaceful	2440	cf::player peaceful
2078	cf::map trigger	2441	cf::map trigger
…		…
2159	=back	2522	=back
2160		2523
2161	=cut	2524	=cut
2162		2525
2163	#############################################################################	2526	#############################################################################
		2527	# the server's init and main functions
2164		2528
2165	=head2 EXTENSION DATABASE SUPPORT	2529	sub load_facedata($) {
		2530	my ($path) = @_;
2166		2531
2167	Crossfire maintains a very simple database for extension use. It can	2532	warn "loading facedata from $path\n";
2168	currently store anything that can be serialised using Storable, which
2169	excludes objects.
2170		2533
2171	The parameter C<$family> should best start with the name of the extension	2534	my $facedata;
2172	using it, it should be unique.	2535	0 < aio_load $path, $facedata
		2536	or die "$path: $!";
2173		2537
2174	=over 4	2538	$facedata = Coro::Storable::thaw $facedata;
2175		2539
2176	=item $hashref = cf::db_get $family	2540	$facedata->{version} == 2
		2541	or cf::cleanup "$path: version mismatch, cannot proceed.";
2177		2542
2178	Return a hashref for use by the extension C<$family>, which can be
2179	modified. After modifications, you have to call C<cf::db_dirty> or
2180	C<cf::db_sync>.
2181
2182	=item $value = cf::db_get $family => $key
2183
2184	Returns a single value from the database
2185
2186	=item cf::db_put $family => $hashref
2187
2188	Stores the given family hashref into the database. Updates are delayed, if
2189	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2190
2191	=item cf::db_put $family => $key => $value
2192
2193	Stores the given C<$value> in the family hash. Updates are delayed, if you
2194	want the data to be synced to disk immediately, use C<cf::db_sync>.
2195
2196	=item cf::db_dirty
2197
2198	Marks the database as dirty, to be updated at a later time.
2199
2200	=item cf::db_sync
2201
2202	Immediately write the database to disk I<if it is dirty>.
2203
2204	=cut
2205
2206	our $DB;
2207
2208	{
2209	my $path = cf::localdir . "/database.pst";
2210
2211	sub db_load() {
2212	$DB = stat $path ? Storable::retrieve $path : { };
2213	}	2543	{
		2544	my $faces = $facedata->{faceinfo};
2214		2545
2215	my $pid;	2546	while (my ($face, $info) = each %$faces) {
2216		2547	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2217	sub db_save() {	2548	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2218	waitpid $pid, 0 if $pid;	2549	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2219	if (0 == ($pid = fork)) {	2550	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2220	$DB->{_meta}{version} = 1;	2551	Coro::cede;
2221	Storable::nstore $DB, "$path~";
2222	rename "$path~", $path;
2223	cf::_exit 0 if defined $pid;
2224	}
2225	}
2226
2227	my $dirty;
2228
2229	sub db_sync() {
2230	db_save if $dirty;
2231	undef $dirty;
2232	}
2233
2234	my $idle = Event->idle (
2235	reentrant => 0,
2236	min => 10,
2237	max => 20,
2238	repeat => 0,
2239	data => WF_AUTOCANCEL,
2240	cb => \&db_sync,
2241	);
2242
2243	sub db_dirty() {
2244	$dirty = 1;
2245	$idle->start;
2246	}
2247
2248	sub db_get($;$) {
2249	@_ >= 2
2250	? $DB->{$_[0]}{$_[1]}
2251	: ($DB->{$_[0]} ||= { })
2252	}
2253
2254	sub db_put($$;$) {
2255	if (@_ >= 3) {
2256	$DB->{$_[0]}{$_[1]} = $_[2];
2257	} else {
2258	$DB->{$_[0]} = $_[1];
2259	}
2260	db_dirty;
2261	}
2262
2263	cf::global->attach (
2264	prio => 10000,
2265	on_cleanup => sub {
2266	db_sync;
2267	},	2552	}
2268	);
2269	}
2270		2553
2271	#############################################################################	2554	while (my ($face, $info) = each %$faces) {
2272	# the server's main()	2555	next unless $info->{smooth};
		2556	my $idx = cf::face::find $face
		2557	or next;
		2558	if (my $smooth = cf::face::find $info->{smooth}) {
		2559	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2560	} else {
		2561	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2562	}
		2563	Coro::cede;
		2564	}
		2565	}
		2566
		2567	{
		2568	my $anims = $facedata->{animinfo};
		2569
		2570	while (my ($anim, $info) = each %$anims) {
		2571	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2572	Coro::cede;
		2573	}
		2574
		2575	cf::anim::invalidate_all; # d'oh
		2576	}
		2577
		2578	1
		2579	}
		2580
		2581	sub reload_regions {
		2582	load_resource_file "$MAPDIR/regions"
		2583	or die "unable to load regions file\n";
		2584	}
		2585
		2586	sub reload_facedata {
		2587	load_facedata "$DATADIR/facedata"
		2588	or die "unable to load facedata\n";
		2589	}
		2590
		2591	sub reload_archetypes {
		2592	load_resource_file "$DATADIR/archetypes"
		2593	or die "unable to load archetypes\n";
		2594	}
		2595
		2596	sub reload_treasures {
		2597	load_resource_file "$DATADIR/treasures"
		2598	or die "unable to load treasurelists\n";
		2599	}
		2600
		2601	sub reload_resources {
		2602	warn "reloading resource files...\n";
		2603
		2604	reload_regions;
		2605	reload_facedata;
		2606	#reload_archetypes;#d#
		2607	reload_archetypes;
		2608	reload_treasures;
		2609
		2610	warn "finished reloading resource files\n";
		2611	}
		2612
		2613	sub init {
		2614	reload_resources;
		2615	}
2273		2616
2274	sub cfg_load {	2617	sub cfg_load {
2275	open my $fh, "<:utf8", cf::confdir . "/config"	2618	open my $fh, "<:utf8", "$CONFDIR/config"
2276	or return;	2619	or return;
2277		2620
2278	local $/;	2621	local $/;
2279	*CFG = YAML::Syck::Load <$fh>;	2622	*CFG = YAML::Syck::Load <$fh>;
2280		2623
…		…
2300	Event::one_event;	2643	Event::one_event;
2301	})->prio (Coro::PRIO_MAX);	2644	})->prio (Coro::PRIO_MAX);
2302	};	2645	};
2303		2646
2304	cfg_load;	2647	cfg_load;
2305	db_load;	2648	db_init;
2306	load_extensions;	2649	load_extensions;
2307		2650
2308	$TICK_WATCHER->start;	2651	$TICK_WATCHER->start;
2309	Event::loop;	2652	Event::loop;
2310	}	2653	}
…		…
2325	},	2668	},
2326	);	2669	);
2327	}	2670	}
2328	}	2671	}
2329		2672
		2673	sub write_runtime {
		2674	my $runtime = "$LOCALDIR/runtime";
		2675
		2676	# first touch the runtime file to show we are still running:
		2677	# the fsync below can take a very very long time.
		2678
		2679	IO::AIO::aio_utime $runtime, undef, undef;
		2680
		2681	my $guard = cf::lock_acquire "write_runtime";
		2682
		2683	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2684	or return;
		2685
		2686	my $value = $cf::RUNTIME + 90 + 10;
		2687	# 10 is the runtime save interval, for a monotonic clock
		2688	# 60 allows for the watchdog to kill the server.
		2689
		2690	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2691	and return;
		2692
		2693	# always fsync - this file is important
		2694	aio_fsync $fh
		2695	and return;
		2696
		2697	# touch it again to show we are up-to-date
		2698	aio_utime $fh, undef, undef;
		2699
		2700	close $fh
		2701	or return;
		2702
		2703	aio_rename "$runtime~", $runtime
		2704	and return;
		2705
		2706	warn "runtime file written.\n";
		2707
		2708	1
		2709	}
		2710
2330	sub emergency_save() {	2711	sub emergency_save() {
2331	my $freeze_guard = cf::freeze_mainloop;	2712	my $freeze_guard = cf::freeze_mainloop;
2332		2713
2333	warn "enter emergency perl save\n";	2714	warn "enter emergency perl save\n";
2334		2715
…		…
2349	my $map = $cf::MAP{$path} or next;	2730	my $map = $cf::MAP{$path} or next;
2350	$map->valid or next;	2731	$map->valid or next;
2351	$map->save;	2732	$map->save;
2352	}	2733	}
2353	warn "end emergency map save\n";	2734	warn "end emergency map save\n";
		2735
		2736	warn "begin emergency database checkpoint\n";
		2737	BDB::db_env_txn_checkpoint $DB_ENV;
		2738	warn "end emergency database checkpoint\n";
2354	};	2739	};
2355		2740
2356	warn "leave emergency perl save\n";	2741	warn "leave emergency perl save\n";
2357	}	2742	}
2358		2743
		2744	sub post_cleanup {
		2745	my ($make_core) = @_;
		2746
		2747	warn Carp::longmess "post_cleanup backtrace"
		2748	if $make_core;
		2749	}
		2750
2359	sub reload() {	2751	sub do_reload_perl() {
2360	# can/must only be called in main	2752	# can/must only be called in main
2361	if ($Coro::current != $Coro::main) {	2753	if ($Coro::current != $Coro::main) {
2362	warn "can only reload from main coroutine";	2754	warn "can only reload from main coroutine";
2363	return;	2755	return;
2364	}	2756	}
2365		2757
2366	warn "reloading...";	2758	warn "reloading...";
2367		2759
2368	warn "cancelling server ticker";	2760	warn "entering sync_job";
2369	$TICK_WATCHER->cancel;
2370		2761
		2762	cf::sync_job {
		2763	cf::write_runtime; # external watchdog should not bark
2371	cf::emergency_save;	2764	cf::emergency_save;
		2765	cf::write_runtime; # external watchdog should not bark
2372		2766
2373	eval {	2767	warn "syncing database to disk";
		2768	BDB::db_env_txn_checkpoint $DB_ENV;
		2769
2374	# if anything goes wrong in here, we should simply crash as we already saved	2770	# if anything goes wrong in here, we should simply crash as we already saved
2375
2376	warn "syncing database to disk";
2377	cf::db_sync;
2378		2771
2379	warn "cancelling all WF_AUTOCANCEL watchers";	2772	warn "cancelling all WF_AUTOCANCEL watchers";
2380	for (Event::all_watchers) {	2773	for (Event::all_watchers) {
2381	$_->cancel if $_->data & WF_AUTOCANCEL;	2774	$_->cancel if $_->data & WF_AUTOCANCEL;
2382	}	2775	}
2383		2776
2384	warn "flushing outstanding aio requests";	2777	warn "flushing outstanding aio requests";
2385	for (;;) {	2778	for (;;) {
		2779	BDB::flush;
2386	IO::AIO::flush;	2780	IO::AIO::flush;
2387	Coro::cede;	2781	Coro::cede;
2388	last unless IO::AIO::nreqs;	2782	last unless IO::AIO::nreqs || BDB::nreqs;
2389	warn "iterate...";	2783	warn "iterate...";
2390	}	2784	}
		2785
		2786	++$RELOAD;
2391		2787
2392	warn "cancelling all extension coros";	2788	warn "cancelling all extension coros";
2393	$_->cancel for values %EXT_CORO;	2789	$_->cancel for values %EXT_CORO;
2394	%EXT_CORO = ();	2790	%EXT_CORO = ();
2395		2791
…		…
2435	Symbol::delete_package "safe::$_"	2831	Symbol::delete_package "safe::$_"
2436	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2832	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2437		2833
2438	warn "unloading cf.pm \"a bit\"";	2834	warn "unloading cf.pm \"a bit\"";
2439	delete $INC{"cf.pm"};	2835	delete $INC{"cf.pm"};
		2836	delete $INC{"cf/pod.pm"};
2440		2837
2441	# don't, removes xs symbols, too,	2838	# don't, removes xs symbols, too,
2442	# and global variables created in xs	2839	# and global variables created in xs
2443	#Symbol::delete_package __PACKAGE__;	2840	#Symbol::delete_package __PACKAGE__;
2444		2841
…		…
2448	require cf;	2845	require cf;
2449	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2846	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2450		2847
2451	warn "loading config and database again";	2848	warn "loading config and database again";
2452	cf::cfg_load;	2849	cf::cfg_load;
2453	cf::db_load;
2454		2850
2455	warn "loading extensions";	2851	warn "loading extensions";
2456	cf::load_extensions;	2852	cf::load_extensions;
2457		2853
2458	warn "reattaching attachments to objects/players";	2854	warn "reattaching attachments to objects/players";
2459	_global_reattach;	2855	_global_reattach; # objects, sockets
2460	warn "reattaching attachments to maps";	2856	warn "reattaching attachments to maps";
2461	reattach $_ for values %MAP;	2857	reattach $_ for values %MAP;
		2858	warn "reattaching attachments to players";
		2859	reattach $_ for values %PLAYER;
2462		2860
2463	warn "restarting server ticker";	2861	warn "leaving sync_job";
2464		2862
2465	$TICK_WATCHER->start;	2863	1
2466	};	2864	} or do {
2467
2468	if ($@) {
2469	warn $@;	2865	warn $@;
2470	warn "error while reloading, exiting.";	2866	warn "error while reloading, exiting.";
2471	exit 1;	2867	exit 1;
2472	}	2868	};
2473		2869
2474	warn "reloaded";	2870	warn "reloaded";
2475	};	2871	};
2476		2872
2477	our $RELOAD_WATCHER; # used only during reload	2873	our $RELOAD_WATCHER; # used only during reload
2478		2874
		2875	sub reload_perl() {
		2876	# doing reload synchronously and two reloads happen back-to-back,
		2877	# coro crashes during coro_state_free->destroy here.
		2878
		2879	$RELOAD_WATCHER ||= Event->timer (
		2880	reentrant => 0,
		2881	after => 0,
		2882	data => WF_AUTOCANCEL,
		2883	cb => sub {
		2884	do_reload_perl;
		2885	undef $RELOAD_WATCHER;
		2886	},
		2887	);
		2888	}
		2889
2479	register_command "reload" => sub {	2890	register_command "reload" => sub {
2480	my ($who, $arg) = @_;	2891	my ($who, $arg) = @_;
2481		2892
2482	if ($who->flag (FLAG_WIZ)) {	2893	if ($who->flag (FLAG_WIZ)) {
2483	$who->message ("reloading server.");	2894	$who->message ("reloading server.");
2484		2895	async { reload_perl };
2485	# doing reload synchronously and two reloads happen back-to-back,
2486	# coro crashes during coro_state_free->destroy here.
2487
2488	$RELOAD_WATCHER ||= Event->timer (
2489	reentrant => 0,
2490	after => 0,
2491	data => WF_AUTOCANCEL,
2492	cb => sub {
2493	reload;
2494	undef $RELOAD_WATCHER;
2495	},
2496	);
2497	}	2896	}
2498	};	2897	};
2499		2898
2500	unshift @INC, $LIBDIR;	2899	unshift @INC, $LIBDIR;
2501		2900
2502	my $bug_warning = 0;	2901	my $bug_warning = 0;
2503		2902
		2903	our @WAIT_FOR_TICK;
		2904	our @WAIT_FOR_TICK_BEGIN;
		2905
		2906	sub wait_for_tick {
		2907	return unless $TICK_WATCHER->is_active;
		2908	return if $Coro::current == $Coro::main;
		2909
		2910	my $signal = new Coro::Signal;
		2911	push @WAIT_FOR_TICK, $signal;
		2912	$signal->wait;
		2913	}
		2914
		2915	sub wait_for_tick_begin {
		2916	return unless $TICK_WATCHER->is_active;
		2917	return if $Coro::current == $Coro::main;
		2918
		2919	my $signal = new Coro::Signal;
		2920	push @WAIT_FOR_TICK_BEGIN, $signal;
		2921	$signal->wait;
		2922	}
		2923
		2924	my $min = 1e6;#d#
		2925	my $avg = 10;
2504	$TICK_WATCHER = Event->timer (	2926	$TICK_WATCHER = Event->timer (
2505	reentrant => 0,	2927	reentrant => 0,
2506	parked => 1,	2928	parked => 1,
2507	prio => 0,	2929	prio => 0,
2508	at => $NEXT_TICK || $TICK,	2930	at => $NEXT_TICK || $TICK,
…		…
2512	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	2934	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2513	unless ++$bug_warning > 10;	2935	unless ++$bug_warning > 10;
2514	return;	2936	return;
2515	}	2937	}
2516		2938
2517	$NOW = Event::time;	2939	$NOW = $tick_start = Event::time;
2518		2940
2519	cf::server_tick; # one server iteration	2941	cf::server_tick; # one server iteration
		2942
		2943	0 && sync_job {#d#
		2944	for(1..10) {
		2945	my $t = Event::time;
		2946	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2947	or die;
		2948
		2949	$map->width (50);
		2950	$map->height (50);
		2951	$map->alloc;
		2952	$map->_load_objects ("/tmp/x.map", 1);
		2953	my $t = Event::time - $t;
		2954
		2955	#next unless $t < 0.0013;#d#
		2956	if ($t < $min) {
		2957	$min = $t;
		2958	}
		2959	$avg = $avg * 0.99 + $t * 0.01;
		2960	}
		2961	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2962	exit 0;
		2963	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2964	};
		2965
2520	$RUNTIME += $TICK;	2966	$RUNTIME += $TICK;
2521	$NEXT_TICK += $TICK;	2967	$NEXT_TICK += $TICK;
2522		2968
2523	$WAIT_FOR_TICK->broadcast;	2969	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2524	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2970	$NEXT_RUNTIME_WRITE = $NOW + 10;
2525		2971	Coro::async_pool {
2526	Event::sweep;	2972	write_runtime
2527	Coro::cede_notself;	2973	or warn "ERROR: unable to write runtime file: $!";
		2974	};
2528		2975	}
		2976
2529	# my $AFTER = Event::time;	2977	# my $AFTER = Event::time;
2530	# warn $AFTER - $NOW;#d#	2978	# warn $AFTER - $NOW;#d#
2531		2979
		2980	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2981	$sig->send;
		2982	}
		2983	while (my $sig = shift @WAIT_FOR_TICK) {
		2984	$sig->send;
		2985	}
		2986
		2987	$NOW = Event::time;
		2988
2532	# if we are delayed by four ticks or more, skip them all	2989	# if we are delayed by four ticks or more, skip them all
2533	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2990	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2534		2991
2535	$TICK_WATCHER->at ($NEXT_TICK);	2992	$TICK_WATCHER->at ($NEXT_TICK);
2536	$TICK_WATCHER->start;	2993	$TICK_WATCHER->start;
		2994
		2995	$LOAD = ($NOW - $tick_start) / $TICK;
		2996	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2997
		2998	_post_tick;
		2999
		3000
2537	},	3001	},
2538	);	3002	);
2539		3003
		3004	{
		3005	BDB::max_poll_time $TICK * 0.1;
		3006	$BDB_POLL_WATCHER = Event->io (
		3007	reentrant => 0,
		3008	fd => BDB::poll_fileno,
		3009	poll => 'r',
		3010	prio => 0,
		3011	data => WF_AUTOCANCEL,
		3012	cb => \&BDB::poll_cb,
		3013	);
		3014	BDB::min_parallel 8;
		3015
		3016	BDB::set_sync_prepare {
		3017	my $status;
		3018	my $current = $Coro::current;
		3019	(
		3020	sub {
		3021	$status = $!;
		3022	$current->ready; undef $current;
		3023	},
		3024	sub {
		3025	Coro::schedule while defined $current;
		3026	$! = $status;
		3027	},
		3028	)
		3029	};
		3030
		3031	unless ($DB_ENV) {
		3032	$DB_ENV = BDB::db_env_create;
		3033
		3034	cf::sync_job {
		3035	eval {
		3036	BDB::db_env_open
		3037	$DB_ENV,
		3038	$BDBDIR,
		3039	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3040	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3041	0666;
		3042
		3043	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3044
		3045	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3046	$DB_ENV->set_lk_detect;
		3047	};
		3048
		3049	cf::cleanup "db_env_open(db): $@" if $@;
		3050	};
		3051	}
		3052	}
		3053
		3054	{
		3055	IO::AIO::min_parallel 8;
		3056
		3057	undef $Coro::AIO::WATCHER;
2540	IO::AIO::max_poll_time $TICK * 0.1;	3058	IO::AIO::max_poll_time $TICK * 0.1;
2541
2542	undef $Coro::AIO::WATCHER;
2543	$AIO_POLL_WATCHER = Event->io (	3059	$AIO_POLL_WATCHER = Event->io (
2544	reentrant => 0,	3060	reentrant => 0,
		3061	data => WF_AUTOCANCEL,
2545	fd => IO::AIO::poll_fileno,	3062	fd => IO::AIO::poll_fileno,
2546	poll => 'r',	3063	poll => 'r',
2547	prio => 6,	3064	prio => 6,
2548	data => WF_AUTOCANCEL,
2549	cb => \&IO::AIO::poll_cb,	3065	cb => \&IO::AIO::poll_cb,
2550	);	3066	);
		3067	}
2551		3068
2552	$WRITE_RUNTIME_WATCHER = Event->timer (	3069	my $_log_backtrace;
2553	reentrant => 0,	3070
2554	data => WF_AUTOCANCEL,	3071	sub _log_backtrace {
2555	after => 1,	3072	my ($msg, @addr) = @_;
2556	interval => 10,	3073
2557	prio => 6, # keep it lowest so it acts like a watchdog	3074	$msg =~ s/\n//;
2558	cb => Coro::unblock_sub {	3075
2559	write_runtime	3076	# limit the # of concurrent backtraces
2560	or warn "ERROR: unable to write runtime file: $!";	3077	if ($_log_backtrace < 2) {
		3078	++$_log_backtrace;
		3079	async {
		3080	my @bt = fork_call {
		3081	@addr = map { sprintf "%x", $_ } @addr;
		3082	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3083	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3084	or die "addr2line: $!";
		3085
		3086	my @funcs;
		3087	my @res = <$fh>;
		3088	chomp for @res;
		3089	while (@res) {
		3090	my ($func, $line) = splice @res, 0, 2, ();
		3091	push @funcs, "[$func] $line";
		3092	}
		3093
		3094	@funcs
		3095	};
		3096
		3097	LOG llevInfo, "[ABT] $msg\n";
		3098	LOG llevInfo, "[ABT] $_\n" for @bt;
		3099	--$_log_backtrace;
		3100	};
		3101	} else {
		3102	LOG llevInfo, "[ABT] $msg\n";
		3103	LOG llevInfo, "[ABT] [suppressed]\n";
2561	},	3104	}
2562	);	3105	}
		3106
		3107	# load additional modules
		3108	use cf::pod;
2563		3109
2564	END { cf::emergency_save }	3110	END { cf::emergency_save }
2565		3111
2566	1	3112	1
2567		3113

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