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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.199 by root, Mon Jan 29 14:46:01 2007 UTC vs.
Revision 1.281 by root, Sat Jun 16 23:22:59 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";
…		…
802	or return;	998	or return;
803	$av = eval { (Storable::thaw $av)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
804	}	1000	}
805		1001
806	warn sprintf "loading %s (%d)\n",	1002	warn sprintf "loading %s (%d)\n",
807	$filename, length $data, scalar @{$av || []};#d#	1003	$filename, length $data, scalar @{$av || []};
808	return ($data, $av);	1004	return ($data, $av);
809	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
810		1012
811	#############################################################################	1013	#############################################################################
812	# command handling &c	1014	# command handling &c
813		1015
814	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
827	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
828	}	1030	}
829		1031
830	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
831		1033
832	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.
833		1035
834	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
835	called.	1037	called.
836		1038
837	=cut	1039	=cut
…		…
872		1074
873	cf::override;	1075	cf::override;
874	},	1076	},
875	);	1077	);
876		1078
877	sub load_extension {
878	my ($path) = @_;
879
880	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
881	my $base = $1;
882	my $pkg = $1;
883	$pkg =~ s/[^[:word:]]/_/g;
884	$pkg = "ext::$pkg";
885
886	warn "... loading '$path' into '$pkg'\n";
887
888	open my $fh, "<:utf8", $path
889	or die "$path: $!";
890
891	my $source =
892	"package $pkg; use strict; use utf8;\n"
893	. "#line 1 \"$path\"\n{\n"
894	. (do { local $/; <$fh> })
895	. "\n};\n1";
896
897	unless (eval $source) {
898	my $msg = $@ ? "$path: $@\n"
899	: "extension disabled.\n";
900	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
901	warn $@;
902	warn "mandatory extension failed to load, exiting.\n";
903	exit 1;
904	}
905	die $@;
906	}
907
908	push @EXTS, $pkg;
909	}
910
911	sub load_extensions {	1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
912	for my $ext (<$LIBDIR/*.ext>) {	1083	for my $path (<$LIBDIR/*.ext>) {
913	next unless -r $ext;	1084	next unless -r $path;
914	eval {	1085
915	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;
916	1	1143	}
917	} or warn "$ext not loaded: $@";	1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
918	}	1149	};
919	}	1150	}
920		1151
921	#############################################################################	1152	#############################################################################
922		1153
		1154	=back
		1155
923	=head2 CORE EXTENSIONS	1156	=head2 CORE EXTENSIONS
924		1157
925	Functions and methods that extend core crossfire objects.	1158	Functions and methods that extend core crossfire objects.
926		1159
927	=cut	1160	=cut
…		…
939	Returns the given player object, loading it if necessary (might block).	1172	Returns the given player object, loading it if necessary (might block).
940		1173
941	=cut	1174	=cut
942		1175
943	sub playerdir($) {	1176	sub playerdir($) {
944	cf::localdir	1177	"$PLAYERDIR/"
945	. "/"
946	. cf::playerdir
947	. "/"
948	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1178	. (ref $_[0] ? $_[0]->ob->name : $_[0])
949	}	1179	}
950		1180
951	sub path($) {	1181	sub path($) {
952	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1182	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
953		1183
954	(playerdir $login) . "/$login.pl"	1184	(playerdir $login) . "/playerdata"
955	}	1185	}
956		1186
957	sub find_active($) {	1187	sub find_active($) {
958	$cf::PLAYER{$_[0]}	1188	$cf::PLAYER{$_[0]}
959	and $cf::PLAYER{$_[0]}->active	1189	and $cf::PLAYER{$_[0]}->active
…		…
972	my $login = $_[0];	1202	my $login = $_[0];
973		1203
974	my $guard = cf::lock_acquire "user_find:$login";	1204	my $guard = cf::lock_acquire "user_find:$login";
975		1205
976	$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
977	my $pl = load_pl path $login	1214	my $pl = load_pl path $login
978	or return;	1215	or return;
979	$cf::PLAYER{$login} = $pl	1216	$cf::PLAYER{$login} = $pl
980	}	1217	}
981	}	1218	}
…		…
1018		1255
1019	=cut	1256	=cut
1020		1257
1021	sub quit_character {	1258	sub quit_character {
1022	my ($pl) = @_;	1259	my ($pl) = @_;
		1260
		1261	my $name = $pl->ob->name;
1023		1262
1024	$pl->{deny_save} = 1;	1263	$pl->{deny_save} = 1;
1025	$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
1026		1265
1027	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1266	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1032	my $path = playerdir $pl;	1271	my $path = playerdir $pl;
1033	my $temp = "$path~$cf::RUNTIME~deleting~";	1272	my $temp = "$path~$cf::RUNTIME~deleting~";
1034	aio_rename $path, $temp;	1273	aio_rename $path, $temp;
1035	delete $cf::PLAYER{$pl->ob->name};	1274	delete $cf::PLAYER{$pl->ob->name};
1036	$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
1037	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;
1038	}	1297	}
1039		1298
1040	=item cf::player::list_logins	1299	=item cf::player::list_logins
1041		1300
1042	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
1043	while and may block, so not sync_job-capable, ever.	1302	while and may block, so not sync_job-capable, ever.
1044		1303
1045	=cut	1304	=cut
1046		1305
1047	sub list_logins {	1306	sub list_logins {
1048	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1307	my $dirs = aio_readdir $PLAYERDIR
1049	or return [];	1308	or return [];
1050		1309
1051	my @logins;	1310	my @logins;
1052		1311
1053	for my $login (@$dirs) {	1312	for my $login (@$dirs) {
…		…
1070	=cut	1329	=cut
1071		1330
1072	sub maps($) {	1331	sub maps($) {
1073	my ($pl) = @_;	1332	my ($pl) = @_;
1074		1333
		1334	$pl = ref $pl ? $pl->ob->name : $pl;
		1335
1075	my $files = aio_readdir playerdir $pl	1336	my $files = aio_readdir playerdir $pl
1076	or return;	1337	or return;
1077		1338
1078	my @paths;	1339	my @paths;
1079		1340
1080	for (@$files) {	1341	for (@$files) {
1081	utf8::decode $_;	1342	utf8::decode $_;
1082	next if /\.(?:pl|pst)$/;	1343	next if /\.(?:pl|pst)$/;
1083	next unless /^$PATH_SEP/o;	1344	next unless /^$PATH_SEP/o;
1084		1345
1085	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;	1346	push @paths, cf::map::normalise "~$pl/$_";
1086	}	1347	}
1087		1348
1088	\@paths	1349	\@paths
1089	}	1350	}
1090		1351
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1352	=item $player->ext_reply ($msgid, %msg)
1092		1353
1093	Sends an ext reply to the player.	1354	Sends an ext reply to the player.
1094		1355
1095	=cut	1356	=cut
1096		1357
1097	sub ext_reply($$$%) {	1358	sub ext_reply($$%) {
1098	my ($self, $id, %msg) = @_;	1359	my ($self, $id, %msg) = @_;
1099		1360
1100	$msg{msgid} = $id;	1361	$msg{msgid} = $id;
1101		1362
1102	$self->send ("ext " . cf::to_json \%msg);	1363	$self->send ("ext " . cf::to_json \%msg);
1103	}	1364	}
1104		1365
1105	package cf;	1366	=item $player->ext_event ($type, %msg)
		1367
		1368	Sends an ext event to the client.
		1369
		1370	=cut
		1371
		1372	sub ext_event($$%) {
		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	$match
		1405	}
1106		1406
1107	=back	1407	=back
1108
1109		1408
1110	=head3 cf::map	1409	=head3 cf::map
1111		1410
1112	=over 4	1411	=over 4
1113		1412
…		…
1168	my ($self, $merge) = @_;	1467	my ($self, $merge) = @_;
1169		1468
1170	# we have to keep some variables in memory intact	1469	# we have to keep some variables in memory intact
1171	local $self->{path};	1470	local $self->{path};
1172	local $self->{load_path};	1471	local $self->{load_path};
1173	local $self->{deny_save};
1174	local $self->{deny_reset};
1175		1472
1176	$self->SUPER::thawer_merge ($merge);	1473	$self->SUPER::thawer_merge ($merge);
1177	}	1474	}
1178		1475
1179	sub normalise {	1476	sub normalise {
…		…
1251		1548
1252	# the original (read-only) location	1549	# the original (read-only) location
1253	sub load_path {	1550	sub load_path {
1254	my ($self) = @_;	1551	my ($self) = @_;
1255		1552
1256	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1553	"$MAPDIR/$self->{path}.map"
1257	}	1554	}
1258		1555
1259	# the temporary/swap location	1556	# the temporary/swap location
1260	sub save_path {	1557	sub save_path {
1261	my ($self) = @_;	1558	my ($self) = @_;
1262		1559
1263	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1560	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1264	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1561	"$TMPDIR/$path.map"
1265	}	1562	}
1266		1563
1267	# the unique path, undef == no special unique path	1564	# the unique path, undef == no special unique path
1268	sub uniq_path {	1565	sub uniq_path {
1269	my ($self) = @_;	1566	my ($self) = @_;
1270		1567
1271	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1568	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1272	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1569	"$UNIQUEDIR/$path"
1273	}	1570	}
1274		1571
1275	# and all this just because we cannot iterate over	1572	# and all this just because we cannot iterate over
1276	# all maps in C++...	1573	# all maps in C++...
1277	sub change_all_map_light {	1574	sub change_all_map_light {
…		…
1279		1576
1280	$_->change_map_light ($change)	1577	$_->change_map_light ($change)
1281	for grep $_->outdoor, values %cf::MAP;	1578	for grep $_->outdoor, values %cf::MAP;
1282	}	1579	}
1283		1580
		1581	sub decay_objects {
		1582	my ($self) = @_;
		1583
		1584	return if $self->{deny_reset};
		1585
		1586	$self->do_decay_objects;
		1587	}
		1588
1284	sub unlink_save {	1589	sub unlink_save {
1285	my ($self) = @_;	1590	my ($self) = @_;
1286		1591
1287	utf8::encode (my $save = $self->save_path);	1592	utf8::encode (my $save = $self->save_path);
1288	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1593	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1291		1596
1292	sub load_header_from($) {	1597	sub load_header_from($) {
1293	my ($self, $path) = @_;	1598	my ($self, $path) = @_;
1294		1599
1295	utf8::encode $path;	1600	utf8::encode $path;
1296	aio_open $path, O_RDONLY, 0	1601	#aio_open $path, O_RDONLY, 0
1297	or return;	1602	# or return;
1298		1603
1299	$self->_load_header ($path)	1604	$self->_load_header ($path)
1300	or return;	1605	or return;
1301		1606
1302	$self->{load_path} = $path;	1607	$self->{load_path} = $path;
…		…
1344	$self->load_header_orig	1649	$self->load_header_orig
1345	or return;	1650	or return;
1346	$self->prepare_orig;	1651	$self->prepare_orig;
1347	}	1652	}
1348		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
1349	1	1660	1
1350	}	1661	}
1351		1662
1352	sub find;	1663	sub find;
1353	sub find {	1664	sub find {
…		…
1365	$map->{last_save} = $cf::RUNTIME;	1676	$map->{last_save} = $cf::RUNTIME;
1366		1677
1367	$map->load_header	1678	$map->load_header
1368	or return;	1679	or return;
1369		1680
1370	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1681	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1371	# doing this can freeze the server in a sync job, obviously	1682	# doing this can freeze the server in a sync job, obviously
1372	#$cf::WAIT_FOR_TICK->wait;	1683	#$cf::WAIT_FOR_TICK->wait;
1373	$map->reset;	1684	$map->reset;
1374	undef $guard;	1685	undef $guard;
1375	return find $path;	1686	return find $path;
…		…
1386	my ($self) = @_;	1697	my ($self) = @_;
1387		1698
1388	local $self->{deny_reset} = 1; # loading can take a long time	1699	local $self->{deny_reset} = 1; # loading can take a long time
1389		1700
1390	my $path = $self->{path};	1701	my $path = $self->{path};
		1702
		1703	{
1391	my $guard = cf::lock_acquire "map_load:$path";	1704	my $guard = cf::lock_acquire "map_load:$path";
1392		1705
1393	return if $self->in_memory != cf::MAP_SWAPPED;	1706	return if $self->in_memory != cf::MAP_SWAPPED;
1394		1707
1395	$self->in_memory (cf::MAP_LOADING);	1708	$self->in_memory (cf::MAP_LOADING);
1396		1709
1397	$self->alloc;	1710	$self->alloc;
1398		1711
1399	$self->pre_load;	1712	$self->pre_load;
1400
1401	$self->_load_objects ($self->{load_path}, 1)
1402	or return;
1403
1404	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1405	if delete $self->{load_original};
1406
1407	if (my $uniq = $self->uniq_path) {
1408	utf8::encode $uniq;
1409	if (aio_open $uniq, O_RDONLY, 0) {
1410	$self->clear_unique_items;
1411	$self->_load_objects ($uniq, 0);
1412	}
1413	}
1414
1415	Coro::cede;
1416
1417	# now do the right thing for maps
1418	$self->link_multipart_objects;
1419
1420	unless ($self->{deny_activate}) {
1421	$self->decay_objects;
1422	$self->fix_auto_apply;
1423	$self->update_buttons;
1424	Coro::cede;	1713	Coro::cede;
1425	$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;
1426	$self->difficulty ($self->estimate_difficulty)	1732	$self->difficulty ($self->estimate_difficulty)
1427	unless $self->difficulty;	1733	unless $self->difficulty;
1428	Coro::cede;	1734	Coro::cede;
		1735
		1736	unless ($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;
1429	$self->activate;	1743	$self->activate;
		1744	}
		1745
		1746	$self->in_memory (cf::MAP_IN_MEMORY);
1430	}	1747	}
1431		1748
1432	$self->post_load;	1749	$self->post_load;
1433
1434	$self->in_memory (cf::MAP_IN_MEMORY);
1435	}	1750	}
1436		1751
1437	sub customise_for {	1752	sub customise_for {
1438	my ($self, $ob) = @_;	1753	my ($self, $ob) = @_;
1439		1754
1440	return find "~" . $ob->name . "/" . $self->{path}	1755	return find "~" . $ob->name . "/" . $self->{path}
1441	if $self->per_player;	1756	if $self->per_player;
		1757
		1758	# return find "?party/" . $ob->name . "/" . $self->{path}
		1759	# if $self->per_party;
1442		1760
1443	$self	1761	$self
1444	}	1762	}
1445		1763
1446	# find and load all maps in the 3x3 area around a map	1764	# find and load all maps in the 3x3 area around a map
…		…
1557		1875
1558	sub reset_at {	1876	sub reset_at {
1559	my ($self) = @_;	1877	my ($self) = @_;
1560		1878
1561	# TODO: safety, remove and allow resettable per-player maps	1879	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->isa ("ext::map_per_player");#d#
1563	return 1e99 if $self->{deny_reset};	1880	return 1e99 if $self->{deny_reset};
1564		1881
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1882	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1883	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		1884
…		…
1578	my ($self) = @_;	1895	my ($self) = @_;
1579		1896
1580	my $lock = cf::lock_acquire "map_data:$self->{path}";	1897	my $lock = cf::lock_acquire "map_data:$self->{path}";
1581		1898
1582	return if $self->players;	1899	return if $self->players;
1583	return if $self->isa ("ext::map_per_player");#d#
1584		1900
1585	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	}
1586		1912
1587	delete $cf::MAP{$self->path};	1913	delete $cf::MAP{$self->path};
1588		1914
1589	$self->in_memory (cf::MAP_SWAPPED);
1590	$self->clear;	1915	$self->clear;
1591		1916
1592	$_->clear_links_to ($self) for values %cf::MAP;	1917	$_->clear_links_to ($self) for values %cf::MAP;
1593		1918
1594	$self->unlink_save;	1919	$self->unlink_save;
…		…
1613	$cf::MAP{$self->path} = $self;	1938	$cf::MAP{$self->path} = $self;
1614		1939
1615	$self->reset; # polite request, might not happen	1940	$self->reset; # polite request, might not happen
1616	}	1941	}
1617		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
1618	=item cf::map::unique_maps	1979	=item cf::map::unique_maps
1619		1980
1620	Returns an arrayref of paths of all shared maps that have	1981	Returns an arrayref of paths of all shared maps that have
1621	instantiated unique items. May block.	1982	instantiated unique items. May block.
1622		1983
1623	=cut	1984	=cut
1624		1985
1625	sub unique_maps() {	1986	sub unique_maps() {
1626	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1987	[
1627	or return;	1988	map {
1628
1629	my @paths;
1630
1631	for (@$files) {
1632	utf8::decode $_;	1989	utf8::decode $_;
1633	next if /\.pst$/;	1990	/\.map$/
1634	next unless /^$PATH_SEP/o;	1991	? normalise $_
1635		1992	: ()
1636	push @paths, cf::map::normalise $_;	1993	} @{ aio_readdir $UNIQUEDIR or [] }
1637	}	1994	]
1638
1639	\@paths
1640	}	1995	}
1641		1996
1642	package cf;	1997	package cf;
1643		1998
1644	=back	1999	=back
…		…
1750	$self->deactivate_recursive;	2105	$self->deactivate_recursive;
1751		2106
1752	return if UNIVERSAL::isa $self->map, "ext::map_link";	2107	return if UNIVERSAL::isa $self->map, "ext::map_link";
1753		2108
1754	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2109	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1755	if $self->map;	2110	if $self->map && $self->map->{path} ne "{link}";
1756		2111
1757	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2112	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1758	}	2113	}
1759		2114
1760	sub cf::object::player::leave_link {	2115	sub cf::object::player::leave_link {
1761	my ($self, $map, $x, $y) = @_;	2116	my ($self, $map, $x, $y) = @_;
		2117
		2118	return unless $self->contr->active;
1762		2119
1763	my $link_pos = delete $self->{_link_pos};	2120	my $link_pos = delete $self->{_link_pos};
1764		2121
1765	unless ($map) {	2122	unless ($map) {
1766	# restore original map position	2123	# restore original map position
…		…
1784	$map->load;	2141	$map->load;
1785	$map->load_diag;	2142	$map->load_diag;
1786		2143
1787	return unless $self->contr->active;	2144	return unless $self->contr->active;
1788	$self->activate_recursive;	2145	$self->activate_recursive;
		2146
		2147	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1789	$self->enter_map ($map, $x, $y);	2148	$self->enter_map ($map, $x, $y);
1790	}	2149	}
1791		2150
1792	cf::player->attach (
1793	on_logout => sub {
1794	my ($pl) = @_;
1795
1796	# abort map switching before logout
1797	if ($pl->ob->{_link_pos}) {
1798	cf::sync_job {
1799	$pl->ob->leave_link
1800	};
1801	}
1802	},
1803	on_login => sub {
1804	my ($pl) = @_;
1805
1806	# try to abort aborted map switching on player login :)
1807	# should happen only on crashes
1808	if ($pl->ob->{_link_pos}) {
1809	$pl->ob->enter_link;
1810	(async {
1811	# we need this sleep as the login has a concurrent enter_exit running
1812	# and this sleep increases chances of the player not ending up in scorn
1813	$pl->ob->reply (undef,
1814	"There was an internal problem at your last logout, "
1815	. "the server will try to bring you to your intended destination in a second.",
1816	cf::NDI_RED);
1817	Coro::Timer::sleep 1;
1818	$pl->ob->leave_link;
1819	})->prio (2);
1820	}
1821	},
1822	);
1823
1824	=item $player_object->goto ($path, $x, $y)	2151	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1825		2152
		2153	Moves the player to the given map-path and coordinates by first freezing
		2154	her, loading and preparing them map, calling the provided $check callback
		2155	that has to return the map if sucecssful, and then unfreezes the player on
		2156	the new (success) or old (failed) map position.
		2157
1826	=cut	2158	=cut
		2159
		2160	our $GOTOGEN;
1827		2161
1828	sub cf::object::player::goto {	2162	sub cf::object::player::goto {
1829	my ($self, $path, $x, $y) = @_;	2163	my ($self, $path, $x, $y, $check) = @_;
		2164
		2165	# do generation counting so two concurrent goto's will be executed in-order
		2166	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1830		2167
1831	$self->enter_link;	2168	$self->enter_link;
1832		2169
1833	(async {	2170	(async {
1834	my $map = eval {	2171	my $map = eval {
1835	my $map = cf::map::find $path;	2172	my $map = cf::map::find $path;
		2173
		2174	if ($map) {
1836	$map = $map->customise_for ($self) if $map;	2175	$map = $map->customise_for ($self);
		2176	$map = $check->($map) if $check && $map;
		2177	} else {
		2178	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2179	}
		2180
1837	$map	2181	$map
		2182	};
		2183
		2184	if ($@) {
		2185	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2186	LOG llevError | logBacktrace, Carp::longmess $@;
1838	} or	2187	}
1839	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1840		2188
		2189	if ($gen == $self->{_goto_generation}) {
		2190	delete $self->{_goto_generation};
1841	$self->leave_link ($map, $x, $y);	2191	$self->leave_link ($map, $x, $y);
		2192	}
1842	})->prio (1);	2193	})->prio (1);
1843	}	2194	}
1844		2195
1845	=item $player_object->enter_exit ($exit_object)	2196	=item $player_object->enter_exit ($exit_object)
1846		2197
…		…
1885		2236
1886	$rmp->{random_seed} ||= $exit->random_seed;	2237	$rmp->{random_seed} ||= $exit->random_seed;
1887		2238
1888	my $data = cf::to_json $rmp;	2239	my $data = cf::to_json $rmp;
1889	my $md5 = Digest::MD5::md5_hex $data;	2240	my $md5 = Digest::MD5::md5_hex $data;
1890	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2241	my $meta = "$RANDOMDIR/$md5.meta";
1891		2242
1892	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2243	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1893	aio_write $fh, 0, (length $data), $data, 0;	2244	aio_write $fh, 0, (length $data), $data, 0;
1894	undef $fh;	2245	undef $fh;
1895	aio_rename "$meta~", $meta;	2246	aio_rename "$meta~", $meta;
…		…
1904		2255
1905	return unless $self->type == cf::PLAYER;	2256	return unless $self->type == cf::PLAYER;
1906		2257
1907	if ($exit->slaying eq "/!") {	2258	if ($exit->slaying eq "/!") {
1908	#TODO: this should de-fi-ni-te-ly not be a sync-job	2259	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2260	# the problem is that $exit might not survive long enough
		2261	# so it needs to be done right now, right here
1909	cf::sync_job { prepare_random_map $exit };	2262	cf::sync_job { prepare_random_map $exit };
1910	}	2263	}
1911		2264
1912	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2265	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1913	my $hp = $exit->stats->hp;	2266	my $hp = $exit->stats->hp;
…		…
1921	$self->goto ($slaying, $hp, $sp);	2274	$self->goto ($slaying, $hp, $sp);
1922		2275
1923	1;	2276	1;
1924	}) {	2277	}) {
1925	$self->message ("Something went wrong deep within the crossfire server. "	2278	$self->message ("Something went wrong deep within the crossfire server. "
1926	. "I'll try to bring you back to the map you were before. "	2279	. "I'll try to bring you back to the map you were before. "
1927	. "Please report this to the dungeon master!",	2280	. "Please report this to the dungeon master!",
1928	cf::NDI_UNIQUE | cf::NDI_RED);	2281	cf::NDI_UNIQUE | cf::NDI_RED);
1929		2282
1930	warn "ERROR in enter_exit: $@";	2283	warn "ERROR in enter_exit: $@";
1931	$self->leave_link;	2284	$self->leave_link;
1932	}	2285	}
1933	})->prio (1);	2286	})->prio (1);
…		…
1946		2299
1947	sub cf::client::send_drawinfo {	2300	sub cf::client::send_drawinfo {
1948	my ($self, $text, $flags) = @_;	2301	my ($self, $text, $flags) = @_;
1949		2302
1950	utf8::encode $text;	2303	utf8::encode $text;
1951	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2304	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1952	}	2305	}
1953		2306
		2307	=item $client->ext_event ($type, %msg)
		2308
		2309	Sends an exti event to the client.
		2310
		2311	=cut
		2312
		2313	sub cf::client::ext_event($$%) {
		2314	my ($self, $type, %msg) = @_;
		2315
		2316	$msg{msgtype} = "event_$type";
		2317	$self->send_packet ("ext " . cf::to_json \%msg);
		2318	}
1954		2319
1955	=item $success = $client->query ($flags, "text", \&cb)	2320	=item $success = $client->query ($flags, "text", \&cb)
1956		2321
1957	Queues a query to the client, calling the given callback with	2322	Queues a query to the client, calling the given callback with
1958	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2323	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1987	# get handled first	2352	# get handled first
1988	my $queue = delete $ns->{query_queue}	2353	my $queue = delete $ns->{query_queue}
1989	or return; # be conservative, not sure how that can happen, but we saw a crash here	2354	or return; # be conservative, not sure how that can happen, but we saw a crash here
1990		2355
1991	(shift @$queue)->[1]->($msg);	2356	(shift @$queue)->[1]->($msg);
		2357	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1992		2358
1993	push @{ $ns->{query_queue} }, @$queue;	2359	push @{ $ns->{query_queue} }, @$queue;
1994		2360
1995	if (@{ $ns->{query_queue} } == @$queue) {	2361	if (@{ $ns->{query_queue} } == @$queue) {
1996	if (@$queue) {	2362	if (@$queue) {
…		…
2054		2420
2055	# here we export the classes and methods available to script code	2421	# here we export the classes and methods available to script code
2056		2422
2057	=pod	2423	=pod
2058		2424
2059	The following fucntions and emthods are available within a safe environment:	2425	The following functions and methods are available within a safe environment:
2060		2426
2061	cf::object contr pay_amount pay_player map	2427	cf::object contr pay_amount pay_player map
2062	cf::object::player player	2428	cf::object::player player
2063	cf::player peaceful	2429	cf::player peaceful
2064	cf::map trigger	2430	cf::map trigger
…		…
2145	=back	2511	=back
2146		2512
2147	=cut	2513	=cut
2148		2514
2149	#############################################################################	2515	#############################################################################
		2516	# the server's init and main functions
2150		2517
2151	=head2 EXTENSION DATABASE SUPPORT	2518	sub load_facedata($) {
		2519	my ($path) = @_;
2152		2520
2153	Crossfire maintains a very simple database for extension use. It can	2521	warn "loading facedata from $path\n";
2154	currently store anything that can be serialised using Storable, which
2155	excludes objects.
2156		2522
2157	The parameter C<$family> should best start with the name of the extension	2523	my $facedata;
2158	using it, it should be unique.	2524	0 < aio_load $path, $facedata
		2525	or die "$path: $!";
2159		2526
2160	=over 4	2527	$facedata = Coro::Storable::thaw $facedata;
2161		2528
2162	=item $hashref = cf::db_get $family	2529	$facedata->{version} == 2
		2530	or cf::cleanup "$path: version mismatch, cannot proceed.";
2163		2531
2164	Return a hashref for use by the extension C<$family>, which can be
2165	modified. After modifications, you have to call C<cf::db_dirty> or
2166	C<cf::db_sync>.
2167
2168	=item $value = cf::db_get $family => $key
2169
2170	Returns a single value from the database
2171
2172	=item cf::db_put $family => $hashref
2173
2174	Stores the given family hashref into the database. Updates are delayed, if
2175	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2176
2177	=item cf::db_put $family => $key => $value
2178
2179	Stores the given C<$value> in the family hash. Updates are delayed, if you
2180	want the data to be synced to disk immediately, use C<cf::db_sync>.
2181
2182	=item cf::db_dirty
2183
2184	Marks the database as dirty, to be updated at a later time.
2185
2186	=item cf::db_sync
2187
2188	Immediately write the database to disk I<if it is dirty>.
2189
2190	=cut
2191
2192	our $DB;
2193
2194	{
2195	my $path = cf::localdir . "/database.pst";
2196
2197	sub db_load() {
2198	$DB = stat $path ? Storable::retrieve $path : { };
2199	}	2532	{
		2533	my $faces = $facedata->{faceinfo};
2200		2534
2201	my $pid;	2535	while (my ($face, $info) = each %$faces) {
2202		2536	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2203	sub db_save() {	2537	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2204	waitpid $pid, 0 if $pid;	2538	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2205	if (0 == ($pid = fork)) {	2539	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2206	$DB->{_meta}{version} = 1;	2540	Coro::cede;
2207	Storable::nstore $DB, "$path~";
2208	rename "$path~", $path;
2209	cf::_exit 0 if defined $pid;
2210	}
2211	}
2212
2213	my $dirty;
2214
2215	sub db_sync() {
2216	db_save if $dirty;
2217	undef $dirty;
2218	}
2219
2220	my $idle = Event->idle (
2221	reentrant => 0,
2222	min => 10,
2223	max => 20,
2224	repeat => 0,
2225	data => WF_AUTOCANCEL,
2226	cb => \&db_sync,
2227	);
2228
2229	sub db_dirty() {
2230	$dirty = 1;
2231	$idle->start;
2232	}
2233
2234	sub db_get($;$) {
2235	@_ >= 2
2236	? $DB->{$_[0]}{$_[1]}
2237	: ($DB->{$_[0]} ||= { })
2238	}
2239
2240	sub db_put($$;$) {
2241	if (@_ >= 3) {
2242	$DB->{$_[0]}{$_[1]} = $_[2];
2243	} else {
2244	$DB->{$_[0]} = $_[1];
2245	}
2246	db_dirty;
2247	}
2248
2249	cf::global->attach (
2250	prio => 10000,
2251	on_cleanup => sub {
2252	db_sync;
2253	},	2541	}
2254	);
2255	}
2256		2542
2257	#############################################################################	2543	while (my ($face, $info) = each %$faces) {
2258	# the server's main()	2544	next unless $info->{smooth};
		2545	my $idx = cf::face::find $face
		2546	or next;
		2547	if (my $smooth = cf::face::find $info->{smooth}) {
		2548	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2549	} else {
		2550	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2551	}
		2552	Coro::cede;
		2553	}
		2554	}
		2555
		2556	{
		2557	my $anims = $facedata->{animinfo};
		2558
		2559	while (my ($anim, $info) = each %$anims) {
		2560	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2561	Coro::cede;
		2562	}
		2563
		2564	cf::anim::invalidate_all; # d'oh
		2565	}
		2566
		2567	1
		2568	}
		2569
		2570	sub reload_regions {
		2571	load_resource_file "$MAPDIR/regions"
		2572	or die "unable to load regions file\n";
		2573	}
		2574
		2575	sub reload_facedata {
		2576	load_facedata "$DATADIR/facedata"
		2577	or die "unable to load facedata\n";
		2578	}
		2579
		2580	sub reload_archetypes {
		2581	load_resource_file "$DATADIR/archetypes"
		2582	or die "unable to load archetypes\n";
		2583	}
		2584
		2585	sub reload_treasures {
		2586	load_resource_file "$DATADIR/treasures"
		2587	or die "unable to load treasurelists\n";
		2588	}
		2589
		2590	sub reload_resources {
		2591	warn "reloading resource files...\n";
		2592
		2593	reload_regions;
		2594	reload_facedata;
		2595	#reload_archetypes;#d#
		2596	reload_archetypes;
		2597	reload_treasures;
		2598
		2599	warn "finished reloading resource files\n";
		2600	}
		2601
		2602	sub init {
		2603	reload_resources;
		2604	}
2259		2605
2260	sub cfg_load {	2606	sub cfg_load {
2261	open my $fh, "<:utf8", cf::confdir . "/config"	2607	open my $fh, "<:utf8", "$CONFDIR/config"
2262	or return;	2608	or return;
2263		2609
2264	local $/;	2610	local $/;
2265	*CFG = YAML::Syck::Load <$fh>;	2611	*CFG = YAML::Syck::Load <$fh>;
2266		2612
…		…
2286	Event::one_event;	2632	Event::one_event;
2287	})->prio (Coro::PRIO_MAX);	2633	})->prio (Coro::PRIO_MAX);
2288	};	2634	};
2289		2635
2290	cfg_load;	2636	cfg_load;
2291	db_load;	2637	db_init;
2292	load_extensions;	2638	load_extensions;
2293		2639
2294	$TICK_WATCHER->start;	2640	$TICK_WATCHER->start;
2295	Event::loop;	2641	Event::loop;
2296	}	2642	}
…		…
2311	},	2657	},
2312	);	2658	);
2313	}	2659	}
2314	}	2660	}
2315		2661
		2662	sub write_runtime {
		2663	my $runtime = "$LOCALDIR/runtime";
		2664
		2665	# first touch the runtime file to show we are still running:
		2666	# the fsync below can take a very very long time.
		2667
		2668	IO::AIO::aio_utime $runtime, undef, undef;
		2669
		2670	my $guard = cf::lock_acquire "write_runtime";
		2671
		2672	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2673	or return;
		2674
		2675	my $value = $cf::RUNTIME + 90 + 10;
		2676	# 10 is the runtime save interval, for a monotonic clock
		2677	# 60 allows for the watchdog to kill the server.
		2678
		2679	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2680	and return;
		2681
		2682	# always fsync - this file is important
		2683	aio_fsync $fh
		2684	and return;
		2685
		2686	# touch it again to show we are up-to-date
		2687	aio_utime $fh, undef, undef;
		2688
		2689	close $fh
		2690	or return;
		2691
		2692	aio_rename "$runtime~", $runtime
		2693	and return;
		2694
		2695	warn "runtime file written.\n";
		2696
		2697	1
		2698	}
		2699
2316	sub emergency_save() {	2700	sub emergency_save() {
2317	my $freeze_guard = cf::freeze_mainloop;	2701	my $freeze_guard = cf::freeze_mainloop;
2318		2702
2319	warn "enter emergency perl save\n";	2703	warn "enter emergency perl save\n";
2320		2704
…		…
2335	my $map = $cf::MAP{$path} or next;	2719	my $map = $cf::MAP{$path} or next;
2336	$map->valid or next;	2720	$map->valid or next;
2337	$map->save;	2721	$map->save;
2338	}	2722	}
2339	warn "end emergency map save\n";	2723	warn "end emergency map save\n";
		2724
		2725	warn "begin emergency database checkpoint\n";
		2726	BDB::db_env_txn_checkpoint $DB_ENV;
		2727	warn "end emergency database checkpoint\n";
2340	};	2728	};
2341		2729
2342	warn "leave emergency perl save\n";	2730	warn "leave emergency perl save\n";
2343	}	2731	}
2344		2732
		2733	sub post_cleanup {
		2734	my ($make_core) = @_;
		2735
		2736	warn Carp::longmess "post_cleanup backtrace"
		2737	if $make_core;
		2738	}
		2739
2345	sub reload() {	2740	sub do_reload_perl() {
2346	# can/must only be called in main	2741	# can/must only be called in main
2347	if ($Coro::current != $Coro::main) {	2742	if ($Coro::current != $Coro::main) {
2348	warn "can only reload from main coroutine";	2743	warn "can only reload from main coroutine";
2349	return;	2744	return;
2350	}	2745	}
2351		2746
2352	warn "reloading...";	2747	warn "reloading...";
2353		2748
2354	warn "cancelling server ticker";	2749	warn "entering sync_job";
2355	$TICK_WATCHER->cancel;
2356		2750
		2751	cf::sync_job {
		2752	cf::write_runtime; # external watchdog should not bark
2357	cf::emergency_save;	2753	cf::emergency_save;
		2754	cf::write_runtime; # external watchdog should not bark
2358		2755
2359	eval {	2756	warn "syncing database to disk";
		2757	BDB::db_env_txn_checkpoint $DB_ENV;
		2758
2360	# if anything goes wrong in here, we should simply crash as we already saved	2759	# if anything goes wrong in here, we should simply crash as we already saved
2361
2362	warn "syncing database to disk";
2363	cf::db_sync;
2364		2760
2365	warn "cancelling all WF_AUTOCANCEL watchers";	2761	warn "cancelling all WF_AUTOCANCEL watchers";
2366	for (Event::all_watchers) {	2762	for (Event::all_watchers) {
2367	$_->cancel if $_->data & WF_AUTOCANCEL;	2763	$_->cancel if $_->data & WF_AUTOCANCEL;
2368	}	2764	}
2369		2765
2370	warn "flushing outstanding aio requests";	2766	warn "flushing outstanding aio requests";
2371	for (;;) {	2767	for (;;) {
		2768	BDB::flush;
2372	IO::AIO::flush;	2769	IO::AIO::flush;
2373	Coro::cede;	2770	Coro::cede;
2374	last unless IO::AIO::nreqs;	2771	last unless IO::AIO::nreqs || BDB::nreqs;
2375	warn "iterate...";	2772	warn "iterate...";
2376	}	2773	}
		2774
		2775	++$RELOAD;
2377		2776
2378	warn "cancelling all extension coros";	2777	warn "cancelling all extension coros";
2379	$_->cancel for values %EXT_CORO;	2778	$_->cancel for values %EXT_CORO;
2380	%EXT_CORO = ();	2779	%EXT_CORO = ();
2381		2780
…		…
2421	Symbol::delete_package "safe::$_"	2820	Symbol::delete_package "safe::$_"
2422	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2821	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2423		2822
2424	warn "unloading cf.pm \"a bit\"";	2823	warn "unloading cf.pm \"a bit\"";
2425	delete $INC{"cf.pm"};	2824	delete $INC{"cf.pm"};
		2825	delete $INC{"cf/pod.pm"};
2426		2826
2427	# don't, removes xs symbols, too,	2827	# don't, removes xs symbols, too,
2428	# and global variables created in xs	2828	# and global variables created in xs
2429	#Symbol::delete_package __PACKAGE__;	2829	#Symbol::delete_package __PACKAGE__;
2430		2830
…		…
2434	require cf;	2834	require cf;
2435	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2835	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2436		2836
2437	warn "loading config and database again";	2837	warn "loading config and database again";
2438	cf::cfg_load;	2838	cf::cfg_load;
2439	cf::db_load;
2440		2839
2441	warn "loading extensions";	2840	warn "loading extensions";
2442	cf::load_extensions;	2841	cf::load_extensions;
2443		2842
2444	warn "reattaching attachments to objects/players";	2843	warn "reattaching attachments to objects/players";
2445	_global_reattach;	2844	_global_reattach; # objects, sockets
2446	warn "reattaching attachments to maps";	2845	warn "reattaching attachments to maps";
2447	reattach $_ for values %MAP;	2846	reattach $_ for values %MAP;
		2847	warn "reattaching attachments to players";
		2848	reattach $_ for values %PLAYER;
2448		2849
2449	warn "restarting server ticker";	2850	warn "leaving sync_job";
2450		2851
2451	$TICK_WATCHER->start;	2852	1
2452	};	2853	} or do {
2453
2454	if ($@) {
2455	warn $@;	2854	warn $@;
2456	warn "error while reloading, exiting.";	2855	warn "error while reloading, exiting.";
2457	exit 1;	2856	exit 1;
2458	}	2857	};
2459		2858
2460	warn "reloaded";	2859	warn "reloaded";
2461	};	2860	};
2462		2861
2463	our $RELOAD_WATCHER; # used only during reload	2862	our $RELOAD_WATCHER; # used only during reload
2464		2863
		2864	sub reload_perl() {
		2865	# doing reload synchronously and two reloads happen back-to-back,
		2866	# coro crashes during coro_state_free->destroy here.
		2867
		2868	$RELOAD_WATCHER ||= Event->timer (
		2869	reentrant => 0,
		2870	after => 0,
		2871	data => WF_AUTOCANCEL,
		2872	cb => sub {
		2873	do_reload_perl;
		2874	undef $RELOAD_WATCHER;
		2875	},
		2876	);
		2877	}
		2878
2465	register_command "reload" => sub {	2879	register_command "reload" => sub {
2466	my ($who, $arg) = @_;	2880	my ($who, $arg) = @_;
2467		2881
2468	if ($who->flag (FLAG_WIZ)) {	2882	if ($who->flag (FLAG_WIZ)) {
2469	$who->message ("reloading server.");	2883	$who->message ("reloading server.");
2470		2884	async { reload_perl };
2471	# doing reload synchronously and two reloads happen back-to-back,
2472	# coro crashes during coro_state_free->destroy here.
2473
2474	$RELOAD_WATCHER ||= Event->timer (
2475	reentrant => 0,
2476	after => 0,
2477	data => WF_AUTOCANCEL,
2478	cb => sub {
2479	reload;
2480	undef $RELOAD_WATCHER;
2481	},
2482	);
2483	}	2885	}
2484	};	2886	};
2485		2887
2486	unshift @INC, $LIBDIR;	2888	unshift @INC, $LIBDIR;
2487		2889
2488	my $bug_warning = 0;	2890	my $bug_warning = 0;
2489		2891
		2892	our @WAIT_FOR_TICK;
		2893	our @WAIT_FOR_TICK_BEGIN;
		2894
		2895	sub wait_for_tick {
		2896	return unless $TICK_WATCHER->is_active;
		2897	return if $Coro::current == $Coro::main;
		2898
		2899	my $signal = new Coro::Signal;
		2900	push @WAIT_FOR_TICK, $signal;
		2901	$signal->wait;
		2902	}
		2903
		2904	sub wait_for_tick_begin {
		2905	return unless $TICK_WATCHER->is_active;
		2906	return if $Coro::current == $Coro::main;
		2907
		2908	my $signal = new Coro::Signal;
		2909	push @WAIT_FOR_TICK_BEGIN, $signal;
		2910	$signal->wait;
		2911	}
		2912
		2913	my $min = 1e6;#d#
		2914	my $avg = 10;
2490	$TICK_WATCHER = Event->timer (	2915	$TICK_WATCHER = Event->timer (
2491	reentrant => 0,	2916	reentrant => 0,
2492	parked => 1,	2917	parked => 1,
2493	prio => 0,	2918	prio => 0,
2494	at => $NEXT_TICK || $TICK,	2919	at => $NEXT_TICK || $TICK,
…		…
2498	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	2923	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2499	unless ++$bug_warning > 10;	2924	unless ++$bug_warning > 10;
2500	return;	2925	return;
2501	}	2926	}
2502		2927
2503	$NOW = Event::time;	2928	$NOW = $tick_start = Event::time;
2504		2929
2505	cf::server_tick; # one server iteration	2930	cf::server_tick; # one server iteration
		2931
		2932	0 && sync_job {#d#
		2933	for(1..10) {
		2934	my $t = Event::time;
		2935	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2936	or die;
		2937
		2938	$map->width (50);
		2939	$map->height (50);
		2940	$map->alloc;
		2941	$map->_load_objects ("/tmp/x.map", 1);
		2942	my $t = Event::time - $t;
		2943
		2944	#next unless $t < 0.0013;#d#
		2945	if ($t < $min) {
		2946	$min = $t;
		2947	}
		2948	$avg = $avg * 0.99 + $t * 0.01;
		2949	}
		2950	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2951	exit 0;
		2952	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2953	};
		2954
2506	$RUNTIME += $TICK;	2955	$RUNTIME += $TICK;
2507	$NEXT_TICK += $TICK;	2956	$NEXT_TICK += $TICK;
2508		2957
2509	$WAIT_FOR_TICK->broadcast;	2958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2510	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2959	$NEXT_RUNTIME_WRITE = $NOW + 10;
2511		2960	Coro::async_pool {
2512	Event::sweep;	2961	write_runtime
2513	Coro::cede_notself;	2962	or warn "ERROR: unable to write runtime file: $!";
		2963	};
2514		2964	}
		2965
2515	# my $AFTER = Event::time;	2966	# my $AFTER = Event::time;
2516	# warn $AFTER - $NOW;#d#	2967	# warn $AFTER - $NOW;#d#
2517		2968
		2969	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2970	$sig->send;
		2971	}
		2972	while (my $sig = shift @WAIT_FOR_TICK) {
		2973	$sig->send;
		2974	}
		2975
		2976	$NOW = Event::time;
		2977
2518	# if we are delayed by four ticks or more, skip them all	2978	# if we are delayed by four ticks or more, skip them all
2519	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2979	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2520		2980
2521	$TICK_WATCHER->at ($NEXT_TICK);	2981	$TICK_WATCHER->at ($NEXT_TICK);
2522	$TICK_WATCHER->start;	2982	$TICK_WATCHER->start;
		2983
		2984	$LOAD = ($NOW - $tick_start) / $TICK;
		2985	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2986
		2987	_post_tick;
		2988
		2989
2523	},	2990	},
2524	);	2991	);
2525		2992
		2993	{
		2994	BDB::max_poll_time $TICK * 0.1;
		2995	$BDB_POLL_WATCHER = Event->io (
		2996	reentrant => 0,
		2997	fd => BDB::poll_fileno,
		2998	poll => 'r',
		2999	prio => 0,
		3000	data => WF_AUTOCANCEL,
		3001	cb => \&BDB::poll_cb,
		3002	);
		3003	BDB::min_parallel 8;
		3004
		3005	BDB::set_sync_prepare {
		3006	my $status;
		3007	my $current = $Coro::current;
		3008	(
		3009	sub {
		3010	$status = $!;
		3011	$current->ready; undef $current;
		3012	},
		3013	sub {
		3014	Coro::schedule while defined $current;
		3015	$! = $status;
		3016	},
		3017	)
		3018	};
		3019
		3020	unless ($DB_ENV) {
		3021	$DB_ENV = BDB::db_env_create;
		3022
		3023	cf::sync_job {
		3024	eval {
		3025	BDB::db_env_open
		3026	$DB_ENV,
		3027	$BDBDIR,
		3028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3030	0666;
		3031
		3032	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3033
		3034	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3035	$DB_ENV->set_lk_detect;
		3036	};
		3037
		3038	cf::cleanup "db_env_open(db): $@" if $@;
		3039	};
		3040	}
		3041	}
		3042
		3043	{
		3044	IO::AIO::min_parallel 8;
		3045
		3046	undef $Coro::AIO::WATCHER;
2526	IO::AIO::max_poll_time $TICK * 0.1;	3047	IO::AIO::max_poll_time $TICK * 0.1;
2527
2528	undef $Coro::AIO::WATCHER;
2529	$AIO_POLL_WATCHER = Event->io (	3048	$AIO_POLL_WATCHER = Event->io (
2530	reentrant => 0,	3049	reentrant => 0,
		3050	data => WF_AUTOCANCEL,
2531	fd => IO::AIO::poll_fileno,	3051	fd => IO::AIO::poll_fileno,
2532	poll => 'r',	3052	poll => 'r',
2533	prio => 6,	3053	prio => 6,
2534	data => WF_AUTOCANCEL,
2535	cb => \&IO::AIO::poll_cb,	3054	cb => \&IO::AIO::poll_cb,
2536	);	3055	);
		3056	}
2537		3057
2538	$WRITE_RUNTIME_WATCHER = Event->timer (	3058	my $_log_backtrace;
2539	reentrant => 0,	3059
2540	data => WF_AUTOCANCEL,	3060	sub _log_backtrace {
2541	after => 1,	3061	my ($msg, @addr) = @_;
2542	interval => 10,	3062
2543	prio => 6, # keep it lowest so it acts like a watchdog	3063	$msg =~ s/\n//;
2544	cb => Coro::unblock_sub {	3064
2545	write_runtime	3065	# limit the # of concurrent backtraces
2546	or warn "ERROR: unable to write runtime file: $!";	3066	if ($_log_backtrace < 2) {
		3067	++$_log_backtrace;
		3068	async {
		3069	my @bt = fork_call {
		3070	@addr = map { sprintf "%x", $_ } @addr;
		3071	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3072	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3073	or die "addr2line: $!";
		3074
		3075	my @funcs;
		3076	my @res = <$fh>;
		3077	chomp for @res;
		3078	while (@res) {
		3079	my ($func, $line) = splice @res, 0, 2, ();
		3080	push @funcs, "[$func] $line";
		3081	}
		3082
		3083	@funcs
		3084	};
		3085
		3086	LOG llevInfo, "[ABT] $msg\n";
		3087	LOG llevInfo, "[ABT] $_\n" for @bt;
		3088	--$_log_backtrace;
		3089	};
		3090	} else {
		3091	LOG llevInfo, "[ABT] $msg\n";
		3092	LOG llevInfo, "[ABT] [suppressed]\n";
2547	},	3093	}
2548	);	3094	}
		3095
		3096	# load additional modules
		3097	use cf::pod;
2549		3098
2550	END { cf::emergency_save }	3099	END { cf::emergency_save }
2551		3100
2552	1	3101	1
2553		3102

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