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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.168 by root, Sun Jan 14 00:37:14 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 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
38		51
39	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	53	our %EXTCMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
43		56
		57	our $RELOAD; # number of reloads so far
44	our @EVENT;	58	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		59
47	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	73	our $TICK_WATCHER;
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;
		113
		114	sub cf::map::normalise;
87		115
88	#############################################################################	116	#############################################################################
89		117
90	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
91		119
…		…
98	=item $cf::RUNTIME	126	=item $cf::RUNTIME
99		127
100	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
101	every server tick.	129	every server tick.
102		130
103	=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
104		134
105	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
106	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.
107		139
108	=item $cf::NOW	140	=item $cf::NOW
109		141
110	The time of the last (current) server tick.	142	The time of the last (current) server tick.
111		143
112	=item $cf::TICK	144	=item $cf::TICK
113		145
114	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.
115		157
116	=item %cf::CFG	158	=item %cf::CFG
117		159
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	161	from wherever your confdir points to.
120		162
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		164
123	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
124	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
125	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.
126	window of cpu time available, or simply to synchronise to the server tick.
127		168
128	=back	169	=back
129		170
130	=cut	171	=cut
131		172
132	BEGIN {	173	BEGIN {
133	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	175	my $msg = join "", @_;
135	utf8::encode $msg;
136		176
137	$msg .= "\n"	177	$msg .= "\n"
138	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
139		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
140	LOG llevError, $msg;	183	LOG llevError, $msg;
141	};	184	};
142	}	185	}
143		186
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@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';
149	@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)
150		194
151	# 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
152	# within the Safe compartment.	196	# within the Safe compartment.
153	for my $pkg (qw(	197	for my $pkg (qw(
154	cf::global cf::attachable	198	cf::global cf::attachable
…		…
162	}	206	}
163		207
164	$Event::DIED = sub {	208	$Event::DIED = sub {
165	warn "error in event callback: @_";	209	warn "error in event callback: @_";
166	};	210	};
		211
		212	#############################################################################
167		213
168	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
169		215
170	=over 4	216	=over 4
171		217
…		…
190	$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;
191	$d	237	$d
192	} || "[unable to dump $_[0]: '$@']";	238	} || "[unable to dump $_[0]: '$@']";
193	}	239	}
194		240
195	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
196		242
197	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
198		244
199	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
200		246
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
209		248
210	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
211
212	=cut
213
214	sub to_json($) {
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
216	JSON::Syck::Dump $_[0]
217	}
218		250
219	=item cf::lock_wait $string	251	=item cf::lock_wait $string
220		252
221	Wait until the given lock is available. See cf::lock_acquire.	253	Wait until the given lock is available. See cf::lock_acquire.
222		254
…		…
228	returned.	260	returned.
229		261
230	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
231	uses map_find and cf::map::load uses map_load).	263	uses map_find and cf::map::load uses map_load).
232		264
		265	=item $locked = cf::lock_active $string
		266
		267	Return true if the lock is currently active, i.e. somebody has locked it.
		268
233	=cut	269	=cut
234		270
235	our %LOCK;	271	our %LOCK;
236		272
237	sub lock_wait($) {	273	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	292	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	293	$_->ready for @{ delete $LOCK{$key} };
258	}	294	}
259	}	295	}
260		296
		297	sub lock_active($) {
		298	my ($key) = @_;
		299
		300	! ! $LOCK{$key}
		301	}
		302
261	sub freeze_mainloop {	303	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	304	return unless $TICK_WATCHER->is_active;
263		305
264	my $guard = Coro::guard {	306	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	307	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	308	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	309	$TICK_WATCHER->stop;
270	$guard	310	$guard
271	}	311	}
272		312
273	=item cf::async { BLOCK }	313	=item cf::async { BLOCK }
…		…
280		320
281	BEGIN { *async = \&Coro::async_pool }	321	BEGIN { *async = \&Coro::async_pool }
282		322
283	=item cf::sync_job { BLOCK }	323	=item cf::sync_job { BLOCK }
284		324
285	The design of crossfire+ requires that the main coro ($Coro::main) is	325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	326	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
288		329
289	If it must be done, put the blocking parts into C<sync_job>. This will run	330	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	331	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	332	server will be frozen during this time, so the block should either finish
292	fast or be very important.	333	fast or be very important.
…		…
295		336
296	sub sync_job(&) {	337	sub sync_job(&) {
297	my ($job) = @_;	338	my ($job) = @_;
298		339
299	if ($Coro::current == $Coro::main) {	340	if ($Coro::current == $Coro::main) {
		341	my $time = Event::time;
		342
300	# this is the main coro, too bad, we have to block	343	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	344	# till the operation succeeds, freezing the server :/
302		345
303	# TODO: use suspend/resume instead	346	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	347	# (but this is cancel-safe)
…		…
315		358
316	while ($busy) {	359	while ($busy) {
317	Coro::cede or Event::one_event;	360	Coro::cede or Event::one_event;
318	}	361	}
319		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
320	wantarray ? @res : $res[0]	370	wantarray ? @res : $res[0]
321	} else {	371	} else {
322	# we are in another coroutine, how wonderful, everything just works	372	# we are in another coroutine, how wonderful, everything just works
323		373
324	$job->()	374	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
344		394
345	$coro	395	$coro
346	}	396	}
347		397
348	sub write_runtime {	398	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		399
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	400	Executes the given code block with the given arguments in a seperate
352	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.
353		404
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	405	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		406
358	aio_fsync $fh	407	sub fork_call(&@) {
359	and return;	408	my ($cb, @args) = @_;
360		409
		410	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		411	# or die "socketpair: $!";
		412	pipe my $fh1, my $fh2
		413	or die "pipe: $!";
		414
		415	if (my $pid = fork) {
361	close $fh	416	close $fh2;
362	or return;
363		417
364	aio_rename "$runtime~", $runtime	418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
365	and return;	419	$res = Coro::Storable::thaw $res;
366		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
367	1	439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		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 });
368	}	567	}
369		568
370	=back	569	=back
371		570
372	=cut	571	=cut
…		…
379	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")
380	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
381		580
382	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>
383	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
384	crossfire+).	583	Crossfire TRT).
385		584
386	=over 4	585	=over 4
387		586
388	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
389		588
…		…
503	our @CB_TYPE = (); # registry for type (cf-object class) based events	702	our @CB_TYPE = (); # registry for type (cf-object class) based events
504	our @CB_MAP = ();	703	our @CB_MAP = ();
505		704
506	my %attachment;	705	my %attachment;
507		706
		707	sub cf::attachable::thawer_merge {
		708	# simply override everything except _meta
		709	local $_[0]{_meta};
		710	%{$_[0]} = %{$_[1]};
		711	}
		712
508	sub _attach_cb($$$$) {	713	sub _attach_cb($$$$) {
509	my ($registry, $event, $prio, $cb) = @_;	714	my ($registry, $event, $prio, $cb) = @_;
510		715
511	use sort 'stable';	716	use sort 'stable';
512		717
…		…
546	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
547		752
548	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
549	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
550	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
551	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
552		757
553	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
554	my $pkg = shift @arg;	759	my $pkg = shift @arg;
555		760
556	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
585	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
586	}	791	}
587		792
588	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
589	} else {	794	} else {
590	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
591	}	796	}
592		797
593	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
594	}	799	}
595		800
…		…
597	if (ref $_[0]) {	802	if (ref $_[0]) {
598	_object_attach @_;	803	_object_attach @_;
599	} else {	804	} else {
600	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
601	}	806	}
		807	_recalc_want;
602	};	808	};
603		809
604	# all those should be optimised	810	# all those should be optimised
605	sub cf::attachable::detach {	811	sub cf::attachable::detach {
606	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
609	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
610	reattach ($obj);	816	reattach ($obj);
611	} else {	817	} else {
612	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
613	}	819	}
		820	_recalc_want;
614	};	821	};
615		822
616	sub cf::attachable::attached {	823	sub cf::attachable::attached {
617	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
618		825
…		…
683	# object support	890	# object support
684		891
685	sub reattach {	892	sub reattach {
686	# basically do the same as instantiate, without calling instantiate	893	# basically do the same as instantiate, without calling instantiate
687	my ($obj) = @_;	894	my ($obj) = @_;
		895
		896	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
688		897
689	my $registry = $obj->registry;	898	my $registry = $obj->registry;
690		899
691	@$registry = ();	900	@$registry = ();
692		901
…		…
739	$filename, length $$rdata, scalar @$objs;	948	$filename, length $$rdata, scalar @$objs;
740		949
741	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	950	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
742	chmod SAVE_MODE, $fh;	951	chmod SAVE_MODE, $fh;
743	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	952	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
744	aio_fsync $fh;	953	aio_fsync $fh if $cf::USE_FSYNC;
745	close $fh;	954	close $fh;
746		955
747	if (@$objs) {	956	if (@$objs) {
748	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) {
749	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
750	my $data = Storable::nfreeze { version => 1, objs => $objs };	959	my $data = Storable::nfreeze { version => 1, objs => $objs };
751	aio_write $fh, 0, (length $data), $data, 0;	960	aio_write $fh, 0, (length $data), $data, 0;
752	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
753	close $fh;	962	close $fh;
754	aio_rename "$filename.pst~", "$filename.pst";	963	aio_rename "$filename.pst~", "$filename.pst";
755	}	964	}
756	} else {	965	} else {
757	aio_unlink "$filename.pst";	966	aio_unlink "$filename.pst";
…		…
789	or return;	998	or return;
790	$av = eval { (Storable::thaw $av)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
791	}	1000	}
792		1001
793	warn sprintf "loading %s (%d)\n",	1002	warn sprintf "loading %s (%d)\n",
794	$filename, length $data, scalar @{$av || []};#d#	1003	$filename, length $data, scalar @{$av || []};
795	return ($data, $av);	1004	return ($data, $av);
796	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
797		1012
798	#############################################################################	1013	#############################################################################
799	# command handling &c	1014	# command handling &c
800		1015
801	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
814	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
815	}	1030	}
816		1031
817	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
818		1033
819	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.
820		1035
821	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
822	called.	1037	called.
823		1038
824	=cut	1039	=cut
…		…
859		1074
860	cf::override;	1075	cf::override;
861	},	1076	},
862	);	1077	);
863		1078
864	sub load_extension {
865	my ($path) = @_;
866
867	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
868	my $base = $1;
869	my $pkg = $1;
870	$pkg =~ s/[^[:word:]]/_/g;
871	$pkg = "ext::$pkg";
872
873	warn "... loading '$path' into '$pkg'\n";
874
875	open my $fh, "<:utf8", $path
876	or die "$path: $!";
877
878	my $source =
879	"package $pkg; use strict; use utf8;\n"
880	. "#line 1 \"$path\"\n{\n"
881	. (do { local $/; <$fh> })
882	. "\n};\n1";
883
884	unless (eval $source) {
885	my $msg = $@ ? "$path: $@\n"
886	: "extension disabled.\n";
887	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
888	warn $@;
889	warn "mandatory extension failed to load, exiting.\n";
890	exit 1;
891	}
892	die $@;
893	}
894
895	push @EXTS, $pkg;
896	}
897
898	sub load_extensions {	1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
899	for my $ext (<$LIBDIR/*.ext>) {	1083	for my $path (<$LIBDIR/*.ext>) {
900	next unless -r $ext;	1084	next unless -r $path;
901	eval {	1085
902	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;
903	1	1143	}
904	} or warn "$ext not loaded: $@";	1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
905	}	1149	};
906	}	1150	}
907		1151
908	#############################################################################	1152	#############################################################################
909		1153
		1154	=back
		1155
910	=head2 CORE EXTENSIONS	1156	=head2 CORE EXTENSIONS
911		1157
912	Functions and methods that extend core crossfire objects.	1158	Functions and methods that extend core crossfire objects.
913		1159
914	=cut	1160	=cut
…		…
926	Returns the given player object, loading it if necessary (might block).	1172	Returns the given player object, loading it if necessary (might block).
927		1173
928	=cut	1174	=cut
929		1175
930	sub playerdir($) {	1176	sub playerdir($) {
931	cf::localdir	1177	"$PLAYERDIR/"
932	. "/"
933	. cf::playerdir
934	. "/"
935	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1178	. (ref $_[0] ? $_[0]->ob->name : $_[0])
936	}	1179	}
937		1180
938	sub path($) {	1181	sub path($) {
939	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1182	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
940		1183
941	(playerdir $login) . "/$login.pl"	1184	(playerdir $login) . "/playerdata"
942	}	1185	}
943		1186
944	sub find_active($) {	1187	sub find_active($) {
945	$cf::PLAYER{$_[0]}	1188	$cf::PLAYER{$_[0]}
946	and $cf::PLAYER{$_[0]}->active	1189	and $cf::PLAYER{$_[0]}->active
…		…
949		1192
950	sub exists($) {	1193	sub exists($) {
951	my ($login) = @_;	1194	my ($login) = @_;
952		1195
953	$cf::PLAYER{$login}	1196	$cf::PLAYER{$login}
954	or cf::sync_job { !aio_stat $login }	1197	or cf::sync_job { !aio_stat path $login }
955	}	1198	}
956		1199
957	sub find($) {	1200	sub find($) {
958	return $cf::PLAYER{$_[0]} || do {	1201	return $cf::PLAYER{$_[0]} || do {
959	my $login = $_[0];	1202	my $login = $_[0];
960		1203
961	my $guard = cf::lock_acquire "user_find:$login";	1204	my $guard = cf::lock_acquire "user_find:$login";
962		1205
963	$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
964	my $pl = load_pl path $login	1214	my $pl = load_pl path $login
965	or return;	1215	or return;
966	$cf::PLAYER{$login} = $pl	1216	$cf::PLAYER{$login} = $pl
967	}	1217	}
968	}	1218	}
…		…
1005		1255
1006	=cut	1256	=cut
1007		1257
1008	sub quit_character {	1258	sub quit_character {
1009	my ($pl) = @_;	1259	my ($pl) = @_;
		1260
		1261	my $name = $pl->ob->name;
1010		1262
1011	$pl->{deny_save} = 1;	1263	$pl->{deny_save} = 1;
1012	$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
1013		1265
1014	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1266	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1019	my $path = playerdir $pl;	1271	my $path = playerdir $pl;
1020	my $temp = "$path~$cf::RUNTIME~deleting~";	1272	my $temp = "$path~$cf::RUNTIME~deleting~";
1021	aio_rename $path, $temp;	1273	aio_rename $path, $temp;
1022	delete $cf::PLAYER{$pl->ob->name};	1274	delete $cf::PLAYER{$pl->ob->name};
1023	$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
1024	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;
1025	}	1297	}
1026		1298
1027	=item cf::player::list_logins	1299	=item cf::player::list_logins
1028		1300
1029	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
1030	while and may block, so not sync_job-capable, ever.	1302	while and may block, so not sync_job-capable, ever.
1031		1303
1032	=cut	1304	=cut
1033		1305
1034	sub list_logins {	1306	sub list_logins {
1035	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1307	my $dirs = aio_readdir $PLAYERDIR
1036	or return [];	1308	or return [];
1037		1309
1038	my @logins;	1310	my @logins;
1039		1311
1040	for my $login (@$dirs) {	1312	for my $login (@$dirs) {
…		…
1057	=cut	1329	=cut
1058		1330
1059	sub maps($) {	1331	sub maps($) {
1060	my ($pl) = @_;	1332	my ($pl) = @_;
1061		1333
		1334	$pl = ref $pl ? $pl->ob->name : $pl;
		1335
1062	my $files = aio_readdir playerdir $pl	1336	my $files = aio_readdir playerdir $pl
1063	or return;	1337	or return;
1064		1338
1065	my @paths;	1339	my @paths;
1066		1340
1067	for (@$files) {	1341	for (@$files) {
1068	utf8::decode $_;	1342	utf8::decode $_;
1069	next if /\.(?:pl|pst)$/;	1343	next if /\.(?:pl|pst)$/;
1070	next unless /^$PATH_SEP/o;	1344	next unless /^$PATH_SEP/o;
1071		1345
1072	s/\.map$//;	1346	push @paths, cf::map::normalise "~$pl/$_";
1073	push @paths, "~" . $pl->ob->name . "/" . $_;
1074	}	1347	}
1075		1348
1076	\@paths	1349	\@paths
1077	}	1350	}
1078		1351
1079	=item $player->ext_reply ($msgid, $msgtype, %msg)	1352	=item $player->ext_reply ($msgid, %msg)
1080		1353
1081	Sends an ext reply to the player.	1354	Sends an ext reply to the player.
1082		1355
1083	=cut	1356	=cut
1084		1357
1085	sub ext_reply($$$%) {	1358	sub ext_reply($$%) {
1086	my ($self, $id, %msg) = @_;	1359	my ($self, $id, %msg) = @_;
1087		1360
1088	$msg{msgid} = $id;	1361	$msg{msgid} = $id;
1089		1362
1090	$self->send ("ext " . cf::to_json \%msg);	1363	$self->send ("ext " . cf::to_json \%msg);
1091	}	1364	}
1092		1365
1093	package cf;	1366	=item $player->ext_event ($type, %msg)
		1367
		1368	Sends an ext event to the client.
		1369
		1370	=cut
		1371
		1372	sub ext_event($$%) {
		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	}
1094		1406
1095	=back	1407	=back
1096
1097		1408
1098	=head3 cf::map	1409	=head3 cf::map
1099		1410
1100	=over 4	1411	=over 4
1101		1412
…		…
1105		1416
1106	use Fcntl;	1417	use Fcntl;
1107	use Coro::AIO;	1418	use Coro::AIO;
1108		1419
1109	use overload	1420	use overload
1110	'""' => \&as_string;	1421	'""' => \&as_string,
		1422	fallback => 1;
1111		1423
1112	our $MAX_RESET = 3600;	1424	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1425	our $DEFAULT_RESET = 3000;
1114		1426
1115	sub generate_random_map {	1427	sub generate_random_map {
1116	my ($self, $rmp) = @_;	1428	my ($self, $rmp) = @_;
1117
1118	# mit "rum" bekleckern, nicht	1429	# mit "rum" bekleckern, nicht
1119	$self->_create_random_map (	1430	$self->_create_random_map (
1120	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1431	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1121	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1432	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1122	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1433	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1129	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1440	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1130	(cf::region::find $rmp->{region}), $rmp->{custom}	1441	(cf::region::find $rmp->{region}), $rmp->{custom}
1131	)	1442	)
1132	}	1443	}
1133		1444
		1445	=item cf::map->register ($regex, $prio)
		1446
		1447	Register a handler for the map path matching the given regex at the
		1448	givne priority (higher is better, built-in handlers have priority 0, the
		1449	default).
		1450
		1451	=cut
		1452
1134	sub register {	1453	sub register {
1135	my (undef, $regex) = @_;	1454	my (undef, $regex, $prio) = @_;
1136	my $pkg = caller;	1455	my $pkg = caller;
1137		1456
1138	no strict;	1457	no strict;
1139	push @{"$pkg\::ISA"}, __PACKAGE__;	1458	push @{"$pkg\::ISA"}, __PACKAGE__;
1140		1459
1141	$EXT_MAP{$pkg} = qr<$regex>;	1460	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1142	}	1461	}
1143		1462
1144	# also paths starting with '/'	1463	# also paths starting with '/'
1145	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1464	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1465
		1466	sub thawer_merge {
		1467	my ($self, $merge) = @_;
		1468
		1469	# we have to keep some variables in memory intact
		1470	local $self->{path};
		1471	local $self->{load_path};
		1472
		1473	$self->SUPER::thawer_merge ($merge);
		1474	}
1146		1475
1147	sub normalise {	1476	sub normalise {
1148	my ($path, $base) = @_;	1477	my ($path, $base) = @_;
		1478
		1479	$path = "$path"; # make sure its a string
		1480
		1481	$path =~ s/\.map$//;
1149		1482
1150	# map plan:	1483	# map plan:
1151	#	1484	#
1152	# /! non-realised random map exit (special hack!)	1485	# /! non-realised random map exit (special hack!)
1153	# {... are special paths that are not being touched	1486	# {... are special paths that are not being touched
…		…
1181		1514
1182	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1515	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1183		1516
1184	$path = normalise $path, $base;	1517	$path = normalise $path, $base;
1185		1518
1186	for my $pkg (keys %EXT_MAP) {	1519	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1187	if ($path =~ $EXT_MAP{$pkg}) {	1520	if ($path =~ $EXT_MAP{$pkg}[1]) {
1188	my $self = bless cf::map::new, $pkg;	1521	my $self = bless cf::map::new, $pkg;
1189	$self->{path} = $path; $self->path ($path);	1522	$self->{path} = $path; $self->path ($path);
1190	$self->init; # pass $1 etc.	1523	$self->init; # pass $1 etc.
1191	return $self;	1524	return $self;
1192	}	1525	}
1193	}	1526	}
1194		1527
1195	Carp::carp "unable to resolve path '$path'.";	1528	Carp::carp "unable to resolve path '$path' (base '$base').";
1196	()	1529	()
1197	}	1530	}
1198		1531
1199	sub init {	1532	sub init {
1200	my ($self) = @_;	1533	my ($self) = @_;
…		…
1215		1548
1216	# the original (read-only) location	1549	# the original (read-only) location
1217	sub load_path {	1550	sub load_path {
1218	my ($self) = @_;	1551	my ($self) = @_;
1219		1552
1220	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1553	"$MAPDIR/$self->{path}.map"
1221	}	1554	}
1222		1555
1223	# the temporary/swap location	1556	# the temporary/swap location
1224	sub save_path {	1557	sub save_path {
1225	my ($self) = @_;	1558	my ($self) = @_;
1226		1559
1227	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1560	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1228	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1561	"$TMPDIR/$path.map"
1229	}	1562	}
1230		1563
1231	# the unique path, undef == no special unique path	1564	# the unique path, undef == no special unique path
1232	sub uniq_path {	1565	sub uniq_path {
1233	my ($self) = @_;	1566	my ($self) = @_;
1234		1567
1235	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1568	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1236	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1569	"$UNIQUEDIR/$path"
1237	}	1570	}
1238		1571
1239	# and all this just because we cannot iterate over	1572	# and all this just because we cannot iterate over
1240	# all maps in C++...	1573	# all maps in C++...
1241	sub change_all_map_light {	1574	sub change_all_map_light {
…		…
1243		1576
1244	$_->change_map_light ($change)	1577	$_->change_map_light ($change)
1245	for grep $_->outdoor, values %cf::MAP;	1578	for grep $_->outdoor, values %cf::MAP;
1246	}	1579	}
1247		1580
		1581	sub decay_objects {
		1582	my ($self) = @_;
		1583
		1584	return if $self->{deny_reset};
		1585
		1586	$self->do_decay_objects;
		1587	}
		1588
1248	sub unlink_save {	1589	sub unlink_save {
1249	my ($self) = @_;	1590	my ($self) = @_;
1250		1591
1251	utf8::encode (my $save = $self->save_path);	1592	utf8::encode (my $save = $self->save_path);
1252	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1593	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1253	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1594	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1254	}	1595	}
1255		1596
1256	sub load_header_from($) {	1597	sub load_header_from($) {
1257	my ($self, $path) = @_;	1598	my ($self, $path) = @_;
1258		1599
1259	utf8::encode $path;	1600	utf8::encode $path;
1260	aio_open $path, O_RDONLY, 0	1601	#aio_open $path, O_RDONLY, 0
1261	or return;	1602	# or return;
1262		1603
1263	$self->_load_header ($path)	1604	$self->_load_header ($path)
1264	or return;	1605	or return;
1265		1606
1266	$self->{load_path} = $path;	1607	$self->{load_path} = $path;
1267		1608
1268	1	1609	1
1269	}	1610	}
1270		1611
1271	sub load_orig {	1612	sub load_header_orig {
1272	my ($self) = @_;	1613	my ($self) = @_;
1273		1614
1274	$self->load_header_from ($self->load_path)	1615	$self->load_header_from ($self->load_path)
1275	}	1616	}
1276		1617
1277	sub load_temp {	1618	sub load_header_temp {
1278	my ($self) = @_;	1619	my ($self) = @_;
1279		1620
1280	$self->load_header_from ($self->save_path)	1621	$self->load_header_from ($self->save_path)
		1622	}
		1623
		1624	sub prepare_temp {
		1625	my ($self) = @_;
		1626
		1627	$self->last_access ((delete $self->{last_access})
		1628	|| $cf::RUNTIME); #d#
		1629	# safety
		1630	$self->{instantiate_time} = $cf::RUNTIME
		1631	if $self->{instantiate_time} > $cf::RUNTIME;
		1632	}
		1633
		1634	sub prepare_orig {
		1635	my ($self) = @_;
		1636
		1637	$self->{load_original} = 1;
		1638	$self->{instantiate_time} = $cf::RUNTIME;
		1639	$self->last_access ($cf::RUNTIME);
		1640	$self->instantiate;
1281	}	1641	}
1282		1642
1283	sub load_header {	1643	sub load_header {
1284	my ($self) = @_;	1644	my ($self) = @_;
1285		1645
1286	if ($self->load_temp) {	1646	if ($self->load_header_temp) {
1287	$self->last_access ((delete $self->{last_access})	1647	$self->prepare_temp;
1288	|| $cf::RUNTIME); #d#
1289	# safety
1290	$self->{instantiate_time} = $cf::RUNTIME
1291	if $self->{instantiate_time} > $cf::RUNTIME;
1292	} else {	1648	} else {
1293	$self->load_orig	1649	$self->load_header_orig
1294	or return;	1650	or return;
1295		1651	$self->prepare_orig;
1296	$self->{load_original} = 1;
1297	$self->{instantiate_time} = $cf::RUNTIME;
1298	$self->last_access ($cf::RUNTIME);
1299	$self->instantiate;
1300	}	1652	}
		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;
1301		1659
1302	1	1660	1
1303	}	1661	}
1304		1662
1305	sub find;	1663	sub find;
…		…
1318	$map->{last_save} = $cf::RUNTIME;	1676	$map->{last_save} = $cf::RUNTIME;
1319		1677
1320	$map->load_header	1678	$map->load_header
1321	or return;	1679	or return;
1322		1680
1323	if ($map->should_reset) {	1681	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1682	# doing this can freeze the server in a sync job, obviously
		1683	#$cf::WAIT_FOR_TICK->wait;
1324	$map->reset;	1684	$map->reset;
1325	undef $guard;	1685	undef $guard;
1326	$map = find $path	1686	return find $path;
1327	or return;
1328	}	1687	}
1329		1688
1330	$cf::MAP{$path} = $map	1689	$cf::MAP{$path} = $map
1331	}	1690	}
1332	}	1691	}
		1692
		1693	sub pre_load { }
		1694	sub post_load { }
1333		1695
1334	sub load {	1696	sub load {
1335	my ($self) = @_;	1697	my ($self) = @_;
1336		1698
		1699	local $self->{deny_reset} = 1; # loading can take a long time
		1700
1337	my $path = $self->{path};	1701	my $path = $self->{path};
		1702
		1703	{
1338	my $guard = cf::lock_acquire "map_load:$path";	1704	my $guard = cf::lock_acquire "map_load:$path";
1339		1705
1340	return if $self->in_memory != cf::MAP_SWAPPED;	1706	return if $self->in_memory != cf::MAP_SWAPPED;
1341		1707
1342	$self->in_memory (cf::MAP_LOADING);	1708	$self->in_memory (cf::MAP_LOADING);
1343		1709
1344	$self->alloc;	1710	$self->alloc;
1345	$self->_load_objects ($self->{load_path}, 1)
1346	or return;
1347		1711
1348	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1712	$self->pre_load;
1349	if delete $self->{load_original};
1350
1351	if (my $uniq = $self->uniq_path) {
1352	utf8::encode $uniq;
1353	if (aio_open $uniq, O_RDONLY, 0) {
1354	$self->clear_unique_items;
1355	$self->_load_objects ($uniq, 0);
1356	}
1357	}
1358
1359	Coro::cede;
1360
1361	# now do the right thing for maps
1362	$self->link_multipart_objects;
1363
1364	unless ($self->{deny_activate}) {
1365	$self->decay_objects;
1366	$self->fix_auto_apply;
1367	$self->update_buttons;
1368	Coro::cede;	1713	Coro::cede;
1369	$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;
1370	$self->difficulty ($self->estimate_difficulty)	1732	$self->difficulty ($self->estimate_difficulty)
1371	unless $self->difficulty;	1733	unless $self->difficulty;
1372	Coro::cede;	1734	Coro::cede;
		1735
		1736	unless ($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;
1373	$self->activate;	1743	$self->activate;
1374	}	1744	}
1375		1745
1376	$self->in_memory (cf::MAP_IN_MEMORY);	1746	$self->in_memory (cf::MAP_IN_MEMORY);
		1747	}
		1748
		1749	$self->post_load;
1377	}	1750	}
1378		1751
1379	sub customise_for {	1752	sub customise_for {
1380	my ($self, $ob) = @_;	1753	my ($self, $ob) = @_;
1381		1754
1382	return find "~" . $ob->name . "/" . $self->{path}	1755	return find "~" . $ob->name . "/" . $self->{path}
1383	if $self->per_player;	1756	if $self->per_player;
		1757
		1758	# return find "?party/" . $ob->name . "/" . $self->{path}
		1759	# if $self->per_party;
1384		1760
1385	$self	1761	$self
1386	}	1762	}
1387		1763
1388	# 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
…		…
1420		1796
1421	cf::sync_job { $map->load };	1797	cf::sync_job { $map->load };
1422	}	1798	}
1423		1799
1424	our %MAP_PREFETCH;	1800	our %MAP_PREFETCH;
1425	our $MAP_PREFETCHER = Coro::async {	1801	our $MAP_PREFETCHER = undef;
1426	while () {
1427	for my $path (keys %MAP_PREFETCH) {
1428	my $map = find $path
1429	or next;
1430	$map->load;
1431
1432	delete $MAP_PREFETCH{$path};
1433	}
1434	Coro::schedule;
1435	}
1436	};
1437		1802
1438	sub find_async {	1803	sub find_async {
1439	my ($path, $origin) = @_;	1804	my ($path, $origin) = @_;
1440		1805
1441	$path = normalise $path, $origin && $origin->{path};	1806	$path = normalise $path, $origin && $origin->{path};
1442		1807
1443	if (my $map = $cf::MAP{$path}) {	1808	if (my $map = $cf::MAP{$path}) {
1444	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1809	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1445	}	1810	}
1446		1811
1447	$MAP_PREFETCH{$path} = 0;	1812	undef $MAP_PREFETCH{$path};
		1813	$MAP_PREFETCHER ||= cf::async {
		1814	while (%MAP_PREFETCH) {
		1815	for my $path (keys %MAP_PREFETCH) {
		1816	my $map = find $path
		1817	or next;
		1818	$map->load;
		1819
		1820	delete $MAP_PREFETCH{$path};
		1821	}
		1822	}
		1823	undef $MAP_PREFETCHER;
		1824	};
1448	$MAP_PREFETCHER->ready;	1825	$MAP_PREFETCHER->prio (6);
1449		1826
1450	()	1827	()
1451	}	1828	}
1452		1829
1453	sub save {	1830	sub save {
…		…
1498		1875
1499	sub reset_at {	1876	sub reset_at {
1500	my ($self) = @_;	1877	my ($self) = @_;
1501		1878
1502	# TODO: safety, remove and allow resettable per-player maps	1879	# TODO: safety, remove and allow resettable per-player maps
1503	return 1e99 if $self->isa ("ext::map_per_player");
1504	return 1e99 if $self->{deny_reset};	1880	return 1e99 if $self->{deny_reset};
1505		1881
1506	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1882	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1507	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1883	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1508		1884
…		…
1513	my ($self) = @_;	1889	my ($self) = @_;
1514		1890
1515	$self->reset_at <= $cf::RUNTIME	1891	$self->reset_at <= $cf::RUNTIME
1516	}	1892	}
1517		1893
1518	sub rename {
1519	my ($self, $new_path) = @_;
1520
1521	normalise $new_path;
1522
1523	$self->unlink_save;
1524
1525	delete $cf::MAP{$self->path};
1526	$self->{path} = $new_path; $self->path ($self->{path});
1527	$cf::MAP{$self->path} = $self;
1528
1529	$self->save;
1530	}
1531
1532	sub reset {	1894	sub reset {
1533	my ($self) = @_;	1895	my ($self) = @_;
1534		1896
1535	my $lock = cf::lock_acquire "map_data:$self->{path}";	1897	my $lock = cf::lock_acquire "map_data:$self->{path}";
1536		1898
1537	return if $self->players;	1899	return if $self->players;
1538	return if $self->isa ("ext::map_per_player");#d#
1539		1900
1540	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	}
1541		1912
1542	delete $cf::MAP{$self->path};	1913	delete $cf::MAP{$self->path};
1543		1914
1544	$self->in_memory (cf::MAP_SWAPPED);
1545	$self->clear;	1915	$self->clear;
1546		1916
1547	$_->clear_links_to ($self) for values %cf::MAP;	1917	$_->clear_links_to ($self) for values %cf::MAP;
1548		1918
1549	$self->unlink_save;	1919	$self->unlink_save;
…		…
1553	my $nuke_counter = "aaaa";	1923	my $nuke_counter = "aaaa";
1554		1924
1555	sub nuke {	1925	sub nuke {
1556	my ($self) = @_;	1926	my ($self) = @_;
1557		1927
		1928	delete $cf::MAP{$self->path};
		1929
		1930	$self->unlink_save;
		1931
		1932	bless $self, "cf::map";
		1933	delete $self->{deny_reset};
1558	$self->{deny_save} = 1;	1934	$self->{deny_save} = 1;
1559	$self->reset_timeout (1);	1935	$self->reset_timeout (1);
1560	$self->rename ("{nuke}/" . ($nuke_counter++));	1936	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1937
		1938	$cf::MAP{$self->path} = $self;
		1939
1561	$self->reset; # polite request, might not happen	1940	$self->reset; # polite request, might not happen
		1941	}
		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	]
1562	}	1977	}
1563		1978
1564	=item cf::map::unique_maps	1979	=item cf::map::unique_maps
1565		1980
1566	Returns an arrayref of paths of all shared maps that have	1981	Returns an arrayref of paths of all shared maps that have
1567	instantiated unique items. May block.	1982	instantiated unique items. May block.
1568		1983
1569	=cut	1984	=cut
1570		1985
1571	sub unique_maps() {	1986	sub unique_maps() {
1572	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1987	[
1573	or return;	1988	map {
1574
1575	my @paths;
1576
1577	for (@$files) {
1578	utf8::decode $_;	1989	utf8::decode $_;
1579	next if /\.pst$/;
1580	next unless /^$PATH_SEP/o;
1581
1582	s/\.map$//;	1990	/\.map$/
1583	push @paths, $_;	1991	? normalise $_
		1992	: ()
		1993	} @{ aio_readdir $UNIQUEDIR or [] }
1584	}	1994	]
1585
1586	\@paths
1587	}	1995	}
1588		1996
1589	package cf;	1997	package cf;
1590		1998
1591	=back	1999	=back
…		…
1637		2045
1638	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2046	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1639		2047
1640	if ($self->{record_replies}) {	2048	if ($self->{record_replies}) {
1641	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2049	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2050
1642	} 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 {
1643	$msg = $npc->name . " says: $msg" if $npc;	2061	$msg = $npc->name . " says: $msg" if $npc;
1644	$self->message ($msg, $flags);	2062	$self->message ($msg, $flags);
		2063	}
1645	}	2064	}
1646	}	2065	}
1647		2066
1648	=item $player_object->may ("access")	2067	=item $player_object->may ("access")
1649		2068
…		…
1682	=cut	2101	=cut
1683		2102
1684	sub link_map {	2103	sub link_map {
1685	unless ($LINK_MAP) {	2104	unless ($LINK_MAP) {
1686	$LINK_MAP = cf::map::find "{link}"	2105	$LINK_MAP = cf::map::find "{link}"
1687	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2106	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1688	$LINK_MAP->load;	2107	$LINK_MAP->load;
1689	}	2108	}
1690		2109
1691	$LINK_MAP	2110	$LINK_MAP
1692	}	2111	}
…		…
1697	$self->deactivate_recursive;	2116	$self->deactivate_recursive;
1698		2117
1699	return if UNIVERSAL::isa $self->map, "ext::map_link";	2118	return if UNIVERSAL::isa $self->map, "ext::map_link";
1700		2119
1701	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2120	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1702	if $self->map;	2121	if $self->map && $self->map->{path} ne "{link}";
1703		2122
1704	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2123	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1705	}	2124	}
1706		2125
1707	sub cf::object::player::leave_link {	2126	sub cf::object::player::leave_link {
1708	my ($self, $map, $x, $y) = @_;	2127	my ($self, $map, $x, $y) = @_;
		2128
		2129	return unless $self->contr->active;
1709		2130
1710	my $link_pos = delete $self->{_link_pos};	2131	my $link_pos = delete $self->{_link_pos};
1711		2132
1712	unless ($map) {	2133	unless ($map) {
1713	# restore original map position	2134	# restore original map position
…		…
1731	$map->load;	2152	$map->load;
1732	$map->load_diag;	2153	$map->load_diag;
1733		2154
1734	return unless $self->contr->active;	2155	return unless $self->contr->active;
1735	$self->activate_recursive;	2156	$self->activate_recursive;
		2157
		2158	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1736	$self->enter_map ($map, $x, $y);	2159	$self->enter_map ($map, $x, $y);
1737	}	2160	}
1738		2161
1739	cf::player->attach (
1740	on_logout => sub {
1741	my ($pl) = @_;
1742
1743	# abort map switching before logout
1744	if ($pl->ob->{_link_pos}) {
1745	cf::sync_job {
1746	$pl->ob->leave_link
1747	};
1748	}
1749	},
1750	on_login => sub {
1751	my ($pl) = @_;
1752
1753	# try to abort aborted map switching on player login :)
1754	# should happen only on crashes
1755	if ($pl->ob->{_link_pos}) {
1756	$pl->ob->enter_link;
1757	(async {
1758	# we need this sleep as the login has a concurrent enter_exit running
1759	# and this sleep increases chances of the player not ending up in scorn
1760	$pl->ob->reply (undef,
1761	"There was an internal problem at your last logout, "
1762	. "the server will try to bring you to your intended destination in a second.",
1763	cf::NDI_RED);
1764	Coro::Timer::sleep 1;
1765	$pl->ob->leave_link;
1766	})->prio (2);
1767	}
1768	},
1769	);
1770
1771	=item $player_object->goto ($path, $x, $y)	2162	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1772		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
1773	=cut	2169	=cut
		2170
		2171	our $GOTOGEN;
1774		2172
1775	sub cf::object::player::goto {	2173	sub cf::object::player::goto {
1776	my ($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;
1777		2178
1778	$self->enter_link;	2179	$self->enter_link;
1779		2180
1780	(async {	2181	(async {
		2182	my $map = eval {
1781	my $map = cf::map::find $path;	2183	my $map = cf::map::find $path;
		2184
		2185	if ($map) {
1782	$map = $map->customise_for ($self) if $map;	2186	$map = $map->customise_for ($self);
1783		2187	$map = $check->($map) if $check && $map;
1784	# warn "entering ", $map->path, " at ($x, $y)\n"	2188	} else {
1785	# if $map;
1786
1787	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2189	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2190	}
1788		2191
		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 $@;
		2198	}
		2199
		2200	if ($gen == $self->{_goto_generation}) {
		2201	delete $self->{_goto_generation};
1789	$self->leave_link ($map, $x, $y);	2202	$self->leave_link ($map, $x, $y);
		2203	}
1790	})->prio (1);	2204	})->prio (1);
1791	}	2205	}
1792		2206
1793	=item $player_object->enter_exit ($exit_object)	2207	=item $player_object->enter_exit ($exit_object)
1794		2208
…		…
1796		2210
1797	sub parse_random_map_params {	2211	sub parse_random_map_params {
1798	my ($spec) = @_;	2212	my ($spec) = @_;
1799		2213
1800	my $rmp = { # defaults	2214	my $rmp = { # defaults
1801	xsize => 10,	2215	xsize => (cf::rndm 15, 40),
1802	ysize => 10,	2216	ysize => (cf::rndm 15, 40),
		2217	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2218	#layout => string,
1803	};	2219	};
1804		2220
1805	for (split /\n/, $spec) {	2221	for (split /\n/, $spec) {
1806	my ($k, $v) = split /\s+/, $_, 2;	2222	my ($k, $v) = split /\s+/, $_, 2;
1807		2223
…		…
1811	$rmp	2227	$rmp
1812	}	2228	}
1813		2229
1814	sub prepare_random_map {	2230	sub prepare_random_map {
1815	my ($exit) = @_;	2231	my ($exit) = @_;
		2232
		2233	my $guard = cf::lock_acquire "exit_prepare:$exit";
1816		2234
1817	# all this does is basically replace the /! path by	2235	# all this does is basically replace the /! path by
1818	# a new random map path (?random/...) with a seed	2236	# a new random map path (?random/...) with a seed
1819	# that depends on the exit object	2237	# that depends on the exit object
1820		2238
1821	my $rmp = parse_random_map_params $exit->msg;	2239	my $rmp = parse_random_map_params $exit->msg;
1822		2240
1823	if ($exit->map) {	2241	if ($exit->map) {
1824	$rmp->{region} = $exit->map->region_name;	2242	$rmp->{region} = $exit->region->name;
1825	$rmp->{origin_map} = $exit->map->path;	2243	$rmp->{origin_map} = $exit->map->path;
1826	$rmp->{origin_x} = $exit->x;	2244	$rmp->{origin_x} = $exit->x;
1827	$rmp->{origin_y} = $exit->y;	2245	$rmp->{origin_y} = $exit->y;
1828	}	2246	}
1829		2247
1830	$rmp->{random_seed} ||= $exit->random_seed;	2248	$rmp->{random_seed} ||= $exit->random_seed;
1831		2249
1832	my $data = cf::to_json $rmp;	2250	my $data = cf::to_json $rmp;
1833	my $md5 = Digest::MD5::md5_hex $data;	2251	my $md5 = Digest::MD5::md5_hex $data;
		2252	my $meta = "$RANDOMDIR/$md5.meta";
1834		2253
1835	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2254	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1836	aio_write $fh, 0, (length $data), $data, 0;	2255	aio_write $fh, 0, (length $data), $data, 0;
		2256	undef $fh;
		2257	aio_rename "$meta~", $meta;
1837		2258
1838	$exit->slaying ("?random/$md5");	2259	$exit->slaying ("?random/$md5");
1839	$exit->msg (undef);	2260	$exit->msg (undef);
1840	}	2261	}
1841	}	2262	}
1842		2263
1843	sub cf::object::player::enter_exit {	2264	sub cf::object::player::enter_exit {
1844	my ($self, $exit) = @_;	2265	my ($self, $exit) = @_;
1845		2266
1846	return unless $self->type == cf::PLAYER;	2267	return unless $self->type == cf::PLAYER;
		2268
		2269	if ($exit->slaying eq "/!") {
		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
		2273	cf::sync_job { prepare_random_map $exit };
		2274	}
		2275
		2276	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2277	my $hp = $exit->stats->hp;
		2278	my $sp = $exit->stats->sp;
1847		2279
1848	$self->enter_link;	2280	$self->enter_link;
1849		2281
1850	(async {	2282	(async {
1851	$self->deactivate_recursive; # just to be sure	2283	$self->deactivate_recursive; # just to be sure
1852	unless (eval {	2284	unless (eval {
1853	prepare_random_map $exit	2285	$self->goto ($slaying, $hp, $sp);
1854	if $exit->slaying eq "/!";
1855
1856	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1857	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1858		2286
1859	1;	2287	1;
1860	}) {	2288	}) {
1861	$self->message ("Something went wrong deep within the crossfire server. "	2289	$self->message ("Something went wrong deep within the crossfire server. "
1862	. "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. "
1863	. "Please report this to the dungeon master!",	2291	. "Please report this to the dungeon master!",
1864	cf::NDI_UNIQUE | cf::NDI_RED);	2292	cf::NDI_UNIQUE | cf::NDI_RED);
1865		2293
1866	warn "ERROR in enter_exit: $@";	2294	warn "ERROR in enter_exit: $@";
1867	$self->leave_link;	2295	$self->leave_link;
1868	}	2296	}
1869	})->prio (1);	2297	})->prio (1);
…		…
1882		2310
1883	sub cf::client::send_drawinfo {	2311	sub cf::client::send_drawinfo {
1884	my ($self, $text, $flags) = @_;	2312	my ($self, $text, $flags) = @_;
1885		2313
1886	utf8::encode $text;	2314	utf8::encode $text;
1887	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2315	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1888	}	2316	}
1889		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	}
1890		2330
1891	=item $success = $client->query ($flags, "text", \&cb)	2331	=item $success = $client->query ($flags, "text", \&cb)
1892		2332
1893	Queues a query to the client, calling the given callback with	2333	Queues a query to the client, calling the given callback with
1894	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>,
…		…
1923	# get handled first	2363	# get handled first
1924	my $queue = delete $ns->{query_queue}	2364	my $queue = delete $ns->{query_queue}
1925	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
1926		2366
1927	(shift @$queue)->[1]->($msg);	2367	(shift @$queue)->[1]->($msg);
		2368	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1928		2369
1929	push @{ $ns->{query_queue} }, @$queue;	2370	push @{ $ns->{query_queue} }, @$queue;
1930		2371
1931	if (@{ $ns->{query_queue} } == @$queue) {	2372	if (@{ $ns->{query_queue} } == @$queue) {
1932	if (@$queue) {	2373	if (@$queue) {
…		…
1990		2431
1991	# here we export the classes and methods available to script code	2432	# here we export the classes and methods available to script code
1992		2433
1993	=pod	2434	=pod
1994		2435
1995	The following fucntions and emthods are available within a safe environment:	2436	The following functions and methods are available within a safe environment:
1996		2437
1997	cf::object contr pay_amount pay_player map	2438	cf::object contr pay_amount pay_player map
1998	cf::object::player player	2439	cf::object::player player
1999	cf::player peaceful	2440	cf::player peaceful
2000	cf::map trigger	2441	cf::map trigger
…		…
2081	=back	2522	=back
2082		2523
2083	=cut	2524	=cut
2084		2525
2085	#############################################################################	2526	#############################################################################
		2527	# the server's init and main functions
2086		2528
2087	=head2 EXTENSION DATABASE SUPPORT	2529	sub load_facedata($) {
		2530	my ($path) = @_;
2088		2531
2089	Crossfire maintains a very simple database for extension use. It can	2532	warn "loading facedata from $path\n";
2090	currently store anything that can be serialised using Storable, which
2091	excludes objects.
2092		2533
2093	The parameter C<$family> should best start with the name of the extension	2534	my $facedata;
2094	using it, it should be unique.	2535	0 < aio_load $path, $facedata
		2536	or die "$path: $!";
2095		2537
2096	=over 4	2538	$facedata = Coro::Storable::thaw $facedata;
2097		2539
2098	=item $hashref = cf::db_get $family	2540	$facedata->{version} == 2
		2541	or cf::cleanup "$path: version mismatch, cannot proceed.";
2099		2542
2100	Return a hashref for use by the extension C<$family>, which can be
2101	modified. After modifications, you have to call C<cf::db_dirty> or
2102	C<cf::db_sync>.
2103
2104	=item $value = cf::db_get $family => $key
2105
2106	Returns a single value from the database
2107
2108	=item cf::db_put $family => $hashref
2109
2110	Stores the given family hashref into the database. Updates are delayed, if
2111	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2112
2113	=item cf::db_put $family => $key => $value
2114
2115	Stores the given C<$value> in the family hash. Updates are delayed, if you
2116	want the data to be synced to disk immediately, use C<cf::db_sync>.
2117
2118	=item cf::db_dirty
2119
2120	Marks the database as dirty, to be updated at a later time.
2121
2122	=item cf::db_sync
2123
2124	Immediately write the database to disk I<if it is dirty>.
2125
2126	=cut
2127
2128	our $DB;
2129
2130	{
2131	my $path = cf::localdir . "/database.pst";
2132
2133	sub db_load() {
2134	$DB = stat $path ? Storable::retrieve $path : { };
2135	}	2543	{
		2544	my $faces = $facedata->{faceinfo};
2136		2545
2137	my $pid;	2546	while (my ($face, $info) = each %$faces) {
2138		2547	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2139	sub db_save() {	2548	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2140	waitpid $pid, 0 if $pid;	2549	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2141	if (0 == ($pid = fork)) {	2550	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2142	$DB->{_meta}{version} = 1;	2551	Coro::cede;
2143	Storable::nstore $DB, "$path~";
2144	rename "$path~", $path;
2145	cf::_exit 0 if defined $pid;
2146	}
2147	}
2148
2149	my $dirty;
2150
2151	sub db_sync() {
2152	db_save if $dirty;
2153	undef $dirty;
2154	}
2155
2156	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2157	db_sync;
2158	});
2159
2160	sub db_dirty() {
2161	$dirty = 1;
2162	$idle->start;
2163	}
2164
2165	sub db_get($;$) {
2166	@_ >= 2
2167	? $DB->{$_[0]}{$_[1]}
2168	: ($DB->{$_[0]} ||= { })
2169	}
2170
2171	sub db_put($$;$) {
2172	if (@_ >= 3) {
2173	$DB->{$_[0]}{$_[1]} = $_[2];
2174	} else {
2175	$DB->{$_[0]} = $_[1];
2176	}
2177	db_dirty;
2178	}
2179
2180	cf::global->attach (
2181	prio => 10000,
2182	on_cleanup => sub {
2183	db_sync;
2184	},	2552	}
2185	);
2186	}
2187		2553
2188	#############################################################################	2554	while (my ($face, $info) = each %$faces) {
2189	# 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	}
2190		2616
2191	sub cfg_load {	2617	sub cfg_load {
2192	open my $fh, "<:utf8", cf::confdir . "/config"	2618	open my $fh, "<:utf8", "$CONFDIR/config"
2193	or return;	2619	or return;
2194		2620
2195	local $/;	2621	local $/;
2196	*CFG = YAML::Syck::Load <$fh>;	2622	*CFG = YAML::Syck::Load <$fh>;
2197		2623
…		…
2211		2637
2212	sub main {	2638	sub main {
2213	# we must not ever block the main coroutine	2639	# we must not ever block the main coroutine
2214	local $Coro::idle = sub {	2640	local $Coro::idle = sub {
2215	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2641	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2642	(async {
2216	async { Event::one_event };	2643	Event::one_event;
		2644	})->prio (Coro::PRIO_MAX);
2217	};	2645	};
2218		2646
2219	cfg_load;	2647	cfg_load;
2220	db_load;	2648	db_init;
2221	load_extensions;	2649	load_extensions;
		2650
		2651	$TICK_WATCHER->start;
2222	Event::loop;	2652	Event::loop;
2223	}	2653	}
2224		2654
2225	#############################################################################	2655	#############################################################################
2226	# initialisation and cleanup	2656	# initialisation and cleanup
2227		2657
2228	# install some emergency cleanup handlers	2658	# install some emergency cleanup handlers
2229	BEGIN {	2659	BEGIN {
2230	for my $signal (qw(INT HUP TERM)) {	2660	for my $signal (qw(INT HUP TERM)) {
2231	Event->signal (	2661	Event->signal (
		2662	reentrant => 0,
2232	data => WF_AUTOCANCEL,	2663	data => WF_AUTOCANCEL,
2233	signal => $signal,	2664	signal => $signal,
		2665	prio => 0,
2234	cb => sub {	2666	cb => sub {
2235	cf::cleanup "SIG$signal";	2667	cf::cleanup "SIG$signal";
2236	},	2668	},
2237	);	2669	);
2238	}	2670	}
		2671	}
		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
2239	}	2709	}
2240		2710
2241	sub emergency_save() {	2711	sub emergency_save() {
2242	my $freeze_guard = cf::freeze_mainloop;	2712	my $freeze_guard = cf::freeze_mainloop;
2243		2713
…		…
2260	my $map = $cf::MAP{$path} or next;	2730	my $map = $cf::MAP{$path} or next;
2261	$map->valid or next;	2731	$map->valid or next;
2262	$map->save;	2732	$map->save;
2263	}	2733	}
2264	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 $DB_ENV;
		2738	warn "end emergency database checkpoint\n";
2265	};	2739	};
2266		2740
2267	warn "leave emergency perl save\n";	2741	warn "leave emergency perl save\n";
2268	}	2742	}
2269		2743
		2744	sub post_cleanup {
		2745	my ($make_core) = @_;
		2746
		2747	warn Carp::longmess "post_cleanup backtrace"
		2748	if $make_core;
		2749	}
		2750
2270	sub reload() {	2751	sub do_reload_perl() {
2271	# can/must only be called in main	2752	# can/must only be called in main
2272	if ($Coro::current != $Coro::main) {	2753	if ($Coro::current != $Coro::main) {
2273	warn "can only reload from main coroutine\n";	2754	warn "can only reload from main coroutine";
2274	return;	2755	return;
2275	}	2756	}
2276		2757
2277	warn "reloading...";	2758	warn "reloading...";
2278		2759
2279	warn "freezing server";	2760	warn "entering sync_job";
2280	my $guard = freeze_mainloop;	2761
		2762	cf::sync_job {
		2763	cf::write_runtime; # external watchdog should not bark
2281	cf::emergency_save;	2764	cf::emergency_save;
		2765	cf::write_runtime; # external watchdog should not bark
2282		2766
2283	warn "sync database to disk";	2767	warn "syncing database to disk";
2284	cf::db_sync;	2768	BDB::db_env_txn_checkpoint $DB_ENV;
2285	IO::AIO::flush;
2286		2769
2287	eval {
2288	# 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
2289		2771
2290	warn "cancel all watchers";	2772	warn "cancelling all WF_AUTOCANCEL watchers";
2291	for (Event::all_watchers) {	2773	for (Event::all_watchers) {
2292	$_->cancel if $_->data & WF_AUTOCANCEL;	2774	$_->cancel if $_->data & WF_AUTOCANCEL;
2293	}	2775	}
2294		2776
		2777	warn "flushing outstanding aio requests";
		2778	for (;;) {
		2779	BDB::flush;
		2780	IO::AIO::flush;
		2781	Coro::cede;
		2782	last unless IO::AIO::nreqs || BDB::nreqs;
		2783	warn "iterate...";
		2784	}
		2785
		2786	++$RELOAD;
		2787
2295	warn "cancel all extension coros";	2788	warn "cancelling all extension coros";
2296	$_->cancel for values %EXT_CORO;	2789	$_->cancel for values %EXT_CORO;
2297	%EXT_CORO = ();	2790	%EXT_CORO = ();
2298		2791
2299	warn "remove commands";	2792	warn "removing commands";
2300	%COMMAND = ();	2793	%COMMAND = ();
2301		2794
2302	warn "remove ext commands";	2795	warn "removing ext commands";
2303	%EXTCMD = ();	2796	%EXTCMD = ();
2304		2797
2305	warn "unload/nuke all extensions";	2798	warn "unloading/nuking all extensions";
2306	for my $pkg (@EXTS) {	2799	for my $pkg (@EXTS) {
2307	warn "... unloading $pkg";	2800	warn "... unloading $pkg";
2308		2801
2309	if (my $cb = $pkg->can ("unload")) {	2802	if (my $cb = $pkg->can ("unload")) {
2310	eval {	2803	eval {
…		…
2315		2808
2316	warn "... nuking $pkg";	2809	warn "... nuking $pkg";
2317	Symbol::delete_package $pkg;	2810	Symbol::delete_package $pkg;
2318	}	2811	}
2319		2812
2320	warn "unload all perl modules loaded from $LIBDIR";	2813	warn "unloading all perl modules loaded from $LIBDIR";
2321	while (my ($k, $v) = each %INC) {	2814	while (my ($k, $v) = each %INC) {
2322	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2815	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2323		2816
2324	warn "removing <$k>";	2817	warn "... unloading $k";
2325	delete $INC{$k};	2818	delete $INC{$k};
2326		2819
2327	$k =~ s/\.pm$//;	2820	$k =~ s/\.pm$//;
2328	$k =~ s/\//::/g;	2821	$k =~ s/\//::/g;
2329		2822
…		…
2332	}	2825	}
2333		2826
2334	Symbol::delete_package $k;	2827	Symbol::delete_package $k;
2335	}	2828	}
2336		2829
2337	warn "get rid of safe::, as good as possible";	2830	warn "getting rid of safe::, as good as possible";
2338	Symbol::delete_package "safe::$_"	2831	Symbol::delete_package "safe::$_"
2339	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);
2340		2833
2341	warn "unload cf.pm \"a bit\"";	2834	warn "unloading cf.pm \"a bit\"";
2342	delete $INC{"cf.pm"};	2835	delete $INC{"cf.pm"};
		2836	delete $INC{"cf/pod.pm"};
2343		2837
2344	# don't, removes xs symbols, too,	2838	# don't, removes xs symbols, too,
2345	# and global variables created in xs	2839	# and global variables created in xs
2346	#Symbol::delete_package __PACKAGE__;	2840	#Symbol::delete_package __PACKAGE__;
2347		2841
		2842	warn "unload completed, starting to reload now";
		2843
2348	warn "reloading cf.pm";	2844	warn "reloading cf.pm";
2349	require cf;	2845	require cf;
2350	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2846	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2351		2847
2352	warn "load config and database again";	2848	warn "loading config and database again";
2353	cf::cfg_load;	2849	cf::cfg_load;
2354	cf::db_load;
2355		2850
2356	warn "load extensions";	2851	warn "loading extensions";
2357	cf::load_extensions;	2852	cf::load_extensions;
2358		2853
2359	warn "reattach attachments to objects/players";	2854	warn "reattaching attachments to objects/players";
2360	_global_reattach;	2855	_global_reattach; # objects, sockets
2361	warn "reattach attachments to maps";	2856	warn "reattaching attachments to maps";
2362	reattach $_ for values %MAP;	2857	reattach $_ for values %MAP;
2363	};	2858	warn "reattaching attachments to players";
		2859	reattach $_ for values %PLAYER;
2364		2860
2365	if ($@) {	2861	warn "leaving sync_job";
		2862
		2863	1
		2864	} or do {
2366	warn $@;	2865	warn $@;
2367	warn "error while reloading, exiting.";	2866	warn "error while reloading, exiting.";
2368	exit 1;	2867	exit 1;
2369	}	2868	};
2370		2869
2371	warn "reloaded";	2870	warn "reloaded";
2372	};	2871	};
2373		2872
		2873	our $RELOAD_WATCHER; # used only during reload
		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 $RELOAD_WATCHER;
		2886	},
		2887	);
		2888	}
		2889
2374	register_command "reload" => sub {	2890	register_command "reload" => sub {
2375	my ($who, $arg) = @_;	2891	my ($who, $arg) = @_;
2376		2892
2377	if ($who->flag (FLAG_WIZ)) {	2893	if ($who->flag (FLAG_WIZ)) {
2378	$who->message ("start of reload.");
2379	reload;
2380	$who->message ("end of reload.");	2894	$who->message ("reloading server.");
		2895	async { reload_perl };
2381	}	2896	}
2382	};	2897	};
2383		2898
2384	unshift @INC, $LIBDIR;	2899	unshift @INC, $LIBDIR;
2385		2900
		2901	my $bug_warning = 0;
		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;
2386	$TICK_WATCHER = Event->timer (	2926	$TICK_WATCHER = Event->timer (
2387	reentrant => 0,	2927	reentrant => 0,
		2928	parked => 1,
2388	prio => 0,	2929	prio => 0,
2389	at => $NEXT_TICK || $TICK,	2930	at => $NEXT_TICK || $TICK,
2390	data => WF_AUTOCANCEL,	2931	data => WF_AUTOCANCEL,
2391	cb => sub {	2932	cb => sub {
		2933	if ($Coro::current != $Coro::main) {
		2934	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2935	unless ++$bug_warning > 10;
		2936	return;
		2937	}
		2938
2392	$NOW = Event::time;	2939	$NOW = $tick_start = Event::time;
2393		2940
2394	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
2395	$RUNTIME += $TICK;	2966	$RUNTIME += $TICK;
2396	$NEXT_TICK += $TICK;	2967	$NEXT_TICK += $TICK;
2397		2968
2398	$WAIT_FOR_TICK->broadcast;	2969	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2399	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2970	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2971	Coro::async_pool {
		2972	write_runtime
		2973	or warn "ERROR: unable to write runtime file: $!";
		2974	};
		2975	}
		2976
		2977	# my $AFTER = Event::time;
		2978	# warn $AFTER - $NOW;#d#
		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;
2400		2988
2401	# 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
2402	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2990	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2403		2991
2404	$TICK_WATCHER->at ($NEXT_TICK);	2992	$TICK_WATCHER->at ($NEXT_TICK);
2405	$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
2406	},	3001	},
2407	);	3002	);
2408		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;
2409	IO::AIO::max_poll_time $TICK * 0.2;	3058	IO::AIO::max_poll_time $TICK * 0.1;
2410
2411	$AIO_POLL_WATCHER = Event->io (	3059	$AIO_POLL_WATCHER = Event->io (
2412	fd => IO::AIO::poll_fileno,	3060	reentrant => 0,
2413	poll => 'r',
2414	prio => 5,
2415	data => WF_AUTOCANCEL,
2416	cb => \&IO::AIO::poll_cb,
2417	);
2418
2419	$WRITE_RUNTIME_WATCHER = Event->timer (
2420	data => WF_AUTOCANCEL,	3061	data => WF_AUTOCANCEL,
2421	after => 0,	3062	fd => IO::AIO::poll_fileno,
2422	interval => 10,	3063	poll => 'r',
2423	cb => sub {	3064	prio => 6,
2424	(Coro::unblock_sub {	3065	cb => \&IO::AIO::poll_cb,
2425	write_runtime	3066	);
2426	or warn "ERROR: unable to write runtime file: $!";	3067	}
		3068
		3069	my $_log_backtrace;
		3070
		3071	sub _log_backtrace {
		3072	my ($msg, @addr) = @_;
		3073
		3074	$msg =~ s/\n//;
		3075
		3076	# limit the # of concurrent backtraces
		3077	if ($_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;
2427	})->();	3100	};
		3101	} else {
		3102	LOG llevInfo, "[ABT] $msg\n";
		3103	LOG llevInfo, "[ABT] [suppressed]\n";
2428	},	3104	}
2429	);	3105	}
		3106
		3107	# load additional modules
		3108	use cf::pod;
2430		3109
2431	END { cf::emergency_save }	3110	END { cf::emergency_save }
2432		3111
2433	1	3112	1
2434		3113

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