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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.160 by root, Wed Jan 10 22:54:06 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
		55	our %EXT_MAP = (); # pluggable maps
42		56
		57	our $RELOAD; # number of reloads so far
43	our @EVENT;	58	our @EVENT;
44	our $LIBDIR = datadir . "/ext";
45		59
46	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(!)
47	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
48	our $NEXT_TICK;	76	our $NEXT_TICK;
49	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;
50		82
51	our %CFG;	83	our %CFG;
52		84
53	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
54	our $RUNTIME;	86	our $RUNTIME;
55		87
56	our %PLAYER; # all users	88	our %PLAYER; # all users
57	our %MAP; # all maps	89	our %MAP; # all maps
58	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
59	our $RANDOM_MAPS = cf::localdir . "/random";
60		91
61	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
62	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		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 $tick_start; # for load detecting purposes
63		98
64	binmode STDOUT;	99	binmode STDOUT;
65	binmode STDERR;	100	binmode STDERR;
66		101
67	# read virtual server time, if available	102	# read virtual server time, if available
68	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
69	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
70	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
71	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
72	}	107	}
73		108
74	mkdir cf::localdir;	109	mkdir $_
75	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76	mkdir cf::localdir . "/" . cf::tmpdir;
77	mkdir cf::localdir . "/" . cf::uniquedir;
78	mkdir $RANDOM_MAPS;
79		111
80	# a special map that is always available
81	our $LINK_MAP;
82	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
83		115
84	#############################################################################	116	#############################################################################
85		117
86	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
87		119
…		…
94	=item $cf::RUNTIME	126	=item $cf::RUNTIME
95		127
96	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
97	every server tick.	129	every server tick.
98		130
99	=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
100		134
101	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
102	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.
103		139
104	=item $cf::NOW	140	=item $cf::NOW
105		141
106	The time of the last (current) server tick.	142	The time of the last (current) server tick.
107		143
108	=item $cf::TICK	144	=item $cf::TICK
109		145
110	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.
111		157
112	=item %cf::CFG	158	=item %cf::CFG
113		159
114	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
115	from wherever your confdir points to.	161	from wherever your confdir points to.
116		162
117	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
118		164
119	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
120	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
121	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.
122	window of cpu time available, or simply to synchronise to the server tick.
123		168
124	=back	169	=back
125		170
126	=cut	171	=cut
127		172
128	BEGIN {	173	BEGIN {
129	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
130	my $msg = join "", @_;	175	my $msg = join "", @_;
131	utf8::encode $msg;
132		176
133	$msg .= "\n"	177	$msg .= "\n"
134	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
135		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
136	LOG llevError, $msg;	183	LOG llevError, $msg;
137	};	184	};
138	}	185	}
139		186
140	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
141	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
142	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
143	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
144	@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';
145	@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)
146		194
147	# 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
148	# within the Safe compartment.	196	# within the Safe compartment.
149	for my $pkg (qw(	197	for my $pkg (qw(
150	cf::global cf::attachable	198	cf::global cf::attachable
…		…
158	}	206	}
159		207
160	$Event::DIED = sub {	208	$Event::DIED = sub {
161	warn "error in event callback: @_";	209	warn "error in event callback: @_";
162	};	210	};
		211
		212	#############################################################################
163		213
164	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
165		215
166	=over 4	216	=over 4
167		217
…		…
186	$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;
187	$d	237	$d
188	} || "[unable to dump $_[0]: '$@']";	238	} || "[unable to dump $_[0]: '$@']";
189	}	239	}
190		240
191	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
192		242
193	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
194		244
195	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
196		246
197	=cut
198
199	sub from_json($) {
200	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
201	JSON::Syck::Load $_[0]
202	}
203
204	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
205		248
206	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
207
208	=cut
209
210	sub to_json($) {
211	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
212	JSON::Syck::Dump $_[0]
213	}
214		250
215	=item cf::lock_wait $string	251	=item cf::lock_wait $string
216		252
217	Wait until the given lock is available. See cf::lock_acquire.	253	Wait until the given lock is available. See cf::lock_acquire.
218		254
…		…
224	returned.	260	returned.
225		261
226	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
227	uses map_find and cf::map::load uses map_load).	263	uses map_find and cf::map::load uses map_load).
228		264
		265	=item $locked = cf::lock_active $string
		266
		267	Return true if the lock is currently active, i.e. somebody has locked it.
		268
229	=cut	269	=cut
230		270
231	our %LOCK;	271	our %LOCK;
232		272
233	sub lock_wait($) {	273	sub lock_wait($) {
…		…
252	# wake up all waiters, to be on the safe side	292	# wake up all waiters, to be on the safe side
253	$_->ready for @{ delete $LOCK{$key} };	293	$_->ready for @{ delete $LOCK{$key} };
254	}	294	}
255	}	295	}
256		296
		297	sub lock_active($) {
		298	my ($key) = @_;
		299
		300	! ! $LOCK{$key}
		301	}
		302
257	sub freeze_mainloop {	303	sub freeze_mainloop {
258	return unless $TICK_WATCHER->is_active;	304	return unless $TICK_WATCHER->is_active;
259		305
260	my $guard = Coro::guard { $TICK_WATCHER->start };	306	my $guard = Coro::guard {
		307	$TICK_WATCHER->start;
		308	};
261	$TICK_WATCHER->stop;	309	$TICK_WATCHER->stop;
262	$guard	310	$guard
263	}	311	}
264		312
265	=item cf::async { BLOCK }	313	=item cf::async { BLOCK }
…		…
272		320
273	BEGIN { *async = \&Coro::async_pool }	321	BEGIN { *async = \&Coro::async_pool }
274		322
275	=item cf::sync_job { BLOCK }	323	=item cf::sync_job { BLOCK }
276		324
277	The design of crossfire+ requires that the main coro ($Coro::main) is	325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
278	always able to handle events or runnable, as crossfire+ is only partly	326	is always able to handle events or runnable, as Crossfire TRT is only
279	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
280		329
281	If it must be done, put the blocking parts into C<sync_job>. This will run	330	If it must be done, put the blocking parts into C<sync_job>. This will run
282	the given BLOCK in another coroutine while waiting for the result. The	331	the given BLOCK in another coroutine while waiting for the result. The
283	server will be frozen during this time, so the block should either finish	332	server will be frozen during this time, so the block should either finish
284	fast or be very important.	333	fast or be very important.
…		…
287		336
288	sub sync_job(&) {	337	sub sync_job(&) {
289	my ($job) = @_;	338	my ($job) = @_;
290		339
291	if ($Coro::current == $Coro::main) {	340	if ($Coro::current == $Coro::main) {
		341	my $time = Event::time;
		342
292	# this is the main coro, too bad, we have to block	343	# this is the main coro, too bad, we have to block
293	# till the operation succeeds, freezing the server :/	344	# till the operation succeeds, freezing the server :/
294		345
295	# TODO: use suspend/resume instead	346	# TODO: use suspend/resume instead
296	# (but this is cancel-safe)	347	# (but this is cancel-safe)
…		…
307		358
308	while ($busy) {	359	while ($busy) {
309	Coro::cede or Event::one_event;	360	Coro::cede or Event::one_event;
310	}	361	}
311		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
312	wantarray ? @res : $res[0]	370	wantarray ? @res : $res[0]
313	} else {	371	} else {
314	# we are in another coroutine, how wonderful, everything just works	372	# we are in another coroutine, how wonderful, everything just works
315		373
316	$job->()	374	$job->()
…		…
335	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
336		394
337	$coro	395	$coro
338	}	396	}
339		397
340	sub write_runtime {	398	=item fork_call { }, $args
341	my $runtime = cf::localdir . "/runtime";
342		399
343	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	400	Executes the given code block with the given arguments in a seperate
344	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.
345		404
346	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	405	=cut
347	(aio_write $fh, 0, (length $value), $value, 0) <= 0
348	and return;
349		406
350	aio_fsync $fh	407	sub fork_call(&@) {
351	and return;	408	my ($cb, @args) = @_;
352		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) {
353	close $fh	416	close $fh2;
354	or return;
355		417
356	aio_rename "$runtime~", $runtime	418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
357	and return;	419	$res = Coro::Storable::thaw $res;
358		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
359	1	439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		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 });
360	}	567	}
361		568
362	=back	569	=back
363		570
364	=cut	571	=cut
365
366	#############################################################################
367
368	package cf::path;
369
370	use overload
371	'""' => \&as_string;
372
373	# used to convert map paths into valid unix filenames by repalcing / by ∕
374	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
375
376	sub new {
377	my ($class, $path, $base) = @_;
378
379	$path = $path->as_string if ref $path;
380
381	my $self = bless { }, $class;
382
383	# {... are special paths that are not touched
384	# ?xxx/... are special absolute paths
385	# ?random/... random maps
386	# /! non-realised random map exit
387	# /... normal maps
388	# ~/... per-player maps without a specific player (DO NOT USE)
389	# ~user/... per-player map of a specific user
390
391	$path =~ s/$PATH_SEP/\//go;
392
393	if ($path =~ /^{/) {
394	# fine as it is
395	} elsif ($path =~ s{^\?random/}{}) {
396	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
397	$self->{random} = cf::from_json $data;
398	} else {
399	if ($path =~ s{^~([^/]+)?}{}) {
400	$self->{user_rel} = 1;
401
402	if (defined $1) {
403	$self->{user} = $1;
404	} elsif ($base =~ m{^~([^/]+)/}) {
405	$self->{user} = $1;
406	} else {
407	warn "cannot resolve user-relative path without user <$path,$base>\n";
408	}
409	} elsif ($path =~ /^\//) {
410	# already absolute
411	} else {
412	$base =~ s{[^/]+/?$}{};
413	return $class->new ("$base/$path");
414	}
415
416	for ($path) {
417	redo if s{/\.?/}{/};
418	redo if s{/[^/]+/\.\./}{/};
419	}
420	}
421
422	$self->{path} = $path;
423
424	$self
425	}
426
427	# the name / primary key / in-game path
428	sub as_string {
429	my ($self) = @_;
430
431	$self->{user_rel} ? "~$self->{user}$self->{path}"
432	: $self->{random} ? "?random/$self->{path}"
433	: $self->{path}
434	}
435
436	# the displayed name, this is a one way mapping
437	sub visible_name {
438	my ($self) = @_;
439
440	# if (my $rmp = $self->{random}) {
441	# # todo: be more intelligent about this
442	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
443	# } else {
444	$self->as_string
445	# }
446	}
447
448	# escape the /'s in the path
449	sub _escaped_path {
450	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
451	$path
452	}
453
454	# the original (read-only) location
455	sub load_path {
456	my ($self) = @_;
457
458	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
459	}
460
461	# the temporary/swap location
462	sub save_path {
463	my ($self) = @_;
464
465	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
466	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
467	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
468	}
469
470	# the unique path, might be eq to save_path
471	sub uniq_path {
472	my ($self) = @_;
473
474	$self->{user_rel} || $self->{random}
475	? undef
476	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
477	}
478
479	# return random map parameters, or undef
480	sub random_map_params {
481	my ($self) = @_;
482
483	$self->{random}
484	}
485
486	# this is somewhat ugly, but style maps do need special treatment
487	sub is_style_map {
488	$_[0]{path} =~ m{^/styles/}
489	}
490
491	package cf;
492		572
493	#############################################################################	573	#############################################################################
494		574
495	=head2 ATTACHABLE OBJECTS	575	=head2 ATTACHABLE OBJECTS
496		576
…		…
498	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")
499	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
500		580
501	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>
502	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
503	crossfire+).	583	Crossfire TRT).
504		584
505	=over 4	585	=over 4
506		586
507	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
508		588
…		…
622	our @CB_TYPE = (); # registry for type (cf-object class) based events	702	our @CB_TYPE = (); # registry for type (cf-object class) based events
623	our @CB_MAP = ();	703	our @CB_MAP = ();
624		704
625	my %attachment;	705	my %attachment;
626		706
		707	sub cf::attachable::thawer_merge {
		708	# simply override everything except _meta
		709	local $_[0]{_meta};
		710	%{$_[0]} = %{$_[1]};
		711	}
		712
627	sub _attach_cb($$$$) {	713	sub _attach_cb($$$$) {
628	my ($registry, $event, $prio, $cb) = @_;	714	my ($registry, $event, $prio, $cb) = @_;
629		715
630	use sort 'stable';	716	use sort 'stable';
631		717
…		…
665	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
666		752
667	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
668	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
669	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
670	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
671		757
672	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
673	my $pkg = shift @arg;	759	my $pkg = shift @arg;
674		760
675	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
704	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
705	}	791	}
706		792
707	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
708	} else {	794	} else {
709	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
710	}	796	}
711		797
712	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
713	}	799	}
714		800
…		…
716	if (ref $_[0]) {	802	if (ref $_[0]) {
717	_object_attach @_;	803	_object_attach @_;
718	} else {	804	} else {
719	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
720	}	806	}
		807	_recalc_want;
721	};	808	};
722		809
723	# all those should be optimised	810	# all those should be optimised
724	sub cf::attachable::detach {	811	sub cf::attachable::detach {
725	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
728	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
729	reattach ($obj);	816	reattach ($obj);
730	} else {	817	} else {
731	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
732	}	819	}
		820	_recalc_want;
733	};	821	};
734		822
735	sub cf::attachable::attached {	823	sub cf::attachable::attached {
736	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
737		825
…		…
802	# object support	890	# object support
803		891
804	sub reattach {	892	sub reattach {
805	# basically do the same as instantiate, without calling instantiate	893	# basically do the same as instantiate, without calling instantiate
806	my ($obj) = @_;	894	my ($obj) = @_;
		895
		896	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
807		897
808	my $registry = $obj->registry;	898	my $registry = $obj->registry;
809		899
810	@$registry = ();	900	@$registry = ();
811		901
…		…
858	$filename, length $$rdata, scalar @$objs;	948	$filename, length $$rdata, scalar @$objs;
859		949
860	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	950	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
861	chmod SAVE_MODE, $fh;	951	chmod SAVE_MODE, $fh;
862	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	952	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
863	aio_fsync $fh;	953	aio_fsync $fh if $cf::USE_FSYNC;
864	close $fh;	954	close $fh;
865		955
866	if (@$objs) {	956	if (@$objs) {
867	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) {
868	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
869	my $data = Storable::nfreeze { version => 1, objs => $objs };	959	my $data = Storable::nfreeze { version => 1, objs => $objs };
870	aio_write $fh, 0, (length $data), $data, 0;	960	aio_write $fh, 0, (length $data), $data, 0;
871	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
872	close $fh;	962	close $fh;
873	aio_rename "$filename.pst~", "$filename.pst";	963	aio_rename "$filename.pst~", "$filename.pst";
874	}	964	}
875	} else {	965	} else {
876	aio_unlink "$filename.pst";	966	aio_unlink "$filename.pst";
…		…
908	or return;	998	or return;
909	$av = eval { (Storable::thaw $av)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
910	}	1000	}
911		1001
912	warn sprintf "loading %s (%d)\n",	1002	warn sprintf "loading %s (%d)\n",
913	$filename, length $data, scalar @{$av || []};#d#	1003	$filename, length $data, scalar @{$av || []};
914	return ($data, $av);	1004	return ($data, $av);
915	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
916		1012
917	#############################################################################	1013	#############################################################################
918	# command handling &c	1014	# command handling &c
919		1015
920	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
933	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
934	}	1030	}
935		1031
936	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
937		1033
938	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.
939		1035
940	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
941	called.	1037	called.
942		1038
943	=cut	1039	=cut
…		…
978		1074
979	cf::override;	1075	cf::override;
980	},	1076	},
981	);	1077	);
982		1078
983	sub load_extension {
984	my ($path) = @_;
985
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991
992	warn "... loading '$path' into '$pkg'\n";
993
994	open my $fh, "<:utf8", $path
995	or die "$path: $!";
996
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @EXTS, $pkg;
1008	}
1009
1010	sub load_extensions {	1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
1011	for my $ext (<$LIBDIR/*.ext>) {	1083	for my $path (<$LIBDIR/*.ext>) {
1012	next unless -r $ext;	1084	next unless -r $path;
1013	eval {	1085
1014	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;
1015	1	1143	}
1016	} or warn "$ext not loaded: $@";	1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
1017	}	1149	};
1018	}	1150	}
1019		1151
1020	#############################################################################	1152	#############################################################################
1021	# load/save/clean perl data associated with a map
1022		1153
1023	*cf::mapsupport::on_clean = sub {	1154	=back
1024	my ($map) = @_;
1025
1026	my $path = $map->tmpname;
1027	defined $path or return;
1028
1029	unlink "$path.pst";
1030	};
1031
1032	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1033
1034	#############################################################################
1035		1155
1036	=head2 CORE EXTENSIONS	1156	=head2 CORE EXTENSIONS
1037		1157
1038	Functions and methods that extend core crossfire objects.	1158	Functions and methods that extend core crossfire objects.
1039		1159
…		…
1052	Returns the given player object, loading it if necessary (might block).	1172	Returns the given player object, loading it if necessary (might block).
1053		1173
1054	=cut	1174	=cut
1055		1175
1056	sub playerdir($) {	1176	sub playerdir($) {
1057	cf::localdir	1177	"$PLAYERDIR/"
1058	. "/"
1059	. cf::playerdir
1060	. "/"
1061	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1178	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1062	}	1179	}
1063		1180
1064	sub path($) {	1181	sub path($) {
1065	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1182	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1066		1183
1067	(playerdir $login) . "/$login.pl"	1184	(playerdir $login) . "/playerdata"
1068	}	1185	}
1069		1186
1070	sub find_active($) {	1187	sub find_active($) {
1071	$cf::PLAYER{$_[0]}	1188	$cf::PLAYER{$_[0]}
1072	and $cf::PLAYER{$_[0]}->active	1189	and $cf::PLAYER{$_[0]}->active
…		…
1075		1192
1076	sub exists($) {	1193	sub exists($) {
1077	my ($login) = @_;	1194	my ($login) = @_;
1078		1195
1079	$cf::PLAYER{$login}	1196	$cf::PLAYER{$login}
1080	or cf::sync_job { !aio_stat $login }	1197	or cf::sync_job { !aio_stat path $login }
1081	}	1198	}
1082		1199
1083	sub find($) {	1200	sub find($) {
1084	return $cf::PLAYER{$_[0]} || do {	1201	return $cf::PLAYER{$_[0]} || do {
1085	my $login = $_[0];	1202	my $login = $_[0];
1086		1203
1087	my $guard = cf::lock_acquire "user_find:$login";	1204	my $guard = cf::lock_acquire "user_find:$login";
1088		1205
1089	$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
1090	my $pl = load_pl path $login	1214	my $pl = load_pl path $login
1091	or return;	1215	or return;
1092	$cf::PLAYER{$login} = $pl	1216	$cf::PLAYER{$login} = $pl
1093	}	1217	}
1094	}	1218	}
…		…
1131		1255
1132	=cut	1256	=cut
1133		1257
1134	sub quit_character {	1258	sub quit_character {
1135	my ($pl) = @_;	1259	my ($pl) = @_;
		1260
		1261	my $name = $pl->ob->name;
1136		1262
1137	$pl->{deny_save} = 1;	1263	$pl->{deny_save} = 1;
1138	$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
1139		1265
1140	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1266	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1145	my $path = playerdir $pl;	1271	my $path = playerdir $pl;
1146	my $temp = "$path~$cf::RUNTIME~deleting~";	1272	my $temp = "$path~$cf::RUNTIME~deleting~";
1147	aio_rename $path, $temp;	1273	aio_rename $path, $temp;
1148	delete $cf::PLAYER{$pl->ob->name};	1274	delete $cf::PLAYER{$pl->ob->name};
1149	$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
1150	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;
1151	}	1297	}
1152		1298
1153	=item cf::player::list_logins	1299	=item cf::player::list_logins
1154		1300
1155	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
1156	while and may block, so not sync_job-capable, ever.	1302	while and may block, so not sync_job-capable, ever.
1157		1303
1158	=cut	1304	=cut
1159		1305
1160	sub list_logins {	1306	sub list_logins {
1161	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1307	my $dirs = aio_readdir $PLAYERDIR
1162	or return [];	1308	or return [];
1163		1309
1164	my @logins;	1310	my @logins;
1165		1311
1166	for my $login (@$dirs) {	1312	for my $login (@$dirs) {
…		…
1175	\@logins	1321	\@logins
1176	}	1322	}
1177		1323
1178	=item $player->maps	1324	=item $player->maps
1179		1325
1180	Returns an arrayref of cf::path's of all maps that are private for this	1326	Returns an arrayref of map paths that are private for this
1181	player. May block.	1327	player. May block.
1182		1328
1183	=cut	1329	=cut
1184		1330
1185	sub maps($) {	1331	sub maps($) {
1186	my ($pl) = @_;	1332	my ($pl) = @_;
		1333
		1334	$pl = ref $pl ? $pl->ob->name : $pl;
1187		1335
1188	my $files = aio_readdir playerdir $pl	1336	my $files = aio_readdir playerdir $pl
1189	or return;	1337	or return;
1190		1338
1191	my @paths;	1339	my @paths;
…		…
1193	for (@$files) {	1341	for (@$files) {
1194	utf8::decode $_;	1342	utf8::decode $_;
1195	next if /\.(?:pl|pst)$/;	1343	next if /\.(?:pl|pst)$/;
1196	next unless /^$PATH_SEP/o;	1344	next unless /^$PATH_SEP/o;
1197		1345
1198	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1346	push @paths, cf::map::normalise "~$pl/$_";
1199	}	1347	}
1200		1348
1201	\@paths	1349	\@paths
1202	}	1350	}
1203		1351
1204	=item $player->ext_reply ($msgid, $msgtype, %msg)	1352	=item $player->ext_reply ($msgid, %msg)
1205		1353
1206	Sends an ext reply to the player.	1354	Sends an ext reply to the player.
1207		1355
1208	=cut	1356	=cut
1209		1357
1210	sub ext_reply($$$%) {	1358	sub ext_reply($$%) {
1211	my ($self, $id, %msg) = @_;	1359	my ($self, $id, %msg) = @_;
1212		1360
1213	$msg{msgid} = $id;	1361	$msg{msgid} = $id;
1214		1362
1215	$self->send ("ext " . cf::to_json \%msg);	1363	$self->send ("ext " . cf::to_json \%msg);
1216	}	1364	}
1217		1365
1218	package cf;	1366	=item $player->ext_event ($type, %msg)
		1367
		1368	Sends an ext event to the client.
		1369
		1370	=cut
		1371
		1372	sub ext_event($$%) {
		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	}
1219		1406
1220	=back	1407	=back
1221
1222		1408
1223	=head3 cf::map	1409	=head3 cf::map
1224		1410
1225	=over 4	1411	=over 4
1226		1412
…		…
1229	package cf::map;	1415	package cf::map;
1230		1416
1231	use Fcntl;	1417	use Fcntl;
1232	use Coro::AIO;	1418	use Coro::AIO;
1233		1419
		1420	use overload
		1421	'""' => \&as_string,
		1422	fallback => 1;
		1423
1234	our $MAX_RESET = 3600;	1424	our $MAX_RESET = 3600;
1235	our $DEFAULT_RESET = 3000;	1425	our $DEFAULT_RESET = 3000;
1236		1426
1237	sub generate_random_map {	1427	sub generate_random_map {
1238	my ($path, $rmp) = @_;	1428	my ($self, $rmp) = @_;
1239
1240	# mit "rum" bekleckern, nicht	1429	# mit "rum" bekleckern, nicht
1241	cf::map::_create_random_map	1430	$self->_create_random_map (
1242	$path,
1243	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1431	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1244	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1432	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1245	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1433	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1246	$rmp->{exit_on_final_map},	1434	$rmp->{exit_on_final_map},
1247	$rmp->{xsize}, $rmp->{ysize},	1435	$rmp->{xsize}, $rmp->{ysize},
1248	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1436	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1249	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1437	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1250	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1438	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1251	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1439	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1252	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1440	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1253	(cf::region::find $rmp->{region})	1441	(cf::region::find $rmp->{region}), $rmp->{custom}
		1442	)
		1443	}
		1444
		1445	=item cf::map->register ($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
		1453	sub register {
		1454	my (undef, $regex, $prio) = @_;
		1455	my $pkg = caller;
		1456
		1457	no strict;
		1458	push @{"$pkg\::ISA"}, __PACKAGE__;
		1459
		1460	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1461	}
		1462
		1463	# also paths starting with '/'
		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	}
		1475
		1476	sub normalise {
		1477	my ($path, $base) = @_;
		1478
		1479	$path = "$path"; # make sure its a string
		1480
		1481	$path =~ s/\.map$//;
		1482
		1483	# map plan:
		1484	#
		1485	# /! non-realised random map exit (special hack!)
		1486	# {... are special paths that are not being touched
		1487	# ?xxx/... are special absolute paths
		1488	# ?random/... random maps
		1489	# /... normal maps
		1490	# ~user/... per-player map of a specific user
		1491
		1492	$path =~ s/$PATH_SEP/\//go;
		1493
		1494	# treat it as relative path if it starts with
		1495	# something that looks reasonable
		1496	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1497	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1498
		1499	$base =~ s{[^/]+/?$}{};
		1500	$path = "$base/$path";
		1501	}
		1502
		1503	for ($path) {
		1504	redo if s{//}{/};
		1505	redo if s{/\.?/}{/};
		1506	redo if s{/[^/]+/\.\./}{/};
		1507	}
		1508
		1509	$path
		1510	}
		1511
		1512	sub new_from_path {
		1513	my (undef, $path, $base) = @_;
		1514
		1515	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1516
		1517	$path = normalise $path, $base;
		1518
		1519	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1520	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1521	my $self = bless cf::map::new, $pkg;
		1522	$self->{path} = $path; $self->path ($path);
		1523	$self->init; # pass $1 etc.
		1524	return $self;
		1525	}
		1526	}
		1527
		1528	Carp::carp "unable to resolve path '$path' (base '$base').";
		1529	()
		1530	}
		1531
		1532	sub init {
		1533	my ($self) = @_;
		1534
		1535	$self
		1536	}
		1537
		1538	sub as_string {
		1539	my ($self) = @_;
		1540
		1541	"$self->{path}"
		1542	}
		1543
		1544	# the displayed name, this is a one way mapping
		1545	sub visible_name {
		1546	&as_string
		1547	}
		1548
		1549	# the original (read-only) location
		1550	sub load_path {
		1551	my ($self) = @_;
		1552
		1553	"$MAPDIR/$self->{path}.map"
		1554	}
		1555
		1556	# the temporary/swap location
		1557	sub save_path {
		1558	my ($self) = @_;
		1559
		1560	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1561	"$TMPDIR/$path.map"
		1562	}
		1563
		1564	# the unique path, undef == no special unique path
		1565	sub uniq_path {
		1566	my ($self) = @_;
		1567
		1568	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1569	"$UNIQUEDIR/$path"
1254	}	1570	}
1255		1571
1256	# and all this just because we cannot iterate over	1572	# and all this just because we cannot iterate over
1257	# all maps in C++...	1573	# all maps in C++...
1258	sub change_all_map_light {	1574	sub change_all_map_light {
…		…
1260		1576
1261	$_->change_map_light ($change)	1577	$_->change_map_light ($change)
1262	for grep $_->outdoor, values %cf::MAP;	1578	for grep $_->outdoor, values %cf::MAP;
1263	}	1579	}
1264		1580
		1581	sub decay_objects {
		1582	my ($self) = @_;
		1583
		1584	return if $self->{deny_reset};
		1585
		1586	$self->do_decay_objects;
		1587	}
		1588
		1589	sub unlink_save {
		1590	my ($self) = @_;
		1591
		1592	utf8::encode (my $save = $self->save_path);
		1593	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1594	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1595	}
		1596
1265	sub try_load_header($) {	1597	sub load_header_from($) {
1266	my ($path) = @_;	1598	my ($self, $path) = @_;
1267		1599
1268	utf8::encode $path;	1600	utf8::encode $path;
1269	aio_open $path, O_RDONLY, 0	1601	#aio_open $path, O_RDONLY, 0
		1602	# or return;
		1603
		1604	$self->_load_header ($path)
1270	or return;	1605	or return;
1271		1606
1272	my $map = cf::map::new	1607	$self->{load_path} = $path;
		1608
		1609	1
		1610	}
		1611
		1612	sub load_header_orig {
		1613	my ($self) = @_;
		1614
		1615	$self->load_header_from ($self->load_path)
		1616	}
		1617
		1618	sub load_header_temp {
		1619	my ($self) = @_;
		1620
		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	$self->instantiate;
		1641	}
		1642
		1643	sub load_header {
		1644	my ($self) = @_;
		1645
		1646	if ($self->load_header_temp) {
		1647	$self->prepare_temp;
		1648	} else {
		1649	$self->load_header_orig
1273	or return;	1650	or return;
		1651	$self->prepare_orig;
		1652	}
1274		1653
1275	# for better error messages only, will be overwritten	1654	$self->{deny_reset} = 1
1276	$map->path ($path);	1655	if $self->no_reset;
1277		1656
1278	$map->load_header ($path)	1657	$self->default_region (cf::region::find_by_path $self->{path})
1279	or return;	1658	unless $self->default_region;
1280		1659
1281	$map->{load_path} = $path;	1660	1
1282
1283	$map
1284	}	1661	}
1285		1662
1286	sub find;	1663	sub find;
1287	sub find {	1664	sub find {
1288	my ($path, $origin) = @_;	1665	my ($path, $origin) = @_;
1289		1666
1290	#warn "find<$path,$origin>\n";#d#
1291
1292	$path = new cf::path $path, $origin && $origin->path;	1667	$path = normalise $path, $origin && $origin->path;
1293	my $key = $path->as_string;
1294		1668
1295	cf::lock_wait "map_find:$key";	1669	cf::lock_wait "map_find:$path";
1296		1670
1297	$cf::MAP{$key} || do {	1671	$cf::MAP{$path} || do {
1298	my $guard = cf::lock_acquire "map_find:$key";	1672	my $guard = cf::lock_acquire "map_find:$path";
1299		1673	my $map = new_from_path cf::map $path
1300	# do it the slow way
1301	my $map = try_load_header $path->save_path;
1302
1303	Coro::cede;
1304
1305	if ($map) {
1306	$map->last_access ((delete $map->{last_access})
1307	|| $cf::RUNTIME); #d#
1308	# safety
1309	$map->{instantiate_time} = $cf::RUNTIME
1310	if $map->{instantiate_time} > $cf::RUNTIME;
1311	} else {
1312	if (my $rmp = $path->random_map_params) {
1313	$map = generate_random_map $key, $rmp;
1314	} else {
1315	$map = try_load_header $path->load_path;
1316	}
1317
1318	$map or return;	1674	or return;
1319		1675
1320	$map->{load_original} = 1;
1321	$map->{instantiate_time} = $cf::RUNTIME;
1322	$map->last_access ($cf::RUNTIME);
1323	$map->instantiate;
1324
1325	# per-player maps become, after loading, normal maps
1326	$map->per_player (0) if $path->{user_rel};
1327	}
1328
1329	$map->path ($key);
1330	$map->{path} = $path;
1331	$map->{last_save} = $cf::RUNTIME;	1676	$map->{last_save} = $cf::RUNTIME;
1332		1677
1333	Coro::cede;	1678	$map->load_header
		1679	or return;
1334		1680
1335	if ($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;
1336	$map->reset;	1684	$map->reset;
1337	undef $guard;	1685	undef $guard;
1338	$map = find $path	1686	return find $path;
1339	or return;
1340	}	1687	}
1341		1688
1342	$cf::MAP{$key} = $map	1689	$cf::MAP{$path} = $map
1343	}	1690	}
1344	}	1691	}
		1692
		1693	sub pre_load { }
		1694	sub post_load { }
1345		1695
1346	sub load {	1696	sub load {
1347	my ($self) = @_;	1697	my ($self) = @_;
1348		1698
		1699	local $self->{deny_reset} = 1; # loading can take a long time
		1700
1349	my $path = $self->{path};	1701	my $path = $self->{path};
		1702
		1703	{
1350	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1704	my $guard = cf::lock_acquire "map_load:$path";
1351		1705
1352	return if $self->in_memory != cf::MAP_SWAPPED;	1706	return if $self->in_memory != cf::MAP_SWAPPED;
1353		1707
1354	$self->in_memory (cf::MAP_LOADING);	1708	$self->in_memory (cf::MAP_LOADING);
1355		1709
1356	$self->alloc;	1710	$self->alloc;
		1711
		1712	$self->pre_load;
		1713	Coro::cede;
		1714
1357	$self->load_objects ($self->{load_path}, 1)	1715	$self->_load_objects ($self->{load_path}, 1)
1358	or return;	1716	or return;
1359		1717
1360	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1718	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1361	if delete $self->{load_original};	1719	if delete $self->{load_original};
1362		1720
1363	if (my $uniq = $path->uniq_path) {	1721	if (my $uniq = $self->uniq_path) {
1364	utf8::encode $uniq;	1722	utf8::encode $uniq;
1365	if (aio_open $uniq, O_RDONLY, 0) {	1723	if (aio_open $uniq, O_RDONLY, 0) {
1366	$self->clear_unique_items;	1724	$self->clear_unique_items;
1367	$self->load_objects ($uniq, 0);	1725	$self->_load_objects ($uniq, 0);
1368	}	1726	}
1369	}	1727	}
1370		1728
1371	Coro::cede;	1729	Coro::cede;
1372
1373	# now do the right thing for maps	1730	# now do the right thing for maps
1374	$self->link_multipart_objects;	1731	$self->link_multipart_objects;
1375
1376	if ($self->{path}->is_style_map) {
1377	$self->{deny_save} = 1;
1378	$self->{deny_reset} = 1;
1379	} else {
1380	$self->fix_auto_apply;
1381	$self->decay_objects;
1382	$self->update_buttons;
1383	$self->set_darkness_map;
1384	$self->difficulty ($self->estimate_difficulty)	1732	$self->difficulty ($self->estimate_difficulty)
1385	unless $self->difficulty;	1733	unless $self->difficulty;
		1734	Coro::cede;
		1735
		1736	unless ($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;
1386	$self->activate;	1743	$self->activate;
1387	}	1744	}
1388		1745
1389	Coro::cede;
1390
1391	$self->in_memory (cf::MAP_IN_MEMORY);	1746	$self->in_memory (cf::MAP_IN_MEMORY);
		1747	}
		1748
		1749	$self->post_load;
		1750	}
		1751
		1752	sub customise_for {
		1753	my ($self, $ob) = @_;
		1754
		1755	return find "~" . $ob->name . "/" . $self->{path}
		1756	if $self->per_player;
		1757
		1758	# return find "?party/" . $ob->name . "/" . $self->{path}
		1759	# if $self->per_party;
		1760
		1761	$self
1392	}	1762	}
1393		1763
1394	# find and load all maps in the 3x3 area around a map	1764	# find and load all maps in the 3x3 area around a map
1395	sub load_diag {	1765	sub load_diag {
1396	my ($map) = @_;	1766	my ($map) = @_;
…		…
1426		1796
1427	cf::sync_job { $map->load };	1797	cf::sync_job { $map->load };
1428	}	1798	}
1429		1799
1430	our %MAP_PREFETCH;	1800	our %MAP_PREFETCH;
1431	our $MAP_PREFETCHER = Coro::async {	1801	our $MAP_PREFETCHER = undef;
1432	while () {
1433	while (%MAP_PREFETCH) {
1434	my $key = each %MAP_PREFETCH
1435	or next;
1436	my $path = delete $MAP_PREFETCH{$key};
1437
1438	my $map = find $path
1439	or next;
1440	$map->load;
1441	}
1442	Coro::schedule;
1443	}
1444	};
1445		1802
1446	sub find_async {	1803	sub find_async {
1447	my ($path, $origin) = @_;	1804	my ($path, $origin) = @_;
1448		1805
1449	$path = new cf::path $path, $origin && $origin->path;	1806	$path = normalise $path, $origin && $origin->{path};
1450	my $key = $path->as_string;
1451		1807
1452	if (my $map = $cf::MAP{$key}) {	1808	if (my $map = $cf::MAP{$path}) {
1453	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1809	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1454	}	1810	}
1455		1811
1456	$MAP_PREFETCH{$key} = $path;	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	};
1457	$MAP_PREFETCHER->ready;	1825	$MAP_PREFETCHER->prio (6);
1458		1826
1459	()	1827	()
1460	}	1828	}
1461		1829
1462	sub save {	1830	sub save {
…		…
1466		1834
1467	$self->{last_save} = $cf::RUNTIME;	1835	$self->{last_save} = $cf::RUNTIME;
1468		1836
1469	return unless $self->dirty;	1837	return unless $self->dirty;
1470		1838
1471	my $save = $self->{path}->save_path; utf8::encode $save;	1839	my $save = $self->save_path; utf8::encode $save;
1472	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1840	my $uniq = $self->uniq_path; utf8::encode $uniq;
1473		1841
1474	$self->{load_path} = $save;	1842	$self->{load_path} = $save;
1475		1843
1476	return if $self->{deny_save};	1844	return if $self->{deny_save};
1477		1845
…		…
1480	cf::async {	1848	cf::async {
1481	$_->contr->save for $self->players;	1849	$_->contr->save for $self->players;
1482	};	1850	};
1483		1851
1484	if ($uniq) {	1852	if ($uniq) {
1485	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1853	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1486	$self->save_objects ($uniq, cf::IO_UNIQUES);	1854	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1487	} else {	1855	} else {
1488	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1856	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1489	}	1857	}
1490	}	1858	}
1491		1859
1492	sub swap_out {	1860	sub swap_out {
1493	my ($self) = @_;	1861	my ($self) = @_;
…		…
1507		1875
1508	sub reset_at {	1876	sub reset_at {
1509	my ($self) = @_;	1877	my ($self) = @_;
1510		1878
1511	# TODO: safety, remove and allow resettable per-player maps	1879	# TODO: safety, remove and allow resettable per-player maps
1512	return 1e99 if $self->{path}{user_rel};
1513	return 1e99 if $self->{deny_reset};	1880	return 1e99 if $self->{deny_reset};
1514		1881
1515	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1882	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1516	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1883	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1517		1884
…		…
1522	my ($self) = @_;	1889	my ($self) = @_;
1523		1890
1524	$self->reset_at <= $cf::RUNTIME	1891	$self->reset_at <= $cf::RUNTIME
1525	}	1892	}
1526		1893
1527	sub unlink_save {
1528	my ($self) = @_;
1529
1530	utf8::encode (my $save = $self->{path}->save_path);
1531	aioreq_pri 3; IO::AIO::aio_unlink $save;
1532	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1533	}
1534
1535	sub rename {
1536	my ($self, $new_path) = @_;
1537
1538	$self->unlink_save;
1539
1540	delete $cf::MAP{$self->path};
1541	$self->{path} = new cf::path $new_path;
1542	$self->path ($self->{path}->as_string);
1543	$cf::MAP{$self->path} = $self;
1544
1545	$self->save;
1546	}
1547
1548	sub reset {	1894	sub reset {
1549	my ($self) = @_;	1895	my ($self) = @_;
1550		1896
1551	my $lock = cf::lock_acquire "map_data:" . $self->path;	1897	my $lock = cf::lock_acquire "map_data:$self->{path}";
1552		1898
1553	return if $self->players;	1899	return if $self->players;
1554	return if $self->{path}{user_rel};#d#
1555		1900
1556	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	}
1557		1912
1558	delete $cf::MAP{$self->path};	1913	delete $cf::MAP{$self->path};
		1914
		1915	$self->clear;
1559		1916
1560	$_->clear_links_to ($self) for values %cf::MAP;	1917	$_->clear_links_to ($self) for values %cf::MAP;
1561		1918
1562	$self->unlink_save;	1919	$self->unlink_save;
1563	$self->destroy;	1920	$self->destroy;
…		…
1566	my $nuke_counter = "aaaa";	1923	my $nuke_counter = "aaaa";
1567		1924
1568	sub nuke {	1925	sub nuke {
1569	my ($self) = @_;	1926	my ($self) = @_;
1570		1927
		1928	delete $cf::MAP{$self->path};
		1929
		1930	$self->unlink_save;
		1931
		1932	bless $self, "cf::map";
		1933	delete $self->{deny_reset};
1571	$self->{deny_save} = 1;	1934	$self->{deny_save} = 1;
1572	$self->reset_timeout (1);	1935	$self->reset_timeout (1);
1573	$self->rename ("{nuke}/" . ($nuke_counter++));	1936	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1937
		1938	$cf::MAP{$self->path} = $self;
		1939
1574	$self->reset; # polite request, might not happen	1940	$self->reset; # polite request, might not happen
1575	}	1941	}
1576		1942
1577	sub customise_for {	1943	=item $maps = cf::map::tmp_maps
1578	my ($map, $ob) = @_;
1579		1944
1580	if ($map->per_player) {	1945	Returns an arrayref with all map paths of currently instantiated and saved
1581	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1946	maps. May block.
		1947
		1948	=cut
		1949
		1950	sub tmp_maps() {
1582	}	1951	[
		1952	map {
		1953	utf8::decode $_;
		1954	/\.map$/
		1955	? normalise $_
		1956	: ()
		1957	} @{ aio_readdir $TMPDIR or [] }
		1958	]
		1959	}
1583		1960
1584	$map	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	]
1585	}	1977	}
1586		1978
1587	=item cf::map::unique_maps	1979	=item cf::map::unique_maps
1588		1980
1589	Returns an arrayref of cf::path's of all shared maps that have	1981	Returns an arrayref of paths of all shared maps that have
1590	instantiated unique items. May block.	1982	instantiated unique items. May block.
1591		1983
1592	=cut	1984	=cut
1593		1985
1594	sub unique_maps() {	1986	sub unique_maps() {
1595	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1987	[
1596	or return;	1988	map {
1597
1598	my @paths;
1599
1600	for (@$files) {
1601	utf8::decode $_;	1989	utf8::decode $_;
1602	next if /\.pst$/;	1990	/\.map$/
1603	next unless /^$PATH_SEP/o;	1991	? normalise $_
1604		1992	: ()
1605	push @paths, new cf::path $_;	1993	} @{ aio_readdir $UNIQUEDIR or [] }
1606	}	1994	]
1607
1608	\@paths
1609	}	1995	}
1610		1996
1611	package cf;	1997	package cf;
1612		1998
1613	=back	1999	=back
…		…
1659		2045
1660	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2046	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1661		2047
1662	if ($self->{record_replies}) {	2048	if ($self->{record_replies}) {
1663	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2049	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2050
1664	} 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 {
1665	$msg = $npc->name . " says: $msg" if $npc;	2061	$msg = $npc->name . " says: $msg" if $npc;
1666	$self->message ($msg, $flags);	2062	$self->message ($msg, $flags);
		2063	}
1667	}	2064	}
1668	}	2065	}
1669		2066
1670	=item $player_object->may ("access")	2067	=item $player_object->may ("access")
1671		2068
…		…
1685		2082
1686	=item $player_object->enter_link	2083	=item $player_object->enter_link
1687		2084
1688	Freezes the player and moves him/her to a special map (C<{link}>).	2085	Freezes the player and moves him/her to a special map (C<{link}>).
1689		2086
1690	The player should be reaosnably safe there for short amounts of time. You	2087	The player should be reasonably safe there for short amounts of time. You
1691	I<MUST> call C<leave_link> as soon as possible, though.	2088	I<MUST> call C<leave_link> as soon as possible, though.
1692		2089
		2090	Will never block.
		2091
1693	=item $player_object->leave_link ($map, $x, $y)	2092	=item $player_object->leave_link ($map, $x, $y)
1694		2093
1695	Moves the player out of the specila link map onto the given map. If the	2094	Moves the player out of the special C<{link}> map onto the specified
1696	map is not valid (or omitted), the player will be moved back to the	2095	map. If the map is not valid (or omitted), the player will be moved back
1697	location he/she was before the call to C<enter_link>, or, if that fails,	2096	to the location he/she was before the call to C<enter_link>, or, if that
1698	to the emergency map position.	2097	fails, to the emergency map position.
1699		2098
1700	Might block.	2099	Might block.
1701		2100
1702	=cut	2101	=cut
		2102
		2103	sub link_map {
		2104	unless ($LINK_MAP) {
		2105	$LINK_MAP = cf::map::find "{link}"
		2106	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2107	$LINK_MAP->load;
		2108	}
		2109
		2110	$LINK_MAP
		2111	}
1703		2112
1704	sub cf::object::player::enter_link {	2113	sub cf::object::player::enter_link {
1705	my ($self) = @_;	2114	my ($self) = @_;
1706		2115
1707	$self->deactivate_recursive;	2116	$self->deactivate_recursive;
1708		2117
1709	return if $self->map == $LINK_MAP;	2118	return if UNIVERSAL::isa $self->map, "ext::map_link";
1710		2119
1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2120	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1712	if $self->map;	2121	if $self->map && $self->map->{path} ne "{link}";
1713		2122
1714	$self->enter_map ($LINK_MAP, 20, 20);	2123	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1715	}	2124	}
1716		2125
1717	sub cf::object::player::leave_link {	2126	sub cf::object::player::leave_link {
1718	my ($self, $map, $x, $y) = @_;	2127	my ($self, $map, $x, $y) = @_;
		2128
		2129	return unless $self->contr->active;
1719		2130
1720	my $link_pos = delete $self->{_link_pos};	2131	my $link_pos = delete $self->{_link_pos};
1721		2132
1722	unless ($map) {	2133	unless ($map) {
1723	# restore original map position	2134	# restore original map position
…		…
1741	$map->load;	2152	$map->load;
1742	$map->load_diag;	2153	$map->load_diag;
1743		2154
1744	return unless $self->contr->active;	2155	return unless $self->contr->active;
1745	$self->activate_recursive;	2156	$self->activate_recursive;
		2157
		2158	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1746	$self->enter_map ($map, $x, $y);	2159	$self->enter_map ($map, $x, $y);
1747	}	2160	}
1748		2161
1749	cf::player->attach (
1750	on_logout => sub {
1751	my ($pl) = @_;
1752
1753	# abort map switching before logout
1754	if ($pl->ob->{_link_pos}) {
1755	cf::sync_job {
1756	$pl->ob->leave_link
1757	};
1758	}
1759	},
1760	on_login => sub {
1761	my ($pl) = @_;
1762
1763	# try to abort aborted map switching on player login :)
1764	# should happen only on crashes
1765	if ($pl->ob->{_link_pos}) {
1766	$pl->ob->enter_link;
1767	(async {
1768	# we need this sleep as the login has a concurrent enter_exit running
1769	# and this sleep increases chances of the player not ending up in scorn
1770	$pl->ob->reply (undef,
1771	"There was an internal problem at your last logout, "
1772	. "the server will try to bring you to your intended destination in a second.",
1773	cf::NDI_RED);
1774	Coro::Timer::sleep 1;
1775	$pl->ob->leave_link;
1776	})->prio (2);
1777	}
1778	},
1779	);
1780
1781	=item $player_object->goto ($path, $x, $y)	2162	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1782		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
1783	=cut	2169	=cut
		2170
		2171	our $GOTOGEN;
1784		2172
1785	sub cf::object::player::goto {	2173	sub cf::object::player::goto {
1786	my ($self, $path, $x, $y) = @_;	2174	my ($self, $path, $x, $y, $check) = @_;
1787		2175
1788	$path = new cf::path $path;	2176	# do generation counting so two concurrent goto's will be executed in-order
		2177	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1789		2178
1790	$self->enter_link;	2179	$self->enter_link;
1791		2180
1792	(async {	2181	(async {
		2182	my $map = eval {
1793	my $map = cf::map::find $path->as_string;	2183	my $map = cf::map::find $path;
		2184
		2185	if ($map) {
1794	$map = $map->customise_for ($self) if $map;	2186	$map = $map->customise_for ($self);
1795		2187	$map = $check->($map) if $check && $map;
1796	# warn "entering ", $map->path, " at ($x, $y)\n"	2188	} else {
1797	# if $map;
1798
1799	$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	}
1800		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};
1801	$self->leave_link ($map, $x, $y);	2202	$self->leave_link ($map, $x, $y);
		2203	}
1802	})->prio (1);	2204	})->prio (1);
1803	}	2205	}
1804		2206
1805	=item $player_object->enter_exit ($exit_object)	2207	=item $player_object->enter_exit ($exit_object)
1806		2208
…		…
1808		2210
1809	sub parse_random_map_params {	2211	sub parse_random_map_params {
1810	my ($spec) = @_;	2212	my ($spec) = @_;
1811		2213
1812	my $rmp = { # defaults	2214	my $rmp = { # defaults
1813	xsize => 10,	2215	xsize => (cf::rndm 15, 40),
1814	ysize => 10,	2216	ysize => (cf::rndm 15, 40),
		2217	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2218	#layout => string,
1815	};	2219	};
1816		2220
1817	for (split /\n/, $spec) {	2221	for (split /\n/, $spec) {
1818	my ($k, $v) = split /\s+/, $_, 2;	2222	my ($k, $v) = split /\s+/, $_, 2;
1819		2223
…		…
1823	$rmp	2227	$rmp
1824	}	2228	}
1825		2229
1826	sub prepare_random_map {	2230	sub prepare_random_map {
1827	my ($exit) = @_;	2231	my ($exit) = @_;
		2232
		2233	my $guard = cf::lock_acquire "exit_prepare:$exit";
1828		2234
1829	# all this does is basically replace the /! path by	2235	# all this does is basically replace the /! path by
1830	# a new random map path (?random/...) with a seed	2236	# a new random map path (?random/...) with a seed
1831	# that depends on the exit object	2237	# that depends on the exit object
1832		2238
1833	my $rmp = parse_random_map_params $exit->msg;	2239	my $rmp = parse_random_map_params $exit->msg;
1834		2240
1835	if ($exit->map) {	2241	if ($exit->map) {
1836	$rmp->{region} = $exit->map->region_name;	2242	$rmp->{region} = $exit->region->name;
1837	$rmp->{origin_map} = $exit->map->path;	2243	$rmp->{origin_map} = $exit->map->path;
1838	$rmp->{origin_x} = $exit->x;	2244	$rmp->{origin_x} = $exit->x;
1839	$rmp->{origin_y} = $exit->y;	2245	$rmp->{origin_y} = $exit->y;
1840	}	2246	}
1841		2247
1842	$rmp->{random_seed} ||= $exit->random_seed;	2248	$rmp->{random_seed} ||= $exit->random_seed;
1843		2249
1844	my $data = cf::to_json $rmp;	2250	my $data = cf::to_json $rmp;
1845	my $md5 = Digest::MD5::md5_hex $data;	2251	my $md5 = Digest::MD5::md5_hex $data;
		2252	my $meta = "$RANDOMDIR/$md5.meta";
1846		2253
1847	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) {
1848	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;
1849		2258
1850	$exit->slaying ("?random/$md5");	2259	$exit->slaying ("?random/$md5");
1851	$exit->msg (undef);	2260	$exit->msg (undef);
1852	}	2261	}
1853	}	2262	}
1854		2263
1855	sub cf::object::player::enter_exit {	2264	sub cf::object::player::enter_exit {
1856	my ($self, $exit) = @_;	2265	my ($self, $exit) = @_;
1857		2266
1858	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;
1859		2279
1860	$self->enter_link;	2280	$self->enter_link;
1861		2281
1862	(async {	2282	(async {
1863	$self->deactivate_recursive; # just to be sure	2283	$self->deactivate_recursive; # just to be sure
1864	unless (eval {	2284	unless (eval {
1865	prepare_random_map $exit	2285	$self->goto ($slaying, $hp, $sp);
1866	if $exit->slaying eq "/!";
1867
1868	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1869	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1870		2286
1871	1;	2287	1;
1872	}) {	2288	}) {
1873	$self->message ("Something went wrong deep within the crossfire server. "	2289	$self->message ("Something went wrong deep within the crossfire server. "
1874	. "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. "
1875	. "Please report this to the dungeon master!",	2291	. "Please report this to the dungeon master!",
1876	cf::NDI_UNIQUE | cf::NDI_RED);	2292	cf::NDI_UNIQUE | cf::NDI_RED);
1877		2293
1878	warn "ERROR in enter_exit: $@";	2294	warn "ERROR in enter_exit: $@";
1879	$self->leave_link;	2295	$self->leave_link;
1880	}	2296	}
1881	})->prio (1);	2297	})->prio (1);
…		…
1894		2310
1895	sub cf::client::send_drawinfo {	2311	sub cf::client::send_drawinfo {
1896	my ($self, $text, $flags) = @_;	2312	my ($self, $text, $flags) = @_;
1897		2313
1898	utf8::encode $text;	2314	utf8::encode $text;
1899	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2315	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1900	}	2316	}
1901		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	}
1902		2330
1903	=item $success = $client->query ($flags, "text", \&cb)	2331	=item $success = $client->query ($flags, "text", \&cb)
1904		2332
1905	Queues a query to the client, calling the given callback with	2333	Queues a query to the client, calling the given callback with
1906	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>,
…		…
1935	# get handled first	2363	# get handled first
1936	my $queue = delete $ns->{query_queue}	2364	my $queue = delete $ns->{query_queue}
1937	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
1938		2366
1939	(shift @$queue)->[1]->($msg);	2367	(shift @$queue)->[1]->($msg);
		2368	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1940		2369
1941	push @{ $ns->{query_queue} }, @$queue;	2370	push @{ $ns->{query_queue} }, @$queue;
1942		2371
1943	if (@{ $ns->{query_queue} } == @$queue) {	2372	if (@{ $ns->{query_queue} } == @$queue) {
1944	if (@$queue) {	2373	if (@$queue) {
…		…
2002		2431
2003	# here we export the classes and methods available to script code	2432	# here we export the classes and methods available to script code
2004		2433
2005	=pod	2434	=pod
2006		2435
2007	The following fucntions and emthods are available within a safe environment:	2436	The following functions and methods are available within a safe environment:
2008		2437
2009	cf::object contr pay_amount pay_player map	2438	cf::object contr pay_amount pay_player map
2010	cf::object::player player	2439	cf::object::player player
2011	cf::player peaceful	2440	cf::player peaceful
2012	cf::map trigger	2441	cf::map trigger
…		…
2093	=back	2522	=back
2094		2523
2095	=cut	2524	=cut
2096		2525
2097	#############################################################################	2526	#############################################################################
		2527	# the server's init and main functions
2098		2528
2099	=head2 EXTENSION DATABASE SUPPORT	2529	sub load_facedata($) {
		2530	my ($path) = @_;
2100		2531
2101	Crossfire maintains a very simple database for extension use. It can	2532	warn "loading facedata from $path\n";
2102	currently store anything that can be serialised using Storable, which
2103	excludes objects.
2104		2533
2105	The parameter C<$family> should best start with the name of the extension	2534	my $facedata;
2106	using it, it should be unique.	2535	0 < aio_load $path, $facedata
		2536	or die "$path: $!";
2107		2537
2108	=over 4	2538	$facedata = Coro::Storable::thaw $facedata;
2109		2539
2110	=item $hashref = cf::db_get $family	2540	$facedata->{version} == 2
		2541	or cf::cleanup "$path: version mismatch, cannot proceed.";
2111		2542
2112	Return a hashref for use by the extension C<$family>, which can be
2113	modified. After modifications, you have to call C<cf::db_dirty> or
2114	C<cf::db_sync>.
2115
2116	=item $value = cf::db_get $family => $key
2117
2118	Returns a single value from the database
2119
2120	=item cf::db_put $family => $hashref
2121
2122	Stores the given family hashref into the database. Updates are delayed, if
2123	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2124
2125	=item cf::db_put $family => $key => $value
2126
2127	Stores the given C<$value> in the family hash. Updates are delayed, if you
2128	want the data to be synced to disk immediately, use C<cf::db_sync>.
2129
2130	=item cf::db_dirty
2131
2132	Marks the database as dirty, to be updated at a later time.
2133
2134	=item cf::db_sync
2135
2136	Immediately write the database to disk I<if it is dirty>.
2137
2138	=cut
2139
2140	our $DB;
2141
2142	{
2143	my $path = cf::localdir . "/database.pst";
2144
2145	sub db_load() {
2146	$DB = stat $path ? Storable::retrieve $path : { };
2147	}	2543	{
		2544	my $faces = $facedata->{faceinfo};
2148		2545
2149	my $pid;	2546	while (my ($face, $info) = each %$faces) {
2150		2547	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2151	sub db_save() {	2548	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2152	waitpid $pid, 0 if $pid;	2549	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2153	if (0 == ($pid = fork)) {	2550	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2154	$DB->{_meta}{version} = 1;	2551	Coro::cede;
2155	Storable::nstore $DB, "$path~";
2156	rename "$path~", $path;
2157	cf::_exit 0 if defined $pid;
2158	}
2159	}
2160
2161	my $dirty;
2162
2163	sub db_sync() {
2164	db_save if $dirty;
2165	undef $dirty;
2166	}
2167
2168	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2169	db_sync;
2170	});
2171
2172	sub db_dirty() {
2173	$dirty = 1;
2174	$idle->start;
2175	}
2176
2177	sub db_get($;$) {
2178	@_ >= 2
2179	? $DB->{$_[0]}{$_[1]}
2180	: ($DB->{$_[0]} ||= { })
2181	}
2182
2183	sub db_put($$;$) {
2184	if (@_ >= 3) {
2185	$DB->{$_[0]}{$_[1]} = $_[2];
2186	} else {
2187	$DB->{$_[0]} = $_[1];
2188	}
2189	db_dirty;
2190	}
2191
2192	cf::global->attach (
2193	prio => 10000,
2194	on_cleanup => sub {
2195	db_sync;
2196	},	2552	}
2197	);
2198	}
2199		2553
2200	#############################################################################	2554	while (my ($face, $info) = each %$faces) {
2201	# 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	}
2202		2616
2203	sub cfg_load {	2617	sub cfg_load {
2204	open my $fh, "<:utf8", cf::confdir . "/config"	2618	open my $fh, "<:utf8", "$CONFDIR/config"
2205	or return;	2619	or return;
2206		2620
2207	local $/;	2621	local $/;
2208	*CFG = YAML::Syck::Load <$fh>;	2622	*CFG = YAML::Syck::Load <$fh>;
2209		2623
…		…
2223		2637
2224	sub main {	2638	sub main {
2225	# we must not ever block the main coroutine	2639	# we must not ever block the main coroutine
2226	local $Coro::idle = sub {	2640	local $Coro::idle = sub {
2227	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 {
2228	async { Event::one_event };	2643	Event::one_event;
		2644	})->prio (Coro::PRIO_MAX);
2229	};	2645	};
2230		2646
2231	cfg_load;	2647	cfg_load;
2232	db_load;	2648	db_init;
2233	load_extensions;	2649	load_extensions;
		2650
		2651	$TICK_WATCHER->start;
2234	Event::loop;	2652	Event::loop;
2235	}	2653	}
2236		2654
2237	#############################################################################	2655	#############################################################################
2238	# initialisation and cleanup	2656	# initialisation and cleanup
2239		2657
2240	# install some emergency cleanup handlers	2658	# install some emergency cleanup handlers
2241	BEGIN {	2659	BEGIN {
2242	for my $signal (qw(INT HUP TERM)) {	2660	for my $signal (qw(INT HUP TERM)) {
2243	Event->signal (	2661	Event->signal (
		2662	reentrant => 0,
2244	data => WF_AUTOCANCEL,	2663	data => WF_AUTOCANCEL,
2245	signal => $signal,	2664	signal => $signal,
		2665	prio => 0,
2246	cb => sub {	2666	cb => sub {
2247	cf::cleanup "SIG$signal";	2667	cf::cleanup "SIG$signal";
2248	},	2668	},
2249	);	2669	);
2250	}	2670	}
2251	}	2671	}
2252		2672
		2673	sub write_runtime {
		2674	my $runtime = "$LOCALDIR/runtime";
		2675
		2676	# first touch the runtime file to show we are still running:
		2677	# the fsync below can take a very very long time.
		2678
		2679	IO::AIO::aio_utime $runtime, undef, undef;
		2680
		2681	my $guard = cf::lock_acquire "write_runtime";
		2682
		2683	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2684	or return;
		2685
		2686	my $value = $cf::RUNTIME + 90 + 10;
		2687	# 10 is the runtime save interval, for a monotonic clock
		2688	# 60 allows for the watchdog to kill the server.
		2689
		2690	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2691	and return;
		2692
		2693	# always fsync - this file is important
		2694	aio_fsync $fh
		2695	and return;
		2696
		2697	# touch it again to show we are up-to-date
		2698	aio_utime $fh, undef, undef;
		2699
		2700	close $fh
		2701	or return;
		2702
		2703	aio_rename "$runtime~", $runtime
		2704	and return;
		2705
		2706	warn "runtime file written.\n";
		2707
		2708	1
		2709	}
		2710
2253	sub emergency_save() {	2711	sub emergency_save() {
2254	my $freeze_guard = cf::freeze_mainloop;	2712	my $freeze_guard = cf::freeze_mainloop;
2255		2713
2256	warn "enter emergency perl save\n";	2714	warn "enter emergency perl save\n";
2257		2715
2258	cf::sync_job {	2716	cf::sync_job {
2259	# use a peculiar iteration method to avoid tripping on perl	2717	# use a peculiar iteration method to avoid tripping on perl
2260	# refcount bugs in for. also avoids problems with players	2718	# refcount bugs in for. also avoids problems with players
2261	# and maps saved/Destroyed asynchronously.	2719	# and maps saved/destroyed asynchronously.
2262	warn "begin emergency player save\n";	2720	warn "begin emergency player save\n";
2263	for my $login (keys %cf::PLAYER) {	2721	for my $login (keys %cf::PLAYER) {
2264	my $pl = $cf::PLAYER{$login} or next;	2722	my $pl = $cf::PLAYER{$login} or next;
2265	$pl->valid or next;	2723	$pl->valid or next;
2266	$pl->save;	2724	$pl->save;
…		…
2272	my $map = $cf::MAP{$path} or next;	2730	my $map = $cf::MAP{$path} or next;
2273	$map->valid or next;	2731	$map->valid or next;
2274	$map->save;	2732	$map->save;
2275	}	2733	}
2276	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 $DB_ENV;
		2738	warn "end emergency database checkpoint\n";
2277	};	2739	};
2278		2740
2279	warn "leave emergency perl save\n";	2741	warn "leave emergency perl save\n";
2280	}	2742	}
2281		2743
		2744	sub post_cleanup {
		2745	my ($make_core) = @_;
		2746
		2747	warn Carp::longmess "post_cleanup backtrace"
		2748	if $make_core;
		2749	}
		2750
2282	sub reload() {	2751	sub do_reload_perl() {
2283	# can/must only be called in main	2752	# can/must only be called in main
2284	if ($Coro::current != $Coro::main) {	2753	if ($Coro::current != $Coro::main) {
2285	warn "can only reload from main coroutine\n";	2754	warn "can only reload from main coroutine";
2286	return;	2755	return;
2287	}	2756	}
2288		2757
2289	warn "reloading...";	2758	warn "reloading...";
2290		2759
2291	warn "freezing server";	2760	warn "entering sync_job";
2292	my $guard = freeze_mainloop;	2761
		2762	cf::sync_job {
		2763	cf::write_runtime; # external watchdog should not bark
2293	cf::emergency_save;	2764	cf::emergency_save;
		2765	cf::write_runtime; # external watchdog should not bark
2294		2766
2295	warn "sync database to disk";	2767	warn "syncing database to disk";
2296	cf::db_sync;	2768	BDB::db_env_txn_checkpoint $DB_ENV;
2297	IO::AIO::flush;
2298		2769
2299	eval {
2300	# 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
2301		2771
2302	warn "cancel all watchers";	2772	warn "cancelling all WF_AUTOCANCEL watchers";
2303	for (Event::all_watchers) {	2773	for (Event::all_watchers) {
2304	$_->cancel if $_->data & WF_AUTOCANCEL;	2774	$_->cancel if $_->data & WF_AUTOCANCEL;
2305	}	2775	}
2306		2776
		2777	warn "flushing outstanding aio requests";
		2778	for (;;) {
		2779	BDB::flush;
		2780	IO::AIO::flush;
		2781	Coro::cede;
		2782	last unless IO::AIO::nreqs || BDB::nreqs;
		2783	warn "iterate...";
		2784	}
		2785
		2786	++$RELOAD;
		2787
2307	warn "cancel all extension coros";	2788	warn "cancelling all extension coros";
2308	$_->cancel for values %EXT_CORO;	2789	$_->cancel for values %EXT_CORO;
2309	%EXT_CORO = ();	2790	%EXT_CORO = ();
2310		2791
2311	warn "remove commands";	2792	warn "removing commands";
2312	%COMMAND = ();	2793	%COMMAND = ();
2313		2794
2314	warn "remove ext commands";	2795	warn "removing ext commands";
2315	%EXTCMD = ();	2796	%EXTCMD = ();
2316		2797
2317	warn "unload/nuke all extensions";	2798	warn "unloading/nuking all extensions";
2318	for my $pkg (@EXTS) {	2799	for my $pkg (@EXTS) {
2319	warn "... unloading $pkg";	2800	warn "... unloading $pkg";
2320		2801
2321	if (my $cb = $pkg->can ("unload")) {	2802	if (my $cb = $pkg->can ("unload")) {
2322	eval {	2803	eval {
…		…
2327		2808
2328	warn "... nuking $pkg";	2809	warn "... nuking $pkg";
2329	Symbol::delete_package $pkg;	2810	Symbol::delete_package $pkg;
2330	}	2811	}
2331		2812
2332	warn "unload all perl modules loaded from $LIBDIR";	2813	warn "unloading all perl modules loaded from $LIBDIR";
2333	while (my ($k, $v) = each %INC) {	2814	while (my ($k, $v) = each %INC) {
2334	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2815	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2335		2816
2336	warn "removing <$k>";	2817	warn "... unloading $k";
2337	delete $INC{$k};	2818	delete $INC{$k};
2338		2819
2339	$k =~ s/\.pm$//;	2820	$k =~ s/\.pm$//;
2340	$k =~ s/\//::/g;	2821	$k =~ s/\//::/g;
2341		2822
…		…
2344	}	2825	}
2345		2826
2346	Symbol::delete_package $k;	2827	Symbol::delete_package $k;
2347	}	2828	}
2348		2829
2349	warn "get rid of safe::, as good as possible";	2830	warn "getting rid of safe::, as good as possible";
2350	Symbol::delete_package "safe::$_"	2831	Symbol::delete_package "safe::$_"
2351	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);
2352		2833
2353	warn "unload cf.pm \"a bit\"";	2834	warn "unloading cf.pm \"a bit\"";
2354	delete $INC{"cf.pm"};	2835	delete $INC{"cf.pm"};
		2836	delete $INC{"cf/pod.pm"};
2355		2837
2356	# don't, removes xs symbols, too,	2838	# don't, removes xs symbols, too,
2357	# and global variables created in xs	2839	# and global variables created in xs
2358	#Symbol::delete_package __PACKAGE__;	2840	#Symbol::delete_package __PACKAGE__;
2359		2841
		2842	warn "unload completed, starting to reload now";
		2843
2360	warn "reloading cf.pm";	2844	warn "reloading cf.pm";
2361	require cf;	2845	require cf;
2362	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2846	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2363		2847
2364	warn "load config and database again";	2848	warn "loading config and database again";
2365	cf::cfg_load;	2849	cf::cfg_load;
2366	cf::db_load;
2367		2850
2368	warn "load extensions";	2851	warn "loading extensions";
2369	cf::load_extensions;	2852	cf::load_extensions;
2370		2853
2371	warn "reattach attachments to objects/players";	2854	warn "reattaching attachments to objects/players";
2372	_global_reattach;	2855	_global_reattach; # objects, sockets
2373	warn "reattach attachments to maps";	2856	warn "reattaching attachments to maps";
2374	reattach $_ for values %MAP;	2857	reattach $_ for values %MAP;
2375	};	2858	warn "reattaching attachments to players";
		2859	reattach $_ for values %PLAYER;
2376		2860
2377	if ($@) {	2861	warn "leaving sync_job";
		2862
		2863	1
		2864	} or do {
2378	warn $@;	2865	warn $@;
2379	warn "error while reloading, exiting.";	2866	warn "error while reloading, exiting.";
2380	exit 1;	2867	exit 1;
2381	}	2868	};
2382		2869
2383	warn "reloaded";	2870	warn "reloaded";
2384	};	2871	};
2385		2872
2386	#############################################################################	2873	our $RELOAD_WATCHER; # used only during reload
2387		2874
2388	unless ($LINK_MAP) {	2875	sub reload_perl() {
2389	$LINK_MAP = cf::map::new;	2876	# doing reload synchronously and two reloads happen back-to-back,
		2877	# coro crashes during coro_state_free->destroy here.
2390		2878
2391	$LINK_MAP->width (41);	2879	$RELOAD_WATCHER ||= Event->timer (
2392	$LINK_MAP->height (41);	2880	reentrant => 0,
2393	$LINK_MAP->alloc;
2394	$LINK_MAP->path ("{link}");
2395	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2396	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2397
2398	# dirty hack because... archetypes are not yet loaded
2399	Event->timer (
2400	after => 10,	2881	after => 0,
		2882	data => WF_AUTOCANCEL,
2401	cb => sub {	2883	cb => sub {
2402	$_[0]->w->cancel;	2884	do_reload_perl;
2403		2885	undef $RELOAD_WATCHER;
2404	# provide some exits "home"
2405	my $exit = cf::object::new "exit";
2406
2407	$exit->slaying ($EMERGENCY_POSITION->[0]);
2408	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2409	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2410
2411	$LINK_MAP->insert ($exit->clone, 19, 19);
2412	$LINK_MAP->insert ($exit->clone, 19, 20);
2413	$LINK_MAP->insert ($exit->clone, 19, 21);
2414	$LINK_MAP->insert ($exit->clone, 20, 19);
2415	$LINK_MAP->insert ($exit->clone, 20, 21);
2416	$LINK_MAP->insert ($exit->clone, 21, 19);
2417	$LINK_MAP->insert ($exit->clone, 21, 20);
2418	$LINK_MAP->insert ($exit->clone, 21, 21);
2419
2420	$exit->destroy;
2421	});	2886	},
2422		2887	);
2423	$LINK_MAP->{deny_save} = 1;
2424	$LINK_MAP->{deny_reset} = 1;
2425
2426	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2427	}	2888	}
2428		2889
2429	register_command "reload" => sub {	2890	register_command "reload" => sub {
2430	my ($who, $arg) = @_;	2891	my ($who, $arg) = @_;
2431		2892
2432	if ($who->flag (FLAG_WIZ)) {	2893	if ($who->flag (FLAG_WIZ)) {
2433	$who->message ("start of reload.");
2434	reload;
2435	$who->message ("end of reload.");	2894	$who->message ("reloading server.");
		2895	async { reload_perl };
2436	}	2896	}
2437	};	2897	};
2438		2898
2439	unshift @INC, $LIBDIR;	2899	unshift @INC, $LIBDIR;
2440		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;
2441	$TICK_WATCHER = Event->timer (	2926	$TICK_WATCHER = Event->timer (
2442	reentrant => 0,	2927	reentrant => 0,
		2928	parked => 1,
2443	prio => 0,	2929	prio => 0,
2444	at => $NEXT_TICK || $TICK,	2930	at => $NEXT_TICK || $TICK,
2445	data => WF_AUTOCANCEL,	2931	data => WF_AUTOCANCEL,
2446	cb => sub {	2932	cb => sub {
		2933	if ($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
		2939	$NOW = $tick_start = Event::time;
		2940
2447	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
2448	$RUNTIME += $TICK;	2966	$RUNTIME += $TICK;
2449	$NEXT_TICK += $TICK;	2967	$NEXT_TICK += $TICK;
2450		2968
2451	$WAIT_FOR_TICK->broadcast;	2969	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2452	$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;
2453		2988
2454	# 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
2455	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2990	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2456		2991
2457	$TICK_WATCHER->at ($NEXT_TICK);	2992	$TICK_WATCHER->at ($NEXT_TICK);
2458	$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
2459	},	3001	},
2460	);	3002	);
2461		3003
		3004	{
2462	IO::AIO::max_poll_time $TICK * 0.2;	3005	BDB::max_poll_time $TICK * 0.1;
2463		3006	$BDB_POLL_WATCHER = Event->io (
2464	Event->io (	3007	reentrant => 0,
2465	fd => IO::AIO::poll_fileno,	3008	fd => BDB::poll_fileno,
2466	poll => 'r',	3009	poll => 'r',
2467	prio => 5,	3010	prio => 0,
2468	data => WF_AUTOCANCEL,
2469	cb => \&IO::AIO::poll_cb,
2470	);
2471
2472	Event->timer (
2473	data => WF_AUTOCANCEL,	3011	data => WF_AUTOCANCEL,
2474	after => 0,	3012	cb => \&BDB::poll_cb,
2475	interval => 10,	3013	);
2476	cb => sub {	3014	BDB::min_parallel 8;
2477	(Coro::unblock_sub {	3015
2478	write_runtime	3016	BDB::set_sync_prepare {
2479	or warn "ERROR: unable to write runtime file: $!";	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 $@;
2480	})->();	3050	};
2481	},	3051	}
2482	);	3052	}
		3053
		3054	{
		3055	IO::AIO::min_parallel 8;
		3056
		3057	undef $Coro::AIO::WATCHER;
		3058	IO::AIO::max_poll_time $TICK * 0.1;
		3059	$AIO_POLL_WATCHER = Event->io (
		3060	reentrant => 0,
		3061	data => WF_AUTOCANCEL,
		3062	fd => IO::AIO::poll_fileno,
		3063	poll => 'r',
		3064	prio => 6,
		3065	cb => \&IO::AIO::poll_cb,
		3066	);
		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;
		3100	};
		3101	} else {
		3102	LOG llevInfo, "[ABT] $msg\n";
		3103	LOG llevInfo, "[ABT] [suppressed]\n";
		3104	}
		3105	}
		3106
		3107	# load additional modules
		3108	use cf::pod;
2483		3109
2484	END { cf::emergency_save }	3110	END { cf::emergency_save }
2485		3111
2486	1	3112	1
2487		3113

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