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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.138 by root, Fri Jan 5 17:07:17 2007 UTC vs.
Revision 1.292 by root, Tue Jul 3 00:54:57 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 JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
25		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
27		42
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
30		45
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		47
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		49
35	our %COMMAND = ();	50	our %COMMAND = ();
36	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
38		58
		59	our $RELOAD; # number of reloads so far
39	our @EVENT;	60	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		61
42	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	78	our $NEXT_TICK;
45	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
46		84
47	our %CFG;	85	our %CFG;
48		86
49	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	88	our $RUNTIME;
51		89
		90	our %PLAYER; # all users
52	our %MAP; # all maps	91	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	92	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	93
55	our %EXT_CORO;	94	# used to convert map paths into valid unix filenames by replacing / by ∕
		95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
56		100
57	binmode STDOUT;	101	binmode STDOUT;
58	binmode STDERR;	102	binmode STDERR;
59		103
60	# read virtual server time, if available	104	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
65	}	109	}
66		110
67	mkdir cf::localdir;	111	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		113
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
		115
		116	sub cf::map::normalise;
76		117
77	#############################################################################	118	#############################################################################
78		119
79	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
80		121
…		…
87	=item $cf::RUNTIME	128	=item $cf::RUNTIME
88		129
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	131	every server tick.
91		132
92	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		136
94	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
96		141
97	=item $cf::NOW	142	=item $cf::NOW
98		143
99	The time of the last (current) server tick.	144	The time of the last (current) server tick.
100		145
101	=item $cf::TICK	146	=item $cf::TICK
102		147
103	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
104		159
105	=item %cf::CFG	160	=item %cf::CFG
106		161
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	163	from wherever your confdir points to.
		164
		165	=item cf::wait_for_tick, cf::wait_for_tick_begin
		166
		167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		168	returns directly I<after> the tick processing (and consequently, can only wake one process
		169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
109		170
110	=back	171	=back
111		172
112	=cut	173	=cut
113		174
114	BEGIN {	175	BEGIN {
115	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	177	my $msg = join "", @_;
117	utf8::encode $msg;
118		178
119	$msg .= "\n"	179	$msg .= "\n"
120	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
121		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	185	LOG llevError, $msg;
123	};	186	};
124	}	187	}
125		188
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		196
133	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	198	# within the Safe compartment.
135	for my $pkg (qw(	199	for my $pkg (qw(
136	cf::global cf::attachable	200	cf::global cf::attachable
…		…
145		209
146	$Event::DIED = sub {	210	$Event::DIED = sub {
147	warn "error in event callback: @_";	211	warn "error in event callback: @_";
148	};	212	};
149		213
150	my %ext_pkg;	214	#############################################################################
151	my @exts;
152	my @hook;
153		215
154	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
155		217
156	=over 4	218	=over 4
157		219
158	=cut	220	=item dumpval $ref
159		221
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	222	=cut
		223
		224	sub dumpval {
		225	eval {
		226	local $SIG{__DIE__};
		227	my $d;
		228	if (1) {
		229	$d = new Data::Dumper([$_[0]], ["*var"]);
		230	$d->Terse(1);
		231	$d->Indent(2);
		232	$d->Quotekeys(0);
		233	$d->Useqq(1);
		234	#$d->Bless(...);
		235	$d->Seen($_[1]) if @_ > 1;
		236	$d = $d->Dump();
		237	}
		238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		239	$d
		240	} || "[unable to dump $_[0]: '$@']";
		241	}
161		242
162	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
163		244
164	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
165		246
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
174		248
175	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
176		250
177	=cut	251	=cut
178		252
179	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
181	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	256	sub from_json ($) { $json_coder->decode ($_[0]) }
183		257
184	=item cf::lock_wait $string	258	=item cf::lock_wait $string
185		259
186	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
187		261
…		…
193	returned.	267	returned.
194		268
195	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
197		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
198	=cut	276	=cut
199		277
200	our %LOCK;	278	our %LOCK;
201		279
202	sub lock_wait($) {	280	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
223	}	301	}
224	}	302	}
225		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
226	sub freeze_mainloop {	310	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
228		312
229	my $guard = Coro::guard { $TICK_WATCHER->start };	313	my $guard = Coro::guard {
		314	$TICK_WATCHER->start;
		315	};
230	$TICK_WATCHER->stop;	316	$TICK_WATCHER->stop;
231	$guard	317	$guard
232	}	318	}
233		319
		320	=item cf::async { BLOCK }
		321
		322	Currently the same as Coro::async_pool, meaning you cannot use
		323	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		324	thing you are allowed to do is call C<prio> on it.
		325
		326	=cut
		327
		328	BEGIN { *async = \&Coro::async_pool }
		329
234	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
235		331
236	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
237	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
239		336
240	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
241	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
242	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
243	fast or be very important.	340	fast or be very important.
…		…
246		343
247	sub sync_job(&) {	344	sub sync_job(&) {
248	my ($job) = @_;	345	my ($job) = @_;
249		346
250	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
251	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
253		352
254	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
255	# (but this is cancel-safe)	354	# (but this is cancel-safe)
256	my $freeze_guard = freeze_mainloop;	355	my $freeze_guard = freeze_mainloop;
257		356
258	my $busy = 1;	357	my $busy = 1;
259	my @res;	358	my @res;
260		359
261	(Coro::async_pool {	360	(async {
262	@res = eval { $job->() };	361	@res = eval { $job->() };
263	warn $@ if $@;	362	warn $@ if $@;
264	undef $busy;	363	undef $busy;
265	})->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
266		365
267	while ($busy) {	366	while ($busy) {
268	Coro::cede_notself;	367	Coro::cede or Event::one_event;
269	Event::one_event unless Coro::nready;
270	}	368	}
		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
271		376
272	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
273	} else {	378	} else {
274	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
275		380
276	$job->()	381	$job->()
277	}	382	}
278	}	383	}
279		384
280	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
281		386
282	Creates (and readies) and returns a new coro. This coro is automcatially	387	Like async, but this coro is automatically being canceled when the
283	being canceled when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
284		389
285	=cut	390	=cut
286		391
287	sub coro(&) {	392	sub async_ext(&) {
288	my $cb = shift;	393	my $cb = shift;
289		394
290	my $coro = &Coro::async_pool ($cb);	395	my $coro = &Coro::async ($cb);
291		396
292	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
293	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
294	});	399	});
295	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
296		401
297	$coro	402	$coro
298	}	403	}
299		404
300	sub write_runtime {	405	=item fork_call { }, $args
301	my $runtime = cf::localdir . "/runtime";
302		406
303	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
304	or return;	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
305		411
306	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
307	(aio_write $fh, 0, (length $value), $value, 0) <= 0
308	and return;
309		413
310	aio_fsync $fh	414	sub fork_call(&@) {
311	and return;	415	my ($cb, @args) = @_;
312		416
		417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
		421
		422	if (my $pid = fork) {
313	close $fh	423	close $fh2;
314	or return;
315		424
316	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
317	and return;	426	$res = Coro::Storable::thaw $res;
318		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
319	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
320	}	574	}
321		575
322	=back	576	=back
323		577
324	=cut	578	=cut
325
326	#############################################################################
327
328	package cf::path;
329
330	sub new {
331	my ($class, $path, $base) = @_;
332
333	$path = $path->as_string if ref $path;
334
335	my $self = bless { }, $class;
336
337	# {... are special paths that are not touched
338	# ?xxx/... are special absolute paths
339	# ?random/... random maps
340	# /! non-realised random map exit
341	# /... normal maps
342	# ~/... per-player maps without a specific player (DO NOT USE)
343	# ~user/... per-player map of a specific user
344
345	if ($path =~ /^{/) {
346	# fine as it is
347	} elsif ($path =~ s{^\?random/}{}) {
348	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
349	$self->{random} = cf::from_json $data;
350	} else {
351	if ($path =~ s{^~([^/]+)?}{}) {
352	$self->{user_rel} = 1;
353
354	if (defined $1) {
355	$self->{user} = $1;
356	} elsif ($base =~ m{^~([^/]+)/}) {
357	$self->{user} = $1;
358	} else {
359	warn "cannot resolve user-relative path without user <$path,$base>\n";
360	}
361	} elsif ($path =~ /^\//) {
362	# already absolute
363	} else {
364	$base =~ s{[^/]+/?$}{};
365	return $class->new ("$base/$path");
366	}
367
368	for ($path) {
369	redo if s{/\.?/}{/};
370	redo if s{/[^/]+/\.\./}{/};
371	}
372	}
373
374	$self->{path} = $path;
375
376	$self
377	}
378
379	# the name / primary key / in-game path
380	sub as_string {
381	my ($self) = @_;
382
383	$self->{user_rel} ? "~$self->{user}$self->{path}"
384	: $self->{random} ? "?random/$self->{path}"
385	: $self->{path}
386	}
387
388	# the displayed name, this is a one way mapping
389	sub visible_name {
390	my ($self) = @_;
391
392	# if (my $rmp = $self->{random}) {
393	# # todo: be more intelligent about this
394	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
395	# } else {
396	$self->as_string
397	# }
398	}
399
400	# escape the /'s in the path
401	sub _escaped_path {
402	# ∕ is U+2215
403	(my $path = $_[0]{path}) =~ s/\//∕/g;
404	$path
405	}
406
407	# the original (read-only) location
408	sub load_path {
409	my ($self) = @_;
410
411	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
412	}
413
414	# the temporary/swap location
415	sub save_path {
416	my ($self) = @_;
417
418	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
419	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
420	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
421	}
422
423	# the unique path, might be eq to save_path
424	sub uniq_path {
425	my ($self) = @_;
426
427	$self->{user_rel} || $self->{random}
428	? undef
429	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
430	}
431
432	# return random map parameters, or undef
433	sub random_map_params {
434	my ($self) = @_;
435
436	$self->{random}
437	}
438
439	# this is somewhat ugly, but style maps do need special treatment
440	sub is_style_map {
441	$_[0]{path} =~ m{^/styles/}
442	}
443
444	package cf;
445		579
446	#############################################################################	580	#############################################################################
447		581
448	=head2 ATTACHABLE OBJECTS	582	=head2 ATTACHABLE OBJECTS
449		583
…		…
451	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
452	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
453		587
454	In the following description, CLASS can be any of C<global>, C<object>	588	In the following description, CLASS can be any of C<global>, C<object>
455	C<player>, C<client> or C<map> (i.e. the attachable objects in	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
456	crossfire+).	590	Crossfire TRT).
457		591
458	=over 4	592	=over 4
459		593
460	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
461		595
…		…
575	our @CB_TYPE = (); # registry for type (cf-object class) based events	709	our @CB_TYPE = (); # registry for type (cf-object class) based events
576	our @CB_MAP = ();	710	our @CB_MAP = ();
577		711
578	my %attachment;	712	my %attachment;
579		713
		714	sub cf::attachable::thawer_merge {
		715	# simply override everything except _meta
		716	local $_[0]{_meta};
		717	%{$_[0]} = %{$_[1]};
		718	}
		719
580	sub _attach_cb($$$$) {	720	sub _attach_cb($$$$) {
581	my ($registry, $event, $prio, $cb) = @_;	721	my ($registry, $event, $prio, $cb) = @_;
582		722
583	use sort 'stable';	723	use sort 'stable';
584		724
…		…
618	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
619		759
620	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
621	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
622	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
623	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
624		764
625	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
626	my $pkg = shift @arg;	766	my $pkg = shift @arg;
627		767
628	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
657	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
658	}	798	}
659		799
660	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
661	} else {	801	} else {
662	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
663	}	803	}
664		804
665	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
666	}	806	}
667		807
…		…
669	if (ref $_[0]) {	809	if (ref $_[0]) {
670	_object_attach @_;	810	_object_attach @_;
671	} else {	811	} else {
672	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
673	}	813	}
		814	_recalc_want;
674	};	815	};
675		816
676	# all those should be optimised	817	# all those should be optimised
677	sub cf::attachable::detach {	818	sub cf::attachable::detach {
678	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
681	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
682	reattach ($obj);	823	reattach ($obj);
683	} else {	824	} else {
684	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
685	}	826	}
		827	_recalc_want;
686	};	828	};
687		829
688	sub cf::attachable::attached {	830	sub cf::attachable::attached {
689	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
690		832
…		…
755	# object support	897	# object support
756		898
757	sub reattach {	899	sub reattach {
758	# basically do the same as instantiate, without calling instantiate	900	# basically do the same as instantiate, without calling instantiate
759	my ($obj) = @_;	901	my ($obj) = @_;
		902
		903	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
760		904
761	my $registry = $obj->registry;	905	my $registry = $obj->registry;
762		906
763	@$registry = ();	907	@$registry = ();
764		908
…		…
811	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
812		956
813	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
814	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
815	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
816	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
817	close $fh;	961	close $fh;
818		962
819	if (@$objs) {	963	if (@$objs) {
820	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	964	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
821	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
822	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
823	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
824	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
825	close $fh;	969	close $fh;
826	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
827	}	971	}
828	} else {	972	} else {
829	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
861	or return;	1005	or return;
862	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
863	}	1007	}
864		1008
865	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
866	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
867	return ($data, $av);	1011	return ($data, $av);
868	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
869		1019
870	#############################################################################	1020	#############################################################################
871	# command handling &c	1021	# command handling &c
872		1022
873	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
886	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
887	}	1037	}
888		1038
889	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
890		1040
891	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
892		1046
893	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
894	called.	1048	called.
895		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
896	=cut	1061	=cut
897		1062
898	sub register_extcmd {	1063	sub register_extcmd {
899	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
900		1065
901	my $caller = caller;
902	#warn "registering extcmd '$name' to '$caller'";
903
904	$EXTCMD{$name} = [$cb, $caller];	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
905	}	1073	}
906		1074
907	cf::player->attach (	1075	cf::player->attach (
908	on_command => sub {	1076	on_command => sub {
909	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
918	cf::override;	1086	cf::override;
919	},	1087	},
920	on_extcmd => sub {	1088	on_extcmd => sub {
921	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
922		1090
923	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
924		1092
925	if (ref $msg) {	1093	if (ref $msg) {
926	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
927	if (my %reply = $cb->[0]->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
928	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
929	}	1097	}
930	}	1098	}
931	} else {	1099	} else {
932	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1100	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
934		1102
935	cf::override;	1103	cf::override;
936	},	1104	},
937	);	1105	);
938		1106
939	sub register {
940	my ($base, $pkg) = @_;
941
942	#TODO
943	}
944
945	sub load_extension {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
		1111	for my $path (<$LIBDIR/*.ext>) {
		1112	next unless -r $path;
		1113
		1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
		1171	}
		1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
		1177	};
		1178	}
		1179
		1180	#############################################################################
		1181
		1182	=back
		1183
		1184	=head2 CORE EXTENSIONS
		1185
		1186	Functions and methods that extend core crossfire objects.
		1187
		1188	=cut
		1189
		1190	package cf::player;
		1191
		1192	use Coro::AIO;
		1193
		1194	=head3 cf::player
		1195
		1196	=over 4
		1197
		1198	=item cf::player::find $login
		1199
		1200	Returns the given player object, loading it if necessary (might block).
		1201
		1202	=cut
		1203
		1204	sub playerdir($) {
		1205	"$PLAYERDIR/"
		1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1207	}
		1208
		1209	sub path($) {
		1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1211
		1212	(playerdir $login) . "/playerdata"
		1213	}
		1214
		1215	sub find_active($) {
		1216	$cf::PLAYER{$_[0]}
		1217	and $cf::PLAYER{$_[0]}->active
		1218	and $cf::PLAYER{$_[0]}
		1219	}
		1220
		1221	sub exists($) {
		1222	my ($login) = @_;
		1223
		1224	$cf::PLAYER{$login}
		1225	or cf::sync_job { !aio_stat path $login }
		1226	}
		1227
		1228	sub find($) {
		1229	return $cf::PLAYER{$_[0]} || do {
		1230	my $login = $_[0];
		1231
		1232	my $guard = cf::lock_acquire "user_find:$login";
		1233
		1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
		1242	my $pl = load_pl path $login
		1243	or return;
		1244	$cf::PLAYER{$login} = $pl
		1245	}
		1246	}
		1247	}
		1248
		1249	sub save($) {
		1250	my ($pl) = @_;
		1251
		1252	return if $pl->{deny_save};
		1253
		1254	my $path = path $pl;
		1255	my $guard = cf::lock_acquire "user_save:$path";
		1256
		1257	return if $pl->{deny_save};
		1258
		1259	aio_mkdir playerdir $pl, 0770;
		1260	$pl->{last_save} = $cf::RUNTIME;
		1261
		1262	$pl->save_pl ($path);
		1263	Coro::cede;
		1264	}
		1265
		1266	sub new($) {
		1267	my ($login) = @_;
		1268
		1269	my $self = create;
		1270
		1271	$self->ob->name ($login);
		1272	$self->{deny_save} = 1;
		1273
		1274	$cf::PLAYER{$login} = $self;
		1275
		1276	$self
		1277	}
		1278
		1279	=item $pl->quit_character
		1280
		1281	Nukes the player without looking back. If logged in, the connection will
		1282	be destroyed. May block for a long time.
		1283
		1284	=cut
		1285
		1286	sub quit_character {
		1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
		1290
		1291	$pl->{deny_save} = 1;
		1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1293
		1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1295	$pl->deactivate;
		1296	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1297	$pl->ns->destroy if $pl->ns;
		1298
		1299	my $path = playerdir $pl;
		1300	my $temp = "$path~$cf::RUNTIME~deleting~";
		1301	aio_rename $path, $temp;
		1302	delete $cf::PLAYER{$pl->ob->name};
		1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
		1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
		1325	}
		1326
		1327	=item cf::player::list_logins
		1328
		1329	Returns am arrayref of all valid playernames in the system, can take a
		1330	while and may block, so not sync_job-capable, ever.
		1331
		1332	=cut
		1333
		1334	sub list_logins {
		1335	my $dirs = aio_readdir $PLAYERDIR
		1336	or return [];
		1337
		1338	my @logins;
		1339
		1340	for my $login (@$dirs) {
		1341	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1342	aio_read $fh, 0, 512, my $buf, 0 or next;
		1343	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1344
		1345	utf8::decode $login;
		1346	push @logins, $login;
		1347	}
		1348
		1349	\@logins
		1350	}
		1351
		1352	=item $player->maps
		1353
		1354	Returns an arrayref of map paths that are private for this
		1355	player. May block.
		1356
		1357	=cut
		1358
		1359	sub maps($) {
		1360	my ($pl) = @_;
		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
		1364	my $files = aio_readdir playerdir $pl
		1365	or return;
		1366
		1367	my @paths;
		1368
		1369	for (@$files) {
		1370	utf8::decode $_;
		1371	next if /\.(?:pl|pst)$/;
		1372	next unless /^$PATH_SEP/o;
		1373
		1374	push @paths, cf::map::normalise "~$pl/$_";
		1375	}
		1376
		1377	\@paths
		1378	}
		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s{H<([^\>]*)>}
		1406	{
		1407	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1408	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1409	"")
		1410	[$self->{hintmode}]
		1411	}ge;
		1412
		1413	# create single paragraphs (very hackish)
		1414	s/(?<=\S)\n(?=\w)/ /g;
		1415
		1416	# compress some whitespace
		1417	1 while s/\s*\n\s*\n\s*/\n/;
		1418
		1419	$_
		1420	}
		1421
		1422	sub hintmode {
		1423	$_[0]{hintmode} = $_[1] if @_ > 1;
		1424	$_[0]{hintmode}
		1425	}
		1426
		1427	=item $player->ext_reply ($msgid, %msg)
		1428
		1429	Sends an ext reply to the player.
		1430
		1431	=cut
		1432
		1433	sub ext_reply($$%) {
		1434	my ($self, $id, %msg) = @_;
		1435
		1436	$msg{msgid} = $id;
		1437	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1438	}
		1439
		1440	=item $player->ext_event ($type, %msg)
		1441
		1442	Sends an ext event to the client.
		1443
		1444	=cut
		1445
		1446	sub ext_event($$%) {
		1447	my ($self, $type, %msg) = @_;
		1448
		1449	$self->ns->ext_event ($type, %msg);
		1450	}
		1451
		1452	=head3 cf::region
		1453
		1454	=over 4
		1455
		1456	=cut
		1457
		1458	package cf::region;
		1459
		1460	=item cf::region::find_by_path $path
		1461
		1462	Tries to decuce the likely region for a map knowing only its path.
		1463
		1464	=cut
		1465
		1466	sub find_by_path($) {
946	my ($path) = @_;	1467	my ($path) = @_;
947		1468
948	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1469	my ($match, $specificity);
949	my $base = $1;
950	my $pkg = $1;
951	$pkg =~ s/[^[:word:]]/_/g;
952	$pkg = "ext::$pkg";
953		1470
954	warn "loading '$path' into '$pkg'\n";	1471	for my $region (list) {
955		1472	if ($region->match && $path =~ $region->match) {
956	open my $fh, "<:utf8", $path	1473	($match, $specificity) = ($region, $region->specificity)
957	or die "$path: $!";	1474	if $region->specificity > $specificity;
958		1475	}
959	my $source =
960	"package $pkg; use strict; use utf8;\n"
961	. "#line 1 \"$path\"\n{\n"
962	. (do { local $/; <$fh> })
963	. "\n};\n1";
964
965	eval $source
966	or die $@ ? "$path: $@\n"
967	: "extension disabled.\n";
968
969	push @exts, $pkg;
970	$ext_pkg{$base} = $pkg;
971
972	# no strict 'refs';
973	# @{"$pkg\::ISA"} = ext::;
974
975	register $base, $pkg;
976	}
977
978	sub unload_extension {
979	my ($pkg) = @_;
980
981	warn "removing extension $pkg\n";
982
983	# remove hooks
984	#TODO
985	# for my $idx (0 .. $#PLUGIN_EVENT) {
986	# delete $hook[$idx]{$pkg};
987	# }	1476	}
988		1477
989	# remove commands	1478	$match
990	for my $name (keys %COMMAND) {
991	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
992
993	if (@cb) {
994	$COMMAND{$name} = \@cb;
995	} else {
996	delete $COMMAND{$name};
997	}
998	}
999
1000	# remove extcmds
1001	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1002	delete $EXTCMD{$name};
1003	}
1004
1005	if (my $cb = $pkg->can ("unload")) {
1006	eval {
1007	$cb->($pkg);
1008	1
1009	} or warn "$pkg unloaded, but with errors: $@";
1010	}
1011
1012	Symbol::delete_package $pkg;
1013	}
1014
1015	sub load_extensions {
1016	for my $ext (<$LIBDIR/*.ext>) {
1017	next unless -r $ext;
1018	eval {
1019	load_extension $ext;
1020	1
1021	} or warn "$ext not loaded: $@";
1022	}
1023	}
1024
1025	#############################################################################
1026	# load/save/clean perl data associated with a map
1027
1028	*cf::mapsupport::on_clean = sub {
1029	my ($map) = @_;
1030
1031	my $path = $map->tmpname;
1032	defined $path or return;
1033
1034	unlink "$path.pst";
1035	};
1036
1037	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1038
1039	#############################################################################
1040	# load/save perl data associated with player->ob objects
1041
1042	sub all_objects(@) {
1043	@_, map all_objects ($_->inv), @_
1044	}
1045
1046	# TODO: compatibility cruft, remove when no longer needed
1047	cf::player->attach (
1048	on_load => sub {
1049	my ($pl, $path) = @_;
1050
1051	for my $o (all_objects $pl->ob) {
1052	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1053	$o->set_ob_key_value ("_perl_data");
1054
1055	%$o = %{ Storable::thaw pack "H*", $value };
1056	}
1057	}
1058	},
1059	);
1060
1061	#############################################################################
1062
1063	=head2 CORE EXTENSIONS
1064
1065	Functions and methods that extend core crossfire objects.
1066
1067	=head3 cf::player
1068
1069	=over 4
1070
1071	=item cf::player::exists $login
1072
1073	Returns true when the given account exists.
1074
1075	=cut
1076
1077	sub cf::player::exists($) {
1078	cf::player::find $_[0]
1079	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1080	}
1081
1082	=item $player->ext_reply ($msgid, $msgtype, %msg)
1083
1084	Sends an ext reply to the player.
1085
1086	=cut
1087
1088	sub cf::player::ext_reply($$$%) {
1089	my ($self, $id, %msg) = @_;
1090
1091	$msg{msgid} = $id;
1092
1093	$self->send ("ext " . to_json \%msg);
1094	}	1479	}
1095		1480
1096	=back	1481	=back
1097
1098		1482
1099	=head3 cf::map	1483	=head3 cf::map
1100		1484
1101	=over 4	1485	=over 4
1102		1486
…		…
1105	package cf::map;	1489	package cf::map;
1106		1490
1107	use Fcntl;	1491	use Fcntl;
1108	use Coro::AIO;	1492	use Coro::AIO;
1109		1493
		1494	use overload
		1495	'""' => \&as_string,
		1496	fallback => 1;
		1497
1110	our $MAX_RESET = 3600;	1498	our $MAX_RESET = 3600;
1111	our $DEFAULT_RESET = 3000;	1499	our $DEFAULT_RESET = 3000;
1112		1500
1113	sub generate_random_map {	1501	sub generate_random_map {
1114	my ($path, $rmp) = @_;	1502	my ($self, $rmp) = @_;
1115
1116	# mit "rum" bekleckern, nicht	1503	# mit "rum" bekleckern, nicht
1117	cf::map::_create_random_map	1504	$self->_create_random_map (
1118	$path,
1119	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1505	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1120	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1506	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1121	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1507	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1122	$rmp->{exit_on_final_map},	1508	$rmp->{exit_on_final_map},
1123	$rmp->{xsize}, $rmp->{ysize},	1509	$rmp->{xsize}, $rmp->{ysize},
1124	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1510	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1125	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1511	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1126	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1512	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1127	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1513	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1128	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1514	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1129	(cf::region::find $rmp->{region})	1515	(cf::region::find $rmp->{region}), $rmp->{custom}
		1516	)
		1517	}
		1518
		1519	=item cf::map->register ($regex, $prio)
		1520
		1521	Register a handler for the map path matching the given regex at the
		1522	givne priority (higher is better, built-in handlers have priority 0, the
		1523	default).
		1524
		1525	=cut
		1526
		1527	sub register {
		1528	my (undef, $regex, $prio) = @_;
		1529	my $pkg = caller;
		1530
		1531	no strict;
		1532	push @{"$pkg\::ISA"}, __PACKAGE__;
		1533
		1534	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1535	}
		1536
		1537	# also paths starting with '/'
		1538	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1539
		1540	sub thawer_merge {
		1541	my ($self, $merge) = @_;
		1542
		1543	# we have to keep some variables in memory intact
		1544	local $self->{path};
		1545	local $self->{load_path};
		1546
		1547	$self->SUPER::thawer_merge ($merge);
		1548	}
		1549
		1550	sub normalise {
		1551	my ($path, $base) = @_;
		1552
		1553	$path = "$path"; # make sure its a string
		1554
		1555	$path =~ s/\.map$//;
		1556
		1557	# map plan:
		1558	#
		1559	# /! non-realised random map exit (special hack!)
		1560	# {... are special paths that are not being touched
		1561	# ?xxx/... are special absolute paths
		1562	# ?random/... random maps
		1563	# /... normal maps
		1564	# ~user/... per-player map of a specific user
		1565
		1566	$path =~ s/$PATH_SEP/\//go;
		1567
		1568	# treat it as relative path if it starts with
		1569	# something that looks reasonable
		1570	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1571	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1572
		1573	$base =~ s{[^/]+/?$}{};
		1574	$path = "$base/$path";
		1575	}
		1576
		1577	for ($path) {
		1578	redo if s{//}{/};
		1579	redo if s{/\.?/}{/};
		1580	redo if s{/[^/]+/\.\./}{/};
		1581	}
		1582
		1583	$path
		1584	}
		1585
		1586	sub new_from_path {
		1587	my (undef, $path, $base) = @_;
		1588
		1589	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1590
		1591	$path = normalise $path, $base;
		1592
		1593	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1594	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1595	my $self = bless cf::map::new, $pkg;
		1596	$self->{path} = $path; $self->path ($path);
		1597	$self->init; # pass $1 etc.
		1598	return $self;
		1599	}
		1600	}
		1601
		1602	Carp::carp "unable to resolve path '$path' (base '$base').";
		1603	()
		1604	}
		1605
		1606	sub init {
		1607	my ($self) = @_;
		1608
		1609	$self
		1610	}
		1611
		1612	sub as_string {
		1613	my ($self) = @_;
		1614
		1615	"$self->{path}"
		1616	}
		1617
		1618	# the displayed name, this is a one way mapping
		1619	sub visible_name {
		1620	&as_string
		1621	}
		1622
		1623	# the original (read-only) location
		1624	sub load_path {
		1625	my ($self) = @_;
		1626
		1627	"$MAPDIR/$self->{path}.map"
		1628	}
		1629
		1630	# the temporary/swap location
		1631	sub save_path {
		1632	my ($self) = @_;
		1633
		1634	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1635	"$TMPDIR/$path.map"
		1636	}
		1637
		1638	# the unique path, undef == no special unique path
		1639	sub uniq_path {
		1640	my ($self) = @_;
		1641
		1642	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1643	"$UNIQUEDIR/$path"
1130	}	1644	}
1131		1645
1132	# and all this just because we cannot iterate over	1646	# and all this just because we cannot iterate over
1133	# all maps in C++...	1647	# all maps in C++...
1134	sub change_all_map_light {	1648	sub change_all_map_light {
…		…
1136		1650
1137	$_->change_map_light ($change)	1651	$_->change_map_light ($change)
1138	for grep $_->outdoor, values %cf::MAP;	1652	for grep $_->outdoor, values %cf::MAP;
1139	}	1653	}
1140		1654
		1655	sub decay_objects {
		1656	my ($self) = @_;
		1657
		1658	return if $self->{deny_reset};
		1659
		1660	$self->do_decay_objects;
		1661	}
		1662
		1663	sub unlink_save {
		1664	my ($self) = @_;
		1665
		1666	utf8::encode (my $save = $self->save_path);
		1667	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1668	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1669	}
		1670
1141	sub try_load_header($) {	1671	sub load_header_from($) {
1142	my ($path) = @_;	1672	my ($self, $path) = @_;
1143		1673
1144	utf8::encode $path;	1674	utf8::encode $path;
1145	aio_open $path, O_RDONLY, 0	1675	#aio_open $path, O_RDONLY, 0
		1676	# or return;
		1677
		1678	$self->_load_header ($path)
1146	or return;	1679	or return;
1147		1680
1148	my $map = cf::map::new	1681	$self->{load_path} = $path;
		1682
		1683	1
		1684	}
		1685
		1686	sub load_header_orig {
		1687	my ($self) = @_;
		1688
		1689	$self->load_header_from ($self->load_path)
		1690	}
		1691
		1692	sub load_header_temp {
		1693	my ($self) = @_;
		1694
		1695	$self->load_header_from ($self->save_path)
		1696	}
		1697
		1698	sub prepare_temp {
		1699	my ($self) = @_;
		1700
		1701	$self->last_access ((delete $self->{last_access})
		1702	|| $cf::RUNTIME); #d#
		1703	# safety
		1704	$self->{instantiate_time} = $cf::RUNTIME
		1705	if $self->{instantiate_time} > $cf::RUNTIME;
		1706	}
		1707
		1708	sub prepare_orig {
		1709	my ($self) = @_;
		1710
		1711	$self->{load_original} = 1;
		1712	$self->{instantiate_time} = $cf::RUNTIME;
		1713	$self->last_access ($cf::RUNTIME);
		1714	$self->instantiate;
		1715	}
		1716
		1717	sub load_header {
		1718	my ($self) = @_;
		1719
		1720	if ($self->load_header_temp) {
		1721	$self->prepare_temp;
		1722	} else {
		1723	$self->load_header_orig
1149	or return;	1724	or return;
		1725	$self->prepare_orig;
		1726	}
1150		1727
1151	# for better error messages only, will be overwritten	1728	$self->{deny_reset} = 1
1152	$map->path ($path);	1729	if $self->no_reset;
1153		1730
1154	$map->load_header ($path)	1731	$self->default_region (cf::region::find_by_path $self->{path})
1155	or return;	1732	unless $self->default_region;
1156		1733
1157	$map->{load_path} = $path;	1734	1
1158
1159	$map
1160	}	1735	}
1161		1736
1162	sub find;	1737	sub find;
1163	sub find {	1738	sub find {
1164	my ($path, $origin) = @_;	1739	my ($path, $origin) = @_;
1165		1740
1166	#warn "find<$path,$origin>\n";#d#
1167
1168	$path = new cf::path $path, $origin && $origin->path;	1741	$path = normalise $path, $origin && $origin->path;
1169	my $key = $path->as_string;
1170		1742
1171	cf::lock_wait "map_find:$key";	1743	cf::lock_wait "map_find:$path";
1172		1744
1173	$cf::MAP{$key} || do {	1745	$cf::MAP{$path} || do {
1174	my $guard = cf::lock_acquire "map_find:$key";	1746	my $guard = cf::lock_acquire "map_find:$path";
1175		1747	my $map = new_from_path cf::map $path
1176	# do it the slow way
1177	my $map = try_load_header $path->save_path;
1178
1179	Coro::cede;
1180
1181	if ($map) {
1182	$map->last_access ((delete $map->{last_access})
1183	|| $cf::RUNTIME); #d#
1184	# safety
1185	$map->{instantiate_time} = $cf::RUNTIME
1186	if $map->{instantiate_time} > $cf::RUNTIME;
1187	} else {
1188	if (my $rmp = $path->random_map_params) {
1189	$map = generate_random_map $key, $rmp;
1190	} else {
1191	$map = try_load_header $path->load_path;
1192	}
1193
1194	$map or return;	1748	or return;
1195		1749
1196	$map->{load_original} = 1;
1197	$map->{instantiate_time} = $cf::RUNTIME;
1198	$map->last_access ($cf::RUNTIME);
1199	$map->instantiate;
1200
1201	# per-player maps become, after loading, normal maps
1202	$map->per_player (0) if $path->{user_rel};
1203	}
1204
1205	$map->path ($key);
1206	$map->{path} = $path;
1207	$map->{last_save} = $cf::RUNTIME;	1750	$map->{last_save} = $cf::RUNTIME;
1208		1751
1209	Coro::cede;	1752	$map->load_header
		1753	or return;
1210		1754
1211	if ($map->should_reset) {	1755	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1756	# doing this can freeze the server in a sync job, obviously
		1757	#$cf::WAIT_FOR_TICK->wait;
1212	$map->reset;	1758	$map->reset;
1213	undef $guard;	1759	undef $guard;
1214	$map = find $path	1760	return find $path;
1215	or return;
1216	}	1761	}
1217		1762
1218	$cf::MAP{$key} = $map	1763	$cf::MAP{$path} = $map
1219	}	1764	}
1220	}	1765	}
		1766
		1767	sub pre_load { }
		1768	sub post_load { }
1221		1769
1222	sub load {	1770	sub load {
1223	my ($self) = @_;	1771	my ($self) = @_;
1224		1772
		1773	local $self->{deny_reset} = 1; # loading can take a long time
		1774
1225	my $path = $self->{path};	1775	my $path = $self->{path};
		1776
		1777	{
1226	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1778	my $guard = cf::lock_acquire "map_load:$path";
1227		1779
1228	return if $self->in_memory != cf::MAP_SWAPPED;	1780	return if $self->in_memory != cf::MAP_SWAPPED;
1229		1781
1230	$self->in_memory (cf::MAP_LOADING);	1782	$self->in_memory (cf::MAP_LOADING);
1231		1783
1232	$self->alloc;	1784	$self->alloc;
		1785
		1786	$self->pre_load;
		1787	Coro::cede;
		1788
1233	$self->load_objects ($self->{load_path}, 1)	1789	$self->_load_objects ($self->{load_path}, 1)
1234	or return;	1790	or return;
1235		1791
1236	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1792	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1237	if delete $self->{load_original};	1793	if delete $self->{load_original};
1238		1794
1239	if (my $uniq = $path->uniq_path) {	1795	if (my $uniq = $self->uniq_path) {
1240	utf8::encode $uniq;	1796	utf8::encode $uniq;
1241	if (aio_open $uniq, O_RDONLY, 0) {	1797	if (aio_open $uniq, O_RDONLY, 0) {
1242	$self->clear_unique_items;	1798	$self->clear_unique_items;
1243	$self->load_objects ($uniq, 0);	1799	$self->_load_objects ($uniq, 0);
1244	}	1800	}
1245	}	1801	}
1246		1802
1247	Coro::cede;	1803	Coro::cede;
1248
1249	# now do the right thing for maps	1804	# now do the right thing for maps
1250	$self->link_multipart_objects;	1805	$self->link_multipart_objects;
1251
1252	if ($self->{path}->is_style_map) {
1253	$self->{deny_save} = 1;
1254	$self->{deny_reset} = 1;
1255	} else {
1256	$self->fix_auto_apply;
1257	$self->decay_objects;
1258	$self->update_buttons;
1259	$self->set_darkness_map;
1260	$self->difficulty ($self->estimate_difficulty)	1806	$self->difficulty ($self->estimate_difficulty)
1261	unless $self->difficulty;	1807	unless $self->difficulty;
		1808	Coro::cede;
		1809
		1810	unless ($self->{deny_activate}) {
		1811	$self->decay_objects;
		1812	$self->fix_auto_apply;
		1813	$self->update_buttons;
		1814	Coro::cede;
		1815	$self->set_darkness_map;
		1816	Coro::cede;
1262	$self->activate;	1817	$self->activate;
1263	}	1818	}
1264		1819
1265	Coro::cede;
1266
1267	$self->in_memory (cf::MAP_IN_MEMORY);	1820	$self->in_memory (cf::MAP_IN_MEMORY);
		1821	}
		1822
		1823	$self->post_load;
		1824	}
		1825
		1826	sub customise_for {
		1827	my ($self, $ob) = @_;
		1828
		1829	return find "~" . $ob->name . "/" . $self->{path}
		1830	if $self->per_player;
		1831
		1832	# return find "?party/" . $ob->name . "/" . $self->{path}
		1833	# if $self->per_party;
		1834
		1835	$self
		1836	}
		1837
		1838	# find and load all maps in the 3x3 area around a map
		1839	sub load_diag {
		1840	my ($map) = @_;
		1841
		1842	my @diag; # diagonal neighbours
		1843
		1844	for (0 .. 3) {
		1845	my $neigh = $map->tile_path ($_)
		1846	or next;
		1847	$neigh = find $neigh, $map
		1848	or next;
		1849	$neigh->load;
		1850
		1851	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1852	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1853	}
		1854
		1855	for (@diag) {
		1856	my $neigh = find @$_
		1857	or next;
		1858	$neigh->load;
		1859	}
1268	}	1860	}
1269		1861
1270	sub find_sync {	1862	sub find_sync {
1271	my ($path, $origin) = @_;	1863	my ($path, $origin) = @_;
1272		1864
1273	cf::sync_job { cf::map::find $path, $origin }	1865	cf::sync_job { find $path, $origin }
1274	}	1866	}
1275		1867
1276	sub do_load_sync {	1868	sub do_load_sync {
1277	my ($map) = @_;	1869	my ($map) = @_;
1278		1870
1279	cf::sync_job { $map->load };	1871	cf::sync_job { $map->load };
1280	}	1872	}
1281		1873
		1874	our %MAP_PREFETCH;
		1875	our $MAP_PREFETCHER = undef;
		1876
		1877	sub find_async {
		1878	my ($path, $origin) = @_;
		1879
		1880	$path = normalise $path, $origin && $origin->{path};
		1881
		1882	if (my $map = $cf::MAP{$path}) {
		1883	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1884	}
		1885
		1886	undef $MAP_PREFETCH{$path};
		1887	$MAP_PREFETCHER ||= cf::async {
		1888	while (%MAP_PREFETCH) {
		1889	for my $path (keys %MAP_PREFETCH) {
		1890	my $map = find $path
		1891	or next;
		1892	$map->load;
		1893
		1894	delete $MAP_PREFETCH{$path};
		1895	}
		1896	}
		1897	undef $MAP_PREFETCHER;
		1898	};
		1899	$MAP_PREFETCHER->prio (6);
		1900
		1901	()
		1902	}
		1903
1282	sub save {	1904	sub save {
1283	my ($self) = @_;	1905	my ($self) = @_;
1284		1906
1285	my $lock = cf::lock_acquire "map_data:" . $self->path;	1907	my $lock = cf::lock_acquire "map_data:" . $self->path;
1286		1908
1287	$self->{last_save} = $cf::RUNTIME;	1909	$self->{last_save} = $cf::RUNTIME;
1288		1910
1289	return unless $self->dirty;	1911	return unless $self->dirty;
1290		1912
1291	my $save = $self->{path}->save_path; utf8::encode $save;	1913	my $save = $self->save_path; utf8::encode $save;
1292	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1914	my $uniq = $self->uniq_path; utf8::encode $uniq;
1293		1915
1294	$self->{load_path} = $save;	1916	$self->{load_path} = $save;
1295		1917
1296	return if $self->{deny_save};	1918	return if $self->{deny_save};
1297		1919
1298	local $self->{last_access} = $self->last_access;#d#	1920	local $self->{last_access} = $self->last_access;#d#
1299		1921
		1922	cf::async {
		1923	$_->contr->save for $self->players;
		1924	};
		1925
1300	if ($uniq) {	1926	if ($uniq) {
1301	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1927	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1302	$self->save_objects ($uniq, cf::IO_UNIQUES);	1928	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1303	} else {	1929	} else {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1930	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1305	}	1931	}
1306	}	1932	}
1307		1933
1308	sub swap_out {	1934	sub swap_out {
1309	my ($self) = @_;	1935	my ($self) = @_;
…		…
1323		1949
1324	sub reset_at {	1950	sub reset_at {
1325	my ($self) = @_;	1951	my ($self) = @_;
1326		1952
1327	# TODO: safety, remove and allow resettable per-player maps	1953	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};
1329	return 1e99 if $self->{deny_reset};	1954	return 1e99 if $self->{deny_reset};
1330		1955
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1956	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1957	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		1958
…		…
1338	my ($self) = @_;	1963	my ($self) = @_;
1339		1964
1340	$self->reset_at <= $cf::RUNTIME	1965	$self->reset_at <= $cf::RUNTIME
1341	}	1966	}
1342		1967
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	1968	sub reset {
1365	my ($self) = @_;	1969	my ($self) = @_;
1366		1970
1367	my $lock = cf::lock_acquire "map_data:" . $self->path;	1971	my $lock = cf::lock_acquire "map_data:$self->{path}";
1368		1972
1369	return if $self->players;	1973	return if $self->players;
1370	return if $self->{path}{user_rel};#d#
1371		1974
1372	warn "resetting map ", $self->path;#d#	1975	warn "resetting map ", $self->path;
		1976
		1977	$self->in_memory (cf::MAP_SWAPPED);
		1978
		1979	# need to save uniques path
		1980	unless ($self->{deny_save}) {
		1981	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1982
		1983	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1984	if $uniq;
		1985	}
1373		1986
1374	delete $cf::MAP{$self->path};	1987	delete $cf::MAP{$self->path};
		1988
		1989	$self->clear;
1375		1990
1376	$_->clear_links_to ($self) for values %cf::MAP;	1991	$_->clear_links_to ($self) for values %cf::MAP;
1377		1992
1378	$self->unlink_save;	1993	$self->unlink_save;
1379	$self->destroy;	1994	$self->destroy;
…		…
1382	my $nuke_counter = "aaaa";	1997	my $nuke_counter = "aaaa";
1383		1998
1384	sub nuke {	1999	sub nuke {
1385	my ($self) = @_;	2000	my ($self) = @_;
1386		2001
		2002	delete $cf::MAP{$self->path};
		2003
		2004	$self->unlink_save;
		2005
		2006	bless $self, "cf::map";
		2007	delete $self->{deny_reset};
1387	$self->{deny_save} = 1;	2008	$self->{deny_save} = 1;
1388	$self->reset_timeout (1);	2009	$self->reset_timeout (1);
1389	$self->rename ("{nuke}/" . ($nuke_counter++));	2010	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2011
		2012	$cf::MAP{$self->path} = $self;
		2013
1390	$self->reset; # polite request, might not happen	2014	$self->reset; # polite request, might not happen
1391	}	2015	}
1392		2016
1393	sub customise_for {	2017	=item $maps = cf::map::tmp_maps
1394	my ($map, $ob) = @_;
1395		2018
1396	if ($map->per_player) {	2019	Returns an arrayref with all map paths of currently instantiated and saved
1397	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2020	maps. May block.
		2021
		2022	=cut
		2023
		2024	sub tmp_maps() {
1398	}	2025	[
1399		2026	map {
1400	$map	2027	utf8::decode $_;
		2028	/\.map$/
		2029	? normalise $_
		2030	: ()
		2031	} @{ aio_readdir $TMPDIR or [] }
		2032	]
1401	}	2033	}
1402		2034
1403	sub emergency_save {	2035	=item $maps = cf::map::random_maps
1404	my $freeze_guard = cf::freeze_mainloop;
1405		2036
1406	warn "enter emergency map save\n";	2037	Returns an arrayref with all map paths of currently instantiated and saved
		2038	random maps. May block.
1407		2039
1408	cf::sync_job {	2040	=cut
1409	warn "begin emergency map save\n";
1410	$_->save for values %cf::MAP;
1411	};
1412		2041
1413	warn "end emergency map save\n";	2042	sub random_maps() {
		2043	[
		2044	map {
		2045	utf8::decode $_;
		2046	/\.map$/
		2047	? normalise "?random/$_"
		2048	: ()
		2049	} @{ aio_readdir $RANDOMDIR or [] }
		2050	]
		2051	}
		2052
		2053	=item cf::map::unique_maps
		2054
		2055	Returns an arrayref of paths of all shared maps that have
		2056	instantiated unique items. May block.
		2057
		2058	=cut
		2059
		2060	sub unique_maps() {
		2061	[
		2062	map {
		2063	utf8::decode $_;
		2064	/\.map$/
		2065	? normalise $_
		2066	: ()
		2067	} @{ aio_readdir $UNIQUEDIR or [] }
		2068	]
1414	}	2069	}
1415		2070
1416	package cf;	2071	package cf;
1417		2072
1418	=back	2073	=back
1419		2074
		2075	=head3 cf::object
		2076
		2077	=cut
		2078
		2079	package cf::object;
		2080
		2081	=over 4
		2082
		2083	=item $ob->inv_recursive
		2084
		2085	Returns the inventory of the object _and_ their inventories, recursively.
		2086
		2087	=cut
		2088
		2089	sub inv_recursive_;
		2090	sub inv_recursive_ {
		2091	map { $_, inv_recursive_ $_->inv } @_
		2092	}
		2093
		2094	sub inv_recursive {
		2095	inv_recursive_ inv $_[0]
		2096	}
		2097
		2098	package cf;
		2099
		2100	=back
1420		2101
1421	=head3 cf::object::player	2102	=head3 cf::object::player
1422		2103
1423	=over 4	2104	=over 4
1424		2105
…		…
1438		2119
1439	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2120	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1440		2121
1441	if ($self->{record_replies}) {	2122	if ($self->{record_replies}) {
1442	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2123	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2124
1443	} else {	2125	} else {
		2126	my $pl = $self->contr;
		2127
		2128	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2129	my $diag = $pl->{npc_dialog};
		2130	$diag->{pl}->ext_reply (
		2131	$diag->{id},
		2132	msgtype => "reply",
		2133	msg => $diag->{pl}->expand_cfpod ($msg),
		2134	add_topics => []
		2135	);
		2136
		2137	} else {
1444	$msg = $npc->name . " says: $msg" if $npc;	2138	$msg = $npc->name . " says: $msg" if $npc;
1445	$self->message ($msg, $flags);	2139	$self->message ($msg, $flags);
		2140	}
1446	}	2141	}
1447	}	2142	}
1448		2143
1449	=item $player_object->may ("access")	2144	=item $player_object->may ("access")
1450		2145
…		…
1464		2159
1465	=item $player_object->enter_link	2160	=item $player_object->enter_link
1466		2161
1467	Freezes the player and moves him/her to a special map (C<{link}>).	2162	Freezes the player and moves him/her to a special map (C<{link}>).
1468		2163
1469	The player should be reaosnably safe there for short amounts of time. You	2164	The player should be reasonably safe there for short amounts of time. You
1470	I<MUST> call C<leave_link> as soon as possible, though.	2165	I<MUST> call C<leave_link> as soon as possible, though.
1471		2166
		2167	Will never block.
		2168
1472	=item $player_object->leave_link ($map, $x, $y)	2169	=item $player_object->leave_link ($map, $x, $y)
1473		2170
1474	Moves the player out of the specila link map onto the given map. If the	2171	Moves the player out of the special C<{link}> map onto the specified
1475	map is not valid (or omitted), the player will be moved back to the	2172	map. If the map is not valid (or omitted), the player will be moved back
1476	location he/she was before the call to C<enter_link>, or, if that fails,	2173	to the location he/she was before the call to C<enter_link>, or, if that
1477	to the emergency map position.	2174	fails, to the emergency map position.
1478		2175
1479	Might block.	2176	Might block.
1480		2177
1481	=cut	2178	=cut
		2179
		2180	sub link_map {
		2181	unless ($LINK_MAP) {
		2182	$LINK_MAP = cf::map::find "{link}"
		2183	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2184	$LINK_MAP->load;
		2185	}
		2186
		2187	$LINK_MAP
		2188	}
1482		2189
1483	sub cf::object::player::enter_link {	2190	sub cf::object::player::enter_link {
1484	my ($self) = @_;	2191	my ($self) = @_;
1485		2192
1486	$self->deactivate_recursive;	2193	$self->deactivate_recursive;
1487		2194
1488	return if $self->map == $LINK_MAP;	2195	return if UNIVERSAL::isa $self->map, "ext::map_link";
1489		2196
1490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2197	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1491	if $self->map;	2198	if $self->map && $self->map->{path} ne "{link}";
1492		2199
1493	$self->enter_map ($LINK_MAP, 20, 20);	2200	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1494	}	2201	}
1495		2202
1496	sub cf::object::player::leave_link {	2203	sub cf::object::player::leave_link {
1497	my ($self, $map, $x, $y) = @_;	2204	my ($self, $map, $x, $y) = @_;
		2205
		2206	return unless $self->contr->active;
1498		2207
1499	my $link_pos = delete $self->{_link_pos};	2208	my $link_pos = delete $self->{_link_pos};
1500		2209
1501	unless ($map) {	2210	unless ($map) {
1502	# restore original map position	2211	# restore original map position
…		…
1516	# use -1 or undef as default coordinates, not 0, 0	2225	# use -1 or undef as default coordinates, not 0, 0
1517	($x, $y) = ($map->enter_x, $map->enter_y)	2226	($x, $y) = ($map->enter_x, $map->enter_y)
1518	if $x <=0 && $y <= 0;	2227	if $x <=0 && $y <= 0;
1519		2228
1520	$map->load;	2229	$map->load;
		2230	$map->load_diag;
1521		2231
		2232	return unless $self->contr->active;
1522	$self->activate_recursive;	2233	$self->activate_recursive;
		2234
		2235	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1523	$self->enter_map ($map, $x, $y);	2236	$self->enter_map ($map, $x, $y);
1524	}	2237	}
1525		2238
1526	cf::player->attach (
1527	on_logout => sub {
1528	my ($pl) = @_;
1529
1530	# abort map switching before logout
1531	if ($pl->ob->{_link_pos}) {
1532	cf::sync_job {
1533	$pl->ob->leave_link
1534	};
1535	}
1536	},
1537	on_login => sub {
1538	my ($pl) = @_;
1539
1540	# try to abort aborted map switching on player login :)
1541	# should happen only on crashes
1542	if ($pl->ob->{_link_pos}) {
1543	$pl->ob->enter_link;
1544	Coro::async_pool {
1545	# we need this sleep as the login has a concurrent enter_exit running
1546	# and this sleep increases chances of the player not ending up in scorn
1547	Coro::Timer::sleep 1;
1548	$pl->ob->leave_link;
1549	};
1550	}
1551	},
1552	);
1553
1554	=item $player_object->goto ($path, $x, $y)	2239	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1555		2240
		2241	Moves the player to the given map-path and coordinates by first freezing
		2242	her, loading and preparing them map, calling the provided $check callback
		2243	that has to return the map if sucecssful, and then unfreezes the player on
		2244	the new (success) or old (failed) map position.
		2245
1556	=cut	2246	=cut
		2247
		2248	our $GOTOGEN;
1557		2249
1558	sub cf::object::player::goto {	2250	sub cf::object::player::goto {
1559	my ($self, $path, $x, $y) = @_;	2251	my ($self, $path, $x, $y, $check) = @_;
		2252
		2253	# do generation counting so two concurrent goto's will be executed in-order
		2254	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1560		2255
1561	$self->enter_link;	2256	$self->enter_link;
1562		2257
1563	(Coro::async_pool {	2258	(async {
1564	$path = new cf::path $path;	2259	my $map = eval {
1565
1566	my $map = cf::map::find $path->as_string;	2260	my $map = cf::map::find $path;
		2261
		2262	if ($map) {
1567	$map = $map->customise_for ($self) if $map;	2263	$map = $map->customise_for ($self);
1568		2264	$map = $check->($map) if $check && $map;
1569	# warn "entering ", $map->path, " at ($x, $y)\n"	2265	} else {
1570	# if $map;
1571
1572	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2266	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2267	}
1573		2268
		2269	$map
		2270	};
		2271
		2272	if ($@) {
		2273	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2274	LOG llevError | logBacktrace, Carp::longmess $@;
		2275	}
		2276
		2277	if ($gen == $self->{_goto_generation}) {
		2278	delete $self->{_goto_generation};
1574	$self->leave_link ($map, $x, $y);	2279	$self->leave_link ($map, $x, $y);
		2280	}
1575	})->prio (1);	2281	})->prio (1);
1576	}	2282	}
1577		2283
1578	=item $player_object->enter_exit ($exit_object)	2284	=item $player_object->enter_exit ($exit_object)
1579		2285
…		…
1581		2287
1582	sub parse_random_map_params {	2288	sub parse_random_map_params {
1583	my ($spec) = @_;	2289	my ($spec) = @_;
1584		2290
1585	my $rmp = { # defaults	2291	my $rmp = { # defaults
1586	xsize => 10,	2292	xsize => (cf::rndm 15, 40),
1587	ysize => 10,	2293	ysize => (cf::rndm 15, 40),
		2294	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2295	#layout => string,
1588	};	2296	};
1589		2297
1590	for (split /\n/, $spec) {	2298	for (split /\n/, $spec) {
1591	my ($k, $v) = split /\s+/, $_, 2;	2299	my ($k, $v) = split /\s+/, $_, 2;
1592		2300
…		…
1596	$rmp	2304	$rmp
1597	}	2305	}
1598		2306
1599	sub prepare_random_map {	2307	sub prepare_random_map {
1600	my ($exit) = @_;	2308	my ($exit) = @_;
		2309
		2310	my $guard = cf::lock_acquire "exit_prepare:$exit";
1601		2311
1602	# all this does is basically replace the /! path by	2312	# all this does is basically replace the /! path by
1603	# a new random map path (?random/...) with a seed	2313	# a new random map path (?random/...) with a seed
1604	# that depends on the exit object	2314	# that depends on the exit object
1605		2315
1606	my $rmp = parse_random_map_params $exit->msg;	2316	my $rmp = parse_random_map_params $exit->msg;
1607		2317
1608	if ($exit->map) {	2318	if ($exit->map) {
1609	$rmp->{region} = $exit->map->region_name;	2319	$rmp->{region} = $exit->region->name;
1610	$rmp->{origin_map} = $exit->map->path;	2320	$rmp->{origin_map} = $exit->map->path;
1611	$rmp->{origin_x} = $exit->x;	2321	$rmp->{origin_x} = $exit->x;
1612	$rmp->{origin_y} = $exit->y;	2322	$rmp->{origin_y} = $exit->y;
1613	}	2323	}
1614		2324
1615	$rmp->{random_seed} ||= $exit->random_seed;	2325	$rmp->{random_seed} ||= $exit->random_seed;
1616		2326
1617	my $data = cf::to_json $rmp;	2327	my $data = cf::to_json $rmp;
1618	my $md5 = Digest::MD5::md5_hex $data;	2328	my $md5 = Digest::MD5::md5_hex $data;
		2329	my $meta = "$RANDOMDIR/$md5.meta";
1619		2330
1620	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2331	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1621	aio_write $fh, 0, (length $data), $data, 0;	2332	aio_write $fh, 0, (length $data), $data, 0;
		2333	undef $fh;
		2334	aio_rename "$meta~", $meta;
1622		2335
1623	$exit->slaying ("?random/$md5");	2336	$exit->slaying ("?random/$md5");
1624	$exit->msg (undef);	2337	$exit->msg (undef);
1625	}	2338	}
1626	}	2339	}
…		…
1628	sub cf::object::player::enter_exit {	2341	sub cf::object::player::enter_exit {
1629	my ($self, $exit) = @_;	2342	my ($self, $exit) = @_;
1630		2343
1631	return unless $self->type == cf::PLAYER;	2344	return unless $self->type == cf::PLAYER;
1632		2345
		2346	if ($exit->slaying eq "/!") {
		2347	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2348	# the problem is that $exit might not survive long enough
		2349	# so it needs to be done right now, right here
		2350	cf::sync_job { prepare_random_map $exit };
		2351	}
		2352
		2353	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2354	my $hp = $exit->stats->hp;
		2355	my $sp = $exit->stats->sp;
		2356
1633	$self->enter_link;	2357	$self->enter_link;
1634		2358
1635	(Coro::async_pool {	2359	(async {
1636	$self->deactivate_recursive; # just to be sure	2360	$self->deactivate_recursive; # just to be sure
1637	unless (eval {	2361	unless (eval {
1638	prepare_random_map $exit	2362	$self->goto ($slaying, $hp, $sp);
1639	if $exit->slaying eq "/!";
1640
1641	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1642	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1643		2363
1644	1;	2364	1;
1645	}) {	2365	}) {
1646	$self->message ("Something went wrong deep within the crossfire server. "	2366	$self->message ("Something went wrong deep within the crossfire server. "
1647	. "I'll try to bring you back to the map you were before. "	2367	. "I'll try to bring you back to the map you were before. "
1648	. "Please report this to the dungeon master",	2368	. "Please report this to the dungeon master!",
1649	cf::NDI_UNIQUE | cf::NDI_RED);	2369	cf::NDI_UNIQUE | cf::NDI_RED);
1650		2370
1651	warn "ERROR in enter_exit: $@";	2371	warn "ERROR in enter_exit: $@";
1652	$self->leave_link;	2372	$self->leave_link;
1653	}	2373	}
1654	})->prio (1);	2374	})->prio (1);
…		…
1667		2387
1668	sub cf::client::send_drawinfo {	2388	sub cf::client::send_drawinfo {
1669	my ($self, $text, $flags) = @_;	2389	my ($self, $text, $flags) = @_;
1670		2390
1671	utf8::encode $text;	2391	utf8::encode $text;
1672	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2392	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1673	}	2393	}
1674		2394
		2395	=item $client->send_msg ($color, $type, $msg, [extra...])
		2396
		2397	Send a drawinfo or msg packet to the client, formatting the msg for the
		2398	client if neccessary. C<$type> should be a string identifying the type of
		2399	the message, with C<log> being the default. If C<$color> is negative, suppress
		2400	the message unless the client supports the msg packet.
		2401
		2402	=cut
		2403
		2404	sub cf::client::send_msg {
		2405	my ($self, $color, $type, $msg, @extra) = @_;
		2406
		2407	$msg = $self->pl->expand_cfpod ($msg);
		2408
		2409	if ($self->can_msg) {
		2410	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2411	} else {
		2412	# replace some tags by gcfclient-compatible ones
		2413	for ($msg) {
		2414	1 while
		2415	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2416	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2417	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2418	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2419	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2420	}
		2421
		2422	if ($color >= 0) {
		2423	if (0 && $msg =~ /\[/) {
		2424	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2425	} else {
		2426	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2427	$self->send_packet ("drawinfo $color $msg")
		2428	}
		2429	}
		2430	}
		2431	}
		2432
		2433	=item $client->ext_event ($type, %msg)
		2434
		2435	Sends an ext event to the client.
		2436
		2437	=cut
		2438
		2439	sub cf::client::ext_event($$%) {
		2440	my ($self, $type, %msg) = @_;
		2441
		2442	$msg{msgtype} = "event_$type";
		2443	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2444	}
1675		2445
1676	=item $success = $client->query ($flags, "text", \&cb)	2446	=item $success = $client->query ($flags, "text", \&cb)
1677		2447
1678	Queues a query to the client, calling the given callback with	2448	Queues a query to the client, calling the given callback with
1679	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2449	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1680	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2450	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1681		2451
1682	Queries can fail, so check the return code. Or don't, as queries will become	2452	Queries can fail, so check the return code. Or don't, as queries will
1683	reliable at some point in the future.	2453	become reliable at some point in the future.
1684		2454
1685	=cut	2455	=cut
1686		2456
1687	sub cf::client::query {	2457	sub cf::client::query {
1688	my ($self, $flags, $text, $cb) = @_;	2458	my ($self, $flags, $text, $cb) = @_;
…		…
1696	utf8::encode $text;	2466	utf8::encode $text;
1697	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2467	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1698		2468
1699	$self->send_packet ($self->{query_queue}[0][0])	2469	$self->send_packet ($self->{query_queue}[0][0])
1700	if @{ $self->{query_queue} } == 1;	2470	if @{ $self->{query_queue} } == 1;
		2471
		2472	1
1701	}	2473	}
1702		2474
1703	cf::client->attach (	2475	cf::client->attach (
		2476	on_connect => sub {
		2477	my ($ns) = @_;
		2478
		2479	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2480	},
1704	on_reply => sub {	2481	on_reply => sub {
1705	my ($ns, $msg) = @_;	2482	my ($ns, $msg) = @_;
1706		2483
1707	# this weird shuffling is so that direct followup queries	2484	# this weird shuffling is so that direct followup queries
1708	# get handled first	2485	# get handled first
1709	my $queue = delete $ns->{query_queue}	2486	my $queue = delete $ns->{query_queue}
1710	or return; # be conservative, not sure how that can happen, but we saw a crash here	2487	or return; # be conservative, not sure how that can happen, but we saw a crash here
1711		2488
1712	(shift @$queue)->[1]->($msg);	2489	(shift @$queue)->[1]->($msg);
		2490	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1713		2491
1714	push @{ $ns->{query_queue} }, @$queue;	2492	push @{ $ns->{query_queue} }, @$queue;
1715		2493
1716	if (@{ $ns->{query_queue} } == @$queue) {	2494	if (@{ $ns->{query_queue} } == @$queue) {
1717	if (@$queue) {	2495	if (@$queue) {
…		…
1719	} else {	2497	} else {
1720	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2498	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1721	}	2499	}
1722	}	2500	}
1723	},	2501	},
		2502	on_exticmd => sub {
		2503	my ($ns, $buf) = @_;
		2504
		2505	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2506
		2507	if (ref $msg) {
		2508	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2509	if (my %reply = $cb->($ns, $msg)) {
		2510	$reply{msgid} = $msg->{msgid};
		2511	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2512	}
		2513	}
		2514	} else {
		2515	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2516	}
		2517
		2518	cf::override;
		2519	},
1724	);	2520	);
1725		2521
1726	=item $client->coro (\&cb)	2522	=item $client->async (\&cb)
1727		2523
1728	Create a new coroutine, running the specified callback. The coroutine will	2524	Create a new coroutine, running the specified callback. The coroutine will
1729	be automatically cancelled when the client gets destroyed (e.g. on logout,	2525	be automatically cancelled when the client gets destroyed (e.g. on logout,
1730	or loss of connection).	2526	or loss of connection).
1731		2527
1732	=cut	2528	=cut
1733		2529
1734	sub cf::client::coro {	2530	sub cf::client::async {
1735	my ($self, $cb) = @_;	2531	my ($self, $cb) = @_;
1736		2532
1737	my $coro = &Coro::async_pool ($cb);	2533	my $coro = &Coro::async ($cb);
1738		2534
1739	$coro->on_destroy (sub {	2535	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	2536	delete $self->{_coro}{$coro+0};
1741	});	2537	});
1742		2538
…		…
1775		2571
1776	# here we export the classes and methods available to script code	2572	# here we export the classes and methods available to script code
1777		2573
1778	=pod	2574	=pod
1779		2575
1780	The following fucntions and emthods are available within a safe environment:	2576	The following functions and methods are available within a safe environment:
1781		2577
1782	cf::object contr pay_amount pay_player map	2578	cf::object contr pay_amount pay_player map
1783	cf::object::player player	2579	cf::object::player player
1784	cf::player peaceful	2580	cf::player peaceful
1785	cf::map trigger	2581	cf::map trigger
…		…
1866	=back	2662	=back
1867		2663
1868	=cut	2664	=cut
1869		2665
1870	#############################################################################	2666	#############################################################################
		2667	# the server's init and main functions
1871		2668
1872	=head2 EXTENSION DATABASE SUPPORT	2669	sub load_facedata($) {
		2670	my ($path) = @_;
1873		2671
1874	Crossfire maintains a very simple database for extension use. It can	2672	warn "loading facedata from $path\n";
1875	currently store anything that can be serialised using Storable, which
1876	excludes objects.
1877		2673
1878	The parameter C<$family> should best start with the name of the extension	2674	my $facedata;
1879	using it, it should be unique.	2675	0 < aio_load $path, $facedata
		2676	or die "$path: $!";
1880		2677
1881	=over 4	2678	$facedata = Coro::Storable::thaw $facedata;
1882		2679
1883	=item $hashref = cf::db_get $family	2680	$facedata->{version} == 2
		2681	or cf::cleanup "$path: version mismatch, cannot proceed.";
1884		2682
1885	Return a hashref for use by the extension C<$family>, which can be
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888
1889	=item $value = cf::db_get $family => $key
1890
1891	Returns a single value from the database
1892
1893	=item cf::db_put $family => $hashref
1894
1895	Stores the given family hashref into the database. Updates are delayed, if
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1897
1898	=item cf::db_put $family => $key => $value
1899
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910
1911	=cut
1912
1913	our $DB;
1914
1915	{
1916	my $path = cf::localdir . "/database.pst";
1917
1918	sub db_load() {
1919	$DB = stat $path ? Storable::retrieve $path : { };
1920	}	2683	{
		2684	my $faces = $facedata->{faceinfo};
1921		2685
1922	my $pid;	2686	while (my ($face, $info) = each %$faces) {
1923		2687	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1924	sub db_save() {	2688	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1925	waitpid $pid, 0 if $pid;	2689	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1926	if (0 == ($pid = fork)) {	2690	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1927	$DB->{_meta}{version} = 1;	2691	Coro::cede;
1928	Storable::nstore $DB, "$path~";
1929	rename "$path~", $path;
1930	cf::_exit 0 if defined $pid;
1931	}
1932	}
1933
1934	my $dirty;
1935
1936	sub db_sync() {
1937	db_save if $dirty;
1938	undef $dirty;
1939	}
1940
1941	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1942	db_sync;
1943	});
1944
1945	sub db_dirty() {
1946	$dirty = 1;
1947	$idle->start;
1948	}
1949
1950	sub db_get($;$) {
1951	@_ >= 2
1952	? $DB->{$_[0]}{$_[1]}
1953	: ($DB->{$_[0]} ||= { })
1954	}
1955
1956	sub db_put($$;$) {
1957	if (@_ >= 3) {
1958	$DB->{$_[0]}{$_[1]} = $_[2];
1959	} else {
1960	$DB->{$_[0]} = $_[1];
1961	}
1962	db_dirty;
1963	}
1964
1965	cf::global->attach (
1966	prio => 10000,
1967	on_cleanup => sub {
1968	db_sync;
1969	},	2692	}
1970	);
1971	}
1972		2693
1973	#############################################################################	2694	while (my ($face, $info) = each %$faces) {
1974	# the server's main()	2695	next unless $info->{smooth};
		2696	my $idx = cf::face::find $face
		2697	or next;
		2698	if (my $smooth = cf::face::find $info->{smooth}) {
		2699	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2700	} else {
		2701	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2702	}
		2703	Coro::cede;
		2704	}
		2705	}
		2706
		2707	{
		2708	my $anims = $facedata->{animinfo};
		2709
		2710	while (my ($anim, $info) = each %$anims) {
		2711	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2712	Coro::cede;
		2713	}
		2714
		2715	cf::anim::invalidate_all; # d'oh
		2716	}
		2717
		2718	1
		2719	}
		2720
		2721	sub reload_regions {
		2722	load_resource_file "$MAPDIR/regions"
		2723	or die "unable to load regions file\n";
		2724	}
		2725
		2726	sub reload_facedata {
		2727	load_facedata "$DATADIR/facedata"
		2728	or die "unable to load facedata\n";
		2729	}
		2730
		2731	sub reload_archetypes {
		2732	load_resource_file "$DATADIR/archetypes"
		2733	or die "unable to load archetypes\n";
		2734	#d# NEED to laod twice to resolve forward references
		2735	# this really needs to be done in an extra post-pass
		2736	# (which needs to be synchronous, so solve it differently)
		2737	load_resource_file "$DATADIR/archetypes"
		2738	or die "unable to load archetypes\n";
		2739	}
		2740
		2741	sub reload_treasures {
		2742	load_resource_file "$DATADIR/treasures"
		2743	or die "unable to load treasurelists\n";
		2744	}
		2745
		2746	sub reload_resources {
		2747	warn "reloading resource files...\n";
		2748
		2749	reload_regions;
		2750	reload_facedata;
		2751	#reload_archetypes;#d#
		2752	reload_archetypes;
		2753	reload_treasures;
		2754
		2755	warn "finished reloading resource files\n";
		2756	}
		2757
		2758	sub init {
		2759	reload_resources;
		2760	}
1975		2761
1976	sub cfg_load {	2762	sub cfg_load {
1977	open my $fh, "<:utf8", cf::confdir . "/config"	2763	open my $fh, "<:utf8", "$CONFDIR/config"
1978	or return;	2764	or return;
1979		2765
1980	local $/;	2766	local $/;
1981	*CFG = YAML::Syck::Load <$fh>;	2767	*CFG = YAML::Syck::Load <$fh>;
1982		2768
1983	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2769	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1984		2770
		2771	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2772	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2773
1985	if (exists $CFG{mlockall}) {	2774	if (exists $CFG{mlockall}) {
1986	eval {	2775	eval {
1987	$CFG{mlockall} ? &mlockall : &munlockall	2776	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1988	and die "WARNING: m(un)lockall failed: $!\n";	2777	and die "WARNING: m(un)lockall failed: $!\n";
1989	};	2778	};
1990	warn $@ if $@;	2779	warn $@ if $@;
1991	}	2780	}
1992	}	2781	}
1993		2782
1994	sub main {	2783	sub main {
1995	# we must not ever block the main coroutine	2784	# we must not ever block the main coroutine
1996	local $Coro::idle = sub {	2785	local $Coro::idle = sub {
1997	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2786	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1998	(Coro::unblock_sub {	2787	(async {
1999	Event::one_event;	2788	Event::one_event;
2000	})->();	2789	})->prio (Coro::PRIO_MAX);
2001	};	2790	};
2002		2791
2003	cfg_load;	2792	cfg_load;
2004	db_load;	2793	db_init;
2005	load_extensions;	2794	load_extensions;
		2795
		2796	$TICK_WATCHER->start;
2006	Event::loop;	2797	Event::loop;
2007	}	2798	}
2008		2799
2009	#############################################################################	2800	#############################################################################
2010	# initialisation	2801	# initialisation and cleanup
2011		2802
		2803	# install some emergency cleanup handlers
		2804	BEGIN {
		2805	for my $signal (qw(INT HUP TERM)) {
		2806	Event->signal (
		2807	reentrant => 0,
		2808	data => WF_AUTOCANCEL,
		2809	signal => $signal,
		2810	prio => 0,
		2811	cb => sub {
		2812	cf::cleanup "SIG$signal";
		2813	},
		2814	);
		2815	}
		2816	}
		2817
		2818	sub write_runtime {
		2819	my $runtime = "$LOCALDIR/runtime";
		2820
		2821	# first touch the runtime file to show we are still running:
		2822	# the fsync below can take a very very long time.
		2823
		2824	IO::AIO::aio_utime $runtime, undef, undef;
		2825
		2826	my $guard = cf::lock_acquire "write_runtime";
		2827
		2828	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2829	or return;
		2830
		2831	my $value = $cf::RUNTIME + 90 + 10;
		2832	# 10 is the runtime save interval, for a monotonic clock
		2833	# 60 allows for the watchdog to kill the server.
		2834
		2835	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2836	and return;
		2837
		2838	# always fsync - this file is important
		2839	aio_fsync $fh
		2840	and return;
		2841
		2842	# touch it again to show we are up-to-date
		2843	aio_utime $fh, undef, undef;
		2844
		2845	close $fh
		2846	or return;
		2847
		2848	aio_rename "$runtime~", $runtime
		2849	and return;
		2850
		2851	warn "runtime file written.\n";
		2852
		2853	1
		2854	}
		2855
		2856	sub emergency_save() {
		2857	my $freeze_guard = cf::freeze_mainloop;
		2858
		2859	warn "enter emergency perl save\n";
		2860
		2861	cf::sync_job {
		2862	# use a peculiar iteration method to avoid tripping on perl
		2863	# refcount bugs in for. also avoids problems with players
		2864	# and maps saved/destroyed asynchronously.
		2865	warn "begin emergency player save\n";
		2866	for my $login (keys %cf::PLAYER) {
		2867	my $pl = $cf::PLAYER{$login} or next;
		2868	$pl->valid or next;
		2869	$pl->save;
		2870	}
		2871	warn "end emergency player save\n";
		2872
		2873	warn "begin emergency map save\n";
		2874	for my $path (keys %cf::MAP) {
		2875	my $map = $cf::MAP{$path} or next;
		2876	$map->valid or next;
		2877	$map->save;
		2878	}
		2879	warn "end emergency map save\n";
		2880
		2881	warn "begin emergency database checkpoint\n";
		2882	BDB::db_env_txn_checkpoint $DB_ENV;
		2883	warn "end emergency database checkpoint\n";
		2884	};
		2885
		2886	warn "leave emergency perl save\n";
		2887	}
		2888
		2889	sub post_cleanup {
		2890	my ($make_core) = @_;
		2891
		2892	warn Carp::longmess "post_cleanup backtrace"
		2893	if $make_core;
		2894	}
		2895
2012	sub reload() {	2896	sub do_reload_perl() {
2013	# can/must only be called in main	2897	# can/must only be called in main
2014	if ($Coro::current != $Coro::main) {	2898	if ($Coro::current != $Coro::main) {
2015	warn "can only reload from main coroutine\n";	2899	warn "can only reload from main coroutine";
2016	return;	2900	return;
2017	}	2901	}
2018		2902
2019	warn "reloading...";	2903	warn "reloading...";
2020		2904
2021	my $guard = freeze_mainloop;	2905	warn "entering sync_job";
		2906
		2907	cf::sync_job {
		2908	cf::write_runtime; # external watchdog should not bark
2022	cf::emergency_save;	2909	cf::emergency_save;
		2910	cf::write_runtime; # external watchdog should not bark
2023		2911
2024	eval {	2912	warn "syncing database to disk";
		2913	BDB::db_env_txn_checkpoint $DB_ENV;
		2914
2025	# if anything goes wrong in here, we should simply crash as we already saved	2915	# if anything goes wrong in here, we should simply crash as we already saved
2026		2916
2027	# cancel all watchers	2917	warn "cancelling all WF_AUTOCANCEL watchers";
2028	for (Event::all_watchers) {	2918	for (Event::all_watchers) {
2029	$_->cancel if $_->data & WF_AUTOCANCEL;	2919	$_->cancel if $_->data & WF_AUTOCANCEL;
2030	}	2920	}
2031		2921
		2922	warn "flushing outstanding aio requests";
		2923	for (;;) {
		2924	BDB::flush;
		2925	IO::AIO::flush;
		2926	Coro::cede;
		2927	last unless IO::AIO::nreqs || BDB::nreqs;
		2928	warn "iterate...";
		2929	}
		2930
		2931	++$RELOAD;
		2932
2032	# cancel all extension coros	2933	warn "cancelling all extension coros";
2033	$_->cancel for values %EXT_CORO;	2934	$_->cancel for values %EXT_CORO;
2034	%EXT_CORO = ();	2935	%EXT_CORO = ();
2035		2936
2036	# unload all extensions	2937	warn "removing commands";
2037	for (@exts) {	2938	%COMMAND = ();
		2939
		2940	warn "removing ext/exti commands";
		2941	%EXTCMD = ();
		2942	%EXTICMD = ();
		2943
		2944	warn "unloading/nuking all extensions";
		2945	for my $pkg (@EXTS) {
2038	warn "unloading <$_>";	2946	warn "... unloading $pkg";
2039	unload_extension $_;	2947
		2948	if (my $cb = $pkg->can ("unload")) {
		2949	eval {
		2950	$cb->($pkg);
		2951	1
		2952	} or warn "$pkg unloaded, but with errors: $@";
2040	}	2953	}
2041		2954
		2955	warn "... nuking $pkg";
		2956	Symbol::delete_package $pkg;
		2957	}
		2958
2042	# unload all modules loaded from $LIBDIR	2959	warn "unloading all perl modules loaded from $LIBDIR";
2043	while (my ($k, $v) = each %INC) {	2960	while (my ($k, $v) = each %INC) {
2044	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2961	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2045		2962
2046	warn "removing <$k>";	2963	warn "... unloading $k";
2047	delete $INC{$k};	2964	delete $INC{$k};
2048		2965
2049	$k =~ s/\.pm$//;	2966	$k =~ s/\.pm$//;
2050	$k =~ s/\//::/g;	2967	$k =~ s/\//::/g;
2051		2968
…		…
2054	}	2971	}
2055		2972
2056	Symbol::delete_package $k;	2973	Symbol::delete_package $k;
2057	}	2974	}
2058		2975
2059	# sync database to disk
2060	cf::db_sync;
2061	IO::AIO::flush;
2062
2063	# get rid of safe::, as good as possible	2976	warn "getting rid of safe::, as good as possible";
2064	Symbol::delete_package "safe::$_"	2977	Symbol::delete_package "safe::$_"
2065	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2978	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2066		2979
2067	# remove register_script_function callbacks
2068	# TODO
2069
2070	# unload cf.pm "a bit"	2980	warn "unloading cf.pm \"a bit\"";
2071	delete $INC{"cf.pm"};	2981	delete $INC{"cf.pm"};
		2982	delete $INC{"cf/pod.pm"};
2072		2983
2073	# don't, removes xs symbols, too,	2984	# don't, removes xs symbols, too,
2074	# and global variables created in xs	2985	# and global variables created in xs
2075	#Symbol::delete_package __PACKAGE__;	2986	#Symbol::delete_package __PACKAGE__;
2076		2987
2077	# reload cf.pm	2988	warn "unload completed, starting to reload now";
		2989
2078	warn "reloading cf.pm";	2990	warn "reloading cf.pm";
2079	require cf;	2991	require cf;
2080	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2992	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2081		2993
2082	# load config and database again	2994	warn "loading config and database again";
2083	cf::cfg_load;	2995	cf::cfg_load;
2084	cf::db_load;
2085		2996
2086	# load extensions
2087	warn "load extensions";	2997	warn "loading extensions";
2088	cf::load_extensions;	2998	cf::load_extensions;
2089		2999
2090	# reattach attachments to objects	3000	warn "reattaching attachments to objects/players";
2091	warn "reattach";	3001	_global_reattach; # objects, sockets
2092	_global_reattach;	3002	warn "reattaching attachments to maps";
2093	};	3003	reattach $_ for values %MAP;
		3004	warn "reattaching attachments to players";
		3005	reattach $_ for values %PLAYER;
2094		3006
2095	if ($@) {	3007	warn "leaving sync_job";
		3008
		3009	1
		3010	} or do {
2096	warn $@;	3011	warn $@;
2097	warn "error while reloading, exiting.";	3012	warn "error while reloading, exiting.";
2098	exit 1;	3013	exit 1;
2099	}	3014	};
2100		3015
2101	warn "reloaded successfully";	3016	warn "reloaded";
2102	};	3017	};
2103		3018
2104	#############################################################################	3019	our $RELOAD_WATCHER; # used only during reload
2105		3020
2106	unless ($LINK_MAP) {	3021	sub reload_perl() {
2107	$LINK_MAP = cf::map::new;	3022	# doing reload synchronously and two reloads happen back-to-back,
		3023	# coro crashes during coro_state_free->destroy here.
2108		3024
2109	$LINK_MAP->width (41);	3025	$RELOAD_WATCHER ||= Event->timer (
2110	$LINK_MAP->height (41);	3026	reentrant => 0,
2111	$LINK_MAP->alloc;
2112	$LINK_MAP->path ("{link}");
2113	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2114	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2115
2116	# dirty hack because... archetypes are not yet loaded
2117	Event->timer (
2118	after => 2,	3027	after => 0,
		3028	data => WF_AUTOCANCEL,
2119	cb => sub {	3029	cb => sub {
2120	$_[0]->w->cancel;	3030	do_reload_perl;
2121		3031	undef $RELOAD_WATCHER;
2122	# provide some exits "home"
2123	my $exit = cf::object::new "exit";
2124
2125	$exit->slaying ($EMERGENCY_POSITION->[0]);
2126	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2127	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2128
2129	$LINK_MAP->insert ($exit->clone, 19, 19);
2130	$LINK_MAP->insert ($exit->clone, 19, 20);
2131	$LINK_MAP->insert ($exit->clone, 19, 21);
2132	$LINK_MAP->insert ($exit->clone, 20, 19);
2133	$LINK_MAP->insert ($exit->clone, 20, 21);
2134	$LINK_MAP->insert ($exit->clone, 21, 19);
2135	$LINK_MAP->insert ($exit->clone, 21, 20);
2136	$LINK_MAP->insert ($exit->clone, 21, 21);
2137
2138	$exit->destroy;
2139	});	3032	},
2140		3033	);
2141	$LINK_MAP->{deny_save} = 1;
2142	$LINK_MAP->{deny_reset} = 1;
2143
2144	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2145	}	3034	}
2146
2147	register "<global>", __PACKAGE__;
2148		3035
2149	register_command "reload" => sub {	3036	register_command "reload" => sub {
2150	my ($who, $arg) = @_;	3037	my ($who, $arg) = @_;
2151		3038
2152	if ($who->flag (FLAG_WIZ)) {	3039	if ($who->flag (FLAG_WIZ)) {
2153	$who->message ("start of reload.");
2154	reload;
2155	$who->message ("end of reload.");	3040	$who->message ("reloading server.");
		3041	async { reload_perl };
2156	}	3042	}
2157	};	3043	};
2158		3044
2159	unshift @INC, $LIBDIR;	3045	unshift @INC, $LIBDIR;
2160		3046
		3047	my $bug_warning = 0;
		3048
		3049	our @WAIT_FOR_TICK;
		3050	our @WAIT_FOR_TICK_BEGIN;
		3051
		3052	sub wait_for_tick {
		3053	return unless $TICK_WATCHER->is_active;
		3054	return if $Coro::current == $Coro::main;
		3055
		3056	my $signal = new Coro::Signal;
		3057	push @WAIT_FOR_TICK, $signal;
		3058	$signal->wait;
		3059	}
		3060
		3061	sub wait_for_tick_begin {
		3062	return unless $TICK_WATCHER->is_active;
		3063	return if $Coro::current == $Coro::main;
		3064
		3065	my $signal = new Coro::Signal;
		3066	push @WAIT_FOR_TICK_BEGIN, $signal;
		3067	$signal->wait;
		3068	}
		3069
		3070	my $min = 1e6;#d#
		3071	my $avg = 10;
2161	$TICK_WATCHER = Event->timer (	3072	$TICK_WATCHER = Event->timer (
2162	reentrant => 0,	3073	reentrant => 0,
		3074	parked => 1,
2163	prio => 0,	3075	prio => 0,
2164	at => $NEXT_TICK || $TICK,	3076	at => $NEXT_TICK || $TICK,
2165	data => WF_AUTOCANCEL,	3077	data => WF_AUTOCANCEL,
2166	cb => sub {	3078	cb => sub {
		3079	if ($Coro::current != $Coro::main) {
		3080	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3081	unless ++$bug_warning > 10;
		3082	return;
		3083	}
		3084
		3085	$NOW = $tick_start = Event::time;
		3086
2167	cf::server_tick; # one server iteration	3087	cf::server_tick; # one server iteration
		3088
		3089	0 && sync_job {#d#
		3090	for(1..10) {
		3091	my $t = Event::time;
		3092	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3093	or die;
		3094
		3095	$map->width (50);
		3096	$map->height (50);
		3097	$map->alloc;
		3098	$map->_load_objects ("/tmp/x.map", 1);
		3099	my $t = Event::time - $t;
		3100
		3101	#next unless $t < 0.0013;#d#
		3102	if ($t < $min) {
		3103	$min = $t;
		3104	}
		3105	$avg = $avg * 0.99 + $t * 0.01;
		3106	}
		3107	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3108	exit 0;
		3109	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3110	};
		3111
2168	$RUNTIME += $TICK;	3112	$RUNTIME += $TICK;
2169	$NEXT_TICK += $TICK;	3113	$NEXT_TICK += $TICK;
2170		3114
		3115	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3116	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3117	Coro::async_pool {
		3118	write_runtime
		3119	or warn "ERROR: unable to write runtime file: $!";
		3120	};
		3121	}
		3122
		3123	# my $AFTER = Event::time;
		3124	# warn $AFTER - $NOW;#d#
		3125
		3126	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3127	$sig->send;
		3128	}
		3129	while (my $sig = shift @WAIT_FOR_TICK) {
		3130	$sig->send;
		3131	}
		3132
		3133	$NOW = Event::time;
		3134
2171	# if we are delayed by four ticks or more, skip them all	3135	# if we are delayed by four ticks or more, skip them all
2172	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3136	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2173		3137
2174	$TICK_WATCHER->at ($NEXT_TICK);	3138	$TICK_WATCHER->at ($NEXT_TICK);
2175	$TICK_WATCHER->start;	3139	$TICK_WATCHER->start;
		3140
		3141	$LOAD = ($NOW - $tick_start) / $TICK;
		3142	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3143
		3144	_post_tick;
		3145
		3146
2176	},	3147	},
2177	);	3148	);
2178		3149
		3150	{
2179	IO::AIO::max_poll_time $TICK * 0.2;	3151	BDB::max_poll_time $TICK * 0.1;
2180		3152	$BDB_POLL_WATCHER = Event->io (
2181	Event->io (	3153	reentrant => 0,
2182	fd => IO::AIO::poll_fileno,	3154	fd => BDB::poll_fileno,
2183	poll => 'r',	3155	poll => 'r',
2184	prio => 5,	3156	prio => 0,
2185	data => WF_AUTOCANCEL,
2186	cb => \&IO::AIO::poll_cb,
2187	);
2188
2189	Event->timer (
2190	data => WF_AUTOCANCEL,	3157	data => WF_AUTOCANCEL,
2191	after => 0,	3158	cb => \&BDB::poll_cb,
2192	interval => 10,	3159	);
2193	cb => sub {	3160	BDB::min_parallel 8;
2194	(Coro::unblock_sub {	3161
2195	write_runtime	3162	BDB::set_sync_prepare {
2196	or warn "ERROR: unable to write runtime file: $!";	3163	my $status;
		3164	my $current = $Coro::current;
		3165	(
		3166	sub {
		3167	$status = $!;
		3168	$current->ready; undef $current;
		3169	},
		3170	sub {
		3171	Coro::schedule while defined $current;
		3172	$! = $status;
		3173	},
		3174	)
		3175	};
		3176
		3177	unless ($DB_ENV) {
		3178	$DB_ENV = BDB::db_env_create;
		3179
		3180	cf::sync_job {
		3181	eval {
		3182	BDB::db_env_open
		3183	$DB_ENV,
		3184	$BDBDIR,
		3185	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3186	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3187	0666;
		3188
		3189	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3190
		3191	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3192	$DB_ENV->set_lk_detect;
		3193	};
		3194
		3195	cf::cleanup "db_env_open(db): $@" if $@;
2197	})->();	3196	};
2198	},	3197	}
2199	);	3198	}
		3199
		3200	{
		3201	IO::AIO::min_parallel 8;
		3202
		3203	undef $Coro::AIO::WATCHER;
		3204	IO::AIO::max_poll_time $TICK * 0.1;
		3205	$AIO_POLL_WATCHER = Event->io (
		3206	reentrant => 0,
		3207	data => WF_AUTOCANCEL,
		3208	fd => IO::AIO::poll_fileno,
		3209	poll => 'r',
		3210	prio => 6,
		3211	cb => \&IO::AIO::poll_cb,
		3212	);
		3213	}
		3214
		3215	my $_log_backtrace;
		3216
		3217	sub _log_backtrace {
		3218	my ($msg, @addr) = @_;
		3219
		3220	$msg =~ s/\n//;
		3221
		3222	# limit the # of concurrent backtraces
		3223	if ($_log_backtrace < 2) {
		3224	++$_log_backtrace;
		3225	async {
		3226	my @bt = fork_call {
		3227	@addr = map { sprintf "%x", $_ } @addr;
		3228	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3229	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3230	or die "addr2line: $!";
		3231
		3232	my @funcs;
		3233	my @res = <$fh>;
		3234	chomp for @res;
		3235	while (@res) {
		3236	my ($func, $line) = splice @res, 0, 2, ();
		3237	push @funcs, "[$func] $line";
		3238	}
		3239
		3240	@funcs
		3241	};
		3242
		3243	LOG llevInfo, "[ABT] $msg\n";
		3244	LOG llevInfo, "[ABT] $_\n" for @bt;
		3245	--$_log_backtrace;
		3246	};
		3247	} else {
		3248	LOG llevInfo, "[ABT] $msg\n";
		3249	LOG llevInfo, "[ABT] [suppressed]\n";
		3250	}
		3251	}
		3252
		3253	# load additional modules
		3254	use cf::pod;
2200		3255
2201	END { cf::emergency_save }	3256	END { cf::emergency_save }
2202		3257
2203	1	3258	1
2204		3259

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