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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.139 by root, Fri Jan 5 19:12:03 2007 UTC vs.
Revision 1.288 by root, Mon Jun 25 07:40:53 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 (Coro::PRIO_MAX); # 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->convert_blessed->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	unless (Coro::cede) {	367	Coro::cede or Event::one_event;
269	Coro::nready ? Event::one_event 0 : Event::one_event;
270	Coro::cede_notself unless Coro::cede;
271	}	368	}
272	}	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
273		376
274	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
275	} else {	378	} else {
276	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
277		380
278	$job->()	381	$job->()
279	}	382	}
280	}	383	}
281		384
282	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
283		386
284	Creates (and readies) and returns a new coro. This coro is automcatially	387	Like async, but this coro is automatically being canceled when the
285	being canceled when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
286		389
287	=cut	390	=cut
288		391
289	sub coro(&) {	392	sub async_ext(&) {
290	my $cb = shift;	393	my $cb = shift;
291		394
292	my $coro = &Coro::async_pool ($cb);	395	my $coro = &Coro::async ($cb);
293		396
294	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
295	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
296	});	399	});
297	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
298		401
299	$coro	402	$coro
300	}	403	}
301		404
302	sub write_runtime {	405	=item fork_call { }, $args
303	my $runtime = cf::localdir . "/runtime";
304		406
305	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
306	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.
307		411
308	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
309	(aio_write $fh, 0, (length $value), $value, 0) <= 0
310	and return;
311		413
312	aio_fsync $fh	414	sub fork_call(&@) {
313	and return;	415	my ($cb, @args) = @_;
314		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) {
315	close $fh	423	close $fh2;
316	or return;
317		424
318	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
319	and return;	426	$res = Coro::Storable::thaw $res;
320		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
321	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		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 });
322	}	574	}
323		575
324	=back	576	=back
325		577
326	=cut	578	=cut
327
328	#############################################################################
329
330	package cf::path;
331
332	sub new {
333	my ($class, $path, $base) = @_;
334
335	$path = $path->as_string if ref $path;
336
337	my $self = bless { }, $class;
338
339	# {... are special paths that are not touched
340	# ?xxx/... are special absolute paths
341	# ?random/... random maps
342	# /! non-realised random map exit
343	# /... normal maps
344	# ~/... per-player maps without a specific player (DO NOT USE)
345	# ~user/... per-player map of a specific user
346
347	if ($path =~ /^{/) {
348	# fine as it is
349	} elsif ($path =~ s{^\?random/}{}) {
350	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
351	$self->{random} = cf::from_json $data;
352	} else {
353	if ($path =~ s{^~([^/]+)?}{}) {
354	$self->{user_rel} = 1;
355
356	if (defined $1) {
357	$self->{user} = $1;
358	} elsif ($base =~ m{^~([^/]+)/}) {
359	$self->{user} = $1;
360	} else {
361	warn "cannot resolve user-relative path without user <$path,$base>\n";
362	}
363	} elsif ($path =~ /^\//) {
364	# already absolute
365	} else {
366	$base =~ s{[^/]+/?$}{};
367	return $class->new ("$base/$path");
368	}
369
370	for ($path) {
371	redo if s{/\.?/}{/};
372	redo if s{/[^/]+/\.\./}{/};
373	}
374	}
375
376	$self->{path} = $path;
377
378	$self
379	}
380
381	# the name / primary key / in-game path
382	sub as_string {
383	my ($self) = @_;
384
385	$self->{user_rel} ? "~$self->{user}$self->{path}"
386	: $self->{random} ? "?random/$self->{path}"
387	: $self->{path}
388	}
389
390	# the displayed name, this is a one way mapping
391	sub visible_name {
392	my ($self) = @_;
393
394	# if (my $rmp = $self->{random}) {
395	# # todo: be more intelligent about this
396	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
397	# } else {
398	$self->as_string
399	# }
400	}
401
402	# escape the /'s in the path
403	sub _escaped_path {
404	# ∕ is U+2215
405	(my $path = $_[0]{path}) =~ s/\//∕/g;
406	$path
407	}
408
409	# the original (read-only) location
410	sub load_path {
411	my ($self) = @_;
412
413	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
414	}
415
416	# the temporary/swap location
417	sub save_path {
418	my ($self) = @_;
419
420	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
421	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
422	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
423	}
424
425	# the unique path, might be eq to save_path
426	sub uniq_path {
427	my ($self) = @_;
428
429	$self->{user_rel} || $self->{random}
430	? undef
431	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
432	}
433
434	# return random map parameters, or undef
435	sub random_map_params {
436	my ($self) = @_;
437
438	$self->{random}
439	}
440
441	# this is somewhat ugly, but style maps do need special treatment
442	sub is_style_map {
443	$_[0]{path} =~ m{^/styles/}
444	}
445
446	package cf;
447		579
448	#############################################################################	580	#############################################################################
449		581
450	=head2 ATTACHABLE OBJECTS	582	=head2 ATTACHABLE OBJECTS
451		583
…		…
453	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")
454	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
455		587
456	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>
457	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
458	crossfire+).	590	Crossfire TRT).
459		591
460	=over 4	592	=over 4
461		593
462	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
463		595
…		…
577	our @CB_TYPE = (); # registry for type (cf-object class) based events	709	our @CB_TYPE = (); # registry for type (cf-object class) based events
578	our @CB_MAP = ();	710	our @CB_MAP = ();
579		711
580	my %attachment;	712	my %attachment;
581		713
		714	sub cf::attachable::thawer_merge {
		715	# simply override everything except _meta
		716	local $_[0]{_meta};
		717	%{$_[0]} = %{$_[1]};
		718	}
		719
582	sub _attach_cb($$$$) {	720	sub _attach_cb($$$$) {
583	my ($registry, $event, $prio, $cb) = @_;	721	my ($registry, $event, $prio, $cb) = @_;
584		722
585	use sort 'stable';	723	use sort 'stable';
586		724
…		…
620	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
621		759
622	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
623	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
624	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
625	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
626		764
627	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
628	my $pkg = shift @arg;	766	my $pkg = shift @arg;
629		767
630	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
659	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
660	}	798	}
661		799
662	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
663	} else {	801	} else {
664	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
665	}	803	}
666		804
667	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
668	}	806	}
669		807
…		…
671	if (ref $_[0]) {	809	if (ref $_[0]) {
672	_object_attach @_;	810	_object_attach @_;
673	} else {	811	} else {
674	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
675	}	813	}
		814	_recalc_want;
676	};	815	};
677		816
678	# all those should be optimised	817	# all those should be optimised
679	sub cf::attachable::detach {	818	sub cf::attachable::detach {
680	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
683	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
684	reattach ($obj);	823	reattach ($obj);
685	} else {	824	} else {
686	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
687	}	826	}
		827	_recalc_want;
688	};	828	};
689		829
690	sub cf::attachable::attached {	830	sub cf::attachable::attached {
691	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
692		832
…		…
757	# object support	897	# object support
758		898
759	sub reattach {	899	sub reattach {
760	# basically do the same as instantiate, without calling instantiate	900	# basically do the same as instantiate, without calling instantiate
761	my ($obj) = @_;	901	my ($obj) = @_;
		902
		903	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
762		904
763	my $registry = $obj->registry;	905	my $registry = $obj->registry;
764		906
765	@$registry = ();	907	@$registry = ();
766		908
…		…
813	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
814		956
815	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
816	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
817	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
818	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
819	close $fh;	961	close $fh;
820		962
821	if (@$objs) {	963	if (@$objs) {
822	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) {
823	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
824	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
825	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
826	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	969	close $fh;
828	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
829	}	971	}
830	} else {	972	} else {
831	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
863	or return;	1005	or return;
864	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
865	}	1007	}
866		1008
867	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
868	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
869	return ($data, $av);	1011	return ($data, $av);
870	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
871		1019
872	#############################################################################	1020	#############################################################################
873	# command handling &c	1021	# command handling &c
874		1022
875	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
888	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
889	}	1037	}
890		1038
891	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
892		1040
893	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.
894		1046
895	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
896	called.	1048	called.
897		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
898	=cut	1061	=cut
899		1062
900	sub register_extcmd {	1063	sub register_extcmd {
901	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
902		1065
903	my $caller = caller;
904	#warn "registering extcmd '$name' to '$caller'";
905
906	$EXTCMD{$name} = [$cb, $caller];	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
907	}	1073	}
908		1074
909	cf::player->attach (	1075	cf::player->attach (
910	on_command => sub {	1076	on_command => sub {
911	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
924		1090
925	my $msg = eval { from_json $buf };	1091	my $msg = eval { from_json $buf };
926		1092
927	if (ref $msg) {	1093	if (ref $msg) {
928	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
929	if (my %reply = $cb->[0]->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
930	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
931	}	1097	}
932	}	1098	}
933	} else {	1099	} else {
934	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1100	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
936		1102
937	cf::override;	1103	cf::override;
938	},	1104	},
939	);	1105	);
940		1106
941	sub register {
942	my ($base, $pkg) = @_;
943
944	#TODO
945	}
946
947	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<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1406
		1407	# create single paragraphs (very hackish)
		1408	s/(?<=\S)\n(?=\w)/ /g;
		1409
		1410	$_
		1411	}
		1412
		1413	=item $player->ext_reply ($msgid, %msg)
		1414
		1415	Sends an ext reply to the player.
		1416
		1417	=cut
		1418
		1419	sub ext_reply($$%) {
		1420	my ($self, $id, %msg) = @_;
		1421
		1422	$msg{msgid} = $id;
		1423	$self->send ("ext " . cf::to_json \%msg);
		1424	}
		1425
		1426	=item $player->ext_event ($type, %msg)
		1427
		1428	Sends an ext event to the client.
		1429
		1430	=cut
		1431
		1432	sub ext_event($$%) {
		1433	my ($self, $type, %msg) = @_;
		1434
		1435	$self->ns->ext_event ($type, %msg);
		1436	}
		1437
		1438	=head3 cf::region
		1439
		1440	=over 4
		1441
		1442	=cut
		1443
		1444	package cf::region;
		1445
		1446	=item cf::region::find_by_path $path
		1447
		1448	Tries to decuce the likely region for a map knowing only its path.
		1449
		1450	=cut
		1451
		1452	sub find_by_path($) {
948	my ($path) = @_;	1453	my ($path) = @_;
949		1454
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1455	my ($match, $specificity);
951	my $base = $1;
952	my $pkg = $1;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955		1456
956	warn "loading '$path' into '$pkg'\n";	1457	for my $region (list) {
957		1458	if ($region->match && $path =~ $region->match) {
958	open my $fh, "<:utf8", $path	1459	($match, $specificity) = ($region, $region->specificity)
959	or die "$path: $!";	1460	if $region->specificity > $specificity;
960		1461	}
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	eval $source
968	or die $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970
971	push @exts, $pkg;
972	$ext_pkg{$base} = $pkg;
973
974	# no strict 'refs';
975	# @{"$pkg\::ISA"} = ext::;
976
977	register $base, $pkg;
978	}
979
980	sub unload_extension {
981	my ($pkg) = @_;
982
983	warn "removing extension $pkg\n";
984
985	# remove hooks
986	#TODO
987	# for my $idx (0 .. $#PLUGIN_EVENT) {
988	# delete $hook[$idx]{$pkg};
989	# }	1462	}
990		1463
991	# remove commands	1464	$match
992	for my $name (keys %COMMAND) {
993	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
994
995	if (@cb) {
996	$COMMAND{$name} = \@cb;
997	} else {
998	delete $COMMAND{$name};
999	}
1000	}
1001
1002	# remove extcmds
1003	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1004	delete $EXTCMD{$name};
1005	}
1006
1007	if (my $cb = $pkg->can ("unload")) {
1008	eval {
1009	$cb->($pkg);
1010	1
1011	} or warn "$pkg unloaded, but with errors: $@";
1012	}
1013
1014	Symbol::delete_package $pkg;
1015	}
1016
1017	sub load_extensions {
1018	for my $ext (<$LIBDIR/*.ext>) {
1019	next unless -r $ext;
1020	eval {
1021	load_extension $ext;
1022	1
1023	} or warn "$ext not loaded: $@";
1024	}
1025	}
1026
1027	#############################################################################
1028	# load/save/clean perl data associated with a map
1029
1030	*cf::mapsupport::on_clean = sub {
1031	my ($map) = @_;
1032
1033	my $path = $map->tmpname;
1034	defined $path or return;
1035
1036	unlink "$path.pst";
1037	};
1038
1039	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1040
1041	#############################################################################
1042	# load/save perl data associated with player->ob objects
1043
1044	sub all_objects(@) {
1045	@_, map all_objects ($_->inv), @_
1046	}
1047
1048	# TODO: compatibility cruft, remove when no longer needed
1049	cf::player->attach (
1050	on_load => sub {
1051	my ($pl, $path) = @_;
1052
1053	for my $o (all_objects $pl->ob) {
1054	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1055	$o->set_ob_key_value ("_perl_data");
1056
1057	%$o = %{ Storable::thaw pack "H*", $value };
1058	}
1059	}
1060	},
1061	);
1062
1063	#############################################################################
1064
1065	=head2 CORE EXTENSIONS
1066
1067	Functions and methods that extend core crossfire objects.
1068
1069	=head3 cf::player
1070
1071	=over 4
1072
1073	=item cf::player::exists $login
1074
1075	Returns true when the given account exists.
1076
1077	=cut
1078
1079	sub cf::player::exists($) {
1080	cf::player::find $_[0]
1081	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1082	}
1083
1084	=item $player->ext_reply ($msgid, $msgtype, %msg)
1085
1086	Sends an ext reply to the player.
1087
1088	=cut
1089
1090	sub cf::player::ext_reply($$$%) {
1091	my ($self, $id, %msg) = @_;
1092
1093	$msg{msgid} = $id;
1094
1095	$self->send ("ext " . to_json \%msg);
1096	}	1465	}
1097		1466
1098	=back	1467	=back
1099
1100		1468
1101	=head3 cf::map	1469	=head3 cf::map
1102		1470
1103	=over 4	1471	=over 4
1104		1472
…		…
1107	package cf::map;	1475	package cf::map;
1108		1476
1109	use Fcntl;	1477	use Fcntl;
1110	use Coro::AIO;	1478	use Coro::AIO;
1111		1479
		1480	use overload
		1481	'""' => \&as_string,
		1482	fallback => 1;
		1483
1112	our $MAX_RESET = 3600;	1484	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1485	our $DEFAULT_RESET = 3000;
1114		1486
1115	sub generate_random_map {	1487	sub generate_random_map {
1116	my ($path, $rmp) = @_;	1488	my ($self, $rmp) = @_;
1117
1118	# mit "rum" bekleckern, nicht	1489	# mit "rum" bekleckern, nicht
1119	cf::map::_create_random_map	1490	$self->_create_random_map (
1120	$path,
1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1491	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1492	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1493	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1124	$rmp->{exit_on_final_map},	1494	$rmp->{exit_on_final_map},
1125	$rmp->{xsize}, $rmp->{ysize},	1495	$rmp->{xsize}, $rmp->{ysize},
1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1496	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1497	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1498	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1129	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1499	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1500	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1131	(cf::region::find $rmp->{region})	1501	(cf::region::find $rmp->{region}), $rmp->{custom}
		1502	)
		1503	}
		1504
		1505	=item cf::map->register ($regex, $prio)
		1506
		1507	Register a handler for the map path matching the given regex at the
		1508	givne priority (higher is better, built-in handlers have priority 0, the
		1509	default).
		1510
		1511	=cut
		1512
		1513	sub register {
		1514	my (undef, $regex, $prio) = @_;
		1515	my $pkg = caller;
		1516
		1517	no strict;
		1518	push @{"$pkg\::ISA"}, __PACKAGE__;
		1519
		1520	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1521	}
		1522
		1523	# also paths starting with '/'
		1524	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1525
		1526	sub thawer_merge {
		1527	my ($self, $merge) = @_;
		1528
		1529	# we have to keep some variables in memory intact
		1530	local $self->{path};
		1531	local $self->{load_path};
		1532
		1533	$self->SUPER::thawer_merge ($merge);
		1534	}
		1535
		1536	sub normalise {
		1537	my ($path, $base) = @_;
		1538
		1539	$path = "$path"; # make sure its a string
		1540
		1541	$path =~ s/\.map$//;
		1542
		1543	# map plan:
		1544	#
		1545	# /! non-realised random map exit (special hack!)
		1546	# {... are special paths that are not being touched
		1547	# ?xxx/... are special absolute paths
		1548	# ?random/... random maps
		1549	# /... normal maps
		1550	# ~user/... per-player map of a specific user
		1551
		1552	$path =~ s/$PATH_SEP/\//go;
		1553
		1554	# treat it as relative path if it starts with
		1555	# something that looks reasonable
		1556	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1557	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1558
		1559	$base =~ s{[^/]+/?$}{};
		1560	$path = "$base/$path";
		1561	}
		1562
		1563	for ($path) {
		1564	redo if s{//}{/};
		1565	redo if s{/\.?/}{/};
		1566	redo if s{/[^/]+/\.\./}{/};
		1567	}
		1568
		1569	$path
		1570	}
		1571
		1572	sub new_from_path {
		1573	my (undef, $path, $base) = @_;
		1574
		1575	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1576
		1577	$path = normalise $path, $base;
		1578
		1579	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1580	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1581	my $self = bless cf::map::new, $pkg;
		1582	$self->{path} = $path; $self->path ($path);
		1583	$self->init; # pass $1 etc.
		1584	return $self;
		1585	}
		1586	}
		1587
		1588	Carp::carp "unable to resolve path '$path' (base '$base').";
		1589	()
		1590	}
		1591
		1592	sub init {
		1593	my ($self) = @_;
		1594
		1595	$self
		1596	}
		1597
		1598	sub as_string {
		1599	my ($self) = @_;
		1600
		1601	"$self->{path}"
		1602	}
		1603
		1604	# the displayed name, this is a one way mapping
		1605	sub visible_name {
		1606	&as_string
		1607	}
		1608
		1609	# the original (read-only) location
		1610	sub load_path {
		1611	my ($self) = @_;
		1612
		1613	"$MAPDIR/$self->{path}.map"
		1614	}
		1615
		1616	# the temporary/swap location
		1617	sub save_path {
		1618	my ($self) = @_;
		1619
		1620	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1621	"$TMPDIR/$path.map"
		1622	}
		1623
		1624	# the unique path, undef == no special unique path
		1625	sub uniq_path {
		1626	my ($self) = @_;
		1627
		1628	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1629	"$UNIQUEDIR/$path"
1132	}	1630	}
1133		1631
1134	# and all this just because we cannot iterate over	1632	# and all this just because we cannot iterate over
1135	# all maps in C++...	1633	# all maps in C++...
1136	sub change_all_map_light {	1634	sub change_all_map_light {
…		…
1138		1636
1139	$_->change_map_light ($change)	1637	$_->change_map_light ($change)
1140	for grep $_->outdoor, values %cf::MAP;	1638	for grep $_->outdoor, values %cf::MAP;
1141	}	1639	}
1142		1640
		1641	sub decay_objects {
		1642	my ($self) = @_;
		1643
		1644	return if $self->{deny_reset};
		1645
		1646	$self->do_decay_objects;
		1647	}
		1648
		1649	sub unlink_save {
		1650	my ($self) = @_;
		1651
		1652	utf8::encode (my $save = $self->save_path);
		1653	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1655	}
		1656
1143	sub try_load_header($) {	1657	sub load_header_from($) {
1144	my ($path) = @_;	1658	my ($self, $path) = @_;
1145		1659
1146	utf8::encode $path;	1660	utf8::encode $path;
1147	aio_open $path, O_RDONLY, 0	1661	#aio_open $path, O_RDONLY, 0
		1662	# or return;
		1663
		1664	$self->_load_header ($path)
1148	or return;	1665	or return;
1149		1666
1150	my $map = cf::map::new	1667	$self->{load_path} = $path;
		1668
		1669	1
		1670	}
		1671
		1672	sub load_header_orig {
		1673	my ($self) = @_;
		1674
		1675	$self->load_header_from ($self->load_path)
		1676	}
		1677
		1678	sub load_header_temp {
		1679	my ($self) = @_;
		1680
		1681	$self->load_header_from ($self->save_path)
		1682	}
		1683
		1684	sub prepare_temp {
		1685	my ($self) = @_;
		1686
		1687	$self->last_access ((delete $self->{last_access})
		1688	|| $cf::RUNTIME); #d#
		1689	# safety
		1690	$self->{instantiate_time} = $cf::RUNTIME
		1691	if $self->{instantiate_time} > $cf::RUNTIME;
		1692	}
		1693
		1694	sub prepare_orig {
		1695	my ($self) = @_;
		1696
		1697	$self->{load_original} = 1;
		1698	$self->{instantiate_time} = $cf::RUNTIME;
		1699	$self->last_access ($cf::RUNTIME);
		1700	$self->instantiate;
		1701	}
		1702
		1703	sub load_header {
		1704	my ($self) = @_;
		1705
		1706	if ($self->load_header_temp) {
		1707	$self->prepare_temp;
		1708	} else {
		1709	$self->load_header_orig
1151	or return;	1710	or return;
		1711	$self->prepare_orig;
		1712	}
1152		1713
1153	# for better error messages only, will be overwritten	1714	$self->{deny_reset} = 1
1154	$map->path ($path);	1715	if $self->no_reset;
1155		1716
1156	$map->load_header ($path)	1717	$self->default_region (cf::region::find_by_path $self->{path})
1157	or return;	1718	unless $self->default_region;
1158		1719
1159	$map->{load_path} = $path;	1720	1
1160
1161	$map
1162	}	1721	}
1163		1722
1164	sub find;	1723	sub find;
1165	sub find {	1724	sub find {
1166	my ($path, $origin) = @_;	1725	my ($path, $origin) = @_;
1167		1726
1168	#warn "find<$path,$origin>\n";#d#
1169
1170	$path = new cf::path $path, $origin && $origin->path;	1727	$path = normalise $path, $origin && $origin->path;
1171	my $key = $path->as_string;
1172		1728
1173	cf::lock_wait "map_find:$key";	1729	cf::lock_wait "map_find:$path";
1174		1730
1175	$cf::MAP{$key} || do {	1731	$cf::MAP{$path} || do {
1176	my $guard = cf::lock_acquire "map_find:$key";	1732	my $guard = cf::lock_acquire "map_find:$path";
1177		1733	my $map = new_from_path cf::map $path
1178	# do it the slow way
1179	my $map = try_load_header $path->save_path;
1180
1181	Coro::cede;
1182
1183	if ($map) {
1184	$map->last_access ((delete $map->{last_access})
1185	|| $cf::RUNTIME); #d#
1186	# safety
1187	$map->{instantiate_time} = $cf::RUNTIME
1188	if $map->{instantiate_time} > $cf::RUNTIME;
1189	} else {
1190	if (my $rmp = $path->random_map_params) {
1191	$map = generate_random_map $key, $rmp;
1192	} else {
1193	$map = try_load_header $path->load_path;
1194	}
1195
1196	$map or return;	1734	or return;
1197		1735
1198	$map->{load_original} = 1;
1199	$map->{instantiate_time} = $cf::RUNTIME;
1200	$map->last_access ($cf::RUNTIME);
1201	$map->instantiate;
1202
1203	# per-player maps become, after loading, normal maps
1204	$map->per_player (0) if $path->{user_rel};
1205	}
1206
1207	$map->path ($key);
1208	$map->{path} = $path;
1209	$map->{last_save} = $cf::RUNTIME;	1736	$map->{last_save} = $cf::RUNTIME;
1210		1737
1211	Coro::cede;	1738	$map->load_header
		1739	or return;
1212		1740
1213	if ($map->should_reset) {	1741	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1742	# doing this can freeze the server in a sync job, obviously
		1743	#$cf::WAIT_FOR_TICK->wait;
1214	$map->reset;	1744	$map->reset;
1215	undef $guard;	1745	undef $guard;
1216	$map = find $path	1746	return find $path;
1217	or return;
1218	}	1747	}
1219		1748
1220	$cf::MAP{$key} = $map	1749	$cf::MAP{$path} = $map
1221	}	1750	}
1222	}	1751	}
		1752
		1753	sub pre_load { }
		1754	sub post_load { }
1223		1755
1224	sub load {	1756	sub load {
1225	my ($self) = @_;	1757	my ($self) = @_;
1226		1758
		1759	local $self->{deny_reset} = 1; # loading can take a long time
		1760
1227	my $path = $self->{path};	1761	my $path = $self->{path};
		1762
		1763	{
1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1764	my $guard = cf::lock_acquire "map_load:$path";
1229		1765
1230	return if $self->in_memory != cf::MAP_SWAPPED;	1766	return if $self->in_memory != cf::MAP_SWAPPED;
1231		1767
1232	$self->in_memory (cf::MAP_LOADING);	1768	$self->in_memory (cf::MAP_LOADING);
1233		1769
1234	$self->alloc;	1770	$self->alloc;
		1771
		1772	$self->pre_load;
		1773	Coro::cede;
		1774
1235	$self->load_objects ($self->{load_path}, 1)	1775	$self->_load_objects ($self->{load_path}, 1)
1236	or return;	1776	or return;
1237		1777
1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1778	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1239	if delete $self->{load_original};	1779	if delete $self->{load_original};
1240		1780
1241	if (my $uniq = $path->uniq_path) {	1781	if (my $uniq = $self->uniq_path) {
1242	utf8::encode $uniq;	1782	utf8::encode $uniq;
1243	if (aio_open $uniq, O_RDONLY, 0) {	1783	if (aio_open $uniq, O_RDONLY, 0) {
1244	$self->clear_unique_items;	1784	$self->clear_unique_items;
1245	$self->load_objects ($uniq, 0);	1785	$self->_load_objects ($uniq, 0);
1246	}	1786	}
1247	}	1787	}
1248		1788
1249	Coro::cede;	1789	Coro::cede;
1250
1251	# now do the right thing for maps	1790	# now do the right thing for maps
1252	$self->link_multipart_objects;	1791	$self->link_multipart_objects;
1253
1254	if ($self->{path}->is_style_map) {
1255	$self->{deny_save} = 1;
1256	$self->{deny_reset} = 1;
1257	} else {
1258	$self->fix_auto_apply;
1259	$self->decay_objects;
1260	$self->update_buttons;
1261	$self->set_darkness_map;
1262	$self->difficulty ($self->estimate_difficulty)	1792	$self->difficulty ($self->estimate_difficulty)
1263	unless $self->difficulty;	1793	unless $self->difficulty;
		1794	Coro::cede;
		1795
		1796	unless ($self->{deny_activate}) {
		1797	$self->decay_objects;
		1798	$self->fix_auto_apply;
		1799	$self->update_buttons;
		1800	Coro::cede;
		1801	$self->set_darkness_map;
		1802	Coro::cede;
1264	$self->activate;	1803	$self->activate;
1265	}	1804	}
1266		1805
1267	Coro::cede;
1268
1269	$self->in_memory (cf::MAP_IN_MEMORY);	1806	$self->in_memory (cf::MAP_IN_MEMORY);
		1807	}
		1808
		1809	$self->post_load;
		1810	}
		1811
		1812	sub customise_for {
		1813	my ($self, $ob) = @_;
		1814
		1815	return find "~" . $ob->name . "/" . $self->{path}
		1816	if $self->per_player;
		1817
		1818	# return find "?party/" . $ob->name . "/" . $self->{path}
		1819	# if $self->per_party;
		1820
		1821	$self
		1822	}
		1823
		1824	# find and load all maps in the 3x3 area around a map
		1825	sub load_diag {
		1826	my ($map) = @_;
		1827
		1828	my @diag; # diagonal neighbours
		1829
		1830	for (0 .. 3) {
		1831	my $neigh = $map->tile_path ($_)
		1832	or next;
		1833	$neigh = find $neigh, $map
		1834	or next;
		1835	$neigh->load;
		1836
		1837	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1838	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1839	}
		1840
		1841	for (@diag) {
		1842	my $neigh = find @$_
		1843	or next;
		1844	$neigh->load;
		1845	}
1270	}	1846	}
1271		1847
1272	sub find_sync {	1848	sub find_sync {
1273	my ($path, $origin) = @_;	1849	my ($path, $origin) = @_;
1274		1850
1275	cf::sync_job {	1851	cf::sync_job { find $path, $origin }
1276	my $map = cf::map::find $path, $origin;
1277	$map
1278	}
1279	}	1852	}
1280		1853
1281	sub do_load_sync {	1854	sub do_load_sync {
1282	my ($map) = @_;	1855	my ($map) = @_;
1283		1856
1284	cf::sync_job { $map->load };	1857	cf::sync_job { $map->load };
1285	}	1858	}
1286		1859
		1860	our %MAP_PREFETCH;
		1861	our $MAP_PREFETCHER = undef;
		1862
		1863	sub find_async {
		1864	my ($path, $origin) = @_;
		1865
		1866	$path = normalise $path, $origin && $origin->{path};
		1867
		1868	if (my $map = $cf::MAP{$path}) {
		1869	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1870	}
		1871
		1872	undef $MAP_PREFETCH{$path};
		1873	$MAP_PREFETCHER ||= cf::async {
		1874	while (%MAP_PREFETCH) {
		1875	for my $path (keys %MAP_PREFETCH) {
		1876	my $map = find $path
		1877	or next;
		1878	$map->load;
		1879
		1880	delete $MAP_PREFETCH{$path};
		1881	}
		1882	}
		1883	undef $MAP_PREFETCHER;
		1884	};
		1885	$MAP_PREFETCHER->prio (6);
		1886
		1887	()
		1888	}
		1889
1287	sub save {	1890	sub save {
1288	my ($self) = @_;	1891	my ($self) = @_;
1289		1892
1290	my $lock = cf::lock_acquire "map_data:" . $self->path;	1893	my $lock = cf::lock_acquire "map_data:" . $self->path;
1291		1894
1292	$self->{last_save} = $cf::RUNTIME;	1895	$self->{last_save} = $cf::RUNTIME;
1293		1896
1294	return unless $self->dirty;	1897	return unless $self->dirty;
1295		1898
1296	my $save = $self->{path}->save_path; utf8::encode $save;	1899	my $save = $self->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1900	my $uniq = $self->uniq_path; utf8::encode $uniq;
1298		1901
1299	$self->{load_path} = $save;	1902	$self->{load_path} = $save;
1300		1903
1301	return if $self->{deny_save};	1904	return if $self->{deny_save};
1302		1905
1303	local $self->{last_access} = $self->last_access;#d#	1906	local $self->{last_access} = $self->last_access;#d#
1304		1907
		1908	cf::async {
		1909	$_->contr->save for $self->players;
		1910	};
		1911
1305	if ($uniq) {	1912	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1913	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);	1914	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {	1915	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1916	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}	1917	}
1311	}	1918	}
1312		1919
1313	sub swap_out {	1920	sub swap_out {
1314	my ($self) = @_;	1921	my ($self) = @_;
…		…
1328		1935
1329	sub reset_at {	1936	sub reset_at {
1330	my ($self) = @_;	1937	my ($self) = @_;
1331		1938
1332	# TODO: safety, remove and allow resettable per-player maps	1939	# TODO: safety, remove and allow resettable per-player maps
1333	return 1e99 if $self->{path}{user_rel};
1334	return 1e99 if $self->{deny_reset};	1940	return 1e99 if $self->{deny_reset};
1335		1941
1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1337	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1338		1944
…		…
1343	my ($self) = @_;	1949	my ($self) = @_;
1344		1950
1345	$self->reset_at <= $cf::RUNTIME	1951	$self->reset_at <= $cf::RUNTIME
1346	}	1952	}
1347		1953
1348	sub unlink_save {
1349	my ($self) = @_;
1350
1351	utf8::encode (my $save = $self->{path}->save_path);
1352	aioreq_pri 3; IO::AIO::aio_unlink $save;
1353	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1354	}
1355
1356	sub rename {
1357	my ($self, $new_path) = @_;
1358
1359	$self->unlink_save;
1360
1361	delete $cf::MAP{$self->path};
1362	$self->{path} = new cf::path $new_path;
1363	$self->path ($self->{path}->as_string);
1364	$cf::MAP{$self->path} = $self;
1365
1366	$self->save;
1367	}
1368
1369	sub reset {	1954	sub reset {
1370	my ($self) = @_;	1955	my ($self) = @_;
1371		1956
1372	my $lock = cf::lock_acquire "map_data:" . $self->path;	1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
1373		1958
1374	return if $self->players;	1959	return if $self->players;
1375	return if $self->{path}{user_rel};#d#
1376		1960
1377	warn "resetting map ", $self->path;#d#	1961	warn "resetting map ", $self->path;
		1962
		1963	$self->in_memory (cf::MAP_SWAPPED);
		1964
		1965	# need to save uniques path
		1966	unless ($self->{deny_save}) {
		1967	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1968
		1969	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1970	if $uniq;
		1971	}
1378		1972
1379	delete $cf::MAP{$self->path};	1973	delete $cf::MAP{$self->path};
		1974
		1975	$self->clear;
1380		1976
1381	$_->clear_links_to ($self) for values %cf::MAP;	1977	$_->clear_links_to ($self) for values %cf::MAP;
1382		1978
1383	$self->unlink_save;	1979	$self->unlink_save;
1384	$self->destroy;	1980	$self->destroy;
…		…
1387	my $nuke_counter = "aaaa";	1983	my $nuke_counter = "aaaa";
1388		1984
1389	sub nuke {	1985	sub nuke {
1390	my ($self) = @_;	1986	my ($self) = @_;
1391		1987
		1988	delete $cf::MAP{$self->path};
		1989
		1990	$self->unlink_save;
		1991
		1992	bless $self, "cf::map";
		1993	delete $self->{deny_reset};
1392	$self->{deny_save} = 1;	1994	$self->{deny_save} = 1;
1393	$self->reset_timeout (1);	1995	$self->reset_timeout (1);
1394	$self->rename ("{nuke}/" . ($nuke_counter++));	1996	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1997
		1998	$cf::MAP{$self->path} = $self;
		1999
1395	$self->reset; # polite request, might not happen	2000	$self->reset; # polite request, might not happen
1396	}	2001	}
1397		2002
1398	sub customise_for {	2003	=item $maps = cf::map::tmp_maps
1399	my ($map, $ob) = @_;
1400		2004
1401	if ($map->per_player) {	2005	Returns an arrayref with all map paths of currently instantiated and saved
1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2006	maps. May block.
		2007
		2008	=cut
		2009
		2010	sub tmp_maps() {
1403	}	2011	[
1404		2012	map {
1405	$map	2013	utf8::decode $_;
		2014	/\.map$/
		2015	? normalise $_
		2016	: ()
		2017	} @{ aio_readdir $TMPDIR or [] }
		2018	]
1406	}	2019	}
1407		2020
1408	sub emergency_save {	2021	=item $maps = cf::map::random_maps
1409	my $freeze_guard = cf::freeze_mainloop;
1410		2022
1411	warn "enter emergency map save\n";	2023	Returns an arrayref with all map paths of currently instantiated and saved
		2024	random maps. May block.
1412		2025
1413	cf::sync_job {	2026	=cut
1414	warn "begin emergency map save\n";
1415	$_->save for values %cf::MAP;
1416	};
1417		2027
1418	warn "end emergency map save\n";	2028	sub random_maps() {
		2029	[
		2030	map {
		2031	utf8::decode $_;
		2032	/\.map$/
		2033	? normalise "?random/$_"
		2034	: ()
		2035	} @{ aio_readdir $RANDOMDIR or [] }
		2036	]
		2037	}
		2038
		2039	=item cf::map::unique_maps
		2040
		2041	Returns an arrayref of paths of all shared maps that have
		2042	instantiated unique items. May block.
		2043
		2044	=cut
		2045
		2046	sub unique_maps() {
		2047	[
		2048	map {
		2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $UNIQUEDIR or [] }
		2054	]
1419	}	2055	}
1420		2056
1421	package cf;	2057	package cf;
1422		2058
1423	=back	2059	=back
1424		2060
		2061	=head3 cf::object
		2062
		2063	=cut
		2064
		2065	package cf::object;
		2066
		2067	=over 4
		2068
		2069	=item $ob->inv_recursive
		2070
		2071	Returns the inventory of the object _and_ their inventories, recursively.
		2072
		2073	=cut
		2074
		2075	sub inv_recursive_;
		2076	sub inv_recursive_ {
		2077	map { $_, inv_recursive_ $_->inv } @_
		2078	}
		2079
		2080	sub inv_recursive {
		2081	inv_recursive_ inv $_[0]
		2082	}
		2083
		2084	package cf;
		2085
		2086	=back
1425		2087
1426	=head3 cf::object::player	2088	=head3 cf::object::player
1427		2089
1428	=over 4	2090	=over 4
1429		2091
…		…
1443		2105
1444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1445		2107
1446	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1447	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1448	} else {	2111	} else {
		2112	my $pl = $self->contr;
		2113
		2114	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2115	my $diag = $pl->{npc_dialog};
		2116	$diag->{pl}->ext_reply (
		2117	$diag->{id},
		2118	msgtype => "reply",
		2119	msg => $diag->{pl}->expand_cfpod ($msg),
		2120	add_topics => []
		2121	);
		2122
		2123	} else {
1449	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1450	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1451	}	2127	}
1452	}	2128	}
1453		2129
1454	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1455		2131
…		…
1469		2145
1470	=item $player_object->enter_link	2146	=item $player_object->enter_link
1471		2147
1472	Freezes the player and moves him/her to a special map (C<{link}>).	2148	Freezes the player and moves him/her to a special map (C<{link}>).
1473		2149
1474	The player should be reaosnably safe there for short amounts of time. You	2150	The player should be reasonably safe there for short amounts of time. You
1475	I<MUST> call C<leave_link> as soon as possible, though.	2151	I<MUST> call C<leave_link> as soon as possible, though.
1476		2152
		2153	Will never block.
		2154
1477	=item $player_object->leave_link ($map, $x, $y)	2155	=item $player_object->leave_link ($map, $x, $y)
1478		2156
1479	Moves the player out of the specila link map onto the given map. If the	2157	Moves the player out of the special C<{link}> map onto the specified
1480	map is not valid (or omitted), the player will be moved back to the	2158	map. If the map is not valid (or omitted), the player will be moved back
1481	location he/she was before the call to C<enter_link>, or, if that fails,	2159	to the location he/she was before the call to C<enter_link>, or, if that
1482	to the emergency map position.	2160	fails, to the emergency map position.
1483		2161
1484	Might block.	2162	Might block.
1485		2163
1486	=cut	2164	=cut
		2165
		2166	sub link_map {
		2167	unless ($LINK_MAP) {
		2168	$LINK_MAP = cf::map::find "{link}"
		2169	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2170	$LINK_MAP->load;
		2171	}
		2172
		2173	$LINK_MAP
		2174	}
1487		2175
1488	sub cf::object::player::enter_link {	2176	sub cf::object::player::enter_link {
1489	my ($self) = @_;	2177	my ($self) = @_;
1490		2178
1491	$self->deactivate_recursive;	2179	$self->deactivate_recursive;
1492		2180
1493	return if $self->map == $LINK_MAP;	2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
1494		2182
1495	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1496	if $self->map;	2184	if $self->map && $self->map->{path} ne "{link}";
1497		2185
1498	$self->enter_map ($LINK_MAP, 20, 20);	2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1499	}	2187	}
1500		2188
1501	sub cf::object::player::leave_link {	2189	sub cf::object::player::leave_link {
1502	my ($self, $map, $x, $y) = @_;	2190	my ($self, $map, $x, $y) = @_;
		2191
		2192	return unless $self->contr->active;
1503		2193
1504	my $link_pos = delete $self->{_link_pos};	2194	my $link_pos = delete $self->{_link_pos};
1505		2195
1506	unless ($map) {	2196	unless ($map) {
1507	# restore original map position	2197	# restore original map position
…		…
1521	# use -1 or undef as default coordinates, not 0, 0	2211	# use -1 or undef as default coordinates, not 0, 0
1522	($x, $y) = ($map->enter_x, $map->enter_y)	2212	($x, $y) = ($map->enter_x, $map->enter_y)
1523	if $x <=0 && $y <= 0;	2213	if $x <=0 && $y <= 0;
1524		2214
1525	$map->load;	2215	$map->load;
		2216	$map->load_diag;
1526		2217
		2218	return unless $self->contr->active;
1527	$self->activate_recursive;	2219	$self->activate_recursive;
		2220
		2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1528	$self->enter_map ($map, $x, $y);	2222	$self->enter_map ($map, $x, $y);
1529	}	2223	}
1530		2224
1531	cf::player->attach (
1532	on_logout => sub {
1533	my ($pl) = @_;
1534
1535	# abort map switching before logout
1536	if ($pl->ob->{_link_pos}) {
1537	cf::sync_job {
1538	$pl->ob->leave_link
1539	};
1540	}
1541	},
1542	on_login => sub {
1543	my ($pl) = @_;
1544
1545	# try to abort aborted map switching on player login :)
1546	# should happen only on crashes
1547	if ($pl->ob->{_link_pos}) {
1548
1549	$pl->ob->enter_link;
1550	(Coro::async_pool {
1551	# we need this sleep as the login has a concurrent enter_exit running
1552	# and this sleep increases chances of the player not ending up in scorn
1553	Coro::Timer::sleep 1;
1554	$pl->ob->leave_link;
1555	})->prio (2);
1556	}
1557	},
1558	);
1559
1560	=item $player_object->goto ($path, $x, $y)	2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1561		2226
		2227	Moves the player to the given map-path and coordinates by first freezing
		2228	her, loading and preparing them map, calling the provided $check callback
		2229	that has to return the map if sucecssful, and then unfreezes the player on
		2230	the new (success) or old (failed) map position.
		2231
1562	=cut	2232	=cut
		2233
		2234	our $GOTOGEN;
1563		2235
1564	sub cf::object::player::goto {	2236	sub cf::object::player::goto {
1565	my ($self, $path, $x, $y) = @_;	2237	my ($self, $path, $x, $y, $check) = @_;
		2238
		2239	# do generation counting so two concurrent goto's will be executed in-order
		2240	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1566		2241
1567	$self->enter_link;	2242	$self->enter_link;
1568		2243
1569	(Coro::async_pool {	2244	(async {
1570	$path = new cf::path $path;	2245	my $map = eval {
1571
1572	my $map = cf::map::find $path->as_string;	2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
1573	$map = $map->customise_for ($self) if $map;	2249	$map = $map->customise_for ($self);
1574		2250	$map = $check->($map) if $check && $map;
1575	# warn "entering ", $map->path, " at ($x, $y)\n"	2251	} else {
1576	# if $map;
1577
1578	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2252	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2253	}
1579		2254
		2255	$map
		2256	};
		2257
		2258	if ($@) {
		2259	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2260	LOG llevError | logBacktrace, Carp::longmess $@;
		2261	}
		2262
		2263	if ($gen == $self->{_goto_generation}) {
		2264	delete $self->{_goto_generation};
1580	$self->leave_link ($map, $x, $y);	2265	$self->leave_link ($map, $x, $y);
		2266	}
1581	})->prio (1);	2267	})->prio (1);
1582	}	2268	}
1583		2269
1584	=item $player_object->enter_exit ($exit_object)	2270	=item $player_object->enter_exit ($exit_object)
1585		2271
…		…
1587		2273
1588	sub parse_random_map_params {	2274	sub parse_random_map_params {
1589	my ($spec) = @_;	2275	my ($spec) = @_;
1590		2276
1591	my $rmp = { # defaults	2277	my $rmp = { # defaults
1592	xsize => 10,	2278	xsize => (cf::rndm 15, 40),
1593	ysize => 10,	2279	ysize => (cf::rndm 15, 40),
		2280	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2281	#layout => string,
1594	};	2282	};
1595		2283
1596	for (split /\n/, $spec) {	2284	for (split /\n/, $spec) {
1597	my ($k, $v) = split /\s+/, $_, 2;	2285	my ($k, $v) = split /\s+/, $_, 2;
1598		2286
…		…
1602	$rmp	2290	$rmp
1603	}	2291	}
1604		2292
1605	sub prepare_random_map {	2293	sub prepare_random_map {
1606	my ($exit) = @_;	2294	my ($exit) = @_;
		2295
		2296	my $guard = cf::lock_acquire "exit_prepare:$exit";
1607		2297
1608	# all this does is basically replace the /! path by	2298	# all this does is basically replace the /! path by
1609	# a new random map path (?random/...) with a seed	2299	# a new random map path (?random/...) with a seed
1610	# that depends on the exit object	2300	# that depends on the exit object
1611		2301
1612	my $rmp = parse_random_map_params $exit->msg;	2302	my $rmp = parse_random_map_params $exit->msg;
1613		2303
1614	if ($exit->map) {	2304	if ($exit->map) {
1615	$rmp->{region} = $exit->map->region_name;	2305	$rmp->{region} = $exit->region->name;
1616	$rmp->{origin_map} = $exit->map->path;	2306	$rmp->{origin_map} = $exit->map->path;
1617	$rmp->{origin_x} = $exit->x;	2307	$rmp->{origin_x} = $exit->x;
1618	$rmp->{origin_y} = $exit->y;	2308	$rmp->{origin_y} = $exit->y;
1619	}	2309	}
1620		2310
1621	$rmp->{random_seed} ||= $exit->random_seed;	2311	$rmp->{random_seed} ||= $exit->random_seed;
1622		2312
1623	my $data = cf::to_json $rmp;	2313	my $data = cf::to_json $rmp;
1624	my $md5 = Digest::MD5::md5_hex $data;	2314	my $md5 = Digest::MD5::md5_hex $data;
		2315	my $meta = "$RANDOMDIR/$md5.meta";
1625		2316
1626	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2317	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1627	aio_write $fh, 0, (length $data), $data, 0;	2318	aio_write $fh, 0, (length $data), $data, 0;
		2319	undef $fh;
		2320	aio_rename "$meta~", $meta;
1628		2321
1629	$exit->slaying ("?random/$md5");	2322	$exit->slaying ("?random/$md5");
1630	$exit->msg (undef);	2323	$exit->msg (undef);
1631	}	2324	}
1632	}	2325	}
…		…
1634	sub cf::object::player::enter_exit {	2327	sub cf::object::player::enter_exit {
1635	my ($self, $exit) = @_;	2328	my ($self, $exit) = @_;
1636		2329
1637	return unless $self->type == cf::PLAYER;	2330	return unless $self->type == cf::PLAYER;
1638		2331
		2332	if ($exit->slaying eq "/!") {
		2333	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2334	# the problem is that $exit might not survive long enough
		2335	# so it needs to be done right now, right here
		2336	cf::sync_job { prepare_random_map $exit };
		2337	}
		2338
		2339	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2340	my $hp = $exit->stats->hp;
		2341	my $sp = $exit->stats->sp;
		2342
1639	$self->enter_link;	2343	$self->enter_link;
1640		2344
1641	(Coro::async_pool {	2345	(async {
1642	$self->deactivate_recursive; # just to be sure	2346	$self->deactivate_recursive; # just to be sure
1643	unless (eval {	2347	unless (eval {
1644	prepare_random_map $exit	2348	$self->goto ($slaying, $hp, $sp);
1645	if $exit->slaying eq "/!";
1646
1647	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1648	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1649		2349
1650	1;	2350	1;
1651	}) {	2351	}) {
1652	$self->message ("Something went wrong deep within the crossfire server. "	2352	$self->message ("Something went wrong deep within the crossfire server. "
1653	. "I'll try to bring you back to the map you were before. "	2353	. "I'll try to bring you back to the map you were before. "
1654	. "Please report this to the dungeon master",	2354	. "Please report this to the dungeon master!",
1655	cf::NDI_UNIQUE | cf::NDI_RED);	2355	cf::NDI_UNIQUE | cf::NDI_RED);
1656		2356
1657	warn "ERROR in enter_exit: $@";	2357	warn "ERROR in enter_exit: $@";
1658	$self->leave_link;	2358	$self->leave_link;
1659	}	2359	}
1660	})->prio (1);	2360	})->prio (1);
…		…
1673		2373
1674	sub cf::client::send_drawinfo {	2374	sub cf::client::send_drawinfo {
1675	my ($self, $text, $flags) = @_;	2375	my ($self, $text, $flags) = @_;
1676		2376
1677	utf8::encode $text;	2377	utf8::encode $text;
1678	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2378	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1679	}	2379	}
1680		2380
		2381	=item $client->send_msg ($color, $type, $msg, [extra...])
		2382
		2383	Send a drawinfo or msg packet to the client, formatting the msg for the
		2384	client if neccessary. C<$type> should be a string identifying the type of
		2385	the message, with C<log> being the default. If C<$color> is negative, suppress
		2386	the message unless the client supports the msg packet.
		2387
		2388	=cut
		2389
		2390	sub cf::client::send_msg {
		2391	my ($self, $color, $type, $msg, @extra) = @_;
		2392
		2393	$msg = $self->pl->expand_cfpod ($msg);
		2394
		2395	if ($self->can_msg) {
		2396	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2397	} else {
		2398	# replace some tags by gcfclient-compatible ones
		2399	for ($msg) {
		2400	1 while
		2401	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2402	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2403	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2404	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2405	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2406	}
		2407
		2408	if ($color >= 0) {
		2409	if (0 && $msg =~ /\[/) {
		2410	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2411	} else {
		2412	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2413	$self->send_packet ("drawinfo $color $msg")
		2414	}
		2415	}
		2416	}
		2417	}
		2418
		2419	=item $client->ext_event ($type, %msg)
		2420
		2421	Sends an ext event to the client.
		2422
		2423	=cut
		2424
		2425	sub cf::client::ext_event($$%) {
		2426	my ($self, $type, %msg) = @_;
		2427
		2428	$msg{msgtype} = "event_$type";
		2429	$self->send_packet ("ext " . cf::to_json \%msg);
		2430	}
1681		2431
1682	=item $success = $client->query ($flags, "text", \&cb)	2432	=item $success = $client->query ($flags, "text", \&cb)
1683		2433
1684	Queues a query to the client, calling the given callback with	2434	Queues a query to the client, calling the given callback with
1685	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2435	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1686	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2436	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1687		2437
1688	Queries can fail, so check the return code. Or don't, as queries will become	2438	Queries can fail, so check the return code. Or don't, as queries will
1689	reliable at some point in the future.	2439	become reliable at some point in the future.
1690		2440
1691	=cut	2441	=cut
1692		2442
1693	sub cf::client::query {	2443	sub cf::client::query {
1694	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
1702	utf8::encode $text;	2452	utf8::encode $text;
1703	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1704		2454
1705	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
1706	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
1707	}	2459	}
1708		2460
1709	cf::client->attach (	2461	cf::client->attach (
1710	on_reply => sub {	2462	on_reply => sub {
1711	my ($ns, $msg) = @_;	2463	my ($ns, $msg) = @_;
…		…
1714	# get handled first	2466	# get handled first
1715	my $queue = delete $ns->{query_queue}	2467	my $queue = delete $ns->{query_queue}
1716	or return; # be conservative, not sure how that can happen, but we saw a crash here	2468	or return; # be conservative, not sure how that can happen, but we saw a crash here
1717		2469
1718	(shift @$queue)->[1]->($msg);	2470	(shift @$queue)->[1]->($msg);
		2471	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1719		2472
1720	push @{ $ns->{query_queue} }, @$queue;	2473	push @{ $ns->{query_queue} }, @$queue;
1721		2474
1722	if (@{ $ns->{query_queue} } == @$queue) {	2475	if (@{ $ns->{query_queue} } == @$queue) {
1723	if (@$queue) {	2476	if (@$queue) {
…		…
1725	} else {	2478	} else {
1726	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2479	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1727	}	2480	}
1728	}	2481	}
1729	},	2482	},
		2483	on_exticmd => sub {
		2484	my ($ns, $buf) = @_;
		2485
		2486	my $msg = eval { from_json $buf };
		2487
		2488	if (ref $msg) {
		2489	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2490	if (my %reply = $cb->($ns, $msg)) {
		2491	$reply{msgid} = $msg->{msgid};
		2492	$ns->send ("ext " . cf::to_json \%reply);
		2493	}
		2494	}
		2495	} else {
		2496	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2497	}
		2498
		2499	cf::override;
		2500	},
1730	);	2501	);
1731		2502
1732	=item $client->coro (\&cb)	2503	=item $client->async (\&cb)
1733		2504
1734	Create a new coroutine, running the specified callback. The coroutine will	2505	Create a new coroutine, running the specified callback. The coroutine will
1735	be automatically cancelled when the client gets destroyed (e.g. on logout,	2506	be automatically cancelled when the client gets destroyed (e.g. on logout,
1736	or loss of connection).	2507	or loss of connection).
1737		2508
1738	=cut	2509	=cut
1739		2510
1740	sub cf::client::coro {	2511	sub cf::client::async {
1741	my ($self, $cb) = @_;	2512	my ($self, $cb) = @_;
1742		2513
1743	my $coro = &Coro::async_pool ($cb);	2514	my $coro = &Coro::async ($cb);
1744		2515
1745	$coro->on_destroy (sub {	2516	$coro->on_destroy (sub {
1746	delete $self->{_coro}{$coro+0};	2517	delete $self->{_coro}{$coro+0};
1747	});	2518	});
1748		2519
…		…
1781		2552
1782	# here we export the classes and methods available to script code	2553	# here we export the classes and methods available to script code
1783		2554
1784	=pod	2555	=pod
1785		2556
1786	The following fucntions and emthods are available within a safe environment:	2557	The following functions and methods are available within a safe environment:
1787		2558
1788	cf::object contr pay_amount pay_player map	2559	cf::object contr pay_amount pay_player map
1789	cf::object::player player	2560	cf::object::player player
1790	cf::player peaceful	2561	cf::player peaceful
1791	cf::map trigger	2562	cf::map trigger
…		…
1872	=back	2643	=back
1873		2644
1874	=cut	2645	=cut
1875		2646
1876	#############################################################################	2647	#############################################################################
		2648	# the server's init and main functions
1877		2649
1878	=head2 EXTENSION DATABASE SUPPORT	2650	sub load_facedata($) {
		2651	my ($path) = @_;
1879		2652
1880	Crossfire maintains a very simple database for extension use. It can	2653	warn "loading facedata from $path\n";
1881	currently store anything that can be serialised using Storable, which
1882	excludes objects.
1883		2654
1884	The parameter C<$family> should best start with the name of the extension	2655	my $facedata;
1885	using it, it should be unique.	2656	0 < aio_load $path, $facedata
		2657	or die "$path: $!";
1886		2658
1887	=over 4	2659	$facedata = Coro::Storable::thaw $facedata;
1888		2660
1889	=item $hashref = cf::db_get $family	2661	$facedata->{version} == 2
		2662	or cf::cleanup "$path: version mismatch, cannot proceed.";
1890		2663
1891	Return a hashref for use by the extension C<$family>, which can be
1892	modified. After modifications, you have to call C<cf::db_dirty> or
1893	C<cf::db_sync>.
1894
1895	=item $value = cf::db_get $family => $key
1896
1897	Returns a single value from the database
1898
1899	=item cf::db_put $family => $hashref
1900
1901	Stores the given family hashref into the database. Updates are delayed, if
1902	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1903
1904	=item cf::db_put $family => $key => $value
1905
1906	Stores the given C<$value> in the family hash. Updates are delayed, if you
1907	want the data to be synced to disk immediately, use C<cf::db_sync>.
1908
1909	=item cf::db_dirty
1910
1911	Marks the database as dirty, to be updated at a later time.
1912
1913	=item cf::db_sync
1914
1915	Immediately write the database to disk I<if it is dirty>.
1916
1917	=cut
1918
1919	our $DB;
1920
1921	{
1922	my $path = cf::localdir . "/database.pst";
1923
1924	sub db_load() {
1925	$DB = stat $path ? Storable::retrieve $path : { };
1926	}	2664	{
		2665	my $faces = $facedata->{faceinfo};
1927		2666
1928	my $pid;	2667	while (my ($face, $info) = each %$faces) {
1929		2668	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1930	sub db_save() {	2669	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1931	waitpid $pid, 0 if $pid;	2670	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1932	if (0 == ($pid = fork)) {	2671	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1933	$DB->{_meta}{version} = 1;	2672	Coro::cede;
1934	Storable::nstore $DB, "$path~";
1935	rename "$path~", $path;
1936	cf::_exit 0 if defined $pid;
1937	}
1938	}
1939
1940	my $dirty;
1941
1942	sub db_sync() {
1943	db_save if $dirty;
1944	undef $dirty;
1945	}
1946
1947	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1948	db_sync;
1949	});
1950
1951	sub db_dirty() {
1952	$dirty = 1;
1953	$idle->start;
1954	}
1955
1956	sub db_get($;$) {
1957	@_ >= 2
1958	? $DB->{$_[0]}{$_[1]}
1959	: ($DB->{$_[0]} ||= { })
1960	}
1961
1962	sub db_put($$;$) {
1963	if (@_ >= 3) {
1964	$DB->{$_[0]}{$_[1]} = $_[2];
1965	} else {
1966	$DB->{$_[0]} = $_[1];
1967	}
1968	db_dirty;
1969	}
1970
1971	cf::global->attach (
1972	prio => 10000,
1973	on_cleanup => sub {
1974	db_sync;
1975	},	2673	}
1976	);
1977	}
1978		2674
1979	#############################################################################	2675	while (my ($face, $info) = each %$faces) {
1980	# the server's main()	2676	next unless $info->{smooth};
		2677	my $idx = cf::face::find $face
		2678	or next;
		2679	if (my $smooth = cf::face::find $info->{smooth}) {
		2680	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2681	} else {
		2682	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2683	}
		2684	Coro::cede;
		2685	}
		2686	}
		2687
		2688	{
		2689	my $anims = $facedata->{animinfo};
		2690
		2691	while (my ($anim, $info) = each %$anims) {
		2692	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2693	Coro::cede;
		2694	}
		2695
		2696	cf::anim::invalidate_all; # d'oh
		2697	}
		2698
		2699	1
		2700	}
		2701
		2702	sub reload_regions {
		2703	load_resource_file "$MAPDIR/regions"
		2704	or die "unable to load regions file\n";
		2705	}
		2706
		2707	sub reload_facedata {
		2708	load_facedata "$DATADIR/facedata"
		2709	or die "unable to load facedata\n";
		2710	}
		2711
		2712	sub reload_archetypes {
		2713	load_resource_file "$DATADIR/archetypes"
		2714	or die "unable to load archetypes\n";
		2715	}
		2716
		2717	sub reload_treasures {
		2718	load_resource_file "$DATADIR/treasures"
		2719	or die "unable to load treasurelists\n";
		2720	}
		2721
		2722	sub reload_resources {
		2723	warn "reloading resource files...\n";
		2724
		2725	reload_regions;
		2726	reload_facedata;
		2727	#reload_archetypes;#d#
		2728	reload_archetypes;
		2729	reload_treasures;
		2730
		2731	warn "finished reloading resource files\n";
		2732	}
		2733
		2734	sub init {
		2735	reload_resources;
		2736	}
1981		2737
1982	sub cfg_load {	2738	sub cfg_load {
1983	open my $fh, "<:utf8", cf::confdir . "/config"	2739	open my $fh, "<:utf8", "$CONFDIR/config"
1984	or return;	2740	or return;
1985		2741
1986	local $/;	2742	local $/;
1987	*CFG = YAML::Syck::Load <$fh>;	2743	*CFG = YAML::Syck::Load <$fh>;
1988		2744
…		…
1991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2747	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
1992	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2748	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1993		2749
1994	if (exists $CFG{mlockall}) {	2750	if (exists $CFG{mlockall}) {
1995	eval {	2751	eval {
1996	$CFG{mlockall} ? &mlockall : &munlockall	2752	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1997	and die "WARNING: m(un)lockall failed: $!\n";	2753	and die "WARNING: m(un)lockall failed: $!\n";
1998	};	2754	};
1999	warn $@ if $@;	2755	warn $@ if $@;
2000	}	2756	}
2001	}	2757	}
2002		2758
2003	sub main {	2759	sub main {
2004	# we must not ever block the main coroutine	2760	# we must not ever block the main coroutine
2005	local $Coro::idle = sub {	2761	local $Coro::idle = sub {
2006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2762	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2007	Coro::async_pool { Event::one_event };	2763	(async {
		2764	Event::one_event;
		2765	})->prio (Coro::PRIO_MAX);
2008	};	2766	};
2009		2767
2010	cfg_load;	2768	cfg_load;
2011	db_load;	2769	db_init;
2012	load_extensions;	2770	load_extensions;
		2771
		2772	$TICK_WATCHER->start;
2013	Event::loop;	2773	Event::loop;
2014	}	2774	}
2015		2775
2016	#############################################################################	2776	#############################################################################
2017	# initialisation	2777	# initialisation and cleanup
2018		2778
		2779	# install some emergency cleanup handlers
		2780	BEGIN {
		2781	for my $signal (qw(INT HUP TERM)) {
		2782	Event->signal (
		2783	reentrant => 0,
		2784	data => WF_AUTOCANCEL,
		2785	signal => $signal,
		2786	prio => 0,
		2787	cb => sub {
		2788	cf::cleanup "SIG$signal";
		2789	},
		2790	);
		2791	}
		2792	}
		2793
		2794	sub write_runtime {
		2795	my $runtime = "$LOCALDIR/runtime";
		2796
		2797	# first touch the runtime file to show we are still running:
		2798	# the fsync below can take a very very long time.
		2799
		2800	IO::AIO::aio_utime $runtime, undef, undef;
		2801
		2802	my $guard = cf::lock_acquire "write_runtime";
		2803
		2804	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2805	or return;
		2806
		2807	my $value = $cf::RUNTIME + 90 + 10;
		2808	# 10 is the runtime save interval, for a monotonic clock
		2809	# 60 allows for the watchdog to kill the server.
		2810
		2811	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2812	and return;
		2813
		2814	# always fsync - this file is important
		2815	aio_fsync $fh
		2816	and return;
		2817
		2818	# touch it again to show we are up-to-date
		2819	aio_utime $fh, undef, undef;
		2820
		2821	close $fh
		2822	or return;
		2823
		2824	aio_rename "$runtime~", $runtime
		2825	and return;
		2826
		2827	warn "runtime file written.\n";
		2828
		2829	1
		2830	}
		2831
		2832	sub emergency_save() {
		2833	my $freeze_guard = cf::freeze_mainloop;
		2834
		2835	warn "enter emergency perl save\n";
		2836
		2837	cf::sync_job {
		2838	# use a peculiar iteration method to avoid tripping on perl
		2839	# refcount bugs in for. also avoids problems with players
		2840	# and maps saved/destroyed asynchronously.
		2841	warn "begin emergency player save\n";
		2842	for my $login (keys %cf::PLAYER) {
		2843	my $pl = $cf::PLAYER{$login} or next;
		2844	$pl->valid or next;
		2845	$pl->save;
		2846	}
		2847	warn "end emergency player save\n";
		2848
		2849	warn "begin emergency map save\n";
		2850	for my $path (keys %cf::MAP) {
		2851	my $map = $cf::MAP{$path} or next;
		2852	$map->valid or next;
		2853	$map->save;
		2854	}
		2855	warn "end emergency map save\n";
		2856
		2857	warn "begin emergency database checkpoint\n";
		2858	BDB::db_env_txn_checkpoint $DB_ENV;
		2859	warn "end emergency database checkpoint\n";
		2860	};
		2861
		2862	warn "leave emergency perl save\n";
		2863	}
		2864
		2865	sub post_cleanup {
		2866	my ($make_core) = @_;
		2867
		2868	warn Carp::longmess "post_cleanup backtrace"
		2869	if $make_core;
		2870	}
		2871
2019	sub reload() {	2872	sub do_reload_perl() {
2020	# can/must only be called in main	2873	# can/must only be called in main
2021	if ($Coro::current != $Coro::main) {	2874	if ($Coro::current != $Coro::main) {
2022	warn "can only reload from main coroutine\n";	2875	warn "can only reload from main coroutine";
2023	return;	2876	return;
2024	}	2877	}
2025		2878
2026	warn "reloading...";	2879	warn "reloading...";
2027		2880
2028	my $guard = freeze_mainloop;	2881	warn "entering sync_job";
		2882
		2883	cf::sync_job {
		2884	cf::write_runtime; # external watchdog should not bark
2029	cf::emergency_save;	2885	cf::emergency_save;
		2886	cf::write_runtime; # external watchdog should not bark
2030		2887
2031	eval {	2888	warn "syncing database to disk";
		2889	BDB::db_env_txn_checkpoint $DB_ENV;
		2890
2032	# if anything goes wrong in here, we should simply crash as we already saved	2891	# if anything goes wrong in here, we should simply crash as we already saved
2033		2892
2034	# cancel all watchers	2893	warn "cancelling all WF_AUTOCANCEL watchers";
2035	for (Event::all_watchers) {	2894	for (Event::all_watchers) {
2036	$_->cancel if $_->data & WF_AUTOCANCEL;	2895	$_->cancel if $_->data & WF_AUTOCANCEL;
2037	}	2896	}
2038		2897
		2898	warn "flushing outstanding aio requests";
		2899	for (;;) {
		2900	BDB::flush;
		2901	IO::AIO::flush;
		2902	Coro::cede;
		2903	last unless IO::AIO::nreqs || BDB::nreqs;
		2904	warn "iterate...";
		2905	}
		2906
		2907	++$RELOAD;
		2908
2039	# cancel all extension coros	2909	warn "cancelling all extension coros";
2040	$_->cancel for values %EXT_CORO;	2910	$_->cancel for values %EXT_CORO;
2041	%EXT_CORO = ();	2911	%EXT_CORO = ();
2042		2912
2043	# unload all extensions	2913	warn "removing commands";
2044	for (@exts) {	2914	%COMMAND = ();
		2915
		2916	warn "removing ext/exti commands";
		2917	%EXTCMD = ();
		2918	%EXTICMD = ();
		2919
		2920	warn "unloading/nuking all extensions";
		2921	for my $pkg (@EXTS) {
2045	warn "unloading <$_>";	2922	warn "... unloading $pkg";
2046	unload_extension $_;	2923
		2924	if (my $cb = $pkg->can ("unload")) {
		2925	eval {
		2926	$cb->($pkg);
		2927	1
		2928	} or warn "$pkg unloaded, but with errors: $@";
2047	}	2929	}
2048		2930
		2931	warn "... nuking $pkg";
		2932	Symbol::delete_package $pkg;
		2933	}
		2934
2049	# unload all modules loaded from $LIBDIR	2935	warn "unloading all perl modules loaded from $LIBDIR";
2050	while (my ($k, $v) = each %INC) {	2936	while (my ($k, $v) = each %INC) {
2051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2937	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2052		2938
2053	warn "removing <$k>";	2939	warn "... unloading $k";
2054	delete $INC{$k};	2940	delete $INC{$k};
2055		2941
2056	$k =~ s/\.pm$//;	2942	$k =~ s/\.pm$//;
2057	$k =~ s/\//::/g;	2943	$k =~ s/\//::/g;
2058		2944
…		…
2061	}	2947	}
2062		2948
2063	Symbol::delete_package $k;	2949	Symbol::delete_package $k;
2064	}	2950	}
2065		2951
2066	# sync database to disk
2067	cf::db_sync;
2068	IO::AIO::flush;
2069
2070	# get rid of safe::, as good as possible	2952	warn "getting rid of safe::, as good as possible";
2071	Symbol::delete_package "safe::$_"	2953	Symbol::delete_package "safe::$_"
2072	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2954	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2073		2955
2074	# remove register_script_function callbacks
2075	# TODO
2076
2077	# unload cf.pm "a bit"	2956	warn "unloading cf.pm \"a bit\"";
2078	delete $INC{"cf.pm"};	2957	delete $INC{"cf.pm"};
		2958	delete $INC{"cf/pod.pm"};
2079		2959
2080	# don't, removes xs symbols, too,	2960	# don't, removes xs symbols, too,
2081	# and global variables created in xs	2961	# and global variables created in xs
2082	#Symbol::delete_package __PACKAGE__;	2962	#Symbol::delete_package __PACKAGE__;
2083		2963
2084	# reload cf.pm	2964	warn "unload completed, starting to reload now";
		2965
2085	warn "reloading cf.pm";	2966	warn "reloading cf.pm";
2086	require cf;	2967	require cf;
2087	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2968	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2088		2969
2089	# load config and database again	2970	warn "loading config and database again";
2090	cf::cfg_load;	2971	cf::cfg_load;
2091	cf::db_load;
2092		2972
2093	# load extensions
2094	warn "load extensions";	2973	warn "loading extensions";
2095	cf::load_extensions;	2974	cf::load_extensions;
2096		2975
2097	# reattach attachments to objects	2976	warn "reattaching attachments to objects/players";
2098	warn "reattach";	2977	_global_reattach; # objects, sockets
2099	_global_reattach;	2978	warn "reattaching attachments to maps";
2100	};	2979	reattach $_ for values %MAP;
		2980	warn "reattaching attachments to players";
		2981	reattach $_ for values %PLAYER;
2101		2982
2102	if ($@) {	2983	warn "leaving sync_job";
		2984
		2985	1
		2986	} or do {
2103	warn $@;	2987	warn $@;
2104	warn "error while reloading, exiting.";	2988	warn "error while reloading, exiting.";
2105	exit 1;	2989	exit 1;
2106	}	2990	};
2107		2991
2108	warn "reloaded successfully";	2992	warn "reloaded";
2109	};	2993	};
2110		2994
2111	#############################################################################	2995	our $RELOAD_WATCHER; # used only during reload
2112		2996
2113	unless ($LINK_MAP) {	2997	sub reload_perl() {
2114	$LINK_MAP = cf::map::new;	2998	# doing reload synchronously and two reloads happen back-to-back,
		2999	# coro crashes during coro_state_free->destroy here.
2115		3000
2116	$LINK_MAP->width (41);	3001	$RELOAD_WATCHER ||= Event->timer (
2117	$LINK_MAP->height (41);	3002	reentrant => 0,
2118	$LINK_MAP->alloc;
2119	$LINK_MAP->path ("{link}");
2120	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2121	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2122
2123	# dirty hack because... archetypes are not yet loaded
2124	Event->timer (
2125	after => 2,	3003	after => 0,
		3004	data => WF_AUTOCANCEL,
2126	cb => sub {	3005	cb => sub {
2127	$_[0]->w->cancel;	3006	do_reload_perl;
2128		3007	undef $RELOAD_WATCHER;
2129	# provide some exits "home"
2130	my $exit = cf::object::new "exit";
2131
2132	$exit->slaying ($EMERGENCY_POSITION->[0]);
2133	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2134	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2135
2136	$LINK_MAP->insert ($exit->clone, 19, 19);
2137	$LINK_MAP->insert ($exit->clone, 19, 20);
2138	$LINK_MAP->insert ($exit->clone, 19, 21);
2139	$LINK_MAP->insert ($exit->clone, 20, 19);
2140	$LINK_MAP->insert ($exit->clone, 20, 21);
2141	$LINK_MAP->insert ($exit->clone, 21, 19);
2142	$LINK_MAP->insert ($exit->clone, 21, 20);
2143	$LINK_MAP->insert ($exit->clone, 21, 21);
2144
2145	$exit->destroy;
2146	});	3008	},
2147		3009	);
2148	$LINK_MAP->{deny_save} = 1;
2149	$LINK_MAP->{deny_reset} = 1;
2150
2151	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2152	}	3010	}
2153
2154	register "<global>", __PACKAGE__;
2155		3011
2156	register_command "reload" => sub {	3012	register_command "reload" => sub {
2157	my ($who, $arg) = @_;	3013	my ($who, $arg) = @_;
2158		3014
2159	if ($who->flag (FLAG_WIZ)) {	3015	if ($who->flag (FLAG_WIZ)) {
2160	$who->message ("start of reload.");
2161	reload;
2162	$who->message ("end of reload.");	3016	$who->message ("reloading server.");
		3017	async { reload_perl };
2163	}	3018	}
2164	};	3019	};
2165		3020
2166	unshift @INC, $LIBDIR;	3021	unshift @INC, $LIBDIR;
2167		3022
		3023	my $bug_warning = 0;
		3024
		3025	our @WAIT_FOR_TICK;
		3026	our @WAIT_FOR_TICK_BEGIN;
		3027
		3028	sub wait_for_tick {
		3029	return unless $TICK_WATCHER->is_active;
		3030	return if $Coro::current == $Coro::main;
		3031
		3032	my $signal = new Coro::Signal;
		3033	push @WAIT_FOR_TICK, $signal;
		3034	$signal->wait;
		3035	}
		3036
		3037	sub wait_for_tick_begin {
		3038	return unless $TICK_WATCHER->is_active;
		3039	return if $Coro::current == $Coro::main;
		3040
		3041	my $signal = new Coro::Signal;
		3042	push @WAIT_FOR_TICK_BEGIN, $signal;
		3043	$signal->wait;
		3044	}
		3045
		3046	my $min = 1e6;#d#
		3047	my $avg = 10;
2168	$TICK_WATCHER = Event->timer (	3048	$TICK_WATCHER = Event->timer (
2169	reentrant => 0,	3049	reentrant => 0,
		3050	parked => 1,
2170	prio => 0,	3051	prio => 0,
2171	at => $NEXT_TICK || $TICK,	3052	at => $NEXT_TICK || $TICK,
2172	data => WF_AUTOCANCEL,	3053	data => WF_AUTOCANCEL,
2173	cb => sub {	3054	cb => sub {
		3055	if ($Coro::current != $Coro::main) {
		3056	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3057	unless ++$bug_warning > 10;
		3058	return;
		3059	}
		3060
		3061	$NOW = $tick_start = Event::time;
		3062
2174	cf::server_tick; # one server iteration	3063	cf::server_tick; # one server iteration
		3064
		3065	0 && sync_job {#d#
		3066	for(1..10) {
		3067	my $t = Event::time;
		3068	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3069	or die;
		3070
		3071	$map->width (50);
		3072	$map->height (50);
		3073	$map->alloc;
		3074	$map->_load_objects ("/tmp/x.map", 1);
		3075	my $t = Event::time - $t;
		3076
		3077	#next unless $t < 0.0013;#d#
		3078	if ($t < $min) {
		3079	$min = $t;
		3080	}
		3081	$avg = $avg * 0.99 + $t * 0.01;
		3082	}
		3083	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3084	exit 0;
		3085	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3086	};
		3087
2175	$RUNTIME += $TICK;	3088	$RUNTIME += $TICK;
2176	$NEXT_TICK += $TICK;	3089	$NEXT_TICK += $TICK;
2177		3090
		3091	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3092	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3093	Coro::async_pool {
		3094	write_runtime
		3095	or warn "ERROR: unable to write runtime file: $!";
		3096	};
		3097	}
		3098
		3099	# my $AFTER = Event::time;
		3100	# warn $AFTER - $NOW;#d#
		3101
		3102	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3103	$sig->send;
		3104	}
		3105	while (my $sig = shift @WAIT_FOR_TICK) {
		3106	$sig->send;
		3107	}
		3108
		3109	$NOW = Event::time;
		3110
2178	# if we are delayed by four ticks or more, skip them all	3111	# if we are delayed by four ticks or more, skip them all
2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3112	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2180		3113
2181	$TICK_WATCHER->at ($NEXT_TICK);	3114	$TICK_WATCHER->at ($NEXT_TICK);
2182	$TICK_WATCHER->start;	3115	$TICK_WATCHER->start;
		3116
		3117	$LOAD = ($NOW - $tick_start) / $TICK;
		3118	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3119
		3120	_post_tick;
		3121
		3122
2183	},	3123	},
2184	);	3124	);
2185		3125
		3126	{
2186	IO::AIO::max_poll_time $TICK * 0.2;	3127	BDB::max_poll_time $TICK * 0.1;
2187		3128	$BDB_POLL_WATCHER = Event->io (
2188	Event->io (	3129	reentrant => 0,
2189	fd => IO::AIO::poll_fileno,	3130	fd => BDB::poll_fileno,
2190	poll => 'r',	3131	poll => 'r',
2191	prio => 5,	3132	prio => 0,
2192	data => WF_AUTOCANCEL,
2193	cb => \&IO::AIO::poll_cb,
2194	);
2195
2196	Event->timer (
2197	data => WF_AUTOCANCEL,	3133	data => WF_AUTOCANCEL,
2198	after => 0,	3134	cb => \&BDB::poll_cb,
2199	interval => 10,	3135	);
2200	cb => sub {	3136	BDB::min_parallel 8;
2201	(Coro::unblock_sub {	3137
2202	write_runtime	3138	BDB::set_sync_prepare {
2203	or warn "ERROR: unable to write runtime file: $!";	3139	my $status;
		3140	my $current = $Coro::current;
		3141	(
		3142	sub {
		3143	$status = $!;
		3144	$current->ready; undef $current;
		3145	},
		3146	sub {
		3147	Coro::schedule while defined $current;
		3148	$! = $status;
		3149	},
		3150	)
		3151	};
		3152
		3153	unless ($DB_ENV) {
		3154	$DB_ENV = BDB::db_env_create;
		3155
		3156	cf::sync_job {
		3157	eval {
		3158	BDB::db_env_open
		3159	$DB_ENV,
		3160	$BDBDIR,
		3161	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3162	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3163	0666;
		3164
		3165	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3166
		3167	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3168	$DB_ENV->set_lk_detect;
		3169	};
		3170
		3171	cf::cleanup "db_env_open(db): $@" if $@;
2204	})->();	3172	};
2205	},	3173	}
2206	);	3174	}
		3175
		3176	{
		3177	IO::AIO::min_parallel 8;
		3178
		3179	undef $Coro::AIO::WATCHER;
		3180	IO::AIO::max_poll_time $TICK * 0.1;
		3181	$AIO_POLL_WATCHER = Event->io (
		3182	reentrant => 0,
		3183	data => WF_AUTOCANCEL,
		3184	fd => IO::AIO::poll_fileno,
		3185	poll => 'r',
		3186	prio => 6,
		3187	cb => \&IO::AIO::poll_cb,
		3188	);
		3189	}
		3190
		3191	my $_log_backtrace;
		3192
		3193	sub _log_backtrace {
		3194	my ($msg, @addr) = @_;
		3195
		3196	$msg =~ s/\n//;
		3197
		3198	# limit the # of concurrent backtraces
		3199	if ($_log_backtrace < 2) {
		3200	++$_log_backtrace;
		3201	async {
		3202	my @bt = fork_call {
		3203	@addr = map { sprintf "%x", $_ } @addr;
		3204	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3205	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3206	or die "addr2line: $!";
		3207
		3208	my @funcs;
		3209	my @res = <$fh>;
		3210	chomp for @res;
		3211	while (@res) {
		3212	my ($func, $line) = splice @res, 0, 2, ();
		3213	push @funcs, "[$func] $line";
		3214	}
		3215
		3216	@funcs
		3217	};
		3218
		3219	LOG llevInfo, "[ABT] $msg\n";
		3220	LOG llevInfo, "[ABT] $_\n" for @bt;
		3221	--$_log_backtrace;
		3222	};
		3223	} else {
		3224	LOG llevInfo, "[ABT] $msg\n";
		3225	LOG llevInfo, "[ABT] [suppressed]\n";
		3226	}
		3227	}
		3228
		3229	# load additional modules
		3230	use cf::pod;
2207		3231
2208	END { cf::emergency_save }	3232	END { cf::emergency_save }
2209		3233
2210	1	3234	1
2211		3235

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