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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 1.297 by root, Thu Jul 5 08:10:30 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->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) = @_;
…		…
920	cf::override;	1086	cf::override;
921	},	1087	},
922	on_extcmd => sub {	1088	on_extcmd => sub {
923	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
924		1090
925	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($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<([^\>]*)>}
		1406	{
		1407	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1408	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1409	"")
		1410	[$self->{hintmode}]
		1411	}ge;
		1412
		1413	# create single paragraphs (very hackish)
		1414	s/(?<=\S)\n(?=\w)/ /g;
		1415
		1416	# compress some whitespace
		1417	s/\s+\n/\n/g; # ws line-ends
		1418	s/\n\n+/\n/g; # double lines
		1419	s/^\n+//; # beginning lines
		1420	s/\n+$//; # ending lines
		1421
		1422	$_
		1423	}
		1424
		1425	sub hintmode {
		1426	$_[0]{hintmode} = $_[1] if @_ > 1;
		1427	$_[0]{hintmode}
		1428	}
		1429
		1430	=item $player->ext_reply ($msgid, %msg)
		1431
		1432	Sends an ext reply to the player.
		1433
		1434	=cut
		1435
		1436	sub ext_reply($$%) {
		1437	my ($self, $id, %msg) = @_;
		1438
		1439	$msg{msgid} = $id;
		1440	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1441	}
		1442
		1443	=item $player->ext_event ($type, %msg)
		1444
		1445	Sends an ext event to the client.
		1446
		1447	=cut
		1448
		1449	sub ext_event($$%) {
		1450	my ($self, $type, %msg) = @_;
		1451
		1452	$self->ns->ext_event ($type, %msg);
		1453	}
		1454
		1455	=head3 cf::region
		1456
		1457	=over 4
		1458
		1459	=cut
		1460
		1461	package cf::region;
		1462
		1463	=item cf::region::find_by_path $path
		1464
		1465	Tries to decuce the likely region for a map knowing only its path.
		1466
		1467	=cut
		1468
		1469	sub find_by_path($) {
948	my ($path) = @_;	1470	my ($path) = @_;
949		1471
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1472	my ($match, $specificity);
951	my $base = $1;
952	my $pkg = $1;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955		1473
956	warn "loading '$path' into '$pkg'\n";	1474	for my $region (list) {
957		1475	if ($region->match && $path =~ $region->match) {
958	open my $fh, "<:utf8", $path	1476	($match, $specificity) = ($region, $region->specificity)
959	or die "$path: $!";	1477	if $region->specificity > $specificity;
960		1478	}
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	# }	1479	}
990		1480
991	# remove commands	1481	$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	}	1482	}
1097		1483
1098	=back	1484	=back
1099
1100		1485
1101	=head3 cf::map	1486	=head3 cf::map
1102		1487
1103	=over 4	1488	=over 4
1104		1489
…		…
1107	package cf::map;	1492	package cf::map;
1108		1493
1109	use Fcntl;	1494	use Fcntl;
1110	use Coro::AIO;	1495	use Coro::AIO;
1111		1496
		1497	use overload
		1498	'""' => \&as_string,
		1499	fallback => 1;
		1500
1112	our $MAX_RESET = 3600;	1501	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1502	our $DEFAULT_RESET = 3000;
1114		1503
1115	sub generate_random_map {	1504	sub generate_random_map {
1116	my ($path, $rmp) = @_;	1505	my ($self, $rmp) = @_;
1117
1118	# mit "rum" bekleckern, nicht	1506	# mit "rum" bekleckern, nicht
1119	cf::map::_create_random_map	1507	$self->_create_random_map (
1120	$path,
1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1508	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1509	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1510	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1124	$rmp->{exit_on_final_map},	1511	$rmp->{exit_on_final_map},
1125	$rmp->{xsize}, $rmp->{ysize},	1512	$rmp->{xsize}, $rmp->{ysize},
1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1513	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1514	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1515	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1129	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1516	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1517	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1131	(cf::region::find $rmp->{region})	1518	(cf::region::find $rmp->{region}), $rmp->{custom}
		1519	)
		1520	}
		1521
		1522	=item cf::map->register ($regex, $prio)
		1523
		1524	Register a handler for the map path matching the given regex at the
		1525	givne priority (higher is better, built-in handlers have priority 0, the
		1526	default).
		1527
		1528	=cut
		1529
		1530	sub register {
		1531	my (undef, $regex, $prio) = @_;
		1532	my $pkg = caller;
		1533
		1534	no strict;
		1535	push @{"$pkg\::ISA"}, __PACKAGE__;
		1536
		1537	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1538	}
		1539
		1540	# also paths starting with '/'
		1541	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1542
		1543	sub thawer_merge {
		1544	my ($self, $merge) = @_;
		1545
		1546	# we have to keep some variables in memory intact
		1547	local $self->{path};
		1548	local $self->{load_path};
		1549
		1550	$self->SUPER::thawer_merge ($merge);
		1551	}
		1552
		1553	sub normalise {
		1554	my ($path, $base) = @_;
		1555
		1556	$path = "$path"; # make sure its a string
		1557
		1558	$path =~ s/\.map$//;
		1559
		1560	# map plan:
		1561	#
		1562	# /! non-realised random map exit (special hack!)
		1563	# {... are special paths that are not being touched
		1564	# ?xxx/... are special absolute paths
		1565	# ?random/... random maps
		1566	# /... normal maps
		1567	# ~user/... per-player map of a specific user
		1568
		1569	$path =~ s/$PATH_SEP/\//go;
		1570
		1571	# treat it as relative path if it starts with
		1572	# something that looks reasonable
		1573	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1574	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1575
		1576	$base =~ s{[^/]+/?$}{};
		1577	$path = "$base/$path";
		1578	}
		1579
		1580	for ($path) {
		1581	redo if s{//}{/};
		1582	redo if s{/\.?/}{/};
		1583	redo if s{/[^/]+/\.\./}{/};
		1584	}
		1585
		1586	$path
		1587	}
		1588
		1589	sub new_from_path {
		1590	my (undef, $path, $base) = @_;
		1591
		1592	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1593
		1594	$path = normalise $path, $base;
		1595
		1596	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1597	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1598	my $self = bless cf::map::new, $pkg;
		1599	$self->{path} = $path; $self->path ($path);
		1600	$self->init; # pass $1 etc.
		1601	return $self;
		1602	}
		1603	}
		1604
		1605	Carp::carp "unable to resolve path '$path' (base '$base').";
		1606	()
		1607	}
		1608
		1609	sub init {
		1610	my ($self) = @_;
		1611
		1612	$self
		1613	}
		1614
		1615	sub as_string {
		1616	my ($self) = @_;
		1617
		1618	"$self->{path}"
		1619	}
		1620
		1621	# the displayed name, this is a one way mapping
		1622	sub visible_name {
		1623	&as_string
		1624	}
		1625
		1626	# the original (read-only) location
		1627	sub load_path {
		1628	my ($self) = @_;
		1629
		1630	"$MAPDIR/$self->{path}.map"
		1631	}
		1632
		1633	# the temporary/swap location
		1634	sub save_path {
		1635	my ($self) = @_;
		1636
		1637	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1638	"$TMPDIR/$path.map"
		1639	}
		1640
		1641	# the unique path, undef == no special unique path
		1642	sub uniq_path {
		1643	my ($self) = @_;
		1644
		1645	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1646	"$UNIQUEDIR/$path"
1132	}	1647	}
1133		1648
1134	# and all this just because we cannot iterate over	1649	# and all this just because we cannot iterate over
1135	# all maps in C++...	1650	# all maps in C++...
1136	sub change_all_map_light {	1651	sub change_all_map_light {
…		…
1138		1653
1139	$_->change_map_light ($change)	1654	$_->change_map_light ($change)
1140	for grep $_->outdoor, values %cf::MAP;	1655	for grep $_->outdoor, values %cf::MAP;
1141	}	1656	}
1142		1657
		1658	sub decay_objects {
		1659	my ($self) = @_;
		1660
		1661	return if $self->{deny_reset};
		1662
		1663	$self->do_decay_objects;
		1664	}
		1665
		1666	sub unlink_save {
		1667	my ($self) = @_;
		1668
		1669	utf8::encode (my $save = $self->save_path);
		1670	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1671	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1672	}
		1673
1143	sub try_load_header($) {	1674	sub load_header_from($) {
1144	my ($path) = @_;	1675	my ($self, $path) = @_;
1145		1676
1146	utf8::encode $path;	1677	utf8::encode $path;
1147	aio_open $path, O_RDONLY, 0	1678	#aio_open $path, O_RDONLY, 0
		1679	# or return;
		1680
		1681	$self->_load_header ($path)
1148	or return;	1682	or return;
1149		1683
1150	my $map = cf::map::new	1684	$self->{load_path} = $path;
		1685
		1686	1
		1687	}
		1688
		1689	sub load_header_orig {
		1690	my ($self) = @_;
		1691
		1692	$self->load_header_from ($self->load_path)
		1693	}
		1694
		1695	sub load_header_temp {
		1696	my ($self) = @_;
		1697
		1698	$self->load_header_from ($self->save_path)
		1699	}
		1700
		1701	sub prepare_temp {
		1702	my ($self) = @_;
		1703
		1704	$self->last_access ((delete $self->{last_access})
		1705	|| $cf::RUNTIME); #d#
		1706	# safety
		1707	$self->{instantiate_time} = $cf::RUNTIME
		1708	if $self->{instantiate_time} > $cf::RUNTIME;
		1709	}
		1710
		1711	sub prepare_orig {
		1712	my ($self) = @_;
		1713
		1714	$self->{load_original} = 1;
		1715	$self->{instantiate_time} = $cf::RUNTIME;
		1716	$self->last_access ($cf::RUNTIME);
		1717	$self->instantiate;
		1718	}
		1719
		1720	sub load_header {
		1721	my ($self) = @_;
		1722
		1723	if ($self->load_header_temp) {
		1724	$self->prepare_temp;
		1725	} else {
		1726	$self->load_header_orig
1151	or return;	1727	or return;
		1728	$self->prepare_orig;
		1729	}
1152		1730
1153	# for better error messages only, will be overwritten	1731	$self->{deny_reset} = 1
1154	$map->path ($path);	1732	if $self->no_reset;
1155		1733
1156	$map->load_header ($path)	1734	$self->default_region (cf::region::find_by_path $self->{path})
1157	or return;	1735	unless $self->default_region;
1158		1736
1159	$map->{load_path} = $path;	1737	1
1160
1161	$map
1162	}	1738	}
1163		1739
1164	sub find;	1740	sub find;
1165	sub find {	1741	sub find {
1166	my ($path, $origin) = @_;	1742	my ($path, $origin) = @_;
1167		1743
1168	#warn "find<$path,$origin>\n";#d#
1169
1170	$path = new cf::path $path, $origin && $origin->path;	1744	$path = normalise $path, $origin && $origin->path;
1171	my $key = $path->as_string;
1172		1745
1173	cf::lock_wait "map_find:$key";	1746	cf::lock_wait "map_find:$path";
1174		1747
1175	$cf::MAP{$key} || do {	1748	$cf::MAP{$path} || do {
1176	my $guard = cf::lock_acquire "map_find:$key";	1749	my $guard = cf::lock_acquire "map_find:$path";
1177		1750	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;	1751	or return;
1197		1752
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;	1753	$map->{last_save} = $cf::RUNTIME;
1210		1754
1211	Coro::cede;	1755	$map->load_header
		1756	or return;
1212		1757
1213	if ($map->should_reset) {	1758	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1759	# doing this can freeze the server in a sync job, obviously
		1760	#$cf::WAIT_FOR_TICK->wait;
1214	$map->reset;	1761	$map->reset;
1215	undef $guard;	1762	undef $guard;
1216	$map = find $path	1763	return find $path;
1217	or return;
1218	}	1764	}
1219		1765
1220	$cf::MAP{$key} = $map	1766	$cf::MAP{$path} = $map
1221	}	1767	}
1222	}	1768	}
		1769
		1770	sub pre_load { }
		1771	sub post_load { }
1223		1772
1224	sub load {	1773	sub load {
1225	my ($self) = @_;	1774	my ($self) = @_;
1226		1775
		1776	local $self->{deny_reset} = 1; # loading can take a long time
		1777
1227	my $path = $self->{path};	1778	my $path = $self->{path};
		1779
		1780	{
1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1781	my $guard = cf::lock_acquire "map_load:$path";
1229		1782
1230	return if $self->in_memory != cf::MAP_SWAPPED;	1783	return if $self->in_memory != cf::MAP_SWAPPED;
1231		1784
1232	$self->in_memory (cf::MAP_LOADING);	1785	$self->in_memory (cf::MAP_LOADING);
1233		1786
1234	$self->alloc;	1787	$self->alloc;
		1788
		1789	$self->pre_load;
		1790	Coro::cede;
		1791
1235	$self->load_objects ($self->{load_path}, 1)	1792	$self->_load_objects ($self->{load_path}, 1)
1236	or return;	1793	or return;
1237		1794
1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1795	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1239	if delete $self->{load_original};	1796	if delete $self->{load_original};
1240		1797
1241	if (my $uniq = $path->uniq_path) {	1798	if (my $uniq = $self->uniq_path) {
1242	utf8::encode $uniq;	1799	utf8::encode $uniq;
1243	if (aio_open $uniq, O_RDONLY, 0) {	1800	if (aio_open $uniq, O_RDONLY, 0) {
1244	$self->clear_unique_items;	1801	$self->clear_unique_items;
1245	$self->load_objects ($uniq, 0);	1802	$self->_load_objects ($uniq, 0);
1246	}	1803	}
1247	}	1804	}
1248		1805
1249	Coro::cede;	1806	Coro::cede;
1250
1251	# now do the right thing for maps	1807	# now do the right thing for maps
1252	$self->link_multipart_objects;	1808	$self->link_multipart_objects;
1253
1254	if ($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)	1809	$self->difficulty ($self->estimate_difficulty)
1263	unless $self->difficulty;	1810	unless $self->difficulty;
		1811	Coro::cede;
		1812
		1813	unless ($self->{deny_activate}) {
		1814	$self->decay_objects;
		1815	$self->fix_auto_apply;
		1816	$self->update_buttons;
		1817	Coro::cede;
		1818	$self->set_darkness_map;
		1819	Coro::cede;
1264	$self->activate;	1820	$self->activate;
1265	}	1821	}
1266		1822
1267	Coro::cede;
1268
1269	$self->in_memory (cf::MAP_IN_MEMORY);	1823	$self->in_memory (cf::MAP_IN_MEMORY);
		1824	}
		1825
		1826	$self->post_load;
		1827	}
		1828
		1829	sub customise_for {
		1830	my ($self, $ob) = @_;
		1831
		1832	return find "~" . $ob->name . "/" . $self->{path}
		1833	if $self->per_player;
		1834
		1835	# return find "?party/" . $ob->name . "/" . $self->{path}
		1836	# if $self->per_party;
		1837
		1838	$self
		1839	}
		1840
		1841	# find and load all maps in the 3x3 area around a map
		1842	sub load_diag {
		1843	my ($map) = @_;
		1844
		1845	my @diag; # diagonal neighbours
		1846
		1847	for (0 .. 3) {
		1848	my $neigh = $map->tile_path ($_)
		1849	or next;
		1850	$neigh = find $neigh, $map
		1851	or next;
		1852	$neigh->load;
		1853
		1854	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1855	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1856	}
		1857
		1858	for (@diag) {
		1859	my $neigh = find @$_
		1860	or next;
		1861	$neigh->load;
		1862	}
1270	}	1863	}
1271		1864
1272	sub find_sync {	1865	sub find_sync {
1273	my ($path, $origin) = @_;	1866	my ($path, $origin) = @_;
1274		1867
1275	cf::sync_job {	1868	cf::sync_job { find $path, $origin }
1276	my $map = cf::map::find $path, $origin;
1277	$map
1278	}
1279	}	1869	}
1280		1870
1281	sub do_load_sync {	1871	sub do_load_sync {
1282	my ($map) = @_;	1872	my ($map) = @_;
1283		1873
1284	cf::sync_job { $map->load };	1874	cf::sync_job { $map->load };
1285	}	1875	}
1286		1876
		1877	our %MAP_PREFETCH;
		1878	our $MAP_PREFETCHER = undef;
		1879
		1880	sub find_async {
		1881	my ($path, $origin) = @_;
		1882
		1883	$path = normalise $path, $origin && $origin->{path};
		1884
		1885	if (my $map = $cf::MAP{$path}) {
		1886	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1887	}
		1888
		1889	undef $MAP_PREFETCH{$path};
		1890	$MAP_PREFETCHER ||= cf::async {
		1891	while (%MAP_PREFETCH) {
		1892	for my $path (keys %MAP_PREFETCH) {
		1893	my $map = find $path
		1894	or next;
		1895	$map->load;
		1896
		1897	delete $MAP_PREFETCH{$path};
		1898	}
		1899	}
		1900	undef $MAP_PREFETCHER;
		1901	};
		1902	$MAP_PREFETCHER->prio (6);
		1903
		1904	()
		1905	}
		1906
1287	sub save {	1907	sub save {
1288	my ($self) = @_;	1908	my ($self) = @_;
1289		1909
1290	my $lock = cf::lock_acquire "map_data:" . $self->path;	1910	my $lock = cf::lock_acquire "map_data:" . $self->path;
1291		1911
1292	$self->{last_save} = $cf::RUNTIME;	1912	$self->{last_save} = $cf::RUNTIME;
1293		1913
1294	return unless $self->dirty;	1914	return unless $self->dirty;
1295		1915
1296	my $save = $self->{path}->save_path; utf8::encode $save;	1916	my $save = $self->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1917	my $uniq = $self->uniq_path; utf8::encode $uniq;
1298		1918
1299	$self->{load_path} = $save;	1919	$self->{load_path} = $save;
1300		1920
1301	return if $self->{deny_save};	1921	return if $self->{deny_save};
1302		1922
1303	local $self->{last_access} = $self->last_access;#d#	1923	local $self->{last_access} = $self->last_access;#d#
1304		1924
		1925	cf::async {
		1926	$_->contr->save for $self->players;
		1927	};
		1928
1305	if ($uniq) {	1929	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1930	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);	1931	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {	1932	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1933	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}	1934	}
1311	}	1935	}
1312		1936
1313	sub swap_out {	1937	sub swap_out {
1314	my ($self) = @_;	1938	my ($self) = @_;
…		…
1328		1952
1329	sub reset_at {	1953	sub reset_at {
1330	my ($self) = @_;	1954	my ($self) = @_;
1331		1955
1332	# TODO: safety, remove and allow resettable per-player maps	1956	# TODO: safety, remove and allow resettable per-player maps
1333	return 1e99 if $self->{path}{user_rel};
1334	return 1e99 if $self->{deny_reset};	1957	return 1e99 if $self->{deny_reset};
1335		1958
1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1959	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1337	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1960	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1338		1961
…		…
1343	my ($self) = @_;	1966	my ($self) = @_;
1344		1967
1345	$self->reset_at <= $cf::RUNTIME	1968	$self->reset_at <= $cf::RUNTIME
1346	}	1969	}
1347		1970
1348	sub unlink_save {
1349	my ($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	$self->save;
1367	}
1368
1369	sub reset {	1971	sub reset {
1370	my ($self) = @_;	1972	my ($self) = @_;
1371		1973
1372	my $lock = cf::lock_acquire "map_data:" . $self->path;	1974	my $lock = cf::lock_acquire "map_data:$self->{path}";
1373		1975
1374	return if $self->players;	1976	return if $self->players;
1375	return if $self->{path}{user_rel};#d#
1376		1977
1377	warn "resetting map ", $self->path;#d#	1978	warn "resetting map ", $self->path;
		1979
		1980	$self->in_memory (cf::MAP_SWAPPED);
		1981
		1982	# need to save uniques path
		1983	unless ($self->{deny_save}) {
		1984	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1985
		1986	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1987	if $uniq;
		1988	}
1378		1989
1379	delete $cf::MAP{$self->path};	1990	delete $cf::MAP{$self->path};
		1991
		1992	$self->clear;
1380		1993
1381	$_->clear_links_to ($self) for values %cf::MAP;	1994	$_->clear_links_to ($self) for values %cf::MAP;
1382		1995
1383	$self->unlink_save;	1996	$self->unlink_save;
1384	$self->destroy;	1997	$self->destroy;
…		…
1387	my $nuke_counter = "aaaa";	2000	my $nuke_counter = "aaaa";
1388		2001
1389	sub nuke {	2002	sub nuke {
1390	my ($self) = @_;	2003	my ($self) = @_;
1391		2004
		2005	delete $cf::MAP{$self->path};
		2006
		2007	$self->unlink_save;
		2008
		2009	bless $self, "cf::map";
		2010	delete $self->{deny_reset};
1392	$self->{deny_save} = 1;	2011	$self->{deny_save} = 1;
1393	$self->reset_timeout (1);	2012	$self->reset_timeout (1);
1394	$self->rename ("{nuke}/" . ($nuke_counter++));	2013	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2014
		2015	$cf::MAP{$self->path} = $self;
		2016
1395	$self->reset; # polite request, might not happen	2017	$self->reset; # polite request, might not happen
1396	}	2018	}
1397		2019
1398	sub customise_for {	2020	=item $maps = cf::map::tmp_maps
1399	my ($map, $ob) = @_;
1400		2021
1401	if ($map->per_player) {	2022	Returns an arrayref with all map paths of currently instantiated and saved
1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2023	maps. May block.
		2024
		2025	=cut
		2026
		2027	sub tmp_maps() {
1403	}	2028	[
1404		2029	map {
1405	$map	2030	utf8::decode $_;
		2031	/\.map$/
		2032	? normalise $_
		2033	: ()
		2034	} @{ aio_readdir $TMPDIR or [] }
		2035	]
1406	}	2036	}
1407		2037
1408	sub emergency_save {	2038	=item $maps = cf::map::random_maps
1409	my $freeze_guard = cf::freeze_mainloop;
1410		2039
1411	warn "enter emergency map save\n";	2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	random maps. May block.
1412		2042
1413	cf::sync_job {	2043	=cut
1414	warn "begin emergency map save\n";
1415	$_->save for values %cf::MAP;
1416	};
1417		2044
1418	warn "end emergency map save\n";	2045	sub random_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise "?random/$_"
		2051	: ()
		2052	} @{ aio_readdir $RANDOMDIR or [] }
		2053	]
		2054	}
		2055
		2056	=item cf::map::unique_maps
		2057
		2058	Returns an arrayref of paths of all shared maps that have
		2059	instantiated unique items. May block.
		2060
		2061	=cut
		2062
		2063	sub unique_maps() {
		2064	[
		2065	map {
		2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise $_
		2069	: ()
		2070	} @{ aio_readdir $UNIQUEDIR or [] }
		2071	]
1419	}	2072	}
1420		2073
1421	package cf;	2074	package cf;
1422		2075
1423	=back	2076	=back
1424		2077
		2078	=head3 cf::object
		2079
		2080	=cut
		2081
		2082	package cf::object;
		2083
		2084	=over 4
		2085
		2086	=item $ob->inv_recursive
		2087
		2088	Returns the inventory of the object _and_ their inventories, recursively.
		2089
		2090	=cut
		2091
		2092	sub inv_recursive_;
		2093	sub inv_recursive_ {
		2094	map { $_, inv_recursive_ $_->inv } @_
		2095	}
		2096
		2097	sub inv_recursive {
		2098	inv_recursive_ inv $_[0]
		2099	}
		2100
		2101	package cf;
		2102
		2103	=back
1425		2104
1426	=head3 cf::object::player	2105	=head3 cf::object::player
1427		2106
1428	=over 4	2107	=over 4
1429		2108
…		…
1443		2122
1444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2123	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1445		2124
1446	if ($self->{record_replies}) {	2125	if ($self->{record_replies}) {
1447	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2126	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2127
1448	} else {	2128	} else {
		2129	my $pl = $self->contr;
		2130
		2131	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2132	my $diag = $pl->{npc_dialog};
		2133	$diag->{pl}->ext_reply (
		2134	$diag->{id},
		2135	msgtype => "reply",
		2136	msg => $diag->{pl}->expand_cfpod ($msg),
		2137	add_topics => []
		2138	);
		2139
		2140	} else {
1449	$msg = $npc->name . " says: $msg" if $npc;	2141	$msg = $npc->name . " says: $msg" if $npc;
1450	$self->message ($msg, $flags);	2142	$self->message ($msg, $flags);
		2143	}
1451	}	2144	}
1452	}	2145	}
1453		2146
1454	=item $player_object->may ("access")	2147	=item $player_object->may ("access")
1455		2148
…		…
1469		2162
1470	=item $player_object->enter_link	2163	=item $player_object->enter_link
1471		2164
1472	Freezes the player and moves him/her to a special map (C<{link}>).	2165	Freezes the player and moves him/her to a special map (C<{link}>).
1473		2166
1474	The player should be reaosnably safe there for short amounts of time. You	2167	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.	2168	I<MUST> call C<leave_link> as soon as possible, though.
1476		2169
		2170	Will never block.
		2171
1477	=item $player_object->leave_link ($map, $x, $y)	2172	=item $player_object->leave_link ($map, $x, $y)
1478		2173
1479	Moves the player out of the specila link map onto the given map. If the	2174	Moves the player out of the special C<{link}> map onto the specified
1480	map is not valid (or omitted), the player will be moved back to the	2175	map. If the map is not valid (or omitted), the player will be moved back
1481	location he/she was before the call to C<enter_link>, or, if that fails,	2176	to the location he/she was before the call to C<enter_link>, or, if that
1482	to the emergency map position.	2177	fails, to the emergency map position.
1483		2178
1484	Might block.	2179	Might block.
1485		2180
1486	=cut	2181	=cut
		2182
		2183	sub link_map {
		2184	unless ($LINK_MAP) {
		2185	$LINK_MAP = cf::map::find "{link}"
		2186	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2187	$LINK_MAP->load;
		2188	}
		2189
		2190	$LINK_MAP
		2191	}
1487		2192
1488	sub cf::object::player::enter_link {	2193	sub cf::object::player::enter_link {
1489	my ($self) = @_;	2194	my ($self) = @_;
1490		2195
1491	$self->deactivate_recursive;	2196	$self->deactivate_recursive;
1492		2197
1493	return if $self->map == $LINK_MAP;	2198	return if UNIVERSAL::isa $self->map, "ext::map_link";
1494		2199
1495	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2200	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1496	if $self->map;	2201	if $self->map && $self->map->{path} ne "{link}";
1497		2202
1498	$self->enter_map ($LINK_MAP, 20, 20);	2203	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1499	}	2204	}
1500		2205
1501	sub cf::object::player::leave_link {	2206	sub cf::object::player::leave_link {
1502	my ($self, $map, $x, $y) = @_;	2207	my ($self, $map, $x, $y) = @_;
		2208
		2209	return unless $self->contr->active;
1503		2210
1504	my $link_pos = delete $self->{_link_pos};	2211	my $link_pos = delete $self->{_link_pos};
1505		2212
1506	unless ($map) {	2213	unless ($map) {
1507	# restore original map position	2214	# restore original map position
…		…
1521	# use -1 or undef as default coordinates, not 0, 0	2228	# use -1 or undef as default coordinates, not 0, 0
1522	($x, $y) = ($map->enter_x, $map->enter_y)	2229	($x, $y) = ($map->enter_x, $map->enter_y)
1523	if $x <=0 && $y <= 0;	2230	if $x <=0 && $y <= 0;
1524		2231
1525	$map->load;	2232	$map->load;
		2233	$map->load_diag;
1526		2234
		2235	return unless $self->contr->active;
1527	$self->activate_recursive;	2236	$self->activate_recursive;
		2237
		2238	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1528	$self->enter_map ($map, $x, $y);	2239	$self->enter_map ($map, $x, $y);
1529	}	2240	}
1530		2241
1531	cf::player->attach (
1532	on_logout => sub {
1533	my ($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)	2242	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1561		2243
		2244	Moves the player to the given map-path and coordinates by first freezing
		2245	her, loading and preparing them map, calling the provided $check callback
		2246	that has to return the map if sucecssful, and then unfreezes the player on
		2247	the new (success) or old (failed) map position.
		2248
1562	=cut	2249	=cut
		2250
		2251	our $GOTOGEN;
1563		2252
1564	sub cf::object::player::goto {	2253	sub cf::object::player::goto {
1565	my ($self, $path, $x, $y) = @_;	2254	my ($self, $path, $x, $y, $check) = @_;
		2255
		2256	# do generation counting so two concurrent goto's will be executed in-order
		2257	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1566		2258
1567	$self->enter_link;	2259	$self->enter_link;
1568		2260
1569	(Coro::async_pool {	2261	(async {
1570	$path = new cf::path $path;	2262	my $map = eval {
1571
1572	my $map = cf::map::find $path->as_string;	2263	my $map = cf::map::find $path;
		2264
		2265	if ($map) {
1573	$map = $map->customise_for ($self) if $map;	2266	$map = $map->customise_for ($self);
1574		2267	$map = $check->($map) if $check && $map;
1575	# warn "entering ", $map->path, " at ($x, $y)\n"	2268	} else {
1576	# if $map;
1577
1578	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2269	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2270	}
1579		2271
		2272	$map
		2273	};
		2274
		2275	if ($@) {
		2276	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2277	LOG llevError | logBacktrace, Carp::longmess $@;
		2278	}
		2279
		2280	if ($gen == $self->{_goto_generation}) {
		2281	delete $self->{_goto_generation};
1580	$self->leave_link ($map, $x, $y);	2282	$self->leave_link ($map, $x, $y);
		2283	}
1581	})->prio (1);	2284	})->prio (1);
1582	}	2285	}
1583		2286
1584	=item $player_object->enter_exit ($exit_object)	2287	=item $player_object->enter_exit ($exit_object)
1585		2288
…		…
1587		2290
1588	sub parse_random_map_params {	2291	sub parse_random_map_params {
1589	my ($spec) = @_;	2292	my ($spec) = @_;
1590		2293
1591	my $rmp = { # defaults	2294	my $rmp = { # defaults
1592	xsize => 10,	2295	xsize => (cf::rndm 15, 40),
1593	ysize => 10,	2296	ysize => (cf::rndm 15, 40),
		2297	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2298	#layout => string,
1594	};	2299	};
1595		2300
1596	for (split /\n/, $spec) {	2301	for (split /\n/, $spec) {
1597	my ($k, $v) = split /\s+/, $_, 2;	2302	my ($k, $v) = split /\s+/, $_, 2;
1598		2303
…		…
1602	$rmp	2307	$rmp
1603	}	2308	}
1604		2309
1605	sub prepare_random_map {	2310	sub prepare_random_map {
1606	my ($exit) = @_;	2311	my ($exit) = @_;
		2312
		2313	my $guard = cf::lock_acquire "exit_prepare:$exit";
1607		2314
1608	# all this does is basically replace the /! path by	2315	# all this does is basically replace the /! path by
1609	# a new random map path (?random/...) with a seed	2316	# a new random map path (?random/...) with a seed
1610	# that depends on the exit object	2317	# that depends on the exit object
1611		2318
1612	my $rmp = parse_random_map_params $exit->msg;	2319	my $rmp = parse_random_map_params $exit->msg;
1613		2320
1614	if ($exit->map) {	2321	if ($exit->map) {
1615	$rmp->{region} = $exit->map->region_name;	2322	$rmp->{region} = $exit->region->name;
1616	$rmp->{origin_map} = $exit->map->path;	2323	$rmp->{origin_map} = $exit->map->path;
1617	$rmp->{origin_x} = $exit->x;	2324	$rmp->{origin_x} = $exit->x;
1618	$rmp->{origin_y} = $exit->y;	2325	$rmp->{origin_y} = $exit->y;
1619	}	2326	}
1620		2327
1621	$rmp->{random_seed} ||= $exit->random_seed;	2328	$rmp->{random_seed} ||= $exit->random_seed;
1622		2329
1623	my $data = cf::to_json $rmp;	2330	my $data = cf::to_json $rmp;
1624	my $md5 = Digest::MD5::md5_hex $data;	2331	my $md5 = Digest::MD5::md5_hex $data;
		2332	my $meta = "$RANDOMDIR/$md5.meta";
1625		2333
1626	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2334	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1627	aio_write $fh, 0, (length $data), $data, 0;	2335	aio_write $fh, 0, (length $data), $data, 0;
		2336	undef $fh;
		2337	aio_rename "$meta~", $meta;
1628		2338
1629	$exit->slaying ("?random/$md5");	2339	$exit->slaying ("?random/$md5");
1630	$exit->msg (undef);	2340	$exit->msg (undef);
1631	}	2341	}
1632	}	2342	}
…		…
1634	sub cf::object::player::enter_exit {	2344	sub cf::object::player::enter_exit {
1635	my ($self, $exit) = @_;	2345	my ($self, $exit) = @_;
1636		2346
1637	return unless $self->type == cf::PLAYER;	2347	return unless $self->type == cf::PLAYER;
1638		2348
		2349	if ($exit->slaying eq "/!") {
		2350	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2351	# the problem is that $exit might not survive long enough
		2352	# so it needs to be done right now, right here
		2353	cf::sync_job { prepare_random_map $exit };
		2354	}
		2355
		2356	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2357	my $hp = $exit->stats->hp;
		2358	my $sp = $exit->stats->sp;
		2359
1639	$self->enter_link;	2360	$self->enter_link;
1640		2361
1641	(Coro::async_pool {	2362	# if exit is damned, update players death & WoR home-position
		2363	$self->contr->savebed ($slaying, $hp, $sp)
		2364	if $exit->flag (FLAG_DAMNED);
		2365
		2366	(async {
1642	$self->deactivate_recursive; # just to be sure	2367	$self->deactivate_recursive; # just to be sure
1643	unless (eval {	2368	unless (eval {
1644	prepare_random_map $exit	2369	$self->goto ($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		2370
1650	1;	2371	1;
1651	}) {	2372	}) {
1652	$self->message ("Something went wrong deep within the crossfire server. "	2373	$self->message ("Something went wrong deep within the crossfire server. "
1653	. "I'll try to bring you back to the map you were before. "	2374	. "I'll try to bring you back to the map you were before. "
1654	. "Please report this to the dungeon master",	2375	. "Please report this to the dungeon master!",
1655	cf::NDI_UNIQUE | cf::NDI_RED);	2376	cf::NDI_UNIQUE | cf::NDI_RED);
1656		2377
1657	warn "ERROR in enter_exit: $@";	2378	warn "ERROR in enter_exit: $@";
1658	$self->leave_link;	2379	$self->leave_link;
1659	}	2380	}
1660	})->prio (1);	2381	})->prio (1);
…		…
1673		2394
1674	sub cf::client::send_drawinfo {	2395	sub cf::client::send_drawinfo {
1675	my ($self, $text, $flags) = @_;	2396	my ($self, $text, $flags) = @_;
1676		2397
1677	utf8::encode $text;	2398	utf8::encode $text;
1678	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2399	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1679	}	2400	}
1680		2401
		2402	=item $client->send_msg ($color, $type, $msg, [extra...])
		2403
		2404	Send a drawinfo or msg packet to the client, formatting the msg for the
		2405	client if neccessary. C<$type> should be a string identifying the type of
		2406	the message, with C<log> being the default. If C<$color> is negative, suppress
		2407	the message unless the client supports the msg packet.
		2408
		2409	=cut
		2410
		2411	sub cf::client::send_msg {
		2412	my ($self, $color, $type, $msg, @extra) = @_;
		2413
		2414	$msg = $self->pl->expand_cfpod ($msg);
		2415
		2416	return unless @extra || length $msg;
		2417
		2418	if ($self->can_msg) {
		2419	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2420	} else {
		2421	# replace some tags by gcfclient-compatible ones
		2422	for ($msg) {
		2423	1 while
		2424	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2425	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2426	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2427	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2428	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2429	}
		2430
		2431	if ($color >= 0) {
		2432	if (0 && $msg =~ /\[/) {
		2433	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2434	} else {
		2435	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2436	$self->send_packet ("drawinfo $color $msg")
		2437	}
		2438	}
		2439	}
		2440	}
		2441
		2442	=item $client->ext_event ($type, %msg)
		2443
		2444	Sends an ext event to the client.
		2445
		2446	=cut
		2447
		2448	sub cf::client::ext_event($$%) {
		2449	my ($self, $type, %msg) = @_;
		2450
		2451	$msg{msgtype} = "event_$type";
		2452	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2453	}
1681		2454
1682	=item $success = $client->query ($flags, "text", \&cb)	2455	=item $success = $client->query ($flags, "text", \&cb)
1683		2456
1684	Queues a query to the client, calling the given callback with	2457	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>,	2458	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>.	2459	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1687		2460
1688	Queries can fail, so check the return code. Or don't, as queries will become	2461	Queries can fail, so check the return code. Or don't, as queries will
1689	reliable at some point in the future.	2462	become reliable at some point in the future.
1690		2463
1691	=cut	2464	=cut
1692		2465
1693	sub cf::client::query {	2466	sub cf::client::query {
1694	my ($self, $flags, $text, $cb) = @_;	2467	my ($self, $flags, $text, $cb) = @_;
…		…
1702	utf8::encode $text;	2475	utf8::encode $text;
1703	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2476	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1704		2477
1705	$self->send_packet ($self->{query_queue}[0][0])	2478	$self->send_packet ($self->{query_queue}[0][0])
1706	if @{ $self->{query_queue} } == 1;	2479	if @{ $self->{query_queue} } == 1;
		2480
		2481	1
1707	}	2482	}
1708		2483
1709	cf::client->attach (	2484	cf::client->attach (
		2485	on_connect => sub {
		2486	my ($ns) = @_;
		2487
		2488	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2489	},
1710	on_reply => sub {	2490	on_reply => sub {
1711	my ($ns, $msg) = @_;	2491	my ($ns, $msg) = @_;
1712		2492
1713	# this weird shuffling is so that direct followup queries	2493	# this weird shuffling is so that direct followup queries
1714	# get handled first	2494	# get handled first
1715	my $queue = delete $ns->{query_queue}	2495	my $queue = delete $ns->{query_queue}
1716	or return; # be conservative, not sure how that can happen, but we saw a crash here	2496	or return; # be conservative, not sure how that can happen, but we saw a crash here
1717		2497
1718	(shift @$queue)->[1]->($msg);	2498	(shift @$queue)->[1]->($msg);
		2499	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1719		2500
1720	push @{ $ns->{query_queue} }, @$queue;	2501	push @{ $ns->{query_queue} }, @$queue;
1721		2502
1722	if (@{ $ns->{query_queue} } == @$queue) {	2503	if (@{ $ns->{query_queue} } == @$queue) {
1723	if (@$queue) {	2504	if (@$queue) {
…		…
1725	} else {	2506	} else {
1726	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2507	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1727	}	2508	}
1728	}	2509	}
1729	},	2510	},
		2511	on_exticmd => sub {
		2512	my ($ns, $buf) = @_;
		2513
		2514	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2515
		2516	if (ref $msg) {
		2517	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2518	if (my %reply = $cb->($ns, $msg)) {
		2519	$reply{msgid} = $msg->{msgid};
		2520	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2521	}
		2522	}
		2523	} else {
		2524	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2525	}
		2526
		2527	cf::override;
		2528	},
1730	);	2529	);
1731		2530
1732	=item $client->coro (\&cb)	2531	=item $client->async (\&cb)
1733		2532
1734	Create a new coroutine, running the specified callback. The coroutine will	2533	Create a new coroutine, running the specified callback. The coroutine will
1735	be automatically cancelled when the client gets destroyed (e.g. on logout,	2534	be automatically cancelled when the client gets destroyed (e.g. on logout,
1736	or loss of connection).	2535	or loss of connection).
1737		2536
1738	=cut	2537	=cut
1739		2538
1740	sub cf::client::coro {	2539	sub cf::client::async {
1741	my ($self, $cb) = @_;	2540	my ($self, $cb) = @_;
1742		2541
1743	my $coro = &Coro::async_pool ($cb);	2542	my $coro = &Coro::async ($cb);
1744		2543
1745	$coro->on_destroy (sub {	2544	$coro->on_destroy (sub {
1746	delete $self->{_coro}{$coro+0};	2545	delete $self->{_coro}{$coro+0};
1747	});	2546	});
1748		2547
…		…
1781		2580
1782	# here we export the classes and methods available to script code	2581	# here we export the classes and methods available to script code
1783		2582
1784	=pod	2583	=pod
1785		2584
1786	The following fucntions and emthods are available within a safe environment:	2585	The following functions and methods are available within a safe environment:
1787		2586
1788	cf::object contr pay_amount pay_player map	2587	cf::object
		2588	contr pay_amount pay_player map x y force_find force_add
		2589	insert remove
		2590
1789	cf::object::player player	2591	cf::object::player
1790	cf::player peaceful	2592	player
1791	cf::map trigger	2593
		2594	cf::player
		2595	peaceful
		2596
		2597	cf::map
		2598	trigger
1792		2599
1793	=cut	2600	=cut
1794		2601
1795	for (	2602	for (
1796	["cf::object" => qw(contr pay_amount pay_player map)],	2603	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2604	insert remove)],
1797	["cf::object::player" => qw(player)],	2605	["cf::object::player" => qw(player)],
1798	["cf::player" => qw(peaceful)],	2606	["cf::player" => qw(peaceful)],
1799	["cf::map" => qw(trigger)],	2607	["cf::map" => qw(trigger)],
1800	) {	2608	) {
1801	no strict 'refs';	2609	no strict 'refs';
…		…
1872	=back	2680	=back
1873		2681
1874	=cut	2682	=cut
1875		2683
1876	#############################################################################	2684	#############################################################################
		2685	# the server's init and main functions
1877		2686
1878	=head2 EXTENSION DATABASE SUPPORT	2687	sub load_facedata($) {
		2688	my ($path) = @_;
1879		2689
1880	Crossfire maintains a very simple database for extension use. It can	2690	warn "loading facedata from $path\n";
1881	currently store anything that can be serialised using Storable, which
1882	excludes objects.
1883		2691
1884	The parameter C<$family> should best start with the name of the extension	2692	my $facedata;
1885	using it, it should be unique.	2693	0 < aio_load $path, $facedata
		2694	or die "$path: $!";
1886		2695
1887	=over 4	2696	$facedata = Coro::Storable::thaw $facedata;
1888		2697
1889	=item $hashref = cf::db_get $family	2698	$facedata->{version} == 2
		2699	or cf::cleanup "$path: version mismatch, cannot proceed.";
1890		2700
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	}	2701	{
		2702	my $faces = $facedata->{faceinfo};
1927		2703
1928	my $pid;	2704	while (my ($face, $info) = each %$faces) {
1929		2705	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1930	sub db_save() {	2706	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1931	waitpid $pid, 0 if $pid;	2707	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1932	if (0 == ($pid = fork)) {	2708	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1933	$DB->{_meta}{version} = 1;	2709	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]} = $_[1];
1967	}
1968	db_dirty;
1969	}
1970
1971	cf::global->attach (
1972	prio => 10000,
1973	on_cleanup => sub {
1974	db_sync;
1975	},	2710	}
1976	);
1977	}
1978		2711
1979	#############################################################################	2712	while (my ($face, $info) = each %$faces) {
1980	# the server's main()	2713	next unless $info->{smooth};
		2714	my $idx = cf::face::find $face
		2715	or next;
		2716	if (my $smooth = cf::face::find $info->{smooth}) {
		2717	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2718	} else {
		2719	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2720	}
		2721	Coro::cede;
		2722	}
		2723	}
		2724
		2725	{
		2726	my $anims = $facedata->{animinfo};
		2727
		2728	while (my ($anim, $info) = each %$anims) {
		2729	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2730	Coro::cede;
		2731	}
		2732
		2733	cf::anim::invalidate_all; # d'oh
		2734	}
		2735
		2736	1
		2737	}
		2738
		2739	sub reload_regions {
		2740	load_resource_file "$MAPDIR/regions"
		2741	or die "unable to load regions file\n";
		2742	}
		2743
		2744	sub reload_facedata {
		2745	load_facedata "$DATADIR/facedata"
		2746	or die "unable to load facedata\n";
		2747	}
		2748
		2749	sub reload_archetypes {
		2750	load_resource_file "$DATADIR/archetypes"
		2751	or die "unable to load archetypes\n";
		2752	#d# NEED to laod twice to resolve forward references
		2753	# this really needs to be done in an extra post-pass
		2754	# (which needs to be synchronous, so solve it differently)
		2755	load_resource_file "$DATADIR/archetypes"
		2756	or die "unable to load archetypes\n";
		2757	}
		2758
		2759	sub reload_treasures {
		2760	load_resource_file "$DATADIR/treasures"
		2761	or die "unable to load treasurelists\n";
		2762	}
		2763
		2764	sub reload_resources {
		2765	warn "reloading resource files...\n";
		2766
		2767	reload_regions;
		2768	reload_facedata;
		2769	#reload_archetypes;#d#
		2770	reload_archetypes;
		2771	reload_treasures;
		2772
		2773	warn "finished reloading resource files\n";
		2774	}
		2775
		2776	sub init {
		2777	reload_resources;
		2778	}
1981		2779
1982	sub cfg_load {	2780	sub cfg_load {
1983	open my $fh, "<:utf8", cf::confdir . "/config"	2781	open my $fh, "<:utf8", "$CONFDIR/config"
1984	or return;	2782	or return;
1985		2783
1986	local $/;	2784	local $/;
1987	*CFG = YAML::Syck::Load <$fh>;	2785	*CFG = YAML::Syck::Load <$fh>;
1988		2786
…		…
1991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2789	$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};	2790	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1993		2791
1994	if (exists $CFG{mlockall}) {	2792	if (exists $CFG{mlockall}) {
1995	eval {	2793	eval {
1996	$CFG{mlockall} ? &mlockall : &munlockall	2794	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1997	and die "WARNING: m(un)lockall failed: $!\n";	2795	and die "WARNING: m(un)lockall failed: $!\n";
1998	};	2796	};
1999	warn $@ if $@;	2797	warn $@ if $@;
2000	}	2798	}
2001	}	2799	}
2002		2800
2003	sub main {	2801	sub main {
2004	# we must not ever block the main coroutine	2802	# we must not ever block the main coroutine
2005	local $Coro::idle = sub {	2803	local $Coro::idle = sub {
2006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2804	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2007	Coro::async_pool { Event::one_event };	2805	(async {
		2806	Event::one_event;
		2807	})->prio (Coro::PRIO_MAX);
2008	};	2808	};
2009		2809
2010	cfg_load;	2810	cfg_load;
2011	db_load;	2811	db_init;
2012	load_extensions;	2812	load_extensions;
		2813
		2814	$TICK_WATCHER->start;
2013	Event::loop;	2815	Event::loop;
2014	}	2816	}
2015		2817
2016	#############################################################################	2818	#############################################################################
2017	# initialisation	2819	# initialisation and cleanup
2018		2820
		2821	# install some emergency cleanup handlers
		2822	BEGIN {
		2823	for my $signal (qw(INT HUP TERM)) {
		2824	Event->signal (
		2825	reentrant => 0,
		2826	data => WF_AUTOCANCEL,
		2827	signal => $signal,
		2828	prio => 0,
		2829	cb => sub {
		2830	cf::cleanup "SIG$signal";
		2831	},
		2832	);
		2833	}
		2834	}
		2835
		2836	sub write_runtime {
		2837	my $runtime = "$LOCALDIR/runtime";
		2838
		2839	# first touch the runtime file to show we are still running:
		2840	# the fsync below can take a very very long time.
		2841
		2842	IO::AIO::aio_utime $runtime, undef, undef;
		2843
		2844	my $guard = cf::lock_acquire "write_runtime";
		2845
		2846	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2847	or return;
		2848
		2849	my $value = $cf::RUNTIME + 90 + 10;
		2850	# 10 is the runtime save interval, for a monotonic clock
		2851	# 60 allows for the watchdog to kill the server.
		2852
		2853	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2854	and return;
		2855
		2856	# always fsync - this file is important
		2857	aio_fsync $fh
		2858	and return;
		2859
		2860	# touch it again to show we are up-to-date
		2861	aio_utime $fh, undef, undef;
		2862
		2863	close $fh
		2864	or return;
		2865
		2866	aio_rename "$runtime~", $runtime
		2867	and return;
		2868
		2869	warn "runtime file written.\n";
		2870
		2871	1
		2872	}
		2873
		2874	sub emergency_save() {
		2875	my $freeze_guard = cf::freeze_mainloop;
		2876
		2877	warn "enter emergency perl save\n";
		2878
		2879	cf::sync_job {
		2880	# use a peculiar iteration method to avoid tripping on perl
		2881	# refcount bugs in for. also avoids problems with players
		2882	# and maps saved/destroyed asynchronously.
		2883	warn "begin emergency player save\n";
		2884	for my $login (keys %cf::PLAYER) {
		2885	my $pl = $cf::PLAYER{$login} or next;
		2886	$pl->valid or next;
		2887	$pl->save;
		2888	}
		2889	warn "end emergency player save\n";
		2890
		2891	warn "begin emergency map save\n";
		2892	for my $path (keys %cf::MAP) {
		2893	my $map = $cf::MAP{$path} or next;
		2894	$map->valid or next;
		2895	$map->save;
		2896	}
		2897	warn "end emergency map save\n";
		2898
		2899	warn "begin emergency database checkpoint\n";
		2900	BDB::db_env_txn_checkpoint $DB_ENV;
		2901	warn "end emergency database checkpoint\n";
		2902	};
		2903
		2904	warn "leave emergency perl save\n";
		2905	}
		2906
		2907	sub post_cleanup {
		2908	my ($make_core) = @_;
		2909
		2910	warn Carp::longmess "post_cleanup backtrace"
		2911	if $make_core;
		2912	}
		2913
2019	sub reload() {	2914	sub do_reload_perl() {
2020	# can/must only be called in main	2915	# can/must only be called in main
2021	if ($Coro::current != $Coro::main) {	2916	if ($Coro::current != $Coro::main) {
2022	warn "can only reload from main coroutine\n";	2917	warn "can only reload from main coroutine";
2023	return;	2918	return;
2024	}	2919	}
2025		2920
2026	warn "reloading...";	2921	warn "reloading...";
2027		2922
2028	my $guard = freeze_mainloop;	2923	warn "entering sync_job";
		2924
		2925	cf::sync_job {
		2926	cf::write_runtime; # external watchdog should not bark
2029	cf::emergency_save;	2927	cf::emergency_save;
		2928	cf::write_runtime; # external watchdog should not bark
2030		2929
2031	eval {	2930	warn "syncing database to disk";
		2931	BDB::db_env_txn_checkpoint $DB_ENV;
		2932
2032	# if anything goes wrong in here, we should simply crash as we already saved	2933	# if anything goes wrong in here, we should simply crash as we already saved
2033		2934
2034	# cancel all watchers	2935	warn "cancelling all WF_AUTOCANCEL watchers";
2035	for (Event::all_watchers) {	2936	for (Event::all_watchers) {
2036	$_->cancel if $_->data & WF_AUTOCANCEL;	2937	$_->cancel if $_->data & WF_AUTOCANCEL;
2037	}	2938	}
2038		2939
		2940	warn "flushing outstanding aio requests";
		2941	for (;;) {
		2942	BDB::flush;
		2943	IO::AIO::flush;
		2944	Coro::cede;
		2945	last unless IO::AIO::nreqs || BDB::nreqs;
		2946	warn "iterate...";
		2947	}
		2948
		2949	++$RELOAD;
		2950
2039	# cancel all extension coros	2951	warn "cancelling all extension coros";
2040	$_->cancel for values %EXT_CORO;	2952	$_->cancel for values %EXT_CORO;
2041	%EXT_CORO = ();	2953	%EXT_CORO = ();
2042		2954
2043	# unload all extensions	2955	warn "removing commands";
2044	for (@exts) {	2956	%COMMAND = ();
		2957
		2958	warn "removing ext/exti commands";
		2959	%EXTCMD = ();
		2960	%EXTICMD = ();
		2961
		2962	warn "unloading/nuking all extensions";
		2963	for my $pkg (@EXTS) {
2045	warn "unloading <$_>";	2964	warn "... unloading $pkg";
2046	unload_extension $_;	2965
		2966	if (my $cb = $pkg->can ("unload")) {
		2967	eval {
		2968	$cb->($pkg);
		2969	1
		2970	} or warn "$pkg unloaded, but with errors: $@";
2047	}	2971	}
2048		2972
		2973	warn "... nuking $pkg";
		2974	Symbol::delete_package $pkg;
		2975	}
		2976
2049	# unload all modules loaded from $LIBDIR	2977	warn "unloading all perl modules loaded from $LIBDIR";
2050	while (my ($k, $v) = each %INC) {	2978	while (my ($k, $v) = each %INC) {
2051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2979	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2052		2980
2053	warn "removing <$k>";	2981	warn "... unloading $k";
2054	delete $INC{$k};	2982	delete $INC{$k};
2055		2983
2056	$k =~ s/\.pm$//;	2984	$k =~ s/\.pm$//;
2057	$k =~ s/\//::/g;	2985	$k =~ s/\//::/g;
2058		2986
…		…
2061	}	2989	}
2062		2990
2063	Symbol::delete_package $k;	2991	Symbol::delete_package $k;
2064	}	2992	}
2065		2993
2066	# sync database to disk
2067	cf::db_sync;
2068	IO::AIO::flush;
2069
2070	# get rid of safe::, as good as possible	2994	warn "getting rid of safe::, as good as possible";
2071	Symbol::delete_package "safe::$_"	2995	Symbol::delete_package "safe::$_"
2072	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2996	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2073		2997
2074	# remove register_script_function callbacks
2075	# TODO
2076
2077	# unload cf.pm "a bit"	2998	warn "unloading cf.pm \"a bit\"";
2078	delete $INC{"cf.pm"};	2999	delete $INC{"cf.pm"};
		3000	delete $INC{"cf/pod.pm"};
2079		3001
2080	# don't, removes xs symbols, too,	3002	# don't, removes xs symbols, too,
2081	# and global variables created in xs	3003	# and global variables created in xs
2082	#Symbol::delete_package __PACKAGE__;	3004	#Symbol::delete_package __PACKAGE__;
2083		3005
2084	# reload cf.pm	3006	warn "unload completed, starting to reload now";
		3007
2085	warn "reloading cf.pm";	3008	warn "reloading cf.pm";
2086	require cf;	3009	require cf;
2087	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3010	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2088		3011
2089	# load config and database again	3012	warn "loading config and database again";
2090	cf::cfg_load;	3013	cf::cfg_load;
2091	cf::db_load;
2092		3014
2093	# load extensions
2094	warn "load extensions";	3015	warn "loading extensions";
2095	cf::load_extensions;	3016	cf::load_extensions;
2096		3017
2097	# reattach attachments to objects	3018	warn "reattaching attachments to objects/players";
2098	warn "reattach";	3019	_global_reattach; # objects, sockets
2099	_global_reattach;	3020	warn "reattaching attachments to maps";
2100	};	3021	reattach $_ for values %MAP;
		3022	warn "reattaching attachments to players";
		3023	reattach $_ for values %PLAYER;
2101		3024
2102	if ($@) {	3025	warn "leaving sync_job";
		3026
		3027	1
		3028	} or do {
2103	warn $@;	3029	warn $@;
2104	warn "error while reloading, exiting.";	3030	warn "error while reloading, exiting.";
2105	exit 1;	3031	exit 1;
2106	}	3032	};
2107		3033
2108	warn "reloaded successfully";	3034	warn "reloaded";
2109	};	3035	};
2110		3036
2111	#############################################################################	3037	our $RELOAD_WATCHER; # used only during reload
2112		3038
2113	unless ($LINK_MAP) {	3039	sub reload_perl() {
2114	$LINK_MAP = cf::map::new;	3040	# doing reload synchronously and two reloads happen back-to-back,
		3041	# coro crashes during coro_state_free->destroy here.
2115		3042
2116	$LINK_MAP->width (41);	3043	$RELOAD_WATCHER ||= Event->timer (
2117	$LINK_MAP->height (41);	3044	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,	3045	after => 0,
		3046	data => WF_AUTOCANCEL,
2126	cb => sub {	3047	cb => sub {
2127	$_[0]->w->cancel;	3048	do_reload_perl;
2128		3049	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	});	3050	},
2147		3051	);
2148	$LINK_MAP->{deny_save} = 1;
2149	$LINK_MAP->{deny_reset} = 1;
2150
2151	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2152	}	3052	}
2153
2154	register "<global>", __PACKAGE__;
2155		3053
2156	register_command "reload" => sub {	3054	register_command "reload" => sub {
2157	my ($who, $arg) = @_;	3055	my ($who, $arg) = @_;
2158		3056
2159	if ($who->flag (FLAG_WIZ)) {	3057	if ($who->flag (FLAG_WIZ)) {
2160	$who->message ("start of reload.");
2161	reload;
2162	$who->message ("end of reload.");	3058	$who->message ("reloading server.");
		3059	async { reload_perl };
2163	}	3060	}
2164	};	3061	};
2165		3062
2166	unshift @INC, $LIBDIR;	3063	unshift @INC, $LIBDIR;
2167		3064
		3065	my $bug_warning = 0;
		3066
		3067	our @WAIT_FOR_TICK;
		3068	our @WAIT_FOR_TICK_BEGIN;
		3069
		3070	sub wait_for_tick {
		3071	return unless $TICK_WATCHER->is_active;
		3072	return if $Coro::current == $Coro::main;
		3073
		3074	my $signal = new Coro::Signal;
		3075	push @WAIT_FOR_TICK, $signal;
		3076	$signal->wait;
		3077	}
		3078
		3079	sub wait_for_tick_begin {
		3080	return unless $TICK_WATCHER->is_active;
		3081	return if $Coro::current == $Coro::main;
		3082
		3083	my $signal = new Coro::Signal;
		3084	push @WAIT_FOR_TICK_BEGIN, $signal;
		3085	$signal->wait;
		3086	}
		3087
		3088	my $min = 1e6;#d#
		3089	my $avg = 10;
2168	$TICK_WATCHER = Event->timer (	3090	$TICK_WATCHER = Event->timer (
2169	reentrant => 0,	3091	reentrant => 0,
		3092	parked => 1,
2170	prio => 0,	3093	prio => 0,
2171	at => $NEXT_TICK || $TICK,	3094	at => $NEXT_TICK || $TICK,
2172	data => WF_AUTOCANCEL,	3095	data => WF_AUTOCANCEL,
2173	cb => sub {	3096	cb => sub {
		3097	if ($Coro::current != $Coro::main) {
		3098	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3099	unless ++$bug_warning > 10;
		3100	return;
		3101	}
		3102
		3103	$NOW = $tick_start = Event::time;
		3104
2174	cf::server_tick; # one server iteration	3105	cf::server_tick; # one server iteration
		3106
		3107	0 && sync_job {#d#
		3108	for(1..10) {
		3109	my $t = Event::time;
		3110	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3111	or die;
		3112
		3113	$map->width (50);
		3114	$map->height (50);
		3115	$map->alloc;
		3116	$map->_load_objects ("/tmp/x.map", 1);
		3117	my $t = Event::time - $t;
		3118
		3119	#next unless $t < 0.0013;#d#
		3120	if ($t < $min) {
		3121	$min = $t;
		3122	}
		3123	$avg = $avg * 0.99 + $t * 0.01;
		3124	}
		3125	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3126	exit 0;
		3127	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3128	};
		3129
2175	$RUNTIME += $TICK;	3130	$RUNTIME += $TICK;
2176	$NEXT_TICK += $TICK;	3131	$NEXT_TICK += $TICK;
2177		3132
		3133	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3134	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3135	Coro::async_pool {
		3136	write_runtime
		3137	or warn "ERROR: unable to write runtime file: $!";
		3138	};
		3139	}
		3140
		3141	# my $AFTER = Event::time;
		3142	# warn $AFTER - $NOW;#d#
		3143
		3144	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3145	$sig->send;
		3146	}
		3147	while (my $sig = shift @WAIT_FOR_TICK) {
		3148	$sig->send;
		3149	}
		3150
		3151	$NOW = Event::time;
		3152
2178	# if we are delayed by four ticks or more, skip them all	3153	# if we are delayed by four ticks or more, skip them all
2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3154	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2180		3155
2181	$TICK_WATCHER->at ($NEXT_TICK);	3156	$TICK_WATCHER->at ($NEXT_TICK);
2182	$TICK_WATCHER->start;	3157	$TICK_WATCHER->start;
		3158
		3159	$LOAD = ($NOW - $tick_start) / $TICK;
		3160	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3161
		3162	_post_tick;
		3163
		3164
2183	},	3165	},
2184	);	3166	);
2185		3167
		3168	{
2186	IO::AIO::max_poll_time $TICK * 0.2;	3169	BDB::max_poll_time $TICK * 0.1;
2187		3170	$BDB_POLL_WATCHER = Event->io (
2188	Event->io (	3171	reentrant => 0,
2189	fd => IO::AIO::poll_fileno,	3172	fd => BDB::poll_fileno,
2190	poll => 'r',	3173	poll => 'r',
2191	prio => 5,	3174	prio => 0,
2192	data => WF_AUTOCANCEL,
2193	cb => \&IO::AIO::poll_cb,
2194	);
2195
2196	Event->timer (
2197	data => WF_AUTOCANCEL,	3175	data => WF_AUTOCANCEL,
2198	after => 0,	3176	cb => \&BDB::poll_cb,
2199	interval => 10,	3177	);
2200	cb => sub {	3178	BDB::min_parallel 8;
2201	(Coro::unblock_sub {	3179
2202	write_runtime	3180	BDB::set_sync_prepare {
2203	or warn "ERROR: unable to write runtime file: $!";	3181	my $status;
		3182	my $current = $Coro::current;
		3183	(
		3184	sub {
		3185	$status = $!;
		3186	$current->ready; undef $current;
		3187	},
		3188	sub {
		3189	Coro::schedule while defined $current;
		3190	$! = $status;
		3191	},
		3192	)
		3193	};
		3194
		3195	unless ($DB_ENV) {
		3196	$DB_ENV = BDB::db_env_create;
		3197
		3198	cf::sync_job {
		3199	eval {
		3200	BDB::db_env_open
		3201	$DB_ENV,
		3202	$BDBDIR,
		3203	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3204	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3205	0666;
		3206
		3207	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3208
		3209	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3210	$DB_ENV->set_lk_detect;
		3211	};
		3212
		3213	cf::cleanup "db_env_open(db): $@" if $@;
2204	})->();	3214	};
2205	},	3215	}
2206	);	3216	}
		3217
		3218	{
		3219	IO::AIO::min_parallel 8;
		3220
		3221	undef $Coro::AIO::WATCHER;
		3222	IO::AIO::max_poll_time $TICK * 0.1;
		3223	$AIO_POLL_WATCHER = Event->io (
		3224	reentrant => 0,
		3225	data => WF_AUTOCANCEL,
		3226	fd => IO::AIO::poll_fileno,
		3227	poll => 'r',
		3228	prio => 6,
		3229	cb => \&IO::AIO::poll_cb,
		3230	);
		3231	}
		3232
		3233	my $_log_backtrace;
		3234
		3235	sub _log_backtrace {
		3236	my ($msg, @addr) = @_;
		3237
		3238	$msg =~ s/\n//;
		3239
		3240	# limit the # of concurrent backtraces
		3241	if ($_log_backtrace < 2) {
		3242	++$_log_backtrace;
		3243	async {
		3244	my @bt = fork_call {
		3245	@addr = map { sprintf "%x", $_ } @addr;
		3246	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3247	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3248	or die "addr2line: $!";
		3249
		3250	my @funcs;
		3251	my @res = <$fh>;
		3252	chomp for @res;
		3253	while (@res) {
		3254	my ($func, $line) = splice @res, 0, 2, ();
		3255	push @funcs, "[$func] $line";
		3256	}
		3257
		3258	@funcs
		3259	};
		3260
		3261	LOG llevInfo, "[ABT] $msg\n";
		3262	LOG llevInfo, "[ABT] $_\n" for @bt;
		3263	--$_log_backtrace;
		3264	};
		3265	} else {
		3266	LOG llevInfo, "[ABT] $msg\n";
		3267	LOG llevInfo, "[ABT] [suppressed]\n";
		3268	}
		3269	}
		3270
		3271	# load additional modules
		3272	use cf::pod;
2207		3273
2208	END { cf::emergency_save }	3274	END { cf::emergency_save }
2209		3275
2210	1	3276	1
2211		3277

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