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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.140 by root, Fri Jan 5 20:04:02 2007 UTC vs.
Revision 1.298 by root, Sun Jul 8 14:50:07 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	$guard
232	}	318	}
233		319
234	=item cf::async { BLOCK }	320	=item cf::async { BLOCK }
…		…
241		327
242	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
243		329
244	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
245		331
246	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
249		336
250	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
253	fast or be very important.	340	fast or be very important.
…		…
256		343
257	sub sync_job(&) {	344	sub sync_job(&) {
258	my ($job) = @_;	345	my ($job) = @_;
259		346
260	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
261	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
263		352
264	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
265	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
273	warn $@ if $@;	362	warn $@ if $@;
274	undef $busy;	363	undef $busy;
275	})->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
276		365
277	while ($busy) {	366	while ($busy) {
278	unless (Coro::cede) {	367	Coro::cede or Event::one_event;
279	Coro::nready ? Event::one_event 0 : Event::one_event;
280	Coro::cede_notself unless Coro::cede;
281	}	368	}
282	}	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
283		376
284	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
285	} else {	378	} else {
286	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
287		380
…		…
289	}	382	}
290	}	383	}
291		384
292	=item $coro = cf::async_ext { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
293		386
294	Like async, but this coro is automcatially being canceled when the	387	Like async, but this coro is automatically being canceled when the
295	extension calling this is being unloaded.	388	extension calling this is being unloaded.
296		389
297	=cut	390	=cut
298		391
299	sub async_ext(&) {	392	sub async_ext(&) {
…		…
307	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
308		401
309	$coro	402	$coro
310	}	403	}
311		404
312	sub write_runtime {	405	=item fork_call { }, $args
313	my $runtime = cf::localdir . "/runtime";
314		406
315	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
316	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.
317		411
318	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
319	(aio_write $fh, 0, (length $value), $value, 0) <= 0
320	and return;
321		413
322	aio_fsync $fh	414	sub fork_call(&@) {
323	and return;	415	my ($cb, @args) = @_;
324		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) {
325	close $fh	423	close $fh2;
326	or return;
327		424
328	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
329	and return;	426	warn "pst<$res>" unless $res =~ /^pst/;
		427	$res = Coro::Storable::thaw $res;
330		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	Carp::confess $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	local $Coro::idle;
		439	$Coro::current->prio (Coro::PRIO_MAX);
		440	eval {
		441	close $fh1;
		442
		443	my @res = eval { $cb->(@args) };
		444
		445	open my $fh, ">", \my $buf
		446	or die "fork_call: cannot open fh-to-buf in child : $!";
		447	Storable::store_fd +($@ ? \"$@" : \@res), $fh;
		448	close $fh;
		449
		450	warn "writing ", length $buf;
		451	my $x;
		452	(length $buf) == ($x = syswrite $fh2, $buf)
		453	or warn "error writing ".(length $buf)." != $x\n";
		454	close $fh2;
		455	};
		456
		457	warn $@ if $@;
		458	_exit 0;
331	1	459	}
		460	}
		461
		462	=item $value = cf::db_get $family => $key
		463
		464	Returns a single value from the environment database.
		465
		466	=item cf::db_put $family => $key => $value
		467
		468	Stores the given C<$value> in the family. It can currently store binary
		469	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		470
		471	=cut
		472
		473	our $DB;
		474
		475	sub db_init {
		476	unless ($DB) {
		477	$DB = BDB::db_create $DB_ENV;
		478
		479	cf::sync_job {
		480	eval {
		481	$DB->set_flags (BDB::CHKSUM);
		482
		483	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		484	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		485	cf::cleanup "db_open(db): $!" if $!;
		486	};
		487	cf::cleanup "db_open(db): $@" if $@;
		488	};
		489	}
		490	}
		491
		492	sub db_get($$) {
		493	my $key = "$_[0]/$_[1]";
		494
		495	cf::sync_job {
		496	BDB::db_get $DB, undef, $key, my $data;
		497
		498	$! ? ()
		499	: $data
		500	}
		501	}
		502
		503	sub db_put($$$) {
		504	BDB::dbreq_pri 4;
		505	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		506	}
		507
		508	=item cf::cache $id => [$paths...], $processversion => $process
		509
		510	Generic caching function that returns the value of the resource $id,
		511	caching and regenerating as required.
		512
		513	This function can block.
		514
		515	=cut
		516
		517	sub cache {
		518	my ($id, $src, $processversion, $process) = @_;
		519
		520	my $meta =
		521	join "\x00",
		522	$processversion,
		523	map {
		524	aio_stat $_
		525	and Carp::croak "$_: $!";
		526
		527	($_, (stat _)[7,9])
		528	} @$src;
		529
		530	my $dbmeta = db_get cache => "$id/meta";
		531	if ($dbmeta ne $meta) {
		532	# changed, we may need to process
		533
		534	my @data;
		535	my $md5;
		536
		537	for (0 .. $#$src) {
		538	0 <= aio_load $src->[$_], $data[$_]
		539	or Carp::croak "$src->[$_]: $!";
		540	}
		541
		542	# if processing is expensive, check
		543	# checksum first
		544	if (1) {
		545	$md5 =
		546	join "\x00",
		547	$processversion,
		548	map {
		549	Coro::cede;
		550	($src->[$_], Digest::MD5::md5_hex $data[$_])
		551	} 0.. $#$src;
		552
		553
		554	my $dbmd5 = db_get cache => "$id/md5";
		555	if ($dbmd5 eq $md5) {
		556	db_put cache => "$id/meta", $meta;
		557
		558	return db_get cache => "$id/data";
		559	}
		560	}
		561
		562	my $t1 = Time::HiRes::time;
		563	my $data = $process->(\@data);
		564	my $t2 = Time::HiRes::time;
		565
		566	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		567
		568	db_put cache => "$id/data", $data;
		569	db_put cache => "$id/md5" , $md5;
		570	db_put cache => "$id/meta", $meta;
		571
		572	return $data;
		573	}
		574
		575	db_get cache => "$id/data"
		576	}
		577
		578	=item cf::datalog type => key => value, ...
		579
		580	Log a datalog packet of the given type with the given key-value pairs.
		581
		582	=cut
		583
		584	sub datalog($@) {
		585	my ($type, %kv) = @_;
		586	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
332	}	587	}
333		588
334	=back	589	=back
335		590
336	=cut	591	=cut
337
338	#############################################################################
339
340	package cf::path;
341
342	sub new {
343	my ($class, $path, $base) = @_;
344
345	$path = $path->as_string if ref $path;
346
347	my $self = bless { }, $class;
348
349	# {... are special paths that are not touched
350	# ?xxx/... are special absolute paths
351	# ?random/... random maps
352	# /! non-realised random map exit
353	# /... normal maps
354	# ~/... per-player maps without a specific player (DO NOT USE)
355	# ~user/... per-player map of a specific user
356
357	if ($path =~ /^{/) {
358	# fine as it is
359	} elsif ($path =~ s{^\?random/}{}) {
360	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
361	$self->{random} = cf::from_json $data;
362	} else {
363	if ($path =~ s{^~([^/]+)?}{}) {
364	$self->{user_rel} = 1;
365
366	if (defined $1) {
367	$self->{user} = $1;
368	} elsif ($base =~ m{^~([^/]+)/}) {
369	$self->{user} = $1;
370	} else {
371	warn "cannot resolve user-relative path without user <$path,$base>\n";
372	}
373	} elsif ($path =~ /^\//) {
374	# already absolute
375	} else {
376	$base =~ s{[^/]+/?$}{};
377	return $class->new ("$base/$path");
378	}
379
380	for ($path) {
381	redo if s{/\.?/}{/};
382	redo if s{/[^/]+/\.\./}{/};
383	}
384	}
385
386	$self->{path} = $path;
387
388	$self
389	}
390
391	# the name / primary key / in-game path
392	sub as_string {
393	my ($self) = @_;
394
395	$self->{user_rel} ? "~$self->{user}$self->{path}"
396	: $self->{random} ? "?random/$self->{path}"
397	: $self->{path}
398	}
399
400	# the displayed name, this is a one way mapping
401	sub visible_name {
402	my ($self) = @_;
403
404	# if (my $rmp = $self->{random}) {
405	# # todo: be more intelligent about this
406	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
407	# } else {
408	$self->as_string
409	# }
410	}
411
412	# escape the /'s in the path
413	sub _escaped_path {
414	# ∕ is U+2215
415	(my $path = $_[0]{path}) =~ s/\//∕/g;
416	$path
417	}
418
419	# the original (read-only) location
420	sub load_path {
421	my ($self) = @_;
422
423	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
424	}
425
426	# the temporary/swap location
427	sub save_path {
428	my ($self) = @_;
429
430	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
431	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
432	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
433	}
434
435	# the unique path, might be eq to save_path
436	sub uniq_path {
437	my ($self) = @_;
438
439	$self->{user_rel} || $self->{random}
440	? undef
441	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
442	}
443
444	# return random map parameters, or undef
445	sub random_map_params {
446	my ($self) = @_;
447
448	$self->{random}
449	}
450
451	# this is somewhat ugly, but style maps do need special treatment
452	sub is_style_map {
453	$_[0]{path} =~ m{^/styles/}
454	}
455
456	package cf;
457		592
458	#############################################################################	593	#############################################################################
459		594
460	=head2 ATTACHABLE OBJECTS	595	=head2 ATTACHABLE OBJECTS
461		596
…		…
463	attach callbacks/event handlers (a collection of which is called an "attachment")	598	attach callbacks/event handlers (a collection of which is called an "attachment")
464	to it. All such attachable objects support the following methods.	599	to it. All such attachable objects support the following methods.
465		600
466	In the following description, CLASS can be any of C<global>, C<object>	601	In the following description, CLASS can be any of C<global>, C<object>
467	C<player>, C<client> or C<map> (i.e. the attachable objects in	602	C<player>, C<client> or C<map> (i.e. the attachable objects in
468	crossfire+).	603	Crossfire TRT).
469		604
470	=over 4	605	=over 4
471		606
472	=item $attachable->attach ($attachment, key => $value...)	607	=item $attachable->attach ($attachment, key => $value...)
473		608
…		…
587	our @CB_TYPE = (); # registry for type (cf-object class) based events	722	our @CB_TYPE = (); # registry for type (cf-object class) based events
588	our @CB_MAP = ();	723	our @CB_MAP = ();
589		724
590	my %attachment;	725	my %attachment;
591		726
		727	sub cf::attachable::thawer_merge {
		728	# simply override everything except _meta
		729	local $_[0]{_meta};
		730	%{$_[0]} = %{$_[1]};
		731	}
		732
592	sub _attach_cb($$$$) {	733	sub _attach_cb($$$$) {
593	my ($registry, $event, $prio, $cb) = @_;	734	my ($registry, $event, $prio, $cb) = @_;
594		735
595	use sort 'stable';	736	use sort 'stable';
596		737
…		…
630	$registry = $CB_TYPE[$object_type] ||= [];	771	$registry = $CB_TYPE[$object_type] ||= [];
631		772
632	} elsif ($type eq "subtype") {	773	} elsif ($type eq "subtype") {
633	defined $object_type or Carp::croak "subtype specified without type";	774	defined $object_type or Carp::croak "subtype specified without type";
634	my $object_subtype = shift @arg;	775	my $object_subtype = shift @arg;
635	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	776	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
636		777
637	} elsif ($type eq "package") {	778	} elsif ($type eq "package") {
638	my $pkg = shift @arg;	779	my $pkg = shift @arg;
639		780
640	while (my ($name, $id) = each %cb_id) {	781	while (my ($name, $id) = each %cb_id) {
…		…
669	_attach $registry, $klass, @attach;	810	_attach $registry, $klass, @attach;
670	}	811	}
671		812
672	$obj->{$name} = \%arg;	813	$obj->{$name} = \%arg;
673	} else {	814	} else {
674	warn "object uses attachment '$name' that is not available, postponing.\n";	815	warn "object uses attachment '$name' which is not available, postponing.\n";
675	}	816	}
676		817
677	$obj->{_attachment}{$name} = undef;	818	$obj->{_attachment}{$name} = undef;
678	}	819	}
679		820
…		…
681	if (ref $_[0]) {	822	if (ref $_[0]) {
682	_object_attach @_;	823	_object_attach @_;
683	} else {	824	} else {
684	_attach shift->_attach_registry, @_;	825	_attach shift->_attach_registry, @_;
685	}	826	}
		827	_recalc_want;
686	};	828	};
687		829
688	# all those should be optimised	830	# all those should be optimised
689	sub cf::attachable::detach {	831	sub cf::attachable::detach {
690	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
…		…
693	delete $obj->{_attachment}{$name};	835	delete $obj->{_attachment}{$name};
694	reattach ($obj);	836	reattach ($obj);
695	} else {	837	} else {
696	Carp::croak "cannot, currently, detach class attachments";	838	Carp::croak "cannot, currently, detach class attachments";
697	}	839	}
		840	_recalc_want;
698	};	841	};
699		842
700	sub cf::attachable::attached {	843	sub cf::attachable::attached {
701	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
702		845
…		…
767	# object support	910	# object support
768		911
769	sub reattach {	912	sub reattach {
770	# basically do the same as instantiate, without calling instantiate	913	# basically do the same as instantiate, without calling instantiate
771	my ($obj) = @_;	914	my ($obj) = @_;
		915
		916	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		917
773	my $registry = $obj->registry;	918	my $registry = $obj->registry;
774		919
775	@$registry = ();	920	@$registry = ();
776		921
…		…
823	$filename, length $$rdata, scalar @$objs;	968	$filename, length $$rdata, scalar @$objs;
824		969
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	970	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	971	chmod SAVE_MODE, $fh;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	972	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh;	973	aio_fsync $fh if $cf::USE_FSYNC;
829	close $fh;	974	close $fh;
830		975
831	if (@$objs) {	976	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	977	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	978	chmod SAVE_MODE, $fh;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	979	my $data = Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	980	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh;	981	aio_fsync $fh if $cf::USE_FSYNC;
837	close $fh;	982	close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	983	aio_rename "$filename.pst~", "$filename.pst";
839	}	984	}
840	} else {	985	} else {
841	aio_unlink "$filename.pst";	986	aio_unlink "$filename.pst";
…		…
873	or return;	1018	or return;
874	$av = eval { (Storable::thaw $av)->{objs} };	1019	$av = eval { (Storable::thaw $av)->{objs} };
875	}	1020	}
876		1021
877	warn sprintf "loading %s (%d)\n",	1022	warn sprintf "loading %s (%d)\n",
878	$filename, length $data, scalar @{$av || []};#d#	1023	$filename, length $data, scalar @{$av || []};
879	return ($data, $av);	1024	return ($data, $av);
880	}	1025	}
		1026
		1027	=head2 COMMAND CALLBACKS
		1028
		1029	=over 4
		1030
		1031	=cut
881		1032
882	#############################################################################	1033	#############################################################################
883	# command handling &c	1034	# command handling &c
884		1035
885	=item cf::register_command $name => \&callback($ob,$args);	1036	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1049	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1050	}
900		1051
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1052	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1053
903	Register a callbackf ro execution when the client sends an extcmd packet.	1054	Register a callback for execution when the client sends an (synchronous)
		1055	extcmd packet. Ext commands will be processed in the order they are
		1056	received by the server, like other user commands. The first argument is
		1057	the logged-in player. Ext commands can only be processed after a player
		1058	has logged in successfully.
904		1059
905	If the callback returns something, it is sent back as if reply was being	1060	If the callback returns something, it is sent back as if reply was being
906	called.	1061	called.
907		1062
		1063	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1064
		1065	Register a callback for execution when the client sends an (asynchronous)
		1066	exticmd packet. Exti commands are processed by the server as soon as they
		1067	are received, i.e. out of order w.r.t. other commands. The first argument
		1068	is a client socket. Exti commands can be received anytime, even before
		1069	log-in.
		1070
		1071	If the callback returns something, it is sent back as if reply was being
		1072	called.
		1073
908	=cut	1074	=cut
909		1075
910	sub register_extcmd {	1076	sub register_extcmd {
911	my ($name, $cb) = @_;	1077	my ($name, $cb) = @_;
912		1078
913	my $caller = caller;
914	#warn "registering extcmd '$name' to '$caller'";
915
916	$EXTCMD{$name} = [$cb, $caller];	1079	$EXTCMD{$name} = $cb;
		1080	}
		1081
		1082	sub register_exticmd {
		1083	my ($name, $cb) = @_;
		1084
		1085	$EXTICMD{$name} = $cb;
917	}	1086	}
918		1087
919	cf::player->attach (	1088	cf::player->attach (
920	on_command => sub {	1089	on_command => sub {
921	my ($pl, $name, $params) = @_;	1090	my ($pl, $name, $params) = @_;
…		…
930	cf::override;	1099	cf::override;
931	},	1100	},
932	on_extcmd => sub {	1101	on_extcmd => sub {
933	my ($pl, $buf) = @_;	1102	my ($pl, $buf) = @_;
934		1103
935	my $msg = eval { from_json $buf };	1104	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
936		1105
937	if (ref $msg) {	1106	if (ref $msg) {
938	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1107	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
939	if (my %reply = $cb->[0]->($pl, $msg)) {	1108	if (my %reply = $cb->($pl, $msg)) {
940	$pl->ext_reply ($msg->{msgid}, %reply);	1109	$pl->ext_reply ($msg->{msgid}, %reply);
941	}	1110	}
942	}	1111	}
943	} else {	1112	} else {
944	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1113	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
946		1115
947	cf::override;	1116	cf::override;
948	},	1117	},
949	);	1118	);
950		1119
951	sub register {
952	my ($base, $pkg) = @_;
953
954	#TODO
955	}
956
957	sub load_extension {	1120	sub load_extensions {
		1121	cf::sync_job {
		1122	my %todo;
		1123
		1124	for my $path (<$LIBDIR/*.ext>) {
		1125	next unless -r $path;
		1126
		1127	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1128	my $base = $1;
		1129	my $pkg = $1;
		1130	$pkg =~ s/[^[:word:]]/_/g;
		1131	$pkg = "ext::$pkg";
		1132
		1133	open my $fh, "<:utf8", $path
		1134	or die "$path: $!";
		1135
		1136	my $source = do { local $/; <$fh> };
		1137
		1138	my %ext = (
		1139	path => $path,
		1140	base => $base,
		1141	pkg => $pkg,
		1142	);
		1143
		1144	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1145	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1146
		1147	$ext{source} =
		1148	"package $pkg; use strict; use utf8;\n"
		1149	. "#line 1 \"$path\"\n{\n"
		1150	. $source
		1151	. "\n};\n1";
		1152
		1153	$todo{$base} = \%ext;
		1154	}
		1155
		1156	my %done;
		1157	while (%todo) {
		1158	my $progress;
		1159
		1160	while (my ($k, $v) = each %todo) {
		1161	for (split /,\s*/, $v->{meta}{depends}) {
		1162	goto skip
		1163	unless exists $done{$_};
		1164	}
		1165
		1166	warn "... loading '$k' into '$v->{pkg}'\n";
		1167
		1168	unless (eval $v->{source}) {
		1169	my $msg = $@ ? "$v->{path}: $@\n"
		1170	: "$v->{base}: extension inactive.\n";
		1171
		1172	if (exists $v->{meta}{mandatory}) {
		1173	warn $msg;
		1174	warn "mandatory extension failed to load, exiting.\n";
		1175	exit 1;
		1176	}
		1177
		1178	warn $msg;
		1179	}
		1180
		1181	$done{$k} = delete $todo{$k};
		1182	push @EXTS, $v->{pkg};
		1183	$progress = 1;
		1184	}
		1185
		1186	skip:
		1187	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1188	unless $progress;
		1189	}
		1190	};
		1191	}
		1192
		1193	#############################################################################
		1194
		1195	=back
		1196
		1197	=head2 CORE EXTENSIONS
		1198
		1199	Functions and methods that extend core crossfire objects.
		1200
		1201	=cut
		1202
		1203	package cf::player;
		1204
		1205	use Coro::AIO;
		1206
		1207	=head3 cf::player
		1208
		1209	=over 4
		1210
		1211	=item cf::player::find $login
		1212
		1213	Returns the given player object, loading it if necessary (might block).
		1214
		1215	=cut
		1216
		1217	sub playerdir($) {
		1218	"$PLAYERDIR/"
		1219	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1220	}
		1221
		1222	sub path($) {
		1223	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1224
		1225	(playerdir $login) . "/playerdata"
		1226	}
		1227
		1228	sub find_active($) {
		1229	$cf::PLAYER{$_[0]}
		1230	and $cf::PLAYER{$_[0]}->active
		1231	and $cf::PLAYER{$_[0]}
		1232	}
		1233
		1234	sub exists($) {
		1235	my ($login) = @_;
		1236
		1237	$cf::PLAYER{$login}
		1238	or cf::sync_job { !aio_stat path $login }
		1239	}
		1240
		1241	sub find($) {
		1242	return $cf::PLAYER{$_[0]} || do {
		1243	my $login = $_[0];
		1244
		1245	my $guard = cf::lock_acquire "user_find:$login";
		1246
		1247	$cf::PLAYER{$_[0]} || do {
		1248	# rename old playerfiles to new ones
		1249	#TODO: remove when no longer required
		1250	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1251	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1252	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1253	aio_unlink +(playerdir $login) . "/$login.pl";
		1254
		1255	my $pl = load_pl path $login
		1256	or return;
		1257	$cf::PLAYER{$login} = $pl
		1258	}
		1259	}
		1260	}
		1261
		1262	sub save($) {
		1263	my ($pl) = @_;
		1264
		1265	return if $pl->{deny_save};
		1266
		1267	my $path = path $pl;
		1268	my $guard = cf::lock_acquire "user_save:$path";
		1269
		1270	return if $pl->{deny_save};
		1271
		1272	aio_mkdir playerdir $pl, 0770;
		1273	$pl->{last_save} = $cf::RUNTIME;
		1274
		1275	$pl->save_pl ($path);
		1276	Coro::cede;
		1277	}
		1278
		1279	sub new($) {
		1280	my ($login) = @_;
		1281
		1282	my $self = create;
		1283
		1284	$self->ob->name ($login);
		1285	$self->{deny_save} = 1;
		1286
		1287	$cf::PLAYER{$login} = $self;
		1288
		1289	$self
		1290	}
		1291
		1292	=item $pl->quit_character
		1293
		1294	Nukes the player without looking back. If logged in, the connection will
		1295	be destroyed. May block for a long time.
		1296
		1297	=cut
		1298
		1299	sub quit_character {
		1300	my ($pl) = @_;
		1301
		1302	my $name = $pl->ob->name;
		1303
		1304	$pl->{deny_save} = 1;
		1305	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1306
		1307	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1308	$pl->deactivate;
		1309	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1310	$pl->ns->destroy if $pl->ns;
		1311
		1312	my $path = playerdir $pl;
		1313	my $temp = "$path~$cf::RUNTIME~deleting~";
		1314	aio_rename $path, $temp;
		1315	delete $cf::PLAYER{$pl->ob->name};
		1316	$pl->destroy;
		1317
		1318	my $prefix = qr<^~\Q$name\E/>;
		1319
		1320	# nuke player maps
		1321	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1322
		1323	IO::AIO::aio_rmtree $temp;
		1324	}
		1325
		1326	=item $pl->kick
		1327
		1328	Kicks a player out of the game. This destroys the connection.
		1329
		1330	=cut
		1331
		1332	sub kick {
		1333	my ($pl, $kicker) = @_;
		1334
		1335	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1336	$pl->killer ("kicked");
		1337	$pl->ns->destroy;
		1338	}
		1339
		1340	=item cf::player::list_logins
		1341
		1342	Returns am arrayref of all valid playernames in the system, can take a
		1343	while and may block, so not sync_job-capable, ever.
		1344
		1345	=cut
		1346
		1347	sub list_logins {
		1348	my $dirs = aio_readdir $PLAYERDIR
		1349	or return [];
		1350
		1351	my @logins;
		1352
		1353	for my $login (@$dirs) {
		1354	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1355	aio_read $fh, 0, 512, my $buf, 0 or next;
		1356	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1357
		1358	utf8::decode $login;
		1359	push @logins, $login;
		1360	}
		1361
		1362	\@logins
		1363	}
		1364
		1365	=item $player->maps
		1366
		1367	Returns an arrayref of map paths that are private for this
		1368	player. May block.
		1369
		1370	=cut
		1371
		1372	sub maps($) {
		1373	my ($pl) = @_;
		1374
		1375	$pl = ref $pl ? $pl->ob->name : $pl;
		1376
		1377	my $files = aio_readdir playerdir $pl
		1378	or return;
		1379
		1380	my @paths;
		1381
		1382	for (@$files) {
		1383	utf8::decode $_;
		1384	next if /\.(?:pl|pst)$/;
		1385	next unless /^$PATH_SEP/o;
		1386
		1387	push @paths, cf::map::normalise "~$pl/$_";
		1388	}
		1389
		1390	\@paths
		1391	}
		1392
		1393	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1394
		1395	Expand crossfire pod fragments into protocol xml.
		1396
		1397	=cut
		1398
		1399	sub expand_cfpod {
		1400	((my $self), (local $_)) = @_;
		1401
		1402	# escape & and <
		1403	s/&/&amp;/g;
		1404	s/(?<![BIUGH])</&lt;/g;
		1405
		1406	# this is buggy, it needs to properly take care of nested <'s
		1407
		1408	1 while
		1409	# replace B<>, I<>, U<> etc.
		1410	s/B<([^\>]*)>/<b>$1<\/b>/
		1411	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1412	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1413	# replace G<male|female> tags
		1414	|| s{G<([^>|]*)\|([^>]*)>}{
		1415	$self->gender ? $2 : $1
		1416	}ge
		1417	# replace H<hint text>
		1418	|| s{H<([^\>]*)>}
		1419	{
		1420	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1421	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1422	"")
		1423	[$self->{hintmode}]
		1424	}ge;
		1425
		1426	# create single paragraphs (very hackish)
		1427	s/(?<=\S)\n(?=\w)/ /g;
		1428
		1429	# compress some whitespace
		1430	s/\s+\n/\n/g; # ws line-ends
		1431	s/\n\n+/\n/g; # double lines
		1432	s/^\n+//; # beginning lines
		1433	s/\n+$//; # ending lines
		1434
		1435	$_
		1436	}
		1437
		1438	sub hintmode {
		1439	$_[0]{hintmode} = $_[1] if @_ > 1;
		1440	$_[0]{hintmode}
		1441	}
		1442
		1443	=item $player->ext_reply ($msgid, %msg)
		1444
		1445	Sends an ext reply to the player.
		1446
		1447	=cut
		1448
		1449	sub ext_reply($$%) {
		1450	my ($self, $id, %msg) = @_;
		1451
		1452	$msg{msgid} = $id;
		1453	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1454	}
		1455
		1456	=item $player->ext_event ($type, %msg)
		1457
		1458	Sends an ext event to the client.
		1459
		1460	=cut
		1461
		1462	sub ext_event($$%) {
		1463	my ($self, $type, %msg) = @_;
		1464
		1465	$self->ns->ext_event ($type, %msg);
		1466	}
		1467
		1468	=head3 cf::region
		1469
		1470	=over 4
		1471
		1472	=cut
		1473
		1474	package cf::region;
		1475
		1476	=item cf::region::find_by_path $path
		1477
		1478	Tries to decuce the likely region for a map knowing only its path.
		1479
		1480	=cut
		1481
		1482	sub find_by_path($) {
958	my ($path) = @_;	1483	my ($path) = @_;
959		1484
960	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1485	my ($match, $specificity);
961	my $base = $1;
962	my $pkg = $1;
963	$pkg =~ s/[^[:word:]]/_/g;
964	$pkg = "ext::$pkg";
965		1486
966	warn "loading '$path' into '$pkg'\n";	1487	for my $region (list) {
967		1488	if ($region->match && $path =~ $region->match) {
968	open my $fh, "<:utf8", $path	1489	($match, $specificity) = ($region, $region->specificity)
969	or die "$path: $!";	1490	if $region->specificity > $specificity;
970		1491	}
971	my $source =
972	"package $pkg; use strict; use utf8;\n"
973	. "#line 1 \"$path\"\n{\n"
974	. (do { local $/; <$fh> })
975	. "\n};\n1";
976
977	eval $source
978	or die $@ ? "$path: $@\n"
979	: "extension disabled.\n";
980
981	push @exts, $pkg;
982	$ext_pkg{$base} = $pkg;
983
984	# no strict 'refs';
985	# @{"$pkg\::ISA"} = ext::;
986
987	register $base, $pkg;
988	}
989
990	sub unload_extension {
991	my ($pkg) = @_;
992
993	warn "removing extension $pkg\n";
994
995	# remove hooks
996	#TODO
997	# for my $idx (0 .. $#PLUGIN_EVENT) {
998	# delete $hook[$idx]{$pkg};
999	# }	1492	}
1000		1493
1001	# remove commands	1494	$match
1002	for my $name (keys %COMMAND) {
1003	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1004
1005	if (@cb) {
1006	$COMMAND{$name} = \@cb;
1007	} else {
1008	delete $COMMAND{$name};
1009	}
1010	}
1011
1012	# remove extcmds
1013	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1014	delete $EXTCMD{$name};
1015	}
1016
1017	if (my $cb = $pkg->can ("unload")) {
1018	eval {
1019	$cb->($pkg);
1020	1
1021	} or warn "$pkg unloaded, but with errors: $@";
1022	}
1023
1024	Symbol::delete_package $pkg;
1025	}
1026
1027	sub load_extensions {
1028	for my $ext (<$LIBDIR/*.ext>) {
1029	next unless -r $ext;
1030	eval {
1031	load_extension $ext;
1032	1
1033	} or warn "$ext not loaded: $@";
1034	}
1035	}
1036
1037	#############################################################################
1038	# load/save/clean perl data associated with a map
1039
1040	*cf::mapsupport::on_clean = sub {
1041	my ($map) = @_;
1042
1043	my $path = $map->tmpname;
1044	defined $path or return;
1045
1046	unlink "$path.pst";
1047	};
1048
1049	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1050
1051	#############################################################################
1052	# load/save perl data associated with player->ob objects
1053
1054	sub all_objects(@) {
1055	@_, map all_objects ($_->inv), @_
1056	}
1057
1058	# TODO: compatibility cruft, remove when no longer needed
1059	cf::player->attach (
1060	on_load => sub {
1061	my ($pl, $path) = @_;
1062
1063	for my $o (all_objects $pl->ob) {
1064	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1065	$o->set_ob_key_value ("_perl_data");
1066
1067	%$o = %{ Storable::thaw pack "H*", $value };
1068	}
1069	}
1070	},
1071	);
1072
1073	#############################################################################
1074
1075	=head2 CORE EXTENSIONS
1076
1077	Functions and methods that extend core crossfire objects.
1078
1079	=head3 cf::player
1080
1081	=over 4
1082
1083	=item cf::player::exists $login
1084
1085	Returns true when the given account exists.
1086
1087	=cut
1088
1089	sub cf::player::exists($) {
1090	cf::player::find $_[0]
1091	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1092	}
1093
1094	=item $player->ext_reply ($msgid, $msgtype, %msg)
1095
1096	Sends an ext reply to the player.
1097
1098	=cut
1099
1100	sub cf::player::ext_reply($$$%) {
1101	my ($self, $id, %msg) = @_;
1102
1103	$msg{msgid} = $id;
1104
1105	$self->send ("ext " . to_json \%msg);
1106	}	1495	}
1107		1496
1108	=back	1497	=back
1109
1110		1498
1111	=head3 cf::map	1499	=head3 cf::map
1112		1500
1113	=over 4	1501	=over 4
1114		1502
…		…
1117	package cf::map;	1505	package cf::map;
1118		1506
1119	use Fcntl;	1507	use Fcntl;
1120	use Coro::AIO;	1508	use Coro::AIO;
1121		1509
		1510	use overload
		1511	'""' => \&as_string,
		1512	fallback => 1;
		1513
1122	our $MAX_RESET = 3600;	1514	our $MAX_RESET = 3600;
1123	our $DEFAULT_RESET = 3000;	1515	our $DEFAULT_RESET = 3000;
1124		1516
1125	sub generate_random_map {	1517	sub generate_random_map {
1126	my ($path, $rmp) = @_;	1518	my ($self, $rmp) = @_;
1127
1128	# mit "rum" bekleckern, nicht	1519	# mit "rum" bekleckern, nicht
1129	cf::map::_create_random_map	1520	$self->_create_random_map (
1130	$path,
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1521	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1522	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1523	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1524	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1525	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1526	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1527	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1528	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1529	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1530	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(cf::region::find $rmp->{region})	1531	(cf::region::find $rmp->{region}), $rmp->{custom}
		1532	)
		1533	}
		1534
		1535	=item cf::map->register ($regex, $prio)
		1536
		1537	Register a handler for the map path matching the given regex at the
		1538	givne priority (higher is better, built-in handlers have priority 0, the
		1539	default).
		1540
		1541	=cut
		1542
		1543	sub register {
		1544	my (undef, $regex, $prio) = @_;
		1545	my $pkg = caller;
		1546
		1547	no strict;
		1548	push @{"$pkg\::ISA"}, __PACKAGE__;
		1549
		1550	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1551	}
		1552
		1553	# also paths starting with '/'
		1554	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1555
		1556	sub thawer_merge {
		1557	my ($self, $merge) = @_;
		1558
		1559	# we have to keep some variables in memory intact
		1560	local $self->{path};
		1561	local $self->{load_path};
		1562
		1563	$self->SUPER::thawer_merge ($merge);
		1564	}
		1565
		1566	sub normalise {
		1567	my ($path, $base) = @_;
		1568
		1569	$path = "$path"; # make sure its a string
		1570
		1571	$path =~ s/\.map$//;
		1572
		1573	# map plan:
		1574	#
		1575	# /! non-realised random map exit (special hack!)
		1576	# {... are special paths that are not being touched
		1577	# ?xxx/... are special absolute paths
		1578	# ?random/... random maps
		1579	# /... normal maps
		1580	# ~user/... per-player map of a specific user
		1581
		1582	$path =~ s/$PATH_SEP/\//go;
		1583
		1584	# treat it as relative path if it starts with
		1585	# something that looks reasonable
		1586	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1587	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1588
		1589	$base =~ s{[^/]+/?$}{};
		1590	$path = "$base/$path";
		1591	}
		1592
		1593	for ($path) {
		1594	redo if s{//}{/};
		1595	redo if s{/\.?/}{/};
		1596	redo if s{/[^/]+/\.\./}{/};
		1597	}
		1598
		1599	$path
		1600	}
		1601
		1602	sub new_from_path {
		1603	my (undef, $path, $base) = @_;
		1604
		1605	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1606
		1607	$path = normalise $path, $base;
		1608
		1609	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1610	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1611	my $self = bless cf::map::new, $pkg;
		1612	$self->{path} = $path; $self->path ($path);
		1613	$self->init; # pass $1 etc.
		1614	return $self;
		1615	}
		1616	}
		1617
		1618	Carp::carp "unable to resolve path '$path' (base '$base').";
		1619	()
		1620	}
		1621
		1622	sub init {
		1623	my ($self) = @_;
		1624
		1625	$self
		1626	}
		1627
		1628	sub as_string {
		1629	my ($self) = @_;
		1630
		1631	"$self->{path}"
		1632	}
		1633
		1634	# the displayed name, this is a one way mapping
		1635	sub visible_name {
		1636	&as_string
		1637	}
		1638
		1639	# the original (read-only) location
		1640	sub load_path {
		1641	my ($self) = @_;
		1642
		1643	"$MAPDIR/$self->{path}.map"
		1644	}
		1645
		1646	# the temporary/swap location
		1647	sub save_path {
		1648	my ($self) = @_;
		1649
		1650	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1651	"$TMPDIR/$path.map"
		1652	}
		1653
		1654	# the unique path, undef == no special unique path
		1655	sub uniq_path {
		1656	my ($self) = @_;
		1657
		1658	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1659	"$UNIQUEDIR/$path"
1142	}	1660	}
1143		1661
1144	# and all this just because we cannot iterate over	1662	# and all this just because we cannot iterate over
1145	# all maps in C++...	1663	# all maps in C++...
1146	sub change_all_map_light {	1664	sub change_all_map_light {
…		…
1148		1666
1149	$_->change_map_light ($change)	1667	$_->change_map_light ($change)
1150	for grep $_->outdoor, values %cf::MAP;	1668	for grep $_->outdoor, values %cf::MAP;
1151	}	1669	}
1152		1670
		1671	sub decay_objects {
		1672	my ($self) = @_;
		1673
		1674	return if $self->{deny_reset};
		1675
		1676	$self->do_decay_objects;
		1677	}
		1678
		1679	sub unlink_save {
		1680	my ($self) = @_;
		1681
		1682	utf8::encode (my $save = $self->save_path);
		1683	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1684	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1685	}
		1686
1153	sub try_load_header($) {	1687	sub load_header_from($) {
1154	my ($path) = @_;	1688	my ($self, $path) = @_;
1155		1689
1156	utf8::encode $path;	1690	utf8::encode $path;
1157	aio_open $path, O_RDONLY, 0	1691	#aio_open $path, O_RDONLY, 0
		1692	# or return;
		1693
		1694	$self->_load_header ($path)
1158	or return;	1695	or return;
1159		1696
1160	my $map = cf::map::new	1697	$self->{load_path} = $path;
		1698
		1699	1
		1700	}
		1701
		1702	sub load_header_orig {
		1703	my ($self) = @_;
		1704
		1705	$self->load_header_from ($self->load_path)
		1706	}
		1707
		1708	sub load_header_temp {
		1709	my ($self) = @_;
		1710
		1711	$self->load_header_from ($self->save_path)
		1712	}
		1713
		1714	sub prepare_temp {
		1715	my ($self) = @_;
		1716
		1717	$self->last_access ((delete $self->{last_access})
		1718	|| $cf::RUNTIME); #d#
		1719	# safety
		1720	$self->{instantiate_time} = $cf::RUNTIME
		1721	if $self->{instantiate_time} > $cf::RUNTIME;
		1722	}
		1723
		1724	sub prepare_orig {
		1725	my ($self) = @_;
		1726
		1727	$self->{load_original} = 1;
		1728	$self->{instantiate_time} = $cf::RUNTIME;
		1729	$self->last_access ($cf::RUNTIME);
		1730	$self->instantiate;
		1731	}
		1732
		1733	sub load_header {
		1734	my ($self) = @_;
		1735
		1736	if ($self->load_header_temp) {
		1737	$self->prepare_temp;
		1738	} else {
		1739	$self->load_header_orig
1161	or return;	1740	or return;
		1741	$self->prepare_orig;
		1742	}
1162		1743
1163	# for better error messages only, will be overwritten	1744	$self->{deny_reset} = 1
1164	$map->path ($path);	1745	if $self->no_reset;
1165		1746
1166	$map->load_header ($path)	1747	$self->default_region (cf::region::find_by_path $self->{path})
1167	or return;	1748	unless $self->default_region;
1168		1749
1169	$map->{load_path} = $path;	1750	1
1170
1171	$map
1172	}	1751	}
1173		1752
1174	sub find;	1753	sub find;
1175	sub find {	1754	sub find {
1176	my ($path, $origin) = @_;	1755	my ($path, $origin) = @_;
1177		1756
1178	#warn "find<$path,$origin>\n";#d#
1179
1180	$path = new cf::path $path, $origin && $origin->path;	1757	$path = normalise $path, $origin && $origin->path;
1181	my $key = $path->as_string;
1182		1758
1183	cf::lock_wait "map_find:$key";	1759	cf::lock_wait "map_find:$path";
1184		1760
1185	$cf::MAP{$key} || do {	1761	$cf::MAP{$path} || do {
1186	my $guard = cf::lock_acquire "map_find:$key";	1762	my $guard = cf::lock_acquire "map_find:$path";
1187		1763	my $map = new_from_path cf::map $path
1188	# do it the slow way
1189	my $map = try_load_header $path->save_path;
1190
1191	Coro::cede;
1192
1193	if ($map) {
1194	$map->last_access ((delete $map->{last_access})
1195	|| $cf::RUNTIME); #d#
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1764	or return;
1207		1765
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->last_access ($cf::RUNTIME);
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1766	$map->{last_save} = $cf::RUNTIME;
1220		1767
1221	Coro::cede;	1768	$map->load_header
		1769	or return;
1222		1770
1223	if ($map->should_reset) {	1771	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1772	# doing this can freeze the server in a sync job, obviously
		1773	#$cf::WAIT_FOR_TICK->wait;
1224	$map->reset;	1774	$map->reset;
1225	undef $guard;	1775	undef $guard;
1226	$map = find $path	1776	return find $path;
1227	or return;
1228	}	1777	}
1229		1778
1230	$cf::MAP{$key} = $map	1779	$cf::MAP{$path} = $map
1231	}	1780	}
1232	}	1781	}
		1782
		1783	sub pre_load { }
		1784	sub post_load { }
1233		1785
1234	sub load {	1786	sub load {
1235	my ($self) = @_;	1787	my ($self) = @_;
1236		1788
		1789	local $self->{deny_reset} = 1; # loading can take a long time
		1790
1237	my $path = $self->{path};	1791	my $path = $self->{path};
		1792
		1793	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1794	my $guard = cf::lock_acquire "map_load:$path";
1239		1795
1240	return if $self->in_memory != cf::MAP_SWAPPED;	1796	return if $self->in_memory != cf::MAP_SWAPPED;
1241		1797
1242	$self->in_memory (cf::MAP_LOADING);	1798	$self->in_memory (cf::MAP_LOADING);
1243		1799
1244	$self->alloc;	1800	$self->alloc;
		1801
		1802	$self->pre_load;
		1803	Coro::cede;
		1804
1245	$self->load_objects ($self->{load_path}, 1)	1805	$self->_load_objects ($self->{load_path}, 1)
1246	or return;	1806	or return;
1247		1807
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1808	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1249	if delete $self->{load_original};	1809	if delete $self->{load_original};
1250		1810
1251	if (my $uniq = $path->uniq_path) {	1811	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	1812	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	1813	if (aio_open $uniq, O_RDONLY, 0) {
1254	$self->clear_unique_items;	1814	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	1815	$self->_load_objects ($uniq, 0);
1256	}	1816	}
1257	}	1817	}
1258		1818
1259	Coro::cede;	1819	Coro::cede;
1260
1261	# now do the right thing for maps	1820	# now do the right thing for maps
1262	$self->link_multipart_objects;	1821	$self->link_multipart_objects;
1263
1264	if ($self->{path}->is_style_map) {
1265	$self->{deny_save} = 1;
1266	$self->{deny_reset} = 1;
1267	} else {
1268	$self->fix_auto_apply;
1269	$self->decay_objects;
1270	$self->update_buttons;
1271	$self->set_darkness_map;
1272	$self->difficulty ($self->estimate_difficulty)	1822	$self->difficulty ($self->estimate_difficulty)
1273	unless $self->difficulty;	1823	unless $self->difficulty;
		1824	Coro::cede;
		1825
		1826	unless ($self->{deny_activate}) {
		1827	$self->decay_objects;
		1828	$self->fix_auto_apply;
		1829	$self->update_buttons;
		1830	Coro::cede;
		1831	$self->set_darkness_map;
		1832	Coro::cede;
1274	$self->activate;	1833	$self->activate;
1275	}	1834	}
1276		1835
1277	Coro::cede;
1278
1279	$self->in_memory (cf::MAP_IN_MEMORY);	1836	$self->in_memory (cf::MAP_IN_MEMORY);
		1837	}
		1838
		1839	$self->post_load;
		1840	}
		1841
		1842	sub customise_for {
		1843	my ($self, $ob) = @_;
		1844
		1845	return find "~" . $ob->name . "/" . $self->{path}
		1846	if $self->per_player;
		1847
		1848	# return find "?party/" . $ob->name . "/" . $self->{path}
		1849	# if $self->per_party;
		1850
		1851	$self
		1852	}
		1853
		1854	# find and load all maps in the 3x3 area around a map
		1855	sub load_diag {
		1856	my ($map) = @_;
		1857
		1858	my @diag; # diagonal neighbours
		1859
		1860	for (0 .. 3) {
		1861	my $neigh = $map->tile_path ($_)
		1862	or next;
		1863	$neigh = find $neigh, $map
		1864	or next;
		1865	$neigh->load;
		1866
		1867	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1868	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1869	}
		1870
		1871	for (@diag) {
		1872	my $neigh = find @$_
		1873	or next;
		1874	$neigh->load;
		1875	}
1280	}	1876	}
1281		1877
1282	sub find_sync {	1878	sub find_sync {
1283	my ($path, $origin) = @_;	1879	my ($path, $origin) = @_;
1284		1880
1285	cf::sync_job { cf::map::find $path, $origin }	1881	cf::sync_job { find $path, $origin }
1286	}	1882	}
1287		1883
1288	sub do_load_sync {	1884	sub do_load_sync {
1289	my ($map) = @_;	1885	my ($map) = @_;
1290		1886
1291	cf::sync_job { $map->load };	1887	cf::sync_job { $map->load };
1292	}	1888	}
1293		1889
		1890	our %MAP_PREFETCH;
		1891	our $MAP_PREFETCHER = undef;
		1892
		1893	sub find_async {
		1894	my ($path, $origin) = @_;
		1895
		1896	$path = normalise $path, $origin && $origin->{path};
		1897
		1898	if (my $map = $cf::MAP{$path}) {
		1899	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1900	}
		1901
		1902	undef $MAP_PREFETCH{$path};
		1903	$MAP_PREFETCHER ||= cf::async {
		1904	while (%MAP_PREFETCH) {
		1905	for my $path (keys %MAP_PREFETCH) {
		1906	my $map = find $path
		1907	or next;
		1908	$map->load;
		1909
		1910	delete $MAP_PREFETCH{$path};
		1911	}
		1912	}
		1913	undef $MAP_PREFETCHER;
		1914	};
		1915	$MAP_PREFETCHER->prio (6);
		1916
		1917	()
		1918	}
		1919
1294	sub save {	1920	sub save {
1295	my ($self) = @_;	1921	my ($self) = @_;
1296		1922
1297	my $lock = cf::lock_acquire "map_data:" . $self->path;	1923	my $lock = cf::lock_acquire "map_data:" . $self->path;
1298		1924
1299	$self->{last_save} = $cf::RUNTIME;	1925	$self->{last_save} = $cf::RUNTIME;
1300		1926
1301	return unless $self->dirty;	1927	return unless $self->dirty;
1302		1928
1303	my $save = $self->{path}->save_path; utf8::encode $save;	1929	my $save = $self->save_path; utf8::encode $save;
1304	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1930	my $uniq = $self->uniq_path; utf8::encode $uniq;
1305		1931
1306	$self->{load_path} = $save;	1932	$self->{load_path} = $save;
1307		1933
1308	return if $self->{deny_save};	1934	return if $self->{deny_save};
1309		1935
1310	local $self->{last_access} = $self->last_access;#d#	1936	local $self->{last_access} = $self->last_access;#d#
1311		1937
		1938	cf::async {
		1939	$_->contr->save for $self->players;
		1940	};
		1941
1312	if ($uniq) {	1942	if ($uniq) {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1943	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1314	$self->save_objects ($uniq, cf::IO_UNIQUES);	1944	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1315	} else {	1945	} else {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1946	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1317	}	1947	}
1318	}	1948	}
1319		1949
1320	sub swap_out {	1950	sub swap_out {
1321	my ($self) = @_;	1951	my ($self) = @_;
…		…
1335		1965
1336	sub reset_at {	1966	sub reset_at {
1337	my ($self) = @_;	1967	my ($self) = @_;
1338		1968
1339	# TODO: safety, remove and allow resettable per-player maps	1969	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	1970	return 1e99 if $self->{deny_reset};
1342		1971
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1972	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1973	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1974
…		…
1350	my ($self) = @_;	1979	my ($self) = @_;
1351		1980
1352	$self->reset_at <= $cf::RUNTIME	1981	$self->reset_at <= $cf::RUNTIME
1353	}	1982	}
1354		1983
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	1984	sub reset {
1377	my ($self) = @_;	1985	my ($self) = @_;
1378		1986
1379	my $lock = cf::lock_acquire "map_data:" . $self->path;	1987	my $lock = cf::lock_acquire "map_data:$self->{path}";
1380		1988
1381	return if $self->players;	1989	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		1990
1384	warn "resetting map ", $self->path;#d#	1991	warn "resetting map ", $self->path;
		1992
		1993	$self->in_memory (cf::MAP_SWAPPED);
		1994
		1995	# need to save uniques path
		1996	unless ($self->{deny_save}) {
		1997	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1998
		1999	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2000	if $uniq;
		2001	}
1385		2002
1386	delete $cf::MAP{$self->path};	2003	delete $cf::MAP{$self->path};
		2004
		2005	$self->clear;
1387		2006
1388	$_->clear_links_to ($self) for values %cf::MAP;	2007	$_->clear_links_to ($self) for values %cf::MAP;
1389		2008
1390	$self->unlink_save;	2009	$self->unlink_save;
1391	$self->destroy;	2010	$self->destroy;
…		…
1394	my $nuke_counter = "aaaa";	2013	my $nuke_counter = "aaaa";
1395		2014
1396	sub nuke {	2015	sub nuke {
1397	my ($self) = @_;	2016	my ($self) = @_;
1398		2017
		2018	delete $cf::MAP{$self->path};
		2019
		2020	$self->unlink_save;
		2021
		2022	bless $self, "cf::map";
		2023	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2024	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2025	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2026	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2027
		2028	$cf::MAP{$self->path} = $self;
		2029
1402	$self->reset; # polite request, might not happen	2030	$self->reset; # polite request, might not happen
1403	}	2031	}
1404		2032
1405	sub customise_for {	2033	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2034
1408	if ($map->per_player) {	2035	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2036	maps. May block.
		2037
		2038	=cut
		2039
		2040	sub tmp_maps() {
1410	}	2041	[
1411		2042	map {
1412	$map	2043	utf8::decode $_;
		2044	/\.map$/
		2045	? normalise $_
		2046	: ()
		2047	} @{ aio_readdir $TMPDIR or [] }
		2048	]
1413	}	2049	}
1414		2050
1415	sub emergency_save {	2051	=item $maps = cf::map::random_maps
1416	my $freeze_guard = cf::freeze_mainloop;
1417		2052
1418	warn "enter emergency map save\n";	2053	Returns an arrayref with all map paths of currently instantiated and saved
		2054	random maps. May block.
1419		2055
1420	cf::sync_job {	2056	=cut
1421	warn "begin emergency map save\n";
1422	$_->save for values %cf::MAP;
1423	};
1424		2057
1425	warn "end emergency map save\n";	2058	sub random_maps() {
		2059	[
		2060	map {
		2061	utf8::decode $_;
		2062	/\.map$/
		2063	? normalise "?random/$_"
		2064	: ()
		2065	} @{ aio_readdir $RANDOMDIR or [] }
		2066	]
		2067	}
		2068
		2069	=item cf::map::unique_maps
		2070
		2071	Returns an arrayref of paths of all shared maps that have
		2072	instantiated unique items. May block.
		2073
		2074	=cut
		2075
		2076	sub unique_maps() {
		2077	[
		2078	map {
		2079	utf8::decode $_;
		2080	/\.map$/
		2081	? normalise $_
		2082	: ()
		2083	} @{ aio_readdir $UNIQUEDIR or [] }
		2084	]
1426	}	2085	}
1427		2086
1428	package cf;	2087	package cf;
1429		2088
1430	=back	2089	=back
1431		2090
		2091	=head3 cf::object
		2092
		2093	=cut
		2094
		2095	package cf::object;
		2096
		2097	=over 4
		2098
		2099	=item $ob->inv_recursive
		2100
		2101	Returns the inventory of the object _and_ their inventories, recursively.
		2102
		2103	=cut
		2104
		2105	sub inv_recursive_;
		2106	sub inv_recursive_ {
		2107	map { $_, inv_recursive_ $_->inv } @_
		2108	}
		2109
		2110	sub inv_recursive {
		2111	inv_recursive_ inv $_[0]
		2112	}
		2113
		2114	package cf;
		2115
		2116	=back
1432		2117
1433	=head3 cf::object::player	2118	=head3 cf::object::player
1434		2119
1435	=over 4	2120	=over 4
1436		2121
…		…
1450		2135
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2136	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2137
1453	if ($self->{record_replies}) {	2138	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2139	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2140
1455	} else {	2141	} else {
		2142	my $pl = $self->contr;
		2143
		2144	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2145	my $diag = $pl->{npc_dialog};
		2146	$diag->{pl}->ext_reply (
		2147	$diag->{id},
		2148	msgtype => "reply",
		2149	msg => $diag->{pl}->expand_cfpod ($msg),
		2150	add_topics => []
		2151	);
		2152
		2153	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2154	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2155	$self->message ($msg, $flags);
		2156	}
1458	}	2157	}
1459	}	2158	}
1460		2159
1461	=item $player_object->may ("access")	2160	=item $player_object->may ("access")
1462		2161
…		…
1476		2175
1477	=item $player_object->enter_link	2176	=item $player_object->enter_link
1478		2177
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2178	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2179
1481	The player should be reaosnably safe there for short amounts of time. You	2180	The player should be reasonably safe there for short amounts of time. You
1482	I<MUST> call C<leave_link> as soon as possible, though.	2181	I<MUST> call C<leave_link> as soon as possible, though.
1483		2182
		2183	Will never block.
		2184
1484	=item $player_object->leave_link ($map, $x, $y)	2185	=item $player_object->leave_link ($map, $x, $y)
1485		2186
1486	Moves the player out of the specila link map onto the given map. If the	2187	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2188	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2189	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2190	fails, to the emergency map position.
1490		2191
1491	Might block.	2192	Might block.
1492		2193
1493	=cut	2194	=cut
		2195
		2196	sub link_map {
		2197	unless ($LINK_MAP) {
		2198	$LINK_MAP = cf::map::find "{link}"
		2199	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2200	$LINK_MAP->load;
		2201	}
		2202
		2203	$LINK_MAP
		2204	}
1494		2205
1495	sub cf::object::player::enter_link {	2206	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2207	my ($self) = @_;
1497		2208
1498	$self->deactivate_recursive;	2209	$self->deactivate_recursive;
1499		2210
1500	return if $self->map == $LINK_MAP;	2211	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2212
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2213	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2214	if $self->map && $self->map->{path} ne "{link}";
1504		2215
1505	$self->enter_map ($LINK_MAP, 20, 20);	2216	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	2217	}
1507		2218
1508	sub cf::object::player::leave_link {	2219	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2220	my ($self, $map, $x, $y) = @_;
		2221
		2222	return unless $self->contr->active;
1510		2223
1511	my $link_pos = delete $self->{_link_pos};	2224	my $link_pos = delete $self->{_link_pos};
1512		2225
1513	unless ($map) {	2226	unless ($map) {
1514	# restore original map position	2227	# restore original map position
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	2241	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2242	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2243	if $x <=0 && $y <= 0;
1531		2244
1532	$map->load;	2245	$map->load;
		2246	$map->load_diag;
1533		2247
		2248	return unless $self->contr->active;
1534	$self->activate_recursive;	2249	$self->activate_recursive;
		2250
		2251	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	2252	$self->enter_map ($map, $x, $y);
1536	}	2253	}
1537		2254
1538	cf::player->attach (
1539	on_logout => sub {
1540	my ($pl) = @_;
1541
1542	# abort map switching before logout
1543	if ($pl->ob->{_link_pos}) {
1544	cf::sync_job {
1545	$pl->ob->leave_link
1546	};
1547	}
1548	},
1549	on_login => sub {
1550	my ($pl) = @_;
1551
1552	# try to abort aborted map switching on player login :)
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555
1556	$pl->ob->enter_link;
1557	(async {
1558	# we need this sleep as the login has a concurrent enter_exit running
1559	# and this sleep increases chances of the player not ending up in scorn
1560	$pl->ob->reply (undef,
1561	"There was an internal problem at your last logout, "
1562	. "the server will try to bring you to your intended destination in a second.",
1563	cf::NDI_RED);
1564	Coro::Timer::sleep 1;
1565	$pl->ob->leave_link;
1566	})->prio (2);
1567	}
1568	},
1569	);
1570
1571	=item $player_object->goto ($path, $x, $y)	2255	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1572		2256
		2257	Moves the player to the given map-path and coordinates by first freezing
		2258	her, loading and preparing them map, calling the provided $check callback
		2259	that has to return the map if sucecssful, and then unfreezes the player on
		2260	the new (success) or old (failed) map position.
		2261
1573	=cut	2262	=cut
		2263
		2264	our $GOTOGEN;
1574		2265
1575	sub cf::object::player::goto {	2266	sub cf::object::player::goto {
1576	my ($self, $path, $x, $y) = @_;	2267	my ($self, $path, $x, $y, $check) = @_;
		2268
		2269	# do generation counting so two concurrent goto's will be executed in-order
		2270	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1577		2271
1578	$self->enter_link;	2272	$self->enter_link;
1579		2273
1580	(async {	2274	(async {
1581	$path = new cf::path $path;	2275	my $map = eval {
1582
1583	my $map = cf::map::find $path->as_string;	2276	my $map = cf::map::find $path;
		2277
		2278	if ($map) {
1584	$map = $map->customise_for ($self) if $map;	2279	$map = $map->customise_for ($self);
1585		2280	$map = $check->($map) if $check && $map;
1586	# warn "entering ", $map->path, " at ($x, $y)\n"	2281	} else {
1587	# if $map;
1588
1589	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2282	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2283	}
1590		2284
		2285	$map
		2286	};
		2287
		2288	if ($@) {
		2289	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2290	LOG llevError | logBacktrace, Carp::longmess $@;
		2291	}
		2292
		2293	if ($gen == $self->{_goto_generation}) {
		2294	delete $self->{_goto_generation};
1591	$self->leave_link ($map, $x, $y);	2295	$self->leave_link ($map, $x, $y);
		2296	}
1592	})->prio (1);	2297	})->prio (1);
1593	}	2298	}
1594		2299
1595	=item $player_object->enter_exit ($exit_object)	2300	=item $player_object->enter_exit ($exit_object)
1596		2301
…		…
1598		2303
1599	sub parse_random_map_params {	2304	sub parse_random_map_params {
1600	my ($spec) = @_;	2305	my ($spec) = @_;
1601		2306
1602	my $rmp = { # defaults	2307	my $rmp = { # defaults
1603	xsize => 10,	2308	xsize => (cf::rndm 15, 40),
1604	ysize => 10,	2309	ysize => (cf::rndm 15, 40),
		2310	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2311	#layout => string,
1605	};	2312	};
1606		2313
1607	for (split /\n/, $spec) {	2314	for (split /\n/, $spec) {
1608	my ($k, $v) = split /\s+/, $_, 2;	2315	my ($k, $v) = split /\s+/, $_, 2;
1609		2316
…		…
1613	$rmp	2320	$rmp
1614	}	2321	}
1615		2322
1616	sub prepare_random_map {	2323	sub prepare_random_map {
1617	my ($exit) = @_;	2324	my ($exit) = @_;
		2325
		2326	my $guard = cf::lock_acquire "exit_prepare:$exit";
1618		2327
1619	# all this does is basically replace the /! path by	2328	# all this does is basically replace the /! path by
1620	# a new random map path (?random/...) with a seed	2329	# a new random map path (?random/...) with a seed
1621	# that depends on the exit object	2330	# that depends on the exit object
1622		2331
1623	my $rmp = parse_random_map_params $exit->msg;	2332	my $rmp = parse_random_map_params $exit->msg;
1624		2333
1625	if ($exit->map) {	2334	if ($exit->map) {
1626	$rmp->{region} = $exit->map->region_name;	2335	$rmp->{region} = $exit->region->name;
1627	$rmp->{origin_map} = $exit->map->path;	2336	$rmp->{origin_map} = $exit->map->path;
1628	$rmp->{origin_x} = $exit->x;	2337	$rmp->{origin_x} = $exit->x;
1629	$rmp->{origin_y} = $exit->y;	2338	$rmp->{origin_y} = $exit->y;
1630	}	2339	}
1631		2340
1632	$rmp->{random_seed} ||= $exit->random_seed;	2341	$rmp->{random_seed} ||= $exit->random_seed;
1633		2342
1634	my $data = cf::to_json $rmp;	2343	my $data = cf::to_json $rmp;
1635	my $md5 = Digest::MD5::md5_hex $data;	2344	my $md5 = Digest::MD5::md5_hex $data;
		2345	my $meta = "$RANDOMDIR/$md5.meta";
1636		2346
1637	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2347	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1638	aio_write $fh, 0, (length $data), $data, 0;	2348	aio_write $fh, 0, (length $data), $data, 0;
		2349	undef $fh;
		2350	aio_rename "$meta~", $meta;
1639		2351
1640	$exit->slaying ("?random/$md5");	2352	$exit->slaying ("?random/$md5");
1641	$exit->msg (undef);	2353	$exit->msg (undef);
1642	}	2354	}
1643	}	2355	}
…		…
1645	sub cf::object::player::enter_exit {	2357	sub cf::object::player::enter_exit {
1646	my ($self, $exit) = @_;	2358	my ($self, $exit) = @_;
1647		2359
1648	return unless $self->type == cf::PLAYER;	2360	return unless $self->type == cf::PLAYER;
1649		2361
		2362	if ($exit->slaying eq "/!") {
		2363	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2364	# the problem is that $exit might not survive long enough
		2365	# so it needs to be done right now, right here
		2366	cf::sync_job { prepare_random_map $exit };
		2367	}
		2368
		2369	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2370	my $hp = $exit->stats->hp;
		2371	my $sp = $exit->stats->sp;
		2372
1650	$self->enter_link;	2373	$self->enter_link;
		2374
		2375	# if exit is damned, update players death & WoR home-position
		2376	$self->contr->savebed ($slaying, $hp, $sp)
		2377	if $exit->flag (FLAG_DAMNED);
1651		2378
1652	(async {	2379	(async {
1653	$self->deactivate_recursive; # just to be sure	2380	$self->deactivate_recursive; # just to be sure
1654	unless (eval {	2381	unless (eval {
1655	prepare_random_map $exit	2382	$self->goto ($slaying, $hp, $sp);
1656	if $exit->slaying eq "/!";
1657
1658	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1659	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1660		2383
1661	1;	2384	1;
1662	}) {	2385	}) {
1663	$self->message ("Something went wrong deep within the crossfire server. "	2386	$self->message ("Something went wrong deep within the crossfire server. "
1664	. "I'll try to bring you back to the map you were before. "	2387	. "I'll try to bring you back to the map you were before. "
1665	. "Please report this to the dungeon master",	2388	. "Please report this to the dungeon master!",
1666	cf::NDI_UNIQUE | cf::NDI_RED);	2389	cf::NDI_UNIQUE | cf::NDI_RED);
1667		2390
1668	warn "ERROR in enter_exit: $@";	2391	warn "ERROR in enter_exit: $@";
1669	$self->leave_link;	2392	$self->leave_link;
1670	}	2393	}
1671	})->prio (1);	2394	})->prio (1);
…		…
1684		2407
1685	sub cf::client::send_drawinfo {	2408	sub cf::client::send_drawinfo {
1686	my ($self, $text, $flags) = @_;	2409	my ($self, $text, $flags) = @_;
1687		2410
1688	utf8::encode $text;	2411	utf8::encode $text;
1689	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2412	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1690	}	2413	}
1691		2414
		2415	=item $client->send_msg ($color, $type, $msg, [extra...])
		2416
		2417	Send a drawinfo or msg packet to the client, formatting the msg for the
		2418	client if neccessary. C<$type> should be a string identifying the type of
		2419	the message, with C<log> being the default. If C<$color> is negative, suppress
		2420	the message unless the client supports the msg packet.
		2421
		2422	=cut
		2423
		2424	sub cf::client::send_msg {
		2425	my ($self, $color, $type, $msg, @extra) = @_;
		2426
		2427	$msg = $self->pl->expand_cfpod ($msg);
		2428
		2429	return unless @extra || length $msg;
		2430
		2431	if ($self->can_msg) {
		2432	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2433	} else {
		2434	# replace some tags by gcfclient-compatible ones
		2435	for ($msg) {
		2436	1 while
		2437	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2438	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2439	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2440	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2441	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2442	}
		2443
		2444	if ($color >= 0) {
		2445	if (0 && $msg =~ /\[/) {
		2446	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2447	} else {
		2448	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2449	$self->send_packet ("drawinfo $color $msg")
		2450	}
		2451	}
		2452	}
		2453	}
		2454
		2455	=item $client->ext_event ($type, %msg)
		2456
		2457	Sends an ext event to the client.
		2458
		2459	=cut
		2460
		2461	sub cf::client::ext_event($$%) {
		2462	my ($self, $type, %msg) = @_;
		2463
		2464	$msg{msgtype} = "event_$type";
		2465	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2466	}
1692		2467
1693	=item $success = $client->query ($flags, "text", \&cb)	2468	=item $success = $client->query ($flags, "text", \&cb)
1694		2469
1695	Queues a query to the client, calling the given callback with	2470	Queues a query to the client, calling the given callback with
1696	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2471	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1697	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2472	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1698		2473
1699	Queries can fail, so check the return code. Or don't, as queries will become	2474	Queries can fail, so check the return code. Or don't, as queries will
1700	reliable at some point in the future.	2475	become reliable at some point in the future.
1701		2476
1702	=cut	2477	=cut
1703		2478
1704	sub cf::client::query {	2479	sub cf::client::query {
1705	my ($self, $flags, $text, $cb) = @_;	2480	my ($self, $flags, $text, $cb) = @_;
…		…
1713	utf8::encode $text;	2488	utf8::encode $text;
1714	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2489	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1715		2490
1716	$self->send_packet ($self->{query_queue}[0][0])	2491	$self->send_packet ($self->{query_queue}[0][0])
1717	if @{ $self->{query_queue} } == 1;	2492	if @{ $self->{query_queue} } == 1;
		2493
		2494	1
1718	}	2495	}
1719		2496
1720	cf::client->attach (	2497	cf::client->attach (
		2498	on_connect => sub {
		2499	my ($ns) = @_;
		2500
		2501	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2502	},
1721	on_reply => sub {	2503	on_reply => sub {
1722	my ($ns, $msg) = @_;	2504	my ($ns, $msg) = @_;
1723		2505
1724	# this weird shuffling is so that direct followup queries	2506	# this weird shuffling is so that direct followup queries
1725	# get handled first	2507	# get handled first
1726	my $queue = delete $ns->{query_queue}	2508	my $queue = delete $ns->{query_queue}
1727	or return; # be conservative, not sure how that can happen, but we saw a crash here	2509	or return; # be conservative, not sure how that can happen, but we saw a crash here
1728		2510
1729	(shift @$queue)->[1]->($msg);	2511	(shift @$queue)->[1]->($msg);
		2512	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1730		2513
1731	push @{ $ns->{query_queue} }, @$queue;	2514	push @{ $ns->{query_queue} }, @$queue;
1732		2515
1733	if (@{ $ns->{query_queue} } == @$queue) {	2516	if (@{ $ns->{query_queue} } == @$queue) {
1734	if (@$queue) {	2517	if (@$queue) {
…		…
1736	} else {	2519	} else {
1737	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2520	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1738	}	2521	}
1739	}	2522	}
1740	},	2523	},
		2524	on_exticmd => sub {
		2525	my ($ns, $buf) = @_;
		2526
		2527	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2528
		2529	if (ref $msg) {
		2530	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2531	if (my %reply = $cb->($ns, $msg)) {
		2532	$reply{msgid} = $msg->{msgid};
		2533	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2534	}
		2535	}
		2536	} else {
		2537	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2538	}
		2539
		2540	cf::override;
		2541	},
1741	);	2542	);
1742		2543
1743	=item $client->async (\&cb)	2544	=item $client->async (\&cb)
1744		2545
1745	Create a new coroutine, running the specified callback. The coroutine will	2546	Create a new coroutine, running the specified callback. The coroutine will
…		…
1792		2593
1793	# here we export the classes and methods available to script code	2594	# here we export the classes and methods available to script code
1794		2595
1795	=pod	2596	=pod
1796		2597
1797	The following fucntions and emthods are available within a safe environment:	2598	The following functions and methods are available within a safe environment:
1798		2599
1799	cf::object contr pay_amount pay_player map	2600	cf::object
		2601	contr pay_amount pay_player map x y force_find force_add
		2602	insert remove
		2603
1800	cf::object::player player	2604	cf::object::player
1801	cf::player peaceful	2605	player
1802	cf::map trigger	2606
		2607	cf::player
		2608	peaceful
		2609
		2610	cf::map
		2611	trigger
1803		2612
1804	=cut	2613	=cut
1805		2614
1806	for (	2615	for (
1807	["cf::object" => qw(contr pay_amount pay_player map)],	2616	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2617	insert remove)],
1808	["cf::object::player" => qw(player)],	2618	["cf::object::player" => qw(player)],
1809	["cf::player" => qw(peaceful)],	2619	["cf::player" => qw(peaceful)],
1810	["cf::map" => qw(trigger)],	2620	["cf::map" => qw(trigger)],
1811	) {	2621	) {
1812	no strict 'refs';	2622	no strict 'refs';
…		…
1883	=back	2693	=back
1884		2694
1885	=cut	2695	=cut
1886		2696
1887	#############################################################################	2697	#############################################################################
		2698	# the server's init and main functions
1888		2699
1889	=head2 EXTENSION DATABASE SUPPORT	2700	sub load_facedata($) {
		2701	my ($path) = @_;
1890		2702
1891	Crossfire maintains a very simple database for extension use. It can	2703	warn "loading facedata from $path\n";
1892	currently store anything that can be serialised using Storable, which
1893	excludes objects.
1894		2704
1895	The parameter C<$family> should best start with the name of the extension	2705	my $facedata;
1896	using it, it should be unique.	2706	0 < aio_load $path, $facedata
		2707	or die "$path: $!";
1897		2708
1898	=over 4	2709	$facedata = Coro::Storable::thaw $facedata;
1899		2710
1900	=item $hashref = cf::db_get $family	2711	$facedata->{version} == 2
		2712	or cf::cleanup "$path: version mismatch, cannot proceed.";
1901		2713
1902	Return a hashref for use by the extension C<$family>, which can be
1903	modified. After modifications, you have to call C<cf::db_dirty> or
1904	C<cf::db_sync>.
1905
1906	=item $value = cf::db_get $family => $key
1907
1908	Returns a single value from the database
1909
1910	=item cf::db_put $family => $hashref
1911
1912	Stores the given family hashref into the database. Updates are delayed, if
1913	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1914
1915	=item cf::db_put $family => $key => $value
1916
1917	Stores the given C<$value> in the family hash. Updates are delayed, if you
1918	want the data to be synced to disk immediately, use C<cf::db_sync>.
1919
1920	=item cf::db_dirty
1921
1922	Marks the database as dirty, to be updated at a later time.
1923
1924	=item cf::db_sync
1925
1926	Immediately write the database to disk I<if it is dirty>.
1927
1928	=cut
1929
1930	our $DB;
1931
1932	{
1933	my $path = cf::localdir . "/database.pst";
1934
1935	sub db_load() {
1936	$DB = stat $path ? Storable::retrieve $path : { };
1937	}	2714	{
		2715	my $faces = $facedata->{faceinfo};
1938		2716
1939	my $pid;	2717	while (my ($face, $info) = each %$faces) {
1940		2718	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1941	sub db_save() {	2719	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1942	waitpid $pid, 0 if $pid;	2720	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1943	if (0 == ($pid = fork)) {	2721	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1944	$DB->{_meta}{version} = 1;	2722	Coro::cede;
1945	Storable::nstore $DB, "$path~";
1946	rename "$path~", $path;
1947	cf::_exit 0 if defined $pid;
1948	}
1949	}
1950
1951	my $dirty;
1952
1953	sub db_sync() {
1954	db_save if $dirty;
1955	undef $dirty;
1956	}
1957
1958	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1959	db_sync;
1960	});
1961
1962	sub db_dirty() {
1963	$dirty = 1;
1964	$idle->start;
1965	}
1966
1967	sub db_get($;$) {
1968	@_ >= 2
1969	? $DB->{$_[0]}{$_[1]}
1970	: ($DB->{$_[0]} ||= { })
1971	}
1972
1973	sub db_put($$;$) {
1974	if (@_ >= 3) {
1975	$DB->{$_[0]}{$_[1]} = $_[2];
1976	} else {
1977	$DB->{$_[0]} = $_[1];
1978	}
1979	db_dirty;
1980	}
1981
1982	cf::global->attach (
1983	prio => 10000,
1984	on_cleanup => sub {
1985	db_sync;
1986	},	2723	}
1987	);
1988	}
1989		2724
1990	#############################################################################	2725	while (my ($face, $info) = each %$faces) {
1991	# the server's main()	2726	next unless $info->{smooth};
		2727	my $idx = cf::face::find $face
		2728	or next;
		2729	if (my $smooth = cf::face::find $info->{smooth}) {
		2730	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2731	} else {
		2732	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2733	}
		2734	Coro::cede;
		2735	}
		2736	}
		2737
		2738	{
		2739	my $anims = $facedata->{animinfo};
		2740
		2741	while (my ($anim, $info) = each %$anims) {
		2742	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2743	Coro::cede;
		2744	}
		2745
		2746	cf::anim::invalidate_all; # d'oh
		2747	}
		2748
		2749	1
		2750	}
		2751
		2752	sub reload_regions {
		2753	load_resource_file "$MAPDIR/regions"
		2754	or die "unable to load regions file\n";
		2755	}
		2756
		2757	sub reload_facedata {
		2758	load_facedata "$DATADIR/facedata"
		2759	or die "unable to load facedata\n";
		2760	}
		2761
		2762	sub reload_archetypes {
		2763	load_resource_file "$DATADIR/archetypes"
		2764	or die "unable to load archetypes\n";
		2765	#d# NEED to laod twice to resolve forward references
		2766	# this really needs to be done in an extra post-pass
		2767	# (which needs to be synchronous, so solve it differently)
		2768	load_resource_file "$DATADIR/archetypes"
		2769	or die "unable to load archetypes\n";
		2770	}
		2771
		2772	sub reload_treasures {
		2773	load_resource_file "$DATADIR/treasures"
		2774	or die "unable to load treasurelists\n";
		2775	}
		2776
		2777	sub reload_resources {
		2778	warn "reloading resource files...\n";
		2779
		2780	reload_regions;
		2781	reload_facedata;
		2782	#reload_archetypes;#d#
		2783	reload_archetypes;
		2784	reload_treasures;
		2785
		2786	warn "finished reloading resource files\n";
		2787	}
		2788
		2789	sub init {
		2790	reload_resources;
		2791	}
1992		2792
1993	sub cfg_load {	2793	sub cfg_load {
1994	open my $fh, "<:utf8", cf::confdir . "/config"	2794	open my $fh, "<:utf8", "$CONFDIR/config"
1995	or return;	2795	or return;
1996		2796
1997	local $/;	2797	local $/;
1998	*CFG = YAML::Syck::Load <$fh>;	2798	*CFG = YAML::Syck::Load <$fh>;
1999		2799
…		…
2002	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2802	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2003	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2803	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2004		2804
2005	if (exists $CFG{mlockall}) {	2805	if (exists $CFG{mlockall}) {
2006	eval {	2806	eval {
2007	$CFG{mlockall} ? &mlockall : &munlockall	2807	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2008	and die "WARNING: m(un)lockall failed: $!\n";	2808	and die "WARNING: m(un)lockall failed: $!\n";
2009	};	2809	};
2010	warn $@ if $@;	2810	warn $@ if $@;
2011	}	2811	}
2012	}	2812	}
2013		2813
2014	sub main {	2814	sub main {
2015	# we must not ever block the main coroutine	2815	# we must not ever block the main coroutine
2016	local $Coro::idle = sub {	2816	local $Coro::idle = sub {
2017	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2817	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2818	(async {
2018	async { Event::one_event };	2819	Event::one_event;
		2820	})->prio (Coro::PRIO_MAX);
2019	};	2821	};
2020		2822
2021	cfg_load;	2823	cfg_load;
2022	db_load;	2824	db_init;
2023	load_extensions;	2825	load_extensions;
		2826
		2827	$TICK_WATCHER->start;
2024	Event::loop;	2828	Event::loop;
2025	}	2829	}
2026		2830
2027	#############################################################################	2831	#############################################################################
2028	# initialisation	2832	# initialisation and cleanup
2029		2833
		2834	# install some emergency cleanup handlers
		2835	BEGIN {
		2836	for my $signal (qw(INT HUP TERM)) {
		2837	Event->signal (
		2838	reentrant => 0,
		2839	data => WF_AUTOCANCEL,
		2840	signal => $signal,
		2841	prio => 0,
		2842	cb => sub {
		2843	cf::cleanup "SIG$signal";
		2844	},
		2845	);
		2846	}
		2847	}
		2848
		2849	sub write_runtime {
		2850	my $runtime = "$LOCALDIR/runtime";
		2851
		2852	# first touch the runtime file to show we are still running:
		2853	# the fsync below can take a very very long time.
		2854
		2855	IO::AIO::aio_utime $runtime, undef, undef;
		2856
		2857	my $guard = cf::lock_acquire "write_runtime";
		2858
		2859	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2860	or return;
		2861
		2862	my $value = $cf::RUNTIME + 90 + 10;
		2863	# 10 is the runtime save interval, for a monotonic clock
		2864	# 60 allows for the watchdog to kill the server.
		2865
		2866	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2867	and return;
		2868
		2869	# always fsync - this file is important
		2870	aio_fsync $fh
		2871	and return;
		2872
		2873	# touch it again to show we are up-to-date
		2874	aio_utime $fh, undef, undef;
		2875
		2876	close $fh
		2877	or return;
		2878
		2879	aio_rename "$runtime~", $runtime
		2880	and return;
		2881
		2882	warn "runtime file written.\n";
		2883
		2884	1
		2885	}
		2886
		2887	sub emergency_save() {
		2888	my $freeze_guard = cf::freeze_mainloop;
		2889
		2890	warn "enter emergency perl save\n";
		2891
		2892	cf::sync_job {
		2893	# use a peculiar iteration method to avoid tripping on perl
		2894	# refcount bugs in for. also avoids problems with players
		2895	# and maps saved/destroyed asynchronously.
		2896	warn "begin emergency player save\n";
		2897	for my $login (keys %cf::PLAYER) {
		2898	my $pl = $cf::PLAYER{$login} or next;
		2899	$pl->valid or next;
		2900	$pl->save;
		2901	}
		2902	warn "end emergency player save\n";
		2903
		2904	warn "begin emergency map save\n";
		2905	for my $path (keys %cf::MAP) {
		2906	my $map = $cf::MAP{$path} or next;
		2907	$map->valid or next;
		2908	$map->save;
		2909	}
		2910	warn "end emergency map save\n";
		2911
		2912	warn "begin emergency database checkpoint\n";
		2913	BDB::db_env_txn_checkpoint $DB_ENV;
		2914	warn "end emergency database checkpoint\n";
		2915	};
		2916
		2917	warn "leave emergency perl save\n";
		2918	}
		2919
		2920	sub post_cleanup {
		2921	my ($make_core) = @_;
		2922
		2923	warn Carp::longmess "post_cleanup backtrace"
		2924	if $make_core;
		2925	}
		2926
2030	sub reload() {	2927	sub do_reload_perl() {
2031	# can/must only be called in main	2928	# can/must only be called in main
2032	if ($Coro::current != $Coro::main) {	2929	if ($Coro::current != $Coro::main) {
2033	warn "can only reload from main coroutine\n";	2930	warn "can only reload from main coroutine";
2034	return;	2931	return;
2035	}	2932	}
2036		2933
2037	warn "reloading...";	2934	warn "reloading...";
2038		2935
2039	my $guard = freeze_mainloop;	2936	warn "entering sync_job";
		2937
		2938	cf::sync_job {
		2939	cf::write_runtime; # external watchdog should not bark
2040	cf::emergency_save;	2940	cf::emergency_save;
		2941	cf::write_runtime; # external watchdog should not bark
2041		2942
2042	eval {	2943	warn "syncing database to disk";
		2944	BDB::db_env_txn_checkpoint $DB_ENV;
		2945
2043	# if anything goes wrong in here, we should simply crash as we already saved	2946	# if anything goes wrong in here, we should simply crash as we already saved
2044		2947
2045	# cancel all watchers	2948	warn "cancelling all WF_AUTOCANCEL watchers";
2046	for (Event::all_watchers) {	2949	for (Event::all_watchers) {
2047	$_->cancel if $_->data & WF_AUTOCANCEL;	2950	$_->cancel if $_->data & WF_AUTOCANCEL;
2048	}	2951	}
2049		2952
		2953	warn "flushing outstanding aio requests";
		2954	for (;;) {
		2955	BDB::flush;
		2956	IO::AIO::flush;
		2957	Coro::cede;
		2958	last unless IO::AIO::nreqs || BDB::nreqs;
		2959	warn "iterate...";
		2960	}
		2961
		2962	++$RELOAD;
		2963
2050	# cancel all extension coros	2964	warn "cancelling all extension coros";
2051	$_->cancel for values %EXT_CORO;	2965	$_->cancel for values %EXT_CORO;
2052	%EXT_CORO = ();	2966	%EXT_CORO = ();
2053		2967
2054	# unload all extensions	2968	warn "removing commands";
2055	for (@exts) {	2969	%COMMAND = ();
		2970
		2971	warn "removing ext/exti commands";
		2972	%EXTCMD = ();
		2973	%EXTICMD = ();
		2974
		2975	warn "unloading/nuking all extensions";
		2976	for my $pkg (@EXTS) {
2056	warn "unloading <$_>";	2977	warn "... unloading $pkg";
2057	unload_extension $_;	2978
		2979	if (my $cb = $pkg->can ("unload")) {
		2980	eval {
		2981	$cb->($pkg);
		2982	1
		2983	} or warn "$pkg unloaded, but with errors: $@";
2058	}	2984	}
2059		2985
		2986	warn "... nuking $pkg";
		2987	Symbol::delete_package $pkg;
		2988	}
		2989
2060	# unload all modules loaded from $LIBDIR	2990	warn "unloading all perl modules loaded from $LIBDIR";
2061	while (my ($k, $v) = each %INC) {	2991	while (my ($k, $v) = each %INC) {
2062	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2992	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2063		2993
2064	warn "removing <$k>";	2994	warn "... unloading $k";
2065	delete $INC{$k};	2995	delete $INC{$k};
2066		2996
2067	$k =~ s/\.pm$//;	2997	$k =~ s/\.pm$//;
2068	$k =~ s/\//::/g;	2998	$k =~ s/\//::/g;
2069		2999
…		…
2072	}	3002	}
2073		3003
2074	Symbol::delete_package $k;	3004	Symbol::delete_package $k;
2075	}	3005	}
2076		3006
2077	# sync database to disk
2078	cf::db_sync;
2079	IO::AIO::flush;
2080
2081	# get rid of safe::, as good as possible	3007	warn "getting rid of safe::, as good as possible";
2082	Symbol::delete_package "safe::$_"	3008	Symbol::delete_package "safe::$_"
2083	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3009	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2084		3010
2085	# remove register_script_function callbacks
2086	# TODO
2087
2088	# unload cf.pm "a bit"	3011	warn "unloading cf.pm \"a bit\"";
2089	delete $INC{"cf.pm"};	3012	delete $INC{"cf.pm"};
		3013	delete $INC{"cf/pod.pm"};
2090		3014
2091	# don't, removes xs symbols, too,	3015	# don't, removes xs symbols, too,
2092	# and global variables created in xs	3016	# and global variables created in xs
2093	#Symbol::delete_package __PACKAGE__;	3017	#Symbol::delete_package __PACKAGE__;
2094		3018
2095	# reload cf.pm	3019	warn "unload completed, starting to reload now";
		3020
2096	warn "reloading cf.pm";	3021	warn "reloading cf.pm";
2097	require cf;	3022	require cf;
2098	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3023	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2099		3024
2100	# load config and database again	3025	warn "loading config and database again";
2101	cf::cfg_load;	3026	cf::cfg_load;
2102	cf::db_load;
2103		3027
2104	# load extensions
2105	warn "load extensions";	3028	warn "loading extensions";
2106	cf::load_extensions;	3029	cf::load_extensions;
2107		3030
2108	# reattach attachments to objects	3031	warn "reattaching attachments to objects/players";
2109	warn "reattach";	3032	_global_reattach; # objects, sockets
2110	_global_reattach;	3033	warn "reattaching attachments to maps";
2111	};	3034	reattach $_ for values %MAP;
		3035	warn "reattaching attachments to players";
		3036	reattach $_ for values %PLAYER;
2112		3037
2113	if ($@) {	3038	warn "leaving sync_job";
		3039
		3040	1
		3041	} or do {
2114	warn $@;	3042	warn $@;
2115	warn "error while reloading, exiting.";	3043	warn "error while reloading, exiting.";
2116	exit 1;	3044	exit 1;
2117	}	3045	};
2118		3046
2119	warn "reloaded successfully";	3047	warn "reloaded";
2120	};	3048	};
2121		3049
2122	#############################################################################	3050	our $RELOAD_WATCHER; # used only during reload
2123		3051
2124	unless ($LINK_MAP) {	3052	sub reload_perl() {
2125	$LINK_MAP = cf::map::new;	3053	# doing reload synchronously and two reloads happen back-to-back,
		3054	# coro crashes during coro_state_free->destroy here.
2126		3055
2127	$LINK_MAP->width (41);	3056	$RELOAD_WATCHER ||= Event->timer (
2128	$LINK_MAP->height (41);	3057	reentrant => 0,
2129	$LINK_MAP->alloc;
2130	$LINK_MAP->path ("{link}");
2131	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2132	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2133
2134	# dirty hack because... archetypes are not yet loaded
2135	Event->timer (
2136	after => 2,	3058	after => 0,
		3059	data => WF_AUTOCANCEL,
2137	cb => sub {	3060	cb => sub {
2138	$_[0]->w->cancel;	3061	do_reload_perl;
2139		3062	undef $RELOAD_WATCHER;
2140	# provide some exits "home"
2141	my $exit = cf::object::new "exit";
2142
2143	$exit->slaying ($EMERGENCY_POSITION->[0]);
2144	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2145	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2146
2147	$LINK_MAP->insert ($exit->clone, 19, 19);
2148	$LINK_MAP->insert ($exit->clone, 19, 20);
2149	$LINK_MAP->insert ($exit->clone, 19, 21);
2150	$LINK_MAP->insert ($exit->clone, 20, 19);
2151	$LINK_MAP->insert ($exit->clone, 20, 21);
2152	$LINK_MAP->insert ($exit->clone, 21, 19);
2153	$LINK_MAP->insert ($exit->clone, 21, 20);
2154	$LINK_MAP->insert ($exit->clone, 21, 21);
2155
2156	$exit->destroy;
2157	});	3063	},
2158		3064	);
2159	$LINK_MAP->{deny_save} = 1;
2160	$LINK_MAP->{deny_reset} = 1;
2161
2162	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2163	}	3065	}
2164
2165	register "<global>", __PACKAGE__;
2166		3066
2167	register_command "reload" => sub {	3067	register_command "reload" => sub {
2168	my ($who, $arg) = @_;	3068	my ($who, $arg) = @_;
2169		3069
2170	if ($who->flag (FLAG_WIZ)) {	3070	if ($who->flag (FLAG_WIZ)) {
2171	$who->message ("start of reload.");
2172	reload;
2173	$who->message ("end of reload.");	3071	$who->message ("reloading server.");
		3072	async { reload_perl };
2174	}	3073	}
2175	};	3074	};
2176		3075
2177	unshift @INC, $LIBDIR;	3076	unshift @INC, $LIBDIR;
2178		3077
		3078	my $bug_warning = 0;
		3079
		3080	our @WAIT_FOR_TICK;
		3081	our @WAIT_FOR_TICK_BEGIN;
		3082
		3083	sub wait_for_tick {
		3084	return unless $TICK_WATCHER->is_active;
		3085	return if $Coro::current == $Coro::main;
		3086
		3087	my $signal = new Coro::Signal;
		3088	push @WAIT_FOR_TICK, $signal;
		3089	$signal->wait;
		3090	}
		3091
		3092	sub wait_for_tick_begin {
		3093	return unless $TICK_WATCHER->is_active;
		3094	return if $Coro::current == $Coro::main;
		3095
		3096	my $signal = new Coro::Signal;
		3097	push @WAIT_FOR_TICK_BEGIN, $signal;
		3098	$signal->wait;
		3099	}
		3100
		3101	my $min = 1e6;#d#
		3102	my $avg = 10;
2179	$TICK_WATCHER = Event->timer (	3103	$TICK_WATCHER = Event->timer (
2180	reentrant => 0,	3104	reentrant => 0,
		3105	parked => 1,
2181	prio => 0,	3106	prio => 0,
2182	at => $NEXT_TICK || $TICK,	3107	at => $NEXT_TICK || $TICK,
2183	data => WF_AUTOCANCEL,	3108	data => WF_AUTOCANCEL,
2184	cb => sub {	3109	cb => sub {
		3110	if ($Coro::current != $Coro::main) {
		3111	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3112	unless ++$bug_warning > 10;
		3113	return;
		3114	}
		3115
		3116	$NOW = $tick_start = Event::time;
		3117
2185	cf::server_tick; # one server iteration	3118	cf::server_tick; # one server iteration
		3119
		3120	0 && sync_job {#d#
		3121	for(1..10) {
		3122	my $t = Event::time;
		3123	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3124	or die;
		3125
		3126	$map->width (50);
		3127	$map->height (50);
		3128	$map->alloc;
		3129	$map->_load_objects ("/tmp/x.map", 1);
		3130	my $t = Event::time - $t;
		3131
		3132	#next unless $t < 0.0013;#d#
		3133	if ($t < $min) {
		3134	$min = $t;
		3135	}
		3136	$avg = $avg * 0.99 + $t * 0.01;
		3137	}
		3138	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3139	exit 0;
		3140	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3141	};
		3142
2186	$RUNTIME += $TICK;	3143	$RUNTIME += $TICK;
2187	$NEXT_TICK += $TICK;	3144	$NEXT_TICK += $TICK;
2188		3145
		3146	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3147	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3148	Coro::async_pool {
		3149	write_runtime
		3150	or warn "ERROR: unable to write runtime file: $!";
		3151	};
		3152	}
		3153
		3154	# my $AFTER = Event::time;
		3155	# warn $AFTER - $NOW;#d#
		3156
		3157	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3158	$sig->send;
		3159	}
		3160	while (my $sig = shift @WAIT_FOR_TICK) {
		3161	$sig->send;
		3162	}
		3163
		3164	$NOW = Event::time;
		3165
2189	# if we are delayed by four ticks or more, skip them all	3166	# if we are delayed by four ticks or more, skip them all
2190	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3167	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2191		3168
2192	$TICK_WATCHER->at ($NEXT_TICK);	3169	$TICK_WATCHER->at ($NEXT_TICK);
2193	$TICK_WATCHER->start;	3170	$TICK_WATCHER->start;
		3171
		3172	$LOAD = ($NOW - $tick_start) / $TICK;
		3173	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3174
		3175	_post_tick;
		3176
		3177
2194	},	3178	},
2195	);	3179	);
2196		3180
		3181	{
2197	IO::AIO::max_poll_time $TICK * 0.2;	3182	BDB::max_poll_time $TICK * 0.1;
2198		3183	$BDB_POLL_WATCHER = Event->io (
2199	Event->io (	3184	reentrant => 0,
2200	fd => IO::AIO::poll_fileno,	3185	fd => BDB::poll_fileno,
2201	poll => 'r',	3186	poll => 'r',
2202	prio => 5,	3187	prio => 0,
2203	data => WF_AUTOCANCEL,
2204	cb => \&IO::AIO::poll_cb,
2205	);
2206
2207	Event->timer (
2208	data => WF_AUTOCANCEL,	3188	data => WF_AUTOCANCEL,
2209	after => 0,	3189	cb => \&BDB::poll_cb,
2210	interval => 10,	3190	);
2211	cb => sub {	3191	BDB::min_parallel 8;
2212	(Coro::unblock_sub {	3192
2213	write_runtime	3193	BDB::set_sync_prepare {
2214	or warn "ERROR: unable to write runtime file: $!";	3194	my $status;
		3195	my $current = $Coro::current;
		3196	(
		3197	sub {
		3198	$status = $!;
		3199	$current->ready; undef $current;
		3200	},
		3201	sub {
		3202	Coro::schedule while defined $current;
		3203	$! = $status;
		3204	},
		3205	)
		3206	};
		3207
		3208	unless ($DB_ENV) {
		3209	$DB_ENV = BDB::db_env_create;
		3210
		3211	cf::sync_job {
		3212	eval {
		3213	BDB::db_env_open
		3214	$DB_ENV,
		3215	$BDBDIR,
		3216	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3217	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3218	0666;
		3219
		3220	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3221
		3222	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3223	$DB_ENV->set_lk_detect;
		3224	};
		3225
		3226	cf::cleanup "db_env_open(db): $@" if $@;
2215	})->();	3227	};
2216	},	3228	}
2217	);	3229	}
		3230
		3231	{
		3232	IO::AIO::min_parallel 8;
		3233
		3234	undef $Coro::AIO::WATCHER;
		3235	IO::AIO::max_poll_time $TICK * 0.1;
		3236	$AIO_POLL_WATCHER = Event->io (
		3237	reentrant => 0,
		3238	data => WF_AUTOCANCEL,
		3239	fd => IO::AIO::poll_fileno,
		3240	poll => 'r',
		3241	prio => 6,
		3242	cb => \&IO::AIO::poll_cb,
		3243	);
		3244	}
		3245
		3246	my $_log_backtrace;
		3247
		3248	sub _log_backtrace {
		3249	my ($msg, @addr) = @_;
		3250
		3251	$msg =~ s/\n//;
		3252
		3253	# limit the # of concurrent backtraces
		3254	if ($_log_backtrace < 2) {
		3255	++$_log_backtrace;
		3256	async {
		3257	my @bt = fork_call {
		3258	@addr = map { sprintf "%x", $_ } @addr;
		3259	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3260	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3261	or die "addr2line: $!";
		3262
		3263	my @funcs;
		3264	my @res = <$fh>;
		3265	chomp for @res;
		3266	while (@res) {
		3267	my ($func, $line) = splice @res, 0, 2, ();
		3268	push @funcs, "[$func] $line";
		3269	}
		3270
		3271	@funcs
		3272	};
		3273
		3274	LOG llevInfo, "[ABT] $msg\n";
		3275	LOG llevInfo, "[ABT] $_\n" for @bt;
		3276	--$_log_backtrace;
		3277	};
		3278	} else {
		3279	LOG llevInfo, "[ABT] $msg\n";
		3280	LOG llevInfo, "[ABT] [suppressed]\n";
		3281	}
		3282	}
		3283
		3284	# load additional modules
		3285	use cf::pod;
2218		3286
2219	END { cf::emergency_save }	3287	END { cf::emergency_save }
2220		3288
2221	1	3289	1
2222		3290

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