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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 1.293 by root, Tue Jul 3 05:14:15 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	$res = Coro::Storable::thaw $res;
330		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
331	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
332	}	574	}
333		575
334	=back	576	=back
335		577
336	=cut	578	=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		579
458	#############################################################################	580	#############################################################################
459		581
460	=head2 ATTACHABLE OBJECTS	582	=head2 ATTACHABLE OBJECTS
461		583
…		…
463	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
464	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
465		587
466	In the following description, CLASS can be any of C<global>, C<object>	588	In the following description, CLASS can be any of C<global>, C<object>
467	C<player>, C<client> or C<map> (i.e. the attachable objects in	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
468	crossfire+).	590	Crossfire TRT).
469		591
470	=over 4	592	=over 4
471		593
472	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
473		595
…		…
587	our @CB_TYPE = (); # registry for type (cf-object class) based events	709	our @CB_TYPE = (); # registry for type (cf-object class) based events
588	our @CB_MAP = ();	710	our @CB_MAP = ();
589		711
590	my %attachment;	712	my %attachment;
591		713
		714	sub cf::attachable::thawer_merge {
		715	# simply override everything except _meta
		716	local $_[0]{_meta};
		717	%{$_[0]} = %{$_[1]};
		718	}
		719
592	sub _attach_cb($$$$) {	720	sub _attach_cb($$$$) {
593	my ($registry, $event, $prio, $cb) = @_;	721	my ($registry, $event, $prio, $cb) = @_;
594		722
595	use sort 'stable';	723	use sort 'stable';
596		724
…		…
630	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
631		759
632	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
633	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
634	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
635	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
636		764
637	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
638	my $pkg = shift @arg;	766	my $pkg = shift @arg;
639		767
640	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
669	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
670	}	798	}
671		799
672	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
673	} else {	801	} else {
674	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
675	}	803	}
676		804
677	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
678	}	806	}
679		807
…		…
681	if (ref $_[0]) {	809	if (ref $_[0]) {
682	_object_attach @_;	810	_object_attach @_;
683	} else {	811	} else {
684	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
685	}	813	}
		814	_recalc_want;
686	};	815	};
687		816
688	# all those should be optimised	817	# all those should be optimised
689	sub cf::attachable::detach {	818	sub cf::attachable::detach {
690	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
693	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
694	reattach ($obj);	823	reattach ($obj);
695	} else {	824	} else {
696	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
697	}	826	}
		827	_recalc_want;
698	};	828	};
699		829
700	sub cf::attachable::attached {	830	sub cf::attachable::attached {
701	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
702		832
…		…
767	# object support	897	# object support
768		898
769	sub reattach {	899	sub reattach {
770	# basically do the same as instantiate, without calling instantiate	900	# basically do the same as instantiate, without calling instantiate
771	my ($obj) = @_;	901	my ($obj) = @_;
		902
		903	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		904
773	my $registry = $obj->registry;	905	my $registry = $obj->registry;
774		906
775	@$registry = ();	907	@$registry = ();
776		908
…		…
823	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
824		956
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
829	close $fh;	961	close $fh;
830		962
831	if (@$objs) {	963	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	964	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
837	close $fh;	969	close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
839	}	971	}
840	} else {	972	} else {
841	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
873	or return;	1005	or return;
874	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
875	}	1007	}
876		1008
877	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
878	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
879	return ($data, $av);	1011	return ($data, $av);
880	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
881		1019
882	#############################################################################	1020	#############################################################################
883	# command handling &c	1021	# command handling &c
884		1022
885	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1037	}
900		1038
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1040
903	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
904		1046
905	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
906	called.	1048	called.
907		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
908	=cut	1061	=cut
909		1062
910	sub register_extcmd {	1063	sub register_extcmd {
911	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
912		1065
913	my $caller = caller;
914	#warn "registering extcmd '$name' to '$caller'";
915
916	$EXTCMD{$name} = [$cb, $caller];	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
917	}	1073	}
918		1074
919	cf::player->attach (	1075	cf::player->attach (
920	on_command => sub {	1076	on_command => sub {
921	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
930	cf::override;	1086	cf::override;
931	},	1087	},
932	on_extcmd => sub {	1088	on_extcmd => sub {
933	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
934		1090
935	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
936		1092
937	if (ref $msg) {	1093	if (ref $msg) {
938	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
939	if (my %reply = $cb->[0]->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
940	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
941	}	1097	}
942	}	1098	}
943	} else {	1099	} else {
944	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1100	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
946		1102
947	cf::override;	1103	cf::override;
948	},	1104	},
949	);	1105	);
950		1106
951	sub register {
952	my ($base, $pkg) = @_;
953
954	#TODO
955	}
956
957	sub load_extension {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
		1111	for my $path (<$LIBDIR/*.ext>) {
		1112	next unless -r $path;
		1113
		1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
		1171	}
		1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
		1177	};
		1178	}
		1179
		1180	#############################################################################
		1181
		1182	=back
		1183
		1184	=head2 CORE EXTENSIONS
		1185
		1186	Functions and methods that extend core crossfire objects.
		1187
		1188	=cut
		1189
		1190	package cf::player;
		1191
		1192	use Coro::AIO;
		1193
		1194	=head3 cf::player
		1195
		1196	=over 4
		1197
		1198	=item cf::player::find $login
		1199
		1200	Returns the given player object, loading it if necessary (might block).
		1201
		1202	=cut
		1203
		1204	sub playerdir($) {
		1205	"$PLAYERDIR/"
		1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1207	}
		1208
		1209	sub path($) {
		1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1211
		1212	(playerdir $login) . "/playerdata"
		1213	}
		1214
		1215	sub find_active($) {
		1216	$cf::PLAYER{$_[0]}
		1217	and $cf::PLAYER{$_[0]}->active
		1218	and $cf::PLAYER{$_[0]}
		1219	}
		1220
		1221	sub exists($) {
		1222	my ($login) = @_;
		1223
		1224	$cf::PLAYER{$login}
		1225	or cf::sync_job { !aio_stat path $login }
		1226	}
		1227
		1228	sub find($) {
		1229	return $cf::PLAYER{$_[0]} || do {
		1230	my $login = $_[0];
		1231
		1232	my $guard = cf::lock_acquire "user_find:$login";
		1233
		1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
		1242	my $pl = load_pl path $login
		1243	or return;
		1244	$cf::PLAYER{$login} = $pl
		1245	}
		1246	}
		1247	}
		1248
		1249	sub save($) {
		1250	my ($pl) = @_;
		1251
		1252	return if $pl->{deny_save};
		1253
		1254	my $path = path $pl;
		1255	my $guard = cf::lock_acquire "user_save:$path";
		1256
		1257	return if $pl->{deny_save};
		1258
		1259	aio_mkdir playerdir $pl, 0770;
		1260	$pl->{last_save} = $cf::RUNTIME;
		1261
		1262	$pl->save_pl ($path);
		1263	Coro::cede;
		1264	}
		1265
		1266	sub new($) {
		1267	my ($login) = @_;
		1268
		1269	my $self = create;
		1270
		1271	$self->ob->name ($login);
		1272	$self->{deny_save} = 1;
		1273
		1274	$cf::PLAYER{$login} = $self;
		1275
		1276	$self
		1277	}
		1278
		1279	=item $pl->quit_character
		1280
		1281	Nukes the player without looking back. If logged in, the connection will
		1282	be destroyed. May block for a long time.
		1283
		1284	=cut
		1285
		1286	sub quit_character {
		1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
		1290
		1291	$pl->{deny_save} = 1;
		1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1293
		1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1295	$pl->deactivate;
		1296	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1297	$pl->ns->destroy if $pl->ns;
		1298
		1299	my $path = playerdir $pl;
		1300	my $temp = "$path~$cf::RUNTIME~deleting~";
		1301	aio_rename $path, $temp;
		1302	delete $cf::PLAYER{$pl->ob->name};
		1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
		1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
		1325	}
		1326
		1327	=item cf::player::list_logins
		1328
		1329	Returns am arrayref of all valid playernames in the system, can take a
		1330	while and may block, so not sync_job-capable, ever.
		1331
		1332	=cut
		1333
		1334	sub list_logins {
		1335	my $dirs = aio_readdir $PLAYERDIR
		1336	or return [];
		1337
		1338	my @logins;
		1339
		1340	for my $login (@$dirs) {
		1341	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1342	aio_read $fh, 0, 512, my $buf, 0 or next;
		1343	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1344
		1345	utf8::decode $login;
		1346	push @logins, $login;
		1347	}
		1348
		1349	\@logins
		1350	}
		1351
		1352	=item $player->maps
		1353
		1354	Returns an arrayref of map paths that are private for this
		1355	player. May block.
		1356
		1357	=cut
		1358
		1359	sub maps($) {
		1360	my ($pl) = @_;
		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
		1364	my $files = aio_readdir playerdir $pl
		1365	or return;
		1366
		1367	my @paths;
		1368
		1369	for (@$files) {
		1370	utf8::decode $_;
		1371	next if /\.(?:pl|pst)$/;
		1372	next unless /^$PATH_SEP/o;
		1373
		1374	push @paths, cf::map::normalise "~$pl/$_";
		1375	}
		1376
		1377	\@paths
		1378	}
		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s{H<([^\>]*)>}
		1406	{
		1407	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1408	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1409	"")
		1410	[$self->{hintmode}]
		1411	}ge;
		1412
		1413	# create single paragraphs (very hackish)
		1414	s/(?<=\S)\n(?=\w)/ /g;
		1415
		1416	# compress some whitespace
		1417	1 while s/\s*\n\s*\n\s*/\n/;
		1418
		1419	s/^\s+//;
		1420	s/\s+$//;
		1421
		1422	$_
		1423	}
		1424
		1425	sub hintmode {
		1426	$_[0]{hintmode} = $_[1] if @_ > 1;
		1427	$_[0]{hintmode}
		1428	}
		1429
		1430	=item $player->ext_reply ($msgid, %msg)
		1431
		1432	Sends an ext reply to the player.
		1433
		1434	=cut
		1435
		1436	sub ext_reply($$%) {
		1437	my ($self, $id, %msg) = @_;
		1438
		1439	$msg{msgid} = $id;
		1440	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1441	}
		1442
		1443	=item $player->ext_event ($type, %msg)
		1444
		1445	Sends an ext event to the client.
		1446
		1447	=cut
		1448
		1449	sub ext_event($$%) {
		1450	my ($self, $type, %msg) = @_;
		1451
		1452	$self->ns->ext_event ($type, %msg);
		1453	}
		1454
		1455	=head3 cf::region
		1456
		1457	=over 4
		1458
		1459	=cut
		1460
		1461	package cf::region;
		1462
		1463	=item cf::region::find_by_path $path
		1464
		1465	Tries to decuce the likely region for a map knowing only its path.
		1466
		1467	=cut
		1468
		1469	sub find_by_path($) {
958	my ($path) = @_;	1470	my ($path) = @_;
959		1471
960	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1472	my ($match, $specificity);
961	my $base = $1;
962	my $pkg = $1;
963	$pkg =~ s/[^[:word:]]/_/g;
964	$pkg = "ext::$pkg";
965		1473
966	warn "loading '$path' into '$pkg'\n";	1474	for my $region (list) {
967		1475	if ($region->match && $path =~ $region->match) {
968	open my $fh, "<:utf8", $path	1476	($match, $specificity) = ($region, $region->specificity)
969	or die "$path: $!";	1477	if $region->specificity > $specificity;
970		1478	}
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	# }	1479	}
1000		1480
1001	# remove commands	1481	$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	}	1482	}
1107		1483
1108	=back	1484	=back
1109
1110		1485
1111	=head3 cf::map	1486	=head3 cf::map
1112		1487
1113	=over 4	1488	=over 4
1114		1489
…		…
1117	package cf::map;	1492	package cf::map;
1118		1493
1119	use Fcntl;	1494	use Fcntl;
1120	use Coro::AIO;	1495	use Coro::AIO;
1121		1496
		1497	use overload
		1498	'""' => \&as_string,
		1499	fallback => 1;
		1500
1122	our $MAX_RESET = 3600;	1501	our $MAX_RESET = 3600;
1123	our $DEFAULT_RESET = 3000;	1502	our $DEFAULT_RESET = 3000;
1124		1503
1125	sub generate_random_map {	1504	sub generate_random_map {
1126	my ($path, $rmp) = @_;	1505	my ($self, $rmp) = @_;
1127
1128	# mit "rum" bekleckern, nicht	1506	# mit "rum" bekleckern, nicht
1129	cf::map::_create_random_map	1507	$self->_create_random_map (
1130	$path,
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1508	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1509	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1510	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1511	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1512	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1513	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1514	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1515	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1516	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1517	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(cf::region::find $rmp->{region})	1518	(cf::region::find $rmp->{region}), $rmp->{custom}
		1519	)
		1520	}
		1521
		1522	=item cf::map->register ($regex, $prio)
		1523
		1524	Register a handler for the map path matching the given regex at the
		1525	givne priority (higher is better, built-in handlers have priority 0, the
		1526	default).
		1527
		1528	=cut
		1529
		1530	sub register {
		1531	my (undef, $regex, $prio) = @_;
		1532	my $pkg = caller;
		1533
		1534	no strict;
		1535	push @{"$pkg\::ISA"}, __PACKAGE__;
		1536
		1537	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1538	}
		1539
		1540	# also paths starting with '/'
		1541	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1542
		1543	sub thawer_merge {
		1544	my ($self, $merge) = @_;
		1545
		1546	# we have to keep some variables in memory intact
		1547	local $self->{path};
		1548	local $self->{load_path};
		1549
		1550	$self->SUPER::thawer_merge ($merge);
		1551	}
		1552
		1553	sub normalise {
		1554	my ($path, $base) = @_;
		1555
		1556	$path = "$path"; # make sure its a string
		1557
		1558	$path =~ s/\.map$//;
		1559
		1560	# map plan:
		1561	#
		1562	# /! non-realised random map exit (special hack!)
		1563	# {... are special paths that are not being touched
		1564	# ?xxx/... are special absolute paths
		1565	# ?random/... random maps
		1566	# /... normal maps
		1567	# ~user/... per-player map of a specific user
		1568
		1569	$path =~ s/$PATH_SEP/\//go;
		1570
		1571	# treat it as relative path if it starts with
		1572	# something that looks reasonable
		1573	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1574	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1575
		1576	$base =~ s{[^/]+/?$}{};
		1577	$path = "$base/$path";
		1578	}
		1579
		1580	for ($path) {
		1581	redo if s{//}{/};
		1582	redo if s{/\.?/}{/};
		1583	redo if s{/[^/]+/\.\./}{/};
		1584	}
		1585
		1586	$path
		1587	}
		1588
		1589	sub new_from_path {
		1590	my (undef, $path, $base) = @_;
		1591
		1592	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1593
		1594	$path = normalise $path, $base;
		1595
		1596	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1597	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1598	my $self = bless cf::map::new, $pkg;
		1599	$self->{path} = $path; $self->path ($path);
		1600	$self->init; # pass $1 etc.
		1601	return $self;
		1602	}
		1603	}
		1604
		1605	Carp::carp "unable to resolve path '$path' (base '$base').";
		1606	()
		1607	}
		1608
		1609	sub init {
		1610	my ($self) = @_;
		1611
		1612	$self
		1613	}
		1614
		1615	sub as_string {
		1616	my ($self) = @_;
		1617
		1618	"$self->{path}"
		1619	}
		1620
		1621	# the displayed name, this is a one way mapping
		1622	sub visible_name {
		1623	&as_string
		1624	}
		1625
		1626	# the original (read-only) location
		1627	sub load_path {
		1628	my ($self) = @_;
		1629
		1630	"$MAPDIR/$self->{path}.map"
		1631	}
		1632
		1633	# the temporary/swap location
		1634	sub save_path {
		1635	my ($self) = @_;
		1636
		1637	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1638	"$TMPDIR/$path.map"
		1639	}
		1640
		1641	# the unique path, undef == no special unique path
		1642	sub uniq_path {
		1643	my ($self) = @_;
		1644
		1645	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1646	"$UNIQUEDIR/$path"
1142	}	1647	}
1143		1648
1144	# and all this just because we cannot iterate over	1649	# and all this just because we cannot iterate over
1145	# all maps in C++...	1650	# all maps in C++...
1146	sub change_all_map_light {	1651	sub change_all_map_light {
…		…
1148		1653
1149	$_->change_map_light ($change)	1654	$_->change_map_light ($change)
1150	for grep $_->outdoor, values %cf::MAP;	1655	for grep $_->outdoor, values %cf::MAP;
1151	}	1656	}
1152		1657
		1658	sub decay_objects {
		1659	my ($self) = @_;
		1660
		1661	return if $self->{deny_reset};
		1662
		1663	$self->do_decay_objects;
		1664	}
		1665
		1666	sub unlink_save {
		1667	my ($self) = @_;
		1668
		1669	utf8::encode (my $save = $self->save_path);
		1670	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1671	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1672	}
		1673
1153	sub try_load_header($) {	1674	sub load_header_from($) {
1154	my ($path) = @_;	1675	my ($self, $path) = @_;
1155		1676
1156	utf8::encode $path;	1677	utf8::encode $path;
1157	aio_open $path, O_RDONLY, 0	1678	#aio_open $path, O_RDONLY, 0
		1679	# or return;
		1680
		1681	$self->_load_header ($path)
1158	or return;	1682	or return;
1159		1683
1160	my $map = cf::map::new	1684	$self->{load_path} = $path;
		1685
		1686	1
		1687	}
		1688
		1689	sub load_header_orig {
		1690	my ($self) = @_;
		1691
		1692	$self->load_header_from ($self->load_path)
		1693	}
		1694
		1695	sub load_header_temp {
		1696	my ($self) = @_;
		1697
		1698	$self->load_header_from ($self->save_path)
		1699	}
		1700
		1701	sub prepare_temp {
		1702	my ($self) = @_;
		1703
		1704	$self->last_access ((delete $self->{last_access})
		1705	|| $cf::RUNTIME); #d#
		1706	# safety
		1707	$self->{instantiate_time} = $cf::RUNTIME
		1708	if $self->{instantiate_time} > $cf::RUNTIME;
		1709	}
		1710
		1711	sub prepare_orig {
		1712	my ($self) = @_;
		1713
		1714	$self->{load_original} = 1;
		1715	$self->{instantiate_time} = $cf::RUNTIME;
		1716	$self->last_access ($cf::RUNTIME);
		1717	$self->instantiate;
		1718	}
		1719
		1720	sub load_header {
		1721	my ($self) = @_;
		1722
		1723	if ($self->load_header_temp) {
		1724	$self->prepare_temp;
		1725	} else {
		1726	$self->load_header_orig
1161	or return;	1727	or return;
		1728	$self->prepare_orig;
		1729	}
1162		1730
1163	# for better error messages only, will be overwritten	1731	$self->{deny_reset} = 1
1164	$map->path ($path);	1732	if $self->no_reset;
1165		1733
1166	$map->load_header ($path)	1734	$self->default_region (cf::region::find_by_path $self->{path})
1167	or return;	1735	unless $self->default_region;
1168		1736
1169	$map->{load_path} = $path;	1737	1
1170
1171	$map
1172	}	1738	}
1173		1739
1174	sub find;	1740	sub find;
1175	sub find {	1741	sub find {
1176	my ($path, $origin) = @_;	1742	my ($path, $origin) = @_;
1177		1743
1178	#warn "find<$path,$origin>\n";#d#
1179
1180	$path = new cf::path $path, $origin && $origin->path;	1744	$path = normalise $path, $origin && $origin->path;
1181	my $key = $path->as_string;
1182		1745
1183	cf::lock_wait "map_find:$key";	1746	cf::lock_wait "map_find:$path";
1184		1747
1185	$cf::MAP{$key} || do {	1748	$cf::MAP{$path} || do {
1186	my $guard = cf::lock_acquire "map_find:$key";	1749	my $guard = cf::lock_acquire "map_find:$path";
1187		1750	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;	1751	or return;
1207		1752
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;	1753	$map->{last_save} = $cf::RUNTIME;
1220		1754
1221	Coro::cede;	1755	$map->load_header
		1756	or return;
1222		1757
1223	if ($map->should_reset) {	1758	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1759	# doing this can freeze the server in a sync job, obviously
		1760	#$cf::WAIT_FOR_TICK->wait;
1224	$map->reset;	1761	$map->reset;
1225	undef $guard;	1762	undef $guard;
1226	$map = find $path	1763	return find $path;
1227	or return;
1228	}	1764	}
1229		1765
1230	$cf::MAP{$key} = $map	1766	$cf::MAP{$path} = $map
1231	}	1767	}
1232	}	1768	}
		1769
		1770	sub pre_load { }
		1771	sub post_load { }
1233		1772
1234	sub load {	1773	sub load {
1235	my ($self) = @_;	1774	my ($self) = @_;
1236		1775
		1776	local $self->{deny_reset} = 1; # loading can take a long time
		1777
1237	my $path = $self->{path};	1778	my $path = $self->{path};
		1779
		1780	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1781	my $guard = cf::lock_acquire "map_load:$path";
1239		1782
1240	return if $self->in_memory != cf::MAP_SWAPPED;	1783	return if $self->in_memory != cf::MAP_SWAPPED;
1241		1784
1242	$self->in_memory (cf::MAP_LOADING);	1785	$self->in_memory (cf::MAP_LOADING);
1243		1786
1244	$self->alloc;	1787	$self->alloc;
		1788
		1789	$self->pre_load;
		1790	Coro::cede;
		1791
1245	$self->load_objects ($self->{load_path}, 1)	1792	$self->_load_objects ($self->{load_path}, 1)
1246	or return;	1793	or return;
1247		1794
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1795	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1249	if delete $self->{load_original};	1796	if delete $self->{load_original};
1250		1797
1251	if (my $uniq = $path->uniq_path) {	1798	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	1799	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	1800	if (aio_open $uniq, O_RDONLY, 0) {
1254	$self->clear_unique_items;	1801	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	1802	$self->_load_objects ($uniq, 0);
1256	}	1803	}
1257	}	1804	}
1258		1805
1259	Coro::cede;	1806	Coro::cede;
1260
1261	# now do the right thing for maps	1807	# now do the right thing for maps
1262	$self->link_multipart_objects;	1808	$self->link_multipart_objects;
1263
1264	if ($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)	1809	$self->difficulty ($self->estimate_difficulty)
1273	unless $self->difficulty;	1810	unless $self->difficulty;
		1811	Coro::cede;
		1812
		1813	unless ($self->{deny_activate}) {
		1814	$self->decay_objects;
		1815	$self->fix_auto_apply;
		1816	$self->update_buttons;
		1817	Coro::cede;
		1818	$self->set_darkness_map;
		1819	Coro::cede;
1274	$self->activate;	1820	$self->activate;
1275	}	1821	}
1276		1822
1277	Coro::cede;
1278
1279	$self->in_memory (cf::MAP_IN_MEMORY);	1823	$self->in_memory (cf::MAP_IN_MEMORY);
		1824	}
		1825
		1826	$self->post_load;
		1827	}
		1828
		1829	sub customise_for {
		1830	my ($self, $ob) = @_;
		1831
		1832	return find "~" . $ob->name . "/" . $self->{path}
		1833	if $self->per_player;
		1834
		1835	# return find "?party/" . $ob->name . "/" . $self->{path}
		1836	# if $self->per_party;
		1837
		1838	$self
		1839	}
		1840
		1841	# find and load all maps in the 3x3 area around a map
		1842	sub load_diag {
		1843	my ($map) = @_;
		1844
		1845	my @diag; # diagonal neighbours
		1846
		1847	for (0 .. 3) {
		1848	my $neigh = $map->tile_path ($_)
		1849	or next;
		1850	$neigh = find $neigh, $map
		1851	or next;
		1852	$neigh->load;
		1853
		1854	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1855	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1856	}
		1857
		1858	for (@diag) {
		1859	my $neigh = find @$_
		1860	or next;
		1861	$neigh->load;
		1862	}
1280	}	1863	}
1281		1864
1282	sub find_sync {	1865	sub find_sync {
1283	my ($path, $origin) = @_;	1866	my ($path, $origin) = @_;
1284		1867
1285	cf::sync_job { cf::map::find $path, $origin }	1868	cf::sync_job { find $path, $origin }
1286	}	1869	}
1287		1870
1288	sub do_load_sync {	1871	sub do_load_sync {
1289	my ($map) = @_;	1872	my ($map) = @_;
1290		1873
1291	cf::sync_job { $map->load };	1874	cf::sync_job { $map->load };
1292	}	1875	}
1293		1876
		1877	our %MAP_PREFETCH;
		1878	our $MAP_PREFETCHER = undef;
		1879
		1880	sub find_async {
		1881	my ($path, $origin) = @_;
		1882
		1883	$path = normalise $path, $origin && $origin->{path};
		1884
		1885	if (my $map = $cf::MAP{$path}) {
		1886	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1887	}
		1888
		1889	undef $MAP_PREFETCH{$path};
		1890	$MAP_PREFETCHER ||= cf::async {
		1891	while (%MAP_PREFETCH) {
		1892	for my $path (keys %MAP_PREFETCH) {
		1893	my $map = find $path
		1894	or next;
		1895	$map->load;
		1896
		1897	delete $MAP_PREFETCH{$path};
		1898	}
		1899	}
		1900	undef $MAP_PREFETCHER;
		1901	};
		1902	$MAP_PREFETCHER->prio (6);
		1903
		1904	()
		1905	}
		1906
1294	sub save {	1907	sub save {
1295	my ($self) = @_;	1908	my ($self) = @_;
1296		1909
1297	my $lock = cf::lock_acquire "map_data:" . $self->path;	1910	my $lock = cf::lock_acquire "map_data:" . $self->path;
1298		1911
1299	$self->{last_save} = $cf::RUNTIME;	1912	$self->{last_save} = $cf::RUNTIME;
1300		1913
1301	return unless $self->dirty;	1914	return unless $self->dirty;
1302		1915
1303	my $save = $self->{path}->save_path; utf8::encode $save;	1916	my $save = $self->save_path; utf8::encode $save;
1304	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1917	my $uniq = $self->uniq_path; utf8::encode $uniq;
1305		1918
1306	$self->{load_path} = $save;	1919	$self->{load_path} = $save;
1307		1920
1308	return if $self->{deny_save};	1921	return if $self->{deny_save};
1309		1922
1310	local $self->{last_access} = $self->last_access;#d#	1923	local $self->{last_access} = $self->last_access;#d#
1311		1924
		1925	cf::async {
		1926	$_->contr->save for $self->players;
		1927	};
		1928
1312	if ($uniq) {	1929	if ($uniq) {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1930	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1314	$self->save_objects ($uniq, cf::IO_UNIQUES);	1931	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1315	} else {	1932	} else {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1933	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1317	}	1934	}
1318	}	1935	}
1319		1936
1320	sub swap_out {	1937	sub swap_out {
1321	my ($self) = @_;	1938	my ($self) = @_;
…		…
1335		1952
1336	sub reset_at {	1953	sub reset_at {
1337	my ($self) = @_;	1954	my ($self) = @_;
1338		1955
1339	# TODO: safety, remove and allow resettable per-player maps	1956	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	1957	return 1e99 if $self->{deny_reset};
1342		1958
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1959	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1960	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1961
…		…
1350	my ($self) = @_;	1966	my ($self) = @_;
1351		1967
1352	$self->reset_at <= $cf::RUNTIME	1968	$self->reset_at <= $cf::RUNTIME
1353	}	1969	}
1354		1970
1355	sub unlink_save {
1356	my ($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	$self->save;
1374	}
1375
1376	sub reset {	1971	sub reset {
1377	my ($self) = @_;	1972	my ($self) = @_;
1378		1973
1379	my $lock = cf::lock_acquire "map_data:" . $self->path;	1974	my $lock = cf::lock_acquire "map_data:$self->{path}";
1380		1975
1381	return if $self->players;	1976	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		1977
1384	warn "resetting map ", $self->path;#d#	1978	warn "resetting map ", $self->path;
		1979
		1980	$self->in_memory (cf::MAP_SWAPPED);
		1981
		1982	# need to save uniques path
		1983	unless ($self->{deny_save}) {
		1984	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1985
		1986	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1987	if $uniq;
		1988	}
1385		1989
1386	delete $cf::MAP{$self->path};	1990	delete $cf::MAP{$self->path};
		1991
		1992	$self->clear;
1387		1993
1388	$_->clear_links_to ($self) for values %cf::MAP;	1994	$_->clear_links_to ($self) for values %cf::MAP;
1389		1995
1390	$self->unlink_save;	1996	$self->unlink_save;
1391	$self->destroy;	1997	$self->destroy;
…		…
1394	my $nuke_counter = "aaaa";	2000	my $nuke_counter = "aaaa";
1395		2001
1396	sub nuke {	2002	sub nuke {
1397	my ($self) = @_;	2003	my ($self) = @_;
1398		2004
		2005	delete $cf::MAP{$self->path};
		2006
		2007	$self->unlink_save;
		2008
		2009	bless $self, "cf::map";
		2010	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2011	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2012	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2013	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2014
		2015	$cf::MAP{$self->path} = $self;
		2016
1402	$self->reset; # polite request, might not happen	2017	$self->reset; # polite request, might not happen
1403	}	2018	}
1404		2019
1405	sub customise_for {	2020	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2021
1408	if ($map->per_player) {	2022	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2023	maps. May block.
		2024
		2025	=cut
		2026
		2027	sub tmp_maps() {
1410	}	2028	[
1411		2029	map {
1412	$map	2030	utf8::decode $_;
		2031	/\.map$/
		2032	? normalise $_
		2033	: ()
		2034	} @{ aio_readdir $TMPDIR or [] }
		2035	]
1413	}	2036	}
1414		2037
1415	sub emergency_save {	2038	=item $maps = cf::map::random_maps
1416	my $freeze_guard = cf::freeze_mainloop;
1417		2039
1418	warn "enter emergency map save\n";	2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	random maps. May block.
1419		2042
1420	cf::sync_job {	2043	=cut
1421	warn "begin emergency map save\n";
1422	$_->save for values %cf::MAP;
1423	};
1424		2044
1425	warn "end emergency map save\n";	2045	sub random_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise "?random/$_"
		2051	: ()
		2052	} @{ aio_readdir $RANDOMDIR or [] }
		2053	]
		2054	}
		2055
		2056	=item cf::map::unique_maps
		2057
		2058	Returns an arrayref of paths of all shared maps that have
		2059	instantiated unique items. May block.
		2060
		2061	=cut
		2062
		2063	sub unique_maps() {
		2064	[
		2065	map {
		2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise $_
		2069	: ()
		2070	} @{ aio_readdir $UNIQUEDIR or [] }
		2071	]
1426	}	2072	}
1427		2073
1428	package cf;	2074	package cf;
1429		2075
1430	=back	2076	=back
1431		2077
		2078	=head3 cf::object
		2079
		2080	=cut
		2081
		2082	package cf::object;
		2083
		2084	=over 4
		2085
		2086	=item $ob->inv_recursive
		2087
		2088	Returns the inventory of the object _and_ their inventories, recursively.
		2089
		2090	=cut
		2091
		2092	sub inv_recursive_;
		2093	sub inv_recursive_ {
		2094	map { $_, inv_recursive_ $_->inv } @_
		2095	}
		2096
		2097	sub inv_recursive {
		2098	inv_recursive_ inv $_[0]
		2099	}
		2100
		2101	package cf;
		2102
		2103	=back
1432		2104
1433	=head3 cf::object::player	2105	=head3 cf::object::player
1434		2106
1435	=over 4	2107	=over 4
1436		2108
…		…
1450		2122
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2123	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2124
1453	if ($self->{record_replies}) {	2125	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2126	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2127
1455	} else {	2128	} else {
		2129	my $pl = $self->contr;
		2130
		2131	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2132	my $diag = $pl->{npc_dialog};
		2133	$diag->{pl}->ext_reply (
		2134	$diag->{id},
		2135	msgtype => "reply",
		2136	msg => $diag->{pl}->expand_cfpod ($msg),
		2137	add_topics => []
		2138	);
		2139
		2140	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2141	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2142	$self->message ($msg, $flags);
		2143	}
1458	}	2144	}
1459	}	2145	}
1460		2146
1461	=item $player_object->may ("access")	2147	=item $player_object->may ("access")
1462		2148
…		…
1476		2162
1477	=item $player_object->enter_link	2163	=item $player_object->enter_link
1478		2164
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2165	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2166
1481	The player should be reaosnably safe there for short amounts of time. You	2167	The player should be reasonably safe there for short amounts of time. You
1482	I<MUST> call C<leave_link> as soon as possible, though.	2168	I<MUST> call C<leave_link> as soon as possible, though.
1483		2169
		2170	Will never block.
		2171
1484	=item $player_object->leave_link ($map, $x, $y)	2172	=item $player_object->leave_link ($map, $x, $y)
1485		2173
1486	Moves the player out of the specila link map onto the given map. If the	2174	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2175	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2176	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2177	fails, to the emergency map position.
1490		2178
1491	Might block.	2179	Might block.
1492		2180
1493	=cut	2181	=cut
		2182
		2183	sub link_map {
		2184	unless ($LINK_MAP) {
		2185	$LINK_MAP = cf::map::find "{link}"
		2186	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2187	$LINK_MAP->load;
		2188	}
		2189
		2190	$LINK_MAP
		2191	}
1494		2192
1495	sub cf::object::player::enter_link {	2193	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2194	my ($self) = @_;
1497		2195
1498	$self->deactivate_recursive;	2196	$self->deactivate_recursive;
1499		2197
1500	return if $self->map == $LINK_MAP;	2198	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2199
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2200	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2201	if $self->map && $self->map->{path} ne "{link}";
1504		2202
1505	$self->enter_map ($LINK_MAP, 20, 20);	2203	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	2204	}
1507		2205
1508	sub cf::object::player::leave_link {	2206	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2207	my ($self, $map, $x, $y) = @_;
		2208
		2209	return unless $self->contr->active;
1510		2210
1511	my $link_pos = delete $self->{_link_pos};	2211	my $link_pos = delete $self->{_link_pos};
1512		2212
1513	unless ($map) {	2213	unless ($map) {
1514	# restore original map position	2214	# restore original map position
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	2228	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2229	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2230	if $x <=0 && $y <= 0;
1531		2231
1532	$map->load;	2232	$map->load;
		2233	$map->load_diag;
1533		2234
		2235	return unless $self->contr->active;
1534	$self->activate_recursive;	2236	$self->activate_recursive;
		2237
		2238	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	2239	$self->enter_map ($map, $x, $y);
1536	}	2240	}
1537		2241
1538	cf::player->attach (
1539	on_logout => sub {
1540	my ($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)	2242	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1572		2243
		2244	Moves the player to the given map-path and coordinates by first freezing
		2245	her, loading and preparing them map, calling the provided $check callback
		2246	that has to return the map if sucecssful, and then unfreezes the player on
		2247	the new (success) or old (failed) map position.
		2248
1573	=cut	2249	=cut
		2250
		2251	our $GOTOGEN;
1574		2252
1575	sub cf::object::player::goto {	2253	sub cf::object::player::goto {
1576	my ($self, $path, $x, $y) = @_;	2254	my ($self, $path, $x, $y, $check) = @_;
		2255
		2256	# do generation counting so two concurrent goto's will be executed in-order
		2257	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1577		2258
1578	$self->enter_link;	2259	$self->enter_link;
1579		2260
1580	(async {	2261	(async {
1581	$path = new cf::path $path;	2262	my $map = eval {
1582
1583	my $map = cf::map::find $path->as_string;	2263	my $map = cf::map::find $path;
		2264
		2265	if ($map) {
1584	$map = $map->customise_for ($self) if $map;	2266	$map = $map->customise_for ($self);
1585		2267	$map = $check->($map) if $check && $map;
1586	# warn "entering ", $map->path, " at ($x, $y)\n"	2268	} else {
1587	# if $map;
1588
1589	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2269	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2270	}
1590		2271
		2272	$map
		2273	};
		2274
		2275	if ($@) {
		2276	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2277	LOG llevError | logBacktrace, Carp::longmess $@;
		2278	}
		2279
		2280	if ($gen == $self->{_goto_generation}) {
		2281	delete $self->{_goto_generation};
1591	$self->leave_link ($map, $x, $y);	2282	$self->leave_link ($map, $x, $y);
		2283	}
1592	})->prio (1);	2284	})->prio (1);
1593	}	2285	}
1594		2286
1595	=item $player_object->enter_exit ($exit_object)	2287	=item $player_object->enter_exit ($exit_object)
1596		2288
…		…
1598		2290
1599	sub parse_random_map_params {	2291	sub parse_random_map_params {
1600	my ($spec) = @_;	2292	my ($spec) = @_;
1601		2293
1602	my $rmp = { # defaults	2294	my $rmp = { # defaults
1603	xsize => 10,	2295	xsize => (cf::rndm 15, 40),
1604	ysize => 10,	2296	ysize => (cf::rndm 15, 40),
		2297	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2298	#layout => string,
1605	};	2299	};
1606		2300
1607	for (split /\n/, $spec) {	2301	for (split /\n/, $spec) {
1608	my ($k, $v) = split /\s+/, $_, 2;	2302	my ($k, $v) = split /\s+/, $_, 2;
1609		2303
…		…
1613	$rmp	2307	$rmp
1614	}	2308	}
1615		2309
1616	sub prepare_random_map {	2310	sub prepare_random_map {
1617	my ($exit) = @_;	2311	my ($exit) = @_;
		2312
		2313	my $guard = cf::lock_acquire "exit_prepare:$exit";
1618		2314
1619	# all this does is basically replace the /! path by	2315	# all this does is basically replace the /! path by
1620	# a new random map path (?random/...) with a seed	2316	# a new random map path (?random/...) with a seed
1621	# that depends on the exit object	2317	# that depends on the exit object
1622		2318
1623	my $rmp = parse_random_map_params $exit->msg;	2319	my $rmp = parse_random_map_params $exit->msg;
1624		2320
1625	if ($exit->map) {	2321	if ($exit->map) {
1626	$rmp->{region} = $exit->map->region_name;	2322	$rmp->{region} = $exit->region->name;
1627	$rmp->{origin_map} = $exit->map->path;	2323	$rmp->{origin_map} = $exit->map->path;
1628	$rmp->{origin_x} = $exit->x;	2324	$rmp->{origin_x} = $exit->x;
1629	$rmp->{origin_y} = $exit->y;	2325	$rmp->{origin_y} = $exit->y;
1630	}	2326	}
1631		2327
1632	$rmp->{random_seed} ||= $exit->random_seed;	2328	$rmp->{random_seed} ||= $exit->random_seed;
1633		2329
1634	my $data = cf::to_json $rmp;	2330	my $data = cf::to_json $rmp;
1635	my $md5 = Digest::MD5::md5_hex $data;	2331	my $md5 = Digest::MD5::md5_hex $data;
		2332	my $meta = "$RANDOMDIR/$md5.meta";
1636		2333
1637	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2334	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1638	aio_write $fh, 0, (length $data), $data, 0;	2335	aio_write $fh, 0, (length $data), $data, 0;
		2336	undef $fh;
		2337	aio_rename "$meta~", $meta;
1639		2338
1640	$exit->slaying ("?random/$md5");	2339	$exit->slaying ("?random/$md5");
1641	$exit->msg (undef);	2340	$exit->msg (undef);
1642	}	2341	}
1643	}	2342	}
1644		2343
1645	sub cf::object::player::enter_exit {	2344	sub cf::object::player::enter_exit {
1646	my ($self, $exit) = @_;	2345	my ($self, $exit) = @_;
1647		2346
1648	return unless $self->type == cf::PLAYER;	2347	return unless $self->type == cf::PLAYER;
		2348
		2349	if ($exit->slaying eq "/!") {
		2350	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2351	# the problem is that $exit might not survive long enough
		2352	# so it needs to be done right now, right here
		2353	cf::sync_job { prepare_random_map $exit };
		2354	}
		2355
		2356	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2357	my $hp = $exit->stats->hp;
		2358	my $sp = $exit->stats->sp;
1649		2359
1650	$self->enter_link;	2360	$self->enter_link;
1651		2361
1652	(async {	2362	(async {
1653	$self->deactivate_recursive; # just to be sure	2363	$self->deactivate_recursive; # just to be sure
1654	unless (eval {	2364	unless (eval {
1655	prepare_random_map $exit	2365	$self->goto ($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		2366
1661	1;	2367	1;
1662	}) {	2368	}) {
1663	$self->message ("Something went wrong deep within the crossfire server. "	2369	$self->message ("Something went wrong deep within the crossfire server. "
1664	. "I'll try to bring you back to the map you were before. "	2370	. "I'll try to bring you back to the map you were before. "
1665	. "Please report this to the dungeon master",	2371	. "Please report this to the dungeon master!",
1666	cf::NDI_UNIQUE | cf::NDI_RED);	2372	cf::NDI_UNIQUE | cf::NDI_RED);
1667		2373
1668	warn "ERROR in enter_exit: $@";	2374	warn "ERROR in enter_exit: $@";
1669	$self->leave_link;	2375	$self->leave_link;
1670	}	2376	}
1671	})->prio (1);	2377	})->prio (1);
…		…
1684		2390
1685	sub cf::client::send_drawinfo {	2391	sub cf::client::send_drawinfo {
1686	my ($self, $text, $flags) = @_;	2392	my ($self, $text, $flags) = @_;
1687		2393
1688	utf8::encode $text;	2394	utf8::encode $text;
1689	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2395	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1690	}	2396	}
1691		2397
		2398	=item $client->send_msg ($color, $type, $msg, [extra...])
		2399
		2400	Send a drawinfo or msg packet to the client, formatting the msg for the
		2401	client if neccessary. C<$type> should be a string identifying the type of
		2402	the message, with C<log> being the default. If C<$color> is negative, suppress
		2403	the message unless the client supports the msg packet.
		2404
		2405	=cut
		2406
		2407	sub cf::client::send_msg {
		2408	my ($self, $color, $type, $msg, @extra) = @_;
		2409
		2410	$msg = $self->pl->expand_cfpod ($msg);
		2411
		2412	if ($self->can_msg) {
		2413	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2414	} else {
		2415	# replace some tags by gcfclient-compatible ones
		2416	for ($msg) {
		2417	1 while
		2418	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2419	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2420	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2421	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2422	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2423	}
		2424
		2425	if ($color >= 0) {
		2426	if (0 && $msg =~ /\[/) {
		2427	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2428	} else {
		2429	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2430	$self->send_packet ("drawinfo $color $msg")
		2431	}
		2432	}
		2433	}
		2434	}
		2435
		2436	=item $client->ext_event ($type, %msg)
		2437
		2438	Sends an ext event to the client.
		2439
		2440	=cut
		2441
		2442	sub cf::client::ext_event($$%) {
		2443	my ($self, $type, %msg) = @_;
		2444
		2445	$msg{msgtype} = "event_$type";
		2446	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2447	}
1692		2448
1693	=item $success = $client->query ($flags, "text", \&cb)	2449	=item $success = $client->query ($flags, "text", \&cb)
1694		2450
1695	Queues a query to the client, calling the given callback with	2451	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>,	2452	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>.	2453	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1698		2454
1699	Queries can fail, so check the return code. Or don't, as queries will become	2455	Queries can fail, so check the return code. Or don't, as queries will
1700	reliable at some point in the future.	2456	become reliable at some point in the future.
1701		2457
1702	=cut	2458	=cut
1703		2459
1704	sub cf::client::query {	2460	sub cf::client::query {
1705	my ($self, $flags, $text, $cb) = @_;	2461	my ($self, $flags, $text, $cb) = @_;
…		…
1713	utf8::encode $text;	2469	utf8::encode $text;
1714	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2470	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1715		2471
1716	$self->send_packet ($self->{query_queue}[0][0])	2472	$self->send_packet ($self->{query_queue}[0][0])
1717	if @{ $self->{query_queue} } == 1;	2473	if @{ $self->{query_queue} } == 1;
		2474
		2475	1
1718	}	2476	}
1719		2477
1720	cf::client->attach (	2478	cf::client->attach (
		2479	on_connect => sub {
		2480	my ($ns) = @_;
		2481
		2482	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2483	},
1721	on_reply => sub {	2484	on_reply => sub {
1722	my ($ns, $msg) = @_;	2485	my ($ns, $msg) = @_;
1723		2486
1724	# this weird shuffling is so that direct followup queries	2487	# this weird shuffling is so that direct followup queries
1725	# get handled first	2488	# get handled first
1726	my $queue = delete $ns->{query_queue}	2489	my $queue = delete $ns->{query_queue}
1727	or return; # be conservative, not sure how that can happen, but we saw a crash here	2490	or return; # be conservative, not sure how that can happen, but we saw a crash here
1728		2491
1729	(shift @$queue)->[1]->($msg);	2492	(shift @$queue)->[1]->($msg);
		2493	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1730		2494
1731	push @{ $ns->{query_queue} }, @$queue;	2495	push @{ $ns->{query_queue} }, @$queue;
1732		2496
1733	if (@{ $ns->{query_queue} } == @$queue) {	2497	if (@{ $ns->{query_queue} } == @$queue) {
1734	if (@$queue) {	2498	if (@$queue) {
…		…
1736	} else {	2500	} else {
1737	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2501	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1738	}	2502	}
1739	}	2503	}
1740	},	2504	},
		2505	on_exticmd => sub {
		2506	my ($ns, $buf) = @_;
		2507
		2508	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2509
		2510	if (ref $msg) {
		2511	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2512	if (my %reply = $cb->($ns, $msg)) {
		2513	$reply{msgid} = $msg->{msgid};
		2514	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2515	}
		2516	}
		2517	} else {
		2518	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2519	}
		2520
		2521	cf::override;
		2522	},
1741	);	2523	);
1742		2524
1743	=item $client->async (\&cb)	2525	=item $client->async (\&cb)
1744		2526
1745	Create a new coroutine, running the specified callback. The coroutine will	2527	Create a new coroutine, running the specified callback. The coroutine will
…		…
1792		2574
1793	# here we export the classes and methods available to script code	2575	# here we export the classes and methods available to script code
1794		2576
1795	=pod	2577	=pod
1796		2578
1797	The following fucntions and emthods are available within a safe environment:	2579	The following functions and methods are available within a safe environment:
1798		2580
1799	cf::object contr pay_amount pay_player map	2581	cf::object contr pay_amount pay_player map
1800	cf::object::player player	2582	cf::object::player player
1801	cf::player peaceful	2583	cf::player peaceful
1802	cf::map trigger	2584	cf::map trigger
…		…
1883	=back	2665	=back
1884		2666
1885	=cut	2667	=cut
1886		2668
1887	#############################################################################	2669	#############################################################################
		2670	# the server's init and main functions
1888		2671
1889	=head2 EXTENSION DATABASE SUPPORT	2672	sub load_facedata($) {
		2673	my ($path) = @_;
1890		2674
1891	Crossfire maintains a very simple database for extension use. It can	2675	warn "loading facedata from $path\n";
1892	currently store anything that can be serialised using Storable, which
1893	excludes objects.
1894		2676
1895	The parameter C<$family> should best start with the name of the extension	2677	my $facedata;
1896	using it, it should be unique.	2678	0 < aio_load $path, $facedata
		2679	or die "$path: $!";
1897		2680
1898	=over 4	2681	$facedata = Coro::Storable::thaw $facedata;
1899		2682
1900	=item $hashref = cf::db_get $family	2683	$facedata->{version} == 2
		2684	or cf::cleanup "$path: version mismatch, cannot proceed.";
1901		2685
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	}	2686	{
		2687	my $faces = $facedata->{faceinfo};
1938		2688
1939	my $pid;	2689	while (my ($face, $info) = each %$faces) {
1940		2690	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1941	sub db_save() {	2691	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1942	waitpid $pid, 0 if $pid;	2692	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1943	if (0 == ($pid = fork)) {	2693	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1944	$DB->{_meta}{version} = 1;	2694	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]} = $_[1];
1978	}
1979	db_dirty;
1980	}
1981
1982	cf::global->attach (
1983	prio => 10000,
1984	on_cleanup => sub {
1985	db_sync;
1986	},	2695	}
1987	);
1988	}
1989		2696
1990	#############################################################################	2697	while (my ($face, $info) = each %$faces) {
1991	# the server's main()	2698	next unless $info->{smooth};
		2699	my $idx = cf::face::find $face
		2700	or next;
		2701	if (my $smooth = cf::face::find $info->{smooth}) {
		2702	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2703	} else {
		2704	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2705	}
		2706	Coro::cede;
		2707	}
		2708	}
		2709
		2710	{
		2711	my $anims = $facedata->{animinfo};
		2712
		2713	while (my ($anim, $info) = each %$anims) {
		2714	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2715	Coro::cede;
		2716	}
		2717
		2718	cf::anim::invalidate_all; # d'oh
		2719	}
		2720
		2721	1
		2722	}
		2723
		2724	sub reload_regions {
		2725	load_resource_file "$MAPDIR/regions"
		2726	or die "unable to load regions file\n";
		2727	}
		2728
		2729	sub reload_facedata {
		2730	load_facedata "$DATADIR/facedata"
		2731	or die "unable to load facedata\n";
		2732	}
		2733
		2734	sub reload_archetypes {
		2735	load_resource_file "$DATADIR/archetypes"
		2736	or die "unable to load archetypes\n";
		2737	#d# NEED to laod twice to resolve forward references
		2738	# this really needs to be done in an extra post-pass
		2739	# (which needs to be synchronous, so solve it differently)
		2740	load_resource_file "$DATADIR/archetypes"
		2741	or die "unable to load archetypes\n";
		2742	}
		2743
		2744	sub reload_treasures {
		2745	load_resource_file "$DATADIR/treasures"
		2746	or die "unable to load treasurelists\n";
		2747	}
		2748
		2749	sub reload_resources {
		2750	warn "reloading resource files...\n";
		2751
		2752	reload_regions;
		2753	reload_facedata;
		2754	#reload_archetypes;#d#
		2755	reload_archetypes;
		2756	reload_treasures;
		2757
		2758	warn "finished reloading resource files\n";
		2759	}
		2760
		2761	sub init {
		2762	reload_resources;
		2763	}
1992		2764
1993	sub cfg_load {	2765	sub cfg_load {
1994	open my $fh, "<:utf8", cf::confdir . "/config"	2766	open my $fh, "<:utf8", "$CONFDIR/config"
1995	or return;	2767	or return;
1996		2768
1997	local $/;	2769	local $/;
1998	*CFG = YAML::Syck::Load <$fh>;	2770	*CFG = YAML::Syck::Load <$fh>;
1999		2771
…		…
2002	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2774	$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};	2775	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2004		2776
2005	if (exists $CFG{mlockall}) {	2777	if (exists $CFG{mlockall}) {
2006	eval {	2778	eval {
2007	$CFG{mlockall} ? &mlockall : &munlockall	2779	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2008	and die "WARNING: m(un)lockall failed: $!\n";	2780	and die "WARNING: m(un)lockall failed: $!\n";
2009	};	2781	};
2010	warn $@ if $@;	2782	warn $@ if $@;
2011	}	2783	}
2012	}	2784	}
2013		2785
2014	sub main {	2786	sub main {
2015	# we must not ever block the main coroutine	2787	# we must not ever block the main coroutine
2016	local $Coro::idle = sub {	2788	local $Coro::idle = sub {
2017	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2789	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2790	(async {
2018	async { Event::one_event };	2791	Event::one_event;
		2792	})->prio (Coro::PRIO_MAX);
2019	};	2793	};
2020		2794
2021	cfg_load;	2795	cfg_load;
2022	db_load;	2796	db_init;
2023	load_extensions;	2797	load_extensions;
		2798
		2799	$TICK_WATCHER->start;
2024	Event::loop;	2800	Event::loop;
2025	}	2801	}
2026		2802
2027	#############################################################################	2803	#############################################################################
2028	# initialisation	2804	# initialisation and cleanup
2029		2805
		2806	# install some emergency cleanup handlers
		2807	BEGIN {
		2808	for my $signal (qw(INT HUP TERM)) {
		2809	Event->signal (
		2810	reentrant => 0,
		2811	data => WF_AUTOCANCEL,
		2812	signal => $signal,
		2813	prio => 0,
		2814	cb => sub {
		2815	cf::cleanup "SIG$signal";
		2816	},
		2817	);
		2818	}
		2819	}
		2820
		2821	sub write_runtime {
		2822	my $runtime = "$LOCALDIR/runtime";
		2823
		2824	# first touch the runtime file to show we are still running:
		2825	# the fsync below can take a very very long time.
		2826
		2827	IO::AIO::aio_utime $runtime, undef, undef;
		2828
		2829	my $guard = cf::lock_acquire "write_runtime";
		2830
		2831	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2832	or return;
		2833
		2834	my $value = $cf::RUNTIME + 90 + 10;
		2835	# 10 is the runtime save interval, for a monotonic clock
		2836	# 60 allows for the watchdog to kill the server.
		2837
		2838	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2839	and return;
		2840
		2841	# always fsync - this file is important
		2842	aio_fsync $fh
		2843	and return;
		2844
		2845	# touch it again to show we are up-to-date
		2846	aio_utime $fh, undef, undef;
		2847
		2848	close $fh
		2849	or return;
		2850
		2851	aio_rename "$runtime~", $runtime
		2852	and return;
		2853
		2854	warn "runtime file written.\n";
		2855
		2856	1
		2857	}
		2858
		2859	sub emergency_save() {
		2860	my $freeze_guard = cf::freeze_mainloop;
		2861
		2862	warn "enter emergency perl save\n";
		2863
		2864	cf::sync_job {
		2865	# use a peculiar iteration method to avoid tripping on perl
		2866	# refcount bugs in for. also avoids problems with players
		2867	# and maps saved/destroyed asynchronously.
		2868	warn "begin emergency player save\n";
		2869	for my $login (keys %cf::PLAYER) {
		2870	my $pl = $cf::PLAYER{$login} or next;
		2871	$pl->valid or next;
		2872	$pl->save;
		2873	}
		2874	warn "end emergency player save\n";
		2875
		2876	warn "begin emergency map save\n";
		2877	for my $path (keys %cf::MAP) {
		2878	my $map = $cf::MAP{$path} or next;
		2879	$map->valid or next;
		2880	$map->save;
		2881	}
		2882	warn "end emergency map save\n";
		2883
		2884	warn "begin emergency database checkpoint\n";
		2885	BDB::db_env_txn_checkpoint $DB_ENV;
		2886	warn "end emergency database checkpoint\n";
		2887	};
		2888
		2889	warn "leave emergency perl save\n";
		2890	}
		2891
		2892	sub post_cleanup {
		2893	my ($make_core) = @_;
		2894
		2895	warn Carp::longmess "post_cleanup backtrace"
		2896	if $make_core;
		2897	}
		2898
2030	sub reload() {	2899	sub do_reload_perl() {
2031	# can/must only be called in main	2900	# can/must only be called in main
2032	if ($Coro::current != $Coro::main) {	2901	if ($Coro::current != $Coro::main) {
2033	warn "can only reload from main coroutine\n";	2902	warn "can only reload from main coroutine";
2034	return;	2903	return;
2035	}	2904	}
2036		2905
2037	warn "reloading...";	2906	warn "reloading...";
2038		2907
2039	my $guard = freeze_mainloop;	2908	warn "entering sync_job";
		2909
		2910	cf::sync_job {
		2911	cf::write_runtime; # external watchdog should not bark
2040	cf::emergency_save;	2912	cf::emergency_save;
		2913	cf::write_runtime; # external watchdog should not bark
2041		2914
2042	eval {	2915	warn "syncing database to disk";
		2916	BDB::db_env_txn_checkpoint $DB_ENV;
		2917
2043	# if anything goes wrong in here, we should simply crash as we already saved	2918	# if anything goes wrong in here, we should simply crash as we already saved
2044		2919
2045	# cancel all watchers	2920	warn "cancelling all WF_AUTOCANCEL watchers";
2046	for (Event::all_watchers) {	2921	for (Event::all_watchers) {
2047	$_->cancel if $_->data & WF_AUTOCANCEL;	2922	$_->cancel if $_->data & WF_AUTOCANCEL;
2048	}	2923	}
2049		2924
		2925	warn "flushing outstanding aio requests";
		2926	for (;;) {
		2927	BDB::flush;
		2928	IO::AIO::flush;
		2929	Coro::cede;
		2930	last unless IO::AIO::nreqs || BDB::nreqs;
		2931	warn "iterate...";
		2932	}
		2933
		2934	++$RELOAD;
		2935
2050	# cancel all extension coros	2936	warn "cancelling all extension coros";
2051	$_->cancel for values %EXT_CORO;	2937	$_->cancel for values %EXT_CORO;
2052	%EXT_CORO = ();	2938	%EXT_CORO = ();
2053		2939
2054	# unload all extensions	2940	warn "removing commands";
2055	for (@exts) {	2941	%COMMAND = ();
		2942
		2943	warn "removing ext/exti commands";
		2944	%EXTCMD = ();
		2945	%EXTICMD = ();
		2946
		2947	warn "unloading/nuking all extensions";
		2948	for my $pkg (@EXTS) {
2056	warn "unloading <$_>";	2949	warn "... unloading $pkg";
2057	unload_extension $_;	2950
		2951	if (my $cb = $pkg->can ("unload")) {
		2952	eval {
		2953	$cb->($pkg);
		2954	1
		2955	} or warn "$pkg unloaded, but with errors: $@";
2058	}	2956	}
2059		2957
		2958	warn "... nuking $pkg";
		2959	Symbol::delete_package $pkg;
		2960	}
		2961
2060	# unload all modules loaded from $LIBDIR	2962	warn "unloading all perl modules loaded from $LIBDIR";
2061	while (my ($k, $v) = each %INC) {	2963	while (my ($k, $v) = each %INC) {
2062	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2964	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2063		2965
2064	warn "removing <$k>";	2966	warn "... unloading $k";
2065	delete $INC{$k};	2967	delete $INC{$k};
2066		2968
2067	$k =~ s/\.pm$//;	2969	$k =~ s/\.pm$//;
2068	$k =~ s/\//::/g;	2970	$k =~ s/\//::/g;
2069		2971
…		…
2072	}	2974	}
2073		2975
2074	Symbol::delete_package $k;	2976	Symbol::delete_package $k;
2075	}	2977	}
2076		2978
2077	# sync database to disk
2078	cf::db_sync;
2079	IO::AIO::flush;
2080
2081	# get rid of safe::, as good as possible	2979	warn "getting rid of safe::, as good as possible";
2082	Symbol::delete_package "safe::$_"	2980	Symbol::delete_package "safe::$_"
2083	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2981	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2084		2982
2085	# remove register_script_function callbacks
2086	# TODO
2087
2088	# unload cf.pm "a bit"	2983	warn "unloading cf.pm \"a bit\"";
2089	delete $INC{"cf.pm"};	2984	delete $INC{"cf.pm"};
		2985	delete $INC{"cf/pod.pm"};
2090		2986
2091	# don't, removes xs symbols, too,	2987	# don't, removes xs symbols, too,
2092	# and global variables created in xs	2988	# and global variables created in xs
2093	#Symbol::delete_package __PACKAGE__;	2989	#Symbol::delete_package __PACKAGE__;
2094		2990
2095	# reload cf.pm	2991	warn "unload completed, starting to reload now";
		2992
2096	warn "reloading cf.pm";	2993	warn "reloading cf.pm";
2097	require cf;	2994	require cf;
2098	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2995	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2099		2996
2100	# load config and database again	2997	warn "loading config and database again";
2101	cf::cfg_load;	2998	cf::cfg_load;
2102	cf::db_load;
2103		2999
2104	# load extensions
2105	warn "load extensions";	3000	warn "loading extensions";
2106	cf::load_extensions;	3001	cf::load_extensions;
2107		3002
2108	# reattach attachments to objects	3003	warn "reattaching attachments to objects/players";
2109	warn "reattach";	3004	_global_reattach; # objects, sockets
2110	_global_reattach;	3005	warn "reattaching attachments to maps";
2111	};	3006	reattach $_ for values %MAP;
		3007	warn "reattaching attachments to players";
		3008	reattach $_ for values %PLAYER;
2112		3009
2113	if ($@) {	3010	warn "leaving sync_job";
		3011
		3012	1
		3013	} or do {
2114	warn $@;	3014	warn $@;
2115	warn "error while reloading, exiting.";	3015	warn "error while reloading, exiting.";
2116	exit 1;	3016	exit 1;
2117	}	3017	};
2118		3018
2119	warn "reloaded successfully";	3019	warn "reloaded";
2120	};	3020	};
2121		3021
2122	#############################################################################	3022	our $RELOAD_WATCHER; # used only during reload
2123		3023
2124	unless ($LINK_MAP) {	3024	sub reload_perl() {
2125	$LINK_MAP = cf::map::new;	3025	# doing reload synchronously and two reloads happen back-to-back,
		3026	# coro crashes during coro_state_free->destroy here.
2126		3027
2127	$LINK_MAP->width (41);	3028	$RELOAD_WATCHER ||= Event->timer (
2128	$LINK_MAP->height (41);	3029	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,	3030	after => 0,
		3031	data => WF_AUTOCANCEL,
2137	cb => sub {	3032	cb => sub {
2138	$_[0]->w->cancel;	3033	do_reload_perl;
2139		3034	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	});	3035	},
2158		3036	);
2159	$LINK_MAP->{deny_save} = 1;
2160	$LINK_MAP->{deny_reset} = 1;
2161
2162	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2163	}	3037	}
2164
2165	register "<global>", __PACKAGE__;
2166		3038
2167	register_command "reload" => sub {	3039	register_command "reload" => sub {
2168	my ($who, $arg) = @_;	3040	my ($who, $arg) = @_;
2169		3041
2170	if ($who->flag (FLAG_WIZ)) {	3042	if ($who->flag (FLAG_WIZ)) {
2171	$who->message ("start of reload.");
2172	reload;
2173	$who->message ("end of reload.");	3043	$who->message ("reloading server.");
		3044	async { reload_perl };
2174	}	3045	}
2175	};	3046	};
2176		3047
2177	unshift @INC, $LIBDIR;	3048	unshift @INC, $LIBDIR;
2178		3049
		3050	my $bug_warning = 0;
		3051
		3052	our @WAIT_FOR_TICK;
		3053	our @WAIT_FOR_TICK_BEGIN;
		3054
		3055	sub wait_for_tick {
		3056	return unless $TICK_WATCHER->is_active;
		3057	return if $Coro::current == $Coro::main;
		3058
		3059	my $signal = new Coro::Signal;
		3060	push @WAIT_FOR_TICK, $signal;
		3061	$signal->wait;
		3062	}
		3063
		3064	sub wait_for_tick_begin {
		3065	return unless $TICK_WATCHER->is_active;
		3066	return if $Coro::current == $Coro::main;
		3067
		3068	my $signal = new Coro::Signal;
		3069	push @WAIT_FOR_TICK_BEGIN, $signal;
		3070	$signal->wait;
		3071	}
		3072
		3073	my $min = 1e6;#d#
		3074	my $avg = 10;
2179	$TICK_WATCHER = Event->timer (	3075	$TICK_WATCHER = Event->timer (
2180	reentrant => 0,	3076	reentrant => 0,
		3077	parked => 1,
2181	prio => 0,	3078	prio => 0,
2182	at => $NEXT_TICK || $TICK,	3079	at => $NEXT_TICK || $TICK,
2183	data => WF_AUTOCANCEL,	3080	data => WF_AUTOCANCEL,
2184	cb => sub {	3081	cb => sub {
		3082	if ($Coro::current != $Coro::main) {
		3083	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3084	unless ++$bug_warning > 10;
		3085	return;
		3086	}
		3087
		3088	$NOW = $tick_start = Event::time;
		3089
2185	cf::server_tick; # one server iteration	3090	cf::server_tick; # one server iteration
		3091
		3092	0 && sync_job {#d#
		3093	for(1..10) {
		3094	my $t = Event::time;
		3095	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3096	or die;
		3097
		3098	$map->width (50);
		3099	$map->height (50);
		3100	$map->alloc;
		3101	$map->_load_objects ("/tmp/x.map", 1);
		3102	my $t = Event::time - $t;
		3103
		3104	#next unless $t < 0.0013;#d#
		3105	if ($t < $min) {
		3106	$min = $t;
		3107	}
		3108	$avg = $avg * 0.99 + $t * 0.01;
		3109	}
		3110	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3111	exit 0;
		3112	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3113	};
		3114
2186	$RUNTIME += $TICK;	3115	$RUNTIME += $TICK;
2187	$NEXT_TICK += $TICK;	3116	$NEXT_TICK += $TICK;
2188		3117
		3118	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3119	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3120	Coro::async_pool {
		3121	write_runtime
		3122	or warn "ERROR: unable to write runtime file: $!";
		3123	};
		3124	}
		3125
		3126	# my $AFTER = Event::time;
		3127	# warn $AFTER - $NOW;#d#
		3128
		3129	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3130	$sig->send;
		3131	}
		3132	while (my $sig = shift @WAIT_FOR_TICK) {
		3133	$sig->send;
		3134	}
		3135
		3136	$NOW = Event::time;
		3137
2189	# if we are delayed by four ticks or more, skip them all	3138	# if we are delayed by four ticks or more, skip them all
2190	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3139	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2191		3140
2192	$TICK_WATCHER->at ($NEXT_TICK);	3141	$TICK_WATCHER->at ($NEXT_TICK);
2193	$TICK_WATCHER->start;	3142	$TICK_WATCHER->start;
		3143
		3144	$LOAD = ($NOW - $tick_start) / $TICK;
		3145	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3146
		3147	_post_tick;
		3148
		3149
2194	},	3150	},
2195	);	3151	);
2196		3152
		3153	{
2197	IO::AIO::max_poll_time $TICK * 0.2;	3154	BDB::max_poll_time $TICK * 0.1;
2198		3155	$BDB_POLL_WATCHER = Event->io (
2199	Event->io (	3156	reentrant => 0,
2200	fd => IO::AIO::poll_fileno,	3157	fd => BDB::poll_fileno,
2201	poll => 'r',	3158	poll => 'r',
2202	prio => 5,	3159	prio => 0,
2203	data => WF_AUTOCANCEL,
2204	cb => \&IO::AIO::poll_cb,
2205	);
2206
2207	Event->timer (
2208	data => WF_AUTOCANCEL,	3160	data => WF_AUTOCANCEL,
2209	after => 0,	3161	cb => \&BDB::poll_cb,
2210	interval => 10,	3162	);
2211	cb => sub {	3163	BDB::min_parallel 8;
2212	(Coro::unblock_sub {	3164
2213	write_runtime	3165	BDB::set_sync_prepare {
2214	or warn "ERROR: unable to write runtime file: $!";	3166	my $status;
		3167	my $current = $Coro::current;
		3168	(
		3169	sub {
		3170	$status = $!;
		3171	$current->ready; undef $current;
		3172	},
		3173	sub {
		3174	Coro::schedule while defined $current;
		3175	$! = $status;
		3176	},
		3177	)
		3178	};
		3179
		3180	unless ($DB_ENV) {
		3181	$DB_ENV = BDB::db_env_create;
		3182
		3183	cf::sync_job {
		3184	eval {
		3185	BDB::db_env_open
		3186	$DB_ENV,
		3187	$BDBDIR,
		3188	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3189	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3190	0666;
		3191
		3192	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3193
		3194	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3195	$DB_ENV->set_lk_detect;
		3196	};
		3197
		3198	cf::cleanup "db_env_open(db): $@" if $@;
2215	})->();	3199	};
2216	},	3200	}
2217	);	3201	}
		3202
		3203	{
		3204	IO::AIO::min_parallel 8;
		3205
		3206	undef $Coro::AIO::WATCHER;
		3207	IO::AIO::max_poll_time $TICK * 0.1;
		3208	$AIO_POLL_WATCHER = Event->io (
		3209	reentrant => 0,
		3210	data => WF_AUTOCANCEL,
		3211	fd => IO::AIO::poll_fileno,
		3212	poll => 'r',
		3213	prio => 6,
		3214	cb => \&IO::AIO::poll_cb,
		3215	);
		3216	}
		3217
		3218	my $_log_backtrace;
		3219
		3220	sub _log_backtrace {
		3221	my ($msg, @addr) = @_;
		3222
		3223	$msg =~ s/\n//;
		3224
		3225	# limit the # of concurrent backtraces
		3226	if ($_log_backtrace < 2) {
		3227	++$_log_backtrace;
		3228	async {
		3229	my @bt = fork_call {
		3230	@addr = map { sprintf "%x", $_ } @addr;
		3231	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3232	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3233	or die "addr2line: $!";
		3234
		3235	my @funcs;
		3236	my @res = <$fh>;
		3237	chomp for @res;
		3238	while (@res) {
		3239	my ($func, $line) = splice @res, 0, 2, ();
		3240	push @funcs, "[$func] $line";
		3241	}
		3242
		3243	@funcs
		3244	};
		3245
		3246	LOG llevInfo, "[ABT] $msg\n";
		3247	LOG llevInfo, "[ABT] $_\n" for @bt;
		3248	--$_log_backtrace;
		3249	};
		3250	} else {
		3251	LOG llevInfo, "[ABT] $msg\n";
		3252	LOG llevInfo, "[ABT] [suppressed]\n";
		3253	}
		3254	}
		3255
		3256	# load additional modules
		3257	use cf::pod;
2218		3258
2219	END { cf::emergency_save }	3259	END { cf::emergency_save }
2220		3260
2221	1	3261	1
2222		3262

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