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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 2007 UTC vs.
Revision 1.287 by root, Mon Jun 25 05:43:45 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 BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXTICMD = ();
		55	our %EXT_CORO = (); # coroutines bound to extensions
		56	our %EXT_MAP = (); # pluggable maps
38		57
		58	our $RELOAD; # number of reloads so far
39	our @EVENT;	59	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		60
42	our $TICK = MAX_TIME * 1e-6;	61	our $CONFDIR = confdir;
		62	our $DATADIR = datadir;
		63	our $LIBDIR = "$DATADIR/ext";
		64	our $PODDIR = "$DATADIR/pod";
		65	our $MAPDIR = "$DATADIR/" . mapdir;
		66	our $LOCALDIR = localdir;
		67	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		68	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		69	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		70	our $RANDOMDIR = "$LOCALDIR/random";
		71	our $BDBDIR = "$LOCALDIR/db";
		72
		73	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	74	our $TICK_WATCHER;
		75	our $AIO_POLL_WATCHER;
		76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	77	our $NEXT_TICK;
45	our $NOW;	78	our $NOW;
		79	our $USE_FSYNC = 1; # use fsync to write maps - default off
		80
		81	our $BDB_POLL_WATCHER;
		82	our $DB_ENV;
46		83
47	our %CFG;	84	our %CFG;
48		85
49	our $UPTIME; $UPTIME ||= time;	86	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	87	our $RUNTIME;
51		88
		89	our %PLAYER; # all users
52	our %MAP; # all maps	90	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	91	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	92
55	our $RANDOM_MAPS = cf::localdir . "/random";	93	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	94	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		95
		96	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		97	our $LOADAVG; # same thing, but with alpha-smoothing
		98	our $tick_start; # for load detecting purposes
57		99
58	binmode STDOUT;	100	binmode STDOUT;
59	binmode STDERR;	101	binmode STDERR;
60		102
61	# read virtual server time, if available	103	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	104	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	105	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	106	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	107	$RUNTIME = <$fh> + 0.;
66	}	108	}
67		109
68	mkdir cf::localdir;	110	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	111	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		112
74	# a special map that is always available	113	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		114
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	115	sub cf::map::normalise;
78		116
79	#############################################################################	117	#############################################################################
80		118
81	=head2 GLOBAL VARIABLES	119	=head2 GLOBAL VARIABLES
82		120
…		…
89	=item $cf::RUNTIME	127	=item $cf::RUNTIME
90		128
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	129	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	130	every server tick.
93		131
94	=item $cf::LIBDIR	132	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		133	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		134	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		135
96	The perl library directory, where extensions and cf-specific modules can	136	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	137	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		138	unique-items directory, player file directory, random maps directory and
		139	database environment.
98		140
99	=item $cf::NOW	141	=item $cf::NOW
100		142
101	The time of the last (current) server tick.	143	The time of the last (current) server tick.
102		144
103	=item $cf::TICK	145	=item $cf::TICK
104		146
105	The interval between server ticks, in seconds.	147	The interval between server ticks, in seconds.
		148
		149	=item $cf::LOADAVG
		150
		151	The current CPU load on the server (alpha-smoothed), as a value between 0
		152	(none) and 1 (overloaded), indicating how much time is spent on processing
		153	objects per tick. Healthy values are < 0.5.
		154
		155	=item $cf::LOAD
		156
		157	The raw value load value from the last tick.
106		158
107	=item %cf::CFG	159	=item %cf::CFG
108		160
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	161	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	162	from wherever your confdir points to.
		163
		164	=item cf::wait_for_tick, cf::wait_for_tick_begin
		165
		166	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		167	returns directly I<after> the tick processing (and consequently, can only wake one process
		168	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		169
112	=back	170	=back
113		171
114	=cut	172	=cut
115		173
116	BEGIN {	174	BEGIN {
117	*CORE::GLOBAL::warn = sub {	175	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	176	my $msg = join "", @_;
119	utf8::encode $msg;
120		177
121	$msg .= "\n"	178	$msg .= "\n"
122	unless $msg =~ /\n$/;	179	unless $msg =~ /\n$/;
123		180
		181	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		182
		183	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	184	LOG llevError, $msg;
125	};	185	};
126	}	186	}
127		187
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	188	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	189	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	190	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	191	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	192	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		193	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	194	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		195
135	# we bless all objects into (empty) derived classes to force a method lookup	196	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	197	# within the Safe compartment.
137	for my $pkg (qw(	198	for my $pkg (qw(
138	cf::global cf::attachable	199	cf::global cf::attachable
…		…
147		208
148	$Event::DIED = sub {	209	$Event::DIED = sub {
149	warn "error in event callback: @_";	210	warn "error in event callback: @_";
150	};	211	};
151		212
152	my %ext_pkg;	213	#############################################################################
153	my @exts;
154	my @hook;
155		214
156	=head2 UTILITY FUNCTIONS	215	=head2 UTILITY FUNCTIONS
157		216
158	=over 4	217	=over 4
159		218
160	=cut	219	=item dumpval $ref
161		220
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	221	=cut
		222
		223	sub dumpval {
		224	eval {
		225	local $SIG{__DIE__};
		226	my $d;
		227	if (1) {
		228	$d = new Data::Dumper([$_[0]], ["*var"]);
		229	$d->Terse(1);
		230	$d->Indent(2);
		231	$d->Quotekeys(0);
		232	$d->Useqq(1);
		233	#$d->Bless(...);
		234	$d->Seen($_[1]) if @_ > 1;
		235	$d = $d->Dump();
		236	}
		237	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		238	$d
		239	} || "[unable to dump $_[0]: '$@']";
		240	}
		241
		242	use JSON::XS ();
163		243
164	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
165		245
166	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
167		247
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
176		249
177	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
178		251
179	=cut	252	=cut
180		253
181	sub to_json($) {	254	our $json_coder = JSON::XS->new->convert_blessed->utf8;
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	255
183	JSON::Syck::Dump $_[0]	256	sub to_json ($) { $json_coder->encode ($_[0]) }
		257	sub from_json ($) { $json_coder->decode ($_[0]) }
		258
		259	=item cf::lock_wait $string
		260
		261	Wait until the given lock is available. See cf::lock_acquire.
		262
		263	=item my $lock = cf::lock_acquire $string
		264
		265	Wait until the given lock is available and then acquires it and returns
		266	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		267	for example when the coroutine gets canceled), the lock is automatically
		268	returned.
		269
		270	Lock names should begin with a unique identifier (for example, cf::map::find
		271	uses map_find and cf::map::load uses map_load).
		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
		277	=cut
		278
		279	our %LOCK;
		280
		281	sub lock_wait($) {
		282	my ($key) = @_;
		283
		284	# wait for lock, if any
		285	while ($LOCK{$key}) {
		286	push @{ $LOCK{$key} }, $Coro::current;
		287	Coro::schedule;
		288	}
184	}	289	}
		290
		291	sub lock_acquire($) {
		292	my ($key) = @_;
		293
		294	# wait, to be sure we are not locked
		295	lock_wait $key;
		296
		297	$LOCK{$key} = [];
		298
		299	Coro::guard {
		300	# wake up all waiters, to be on the safe side
		301	$_->ready for @{ delete $LOCK{$key} };
		302	}
		303	}
		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
		309	}
		310
		311	sub freeze_mainloop {
		312	return unless $TICK_WATCHER->is_active;
		313
		314	my $guard = Coro::guard {
		315	$TICK_WATCHER->start;
		316	};
		317	$TICK_WATCHER->stop;
		318	$guard
		319	}
		320
		321	=item cf::async { BLOCK }
		322
		323	Currently the same as Coro::async_pool, meaning you cannot use
		324	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		325	thing you are allowed to do is call C<prio> on it.
		326
		327	=cut
		328
		329	BEGIN { *async = \&Coro::async_pool }
185		330
186	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
187		332
188	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
191		337
192	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
195	fast or be very important.	341	fast or be very important.
…		…
198		344
199	sub sync_job(&) {	345	sub sync_job(&) {
200	my ($job) = @_;	346	my ($job) = @_;
201		347
202	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
203	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
205		353
206	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	355	# (but this is cancel-safe)
208	local $FREEZE = 1;	356	my $freeze_guard = freeze_mainloop;
209		357
210	my $busy = 1;	358	my $busy = 1;
211	my @res;	359	my @res;
212		360
213	(Coro::async {	361	(async {
214	@res = eval { $job->() };	362	@res = eval { $job->() };
215	warn $@ if $@;	363	warn $@ if $@;
216	undef $busy;	364	undef $busy;
217	})->prio (Coro::PRIO_MAX);	365	})->prio (Coro::PRIO_MAX);
218		366
219	while ($busy) {	367	while ($busy) {
220	Coro::cede_notself;	368	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	369	}
		370
		371	$time = Event::time - $time;
		372
		373	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		374	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		375
		376	$tick_start += $time; # do not account sync jobs to server load
223		377
224	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
225	} else {	379	} else {
226	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
227		381
228	$job->()	382	$job->()
229	}	383	}
230	}	384	}
231		385
232	=item $coro = cf::coro { BLOCK }	386	=item $coro = cf::async_ext { BLOCK }
233		387
234	Creates and returns a new coro. This coro is automcatially being canceled	388	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	389	extension calling this is being unloaded.
236		390
237	=cut	391	=cut
238		392
239	sub coro(&) {	393	sub async_ext(&) {
240	my $cb = shift;	394	my $cb = shift;
241		395
242	my $coro; $coro = async {	396	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		397
249	$coro->on_destroy (sub {	398	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	399	delete $EXT_CORO{$coro+0};
251	});	400	});
252	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
253		402
254	$coro	403	$coro
255	}	404	}
256		405
257	sub write_runtime {	406	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		407
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	408	Executes the given code block with the given arguments in a seperate
261	or return;	409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
262		412
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	413	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		414
267	aio_fsync $fh	415	sub fork_call(&@) {
268	and return;	416	my ($cb, @args) = @_;
269		417
		418	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		419	# or die "socketpair: $!";
		420	pipe my $fh1, my $fh2
		421	or die "pipe: $!";
		422
		423	if (my $pid = fork) {
270	close $fh	424	close $fh2;
271	or return;
272		425
273	aio_rename "$runtime~", $runtime	426	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
274	and return;	427	$res = Coro::Storable::thaw $res;
275		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	die $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	eval {
		439	close $fh1;
		440
		441	my @res = eval { $cb->(@args) };
		442	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		443	};
		444
		445	warn $@ if $@;
		446	_exit 0;
276	1	447	}
		448	}
		449
		450	=item $value = cf::db_get $family => $key
		451
		452	Returns a single value from the environment database.
		453
		454	=item cf::db_put $family => $key => $value
		455
		456	Stores the given C<$value> in the family. It can currently store binary
		457	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		458
		459	=cut
		460
		461	our $DB;
		462
		463	sub db_init {
		464	unless ($DB) {
		465	$DB = BDB::db_create $DB_ENV;
		466
		467	cf::sync_job {
		468	eval {
		469	$DB->set_flags (BDB::CHKSUM);
		470
		471	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		472	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		473	cf::cleanup "db_open(db): $!" if $!;
		474	};
		475	cf::cleanup "db_open(db): $@" if $@;
		476	};
		477	}
		478	}
		479
		480	sub db_get($$) {
		481	my $key = "$_[0]/$_[1]";
		482
		483	cf::sync_job {
		484	BDB::db_get $DB, undef, $key, my $data;
		485
		486	$! ? ()
		487	: $data
		488	}
		489	}
		490
		491	sub db_put($$$) {
		492	BDB::dbreq_pri 4;
		493	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		494	}
		495
		496	=item cf::cache $id => [$paths...], $processversion => $process
		497
		498	Generic caching function that returns the value of the resource $id,
		499	caching and regenerating as required.
		500
		501	This function can block.
		502
		503	=cut
		504
		505	sub cache {
		506	my ($id, $src, $processversion, $process) = @_;
		507
		508	my $meta =
		509	join "\x00",
		510	$processversion,
		511	map {
		512	aio_stat $_
		513	and Carp::croak "$_: $!";
		514
		515	($_, (stat _)[7,9])
		516	} @$src;
		517
		518	my $dbmeta = db_get cache => "$id/meta";
		519	if ($dbmeta ne $meta) {
		520	# changed, we may need to process
		521
		522	my @data;
		523	my $md5;
		524
		525	for (0 .. $#$src) {
		526	0 <= aio_load $src->[$_], $data[$_]
		527	or Carp::croak "$src->[$_]: $!";
		528	}
		529
		530	# if processing is expensive, check
		531	# checksum first
		532	if (1) {
		533	$md5 =
		534	join "\x00",
		535	$processversion,
		536	map {
		537	Coro::cede;
		538	($src->[$_], Digest::MD5::md5_hex $data[$_])
		539	} 0.. $#$src;
		540
		541
		542	my $dbmd5 = db_get cache => "$id/md5";
		543	if ($dbmd5 eq $md5) {
		544	db_put cache => "$id/meta", $meta;
		545
		546	return db_get cache => "$id/data";
		547	}
		548	}
		549
		550	my $t1 = Time::HiRes::time;
		551	my $data = $process->(\@data);
		552	my $t2 = Time::HiRes::time;
		553
		554	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		555
		556	db_put cache => "$id/data", $data;
		557	db_put cache => "$id/md5" , $md5;
		558	db_put cache => "$id/meta", $meta;
		559
		560	return $data;
		561	}
		562
		563	db_get cache => "$id/data"
		564	}
		565
		566	=item cf::datalog type => key => value, ...
		567
		568	Log a datalog packet of the given type with the given key-value pairs.
		569
		570	=cut
		571
		572	sub datalog($@) {
		573	my ($type, %kv) = @_;
		574	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	575	}
278		576
279	=back	577	=back
280		578
281	=cut	579	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392		580
393	#############################################################################	581	#############################################################################
394		582
395	=head2 ATTACHABLE OBJECTS	583	=head2 ATTACHABLE OBJECTS
396		584
…		…
398	attach callbacks/event handlers (a collection of which is called an "attachment")	586	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	587	to it. All such attachable objects support the following methods.
400		588
401	In the following description, CLASS can be any of C<global>, C<object>	589	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	590	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	591	Crossfire TRT).
404		592
405	=over 4	593	=over 4
406		594
407	=item $attachable->attach ($attachment, key => $value...)	595	=item $attachable->attach ($attachment, key => $value...)
408		596
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	710	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	711	our @CB_MAP = ();
524		712
525	my %attachment;	713	my %attachment;
526		714
		715	sub cf::attachable::thawer_merge {
		716	# simply override everything except _meta
		717	local $_[0]{_meta};
		718	%{$_[0]} = %{$_[1]};
		719	}
		720
527	sub _attach_cb($$$$) {	721	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	722	my ($registry, $event, $prio, $cb) = @_;
529		723
530	use sort 'stable';	724	use sort 'stable';
531		725
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	759	$registry = $CB_TYPE[$object_type] ||= [];
566		760
567	} elsif ($type eq "subtype") {	761	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	762	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	763	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	764	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		765
572	} elsif ($type eq "package") {	766	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	767	my $pkg = shift @arg;
574		768
575	while (my ($name, $id) = each %cb_id) {	769	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	798	_attach $registry, $klass, @attach;
605	}	799	}
606		800
607	$obj->{$name} = \%arg;	801	$obj->{$name} = \%arg;
608	} else {	802	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	803	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	804	}
611		805
612	$obj->{_attachment}{$name} = undef;	806	$obj->{_attachment}{$name} = undef;
613	}	807	}
614		808
…		…
616	if (ref $_[0]) {	810	if (ref $_[0]) {
617	_object_attach @_;	811	_object_attach @_;
618	} else {	812	} else {
619	_attach shift->_attach_registry, @_;	813	_attach shift->_attach_registry, @_;
620	}	814	}
		815	_recalc_want;
621	};	816	};
622		817
623	# all those should be optimised	818	# all those should be optimised
624	sub cf::attachable::detach {	819	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	820	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	823	delete $obj->{_attachment}{$name};
629	reattach ($obj);	824	reattach ($obj);
630	} else {	825	} else {
631	Carp::croak "cannot, currently, detach class attachments";	826	Carp::croak "cannot, currently, detach class attachments";
632	}	827	}
		828	_recalc_want;
633	};	829	};
634		830
635	sub cf::attachable::attached {	831	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
637		833
…		…
702	# object support	898	# object support
703		899
704	sub reattach {	900	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	901	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	902	my ($obj) = @_;
		903
		904	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		905
708	my $registry = $obj->registry;	906	my $registry = $obj->registry;
709		907
710	@$registry = ();	908	@$registry = ();
711		909
…		…
758	$filename, length $$rdata, scalar @$objs;	956	$filename, length $$rdata, scalar @$objs;
759		957
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	958	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	959	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	960	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	962	close $fh;
765		963
766	if (@$objs) {	964	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	965	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	966	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	967	my $data = Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	968	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	969	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	970	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	971	aio_rename "$filename.pst~", "$filename.pst";
774	}	972	}
775	} else {	973	} else {
776	aio_unlink "$filename.pst";	974	aio_unlink "$filename.pst";
…		…
804	or return;	1002	or return;
805		1003
806	unless (aio_stat "$filename.pst") {	1004	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	1005	(aio_load "$filename.pst", $av) >= 0
808	or return;	1006	or return;
809	$av = eval { (Storable::thaw <$av>)->{objs} };	1007	$av = eval { (Storable::thaw $av)->{objs} };
810	}	1008	}
811		1009
		1010	warn sprintf "loading %s (%d)\n",
		1011	$filename, length $data, scalar @{$av || []};
812	return ($data, $av);	1012	return ($data, $av);
813	}	1013	}
		1014
		1015	=head2 COMMAND CALLBACKS
		1016
		1017	=over 4
		1018
		1019	=cut
814		1020
815	#############################################################################	1021	#############################################################################
816	# command handling &c	1022	# command handling &c
817		1023
818	=item cf::register_command $name => \&callback($ob,$args);	1024	=item cf::register_command $name => \&callback($ob,$args);
…		…
831	push @{ $COMMAND{$name} }, [$caller, $cb];	1037	push @{ $COMMAND{$name} }, [$caller, $cb];
832	}	1038	}
833		1039
834	=item cf::register_extcmd $name => \&callback($pl,$packet);	1040	=item cf::register_extcmd $name => \&callback($pl,$packet);
835		1041
836	Register a callbackf ro execution when the client sends an extcmd packet.	1042	Register a callback for execution when the client sends an (synchronous)
		1043	extcmd packet. Ext commands will be processed in the order they are
		1044	received by the server, like other user commands. The first argument is
		1045	the logged-in player. Ext commands can only be processed after a player
		1046	has logged in successfully.
837		1047
838	If the callback returns something, it is sent back as if reply was being	1048	If the callback returns something, it is sent back as if reply was being
839	called.	1049	called.
840		1050
		1051	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1052
		1053	Register a callback for execution when the client sends an (asynchronous)
		1054	exticmd packet. Exti commands are processed by the server as soon as they
		1055	are received, i.e. out of order w.r.t. other commands. The first argument
		1056	is a client socket. Exti commands can be received anytime, even before
		1057	log-in.
		1058
		1059	If the callback returns something, it is sent back as if reply was being
		1060	called.
		1061
841	=cut	1062	=cut
842		1063
843	sub register_extcmd {	1064	sub register_extcmd {
844	my ($name, $cb) = @_;	1065	my ($name, $cb) = @_;
845		1066
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	1067	$EXTCMD{$name} = $cb;
		1068	}
		1069
		1070	sub register_exticmd {
		1071	my ($name, $cb) = @_;
		1072
		1073	$EXTICMD{$name} = $cb;
850	}	1074	}
851		1075
852	cf::player->attach (	1076	cf::player->attach (
853	on_command => sub {	1077	on_command => sub {
854	my ($pl, $name, $params) = @_;	1078	my ($pl, $name, $params) = @_;
…		…
867		1091
868	my $msg = eval { from_json $buf };	1092	my $msg = eval { from_json $buf };
869		1093
870	if (ref $msg) {	1094	if (ref $msg) {
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1095	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	1096	if (my %reply = $cb->($pl, $msg)) {
873	$pl->ext_reply ($msg->{msgid}, %reply);	1097	$pl->ext_reply ($msg->{msgid}, %reply);
874	}	1098	}
875	}	1099	}
876	} else {	1100	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1101	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
879		1103
880	cf::override;	1104	cf::override;
881	},	1105	},
882	);	1106	);
883		1107
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	1108	sub load_extensions {
		1109	cf::sync_job {
		1110	my %todo;
		1111
		1112	for my $path (<$LIBDIR/*.ext>) {
		1113	next unless -r $path;
		1114
		1115	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1116	my $base = $1;
		1117	my $pkg = $1;
		1118	$pkg =~ s/[^[:word:]]/_/g;
		1119	$pkg = "ext::$pkg";
		1120
		1121	open my $fh, "<:utf8", $path
		1122	or die "$path: $!";
		1123
		1124	my $source = do { local $/; <$fh> };
		1125
		1126	my %ext = (
		1127	path => $path,
		1128	base => $base,
		1129	pkg => $pkg,
		1130	);
		1131
		1132	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1133	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1134
		1135	$ext{source} =
		1136	"package $pkg; use strict; use utf8;\n"
		1137	. "#line 1 \"$path\"\n{\n"
		1138	. $source
		1139	. "\n};\n1";
		1140
		1141	$todo{$base} = \%ext;
		1142	}
		1143
		1144	my %done;
		1145	while (%todo) {
		1146	my $progress;
		1147
		1148	while (my ($k, $v) = each %todo) {
		1149	for (split /,\s*/, $v->{meta}{depends}) {
		1150	goto skip
		1151	unless exists $done{$_};
		1152	}
		1153
		1154	warn "... loading '$k' into '$v->{pkg}'\n";
		1155
		1156	unless (eval $v->{source}) {
		1157	my $msg = $@ ? "$v->{path}: $@\n"
		1158	: "$v->{base}: extension inactive.\n";
		1159
		1160	if (exists $v->{meta}{mandatory}) {
		1161	warn $msg;
		1162	warn "mandatory extension failed to load, exiting.\n";
		1163	exit 1;
		1164	}
		1165
		1166	warn $msg;
		1167	}
		1168
		1169	$done{$k} = delete $todo{$k};
		1170	push @EXTS, $v->{pkg};
		1171	$progress = 1;
		1172	}
		1173
		1174	skip:
		1175	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1176	unless $progress;
		1177	}
		1178	};
		1179	}
		1180
		1181	#############################################################################
		1182
		1183	=back
		1184
		1185	=head2 CORE EXTENSIONS
		1186
		1187	Functions and methods that extend core crossfire objects.
		1188
		1189	=cut
		1190
		1191	package cf::player;
		1192
		1193	use Coro::AIO;
		1194
		1195	=head3 cf::player
		1196
		1197	=over 4
		1198
		1199	=item cf::player::find $login
		1200
		1201	Returns the given player object, loading it if necessary (might block).
		1202
		1203	=cut
		1204
		1205	sub playerdir($) {
		1206	"$PLAYERDIR/"
		1207	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1208	}
		1209
		1210	sub path($) {
		1211	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1212
		1213	(playerdir $login) . "/playerdata"
		1214	}
		1215
		1216	sub find_active($) {
		1217	$cf::PLAYER{$_[0]}
		1218	and $cf::PLAYER{$_[0]}->active
		1219	and $cf::PLAYER{$_[0]}
		1220	}
		1221
		1222	sub exists($) {
		1223	my ($login) = @_;
		1224
		1225	$cf::PLAYER{$login}
		1226	or cf::sync_job { !aio_stat path $login }
		1227	}
		1228
		1229	sub find($) {
		1230	return $cf::PLAYER{$_[0]} || do {
		1231	my $login = $_[0];
		1232
		1233	my $guard = cf::lock_acquire "user_find:$login";
		1234
		1235	$cf::PLAYER{$_[0]} || do {
		1236	# rename old playerfiles to new ones
		1237	#TODO: remove when no longer required
		1238	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1239	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1240	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1241	aio_unlink +(playerdir $login) . "/$login.pl";
		1242
		1243	my $pl = load_pl path $login
		1244	or return;
		1245	$cf::PLAYER{$login} = $pl
		1246	}
		1247	}
		1248	}
		1249
		1250	sub save($) {
		1251	my ($pl) = @_;
		1252
		1253	return if $pl->{deny_save};
		1254
		1255	my $path = path $pl;
		1256	my $guard = cf::lock_acquire "user_save:$path";
		1257
		1258	return if $pl->{deny_save};
		1259
		1260	aio_mkdir playerdir $pl, 0770;
		1261	$pl->{last_save} = $cf::RUNTIME;
		1262
		1263	$pl->save_pl ($path);
		1264	Coro::cede;
		1265	}
		1266
		1267	sub new($) {
		1268	my ($login) = @_;
		1269
		1270	my $self = create;
		1271
		1272	$self->ob->name ($login);
		1273	$self->{deny_save} = 1;
		1274
		1275	$cf::PLAYER{$login} = $self;
		1276
		1277	$self
		1278	}
		1279
		1280	=item $pl->quit_character
		1281
		1282	Nukes the player without looking back. If logged in, the connection will
		1283	be destroyed. May block for a long time.
		1284
		1285	=cut
		1286
		1287	sub quit_character {
		1288	my ($pl) = @_;
		1289
		1290	my $name = $pl->ob->name;
		1291
		1292	$pl->{deny_save} = 1;
		1293	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1294
		1295	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1296	$pl->deactivate;
		1297	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1298	$pl->ns->destroy if $pl->ns;
		1299
		1300	my $path = playerdir $pl;
		1301	my $temp = "$path~$cf::RUNTIME~deleting~";
		1302	aio_rename $path, $temp;
		1303	delete $cf::PLAYER{$pl->ob->name};
		1304	$pl->destroy;
		1305
		1306	my $prefix = qr<^~\Q$name\E/>;
		1307
		1308	# nuke player maps
		1309	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1310
		1311	IO::AIO::aio_rmtree $temp;
		1312	}
		1313
		1314	=item $pl->kick
		1315
		1316	Kicks a player out of the game. This destroys the connection.
		1317
		1318	=cut
		1319
		1320	sub kick {
		1321	my ($pl, $kicker) = @_;
		1322
		1323	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1324	$pl->killer ("kicked");
		1325	$pl->ns->destroy;
		1326	}
		1327
		1328	=item cf::player::list_logins
		1329
		1330	Returns am arrayref of all valid playernames in the system, can take a
		1331	while and may block, so not sync_job-capable, ever.
		1332
		1333	=cut
		1334
		1335	sub list_logins {
		1336	my $dirs = aio_readdir $PLAYERDIR
		1337	or return [];
		1338
		1339	my @logins;
		1340
		1341	for my $login (@$dirs) {
		1342	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1343	aio_read $fh, 0, 512, my $buf, 0 or next;
		1344	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1345
		1346	utf8::decode $login;
		1347	push @logins, $login;
		1348	}
		1349
		1350	\@logins
		1351	}
		1352
		1353	=item $player->maps
		1354
		1355	Returns an arrayref of map paths that are private for this
		1356	player. May block.
		1357
		1358	=cut
		1359
		1360	sub maps($) {
		1361	my ($pl) = @_;
		1362
		1363	$pl = ref $pl ? $pl->ob->name : $pl;
		1364
		1365	my $files = aio_readdir playerdir $pl
		1366	or return;
		1367
		1368	my @paths;
		1369
		1370	for (@$files) {
		1371	utf8::decode $_;
		1372	next if /\.(?:pl|pst)$/;
		1373	next unless /^$PATH_SEP/o;
		1374
		1375	push @paths, cf::map::normalise "~$pl/$_";
		1376	}
		1377
		1378	\@paths
		1379	}
		1380
		1381	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1382
		1383	Expand crossfire pod fragments into protocol xml.
		1384
		1385	=cut
		1386
		1387	sub expand_cfpod {
		1388	((my $self), (local $_)) = @_;
		1389
		1390	# escape & and <
		1391	s/&/&amp;/g;
		1392	s/(?<![BIUGH])</&lt;/g;
		1393
		1394	# this is buggy, it needs to properly take care of nested <'s
		1395
		1396	1 while
		1397	# replace B<>, I<>, U<> etc.
		1398	s/B<([^\>]*)>/<b>$1<\/b>/
		1399	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1400	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1401	# replace G<male|female> tags
		1402	|| s{G<([^>|]*)\|([^>]*)>}{
		1403	$self->gender ? $2 : $1
		1404	}ge
		1405	# replace H<hint text>
		1406	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1407
		1408	# create single paragraphs (very hackish)
		1409	s/(?<=\S)\n(?=\w)/ /g;
		1410
		1411	$_
		1412	}
		1413
		1414	=item $player->ext_reply ($msgid, %msg)
		1415
		1416	Sends an ext reply to the player.
		1417
		1418	=cut
		1419
		1420	sub ext_reply($$%) {
		1421	my ($self, $id, %msg) = @_;
		1422
		1423	$msg{msgid} = $id;
		1424	$self->send ("ext " . cf::to_json \%msg);
		1425	}
		1426
		1427	=item $player->ext_event ($type, %msg)
		1428
		1429	Sends an ext event to the client.
		1430
		1431	=cut
		1432
		1433	sub ext_event($$%) {
		1434	my ($self, $type, %msg) = @_;
		1435
		1436	$self->ns->ext_event ($type, %msg);
		1437	}
		1438
		1439	=head3 cf::region
		1440
		1441	=over 4
		1442
		1443	=cut
		1444
		1445	package cf::region;
		1446
		1447	=item cf::region::find_by_path $path
		1448
		1449	Tries to decuce the likely region for a map knowing only its path.
		1450
		1451	=cut
		1452
		1453	sub find_by_path($) {
891	my ($path) = @_;	1454	my ($path) = @_;
892		1455
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1456	my ($match, $specificity);
894	my $base = $1;
895	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";
898		1457
899	warn "loading '$path' into '$pkg'\n";	1458	for my $region (list) {
900		1459	if ($region->match && $path =~ $region->match) {
901	open my $fh, "<:utf8", $path	1460	($match, $specificity) = ($region, $region->specificity)
902	or die "$path: $!";	1461	if $region->specificity > $specificity;
903		1462	}
904	my $source =
905	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })
908	. "\n};\n1";
909
910	eval $source
911	or die $@ ? "$path: $@\n"
912	: "extension disabled.\n";
913
914	push @exts, $pkg;
915	$ext_pkg{$base} = $pkg;
916
917	# no strict 'refs';
918	# @{"$pkg\::ISA"} = ext::;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }	1463	}
933		1464
934	# remove commands	1465	$match
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}
943	}
944
945	# remove extcmds
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}
959
960	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;
963	eval {
964	load_extension $ext;
965	1
966	} or warn "$ext not loaded: $@";
967	}
968	}
969
970	#############################################################################
971	# load/save/clean perl data associated with a map
972
973	*cf::mapsupport::on_clean = sub {
974	my ($map) = @_;
975
976	my $path = $map->tmpname;
977	defined $path or return;
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}
990
991	# TODO: compatibility cruft, remove when no longer needed
992	cf::player->attach (
993	on_load => sub {
994	my ($pl, $path) = @_;
995
996	for my $o (all_objects $pl->ob) {
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
998	$o->set_ob_key_value ("_perl_data");
999
1000	%$o = %{ Storable::thaw pack "H*", $value };
1001	}
1002	}
1003	},
1004	);
1005
1006	#############################################################################
1007
1008	=head2 CORE EXTENSIONS
1009
1010	Functions and methods that extend core crossfire objects.
1011
1012	=head3 cf::player
1013
1014	=over 4
1015
1016	=item cf::player::exists $login
1017
1018	Returns true when the given account exists.
1019
1020	=cut
1021
1022	sub cf::player::exists($) {
1023	cf::player::find $_[0]
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1025	}
1026
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)
1028
1029	Sends an ext reply to the player.
1030
1031	=cut
1032
1033	sub cf::player::ext_reply($$$%) {
1034	my ($self, $id, %msg) = @_;
1035
1036	$msg{msgid} = $id;
1037
1038	$self->send ("ext " . to_json \%msg);
1039	}	1466	}
1040		1467
1041	=back	1468	=back
1042
1043		1469
1044	=head3 cf::map	1470	=head3 cf::map
1045		1471
1046	=over 4	1472	=over 4
1047		1473
…		…
1050	package cf::map;	1476	package cf::map;
1051		1477
1052	use Fcntl;	1478	use Fcntl;
1053	use Coro::AIO;	1479	use Coro::AIO;
1054		1480
		1481	use overload
		1482	'""' => \&as_string,
		1483	fallback => 1;
		1484
1055	our $MAX_RESET = 7200;	1485	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1486	our $DEFAULT_RESET = 3000;
1057		1487
1058	sub generate_random_map {	1488	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1489	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1490	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1491	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1492	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1493	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1494	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1495	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1496	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1497	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1498	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1499	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1500	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1501	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1502	(cf::region::find $rmp->{region}), $rmp->{custom}
		1503	)
		1504	}
		1505
		1506	=item cf::map->register ($regex, $prio)
		1507
		1508	Register a handler for the map path matching the given regex at the
		1509	givne priority (higher is better, built-in handlers have priority 0, the
		1510	default).
		1511
		1512	=cut
		1513
		1514	sub register {
		1515	my (undef, $regex, $prio) = @_;
		1516	my $pkg = caller;
		1517
		1518	no strict;
		1519	push @{"$pkg\::ISA"}, __PACKAGE__;
		1520
		1521	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1522	}
		1523
		1524	# also paths starting with '/'
		1525	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1526
		1527	sub thawer_merge {
		1528	my ($self, $merge) = @_;
		1529
		1530	# we have to keep some variables in memory intact
		1531	local $self->{path};
		1532	local $self->{load_path};
		1533
		1534	$self->SUPER::thawer_merge ($merge);
		1535	}
		1536
		1537	sub normalise {
		1538	my ($path, $base) = @_;
		1539
		1540	$path = "$path"; # make sure its a string
		1541
		1542	$path =~ s/\.map$//;
		1543
		1544	# map plan:
		1545	#
		1546	# /! non-realised random map exit (special hack!)
		1547	# {... are special paths that are not being touched
		1548	# ?xxx/... are special absolute paths
		1549	# ?random/... random maps
		1550	# /... normal maps
		1551	# ~user/... per-player map of a specific user
		1552
		1553	$path =~ s/$PATH_SEP/\//go;
		1554
		1555	# treat it as relative path if it starts with
		1556	# something that looks reasonable
		1557	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1558	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1559
		1560	$base =~ s{[^/]+/?$}{};
		1561	$path = "$base/$path";
		1562	}
		1563
		1564	for ($path) {
		1565	redo if s{//}{/};
		1566	redo if s{/\.?/}{/};
		1567	redo if s{/[^/]+/\.\./}{/};
		1568	}
		1569
		1570	$path
		1571	}
		1572
		1573	sub new_from_path {
		1574	my (undef, $path, $base) = @_;
		1575
		1576	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1577
		1578	$path = normalise $path, $base;
		1579
		1580	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1581	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1582	my $self = bless cf::map::new, $pkg;
		1583	$self->{path} = $path; $self->path ($path);
		1584	$self->init; # pass $1 etc.
		1585	return $self;
		1586	}
		1587	}
		1588
		1589	Carp::carp "unable to resolve path '$path' (base '$base').";
		1590	()
		1591	}
		1592
		1593	sub init {
		1594	my ($self) = @_;
		1595
		1596	$self
		1597	}
		1598
		1599	sub as_string {
		1600	my ($self) = @_;
		1601
		1602	"$self->{path}"
		1603	}
		1604
		1605	# the displayed name, this is a one way mapping
		1606	sub visible_name {
		1607	&as_string
		1608	}
		1609
		1610	# the original (read-only) location
		1611	sub load_path {
		1612	my ($self) = @_;
		1613
		1614	"$MAPDIR/$self->{path}.map"
		1615	}
		1616
		1617	# the temporary/swap location
		1618	sub save_path {
		1619	my ($self) = @_;
		1620
		1621	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1622	"$TMPDIR/$path.map"
		1623	}
		1624
		1625	# the unique path, undef == no special unique path
		1626	sub uniq_path {
		1627	my ($self) = @_;
		1628
		1629	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1630	"$UNIQUEDIR/$path"
1075	}	1631	}
1076		1632
1077	# and all this just because we cannot iterate over	1633	# and all this just because we cannot iterate over
1078	# all maps in C++...	1634	# all maps in C++...
1079	sub change_all_map_light {	1635	sub change_all_map_light {
1080	my ($change) = @_;	1636	my ($change) = @_;
1081		1637
1082	$_->change_map_light ($change) for values %cf::MAP;	1638	$_->change_map_light ($change)
		1639	for grep $_->outdoor, values %cf::MAP;
1083	}	1640	}
1084		1641
		1642	sub decay_objects {
		1643	my ($self) = @_;
		1644
		1645	return if $self->{deny_reset};
		1646
		1647	$self->do_decay_objects;
		1648	}
		1649
		1650	sub unlink_save {
		1651	my ($self) = @_;
		1652
		1653	utf8::encode (my $save = $self->save_path);
		1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1655	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1656	}
		1657
1085	sub try_load_header($) {	1658	sub load_header_from($) {
1086	my ($path) = @_;	1659	my ($self, $path) = @_;
1087		1660
1088	utf8::encode $path;	1661	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1662	#aio_open $path, O_RDONLY, 0
		1663	# or return;
		1664
		1665	$self->_load_header ($path)
1090	or return;	1666	or return;
1091		1667
1092	my $map = cf::map::new	1668	$self->{load_path} = $path;
		1669
		1670	1
		1671	}
		1672
		1673	sub load_header_orig {
		1674	my ($self) = @_;
		1675
		1676	$self->load_header_from ($self->load_path)
		1677	}
		1678
		1679	sub load_header_temp {
		1680	my ($self) = @_;
		1681
		1682	$self->load_header_from ($self->save_path)
		1683	}
		1684
		1685	sub prepare_temp {
		1686	my ($self) = @_;
		1687
		1688	$self->last_access ((delete $self->{last_access})
		1689	|| $cf::RUNTIME); #d#
		1690	# safety
		1691	$self->{instantiate_time} = $cf::RUNTIME
		1692	if $self->{instantiate_time} > $cf::RUNTIME;
		1693	}
		1694
		1695	sub prepare_orig {
		1696	my ($self) = @_;
		1697
		1698	$self->{load_original} = 1;
		1699	$self->{instantiate_time} = $cf::RUNTIME;
		1700	$self->last_access ($cf::RUNTIME);
		1701	$self->instantiate;
		1702	}
		1703
		1704	sub load_header {
		1705	my ($self) = @_;
		1706
		1707	if ($self->load_header_temp) {
		1708	$self->prepare_temp;
		1709	} else {
		1710	$self->load_header_orig
1093	or return;	1711	or return;
		1712	$self->prepare_orig;
		1713	}
1094		1714
1095	$map->load_header ($path)	1715	$self->{deny_reset} = 1
1096	or return;	1716	if $self->no_reset;
1097		1717
1098	$map->{load_path} = $path;	1718	$self->default_region (cf::region::find_by_path $self->{path})
		1719	unless $self->default_region;
1099		1720
1100	$map	1721	1
1101	}	1722	}
1102		1723
		1724	sub find;
1103	sub find_map {	1725	sub find {
1104	my ($path, $origin) = @_;	1726	my ($path, $origin) = @_;
1105		1727
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1728	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1729
		1730	cf::lock_wait "map_find:$path";
		1731
1111	$cf::MAP{$key} || do {	1732	$cf::MAP{$path} || do {
1112	# do it the slow way	1733	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1734	my $map = new_from_path cf::map $path
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	1735	or return;
1127		1736
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	1737	$map->{last_save} = $cf::RUNTIME;
1139		1738
1140	if ($map->should_reset) {	1739	$map->load_header
		1740	or return;
		1741
		1742	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1743	# doing this can freeze the server in a sync job, obviously
		1744	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1745	$map->reset;
1142	$map = find_map $path;	1746	undef $guard;
		1747	return find $path;
1143	}	1748	}
1144		1749
1145	$cf::MAP{$key} = $map	1750	$cf::MAP{$path} = $map
1146	}	1751	}
1147	}	1752	}
		1753
		1754	sub pre_load { }
		1755	sub post_load { }
1148		1756
1149	sub load {	1757	sub load {
1150	my ($self) = @_;	1758	my ($self) = @_;
1151		1759
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1760	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		1761
1156	my $path = $self->{path};	1762	my $path = $self->{path};
1157		1763
		1764	{
		1765	my $guard = cf::lock_acquire "map_load:$path";
		1766
		1767	return if $self->in_memory != cf::MAP_SWAPPED;
		1768
		1769	$self->in_memory (cf::MAP_LOADING);
		1770
1158	$self->alloc;	1771	$self->alloc;
		1772
		1773	$self->pre_load;
		1774	Coro::cede;
		1775
1159	$self->load_objects ($self->{load_path}, 1)	1776	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1777	or return;
1161		1778
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1779	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1780	if delete $self->{load_original};
1164		1781
1165	if (my $uniq = $path->uniq_path) {	1782	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1783	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1784	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1785	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1786	$self->_load_objects ($uniq, 0);
1170	}	1787	}
1171	}	1788	}
1172		1789
		1790	Coro::cede;
1173	# now do the right thing for maps	1791	# now do the right thing for maps
1174	$self->link_multipart_objects;	1792	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1793	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1794	unless $self->difficulty;
		1795	Coro::cede;
		1796
		1797	unless ($self->{deny_activate}) {
		1798	$self->decay_objects;
		1799	$self->fix_auto_apply;
		1800	$self->update_buttons;
		1801	Coro::cede;
		1802	$self->set_darkness_map;
		1803	Coro::cede;
1186	$self->activate;	1804	$self->activate;
1187	}	1805	}
1188		1806
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1807	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1808	}
1191		1809
1192	sub load_map_sync {	1810	$self->post_load;
		1811	}
		1812
		1813	sub customise_for {
		1814	my ($self, $ob) = @_;
		1815
		1816	return find "~" . $ob->name . "/" . $self->{path}
		1817	if $self->per_player;
		1818
		1819	# return find "?party/" . $ob->name . "/" . $self->{path}
		1820	# if $self->per_party;
		1821
		1822	$self
		1823	}
		1824
		1825	# find and load all maps in the 3x3 area around a map
		1826	sub load_diag {
		1827	my ($map) = @_;
		1828
		1829	my @diag; # diagonal neighbours
		1830
		1831	for (0 .. 3) {
		1832	my $neigh = $map->tile_path ($_)
		1833	or next;
		1834	$neigh = find $neigh, $map
		1835	or next;
		1836	$neigh->load;
		1837
		1838	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1839	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1840	}
		1841
		1842	for (@diag) {
		1843	my $neigh = find @$_
		1844	or next;
		1845	$neigh->load;
		1846	}
		1847	}
		1848
		1849	sub find_sync {
1193	my ($path, $origin) = @_;	1850	my ($path, $origin) = @_;
1194		1851
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1852	cf::sync_job { find $path, $origin }
		1853	}
1196		1854
1197	cf::sync_job {	1855	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1856	my ($map) = @_;
1199	or return;	1857
		1858	cf::sync_job { $map->load };
		1859	}
		1860
		1861	our %MAP_PREFETCH;
		1862	our $MAP_PREFETCHER = undef;
		1863
		1864	sub find_async {
		1865	my ($path, $origin) = @_;
		1866
		1867	$path = normalise $path, $origin && $origin->{path};
		1868
		1869	if (my $map = $cf::MAP{$path}) {
		1870	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1871	}
		1872
		1873	undef $MAP_PREFETCH{$path};
		1874	$MAP_PREFETCHER ||= cf::async {
		1875	while (%MAP_PREFETCH) {
		1876	for my $path (keys %MAP_PREFETCH) {
		1877	my $map = find $path
		1878	or next;
1200	$map->load;	1879	$map->load;
1201	$map	1880
		1881	delete $MAP_PREFETCH{$path};
		1882	}
		1883	}
		1884	undef $MAP_PREFETCHER;
1202	}	1885	};
		1886	$MAP_PREFETCHER->prio (6);
		1887
		1888	()
1203	}	1889	}
1204		1890
1205	sub save {	1891	sub save {
1206	my ($self) = @_;	1892	my ($self) = @_;
1207		1893
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1894	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1895
1211	$self->{last_save} = $cf::RUNTIME;	1896	$self->{last_save} = $cf::RUNTIME;
1212		1897
1213	return unless $self->dirty;	1898	return unless $self->dirty;
1214		1899
		1900	my $save = $self->save_path; utf8::encode $save;
		1901	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1902
1215	$self->{load_path} = $save;	1903	$self->{load_path} = $save;
1216		1904
1217	return if $self->{deny_save};	1905	return if $self->{deny_save};
1218		1906
		1907	local $self->{last_access} = $self->last_access;#d#
		1908
		1909	cf::async {
		1910	$_->contr->save for $self->players;
		1911	};
		1912
1219	if ($uniq) {	1913	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1914	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1915	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1916	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1917	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1918	}
1225	}	1919	}
1226		1920
1227	sub swap_out {	1921	sub swap_out {
1228	my ($self) = @_;	1922	my ($self) = @_;
		1923
		1924	# save first because save cedes
		1925	$self->save;
		1926
		1927	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1928
1230	return if $self->players;	1929	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1930	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1931	return if $self->{deny_save};
1233		1932
1234	$self->save;
1235	$self->clear;	1933	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1934	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1935	}
1238		1936
1239	sub reset_at {	1937	sub reset_at {
1240	my ($self) = @_;	1938	my ($self) = @_;
1241		1939
1242	# TODO: safety, remove and allow resettable per-player maps	1940	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	1941	return 1e99 if $self->{deny_reset};
1245		1942
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1943	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1944	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1945
1250	$time + $to	1946	$time + $to
1251	}	1947	}
1252		1948
1253	sub should_reset {	1949	sub should_reset {
1254	my ($self) = @_;	1950	my ($self) = @_;
1255		1951
1256	$self->reset_at <= $cf::RUNTIME	1952	$self->reset_at <= $cf::RUNTIME
1257	}	1953	}
1258		1954
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub reset {	1955	sub reset {
1268	my ($self) = @_;	1956	my ($self) = @_;
1269		1957
		1958	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1959
1270	return if $self->players;	1960	return if $self->players;
1271	return if $self->{path}{user_rel};#d#
1272		1961
1273	warn "resetting map ", $self->path;#d#	1962	warn "resetting map ", $self->path;
		1963
		1964	$self->in_memory (cf::MAP_SWAPPED);
		1965
		1966	# need to save uniques path
		1967	unless ($self->{deny_save}) {
		1968	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1969
		1970	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1971	if $uniq;
		1972	}
1274		1973
1275	delete $cf::MAP{$self->path};	1974	delete $cf::MAP{$self->path};
		1975
		1976	$self->clear;
1276		1977
1277	$_->clear_links_to ($self) for values %cf::MAP;	1978	$_->clear_links_to ($self) for values %cf::MAP;
1278		1979
1279	$self->unlink_save;	1980	$self->unlink_save;
1280	$self->destroy;	1981	$self->destroy;
1281	}	1982	}
1282		1983
1283	sub customise_for {	1984	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		1985
1286	if ($map->per_player) {	1986	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1987	my ($self) = @_;
		1988
		1989	delete $cf::MAP{$self->path};
		1990
		1991	$self->unlink_save;
		1992
		1993	bless $self, "cf::map";
		1994	delete $self->{deny_reset};
		1995	$self->{deny_save} = 1;
		1996	$self->reset_timeout (1);
		1997	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1998
		1999	$cf::MAP{$self->path} = $self;
		2000
		2001	$self->reset; # polite request, might not happen
		2002	}
		2003
		2004	=item $maps = cf::map::tmp_maps
		2005
		2006	Returns an arrayref with all map paths of currently instantiated and saved
		2007	maps. May block.
		2008
		2009	=cut
		2010
		2011	sub tmp_maps() {
1288	}	2012	[
1289		2013	map {
1290	$map	2014	utf8::decode $_;
		2015	/\.map$/
		2016	? normalise $_
		2017	: ()
		2018	} @{ aio_readdir $TMPDIR or [] }
		2019	]
1291	}	2020	}
1292		2021
1293	sub emergency_save {	2022	=item $maps = cf::map::random_maps
1294	local $cf::FREEZE = 1;
1295		2023
1296	warn "enter emergency map save\n";	2024	Returns an arrayref with all map paths of currently instantiated and saved
		2025	random maps. May block.
1297		2026
1298	cf::sync_job {	2027	=cut
1299	warn "begin emergency map save\n";
1300	$_->save for values %cf::MAP;
1301	};
1302		2028
1303	warn "end emergency map save\n";	2029	sub random_maps() {
		2030	[
		2031	map {
		2032	utf8::decode $_;
		2033	/\.map$/
		2034	? normalise "?random/$_"
		2035	: ()
		2036	} @{ aio_readdir $RANDOMDIR or [] }
		2037	]
		2038	}
		2039
		2040	=item cf::map::unique_maps
		2041
		2042	Returns an arrayref of paths of all shared maps that have
		2043	instantiated unique items. May block.
		2044
		2045	=cut
		2046
		2047	sub unique_maps() {
		2048	[
		2049	map {
		2050	utf8::decode $_;
		2051	/\.map$/
		2052	? normalise $_
		2053	: ()
		2054	} @{ aio_readdir $UNIQUEDIR or [] }
		2055	]
1304	}	2056	}
1305		2057
1306	package cf;	2058	package cf;
1307		2059
1308	=back	2060	=back
1309		2061
		2062	=head3 cf::object
		2063
		2064	=cut
		2065
		2066	package cf::object;
		2067
		2068	=over 4
		2069
		2070	=item $ob->inv_recursive
		2071
		2072	Returns the inventory of the object _and_ their inventories, recursively.
		2073
		2074	=cut
		2075
		2076	sub inv_recursive_;
		2077	sub inv_recursive_ {
		2078	map { $_, inv_recursive_ $_->inv } @_
		2079	}
		2080
		2081	sub inv_recursive {
		2082	inv_recursive_ inv $_[0]
		2083	}
		2084
		2085	package cf;
		2086
		2087	=back
1310		2088
1311	=head3 cf::object::player	2089	=head3 cf::object::player
1312		2090
1313	=over 4	2091	=over 4
1314		2092
…		…
1328		2106
1329	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2107	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1330		2108
1331	if ($self->{record_replies}) {	2109	if ($self->{record_replies}) {
1332	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2110	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2111
1333	} else {	2112	} else {
		2113	my $pl = $self->contr;
		2114
		2115	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2116	my $diag = $pl->{npc_dialog};
		2117	$diag->{pl}->ext_reply (
		2118	$diag->{id},
		2119	msgtype => "reply",
		2120	msg => $diag->{pl}->expand_cfpod ($msg),
		2121	add_topics => []
		2122	);
		2123
		2124	} else {
1334	$msg = $npc->name . " says: $msg" if $npc;	2125	$msg = $npc->name . " says: $msg" if $npc;
1335	$self->message ($msg, $flags);	2126	$self->message ($msg, $flags);
		2127	}
1336	}	2128	}
1337	}	2129	}
1338		2130
1339	=item $player_object->may ("access")	2131	=item $player_object->may ("access")
1340		2132
…		…
1350	(ref $cf::CFG{"may_$access"}	2142	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2143	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	2144	: $cf::CFG{"may_$access"})
1353	}	2145	}
1354		2146
		2147	=item $player_object->enter_link
		2148
		2149	Freezes the player and moves him/her to a special map (C<{link}>).
		2150
		2151	The player should be reasonably safe there for short amounts of time. You
		2152	I<MUST> call C<leave_link> as soon as possible, though.
		2153
		2154	Will never block.
		2155
		2156	=item $player_object->leave_link ($map, $x, $y)
		2157
		2158	Moves the player out of the special C<{link}> map onto the specified
		2159	map. If the map is not valid (or omitted), the player will be moved back
		2160	to the location he/she was before the call to C<enter_link>, or, if that
		2161	fails, to the emergency map position.
		2162
		2163	Might block.
		2164
		2165	=cut
		2166
		2167	sub link_map {
		2168	unless ($LINK_MAP) {
		2169	$LINK_MAP = cf::map::find "{link}"
		2170	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2171	$LINK_MAP->load;
		2172	}
		2173
		2174	$LINK_MAP
		2175	}
		2176
1355	sub cf::object::player::enter_link {	2177	sub cf::object::player::enter_link {
1356	my ($self) = @_;	2178	my ($self) = @_;
1357		2179
1358	return if $self->map == $LINK_MAP;
1359
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;
1362
1363	$self->enter_map ($LINK_MAP, 20, 20);
1364	$self->deactivate_recursive;	2180	$self->deactivate_recursive;
		2181
		2182	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2183
		2184	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2185	if $self->map && $self->map->{path} ne "{link}";
		2186
		2187	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1365	}	2188	}
1366		2189
1367	sub cf::object::player::leave_link {	2190	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	2191	my ($self, $map, $x, $y) = @_;
1369		2192
		2193	return unless $self->contr->active;
		2194
1370	my $link_pos = delete $self->{_link_pos};	2195	my $link_pos = delete $self->{_link_pos};
1371		2196
1372	unless ($map) {	2197	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	2198	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	2199	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	2200	$map = cf::map::find $map;
1378		2201
1379	unless ($map) {	2202	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	2203	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	2204	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	2205	or die "FATAL: cannot load emergency map\n";
1383	}	2206	}
1384	}	2207	}
1385		2208
1386	($x, $y) = (-1, -1)	2209	($x, $y) = (-1, -1)
…		…
1389	# use -1 or undef as default coordinates, not 0, 0	2212	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	2213	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	2214	if $x <=0 && $y <= 0;
1392		2215
1393	$map->load;	2216	$map->load;
		2217	$map->load_diag;
1394		2218
		2219	return unless $self->contr->active;
1395	$self->activate_recursive;	2220	$self->activate_recursive;
		2221
		2222	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1396	$self->enter_map ($map, $x, $y);	2223	$self->enter_map ($map, $x, $y);
1397	}	2224	}
1398		2225
1399	=item $player_object->goto_map ($map, $x, $y)	2226	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1400		2227
1401	=cut	2228	Moves the player to the given map-path and coordinates by first freezing
		2229	her, loading and preparing them map, calling the provided $check callback
		2230	that has to return the map if sucecssful, and then unfreezes the player on
		2231	the new (success) or old (failed) map position.
1402		2232
		2233	=cut
		2234
		2235	our $GOTOGEN;
		2236
1403	sub cf::object::player::goto_map {	2237	sub cf::object::player::goto {
1404	my ($self, $path, $x, $y) = @_;	2238	my ($self, $path, $x, $y, $check) = @_;
		2239
		2240	# do generation counting so two concurrent goto's will be executed in-order
		2241	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1405		2242
1406	$self->enter_link;	2243	$self->enter_link;
1407		2244
1408	(Coro::async {	2245	(async {
1409	$path = new cf::path $path;	2246	my $map = eval {
1410
1411	my $map = cf::map::find_map $path->as_string;	2247	my $map = cf::map::find $path;
		2248
		2249	if ($map) {
1412	$map = $map->customise_for ($self) if $map;	2250	$map = $map->customise_for ($self);
		2251	$map = $check->($map) if $check && $map;
		2252	} else {
		2253	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2254	}
1413		2255
1414	warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	2256	$map
		2257	};
1416		2258
		2259	if ($@) {
		2260	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2261	LOG llevError | logBacktrace, Carp::longmess $@;
		2262	}
		2263
		2264	if ($gen == $self->{_goto_generation}) {
		2265	delete $self->{_goto_generation};
1417	$self->leave_link ($map, $x, $y);	2266	$self->leave_link ($map, $x, $y);
		2267	}
1418	})->prio (1);	2268	})->prio (1);
1419	}	2269	}
1420		2270
1421	=item $player_object->enter_exit ($exit_object)	2271	=item $player_object->enter_exit ($exit_object)
1422		2272
…		…
1424		2274
1425	sub parse_random_map_params {	2275	sub parse_random_map_params {
1426	my ($spec) = @_;	2276	my ($spec) = @_;
1427		2277
1428	my $rmp = { # defaults	2278	my $rmp = { # defaults
1429	xsize => 10,	2279	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	2280	ysize => (cf::rndm 15, 40),
		2281	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2282	#layout => string,
1431	};	2283	};
1432		2284
1433	for (split /\n/, $spec) {	2285	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	2286	my ($k, $v) = split /\s+/, $_, 2;
1435		2287
…		…
1439	$rmp	2291	$rmp
1440	}	2292	}
1441		2293
1442	sub prepare_random_map {	2294	sub prepare_random_map {
1443	my ($exit) = @_;	2295	my ($exit) = @_;
		2296
		2297	my $guard = cf::lock_acquire "exit_prepare:$exit";
1444		2298
1445	# all this does is basically replace the /! path by	2299	# all this does is basically replace the /! path by
1446	# a new random map path (?random/...) with a seed	2300	# a new random map path (?random/...) with a seed
1447	# that depends on the exit object	2301	# that depends on the exit object
1448		2302
1449	my $rmp = parse_random_map_params $exit->msg;	2303	my $rmp = parse_random_map_params $exit->msg;
1450		2304
1451	if ($exit->map) {	2305	if ($exit->map) {
1452	$rmp->{region} = $exit->map->region_name;	2306	$rmp->{region} = $exit->region->name;
1453	$rmp->{origin_map} = $exit->map->path;	2307	$rmp->{origin_map} = $exit->map->path;
1454	$rmp->{origin_x} = $exit->x;	2308	$rmp->{origin_x} = $exit->x;
1455	$rmp->{origin_y} = $exit->y;	2309	$rmp->{origin_y} = $exit->y;
1456	}	2310	}
1457		2311
1458	$rmp->{random_seed} ||= $exit->random_seed;	2312	$rmp->{random_seed} ||= $exit->random_seed;
1459		2313
1460	my $data = cf::to_json $rmp;	2314	my $data = cf::to_json $rmp;
1461	my $md5 = Digest::MD5::md5_hex $data;	2315	my $md5 = Digest::MD5::md5_hex $data;
		2316	my $meta = "$RANDOMDIR/$md5.meta";
1462		2317
1463	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2318	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1464	aio_write $fh, 0, (length $data), $data, 0;	2319	aio_write $fh, 0, (length $data), $data, 0;
		2320	undef $fh;
		2321	aio_rename "$meta~", $meta;
1465		2322
1466	$exit->slaying ("?random/$md5");	2323	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	2324	$exit->msg (undef);
1468	}	2325	}
1469	}	2326	}
…		…
1471	sub cf::object::player::enter_exit {	2328	sub cf::object::player::enter_exit {
1472	my ($self, $exit) = @_;	2329	my ($self, $exit) = @_;
1473		2330
1474	return unless $self->type == cf::PLAYER;	2331	return unless $self->type == cf::PLAYER;
1475		2332
		2333	if ($exit->slaying eq "/!") {
		2334	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2335	# the problem is that $exit might not survive long enough
		2336	# so it needs to be done right now, right here
		2337	cf::sync_job { prepare_random_map $exit };
		2338	}
		2339
		2340	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2341	my $hp = $exit->stats->hp;
		2342	my $sp = $exit->stats->sp;
		2343
1476	$self->enter_link;	2344	$self->enter_link;
1477		2345
1478	(Coro::async {	2346	(async {
		2347	$self->deactivate_recursive; # just to be sure
1479	unless (eval {	2348	unless (eval {
1480		2349	$self->goto ($slaying, $hp, $sp);
1481	prepare_random_map $exit
1482	if $exit->slaying eq "/!";
1483
1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1486		2350
1487	1;	2351	1;
1488	}) {	2352	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	2353	$self->message ("Something went wrong deep within the crossfire server. "
1490	. "I'll try to bring you back to the map you were before. "	2354	. "I'll try to bring you back to the map you were before. "
1491	. "Please report this to the dungeon master",	2355	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	2356	cf::NDI_UNIQUE | cf::NDI_RED);
1493		2357
1494	warn "ERROR in enter_exit: $@";	2358	warn "ERROR in enter_exit: $@";
1495	$self->leave_link;	2359	$self->leave_link;
1496	}	2360	}
1497	})->prio (1);	2361	})->prio (1);
…		…
1510		2374
1511	sub cf::client::send_drawinfo {	2375	sub cf::client::send_drawinfo {
1512	my ($self, $text, $flags) = @_;	2376	my ($self, $text, $flags) = @_;
1513		2377
1514	utf8::encode $text;	2378	utf8::encode $text;
1515	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2379	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1516	}	2380	}
1517		2381
		2382	=item $client->send_msg ($color, $type, $msg, [extra...])
		2383
		2384	Send a drawinfo or msg packet to the client, formatting the msg for the
		2385	client if neccessary. C<$type> should be a string identifying the type of
		2386	the message, with C<log> being the default. If C<$color> is negative, suppress
		2387	the message unless the client supports the msg packet.
		2388
		2389	=cut
		2390
		2391	sub cf::client::send_msg {
		2392	my ($self, $color, $type, $msg, @extra) = @_;
		2393
		2394	$msg = $self->pl->expand_cfpod ($msg);
		2395
		2396	if ($self->can_msg) {
		2397	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2398	} else {
		2399	# replace some tags by gcfclient-compatible ones
		2400	for ($msg) {
		2401	1 while
		2402	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2403	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2404	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2405	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2406	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2407	}
		2408
		2409	if ($color >= 0) {
		2410	if (0 && $msg =~ /\[/) {
		2411	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2412	} else {
		2413	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2414	$self->send_packet ("drawinfo $color $msg")
		2415	}
		2416	}
		2417	}
		2418	}
		2419
		2420	=item $client->ext_event ($type, %msg)
		2421
		2422	Sends an ext event to the client.
		2423
		2424	=cut
		2425
		2426	sub cf::client::ext_event($$%) {
		2427	my ($self, $type, %msg) = @_;
		2428
		2429	$msg{msgtype} = "event_$type";
		2430	$self->send_packet ("ext " . cf::to_json \%msg);
		2431	}
1518		2432
1519	=item $success = $client->query ($flags, "text", \&cb)	2433	=item $success = $client->query ($flags, "text", \&cb)
1520		2434
1521	Queues a query to the client, calling the given callback with	2435	Queues a query to the client, calling the given callback with
1522	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2436	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1523	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2437	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1524		2438
1525	Queries can fail, so check the return code. Or don't, as queries will become	2439	Queries can fail, so check the return code. Or don't, as queries will
1526	reliable at some point in the future.	2440	become reliable at some point in the future.
1527		2441
1528	=cut	2442	=cut
1529		2443
1530	sub cf::client::query {	2444	sub cf::client::query {
1531	my ($self, $flags, $text, $cb) = @_;	2445	my ($self, $flags, $text, $cb) = @_;
…		…
1539	utf8::encode $text;	2453	utf8::encode $text;
1540	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2454	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1541		2455
1542	$self->send_packet ($self->{query_queue}[0][0])	2456	$self->send_packet ($self->{query_queue}[0][0])
1543	if @{ $self->{query_queue} } == 1;	2457	if @{ $self->{query_queue} } == 1;
		2458
		2459	1
1544	}	2460	}
1545		2461
1546	cf::client->attach (	2462	cf::client->attach (
1547	on_reply => sub {	2463	on_reply => sub {
1548	my ($ns, $msg) = @_;	2464	my ($ns, $msg) = @_;
1549		2465
1550	# this weird shuffling is so that direct followup queries	2466	# this weird shuffling is so that direct followup queries
1551	# get handled first	2467	# get handled first
1552	my $queue = delete $ns->{query_queue};	2468	my $queue = delete $ns->{query_queue}
		2469	or return; # be conservative, not sure how that can happen, but we saw a crash here
1553		2470
1554	(shift @$queue)->[1]->($msg);	2471	(shift @$queue)->[1]->($msg);
		2472	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1555		2473
1556	push @{ $ns->{query_queue} }, @$queue;	2474	push @{ $ns->{query_queue} }, @$queue;
1557		2475
1558	if (@{ $ns->{query_queue} } == @$queue) {	2476	if (@{ $ns->{query_queue} } == @$queue) {
1559	if (@$queue) {	2477	if (@$queue) {
…		…
1561	} else {	2479	} else {
1562	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2480	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1563	}	2481	}
1564	}	2482	}
1565	},	2483	},
		2484	on_exticmd => sub {
		2485	my ($ns, $buf) = @_;
		2486
		2487	my $msg = eval { from_json $buf };
		2488
		2489	if (ref $msg) {
		2490	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2491	if (my %reply = $cb->($ns, $msg)) {
		2492	$reply{msgid} = $msg->{msgid};
		2493	$ns->send ("ext " . cf::to_json \%reply);
		2494	}
		2495	}
		2496	} else {
		2497	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2498	}
		2499
		2500	cf::override;
		2501	},
1566	);	2502	);
1567		2503
1568	=item $client->coro (\&cb)	2504	=item $client->async (\&cb)
1569		2505
1570	Create a new coroutine, running the specified callback. The coroutine will	2506	Create a new coroutine, running the specified callback. The coroutine will
1571	be automatically cancelled when the client gets destroyed (e.g. on logout,	2507	be automatically cancelled when the client gets destroyed (e.g. on logout,
1572	or loss of connection).	2508	or loss of connection).
1573		2509
1574	=cut	2510	=cut
1575		2511
1576	sub cf::client::coro {	2512	sub cf::client::async {
1577	my ($self, $cb) = @_;	2513	my ($self, $cb) = @_;
1578		2514
1579	my $coro; $coro = async {	2515	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		2516
1586	$coro->on_destroy (sub {	2517	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	2518	delete $self->{_coro}{$coro+0};
1588	});	2519	});
1589		2520
…		…
1622		2553
1623	# here we export the classes and methods available to script code	2554	# here we export the classes and methods available to script code
1624		2555
1625	=pod	2556	=pod
1626		2557
1627	The following fucntions and emthods are available within a safe environment:	2558	The following functions and methods are available within a safe environment:
1628		2559
1629	cf::object contr pay_amount pay_player map	2560	cf::object contr pay_amount pay_player map
1630	cf::object::player player	2561	cf::object::player player
1631	cf::player peaceful	2562	cf::player peaceful
1632	cf::map trigger	2563	cf::map trigger
…		…
1713	=back	2644	=back
1714		2645
1715	=cut	2646	=cut
1716		2647
1717	#############################################################################	2648	#############################################################################
		2649	# the server's init and main functions
1718		2650
1719	=head2 EXTENSION DATABASE SUPPORT	2651	sub load_facedata($) {
		2652	my ($path) = @_;
1720		2653
1721	Crossfire maintains a very simple database for extension use. It can	2654	warn "loading facedata from $path\n";
1722	currently store anything that can be serialised using Storable, which
1723	excludes objects.
1724		2655
1725	The parameter C<$family> should best start with the name of the extension	2656	my $facedata;
1726	using it, it should be unique.	2657	0 < aio_load $path, $facedata
		2658	or die "$path: $!";
1727		2659
1728	=over 4	2660	$facedata = Coro::Storable::thaw $facedata;
1729		2661
1730	=item $hashref = cf::db_get $family	2662	$facedata->{version} == 2
		2663	or cf::cleanup "$path: version mismatch, cannot proceed.";
1731		2664
1732	Return a hashref for use by the extension C<$family>, which can be
1733	modified. After modifications, you have to call C<cf::db_dirty> or
1734	C<cf::db_sync>.
1735
1736	=item $value = cf::db_get $family => $key
1737
1738	Returns a single value from the database
1739
1740	=item cf::db_put $family => $hashref
1741
1742	Stores the given family hashref into the database. Updates are delayed, if
1743	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1744
1745	=item cf::db_put $family => $key => $value
1746
1747	Stores the given C<$value> in the family hash. Updates are delayed, if you
1748	want the data to be synced to disk immediately, use C<cf::db_sync>.
1749
1750	=item cf::db_dirty
1751
1752	Marks the database as dirty, to be updated at a later time.
1753
1754	=item cf::db_sync
1755
1756	Immediately write the database to disk I<if it is dirty>.
1757
1758	=cut
1759
1760	our $DB;
1761
1762	{
1763	my $path = cf::localdir . "/database.pst";
1764
1765	sub db_load() {
1766	warn "loading database $path\n";#d# remove later
1767	$DB = stat $path ? Storable::retrieve $path : { };
1768	}	2665	{
		2666	my $faces = $facedata->{faceinfo};
1769		2667
1770	my $pid;	2668	while (my ($face, $info) = each %$faces) {
1771		2669	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1772	sub db_save() {	2670	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1773	warn "saving database $path\n";#d# remove later	2671	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1774	waitpid $pid, 0 if $pid;	2672	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1775	if (0 == ($pid = fork)) {	2673	Coro::cede;
1776	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;
1779	cf::_exit 0 if defined $pid;
1780	}
1781	}
1782
1783	my $dirty;
1784
1785	sub db_sync() {
1786	db_save if $dirty;
1787	undef $dirty;
1788	}
1789
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1791	db_sync;
1792	});
1793
1794	sub db_dirty() {
1795	$dirty = 1;
1796	$idle->start;
1797	}
1798
1799	sub db_get($;$) {
1800	@_ >= 2
1801	? $DB->{$_[0]}{$_[1]}
1802	: ($DB->{$_[0]} ||= { })
1803	}
1804
1805	sub db_put($$;$) {
1806	if (@_ >= 3) {
1807	$DB->{$_[0]}{$_[1]} = $_[2];
1808	} else {
1809	$DB->{$_[0]} = $_[1];
1810	}
1811	db_dirty;
1812	}
1813
1814	cf::global->attach (
1815	prio => 10000,
1816	on_cleanup => sub {
1817	db_sync;
1818	},	2674	}
1819	);
1820	}
1821		2675
1822	#############################################################################	2676	while (my ($face, $info) = each %$faces) {
1823	# the server's main()	2677	next unless $info->{smooth};
		2678	my $idx = cf::face::find $face
		2679	or next;
		2680	if (my $smooth = cf::face::find $info->{smooth}) {
		2681	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2682	} else {
		2683	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2684	}
		2685	Coro::cede;
		2686	}
		2687	}
		2688
		2689	{
		2690	my $anims = $facedata->{animinfo};
		2691
		2692	while (my ($anim, $info) = each %$anims) {
		2693	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2694	Coro::cede;
		2695	}
		2696
		2697	cf::anim::invalidate_all; # d'oh
		2698	}
		2699
		2700	1
		2701	}
		2702
		2703	sub reload_regions {
		2704	load_resource_file "$MAPDIR/regions"
		2705	or die "unable to load regions file\n";
		2706	}
		2707
		2708	sub reload_facedata {
		2709	load_facedata "$DATADIR/facedata"
		2710	or die "unable to load facedata\n";
		2711	}
		2712
		2713	sub reload_archetypes {
		2714	load_resource_file "$DATADIR/archetypes"
		2715	or die "unable to load archetypes\n";
		2716	}
		2717
		2718	sub reload_treasures {
		2719	load_resource_file "$DATADIR/treasures"
		2720	or die "unable to load treasurelists\n";
		2721	}
		2722
		2723	sub reload_resources {
		2724	warn "reloading resource files...\n";
		2725
		2726	reload_regions;
		2727	reload_facedata;
		2728	#reload_archetypes;#d#
		2729	reload_archetypes;
		2730	reload_treasures;
		2731
		2732	warn "finished reloading resource files\n";
		2733	}
		2734
		2735	sub init {
		2736	reload_resources;
		2737	}
1824		2738
1825	sub cfg_load {	2739	sub cfg_load {
1826	open my $fh, "<:utf8", cf::confdir . "/config"	2740	open my $fh, "<:utf8", "$CONFDIR/config"
1827	or return;	2741	or return;
1828		2742
1829	local $/;	2743	local $/;
1830	*CFG = YAML::Syck::Load <$fh>;	2744	*CFG = YAML::Syck::Load <$fh>;
		2745
		2746	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2747
		2748	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2749	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2750
		2751	if (exists $CFG{mlockall}) {
		2752	eval {
		2753	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2754	and die "WARNING: m(un)lockall failed: $!\n";
		2755	};
		2756	warn $@ if $@;
		2757	}
1831	}	2758	}
1832		2759
1833	sub main {	2760	sub main {
1834	# we must not ever block the main coroutine	2761	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	2762	local $Coro::idle = sub {
1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2763	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1837	(Coro::unblock_sub {	2764	(async {
1838	Event::one_event;	2765	Event::one_event;
1839	})->();	2766	})->prio (Coro::PRIO_MAX);
1840	};	2767	};
1841		2768
1842	cfg_load;	2769	cfg_load;
1843	db_load;	2770	db_init;
1844	load_extensions;	2771	load_extensions;
		2772
		2773	$TICK_WATCHER->start;
1845	Event::loop;	2774	Event::loop;
1846	}	2775	}
1847		2776
1848	#############################################################################	2777	#############################################################################
1849	# initialisation	2778	# initialisation and cleanup
1850		2779
		2780	# install some emergency cleanup handlers
		2781	BEGIN {
		2782	for my $signal (qw(INT HUP TERM)) {
		2783	Event->signal (
		2784	reentrant => 0,
		2785	data => WF_AUTOCANCEL,
		2786	signal => $signal,
		2787	prio => 0,
		2788	cb => sub {
		2789	cf::cleanup "SIG$signal";
		2790	},
		2791	);
		2792	}
		2793	}
		2794
		2795	sub write_runtime {
		2796	my $runtime = "$LOCALDIR/runtime";
		2797
		2798	# first touch the runtime file to show we are still running:
		2799	# the fsync below can take a very very long time.
		2800
		2801	IO::AIO::aio_utime $runtime, undef, undef;
		2802
		2803	my $guard = cf::lock_acquire "write_runtime";
		2804
		2805	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2806	or return;
		2807
		2808	my $value = $cf::RUNTIME + 90 + 10;
		2809	# 10 is the runtime save interval, for a monotonic clock
		2810	# 60 allows for the watchdog to kill the server.
		2811
		2812	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2813	and return;
		2814
		2815	# always fsync - this file is important
		2816	aio_fsync $fh
		2817	and return;
		2818
		2819	# touch it again to show we are up-to-date
		2820	aio_utime $fh, undef, undef;
		2821
		2822	close $fh
		2823	or return;
		2824
		2825	aio_rename "$runtime~", $runtime
		2826	and return;
		2827
		2828	warn "runtime file written.\n";
		2829
		2830	1
		2831	}
		2832
		2833	sub emergency_save() {
		2834	my $freeze_guard = cf::freeze_mainloop;
		2835
		2836	warn "enter emergency perl save\n";
		2837
		2838	cf::sync_job {
		2839	# use a peculiar iteration method to avoid tripping on perl
		2840	# refcount bugs in for. also avoids problems with players
		2841	# and maps saved/destroyed asynchronously.
		2842	warn "begin emergency player save\n";
		2843	for my $login (keys %cf::PLAYER) {
		2844	my $pl = $cf::PLAYER{$login} or next;
		2845	$pl->valid or next;
		2846	$pl->save;
		2847	}
		2848	warn "end emergency player save\n";
		2849
		2850	warn "begin emergency map save\n";
		2851	for my $path (keys %cf::MAP) {
		2852	my $map = $cf::MAP{$path} or next;
		2853	$map->valid or next;
		2854	$map->save;
		2855	}
		2856	warn "end emergency map save\n";
		2857
		2858	warn "begin emergency database checkpoint\n";
		2859	BDB::db_env_txn_checkpoint $DB_ENV;
		2860	warn "end emergency database checkpoint\n";
		2861	};
		2862
		2863	warn "leave emergency perl save\n";
		2864	}
		2865
		2866	sub post_cleanup {
		2867	my ($make_core) = @_;
		2868
		2869	warn Carp::longmess "post_cleanup backtrace"
		2870	if $make_core;
		2871	}
		2872
1851	sub reload() {	2873	sub do_reload_perl() {
1852	# can/must only be called in main	2874	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	2875	if ($Coro::current != $Coro::main) {
1854	warn "can only reload from main coroutine\n";	2876	warn "can only reload from main coroutine";
1855	return;	2877	return;
1856	}	2878	}
1857		2879
1858	warn "reloading...";	2880	warn "reloading...";
1859		2881
1860	local $FREEZE = 1;	2882	warn "entering sync_job";
		2883
		2884	cf::sync_job {
		2885	cf::write_runtime; # external watchdog should not bark
1861	cf::emergency_save;	2886	cf::emergency_save;
		2887	cf::write_runtime; # external watchdog should not bark
1862		2888
1863	eval {	2889	warn "syncing database to disk";
		2890	BDB::db_env_txn_checkpoint $DB_ENV;
		2891
1864	# if anything goes wrong in here, we should simply crash as we already saved	2892	# if anything goes wrong in here, we should simply crash as we already saved
1865		2893
1866	# cancel all watchers	2894	warn "cancelling all WF_AUTOCANCEL watchers";
1867	for (Event::all_watchers) {	2895	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;	2896	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}	2897	}
1870		2898
		2899	warn "flushing outstanding aio requests";
		2900	for (;;) {
		2901	BDB::flush;
		2902	IO::AIO::flush;
		2903	Coro::cede;
		2904	last unless IO::AIO::nreqs || BDB::nreqs;
		2905	warn "iterate...";
		2906	}
		2907
		2908	++$RELOAD;
		2909
1871	# cancel all extension coros	2910	warn "cancelling all extension coros";
1872	$_->cancel for values %EXT_CORO;	2911	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	2912	%EXT_CORO = ();
1874		2913
1875	# unload all extensions	2914	warn "removing commands";
1876	for (@exts) {	2915	%COMMAND = ();
		2916
		2917	warn "removing ext/exti commands";
		2918	%EXTCMD = ();
		2919	%EXTICMD = ();
		2920
		2921	warn "unloading/nuking all extensions";
		2922	for my $pkg (@EXTS) {
1877	warn "unloading <$_>";	2923	warn "... unloading $pkg";
1878	unload_extension $_;	2924
		2925	if (my $cb = $pkg->can ("unload")) {
		2926	eval {
		2927	$cb->($pkg);
		2928	1
		2929	} or warn "$pkg unloaded, but with errors: $@";
1879	}	2930	}
1880		2931
		2932	warn "... nuking $pkg";
		2933	Symbol::delete_package $pkg;
		2934	}
		2935
1881	# unload all modules loaded from $LIBDIR	2936	warn "unloading all perl modules loaded from $LIBDIR";
1882	while (my ($k, $v) = each %INC) {	2937	while (my ($k, $v) = each %INC) {
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1884		2939
1885	warn "removing <$k>";	2940	warn "... unloading $k";
1886	delete $INC{$k};	2941	delete $INC{$k};
1887		2942
1888	$k =~ s/\.pm$//;	2943	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;	2944	$k =~ s/\//::/g;
1890		2945
…		…
1893	}	2948	}
1894		2949
1895	Symbol::delete_package $k;	2950	Symbol::delete_package $k;
1896	}	2951	}
1897		2952
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	2953	warn "getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	2954	Symbol::delete_package "safe::$_"
1904	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2955	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1905		2956
1906	# remove register_script_function callbacks
1907	# TODO
1908
1909	# unload cf.pm "a bit"	2957	warn "unloading cf.pm \"a bit\"";
1910	delete $INC{"cf.pm"};	2958	delete $INC{"cf.pm"};
		2959	delete $INC{"cf/pod.pm"};
1911		2960
1912	# don't, removes xs symbols, too,	2961	# don't, removes xs symbols, too,
1913	# and global variables created in xs	2962	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	2963	#Symbol::delete_package __PACKAGE__;
1915		2964
1916	# reload cf.pm	2965	warn "unload completed, starting to reload now";
		2966
1917	warn "reloading cf.pm";	2967	warn "reloading cf.pm";
1918	require cf;	2968	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2969	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1920		2970
1921	# load config and database again	2971	warn "loading config and database again";
1922	cf::cfg_load;	2972	cf::cfg_load;
1923	cf::db_load;
1924		2973
1925	# load extensions
1926	warn "load extensions";	2974	warn "loading extensions";
1927	cf::load_extensions;	2975	cf::load_extensions;
1928		2976
1929	# reattach attachments to objects	2977	warn "reattaching attachments to objects/players";
1930	warn "reattach";	2978	_global_reattach; # objects, sockets
1931	_global_reattach;	2979	warn "reattaching attachments to maps";
1932	};	2980	reattach $_ for values %MAP;
		2981	warn "reattaching attachments to players";
		2982	reattach $_ for values %PLAYER;
1933		2983
1934	if ($@) {	2984	warn "leaving sync_job";
		2985
		2986	1
		2987	} or do {
1935	warn $@;	2988	warn $@;
1936	warn "error while reloading, exiting.";	2989	warn "error while reloading, exiting.";
1937	exit 1;	2990	exit 1;
1938	}	2991	};
1939		2992
1940	warn "reloaded successfully";	2993	warn "reloaded";
1941	};	2994	};
1942		2995
1943	#############################################################################	2996	our $RELOAD_WATCHER; # used only during reload
1944		2997
1945	unless ($LINK_MAP) {	2998	sub reload_perl() {
1946	$LINK_MAP = cf::map::new;	2999	# doing reload synchronously and two reloads happen back-to-back,
		3000	# coro crashes during coro_state_free->destroy here.
1947		3001
1948	$LINK_MAP->width (41);	3002	$RELOAD_WATCHER ||= Event->timer (
1949	$LINK_MAP->height (41);	3003	reentrant => 0,
1950	$LINK_MAP->alloc;
1951	$LINK_MAP->path ("{link}");
1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955	# dirty hack because... archetypes are not yet loaded
1956	Event->timer (
1957	after => 2,	3004	after => 0,
		3005	data => WF_AUTOCANCEL,
1958	cb => sub {	3006	cb => sub {
1959	$_[0]->w->cancel;	3007	do_reload_perl;
1960		3008	undef $RELOAD_WATCHER;
1961	# provide some exits "home"
1962	my $exit = cf::object::new "exit";
1963
1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968	$LINK_MAP->insert ($exit->clone, 19, 19);
1969	$LINK_MAP->insert ($exit->clone, 19, 20);
1970	$LINK_MAP->insert ($exit->clone, 19, 21);
1971	$LINK_MAP->insert ($exit->clone, 20, 19);
1972	$LINK_MAP->insert ($exit->clone, 20, 21);
1973	$LINK_MAP->insert ($exit->clone, 21, 19);
1974	$LINK_MAP->insert ($exit->clone, 21, 20);
1975	$LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977	$exit->destroy;
1978	});	3009	},
1979		3010	);
1980	$LINK_MAP->{deny_save} = 1;
1981	$LINK_MAP->{deny_reset} = 1;
1982
1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984	}	3011	}
1985
1986	register "<global>", __PACKAGE__;
1987		3012
1988	register_command "reload" => sub {	3013	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	3014	my ($who, $arg) = @_;
1990		3015
1991	if ($who->flag (FLAG_WIZ)) {	3016	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");
1993	reload;
1994	$who->message ("end of reload.");	3017	$who->message ("reloading server.");
		3018	async { reload_perl };
1995	}	3019	}
1996	};	3020	};
1997		3021
1998	unshift @INC, $LIBDIR;	3022	unshift @INC, $LIBDIR;
1999		3023
		3024	my $bug_warning = 0;
		3025
		3026	our @WAIT_FOR_TICK;
		3027	our @WAIT_FOR_TICK_BEGIN;
		3028
		3029	sub wait_for_tick {
		3030	return unless $TICK_WATCHER->is_active;
		3031	return if $Coro::current == $Coro::main;
		3032
		3033	my $signal = new Coro::Signal;
		3034	push @WAIT_FOR_TICK, $signal;
		3035	$signal->wait;
		3036	}
		3037
		3038	sub wait_for_tick_begin {
		3039	return unless $TICK_WATCHER->is_active;
		3040	return if $Coro::current == $Coro::main;
		3041
		3042	my $signal = new Coro::Signal;
		3043	push @WAIT_FOR_TICK_BEGIN, $signal;
		3044	$signal->wait;
		3045	}
		3046
		3047	my $min = 1e6;#d#
		3048	my $avg = 10;
2000	$TICK_WATCHER = Event->timer (	3049	$TICK_WATCHER = Event->timer (
2001	reentrant => 0,	3050	reentrant => 0,
		3051	parked => 1,
2002	prio => 0,	3052	prio => 0,
2003	at => $NEXT_TICK || $TICK,	3053	at => $NEXT_TICK || $TICK,
2004	data => WF_AUTOCANCEL,	3054	data => WF_AUTOCANCEL,
2005	cb => sub {	3055	cb => sub {
2006	unless ($FREEZE) {	3056	if ($Coro::current != $Coro::main) {
		3057	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3058	unless ++$bug_warning > 10;
		3059	return;
		3060	}
		3061
		3062	$NOW = $tick_start = Event::time;
		3063
2007	cf::server_tick; # one server iteration	3064	cf::server_tick; # one server iteration
2008	$RUNTIME += $TICK;	3065
		3066	0 && sync_job {#d#
		3067	for(1..10) {
		3068	my $t = Event::time;
		3069	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3070	or die;
		3071
		3072	$map->width (50);
		3073	$map->height (50);
		3074	$map->alloc;
		3075	$map->_load_objects ("/tmp/x.map", 1);
		3076	my $t = Event::time - $t;
		3077
		3078	#next unless $t < 0.0013;#d#
		3079	if ($t < $min) {
		3080	$min = $t;
		3081	}
		3082	$avg = $avg * 0.99 + $t * 0.01;
		3083	}
		3084	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3085	exit 0;
		3086	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2009	}	3087	};
2010		3088
		3089	$RUNTIME += $TICK;
2011	$NEXT_TICK += $TICK;	3090	$NEXT_TICK += $TICK;
2012		3091
		3092	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3093	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3094	Coro::async_pool {
		3095	write_runtime
		3096	or warn "ERROR: unable to write runtime file: $!";
		3097	};
		3098	}
		3099
		3100	# my $AFTER = Event::time;
		3101	# warn $AFTER - $NOW;#d#
		3102
		3103	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3104	$sig->send;
		3105	}
		3106	while (my $sig = shift @WAIT_FOR_TICK) {
		3107	$sig->send;
		3108	}
		3109
		3110	$NOW = Event::time;
		3111
2013	# if we are delayed by four ticks or more, skip them all	3112	# if we are delayed by four ticks or more, skip them all
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3113	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2015		3114
2016	$TICK_WATCHER->at ($NEXT_TICK);	3115	$TICK_WATCHER->at ($NEXT_TICK);
2017	$TICK_WATCHER->start;	3116	$TICK_WATCHER->start;
		3117
		3118	$LOAD = ($NOW - $tick_start) / $TICK;
		3119	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3120
		3121	_post_tick;
		3122
		3123
2018	},	3124	},
2019	);	3125	);
2020		3126
		3127	{
2021	IO::AIO::max_poll_time $TICK * 0.2;	3128	BDB::max_poll_time $TICK * 0.1;
2022		3129	$BDB_POLL_WATCHER = Event->io (
2023	Event->io (	3130	reentrant => 0,
2024	fd => IO::AIO::poll_fileno,	3131	fd => BDB::poll_fileno,
2025	poll => 'r',	3132	poll => 'r',
2026	prio => 5,	3133	prio => 0,
2027	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,
2029	);
2030
2031	Event->timer (
2032	data => WF_AUTOCANCEL,	3134	data => WF_AUTOCANCEL,
2033	after => 0,	3135	cb => \&BDB::poll_cb,
2034	interval => 10,	3136	);
2035	cb => sub {	3137	BDB::min_parallel 8;
2036	(Coro::unblock_sub {	3138
2037	write_runtime	3139	BDB::set_sync_prepare {
2038	or warn "ERROR: unable to write runtime file: $!";	3140	my $status;
		3141	my $current = $Coro::current;
		3142	(
		3143	sub {
		3144	$status = $!;
		3145	$current->ready; undef $current;
		3146	},
		3147	sub {
		3148	Coro::schedule while defined $current;
		3149	$! = $status;
		3150	},
		3151	)
		3152	};
		3153
		3154	unless ($DB_ENV) {
		3155	$DB_ENV = BDB::db_env_create;
		3156
		3157	cf::sync_job {
		3158	eval {
		3159	BDB::db_env_open
		3160	$DB_ENV,
		3161	$BDBDIR,
		3162	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3163	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3164	0666;
		3165
		3166	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3167
		3168	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3169	$DB_ENV->set_lk_detect;
		3170	};
		3171
		3172	cf::cleanup "db_env_open(db): $@" if $@;
2039	})->();	3173	};
2040	},	3174	}
2041	);	3175	}
		3176
		3177	{
		3178	IO::AIO::min_parallel 8;
		3179
		3180	undef $Coro::AIO::WATCHER;
		3181	IO::AIO::max_poll_time $TICK * 0.1;
		3182	$AIO_POLL_WATCHER = Event->io (
		3183	reentrant => 0,
		3184	data => WF_AUTOCANCEL,
		3185	fd => IO::AIO::poll_fileno,
		3186	poll => 'r',
		3187	prio => 6,
		3188	cb => \&IO::AIO::poll_cb,
		3189	);
		3190	}
		3191
		3192	my $_log_backtrace;
		3193
		3194	sub _log_backtrace {
		3195	my ($msg, @addr) = @_;
		3196
		3197	$msg =~ s/\n//;
		3198
		3199	# limit the # of concurrent backtraces
		3200	if ($_log_backtrace < 2) {
		3201	++$_log_backtrace;
		3202	async {
		3203	my @bt = fork_call {
		3204	@addr = map { sprintf "%x", $_ } @addr;
		3205	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3206	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3207	or die "addr2line: $!";
		3208
		3209	my @funcs;
		3210	my @res = <$fh>;
		3211	chomp for @res;
		3212	while (@res) {
		3213	my ($func, $line) = splice @res, 0, 2, ();
		3214	push @funcs, "[$func] $line";
		3215	}
		3216
		3217	@funcs
		3218	};
		3219
		3220	LOG llevInfo, "[ABT] $msg\n";
		3221	LOG llevInfo, "[ABT] $_\n" for @bt;
		3222	--$_log_backtrace;
		3223	};
		3224	} else {
		3225	LOG llevInfo, "[ABT] $msg\n";
		3226	LOG llevInfo, "[ABT] [suppressed]\n";
		3227	}
		3228	}
		3229
		3230	# load additional modules
		3231	use cf::pod;
		3232
		3233	END { cf::emergency_save }
2042		3234
2043	1	3235	1
2044		3236

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