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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.113 by root, Mon Jan 1 15:32:40 2007 UTC vs.
Revision 1.374 by root, Wed Sep 19 22:07:16 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 3.64 ();
		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;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	97	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	98
56	our %EXT_CORO;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
57		105
58	binmode STDOUT;	106	binmode STDOUT;
59	binmode STDERR;	107	binmode STDERR;
60		108
61	# read virtual server time, if available	109	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
66	}	114	}
67		115
68	mkdir cf::localdir;	116	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		118
74	# a special map that is always available	119	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		120
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	121	sub cf::map::normalise;
78		122
79	#############################################################################	123	#############################################################################
80		124
81	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
82		126
…		…
89	=item $cf::RUNTIME	133	=item $cf::RUNTIME
90		134
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	136	every server tick.
93		137
94	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		141
96	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
98		146
99	=item $cf::NOW	147	=item $cf::NOW
100		148
101	The time of the last (current) server tick.	149	The time of the last (current) server tick.
102		150
103	=item $cf::TICK	151	=item $cf::TICK
104		152
105	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
106		164
107	=item %cf::CFG	165	=item %cf::CFG
108		166
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
111		181
112	=back	182	=back
113		183
114	=cut	184	=cut
115		185
116	BEGIN {	186	BEGIN {
117	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	188	my $msg = join "", @_;
119	utf8::encode $msg;
120		189
121	$msg .= "\n"	190	$msg .= "\n"
122	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
123		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
124	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
125	};	196	};
126	}	197	}
127		198
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		206
135	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	208	# within the Safe compartment.
137	for my $pkg (qw(	209	for my $pkg (qw(
138	cf::global cf::attachable	210	cf::global cf::attachable
…		…
147		219
148	$Event::DIED = sub {	220	$Event::DIED = sub {
149	warn "error in event callback: @_";	221	warn "error in event callback: @_";
150	};	222	};
151		223
152	my %ext_pkg;	224	#############################################################################
153	my @exts;
154	my @hook;
155		225
156	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
157		227
158	=over 4	228	=over 4
159		229
160	=cut	230	=item dumpval $ref
161		231
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
163		252
164	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
165		254
166	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
167		256
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
176		258
177	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
178		260
179	=cut	261	=cut
180		262
181	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
183	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
		266	sub from_json ($) { $json_coder->decode ($_[0]) }
		267
		268	=item cf::lock_wait $string
		269
		270	Wait until the given lock is available. See cf::lock_acquire.
		271
		272	=item my $lock = cf::lock_acquire $string
		273
		274	Wait until the given lock is available and then acquires it and returns
		275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		276	for example when the coroutine gets canceled), the lock is automatically
		277	returned.
		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
		282	Lock names should begin with a unique identifier (for example, cf::map::find
		283	uses map_find and cf::map::load uses map_load).
		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
		289	=cut
		290
		291	our %LOCK;
		292	our %LOCKER;#d#
		293
		294	sub lock_wait($) {
		295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
		301
		302	# wait for lock, if any
		303	while ($LOCK{$key}) {
		304	push @{ $LOCK{$key} }, $Coro::current;
		305	Coro::schedule;
		306	}
184	}	307	}
		308
		309	sub lock_acquire($) {
		310	my ($key) = @_;
		311
		312	# wait, to be sure we are not locked
		313	lock_wait $key;
		314
		315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
		317
		318	Coro::guard {
		319	delete $LOCKER{$key};#d#
		320	# wake up all waiters, to be on the safe side
		321	$_->ready for @{ delete $LOCK{$key} };
		322	}
		323	}
		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
		331	sub freeze_mainloop {
		332	return unless $TICK_WATCHER->is_active;
		333
		334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
		337	$TICK_WATCHER->stop;
		338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
		399	=item cf::async { BLOCK }
		400
		401	Currently the same as Coro::async_pool, meaning you cannot use
		402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		403	thing you are allowed to do is call C<prio> on it.
		404
		405	=cut
		406
		407	BEGIN { *async = \&Coro::async_pool }
185		408
186	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
187		410
188	The design of crossfire+ requires that the main coro ($Coro::main) is	411	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	412	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.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
191		415
192	If it must be done, put the blocking parts into C<sync_job>. This will run	416	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	417	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	418	server will be frozen during this time, so the block should either finish
195	fast or be very important.	419	fast or be very important.
…		…
198		422
199	sub sync_job(&) {	423	sub sync_job(&) {
200	my ($job) = @_;	424	my ($job) = @_;
201		425
202	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
203	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
205		431
206	# TODO: use suspend/resume instead	432	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	433	# (but this is cancel-safe)
208	local $FREEZE = 1;	434	my $freeze_guard = freeze_mainloop;
209		435
210	my $busy = 1;	436	my $busy = 1;
211	my @res;	437	my @res;
212		438
213	(Coro::async {	439	(async {
		440	$Coro::current->desc ("sync job coro");
214	@res = eval { $job->() };	441	@res = eval { $job->() };
215	warn $@ if $@;	442	warn $@ if $@;
216	undef $busy;	443	undef $busy;
217	})->prio (Coro::PRIO_MAX);	444	})->prio (Coro::PRIO_MAX);
218		445
219	while ($busy) {	446	while ($busy) {
220	Coro::cede_notself;	447	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	448	}
		449
		450	$time = Event::time - $time;
		451
		452	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		453	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		454
		455	$tick_start += $time; # do not account sync jobs to server load
223		456
224	wantarray ? @res : $res[0]	457	wantarray ? @res : $res[0]
225	} else {	458	} else {
226	# we are in another coroutine, how wonderful, everything just works	459	# we are in another coroutine, how wonderful, everything just works
227		460
228	$job->()	461	$job->()
229	}	462	}
230	}	463	}
231		464
232	=item $coro = cf::coro { BLOCK }	465	=item $coro = cf::async_ext { BLOCK }
233		466
234	Creates and returns a new coro. This coro is automcatially being canceled	467	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	468	extension calling this is being unloaded.
236		469
237	=cut	470	=cut
238		471
239	sub coro(&) {	472	sub async_ext(&) {
240	my $cb = shift;	473	my $cb = shift;
241		474
242	my $coro; $coro = async {	475	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		476
249	$coro->on_destroy (sub {	477	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	478	delete $EXT_CORO{$coro+0};
251	});	479	});
252	$EXT_CORO{$coro+0} = $coro;	480	$EXT_CORO{$coro+0} = $coro;
253		481
254	$coro	482	$coro
255	}	483	}
256		484
257	sub write_runtime {	485	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		486
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	487	Executes the given code block with the given arguments in a seperate
261	or return;	488	process, returning the results. Everything must be serialisable with
		489	Coro::Storable. May, of course, block. Note that the executed sub may
		490	never block itself or use any form of Event handling.
262		491
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	492	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		493
267	aio_fsync $fh	494	sub fork_call(&@) {
268	and return;	495	my ($cb, @args) = @_;
269		496
270	close $fh	497	# we seemingly have to make a local copy of the whole thing,
271	or return;	498	# otherwise perl prematurely frees the stuff :/
		499	# TODO: investigate and fix (likely this will be rather laborious)
272		500
273	aio_rename "$runtime~", $runtime	501	my @res = Coro::Util::fork_eval {
274	and return;	502	reset_signals;
		503	&$cb
		504	}, @args;
275		505
		506	wantarray ? @res : $res[-1]
		507	}
		508
		509	=item $value = cf::db_get $family => $key
		510
		511	Returns a single value from the environment database.
		512
		513	=item cf::db_put $family => $key => $value
		514
		515	Stores the given C<$value> in the family. It can currently store binary
		516	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		517
		518	=item $db = cf::db_table "name"
		519
		520	Create and/or open a new database table. The string must not be "db" and must be unique
		521	within each server.
		522
		523	=cut
		524
		525	sub db_table($) {
		526	my ($name) = @_;
		527	my $db = BDB::db_create $DB_ENV;
		528
		529	eval {
		530	$db->set_flags (BDB::CHKSUM);
		531
		532	utf8::encode $name;
		533	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		534	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		535	cf::cleanup "db_open(db): $!" if $!;
		536	};
		537	cf::cleanup "db_open(db): $@" if $@;
		538
		539	$db
		540	}
		541
		542	our $DB;
		543
		544	sub db_init {
		545	cf::sync_job {
		546	$DB ||= db_table "db";
		547	};
		548	}
		549
		550	sub db_get($$) {
		551	my $key = "$_[0]/$_[1]";
		552
		553	cf::sync_job {
		554	BDB::db_get $DB, undef, $key, my $data;
		555
		556	$! ? ()
		557	: $data
276	1	558	}
		559	}
		560
		561	sub db_put($$$) {
		562	BDB::dbreq_pri 4;
		563	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		564	}
		565
		566	=item cf::cache $id => [$paths...], $processversion => $process
		567
		568	Generic caching function that returns the value of the resource $id,
		569	caching and regenerating as required.
		570
		571	This function can block.
		572
		573	=cut
		574
		575	sub cache {
		576	my ($id, $src, $processversion, $process) = @_;
		577
		578	my $meta =
		579	join "\x00",
		580	$processversion,
		581	map {
		582	aio_stat $_
		583	and Carp::croak "$_: $!";
		584
		585	($_, (stat _)[7,9])
		586	} @$src;
		587
		588	my $dbmeta = db_get cache => "$id/meta";
		589	if ($dbmeta ne $meta) {
		590	# changed, we may need to process
		591
		592	my @data;
		593	my $md5;
		594
		595	for (0 .. $#$src) {
		596	0 <= aio_load $src->[$_], $data[$_]
		597	or Carp::croak "$src->[$_]: $!";
		598	}
		599
		600	# if processing is expensive, check
		601	# checksum first
		602	if (1) {
		603	$md5 =
		604	join "\x00",
		605	$processversion,
		606	map {
		607	cf::cede_to_tick;
		608	($src->[$_], Digest::MD5::md5_hex $data[$_])
		609	} 0.. $#$src;
		610
		611
		612	my $dbmd5 = db_get cache => "$id/md5";
		613	if ($dbmd5 eq $md5) {
		614	db_put cache => "$id/meta", $meta;
		615
		616	return db_get cache => "$id/data";
		617	}
		618	}
		619
		620	my $t1 = Time::HiRes::time;
		621	my $data = $process->(\@data);
		622	my $t2 = Time::HiRes::time;
		623
		624	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		625
		626	db_put cache => "$id/data", $data;
		627	db_put cache => "$id/md5" , $md5;
		628	db_put cache => "$id/meta", $meta;
		629
		630	return $data;
		631	}
		632
		633	db_get cache => "$id/data"
		634	}
		635
		636	=item cf::datalog type => key => value, ...
		637
		638	Log a datalog packet of the given type with the given key-value pairs.
		639
		640	=cut
		641
		642	sub datalog($@) {
		643	my ($type, %kv) = @_;
		644	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	645	}
278		646
279	=back	647	=back
280		648
281	=cut	649	=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		650
393	#############################################################################	651	#############################################################################
394		652
395	=head2 ATTACHABLE OBJECTS	653	=head2 ATTACHABLE OBJECTS
396		654
…		…
398	attach callbacks/event handlers (a collection of which is called an "attachment")	656	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	657	to it. All such attachable objects support the following methods.
400		658
401	In the following description, CLASS can be any of C<global>, C<object>	659	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	660	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	661	Crossfire TRT).
404		662
405	=over 4	663	=over 4
406		664
407	=item $attachable->attach ($attachment, key => $value...)	665	=item $attachable->attach ($attachment, key => $value...)
408		666
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	780	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	781	our @CB_MAP = ();
524		782
525	my %attachment;	783	my %attachment;
526		784
		785	sub cf::attachable::thawer_merge {
		786	# simply override everything except _meta
		787	local $_[0]{_meta};
		788	%{$_[0]} = %{$_[1]};
		789	}
		790
527	sub _attach_cb($$$$) {	791	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	792	my ($registry, $event, $prio, $cb) = @_;
529		793
530	use sort 'stable';	794	use sort 'stable';
531		795
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	829	$registry = $CB_TYPE[$object_type] ||= [];
566		830
567	} elsif ($type eq "subtype") {	831	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	832	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	833	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	834	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		835
572	} elsif ($type eq "package") {	836	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	837	my $pkg = shift @arg;
574		838
575	while (my ($name, $id) = each %cb_id) {	839	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	868	_attach $registry, $klass, @attach;
605	}	869	}
606		870
607	$obj->{$name} = \%arg;	871	$obj->{$name} = \%arg;
608	} else {	872	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	873	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	874	}
611		875
612	$obj->{_attachment}{$name} = undef;	876	$obj->{_attachment}{$name} = undef;
613	}	877	}
614		878
…		…
616	if (ref $_[0]) {	880	if (ref $_[0]) {
617	_object_attach @_;	881	_object_attach @_;
618	} else {	882	} else {
619	_attach shift->_attach_registry, @_;	883	_attach shift->_attach_registry, @_;
620	}	884	}
		885	_recalc_want;
621	};	886	};
622		887
623	# all those should be optimised	888	# all those should be optimised
624	sub cf::attachable::detach {	889	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	890	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	893	delete $obj->{_attachment}{$name};
629	reattach ($obj);	894	reattach ($obj);
630	} else {	895	} else {
631	Carp::croak "cannot, currently, detach class attachments";	896	Carp::croak "cannot, currently, detach class attachments";
632	}	897	}
		898	_recalc_want;
633	};	899	};
634		900
635	sub cf::attachable::attached {	901	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	902	my ($obj, $name) = @_;
637		903
…		…
652	";	918	";
653	die if $@;	919	die if $@;
654	}	920	}
655		921
656	our $override;	922	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	923	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		924
659	sub override {	925	sub override {
660	$override = 1;	926	$override = 1;
661	@invoke_results = ();	927	@INVOKE_RESULTS = (@_);
662	}	928	}
663		929
664	sub do_invoke {	930	sub do_invoke {
665	my $event = shift;	931	my $event = shift;
666	my $callbacks = shift;	932	my $callbacks = shift;
667		933
668	@invoke_results = ();	934	@INVOKE_RESULTS = ();
669		935
670	local $override;	936	local $override;
671		937
672	for (@$callbacks) {	938	for (@$callbacks) {
673	eval { &{$_->[1]} };	939	eval { &{$_->[1]} };
…		…
690		956
691	Generate an object-specific event with the given arguments.	957	Generate an object-specific event with the given arguments.
692		958
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	959	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	960	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	961	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		962
697	=back	963	=back
698		964
699	=cut	965	=cut
700		966
701	#############################################################################	967	#############################################################################
702	# object support	968	# object support
		969	#
		970
		971	sub _can_merge {
		972	my ($ob1, $ob2) = @_;
		973
		974	local $Storable::canonical = 1;
		975	my $fob1 = Storable::freeze $ob1;
		976	my $fob2 = Storable::freeze $ob2;
		977
		978	$fob1 eq $fob2
		979	}
703		980
704	sub reattach {	981	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	982	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	983	my ($obj) = @_;
		984
		985	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		986
708	my $registry = $obj->registry;	987	my $registry = $obj->registry;
709		988
710	@$registry = ();	989	@$registry = ();
711		990
…		…
752	sub object_freezer_save {	1031	sub object_freezer_save {
753	my ($filename, $rdata, $objs) = @_;	1032	my ($filename, $rdata, $objs) = @_;
754		1033
755	sync_job {	1034	sync_job {
756	if (length $$rdata) {	1035	if (length $$rdata) {
		1036	utf8::decode (my $decname = $filename);
757	warn sprintf "saving %s (%d,%d)\n",	1037	warn sprintf "saving %s (%d,%d)\n",
758	$filename, length $$rdata, scalar @$objs;	1038	$decname, length $$rdata, scalar @$objs;
759		1039
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1040	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	1041	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1042	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	1043	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	1044	close $fh;
765		1045
766	if (@$objs) {	1046	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1047	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	1048	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	1049	my $data = Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	1050	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	1051	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	1052	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	1053	aio_rename "$filename.pst~", "$filename.pst";
774	}	1054	}
775	} else {	1055	} else {
776	aio_unlink "$filename.pst";	1056	aio_unlink "$filename.pst";
…		…
782	}	1062	}
783	} else {	1063	} else {
784	aio_unlink $filename;	1064	aio_unlink $filename;
785	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
786	}	1066	}
787	}	1067	};
788	}	1068	}
789		1069
790	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
792		1072
…		…
804	or return;	1084	or return;
805		1085
806	unless (aio_stat "$filename.pst") {	1086	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	1087	(aio_load "$filename.pst", $av) >= 0
808	or return;	1088	or return;
		1089
809	$av = eval { (Storable::thaw $av)->{objs} };	1090	$av = eval { (Storable::thaw $av)->{objs} };
810	}	1091	}
811		1092
		1093	utf8::decode (my $decname = $filename);
		1094	warn sprintf "loading %s (%d,%d)\n",
		1095	$decname, length $data, scalar @{$av || []};
		1096
812	return ($data, $av);	1097	($data, $av)
813	}	1098	}
		1099
		1100	=head2 COMMAND CALLBACKS
		1101
		1102	=over 4
		1103
		1104	=cut
814		1105
815	#############################################################################	1106	#############################################################################
816	# command handling &c	1107	# command handling &c
817		1108
818	=item cf::register_command $name => \&callback($ob,$args);	1109	=item cf::register_command $name => \&callback($ob,$args);
…		…
831	push @{ $COMMAND{$name} }, [$caller, $cb];	1122	push @{ $COMMAND{$name} }, [$caller, $cb];
832	}	1123	}
833		1124
834	=item cf::register_extcmd $name => \&callback($pl,$packet);	1125	=item cf::register_extcmd $name => \&callback($pl,$packet);
835		1126
836	Register a callbackf ro execution when the client sends an extcmd packet.	1127	Register a callback for execution when the client sends an (synchronous)
		1128	extcmd packet. Ext commands will be processed in the order they are
		1129	received by the server, like other user commands. The first argument is
		1130	the logged-in player. Ext commands can only be processed after a player
		1131	has logged in successfully.
837		1132
838	If the callback returns something, it is sent back as if reply was being	1133	If the callback returns something, it is sent back as if reply was being
839	called.	1134	called.
840		1135
		1136	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1137
		1138	Register a callback for execution when the client sends an (asynchronous)
		1139	exticmd packet. Exti commands are processed by the server as soon as they
		1140	are received, i.e. out of order w.r.t. other commands. The first argument
		1141	is a client socket. Exti commands can be received anytime, even before
		1142	log-in.
		1143
		1144	If the callback returns something, it is sent back as if reply was being
		1145	called.
		1146
841	=cut	1147	=cut
842		1148
843	sub register_extcmd {	1149	sub register_extcmd {
844	my ($name, $cb) = @_;	1150	my ($name, $cb) = @_;
845		1151
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	1152	$EXTCMD{$name} = $cb;
		1153	}
		1154
		1155	sub register_exticmd {
		1156	my ($name, $cb) = @_;
		1157
		1158	$EXTICMD{$name} = $cb;
850	}	1159	}
851		1160
852	cf::player->attach (	1161	cf::player->attach (
853	on_command => sub {	1162	on_command => sub {
854	my ($pl, $name, $params) = @_;	1163	my ($pl, $name, $params) = @_;
…		…
863	cf::override;	1172	cf::override;
864	},	1173	},
865	on_extcmd => sub {	1174	on_extcmd => sub {
866	my ($pl, $buf) = @_;	1175	my ($pl, $buf) = @_;
867		1176
868	my $msg = eval { from_json $buf };	1177	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
869		1178
870	if (ref $msg) {	1179	if (ref $msg) {
		1180	my ($type, $reply, @payload) =
		1181	"ARRAY" eq ref $msg
		1182	? @$msg
		1183	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1184
		1185	my @reply;
		1186
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1187	if (my $cb = $EXTCMD{$type}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	1188	@reply = $cb->($pl, @payload);
873	$pl->ext_reply ($msg->{msgid}, %reply);
874	}
875	}	1189	}
		1190
		1191	$pl->ext_reply ($reply, @reply)
		1192	if $reply;
		1193
876	} else {	1194	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1195	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
878	}	1196	}
879		1197
880	cf::override;	1198	cf::override;
881	},	1199	},
882	);	1200	);
883		1201
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	1202	sub load_extensions {
		1203	cf::sync_job {
		1204	my %todo;
		1205
		1206	for my $path (<$LIBDIR/*.ext>) {
		1207	next unless -r $path;
		1208
		1209	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1210	my $base = $1;
		1211	my $pkg = $1;
		1212	$pkg =~ s/[^[:word:]]/_/g;
		1213	$pkg = "ext::$pkg";
		1214
		1215	open my $fh, "<:utf8", $path
		1216	or die "$path: $!";
		1217
		1218	my $source = do { local $/; <$fh> };
		1219
		1220	my %ext = (
		1221	path => $path,
		1222	base => $base,
		1223	pkg => $pkg,
		1224	);
		1225
		1226	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1227	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1228
		1229	$ext{source} =
		1230	"package $pkg; use strict; use utf8;\n"
		1231	. "#line 1 \"$path\"\n{\n"
		1232	. $source
		1233	. "\n};\n1";
		1234
		1235	$todo{$base} = \%ext;
		1236	}
		1237
		1238	my %done;
		1239	while (%todo) {
		1240	my $progress;
		1241
		1242	while (my ($k, $v) = each %todo) {
		1243	for (split /,\s*/, $v->{meta}{depends}) {
		1244	goto skip
		1245	unless exists $done{$_};
		1246	}
		1247
		1248	warn "... loading '$k' into '$v->{pkg}'\n";
		1249
		1250	unless (eval $v->{source}) {
		1251	my $msg = $@ ? "$v->{path}: $@\n"
		1252	: "$v->{base}: extension inactive.\n";
		1253
		1254	if (exists $v->{meta}{mandatory}) {
		1255	warn $msg;
		1256	warn "mandatory extension failed to load, exiting.\n";
		1257	exit 1;
		1258	}
		1259
		1260	warn $msg;
		1261	}
		1262
		1263	$done{$k} = delete $todo{$k};
		1264	push @EXTS, $v->{pkg};
		1265	$progress = 1;
		1266	}
		1267
		1268	skip:
		1269	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1270	unless $progress;
		1271	}
		1272	};
		1273	}
		1274
		1275	#############################################################################
		1276
		1277	=back
		1278
		1279	=head2 CORE EXTENSIONS
		1280
		1281	Functions and methods that extend core crossfire objects.
		1282
		1283	=cut
		1284
		1285	package cf::player;
		1286
		1287	use Coro::AIO;
		1288
		1289	=head3 cf::player
		1290
		1291	=over 4
		1292
		1293	=item cf::player::num_playing
		1294
		1295	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1296
		1297	=cut
		1298
		1299	sub num_playing {
		1300	scalar grep
		1301	$_->ob->map
		1302	&& !$_->hidden
		1303	&& !$_->ob->flag (cf::FLAG_WIZ),
		1304	cf::player::list
		1305	}
		1306
		1307	=item cf::player::find $login
		1308
		1309	Returns the given player object, loading it if necessary (might block).
		1310
		1311	=cut
		1312
		1313	sub playerdir($) {
		1314	"$PLAYERDIR/"
		1315	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1316	}
		1317
		1318	sub path($) {
		1319	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1320
		1321	(playerdir $login) . "/playerdata"
		1322	}
		1323
		1324	sub find_active($) {
		1325	$cf::PLAYER{$_[0]}
		1326	and $cf::PLAYER{$_[0]}->active
		1327	and $cf::PLAYER{$_[0]}
		1328	}
		1329
		1330	sub exists($) {
		1331	my ($login) = @_;
		1332
		1333	$cf::PLAYER{$login}
		1334	or cf::sync_job { !aio_stat path $login }
		1335	}
		1336
		1337	sub find($) {
		1338	return $cf::PLAYER{$_[0]} || do {
		1339	my $login = $_[0];
		1340
		1341	my $guard = cf::lock_acquire "user_find:$login";
		1342
		1343	$cf::PLAYER{$_[0]} || do {
		1344	# rename old playerfiles to new ones
		1345	#TODO: remove when no longer required
		1346	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1347	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1348	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1349	aio_unlink +(playerdir $login) . "/$login.pl";
		1350
		1351	my $f = new_from_file cf::object::thawer path $login
		1352	or return;
		1353
		1354	my $pl = cf::player::load_pl $f
		1355	or return;
		1356	local $cf::PLAYER_LOADING{$login} = $pl;
		1357	$f->resolve_delayed_derefs;
		1358	$cf::PLAYER{$login} = $pl
		1359	}
		1360	}
		1361	}
		1362
		1363	sub save($) {
		1364	my ($pl) = @_;
		1365
		1366	return if $pl->{deny_save};
		1367
		1368	my $path = path $pl;
		1369	my $guard = cf::lock_acquire "user_save:$path";
		1370
		1371	return if $pl->{deny_save};
		1372
		1373	aio_mkdir playerdir $pl, 0770;
		1374	$pl->{last_save} = $cf::RUNTIME;
		1375
		1376	$pl->save_pl ($path);
		1377	cf::cede_to_tick;
		1378	}
		1379
		1380	sub new($) {
		1381	my ($login) = @_;
		1382
		1383	my $self = create;
		1384
		1385	$self->ob->name ($login);
		1386	$self->{deny_save} = 1;
		1387
		1388	$cf::PLAYER{$login} = $self;
		1389
		1390	$self
		1391	}
		1392
		1393	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1394
		1395	=cut
		1396
		1397	sub send_msg {
		1398	my $ns = shift->ns
		1399	or return;
		1400	$ns->send_msg (@_);
		1401	}
		1402
		1403	=item $pl->quit_character
		1404
		1405	Nukes the player without looking back. If logged in, the connection will
		1406	be destroyed. May block for a long time.
		1407
		1408	=cut
		1409
		1410	sub quit_character {
		1411	my ($pl) = @_;
		1412
		1413	my $name = $pl->ob->name;
		1414
		1415	$pl->{deny_save} = 1;
		1416	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1417
		1418	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1419	$pl->deactivate;
		1420	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1421	$pl->ns->destroy if $pl->ns;
		1422
		1423	my $path = playerdir $pl;
		1424	my $temp = "$path~$cf::RUNTIME~deleting~";
		1425	aio_rename $path, $temp;
		1426	delete $cf::PLAYER{$pl->ob->name};
		1427	$pl->destroy;
		1428
		1429	my $prefix = qr<^~\Q$name\E/>;
		1430
		1431	# nuke player maps
		1432	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1433
		1434	IO::AIO::aio_rmtree $temp;
		1435	}
		1436
		1437	=item $pl->kick
		1438
		1439	Kicks a player out of the game. This destroys the connection.
		1440
		1441	=cut
		1442
		1443	sub kick {
		1444	my ($pl, $kicker) = @_;
		1445
		1446	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1447	$pl->killer ("kicked");
		1448	$pl->ns->destroy;
		1449	}
		1450
		1451	=item cf::player::list_logins
		1452
		1453	Returns am arrayref of all valid playernames in the system, can take a
		1454	while and may block, so not sync_job-capable, ever.
		1455
		1456	=cut
		1457
		1458	sub list_logins {
		1459	my $dirs = aio_readdir $PLAYERDIR
		1460	or return [];
		1461
		1462	my @logins;
		1463
		1464	for my $login (@$dirs) {
		1465	my $path = path $login;
		1466
		1467	# a .pst is a dead give-away for a valid player
		1468	unless (-e "$path.pst") {
		1469	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1470	aio_read $fh, 0, 512, my $buf, 0 or next;
		1471	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1472	}
		1473
		1474	utf8::decode $login;
		1475	push @logins, $login;
		1476	}
		1477
		1478	\@logins
		1479	}
		1480
		1481	=item $player->maps
		1482
		1483	Returns an arrayref of map paths that are private for this
		1484	player. May block.
		1485
		1486	=cut
		1487
		1488	sub maps($) {
		1489	my ($pl) = @_;
		1490
		1491	$pl = ref $pl ? $pl->ob->name : $pl;
		1492
		1493	my $files = aio_readdir playerdir $pl
		1494	or return;
		1495
		1496	my @paths;
		1497
		1498	for (@$files) {
		1499	utf8::decode $_;
		1500	next if /\.(?:pl|pst)$/;
		1501	next unless /^$PATH_SEP/o;
		1502
		1503	push @paths, cf::map::normalise "~$pl/$_";
		1504	}
		1505
		1506	\@paths
		1507	}
		1508
		1509	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1510
		1511	Expand crossfire pod fragments into protocol xml.
		1512
		1513	=cut
		1514
		1515	sub expand_cfpod {
		1516	((my $self), (local $_)) = @_;
		1517
		1518	# escape & and <
		1519	s/&/&amp;/g;
		1520	s/(?<![BIUGHT])</&lt;/g;
		1521
		1522	# this is buggy, it needs to properly take care of nested <'s
		1523
		1524	1 while
		1525	# replace B<>, I<>, U<> etc.
		1526	s/B<([^\>]*)>/<b>$1<\/b>/
		1527	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1528	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1529	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1530	# replace G<male|female> tags
		1531	|| s{G<([^>|]*)\|([^>]*)>}{
		1532	$self->gender ? $2 : $1
		1533	}ge
		1534	# replace H<hint text>
		1535	|| s{H<([^\>]*)>}
		1536	{
		1537	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1538	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1539	"")
		1540	[$self->{hintmode}]
		1541	}ge;
		1542
		1543	# create single paragraphs (very hackish)
		1544	s/(?<=\S)\n(?=\w)/ /g;
		1545
		1546	# compress some whitespace
		1547	s/\s+\n/\n/g; # ws line-ends
		1548	s/\n\n+/\n/g; # double lines
		1549	s/^\n+//; # beginning lines
		1550	s/\n+$//; # ending lines
		1551
		1552	$_
		1553	}
		1554
		1555	sub hintmode {
		1556	$_[0]{hintmode} = $_[1] if @_ > 1;
		1557	$_[0]{hintmode}
		1558	}
		1559
		1560	=item $player->ext_reply ($msgid, @msg)
		1561
		1562	Sends an ext reply to the player.
		1563
		1564	=cut
		1565
		1566	sub ext_reply($$@) {
		1567	my ($self, $id, @msg) = @_;
		1568
		1569	$self->ns->ext_reply ($id, @msg)
		1570	}
		1571
		1572	=item $player->ext_msg ($type, @msg)
		1573
		1574	Sends an ext event to the client.
		1575
		1576	=cut
		1577
		1578	sub ext_msg($$@) {
		1579	my ($self, $type, @msg) = @_;
		1580
		1581	$self->ns->ext_msg ($type, @msg);
		1582	}
		1583
		1584	=head3 cf::region
		1585
		1586	=over 4
		1587
		1588	=cut
		1589
		1590	package cf::region;
		1591
		1592	=item cf::region::find_by_path $path
		1593
		1594	Tries to decuce the likely region for a map knowing only its path.
		1595
		1596	=cut
		1597
		1598	sub find_by_path($) {
891	my ($path) = @_;	1599	my ($path) = @_;
892		1600
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1601	my ($match, $specificity);
894	my $base = $1;
895	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";
898		1602
899	warn "loading '$path' into '$pkg'\n";	1603	for my $region (list) {
900		1604	if ($region->{match} && $path =~ $region->{match}) {
901	open my $fh, "<:utf8", $path	1605	($match, $specificity) = ($region, $region->specificity)
902	or die "$path: $!";	1606	if $region->specificity > $specificity;
903		1607	}
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	# }	1608	}
933		1609
934	# remove commands	1610	$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	}	1611	}
1040		1612
1041	=back	1613	=back
1042
1043		1614
1044	=head3 cf::map	1615	=head3 cf::map
1045		1616
1046	=over 4	1617	=over 4
1047		1618
…		…
1050	package cf::map;	1621	package cf::map;
1051		1622
1052	use Fcntl;	1623	use Fcntl;
1053	use Coro::AIO;	1624	use Coro::AIO;
1054		1625
		1626	use overload
		1627	'""' => \&as_string,
		1628	fallback => 1;
		1629
1055	our $MAX_RESET = 7200;	1630	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1631	our $DEFAULT_RESET = 3000;
1057		1632
1058	sub generate_random_map {	1633	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1634	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1635	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1636	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1637	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1638	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1639	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1640	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1641	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1642	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1643	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1644	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1645	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1646	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1647	(cf::region::find $rmp->{region}), $rmp->{custom}
		1648	)
		1649	}
		1650
		1651	=item cf::map->register ($regex, $prio)
		1652
		1653	Register a handler for the map path matching the given regex at the
		1654	givne priority (higher is better, built-in handlers have priority 0, the
		1655	default).
		1656
		1657	=cut
		1658
		1659	sub register {
		1660	my (undef, $regex, $prio) = @_;
		1661	my $pkg = caller;
		1662
		1663	no strict;
		1664	push @{"$pkg\::ISA"}, __PACKAGE__;
		1665
		1666	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1667	}
		1668
		1669	# also paths starting with '/'
		1670	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1671
		1672	sub thawer_merge {
		1673	my ($self, $merge) = @_;
		1674
		1675	# we have to keep some variables in memory intact
		1676	local $self->{path};
		1677	local $self->{load_path};
		1678
		1679	$self->SUPER::thawer_merge ($merge);
		1680	}
		1681
		1682	sub normalise {
		1683	my ($path, $base) = @_;
		1684
		1685	$path = "$path"; # make sure its a string
		1686
		1687	$path =~ s/\.map$//;
		1688
		1689	# map plan:
		1690	#
		1691	# /! non-realised random map exit (special hack!)
		1692	# {... are special paths that are not being touched
		1693	# ?xxx/... are special absolute paths
		1694	# ?random/... random maps
		1695	# /... normal maps
		1696	# ~user/... per-player map of a specific user
		1697
		1698	$path =~ s/$PATH_SEP/\//go;
		1699
		1700	# treat it as relative path if it starts with
		1701	# something that looks reasonable
		1702	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1703	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1704
		1705	$base =~ s{[^/]+/?$}{};
		1706	$path = "$base/$path";
		1707	}
		1708
		1709	for ($path) {
		1710	redo if s{//}{/};
		1711	redo if s{/\.?/}{/};
		1712	redo if s{/[^/]+/\.\./}{/};
		1713	}
		1714
		1715	$path
		1716	}
		1717
		1718	sub new_from_path {
		1719	my (undef, $path, $base) = @_;
		1720
		1721	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1722
		1723	$path = normalise $path, $base;
		1724
		1725	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1726	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1727	my $self = bless cf::map::new, $pkg;
		1728	$self->{path} = $path; $self->path ($path);
		1729	$self->init; # pass $1 etc.
		1730	return $self;
		1731	}
		1732	}
		1733
		1734	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1735	()
		1736	}
		1737
		1738	sub init {
		1739	my ($self) = @_;
		1740
		1741	$self
		1742	}
		1743
		1744	sub as_string {
		1745	my ($self) = @_;
		1746
		1747	"$self->{path}"
		1748	}
		1749
		1750	# the displayed name, this is a one way mapping
		1751	sub visible_name {
		1752	&as_string
		1753	}
		1754
		1755	# the original (read-only) location
		1756	sub load_path {
		1757	my ($self) = @_;
		1758
		1759	"$MAPDIR/$self->{path}.map"
		1760	}
		1761
		1762	# the temporary/swap location
		1763	sub save_path {
		1764	my ($self) = @_;
		1765
		1766	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1767	"$TMPDIR/$path.map"
		1768	}
		1769
		1770	# the unique path, undef == no special unique path
		1771	sub uniq_path {
		1772	my ($self) = @_;
		1773
		1774	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1775	"$UNIQUEDIR/$path"
1075	}	1776	}
1076		1777
1077	# and all this just because we cannot iterate over	1778	# and all this just because we cannot iterate over
1078	# all maps in C++...	1779	# all maps in C++...
1079	sub change_all_map_light {	1780	sub change_all_map_light {
1080	my ($change) = @_;	1781	my ($change) = @_;
1081		1782
1082	$_->change_map_light ($change) for values %cf::MAP;	1783	$_->change_map_light ($change)
		1784	for grep $_->outdoor, values %cf::MAP;
1083	}	1785	}
1084		1786
		1787	sub decay_objects {
		1788	my ($self) = @_;
		1789
		1790	return if $self->{deny_reset};
		1791
		1792	$self->do_decay_objects;
		1793	}
		1794
		1795	sub unlink_save {
		1796	my ($self) = @_;
		1797
		1798	utf8::encode (my $save = $self->save_path);
		1799	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1800	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1801	}
		1802
1085	sub try_load_header($) {	1803	sub load_header_from($) {
1086	my ($path) = @_;	1804	my ($self, $path) = @_;
1087		1805
1088	utf8::encode $path;	1806	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1807	my $f = new_from_file cf::object::thawer $path
1090	or return;	1808	or return;
1091		1809
1092	my $map = cf::map::new	1810	$self->_load_header ($f)
1093	or return;	1811	or return;
1094		1812
1095	$map->load_header ($path)	1813	local $MAP_LOADING{$self->{path}} = $self;
		1814	$f->resolve_delayed_derefs;
		1815
		1816	$self->{load_path} = $path;
		1817
		1818	1
		1819	}
		1820
		1821	sub load_header_orig {
		1822	my ($self) = @_;
		1823
		1824	$self->load_header_from ($self->load_path)
		1825	}
		1826
		1827	sub load_header_temp {
		1828	my ($self) = @_;
		1829
		1830	$self->load_header_from ($self->save_path)
		1831	}
		1832
		1833	sub prepare_temp {
		1834	my ($self) = @_;
		1835
		1836	$self->last_access ((delete $self->{last_access})
		1837	|| $cf::RUNTIME); #d#
		1838	# safety
		1839	$self->{instantiate_time} = $cf::RUNTIME
		1840	if $self->{instantiate_time} > $cf::RUNTIME;
		1841	}
		1842
		1843	sub prepare_orig {
		1844	my ($self) = @_;
		1845
		1846	$self->{load_original} = 1;
		1847	$self->{instantiate_time} = $cf::RUNTIME;
		1848	$self->last_access ($cf::RUNTIME);
		1849	$self->instantiate;
		1850	}
		1851
		1852	sub load_header {
		1853	my ($self) = @_;
		1854
		1855	if ($self->load_header_temp) {
		1856	$self->prepare_temp;
		1857	} else {
		1858	$self->load_header_orig
1096	or return;	1859	or return;
		1860	$self->prepare_orig;
		1861	}
1097		1862
1098	$map->{load_path} = $path;	1863	$self->{deny_reset} = 1
		1864	if $self->no_reset;
1099		1865
1100	$map	1866	$self->default_region (cf::region::find_by_path $self->{path})
1101	}	1867	unless $self->default_region;
1102		1868
		1869	1
		1870	}
		1871
		1872	sub find;
1103	sub find_map {	1873	sub find {
1104	my ($path, $origin) = @_;	1874	my ($path, $origin) = @_;
1105		1875
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1876	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1877
		1878	cf::lock_wait "map_data:$path";#d#remove
		1879	cf::lock_wait "map_find:$path";
		1880
1111	$cf::MAP{$key} || do {	1881	$cf::MAP{$path} || do {
1112	# do it the slow way	1882	my $guard1 = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1883	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1114		1884
1115	if ($map) {	1885	my $map = new_from_path cf::map $path
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;	1886	or return;
1127		1887
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);	1888	$map->{last_save} = $cf::RUNTIME;
1139		1889
1140	if ($map->should_reset) {	1890	$map->load_header
		1891	or return;
		1892
		1893	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1894	# doing this can freeze the server in a sync job, obviously
		1895	#$cf::WAIT_FOR_TICK->wait;
		1896	undef $guard1;
		1897	undef $guard2;
1141	$map->reset;	1898	$map->reset;
1142	$map = find_map $path;	1899	return find $path;
1143	}	1900	}
1144		1901
1145	$cf::MAP{$key} = $map	1902	$cf::MAP{$path} = $map
1146	}	1903	}
1147	}	1904	}
		1905
		1906	sub pre_load { }
		1907	sub post_load { }
1148		1908
1149	sub load {	1909	sub load {
1150	my ($self) = @_;	1910	my ($self) = @_;
1151		1911
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1912	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		1913
1156	my $path = $self->{path};	1914	my $path = $self->{path};
1157		1915
		1916	{
		1917	my $guard = cf::lock_acquire "map_data:$path";
		1918
		1919	return unless $self->valid;
		1920	return unless $self->in_memory == cf::MAP_SWAPPED;
		1921
		1922	$self->in_memory (cf::MAP_LOADING);
		1923
1158	$self->alloc;	1924	$self->alloc;
1159	$self->load_objects ($self->{load_path}, 1)	1925
		1926	$self->pre_load;
		1927	cf::cede_to_tick;
		1928
		1929	my $f = new_from_file cf::object::thawer $self->{load_path};
		1930	$f->skip_block;
		1931	$self->_load_objects ($f)
1160	or return;	1932	or return;
1161		1933
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1934	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1935	if delete $self->{load_original};
1164		1936
1165	if (my $uniq = $path->uniq_path) {	1937	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1938	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1939	unless (aio_stat $uniq) {
		1940	if (my $f = new_from_file cf::object::thawer $uniq) {
1168	$self->clear_unique_items;	1941	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1942	$self->_load_objects ($f);
		1943	$f->resolve_delayed_derefs;
		1944	}
1170	}	1945	}
1171	}	1946	}
1172		1947
		1948	$f->resolve_delayed_derefs;
		1949
		1950	cf::cede_to_tick;
1173	# now do the right thing for maps	1951	# now do the right thing for maps
1174	$self->link_multipart_objects;	1952	$self->link_multipart_objects;
1175
1176	if ($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)	1953	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1954	unless $self->difficulty;
		1955	cf::cede_to_tick;
		1956
		1957	unless ($self->{deny_activate}) {
		1958	$self->decay_objects;
		1959	$self->fix_auto_apply;
		1960	$self->update_buttons;
		1961	cf::cede_to_tick;
		1962	$self->set_darkness_map;
		1963	cf::cede_to_tick;
1186	$self->activate;	1964	$self->activate;
1187	}	1965	}
1188		1966
		1967	$self->{last_save} = $cf::RUNTIME;
		1968	$self->last_access ($cf::RUNTIME);
		1969
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1970	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1971	}
1191		1972
1192	sub load_map_sync {	1973	$self->post_load;
		1974	}
		1975
		1976	sub customise_for {
		1977	my ($self, $ob) = @_;
		1978
		1979	return find "~" . $ob->name . "/" . $self->{path}
		1980	if $self->per_player;
		1981
		1982	# return find "?party/" . $ob->name . "/" . $self->{path}
		1983	# if $self->per_party;
		1984
		1985	$self
		1986	}
		1987
		1988	# find and load all maps in the 3x3 area around a map
		1989	sub load_neighbours {
		1990	my ($map) = @_;
		1991
		1992	my @neigh; # diagonal neighbours
		1993
		1994	for (0 .. 3) {
		1995	my $neigh = $map->tile_path ($_)
		1996	or next;
		1997	$neigh = find $neigh, $map
		1998	or next;
		1999	$neigh->load;
		2000
		2001	push @neigh,
		2002	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2003	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2004	}
		2005
		2006	for (grep defined $_->[0], @neigh) {
		2007	my ($path, $origin) = @$_;
		2008	my $neigh = find $path, $origin
		2009	or next;
		2010	$neigh->load;
		2011	}
		2012	}
		2013
		2014	sub find_sync {
1193	my ($path, $origin) = @_;	2015	my ($path, $origin) = @_;
1194		2016
1195	#warn "load_map_sync<$path, $origin>\n";#d#	2017	cf::sync_job { find $path, $origin }
		2018	}
1196		2019
1197	cf::sync_job {	2020	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	2021	my ($map) = @_;
1199	or return;	2022
1200	$map->load;	2023	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1201	$map	2024	if $Coro::current == $Coro::main;
		2025
		2026	cf::sync_job { $map->load };
		2027	}
		2028
		2029	our %MAP_PREFETCH;
		2030	our $MAP_PREFETCHER = undef;
		2031
		2032	sub find_async {
		2033	my ($path, $origin, $load) = @_;
		2034
		2035	$path = normalise $path, $origin && $origin->{path};
		2036
		2037	if (my $map = $cf::MAP{$path}) {
		2038	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2039	}
		2040
		2041	$MAP_PREFETCH{$path} |= $load;
		2042
		2043	$MAP_PREFETCHER ||= cf::async {
		2044	$Coro::current->{desc} = "map prefetcher";
		2045
		2046	while (%MAP_PREFETCH) {
		2047	while (my ($k, $v) = each %MAP_PREFETCH) {
		2048	if (my $map = find $k) {
		2049	$map->load if $v;
		2050	}
		2051
		2052	delete $MAP_PREFETCH{$k};
		2053	}
		2054	}
		2055	undef $MAP_PREFETCHER;
1202	}	2056	};
		2057	$MAP_PREFETCHER->prio (6);
		2058
		2059	()
1203	}	2060	}
1204		2061
1205	sub save {	2062	sub save {
1206	my ($self) = @_;	2063	my ($self) = @_;
1207		2064
1208	my $save = $self->{path}->save_path; utf8::encode $save;	2065	my $lock = cf::lock_acquire "map_data:$self->{path}";
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		2066
1211	$self->{last_save} = $cf::RUNTIME;	2067	$self->{last_save} = $cf::RUNTIME;
1212		2068
1213	return unless $self->dirty;	2069	return unless $self->dirty;
1214		2070
		2071	my $save = $self->save_path; utf8::encode $save;
		2072	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2073
1215	$self->{load_path} = $save;	2074	$self->{load_path} = $save;
1216		2075
1217	return if $self->{deny_save};	2076	return if $self->{deny_save};
1218		2077
		2078	local $self->{last_access} = $self->last_access;#d#
		2079
		2080	cf::async {
		2081	$Coro::current->{desc} = "map player save";
		2082	$_->contr->save for $self->players;
		2083	};
		2084
1219	if ($uniq) {	2085	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2086	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	2087	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	2088	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2089	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	2090	}
1225	}	2091	}
1226		2092
1227	sub swap_out {	2093	sub swap_out {
1228	my ($self) = @_;	2094	my ($self) = @_;
		2095
		2096	# save first because save cedes
		2097	$self->save;
		2098
		2099	my $lock = cf::lock_acquire "map_data:$self->{path}";
1229		2100
1230	return if $self->players;	2101	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	2102	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	2103	return if $self->{deny_save};
1233		2104
		2105	$self->in_memory (cf::MAP_SWAPPED);
		2106
1234	$self->save;	2107	$self->deactivate;
		2108	$_->clear_links_to ($self) for values %cf::MAP;
1235	$self->clear;	2109	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);
1237	}	2110	}
1238		2111
1239	sub reset_at {	2112	sub reset_at {
1240	my ($self) = @_;	2113	my ($self) = @_;
1241		2114
1242	# TODO: safety, remove and allow resettable per-player maps	2115	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	2116	return 1e99 if $self->{deny_reset};
1245		2117
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2118	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	2119	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		2120
1250	$time + $to	2121	$time + $to
1251	}	2122	}
1252		2123
1253	sub should_reset {	2124	sub should_reset {
1254	my ($self) = @_;	2125	my ($self) = @_;
1255		2126
1256	$self->reset_at <= $cf::RUNTIME	2127	$self->reset_at <= $cf::RUNTIME
1257	}	2128	}
1258		2129
1259	sub unlink_save {
1260	my ($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 rename {
1268	my ($self, $new_path) = @_;
1269
1270	$self->unlink_save;
1271
1272	delete $cf::MAP{$self->path};
1273	$self->{path} = new cf::path $new_path;
1274	$self->path ($self->{path}->path);
1275	$cf::MAP{$self->path} = $self;
1276
1277	$self->save;
1278	}
1279
1280	sub reset {	2130	sub reset {
1281	my ($self) = @_;	2131	my ($self) = @_;
1282		2132
		2133	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2134
1283	return if $self->players;	2135	return if $self->players;
1284	return if $self->{path}{user_rel};#d#
1285		2136
1286	warn "resetting map ", $self->path;#d#	2137	warn "resetting map ", $self->path;
		2138
		2139	$self->in_memory (cf::MAP_SWAPPED);
		2140
		2141	# need to save uniques path
		2142	unless ($self->{deny_save}) {
		2143	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2144
		2145	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2146	if $uniq;
		2147	}
1287		2148
1288	delete $cf::MAP{$self->path};	2149	delete $cf::MAP{$self->path};
1289		2150
		2151	$self->deactivate;
1290	$_->clear_links_to ($self) for values %cf::MAP;	2152	$_->clear_links_to ($self) for values %cf::MAP;
		2153	$self->clear;
1291		2154
1292	$self->unlink_save;	2155	$self->unlink_save;
1293	$self->destroy;	2156	$self->destroy;
1294	}	2157	}
1295		2158
1296	sub customise_for {	2159	my $nuke_counter = "aaaa";
1297	my ($map, $ob) = @_;
1298		2160
1299	if ($map->per_player) {	2161	sub nuke {
1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2162	my ($self) = @_;
		2163
1301	}	2164	{
		2165	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2166
1303	$map	2167	delete $cf::MAP{$self->path};
1304	}
1305		2168
1306	sub emergency_save {	2169	$self->unlink_save;
1307	local $cf::FREEZE = 1;
1308		2170
1309	warn "enter emergency map save\n";	2171	bless $self, "cf::map";
		2172	delete $self->{deny_reset};
		2173	$self->{deny_save} = 1;
		2174	$self->reset_timeout (1);
		2175	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1310		2176
1311	cf::sync_job {	2177	$cf::MAP{$self->path} = $self;
1312	warn "begin emergency map save\n";
1313	$_->save for values %cf::MAP;
1314	};	2178	}
1315		2179
1316	warn "end emergency map save\n";	2180	$self->reset; # polite request, might not happen
		2181	}
		2182
		2183	=item $maps = cf::map::tmp_maps
		2184
		2185	Returns an arrayref with all map paths of currently instantiated and saved
		2186	maps. May block.
		2187
		2188	=cut
		2189
		2190	sub tmp_maps() {
		2191	[
		2192	map {
		2193	utf8::decode $_;
		2194	/\.map$/
		2195	? normalise $_
		2196	: ()
		2197	} @{ aio_readdir $TMPDIR or [] }
		2198	]
		2199	}
		2200
		2201	=item $maps = cf::map::random_maps
		2202
		2203	Returns an arrayref with all map paths of currently instantiated and saved
		2204	random maps. May block.
		2205
		2206	=cut
		2207
		2208	sub random_maps() {
		2209	[
		2210	map {
		2211	utf8::decode $_;
		2212	/\.map$/
		2213	? normalise "?random/$_"
		2214	: ()
		2215	} @{ aio_readdir $RANDOMDIR or [] }
		2216	]
		2217	}
		2218
		2219	=item cf::map::unique_maps
		2220
		2221	Returns an arrayref of paths of all shared maps that have
		2222	instantiated unique items. May block.
		2223
		2224	=cut
		2225
		2226	sub unique_maps() {
		2227	[
		2228	map {
		2229	utf8::decode $_;
		2230	/\.map$/
		2231	? normalise $_
		2232	: ()
		2233	} @{ aio_readdir $UNIQUEDIR or [] }
		2234	]
1317	}	2235	}
1318		2236
1319	package cf;	2237	package cf;
1320		2238
1321	=back	2239	=back
1322		2240
		2241	=head3 cf::object
		2242
		2243	=cut
		2244
		2245	package cf::object;
		2246
		2247	=over 4
		2248
		2249	=item $ob->inv_recursive
		2250
		2251	Returns the inventory of the object _and_ their inventories, recursively.
		2252
		2253	=cut
		2254
		2255	sub inv_recursive_;
		2256	sub inv_recursive_ {
		2257	map { $_, inv_recursive_ $_->inv } @_
		2258	}
		2259
		2260	sub inv_recursive {
		2261	inv_recursive_ inv $_[0]
		2262	}
		2263
		2264	=item $ref = $ob->ref
		2265
		2266	creates and returns a persistent reference to an objetc that can be stored as a string.
		2267
		2268	=item $ob = cf::object::deref ($refstring)
		2269
		2270	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2271	even if the object actually exists. May block.
		2272
		2273	=cut
		2274
		2275	sub deref {
		2276	my ($ref) = @_;
		2277
		2278	# temporary compatibility#TODO#remove
		2279	$ref =~ s{^<}{player/<};
		2280
		2281	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2282	my ($uuid, $name) = ($1, $2);
		2283	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2284	or return;
		2285	$pl->ob->uuid eq $uuid
		2286	or return;
		2287
		2288	$pl->ob
		2289	} else {
		2290	warn "$ref: cannot resolve object reference\n";
		2291	undef
		2292	}
		2293	}
		2294
		2295	package cf;
		2296
		2297	=back
1323		2298
1324	=head3 cf::object::player	2299	=head3 cf::object::player
1325		2300
1326	=over 4	2301	=over 4
1327		2302
…		…
1341		2316
1342	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2317	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1343		2318
1344	if ($self->{record_replies}) {	2319	if ($self->{record_replies}) {
1345	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2320	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2321
1346	} else {	2322	} else {
		2323	my $pl = $self->contr;
		2324
		2325	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2326	my $dialog = $pl->{npc_dialog};
		2327	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2328
		2329	} else {
1347	$msg = $npc->name . " says: $msg" if $npc;	2330	$msg = $npc->name . " says: $msg" if $npc;
1348	$self->message ($msg, $flags);	2331	$self->message ($msg, $flags);
		2332	}
1349	}	2333	}
		2334	}
		2335
		2336	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2337
		2338	=cut
		2339
		2340	sub cf::object::send_msg {
		2341	my $pl = shift->contr
		2342	or return;
		2343	$pl->send_msg (@_);
1350	}	2344	}
1351		2345
1352	=item $player_object->may ("access")	2346	=item $player_object->may ("access")
1353		2347
1354	Returns wether the given player is authorized to access resource "access"	2348	Returns wether the given player is authorized to access resource "access"
…		…
1363	(ref $cf::CFG{"may_$access"}	2357	(ref $cf::CFG{"may_$access"}
1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2358	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365	: $cf::CFG{"may_$access"})	2359	: $cf::CFG{"may_$access"})
1366	}	2360	}
1367		2361
		2362	=item $player_object->enter_link
		2363
		2364	Freezes the player and moves him/her to a special map (C<{link}>).
		2365
		2366	The player should be reasonably safe there for short amounts of time. You
		2367	I<MUST> call C<leave_link> as soon as possible, though.
		2368
		2369	Will never block.
		2370
		2371	=item $player_object->leave_link ($map, $x, $y)
		2372
		2373	Moves the player out of the special C<{link}> map onto the specified
		2374	map. If the map is not valid (or omitted), the player will be moved back
		2375	to the location he/she was before the call to C<enter_link>, or, if that
		2376	fails, to the emergency map position.
		2377
		2378	Might block.
		2379
		2380	=cut
		2381
		2382	sub link_map {
		2383	unless ($LINK_MAP) {
		2384	$LINK_MAP = cf::map::find "{link}"
		2385	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2386	$LINK_MAP->load;
		2387	}
		2388
		2389	$LINK_MAP
		2390	}
		2391
1368	sub cf::object::player::enter_link {	2392	sub cf::object::player::enter_link {
1369	my ($self) = @_;	2393	my ($self) = @_;
1370		2394
1371	return if $self->map == $LINK_MAP;
1372
1373	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1374	if $self->map;
1375
1376	$self->enter_map ($LINK_MAP, 20, 20);
1377	$self->deactivate_recursive;	2395	$self->deactivate_recursive;
		2396
		2397	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2398
		2399	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2400	if $self->map && $self->map->{path} ne "{link}";
		2401
		2402	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1378	}	2403	}
1379		2404
1380	sub cf::object::player::leave_link {	2405	sub cf::object::player::leave_link {
1381	my ($self, $map, $x, $y) = @_;	2406	my ($self, $map, $x, $y) = @_;
1382		2407
		2408	return unless $self->contr->active;
		2409
1383	my $link_pos = delete $self->{_link_pos};	2410	my $link_pos = delete $self->{_link_pos};
1384		2411
1385	unless ($map) {	2412	unless ($map) {
1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388	# restore original map position	2413	# restore original map position
1389	($map, $x, $y) = @{ $link_pos || [] };	2414	($map, $x, $y) = @{ $link_pos || [] };
1390	$map = cf::map::find_map $map;	2415	$map = cf::map::find $map;
1391		2416
1392	unless ($map) {	2417	unless ($map) {
1393	($map, $x, $y) = @$EMERGENCY_POSITION;	2418	($map, $x, $y) = @$EMERGENCY_POSITION;
1394	$map = cf::map::find_map $map	2419	$map = cf::map::find $map
1395	or die "FATAL: cannot load emergency map\n";	2420	or die "FATAL: cannot load emergency map\n";
1396	}	2421	}
1397	}	2422	}
1398		2423
1399	($x, $y) = (-1, -1)	2424	($x, $y) = (-1, -1)
…		…
1402	# use -1 or undef as default coordinates, not 0, 0	2427	# use -1 or undef as default coordinates, not 0, 0
1403	($x, $y) = ($map->enter_x, $map->enter_y)	2428	($x, $y) = ($map->enter_x, $map->enter_y)
1404	if $x <=0 && $y <= 0;	2429	if $x <=0 && $y <= 0;
1405		2430
1406	$map->load;	2431	$map->load;
		2432	$map->load_neighbours;
1407		2433
		2434	return unless $self->contr->active;
1408	$self->activate_recursive;	2435	$self->activate_recursive;
		2436
		2437	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1409	$self->enter_map ($map, $x, $y);	2438	$self->enter_map ($map, $x, $y);
1410	}	2439	}
1411		2440
1412	=item $player_object->goto_map ($map, $x, $y)	2441	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1413		2442
1414	=cut	2443	Moves the player to the given map-path and coordinates by first freezing
		2444	her, loading and preparing them map, calling the provided $check callback
		2445	that has to return the map if sucecssful, and then unfreezes the player on
		2446	the new (success) or old (failed) map position. In either case, $done will
		2447	be called at the end of this process.
1415		2448
		2449	=cut
		2450
		2451	our $GOTOGEN;
		2452
1416	sub cf::object::player::goto_map {	2453	sub cf::object::player::goto {
1417	my ($self, $path, $x, $y) = @_;	2454	my ($self, $path, $x, $y, $check, $done) = @_;
		2455
		2456	# do generation counting so two concurrent goto's will be executed in-order
		2457	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1418		2458
1419	$self->enter_link;	2459	$self->enter_link;
1420		2460
1421	(Coro::async {	2461	(async {
1422	$path = new cf::path $path;	2462	$Coro::current->{desc} = "player::goto $path $x $y";
1423		2463
1424	my $map = cf::map::find_map $path->as_string;	2464	# *tag paths override both path and x|y
		2465	if ($path =~ /^\*(.*)$/) {
		2466	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2467	my $ob = $obs[rand @obs];
		2468
		2469	# see if we actually can go there
		2470	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2471	$ob = $obs[rand @obs];
		2472	} else {
		2473	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2474	}
		2475	# else put us there anyways for now #d#
		2476
		2477	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2478	} else {
		2479	($path, $x, $y) = (undef, undef, undef);
		2480	}
		2481	}
		2482
		2483	my $map = eval {
		2484	my $map = defined $path ? cf::map::find $path : undef;
		2485
		2486	if ($map) {
1425	$map = $map->customise_for ($self) if $map;	2487	$map = $map->customise_for ($self);
		2488	$map = $check->($map) if $check && $map;
		2489	} else {
		2490	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2491	}
1426		2492
1427	warn "entering ", $map->path, " at ($x, $y)\n"
1428	if $map;	2493	$map
		2494	};
1429		2495
		2496	if ($@) {
		2497	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2498	LOG llevError | logBacktrace, Carp::longmess $@;
		2499	}
		2500
		2501	if ($gen == $self->{_goto_generation}) {
		2502	delete $self->{_goto_generation};
1430	$self->leave_link ($map, $x, $y);	2503	$self->leave_link ($map, $x, $y);
		2504	}
		2505
		2506	$done->() if $done;
1431	})->prio (1);	2507	})->prio (1);
1432	}	2508	}
1433		2509
1434	=item $player_object->enter_exit ($exit_object)	2510	=item $player_object->enter_exit ($exit_object)
1435		2511
…		…
1437		2513
1438	sub parse_random_map_params {	2514	sub parse_random_map_params {
1439	my ($spec) = @_;	2515	my ($spec) = @_;
1440		2516
1441	my $rmp = { # defaults	2517	my $rmp = { # defaults
1442	xsize => 10,	2518	xsize => (cf::rndm 15, 40),
1443	ysize => 10,	2519	ysize => (cf::rndm 15, 40),
		2520	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2521	#layout => string,
1444	};	2522	};
1445		2523
1446	for (split /\n/, $spec) {	2524	for (split /\n/, $spec) {
1447	my ($k, $v) = split /\s+/, $_, 2;	2525	my ($k, $v) = split /\s+/, $_, 2;
1448		2526
…		…
1452	$rmp	2530	$rmp
1453	}	2531	}
1454		2532
1455	sub prepare_random_map {	2533	sub prepare_random_map {
1456	my ($exit) = @_;	2534	my ($exit) = @_;
		2535
		2536	my $guard = cf::lock_acquire "exit_prepare:$exit";
1457		2537
1458	# all this does is basically replace the /! path by	2538	# all this does is basically replace the /! path by
1459	# a new random map path (?random/...) with a seed	2539	# a new random map path (?random/...) with a seed
1460	# that depends on the exit object	2540	# that depends on the exit object
1461		2541
1462	my $rmp = parse_random_map_params $exit->msg;	2542	my $rmp = parse_random_map_params $exit->msg;
1463		2543
1464	if ($exit->map) {	2544	if ($exit->map) {
1465	$rmp->{region} = $exit->map->region_name;	2545	$rmp->{region} = $exit->region->name;
1466	$rmp->{origin_map} = $exit->map->path;	2546	$rmp->{origin_map} = $exit->map->path;
1467	$rmp->{origin_x} = $exit->x;	2547	$rmp->{origin_x} = $exit->x;
1468	$rmp->{origin_y} = $exit->y;	2548	$rmp->{origin_y} = $exit->y;
1469	}	2549	}
1470		2550
1471	$rmp->{random_seed} ||= $exit->random_seed;	2551	$rmp->{random_seed} ||= $exit->random_seed;
1472		2552
1473	my $data = cf::to_json $rmp;	2553	my $data = cf::to_json $rmp;
1474	my $md5 = Digest::MD5::md5_hex $data;	2554	my $md5 = Digest::MD5::md5_hex $data;
		2555	my $meta = "$RANDOMDIR/$md5.meta";
1475		2556
1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2557	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1477	aio_write $fh, 0, (length $data), $data, 0;	2558	aio_write $fh, 0, (length $data), $data, 0;
		2559	undef $fh;
		2560	aio_rename "$meta~", $meta;
1478		2561
1479	$exit->slaying ("?random/$md5");	2562	$exit->slaying ("?random/$md5");
1480	$exit->msg (undef);	2563	$exit->msg (undef);
1481	}	2564	}
1482	}	2565	}
…		…
1484	sub cf::object::player::enter_exit {	2567	sub cf::object::player::enter_exit {
1485	my ($self, $exit) = @_;	2568	my ($self, $exit) = @_;
1486		2569
1487	return unless $self->type == cf::PLAYER;	2570	return unless $self->type == cf::PLAYER;
1488		2571
		2572	if ($exit->slaying eq "/!") {
		2573	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2574	# the problem is that $exit might not survive long enough
		2575	# so it needs to be done right now, right here
		2576	cf::sync_job { prepare_random_map $exit };
		2577	}
		2578
		2579	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2580	my $hp = $exit->stats->hp;
		2581	my $sp = $exit->stats->sp;
		2582
1489	$self->enter_link;	2583	$self->enter_link;
1490		2584
		2585	# if exit is damned, update players death & WoR home-position
		2586	$self->contr->savebed ($slaying, $hp, $sp)
		2587	if $exit->flag (FLAG_DAMNED);
		2588
1491	(Coro::async {	2589	(async {
		2590	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2591
		2592	$self->deactivate_recursive; # just to be sure
1492	unless (eval {	2593	unless (eval {
1493		2594	$self->goto ($slaying, $hp, $sp);
1494	prepare_random_map $exit
1495	if $exit->slaying eq "/!";
1496
1497	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1498	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1499		2595
1500	1;	2596	1;
1501	}) {	2597	}) {
1502	$self->message ("Something went wrong deep within the crossfire server. "	2598	$self->message ("Something went wrong deep within the crossfire server. "
1503	. "I'll try to bring you back to the map you were before. "	2599	. "I'll try to bring you back to the map you were before. "
1504	. "Please report this to the dungeon master",	2600	. "Please report this to the dungeon master!",
1505	cf::NDI_UNIQUE | cf::NDI_RED);	2601	cf::NDI_UNIQUE | cf::NDI_RED);
1506		2602
1507	warn "ERROR in enter_exit: $@";	2603	warn "ERROR in enter_exit: $@";
1508	$self->leave_link;	2604	$self->leave_link;
1509	}	2605	}
1510	})->prio (1);	2606	})->prio (1);
…		…
1523		2619
1524	sub cf::client::send_drawinfo {	2620	sub cf::client::send_drawinfo {
1525	my ($self, $text, $flags) = @_;	2621	my ($self, $text, $flags) = @_;
1526		2622
1527	utf8::encode $text;	2623	utf8::encode $text;
1528	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2624	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1529	}	2625	}
1530		2626
		2627	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2628
		2629	Send a drawinfo or msg packet to the client, formatting the msg for the
		2630	client if neccessary. C<$type> should be a string identifying the type of
		2631	the message, with C<log> being the default. If C<$color> is negative, suppress
		2632	the message unless the client supports the msg packet.
		2633
		2634	=cut
		2635
		2636	our %CHANNEL = (
		2637	"c/identify" => {
		2638	id => "identify",
		2639	title => "Identify",
		2640	reply => undef,
		2641	tooltip => "Items recently identified",
		2642	},
		2643	"c/examine" => {
		2644	id => "examine",
		2645	title => "Examine",
		2646	reply => undef,
		2647	tooltip => "Signs and other items you examined",
		2648	},
		2649	);
		2650
		2651	sub cf::client::send_msg {
		2652	my ($self, $channel, $msg, $color, @extra) = @_;
		2653
		2654	$msg = $self->pl->expand_cfpod ($msg);
		2655
		2656	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2657
		2658	# check predefined channels, for the benefit of C
		2659	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2660
		2661	if (ref $channel) {
		2662	# send meta info to client, if not yet sent
		2663	unless (exists $self->{channel}{$channel->{id}}) {
		2664	$self->{channel}{$channel->{id}} = $channel;
		2665	$self->ext_msg (channel_info => $channel)
		2666	if $self->can_msg;
		2667	}
		2668
		2669	$channel = $channel->{id};
		2670	}
		2671
		2672	return unless @extra || length $msg;
		2673
		2674	if ($self->can_msg) {
		2675	# default colour, mask it out
		2676	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2677	if $color & cf::NDI_DEF;
		2678
		2679	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2680	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2681	} else {
		2682	if ($color >= 0) {
		2683	# replace some tags by gcfclient-compatible ones
		2684	for ($msg) {
		2685	1 while
		2686	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2687	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2688	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2689	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2690	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2691	}
		2692
		2693	$color &= cf::NDI_COLOR_MASK;
		2694
		2695	utf8::encode $msg;
		2696
		2697	if (0 && $msg =~ /\[/) {
		2698	# COMMAND/INFO
		2699	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2700	} else {
		2701	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2702	$self->send_packet ("drawinfo $color $msg")
		2703	}
		2704	}
		2705	}
		2706	}
		2707
		2708	=item $client->ext_msg ($type, @msg)
		2709
		2710	Sends an ext event to the client.
		2711
		2712	=cut
		2713
		2714	sub cf::client::ext_msg($$@) {
		2715	my ($self, $type, @msg) = @_;
		2716
		2717	if ($self->extcmd == 2) {
		2718	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2719	} elsif ($self->extcmd == 1) { # TODO: remove
		2720	push @msg, msgtype => "event_$type";
		2721	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2722	}
		2723	}
		2724
		2725	=item $client->ext_reply ($msgid, @msg)
		2726
		2727	Sends an ext reply to the client.
		2728
		2729	=cut
		2730
		2731	sub cf::client::ext_reply($$@) {
		2732	my ($self, $id, @msg) = @_;
		2733
		2734	if ($self->extcmd == 2) {
		2735	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2736	} elsif ($self->extcmd == 1) {
		2737	#TODO: version 1, remove
		2738	unshift @msg, msgtype => "reply", msgid => $id;
		2739	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2740	}
		2741	}
1531		2742
1532	=item $success = $client->query ($flags, "text", \&cb)	2743	=item $success = $client->query ($flags, "text", \&cb)
1533		2744
1534	Queues a query to the client, calling the given callback with	2745	Queues a query to the client, calling the given callback with
1535	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2746	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1536	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2747	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1537		2748
1538	Queries can fail, so check the return code. Or don't, as queries will become	2749	Queries can fail, so check the return code. Or don't, as queries will
1539	reliable at some point in the future.	2750	become reliable at some point in the future.
1540		2751
1541	=cut	2752	=cut
1542		2753
1543	sub cf::client::query {	2754	sub cf::client::query {
1544	my ($self, $flags, $text, $cb) = @_;	2755	my ($self, $flags, $text, $cb) = @_;
…		…
1552	utf8::encode $text;	2763	utf8::encode $text;
1553	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2764	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1554		2765
1555	$self->send_packet ($self->{query_queue}[0][0])	2766	$self->send_packet ($self->{query_queue}[0][0])
1556	if @{ $self->{query_queue} } == 1;	2767	if @{ $self->{query_queue} } == 1;
		2768
		2769	1
1557	}	2770	}
1558		2771
1559	cf::client->attach (	2772	cf::client->attach (
		2773	on_connect => sub {
		2774	my ($ns) = @_;
		2775
		2776	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2777	},
1560	on_reply => sub {	2778	on_reply => sub {
1561	my ($ns, $msg) = @_;	2779	my ($ns, $msg) = @_;
1562		2780
1563	# this weird shuffling is so that direct followup queries	2781	# this weird shuffling is so that direct followup queries
1564	# get handled first	2782	# get handled first
1565	my $queue = delete $ns->{query_queue};	2783	my $queue = delete $ns->{query_queue}
		2784	or return; # be conservative, not sure how that can happen, but we saw a crash here
1566		2785
1567	(shift @$queue)->[1]->($msg);	2786	(shift @$queue)->[1]->($msg);
		2787	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1568		2788
1569	push @{ $ns->{query_queue} }, @$queue;	2789	push @{ $ns->{query_queue} }, @$queue;
1570		2790
1571	if (@{ $ns->{query_queue} } == @$queue) {	2791	if (@{ $ns->{query_queue} } == @$queue) {
1572	if (@$queue) {	2792	if (@$queue) {
…		…
1574	} else {	2794	} else {
1575	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2795	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1576	}	2796	}
1577	}	2797	}
1578	},	2798	},
		2799	on_exticmd => sub {
		2800	my ($ns, $buf) = @_;
		2801
		2802	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2803
		2804	if (ref $msg) {
		2805	my ($type, $reply, @payload) =
		2806	"ARRAY" eq ref $msg
		2807	? @$msg
		2808	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2809
		2810	my @reply;
		2811
		2812	if (my $cb = $EXTICMD{$type}) {
		2813	@reply = $cb->($ns, @payload);
		2814	}
		2815
		2816	$ns->ext_reply ($reply, @reply)
		2817	if $reply;
		2818
		2819	} else {
		2820	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2821	}
		2822
		2823	cf::override;
		2824	},
1579	);	2825	);
1580		2826
1581	=item $client->coro (\&cb)	2827	=item $client->async (\&cb)
1582		2828
1583	Create a new coroutine, running the specified callback. The coroutine will	2829	Create a new coroutine, running the specified callback. The coroutine will
1584	be automatically cancelled when the client gets destroyed (e.g. on logout,	2830	be automatically cancelled when the client gets destroyed (e.g. on logout,
1585	or loss of connection).	2831	or loss of connection).
1586		2832
1587	=cut	2833	=cut
1588		2834
1589	sub cf::client::coro {	2835	sub cf::client::async {
1590	my ($self, $cb) = @_;	2836	my ($self, $cb) = @_;
1591		2837
1592	my $coro; $coro = async {	2838	my $coro = &Coro::async ($cb);
1593	eval {
1594	$cb->();
1595	};
1596	warn $@ if $@;
1597	};
1598		2839
1599	$coro->on_destroy (sub {	2840	$coro->on_destroy (sub {
1600	delete $self->{_coro}{$coro+0};	2841	delete $self->{_coro}{$coro+0};
1601	});	2842	});
1602		2843
…		…
1629	our $safe = new Safe "safe";	2870	our $safe = new Safe "safe";
1630	our $safe_hole = new Safe::Hole;	2871	our $safe_hole = new Safe::Hole;
1631		2872
1632	$SIG{FPE} = 'IGNORE';	2873	$SIG{FPE} = 'IGNORE';
1633		2874
1634	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2875	$safe->permit_only (Opcode::opset qw(
		2876	:base_core :base_mem :base_orig :base_math
		2877	grepstart grepwhile mapstart mapwhile
		2878	sort time
		2879	));
1635		2880
1636	# here we export the classes and methods available to script code	2881	# here we export the classes and methods available to script code
1637		2882
1638	=pod	2883	=pod
1639		2884
1640	The following fucntions and emthods are available within a safe environment:	2885	The following functions and methods are available within a safe environment:
1641		2886
1642	cf::object contr pay_amount pay_player map	2887	cf::object
		2888	contr pay_amount pay_player map x y force_find force_add
		2889	insert remove name archname title slaying race decrease_ob_nr
		2890
1643	cf::object::player player	2891	cf::object::player
1644	cf::player peaceful	2892	player
1645	cf::map trigger	2893
		2894	cf::player
		2895	peaceful
		2896
		2897	cf::map
		2898	trigger
1646		2899
1647	=cut	2900	=cut
1648		2901
1649	for (	2902	for (
1650	["cf::object" => qw(contr pay_amount pay_player map)],	2903	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2904	insert remove inv name archname title slaying race
		2905	decrease_ob_nr)],
1651	["cf::object::player" => qw(player)],	2906	["cf::object::player" => qw(player)],
1652	["cf::player" => qw(peaceful)],	2907	["cf::player" => qw(peaceful)],
1653	["cf::map" => qw(trigger)],	2908	["cf::map" => qw(trigger)],
1654	) {	2909	) {
1655	no strict 'refs';	2910	no strict 'refs';
…		…
1726	=back	2981	=back
1727		2982
1728	=cut	2983	=cut
1729		2984
1730	#############################################################################	2985	#############################################################################
		2986	# the server's init and main functions
1731		2987
1732	=head2 EXTENSION DATABASE SUPPORT	2988	sub load_facedata($) {
		2989	my ($path) = @_;
1733		2990
1734	Crossfire maintains a very simple database for extension use. It can	2991	# HACK to clear player env face cache, we need some signal framework
1735	currently store anything that can be serialised using Storable, which	2992	# for this (global event?)
1736	excludes objects.	2993	%ext::player_env::MUSIC_FACE_CACHE = ();
1737		2994
1738	The parameter C<$family> should best start with the name of the extension	2995	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1739	using it, it should be unique.
1740		2996
1741	=over 4	2997	warn "loading facedata from $path\n";
1742		2998
1743	=item $hashref = cf::db_get $family	2999	my $facedata;
		3000	0 < aio_load $path, $facedata
		3001	or die "$path: $!";
1744		3002
1745	Return a hashref for use by the extension C<$family>, which can be	3003	$facedata = Coro::Storable::thaw $facedata;
1746	modified. After modifications, you have to call C<cf::db_dirty> or
1747	C<cf::db_sync>.
1748		3004
1749	=item $value = cf::db_get $family => $key	3005	$facedata->{version} == 2
		3006	or cf::cleanup "$path: version mismatch, cannot proceed.";
1750		3007
1751	Returns a single value from the database	3008	# patch in the exptable
1752		3009	$facedata->{resource}{"res/exp_table"} = {
1753	=item cf::db_put $family => $hashref	3010	type => FT_RSRC,
1754		3011	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1755	Stores the given family hashref into the database. Updates are delayed, if
1756	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1757
1758	=item cf::db_put $family => $key => $value
1759
1760	Stores the given C<$value> in the family hash. Updates are delayed, if you
1761	want the data to be synced to disk immediately, use C<cf::db_sync>.
1762
1763	=item cf::db_dirty
1764
1765	Marks the database as dirty, to be updated at a later time.
1766
1767	=item cf::db_sync
1768
1769	Immediately write the database to disk I<if it is dirty>.
1770
1771	=cut
1772
1773	our $DB;
1774
1775	{
1776	my $path = cf::localdir . "/database.pst";
1777
1778	sub db_load() {
1779	warn "loading database $path\n";#d# remove later
1780	$DB = stat $path ? Storable::retrieve $path : { };
1781	}
1782
1783	my $pid;
1784
1785	sub db_save() {
1786	warn "saving database $path\n";#d# remove later
1787	waitpid $pid, 0 if $pid;
1788	if (0 == ($pid = fork)) {
1789	$DB->{_meta}{version} = 1;
1790	Storable::nstore $DB, "$path~";
1791	rename "$path~", $path;
1792	cf::_exit 0 if defined $pid;
1793	}
1794	}
1795
1796	my $dirty;
1797
1798	sub db_sync() {
1799	db_save if $dirty;
1800	undef $dirty;
1801	}
1802
1803	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1804	db_sync;
1805	});	3012	};
		3013	cf::cede_to_tick;
1806		3014
1807	sub db_dirty() {
1808	$dirty = 1;
1809	$idle->start;
1810	}	3015	{
		3016	my $faces = $facedata->{faceinfo};
1811		3017
1812	sub db_get($;$) {	3018	while (my ($face, $info) = each %$faces) {
1813	@_ >= 2	3019	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1814	? $DB->{$_[0]}{$_[1]}	3020	cf::face::set_visibility $idx, $info->{visibility};
1815	: ($DB->{$_[0]} ||= { })	3021	cf::face::set_magicmap $idx, $info->{magicmap};
1816	}	3022	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3023	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1817		3024
1818	sub db_put($$;$) {	3025	cf::cede_to_tick;
1819	if (@_ >= 3) {
1820	$DB->{$_[0]}{$_[1]} = $_[2];
1821	} else {
1822	$DB->{$_[0]} = $_[1];
1823	}
1824	db_dirty;
1825	}
1826
1827	cf::global->attach (
1828	prio => 10000,
1829	on_cleanup => sub {
1830	db_sync;
1831	},	3026	}
1832	);
1833	}
1834		3027
1835	#############################################################################	3028	while (my ($face, $info) = each %$faces) {
1836	# the server's main()	3029	next unless $info->{smooth};
		3030	my $idx = cf::face::find $face
		3031	or next;
		3032	if (my $smooth = cf::face::find $info->{smooth}) {
		3033	cf::face::set_smooth $idx, $smooth;
		3034	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3035	} else {
		3036	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3037	}
1837		3038
1838	sub cfg_load {	3039	cf::cede_to_tick;
		3040	}
		3041	}
		3042
		3043	{
		3044	my $anims = $facedata->{animinfo};
		3045
		3046	while (my ($anim, $info) = each %$anims) {
		3047	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3048	cf::cede_to_tick;
		3049	}
		3050
		3051	cf::anim::invalidate_all; # d'oh
		3052	}
		3053
		3054	{
		3055	# TODO: for gcfclient pleasure, we should give resources
		3056	# that gcfclient doesn't grok a >10000 face index.
		3057	my $res = $facedata->{resource};
		3058
		3059	my $soundconf = delete $res->{"res/sound.conf"};
		3060
		3061	while (my ($name, $info) = each %$res) {
		3062	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3063	my $data;
		3064
		3065	if ($info->{type} & 1) {
		3066	# prepend meta info
		3067
		3068	my $meta = $enc->encode ({
		3069	name => $name,
		3070	%{ $info->{meta} || {} },
		3071	});
		3072
		3073	$data = pack "(w/a*)*", $meta, $info->{data};
		3074	} else {
		3075	$data = $info->{data};
		3076	}
		3077
		3078	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3079	cf::face::set_type $idx, $info->{type};
		3080
		3081	cf::cede_to_tick;
		3082	}
		3083
		3084	if ($soundconf) {
		3085	$soundconf = $enc->decode (delete $soundconf->{data});
		3086
		3087	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3088	my $sound = $soundconf->{compat}[$_]
		3089	or next;
		3090
		3091	my $face = cf::face::find "sound/$sound->[1]";
		3092	cf::sound::set $sound->[0] => $face;
		3093	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3094	}
		3095
		3096	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3097	my $face = cf::face::find "sound/$v";
		3098	cf::sound::set $k => $face;
		3099	}
		3100	}
		3101	}
		3102
		3103	1
		3104	}
		3105
		3106	register_exticmd fx_want => sub {
		3107	my ($ns, $want) = @_;
		3108
		3109	while (my ($k, $v) = each %$want) {
		3110	$ns->fx_want ($k, $v);
		3111	}
		3112	};
		3113
		3114	sub reload_regions {
		3115	# HACK to clear player env face cache, we need some signal framework
		3116	# for this (global event?)
		3117	%ext::player_env::MUSIC_FACE_CACHE = ();
		3118
		3119	load_resource_file "$MAPDIR/regions"
		3120	or die "unable to load regions file\n";
		3121
		3122	for (cf::region::list) {
		3123	$_->{match} = qr/$_->{match}/
		3124	if exists $_->{match};
		3125	}
		3126	}
		3127
		3128	sub reload_facedata {
		3129	load_facedata "$DATADIR/facedata"
		3130	or die "unable to load facedata\n";
		3131	}
		3132
		3133	sub reload_archetypes {
		3134	load_resource_file "$DATADIR/archetypes"
		3135	or die "unable to load archetypes\n";
		3136	#d# NEED to laod twice to resolve forward references
		3137	# this really needs to be done in an extra post-pass
		3138	# (which needs to be synchronous, so solve it differently)
		3139	load_resource_file "$DATADIR/archetypes"
		3140	or die "unable to load archetypes\n";
		3141	}
		3142
		3143	sub reload_treasures {
		3144	load_resource_file "$DATADIR/treasures"
		3145	or die "unable to load treasurelists\n";
		3146	}
		3147
		3148	sub reload_resources {
		3149	warn "reloading resource files...\n";
		3150
		3151	reload_regions;
		3152	reload_facedata;
		3153	#reload_archetypes;#d#
		3154	reload_archetypes;
		3155	reload_treasures;
		3156
		3157	warn "finished reloading resource files\n";
		3158	}
		3159
		3160	sub init {
		3161	reload_resources;
		3162	}
		3163
		3164	sub reload_config {
1839	open my $fh, "<:utf8", cf::confdir . "/config"	3165	open my $fh, "<:utf8", "$CONFDIR/config"
1840	or return;	3166	or return;
1841		3167
1842	local $/;	3168	local $/;
1843	*CFG = YAML::Syck::Load <$fh>;	3169	*CFG = YAML::Syck::Load <$fh>;
		3170
		3171	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3172
		3173	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3174	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3175
		3176	if (exists $CFG{mlockall}) {
		3177	eval {
		3178	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3179	and die "WARNING: m(un)lockall failed: $!\n";
		3180	};
		3181	warn $@ if $@;
		3182	}
1844	}	3183	}
1845		3184
1846	sub main {	3185	sub main {
1847	# we must not ever block the main coroutine	3186	# we must not ever block the main coroutine
1848	local $Coro::idle = sub {	3187	local $Coro::idle = sub {
1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3188	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1850	(Coro::unblock_sub {	3189	(async {
		3190	$Coro::current->{desc} = "IDLE BUG HANDLER";
1851	Event::one_event;	3191	Event::one_event;
1852	})->();	3192	})->prio (Coro::PRIO_MAX);
1853	};	3193	};
1854		3194
1855	cfg_load;	3195	reload_config;
1856	db_load;	3196	db_init;
1857	load_extensions;	3197	load_extensions;
		3198
		3199	$TICK_WATCHER->start;
1858	Event::loop;	3200	Event::loop;
1859	}	3201	}
1860		3202
1861	#############################################################################	3203	#############################################################################
1862	# initialisation	3204	# initialisation and cleanup
1863		3205
		3206	# install some emergency cleanup handlers
		3207	BEGIN {
		3208	for my $signal (qw(INT HUP TERM)) {
		3209	Event->signal (
		3210	reentrant => 0,
		3211	data => WF_AUTOCANCEL,
		3212	signal => $signal,
		3213	prio => 0,
		3214	cb => sub {
		3215	cf::cleanup "SIG$signal";
		3216	},
		3217	);
		3218	}
		3219	}
		3220
		3221	sub write_runtime {
		3222	my $runtime = "$LOCALDIR/runtime";
		3223
		3224	# first touch the runtime file to show we are still running:
		3225	# the fsync below can take a very very long time.
		3226
		3227	IO::AIO::aio_utime $runtime, undef, undef;
		3228
		3229	my $guard = cf::lock_acquire "write_runtime";
		3230
		3231	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3232	or return;
		3233
		3234	my $value = $cf::RUNTIME + 90 + 10;
		3235	# 10 is the runtime save interval, for a monotonic clock
		3236	# 60 allows for the watchdog to kill the server.
		3237
		3238	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3239	and return;
		3240
		3241	# always fsync - this file is important
		3242	aio_fsync $fh
		3243	and return;
		3244
		3245	# touch it again to show we are up-to-date
		3246	aio_utime $fh, undef, undef;
		3247
		3248	close $fh
		3249	or return;
		3250
		3251	aio_rename "$runtime~", $runtime
		3252	and return;
		3253
		3254	warn "runtime file written.\n";
		3255
		3256	1
		3257	}
		3258
		3259	sub emergency_save() {
		3260	my $freeze_guard = cf::freeze_mainloop;
		3261
		3262	warn "enter emergency perl save\n";
		3263
		3264	cf::sync_job {
		3265	# use a peculiar iteration method to avoid tripping on perl
		3266	# refcount bugs in for. also avoids problems with players
		3267	# and maps saved/destroyed asynchronously.
		3268	warn "begin emergency player save\n";
		3269	for my $login (keys %cf::PLAYER) {
		3270	my $pl = $cf::PLAYER{$login} or next;
		3271	$pl->valid or next;
		3272	$pl->save;
		3273	}
		3274	warn "end emergency player save\n";
		3275
		3276	warn "begin emergency map save\n";
		3277	for my $path (keys %cf::MAP) {
		3278	my $map = $cf::MAP{$path} or next;
		3279	$map->valid or next;
		3280	$map->save;
		3281	}
		3282	warn "end emergency map save\n";
		3283
		3284	warn "begin emergency database checkpoint\n";
		3285	BDB::db_env_txn_checkpoint $DB_ENV;
		3286	warn "end emergency database checkpoint\n";
		3287	};
		3288
		3289	warn "leave emergency perl save\n";
		3290	}
		3291
		3292	sub post_cleanup {
		3293	my ($make_core) = @_;
		3294
		3295	warn Carp::longmess "post_cleanup backtrace"
		3296	if $make_core;
		3297	}
		3298
1864	sub reload() {	3299	sub do_reload_perl() {
1865	# can/must only be called in main	3300	# can/must only be called in main
1866	if ($Coro::current != $Coro::main) {	3301	if ($Coro::current != $Coro::main) {
1867	warn "can only reload from main coroutine\n";	3302	warn "can only reload from main coroutine";
1868	return;	3303	return;
1869	}	3304	}
1870		3305
1871	warn "reloading...";	3306	warn "reloading...";
1872		3307
1873	local $FREEZE = 1;	3308	warn "entering sync_job";
		3309
		3310	cf::sync_job {
		3311	cf::write_runtime; # external watchdog should not bark
1874	cf::emergency_save;	3312	cf::emergency_save;
		3313	cf::write_runtime; # external watchdog should not bark
1875		3314
1876	eval {	3315	warn "syncing database to disk";
		3316	BDB::db_env_txn_checkpoint $DB_ENV;
		3317
1877	# if anything goes wrong in here, we should simply crash as we already saved	3318	# if anything goes wrong in here, we should simply crash as we already saved
1878		3319
1879	# cancel all watchers	3320	warn "cancelling all WF_AUTOCANCEL watchers";
1880	for (Event::all_watchers) {	3321	for (Event::all_watchers) {
1881	$_->cancel if $_->data & WF_AUTOCANCEL;	3322	$_->cancel if $_->data & WF_AUTOCANCEL;
1882	}	3323	}
1883		3324
		3325	warn "flushing outstanding aio requests";
		3326	for (;;) {
		3327	BDB::flush;
		3328	IO::AIO::flush;
		3329	Coro::cede;
		3330	last unless IO::AIO::nreqs || BDB::nreqs;
		3331	warn "iterate...";
		3332	}
		3333
		3334	++$RELOAD;
		3335
1884	# cancel all extension coros	3336	warn "cancelling all extension coros";
1885	$_->cancel for values %EXT_CORO;	3337	$_->cancel for values %EXT_CORO;
1886	%EXT_CORO = ();	3338	%EXT_CORO = ();
1887		3339
1888	# unload all extensions	3340	warn "removing commands";
1889	for (@exts) {	3341	%COMMAND = ();
		3342
		3343	warn "removing ext/exti commands";
		3344	%EXTCMD = ();
		3345	%EXTICMD = ();
		3346
		3347	warn "unloading/nuking all extensions";
		3348	for my $pkg (@EXTS) {
1890	warn "unloading <$_>";	3349	warn "... unloading $pkg";
1891	unload_extension $_;	3350
		3351	if (my $cb = $pkg->can ("unload")) {
		3352	eval {
		3353	$cb->($pkg);
		3354	1
		3355	} or warn "$pkg unloaded, but with errors: $@";
1892	}	3356	}
1893		3357
		3358	warn "... nuking $pkg";
		3359	Symbol::delete_package $pkg;
		3360	}
		3361
1894	# unload all modules loaded from $LIBDIR	3362	warn "unloading all perl modules loaded from $LIBDIR";
1895	while (my ($k, $v) = each %INC) {	3363	while (my ($k, $v) = each %INC) {
1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3364	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1897		3365
1898	warn "removing <$k>";	3366	warn "... unloading $k";
1899	delete $INC{$k};	3367	delete $INC{$k};
1900		3368
1901	$k =~ s/\.pm$//;	3369	$k =~ s/\.pm$//;
1902	$k =~ s/\//::/g;	3370	$k =~ s/\//::/g;
1903		3371
…		…
1906	}	3374	}
1907		3375
1908	Symbol::delete_package $k;	3376	Symbol::delete_package $k;
1909	}	3377	}
1910		3378
1911	# sync database to disk
1912	cf::db_sync;
1913	IO::AIO::flush;
1914
1915	# get rid of safe::, as good as possible	3379	warn "getting rid of safe::, as good as possible";
1916	Symbol::delete_package "safe::$_"	3380	Symbol::delete_package "safe::$_"
1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3381	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1918		3382
1919	# remove register_script_function callbacks
1920	# TODO
1921
1922	# unload cf.pm "a bit"	3383	warn "unloading cf.pm \"a bit\"";
1923	delete $INC{"cf.pm"};	3384	delete $INC{"cf.pm"};
		3385	delete $INC{"cf/pod.pm"};
1924		3386
1925	# don't, removes xs symbols, too,	3387	# don't, removes xs symbols, too,
1926	# and global variables created in xs	3388	# and global variables created in xs
1927	#Symbol::delete_package __PACKAGE__;	3389	#Symbol::delete_package __PACKAGE__;
1928		3390
1929	# reload cf.pm	3391	warn "unload completed, starting to reload now";
		3392
1930	warn "reloading cf.pm";	3393	warn "reloading cf.pm";
1931	require cf;	3394	require cf;
1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3395	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1933		3396
1934	# load config and database again	3397	warn "loading config and database again";
1935	cf::cfg_load;	3398	cf::reload_config;
1936	cf::db_load;
1937		3399
1938	# load extensions
1939	warn "load extensions";	3400	warn "loading extensions";
1940	cf::load_extensions;	3401	cf::load_extensions;
1941		3402
1942	# reattach attachments to objects	3403	warn "reattaching attachments to objects/players";
1943	warn "reattach";	3404	_global_reattach; # objects, sockets
1944	_global_reattach;	3405	warn "reattaching attachments to maps";
1945	};	3406	reattach $_ for values %MAP;
		3407	warn "reattaching attachments to players";
		3408	reattach $_ for values %PLAYER;
1946		3409
1947	if ($@) {	3410	warn "leaving sync_job";
		3411
		3412	1
		3413	} or do {
1948	warn $@;	3414	warn $@;
1949	warn "error while reloading, exiting.";	3415	warn "error while reloading, exiting.";
1950	exit 1;	3416	exit 1;
1951	}	3417	};
1952		3418
1953	warn "reloaded successfully";	3419	warn "reloaded";
1954	};	3420	};
1955		3421
1956	#############################################################################	3422	our $RELOAD_WATCHER; # used only during reload
1957		3423
1958	unless ($LINK_MAP) {	3424	sub reload_perl() {
1959	$LINK_MAP = cf::map::new;	3425	# doing reload synchronously and two reloads happen back-to-back,
		3426	# coro crashes during coro_state_free->destroy here.
1960		3427
1961	$LINK_MAP->width (41);	3428	$RELOAD_WATCHER ||= Event->timer (
1962	$LINK_MAP->height (41);	3429	reentrant => 0,
1963	$LINK_MAP->alloc;
1964	$LINK_MAP->path ("{link}");
1965	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1966	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1967
1968	# dirty hack because... archetypes are not yet loaded
1969	Event->timer (
1970	after => 2,	3430	after => 0,
		3431	data => WF_AUTOCANCEL,
1971	cb => sub {	3432	cb => sub {
1972	$_[0]->w->cancel;	3433	do_reload_perl;
1973		3434	undef $RELOAD_WATCHER;
1974	# provide some exits "home"
1975	my $exit = cf::object::new "exit";
1976
1977	$exit->slaying ($EMERGENCY_POSITION->[0]);
1978	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1979	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1980
1981	$LINK_MAP->insert ($exit->clone, 19, 19);
1982	$LINK_MAP->insert ($exit->clone, 19, 20);
1983	$LINK_MAP->insert ($exit->clone, 19, 21);
1984	$LINK_MAP->insert ($exit->clone, 20, 19);
1985	$LINK_MAP->insert ($exit->clone, 20, 21);
1986	$LINK_MAP->insert ($exit->clone, 21, 19);
1987	$LINK_MAP->insert ($exit->clone, 21, 20);
1988	$LINK_MAP->insert ($exit->clone, 21, 21);
1989
1990	$exit->destroy;
1991	});	3435	},
1992		3436	);
1993	$LINK_MAP->{deny_save} = 1;
1994	$LINK_MAP->{deny_reset} = 1;
1995
1996	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1997	}	3437	}
1998
1999	register "<global>", __PACKAGE__;
2000		3438
2001	register_command "reload" => sub {	3439	register_command "reload" => sub {
2002	my ($who, $arg) = @_;	3440	my ($who, $arg) = @_;
2003		3441
2004	if ($who->flag (FLAG_WIZ)) {	3442	if ($who->flag (FLAG_WIZ)) {
2005	$who->message ("start of reload.");
2006	reload;
2007	$who->message ("end of reload.");	3443	$who->message ("reloading server.");
		3444	async {
		3445	$Coro::current->{desc} = "perl_reload";
		3446	reload_perl;
		3447	};
2008	}	3448	}
2009	};	3449	};
2010		3450
2011	unshift @INC, $LIBDIR;	3451	unshift @INC, $LIBDIR;
		3452
		3453	my $bug_warning = 0;
		3454
		3455	our @WAIT_FOR_TICK;
		3456	our @WAIT_FOR_TICK_BEGIN;
		3457
		3458	sub wait_for_tick {
		3459	return unless $TICK_WATCHER->is_active;
		3460	return if $Coro::current == $Coro::main;
		3461
		3462	my $signal = new Coro::Signal;
		3463	push @WAIT_FOR_TICK, $signal;
		3464	$signal->wait;
		3465	}
		3466
		3467	sub wait_for_tick_begin {
		3468	return unless $TICK_WATCHER->is_active;
		3469	return if $Coro::current == $Coro::main;
		3470
		3471	my $signal = new Coro::Signal;
		3472	push @WAIT_FOR_TICK_BEGIN, $signal;
		3473	$signal->wait;
		3474	}
2012		3475
2013	$TICK_WATCHER = Event->timer (	3476	$TICK_WATCHER = Event->timer (
2014	reentrant => 0,	3477	reentrant => 0,
		3478	parked => 1,
2015	prio => 0,	3479	prio => 0,
2016	at => $NEXT_TICK || $TICK,	3480	at => $NEXT_TICK || $TICK,
2017	data => WF_AUTOCANCEL,	3481	data => WF_AUTOCANCEL,
2018	cb => sub {	3482	cb => sub {
2019	unless ($FREEZE) {	3483	if ($Coro::current != $Coro::main) {
		3484	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3485	unless ++$bug_warning > 10;
		3486	return;
		3487	}
		3488
		3489	$NOW = $tick_start = Event::time;
		3490
2020	cf::server_tick; # one server iteration	3491	cf::server_tick; # one server iteration
		3492
2021	$RUNTIME += $TICK;	3493	$RUNTIME += $TICK;
2022	}
2023
2024	$NEXT_TICK += $TICK;	3494	$NEXT_TICK += $TICK;
2025		3495
		3496	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3497	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3498	Coro::async_pool {
		3499	$Coro::current->{desc} = "runtime saver";
		3500	write_runtime
		3501	or warn "ERROR: unable to write runtime file: $!";
		3502	};
		3503	}
		3504
		3505	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3506	$sig->send;
		3507	}
		3508	while (my $sig = shift @WAIT_FOR_TICK) {
		3509	$sig->send;
		3510	}
		3511
		3512	$NOW = Event::time;
		3513
2026	# if we are delayed by four ticks or more, skip them all	3514	# if we are delayed by four ticks or more, skip them all
2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3515	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2028		3516
2029	$TICK_WATCHER->at ($NEXT_TICK);	3517	$TICK_WATCHER->at ($NEXT_TICK);
2030	$TICK_WATCHER->start;	3518	$TICK_WATCHER->start;
		3519
		3520	$LOAD = ($NOW - $tick_start) / $TICK;
		3521	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3522
		3523	_post_tick;
2031	},	3524	},
2032	);	3525	);
2033		3526
		3527	{
		3528	BDB::min_parallel 8;
2034	IO::AIO::max_poll_time $TICK * 0.2;	3529	BDB::max_poll_time $TICK * 0.1;
2035		3530	$BDB_POLL_WATCHER = Event->io (
2036	Event->io (	3531	reentrant => 0,
2037	fd => IO::AIO::poll_fileno,	3532	fd => BDB::poll_fileno,
2038	poll => 'r',	3533	poll => 'r',
2039	prio => 5,	3534	prio => 0,
2040	data => WF_AUTOCANCEL,
2041	cb => \&IO::AIO::poll_cb,
2042	);
2043
2044	Event->timer (
2045	data => WF_AUTOCANCEL,	3535	data => WF_AUTOCANCEL,
		3536	cb => \&BDB::poll_cb,
		3537	);
		3538
		3539	BDB::set_sync_prepare {
		3540	my $status;
		3541	my $current = $Coro::current;
		3542	(
		3543	sub {
		3544	$status = $!;
		3545	$current->ready; undef $current;
		3546	},
		3547	sub {
		3548	Coro::schedule while defined $current;
		3549	$! = $status;
		3550	},
		3551	)
		3552	};
		3553
		3554	unless ($DB_ENV) {
		3555	$DB_ENV = BDB::db_env_create;
		3556	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3557	| BDB::LOG_AUTOREMOVE, 1);
		3558	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3559	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3560
		3561	cf::sync_job {
		3562	eval {
		3563	BDB::db_env_open
		3564	$DB_ENV,
		3565	$BDBDIR,
		3566	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3567	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3568	0666;
		3569
		3570	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3571	};
		3572
		3573	cf::cleanup "db_env_open(db): $@" if $@;
		3574	};
		3575	}
		3576
		3577	$BDB_DEADLOCK_WATCHER = Event->timer (
2046	after => 0,	3578	after => 3,
2047	interval => 10,	3579	interval => 1,
		3580	hard => 1,
		3581	prio => 0,
		3582	data => WF_AUTOCANCEL,
2048	cb => sub {	3583	cb => sub {
2049	(Coro::unblock_sub {	3584	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2050	write_runtime	3585	},
2051	or warn "ERROR: unable to write runtime file: $!";	3586	);
		3587	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3588	after => 11,
		3589	interval => 60,
		3590	hard => 1,
		3591	prio => 0,
		3592	data => WF_AUTOCANCEL,
		3593	cb => sub {
		3594	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3595	},
		3596	);
		3597	$BDB_TRICKLE_WATCHER = Event->timer (
		3598	after => 5,
		3599	interval => 10,
		3600	hard => 1,
		3601	prio => 0,
		3602	data => WF_AUTOCANCEL,
		3603	cb => sub {
		3604	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3605	},
		3606	);
		3607	}
		3608
		3609	{
		3610	IO::AIO::min_parallel 8;
		3611
		3612	undef $Coro::AIO::WATCHER;
		3613	IO::AIO::max_poll_time $TICK * 0.1;
		3614	$AIO_POLL_WATCHER = Event->io (
		3615	reentrant => 0,
		3616	data => WF_AUTOCANCEL,
		3617	fd => IO::AIO::poll_fileno,
		3618	poll => 'r',
		3619	prio => 6,
		3620	cb => \&IO::AIO::poll_cb,
		3621	);
		3622	}
		3623
		3624	my $_log_backtrace;
		3625
		3626	sub _log_backtrace {
		3627	my ($msg, @addr) = @_;
		3628
		3629	$msg =~ s/\n//;
		3630
		3631	# limit the # of concurrent backtraces
		3632	if ($_log_backtrace < 2) {
		3633	++$_log_backtrace;
		3634	async {
		3635	$Coro::current->{desc} = "abt $msg";
		3636
		3637	my @bt = fork_call {
		3638	@addr = map { sprintf "%x", $_ } @addr;
		3639	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3640	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3641	or die "addr2line: $!";
		3642
		3643	my @funcs;
		3644	my @res = <$fh>;
		3645	chomp for @res;
		3646	while (@res) {
		3647	my ($func, $line) = splice @res, 0, 2, ();
		3648	push @funcs, "[$func] $line";
		3649	}
		3650
		3651	@funcs
		3652	};
		3653
		3654	LOG llevInfo, "[ABT] $msg\n";
		3655	LOG llevInfo, "[ABT] $_\n" for @bt;
		3656	--$_log_backtrace;
2052	})->();	3657	};
		3658	} else {
		3659	LOG llevInfo, "[ABT] $msg\n";
		3660	LOG llevInfo, "[ABT] [suppressed]\n";
2053	},	3661	}
2054	);	3662	}
		3663
		3664	# load additional modules
		3665	use cf::pod;
		3666
		3667	END { cf::emergency_save }
2055		3668
2056	1	3669	1
2057		3670

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