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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 1.409 by root, Mon Jan 14 11:41:48 2008 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 Storable;	8	use Socket;
		9	use EV 1.86;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3;	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
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::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
		28	use BDB ();
		29	use Data::Dumper;
20	use Digest::MD5;	30	use Digest::MD5;
21	use Fcntl;	31	use Fcntl;
		32	use YAML ();
22	use IO::AIO 2.31 ();	33	use IO::AIO 2.51 ();
23	use YAML::Syck ();
24	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
25		37
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	# configure various modules to our taste
		39	#
		40	$Storable::canonical = 1; # reduce rsync transfers
		41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
27		43
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;
30
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	44	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		45
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	46	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		47
35	our %COMMAND = ();	48	our %COMMAND = ();
36	our %COMMAND_TIME = ();	49	our %COMMAND_TIME = ();
		50
		51	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	52	our %EXTCMD = ();
		53	our %EXTICMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71	our %RESOURCE;
		72
		73	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	74	our $TICK_WATCHER;
		75	our $AIO_POLL_WATCHER;
		76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	77	our $NEXT_TICK;
45	our $NOW;	78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $BDB_DEADLOCK_WATCHER;
		82	our $BDB_CHECKPOINT_WATCHER;
		83	our $BDB_TRICKLE_WATCHER;
		84	our $DB_ENV;
46		85
47	our %CFG;	86	our %CFG;
48		87
49	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	89	our $RUNTIME;
		90	our $NOW;
51		91
52	our %MAP; # all maps	92	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	93	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	94	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	95
56	our %EXT_CORO;	96	# used to convert map paths into valid unix filenames by replacing / by ∕
		97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
57		102
58	binmode STDOUT;	103	binmode STDOUT;
59	binmode STDERR;	104	binmode STDERR;
60		105
61	# read virtual server time, if available	106	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
66	}	111	}
67		112
68	mkdir cf::localdir;	113	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		115
74	# a special map that is always available	116	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		117
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	118	sub cf::map::normalise;
78		119
79	#############################################################################	120	#############################################################################
80		121
81	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
82		123
…		…
89	=item $cf::RUNTIME	130	=item $cf::RUNTIME
90		131
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	133	every server tick.
93		134
94	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		138
96	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
98		143
99	=item $cf::NOW	144	=item $cf::NOW
100		145
101	The time of the last (current) server tick.	146	The time of the last (current) server tick.
102		147
103	=item $cf::TICK	148	=item $cf::TICK
104		149
105	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
106		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
		161
107	=item %cf::CFG	162	=item %cf::CFG
108		163
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
111		178
112	=back	179	=back
113		180
114	=cut	181	=cut
115		182
116	BEGIN {	183	BEGIN {
117	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	185	my $msg = join "", @_;
119	utf8::encode $msg;
120		186
121	$msg .= "\n"	187	$msg .= "\n"
122	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
123		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
124	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
125	};	193	};
126	}	194	}
		195
		196	$Coro::State::DIEHOOK = sub {
		197	warn Carp::longmess $_[0];
		198	Coro::terminate;
		199	};
127		200
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	201	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	202	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	203	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	204	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	205	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		206	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	207	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		208
135	# we bless all objects into (empty) derived classes to force a method lookup	209	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	210	# within the Safe compartment.
137	for my $pkg (qw(	211	for my $pkg (qw(
138	cf::global cf::attachable	212	cf::global cf::attachable
…		…
143	)) {	217	)) {
144	no strict 'refs';	218	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	219	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	220	}
147		221
148	$Event::DIED = sub {	222	$EV::DIED = sub {
149	warn "error in event callback: @_";	223	warn "error in event callback: @_";
150	};	224	};
151		225
152	my %ext_pkg;	226	#############################################################################
153	my @exts;
154	my @hook;
155		227
156	=head2 UTILITY FUNCTIONS	228	=head2 UTILITY FUNCTIONS
157		229
158	=over 4	230	=over 4
159		231
160	=cut	232	=item dumpval $ref
161		233
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	234	=cut
163		235
		236	sub dumpval {
		237	eval {
		238	local $SIG{__DIE__};
		239	my $d;
		240	if (1) {
		241	$d = new Data::Dumper([$_[0]], ["*var"]);
		242	$d->Terse(1);
		243	$d->Indent(2);
		244	$d->Quotekeys(0);
		245	$d->Useqq(1);
		246	#$d->Bless(...);
		247	$d->Seen($_[1]) if @_ > 1;
		248	$d = $d->Dump();
		249	}
		250	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		251	$d
		252	} || "[unable to dump $_[0]: '$@']";
		253	}
		254
164	=item $ref = cf::from_json $json	255	=item $ref = cf::decode_json $json
165		256
166	Converts a JSON string into the corresponding perl data structure.	257	Converts a JSON string into the corresponding perl data structure.
167		258
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	259	=item $json = cf::encode_json $ref
176		260
177	Converts a perl data structure into its JSON representation.	261	Converts a perl data structure into its JSON representation.
178		262
179	=cut	263	=cut
180		264
181	sub to_json($) {	265	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	266
183	JSON::Syck::Dump $_[0]	267	sub encode_json($) { $json_coder->encode ($_[0]) }
		268	sub decode_json($) { $json_coder->decode ($_[0]) }
		269
		270	=item cf::lock_wait $string
		271
		272	Wait until the given lock is available. See cf::lock_acquire.
		273
		274	=item my $lock = cf::lock_acquire $string
		275
		276	Wait until the given lock is available and then acquires it and returns
		277	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		278	for example when the coroutine gets canceled), the lock is automatically
		279	returned.
		280
		281	Locks are *not* recursive, locking from the same coro twice results in a
		282	deadlocked coro.
		283
		284	Lock names should begin with a unique identifier (for example, cf::map::find
		285	uses map_find and cf::map::load uses map_load).
		286
		287	=item $locked = cf::lock_active $string
		288
		289	Return true if the lock is currently active, i.e. somebody has locked it.
		290
		291	=cut
		292
		293	our %LOCK;
		294	our %LOCKER;#d#
		295
		296	sub lock_wait($) {
		297	my ($key) = @_;
		298
		299	if ($LOCKER{$key} == $Coro::current) {#d#
		300	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		301	return;#d#
		302	}#d#
		303
		304	# wait for lock, if any
		305	while ($LOCK{$key}) {
		306	push @{ $LOCK{$key} }, $Coro::current;
		307	Coro::schedule;
		308	}
184	}	309	}
		310
		311	sub lock_acquire($) {
		312	my ($key) = @_;
		313
		314	# wait, to be sure we are not locked
		315	lock_wait $key;
		316
		317	$LOCK{$key} = [];
		318	$LOCKER{$key} = $Coro::current;#d#
		319
		320	Coro::guard {
		321	delete $LOCKER{$key};#d#
		322	# wake up all waiters, to be on the safe side
		323	$_->ready for @{ delete $LOCK{$key} };
		324	}
		325	}
		326
		327	sub lock_active($) {
		328	my ($key) = @_;
		329
		330	! ! $LOCK{$key}
		331	}
		332
		333	sub freeze_mainloop {
		334	return unless $TICK_WATCHER->is_active;
		335
		336	my $guard = Coro::guard {
		337	$TICK_WATCHER->start;
		338	};
		339	$TICK_WATCHER->stop;
		340	$guard
		341	}
		342
		343	=item cf::periodic $interval, $cb
		344
		345	Like EV::periodic, but randomly selects a starting point so that the actions
		346	get spread over timer.
		347
		348	=cut
		349
		350	sub periodic($$) {
		351	my ($interval, $cb) = @_;
		352
		353	my $start = rand List::Util::min 180, $interval;
		354
		355	EV::periodic $start, $interval, 0, $cb
		356	}
		357
		358	=item cf::get_slot $time[, $priority[, $name]]
		359
		360	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		361	This call blocks and returns only when you have at least C<$time> seconds
		362	of cpu time till the next tick. The slot is only valid till the next cede.
		363
		364	The optional C<$name> can be used to identify the job to run. It might be
		365	used for statistical purposes and should identify the same time-class.
		366
		367	Useful for short background jobs.
		368
		369	=cut
		370
		371	our @SLOT_QUEUE;
		372	our $SLOT_QUEUE;
		373
		374	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		375	$SLOT_QUEUE = Coro::async {
		376	$Coro::current->desc ("timeslot manager");
		377
		378	my $signal = new Coro::Signal;
		379
		380	while () {
		381	next_job:
		382	my $avail = cf::till_tick;
		383	if ($avail > 0.01) {
		384	for (0 .. $#SLOT_QUEUE) {
		385	if ($SLOT_QUEUE[$_][0] < $avail) {
		386	my $job = splice @SLOT_QUEUE, $_, 1, ();
		387	$job->[2]->send;
		388	Coro::cede;
		389	goto next_job;
		390	}
		391	}
		392	}
		393
		394	if (@SLOT_QUEUE) {
		395	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		396	push @cf::WAIT_FOR_TICK, $signal;
		397	$signal->wait;
		398	} else {
		399	Coro::schedule;
		400	}
		401	}
		402	};
		403
		404	sub get_slot($;$$) {
		405	my ($time, $pri, $name) = @_;
		406
		407	$time = $TICK * .6 if $time > $TICK * .6;
		408	my $sig = new Coro::Signal;
		409
		410	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		411	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		412	$SLOT_QUEUE->ready;
		413	$sig->wait;
		414	}
		415
		416	=item cf::async { BLOCK }
		417
		418	Currently the same as Coro::async_pool, meaning you cannot use
		419	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		420	thing you are allowed to do is call C<prio> on it.
		421
		422	=cut
		423
		424	BEGIN { *async = \&Coro::async_pool }
185		425
186	=item cf::sync_job { BLOCK }	426	=item cf::sync_job { BLOCK }
187		427
188	The design of crossfire+ requires that the main coro ($Coro::main) is	428	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	429	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	430	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		431	acceptable.
191		432
192	If it must be done, put the blocking parts into C<sync_job>. This will run	433	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	434	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	435	server will be frozen during this time, so the block should either finish
195	fast or be very important.	436	fast or be very important.
…		…
198		439
199	sub sync_job(&) {	440	sub sync_job(&) {
200	my ($job) = @_;	441	my ($job) = @_;
201		442
202	if ($Coro::current == $Coro::main) {	443	if ($Coro::current == $Coro::main) {
		444	my $time = EV::time;
		445
203	# this is the main coro, too bad, we have to block	446	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	447	# till the operation succeeds, freezing the server :/
205		448
		449	LOG llevError, Carp::longmess "sync job";#d#
		450
206	# TODO: use suspend/resume instead	451	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	452	# (but this is cancel-safe)
208	local $FREEZE = 1;	453	my $freeze_guard = freeze_mainloop;
209		454
210	my $busy = 1;	455	my $busy = 1;
211	my @res;	456	my @res;
212		457
213	(Coro::async {	458	(async {
		459	$Coro::current->desc ("sync job coro");
214	@res = eval { $job->() };	460	@res = eval { $job->() };
215	warn $@ if $@;	461	warn $@ if $@;
216	undef $busy;	462	undef $busy;
217	})->prio (Coro::PRIO_MAX);	463	})->prio (Coro::PRIO_MAX);
218		464
219	while ($busy) {	465	while ($busy) {
		466	if (Coro::nready) {
220	Coro::cede_notself;	467	Coro::cede_notself;
221	Event::one_event unless Coro::nready;	468	} else {
		469	EV::loop EV::LOOP_ONESHOT;
222	}	470	}
		471	}
		472
		473	$time = EV::time - $time;
		474
		475	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		476	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		477
		478	$tick_start += $time; # do not account sync jobs to server load
223		479
224	wantarray ? @res : $res[0]	480	wantarray ? @res : $res[0]
225	} else {	481	} else {
226	# we are in another coroutine, how wonderful, everything just works	482	# we are in another coroutine, how wonderful, everything just works
227		483
228	$job->()	484	$job->()
229	}	485	}
230	}	486	}
231		487
232	=item $coro = cf::coro { BLOCK }	488	=item $coro = cf::async_ext { BLOCK }
233		489
234	Creates and returns a new coro. This coro is automcatially being canceled	490	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	491	extension calling this is being unloaded.
236		492
237	=cut	493	=cut
238		494
239	sub coro(&) {	495	sub async_ext(&) {
240	my $cb = shift;	496	my $cb = shift;
241		497
242	my $coro; $coro = async {	498	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		499
249	$coro->on_destroy (sub {	500	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	501	delete $EXT_CORO{$coro+0};
251	});	502	});
252	$EXT_CORO{$coro+0} = $coro;	503	$EXT_CORO{$coro+0} = $coro;
253		504
254	$coro	505	$coro
255	}	506	}
256		507
257	sub write_runtime {	508	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		509
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	510	Executes the given code block with the given arguments in a seperate
261	or return;	511	process, returning the results. Everything must be serialisable with
		512	Coro::Storable. May, of course, block. Note that the executed sub may
		513	never block itself or use any form of event handling.
262		514
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	515	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		516
267	aio_fsync $fh	517	sub fork_call(&@) {
268	and return;	518	my ($cb, @args) = @_;
269		519
270	close $fh	520	# we seemingly have to make a local copy of the whole thing,
271	or return;	521	# otherwise perl prematurely frees the stuff :/
		522	# TODO: investigate and fix (likely this will be rather laborious)
272		523
273	aio_rename "$runtime~", $runtime	524	my @res = Coro::Util::fork_eval {
274	and return;	525	reset_signals;
		526	&$cb
		527	}, @args;
275		528
		529	wantarray ? @res : $res[-1]
		530	}
		531
		532	=item $value = cf::db_get $family => $key
		533
		534	Returns a single value from the environment database.
		535
		536	=item cf::db_put $family => $key => $value
		537
		538	Stores the given C<$value> in the family. It can currently store binary
		539	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		540
		541	=item $db = cf::db_table "name"
		542
		543	Create and/or open a new database table. The string must not be "db" and must be unique
		544	within each server.
		545
		546	=cut
		547
		548	sub db_table($) {
		549	my ($name) = @_;
		550	my $db = BDB::db_create $DB_ENV;
		551
		552	eval {
		553	$db->set_flags (BDB::CHKSUM);
		554
		555	utf8::encode $name;
		556	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		557	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		558	cf::cleanup "db_open(db): $!" if $!;
		559	};
		560	cf::cleanup "db_open(db): $@" if $@;
		561
		562	$db
		563	}
		564
		565	our $DB;
		566
		567	sub db_init {
		568	cf::sync_job {
		569	$DB ||= db_table "db";
		570	};
		571	}
		572
		573	sub db_get($$) {
		574	my $key = "$_[0]/$_[1]";
		575
		576	cf::sync_job {
		577	BDB::db_get $DB, undef, $key, my $data;
		578
		579	$! ? ()
		580	: $data
276	1	581	}
		582	}
		583
		584	sub db_put($$$) {
		585	BDB::dbreq_pri 4;
		586	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		587	}
		588
		589	=item cf::cache $id => [$paths...], $processversion => $process
		590
		591	Generic caching function that returns the value of the resource $id,
		592	caching and regenerating as required.
		593
		594	This function can block.
		595
		596	=cut
		597
		598	sub cache {
		599	my ($id, $src, $processversion, $process) = @_;
		600
		601	my $meta =
		602	join "\x00",
		603	$processversion,
		604	map {
		605	aio_stat $_
		606	and Carp::croak "$_: $!";
		607
		608	($_, (stat _)[7,9])
		609	} @$src;
		610
		611	my $dbmeta = db_get cache => "$id/meta";
		612	if ($dbmeta ne $meta) {
		613	# changed, we may need to process
		614
		615	my @data;
		616	my $md5;
		617
		618	for (0 .. $#$src) {
		619	0 <= aio_load $src->[$_], $data[$_]
		620	or Carp::croak "$src->[$_]: $!";
		621	}
		622
		623	# if processing is expensive, check
		624	# checksum first
		625	if (1) {
		626	$md5 =
		627	join "\x00",
		628	$processversion,
		629	map {
		630	cf::cede_to_tick;
		631	($src->[$_], Digest::MD5::md5_hex $data[$_])
		632	} 0.. $#$src;
		633
		634
		635	my $dbmd5 = db_get cache => "$id/md5";
		636	if ($dbmd5 eq $md5) {
		637	db_put cache => "$id/meta", $meta;
		638
		639	return db_get cache => "$id/data";
		640	}
		641	}
		642
		643	my $t1 = Time::HiRes::time;
		644	my $data = $process->(\@data);
		645	my $t2 = Time::HiRes::time;
		646
		647	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		648
		649	db_put cache => "$id/data", $data;
		650	db_put cache => "$id/md5" , $md5;
		651	db_put cache => "$id/meta", $meta;
		652
		653	return $data;
		654	}
		655
		656	db_get cache => "$id/data"
		657	}
		658
		659	=item cf::datalog type => key => value, ...
		660
		661	Log a datalog packet of the given type with the given key-value pairs.
		662
		663	=cut
		664
		665	sub datalog($@) {
		666	my ($type, %kv) = @_;
		667	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	668	}
278		669
279	=back	670	=back
280		671
281	=cut	672	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($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		673
393	#############################################################################	674	#############################################################################
394		675
395	=head2 ATTACHABLE OBJECTS	676	=head2 ATTACHABLE OBJECTS
396		677
…		…
398	attach callbacks/event handlers (a collection of which is called an "attachment")	679	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	680	to it. All such attachable objects support the following methods.
400		681
401	In the following description, CLASS can be any of C<global>, C<object>	682	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	683	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	684	Deliantra).
404		685
405	=over 4	686	=over 4
406		687
407	=item $attachable->attach ($attachment, key => $value...)	688	=item $attachable->attach ($attachment, key => $value...)
408		689
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	803	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	804	our @CB_MAP = ();
524		805
525	my %attachment;	806	my %attachment;
526		807
		808	sub cf::attachable::thawer_merge {
		809	# simply override everything except _meta
		810	local $_[0]{_meta};
		811	%{$_[0]} = %{$_[1]};
		812	}
		813
527	sub _attach_cb($$$$) {	814	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	815	my ($registry, $event, $prio, $cb) = @_;
529		816
530	use sort 'stable';	817	use sort 'stable';
531		818
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	852	$registry = $CB_TYPE[$object_type] ||= [];
566		853
567	} elsif ($type eq "subtype") {	854	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	855	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	856	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	857	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		858
572	} elsif ($type eq "package") {	859	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	860	my $pkg = shift @arg;
574		861
575	while (my ($name, $id) = each %cb_id) {	862	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	891	_attach $registry, $klass, @attach;
605	}	892	}
606		893
607	$obj->{$name} = \%arg;	894	$obj->{$name} = \%arg;
608	} else {	895	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	896	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	897	}
611		898
612	$obj->{_attachment}{$name} = undef;	899	$obj->{_attachment}{$name} = undef;
613	}	900	}
614		901
…		…
616	if (ref $_[0]) {	903	if (ref $_[0]) {
617	_object_attach @_;	904	_object_attach @_;
618	} else {	905	} else {
619	_attach shift->_attach_registry, @_;	906	_attach shift->_attach_registry, @_;
620	}	907	}
		908	_recalc_want;
621	};	909	};
622		910
623	# all those should be optimised	911	# all those should be optimised
624	sub cf::attachable::detach {	912	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	913	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	916	delete $obj->{_attachment}{$name};
629	reattach ($obj);	917	reattach ($obj);
630	} else {	918	} else {
631	Carp::croak "cannot, currently, detach class attachments";	919	Carp::croak "cannot, currently, detach class attachments";
632	}	920	}
		921	_recalc_want;
633	};	922	};
634		923
635	sub cf::attachable::attached {	924	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	925	my ($obj, $name) = @_;
637		926
…		…
652	";	941	";
653	die if $@;	942	die if $@;
654	}	943	}
655		944
656	our $override;	945	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	946	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		947
659	sub override {	948	sub override {
660	$override = 1;	949	$override = 1;
661	@invoke_results = ();	950	@INVOKE_RESULTS = (@_);
662	}	951	}
663		952
664	sub do_invoke {	953	sub do_invoke {
665	my $event = shift;	954	my $event = shift;
666	my $callbacks = shift;	955	my $callbacks = shift;
667		956
668	@invoke_results = ();	957	@INVOKE_RESULTS = ();
669		958
670	local $override;	959	local $override;
671		960
672	for (@$callbacks) {	961	for (@$callbacks) {
673	eval { &{$_->[1]} };	962	eval { &{$_->[1]} };
…		…
682	}	971	}
683		972
684	0	973	0
685	}	974	}
686		975
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	976	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		977
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	978	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		979
691	Generate an object-specific event with the given arguments.	980	Generate an object-specific event with the given arguments.
692		981
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	982	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	983	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	984	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		985
697	=back	986	=back
698		987
699	=cut	988	=cut
700		989
701	#############################################################################	990	#############################################################################
702	# object support	991	# object support
		992
		993	sub _object_equal($$);
		994	sub _object_equal($$) {
		995	my ($a, $b) = @_;
		996
		997	return 0 unless (ref $a) eq (ref $b);
		998
		999	if ("HASH" eq ref $a) {
		1000	my @ka = keys %$a;
		1001	my @kb = keys %$b;
		1002
		1003	return 0 if @ka != @kb;
		1004
		1005	for (0 .. $#ka) {
		1006	return 0 unless $ka[$_] eq $kb[$_];
		1007	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1008	}
		1009
		1010	} elsif ("ARRAY" eq ref $a) {
		1011
		1012	return 0 if @$a != @$b;
		1013
		1014	for (0 .. $#$a) {
		1015	return 0 unless _object_equal $a->[$_], $b->[$_];
		1016	}
		1017
		1018	} elsif ($a ne $b) {
		1019	return 0;
		1020	}
		1021
		1022	1
		1023	}
		1024
		1025	our $SLOW_MERGES;#d#
		1026	sub _can_merge {
		1027	my ($ob1, $ob2) = @_;
		1028
		1029	++$SLOW_MERGES;#d#
		1030
		1031	# we do the slow way here
		1032	return _object_equal $ob1, $ob2
		1033	}
703		1034
704	sub reattach {	1035	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1036	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1037	my ($obj) = @_;
		1038
		1039	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		1040
708	my $registry = $obj->registry;	1041	my $registry = $obj->registry;
709		1042
710	@$registry = ();	1043	@$registry = ();
711		1044
…		…
726	cf::attachable->attach (	1059	cf::attachable->attach (
727	prio => -1000000,	1060	prio => -1000000,
728	on_instantiate => sub {	1061	on_instantiate => sub {
729	my ($obj, $data) = @_;	1062	my ($obj, $data) = @_;
730		1063
731	$data = from_json $data;	1064	$data = decode_json $data;
732		1065
733	for (@$data) {	1066	for (@$data) {
734	my ($name, $args) = @$_;	1067	my ($name, $args) = @$_;
735		1068
736	$obj->attach ($name, %{$args || {} });	1069	$obj->attach ($name, %{$args || {} });
…		…
752	sub object_freezer_save {	1085	sub object_freezer_save {
753	my ($filename, $rdata, $objs) = @_;	1086	my ($filename, $rdata, $objs) = @_;
754		1087
755	sync_job {	1088	sync_job {
756	if (length $$rdata) {	1089	if (length $$rdata) {
		1090	utf8::decode (my $decname = $filename);
757	warn sprintf "saving %s (%d,%d)\n",	1091	warn sprintf "saving %s (%d,%d)\n",
758	$filename, length $$rdata, scalar @$objs;	1092	$decname, length $$rdata, scalar @$objs;
759		1093
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1094	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	1095	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1096	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	1097	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	1098	close $fh;
765		1099
766	if (@$objs) {	1100	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1101	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	1102	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	1103	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	1104	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	1105	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	1106	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	1107	aio_rename "$filename.pst~", "$filename.pst";
774	}	1108	}
775	} else {	1109	} else {
776	aio_unlink "$filename.pst";	1110	aio_unlink "$filename.pst";
…		…
782	}	1116	}
783	} else {	1117	} else {
784	aio_unlink $filename;	1118	aio_unlink $filename;
785	aio_unlink "$filename.pst";	1119	aio_unlink "$filename.pst";
786	}	1120	}
787	}	1121	};
788	}	1122	}
789		1123
790	sub object_freezer_as_string {	1124	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1125	my ($rdata, $objs) = @_;
792		1126
…		…
804	or return;	1138	or return;
805		1139
806	unless (aio_stat "$filename.pst") {	1140	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	1141	(aio_load "$filename.pst", $av) >= 0
808	or return;	1142	or return;
		1143
809	$av = eval { (Storable::thaw $av)->{objs} };	1144	my $st = eval { Coro::Storable::thaw $av };
		1145	$av = $st->{objs};
810	}	1146	}
811		1147
		1148	utf8::decode (my $decname = $filename);
		1149	warn sprintf "loading %s (%d,%d)\n",
		1150	$decname, length $data, scalar @{$av || []};
		1151
812	return ($data, $av);	1152	($data, $av)
813	}	1153	}
		1154
		1155	=head2 COMMAND CALLBACKS
		1156
		1157	=over 4
		1158
		1159	=cut
814		1160
815	#############################################################################	1161	#############################################################################
816	# command handling &c	1162	# command handling &c
817		1163
818	=item cf::register_command $name => \&callback($ob,$args);	1164	=item cf::register_command $name => \&callback($ob,$args);
…		…
831	push @{ $COMMAND{$name} }, [$caller, $cb];	1177	push @{ $COMMAND{$name} }, [$caller, $cb];
832	}	1178	}
833		1179
834	=item cf::register_extcmd $name => \&callback($pl,$packet);	1180	=item cf::register_extcmd $name => \&callback($pl,$packet);
835		1181
836	Register a callbackf ro execution when the client sends an extcmd packet.	1182	Register a callback for execution when the client sends an (synchronous)
		1183	extcmd packet. Ext commands will be processed in the order they are
		1184	received by the server, like other user commands. The first argument is
		1185	the logged-in player. Ext commands can only be processed after a player
		1186	has logged in successfully.
837		1187
838	If the callback returns something, it is sent back as if reply was being	1188	If the callback returns something, it is sent back as if reply was being
839	called.	1189	called.
840		1190
		1191	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1192
		1193	Register a callback for execution when the client sends an (asynchronous)
		1194	exticmd packet. Exti commands are processed by the server as soon as they
		1195	are received, i.e. out of order w.r.t. other commands. The first argument
		1196	is a client socket. Exti commands can be received anytime, even before
		1197	log-in.
		1198
		1199	If the callback returns something, it is sent back as if reply was being
		1200	called.
		1201
841	=cut	1202	=cut
842		1203
843	sub register_extcmd {	1204	sub register_extcmd {
844	my ($name, $cb) = @_;	1205	my ($name, $cb) = @_;
845		1206
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	1207	$EXTCMD{$name} = $cb;
		1208	}
		1209
		1210	sub register_exticmd {
		1211	my ($name, $cb) = @_;
		1212
		1213	$EXTICMD{$name} = $cb;
850	}	1214	}
851		1215
852	cf::player->attach (	1216	cf::player->attach (
853	on_command => sub {	1217	on_command => sub {
854	my ($pl, $name, $params) = @_;	1218	my ($pl, $name, $params) = @_;
…		…
863	cf::override;	1227	cf::override;
864	},	1228	},
865	on_extcmd => sub {	1229	on_extcmd => sub {
866	my ($pl, $buf) = @_;	1230	my ($pl, $buf) = @_;
867		1231
868	my $msg = eval { from_json $buf };	1232	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
869		1233
870	if (ref $msg) {	1234	if (ref $msg) {
		1235	my ($type, $reply, @payload) =
		1236	"ARRAY" eq ref $msg
		1237	? @$msg
		1238	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1239
		1240	my @reply;
		1241
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1242	if (my $cb = $EXTCMD{$type}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	1243	@reply = $cb->($pl, @payload);
873	$pl->ext_reply ($msg->{msgid}, %reply);
874	}
875	}	1244	}
		1245
		1246	$pl->ext_reply ($reply, @reply)
		1247	if $reply;
		1248
876	} else {	1249	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1250	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
878	}	1251	}
879		1252
880	cf::override;	1253	cf::override;
881	},	1254	},
882	);	1255	);
883		1256
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	1257	sub load_extensions {
		1258	cf::sync_job {
		1259	my %todo;
		1260
		1261	for my $path (<$LIBDIR/*.ext>) {
		1262	next unless -r $path;
		1263
		1264	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1265	my $base = $1;
		1266	my $pkg = $1;
		1267	$pkg =~ s/[^[:word:]]/_/g;
		1268	$pkg = "ext::$pkg";
		1269
		1270	open my $fh, "<:utf8", $path
		1271	or die "$path: $!";
		1272
		1273	my $source = do { local $/; <$fh> };
		1274
		1275	my %ext = (
		1276	path => $path,
		1277	base => $base,
		1278	pkg => $pkg,
		1279	);
		1280
		1281	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1282	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1283
		1284	$ext{source} =
		1285	"package $pkg; use strict; use utf8;\n"
		1286	. "#line 1 \"$path\"\n{\n"
		1287	. $source
		1288	. "\n};\n1";
		1289
		1290	$todo{$base} = \%ext;
		1291	}
		1292
		1293	my %done;
		1294	while (%todo) {
		1295	my $progress;
		1296
		1297	while (my ($k, $v) = each %todo) {
		1298	for (split /,\s*/, $v->{meta}{depends}) {
		1299	goto skip
		1300	unless exists $done{$_};
		1301	}
		1302
		1303	warn "... loading '$k' into '$v->{pkg}'\n";
		1304
		1305	unless (eval $v->{source}) {
		1306	my $msg = $@ ? "$v->{path}: $@\n"
		1307	: "$v->{base}: extension inactive.\n";
		1308
		1309	if (exists $v->{meta}{mandatory}) {
		1310	warn $msg;
		1311	warn "mandatory extension failed to load, exiting.\n";
		1312	exit 1;
		1313	}
		1314
		1315	warn $msg;
		1316	}
		1317
		1318	$done{$k} = delete $todo{$k};
		1319	push @EXTS, $v->{pkg};
		1320	$progress = 1;
		1321	}
		1322
		1323	skip:
		1324	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1325	unless $progress;
		1326	}
		1327	};
		1328	}
		1329
		1330	#############################################################################
		1331
		1332	=back
		1333
		1334	=head2 CORE EXTENSIONS
		1335
		1336	Functions and methods that extend core crossfire objects.
		1337
		1338	=cut
		1339
		1340	package cf::player;
		1341
		1342	use Coro::AIO;
		1343
		1344	=head3 cf::player
		1345
		1346	=over 4
		1347
		1348	=item cf::player::num_playing
		1349
		1350	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1351
		1352	=cut
		1353
		1354	sub num_playing {
		1355	scalar grep
		1356	$_->ob->map
		1357	&& !$_->hidden
		1358	&& !$_->ob->flag (cf::FLAG_WIZ),
		1359	cf::player::list
		1360	}
		1361
		1362	=item cf::player::find $login
		1363
		1364	Returns the given player object, loading it if necessary (might block).
		1365
		1366	=cut
		1367
		1368	sub playerdir($) {
		1369	"$PLAYERDIR/"
		1370	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1371	}
		1372
		1373	sub path($) {
		1374	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1375
		1376	(playerdir $login) . "/playerdata"
		1377	}
		1378
		1379	sub find_active($) {
		1380	$cf::PLAYER{$_[0]}
		1381	and $cf::PLAYER{$_[0]}->active
		1382	and $cf::PLAYER{$_[0]}
		1383	}
		1384
		1385	sub exists($) {
		1386	my ($login) = @_;
		1387
		1388	$cf::PLAYER{$login}
		1389	or cf::sync_job { !aio_stat path $login }
		1390	}
		1391
		1392	sub find($) {
		1393	return $cf::PLAYER{$_[0]} || do {
		1394	my $login = $_[0];
		1395
		1396	my $guard = cf::lock_acquire "user_find:$login";
		1397
		1398	$cf::PLAYER{$_[0]} || do {
		1399	# rename old playerfiles to new ones
		1400	#TODO: remove when no longer required
		1401	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1402	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1403	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1404	aio_unlink +(playerdir $login) . "/$login.pl";
		1405
		1406	my $f = new_from_file cf::object::thawer path $login
		1407	or return;
		1408
		1409	my $pl = cf::player::load_pl $f
		1410	or return;
		1411	local $cf::PLAYER_LOADING{$login} = $pl;
		1412	$f->resolve_delayed_derefs;
		1413	$cf::PLAYER{$login} = $pl
		1414	}
		1415	}
		1416	}
		1417
		1418	sub save($) {
		1419	my ($pl) = @_;
		1420
		1421	return if $pl->{deny_save};
		1422
		1423	my $path = path $pl;
		1424	my $guard = cf::lock_acquire "user_save:$path";
		1425
		1426	return if $pl->{deny_save};
		1427
		1428	aio_mkdir playerdir $pl, 0770;
		1429	$pl->{last_save} = $cf::RUNTIME;
		1430
		1431	$pl->save_pl ($path);
		1432	cf::cede_to_tick;
		1433	}
		1434
		1435	sub new($) {
		1436	my ($login) = @_;
		1437
		1438	my $self = create;
		1439
		1440	$self->ob->name ($login);
		1441	$self->{deny_save} = 1;
		1442
		1443	$cf::PLAYER{$login} = $self;
		1444
		1445	$self
		1446	}
		1447
		1448	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1449
		1450	=cut
		1451
		1452	sub send_msg {
		1453	my $ns = shift->ns
		1454	or return;
		1455	$ns->send_msg (@_);
		1456	}
		1457
		1458	=item $pl->quit_character
		1459
		1460	Nukes the player without looking back. If logged in, the connection will
		1461	be destroyed. May block for a long time.
		1462
		1463	=cut
		1464
		1465	sub quit_character {
		1466	my ($pl) = @_;
		1467
		1468	my $name = $pl->ob->name;
		1469
		1470	$pl->{deny_save} = 1;
		1471	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1472
		1473	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1474	$pl->deactivate;
		1475	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1476	$pl->ns->destroy if $pl->ns;
		1477
		1478	my $path = playerdir $pl;
		1479	my $temp = "$path~$cf::RUNTIME~deleting~";
		1480	aio_rename $path, $temp;
		1481	delete $cf::PLAYER{$pl->ob->name};
		1482	$pl->destroy;
		1483
		1484	my $prefix = qr<^~\Q$name\E/>;
		1485
		1486	# nuke player maps
		1487	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1488
		1489	IO::AIO::aio_rmtree $temp;
		1490	}
		1491
		1492	=item $pl->kick
		1493
		1494	Kicks a player out of the game. This destroys the connection.
		1495
		1496	=cut
		1497
		1498	sub kick {
		1499	my ($pl, $kicker) = @_;
		1500
		1501	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1502	$pl->killer ("kicked");
		1503	$pl->ns->destroy;
		1504	}
		1505
		1506	=item cf::player::list_logins
		1507
		1508	Returns am arrayref of all valid playernames in the system, can take a
		1509	while and may block, so not sync_job-capable, ever.
		1510
		1511	=cut
		1512
		1513	sub list_logins {
		1514	my $dirs = aio_readdir $PLAYERDIR
		1515	or return [];
		1516
		1517	my @logins;
		1518
		1519	for my $login (@$dirs) {
		1520	my $path = path $login;
		1521
		1522	# a .pst is a dead give-away for a valid player
		1523	unless (-e "$path.pst") {
		1524	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1525	aio_read $fh, 0, 512, my $buf, 0 or next;
		1526	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1527	}
		1528
		1529	utf8::decode $login;
		1530	push @logins, $login;
		1531	}
		1532
		1533	\@logins
		1534	}
		1535
		1536	=item $player->maps
		1537
		1538	Returns an arrayref of map paths that are private for this
		1539	player. May block.
		1540
		1541	=cut
		1542
		1543	sub maps($) {
		1544	my ($pl) = @_;
		1545
		1546	$pl = ref $pl ? $pl->ob->name : $pl;
		1547
		1548	my $files = aio_readdir playerdir $pl
		1549	or return;
		1550
		1551	my @paths;
		1552
		1553	for (@$files) {
		1554	utf8::decode $_;
		1555	next if /\.(?:pl|pst)$/;
		1556	next unless /^$PATH_SEP/o;
		1557
		1558	push @paths, cf::map::normalise "~$pl/$_";
		1559	}
		1560
		1561	\@paths
		1562	}
		1563
		1564	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1565
		1566	Expand crossfire pod fragments into protocol xml.
		1567
		1568	=cut
		1569
		1570	use re 'eval';
		1571
		1572	my $group;
		1573	my $interior; $interior = qr{
		1574	# match a pod interior sequence sans C<< >>
		1575	(?:
		1576	\ (.*?)\ (?{ $group = $^N })
		1577	| < (??{$interior}) >
		1578	)
		1579	}x;
		1580
		1581	sub expand_cfpod {
		1582	my ($self, $pod) = @_;
		1583
		1584	my $xml;
		1585
		1586	while () {
		1587	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1588	$group = $1;
		1589
		1590	$group =~ s/&/&amp;/g;
		1591	$group =~ s/</&lt;/g;
		1592
		1593	$xml .= $group;
		1594	} elsif ($pod =~ m%\G
		1595	([BCGHITU])
		1596	<
		1597	(?:
		1598	([^<>]*) (?{ $group = $^N })
		1599	| < $interior >
		1600	)
		1601	>
		1602	%gcsx
		1603	) {
		1604	my ($code, $data) = ($1, $group);
		1605
		1606	if ($code eq "B") {
		1607	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1608	} elsif ($code eq "I") {
		1609	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1610	} elsif ($code eq "U") {
		1611	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1612	} elsif ($code eq "C") {
		1613	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1614	} elsif ($code eq "T") {
		1615	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1616	} elsif ($code eq "G") {
		1617	my ($male, $female) = split /\|/, $data;
		1618	$data = $self->gender ? $female : $male;
		1619	$xml .= expand_cfpod ($self, $data);
		1620	} elsif ($code eq "H") {
		1621	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1622	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1623	"")
		1624	[$self->{hintmode}];
		1625	} else {
		1626	$xml .= "error processing '$code($data)' directive";
		1627	}
		1628	} else {
		1629	if ($pod =~ /\G(.+)/) {
		1630	warn "parse error while expanding $pod (at $1)";
		1631	}
		1632	last;
		1633	}
		1634	}
		1635
		1636	for ($xml) {
		1637	# create single paragraphs (very hackish)
		1638	s/(?<=\S)\n(?=\w)/ /g;
		1639
		1640	# compress some whitespace
		1641	s/\s+\n/\n/g; # ws line-ends
		1642	s/\n\n+/\n/g; # double lines
		1643	s/^\n+//; # beginning lines
		1644	s/\n+$//; # ending lines
		1645	}
		1646
		1647	$xml
		1648	}
		1649
		1650	no re 'eval';
		1651
		1652	sub hintmode {
		1653	$_[0]{hintmode} = $_[1] if @_ > 1;
		1654	$_[0]{hintmode}
		1655	}
		1656
		1657	=item $player->ext_reply ($msgid, @msg)
		1658
		1659	Sends an ext reply to the player.
		1660
		1661	=cut
		1662
		1663	sub ext_reply($$@) {
		1664	my ($self, $id, @msg) = @_;
		1665
		1666	$self->ns->ext_reply ($id, @msg)
		1667	}
		1668
		1669	=item $player->ext_msg ($type, @msg)
		1670
		1671	Sends an ext event to the client.
		1672
		1673	=cut
		1674
		1675	sub ext_msg($$@) {
		1676	my ($self, $type, @msg) = @_;
		1677
		1678	$self->ns->ext_msg ($type, @msg);
		1679	}
		1680
		1681	=head3 cf::region
		1682
		1683	=over 4
		1684
		1685	=cut
		1686
		1687	package cf::region;
		1688
		1689	=item cf::region::find_by_path $path
		1690
		1691	Tries to decuce the likely region for a map knowing only its path.
		1692
		1693	=cut
		1694
		1695	sub find_by_path($) {
891	my ($path) = @_;	1696	my ($path) = @_;
892		1697
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1698	my ($match, $specificity);
894	my $base = $1;
895	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";
898		1699
899	warn "loading '$path' into '$pkg'\n";	1700	for my $region (list) {
900		1701	if ($region->{match} && $path =~ $region->{match}) {
901	open my $fh, "<:utf8", $path	1702	($match, $specificity) = ($region, $region->specificity)
902	or die "$path: $!";	1703	if $region->specificity > $specificity;
903		1704	}
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	# }	1705	}
933		1706
934	# remove commands	1707	$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	}	1708	}
1040		1709
1041	=back	1710	=back
1042
1043		1711
1044	=head3 cf::map	1712	=head3 cf::map
1045		1713
1046	=over 4	1714	=over 4
1047		1715
…		…
1050	package cf::map;	1718	package cf::map;
1051		1719
1052	use Fcntl;	1720	use Fcntl;
1053	use Coro::AIO;	1721	use Coro::AIO;
1054		1722
		1723	use overload
		1724	'""' => \&as_string,
		1725	fallback => 1;
		1726
1055	our $MAX_RESET = 7200;	1727	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1728	our $DEFAULT_RESET = 3000;
1057		1729
1058	sub generate_random_map {	1730	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1731	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1732	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1733	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1734	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1735	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1736	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1737	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1738	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1739	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1740	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1741	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1742	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1743	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1744	(cf::region::find $rmp->{region}), $rmp->{custom}
		1745	)
		1746	}
		1747
		1748	=item cf::map->register ($regex, $prio)
		1749
		1750	Register a handler for the map path matching the given regex at the
		1751	givne priority (higher is better, built-in handlers have priority 0, the
		1752	default).
		1753
		1754	=cut
		1755
		1756	sub register {
		1757	my (undef, $regex, $prio) = @_;
		1758	my $pkg = caller;
		1759
		1760	no strict;
		1761	push @{"$pkg\::ISA"}, __PACKAGE__;
		1762
		1763	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1764	}
		1765
		1766	# also paths starting with '/'
		1767	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1768
		1769	sub thawer_merge {
		1770	my ($self, $merge) = @_;
		1771
		1772	# we have to keep some variables in memory intact
		1773	local $self->{path};
		1774	local $self->{load_path};
		1775
		1776	$self->SUPER::thawer_merge ($merge);
		1777	}
		1778
		1779	sub normalise {
		1780	my ($path, $base) = @_;
		1781
		1782	$path = "$path"; # make sure its a string
		1783
		1784	$path =~ s/\.map$//;
		1785
		1786	# map plan:
		1787	#
		1788	# /! non-realised random map exit (special hack!)
		1789	# {... are special paths that are not being touched
		1790	# ?xxx/... are special absolute paths
		1791	# ?random/... random maps
		1792	# /... normal maps
		1793	# ~user/... per-player map of a specific user
		1794
		1795	$path =~ s/$PATH_SEP/\//go;
		1796
		1797	# treat it as relative path if it starts with
		1798	# something that looks reasonable
		1799	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1800	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1801
		1802	$base =~ s{[^/]+/?$}{};
		1803	$path = "$base/$path";
		1804	}
		1805
		1806	for ($path) {
		1807	redo if s{//}{/};
		1808	redo if s{/\.?/}{/};
		1809	redo if s{/[^/]+/\.\./}{/};
		1810	}
		1811
		1812	$path
		1813	}
		1814
		1815	sub new_from_path {
		1816	my (undef, $path, $base) = @_;
		1817
		1818	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1819
		1820	$path = normalise $path, $base;
		1821
		1822	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1823	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1824	my $self = bless cf::map::new, $pkg;
		1825	$self->{path} = $path; $self->path ($path);
		1826	$self->init; # pass $1 etc.
		1827	return $self;
		1828	}
		1829	}
		1830
		1831	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1832	()
		1833	}
		1834
		1835	sub init {
		1836	my ($self) = @_;
		1837
		1838	$self
		1839	}
		1840
		1841	sub as_string {
		1842	my ($self) = @_;
		1843
		1844	"$self->{path}"
		1845	}
		1846
		1847	# the displayed name, this is a one way mapping
		1848	sub visible_name {
		1849	&as_string
		1850	}
		1851
		1852	# the original (read-only) location
		1853	sub load_path {
		1854	my ($self) = @_;
		1855
		1856	"$MAPDIR/$self->{path}.map"
		1857	}
		1858
		1859	# the temporary/swap location
		1860	sub save_path {
		1861	my ($self) = @_;
		1862
		1863	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1864	"$TMPDIR/$path.map"
		1865	}
		1866
		1867	# the unique path, undef == no special unique path
		1868	sub uniq_path {
		1869	my ($self) = @_;
		1870
		1871	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1872	"$UNIQUEDIR/$path"
1075	}	1873	}
1076		1874
1077	# and all this just because we cannot iterate over	1875	# and all this just because we cannot iterate over
1078	# all maps in C++...	1876	# all maps in C++...
1079	sub change_all_map_light {	1877	sub change_all_map_light {
1080	my ($change) = @_;	1878	my ($change) = @_;
1081		1879
1082	$_->change_map_light ($change) for values %cf::MAP;	1880	$_->change_map_light ($change)
		1881	for grep $_->outdoor, values %cf::MAP;
1083	}	1882	}
1084		1883
		1884	sub decay_objects {
		1885	my ($self) = @_;
		1886
		1887	return if $self->{deny_reset};
		1888
		1889	$self->do_decay_objects;
		1890	}
		1891
		1892	sub unlink_save {
		1893	my ($self) = @_;
		1894
		1895	utf8::encode (my $save = $self->save_path);
		1896	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1897	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1898	}
		1899
1085	sub try_load_header($) {	1900	sub load_header_from($) {
1086	my ($path) = @_;	1901	my ($self, $path) = @_;
1087		1902
1088	utf8::encode $path;	1903	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1904	my $f = new_from_file cf::object::thawer $path
1090	or return;	1905	or return;
1091		1906
1092	my $map = cf::map::new	1907	$self->_load_header ($f)
1093	or return;	1908	or return;
1094		1909
1095	$map->load_header ($path)	1910	local $MAP_LOADING{$self->{path}} = $self;
		1911	$f->resolve_delayed_derefs;
		1912
		1913	$self->{load_path} = $path;
		1914
		1915	1
		1916	}
		1917
		1918	sub load_header_orig {
		1919	my ($self) = @_;
		1920
		1921	$self->load_header_from ($self->load_path)
		1922	}
		1923
		1924	sub load_header_temp {
		1925	my ($self) = @_;
		1926
		1927	$self->load_header_from ($self->save_path)
		1928	}
		1929
		1930	sub prepare_temp {
		1931	my ($self) = @_;
		1932
		1933	$self->last_access ((delete $self->{last_access})
		1934	|| $cf::RUNTIME); #d#
		1935	# safety
		1936	$self->{instantiate_time} = $cf::RUNTIME
		1937	if $self->{instantiate_time} > $cf::RUNTIME;
		1938	}
		1939
		1940	sub prepare_orig {
		1941	my ($self) = @_;
		1942
		1943	$self->{load_original} = 1;
		1944	$self->{instantiate_time} = $cf::RUNTIME;
		1945	$self->last_access ($cf::RUNTIME);
		1946	$self->instantiate;
		1947	}
		1948
		1949	sub load_header {
		1950	my ($self) = @_;
		1951
		1952	if ($self->load_header_temp) {
		1953	$self->prepare_temp;
		1954	} else {
		1955	$self->load_header_orig
1096	or return;	1956	or return;
		1957	$self->prepare_orig;
		1958	}
1097		1959
1098	$map->{load_path} = $path;	1960	$self->{deny_reset} = 1
		1961	if $self->no_reset;
1099		1962
1100	$map	1963	$self->default_region (cf::region::find_by_path $self->{path})
1101	}	1964	unless $self->default_region;
1102		1965
		1966	1
		1967	}
		1968
		1969	sub find;
1103	sub find_map {	1970	sub find {
1104	my ($path, $origin) = @_;	1971	my ($path, $origin) = @_;
1105		1972
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1973	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1974
		1975	cf::lock_wait "map_data:$path";#d#remove
		1976	cf::lock_wait "map_find:$path";
		1977
1111	$cf::MAP{$key} || do {	1978	$cf::MAP{$path} || do {
1112	# do it the slow way	1979	my $guard1 = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1980	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1114		1981
1115	if ($map) {	1982	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;	1983	or return;
1127		1984
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);	1985	$map->{last_save} = $cf::RUNTIME;
1139		1986
1140	if ($map->should_reset) {	1987	$map->load_header
		1988	or return;
		1989
		1990	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1991	# doing this can freeze the server in a sync job, obviously
		1992	#$cf::WAIT_FOR_TICK->wait;
		1993	undef $guard1;
		1994	undef $guard2;
1141	$map->reset;	1995	$map->reset;
1142	$map = find_map $path;	1996	return find $path;
1143	}	1997	}
1144		1998
1145	$cf::MAP{$key} = $map	1999	$cf::MAP{$path} = $map
1146	}	2000	}
1147	}	2001	}
		2002
		2003	sub pre_load { }
		2004	sub post_load { }
1148		2005
1149	sub load {	2006	sub load {
1150	my ($self) = @_;	2007	my ($self) = @_;
1151		2008
1152	return if $self->in_memory != cf::MAP_SWAPPED;	2009	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		2010
1156	my $path = $self->{path};	2011	my $path = $self->{path};
1157		2012
		2013	{
		2014	my $guard = cf::lock_acquire "map_data:$path";
		2015
		2016	return unless $self->valid;
		2017	return unless $self->in_memory == cf::MAP_SWAPPED;
		2018
		2019	$self->in_memory (cf::MAP_LOADING);
		2020
1158	$self->alloc;	2021	$self->alloc;
1159	$self->load_objects ($self->{load_path}, 1)	2022
		2023	$self->pre_load;
		2024	cf::cede_to_tick;
		2025
		2026	my $f = new_from_file cf::object::thawer $self->{load_path};
		2027	$f->skip_block;
		2028	$self->_load_objects ($f)
1160	or return;	2029	or return;
1161		2030
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2031	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	2032	if delete $self->{load_original};
1164		2033
1165	if (my $uniq = $path->uniq_path) {	2034	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	2035	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	2036	unless (aio_stat $uniq) {
		2037	if (my $f = new_from_file cf::object::thawer $uniq) {
1168	$self->clear_unique_items;	2038	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	2039	$self->_load_objects ($f);
		2040	$f->resolve_delayed_derefs;
		2041	}
1170	}	2042	}
1171	}	2043	}
1172		2044
		2045	$f->resolve_delayed_derefs;
		2046
		2047	cf::cede_to_tick;
1173	# now do the right thing for maps	2048	# now do the right thing for maps
1174	$self->link_multipart_objects;	2049	$self->link_multipart_objects;
1175
1176	if ($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)	2050	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	2051	unless $self->difficulty;
		2052	cf::cede_to_tick;
		2053
		2054	unless ($self->{deny_activate}) {
		2055	$self->decay_objects;
		2056	$self->fix_auto_apply;
		2057	$self->update_buttons;
		2058	cf::cede_to_tick;
		2059	$self->set_darkness_map;
		2060	cf::cede_to_tick;
1186	$self->activate;	2061	$self->activate;
1187	}	2062	}
1188		2063
		2064	$self->{last_save} = $cf::RUNTIME;
		2065	$self->last_access ($cf::RUNTIME);
		2066
1189	$self->in_memory (cf::MAP_IN_MEMORY);	2067	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	2068	}
1191		2069
1192	sub load_map_sync {	2070	$self->post_load;
		2071	}
		2072
		2073	sub customise_for {
		2074	my ($self, $ob) = @_;
		2075
		2076	return find "~" . $ob->name . "/" . $self->{path}
		2077	if $self->per_player;
		2078
		2079	# return find "?party/" . $ob->name . "/" . $self->{path}
		2080	# if $self->per_party;
		2081
		2082	$self
		2083	}
		2084
		2085	# find and load all maps in the 3x3 area around a map
		2086	sub load_neighbours {
		2087	my ($map) = @_;
		2088
		2089	my @neigh; # diagonal neighbours
		2090
		2091	for (0 .. 3) {
		2092	my $neigh = $map->tile_path ($_)
		2093	or next;
		2094	$neigh = find $neigh, $map
		2095	or next;
		2096	$neigh->load;
		2097
		2098	push @neigh,
		2099	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2100	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2101	}
		2102
		2103	for (grep defined $_->[0], @neigh) {
		2104	my ($path, $origin) = @$_;
		2105	my $neigh = find $path, $origin
		2106	or next;
		2107	$neigh->load;
		2108	}
		2109	}
		2110
		2111	sub find_sync {
1193	my ($path, $origin) = @_;	2112	my ($path, $origin) = @_;
1194		2113
1195	#warn "load_map_sync<$path, $origin>\n";#d#	2114	cf::sync_job { find $path, $origin }
		2115	}
1196		2116
1197	cf::sync_job {	2117	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	2118	my ($map) = @_;
1199	or return;	2119
1200	$map->load;	2120	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1201	$map	2121	if $Coro::current == $Coro::main;
		2122
		2123	cf::sync_job { $map->load };
		2124	}
		2125
		2126	our %MAP_PREFETCH;
		2127	our $MAP_PREFETCHER = undef;
		2128
		2129	sub find_async {
		2130	my ($path, $origin, $load) = @_;
		2131
		2132	$path = normalise $path, $origin && $origin->{path};
		2133
		2134	if (my $map = $cf::MAP{$path}) {
		2135	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2136	}
		2137
		2138	$MAP_PREFETCH{$path} |= $load;
		2139
		2140	$MAP_PREFETCHER ||= cf::async {
		2141	$Coro::current->{desc} = "map prefetcher";
		2142
		2143	while (%MAP_PREFETCH) {
		2144	while (my ($k, $v) = each %MAP_PREFETCH) {
		2145	if (my $map = find $k) {
		2146	$map->load if $v;
		2147	}
		2148
		2149	delete $MAP_PREFETCH{$k};
		2150	}
		2151	}
		2152	undef $MAP_PREFETCHER;
1202	}	2153	};
		2154	$MAP_PREFETCHER->prio (6);
		2155
		2156	()
1203	}	2157	}
1204		2158
1205	sub save {	2159	sub save {
1206	my ($self) = @_;	2160	my ($self) = @_;
1207		2161
1208	my $save = $self->{path}->save_path; utf8::encode $save;	2162	my $lock = cf::lock_acquire "map_data:$self->{path}";
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		2163
1211	$self->{last_save} = $cf::RUNTIME;	2164	$self->{last_save} = $cf::RUNTIME;
1212		2165
1213	return unless $self->dirty;	2166	return unless $self->dirty;
1214		2167
		2168	my $save = $self->save_path; utf8::encode $save;
		2169	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2170
1215	$self->{load_path} = $save;	2171	$self->{load_path} = $save;
1216		2172
1217	return if $self->{deny_save};	2173	return if $self->{deny_save};
1218		2174
		2175	local $self->{last_access} = $self->last_access;#d#
		2176
		2177	cf::async {
		2178	$Coro::current->{desc} = "map player save";
		2179	$_->contr->save for $self->players;
		2180	};
		2181
1219	if ($uniq) {	2182	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2183	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	2184	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	2185	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2186	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	2187	}
1225	}	2188	}
1226		2189
1227	sub swap_out {	2190	sub swap_out {
1228	my ($self) = @_;	2191	my ($self) = @_;
		2192
		2193	# save first because save cedes
		2194	$self->save;
		2195
		2196	my $lock = cf::lock_acquire "map_data:$self->{path}";
1229		2197
1230	return if $self->players;	2198	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	2199	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	2200	return if $self->{deny_save};
1233		2201
		2202	$self->in_memory (cf::MAP_SWAPPED);
		2203
1234	$self->save;	2204	$self->deactivate;
		2205	$_->clear_links_to ($self) for values %cf::MAP;
1235	$self->clear;	2206	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);
1237	}	2207	}
1238		2208
1239	sub reset_at {	2209	sub reset_at {
1240	my ($self) = @_;	2210	my ($self) = @_;
1241		2211
1242	# TODO: safety, remove and allow resettable per-player maps	2212	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	2213	return 1e99 if $self->{deny_reset};
1245		2214
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2215	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	2216	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		2217
1250	$time + $to	2218	$time + $to
1251	}	2219	}
1252		2220
1253	sub should_reset {	2221	sub should_reset {
1254	my ($self) = @_;	2222	my ($self) = @_;
1255		2223
1256	$self->reset_at <= $cf::RUNTIME	2224	$self->reset_at <= $cf::RUNTIME
1257	}	2225	}
1258		2226
1259	sub unlink_save {
1260	my ($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	$self->save;
1278	}
1279
1280	sub reset {	2227	sub reset {
1281	my ($self) = @_;	2228	my ($self) = @_;
1282		2229
		2230	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2231
1283	return if $self->players;	2232	return if $self->players;
1284	return if $self->{path}{user_rel};#d#
1285		2233
1286	warn "resetting map ", $self->path;#d#	2234	warn "resetting map ", $self->path;
		2235
		2236	$self->in_memory (cf::MAP_SWAPPED);
		2237
		2238	# need to save uniques path
		2239	unless ($self->{deny_save}) {
		2240	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2241
		2242	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2243	if $uniq;
		2244	}
1287		2245
1288	delete $cf::MAP{$self->path};	2246	delete $cf::MAP{$self->path};
1289		2247
		2248	$self->deactivate;
1290	$_->clear_links_to ($self) for values %cf::MAP;	2249	$_->clear_links_to ($self) for values %cf::MAP;
		2250	$self->clear;
1291		2251
1292	$self->unlink_save;	2252	$self->unlink_save;
1293	$self->destroy;	2253	$self->destroy;
1294	}	2254	}
1295		2255
1296	sub customise_for {	2256	my $nuke_counter = "aaaa";
1297	my ($map, $ob) = @_;
1298		2257
1299	if ($map->per_player) {	2258	sub nuke {
1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2259	my ($self) = @_;
		2260
1301	}	2261	{
		2262	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2263
1303	$map	2264	delete $cf::MAP{$self->path};
1304	}
1305		2265
1306	sub emergency_save {	2266	$self->unlink_save;
1307	local $cf::FREEZE = 1;
1308		2267
1309	warn "enter emergency map save\n";	2268	bless $self, "cf::map";
		2269	delete $self->{deny_reset};
		2270	$self->{deny_save} = 1;
		2271	$self->reset_timeout (1);
		2272	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1310		2273
1311	cf::sync_job {	2274	$cf::MAP{$self->path} = $self;
1312	warn "begin emergency map save\n";
1313	$_->save for values %cf::MAP;
1314	};	2275	}
1315		2276
1316	warn "end emergency map save\n";	2277	$self->reset; # polite request, might not happen
		2278	}
		2279
		2280	=item $maps = cf::map::tmp_maps
		2281
		2282	Returns an arrayref with all map paths of currently instantiated and saved
		2283	maps. May block.
		2284
		2285	=cut
		2286
		2287	sub tmp_maps() {
		2288	[
		2289	map {
		2290	utf8::decode $_;
		2291	/\.map$/
		2292	? normalise $_
		2293	: ()
		2294	} @{ aio_readdir $TMPDIR or [] }
		2295	]
		2296	}
		2297
		2298	=item $maps = cf::map::random_maps
		2299
		2300	Returns an arrayref with all map paths of currently instantiated and saved
		2301	random maps. May block.
		2302
		2303	=cut
		2304
		2305	sub random_maps() {
		2306	[
		2307	map {
		2308	utf8::decode $_;
		2309	/\.map$/
		2310	? normalise "?random/$_"
		2311	: ()
		2312	} @{ aio_readdir $RANDOMDIR or [] }
		2313	]
		2314	}
		2315
		2316	=item cf::map::unique_maps
		2317
		2318	Returns an arrayref of paths of all shared maps that have
		2319	instantiated unique items. May block.
		2320
		2321	=cut
		2322
		2323	sub unique_maps() {
		2324	[
		2325	map {
		2326	utf8::decode $_;
		2327	/\.map$/
		2328	? normalise $_
		2329	: ()
		2330	} @{ aio_readdir $UNIQUEDIR or [] }
		2331	]
1317	}	2332	}
1318		2333
1319	package cf;	2334	package cf;
1320		2335
1321	=back	2336	=back
1322		2337
		2338	=head3 cf::object
		2339
		2340	=cut
		2341
		2342	package cf::object;
		2343
		2344	=over 4
		2345
		2346	=item $ob->inv_recursive
		2347
		2348	Returns the inventory of the object _and_ their inventories, recursively.
		2349
		2350	=cut
		2351
		2352	sub inv_recursive_;
		2353	sub inv_recursive_ {
		2354	map { $_, inv_recursive_ $_->inv } @_
		2355	}
		2356
		2357	sub inv_recursive {
		2358	inv_recursive_ inv $_[0]
		2359	}
		2360
		2361	=item $ref = $ob->ref
		2362
		2363	creates and returns a persistent reference to an objetc that can be stored as a string.
		2364
		2365	=item $ob = cf::object::deref ($refstring)
		2366
		2367	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2368	even if the object actually exists. May block.
		2369
		2370	=cut
		2371
		2372	sub deref {
		2373	my ($ref) = @_;
		2374
		2375	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2376	my ($uuid, $name) = ($1, $2);
		2377	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2378	or return;
		2379	$pl->ob->uuid eq $uuid
		2380	or return;
		2381
		2382	$pl->ob
		2383	} else {
		2384	warn "$ref: cannot resolve object reference\n";
		2385	undef
		2386	}
		2387	}
		2388
		2389	package cf;
		2390
		2391	=back
1323		2392
1324	=head3 cf::object::player	2393	=head3 cf::object::player
1325		2394
1326	=over 4	2395	=over 4
1327		2396
…		…
1341		2410
1342	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2411	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1343		2412
1344	if ($self->{record_replies}) {	2413	if ($self->{record_replies}) {
1345	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2414	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2415
1346	} else {	2416	} else {
		2417	my $pl = $self->contr;
		2418
		2419	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2420	my $dialog = $pl->{npc_dialog};
		2421	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2422
		2423	} else {
1347	$msg = $npc->name . " says: $msg" if $npc;	2424	$msg = $npc->name . " says: $msg" if $npc;
1348	$self->message ($msg, $flags);	2425	$self->message ($msg, $flags);
		2426	}
1349	}	2427	}
		2428	}
		2429
		2430	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2431
		2432	=cut
		2433
		2434	sub cf::object::send_msg {
		2435	my $pl = shift->contr
		2436	or return;
		2437	$pl->send_msg (@_);
1350	}	2438	}
1351		2439
1352	=item $player_object->may ("access")	2440	=item $player_object->may ("access")
1353		2441
1354	Returns wether the given player is authorized to access resource "access"	2442	Returns wether the given player is authorized to access resource "access"
…		…
1363	(ref $cf::CFG{"may_$access"}	2451	(ref $cf::CFG{"may_$access"}
1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2452	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365	: $cf::CFG{"may_$access"})	2453	: $cf::CFG{"may_$access"})
1366	}	2454	}
1367		2455
		2456	=item $player_object->enter_link
		2457
		2458	Freezes the player and moves him/her to a special map (C<{link}>).
		2459
		2460	The player should be reasonably safe there for short amounts of time. You
		2461	I<MUST> call C<leave_link> as soon as possible, though.
		2462
		2463	Will never block.
		2464
		2465	=item $player_object->leave_link ($map, $x, $y)
		2466
		2467	Moves the player out of the special C<{link}> map onto the specified
		2468	map. If the map is not valid (or omitted), the player will be moved back
		2469	to the location he/she was before the call to C<enter_link>, or, if that
		2470	fails, to the emergency map position.
		2471
		2472	Might block.
		2473
		2474	=cut
		2475
		2476	sub link_map {
		2477	unless ($LINK_MAP) {
		2478	$LINK_MAP = cf::map::find "{link}"
		2479	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2480	$LINK_MAP->load;
		2481	}
		2482
		2483	$LINK_MAP
		2484	}
		2485
1368	sub cf::object::player::enter_link {	2486	sub cf::object::player::enter_link {
1369	my ($self) = @_;	2487	my ($self) = @_;
1370		2488
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;	2489	$self->deactivate_recursive;
		2490
		2491	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2492
		2493	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2494	if $self->map && $self->map->{path} ne "{link}";
		2495
		2496	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1378	}	2497	}
1379		2498
1380	sub cf::object::player::leave_link {	2499	sub cf::object::player::leave_link {
1381	my ($self, $map, $x, $y) = @_;	2500	my ($self, $map, $x, $y) = @_;
1382		2501
		2502	return unless $self->contr->active;
		2503
1383	my $link_pos = delete $self->{_link_pos};	2504	my $link_pos = delete $self->{_link_pos};
1384		2505
1385	unless ($map) {	2506	unless ($map) {
1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388	# restore original map position	2507	# restore original map position
1389	($map, $x, $y) = @{ $link_pos || [] };	2508	($map, $x, $y) = @{ $link_pos || [] };
1390	$map = cf::map::find_map $map;	2509	$map = cf::map::find $map;
1391		2510
1392	unless ($map) {	2511	unless ($map) {
1393	($map, $x, $y) = @$EMERGENCY_POSITION;	2512	($map, $x, $y) = @$EMERGENCY_POSITION;
1394	$map = cf::map::find_map $map	2513	$map = cf::map::find $map
1395	or die "FATAL: cannot load emergency map\n";	2514	or die "FATAL: cannot load emergency map\n";
1396	}	2515	}
1397	}	2516	}
1398		2517
1399	($x, $y) = (-1, -1)	2518	($x, $y) = (-1, -1)
…		…
1402	# use -1 or undef as default coordinates, not 0, 0	2521	# use -1 or undef as default coordinates, not 0, 0
1403	($x, $y) = ($map->enter_x, $map->enter_y)	2522	($x, $y) = ($map->enter_x, $map->enter_y)
1404	if $x <=0 && $y <= 0;	2523	if $x <=0 && $y <= 0;
1405		2524
1406	$map->load;	2525	$map->load;
		2526	$map->load_neighbours;
1407		2527
		2528	return unless $self->contr->active;
1408	$self->activate_recursive;	2529	$self->activate_recursive;
		2530
		2531	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1409	$self->enter_map ($map, $x, $y);	2532	$self->enter_map ($map, $x, $y);
1410	}	2533	}
1411		2534
1412	=item $player_object->goto_map ($map, $x, $y)	2535	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1413		2536
1414	=cut	2537	Moves the player to the given map-path and coordinates by first freezing
		2538	her, loading and preparing them map, calling the provided $check callback
		2539	that has to return the map if sucecssful, and then unfreezes the player on
		2540	the new (success) or old (failed) map position. In either case, $done will
		2541	be called at the end of this process.
1415		2542
		2543	=cut
		2544
		2545	our $GOTOGEN;
		2546
1416	sub cf::object::player::goto_map {	2547	sub cf::object::player::goto {
1417	my ($self, $path, $x, $y) = @_;	2548	my ($self, $path, $x, $y, $check, $done) = @_;
		2549
		2550	# do generation counting so two concurrent goto's will be executed in-order
		2551	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1418		2552
1419	$self->enter_link;	2553	$self->enter_link;
1420		2554
1421	(Coro::async {	2555	(async {
1422	$path = new cf::path $path;	2556	$Coro::current->{desc} = "player::goto $path $x $y";
1423		2557
1424	my $map = cf::map::find_map $path->as_string;	2558	# *tag paths override both path and x|y
		2559	if ($path =~ /^\*(.*)$/) {
		2560	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2561	my $ob = $obs[rand @obs];
		2562
		2563	# see if we actually can go there
		2564	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2565	$ob = $obs[rand @obs];
		2566	} else {
		2567	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2568	}
		2569	# else put us there anyways for now #d#
		2570
		2571	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2572	} else {
		2573	($path, $x, $y) = (undef, undef, undef);
		2574	}
		2575	}
		2576
		2577	my $map = eval {
		2578	my $map = defined $path ? cf::map::find $path : undef;
		2579
		2580	if ($map) {
1425	$map = $map->customise_for ($self) if $map;	2581	$map = $map->customise_for ($self);
		2582	$map = $check->($map) if $check && $map;
		2583	} else {
		2584	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2585	}
1426		2586
1427	warn "entering ", $map->path, " at ($x, $y)\n"
1428	if $map;	2587	$map
		2588	};
1429		2589
		2590	if ($@) {
		2591	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2592	LOG llevError | logBacktrace, Carp::longmess $@;
		2593	}
		2594
		2595	if ($gen == $self->{_goto_generation}) {
		2596	delete $self->{_goto_generation};
1430	$self->leave_link ($map, $x, $y);	2597	$self->leave_link ($map, $x, $y);
		2598	}
		2599
		2600	$done->() if $done;
1431	})->prio (1);	2601	})->prio (1);
1432	}	2602	}
1433		2603
1434	=item $player_object->enter_exit ($exit_object)	2604	=item $player_object->enter_exit ($exit_object)
1435		2605
…		…
1437		2607
1438	sub parse_random_map_params {	2608	sub parse_random_map_params {
1439	my ($spec) = @_;	2609	my ($spec) = @_;
1440		2610
1441	my $rmp = { # defaults	2611	my $rmp = { # defaults
1442	xsize => 10,	2612	xsize => (cf::rndm 15, 40),
1443	ysize => 10,	2613	ysize => (cf::rndm 15, 40),
		2614	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2615	#layout => string,
1444	};	2616	};
1445		2617
1446	for (split /\n/, $spec) {	2618	for (split /\n/, $spec) {
1447	my ($k, $v) = split /\s+/, $_, 2;	2619	my ($k, $v) = split /\s+/, $_, 2;
1448		2620
…		…
1452	$rmp	2624	$rmp
1453	}	2625	}
1454		2626
1455	sub prepare_random_map {	2627	sub prepare_random_map {
1456	my ($exit) = @_;	2628	my ($exit) = @_;
		2629
		2630	my $guard = cf::lock_acquire "exit_prepare:$exit";
1457		2631
1458	# all this does is basically replace the /! path by	2632	# all this does is basically replace the /! path by
1459	# a new random map path (?random/...) with a seed	2633	# a new random map path (?random/...) with a seed
1460	# that depends on the exit object	2634	# that depends on the exit object
1461		2635
1462	my $rmp = parse_random_map_params $exit->msg;	2636	my $rmp = parse_random_map_params $exit->msg;
1463		2637
1464	if ($exit->map) {	2638	if ($exit->map) {
1465	$rmp->{region} = $exit->map->region_name;	2639	$rmp->{region} = $exit->region->name;
1466	$rmp->{origin_map} = $exit->map->path;	2640	$rmp->{origin_map} = $exit->map->path;
1467	$rmp->{origin_x} = $exit->x;	2641	$rmp->{origin_x} = $exit->x;
1468	$rmp->{origin_y} = $exit->y;	2642	$rmp->{origin_y} = $exit->y;
1469	}	2643	}
1470		2644
1471	$rmp->{random_seed} ||= $exit->random_seed;	2645	$rmp->{random_seed} ||= $exit->random_seed;
1472		2646
1473	my $data = cf::to_json $rmp;	2647	my $data = cf::encode_json $rmp;
1474	my $md5 = Digest::MD5::md5_hex $data;	2648	my $md5 = Digest::MD5::md5_hex $data;
		2649	my $meta = "$RANDOMDIR/$md5.meta";
1475		2650
1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2651	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1477	aio_write $fh, 0, (length $data), $data, 0;	2652	aio_write $fh, 0, (length $data), $data, 0;
		2653	undef $fh;
		2654	aio_rename "$meta~", $meta;
1478		2655
1479	$exit->slaying ("?random/$md5");	2656	$exit->slaying ("?random/$md5");
1480	$exit->msg (undef);	2657	$exit->msg (undef);
1481	}	2658	}
1482	}	2659	}
…		…
1484	sub cf::object::player::enter_exit {	2661	sub cf::object::player::enter_exit {
1485	my ($self, $exit) = @_;	2662	my ($self, $exit) = @_;
1486		2663
1487	return unless $self->type == cf::PLAYER;	2664	return unless $self->type == cf::PLAYER;
1488		2665
		2666	if ($exit->slaying eq "/!") {
		2667	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2668	# the problem is that $exit might not survive long enough
		2669	# so it needs to be done right now, right here
		2670	cf::sync_job { prepare_random_map $exit };
		2671	}
		2672
		2673	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2674	my $hp = $exit->stats->hp;
		2675	my $sp = $exit->stats->sp;
		2676
1489	$self->enter_link;	2677	$self->enter_link;
1490		2678
		2679	# if exit is damned, update players death & WoR home-position
		2680	$self->contr->savebed ($slaying, $hp, $sp)
		2681	if $exit->flag (FLAG_DAMNED);
		2682
1491	(Coro::async {	2683	(async {
		2684	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2685
		2686	$self->deactivate_recursive; # just to be sure
1492	unless (eval {	2687	unless (eval {
1493		2688	$self->goto ($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		2689
1500	1;	2690	1;
1501	}) {	2691	}) {
1502	$self->message ("Something went wrong deep within the crossfire server. "	2692	$self->message ("Something went wrong deep within the crossfire server. "
1503	. "I'll try to bring you back to the map you were before. "	2693	. "I'll try to bring you back to the map you were before. "
1504	. "Please report this to the dungeon master",	2694	. "Please report this to the dungeon master!",
1505	cf::NDI_UNIQUE | cf::NDI_RED);	2695	cf::NDI_UNIQUE | cf::NDI_RED);
1506		2696
1507	warn "ERROR in enter_exit: $@";	2697	warn "ERROR in enter_exit: $@";
1508	$self->leave_link;	2698	$self->leave_link;
1509	}	2699	}
1510	})->prio (1);	2700	})->prio (1);
…		…
1523		2713
1524	sub cf::client::send_drawinfo {	2714	sub cf::client::send_drawinfo {
1525	my ($self, $text, $flags) = @_;	2715	my ($self, $text, $flags) = @_;
1526		2716
1527	utf8::encode $text;	2717	utf8::encode $text;
1528	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2718	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1529	}	2719	}
1530		2720
		2721	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2722
		2723	Send a drawinfo or msg packet to the client, formatting the msg for the
		2724	client if neccessary. C<$type> should be a string identifying the type of
		2725	the message, with C<log> being the default. If C<$color> is negative, suppress
		2726	the message unless the client supports the msg packet.
		2727
		2728	=cut
		2729
		2730	# non-persistent channels (usually the info channel)
		2731	our %CHANNEL = (
		2732	"c/identify" => {
		2733	id => "infobox",
		2734	title => "Identify",
		2735	reply => undef,
		2736	tooltip => "Items recently identified",
		2737	},
		2738	"c/examine" => {
		2739	id => "infobox",
		2740	title => "Examine",
		2741	reply => undef,
		2742	tooltip => "Signs and other items you examined",
		2743	},
		2744	"c/book" => {
		2745	id => "infobox",
		2746	title => "Book",
		2747	reply => undef,
		2748	tooltip => "The contents of a note or book",
		2749	},
		2750	"c/lookat" => {
		2751	id => "infobox",
		2752	title => "Look",
		2753	reply => undef,
		2754	tooltip => "What you saw there",
		2755	},
		2756	"c/who" => {
		2757	id => "infobox",
		2758	title => "Players",
		2759	reply => undef,
		2760	tooltip => "Shows players who are currently online",
		2761	},
		2762	"c/body" => {
		2763	id => "infobox",
		2764	title => "Body Parts",
		2765	reply => undef,
		2766	tooltip => "Shows which body parts you posess and are available",
		2767	},
		2768	"c/uptime" => {
		2769	id => "infobox",
		2770	title => "Uptime",
		2771	reply => undef,
		2772	tooltip => "How long the server has been running since last restart",
		2773	},
		2774	"c/mapinfo" => {
		2775	id => "infobox",
		2776	title => "Map Info",
		2777	reply => undef,
		2778	tooltip => "Information related to the maps",
		2779	},
		2780	);
		2781
		2782	sub cf::client::send_msg {
		2783	my ($self, $channel, $msg, $color, @extra) = @_;
		2784
		2785	$msg = $self->pl->expand_cfpod ($msg);
		2786
		2787	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2788
		2789	# check predefined channels, for the benefit of C
		2790	if ($CHANNEL{$channel}) {
		2791	$channel = $CHANNEL{$channel};
		2792
		2793	$self->ext_msg (channel_info => $channel)
		2794	if $self->can_msg;
		2795
		2796	$channel = $channel->{id};
		2797
		2798	} elsif (ref $channel) {
		2799	# send meta info to client, if not yet sent
		2800	unless (exists $self->{channel}{$channel->{id}}) {
		2801	$self->{channel}{$channel->{id}} = $channel;
		2802	$self->ext_msg (channel_info => $channel)
		2803	if $self->can_msg;
		2804	}
		2805
		2806	$channel = $channel->{id};
		2807	}
		2808
		2809	return unless @extra || length $msg;
		2810
		2811	if ($self->can_msg) {
		2812	# default colour, mask it out
		2813	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2814	if $color & cf::NDI_DEF;
		2815
		2816	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2817	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2818	} else {
		2819	if ($color >= 0) {
		2820	# replace some tags by gcfclient-compatible ones
		2821	for ($msg) {
		2822	1 while
		2823	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2824	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2825	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2826	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2827	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2828	}
		2829
		2830	$color &= cf::NDI_COLOR_MASK;
		2831
		2832	utf8::encode $msg;
		2833
		2834	if (0 && $msg =~ /\[/) {
		2835	# COMMAND/INFO
		2836	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2837	} else {
		2838	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2839	$self->send_packet ("drawinfo $color $msg")
		2840	}
		2841	}
		2842	}
		2843	}
		2844
		2845	=item $client->ext_msg ($type, @msg)
		2846
		2847	Sends an ext event to the client.
		2848
		2849	=cut
		2850
		2851	sub cf::client::ext_msg($$@) {
		2852	my ($self, $type, @msg) = @_;
		2853
		2854	if ($self->extcmd == 2) {
		2855	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2856	} elsif ($self->extcmd == 1) { # TODO: remove
		2857	push @msg, msgtype => "event_$type";
		2858	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2859	}
		2860	}
		2861
		2862	=item $client->ext_reply ($msgid, @msg)
		2863
		2864	Sends an ext reply to the client.
		2865
		2866	=cut
		2867
		2868	sub cf::client::ext_reply($$@) {
		2869	my ($self, $id, @msg) = @_;
		2870
		2871	if ($self->extcmd == 2) {
		2872	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2873	} elsif ($self->extcmd == 1) {
		2874	#TODO: version 1, remove
		2875	unshift @msg, msgtype => "reply", msgid => $id;
		2876	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2877	}
		2878	}
1531		2879
1532	=item $success = $client->query ($flags, "text", \&cb)	2880	=item $success = $client->query ($flags, "text", \&cb)
1533		2881
1534	Queues a query to the client, calling the given callback with	2882	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>,	2883	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>.	2884	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1537		2885
1538	Queries can fail, so check the return code. Or don't, as queries will become	2886	Queries can fail, so check the return code. Or don't, as queries will
1539	reliable at some point in the future.	2887	become reliable at some point in the future.
1540		2888
1541	=cut	2889	=cut
1542		2890
1543	sub cf::client::query {	2891	sub cf::client::query {
1544	my ($self, $flags, $text, $cb) = @_;	2892	my ($self, $flags, $text, $cb) = @_;
…		…
1552	utf8::encode $text;	2900	utf8::encode $text;
1553	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2901	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1554		2902
1555	$self->send_packet ($self->{query_queue}[0][0])	2903	$self->send_packet ($self->{query_queue}[0][0])
1556	if @{ $self->{query_queue} } == 1;	2904	if @{ $self->{query_queue} } == 1;
		2905
		2906	1
1557	}	2907	}
1558		2908
1559	cf::client->attach (	2909	cf::client->attach (
		2910	on_connect => sub {
		2911	my ($ns) = @_;
		2912
		2913	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2914	},
1560	on_reply => sub {	2915	on_reply => sub {
1561	my ($ns, $msg) = @_;	2916	my ($ns, $msg) = @_;
1562		2917
1563	# this weird shuffling is so that direct followup queries	2918	# this weird shuffling is so that direct followup queries
1564	# get handled first	2919	# get handled first
1565	my $queue = delete $ns->{query_queue};	2920	my $queue = delete $ns->{query_queue}
		2921	or return; # be conservative, not sure how that can happen, but we saw a crash here
1566		2922
1567	(shift @$queue)->[1]->($msg);	2923	(shift @$queue)->[1]->($msg);
		2924	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1568		2925
1569	push @{ $ns->{query_queue} }, @$queue;	2926	push @{ $ns->{query_queue} }, @$queue;
1570		2927
1571	if (@{ $ns->{query_queue} } == @$queue) {	2928	if (@{ $ns->{query_queue} } == @$queue) {
1572	if (@$queue) {	2929	if (@$queue) {
…		…
1574	} else {	2931	} else {
1575	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2932	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1576	}	2933	}
1577	}	2934	}
1578	},	2935	},
		2936	on_exticmd => sub {
		2937	my ($ns, $buf) = @_;
		2938
		2939	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2940
		2941	if (ref $msg) {
		2942	my ($type, $reply, @payload) =
		2943	"ARRAY" eq ref $msg
		2944	? @$msg
		2945	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2946
		2947	my @reply;
		2948
		2949	if (my $cb = $EXTICMD{$type}) {
		2950	@reply = $cb->($ns, @payload);
		2951	}
		2952
		2953	$ns->ext_reply ($reply, @reply)
		2954	if $reply;
		2955
		2956	} else {
		2957	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2958	}
		2959
		2960	cf::override;
		2961	},
1579	);	2962	);
1580		2963
1581	=item $client->coro (\&cb)	2964	=item $client->async (\&cb)
1582		2965
1583	Create a new coroutine, running the specified callback. The coroutine will	2966	Create a new coroutine, running the specified callback. The coroutine will
1584	be automatically cancelled when the client gets destroyed (e.g. on logout,	2967	be automatically cancelled when the client gets destroyed (e.g. on logout,
1585	or loss of connection).	2968	or loss of connection).
1586		2969
1587	=cut	2970	=cut
1588		2971
1589	sub cf::client::coro {	2972	sub cf::client::async {
1590	my ($self, $cb) = @_;	2973	my ($self, $cb) = @_;
1591		2974
1592	my $coro; $coro = async {	2975	my $coro = &Coro::async ($cb);
1593	eval {
1594	$cb->();
1595	};
1596	warn $@ if $@;
1597	};
1598		2976
1599	$coro->on_destroy (sub {	2977	$coro->on_destroy (sub {
1600	delete $self->{_coro}{$coro+0};	2978	delete $self->{_coro}{$coro+0};
1601	});	2979	});
1602		2980
…		…
1629	our $safe = new Safe "safe";	3007	our $safe = new Safe "safe";
1630	our $safe_hole = new Safe::Hole;	3008	our $safe_hole = new Safe::Hole;
1631		3009
1632	$SIG{FPE} = 'IGNORE';	3010	$SIG{FPE} = 'IGNORE';
1633		3011
1634	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3012	$safe->permit_only (Opcode::opset qw(
		3013	:base_core :base_mem :base_orig :base_math
		3014	grepstart grepwhile mapstart mapwhile
		3015	sort time
		3016	));
1635		3017
1636	# here we export the classes and methods available to script code	3018	# here we export the classes and methods available to script code
1637		3019
1638	=pod	3020	=pod
1639		3021
1640	The following fucntions and emthods are available within a safe environment:	3022	The following functions and methods are available within a safe environment:
1641		3023
1642	cf::object contr pay_amount pay_player map	3024	cf::object
		3025	contr pay_amount pay_player map x y force_find force_add destroy
		3026	insert remove name archname title slaying race decrease_ob_nr
		3027
1643	cf::object::player player	3028	cf::object::player
1644	cf::player peaceful	3029	player
1645	cf::map trigger	3030
		3031	cf::player
		3032	peaceful
		3033
		3034	cf::map
		3035	trigger
1646		3036
1647	=cut	3037	=cut
1648		3038
1649	for (	3039	for (
1650	["cf::object" => qw(contr pay_amount pay_player map)],	3040	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3041	insert remove inv name archname title slaying race
		3042	decrease_ob_nr destroy)],
1651	["cf::object::player" => qw(player)],	3043	["cf::object::player" => qw(player)],
1652	["cf::player" => qw(peaceful)],	3044	["cf::player" => qw(peaceful)],
1653	["cf::map" => qw(trigger)],	3045	["cf::map" => qw(trigger)],
1654	) {	3046	) {
1655	no strict 'refs';	3047	no strict 'refs';
…		…
1726	=back	3118	=back
1727		3119
1728	=cut	3120	=cut
1729		3121
1730	#############################################################################	3122	#############################################################################
		3123	# the server's init and main functions
1731		3124
1732	=head2 EXTENSION DATABASE SUPPORT	3125	sub load_facedata($) {
		3126	my ($path) = @_;
1733		3127
1734	Crossfire maintains a very simple database for extension use. It can	3128	# HACK to clear player env face cache, we need some signal framework
1735	currently store anything that can be serialised using Storable, which	3129	# for this (global event?)
1736	excludes objects.	3130	%ext::player_env::MUSIC_FACE_CACHE = ();
1737		3131
1738	The parameter C<$family> should best start with the name of the extension	3132	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1739	using it, it should be unique.
1740		3133
1741	=over 4	3134	warn "loading facedata from $path\n";
1742		3135
1743	=item $hashref = cf::db_get $family	3136	my $facedata;
		3137	0 < aio_load $path, $facedata
		3138	or die "$path: $!";
1744		3139
1745	Return a hashref for use by the extension C<$family>, which can be	3140	$facedata = Coro::Storable::thaw $facedata;
1746	modified. After modifications, you have to call C<cf::db_dirty> or
1747	C<cf::db_sync>.
1748		3141
1749	=item $value = cf::db_get $family => $key	3142	$facedata->{version} == 2
		3143	or cf::cleanup "$path: version mismatch, cannot proceed.";
1750		3144
1751	Returns a single value from the database	3145	# patch in the exptable
1752		3146	$facedata->{resource}{"res/exp_table"} = {
1753	=item cf::db_put $family => $hashref	3147	type => FT_RSRC,
1754		3148	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	});	3149	};
		3150	cf::cede_to_tick;
1806		3151
1807	sub db_dirty() {
1808	$dirty = 1;
1809	$idle->start;
1810	}	3152	{
		3153	my $faces = $facedata->{faceinfo};
1811		3154
1812	sub db_get($;$) {	3155	while (my ($face, $info) = each %$faces) {
1813	@_ >= 2	3156	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1814	? $DB->{$_[0]}{$_[1]}
1815	: ($DB->{$_[0]} ||= { })
1816	}
1817		3157
1818	sub db_put($$;$) {	3158	cf::face::set_visibility $idx, $info->{visibility};
1819	if (@_ >= 3) {	3159	cf::face::set_magicmap $idx, $info->{magicmap};
1820	$DB->{$_[0]}{$_[1]} = $_[2];	3160	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1821	} else {	3161	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1822	$DB->{$_[0]} = $_[1];
1823	}
1824	db_dirty;
1825	}
1826		3162
1827	cf::global->attach (	3163	cf::cede_to_tick;
1828	prio => 10000,
1829	on_cleanup => sub {
1830	db_sync;
1831	},	3164	}
1832	);
1833	}
1834		3165
1835	#############################################################################	3166	while (my ($face, $info) = each %$faces) {
1836	# the server's main()	3167	next unless $info->{smooth};
1837		3168
1838	sub cfg_load {	3169	my $idx = cf::face::find $face
		3170	or next;
		3171
		3172	if (my $smooth = cf::face::find $info->{smooth}) {
		3173	cf::face::set_smooth $idx, $smooth;
		3174	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3175	} else {
		3176	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3177	}
		3178
		3179	cf::cede_to_tick;
		3180	}
		3181	}
		3182
		3183	{
		3184	my $anims = $facedata->{animinfo};
		3185
		3186	while (my ($anim, $info) = each %$anims) {
		3187	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3188	cf::cede_to_tick;
		3189	}
		3190
		3191	cf::anim::invalidate_all; # d'oh
		3192	}
		3193
		3194	{
		3195	# TODO: for gcfclient pleasure, we should give resources
		3196	# that gcfclient doesn't grok a >10000 face index.
		3197	my $res = $facedata->{resource};
		3198
		3199	while (my ($name, $info) = each %$res) {
		3200	if (defined $info->{type}) {
		3201	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3202	my $data;
		3203
		3204	if ($info->{type} & 1) {
		3205	# prepend meta info
		3206
		3207	my $meta = $enc->encode ({
		3208	name => $name,
		3209	%{ $info->{meta} || {} },
		3210	});
		3211
		3212	$data = pack "(w/a*)*", $meta, $info->{data};
		3213	} else {
		3214	$data = $info->{data};
		3215	}
		3216
		3217	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3218	cf::face::set_type $idx, $info->{type};
		3219	} else {
		3220	$RESOURCE{$name} = $info;
		3221	}
		3222
		3223	cf::cede_to_tick;
		3224	}
		3225	}
		3226
		3227	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3228
		3229	1
		3230	}
		3231
		3232	cf::global->attach (on_resource_update => sub {
		3233	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3234	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3235
		3236	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3237	my $sound = $soundconf->{compat}[$_]
		3238	or next;
		3239
		3240	my $face = cf::face::find "sound/$sound->[1]";
		3241	cf::sound::set $sound->[0] => $face;
		3242	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3243	}
		3244
		3245	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3246	my $face = cf::face::find "sound/$v";
		3247	cf::sound::set $k => $face;
		3248	}
		3249	}
		3250	});
		3251
		3252	register_exticmd fx_want => sub {
		3253	my ($ns, $want) = @_;
		3254
		3255	while (my ($k, $v) = each %$want) {
		3256	$ns->fx_want ($k, $v);
		3257	}
		3258	};
		3259
		3260	sub reload_regions {
		3261	# HACK to clear player env face cache, we need some signal framework
		3262	# for this (global event?)
		3263	%ext::player_env::MUSIC_FACE_CACHE = ();
		3264
		3265	load_resource_file "$MAPDIR/regions"
		3266	or die "unable to load regions file\n";
		3267
		3268	for (cf::region::list) {
		3269	$_->{match} = qr/$_->{match}/
		3270	if exists $_->{match};
		3271	}
		3272	}
		3273
		3274	sub reload_facedata {
		3275	load_facedata "$DATADIR/facedata"
		3276	or die "unable to load facedata\n";
		3277	}
		3278
		3279	sub reload_archetypes {
		3280	load_resource_file "$DATADIR/archetypes"
		3281	or die "unable to load archetypes\n";
		3282	#d# NEED to laod twice to resolve forward references
		3283	# this really needs to be done in an extra post-pass
		3284	# (which needs to be synchronous, so solve it differently)
		3285	load_resource_file "$DATADIR/archetypes"
		3286	or die "unable to load archetypes\n";
		3287	}
		3288
		3289	sub reload_treasures {
		3290	load_resource_file "$DATADIR/treasures"
		3291	or die "unable to load treasurelists\n";
		3292	}
		3293
		3294	sub reload_resources {
		3295	warn "reloading resource files...\n";
		3296
		3297	reload_regions;
		3298	reload_facedata;
		3299	#reload_archetypes;#d#
		3300	reload_archetypes;
		3301	reload_treasures;
		3302
		3303	warn "finished reloading resource files\n";
		3304	}
		3305
		3306	sub init {
		3307	reload_resources;
		3308	}
		3309
		3310	sub reload_config {
1839	open my $fh, "<:utf8", cf::confdir . "/config"	3311	open my $fh, "<:utf8", "$CONFDIR/config"
1840	or return;	3312	or return;
1841		3313
1842	local $/;	3314	local $/;
1843	*CFG = YAML::Syck::Load <$fh>;	3315	*CFG = YAML::Load <$fh>;
		3316
		3317	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3318
		3319	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3320	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3321
		3322	if (exists $CFG{mlockall}) {
		3323	eval {
		3324	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3325	and die "WARNING: m(un)lockall failed: $!\n";
		3326	};
		3327	warn $@ if $@;
		3328	}
1844	}	3329	}
1845		3330
1846	sub main {	3331	sub main {
1847	# we must not ever block the main coroutine	3332	# we must not ever block the main coroutine
1848	local $Coro::idle = sub {	3333	local $Coro::idle = sub {
1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3334	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1850	(Coro::unblock_sub {	3335	(async {
1851	Event::one_event;	3336	$Coro::current->{desc} = "IDLE BUG HANDLER";
1852	})->();	3337	EV::loop EV::LOOP_ONESHOT;
		3338	})->prio (Coro::PRIO_MAX);
1853	};	3339	};
1854		3340
1855	cfg_load;	3341	reload_config;
1856	db_load;	3342	db_init;
1857	load_extensions;	3343	load_extensions;
		3344
		3345	$TICK_WATCHER->start;
		3346	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
1858	Event::loop;	3347	EV::loop;
1859	}	3348	}
1860		3349
1861	#############################################################################	3350	#############################################################################
1862	# initialisation	3351	# initialisation and cleanup
1863		3352
		3353	# install some emergency cleanup handlers
		3354	BEGIN {
		3355	our %SIGWATCHER = ();
		3356	for my $signal (qw(INT HUP TERM)) {
		3357	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3358	cf::cleanup "SIG$signal";
		3359	};
		3360	}
		3361	}
		3362
		3363	sub write_runtime {
		3364	my $runtime = "$LOCALDIR/runtime";
		3365
		3366	# first touch the runtime file to show we are still running:
		3367	# the fsync below can take a very very long time.
		3368
		3369	IO::AIO::aio_utime $runtime, undef, undef;
		3370
		3371	my $guard = cf::lock_acquire "write_runtime";
		3372
		3373	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3374	or return;
		3375
		3376	my $value = $cf::RUNTIME + 90 + 10;
		3377	# 10 is the runtime save interval, for a monotonic clock
		3378	# 60 allows for the watchdog to kill the server.
		3379
		3380	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3381	and return;
		3382
		3383	# always fsync - this file is important
		3384	aio_fsync $fh
		3385	and return;
		3386
		3387	# touch it again to show we are up-to-date
		3388	aio_utime $fh, undef, undef;
		3389
		3390	close $fh
		3391	or return;
		3392
		3393	aio_rename "$runtime~", $runtime
		3394	and return;
		3395
		3396	warn "runtime file written.\n";
		3397
		3398	1
		3399	}
		3400
		3401	sub emergency_save() {
		3402	my $freeze_guard = cf::freeze_mainloop;
		3403
		3404	warn "enter emergency perl save\n";
		3405
		3406	cf::sync_job {
		3407	# use a peculiar iteration method to avoid tripping on perl
		3408	# refcount bugs in for. also avoids problems with players
		3409	# and maps saved/destroyed asynchronously.
		3410	warn "begin emergency player save\n";
		3411	for my $login (keys %cf::PLAYER) {
		3412	my $pl = $cf::PLAYER{$login} or next;
		3413	$pl->valid or next;
		3414	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3415	$pl->save;
		3416	}
		3417	warn "end emergency player save\n";
		3418
		3419	warn "begin emergency map save\n";
		3420	for my $path (keys %cf::MAP) {
		3421	my $map = $cf::MAP{$path} or next;
		3422	$map->valid or next;
		3423	$map->save;
		3424	}
		3425	warn "end emergency map save\n";
		3426
		3427	warn "begin emergency database checkpoint\n";
		3428	BDB::db_env_txn_checkpoint $DB_ENV;
		3429	warn "end emergency database checkpoint\n";
		3430	};
		3431
		3432	warn "leave emergency perl save\n";
		3433	}
		3434
		3435	sub post_cleanup {
		3436	my ($make_core) = @_;
		3437
		3438	warn Carp::longmess "post_cleanup backtrace"
		3439	if $make_core;
		3440	}
		3441
1864	sub reload() {	3442	sub do_reload_perl() {
1865	# can/must only be called in main	3443	# can/must only be called in main
1866	if ($Coro::current != $Coro::main) {	3444	if ($Coro::current != $Coro::main) {
1867	warn "can only reload from main coroutine\n";	3445	warn "can only reload from main coroutine";
1868	return;	3446	return;
1869	}	3447	}
1870		3448
1871	warn "reloading...";	3449	warn "reloading...";
1872		3450
1873	local $FREEZE = 1;	3451	warn "entering sync_job";
		3452
		3453	cf::sync_job {
		3454	cf::write_runtime; # external watchdog should not bark
1874	cf::emergency_save;	3455	cf::emergency_save;
		3456	cf::write_runtime; # external watchdog should not bark
1875		3457
1876	eval {	3458	warn "syncing database to disk";
		3459	BDB::db_env_txn_checkpoint $DB_ENV;
		3460
1877	# if anything goes wrong in here, we should simply crash as we already saved	3461	# if anything goes wrong in here, we should simply crash as we already saved
1878		3462
1879	# cancel all watchers	3463	warn "flushing outstanding aio requests";
1880	for (Event::all_watchers) {	3464	for (;;) {
1881	$_->cancel if $_->data & WF_AUTOCANCEL;	3465	BDB::flush;
		3466	IO::AIO::flush;
		3467	Coro::cede_notself;
		3468	last unless IO::AIO::nreqs || BDB::nreqs;
		3469	warn "iterate...";
1882	}	3470	}
1883		3471
		3472	++$RELOAD;
		3473
1884	# cancel all extension coros	3474	warn "cancelling all extension coros";
1885	$_->cancel for values %EXT_CORO;	3475	$_->cancel for values %EXT_CORO;
1886	%EXT_CORO = ();	3476	%EXT_CORO = ();
1887		3477
1888	# unload all extensions	3478	warn "removing commands";
1889	for (@exts) {	3479	%COMMAND = ();
		3480
		3481	warn "removing ext/exti commands";
		3482	%EXTCMD = ();
		3483	%EXTICMD = ();
		3484
		3485	warn "unloading/nuking all extensions";
		3486	for my $pkg (@EXTS) {
1890	warn "unloading <$_>";	3487	warn "... unloading $pkg";
1891	unload_extension $_;	3488
		3489	if (my $cb = $pkg->can ("unload")) {
		3490	eval {
		3491	$cb->($pkg);
		3492	1
		3493	} or warn "$pkg unloaded, but with errors: $@";
1892	}	3494	}
1893		3495
		3496	warn "... nuking $pkg";
		3497	Symbol::delete_package $pkg;
		3498	}
		3499
1894	# unload all modules loaded from $LIBDIR	3500	warn "unloading all perl modules loaded from $LIBDIR";
1895	while (my ($k, $v) = each %INC) {	3501	while (my ($k, $v) = each %INC) {
1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3502	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1897		3503
1898	warn "removing <$k>";	3504	warn "... unloading $k";
1899	delete $INC{$k};	3505	delete $INC{$k};
1900		3506
1901	$k =~ s/\.pm$//;	3507	$k =~ s/\.pm$//;
1902	$k =~ s/\//::/g;	3508	$k =~ s/\//::/g;
1903		3509
…		…
1906	}	3512	}
1907		3513
1908	Symbol::delete_package $k;	3514	Symbol::delete_package $k;
1909	}	3515	}
1910		3516
1911	# sync database to disk
1912	cf::db_sync;
1913	IO::AIO::flush;
1914
1915	# get rid of safe::, as good as possible	3517	warn "getting rid of safe::, as good as possible";
1916	Symbol::delete_package "safe::$_"	3518	Symbol::delete_package "safe::$_"
1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3519	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1918		3520
1919	# remove register_script_function callbacks
1920	# TODO
1921
1922	# unload cf.pm "a bit"	3521	warn "unloading cf.pm \"a bit\"";
1923	delete $INC{"cf.pm"};	3522	delete $INC{"cf.pm"};
		3523	delete $INC{"cf/pod.pm"};
1924		3524
1925	# don't, removes xs symbols, too,	3525	# don't, removes xs symbols, too,
1926	# and global variables created in xs	3526	# and global variables created in xs
1927	#Symbol::delete_package __PACKAGE__;	3527	#Symbol::delete_package __PACKAGE__;
1928		3528
1929	# reload cf.pm	3529	warn "unload completed, starting to reload now";
		3530
1930	warn "reloading cf.pm";	3531	warn "reloading cf.pm";
1931	require cf;	3532	require cf;
1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3533	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1933		3534
1934	# load config and database again	3535	warn "loading config and database again";
1935	cf::cfg_load;	3536	cf::reload_config;
1936	cf::db_load;
1937		3537
1938	# load extensions
1939	warn "load extensions";	3538	warn "loading extensions";
1940	cf::load_extensions;	3539	cf::load_extensions;
1941		3540
1942	# reattach attachments to objects	3541	warn "reattaching attachments to objects/players";
1943	warn "reattach";	3542	_global_reattach; # objects, sockets
1944	_global_reattach;	3543	warn "reattaching attachments to maps";
1945	};	3544	reattach $_ for values %MAP;
		3545	warn "reattaching attachments to players";
		3546	reattach $_ for values %PLAYER;
1946		3547
1947	if ($@) {	3548	warn "leaving sync_job";
		3549
		3550	1
		3551	} or do {
1948	warn $@;	3552	warn $@;
1949	warn "error while reloading, exiting.";	3553	warn "error while reloading, exiting.";
1950	exit 1;	3554	exit 1;
1951	}	3555	};
1952		3556
1953	warn "reloaded successfully";	3557	warn "reloaded";
1954	};	3558	};
1955		3559
1956	#############################################################################	3560	our $RELOAD_WATCHER; # used only during reload
1957		3561
1958	unless ($LINK_MAP) {	3562	sub reload_perl() {
1959	$LINK_MAP = cf::map::new;	3563	# doing reload synchronously and two reloads happen back-to-back,
		3564	# coro crashes during coro_state_free->destroy here.
1960		3565
1961	$LINK_MAP->width (41);	3566	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
1962	$LINK_MAP->height (41);	3567	do_reload_perl;
1963	$LINK_MAP->alloc;	3568	undef $RELOAD_WATCHER;
1964	$LINK_MAP->path ("{link}");	3569	};
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,
1971	cb => sub {
1972	$_[0]->w->cancel;
1973
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	});
1992
1993	$LINK_MAP->{deny_save} = 1;
1994	$LINK_MAP->{deny_reset} = 1;
1995
1996	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1997	}	3570	}
1998
1999	register "<global>", __PACKAGE__;
2000		3571
2001	register_command "reload" => sub {	3572	register_command "reload" => sub {
2002	my ($who, $arg) = @_;	3573	my ($who, $arg) = @_;
2003		3574
2004	if ($who->flag (FLAG_WIZ)) {	3575	if ($who->flag (FLAG_WIZ)) {
2005	$who->message ("start of reload.");
2006	reload;
2007	$who->message ("end of reload.");	3576	$who->message ("reloading server.");
		3577	async {
		3578	$Coro::current->{desc} = "perl_reload";
		3579	reload_perl;
		3580	};
2008	}	3581	}
2009	};	3582	};
2010		3583
2011	unshift @INC, $LIBDIR;	3584	unshift @INC, $LIBDIR;
2012		3585
2013	$TICK_WATCHER = Event->timer (	3586	my $bug_warning = 0;
2014	reentrant => 0,	3587
2015	prio => 0,	3588	our @WAIT_FOR_TICK;
2016	at => $NEXT_TICK || $TICK,	3589	our @WAIT_FOR_TICK_BEGIN;
2017	data => WF_AUTOCANCEL,	3590
2018	cb => sub {	3591	sub wait_for_tick {
2019	unless ($FREEZE) {	3592	return unless $TICK_WATCHER->is_active;
		3593	return if $Coro::current == $Coro::main;
		3594
		3595	my $signal = new Coro::Signal;
		3596	push @WAIT_FOR_TICK, $signal;
		3597	$signal->wait;
		3598	}
		3599
		3600	sub wait_for_tick_begin {
		3601	return unless $TICK_WATCHER->is_active;
		3602	return if $Coro::current == $Coro::main;
		3603
		3604	my $signal = new Coro::Signal;
		3605	push @WAIT_FOR_TICK_BEGIN, $signal;
		3606	$signal->wait;
		3607	}
		3608
		3609	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3610	if ($Coro::current != $Coro::main) {
		3611	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3612	unless ++$bug_warning > 10;
		3613	return;
		3614	}
		3615
		3616	$NOW = $tick_start = EV::now;
		3617
2020	cf::server_tick; # one server iteration	3618	cf::server_tick; # one server iteration
		3619
2021	$RUNTIME += $TICK;	3620	$RUNTIME += $TICK;
2022	}	3621	$NEXT_TICK = $_[0]->at;
2023		3622
2024	$NEXT_TICK += $TICK;	3623	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2025		3624	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2026	# if we are delayed by four ticks or more, skip them all	3625	Coro::async_pool {
2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3626	$Coro::current->{desc} = "runtime saver";
2028
2029	$TICK_WATCHER->at ($NEXT_TICK);
2030	$TICK_WATCHER->start;
2031	},
2032	);
2033
2034	IO::AIO::max_poll_time $TICK * 0.2;
2035
2036	Event->io (
2037	fd => IO::AIO::poll_fileno,
2038	poll => 'r',
2039	prio => 5,
2040	data => WF_AUTOCANCEL,
2041	cb => \&IO::AIO::poll_cb,
2042	);
2043
2044	Event->timer (
2045	data => WF_AUTOCANCEL,
2046	after => 0,
2047	interval => 10,
2048	cb => sub {
2049	(Coro::unblock_sub {
2050	write_runtime	3627	write_runtime
2051	or warn "ERROR: unable to write runtime file: $!";	3628	or warn "ERROR: unable to write runtime file: $!";
2052	})->();	3629	};
2053	},	3630	}
2054	);	3631
		3632	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3633	$sig->send;
		3634	}
		3635	while (my $sig = shift @WAIT_FOR_TICK) {
		3636	$sig->send;
		3637	}
		3638
		3639	$LOAD = ($NOW - $tick_start) / $TICK;
		3640	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3641
		3642	_post_tick;
		3643	};
		3644	$TICK_WATCHER->priority (EV::MAXPRI);
		3645
		3646	{
		3647	# configure BDB
		3648
		3649	BDB::min_parallel 8;
		3650	BDB::max_poll_reqs $TICK * 0.1;
		3651	$Coro::BDB::WATCHER->priority (1);
		3652
		3653	unless ($DB_ENV) {
		3654	$DB_ENV = BDB::db_env_create;
		3655	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3656	| BDB::LOG_AUTOREMOVE, 1);
		3657	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3658	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3659
		3660	cf::sync_job {
		3661	eval {
		3662	BDB::db_env_open
		3663	$DB_ENV,
		3664	$BDBDIR,
		3665	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3666	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3667	0666;
		3668
		3669	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3670	};
		3671
		3672	cf::cleanup "db_env_open(db): $@" if $@;
		3673	};
		3674	}
		3675
		3676	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3677	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3678	};
		3679	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3680	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3681	};
		3682	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3683	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3684	};
		3685	}
		3686
		3687	{
		3688	# configure IO::AIO
		3689
		3690	IO::AIO::min_parallel 8;
		3691	IO::AIO::max_poll_time $TICK * 0.1;
		3692	$Coro::AIO::WATCHER->priority (1);
		3693	}
		3694
		3695	my $_log_backtrace;
		3696
		3697	sub _log_backtrace {
		3698	my ($msg, @addr) = @_;
		3699
		3700	$msg =~ s/\n//;
		3701
		3702	# limit the # of concurrent backtraces
		3703	if ($_log_backtrace < 2) {
		3704	++$_log_backtrace;
		3705	async {
		3706	$Coro::current->{desc} = "abt $msg";
		3707
		3708	my @bt = fork_call {
		3709	@addr = map { sprintf "%x", $_ } @addr;
		3710	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3711	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3712	or die "addr2line: $!";
		3713
		3714	my @funcs;
		3715	my @res = <$fh>;
		3716	chomp for @res;
		3717	while (@res) {
		3718	my ($func, $line) = splice @res, 0, 2, ();
		3719	push @funcs, "[$func] $line";
		3720	}
		3721
		3722	@funcs
		3723	};
		3724
		3725	LOG llevInfo, "[ABT] $msg\n";
		3726	LOG llevInfo, "[ABT] $_\n" for @bt;
		3727	--$_log_backtrace;
		3728	};
		3729	} else {
		3730	LOG llevInfo, "[ABT] $msg\n";
		3731	LOG llevInfo, "[ABT] [suppressed]\n";
		3732	}
		3733	}
		3734
		3735	# load additional modules
		3736	use cf::pod;
		3737
		3738	END { cf::emergency_save }
2055		3739
2056	1	3740	1
2057		3741

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