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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.110 by root, Mon Jan 1 11:21:55 2007 UTC vs.
Revision 1.408 by root, Mon Jan 14 10:12:12 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 ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	429	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	430	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		431	acceptable.
191		432
192	If it must be done, put the blocking parts into C<sync_job>. This will run	433	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	434	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	435	server will be frozen during this time, so the block should either finish
195	fast or be very important.	436	fast or be very important.
…		…
197	=cut	438	=cut
198		439
199	sub sync_job(&) {	440	sub sync_job(&) {
200	my ($job) = @_;	441	my ($job) = @_;
201		442
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	443	if ($Coro::current == $Coro::main) {
		444	my $time = EV::time;
		445
		446	# this is the main coro, too bad, we have to block
		447	# till the operation succeeds, freezing the server :/
		448
		449	LOG llevError, Carp::longmess "sync job";#d#
		450
212	# TODO: use suspend/resume instead	451	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	452	# (but this is cancel-safe)
		453	my $freeze_guard = freeze_mainloop;
		454
		455	my $busy = 1;
		456	my @res;
		457
		458	(async {
		459	$Coro::current->desc ("sync job coro");
		460	@res = eval { $job->() };
		461	warn $@ if $@;
		462	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	463	})->prio (Coro::PRIO_MAX);
		464
215	while ($busy) {	465	while ($busy) {
		466	if (Coro::nready) {
216	Coro::cede_notself;	467	Coro::cede_notself;
217	Event::one_event unless Coro::nready;	468	} else {
		469	EV::loop EV::LOOP_ONESHOT;
218	}	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
		479
		480	wantarray ? @res : $res[0]
219	} else {	481	} else {
220	$coro->join;	482	# we are in another coroutine, how wonderful, everything just works
		483
		484	$job->()
221	}	485	}
222
223	wantarray ? @res : $res[0]
224	}	486	}
225		487
226	=item $coro = cf::coro { BLOCK }	488	=item $coro = cf::async_ext { BLOCK }
227		489
228	Creates and returns a new coro. This coro is automcatially being canceled	490	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	491	extension calling this is being unloaded.
230		492
231	=cut	493	=cut
232		494
233	sub coro(&) {	495	sub async_ext(&) {
234	my $cb = shift;	496	my $cb = shift;
235		497
236	my $coro; $coro = async {	498	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		499
243	$coro->on_destroy (sub {	500	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	501	delete $EXT_CORO{$coro+0};
245	});	502	});
246	$EXT_CORO{$coro+0} = $coro;	503	$EXT_CORO{$coro+0} = $coro;
247		504
248	$coro	505	$coro
249	}	506	}
250		507
251	sub write_runtime {	508	=item fork_call { }, $args
252	my $runtime = cf::localdir . "/runtime";
253		509
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	510	Executes the given code block with the given arguments in a seperate
255	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.
256		514
257	my $value = $cf::RUNTIME;	515	=cut
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;
260		516
261	aio_fsync $fh	517	sub fork_call(&@) {
262	and return;	518	my ($cb, @args) = @_;
263		519
264	close $fh	520	# we seemingly have to make a local copy of the whole thing,
265	or return;	521	# otherwise perl prematurely frees the stuff :/
		522	# TODO: investigate and fix (likely this will be rather laborious)
266		523
267	aio_rename "$runtime~", $runtime	524	my @res = Coro::Util::fork_eval {
268	and return;	525	reset_signals;
		526	&$cb
		527	}, @args;
269		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($$) {
		574	my $key = "$_[0]/$_[1]";
		575
		576	cf::sync_job {
		577	BDB::db_get $DB, undef, $key, my $data;
		578
		579	$! ? ()
		580	: $data
270	1	581	}
		582	}
		583
		584	sub db_put($$$) {
		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 => $type });
271	}	668	}
272		669
273	=back	670	=back
274		671
275	=cut	672	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		673
387	#############################################################################	674	#############################################################################
388		675
389	=head2 ATTACHABLE OBJECTS	676	=head2 ATTACHABLE OBJECTS
390		677
…		…
392	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")
393	to it. All such attachable objects support the following methods.	680	to it. All such attachable objects support the following methods.
394		681
395	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>
396	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
397	crossfire+).	684	Deliantra).
398		685
399	=over 4	686	=over 4
400		687
401	=item $attachable->attach ($attachment, key => $value...)	688	=item $attachable->attach ($attachment, key => $value...)
402		689
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	803	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	804	our @CB_MAP = ();
518		805
519	my %attachment;	806	my %attachment;
520		807
		808	sub cf::attachable::thawer_merge {
		809	# simply override everything except _meta
		810	local $_[0]{_meta};
		811	%{$_[0]} = %{$_[1]};
		812	}
		813
521	sub _attach_cb($$$$) {	814	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	815	my ($registry, $event, $prio, $cb) = @_;
523		816
524	use sort 'stable';	817	use sort 'stable';
525		818
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	852	$registry = $CB_TYPE[$object_type] ||= [];
560		853
561	} elsif ($type eq "subtype") {	854	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	855	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	856	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	857	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		858
566	} elsif ($type eq "package") {	859	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	860	my $pkg = shift @arg;
568		861
569	while (my ($name, $id) = each %cb_id) {	862	while (my ($name, $id) = each %cb_id) {
…		…
598	_attach $registry, $klass, @attach;	891	_attach $registry, $klass, @attach;
599	}	892	}
600		893
601	$obj->{$name} = \%arg;	894	$obj->{$name} = \%arg;
602	} else {	895	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	896	warn "object uses attachment '$name' which is not available, postponing.\n";
604	}	897	}
605		898
606	$obj->{_attachment}{$name} = undef;	899	$obj->{_attachment}{$name} = undef;
607	}	900	}
608		901
…		…
610	if (ref $_[0]) {	903	if (ref $_[0]) {
611	_object_attach @_;	904	_object_attach @_;
612	} else {	905	} else {
613	_attach shift->_attach_registry, @_;	906	_attach shift->_attach_registry, @_;
614	}	907	}
		908	_recalc_want;
615	};	909	};
616		910
617	# all those should be optimised	911	# all those should be optimised
618	sub cf::attachable::detach {	912	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	913	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	916	delete $obj->{_attachment}{$name};
623	reattach ($obj);	917	reattach ($obj);
624	} else {	918	} else {
625	Carp::croak "cannot, currently, detach class attachments";	919	Carp::croak "cannot, currently, detach class attachments";
626	}	920	}
		921	_recalc_want;
627	};	922	};
628		923
629	sub cf::attachable::attached {	924	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	925	my ($obj, $name) = @_;
631		926
…		…
646	";	941	";
647	die if $@;	942	die if $@;
648	}	943	}
649		944
650	our $override;	945	our $override;
651	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?
652		947
653	sub override {	948	sub override {
654	$override = 1;	949	$override = 1;
655	@invoke_results = ();	950	@INVOKE_RESULTS = (@_);
656	}	951	}
657		952
658	sub do_invoke {	953	sub do_invoke {
659	my $event = shift;	954	my $event = shift;
660	my $callbacks = shift;	955	my $callbacks = shift;
661		956
662	@invoke_results = ();	957	@INVOKE_RESULTS = ();
663		958
664	local $override;	959	local $override;
665		960
666	for (@$callbacks) {	961	for (@$callbacks) {
667	eval { &{$_->[1]} };	962	eval { &{$_->[1]} };
…		…
676	}	971	}
677		972
678	0	973	0
679	}	974	}
680		975
681	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	976	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
682		977
683	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	978	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
684		979
685	Generate an object-specific event with the given arguments.	980	Generate an object-specific event with the given arguments.
686		981
687	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
688	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
689	results (if you must, access C<@cf::invoke_results> directly).	984	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
690		985
691	=back	986	=back
692		987
693	=cut	988	=cut
694		989
695	#############################################################################	990	#############################################################################
696	# object support	991	# object support
		992
		993	sub _object_equal($$);
		994	sub _object_equal($$) {
		995	my ($a, $b) = @_;
		996
		997	return 0 unless (ref $a) eq (ref $b);
		998
		999	if ("HASH" eq ref $a) {
		1000	my @ka = keys %$a;
		1001	my @kb = keys %$b;
		1002
		1003	return 0 if @ka != @kb;
		1004
		1005	for (0 .. $#ka) {
		1006	return 0 unless $ka[$_] eq $kb[$_];
		1007	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1008	}
		1009
		1010	} elsif ("ARRAY" eq ref $a) {
		1011
		1012	return 0 if @$a != @$b;
		1013
		1014	for (0 .. $#$a) {
		1015	return 0 unless _object_equal $a->[$_], $b->[$_];
		1016	}
		1017
		1018	} elsif ($a ne $b) {
		1019	return 0;
		1020	}
		1021
		1022	1
		1023	}
		1024
		1025	our $SLOW_MERGES;#d#
		1026	sub _can_merge {
		1027	my ($ob1, $ob2) = @_;
		1028
		1029	++$SLOW_MERGES;#d#
		1030
		1031	# we do the slow way here
		1032	return _object_equal $ob1, $ob2
		1033	}
697		1034
698	sub reattach {	1035	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	1036	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	1037	my ($obj) = @_;
		1038
		1039	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		1040
702	my $registry = $obj->registry;	1041	my $registry = $obj->registry;
703		1042
704	@$registry = ();	1043	@$registry = ();
705		1044
…		…
720	cf::attachable->attach (	1059	cf::attachable->attach (
721	prio => -1000000,	1060	prio => -1000000,
722	on_instantiate => sub {	1061	on_instantiate => sub {
723	my ($obj, $data) = @_;	1062	my ($obj, $data) = @_;
724		1063
725	$data = from_json $data;	1064	$data = decode_json $data;
726		1065
727	for (@$data) {	1066	for (@$data) {
728	my ($name, $args) = @$_;	1067	my ($name, $args) = @$_;
729		1068
730	$obj->attach ($name, %{$args || {} });	1069	$obj->attach ($name, %{$args || {} });
…		…
746	sub object_freezer_save {	1085	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1086	my ($filename, $rdata, $objs) = @_;
748		1087
749	sync_job {	1088	sync_job {
750	if (length $$rdata) {	1089	if (length $$rdata) {
		1090	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1091	warn sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1092	$decname, length $$rdata, scalar @$objs;
753		1093
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1094	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1095	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1096	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	1097	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	1098	close $fh;
759		1099
760	if (@$objs) {	1100	if (@$objs) {
761	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) {
762	chmod SAVE_MODE, $fh;	1102	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1103	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1104	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	1105	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	1106	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1107	aio_rename "$filename.pst~", "$filename.pst";
768	}	1108	}
769	} else {	1109	} else {
770	aio_unlink "$filename.pst";	1110	aio_unlink "$filename.pst";
…		…
776	}	1116	}
777	} else {	1117	} else {
778	aio_unlink $filename;	1118	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1119	aio_unlink "$filename.pst";
780	}	1120	}
781	}	1121	};
782	}	1122	}
783		1123
784	sub object_freezer_as_string {	1124	sub object_freezer_as_string {
785	my ($rdata, $objs) = @_;	1125	my ($rdata, $objs) = @_;
786		1126
…		…
798	or return;	1138	or return;
799		1139
800	unless (aio_stat "$filename.pst") {	1140	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	1141	(aio_load "$filename.pst", $av) >= 0
802	or return;	1142	or return;
		1143
803	$av = eval { (Storable::thaw <$av>)->{objs} };	1144	my $st = eval { Coro::Storable::thaw $av };
		1145	$av = $st->{objs};
804	}	1146	}
805		1147
		1148	utf8::decode (my $decname = $filename);
		1149	warn sprintf "loading %s (%d,%d)\n",
		1150	$decname, length $data, scalar @{$av || []};
		1151
806	return ($data, $av);	1152	($data, $av)
807	}	1153	}
		1154
		1155	=head2 COMMAND CALLBACKS
		1156
		1157	=over 4
		1158
		1159	=cut
808		1160
809	#############################################################################	1161	#############################################################################
810	# command handling &c	1162	# command handling &c
811		1163
812	=item cf::register_command $name => \&callback($ob,$args);	1164	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1177	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1178	}
827		1179
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1180	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1181
830	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.
831		1187
832	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
833	called.	1189	called.
834		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
835	=cut	1202	=cut
836		1203
837	sub register_extcmd {	1204	sub register_extcmd {
838	my ($name, $cb) = @_;	1205	my ($name, $cb) = @_;
839		1206
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	1207	$EXTCMD{$name} = $cb;
		1208	}
		1209
		1210	sub register_exticmd {
		1211	my ($name, $cb) = @_;
		1212
		1213	$EXTICMD{$name} = $cb;
844	}	1214	}
845		1215
846	cf::player->attach (	1216	cf::player->attach (
847	on_command => sub {	1217	on_command => sub {
848	my ($pl, $name, $params) = @_;	1218	my ($pl, $name, $params) = @_;
…		…
857	cf::override;	1227	cf::override;
858	},	1228	},
859	on_extcmd => sub {	1229	on_extcmd => sub {
860	my ($pl, $buf) = @_;	1230	my ($pl, $buf) = @_;
861		1231
862	my $msg = eval { from_json $buf };	1232	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
863		1233
864	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
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1242	if (my $cb = $EXTCMD{$type}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	1243	@reply = $cb->($pl, @payload);
867	$pl->ext_reply ($msg->{msgid}, %reply);
868	}
869	}	1244	}
		1245
		1246	$pl->ext_reply ($reply, @reply)
		1247	if $reply;
		1248
870	} else {	1249	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1250	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
872	}	1251	}
873		1252
874	cf::override;	1253	cf::override;
875	},	1254	},
876	);	1255	);
877		1256
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	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($) {
885	my ($path) = @_;	1696	my ($path) = @_;
886		1697
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1698	my ($match, $specificity);
888	my $base = $1;
889	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";
892		1699
893	warn "loading '$path' into '$pkg'\n";	1700	for my $region (list) {
894		1701	if ($region->{match} && $path =~ $region->{match}) {
895	open my $fh, "<:utf8", $path	1702	($match, $specificity) = ($region, $region->specificity)
896	or die "$path: $!";	1703	if $region->specificity > $specificity;
897		1704	}
898	my $source =
899	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })
902	. "\n};\n1";
903
904	eval $source
905	or die $@ ? "$path: $@\n"
906	: "extension disabled.\n";
907
908	push @exts, $pkg;
909	$ext_pkg{$base} = $pkg;
910
911	# no strict 'refs';
912	# @{"$pkg\::ISA"} = ext::;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	1705	}
927		1706
928	# remove commands	1707	$match
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}
953
954	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;
957	eval {
958	load_extension $ext;
959	1
960	} or warn "$ext not loaded: $@";
961	}
962	}
963
964	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001
1002	=head2 CORE EXTENSIONS
1003
1004	Functions and methods that extend core crossfire objects.
1005
1006	=head3 cf::player
1007
1008	=over 4
1009
1010	=item cf::player::exists $login
1011
1012	Returns true when the given account exists.
1013
1014	=cut
1015
1016	sub cf::player::exists($) {
1017	cf::player::find $_[0]
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1019	}
1020
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022
1023	Sends an ext reply to the player.
1024
1025	=cut
1026
1027	sub cf::player::ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;
1029
1030	$msg{msgid} = $id;
1031
1032	$self->send ("ext " . to_json \%msg);
1033	}	1708	}
1034		1709
1035	=back	1710	=back
1036
1037		1711
1038	=head3 cf::map	1712	=head3 cf::map
1039		1713
1040	=over 4	1714	=over 4
1041		1715
…		…
1044	package cf::map;	1718	package cf::map;
1045		1719
1046	use Fcntl;	1720	use Fcntl;
1047	use Coro::AIO;	1721	use Coro::AIO;
1048		1722
		1723	use overload
		1724	'""' => \&as_string,
		1725	fallback => 1;
		1726
1049	our $MAX_RESET = 7200;	1727	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1728	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1729
1054	sub generate_random_map {	1730	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1731	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1732	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1733	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1734	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1735	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1736	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1737	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1738	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1739	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1740	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1741	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$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},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1743	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(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"
1071	}	1873	}
1072		1874
1073	# and all this just because we cannot iterate over	1875	# and all this just because we cannot iterate over
1074	# all maps in C++...	1876	# all maps in C++...
1075	sub change_all_map_light {	1877	sub change_all_map_light {
1076	my ($change) = @_;	1878	my ($change) = @_;
1077		1879
1078	$_->change_map_light ($change) for values %cf::MAP;	1880	$_->change_map_light ($change)
		1881	for grep $_->outdoor, values %cf::MAP;
1079	}	1882	}
1080		1883
		1884	sub decay_objects {
		1885	my ($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
1081	sub try_load_header($) {	1900	sub load_header_from($) {
1082	my ($path) = @_;	1901	my ($self, $path) = @_;
1083		1902
1084	utf8::encode $path;	1903	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1904	my $f = new_from_file cf::object::thawer $path
1086	or return;	1905	or return;
1087		1906
1088	my $map = cf::map::new	1907	$self->_load_header ($f)
1089	or return;	1908	or return;
1090		1909
1091	$map->load_header ($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
1092	or return;	1956	or return;
		1957	$self->prepare_orig;
		1958	}
1093		1959
1094	$map->{load_path} = $path;	1960	$self->{deny_reset} = 1
1095	use Data::Dumper; warn Dumper $map;#d#	1961	if $self->no_reset;
1096		1962
1097	$map	1963	$self->default_region (cf::region::find_by_path $self->{path})
1098	}	1964	unless $self->default_region;
1099		1965
		1966	1
		1967	}
		1968
		1969	sub find;
1100	sub find_map {	1970	sub find {
1101	my ($path, $origin) = @_;	1971	my ($path, $origin) = @_;
1102		1972
1103	#warn "find_map<$path,$origin>\n";#d#	1973	$path = normalise $path, $origin && $origin->path;
1104		1974
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1975	cf::lock_wait "map_data:$path";#d#remove
1106	my $key = $path->as_string;	1976	cf::lock_wait "map_find:$path";
1107		1977
1108	$cf::MAP{$key} || do {	1978	$cf::MAP{$path} || do {
1109	# do it the slow way	1979	my $guard1 = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1980	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1111		1981
1112	if ($map) {	1982	my $map = new_from_path cf::map $path
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1983	or return;
1124		1984
1125	$map->{instantiate_time} = $cf::RUNTIME;
1126	$map->instantiate;
1127
1128	# per-player maps become, after loading, normal maps
1129	$map->per_player (0) if $path->{user_rel};
1130	}
1131
1132	$map->path ($key);
1133	$map->{path} = $path;
1134	$map->last_access ($cf::RUNTIME);	1985	$map->{last_save} = $cf::RUNTIME;
1135		1986
1136	$map->reset if $map->should_reset;	1987	$map->load_header
		1988	or return;
1137		1989
		1990	if ($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;
		1995	$map->reset;
		1996	return find $path;
		1997	}
		1998
1138	$cf::MAP{$key} = $map	1999	$cf::MAP{$path} = $map
1139	}	2000	}
1140	}	2001	}
		2002
		2003	sub pre_load { }
		2004	sub post_load { }
1141		2005
1142	sub load {	2006	sub load {
1143	my ($self) = @_;	2007	my ($self) = @_;
1144		2008
1145	return if $self->in_memory != cf::MAP_SWAPPED;	2009	local $self->{deny_reset} = 1; # loading can take a long time
1146
1147	$self->in_memory (cf::MAP_LOADING);
1148		2010
1149	my $path = $self->{path};	2011	my $path = $self->{path};
1150		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
1151	$self->alloc;	2021	$self->alloc;
1152	$self->load_objects ($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)
1153	or return;	2029	or return;
1154		2030
		2031	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		2032	if delete $self->{load_original};
		2033
1155	if (my $uniq = $path->uniq_path) {	2034	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	2035	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	2036	unless (aio_stat $uniq) {
		2037	if (my $f = new_from_file cf::object::thawer $uniq) {
1158	$self->clear_unique_items;	2038	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	2039	$self->_load_objects ($f);
		2040	$f->resolve_delayed_derefs;
		2041	}
1160	}	2042	}
1161	}	2043	}
1162		2044
		2045	$f->resolve_delayed_derefs;
		2046
		2047	cf::cede_to_tick;
1163	# now do the right thing for maps	2048	# now do the right thing for maps
1164	$self->link_multipart_objects;	2049	$self->link_multipart_objects;
1165
1166	if ($self->{path}->is_style_map) {
1167	$self->{deny_save} = 1;
1168	$self->{deny_reset} = 1;
1169	} else {
1170	$self->fix_auto_apply;
1171	$self->decay_objects;
1172	$self->update_buttons;
1173	$self->set_darkness_map;
1174	$self->difficulty ($self->estimate_difficulty)	2050	$self->difficulty ($self->estimate_difficulty)
1175	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;
1176	$self->activate;	2061	$self->activate;
1177	}	2062	}
1178		2063
		2064	$self->{last_save} = $cf::RUNTIME;
		2065	$self->last_access ($cf::RUNTIME);
		2066
1179	$self->in_memory (cf::MAP_IN_MEMORY);	2067	$self->in_memory (cf::MAP_IN_MEMORY);
1180	}	2068	}
1181		2069
1182	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	$neigh->load;
		2108	}
		2109	}
		2110
		2111	sub find_sync {
1183	my ($path, $origin) = @_;	2112	my ($path, $origin) = @_;
1184		2113
1185	#warn "load_map_sync<$path, $origin>\n";#d#	2114	cf::sync_job { find $path, $origin }
		2115	}
1186		2116
1187	cf::sync_job {	2117	sub do_load_sync {
1188	my $map = cf::map::find_map $path, $origin	2118	my ($map) = @_;
1189	or return;	2119
1190	$map->load;	2120	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1191	$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;
1192	}	2153	};
		2154	$MAP_PREFETCHER->prio (6);
		2155
		2156	()
1193	}	2157	}
1194		2158
1195	sub save {	2159	sub save {
1196	my ($self) = @_;	2160	my ($self) = @_;
1197		2161
1198	my $save = $self->{path}->save_path; utf8::encode $save;	2162	my $lock = cf::lock_acquire "map_data:$self->{path}";
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		2163
1201	$self->{last_save} = $cf::RUNTIME;	2164	$self->{last_save} = $cf::RUNTIME;
1202		2165
1203	return unless $self->dirty;	2166	return unless $self->dirty;
1204		2167
		2168	my $save = $self->save_path; utf8::encode $save;
		2169	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2170
1205	$self->{load_path} = $save;	2171	$self->{load_path} = $save;
1206		2172
1207	return if $self->{deny_save};	2173	return if $self->{deny_save};
1208		2174
1209	warn "saving map ", $self->path;	2175	local $self->{last_access} = $self->last_access;#d#
		2176
		2177	cf::async {
		2178	$Coro::current->{desc} = "map player save";
		2179	$_->contr->save for $self->players;
		2180	};
1210		2181
1211	if ($uniq) {	2182	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2183	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);	2184	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {	2185	} else {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2186	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}	2187	}
1217	}	2188	}
1218		2189
1219	sub swap_out {	2190	sub swap_out {
1220	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}";
1221		2197
1222	return if $self->players;	2198	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;	2199	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};	2200	return if $self->{deny_save};
1225		2201
		2202	$self->in_memory (cf::MAP_SWAPPED);
		2203
1226	$self->save;	2204	$self->deactivate;
		2205	$_->clear_links_to ($self) for values %cf::MAP;
1227	$self->clear;	2206	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	2207	}
		2208
		2209	sub reset_at {
		2210	my ($self) = @_;
		2211
		2212	# TODO: safety, remove and allow resettable per-player maps
		2213	return 1e99 if $self->{deny_reset};
		2214
		2215	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2216	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2217
		2218	$time + $to
1229	}	2219	}
1230		2220
1231	sub should_reset {	2221	sub should_reset {
1232	my ($map) = @_;	2222	my ($self) = @_;
1233		2223
1234	# TODO: safety, remove and allow resettable per-player maps	2224	$self->reset_at <= $cf::RUNTIME
1235	return if $map->{path}{user_rel};#d#
1236	return if $map->{deny_reset};
1237	#return unless $map->reset_timeout;
1238
1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1240
1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
1242	}	2225	}
1243		2226
1244	sub reset {	2227	sub reset {
1245	my ($self) = @_;	2228	my ($self) = @_;
1246		2229
		2230	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2231
1247	return if $self->players;	2232	return if $self->players;
1248	return if $self->{path}{user_rel};#d#
1249		2233
1250	warn "resetting map ", $self->path;#d#	2234	warn "resetting map ", $self->path;
1251		2235
1252	utf8::encode (my $save = $self->{path}->save_path);	2236	$self->in_memory (cf::MAP_SWAPPED);
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255		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	}
		2245
		2246	delete $cf::MAP{$self->path};
		2247
		2248	$self->deactivate;
1256	$_->clear_links_to ($self) for values %cf::MAP;	2249	$_->clear_links_to ($self) for values %cf::MAP;
1257
1258	$self->clear;	2250	$self->clear;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}
1262		2251
1263	sub customise_for {	2252	$self->unlink_save;
1264	my ($map, $ob) = @_;	2253	$self->destroy;
		2254	}
1265		2255
1266	if ($map->per_player) {	2256	my $nuke_counter = "aaaa";
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2257
		2258	sub nuke {
		2259	my ($self) = @_;
		2260
1268	}	2261	{
		2262	my $lock = cf::lock_acquire "map_data:$self->{path}";
1269		2263
1270	$map	2264	delete $cf::MAP{$self->path};
1271	}
1272		2265
1273	sub emergency_save {	2266	$self->unlink_save;
1274	local $cf::FREEZE = 1;
1275		2267
1276	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++));
1277		2273
1278	cf::sync_job {	2274	$cf::MAP{$self->path} = $self;
1279	warn "begin emergency map save\n";
1280	$_->save for values %cf::MAP;
1281	};	2275	}
1282		2276
1283	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	]
1284	}	2332	}
1285		2333
1286	package cf;	2334	package cf;
1287		2335
1288	=back	2336	=back
1289		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
1290		2392
1291	=head3 cf::object::player	2393	=head3 cf::object::player
1292		2394
1293	=over 4	2395	=over 4
1294		2396
…		…
1308		2410
1309	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2411	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1310		2412
1311	if ($self->{record_replies}) {	2413	if ($self->{record_replies}) {
1312	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2414	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2415
1313	} 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 {
1314	$msg = $npc->name . " says: $msg" if $npc;	2424	$msg = $npc->name . " says: $msg" if $npc;
1315	$self->message ($msg, $flags);	2425	$self->message ($msg, $flags);
		2426	}
1316	}	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 (@_);
1317	}	2438	}
1318		2439
1319	=item $player_object->may ("access")	2440	=item $player_object->may ("access")
1320		2441
1321	Returns wether the given player is authorized to access resource "access"	2442	Returns wether the given player is authorized to access resource "access"
…		…
1330	(ref $cf::CFG{"may_$access"}	2451	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2452	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	2453	: $cf::CFG{"may_$access"})
1333	}	2454	}
1334		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	$LINK_MAP
		2484	}
		2485
1335	sub cf::object::player::enter_link {	2486	sub cf::object::player::enter_link {
1336	my ($self) = @_;	2487	my ($self) = @_;
1337		2488
1338	return if $self->map == $LINK_MAP;
1339
1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1341	if $self->map;
1342
1343	$self->enter_map ($LINK_MAP, 20, 20);
1344	$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);
1345	}	2497	}
1346		2498
1347	sub cf::object::player::leave_link {	2499	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	2500	my ($self, $map, $x, $y) = @_;
1349		2501
		2502	return unless $self->contr->active;
		2503
1350	my $link_pos = delete $self->{_link_pos};	2504	my $link_pos = delete $self->{_link_pos};
1351		2505
1352	unless ($map) {	2506	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	2507	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	2508	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	2509	$map = cf::map::find $map;
1358		2510
1359	unless ($map) {	2511	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	2512	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	2513	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	2514	or die "FATAL: cannot load emergency map\n";
1363	}	2515	}
1364	}	2516	}
1365		2517
1366	($x, $y) = (-1, -1)	2518	($x, $y) = (-1, -1)
…		…
1369	# use -1 or undef as default coordinates, not 0, 0	2521	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	2522	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	2523	if $x <=0 && $y <= 0;
1372		2524
1373	$map->load;	2525	$map->load;
		2526	$map->load_neighbours;
1374		2527
		2528	return unless $self->contr->active;
1375	$self->activate_recursive;	2529	$self->activate_recursive;
		2530
		2531	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1376	$self->enter_map ($map, $x, $y);	2532	$self->enter_map ($map, $x, $y);
1377	}	2533	}
1378		2534
1379	=item $player_object->goto_map ($map, $x, $y)	2535	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1380		2536
1381	=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.
1382		2542
		2543	=cut
		2544
		2545	our $GOTOGEN;
		2546
1383	sub cf::object::player::goto_map {	2547	sub cf::object::player::goto {
1384	my ($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;
1385		2552
1386	$self->enter_link;	2553	$self->enter_link;
1387		2554
1388	(Coro::async {	2555	(async {
1389	$path = new cf::path $path;	2556	$Coro::current->{desc} = "player::goto $path $x $y";
1390		2557
1391	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) {
1392	$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	}
1393		2586
1394	warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	2587	$map
		2588	};
1396		2589
		2590	if ($@) {
		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};
1397	$self->leave_link ($map, $x, $y);	2597	$self->leave_link ($map, $x, $y);
		2598	}
		2599
		2600	$done->() if $done;
1398	})->prio (1);	2601	})->prio (1);
1399	}	2602	}
1400		2603
1401	=item $player_object->enter_exit ($exit_object)	2604	=item $player_object->enter_exit ($exit_object)
1402		2605
…		…
1404		2607
1405	sub parse_random_map_params {	2608	sub parse_random_map_params {
1406	my ($spec) = @_;	2609	my ($spec) = @_;
1407		2610
1408	my $rmp = { # defaults	2611	my $rmp = { # defaults
1409	xsize => 10,	2612	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	2613	ysize => (cf::rndm 15, 40),
		2614	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2615	#layout => string,
1411	};	2616	};
1412		2617
1413	for (split /\n/, $spec) {	2618	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	2619	my ($k, $v) = split /\s+/, $_, 2;
1415		2620
…		…
1419	$rmp	2624	$rmp
1420	}	2625	}
1421		2626
1422	sub prepare_random_map {	2627	sub prepare_random_map {
1423	my ($exit) = @_;	2628	my ($exit) = @_;
		2629
		2630	my $guard = cf::lock_acquire "exit_prepare:$exit";
1424		2631
1425	# all this does is basically replace the /! path by	2632	# all this does is basically replace the /! path by
1426	# a new random map path (?random/...) with a seed	2633	# a new random map path (?random/...) with a seed
1427	# that depends on the exit object	2634	# that depends on the exit object
1428		2635
1429	my $rmp = parse_random_map_params $exit->msg;	2636	my $rmp = parse_random_map_params $exit->msg;
1430		2637
1431	if ($exit->map) {	2638	if ($exit->map) {
1432	$rmp->{region} = $exit->map->region_name;	2639	$rmp->{region} = $exit->region->name;
1433	$rmp->{origin_map} = $exit->map->path;	2640	$rmp->{origin_map} = $exit->map->path;
1434	$rmp->{origin_x} = $exit->x;	2641	$rmp->{origin_x} = $exit->x;
1435	$rmp->{origin_y} = $exit->y;	2642	$rmp->{origin_y} = $exit->y;
1436	}	2643	}
1437		2644
1438	$rmp->{random_seed} ||= $exit->random_seed;	2645	$rmp->{random_seed} ||= $exit->random_seed;
1439		2646
1440	my $data = cf::to_json $rmp;	2647	my $data = cf::encode_json $rmp;
1441	my $md5 = Digest::MD5::md5_hex $data;	2648	my $md5 = Digest::MD5::md5_hex $data;
		2649	my $meta = "$RANDOMDIR/$md5.meta";
1442		2650
1443	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) {
1444	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;
1445		2655
1446	$exit->slaying ("?random/$md5");	2656	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	2657	$exit->msg (undef);
1448	}	2658	}
1449	}	2659	}
…		…
1451	sub cf::object::player::enter_exit {	2661	sub cf::object::player::enter_exit {
1452	my ($self, $exit) = @_;	2662	my ($self, $exit) = @_;
1453		2663
1454	return unless $self->type == cf::PLAYER;	2664	return unless $self->type == cf::PLAYER;
1455		2665
		2666	if ($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
1456	$self->enter_link;	2677	$self->enter_link;
1457		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
1458	(Coro::async {	2683	(async {
		2684	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2685
		2686	$self->deactivate_recursive; # just to be sure
1459	unless (eval {	2687	unless (eval {
1460		2688	$self->goto ($slaying, $hp, $sp);
1461	prepare_random_map $exit
1462	if $exit->slaying eq "/!";
1463
1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1466		2689
1467	1;	2690	1;
1468	}) {	2691	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	2692	$self->message ("Something went wrong deep within the crossfire server. "
1470	. "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. "
1471	. "Please report this to the dungeon master",	2694	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	2695	cf::NDI_UNIQUE | cf::NDI_RED);
1473		2696
1474	warn "ERROR in enter_exit: $@";	2697	warn "ERROR in enter_exit: $@";
1475	$self->leave_link;	2698	$self->leave_link;
1476	}	2699	}
1477	})->prio (1);	2700	})->prio (1);
…		…
1490		2713
1491	sub cf::client::send_drawinfo {	2714	sub cf::client::send_drawinfo {
1492	my ($self, $text, $flags) = @_;	2715	my ($self, $text, $flags) = @_;
1493		2716
1494	utf8::encode $text;	2717	utf8::encode $text;
1495	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2718	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1496	}	2719	}
1497		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	}
1498		2879
1499	=item $success = $client->query ($flags, "text", \&cb)	2880	=item $success = $client->query ($flags, "text", \&cb)
1500		2881
1501	Queues a query to the client, calling the given callback with	2882	Queues a query to the client, calling the given callback with
1502	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>,
1503	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>.
1504		2885
1505	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
1506	reliable at some point in the future.	2887	become reliable at some point in the future.
1507		2888
1508	=cut	2889	=cut
1509		2890
1510	sub cf::client::query {	2891	sub cf::client::query {
1511	my ($self, $flags, $text, $cb) = @_;	2892	my ($self, $flags, $text, $cb) = @_;
…		…
1519	utf8::encode $text;	2900	utf8::encode $text;
1520	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2901	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1521		2902
1522	$self->send_packet ($self->{query_queue}[0][0])	2903	$self->send_packet ($self->{query_queue}[0][0])
1523	if @{ $self->{query_queue} } == 1;	2904	if @{ $self->{query_queue} } == 1;
		2905
		2906	1
1524	}	2907	}
1525		2908
1526	cf::client->attach (	2909	cf::client->attach (
		2910	on_connect => sub {
		2911	my ($ns) = @_;
		2912
		2913	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2914	},
1527	on_reply => sub {	2915	on_reply => sub {
1528	my ($ns, $msg) = @_;	2916	my ($ns, $msg) = @_;
1529		2917
1530	# this weird shuffling is so that direct followup queries	2918	# this weird shuffling is so that direct followup queries
1531	# get handled first	2919	# get handled first
1532	my $queue = delete $ns->{query_queue};	2920	my $queue = delete $ns->{query_queue}
		2921	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		2922
1534	(shift @$queue)->[1]->($msg);	2923	(shift @$queue)->[1]->($msg);
		2924	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1535		2925
1536	push @{ $ns->{query_queue} }, @$queue;	2926	push @{ $ns->{query_queue} }, @$queue;
1537		2927
1538	if (@{ $ns->{query_queue} } == @$queue) {	2928	if (@{ $ns->{query_queue} } == @$queue) {
1539	if (@$queue) {	2929	if (@$queue) {
…		…
1541	} else {	2931	} else {
1542	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2932	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1543	}	2933	}
1544	}	2934	}
1545	},	2935	},
		2936	on_exticmd => sub {
		2937	my ($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	},
1546	);	2962	);
1547		2963
1548	=item $client->coro (\&cb)	2964	=item $client->async (\&cb)
1549		2965
1550	Create a new coroutine, running the specified callback. The coroutine will	2966	Create a new coroutine, running the specified callback. The coroutine will
1551	be automatically cancelled when the client gets destroyed (e.g. on logout,	2967	be automatically cancelled when the client gets destroyed (e.g. on logout,
1552	or loss of connection).	2968	or loss of connection).
1553		2969
1554	=cut	2970	=cut
1555		2971
1556	sub cf::client::coro {	2972	sub cf::client::async {
1557	my ($self, $cb) = @_;	2973	my ($self, $cb) = @_;
1558		2974
1559	my $coro; $coro = async {	2975	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		2976
1566	$coro->on_destroy (sub {	2977	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	2978	delete $self->{_coro}{$coro+0};
1568	});	2979	});
1569		2980
…		…
1596	our $safe = new Safe "safe";	3007	our $safe = new Safe "safe";
1597	our $safe_hole = new Safe::Hole;	3008	our $safe_hole = new Safe::Hole;
1598		3009
1599	$SIG{FPE} = 'IGNORE';	3010	$SIG{FPE} = 'IGNORE';
1600		3011
1601	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3012	$safe->permit_only (Opcode::opset qw(
		3013	:base_core :base_mem :base_orig :base_math
		3014	grepstart grepwhile mapstart mapwhile
		3015	sort time
		3016	));
1602		3017
1603	# here we export the classes and methods available to script code	3018	# here we export the classes and methods available to script code
1604		3019
1605	=pod	3020	=pod
1606		3021
1607	The following fucntions and emthods are available within a safe environment:	3022	The following functions and methods are available within a safe environment:
1608		3023
1609	cf::object contr pay_amount pay_player map	3024	cf::object
		3025	contr pay_amount pay_player map x y force_find force_add destroy
		3026	insert remove name archname title slaying race decrease_ob_nr
		3027
1610	cf::object::player player	3028	cf::object::player
1611	cf::player peaceful	3029	player
1612	cf::map trigger	3030
		3031	cf::player
		3032	peaceful
		3033
		3034	cf::map
		3035	trigger
1613		3036
1614	=cut	3037	=cut
1615		3038
1616	for (	3039	for (
1617	["cf::object" => qw(contr pay_amount pay_player map)],	3040	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3041	insert remove inv name archname title slaying race
		3042	decrease_ob_nr destroy)],
1618	["cf::object::player" => qw(player)],	3043	["cf::object::player" => qw(player)],
1619	["cf::player" => qw(peaceful)],	3044	["cf::player" => qw(peaceful)],
1620	["cf::map" => qw(trigger)],	3045	["cf::map" => qw(trigger)],
1621	) {	3046	) {
1622	no strict 'refs';	3047	no strict 'refs';
…		…
1693	=back	3118	=back
1694		3119
1695	=cut	3120	=cut
1696		3121
1697	#############################################################################	3122	#############################################################################
		3123	# the server's init and main functions
1698		3124
1699	=head2 EXTENSION DATABASE SUPPORT	3125	sub load_facedata($) {
		3126	my ($path) = @_;
1700		3127
1701	Crossfire maintains a very simple database for extension use. It can	3128	# HACK to clear player env face cache, we need some signal framework
1702	currently store anything that can be serialised using Storable, which	3129	# for this (global event?)
1703	excludes objects.	3130	%ext::player_env::MUSIC_FACE_CACHE = ();
1704		3131
1705	The parameter C<$family> should best start with the name of the extension	3132	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1706	using it, it should be unique.
1707		3133
1708	=over 4	3134	warn "loading facedata from $path\n";
1709		3135
1710	=item $hashref = cf::db_get $family	3136	my $facedata;
		3137	0 < aio_load $path, $facedata
		3138	or die "$path: $!";
1711		3139
1712	Return a hashref for use by the extension C<$family>, which can be	3140	$facedata = Coro::Storable::thaw $facedata;
1713	modified. After modifications, you have to call C<cf::db_dirty> or
1714	C<cf::db_sync>.
1715		3141
1716	=item $value = cf::db_get $family => $key	3142	$facedata->{version} == 2
		3143	or cf::cleanup "$path: version mismatch, cannot proceed.";
1717		3144
1718	Returns a single value from the database	3145	# patch in the exptable
1719		3146	$facedata->{resource}{"res/exp_table"} = {
1720	=item cf::db_put $family => $hashref	3147	type => FT_RSRC,
1721		3148	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1722	Stores the given family hashref into the database. Updates are delayed, if
1723	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1724
1725	=item cf::db_put $family => $key => $value
1726
1727	Stores the given C<$value> in the family hash. Updates are delayed, if you
1728	want the data to be synced to disk immediately, use C<cf::db_sync>.
1729
1730	=item cf::db_dirty
1731
1732	Marks the database as dirty, to be updated at a later time.
1733
1734	=item cf::db_sync
1735
1736	Immediately write the database to disk I<if it is dirty>.
1737
1738	=cut
1739
1740	our $DB;
1741
1742	{
1743	my $path = cf::localdir . "/database.pst";
1744
1745	sub db_load() {
1746	warn "loading database $path\n";#d# remove later
1747	$DB = stat $path ? Storable::retrieve $path : { };
1748	}
1749
1750	my $pid;
1751
1752	sub db_save() {
1753	warn "saving database $path\n";#d# remove later
1754	waitpid $pid, 0 if $pid;
1755	if (0 == ($pid = fork)) {
1756	$DB->{_meta}{version} = 1;
1757	Storable::nstore $DB, "$path~";
1758	rename "$path~", $path;
1759	cf::_exit 0 if defined $pid;
1760	}
1761	}
1762
1763	my $dirty;
1764
1765	sub db_sync() {
1766	db_save if $dirty;
1767	undef $dirty;
1768	}
1769
1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1771	db_sync;
1772	});	3149	};
		3150	cf::cede_to_tick;
1773		3151
1774	sub db_dirty() {
1775	$dirty = 1;
1776	$idle->start;
1777	}	3152	{
		3153	my $faces = $facedata->{faceinfo};
1778		3154
1779	sub db_get($;$) {	3155	while (my ($face, $info) = each %$faces) {
1780	@_ >= 2	3156	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1781	? $DB->{$_[0]}{$_[1]}
1782	: ($DB->{$_[0]} ||= { })
1783	}
1784		3157
1785	sub db_put($$;$) {	3158	cf::face::set_visibility $idx, $info->{visibility};
1786	if (@_ >= 3) {	3159	cf::face::set_magicmap $idx, $info->{magicmap};
1787	$DB->{$_[0]}{$_[1]} = $_[2];	3160	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1788	} else {	3161	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1789	$DB->{$_[0]} = $_[1];
1790	}
1791	db_dirty;
1792	}
1793		3162
1794	cf::global->attach (	3163	cf::cede_to_tick;
1795	prio => 10000,
1796	on_cleanup => sub {
1797	db_sync;
1798	},	3164	}
1799	);
1800	}
1801		3165
1802	#############################################################################	3166	while (my ($face, $info) = each %$faces) {
1803	# the server's main()	3167	next unless $info->{smooth};
1804		3168
1805	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 {
1806	open my $fh, "<:utf8", cf::confdir . "/config"	3311	open my $fh, "<:utf8", "$CONFDIR/config"
1807	or return;	3312	or return;
1808		3313
1809	local $/;	3314	local $/;
1810	*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	}
1811	}	3329	}
1812		3330
1813	sub main {	3331	sub main {
1814	# we must not ever block the main coroutine	3332	# we must not ever block the main coroutine
1815	local $Coro::idle = sub {	3333	local $Coro::idle = sub {
1816	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#
1817	(Coro::unblock_sub {	3335	(async {
1818	Event::one_event;	3336	$Coro::current->{desc} = "IDLE BUG HANDLER";
1819	})->();	3337	EV::loop EV::LOOP_ONESHOT;
		3338	})->prio (Coro::PRIO_MAX);
1820	};	3339	};
1821		3340
1822	cfg_load;	3341	reload_config;
1823	db_load;	3342	db_init;
1824	load_extensions;	3343	load_extensions;
		3344
		3345	$TICK_WATCHER->start;
		3346	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
1825	Event::loop;	3347	EV::loop;
1826	}	3348	}
1827		3349
1828	#############################################################################	3350	#############################################################################
1829	# initialisation	3351	# initialisation and cleanup
1830		3352
1831	sub perl_reload() {	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
		3442	sub do_reload_perl() {
1832	# can/must only be called in main	3443	# can/must only be called in main
1833	if ($Coro::current != $Coro::main) {	3444	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	3445	warn "can only reload from main coroutine";
1835	return;	3446	return;
1836	}	3447	}
1837		3448
1838	warn "reloading...";	3449	warn "reloading...";
1839		3450
1840	local $FREEZE = 1;	3451	warn "entering sync_job";
		3452
		3453	cf::sync_job {
		3454	cf::write_runtime; # external watchdog should not bark
1841	cf::emergency_save;	3455	cf::emergency_save;
		3456	cf::write_runtime; # external watchdog should not bark
1842		3457
1843	eval {	3458	warn "syncing database to disk";
		3459	BDB::db_env_txn_checkpoint $DB_ENV;
		3460
1844	# 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
1845		3462
1846	# cancel all watchers	3463	warn "flushing outstanding aio requests";
1847	for (Event::all_watchers) {	3464	for (;;) {
1848	$_->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...";
1849	}	3470	}
1850		3471
		3472	++$RELOAD;
		3473
1851	# cancel all extension coros	3474	warn "cancelling all extension coros";
1852	$_->cancel for values %EXT_CORO;	3475	$_->cancel for values %EXT_CORO;
1853	%EXT_CORO = ();	3476	%EXT_CORO = ();
1854		3477
1855	# unload all extensions	3478	warn "removing commands";
1856	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) {
1857	warn "unloading <$_>";	3487	warn "... unloading $pkg";
1858	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: $@";
1859	}	3494	}
1860		3495
		3496	warn "... nuking $pkg";
		3497	Symbol::delete_package $pkg;
		3498	}
		3499
1861	# unload all modules loaded from $LIBDIR	3500	warn "unloading all perl modules loaded from $LIBDIR";
1862	while (my ($k, $v) = each %INC) {	3501	while (my ($k, $v) = each %INC) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3502	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1864		3503
1865	warn "removing <$k>";	3504	warn "... unloading $k";
1866	delete $INC{$k};	3505	delete $INC{$k};
1867		3506
1868	$k =~ s/\.pm$//;	3507	$k =~ s/\.pm$//;
1869	$k =~ s/\//::/g;	3508	$k =~ s/\//::/g;
1870		3509
…		…
1873	}	3512	}
1874		3513
1875	Symbol::delete_package $k;	3514	Symbol::delete_package $k;
1876	}	3515	}
1877		3516
1878	# sync database to disk
1879	cf::db_sync;
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible	3517	warn "getting rid of safe::, as good as possible";
1883	Symbol::delete_package "safe::$_"	3518	Symbol::delete_package "safe::$_"
1884	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);
1885		3520
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"	3521	warn "unloading cf.pm \"a bit\"";
1890	delete $INC{"cf.pm"};	3522	delete $INC{"cf.pm"};
		3523	delete $INC{"cf/pod.pm"};
1891		3524
1892	# don't, removes xs symbols, too,	3525	# don't, removes xs symbols, too,
1893	# and global variables created in xs	3526	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;	3527	#Symbol::delete_package __PACKAGE__;
1895		3528
1896	# reload cf.pm	3529	warn "unload completed, starting to reload now";
		3530
1897	warn "reloading cf.pm";	3531	warn "reloading cf.pm";
1898	require cf;	3532	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3533	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900		3534
1901	# load config and database again	3535	warn "loading config and database again";
1902	cf::cfg_load;	3536	cf::reload_config;
1903	cf::db_load;
1904		3537
1905	# load extensions
1906	warn "load extensions";	3538	warn "loading extensions";
1907	cf::load_extensions;	3539	cf::load_extensions;
1908		3540
1909	# reattach attachments to objects	3541	warn "reattaching attachments to objects/players";
1910	warn "reattach";	3542	_global_reattach; # objects, sockets
1911	_global_reattach;	3543	warn "reattaching attachments to maps";
1912	};	3544	reattach $_ for values %MAP;
		3545	warn "reattaching attachments to players";
		3546	reattach $_ for values %PLAYER;
1913		3547
1914	if ($@) {	3548	warn "leaving sync_job";
		3549
		3550	1
		3551	} or do {
1915	warn $@;	3552	warn $@;
1916	warn "error while reloading, exiting.";	3553	warn "error while reloading, exiting.";
1917	exit 1;	3554	exit 1;
1918	}	3555	};
1919		3556
1920	warn "reloaded successfully";	3557	warn "reloaded";
1921	};	3558	};
1922		3559
1923	#############################################################################	3560	our $RELOAD_WATCHER; # used only during reload
1924		3561
1925	unless ($LINK_MAP) {	3562	sub reload_perl() {
1926	$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.
1927		3565
1928	$LINK_MAP->width (41);	3566	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
1929	$LINK_MAP->height (41);	3567	undef $RELOAD_WATCHER;
1930	$LINK_MAP->alloc;	3568	do_reload_perl;
1931	$LINK_MAP->path ("{link}");	3569	};
1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1934
1935	# dirty hack because... archetypes are not yet loaded
1936	Event->timer (
1937	after => 2,
1938	cb => sub {
1939	$_[0]->w->cancel;
1940
1941	# provide some exits "home"
1942	my $exit = cf::object::new "exit";
1943
1944	$exit->slaying ($EMERGENCY_POSITION->[0]);
1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1947
1948	$LINK_MAP->insert ($exit->clone, 19, 19);
1949	$LINK_MAP->insert ($exit->clone, 19, 20);
1950	$LINK_MAP->insert ($exit->clone, 19, 21);
1951	$LINK_MAP->insert ($exit->clone, 20, 19);
1952	$LINK_MAP->insert ($exit->clone, 20, 21);
1953	$LINK_MAP->insert ($exit->clone, 21, 19);
1954	$LINK_MAP->insert ($exit->clone, 21, 20);
1955	$LINK_MAP->insert ($exit->clone, 21, 21);
1956
1957	$exit->destroy;
1958	});
1959
1960	$LINK_MAP->{deny_save} = 1;
1961	$LINK_MAP->{deny_reset} = 1;
1962
1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1964	}	3570	}
1965		3571
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {	3572	register_command "reload" => sub {
1969	my ($who, $arg) = @_;	3573	my ($who, $arg) = @_;
1970		3574
1971	if ($who->flag (FLAG_WIZ)) {	3575	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end of reload.");	3576	$who->message ("reloading server.");
		3577	async {
		3578	$Coro::current->{desc} = "perl_reload";
		3579	reload_perl;
		3580	};
1975	}	3581	}
1976	};	3582	};
1977		3583
1978	unshift @INC, $LIBDIR;	3584	unshift @INC, $LIBDIR;
1979		3585
1980	$TICK_WATCHER = Event->timer (	3586	my $bug_warning = 0;
1981	reentrant => 0,	3587
1982	prio => 0,	3588	our @WAIT_FOR_TICK;
1983	at => $NEXT_TICK || $TICK,	3589	our @WAIT_FOR_TICK_BEGIN;
1984	data => WF_AUTOCANCEL,	3590
1985	cb => sub {	3591	sub wait_for_tick {
1986	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
1987	cf::server_tick; # one server iteration	3618	cf::server_tick; # one server iteration
		3619
1988	$RUNTIME += $TICK;	3620	$RUNTIME += $TICK;
1989	}	3621	$NEXT_TICK = $_[0]->at;
1990		3622
1991	$NEXT_TICK += $TICK;	3623	if ($NOW >= $NEXT_RUNTIME_WRITE) {
1992		3624	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
1993	# if we are delayed by four ticks or more, skip them all	3625	Coro::async_pool {
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3626	$Coro::current->{desc} = "runtime saver";
1995
1996	$TICK_WATCHER->at ($NEXT_TICK);
1997	$TICK_WATCHER->start;
1998	},
1999	);
2000
2001	IO::AIO::max_poll_time $TICK * 0.2;
2002
2003	Event->io (
2004	fd => IO::AIO::poll_fileno,
2005	poll => 'r',
2006	prio => 5,
2007	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,
2009	);
2010
2011	Event->timer (
2012	data => WF_AUTOCANCEL,
2013	after => 0,
2014	interval => 10,
2015	cb => sub {
2016	(Coro::unblock_sub {
2017	write_runtime	3627	write_runtime
2018	or warn "ERROR: unable to write runtime file: $!";	3628	or warn "ERROR: unable to write runtime file: $!";
2019	})->();	3629	};
2020	},	3630	}
2021	);	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 }
2022		3739
2023	1	3740	1
2024		3741

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