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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.116 by root, Mon Jan 1 17:30:34 2007 UTC vs.
Revision 1.403 by root, Mon Dec 17 07:09:18 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV;
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;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	32	use YAML::Syck ();
		33	use IO::AIO 2.51 ();
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?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
30		46
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		48
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		50
35	our %COMMAND = ();	51	our %COMMAND = ();
36	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
38		59
		60	our $RELOAD; # number of reloads so far
39	our @EVENT;	61	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		62
42	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	79	our $NEXT_TICK;
45	our $NOW;	80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $BDB_DEADLOCK_WATCHER;
		84	our $BDB_CHECKPOINT_WATCHER;
		85	our $BDB_TRICKLE_WATCHER;
		86	our $DB_ENV;
46		87
47	our %CFG;	88	our %CFG;
48		89
49	our $UPTIME; $UPTIME ||= time;	90	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	91	our $RUNTIME;
		92	our $NOW;
51		93
52	our %MAP; # all maps	94	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	95	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	96	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	97
56	our %EXT_CORO;	98	# used to convert map paths into valid unix filenames by replacing / by ∕
		99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
57		104
58	binmode STDOUT;	105	binmode STDOUT;
59	binmode STDERR;	106	binmode STDERR;
60		107
61	# read virtual server time, if available	108	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
66	}	113	}
67		114
68	mkdir cf::localdir;	115	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		117
74	# a special map that is always available	118	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		119
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	120	sub cf::map::normalise;
78		121
79	#############################################################################	122	#############################################################################
80		123
81	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
82		125
…		…
89	=item $cf::RUNTIME	132	=item $cf::RUNTIME
90		133
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	135	every server tick.
93		136
94	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		140
96	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
98		145
99	=item $cf::NOW	146	=item $cf::NOW
100		147
101	The time of the last (current) server tick.	148	The time of the last (current) server tick.
102		149
103	=item $cf::TICK	150	=item $cf::TICK
104		151
105	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
106		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
		163
107	=item %cf::CFG	164	=item %cf::CFG
108		165
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	167	from wherever your confdir points to.
		168
		169	=item cf::wait_for_tick, cf::wait_for_tick_begin
		170
		171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		172	returns directly I<after> the tick processing (and consequently, can only wake one process
		173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
111		180
112	=back	181	=back
113		182
114	=cut	183	=cut
115		184
116	BEGIN {	185	BEGIN {
117	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	187	my $msg = join "", @_;
119	utf8::encode $msg;
120		188
121	$msg .= "\n"	189	$msg .= "\n"
122	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
123		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		193
124	LOG llevError, "cfperl: $msg";	194	LOG llevError, $msg;
125	};	195	};
126	}	196	}
127		197
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		205
135	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	207	# within the Safe compartment.
137	for my $pkg (qw(	208	for my $pkg (qw(
138	cf::global cf::attachable	209	cf::global cf::attachable
…		…
143	)) {	214	)) {
144	no strict 'refs';	215	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	216	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	217	}
147		218
148	$Event::DIED = sub {	219	$EV::DIED = sub {
149	warn "error in event callback: @_";	220	warn "error in event callback: @_";
150	};	221	};
151		222
152	my %ext_pkg;	223	#############################################################################
153	my @exts;
154	my @hook;
155		224
156	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
157		226
158	=over 4	227	=over 4
159		228
160	=cut	229	=item dumpval $ref
161		230
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	231	=cut
163		232
		233	sub dumpval {
		234	eval {
		235	local $SIG{__DIE__};
		236	my $d;
		237	if (1) {
		238	$d = new Data::Dumper([$_[0]], ["*var"]);
		239	$d->Terse(1);
		240	$d->Indent(2);
		241	$d->Quotekeys(0);
		242	$d->Useqq(1);
		243	#$d->Bless(...);
		244	$d->Seen($_[1]) if @_ > 1;
		245	$d = $d->Dump();
		246	}
		247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		248	$d
		249	} || "[unable to dump $_[0]: '$@']";
		250	}
		251
164	=item $ref = cf::from_json $json	252	=item $ref = cf::decode_json $json
165		253
166	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
167		255
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	256	=item $json = cf::encode_json $ref
176		257
177	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
178		259
179	=cut	260	=cut
180		261
181	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
183	JSON::Syck::Dump $_[0]	264	sub encode_json($) { $json_coder->encode ($_[0]) }
		265	sub decode_json($) { $json_coder->decode ($_[0]) }
		266
		267	=item cf::lock_wait $string
		268
		269	Wait until the given lock is available. See cf::lock_acquire.
		270
		271	=item my $lock = cf::lock_acquire $string
		272
		273	Wait until the given lock is available and then acquires it and returns
		274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		275	for example when the coroutine gets canceled), the lock is automatically
		276	returned.
		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
		281	Lock names should begin with a unique identifier (for example, cf::map::find
		282	uses map_find and cf::map::load uses map_load).
		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
		288	=cut
		289
		290	our %LOCK;
		291	our %LOCKER;#d#
		292
		293	sub lock_wait($) {
		294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
		300
		301	# wait for lock, if any
		302	while ($LOCK{$key}) {
		303	push @{ $LOCK{$key} }, $Coro::current;
		304	Coro::schedule;
		305	}
184	}	306	}
		307
		308	sub lock_acquire($) {
		309	my ($key) = @_;
		310
		311	# wait, to be sure we are not locked
		312	lock_wait $key;
		313
		314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
		316
		317	Coro::guard {
		318	delete $LOCKER{$key};#d#
		319	# wake up all waiters, to be on the safe side
		320	$_->ready for @{ delete $LOCK{$key} };
		321	}
		322	}
		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
		330	sub freeze_mainloop {
		331	return unless $TICK_WATCHER->is_active;
		332
		333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
		336	$TICK_WATCHER->stop;
		337	$guard
		338	}
		339
		340	=item cf::periodic $interval, $cb
		341
		342	Like EV::periodic, but randomly selects a starting point so that the actions
		343	get spread over timer.
		344
		345	=cut
		346
		347	sub periodic($$) {
		348	my ($interval, $cb) = @_;
		349
		350	my $start = rand List::Util::min 180, $interval;
		351
		352	EV::periodic $start, $interval, 0, $cb
		353	}
		354
		355	=item cf::get_slot $time[, $priority[, $name]]
		356
		357	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		358	This call blocks and returns only when you have at least C<$time> seconds
		359	of cpu time till the next tick. The slot is only valid till the next cede.
		360
		361	The optional C<$name> can be used to identify the job to run. It might be
		362	used for statistical purposes and should identify the same time-class.
		363
		364	Useful for short background jobs.
		365
		366	=cut
		367
		368	our @SLOT_QUEUE;
		369	our $SLOT_QUEUE;
		370
		371	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		372	$SLOT_QUEUE = Coro::async {
		373	$Coro::current->desc ("timeslot manager");
		374
		375	my $signal = new Coro::Signal;
		376
		377	while () {
		378	next_job:
		379	my $avail = cf::till_tick;
		380	if ($avail > 0.01) {
		381	for (0 .. $#SLOT_QUEUE) {
		382	if ($SLOT_QUEUE[$_][0] < $avail) {
		383	my $job = splice @SLOT_QUEUE, $_, 1, ();
		384	$job->[2]->send;
		385	Coro::cede;
		386	goto next_job;
		387	}
		388	}
		389	}
		390
		391	if (@SLOT_QUEUE) {
		392	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		393	push @cf::WAIT_FOR_TICK, $signal;
		394	$signal->wait;
		395	} else {
		396	Coro::schedule;
		397	}
		398	}
		399	};
		400
		401	sub get_slot($;$$) {
		402	my ($time, $pri, $name) = @_;
		403
		404	$time = $TICK * .6 if $time > $TICK * .6;
		405	my $sig = new Coro::Signal;
		406
		407	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		408	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		409	$SLOT_QUEUE->ready;
		410	$sig->wait;
		411	}
		412
		413	=item cf::async { BLOCK }
		414
		415	Currently the same as Coro::async_pool, meaning you cannot use
		416	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		417	thing you are allowed to do is call C<prio> on it.
		418
		419	=cut
		420
		421	BEGIN { *async = \&Coro::async_pool }
185		422
186	=item cf::sync_job { BLOCK }	423	=item cf::sync_job { BLOCK }
187		424
188	The design of crossfire+ requires that the main coro ($Coro::main) is	425	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	426	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	427	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		428	acceptable.
191		429
192	If it must be done, put the blocking parts into C<sync_job>. This will run	430	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	431	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	432	server will be frozen during this time, so the block should either finish
195	fast or be very important.	433	fast or be very important.
…		…
198		436
199	sub sync_job(&) {	437	sub sync_job(&) {
200	my ($job) = @_;	438	my ($job) = @_;
201		439
202	if ($Coro::current == $Coro::main) {	440	if ($Coro::current == $Coro::main) {
		441	my $time = EV::time;
		442
203	# this is the main coro, too bad, we have to block	443	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	444	# till the operation succeeds, freezing the server :/
205		445
		446	LOG llevError, Carp::longmess "sync job";#d#
		447
206	# TODO: use suspend/resume instead	448	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	449	# (but this is cancel-safe)
208	local $FREEZE = 1;	450	my $freeze_guard = freeze_mainloop;
209		451
210	my $busy = 1;	452	my $busy = 1;
211	my @res;	453	my @res;
212		454
213	(Coro::async {	455	(async {
		456	$Coro::current->desc ("sync job coro");
214	@res = eval { $job->() };	457	@res = eval { $job->() };
215	warn $@ if $@;	458	warn $@ if $@;
216	undef $busy;	459	undef $busy;
217	})->prio (Coro::PRIO_MAX);	460	})->prio (Coro::PRIO_MAX);
218		461
219	while ($busy) {	462	while ($busy) {
		463	if (Coro::nready) {
220	Coro::cede_notself;	464	Coro::cede_notself;
221	Event::one_event unless Coro::nready;	465	} else {
		466	EV::loop EV::LOOP_ONESHOT;
222	}	467	}
		468	}
		469
		470	$time = EV::time - $time;
		471
		472	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		473	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		474
		475	$tick_start += $time; # do not account sync jobs to server load
223		476
224	wantarray ? @res : $res[0]	477	wantarray ? @res : $res[0]
225	} else {	478	} else {
226	# we are in another coroutine, how wonderful, everything just works	479	# we are in another coroutine, how wonderful, everything just works
227		480
228	$job->()	481	$job->()
229	}	482	}
230	}	483	}
231		484
232	=item $coro = cf::coro { BLOCK }	485	=item $coro = cf::async_ext { BLOCK }
233		486
234	Creates and returns a new coro. This coro is automcatially being canceled	487	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	488	extension calling this is being unloaded.
236		489
237	=cut	490	=cut
238		491
239	sub coro(&) {	492	sub async_ext(&) {
240	my $cb = shift;	493	my $cb = shift;
241		494
242	my $coro; $coro = async {	495	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		496
249	$coro->on_destroy (sub {	497	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	498	delete $EXT_CORO{$coro+0};
251	});	499	});
252	$EXT_CORO{$coro+0} = $coro;	500	$EXT_CORO{$coro+0} = $coro;
253		501
254	$coro	502	$coro
255	}	503	}
256		504
257	sub write_runtime {	505	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		506
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	507	Executes the given code block with the given arguments in a seperate
261	or return;	508	process, returning the results. Everything must be serialisable with
		509	Coro::Storable. May, of course, block. Note that the executed sub may
		510	never block itself or use any form of event handling.
262		511
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	512	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		513
267	aio_fsync $fh	514	sub fork_call(&@) {
268	and return;	515	my ($cb, @args) = @_;
269		516
270	close $fh	517	# we seemingly have to make a local copy of the whole thing,
271	or return;	518	# otherwise perl prematurely frees the stuff :/
		519	# TODO: investigate and fix (likely this will be rather laborious)
272		520
273	aio_rename "$runtime~", $runtime	521	my @res = Coro::Util::fork_eval {
274	and return;	522	reset_signals;
		523	&$cb
		524	}, @args;
275		525
		526	wantarray ? @res : $res[-1]
		527	}
		528
		529	=item $value = cf::db_get $family => $key
		530
		531	Returns a single value from the environment database.
		532
		533	=item cf::db_put $family => $key => $value
		534
		535	Stores the given C<$value> in the family. It can currently store binary
		536	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		537
		538	=item $db = cf::db_table "name"
		539
		540	Create and/or open a new database table. The string must not be "db" and must be unique
		541	within each server.
		542
		543	=cut
		544
		545	sub db_table($) {
		546	my ($name) = @_;
		547	my $db = BDB::db_create $DB_ENV;
		548
		549	eval {
		550	$db->set_flags (BDB::CHKSUM);
		551
		552	utf8::encode $name;
		553	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		554	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		555	cf::cleanup "db_open(db): $!" if $!;
		556	};
		557	cf::cleanup "db_open(db): $@" if $@;
		558
		559	$db
		560	}
		561
		562	our $DB;
		563
		564	sub db_init {
		565	cf::sync_job {
		566	$DB ||= db_table "db";
		567	};
		568	}
		569
		570	sub db_get($$) {
		571	my $key = "$_[0]/$_[1]";
		572
		573	cf::sync_job {
		574	BDB::db_get $DB, undef, $key, my $data;
		575
		576	$! ? ()
		577	: $data
276	1	578	}
		579	}
		580
		581	sub db_put($$$) {
		582	BDB::dbreq_pri 4;
		583	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		584	}
		585
		586	=item cf::cache $id => [$paths...], $processversion => $process
		587
		588	Generic caching function that returns the value of the resource $id,
		589	caching and regenerating as required.
		590
		591	This function can block.
		592
		593	=cut
		594
		595	sub cache {
		596	my ($id, $src, $processversion, $process) = @_;
		597
		598	my $meta =
		599	join "\x00",
		600	$processversion,
		601	map {
		602	aio_stat $_
		603	and Carp::croak "$_: $!";
		604
		605	($_, (stat _)[7,9])
		606	} @$src;
		607
		608	my $dbmeta = db_get cache => "$id/meta";
		609	if ($dbmeta ne $meta) {
		610	# changed, we may need to process
		611
		612	my @data;
		613	my $md5;
		614
		615	for (0 .. $#$src) {
		616	0 <= aio_load $src->[$_], $data[$_]
		617	or Carp::croak "$src->[$_]: $!";
		618	}
		619
		620	# if processing is expensive, check
		621	# checksum first
		622	if (1) {
		623	$md5 =
		624	join "\x00",
		625	$processversion,
		626	map {
		627	cf::cede_to_tick;
		628	($src->[$_], Digest::MD5::md5_hex $data[$_])
		629	} 0.. $#$src;
		630
		631
		632	my $dbmd5 = db_get cache => "$id/md5";
		633	if ($dbmd5 eq $md5) {
		634	db_put cache => "$id/meta", $meta;
		635
		636	return db_get cache => "$id/data";
		637	}
		638	}
		639
		640	my $t1 = Time::HiRes::time;
		641	my $data = $process->(\@data);
		642	my $t2 = Time::HiRes::time;
		643
		644	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		645
		646	db_put cache => "$id/data", $data;
		647	db_put cache => "$id/md5" , $md5;
		648	db_put cache => "$id/meta", $meta;
		649
		650	return $data;
		651	}
		652
		653	db_get cache => "$id/data"
		654	}
		655
		656	=item cf::datalog type => key => value, ...
		657
		658	Log a datalog packet of the given type with the given key-value pairs.
		659
		660	=cut
		661
		662	sub datalog($@) {
		663	my ($type, %kv) = @_;
		664	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	665	}
278		666
279	=back	667	=back
280		668
281	=cut	669	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402		670
403	#############################################################################	671	#############################################################################
404		672
405	=head2 ATTACHABLE OBJECTS	673	=head2 ATTACHABLE OBJECTS
406		674
…		…
408	attach callbacks/event handlers (a collection of which is called an "attachment")	676	attach callbacks/event handlers (a collection of which is called an "attachment")
409	to it. All such attachable objects support the following methods.	677	to it. All such attachable objects support the following methods.
410		678
411	In the following description, CLASS can be any of C<global>, C<object>	679	In the following description, CLASS can be any of C<global>, C<object>
412	C<player>, C<client> or C<map> (i.e. the attachable objects in	680	C<player>, C<client> or C<map> (i.e. the attachable objects in
413	crossfire+).	681	Deliantra).
414		682
415	=over 4	683	=over 4
416		684
417	=item $attachable->attach ($attachment, key => $value...)	685	=item $attachable->attach ($attachment, key => $value...)
418		686
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	800	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	801	our @CB_MAP = ();
534		802
535	my %attachment;	803	my %attachment;
536		804
		805	sub cf::attachable::thawer_merge {
		806	# simply override everything except _meta
		807	local $_[0]{_meta};
		808	%{$_[0]} = %{$_[1]};
		809	}
		810
537	sub _attach_cb($$$$) {	811	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	812	my ($registry, $event, $prio, $cb) = @_;
539		813
540	use sort 'stable';	814	use sort 'stable';
541		815
…		…
575	$registry = $CB_TYPE[$object_type] ||= [];	849	$registry = $CB_TYPE[$object_type] ||= [];
576		850
577	} elsif ($type eq "subtype") {	851	} elsif ($type eq "subtype") {
578	defined $object_type or Carp::croak "subtype specified without type";	852	defined $object_type or Carp::croak "subtype specified without type";
579	my $object_subtype = shift @arg;	853	my $object_subtype = shift @arg;
580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	854	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
581		855
582	} elsif ($type eq "package") {	856	} elsif ($type eq "package") {
583	my $pkg = shift @arg;	857	my $pkg = shift @arg;
584		858
585	while (my ($name, $id) = each %cb_id) {	859	while (my ($name, $id) = each %cb_id) {
…		…
614	_attach $registry, $klass, @attach;	888	_attach $registry, $klass, @attach;
615	}	889	}
616		890
617	$obj->{$name} = \%arg;	891	$obj->{$name} = \%arg;
618	} else {	892	} else {
619	warn "object uses attachment '$name' that is not available, postponing.\n";	893	warn "object uses attachment '$name' which is not available, postponing.\n";
620	}	894	}
621		895
622	$obj->{_attachment}{$name} = undef;	896	$obj->{_attachment}{$name} = undef;
623	}	897	}
624		898
…		…
626	if (ref $_[0]) {	900	if (ref $_[0]) {
627	_object_attach @_;	901	_object_attach @_;
628	} else {	902	} else {
629	_attach shift->_attach_registry, @_;	903	_attach shift->_attach_registry, @_;
630	}	904	}
		905	_recalc_want;
631	};	906	};
632		907
633	# all those should be optimised	908	# all those should be optimised
634	sub cf::attachable::detach {	909	sub cf::attachable::detach {
635	my ($obj, $name) = @_;	910	my ($obj, $name) = @_;
…		…
638	delete $obj->{_attachment}{$name};	913	delete $obj->{_attachment}{$name};
639	reattach ($obj);	914	reattach ($obj);
640	} else {	915	} else {
641	Carp::croak "cannot, currently, detach class attachments";	916	Carp::croak "cannot, currently, detach class attachments";
642	}	917	}
		918	_recalc_want;
643	};	919	};
644		920
645	sub cf::attachable::attached {	921	sub cf::attachable::attached {
646	my ($obj, $name) = @_;	922	my ($obj, $name) = @_;
647		923
…		…
662	";	938	";
663	die if $@;	939	die if $@;
664	}	940	}
665		941
666	our $override;	942	our $override;
667	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	943	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
668		944
669	sub override {	945	sub override {
670	$override = 1;	946	$override = 1;
671	@invoke_results = ();	947	@INVOKE_RESULTS = (@_);
672	}	948	}
673		949
674	sub do_invoke {	950	sub do_invoke {
675	my $event = shift;	951	my $event = shift;
676	my $callbacks = shift;	952	my $callbacks = shift;
677		953
678	@invoke_results = ();	954	@INVOKE_RESULTS = ();
679		955
680	local $override;	956	local $override;
681		957
682	for (@$callbacks) {	958	for (@$callbacks) {
683	eval { &{$_->[1]} };	959	eval { &{$_->[1]} };
…		…
700		976
701	Generate an object-specific event with the given arguments.	977	Generate an object-specific event with the given arguments.
702		978
703	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	979	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
704	removed in future versions), and there is no public API to access override	980	removed in future versions), and there is no public API to access override
705	results (if you must, access C<@cf::invoke_results> directly).	981	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
706		982
707	=back	983	=back
708		984
709	=cut	985	=cut
710		986
711	#############################################################################	987	#############################################################################
712	# object support	988	# object support
		989
		990	sub _object_equal($$);
		991	sub _object_equal($$) {
		992	my ($a, $b) = @_;
		993
		994	return 0 unless (ref $a) eq (ref $b);
		995
		996	if ("HASH" eq ref $a) {
		997	my @ka = keys %$a;
		998	my @kb = keys %$b;
		999
		1000	return 0 if @ka != @kb;
		1001
		1002	for (0 .. $#ka) {
		1003	return 0 unless $ka[$_] eq $kb[$_];
		1004	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1005	}
		1006
		1007	} elsif ("ARRAY" eq ref $a) {
		1008
		1009	return 0 if @$a != @$b;
		1010
		1011	for (0 .. $#$a) {
		1012	return 0 unless _object_equal $a->[$_], $b->[$_];
		1013	}
		1014
		1015	} elsif ($a ne $b) {
		1016	return 0;
		1017	}
		1018
		1019	1
		1020	}
		1021
		1022	our $SLOW_MERGES;#d#
		1023	sub _can_merge {
		1024	my ($ob1, $ob2) = @_;
		1025
		1026	++$SLOW_MERGES;#d#
		1027
		1028	# we do the slow way here
		1029	return _object_equal $ob1, $ob2
		1030	}
713		1031
714	sub reattach {	1032	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	1033	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	1034	my ($obj) = @_;
		1035
		1036	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		1037
718	my $registry = $obj->registry;	1038	my $registry = $obj->registry;
719		1039
720	@$registry = ();	1040	@$registry = ();
721		1041
…		…
736	cf::attachable->attach (	1056	cf::attachable->attach (
737	prio => -1000000,	1057	prio => -1000000,
738	on_instantiate => sub {	1058	on_instantiate => sub {
739	my ($obj, $data) = @_;	1059	my ($obj, $data) = @_;
740		1060
741	$data = from_json $data;	1061	$data = decode_json $data;
742		1062
743	for (@$data) {	1063	for (@$data) {
744	my ($name, $args) = @$_;	1064	my ($name, $args) = @$_;
745		1065
746	$obj->attach ($name, %{$args || {} });	1066	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1082	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1083	my ($filename, $rdata, $objs) = @_;
764		1084
765	sync_job {	1085	sync_job {
766	if (length $$rdata) {	1086	if (length $$rdata) {
		1087	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1088	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1089	$decname, length $$rdata, scalar @$objs;
769		1090
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1091	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1092	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1093	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	1094	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	1095	close $fh;
775		1096
776	if (@$objs) {	1097	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1098	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1099	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1100	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1101	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	1102	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	1103	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1104	aio_rename "$filename.pst~", "$filename.pst";
784	}	1105	}
785	} else {	1106	} else {
786	aio_unlink "$filename.pst";	1107	aio_unlink "$filename.pst";
…		…
792	}	1113	}
793	} else {	1114	} else {
794	aio_unlink $filename;	1115	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1116	aio_unlink "$filename.pst";
796	}	1117	}
797	}	1118	};
798	}	1119	}
799		1120
800	sub object_freezer_as_string {	1121	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1122	my ($rdata, $objs) = @_;
802		1123
…		…
814	or return;	1135	or return;
815		1136
816	unless (aio_stat "$filename.pst") {	1137	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1138	(aio_load "$filename.pst", $av) >= 0
818	or return;	1139	or return;
		1140
819	$av = eval { (Storable::thaw $av)->{objs} };	1141	my $st = eval { Coro::Storable::thaw $av };
		1142	$av = $st->{objs};
820	}	1143	}
821		1144
		1145	utf8::decode (my $decname = $filename);
		1146	warn sprintf "loading %s (%d,%d)\n",
		1147	$decname, length $data, scalar @{$av || []};
		1148
822	return ($data, $av);	1149	($data, $av)
823	}	1150	}
		1151
		1152	=head2 COMMAND CALLBACKS
		1153
		1154	=over 4
		1155
		1156	=cut
824		1157
825	#############################################################################	1158	#############################################################################
826	# command handling &c	1159	# command handling &c
827		1160
828	=item cf::register_command $name => \&callback($ob,$args);	1161	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1174	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1175	}
843		1176
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1177	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1178
846	Register a callbackf ro execution when the client sends an extcmd packet.	1179	Register a callback for execution when the client sends an (synchronous)
		1180	extcmd packet. Ext commands will be processed in the order they are
		1181	received by the server, like other user commands. The first argument is
		1182	the logged-in player. Ext commands can only be processed after a player
		1183	has logged in successfully.
847		1184
848	If the callback returns something, it is sent back as if reply was being	1185	If the callback returns something, it is sent back as if reply was being
849	called.	1186	called.
850		1187
		1188	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1189
		1190	Register a callback for execution when the client sends an (asynchronous)
		1191	exticmd packet. Exti commands are processed by the server as soon as they
		1192	are received, i.e. out of order w.r.t. other commands. The first argument
		1193	is a client socket. Exti commands can be received anytime, even before
		1194	log-in.
		1195
		1196	If the callback returns something, it is sent back as if reply was being
		1197	called.
		1198
851	=cut	1199	=cut
852		1200
853	sub register_extcmd {	1201	sub register_extcmd {
854	my ($name, $cb) = @_;	1202	my ($name, $cb) = @_;
855		1203
856	my $caller = caller;
857	#warn "registering extcmd '$name' to '$caller'";
858
859	$EXTCMD{$name} = [$cb, $caller];	1204	$EXTCMD{$name} = $cb;
		1205	}
		1206
		1207	sub register_exticmd {
		1208	my ($name, $cb) = @_;
		1209
		1210	$EXTICMD{$name} = $cb;
860	}	1211	}
861		1212
862	cf::player->attach (	1213	cf::player->attach (
863	on_command => sub {	1214	on_command => sub {
864	my ($pl, $name, $params) = @_;	1215	my ($pl, $name, $params) = @_;
…		…
873	cf::override;	1224	cf::override;
874	},	1225	},
875	on_extcmd => sub {	1226	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1227	my ($pl, $buf) = @_;
877		1228
878	my $msg = eval { from_json $buf };	1229	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1230
880	if (ref $msg) {	1231	if (ref $msg) {
		1232	my ($type, $reply, @payload) =
		1233	"ARRAY" eq ref $msg
		1234	? @$msg
		1235	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1236
		1237	my @reply;
		1238
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1239	if (my $cb = $EXTCMD{$type}) {
882	if (my %reply = $cb->[0]->($pl, $msg)) {	1240	@reply = $cb->($pl, @payload);
883	$pl->ext_reply ($msg->{msgid}, %reply);
884	}
885	}	1241	}
		1242
		1243	$pl->ext_reply ($reply, @reply)
		1244	if $reply;
		1245
886	} else {	1246	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1247	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1248	}
889		1249
890	cf::override;	1250	cf::override;
891	},	1251	},
892	);	1252	);
893		1253
894	sub register {
895	my ($base, $pkg) = @_;
896
897	#TODO
898	}
899
900	sub load_extension {	1254	sub load_extensions {
		1255	cf::sync_job {
		1256	my %todo;
		1257
		1258	for my $path (<$LIBDIR/*.ext>) {
		1259	next unless -r $path;
		1260
		1261	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1262	my $base = $1;
		1263	my $pkg = $1;
		1264	$pkg =~ s/[^[:word:]]/_/g;
		1265	$pkg = "ext::$pkg";
		1266
		1267	open my $fh, "<:utf8", $path
		1268	or die "$path: $!";
		1269
		1270	my $source = do { local $/; <$fh> };
		1271
		1272	my %ext = (
		1273	path => $path,
		1274	base => $base,
		1275	pkg => $pkg,
		1276	);
		1277
		1278	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1279	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1280
		1281	$ext{source} =
		1282	"package $pkg; use strict; use utf8;\n"
		1283	. "#line 1 \"$path\"\n{\n"
		1284	. $source
		1285	. "\n};\n1";
		1286
		1287	$todo{$base} = \%ext;
		1288	}
		1289
		1290	my %done;
		1291	while (%todo) {
		1292	my $progress;
		1293
		1294	while (my ($k, $v) = each %todo) {
		1295	for (split /,\s*/, $v->{meta}{depends}) {
		1296	goto skip
		1297	unless exists $done{$_};
		1298	}
		1299
		1300	warn "... loading '$k' into '$v->{pkg}'\n";
		1301
		1302	unless (eval $v->{source}) {
		1303	my $msg = $@ ? "$v->{path}: $@\n"
		1304	: "$v->{base}: extension inactive.\n";
		1305
		1306	if (exists $v->{meta}{mandatory}) {
		1307	warn $msg;
		1308	warn "mandatory extension failed to load, exiting.\n";
		1309	exit 1;
		1310	}
		1311
		1312	warn $msg;
		1313	}
		1314
		1315	$done{$k} = delete $todo{$k};
		1316	push @EXTS, $v->{pkg};
		1317	$progress = 1;
		1318	}
		1319
		1320	skip:
		1321	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1322	unless $progress;
		1323	}
		1324	};
		1325	}
		1326
		1327	#############################################################################
		1328
		1329	=back
		1330
		1331	=head2 CORE EXTENSIONS
		1332
		1333	Functions and methods that extend core crossfire objects.
		1334
		1335	=cut
		1336
		1337	package cf::player;
		1338
		1339	use Coro::AIO;
		1340
		1341	=head3 cf::player
		1342
		1343	=over 4
		1344
		1345	=item cf::player::num_playing
		1346
		1347	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1348
		1349	=cut
		1350
		1351	sub num_playing {
		1352	scalar grep
		1353	$_->ob->map
		1354	&& !$_->hidden
		1355	&& !$_->ob->flag (cf::FLAG_WIZ),
		1356	cf::player::list
		1357	}
		1358
		1359	=item cf::player::find $login
		1360
		1361	Returns the given player object, loading it if necessary (might block).
		1362
		1363	=cut
		1364
		1365	sub playerdir($) {
		1366	"$PLAYERDIR/"
		1367	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1368	}
		1369
		1370	sub path($) {
		1371	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1372
		1373	(playerdir $login) . "/playerdata"
		1374	}
		1375
		1376	sub find_active($) {
		1377	$cf::PLAYER{$_[0]}
		1378	and $cf::PLAYER{$_[0]}->active
		1379	and $cf::PLAYER{$_[0]}
		1380	}
		1381
		1382	sub exists($) {
		1383	my ($login) = @_;
		1384
		1385	$cf::PLAYER{$login}
		1386	or cf::sync_job { !aio_stat path $login }
		1387	}
		1388
		1389	sub find($) {
		1390	return $cf::PLAYER{$_[0]} || do {
		1391	my $login = $_[0];
		1392
		1393	my $guard = cf::lock_acquire "user_find:$login";
		1394
		1395	$cf::PLAYER{$_[0]} || do {
		1396	# rename old playerfiles to new ones
		1397	#TODO: remove when no longer required
		1398	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1399	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1400	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1401	aio_unlink +(playerdir $login) . "/$login.pl";
		1402
		1403	my $f = new_from_file cf::object::thawer path $login
		1404	or return;
		1405
		1406	my $pl = cf::player::load_pl $f
		1407	or return;
		1408	local $cf::PLAYER_LOADING{$login} = $pl;
		1409	$f->resolve_delayed_derefs;
		1410	$cf::PLAYER{$login} = $pl
		1411	}
		1412	}
		1413	}
		1414
		1415	sub save($) {
		1416	my ($pl) = @_;
		1417
		1418	return if $pl->{deny_save};
		1419
		1420	my $path = path $pl;
		1421	my $guard = cf::lock_acquire "user_save:$path";
		1422
		1423	return if $pl->{deny_save};
		1424
		1425	aio_mkdir playerdir $pl, 0770;
		1426	$pl->{last_save} = $cf::RUNTIME;
		1427
		1428	$pl->save_pl ($path);
		1429	cf::cede_to_tick;
		1430	}
		1431
		1432	sub new($) {
		1433	my ($login) = @_;
		1434
		1435	my $self = create;
		1436
		1437	$self->ob->name ($login);
		1438	$self->{deny_save} = 1;
		1439
		1440	$cf::PLAYER{$login} = $self;
		1441
		1442	$self
		1443	}
		1444
		1445	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1446
		1447	=cut
		1448
		1449	sub send_msg {
		1450	my $ns = shift->ns
		1451	or return;
		1452	$ns->send_msg (@_);
		1453	}
		1454
		1455	=item $pl->quit_character
		1456
		1457	Nukes the player without looking back. If logged in, the connection will
		1458	be destroyed. May block for a long time.
		1459
		1460	=cut
		1461
		1462	sub quit_character {
		1463	my ($pl) = @_;
		1464
		1465	my $name = $pl->ob->name;
		1466
		1467	$pl->{deny_save} = 1;
		1468	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1469
		1470	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1471	$pl->deactivate;
		1472	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1473	$pl->ns->destroy if $pl->ns;
		1474
		1475	my $path = playerdir $pl;
		1476	my $temp = "$path~$cf::RUNTIME~deleting~";
		1477	aio_rename $path, $temp;
		1478	delete $cf::PLAYER{$pl->ob->name};
		1479	$pl->destroy;
		1480
		1481	my $prefix = qr<^~\Q$name\E/>;
		1482
		1483	# nuke player maps
		1484	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1485
		1486	IO::AIO::aio_rmtree $temp;
		1487	}
		1488
		1489	=item $pl->kick
		1490
		1491	Kicks a player out of the game. This destroys the connection.
		1492
		1493	=cut
		1494
		1495	sub kick {
		1496	my ($pl, $kicker) = @_;
		1497
		1498	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1499	$pl->killer ("kicked");
		1500	$pl->ns->destroy;
		1501	}
		1502
		1503	=item cf::player::list_logins
		1504
		1505	Returns am arrayref of all valid playernames in the system, can take a
		1506	while and may block, so not sync_job-capable, ever.
		1507
		1508	=cut
		1509
		1510	sub list_logins {
		1511	my $dirs = aio_readdir $PLAYERDIR
		1512	or return [];
		1513
		1514	my @logins;
		1515
		1516	for my $login (@$dirs) {
		1517	my $path = path $login;
		1518
		1519	# a .pst is a dead give-away for a valid player
		1520	unless (-e "$path.pst") {
		1521	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1522	aio_read $fh, 0, 512, my $buf, 0 or next;
		1523	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1524	}
		1525
		1526	utf8::decode $login;
		1527	push @logins, $login;
		1528	}
		1529
		1530	\@logins
		1531	}
		1532
		1533	=item $player->maps
		1534
		1535	Returns an arrayref of map paths that are private for this
		1536	player. May block.
		1537
		1538	=cut
		1539
		1540	sub maps($) {
		1541	my ($pl) = @_;
		1542
		1543	$pl = ref $pl ? $pl->ob->name : $pl;
		1544
		1545	my $files = aio_readdir playerdir $pl
		1546	or return;
		1547
		1548	my @paths;
		1549
		1550	for (@$files) {
		1551	utf8::decode $_;
		1552	next if /\.(?:pl|pst)$/;
		1553	next unless /^$PATH_SEP/o;
		1554
		1555	push @paths, cf::map::normalise "~$pl/$_";
		1556	}
		1557
		1558	\@paths
		1559	}
		1560
		1561	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1562
		1563	Expand crossfire pod fragments into protocol xml.
		1564
		1565	=cut
		1566
		1567	use re 'eval';
		1568
		1569	my $group;
		1570	my $interior; $interior = qr{
		1571	# match a pod interior sequence sans C<< >>
		1572	(?:
		1573	\ (.*?)\ (?{ $group = $^N })
		1574	| < (??{$interior}) >
		1575	)
		1576	}x;
		1577
		1578	sub expand_cfpod {
		1579	my ($self, $pod) = @_;
		1580
		1581	my $xml;
		1582
		1583	while () {
		1584	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1585	$group = $1;
		1586
		1587	$group =~ s/&/&amp;/g;
		1588	$group =~ s/</&lt;/g;
		1589
		1590	$xml .= $group;
		1591	} elsif ($pod =~ m%\G
		1592	([BCGHITU])
		1593	<
		1594	(?:
		1595	([^<>]*) (?{ $group = $^N })
		1596	| < $interior >
		1597	)
		1598	>
		1599	%gcsx
		1600	) {
		1601	my ($code, $data) = ($1, $group);
		1602
		1603	if ($code eq "B") {
		1604	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1605	} elsif ($code eq "I") {
		1606	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1607	} elsif ($code eq "U") {
		1608	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1609	} elsif ($code eq "C") {
		1610	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1611	} elsif ($code eq "T") {
		1612	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1613	} elsif ($code eq "G") {
		1614	my ($male, $female) = split /\|/, $data;
		1615	$data = $self->gender ? $female : $male;
		1616	$xml .= expand_cfpod ($self, $data);
		1617	} elsif ($code eq "H") {
		1618	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1619	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1620	"")
		1621	[$self->{hintmode}];
		1622	} else {
		1623	$xml .= "error processing '$code($data)' directive";
		1624	}
		1625	} else {
		1626	if ($pod =~ /\G(.+)/) {
		1627	warn "parse error while expanding $pod (at $1)";
		1628	}
		1629	last;
		1630	}
		1631	}
		1632
		1633	for ($xml) {
		1634	# create single paragraphs (very hackish)
		1635	s/(?<=\S)\n(?=\w)/ /g;
		1636
		1637	# compress some whitespace
		1638	s/\s+\n/\n/g; # ws line-ends
		1639	s/\n\n+/\n/g; # double lines
		1640	s/^\n+//; # beginning lines
		1641	s/\n+$//; # ending lines
		1642	}
		1643
		1644	$xml
		1645	}
		1646
		1647	no re 'eval';
		1648
		1649	sub hintmode {
		1650	$_[0]{hintmode} = $_[1] if @_ > 1;
		1651	$_[0]{hintmode}
		1652	}
		1653
		1654	=item $player->ext_reply ($msgid, @msg)
		1655
		1656	Sends an ext reply to the player.
		1657
		1658	=cut
		1659
		1660	sub ext_reply($$@) {
		1661	my ($self, $id, @msg) = @_;
		1662
		1663	$self->ns->ext_reply ($id, @msg)
		1664	}
		1665
		1666	=item $player->ext_msg ($type, @msg)
		1667
		1668	Sends an ext event to the client.
		1669
		1670	=cut
		1671
		1672	sub ext_msg($$@) {
		1673	my ($self, $type, @msg) = @_;
		1674
		1675	$self->ns->ext_msg ($type, @msg);
		1676	}
		1677
		1678	=head3 cf::region
		1679
		1680	=over 4
		1681
		1682	=cut
		1683
		1684	package cf::region;
		1685
		1686	=item cf::region::find_by_path $path
		1687
		1688	Tries to decuce the likely region for a map knowing only its path.
		1689
		1690	=cut
		1691
		1692	sub find_by_path($) {
901	my ($path) = @_;	1693	my ($path) = @_;
902		1694
903	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1695	my ($match, $specificity);
904	my $base = $1;
905	my $pkg = $1;
906	$pkg =~ s/[^[:word:]]/_/g;
907	$pkg = "ext::$pkg";
908		1696
909	warn "loading '$path' into '$pkg'\n";	1697	for my $region (list) {
910		1698	if ($region->{match} && $path =~ $region->{match}) {
911	open my $fh, "<:utf8", $path	1699	($match, $specificity) = ($region, $region->specificity)
912	or die "$path: $!";	1700	if $region->specificity > $specificity;
913		1701	}
914	my $source =
915	"package $pkg; use strict; use utf8;\n"
916	. "#line 1 \"$path\"\n{\n"
917	. (do { local $/; <$fh> })
918	. "\n};\n1";
919
920	eval $source
921	or die $@ ? "$path: $@\n"
922	: "extension disabled.\n";
923
924	push @exts, $pkg;
925	$ext_pkg{$base} = $pkg;
926
927	# no strict 'refs';
928	# @{"$pkg\::ISA"} = ext::;
929
930	register $base, $pkg;
931	}
932
933	sub unload_extension {
934	my ($pkg) = @_;
935
936	warn "removing extension $pkg\n";
937
938	# remove hooks
939	#TODO
940	# for my $idx (0 .. $#PLUGIN_EVENT) {
941	# delete $hook[$idx]{$pkg};
942	# }	1702	}
943		1703
944	# remove commands	1704	$match
945	for my $name (keys %COMMAND) {
946	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
947
948	if (@cb) {
949	$COMMAND{$name} = \@cb;
950	} else {
951	delete $COMMAND{$name};
952	}
953	}
954
955	# remove extcmds
956	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
957	delete $EXTCMD{$name};
958	}
959
960	if (my $cb = $pkg->can ("unload")) {
961	eval {
962	$cb->($pkg);
963	1
964	} or warn "$pkg unloaded, but with errors: $@";
965	}
966
967	Symbol::delete_package $pkg;
968	}
969
970	sub load_extensions {
971	for my $ext (<$LIBDIR/*.ext>) {
972	next unless -r $ext;
973	eval {
974	load_extension $ext;
975	1
976	} or warn "$ext not loaded: $@";
977	}
978	}
979
980	#############################################################################
981	# load/save/clean perl data associated with a map
982
983	*cf::mapsupport::on_clean = sub {
984	my ($map) = @_;
985
986	my $path = $map->tmpname;
987	defined $path or return;
988
989	unlink "$path.pst";
990	};
991
992	cf::map->attach (prio => -10000, package => cf::mapsupport::);
993
994	#############################################################################
995	# load/save perl data associated with player->ob objects
996
997	sub all_objects(@) {
998	@_, map all_objects ($_->inv), @_
999	}
1000
1001	# TODO: compatibility cruft, remove when no longer needed
1002	cf::player->attach (
1003	on_load => sub {
1004	my ($pl, $path) = @_;
1005
1006	for my $o (all_objects $pl->ob) {
1007	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1008	$o->set_ob_key_value ("_perl_data");
1009
1010	%$o = %{ Storable::thaw pack "H*", $value };
1011	}
1012	}
1013	},
1014	);
1015
1016	#############################################################################
1017
1018	=head2 CORE EXTENSIONS
1019
1020	Functions and methods that extend core crossfire objects.
1021
1022	=head3 cf::player
1023
1024	=over 4
1025
1026	=item cf::player::exists $login
1027
1028	Returns true when the given account exists.
1029
1030	=cut
1031
1032	sub cf::player::exists($) {
1033	cf::player::find $_[0]
1034	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1035	}
1036
1037	=item $player->ext_reply ($msgid, $msgtype, %msg)
1038
1039	Sends an ext reply to the player.
1040
1041	=cut
1042
1043	sub cf::player::ext_reply($$$%) {
1044	my ($self, $id, %msg) = @_;
1045
1046	$msg{msgid} = $id;
1047
1048	$self->send ("ext " . to_json \%msg);
1049	}	1705	}
1050		1706
1051	=back	1707	=back
1052
1053		1708
1054	=head3 cf::map	1709	=head3 cf::map
1055		1710
1056	=over 4	1711	=over 4
1057		1712
…		…
1060	package cf::map;	1715	package cf::map;
1061		1716
1062	use Fcntl;	1717	use Fcntl;
1063	use Coro::AIO;	1718	use Coro::AIO;
1064		1719
		1720	use overload
		1721	'""' => \&as_string,
		1722	fallback => 1;
		1723
1065	our $MAX_RESET = 7200;	1724	our $MAX_RESET = 3600;
1066	our $DEFAULT_RESET = 3600;	1725	our $DEFAULT_RESET = 3000;
1067		1726
1068	sub generate_random_map {	1727	sub generate_random_map {
1069	my ($path, $rmp) = @_;	1728	my ($self, $rmp) = @_;
1070
1071	# mit "rum" bekleckern, nicht	1729	# mit "rum" bekleckern, nicht
1072	cf::map::_create_random_map	1730	$self->_create_random_map (
1073	$path,
1074	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1731	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1075	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1732	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1076	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1733	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1077	$rmp->{exit_on_final_map},	1734	$rmp->{exit_on_final_map},
1078	$rmp->{xsize}, $rmp->{ysize},	1735	$rmp->{xsize}, $rmp->{ysize},
1079	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1736	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1080	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1737	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1081	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1738	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1082	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1739	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1083	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1740	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1084	(cf::region::find $rmp->{region})	1741	(cf::region::find $rmp->{region}), $rmp->{custom}
		1742	)
		1743	}
		1744
		1745	=item cf::map->register ($regex, $prio)
		1746
		1747	Register a handler for the map path matching the given regex at the
		1748	givne priority (higher is better, built-in handlers have priority 0, the
		1749	default).
		1750
		1751	=cut
		1752
		1753	sub register {
		1754	my (undef, $regex, $prio) = @_;
		1755	my $pkg = caller;
		1756
		1757	no strict;
		1758	push @{"$pkg\::ISA"}, __PACKAGE__;
		1759
		1760	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1761	}
		1762
		1763	# also paths starting with '/'
		1764	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1765
		1766	sub thawer_merge {
		1767	my ($self, $merge) = @_;
		1768
		1769	# we have to keep some variables in memory intact
		1770	local $self->{path};
		1771	local $self->{load_path};
		1772
		1773	$self->SUPER::thawer_merge ($merge);
		1774	}
		1775
		1776	sub normalise {
		1777	my ($path, $base) = @_;
		1778
		1779	$path = "$path"; # make sure its a string
		1780
		1781	$path =~ s/\.map$//;
		1782
		1783	# map plan:
		1784	#
		1785	# /! non-realised random map exit (special hack!)
		1786	# {... are special paths that are not being touched
		1787	# ?xxx/... are special absolute paths
		1788	# ?random/... random maps
		1789	# /... normal maps
		1790	# ~user/... per-player map of a specific user
		1791
		1792	$path =~ s/$PATH_SEP/\//go;
		1793
		1794	# treat it as relative path if it starts with
		1795	# something that looks reasonable
		1796	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1797	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1798
		1799	$base =~ s{[^/]+/?$}{};
		1800	$path = "$base/$path";
		1801	}
		1802
		1803	for ($path) {
		1804	redo if s{//}{/};
		1805	redo if s{/\.?/}{/};
		1806	redo if s{/[^/]+/\.\./}{/};
		1807	}
		1808
		1809	$path
		1810	}
		1811
		1812	sub new_from_path {
		1813	my (undef, $path, $base) = @_;
		1814
		1815	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1816
		1817	$path = normalise $path, $base;
		1818
		1819	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1820	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1821	my $self = bless cf::map::new, $pkg;
		1822	$self->{path} = $path; $self->path ($path);
		1823	$self->init; # pass $1 etc.
		1824	return $self;
		1825	}
		1826	}
		1827
		1828	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1829	()
		1830	}
		1831
		1832	sub init {
		1833	my ($self) = @_;
		1834
		1835	$self
		1836	}
		1837
		1838	sub as_string {
		1839	my ($self) = @_;
		1840
		1841	"$self->{path}"
		1842	}
		1843
		1844	# the displayed name, this is a one way mapping
		1845	sub visible_name {
		1846	&as_string
		1847	}
		1848
		1849	# the original (read-only) location
		1850	sub load_path {
		1851	my ($self) = @_;
		1852
		1853	"$MAPDIR/$self->{path}.map"
		1854	}
		1855
		1856	# the temporary/swap location
		1857	sub save_path {
		1858	my ($self) = @_;
		1859
		1860	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1861	"$TMPDIR/$path.map"
		1862	}
		1863
		1864	# the unique path, undef == no special unique path
		1865	sub uniq_path {
		1866	my ($self) = @_;
		1867
		1868	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1869	"$UNIQUEDIR/$path"
1085	}	1870	}
1086		1871
1087	# and all this just because we cannot iterate over	1872	# and all this just because we cannot iterate over
1088	# all maps in C++...	1873	# all maps in C++...
1089	sub change_all_map_light {	1874	sub change_all_map_light {
1090	my ($change) = @_;	1875	my ($change) = @_;
1091		1876
1092	$_->change_map_light ($change) for values %cf::MAP;	1877	$_->change_map_light ($change)
		1878	for grep $_->outdoor, values %cf::MAP;
1093	}	1879	}
1094		1880
		1881	sub decay_objects {
		1882	my ($self) = @_;
		1883
		1884	return if $self->{deny_reset};
		1885
		1886	$self->do_decay_objects;
		1887	}
		1888
		1889	sub unlink_save {
		1890	my ($self) = @_;
		1891
		1892	utf8::encode (my $save = $self->save_path);
		1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1894	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1895	}
		1896
1095	sub try_load_header($) {	1897	sub load_header_from($) {
1096	my ($path) = @_;	1898	my ($self, $path) = @_;
1097		1899
1098	utf8::encode $path;	1900	utf8::encode $path;
1099	aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1100	or return;	1902	or return;
1101		1903
1102	my $map = cf::map::new	1904	$self->_load_header ($f)
1103	or return;	1905	or return;
1104		1906
1105	$map->load_header ($path)	1907	local $MAP_LOADING{$self->{path}} = $self;
		1908	$f->resolve_delayed_derefs;
		1909
		1910	$self->{load_path} = $path;
		1911
		1912	1
		1913	}
		1914
		1915	sub load_header_orig {
		1916	my ($self) = @_;
		1917
		1918	$self->load_header_from ($self->load_path)
		1919	}
		1920
		1921	sub load_header_temp {
		1922	my ($self) = @_;
		1923
		1924	$self->load_header_from ($self->save_path)
		1925	}
		1926
		1927	sub prepare_temp {
		1928	my ($self) = @_;
		1929
		1930	$self->last_access ((delete $self->{last_access})
		1931	|| $cf::RUNTIME); #d#
		1932	# safety
		1933	$self->{instantiate_time} = $cf::RUNTIME
		1934	if $self->{instantiate_time} > $cf::RUNTIME;
		1935	}
		1936
		1937	sub prepare_orig {
		1938	my ($self) = @_;
		1939
		1940	$self->{load_original} = 1;
		1941	$self->{instantiate_time} = $cf::RUNTIME;
		1942	$self->last_access ($cf::RUNTIME);
		1943	$self->instantiate;
		1944	}
		1945
		1946	sub load_header {
		1947	my ($self) = @_;
		1948
		1949	if ($self->load_header_temp) {
		1950	$self->prepare_temp;
		1951	} else {
		1952	$self->load_header_orig
1106	or return;	1953	or return;
		1954	$self->prepare_orig;
		1955	}
1107		1956
1108	$map->{load_path} = $path;	1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
1109		1959
1110	$map	1960	$self->default_region (cf::region::find_by_path $self->{path})
1111	}	1961	unless $self->default_region;
1112		1962
		1963	1
		1964	}
		1965
		1966	sub find;
1113	sub find_map {	1967	sub find {
1114	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1115		1969
1116	#warn "find_map<$path,$origin>\n";#d#
1117
1118	$path = new cf::path $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1119	my $key = $path->as_string;
1120		1971
		1972	cf::lock_wait "map_data:$path";#d#remove
		1973	cf::lock_wait "map_find:$path";
		1974
1121	$cf::MAP{$key} || do {	1975	$cf::MAP{$path} || do {
1122	# do it the slow way	1976	my $guard1 = cf::lock_acquire "map_find:$path";
1123	my $map = try_load_header $path->save_path;	1977	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1124		1978
1125	if ($map) {	1979	my $map = new_from_path cf::map $path
1126	# safety
1127	$map->{instantiate_time} = $cf::RUNTIME
1128	if $map->{instantiate_time} > $cf::RUNTIME;
1129	} else {
1130	if (my $rmp = $path->random_map_params) {
1131	$map = generate_random_map $key, $rmp;
1132	} else {
1133	$map = try_load_header $path->load_path;
1134	}
1135
1136	$map or return;	1980	or return;
1137		1981
1138	$map->{load_original} = 1;
1139	$map->{instantiate_time} = $cf::RUNTIME;
1140	$map->instantiate;
1141
1142	# per-player maps become, after loading, normal maps
1143	$map->per_player (0) if $path->{user_rel};
1144	}
1145
1146	$map->path ($key);
1147	$map->{path} = $path;
1148	$map->{last_save} = $cf::RUNTIME;	1982	$map->{last_save} = $cf::RUNTIME;
1149	$map->last_access ($cf::RUNTIME);
1150		1983
1151	if ($map->should_reset) {	1984	$map->load_header
		1985	or return;
		1986
		1987	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1988	# doing this can freeze the server in a sync job, obviously
		1989	#$cf::WAIT_FOR_TICK->wait;
		1990	undef $guard1;
		1991	undef $guard2;
1152	$map->reset;	1992	$map->reset;
1153	$map = find_map $path;	1993	return find $path;
1154	}	1994	}
1155		1995
1156	$cf::MAP{$key} = $map	1996	$cf::MAP{$path} = $map
1157	}	1997	}
1158	}	1998	}
		1999
		2000	sub pre_load { }
		2001	sub post_load { }
1159		2002
1160	sub load {	2003	sub load {
1161	my ($self) = @_;	2004	my ($self) = @_;
1162		2005
1163	return if $self->in_memory != cf::MAP_SWAPPED;	2006	local $self->{deny_reset} = 1; # loading can take a long time
1164
1165	$self->in_memory (cf::MAP_LOADING);
1166		2007
1167	my $path = $self->{path};	2008	my $path = $self->{path};
1168		2009
		2010	{
		2011	my $guard = cf::lock_acquire "map_data:$path";
		2012
		2013	return unless $self->valid;
		2014	return unless $self->in_memory == cf::MAP_SWAPPED;
		2015
		2016	$self->in_memory (cf::MAP_LOADING);
		2017
1169	$self->alloc;	2018	$self->alloc;
1170	$self->load_objects ($self->{load_path}, 1)	2019
		2020	$self->pre_load;
		2021	cf::cede_to_tick;
		2022
		2023	my $f = new_from_file cf::object::thawer $self->{load_path};
		2024	$f->skip_block;
		2025	$self->_load_objects ($f)
1171	or return;	2026	or return;
1172		2027
1173	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2028	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1174	if delete $self->{load_original};	2029	if delete $self->{load_original};
1175		2030
1176	if (my $uniq = $path->uniq_path) {	2031	if (my $uniq = $self->uniq_path) {
1177	utf8::encode $uniq;	2032	utf8::encode $uniq;
1178	if (aio_open $uniq, O_RDONLY, 0) {	2033	unless (aio_stat $uniq) {
		2034	if (my $f = new_from_file cf::object::thawer $uniq) {
1179	$self->clear_unique_items;	2035	$self->clear_unique_items;
1180	$self->load_objects ($uniq, 0);	2036	$self->_load_objects ($f);
		2037	$f->resolve_delayed_derefs;
		2038	}
1181	}	2039	}
1182	}	2040	}
1183		2041
		2042	$f->resolve_delayed_derefs;
		2043
		2044	cf::cede_to_tick;
1184	# now do the right thing for maps	2045	# now do the right thing for maps
1185	$self->link_multipart_objects;	2046	$self->link_multipart_objects;
1186
1187	if ($self->{path}->is_style_map) {
1188	$self->{deny_save} = 1;
1189	$self->{deny_reset} = 1;
1190	} else {
1191	$self->fix_auto_apply;
1192	$self->decay_objects;
1193	$self->update_buttons;
1194	$self->set_darkness_map;
1195	$self->difficulty ($self->estimate_difficulty)	2047	$self->difficulty ($self->estimate_difficulty)
1196	unless $self->difficulty;	2048	unless $self->difficulty;
		2049	cf::cede_to_tick;
		2050
		2051	unless ($self->{deny_activate}) {
		2052	$self->decay_objects;
		2053	$self->fix_auto_apply;
		2054	$self->update_buttons;
		2055	cf::cede_to_tick;
		2056	$self->set_darkness_map;
		2057	cf::cede_to_tick;
1197	$self->activate;	2058	$self->activate;
1198	}	2059	}
1199		2060
		2061	$self->{last_save} = $cf::RUNTIME;
		2062	$self->last_access ($cf::RUNTIME);
		2063
1200	$self->in_memory (cf::MAP_IN_MEMORY);	2064	$self->in_memory (cf::MAP_IN_MEMORY);
1201	}	2065	}
1202		2066
1203	sub load_map_sync {	2067	$self->post_load;
		2068	}
		2069
		2070	sub customise_for {
		2071	my ($self, $ob) = @_;
		2072
		2073	return find "~" . $ob->name . "/" . $self->{path}
		2074	if $self->per_player;
		2075
		2076	# return find "?party/" . $ob->name . "/" . $self->{path}
		2077	# if $self->per_party;
		2078
		2079	$self
		2080	}
		2081
		2082	# find and load all maps in the 3x3 area around a map
		2083	sub load_neighbours {
		2084	my ($map) = @_;
		2085
		2086	my @neigh; # diagonal neighbours
		2087
		2088	for (0 .. 3) {
		2089	my $neigh = $map->tile_path ($_)
		2090	or next;
		2091	$neigh = find $neigh, $map
		2092	or next;
		2093	$neigh->load;
		2094
		2095	push @neigh,
		2096	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2097	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2098	}
		2099
		2100	for (grep defined $_->[0], @neigh) {
		2101	my ($path, $origin) = @$_;
		2102	my $neigh = find $path, $origin
		2103	or next;
		2104	$neigh->load;
		2105	}
		2106	}
		2107
		2108	sub find_sync {
1204	my ($path, $origin) = @_;	2109	my ($path, $origin) = @_;
1205		2110
1206	#warn "load_map_sync<$path, $origin>\n";#d#	2111	cf::sync_job { find $path, $origin }
		2112	}
1207		2113
1208	cf::sync_job {	2114	sub do_load_sync {
1209	my $map = cf::map::find_map $path, $origin	2115	my ($map) = @_;
1210	or return;	2116
1211	$map->load;	2117	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1212	$map	2118	if $Coro::current == $Coro::main;
		2119
		2120	cf::sync_job { $map->load };
		2121	}
		2122
		2123	our %MAP_PREFETCH;
		2124	our $MAP_PREFETCHER = undef;
		2125
		2126	sub find_async {
		2127	my ($path, $origin, $load) = @_;
		2128
		2129	$path = normalise $path, $origin && $origin->{path};
		2130
		2131	if (my $map = $cf::MAP{$path}) {
		2132	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2133	}
		2134
		2135	$MAP_PREFETCH{$path} |= $load;
		2136
		2137	$MAP_PREFETCHER ||= cf::async {
		2138	$Coro::current->{desc} = "map prefetcher";
		2139
		2140	while (%MAP_PREFETCH) {
		2141	while (my ($k, $v) = each %MAP_PREFETCH) {
		2142	if (my $map = find $k) {
		2143	$map->load if $v;
		2144	}
		2145
		2146	delete $MAP_PREFETCH{$k};
		2147	}
		2148	}
		2149	undef $MAP_PREFETCHER;
1213	}	2150	};
		2151	$MAP_PREFETCHER->prio (6);
		2152
		2153	()
1214	}	2154	}
1215		2155
1216	sub save {	2156	sub save {
1217	my ($self) = @_;	2157	my ($self) = @_;
1218		2158
1219	my $save = $self->{path}->save_path; utf8::encode $save;	2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
1220	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1221		2160
1222	$self->{last_save} = $cf::RUNTIME;	2161	$self->{last_save} = $cf::RUNTIME;
1223		2162
1224	return unless $self->dirty;	2163	return unless $self->dirty;
1225		2164
		2165	my $save = $self->save_path; utf8::encode $save;
		2166	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2167
1226	$self->{load_path} = $save;	2168	$self->{load_path} = $save;
1227		2169
1228	return if $self->{deny_save};	2170	return if $self->{deny_save};
1229		2171
		2172	local $self->{last_access} = $self->last_access;#d#
		2173
		2174	cf::async {
		2175	$Coro::current->{desc} = "map player save";
		2176	$_->contr->save for $self->players;
		2177	};
		2178
1230	if ($uniq) {	2179	if ($uniq) {
1231	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2180	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1232	$self->save_objects ($uniq, cf::IO_UNIQUES);	2181	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1233	} else {	2182	} else {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2183	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1235	}	2184	}
1236	}	2185	}
1237		2186
1238	sub swap_out {	2187	sub swap_out {
1239	my ($self) = @_;	2188	my ($self) = @_;
		2189
		2190	# save first because save cedes
		2191	$self->save;
		2192
		2193	my $lock = cf::lock_acquire "map_data:$self->{path}";
1240		2194
1241	return if $self->players;	2195	return if $self->players;
1242	return if $self->in_memory != cf::MAP_IN_MEMORY;	2196	return if $self->in_memory != cf::MAP_IN_MEMORY;
1243	return if $self->{deny_save};	2197	return if $self->{deny_save};
1244		2198
		2199	$self->in_memory (cf::MAP_SWAPPED);
		2200
1245	$self->save;	2201	$self->deactivate;
		2202	$_->clear_links_to ($self) for values %cf::MAP;
1246	$self->clear;	2203	$self->clear;
1247	$self->in_memory (cf::MAP_SWAPPED);
1248	}	2204	}
1249		2205
1250	sub reset_at {	2206	sub reset_at {
1251	my ($self) = @_;	2207	my ($self) = @_;
1252		2208
1253	# TODO: safety, remove and allow resettable per-player maps	2209	# TODO: safety, remove and allow resettable per-player maps
1254	return 1e99 if $self->{path}{user_rel};
1255	return 1e99 if $self->{deny_reset};	2210	return 1e99 if $self->{deny_reset};
1256		2211
1257	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2212	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1258	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2213	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1259		2214
…		…
1264	my ($self) = @_;	2219	my ($self) = @_;
1265		2220
1266	$self->reset_at <= $cf::RUNTIME	2221	$self->reset_at <= $cf::RUNTIME
1267	}	2222	}
1268		2223
1269	sub unlink_save {
1270	my ($self) = @_;
1271
1272	utf8::encode (my $save = $self->{path}->save_path);
1273	aioreq_pri 3; IO::AIO::aio_unlink $save;
1274	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1275	}
1276
1277	sub rename {
1278	my ($self, $new_path) = @_;
1279
1280	$self->unlink_save;
1281
1282	delete $cf::MAP{$self->path};
1283	$self->{path} = new cf::path $new_path;
1284	$self->path ($self->{path}->as_string);
1285	$cf::MAP{$self->path} = $self;
1286
1287	$self->save;
1288	}
1289
1290	sub reset {	2224	sub reset {
1291	my ($self) = @_;	2225	my ($self) = @_;
1292		2226
		2227	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2228
1293	return if $self->players;	2229	return if $self->players;
1294	return if $self->{path}{user_rel};#d#
1295		2230
1296	warn "resetting map ", $self->path;#d#	2231	warn "resetting map ", $self->path;
		2232
		2233	$self->in_memory (cf::MAP_SWAPPED);
		2234
		2235	# need to save uniques path
		2236	unless ($self->{deny_save}) {
		2237	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2238
		2239	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2240	if $uniq;
		2241	}
1297		2242
1298	delete $cf::MAP{$self->path};	2243	delete $cf::MAP{$self->path};
1299		2244
		2245	$self->deactivate;
1300	$_->clear_links_to ($self) for values %cf::MAP;	2246	$_->clear_links_to ($self) for values %cf::MAP;
		2247	$self->clear;
1301		2248
1302	$self->unlink_save;	2249	$self->unlink_save;
1303	$self->destroy;	2250	$self->destroy;
1304	}	2251	}
1305		2252
1306	my $nuke_counter = "aaaa";	2253	my $nuke_counter = "aaaa";
1307		2254
1308	sub nuke {	2255	sub nuke {
1309	my ($self) = @_;	2256	my ($self) = @_;
1310		2257
		2258	{
		2259	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2260
		2261	delete $cf::MAP{$self->path};
		2262
		2263	$self->unlink_save;
		2264
		2265	bless $self, "cf::map";
		2266	delete $self->{deny_reset};
1311	$self->{deny_save} = 1;	2267	$self->{deny_save} = 1;
1312	$self->reset_timeout (1);	2268	$self->reset_timeout (1);
1313	$self->rename ("{nuke}/" . ($nuke_counter++));	2269	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2270
		2271	$cf::MAP{$self->path} = $self;
		2272	}
		2273
1314	$self->reset; # polite request, might not happen	2274	$self->reset; # polite request, might not happen
1315	}	2275	}
1316		2276
1317	sub customise_for {	2277	=item $maps = cf::map::tmp_maps
1318	my ($map, $ob) = @_;
1319		2278
1320	if ($map->per_player) {	2279	Returns an arrayref with all map paths of currently instantiated and saved
1321	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2280	maps. May block.
		2281
		2282	=cut
		2283
		2284	sub tmp_maps() {
1322	}	2285	[
1323		2286	map {
1324	$map	2287	utf8::decode $_;
		2288	/\.map$/
		2289	? normalise $_
		2290	: ()
		2291	} @{ aio_readdir $TMPDIR or [] }
		2292	]
1325	}	2293	}
1326		2294
1327	sub emergency_save {	2295	=item $maps = cf::map::random_maps
1328	local $cf::FREEZE = 1;
1329		2296
1330	warn "enter emergency map save\n";	2297	Returns an arrayref with all map paths of currently instantiated and saved
		2298	random maps. May block.
1331		2299
1332	cf::sync_job {	2300	=cut
1333	warn "begin emergency map save\n";
1334	$_->save for values %cf::MAP;
1335	};
1336		2301
1337	warn "end emergency map save\n";	2302	sub random_maps() {
		2303	[
		2304	map {
		2305	utf8::decode $_;
		2306	/\.map$/
		2307	? normalise "?random/$_"
		2308	: ()
		2309	} @{ aio_readdir $RANDOMDIR or [] }
		2310	]
		2311	}
		2312
		2313	=item cf::map::unique_maps
		2314
		2315	Returns an arrayref of paths of all shared maps that have
		2316	instantiated unique items. May block.
		2317
		2318	=cut
		2319
		2320	sub unique_maps() {
		2321	[
		2322	map {
		2323	utf8::decode $_;
		2324	/\.map$/
		2325	? normalise $_
		2326	: ()
		2327	} @{ aio_readdir $UNIQUEDIR or [] }
		2328	]
1338	}	2329	}
1339		2330
1340	package cf;	2331	package cf;
1341		2332
1342	=back	2333	=back
1343		2334
		2335	=head3 cf::object
		2336
		2337	=cut
		2338
		2339	package cf::object;
		2340
		2341	=over 4
		2342
		2343	=item $ob->inv_recursive
		2344
		2345	Returns the inventory of the object _and_ their inventories, recursively.
		2346
		2347	=cut
		2348
		2349	sub inv_recursive_;
		2350	sub inv_recursive_ {
		2351	map { $_, inv_recursive_ $_->inv } @_
		2352	}
		2353
		2354	sub inv_recursive {
		2355	inv_recursive_ inv $_[0]
		2356	}
		2357
		2358	=item $ref = $ob->ref
		2359
		2360	creates and returns a persistent reference to an objetc that can be stored as a string.
		2361
		2362	=item $ob = cf::object::deref ($refstring)
		2363
		2364	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2365	even if the object actually exists. May block.
		2366
		2367	=cut
		2368
		2369	sub deref {
		2370	my ($ref) = @_;
		2371
		2372	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2373	my ($uuid, $name) = ($1, $2);
		2374	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2375	or return;
		2376	$pl->ob->uuid eq $uuid
		2377	or return;
		2378
		2379	$pl->ob
		2380	} else {
		2381	warn "$ref: cannot resolve object reference\n";
		2382	undef
		2383	}
		2384	}
		2385
		2386	package cf;
		2387
		2388	=back
1344		2389
1345	=head3 cf::object::player	2390	=head3 cf::object::player
1346		2391
1347	=over 4	2392	=over 4
1348		2393
…		…
1362		2407
1363	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2408	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1364		2409
1365	if ($self->{record_replies}) {	2410	if ($self->{record_replies}) {
1366	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2411	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2412
1367	} else {	2413	} else {
		2414	my $pl = $self->contr;
		2415
		2416	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2417	my $dialog = $pl->{npc_dialog};
		2418	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2419
		2420	} else {
1368	$msg = $npc->name . " says: $msg" if $npc;	2421	$msg = $npc->name . " says: $msg" if $npc;
1369	$self->message ($msg, $flags);	2422	$self->message ($msg, $flags);
		2423	}
1370	}	2424	}
		2425	}
		2426
		2427	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2428
		2429	=cut
		2430
		2431	sub cf::object::send_msg {
		2432	my $pl = shift->contr
		2433	or return;
		2434	$pl->send_msg (@_);
1371	}	2435	}
1372		2436
1373	=item $player_object->may ("access")	2437	=item $player_object->may ("access")
1374		2438
1375	Returns wether the given player is authorized to access resource "access"	2439	Returns wether the given player is authorized to access resource "access"
…		…
1388		2452
1389	=item $player_object->enter_link	2453	=item $player_object->enter_link
1390		2454
1391	Freezes the player and moves him/her to a special map (C<{link}>).	2455	Freezes the player and moves him/her to a special map (C<{link}>).
1392		2456
1393	The player should be reaosnably safe there for short amounts of time. You	2457	The player should be reasonably safe there for short amounts of time. You
1394	I<MUST> call C<leave_link> as soon as possible, though.	2458	I<MUST> call C<leave_link> as soon as possible, though.
1395		2459
		2460	Will never block.
		2461
1396	=item $player_object->leave_link ($map, $x, $y)	2462	=item $player_object->leave_link ($map, $x, $y)
1397		2463
1398	Moves the player out of the specila link map onto the given map. If the	2464	Moves the player out of the special C<{link}> map onto the specified
1399	map is not valid (or omitted), the player will be moved back to the	2465	map. If the map is not valid (or omitted), the player will be moved back
1400	location he/she was before the call to C<enter_link>, or, if that fails,	2466	to the location he/she was before the call to C<enter_link>, or, if that
1401	to the emergency map position.	2467	fails, to the emergency map position.
1402		2468
1403	Might block.	2469	Might block.
1404		2470
1405	=cut	2471	=cut
		2472
		2473	sub link_map {
		2474	unless ($LINK_MAP) {
		2475	$LINK_MAP = cf::map::find "{link}"
		2476	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2477	$LINK_MAP->load;
		2478	}
		2479
		2480	$LINK_MAP
		2481	}
1406		2482
1407	sub cf::object::player::enter_link {	2483	sub cf::object::player::enter_link {
1408	my ($self) = @_;	2484	my ($self) = @_;
1409		2485
1410	return if $self->map == $LINK_MAP;
1411
1412	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1413	if $self->map;
1414
1415	$self->enter_map ($LINK_MAP, 20, 20);
1416	$self->deactivate_recursive;	2486	$self->deactivate_recursive;
		2487
		2488	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2489
		2490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2491	if $self->map && $self->map->{path} ne "{link}";
		2492
		2493	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1417	}	2494	}
1418		2495
1419	sub cf::object::player::leave_link {	2496	sub cf::object::player::leave_link {
1420	my ($self, $map, $x, $y) = @_;	2497	my ($self, $map, $x, $y) = @_;
		2498
		2499	return unless $self->contr->active;
1421		2500
1422	my $link_pos = delete $self->{_link_pos};	2501	my $link_pos = delete $self->{_link_pos};
1423		2502
1424	unless ($map) {	2503	unless ($map) {
1425	# restore original map position	2504	# restore original map position
1426	($map, $x, $y) = @{ $link_pos || [] };	2505	($map, $x, $y) = @{ $link_pos || [] };
1427	$map = cf::map::find_map $map;	2506	$map = cf::map::find $map;
1428		2507
1429	unless ($map) {	2508	unless ($map) {
1430	($map, $x, $y) = @$EMERGENCY_POSITION;	2509	($map, $x, $y) = @$EMERGENCY_POSITION;
1431	$map = cf::map::find_map $map	2510	$map = cf::map::find $map
1432	or die "FATAL: cannot load emergency map\n";	2511	or die "FATAL: cannot load emergency map\n";
1433	}	2512	}
1434	}	2513	}
1435		2514
1436	($x, $y) = (-1, -1)	2515	($x, $y) = (-1, -1)
…		…
1439	# use -1 or undef as default coordinates, not 0, 0	2518	# use -1 or undef as default coordinates, not 0, 0
1440	($x, $y) = ($map->enter_x, $map->enter_y)	2519	($x, $y) = ($map->enter_x, $map->enter_y)
1441	if $x <=0 && $y <= 0;	2520	if $x <=0 && $y <= 0;
1442		2521
1443	$map->load;	2522	$map->load;
		2523	$map->load_neighbours;
1444		2524
		2525	return unless $self->contr->active;
1445	$self->activate_recursive;	2526	$self->activate_recursive;
		2527
		2528	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1446	$self->enter_map ($map, $x, $y);	2529	$self->enter_map ($map, $x, $y);
1447	}	2530	}
1448		2531
1449	=item $player_object->goto_map ($map, $x, $y)	2532	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1450		2533
1451	=cut	2534	Moves the player to the given map-path and coordinates by first freezing
		2535	her, loading and preparing them map, calling the provided $check callback
		2536	that has to return the map if sucecssful, and then unfreezes the player on
		2537	the new (success) or old (failed) map position. In either case, $done will
		2538	be called at the end of this process.
1452		2539
		2540	=cut
		2541
		2542	our $GOTOGEN;
		2543
1453	sub cf::object::player::goto_map {	2544	sub cf::object::player::goto {
1454	my ($self, $path, $x, $y) = @_;	2545	my ($self, $path, $x, $y, $check, $done) = @_;
		2546
		2547	# do generation counting so two concurrent goto's will be executed in-order
		2548	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1455		2549
1456	$self->enter_link;	2550	$self->enter_link;
1457		2551
1458	(Coro::async {	2552	(async {
1459	$path = new cf::path $path;	2553	$Coro::current->{desc} = "player::goto $path $x $y";
1460		2554
1461	my $map = cf::map::find_map $path->as_string;	2555	# *tag paths override both path and x|y
		2556	if ($path =~ /^\*(.*)$/) {
		2557	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2558	my $ob = $obs[rand @obs];
		2559
		2560	# see if we actually can go there
		2561	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2562	$ob = $obs[rand @obs];
		2563	} else {
		2564	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2565	}
		2566	# else put us there anyways for now #d#
		2567
		2568	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2569	} else {
		2570	($path, $x, $y) = (undef, undef, undef);
		2571	}
		2572	}
		2573
		2574	my $map = eval {
		2575	my $map = defined $path ? cf::map::find $path : undef;
		2576
		2577	if ($map) {
1462	$map = $map->customise_for ($self) if $map;	2578	$map = $map->customise_for ($self);
		2579	$map = $check->($map) if $check && $map;
		2580	} else {
		2581	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2582	}
1463		2583
1464	warn "entering ", $map->path, " at ($x, $y)\n"
1465	if $map;	2584	$map
		2585	};
1466		2586
1467	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2587	if ($@) {
		2588	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2589	LOG llevError | logBacktrace, Carp::longmess $@;
		2590	}
1468		2591
		2592	if ($gen == $self->{_goto_generation}) {
		2593	delete $self->{_goto_generation};
1469	$self->leave_link ($map, $x, $y);	2594	$self->leave_link ($map, $x, $y);
		2595	}
		2596
		2597	$done->() if $done;
1470	})->prio (1);	2598	})->prio (1);
1471	}	2599	}
1472		2600
1473	=item $player_object->enter_exit ($exit_object)	2601	=item $player_object->enter_exit ($exit_object)
1474		2602
…		…
1476		2604
1477	sub parse_random_map_params {	2605	sub parse_random_map_params {
1478	my ($spec) = @_;	2606	my ($spec) = @_;
1479		2607
1480	my $rmp = { # defaults	2608	my $rmp = { # defaults
1481	xsize => 10,	2609	xsize => (cf::rndm 15, 40),
1482	ysize => 10,	2610	ysize => (cf::rndm 15, 40),
		2611	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2612	#layout => string,
1483	};	2613	};
1484		2614
1485	for (split /\n/, $spec) {	2615	for (split /\n/, $spec) {
1486	my ($k, $v) = split /\s+/, $_, 2;	2616	my ($k, $v) = split /\s+/, $_, 2;
1487		2617
…		…
1491	$rmp	2621	$rmp
1492	}	2622	}
1493		2623
1494	sub prepare_random_map {	2624	sub prepare_random_map {
1495	my ($exit) = @_;	2625	my ($exit) = @_;
		2626
		2627	my $guard = cf::lock_acquire "exit_prepare:$exit";
1496		2628
1497	# all this does is basically replace the /! path by	2629	# all this does is basically replace the /! path by
1498	# a new random map path (?random/...) with a seed	2630	# a new random map path (?random/...) with a seed
1499	# that depends on the exit object	2631	# that depends on the exit object
1500		2632
1501	my $rmp = parse_random_map_params $exit->msg;	2633	my $rmp = parse_random_map_params $exit->msg;
1502		2634
1503	if ($exit->map) {	2635	if ($exit->map) {
1504	$rmp->{region} = $exit->map->region_name;	2636	$rmp->{region} = $exit->region->name;
1505	$rmp->{origin_map} = $exit->map->path;	2637	$rmp->{origin_map} = $exit->map->path;
1506	$rmp->{origin_x} = $exit->x;	2638	$rmp->{origin_x} = $exit->x;
1507	$rmp->{origin_y} = $exit->y;	2639	$rmp->{origin_y} = $exit->y;
1508	}	2640	}
1509		2641
1510	$rmp->{random_seed} ||= $exit->random_seed;	2642	$rmp->{random_seed} ||= $exit->random_seed;
1511		2643
1512	my $data = cf::to_json $rmp;	2644	my $data = cf::encode_json $rmp;
1513	my $md5 = Digest::MD5::md5_hex $data;	2645	my $md5 = Digest::MD5::md5_hex $data;
		2646	my $meta = "$RANDOMDIR/$md5.meta";
1514		2647
1515	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2648	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1516	aio_write $fh, 0, (length $data), $data, 0;	2649	aio_write $fh, 0, (length $data), $data, 0;
		2650	undef $fh;
		2651	aio_rename "$meta~", $meta;
1517		2652
1518	$exit->slaying ("?random/$md5");	2653	$exit->slaying ("?random/$md5");
1519	$exit->msg (undef);	2654	$exit->msg (undef);
1520	}	2655	}
1521	}	2656	}
…		…
1523	sub cf::object::player::enter_exit {	2658	sub cf::object::player::enter_exit {
1524	my ($self, $exit) = @_;	2659	my ($self, $exit) = @_;
1525		2660
1526	return unless $self->type == cf::PLAYER;	2661	return unless $self->type == cf::PLAYER;
1527		2662
		2663	if ($exit->slaying eq "/!") {
		2664	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2665	# the problem is that $exit might not survive long enough
		2666	# so it needs to be done right now, right here
		2667	cf::sync_job { prepare_random_map $exit };
		2668	}
		2669
		2670	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2671	my $hp = $exit->stats->hp;
		2672	my $sp = $exit->stats->sp;
		2673
1528	$self->enter_link;	2674	$self->enter_link;
1529		2675
		2676	# if exit is damned, update players death & WoR home-position
		2677	$self->contr->savebed ($slaying, $hp, $sp)
		2678	if $exit->flag (FLAG_DAMNED);
		2679
1530	(Coro::async {	2680	(async {
		2681	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2682
		2683	$self->deactivate_recursive; # just to be sure
1531	unless (eval {	2684	unless (eval {
1532		2685	$self->goto ($slaying, $hp, $sp);
1533	prepare_random_map $exit
1534	if $exit->slaying eq "/!";
1535
1536	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1537	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1538		2686
1539	1;	2687	1;
1540	}) {	2688	}) {
1541	$self->message ("Something went wrong deep within the crossfire server. "	2689	$self->message ("Something went wrong deep within the crossfire server. "
1542	. "I'll try to bring you back to the map you were before. "	2690	. "I'll try to bring you back to the map you were before. "
1543	. "Please report this to the dungeon master",	2691	. "Please report this to the dungeon master!",
1544	cf::NDI_UNIQUE | cf::NDI_RED);	2692	cf::NDI_UNIQUE | cf::NDI_RED);
1545		2693
1546	warn "ERROR in enter_exit: $@";	2694	warn "ERROR in enter_exit: $@";
1547	$self->leave_link;	2695	$self->leave_link;
1548	}	2696	}
1549	})->prio (1);	2697	})->prio (1);
…		…
1562		2710
1563	sub cf::client::send_drawinfo {	2711	sub cf::client::send_drawinfo {
1564	my ($self, $text, $flags) = @_;	2712	my ($self, $text, $flags) = @_;
1565		2713
1566	utf8::encode $text;	2714	utf8::encode $text;
1567	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2715	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1568	}	2716	}
1569		2717
		2718	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2719
		2720	Send a drawinfo or msg packet to the client, formatting the msg for the
		2721	client if neccessary. C<$type> should be a string identifying the type of
		2722	the message, with C<log> being the default. If C<$color> is negative, suppress
		2723	the message unless the client supports the msg packet.
		2724
		2725	=cut
		2726
		2727	# non-persistent channels (usually the info channel)
		2728	our %CHANNEL = (
		2729	"c/identify" => {
		2730	id => "infobox",
		2731	title => "Identify",
		2732	reply => undef,
		2733	tooltip => "Items recently identified",
		2734	},
		2735	"c/examine" => {
		2736	id => "infobox",
		2737	title => "Examine",
		2738	reply => undef,
		2739	tooltip => "Signs and other items you examined",
		2740	},
		2741	"c/book" => {
		2742	id => "infobox",
		2743	title => "Book",
		2744	reply => undef,
		2745	tooltip => "The contents of a note or book",
		2746	},
		2747	"c/lookat" => {
		2748	id => "infobox",
		2749	title => "Look",
		2750	reply => undef,
		2751	tooltip => "What you saw there",
		2752	},
		2753	"c/who" => {
		2754	id => "infobox",
		2755	title => "Players",
		2756	reply => undef,
		2757	tooltip => "Shows players who are currently online",
		2758	},
		2759	"c/body" => {
		2760	id => "infobox",
		2761	title => "Body Parts",
		2762	reply => undef,
		2763	tooltip => "Shows which body parts you posess and are available",
		2764	},
		2765	"c/uptime" => {
		2766	id => "infobox",
		2767	title => "Uptime",
		2768	reply => undef,
		2769	tooltip => "How long the server has been running since last restart",
		2770	},
		2771	"c/mapinfo" => {
		2772	id => "infobox",
		2773	title => "Map Info",
		2774	reply => undef,
		2775	tooltip => "Information related to the maps",
		2776	},
		2777	);
		2778
		2779	sub cf::client::send_msg {
		2780	my ($self, $channel, $msg, $color, @extra) = @_;
		2781
		2782	$msg = $self->pl->expand_cfpod ($msg);
		2783
		2784	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2785
		2786	# check predefined channels, for the benefit of C
		2787	if ($CHANNEL{$channel}) {
		2788	$channel = $CHANNEL{$channel};
		2789
		2790	$self->ext_msg (channel_info => $channel)
		2791	if $self->can_msg;
		2792
		2793	$channel = $channel->{id};
		2794
		2795	} elsif (ref $channel) {
		2796	# send meta info to client, if not yet sent
		2797	unless (exists $self->{channel}{$channel->{id}}) {
		2798	$self->{channel}{$channel->{id}} = $channel;
		2799	$self->ext_msg (channel_info => $channel)
		2800	if $self->can_msg;
		2801	}
		2802
		2803	$channel = $channel->{id};
		2804	}
		2805
		2806	return unless @extra || length $msg;
		2807
		2808	if ($self->can_msg) {
		2809	# default colour, mask it out
		2810	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2811	if $color & cf::NDI_DEF;
		2812
		2813	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2814	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2815	} else {
		2816	if ($color >= 0) {
		2817	# replace some tags by gcfclient-compatible ones
		2818	for ($msg) {
		2819	1 while
		2820	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2821	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2822	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2823	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2824	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2825	}
		2826
		2827	$color &= cf::NDI_COLOR_MASK;
		2828
		2829	utf8::encode $msg;
		2830
		2831	if (0 && $msg =~ /\[/) {
		2832	# COMMAND/INFO
		2833	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2834	} else {
		2835	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2836	$self->send_packet ("drawinfo $color $msg")
		2837	}
		2838	}
		2839	}
		2840	}
		2841
		2842	=item $client->ext_msg ($type, @msg)
		2843
		2844	Sends an ext event to the client.
		2845
		2846	=cut
		2847
		2848	sub cf::client::ext_msg($$@) {
		2849	my ($self, $type, @msg) = @_;
		2850
		2851	if ($self->extcmd == 2) {
		2852	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2853	} elsif ($self->extcmd == 1) { # TODO: remove
		2854	push @msg, msgtype => "event_$type";
		2855	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2856	}
		2857	}
		2858
		2859	=item $client->ext_reply ($msgid, @msg)
		2860
		2861	Sends an ext reply to the client.
		2862
		2863	=cut
		2864
		2865	sub cf::client::ext_reply($$@) {
		2866	my ($self, $id, @msg) = @_;
		2867
		2868	if ($self->extcmd == 2) {
		2869	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2870	} elsif ($self->extcmd == 1) {
		2871	#TODO: version 1, remove
		2872	unshift @msg, msgtype => "reply", msgid => $id;
		2873	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2874	}
		2875	}
1570		2876
1571	=item $success = $client->query ($flags, "text", \&cb)	2877	=item $success = $client->query ($flags, "text", \&cb)
1572		2878
1573	Queues a query to the client, calling the given callback with	2879	Queues a query to the client, calling the given callback with
1574	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1575	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2881	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1576		2882
1577	Queries can fail, so check the return code. Or don't, as queries will become	2883	Queries can fail, so check the return code. Or don't, as queries will
1578	reliable at some point in the future.	2884	become reliable at some point in the future.
1579		2885
1580	=cut	2886	=cut
1581		2887
1582	sub cf::client::query {	2888	sub cf::client::query {
1583	my ($self, $flags, $text, $cb) = @_;	2889	my ($self, $flags, $text, $cb) = @_;
…		…
1591	utf8::encode $text;	2897	utf8::encode $text;
1592	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1593		2899
1594	$self->send_packet ($self->{query_queue}[0][0])	2900	$self->send_packet ($self->{query_queue}[0][0])
1595	if @{ $self->{query_queue} } == 1;	2901	if @{ $self->{query_queue} } == 1;
		2902
		2903	1
1596	}	2904	}
1597		2905
1598	cf::client->attach (	2906	cf::client->attach (
		2907	on_connect => sub {
		2908	my ($ns) = @_;
		2909
		2910	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2911	},
1599	on_reply => sub {	2912	on_reply => sub {
1600	my ($ns, $msg) = @_;	2913	my ($ns, $msg) = @_;
1601		2914
1602	# this weird shuffling is so that direct followup queries	2915	# this weird shuffling is so that direct followup queries
1603	# get handled first	2916	# get handled first
1604	my $queue = delete $ns->{query_queue};	2917	my $queue = delete $ns->{query_queue}
		2918	or return; # be conservative, not sure how that can happen, but we saw a crash here
1605		2919
1606	(shift @$queue)->[1]->($msg);	2920	(shift @$queue)->[1]->($msg);
		2921	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1607		2922
1608	push @{ $ns->{query_queue} }, @$queue;	2923	push @{ $ns->{query_queue} }, @$queue;
1609		2924
1610	if (@{ $ns->{query_queue} } == @$queue) {	2925	if (@{ $ns->{query_queue} } == @$queue) {
1611	if (@$queue) {	2926	if (@$queue) {
…		…
1613	} else {	2928	} else {
1614	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2929	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1615	}	2930	}
1616	}	2931	}
1617	},	2932	},
		2933	on_exticmd => sub {
		2934	my ($ns, $buf) = @_;
		2935
		2936	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2937
		2938	if (ref $msg) {
		2939	my ($type, $reply, @payload) =
		2940	"ARRAY" eq ref $msg
		2941	? @$msg
		2942	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2943
		2944	my @reply;
		2945
		2946	if (my $cb = $EXTICMD{$type}) {
		2947	@reply = $cb->($ns, @payload);
		2948	}
		2949
		2950	$ns->ext_reply ($reply, @reply)
		2951	if $reply;
		2952
		2953	} else {
		2954	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2955	}
		2956
		2957	cf::override;
		2958	},
1618	);	2959	);
1619		2960
1620	=item $client->coro (\&cb)	2961	=item $client->async (\&cb)
1621		2962
1622	Create a new coroutine, running the specified callback. The coroutine will	2963	Create a new coroutine, running the specified callback. The coroutine will
1623	be automatically cancelled when the client gets destroyed (e.g. on logout,	2964	be automatically cancelled when the client gets destroyed (e.g. on logout,
1624	or loss of connection).	2965	or loss of connection).
1625		2966
1626	=cut	2967	=cut
1627		2968
1628	sub cf::client::coro {	2969	sub cf::client::async {
1629	my ($self, $cb) = @_;	2970	my ($self, $cb) = @_;
1630		2971
1631	my $coro; $coro = async {	2972	my $coro = &Coro::async ($cb);
1632	eval {
1633	$cb->();
1634	};
1635	warn $@ if $@;
1636	};
1637		2973
1638	$coro->on_destroy (sub {	2974	$coro->on_destroy (sub {
1639	delete $self->{_coro}{$coro+0};	2975	delete $self->{_coro}{$coro+0};
1640	});	2976	});
1641		2977
…		…
1668	our $safe = new Safe "safe";	3004	our $safe = new Safe "safe";
1669	our $safe_hole = new Safe::Hole;	3005	our $safe_hole = new Safe::Hole;
1670		3006
1671	$SIG{FPE} = 'IGNORE';	3007	$SIG{FPE} = 'IGNORE';
1672		3008
1673	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3009	$safe->permit_only (Opcode::opset qw(
		3010	:base_core :base_mem :base_orig :base_math
		3011	grepstart grepwhile mapstart mapwhile
		3012	sort time
		3013	));
1674		3014
1675	# here we export the classes and methods available to script code	3015	# here we export the classes and methods available to script code
1676		3016
1677	=pod	3017	=pod
1678		3018
1679	The following fucntions and emthods are available within a safe environment:	3019	The following functions and methods are available within a safe environment:
1680		3020
1681	cf::object contr pay_amount pay_player map	3021	cf::object
		3022	contr pay_amount pay_player map x y force_find force_add destroy
		3023	insert remove name archname title slaying race decrease_ob_nr
		3024
1682	cf::object::player player	3025	cf::object::player
1683	cf::player peaceful	3026	player
1684	cf::map trigger	3027
		3028	cf::player
		3029	peaceful
		3030
		3031	cf::map
		3032	trigger
1685		3033
1686	=cut	3034	=cut
1687		3035
1688	for (	3036	for (
1689	["cf::object" => qw(contr pay_amount pay_player map)],	3037	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3038	insert remove inv name archname title slaying race
		3039	decrease_ob_nr destroy)],
1690	["cf::object::player" => qw(player)],	3040	["cf::object::player" => qw(player)],
1691	["cf::player" => qw(peaceful)],	3041	["cf::player" => qw(peaceful)],
1692	["cf::map" => qw(trigger)],	3042	["cf::map" => qw(trigger)],
1693	) {	3043	) {
1694	no strict 'refs';	3044	no strict 'refs';
…		…
1765	=back	3115	=back
1766		3116
1767	=cut	3117	=cut
1768		3118
1769	#############################################################################	3119	#############################################################################
		3120	# the server's init and main functions
1770		3121
1771	=head2 EXTENSION DATABASE SUPPORT	3122	sub load_facedata($) {
		3123	my ($path) = @_;
1772		3124
1773	Crossfire maintains a very simple database for extension use. It can	3125	# HACK to clear player env face cache, we need some signal framework
1774	currently store anything that can be serialised using Storable, which	3126	# for this (global event?)
1775	excludes objects.	3127	%ext::player_env::MUSIC_FACE_CACHE = ();
1776		3128
1777	The parameter C<$family> should best start with the name of the extension	3129	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1778	using it, it should be unique.
1779		3130
1780	=over 4	3131	warn "loading facedata from $path\n";
1781		3132
1782	=item $hashref = cf::db_get $family	3133	my $facedata;
		3134	0 < aio_load $path, $facedata
		3135	or die "$path: $!";
1783		3136
1784	Return a hashref for use by the extension C<$family>, which can be	3137	$facedata = Coro::Storable::thaw $facedata;
1785	modified. After modifications, you have to call C<cf::db_dirty> or
1786	C<cf::db_sync>.
1787		3138
1788	=item $value = cf::db_get $family => $key	3139	$facedata->{version} == 2
		3140	or cf::cleanup "$path: version mismatch, cannot proceed.";
1789		3141
1790	Returns a single value from the database	3142	# patch in the exptable
1791		3143	$facedata->{resource}{"res/exp_table"} = {
1792	=item cf::db_put $family => $hashref	3144	type => FT_RSRC,
1793		3145	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1794	Stores the given family hashref into the database. Updates are delayed, if
1795	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1796
1797	=item cf::db_put $family => $key => $value
1798
1799	Stores the given C<$value> in the family hash. Updates are delayed, if you
1800	want the data to be synced to disk immediately, use C<cf::db_sync>.
1801
1802	=item cf::db_dirty
1803
1804	Marks the database as dirty, to be updated at a later time.
1805
1806	=item cf::db_sync
1807
1808	Immediately write the database to disk I<if it is dirty>.
1809
1810	=cut
1811
1812	our $DB;
1813
1814	{
1815	my $path = cf::localdir . "/database.pst";
1816
1817	sub db_load() {
1818	warn "loading database $path\n";#d# remove later
1819	$DB = stat $path ? Storable::retrieve $path : { };
1820	}
1821
1822	my $pid;
1823
1824	sub db_save() {
1825	warn "saving database $path\n";#d# remove later
1826	waitpid $pid, 0 if $pid;
1827	if (0 == ($pid = fork)) {
1828	$DB->{_meta}{version} = 1;
1829	Storable::nstore $DB, "$path~";
1830	rename "$path~", $path;
1831	cf::_exit 0 if defined $pid;
1832	}
1833	}
1834
1835	my $dirty;
1836
1837	sub db_sync() {
1838	db_save if $dirty;
1839	undef $dirty;
1840	}
1841
1842	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1843	db_sync;
1844	});	3146	};
		3147	cf::cede_to_tick;
1845		3148
1846	sub db_dirty() {
1847	$dirty = 1;
1848	$idle->start;
1849	}	3149	{
		3150	my $faces = $facedata->{faceinfo};
1850		3151
1851	sub db_get($;$) {	3152	while (my ($face, $info) = each %$faces) {
1852	@_ >= 2	3153	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1853	? $DB->{$_[0]}{$_[1]}	3154	cf::face::set_visibility $idx, $info->{visibility};
1854	: ($DB->{$_[0]} ||= { })	3155	cf::face::set_magicmap $idx, $info->{magicmap};
1855	}	3156	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3157	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1856		3158
1857	sub db_put($$;$) {	3159	cf::cede_to_tick;
1858	if (@_ >= 3) {
1859	$DB->{$_[0]}{$_[1]} = $_[2];
1860	} else {
1861	$DB->{$_[0]} = $_[1];
1862	}
1863	db_dirty;
1864	}
1865
1866	cf::global->attach (
1867	prio => 10000,
1868	on_cleanup => sub {
1869	db_sync;
1870	},	3160	}
1871	);
1872	}
1873		3161
1874	#############################################################################	3162	while (my ($face, $info) = each %$faces) {
1875	# the server's main()	3163	next unless $info->{smooth};
		3164	my $idx = cf::face::find $face
		3165	or next;
		3166	if (my $smooth = cf::face::find $info->{smooth}) {
		3167	cf::face::set_smooth $idx, $smooth;
		3168	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3169	} else {
		3170	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3171	}
1876		3172
1877	sub cfg_load {	3173	cf::cede_to_tick;
		3174	}
		3175	}
		3176
		3177	{
		3178	my $anims = $facedata->{animinfo};
		3179
		3180	while (my ($anim, $info) = each %$anims) {
		3181	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3182	cf::cede_to_tick;
		3183	}
		3184
		3185	cf::anim::invalidate_all; # d'oh
		3186	}
		3187
		3188	{
		3189	# TODO: for gcfclient pleasure, we should give resources
		3190	# that gcfclient doesn't grok a >10000 face index.
		3191	my $res = $facedata->{resource};
		3192
		3193	my $soundconf = delete $res->{"res/sound.conf"};
		3194
		3195	while (my ($name, $info) = each %$res) {
		3196	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3197	my $data;
		3198
		3199	if ($info->{type} & 1) {
		3200	# prepend meta info
		3201
		3202	my $meta = $enc->encode ({
		3203	name => $name,
		3204	%{ $info->{meta} || {} },
		3205	});
		3206
		3207	$data = pack "(w/a*)*", $meta, $info->{data};
		3208	} else {
		3209	$data = $info->{data};
		3210	}
		3211
		3212	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3213	cf::face::set_type $idx, $info->{type};
		3214
		3215	cf::cede_to_tick;
		3216	}
		3217
		3218	if ($soundconf) {
		3219	$soundconf = $enc->decode (delete $soundconf->{data});
		3220
		3221	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3222	my $sound = $soundconf->{compat}[$_]
		3223	or next;
		3224
		3225	my $face = cf::face::find "sound/$sound->[1]";
		3226	cf::sound::set $sound->[0] => $face;
		3227	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3228	}
		3229
		3230	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3231	my $face = cf::face::find "sound/$v";
		3232	cf::sound::set $k => $face;
		3233	}
		3234	}
		3235	}
		3236
		3237	1
		3238	}
		3239
		3240	register_exticmd fx_want => sub {
		3241	my ($ns, $want) = @_;
		3242
		3243	while (my ($k, $v) = each %$want) {
		3244	$ns->fx_want ($k, $v);
		3245	}
		3246	};
		3247
		3248	sub reload_regions {
		3249	# HACK to clear player env face cache, we need some signal framework
		3250	# for this (global event?)
		3251	%ext::player_env::MUSIC_FACE_CACHE = ();
		3252
		3253	load_resource_file "$MAPDIR/regions"
		3254	or die "unable to load regions file\n";
		3255
		3256	for (cf::region::list) {
		3257	$_->{match} = qr/$_->{match}/
		3258	if exists $_->{match};
		3259	}
		3260	}
		3261
		3262	sub reload_facedata {
		3263	load_facedata "$DATADIR/facedata"
		3264	or die "unable to load facedata\n";
		3265	}
		3266
		3267	sub reload_archetypes {
		3268	load_resource_file "$DATADIR/archetypes"
		3269	or die "unable to load archetypes\n";
		3270	#d# NEED to laod twice to resolve forward references
		3271	# this really needs to be done in an extra post-pass
		3272	# (which needs to be synchronous, so solve it differently)
		3273	load_resource_file "$DATADIR/archetypes"
		3274	or die "unable to load archetypes\n";
		3275	}
		3276
		3277	sub reload_treasures {
		3278	load_resource_file "$DATADIR/treasures"
		3279	or die "unable to load treasurelists\n";
		3280	}
		3281
		3282	sub reload_resources {
		3283	warn "reloading resource files...\n";
		3284
		3285	reload_regions;
		3286	reload_facedata;
		3287	#reload_archetypes;#d#
		3288	reload_archetypes;
		3289	reload_treasures;
		3290
		3291	warn "finished reloading resource files\n";
		3292	}
		3293
		3294	sub init {
		3295	reload_resources;
		3296	}
		3297
		3298	sub reload_config {
1878	open my $fh, "<:utf8", cf::confdir . "/config"	3299	open my $fh, "<:utf8", "$CONFDIR/config"
1879	or return;	3300	or return;
1880		3301
1881	local $/;	3302	local $/;
1882	*CFG = YAML::Syck::Load <$fh>;	3303	*CFG = YAML::Syck::Load <$fh>;
		3304
		3305	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3306
		3307	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3308	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3309
		3310	if (exists $CFG{mlockall}) {
		3311	eval {
		3312	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3313	and die "WARNING: m(un)lockall failed: $!\n";
		3314	};
		3315	warn $@ if $@;
		3316	}
1883	}	3317	}
1884		3318
1885	sub main {	3319	sub main {
1886	# we must not ever block the main coroutine	3320	# we must not ever block the main coroutine
1887	local $Coro::idle = sub {	3321	local $Coro::idle = sub {
1888	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3322	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1889	(Coro::unblock_sub {	3323	(async {
1890	Event::one_event;	3324	$Coro::current->{desc} = "IDLE BUG HANDLER";
1891	})->();	3325	EV::loop EV::LOOP_ONESHOT;
		3326	})->prio (Coro::PRIO_MAX);
1892	};	3327	};
1893		3328
1894	cfg_load;	3329	reload_config;
1895	db_load;	3330	db_init;
1896	load_extensions;	3331	load_extensions;
		3332
		3333	$TICK_WATCHER->start;
		3334	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
1897	Event::loop;	3335	EV::loop;
1898	}	3336	}
1899		3337
1900	#############################################################################	3338	#############################################################################
1901	# initialisation	3339	# initialisation and cleanup
1902		3340
		3341	# install some emergency cleanup handlers
		3342	BEGIN {
		3343	our %SIGWATCHER = ();
		3344	for my $signal (qw(INT HUP TERM)) {
		3345	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3346	cf::cleanup "SIG$signal";
		3347	};
		3348	}
		3349	}
		3350
		3351	sub write_runtime {
		3352	my $runtime = "$LOCALDIR/runtime";
		3353
		3354	# first touch the runtime file to show we are still running:
		3355	# the fsync below can take a very very long time.
		3356
		3357	IO::AIO::aio_utime $runtime, undef, undef;
		3358
		3359	my $guard = cf::lock_acquire "write_runtime";
		3360
		3361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3362	or return;
		3363
		3364	my $value = $cf::RUNTIME + 90 + 10;
		3365	# 10 is the runtime save interval, for a monotonic clock
		3366	# 60 allows for the watchdog to kill the server.
		3367
		3368	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3369	and return;
		3370
		3371	# always fsync - this file is important
		3372	aio_fsync $fh
		3373	and return;
		3374
		3375	# touch it again to show we are up-to-date
		3376	aio_utime $fh, undef, undef;
		3377
		3378	close $fh
		3379	or return;
		3380
		3381	aio_rename "$runtime~", $runtime
		3382	and return;
		3383
		3384	warn "runtime file written.\n";
		3385
		3386	1
		3387	}
		3388
		3389	sub emergency_save() {
		3390	my $freeze_guard = cf::freeze_mainloop;
		3391
		3392	warn "enter emergency perl save\n";
		3393
		3394	cf::sync_job {
		3395	# use a peculiar iteration method to avoid tripping on perl
		3396	# refcount bugs in for. also avoids problems with players
		3397	# and maps saved/destroyed asynchronously.
		3398	warn "begin emergency player save\n";
		3399	for my $login (keys %cf::PLAYER) {
		3400	my $pl = $cf::PLAYER{$login} or next;
		3401	$pl->valid or next;
		3402	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3403	$pl->save;
		3404	}
		3405	warn "end emergency player save\n";
		3406
		3407	warn "begin emergency map save\n";
		3408	for my $path (keys %cf::MAP) {
		3409	my $map = $cf::MAP{$path} or next;
		3410	$map->valid or next;
		3411	$map->save;
		3412	}
		3413	warn "end emergency map save\n";
		3414
		3415	warn "begin emergency database checkpoint\n";
		3416	BDB::db_env_txn_checkpoint $DB_ENV;
		3417	warn "end emergency database checkpoint\n";
		3418	};
		3419
		3420	warn "leave emergency perl save\n";
		3421	}
		3422
		3423	sub post_cleanup {
		3424	my ($make_core) = @_;
		3425
		3426	warn Carp::longmess "post_cleanup backtrace"
		3427	if $make_core;
		3428	}
		3429
1903	sub reload() {	3430	sub do_reload_perl() {
1904	# can/must only be called in main	3431	# can/must only be called in main
1905	if ($Coro::current != $Coro::main) {	3432	if ($Coro::current != $Coro::main) {
1906	warn "can only reload from main coroutine\n";	3433	warn "can only reload from main coroutine";
1907	return;	3434	return;
1908	}	3435	}
1909		3436
1910	warn "reloading...";	3437	warn "reloading...";
1911		3438
1912	local $FREEZE = 1;	3439	warn "entering sync_job";
		3440
		3441	cf::sync_job {
		3442	cf::write_runtime; # external watchdog should not bark
1913	cf::emergency_save;	3443	cf::emergency_save;
		3444	cf::write_runtime; # external watchdog should not bark
1914		3445
1915	eval {	3446	warn "syncing database to disk";
		3447	BDB::db_env_txn_checkpoint $DB_ENV;
		3448
1916	# if anything goes wrong in here, we should simply crash as we already saved	3449	# if anything goes wrong in here, we should simply crash as we already saved
1917		3450
1918	# cancel all watchers	3451	warn "flushing outstanding aio requests";
1919	for (Event::all_watchers) {	3452	for (;;) {
1920	$_->cancel if $_->data & WF_AUTOCANCEL;	3453	BDB::flush;
		3454	IO::AIO::flush;
		3455	Coro::cede_notself;
		3456	last unless IO::AIO::nreqs || BDB::nreqs;
		3457	warn "iterate...";
1921	}	3458	}
1922		3459
		3460	++$RELOAD;
		3461
1923	# cancel all extension coros	3462	warn "cancelling all extension coros";
1924	$_->cancel for values %EXT_CORO;	3463	$_->cancel for values %EXT_CORO;
1925	%EXT_CORO = ();	3464	%EXT_CORO = ();
1926		3465
1927	# unload all extensions	3466	warn "removing commands";
1928	for (@exts) {	3467	%COMMAND = ();
		3468
		3469	warn "removing ext/exti commands";
		3470	%EXTCMD = ();
		3471	%EXTICMD = ();
		3472
		3473	warn "unloading/nuking all extensions";
		3474	for my $pkg (@EXTS) {
1929	warn "unloading <$_>";	3475	warn "... unloading $pkg";
1930	unload_extension $_;	3476
		3477	if (my $cb = $pkg->can ("unload")) {
		3478	eval {
		3479	$cb->($pkg);
		3480	1
		3481	} or warn "$pkg unloaded, but with errors: $@";
1931	}	3482	}
1932		3483
		3484	warn "... nuking $pkg";
		3485	Symbol::delete_package $pkg;
		3486	}
		3487
1933	# unload all modules loaded from $LIBDIR	3488	warn "unloading all perl modules loaded from $LIBDIR";
1934	while (my ($k, $v) = each %INC) {	3489	while (my ($k, $v) = each %INC) {
1935	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3490	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1936		3491
1937	warn "removing <$k>";	3492	warn "... unloading $k";
1938	delete $INC{$k};	3493	delete $INC{$k};
1939		3494
1940	$k =~ s/\.pm$//;	3495	$k =~ s/\.pm$//;
1941	$k =~ s/\//::/g;	3496	$k =~ s/\//::/g;
1942		3497
…		…
1945	}	3500	}
1946		3501
1947	Symbol::delete_package $k;	3502	Symbol::delete_package $k;
1948	}	3503	}
1949		3504
1950	# sync database to disk
1951	cf::db_sync;
1952	IO::AIO::flush;
1953
1954	# get rid of safe::, as good as possible	3505	warn "getting rid of safe::, as good as possible";
1955	Symbol::delete_package "safe::$_"	3506	Symbol::delete_package "safe::$_"
1956	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3507	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1957		3508
1958	# remove register_script_function callbacks
1959	# TODO
1960
1961	# unload cf.pm "a bit"	3509	warn "unloading cf.pm \"a bit\"";
1962	delete $INC{"cf.pm"};	3510	delete $INC{"cf.pm"};
		3511	delete $INC{"cf/pod.pm"};
1963		3512
1964	# don't, removes xs symbols, too,	3513	# don't, removes xs symbols, too,
1965	# and global variables created in xs	3514	# and global variables created in xs
1966	#Symbol::delete_package __PACKAGE__;	3515	#Symbol::delete_package __PACKAGE__;
1967		3516
1968	# reload cf.pm	3517	warn "unload completed, starting to reload now";
		3518
1969	warn "reloading cf.pm";	3519	warn "reloading cf.pm";
1970	require cf;	3520	require cf;
1971	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3521	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1972		3522
1973	# load config and database again	3523	warn "loading config and database again";
1974	cf::cfg_load;	3524	cf::reload_config;
1975	cf::db_load;
1976		3525
1977	# load extensions
1978	warn "load extensions";	3526	warn "loading extensions";
1979	cf::load_extensions;	3527	cf::load_extensions;
1980		3528
1981	# reattach attachments to objects	3529	warn "reattaching attachments to objects/players";
1982	warn "reattach";	3530	_global_reattach; # objects, sockets
1983	_global_reattach;	3531	warn "reattaching attachments to maps";
1984	};	3532	reattach $_ for values %MAP;
		3533	warn "reattaching attachments to players";
		3534	reattach $_ for values %PLAYER;
1985		3535
1986	if ($@) {	3536	warn "leaving sync_job";
		3537
		3538	1
		3539	} or do {
1987	warn $@;	3540	warn $@;
1988	warn "error while reloading, exiting.";	3541	warn "error while reloading, exiting.";
1989	exit 1;	3542	exit 1;
1990	}	3543	};
1991		3544
1992	warn "reloaded successfully";	3545	warn "reloaded";
1993	};	3546	};
1994		3547
1995	#############################################################################	3548	our $RELOAD_WATCHER; # used only during reload
1996		3549
1997	unless ($LINK_MAP) {	3550	sub reload_perl() {
1998	$LINK_MAP = cf::map::new;	3551	# doing reload synchronously and two reloads happen back-to-back,
		3552	# coro crashes during coro_state_free->destroy here.
1999		3553
2000	$LINK_MAP->width (41);	3554	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2001	$LINK_MAP->height (41);	3555	undef $RELOAD_WATCHER;
2002	$LINK_MAP->alloc;	3556	do_reload_perl;
2003	$LINK_MAP->path ("{link}");	3557	};
2004	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2005	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2006
2007	# dirty hack because... archetypes are not yet loaded
2008	Event->timer (
2009	after => 2,
2010	cb => sub {
2011	$_[0]->w->cancel;
2012
2013	# provide some exits "home"
2014	my $exit = cf::object::new "exit";
2015
2016	$exit->slaying ($EMERGENCY_POSITION->[0]);
2017	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2018	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2019
2020	$LINK_MAP->insert ($exit->clone, 19, 19);
2021	$LINK_MAP->insert ($exit->clone, 19, 20);
2022	$LINK_MAP->insert ($exit->clone, 19, 21);
2023	$LINK_MAP->insert ($exit->clone, 20, 19);
2024	$LINK_MAP->insert ($exit->clone, 20, 21);
2025	$LINK_MAP->insert ($exit->clone, 21, 19);
2026	$LINK_MAP->insert ($exit->clone, 21, 20);
2027	$LINK_MAP->insert ($exit->clone, 21, 21);
2028
2029	$exit->destroy;
2030	});
2031
2032	$LINK_MAP->{deny_save} = 1;
2033	$LINK_MAP->{deny_reset} = 1;
2034
2035	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2036	}	3558	}
2037
2038	register "<global>", __PACKAGE__;
2039		3559
2040	register_command "reload" => sub {	3560	register_command "reload" => sub {
2041	my ($who, $arg) = @_;	3561	my ($who, $arg) = @_;
2042		3562
2043	if ($who->flag (FLAG_WIZ)) {	3563	if ($who->flag (FLAG_WIZ)) {
2044	$who->message ("start of reload.");
2045	reload;
2046	$who->message ("end of reload.");	3564	$who->message ("reloading server.");
		3565	async {
		3566	$Coro::current->{desc} = "perl_reload";
		3567	reload_perl;
		3568	};
2047	}	3569	}
2048	};	3570	};
2049		3571
2050	unshift @INC, $LIBDIR;	3572	unshift @INC, $LIBDIR;
2051		3573
2052	$TICK_WATCHER = Event->timer (	3574	my $bug_warning = 0;
2053	reentrant => 0,	3575
2054	prio => 0,	3576	our @WAIT_FOR_TICK;
2055	at => $NEXT_TICK || $TICK,	3577	our @WAIT_FOR_TICK_BEGIN;
2056	data => WF_AUTOCANCEL,	3578
2057	cb => sub {	3579	sub wait_for_tick {
2058	unless ($FREEZE) {	3580	return unless $TICK_WATCHER->is_active;
		3581	return if $Coro::current == $Coro::main;
		3582
		3583	my $signal = new Coro::Signal;
		3584	push @WAIT_FOR_TICK, $signal;
		3585	$signal->wait;
		3586	}
		3587
		3588	sub wait_for_tick_begin {
		3589	return unless $TICK_WATCHER->is_active;
		3590	return if $Coro::current == $Coro::main;
		3591
		3592	my $signal = new Coro::Signal;
		3593	push @WAIT_FOR_TICK_BEGIN, $signal;
		3594	$signal->wait;
		3595	}
		3596
		3597	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3598	if ($Coro::current != $Coro::main) {
		3599	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3600	unless ++$bug_warning > 10;
		3601	return;
		3602	}
		3603
		3604	$NOW = $tick_start = EV::now;
		3605
2059	cf::server_tick; # one server iteration	3606	cf::server_tick; # one server iteration
		3607
2060	$RUNTIME += $TICK;	3608	$RUNTIME += $TICK;
2061	}
2062
2063	$NEXT_TICK += $TICK;	3609	$NEXT_TICK += $TICK;
2064		3610
2065	# if we are delayed by four ticks or more, skip them all	3611	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2066	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3612	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2067		3613	Coro::async_pool {
2068	$TICK_WATCHER->at ($NEXT_TICK);	3614	$Coro::current->{desc} = "runtime saver";
2069	$TICK_WATCHER->start;
2070	},
2071	);
2072
2073	IO::AIO::max_poll_time $TICK * 0.2;
2074
2075	Event->io (
2076	fd => IO::AIO::poll_fileno,
2077	poll => 'r',
2078	prio => 5,
2079	data => WF_AUTOCANCEL,
2080	cb => \&IO::AIO::poll_cb,
2081	);
2082
2083	Event->timer (
2084	data => WF_AUTOCANCEL,
2085	after => 0,
2086	interval => 10,
2087	cb => sub {
2088	(Coro::unblock_sub {
2089	write_runtime	3615	write_runtime
2090	or warn "ERROR: unable to write runtime file: $!";	3616	or warn "ERROR: unable to write runtime file: $!";
2091	})->();	3617	};
2092	},	3618	}
2093	);	3619
		3620	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3621	$sig->send;
		3622	}
		3623	while (my $sig = shift @WAIT_FOR_TICK) {
		3624	$sig->send;
		3625	}
		3626
		3627	$LOAD = ($NOW - $tick_start) / $TICK;
		3628	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3629
		3630	_post_tick;
		3631	};
		3632	$TICK_WATCHER->priority (EV::MAXPRI);
		3633
		3634	{
		3635	# configure BDB
		3636
		3637	BDB::min_parallel 8;
		3638	BDB::max_poll_reqs $TICK * 0.1;
		3639	$Coro::BDB::WATCHER->priority (1);
		3640
		3641	unless ($DB_ENV) {
		3642	$DB_ENV = BDB::db_env_create;
		3643	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3644	| BDB::LOG_AUTOREMOVE, 1);
		3645	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3646	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3647
		3648	cf::sync_job {
		3649	eval {
		3650	BDB::db_env_open
		3651	$DB_ENV,
		3652	$BDBDIR,
		3653	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3654	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3655	0666;
		3656
		3657	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3658	};
		3659
		3660	cf::cleanup "db_env_open(db): $@" if $@;
		3661	};
		3662	}
		3663
		3664	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3665	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3666	};
		3667	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3668	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3669	};
		3670	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3671	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3672	};
		3673	}
		3674
		3675	{
		3676	# configure IO::AIO
		3677
		3678	IO::AIO::min_parallel 8;
		3679	IO::AIO::max_poll_time $TICK * 0.1;
		3680	$Coro::AIO::WATCHER->priority (1);
		3681	}
		3682
		3683	my $_log_backtrace;
		3684
		3685	sub _log_backtrace {
		3686	my ($msg, @addr) = @_;
		3687
		3688	$msg =~ s/\n//;
		3689
		3690	# limit the # of concurrent backtraces
		3691	if ($_log_backtrace < 2) {
		3692	++$_log_backtrace;
		3693	async {
		3694	$Coro::current->{desc} = "abt $msg";
		3695
		3696	my @bt = fork_call {
		3697	@addr = map { sprintf "%x", $_ } @addr;
		3698	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3699	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3700	or die "addr2line: $!";
		3701
		3702	my @funcs;
		3703	my @res = <$fh>;
		3704	chomp for @res;
		3705	while (@res) {
		3706	my ($func, $line) = splice @res, 0, 2, ();
		3707	push @funcs, "[$func] $line";
		3708	}
		3709
		3710	@funcs
		3711	};
		3712
		3713	LOG llevInfo, "[ABT] $msg\n";
		3714	LOG llevInfo, "[ABT] $_\n" for @bt;
		3715	--$_log_backtrace;
		3716	};
		3717	} else {
		3718	LOG llevInfo, "[ABT] $msg\n";
		3719	LOG llevInfo, "[ABT] [suppressed]\n";
		3720	}
		3721	}
		3722
		3723	# load additional modules
		3724	use cf::pod;
		3725
		3726	END { cf::emergency_save }
2094		3727
2095	1	3728	1
2096		3729

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