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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.136 by root, Fri Jan 5 01:06:28 2007 UTC vs.
Revision 1.404 by root, Mon Dec 17 07:27:58 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 1.86;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
		28	use BDB ();
		29	use Data::Dumper;
20	use Digest::MD5;	30	use Digest::MD5;
21	use Fcntl;	31	use Fcntl;
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 $RANDOM_MAPS = cf::localdir . "/random";	96	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	97
		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 $tick_start; # for load detecting purposes
56		104
57	binmode STDOUT;	105	binmode STDOUT;
58	binmode STDERR;	106	binmode STDERR;
59		107
60	# read virtual server time, if available	108	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
65	}	113	}
66		114
67	mkdir cf::localdir;	115	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		117
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
		119
		120	sub cf::map::normalise;
76		121
77	#############################################################################	122	#############################################################################
78		123
79	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
80		125
…		…
87	=item $cf::RUNTIME	132	=item $cf::RUNTIME
88		133
89	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
90	every server tick.	135	every server tick.
91		136
92	=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
93		140
94	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		145
97	=item $cf::NOW	146	=item $cf::NOW
98		147
99	The time of the last (current) server tick.	148	The time of the last (current) server tick.
100		149
101	=item $cf::TICK	150	=item $cf::TICK
102		151
103	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
104		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
105	=item %cf::CFG	164	=item %cf::CFG
106		165
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	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.
109		180
110	=back	181	=back
111		182
112	=cut	183	=cut
113		184
114	BEGIN {	185	BEGIN {
115	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	187	my $msg = join "", @_;
117	utf8::encode $msg;
118		188
119	$msg .= "\n"	189	$msg .= "\n"
120	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
121		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		193
122	LOG llevError, "cfperl: $msg";	194	LOG llevError, $msg;
123	};	195	};
124	}	196	}
125		197
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		205
133	# 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
134	# within the Safe compartment.	207	# within the Safe compartment.
135	for my $pkg (qw(	208	for my $pkg (qw(
136	cf::global cf::attachable	209	cf::global cf::attachable
…		…
141	)) {	214	)) {
142	no strict 'refs';	215	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	216	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	217	}
145		218
146	$Event::DIED = sub {	219	$EV::DIED = sub {
147	warn "error in event callback: @_";	220	warn "error in event callback: @_";
148	};	221	};
149		222
150	my %ext_pkg;	223	#############################################################################
151	my @exts;
152	my @hook;
153		224
154	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
155		226
156	=over 4	227	=over 4
157		228
158	=cut	229	=item dumpval $ref
159		230
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	231	=cut
161		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
162	=item $ref = cf::from_json $json	252	=item $ref = cf::decode_json $json
163		253
164	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
165		255
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	256	=item $json = cf::encode_json $ref
174		257
175	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
176		259
177	=cut	260	=cut
178		261
179	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
181	JSON::Syck::Dump $_[0]	264	sub encode_json($) { $json_coder->encode ($_[0]) }
182	}	265	sub decode_json($) { $json_coder->decode ($_[0]) }
183		266
184	=item cf::lock_wait $string	267	=item cf::lock_wait $string
185		268
186	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
187		270
…		…
190	Wait until the given lock is available and then acquires it and returns	273	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
193	returned.	276	returned.
194		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
195	Lock names should begin with a unique identifier (for example, cf::map::find	281	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
197		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
198	=cut	288	=cut
199		289
200	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
201		292
202	sub lock_wait($) {	293	sub lock_wait($) {
203	my ($key) = @_;	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#
204		300
205	# wait for lock, if any	301	# wait for lock, if any
206	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	304	Coro::schedule;
…		…
214		310
215	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
216	lock_wait $key;	312	lock_wait $key;
217		313
218	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
219		316
220	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
223	}	321	}
224	}	322	}
225		323
226	=item cf::async { BLOCK }	324	sub lock_active($) {
227
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229	error instead of exiting the server in case of a problem.
230
231	=cut
232
233	sub async(&) {
234	my ($cb) = @_;	325	my ($key) = @_;
235		326
236	Coro::async {	327	! ! $LOCK{$key}
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}	328	}
241		329
242	sub freeze_mainloop {	330	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
244		332
245	my $guard = Coro::guard { $TICK_WATCHER->start };	333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
246	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
247	$guard	337	$guard
248	}	338	}
249		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	$sig->wait;
		411	}
		412
		413	=item cf::async { BLOCK }
		414
		415	Currently the same as Coro::async_pool, meaning you cannot use
		416	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		417	thing you are allowed to do is call C<prio> on it.
		418
		419	=cut
		420
		421	BEGIN { *async = \&Coro::async_pool }
		422
250	=item cf::sync_job { BLOCK }	423	=item cf::sync_job { BLOCK }
251		424
252	The design of crossfire+ requires that the main coro ($Coro::main) is	425	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	426	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	427	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		428	acceptable.
255		429
256	If it must be done, put the blocking parts into C<sync_job>. This will run	430	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	431	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	432	server will be frozen during this time, so the block should either finish
259	fast or be very important.	433	fast or be very important.
…		…
262		436
263	sub sync_job(&) {	437	sub sync_job(&) {
264	my ($job) = @_;	438	my ($job) = @_;
265		439
266	if ($Coro::current == $Coro::main) {	440	if ($Coro::current == $Coro::main) {
		441	my $time = EV::time;
		442
267	# this is the main coro, too bad, we have to block	443	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	444	# till the operation succeeds, freezing the server :/
269		445
		446	LOG llevError, Carp::longmess "sync job";#d#
		447
270	# TODO: use suspend/resume instead	448	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	449	# (but this is cancel-safe)
272	my $freeze_guard = freeze_mainloop;	450	my $freeze_guard = freeze_mainloop;
273		451
274	my $busy = 1;	452	my $busy = 1;
275	my @res;	453	my @res;
276		454
277	(Coro::async {	455	(async {
		456	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	457	@res = eval { $job->() };
279	warn $@ if $@;	458	warn $@ if $@;
280	undef $busy;	459	undef $busy;
281	})->prio (Coro::PRIO_MAX);	460	})->prio (Coro::PRIO_MAX);
282		461
283	while ($busy) {	462	while ($busy) {
		463	if (Coro::nready) {
284	Coro::cede_notself;	464	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	465	} else {
		466	EV::loop EV::LOOP_ONESHOT;
286	}	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
287		476
288	wantarray ? @res : $res[0]	477	wantarray ? @res : $res[0]
289	} else {	478	} else {
290	# we are in another coroutine, how wonderful, everything just works	479	# we are in another coroutine, how wonderful, everything just works
291		480
292	$job->()	481	$job->()
293	}	482	}
294	}	483	}
295		484
296	=item $coro = cf::coro { BLOCK }	485	=item $coro = cf::async_ext { BLOCK }
297		486
298	Creates and returns a new coro. This coro is automcatially being canceled	487	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	488	extension calling this is being unloaded.
300		489
301	=cut	490	=cut
302		491
303	sub coro(&) {	492	sub async_ext(&) {
304	my $cb = shift;	493	my $cb = shift;
305		494
306	my $coro = &cf::async ($cb);	495	my $coro = &Coro::async ($cb);
307		496
308	$coro->on_destroy (sub {	497	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	498	delete $EXT_CORO{$coro+0};
310	});	499	});
311	$EXT_CORO{$coro+0} = $coro;	500	$EXT_CORO{$coro+0} = $coro;
312		501
313	$coro	502	$coro
314	}	503	}
315		504
316	sub write_runtime {	505	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		506
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	507	Executes the given code block with the given arguments in a seperate
320	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.
321		511
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	512	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		513
326	aio_fsync $fh	514	sub fork_call(&@) {
327	and return;	515	my ($cb, @args) = @_;
328		516
329	close $fh	517	# we seemingly have to make a local copy of the whole thing,
330	or return;	518	# otherwise perl prematurely frees the stuff :/
		519	# TODO: investigate and fix (likely this will be rather laborious)
331		520
332	aio_rename "$runtime~", $runtime	521	my @res = Coro::Util::fork_eval {
333	and return;	522	reset_signals;
		523	&$cb
		524	}, @args;
334		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($$) {
		571	my $key = "$_[0]/$_[1]";
		572
		573	cf::sync_job {
		574	BDB::db_get $DB, undef, $key, my $data;
		575
		576	$! ? ()
		577	: $data
335	1	578	}
		579	}
		580
		581	sub db_put($$$) {
		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 => $type });
336	}	665	}
337		666
338	=back	667	=back
339		668
340	=cut	669	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		670
462	#############################################################################	671	#############################################################################
463		672
464	=head2 ATTACHABLE OBJECTS	673	=head2 ATTACHABLE OBJECTS
465		674
…		…
467	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")
468	to it. All such attachable objects support the following methods.	677	to it. All such attachable objects support the following methods.
469		678
470	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>
471	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
472	crossfire+).	681	Deliantra).
473		682
474	=over 4	683	=over 4
475		684
476	=item $attachable->attach ($attachment, key => $value...)	685	=item $attachable->attach ($attachment, key => $value...)
477		686
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	800	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	801	our @CB_MAP = ();
593		802
594	my %attachment;	803	my %attachment;
595		804
		805	sub cf::attachable::thawer_merge {
		806	# simply override everything except _meta
		807	local $_[0]{_meta};
		808	%{$_[0]} = %{$_[1]};
		809	}
		810
596	sub _attach_cb($$$$) {	811	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	812	my ($registry, $event, $prio, $cb) = @_;
598		813
599	use sort 'stable';	814	use sort 'stable';
600		815
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	849	$registry = $CB_TYPE[$object_type] ||= [];
635		850
636	} elsif ($type eq "subtype") {	851	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	852	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	853	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	854	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		855
641	} elsif ($type eq "package") {	856	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	857	my $pkg = shift @arg;
643		858
644	while (my ($name, $id) = each %cb_id) {	859	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	888	_attach $registry, $klass, @attach;
674	}	889	}
675		890
676	$obj->{$name} = \%arg;	891	$obj->{$name} = \%arg;
677	} else {	892	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	893	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	894	}
680		895
681	$obj->{_attachment}{$name} = undef;	896	$obj->{_attachment}{$name} = undef;
682	}	897	}
683		898
…		…
685	if (ref $_[0]) {	900	if (ref $_[0]) {
686	_object_attach @_;	901	_object_attach @_;
687	} else {	902	} else {
688	_attach shift->_attach_registry, @_;	903	_attach shift->_attach_registry, @_;
689	}	904	}
		905	_recalc_want;
690	};	906	};
691		907
692	# all those should be optimised	908	# all those should be optimised
693	sub cf::attachable::detach {	909	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	910	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	913	delete $obj->{_attachment}{$name};
698	reattach ($obj);	914	reattach ($obj);
699	} else {	915	} else {
700	Carp::croak "cannot, currently, detach class attachments";	916	Carp::croak "cannot, currently, detach class attachments";
701	}	917	}
		918	_recalc_want;
702	};	919	};
703		920
704	sub cf::attachable::attached {	921	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	922	my ($obj, $name) = @_;
706		923
…		…
721	";	938	";
722	die if $@;	939	die if $@;
723	}	940	}
724		941
725	our $override;	942	our $override;
726	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?
727		944
728	sub override {	945	sub override {
729	$override = 1;	946	$override = 1;
730	@invoke_results = ();	947	@INVOKE_RESULTS = (@_);
731	}	948	}
732		949
733	sub do_invoke {	950	sub do_invoke {
734	my $event = shift;	951	my $event = shift;
735	my $callbacks = shift;	952	my $callbacks = shift;
736		953
737	@invoke_results = ();	954	@INVOKE_RESULTS = ();
738		955
739	local $override;	956	local $override;
740		957
741	for (@$callbacks) {	958	for (@$callbacks) {
742	eval { &{$_->[1]} };	959	eval { &{$_->[1]} };
…		…
759		976
760	Generate an object-specific event with the given arguments.	977	Generate an object-specific event with the given arguments.
761		978
762	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
763	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
764	results (if you must, access C<@cf::invoke_results> directly).	981	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		982
766	=back	983	=back
767		984
768	=cut	985	=cut
769		986
770	#############################################################################	987	#############################################################################
771	# object support	988	# object support
		989
		990	sub _object_equal($$);
		991	sub _object_equal($$) {
		992	my ($a, $b) = @_;
		993
		994	return 0 unless (ref $a) eq (ref $b);
		995
		996	if ("HASH" eq ref $a) {
		997	my @ka = keys %$a;
		998	my @kb = keys %$b;
		999
		1000	return 0 if @ka != @kb;
		1001
		1002	for (0 .. $#ka) {
		1003	return 0 unless $ka[$_] eq $kb[$_];
		1004	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1005	}
		1006
		1007	} elsif ("ARRAY" eq ref $a) {
		1008
		1009	return 0 if @$a != @$b;
		1010
		1011	for (0 .. $#$a) {
		1012	return 0 unless _object_equal $a->[$_], $b->[$_];
		1013	}
		1014
		1015	} elsif ($a ne $b) {
		1016	return 0;
		1017	}
		1018
		1019	1
		1020	}
		1021
		1022	our $SLOW_MERGES;#d#
		1023	sub _can_merge {
		1024	my ($ob1, $ob2) = @_;
		1025
		1026	++$SLOW_MERGES;#d#
		1027
		1028	# we do the slow way here
		1029	return _object_equal $ob1, $ob2
		1030	}
772		1031
773	sub reattach {	1032	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	1033	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	1034	my ($obj) = @_;
		1035
		1036	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		1037
777	my $registry = $obj->registry;	1038	my $registry = $obj->registry;
778		1039
779	@$registry = ();	1040	@$registry = ();
780		1041
…		…
795	cf::attachable->attach (	1056	cf::attachable->attach (
796	prio => -1000000,	1057	prio => -1000000,
797	on_instantiate => sub {	1058	on_instantiate => sub {
798	my ($obj, $data) = @_;	1059	my ($obj, $data) = @_;
799		1060
800	$data = from_json $data;	1061	$data = decode_json $data;
801		1062
802	for (@$data) {	1063	for (@$data) {
803	my ($name, $args) = @$_;	1064	my ($name, $args) = @$_;
804		1065
805	$obj->attach ($name, %{$args || {} });	1066	$obj->attach ($name, %{$args || {} });
…		…
821	sub object_freezer_save {	1082	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1083	my ($filename, $rdata, $objs) = @_;
823		1084
824	sync_job {	1085	sync_job {
825	if (length $$rdata) {	1086	if (length $$rdata) {
		1087	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1088	warn sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1089	$decname, length $$rdata, scalar @$objs;
828		1090
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1091	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1092	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1093	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	1094	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	1095	close $fh;
834		1096
835	if (@$objs) {	1097	if (@$objs) {
836	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) {
837	chmod SAVE_MODE, $fh;	1099	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1100	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1101	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	1102	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	1103	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1104	aio_rename "$filename.pst~", "$filename.pst";
843	}	1105	}
844	} else {	1106	} else {
845	aio_unlink "$filename.pst";	1107	aio_unlink "$filename.pst";
…		…
851	}	1113	}
852	} else {	1114	} else {
853	aio_unlink $filename;	1115	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1116	aio_unlink "$filename.pst";
855	}	1117	}
856	}	1118	};
857	}	1119	}
858		1120
859	sub object_freezer_as_string {	1121	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1122	my ($rdata, $objs) = @_;
861		1123
…		…
873	or return;	1135	or return;
874		1136
875	unless (aio_stat "$filename.pst") {	1137	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1138	(aio_load "$filename.pst", $av) >= 0
877	or return;	1139	or return;
		1140
878	$av = eval { (Storable::thaw $av)->{objs} };	1141	my $st = eval { Coro::Storable::thaw $av };
		1142	$av = $st->{objs};
879	}	1143	}
880		1144
		1145	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1146	warn sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1147	$decname, length $data, scalar @{$av || []};
		1148
883	return ($data, $av);	1149	($data, $av)
884	}	1150	}
		1151
		1152	=head2 COMMAND CALLBACKS
		1153
		1154	=over 4
		1155
		1156	=cut
885		1157
886	#############################################################################	1158	#############################################################################
887	# command handling &c	1159	# command handling &c
888		1160
889	=item cf::register_command $name => \&callback($ob,$args);	1161	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1174	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1175	}
904		1176
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1177	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1178
907	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.
908		1184
909	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
910	called.	1186	called.
911		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
912	=cut	1199	=cut
913		1200
914	sub register_extcmd {	1201	sub register_extcmd {
915	my ($name, $cb) = @_;	1202	my ($name, $cb) = @_;
916		1203
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1204	$EXTCMD{$name} = $cb;
		1205	}
		1206
		1207	sub register_exticmd {
		1208	my ($name, $cb) = @_;
		1209
		1210	$EXTICMD{$name} = $cb;
921	}	1211	}
922		1212
923	cf::player->attach (	1213	cf::player->attach (
924	on_command => sub {	1214	on_command => sub {
925	my ($pl, $name, $params) = @_;	1215	my ($pl, $name, $params) = @_;
…		…
934	cf::override;	1224	cf::override;
935	},	1225	},
936	on_extcmd => sub {	1226	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1227	my ($pl, $buf) = @_;
938		1228
939	my $msg = eval { from_json $buf };	1229	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1230
941	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
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1239	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1240	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1241	}
		1242
		1243	$pl->ext_reply ($reply, @reply)
		1244	if $reply;
		1245
947	} else {	1246	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1247	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1248	}
950		1249
951	cf::override;	1250	cf::override;
952	},	1251	},
953	);	1252	);
954		1253
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	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($) {
962	my ($path) = @_;	1693	my ($path) = @_;
963		1694
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1695	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1696
970	warn "loading '$path' into '$pkg'\n";	1697	for my $region (list) {
971		1698	if ($region->{match} && $path =~ $region->{match}) {
972	open my $fh, "<:utf8", $path	1699	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1700	if $region->specificity > $specificity;
974		1701	}
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	1702	}
1004		1703
1005	# remove commands	1704	$match
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}
1030
1031	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;
1034	eval {
1035	load_extension $ext;
1036	1
1037	} or warn "$ext not loaded: $@";
1038	}
1039	}
1040
1041	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078
1079	=head2 CORE EXTENSIONS
1080
1081	Functions and methods that extend core crossfire objects.
1082
1083	=head3 cf::player
1084
1085	=over 4
1086
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut
1092
1093	sub cf::player::exists($) {
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099
1100	Sends an ext reply to the player.
1101
1102	=cut
1103
1104	sub cf::player::ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;
1106
1107	$msg{msgid} = $id;
1108
1109	$self->send ("ext " . to_json \%msg);
1110	}	1705	}
1111		1706
1112	=back	1707	=back
1113
1114		1708
1115	=head3 cf::map	1709	=head3 cf::map
1116		1710
1117	=over 4	1711	=over 4
1118		1712
…		…
1121	package cf::map;	1715	package cf::map;
1122		1716
1123	use Fcntl;	1717	use Fcntl;
1124	use Coro::AIO;	1718	use Coro::AIO;
1125		1719
		1720	use overload
		1721	'""' => \&as_string,
		1722	fallback => 1;
		1723
1126	our $MAX_RESET = 3600;	1724	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1725	our $DEFAULT_RESET = 3000;
1128		1726
1129	sub generate_random_map {	1727	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1728	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1729	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1730	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1731	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1732	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1733	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1734	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1735	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1736	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1737	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1738	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$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},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1740	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(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"
1146	}	1870	}
1147		1871
1148	# and all this just because we cannot iterate over	1872	# and all this just because we cannot iterate over
1149	# all maps in C++...	1873	# all maps in C++...
1150	sub change_all_map_light {	1874	sub change_all_map_light {
…		…
1152		1876
1153	$_->change_map_light ($change)	1877	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1878	for grep $_->outdoor, values %cf::MAP;
1155	}	1879	}
1156		1880
		1881	sub decay_objects {
		1882	my ($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
1157	sub try_load_header($) {	1897	sub load_header_from($) {
1158	my ($path) = @_;	1898	my ($self, $path) = @_;
1159		1899
1160	utf8::encode $path;	1900	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1162	or return;	1902	or return;
1163		1903
1164	my $map = cf::map::new	1904	$self->_load_header ($f)
1165	or return;	1905	or return;
1166		1906
1167	# for better error messages only, will be overwritten	1907	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	1908	$f->resolve_delayed_derefs;
1169		1909
1170	$map->load_header ($path)	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
1171	or return;	1953	or return;
		1954	$self->prepare_orig;
		1955	}
1172		1956
1173	$map->{load_path} = $path;	1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
1174		1959
1175	$map	1960	$self->default_region (cf::region::find_by_path $self->{path})
		1961	unless $self->default_region;
		1962
		1963	1
1176	}	1964	}
1177		1965
1178	sub find;	1966	sub find;
1179	sub find {	1967	sub find {
1180	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1181		1969
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1971
		1972	cf::lock_wait "map_data:$path";#d#remove
1187	cf::lock_wait "map_find:$key";	1973	cf::lock_wait "map_find:$path";
1188		1974
1189	$cf::MAP{$key} || do {	1975	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1976	my $guard1 = cf::lock_acquire "map_find:$path";
		1977	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1191		1978
1192	# do it the slow way	1979	my $map = new_from_path cf::map $path
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1980	or return;
1211		1981
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1982	$map->{last_save} = $cf::RUNTIME;
1224		1983
1225	Coro::cede;	1984	$map->load_header
		1985	or return;
1226		1986
1227	if ($map->should_reset) {	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;
1228	$map->reset;	1992	$map->reset;
1229	undef $guard;
1230	$map = find $path	1993	return find $path;
1231	or return;
1232	}	1994	}
1233		1995
1234	$cf::MAP{$key} = $map	1996	$cf::MAP{$path} = $map
1235	}	1997	}
1236	}	1998	}
		1999
		2000	sub pre_load { }
		2001	sub post_load { }
1237		2002
1238	sub load {	2003	sub load {
1239	my ($self) = @_;	2004	my ($self) = @_;
1240		2005
		2006	local $self->{deny_reset} = 1; # loading can take a long time
		2007
1241	my $path = $self->{path};	2008	my $path = $self->{path};
		2009
		2010	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2011	my $guard = cf::lock_acquire "map_data:$path";
1243		2012
		2013	return unless $self->valid;
1244	return if $self->in_memory != cf::MAP_SWAPPED;	2014	return unless $self->in_memory == cf::MAP_SWAPPED;
1245		2015
1246	$self->in_memory (cf::MAP_LOADING);	2016	$self->in_memory (cf::MAP_LOADING);
1247		2017
1248	$self->alloc;	2018	$self->alloc;
1249	$self->load_objects ($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)
1250	or return;	2026	or return;
1251		2027
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2028	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	2029	if delete $self->{load_original};
1254		2030
1255	if (my $uniq = $path->uniq_path) {	2031	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	2032	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	2033	unless (aio_stat $uniq) {
		2034	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	2035	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	2036	$self->_load_objects ($f);
		2037	$f->resolve_delayed_derefs;
		2038	}
1260	}	2039	}
1261	}	2040	}
1262		2041
1263	Coro::cede;	2042	$f->resolve_delayed_derefs;
1264		2043
		2044	cf::cede_to_tick;
1265	# now do the right thing for maps	2045	# now do the right thing for maps
1266	$self->link_multipart_objects;	2046	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	2047	$self->difficulty ($self->estimate_difficulty)
1277	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;
1278	$self->activate;	2058	$self->activate;
1279	}	2059	}
1280		2060
1281	Coro::cede;	2061	$self->{last_save} = $cf::RUNTIME;
		2062	$self->last_access ($cf::RUNTIME);
1282		2063
1283	$self->in_memory (cf::MAP_IN_MEMORY);	2064	$self->in_memory (cf::MAP_IN_MEMORY);
		2065	}
		2066
		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	$neigh->load;
		2105	}
1284	}	2106	}
1285		2107
1286	sub find_sync {	2108	sub find_sync {
1287	my ($path, $origin) = @_;	2109	my ($path, $origin) = @_;
1288		2110
1289	cf::sync_job { cf::map::find $path, $origin }	2111	cf::sync_job { find $path, $origin }
1290	}	2112	}
1291		2113
1292	sub do_load_sync {	2114	sub do_load_sync {
1293	my ($map) = @_;	2115	my ($map) = @_;
1294		2116
		2117	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2118	if $Coro::current == $Coro::main;
		2119
1295	cf::sync_job { $map->load };	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;
		2150	};
		2151	$MAP_PREFETCHER->prio (6);
		2152
		2153	()
1296	}	2154	}
1297		2155
1298	sub save {	2156	sub save {
1299	my ($self) = @_;	2157	my ($self) = @_;
1300		2158
		2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2160
1301	$self->{last_save} = $cf::RUNTIME;	2161	$self->{last_save} = $cf::RUNTIME;
1302		2162
1303	return unless $self->dirty;	2163	return unless $self->dirty;
1304		2164
1305	my $save = $self->{path}->save_path; utf8::encode $save;	2165	my $save = $self->save_path; utf8::encode $save;
1306	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2166	my $uniq = $self->uniq_path; utf8::encode $uniq;
1307		2167
1308	$self->{load_path} = $save;	2168	$self->{load_path} = $save;
1309		2169
1310	return if $self->{deny_save};	2170	return if $self->{deny_save};
1311		2171
1312	local $self->{last_access} = $self->last_access;#d#	2172	local $self->{last_access} = $self->last_access;#d#
1313		2173
		2174	cf::async {
		2175	$Coro::current->{desc} = "map player save";
		2176	$_->contr->save for $self->players;
		2177	};
		2178
1314	if ($uniq) {	2179	if ($uniq) {
1315	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2180	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1316	$self->save_objects ($uniq, cf::IO_UNIQUES);	2181	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1317	} else {	2182	} else {
1318	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2183	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1319	}	2184	}
1320	}	2185	}
1321		2186
1322	sub swap_out {	2187	sub swap_out {
1323	my ($self) = @_;	2188	my ($self) = @_;
1324		2189
1325	# save first because save cedes	2190	# save first because save cedes
1326	$self->save;	2191	$self->save;
		2192
		2193	my $lock = cf::lock_acquire "map_data:$self->{path}";
1327		2194
1328	return if $self->players;	2195	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	2196	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};	2197	return if $self->{deny_save};
1331		2198
		2199	$self->in_memory (cf::MAP_SWAPPED);
		2200
		2201	$self->deactivate;
		2202	$_->clear_links_to ($self) for values %cf::MAP;
1332	$self->clear;	2203	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);
1334	}	2204	}
1335		2205
1336	sub reset_at {	2206	sub reset_at {
1337	my ($self) = @_;	2207	my ($self) = @_;
1338		2208
1339	# TODO: safety, remove and allow resettable per-player maps	2209	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2210	return 1e99 if $self->{deny_reset};
1342		2211
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2212	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2213	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2214
…		…
1350	my ($self) = @_;	2219	my ($self) = @_;
1351		2220
1352	$self->reset_at <= $cf::RUNTIME	2221	$self->reset_at <= $cf::RUNTIME
1353	}	2222	}
1354		2223
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2224	sub reset {
1377	my ($self) = @_;	2225	my ($self) = @_;
1378		2226
		2227	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2228
1379	return if $self->players;	2229	return if $self->players;
1380	return if $self->{path}{user_rel};#d#
1381		2230
1382	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	}
1383		2242
1384	delete $cf::MAP{$self->path};	2243	delete $cf::MAP{$self->path};
1385		2244
		2245	$self->deactivate;
1386	$_->clear_links_to ($self) for values %cf::MAP;	2246	$_->clear_links_to ($self) for values %cf::MAP;
		2247	$self->clear;
1387		2248
1388	$self->unlink_save;	2249	$self->unlink_save;
1389	$self->destroy;	2250	$self->destroy;
1390	}	2251	}
1391		2252
1392	my $nuke_counter = "aaaa";	2253	my $nuke_counter = "aaaa";
1393		2254
1394	sub nuke {	2255	sub nuke {
1395	my ($self) = @_;	2256	my ($self) = @_;
1396		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};
1397	$self->{deny_save} = 1;	2267	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	2268	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	2269	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2270
		2271	$cf::MAP{$self->path} = $self;
		2272	}
		2273
1400	$self->reset; # polite request, might not happen	2274	$self->reset; # polite request, might not happen
1401	}	2275	}
1402		2276
1403	sub customise_for {	2277	=item $maps = cf::map::tmp_maps
1404	my ($map, $ob) = @_;
1405		2278
1406	if ($map->per_player) {	2279	Returns an arrayref with all map paths of currently instantiated and saved
1407	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2280	maps. May block.
		2281
		2282	=cut
		2283
		2284	sub tmp_maps() {
1408	}	2285	[
1409		2286	map {
1410	$map	2287	utf8::decode $_;
		2288	/\.map$/
		2289	? normalise $_
		2290	: ()
		2291	} @{ aio_readdir $TMPDIR or [] }
		2292	]
1411	}	2293	}
1412		2294
1413	sub emergency_save {	2295	=item $maps = cf::map::random_maps
1414	my $freeze_guard = cf::freeze_mainloop;
1415		2296
1416	warn "enter emergency map save\n";	2297	Returns an arrayref with all map paths of currently instantiated and saved
		2298	random maps. May block.
1417		2299
1418	cf::sync_job {	2300	=cut
1419	warn "begin emergency map save\n";
1420	$_->save for values %cf::MAP;
1421	};
1422		2301
1423	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	]
1424	}	2329	}
1425		2330
1426	package cf;	2331	package cf;
1427		2332
1428	=back	2333	=back
1429		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
1430		2389
1431	=head3 cf::object::player	2390	=head3 cf::object::player
1432		2391
1433	=over 4	2392	=over 4
1434		2393
…		…
1448		2407
1449	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2408	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1450		2409
1451	if ($self->{record_replies}) {	2410	if ($self->{record_replies}) {
1452	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2411	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2412
1453	} 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 {
1454	$msg = $npc->name . " says: $msg" if $npc;	2421	$msg = $npc->name . " says: $msg" if $npc;
1455	$self->message ($msg, $flags);	2422	$self->message ($msg, $flags);
		2423	}
1456	}	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 (@_);
1457	}	2435	}
1458		2436
1459	=item $player_object->may ("access")	2437	=item $player_object->may ("access")
1460		2438
1461	Returns wether the given player is authorized to access resource "access"	2439	Returns wether the given player is authorized to access resource "access"
…		…
1474		2452
1475	=item $player_object->enter_link	2453	=item $player_object->enter_link
1476		2454
1477	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}>).
1478		2456
1479	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
1480	I<MUST> call C<leave_link> as soon as possible, though.	2458	I<MUST> call C<leave_link> as soon as possible, though.
1481		2459
		2460	Will never block.
		2461
1482	=item $player_object->leave_link ($map, $x, $y)	2462	=item $player_object->leave_link ($map, $x, $y)
1483		2463
1484	Moves the player out of the specila link map onto the given map. If the	2464	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	2465	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	2466	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	2467	fails, to the emergency map position.
1488		2468
1489	Might block.	2469	Might block.
1490		2470
1491	=cut	2471	=cut
		2472
		2473	sub link_map {
		2474	unless ($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	$LINK_MAP
		2481	}
1492		2482
1493	sub cf::object::player::enter_link {	2483	sub cf::object::player::enter_link {
1494	my ($self) = @_;	2484	my ($self) = @_;
1495		2485
1496	$self->deactivate_recursive;	2486	$self->deactivate_recursive;
1497		2487
1498	return if $self->map == $LINK_MAP;	2488	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		2489
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	2491	if $self->map && $self->map->{path} ne "{link}";
1502		2492
1503	$self->enter_map ($LINK_MAP, 20, 20);	2493	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	2494	}
1505		2495
1506	sub cf::object::player::leave_link {	2496	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	2497	my ($self, $map, $x, $y) = @_;
		2498
		2499	return unless $self->contr->active;
1508		2500
1509	my $link_pos = delete $self->{_link_pos};	2501	my $link_pos = delete $self->{_link_pos};
1510		2502
1511	unless ($map) {	2503	unless ($map) {
1512	# restore original map position	2504	# restore original map position
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	2518	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	2519	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	2520	if $x <=0 && $y <= 0;
1529		2521
1530	$map->load;	2522	$map->load;
		2523	$map->load_neighbours;
1531		2524
		2525	return unless $self->contr->active;
1532	$self->activate_recursive;	2526	$self->activate_recursive;
		2527
		2528	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	2529	$self->enter_map ($map, $x, $y);
1534	}	2530	}
1535		2531
1536	cf::player->attach (	2532	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1537	on_logout => sub {
1538	my ($pl) = @_;
1539		2533
1540	# abort map switching before logout	2534	Moves the player to the given map-path and coordinates by first freezing
1541	if ($pl->ob->{_link_pos}) {	2535	her, loading and preparing them map, calling the provided $check callback
1542	cf::sync_job {	2536	that has to return the map if sucecssful, and then unfreezes the player on
1543	$pl->ob->leave_link	2537	the new (success) or old (failed) map position. In either case, $done will
1544	};	2538	be called at the end of this process.
1545	}
1546	},
1547	on_login => sub {
1548	my ($pl) = @_;
1549		2539
1550	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;
1554	cf::async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;
1559	};
1560	}
1561	},
1562	);
1563
1564	=item $player_object->goto ($path, $x, $y)
1565
1566	=cut	2540	=cut
		2541
		2542	our $GOTOGEN;
1567		2543
1568	sub cf::object::player::goto {	2544	sub cf::object::player::goto {
1569	my ($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;
1570		2549
1571	$self->enter_link;	2550	$self->enter_link;
1572		2551
1573	(cf::async {	2552	(async {
1574	$path = new cf::path $path;	2553	$Coro::current->{desc} = "player::goto $path $x $y";
1575		2554
1576	my $map = cf::map::find $path->as_string;	2555	# *tag paths override both path and x|y
		2556	if ($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) {
1577	$map = $map->customise_for ($self) if $map;	2578	$map = $map->customise_for ($self);
1578		2579	$map = $check->($map) if $check && $map;
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	2580	} else {
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2581	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2582	}
1583		2583
		2584	$map
		2585	};
		2586
		2587	if ($@) {
		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 $@;
		2590	}
		2591
		2592	if ($gen == $self->{_goto_generation}) {
		2593	delete $self->{_goto_generation};
1584	$self->leave_link ($map, $x, $y);	2594	$self->leave_link ($map, $x, $y);
		2595	}
		2596
		2597	$done->() if $done;
1585	})->prio (1);	2598	})->prio (1);
1586	}	2599	}
1587		2600
1588	=item $player_object->enter_exit ($exit_object)	2601	=item $player_object->enter_exit ($exit_object)
1589		2602
…		…
1591		2604
1592	sub parse_random_map_params {	2605	sub parse_random_map_params {
1593	my ($spec) = @_;	2606	my ($spec) = @_;
1594		2607
1595	my $rmp = { # defaults	2608	my $rmp = { # defaults
1596	xsize => 10,	2609	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	2610	ysize => (cf::rndm 15, 40),
		2611	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2612	#layout => string,
1598	};	2613	};
1599		2614
1600	for (split /\n/, $spec) {	2615	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	2616	my ($k, $v) = split /\s+/, $_, 2;
1602		2617
…		…
1606	$rmp	2621	$rmp
1607	}	2622	}
1608		2623
1609	sub prepare_random_map {	2624	sub prepare_random_map {
1610	my ($exit) = @_;	2625	my ($exit) = @_;
		2626
		2627	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		2628
1612	# all this does is basically replace the /! path by	2629	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	2630	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	2631	# that depends on the exit object
1615		2632
1616	my $rmp = parse_random_map_params $exit->msg;	2633	my $rmp = parse_random_map_params $exit->msg;
1617		2634
1618	if ($exit->map) {	2635	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	2636	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	2637	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	2638	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	2639	$rmp->{origin_y} = $exit->y;
1623	}	2640	}
1624		2641
1625	$rmp->{random_seed} ||= $exit->random_seed;	2642	$rmp->{random_seed} ||= $exit->random_seed;
1626		2643
1627	my $data = cf::to_json $rmp;	2644	my $data = cf::encode_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	2645	my $md5 = Digest::MD5::md5_hex $data;
		2646	my $meta = "$RANDOMDIR/$md5.meta";
1629		2647
1630	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) {
1631	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;
1632		2652
1633	$exit->slaying ("?random/$md5");	2653	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	2654	$exit->msg (undef);
1635	}	2655	}
1636	}	2656	}
…		…
1638	sub cf::object::player::enter_exit {	2658	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	2659	my ($self, $exit) = @_;
1640		2660
1641	return unless $self->type == cf::PLAYER;	2661	return unless $self->type == cf::PLAYER;
1642		2662
		2663	if ($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
1643	$self->enter_link;	2674	$self->enter_link;
1644		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
1645	(cf::async {	2680	(async {
		2681	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2682
1646	$self->deactivate_recursive; # just to be sure	2683	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2684	unless (eval {
1648	prepare_random_map $exit	2685	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1653		2686
1654	1;	2687	1;
1655	}) {	2688	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2689	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "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. "
1658	. "Please report this to the dungeon master",	2691	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2692	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2693
1661	warn "ERROR in enter_exit: $@";	2694	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2695	$self->leave_link;
1663	}	2696	}
1664	})->prio (1);	2697	})->prio (1);
…		…
1677		2710
1678	sub cf::client::send_drawinfo {	2711	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2712	my ($self, $text, $flags) = @_;
1680		2713
1681	utf8::encode $text;	2714	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2715	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2716	}
1684		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	}
1685		2876
1686	=item $success = $client->query ($flags, "text", \&cb)	2877	=item $success = $client->query ($flags, "text", \&cb)
1687		2878
1688	Queues a query to the client, calling the given callback with	2879	Queues a query to the client, calling the given callback with
1689	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>,
1690	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>.
1691		2882
1692	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
1693	reliable at some point in the future.	2884	become reliable at some point in the future.
1694		2885
1695	=cut	2886	=cut
1696		2887
1697	sub cf::client::query {	2888	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	2889	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	2897	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		2899
1709	$self->send_packet ($self->{query_queue}[0][0])	2900	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	2901	if @{ $self->{query_queue} } == 1;
		2902
		2903	1
1711	}	2904	}
1712		2905
1713	cf::client->attach (	2906	cf::client->attach (
		2907	on_connect => sub {
		2908	my ($ns) = @_;
		2909
		2910	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2911	},
1714	on_reply => sub {	2912	on_reply => sub {
1715	my ($ns, $msg) = @_;	2913	my ($ns, $msg) = @_;
1716		2914
1717	# this weird shuffling is so that direct followup queries	2915	# this weird shuffling is so that direct followup queries
1718	# get handled first	2916	# get handled first
1719	my $queue = delete $ns->{query_queue}	2917	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2918	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2919
1722	(shift @$queue)->[1]->($msg);	2920	(shift @$queue)->[1]->($msg);
		2921	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2922
1724	push @{ $ns->{query_queue} }, @$queue;	2923	push @{ $ns->{query_queue} }, @$queue;
1725		2924
1726	if (@{ $ns->{query_queue} } == @$queue) {	2925	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2926	if (@$queue) {
…		…
1729	} else {	2928	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2929	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	2930	}
1732	}	2931	}
1733	},	2932	},
		2933	on_exticmd => sub {
		2934	my ($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	},
1734	);	2959	);
1735		2960
1736	=item $client->coro (\&cb)	2961	=item $client->async (\&cb)
1737		2962
1738	Create a new coroutine, running the specified callback. The coroutine will	2963	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2964	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2965	or loss of connection).
1741		2966
1742	=cut	2967	=cut
1743		2968
1744	sub cf::client::coro {	2969	sub cf::client::async {
1745	my ($self, $cb) = @_;	2970	my ($self, $cb) = @_;
1746		2971
1747	my $coro = &cf::async ($cb);	2972	my $coro = &Coro::async ($cb);
1748		2973
1749	$coro->on_destroy (sub {	2974	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2975	delete $self->{_coro}{$coro+0};
1751	});	2976	});
1752		2977
…		…
1779	our $safe = new Safe "safe";	3004	our $safe = new Safe "safe";
1780	our $safe_hole = new Safe::Hole;	3005	our $safe_hole = new Safe::Hole;
1781		3006
1782	$SIG{FPE} = 'IGNORE';	3007	$SIG{FPE} = 'IGNORE';
1783		3008
1784	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3009	$safe->permit_only (Opcode::opset qw(
		3010	:base_core :base_mem :base_orig :base_math
		3011	grepstart grepwhile mapstart mapwhile
		3012	sort time
		3013	));
1785		3014
1786	# here we export the classes and methods available to script code	3015	# here we export the classes and methods available to script code
1787		3016
1788	=pod	3017	=pod
1789		3018
1790	The following fucntions and emthods are available within a safe environment:	3019	The following functions and methods are available within a safe environment:
1791		3020
1792	cf::object contr pay_amount pay_player map	3021	cf::object
		3022	contr pay_amount pay_player map x y force_find force_add destroy
		3023	insert remove name archname title slaying race decrease_ob_nr
		3024
1793	cf::object::player player	3025	cf::object::player
1794	cf::player peaceful	3026	player
1795	cf::map trigger	3027
		3028	cf::player
		3029	peaceful
		3030
		3031	cf::map
		3032	trigger
1796		3033
1797	=cut	3034	=cut
1798		3035
1799	for (	3036	for (
1800	["cf::object" => qw(contr pay_amount pay_player map)],	3037	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3038	insert remove inv name archname title slaying race
		3039	decrease_ob_nr destroy)],
1801	["cf::object::player" => qw(player)],	3040	["cf::object::player" => qw(player)],
1802	["cf::player" => qw(peaceful)],	3041	["cf::player" => qw(peaceful)],
1803	["cf::map" => qw(trigger)],	3042	["cf::map" => qw(trigger)],
1804	) {	3043	) {
1805	no strict 'refs';	3044	no strict 'refs';
…		…
1876	=back	3115	=back
1877		3116
1878	=cut	3117	=cut
1879		3118
1880	#############################################################################	3119	#############################################################################
		3120	# the server's init and main functions
1881		3121
1882	=head2 EXTENSION DATABASE SUPPORT	3122	sub load_facedata($) {
		3123	my ($path) = @_;
1883		3124
1884	Crossfire maintains a very simple database for extension use. It can	3125	# HACK to clear player env face cache, we need some signal framework
1885	currently store anything that can be serialised using Storable, which	3126	# for this (global event?)
1886	excludes objects.	3127	%ext::player_env::MUSIC_FACE_CACHE = ();
1887		3128
1888	The parameter C<$family> should best start with the name of the extension	3129	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1889	using it, it should be unique.
1890		3130
1891	=over 4	3131	warn "loading facedata from $path\n";
1892		3132
1893	=item $hashref = cf::db_get $family	3133	my $facedata;
		3134	0 < aio_load $path, $facedata
		3135	or die "$path: $!";
1894		3136
1895	Return a hashref for use by the extension C<$family>, which can be	3137	$facedata = Coro::Storable::thaw $facedata;
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898		3138
1899	=item $value = cf::db_get $family => $key	3139	$facedata->{version} == 2
		3140	or cf::cleanup "$path: version mismatch, cannot proceed.";
1900		3141
1901	Returns a single value from the database	3142	# patch in the exptable
1902		3143	$facedata->{resource}{"res/exp_table"} = {
1903	=item cf::db_put $family => $hashref	3144	type => FT_RSRC,
1904		3145	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907
1908	=item cf::db_put $family => $key => $value
1909
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920
1921	=cut
1922
1923	our $DB;
1924
1925	{
1926	my $path = cf::localdir . "/database.pst";
1927
1928	sub db_load() {
1929	$DB = stat $path ? Storable::retrieve $path : { };
1930	}
1931
1932	my $pid;
1933
1934	sub db_save() {
1935	waitpid $pid, 0 if $pid;
1936	if (0 == ($pid = fork)) {
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});	3146	};
		3147	cf::cede_to_tick;
1954		3148
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}	3149	{
		3150	my $faces = $facedata->{faceinfo};
1959		3151
1960	sub db_get($;$) {	3152	while (my ($face, $info) = each %$faces) {
1961	@_ >= 2	3153	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1962	? $DB->{$_[0]}{$_[1]}	3154	cf::face::set_visibility $idx, $info->{visibility};
1963	: ($DB->{$_[0]} ||= { })	3155	cf::face::set_magicmap $idx, $info->{magicmap};
1964	}	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};
1965		3158
1966	sub db_put($$;$) {	3159	cf::cede_to_tick;
1967	if (@_ >= 3) {
1968	$DB->{$_[0]}{$_[1]} = $_[2];
1969	} else {
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974
1975	cf::global->attach (
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	3160	}
1980	);
1981	}
1982		3161
1983	#############################################################################	3162	while (my ($face, $info) = each %$faces) {
1984	# 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	}
1985		3172
1986	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 {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	3299	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	3300	or return;
1989		3301
1990	local $/;	3302	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	3303	*CFG = YAML::Syck::Load <$fh>;
1992		3304
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3305	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		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
1995	if (exists $CFG{mlockall}) {	3310	if (exists $CFG{mlockall}) {
1996	eval {	3311	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	3312	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	3313	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	3314	};
2000	warn $@ if $@;	3315	warn $@ if $@;
2001	}	3316	}
2002	}	3317	}
2003		3318
2004	sub main {	3319	sub main {
2005	# we must not ever block the main coroutine	3320	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	3321	local $Coro::idle = sub {
2007	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#
2008	(Coro::unblock_sub {	3323	(async {
2009	Event::one_event;	3324	$Coro::current->{desc} = "IDLE BUG HANDLER";
2010	})->();	3325	EV::loop EV::LOOP_ONESHOT;
		3326	})->prio (Coro::PRIO_MAX);
2011	};	3327	};
2012		3328
2013	cfg_load;	3329	reload_config;
2014	db_load;	3330	db_init;
2015	load_extensions;	3331	load_extensions;
		3332
		3333	$TICK_WATCHER->start;
		3334	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2016	Event::loop;	3335	EV::loop;
2017	}	3336	}
2018		3337
2019	#############################################################################	3338	#############################################################################
2020	# initialisation	3339	# initialisation and cleanup
2021		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
2022	sub reload() {	3430	sub do_reload_perl() {
2023	# can/must only be called in main	3431	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	3432	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	3433	warn "can only reload from main coroutine";
2026	return;	3434	return;
2027	}	3435	}
2028		3436
2029	warn "reloading...";	3437	warn "reloading...";
2030		3438
2031	my $guard = freeze_mainloop;	3439	warn "entering sync_job";
		3440
		3441	cf::sync_job {
		3442	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	3443	cf::emergency_save;
		3444	cf::write_runtime; # external watchdog should not bark
2033		3445
2034	eval {	3446	warn "syncing database to disk";
		3447	BDB::db_env_txn_checkpoint $DB_ENV;
		3448
2035	# 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
2036		3450
2037	# cancel all watchers	3451	warn "flushing outstanding aio requests";
2038	for (Event::all_watchers) {	3452	for (;;) {
2039	$_->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...";
2040	}	3458	}
2041		3459
		3460	++$RELOAD;
		3461
2042	# cancel all extension coros	3462	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	3463	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	3464	%EXT_CORO = ();
2045		3465
2046	# unload all extensions	3466	warn "removing commands";
2047	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) {
2048	warn "unloading <$_>";	3475	warn "... unloading $pkg";
2049	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: $@";
2050	}	3482	}
2051		3483
		3484	warn "... nuking $pkg";
		3485	Symbol::delete_package $pkg;
		3486	}
		3487
2052	# unload all modules loaded from $LIBDIR	3488	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	3489	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3490	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		3491
2056	warn "removing <$k>";	3492	warn "... unloading $k";
2057	delete $INC{$k};	3493	delete $INC{$k};
2058		3494
2059	$k =~ s/\.pm$//;	3495	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	3496	$k =~ s/\//::/g;
2061		3497
…		…
2064	}	3500	}
2065		3501
2066	Symbol::delete_package $k;	3502	Symbol::delete_package $k;
2067	}	3503	}
2068		3504
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	3505	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	3506	Symbol::delete_package "safe::$_"
2075	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);
2076		3508
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	3509	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	3510	delete $INC{"cf.pm"};
		3511	delete $INC{"cf/pod.pm"};
2082		3512
2083	# don't, removes xs symbols, too,	3513	# don't, removes xs symbols, too,
2084	# and global variables created in xs	3514	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	3515	#Symbol::delete_package __PACKAGE__;
2086		3516
2087	# reload cf.pm	3517	warn "unload completed, starting to reload now";
		3518
2088	warn "reloading cf.pm";	3519	warn "reloading cf.pm";
2089	require cf;	3520	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3521	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		3522
2092	# load config and database again	3523	warn "loading config and database again";
2093	cf::cfg_load;	3524	cf::reload_config;
2094	cf::db_load;
2095		3525
2096	# load extensions
2097	warn "load extensions";	3526	warn "loading extensions";
2098	cf::load_extensions;	3527	cf::load_extensions;
2099		3528
2100	# reattach attachments to objects	3529	warn "reattaching attachments to objects/players";
2101	warn "reattach";	3530	_global_reattach; # objects, sockets
2102	_global_reattach;	3531	warn "reattaching attachments to maps";
2103	};	3532	reattach $_ for values %MAP;
		3533	warn "reattaching attachments to players";
		3534	reattach $_ for values %PLAYER;
2104		3535
2105	if ($@) {	3536	warn "leaving sync_job";
		3537
		3538	1
		3539	} or do {
2106	warn $@;	3540	warn $@;
2107	warn "error while reloading, exiting.";	3541	warn "error while reloading, exiting.";
2108	exit 1;	3542	exit 1;
2109	}	3543	};
2110		3544
2111	warn "reloaded successfully";	3545	warn "reloaded";
2112	};	3546	};
2113		3547
2114	#############################################################################	3548	our $RELOAD_WATCHER; # used only during reload
2115		3549
2116	unless ($LINK_MAP) {	3550	sub reload_perl() {
2117	$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.
2118		3553
2119	$LINK_MAP->width (41);	3554	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2120	$LINK_MAP->height (41);	3555	undef $RELOAD_WATCHER;
2121	$LINK_MAP->alloc;	3556	do_reload_perl;
2122	$LINK_MAP->path ("{link}");	3557	};
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,
2129	cb => sub {
2130	$_[0]->w->cancel;
2131
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});
2150
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3558	}
2156
2157	register "<global>", __PACKAGE__;
2158		3559
2159	register_command "reload" => sub {	3560	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3561	my ($who, $arg) = @_;
2161		3562
2162	if ($who->flag (FLAG_WIZ)) {	3563	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3564	$who->message ("reloading server.");
		3565	async {
		3566	$Coro::current->{desc} = "perl_reload";
		3567	reload_perl;
		3568	};
2166	}	3569	}
2167	};	3570	};
2168		3571
2169	unshift @INC, $LIBDIR;	3572	unshift @INC, $LIBDIR;
2170		3573
2171	$TICK_WATCHER = Event->timer (	3574	my $bug_warning = 0;
2172	reentrant => 0,	3575
2173	prio => 0,	3576	our @WAIT_FOR_TICK;
2174	at => $NEXT_TICK || $TICK,	3577	our @WAIT_FOR_TICK_BEGIN;
2175	data => WF_AUTOCANCEL,	3578
2176	cb => sub {	3579	sub wait_for_tick {
		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
2177	cf::server_tick; # one server iteration	3606	cf::server_tick; # one server iteration
		3607
2178	$RUNTIME += $TICK;	3608	$RUNTIME += $TICK;
2179	$NEXT_TICK += $TICK;	3609	$NEXT_TICK = $_[0]->at;
2180		3610
2181	# if we are delayed by four ticks or more, skip them all	3611	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2182	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3612	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2183		3613	Coro::async_pool {
2184	$TICK_WATCHER->at ($NEXT_TICK);	3614	$Coro::current->{desc} = "runtime saver";
2185	$TICK_WATCHER->start;
2186	},
2187	);
2188
2189	IO::AIO::max_poll_time $TICK * 0.2;
2190
2191	Event->io (
2192	fd => IO::AIO::poll_fileno,
2193	poll => 'r',
2194	prio => 5,
2195	data => WF_AUTOCANCEL,
2196	cb => \&IO::AIO::poll_cb,
2197	);
2198
2199	Event->timer (
2200	data => WF_AUTOCANCEL,
2201	after => 0,
2202	interval => 10,
2203	cb => sub {
2204	(Coro::unblock_sub {
2205	write_runtime	3615	write_runtime
2206	or warn "ERROR: unable to write runtime file: $!";	3616	or warn "ERROR: unable to write runtime file: $!";
2207	})->();	3617	};
2208	},	3618	}
2209	);	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;
2210		3725
2211	END { cf::emergency_save }	3726	END { cf::emergency_save }
2212		3727
2213	1	3728	1
2214		3729

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