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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 2007 UTC vs.
Revision 1.398 by root, Wed Dec 5 11:08:34 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.1 ();
		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::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS 2.01 ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
27		42
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
30		45
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		47
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		49
35	our %COMMAND = ();	50	our %COMMAND = ();
36	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
38		58
		59	our $RELOAD; # number of reloads so far
39	our @EVENT;	60	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		61
42	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	78	our $NEXT_TICK;
45	our $NOW;	79	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;
51		92
52	our %MAP; # all maps	93	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	94	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	95	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	96
		97	# used to convert map paths into valid unix filenames by replacing / by ∕
		98	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		99
		100	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		101	our $LOADAVG; # same thing, but with alpha-smoothing
		102	our $tick_start; # for load detecting purposes
56		103
57	binmode STDOUT;	104	binmode STDOUT;
58	binmode STDERR;	105	binmode STDERR;
59		106
60	# read virtual server time, if available	107	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	108	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	109	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	110	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	111	$RUNTIME = <$fh> + 0.;
65	}	112	}
66		113
67	mkdir cf::localdir;	114	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	115	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		116
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	117	our $EMERGENCY_POSITION;
		118
		119	sub cf::map::normalise;
76		120
77	#############################################################################	121	#############################################################################
78		122
79	=head2 GLOBAL VARIABLES	123	=head2 GLOBAL VARIABLES
80		124
…		…
87	=item $cf::RUNTIME	131	=item $cf::RUNTIME
88		132
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	133	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	134	every server tick.
91		135
92	=item $cf::LIBDIR	136	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		137	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		138	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		139
94	The perl library directory, where extensions and cf-specific modules can	140	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	141	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		142	unique-items directory, player file directory, random maps directory and
		143	database environment.
96		144
97	=item $cf::NOW	145	=item $cf::NOW
98		146
99	The time of the last (current) server tick.	147	The time of the last (current) server tick.
100		148
101	=item $cf::TICK	149	=item $cf::TICK
102		150
103	The interval between server ticks, in seconds.	151	The interval between server ticks, in seconds.
104		152
		153	=item $cf::LOADAVG
		154
		155	The current CPU load on the server (alpha-smoothed), as a value between 0
		156	(none) and 1 (overloaded), indicating how much time is spent on processing
		157	objects per tick. Healthy values are < 0.5.
		158
		159	=item $cf::LOAD
		160
		161	The raw value load value from the last tick.
		162
105	=item %cf::CFG	163	=item %cf::CFG
106		164
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	165	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	166	from wherever your confdir points to.
		167
		168	=item cf::wait_for_tick, cf::wait_for_tick_begin
		169
		170	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		171	returns directly I<after> the tick processing (and consequently, can only wake one process
		172	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		173
		174	=item @cf::INVOKE_RESULTS
		175
		176	This array contains the results of the last C<invoke ()> call. When
		177	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		178	that call.
109		179
110	=back	180	=back
111		181
112	=cut	182	=cut
113		183
114	BEGIN {	184	BEGIN {
115	*CORE::GLOBAL::warn = sub {	185	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	186	my $msg = join "", @_;
117	utf8::encode $msg;
118		187
119	$msg .= "\n"	188	$msg .= "\n"
120	unless $msg =~ /\n$/;	189	unless $msg =~ /\n$/;
121		190
		191	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		192
122	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
123	};	194	};
124	}	195	}
125		196
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		204
133	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	206	# within the Safe compartment.
135	for my $pkg (qw(	207	for my $pkg (qw(
136	cf::global cf::attachable	208	cf::global cf::attachable
…		…
141	)) {	213	)) {
142	no strict 'refs';	214	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	215	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	216	}
145		217
146	$Event::DIED = sub {	218	$EV::DIED = sub {
147	warn "error in event callback: @_";	219	warn "error in event callback: @_";
148	};	220	};
149		221
150	my %ext_pkg;	222	#############################################################################
151	my @exts;
152	my @hook;
153		223
154	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
155		225
156	=over 4	226	=over 4
157		227
158	=cut	228	=item dumpval $ref
159		229
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	230	=cut
161		231
		232	sub dumpval {
		233	eval {
		234	local $SIG{__DIE__};
		235	my $d;
		236	if (1) {
		237	$d = new Data::Dumper([$_[0]], ["*var"]);
		238	$d->Terse(1);
		239	$d->Indent(2);
		240	$d->Quotekeys(0);
		241	$d->Useqq(1);
		242	#$d->Bless(...);
		243	$d->Seen($_[1]) if @_ > 1;
		244	$d = $d->Dump();
		245	}
		246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		247	$d
		248	} || "[unable to dump $_[0]: '$@']";
		249	}
		250
162	=item $ref = cf::from_json $json	251	=item $ref = cf::decode_json $json
163		252
164	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
165		254
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	255	=item $json = cf::encode_json $ref
174		256
175	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
176		258
177	=cut	259	=cut
178		260
179	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	262
181	JSON::Syck::Dump $_[0]	263	sub encode_json($) { $json_coder->encode ($_[0]) }
182	}	264	sub decode_json($) { $json_coder->decode ($_[0]) }
183		265
184	=item cf::lock_wait $string	266	=item cf::lock_wait $string
185		267
186	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
187		269
…		…
190	Wait until the given lock is available and then acquires it and returns	272	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,	273	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	274	for example when the coroutine gets canceled), the lock is automatically
193	returned.	275	returned.
194		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
195	Lock names should begin with a unique identifier (for example, cf::map::find	280	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	281	uses map_find and cf::map::load uses map_load).
197		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
		286
198	=cut	287	=cut
199		288
200	our %LOCK;	289	our %LOCK;
		290	our %LOCKER;#d#
201		291
202	sub lock_wait($) {	292	sub lock_wait($) {
203	my ($key) = @_;	293	my ($key) = @_;
		294
		295	if ($LOCKER{$key} == $Coro::current) {#d#
		296	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		297	return;#d#
		298	}#d#
204		299
205	# wait for lock, if any	300	# wait for lock, if any
206	while ($LOCK{$key}) {	301	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	302	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	303	Coro::schedule;
…		…
214		309
215	# wait, to be sure we are not locked	310	# wait, to be sure we are not locked
216	lock_wait $key;	311	lock_wait $key;
217		312
218	$LOCK{$key} = [];	313	$LOCK{$key} = [];
		314	$LOCKER{$key} = $Coro::current;#d#
219		315
220	Coro::guard {	316	Coro::guard {
		317	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	318	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	319	$_->ready for @{ delete $LOCK{$key} };
223	}	320	}
224	}	321	}
225		322
226	=item cf::async { BLOCK }	323	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) = @_;	324	my ($key) = @_;
235		325
236	Coro::async {	326	! ! $LOCK{$key}
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}	327	}
241		328
242	sub freeze_mainloop {	329	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	330	return unless $TICK_WATCHER->is_active;
244		331
245	my $guard = Coro::guard { $TICK_WATCHER->start };	332	my $guard = Coro::guard {
		333	$TICK_WATCHER->start;
		334	};
246	$TICK_WATCHER->stop;	335	$TICK_WATCHER->stop;
247	$guard	336	$guard
248	}	337	}
249		338
		339	=item cf::periodic $interval, $cb
		340
		341	Like EV::periodic, but randomly selects a starting point so that the actions
		342	get spread over timer.
		343
		344	=cut
		345
		346	sub periodic($$) {
		347	my ($interval, $cb) = @_;
		348
		349	my $start = rand List::Util::min 180, $interval;
		350
		351	EV::periodic $start, $interval, 0, $cb
		352	}
		353
		354	=item cf::get_slot $time[, $priority[, $name]]
		355
		356	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		357	This call blocks and returns only when you have at least C<$time> seconds
		358	of cpu time till the next tick. The slot is only valid till the next cede.
		359
		360	The optional C<$name> can be used to identify the job to run. It might be
		361	used for statistical purposes and should identify the same time-class.
		362
		363	Useful for short background jobs.
		364
		365	=cut
		366
		367	our @SLOT_QUEUE;
		368	our $SLOT_QUEUE;
		369
		370	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		371	$SLOT_QUEUE = Coro::async {
		372	$Coro::current->desc ("timeslot manager");
		373
		374	my $signal = new Coro::Signal;
		375
		376	while () {
		377	next_job:
		378	my $avail = cf::till_tick;
		379	if ($avail > 0.01) {
		380	for (0 .. $#SLOT_QUEUE) {
		381	if ($SLOT_QUEUE[$_][0] < $avail) {
		382	my $job = splice @SLOT_QUEUE, $_, 1, ();
		383	$job->[2]->send;
		384	Coro::cede;
		385	goto next_job;
		386	}
		387	}
		388	}
		389
		390	if (@SLOT_QUEUE) {
		391	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		392	push @cf::WAIT_FOR_TICK, $signal;
		393	$signal->wait;
		394	} else {
		395	Coro::schedule;
		396	}
		397	}
		398	};
		399
		400	sub get_slot($;$$) {
		401	my ($time, $pri, $name) = @_;
		402
		403	$time = $TICK * .6 if $time > $TICK * .6;
		404	my $sig = new Coro::Signal;
		405
		406	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		407	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		408	$SLOT_QUEUE->ready;
		409	$sig->wait;
		410	}
		411
		412	=item cf::async { BLOCK }
		413
		414	Currently the same as Coro::async_pool, meaning you cannot use
		415	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		416	thing you are allowed to do is call C<prio> on it.
		417
		418	=cut
		419
		420	BEGIN { *async = \&Coro::async_pool }
		421
250	=item cf::sync_job { BLOCK }	422	=item cf::sync_job { BLOCK }
251		423
252	The design of crossfire+ requires that the main coro ($Coro::main) is	424	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	425	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	426	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		427	acceptable.
255		428
256	If it must be done, put the blocking parts into C<sync_job>. This will run	429	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	430	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	431	server will be frozen during this time, so the block should either finish
259	fast or be very important.	432	fast or be very important.
…		…
262		435
263	sub sync_job(&) {	436	sub sync_job(&) {
264	my ($job) = @_;	437	my ($job) = @_;
265		438
266	if ($Coro::current == $Coro::main) {	439	if ($Coro::current == $Coro::main) {
		440	my $time = EV::time;
		441
267	# this is the main coro, too bad, we have to block	442	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	443	# till the operation succeeds, freezing the server :/
269		444
		445	LOG llevError, Carp::longmess "sync job";#d#
		446
270	# TODO: use suspend/resume instead	447	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	448	# (but this is cancel-safe)
272	my $freeze_guard = freeze_mainloop;	449	my $freeze_guard = freeze_mainloop;
273		450
274	my $busy = 1;	451	my $busy = 1;
275	my @res;	452	my @res;
276		453
277	(Coro::async {	454	(async {
		455	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	456	@res = eval { $job->() };
279	warn $@ if $@;	457	warn $@ if $@;
280	undef $busy;	458	undef $busy;
281	})->prio (Coro::PRIO_MAX);	459	})->prio (Coro::PRIO_MAX);
282		460
283	while ($busy) {	461	while ($busy) {
		462	if (Coro::nready) {
284	Coro::cede_notself;	463	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	464	} else {
		465	EV::loop EV::LOOP_ONESHOT;
286	}	466	}
		467	}
		468
		469	$time = EV::time - $time;
		470
		471	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		472	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		473
		474	$tick_start += $time; # do not account sync jobs to server load
287		475
288	wantarray ? @res : $res[0]	476	wantarray ? @res : $res[0]
289	} else {	477	} else {
290	# we are in another coroutine, how wonderful, everything just works	478	# we are in another coroutine, how wonderful, everything just works
291		479
292	$job->()	480	$job->()
293	}	481	}
294	}	482	}
295		483
296	=item $coro = cf::coro { BLOCK }	484	=item $coro = cf::async_ext { BLOCK }
297		485
298	Creates and returns a new coro. This coro is automcatially being canceled	486	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	487	extension calling this is being unloaded.
300		488
301	=cut	489	=cut
302		490
303	sub coro(&) {	491	sub async_ext(&) {
304	my $cb = shift;	492	my $cb = shift;
305		493
306	my $coro = &cf::async ($cb);	494	my $coro = &Coro::async ($cb);
307		495
308	$coro->on_destroy (sub {	496	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	497	delete $EXT_CORO{$coro+0};
310	});	498	});
311	$EXT_CORO{$coro+0} = $coro;	499	$EXT_CORO{$coro+0} = $coro;
312		500
313	$coro	501	$coro
314	}	502	}
315		503
316	sub write_runtime {	504	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		505
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	506	Executes the given code block with the given arguments in a seperate
320	or return;	507	process, returning the results. Everything must be serialisable with
		508	Coro::Storable. May, of course, block. Note that the executed sub may
		509	never block itself or use any form of event handling.
321		510
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	511	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		512
326	aio_fsync $fh	513	sub fork_call(&@) {
327	and return;	514	my ($cb, @args) = @_;
328		515
329	close $fh	516	# we seemingly have to make a local copy of the whole thing,
330	or return;	517	# otherwise perl prematurely frees the stuff :/
		518	# TODO: investigate and fix (likely this will be rather laborious)
331		519
332	aio_rename "$runtime~", $runtime	520	my @res = Coro::Util::fork_eval {
333	and return;	521	reset_signals;
		522	&$cb
		523	}, @args;
334		524
		525	wantarray ? @res : $res[-1]
		526	}
		527
		528	=item $value = cf::db_get $family => $key
		529
		530	Returns a single value from the environment database.
		531
		532	=item cf::db_put $family => $key => $value
		533
		534	Stores the given C<$value> in the family. It can currently store binary
		535	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		536
		537	=item $db = cf::db_table "name"
		538
		539	Create and/or open a new database table. The string must not be "db" and must be unique
		540	within each server.
		541
		542	=cut
		543
		544	sub db_table($) {
		545	my ($name) = @_;
		546	my $db = BDB::db_create $DB_ENV;
		547
		548	eval {
		549	$db->set_flags (BDB::CHKSUM);
		550
		551	utf8::encode $name;
		552	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		553	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		554	cf::cleanup "db_open(db): $!" if $!;
		555	};
		556	cf::cleanup "db_open(db): $@" if $@;
		557
		558	$db
		559	}
		560
		561	our $DB;
		562
		563	sub db_init {
		564	cf::sync_job {
		565	$DB ||= db_table "db";
		566	};
		567	}
		568
		569	sub db_get($$) {
		570	my $key = "$_[0]/$_[1]";
		571
		572	cf::sync_job {
		573	BDB::db_get $DB, undef, $key, my $data;
		574
		575	$! ? ()
		576	: $data
335	1	577	}
		578	}
		579
		580	sub db_put($$$) {
		581	BDB::dbreq_pri 4;
		582	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		583	}
		584
		585	=item cf::cache $id => [$paths...], $processversion => $process
		586
		587	Generic caching function that returns the value of the resource $id,
		588	caching and regenerating as required.
		589
		590	This function can block.
		591
		592	=cut
		593
		594	sub cache {
		595	my ($id, $src, $processversion, $process) = @_;
		596
		597	my $meta =
		598	join "\x00",
		599	$processversion,
		600	map {
		601	aio_stat $_
		602	and Carp::croak "$_: $!";
		603
		604	($_, (stat _)[7,9])
		605	} @$src;
		606
		607	my $dbmeta = db_get cache => "$id/meta";
		608	if ($dbmeta ne $meta) {
		609	# changed, we may need to process
		610
		611	my @data;
		612	my $md5;
		613
		614	for (0 .. $#$src) {
		615	0 <= aio_load $src->[$_], $data[$_]
		616	or Carp::croak "$src->[$_]: $!";
		617	}
		618
		619	# if processing is expensive, check
		620	# checksum first
		621	if (1) {
		622	$md5 =
		623	join "\x00",
		624	$processversion,
		625	map {
		626	cf::cede_to_tick;
		627	($src->[$_], Digest::MD5::md5_hex $data[$_])
		628	} 0.. $#$src;
		629
		630
		631	my $dbmd5 = db_get cache => "$id/md5";
		632	if ($dbmd5 eq $md5) {
		633	db_put cache => "$id/meta", $meta;
		634
		635	return db_get cache => "$id/data";
		636	}
		637	}
		638
		639	my $t1 = Time::HiRes::time;
		640	my $data = $process->(\@data);
		641	my $t2 = Time::HiRes::time;
		642
		643	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		644
		645	db_put cache => "$id/data", $data;
		646	db_put cache => "$id/md5" , $md5;
		647	db_put cache => "$id/meta", $meta;
		648
		649	return $data;
		650	}
		651
		652	db_get cache => "$id/data"
		653	}
		654
		655	=item cf::datalog type => key => value, ...
		656
		657	Log a datalog packet of the given type with the given key-value pairs.
		658
		659	=cut
		660
		661	sub datalog($@) {
		662	my ($type, %kv) = @_;
		663	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
336	}	664	}
337		665
338	=back	666	=back
339		667
340	=cut	668	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($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		669
462	#############################################################################	670	#############################################################################
463		671
464	=head2 ATTACHABLE OBJECTS	672	=head2 ATTACHABLE OBJECTS
465		673
…		…
467	attach callbacks/event handlers (a collection of which is called an "attachment")	675	attach callbacks/event handlers (a collection of which is called an "attachment")
468	to it. All such attachable objects support the following methods.	676	to it. All such attachable objects support the following methods.
469		677
470	In the following description, CLASS can be any of C<global>, C<object>	678	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	679	C<player>, C<client> or C<map> (i.e. the attachable objects in
472	crossfire+).	680	Deliantra).
473		681
474	=over 4	682	=over 4
475		683
476	=item $attachable->attach ($attachment, key => $value...)	684	=item $attachable->attach ($attachment, key => $value...)
477		685
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	799	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	800	our @CB_MAP = ();
593		801
594	my %attachment;	802	my %attachment;
595		803
		804	sub cf::attachable::thawer_merge {
		805	# simply override everything except _meta
		806	local $_[0]{_meta};
		807	%{$_[0]} = %{$_[1]};
		808	}
		809
596	sub _attach_cb($$$$) {	810	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	811	my ($registry, $event, $prio, $cb) = @_;
598		812
599	use sort 'stable';	813	use sort 'stable';
600		814
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	848	$registry = $CB_TYPE[$object_type] ||= [];
635		849
636	} elsif ($type eq "subtype") {	850	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	851	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	852	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	853	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		854
641	} elsif ($type eq "package") {	855	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	856	my $pkg = shift @arg;
643		857
644	while (my ($name, $id) = each %cb_id) {	858	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	887	_attach $registry, $klass, @attach;
674	}	888	}
675		889
676	$obj->{$name} = \%arg;	890	$obj->{$name} = \%arg;
677	} else {	891	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	892	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	893	}
680		894
681	$obj->{_attachment}{$name} = undef;	895	$obj->{_attachment}{$name} = undef;
682	}	896	}
683		897
…		…
685	if (ref $_[0]) {	899	if (ref $_[0]) {
686	_object_attach @_;	900	_object_attach @_;
687	} else {	901	} else {
688	_attach shift->_attach_registry, @_;	902	_attach shift->_attach_registry, @_;
689	}	903	}
		904	_recalc_want;
690	};	905	};
691		906
692	# all those should be optimised	907	# all those should be optimised
693	sub cf::attachable::detach {	908	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	909	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	912	delete $obj->{_attachment}{$name};
698	reattach ($obj);	913	reattach ($obj);
699	} else {	914	} else {
700	Carp::croak "cannot, currently, detach class attachments";	915	Carp::croak "cannot, currently, detach class attachments";
701	}	916	}
		917	_recalc_want;
702	};	918	};
703		919
704	sub cf::attachable::attached {	920	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	921	my ($obj, $name) = @_;
706		922
…		…
721	";	937	";
722	die if $@;	938	die if $@;
723	}	939	}
724		940
725	our $override;	941	our $override;
726	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	942	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
727		943
728	sub override {	944	sub override {
729	$override = 1;	945	$override = 1;
730	@invoke_results = ();	946	@INVOKE_RESULTS = (@_);
731	}	947	}
732		948
733	sub do_invoke {	949	sub do_invoke {
734	my $event = shift;	950	my $event = shift;
735	my $callbacks = shift;	951	my $callbacks = shift;
736		952
737	@invoke_results = ();	953	@INVOKE_RESULTS = ();
738		954
739	local $override;	955	local $override;
740		956
741	for (@$callbacks) {	957	for (@$callbacks) {
742	eval { &{$_->[1]} };	958	eval { &{$_->[1]} };
…		…
759		975
760	Generate an object-specific event with the given arguments.	976	Generate an object-specific event with the given arguments.
761		977
762	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	978	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	979	removed in future versions), and there is no public API to access override
764	results (if you must, access C<@cf::invoke_results> directly).	980	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		981
766	=back	982	=back
767		983
768	=cut	984	=cut
769		985
770	#############################################################################	986	#############################################################################
771	# object support	987	# object support
		988
		989	sub _object_equal($$);
		990	sub _object_equal($$) {
		991	my ($a, $b) = @_;
		992
		993	return 0 unless (ref $a) eq (ref $b);
		994
		995	if ("HASH" eq ref $a) {
		996	my @ka = keys %$a;
		997	my @kb = keys %$b;
		998
		999	return 0 if @ka != @kb;
		1000
		1001	for (0 .. $#ka) {
		1002	return 0 unless $ka[$_] eq $kb[$_];
		1003	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1004	}
		1005
		1006	} elsif ("ARRAY" eq ref $a) {
		1007
		1008	return 0 if @$a != @$b;
		1009
		1010	for (0 .. $#$a) {
		1011	return 0 unless _object_equal $a->[$_], $b->[$_];
		1012	}
		1013
		1014	} elsif ($a ne $b) {
		1015	return 0;
		1016	}
		1017
		1018	1
		1019	}
		1020
		1021	our $SLOW_MERGES;#d#
		1022	sub _can_merge {
		1023	my ($ob1, $ob2) = @_;
		1024
		1025	++$SLOW_MERGES;#d#
		1026
		1027	# we do the slow way here
		1028	return _object_equal $ob1, $ob2
		1029	}
772		1030
773	sub reattach {	1031	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	1032	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	1033	my ($obj) = @_;
		1034
		1035	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		1036
777	my $registry = $obj->registry;	1037	my $registry = $obj->registry;
778		1038
779	@$registry = ();	1039	@$registry = ();
780		1040
…		…
795	cf::attachable->attach (	1055	cf::attachable->attach (
796	prio => -1000000,	1056	prio => -1000000,
797	on_instantiate => sub {	1057	on_instantiate => sub {
798	my ($obj, $data) = @_;	1058	my ($obj, $data) = @_;
799		1059
800	$data = from_json $data;	1060	$data = decode_json $data;
801		1061
802	for (@$data) {	1062	for (@$data) {
803	my ($name, $args) = @$_;	1063	my ($name, $args) = @$_;
804		1064
805	$obj->attach ($name, %{$args || {} });	1065	$obj->attach ($name, %{$args || {} });
…		…
821	sub object_freezer_save {	1081	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1082	my ($filename, $rdata, $objs) = @_;
823		1083
824	sync_job {	1084	sync_job {
825	if (length $$rdata) {	1085	if (length $$rdata) {
		1086	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1087	warn sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1088	$decname, length $$rdata, scalar @$objs;
828		1089
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1090	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1091	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1092	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	1093	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	1094	close $fh;
834		1095
835	if (@$objs) {	1096	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1097	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	1098	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1099	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1100	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	1101	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	1102	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1103	aio_rename "$filename.pst~", "$filename.pst";
843	}	1104	}
844	} else {	1105	} else {
845	aio_unlink "$filename.pst";	1106	aio_unlink "$filename.pst";
…		…
851	}	1112	}
852	} else {	1113	} else {
853	aio_unlink $filename;	1114	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1115	aio_unlink "$filename.pst";
855	}	1116	}
856	}	1117	};
857	}	1118	}
858		1119
859	sub object_freezer_as_string {	1120	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1121	my ($rdata, $objs) = @_;
861		1122
…		…
873	or return;	1134	or return;
874		1135
875	unless (aio_stat "$filename.pst") {	1136	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1137	(aio_load "$filename.pst", $av) >= 0
877	or return;	1138	or return;
		1139
878	$av = eval { (Storable::thaw $av)->{objs} };	1140	my $st = eval { Coro::Storable::thaw $av };
		1141	$av = $st->{objs};
879	}	1142	}
880		1143
		1144	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1145	warn sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1146	$decname, length $data, scalar @{$av || []};
		1147
883	return ($data, $av);	1148	($data, $av)
884	}	1149	}
		1150
		1151	=head2 COMMAND CALLBACKS
		1152
		1153	=over 4
		1154
		1155	=cut
885		1156
886	#############################################################################	1157	#############################################################################
887	# command handling &c	1158	# command handling &c
888		1159
889	=item cf::register_command $name => \&callback($ob,$args);	1160	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1173	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1174	}
904		1175
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1176	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1177
907	Register a callbackf ro execution when the client sends an extcmd packet.	1178	Register a callback for execution when the client sends an (synchronous)
		1179	extcmd packet. Ext commands will be processed in the order they are
		1180	received by the server, like other user commands. The first argument is
		1181	the logged-in player. Ext commands can only be processed after a player
		1182	has logged in successfully.
908		1183
909	If the callback returns something, it is sent back as if reply was being	1184	If the callback returns something, it is sent back as if reply was being
910	called.	1185	called.
911		1186
		1187	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1188
		1189	Register a callback for execution when the client sends an (asynchronous)
		1190	exticmd packet. Exti commands are processed by the server as soon as they
		1191	are received, i.e. out of order w.r.t. other commands. The first argument
		1192	is a client socket. Exti commands can be received anytime, even before
		1193	log-in.
		1194
		1195	If the callback returns something, it is sent back as if reply was being
		1196	called.
		1197
912	=cut	1198	=cut
913		1199
914	sub register_extcmd {	1200	sub register_extcmd {
915	my ($name, $cb) = @_;	1201	my ($name, $cb) = @_;
916		1202
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1203	$EXTCMD{$name} = $cb;
		1204	}
		1205
		1206	sub register_exticmd {
		1207	my ($name, $cb) = @_;
		1208
		1209	$EXTICMD{$name} = $cb;
921	}	1210	}
922		1211
923	cf::player->attach (	1212	cf::player->attach (
924	on_command => sub {	1213	on_command => sub {
925	my ($pl, $name, $params) = @_;	1214	my ($pl, $name, $params) = @_;
…		…
934	cf::override;	1223	cf::override;
935	},	1224	},
936	on_extcmd => sub {	1225	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1226	my ($pl, $buf) = @_;
938		1227
939	my $msg = eval { from_json $buf };	1228	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1229
941	if (ref $msg) {	1230	if (ref $msg) {
		1231	my ($type, $reply, @payload) =
		1232	"ARRAY" eq ref $msg
		1233	? @$msg
		1234	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1235
		1236	my @reply;
		1237
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1238	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1239	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1240	}
		1241
		1242	$pl->ext_reply ($reply, @reply)
		1243	if $reply;
		1244
947	} else {	1245	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1246	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1247	}
950		1248
951	cf::override;	1249	cf::override;
952	},	1250	},
953	);	1251	);
954		1252
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1253	sub load_extensions {
		1254	cf::sync_job {
		1255	my %todo;
		1256
		1257	for my $path (<$LIBDIR/*.ext>) {
		1258	next unless -r $path;
		1259
		1260	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1261	my $base = $1;
		1262	my $pkg = $1;
		1263	$pkg =~ s/[^[:word:]]/_/g;
		1264	$pkg = "ext::$pkg";
		1265
		1266	open my $fh, "<:utf8", $path
		1267	or die "$path: $!";
		1268
		1269	my $source = do { local $/; <$fh> };
		1270
		1271	my %ext = (
		1272	path => $path,
		1273	base => $base,
		1274	pkg => $pkg,
		1275	);
		1276
		1277	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1278	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1279
		1280	$ext{source} =
		1281	"package $pkg; use strict; use utf8;\n"
		1282	. "#line 1 \"$path\"\n{\n"
		1283	. $source
		1284	. "\n};\n1";
		1285
		1286	$todo{$base} = \%ext;
		1287	}
		1288
		1289	my %done;
		1290	while (%todo) {
		1291	my $progress;
		1292
		1293	while (my ($k, $v) = each %todo) {
		1294	for (split /,\s*/, $v->{meta}{depends}) {
		1295	goto skip
		1296	unless exists $done{$_};
		1297	}
		1298
		1299	warn "... loading '$k' into '$v->{pkg}'\n";
		1300
		1301	unless (eval $v->{source}) {
		1302	my $msg = $@ ? "$v->{path}: $@\n"
		1303	: "$v->{base}: extension inactive.\n";
		1304
		1305	if (exists $v->{meta}{mandatory}) {
		1306	warn $msg;
		1307	warn "mandatory extension failed to load, exiting.\n";
		1308	exit 1;
		1309	}
		1310
		1311	warn $msg;
		1312	}
		1313
		1314	$done{$k} = delete $todo{$k};
		1315	push @EXTS, $v->{pkg};
		1316	$progress = 1;
		1317	}
		1318
		1319	skip:
		1320	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1321	unless $progress;
		1322	}
		1323	};
		1324	}
		1325
		1326	#############################################################################
		1327
		1328	=back
		1329
		1330	=head2 CORE EXTENSIONS
		1331
		1332	Functions and methods that extend core crossfire objects.
		1333
		1334	=cut
		1335
		1336	package cf::player;
		1337
		1338	use Coro::AIO;
		1339
		1340	=head3 cf::player
		1341
		1342	=over 4
		1343
		1344	=item cf::player::num_playing
		1345
		1346	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1347
		1348	=cut
		1349
		1350	sub num_playing {
		1351	scalar grep
		1352	$_->ob->map
		1353	&& !$_->hidden
		1354	&& !$_->ob->flag (cf::FLAG_WIZ),
		1355	cf::player::list
		1356	}
		1357
		1358	=item cf::player::find $login
		1359
		1360	Returns the given player object, loading it if necessary (might block).
		1361
		1362	=cut
		1363
		1364	sub playerdir($) {
		1365	"$PLAYERDIR/"
		1366	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1367	}
		1368
		1369	sub path($) {
		1370	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1371
		1372	(playerdir $login) . "/playerdata"
		1373	}
		1374
		1375	sub find_active($) {
		1376	$cf::PLAYER{$_[0]}
		1377	and $cf::PLAYER{$_[0]}->active
		1378	and $cf::PLAYER{$_[0]}
		1379	}
		1380
		1381	sub exists($) {
		1382	my ($login) = @_;
		1383
		1384	$cf::PLAYER{$login}
		1385	or cf::sync_job { !aio_stat path $login }
		1386	}
		1387
		1388	sub find($) {
		1389	return $cf::PLAYER{$_[0]} || do {
		1390	my $login = $_[0];
		1391
		1392	my $guard = cf::lock_acquire "user_find:$login";
		1393
		1394	$cf::PLAYER{$_[0]} || do {
		1395	# rename old playerfiles to new ones
		1396	#TODO: remove when no longer required
		1397	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1398	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1399	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1400	aio_unlink +(playerdir $login) . "/$login.pl";
		1401
		1402	my $f = new_from_file cf::object::thawer path $login
		1403	or return;
		1404
		1405	my $pl = cf::player::load_pl $f
		1406	or return;
		1407	local $cf::PLAYER_LOADING{$login} = $pl;
		1408	$f->resolve_delayed_derefs;
		1409	$cf::PLAYER{$login} = $pl
		1410	}
		1411	}
		1412	}
		1413
		1414	sub save($) {
		1415	my ($pl) = @_;
		1416
		1417	return if $pl->{deny_save};
		1418
		1419	my $path = path $pl;
		1420	my $guard = cf::lock_acquire "user_save:$path";
		1421
		1422	return if $pl->{deny_save};
		1423
		1424	aio_mkdir playerdir $pl, 0770;
		1425	$pl->{last_save} = $cf::RUNTIME;
		1426
		1427	$pl->save_pl ($path);
		1428	cf::cede_to_tick;
		1429	}
		1430
		1431	sub new($) {
		1432	my ($login) = @_;
		1433
		1434	my $self = create;
		1435
		1436	$self->ob->name ($login);
		1437	$self->{deny_save} = 1;
		1438
		1439	$cf::PLAYER{$login} = $self;
		1440
		1441	$self
		1442	}
		1443
		1444	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1445
		1446	=cut
		1447
		1448	sub send_msg {
		1449	my $ns = shift->ns
		1450	or return;
		1451	$ns->send_msg (@_);
		1452	}
		1453
		1454	=item $pl->quit_character
		1455
		1456	Nukes the player without looking back. If logged in, the connection will
		1457	be destroyed. May block for a long time.
		1458
		1459	=cut
		1460
		1461	sub quit_character {
		1462	my ($pl) = @_;
		1463
		1464	my $name = $pl->ob->name;
		1465
		1466	$pl->{deny_save} = 1;
		1467	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1468
		1469	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1470	$pl->deactivate;
		1471	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1472	$pl->ns->destroy if $pl->ns;
		1473
		1474	my $path = playerdir $pl;
		1475	my $temp = "$path~$cf::RUNTIME~deleting~";
		1476	aio_rename $path, $temp;
		1477	delete $cf::PLAYER{$pl->ob->name};
		1478	$pl->destroy;
		1479
		1480	my $prefix = qr<^~\Q$name\E/>;
		1481
		1482	# nuke player maps
		1483	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1484
		1485	IO::AIO::aio_rmtree $temp;
		1486	}
		1487
		1488	=item $pl->kick
		1489
		1490	Kicks a player out of the game. This destroys the connection.
		1491
		1492	=cut
		1493
		1494	sub kick {
		1495	my ($pl, $kicker) = @_;
		1496
		1497	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1498	$pl->killer ("kicked");
		1499	$pl->ns->destroy;
		1500	}
		1501
		1502	=item cf::player::list_logins
		1503
		1504	Returns am arrayref of all valid playernames in the system, can take a
		1505	while and may block, so not sync_job-capable, ever.
		1506
		1507	=cut
		1508
		1509	sub list_logins {
		1510	my $dirs = aio_readdir $PLAYERDIR
		1511	or return [];
		1512
		1513	my @logins;
		1514
		1515	for my $login (@$dirs) {
		1516	my $path = path $login;
		1517
		1518	# a .pst is a dead give-away for a valid player
		1519	unless (-e "$path.pst") {
		1520	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1521	aio_read $fh, 0, 512, my $buf, 0 or next;
		1522	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1523	}
		1524
		1525	utf8::decode $login;
		1526	push @logins, $login;
		1527	}
		1528
		1529	\@logins
		1530	}
		1531
		1532	=item $player->maps
		1533
		1534	Returns an arrayref of map paths that are private for this
		1535	player. May block.
		1536
		1537	=cut
		1538
		1539	sub maps($) {
		1540	my ($pl) = @_;
		1541
		1542	$pl = ref $pl ? $pl->ob->name : $pl;
		1543
		1544	my $files = aio_readdir playerdir $pl
		1545	or return;
		1546
		1547	my @paths;
		1548
		1549	for (@$files) {
		1550	utf8::decode $_;
		1551	next if /\.(?:pl|pst)$/;
		1552	next unless /^$PATH_SEP/o;
		1553
		1554	push @paths, cf::map::normalise "~$pl/$_";
		1555	}
		1556
		1557	\@paths
		1558	}
		1559
		1560	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1561
		1562	Expand crossfire pod fragments into protocol xml.
		1563
		1564	=cut
		1565
		1566	use re 'eval';
		1567
		1568	my $group;
		1569	my $interior; $interior = qr{
		1570	# match a pod interior sequence sans C<< >>
		1571	(?:
		1572	\ (.*?)\ (?{ $group = $^N })
		1573	| < (??{$interior}) >
		1574	)
		1575	}x;
		1576
		1577	sub expand_cfpod {
		1578	my ($self, $pod) = @_;
		1579
		1580	my $xml;
		1581
		1582	while () {
		1583	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1584	$group = $1;
		1585
		1586	$group =~ s/&/&amp;/g;
		1587	$group =~ s/</&lt;/g;
		1588
		1589	$xml .= $group;
		1590	} elsif ($pod =~ m%\G
		1591	([BCGHITU])
		1592	<
		1593	(?:
		1594	([^<>]*) (?{ $group = $^N })
		1595	| < $interior >
		1596	)
		1597	>
		1598	%gcsx
		1599	) {
		1600	my ($code, $data) = ($1, $group);
		1601
		1602	if ($code eq "B") {
		1603	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1604	} elsif ($code eq "I") {
		1605	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1606	} elsif ($code eq "U") {
		1607	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1608	} elsif ($code eq "C") {
		1609	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1610	} elsif ($code eq "T") {
		1611	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1612	} elsif ($code eq "G") {
		1613	my ($male, $female) = split /\|/, $data;
		1614	$data = $self->gender ? $female : $male;
		1615	$xml .= expand_cfpod ($self, $data);
		1616	} elsif ($code eq "H") {
		1617	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1618	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1619	"")
		1620	[$self->{hintmode}];
		1621	} else {
		1622	$xml .= "error processing '$code($data)' directive";
		1623	}
		1624	} else {
		1625	if ($pod =~ /\G(.+)/) {
		1626	warn "parse error while expanding $pod (at $1)";
		1627	}
		1628	last;
		1629	}
		1630	}
		1631
		1632	for ($xml) {
		1633	# create single paragraphs (very hackish)
		1634	s/(?<=\S)\n(?=\w)/ /g;
		1635
		1636	# compress some whitespace
		1637	s/\s+\n/\n/g; # ws line-ends
		1638	s/\n\n+/\n/g; # double lines
		1639	s/^\n+//; # beginning lines
		1640	s/\n+$//; # ending lines
		1641	}
		1642
		1643	$xml
		1644	}
		1645
		1646	no re 'eval';
		1647
		1648	sub hintmode {
		1649	$_[0]{hintmode} = $_[1] if @_ > 1;
		1650	$_[0]{hintmode}
		1651	}
		1652
		1653	=item $player->ext_reply ($msgid, @msg)
		1654
		1655	Sends an ext reply to the player.
		1656
		1657	=cut
		1658
		1659	sub ext_reply($$@) {
		1660	my ($self, $id, @msg) = @_;
		1661
		1662	$self->ns->ext_reply ($id, @msg)
		1663	}
		1664
		1665	=item $player->ext_msg ($type, @msg)
		1666
		1667	Sends an ext event to the client.
		1668
		1669	=cut
		1670
		1671	sub ext_msg($$@) {
		1672	my ($self, $type, @msg) = @_;
		1673
		1674	$self->ns->ext_msg ($type, @msg);
		1675	}
		1676
		1677	=head3 cf::region
		1678
		1679	=over 4
		1680
		1681	=cut
		1682
		1683	package cf::region;
		1684
		1685	=item cf::region::find_by_path $path
		1686
		1687	Tries to decuce the likely region for a map knowing only its path.
		1688
		1689	=cut
		1690
		1691	sub find_by_path($) {
962	my ($path) = @_;	1692	my ($path) = @_;
963		1693
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1694	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1695
970	warn "loading '$path' into '$pkg'\n";	1696	for my $region (list) {
971		1697	if ($region->{match} && $path =~ $region->{match}) {
972	open my $fh, "<:utf8", $path	1698	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1699	if $region->specificity > $specificity;
974		1700	}
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	# }	1701	}
1004		1702
1005	# remove commands	1703	$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	}	1704	}
1111		1705
1112	=back	1706	=back
1113
1114		1707
1115	=head3 cf::map	1708	=head3 cf::map
1116		1709
1117	=over 4	1710	=over 4
1118		1711
…		…
1121	package cf::map;	1714	package cf::map;
1122		1715
1123	use Fcntl;	1716	use Fcntl;
1124	use Coro::AIO;	1717	use Coro::AIO;
1125		1718
		1719	use overload
		1720	'""' => \&as_string,
		1721	fallback => 1;
		1722
1126	our $MAX_RESET = 3600;	1723	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1724	our $DEFAULT_RESET = 3000;
1128		1725
1129	sub generate_random_map {	1726	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1727	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1728	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1729	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1730	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1731	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1732	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1733	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1734	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1735	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1736	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1737	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1738	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1739	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1740	(cf::region::find $rmp->{region}), $rmp->{custom}
		1741	)
		1742	}
		1743
		1744	=item cf::map->register ($regex, $prio)
		1745
		1746	Register a handler for the map path matching the given regex at the
		1747	givne priority (higher is better, built-in handlers have priority 0, the
		1748	default).
		1749
		1750	=cut
		1751
		1752	sub register {
		1753	my (undef, $regex, $prio) = @_;
		1754	my $pkg = caller;
		1755
		1756	no strict;
		1757	push @{"$pkg\::ISA"}, __PACKAGE__;
		1758
		1759	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1760	}
		1761
		1762	# also paths starting with '/'
		1763	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1764
		1765	sub thawer_merge {
		1766	my ($self, $merge) = @_;
		1767
		1768	# we have to keep some variables in memory intact
		1769	local $self->{path};
		1770	local $self->{load_path};
		1771
		1772	$self->SUPER::thawer_merge ($merge);
		1773	}
		1774
		1775	sub normalise {
		1776	my ($path, $base) = @_;
		1777
		1778	$path = "$path"; # make sure its a string
		1779
		1780	$path =~ s/\.map$//;
		1781
		1782	# map plan:
		1783	#
		1784	# /! non-realised random map exit (special hack!)
		1785	# {... are special paths that are not being touched
		1786	# ?xxx/... are special absolute paths
		1787	# ?random/... random maps
		1788	# /... normal maps
		1789	# ~user/... per-player map of a specific user
		1790
		1791	$path =~ s/$PATH_SEP/\//go;
		1792
		1793	# treat it as relative path if it starts with
		1794	# something that looks reasonable
		1795	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1796	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1797
		1798	$base =~ s{[^/]+/?$}{};
		1799	$path = "$base/$path";
		1800	}
		1801
		1802	for ($path) {
		1803	redo if s{//}{/};
		1804	redo if s{/\.?/}{/};
		1805	redo if s{/[^/]+/\.\./}{/};
		1806	}
		1807
		1808	$path
		1809	}
		1810
		1811	sub new_from_path {
		1812	my (undef, $path, $base) = @_;
		1813
		1814	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1815
		1816	$path = normalise $path, $base;
		1817
		1818	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1819	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1820	my $self = bless cf::map::new, $pkg;
		1821	$self->{path} = $path; $self->path ($path);
		1822	$self->init; # pass $1 etc.
		1823	return $self;
		1824	}
		1825	}
		1826
		1827	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1828	()
		1829	}
		1830
		1831	sub init {
		1832	my ($self) = @_;
		1833
		1834	$self
		1835	}
		1836
		1837	sub as_string {
		1838	my ($self) = @_;
		1839
		1840	"$self->{path}"
		1841	}
		1842
		1843	# the displayed name, this is a one way mapping
		1844	sub visible_name {
		1845	&as_string
		1846	}
		1847
		1848	# the original (read-only) location
		1849	sub load_path {
		1850	my ($self) = @_;
		1851
		1852	"$MAPDIR/$self->{path}.map"
		1853	}
		1854
		1855	# the temporary/swap location
		1856	sub save_path {
		1857	my ($self) = @_;
		1858
		1859	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1860	"$TMPDIR/$path.map"
		1861	}
		1862
		1863	# the unique path, undef == no special unique path
		1864	sub uniq_path {
		1865	my ($self) = @_;
		1866
		1867	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1868	"$UNIQUEDIR/$path"
1146	}	1869	}
1147		1870
1148	# and all this just because we cannot iterate over	1871	# and all this just because we cannot iterate over
1149	# all maps in C++...	1872	# all maps in C++...
1150	sub change_all_map_light {	1873	sub change_all_map_light {
…		…
1152		1875
1153	$_->change_map_light ($change)	1876	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1877	for grep $_->outdoor, values %cf::MAP;
1155	}	1878	}
1156		1879
		1880	sub decay_objects {
		1881	my ($self) = @_;
		1882
		1883	return if $self->{deny_reset};
		1884
		1885	$self->do_decay_objects;
		1886	}
		1887
		1888	sub unlink_save {
		1889	my ($self) = @_;
		1890
		1891	utf8::encode (my $save = $self->save_path);
		1892	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1894	}
		1895
1157	sub try_load_header($) {	1896	sub load_header_from($) {
1158	my ($path) = @_;	1897	my ($self, $path) = @_;
1159		1898
1160	utf8::encode $path;	1899	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1900	my $f = new_from_file cf::object::thawer $path
1162	or return;	1901	or return;
1163		1902
1164	my $map = cf::map::new	1903	$self->_load_header ($f)
1165	or return;	1904	or return;
1166		1905
1167	# for better error messages only, will be overwritten	1906	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	1907	$f->resolve_delayed_derefs;
1169		1908
1170	$map->load_header ($path)	1909	$self->{load_path} = $path;
		1910
		1911	1
		1912	}
		1913
		1914	sub load_header_orig {
		1915	my ($self) = @_;
		1916
		1917	$self->load_header_from ($self->load_path)
		1918	}
		1919
		1920	sub load_header_temp {
		1921	my ($self) = @_;
		1922
		1923	$self->load_header_from ($self->save_path)
		1924	}
		1925
		1926	sub prepare_temp {
		1927	my ($self) = @_;
		1928
		1929	$self->last_access ((delete $self->{last_access})
		1930	|| $cf::RUNTIME); #d#
		1931	# safety
		1932	$self->{instantiate_time} = $cf::RUNTIME
		1933	if $self->{instantiate_time} > $cf::RUNTIME;
		1934	}
		1935
		1936	sub prepare_orig {
		1937	my ($self) = @_;
		1938
		1939	$self->{load_original} = 1;
		1940	$self->{instantiate_time} = $cf::RUNTIME;
		1941	$self->last_access ($cf::RUNTIME);
		1942	$self->instantiate;
		1943	}
		1944
		1945	sub load_header {
		1946	my ($self) = @_;
		1947
		1948	if ($self->load_header_temp) {
		1949	$self->prepare_temp;
		1950	} else {
		1951	$self->load_header_orig
1171	or return;	1952	or return;
		1953	$self->prepare_orig;
		1954	}
1172		1955
1173	$map->{load_path} = $path;	1956	$self->{deny_reset} = 1
		1957	if $self->no_reset;
1174		1958
1175	$map	1959	$self->default_region (cf::region::find_by_path $self->{path})
		1960	unless $self->default_region;
		1961
		1962	1
1176	}	1963	}
1177		1964
1178	sub find;	1965	sub find;
1179	sub find {	1966	sub find {
1180	my ($path, $origin) = @_;	1967	my ($path, $origin) = @_;
1181		1968
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1969	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1970
		1971	cf::lock_wait "map_data:$path";#d#remove
1187	cf::lock_wait "map_find:$key";	1972	cf::lock_wait "map_find:$path";
1188		1973
1189	$cf::MAP{$key} || do {	1974	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1975	my $guard1 = cf::lock_acquire "map_find:$path";
		1976	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1191		1977
1192	# do it the slow way	1978	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;	1979	or return;
1211		1980
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;	1981	$map->{last_save} = $cf::RUNTIME;
1224		1982
1225	Coro::cede;	1983	$map->load_header
		1984	or return;
1226		1985
1227	if ($map->should_reset) {	1986	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1987	# doing this can freeze the server in a sync job, obviously
		1988	#$cf::WAIT_FOR_TICK->wait;
		1989	undef $guard1;
		1990	undef $guard2;
1228	$map->reset;	1991	$map->reset;
1229	undef $guard;
1230	$map = find $path	1992	return find $path;
1231	or return;
1232	}	1993	}
1233		1994
1234	$cf::MAP{$key} = $map	1995	$cf::MAP{$path} = $map
1235	}	1996	}
1236	}	1997	}
		1998
		1999	sub pre_load { }
		2000	sub post_load { }
1237		2001
1238	sub load {	2002	sub load {
1239	my ($self) = @_;	2003	my ($self) = @_;
1240		2004
		2005	local $self->{deny_reset} = 1; # loading can take a long time
		2006
1241	my $path = $self->{path};	2007	my $path = $self->{path};
		2008
		2009	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2010	my $guard = cf::lock_acquire "map_data:$path";
1243		2011
		2012	return unless $self->valid;
1244	return if $self->in_memory != cf::MAP_SWAPPED;	2013	return unless $self->in_memory == cf::MAP_SWAPPED;
1245		2014
1246	$self->in_memory (cf::MAP_LOADING);	2015	$self->in_memory (cf::MAP_LOADING);
1247		2016
1248	$self->alloc;	2017	$self->alloc;
1249	$self->load_objects ($self->{load_path}, 1)	2018
		2019	$self->pre_load;
		2020	cf::cede_to_tick;
		2021
		2022	my $f = new_from_file cf::object::thawer $self->{load_path};
		2023	$f->skip_block;
		2024	$self->_load_objects ($f)
1250	or return;	2025	or return;
1251		2026
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2027	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	2028	if delete $self->{load_original};
1254		2029
1255	if (my $uniq = $path->uniq_path) {	2030	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	2031	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	2032	unless (aio_stat $uniq) {
		2033	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	2034	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	2035	$self->_load_objects ($f);
		2036	$f->resolve_delayed_derefs;
		2037	}
1260	}	2038	}
1261	}	2039	}
1262		2040
1263	Coro::cede;	2041	$f->resolve_delayed_derefs;
1264		2042
		2043	cf::cede_to_tick;
1265	# now do the right thing for maps	2044	# now do the right thing for maps
1266	$self->link_multipart_objects;	2045	$self->link_multipart_objects;
1267
1268	if ($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)	2046	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	2047	unless $self->difficulty;
		2048	cf::cede_to_tick;
		2049
		2050	unless ($self->{deny_activate}) {
		2051	$self->decay_objects;
		2052	$self->fix_auto_apply;
		2053	$self->update_buttons;
		2054	cf::cede_to_tick;
		2055	$self->set_darkness_map;
		2056	cf::cede_to_tick;
1278	$self->activate;	2057	$self->activate;
1279	}	2058	}
1280		2059
1281	Coro::cede;	2060	$self->{last_save} = $cf::RUNTIME;
		2061	$self->last_access ($cf::RUNTIME);
1282		2062
1283	$self->in_memory (cf::MAP_IN_MEMORY);	2063	$self->in_memory (cf::MAP_IN_MEMORY);
		2064	}
		2065
		2066	$self->post_load;
		2067	}
		2068
		2069	sub customise_for {
		2070	my ($self, $ob) = @_;
		2071
		2072	return find "~" . $ob->name . "/" . $self->{path}
		2073	if $self->per_player;
		2074
		2075	# return find "?party/" . $ob->name . "/" . $self->{path}
		2076	# if $self->per_party;
		2077
		2078	$self
		2079	}
		2080
		2081	# find and load all maps in the 3x3 area around a map
		2082	sub load_neighbours {
		2083	my ($map) = @_;
		2084
		2085	my @neigh; # diagonal neighbours
		2086
		2087	for (0 .. 3) {
		2088	my $neigh = $map->tile_path ($_)
		2089	or next;
		2090	$neigh = find $neigh, $map
		2091	or next;
		2092	$neigh->load;
		2093
		2094	push @neigh,
		2095	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2096	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2097	}
		2098
		2099	for (grep defined $_->[0], @neigh) {
		2100	my ($path, $origin) = @$_;
		2101	my $neigh = find $path, $origin
		2102	or next;
		2103	$neigh->load;
		2104	}
1284	}	2105	}
1285		2106
1286	sub find_sync {	2107	sub find_sync {
1287	my ($path, $origin) = @_;	2108	my ($path, $origin) = @_;
1288		2109
1289	cf::sync_job { cf::map::find $path, $origin }	2110	cf::sync_job { find $path, $origin }
1290	}	2111	}
1291		2112
1292	sub do_load_sync {	2113	sub do_load_sync {
1293	my ($map) = @_;	2114	my ($map) = @_;
1294		2115
		2116	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2117	if $Coro::current == $Coro::main;
		2118
1295	cf::sync_job { $map->load };	2119	cf::sync_job { $map->load };
		2120	}
		2121
		2122	our %MAP_PREFETCH;
		2123	our $MAP_PREFETCHER = undef;
		2124
		2125	sub find_async {
		2126	my ($path, $origin, $load) = @_;
		2127
		2128	$path = normalise $path, $origin && $origin->{path};
		2129
		2130	if (my $map = $cf::MAP{$path}) {
		2131	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2132	}
		2133
		2134	$MAP_PREFETCH{$path} |= $load;
		2135
		2136	$MAP_PREFETCHER ||= cf::async {
		2137	$Coro::current->{desc} = "map prefetcher";
		2138
		2139	while (%MAP_PREFETCH) {
		2140	while (my ($k, $v) = each %MAP_PREFETCH) {
		2141	if (my $map = find $k) {
		2142	$map->load if $v;
		2143	}
		2144
		2145	delete $MAP_PREFETCH{$k};
		2146	}
		2147	}
		2148	undef $MAP_PREFETCHER;
		2149	};
		2150	$MAP_PREFETCHER->prio (6);
		2151
		2152	()
1296	}	2153	}
1297		2154
1298	sub save {	2155	sub save {
1299	my ($self) = @_;	2156	my ($self) = @_;
1300		2157
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	2158	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2159
1303	$self->{last_save} = $cf::RUNTIME;	2160	$self->{last_save} = $cf::RUNTIME;
1304		2161
1305	return unless $self->dirty;	2162	return unless $self->dirty;
1306		2163
1307	my $save = $self->{path}->save_path; utf8::encode $save;	2164	my $save = $self->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2165	my $uniq = $self->uniq_path; utf8::encode $uniq;
1309		2166
1310	$self->{load_path} = $save;	2167	$self->{load_path} = $save;
1311		2168
1312	return if $self->{deny_save};	2169	return if $self->{deny_save};
1313		2170
1314	local $self->{last_access} = $self->last_access;#d#	2171	local $self->{last_access} = $self->last_access;#d#
1315		2172
		2173	cf::async {
		2174	$Coro::current->{desc} = "map player save";
		2175	$_->contr->save for $self->players;
		2176	};
		2177
1316	if ($uniq) {	2178	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2179	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	2180	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	2181	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2182	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	2183	}
1322	}	2184	}
1323		2185
1324	sub swap_out {	2186	sub swap_out {
1325	my ($self) = @_;	2187	my ($self) = @_;
1326		2188
1327	# save first because save cedes	2189	# save first because save cedes
1328	$self->save;	2190	$self->save;
1329		2191
1330	my $lock = cf::lock_acquire "map_data:" . $self->path;	2192	my $lock = cf::lock_acquire "map_data:$self->{path}";
1331		2193
1332	return if $self->players;	2194	return if $self->players;
1333	return if $self->in_memory != cf::MAP_IN_MEMORY;	2195	return if $self->in_memory != cf::MAP_IN_MEMORY;
1334	return if $self->{deny_save};	2196	return if $self->{deny_save};
1335		2197
		2198	$self->in_memory (cf::MAP_SWAPPED);
		2199
		2200	$self->deactivate;
		2201	$_->clear_links_to ($self) for values %cf::MAP;
1336	$self->clear;	2202	$self->clear;
1337	$self->in_memory (cf::MAP_SWAPPED);
1338	}	2203	}
1339		2204
1340	sub reset_at {	2205	sub reset_at {
1341	my ($self) = @_;	2206	my ($self) = @_;
1342		2207
1343	# TODO: safety, remove and allow resettable per-player maps	2208	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};
1345	return 1e99 if $self->{deny_reset};	2209	return 1e99 if $self->{deny_reset};
1346		2210
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2211	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2212	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		2213
…		…
1354	my ($self) = @_;	2218	my ($self) = @_;
1355		2219
1356	$self->reset_at <= $cf::RUNTIME	2220	$self->reset_at <= $cf::RUNTIME
1357	}	2221	}
1358		2222
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	2223	sub reset {
1381	my ($self) = @_;	2224	my ($self) = @_;
1382		2225
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	2226	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		2227
1385	return if $self->players;	2228	return if $self->players;
1386	return if $self->{path}{user_rel};#d#
1387		2229
1388	warn "resetting map ", $self->path;#d#	2230	warn "resetting map ", $self->path;
		2231
		2232	$self->in_memory (cf::MAP_SWAPPED);
		2233
		2234	# need to save uniques path
		2235	unless ($self->{deny_save}) {
		2236	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2237
		2238	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2239	if $uniq;
		2240	}
1389		2241
1390	delete $cf::MAP{$self->path};	2242	delete $cf::MAP{$self->path};
1391		2243
		2244	$self->deactivate;
1392	$_->clear_links_to ($self) for values %cf::MAP;	2245	$_->clear_links_to ($self) for values %cf::MAP;
		2246	$self->clear;
1393		2247
1394	$self->unlink_save;	2248	$self->unlink_save;
1395	$self->destroy;	2249	$self->destroy;
1396	}	2250	}
1397		2251
1398	my $nuke_counter = "aaaa";	2252	my $nuke_counter = "aaaa";
1399		2253
1400	sub nuke {	2254	sub nuke {
1401	my ($self) = @_;	2255	my ($self) = @_;
1402		2256
		2257	{
		2258	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2259
		2260	delete $cf::MAP{$self->path};
		2261
		2262	$self->unlink_save;
		2263
		2264	bless $self, "cf::map";
		2265	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	2266	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	2267	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	2268	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2269
		2270	$cf::MAP{$self->path} = $self;
		2271	}
		2272
1406	$self->reset; # polite request, might not happen	2273	$self->reset; # polite request, might not happen
1407	}	2274	}
1408		2275
1409	sub customise_for {	2276	=item $maps = cf::map::tmp_maps
1410	my ($map, $ob) = @_;
1411		2277
1412	if ($map->per_player) {	2278	Returns an arrayref with all map paths of currently instantiated and saved
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2279	maps. May block.
		2280
		2281	=cut
		2282
		2283	sub tmp_maps() {
1414	}	2284	[
1415		2285	map {
1416	$map	2286	utf8::decode $_;
		2287	/\.map$/
		2288	? normalise $_
		2289	: ()
		2290	} @{ aio_readdir $TMPDIR or [] }
		2291	]
1417	}	2292	}
1418		2293
1419	sub emergency_save {	2294	=item $maps = cf::map::random_maps
1420	my $freeze_guard = cf::freeze_mainloop;
1421		2295
1422	warn "enter emergency map save\n";	2296	Returns an arrayref with all map paths of currently instantiated and saved
		2297	random maps. May block.
1423		2298
1424	cf::sync_job {	2299	=cut
1425	warn "begin emergency map save\n";
1426	$_->save for values %cf::MAP;
1427	};
1428		2300
1429	warn "end emergency map save\n";	2301	sub random_maps() {
		2302	[
		2303	map {
		2304	utf8::decode $_;
		2305	/\.map$/
		2306	? normalise "?random/$_"
		2307	: ()
		2308	} @{ aio_readdir $RANDOMDIR or [] }
		2309	]
		2310	}
		2311
		2312	=item cf::map::unique_maps
		2313
		2314	Returns an arrayref of paths of all shared maps that have
		2315	instantiated unique items. May block.
		2316
		2317	=cut
		2318
		2319	sub unique_maps() {
		2320	[
		2321	map {
		2322	utf8::decode $_;
		2323	/\.map$/
		2324	? normalise $_
		2325	: ()
		2326	} @{ aio_readdir $UNIQUEDIR or [] }
		2327	]
1430	}	2328	}
1431		2329
1432	package cf;	2330	package cf;
1433		2331
1434	=back	2332	=back
1435		2333
		2334	=head3 cf::object
		2335
		2336	=cut
		2337
		2338	package cf::object;
		2339
		2340	=over 4
		2341
		2342	=item $ob->inv_recursive
		2343
		2344	Returns the inventory of the object _and_ their inventories, recursively.
		2345
		2346	=cut
		2347
		2348	sub inv_recursive_;
		2349	sub inv_recursive_ {
		2350	map { $_, inv_recursive_ $_->inv } @_
		2351	}
		2352
		2353	sub inv_recursive {
		2354	inv_recursive_ inv $_[0]
		2355	}
		2356
		2357	=item $ref = $ob->ref
		2358
		2359	creates and returns a persistent reference to an objetc that can be stored as a string.
		2360
		2361	=item $ob = cf::object::deref ($refstring)
		2362
		2363	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2364	even if the object actually exists. May block.
		2365
		2366	=cut
		2367
		2368	sub deref {
		2369	my ($ref) = @_;
		2370
		2371	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2372	my ($uuid, $name) = ($1, $2);
		2373	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2374	or return;
		2375	$pl->ob->uuid eq $uuid
		2376	or return;
		2377
		2378	$pl->ob
		2379	} else {
		2380	warn "$ref: cannot resolve object reference\n";
		2381	undef
		2382	}
		2383	}
		2384
		2385	package cf;
		2386
		2387	=back
1436		2388
1437	=head3 cf::object::player	2389	=head3 cf::object::player
1438		2390
1439	=over 4	2391	=over 4
1440		2392
…		…
1454		2406
1455	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2407	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1456		2408
1457	if ($self->{record_replies}) {	2409	if ($self->{record_replies}) {
1458	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2410	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2411
1459	} else {	2412	} else {
		2413	my $pl = $self->contr;
		2414
		2415	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2416	my $dialog = $pl->{npc_dialog};
		2417	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2418
		2419	} else {
1460	$msg = $npc->name . " says: $msg" if $npc;	2420	$msg = $npc->name . " says: $msg" if $npc;
1461	$self->message ($msg, $flags);	2421	$self->message ($msg, $flags);
		2422	}
1462	}	2423	}
		2424	}
		2425
		2426	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2427
		2428	=cut
		2429
		2430	sub cf::object::send_msg {
		2431	my $pl = shift->contr
		2432	or return;
		2433	$pl->send_msg (@_);
1463	}	2434	}
1464		2435
1465	=item $player_object->may ("access")	2436	=item $player_object->may ("access")
1466		2437
1467	Returns wether the given player is authorized to access resource "access"	2438	Returns wether the given player is authorized to access resource "access"
…		…
1480		2451
1481	=item $player_object->enter_link	2452	=item $player_object->enter_link
1482		2453
1483	Freezes the player and moves him/her to a special map (C<{link}>).	2454	Freezes the player and moves him/her to a special map (C<{link}>).
1484		2455
1485	The player should be reaosnably safe there for short amounts of time. You	2456	The player should be reasonably safe there for short amounts of time. You
1486	I<MUST> call C<leave_link> as soon as possible, though.	2457	I<MUST> call C<leave_link> as soon as possible, though.
1487		2458
		2459	Will never block.
		2460
1488	=item $player_object->leave_link ($map, $x, $y)	2461	=item $player_object->leave_link ($map, $x, $y)
1489		2462
1490	Moves the player out of the specila link map onto the given map. If the	2463	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	2464	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	2465	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	2466	fails, to the emergency map position.
1494		2467
1495	Might block.	2468	Might block.
1496		2469
1497	=cut	2470	=cut
		2471
		2472	sub link_map {
		2473	unless ($LINK_MAP) {
		2474	$LINK_MAP = cf::map::find "{link}"
		2475	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2476	$LINK_MAP->load;
		2477	}
		2478
		2479	$LINK_MAP
		2480	}
1498		2481
1499	sub cf::object::player::enter_link {	2482	sub cf::object::player::enter_link {
1500	my ($self) = @_;	2483	my ($self) = @_;
1501		2484
1502	$self->deactivate_recursive;	2485	$self->deactivate_recursive;
1503		2486
1504	return if $self->map == $LINK_MAP;	2487	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		2488
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2489	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	2490	if $self->map && $self->map->{path} ne "{link}";
1508		2491
1509	$self->enter_map ($LINK_MAP, 20, 20);	2492	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1510	}	2493	}
1511		2494
1512	sub cf::object::player::leave_link {	2495	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	2496	my ($self, $map, $x, $y) = @_;
		2497
		2498	return unless $self->contr->active;
1514		2499
1515	my $link_pos = delete $self->{_link_pos};	2500	my $link_pos = delete $self->{_link_pos};
1516		2501
1517	unless ($map) {	2502	unless ($map) {
1518	# restore original map position	2503	# restore original map position
…		…
1532	# use -1 or undef as default coordinates, not 0, 0	2517	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	2518	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	2519	if $x <=0 && $y <= 0;
1535		2520
1536	$map->load;	2521	$map->load;
		2522	$map->load_neighbours;
1537		2523
		2524	return unless $self->contr->active;
1538	$self->activate_recursive;	2525	$self->activate_recursive;
		2526
		2527	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1539	$self->enter_map ($map, $x, $y);	2528	$self->enter_map ($map, $x, $y);
1540	}	2529	}
1541		2530
1542	cf::player->attach (	2531	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1543	on_logout => sub {
1544	my ($pl) = @_;
1545		2532
1546	# abort map switching before logout	2533	Moves the player to the given map-path and coordinates by first freezing
1547	if ($pl->ob->{_link_pos}) {	2534	her, loading and preparing them map, calling the provided $check callback
1548	cf::sync_job {	2535	that has to return the map if sucecssful, and then unfreezes the player on
1549	$pl->ob->leave_link	2536	the new (success) or old (failed) map position. In either case, $done will
1550	};	2537	be called at the end of this process.
1551	}
1552	},
1553	on_login => sub {
1554	my ($pl) = @_;
1555		2538
1556	# try to abort aborted map switching on player login :)
1557	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;
1560	cf::async {
1561	# we need this sleep as the login has a concurrent enter_exit running
1562	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;
1565	};
1566	}
1567	},
1568	);
1569
1570	=item $player_object->goto ($path, $x, $y)
1571
1572	=cut	2539	=cut
		2540
		2541	our $GOTOGEN;
1573		2542
1574	sub cf::object::player::goto {	2543	sub cf::object::player::goto {
1575	my ($self, $path, $x, $y) = @_;	2544	my ($self, $path, $x, $y, $check, $done) = @_;
		2545
		2546	# do generation counting so two concurrent goto's will be executed in-order
		2547	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1576		2548
1577	$self->enter_link;	2549	$self->enter_link;
1578		2550
1579	(cf::async {	2551	(async {
1580	$path = new cf::path $path;	2552	$Coro::current->{desc} = "player::goto $path $x $y";
1581		2553
1582	my $map = cf::map::find $path->as_string;	2554	# *tag paths override both path and x|y
		2555	if ($path =~ /^\*(.*)$/) {
		2556	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2557	my $ob = $obs[rand @obs];
		2558
		2559	# see if we actually can go there
		2560	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2561	$ob = $obs[rand @obs];
		2562	} else {
		2563	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2564	}
		2565	# else put us there anyways for now #d#
		2566
		2567	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2568	} else {
		2569	($path, $x, $y) = (undef, undef, undef);
		2570	}
		2571	}
		2572
		2573	my $map = eval {
		2574	my $map = defined $path ? cf::map::find $path : undef;
		2575
		2576	if ($map) {
1583	$map = $map->customise_for ($self) if $map;	2577	$map = $map->customise_for ($self);
1584		2578	$map = $check->($map) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	2579	} else {
1586	# if $map;
1587
1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2580	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2581	}
1589		2582
		2583	$map
		2584	};
		2585
		2586	if ($@) {
		2587	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2588	LOG llevError | logBacktrace, Carp::longmess $@;
		2589	}
		2590
		2591	if ($gen == $self->{_goto_generation}) {
		2592	delete $self->{_goto_generation};
1590	$self->leave_link ($map, $x, $y);	2593	$self->leave_link ($map, $x, $y);
		2594	}
		2595
		2596	$done->() if $done;
1591	})->prio (1);	2597	})->prio (1);
1592	}	2598	}
1593		2599
1594	=item $player_object->enter_exit ($exit_object)	2600	=item $player_object->enter_exit ($exit_object)
1595		2601
…		…
1597		2603
1598	sub parse_random_map_params {	2604	sub parse_random_map_params {
1599	my ($spec) = @_;	2605	my ($spec) = @_;
1600		2606
1601	my $rmp = { # defaults	2607	my $rmp = { # defaults
1602	xsize => 10,	2608	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2609	ysize => (cf::rndm 15, 40),
		2610	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2611	#layout => string,
1604	};	2612	};
1605		2613
1606	for (split /\n/, $spec) {	2614	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2615	my ($k, $v) = split /\s+/, $_, 2;
1608		2616
…		…
1612	$rmp	2620	$rmp
1613	}	2621	}
1614		2622
1615	sub prepare_random_map {	2623	sub prepare_random_map {
1616	my ($exit) = @_;	2624	my ($exit) = @_;
		2625
		2626	my $guard = cf::lock_acquire "exit_prepare:$exit";
1617		2627
1618	# all this does is basically replace the /! path by	2628	# all this does is basically replace the /! path by
1619	# a new random map path (?random/...) with a seed	2629	# a new random map path (?random/...) with a seed
1620	# that depends on the exit object	2630	# that depends on the exit object
1621		2631
1622	my $rmp = parse_random_map_params $exit->msg;	2632	my $rmp = parse_random_map_params $exit->msg;
1623		2633
1624	if ($exit->map) {	2634	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2635	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2636	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2637	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2638	$rmp->{origin_y} = $exit->y;
1629	}	2639	}
1630		2640
1631	$rmp->{random_seed} ||= $exit->random_seed;	2641	$rmp->{random_seed} ||= $exit->random_seed;
1632		2642
1633	my $data = cf::to_json $rmp;	2643	my $data = cf::encode_json $rmp;
1634	my $md5 = Digest::MD5::md5_hex $data;	2644	my $md5 = Digest::MD5::md5_hex $data;
		2645	my $meta = "$RANDOMDIR/$md5.meta";
1635		2646
1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2647	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1637	aio_write $fh, 0, (length $data), $data, 0;	2648	aio_write $fh, 0, (length $data), $data, 0;
		2649	undef $fh;
		2650	aio_rename "$meta~", $meta;
1638		2651
1639	$exit->slaying ("?random/$md5");	2652	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2653	$exit->msg (undef);
1641	}	2654	}
1642	}	2655	}
…		…
1644	sub cf::object::player::enter_exit {	2657	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2658	my ($self, $exit) = @_;
1646		2659
1647	return unless $self->type == cf::PLAYER;	2660	return unless $self->type == cf::PLAYER;
1648		2661
		2662	if ($exit->slaying eq "/!") {
		2663	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2664	# the problem is that $exit might not survive long enough
		2665	# so it needs to be done right now, right here
		2666	cf::sync_job { prepare_random_map $exit };
		2667	}
		2668
		2669	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2670	my $hp = $exit->stats->hp;
		2671	my $sp = $exit->stats->sp;
		2672
1649	$self->enter_link;	2673	$self->enter_link;
1650		2674
		2675	# if exit is damned, update players death & WoR home-position
		2676	$self->contr->savebed ($slaying, $hp, $sp)
		2677	if $exit->flag (FLAG_DAMNED);
		2678
1651	(cf::async {	2679	(async {
		2680	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2681
1652	$self->deactivate_recursive; # just to be sure	2682	$self->deactivate_recursive; # just to be sure
1653	unless (eval {	2683	unless (eval {
1654	prepare_random_map $exit	2684	$self->goto ($slaying, $hp, $sp);
1655	if $exit->slaying eq "/!";
1656
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1659		2685
1660	1;	2686	1;
1661	}) {	2687	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2688	$self->message ("Something went wrong deep within the crossfire server. "
1663	. "I'll try to bring you back to the map you were before. "	2689	. "I'll try to bring you back to the map you were before. "
1664	. "Please report this to the dungeon master",	2690	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2691	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2692
1667	warn "ERROR in enter_exit: $@";	2693	warn "ERROR in enter_exit: $@";
1668	$self->leave_link;	2694	$self->leave_link;
1669	}	2695	}
1670	})->prio (1);	2696	})->prio (1);
…		…
1683		2709
1684	sub cf::client::send_drawinfo {	2710	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2711	my ($self, $text, $flags) = @_;
1686		2712
1687	utf8::encode $text;	2713	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2714	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2715	}
1690		2716
		2717	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2718
		2719	Send a drawinfo or msg packet to the client, formatting the msg for the
		2720	client if neccessary. C<$type> should be a string identifying the type of
		2721	the message, with C<log> being the default. If C<$color> is negative, suppress
		2722	the message unless the client supports the msg packet.
		2723
		2724	=cut
		2725
		2726	# non-persistent channels (usually the info channel)
		2727	our %CHANNEL = (
		2728	"c/identify" => {
		2729	id => "infobox",
		2730	title => "Identify",
		2731	reply => undef,
		2732	tooltip => "Items recently identified",
		2733	},
		2734	"c/examine" => {
		2735	id => "infobox",
		2736	title => "Examine",
		2737	reply => undef,
		2738	tooltip => "Signs and other items you examined",
		2739	},
		2740	"c/book" => {
		2741	id => "infobox",
		2742	title => "Book",
		2743	reply => undef,
		2744	tooltip => "The contents of a note or book",
		2745	},
		2746	"c/lookat" => {
		2747	id => "infobox",
		2748	title => "Look",
		2749	reply => undef,
		2750	tooltip => "What you saw there",
		2751	},
		2752	"c/who" => {
		2753	id => "infobox",
		2754	title => "Players",
		2755	reply => undef,
		2756	tooltip => "Shows players who are currently online",
		2757	},
		2758	"c/body" => {
		2759	id => "infobox",
		2760	title => "Body Parts",
		2761	reply => undef,
		2762	tooltip => "Shows which body parts you posess and are available",
		2763	},
		2764	"c/uptime" => {
		2765	id => "infobox",
		2766	title => "Uptime",
		2767	reply => undef,
		2768	tooltip => "How long the server has been running since last restart",
		2769	},
		2770	"c/mapinfo" => {
		2771	id => "infobox",
		2772	title => "Map Info",
		2773	reply => undef,
		2774	tooltip => "Information related to the maps",
		2775	},
		2776	);
		2777
		2778	sub cf::client::send_msg {
		2779	my ($self, $channel, $msg, $color, @extra) = @_;
		2780
		2781	$msg = $self->pl->expand_cfpod ($msg);
		2782
		2783	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2784
		2785	# check predefined channels, for the benefit of C
		2786	if ($CHANNEL{$channel}) {
		2787	$channel = $CHANNEL{$channel};
		2788
		2789	$self->ext_msg (channel_info => $channel)
		2790	if $self->can_msg;
		2791
		2792	$channel = $channel->{id};
		2793
		2794	} elsif (ref $channel) {
		2795	# send meta info to client, if not yet sent
		2796	unless (exists $self->{channel}{$channel->{id}}) {
		2797	$self->{channel}{$channel->{id}} = $channel;
		2798	$self->ext_msg (channel_info => $channel)
		2799	if $self->can_msg;
		2800	}
		2801
		2802	$channel = $channel->{id};
		2803	}
		2804
		2805	return unless @extra || length $msg;
		2806
		2807	if ($self->can_msg) {
		2808	# default colour, mask it out
		2809	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2810	if $color & cf::NDI_DEF;
		2811
		2812	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2813	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2814	} else {
		2815	if ($color >= 0) {
		2816	# replace some tags by gcfclient-compatible ones
		2817	for ($msg) {
		2818	1 while
		2819	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2820	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2821	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2822	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2823	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2824	}
		2825
		2826	$color &= cf::NDI_COLOR_MASK;
		2827
		2828	utf8::encode $msg;
		2829
		2830	if (0 && $msg =~ /\[/) {
		2831	# COMMAND/INFO
		2832	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2833	} else {
		2834	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2835	$self->send_packet ("drawinfo $color $msg")
		2836	}
		2837	}
		2838	}
		2839	}
		2840
		2841	=item $client->ext_msg ($type, @msg)
		2842
		2843	Sends an ext event to the client.
		2844
		2845	=cut
		2846
		2847	sub cf::client::ext_msg($$@) {
		2848	my ($self, $type, @msg) = @_;
		2849
		2850	if ($self->extcmd == 2) {
		2851	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2852	} elsif ($self->extcmd == 1) { # TODO: remove
		2853	push @msg, msgtype => "event_$type";
		2854	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2855	}
		2856	}
		2857
		2858	=item $client->ext_reply ($msgid, @msg)
		2859
		2860	Sends an ext reply to the client.
		2861
		2862	=cut
		2863
		2864	sub cf::client::ext_reply($$@) {
		2865	my ($self, $id, @msg) = @_;
		2866
		2867	if ($self->extcmd == 2) {
		2868	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2869	} elsif ($self->extcmd == 1) {
		2870	#TODO: version 1, remove
		2871	unshift @msg, msgtype => "reply", msgid => $id;
		2872	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2873	}
		2874	}
1691		2875
1692	=item $success = $client->query ($flags, "text", \&cb)	2876	=item $success = $client->query ($flags, "text", \&cb)
1693		2877
1694	Queues a query to the client, calling the given callback with	2878	Queues a query to the client, calling the given callback with
1695	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2879	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1696	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2880	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1697		2881
1698	Queries can fail, so check the return code. Or don't, as queries will become	2882	Queries can fail, so check the return code. Or don't, as queries will
1699	reliable at some point in the future.	2883	become reliable at some point in the future.
1700		2884
1701	=cut	2885	=cut
1702		2886
1703	sub cf::client::query {	2887	sub cf::client::query {
1704	my ($self, $flags, $text, $cb) = @_;	2888	my ($self, $flags, $text, $cb) = @_;
…		…
1712	utf8::encode $text;	2896	utf8::encode $text;
1713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2897	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1714		2898
1715	$self->send_packet ($self->{query_queue}[0][0])	2899	$self->send_packet ($self->{query_queue}[0][0])
1716	if @{ $self->{query_queue} } == 1;	2900	if @{ $self->{query_queue} } == 1;
		2901
		2902	1
1717	}	2903	}
1718		2904
1719	cf::client->attach (	2905	cf::client->attach (
		2906	on_connect => sub {
		2907	my ($ns) = @_;
		2908
		2909	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2910	},
1720	on_reply => sub {	2911	on_reply => sub {
1721	my ($ns, $msg) = @_;	2912	my ($ns, $msg) = @_;
1722		2913
1723	# this weird shuffling is so that direct followup queries	2914	# this weird shuffling is so that direct followup queries
1724	# get handled first	2915	# get handled first
1725	my $queue = delete $ns->{query_queue}	2916	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	2917	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		2918
1728	(shift @$queue)->[1]->($msg);	2919	(shift @$queue)->[1]->($msg);
		2920	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		2921
1730	push @{ $ns->{query_queue} }, @$queue;	2922	push @{ $ns->{query_queue} }, @$queue;
1731		2923
1732	if (@{ $ns->{query_queue} } == @$queue) {	2924	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	2925	if (@$queue) {
…		…
1735	} else {	2927	} else {
1736	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2928	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1737	}	2929	}
1738	}	2930	}
1739	},	2931	},
		2932	on_exticmd => sub {
		2933	my ($ns, $buf) = @_;
		2934
		2935	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2936
		2937	if (ref $msg) {
		2938	my ($type, $reply, @payload) =
		2939	"ARRAY" eq ref $msg
		2940	? @$msg
		2941	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2942
		2943	my @reply;
		2944
		2945	if (my $cb = $EXTICMD{$type}) {
		2946	@reply = $cb->($ns, @payload);
		2947	}
		2948
		2949	$ns->ext_reply ($reply, @reply)
		2950	if $reply;
		2951
		2952	} else {
		2953	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2954	}
		2955
		2956	cf::override;
		2957	},
1740	);	2958	);
1741		2959
1742	=item $client->coro (\&cb)	2960	=item $client->async (\&cb)
1743		2961
1744	Create a new coroutine, running the specified callback. The coroutine will	2962	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	2963	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	2964	or loss of connection).
1747		2965
1748	=cut	2966	=cut
1749		2967
1750	sub cf::client::coro {	2968	sub cf::client::async {
1751	my ($self, $cb) = @_;	2969	my ($self, $cb) = @_;
1752		2970
1753	my $coro = &cf::async ($cb);	2971	my $coro = &Coro::async ($cb);
1754		2972
1755	$coro->on_destroy (sub {	2973	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	2974	delete $self->{_coro}{$coro+0};
1757	});	2975	});
1758		2976
…		…
1785	our $safe = new Safe "safe";	3003	our $safe = new Safe "safe";
1786	our $safe_hole = new Safe::Hole;	3004	our $safe_hole = new Safe::Hole;
1787		3005
1788	$SIG{FPE} = 'IGNORE';	3006	$SIG{FPE} = 'IGNORE';
1789		3007
1790	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3008	$safe->permit_only (Opcode::opset qw(
		3009	:base_core :base_mem :base_orig :base_math
		3010	grepstart grepwhile mapstart mapwhile
		3011	sort time
		3012	));
1791		3013
1792	# here we export the classes and methods available to script code	3014	# here we export the classes and methods available to script code
1793		3015
1794	=pod	3016	=pod
1795		3017
1796	The following fucntions and emthods are available within a safe environment:	3018	The following functions and methods are available within a safe environment:
1797		3019
1798	cf::object contr pay_amount pay_player map	3020	cf::object
		3021	contr pay_amount pay_player map x y force_find force_add destroy
		3022	insert remove name archname title slaying race decrease_ob_nr
		3023
1799	cf::object::player player	3024	cf::object::player
1800	cf::player peaceful	3025	player
1801	cf::map trigger	3026
		3027	cf::player
		3028	peaceful
		3029
		3030	cf::map
		3031	trigger
1802		3032
1803	=cut	3033	=cut
1804		3034
1805	for (	3035	for (
1806	["cf::object" => qw(contr pay_amount pay_player map)],	3036	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3037	insert remove inv name archname title slaying race
		3038	decrease_ob_nr destroy)],
1807	["cf::object::player" => qw(player)],	3039	["cf::object::player" => qw(player)],
1808	["cf::player" => qw(peaceful)],	3040	["cf::player" => qw(peaceful)],
1809	["cf::map" => qw(trigger)],	3041	["cf::map" => qw(trigger)],
1810	) {	3042	) {
1811	no strict 'refs';	3043	no strict 'refs';
…		…
1882	=back	3114	=back
1883		3115
1884	=cut	3116	=cut
1885		3117
1886	#############################################################################	3118	#############################################################################
		3119	# the server's init and main functions
1887		3120
1888	=head2 EXTENSION DATABASE SUPPORT	3121	sub load_facedata($) {
		3122	my ($path) = @_;
1889		3123
1890	Crossfire maintains a very simple database for extension use. It can	3124	# HACK to clear player env face cache, we need some signal framework
1891	currently store anything that can be serialised using Storable, which	3125	# for this (global event?)
1892	excludes objects.	3126	%ext::player_env::MUSIC_FACE_CACHE = ();
1893		3127
1894	The parameter C<$family> should best start with the name of the extension	3128	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1895	using it, it should be unique.
1896		3129
1897	=over 4	3130	warn "loading facedata from $path\n";
1898		3131
1899	=item $hashref = cf::db_get $family	3132	my $facedata;
		3133	0 < aio_load $path, $facedata
		3134	or die "$path: $!";
1900		3135
1901	Return a hashref for use by the extension C<$family>, which can be	3136	$facedata = Coro::Storable::thaw $facedata;
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904		3137
1905	=item $value = cf::db_get $family => $key	3138	$facedata->{version} == 2
		3139	or cf::cleanup "$path: version mismatch, cannot proceed.";
1906		3140
1907	Returns a single value from the database	3141	# patch in the exptable
1908		3142	$facedata->{resource}{"res/exp_table"} = {
1909	=item cf::db_put $family => $hashref	3143	type => FT_RSRC,
1910		3144	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1911	Stores the given family hashref into the database. Updates are delayed, if
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_put $family => $key => $value
1915
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926
1927	=cut
1928
1929	our $DB;
1930
1931	{
1932	my $path = cf::localdir . "/database.pst";
1933
1934	sub db_load() {
1935	$DB = stat $path ? Storable::retrieve $path : { };
1936	}
1937
1938	my $pid;
1939
1940	sub db_save() {
1941	waitpid $pid, 0 if $pid;
1942	if (0 == ($pid = fork)) {
1943	$DB->{_meta}{version} = 1;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});	3145	};
		3146	cf::cede_to_tick;
1960		3147
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}	3148	{
		3149	my $faces = $facedata->{faceinfo};
1965		3150
1966	sub db_get($;$) {	3151	while (my ($face, $info) = each %$faces) {
1967	@_ >= 2	3152	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1968	? $DB->{$_[0]}{$_[1]}	3153	cf::face::set_visibility $idx, $info->{visibility};
1969	: ($DB->{$_[0]} ||= { })	3154	cf::face::set_magicmap $idx, $info->{magicmap};
1970	}	3155	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3156	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1971		3157
1972	sub db_put($$;$) {	3158	cf::cede_to_tick;
1973	if (@_ >= 3) {
1974	$DB->{$_[0]}{$_[1]} = $_[2];
1975	} else {
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980
1981	cf::global->attach (
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	3159	}
1986	);
1987	}
1988		3160
1989	#############################################################################	3161	while (my ($face, $info) = each %$faces) {
1990	# the server's main()	3162	next unless $info->{smooth};
		3163	my $idx = cf::face::find $face
		3164	or next;
		3165	if (my $smooth = cf::face::find $info->{smooth}) {
		3166	cf::face::set_smooth $idx, $smooth;
		3167	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3168	} else {
		3169	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3170	}
1991		3171
1992	sub cfg_load {	3172	cf::cede_to_tick;
		3173	}
		3174	}
		3175
		3176	{
		3177	my $anims = $facedata->{animinfo};
		3178
		3179	while (my ($anim, $info) = each %$anims) {
		3180	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3181	cf::cede_to_tick;
		3182	}
		3183
		3184	cf::anim::invalidate_all; # d'oh
		3185	}
		3186
		3187	{
		3188	# TODO: for gcfclient pleasure, we should give resources
		3189	# that gcfclient doesn't grok a >10000 face index.
		3190	my $res = $facedata->{resource};
		3191
		3192	my $soundconf = delete $res->{"res/sound.conf"};
		3193
		3194	while (my ($name, $info) = each %$res) {
		3195	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3196	my $data;
		3197
		3198	if ($info->{type} & 1) {
		3199	# prepend meta info
		3200
		3201	my $meta = $enc->encode ({
		3202	name => $name,
		3203	%{ $info->{meta} || {} },
		3204	});
		3205
		3206	$data = pack "(w/a*)*", $meta, $info->{data};
		3207	} else {
		3208	$data = $info->{data};
		3209	}
		3210
		3211	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3212	cf::face::set_type $idx, $info->{type};
		3213
		3214	cf::cede_to_tick;
		3215	}
		3216
		3217	if ($soundconf) {
		3218	$soundconf = $enc->decode (delete $soundconf->{data});
		3219
		3220	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3221	my $sound = $soundconf->{compat}[$_]
		3222	or next;
		3223
		3224	my $face = cf::face::find "sound/$sound->[1]";
		3225	cf::sound::set $sound->[0] => $face;
		3226	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3227	}
		3228
		3229	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3230	my $face = cf::face::find "sound/$v";
		3231	cf::sound::set $k => $face;
		3232	}
		3233	}
		3234	}
		3235
		3236	1
		3237	}
		3238
		3239	register_exticmd fx_want => sub {
		3240	my ($ns, $want) = @_;
		3241
		3242	while (my ($k, $v) = each %$want) {
		3243	$ns->fx_want ($k, $v);
		3244	}
		3245	};
		3246
		3247	sub reload_regions {
		3248	# HACK to clear player env face cache, we need some signal framework
		3249	# for this (global event?)
		3250	%ext::player_env::MUSIC_FACE_CACHE = ();
		3251
		3252	load_resource_file "$MAPDIR/regions"
		3253	or die "unable to load regions file\n";
		3254
		3255	for (cf::region::list) {
		3256	$_->{match} = qr/$_->{match}/
		3257	if exists $_->{match};
		3258	}
		3259	}
		3260
		3261	sub reload_facedata {
		3262	load_facedata "$DATADIR/facedata"
		3263	or die "unable to load facedata\n";
		3264	}
		3265
		3266	sub reload_archetypes {
		3267	load_resource_file "$DATADIR/archetypes"
		3268	or die "unable to load archetypes\n";
		3269	#d# NEED to laod twice to resolve forward references
		3270	# this really needs to be done in an extra post-pass
		3271	# (which needs to be synchronous, so solve it differently)
		3272	load_resource_file "$DATADIR/archetypes"
		3273	or die "unable to load archetypes\n";
		3274	}
		3275
		3276	sub reload_treasures {
		3277	load_resource_file "$DATADIR/treasures"
		3278	or die "unable to load treasurelists\n";
		3279	}
		3280
		3281	sub reload_resources {
		3282	warn "reloading resource files...\n";
		3283
		3284	reload_regions;
		3285	reload_facedata;
		3286	#reload_archetypes;#d#
		3287	reload_archetypes;
		3288	reload_treasures;
		3289
		3290	warn "finished reloading resource files\n";
		3291	}
		3292
		3293	sub init {
		3294	reload_resources;
		3295	}
		3296
		3297	sub reload_config {
1993	open my $fh, "<:utf8", cf::confdir . "/config"	3298	open my $fh, "<:utf8", "$CONFDIR/config"
1994	or return;	3299	or return;
1995		3300
1996	local $/;	3301	local $/;
1997	*CFG = YAML::Syck::Load <$fh>;	3302	*CFG = YAML::Syck::Load <$fh>;
1998		3303
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3304	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2000		3305
		3306	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3307	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3308
2001	if (exists $CFG{mlockall}) {	3309	if (exists $CFG{mlockall}) {
2002	eval {	3310	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	3311	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	3312	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	3313	};
2006	warn $@ if $@;	3314	warn $@ if $@;
2007	}	3315	}
2008	}	3316	}
2009		3317
2010	sub main {	3318	sub main {
2011	# we must not ever block the main coroutine	3319	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	3320	local $Coro::idle = sub {
2013	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3321	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2014	(Coro::unblock_sub {	3322	(async {
2015	Event::one_event;	3323	$Coro::current->{desc} = "IDLE BUG HANDLER";
2016	})->();	3324	EV::loop EV::LOOP_ONESHOT;
		3325	})->prio (Coro::PRIO_MAX);
2017	};	3326	};
2018		3327
2019	cfg_load;	3328	reload_config;
2020	db_load;	3329	db_init;
2021	load_extensions;	3330	load_extensions;
		3331
		3332	$TICK_WATCHER->start;
		3333	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2022	Event::loop;	3334	EV::loop;
2023	}	3335	}
2024		3336
2025	#############################################################################	3337	#############################################################################
2026	# initialisation	3338	# initialisation and cleanup
2027		3339
		3340	# install some emergency cleanup handlers
		3341	BEGIN {
		3342	our %SIGWATCHER = ();
		3343	for my $signal (qw(INT HUP TERM)) {
		3344	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3345	cf::cleanup "SIG$signal";
		3346	};
		3347	}
		3348	}
		3349
		3350	sub write_runtime {
		3351	my $runtime = "$LOCALDIR/runtime";
		3352
		3353	# first touch the runtime file to show we are still running:
		3354	# the fsync below can take a very very long time.
		3355
		3356	IO::AIO::aio_utime $runtime, undef, undef;
		3357
		3358	my $guard = cf::lock_acquire "write_runtime";
		3359
		3360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3361	or return;
		3362
		3363	my $value = $cf::RUNTIME + 90 + 10;
		3364	# 10 is the runtime save interval, for a monotonic clock
		3365	# 60 allows for the watchdog to kill the server.
		3366
		3367	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3368	and return;
		3369
		3370	# always fsync - this file is important
		3371	aio_fsync $fh
		3372	and return;
		3373
		3374	# touch it again to show we are up-to-date
		3375	aio_utime $fh, undef, undef;
		3376
		3377	close $fh
		3378	or return;
		3379
		3380	aio_rename "$runtime~", $runtime
		3381	and return;
		3382
		3383	warn "runtime file written.\n";
		3384
		3385	1
		3386	}
		3387
		3388	sub emergency_save() {
		3389	my $freeze_guard = cf::freeze_mainloop;
		3390
		3391	warn "enter emergency perl save\n";
		3392
		3393	cf::sync_job {
		3394	# use a peculiar iteration method to avoid tripping on perl
		3395	# refcount bugs in for. also avoids problems with players
		3396	# and maps saved/destroyed asynchronously.
		3397	warn "begin emergency player save\n";
		3398	for my $login (keys %cf::PLAYER) {
		3399	my $pl = $cf::PLAYER{$login} or next;
		3400	$pl->valid or next;
		3401	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3402	$pl->save;
		3403	}
		3404	warn "end emergency player save\n";
		3405
		3406	warn "begin emergency map save\n";
		3407	for my $path (keys %cf::MAP) {
		3408	my $map = $cf::MAP{$path} or next;
		3409	$map->valid or next;
		3410	$map->save;
		3411	}
		3412	warn "end emergency map save\n";
		3413
		3414	warn "begin emergency database checkpoint\n";
		3415	BDB::db_env_txn_checkpoint $DB_ENV;
		3416	warn "end emergency database checkpoint\n";
		3417	};
		3418
		3419	warn "leave emergency perl save\n";
		3420	}
		3421
		3422	sub post_cleanup {
		3423	my ($make_core) = @_;
		3424
		3425	warn Carp::longmess "post_cleanup backtrace"
		3426	if $make_core;
		3427	}
		3428
2028	sub reload() {	3429	sub do_reload_perl() {
2029	# can/must only be called in main	3430	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	3431	if ($Coro::current != $Coro::main) {
2031	warn "can only reload from main coroutine\n";	3432	warn "can only reload from main coroutine";
2032	return;	3433	return;
2033	}	3434	}
2034		3435
2035	warn "reloading...";	3436	warn "reloading...";
2036		3437
2037	my $guard = freeze_mainloop;	3438	warn "entering sync_job";
		3439
		3440	cf::sync_job {
		3441	cf::write_runtime; # external watchdog should not bark
2038	cf::emergency_save;	3442	cf::emergency_save;
		3443	cf::write_runtime; # external watchdog should not bark
2039		3444
2040	eval {	3445	warn "syncing database to disk";
		3446	BDB::db_env_txn_checkpoint $DB_ENV;
		3447
2041	# if anything goes wrong in here, we should simply crash as we already saved	3448	# if anything goes wrong in here, we should simply crash as we already saved
2042		3449
2043	# cancel all watchers	3450	warn "flushing outstanding aio requests";
2044	for (Event::all_watchers) {	3451	for (;;) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;	3452	BDB::flush;
		3453	IO::AIO::flush;
		3454	Coro::cede_notself;
		3455	last unless IO::AIO::nreqs || BDB::nreqs;
		3456	warn "iterate...";
2046	}	3457	}
2047		3458
		3459	++$RELOAD;
		3460
2048	# cancel all extension coros	3461	warn "cancelling all extension coros";
2049	$_->cancel for values %EXT_CORO;	3462	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	3463	%EXT_CORO = ();
2051		3464
2052	# unload all extensions	3465	warn "removing commands";
2053	for (@exts) {	3466	%COMMAND = ();
		3467
		3468	warn "removing ext/exti commands";
		3469	%EXTCMD = ();
		3470	%EXTICMD = ();
		3471
		3472	warn "unloading/nuking all extensions";
		3473	for my $pkg (@EXTS) {
2054	warn "unloading <$_>";	3474	warn "... unloading $pkg";
2055	unload_extension $_;	3475
		3476	if (my $cb = $pkg->can ("unload")) {
		3477	eval {
		3478	$cb->($pkg);
		3479	1
		3480	} or warn "$pkg unloaded, but with errors: $@";
2056	}	3481	}
2057		3482
		3483	warn "... nuking $pkg";
		3484	Symbol::delete_package $pkg;
		3485	}
		3486
2058	# unload all modules loaded from $LIBDIR	3487	warn "unloading all perl modules loaded from $LIBDIR";
2059	while (my ($k, $v) = each %INC) {	3488	while (my ($k, $v) = each %INC) {
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3489	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061		3490
2062	warn "removing <$k>";	3491	warn "... unloading $k";
2063	delete $INC{$k};	3492	delete $INC{$k};
2064		3493
2065	$k =~ s/\.pm$//;	3494	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;	3495	$k =~ s/\//::/g;
2067		3496
…		…
2070	}	3499	}
2071		3500
2072	Symbol::delete_package $k;	3501	Symbol::delete_package $k;
2073	}	3502	}
2074		3503
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	3504	warn "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	3505	Symbol::delete_package "safe::$_"
2081	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3506	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2082		3507
2083	# remove register_script_function callbacks
2084	# TODO
2085
2086	# unload cf.pm "a bit"	3508	warn "unloading cf.pm \"a bit\"";
2087	delete $INC{"cf.pm"};	3509	delete $INC{"cf.pm"};
		3510	delete $INC{"cf/pod.pm"};
2088		3511
2089	# don't, removes xs symbols, too,	3512	# don't, removes xs symbols, too,
2090	# and global variables created in xs	3513	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	3514	#Symbol::delete_package __PACKAGE__;
2092		3515
2093	# reload cf.pm	3516	warn "unload completed, starting to reload now";
		3517
2094	warn "reloading cf.pm";	3518	warn "reloading cf.pm";
2095	require cf;	3519	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3520	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2097		3521
2098	# load config and database again	3522	warn "loading config and database again";
2099	cf::cfg_load;	3523	cf::reload_config;
2100	cf::db_load;
2101		3524
2102	# load extensions
2103	warn "load extensions";	3525	warn "loading extensions";
2104	cf::load_extensions;	3526	cf::load_extensions;
2105		3527
2106	# reattach attachments to objects	3528	warn "reattaching attachments to objects/players";
2107	warn "reattach";	3529	_global_reattach; # objects, sockets
2108	_global_reattach;	3530	warn "reattaching attachments to maps";
2109	};	3531	reattach $_ for values %MAP;
		3532	warn "reattaching attachments to players";
		3533	reattach $_ for values %PLAYER;
2110		3534
2111	if ($@) {	3535	warn "leaving sync_job";
		3536
		3537	1
		3538	} or do {
2112	warn $@;	3539	warn $@;
2113	warn "error while reloading, exiting.";	3540	warn "error while reloading, exiting.";
2114	exit 1;	3541	exit 1;
2115	}	3542	};
2116		3543
2117	warn "reloaded successfully";	3544	warn "reloaded";
2118	};	3545	};
2119		3546
2120	#############################################################################	3547	our $RELOAD_WATCHER; # used only during reload
2121		3548
2122	unless ($LINK_MAP) {	3549	sub reload_perl() {
2123	$LINK_MAP = cf::map::new;	3550	# doing reload synchronously and two reloads happen back-to-back,
		3551	# coro crashes during coro_state_free->destroy here.
2124		3552
2125	$LINK_MAP->width (41);	3553	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2126	$LINK_MAP->height (41);	3554	undef $RELOAD_WATCHER;
2127	$LINK_MAP->alloc;	3555	do_reload_perl;
2128	$LINK_MAP->path ("{link}");	3556	};
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,
2135	cb => sub {
2136	$_[0]->w->cancel;
2137
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});
2156
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	3557	}
2162
2163	register "<global>", __PACKAGE__;
2164		3558
2165	register_command "reload" => sub {	3559	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	3560	my ($who, $arg) = @_;
2167		3561
2168	if ($who->flag (FLAG_WIZ)) {	3562	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	3563	$who->message ("reloading server.");
		3564	async {
		3565	$Coro::current->{desc} = "perl_reload";
		3566	reload_perl;
		3567	};
2172	}	3568	}
2173	};	3569	};
2174		3570
2175	unshift @INC, $LIBDIR;	3571	unshift @INC, $LIBDIR;
2176		3572
2177	$TICK_WATCHER = Event->timer (	3573	my $bug_warning = 0;
2178	reentrant => 0,	3574
2179	prio => 0,	3575	our @WAIT_FOR_TICK;
2180	at => $NEXT_TICK || $TICK,	3576	our @WAIT_FOR_TICK_BEGIN;
2181	data => WF_AUTOCANCEL,	3577
2182	cb => sub {	3578	sub wait_for_tick {
		3579	return unless $TICK_WATCHER->is_active;
		3580	return if $Coro::current == $Coro::main;
		3581
		3582	my $signal = new Coro::Signal;
		3583	push @WAIT_FOR_TICK, $signal;
		3584	$signal->wait;
		3585	}
		3586
		3587	sub wait_for_tick_begin {
		3588	return unless $TICK_WATCHER->is_active;
		3589	return if $Coro::current == $Coro::main;
		3590
		3591	my $signal = new Coro::Signal;
		3592	push @WAIT_FOR_TICK_BEGIN, $signal;
		3593	$signal->wait;
		3594	}
		3595
		3596	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3597	if ($Coro::current != $Coro::main) {
		3598	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3599	unless ++$bug_warning > 10;
		3600	return;
		3601	}
		3602
		3603	$NOW = $tick_start = EV::now;
		3604
2183	cf::server_tick; # one server iteration	3605	cf::server_tick; # one server iteration
		3606
2184	$RUNTIME += $TICK;	3607	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;	3608	$NEXT_TICK += $TICK;
2186		3609
2187	# if we are delayed by four ticks or more, skip them all	3610	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3611	$NEXT_RUNTIME_WRITE = $NOW + 10;
2189		3612	Coro::async_pool {
2190	$TICK_WATCHER->at ($NEXT_TICK);	3613	$Coro::current->{desc} = "runtime saver";
2191	$TICK_WATCHER->start;
2192	},
2193	);
2194
2195	IO::AIO::max_poll_time $TICK * 0.2;
2196
2197	Event->io (
2198	fd => IO::AIO::poll_fileno,
2199	poll => 'r',
2200	prio => 5,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,
2207	after => 0,
2208	interval => 10,
2209	cb => sub {
2210	(Coro::unblock_sub {
2211	write_runtime	3614	write_runtime
2212	or warn "ERROR: unable to write runtime file: $!";	3615	or warn "ERROR: unable to write runtime file: $!";
2213	})->();	3616	};
2214	},	3617	}
2215	);	3618
		3619	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3620	$sig->send;
		3621	}
		3622	while (my $sig = shift @WAIT_FOR_TICK) {
		3623	$sig->send;
		3624	}
		3625
		3626	$LOAD = ($NOW - $tick_start) / $TICK;
		3627	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3628
		3629	_post_tick;
		3630	};
		3631	$TICK_WATCHER->priority (EV::MAXPRI);
		3632
		3633	{
		3634	BDB::min_parallel 8;
		3635	BDB::max_poll_time $TICK * 0.1;
		3636	$BDB_POLL_WATCHER = EV::io BDB::poll_fileno, EV::READ, \&BDB::poll_cb;
		3637
		3638	BDB::set_sync_prepare {
		3639	my $status;
		3640	my $current = $Coro::current;
		3641	(
		3642	sub {
		3643	$status = $!;
		3644	$current->ready; undef $current;
		3645	},
		3646	sub {
		3647	Coro::schedule while defined $current;
		3648	$! = $status;
		3649	},
		3650	)
		3651	};
		3652
		3653	unless ($DB_ENV) {
		3654	$DB_ENV = BDB::db_env_create;
		3655	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3656	| BDB::LOG_AUTOREMOVE, 1);
		3657	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3658	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3659
		3660	cf::sync_job {
		3661	eval {
		3662	BDB::db_env_open
		3663	$DB_ENV,
		3664	$BDBDIR,
		3665	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3666	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3667	0666;
		3668
		3669	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3670	};
		3671
		3672	cf::cleanup "db_env_open(db): $@" if $@;
		3673	};
		3674	}
		3675
		3676	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3677	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3678	};
		3679	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3680	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3681	};
		3682	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3683	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3684	};
		3685	}
		3686
		3687	{
		3688	IO::AIO::min_parallel 8;
		3689
		3690	undef $Coro::AIO::WATCHER;
		3691	IO::AIO::max_poll_time $TICK * 0.1;
		3692	$AIO_POLL_WATCHER = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb;
		3693	}
		3694
		3695	my $_log_backtrace;
		3696
		3697	sub _log_backtrace {
		3698	my ($msg, @addr) = @_;
		3699
		3700	$msg =~ s/\n//;
		3701
		3702	# limit the # of concurrent backtraces
		3703	if ($_log_backtrace < 2) {
		3704	++$_log_backtrace;
		3705	async {
		3706	$Coro::current->{desc} = "abt $msg";
		3707
		3708	my @bt = fork_call {
		3709	@addr = map { sprintf "%x", $_ } @addr;
		3710	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3711	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3712	or die "addr2line: $!";
		3713
		3714	my @funcs;
		3715	my @res = <$fh>;
		3716	chomp for @res;
		3717	while (@res) {
		3718	my ($func, $line) = splice @res, 0, 2, ();
		3719	push @funcs, "[$func] $line";
		3720	}
		3721
		3722	@funcs
		3723	};
		3724
		3725	LOG llevInfo, "[ABT] $msg\n";
		3726	LOG llevInfo, "[ABT] $_\n" for @bt;
		3727	--$_log_backtrace;
		3728	};
		3729	} else {
		3730	LOG llevInfo, "[ABT] $msg\n";
		3731	LOG llevInfo, "[ABT] [suppressed]\n";
		3732	}
		3733	}
		3734
		3735	# load additional modules
		3736	use cf::pod;
2216		3737
2217	END { cf::emergency_save }	3738	END { cf::emergency_save }
2218		3739
2219	1	3740	1
2220		3741

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