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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.130 by root, Thu Jan 4 00:08:08 2007 UTC vs.
Revision 1.395 by root, Sat Nov 10 22:41:59 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 Event;
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::Event;
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 ();
		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
		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
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	97	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	98
56	our %EXT_CORO;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
57		105
58	binmode STDOUT;	106	binmode STDOUT;
59	binmode STDERR;	107	binmode STDERR;
60		108
61	# read virtual server time, if available	109	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
66	}	114	}
67		115
68	mkdir cf::localdir;	116	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		118
74	# a special map that is always available	119	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		120
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	121	sub cf::map::normalise;
78		122
79	#############################################################################	123	#############################################################################
80		124
81	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
82		126
…		…
89	=item $cf::RUNTIME	133	=item $cf::RUNTIME
90		134
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	136	every server tick.
93		137
94	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		141
96	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
98		146
99	=item $cf::NOW	147	=item $cf::NOW
100		148
101	The time of the last (current) server tick.	149	The time of the last (current) server tick.
102		150
103	=item $cf::TICK	151	=item $cf::TICK
104		152
105	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
106		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
		164
107	=item %cf::CFG	165	=item %cf::CFG
108		166
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
111		181
112	=back	182	=back
113		183
114	=cut	184	=cut
115		185
116	BEGIN {	186	BEGIN {
117	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	188	my $msg = join "", @_;
119	utf8::encode $msg;
120		189
121	$msg .= "\n"	190	$msg .= "\n"
122	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
123		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
124	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
125	};	196	};
126	}	197	}
127		198
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		206
135	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	208	# within the Safe compartment.
137	for my $pkg (qw(	209	for my $pkg (qw(
138	cf::global cf::attachable	210	cf::global cf::attachable
…		…
147		219
148	$Event::DIED = sub {	220	$Event::DIED = sub {
149	warn "error in event callback: @_";	221	warn "error in event callback: @_";
150	};	222	};
151		223
152	my %ext_pkg;	224	#############################################################################
153	my @exts;
154	my @hook;
155		225
156	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
157		227
158	=over 4	228	=over 4
159		229
160	=cut	230	=item dumpval $ref
161		231
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
163		252
164	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
165		254
166	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
167		256
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
176		258
177	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
178		260
179	=cut	261	=cut
180		262
181	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		264
186	=item my $guard = cf::guard { BLOCK }	265	sub to_json ($) { $json_coder->encode ($_[0]) }
187		266	sub from_json ($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		267
208	=item cf::lock_wait $string	268	=item cf::lock_wait $string
209		269
210	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
211		271
212	=item my $lock = cf::lock_acquire $string	272	=item my $lock = cf::lock_acquire $string
213		273
214	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
217	returned.	277	returned.
218		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
219	Lock names should begin with a unique identifier (for example, find_map	282	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	283	uses map_find and cf::map::load uses map_load).
		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
221		288
222	=cut	289	=cut
223		290
224	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
225		293
226	sub lock_wait($) {	294	sub lock_wait($) {
227	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
228		301
229	# wait for lock, if any	302	# wait for lock, if any
230	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;	305	Coro::schedule;
…		…
238		311
239	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
240	lock_wait $key;	313	lock_wait $key;
241		314
242	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
243		317
244	cf::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
245	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
247	}	322	}
248	}	323	}
249		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
		331	sub freeze_mainloop {
		332	return unless $TICK_WATCHER->is_active;
		333
		334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
		337	$TICK_WATCHER->stop;
		338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
250	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
251		400
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	401	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		403	thing you are allowed to do is call C<prio> on it.
254		404
255	=cut	405	=cut
256		406
257	sub async(&) {	407	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		408
266	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
267		410
268	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Deliantra requires that the main coroutine ($Coro::main)
269	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Deliantra is only
270	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
271		415
272	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
273	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
274	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
275	fast or be very important.	419	fast or be very important.
…		…
278		422
279	sub sync_job(&) {	423	sub sync_job(&) {
280	my ($job) = @_;	424	my ($job) = @_;
281		425
282	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
283	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
285		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
286	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
287	# (but this is cancel-safe)	435	# (but this is cancel-safe)
288	local $FREEZE = 1;	436	my $freeze_guard = freeze_mainloop;
289		437
290	my $busy = 1;	438	my $busy = 1;
291	my @res;	439	my @res;
292		440
293	(Coro::async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
294	@res = eval { $job->() };	443	@res = eval { $job->() };
295	warn $@ if $@;	444	warn $@ if $@;
296	undef $busy;	445	undef $busy;
297	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
298		447
299	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
300	Coro::cede_notself;	450	Coro::cede_notself;
301	Event::one_event unless Coro::nready;	451	} else {
		452	Event::one_event;
302	}	453	}
		454	}
		455
		456	$time = Event::time - $time;
		457
		458	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		459	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		460
		461	$tick_start += $time; # do not account sync jobs to server load
303		462
304	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
305	} else {	464	} else {
306	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
307		466
308	$job->()	467	$job->()
309	}	468	}
310	}	469	}
311		470
312	=item $coro = cf::coro { BLOCK }	471	=item $coro = cf::async_ext { BLOCK }
313		472
314	Creates and returns a new coro. This coro is automcatially being canceled	473	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	474	extension calling this is being unloaded.
316		475
317	=cut	476	=cut
318		477
319	sub coro(&) {	478	sub async_ext(&) {
320	my $cb = shift;	479	my $cb = shift;
321		480
322	my $coro = &cf::async ($cb);	481	my $coro = &Coro::async ($cb);
323		482
324	$coro->on_destroy (sub {	483	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	484	delete $EXT_CORO{$coro+0};
326	});	485	});
327	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
328		487
329	$coro	488	$coro
330	}	489	}
331		490
332	sub write_runtime {	491	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		492
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	493	Executes the given code block with the given arguments in a seperate
336	or return;	494	process, returning the results. Everything must be serialisable with
		495	Coro::Storable. May, of course, block. Note that the executed sub may
		496	never block itself or use any form of Event handling.
337		497
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	498	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		499
342	aio_fsync $fh	500	sub fork_call(&@) {
343	and return;	501	my ($cb, @args) = @_;
344		502
345	close $fh	503	# we seemingly have to make a local copy of the whole thing,
346	or return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
347		506
348	aio_rename "$runtime~", $runtime	507	my @res = Coro::Util::fork_eval {
349	and return;	508	reset_signals;
		509	&$cb
		510	}, @args;
350		511
		512	wantarray ? @res : $res[-1]
		513	}
		514
		515	=item $value = cf::db_get $family => $key
		516
		517	Returns a single value from the environment database.
		518
		519	=item cf::db_put $family => $key => $value
		520
		521	Stores the given C<$value> in the family. It can currently store binary
		522	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		523
		524	=item $db = cf::db_table "name"
		525
		526	Create and/or open a new database table. The string must not be "db" and must be unique
		527	within each server.
		528
		529	=cut
		530
		531	sub db_table($) {
		532	my ($name) = @_;
		533	my $db = BDB::db_create $DB_ENV;
		534
		535	eval {
		536	$db->set_flags (BDB::CHKSUM);
		537
		538	utf8::encode $name;
		539	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		540	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		541	cf::cleanup "db_open(db): $!" if $!;
		542	};
		543	cf::cleanup "db_open(db): $@" if $@;
		544
		545	$db
		546	}
		547
		548	our $DB;
		549
		550	sub db_init {
		551	cf::sync_job {
		552	$DB ||= db_table "db";
		553	};
		554	}
		555
		556	sub db_get($$) {
		557	my $key = "$_[0]/$_[1]";
		558
		559	cf::sync_job {
		560	BDB::db_get $DB, undef, $key, my $data;
		561
		562	$! ? ()
		563	: $data
351	1	564	}
		565	}
		566
		567	sub db_put($$$) {
		568	BDB::dbreq_pri 4;
		569	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		570	}
		571
		572	=item cf::cache $id => [$paths...], $processversion => $process
		573
		574	Generic caching function that returns the value of the resource $id,
		575	caching and regenerating as required.
		576
		577	This function can block.
		578
		579	=cut
		580
		581	sub cache {
		582	my ($id, $src, $processversion, $process) = @_;
		583
		584	my $meta =
		585	join "\x00",
		586	$processversion,
		587	map {
		588	aio_stat $_
		589	and Carp::croak "$_: $!";
		590
		591	($_, (stat _)[7,9])
		592	} @$src;
		593
		594	my $dbmeta = db_get cache => "$id/meta";
		595	if ($dbmeta ne $meta) {
		596	# changed, we may need to process
		597
		598	my @data;
		599	my $md5;
		600
		601	for (0 .. $#$src) {
		602	0 <= aio_load $src->[$_], $data[$_]
		603	or Carp::croak "$src->[$_]: $!";
		604	}
		605
		606	# if processing is expensive, check
		607	# checksum first
		608	if (1) {
		609	$md5 =
		610	join "\x00",
		611	$processversion,
		612	map {
		613	cf::cede_to_tick;
		614	($src->[$_], Digest::MD5::md5_hex $data[$_])
		615	} 0.. $#$src;
		616
		617
		618	my $dbmd5 = db_get cache => "$id/md5";
		619	if ($dbmd5 eq $md5) {
		620	db_put cache => "$id/meta", $meta;
		621
		622	return db_get cache => "$id/data";
		623	}
		624	}
		625
		626	my $t1 = Time::HiRes::time;
		627	my $data = $process->(\@data);
		628	my $t2 = Time::HiRes::time;
		629
		630	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		631
		632	db_put cache => "$id/data", $data;
		633	db_put cache => "$id/md5" , $md5;
		634	db_put cache => "$id/meta", $meta;
		635
		636	return $data;
		637	}
		638
		639	db_get cache => "$id/data"
		640	}
		641
		642	=item cf::datalog type => key => value, ...
		643
		644	Log a datalog packet of the given type with the given key-value pairs.
		645
		646	=cut
		647
		648	sub datalog($@) {
		649	my ($type, %kv) = @_;
		650	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	651	}
353		652
354	=back	653	=back
355		654
356	=cut	655	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477		656
478	#############################################################################	657	#############################################################################
479		658
480	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
481		660
…		…
483	attach callbacks/event handlers (a collection of which is called an "attachment")	662	attach callbacks/event handlers (a collection of which is called an "attachment")
484	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
485		664
486	In the following description, CLASS can be any of C<global>, C<object>	665	In the following description, CLASS can be any of C<global>, C<object>
487	C<player>, C<client> or C<map> (i.e. the attachable objects in	666	C<player>, C<client> or C<map> (i.e. the attachable objects in
488	crossfire+).	667	Deliantra).
489		668
490	=over 4	669	=over 4
491		670
492	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
493		672
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	787	our @CB_MAP = ();
609		788
610	my %attachment;	789	my %attachment;
611		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
612	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
614		799
615	use sort 'stable';	800	use sort 'stable';
616		801
…		…
650	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
651		836
652	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
653	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
654	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
655	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
656		841
657	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
658	my $pkg = shift @arg;	843	my $pkg = shift @arg;
659		844
660	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
689	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
690	}	875	}
691		876
692	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
693	} else {	878	} else {
694	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
695	}	880	}
696		881
697	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
698	}	883	}
699		884
…		…
701	if (ref $_[0]) {	886	if (ref $_[0]) {
702	_object_attach @_;	887	_object_attach @_;
703	} else {	888	} else {
704	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
705	}	890	}
		891	_recalc_want;
706	};	892	};
707		893
708	# all those should be optimised	894	# all those should be optimised
709	sub cf::attachable::detach {	895	sub cf::attachable::detach {
710	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
713	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
714	reattach ($obj);	900	reattach ($obj);
715	} else {	901	} else {
716	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
717	}	903	}
		904	_recalc_want;
718	};	905	};
719		906
720	sub cf::attachable::attached {	907	sub cf::attachable::attached {
721	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
722		909
…		…
737	";	924	";
738	die if $@;	925	die if $@;
739	}	926	}
740		927
741	our $override;	928	our $override;
742	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	929	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
743		930
744	sub override {	931	sub override {
745	$override = 1;	932	$override = 1;
746	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
747	}	934	}
748		935
749	sub do_invoke {	936	sub do_invoke {
750	my $event = shift;	937	my $event = shift;
751	my $callbacks = shift;	938	my $callbacks = shift;
752		939
753	@invoke_results = ();	940	@INVOKE_RESULTS = ();
754		941
755	local $override;	942	local $override;
756		943
757	for (@$callbacks) {	944	for (@$callbacks) {
758	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
775		962
776	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
777		964
778	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	965	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
779	removed in future versions), and there is no public API to access override	966	removed in future versions), and there is no public API to access override
780	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
781		968
782	=back	969	=back
783		970
784	=cut	971	=cut
785		972
786	#############################################################################	973	#############################################################################
787	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
788		1017
789	sub reattach {	1018	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		1023
793	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
794		1025
795	@$registry = ();	1026	@$registry = ();
796		1027
…		…
837	sub object_freezer_save {	1068	sub object_freezer_save {
838	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
839		1070
840	sync_job {	1071	sync_job {
841	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
842	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
843	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
844		1076
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
849	close $fh;	1081	close $fh;
850		1082
851	if (@$objs) {	1083	if (@$objs) {
852	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1084	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
853	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
856	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
857	close $fh;	1089	close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
859	}	1091	}
860	} else {	1092	} else {
861	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
867	}	1099	}
868	} else {	1100	} else {
869	aio_unlink $filename;	1101	aio_unlink $filename;
870	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
871	}	1103	}
872	}	1104	};
873	}	1105	}
874		1106
875	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
876	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
877		1109
…		…
889	or return;	1121	or return;
890		1122
891	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
892	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
893	or return;	1125	or return;
		1126
894	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
895	}	1129	}
896		1130
		1131	utf8::decode (my $decname = $filename);
897	warn sprintf "loading %s (%d)\n",	1132	warn sprintf "loading %s (%d,%d)\n",
898	$filename, length $data, scalar @{$av || []};#d#	1133	$decname, length $data, scalar @{$av || []};
		1134
899	return ($data, $av);	1135	($data, $av)
900	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
901		1143
902	#############################################################################	1144	#############################################################################
903	# command handling &c	1145	# command handling &c
904		1146
905	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
918	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
919	}	1161	}
920		1162
921	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
922		1164
923	Register a callbackf ro execution when the client sends an extcmd packet.	1165	Register a callback for execution when the client sends an (synchronous)
		1166	extcmd packet. Ext commands will be processed in the order they are
		1167	received by the server, like other user commands. The first argument is
		1168	the logged-in player. Ext commands can only be processed after a player
		1169	has logged in successfully.
924		1170
925	If the callback returns something, it is sent back as if reply was being	1171	If the callback returns something, it is sent back as if reply was being
926	called.	1172	called.
927		1173
		1174	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1175
		1176	Register a callback for execution when the client sends an (asynchronous)
		1177	exticmd packet. Exti commands are processed by the server as soon as they
		1178	are received, i.e. out of order w.r.t. other commands. The first argument
		1179	is a client socket. Exti commands can be received anytime, even before
		1180	log-in.
		1181
		1182	If the callback returns something, it is sent back as if reply was being
		1183	called.
		1184
928	=cut	1185	=cut
929		1186
930	sub register_extcmd {	1187	sub register_extcmd {
931	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
932		1189
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
937	}	1197	}
938		1198
939	cf::player->attach (	1199	cf::player->attach (
940	on_command => sub {	1200	on_command => sub {
941	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
950	cf::override;	1210	cf::override;
951	},	1211	},
952	on_extcmd => sub {	1212	on_extcmd => sub {
953	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
954		1214
955	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
956		1216
957	if (ref $msg) {	1217	if (ref $msg) {
		1218	my ($type, $reply, @payload) =
		1219	"ARRAY" eq ref $msg
		1220	? @$msg
		1221	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1222
		1223	my @reply;
		1224
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
960	$pl->ext_reply ($msg->{msgid}, %reply);
961	}
962	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
963	} else {	1232	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
965	}	1234	}
966		1235
967	cf::override;	1236	cf::override;
968	},	1237	},
969	);	1238	);
970		1239
971	sub register {
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	sub load_extension {	1240	sub load_extensions {
		1241	cf::sync_job {
		1242	my %todo;
		1243
		1244	for my $path (<$LIBDIR/*.ext>) {
		1245	next unless -r $path;
		1246
		1247	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1248	my $base = $1;
		1249	my $pkg = $1;
		1250	$pkg =~ s/[^[:word:]]/_/g;
		1251	$pkg = "ext::$pkg";
		1252
		1253	open my $fh, "<:utf8", $path
		1254	or die "$path: $!";
		1255
		1256	my $source = do { local $/; <$fh> };
		1257
		1258	my %ext = (
		1259	path => $path,
		1260	base => $base,
		1261	pkg => $pkg,
		1262	);
		1263
		1264	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1265	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1266
		1267	$ext{source} =
		1268	"package $pkg; use strict; use utf8;\n"
		1269	. "#line 1 \"$path\"\n{\n"
		1270	. $source
		1271	. "\n};\n1";
		1272
		1273	$todo{$base} = \%ext;
		1274	}
		1275
		1276	my %done;
		1277	while (%todo) {
		1278	my $progress;
		1279
		1280	while (my ($k, $v) = each %todo) {
		1281	for (split /,\s*/, $v->{meta}{depends}) {
		1282	goto skip
		1283	unless exists $done{$_};
		1284	}
		1285
		1286	warn "... loading '$k' into '$v->{pkg}'\n";
		1287
		1288	unless (eval $v->{source}) {
		1289	my $msg = $@ ? "$v->{path}: $@\n"
		1290	: "$v->{base}: extension inactive.\n";
		1291
		1292	if (exists $v->{meta}{mandatory}) {
		1293	warn $msg;
		1294	warn "mandatory extension failed to load, exiting.\n";
		1295	exit 1;
		1296	}
		1297
		1298	warn $msg;
		1299	}
		1300
		1301	$done{$k} = delete $todo{$k};
		1302	push @EXTS, $v->{pkg};
		1303	$progress = 1;
		1304	}
		1305
		1306	skip:
		1307	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1308	unless $progress;
		1309	}
		1310	};
		1311	}
		1312
		1313	#############################################################################
		1314
		1315	=back
		1316
		1317	=head2 CORE EXTENSIONS
		1318
		1319	Functions and methods that extend core crossfire objects.
		1320
		1321	=cut
		1322
		1323	package cf::player;
		1324
		1325	use Coro::AIO;
		1326
		1327	=head3 cf::player
		1328
		1329	=over 4
		1330
		1331	=item cf::player::num_playing
		1332
		1333	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1334
		1335	=cut
		1336
		1337	sub num_playing {
		1338	scalar grep
		1339	$_->ob->map
		1340	&& !$_->hidden
		1341	&& !$_->ob->flag (cf::FLAG_WIZ),
		1342	cf::player::list
		1343	}
		1344
		1345	=item cf::player::find $login
		1346
		1347	Returns the given player object, loading it if necessary (might block).
		1348
		1349	=cut
		1350
		1351	sub playerdir($) {
		1352	"$PLAYERDIR/"
		1353	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1354	}
		1355
		1356	sub path($) {
		1357	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1358
		1359	(playerdir $login) . "/playerdata"
		1360	}
		1361
		1362	sub find_active($) {
		1363	$cf::PLAYER{$_[0]}
		1364	and $cf::PLAYER{$_[0]}->active
		1365	and $cf::PLAYER{$_[0]}
		1366	}
		1367
		1368	sub exists($) {
		1369	my ($login) = @_;
		1370
		1371	$cf::PLAYER{$login}
		1372	or cf::sync_job { !aio_stat path $login }
		1373	}
		1374
		1375	sub find($) {
		1376	return $cf::PLAYER{$_[0]} || do {
		1377	my $login = $_[0];
		1378
		1379	my $guard = cf::lock_acquire "user_find:$login";
		1380
		1381	$cf::PLAYER{$_[0]} || do {
		1382	# rename old playerfiles to new ones
		1383	#TODO: remove when no longer required
		1384	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1385	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1386	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1387	aio_unlink +(playerdir $login) . "/$login.pl";
		1388
		1389	my $f = new_from_file cf::object::thawer path $login
		1390	or return;
		1391
		1392	my $pl = cf::player::load_pl $f
		1393	or return;
		1394	local $cf::PLAYER_LOADING{$login} = $pl;
		1395	$f->resolve_delayed_derefs;
		1396	$cf::PLAYER{$login} = $pl
		1397	}
		1398	}
		1399	}
		1400
		1401	sub save($) {
		1402	my ($pl) = @_;
		1403
		1404	return if $pl->{deny_save};
		1405
		1406	my $path = path $pl;
		1407	my $guard = cf::lock_acquire "user_save:$path";
		1408
		1409	return if $pl->{deny_save};
		1410
		1411	aio_mkdir playerdir $pl, 0770;
		1412	$pl->{last_save} = $cf::RUNTIME;
		1413
		1414	$pl->save_pl ($path);
		1415	cf::cede_to_tick;
		1416	}
		1417
		1418	sub new($) {
		1419	my ($login) = @_;
		1420
		1421	my $self = create;
		1422
		1423	$self->ob->name ($login);
		1424	$self->{deny_save} = 1;
		1425
		1426	$cf::PLAYER{$login} = $self;
		1427
		1428	$self
		1429	}
		1430
		1431	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1432
		1433	=cut
		1434
		1435	sub send_msg {
		1436	my $ns = shift->ns
		1437	or return;
		1438	$ns->send_msg (@_);
		1439	}
		1440
		1441	=item $pl->quit_character
		1442
		1443	Nukes the player without looking back. If logged in, the connection will
		1444	be destroyed. May block for a long time.
		1445
		1446	=cut
		1447
		1448	sub quit_character {
		1449	my ($pl) = @_;
		1450
		1451	my $name = $pl->ob->name;
		1452
		1453	$pl->{deny_save} = 1;
		1454	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1455
		1456	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1457	$pl->deactivate;
		1458	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1459	$pl->ns->destroy if $pl->ns;
		1460
		1461	my $path = playerdir $pl;
		1462	my $temp = "$path~$cf::RUNTIME~deleting~";
		1463	aio_rename $path, $temp;
		1464	delete $cf::PLAYER{$pl->ob->name};
		1465	$pl->destroy;
		1466
		1467	my $prefix = qr<^~\Q$name\E/>;
		1468
		1469	# nuke player maps
		1470	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1471
		1472	IO::AIO::aio_rmtree $temp;
		1473	}
		1474
		1475	=item $pl->kick
		1476
		1477	Kicks a player out of the game. This destroys the connection.
		1478
		1479	=cut
		1480
		1481	sub kick {
		1482	my ($pl, $kicker) = @_;
		1483
		1484	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1485	$pl->killer ("kicked");
		1486	$pl->ns->destroy;
		1487	}
		1488
		1489	=item cf::player::list_logins
		1490
		1491	Returns am arrayref of all valid playernames in the system, can take a
		1492	while and may block, so not sync_job-capable, ever.
		1493
		1494	=cut
		1495
		1496	sub list_logins {
		1497	my $dirs = aio_readdir $PLAYERDIR
		1498	or return [];
		1499
		1500	my @logins;
		1501
		1502	for my $login (@$dirs) {
		1503	my $path = path $login;
		1504
		1505	# a .pst is a dead give-away for a valid player
		1506	unless (-e "$path.pst") {
		1507	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1508	aio_read $fh, 0, 512, my $buf, 0 or next;
		1509	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1510	}
		1511
		1512	utf8::decode $login;
		1513	push @logins, $login;
		1514	}
		1515
		1516	\@logins
		1517	}
		1518
		1519	=item $player->maps
		1520
		1521	Returns an arrayref of map paths that are private for this
		1522	player. May block.
		1523
		1524	=cut
		1525
		1526	sub maps($) {
		1527	my ($pl) = @_;
		1528
		1529	$pl = ref $pl ? $pl->ob->name : $pl;
		1530
		1531	my $files = aio_readdir playerdir $pl
		1532	or return;
		1533
		1534	my @paths;
		1535
		1536	for (@$files) {
		1537	utf8::decode $_;
		1538	next if /\.(?:pl|pst)$/;
		1539	next unless /^$PATH_SEP/o;
		1540
		1541	push @paths, cf::map::normalise "~$pl/$_";
		1542	}
		1543
		1544	\@paths
		1545	}
		1546
		1547	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1548
		1549	Expand crossfire pod fragments into protocol xml.
		1550
		1551	=cut
		1552
		1553	use re 'eval';
		1554
		1555	my $group;
		1556	my $interior; $interior = qr{
		1557	# match a pod interior sequence sans C<< >>
		1558	(?:
		1559	\ (.*?)\ (?{ $group = $^N })
		1560	| < (??{$interior}) >
		1561	)
		1562	}x;
		1563
		1564	sub expand_cfpod {
		1565	my ($self, $pod) = @_;
		1566
		1567	my $xml;
		1568
		1569	while () {
		1570	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1571	$group = $1;
		1572
		1573	$group =~ s/&/&amp;/g;
		1574	$group =~ s/</&lt;/g;
		1575
		1576	$xml .= $group;
		1577	} elsif ($pod =~ m%\G
		1578	([BCGHITU])
		1579	<
		1580	(?:
		1581	([^<>]*) (?{ $group = $^N })
		1582	| < $interior >
		1583	)
		1584	>
		1585	%gcsx
		1586	) {
		1587	my ($code, $data) = ($1, $group);
		1588
		1589	if ($code eq "B") {
		1590	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1591	} elsif ($code eq "I") {
		1592	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1593	} elsif ($code eq "U") {
		1594	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1595	} elsif ($code eq "C") {
		1596	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1597	} elsif ($code eq "T") {
		1598	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1599	} elsif ($code eq "G") {
		1600	my ($male, $female) = split /\|/, $data;
		1601	$data = $self->gender ? $female : $male;
		1602	$xml .= expand_cfpod ($self, $data);
		1603	} elsif ($code eq "H") {
		1604	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1605	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1606	"")
		1607	[$self->{hintmode}];
		1608	} else {
		1609	$xml .= "error processing '$code($data)' directive";
		1610	}
		1611	} else {
		1612	if ($pod =~ /\G(.+)/) {
		1613	warn "parse error while expanding $pod (at $1)";
		1614	}
		1615	last;
		1616	}
		1617	}
		1618
		1619	for ($xml) {
		1620	# create single paragraphs (very hackish)
		1621	s/(?<=\S)\n(?=\w)/ /g;
		1622
		1623	# compress some whitespace
		1624	s/\s+\n/\n/g; # ws line-ends
		1625	s/\n\n+/\n/g; # double lines
		1626	s/^\n+//; # beginning lines
		1627	s/\n+$//; # ending lines
		1628	}
		1629
		1630	$xml
		1631	}
		1632
		1633	no re 'eval';
		1634
		1635	sub hintmode {
		1636	$_[0]{hintmode} = $_[1] if @_ > 1;
		1637	$_[0]{hintmode}
		1638	}
		1639
		1640	=item $player->ext_reply ($msgid, @msg)
		1641
		1642	Sends an ext reply to the player.
		1643
		1644	=cut
		1645
		1646	sub ext_reply($$@) {
		1647	my ($self, $id, @msg) = @_;
		1648
		1649	$self->ns->ext_reply ($id, @msg)
		1650	}
		1651
		1652	=item $player->ext_msg ($type, @msg)
		1653
		1654	Sends an ext event to the client.
		1655
		1656	=cut
		1657
		1658	sub ext_msg($$@) {
		1659	my ($self, $type, @msg) = @_;
		1660
		1661	$self->ns->ext_msg ($type, @msg);
		1662	}
		1663
		1664	=head3 cf::region
		1665
		1666	=over 4
		1667
		1668	=cut
		1669
		1670	package cf::region;
		1671
		1672	=item cf::region::find_by_path $path
		1673
		1674	Tries to decuce the likely region for a map knowing only its path.
		1675
		1676	=cut
		1677
		1678	sub find_by_path($) {
978	my ($path) = @_;	1679	my ($path) = @_;
979		1680
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1681	my ($match, $specificity);
981	my $base = $1;
982	my $pkg = $1;
983	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";
985		1682
986	warn "loading '$path' into '$pkg'\n";	1683	for my $region (list) {
987		1684	if ($region->{match} && $path =~ $region->{match}) {
988	open my $fh, "<:utf8", $path	1685	($match, $specificity) = ($region, $region->specificity)
989	or die "$path: $!";	1686	if $region->specificity > $specificity;
990		1687	}
991	my $source =
992	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })
995	. "\n};\n1";
996
997	eval $source
998	or die $@ ? "$path: $@\n"
999	: "extension disabled.\n";
1000
1001	push @exts, $pkg;
1002	$ext_pkg{$base} = $pkg;
1003
1004	# no strict 'refs';
1005	# @{"$pkg\::ISA"} = ext::;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }	1688	}
1020		1689
1021	# remove commands	1690	$match
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}
1030	}
1031
1032	# remove extcmds
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}
1046
1047	sub load_extensions {
1048	for my $ext (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;
1050	eval {
1051	load_extension $ext;
1052	1
1053	} or warn "$ext not loaded: $@";
1054	}
1055	}
1056
1057	#############################################################################
1058	# load/save/clean perl data associated with a map
1059
1060	*cf::mapsupport::on_clean = sub {
1061	my ($map) = @_;
1062
1063	my $path = $map->tmpname;
1064	defined $path or return;
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}
1077
1078	# TODO: compatibility cruft, remove when no longer needed
1079	cf::player->attach (
1080	on_load => sub {
1081	my ($pl, $path) = @_;
1082
1083	for my $o (all_objects $pl->ob) {
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1085	$o->set_ob_key_value ("_perl_data");
1086
1087	%$o = %{ Storable::thaw pack "H*", $value };
1088	}
1089	}
1090	},
1091	);
1092
1093	#############################################################################
1094
1095	=head2 CORE EXTENSIONS
1096
1097	Functions and methods that extend core crossfire objects.
1098
1099	=head3 cf::player
1100
1101	=over 4
1102
1103	=item cf::player::exists $login
1104
1105	Returns true when the given account exists.
1106
1107	=cut
1108
1109	sub cf::player::exists($) {
1110	cf::player::find $_[0]
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1112	}
1113
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)
1115
1116	Sends an ext reply to the player.
1117
1118	=cut
1119
1120	sub cf::player::ext_reply($$$%) {
1121	my ($self, $id, %msg) = @_;
1122
1123	$msg{msgid} = $id;
1124
1125	$self->send ("ext " . to_json \%msg);
1126	}	1691	}
1127		1692
1128	=back	1693	=back
1129
1130		1694
1131	=head3 cf::map	1695	=head3 cf::map
1132		1696
1133	=over 4	1697	=over 4
1134		1698
…		…
1137	package cf::map;	1701	package cf::map;
1138		1702
1139	use Fcntl;	1703	use Fcntl;
1140	use Coro::AIO;	1704	use Coro::AIO;
1141		1705
		1706	use overload
		1707	'""' => \&as_string,
		1708	fallback => 1;
		1709
1142	our $MAX_RESET = 7200;	1710	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1711	our $DEFAULT_RESET = 3000;
1144		1712
1145	sub generate_random_map {	1713	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1714	my ($self, $rmp) = @_;
1147
1148	# mit "rum" bekleckern, nicht	1715	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1716	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1717	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1718	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1719	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1720	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1721	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1722	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1723	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1724	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1725	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1726	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(cf::region::find $rmp->{region})	1727	(cf::region::find $rmp->{region}), $rmp->{custom}
		1728	)
		1729	}
		1730
		1731	=item cf::map->register ($regex, $prio)
		1732
		1733	Register a handler for the map path matching the given regex at the
		1734	givne priority (higher is better, built-in handlers have priority 0, the
		1735	default).
		1736
		1737	=cut
		1738
		1739	sub register {
		1740	my (undef, $regex, $prio) = @_;
		1741	my $pkg = caller;
		1742
		1743	no strict;
		1744	push @{"$pkg\::ISA"}, __PACKAGE__;
		1745
		1746	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1747	}
		1748
		1749	# also paths starting with '/'
		1750	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1751
		1752	sub thawer_merge {
		1753	my ($self, $merge) = @_;
		1754
		1755	# we have to keep some variables in memory intact
		1756	local $self->{path};
		1757	local $self->{load_path};
		1758
		1759	$self->SUPER::thawer_merge ($merge);
		1760	}
		1761
		1762	sub normalise {
		1763	my ($path, $base) = @_;
		1764
		1765	$path = "$path"; # make sure its a string
		1766
		1767	$path =~ s/\.map$//;
		1768
		1769	# map plan:
		1770	#
		1771	# /! non-realised random map exit (special hack!)
		1772	# {... are special paths that are not being touched
		1773	# ?xxx/... are special absolute paths
		1774	# ?random/... random maps
		1775	# /... normal maps
		1776	# ~user/... per-player map of a specific user
		1777
		1778	$path =~ s/$PATH_SEP/\//go;
		1779
		1780	# treat it as relative path if it starts with
		1781	# something that looks reasonable
		1782	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1783	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1784
		1785	$base =~ s{[^/]+/?$}{};
		1786	$path = "$base/$path";
		1787	}
		1788
		1789	for ($path) {
		1790	redo if s{//}{/};
		1791	redo if s{/\.?/}{/};
		1792	redo if s{/[^/]+/\.\./}{/};
		1793	}
		1794
		1795	$path
		1796	}
		1797
		1798	sub new_from_path {
		1799	my (undef, $path, $base) = @_;
		1800
		1801	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1802
		1803	$path = normalise $path, $base;
		1804
		1805	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1806	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1807	my $self = bless cf::map::new, $pkg;
		1808	$self->{path} = $path; $self->path ($path);
		1809	$self->init; # pass $1 etc.
		1810	return $self;
		1811	}
		1812	}
		1813
		1814	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1815	()
		1816	}
		1817
		1818	sub init {
		1819	my ($self) = @_;
		1820
		1821	$self
		1822	}
		1823
		1824	sub as_string {
		1825	my ($self) = @_;
		1826
		1827	"$self->{path}"
		1828	}
		1829
		1830	# the displayed name, this is a one way mapping
		1831	sub visible_name {
		1832	&as_string
		1833	}
		1834
		1835	# the original (read-only) location
		1836	sub load_path {
		1837	my ($self) = @_;
		1838
		1839	"$MAPDIR/$self->{path}.map"
		1840	}
		1841
		1842	# the temporary/swap location
		1843	sub save_path {
		1844	my ($self) = @_;
		1845
		1846	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1847	"$TMPDIR/$path.map"
		1848	}
		1849
		1850	# the unique path, undef == no special unique path
		1851	sub uniq_path {
		1852	my ($self) = @_;
		1853
		1854	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1855	"$UNIQUEDIR/$path"
1162	}	1856	}
1163		1857
1164	# and all this just because we cannot iterate over	1858	# and all this just because we cannot iterate over
1165	# all maps in C++...	1859	# all maps in C++...
1166	sub change_all_map_light {	1860	sub change_all_map_light {
…		…
1168		1862
1169	$_->change_map_light ($change)	1863	$_->change_map_light ($change)
1170	for grep $_->outdoor, values %cf::MAP;	1864	for grep $_->outdoor, values %cf::MAP;
1171	}	1865	}
1172		1866
		1867	sub decay_objects {
		1868	my ($self) = @_;
		1869
		1870	return if $self->{deny_reset};
		1871
		1872	$self->do_decay_objects;
		1873	}
		1874
		1875	sub unlink_save {
		1876	my ($self) = @_;
		1877
		1878	utf8::encode (my $save = $self->save_path);
		1879	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1880	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1881	}
		1882
1173	sub try_load_header($) {	1883	sub load_header_from($) {
1174	my ($path) = @_;	1884	my ($self, $path) = @_;
1175		1885
1176	utf8::encode $path;	1886	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1887	my $f = new_from_file cf::object::thawer $path
1178	or return;	1888	or return;
1179		1889
1180	my $map = cf::map::new	1890	$self->_load_header ($f)
1181	or return;	1891	or return;
1182		1892
1183	$map->load_header ($path)	1893	local $MAP_LOADING{$self->{path}} = $self;
		1894	$f->resolve_delayed_derefs;
		1895
		1896	$self->{load_path} = $path;
		1897
		1898	1
		1899	}
		1900
		1901	sub load_header_orig {
		1902	my ($self) = @_;
		1903
		1904	$self->load_header_from ($self->load_path)
		1905	}
		1906
		1907	sub load_header_temp {
		1908	my ($self) = @_;
		1909
		1910	$self->load_header_from ($self->save_path)
		1911	}
		1912
		1913	sub prepare_temp {
		1914	my ($self) = @_;
		1915
		1916	$self->last_access ((delete $self->{last_access})
		1917	|| $cf::RUNTIME); #d#
		1918	# safety
		1919	$self->{instantiate_time} = $cf::RUNTIME
		1920	if $self->{instantiate_time} > $cf::RUNTIME;
		1921	}
		1922
		1923	sub prepare_orig {
		1924	my ($self) = @_;
		1925
		1926	$self->{load_original} = 1;
		1927	$self->{instantiate_time} = $cf::RUNTIME;
		1928	$self->last_access ($cf::RUNTIME);
		1929	$self->instantiate;
		1930	}
		1931
		1932	sub load_header {
		1933	my ($self) = @_;
		1934
		1935	if ($self->load_header_temp) {
		1936	$self->prepare_temp;
		1937	} else {
		1938	$self->load_header_orig
1184	or return;	1939	or return;
		1940	$self->prepare_orig;
		1941	}
1185		1942
1186	$map->{load_path} = $path;	1943	$self->{deny_reset} = 1
		1944	if $self->no_reset;
1187		1945
1188	$map	1946	$self->default_region (cf::region::find_by_path $self->{path})
1189	}	1947	unless $self->default_region;
1190		1948
		1949	1
		1950	}
		1951
1191	sub find_map;	1952	sub find;
1192	sub find_map {	1953	sub find {
1193	my ($path, $origin) = @_;	1954	my ($path, $origin) = @_;
1194		1955
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	1956	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		1957
		1958	cf::lock_wait "map_data:$path";#d#remove
1200	cf::lock_wait "map_find:$key";	1959	cf::lock_wait "map_find:$path";
1201		1960
1202	$cf::MAP{$key} || do {	1961	$cf::MAP{$path} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	1962	my $guard1 = cf::lock_acquire "map_find:$path";
		1963	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1204		1964
1205	# do it the slow way	1965	my $map = new_from_path cf::map $path
1206	my $map = try_load_header $path->save_path;
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	1966	or return;
1220		1967
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	1968	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		1969
1234	if ($map->should_reset) {	1970	$map->load_header
		1971	or return;
		1972
		1973	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1974	# doing this can freeze the server in a sync job, obviously
		1975	#$cf::WAIT_FOR_TICK->wait;
		1976	undef $guard1;
		1977	undef $guard2;
1235	$map->reset;	1978	$map->reset;
1236	undef $guard;	1979	return find $path;
1237	$map = find_map $path
1238	or return;
1239	}	1980	}
1240		1981
1241	$cf::MAP{$key} = $map	1982	$cf::MAP{$path} = $map
1242	}	1983	}
1243	}	1984	}
		1985
		1986	sub pre_load { }
		1987	sub post_load { }
1244		1988
1245	sub load {	1989	sub load {
1246	my ($self) = @_;	1990	my ($self) = @_;
1247		1991
		1992	local $self->{deny_reset} = 1; # loading can take a long time
		1993
1248	my $path = $self->{path};	1994	my $path = $self->{path};
		1995
		1996	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1997	my $guard = cf::lock_acquire "map_data:$path";
1250		1998
		1999	return unless $self->valid;
1251	return if $self->in_memory != cf::MAP_SWAPPED;	2000	return unless $self->in_memory == cf::MAP_SWAPPED;
1252		2001
1253	$self->in_memory (cf::MAP_LOADING);	2002	$self->in_memory (cf::MAP_LOADING);
1254		2003
1255	$self->alloc;	2004	$self->alloc;
1256	$self->load_objects ($self->{load_path}, 1)	2005
		2006	$self->pre_load;
		2007	cf::cede_to_tick;
		2008
		2009	my $f = new_from_file cf::object::thawer $self->{load_path};
		2010	$f->skip_block;
		2011	$self->_load_objects ($f)
1257	or return;	2012	or return;
1258		2013
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2014	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260	if delete $self->{load_original};	2015	if delete $self->{load_original};
1261		2016
1262	if (my $uniq = $path->uniq_path) {	2017	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	2018	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	2019	unless (aio_stat $uniq) {
		2020	if (my $f = new_from_file cf::object::thawer $uniq) {
1265	$self->clear_unique_items;	2021	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	2022	$self->_load_objects ($f);
		2023	$f->resolve_delayed_derefs;
		2024	}
1267	}	2025	}
1268	}	2026	}
1269		2027
		2028	$f->resolve_delayed_derefs;
		2029
		2030	cf::cede_to_tick;
1270	# now do the right thing for maps	2031	# now do the right thing for maps
1271	$self->link_multipart_objects;	2032	$self->link_multipart_objects;
1272
1273	if ($self->{path}->is_style_map) {
1274	$self->{deny_save} = 1;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;
1280	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	2033	$self->difficulty ($self->estimate_difficulty)
1282	unless $self->difficulty;	2034	unless $self->difficulty;
		2035	cf::cede_to_tick;
		2036
		2037	unless ($self->{deny_activate}) {
		2038	$self->decay_objects;
		2039	$self->fix_auto_apply;
		2040	$self->update_buttons;
		2041	cf::cede_to_tick;
		2042	$self->set_darkness_map;
		2043	cf::cede_to_tick;
1283	$self->activate;	2044	$self->activate;
1284	}	2045	}
1285		2046
		2047	$self->{last_save} = $cf::RUNTIME;
		2048	$self->last_access ($cf::RUNTIME);
		2049
1286	$self->in_memory (cf::MAP_IN_MEMORY);	2050	$self->in_memory (cf::MAP_IN_MEMORY);
1287	}	2051	}
1288		2052
1289	sub load_map_sync {	2053	$self->post_load;
		2054	}
		2055
		2056	sub customise_for {
		2057	my ($self, $ob) = @_;
		2058
		2059	return find "~" . $ob->name . "/" . $self->{path}
		2060	if $self->per_player;
		2061
		2062	# return find "?party/" . $ob->name . "/" . $self->{path}
		2063	# if $self->per_party;
		2064
		2065	$self
		2066	}
		2067
		2068	# find and load all maps in the 3x3 area around a map
		2069	sub load_neighbours {
		2070	my ($map) = @_;
		2071
		2072	my @neigh; # diagonal neighbours
		2073
		2074	for (0 .. 3) {
		2075	my $neigh = $map->tile_path ($_)
		2076	or next;
		2077	$neigh = find $neigh, $map
		2078	or next;
		2079	$neigh->load;
		2080
		2081	push @neigh,
		2082	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2083	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2084	}
		2085
		2086	for (grep defined $_->[0], @neigh) {
		2087	my ($path, $origin) = @$_;
		2088	my $neigh = find $path, $origin
		2089	or next;
		2090	$neigh->load;
		2091	}
		2092	}
		2093
		2094	sub find_sync {
1290	my ($path, $origin) = @_;	2095	my ($path, $origin) = @_;
1291		2096
1292	#warn "load_map_sync<$path, $origin>\n";#d#	2097	cf::sync_job { find $path, $origin }
		2098	}
1293		2099
1294	cf::sync_job {	2100	sub do_load_sync {
1295	my $map = cf::map::find_map $path, $origin	2101	my ($map) = @_;
1296	or return;	2102
1297	$map->load;	2103	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1298	$map	2104	if $Coro::current == $Coro::main;
		2105
		2106	cf::sync_job { $map->load };
		2107	}
		2108
		2109	our %MAP_PREFETCH;
		2110	our $MAP_PREFETCHER = undef;
		2111
		2112	sub find_async {
		2113	my ($path, $origin, $load) = @_;
		2114
		2115	$path = normalise $path, $origin && $origin->{path};
		2116
		2117	if (my $map = $cf::MAP{$path}) {
		2118	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2119	}
		2120
		2121	$MAP_PREFETCH{$path} |= $load;
		2122
		2123	$MAP_PREFETCHER ||= cf::async {
		2124	$Coro::current->{desc} = "map prefetcher";
		2125
		2126	while (%MAP_PREFETCH) {
		2127	while (my ($k, $v) = each %MAP_PREFETCH) {
		2128	if (my $map = find $k) {
		2129	$map->load if $v;
		2130	}
		2131
		2132	delete $MAP_PREFETCH{$k};
		2133	}
		2134	}
		2135	undef $MAP_PREFETCHER;
1299	}	2136	};
		2137	$MAP_PREFETCHER->prio (6);
		2138
		2139	()
1300	}	2140	}
1301		2141
1302	sub save {	2142	sub save {
1303	my ($self) = @_;	2143	my ($self) = @_;
1304		2144
		2145	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2146
1305	$self->{last_save} = $cf::RUNTIME;	2147	$self->{last_save} = $cf::RUNTIME;
1306		2148
1307	return unless $self->dirty;	2149	return unless $self->dirty;
1308		2150
1309	my $save = $self->{path}->save_path; utf8::encode $save;	2151	my $save = $self->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2152	my $uniq = $self->uniq_path; utf8::encode $uniq;
1311		2153
1312	$self->{load_path} = $save;	2154	$self->{load_path} = $save;
1313		2155
1314	return if $self->{deny_save};	2156	return if $self->{deny_save};
1315		2157
		2158	local $self->{last_access} = $self->last_access;#d#
		2159
		2160	cf::async {
		2161	$Coro::current->{desc} = "map player save";
		2162	$_->contr->save for $self->players;
		2163	};
		2164
1316	if ($uniq) {	2165	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2166	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	2167	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	2168	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2169	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	2170	}
1322	}	2171	}
1323		2172
1324	sub swap_out {	2173	sub swap_out {
1325	my ($self) = @_;	2174	my ($self) = @_;
1326		2175
1327	# save first because save cedes	2176	# save first because save cedes
1328	$self->save;	2177	$self->save;
		2178
		2179	my $lock = cf::lock_acquire "map_data:$self->{path}";
1329		2180
1330	return if $self->players;	2181	return if $self->players;
1331	return if $self->in_memory != cf::MAP_IN_MEMORY;	2182	return if $self->in_memory != cf::MAP_IN_MEMORY;
1332	return if $self->{deny_save};	2183	return if $self->{deny_save};
1333		2184
		2185	$self->in_memory (cf::MAP_SWAPPED);
		2186
		2187	$self->deactivate;
		2188	$_->clear_links_to ($self) for values %cf::MAP;
1334	$self->clear;	2189	$self->clear;
1335	$self->in_memory (cf::MAP_SWAPPED);
1336	}	2190	}
1337		2191
1338	sub reset_at {	2192	sub reset_at {
1339	my ($self) = @_;	2193	my ($self) = @_;
1340		2194
1341	# TODO: safety, remove and allow resettable per-player maps	2195	# TODO: safety, remove and allow resettable per-player maps
1342	return 1e99 if $self->{path}{user_rel};
1343	return 1e99 if $self->{deny_reset};	2196	return 1e99 if $self->{deny_reset};
1344		2197
1345	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2198	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1346	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2199	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1347		2200
…		…
1352	my ($self) = @_;	2205	my ($self) = @_;
1353		2206
1354	$self->reset_at <= $cf::RUNTIME	2207	$self->reset_at <= $cf::RUNTIME
1355	}	2208	}
1356		2209
1357	sub unlink_save {
1358	my ($self) = @_;
1359
1360	utf8::encode (my $save = $self->{path}->save_path);
1361	aioreq_pri 3; IO::AIO::aio_unlink $save;
1362	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1363	}
1364
1365	sub rename {
1366	my ($self, $new_path) = @_;
1367
1368	$self->unlink_save;
1369
1370	delete $cf::MAP{$self->path};
1371	$self->{path} = new cf::path $new_path;
1372	$self->path ($self->{path}->as_string);
1373	$cf::MAP{$self->path} = $self;
1374
1375	$self->save;
1376	}
1377
1378	sub reset {	2210	sub reset {
1379	my ($self) = @_;	2211	my ($self) = @_;
1380		2212
		2213	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2214
1381	return if $self->players;	2215	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		2216
1384	warn "resetting map ", $self->path;#d#	2217	warn "resetting map ", $self->path;
		2218
		2219	$self->in_memory (cf::MAP_SWAPPED);
		2220
		2221	# need to save uniques path
		2222	unless ($self->{deny_save}) {
		2223	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2224
		2225	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2226	if $uniq;
		2227	}
1385		2228
1386	delete $cf::MAP{$self->path};	2229	delete $cf::MAP{$self->path};
1387		2230
		2231	$self->deactivate;
1388	$_->clear_links_to ($self) for values %cf::MAP;	2232	$_->clear_links_to ($self) for values %cf::MAP;
		2233	$self->clear;
1389		2234
1390	$self->unlink_save;	2235	$self->unlink_save;
1391	$self->destroy;	2236	$self->destroy;
1392	}	2237	}
1393		2238
1394	my $nuke_counter = "aaaa";	2239	my $nuke_counter = "aaaa";
1395		2240
1396	sub nuke {	2241	sub nuke {
1397	my ($self) = @_;	2242	my ($self) = @_;
1398		2243
		2244	{
		2245	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2246
		2247	delete $cf::MAP{$self->path};
		2248
		2249	$self->unlink_save;
		2250
		2251	bless $self, "cf::map";
		2252	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2253	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2254	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2255	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2256
		2257	$cf::MAP{$self->path} = $self;
		2258	}
		2259
1402	$self->reset; # polite request, might not happen	2260	$self->reset; # polite request, might not happen
1403	}	2261	}
1404		2262
1405	sub customise_for {	2263	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2264
1408	if ($map->per_player) {	2265	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2266	maps. May block.
		2267
		2268	=cut
		2269
		2270	sub tmp_maps() {
1410	}	2271	[
1411		2272	map {
1412	$map	2273	utf8::decode $_;
		2274	/\.map$/
		2275	? normalise $_
		2276	: ()
		2277	} @{ aio_readdir $TMPDIR or [] }
		2278	]
1413	}	2279	}
1414		2280
1415	sub emergency_save {	2281	=item $maps = cf::map::random_maps
1416	local $cf::FREEZE = 1;
1417		2282
1418	warn "enter emergency map save\n";	2283	Returns an arrayref with all map paths of currently instantiated and saved
		2284	random maps. May block.
1419		2285
1420	cf::sync_job {	2286	=cut
1421	warn "begin emergency map save\n";
1422	$_->save for values %cf::MAP;
1423	};
1424		2287
1425	warn "end emergency map save\n";	2288	sub random_maps() {
		2289	[
		2290	map {
		2291	utf8::decode $_;
		2292	/\.map$/
		2293	? normalise "?random/$_"
		2294	: ()
		2295	} @{ aio_readdir $RANDOMDIR or [] }
		2296	]
		2297	}
		2298
		2299	=item cf::map::unique_maps
		2300
		2301	Returns an arrayref of paths of all shared maps that have
		2302	instantiated unique items. May block.
		2303
		2304	=cut
		2305
		2306	sub unique_maps() {
		2307	[
		2308	map {
		2309	utf8::decode $_;
		2310	/\.map$/
		2311	? normalise $_
		2312	: ()
		2313	} @{ aio_readdir $UNIQUEDIR or [] }
		2314	]
1426	}	2315	}
1427		2316
1428	package cf;	2317	package cf;
1429		2318
1430	=back	2319	=back
1431		2320
		2321	=head3 cf::object
		2322
		2323	=cut
		2324
		2325	package cf::object;
		2326
		2327	=over 4
		2328
		2329	=item $ob->inv_recursive
		2330
		2331	Returns the inventory of the object _and_ their inventories, recursively.
		2332
		2333	=cut
		2334
		2335	sub inv_recursive_;
		2336	sub inv_recursive_ {
		2337	map { $_, inv_recursive_ $_->inv } @_
		2338	}
		2339
		2340	sub inv_recursive {
		2341	inv_recursive_ inv $_[0]
		2342	}
		2343
		2344	=item $ref = $ob->ref
		2345
		2346	creates and returns a persistent reference to an objetc that can be stored as a string.
		2347
		2348	=item $ob = cf::object::deref ($refstring)
		2349
		2350	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2351	even if the object actually exists. May block.
		2352
		2353	=cut
		2354
		2355	sub deref {
		2356	my ($ref) = @_;
		2357
		2358	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2359	my ($uuid, $name) = ($1, $2);
		2360	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2361	or return;
		2362	$pl->ob->uuid eq $uuid
		2363	or return;
		2364
		2365	$pl->ob
		2366	} else {
		2367	warn "$ref: cannot resolve object reference\n";
		2368	undef
		2369	}
		2370	}
		2371
		2372	package cf;
		2373
		2374	=back
1432		2375
1433	=head3 cf::object::player	2376	=head3 cf::object::player
1434		2377
1435	=over 4	2378	=over 4
1436		2379
…		…
1450		2393
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2394	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2395
1453	if ($self->{record_replies}) {	2396	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2397	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2398
1455	} else {	2399	} else {
		2400	my $pl = $self->contr;
		2401
		2402	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2403	my $dialog = $pl->{npc_dialog};
		2404	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2405
		2406	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2407	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2408	$self->message ($msg, $flags);
		2409	}
1458	}	2410	}
		2411	}
		2412
		2413	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2414
		2415	=cut
		2416
		2417	sub cf::object::send_msg {
		2418	my $pl = shift->contr
		2419	or return;
		2420	$pl->send_msg (@_);
1459	}	2421	}
1460		2422
1461	=item $player_object->may ("access")	2423	=item $player_object->may ("access")
1462		2424
1463	Returns wether the given player is authorized to access resource "access"	2425	Returns wether the given player is authorized to access resource "access"
…		…
1476		2438
1477	=item $player_object->enter_link	2439	=item $player_object->enter_link
1478		2440
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2441	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2442
1481	The player should be reaosnably safe there for short amounts of time. You	2443	The player should be reasonably safe there for short amounts of time. You
1482	I<MUST> call C<leave_link> as soon as possible, though.	2444	I<MUST> call C<leave_link> as soon as possible, though.
1483		2445
		2446	Will never block.
		2447
1484	=item $player_object->leave_link ($map, $x, $y)	2448	=item $player_object->leave_link ($map, $x, $y)
1485		2449
1486	Moves the player out of the specila link map onto the given map. If the	2450	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2451	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2452	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2453	fails, to the emergency map position.
1490		2454
1491	Might block.	2455	Might block.
1492		2456
1493	=cut	2457	=cut
		2458
		2459	sub link_map {
		2460	unless ($LINK_MAP) {
		2461	$LINK_MAP = cf::map::find "{link}"
		2462	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2463	$LINK_MAP->load;
		2464	}
		2465
		2466	$LINK_MAP
		2467	}
1494		2468
1495	sub cf::object::player::enter_link {	2469	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2470	my ($self) = @_;
1497		2471
1498	$self->deactivate_recursive;	2472	$self->deactivate_recursive;
1499		2473
1500	return if $self->map == $LINK_MAP;	2474	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2475
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2476	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2477	if $self->map && $self->map->{path} ne "{link}";
1504		2478
1505	$self->enter_map ($LINK_MAP, 20, 20);	2479	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	2480	}
1507		2481
1508	sub cf::object::player::leave_link {	2482	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2483	my ($self, $map, $x, $y) = @_;
		2484
		2485	return unless $self->contr->active;
1510		2486
1511	my $link_pos = delete $self->{_link_pos};	2487	my $link_pos = delete $self->{_link_pos};
1512		2488
1513	unless ($map) {	2489	unless ($map) {
1514	# restore original map position	2490	# restore original map position
1515	($map, $x, $y) = @{ $link_pos || [] };	2491	($map, $x, $y) = @{ $link_pos || [] };
1516	$map = cf::map::find_map $map;	2492	$map = cf::map::find $map;
1517		2493
1518	unless ($map) {	2494	unless ($map) {
1519	($map, $x, $y) = @$EMERGENCY_POSITION;	2495	($map, $x, $y) = @$EMERGENCY_POSITION;
1520	$map = cf::map::find_map $map	2496	$map = cf::map::find $map
1521	or die "FATAL: cannot load emergency map\n";	2497	or die "FATAL: cannot load emergency map\n";
1522	}	2498	}
1523	}	2499	}
1524		2500
1525	($x, $y) = (-1, -1)	2501	($x, $y) = (-1, -1)
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	2504	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2505	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2506	if $x <=0 && $y <= 0;
1531		2507
1532	$map->load;	2508	$map->load;
		2509	$map->load_neighbours;
1533		2510
		2511	return unless $self->contr->active;
1534	$self->activate_recursive;	2512	$self->activate_recursive;
		2513
		2514	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	2515	$self->enter_map ($map, $x, $y);
1536	}	2516	}
1537		2517
1538	cf::player->attach (	2518	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1539	on_logout => sub {
1540	my ($pl) = @_;
1541		2519
1542	# abort map switching before logout	2520	Moves the player to the given map-path and coordinates by first freezing
1543	if ($pl->ob->{_link_pos}) {	2521	her, loading and preparing them map, calling the provided $check callback
1544	cf::sync_job {	2522	that has to return the map if sucecssful, and then unfreezes the player on
1545	$pl->ob->leave_link	2523	the new (success) or old (failed) map position. In either case, $done will
1546	};	2524	be called at the end of this process.
1547	}
1548	},
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2525
1552	# try to abort aborted map switching on player login :)
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555	$pl->ob->enter_link;
1556	cf::async {
1557	# we need this sleep as the login has a concurrent enter_exit running
1558	# and this sleep increases chances of the player not ending up in scorn
1559	Coro::Timer::sleep 1;
1560	$pl->ob->leave_link;
1561	};
1562	}
1563	},
1564	);
1565
1566	=item $player_object->goto_map ($path, $x, $y)
1567
1568	=cut	2526	=cut
1569		2527
		2528	our $GOTOGEN;
		2529
1570	sub cf::object::player::goto_map {	2530	sub cf::object::player::goto {
1571	my ($self, $path, $x, $y) = @_;	2531	my ($self, $path, $x, $y, $check, $done) = @_;
		2532
		2533	# do generation counting so two concurrent goto's will be executed in-order
		2534	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1572		2535
1573	$self->enter_link;	2536	$self->enter_link;
1574		2537
1575	(cf::async {	2538	(async {
1576	$path = new cf::path $path;	2539	$Coro::current->{desc} = "player::goto $path $x $y";
1577		2540
1578	my $map = cf::map::find_map $path->as_string;	2541	# *tag paths override both path and x|y
		2542	if ($path =~ /^\*(.*)$/) {
		2543	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2544	my $ob = $obs[rand @obs];
		2545
		2546	# see if we actually can go there
		2547	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2548	$ob = $obs[rand @obs];
		2549	} else {
		2550	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2551	}
		2552	# else put us there anyways for now #d#
		2553
		2554	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2555	} else {
		2556	($path, $x, $y) = (undef, undef, undef);
		2557	}
		2558	}
		2559
		2560	my $map = eval {
		2561	my $map = defined $path ? cf::map::find $path : undef;
		2562
		2563	if ($map) {
1579	$map = $map->customise_for ($self) if $map;	2564	$map = $map->customise_for ($self);
1580		2565	$map = $check->($map) if $check && $map;
1581	# warn "entering ", $map->path, " at ($x, $y)\n"	2566	} else {
1582	# if $map;
1583
1584	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2567	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2568	}
1585		2569
		2570	$map
		2571	};
		2572
		2573	if ($@) {
		2574	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2575	LOG llevError | logBacktrace, Carp::longmess $@;
		2576	}
		2577
		2578	if ($gen == $self->{_goto_generation}) {
		2579	delete $self->{_goto_generation};
1586	$self->leave_link ($map, $x, $y);	2580	$self->leave_link ($map, $x, $y);
		2581	}
		2582
		2583	$done->() if $done;
1587	})->prio (1);	2584	})->prio (1);
1588	}	2585	}
1589		2586
1590	=item $player_object->enter_exit ($exit_object)	2587	=item $player_object->enter_exit ($exit_object)
1591		2588
…		…
1593		2590
1594	sub parse_random_map_params {	2591	sub parse_random_map_params {
1595	my ($spec) = @_;	2592	my ($spec) = @_;
1596		2593
1597	my $rmp = { # defaults	2594	my $rmp = { # defaults
1598	xsize => 10,	2595	xsize => (cf::rndm 15, 40),
1599	ysize => 10,	2596	ysize => (cf::rndm 15, 40),
		2597	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2598	#layout => string,
1600	};	2599	};
1601		2600
1602	for (split /\n/, $spec) {	2601	for (split /\n/, $spec) {
1603	my ($k, $v) = split /\s+/, $_, 2;	2602	my ($k, $v) = split /\s+/, $_, 2;
1604		2603
…		…
1608	$rmp	2607	$rmp
1609	}	2608	}
1610		2609
1611	sub prepare_random_map {	2610	sub prepare_random_map {
1612	my ($exit) = @_;	2611	my ($exit) = @_;
		2612
		2613	my $guard = cf::lock_acquire "exit_prepare:$exit";
1613		2614
1614	# all this does is basically replace the /! path by	2615	# all this does is basically replace the /! path by
1615	# a new random map path (?random/...) with a seed	2616	# a new random map path (?random/...) with a seed
1616	# that depends on the exit object	2617	# that depends on the exit object
1617		2618
1618	my $rmp = parse_random_map_params $exit->msg;	2619	my $rmp = parse_random_map_params $exit->msg;
1619		2620
1620	if ($exit->map) {	2621	if ($exit->map) {
1621	$rmp->{region} = $exit->map->region_name;	2622	$rmp->{region} = $exit->region->name;
1622	$rmp->{origin_map} = $exit->map->path;	2623	$rmp->{origin_map} = $exit->map->path;
1623	$rmp->{origin_x} = $exit->x;	2624	$rmp->{origin_x} = $exit->x;
1624	$rmp->{origin_y} = $exit->y;	2625	$rmp->{origin_y} = $exit->y;
1625	}	2626	}
1626		2627
1627	$rmp->{random_seed} ||= $exit->random_seed;	2628	$rmp->{random_seed} ||= $exit->random_seed;
1628		2629
1629	my $data = cf::to_json $rmp;	2630	my $data = cf::to_json $rmp;
1630	my $md5 = Digest::MD5::md5_hex $data;	2631	my $md5 = Digest::MD5::md5_hex $data;
		2632	my $meta = "$RANDOMDIR/$md5.meta";
1631		2633
1632	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2634	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1633	aio_write $fh, 0, (length $data), $data, 0;	2635	aio_write $fh, 0, (length $data), $data, 0;
		2636	undef $fh;
		2637	aio_rename "$meta~", $meta;
1634		2638
1635	$exit->slaying ("?random/$md5");	2639	$exit->slaying ("?random/$md5");
1636	$exit->msg (undef);	2640	$exit->msg (undef);
1637	}	2641	}
1638	}	2642	}
…		…
1640	sub cf::object::player::enter_exit {	2644	sub cf::object::player::enter_exit {
1641	my ($self, $exit) = @_;	2645	my ($self, $exit) = @_;
1642		2646
1643	return unless $self->type == cf::PLAYER;	2647	return unless $self->type == cf::PLAYER;
1644		2648
		2649	if ($exit->slaying eq "/!") {
		2650	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2651	# the problem is that $exit might not survive long enough
		2652	# so it needs to be done right now, right here
		2653	cf::sync_job { prepare_random_map $exit };
		2654	}
		2655
		2656	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2657	my $hp = $exit->stats->hp;
		2658	my $sp = $exit->stats->sp;
		2659
1645	$self->enter_link;	2660	$self->enter_link;
1646		2661
		2662	# if exit is damned, update players death & WoR home-position
		2663	$self->contr->savebed ($slaying, $hp, $sp)
		2664	if $exit->flag (FLAG_DAMNED);
		2665
1647	(cf::async {	2666	(async {
		2667	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2668
		2669	$self->deactivate_recursive; # just to be sure
1648	unless (eval {	2670	unless (eval {
1649	prepare_random_map $exit	2671	$self->goto ($slaying, $hp, $sp);
1650	if $exit->slaying eq "/!";
1651
1652	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1653	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1654		2672
1655	1;	2673	1;
1656	}) {	2674	}) {
1657	$self->message ("Something went wrong deep within the crossfire server. "	2675	$self->message ("Something went wrong deep within the crossfire server. "
1658	. "I'll try to bring you back to the map you were before. "	2676	. "I'll try to bring you back to the map you were before. "
1659	. "Please report this to the dungeon master",	2677	. "Please report this to the dungeon master!",
1660	cf::NDI_UNIQUE | cf::NDI_RED);	2678	cf::NDI_UNIQUE | cf::NDI_RED);
1661		2679
1662	warn "ERROR in enter_exit: $@";	2680	warn "ERROR in enter_exit: $@";
1663	$self->leave_link;	2681	$self->leave_link;
1664	}	2682	}
1665	})->prio (1);	2683	})->prio (1);
…		…
1678		2696
1679	sub cf::client::send_drawinfo {	2697	sub cf::client::send_drawinfo {
1680	my ($self, $text, $flags) = @_;	2698	my ($self, $text, $flags) = @_;
1681		2699
1682	utf8::encode $text;	2700	utf8::encode $text;
1683	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2701	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1684	}	2702	}
1685		2703
		2704	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2705
		2706	Send a drawinfo or msg packet to the client, formatting the msg for the
		2707	client if neccessary. C<$type> should be a string identifying the type of
		2708	the message, with C<log> being the default. If C<$color> is negative, suppress
		2709	the message unless the client supports the msg packet.
		2710
		2711	=cut
		2712
		2713	# non-persistent channels (usually the info channel)
		2714	our %CHANNEL = (
		2715	"c/identify" => {
		2716	id => "infobox",
		2717	title => "Identify",
		2718	reply => undef,
		2719	tooltip => "Items recently identified",
		2720	},
		2721	"c/examine" => {
		2722	id => "infobox",
		2723	title => "Examine",
		2724	reply => undef,
		2725	tooltip => "Signs and other items you examined",
		2726	},
		2727	"c/book" => {
		2728	id => "infobox",
		2729	title => "Book",
		2730	reply => undef,
		2731	tooltip => "The contents of a note or book",
		2732	},
		2733	"c/lookat" => {
		2734	id => "infobox",
		2735	title => "Look",
		2736	reply => undef,
		2737	tooltip => "What you saw there",
		2738	},
		2739	"c/who" => {
		2740	id => "infobox",
		2741	title => "Players",
		2742	reply => undef,
		2743	tooltip => "Shows players who are currently online",
		2744	},
		2745	"c/body" => {
		2746	id => "infobox",
		2747	title => "Body Parts",
		2748	reply => undef,
		2749	tooltip => "Shows which body parts you posess and are available",
		2750	},
		2751	"c/uptime" => {
		2752	id => "infobox",
		2753	title => "Uptime",
		2754	reply => undef,
		2755	tooltip => "How long the server has been running since last restart",
		2756	},
		2757	"c/mapinfo" => {
		2758	id => "infobox",
		2759	title => "Map Info",
		2760	reply => undef,
		2761	tooltip => "Information related to the maps",
		2762	},
		2763	);
		2764
		2765	sub cf::client::send_msg {
		2766	my ($self, $channel, $msg, $color, @extra) = @_;
		2767
		2768	$msg = $self->pl->expand_cfpod ($msg);
		2769
		2770	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2771
		2772	# check predefined channels, for the benefit of C
		2773	if ($CHANNEL{$channel}) {
		2774	$channel = $CHANNEL{$channel};
		2775
		2776	$self->ext_msg (channel_info => $channel)
		2777	if $self->can_msg;
		2778
		2779	$channel = $channel->{id};
		2780
		2781	} elsif (ref $channel) {
		2782	# send meta info to client, if not yet sent
		2783	unless (exists $self->{channel}{$channel->{id}}) {
		2784	$self->{channel}{$channel->{id}} = $channel;
		2785	$self->ext_msg (channel_info => $channel)
		2786	if $self->can_msg;
		2787	}
		2788
		2789	$channel = $channel->{id};
		2790	}
		2791
		2792	return unless @extra || length $msg;
		2793
		2794	if ($self->can_msg) {
		2795	# default colour, mask it out
		2796	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2797	if $color & cf::NDI_DEF;
		2798
		2799	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2800	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2801	} else {
		2802	if ($color >= 0) {
		2803	# replace some tags by gcfclient-compatible ones
		2804	for ($msg) {
		2805	1 while
		2806	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2807	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2808	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2809	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2810	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2811	}
		2812
		2813	$color &= cf::NDI_COLOR_MASK;
		2814
		2815	utf8::encode $msg;
		2816
		2817	if (0 && $msg =~ /\[/) {
		2818	# COMMAND/INFO
		2819	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2820	} else {
		2821	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2822	$self->send_packet ("drawinfo $color $msg")
		2823	}
		2824	}
		2825	}
		2826	}
		2827
		2828	=item $client->ext_msg ($type, @msg)
		2829
		2830	Sends an ext event to the client.
		2831
		2832	=cut
		2833
		2834	sub cf::client::ext_msg($$@) {
		2835	my ($self, $type, @msg) = @_;
		2836
		2837	if ($self->extcmd == 2) {
		2838	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2839	} elsif ($self->extcmd == 1) { # TODO: remove
		2840	push @msg, msgtype => "event_$type";
		2841	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2842	}
		2843	}
		2844
		2845	=item $client->ext_reply ($msgid, @msg)
		2846
		2847	Sends an ext reply to the client.
		2848
		2849	=cut
		2850
		2851	sub cf::client::ext_reply($$@) {
		2852	my ($self, $id, @msg) = @_;
		2853
		2854	if ($self->extcmd == 2) {
		2855	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2856	} elsif ($self->extcmd == 1) {
		2857	#TODO: version 1, remove
		2858	unshift @msg, msgtype => "reply", msgid => $id;
		2859	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2860	}
		2861	}
1686		2862
1687	=item $success = $client->query ($flags, "text", \&cb)	2863	=item $success = $client->query ($flags, "text", \&cb)
1688		2864
1689	Queues a query to the client, calling the given callback with	2865	Queues a query to the client, calling the given callback with
1690	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2866	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1691	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2867	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1692		2868
1693	Queries can fail, so check the return code. Or don't, as queries will become	2869	Queries can fail, so check the return code. Or don't, as queries will
1694	reliable at some point in the future.	2870	become reliable at some point in the future.
1695		2871
1696	=cut	2872	=cut
1697		2873
1698	sub cf::client::query {	2874	sub cf::client::query {
1699	my ($self, $flags, $text, $cb) = @_;	2875	my ($self, $flags, $text, $cb) = @_;
…		…
1707	utf8::encode $text;	2883	utf8::encode $text;
1708	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2884	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1709		2885
1710	$self->send_packet ($self->{query_queue}[0][0])	2886	$self->send_packet ($self->{query_queue}[0][0])
1711	if @{ $self->{query_queue} } == 1;	2887	if @{ $self->{query_queue} } == 1;
		2888
		2889	1
1712	}	2890	}
1713		2891
1714	cf::client->attach (	2892	cf::client->attach (
		2893	on_connect => sub {
		2894	my ($ns) = @_;
		2895
		2896	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2897	},
1715	on_reply => sub {	2898	on_reply => sub {
1716	my ($ns, $msg) = @_;	2899	my ($ns, $msg) = @_;
1717		2900
1718	# this weird shuffling is so that direct followup queries	2901	# this weird shuffling is so that direct followup queries
1719	# get handled first	2902	# get handled first
1720	my $queue = delete $ns->{query_queue}	2903	my $queue = delete $ns->{query_queue}
1721	or return; # be conservative, not sure how that can happen, but we saw a crash here	2904	or return; # be conservative, not sure how that can happen, but we saw a crash here
1722		2905
1723	(shift @$queue)->[1]->($msg);	2906	(shift @$queue)->[1]->($msg);
		2907	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1724		2908
1725	push @{ $ns->{query_queue} }, @$queue;	2909	push @{ $ns->{query_queue} }, @$queue;
1726		2910
1727	if (@{ $ns->{query_queue} } == @$queue) {	2911	if (@{ $ns->{query_queue} } == @$queue) {
1728	if (@$queue) {	2912	if (@$queue) {
…		…
1730	} else {	2914	} else {
1731	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2915	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1732	}	2916	}
1733	}	2917	}
1734	},	2918	},
		2919	on_exticmd => sub {
		2920	my ($ns, $buf) = @_;
		2921
		2922	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2923
		2924	if (ref $msg) {
		2925	my ($type, $reply, @payload) =
		2926	"ARRAY" eq ref $msg
		2927	? @$msg
		2928	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2929
		2930	my @reply;
		2931
		2932	if (my $cb = $EXTICMD{$type}) {
		2933	@reply = $cb->($ns, @payload);
		2934	}
		2935
		2936	$ns->ext_reply ($reply, @reply)
		2937	if $reply;
		2938
		2939	} else {
		2940	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2941	}
		2942
		2943	cf::override;
		2944	},
1735	);	2945	);
1736		2946
1737	=item $client->coro (\&cb)	2947	=item $client->async (\&cb)
1738		2948
1739	Create a new coroutine, running the specified callback. The coroutine will	2949	Create a new coroutine, running the specified callback. The coroutine will
1740	be automatically cancelled when the client gets destroyed (e.g. on logout,	2950	be automatically cancelled when the client gets destroyed (e.g. on logout,
1741	or loss of connection).	2951	or loss of connection).
1742		2952
1743	=cut	2953	=cut
1744		2954
1745	sub cf::client::coro {	2955	sub cf::client::async {
1746	my ($self, $cb) = @_;	2956	my ($self, $cb) = @_;
1747		2957
1748	my $coro = &cf::async ($cb);	2958	my $coro = &Coro::async ($cb);
1749		2959
1750	$coro->on_destroy (sub {	2960	$coro->on_destroy (sub {
1751	delete $self->{_coro}{$coro+0};	2961	delete $self->{_coro}{$coro+0};
1752	});	2962	});
1753		2963
…		…
1780	our $safe = new Safe "safe";	2990	our $safe = new Safe "safe";
1781	our $safe_hole = new Safe::Hole;	2991	our $safe_hole = new Safe::Hole;
1782		2992
1783	$SIG{FPE} = 'IGNORE';	2993	$SIG{FPE} = 'IGNORE';
1784		2994
1785	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2995	$safe->permit_only (Opcode::opset qw(
		2996	:base_core :base_mem :base_orig :base_math
		2997	grepstart grepwhile mapstart mapwhile
		2998	sort time
		2999	));
1786		3000
1787	# here we export the classes and methods available to script code	3001	# here we export the classes and methods available to script code
1788		3002
1789	=pod	3003	=pod
1790		3004
1791	The following fucntions and emthods are available within a safe environment:	3005	The following functions and methods are available within a safe environment:
1792		3006
1793	cf::object contr pay_amount pay_player map	3007	cf::object
		3008	contr pay_amount pay_player map x y force_find force_add destroy
		3009	insert remove name archname title slaying race decrease_ob_nr
		3010
1794	cf::object::player player	3011	cf::object::player
1795	cf::player peaceful	3012	player
1796	cf::map trigger	3013
		3014	cf::player
		3015	peaceful
		3016
		3017	cf::map
		3018	trigger
1797		3019
1798	=cut	3020	=cut
1799		3021
1800	for (	3022	for (
1801	["cf::object" => qw(contr pay_amount pay_player map)],	3023	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3024	insert remove inv name archname title slaying race
		3025	decrease_ob_nr destroy)],
1802	["cf::object::player" => qw(player)],	3026	["cf::object::player" => qw(player)],
1803	["cf::player" => qw(peaceful)],	3027	["cf::player" => qw(peaceful)],
1804	["cf::map" => qw(trigger)],	3028	["cf::map" => qw(trigger)],
1805	) {	3029	) {
1806	no strict 'refs';	3030	no strict 'refs';
…		…
1877	=back	3101	=back
1878		3102
1879	=cut	3103	=cut
1880		3104
1881	#############################################################################	3105	#############################################################################
		3106	# the server's init and main functions
1882		3107
1883	=head2 EXTENSION DATABASE SUPPORT	3108	sub load_facedata($) {
		3109	my ($path) = @_;
1884		3110
1885	Crossfire maintains a very simple database for extension use. It can	3111	# HACK to clear player env face cache, we need some signal framework
1886	currently store anything that can be serialised using Storable, which	3112	# for this (global event?)
1887	excludes objects.	3113	%ext::player_env::MUSIC_FACE_CACHE = ();
1888		3114
1889	The parameter C<$family> should best start with the name of the extension	3115	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1890	using it, it should be unique.
1891		3116
1892	=over 4	3117	warn "loading facedata from $path\n";
1893		3118
1894	=item $hashref = cf::db_get $family	3119	my $facedata;
		3120	0 < aio_load $path, $facedata
		3121	or die "$path: $!";
1895		3122
1896	Return a hashref for use by the extension C<$family>, which can be	3123	$facedata = Coro::Storable::thaw $facedata;
1897	modified. After modifications, you have to call C<cf::db_dirty> or
1898	C<cf::db_sync>.
1899		3124
1900	=item $value = cf::db_get $family => $key	3125	$facedata->{version} == 2
		3126	or cf::cleanup "$path: version mismatch, cannot proceed.";
1901		3127
1902	Returns a single value from the database	3128	# patch in the exptable
1903		3129	$facedata->{resource}{"res/exp_table"} = {
1904	=item cf::db_put $family => $hashref	3130	type => FT_RSRC,
1905		3131	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1906	Stores the given family hashref into the database. Updates are delayed, if
1907	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1908
1909	=item cf::db_put $family => $key => $value
1910
1911	Stores the given C<$value> in the family hash. Updates are delayed, if you
1912	want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_dirty
1915
1916	Marks the database as dirty, to be updated at a later time.
1917
1918	=item cf::db_sync
1919
1920	Immediately write the database to disk I<if it is dirty>.
1921
1922	=cut
1923
1924	our $DB;
1925
1926	{
1927	my $path = cf::localdir . "/database.pst";
1928
1929	sub db_load() {
1930	$DB = stat $path ? Storable::retrieve $path : { };
1931	}
1932
1933	my $pid;
1934
1935	sub db_save() {
1936	waitpid $pid, 0 if $pid;
1937	if (0 == ($pid = fork)) {
1938	$DB->{_meta}{version} = 1;
1939	Storable::nstore $DB, "$path~";
1940	rename "$path~", $path;
1941	cf::_exit 0 if defined $pid;
1942	}
1943	}
1944
1945	my $dirty;
1946
1947	sub db_sync() {
1948	db_save if $dirty;
1949	undef $dirty;
1950	}
1951
1952	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1953	db_sync;
1954	});	3132	};
		3133	cf::cede_to_tick;
1955		3134
1956	sub db_dirty() {
1957	$dirty = 1;
1958	$idle->start;
1959	}	3135	{
		3136	my $faces = $facedata->{faceinfo};
1960		3137
1961	sub db_get($;$) {	3138	while (my ($face, $info) = each %$faces) {
1962	@_ >= 2	3139	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1963	? $DB->{$_[0]}{$_[1]}	3140	cf::face::set_visibility $idx, $info->{visibility};
1964	: ($DB->{$_[0]} ||= { })	3141	cf::face::set_magicmap $idx, $info->{magicmap};
1965	}	3142	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3143	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1966		3144
1967	sub db_put($$;$) {	3145	cf::cede_to_tick;
1968	if (@_ >= 3) {
1969	$DB->{$_[0]}{$_[1]} = $_[2];
1970	} else {
1971	$DB->{$_[0]} = $_[1];
1972	}
1973	db_dirty;
1974	}
1975
1976	cf::global->attach (
1977	prio => 10000,
1978	on_cleanup => sub {
1979	db_sync;
1980	},	3146	}
1981	);
1982	}
1983		3147
1984	#############################################################################	3148	while (my ($face, $info) = each %$faces) {
1985	# the server's main()	3149	next unless $info->{smooth};
		3150	my $idx = cf::face::find $face
		3151	or next;
		3152	if (my $smooth = cf::face::find $info->{smooth}) {
		3153	cf::face::set_smooth $idx, $smooth;
		3154	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3155	} else {
		3156	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3157	}
1986		3158
1987	sub cfg_load {	3159	cf::cede_to_tick;
		3160	}
		3161	}
		3162
		3163	{
		3164	my $anims = $facedata->{animinfo};
		3165
		3166	while (my ($anim, $info) = each %$anims) {
		3167	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3168	cf::cede_to_tick;
		3169	}
		3170
		3171	cf::anim::invalidate_all; # d'oh
		3172	}
		3173
		3174	{
		3175	# TODO: for gcfclient pleasure, we should give resources
		3176	# that gcfclient doesn't grok a >10000 face index.
		3177	my $res = $facedata->{resource};
		3178
		3179	my $soundconf = delete $res->{"res/sound.conf"};
		3180
		3181	while (my ($name, $info) = each %$res) {
		3182	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3183	my $data;
		3184
		3185	if ($info->{type} & 1) {
		3186	# prepend meta info
		3187
		3188	my $meta = $enc->encode ({
		3189	name => $name,
		3190	%{ $info->{meta} || {} },
		3191	});
		3192
		3193	$data = pack "(w/a*)*", $meta, $info->{data};
		3194	} else {
		3195	$data = $info->{data};
		3196	}
		3197
		3198	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3199	cf::face::set_type $idx, $info->{type};
		3200
		3201	cf::cede_to_tick;
		3202	}
		3203
		3204	if ($soundconf) {
		3205	$soundconf = $enc->decode (delete $soundconf->{data});
		3206
		3207	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3208	my $sound = $soundconf->{compat}[$_]
		3209	or next;
		3210
		3211	my $face = cf::face::find "sound/$sound->[1]";
		3212	cf::sound::set $sound->[0] => $face;
		3213	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3214	}
		3215
		3216	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3217	my $face = cf::face::find "sound/$v";
		3218	cf::sound::set $k => $face;
		3219	}
		3220	}
		3221	}
		3222
		3223	1
		3224	}
		3225
		3226	register_exticmd fx_want => sub {
		3227	my ($ns, $want) = @_;
		3228
		3229	while (my ($k, $v) = each %$want) {
		3230	$ns->fx_want ($k, $v);
		3231	}
		3232	};
		3233
		3234	sub reload_regions {
		3235	# HACK to clear player env face cache, we need some signal framework
		3236	# for this (global event?)
		3237	%ext::player_env::MUSIC_FACE_CACHE = ();
		3238
		3239	load_resource_file "$MAPDIR/regions"
		3240	or die "unable to load regions file\n";
		3241
		3242	for (cf::region::list) {
		3243	$_->{match} = qr/$_->{match}/
		3244	if exists $_->{match};
		3245	}
		3246	}
		3247
		3248	sub reload_facedata {
		3249	load_facedata "$DATADIR/facedata"
		3250	or die "unable to load facedata\n";
		3251	}
		3252
		3253	sub reload_archetypes {
		3254	load_resource_file "$DATADIR/archetypes"
		3255	or die "unable to load archetypes\n";
		3256	#d# NEED to laod twice to resolve forward references
		3257	# this really needs to be done in an extra post-pass
		3258	# (which needs to be synchronous, so solve it differently)
		3259	load_resource_file "$DATADIR/archetypes"
		3260	or die "unable to load archetypes\n";
		3261	}
		3262
		3263	sub reload_treasures {
		3264	load_resource_file "$DATADIR/treasures"
		3265	or die "unable to load treasurelists\n";
		3266	}
		3267
		3268	sub reload_resources {
		3269	warn "reloading resource files...\n";
		3270
		3271	reload_regions;
		3272	reload_facedata;
		3273	#reload_archetypes;#d#
		3274	reload_archetypes;
		3275	reload_treasures;
		3276
		3277	warn "finished reloading resource files\n";
		3278	}
		3279
		3280	sub init {
		3281	reload_resources;
		3282	}
		3283
		3284	sub reload_config {
1988	open my $fh, "<:utf8", cf::confdir . "/config"	3285	open my $fh, "<:utf8", "$CONFDIR/config"
1989	or return;	3286	or return;
1990		3287
1991	local $/;	3288	local $/;
1992	*CFG = YAML::Syck::Load <$fh>;	3289	*CFG = YAML::Syck::Load <$fh>;
		3290
		3291	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3292
		3293	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3294	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3295
		3296	if (exists $CFG{mlockall}) {
		3297	eval {
		3298	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3299	and die "WARNING: m(un)lockall failed: $!\n";
		3300	};
		3301	warn $@ if $@;
		3302	}
1993	}	3303	}
1994		3304
1995	sub main {	3305	sub main {
1996	# we must not ever block the main coroutine	3306	# we must not ever block the main coroutine
1997	local $Coro::idle = sub {	3307	local $Coro::idle = sub {
1998	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3308	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1999	(Coro::unblock_sub {	3309	(async {
		3310	$Coro::current->{desc} = "IDLE BUG HANDLER";
2000	Event::one_event;	3311	Event::one_event;
2001	})->();	3312	})->prio (Coro::PRIO_MAX);
2002	};	3313	};
2003		3314
2004	cfg_load;	3315	reload_config;
2005	db_load;	3316	db_init;
2006	load_extensions;	3317	load_extensions;
		3318
		3319	$TICK_WATCHER->start;
2007	Event::loop;	3320	Event::loop;
2008	}	3321	}
2009		3322
2010	#############################################################################	3323	#############################################################################
2011	# initialisation	3324	# initialisation and cleanup
2012		3325
		3326	# install some emergency cleanup handlers
		3327	BEGIN {
		3328	for my $signal (qw(INT HUP TERM)) {
		3329	Event->signal (
		3330	reentrant => 0,
		3331	data => WF_AUTOCANCEL,
		3332	signal => $signal,
		3333	prio => 0,
		3334	cb => sub {
		3335	cf::cleanup "SIG$signal";
		3336	},
		3337	);
		3338	}
		3339	}
		3340
		3341	sub write_runtime {
		3342	my $runtime = "$LOCALDIR/runtime";
		3343
		3344	# first touch the runtime file to show we are still running:
		3345	# the fsync below can take a very very long time.
		3346
		3347	IO::AIO::aio_utime $runtime, undef, undef;
		3348
		3349	my $guard = cf::lock_acquire "write_runtime";
		3350
		3351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3352	or return;
		3353
		3354	my $value = $cf::RUNTIME + 90 + 10;
		3355	# 10 is the runtime save interval, for a monotonic clock
		3356	# 60 allows for the watchdog to kill the server.
		3357
		3358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3359	and return;
		3360
		3361	# always fsync - this file is important
		3362	aio_fsync $fh
		3363	and return;
		3364
		3365	# touch it again to show we are up-to-date
		3366	aio_utime $fh, undef, undef;
		3367
		3368	close $fh
		3369	or return;
		3370
		3371	aio_rename "$runtime~", $runtime
		3372	and return;
		3373
		3374	warn "runtime file written.\n";
		3375
		3376	1
		3377	}
		3378
		3379	sub emergency_save() {
		3380	my $freeze_guard = cf::freeze_mainloop;
		3381
		3382	warn "enter emergency perl save\n";
		3383
		3384	cf::sync_job {
		3385	# use a peculiar iteration method to avoid tripping on perl
		3386	# refcount bugs in for. also avoids problems with players
		3387	# and maps saved/destroyed asynchronously.
		3388	warn "begin emergency player save\n";
		3389	for my $login (keys %cf::PLAYER) {
		3390	my $pl = $cf::PLAYER{$login} or next;
		3391	$pl->valid or next;
		3392	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3393	$pl->save;
		3394	}
		3395	warn "end emergency player save\n";
		3396
		3397	warn "begin emergency map save\n";
		3398	for my $path (keys %cf::MAP) {
		3399	my $map = $cf::MAP{$path} or next;
		3400	$map->valid or next;
		3401	$map->save;
		3402	}
		3403	warn "end emergency map save\n";
		3404
		3405	warn "begin emergency database checkpoint\n";
		3406	BDB::db_env_txn_checkpoint $DB_ENV;
		3407	warn "end emergency database checkpoint\n";
		3408	};
		3409
		3410	warn "leave emergency perl save\n";
		3411	}
		3412
		3413	sub post_cleanup {
		3414	my ($make_core) = @_;
		3415
		3416	warn Carp::longmess "post_cleanup backtrace"
		3417	if $make_core;
		3418	}
		3419
2013	sub reload() {	3420	sub do_reload_perl() {
2014	# can/must only be called in main	3421	# can/must only be called in main
2015	if ($Coro::current != $Coro::main) {	3422	if ($Coro::current != $Coro::main) {
2016	warn "can only reload from main coroutine\n";	3423	warn "can only reload from main coroutine";
2017	return;	3424	return;
2018	}	3425	}
2019		3426
2020	warn "reloading...";	3427	warn "reloading...";
2021		3428
2022	local $FREEZE = 1;	3429	warn "entering sync_job";
		3430
		3431	cf::sync_job {
		3432	cf::write_runtime; # external watchdog should not bark
2023	cf::emergency_save;	3433	cf::emergency_save;
		3434	cf::write_runtime; # external watchdog should not bark
2024		3435
2025	eval {	3436	warn "syncing database to disk";
		3437	BDB::db_env_txn_checkpoint $DB_ENV;
		3438
2026	# if anything goes wrong in here, we should simply crash as we already saved	3439	# if anything goes wrong in here, we should simply crash as we already saved
2027		3440
2028	# cancel all watchers	3441	warn "cancelling all WF_AUTOCANCEL watchers";
2029	for (Event::all_watchers) {	3442	for (Event::all_watchers) {
2030	$_->cancel if $_->data & WF_AUTOCANCEL;	3443	$_->cancel if $_->data & WF_AUTOCANCEL;
2031	}	3444	}
2032		3445
		3446	warn "flushing outstanding aio requests";
		3447	for (;;) {
		3448	BDB::flush;
		3449	IO::AIO::flush;
		3450	Coro::cede_notself;
		3451	last unless IO::AIO::nreqs || BDB::nreqs;
		3452	warn "iterate...";
		3453	}
		3454
		3455	++$RELOAD;
		3456
2033	# cancel all extension coros	3457	warn "cancelling all extension coros";
2034	$_->cancel for values %EXT_CORO;	3458	$_->cancel for values %EXT_CORO;
2035	%EXT_CORO = ();	3459	%EXT_CORO = ();
2036		3460
2037	# unload all extensions	3461	warn "removing commands";
2038	for (@exts) {	3462	%COMMAND = ();
		3463
		3464	warn "removing ext/exti commands";
		3465	%EXTCMD = ();
		3466	%EXTICMD = ();
		3467
		3468	warn "unloading/nuking all extensions";
		3469	for my $pkg (@EXTS) {
2039	warn "unloading <$_>";	3470	warn "... unloading $pkg";
2040	unload_extension $_;	3471
		3472	if (my $cb = $pkg->can ("unload")) {
		3473	eval {
		3474	$cb->($pkg);
		3475	1
		3476	} or warn "$pkg unloaded, but with errors: $@";
2041	}	3477	}
2042		3478
		3479	warn "... nuking $pkg";
		3480	Symbol::delete_package $pkg;
		3481	}
		3482
2043	# unload all modules loaded from $LIBDIR	3483	warn "unloading all perl modules loaded from $LIBDIR";
2044	while (my ($k, $v) = each %INC) {	3484	while (my ($k, $v) = each %INC) {
2045	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3485	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2046		3486
2047	warn "removing <$k>";	3487	warn "... unloading $k";
2048	delete $INC{$k};	3488	delete $INC{$k};
2049		3489
2050	$k =~ s/\.pm$//;	3490	$k =~ s/\.pm$//;
2051	$k =~ s/\//::/g;	3491	$k =~ s/\//::/g;
2052		3492
…		…
2055	}	3495	}
2056		3496
2057	Symbol::delete_package $k;	3497	Symbol::delete_package $k;
2058	}	3498	}
2059		3499
2060	# sync database to disk
2061	cf::db_sync;
2062	IO::AIO::flush;
2063
2064	# get rid of safe::, as good as possible	3500	warn "getting rid of safe::, as good as possible";
2065	Symbol::delete_package "safe::$_"	3501	Symbol::delete_package "safe::$_"
2066	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3502	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2067		3503
2068	# remove register_script_function callbacks
2069	# TODO
2070
2071	# unload cf.pm "a bit"	3504	warn "unloading cf.pm \"a bit\"";
2072	delete $INC{"cf.pm"};	3505	delete $INC{"cf.pm"};
		3506	delete $INC{"cf/pod.pm"};
2073		3507
2074	# don't, removes xs symbols, too,	3508	# don't, removes xs symbols, too,
2075	# and global variables created in xs	3509	# and global variables created in xs
2076	#Symbol::delete_package __PACKAGE__;	3510	#Symbol::delete_package __PACKAGE__;
2077		3511
2078	# reload cf.pm	3512	warn "unload completed, starting to reload now";
		3513
2079	warn "reloading cf.pm";	3514	warn "reloading cf.pm";
2080	require cf;	3515	require cf;
2081	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3516	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2082		3517
2083	# load config and database again	3518	warn "loading config and database again";
2084	cf::cfg_load;	3519	cf::reload_config;
2085	cf::db_load;
2086		3520
2087	# load extensions
2088	warn "load extensions";	3521	warn "loading extensions";
2089	cf::load_extensions;	3522	cf::load_extensions;
2090		3523
2091	# reattach attachments to objects	3524	warn "reattaching attachments to objects/players";
2092	warn "reattach";	3525	_global_reattach; # objects, sockets
2093	_global_reattach;	3526	warn "reattaching attachments to maps";
2094	};	3527	reattach $_ for values %MAP;
		3528	warn "reattaching attachments to players";
		3529	reattach $_ for values %PLAYER;
2095		3530
2096	if ($@) {	3531	warn "leaving sync_job";
		3532
		3533	1
		3534	} or do {
2097	warn $@;	3535	warn $@;
2098	warn "error while reloading, exiting.";	3536	warn "error while reloading, exiting.";
2099	exit 1;	3537	exit 1;
2100	}	3538	};
2101		3539
2102	warn "reloaded successfully";	3540	warn "reloaded";
2103	};	3541	};
2104		3542
2105	#############################################################################	3543	our $RELOAD_WATCHER; # used only during reload
2106		3544
2107	unless ($LINK_MAP) {	3545	sub reload_perl() {
2108	$LINK_MAP = cf::map::new;	3546	# doing reload synchronously and two reloads happen back-to-back,
		3547	# coro crashes during coro_state_free->destroy here.
2109		3548
2110	$LINK_MAP->width (41);	3549	$RELOAD_WATCHER ||= Event->timer (
2111	$LINK_MAP->height (41);	3550	reentrant => 0,
2112	$LINK_MAP->alloc;
2113	$LINK_MAP->path ("{link}");
2114	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2115	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2116
2117	# dirty hack because... archetypes are not yet loaded
2118	Event->timer (
2119	after => 2,	3551	after => 0,
		3552	data => WF_AUTOCANCEL,
2120	cb => sub {	3553	cb => sub {
2121	$_[0]->w->cancel;	3554	do_reload_perl;
2122		3555	undef $RELOAD_WATCHER;
2123	# provide some exits "home"
2124	my $exit = cf::object::new "exit";
2125
2126	$exit->slaying ($EMERGENCY_POSITION->[0]);
2127	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2128	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2129
2130	$LINK_MAP->insert ($exit->clone, 19, 19);
2131	$LINK_MAP->insert ($exit->clone, 19, 20);
2132	$LINK_MAP->insert ($exit->clone, 19, 21);
2133	$LINK_MAP->insert ($exit->clone, 20, 19);
2134	$LINK_MAP->insert ($exit->clone, 20, 21);
2135	$LINK_MAP->insert ($exit->clone, 21, 19);
2136	$LINK_MAP->insert ($exit->clone, 21, 20);
2137	$LINK_MAP->insert ($exit->clone, 21, 21);
2138
2139	$exit->destroy;
2140	});	3556	},
2141		3557	);
2142	$LINK_MAP->{deny_save} = 1;
2143	$LINK_MAP->{deny_reset} = 1;
2144
2145	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2146	}	3558	}
2147
2148	register "<global>", __PACKAGE__;
2149		3559
2150	register_command "reload" => sub {	3560	register_command "reload" => sub {
2151	my ($who, $arg) = @_;	3561	my ($who, $arg) = @_;
2152		3562
2153	if ($who->flag (FLAG_WIZ)) {	3563	if ($who->flag (FLAG_WIZ)) {
2154	$who->message ("start of reload.");
2155	reload;
2156	$who->message ("end of reload.");	3564	$who->message ("reloading server.");
		3565	async {
		3566	$Coro::current->{desc} = "perl_reload";
		3567	reload_perl;
		3568	};
2157	}	3569	}
2158	};	3570	};
2159		3571
2160	unshift @INC, $LIBDIR;	3572	unshift @INC, $LIBDIR;
		3573
		3574	my $bug_warning = 0;
		3575
		3576	our @WAIT_FOR_TICK;
		3577	our @WAIT_FOR_TICK_BEGIN;
		3578
		3579	sub wait_for_tick {
		3580	return unless $TICK_WATCHER->is_active;
		3581	return if $Coro::current == $Coro::main;
		3582
		3583	my $signal = new Coro::Signal;
		3584	push @WAIT_FOR_TICK, $signal;
		3585	$signal->wait;
		3586	}
		3587
		3588	sub wait_for_tick_begin {
		3589	return unless $TICK_WATCHER->is_active;
		3590	return if $Coro::current == $Coro::main;
		3591
		3592	my $signal = new Coro::Signal;
		3593	push @WAIT_FOR_TICK_BEGIN, $signal;
		3594	$signal->wait;
		3595	}
2161		3596
2162	$TICK_WATCHER = Event->timer (	3597	$TICK_WATCHER = Event->timer (
2163	reentrant => 0,	3598	reentrant => 0,
		3599	parked => 1,
2164	prio => 0,	3600	prio => 0,
2165	at => $NEXT_TICK || $TICK,	3601	at => $NEXT_TICK || $TICK,
2166	data => WF_AUTOCANCEL,	3602	data => WF_AUTOCANCEL,
2167	cb => sub {	3603	cb => sub {
2168	unless ($FREEZE) {	3604	if ($Coro::current != $Coro::main) {
		3605	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3606	unless ++$bug_warning > 10;
		3607	return;
		3608	}
		3609
		3610	$NOW = $tick_start = Event::time;
		3611
2169	cf::server_tick; # one server iteration	3612	cf::server_tick; # one server iteration
		3613
2170	$RUNTIME += $TICK;	3614	$RUNTIME += $TICK;
2171	}
2172
2173	$NEXT_TICK += $TICK;	3615	$NEXT_TICK += $TICK;
2174		3616
		3617	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3618	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3619	Coro::async_pool {
		3620	$Coro::current->{desc} = "runtime saver";
		3621	write_runtime
		3622	or warn "ERROR: unable to write runtime file: $!";
		3623	};
		3624	}
		3625
		3626	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3627	$sig->send;
		3628	}
		3629	while (my $sig = shift @WAIT_FOR_TICK) {
		3630	$sig->send;
		3631	}
		3632
		3633	$NOW = Event::time;
		3634
2175	# if we are delayed by four ticks or more, skip them all	3635	# if we are delayed by four ticks or more, skip them all
2176	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3636	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2177		3637
2178	$TICK_WATCHER->at ($NEXT_TICK);	3638	$TICK_WATCHER->at ($NEXT_TICK);
2179	$TICK_WATCHER->start;	3639	$TICK_WATCHER->start;
		3640
		3641	$LOAD = ($NOW - $tick_start) / $TICK;
		3642	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3643
		3644	_post_tick;
2180	},	3645	},
2181	);	3646	);
2182		3647
		3648	{
		3649	BDB::min_parallel 8;
2183	IO::AIO::max_poll_time $TICK * 0.2;	3650	BDB::max_poll_time $TICK * 0.1;
2184		3651	$BDB_POLL_WATCHER = Event->io (
2185	Event->io (	3652	reentrant => 0,
2186	fd => IO::AIO::poll_fileno,	3653	fd => BDB::poll_fileno,
2187	poll => 'r',	3654	poll => 'r',
2188	prio => 5,	3655	prio => 0,
2189	data => WF_AUTOCANCEL,
2190	cb => \&IO::AIO::poll_cb,
2191	);
2192
2193	Event->timer (
2194	data => WF_AUTOCANCEL,	3656	data => WF_AUTOCANCEL,
		3657	cb => \&BDB::poll_cb,
		3658	);
		3659
		3660	BDB::set_sync_prepare {
		3661	my $status;
		3662	my $current = $Coro::current;
		3663	(
		3664	sub {
		3665	$status = $!;
		3666	$current->ready; undef $current;
		3667	},
		3668	sub {
		3669	Coro::schedule while defined $current;
		3670	$! = $status;
		3671	},
		3672	)
		3673	};
		3674
		3675	unless ($DB_ENV) {
		3676	$DB_ENV = BDB::db_env_create;
		3677	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3678	| BDB::LOG_AUTOREMOVE, 1);
		3679	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3680	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3681
		3682	cf::sync_job {
		3683	eval {
		3684	BDB::db_env_open
		3685	$DB_ENV,
		3686	$BDBDIR,
		3687	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3688	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3689	0666;
		3690
		3691	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3692	};
		3693
		3694	cf::cleanup "db_env_open(db): $@" if $@;
		3695	};
		3696	}
		3697
		3698	$BDB_DEADLOCK_WATCHER = Event->timer (
2195	after => 0,	3699	after => 3,
2196	interval => 10,	3700	interval => 1,
		3701	hard => 1,
		3702	prio => 0,
		3703	data => WF_AUTOCANCEL,
2197	cb => sub {	3704	cb => sub {
2198	(Coro::unblock_sub {	3705	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2199	write_runtime	3706	},
2200	or warn "ERROR: unable to write runtime file: $!";	3707	);
		3708	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3709	after => 11,
		3710	interval => 60,
		3711	hard => 1,
		3712	prio => 0,
		3713	data => WF_AUTOCANCEL,
		3714	cb => sub {
		3715	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3716	},
		3717	);
		3718	$BDB_TRICKLE_WATCHER = Event->timer (
		3719	after => 5,
		3720	interval => 10,
		3721	hard => 1,
		3722	prio => 0,
		3723	data => WF_AUTOCANCEL,
		3724	cb => sub {
		3725	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3726	},
		3727	);
		3728	}
		3729
		3730	{
		3731	IO::AIO::min_parallel 8;
		3732
		3733	undef $Coro::AIO::WATCHER;
		3734	IO::AIO::max_poll_time $TICK * 0.1;
		3735	$AIO_POLL_WATCHER = Event->io (
		3736	reentrant => 0,
		3737	data => WF_AUTOCANCEL,
		3738	fd => IO::AIO::poll_fileno,
		3739	poll => 'r',
		3740	prio => 0,
		3741	cb => \&IO::AIO::poll_cb,
		3742	);
		3743	}
		3744
		3745	my $_log_backtrace;
		3746
		3747	sub _log_backtrace {
		3748	my ($msg, @addr) = @_;
		3749
		3750	$msg =~ s/\n//;
		3751
		3752	# limit the # of concurrent backtraces
		3753	if ($_log_backtrace < 2) {
		3754	++$_log_backtrace;
		3755	async {
		3756	$Coro::current->{desc} = "abt $msg";
		3757
		3758	my @bt = fork_call {
		3759	@addr = map { sprintf "%x", $_ } @addr;
		3760	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3761	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3762	or die "addr2line: $!";
		3763
		3764	my @funcs;
		3765	my @res = <$fh>;
		3766	chomp for @res;
		3767	while (@res) {
		3768	my ($func, $line) = splice @res, 0, 2, ();
		3769	push @funcs, "[$func] $line";
		3770	}
		3771
		3772	@funcs
		3773	};
		3774
		3775	LOG llevInfo, "[ABT] $msg\n";
		3776	LOG llevInfo, "[ABT] $_\n" for @bt;
		3777	--$_log_backtrace;
2201	})->();	3778	};
		3779	} else {
		3780	LOG llevInfo, "[ABT] $msg\n";
		3781	LOG llevInfo, "[ABT] [suppressed]\n";
2202	},	3782	}
2203	);	3783	}
		3784
		3785	# load additional modules
		3786	use cf::pod;
2204		3787
2205	END { cf::emergency_save }	3788	END { cf::emergency_save }
2206		3789
2207	1	3790	1
2208		3791

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