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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.124 by root, Tue Jan 2 22:55:05 2007 UTC vs.
Revision 1.386 by root, Mon Oct 15 17:50:27 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.
		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.
106		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/crossfire/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
		399	=item cf::async { BLOCK }
		400
		401	Currently the same as Coro::async_pool, meaning you cannot use
		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.
		404
		405	=cut
		406
		407	BEGIN { *async = \&Coro::async_pool }
		408
250	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
251		410
252	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Crossfire TRT is only
254	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.
255		415
256	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
257	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
258	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
259	fast or be very important.	419	fast or be very important.
…		…
262		422
263	sub sync_job(&) {	423	sub sync_job(&) {
264	my ($job) = @_;	424	my ($job) = @_;
265		425
266	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
267	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
269		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
270	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	435	# (but this is cancel-safe)
272	local $FREEZE = 1;	436	my $freeze_guard = freeze_mainloop;
273		437
274	my $busy = 1;	438	my $busy = 1;
275	my @res;	439	my @res;
276		440
277	(Coro::async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	443	@res = eval { $job->() };
279	warn $@ if $@;	444	warn $@ if $@;
280	undef $busy;	445	undef $busy;
281	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
282		447
283	while ($busy) {	448	while ($busy) {
284	Coro::cede_notself;	449	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	450	}
		451
		452	$time = Event::time - $time;
		453
		454	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		455	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		456
		457	$tick_start += $time; # do not account sync jobs to server load
287		458
288	wantarray ? @res : $res[0]	459	wantarray ? @res : $res[0]
289	} else {	460	} else {
290	# we are in another coroutine, how wonderful, everything just works	461	# we are in another coroutine, how wonderful, everything just works
291		462
292	$job->()	463	$job->()
293	}	464	}
294	}	465	}
295		466
296	=item $coro = cf::coro { BLOCK }	467	=item $coro = cf::async_ext { BLOCK }
297		468
298	Creates and returns a new coro. This coro is automcatially being canceled	469	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	470	extension calling this is being unloaded.
300		471
301	=cut	472	=cut
302		473
303	sub coro(&) {	474	sub async_ext(&) {
304	my $cb = shift;	475	my $cb = shift;
305		476
306	my $coro; $coro = async {	477	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		478
313	$coro->on_destroy (sub {	479	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	480	delete $EXT_CORO{$coro+0};
315	});	481	});
316	$EXT_CORO{$coro+0} = $coro;	482	$EXT_CORO{$coro+0} = $coro;
317		483
318	$coro	484	$coro
319	}	485	}
320		486
321	sub write_runtime {	487	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		488
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	489	Executes the given code block with the given arguments in a seperate
325	or return;	490	process, returning the results. Everything must be serialisable with
		491	Coro::Storable. May, of course, block. Note that the executed sub may
		492	never block itself or use any form of Event handling.
326		493
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	494	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		495
331	aio_fsync $fh	496	sub fork_call(&@) {
332	and return;	497	my ($cb, @args) = @_;
333		498
334	close $fh	499	# we seemingly have to make a local copy of the whole thing,
335	or return;	500	# otherwise perl prematurely frees the stuff :/
		501	# TODO: investigate and fix (likely this will be rather laborious)
336		502
337	aio_rename "$runtime~", $runtime	503	my @res = Coro::Util::fork_eval {
338	and return;	504	reset_signals;
		505	&$cb
		506	}, @args;
339		507
		508	wantarray ? @res : $res[-1]
		509	}
		510
		511	=item $value = cf::db_get $family => $key
		512
		513	Returns a single value from the environment database.
		514
		515	=item cf::db_put $family => $key => $value
		516
		517	Stores the given C<$value> in the family. It can currently store binary
		518	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		519
		520	=item $db = cf::db_table "name"
		521
		522	Create and/or open a new database table. The string must not be "db" and must be unique
		523	within each server.
		524
		525	=cut
		526
		527	sub db_table($) {
		528	my ($name) = @_;
		529	my $db = BDB::db_create $DB_ENV;
		530
		531	eval {
		532	$db->set_flags (BDB::CHKSUM);
		533
		534	utf8::encode $name;
		535	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		536	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		537	cf::cleanup "db_open(db): $!" if $!;
		538	};
		539	cf::cleanup "db_open(db): $@" if $@;
		540
		541	$db
		542	}
		543
		544	our $DB;
		545
		546	sub db_init {
		547	cf::sync_job {
		548	$DB ||= db_table "db";
		549	};
		550	}
		551
		552	sub db_get($$) {
		553	my $key = "$_[0]/$_[1]";
		554
		555	cf::sync_job {
		556	BDB::db_get $DB, undef, $key, my $data;
		557
		558	$! ? ()
		559	: $data
340	1	560	}
		561	}
		562
		563	sub db_put($$$) {
		564	BDB::dbreq_pri 4;
		565	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		566	}
		567
		568	=item cf::cache $id => [$paths...], $processversion => $process
		569
		570	Generic caching function that returns the value of the resource $id,
		571	caching and regenerating as required.
		572
		573	This function can block.
		574
		575	=cut
		576
		577	sub cache {
		578	my ($id, $src, $processversion, $process) = @_;
		579
		580	my $meta =
		581	join "\x00",
		582	$processversion,
		583	map {
		584	aio_stat $_
		585	and Carp::croak "$_: $!";
		586
		587	($_, (stat _)[7,9])
		588	} @$src;
		589
		590	my $dbmeta = db_get cache => "$id/meta";
		591	if ($dbmeta ne $meta) {
		592	# changed, we may need to process
		593
		594	my @data;
		595	my $md5;
		596
		597	for (0 .. $#$src) {
		598	0 <= aio_load $src->[$_], $data[$_]
		599	or Carp::croak "$src->[$_]: $!";
		600	}
		601
		602	# if processing is expensive, check
		603	# checksum first
		604	if (1) {
		605	$md5 =
		606	join "\x00",
		607	$processversion,
		608	map {
		609	cf::cede_to_tick;
		610	($src->[$_], Digest::MD5::md5_hex $data[$_])
		611	} 0.. $#$src;
		612
		613
		614	my $dbmd5 = db_get cache => "$id/md5";
		615	if ($dbmd5 eq $md5) {
		616	db_put cache => "$id/meta", $meta;
		617
		618	return db_get cache => "$id/data";
		619	}
		620	}
		621
		622	my $t1 = Time::HiRes::time;
		623	my $data = $process->(\@data);
		624	my $t2 = Time::HiRes::time;
		625
		626	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		627
		628	db_put cache => "$id/data", $data;
		629	db_put cache => "$id/md5" , $md5;
		630	db_put cache => "$id/meta", $meta;
		631
		632	return $data;
		633	}
		634
		635	db_get cache => "$id/data"
		636	}
		637
		638	=item cf::datalog type => key => value, ...
		639
		640	Log a datalog packet of the given type with the given key-value pairs.
		641
		642	=cut
		643
		644	sub datalog($@) {
		645	my ($type, %kv) = @_;
		646	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	647	}
342		648
343	=back	649	=back
344		650
345	=cut	651	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		652
467	#############################################################################	653	#############################################################################
468		654
469	=head2 ATTACHABLE OBJECTS	655	=head2 ATTACHABLE OBJECTS
470		656
…		…
472	attach callbacks/event handlers (a collection of which is called an "attachment")	658	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	659	to it. All such attachable objects support the following methods.
474		660
475	In the following description, CLASS can be any of C<global>, C<object>	661	In the following description, CLASS can be any of C<global>, C<object>
476	C<player>, C<client> or C<map> (i.e. the attachable objects in	662	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	663	Crossfire TRT).
478		664
479	=over 4	665	=over 4
480		666
481	=item $attachable->attach ($attachment, key => $value...)	667	=item $attachable->attach ($attachment, key => $value...)
482		668
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	782	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	783	our @CB_MAP = ();
598		784
599	my %attachment;	785	my %attachment;
600		786
		787	sub cf::attachable::thawer_merge {
		788	# simply override everything except _meta
		789	local $_[0]{_meta};
		790	%{$_[0]} = %{$_[1]};
		791	}
		792
601	sub _attach_cb($$$$) {	793	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	794	my ($registry, $event, $prio, $cb) = @_;
603		795
604	use sort 'stable';	796	use sort 'stable';
605		797
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	831	$registry = $CB_TYPE[$object_type] ||= [];
640		832
641	} elsif ($type eq "subtype") {	833	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	834	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	835	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	836	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		837
646	} elsif ($type eq "package") {	838	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	839	my $pkg = shift @arg;
648		840
649	while (my ($name, $id) = each %cb_id) {	841	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	870	_attach $registry, $klass, @attach;
679	}	871	}
680		872
681	$obj->{$name} = \%arg;	873	$obj->{$name} = \%arg;
682	} else {	874	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	875	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	876	}
685		877
686	$obj->{_attachment}{$name} = undef;	878	$obj->{_attachment}{$name} = undef;
687	}	879	}
688		880
…		…
690	if (ref $_[0]) {	882	if (ref $_[0]) {
691	_object_attach @_;	883	_object_attach @_;
692	} else {	884	} else {
693	_attach shift->_attach_registry, @_;	885	_attach shift->_attach_registry, @_;
694	}	886	}
		887	_recalc_want;
695	};	888	};
696		889
697	# all those should be optimised	890	# all those should be optimised
698	sub cf::attachable::detach {	891	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	892	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	895	delete $obj->{_attachment}{$name};
703	reattach ($obj);	896	reattach ($obj);
704	} else {	897	} else {
705	Carp::croak "cannot, currently, detach class attachments";	898	Carp::croak "cannot, currently, detach class attachments";
706	}	899	}
		900	_recalc_want;
707	};	901	};
708		902
709	sub cf::attachable::attached {	903	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	904	my ($obj, $name) = @_;
711		905
…		…
726	";	920	";
727	die if $@;	921	die if $@;
728	}	922	}
729		923
730	our $override;	924	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	925	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		926
733	sub override {	927	sub override {
734	$override = 1;	928	$override = 1;
735	@invoke_results = ();	929	@INVOKE_RESULTS = (@_);
736	}	930	}
737		931
738	sub do_invoke {	932	sub do_invoke {
739	my $event = shift;	933	my $event = shift;
740	my $callbacks = shift;	934	my $callbacks = shift;
741		935
742	@invoke_results = ();	936	@INVOKE_RESULTS = ();
743		937
744	local $override;	938	local $override;
745		939
746	for (@$callbacks) {	940	for (@$callbacks) {
747	eval { &{$_->[1]} };	941	eval { &{$_->[1]} };
…		…
764		958
765	Generate an object-specific event with the given arguments.	959	Generate an object-specific event with the given arguments.
766		960
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	961	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
768	removed in future versions), and there is no public API to access override	962	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	963	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		964
771	=back	965	=back
772		966
773	=cut	967	=cut
774		968
775	#############################################################################	969	#############################################################################
776	# object support	970	# object support
		971
		972	sub _object_equal($$);
		973	sub _object_equal($$) {
		974	my ($a, $b) = @_;
		975
		976	return 0 unless (ref $a) eq (ref $b);
		977
		978	if ("HASH" eq ref $a) {
		979	my @ka = keys %$a;
		980	my @kb = keys %$b;
		981
		982	return 0 if @ka != @kb;
		983
		984	for (0 .. $#ka) {
		985	return 0 unless $ka[$_] eq $kb[$_];
		986	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		987	}
		988
		989	} elsif ("ARRAY" eq ref $a) {
		990
		991	return 0 if @$a != @$b;
		992
		993	for (0 .. $#$a) {
		994	return 0 unless _object_equal $a->[$_], $b->[$_];
		995	}
		996
		997	} elsif ($a ne $b) {
		998	return 0;
		999	}
		1000
		1001	1
		1002	}
		1003
		1004	our $SLOW_MERGES;#d#
		1005	sub _can_merge {
		1006	my ($ob1, $ob2) = @_;
		1007
		1008	++$SLOW_MERGES;#d#
		1009
		1010	# we do the slow way here
		1011	return _object_equal $ob1, $ob2
		1012	}
777		1013
778	sub reattach {	1014	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1015	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	1016	my ($obj) = @_;
		1017
		1018	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		1019
782	my $registry = $obj->registry;	1020	my $registry = $obj->registry;
783		1021
784	@$registry = ();	1022	@$registry = ();
785		1023
…		…
826	sub object_freezer_save {	1064	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1065	my ($filename, $rdata, $objs) = @_;
828		1066
829	sync_job {	1067	sync_job {
830	if (length $$rdata) {	1068	if (length $$rdata) {
		1069	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1070	warn sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1071	$decname, length $$rdata, scalar @$objs;
833		1072
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1073	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1074	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1075	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	1076	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	1077	close $fh;
839		1078
840	if (@$objs) {	1079	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1080	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1081	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1082	my $data = Coro::Storable::blocking_nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1083	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	1084	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	1085	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1086	aio_rename "$filename.pst~", "$filename.pst";
848	}	1087	}
849	} else {	1088	} else {
850	aio_unlink "$filename.pst";	1089	aio_unlink "$filename.pst";
…		…
856	}	1095	}
857	} else {	1096	} else {
858	aio_unlink $filename;	1097	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1098	aio_unlink "$filename.pst";
860	}	1099	}
861	}	1100	};
862	}	1101	}
863		1102
864	sub object_freezer_as_string {	1103	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1104	my ($rdata, $objs) = @_;
866		1105
…		…
878	or return;	1117	or return;
879		1118
880	unless (aio_stat "$filename.pst") {	1119	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1120	(aio_load "$filename.pst", $av) >= 0
882	or return;	1121	or return;
883	$av = eval { (Storable::thaw $av)->{objs} };
884	}
885		1122
		1123	my $st = eval { Coro::Storable::thaw $av }
		1124	|| eval { my $guard = Coro::Storable::guard; Storable::thaw $av }; #d# compatibility, remove
		1125	$av = $st->{objs};
		1126	}
		1127
		1128	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1129	warn sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1130	$decname, length $data, scalar @{$av || []};
		1131
888	return ($data, $av);	1132	($data, $av)
889	}	1133	}
		1134
		1135	=head2 COMMAND CALLBACKS
		1136
		1137	=over 4
		1138
		1139	=cut
890		1140
891	#############################################################################	1141	#############################################################################
892	# command handling &c	1142	# command handling &c
893		1143
894	=item cf::register_command $name => \&callback($ob,$args);	1144	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1157	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1158	}
909		1159
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1160	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1161
912	Register a callbackf ro execution when the client sends an extcmd packet.	1162	Register a callback for execution when the client sends an (synchronous)
		1163	extcmd packet. Ext commands will be processed in the order they are
		1164	received by the server, like other user commands. The first argument is
		1165	the logged-in player. Ext commands can only be processed after a player
		1166	has logged in successfully.
913		1167
914	If the callback returns something, it is sent back as if reply was being	1168	If the callback returns something, it is sent back as if reply was being
915	called.	1169	called.
916		1170
		1171	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1172
		1173	Register a callback for execution when the client sends an (asynchronous)
		1174	exticmd packet. Exti commands are processed by the server as soon as they
		1175	are received, i.e. out of order w.r.t. other commands. The first argument
		1176	is a client socket. Exti commands can be received anytime, even before
		1177	log-in.
		1178
		1179	If the callback returns something, it is sent back as if reply was being
		1180	called.
		1181
917	=cut	1182	=cut
918		1183
919	sub register_extcmd {	1184	sub register_extcmd {
920	my ($name, $cb) = @_;	1185	my ($name, $cb) = @_;
921		1186
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1187	$EXTCMD{$name} = $cb;
		1188	}
		1189
		1190	sub register_exticmd {
		1191	my ($name, $cb) = @_;
		1192
		1193	$EXTICMD{$name} = $cb;
926	}	1194	}
927		1195
928	cf::player->attach (	1196	cf::player->attach (
929	on_command => sub {	1197	on_command => sub {
930	my ($pl, $name, $params) = @_;	1198	my ($pl, $name, $params) = @_;
…		…
939	cf::override;	1207	cf::override;
940	},	1208	},
941	on_extcmd => sub {	1209	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1210	my ($pl, $buf) = @_;
943		1211
944	my $msg = eval { from_json $buf };	1212	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1213
946	if (ref $msg) {	1214	if (ref $msg) {
		1215	my ($type, $reply, @payload) =
		1216	"ARRAY" eq ref $msg
		1217	? @$msg
		1218	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1219
		1220	my @reply;
		1221
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1222	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1223	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1224	}
		1225
		1226	$pl->ext_reply ($reply, @reply)
		1227	if $reply;
		1228
952	} else {	1229	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1230	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1231	}
955		1232
956	cf::override;	1233	cf::override;
957	},	1234	},
958	);	1235	);
959		1236
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1237	sub load_extensions {
		1238	cf::sync_job {
		1239	my %todo;
		1240
		1241	for my $path (<$LIBDIR/*.ext>) {
		1242	next unless -r $path;
		1243
		1244	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1245	my $base = $1;
		1246	my $pkg = $1;
		1247	$pkg =~ s/[^[:word:]]/_/g;
		1248	$pkg = "ext::$pkg";
		1249
		1250	open my $fh, "<:utf8", $path
		1251	or die "$path: $!";
		1252
		1253	my $source = do { local $/; <$fh> };
		1254
		1255	my %ext = (
		1256	path => $path,
		1257	base => $base,
		1258	pkg => $pkg,
		1259	);
		1260
		1261	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1262	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1263
		1264	$ext{source} =
		1265	"package $pkg; use strict; use utf8;\n"
		1266	. "#line 1 \"$path\"\n{\n"
		1267	. $source
		1268	. "\n};\n1";
		1269
		1270	$todo{$base} = \%ext;
		1271	}
		1272
		1273	my %done;
		1274	while (%todo) {
		1275	my $progress;
		1276
		1277	while (my ($k, $v) = each %todo) {
		1278	for (split /,\s*/, $v->{meta}{depends}) {
		1279	goto skip
		1280	unless exists $done{$_};
		1281	}
		1282
		1283	warn "... loading '$k' into '$v->{pkg}'\n";
		1284
		1285	unless (eval $v->{source}) {
		1286	my $msg = $@ ? "$v->{path}: $@\n"
		1287	: "$v->{base}: extension inactive.\n";
		1288
		1289	if (exists $v->{meta}{mandatory}) {
		1290	warn $msg;
		1291	warn "mandatory extension failed to load, exiting.\n";
		1292	exit 1;
		1293	}
		1294
		1295	warn $msg;
		1296	}
		1297
		1298	$done{$k} = delete $todo{$k};
		1299	push @EXTS, $v->{pkg};
		1300	$progress = 1;
		1301	}
		1302
		1303	skip:
		1304	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1305	unless $progress;
		1306	}
		1307	};
		1308	}
		1309
		1310	#############################################################################
		1311
		1312	=back
		1313
		1314	=head2 CORE EXTENSIONS
		1315
		1316	Functions and methods that extend core crossfire objects.
		1317
		1318	=cut
		1319
		1320	package cf::player;
		1321
		1322	use Coro::AIO;
		1323
		1324	=head3 cf::player
		1325
		1326	=over 4
		1327
		1328	=item cf::player::num_playing
		1329
		1330	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1331
		1332	=cut
		1333
		1334	sub num_playing {
		1335	scalar grep
		1336	$_->ob->map
		1337	&& !$_->hidden
		1338	&& !$_->ob->flag (cf::FLAG_WIZ),
		1339	cf::player::list
		1340	}
		1341
		1342	=item cf::player::find $login
		1343
		1344	Returns the given player object, loading it if necessary (might block).
		1345
		1346	=cut
		1347
		1348	sub playerdir($) {
		1349	"$PLAYERDIR/"
		1350	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1351	}
		1352
		1353	sub path($) {
		1354	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1355
		1356	(playerdir $login) . "/playerdata"
		1357	}
		1358
		1359	sub find_active($) {
		1360	$cf::PLAYER{$_[0]}
		1361	and $cf::PLAYER{$_[0]}->active
		1362	and $cf::PLAYER{$_[0]}
		1363	}
		1364
		1365	sub exists($) {
		1366	my ($login) = @_;
		1367
		1368	$cf::PLAYER{$login}
		1369	or cf::sync_job { !aio_stat path $login }
		1370	}
		1371
		1372	sub find($) {
		1373	return $cf::PLAYER{$_[0]} || do {
		1374	my $login = $_[0];
		1375
		1376	my $guard = cf::lock_acquire "user_find:$login";
		1377
		1378	$cf::PLAYER{$_[0]} || do {
		1379	# rename old playerfiles to new ones
		1380	#TODO: remove when no longer required
		1381	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1382	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1383	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1384	aio_unlink +(playerdir $login) . "/$login.pl";
		1385
		1386	my $f = new_from_file cf::object::thawer path $login
		1387	or return;
		1388
		1389	my $pl = cf::player::load_pl $f
		1390	or return;
		1391	local $cf::PLAYER_LOADING{$login} = $pl;
		1392	$f->resolve_delayed_derefs;
		1393	$cf::PLAYER{$login} = $pl
		1394	}
		1395	}
		1396	}
		1397
		1398	sub save($) {
		1399	my ($pl) = @_;
		1400
		1401	return if $pl->{deny_save};
		1402
		1403	my $path = path $pl;
		1404	my $guard = cf::lock_acquire "user_save:$path";
		1405
		1406	return if $pl->{deny_save};
		1407
		1408	aio_mkdir playerdir $pl, 0770;
		1409	$pl->{last_save} = $cf::RUNTIME;
		1410
		1411	$pl->save_pl ($path);
		1412	cf::cede_to_tick;
		1413	}
		1414
		1415	sub new($) {
		1416	my ($login) = @_;
		1417
		1418	my $self = create;
		1419
		1420	$self->ob->name ($login);
		1421	$self->{deny_save} = 1;
		1422
		1423	$cf::PLAYER{$login} = $self;
		1424
		1425	$self
		1426	}
		1427
		1428	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1429
		1430	=cut
		1431
		1432	sub send_msg {
		1433	my $ns = shift->ns
		1434	or return;
		1435	$ns->send_msg (@_);
		1436	}
		1437
		1438	=item $pl->quit_character
		1439
		1440	Nukes the player without looking back. If logged in, the connection will
		1441	be destroyed. May block for a long time.
		1442
		1443	=cut
		1444
		1445	sub quit_character {
		1446	my ($pl) = @_;
		1447
		1448	my $name = $pl->ob->name;
		1449
		1450	$pl->{deny_save} = 1;
		1451	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1452
		1453	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1454	$pl->deactivate;
		1455	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1456	$pl->ns->destroy if $pl->ns;
		1457
		1458	my $path = playerdir $pl;
		1459	my $temp = "$path~$cf::RUNTIME~deleting~";
		1460	aio_rename $path, $temp;
		1461	delete $cf::PLAYER{$pl->ob->name};
		1462	$pl->destroy;
		1463
		1464	my $prefix = qr<^~\Q$name\E/>;
		1465
		1466	# nuke player maps
		1467	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1468
		1469	IO::AIO::aio_rmtree $temp;
		1470	}
		1471
		1472	=item $pl->kick
		1473
		1474	Kicks a player out of the game. This destroys the connection.
		1475
		1476	=cut
		1477
		1478	sub kick {
		1479	my ($pl, $kicker) = @_;
		1480
		1481	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1482	$pl->killer ("kicked");
		1483	$pl->ns->destroy;
		1484	}
		1485
		1486	=item cf::player::list_logins
		1487
		1488	Returns am arrayref of all valid playernames in the system, can take a
		1489	while and may block, so not sync_job-capable, ever.
		1490
		1491	=cut
		1492
		1493	sub list_logins {
		1494	my $dirs = aio_readdir $PLAYERDIR
		1495	or return [];
		1496
		1497	my @logins;
		1498
		1499	for my $login (@$dirs) {
		1500	my $path = path $login;
		1501
		1502	# a .pst is a dead give-away for a valid player
		1503	unless (-e "$path.pst") {
		1504	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1505	aio_read $fh, 0, 512, my $buf, 0 or next;
		1506	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1507	}
		1508
		1509	utf8::decode $login;
		1510	push @logins, $login;
		1511	}
		1512
		1513	\@logins
		1514	}
		1515
		1516	=item $player->maps
		1517
		1518	Returns an arrayref of map paths that are private for this
		1519	player. May block.
		1520
		1521	=cut
		1522
		1523	sub maps($) {
		1524	my ($pl) = @_;
		1525
		1526	$pl = ref $pl ? $pl->ob->name : $pl;
		1527
		1528	my $files = aio_readdir playerdir $pl
		1529	or return;
		1530
		1531	my @paths;
		1532
		1533	for (@$files) {
		1534	utf8::decode $_;
		1535	next if /\.(?:pl|pst)$/;
		1536	next unless /^$PATH_SEP/o;
		1537
		1538	push @paths, cf::map::normalise "~$pl/$_";
		1539	}
		1540
		1541	\@paths
		1542	}
		1543
		1544	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1545
		1546	Expand crossfire pod fragments into protocol xml.
		1547
		1548	=cut
		1549
		1550	sub expand_cfpod {
		1551	((my $self), (local $_)) = @_;
		1552
		1553	# escape & and <
		1554	s/&/&amp;/g;
		1555	s/(?<![BIUGHT])</&lt;/g;
		1556
		1557	# this is buggy, it needs to properly take care of nested <'s
		1558
		1559	1 while
		1560	# replace B<>, I<>, U<> etc.
		1561	s/B<([^\>]*)>/<b>$1<\/b>/
		1562	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1563	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1564	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1565	# replace G<male|female> tags
		1566	|| s{G<([^>|]*)\|([^>]*)>}{
		1567	$self->gender ? $2 : $1
		1568	}ge
		1569	# replace H<hint text>
		1570	|| s{H<([^\>]*)>}
		1571	{
		1572	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1573	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1574	"")
		1575	[$self->{hintmode}]
		1576	}ge;
		1577
		1578	# create single paragraphs (very hackish)
		1579	s/(?<=\S)\n(?=\w)/ /g;
		1580
		1581	# compress some whitespace
		1582	s/\s+\n/\n/g; # ws line-ends
		1583	s/\n\n+/\n/g; # double lines
		1584	s/^\n+//; # beginning lines
		1585	s/\n+$//; # ending lines
		1586
		1587	$_
		1588	}
		1589
		1590	sub hintmode {
		1591	$_[0]{hintmode} = $_[1] if @_ > 1;
		1592	$_[0]{hintmode}
		1593	}
		1594
		1595	=item $player->ext_reply ($msgid, @msg)
		1596
		1597	Sends an ext reply to the player.
		1598
		1599	=cut
		1600
		1601	sub ext_reply($$@) {
		1602	my ($self, $id, @msg) = @_;
		1603
		1604	$self->ns->ext_reply ($id, @msg)
		1605	}
		1606
		1607	=item $player->ext_msg ($type, @msg)
		1608
		1609	Sends an ext event to the client.
		1610
		1611	=cut
		1612
		1613	sub ext_msg($$@) {
		1614	my ($self, $type, @msg) = @_;
		1615
		1616	$self->ns->ext_msg ($type, @msg);
		1617	}
		1618
		1619	=head3 cf::region
		1620
		1621	=over 4
		1622
		1623	=cut
		1624
		1625	package cf::region;
		1626
		1627	=item cf::region::find_by_path $path
		1628
		1629	Tries to decuce the likely region for a map knowing only its path.
		1630
		1631	=cut
		1632
		1633	sub find_by_path($) {
967	my ($path) = @_;	1634	my ($path) = @_;
968		1635
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1636	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1637
975	warn "loading '$path' into '$pkg'\n";	1638	for my $region (list) {
976		1639	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1640	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1641	if $region->specificity > $specificity;
979		1642	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1643	}
1009		1644
1010	# remove commands	1645	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1646	}
1116		1647
1117	=back	1648	=back
1118
1119		1649
1120	=head3 cf::map	1650	=head3 cf::map
1121		1651
1122	=over 4	1652	=over 4
1123		1653
…		…
1126	package cf::map;	1656	package cf::map;
1127		1657
1128	use Fcntl;	1658	use Fcntl;
1129	use Coro::AIO;	1659	use Coro::AIO;
1130		1660
		1661	use overload
		1662	'""' => \&as_string,
		1663	fallback => 1;
		1664
1131	our $MAX_RESET = 7200;	1665	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1666	our $DEFAULT_RESET = 3000;
1133		1667
1134	sub generate_random_map {	1668	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1669	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1670	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1671	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1672	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1673	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1674	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1675	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1676	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1677	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1678	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1679	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1680	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1681	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1682	(cf::region::find $rmp->{region}), $rmp->{custom}
		1683	)
		1684	}
		1685
		1686	=item cf::map->register ($regex, $prio)
		1687
		1688	Register a handler for the map path matching the given regex at the
		1689	givne priority (higher is better, built-in handlers have priority 0, the
		1690	default).
		1691
		1692	=cut
		1693
		1694	sub register {
		1695	my (undef, $regex, $prio) = @_;
		1696	my $pkg = caller;
		1697
		1698	no strict;
		1699	push @{"$pkg\::ISA"}, __PACKAGE__;
		1700
		1701	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1702	}
		1703
		1704	# also paths starting with '/'
		1705	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1706
		1707	sub thawer_merge {
		1708	my ($self, $merge) = @_;
		1709
		1710	# we have to keep some variables in memory intact
		1711	local $self->{path};
		1712	local $self->{load_path};
		1713
		1714	$self->SUPER::thawer_merge ($merge);
		1715	}
		1716
		1717	sub normalise {
		1718	my ($path, $base) = @_;
		1719
		1720	$path = "$path"; # make sure its a string
		1721
		1722	$path =~ s/\.map$//;
		1723
		1724	# map plan:
		1725	#
		1726	# /! non-realised random map exit (special hack!)
		1727	# {... are special paths that are not being touched
		1728	# ?xxx/... are special absolute paths
		1729	# ?random/... random maps
		1730	# /... normal maps
		1731	# ~user/... per-player map of a specific user
		1732
		1733	$path =~ s/$PATH_SEP/\//go;
		1734
		1735	# treat it as relative path if it starts with
		1736	# something that looks reasonable
		1737	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1738	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1739
		1740	$base =~ s{[^/]+/?$}{};
		1741	$path = "$base/$path";
		1742	}
		1743
		1744	for ($path) {
		1745	redo if s{//}{/};
		1746	redo if s{/\.?/}{/};
		1747	redo if s{/[^/]+/\.\./}{/};
		1748	}
		1749
		1750	$path
		1751	}
		1752
		1753	sub new_from_path {
		1754	my (undef, $path, $base) = @_;
		1755
		1756	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1757
		1758	$path = normalise $path, $base;
		1759
		1760	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1761	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1762	my $self = bless cf::map::new, $pkg;
		1763	$self->{path} = $path; $self->path ($path);
		1764	$self->init; # pass $1 etc.
		1765	return $self;
		1766	}
		1767	}
		1768
		1769	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1770	()
		1771	}
		1772
		1773	sub init {
		1774	my ($self) = @_;
		1775
		1776	$self
		1777	}
		1778
		1779	sub as_string {
		1780	my ($self) = @_;
		1781
		1782	"$self->{path}"
		1783	}
		1784
		1785	# the displayed name, this is a one way mapping
		1786	sub visible_name {
		1787	&as_string
		1788	}
		1789
		1790	# the original (read-only) location
		1791	sub load_path {
		1792	my ($self) = @_;
		1793
		1794	"$MAPDIR/$self->{path}.map"
		1795	}
		1796
		1797	# the temporary/swap location
		1798	sub save_path {
		1799	my ($self) = @_;
		1800
		1801	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1802	"$TMPDIR/$path.map"
		1803	}
		1804
		1805	# the unique path, undef == no special unique path
		1806	sub uniq_path {
		1807	my ($self) = @_;
		1808
		1809	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1810	"$UNIQUEDIR/$path"
1151	}	1811	}
1152		1812
1153	# and all this just because we cannot iterate over	1813	# and all this just because we cannot iterate over
1154	# all maps in C++...	1814	# all maps in C++...
1155	sub change_all_map_light {	1815	sub change_all_map_light {
…		…
1157		1817
1158	$_->change_map_light ($change)	1818	$_->change_map_light ($change)
1159	for grep $_->outdoor, values %cf::MAP;	1819	for grep $_->outdoor, values %cf::MAP;
1160	}	1820	}
1161		1821
		1822	sub decay_objects {
		1823	my ($self) = @_;
		1824
		1825	return if $self->{deny_reset};
		1826
		1827	$self->do_decay_objects;
		1828	}
		1829
		1830	sub unlink_save {
		1831	my ($self) = @_;
		1832
		1833	utf8::encode (my $save = $self->save_path);
		1834	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1835	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1836	}
		1837
1162	sub try_load_header($) {	1838	sub load_header_from($) {
1163	my ($path) = @_;	1839	my ($self, $path) = @_;
1164		1840
1165	utf8::encode $path;	1841	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1842	my $f = new_from_file cf::object::thawer $path
1167	or return;	1843	or return;
1168		1844
1169	my $map = cf::map::new	1845	$self->_load_header ($f)
1170	or return;	1846	or return;
1171		1847
1172	$map->load_header ($path)	1848	local $MAP_LOADING{$self->{path}} = $self;
		1849	$f->resolve_delayed_derefs;
		1850
		1851	$self->{load_path} = $path;
		1852
		1853	1
		1854	}
		1855
		1856	sub load_header_orig {
		1857	my ($self) = @_;
		1858
		1859	$self->load_header_from ($self->load_path)
		1860	}
		1861
		1862	sub load_header_temp {
		1863	my ($self) = @_;
		1864
		1865	$self->load_header_from ($self->save_path)
		1866	}
		1867
		1868	sub prepare_temp {
		1869	my ($self) = @_;
		1870
		1871	$self->last_access ((delete $self->{last_access})
		1872	|| $cf::RUNTIME); #d#
		1873	# safety
		1874	$self->{instantiate_time} = $cf::RUNTIME
		1875	if $self->{instantiate_time} > $cf::RUNTIME;
		1876	}
		1877
		1878	sub prepare_orig {
		1879	my ($self) = @_;
		1880
		1881	$self->{load_original} = 1;
		1882	$self->{instantiate_time} = $cf::RUNTIME;
		1883	$self->last_access ($cf::RUNTIME);
		1884	$self->instantiate;
		1885	}
		1886
		1887	sub load_header {
		1888	my ($self) = @_;
		1889
		1890	if ($self->load_header_temp) {
		1891	$self->prepare_temp;
		1892	} else {
		1893	$self->load_header_orig
1173	or return;	1894	or return;
		1895	$self->prepare_orig;
		1896	}
1174		1897
1175	$map->{load_path} = $path;	1898	$self->{deny_reset} = 1
		1899	if $self->no_reset;
1176		1900
1177	$map	1901	$self->default_region (cf::region::find_by_path $self->{path})
1178	}	1902	unless $self->default_region;
1179		1903
		1904	1
		1905	}
		1906
		1907	sub find;
1180	sub find_map {	1908	sub find {
1181	my ($path, $origin) = @_;	1909	my ($path, $origin) = @_;
1182		1910
1183	#warn "find_map<$path,$origin>\n";#d#
1184
1185	$path = new cf::path $path, $origin && $origin->path;	1911	$path = normalise $path, $origin && $origin->path;
1186	my $key = $path->as_string;
1187		1912
		1913	cf::lock_wait "map_data:$path";#d#remove
1188	cf::lock_wait "map_find:$key";	1914	cf::lock_wait "map_find:$path";
1189		1915
1190	$cf::MAP{$key} || do {	1916	$cf::MAP{$path} || do {
1191	my $guard = cf::lock_acquire "map_find:$key";	1917	my $guard1 = cf::lock_acquire "map_find:$path";
		1918	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1192		1919
1193	# do it the slow way	1920	my $map = new_from_path cf::map $path
1194	my $map = try_load_header $path->save_path;
1195
1196	if ($map) {
1197	# safety
1198	$map->{instantiate_time} = $cf::RUNTIME
1199	if $map->{instantiate_time} > $cf::RUNTIME;
1200	} else {
1201	if (my $rmp = $path->random_map_params) {
1202	$map = generate_random_map $key, $rmp;
1203	} else {
1204	$map = try_load_header $path->load_path;
1205	}
1206
1207	$map or return;	1921	or return;
1208		1922
1209	$map->{load_original} = 1;
1210	$map->{instantiate_time} = $cf::RUNTIME;
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1923	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		1924
1222	if ($map->should_reset) {	1925	$map->load_header
		1926	or return;
		1927
		1928	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1929	# doing this can freeze the server in a sync job, obviously
		1930	#$cf::WAIT_FOR_TICK->wait;
		1931	undef $guard1;
		1932	undef $guard2;
1223	$map->reset;	1933	$map->reset;
1224	undef $guard;	1934	return find $path;
1225	$map = cf::map::find_map ($path)
1226	or return;
1227	}	1935	}
1228		1936
1229	$cf::MAP{$key} = $map	1937	$cf::MAP{$path} = $map
1230	}	1938	}
1231	}	1939	}
		1940
		1941	sub pre_load { }
		1942	sub post_load { }
1232		1943
1233	sub load {	1944	sub load {
1234	my ($self) = @_;	1945	my ($self) = @_;
1235		1946
		1947	local $self->{deny_reset} = 1; # loading can take a long time
		1948
1236	my $path = $self->{path};	1949	my $path = $self->{path};
		1950
		1951	{
1237	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1952	my $guard = cf::lock_acquire "map_data:$path";
1238		1953
		1954	return unless $self->valid;
1239	return if $self->in_memory != cf::MAP_SWAPPED;	1955	return unless $self->in_memory == cf::MAP_SWAPPED;
1240		1956
1241	$self->in_memory (cf::MAP_LOADING);	1957	$self->in_memory (cf::MAP_LOADING);
1242		1958
1243	$self->alloc;	1959	$self->alloc;
1244	$self->load_objects ($self->{load_path}, 1)	1960
		1961	$self->pre_load;
		1962	cf::cede_to_tick;
		1963
		1964	my $f = new_from_file cf::object::thawer $self->{load_path};
		1965	$f->skip_block;
		1966	$self->_load_objects ($f)
1245	or return;	1967	or return;
1246		1968
1247	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1969	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1248	if delete $self->{load_original};	1970	if delete $self->{load_original};
1249		1971
1250	if (my $uniq = $path->uniq_path) {	1972	if (my $uniq = $self->uniq_path) {
1251	utf8::encode $uniq;	1973	utf8::encode $uniq;
1252	if (aio_open $uniq, O_RDONLY, 0) {	1974	unless (aio_stat $uniq) {
		1975	if (my $f = new_from_file cf::object::thawer $uniq) {
1253	$self->clear_unique_items;	1976	$self->clear_unique_items;
1254	$self->load_objects ($uniq, 0);	1977	$self->_load_objects ($f);
		1978	$f->resolve_delayed_derefs;
		1979	}
1255	}	1980	}
1256	}	1981	}
1257		1982
		1983	$f->resolve_delayed_derefs;
		1984
		1985	cf::cede_to_tick;
1258	# now do the right thing for maps	1986	# now do the right thing for maps
1259	$self->link_multipart_objects;	1987	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	1988	$self->difficulty ($self->estimate_difficulty)
1270	unless $self->difficulty;	1989	unless $self->difficulty;
		1990	cf::cede_to_tick;
		1991
		1992	unless ($self->{deny_activate}) {
		1993	$self->decay_objects;
		1994	$self->fix_auto_apply;
		1995	$self->update_buttons;
		1996	cf::cede_to_tick;
		1997	$self->set_darkness_map;
		1998	cf::cede_to_tick;
1271	$self->activate;	1999	$self->activate;
1272	}	2000	}
1273		2001
		2002	$self->{last_save} = $cf::RUNTIME;
		2003	$self->last_access ($cf::RUNTIME);
		2004
1274	$self->in_memory (cf::MAP_IN_MEMORY);	2005	$self->in_memory (cf::MAP_IN_MEMORY);
1275	}	2006	}
1276		2007
1277	sub load_map_sync {	2008	$self->post_load;
		2009	}
		2010
		2011	sub customise_for {
		2012	my ($self, $ob) = @_;
		2013
		2014	return find "~" . $ob->name . "/" . $self->{path}
		2015	if $self->per_player;
		2016
		2017	# return find "?party/" . $ob->name . "/" . $self->{path}
		2018	# if $self->per_party;
		2019
		2020	$self
		2021	}
		2022
		2023	# find and load all maps in the 3x3 area around a map
		2024	sub load_neighbours {
		2025	my ($map) = @_;
		2026
		2027	my @neigh; # diagonal neighbours
		2028
		2029	for (0 .. 3) {
		2030	my $neigh = $map->tile_path ($_)
		2031	or next;
		2032	$neigh = find $neigh, $map
		2033	or next;
		2034	$neigh->load;
		2035
		2036	push @neigh,
		2037	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2038	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2039	}
		2040
		2041	for (grep defined $_->[0], @neigh) {
		2042	my ($path, $origin) = @$_;
		2043	my $neigh = find $path, $origin
		2044	or next;
		2045	$neigh->load;
		2046	}
		2047	}
		2048
		2049	sub find_sync {
1278	my ($path, $origin) = @_;	2050	my ($path, $origin) = @_;
1279		2051
1280	#warn "load_map_sync<$path, $origin>\n";#d#	2052	cf::sync_job { find $path, $origin }
		2053	}
1281		2054
1282	cf::sync_job {	2055	sub do_load_sync {
1283	my $map = cf::map::find_map $path, $origin	2056	my ($map) = @_;
1284	or return;	2057
1285	$map->load;	2058	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1286	$map	2059	if $Coro::current == $Coro::main;
		2060
		2061	cf::sync_job { $map->load };
		2062	}
		2063
		2064	our %MAP_PREFETCH;
		2065	our $MAP_PREFETCHER = undef;
		2066
		2067	sub find_async {
		2068	my ($path, $origin, $load) = @_;
		2069
		2070	$path = normalise $path, $origin && $origin->{path};
		2071
		2072	if (my $map = $cf::MAP{$path}) {
		2073	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2074	}
		2075
		2076	$MAP_PREFETCH{$path} |= $load;
		2077
		2078	$MAP_PREFETCHER ||= cf::async {
		2079	$Coro::current->{desc} = "map prefetcher";
		2080
		2081	while (%MAP_PREFETCH) {
		2082	while (my ($k, $v) = each %MAP_PREFETCH) {
		2083	if (my $map = find $k) {
		2084	$map->load if $v;
		2085	}
		2086
		2087	delete $MAP_PREFETCH{$k};
		2088	}
		2089	}
		2090	undef $MAP_PREFETCHER;
1287	}	2091	};
		2092	$MAP_PREFETCHER->prio (6);
		2093
		2094	()
1288	}	2095	}
1289		2096
1290	sub save {	2097	sub save {
1291	my ($self) = @_;	2098	my ($self) = @_;
1292		2099
		2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2101
1293	$self->{last_save} = $cf::RUNTIME;	2102	$self->{last_save} = $cf::RUNTIME;
1294		2103
1295	return unless $self->dirty;	2104	return unless $self->dirty;
1296		2105
1297	my $save = $self->{path}->save_path; utf8::encode $save;	2106	my $save = $self->save_path; utf8::encode $save;
1298	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2107	my $uniq = $self->uniq_path; utf8::encode $uniq;
1299		2108
1300	$self->{load_path} = $save;	2109	$self->{load_path} = $save;
1301		2110
1302	return if $self->{deny_save};	2111	return if $self->{deny_save};
1303		2112
		2113	local $self->{last_access} = $self->last_access;#d#
		2114
		2115	cf::async {
		2116	$Coro::current->{desc} = "map player save";
		2117	$_->contr->save for $self->players;
		2118	};
		2119
1304	if ($uniq) {	2120	if ($uniq) {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2121	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1306	$self->save_objects ($uniq, cf::IO_UNIQUES);	2122	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1307	} else {	2123	} else {
1308	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2124	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1309	}	2125	}
1310	}	2126	}
1311		2127
1312	sub swap_out {	2128	sub swap_out {
1313	my ($self) = @_;	2129	my ($self) = @_;
		2130
		2131	# save first because save cedes
		2132	$self->save;
		2133
		2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1314		2135
1315	return if $self->players;	2136	return if $self->players;
1316	return if $self->in_memory != cf::MAP_IN_MEMORY;	2137	return if $self->in_memory != cf::MAP_IN_MEMORY;
1317	return if $self->{deny_save};	2138	return if $self->{deny_save};
1318		2139
		2140	$self->in_memory (cf::MAP_SWAPPED);
		2141
1319	$self->save;	2142	$self->deactivate;
		2143	$_->clear_links_to ($self) for values %cf::MAP;
1320	$self->clear;	2144	$self->clear;
1321	$self->in_memory (cf::MAP_SWAPPED);
1322	}	2145	}
1323		2146
1324	sub reset_at {	2147	sub reset_at {
1325	my ($self) = @_;	2148	my ($self) = @_;
1326		2149
1327	# TODO: safety, remove and allow resettable per-player maps	2150	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};
1329	return 1e99 if $self->{deny_reset};	2151	return 1e99 if $self->{deny_reset};
1330		2152
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2153	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2154	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		2155
…		…
1338	my ($self) = @_;	2160	my ($self) = @_;
1339		2161
1340	$self->reset_at <= $cf::RUNTIME	2162	$self->reset_at <= $cf::RUNTIME
1341	}	2163	}
1342		2164
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	2165	sub reset {
1365	my ($self) = @_;	2166	my ($self) = @_;
1366		2167
		2168	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2169
1367	return if $self->players;	2170	return if $self->players;
1368	return if $self->{path}{user_rel};#d#
1369		2171
1370	warn "resetting map ", $self->path;#d#	2172	warn "resetting map ", $self->path;
		2173
		2174	$self->in_memory (cf::MAP_SWAPPED);
		2175
		2176	# need to save uniques path
		2177	unless ($self->{deny_save}) {
		2178	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2179
		2180	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2181	if $uniq;
		2182	}
1371		2183
1372	delete $cf::MAP{$self->path};	2184	delete $cf::MAP{$self->path};
1373		2185
		2186	$self->deactivate;
1374	$_->clear_links_to ($self) for values %cf::MAP;	2187	$_->clear_links_to ($self) for values %cf::MAP;
		2188	$self->clear;
1375		2189
1376	$self->unlink_save;	2190	$self->unlink_save;
1377	$self->destroy;	2191	$self->destroy;
1378	}	2192	}
1379		2193
1380	my $nuke_counter = "aaaa";	2194	my $nuke_counter = "aaaa";
1381		2195
1382	sub nuke {	2196	sub nuke {
1383	my ($self) = @_;	2197	my ($self) = @_;
1384		2198
		2199	{
		2200	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2201
		2202	delete $cf::MAP{$self->path};
		2203
		2204	$self->unlink_save;
		2205
		2206	bless $self, "cf::map";
		2207	delete $self->{deny_reset};
1385	$self->{deny_save} = 1;	2208	$self->{deny_save} = 1;
1386	$self->reset_timeout (1);	2209	$self->reset_timeout (1);
1387	$self->rename ("{nuke}/" . ($nuke_counter++));	2210	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2211
		2212	$cf::MAP{$self->path} = $self;
		2213	}
		2214
1388	$self->reset; # polite request, might not happen	2215	$self->reset; # polite request, might not happen
1389	}	2216	}
1390		2217
1391	sub customise_for {	2218	=item $maps = cf::map::tmp_maps
1392	my ($map, $ob) = @_;
1393		2219
1394	if ($map->per_player) {	2220	Returns an arrayref with all map paths of currently instantiated and saved
1395	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2221	maps. May block.
		2222
		2223	=cut
		2224
		2225	sub tmp_maps() {
1396	}	2226	[
1397		2227	map {
1398	$map	2228	utf8::decode $_;
		2229	/\.map$/
		2230	? normalise $_
		2231	: ()
		2232	} @{ aio_readdir $TMPDIR or [] }
		2233	]
1399	}	2234	}
1400		2235
1401	sub emergency_save {	2236	=item $maps = cf::map::random_maps
1402	local $cf::FREEZE = 1;
1403		2237
1404	warn "enter emergency map save\n";	2238	Returns an arrayref with all map paths of currently instantiated and saved
		2239	random maps. May block.
1405		2240
1406	cf::sync_job {	2241	=cut
1407	warn "begin emergency map save\n";
1408	$_->save for values %cf::MAP;
1409	};
1410		2242
1411	warn "end emergency map save\n";	2243	sub random_maps() {
		2244	[
		2245	map {
		2246	utf8::decode $_;
		2247	/\.map$/
		2248	? normalise "?random/$_"
		2249	: ()
		2250	} @{ aio_readdir $RANDOMDIR or [] }
		2251	]
		2252	}
		2253
		2254	=item cf::map::unique_maps
		2255
		2256	Returns an arrayref of paths of all shared maps that have
		2257	instantiated unique items. May block.
		2258
		2259	=cut
		2260
		2261	sub unique_maps() {
		2262	[
		2263	map {
		2264	utf8::decode $_;
		2265	/\.map$/
		2266	? normalise $_
		2267	: ()
		2268	} @{ aio_readdir $UNIQUEDIR or [] }
		2269	]
1412	}	2270	}
1413		2271
1414	package cf;	2272	package cf;
1415		2273
1416	=back	2274	=back
1417		2275
		2276	=head3 cf::object
		2277
		2278	=cut
		2279
		2280	package cf::object;
		2281
		2282	=over 4
		2283
		2284	=item $ob->inv_recursive
		2285
		2286	Returns the inventory of the object _and_ their inventories, recursively.
		2287
		2288	=cut
		2289
		2290	sub inv_recursive_;
		2291	sub inv_recursive_ {
		2292	map { $_, inv_recursive_ $_->inv } @_
		2293	}
		2294
		2295	sub inv_recursive {
		2296	inv_recursive_ inv $_[0]
		2297	}
		2298
		2299	=item $ref = $ob->ref
		2300
		2301	creates and returns a persistent reference to an objetc that can be stored as a string.
		2302
		2303	=item $ob = cf::object::deref ($refstring)
		2304
		2305	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2306	even if the object actually exists. May block.
		2307
		2308	=cut
		2309
		2310	sub deref {
		2311	my ($ref) = @_;
		2312
		2313	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2314	my ($uuid, $name) = ($1, $2);
		2315	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2316	or return;
		2317	$pl->ob->uuid eq $uuid
		2318	or return;
		2319
		2320	$pl->ob
		2321	} else {
		2322	warn "$ref: cannot resolve object reference\n";
		2323	undef
		2324	}
		2325	}
		2326
		2327	package cf;
		2328
		2329	=back
1418		2330
1419	=head3 cf::object::player	2331	=head3 cf::object::player
1420		2332
1421	=over 4	2333	=over 4
1422		2334
…		…
1436		2348
1437	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2349	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1438		2350
1439	if ($self->{record_replies}) {	2351	if ($self->{record_replies}) {
1440	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2352	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2353
1441	} else {	2354	} else {
		2355	my $pl = $self->contr;
		2356
		2357	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2358	my $dialog = $pl->{npc_dialog};
		2359	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2360
		2361	} else {
1442	$msg = $npc->name . " says: $msg" if $npc;	2362	$msg = $npc->name . " says: $msg" if $npc;
1443	$self->message ($msg, $flags);	2363	$self->message ($msg, $flags);
		2364	}
1444	}	2365	}
		2366	}
		2367
		2368	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2369
		2370	=cut
		2371
		2372	sub cf::object::send_msg {
		2373	my $pl = shift->contr
		2374	or return;
		2375	$pl->send_msg (@_);
1445	}	2376	}
1446		2377
1447	=item $player_object->may ("access")	2378	=item $player_object->may ("access")
1448		2379
1449	Returns wether the given player is authorized to access resource "access"	2380	Returns wether the given player is authorized to access resource "access"
…		…
1462		2393
1463	=item $player_object->enter_link	2394	=item $player_object->enter_link
1464		2395
1465	Freezes the player and moves him/her to a special map (C<{link}>).	2396	Freezes the player and moves him/her to a special map (C<{link}>).
1466		2397
1467	The player should be reaosnably safe there for short amounts of time. You	2398	The player should be reasonably safe there for short amounts of time. You
1468	I<MUST> call C<leave_link> as soon as possible, though.	2399	I<MUST> call C<leave_link> as soon as possible, though.
1469		2400
		2401	Will never block.
		2402
1470	=item $player_object->leave_link ($map, $x, $y)	2403	=item $player_object->leave_link ($map, $x, $y)
1471		2404
1472	Moves the player out of the specila link map onto the given map. If the	2405	Moves the player out of the special C<{link}> map onto the specified
1473	map is not valid (or omitted), the player will be moved back to the	2406	map. If the map is not valid (or omitted), the player will be moved back
1474	location he/she was before the call to C<enter_link>, or, if that fails,	2407	to the location he/she was before the call to C<enter_link>, or, if that
1475	to the emergency map position.	2408	fails, to the emergency map position.
1476		2409
1477	Might block.	2410	Might block.
1478		2411
1479	=cut	2412	=cut
		2413
		2414	sub link_map {
		2415	unless ($LINK_MAP) {
		2416	$LINK_MAP = cf::map::find "{link}"
		2417	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2418	$LINK_MAP->load;
		2419	}
		2420
		2421	$LINK_MAP
		2422	}
1480		2423
1481	sub cf::object::player::enter_link {	2424	sub cf::object::player::enter_link {
1482	my ($self) = @_;	2425	my ($self) = @_;
1483		2426
1484	$self->deactivate_recursive;	2427	$self->deactivate_recursive;
1485		2428
1486	return if $self->map == $LINK_MAP;	2429	return if UNIVERSAL::isa $self->map, "ext::map_link";
1487		2430
1488	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2431	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1489	if $self->map;	2432	if $self->map && $self->map->{path} ne "{link}";
1490		2433
1491	$self->enter_map ($LINK_MAP, 20, 20);	2434	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1492	}	2435	}
1493		2436
1494	sub cf::object::player::leave_link {	2437	sub cf::object::player::leave_link {
1495	my ($self, $map, $x, $y) = @_;	2438	my ($self, $map, $x, $y) = @_;
		2439
		2440	return unless $self->contr->active;
1496		2441
1497	my $link_pos = delete $self->{_link_pos};	2442	my $link_pos = delete $self->{_link_pos};
1498		2443
1499	unless ($map) {	2444	unless ($map) {
1500	# restore original map position	2445	# restore original map position
1501	($map, $x, $y) = @{ $link_pos || [] };	2446	($map, $x, $y) = @{ $link_pos || [] };
1502	$map = cf::map::find_map $map;	2447	$map = cf::map::find $map;
1503		2448
1504	unless ($map) {	2449	unless ($map) {
1505	($map, $x, $y) = @$EMERGENCY_POSITION;	2450	($map, $x, $y) = @$EMERGENCY_POSITION;
1506	$map = cf::map::find_map $map	2451	$map = cf::map::find $map
1507	or die "FATAL: cannot load emergency map\n";	2452	or die "FATAL: cannot load emergency map\n";
1508	}	2453	}
1509	}	2454	}
1510		2455
1511	($x, $y) = (-1, -1)	2456	($x, $y) = (-1, -1)
…		…
1514	# use -1 or undef as default coordinates, not 0, 0	2459	# use -1 or undef as default coordinates, not 0, 0
1515	($x, $y) = ($map->enter_x, $map->enter_y)	2460	($x, $y) = ($map->enter_x, $map->enter_y)
1516	if $x <=0 && $y <= 0;	2461	if $x <=0 && $y <= 0;
1517		2462
1518	$map->load;	2463	$map->load;
		2464	$map->load_neighbours;
1519		2465
		2466	return unless $self->contr->active;
1520	$self->activate_recursive;	2467	$self->activate_recursive;
		2468
		2469	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1521	$self->enter_map ($map, $x, $y);	2470	$self->enter_map ($map, $x, $y);
1522	}	2471	}
1523		2472
1524	cf::player->attach (	2473	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1525	on_logout => sub {
1526	my ($pl) = @_;
1527		2474
1528	# abort map switching before logout	2475	Moves the player to the given map-path and coordinates by first freezing
1529	if ($pl->ob->{_link_pos}) {	2476	her, loading and preparing them map, calling the provided $check callback
1530	cf::sync_job {	2477	that has to return the map if sucecssful, and then unfreezes the player on
1531	$pl->ob->leave_link	2478	the new (success) or old (failed) map position. In either case, $done will
1532	};	2479	be called at the end of this process.
1533	}
1534	},
1535	on_login => sub {
1536	my ($pl) = @_;
1537		2480
1538	# try to abort aborted map switching on player login :)
1539	# should happen only on crashes
1540	if ($pl->ob->{_link_pos}) {
1541	$pl->ob->enter_link;
1542	Coro::async {
1543	# we need this sleep as the login has a concurrent enter_exit running
1544	# and this sleep increases chances of the player not ending up in scorn
1545	Coro::Timer::sleep 1;
1546	$pl->ob->leave_link;
1547	};
1548	}
1549	},
1550	);
1551
1552	=item $player_object->goto_map ($path, $x, $y)
1553
1554	=cut	2481	=cut
1555		2482
		2483	our $GOTOGEN;
		2484
1556	sub cf::object::player::goto_map {	2485	sub cf::object::player::goto {
1557	my ($self, $path, $x, $y) = @_;	2486	my ($self, $path, $x, $y, $check, $done) = @_;
		2487
		2488	# do generation counting so two concurrent goto's will be executed in-order
		2489	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1558		2490
1559	$self->enter_link;	2491	$self->enter_link;
1560		2492
1561	(Coro::async {	2493	(async {
1562	$path = new cf::path $path;	2494	$Coro::current->{desc} = "player::goto $path $x $y";
1563		2495
1564	my $map = cf::map::find_map $path->as_string;	2496	# *tag paths override both path and x|y
		2497	if ($path =~ /^\*(.*)$/) {
		2498	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2499	my $ob = $obs[rand @obs];
		2500
		2501	# see if we actually can go there
		2502	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2503	$ob = $obs[rand @obs];
		2504	} else {
		2505	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2506	}
		2507	# else put us there anyways for now #d#
		2508
		2509	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2510	} else {
		2511	($path, $x, $y) = (undef, undef, undef);
		2512	}
		2513	}
		2514
		2515	my $map = eval {
		2516	my $map = defined $path ? cf::map::find $path : undef;
		2517
		2518	if ($map) {
1565	$map = $map->customise_for ($self) if $map;	2519	$map = $map->customise_for ($self);
1566		2520	$map = $check->($map) if $check && $map;
1567	# warn "entering ", $map->path, " at ($x, $y)\n"	2521	} else {
1568	# if $map;
1569
1570	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2522	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2523	}
1571		2524
		2525	$map
		2526	};
		2527
		2528	if ($@) {
		2529	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2530	LOG llevError | logBacktrace, Carp::longmess $@;
		2531	}
		2532
		2533	if ($gen == $self->{_goto_generation}) {
		2534	delete $self->{_goto_generation};
1572	$self->leave_link ($map, $x, $y);	2535	$self->leave_link ($map, $x, $y);
		2536	}
		2537
		2538	$done->() if $done;
1573	})->prio (1);	2539	})->prio (1);
1574	}	2540	}
1575		2541
1576	=item $player_object->enter_exit ($exit_object)	2542	=item $player_object->enter_exit ($exit_object)
1577		2543
…		…
1579		2545
1580	sub parse_random_map_params {	2546	sub parse_random_map_params {
1581	my ($spec) = @_;	2547	my ($spec) = @_;
1582		2548
1583	my $rmp = { # defaults	2549	my $rmp = { # defaults
1584	xsize => 10,	2550	xsize => (cf::rndm 15, 40),
1585	ysize => 10,	2551	ysize => (cf::rndm 15, 40),
		2552	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2553	#layout => string,
1586	};	2554	};
1587		2555
1588	for (split /\n/, $spec) {	2556	for (split /\n/, $spec) {
1589	my ($k, $v) = split /\s+/, $_, 2;	2557	my ($k, $v) = split /\s+/, $_, 2;
1590		2558
…		…
1594	$rmp	2562	$rmp
1595	}	2563	}
1596		2564
1597	sub prepare_random_map {	2565	sub prepare_random_map {
1598	my ($exit) = @_;	2566	my ($exit) = @_;
		2567
		2568	my $guard = cf::lock_acquire "exit_prepare:$exit";
1599		2569
1600	# all this does is basically replace the /! path by	2570	# all this does is basically replace the /! path by
1601	# a new random map path (?random/...) with a seed	2571	# a new random map path (?random/...) with a seed
1602	# that depends on the exit object	2572	# that depends on the exit object
1603		2573
1604	my $rmp = parse_random_map_params $exit->msg;	2574	my $rmp = parse_random_map_params $exit->msg;
1605		2575
1606	if ($exit->map) {	2576	if ($exit->map) {
1607	$rmp->{region} = $exit->map->region_name;	2577	$rmp->{region} = $exit->region->name;
1608	$rmp->{origin_map} = $exit->map->path;	2578	$rmp->{origin_map} = $exit->map->path;
1609	$rmp->{origin_x} = $exit->x;	2579	$rmp->{origin_x} = $exit->x;
1610	$rmp->{origin_y} = $exit->y;	2580	$rmp->{origin_y} = $exit->y;
1611	}	2581	}
1612		2582
1613	$rmp->{random_seed} ||= $exit->random_seed;	2583	$rmp->{random_seed} ||= $exit->random_seed;
1614		2584
1615	my $data = cf::to_json $rmp;	2585	my $data = cf::to_json $rmp;
1616	my $md5 = Digest::MD5::md5_hex $data;	2586	my $md5 = Digest::MD5::md5_hex $data;
		2587	my $meta = "$RANDOMDIR/$md5.meta";
1617		2588
1618	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2589	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1619	aio_write $fh, 0, (length $data), $data, 0;	2590	aio_write $fh, 0, (length $data), $data, 0;
		2591	undef $fh;
		2592	aio_rename "$meta~", $meta;
1620		2593
1621	$exit->slaying ("?random/$md5");	2594	$exit->slaying ("?random/$md5");
1622	$exit->msg (undef);	2595	$exit->msg (undef);
1623	}	2596	}
1624	}	2597	}
…		…
1626	sub cf::object::player::enter_exit {	2599	sub cf::object::player::enter_exit {
1627	my ($self, $exit) = @_;	2600	my ($self, $exit) = @_;
1628		2601
1629	return unless $self->type == cf::PLAYER;	2602	return unless $self->type == cf::PLAYER;
1630		2603
		2604	if ($exit->slaying eq "/!") {
		2605	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2606	# the problem is that $exit might not survive long enough
		2607	# so it needs to be done right now, right here
		2608	cf::sync_job { prepare_random_map $exit };
		2609	}
		2610
		2611	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2612	my $hp = $exit->stats->hp;
		2613	my $sp = $exit->stats->sp;
		2614
1631	$self->enter_link;	2615	$self->enter_link;
1632		2616
		2617	# if exit is damned, update players death & WoR home-position
		2618	$self->contr->savebed ($slaying, $hp, $sp)
		2619	if $exit->flag (FLAG_DAMNED);
		2620
1633	(Coro::async {	2621	(async {
		2622	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2623
		2624	$self->deactivate_recursive; # just to be sure
1634	unless (eval {	2625	unless (eval {
1635		2626	$self->goto ($slaying, $hp, $sp);
1636	prepare_random_map $exit
1637	if $exit->slaying eq "/!";
1638
1639	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1640	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1641		2627
1642	1;	2628	1;
1643	}) {	2629	}) {
1644	$self->message ("Something went wrong deep within the crossfire server. "	2630	$self->message ("Something went wrong deep within the crossfire server. "
1645	. "I'll try to bring you back to the map you were before. "	2631	. "I'll try to bring you back to the map you were before. "
1646	. "Please report this to the dungeon master",	2632	. "Please report this to the dungeon master!",
1647	cf::NDI_UNIQUE | cf::NDI_RED);	2633	cf::NDI_UNIQUE | cf::NDI_RED);
1648		2634
1649	warn "ERROR in enter_exit: $@";	2635	warn "ERROR in enter_exit: $@";
1650	$self->leave_link;	2636	$self->leave_link;
1651	}	2637	}
1652	})->prio (1);	2638	})->prio (1);
…		…
1665		2651
1666	sub cf::client::send_drawinfo {	2652	sub cf::client::send_drawinfo {
1667	my ($self, $text, $flags) = @_;	2653	my ($self, $text, $flags) = @_;
1668		2654
1669	utf8::encode $text;	2655	utf8::encode $text;
1670	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2656	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1671	}	2657	}
1672		2658
		2659	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2660
		2661	Send a drawinfo or msg packet to the client, formatting the msg for the
		2662	client if neccessary. C<$type> should be a string identifying the type of
		2663	the message, with C<log> being the default. If C<$color> is negative, suppress
		2664	the message unless the client supports the msg packet.
		2665
		2666	=cut
		2667
		2668	our %CHANNEL = (
		2669	"c/identify" => {
		2670	id => "infobox",
		2671	title => "Identify",
		2672	reply => undef,
		2673	tooltip => "Items recently identified",
		2674	},
		2675	"c/examine" => {
		2676	id => "infobox",
		2677	title => "Examine",
		2678	reply => undef,
		2679	tooltip => "Signs and other items you examined",
		2680	},
		2681	"c/lookat" => {
		2682	id => "infobox",
		2683	title => "Look",
		2684	reply => undef,
		2685	tooltip => "What you saw there",
		2686	},
		2687	);
		2688
		2689	sub cf::client::send_msg {
		2690	my ($self, $channel, $msg, $color, @extra) = @_;
		2691
		2692	$msg = $self->pl->expand_cfpod ($msg);
		2693
		2694	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2695
		2696	# check predefined channels, for the benefit of C
		2697	if ($CHANNEL{$channel}) {
		2698	$channel = $CHANNEL{$channel};
		2699
		2700	$self->ext_msg (channel_info => $channel)
		2701	if $self->can_msg;
		2702
		2703	$channel = $channel->{id};
		2704
		2705	} elsif (ref $channel) {
		2706	# send meta info to client, if not yet sent
		2707	unless (exists $self->{channel}{$channel->{id}}) {
		2708	$self->{channel}{$channel->{id}} = $channel;
		2709	$self->ext_msg (channel_info => $channel)
		2710	if $self->can_msg;
		2711	}
		2712
		2713	$channel = $channel->{id};
		2714	}
		2715
		2716	return unless @extra || length $msg;
		2717
		2718	if ($self->can_msg) {
		2719	# default colour, mask it out
		2720	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2721	if $color & cf::NDI_DEF;
		2722
		2723	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2724	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2725	} else {
		2726	if ($color >= 0) {
		2727	# replace some tags by gcfclient-compatible ones
		2728	for ($msg) {
		2729	1 while
		2730	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2731	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2732	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2733	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2734	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2735	}
		2736
		2737	$color &= cf::NDI_COLOR_MASK;
		2738
		2739	utf8::encode $msg;
		2740
		2741	if (0 && $msg =~ /\[/) {
		2742	# COMMAND/INFO
		2743	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2744	} else {
		2745	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2746	$self->send_packet ("drawinfo $color $msg")
		2747	}
		2748	}
		2749	}
		2750	}
		2751
		2752	=item $client->ext_msg ($type, @msg)
		2753
		2754	Sends an ext event to the client.
		2755
		2756	=cut
		2757
		2758	sub cf::client::ext_msg($$@) {
		2759	my ($self, $type, @msg) = @_;
		2760
		2761	if ($self->extcmd == 2) {
		2762	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2763	} elsif ($self->extcmd == 1) { # TODO: remove
		2764	push @msg, msgtype => "event_$type";
		2765	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2766	}
		2767	}
		2768
		2769	=item $client->ext_reply ($msgid, @msg)
		2770
		2771	Sends an ext reply to the client.
		2772
		2773	=cut
		2774
		2775	sub cf::client::ext_reply($$@) {
		2776	my ($self, $id, @msg) = @_;
		2777
		2778	if ($self->extcmd == 2) {
		2779	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2780	} elsif ($self->extcmd == 1) {
		2781	#TODO: version 1, remove
		2782	unshift @msg, msgtype => "reply", msgid => $id;
		2783	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2784	}
		2785	}
1673		2786
1674	=item $success = $client->query ($flags, "text", \&cb)	2787	=item $success = $client->query ($flags, "text", \&cb)
1675		2788
1676	Queues a query to the client, calling the given callback with	2789	Queues a query to the client, calling the given callback with
1677	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2790	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1678	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2791	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1679		2792
1680	Queries can fail, so check the return code. Or don't, as queries will become	2793	Queries can fail, so check the return code. Or don't, as queries will
1681	reliable at some point in the future.	2794	become reliable at some point in the future.
1682		2795
1683	=cut	2796	=cut
1684		2797
1685	sub cf::client::query {	2798	sub cf::client::query {
1686	my ($self, $flags, $text, $cb) = @_;	2799	my ($self, $flags, $text, $cb) = @_;
…		…
1694	utf8::encode $text;	2807	utf8::encode $text;
1695	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2808	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1696		2809
1697	$self->send_packet ($self->{query_queue}[0][0])	2810	$self->send_packet ($self->{query_queue}[0][0])
1698	if @{ $self->{query_queue} } == 1;	2811	if @{ $self->{query_queue} } == 1;
		2812
		2813	1
1699	}	2814	}
1700		2815
1701	cf::client->attach (	2816	cf::client->attach (
		2817	on_connect => sub {
		2818	my ($ns) = @_;
		2819
		2820	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2821	},
1702	on_reply => sub {	2822	on_reply => sub {
1703	my ($ns, $msg) = @_;	2823	my ($ns, $msg) = @_;
1704		2824
1705	# this weird shuffling is so that direct followup queries	2825	# this weird shuffling is so that direct followup queries
1706	# get handled first	2826	# get handled first
1707	my $queue = delete $ns->{query_queue};	2827	my $queue = delete $ns->{query_queue}
		2828	or return; # be conservative, not sure how that can happen, but we saw a crash here
1708		2829
1709	(shift @$queue)->[1]->($msg);	2830	(shift @$queue)->[1]->($msg);
		2831	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1710		2832
1711	push @{ $ns->{query_queue} }, @$queue;	2833	push @{ $ns->{query_queue} }, @$queue;
1712		2834
1713	if (@{ $ns->{query_queue} } == @$queue) {	2835	if (@{ $ns->{query_queue} } == @$queue) {
1714	if (@$queue) {	2836	if (@$queue) {
…		…
1716	} else {	2838	} else {
1717	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2839	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1718	}	2840	}
1719	}	2841	}
1720	},	2842	},
		2843	on_exticmd => sub {
		2844	my ($ns, $buf) = @_;
		2845
		2846	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2847
		2848	if (ref $msg) {
		2849	my ($type, $reply, @payload) =
		2850	"ARRAY" eq ref $msg
		2851	? @$msg
		2852	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2853
		2854	my @reply;
		2855
		2856	if (my $cb = $EXTICMD{$type}) {
		2857	@reply = $cb->($ns, @payload);
		2858	}
		2859
		2860	$ns->ext_reply ($reply, @reply)
		2861	if $reply;
		2862
		2863	} else {
		2864	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2865	}
		2866
		2867	cf::override;
		2868	},
1721	);	2869	);
1722		2870
1723	=item $client->coro (\&cb)	2871	=item $client->async (\&cb)
1724		2872
1725	Create a new coroutine, running the specified callback. The coroutine will	2873	Create a new coroutine, running the specified callback. The coroutine will
1726	be automatically cancelled when the client gets destroyed (e.g. on logout,	2874	be automatically cancelled when the client gets destroyed (e.g. on logout,
1727	or loss of connection).	2875	or loss of connection).
1728		2876
1729	=cut	2877	=cut
1730		2878
1731	sub cf::client::coro {	2879	sub cf::client::async {
1732	my ($self, $cb) = @_;	2880	my ($self, $cb) = @_;
1733		2881
1734	my $coro; $coro = async {	2882	my $coro = &Coro::async ($cb);
1735	eval {
1736	$cb->();
1737	};
1738	warn $@ if $@;
1739	};
1740		2883
1741	$coro->on_destroy (sub {	2884	$coro->on_destroy (sub {
1742	delete $self->{_coro}{$coro+0};	2885	delete $self->{_coro}{$coro+0};
1743	});	2886	});
1744		2887
…		…
1771	our $safe = new Safe "safe";	2914	our $safe = new Safe "safe";
1772	our $safe_hole = new Safe::Hole;	2915	our $safe_hole = new Safe::Hole;
1773		2916
1774	$SIG{FPE} = 'IGNORE';	2917	$SIG{FPE} = 'IGNORE';
1775		2918
1776	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2919	$safe->permit_only (Opcode::opset qw(
		2920	:base_core :base_mem :base_orig :base_math
		2921	grepstart grepwhile mapstart mapwhile
		2922	sort time
		2923	));
1777		2924
1778	# here we export the classes and methods available to script code	2925	# here we export the classes and methods available to script code
1779		2926
1780	=pod	2927	=pod
1781		2928
1782	The following fucntions and emthods are available within a safe environment:	2929	The following functions and methods are available within a safe environment:
1783		2930
1784	cf::object contr pay_amount pay_player map	2931	cf::object
		2932	contr pay_amount pay_player map x y force_find force_add destroy
		2933	insert remove name archname title slaying race decrease_ob_nr
		2934
1785	cf::object::player player	2935	cf::object::player
1786	cf::player peaceful	2936	player
1787	cf::map trigger	2937
		2938	cf::player
		2939	peaceful
		2940
		2941	cf::map
		2942	trigger
1788		2943
1789	=cut	2944	=cut
1790		2945
1791	for (	2946	for (
1792	["cf::object" => qw(contr pay_amount pay_player map)],	2947	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2948	insert remove inv name archname title slaying race
		2949	decrease_ob_nr destroy)],
1793	["cf::object::player" => qw(player)],	2950	["cf::object::player" => qw(player)],
1794	["cf::player" => qw(peaceful)],	2951	["cf::player" => qw(peaceful)],
1795	["cf::map" => qw(trigger)],	2952	["cf::map" => qw(trigger)],
1796	) {	2953	) {
1797	no strict 'refs';	2954	no strict 'refs';
…		…
1868	=back	3025	=back
1869		3026
1870	=cut	3027	=cut
1871		3028
1872	#############################################################################	3029	#############################################################################
		3030	# the server's init and main functions
1873		3031
1874	=head2 EXTENSION DATABASE SUPPORT	3032	sub load_facedata($) {
		3033	my ($path) = @_;
1875		3034
1876	Crossfire maintains a very simple database for extension use. It can	3035	# HACK to clear player env face cache, we need some signal framework
1877	currently store anything that can be serialised using Storable, which	3036	# for this (global event?)
1878	excludes objects.	3037	%ext::player_env::MUSIC_FACE_CACHE = ();
1879		3038
1880	The parameter C<$family> should best start with the name of the extension	3039	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1881	using it, it should be unique.
1882		3040
1883	=over 4	3041	warn "loading facedata from $path\n";
1884		3042
1885	=item $hashref = cf::db_get $family	3043	my $facedata;
		3044	0 < aio_load $path, $facedata
		3045	or die "$path: $!";
1886		3046
1887	Return a hashref for use by the extension C<$family>, which can be	3047	$facedata = Coro::Storable::thaw $facedata;
1888	modified. After modifications, you have to call C<cf::db_dirty> or
1889	C<cf::db_sync>.
1890		3048
1891	=item $value = cf::db_get $family => $key	3049	$facedata->{version} == 2
		3050	or cf::cleanup "$path: version mismatch, cannot proceed.";
1892		3051
1893	Returns a single value from the database	3052	# patch in the exptable
1894		3053	$facedata->{resource}{"res/exp_table"} = {
1895	=item cf::db_put $family => $hashref	3054	type => FT_RSRC,
1896		3055	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1897	Stores the given family hashref into the database. Updates are delayed, if
1898	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1899
1900	=item cf::db_put $family => $key => $value
1901
1902	Stores the given C<$value> in the family hash. Updates are delayed, if you
1903	want the data to be synced to disk immediately, use C<cf::db_sync>.
1904
1905	=item cf::db_dirty
1906
1907	Marks the database as dirty, to be updated at a later time.
1908
1909	=item cf::db_sync
1910
1911	Immediately write the database to disk I<if it is dirty>.
1912
1913	=cut
1914
1915	our $DB;
1916
1917	{
1918	my $path = cf::localdir . "/database.pst";
1919
1920	sub db_load() {
1921	$DB = stat $path ? Storable::retrieve $path : { };
1922	}
1923
1924	my $pid;
1925
1926	sub db_save() {
1927	waitpid $pid, 0 if $pid;
1928	if (0 == ($pid = fork)) {
1929	$DB->{_meta}{version} = 1;
1930	Storable::nstore $DB, "$path~";
1931	rename "$path~", $path;
1932	cf::_exit 0 if defined $pid;
1933	}
1934	}
1935
1936	my $dirty;
1937
1938	sub db_sync() {
1939	db_save if $dirty;
1940	undef $dirty;
1941	}
1942
1943	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1944	db_sync;
1945	});	3056	};
		3057	cf::cede_to_tick;
1946		3058
1947	sub db_dirty() {
1948	$dirty = 1;
1949	$idle->start;
1950	}	3059	{
		3060	my $faces = $facedata->{faceinfo};
1951		3061
1952	sub db_get($;$) {	3062	while (my ($face, $info) = each %$faces) {
1953	@_ >= 2	3063	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1954	? $DB->{$_[0]}{$_[1]}	3064	cf::face::set_visibility $idx, $info->{visibility};
1955	: ($DB->{$_[0]} ||= { })	3065	cf::face::set_magicmap $idx, $info->{magicmap};
1956	}	3066	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3067	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1957		3068
1958	sub db_put($$;$) {	3069	cf::cede_to_tick;
1959	if (@_ >= 3) {
1960	$DB->{$_[0]}{$_[1]} = $_[2];
1961	} else {
1962	$DB->{$_[0]} = $_[1];
1963	}
1964	db_dirty;
1965	}
1966
1967	cf::global->attach (
1968	prio => 10000,
1969	on_cleanup => sub {
1970	db_sync;
1971	},	3070	}
1972	);
1973	}
1974		3071
1975	#############################################################################	3072	while (my ($face, $info) = each %$faces) {
1976	# the server's main()	3073	next unless $info->{smooth};
		3074	my $idx = cf::face::find $face
		3075	or next;
		3076	if (my $smooth = cf::face::find $info->{smooth}) {
		3077	cf::face::set_smooth $idx, $smooth;
		3078	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3079	} else {
		3080	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3081	}
1977		3082
1978	sub cfg_load {	3083	cf::cede_to_tick;
		3084	}
		3085	}
		3086
		3087	{
		3088	my $anims = $facedata->{animinfo};
		3089
		3090	while (my ($anim, $info) = each %$anims) {
		3091	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3092	cf::cede_to_tick;
		3093	}
		3094
		3095	cf::anim::invalidate_all; # d'oh
		3096	}
		3097
		3098	{
		3099	# TODO: for gcfclient pleasure, we should give resources
		3100	# that gcfclient doesn't grok a >10000 face index.
		3101	my $res = $facedata->{resource};
		3102
		3103	my $soundconf = delete $res->{"res/sound.conf"};
		3104
		3105	while (my ($name, $info) = each %$res) {
		3106	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3107	my $data;
		3108
		3109	if ($info->{type} & 1) {
		3110	# prepend meta info
		3111
		3112	my $meta = $enc->encode ({
		3113	name => $name,
		3114	%{ $info->{meta} || {} },
		3115	});
		3116
		3117	$data = pack "(w/a*)*", $meta, $info->{data};
		3118	} else {
		3119	$data = $info->{data};
		3120	}
		3121
		3122	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3123	cf::face::set_type $idx, $info->{type};
		3124
		3125	cf::cede_to_tick;
		3126	}
		3127
		3128	if ($soundconf) {
		3129	$soundconf = $enc->decode (delete $soundconf->{data});
		3130
		3131	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3132	my $sound = $soundconf->{compat}[$_]
		3133	or next;
		3134
		3135	my $face = cf::face::find "sound/$sound->[1]";
		3136	cf::sound::set $sound->[0] => $face;
		3137	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3138	}
		3139
		3140	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3141	my $face = cf::face::find "sound/$v";
		3142	cf::sound::set $k => $face;
		3143	}
		3144	}
		3145	}
		3146
		3147	1
		3148	}
		3149
		3150	register_exticmd fx_want => sub {
		3151	my ($ns, $want) = @_;
		3152
		3153	while (my ($k, $v) = each %$want) {
		3154	$ns->fx_want ($k, $v);
		3155	}
		3156	};
		3157
		3158	sub reload_regions {
		3159	# HACK to clear player env face cache, we need some signal framework
		3160	# for this (global event?)
		3161	%ext::player_env::MUSIC_FACE_CACHE = ();
		3162
		3163	load_resource_file "$MAPDIR/regions"
		3164	or die "unable to load regions file\n";
		3165
		3166	for (cf::region::list) {
		3167	$_->{match} = qr/$_->{match}/
		3168	if exists $_->{match};
		3169	}
		3170	}
		3171
		3172	sub reload_facedata {
		3173	load_facedata "$DATADIR/facedata"
		3174	or die "unable to load facedata\n";
		3175	}
		3176
		3177	sub reload_archetypes {
		3178	load_resource_file "$DATADIR/archetypes"
		3179	or die "unable to load archetypes\n";
		3180	#d# NEED to laod twice to resolve forward references
		3181	# this really needs to be done in an extra post-pass
		3182	# (which needs to be synchronous, so solve it differently)
		3183	load_resource_file "$DATADIR/archetypes"
		3184	or die "unable to load archetypes\n";
		3185	}
		3186
		3187	sub reload_treasures {
		3188	load_resource_file "$DATADIR/treasures"
		3189	or die "unable to load treasurelists\n";
		3190	}
		3191
		3192	sub reload_resources {
		3193	warn "reloading resource files...\n";
		3194
		3195	reload_regions;
		3196	reload_facedata;
		3197	#reload_archetypes;#d#
		3198	reload_archetypes;
		3199	reload_treasures;
		3200
		3201	warn "finished reloading resource files\n";
		3202	}
		3203
		3204	sub init {
		3205	reload_resources;
		3206	}
		3207
		3208	sub reload_config {
1979	open my $fh, "<:utf8", cf::confdir . "/config"	3209	open my $fh, "<:utf8", "$CONFDIR/config"
1980	or return;	3210	or return;
1981		3211
1982	local $/;	3212	local $/;
1983	*CFG = YAML::Syck::Load <$fh>;	3213	*CFG = YAML::Syck::Load <$fh>;
		3214
		3215	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3216
		3217	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3218	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3219
		3220	if (exists $CFG{mlockall}) {
		3221	eval {
		3222	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3223	and die "WARNING: m(un)lockall failed: $!\n";
		3224	};
		3225	warn $@ if $@;
		3226	}
1984	}	3227	}
1985		3228
1986	sub main {	3229	sub main {
1987	# we must not ever block the main coroutine	3230	# we must not ever block the main coroutine
1988	local $Coro::idle = sub {	3231	local $Coro::idle = sub {
1989	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3232	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1990	(Coro::unblock_sub {	3233	(async {
		3234	$Coro::current->{desc} = "IDLE BUG HANDLER";
1991	Event::one_event;	3235	Event::one_event;
1992	})->();	3236	})->prio (Coro::PRIO_MAX);
1993	};	3237	};
1994		3238
1995	cfg_load;	3239	reload_config;
1996	db_load;	3240	db_init;
1997	load_extensions;	3241	load_extensions;
		3242
		3243	$TICK_WATCHER->start;
1998	Event::loop;	3244	Event::loop;
1999	}	3245	}
2000		3246
2001	#############################################################################	3247	#############################################################################
2002	# initialisation	3248	# initialisation and cleanup
2003		3249
		3250	# install some emergency cleanup handlers
		3251	BEGIN {
		3252	for my $signal (qw(INT HUP TERM)) {
		3253	Event->signal (
		3254	reentrant => 0,
		3255	data => WF_AUTOCANCEL,
		3256	signal => $signal,
		3257	prio => 0,
		3258	cb => sub {
		3259	cf::cleanup "SIG$signal";
		3260	},
		3261	);
		3262	}
		3263	}
		3264
		3265	sub write_runtime {
		3266	my $runtime = "$LOCALDIR/runtime";
		3267
		3268	# first touch the runtime file to show we are still running:
		3269	# the fsync below can take a very very long time.
		3270
		3271	IO::AIO::aio_utime $runtime, undef, undef;
		3272
		3273	my $guard = cf::lock_acquire "write_runtime";
		3274
		3275	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3276	or return;
		3277
		3278	my $value = $cf::RUNTIME + 90 + 10;
		3279	# 10 is the runtime save interval, for a monotonic clock
		3280	# 60 allows for the watchdog to kill the server.
		3281
		3282	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3283	and return;
		3284
		3285	# always fsync - this file is important
		3286	aio_fsync $fh
		3287	and return;
		3288
		3289	# touch it again to show we are up-to-date
		3290	aio_utime $fh, undef, undef;
		3291
		3292	close $fh
		3293	or return;
		3294
		3295	aio_rename "$runtime~", $runtime
		3296	and return;
		3297
		3298	warn "runtime file written.\n";
		3299
		3300	1
		3301	}
		3302
		3303	sub emergency_save() {
		3304	my $freeze_guard = cf::freeze_mainloop;
		3305
		3306	warn "enter emergency perl save\n";
		3307
		3308	cf::sync_job {
		3309	# use a peculiar iteration method to avoid tripping on perl
		3310	# refcount bugs in for. also avoids problems with players
		3311	# and maps saved/destroyed asynchronously.
		3312	warn "begin emergency player save\n";
		3313	for my $login (keys %cf::PLAYER) {
		3314	my $pl = $cf::PLAYER{$login} or next;
		3315	$pl->valid or next;
		3316	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3317	$pl->save;
		3318	}
		3319	warn "end emergency player save\n";
		3320
		3321	warn "begin emergency map save\n";
		3322	for my $path (keys %cf::MAP) {
		3323	my $map = $cf::MAP{$path} or next;
		3324	$map->valid or next;
		3325	$map->save;
		3326	}
		3327	warn "end emergency map save\n";
		3328
		3329	warn "begin emergency database checkpoint\n";
		3330	BDB::db_env_txn_checkpoint $DB_ENV;
		3331	warn "end emergency database checkpoint\n";
		3332	};
		3333
		3334	warn "leave emergency perl save\n";
		3335	}
		3336
		3337	sub post_cleanup {
		3338	my ($make_core) = @_;
		3339
		3340	warn Carp::longmess "post_cleanup backtrace"
		3341	if $make_core;
		3342	}
		3343
2004	sub reload() {	3344	sub do_reload_perl() {
2005	# can/must only be called in main	3345	# can/must only be called in main
2006	if ($Coro::current != $Coro::main) {	3346	if ($Coro::current != $Coro::main) {
2007	warn "can only reload from main coroutine\n";	3347	warn "can only reload from main coroutine";
2008	return;	3348	return;
2009	}	3349	}
2010		3350
2011	warn "reloading...";	3351	warn "reloading...";
2012		3352
2013	local $FREEZE = 1;	3353	warn "entering sync_job";
		3354
		3355	cf::sync_job {
		3356	cf::write_runtime; # external watchdog should not bark
2014	cf::emergency_save;	3357	cf::emergency_save;
		3358	cf::write_runtime; # external watchdog should not bark
2015		3359
2016	eval {	3360	warn "syncing database to disk";
		3361	BDB::db_env_txn_checkpoint $DB_ENV;
		3362
2017	# if anything goes wrong in here, we should simply crash as we already saved	3363	# if anything goes wrong in here, we should simply crash as we already saved
2018		3364
2019	# cancel all watchers	3365	warn "cancelling all WF_AUTOCANCEL watchers";
2020	for (Event::all_watchers) {	3366	for (Event::all_watchers) {
2021	$_->cancel if $_->data & WF_AUTOCANCEL;	3367	$_->cancel if $_->data & WF_AUTOCANCEL;
2022	}	3368	}
2023		3369
		3370	warn "flushing outstanding aio requests";
		3371	for (;;) {
		3372	BDB::flush;
		3373	IO::AIO::flush;
		3374	Coro::cede;
		3375	last unless IO::AIO::nreqs || BDB::nreqs;
		3376	warn "iterate...";
		3377	}
		3378
		3379	++$RELOAD;
		3380
2024	# cancel all extension coros	3381	warn "cancelling all extension coros";
2025	$_->cancel for values %EXT_CORO;	3382	$_->cancel for values %EXT_CORO;
2026	%EXT_CORO = ();	3383	%EXT_CORO = ();
2027		3384
2028	# unload all extensions	3385	warn "removing commands";
2029	for (@exts) {	3386	%COMMAND = ();
		3387
		3388	warn "removing ext/exti commands";
		3389	%EXTCMD = ();
		3390	%EXTICMD = ();
		3391
		3392	warn "unloading/nuking all extensions";
		3393	for my $pkg (@EXTS) {
2030	warn "unloading <$_>";	3394	warn "... unloading $pkg";
2031	unload_extension $_;	3395
		3396	if (my $cb = $pkg->can ("unload")) {
		3397	eval {
		3398	$cb->($pkg);
		3399	1
		3400	} or warn "$pkg unloaded, but with errors: $@";
2032	}	3401	}
2033		3402
		3403	warn "... nuking $pkg";
		3404	Symbol::delete_package $pkg;
		3405	}
		3406
2034	# unload all modules loaded from $LIBDIR	3407	warn "unloading all perl modules loaded from $LIBDIR";
2035	while (my ($k, $v) = each %INC) {	3408	while (my ($k, $v) = each %INC) {
2036	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3409	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2037		3410
2038	warn "removing <$k>";	3411	warn "... unloading $k";
2039	delete $INC{$k};	3412	delete $INC{$k};
2040		3413
2041	$k =~ s/\.pm$//;	3414	$k =~ s/\.pm$//;
2042	$k =~ s/\//::/g;	3415	$k =~ s/\//::/g;
2043		3416
…		…
2046	}	3419	}
2047		3420
2048	Symbol::delete_package $k;	3421	Symbol::delete_package $k;
2049	}	3422	}
2050		3423
2051	# sync database to disk
2052	cf::db_sync;
2053	IO::AIO::flush;
2054
2055	# get rid of safe::, as good as possible	3424	warn "getting rid of safe::, as good as possible";
2056	Symbol::delete_package "safe::$_"	3425	Symbol::delete_package "safe::$_"
2057	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3426	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2058		3427
2059	# remove register_script_function callbacks
2060	# TODO
2061
2062	# unload cf.pm "a bit"	3428	warn "unloading cf.pm \"a bit\"";
2063	delete $INC{"cf.pm"};	3429	delete $INC{"cf.pm"};
		3430	delete $INC{"cf/pod.pm"};
2064		3431
2065	# don't, removes xs symbols, too,	3432	# don't, removes xs symbols, too,
2066	# and global variables created in xs	3433	# and global variables created in xs
2067	#Symbol::delete_package __PACKAGE__;	3434	#Symbol::delete_package __PACKAGE__;
2068		3435
2069	# reload cf.pm	3436	warn "unload completed, starting to reload now";
		3437
2070	warn "reloading cf.pm";	3438	warn "reloading cf.pm";
2071	require cf;	3439	require cf;
2072	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3440	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2073		3441
2074	# load config and database again	3442	warn "loading config and database again";
2075	cf::cfg_load;	3443	cf::reload_config;
2076	cf::db_load;
2077		3444
2078	# load extensions
2079	warn "load extensions";	3445	warn "loading extensions";
2080	cf::load_extensions;	3446	cf::load_extensions;
2081		3447
2082	# reattach attachments to objects	3448	warn "reattaching attachments to objects/players";
2083	warn "reattach";	3449	_global_reattach; # objects, sockets
2084	_global_reattach;	3450	warn "reattaching attachments to maps";
2085	};	3451	reattach $_ for values %MAP;
		3452	warn "reattaching attachments to players";
		3453	reattach $_ for values %PLAYER;
2086		3454
2087	if ($@) {	3455	warn "leaving sync_job";
		3456
		3457	1
		3458	} or do {
2088	warn $@;	3459	warn $@;
2089	warn "error while reloading, exiting.";	3460	warn "error while reloading, exiting.";
2090	exit 1;	3461	exit 1;
2091	}	3462	};
2092		3463
2093	warn "reloaded successfully";	3464	warn "reloaded";
2094	};	3465	};
2095		3466
2096	#############################################################################	3467	our $RELOAD_WATCHER; # used only during reload
2097		3468
2098	unless ($LINK_MAP) {	3469	sub reload_perl() {
2099	$LINK_MAP = cf::map::new;	3470	# doing reload synchronously and two reloads happen back-to-back,
		3471	# coro crashes during coro_state_free->destroy here.
2100		3472
2101	$LINK_MAP->width (41);	3473	$RELOAD_WATCHER ||= Event->timer (
2102	$LINK_MAP->height (41);	3474	reentrant => 0,
2103	$LINK_MAP->alloc;
2104	$LINK_MAP->path ("{link}");
2105	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2106	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2107
2108	# dirty hack because... archetypes are not yet loaded
2109	Event->timer (
2110	after => 2,	3475	after => 0,
		3476	data => WF_AUTOCANCEL,
2111	cb => sub {	3477	cb => sub {
2112	$_[0]->w->cancel;	3478	do_reload_perl;
2113		3479	undef $RELOAD_WATCHER;
2114	# provide some exits "home"
2115	my $exit = cf::object::new "exit";
2116
2117	$exit->slaying ($EMERGENCY_POSITION->[0]);
2118	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2119	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2120
2121	$LINK_MAP->insert ($exit->clone, 19, 19);
2122	$LINK_MAP->insert ($exit->clone, 19, 20);
2123	$LINK_MAP->insert ($exit->clone, 19, 21);
2124	$LINK_MAP->insert ($exit->clone, 20, 19);
2125	$LINK_MAP->insert ($exit->clone, 20, 21);
2126	$LINK_MAP->insert ($exit->clone, 21, 19);
2127	$LINK_MAP->insert ($exit->clone, 21, 20);
2128	$LINK_MAP->insert ($exit->clone, 21, 21);
2129
2130	$exit->destroy;
2131	});	3480	},
2132		3481	);
2133	$LINK_MAP->{deny_save} = 1;
2134	$LINK_MAP->{deny_reset} = 1;
2135
2136	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2137	}	3482	}
2138
2139	register "<global>", __PACKAGE__;
2140		3483
2141	register_command "reload" => sub {	3484	register_command "reload" => sub {
2142	my ($who, $arg) = @_;	3485	my ($who, $arg) = @_;
2143		3486
2144	if ($who->flag (FLAG_WIZ)) {	3487	if ($who->flag (FLAG_WIZ)) {
2145	$who->message ("start of reload.");
2146	reload;
2147	$who->message ("end of reload.");	3488	$who->message ("reloading server.");
		3489	async {
		3490	$Coro::current->{desc} = "perl_reload";
		3491	reload_perl;
		3492	};
2148	}	3493	}
2149	};	3494	};
2150		3495
2151	unshift @INC, $LIBDIR;	3496	unshift @INC, $LIBDIR;
		3497
		3498	my $bug_warning = 0;
		3499
		3500	our @WAIT_FOR_TICK;
		3501	our @WAIT_FOR_TICK_BEGIN;
		3502
		3503	sub wait_for_tick {
		3504	return unless $TICK_WATCHER->is_active;
		3505	return if $Coro::current == $Coro::main;
		3506
		3507	my $signal = new Coro::Signal;
		3508	push @WAIT_FOR_TICK, $signal;
		3509	$signal->wait;
		3510	}
		3511
		3512	sub wait_for_tick_begin {
		3513	return unless $TICK_WATCHER->is_active;
		3514	return if $Coro::current == $Coro::main;
		3515
		3516	my $signal = new Coro::Signal;
		3517	push @WAIT_FOR_TICK_BEGIN, $signal;
		3518	$signal->wait;
		3519	}
2152		3520
2153	$TICK_WATCHER = Event->timer (	3521	$TICK_WATCHER = Event->timer (
2154	reentrant => 0,	3522	reentrant => 0,
		3523	parked => 1,
2155	prio => 0,	3524	prio => 0,
2156	at => $NEXT_TICK || $TICK,	3525	at => $NEXT_TICK || $TICK,
2157	data => WF_AUTOCANCEL,	3526	data => WF_AUTOCANCEL,
2158	cb => sub {	3527	cb => sub {
2159	unless ($FREEZE) {	3528	if ($Coro::current != $Coro::main) {
		3529	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3530	unless ++$bug_warning > 10;
		3531	return;
		3532	}
		3533
		3534	$NOW = $tick_start = Event::time;
		3535
2160	cf::server_tick; # one server iteration	3536	cf::server_tick; # one server iteration
		3537
2161	$RUNTIME += $TICK;	3538	$RUNTIME += $TICK;
2162	}
2163
2164	$NEXT_TICK += $TICK;	3539	$NEXT_TICK += $TICK;
2165		3540
		3541	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3542	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3543	Coro::async_pool {
		3544	$Coro::current->{desc} = "runtime saver";
		3545	write_runtime
		3546	or warn "ERROR: unable to write runtime file: $!";
		3547	};
		3548	}
		3549
		3550	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3551	$sig->send;
		3552	}
		3553	while (my $sig = shift @WAIT_FOR_TICK) {
		3554	$sig->send;
		3555	}
		3556
		3557	$NOW = Event::time;
		3558
2166	# if we are delayed by four ticks or more, skip them all	3559	# if we are delayed by four ticks or more, skip them all
2167	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3560	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2168		3561
2169	$TICK_WATCHER->at ($NEXT_TICK);	3562	$TICK_WATCHER->at ($NEXT_TICK);
2170	$TICK_WATCHER->start;	3563	$TICK_WATCHER->start;
		3564
		3565	$LOAD = ($NOW - $tick_start) / $TICK;
		3566	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3567
		3568	_post_tick;
2171	},	3569	},
2172	);	3570	);
2173		3571
		3572	{
		3573	BDB::min_parallel 8;
2174	IO::AIO::max_poll_time $TICK * 0.2;	3574	BDB::max_poll_time $TICK * 0.1;
2175		3575	$BDB_POLL_WATCHER = Event->io (
2176	Event->io (	3576	reentrant => 0,
2177	fd => IO::AIO::poll_fileno,	3577	fd => BDB::poll_fileno,
2178	poll => 'r',	3578	poll => 'r',
2179	prio => 5,	3579	prio => 0,
2180	data => WF_AUTOCANCEL,
2181	cb => \&IO::AIO::poll_cb,
2182	);
2183
2184	Event->timer (
2185	data => WF_AUTOCANCEL,	3580	data => WF_AUTOCANCEL,
		3581	cb => \&BDB::poll_cb,
		3582	);
		3583
		3584	BDB::set_sync_prepare {
		3585	my $status;
		3586	my $current = $Coro::current;
		3587	(
		3588	sub {
		3589	$status = $!;
		3590	$current->ready; undef $current;
		3591	},
		3592	sub {
		3593	Coro::schedule while defined $current;
		3594	$! = $status;
		3595	},
		3596	)
		3597	};
		3598
		3599	unless ($DB_ENV) {
		3600	$DB_ENV = BDB::db_env_create;
		3601	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3602	| BDB::LOG_AUTOREMOVE, 1);
		3603	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3604	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3605
		3606	cf::sync_job {
		3607	eval {
		3608	BDB::db_env_open
		3609	$DB_ENV,
		3610	$BDBDIR,
		3611	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3612	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3613	0666;
		3614
		3615	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3616	};
		3617
		3618	cf::cleanup "db_env_open(db): $@" if $@;
		3619	};
		3620	}
		3621
		3622	$BDB_DEADLOCK_WATCHER = Event->timer (
2186	after => 0,	3623	after => 3,
2187	interval => 10,	3624	interval => 1,
		3625	hard => 1,
		3626	prio => 0,
		3627	data => WF_AUTOCANCEL,
2188	cb => sub {	3628	cb => sub {
2189	(Coro::unblock_sub {	3629	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2190	write_runtime	3630	},
2191	or warn "ERROR: unable to write runtime file: $!";	3631	);
		3632	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3633	after => 11,
		3634	interval => 60,
		3635	hard => 1,
		3636	prio => 0,
		3637	data => WF_AUTOCANCEL,
		3638	cb => sub {
		3639	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3640	},
		3641	);
		3642	$BDB_TRICKLE_WATCHER = Event->timer (
		3643	after => 5,
		3644	interval => 10,
		3645	hard => 1,
		3646	prio => 0,
		3647	data => WF_AUTOCANCEL,
		3648	cb => sub {
		3649	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3650	},
		3651	);
		3652	}
		3653
		3654	{
		3655	IO::AIO::min_parallel 8;
		3656
		3657	undef $Coro::AIO::WATCHER;
		3658	IO::AIO::max_poll_time $TICK * 0.1;
		3659	$AIO_POLL_WATCHER = Event->io (
		3660	reentrant => 0,
		3661	data => WF_AUTOCANCEL,
		3662	fd => IO::AIO::poll_fileno,
		3663	poll => 'r',
		3664	prio => 0,
		3665	cb => \&IO::AIO::poll_cb,
		3666	);
		3667	}
		3668
		3669	my $_log_backtrace;
		3670
		3671	sub _log_backtrace {
		3672	my ($msg, @addr) = @_;
		3673
		3674	$msg =~ s/\n//;
		3675
		3676	# limit the # of concurrent backtraces
		3677	if ($_log_backtrace < 2) {
		3678	++$_log_backtrace;
		3679	async {
		3680	$Coro::current->{desc} = "abt $msg";
		3681
		3682	my @bt = fork_call {
		3683	@addr = map { sprintf "%x", $_ } @addr;
		3684	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3685	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3686	or die "addr2line: $!";
		3687
		3688	my @funcs;
		3689	my @res = <$fh>;
		3690	chomp for @res;
		3691	while (@res) {
		3692	my ($func, $line) = splice @res, 0, 2, ();
		3693	push @funcs, "[$func] $line";
		3694	}
		3695
		3696	@funcs
		3697	};
		3698
		3699	LOG llevInfo, "[ABT] $msg\n";
		3700	LOG llevInfo, "[ABT] $_\n" for @bt;
		3701	--$_log_backtrace;
2192	})->();	3702	};
		3703	} else {
		3704	LOG llevInfo, "[ABT] $msg\n";
		3705	LOG llevInfo, "[ABT] [suppressed]\n";
2193	},	3706	}
2194	);	3707	}
		3708
		3709	# load additional modules
		3710	use cf::pod;
		3711
		3712	END { cf::emergency_save }
2195		3713
2196	1	3714	1
2197		3715

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