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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 2007 UTC vs.
Revision 1.380 by root, Mon Oct 8 13:58:07 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 Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
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 $RANDOM_MAPS = cf::localdir . "/random";	97	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	98
		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 $tick_start; # for load detecting purposes
56		105
57	binmode STDOUT;	106	binmode STDOUT;
58	binmode STDERR;	107	binmode STDERR;
59		108
60	# read virtual server time, if available	109	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
65	}	114	}
66		115
67	mkdir cf::localdir;	116	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		118
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
76		122
77	#############################################################################	123	#############################################################################
78		124
79	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
80		126
…		…
87	=item $cf::RUNTIME	133	=item $cf::RUNTIME
88		134
89	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
90	every server tick.	136	every server tick.
91		137
92	=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
93		141
94	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		146
97	=item $cf::NOW	147	=item $cf::NOW
98		148
99	The time of the last (current) server tick.	149	The time of the last (current) server tick.
100		150
101	=item $cf::TICK	151	=item $cf::TICK
102		152
103	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.
104		164
105	=item %cf::CFG	165	=item %cf::CFG
106		166
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		181
110	=back	182	=back
111		183
112	=cut	184	=cut
113		185
114	BEGIN {	186	BEGIN {
115	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	188	my $msg = join "", @_;
117	utf8::encode $msg;
118		189
119	$msg .= "\n"	190	$msg .= "\n"
120	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
121		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
122	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
123	};	196	};
124	}	197	}
125		198
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		206
133	# 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
134	# within the Safe compartment.	208	# within the Safe compartment.
135	for my $pkg (qw(	209	for my $pkg (qw(
136	cf::global cf::attachable	210	cf::global cf::attachable
…		…
145		219
146	$Event::DIED = sub {	220	$Event::DIED = sub {
147	warn "error in event callback: @_";	221	warn "error in event callback: @_";
148	};	222	};
149		223
150	my %ext_pkg;	224	#############################################################################
151	my @exts;
152	my @hook;
153		225
154	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
155		227
156	=over 4	228	=over 4
157		229
158	=cut	230	=item dumpval $ref
159		231
160	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	}
161		252
162	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
163		254
164	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
165		256
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
174		258
175	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
176		260
177	=cut	261	=cut
178		262
179	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
181	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
183		267
184	=item cf::lock_wait $string	268	=item cf::lock_wait $string
185		269
186	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
187		271
…		…
190	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
191	a Coro::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,
192	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
193	returned.	277	returned.
194		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
195	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
197		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
198	=cut	289	=cut
199		290
200	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
201		293
202	sub lock_wait($) {	294	sub lock_wait($) {
203	my ($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#
204		301
205	# wait for lock, if any	302	# wait for lock, if any
206	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	305	Coro::schedule;
…		…
214		311
215	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
216	lock_wait $key;	313	lock_wait $key;
217		314
218	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
219		317
220	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
223	}	322	}
224	}	323	}
225		324
226	=item cf::async { BLOCK }	325	sub lock_active($) {
227
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229	error instead of exiting the server in case of a problem.
230
231	=cut
232
233	sub async(&) {
234	my ($cb) = @_;	326	my ($key) = @_;
235		327
236	Coro::async {	328	! ! $LOCK{$key}
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}	329	}
241		330
242	sub freeze_mainloop {	331	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
244		333
245	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
246	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
247	$guard	338	$guard
248	}	339	}
249		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 | logBacktrace, 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	my $freeze_guard = freeze_mainloop;	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 = &cf::async ($cb);	477	my $coro = &Coro::async ($cb);
307		478
308	$coro->on_destroy (sub {	479	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	480	delete $EXT_CORO{$coro+0};
310	});	481	});
311	$EXT_CORO{$coro+0} = $coro;	482	$EXT_CORO{$coro+0} = $coro;
312		483
313	$coro	484	$coro
314	}	485	}
315		486
316	sub write_runtime {	487	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		488
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	489	Executes the given code block with the given arguments in a seperate
320	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.
321		493
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	494	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		495
326	aio_fsync $fh	496	sub fork_call(&@) {
327	and return;	497	my ($cb, @args) = @_;
328		498
329	close $fh	499	# we seemingly have to make a local copy of the whole thing,
330	or return;	500	# otherwise perl prematurely frees the stuff :/
		501	# TODO: investigate and fix (likely this will be rather laborious)
331		502
332	aio_rename "$runtime~", $runtime	503	my @res = Coro::Util::fork_eval {
333	and return;	504	reset_signals;
		505	&$cb
		506	}, @args;
334		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
335	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 });
336	}	647	}
337		648
338	=back	649	=back
339		650
340	=cut	651	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		652
462	#############################################################################	653	#############################################################################
463		654
464	=head2 ATTACHABLE OBJECTS	655	=head2 ATTACHABLE OBJECTS
465		656
…		…
467	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")
468	to it. All such attachable objects support the following methods.	659	to it. All such attachable objects support the following methods.
469		660
470	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>
471	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
472	crossfire+).	663	Crossfire TRT).
473		664
474	=over 4	665	=over 4
475		666
476	=item $attachable->attach ($attachment, key => $value...)	667	=item $attachable->attach ($attachment, key => $value...)
477		668
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	782	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	783	our @CB_MAP = ();
593		784
594	my %attachment;	785	my %attachment;
595		786
		787	sub cf::attachable::thawer_merge {
		788	# simply override everything except _meta
		789	local $_[0]{_meta};
		790	%{$_[0]} = %{$_[1]};
		791	}
		792
596	sub _attach_cb($$$$) {	793	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	794	my ($registry, $event, $prio, $cb) = @_;
598		795
599	use sort 'stable';	796	use sort 'stable';
600		797
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	831	$registry = $CB_TYPE[$object_type] ||= [];
635		832
636	} elsif ($type eq "subtype") {	833	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	834	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	835	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	836	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		837
641	} elsif ($type eq "package") {	838	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	839	my $pkg = shift @arg;
643		840
644	while (my ($name, $id) = each %cb_id) {	841	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	870	_attach $registry, $klass, @attach;
674	}	871	}
675		872
676	$obj->{$name} = \%arg;	873	$obj->{$name} = \%arg;
677	} else {	874	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	875	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	876	}
680		877
681	$obj->{_attachment}{$name} = undef;	878	$obj->{_attachment}{$name} = undef;
682	}	879	}
683		880
…		…
685	if (ref $_[0]) {	882	if (ref $_[0]) {
686	_object_attach @_;	883	_object_attach @_;
687	} else {	884	} else {
688	_attach shift->_attach_registry, @_;	885	_attach shift->_attach_registry, @_;
689	}	886	}
		887	_recalc_want;
690	};	888	};
691		889
692	# all those should be optimised	890	# all those should be optimised
693	sub cf::attachable::detach {	891	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	892	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	895	delete $obj->{_attachment}{$name};
698	reattach ($obj);	896	reattach ($obj);
699	} else {	897	} else {
700	Carp::croak "cannot, currently, detach class attachments";	898	Carp::croak "cannot, currently, detach class attachments";
701	}	899	}
		900	_recalc_want;
702	};	901	};
703		902
704	sub cf::attachable::attached {	903	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	904	my ($obj, $name) = @_;
706		905
…		…
721	";	920	";
722	die if $@;	921	die if $@;
723	}	922	}
724		923
725	our $override;	924	our $override;
726	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?
727		926
728	sub override {	927	sub override {
729	$override = 1;	928	$override = 1;
730	@invoke_results = ();	929	@INVOKE_RESULTS = (@_);
731	}	930	}
732		931
733	sub do_invoke {	932	sub do_invoke {
734	my $event = shift;	933	my $event = shift;
735	my $callbacks = shift;	934	my $callbacks = shift;
736		935
737	@invoke_results = ();	936	@INVOKE_RESULTS = ();
738		937
739	local $override;	938	local $override;
740		939
741	for (@$callbacks) {	940	for (@$callbacks) {
742	eval { &{$_->[1]} };	941	eval { &{$_->[1]} };
…		…
759		958
760	Generate an object-specific event with the given arguments.	959	Generate an object-specific event with the given arguments.
761		960
762	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
763	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
764	results (if you must, access C<@cf::invoke_results> directly).	963	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		964
766	=back	965	=back
767		966
768	=cut	967	=cut
769		968
770	#############################################################################	969	#############################################################################
771	# object support	970	# object support
		971	#
		972
		973	sub _can_merge {
		974	my ($ob1, $ob2) = @_;
		975
		976	local $Storable::canonical = 1;
		977	my $fob1 = Storable::freeze $ob1;
		978	my $fob2 = Storable::freeze $ob2;
		979
		980	$fob1 eq $fob2
		981	}
772		982
773	sub reattach {	983	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	984	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	985	my ($obj) = @_;
		986
		987	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		988
777	my $registry = $obj->registry;	989	my $registry = $obj->registry;
778		990
779	@$registry = ();	991	@$registry = ();
780		992
…		…
821	sub object_freezer_save {	1033	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1034	my ($filename, $rdata, $objs) = @_;
823		1035
824	sync_job {	1036	sync_job {
825	if (length $$rdata) {	1037	if (length $$rdata) {
		1038	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1039	warn sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1040	$decname, length $$rdata, scalar @$objs;
828		1041
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1042	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1043	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1044	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	1045	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	1046	close $fh;
834		1047
835	if (@$objs) {	1048	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1051	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1052	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	1053	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	1054	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1055	aio_rename "$filename.pst~", "$filename.pst";
843	}	1056	}
844	} else {	1057	} else {
845	aio_unlink "$filename.pst";	1058	aio_unlink "$filename.pst";
…		…
851	}	1064	}
852	} else {	1065	} else {
853	aio_unlink $filename;	1066	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1067	aio_unlink "$filename.pst";
855	}	1068	}
856	}	1069	};
857	}	1070	}
858		1071
859	sub object_freezer_as_string {	1072	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1073	my ($rdata, $objs) = @_;
861		1074
…		…
873	or return;	1086	or return;
874		1087
875	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
877	or return;	1090	or return;
878	$av = eval { (Storable::thaw $av)->{objs} };
879	}
880		1091
		1092	my $st = eval { Coro::Storable::thaw $av }
		1093	|| eval { my $guard = Coro::Storable::guard; Storable::thaw $av }; #d# compatibility, remove
		1094	$av = $st->{objs};
		1095	}
		1096
		1097	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1098	warn sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1099	$decname, length $data, scalar @{$av || []};
		1100
883	return ($data, $av);	1101	($data, $av)
884	}	1102	}
		1103
		1104	=head2 COMMAND CALLBACKS
		1105
		1106	=over 4
		1107
		1108	=cut
885		1109
886	#############################################################################	1110	#############################################################################
887	# command handling &c	1111	# command handling &c
888		1112
889	=item cf::register_command $name => \&callback($ob,$args);	1113	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1126	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1127	}
904		1128
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1129	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1130
907	Register a callbackf ro execution when the client sends an extcmd packet.	1131	Register a callback for execution when the client sends an (synchronous)
		1132	extcmd packet. Ext commands will be processed in the order they are
		1133	received by the server, like other user commands. The first argument is
		1134	the logged-in player. Ext commands can only be processed after a player
		1135	has logged in successfully.
908		1136
909	If the callback returns something, it is sent back as if reply was being	1137	If the callback returns something, it is sent back as if reply was being
910	called.	1138	called.
911		1139
		1140	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1141
		1142	Register a callback for execution when the client sends an (asynchronous)
		1143	exticmd packet. Exti commands are processed by the server as soon as they
		1144	are received, i.e. out of order w.r.t. other commands. The first argument
		1145	is a client socket. Exti commands can be received anytime, even before
		1146	log-in.
		1147
		1148	If the callback returns something, it is sent back as if reply was being
		1149	called.
		1150
912	=cut	1151	=cut
913		1152
914	sub register_extcmd {	1153	sub register_extcmd {
915	my ($name, $cb) = @_;	1154	my ($name, $cb) = @_;
916		1155
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1156	$EXTCMD{$name} = $cb;
		1157	}
		1158
		1159	sub register_exticmd {
		1160	my ($name, $cb) = @_;
		1161
		1162	$EXTICMD{$name} = $cb;
921	}	1163	}
922		1164
923	cf::player->attach (	1165	cf::player->attach (
924	on_command => sub {	1166	on_command => sub {
925	my ($pl, $name, $params) = @_;	1167	my ($pl, $name, $params) = @_;
…		…
934	cf::override;	1176	cf::override;
935	},	1177	},
936	on_extcmd => sub {	1178	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1179	my ($pl, $buf) = @_;
938		1180
939	my $msg = eval { from_json $buf };	1181	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1182
941	if (ref $msg) {	1183	if (ref $msg) {
		1184	my ($type, $reply, @payload) =
		1185	"ARRAY" eq ref $msg
		1186	? @$msg
		1187	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1188
		1189	my @reply;
		1190
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1193	}
		1194
		1195	$pl->ext_reply ($reply, @reply)
		1196	if $reply;
		1197
947	} else {	1198	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1199	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1200	}
950		1201
951	cf::override;	1202	cf::override;
952	},	1203	},
953	);	1204	);
954		1205
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1206	sub load_extensions {
		1207	cf::sync_job {
		1208	my %todo;
		1209
		1210	for my $path (<$LIBDIR/*.ext>) {
		1211	next unless -r $path;
		1212
		1213	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1214	my $base = $1;
		1215	my $pkg = $1;
		1216	$pkg =~ s/[^[:word:]]/_/g;
		1217	$pkg = "ext::$pkg";
		1218
		1219	open my $fh, "<:utf8", $path
		1220	or die "$path: $!";
		1221
		1222	my $source = do { local $/; <$fh> };
		1223
		1224	my %ext = (
		1225	path => $path,
		1226	base => $base,
		1227	pkg => $pkg,
		1228	);
		1229
		1230	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1231	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1232
		1233	$ext{source} =
		1234	"package $pkg; use strict; use utf8;\n"
		1235	. "#line 1 \"$path\"\n{\n"
		1236	. $source
		1237	. "\n};\n1";
		1238
		1239	$todo{$base} = \%ext;
		1240	}
		1241
		1242	my %done;
		1243	while (%todo) {
		1244	my $progress;
		1245
		1246	while (my ($k, $v) = each %todo) {
		1247	for (split /,\s*/, $v->{meta}{depends}) {
		1248	goto skip
		1249	unless exists $done{$_};
		1250	}
		1251
		1252	warn "... loading '$k' into '$v->{pkg}'\n";
		1253
		1254	unless (eval $v->{source}) {
		1255	my $msg = $@ ? "$v->{path}: $@\n"
		1256	: "$v->{base}: extension inactive.\n";
		1257
		1258	if (exists $v->{meta}{mandatory}) {
		1259	warn $msg;
		1260	warn "mandatory extension failed to load, exiting.\n";
		1261	exit 1;
		1262	}
		1263
		1264	warn $msg;
		1265	}
		1266
		1267	$done{$k} = delete $todo{$k};
		1268	push @EXTS, $v->{pkg};
		1269	$progress = 1;
		1270	}
		1271
		1272	skip:
		1273	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1274	unless $progress;
		1275	}
		1276	};
		1277	}
		1278
		1279	#############################################################################
		1280
		1281	=back
		1282
		1283	=head2 CORE EXTENSIONS
		1284
		1285	Functions and methods that extend core crossfire objects.
		1286
		1287	=cut
		1288
		1289	package cf::player;
		1290
		1291	use Coro::AIO;
		1292
		1293	=head3 cf::player
		1294
		1295	=over 4
		1296
		1297	=item cf::player::num_playing
		1298
		1299	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1300
		1301	=cut
		1302
		1303	sub num_playing {
		1304	scalar grep
		1305	$_->ob->map
		1306	&& !$_->hidden
		1307	&& !$_->ob->flag (cf::FLAG_WIZ),
		1308	cf::player::list
		1309	}
		1310
		1311	=item cf::player::find $login
		1312
		1313	Returns the given player object, loading it if necessary (might block).
		1314
		1315	=cut
		1316
		1317	sub playerdir($) {
		1318	"$PLAYERDIR/"
		1319	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1320	}
		1321
		1322	sub path($) {
		1323	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1324
		1325	(playerdir $login) . "/playerdata"
		1326	}
		1327
		1328	sub find_active($) {
		1329	$cf::PLAYER{$_[0]}
		1330	and $cf::PLAYER{$_[0]}->active
		1331	and $cf::PLAYER{$_[0]}
		1332	}
		1333
		1334	sub exists($) {
		1335	my ($login) = @_;
		1336
		1337	$cf::PLAYER{$login}
		1338	or cf::sync_job { !aio_stat path $login }
		1339	}
		1340
		1341	sub find($) {
		1342	return $cf::PLAYER{$_[0]} || do {
		1343	my $login = $_[0];
		1344
		1345	my $guard = cf::lock_acquire "user_find:$login";
		1346
		1347	$cf::PLAYER{$_[0]} || do {
		1348	# rename old playerfiles to new ones
		1349	#TODO: remove when no longer required
		1350	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1351	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1352	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1353	aio_unlink +(playerdir $login) . "/$login.pl";
		1354
		1355	my $f = new_from_file cf::object::thawer path $login
		1356	or return;
		1357
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
		1362	$cf::PLAYER{$login} = $pl
		1363	}
		1364	}
		1365	}
		1366
		1367	sub save($) {
		1368	my ($pl) = @_;
		1369
		1370	return if $pl->{deny_save};
		1371
		1372	my $path = path $pl;
		1373	my $guard = cf::lock_acquire "user_save:$path";
		1374
		1375	return if $pl->{deny_save};
		1376
		1377	aio_mkdir playerdir $pl, 0770;
		1378	$pl->{last_save} = $cf::RUNTIME;
		1379
		1380	$pl->save_pl ($path);
		1381	cf::cede_to_tick;
		1382	}
		1383
		1384	sub new($) {
		1385	my ($login) = @_;
		1386
		1387	my $self = create;
		1388
		1389	$self->ob->name ($login);
		1390	$self->{deny_save} = 1;
		1391
		1392	$cf::PLAYER{$login} = $self;
		1393
		1394	$self
		1395	}
		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
		1405	}
		1406
		1407	=item $pl->quit_character
		1408
		1409	Nukes the player without looking back. If logged in, the connection will
		1410	be destroyed. May block for a long time.
		1411
		1412	=cut
		1413
		1414	sub quit_character {
		1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
		1418
		1419	$pl->{deny_save} = 1;
		1420	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1421
		1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1423	$pl->deactivate;
		1424	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1425	$pl->ns->destroy if $pl->ns;
		1426
		1427	my $path = playerdir $pl;
		1428	my $temp = "$path~$cf::RUNTIME~deleting~";
		1429	aio_rename $path, $temp;
		1430	delete $cf::PLAYER{$pl->ob->name};
		1431	$pl->destroy;
		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
		1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
		1453	}
		1454
		1455	=item cf::player::list_logins
		1456
		1457	Returns am arrayref of all valid playernames in the system, can take a
		1458	while and may block, so not sync_job-capable, ever.
		1459
		1460	=cut
		1461
		1462	sub list_logins {
		1463	my $dirs = aio_readdir $PLAYERDIR
		1464	or return [];
		1465
		1466	my @logins;
		1467
		1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
		1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1474	aio_read $fh, 0, 512, my $buf, 0 or next;
		1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
		1477
		1478	utf8::decode $login;
		1479	push @logins, $login;
		1480	}
		1481
		1482	\@logins
		1483	}
		1484
		1485	=item $player->maps
		1486
		1487	Returns an arrayref of map paths that are private for this
		1488	player. May block.
		1489
		1490	=cut
		1491
		1492	sub maps($) {
		1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
		1496
		1497	my $files = aio_readdir playerdir $pl
		1498	or return;
		1499
		1500	my @paths;
		1501
		1502	for (@$files) {
		1503	utf8::decode $_;
		1504	next if /\.(?:pl|pst)$/;
		1505	next unless /^$PATH_SEP/o;
		1506
		1507	push @paths, cf::map::normalise "~$pl/$_";
		1508	}
		1509
		1510	\@paths
		1511	}
		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
		1564	=item $player->ext_reply ($msgid, @msg)
		1565
		1566	Sends an ext reply to the player.
		1567
		1568	=cut
		1569
		1570	sub ext_reply($$@) {
		1571	my ($self, $id, @msg) = @_;
		1572
		1573	$self->ns->ext_reply ($id, @msg)
		1574	}
		1575
		1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		1583	my ($self, $type, @msg) = @_;
		1584
		1585	$self->ns->ext_msg ($type, @msg);
		1586	}
		1587
		1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
962	my ($path) = @_;	1603	my ($path) = @_;
963		1604
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1605	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1606
970	warn "loading '$path' into '$pkg'\n";	1607	for my $region (list) {
971		1608	if ($region->{match} && $path =~ $region->{match}) {
972	open my $fh, "<:utf8", $path	1609	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1610	if $region->specificity > $specificity;
974		1611	}
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	1612	}
1004		1613
1005	# remove commands	1614	$match
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}
1030
1031	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;
1034	eval {
1035	load_extension $ext;
1036	1
1037	} or warn "$ext not loaded: $@";
1038	}
1039	}
1040
1041	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078
1079	=head2 CORE EXTENSIONS
1080
1081	Functions and methods that extend core crossfire objects.
1082
1083	=head3 cf::player
1084
1085	=over 4
1086
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut
1092
1093	sub cf::player::exists($) {
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099
1100	Sends an ext reply to the player.
1101
1102	=cut
1103
1104	sub cf::player::ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;
1106
1107	$msg{msgid} = $id;
1108
1109	$self->send ("ext " . to_json \%msg);
1110	}	1615	}
1111		1616
1112	=back	1617	=back
1113
1114		1618
1115	=head3 cf::map	1619	=head3 cf::map
1116		1620
1117	=over 4	1621	=over 4
1118		1622
…		…
1121	package cf::map;	1625	package cf::map;
1122		1626
1123	use Fcntl;	1627	use Fcntl;
1124	use Coro::AIO;	1628	use Coro::AIO;
1125		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1126	our $MAX_RESET = 3600;	1634	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1635	our $DEFAULT_RESET = 3000;
1128		1636
1129	sub generate_random_map {	1637	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1640	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1649	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1651	(cf::region::find $rmp->{region}), $rmp->{custom}
		1652	)
		1653	}
		1654
		1655	=item cf::map->register ($regex, $prio)
		1656
		1657	Register a handler for the map path matching the given regex at the
		1658	givne priority (higher is better, built-in handlers have priority 0, the
		1659	default).
		1660
		1661	=cut
		1662
		1663	sub register {
		1664	my (undef, $regex, $prio) = @_;
		1665	my $pkg = caller;
		1666
		1667	no strict;
		1668	push @{"$pkg\::ISA"}, __PACKAGE__;
		1669
		1670	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1671	}
		1672
		1673	# also paths starting with '/'
		1674	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1675
		1676	sub thawer_merge {
		1677	my ($self, $merge) = @_;
		1678
		1679	# we have to keep some variables in memory intact
		1680	local $self->{path};
		1681	local $self->{load_path};
		1682
		1683	$self->SUPER::thawer_merge ($merge);
		1684	}
		1685
		1686	sub normalise {
		1687	my ($path, $base) = @_;
		1688
		1689	$path = "$path"; # make sure its a string
		1690
		1691	$path =~ s/\.map$//;
		1692
		1693	# map plan:
		1694	#
		1695	# /! non-realised random map exit (special hack!)
		1696	# {... are special paths that are not being touched
		1697	# ?xxx/... are special absolute paths
		1698	# ?random/... random maps
		1699	# /... normal maps
		1700	# ~user/... per-player map of a specific user
		1701
		1702	$path =~ s/$PATH_SEP/\//go;
		1703
		1704	# treat it as relative path if it starts with
		1705	# something that looks reasonable
		1706	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1707	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1708
		1709	$base =~ s{[^/]+/?$}{};
		1710	$path = "$base/$path";
		1711	}
		1712
		1713	for ($path) {
		1714	redo if s{//}{/};
		1715	redo if s{/\.?/}{/};
		1716	redo if s{/[^/]+/\.\./}{/};
		1717	}
		1718
		1719	$path
		1720	}
		1721
		1722	sub new_from_path {
		1723	my (undef, $path, $base) = @_;
		1724
		1725	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1726
		1727	$path = normalise $path, $base;
		1728
		1729	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1730	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1731	my $self = bless cf::map::new, $pkg;
		1732	$self->{path} = $path; $self->path ($path);
		1733	$self->init; # pass $1 etc.
		1734	return $self;
		1735	}
		1736	}
		1737
		1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1739	()
		1740	}
		1741
		1742	sub init {
		1743	my ($self) = @_;
		1744
		1745	$self
		1746	}
		1747
		1748	sub as_string {
		1749	my ($self) = @_;
		1750
		1751	"$self->{path}"
		1752	}
		1753
		1754	# the displayed name, this is a one way mapping
		1755	sub visible_name {
		1756	&as_string
		1757	}
		1758
		1759	# the original (read-only) location
		1760	sub load_path {
		1761	my ($self) = @_;
		1762
		1763	"$MAPDIR/$self->{path}.map"
		1764	}
		1765
		1766	# the temporary/swap location
		1767	sub save_path {
		1768	my ($self) = @_;
		1769
		1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1771	"$TMPDIR/$path.map"
		1772	}
		1773
		1774	# the unique path, undef == no special unique path
		1775	sub uniq_path {
		1776	my ($self) = @_;
		1777
		1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1779	"$UNIQUEDIR/$path"
1146	}	1780	}
1147		1781
1148	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1149	# all maps in C++...	1783	# all maps in C++...
1150	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1152		1786
1153	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1155	}	1789	}
1156		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
		1799	sub unlink_save {
		1800	my ($self) = @_;
		1801
		1802	utf8::encode (my $save = $self->save_path);
		1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1805	}
		1806
1157	sub try_load_header($) {	1807	sub load_header_from($) {
1158	my ($path) = @_;	1808	my ($self, $path) = @_;
1159		1809
1160	utf8::encode $path;	1810	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1162	or return;	1812	or return;
1163		1813
1164	my $map = cf::map::new	1814	$self->_load_header ($f)
1165	or return;	1815	or return;
1166		1816
1167	# for better error messages only, will be overwritten	1817	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	1818	$f->resolve_delayed_derefs;
1169		1819
1170	$map->load_header ($path)	1820	$self->{load_path} = $path;
		1821
		1822	1
		1823	}
		1824
		1825	sub load_header_orig {
		1826	my ($self) = @_;
		1827
		1828	$self->load_header_from ($self->load_path)
		1829	}
		1830
		1831	sub load_header_temp {
		1832	my ($self) = @_;
		1833
		1834	$self->load_header_from ($self->save_path)
		1835	}
		1836
		1837	sub prepare_temp {
		1838	my ($self) = @_;
		1839
		1840	$self->last_access ((delete $self->{last_access})
		1841	|| $cf::RUNTIME); #d#
		1842	# safety
		1843	$self->{instantiate_time} = $cf::RUNTIME
		1844	if $self->{instantiate_time} > $cf::RUNTIME;
		1845	}
		1846
		1847	sub prepare_orig {
		1848	my ($self) = @_;
		1849
		1850	$self->{load_original} = 1;
		1851	$self->{instantiate_time} = $cf::RUNTIME;
		1852	$self->last_access ($cf::RUNTIME);
		1853	$self->instantiate;
		1854	}
		1855
		1856	sub load_header {
		1857	my ($self) = @_;
		1858
		1859	if ($self->load_header_temp) {
		1860	$self->prepare_temp;
		1861	} else {
		1862	$self->load_header_orig
1171	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1172		1866
1173	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
1174		1869
1175	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
		1872
		1873	1
1176	}	1874	}
1177		1875
1178	sub find;	1876	sub find;
1179	sub find {	1877	sub find {
1180	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1181		1879
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1187	cf::lock_wait "map_find:$key";	1883	cf::lock_wait "map_find:$path";
1188		1884
1189	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1191		1888
1192	# do it the slow way	1889	my $map = new_from_path cf::map $path
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1890	or return;
1211		1891
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1224		1893
1225	Coro::cede;	1894	$map->load_header
		1895	or return;
1226		1896
1227	if ($map->should_reset) {	1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1898	# doing this can freeze the server in a sync job, obviously
		1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1228	$map->reset;	1902	$map->reset;
1229	undef $guard;
1230	$map = find $path	1903	return find $path;
1231	or return;
1232	}	1904	}
1233		1905
1234	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1235	}	1907	}
1236	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1237		1912
1238	sub load {	1913	sub load {
1239	my ($self) = @_;	1914	my ($self) = @_;
1240		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
1241	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1921	my $guard = cf::lock_acquire "map_data:$path";
1243		1922
		1923	return unless $self->valid;
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1245		1925
1246	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1247		1927
1248	$self->alloc;	1928	$self->alloc;
1249	$self->load_objects ($self->{load_path}, 1)	1929
		1930	$self->pre_load;
		1931	cf::cede_to_tick;
		1932
		1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1250	or return;	1936	or return;
1251		1937
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1939	if delete $self->{load_original};
1254		1940
1255	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1942	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	1945	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1260	}	1949	}
1261	}	1950	}
1262		1951
1263	Coro::cede;	1952	$f->resolve_delayed_derefs;
1264		1953
		1954	cf::cede_to_tick;
1265	# now do the right thing for maps	1955	# now do the right thing for maps
1266	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	1958	unless $self->difficulty;
		1959	cf::cede_to_tick;
		1960
		1961	unless ($self->{deny_activate}) {
		1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
1278	$self->activate;	1968	$self->activate;
1279	}	1969	}
1280		1970
1281	Coro::cede;	1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
1282		1973
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1974	$self->in_memory (cf::MAP_IN_MEMORY);
		1975	}
		1976
		1977	$self->post_load;
		1978	}
		1979
		1980	sub customise_for {
		1981	my ($self, $ob) = @_;
		1982
		1983	return find "~" . $ob->name . "/" . $self->{path}
		1984	if $self->per_player;
		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
		1989	$self
		1990	}
		1991
		1992	# find and load all maps in the 3x3 area around a map
		1993	sub load_neighbours {
		1994	my ($map) = @_;
		1995
		1996	my @neigh; # diagonal neighbours
		1997
		1998	for (0 .. 3) {
		1999	my $neigh = $map->tile_path ($_)
		2000	or next;
		2001	$neigh = find $neigh, $map
		2002	or next;
		2003	$neigh->load;
		2004
		2005	push @neigh,
		2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2008	}
		2009
		2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
		2012	my $neigh = find $path, $origin
		2013	or next;
		2014	$neigh->load;
		2015	}
1284	}	2016	}
1285		2017
1286	sub find_sync {	2018	sub find_sync {
1287	my ($path, $origin) = @_;	2019	my ($path, $origin) = @_;
1288		2020
1289	cf::sync_job { cf::map::find $path, $origin }	2021	cf::sync_job { find $path, $origin }
1290	}	2022	}
1291		2023
1292	sub do_load_sync {	2024	sub do_load_sync {
1293	my ($map) = @_;	2025	my ($map) = @_;
1294		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1295	cf::sync_job { $map->load };	2030	cf::sync_job { $map->load };
		2031	}
		2032
		2033	our %MAP_PREFETCH;
		2034	our $MAP_PREFETCHER = undef;
		2035
		2036	sub find_async {
		2037	my ($path, $origin, $load) = @_;
		2038
		2039	$path = normalise $path, $origin && $origin->{path};
		2040
		2041	if (my $map = $cf::MAP{$path}) {
		2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2043	}
		2044
		2045	$MAP_PREFETCH{$path} |= $load;
		2046
		2047	$MAP_PREFETCHER ||= cf::async {
		2048	$Coro::current->{desc} = "map prefetcher";
		2049
		2050	while (%MAP_PREFETCH) {
		2051	while (my ($k, $v) = each %MAP_PREFETCH) {
		2052	if (my $map = find $k) {
		2053	$map->load if $v;
		2054	}
		2055
		2056	delete $MAP_PREFETCH{$k};
		2057	}
		2058	}
		2059	undef $MAP_PREFETCHER;
		2060	};
		2061	$MAP_PREFETCHER->prio (6);
		2062
		2063	()
1296	}	2064	}
1297		2065
1298	sub save {	2066	sub save {
1299	my ($self) = @_;	2067	my ($self) = @_;
1300		2068
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	2069	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2070
1303	$self->{last_save} = $cf::RUNTIME;	2071	$self->{last_save} = $cf::RUNTIME;
1304		2072
1305	return unless $self->dirty;	2073	return unless $self->dirty;
1306		2074
1307	my $save = $self->{path}->save_path; utf8::encode $save;	2075	my $save = $self->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2076	my $uniq = $self->uniq_path; utf8::encode $uniq;
1309		2077
1310	$self->{load_path} = $save;	2078	$self->{load_path} = $save;
1311		2079
1312	return if $self->{deny_save};	2080	return if $self->{deny_save};
1313		2081
1314	local $self->{last_access} = $self->last_access;#d#	2082	local $self->{last_access} = $self->last_access;#d#
1315		2083
		2084	cf::async {
		2085	$Coro::current->{desc} = "map player save";
		2086	$_->contr->save for $self->players;
		2087	};
		2088
1316	if ($uniq) {	2089	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	2091	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	2092	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2093	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	2094	}
1322	}	2095	}
1323		2096
1324	sub swap_out {	2097	sub swap_out {
1325	my ($self) = @_;	2098	my ($self) = @_;
1326		2099
1327	# save first because save cedes	2100	# save first because save cedes
1328	$self->save;	2101	$self->save;
1329		2102
1330	my $lock = cf::lock_acquire "map_data:" . $self->path;	2103	my $lock = cf::lock_acquire "map_data:$self->{path}";
1331		2104
1332	return if $self->players;	2105	return if $self->players;
1333	return if $self->in_memory != cf::MAP_IN_MEMORY;	2106	return if $self->in_memory != cf::MAP_IN_MEMORY;
1334	return if $self->{deny_save};	2107	return if $self->{deny_save};
1335		2108
		2109	$self->in_memory (cf::MAP_SWAPPED);
		2110
		2111	$self->deactivate;
		2112	$_->clear_links_to ($self) for values %cf::MAP;
1336	$self->clear;	2113	$self->clear;
1337	$self->in_memory (cf::MAP_SWAPPED);
1338	}	2114	}
1339		2115
1340	sub reset_at {	2116	sub reset_at {
1341	my ($self) = @_;	2117	my ($self) = @_;
1342		2118
1343	# TODO: safety, remove and allow resettable per-player maps	2119	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};
1345	return 1e99 if $self->{deny_reset};	2120	return 1e99 if $self->{deny_reset};
1346		2121
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2122	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2123	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		2124
…		…
1354	my ($self) = @_;	2129	my ($self) = @_;
1355		2130
1356	$self->reset_at <= $cf::RUNTIME	2131	$self->reset_at <= $cf::RUNTIME
1357	}	2132	}
1358		2133
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	2134	sub reset {
1381	my ($self) = @_;	2135	my ($self) = @_;
1382		2136
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	2137	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		2138
1385	return if $self->players;	2139	return if $self->players;
1386	return if $self->{path}{user_rel};#d#
1387		2140
1388	warn "resetting map ", $self->path;#d#	2141	warn "resetting map ", $self->path;
		2142
		2143	$self->in_memory (cf::MAP_SWAPPED);
		2144
		2145	# need to save uniques path
		2146	unless ($self->{deny_save}) {
		2147	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2148
		2149	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2150	if $uniq;
		2151	}
1389		2152
1390	delete $cf::MAP{$self->path};	2153	delete $cf::MAP{$self->path};
1391		2154
		2155	$self->deactivate;
1392	$_->clear_links_to ($self) for values %cf::MAP;	2156	$_->clear_links_to ($self) for values %cf::MAP;
		2157	$self->clear;
1393		2158
1394	$self->unlink_save;	2159	$self->unlink_save;
1395	$self->destroy;	2160	$self->destroy;
1396	}	2161	}
1397		2162
1398	my $nuke_counter = "aaaa";	2163	my $nuke_counter = "aaaa";
1399		2164
1400	sub nuke {	2165	sub nuke {
1401	my ($self) = @_;	2166	my ($self) = @_;
1402		2167
		2168	{
		2169	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2170
		2171	delete $cf::MAP{$self->path};
		2172
		2173	$self->unlink_save;
		2174
		2175	bless $self, "cf::map";
		2176	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	2177	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	2178	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	2179	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2180
		2181	$cf::MAP{$self->path} = $self;
		2182	}
		2183
1406	$self->reset; # polite request, might not happen	2184	$self->reset; # polite request, might not happen
1407	}	2185	}
1408		2186
1409	sub customise_for {	2187	=item $maps = cf::map::tmp_maps
1410	my ($map, $ob) = @_;
1411		2188
1412	if ($map->per_player) {	2189	Returns an arrayref with all map paths of currently instantiated and saved
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2190	maps. May block.
		2191
		2192	=cut
		2193
		2194	sub tmp_maps() {
1414	}	2195	[
1415		2196	map {
1416	$map	2197	utf8::decode $_;
		2198	/\.map$/
		2199	? normalise $_
		2200	: ()
		2201	} @{ aio_readdir $TMPDIR or [] }
		2202	]
1417	}	2203	}
1418		2204
1419	sub emergency_save {	2205	=item $maps = cf::map::random_maps
1420	my $freeze_guard = cf::freeze_mainloop;
1421		2206
1422	warn "enter emergency map save\n";	2207	Returns an arrayref with all map paths of currently instantiated and saved
		2208	random maps. May block.
1423		2209
1424	cf::sync_job {	2210	=cut
1425	warn "begin emergency map save\n";
1426	$_->save for values %cf::MAP;
1427	};
1428		2211
1429	warn "end emergency map save\n";	2212	sub random_maps() {
		2213	[
		2214	map {
		2215	utf8::decode $_;
		2216	/\.map$/
		2217	? normalise "?random/$_"
		2218	: ()
		2219	} @{ aio_readdir $RANDOMDIR or [] }
		2220	]
		2221	}
		2222
		2223	=item cf::map::unique_maps
		2224
		2225	Returns an arrayref of paths of all shared maps that have
		2226	instantiated unique items. May block.
		2227
		2228	=cut
		2229
		2230	sub unique_maps() {
		2231	[
		2232	map {
		2233	utf8::decode $_;
		2234	/\.map$/
		2235	? normalise $_
		2236	: ()
		2237	} @{ aio_readdir $UNIQUEDIR or [] }
		2238	]
1430	}	2239	}
1431		2240
1432	package cf;	2241	package cf;
1433		2242
1434	=back	2243	=back
1435		2244
		2245	=head3 cf::object
		2246
		2247	=cut
		2248
		2249	package cf::object;
		2250
		2251	=over 4
		2252
		2253	=item $ob->inv_recursive
		2254
		2255	Returns the inventory of the object _and_ their inventories, recursively.
		2256
		2257	=cut
		2258
		2259	sub inv_recursive_;
		2260	sub inv_recursive_ {
		2261	map { $_, inv_recursive_ $_->inv } @_
		2262	}
		2263
		2264	sub inv_recursive {
		2265	inv_recursive_ inv $_[0]
		2266	}
		2267
		2268	=item $ref = $ob->ref
		2269
		2270	creates and returns a persistent reference to an objetc that can be stored as a string.
		2271
		2272	=item $ob = cf::object::deref ($refstring)
		2273
		2274	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2275	even if the object actually exists. May block.
		2276
		2277	=cut
		2278
		2279	sub deref {
		2280	my ($ref) = @_;
		2281
		2282	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
		2294	}
		2295
		2296	package cf;
		2297
		2298	=back
1436		2299
1437	=head3 cf::object::player	2300	=head3 cf::object::player
1438		2301
1439	=over 4	2302	=over 4
1440		2303
…		…
1454		2317
1455	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1456		2319
1457	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1458	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1459	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
1460	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1461	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1462	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
1463	}	2345	}
1464		2346
1465	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1466		2348
1467	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1480		2362
1481	=item $player_object->enter_link	2363	=item $player_object->enter_link
1482		2364
1483	Freezes the player and moves him/her to a special map (C<{link}>).	2365	Freezes the player and moves him/her to a special map (C<{link}>).
1484		2366
1485	The player should be reaosnably safe there for short amounts of time. You	2367	The player should be reasonably safe there for short amounts of time. You
1486	I<MUST> call C<leave_link> as soon as possible, though.	2368	I<MUST> call C<leave_link> as soon as possible, though.
1487		2369
		2370	Will never block.
		2371
1488	=item $player_object->leave_link ($map, $x, $y)	2372	=item $player_object->leave_link ($map, $x, $y)
1489		2373
1490	Moves the player out of the specila link map onto the given map. If the	2374	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	2375	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	2376	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	2377	fails, to the emergency map position.
1494		2378
1495	Might block.	2379	Might block.
1496		2380
1497	=cut	2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($LINK_MAP) {
		2385	$LINK_MAP = cf::map::find "{link}"
		2386	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2387	$LINK_MAP->load;
		2388	}
		2389
		2390	$LINK_MAP
		2391	}
1498		2392
1499	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1500	my ($self) = @_;	2394	my ($self) = @_;
1501		2395
1502	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1503		2397
1504	return if $self->map == $LINK_MAP;	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		2399
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1508		2402
1509	$self->enter_map ($LINK_MAP, 20, 20);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1510	}	2404	}
1511		2405
1512	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1514		2410
1515	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1516		2412
1517	unless ($map) {	2413	unless ($map) {
1518	# restore original map position	2414	# restore original map position
…		…
1532	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1535		2431
1536	$map->load;	2432	$map->load;
		2433	$map->load_neighbours;
1537		2434
		2435	return unless $self->contr->active;
1538	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1539	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1540	}	2440	}
1541		2441
1542	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1543	on_logout => sub {
1544	my ($pl) = @_;
1545		2443
1546	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1547	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1548	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1549	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1550	};	2448	be called at the end of this process.
1551	}
1552	},
1553	on_login => sub {
1554	my ($pl) = @_;
1555		2449
1556	# try to abort aborted map switching on player login :)
1557	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;
1560	cf::async {
1561	# we need this sleep as the login has a concurrent enter_exit running
1562	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;
1565	};
1566	}
1567	},
1568	);
1569
1570	=item $player_object->goto ($path, $x, $y)
1571
1572	=cut	2450	=cut
		2451
		2452	our $GOTOGEN;
1573		2453
1574	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1575	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
		2456
		2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1576		2459
1577	$self->enter_link;	2460	$self->enter_link;
1578		2461
1579	(cf::async {	2462	(async {
1580	$path = new cf::path $path;	2463	$Coro::current->{desc} = "player::goto $path $x $y";
1581		2464
1582	my $map = cf::map::find $path->as_string;	2465	# *tag paths override both path and x|y
		2466	if ($path =~ /^\*(.*)$/) {
		2467	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2468	my $ob = $obs[rand @obs];
		2469
		2470	# see if we actually can go there
		2471	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2472	$ob = $obs[rand @obs];
		2473	} else {
		2474	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2475	}
		2476	# else put us there anyways for now #d#
		2477
		2478	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2479	} else {
		2480	($path, $x, $y) = (undef, undef, undef);
		2481	}
		2482	}
		2483
		2484	my $map = eval {
		2485	my $map = defined $path ? cf::map::find $path : undef;
		2486
		2487	if ($map) {
1583	$map = $map->customise_for ($self) if $map;	2488	$map = $map->customise_for ($self);
1584		2489	$map = $check->($map) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	2490	} else {
1586	# if $map;
1587
1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2491	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2492	}
1589		2493
		2494	$map
		2495	};
		2496
		2497	if ($@) {
		2498	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2499	LOG llevError | logBacktrace, Carp::longmess $@;
		2500	}
		2501
		2502	if ($gen == $self->{_goto_generation}) {
		2503	delete $self->{_goto_generation};
1590	$self->leave_link ($map, $x, $y);	2504	$self->leave_link ($map, $x, $y);
		2505	}
		2506
		2507	$done->() if $done;
1591	})->prio (1);	2508	})->prio (1);
1592	}	2509	}
1593		2510
1594	=item $player_object->enter_exit ($exit_object)	2511	=item $player_object->enter_exit ($exit_object)
1595		2512
…		…
1597		2514
1598	sub parse_random_map_params {	2515	sub parse_random_map_params {
1599	my ($spec) = @_;	2516	my ($spec) = @_;
1600		2517
1601	my $rmp = { # defaults	2518	my $rmp = { # defaults
1602	xsize => 10,	2519	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2520	ysize => (cf::rndm 15, 40),
		2521	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2522	#layout => string,
1604	};	2523	};
1605		2524
1606	for (split /\n/, $spec) {	2525	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2526	my ($k, $v) = split /\s+/, $_, 2;
1608		2527
…		…
1612	$rmp	2531	$rmp
1613	}	2532	}
1614		2533
1615	sub prepare_random_map {	2534	sub prepare_random_map {
1616	my ($exit) = @_;	2535	my ($exit) = @_;
		2536
		2537	my $guard = cf::lock_acquire "exit_prepare:$exit";
1617		2538
1618	# all this does is basically replace the /! path by	2539	# all this does is basically replace the /! path by
1619	# a new random map path (?random/...) with a seed	2540	# a new random map path (?random/...) with a seed
1620	# that depends on the exit object	2541	# that depends on the exit object
1621		2542
1622	my $rmp = parse_random_map_params $exit->msg;	2543	my $rmp = parse_random_map_params $exit->msg;
1623		2544
1624	if ($exit->map) {	2545	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2546	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2547	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2548	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2549	$rmp->{origin_y} = $exit->y;
1629	}	2550	}
1630		2551
1631	$rmp->{random_seed} ||= $exit->random_seed;	2552	$rmp->{random_seed} ||= $exit->random_seed;
1632		2553
1633	my $data = cf::to_json $rmp;	2554	my $data = cf::to_json $rmp;
1634	my $md5 = Digest::MD5::md5_hex $data;	2555	my $md5 = Digest::MD5::md5_hex $data;
		2556	my $meta = "$RANDOMDIR/$md5.meta";
1635		2557
1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2558	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1637	aio_write $fh, 0, (length $data), $data, 0;	2559	aio_write $fh, 0, (length $data), $data, 0;
		2560	undef $fh;
		2561	aio_rename "$meta~", $meta;
1638		2562
1639	$exit->slaying ("?random/$md5");	2563	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2564	$exit->msg (undef);
1641	}	2565	}
1642	}	2566	}
…		…
1644	sub cf::object::player::enter_exit {	2568	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2569	my ($self, $exit) = @_;
1646		2570
1647	return unless $self->type == cf::PLAYER;	2571	return unless $self->type == cf::PLAYER;
1648		2572
		2573	if ($exit->slaying eq "/!") {
		2574	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2575	# the problem is that $exit might not survive long enough
		2576	# so it needs to be done right now, right here
		2577	cf::sync_job { prepare_random_map $exit };
		2578	}
		2579
		2580	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2581	my $hp = $exit->stats->hp;
		2582	my $sp = $exit->stats->sp;
		2583
1649	$self->enter_link;	2584	$self->enter_link;
1650		2585
		2586	# if exit is damned, update players death & WoR home-position
		2587	$self->contr->savebed ($slaying, $hp, $sp)
		2588	if $exit->flag (FLAG_DAMNED);
		2589
1651	(cf::async {	2590	(async {
		2591	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2592
1652	$self->deactivate_recursive; # just to be sure	2593	$self->deactivate_recursive; # just to be sure
1653	unless (eval {	2594	unless (eval {
1654	prepare_random_map $exit	2595	$self->goto ($slaying, $hp, $sp);
1655	if $exit->slaying eq "/!";
1656
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1659		2596
1660	1;	2597	1;
1661	}) {	2598	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2599	$self->message ("Something went wrong deep within the crossfire server. "
1663	. "I'll try to bring you back to the map you were before. "	2600	. "I'll try to bring you back to the map you were before. "
1664	. "Please report this to the dungeon master",	2601	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2602	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2603
1667	warn "ERROR in enter_exit: $@";	2604	warn "ERROR in enter_exit: $@";
1668	$self->leave_link;	2605	$self->leave_link;
1669	}	2606	}
1670	})->prio (1);	2607	})->prio (1);
…		…
1683		2620
1684	sub cf::client::send_drawinfo {	2621	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2622	my ($self, $text, $flags) = @_;
1686		2623
1687	utf8::encode $text;	2624	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2625	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2626	}
1690		2627
		2628	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2629
		2630	Send a drawinfo or msg packet to the client, formatting the msg for the
		2631	client if neccessary. C<$type> should be a string identifying the type of
		2632	the message, with C<log> being the default. If C<$color> is negative, suppress
		2633	the message unless the client supports the msg packet.
		2634
		2635	=cut
		2636
		2637	our %CHANNEL = (
		2638	"c/identify" => {
		2639	id => "infobox",
		2640	title => "Identify",
		2641	reply => undef,
		2642	tooltip => "Items recently identified",
		2643	},
		2644	"c/examine" => {
		2645	id => "infobox",
		2646	title => "Examine",
		2647	reply => undef,
		2648	tooltip => "Signs and other items you examined",
		2649	},
		2650	"c/lookat" => {
		2651	id => "infobox",
		2652	title => "Look",
		2653	reply => undef,
		2654	tooltip => "What you saw there",
		2655	},
		2656	);
		2657
		2658	sub cf::client::send_msg {
		2659	my ($self, $channel, $msg, $color, @extra) = @_;
		2660
		2661	$msg = $self->pl->expand_cfpod ($msg);
		2662
		2663	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2664
		2665	# check predefined channels, for the benefit of C
		2666	if ($CHANNEL{$channel}) {
		2667	$channel = $CHANNEL{$channel};
		2668
		2669	$self->ext_msg (channel_info => $channel)
		2670	if $self->can_msg;
		2671
		2672	$channel = $channel->{id};
		2673
		2674	} elsif (ref $channel) {
		2675	# send meta info to client, if not yet sent
		2676	unless (exists $self->{channel}{$channel->{id}}) {
		2677	$self->{channel}{$channel->{id}} = $channel;
		2678	$self->ext_msg (channel_info => $channel)
		2679	if $self->can_msg;
		2680	}
		2681
		2682	$channel = $channel->{id};
		2683	}
		2684
		2685	return unless @extra || length $msg;
		2686
		2687	if ($self->can_msg) {
		2688	# default colour, mask it out
		2689	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2690	if $color & cf::NDI_DEF;
		2691
		2692	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2693	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2694	} else {
		2695	if ($color >= 0) {
		2696	# replace some tags by gcfclient-compatible ones
		2697	for ($msg) {
		2698	1 while
		2699	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2700	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2701	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2702	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2703	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2704	}
		2705
		2706	$color &= cf::NDI_COLOR_MASK;
		2707
		2708	utf8::encode $msg;
		2709
		2710	if (0 && $msg =~ /\[/) {
		2711	# COMMAND/INFO
		2712	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2713	} else {
		2714	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2715	$self->send_packet ("drawinfo $color $msg")
		2716	}
		2717	}
		2718	}
		2719	}
		2720
		2721	=item $client->ext_msg ($type, @msg)
		2722
		2723	Sends an ext event to the client.
		2724
		2725	=cut
		2726
		2727	sub cf::client::ext_msg($$@) {
		2728	my ($self, $type, @msg) = @_;
		2729
		2730	if ($self->extcmd == 2) {
		2731	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2732	} elsif ($self->extcmd == 1) { # TODO: remove
		2733	push @msg, msgtype => "event_$type";
		2734	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2735	}
		2736	}
		2737
		2738	=item $client->ext_reply ($msgid, @msg)
		2739
		2740	Sends an ext reply to the client.
		2741
		2742	=cut
		2743
		2744	sub cf::client::ext_reply($$@) {
		2745	my ($self, $id, @msg) = @_;
		2746
		2747	if ($self->extcmd == 2) {
		2748	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2749	} elsif ($self->extcmd == 1) {
		2750	#TODO: version 1, remove
		2751	unshift @msg, msgtype => "reply", msgid => $id;
		2752	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2753	}
		2754	}
1691		2755
1692	=item $success = $client->query ($flags, "text", \&cb)	2756	=item $success = $client->query ($flags, "text", \&cb)
1693		2757
1694	Queues a query to the client, calling the given callback with	2758	Queues a query to the client, calling the given callback with
1695	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2759	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1696	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2760	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1697		2761
1698	Queries can fail, so check the return code. Or don't, as queries will become	2762	Queries can fail, so check the return code. Or don't, as queries will
1699	reliable at some point in the future.	2763	become reliable at some point in the future.
1700		2764
1701	=cut	2765	=cut
1702		2766
1703	sub cf::client::query {	2767	sub cf::client::query {
1704	my ($self, $flags, $text, $cb) = @_;	2768	my ($self, $flags, $text, $cb) = @_;
…		…
1712	utf8::encode $text;	2776	utf8::encode $text;
1713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2777	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1714		2778
1715	$self->send_packet ($self->{query_queue}[0][0])	2779	$self->send_packet ($self->{query_queue}[0][0])
1716	if @{ $self->{query_queue} } == 1;	2780	if @{ $self->{query_queue} } == 1;
		2781
		2782	1
1717	}	2783	}
1718		2784
1719	cf::client->attach (	2785	cf::client->attach (
		2786	on_connect => sub {
		2787	my ($ns) = @_;
		2788
		2789	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2790	},
1720	on_reply => sub {	2791	on_reply => sub {
1721	my ($ns, $msg) = @_;	2792	my ($ns, $msg) = @_;
1722		2793
1723	# this weird shuffling is so that direct followup queries	2794	# this weird shuffling is so that direct followup queries
1724	# get handled first	2795	# get handled first
1725	my $queue = delete $ns->{query_queue}	2796	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	2797	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		2798
1728	(shift @$queue)->[1]->($msg);	2799	(shift @$queue)->[1]->($msg);
		2800	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		2801
1730	push @{ $ns->{query_queue} }, @$queue;	2802	push @{ $ns->{query_queue} }, @$queue;
1731		2803
1732	if (@{ $ns->{query_queue} } == @$queue) {	2804	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	2805	if (@$queue) {
…		…
1735	} else {	2807	} else {
1736	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2808	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1737	}	2809	}
1738	}	2810	}
1739	},	2811	},
		2812	on_exticmd => sub {
		2813	my ($ns, $buf) = @_;
		2814
		2815	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2816
		2817	if (ref $msg) {
		2818	my ($type, $reply, @payload) =
		2819	"ARRAY" eq ref $msg
		2820	? @$msg
		2821	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2822
		2823	my @reply;
		2824
		2825	if (my $cb = $EXTICMD{$type}) {
		2826	@reply = $cb->($ns, @payload);
		2827	}
		2828
		2829	$ns->ext_reply ($reply, @reply)
		2830	if $reply;
		2831
		2832	} else {
		2833	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2834	}
		2835
		2836	cf::override;
		2837	},
1740	);	2838	);
1741		2839
1742	=item $client->coro (\&cb)	2840	=item $client->async (\&cb)
1743		2841
1744	Create a new coroutine, running the specified callback. The coroutine will	2842	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	2843	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	2844	or loss of connection).
1747		2845
1748	=cut	2846	=cut
1749		2847
1750	sub cf::client::coro {	2848	sub cf::client::async {
1751	my ($self, $cb) = @_;	2849	my ($self, $cb) = @_;
1752		2850
1753	my $coro = &cf::async ($cb);	2851	my $coro = &Coro::async ($cb);
1754		2852
1755	$coro->on_destroy (sub {	2853	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	2854	delete $self->{_coro}{$coro+0};
1757	});	2855	});
1758		2856
…		…
1785	our $safe = new Safe "safe";	2883	our $safe = new Safe "safe";
1786	our $safe_hole = new Safe::Hole;	2884	our $safe_hole = new Safe::Hole;
1787		2885
1788	$SIG{FPE} = 'IGNORE';	2886	$SIG{FPE} = 'IGNORE';
1789		2887
1790	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2888	$safe->permit_only (Opcode::opset qw(
		2889	:base_core :base_mem :base_orig :base_math
		2890	grepstart grepwhile mapstart mapwhile
		2891	sort time
		2892	));
1791		2893
1792	# here we export the classes and methods available to script code	2894	# here we export the classes and methods available to script code
1793		2895
1794	=pod	2896	=pod
1795		2897
1796	The following fucntions and emthods are available within a safe environment:	2898	The following functions and methods are available within a safe environment:
1797		2899
1798	cf::object contr pay_amount pay_player map	2900	cf::object
		2901	contr pay_amount pay_player map x y force_find force_add
		2902	insert remove name archname title slaying race decrease_ob_nr
		2903
1799	cf::object::player player	2904	cf::object::player
1800	cf::player peaceful	2905	player
1801	cf::map trigger	2906
		2907	cf::player
		2908	peaceful
		2909
		2910	cf::map
		2911	trigger
1802		2912
1803	=cut	2913	=cut
1804		2914
1805	for (	2915	for (
1806	["cf::object" => qw(contr pay_amount pay_player map)],	2916	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2917	insert remove inv name archname title slaying race
		2918	decrease_ob_nr)],
1807	["cf::object::player" => qw(player)],	2919	["cf::object::player" => qw(player)],
1808	["cf::player" => qw(peaceful)],	2920	["cf::player" => qw(peaceful)],
1809	["cf::map" => qw(trigger)],	2921	["cf::map" => qw(trigger)],
1810	) {	2922	) {
1811	no strict 'refs';	2923	no strict 'refs';
…		…
1882	=back	2994	=back
1883		2995
1884	=cut	2996	=cut
1885		2997
1886	#############################################################################	2998	#############################################################################
		2999	# the server's init and main functions
1887		3000
1888	=head2 EXTENSION DATABASE SUPPORT	3001	sub load_facedata($) {
		3002	my ($path) = @_;
1889		3003
1890	Crossfire maintains a very simple database for extension use. It can	3004	# HACK to clear player env face cache, we need some signal framework
1891	currently store anything that can be serialised using Storable, which	3005	# for this (global event?)
1892	excludes objects.	3006	%ext::player_env::MUSIC_FACE_CACHE = ();
1893		3007
1894	The parameter C<$family> should best start with the name of the extension	3008	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1895	using it, it should be unique.
1896		3009
1897	=over 4	3010	warn "loading facedata from $path\n";
1898		3011
1899	=item $hashref = cf::db_get $family	3012	my $facedata;
		3013	0 < aio_load $path, $facedata
		3014	or die "$path: $!";
1900		3015
1901	Return a hashref for use by the extension C<$family>, which can be	3016	$facedata = Coro::Storable::thaw $facedata;
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904		3017
1905	=item $value = cf::db_get $family => $key	3018	$facedata->{version} == 2
		3019	or cf::cleanup "$path: version mismatch, cannot proceed.";
1906		3020
1907	Returns a single value from the database	3021	# patch in the exptable
1908		3022	$facedata->{resource}{"res/exp_table"} = {
1909	=item cf::db_put $family => $hashref	3023	type => FT_RSRC,
1910		3024	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1911	Stores the given family hashref into the database. Updates are delayed, if
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_put $family => $key => $value
1915
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926
1927	=cut
1928
1929	our $DB;
1930
1931	{
1932	my $path = cf::localdir . "/database.pst";
1933
1934	sub db_load() {
1935	$DB = stat $path ? Storable::retrieve $path : { };
1936	}
1937
1938	my $pid;
1939
1940	sub db_save() {
1941	waitpid $pid, 0 if $pid;
1942	if (0 == ($pid = fork)) {
1943	$DB->{_meta}{version} = 1;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});	3025	};
		3026	cf::cede_to_tick;
1960		3027
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}	3028	{
		3029	my $faces = $facedata->{faceinfo};
1965		3030
1966	sub db_get($;$) {	3031	while (my ($face, $info) = each %$faces) {
1967	@_ >= 2	3032	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1968	? $DB->{$_[0]}{$_[1]}	3033	cf::face::set_visibility $idx, $info->{visibility};
1969	: ($DB->{$_[0]} ||= { })	3034	cf::face::set_magicmap $idx, $info->{magicmap};
1970	}	3035	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3036	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1971		3037
1972	sub db_put($$;$) {	3038	cf::cede_to_tick;
1973	if (@_ >= 3) {
1974	$DB->{$_[0]}{$_[1]} = $_[2];
1975	} else {
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980
1981	cf::global->attach (
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	3039	}
1986	);
1987	}
1988		3040
1989	#############################################################################	3041	while (my ($face, $info) = each %$faces) {
1990	# the server's main()	3042	next unless $info->{smooth};
		3043	my $idx = cf::face::find $face
		3044	or next;
		3045	if (my $smooth = cf::face::find $info->{smooth}) {
		3046	cf::face::set_smooth $idx, $smooth;
		3047	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3048	} else {
		3049	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3050	}
1991		3051
1992	sub cfg_load {	3052	cf::cede_to_tick;
		3053	}
		3054	}
		3055
		3056	{
		3057	my $anims = $facedata->{animinfo};
		3058
		3059	while (my ($anim, $info) = each %$anims) {
		3060	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3061	cf::cede_to_tick;
		3062	}
		3063
		3064	cf::anim::invalidate_all; # d'oh
		3065	}
		3066
		3067	{
		3068	# TODO: for gcfclient pleasure, we should give resources
		3069	# that gcfclient doesn't grok a >10000 face index.
		3070	my $res = $facedata->{resource};
		3071
		3072	my $soundconf = delete $res->{"res/sound.conf"};
		3073
		3074	while (my ($name, $info) = each %$res) {
		3075	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3076	my $data;
		3077
		3078	if ($info->{type} & 1) {
		3079	# prepend meta info
		3080
		3081	my $meta = $enc->encode ({
		3082	name => $name,
		3083	%{ $info->{meta} || {} },
		3084	});
		3085
		3086	$data = pack "(w/a*)*", $meta, $info->{data};
		3087	} else {
		3088	$data = $info->{data};
		3089	}
		3090
		3091	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3092	cf::face::set_type $idx, $info->{type};
		3093
		3094	cf::cede_to_tick;
		3095	}
		3096
		3097	if ($soundconf) {
		3098	$soundconf = $enc->decode (delete $soundconf->{data});
		3099
		3100	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3101	my $sound = $soundconf->{compat}[$_]
		3102	or next;
		3103
		3104	my $face = cf::face::find "sound/$sound->[1]";
		3105	cf::sound::set $sound->[0] => $face;
		3106	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3107	}
		3108
		3109	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3110	my $face = cf::face::find "sound/$v";
		3111	cf::sound::set $k => $face;
		3112	}
		3113	}
		3114	}
		3115
		3116	1
		3117	}
		3118
		3119	register_exticmd fx_want => sub {
		3120	my ($ns, $want) = @_;
		3121
		3122	while (my ($k, $v) = each %$want) {
		3123	$ns->fx_want ($k, $v);
		3124	}
		3125	};
		3126
		3127	sub reload_regions {
		3128	# HACK to clear player env face cache, we need some signal framework
		3129	# for this (global event?)
		3130	%ext::player_env::MUSIC_FACE_CACHE = ();
		3131
		3132	load_resource_file "$MAPDIR/regions"
		3133	or die "unable to load regions file\n";
		3134
		3135	for (cf::region::list) {
		3136	$_->{match} = qr/$_->{match}/
		3137	if exists $_->{match};
		3138	}
		3139	}
		3140
		3141	sub reload_facedata {
		3142	load_facedata "$DATADIR/facedata"
		3143	or die "unable to load facedata\n";
		3144	}
		3145
		3146	sub reload_archetypes {
		3147	load_resource_file "$DATADIR/archetypes"
		3148	or die "unable to load archetypes\n";
		3149	#d# NEED to laod twice to resolve forward references
		3150	# this really needs to be done in an extra post-pass
		3151	# (which needs to be synchronous, so solve it differently)
		3152	load_resource_file "$DATADIR/archetypes"
		3153	or die "unable to load archetypes\n";
		3154	}
		3155
		3156	sub reload_treasures {
		3157	load_resource_file "$DATADIR/treasures"
		3158	or die "unable to load treasurelists\n";
		3159	}
		3160
		3161	sub reload_resources {
		3162	warn "reloading resource files...\n";
		3163
		3164	reload_regions;
		3165	reload_facedata;
		3166	#reload_archetypes;#d#
		3167	reload_archetypes;
		3168	reload_treasures;
		3169
		3170	warn "finished reloading resource files\n";
		3171	}
		3172
		3173	sub init {
		3174	reload_resources;
		3175	}
		3176
		3177	sub reload_config {
1993	open my $fh, "<:utf8", cf::confdir . "/config"	3178	open my $fh, "<:utf8", "$CONFDIR/config"
1994	or return;	3179	or return;
1995		3180
1996	local $/;	3181	local $/;
1997	*CFG = YAML::Syck::Load <$fh>;	3182	*CFG = YAML::Syck::Load <$fh>;
1998		3183
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3184	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2000		3185
		3186	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3187	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3188
2001	if (exists $CFG{mlockall}) {	3189	if (exists $CFG{mlockall}) {
2002	eval {	3190	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	3191	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	3192	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	3193	};
2006	warn $@ if $@;	3194	warn $@ if $@;
2007	}	3195	}
2008	}	3196	}
2009		3197
2010	sub main {	3198	sub main {
2011	# we must not ever block the main coroutine	3199	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	3200	local $Coro::idle = sub {
2013	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2014	(Coro::unblock_sub {	3202	(async {
		3203	$Coro::current->{desc} = "IDLE BUG HANDLER";
2015	Event::one_event;	3204	Event::one_event;
2016	})->();	3205	})->prio (Coro::PRIO_MAX);
2017	};	3206	};
2018		3207
2019	cfg_load;	3208	reload_config;
2020	db_load;	3209	db_init;
2021	load_extensions;	3210	load_extensions;
		3211
		3212	$TICK_WATCHER->start;
2022	Event::loop;	3213	Event::loop;
2023	}	3214	}
2024		3215
2025	#############################################################################	3216	#############################################################################
2026	# initialisation	3217	# initialisation and cleanup
2027		3218
		3219	# install some emergency cleanup handlers
		3220	BEGIN {
		3221	for my $signal (qw(INT HUP TERM)) {
		3222	Event->signal (
		3223	reentrant => 0,
		3224	data => WF_AUTOCANCEL,
		3225	signal => $signal,
		3226	prio => 0,
		3227	cb => sub {
		3228	cf::cleanup "SIG$signal";
		3229	},
		3230	);
		3231	}
		3232	}
		3233
		3234	sub write_runtime {
		3235	my $runtime = "$LOCALDIR/runtime";
		3236
		3237	# first touch the runtime file to show we are still running:
		3238	# the fsync below can take a very very long time.
		3239
		3240	IO::AIO::aio_utime $runtime, undef, undef;
		3241
		3242	my $guard = cf::lock_acquire "write_runtime";
		3243
		3244	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3245	or return;
		3246
		3247	my $value = $cf::RUNTIME + 90 + 10;
		3248	# 10 is the runtime save interval, for a monotonic clock
		3249	# 60 allows for the watchdog to kill the server.
		3250
		3251	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3252	and return;
		3253
		3254	# always fsync - this file is important
		3255	aio_fsync $fh
		3256	and return;
		3257
		3258	# touch it again to show we are up-to-date
		3259	aio_utime $fh, undef, undef;
		3260
		3261	close $fh
		3262	or return;
		3263
		3264	aio_rename "$runtime~", $runtime
		3265	and return;
		3266
		3267	warn "runtime file written.\n";
		3268
		3269	1
		3270	}
		3271
		3272	sub emergency_save() {
		3273	my $freeze_guard = cf::freeze_mainloop;
		3274
		3275	warn "enter emergency perl save\n";
		3276
		3277	cf::sync_job {
		3278	# use a peculiar iteration method to avoid tripping on perl
		3279	# refcount bugs in for. also avoids problems with players
		3280	# and maps saved/destroyed asynchronously.
		3281	warn "begin emergency player save\n";
		3282	for my $login (keys %cf::PLAYER) {
		3283	my $pl = $cf::PLAYER{$login} or next;
		3284	$pl->valid or next;
		3285	$pl->save;
		3286	}
		3287	warn "end emergency player save\n";
		3288
		3289	warn "begin emergency map save\n";
		3290	for my $path (keys %cf::MAP) {
		3291	my $map = $cf::MAP{$path} or next;
		3292	$map->valid or next;
		3293	$map->save;
		3294	}
		3295	warn "end emergency map save\n";
		3296
		3297	warn "begin emergency database checkpoint\n";
		3298	BDB::db_env_txn_checkpoint $DB_ENV;
		3299	warn "end emergency database checkpoint\n";
		3300	};
		3301
		3302	warn "leave emergency perl save\n";
		3303	}
		3304
		3305	sub post_cleanup {
		3306	my ($make_core) = @_;
		3307
		3308	warn Carp::longmess "post_cleanup backtrace"
		3309	if $make_core;
		3310	}
		3311
2028	sub reload() {	3312	sub do_reload_perl() {
2029	# can/must only be called in main	3313	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	3314	if ($Coro::current != $Coro::main) {
2031	warn "can only reload from main coroutine\n";	3315	warn "can only reload from main coroutine";
2032	return;	3316	return;
2033	}	3317	}
2034		3318
2035	warn "reloading...";	3319	warn "reloading...";
2036		3320
2037	my $guard = freeze_mainloop;	3321	warn "entering sync_job";
		3322
		3323	cf::sync_job {
		3324	cf::write_runtime; # external watchdog should not bark
2038	cf::emergency_save;	3325	cf::emergency_save;
		3326	cf::write_runtime; # external watchdog should not bark
2039		3327
2040	eval {	3328	warn "syncing database to disk";
		3329	BDB::db_env_txn_checkpoint $DB_ENV;
		3330
2041	# if anything goes wrong in here, we should simply crash as we already saved	3331	# if anything goes wrong in here, we should simply crash as we already saved
2042		3332
2043	# cancel all watchers	3333	warn "cancelling all WF_AUTOCANCEL watchers";
2044	for (Event::all_watchers) {	3334	for (Event::all_watchers) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;	3335	$_->cancel if $_->data & WF_AUTOCANCEL;
2046	}	3336	}
2047		3337
		3338	warn "flushing outstanding aio requests";
		3339	for (;;) {
		3340	BDB::flush;
		3341	IO::AIO::flush;
		3342	Coro::cede;
		3343	last unless IO::AIO::nreqs || BDB::nreqs;
		3344	warn "iterate...";
		3345	}
		3346
		3347	++$RELOAD;
		3348
2048	# cancel all extension coros	3349	warn "cancelling all extension coros";
2049	$_->cancel for values %EXT_CORO;	3350	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	3351	%EXT_CORO = ();
2051		3352
2052	# unload all extensions	3353	warn "removing commands";
2053	for (@exts) {	3354	%COMMAND = ();
		3355
		3356	warn "removing ext/exti commands";
		3357	%EXTCMD = ();
		3358	%EXTICMD = ();
		3359
		3360	warn "unloading/nuking all extensions";
		3361	for my $pkg (@EXTS) {
2054	warn "unloading <$_>";	3362	warn "... unloading $pkg";
2055	unload_extension $_;	3363
		3364	if (my $cb = $pkg->can ("unload")) {
		3365	eval {
		3366	$cb->($pkg);
		3367	1
		3368	} or warn "$pkg unloaded, but with errors: $@";
2056	}	3369	}
2057		3370
		3371	warn "... nuking $pkg";
		3372	Symbol::delete_package $pkg;
		3373	}
		3374
2058	# unload all modules loaded from $LIBDIR	3375	warn "unloading all perl modules loaded from $LIBDIR";
2059	while (my ($k, $v) = each %INC) {	3376	while (my ($k, $v) = each %INC) {
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3377	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061		3378
2062	warn "removing <$k>";	3379	warn "... unloading $k";
2063	delete $INC{$k};	3380	delete $INC{$k};
2064		3381
2065	$k =~ s/\.pm$//;	3382	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;	3383	$k =~ s/\//::/g;
2067		3384
…		…
2070	}	3387	}
2071		3388
2072	Symbol::delete_package $k;	3389	Symbol::delete_package $k;
2073	}	3390	}
2074		3391
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	3392	warn "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	3393	Symbol::delete_package "safe::$_"
2081	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3394	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2082		3395
2083	# remove register_script_function callbacks
2084	# TODO
2085
2086	# unload cf.pm "a bit"	3396	warn "unloading cf.pm \"a bit\"";
2087	delete $INC{"cf.pm"};	3397	delete $INC{"cf.pm"};
		3398	delete $INC{"cf/pod.pm"};
2088		3399
2089	# don't, removes xs symbols, too,	3400	# don't, removes xs symbols, too,
2090	# and global variables created in xs	3401	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	3402	#Symbol::delete_package __PACKAGE__;
2092		3403
2093	# reload cf.pm	3404	warn "unload completed, starting to reload now";
		3405
2094	warn "reloading cf.pm";	3406	warn "reloading cf.pm";
2095	require cf;	3407	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3408	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2097		3409
2098	# load config and database again	3410	warn "loading config and database again";
2099	cf::cfg_load;	3411	cf::reload_config;
2100	cf::db_load;
2101		3412
2102	# load extensions
2103	warn "load extensions";	3413	warn "loading extensions";
2104	cf::load_extensions;	3414	cf::load_extensions;
2105		3415
2106	# reattach attachments to objects	3416	warn "reattaching attachments to objects/players";
2107	warn "reattach";	3417	_global_reattach; # objects, sockets
2108	_global_reattach;	3418	warn "reattaching attachments to maps";
2109	};	3419	reattach $_ for values %MAP;
		3420	warn "reattaching attachments to players";
		3421	reattach $_ for values %PLAYER;
2110		3422
2111	if ($@) {	3423	warn "leaving sync_job";
		3424
		3425	1
		3426	} or do {
2112	warn $@;	3427	warn $@;
2113	warn "error while reloading, exiting.";	3428	warn "error while reloading, exiting.";
2114	exit 1;	3429	exit 1;
2115	}	3430	};
2116		3431
2117	warn "reloaded successfully";	3432	warn "reloaded";
2118	};	3433	};
2119		3434
2120	#############################################################################	3435	our $RELOAD_WATCHER; # used only during reload
2121		3436
2122	unless ($LINK_MAP) {	3437	sub reload_perl() {
2123	$LINK_MAP = cf::map::new;	3438	# doing reload synchronously and two reloads happen back-to-back,
		3439	# coro crashes during coro_state_free->destroy here.
2124		3440
2125	$LINK_MAP->width (41);	3441	$RELOAD_WATCHER ||= Event->timer (
2126	$LINK_MAP->height (41);	3442	reentrant => 0,
2127	$LINK_MAP->alloc;
2128	$LINK_MAP->path ("{link}");
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,	3443	after => 0,
		3444	data => WF_AUTOCANCEL,
2135	cb => sub {	3445	cb => sub {
2136	$_[0]->w->cancel;	3446	do_reload_perl;
2137		3447	undef $RELOAD_WATCHER;
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});	3448	},
2156		3449	);
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	3450	}
2162
2163	register "<global>", __PACKAGE__;
2164		3451
2165	register_command "reload" => sub {	3452	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	3453	my ($who, $arg) = @_;
2167		3454
2168	if ($who->flag (FLAG_WIZ)) {	3455	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	3456	$who->message ("reloading server.");
		3457	async {
		3458	$Coro::current->{desc} = "perl_reload";
		3459	reload_perl;
		3460	};
2172	}	3461	}
2173	};	3462	};
2174		3463
2175	unshift @INC, $LIBDIR;	3464	unshift @INC, $LIBDIR;
		3465
		3466	my $bug_warning = 0;
		3467
		3468	our @WAIT_FOR_TICK;
		3469	our @WAIT_FOR_TICK_BEGIN;
		3470
		3471	sub wait_for_tick {
		3472	return unless $TICK_WATCHER->is_active;
		3473	return if $Coro::current == $Coro::main;
		3474
		3475	my $signal = new Coro::Signal;
		3476	push @WAIT_FOR_TICK, $signal;
		3477	$signal->wait;
		3478	}
		3479
		3480	sub wait_for_tick_begin {
		3481	return unless $TICK_WATCHER->is_active;
		3482	return if $Coro::current == $Coro::main;
		3483
		3484	my $signal = new Coro::Signal;
		3485	push @WAIT_FOR_TICK_BEGIN, $signal;
		3486	$signal->wait;
		3487	}
2176		3488
2177	$TICK_WATCHER = Event->timer (	3489	$TICK_WATCHER = Event->timer (
2178	reentrant => 0,	3490	reentrant => 0,
		3491	parked => 1,
2179	prio => 0,	3492	prio => 0,
2180	at => $NEXT_TICK || $TICK,	3493	at => $NEXT_TICK || $TICK,
2181	data => WF_AUTOCANCEL,	3494	data => WF_AUTOCANCEL,
2182	cb => sub {	3495	cb => sub {
		3496	if ($Coro::current != $Coro::main) {
		3497	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3498	unless ++$bug_warning > 10;
		3499	return;
		3500	}
		3501
		3502	$NOW = $tick_start = Event::time;
		3503
2183	cf::server_tick; # one server iteration	3504	cf::server_tick; # one server iteration
		3505
2184	$RUNTIME += $TICK;	3506	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;	3507	$NEXT_TICK += $TICK;
2186		3508
		3509	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3510	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3511	Coro::async_pool {
		3512	$Coro::current->{desc} = "runtime saver";
		3513	write_runtime
		3514	or warn "ERROR: unable to write runtime file: $!";
		3515	};
		3516	}
		3517
		3518	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3519	$sig->send;
		3520	}
		3521	while (my $sig = shift @WAIT_FOR_TICK) {
		3522	$sig->send;
		3523	}
		3524
		3525	$NOW = Event::time;
		3526
2187	# if we are delayed by four ticks or more, skip them all	3527	# if we are delayed by four ticks or more, skip them all
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3528	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2189		3529
2190	$TICK_WATCHER->at ($NEXT_TICK);	3530	$TICK_WATCHER->at ($NEXT_TICK);
2191	$TICK_WATCHER->start;	3531	$TICK_WATCHER->start;
		3532
		3533	$LOAD = ($NOW - $tick_start) / $TICK;
		3534	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3535
		3536	_post_tick;
2192	},	3537	},
2193	);	3538	);
2194		3539
		3540	{
		3541	BDB::min_parallel 8;
2195	IO::AIO::max_poll_time $TICK * 0.2;	3542	BDB::max_poll_time $TICK * 0.1;
2196		3543	$BDB_POLL_WATCHER = Event->io (
2197	Event->io (	3544	reentrant => 0,
2198	fd => IO::AIO::poll_fileno,	3545	fd => BDB::poll_fileno,
2199	poll => 'r',	3546	poll => 'r',
2200	prio => 5,	3547	prio => 0,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,	3548	data => WF_AUTOCANCEL,
		3549	cb => \&BDB::poll_cb,
		3550	);
		3551
		3552	BDB::set_sync_prepare {
		3553	my $status;
		3554	my $current = $Coro::current;
		3555	(
		3556	sub {
		3557	$status = $!;
		3558	$current->ready; undef $current;
		3559	},
		3560	sub {
		3561	Coro::schedule while defined $current;
		3562	$! = $status;
		3563	},
		3564	)
		3565	};
		3566
		3567	unless ($DB_ENV) {
		3568	$DB_ENV = BDB::db_env_create;
		3569	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3570	| BDB::LOG_AUTOREMOVE, 1);
		3571	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3572	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3573
		3574	cf::sync_job {
		3575	eval {
		3576	BDB::db_env_open
		3577	$DB_ENV,
		3578	$BDBDIR,
		3579	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3580	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3581	0666;
		3582
		3583	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3584	};
		3585
		3586	cf::cleanup "db_env_open(db): $@" if $@;
		3587	};
		3588	}
		3589
		3590	$BDB_DEADLOCK_WATCHER = Event->timer (
2207	after => 0,	3591	after => 3,
2208	interval => 10,	3592	interval => 1,
		3593	hard => 1,
		3594	prio => 0,
		3595	data => WF_AUTOCANCEL,
2209	cb => sub {	3596	cb => sub {
2210	(Coro::unblock_sub {	3597	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2211	write_runtime	3598	},
2212	or warn "ERROR: unable to write runtime file: $!";	3599	);
		3600	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3601	after => 11,
		3602	interval => 60,
		3603	hard => 1,
		3604	prio => 0,
		3605	data => WF_AUTOCANCEL,
		3606	cb => sub {
		3607	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3608	},
		3609	);
		3610	$BDB_TRICKLE_WATCHER = Event->timer (
		3611	after => 5,
		3612	interval => 10,
		3613	hard => 1,
		3614	prio => 0,
		3615	data => WF_AUTOCANCEL,
		3616	cb => sub {
		3617	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3618	},
		3619	);
		3620	}
		3621
		3622	{
		3623	IO::AIO::min_parallel 8;
		3624
		3625	undef $Coro::AIO::WATCHER;
		3626	IO::AIO::max_poll_time $TICK * 0.1;
		3627	$AIO_POLL_WATCHER = Event->io (
		3628	reentrant => 0,
		3629	data => WF_AUTOCANCEL,
		3630	fd => IO::AIO::poll_fileno,
		3631	poll => 'r',
		3632	prio => 0,
		3633	cb => \&IO::AIO::poll_cb,
		3634	);
		3635	}
		3636
		3637	my $_log_backtrace;
		3638
		3639	sub _log_backtrace {
		3640	my ($msg, @addr) = @_;
		3641
		3642	$msg =~ s/\n//;
		3643
		3644	# limit the # of concurrent backtraces
		3645	if ($_log_backtrace < 2) {
		3646	++$_log_backtrace;
		3647	async {
		3648	$Coro::current->{desc} = "abt $msg";
		3649
		3650	my @bt = fork_call {
		3651	@addr = map { sprintf "%x", $_ } @addr;
		3652	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3653	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3654	or die "addr2line: $!";
		3655
		3656	my @funcs;
		3657	my @res = <$fh>;
		3658	chomp for @res;
		3659	while (@res) {
		3660	my ($func, $line) = splice @res, 0, 2, ();
		3661	push @funcs, "[$func] $line";
		3662	}
		3663
		3664	@funcs
		3665	};
		3666
		3667	LOG llevInfo, "[ABT] $msg\n";
		3668	LOG llevInfo, "[ABT] $_\n" for @bt;
		3669	--$_log_backtrace;
2213	})->();	3670	};
		3671	} else {
		3672	LOG llevInfo, "[ABT] $msg\n";
		3673	LOG llevInfo, "[ABT] [suppressed]\n";
2214	},	3674	}
2215	);	3675	}
		3676
		3677	# load additional modules
		3678	use cf::pod;
2216		3679
2217	END { cf::emergency_save }	3680	END { cf::emergency_save }
2218		3681
2219	1	3682	1
2220		3683

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