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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.138 by root, Fri Jan 5 17:07:17 2007 UTC vs.
Revision 1.358 by root, Fri Sep 7 18:10:52 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 3.64 ();
		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 2.32 ();
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 $DB_ENV;
46		86
47	our %CFG;	87	our %CFG;
48		88
49	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	90	our $RUNTIME;
51		91
52	our %MAP; # all maps	92	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	93	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	94	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	95
		96	# used to convert map paths into valid unix filenames by replacing / by ∕
		97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
56		102
57	binmode STDOUT;	103	binmode STDOUT;
58	binmode STDERR;	104	binmode STDERR;
59		105
60	# read virtual server time, if available	106	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
65	}	111	}
66		112
67	mkdir cf::localdir;	113	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		115
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
76		119
77	#############################################################################	120	#############################################################################
78		121
79	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
80		123
…		…
87	=item $cf::RUNTIME	130	=item $cf::RUNTIME
88		131
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	133	every server tick.
91		134
92	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		138
94	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
96		143
97	=item $cf::NOW	144	=item $cf::NOW
98		145
99	The time of the last (current) server tick.	146	The time of the last (current) server tick.
100		147
101	=item $cf::TICK	148	=item $cf::TICK
102		149
103	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
104		161
105	=item %cf::CFG	162	=item %cf::CFG
106		163
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
109		178
110	=back	179	=back
111		180
112	=cut	181	=cut
113		182
114	BEGIN {	183	BEGIN {
115	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	185	my $msg = join "", @_;
117	utf8::encode $msg;
118		186
119	$msg .= "\n"	187	$msg .= "\n"
120	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
121		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
		192	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
123	};	194	};
124	}	195	}
125		196
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		204
133	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	206	# within the Safe compartment.
135	for my $pkg (qw(	207	for my $pkg (qw(
136	cf::global cf::attachable	208	cf::global cf::attachable
…		…
145		217
146	$Event::DIED = sub {	218	$Event::DIED = sub {
147	warn "error in event callback: @_";	219	warn "error in event callback: @_";
148	};	220	};
149		221
150	my %ext_pkg;	222	#############################################################################
151	my @exts;
152	my @hook;
153		223
154	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
155		225
156	=over 4	226	=over 4
157		227
158	=cut	228	=item dumpval $ref
159		229
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	230	=cut
		231
		232	sub dumpval {
		233	eval {
		234	local $SIG{__DIE__};
		235	my $d;
		236	if (1) {
		237	$d = new Data::Dumper([$_[0]], ["*var"]);
		238	$d->Terse(1);
		239	$d->Indent(2);
		240	$d->Quotekeys(0);
		241	$d->Useqq(1);
		242	#$d->Bless(...);
		243	$d->Seen($_[1]) if @_ > 1;
		244	$d = $d->Dump();
		245	}
		246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		247	$d
		248	} || "[unable to dump $_[0]: '$@']";
		249	}
161		250
162	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
163		252
164	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
165		254
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
174		256
175	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
176		258
177	=cut	259	=cut
178		260
179	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	262
181	JSON::Syck::Dump $_[0]	263	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	264	sub from_json ($) { $json_coder->decode ($_[0]) }
183		265
184	=item cf::lock_wait $string	266	=item cf::lock_wait $string
185		267
186	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
187		269
…		…
190	Wait until the given lock is available and then acquires it and returns	272	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	274	for example when the coroutine gets canceled), the lock is automatically
193	returned.	275	returned.
194		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
195	Lock names should begin with a unique identifier (for example, cf::map::find	280	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	281	uses map_find and cf::map::load uses map_load).
197		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
		286
198	=cut	287	=cut
199		288
200	our %LOCK;	289	our %LOCK;
		290	our %LOCKER;#d#
201		291
202	sub lock_wait($) {	292	sub lock_wait($) {
203	my ($key) = @_;	293	my ($key) = @_;
		294
		295	if ($LOCKER{$key} == $Coro::current) {#d#
		296	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		297	return;#d#
		298	}#d#
204		299
205	# wait for lock, if any	300	# wait for lock, if any
206	while ($LOCK{$key}) {	301	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	302	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	303	Coro::schedule;
…		…
214		309
215	# wait, to be sure we are not locked	310	# wait, to be sure we are not locked
216	lock_wait $key;	311	lock_wait $key;
217		312
218	$LOCK{$key} = [];	313	$LOCK{$key} = [];
		314	$LOCKER{$key} = $Coro::current;#d#
219		315
220	Coro::guard {	316	Coro::guard {
		317	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	318	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	319	$_->ready for @{ delete $LOCK{$key} };
223	}	320	}
224	}	321	}
225		322
		323	sub lock_active($) {
		324	my ($key) = @_;
		325
		326	! ! $LOCK{$key}
		327	}
		328
226	sub freeze_mainloop {	329	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	330	return unless $TICK_WATCHER->is_active;
228		331
229	my $guard = Coro::guard { $TICK_WATCHER->start };	332	my $guard = Coro::guard {
		333	$TICK_WATCHER->start;
		334	};
230	$TICK_WATCHER->stop;	335	$TICK_WATCHER->stop;
231	$guard	336	$guard
232	}	337	}
233		338
		339	=item cf::get_slot $time[, $priority[, $name]]
		340
		341	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		342	This call blocks and returns only when you have at least C<$time> seconds
		343	of cpu time till the next tick. The slot is only valid till the next cede.
		344
		345	The optional C<$name> can be used to identify the job to run. It might be
		346	used for statistical purposes and should identify the same time-class.
		347
		348	Useful for short background jobs.
		349
		350	=cut
		351
		352	our @SLOT_QUEUE;
		353	our $SLOT_QUEUE;
		354
		355	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		356	$SLOT_QUEUE = Coro::async {
		357	my $signal = new Coro::Signal;
		358
		359	while () {
		360	next_job:
		361	my $avail = cf::till_tick;
		362	if ($avail > 0.01) {
		363	for (0 .. $#SLOT_QUEUE) {
		364	if ($SLOT_QUEUE[$_][0] < $avail) {
		365	my $job = splice @SLOT_QUEUE, $_, 1, ();
		366	$job->[2]->send;
		367	Coro::cede;
		368	goto next_job;
		369	}
		370	}
		371	}
		372
		373	if (@SLOT_QUEUE) {
		374	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		375	push @cf::WAIT_FOR_TICK, $signal;
		376	$signal->wait;
		377	} else {
		378	Coro::schedule;
		379	}
		380	}
		381	};
		382
		383	sub get_slot($;$$) {
		384	my ($time, $pri, $name) = @_;
		385
		386	$time = $TICK * .6 if $time > $TICK * .6;
		387	my $sig = new Coro::Signal;
		388
		389	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		390	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		391	$SLOT_QUEUE->ready;
		392	$sig->wait;
		393	}
		394
		395	=item cf::async { BLOCK }
		396
		397	Currently the same as Coro::async_pool, meaning you cannot use
		398	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		399	thing you are allowed to do is call C<prio> on it.
		400
		401	=cut
		402
		403	BEGIN { *async = \&Coro::async_pool }
		404
234	=item cf::sync_job { BLOCK }	405	=item cf::sync_job { BLOCK }
235		406
236	The design of crossfire+ requires that the main coro ($Coro::main) is	407	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
237	always able to handle events or runnable, as crossfire+ is only partly	408	is always able to handle events or runnable, as Crossfire TRT is only
238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	409	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		410	acceptable.
239		411
240	If it must be done, put the blocking parts into C<sync_job>. This will run	412	If it must be done, put the blocking parts into C<sync_job>. This will run
241	the given BLOCK in another coroutine while waiting for the result. The	413	the given BLOCK in another coroutine while waiting for the result. The
242	server will be frozen during this time, so the block should either finish	414	server will be frozen during this time, so the block should either finish
243	fast or be very important.	415	fast or be very important.
…		…
246		418
247	sub sync_job(&) {	419	sub sync_job(&) {
248	my ($job) = @_;	420	my ($job) = @_;
249		421
250	if ($Coro::current == $Coro::main) {	422	if ($Coro::current == $Coro::main) {
		423	my $time = Event::time;
		424
251	# this is the main coro, too bad, we have to block	425	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	426	# till the operation succeeds, freezing the server :/
253		427
254	# TODO: use suspend/resume instead	428	# TODO: use suspend/resume instead
255	# (but this is cancel-safe)	429	# (but this is cancel-safe)
256	my $freeze_guard = freeze_mainloop;	430	my $freeze_guard = freeze_mainloop;
257		431
258	my $busy = 1;	432	my $busy = 1;
259	my @res;	433	my @res;
260		434
261	(Coro::async_pool {	435	(async {
262	@res = eval { $job->() };	436	@res = eval { $job->() };
263	warn $@ if $@;	437	warn $@ if $@;
264	undef $busy;	438	undef $busy;
265	})->prio (Coro::PRIO_MAX);	439	})->prio (Coro::PRIO_MAX);
266		440
267	while ($busy) {	441	while ($busy) {
268	Coro::cede_notself;	442	Coro::cede or Event::one_event;
269	Event::one_event unless Coro::nready;
270	}	443	}
		444
		445	$time = Event::time - $time;
		446
		447	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		448	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		449
		450	$tick_start += $time; # do not account sync jobs to server load
271		451
272	wantarray ? @res : $res[0]	452	wantarray ? @res : $res[0]
273	} else {	453	} else {
274	# we are in another coroutine, how wonderful, everything just works	454	# we are in another coroutine, how wonderful, everything just works
275		455
276	$job->()	456	$job->()
277	}	457	}
278	}	458	}
279		459
280	=item $coro = cf::coro { BLOCK }	460	=item $coro = cf::async_ext { BLOCK }
281		461
282	Creates (and readies) and returns a new coro. This coro is automcatially	462	Like async, but this coro is automatically being canceled when the
283	being canceled when the extension calling this is being unloaded.	463	extension calling this is being unloaded.
284		464
285	=cut	465	=cut
286		466
287	sub coro(&) {	467	sub async_ext(&) {
288	my $cb = shift;	468	my $cb = shift;
289		469
290	my $coro = &Coro::async_pool ($cb);	470	my $coro = &Coro::async ($cb);
291		471
292	$coro->on_destroy (sub {	472	$coro->on_destroy (sub {
293	delete $EXT_CORO{$coro+0};	473	delete $EXT_CORO{$coro+0};
294	});	474	});
295	$EXT_CORO{$coro+0} = $coro;	475	$EXT_CORO{$coro+0} = $coro;
296		476
297	$coro	477	$coro
298	}	478	}
299		479
300	sub write_runtime {	480	=item fork_call { }, $args
301	my $runtime = cf::localdir . "/runtime";
302		481
303	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	482	Executes the given code block with the given arguments in a seperate
304	or return;	483	process, returning the results. Everything must be serialisable with
		484	Coro::Storable. May, of course, block. Note that the executed sub may
		485	never block itself or use any form of Event handling.
305		486
306	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	487	=cut
307	(aio_write $fh, 0, (length $value), $value, 0) <= 0
308	and return;
309		488
310	aio_fsync $fh	489	sub fork_call(&@) {
311	and return;	490	my ($cb, @args) = @_;
312		491
313	close $fh	492	# we seemingly have to make a local copy of the whole thing,
314	or return;	493	# otherwise perl prematurely frees the stuff :/
		494	# TODO: investigate and fix (likely this will be rather laborious)
315		495
316	aio_rename "$runtime~", $runtime	496	my @res = Coro::Util::fork_eval {
317	and return;	497	reset_signals;
		498	&$cb
		499	}, @args;
318		500
		501	wantarray ? @res : $res[-1]
		502	}
		503
		504	=item $value = cf::db_get $family => $key
		505
		506	Returns a single value from the environment database.
		507
		508	=item cf::db_put $family => $key => $value
		509
		510	Stores the given C<$value> in the family. It can currently store binary
		511	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		512
		513	=cut
		514
		515	our $DB;
		516
		517	sub db_init {
		518	unless ($DB) {
		519	$DB = BDB::db_create $DB_ENV;
		520
		521	cf::sync_job {
		522	eval {
		523	$DB->set_flags (BDB::CHKSUM);
		524
		525	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		526	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		527	cf::cleanup "db_open(db): $!" if $!;
		528	};
		529	cf::cleanup "db_open(db): $@" if $@;
		530	};
319	1	531	}
		532	}
		533
		534	sub db_get($$) {
		535	my $key = "$_[0]/$_[1]";
		536
		537	cf::sync_job {
		538	BDB::db_get $DB, undef, $key, my $data;
		539
		540	$! ? ()
		541	: $data
		542	}
		543	}
		544
		545	sub db_put($$$) {
		546	BDB::dbreq_pri 4;
		547	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		548	}
		549
		550	=item cf::cache $id => [$paths...], $processversion => $process
		551
		552	Generic caching function that returns the value of the resource $id,
		553	caching and regenerating as required.
		554
		555	This function can block.
		556
		557	=cut
		558
		559	sub cache {
		560	my ($id, $src, $processversion, $process) = @_;
		561
		562	my $meta =
		563	join "\x00",
		564	$processversion,
		565	map {
		566	aio_stat $_
		567	and Carp::croak "$_: $!";
		568
		569	($_, (stat _)[7,9])
		570	} @$src;
		571
		572	my $dbmeta = db_get cache => "$id/meta";
		573	if ($dbmeta ne $meta) {
		574	# changed, we may need to process
		575
		576	my @data;
		577	my $md5;
		578
		579	for (0 .. $#$src) {
		580	0 <= aio_load $src->[$_], $data[$_]
		581	or Carp::croak "$src->[$_]: $!";
		582	}
		583
		584	# if processing is expensive, check
		585	# checksum first
		586	if (1) {
		587	$md5 =
		588	join "\x00",
		589	$processversion,
		590	map {
		591	cf::cede_to_tick;
		592	($src->[$_], Digest::MD5::md5_hex $data[$_])
		593	} 0.. $#$src;
		594
		595
		596	my $dbmd5 = db_get cache => "$id/md5";
		597	if ($dbmd5 eq $md5) {
		598	db_put cache => "$id/meta", $meta;
		599
		600	return db_get cache => "$id/data";
		601	}
		602	}
		603
		604	my $t1 = Time::HiRes::time;
		605	my $data = $process->(\@data);
		606	my $t2 = Time::HiRes::time;
		607
		608	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		609
		610	db_put cache => "$id/data", $data;
		611	db_put cache => "$id/md5" , $md5;
		612	db_put cache => "$id/meta", $meta;
		613
		614	return $data;
		615	}
		616
		617	db_get cache => "$id/data"
		618	}
		619
		620	=item cf::datalog type => key => value, ...
		621
		622	Log a datalog packet of the given type with the given key-value pairs.
		623
		624	=cut
		625
		626	sub datalog($@) {
		627	my ($type, %kv) = @_;
		628	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
320	}	629	}
321		630
322	=back	631	=back
323		632
324	=cut	633	=cut
325
326	#############################################################################
327
328	package cf::path;
329
330	sub new {
331	my ($class, $path, $base) = @_;
332
333	$path = $path->as_string if ref $path;
334
335	my $self = bless { }, $class;
336
337	# {... are special paths that are not touched
338	# ?xxx/... are special absolute paths
339	# ?random/... random maps
340	# /! non-realised random map exit
341	# /... normal maps
342	# ~/... per-player maps without a specific player (DO NOT USE)
343	# ~user/... per-player map of a specific user
344
345	if ($path =~ /^{/) {
346	# fine as it is
347	} elsif ($path =~ s{^\?random/}{}) {
348	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
349	$self->{random} = cf::from_json $data;
350	} else {
351	if ($path =~ s{^~([^/]+)?}{}) {
352	$self->{user_rel} = 1;
353
354	if (defined $1) {
355	$self->{user} = $1;
356	} elsif ($base =~ m{^~([^/]+)/}) {
357	$self->{user} = $1;
358	} else {
359	warn "cannot resolve user-relative path without user <$path,$base>\n";
360	}
361	} elsif ($path =~ /^\//) {
362	# already absolute
363	} else {
364	$base =~ s{[^/]+/?$}{};
365	return $class->new ("$base/$path");
366	}
367
368	for ($path) {
369	redo if s{/\.?/}{/};
370	redo if s{/[^/]+/\.\./}{/};
371	}
372	}
373
374	$self->{path} = $path;
375
376	$self
377	}
378
379	# the name / primary key / in-game path
380	sub as_string {
381	my ($self) = @_;
382
383	$self->{user_rel} ? "~$self->{user}$self->{path}"
384	: $self->{random} ? "?random/$self->{path}"
385	: $self->{path}
386	}
387
388	# the displayed name, this is a one way mapping
389	sub visible_name {
390	my ($self) = @_;
391
392	# if (my $rmp = $self->{random}) {
393	# # todo: be more intelligent about this
394	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
395	# } else {
396	$self->as_string
397	# }
398	}
399
400	# escape the /'s in the path
401	sub _escaped_path {
402	# ∕ is U+2215
403	(my $path = $_[0]{path}) =~ s/\//∕/g;
404	$path
405	}
406
407	# the original (read-only) location
408	sub load_path {
409	my ($self) = @_;
410
411	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
412	}
413
414	# the temporary/swap location
415	sub save_path {
416	my ($self) = @_;
417
418	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
419	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
420	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
421	}
422
423	# the unique path, might be eq to save_path
424	sub uniq_path {
425	my ($self) = @_;
426
427	$self->{user_rel} || $self->{random}
428	? undef
429	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
430	}
431
432	# return random map parameters, or undef
433	sub random_map_params {
434	my ($self) = @_;
435
436	$self->{random}
437	}
438
439	# this is somewhat ugly, but style maps do need special treatment
440	sub is_style_map {
441	$_[0]{path} =~ m{^/styles/}
442	}
443
444	package cf;
445		634
446	#############################################################################	635	#############################################################################
447		636
448	=head2 ATTACHABLE OBJECTS	637	=head2 ATTACHABLE OBJECTS
449		638
…		…
451	attach callbacks/event handlers (a collection of which is called an "attachment")	640	attach callbacks/event handlers (a collection of which is called an "attachment")
452	to it. All such attachable objects support the following methods.	641	to it. All such attachable objects support the following methods.
453		642
454	In the following description, CLASS can be any of C<global>, C<object>	643	In the following description, CLASS can be any of C<global>, C<object>
455	C<player>, C<client> or C<map> (i.e. the attachable objects in	644	C<player>, C<client> or C<map> (i.e. the attachable objects in
456	crossfire+).	645	Crossfire TRT).
457		646
458	=over 4	647	=over 4
459		648
460	=item $attachable->attach ($attachment, key => $value...)	649	=item $attachable->attach ($attachment, key => $value...)
461		650
…		…
575	our @CB_TYPE = (); # registry for type (cf-object class) based events	764	our @CB_TYPE = (); # registry for type (cf-object class) based events
576	our @CB_MAP = ();	765	our @CB_MAP = ();
577		766
578	my %attachment;	767	my %attachment;
579		768
		769	sub cf::attachable::thawer_merge {
		770	# simply override everything except _meta
		771	local $_[0]{_meta};
		772	%{$_[0]} = %{$_[1]};
		773	}
		774
580	sub _attach_cb($$$$) {	775	sub _attach_cb($$$$) {
581	my ($registry, $event, $prio, $cb) = @_;	776	my ($registry, $event, $prio, $cb) = @_;
582		777
583	use sort 'stable';	778	use sort 'stable';
584		779
…		…
618	$registry = $CB_TYPE[$object_type] ||= [];	813	$registry = $CB_TYPE[$object_type] ||= [];
619		814
620	} elsif ($type eq "subtype") {	815	} elsif ($type eq "subtype") {
621	defined $object_type or Carp::croak "subtype specified without type";	816	defined $object_type or Carp::croak "subtype specified without type";
622	my $object_subtype = shift @arg;	817	my $object_subtype = shift @arg;
623	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	818	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
624		819
625	} elsif ($type eq "package") {	820	} elsif ($type eq "package") {
626	my $pkg = shift @arg;	821	my $pkg = shift @arg;
627		822
628	while (my ($name, $id) = each %cb_id) {	823	while (my ($name, $id) = each %cb_id) {
…		…
657	_attach $registry, $klass, @attach;	852	_attach $registry, $klass, @attach;
658	}	853	}
659		854
660	$obj->{$name} = \%arg;	855	$obj->{$name} = \%arg;
661	} else {	856	} else {
662	warn "object uses attachment '$name' that is not available, postponing.\n";	857	warn "object uses attachment '$name' which is not available, postponing.\n";
663	}	858	}
664		859
665	$obj->{_attachment}{$name} = undef;	860	$obj->{_attachment}{$name} = undef;
666	}	861	}
667		862
…		…
669	if (ref $_[0]) {	864	if (ref $_[0]) {
670	_object_attach @_;	865	_object_attach @_;
671	} else {	866	} else {
672	_attach shift->_attach_registry, @_;	867	_attach shift->_attach_registry, @_;
673	}	868	}
		869	_recalc_want;
674	};	870	};
675		871
676	# all those should be optimised	872	# all those should be optimised
677	sub cf::attachable::detach {	873	sub cf::attachable::detach {
678	my ($obj, $name) = @_;	874	my ($obj, $name) = @_;
…		…
681	delete $obj->{_attachment}{$name};	877	delete $obj->{_attachment}{$name};
682	reattach ($obj);	878	reattach ($obj);
683	} else {	879	} else {
684	Carp::croak "cannot, currently, detach class attachments";	880	Carp::croak "cannot, currently, detach class attachments";
685	}	881	}
		882	_recalc_want;
686	};	883	};
687		884
688	sub cf::attachable::attached {	885	sub cf::attachable::attached {
689	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
690		887
…		…
705	";	902	";
706	die if $@;	903	die if $@;
707	}	904	}
708		905
709	our $override;	906	our $override;
710	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	907	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
711		908
712	sub override {	909	sub override {
713	$override = 1;	910	$override = 1;
714	@invoke_results = ();	911	@INVOKE_RESULTS = (@_);
715	}	912	}
716		913
717	sub do_invoke {	914	sub do_invoke {
718	my $event = shift;	915	my $event = shift;
719	my $callbacks = shift;	916	my $callbacks = shift;
720		917
721	@invoke_results = ();	918	@INVOKE_RESULTS = ();
722		919
723	local $override;	920	local $override;
724		921
725	for (@$callbacks) {	922	for (@$callbacks) {
726	eval { &{$_->[1]} };	923	eval { &{$_->[1]} };
…		…
743		940
744	Generate an object-specific event with the given arguments.	941	Generate an object-specific event with the given arguments.
745		942
746	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	943	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
747	removed in future versions), and there is no public API to access override	944	removed in future versions), and there is no public API to access override
748	results (if you must, access C<@cf::invoke_results> directly).	945	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
749		946
750	=back	947	=back
751		948
752	=cut	949	=cut
753		950
754	#############################################################################	951	#############################################################################
755	# object support	952	# object support
		953	#
		954
		955	sub _can_merge {
		956	my ($ob1, $ob2) = @_;
		957
		958	local $Storable::canonical = 1;
		959	my $fob1 = Storable::freeze $ob1;
		960	my $fob2 = Storable::freeze $ob2;
		961
		962	$fob1 eq $fob2
		963	}
756		964
757	sub reattach {	965	sub reattach {
758	# basically do the same as instantiate, without calling instantiate	966	# basically do the same as instantiate, without calling instantiate
759	my ($obj) = @_;	967	my ($obj) = @_;
		968
		969	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
760		970
761	my $registry = $obj->registry;	971	my $registry = $obj->registry;
762		972
763	@$registry = ();	973	@$registry = ();
764		974
…		…
803	);	1013	);
804		1014
805	sub object_freezer_save {	1015	sub object_freezer_save {
806	my ($filename, $rdata, $objs) = @_;	1016	my ($filename, $rdata, $objs) = @_;
807		1017
		1018	my $guard = cf::lock_acquire "io";
		1019
808	sync_job {	1020	sync_job {
809	if (length $$rdata) {	1021	if (length $$rdata) {
810	warn sprintf "saving %s (%d,%d)\n",	1022	warn sprintf "saving %s (%d,%d)\n",
811	$filename, length $$rdata, scalar @$objs;	1023	$filename, length $$rdata, scalar @$objs;
812		1024
813	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1025	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
814	chmod SAVE_MODE, $fh;	1026	chmod SAVE_MODE, $fh;
815	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1027	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
816	aio_fsync $fh;	1028	aio_fsync $fh if $cf::USE_FSYNC;
817	close $fh;	1029	close $fh;
818		1030
819	if (@$objs) {	1031	if (@$objs) {
820	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1032	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
821	chmod SAVE_MODE, $fh;	1033	chmod SAVE_MODE, $fh;
822	my $data = Storable::nfreeze { version => 1, objs => $objs };	1034	my $data = Storable::nfreeze { version => 1, objs => $objs };
823	aio_write $fh, 0, (length $data), $data, 0;	1035	aio_write $fh, 0, (length $data), $data, 0;
824	aio_fsync $fh;	1036	aio_fsync $fh if $cf::USE_FSYNC;
825	close $fh;	1037	close $fh;
826	aio_rename "$filename.pst~", "$filename.pst";	1038	aio_rename "$filename.pst~", "$filename.pst";
827	}	1039	}
828	} else {	1040	} else {
829	aio_unlink "$filename.pst";	1041	aio_unlink "$filename.pst";
…		…
835	}	1047	}
836	} else {	1048	} else {
837	aio_unlink $filename;	1049	aio_unlink $filename;
838	aio_unlink "$filename.pst";	1050	aio_unlink "$filename.pst";
839	}	1051	}
840	}	1052	};
		1053
		1054	undef $guard;
841	}	1055	}
842		1056
843	sub object_freezer_as_string {	1057	sub object_freezer_as_string {
844	my ($rdata, $objs) = @_;	1058	my ($rdata, $objs) = @_;
845		1059
…		…
850		1064
851	sub object_thawer_load {	1065	sub object_thawer_load {
852	my ($filename) = @_;	1066	my ($filename) = @_;
853		1067
854	my ($data, $av);	1068	my ($data, $av);
		1069
		1070	my $guard = cf::lock_acquire "io";
855		1071
856	(aio_load $filename, $data) >= 0	1072	(aio_load $filename, $data) >= 0
857	or return;	1073	or return;
858		1074
859	unless (aio_stat "$filename.pst") {	1075	unless (aio_stat "$filename.pst") {
860	(aio_load "$filename.pst", $av) >= 0	1076	(aio_load "$filename.pst", $av) >= 0
861	or return;	1077	or return;
		1078
		1079	undef $guard;
862	$av = eval { (Storable::thaw $av)->{objs} };	1080	$av = eval { (Storable::thaw $av)->{objs} };
863	}	1081	}
864		1082
865	warn sprintf "loading %s (%d)\n",	1083	warn sprintf "loading %s (%d)\n",
866	$filename, length $data, scalar @{$av || []};#d#	1084	$filename, length $data, scalar @{$av || []};
		1085
867	return ($data, $av);	1086	($data, $av)
868	}	1087	}
		1088
		1089	=head2 COMMAND CALLBACKS
		1090
		1091	=over 4
		1092
		1093	=cut
869		1094
870	#############################################################################	1095	#############################################################################
871	# command handling &c	1096	# command handling &c
872		1097
873	=item cf::register_command $name => \&callback($ob,$args);	1098	=item cf::register_command $name => \&callback($ob,$args);
…		…
886	push @{ $COMMAND{$name} }, [$caller, $cb];	1111	push @{ $COMMAND{$name} }, [$caller, $cb];
887	}	1112	}
888		1113
889	=item cf::register_extcmd $name => \&callback($pl,$packet);	1114	=item cf::register_extcmd $name => \&callback($pl,$packet);
890		1115
891	Register a callbackf ro execution when the client sends an extcmd packet.	1116	Register a callback for execution when the client sends an (synchronous)
		1117	extcmd packet. Ext commands will be processed in the order they are
		1118	received by the server, like other user commands. The first argument is
		1119	the logged-in player. Ext commands can only be processed after a player
		1120	has logged in successfully.
892		1121
893	If the callback returns something, it is sent back as if reply was being	1122	If the callback returns something, it is sent back as if reply was being
894	called.	1123	called.
895		1124
		1125	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1126
		1127	Register a callback for execution when the client sends an (asynchronous)
		1128	exticmd packet. Exti commands are processed by the server as soon as they
		1129	are received, i.e. out of order w.r.t. other commands. The first argument
		1130	is a client socket. Exti commands can be received anytime, even before
		1131	log-in.
		1132
		1133	If the callback returns something, it is sent back as if reply was being
		1134	called.
		1135
896	=cut	1136	=cut
897		1137
898	sub register_extcmd {	1138	sub register_extcmd {
899	my ($name, $cb) = @_;	1139	my ($name, $cb) = @_;
900		1140
901	my $caller = caller;
902	#warn "registering extcmd '$name' to '$caller'";
903
904	$EXTCMD{$name} = [$cb, $caller];	1141	$EXTCMD{$name} = $cb;
		1142	}
		1143
		1144	sub register_exticmd {
		1145	my ($name, $cb) = @_;
		1146
		1147	$EXTICMD{$name} = $cb;
905	}	1148	}
906		1149
907	cf::player->attach (	1150	cf::player->attach (
908	on_command => sub {	1151	on_command => sub {
909	my ($pl, $name, $params) = @_;	1152	my ($pl, $name, $params) = @_;
…		…
918	cf::override;	1161	cf::override;
919	},	1162	},
920	on_extcmd => sub {	1163	on_extcmd => sub {
921	my ($pl, $buf) = @_;	1164	my ($pl, $buf) = @_;
922		1165
923	my $msg = eval { from_json $buf };	1166	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
924		1167
925	if (ref $msg) {	1168	if (ref $msg) {
		1169	my ($type, $reply, @payload) =
		1170	"ARRAY" eq ref $msg
		1171	? @$msg
		1172	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1173
		1174	my @reply;
		1175
926	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1176	if (my $cb = $EXTCMD{$type}) {
927	if (my %reply = $cb->[0]->($pl, $msg)) {	1177	@reply = $cb->($pl, @payload);
928	$pl->ext_reply ($msg->{msgid}, %reply);
929	}
930	}	1178	}
		1179
		1180	$pl->ext_reply ($reply, @reply)
		1181	if $reply;
		1182
931	} else {	1183	} else {
932	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1184	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
933	}	1185	}
934		1186
935	cf::override;	1187	cf::override;
936	},	1188	},
937	);	1189	);
938		1190
939	sub register {
940	my ($base, $pkg) = @_;
941
942	#TODO
943	}
944
945	sub load_extension {	1191	sub load_extensions {
		1192	cf::sync_job {
		1193	my %todo;
		1194
		1195	for my $path (<$LIBDIR/*.ext>) {
		1196	next unless -r $path;
		1197
		1198	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1199	my $base = $1;
		1200	my $pkg = $1;
		1201	$pkg =~ s/[^[:word:]]/_/g;
		1202	$pkg = "ext::$pkg";
		1203
		1204	open my $fh, "<:utf8", $path
		1205	or die "$path: $!";
		1206
		1207	my $source = do { local $/; <$fh> };
		1208
		1209	my %ext = (
		1210	path => $path,
		1211	base => $base,
		1212	pkg => $pkg,
		1213	);
		1214
		1215	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1216	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1217
		1218	$ext{source} =
		1219	"package $pkg; use strict; use utf8;\n"
		1220	. "#line 1 \"$path\"\n{\n"
		1221	. $source
		1222	. "\n};\n1";
		1223
		1224	$todo{$base} = \%ext;
		1225	}
		1226
		1227	my %done;
		1228	while (%todo) {
		1229	my $progress;
		1230
		1231	while (my ($k, $v) = each %todo) {
		1232	for (split /,\s*/, $v->{meta}{depends}) {
		1233	goto skip
		1234	unless exists $done{$_};
		1235	}
		1236
		1237	warn "... loading '$k' into '$v->{pkg}'\n";
		1238
		1239	unless (eval $v->{source}) {
		1240	my $msg = $@ ? "$v->{path}: $@\n"
		1241	: "$v->{base}: extension inactive.\n";
		1242
		1243	if (exists $v->{meta}{mandatory}) {
		1244	warn $msg;
		1245	warn "mandatory extension failed to load, exiting.\n";
		1246	exit 1;
		1247	}
		1248
		1249	warn $msg;
		1250	}
		1251
		1252	$done{$k} = delete $todo{$k};
		1253	push @EXTS, $v->{pkg};
		1254	$progress = 1;
		1255	}
		1256
		1257	skip:
		1258	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1259	unless $progress;
		1260	}
		1261	};
		1262	}
		1263
		1264	#############################################################################
		1265
		1266	=back
		1267
		1268	=head2 CORE EXTENSIONS
		1269
		1270	Functions and methods that extend core crossfire objects.
		1271
		1272	=cut
		1273
		1274	package cf::player;
		1275
		1276	use Coro::AIO;
		1277
		1278	=head3 cf::player
		1279
		1280	=over 4
		1281
		1282	=item cf::player::find $login
		1283
		1284	Returns the given player object, loading it if necessary (might block).
		1285
		1286	=cut
		1287
		1288	sub playerdir($) {
		1289	"$PLAYERDIR/"
		1290	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1291	}
		1292
		1293	sub path($) {
		1294	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1295
		1296	(playerdir $login) . "/playerdata"
		1297	}
		1298
		1299	sub find_active($) {
		1300	$cf::PLAYER{$_[0]}
		1301	and $cf::PLAYER{$_[0]}->active
		1302	and $cf::PLAYER{$_[0]}
		1303	}
		1304
		1305	sub exists($) {
		1306	my ($login) = @_;
		1307
		1308	$cf::PLAYER{$login}
		1309	or cf::sync_job { !aio_stat path $login }
		1310	}
		1311
		1312	sub find($) {
		1313	return $cf::PLAYER{$_[0]} || do {
		1314	my $login = $_[0];
		1315
		1316	my $guard = cf::lock_acquire "user_find:$login";
		1317
		1318	$cf::PLAYER{$_[0]} || do {
		1319	# rename old playerfiles to new ones
		1320	#TODO: remove when no longer required
		1321	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1322	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1323	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1324	aio_unlink +(playerdir $login) . "/$login.pl";
		1325
		1326	my $f = new_from_file cf::object::thawer path $login
		1327	or return;
		1328
		1329	$f->next;
		1330	my $pl = cf::player::load_pl $f
		1331	or return;
		1332	local $cf::PLAYER_LOADING{$login} = $pl;
		1333	$f->resolve_delayed_derefs;
		1334	$cf::PLAYER{$login} = $pl
		1335	}
		1336	}
		1337	}
		1338
		1339	sub save($) {
		1340	my ($pl) = @_;
		1341
		1342	return if $pl->{deny_save};
		1343
		1344	my $path = path $pl;
		1345	my $guard = cf::lock_acquire "user_save:$path";
		1346
		1347	return if $pl->{deny_save};
		1348
		1349	aio_mkdir playerdir $pl, 0770;
		1350	$pl->{last_save} = $cf::RUNTIME;
		1351
		1352	$pl->save_pl ($path);
		1353	cf::cede_to_tick;
		1354	}
		1355
		1356	sub new($) {
		1357	my ($login) = @_;
		1358
		1359	my $self = create;
		1360
		1361	$self->ob->name ($login);
		1362	$self->{deny_save} = 1;
		1363
		1364	$cf::PLAYER{$login} = $self;
		1365
		1366	$self
		1367	}
		1368
		1369	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1370
		1371	=cut
		1372
		1373	sub send_msg {
		1374	my $ns = shift->ns
		1375	or return;
		1376	$ns->send_msg (@_);
		1377	}
		1378
		1379	=item $pl->quit_character
		1380
		1381	Nukes the player without looking back. If logged in, the connection will
		1382	be destroyed. May block for a long time.
		1383
		1384	=cut
		1385
		1386	sub quit_character {
		1387	my ($pl) = @_;
		1388
		1389	my $name = $pl->ob->name;
		1390
		1391	$pl->{deny_save} = 1;
		1392	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1393
		1394	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1395	$pl->deactivate;
		1396	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1397	$pl->ns->destroy if $pl->ns;
		1398
		1399	my $path = playerdir $pl;
		1400	my $temp = "$path~$cf::RUNTIME~deleting~";
		1401	aio_rename $path, $temp;
		1402	delete $cf::PLAYER{$pl->ob->name};
		1403	$pl->destroy;
		1404
		1405	my $prefix = qr<^~\Q$name\E/>;
		1406
		1407	# nuke player maps
		1408	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1409
		1410	IO::AIO::aio_rmtree $temp;
		1411	}
		1412
		1413	=item $pl->kick
		1414
		1415	Kicks a player out of the game. This destroys the connection.
		1416
		1417	=cut
		1418
		1419	sub kick {
		1420	my ($pl, $kicker) = @_;
		1421
		1422	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1423	$pl->killer ("kicked");
		1424	$pl->ns->destroy;
		1425	}
		1426
		1427	=item cf::player::list_logins
		1428
		1429	Returns am arrayref of all valid playernames in the system, can take a
		1430	while and may block, so not sync_job-capable, ever.
		1431
		1432	=cut
		1433
		1434	sub list_logins {
		1435	my $dirs = aio_readdir $PLAYERDIR
		1436	or return [];
		1437
		1438	my @logins;
		1439
		1440	for my $login (@$dirs) {
		1441	my $path = path $login;
		1442
		1443	# a .pst is a dead give-away for a valid player
		1444	unless (-e "$path.pst") {
		1445	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1446	aio_read $fh, 0, 512, my $buf, 0 or next;
		1447	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1448	}
		1449
		1450	utf8::decode $login;
		1451	push @logins, $login;
		1452	}
		1453
		1454	\@logins
		1455	}
		1456
		1457	=item $player->maps
		1458
		1459	Returns an arrayref of map paths that are private for this
		1460	player. May block.
		1461
		1462	=cut
		1463
		1464	sub maps($) {
		1465	my ($pl) = @_;
		1466
		1467	$pl = ref $pl ? $pl->ob->name : $pl;
		1468
		1469	my $files = aio_readdir playerdir $pl
		1470	or return;
		1471
		1472	my @paths;
		1473
		1474	for (@$files) {
		1475	utf8::decode $_;
		1476	next if /\.(?:pl|pst)$/;
		1477	next unless /^$PATH_SEP/o;
		1478
		1479	push @paths, cf::map::normalise "~$pl/$_";
		1480	}
		1481
		1482	\@paths
		1483	}
		1484
		1485	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1486
		1487	Expand crossfire pod fragments into protocol xml.
		1488
		1489	=cut
		1490
		1491	sub expand_cfpod {
		1492	((my $self), (local $_)) = @_;
		1493
		1494	# escape & and <
		1495	s/&/&amp;/g;
		1496	s/(?<![BIUGHT])</&lt;/g;
		1497
		1498	# this is buggy, it needs to properly take care of nested <'s
		1499
		1500	1 while
		1501	# replace B<>, I<>, U<> etc.
		1502	s/B<([^\>]*)>/<b>$1<\/b>/
		1503	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1504	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1505	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1506	# replace G<male|female> tags
		1507	|| s{G<([^>|]*)\|([^>]*)>}{
		1508	$self->gender ? $2 : $1
		1509	}ge
		1510	# replace H<hint text>
		1511	|| s{H<([^\>]*)>}
		1512	{
		1513	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1514	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1515	"")
		1516	[$self->{hintmode}]
		1517	}ge;
		1518
		1519	# create single paragraphs (very hackish)
		1520	s/(?<=\S)\n(?=\w)/ /g;
		1521
		1522	# compress some whitespace
		1523	s/\s+\n/\n/g; # ws line-ends
		1524	s/\n\n+/\n/g; # double lines
		1525	s/^\n+//; # beginning lines
		1526	s/\n+$//; # ending lines
		1527
		1528	$_
		1529	}
		1530
		1531	sub hintmode {
		1532	$_[0]{hintmode} = $_[1] if @_ > 1;
		1533	$_[0]{hintmode}
		1534	}
		1535
		1536	=item $player->ext_reply ($msgid, @msg)
		1537
		1538	Sends an ext reply to the player.
		1539
		1540	=cut
		1541
		1542	sub ext_reply($$@) {
		1543	my ($self, $id, @msg) = @_;
		1544
		1545	$self->ns->ext_reply ($id, @msg)
		1546	}
		1547
		1548	=item $player->ext_msg ($type, @msg)
		1549
		1550	Sends an ext event to the client.
		1551
		1552	=cut
		1553
		1554	sub ext_msg($$@) {
		1555	my ($self, $type, @msg) = @_;
		1556
		1557	$self->ns->ext_msg ($type, @msg);
		1558	}
		1559
		1560	=head3 cf::region
		1561
		1562	=over 4
		1563
		1564	=cut
		1565
		1566	package cf::region;
		1567
		1568	=item cf::region::find_by_path $path
		1569
		1570	Tries to decuce the likely region for a map knowing only its path.
		1571
		1572	=cut
		1573
		1574	sub find_by_path($) {
946	my ($path) = @_;	1575	my ($path) = @_;
947		1576
948	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1577	my ($match, $specificity);
949	my $base = $1;
950	my $pkg = $1;
951	$pkg =~ s/[^[:word:]]/_/g;
952	$pkg = "ext::$pkg";
953		1578
954	warn "loading '$path' into '$pkg'\n";	1579	for my $region (list) {
955		1580	if ($region->{match} && $path =~ $region->{match}) {
956	open my $fh, "<:utf8", $path	1581	($match, $specificity) = ($region, $region->specificity)
957	or die "$path: $!";	1582	if $region->specificity > $specificity;
958		1583	}
959	my $source =
960	"package $pkg; use strict; use utf8;\n"
961	. "#line 1 \"$path\"\n{\n"
962	. (do { local $/; <$fh> })
963	. "\n};\n1";
964
965	eval $source
966	or die $@ ? "$path: $@\n"
967	: "extension disabled.\n";
968
969	push @exts, $pkg;
970	$ext_pkg{$base} = $pkg;
971
972	# no strict 'refs';
973	# @{"$pkg\::ISA"} = ext::;
974
975	register $base, $pkg;
976	}
977
978	sub unload_extension {
979	my ($pkg) = @_;
980
981	warn "removing extension $pkg\n";
982
983	# remove hooks
984	#TODO
985	# for my $idx (0 .. $#PLUGIN_EVENT) {
986	# delete $hook[$idx]{$pkg};
987	# }	1584	}
988		1585
989	# remove commands	1586	$match
990	for my $name (keys %COMMAND) {
991	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
992
993	if (@cb) {
994	$COMMAND{$name} = \@cb;
995	} else {
996	delete $COMMAND{$name};
997	}
998	}
999
1000	# remove extcmds
1001	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1002	delete $EXTCMD{$name};
1003	}
1004
1005	if (my $cb = $pkg->can ("unload")) {
1006	eval {
1007	$cb->($pkg);
1008	1
1009	} or warn "$pkg unloaded, but with errors: $@";
1010	}
1011
1012	Symbol::delete_package $pkg;
1013	}
1014
1015	sub load_extensions {
1016	for my $ext (<$LIBDIR/*.ext>) {
1017	next unless -r $ext;
1018	eval {
1019	load_extension $ext;
1020	1
1021	} or warn "$ext not loaded: $@";
1022	}
1023	}
1024
1025	#############################################################################
1026	# load/save/clean perl data associated with a map
1027
1028	*cf::mapsupport::on_clean = sub {
1029	my ($map) = @_;
1030
1031	my $path = $map->tmpname;
1032	defined $path or return;
1033
1034	unlink "$path.pst";
1035	};
1036
1037	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1038
1039	#############################################################################
1040	# load/save perl data associated with player->ob objects
1041
1042	sub all_objects(@) {
1043	@_, map all_objects ($_->inv), @_
1044	}
1045
1046	# TODO: compatibility cruft, remove when no longer needed
1047	cf::player->attach (
1048	on_load => sub {
1049	my ($pl, $path) = @_;
1050
1051	for my $o (all_objects $pl->ob) {
1052	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1053	$o->set_ob_key_value ("_perl_data");
1054
1055	%$o = %{ Storable::thaw pack "H*", $value };
1056	}
1057	}
1058	},
1059	);
1060
1061	#############################################################################
1062
1063	=head2 CORE EXTENSIONS
1064
1065	Functions and methods that extend core crossfire objects.
1066
1067	=head3 cf::player
1068
1069	=over 4
1070
1071	=item cf::player::exists $login
1072
1073	Returns true when the given account exists.
1074
1075	=cut
1076
1077	sub cf::player::exists($) {
1078	cf::player::find $_[0]
1079	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1080	}
1081
1082	=item $player->ext_reply ($msgid, $msgtype, %msg)
1083
1084	Sends an ext reply to the player.
1085
1086	=cut
1087
1088	sub cf::player::ext_reply($$$%) {
1089	my ($self, $id, %msg) = @_;
1090
1091	$msg{msgid} = $id;
1092
1093	$self->send ("ext " . to_json \%msg);
1094	}	1587	}
1095		1588
1096	=back	1589	=back
1097
1098		1590
1099	=head3 cf::map	1591	=head3 cf::map
1100		1592
1101	=over 4	1593	=over 4
1102		1594
…		…
1105	package cf::map;	1597	package cf::map;
1106		1598
1107	use Fcntl;	1599	use Fcntl;
1108	use Coro::AIO;	1600	use Coro::AIO;
1109		1601
		1602	use overload
		1603	'""' => \&as_string,
		1604	fallback => 1;
		1605
1110	our $MAX_RESET = 3600;	1606	our $MAX_RESET = 3600;
1111	our $DEFAULT_RESET = 3000;	1607	our $DEFAULT_RESET = 3000;
1112		1608
1113	sub generate_random_map {	1609	sub generate_random_map {
1114	my ($path, $rmp) = @_;	1610	my ($self, $rmp) = @_;
1115
1116	# mit "rum" bekleckern, nicht	1611	# mit "rum" bekleckern, nicht
1117	cf::map::_create_random_map	1612	$self->_create_random_map (
1118	$path,
1119	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1613	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1120	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1614	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1121	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1615	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1122	$rmp->{exit_on_final_map},	1616	$rmp->{exit_on_final_map},
1123	$rmp->{xsize}, $rmp->{ysize},	1617	$rmp->{xsize}, $rmp->{ysize},
1124	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1618	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1125	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1619	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1126	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1620	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1127	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1621	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1128	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1622	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1129	(cf::region::find $rmp->{region})	1623	(cf::region::find $rmp->{region}), $rmp->{custom}
		1624	)
		1625	}
		1626
		1627	=item cf::map->register ($regex, $prio)
		1628
		1629	Register a handler for the map path matching the given regex at the
		1630	givne priority (higher is better, built-in handlers have priority 0, the
		1631	default).
		1632
		1633	=cut
		1634
		1635	sub register {
		1636	my (undef, $regex, $prio) = @_;
		1637	my $pkg = caller;
		1638
		1639	no strict;
		1640	push @{"$pkg\::ISA"}, __PACKAGE__;
		1641
		1642	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1643	}
		1644
		1645	# also paths starting with '/'
		1646	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1647
		1648	sub thawer_merge {
		1649	my ($self, $merge) = @_;
		1650
		1651	# we have to keep some variables in memory intact
		1652	local $self->{path};
		1653	local $self->{load_path};
		1654
		1655	$self->SUPER::thawer_merge ($merge);
		1656	}
		1657
		1658	sub normalise {
		1659	my ($path, $base) = @_;
		1660
		1661	$path = "$path"; # make sure its a string
		1662
		1663	$path =~ s/\.map$//;
		1664
		1665	# map plan:
		1666	#
		1667	# /! non-realised random map exit (special hack!)
		1668	# {... are special paths that are not being touched
		1669	# ?xxx/... are special absolute paths
		1670	# ?random/... random maps
		1671	# /... normal maps
		1672	# ~user/... per-player map of a specific user
		1673
		1674	$path =~ s/$PATH_SEP/\//go;
		1675
		1676	# treat it as relative path if it starts with
		1677	# something that looks reasonable
		1678	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1679	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1680
		1681	$base =~ s{[^/]+/?$}{};
		1682	$path = "$base/$path";
		1683	}
		1684
		1685	for ($path) {
		1686	redo if s{//}{/};
		1687	redo if s{/\.?/}{/};
		1688	redo if s{/[^/]+/\.\./}{/};
		1689	}
		1690
		1691	$path
		1692	}
		1693
		1694	sub new_from_path {
		1695	my (undef, $path, $base) = @_;
		1696
		1697	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1698
		1699	$path = normalise $path, $base;
		1700
		1701	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1702	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1703	my $self = bless cf::map::new, $pkg;
		1704	$self->{path} = $path; $self->path ($path);
		1705	$self->init; # pass $1 etc.
		1706	return $self;
		1707	}
		1708	}
		1709
		1710	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1711	()
		1712	}
		1713
		1714	sub init {
		1715	my ($self) = @_;
		1716
		1717	$self
		1718	}
		1719
		1720	sub as_string {
		1721	my ($self) = @_;
		1722
		1723	"$self->{path}"
		1724	}
		1725
		1726	# the displayed name, this is a one way mapping
		1727	sub visible_name {
		1728	&as_string
		1729	}
		1730
		1731	# the original (read-only) location
		1732	sub load_path {
		1733	my ($self) = @_;
		1734
		1735	"$MAPDIR/$self->{path}.map"
		1736	}
		1737
		1738	# the temporary/swap location
		1739	sub save_path {
		1740	my ($self) = @_;
		1741
		1742	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1743	"$TMPDIR/$path.map"
		1744	}
		1745
		1746	# the unique path, undef == no special unique path
		1747	sub uniq_path {
		1748	my ($self) = @_;
		1749
		1750	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1751	"$UNIQUEDIR/$path"
1130	}	1752	}
1131		1753
1132	# and all this just because we cannot iterate over	1754	# and all this just because we cannot iterate over
1133	# all maps in C++...	1755	# all maps in C++...
1134	sub change_all_map_light {	1756	sub change_all_map_light {
…		…
1136		1758
1137	$_->change_map_light ($change)	1759	$_->change_map_light ($change)
1138	for grep $_->outdoor, values %cf::MAP;	1760	for grep $_->outdoor, values %cf::MAP;
1139	}	1761	}
1140		1762
		1763	sub decay_objects {
		1764	my ($self) = @_;
		1765
		1766	return if $self->{deny_reset};
		1767
		1768	$self->do_decay_objects;
		1769	}
		1770
		1771	sub unlink_save {
		1772	my ($self) = @_;
		1773
		1774	utf8::encode (my $save = $self->save_path);
		1775	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1776	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1777	}
		1778
1141	sub try_load_header($) {	1779	sub load_header_from($) {
1142	my ($path) = @_;	1780	my ($self, $path) = @_;
1143		1781
1144	utf8::encode $path;	1782	utf8::encode $path;
1145	aio_open $path, O_RDONLY, 0	1783	my $f = new_from_file cf::object::thawer $path
1146	or return;	1784	or return;
1147		1785
1148	my $map = cf::map::new	1786	$self->_load_header ($f)
1149	or return;	1787	or return;
1150		1788
1151	# for better error messages only, will be overwritten	1789	local $MAP_LOADING{$self->{path}} = $self;
1152	$map->path ($path);	1790	$f->resolve_delayed_derefs;
1153		1791
1154	$map->load_header ($path)	1792	$self->{load_path} = $path;
		1793
		1794	1
		1795	}
		1796
		1797	sub load_header_orig {
		1798	my ($self) = @_;
		1799
		1800	$self->load_header_from ($self->load_path)
		1801	}
		1802
		1803	sub load_header_temp {
		1804	my ($self) = @_;
		1805
		1806	$self->load_header_from ($self->save_path)
		1807	}
		1808
		1809	sub prepare_temp {
		1810	my ($self) = @_;
		1811
		1812	$self->last_access ((delete $self->{last_access})
		1813	|| $cf::RUNTIME); #d#
		1814	# safety
		1815	$self->{instantiate_time} = $cf::RUNTIME
		1816	if $self->{instantiate_time} > $cf::RUNTIME;
		1817	}
		1818
		1819	sub prepare_orig {
		1820	my ($self) = @_;
		1821
		1822	$self->{load_original} = 1;
		1823	$self->{instantiate_time} = $cf::RUNTIME;
		1824	$self->last_access ($cf::RUNTIME);
		1825	$self->instantiate;
		1826	}
		1827
		1828	sub load_header {
		1829	my ($self) = @_;
		1830
		1831	if ($self->load_header_temp) {
		1832	$self->prepare_temp;
		1833	} else {
		1834	$self->load_header_orig
1155	or return;	1835	or return;
		1836	$self->prepare_orig;
		1837	}
1156		1838
1157	$map->{load_path} = $path;	1839	$self->{deny_reset} = 1
		1840	if $self->no_reset;
1158		1841
1159	$map	1842	$self->default_region (cf::region::find_by_path $self->{path})
		1843	unless $self->default_region;
		1844
		1845	1
1160	}	1846	}
1161		1847
1162	sub find;	1848	sub find;
1163	sub find {	1849	sub find {
1164	my ($path, $origin) = @_;	1850	my ($path, $origin) = @_;
1165		1851
1166	#warn "find<$path,$origin>\n";#d#
1167
1168	$path = new cf::path $path, $origin && $origin->path;	1852	$path = normalise $path, $origin && $origin->path;
1169	my $key = $path->as_string;
1170		1853
		1854	cf::lock_wait "map_data:$path";#d#remove
1171	cf::lock_wait "map_find:$key";	1855	cf::lock_wait "map_find:$path";
1172		1856
1173	$cf::MAP{$key} || do {	1857	$cf::MAP{$path} || do {
1174	my $guard = cf::lock_acquire "map_find:$key";	1858	my $guard1 = cf::lock_acquire "map_find:$path";
		1859	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1175		1860
1176	# do it the slow way	1861	my $map = new_from_path cf::map $path
1177	my $map = try_load_header $path->save_path;
1178
1179	Coro::cede;
1180
1181	if ($map) {
1182	$map->last_access ((delete $map->{last_access})
1183	|| $cf::RUNTIME); #d#
1184	# safety
1185	$map->{instantiate_time} = $cf::RUNTIME
1186	if $map->{instantiate_time} > $cf::RUNTIME;
1187	} else {
1188	if (my $rmp = $path->random_map_params) {
1189	$map = generate_random_map $key, $rmp;
1190	} else {
1191	$map = try_load_header $path->load_path;
1192	}
1193
1194	$map or return;	1862	or return;
1195		1863
1196	$map->{load_original} = 1;
1197	$map->{instantiate_time} = $cf::RUNTIME;
1198	$map->last_access ($cf::RUNTIME);
1199	$map->instantiate;
1200
1201	# per-player maps become, after loading, normal maps
1202	$map->per_player (0) if $path->{user_rel};
1203	}
1204
1205	$map->path ($key);
1206	$map->{path} = $path;
1207	$map->{last_save} = $cf::RUNTIME;	1864	$map->{last_save} = $cf::RUNTIME;
1208		1865
1209	Coro::cede;	1866	$map->load_header
		1867	or return;
1210		1868
1211	if ($map->should_reset) {	1869	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1870	# doing this can freeze the server in a sync job, obviously
		1871	#$cf::WAIT_FOR_TICK->wait;
		1872	undef $guard1;
		1873	undef $guard2;
1212	$map->reset;	1874	$map->reset;
1213	undef $guard;
1214	$map = find $path	1875	return find $path;
1215	or return;
1216	}	1876	}
1217		1877
1218	$cf::MAP{$key} = $map	1878	$cf::MAP{$path} = $map
1219	}	1879	}
1220	}	1880	}
		1881
		1882	sub pre_load { }
		1883	sub post_load { }
1221		1884
1222	sub load {	1885	sub load {
1223	my ($self) = @_;	1886	my ($self) = @_;
1224		1887
		1888	local $self->{deny_reset} = 1; # loading can take a long time
		1889
1225	my $path = $self->{path};	1890	my $path = $self->{path};
		1891
		1892	{
1226	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1893	my $guard = cf::lock_acquire "map_data:$path";
1227		1894
		1895	return unless $self->valid;
1228	return if $self->in_memory != cf::MAP_SWAPPED;	1896	return if $self->in_memory != cf::MAP_SWAPPED;
1229		1897
1230	$self->in_memory (cf::MAP_LOADING);	1898	$self->in_memory (cf::MAP_LOADING);
1231		1899
1232	$self->alloc;	1900	$self->alloc;
1233	$self->load_objects ($self->{load_path}, 1)	1901
		1902	$self->pre_load;
		1903	cf::cede_to_tick;
		1904
		1905	my $f = new_from_file cf::object::thawer $self->{load_path};
		1906	$f->skip_block;
		1907	$self->_load_objects ($f)
1234	or return;	1908	or return;
1235		1909
1236	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1910	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1237	if delete $self->{load_original};	1911	if delete $self->{load_original};
1238		1912
1239	if (my $uniq = $path->uniq_path) {	1913	if (my $uniq = $self->uniq_path) {
1240	utf8::encode $uniq;	1914	utf8::encode $uniq;
1241	if (aio_open $uniq, O_RDONLY, 0) {	1915	unless (aio_stat $uniq) {
		1916	if (my $f = new_from_file cf::object::thawer $uniq) {
1242	$self->clear_unique_items;	1917	$self->clear_unique_items;
1243	$self->load_objects ($uniq, 0);	1918	$self->_load_objects ($f);
		1919	$f->resolve_delayed_derefs;
		1920	}
1244	}	1921	}
1245	}	1922	}
1246		1923
1247	Coro::cede;	1924	$f->resolve_delayed_derefs;
1248		1925
		1926	cf::cede_to_tick;
1249	# now do the right thing for maps	1927	# now do the right thing for maps
1250	$self->link_multipart_objects;	1928	$self->link_multipart_objects;
1251
1252	if ($self->{path}->is_style_map) {
1253	$self->{deny_save} = 1;
1254	$self->{deny_reset} = 1;
1255	} else {
1256	$self->fix_auto_apply;
1257	$self->decay_objects;
1258	$self->update_buttons;
1259	$self->set_darkness_map;
1260	$self->difficulty ($self->estimate_difficulty)	1929	$self->difficulty ($self->estimate_difficulty)
1261	unless $self->difficulty;	1930	unless $self->difficulty;
		1931	cf::cede_to_tick;
		1932
		1933	unless ($self->{deny_activate}) {
		1934	$self->decay_objects;
		1935	$self->fix_auto_apply;
		1936	$self->update_buttons;
		1937	cf::cede_to_tick;
		1938	$self->set_darkness_map;
		1939	cf::cede_to_tick;
1262	$self->activate;	1940	$self->activate;
1263	}	1941	}
1264		1942
1265	Coro::cede;	1943	$self->{last_save} = $cf::RUNTIME;
		1944	$self->last_access ($cf::RUNTIME);
1266		1945
1267	$self->in_memory (cf::MAP_IN_MEMORY);	1946	$self->in_memory (cf::MAP_IN_MEMORY);
		1947	}
		1948
		1949	$self->post_load;
		1950	}
		1951
		1952	sub customise_for {
		1953	my ($self, $ob) = @_;
		1954
		1955	return find "~" . $ob->name . "/" . $self->{path}
		1956	if $self->per_player;
		1957
		1958	# return find "?party/" . $ob->name . "/" . $self->{path}
		1959	# if $self->per_party;
		1960
		1961	$self
		1962	}
		1963
		1964	# find and load all maps in the 3x3 area around a map
		1965	sub load_neighbours {
		1966	my ($map) = @_;
		1967
		1968	my @neigh; # diagonal neighbours
		1969
		1970	for (0 .. 3) {
		1971	my $neigh = $map->tile_path ($_)
		1972	or next;
		1973	$neigh = find $neigh, $map
		1974	or next;
		1975	$neigh->load;
		1976
		1977	push @neigh,
		1978	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		1979	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1980	}
		1981
		1982	for (grep defined $_->[0], @neigh) {
		1983	my ($path, $origin) = @$_;
		1984	my $neigh = find $path, $origin
		1985	or next;
		1986	$neigh->load;
		1987	}
1268	}	1988	}
1269		1989
1270	sub find_sync {	1990	sub find_sync {
1271	my ($path, $origin) = @_;	1991	my ($path, $origin) = @_;
1272		1992
1273	cf::sync_job { cf::map::find $path, $origin }	1993	cf::sync_job { find $path, $origin }
1274	}	1994	}
1275		1995
1276	sub do_load_sync {	1996	sub do_load_sync {
1277	my ($map) = @_;	1997	my ($map) = @_;
1278		1998
		1999	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2000	if $Coro::current == $Coro::main;
		2001
1279	cf::sync_job { $map->load };	2002	cf::sync_job { $map->load };
		2003	}
		2004
		2005	our %MAP_PREFETCH;
		2006	our $MAP_PREFETCHER = undef;
		2007
		2008	sub find_async {
		2009	my ($path, $origin, $load) = @_;
		2010
		2011	$path = normalise $path, $origin && $origin->{path};
		2012
		2013	if (my $map = $cf::MAP{$path}) {
		2014	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2015	}
		2016
		2017	$MAP_PREFETCH{$path} |= $load;
		2018
		2019	$MAP_PREFETCHER ||= cf::async {
		2020	while (%MAP_PREFETCH) {
		2021	while (my ($k, $v) = each %MAP_PREFETCH) {
		2022	if (my $map = find $k) {
		2023	$map->load if $v;
		2024	}
		2025
		2026	delete $MAP_PREFETCH{$k};
		2027	}
		2028	}
		2029	undef $MAP_PREFETCHER;
		2030	};
		2031	$MAP_PREFETCHER->prio (6);
		2032
		2033	()
1280	}	2034	}
1281		2035
1282	sub save {	2036	sub save {
1283	my ($self) = @_;	2037	my ($self) = @_;
1284		2038
1285	my $lock = cf::lock_acquire "map_data:" . $self->path;	2039	my $lock = cf::lock_acquire "map_data:$self->{path}";
1286		2040
1287	$self->{last_save} = $cf::RUNTIME;	2041	$self->{last_save} = $cf::RUNTIME;
1288		2042
1289	return unless $self->dirty;	2043	return unless $self->dirty;
1290		2044
1291	my $save = $self->{path}->save_path; utf8::encode $save;	2045	my $save = $self->save_path; utf8::encode $save;
1292	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2046	my $uniq = $self->uniq_path; utf8::encode $uniq;
1293		2047
1294	$self->{load_path} = $save;	2048	$self->{load_path} = $save;
1295		2049
1296	return if $self->{deny_save};	2050	return if $self->{deny_save};
1297		2051
1298	local $self->{last_access} = $self->last_access;#d#	2052	local $self->{last_access} = $self->last_access;#d#
1299		2053
		2054	cf::async {
		2055	$_->contr->save for $self->players;
		2056	};
		2057
1300	if ($uniq) {	2058	if ($uniq) {
1301	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2059	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1302	$self->save_objects ($uniq, cf::IO_UNIQUES);	2060	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1303	} else {	2061	} else {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2062	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1305	}	2063	}
1306	}	2064	}
1307		2065
1308	sub swap_out {	2066	sub swap_out {
1309	my ($self) = @_;	2067	my ($self) = @_;
1310		2068
1311	# save first because save cedes	2069	# save first because save cedes
1312	$self->save;	2070	$self->save;
1313		2071
1314	my $lock = cf::lock_acquire "map_data:" . $self->path;	2072	my $lock = cf::lock_acquire "map_data:$self->{path}";
1315		2073
1316	return if $self->players;	2074	return if $self->players;
1317	return if $self->in_memory != cf::MAP_IN_MEMORY;	2075	return if $self->in_memory != cf::MAP_IN_MEMORY;
1318	return if $self->{deny_save};	2076	return if $self->{deny_save};
1319		2077
		2078	$self->deactivate;
1320	$self->clear;	2079	$self->clear;
1321	$self->in_memory (cf::MAP_SWAPPED);	2080	$self->in_memory (cf::MAP_SWAPPED);
1322	}	2081	}
1323		2082
1324	sub reset_at {	2083	sub reset_at {
1325	my ($self) = @_;	2084	my ($self) = @_;
1326		2085
1327	# TODO: safety, remove and allow resettable per-player maps	2086	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};
1329	return 1e99 if $self->{deny_reset};	2087	return 1e99 if $self->{deny_reset};
1330		2088
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2089	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2090	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		2091
…		…
1338	my ($self) = @_;	2096	my ($self) = @_;
1339		2097
1340	$self->reset_at <= $cf::RUNTIME	2098	$self->reset_at <= $cf::RUNTIME
1341	}	2099	}
1342		2100
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	2101	sub reset {
1365	my ($self) = @_;	2102	my ($self) = @_;
1366		2103
1367	my $lock = cf::lock_acquire "map_data:" . $self->path;	2104	my $lock = cf::lock_acquire "map_data:$self->{path}";
1368		2105
1369	return if $self->players;	2106	return if $self->players;
1370	return if $self->{path}{user_rel};#d#
1371		2107
1372	warn "resetting map ", $self->path;#d#	2108	warn "resetting map ", $self->path;
		2109
		2110	$self->in_memory (cf::MAP_SWAPPED);
		2111
		2112	# need to save uniques path
		2113	unless ($self->{deny_save}) {
		2114	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2115
		2116	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2117	if $uniq;
		2118	}
1373		2119
1374	delete $cf::MAP{$self->path};	2120	delete $cf::MAP{$self->path};
		2121
		2122	$self->deactivate;
		2123	$self->clear;
1375		2124
1376	$_->clear_links_to ($self) for values %cf::MAP;	2125	$_->clear_links_to ($self) for values %cf::MAP;
1377		2126
1378	$self->unlink_save;	2127	$self->unlink_save;
1379	$self->destroy;	2128	$self->destroy;
…		…
1382	my $nuke_counter = "aaaa";	2131	my $nuke_counter = "aaaa";
1383		2132
1384	sub nuke {	2133	sub nuke {
1385	my ($self) = @_;	2134	my ($self) = @_;
1386		2135
		2136	{
		2137	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2138
		2139	delete $cf::MAP{$self->path};
		2140
		2141	$self->unlink_save;
		2142
		2143	bless $self, "cf::map";
		2144	delete $self->{deny_reset};
1387	$self->{deny_save} = 1;	2145	$self->{deny_save} = 1;
1388	$self->reset_timeout (1);	2146	$self->reset_timeout (1);
1389	$self->rename ("{nuke}/" . ($nuke_counter++));	2147	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2148
		2149	$cf::MAP{$self->path} = $self;
		2150	}
		2151
1390	$self->reset; # polite request, might not happen	2152	$self->reset; # polite request, might not happen
1391	}	2153	}
1392		2154
1393	sub customise_for {	2155	=item $maps = cf::map::tmp_maps
1394	my ($map, $ob) = @_;
1395		2156
1396	if ($map->per_player) {	2157	Returns an arrayref with all map paths of currently instantiated and saved
1397	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2158	maps. May block.
		2159
		2160	=cut
		2161
		2162	sub tmp_maps() {
1398	}	2163	[
1399		2164	map {
1400	$map	2165	utf8::decode $_;
		2166	/\.map$/
		2167	? normalise $_
		2168	: ()
		2169	} @{ aio_readdir $TMPDIR or [] }
		2170	]
1401	}	2171	}
1402		2172
1403	sub emergency_save {	2173	=item $maps = cf::map::random_maps
1404	my $freeze_guard = cf::freeze_mainloop;
1405		2174
1406	warn "enter emergency map save\n";	2175	Returns an arrayref with all map paths of currently instantiated and saved
		2176	random maps. May block.
1407		2177
1408	cf::sync_job {	2178	=cut
1409	warn "begin emergency map save\n";
1410	$_->save for values %cf::MAP;
1411	};
1412		2179
1413	warn "end emergency map save\n";	2180	sub random_maps() {
		2181	[
		2182	map {
		2183	utf8::decode $_;
		2184	/\.map$/
		2185	? normalise "?random/$_"
		2186	: ()
		2187	} @{ aio_readdir $RANDOMDIR or [] }
		2188	]
		2189	}
		2190
		2191	=item cf::map::unique_maps
		2192
		2193	Returns an arrayref of paths of all shared maps that have
		2194	instantiated unique items. May block.
		2195
		2196	=cut
		2197
		2198	sub unique_maps() {
		2199	[
		2200	map {
		2201	utf8::decode $_;
		2202	/\.map$/
		2203	? normalise $_
		2204	: ()
		2205	} @{ aio_readdir $UNIQUEDIR or [] }
		2206	]
1414	}	2207	}
1415		2208
1416	package cf;	2209	package cf;
1417		2210
1418	=back	2211	=back
1419		2212
		2213	=head3 cf::object
		2214
		2215	=cut
		2216
		2217	package cf::object;
		2218
		2219	=over 4
		2220
		2221	=item $ob->inv_recursive
		2222
		2223	Returns the inventory of the object _and_ their inventories, recursively.
		2224
		2225	=cut
		2226
		2227	sub inv_recursive_;
		2228	sub inv_recursive_ {
		2229	map { $_, inv_recursive_ $_->inv } @_
		2230	}
		2231
		2232	sub inv_recursive {
		2233	inv_recursive_ inv $_[0]
		2234	}
		2235
		2236	=item $ref = $ob->ref
		2237
		2238	creates and returns a persistent reference to an objetc that can be stored as a string.
		2239
		2240	=item $ob = cf::object::deref ($refstring)
		2241
		2242	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2243	even if the object actually exists. May block.
		2244
		2245	=cut
		2246
		2247	sub deref {
		2248	my ($ref) = @_;
		2249
		2250	# temporary compatibility#TODO#remove
		2251	$ref =~ s{^<}{player/<};
		2252
		2253	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2254	my ($uuid, $name) = ($1, $2);
		2255	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2256	or return;
		2257	$pl->ob->uuid eq $uuid
		2258	or return;
		2259
		2260	$pl->ob
		2261	} else {
		2262	warn "$ref: cannot resolve object reference\n";
		2263	undef
		2264	}
		2265	}
		2266
		2267	package cf;
		2268
		2269	=back
1420		2270
1421	=head3 cf::object::player	2271	=head3 cf::object::player
1422		2272
1423	=over 4	2273	=over 4
1424		2274
…		…
1438		2288
1439	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2289	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1440		2290
1441	if ($self->{record_replies}) {	2291	if ($self->{record_replies}) {
1442	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2292	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2293
1443	} else {	2294	} else {
		2295	my $pl = $self->contr;
		2296
		2297	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2298	my $dialog = $pl->{npc_dialog};
		2299	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2300
		2301	} else {
1444	$msg = $npc->name . " says: $msg" if $npc;	2302	$msg = $npc->name . " says: $msg" if $npc;
1445	$self->message ($msg, $flags);	2303	$self->message ($msg, $flags);
		2304	}
1446	}	2305	}
		2306	}
		2307
		2308	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2309
		2310	=cut
		2311
		2312	sub cf::object::send_msg {
		2313	my $pl = shift->contr
		2314	or return;
		2315	$pl->send_msg (@_);
1447	}	2316	}
1448		2317
1449	=item $player_object->may ("access")	2318	=item $player_object->may ("access")
1450		2319
1451	Returns wether the given player is authorized to access resource "access"	2320	Returns wether the given player is authorized to access resource "access"
…		…
1464		2333
1465	=item $player_object->enter_link	2334	=item $player_object->enter_link
1466		2335
1467	Freezes the player and moves him/her to a special map (C<{link}>).	2336	Freezes the player and moves him/her to a special map (C<{link}>).
1468		2337
1469	The player should be reaosnably safe there for short amounts of time. You	2338	The player should be reasonably safe there for short amounts of time. You
1470	I<MUST> call C<leave_link> as soon as possible, though.	2339	I<MUST> call C<leave_link> as soon as possible, though.
1471		2340
		2341	Will never block.
		2342
1472	=item $player_object->leave_link ($map, $x, $y)	2343	=item $player_object->leave_link ($map, $x, $y)
1473		2344
1474	Moves the player out of the specila link map onto the given map. If the	2345	Moves the player out of the special C<{link}> map onto the specified
1475	map is not valid (or omitted), the player will be moved back to the	2346	map. If the map is not valid (or omitted), the player will be moved back
1476	location he/she was before the call to C<enter_link>, or, if that fails,	2347	to the location he/she was before the call to C<enter_link>, or, if that
1477	to the emergency map position.	2348	fails, to the emergency map position.
1478		2349
1479	Might block.	2350	Might block.
1480		2351
1481	=cut	2352	=cut
		2353
		2354	sub link_map {
		2355	unless ($LINK_MAP) {
		2356	$LINK_MAP = cf::map::find "{link}"
		2357	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2358	$LINK_MAP->load;
		2359	}
		2360
		2361	$LINK_MAP
		2362	}
1482		2363
1483	sub cf::object::player::enter_link {	2364	sub cf::object::player::enter_link {
1484	my ($self) = @_;	2365	my ($self) = @_;
1485		2366
1486	$self->deactivate_recursive;	2367	$self->deactivate_recursive;
1487		2368
1488	return if $self->map == $LINK_MAP;	2369	return if UNIVERSAL::isa $self->map, "ext::map_link";
1489		2370
1490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2371	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1491	if $self->map;	2372	if $self->map && $self->map->{path} ne "{link}";
1492		2373
1493	$self->enter_map ($LINK_MAP, 20, 20);	2374	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1494	}	2375	}
1495		2376
1496	sub cf::object::player::leave_link {	2377	sub cf::object::player::leave_link {
1497	my ($self, $map, $x, $y) = @_;	2378	my ($self, $map, $x, $y) = @_;
		2379
		2380	return unless $self->contr->active;
1498		2381
1499	my $link_pos = delete $self->{_link_pos};	2382	my $link_pos = delete $self->{_link_pos};
1500		2383
1501	unless ($map) {	2384	unless ($map) {
1502	# restore original map position	2385	# restore original map position
…		…
1516	# use -1 or undef as default coordinates, not 0, 0	2399	# use -1 or undef as default coordinates, not 0, 0
1517	($x, $y) = ($map->enter_x, $map->enter_y)	2400	($x, $y) = ($map->enter_x, $map->enter_y)
1518	if $x <=0 && $y <= 0;	2401	if $x <=0 && $y <= 0;
1519		2402
1520	$map->load;	2403	$map->load;
		2404	$map->load_neighbours;
1521		2405
		2406	return unless $self->contr->active;
1522	$self->activate_recursive;	2407	$self->activate_recursive;
		2408
		2409	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1523	$self->enter_map ($map, $x, $y);	2410	$self->enter_map ($map, $x, $y);
1524	}	2411	}
1525		2412
1526	cf::player->attach (	2413	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1527	on_logout => sub {
1528	my ($pl) = @_;
1529		2414
1530	# abort map switching before logout	2415	Moves the player to the given map-path and coordinates by first freezing
1531	if ($pl->ob->{_link_pos}) {	2416	her, loading and preparing them map, calling the provided $check callback
1532	cf::sync_job {	2417	that has to return the map if sucecssful, and then unfreezes the player on
1533	$pl->ob->leave_link	2418	the new (success) or old (failed) map position. In either case, $done will
1534	};	2419	be called at the end of this process.
1535	}
1536	},
1537	on_login => sub {
1538	my ($pl) = @_;
1539		2420
1540	# try to abort aborted map switching on player login :)
1541	# should happen only on crashes
1542	if ($pl->ob->{_link_pos}) {
1543	$pl->ob->enter_link;
1544	Coro::async_pool {
1545	# we need this sleep as the login has a concurrent enter_exit running
1546	# and this sleep increases chances of the player not ending up in scorn
1547	Coro::Timer::sleep 1;
1548	$pl->ob->leave_link;
1549	};
1550	}
1551	},
1552	);
1553
1554	=item $player_object->goto ($path, $x, $y)
1555
1556	=cut	2421	=cut
		2422
		2423	our $GOTOGEN;
1557		2424
1558	sub cf::object::player::goto {	2425	sub cf::object::player::goto {
1559	my ($self, $path, $x, $y) = @_;	2426	my ($self, $path, $x, $y, $check, $done) = @_;
		2427
		2428	# do generation counting so two concurrent goto's will be executed in-order
		2429	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1560		2430
1561	$self->enter_link;	2431	$self->enter_link;
1562		2432
1563	(Coro::async_pool {	2433	(async {
1564	$path = new cf::path $path;	2434	my $map = eval {
1565
1566	my $map = cf::map::find $path->as_string;	2435	my $map = cf::map::find $path;
		2436
		2437	if ($map) {
1567	$map = $map->customise_for ($self) if $map;	2438	$map = $map->customise_for ($self);
1568		2439	$map = $check->($map) if $check && $map;
1569	# warn "entering ", $map->path, " at ($x, $y)\n"	2440	} else {
1570	# if $map;
1571
1572	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2441	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2442	}
1573		2443
		2444	$map
		2445	};
		2446
		2447	if ($@) {
		2448	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2449	LOG llevError | logBacktrace, Carp::longmess $@;
		2450	}
		2451
		2452	if ($gen == $self->{_goto_generation}) {
		2453	delete $self->{_goto_generation};
1574	$self->leave_link ($map, $x, $y);	2454	$self->leave_link ($map, $x, $y);
		2455	}
		2456
		2457	$done->() if $done;
1575	})->prio (1);	2458	})->prio (1);
1576	}	2459	}
1577		2460
1578	=item $player_object->enter_exit ($exit_object)	2461	=item $player_object->enter_exit ($exit_object)
1579		2462
…		…
1581		2464
1582	sub parse_random_map_params {	2465	sub parse_random_map_params {
1583	my ($spec) = @_;	2466	my ($spec) = @_;
1584		2467
1585	my $rmp = { # defaults	2468	my $rmp = { # defaults
1586	xsize => 10,	2469	xsize => (cf::rndm 15, 40),
1587	ysize => 10,	2470	ysize => (cf::rndm 15, 40),
		2471	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2472	#layout => string,
1588	};	2473	};
1589		2474
1590	for (split /\n/, $spec) {	2475	for (split /\n/, $spec) {
1591	my ($k, $v) = split /\s+/, $_, 2;	2476	my ($k, $v) = split /\s+/, $_, 2;
1592		2477
…		…
1596	$rmp	2481	$rmp
1597	}	2482	}
1598		2483
1599	sub prepare_random_map {	2484	sub prepare_random_map {
1600	my ($exit) = @_;	2485	my ($exit) = @_;
		2486
		2487	my $guard = cf::lock_acquire "exit_prepare:$exit";
1601		2488
1602	# all this does is basically replace the /! path by	2489	# all this does is basically replace the /! path by
1603	# a new random map path (?random/...) with a seed	2490	# a new random map path (?random/...) with a seed
1604	# that depends on the exit object	2491	# that depends on the exit object
1605		2492
1606	my $rmp = parse_random_map_params $exit->msg;	2493	my $rmp = parse_random_map_params $exit->msg;
1607		2494
1608	if ($exit->map) {	2495	if ($exit->map) {
1609	$rmp->{region} = $exit->map->region_name;	2496	$rmp->{region} = $exit->region->name;
1610	$rmp->{origin_map} = $exit->map->path;	2497	$rmp->{origin_map} = $exit->map->path;
1611	$rmp->{origin_x} = $exit->x;	2498	$rmp->{origin_x} = $exit->x;
1612	$rmp->{origin_y} = $exit->y;	2499	$rmp->{origin_y} = $exit->y;
1613	}	2500	}
1614		2501
1615	$rmp->{random_seed} ||= $exit->random_seed;	2502	$rmp->{random_seed} ||= $exit->random_seed;
1616		2503
1617	my $data = cf::to_json $rmp;	2504	my $data = cf::to_json $rmp;
1618	my $md5 = Digest::MD5::md5_hex $data;	2505	my $md5 = Digest::MD5::md5_hex $data;
		2506	my $meta = "$RANDOMDIR/$md5.meta";
1619		2507
1620	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2508	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1621	aio_write $fh, 0, (length $data), $data, 0;	2509	aio_write $fh, 0, (length $data), $data, 0;
		2510	undef $fh;
		2511	aio_rename "$meta~", $meta;
1622		2512
1623	$exit->slaying ("?random/$md5");	2513	$exit->slaying ("?random/$md5");
1624	$exit->msg (undef);	2514	$exit->msg (undef);
1625	}	2515	}
1626	}	2516	}
…		…
1628	sub cf::object::player::enter_exit {	2518	sub cf::object::player::enter_exit {
1629	my ($self, $exit) = @_;	2519	my ($self, $exit) = @_;
1630		2520
1631	return unless $self->type == cf::PLAYER;	2521	return unless $self->type == cf::PLAYER;
1632		2522
		2523	if ($exit->slaying eq "/!") {
		2524	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2525	# the problem is that $exit might not survive long enough
		2526	# so it needs to be done right now, right here
		2527	cf::sync_job { prepare_random_map $exit };
		2528	}
		2529
		2530	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2531	my $hp = $exit->stats->hp;
		2532	my $sp = $exit->stats->sp;
		2533
1633	$self->enter_link;	2534	$self->enter_link;
1634		2535
1635	(Coro::async_pool {	2536	# if exit is damned, update players death & WoR home-position
		2537	$self->contr->savebed ($slaying, $hp, $sp)
		2538	if $exit->flag (FLAG_DAMNED);
		2539
		2540	(async {
1636	$self->deactivate_recursive; # just to be sure	2541	$self->deactivate_recursive; # just to be sure
1637	unless (eval {	2542	unless (eval {
1638	prepare_random_map $exit	2543	$self->goto ($slaying, $hp, $sp);
1639	if $exit->slaying eq "/!";
1640
1641	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1642	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1643		2544
1644	1;	2545	1;
1645	}) {	2546	}) {
1646	$self->message ("Something went wrong deep within the crossfire server. "	2547	$self->message ("Something went wrong deep within the crossfire server. "
1647	. "I'll try to bring you back to the map you were before. "	2548	. "I'll try to bring you back to the map you were before. "
1648	. "Please report this to the dungeon master",	2549	. "Please report this to the dungeon master!",
1649	cf::NDI_UNIQUE | cf::NDI_RED);	2550	cf::NDI_UNIQUE | cf::NDI_RED);
1650		2551
1651	warn "ERROR in enter_exit: $@";	2552	warn "ERROR in enter_exit: $@";
1652	$self->leave_link;	2553	$self->leave_link;
1653	}	2554	}
1654	})->prio (1);	2555	})->prio (1);
…		…
1667		2568
1668	sub cf::client::send_drawinfo {	2569	sub cf::client::send_drawinfo {
1669	my ($self, $text, $flags) = @_;	2570	my ($self, $text, $flags) = @_;
1670		2571
1671	utf8::encode $text;	2572	utf8::encode $text;
1672	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2573	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1673	}	2574	}
1674		2575
		2576	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2577
		2578	Send a drawinfo or msg packet to the client, formatting the msg for the
		2579	client if neccessary. C<$type> should be a string identifying the type of
		2580	the message, with C<log> being the default. If C<$color> is negative, suppress
		2581	the message unless the client supports the msg packet.
		2582
		2583	=cut
		2584
		2585	our %CHANNEL = (
		2586	"c/identify" => {
		2587	id => "identify",
		2588	title => "Identify",
		2589	reply => undef,
		2590	tooltip => "Items recently identified",
		2591	},
		2592	"c/examine" => {
		2593	id => "examine",
		2594	title => "Examine",
		2595	reply => undef,
		2596	tooltip => "Signs and other items you examined",
		2597	},
		2598	);
		2599
		2600	sub cf::client::send_msg {
		2601	my ($self, $channel, $msg, $color, @extra) = @_;
		2602
		2603	$msg = $self->pl->expand_cfpod ($msg);
		2604
		2605	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2606
		2607	# check predefined channels, for the benefit of C
		2608	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2609
		2610	if (ref $channel) {
		2611	# send meta info to client, if not yet sent
		2612	unless (exists $self->{channel}{$channel->{id}}) {
		2613	$self->{channel}{$channel->{id}} = $channel;
		2614	$self->ext_msg (channel_info => $channel)
		2615	if $self->can_msg;
		2616	}
		2617
		2618	$channel = $channel->{id};
		2619	}
		2620
		2621	return unless @extra || length $msg;
		2622
		2623	if ($self->can_msg) {
		2624	# default colour, mask it out
		2625	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2626	if $color & cf::NDI_DEF;
		2627
		2628	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2629	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2630	} else {
		2631	if ($color >= 0) {
		2632	# replace some tags by gcfclient-compatible ones
		2633	for ($msg) {
		2634	1 while
		2635	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2636	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2637	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2638	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2639	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2640	}
		2641
		2642	$color &= cf::NDI_COLOR_MASK;
		2643
		2644	utf8::encode $msg;
		2645
		2646	if (0 && $msg =~ /\[/) {
		2647	# COMMAND/INFO
		2648	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2649	} else {
		2650	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2651	$self->send_packet ("drawinfo $color $msg")
		2652	}
		2653	}
		2654	}
		2655	}
		2656
		2657	=item $client->ext_msg ($type, @msg)
		2658
		2659	Sends an ext event to the client.
		2660
		2661	=cut
		2662
		2663	sub cf::client::ext_msg($$@) {
		2664	my ($self, $type, @msg) = @_;
		2665
		2666	if ($self->extcmd == 2) {
		2667	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2668	} elsif ($self->extcmd == 1) { # TODO: remove
		2669	push @msg, msgtype => "event_$type";
		2670	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2671	}
		2672	}
		2673
		2674	=item $client->ext_reply ($msgid, @msg)
		2675
		2676	Sends an ext reply to the client.
		2677
		2678	=cut
		2679
		2680	sub cf::client::ext_reply($$@) {
		2681	my ($self, $id, @msg) = @_;
		2682
		2683	if ($self->extcmd == 2) {
		2684	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2685	} elsif ($self->extcmd == 1) {
		2686	#TODO: version 1, remove
		2687	unshift @msg, msgtype => "reply", msgid => $id;
		2688	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2689	}
		2690	}
1675		2691
1676	=item $success = $client->query ($flags, "text", \&cb)	2692	=item $success = $client->query ($flags, "text", \&cb)
1677		2693
1678	Queues a query to the client, calling the given callback with	2694	Queues a query to the client, calling the given callback with
1679	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2695	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1680	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2696	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1681		2697
1682	Queries can fail, so check the return code. Or don't, as queries will become	2698	Queries can fail, so check the return code. Or don't, as queries will
1683	reliable at some point in the future.	2699	become reliable at some point in the future.
1684		2700
1685	=cut	2701	=cut
1686		2702
1687	sub cf::client::query {	2703	sub cf::client::query {
1688	my ($self, $flags, $text, $cb) = @_;	2704	my ($self, $flags, $text, $cb) = @_;
…		…
1696	utf8::encode $text;	2712	utf8::encode $text;
1697	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1698		2714
1699	$self->send_packet ($self->{query_queue}[0][0])	2715	$self->send_packet ($self->{query_queue}[0][0])
1700	if @{ $self->{query_queue} } == 1;	2716	if @{ $self->{query_queue} } == 1;
		2717
		2718	1
1701	}	2719	}
1702		2720
1703	cf::client->attach (	2721	cf::client->attach (
		2722	on_connect => sub {
		2723	my ($ns) = @_;
		2724
		2725	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2726	},
1704	on_reply => sub {	2727	on_reply => sub {
1705	my ($ns, $msg) = @_;	2728	my ($ns, $msg) = @_;
1706		2729
1707	# this weird shuffling is so that direct followup queries	2730	# this weird shuffling is so that direct followup queries
1708	# get handled first	2731	# get handled first
1709	my $queue = delete $ns->{query_queue}	2732	my $queue = delete $ns->{query_queue}
1710	or return; # be conservative, not sure how that can happen, but we saw a crash here	2733	or return; # be conservative, not sure how that can happen, but we saw a crash here
1711		2734
1712	(shift @$queue)->[1]->($msg);	2735	(shift @$queue)->[1]->($msg);
		2736	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1713		2737
1714	push @{ $ns->{query_queue} }, @$queue;	2738	push @{ $ns->{query_queue} }, @$queue;
1715		2739
1716	if (@{ $ns->{query_queue} } == @$queue) {	2740	if (@{ $ns->{query_queue} } == @$queue) {
1717	if (@$queue) {	2741	if (@$queue) {
…		…
1719	} else {	2743	} else {
1720	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2744	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1721	}	2745	}
1722	}	2746	}
1723	},	2747	},
		2748	on_exticmd => sub {
		2749	my ($ns, $buf) = @_;
		2750
		2751	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2752
		2753	if (ref $msg) {
		2754	my ($type, $reply, @payload) =
		2755	"ARRAY" eq ref $msg
		2756	? @$msg
		2757	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2758
		2759	my @reply;
		2760
		2761	if (my $cb = $EXTICMD{$type}) {
		2762	@reply = $cb->($ns, @payload);
		2763	}
		2764
		2765	$ns->ext_reply ($reply, @reply)
		2766	if $reply;
		2767
		2768	} else {
		2769	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2770	}
		2771
		2772	cf::override;
		2773	},
1724	);	2774	);
1725		2775
1726	=item $client->coro (\&cb)	2776	=item $client->async (\&cb)
1727		2777
1728	Create a new coroutine, running the specified callback. The coroutine will	2778	Create a new coroutine, running the specified callback. The coroutine will
1729	be automatically cancelled when the client gets destroyed (e.g. on logout,	2779	be automatically cancelled when the client gets destroyed (e.g. on logout,
1730	or loss of connection).	2780	or loss of connection).
1731		2781
1732	=cut	2782	=cut
1733		2783
1734	sub cf::client::coro {	2784	sub cf::client::async {
1735	my ($self, $cb) = @_;	2785	my ($self, $cb) = @_;
1736		2786
1737	my $coro = &Coro::async_pool ($cb);	2787	my $coro = &Coro::async ($cb);
1738		2788
1739	$coro->on_destroy (sub {	2789	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	2790	delete $self->{_coro}{$coro+0};
1741	});	2791	});
1742		2792
…		…
1769	our $safe = new Safe "safe";	2819	our $safe = new Safe "safe";
1770	our $safe_hole = new Safe::Hole;	2820	our $safe_hole = new Safe::Hole;
1771		2821
1772	$SIG{FPE} = 'IGNORE';	2822	$SIG{FPE} = 'IGNORE';
1773		2823
1774	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2824	$safe->permit_only (Opcode::opset qw(
		2825	:base_core :base_mem :base_orig :base_math
		2826	grepstart grepwhile mapstart mapwhile
		2827	sort time
		2828	));
1775		2829
1776	# here we export the classes and methods available to script code	2830	# here we export the classes and methods available to script code
1777		2831
1778	=pod	2832	=pod
1779		2833
1780	The following fucntions and emthods are available within a safe environment:	2834	The following functions and methods are available within a safe environment:
1781		2835
1782	cf::object contr pay_amount pay_player map	2836	cf::object
		2837	contr pay_amount pay_player map x y force_find force_add
		2838	insert remove name archname title slaying race decrease_ob_nr
		2839
1783	cf::object::player player	2840	cf::object::player
1784	cf::player peaceful	2841	player
1785	cf::map trigger	2842
		2843	cf::player
		2844	peaceful
		2845
		2846	cf::map
		2847	trigger
1786		2848
1787	=cut	2849	=cut
1788		2850
1789	for (	2851	for (
1790	["cf::object" => qw(contr pay_amount pay_player map)],	2852	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2853	insert remove inv name archname title slaying race
		2854	decrease_ob_nr)],
1791	["cf::object::player" => qw(player)],	2855	["cf::object::player" => qw(player)],
1792	["cf::player" => qw(peaceful)],	2856	["cf::player" => qw(peaceful)],
1793	["cf::map" => qw(trigger)],	2857	["cf::map" => qw(trigger)],
1794	) {	2858	) {
1795	no strict 'refs';	2859	no strict 'refs';
…		…
1866	=back	2930	=back
1867		2931
1868	=cut	2932	=cut
1869		2933
1870	#############################################################################	2934	#############################################################################
		2935	# the server's init and main functions
1871		2936
1872	=head2 EXTENSION DATABASE SUPPORT	2937	sub load_facedata($) {
		2938	my ($path) = @_;
1873		2939
1874	Crossfire maintains a very simple database for extension use. It can	2940	# HACK to clear player env face cache, we need some signal framework
1875	currently store anything that can be serialised using Storable, which	2941	# for this (global event?)
1876	excludes objects.	2942	%ext::player_env::MUSIC_FACE_CACHE = ();
1877		2943
1878	The parameter C<$family> should best start with the name of the extension	2944	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1879	using it, it should be unique.
1880		2945
1881	=over 4	2946	warn "loading facedata from $path\n";
1882		2947
1883	=item $hashref = cf::db_get $family	2948	my $facedata;
		2949	0 < aio_load $path, $facedata
		2950	or die "$path: $!";
1884		2951
1885	Return a hashref for use by the extension C<$family>, which can be	2952	$facedata = Coro::Storable::thaw $facedata;
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888		2953
1889	=item $value = cf::db_get $family => $key	2954	$facedata->{version} == 2
		2955	or cf::cleanup "$path: version mismatch, cannot proceed.";
1890		2956
1891	Returns a single value from the database	2957	# patch in the exptable
1892		2958	$facedata->{resource}{"res/exp_table"} = {
1893	=item cf::db_put $family => $hashref	2959	type => FT_RSRC,
1894		2960	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1895	Stores the given family hashref into the database. Updates are delayed, if
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1897
1898	=item cf::db_put $family => $key => $value
1899
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910
1911	=cut
1912
1913	our $DB;
1914
1915	{
1916	my $path = cf::localdir . "/database.pst";
1917
1918	sub db_load() {
1919	$DB = stat $path ? Storable::retrieve $path : { };
1920	}
1921
1922	my $pid;
1923
1924	sub db_save() {
1925	waitpid $pid, 0 if $pid;
1926	if (0 == ($pid = fork)) {
1927	$DB->{_meta}{version} = 1;
1928	Storable::nstore $DB, "$path~";
1929	rename "$path~", $path;
1930	cf::_exit 0 if defined $pid;
1931	}
1932	}
1933
1934	my $dirty;
1935
1936	sub db_sync() {
1937	db_save if $dirty;
1938	undef $dirty;
1939	}
1940
1941	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1942	db_sync;
1943	});	2961	};
		2962	cf::cede_to_tick;
1944		2963
1945	sub db_dirty() {
1946	$dirty = 1;
1947	$idle->start;
1948	}	2964	{
		2965	my $faces = $facedata->{faceinfo};
1949		2966
1950	sub db_get($;$) {	2967	while (my ($face, $info) = each %$faces) {
1951	@_ >= 2	2968	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1952	? $DB->{$_[0]}{$_[1]}	2969	cf::face::set_visibility $idx, $info->{visibility};
1953	: ($DB->{$_[0]} ||= { })	2970	cf::face::set_magicmap $idx, $info->{magicmap};
1954	}	2971	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2972	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1955		2973
1956	sub db_put($$;$) {	2974	cf::cede_to_tick;
1957	if (@_ >= 3) {
1958	$DB->{$_[0]}{$_[1]} = $_[2];
1959	} else {
1960	$DB->{$_[0]} = $_[1];
1961	}
1962	db_dirty;
1963	}
1964
1965	cf::global->attach (
1966	prio => 10000,
1967	on_cleanup => sub {
1968	db_sync;
1969	},	2975	}
1970	);
1971	}
1972		2976
1973	#############################################################################	2977	while (my ($face, $info) = each %$faces) {
1974	# the server's main()	2978	next unless $info->{smooth};
		2979	my $idx = cf::face::find $face
		2980	or next;
		2981	if (my $smooth = cf::face::find $info->{smooth}) {
		2982	cf::face::set_smooth $idx, $smooth;
		2983	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2984	} else {
		2985	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2986	}
1975		2987
1976	sub cfg_load {	2988	cf::cede_to_tick;
		2989	}
		2990	}
		2991
		2992	{
		2993	my $anims = $facedata->{animinfo};
		2994
		2995	while (my ($anim, $info) = each %$anims) {
		2996	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2997	cf::cede_to_tick;
		2998	}
		2999
		3000	cf::anim::invalidate_all; # d'oh
		3001	}
		3002
		3003	{
		3004	# TODO: for gcfclient pleasure, we should give resources
		3005	# that gcfclient doesn't grok a >10000 face index.
		3006	my $res = $facedata->{resource};
		3007
		3008	my $soundconf = delete $res->{"res/sound.conf"};
		3009
		3010	while (my ($name, $info) = each %$res) {
		3011	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3012	my $data;
		3013
		3014	if ($info->{type} & 1) {
		3015	# prepend meta info
		3016
		3017	my $meta = $enc->encode ({
		3018	name => $name,
		3019	%{ $info->{meta} || {} },
		3020	});
		3021
		3022	$data = pack "(w/a*)*", $meta, $info->{data};
		3023	} else {
		3024	$data = $info->{data};
		3025	}
		3026
		3027	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3028	cf::face::set_type $idx, $info->{type};
		3029
		3030	cf::cede_to_tick;
		3031	}
		3032
		3033	if ($soundconf) {
		3034	$soundconf = $enc->decode (delete $soundconf->{data});
		3035
		3036	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3037	my $sound = $soundconf->{compat}[$_]
		3038	or next;
		3039
		3040	my $face = cf::face::find "sound/$sound->[1]";
		3041	cf::sound::set $sound->[0] => $face;
		3042	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3043	}
		3044
		3045	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3046	my $face = cf::face::find "sound/$v";
		3047	cf::sound::set $k => $face;
		3048	}
		3049	}
		3050	}
		3051
		3052	1
		3053	}
		3054
		3055	register_exticmd fx_want => sub {
		3056	my ($ns, $want) = @_;
		3057
		3058	while (my ($k, $v) = each %$want) {
		3059	$ns->fx_want ($k, $v);
		3060	}
		3061	};
		3062
		3063	sub reload_regions {
		3064	# HACK to clear player env face cache, we need some signal framework
		3065	# for this (global event?)
		3066	%ext::player_env::MUSIC_FACE_CACHE = ();
		3067
		3068	load_resource_file "$MAPDIR/regions"
		3069	or die "unable to load regions file\n";
		3070
		3071	for (cf::region::list) {
		3072	$_->{match} = qr/$_->{match}/
		3073	if exists $_->{match};
		3074	}
		3075	}
		3076
		3077	sub reload_facedata {
		3078	load_facedata "$DATADIR/facedata"
		3079	or die "unable to load facedata\n";
		3080	}
		3081
		3082	sub reload_archetypes {
		3083	load_resource_file "$DATADIR/archetypes"
		3084	or die "unable to load archetypes\n";
		3085	#d# NEED to laod twice to resolve forward references
		3086	# this really needs to be done in an extra post-pass
		3087	# (which needs to be synchronous, so solve it differently)
		3088	load_resource_file "$DATADIR/archetypes"
		3089	or die "unable to load archetypes\n";
		3090	}
		3091
		3092	sub reload_treasures {
		3093	load_resource_file "$DATADIR/treasures"
		3094	or die "unable to load treasurelists\n";
		3095	}
		3096
		3097	sub reload_resources {
		3098	warn "reloading resource files...\n";
		3099
		3100	reload_regions;
		3101	reload_facedata;
		3102	#reload_archetypes;#d#
		3103	reload_archetypes;
		3104	reload_treasures;
		3105
		3106	warn "finished reloading resource files\n";
		3107	}
		3108
		3109	sub init {
		3110	reload_resources;
		3111	}
		3112
		3113	sub reload_config {
1977	open my $fh, "<:utf8", cf::confdir . "/config"	3114	open my $fh, "<:utf8", "$CONFDIR/config"
1978	or return;	3115	or return;
1979		3116
1980	local $/;	3117	local $/;
1981	*CFG = YAML::Syck::Load <$fh>;	3118	*CFG = YAML::Syck::Load <$fh>;
1982		3119
1983	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3120	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1984		3121
		3122	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3123	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3124
1985	if (exists $CFG{mlockall}) {	3125	if (exists $CFG{mlockall}) {
1986	eval {	3126	eval {
1987	$CFG{mlockall} ? &mlockall : &munlockall	3127	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1988	and die "WARNING: m(un)lockall failed: $!\n";	3128	and die "WARNING: m(un)lockall failed: $!\n";
1989	};	3129	};
1990	warn $@ if $@;	3130	warn $@ if $@;
1991	}	3131	}
1992	}	3132	}
1993		3133
1994	sub main {	3134	sub main {
1995	# we must not ever block the main coroutine	3135	# we must not ever block the main coroutine
1996	local $Coro::idle = sub {	3136	local $Coro::idle = sub {
1997	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3137	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1998	(Coro::unblock_sub {	3138	(async {
1999	Event::one_event;	3139	Event::one_event;
2000	})->();	3140	})->prio (Coro::PRIO_MAX);
2001	};	3141	};
2002		3142
2003	cfg_load;	3143	reload_config;
2004	db_load;	3144	db_init;
2005	load_extensions;	3145	load_extensions;
		3146
		3147	$TICK_WATCHER->start;
2006	Event::loop;	3148	Event::loop;
2007	}	3149	}
2008		3150
2009	#############################################################################	3151	#############################################################################
2010	# initialisation	3152	# initialisation and cleanup
2011		3153
		3154	# install some emergency cleanup handlers
		3155	BEGIN {
		3156	for my $signal (qw(INT HUP TERM)) {
		3157	Event->signal (
		3158	reentrant => 0,
		3159	data => WF_AUTOCANCEL,
		3160	signal => $signal,
		3161	prio => 0,
		3162	cb => sub {
		3163	cf::cleanup "SIG$signal";
		3164	},
		3165	);
		3166	}
		3167	}
		3168
		3169	sub write_runtime {
		3170	my $runtime = "$LOCALDIR/runtime";
		3171
		3172	# first touch the runtime file to show we are still running:
		3173	# the fsync below can take a very very long time.
		3174
		3175	IO::AIO::aio_utime $runtime, undef, undef;
		3176
		3177	my $guard = cf::lock_acquire "write_runtime";
		3178
		3179	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3180	or return;
		3181
		3182	my $value = $cf::RUNTIME + 90 + 10;
		3183	# 10 is the runtime save interval, for a monotonic clock
		3184	# 60 allows for the watchdog to kill the server.
		3185
		3186	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3187	and return;
		3188
		3189	# always fsync - this file is important
		3190	aio_fsync $fh
		3191	and return;
		3192
		3193	# touch it again to show we are up-to-date
		3194	aio_utime $fh, undef, undef;
		3195
		3196	close $fh
		3197	or return;
		3198
		3199	aio_rename "$runtime~", $runtime
		3200	and return;
		3201
		3202	warn "runtime file written.\n";
		3203
		3204	1
		3205	}
		3206
		3207	sub emergency_save() {
		3208	my $freeze_guard = cf::freeze_mainloop;
		3209
		3210	warn "enter emergency perl save\n";
		3211
		3212	cf::sync_job {
		3213	# use a peculiar iteration method to avoid tripping on perl
		3214	# refcount bugs in for. also avoids problems with players
		3215	# and maps saved/destroyed asynchronously.
		3216	warn "begin emergency player save\n";
		3217	for my $login (keys %cf::PLAYER) {
		3218	my $pl = $cf::PLAYER{$login} or next;
		3219	$pl->valid or next;
		3220	$pl->save;
		3221	}
		3222	warn "end emergency player save\n";
		3223
		3224	warn "begin emergency map save\n";
		3225	for my $path (keys %cf::MAP) {
		3226	my $map = $cf::MAP{$path} or next;
		3227	$map->valid or next;
		3228	$map->save;
		3229	}
		3230	warn "end emergency map save\n";
		3231
		3232	warn "begin emergency database checkpoint\n";
		3233	BDB::db_env_txn_checkpoint $DB_ENV;
		3234	warn "end emergency database checkpoint\n";
		3235	};
		3236
		3237	warn "leave emergency perl save\n";
		3238	}
		3239
		3240	sub post_cleanup {
		3241	my ($make_core) = @_;
		3242
		3243	warn Carp::longmess "post_cleanup backtrace"
		3244	if $make_core;
		3245	}
		3246
2012	sub reload() {	3247	sub do_reload_perl() {
2013	# can/must only be called in main	3248	# can/must only be called in main
2014	if ($Coro::current != $Coro::main) {	3249	if ($Coro::current != $Coro::main) {
2015	warn "can only reload from main coroutine\n";	3250	warn "can only reload from main coroutine";
2016	return;	3251	return;
2017	}	3252	}
2018		3253
2019	warn "reloading...";	3254	warn "reloading...";
2020		3255
2021	my $guard = freeze_mainloop;	3256	warn "entering sync_job";
		3257
		3258	cf::sync_job {
		3259	cf::write_runtime; # external watchdog should not bark
2022	cf::emergency_save;	3260	cf::emergency_save;
		3261	cf::write_runtime; # external watchdog should not bark
2023		3262
2024	eval {	3263	warn "syncing database to disk";
		3264	BDB::db_env_txn_checkpoint $DB_ENV;
		3265
2025	# if anything goes wrong in here, we should simply crash as we already saved	3266	# if anything goes wrong in here, we should simply crash as we already saved
2026		3267
2027	# cancel all watchers	3268	warn "cancelling all WF_AUTOCANCEL watchers";
2028	for (Event::all_watchers) {	3269	for (Event::all_watchers) {
2029	$_->cancel if $_->data & WF_AUTOCANCEL;	3270	$_->cancel if $_->data & WF_AUTOCANCEL;
2030	}	3271	}
2031		3272
		3273	warn "flushing outstanding aio requests";
		3274	for (;;) {
		3275	BDB::flush;
		3276	IO::AIO::flush;
		3277	Coro::cede;
		3278	last unless IO::AIO::nreqs || BDB::nreqs;
		3279	warn "iterate...";
		3280	}
		3281
		3282	++$RELOAD;
		3283
2032	# cancel all extension coros	3284	warn "cancelling all extension coros";
2033	$_->cancel for values %EXT_CORO;	3285	$_->cancel for values %EXT_CORO;
2034	%EXT_CORO = ();	3286	%EXT_CORO = ();
2035		3287
2036	# unload all extensions	3288	warn "removing commands";
2037	for (@exts) {	3289	%COMMAND = ();
		3290
		3291	warn "removing ext/exti commands";
		3292	%EXTCMD = ();
		3293	%EXTICMD = ();
		3294
		3295	warn "unloading/nuking all extensions";
		3296	for my $pkg (@EXTS) {
2038	warn "unloading <$_>";	3297	warn "... unloading $pkg";
2039	unload_extension $_;	3298
		3299	if (my $cb = $pkg->can ("unload")) {
		3300	eval {
		3301	$cb->($pkg);
		3302	1
		3303	} or warn "$pkg unloaded, but with errors: $@";
2040	}	3304	}
2041		3305
		3306	warn "... nuking $pkg";
		3307	Symbol::delete_package $pkg;
		3308	}
		3309
2042	# unload all modules loaded from $LIBDIR	3310	warn "unloading all perl modules loaded from $LIBDIR";
2043	while (my ($k, $v) = each %INC) {	3311	while (my ($k, $v) = each %INC) {
2044	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3312	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2045		3313
2046	warn "removing <$k>";	3314	warn "... unloading $k";
2047	delete $INC{$k};	3315	delete $INC{$k};
2048		3316
2049	$k =~ s/\.pm$//;	3317	$k =~ s/\.pm$//;
2050	$k =~ s/\//::/g;	3318	$k =~ s/\//::/g;
2051		3319
…		…
2054	}	3322	}
2055		3323
2056	Symbol::delete_package $k;	3324	Symbol::delete_package $k;
2057	}	3325	}
2058		3326
2059	# sync database to disk
2060	cf::db_sync;
2061	IO::AIO::flush;
2062
2063	# get rid of safe::, as good as possible	3327	warn "getting rid of safe::, as good as possible";
2064	Symbol::delete_package "safe::$_"	3328	Symbol::delete_package "safe::$_"
2065	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3329	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2066		3330
2067	# remove register_script_function callbacks
2068	# TODO
2069
2070	# unload cf.pm "a bit"	3331	warn "unloading cf.pm \"a bit\"";
2071	delete $INC{"cf.pm"};	3332	delete $INC{"cf.pm"};
		3333	delete $INC{"cf/pod.pm"};
2072		3334
2073	# don't, removes xs symbols, too,	3335	# don't, removes xs symbols, too,
2074	# and global variables created in xs	3336	# and global variables created in xs
2075	#Symbol::delete_package __PACKAGE__;	3337	#Symbol::delete_package __PACKAGE__;
2076		3338
2077	# reload cf.pm	3339	warn "unload completed, starting to reload now";
		3340
2078	warn "reloading cf.pm";	3341	warn "reloading cf.pm";
2079	require cf;	3342	require cf;
2080	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3343	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2081		3344
2082	# load config and database again	3345	warn "loading config and database again";
2083	cf::cfg_load;	3346	cf::reload_config;
2084	cf::db_load;
2085		3347
2086	# load extensions
2087	warn "load extensions";	3348	warn "loading extensions";
2088	cf::load_extensions;	3349	cf::load_extensions;
2089		3350
2090	# reattach attachments to objects	3351	warn "reattaching attachments to objects/players";
2091	warn "reattach";	3352	_global_reattach; # objects, sockets
2092	_global_reattach;	3353	warn "reattaching attachments to maps";
2093	};	3354	reattach $_ for values %MAP;
		3355	warn "reattaching attachments to players";
		3356	reattach $_ for values %PLAYER;
2094		3357
2095	if ($@) {	3358	warn "leaving sync_job";
		3359
		3360	1
		3361	} or do {
2096	warn $@;	3362	warn $@;
2097	warn "error while reloading, exiting.";	3363	warn "error while reloading, exiting.";
2098	exit 1;	3364	exit 1;
2099	}	3365	};
2100		3366
2101	warn "reloaded successfully";	3367	warn "reloaded";
2102	};	3368	};
2103		3369
2104	#############################################################################	3370	our $RELOAD_WATCHER; # used only during reload
2105		3371
2106	unless ($LINK_MAP) {	3372	sub reload_perl() {
2107	$LINK_MAP = cf::map::new;	3373	# doing reload synchronously and two reloads happen back-to-back,
		3374	# coro crashes during coro_state_free->destroy here.
2108		3375
2109	$LINK_MAP->width (41);	3376	$RELOAD_WATCHER ||= Event->timer (
2110	$LINK_MAP->height (41);	3377	reentrant => 0,
2111	$LINK_MAP->alloc;
2112	$LINK_MAP->path ("{link}");
2113	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2114	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2115
2116	# dirty hack because... archetypes are not yet loaded
2117	Event->timer (
2118	after => 2,	3378	after => 0,
		3379	data => WF_AUTOCANCEL,
2119	cb => sub {	3380	cb => sub {
2120	$_[0]->w->cancel;	3381	do_reload_perl;
2121		3382	undef $RELOAD_WATCHER;
2122	# provide some exits "home"
2123	my $exit = cf::object::new "exit";
2124
2125	$exit->slaying ($EMERGENCY_POSITION->[0]);
2126	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2127	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2128
2129	$LINK_MAP->insert ($exit->clone, 19, 19);
2130	$LINK_MAP->insert ($exit->clone, 19, 20);
2131	$LINK_MAP->insert ($exit->clone, 19, 21);
2132	$LINK_MAP->insert ($exit->clone, 20, 19);
2133	$LINK_MAP->insert ($exit->clone, 20, 21);
2134	$LINK_MAP->insert ($exit->clone, 21, 19);
2135	$LINK_MAP->insert ($exit->clone, 21, 20);
2136	$LINK_MAP->insert ($exit->clone, 21, 21);
2137
2138	$exit->destroy;
2139	});	3383	},
2140		3384	);
2141	$LINK_MAP->{deny_save} = 1;
2142	$LINK_MAP->{deny_reset} = 1;
2143
2144	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2145	}	3385	}
2146
2147	register "<global>", __PACKAGE__;
2148		3386
2149	register_command "reload" => sub {	3387	register_command "reload" => sub {
2150	my ($who, $arg) = @_;	3388	my ($who, $arg) = @_;
2151		3389
2152	if ($who->flag (FLAG_WIZ)) {	3390	if ($who->flag (FLAG_WIZ)) {
2153	$who->message ("start of reload.");
2154	reload;
2155	$who->message ("end of reload.");	3391	$who->message ("reloading server.");
		3392	async { reload_perl };
2156	}	3393	}
2157	};	3394	};
2158		3395
2159	unshift @INC, $LIBDIR;	3396	unshift @INC, $LIBDIR;
2160		3397
		3398	my $bug_warning = 0;
		3399
		3400	our @WAIT_FOR_TICK;
		3401	our @WAIT_FOR_TICK_BEGIN;
		3402
		3403	sub wait_for_tick {
		3404	return unless $TICK_WATCHER->is_active;
		3405	return if $Coro::current == $Coro::main;
		3406
		3407	my $signal = new Coro::Signal;
		3408	push @WAIT_FOR_TICK, $signal;
		3409	$signal->wait;
		3410	}
		3411
		3412	sub wait_for_tick_begin {
		3413	return unless $TICK_WATCHER->is_active;
		3414	return if $Coro::current == $Coro::main;
		3415
		3416	my $signal = new Coro::Signal;
		3417	push @WAIT_FOR_TICK_BEGIN, $signal;
		3418	$signal->wait;
		3419	}
		3420
		3421	my $min = 1e6;#d#
		3422	my $avg = 10;
2161	$TICK_WATCHER = Event->timer (	3423	$TICK_WATCHER = Event->timer (
2162	reentrant => 0,	3424	reentrant => 0,
		3425	parked => 1,
2163	prio => 0,	3426	prio => 0,
2164	at => $NEXT_TICK || $TICK,	3427	at => $NEXT_TICK || $TICK,
2165	data => WF_AUTOCANCEL,	3428	data => WF_AUTOCANCEL,
2166	cb => sub {	3429	cb => sub {
		3430	if ($Coro::current != $Coro::main) {
		3431	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3432	unless ++$bug_warning > 10;
		3433	return;
		3434	}
		3435
		3436	$NOW = $tick_start = Event::time;
		3437
2167	cf::server_tick; # one server iteration	3438	cf::server_tick; # one server iteration
		3439
		3440	0 && sync_job {#d#
		3441	for(1..10) {
		3442	my $t = Event::time;
		3443	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3444	or die;
		3445
		3446	$map->width (50);
		3447	$map->height (50);
		3448	$map->alloc;
		3449	$map->_load_objects ("/tmp/x.map", 1); #TODO: does not work
		3450	my $t = Event::time - $t;
		3451
		3452	#next unless $t < 0.0013;#d#
		3453	if ($t < $min) {
		3454	$min = $t;
		3455	}
		3456	$avg = $avg * 0.99 + $t * 0.01;
		3457	}
		3458	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3459	exit 0;
		3460	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3461	};
		3462
2168	$RUNTIME += $TICK;	3463	$RUNTIME += $TICK;
2169	$NEXT_TICK += $TICK;	3464	$NEXT_TICK += $TICK;
2170		3465
		3466	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3467	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3468	Coro::async_pool {
		3469	write_runtime
		3470	or warn "ERROR: unable to write runtime file: $!";
		3471	};
		3472	}
		3473
		3474	# my $AFTER = Event::time;
		3475	# warn $AFTER - $NOW;#d#
		3476
		3477	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3478	$sig->send;
		3479	}
		3480	while (my $sig = shift @WAIT_FOR_TICK) {
		3481	$sig->send;
		3482	}
		3483
		3484	$NOW = Event::time;
		3485
2171	# if we are delayed by four ticks or more, skip them all	3486	# if we are delayed by four ticks or more, skip them all
2172	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3487	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2173		3488
2174	$TICK_WATCHER->at ($NEXT_TICK);	3489	$TICK_WATCHER->at ($NEXT_TICK);
2175	$TICK_WATCHER->start;	3490	$TICK_WATCHER->start;
		3491
		3492	$LOAD = ($NOW - $tick_start) / $TICK;
		3493	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3494
		3495	_post_tick;
		3496
		3497
2176	},	3498	},
2177	);	3499	);
2178		3500
		3501	{
2179	IO::AIO::max_poll_time $TICK * 0.2;	3502	BDB::max_poll_time $TICK * 0.1;
2180		3503	$BDB_POLL_WATCHER = Event->io (
2181	Event->io (	3504	reentrant => 0,
2182	fd => IO::AIO::poll_fileno,	3505	fd => BDB::poll_fileno,
2183	poll => 'r',	3506	poll => 'r',
2184	prio => 5,	3507	prio => 0,
2185	data => WF_AUTOCANCEL,
2186	cb => \&IO::AIO::poll_cb,
2187	);
2188
2189	Event->timer (
2190	data => WF_AUTOCANCEL,	3508	data => WF_AUTOCANCEL,
2191	after => 0,	3509	cb => \&BDB::poll_cb,
2192	interval => 10,	3510	);
2193	cb => sub {	3511	BDB::min_parallel 8;
2194	(Coro::unblock_sub {	3512
2195	write_runtime	3513	BDB::set_sync_prepare {
2196	or warn "ERROR: unable to write runtime file: $!";	3514	my $status;
		3515	my $current = $Coro::current;
		3516	(
		3517	sub {
		3518	$status = $!;
		3519	$current->ready; undef $current;
		3520	},
		3521	sub {
		3522	Coro::schedule while defined $current;
		3523	$! = $status;
		3524	},
		3525	)
		3526	};
		3527
		3528	unless ($DB_ENV) {
		3529	$DB_ENV = BDB::db_env_create;
		3530
		3531	cf::sync_job {
		3532	eval {
		3533	BDB::db_env_open
		3534	$DB_ENV,
		3535	$BDBDIR,
		3536	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3537	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3538	0666;
		3539
		3540	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3541
		3542	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3543	$DB_ENV->set_lk_detect;
		3544	};
		3545
		3546	cf::cleanup "db_env_open(db): $@" if $@;
2197	})->();	3547	};
2198	},	3548	}
2199	);	3549	}
		3550
		3551	{
		3552	IO::AIO::min_parallel 8;
		3553
		3554	undef $Coro::AIO::WATCHER;
		3555	IO::AIO::max_poll_time $TICK * 0.1;
		3556	$AIO_POLL_WATCHER = Event->io (
		3557	reentrant => 0,
		3558	data => WF_AUTOCANCEL,
		3559	fd => IO::AIO::poll_fileno,
		3560	poll => 'r',
		3561	prio => 6,
		3562	cb => \&IO::AIO::poll_cb,
		3563	);
		3564	}
		3565
		3566	my $_log_backtrace;
		3567
		3568	sub _log_backtrace {
		3569	my ($msg, @addr) = @_;
		3570
		3571	$msg =~ s/\n//;
		3572
		3573	# limit the # of concurrent backtraces
		3574	if ($_log_backtrace < 2) {
		3575	++$_log_backtrace;
		3576	async {
		3577	my @bt = fork_call {
		3578	@addr = map { sprintf "%x", $_ } @addr;
		3579	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3580	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3581	or die "addr2line: $!";
		3582
		3583	my @funcs;
		3584	my @res = <$fh>;
		3585	chomp for @res;
		3586	while (@res) {
		3587	my ($func, $line) = splice @res, 0, 2, ();
		3588	push @funcs, "[$func] $line";
		3589	}
		3590
		3591	@funcs
		3592	};
		3593
		3594	LOG llevInfo, "[ABT] $msg\n";
		3595	LOG llevInfo, "[ABT] $_\n" for @bt;
		3596	--$_log_backtrace;
		3597	};
		3598	} else {
		3599	LOG llevInfo, "[ABT] $msg\n";
		3600	LOG llevInfo, "[ABT] [suppressed]\n";
		3601	}
		3602	}
		3603
		3604	# load additional modules
		3605	use cf::pod;
2200		3606
2201	END { cf::emergency_save }	3607	END { cf::emergency_save }
2202		3608
2203	1	3609	1
2204		3610

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