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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 2007 UTC vs.
Revision 1.379 by root, Thu Oct 4 23:59:07 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 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 $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	97	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	98
		99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
56		105
57	binmode STDOUT;	106	binmode STDOUT;
58	binmode STDERR;	107	binmode STDERR;
59		108
60	# read virtual server time, if available	109	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
65	}	114	}
66		115
67	mkdir cf::localdir;	116	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		118
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
76		122
77	#############################################################################	123	#############################################################################
78		124
79	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
80		126
…		…
87	=item $cf::RUNTIME	133	=item $cf::RUNTIME
88		134
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	136	every server tick.
91		137
92	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		141
94	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
96		146
97	=item $cf::NOW	147	=item $cf::NOW
98		148
99	The time of the last (current) server tick.	149	The time of the last (current) server tick.
100		150
101	=item $cf::TICK	151	=item $cf::TICK
102		152
103	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
104		164
105	=item %cf::CFG	165	=item %cf::CFG
106		166
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
109		181
110	=back	182	=back
111		183
112	=cut	184	=cut
113		185
114	BEGIN {	186	BEGIN {
115	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	188	my $msg = join "", @_;
117	utf8::encode $msg;
118		189
119	$msg .= "\n"	190	$msg .= "\n"
120	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
121		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
122	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
123	};	196	};
124	}	197	}
125		198
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		206
133	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	208	# within the Safe compartment.
135	for my $pkg (qw(	209	for my $pkg (qw(
136	cf::global cf::attachable	210	cf::global cf::attachable
…		…
145		219
146	$Event::DIED = sub {	220	$Event::DIED = sub {
147	warn "error in event callback: @_";	221	warn "error in event callback: @_";
148	};	222	};
149		223
150	my %ext_pkg;	224	#############################################################################
151	my @exts;
152	my @hook;
153		225
154	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
155		227
156	=over 4	228	=over 4
157		229
158	=cut	230	=item dumpval $ref
159		231
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
161		252
162	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
163		254
164	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
165		256
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
174		258
175	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
176		260
177	=cut	261	=cut
178		262
179	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
181	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
183		267
184	=item cf::lock_wait $string	268	=item cf::lock_wait $string
185		269
186	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
187		271
…		…
190	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
193	returned.	277	returned.
194		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
195	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
197		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
198	=cut	289	=cut
199		290
200	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
201		293
202	sub lock_wait($) {	294	sub lock_wait($) {
203	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
204		301
205	# wait for lock, if any	302	# wait for lock, if any
206	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	305	Coro::schedule;
…		…
214		311
215	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
216	lock_wait $key;	313	lock_wait $key;
217		314
218	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
219		317
220	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
223	}	322	}
224	}	323	}
225		324
226	=item cf::async { BLOCK }	325	sub lock_active($) {
227
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229	error instead of exiting the server in case of a problem.
230
231	=cut
232
233	sub async(&) {
234	my ($cb) = @_;	326	my ($key) = @_;
235		327
236	Coro::async {	328	! ! $LOCK{$key}
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}	329	}
241		330
242	sub freeze_mainloop {	331	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
244		333
245	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
246	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
247	$guard	338	$guard
248	}	339	}
249		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
		399	=item cf::async { BLOCK }
		400
		401	Currently the same as Coro::async_pool, meaning you cannot use
		402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		403	thing you are allowed to do is call C<prio> on it.
		404
		405	=cut
		406
		407	BEGIN { *async = \&Coro::async_pool }
		408
250	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
251		410
252	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Crossfire TRT is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
255		415
256	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
259	fast or be very important.	419	fast or be very important.
…		…
262		422
263	sub sync_job(&) {	423	sub sync_job(&) {
264	my ($job) = @_;	424	my ($job) = @_;
265		425
266	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
267	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
269		431
		432	LOG llevError | logBacktrace, Carp::longmess "sync job";#d#
		433
270	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	435	# (but this is cancel-safe)
272	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
273		437
274	my $busy = 1;	438	my $busy = 1;
275	my @res;	439	my @res;
276		440
277	(Coro::async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	443	@res = eval { $job->() };
279	warn $@ if $@;	444	warn $@ if $@;
280	undef $busy;	445	undef $busy;
281	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
282		447
283	while ($busy) {	448	while ($busy) {
284	Coro::cede_notself;	449	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	450	}
		451
		452	$time = Event::time - $time;
		453
		454	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		455	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		456
		457	$tick_start += $time; # do not account sync jobs to server load
287		458
288	wantarray ? @res : $res[0]	459	wantarray ? @res : $res[0]
289	} else {	460	} else {
290	# we are in another coroutine, how wonderful, everything just works	461	# we are in another coroutine, how wonderful, everything just works
291		462
292	$job->()	463	$job->()
293	}	464	}
294	}	465	}
295		466
296	=item $coro = cf::coro { BLOCK }	467	=item $coro = cf::async_ext { BLOCK }
297		468
298	Creates and returns a new coro. This coro is automcatially being canceled	469	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	470	extension calling this is being unloaded.
300		471
301	=cut	472	=cut
302		473
303	sub coro(&) {	474	sub async_ext(&) {
304	my $cb = shift;	475	my $cb = shift;
305		476
306	my $coro = &cf::async ($cb);	477	my $coro = &Coro::async ($cb);
307		478
308	$coro->on_destroy (sub {	479	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	480	delete $EXT_CORO{$coro+0};
310	});	481	});
311	$EXT_CORO{$coro+0} = $coro;	482	$EXT_CORO{$coro+0} = $coro;
312		483
313	$coro	484	$coro
314	}	485	}
315		486
316	sub write_runtime {	487	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		488
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	489	Executes the given code block with the given arguments in a seperate
320	or return;	490	process, returning the results. Everything must be serialisable with
		491	Coro::Storable. May, of course, block. Note that the executed sub may
		492	never block itself or use any form of Event handling.
321		493
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	494	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		495
326	aio_fsync $fh	496	sub fork_call(&@) {
327	and return;	497	my ($cb, @args) = @_;
328		498
329	close $fh	499	# we seemingly have to make a local copy of the whole thing,
330	or return;	500	# otherwise perl prematurely frees the stuff :/
		501	# TODO: investigate and fix (likely this will be rather laborious)
331		502
332	aio_rename "$runtime~", $runtime	503	my @res = Coro::Util::fork_eval {
333	and return;	504	reset_signals;
		505	&$cb
		506	}, @args;
334		507
		508	wantarray ? @res : $res[-1]
		509	}
		510
		511	=item $value = cf::db_get $family => $key
		512
		513	Returns a single value from the environment database.
		514
		515	=item cf::db_put $family => $key => $value
		516
		517	Stores the given C<$value> in the family. It can currently store binary
		518	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		519
		520	=item $db = cf::db_table "name"
		521
		522	Create and/or open a new database table. The string must not be "db" and must be unique
		523	within each server.
		524
		525	=cut
		526
		527	sub db_table($) {
		528	my ($name) = @_;
		529	my $db = BDB::db_create $DB_ENV;
		530
		531	eval {
		532	$db->set_flags (BDB::CHKSUM);
		533
		534	utf8::encode $name;
		535	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		536	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		537	cf::cleanup "db_open(db): $!" if $!;
		538	};
		539	cf::cleanup "db_open(db): $@" if $@;
		540
		541	$db
		542	}
		543
		544	our $DB;
		545
		546	sub db_init {
		547	cf::sync_job {
		548	$DB ||= db_table "db";
		549	};
		550	}
		551
		552	sub db_get($$) {
		553	my $key = "$_[0]/$_[1]";
		554
		555	cf::sync_job {
		556	BDB::db_get $DB, undef, $key, my $data;
		557
		558	$! ? ()
		559	: $data
335	1	560	}
		561	}
		562
		563	sub db_put($$$) {
		564	BDB::dbreq_pri 4;
		565	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		566	}
		567
		568	=item cf::cache $id => [$paths...], $processversion => $process
		569
		570	Generic caching function that returns the value of the resource $id,
		571	caching and regenerating as required.
		572
		573	This function can block.
		574
		575	=cut
		576
		577	sub cache {
		578	my ($id, $src, $processversion, $process) = @_;
		579
		580	my $meta =
		581	join "\x00",
		582	$processversion,
		583	map {
		584	aio_stat $_
		585	and Carp::croak "$_: $!";
		586
		587	($_, (stat _)[7,9])
		588	} @$src;
		589
		590	my $dbmeta = db_get cache => "$id/meta";
		591	if ($dbmeta ne $meta) {
		592	# changed, we may need to process
		593
		594	my @data;
		595	my $md5;
		596
		597	for (0 .. $#$src) {
		598	0 <= aio_load $src->[$_], $data[$_]
		599	or Carp::croak "$src->[$_]: $!";
		600	}
		601
		602	# if processing is expensive, check
		603	# checksum first
		604	if (1) {
		605	$md5 =
		606	join "\x00",
		607	$processversion,
		608	map {
		609	cf::cede_to_tick;
		610	($src->[$_], Digest::MD5::md5_hex $data[$_])
		611	} 0.. $#$src;
		612
		613
		614	my $dbmd5 = db_get cache => "$id/md5";
		615	if ($dbmd5 eq $md5) {
		616	db_put cache => "$id/meta", $meta;
		617
		618	return db_get cache => "$id/data";
		619	}
		620	}
		621
		622	my $t1 = Time::HiRes::time;
		623	my $data = $process->(\@data);
		624	my $t2 = Time::HiRes::time;
		625
		626	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		627
		628	db_put cache => "$id/data", $data;
		629	db_put cache => "$id/md5" , $md5;
		630	db_put cache => "$id/meta", $meta;
		631
		632	return $data;
		633	}
		634
		635	db_get cache => "$id/data"
		636	}
		637
		638	=item cf::datalog type => key => value, ...
		639
		640	Log a datalog packet of the given type with the given key-value pairs.
		641
		642	=cut
		643
		644	sub datalog($@) {
		645	my ($type, %kv) = @_;
		646	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
336	}	647	}
337		648
338	=back	649	=back
339		650
340	=cut	651	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		652
462	#############################################################################	653	#############################################################################
463		654
464	=head2 ATTACHABLE OBJECTS	655	=head2 ATTACHABLE OBJECTS
465		656
…		…
467	attach callbacks/event handlers (a collection of which is called an "attachment")	658	attach callbacks/event handlers (a collection of which is called an "attachment")
468	to it. All such attachable objects support the following methods.	659	to it. All such attachable objects support the following methods.
469		660
470	In the following description, CLASS can be any of C<global>, C<object>	661	In the following description, CLASS can be any of C<global>, C<object>
471	C<player>, C<client> or C<map> (i.e. the attachable objects in	662	C<player>, C<client> or C<map> (i.e. the attachable objects in
472	crossfire+).	663	Crossfire TRT).
473		664
474	=over 4	665	=over 4
475		666
476	=item $attachable->attach ($attachment, key => $value...)	667	=item $attachable->attach ($attachment, key => $value...)
477		668
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	782	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	783	our @CB_MAP = ();
593		784
594	my %attachment;	785	my %attachment;
595		786
		787	sub cf::attachable::thawer_merge {
		788	# simply override everything except _meta
		789	local $_[0]{_meta};
		790	%{$_[0]} = %{$_[1]};
		791	}
		792
596	sub _attach_cb($$$$) {	793	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	794	my ($registry, $event, $prio, $cb) = @_;
598		795
599	use sort 'stable';	796	use sort 'stable';
600		797
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	831	$registry = $CB_TYPE[$object_type] ||= [];
635		832
636	} elsif ($type eq "subtype") {	833	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	834	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	835	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	836	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		837
641	} elsif ($type eq "package") {	838	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	839	my $pkg = shift @arg;
643		840
644	while (my ($name, $id) = each %cb_id) {	841	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	870	_attach $registry, $klass, @attach;
674	}	871	}
675		872
676	$obj->{$name} = \%arg;	873	$obj->{$name} = \%arg;
677	} else {	874	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	875	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	876	}
680		877
681	$obj->{_attachment}{$name} = undef;	878	$obj->{_attachment}{$name} = undef;
682	}	879	}
683		880
…		…
685	if (ref $_[0]) {	882	if (ref $_[0]) {
686	_object_attach @_;	883	_object_attach @_;
687	} else {	884	} else {
688	_attach shift->_attach_registry, @_;	885	_attach shift->_attach_registry, @_;
689	}	886	}
		887	_recalc_want;
690	};	888	};
691		889
692	# all those should be optimised	890	# all those should be optimised
693	sub cf::attachable::detach {	891	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	892	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	895	delete $obj->{_attachment}{$name};
698	reattach ($obj);	896	reattach ($obj);
699	} else {	897	} else {
700	Carp::croak "cannot, currently, detach class attachments";	898	Carp::croak "cannot, currently, detach class attachments";
701	}	899	}
		900	_recalc_want;
702	};	901	};
703		902
704	sub cf::attachable::attached {	903	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	904	my ($obj, $name) = @_;
706		905
…		…
721	";	920	";
722	die if $@;	921	die if $@;
723	}	922	}
724		923
725	our $override;	924	our $override;
726	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	925	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
727		926
728	sub override {	927	sub override {
729	$override = 1;	928	$override = 1;
730	@invoke_results = ();	929	@INVOKE_RESULTS = (@_);
731	}	930	}
732		931
733	sub do_invoke {	932	sub do_invoke {
734	my $event = shift;	933	my $event = shift;
735	my $callbacks = shift;	934	my $callbacks = shift;
736		935
737	@invoke_results = ();	936	@INVOKE_RESULTS = ();
738		937
739	local $override;	938	local $override;
740		939
741	for (@$callbacks) {	940	for (@$callbacks) {
742	eval { &{$_->[1]} };	941	eval { &{$_->[1]} };
…		…
759		958
760	Generate an object-specific event with the given arguments.	959	Generate an object-specific event with the given arguments.
761		960
762	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	961	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
763	removed in future versions), and there is no public API to access override	962	removed in future versions), and there is no public API to access override
764	results (if you must, access C<@cf::invoke_results> directly).	963	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		964
766	=back	965	=back
767		966
768	=cut	967	=cut
769		968
770	#############################################################################	969	#############################################################################
771	# object support	970	# object support
		971	#
		972
		973	sub _can_merge {
		974	my ($ob1, $ob2) = @_;
		975
		976	local $Storable::canonical = 1;
		977	my $fob1 = Storable::freeze $ob1;
		978	my $fob2 = Storable::freeze $ob2;
		979
		980	$fob1 eq $fob2
		981	}
772		982
773	sub reattach {	983	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	984	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	985	my ($obj) = @_;
		986
		987	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		988
777	my $registry = $obj->registry;	989	my $registry = $obj->registry;
778		990
779	@$registry = ();	991	@$registry = ();
780		992
…		…
821	sub object_freezer_save {	1033	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1034	my ($filename, $rdata, $objs) = @_;
823		1035
824	sync_job {	1036	sync_job {
825	if (length $$rdata) {	1037	if (length $$rdata) {
		1038	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1039	warn sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1040	$decname, length $$rdata, scalar @$objs;
828		1041
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1042	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1043	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1044	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	1045	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	1046	close $fh;
834		1047
835	if (@$objs) {	1048	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1051	my $data = Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1052	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	1053	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	1054	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1055	aio_rename "$filename.pst~", "$filename.pst";
843	}	1056	}
844	} else {	1057	} else {
845	aio_unlink "$filename.pst";	1058	aio_unlink "$filename.pst";
…		…
851	}	1064	}
852	} else {	1065	} else {
853	aio_unlink $filename;	1066	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1067	aio_unlink "$filename.pst";
855	}	1068	}
856	}	1069	};
857	}	1070	}
858		1071
859	sub object_freezer_as_string {	1072	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1073	my ($rdata, $objs) = @_;
861		1074
…		…
873	or return;	1086	or return;
874		1087
875	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
877	or return;	1090	or return;
		1091
878	$av = eval { (Storable::thaw $av)->{objs} };	1092	$av = eval { (Storable::thaw $av)->{objs} };
879	}	1093	}
880		1094
		1095	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1096	warn sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1097	$decname, length $data, scalar @{$av || []};
		1098
883	return ($data, $av);	1099	($data, $av)
884	}	1100	}
		1101
		1102	=head2 COMMAND CALLBACKS
		1103
		1104	=over 4
		1105
		1106	=cut
885		1107
886	#############################################################################	1108	#############################################################################
887	# command handling &c	1109	# command handling &c
888		1110
889	=item cf::register_command $name => \&callback($ob,$args);	1111	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1124	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1125	}
904		1126
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1127	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1128
907	Register a callbackf ro execution when the client sends an extcmd packet.	1129	Register a callback for execution when the client sends an (synchronous)
		1130	extcmd packet. Ext commands will be processed in the order they are
		1131	received by the server, like other user commands. The first argument is
		1132	the logged-in player. Ext commands can only be processed after a player
		1133	has logged in successfully.
908		1134
909	If the callback returns something, it is sent back as if reply was being	1135	If the callback returns something, it is sent back as if reply was being
910	called.	1136	called.
911		1137
		1138	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1139
		1140	Register a callback for execution when the client sends an (asynchronous)
		1141	exticmd packet. Exti commands are processed by the server as soon as they
		1142	are received, i.e. out of order w.r.t. other commands. The first argument
		1143	is a client socket. Exti commands can be received anytime, even before
		1144	log-in.
		1145
		1146	If the callback returns something, it is sent back as if reply was being
		1147	called.
		1148
912	=cut	1149	=cut
913		1150
914	sub register_extcmd {	1151	sub register_extcmd {
915	my ($name, $cb) = @_;	1152	my ($name, $cb) = @_;
916		1153
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1154	$EXTCMD{$name} = $cb;
		1155	}
		1156
		1157	sub register_exticmd {
		1158	my ($name, $cb) = @_;
		1159
		1160	$EXTICMD{$name} = $cb;
921	}	1161	}
922		1162
923	cf::player->attach (	1163	cf::player->attach (
924	on_command => sub {	1164	on_command => sub {
925	my ($pl, $name, $params) = @_;	1165	my ($pl, $name, $params) = @_;
…		…
934	cf::override;	1174	cf::override;
935	},	1175	},
936	on_extcmd => sub {	1176	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1177	my ($pl, $buf) = @_;
938		1178
939	my $msg = eval { from_json $buf };	1179	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1180
941	if (ref $msg) {	1181	if (ref $msg) {
		1182	my ($type, $reply, @payload) =
		1183	"ARRAY" eq ref $msg
		1184	? @$msg
		1185	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1186
		1187	my @reply;
		1188
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1189	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1190	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1191	}
		1192
		1193	$pl->ext_reply ($reply, @reply)
		1194	if $reply;
		1195
947	} else {	1196	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1197	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1198	}
950		1199
951	cf::override;	1200	cf::override;
952	},	1201	},
953	);	1202	);
954		1203
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1204	sub load_extensions {
		1205	cf::sync_job {
		1206	my %todo;
		1207
		1208	for my $path (<$LIBDIR/*.ext>) {
		1209	next unless -r $path;
		1210
		1211	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1212	my $base = $1;
		1213	my $pkg = $1;
		1214	$pkg =~ s/[^[:word:]]/_/g;
		1215	$pkg = "ext::$pkg";
		1216
		1217	open my $fh, "<:utf8", $path
		1218	or die "$path: $!";
		1219
		1220	my $source = do { local $/; <$fh> };
		1221
		1222	my %ext = (
		1223	path => $path,
		1224	base => $base,
		1225	pkg => $pkg,
		1226	);
		1227
		1228	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1229	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1230
		1231	$ext{source} =
		1232	"package $pkg; use strict; use utf8;\n"
		1233	. "#line 1 \"$path\"\n{\n"
		1234	. $source
		1235	. "\n};\n1";
		1236
		1237	$todo{$base} = \%ext;
		1238	}
		1239
		1240	my %done;
		1241	while (%todo) {
		1242	my $progress;
		1243
		1244	while (my ($k, $v) = each %todo) {
		1245	for (split /,\s*/, $v->{meta}{depends}) {
		1246	goto skip
		1247	unless exists $done{$_};
		1248	}
		1249
		1250	warn "... loading '$k' into '$v->{pkg}'\n";
		1251
		1252	unless (eval $v->{source}) {
		1253	my $msg = $@ ? "$v->{path}: $@\n"
		1254	: "$v->{base}: extension inactive.\n";
		1255
		1256	if (exists $v->{meta}{mandatory}) {
		1257	warn $msg;
		1258	warn "mandatory extension failed to load, exiting.\n";
		1259	exit 1;
		1260	}
		1261
		1262	warn $msg;
		1263	}
		1264
		1265	$done{$k} = delete $todo{$k};
		1266	push @EXTS, $v->{pkg};
		1267	$progress = 1;
		1268	}
		1269
		1270	skip:
		1271	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1272	unless $progress;
		1273	}
		1274	};
		1275	}
		1276
		1277	#############################################################################
		1278
		1279	=back
		1280
		1281	=head2 CORE EXTENSIONS
		1282
		1283	Functions and methods that extend core crossfire objects.
		1284
		1285	=cut
		1286
		1287	package cf::player;
		1288
		1289	use Coro::AIO;
		1290
		1291	=head3 cf::player
		1292
		1293	=over 4
		1294
		1295	=item cf::player::num_playing
		1296
		1297	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1298
		1299	=cut
		1300
		1301	sub num_playing {
		1302	scalar grep
		1303	$_->ob->map
		1304	&& !$_->hidden
		1305	&& !$_->ob->flag (cf::FLAG_WIZ),
		1306	cf::player::list
		1307	}
		1308
		1309	=item cf::player::find $login
		1310
		1311	Returns the given player object, loading it if necessary (might block).
		1312
		1313	=cut
		1314
		1315	sub playerdir($) {
		1316	"$PLAYERDIR/"
		1317	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1318	}
		1319
		1320	sub path($) {
		1321	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1322
		1323	(playerdir $login) . "/playerdata"
		1324	}
		1325
		1326	sub find_active($) {
		1327	$cf::PLAYER{$_[0]}
		1328	and $cf::PLAYER{$_[0]}->active
		1329	and $cf::PLAYER{$_[0]}
		1330	}
		1331
		1332	sub exists($) {
		1333	my ($login) = @_;
		1334
		1335	$cf::PLAYER{$login}
		1336	or cf::sync_job { !aio_stat path $login }
		1337	}
		1338
		1339	sub find($) {
		1340	return $cf::PLAYER{$_[0]} || do {
		1341	my $login = $_[0];
		1342
		1343	my $guard = cf::lock_acquire "user_find:$login";
		1344
		1345	$cf::PLAYER{$_[0]} || do {
		1346	# rename old playerfiles to new ones
		1347	#TODO: remove when no longer required
		1348	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1349	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1350	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1351	aio_unlink +(playerdir $login) . "/$login.pl";
		1352
		1353	my $f = new_from_file cf::object::thawer path $login
		1354	or return;
		1355
		1356	my $pl = cf::player::load_pl $f
		1357	or return;
		1358	local $cf::PLAYER_LOADING{$login} = $pl;
		1359	$f->resolve_delayed_derefs;
		1360	$cf::PLAYER{$login} = $pl
		1361	}
		1362	}
		1363	}
		1364
		1365	sub save($) {
		1366	my ($pl) = @_;
		1367
		1368	return if $pl->{deny_save};
		1369
		1370	my $path = path $pl;
		1371	my $guard = cf::lock_acquire "user_save:$path";
		1372
		1373	return if $pl->{deny_save};
		1374
		1375	aio_mkdir playerdir $pl, 0770;
		1376	$pl->{last_save} = $cf::RUNTIME;
		1377
		1378	$pl->save_pl ($path);
		1379	cf::cede_to_tick;
		1380	}
		1381
		1382	sub new($) {
		1383	my ($login) = @_;
		1384
		1385	my $self = create;
		1386
		1387	$self->ob->name ($login);
		1388	$self->{deny_save} = 1;
		1389
		1390	$cf::PLAYER{$login} = $self;
		1391
		1392	$self
		1393	}
		1394
		1395	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1396
		1397	=cut
		1398
		1399	sub send_msg {
		1400	my $ns = shift->ns
		1401	or return;
		1402	$ns->send_msg (@_);
		1403	}
		1404
		1405	=item $pl->quit_character
		1406
		1407	Nukes the player without looking back. If logged in, the connection will
		1408	be destroyed. May block for a long time.
		1409
		1410	=cut
		1411
		1412	sub quit_character {
		1413	my ($pl) = @_;
		1414
		1415	my $name = $pl->ob->name;
		1416
		1417	$pl->{deny_save} = 1;
		1418	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1419
		1420	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1421	$pl->deactivate;
		1422	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1423	$pl->ns->destroy if $pl->ns;
		1424
		1425	my $path = playerdir $pl;
		1426	my $temp = "$path~$cf::RUNTIME~deleting~";
		1427	aio_rename $path, $temp;
		1428	delete $cf::PLAYER{$pl->ob->name};
		1429	$pl->destroy;
		1430
		1431	my $prefix = qr<^~\Q$name\E/>;
		1432
		1433	# nuke player maps
		1434	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1435
		1436	IO::AIO::aio_rmtree $temp;
		1437	}
		1438
		1439	=item $pl->kick
		1440
		1441	Kicks a player out of the game. This destroys the connection.
		1442
		1443	=cut
		1444
		1445	sub kick {
		1446	my ($pl, $kicker) = @_;
		1447
		1448	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1449	$pl->killer ("kicked");
		1450	$pl->ns->destroy;
		1451	}
		1452
		1453	=item cf::player::list_logins
		1454
		1455	Returns am arrayref of all valid playernames in the system, can take a
		1456	while and may block, so not sync_job-capable, ever.
		1457
		1458	=cut
		1459
		1460	sub list_logins {
		1461	my $dirs = aio_readdir $PLAYERDIR
		1462	or return [];
		1463
		1464	my @logins;
		1465
		1466	for my $login (@$dirs) {
		1467	my $path = path $login;
		1468
		1469	# a .pst is a dead give-away for a valid player
		1470	unless (-e "$path.pst") {
		1471	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1472	aio_read $fh, 0, 512, my $buf, 0 or next;
		1473	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1474	}
		1475
		1476	utf8::decode $login;
		1477	push @logins, $login;
		1478	}
		1479
		1480	\@logins
		1481	}
		1482
		1483	=item $player->maps
		1484
		1485	Returns an arrayref of map paths that are private for this
		1486	player. May block.
		1487
		1488	=cut
		1489
		1490	sub maps($) {
		1491	my ($pl) = @_;
		1492
		1493	$pl = ref $pl ? $pl->ob->name : $pl;
		1494
		1495	my $files = aio_readdir playerdir $pl
		1496	or return;
		1497
		1498	my @paths;
		1499
		1500	for (@$files) {
		1501	utf8::decode $_;
		1502	next if /\.(?:pl|pst)$/;
		1503	next unless /^$PATH_SEP/o;
		1504
		1505	push @paths, cf::map::normalise "~$pl/$_";
		1506	}
		1507
		1508	\@paths
		1509	}
		1510
		1511	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1512
		1513	Expand crossfire pod fragments into protocol xml.
		1514
		1515	=cut
		1516
		1517	sub expand_cfpod {
		1518	((my $self), (local $_)) = @_;
		1519
		1520	# escape & and <
		1521	s/&/&amp;/g;
		1522	s/(?<![BIUGHT])</&lt;/g;
		1523
		1524	# this is buggy, it needs to properly take care of nested <'s
		1525
		1526	1 while
		1527	# replace B<>, I<>, U<> etc.
		1528	s/B<([^\>]*)>/<b>$1<\/b>/
		1529	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1530	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1531	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1532	# replace G<male|female> tags
		1533	|| s{G<([^>|]*)\|([^>]*)>}{
		1534	$self->gender ? $2 : $1
		1535	}ge
		1536	# replace H<hint text>
		1537	|| s{H<([^\>]*)>}
		1538	{
		1539	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1540	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1541	"")
		1542	[$self->{hintmode}]
		1543	}ge;
		1544
		1545	# create single paragraphs (very hackish)
		1546	s/(?<=\S)\n(?=\w)/ /g;
		1547
		1548	# compress some whitespace
		1549	s/\s+\n/\n/g; # ws line-ends
		1550	s/\n\n+/\n/g; # double lines
		1551	s/^\n+//; # beginning lines
		1552	s/\n+$//; # ending lines
		1553
		1554	$_
		1555	}
		1556
		1557	sub hintmode {
		1558	$_[0]{hintmode} = $_[1] if @_ > 1;
		1559	$_[0]{hintmode}
		1560	}
		1561
		1562	=item $player->ext_reply ($msgid, @msg)
		1563
		1564	Sends an ext reply to the player.
		1565
		1566	=cut
		1567
		1568	sub ext_reply($$@) {
		1569	my ($self, $id, @msg) = @_;
		1570
		1571	$self->ns->ext_reply ($id, @msg)
		1572	}
		1573
		1574	=item $player->ext_msg ($type, @msg)
		1575
		1576	Sends an ext event to the client.
		1577
		1578	=cut
		1579
		1580	sub ext_msg($$@) {
		1581	my ($self, $type, @msg) = @_;
		1582
		1583	$self->ns->ext_msg ($type, @msg);
		1584	}
		1585
		1586	=head3 cf::region
		1587
		1588	=over 4
		1589
		1590	=cut
		1591
		1592	package cf::region;
		1593
		1594	=item cf::region::find_by_path $path
		1595
		1596	Tries to decuce the likely region for a map knowing only its path.
		1597
		1598	=cut
		1599
		1600	sub find_by_path($) {
962	my ($path) = @_;	1601	my ($path) = @_;
963		1602
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1603	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1604
970	warn "loading '$path' into '$pkg'\n";	1605	for my $region (list) {
971		1606	if ($region->{match} && $path =~ $region->{match}) {
972	open my $fh, "<:utf8", $path	1607	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1608	if $region->specificity > $specificity;
974		1609	}
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	1610	}
1004		1611
1005	# remove commands	1612	$match
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}
1030
1031	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;
1034	eval {
1035	load_extension $ext;
1036	1
1037	} or warn "$ext not loaded: $@";
1038	}
1039	}
1040
1041	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078
1079	=head2 CORE EXTENSIONS
1080
1081	Functions and methods that extend core crossfire objects.
1082
1083	=head3 cf::player
1084
1085	=over 4
1086
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut
1092
1093	sub cf::player::exists($) {
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099
1100	Sends an ext reply to the player.
1101
1102	=cut
1103
1104	sub cf::player::ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;
1106
1107	$msg{msgid} = $id;
1108
1109	$self->send ("ext " . to_json \%msg);
1110	}	1613	}
1111		1614
1112	=back	1615	=back
1113
1114		1616
1115	=head3 cf::map	1617	=head3 cf::map
1116		1618
1117	=over 4	1619	=over 4
1118		1620
…		…
1121	package cf::map;	1623	package cf::map;
1122		1624
1123	use Fcntl;	1625	use Fcntl;
1124	use Coro::AIO;	1626	use Coro::AIO;
1125		1627
		1628	use overload
		1629	'""' => \&as_string,
		1630	fallback => 1;
		1631
1126	our $MAX_RESET = 3600;	1632	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1633	our $DEFAULT_RESET = 3000;
1128		1634
1129	sub generate_random_map {	1635	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1636	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1637	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1638	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1639	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1640	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1641	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1642	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1643	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1644	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1645	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1646	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1647	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1648	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1649	(cf::region::find $rmp->{region}), $rmp->{custom}
		1650	)
		1651	}
		1652
		1653	=item cf::map->register ($regex, $prio)
		1654
		1655	Register a handler for the map path matching the given regex at the
		1656	givne priority (higher is better, built-in handlers have priority 0, the
		1657	default).
		1658
		1659	=cut
		1660
		1661	sub register {
		1662	my (undef, $regex, $prio) = @_;
		1663	my $pkg = caller;
		1664
		1665	no strict;
		1666	push @{"$pkg\::ISA"}, __PACKAGE__;
		1667
		1668	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1669	}
		1670
		1671	# also paths starting with '/'
		1672	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1673
		1674	sub thawer_merge {
		1675	my ($self, $merge) = @_;
		1676
		1677	# we have to keep some variables in memory intact
		1678	local $self->{path};
		1679	local $self->{load_path};
		1680
		1681	$self->SUPER::thawer_merge ($merge);
		1682	}
		1683
		1684	sub normalise {
		1685	my ($path, $base) = @_;
		1686
		1687	$path = "$path"; # make sure its a string
		1688
		1689	$path =~ s/\.map$//;
		1690
		1691	# map plan:
		1692	#
		1693	# /! non-realised random map exit (special hack!)
		1694	# {... are special paths that are not being touched
		1695	# ?xxx/... are special absolute paths
		1696	# ?random/... random maps
		1697	# /... normal maps
		1698	# ~user/... per-player map of a specific user
		1699
		1700	$path =~ s/$PATH_SEP/\//go;
		1701
		1702	# treat it as relative path if it starts with
		1703	# something that looks reasonable
		1704	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1705	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1706
		1707	$base =~ s{[^/]+/?$}{};
		1708	$path = "$base/$path";
		1709	}
		1710
		1711	for ($path) {
		1712	redo if s{//}{/};
		1713	redo if s{/\.?/}{/};
		1714	redo if s{/[^/]+/\.\./}{/};
		1715	}
		1716
		1717	$path
		1718	}
		1719
		1720	sub new_from_path {
		1721	my (undef, $path, $base) = @_;
		1722
		1723	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1724
		1725	$path = normalise $path, $base;
		1726
		1727	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1728	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1729	my $self = bless cf::map::new, $pkg;
		1730	$self->{path} = $path; $self->path ($path);
		1731	$self->init; # pass $1 etc.
		1732	return $self;
		1733	}
		1734	}
		1735
		1736	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1737	()
		1738	}
		1739
		1740	sub init {
		1741	my ($self) = @_;
		1742
		1743	$self
		1744	}
		1745
		1746	sub as_string {
		1747	my ($self) = @_;
		1748
		1749	"$self->{path}"
		1750	}
		1751
		1752	# the displayed name, this is a one way mapping
		1753	sub visible_name {
		1754	&as_string
		1755	}
		1756
		1757	# the original (read-only) location
		1758	sub load_path {
		1759	my ($self) = @_;
		1760
		1761	"$MAPDIR/$self->{path}.map"
		1762	}
		1763
		1764	# the temporary/swap location
		1765	sub save_path {
		1766	my ($self) = @_;
		1767
		1768	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1769	"$TMPDIR/$path.map"
		1770	}
		1771
		1772	# the unique path, undef == no special unique path
		1773	sub uniq_path {
		1774	my ($self) = @_;
		1775
		1776	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1777	"$UNIQUEDIR/$path"
1146	}	1778	}
1147		1779
1148	# and all this just because we cannot iterate over	1780	# and all this just because we cannot iterate over
1149	# all maps in C++...	1781	# all maps in C++...
1150	sub change_all_map_light {	1782	sub change_all_map_light {
…		…
1152		1784
1153	$_->change_map_light ($change)	1785	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1786	for grep $_->outdoor, values %cf::MAP;
1155	}	1787	}
1156		1788
		1789	sub decay_objects {
		1790	my ($self) = @_;
		1791
		1792	return if $self->{deny_reset};
		1793
		1794	$self->do_decay_objects;
		1795	}
		1796
		1797	sub unlink_save {
		1798	my ($self) = @_;
		1799
		1800	utf8::encode (my $save = $self->save_path);
		1801	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1802	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1803	}
		1804
1157	sub try_load_header($) {	1805	sub load_header_from($) {
1158	my ($path) = @_;	1806	my ($self, $path) = @_;
1159		1807
1160	utf8::encode $path;	1808	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1809	my $f = new_from_file cf::object::thawer $path
1162	or return;	1810	or return;
1163		1811
1164	my $map = cf::map::new	1812	$self->_load_header ($f)
1165	or return;	1813	or return;
1166		1814
1167	# for better error messages only, will be overwritten	1815	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	1816	$f->resolve_delayed_derefs;
1169		1817
1170	$map->load_header ($path)	1818	$self->{load_path} = $path;
		1819
		1820	1
		1821	}
		1822
		1823	sub load_header_orig {
		1824	my ($self) = @_;
		1825
		1826	$self->load_header_from ($self->load_path)
		1827	}
		1828
		1829	sub load_header_temp {
		1830	my ($self) = @_;
		1831
		1832	$self->load_header_from ($self->save_path)
		1833	}
		1834
		1835	sub prepare_temp {
		1836	my ($self) = @_;
		1837
		1838	$self->last_access ((delete $self->{last_access})
		1839	|| $cf::RUNTIME); #d#
		1840	# safety
		1841	$self->{instantiate_time} = $cf::RUNTIME
		1842	if $self->{instantiate_time} > $cf::RUNTIME;
		1843	}
		1844
		1845	sub prepare_orig {
		1846	my ($self) = @_;
		1847
		1848	$self->{load_original} = 1;
		1849	$self->{instantiate_time} = $cf::RUNTIME;
		1850	$self->last_access ($cf::RUNTIME);
		1851	$self->instantiate;
		1852	}
		1853
		1854	sub load_header {
		1855	my ($self) = @_;
		1856
		1857	if ($self->load_header_temp) {
		1858	$self->prepare_temp;
		1859	} else {
		1860	$self->load_header_orig
1171	or return;	1861	or return;
		1862	$self->prepare_orig;
		1863	}
1172		1864
1173	$map->{load_path} = $path;	1865	$self->{deny_reset} = 1
		1866	if $self->no_reset;
1174		1867
1175	$map	1868	$self->default_region (cf::region::find_by_path $self->{path})
		1869	unless $self->default_region;
		1870
		1871	1
1176	}	1872	}
1177		1873
1178	sub find;	1874	sub find;
1179	sub find {	1875	sub find {
1180	my ($path, $origin) = @_;	1876	my ($path, $origin) = @_;
1181		1877
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1878	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1879
		1880	cf::lock_wait "map_data:$path";#d#remove
1187	cf::lock_wait "map_find:$key";	1881	cf::lock_wait "map_find:$path";
1188		1882
1189	$cf::MAP{$key} || do {	1883	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1884	my $guard1 = cf::lock_acquire "map_find:$path";
		1885	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1191		1886
1192	# do it the slow way	1887	my $map = new_from_path cf::map $path
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1888	or return;
1211		1889
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1890	$map->{last_save} = $cf::RUNTIME;
1224		1891
1225	Coro::cede;	1892	$map->load_header
		1893	or return;
1226		1894
1227	if ($map->should_reset) {	1895	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1896	# doing this can freeze the server in a sync job, obviously
		1897	#$cf::WAIT_FOR_TICK->wait;
		1898	undef $guard1;
		1899	undef $guard2;
1228	$map->reset;	1900	$map->reset;
1229	undef $guard;
1230	$map = find $path	1901	return find $path;
1231	or return;
1232	}	1902	}
1233		1903
1234	$cf::MAP{$key} = $map	1904	$cf::MAP{$path} = $map
1235	}	1905	}
1236	}	1906	}
		1907
		1908	sub pre_load { }
		1909	sub post_load { }
1237		1910
1238	sub load {	1911	sub load {
1239	my ($self) = @_;	1912	my ($self) = @_;
1240		1913
		1914	local $self->{deny_reset} = 1; # loading can take a long time
		1915
1241	my $path = $self->{path};	1916	my $path = $self->{path};
		1917
		1918	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1919	my $guard = cf::lock_acquire "map_data:$path";
1243		1920
		1921	return unless $self->valid;
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1922	return unless $self->in_memory == cf::MAP_SWAPPED;
1245		1923
1246	$self->in_memory (cf::MAP_LOADING);	1924	$self->in_memory (cf::MAP_LOADING);
1247		1925
1248	$self->alloc;	1926	$self->alloc;
1249	$self->load_objects ($self->{load_path}, 1)	1927
		1928	$self->pre_load;
		1929	cf::cede_to_tick;
		1930
		1931	my $f = new_from_file cf::object::thawer $self->{load_path};
		1932	$f->skip_block;
		1933	$self->_load_objects ($f)
1250	or return;	1934	or return;
1251		1935
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1936	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1937	if delete $self->{load_original};
1254		1938
1255	if (my $uniq = $path->uniq_path) {	1939	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1940	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1941	unless (aio_stat $uniq) {
		1942	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	1943	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1944	$self->_load_objects ($f);
		1945	$f->resolve_delayed_derefs;
		1946	}
1260	}	1947	}
1261	}	1948	}
1262		1949
1263	Coro::cede;	1950	$f->resolve_delayed_derefs;
1264		1951
		1952	cf::cede_to_tick;
1265	# now do the right thing for maps	1953	# now do the right thing for maps
1266	$self->link_multipart_objects;	1954	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	1955	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	1956	unless $self->difficulty;
		1957	cf::cede_to_tick;
		1958
		1959	unless ($self->{deny_activate}) {
		1960	$self->decay_objects;
		1961	$self->fix_auto_apply;
		1962	$self->update_buttons;
		1963	cf::cede_to_tick;
		1964	$self->set_darkness_map;
		1965	cf::cede_to_tick;
1278	$self->activate;	1966	$self->activate;
1279	}	1967	}
1280		1968
1281	Coro::cede;	1969	$self->{last_save} = $cf::RUNTIME;
		1970	$self->last_access ($cf::RUNTIME);
1282		1971
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1972	$self->in_memory (cf::MAP_IN_MEMORY);
		1973	}
		1974
		1975	$self->post_load;
		1976	}
		1977
		1978	sub customise_for {
		1979	my ($self, $ob) = @_;
		1980
		1981	return find "~" . $ob->name . "/" . $self->{path}
		1982	if $self->per_player;
		1983
		1984	# return find "?party/" . $ob->name . "/" . $self->{path}
		1985	# if $self->per_party;
		1986
		1987	$self
		1988	}
		1989
		1990	# find and load all maps in the 3x3 area around a map
		1991	sub load_neighbours {
		1992	my ($map) = @_;
		1993
		1994	my @neigh; # diagonal neighbours
		1995
		1996	for (0 .. 3) {
		1997	my $neigh = $map->tile_path ($_)
		1998	or next;
		1999	$neigh = find $neigh, $map
		2000	or next;
		2001	$neigh->load;
		2002
		2003	push @neigh,
		2004	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2005	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2006	}
		2007
		2008	for (grep defined $_->[0], @neigh) {
		2009	my ($path, $origin) = @$_;
		2010	my $neigh = find $path, $origin
		2011	or next;
		2012	$neigh->load;
		2013	}
1284	}	2014	}
1285		2015
1286	sub find_sync {	2016	sub find_sync {
1287	my ($path, $origin) = @_;	2017	my ($path, $origin) = @_;
1288		2018
1289	cf::sync_job { cf::map::find $path, $origin }	2019	cf::sync_job { find $path, $origin }
1290	}	2020	}
1291		2021
1292	sub do_load_sync {	2022	sub do_load_sync {
1293	my ($map) = @_;	2023	my ($map) = @_;
1294		2024
		2025	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2026	if $Coro::current == $Coro::main;
		2027
1295	cf::sync_job { $map->load };	2028	cf::sync_job { $map->load };
		2029	}
		2030
		2031	our %MAP_PREFETCH;
		2032	our $MAP_PREFETCHER = undef;
		2033
		2034	sub find_async {
		2035	my ($path, $origin, $load) = @_;
		2036
		2037	$path = normalise $path, $origin && $origin->{path};
		2038
		2039	if (my $map = $cf::MAP{$path}) {
		2040	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2041	}
		2042
		2043	$MAP_PREFETCH{$path} |= $load;
		2044
		2045	$MAP_PREFETCHER ||= cf::async {
		2046	$Coro::current->{desc} = "map prefetcher";
		2047
		2048	while (%MAP_PREFETCH) {
		2049	while (my ($k, $v) = each %MAP_PREFETCH) {
		2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
		2054	delete $MAP_PREFETCH{$k};
		2055	}
		2056	}
		2057	undef $MAP_PREFETCHER;
		2058	};
		2059	$MAP_PREFETCHER->prio (6);
		2060
		2061	()
1296	}	2062	}
1297		2063
1298	sub save {	2064	sub save {
1299	my ($self) = @_;	2065	my ($self) = @_;
1300		2066
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2068
1303	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1304		2070
1305	return unless $self->dirty;	2071	return unless $self->dirty;
1306		2072
1307	my $save = $self->{path}->save_path; utf8::encode $save;	2073	my $save = $self->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
1309		2075
1310	$self->{load_path} = $save;	2076	$self->{load_path} = $save;
1311		2077
1312	return if $self->{deny_save};	2078	return if $self->{deny_save};
1313		2079
1314	local $self->{last_access} = $self->last_access;#d#	2080	local $self->{last_access} = $self->last_access;#d#
1315		2081
		2082	cf::async {
		2083	$Coro::current->{desc} = "map player save";
		2084	$_->contr->save for $self->players;
		2085	};
		2086
1316	if ($uniq) {	2087	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2088	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	2089	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	2090	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2091	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	2092	}
1322	}	2093	}
1323		2094
1324	sub swap_out {	2095	sub swap_out {
1325	my ($self) = @_;	2096	my ($self) = @_;
1326		2097
1327	# save first because save cedes	2098	# save first because save cedes
1328	$self->save;	2099	$self->save;
1329		2100
1330	my $lock = cf::lock_acquire "map_data:" . $self->path;	2101	my $lock = cf::lock_acquire "map_data:$self->{path}";
1331		2102
1332	return if $self->players;	2103	return if $self->players;
1333	return if $self->in_memory != cf::MAP_IN_MEMORY;	2104	return if $self->in_memory != cf::MAP_IN_MEMORY;
1334	return if $self->{deny_save};	2105	return if $self->{deny_save};
1335		2106
		2107	$self->in_memory (cf::MAP_SWAPPED);
		2108
		2109	$self->deactivate;
		2110	$_->clear_links_to ($self) for values %cf::MAP;
1336	$self->clear;	2111	$self->clear;
1337	$self->in_memory (cf::MAP_SWAPPED);
1338	}	2112	}
1339		2113
1340	sub reset_at {	2114	sub reset_at {
1341	my ($self) = @_;	2115	my ($self) = @_;
1342		2116
1343	# TODO: safety, remove and allow resettable per-player maps	2117	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};
1345	return 1e99 if $self->{deny_reset};	2118	return 1e99 if $self->{deny_reset};
1346		2119
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2120	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2121	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		2122
…		…
1354	my ($self) = @_;	2127	my ($self) = @_;
1355		2128
1356	$self->reset_at <= $cf::RUNTIME	2129	$self->reset_at <= $cf::RUNTIME
1357	}	2130	}
1358		2131
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	2132	sub reset {
1381	my ($self) = @_;	2133	my ($self) = @_;
1382		2134
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	2135	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		2136
1385	return if $self->players;	2137	return if $self->players;
1386	return if $self->{path}{user_rel};#d#
1387		2138
1388	warn "resetting map ", $self->path;#d#	2139	warn "resetting map ", $self->path;
		2140
		2141	$self->in_memory (cf::MAP_SWAPPED);
		2142
		2143	# need to save uniques path
		2144	unless ($self->{deny_save}) {
		2145	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2146
		2147	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2148	if $uniq;
		2149	}
1389		2150
1390	delete $cf::MAP{$self->path};	2151	delete $cf::MAP{$self->path};
1391		2152
		2153	$self->deactivate;
1392	$_->clear_links_to ($self) for values %cf::MAP;	2154	$_->clear_links_to ($self) for values %cf::MAP;
		2155	$self->clear;
1393		2156
1394	$self->unlink_save;	2157	$self->unlink_save;
1395	$self->destroy;	2158	$self->destroy;
1396	}	2159	}
1397		2160
1398	my $nuke_counter = "aaaa";	2161	my $nuke_counter = "aaaa";
1399		2162
1400	sub nuke {	2163	sub nuke {
1401	my ($self) = @_;	2164	my ($self) = @_;
1402		2165
		2166	{
		2167	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2168
		2169	delete $cf::MAP{$self->path};
		2170
		2171	$self->unlink_save;
		2172
		2173	bless $self, "cf::map";
		2174	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	2175	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	2176	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	2177	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2178
		2179	$cf::MAP{$self->path} = $self;
		2180	}
		2181
1406	$self->reset; # polite request, might not happen	2182	$self->reset; # polite request, might not happen
1407	}	2183	}
1408		2184
1409	sub customise_for {	2185	=item $maps = cf::map::tmp_maps
1410	my ($map, $ob) = @_;
1411		2186
1412	if ($map->per_player) {	2187	Returns an arrayref with all map paths of currently instantiated and saved
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2188	maps. May block.
		2189
		2190	=cut
		2191
		2192	sub tmp_maps() {
1414	}	2193	[
1415		2194	map {
1416	$map	2195	utf8::decode $_;
		2196	/\.map$/
		2197	? normalise $_
		2198	: ()
		2199	} @{ aio_readdir $TMPDIR or [] }
		2200	]
1417	}	2201	}
1418		2202
1419	sub emergency_save {	2203	=item $maps = cf::map::random_maps
1420	my $freeze_guard = cf::freeze_mainloop;
1421		2204
1422	warn "enter emergency map save\n";	2205	Returns an arrayref with all map paths of currently instantiated and saved
		2206	random maps. May block.
1423		2207
1424	cf::sync_job {	2208	=cut
1425	warn "begin emergency map save\n";
1426	$_->save for values %cf::MAP;
1427	};
1428		2209
1429	warn "end emergency map save\n";	2210	sub random_maps() {
		2211	[
		2212	map {
		2213	utf8::decode $_;
		2214	/\.map$/
		2215	? normalise "?random/$_"
		2216	: ()
		2217	} @{ aio_readdir $RANDOMDIR or [] }
		2218	]
		2219	}
		2220
		2221	=item cf::map::unique_maps
		2222
		2223	Returns an arrayref of paths of all shared maps that have
		2224	instantiated unique items. May block.
		2225
		2226	=cut
		2227
		2228	sub unique_maps() {
		2229	[
		2230	map {
		2231	utf8::decode $_;
		2232	/\.map$/
		2233	? normalise $_
		2234	: ()
		2235	} @{ aio_readdir $UNIQUEDIR or [] }
		2236	]
1430	}	2237	}
1431		2238
1432	package cf;	2239	package cf;
1433		2240
1434	=back	2241	=back
1435		2242
		2243	=head3 cf::object
		2244
		2245	=cut
		2246
		2247	package cf::object;
		2248
		2249	=over 4
		2250
		2251	=item $ob->inv_recursive
		2252
		2253	Returns the inventory of the object _and_ their inventories, recursively.
		2254
		2255	=cut
		2256
		2257	sub inv_recursive_;
		2258	sub inv_recursive_ {
		2259	map { $_, inv_recursive_ $_->inv } @_
		2260	}
		2261
		2262	sub inv_recursive {
		2263	inv_recursive_ inv $_[0]
		2264	}
		2265
		2266	=item $ref = $ob->ref
		2267
		2268	creates and returns a persistent reference to an objetc that can be stored as a string.
		2269
		2270	=item $ob = cf::object::deref ($refstring)
		2271
		2272	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2273	even if the object actually exists. May block.
		2274
		2275	=cut
		2276
		2277	sub deref {
		2278	my ($ref) = @_;
		2279
		2280	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2281	my ($uuid, $name) = ($1, $2);
		2282	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2283	or return;
		2284	$pl->ob->uuid eq $uuid
		2285	or return;
		2286
		2287	$pl->ob
		2288	} else {
		2289	warn "$ref: cannot resolve object reference\n";
		2290	undef
		2291	}
		2292	}
		2293
		2294	package cf;
		2295
		2296	=back
1436		2297
1437	=head3 cf::object::player	2298	=head3 cf::object::player
1438		2299
1439	=over 4	2300	=over 4
1440		2301
…		…
1454		2315
1455	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2316	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1456		2317
1457	if ($self->{record_replies}) {	2318	if ($self->{record_replies}) {
1458	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2319	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2320
1459	} else {	2321	} else {
		2322	my $pl = $self->contr;
		2323
		2324	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2325	my $dialog = $pl->{npc_dialog};
		2326	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2327
		2328	} else {
1460	$msg = $npc->name . " says: $msg" if $npc;	2329	$msg = $npc->name . " says: $msg" if $npc;
1461	$self->message ($msg, $flags);	2330	$self->message ($msg, $flags);
		2331	}
1462	}	2332	}
		2333	}
		2334
		2335	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2336
		2337	=cut
		2338
		2339	sub cf::object::send_msg {
		2340	my $pl = shift->contr
		2341	or return;
		2342	$pl->send_msg (@_);
1463	}	2343	}
1464		2344
1465	=item $player_object->may ("access")	2345	=item $player_object->may ("access")
1466		2346
1467	Returns wether the given player is authorized to access resource "access"	2347	Returns wether the given player is authorized to access resource "access"
…		…
1480		2360
1481	=item $player_object->enter_link	2361	=item $player_object->enter_link
1482		2362
1483	Freezes the player and moves him/her to a special map (C<{link}>).	2363	Freezes the player and moves him/her to a special map (C<{link}>).
1484		2364
1485	The player should be reaosnably safe there for short amounts of time. You	2365	The player should be reasonably safe there for short amounts of time. You
1486	I<MUST> call C<leave_link> as soon as possible, though.	2366	I<MUST> call C<leave_link> as soon as possible, though.
1487		2367
		2368	Will never block.
		2369
1488	=item $player_object->leave_link ($map, $x, $y)	2370	=item $player_object->leave_link ($map, $x, $y)
1489		2371
1490	Moves the player out of the specila link map onto the given map. If the	2372	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	2373	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	2374	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	2375	fails, to the emergency map position.
1494		2376
1495	Might block.	2377	Might block.
1496		2378
1497	=cut	2379	=cut
		2380
		2381	sub link_map {
		2382	unless ($LINK_MAP) {
		2383	$LINK_MAP = cf::map::find "{link}"
		2384	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2385	$LINK_MAP->load;
		2386	}
		2387
		2388	$LINK_MAP
		2389	}
1498		2390
1499	sub cf::object::player::enter_link {	2391	sub cf::object::player::enter_link {
1500	my ($self) = @_;	2392	my ($self) = @_;
1501		2393
1502	$self->deactivate_recursive;	2394	$self->deactivate_recursive;
1503		2395
1504	return if $self->map == $LINK_MAP;	2396	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		2397
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2398	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	2399	if $self->map && $self->map->{path} ne "{link}";
1508		2400
1509	$self->enter_map ($LINK_MAP, 20, 20);	2401	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1510	}	2402	}
1511		2403
1512	sub cf::object::player::leave_link {	2404	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	2405	my ($self, $map, $x, $y) = @_;
		2406
		2407	return unless $self->contr->active;
1514		2408
1515	my $link_pos = delete $self->{_link_pos};	2409	my $link_pos = delete $self->{_link_pos};
1516		2410
1517	unless ($map) {	2411	unless ($map) {
1518	# restore original map position	2412	# restore original map position
…		…
1532	# use -1 or undef as default coordinates, not 0, 0	2426	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	2427	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	2428	if $x <=0 && $y <= 0;
1535		2429
1536	$map->load;	2430	$map->load;
		2431	$map->load_neighbours;
1537		2432
		2433	return unless $self->contr->active;
1538	$self->activate_recursive;	2434	$self->activate_recursive;
		2435
		2436	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1539	$self->enter_map ($map, $x, $y);	2437	$self->enter_map ($map, $x, $y);
1540	}	2438	}
1541		2439
1542	cf::player->attach (	2440	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1543	on_logout => sub {
1544	my ($pl) = @_;
1545		2441
1546	# abort map switching before logout	2442	Moves the player to the given map-path and coordinates by first freezing
1547	if ($pl->ob->{_link_pos}) {	2443	her, loading and preparing them map, calling the provided $check callback
1548	cf::sync_job {	2444	that has to return the map if sucecssful, and then unfreezes the player on
1549	$pl->ob->leave_link	2445	the new (success) or old (failed) map position. In either case, $done will
1550	};	2446	be called at the end of this process.
1551	}
1552	},
1553	on_login => sub {
1554	my ($pl) = @_;
1555		2447
1556	# try to abort aborted map switching on player login :)
1557	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;
1560	cf::async {
1561	# we need this sleep as the login has a concurrent enter_exit running
1562	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;
1565	};
1566	}
1567	},
1568	);
1569
1570	=item $player_object->goto ($path, $x, $y)
1571
1572	=cut	2448	=cut
		2449
		2450	our $GOTOGEN;
1573		2451
1574	sub cf::object::player::goto {	2452	sub cf::object::player::goto {
1575	my ($self, $path, $x, $y) = @_;	2453	my ($self, $path, $x, $y, $check, $done) = @_;
		2454
		2455	# do generation counting so two concurrent goto's will be executed in-order
		2456	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1576		2457
1577	$self->enter_link;	2458	$self->enter_link;
1578		2459
1579	(cf::async {	2460	(async {
1580	$path = new cf::path $path;	2461	$Coro::current->{desc} = "player::goto $path $x $y";
1581		2462
1582	my $map = cf::map::find $path->as_string;	2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
		2467
		2468	# see if we actually can go there
		2469	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2470	$ob = $obs[rand @obs];
		2471	} else {
		2472	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2473	}
		2474	# else put us there anyways for now #d#
		2475
		2476	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2477	} else {
		2478	($path, $x, $y) = (undef, undef, undef);
		2479	}
		2480	}
		2481
		2482	my $map = eval {
		2483	my $map = defined $path ? cf::map::find $path : undef;
		2484
		2485	if ($map) {
1583	$map = $map->customise_for ($self) if $map;	2486	$map = $map->customise_for ($self);
1584		2487	$map = $check->($map) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	2488	} else {
1586	# if $map;
1587
1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2489	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	}
1589		2491
		2492	$map
		2493	};
		2494
		2495	if ($@) {
		2496	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2497	LOG llevError | logBacktrace, Carp::longmess $@;
		2498	}
		2499
		2500	if ($gen == $self->{_goto_generation}) {
		2501	delete $self->{_goto_generation};
1590	$self->leave_link ($map, $x, $y);	2502	$self->leave_link ($map, $x, $y);
		2503	}
		2504
		2505	$done->() if $done;
1591	})->prio (1);	2506	})->prio (1);
1592	}	2507	}
1593		2508
1594	=item $player_object->enter_exit ($exit_object)	2509	=item $player_object->enter_exit ($exit_object)
1595		2510
…		…
1597		2512
1598	sub parse_random_map_params {	2513	sub parse_random_map_params {
1599	my ($spec) = @_;	2514	my ($spec) = @_;
1600		2515
1601	my $rmp = { # defaults	2516	my $rmp = { # defaults
1602	xsize => 10,	2517	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2518	ysize => (cf::rndm 15, 40),
		2519	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2520	#layout => string,
1604	};	2521	};
1605		2522
1606	for (split /\n/, $spec) {	2523	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2524	my ($k, $v) = split /\s+/, $_, 2;
1608		2525
…		…
1612	$rmp	2529	$rmp
1613	}	2530	}
1614		2531
1615	sub prepare_random_map {	2532	sub prepare_random_map {
1616	my ($exit) = @_;	2533	my ($exit) = @_;
		2534
		2535	my $guard = cf::lock_acquire "exit_prepare:$exit";
1617		2536
1618	# all this does is basically replace the /! path by	2537	# all this does is basically replace the /! path by
1619	# a new random map path (?random/...) with a seed	2538	# a new random map path (?random/...) with a seed
1620	# that depends on the exit object	2539	# that depends on the exit object
1621		2540
1622	my $rmp = parse_random_map_params $exit->msg;	2541	my $rmp = parse_random_map_params $exit->msg;
1623		2542
1624	if ($exit->map) {	2543	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2544	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2545	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2546	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2547	$rmp->{origin_y} = $exit->y;
1629	}	2548	}
1630		2549
1631	$rmp->{random_seed} ||= $exit->random_seed;	2550	$rmp->{random_seed} ||= $exit->random_seed;
1632		2551
1633	my $data = cf::to_json $rmp;	2552	my $data = cf::to_json $rmp;
1634	my $md5 = Digest::MD5::md5_hex $data;	2553	my $md5 = Digest::MD5::md5_hex $data;
		2554	my $meta = "$RANDOMDIR/$md5.meta";
1635		2555
1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2556	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1637	aio_write $fh, 0, (length $data), $data, 0;	2557	aio_write $fh, 0, (length $data), $data, 0;
		2558	undef $fh;
		2559	aio_rename "$meta~", $meta;
1638		2560
1639	$exit->slaying ("?random/$md5");	2561	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2562	$exit->msg (undef);
1641	}	2563	}
1642	}	2564	}
…		…
1644	sub cf::object::player::enter_exit {	2566	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2567	my ($self, $exit) = @_;
1646		2568
1647	return unless $self->type == cf::PLAYER;	2569	return unless $self->type == cf::PLAYER;
1648		2570
		2571	if ($exit->slaying eq "/!") {
		2572	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2573	# the problem is that $exit might not survive long enough
		2574	# so it needs to be done right now, right here
		2575	cf::sync_job { prepare_random_map $exit };
		2576	}
		2577
		2578	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2579	my $hp = $exit->stats->hp;
		2580	my $sp = $exit->stats->sp;
		2581
1649	$self->enter_link;	2582	$self->enter_link;
1650		2583
		2584	# if exit is damned, update players death & WoR home-position
		2585	$self->contr->savebed ($slaying, $hp, $sp)
		2586	if $exit->flag (FLAG_DAMNED);
		2587
1651	(cf::async {	2588	(async {
		2589	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2590
1652	$self->deactivate_recursive; # just to be sure	2591	$self->deactivate_recursive; # just to be sure
1653	unless (eval {	2592	unless (eval {
1654	prepare_random_map $exit	2593	$self->goto ($slaying, $hp, $sp);
1655	if $exit->slaying eq "/!";
1656
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1659		2594
1660	1;	2595	1;
1661	}) {	2596	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2597	$self->message ("Something went wrong deep within the crossfire server. "
1663	. "I'll try to bring you back to the map you were before. "	2598	. "I'll try to bring you back to the map you were before. "
1664	. "Please report this to the dungeon master",	2599	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2600	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2601
1667	warn "ERROR in enter_exit: $@";	2602	warn "ERROR in enter_exit: $@";
1668	$self->leave_link;	2603	$self->leave_link;
1669	}	2604	}
1670	})->prio (1);	2605	})->prio (1);
…		…
1683		2618
1684	sub cf::client::send_drawinfo {	2619	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2620	my ($self, $text, $flags) = @_;
1686		2621
1687	utf8::encode $text;	2622	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2623	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2624	}
1690		2625
		2626	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2627
		2628	Send a drawinfo or msg packet to the client, formatting the msg for the
		2629	client if neccessary. C<$type> should be a string identifying the type of
		2630	the message, with C<log> being the default. If C<$color> is negative, suppress
		2631	the message unless the client supports the msg packet.
		2632
		2633	=cut
		2634
		2635	our %CHANNEL = (
		2636	"c/identify" => {
		2637	id => "infobox",
		2638	title => "Identify",
		2639	reply => undef,
		2640	tooltip => "Items recently identified",
		2641	},
		2642	"c/examine" => {
		2643	id => "infobox",
		2644	title => "Examine",
		2645	reply => undef,
		2646	tooltip => "Signs and other items you examined",
		2647	},
		2648	"c/lookat" => {
		2649	id => "infobox",
		2650	title => "Look",
		2651	reply => undef,
		2652	tooltip => "What you saw there",
		2653	},
		2654	);
		2655
		2656	sub cf::client::send_msg {
		2657	my ($self, $channel, $msg, $color, @extra) = @_;
		2658
		2659	$msg = $self->pl->expand_cfpod ($msg);
		2660
		2661	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2662
		2663	# check predefined channels, for the benefit of C
		2664	if ($CHANNEL{$channel}) {
		2665	$channel = $CHANNEL{$channel};
		2666
		2667	$self->ext_msg (channel_info => $channel)
		2668	if $self->can_msg;
		2669
		2670	$channel = $channel->{id};
		2671
		2672	} elsif (ref $channel) {
		2673	# send meta info to client, if not yet sent
		2674	unless (exists $self->{channel}{$channel->{id}}) {
		2675	$self->{channel}{$channel->{id}} = $channel;
		2676	$self->ext_msg (channel_info => $channel)
		2677	if $self->can_msg;
		2678	}
		2679
		2680	$channel = $channel->{id};
		2681	}
		2682
		2683	return unless @extra || length $msg;
		2684
		2685	if ($self->can_msg) {
		2686	# default colour, mask it out
		2687	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2688	if $color & cf::NDI_DEF;
		2689
		2690	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2691	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2692	} else {
		2693	if ($color >= 0) {
		2694	# replace some tags by gcfclient-compatible ones
		2695	for ($msg) {
		2696	1 while
		2697	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2698	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2699	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2700	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2701	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2702	}
		2703
		2704	$color &= cf::NDI_COLOR_MASK;
		2705
		2706	utf8::encode $msg;
		2707
		2708	if (0 && $msg =~ /\[/) {
		2709	# COMMAND/INFO
		2710	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2711	} else {
		2712	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2713	$self->send_packet ("drawinfo $color $msg")
		2714	}
		2715	}
		2716	}
		2717	}
		2718
		2719	=item $client->ext_msg ($type, @msg)
		2720
		2721	Sends an ext event to the client.
		2722
		2723	=cut
		2724
		2725	sub cf::client::ext_msg($$@) {
		2726	my ($self, $type, @msg) = @_;
		2727
		2728	if ($self->extcmd == 2) {
		2729	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2730	} elsif ($self->extcmd == 1) { # TODO: remove
		2731	push @msg, msgtype => "event_$type";
		2732	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2733	}
		2734	}
		2735
		2736	=item $client->ext_reply ($msgid, @msg)
		2737
		2738	Sends an ext reply to the client.
		2739
		2740	=cut
		2741
		2742	sub cf::client::ext_reply($$@) {
		2743	my ($self, $id, @msg) = @_;
		2744
		2745	if ($self->extcmd == 2) {
		2746	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2747	} elsif ($self->extcmd == 1) {
		2748	#TODO: version 1, remove
		2749	unshift @msg, msgtype => "reply", msgid => $id;
		2750	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2751	}
		2752	}
1691		2753
1692	=item $success = $client->query ($flags, "text", \&cb)	2754	=item $success = $client->query ($flags, "text", \&cb)
1693		2755
1694	Queues a query to the client, calling the given callback with	2756	Queues a query to the client, calling the given callback with
1695	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2757	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1696	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2758	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1697		2759
1698	Queries can fail, so check the return code. Or don't, as queries will become	2760	Queries can fail, so check the return code. Or don't, as queries will
1699	reliable at some point in the future.	2761	become reliable at some point in the future.
1700		2762
1701	=cut	2763	=cut
1702		2764
1703	sub cf::client::query {	2765	sub cf::client::query {
1704	my ($self, $flags, $text, $cb) = @_;	2766	my ($self, $flags, $text, $cb) = @_;
…		…
1712	utf8::encode $text;	2774	utf8::encode $text;
1713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2775	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1714		2776
1715	$self->send_packet ($self->{query_queue}[0][0])	2777	$self->send_packet ($self->{query_queue}[0][0])
1716	if @{ $self->{query_queue} } == 1;	2778	if @{ $self->{query_queue} } == 1;
		2779
		2780	1
1717	}	2781	}
1718		2782
1719	cf::client->attach (	2783	cf::client->attach (
		2784	on_connect => sub {
		2785	my ($ns) = @_;
		2786
		2787	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2788	},
1720	on_reply => sub {	2789	on_reply => sub {
1721	my ($ns, $msg) = @_;	2790	my ($ns, $msg) = @_;
1722		2791
1723	# this weird shuffling is so that direct followup queries	2792	# this weird shuffling is so that direct followup queries
1724	# get handled first	2793	# get handled first
1725	my $queue = delete $ns->{query_queue}	2794	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	2795	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		2796
1728	(shift @$queue)->[1]->($msg);	2797	(shift @$queue)->[1]->($msg);
		2798	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		2799
1730	push @{ $ns->{query_queue} }, @$queue;	2800	push @{ $ns->{query_queue} }, @$queue;
1731		2801
1732	if (@{ $ns->{query_queue} } == @$queue) {	2802	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	2803	if (@$queue) {
…		…
1735	} else {	2805	} else {
1736	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2806	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1737	}	2807	}
1738	}	2808	}
1739	},	2809	},
		2810	on_exticmd => sub {
		2811	my ($ns, $buf) = @_;
		2812
		2813	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2814
		2815	if (ref $msg) {
		2816	my ($type, $reply, @payload) =
		2817	"ARRAY" eq ref $msg
		2818	? @$msg
		2819	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2820
		2821	my @reply;
		2822
		2823	if (my $cb = $EXTICMD{$type}) {
		2824	@reply = $cb->($ns, @payload);
		2825	}
		2826
		2827	$ns->ext_reply ($reply, @reply)
		2828	if $reply;
		2829
		2830	} else {
		2831	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2832	}
		2833
		2834	cf::override;
		2835	},
1740	);	2836	);
1741		2837
1742	=item $client->coro (\&cb)	2838	=item $client->async (\&cb)
1743		2839
1744	Create a new coroutine, running the specified callback. The coroutine will	2840	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	2841	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	2842	or loss of connection).
1747		2843
1748	=cut	2844	=cut
1749		2845
1750	sub cf::client::coro {	2846	sub cf::client::async {
1751	my ($self, $cb) = @_;	2847	my ($self, $cb) = @_;
1752		2848
1753	my $coro = &cf::async ($cb);	2849	my $coro = &Coro::async ($cb);
1754		2850
1755	$coro->on_destroy (sub {	2851	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	2852	delete $self->{_coro}{$coro+0};
1757	});	2853	});
1758		2854
…		…
1785	our $safe = new Safe "safe";	2881	our $safe = new Safe "safe";
1786	our $safe_hole = new Safe::Hole;	2882	our $safe_hole = new Safe::Hole;
1787		2883
1788	$SIG{FPE} = 'IGNORE';	2884	$SIG{FPE} = 'IGNORE';
1789		2885
1790	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2886	$safe->permit_only (Opcode::opset qw(
		2887	:base_core :base_mem :base_orig :base_math
		2888	grepstart grepwhile mapstart mapwhile
		2889	sort time
		2890	));
1791		2891
1792	# here we export the classes and methods available to script code	2892	# here we export the classes and methods available to script code
1793		2893
1794	=pod	2894	=pod
1795		2895
1796	The following fucntions and emthods are available within a safe environment:	2896	The following functions and methods are available within a safe environment:
1797		2897
1798	cf::object contr pay_amount pay_player map	2898	cf::object
		2899	contr pay_amount pay_player map x y force_find force_add
		2900	insert remove name archname title slaying race decrease_ob_nr
		2901
1799	cf::object::player player	2902	cf::object::player
1800	cf::player peaceful	2903	player
1801	cf::map trigger	2904
		2905	cf::player
		2906	peaceful
		2907
		2908	cf::map
		2909	trigger
1802		2910
1803	=cut	2911	=cut
1804		2912
1805	for (	2913	for (
1806	["cf::object" => qw(contr pay_amount pay_player map)],	2914	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2915	insert remove inv name archname title slaying race
		2916	decrease_ob_nr)],
1807	["cf::object::player" => qw(player)],	2917	["cf::object::player" => qw(player)],
1808	["cf::player" => qw(peaceful)],	2918	["cf::player" => qw(peaceful)],
1809	["cf::map" => qw(trigger)],	2919	["cf::map" => qw(trigger)],
1810	) {	2920	) {
1811	no strict 'refs';	2921	no strict 'refs';
…		…
1882	=back	2992	=back
1883		2993
1884	=cut	2994	=cut
1885		2995
1886	#############################################################################	2996	#############################################################################
		2997	# the server's init and main functions
1887		2998
1888	=head2 EXTENSION DATABASE SUPPORT	2999	sub load_facedata($) {
		3000	my ($path) = @_;
1889		3001
1890	Crossfire maintains a very simple database for extension use. It can	3002	# HACK to clear player env face cache, we need some signal framework
1891	currently store anything that can be serialised using Storable, which	3003	# for this (global event?)
1892	excludes objects.	3004	%ext::player_env::MUSIC_FACE_CACHE = ();
1893		3005
1894	The parameter C<$family> should best start with the name of the extension	3006	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1895	using it, it should be unique.
1896		3007
1897	=over 4	3008	warn "loading facedata from $path\n";
1898		3009
1899	=item $hashref = cf::db_get $family	3010	my $facedata;
		3011	0 < aio_load $path, $facedata
		3012	or die "$path: $!";
1900		3013
1901	Return a hashref for use by the extension C<$family>, which can be	3014	$facedata = Coro::Storable::thaw $facedata;
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904		3015
1905	=item $value = cf::db_get $family => $key	3016	$facedata->{version} == 2
		3017	or cf::cleanup "$path: version mismatch, cannot proceed.";
1906		3018
1907	Returns a single value from the database	3019	# patch in the exptable
1908		3020	$facedata->{resource}{"res/exp_table"} = {
1909	=item cf::db_put $family => $hashref	3021	type => FT_RSRC,
1910		3022	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1911	Stores the given family hashref into the database. Updates are delayed, if
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_put $family => $key => $value
1915
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926
1927	=cut
1928
1929	our $DB;
1930
1931	{
1932	my $path = cf::localdir . "/database.pst";
1933
1934	sub db_load() {
1935	$DB = stat $path ? Storable::retrieve $path : { };
1936	}
1937
1938	my $pid;
1939
1940	sub db_save() {
1941	waitpid $pid, 0 if $pid;
1942	if (0 == ($pid = fork)) {
1943	$DB->{_meta}{version} = 1;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});	3023	};
		3024	cf::cede_to_tick;
1960		3025
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}	3026	{
		3027	my $faces = $facedata->{faceinfo};
1965		3028
1966	sub db_get($;$) {	3029	while (my ($face, $info) = each %$faces) {
1967	@_ >= 2	3030	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1968	? $DB->{$_[0]}{$_[1]}	3031	cf::face::set_visibility $idx, $info->{visibility};
1969	: ($DB->{$_[0]} ||= { })	3032	cf::face::set_magicmap $idx, $info->{magicmap};
1970	}	3033	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3034	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1971		3035
1972	sub db_put($$;$) {	3036	cf::cede_to_tick;
1973	if (@_ >= 3) {
1974	$DB->{$_[0]}{$_[1]} = $_[2];
1975	} else {
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980
1981	cf::global->attach (
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	3037	}
1986	);
1987	}
1988		3038
1989	#############################################################################	3039	while (my ($face, $info) = each %$faces) {
1990	# the server's main()	3040	next unless $info->{smooth};
		3041	my $idx = cf::face::find $face
		3042	or next;
		3043	if (my $smooth = cf::face::find $info->{smooth}) {
		3044	cf::face::set_smooth $idx, $smooth;
		3045	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3046	} else {
		3047	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3048	}
1991		3049
1992	sub cfg_load {	3050	cf::cede_to_tick;
		3051	}
		3052	}
		3053
		3054	{
		3055	my $anims = $facedata->{animinfo};
		3056
		3057	while (my ($anim, $info) = each %$anims) {
		3058	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3059	cf::cede_to_tick;
		3060	}
		3061
		3062	cf::anim::invalidate_all; # d'oh
		3063	}
		3064
		3065	{
		3066	# TODO: for gcfclient pleasure, we should give resources
		3067	# that gcfclient doesn't grok a >10000 face index.
		3068	my $res = $facedata->{resource};
		3069
		3070	my $soundconf = delete $res->{"res/sound.conf"};
		3071
		3072	while (my ($name, $info) = each %$res) {
		3073	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3074	my $data;
		3075
		3076	if ($info->{type} & 1) {
		3077	# prepend meta info
		3078
		3079	my $meta = $enc->encode ({
		3080	name => $name,
		3081	%{ $info->{meta} || {} },
		3082	});
		3083
		3084	$data = pack "(w/a*)*", $meta, $info->{data};
		3085	} else {
		3086	$data = $info->{data};
		3087	}
		3088
		3089	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3090	cf::face::set_type $idx, $info->{type};
		3091
		3092	cf::cede_to_tick;
		3093	}
		3094
		3095	if ($soundconf) {
		3096	$soundconf = $enc->decode (delete $soundconf->{data});
		3097
		3098	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3099	my $sound = $soundconf->{compat}[$_]
		3100	or next;
		3101
		3102	my $face = cf::face::find "sound/$sound->[1]";
		3103	cf::sound::set $sound->[0] => $face;
		3104	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3105	}
		3106
		3107	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3108	my $face = cf::face::find "sound/$v";
		3109	cf::sound::set $k => $face;
		3110	}
		3111	}
		3112	}
		3113
		3114	1
		3115	}
		3116
		3117	register_exticmd fx_want => sub {
		3118	my ($ns, $want) = @_;
		3119
		3120	while (my ($k, $v) = each %$want) {
		3121	$ns->fx_want ($k, $v);
		3122	}
		3123	};
		3124
		3125	sub reload_regions {
		3126	# HACK to clear player env face cache, we need some signal framework
		3127	# for this (global event?)
		3128	%ext::player_env::MUSIC_FACE_CACHE = ();
		3129
		3130	load_resource_file "$MAPDIR/regions"
		3131	or die "unable to load regions file\n";
		3132
		3133	for (cf::region::list) {
		3134	$_->{match} = qr/$_->{match}/
		3135	if exists $_->{match};
		3136	}
		3137	}
		3138
		3139	sub reload_facedata {
		3140	load_facedata "$DATADIR/facedata"
		3141	or die "unable to load facedata\n";
		3142	}
		3143
		3144	sub reload_archetypes {
		3145	load_resource_file "$DATADIR/archetypes"
		3146	or die "unable to load archetypes\n";
		3147	#d# NEED to laod twice to resolve forward references
		3148	# this really needs to be done in an extra post-pass
		3149	# (which needs to be synchronous, so solve it differently)
		3150	load_resource_file "$DATADIR/archetypes"
		3151	or die "unable to load archetypes\n";
		3152	}
		3153
		3154	sub reload_treasures {
		3155	load_resource_file "$DATADIR/treasures"
		3156	or die "unable to load treasurelists\n";
		3157	}
		3158
		3159	sub reload_resources {
		3160	warn "reloading resource files...\n";
		3161
		3162	reload_regions;
		3163	reload_facedata;
		3164	#reload_archetypes;#d#
		3165	reload_archetypes;
		3166	reload_treasures;
		3167
		3168	warn "finished reloading resource files\n";
		3169	}
		3170
		3171	sub init {
		3172	reload_resources;
		3173	}
		3174
		3175	sub reload_config {
1993	open my $fh, "<:utf8", cf::confdir . "/config"	3176	open my $fh, "<:utf8", "$CONFDIR/config"
1994	or return;	3177	or return;
1995		3178
1996	local $/;	3179	local $/;
1997	*CFG = YAML::Syck::Load <$fh>;	3180	*CFG = YAML::Syck::Load <$fh>;
1998		3181
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3182	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2000		3183
		3184	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3185	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3186
2001	if (exists $CFG{mlockall}) {	3187	if (exists $CFG{mlockall}) {
2002	eval {	3188	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	3189	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	3190	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	3191	};
2006	warn $@ if $@;	3192	warn $@ if $@;
2007	}	3193	}
2008	}	3194	}
2009		3195
2010	sub main {	3196	sub main {
2011	# we must not ever block the main coroutine	3197	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	3198	local $Coro::idle = sub {
2013	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3199	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2014	(Coro::unblock_sub {	3200	(async {
		3201	$Coro::current->{desc} = "IDLE BUG HANDLER";
2015	Event::one_event;	3202	Event::one_event;
2016	})->();	3203	})->prio (Coro::PRIO_MAX);
2017	};	3204	};
2018		3205
2019	cfg_load;	3206	reload_config;
2020	db_load;	3207	db_init;
2021	load_extensions;	3208	load_extensions;
		3209
		3210	$TICK_WATCHER->start;
2022	Event::loop;	3211	Event::loop;
2023	}	3212	}
2024		3213
2025	#############################################################################	3214	#############################################################################
2026	# initialisation	3215	# initialisation and cleanup
2027		3216
		3217	# install some emergency cleanup handlers
		3218	BEGIN {
		3219	for my $signal (qw(INT HUP TERM)) {
		3220	Event->signal (
		3221	reentrant => 0,
		3222	data => WF_AUTOCANCEL,
		3223	signal => $signal,
		3224	prio => 0,
		3225	cb => sub {
		3226	cf::cleanup "SIG$signal";
		3227	},
		3228	);
		3229	}
		3230	}
		3231
		3232	sub write_runtime {
		3233	my $runtime = "$LOCALDIR/runtime";
		3234
		3235	# first touch the runtime file to show we are still running:
		3236	# the fsync below can take a very very long time.
		3237
		3238	IO::AIO::aio_utime $runtime, undef, undef;
		3239
		3240	my $guard = cf::lock_acquire "write_runtime";
		3241
		3242	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3243	or return;
		3244
		3245	my $value = $cf::RUNTIME + 90 + 10;
		3246	# 10 is the runtime save interval, for a monotonic clock
		3247	# 60 allows for the watchdog to kill the server.
		3248
		3249	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3250	and return;
		3251
		3252	# always fsync - this file is important
		3253	aio_fsync $fh
		3254	and return;
		3255
		3256	# touch it again to show we are up-to-date
		3257	aio_utime $fh, undef, undef;
		3258
		3259	close $fh
		3260	or return;
		3261
		3262	aio_rename "$runtime~", $runtime
		3263	and return;
		3264
		3265	warn "runtime file written.\n";
		3266
		3267	1
		3268	}
		3269
		3270	sub emergency_save() {
		3271	my $freeze_guard = cf::freeze_mainloop;
		3272
		3273	warn "enter emergency perl save\n";
		3274
		3275	cf::sync_job {
		3276	# use a peculiar iteration method to avoid tripping on perl
		3277	# refcount bugs in for. also avoids problems with players
		3278	# and maps saved/destroyed asynchronously.
		3279	warn "begin emergency player save\n";
		3280	for my $login (keys %cf::PLAYER) {
		3281	my $pl = $cf::PLAYER{$login} or next;
		3282	$pl->valid or next;
		3283	$pl->save;
		3284	}
		3285	warn "end emergency player save\n";
		3286
		3287	warn "begin emergency map save\n";
		3288	for my $path (keys %cf::MAP) {
		3289	my $map = $cf::MAP{$path} or next;
		3290	$map->valid or next;
		3291	$map->save;
		3292	}
		3293	warn "end emergency map save\n";
		3294
		3295	warn "begin emergency database checkpoint\n";
		3296	BDB::db_env_txn_checkpoint $DB_ENV;
		3297	warn "end emergency database checkpoint\n";
		3298	};
		3299
		3300	warn "leave emergency perl save\n";
		3301	}
		3302
		3303	sub post_cleanup {
		3304	my ($make_core) = @_;
		3305
		3306	warn Carp::longmess "post_cleanup backtrace"
		3307	if $make_core;
		3308	}
		3309
2028	sub reload() {	3310	sub do_reload_perl() {
2029	# can/must only be called in main	3311	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	3312	if ($Coro::current != $Coro::main) {
2031	warn "can only reload from main coroutine\n";	3313	warn "can only reload from main coroutine";
2032	return;	3314	return;
2033	}	3315	}
2034		3316
2035	warn "reloading...";	3317	warn "reloading...";
2036		3318
2037	my $guard = freeze_mainloop;	3319	warn "entering sync_job";
		3320
		3321	cf::sync_job {
		3322	cf::write_runtime; # external watchdog should not bark
2038	cf::emergency_save;	3323	cf::emergency_save;
		3324	cf::write_runtime; # external watchdog should not bark
2039		3325
2040	eval {	3326	warn "syncing database to disk";
		3327	BDB::db_env_txn_checkpoint $DB_ENV;
		3328
2041	# if anything goes wrong in here, we should simply crash as we already saved	3329	# if anything goes wrong in here, we should simply crash as we already saved
2042		3330
2043	# cancel all watchers	3331	warn "cancelling all WF_AUTOCANCEL watchers";
2044	for (Event::all_watchers) {	3332	for (Event::all_watchers) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;	3333	$_->cancel if $_->data & WF_AUTOCANCEL;
2046	}	3334	}
2047		3335
		3336	warn "flushing outstanding aio requests";
		3337	for (;;) {
		3338	BDB::flush;
		3339	IO::AIO::flush;
		3340	Coro::cede;
		3341	last unless IO::AIO::nreqs || BDB::nreqs;
		3342	warn "iterate...";
		3343	}
		3344
		3345	++$RELOAD;
		3346
2048	# cancel all extension coros	3347	warn "cancelling all extension coros";
2049	$_->cancel for values %EXT_CORO;	3348	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	3349	%EXT_CORO = ();
2051		3350
2052	# unload all extensions	3351	warn "removing commands";
2053	for (@exts) {	3352	%COMMAND = ();
		3353
		3354	warn "removing ext/exti commands";
		3355	%EXTCMD = ();
		3356	%EXTICMD = ();
		3357
		3358	warn "unloading/nuking all extensions";
		3359	for my $pkg (@EXTS) {
2054	warn "unloading <$_>";	3360	warn "... unloading $pkg";
2055	unload_extension $_;	3361
		3362	if (my $cb = $pkg->can ("unload")) {
		3363	eval {
		3364	$cb->($pkg);
		3365	1
		3366	} or warn "$pkg unloaded, but with errors: $@";
2056	}	3367	}
2057		3368
		3369	warn "... nuking $pkg";
		3370	Symbol::delete_package $pkg;
		3371	}
		3372
2058	# unload all modules loaded from $LIBDIR	3373	warn "unloading all perl modules loaded from $LIBDIR";
2059	while (my ($k, $v) = each %INC) {	3374	while (my ($k, $v) = each %INC) {
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3375	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061		3376
2062	warn "removing <$k>";	3377	warn "... unloading $k";
2063	delete $INC{$k};	3378	delete $INC{$k};
2064		3379
2065	$k =~ s/\.pm$//;	3380	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;	3381	$k =~ s/\//::/g;
2067		3382
…		…
2070	}	3385	}
2071		3386
2072	Symbol::delete_package $k;	3387	Symbol::delete_package $k;
2073	}	3388	}
2074		3389
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	3390	warn "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	3391	Symbol::delete_package "safe::$_"
2081	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3392	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2082		3393
2083	# remove register_script_function callbacks
2084	# TODO
2085
2086	# unload cf.pm "a bit"	3394	warn "unloading cf.pm \"a bit\"";
2087	delete $INC{"cf.pm"};	3395	delete $INC{"cf.pm"};
		3396	delete $INC{"cf/pod.pm"};
2088		3397
2089	# don't, removes xs symbols, too,	3398	# don't, removes xs symbols, too,
2090	# and global variables created in xs	3399	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	3400	#Symbol::delete_package __PACKAGE__;
2092		3401
2093	# reload cf.pm	3402	warn "unload completed, starting to reload now";
		3403
2094	warn "reloading cf.pm";	3404	warn "reloading cf.pm";
2095	require cf;	3405	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3406	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2097		3407
2098	# load config and database again	3408	warn "loading config and database again";
2099	cf::cfg_load;	3409	cf::reload_config;
2100	cf::db_load;
2101		3410
2102	# load extensions
2103	warn "load extensions";	3411	warn "loading extensions";
2104	cf::load_extensions;	3412	cf::load_extensions;
2105		3413
2106	# reattach attachments to objects	3414	warn "reattaching attachments to objects/players";
2107	warn "reattach";	3415	_global_reattach; # objects, sockets
2108	_global_reattach;	3416	warn "reattaching attachments to maps";
2109	};	3417	reattach $_ for values %MAP;
		3418	warn "reattaching attachments to players";
		3419	reattach $_ for values %PLAYER;
2110		3420
2111	if ($@) {	3421	warn "leaving sync_job";
		3422
		3423	1
		3424	} or do {
2112	warn $@;	3425	warn $@;
2113	warn "error while reloading, exiting.";	3426	warn "error while reloading, exiting.";
2114	exit 1;	3427	exit 1;
2115	}	3428	};
2116		3429
2117	warn "reloaded successfully";	3430	warn "reloaded";
2118	};	3431	};
2119		3432
2120	#############################################################################	3433	our $RELOAD_WATCHER; # used only during reload
2121		3434
2122	unless ($LINK_MAP) {	3435	sub reload_perl() {
2123	$LINK_MAP = cf::map::new;	3436	# doing reload synchronously and two reloads happen back-to-back,
		3437	# coro crashes during coro_state_free->destroy here.
2124		3438
2125	$LINK_MAP->width (41);	3439	$RELOAD_WATCHER ||= Event->timer (
2126	$LINK_MAP->height (41);	3440	reentrant => 0,
2127	$LINK_MAP->alloc;
2128	$LINK_MAP->path ("{link}");
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,	3441	after => 0,
		3442	data => WF_AUTOCANCEL,
2135	cb => sub {	3443	cb => sub {
2136	$_[0]->w->cancel;	3444	do_reload_perl;
2137		3445	undef $RELOAD_WATCHER;
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});	3446	},
2156		3447	);
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	3448	}
2162
2163	register "<global>", __PACKAGE__;
2164		3449
2165	register_command "reload" => sub {	3450	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	3451	my ($who, $arg) = @_;
2167		3452
2168	if ($who->flag (FLAG_WIZ)) {	3453	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	3454	$who->message ("reloading server.");
		3455	async {
		3456	$Coro::current->{desc} = "perl_reload";
		3457	reload_perl;
		3458	};
2172	}	3459	}
2173	};	3460	};
2174		3461
2175	unshift @INC, $LIBDIR;	3462	unshift @INC, $LIBDIR;
		3463
		3464	my $bug_warning = 0;
		3465
		3466	our @WAIT_FOR_TICK;
		3467	our @WAIT_FOR_TICK_BEGIN;
		3468
		3469	sub wait_for_tick {
		3470	return unless $TICK_WATCHER->is_active;
		3471	return if $Coro::current == $Coro::main;
		3472
		3473	my $signal = new Coro::Signal;
		3474	push @WAIT_FOR_TICK, $signal;
		3475	$signal->wait;
		3476	}
		3477
		3478	sub wait_for_tick_begin {
		3479	return unless $TICK_WATCHER->is_active;
		3480	return if $Coro::current == $Coro::main;
		3481
		3482	my $signal = new Coro::Signal;
		3483	push @WAIT_FOR_TICK_BEGIN, $signal;
		3484	$signal->wait;
		3485	}
2176		3486
2177	$TICK_WATCHER = Event->timer (	3487	$TICK_WATCHER = Event->timer (
2178	reentrant => 0,	3488	reentrant => 0,
		3489	parked => 1,
2179	prio => 0,	3490	prio => 0,
2180	at => $NEXT_TICK || $TICK,	3491	at => $NEXT_TICK || $TICK,
2181	data => WF_AUTOCANCEL,	3492	data => WF_AUTOCANCEL,
2182	cb => sub {	3493	cb => sub {
		3494	if ($Coro::current != $Coro::main) {
		3495	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3496	unless ++$bug_warning > 10;
		3497	return;
		3498	}
		3499
		3500	$NOW = $tick_start = Event::time;
		3501
2183	cf::server_tick; # one server iteration	3502	cf::server_tick; # one server iteration
		3503
2184	$RUNTIME += $TICK;	3504	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;	3505	$NEXT_TICK += $TICK;
2186		3506
		3507	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3508	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3509	Coro::async_pool {
		3510	$Coro::current->{desc} = "runtime saver";
		3511	write_runtime
		3512	or warn "ERROR: unable to write runtime file: $!";
		3513	};
		3514	}
		3515
		3516	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3517	$sig->send;
		3518	}
		3519	while (my $sig = shift @WAIT_FOR_TICK) {
		3520	$sig->send;
		3521	}
		3522
		3523	$NOW = Event::time;
		3524
2187	# if we are delayed by four ticks or more, skip them all	3525	# if we are delayed by four ticks or more, skip them all
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3526	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2189		3527
2190	$TICK_WATCHER->at ($NEXT_TICK);	3528	$TICK_WATCHER->at ($NEXT_TICK);
2191	$TICK_WATCHER->start;	3529	$TICK_WATCHER->start;
		3530
		3531	$LOAD = ($NOW - $tick_start) / $TICK;
		3532	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3533
		3534	_post_tick;
2192	},	3535	},
2193	);	3536	);
2194		3537
		3538	{
		3539	BDB::min_parallel 8;
2195	IO::AIO::max_poll_time $TICK * 0.2;	3540	BDB::max_poll_time $TICK * 0.1;
2196		3541	$BDB_POLL_WATCHER = Event->io (
2197	Event->io (	3542	reentrant => 0,
2198	fd => IO::AIO::poll_fileno,	3543	fd => BDB::poll_fileno,
2199	poll => 'r',	3544	poll => 'r',
2200	prio => 5,	3545	prio => 0,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,	3546	data => WF_AUTOCANCEL,
		3547	cb => \&BDB::poll_cb,
		3548	);
		3549
		3550	BDB::set_sync_prepare {
		3551	my $status;
		3552	my $current = $Coro::current;
		3553	(
		3554	sub {
		3555	$status = $!;
		3556	$current->ready; undef $current;
		3557	},
		3558	sub {
		3559	Coro::schedule while defined $current;
		3560	$! = $status;
		3561	},
		3562	)
		3563	};
		3564
		3565	unless ($DB_ENV) {
		3566	$DB_ENV = BDB::db_env_create;
		3567	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3568	| BDB::LOG_AUTOREMOVE, 1);
		3569	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3570	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3571
		3572	cf::sync_job {
		3573	eval {
		3574	BDB::db_env_open
		3575	$DB_ENV,
		3576	$BDBDIR,
		3577	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3578	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3579	0666;
		3580
		3581	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3582	};
		3583
		3584	cf::cleanup "db_env_open(db): $@" if $@;
		3585	};
		3586	}
		3587
		3588	$BDB_DEADLOCK_WATCHER = Event->timer (
2207	after => 0,	3589	after => 3,
2208	interval => 10,	3590	interval => 1,
		3591	hard => 1,
		3592	prio => 0,
		3593	data => WF_AUTOCANCEL,
2209	cb => sub {	3594	cb => sub {
2210	(Coro::unblock_sub {	3595	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2211	write_runtime	3596	},
2212	or warn "ERROR: unable to write runtime file: $!";	3597	);
		3598	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3599	after => 11,
		3600	interval => 60,
		3601	hard => 1,
		3602	prio => 0,
		3603	data => WF_AUTOCANCEL,
		3604	cb => sub {
		3605	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3606	},
		3607	);
		3608	$BDB_TRICKLE_WATCHER = Event->timer (
		3609	after => 5,
		3610	interval => 10,
		3611	hard => 1,
		3612	prio => 0,
		3613	data => WF_AUTOCANCEL,
		3614	cb => sub {
		3615	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3616	},
		3617	);
		3618	}
		3619
		3620	{
		3621	IO::AIO::min_parallel 8;
		3622
		3623	undef $Coro::AIO::WATCHER;
		3624	IO::AIO::max_poll_time $TICK * 0.1;
		3625	$AIO_POLL_WATCHER = Event->io (
		3626	reentrant => 0,
		3627	data => WF_AUTOCANCEL,
		3628	fd => IO::AIO::poll_fileno,
		3629	poll => 'r',
		3630	prio => 0,
		3631	cb => \&IO::AIO::poll_cb,
		3632	);
		3633	}
		3634
		3635	my $_log_backtrace;
		3636
		3637	sub _log_backtrace {
		3638	my ($msg, @addr) = @_;
		3639
		3640	$msg =~ s/\n//;
		3641
		3642	# limit the # of concurrent backtraces
		3643	if ($_log_backtrace < 2) {
		3644	++$_log_backtrace;
		3645	async {
		3646	$Coro::current->{desc} = "abt $msg";
		3647
		3648	my @bt = fork_call {
		3649	@addr = map { sprintf "%x", $_ } @addr;
		3650	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3651	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3652	or die "addr2line: $!";
		3653
		3654	my @funcs;
		3655	my @res = <$fh>;
		3656	chomp for @res;
		3657	while (@res) {
		3658	my ($func, $line) = splice @res, 0, 2, ();
		3659	push @funcs, "[$func] $line";
		3660	}
		3661
		3662	@funcs
		3663	};
		3664
		3665	LOG llevInfo, "[ABT] $msg\n";
		3666	LOG llevInfo, "[ABT] $_\n" for @bt;
		3667	--$_log_backtrace;
2213	})->();	3668	};
		3669	} else {
		3670	LOG llevInfo, "[ABT] $msg\n";
		3671	LOG llevInfo, "[ABT] [suppressed]\n";
2214	},	3672	}
2215	);	3673	}
		3674
		3675	# load additional modules
		3676	use cf::pod;
2216		3677
2217	END { cf::emergency_save }	3678	END { cf::emergency_save }
2218		3679
2219	1	3680	1
2220		3681

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