ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.123 by root, Tue Jan 2 19:18:33 2007 UTC vs.
Revision 1.389 by root, Sat Oct 20 04:39:57 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3;	15	use Coro 4.1 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	97	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	98
56	our %EXT_CORO;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
57		105
58	binmode STDOUT;	106	binmode STDOUT;
59	binmode STDERR;	107	binmode STDERR;
60		108
61	# read virtual server time, if available	109	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
66	}	114	}
67		115
68	mkdir cf::localdir;	116	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		118
74	# a special map that is always available	119	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		120
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	121	sub cf::map::normalise;
78		122
79	#############################################################################	123	#############################################################################
80		124
81	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
82		126
…		…
89	=item $cf::RUNTIME	133	=item $cf::RUNTIME
90		134
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	136	every server tick.
93		137
94	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		141
96	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
98		146
99	=item $cf::NOW	147	=item $cf::NOW
100		148
101	The time of the last (current) server tick.	149	The time of the last (current) server tick.
102		150
103	=item $cf::TICK	151	=item $cf::TICK
104		152
105	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
106		164
107	=item %cf::CFG	165	=item %cf::CFG
108		166
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
111		181
112	=back	182	=back
113		183
114	=cut	184	=cut
115		185
116	BEGIN {	186	BEGIN {
117	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	188	my $msg = join "", @_;
119	utf8::encode $msg;
120		189
121	$msg .= "\n"	190	$msg .= "\n"
122	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
123		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
124	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
125	};	196	};
126	}	197	}
127		198
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		206
135	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	208	# within the Safe compartment.
137	for my $pkg (qw(	209	for my $pkg (qw(
138	cf::global cf::attachable	210	cf::global cf::attachable
…		…
147		219
148	$Event::DIED = sub {	220	$Event::DIED = sub {
149	warn "error in event callback: @_";	221	warn "error in event callback: @_";
150	};	222	};
151		223
152	my %ext_pkg;	224	#############################################################################
153	my @exts;
154	my @hook;
155		225
156	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
157		227
158	=over 4	228	=over 4
159		229
160	=cut	230	=item dumpval $ref
161		231
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
163		252
164	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
165		254
166	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
167		256
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
176		258
177	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
178		260
179	=cut	261	=cut
180		262
181	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		264
186	=item my $guard = cf::guard { BLOCK }	265	sub to_json ($) { $json_coder->encode ($_[0]) }
187		266	sub from_json ($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		267
208	=item cf::lock_wait $string	268	=item cf::lock_wait $string
209		269
210	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
211		271
212	=item my $lock = cf::lock_acquire $string	272	=item my $lock = cf::lock_acquire $string
213		273
214	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
217	returned.	277	returned.
218		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
219	Lock names should begin with a unique identifier (for example, find_map	282	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	283	uses map_find and cf::map::load uses map_load).
		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
221		288
222	=cut	289	=cut
223		290
224	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
225		293
226	sub lock_wait($) {	294	sub lock_wait($) {
227	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
228		301
229	# wait for lock, if any	302	# wait for lock, if any
230	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;	305	Coro::schedule;
…		…
238		311
239	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
240	lock_wait $key;	313	lock_wait $key;
241		314
242	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
243		317
244	cf::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
245	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
247	}	322	}
248	}	323	}
249		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
		331	sub freeze_mainloop {
		332	return unless $TICK_WATCHER->is_active;
		333
		334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
		337	$TICK_WATCHER->stop;
		338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
		399	=item cf::async { BLOCK }
		400
		401	Currently the same as Coro::async_pool, meaning you cannot use
		402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		403	thing you are allowed to do is call C<prio> on it.
		404
		405	=cut
		406
		407	BEGIN { *async = \&Coro::async_pool }
		408
250	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
251		410
252	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Crossfire TRT is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
255		415
256	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
259	fast or be very important.	419	fast or be very important.
…		…
262		422
263	sub sync_job(&) {	423	sub sync_job(&) {
264	my ($job) = @_;	424	my ($job) = @_;
265		425
266	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
267	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
269		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
270	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	435	# (but this is cancel-safe)
272	local $FREEZE = 1;	436	my $freeze_guard = freeze_mainloop;
273		437
274	my $busy = 1;	438	my $busy = 1;
275	my @res;	439	my @res;
276		440
277	(Coro::async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	443	@res = eval { $job->() };
279	warn $@ if $@;	444	warn $@ if $@;
280	undef $busy;	445	undef $busy;
281	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
282		447
283	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
284	Coro::cede_notself;	450	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	451	} else {
		452	Event::one_event;
286	}	453	}
		454	}
		455
		456	$time = Event::time - $time;
		457
		458	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		459	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		460
		461	$tick_start += $time; # do not account sync jobs to server load
287		462
288	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
289	} else {	464	} else {
290	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
291		466
292	$job->()	467	$job->()
293	}	468	}
294	}	469	}
295		470
296	=item $coro = cf::coro { BLOCK }	471	=item $coro = cf::async_ext { BLOCK }
297		472
298	Creates and returns a new coro. This coro is automcatially being canceled	473	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	474	extension calling this is being unloaded.
300		475
301	=cut	476	=cut
302		477
303	sub coro(&) {	478	sub async_ext(&) {
304	my $cb = shift;	479	my $cb = shift;
305		480
306	my $coro; $coro = async {	481	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		482
313	$coro->on_destroy (sub {	483	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	484	delete $EXT_CORO{$coro+0};
315	});	485	});
316	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
317		487
318	$coro	488	$coro
319	}	489	}
320		490
321	sub write_runtime {	491	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		492
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	493	Executes the given code block with the given arguments in a seperate
325	or return;	494	process, returning the results. Everything must be serialisable with
		495	Coro::Storable. May, of course, block. Note that the executed sub may
		496	never block itself or use any form of Event handling.
326		497
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	498	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		499
331	aio_fsync $fh	500	sub fork_call(&@) {
332	and return;	501	my ($cb, @args) = @_;
333		502
334	close $fh	503	# we seemingly have to make a local copy of the whole thing,
335	or return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
336		506
337	aio_rename "$runtime~", $runtime	507	my @res = Coro::Util::fork_eval {
338	and return;	508	reset_signals;
		509	&$cb
		510	}, @args;
339		511
		512	wantarray ? @res : $res[-1]
		513	}
		514
		515	=item $value = cf::db_get $family => $key
		516
		517	Returns a single value from the environment database.
		518
		519	=item cf::db_put $family => $key => $value
		520
		521	Stores the given C<$value> in the family. It can currently store binary
		522	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		523
		524	=item $db = cf::db_table "name"
		525
		526	Create and/or open a new database table. The string must not be "db" and must be unique
		527	within each server.
		528
		529	=cut
		530
		531	sub db_table($) {
		532	my ($name) = @_;
		533	my $db = BDB::db_create $DB_ENV;
		534
		535	eval {
		536	$db->set_flags (BDB::CHKSUM);
		537
		538	utf8::encode $name;
		539	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		540	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		541	cf::cleanup "db_open(db): $!" if $!;
		542	};
		543	cf::cleanup "db_open(db): $@" if $@;
		544
		545	$db
		546	}
		547
		548	our $DB;
		549
		550	sub db_init {
		551	cf::sync_job {
		552	$DB ||= db_table "db";
		553	};
		554	}
		555
		556	sub db_get($$) {
		557	my $key = "$_[0]/$_[1]";
		558
		559	cf::sync_job {
		560	BDB::db_get $DB, undef, $key, my $data;
		561
		562	$! ? ()
		563	: $data
340	1	564	}
		565	}
		566
		567	sub db_put($$$) {
		568	BDB::dbreq_pri 4;
		569	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		570	}
		571
		572	=item cf::cache $id => [$paths...], $processversion => $process
		573
		574	Generic caching function that returns the value of the resource $id,
		575	caching and regenerating as required.
		576
		577	This function can block.
		578
		579	=cut
		580
		581	sub cache {
		582	my ($id, $src, $processversion, $process) = @_;
		583
		584	my $meta =
		585	join "\x00",
		586	$processversion,
		587	map {
		588	aio_stat $_
		589	and Carp::croak "$_: $!";
		590
		591	($_, (stat _)[7,9])
		592	} @$src;
		593
		594	my $dbmeta = db_get cache => "$id/meta";
		595	if ($dbmeta ne $meta) {
		596	# changed, we may need to process
		597
		598	my @data;
		599	my $md5;
		600
		601	for (0 .. $#$src) {
		602	0 <= aio_load $src->[$_], $data[$_]
		603	or Carp::croak "$src->[$_]: $!";
		604	}
		605
		606	# if processing is expensive, check
		607	# checksum first
		608	if (1) {
		609	$md5 =
		610	join "\x00",
		611	$processversion,
		612	map {
		613	cf::cede_to_tick;
		614	($src->[$_], Digest::MD5::md5_hex $data[$_])
		615	} 0.. $#$src;
		616
		617
		618	my $dbmd5 = db_get cache => "$id/md5";
		619	if ($dbmd5 eq $md5) {
		620	db_put cache => "$id/meta", $meta;
		621
		622	return db_get cache => "$id/data";
		623	}
		624	}
		625
		626	my $t1 = Time::HiRes::time;
		627	my $data = $process->(\@data);
		628	my $t2 = Time::HiRes::time;
		629
		630	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		631
		632	db_put cache => "$id/data", $data;
		633	db_put cache => "$id/md5" , $md5;
		634	db_put cache => "$id/meta", $meta;
		635
		636	return $data;
		637	}
		638
		639	db_get cache => "$id/data"
		640	}
		641
		642	=item cf::datalog type => key => value, ...
		643
		644	Log a datalog packet of the given type with the given key-value pairs.
		645
		646	=cut
		647
		648	sub datalog($@) {
		649	my ($type, %kv) = @_;
		650	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	651	}
342		652
343	=back	653	=back
344		654
345	=cut	655	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		656
467	#############################################################################	657	#############################################################################
468		658
469	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
470		660
…		…
472	attach callbacks/event handlers (a collection of which is called an "attachment")	662	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
474		664
475	In the following description, CLASS can be any of C<global>, C<object>	665	In the following description, CLASS can be any of C<global>, C<object>
476	C<player>, C<client> or C<map> (i.e. the attachable objects in	666	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	667	Crossfire TRT).
478		668
479	=over 4	669	=over 4
480		670
481	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
482		672
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	787	our @CB_MAP = ();
598		788
599	my %attachment;	789	my %attachment;
600		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
601	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
603		799
604	use sort 'stable';	800	use sort 'stable';
605		801
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
640		836
641	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		841
646	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	843	my $pkg = shift @arg;
648		844
649	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
679	}	875	}
680		876
681	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
682	} else {	878	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	880	}
685		881
686	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
687	}	883	}
688		884
…		…
690	if (ref $_[0]) {	886	if (ref $_[0]) {
691	_object_attach @_;	887	_object_attach @_;
692	} else {	888	} else {
693	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
694	}	890	}
		891	_recalc_want;
695	};	892	};
696		893
697	# all those should be optimised	894	# all those should be optimised
698	sub cf::attachable::detach {	895	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
703	reattach ($obj);	900	reattach ($obj);
704	} else {	901	} else {
705	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
706	}	903	}
		904	_recalc_want;
707	};	905	};
708		906
709	sub cf::attachable::attached {	907	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
711		909
…		…
726	";	924	";
727	die if $@;	925	die if $@;
728	}	926	}
729		927
730	our $override;	928	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	929	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		930
733	sub override {	931	sub override {
734	$override = 1;	932	$override = 1;
735	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
736	}	934	}
737		935
738	sub do_invoke {	936	sub do_invoke {
739	my $event = shift;	937	my $event = shift;
740	my $callbacks = shift;	938	my $callbacks = shift;
741		939
742	@invoke_results = ();	940	@INVOKE_RESULTS = ();
743		941
744	local $override;	942	local $override;
745		943
746	for (@$callbacks) {	944	for (@$callbacks) {
747	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
764		962
765	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
766		964
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	965	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
768	removed in future versions), and there is no public API to access override	966	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		968
771	=back	969	=back
772		970
773	=cut	971	=cut
774		972
775	#############################################################################	973	#############################################################################
776	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
777		1017
778	sub reattach {	1018	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		1023
782	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
783		1025
784	@$registry = ();	1026	@$registry = ();
785		1027
…		…
826	sub object_freezer_save {	1068	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
828		1070
829	sync_job {	1071	sync_job {
830	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
833		1076
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	1081	close $fh;
839		1082
840	if (@$objs) {	1083	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1084	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	1089	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
848	}	1091	}
849	} else {	1092	} else {
850	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
856	}	1099	}
857	} else {	1100	} else {
858	aio_unlink $filename;	1101	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
860	}	1103	}
861	}	1104	};
862	}	1105	}
863		1106
864	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
866		1109
…		…
878	or return;	1121	or return;
879		1122
880	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
882	or return;	1125	or return;
		1126
883	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
884	}	1129	}
885		1130
		1131	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1132	warn sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1133	$decname, length $data, scalar @{$av || []};
		1134
888	return ($data, $av);	1135	($data, $av)
889	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
890		1143
891	#############################################################################	1144	#############################################################################
892	# command handling &c	1145	# command handling &c
893		1146
894	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1161	}
909		1162
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1164
912	Register a callbackf ro execution when the client sends an extcmd packet.	1165	Register a callback for execution when the client sends an (synchronous)
		1166	extcmd packet. Ext commands will be processed in the order they are
		1167	received by the server, like other user commands. The first argument is
		1168	the logged-in player. Ext commands can only be processed after a player
		1169	has logged in successfully.
913		1170
914	If the callback returns something, it is sent back as if reply was being	1171	If the callback returns something, it is sent back as if reply was being
915	called.	1172	called.
916		1173
		1174	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1175
		1176	Register a callback for execution when the client sends an (asynchronous)
		1177	exticmd packet. Exti commands are processed by the server as soon as they
		1178	are received, i.e. out of order w.r.t. other commands. The first argument
		1179	is a client socket. Exti commands can be received anytime, even before
		1180	log-in.
		1181
		1182	If the callback returns something, it is sent back as if reply was being
		1183	called.
		1184
917	=cut	1185	=cut
918		1186
919	sub register_extcmd {	1187	sub register_extcmd {
920	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
921		1189
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
926	}	1197	}
927		1198
928	cf::player->attach (	1199	cf::player->attach (
929	on_command => sub {	1200	on_command => sub {
930	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
939	cf::override;	1210	cf::override;
940	},	1211	},
941	on_extcmd => sub {	1212	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
943		1214
944	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1216
946	if (ref $msg) {	1217	if (ref $msg) {
		1218	my ($type, $reply, @payload) =
		1219	"ARRAY" eq ref $msg
		1220	? @$msg
		1221	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1222
		1223	my @reply;
		1224
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
952	} else {	1232	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1234	}
955		1235
956	cf::override;	1236	cf::override;
957	},	1237	},
958	);	1238	);
959		1239
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1240	sub load_extensions {
		1241	cf::sync_job {
		1242	my %todo;
		1243
		1244	for my $path (<$LIBDIR/*.ext>) {
		1245	next unless -r $path;
		1246
		1247	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1248	my $base = $1;
		1249	my $pkg = $1;
		1250	$pkg =~ s/[^[:word:]]/_/g;
		1251	$pkg = "ext::$pkg";
		1252
		1253	open my $fh, "<:utf8", $path
		1254	or die "$path: $!";
		1255
		1256	my $source = do { local $/; <$fh> };
		1257
		1258	my %ext = (
		1259	path => $path,
		1260	base => $base,
		1261	pkg => $pkg,
		1262	);
		1263
		1264	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1265	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1266
		1267	$ext{source} =
		1268	"package $pkg; use strict; use utf8;\n"
		1269	. "#line 1 \"$path\"\n{\n"
		1270	. $source
		1271	. "\n};\n1";
		1272
		1273	$todo{$base} = \%ext;
		1274	}
		1275
		1276	my %done;
		1277	while (%todo) {
		1278	my $progress;
		1279
		1280	while (my ($k, $v) = each %todo) {
		1281	for (split /,\s*/, $v->{meta}{depends}) {
		1282	goto skip
		1283	unless exists $done{$_};
		1284	}
		1285
		1286	warn "... loading '$k' into '$v->{pkg}'\n";
		1287
		1288	unless (eval $v->{source}) {
		1289	my $msg = $@ ? "$v->{path}: $@\n"
		1290	: "$v->{base}: extension inactive.\n";
		1291
		1292	if (exists $v->{meta}{mandatory}) {
		1293	warn $msg;
		1294	warn "mandatory extension failed to load, exiting.\n";
		1295	exit 1;
		1296	}
		1297
		1298	warn $msg;
		1299	}
		1300
		1301	$done{$k} = delete $todo{$k};
		1302	push @EXTS, $v->{pkg};
		1303	$progress = 1;
		1304	}
		1305
		1306	skip:
		1307	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1308	unless $progress;
		1309	}
		1310	};
		1311	}
		1312
		1313	#############################################################################
		1314
		1315	=back
		1316
		1317	=head2 CORE EXTENSIONS
		1318
		1319	Functions and methods that extend core crossfire objects.
		1320
		1321	=cut
		1322
		1323	package cf::player;
		1324
		1325	use Coro::AIO;
		1326
		1327	=head3 cf::player
		1328
		1329	=over 4
		1330
		1331	=item cf::player::num_playing
		1332
		1333	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1334
		1335	=cut
		1336
		1337	sub num_playing {
		1338	scalar grep
		1339	$_->ob->map
		1340	&& !$_->hidden
		1341	&& !$_->ob->flag (cf::FLAG_WIZ),
		1342	cf::player::list
		1343	}
		1344
		1345	=item cf::player::find $login
		1346
		1347	Returns the given player object, loading it if necessary (might block).
		1348
		1349	=cut
		1350
		1351	sub playerdir($) {
		1352	"$PLAYERDIR/"
		1353	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1354	}
		1355
		1356	sub path($) {
		1357	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1358
		1359	(playerdir $login) . "/playerdata"
		1360	}
		1361
		1362	sub find_active($) {
		1363	$cf::PLAYER{$_[0]}
		1364	and $cf::PLAYER{$_[0]}->active
		1365	and $cf::PLAYER{$_[0]}
		1366	}
		1367
		1368	sub exists($) {
		1369	my ($login) = @_;
		1370
		1371	$cf::PLAYER{$login}
		1372	or cf::sync_job { !aio_stat path $login }
		1373	}
		1374
		1375	sub find($) {
		1376	return $cf::PLAYER{$_[0]} || do {
		1377	my $login = $_[0];
		1378
		1379	my $guard = cf::lock_acquire "user_find:$login";
		1380
		1381	$cf::PLAYER{$_[0]} || do {
		1382	# rename old playerfiles to new ones
		1383	#TODO: remove when no longer required
		1384	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1385	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1386	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1387	aio_unlink +(playerdir $login) . "/$login.pl";
		1388
		1389	my $f = new_from_file cf::object::thawer path $login
		1390	or return;
		1391
		1392	my $pl = cf::player::load_pl $f
		1393	or return;
		1394	local $cf::PLAYER_LOADING{$login} = $pl;
		1395	$f->resolve_delayed_derefs;
		1396	$cf::PLAYER{$login} = $pl
		1397	}
		1398	}
		1399	}
		1400
		1401	sub save($) {
		1402	my ($pl) = @_;
		1403
		1404	return if $pl->{deny_save};
		1405
		1406	my $path = path $pl;
		1407	my $guard = cf::lock_acquire "user_save:$path";
		1408
		1409	return if $pl->{deny_save};
		1410
		1411	aio_mkdir playerdir $pl, 0770;
		1412	$pl->{last_save} = $cf::RUNTIME;
		1413
		1414	$pl->save_pl ($path);
		1415	cf::cede_to_tick;
		1416	}
		1417
		1418	sub new($) {
		1419	my ($login) = @_;
		1420
		1421	my $self = create;
		1422
		1423	$self->ob->name ($login);
		1424	$self->{deny_save} = 1;
		1425
		1426	$cf::PLAYER{$login} = $self;
		1427
		1428	$self
		1429	}
		1430
		1431	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1432
		1433	=cut
		1434
		1435	sub send_msg {
		1436	my $ns = shift->ns
		1437	or return;
		1438	$ns->send_msg (@_);
		1439	}
		1440
		1441	=item $pl->quit_character
		1442
		1443	Nukes the player without looking back. If logged in, the connection will
		1444	be destroyed. May block for a long time.
		1445
		1446	=cut
		1447
		1448	sub quit_character {
		1449	my ($pl) = @_;
		1450
		1451	my $name = $pl->ob->name;
		1452
		1453	$pl->{deny_save} = 1;
		1454	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1455
		1456	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1457	$pl->deactivate;
		1458	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1459	$pl->ns->destroy if $pl->ns;
		1460
		1461	my $path = playerdir $pl;
		1462	my $temp = "$path~$cf::RUNTIME~deleting~";
		1463	aio_rename $path, $temp;
		1464	delete $cf::PLAYER{$pl->ob->name};
		1465	$pl->destroy;
		1466
		1467	my $prefix = qr<^~\Q$name\E/>;
		1468
		1469	# nuke player maps
		1470	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1471
		1472	IO::AIO::aio_rmtree $temp;
		1473	}
		1474
		1475	=item $pl->kick
		1476
		1477	Kicks a player out of the game. This destroys the connection.
		1478
		1479	=cut
		1480
		1481	sub kick {
		1482	my ($pl, $kicker) = @_;
		1483
		1484	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1485	$pl->killer ("kicked");
		1486	$pl->ns->destroy;
		1487	}
		1488
		1489	=item cf::player::list_logins
		1490
		1491	Returns am arrayref of all valid playernames in the system, can take a
		1492	while and may block, so not sync_job-capable, ever.
		1493
		1494	=cut
		1495
		1496	sub list_logins {
		1497	my $dirs = aio_readdir $PLAYERDIR
		1498	or return [];
		1499
		1500	my @logins;
		1501
		1502	for my $login (@$dirs) {
		1503	my $path = path $login;
		1504
		1505	# a .pst is a dead give-away for a valid player
		1506	unless (-e "$path.pst") {
		1507	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1508	aio_read $fh, 0, 512, my $buf, 0 or next;
		1509	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1510	}
		1511
		1512	utf8::decode $login;
		1513	push @logins, $login;
		1514	}
		1515
		1516	\@logins
		1517	}
		1518
		1519	=item $player->maps
		1520
		1521	Returns an arrayref of map paths that are private for this
		1522	player. May block.
		1523
		1524	=cut
		1525
		1526	sub maps($) {
		1527	my ($pl) = @_;
		1528
		1529	$pl = ref $pl ? $pl->ob->name : $pl;
		1530
		1531	my $files = aio_readdir playerdir $pl
		1532	or return;
		1533
		1534	my @paths;
		1535
		1536	for (@$files) {
		1537	utf8::decode $_;
		1538	next if /\.(?:pl|pst)$/;
		1539	next unless /^$PATH_SEP/o;
		1540
		1541	push @paths, cf::map::normalise "~$pl/$_";
		1542	}
		1543
		1544	\@paths
		1545	}
		1546
		1547	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1548
		1549	Expand crossfire pod fragments into protocol xml.
		1550
		1551	=cut
		1552
		1553	sub expand_cfpod {
		1554	((my $self), (local $_)) = @_;
		1555
		1556	# escape & and <
		1557	s/&/&amp;/g;
		1558	s/(?<![BIUGHT])</&lt;/g;
		1559
		1560	# this is buggy, it needs to properly take care of nested <'s
		1561
		1562	1 while
		1563	# replace B<>, I<>, U<> etc.
		1564	s/B<([^\>]*)>/<b>$1<\/b>/
		1565	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1566	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1567	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1568	# replace G<male|female> tags
		1569	|| s{G<([^>|]*)\|([^>]*)>}{
		1570	$self->gender ? $2 : $1
		1571	}ge
		1572	# replace H<hint text>
		1573	|| s{H<([^\>]*)>}
		1574	{
		1575	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1576	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1577	"")
		1578	[$self->{hintmode}]
		1579	}ge;
		1580
		1581	# create single paragraphs (very hackish)
		1582	s/(?<=\S)\n(?=\w)/ /g;
		1583
		1584	# compress some whitespace
		1585	s/\s+\n/\n/g; # ws line-ends
		1586	s/\n\n+/\n/g; # double lines
		1587	s/^\n+//; # beginning lines
		1588	s/\n+$//; # ending lines
		1589
		1590	$_
		1591	}
		1592
		1593	sub hintmode {
		1594	$_[0]{hintmode} = $_[1] if @_ > 1;
		1595	$_[0]{hintmode}
		1596	}
		1597
		1598	=item $player->ext_reply ($msgid, @msg)
		1599
		1600	Sends an ext reply to the player.
		1601
		1602	=cut
		1603
		1604	sub ext_reply($$@) {
		1605	my ($self, $id, @msg) = @_;
		1606
		1607	$self->ns->ext_reply ($id, @msg)
		1608	}
		1609
		1610	=item $player->ext_msg ($type, @msg)
		1611
		1612	Sends an ext event to the client.
		1613
		1614	=cut
		1615
		1616	sub ext_msg($$@) {
		1617	my ($self, $type, @msg) = @_;
		1618
		1619	$self->ns->ext_msg ($type, @msg);
		1620	}
		1621
		1622	=head3 cf::region
		1623
		1624	=over 4
		1625
		1626	=cut
		1627
		1628	package cf::region;
		1629
		1630	=item cf::region::find_by_path $path
		1631
		1632	Tries to decuce the likely region for a map knowing only its path.
		1633
		1634	=cut
		1635
		1636	sub find_by_path($) {
967	my ($path) = @_;	1637	my ($path) = @_;
968		1638
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1639	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1640
975	warn "loading '$path' into '$pkg'\n";	1641	for my $region (list) {
976		1642	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1643	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1644	if $region->specificity > $specificity;
979		1645	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1646	}
1009		1647
1010	# remove commands	1648	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1649	}
1116		1650
1117	=back	1651	=back
1118
1119		1652
1120	=head3 cf::map	1653	=head3 cf::map
1121		1654
1122	=over 4	1655	=over 4
1123		1656
…		…
1126	package cf::map;	1659	package cf::map;
1127		1660
1128	use Fcntl;	1661	use Fcntl;
1129	use Coro::AIO;	1662	use Coro::AIO;
1130		1663
		1664	use overload
		1665	'""' => \&as_string,
		1666	fallback => 1;
		1667
1131	our $MAX_RESET = 7200;	1668	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1669	our $DEFAULT_RESET = 3000;
1133		1670
1134	sub generate_random_map {	1671	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1672	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1673	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1674	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1675	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1676	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1677	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1678	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1679	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1680	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1681	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1682	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1683	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1684	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1685	(cf::region::find $rmp->{region}), $rmp->{custom}
		1686	)
		1687	}
		1688
		1689	=item cf::map->register ($regex, $prio)
		1690
		1691	Register a handler for the map path matching the given regex at the
		1692	givne priority (higher is better, built-in handlers have priority 0, the
		1693	default).
		1694
		1695	=cut
		1696
		1697	sub register {
		1698	my (undef, $regex, $prio) = @_;
		1699	my $pkg = caller;
		1700
		1701	no strict;
		1702	push @{"$pkg\::ISA"}, __PACKAGE__;
		1703
		1704	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1705	}
		1706
		1707	# also paths starting with '/'
		1708	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1709
		1710	sub thawer_merge {
		1711	my ($self, $merge) = @_;
		1712
		1713	# we have to keep some variables in memory intact
		1714	local $self->{path};
		1715	local $self->{load_path};
		1716
		1717	$self->SUPER::thawer_merge ($merge);
		1718	}
		1719
		1720	sub normalise {
		1721	my ($path, $base) = @_;
		1722
		1723	$path = "$path"; # make sure its a string
		1724
		1725	$path =~ s/\.map$//;
		1726
		1727	# map plan:
		1728	#
		1729	# /! non-realised random map exit (special hack!)
		1730	# {... are special paths that are not being touched
		1731	# ?xxx/... are special absolute paths
		1732	# ?random/... random maps
		1733	# /... normal maps
		1734	# ~user/... per-player map of a specific user
		1735
		1736	$path =~ s/$PATH_SEP/\//go;
		1737
		1738	# treat it as relative path if it starts with
		1739	# something that looks reasonable
		1740	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1741	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1742
		1743	$base =~ s{[^/]+/?$}{};
		1744	$path = "$base/$path";
		1745	}
		1746
		1747	for ($path) {
		1748	redo if s{//}{/};
		1749	redo if s{/\.?/}{/};
		1750	redo if s{/[^/]+/\.\./}{/};
		1751	}
		1752
		1753	$path
		1754	}
		1755
		1756	sub new_from_path {
		1757	my (undef, $path, $base) = @_;
		1758
		1759	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1760
		1761	$path = normalise $path, $base;
		1762
		1763	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1764	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1765	my $self = bless cf::map::new, $pkg;
		1766	$self->{path} = $path; $self->path ($path);
		1767	$self->init; # pass $1 etc.
		1768	return $self;
		1769	}
		1770	}
		1771
		1772	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1773	()
		1774	}
		1775
		1776	sub init {
		1777	my ($self) = @_;
		1778
		1779	$self
		1780	}
		1781
		1782	sub as_string {
		1783	my ($self) = @_;
		1784
		1785	"$self->{path}"
		1786	}
		1787
		1788	# the displayed name, this is a one way mapping
		1789	sub visible_name {
		1790	&as_string
		1791	}
		1792
		1793	# the original (read-only) location
		1794	sub load_path {
		1795	my ($self) = @_;
		1796
		1797	"$MAPDIR/$self->{path}.map"
		1798	}
		1799
		1800	# the temporary/swap location
		1801	sub save_path {
		1802	my ($self) = @_;
		1803
		1804	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1805	"$TMPDIR/$path.map"
		1806	}
		1807
		1808	# the unique path, undef == no special unique path
		1809	sub uniq_path {
		1810	my ($self) = @_;
		1811
		1812	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1813	"$UNIQUEDIR/$path"
1151	}	1814	}
1152		1815
1153	# and all this just because we cannot iterate over	1816	# and all this just because we cannot iterate over
1154	# all maps in C++...	1817	# all maps in C++...
1155	sub change_all_map_light {	1818	sub change_all_map_light {
…		…
1157		1820
1158	$_->change_map_light ($change)	1821	$_->change_map_light ($change)
1159	for grep $_->outdoor, values %cf::MAP;	1822	for grep $_->outdoor, values %cf::MAP;
1160	}	1823	}
1161		1824
		1825	sub decay_objects {
		1826	my ($self) = @_;
		1827
		1828	return if $self->{deny_reset};
		1829
		1830	$self->do_decay_objects;
		1831	}
		1832
		1833	sub unlink_save {
		1834	my ($self) = @_;
		1835
		1836	utf8::encode (my $save = $self->save_path);
		1837	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1838	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1839	}
		1840
1162	sub try_load_header($) {	1841	sub load_header_from($) {
1163	my ($path) = @_;	1842	my ($self, $path) = @_;
1164		1843
1165	utf8::encode $path;	1844	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1845	my $f = new_from_file cf::object::thawer $path
1167	or return;	1846	or return;
1168		1847
1169	my $map = cf::map::new	1848	$self->_load_header ($f)
1170	or return;	1849	or return;
1171		1850
1172	$map->load_header ($path)	1851	local $MAP_LOADING{$self->{path}} = $self;
		1852	$f->resolve_delayed_derefs;
		1853
		1854	$self->{load_path} = $path;
		1855
		1856	1
		1857	}
		1858
		1859	sub load_header_orig {
		1860	my ($self) = @_;
		1861
		1862	$self->load_header_from ($self->load_path)
		1863	}
		1864
		1865	sub load_header_temp {
		1866	my ($self) = @_;
		1867
		1868	$self->load_header_from ($self->save_path)
		1869	}
		1870
		1871	sub prepare_temp {
		1872	my ($self) = @_;
		1873
		1874	$self->last_access ((delete $self->{last_access})
		1875	|| $cf::RUNTIME); #d#
		1876	# safety
		1877	$self->{instantiate_time} = $cf::RUNTIME
		1878	if $self->{instantiate_time} > $cf::RUNTIME;
		1879	}
		1880
		1881	sub prepare_orig {
		1882	my ($self) = @_;
		1883
		1884	$self->{load_original} = 1;
		1885	$self->{instantiate_time} = $cf::RUNTIME;
		1886	$self->last_access ($cf::RUNTIME);
		1887	$self->instantiate;
		1888	}
		1889
		1890	sub load_header {
		1891	my ($self) = @_;
		1892
		1893	if ($self->load_header_temp) {
		1894	$self->prepare_temp;
		1895	} else {
		1896	$self->load_header_orig
1173	or return;	1897	or return;
		1898	$self->prepare_orig;
		1899	}
1174		1900
1175	$map->{load_path} = $path;	1901	$self->{deny_reset} = 1
		1902	if $self->no_reset;
1176		1903
1177	$map	1904	$self->default_region (cf::region::find_by_path $self->{path})
1178	}	1905	unless $self->default_region;
1179		1906
		1907	1
		1908	}
		1909
		1910	sub find;
1180	sub find_map {	1911	sub find {
1181	my ($path, $origin) = @_;	1912	my ($path, $origin) = @_;
1182		1913
1183	#warn "find_map<$path,$origin>\n";#d#
1184
1185	$path = new cf::path $path, $origin && $origin->path;	1914	$path = normalise $path, $origin && $origin->path;
1186	my $key = $path->as_string;
1187		1915
		1916	cf::lock_wait "map_data:$path";#d#remove
1188	cf::lock_wait "map_find:$key";	1917	cf::lock_wait "map_find:$path";
1189		1918
1190	$cf::MAP{$key} || do {	1919	$cf::MAP{$path} || do {
1191	my $guard = cf::lock_acquire "map_find:$key";	1920	my $guard1 = cf::lock_acquire "map_find:$path";
		1921	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1192		1922
1193	# do it the slow way	1923	my $map = new_from_path cf::map $path
1194	my $map = try_load_header $path->save_path;
1195
1196	if ($map) {
1197	# safety
1198	$map->{instantiate_time} = $cf::RUNTIME
1199	if $map->{instantiate_time} > $cf::RUNTIME;
1200	} else {
1201	if (my $rmp = $path->random_map_params) {
1202	$map = generate_random_map $key, $rmp;
1203	} else {
1204	$map = try_load_header $path->load_path;
1205	}
1206
1207	$map or return;	1924	or return;
1208		1925
1209	$map->{load_original} = 1;
1210	$map->{instantiate_time} = $cf::RUNTIME;
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1926	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		1927
1222	if ($map->should_reset) {	1928	$map->load_header
		1929	or return;
		1930
		1931	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1932	# doing this can freeze the server in a sync job, obviously
		1933	#$cf::WAIT_FOR_TICK->wait;
		1934	undef $guard1;
		1935	undef $guard2;
1223	$map->reset;	1936	$map->reset;
1224	undef $guard;	1937	return find $path;
1225	$map = find_map $path;
1226	}	1938	}
1227		1939
1228	$cf::MAP{$key} = $map	1940	$cf::MAP{$path} = $map
1229	}	1941	}
1230	}	1942	}
		1943
		1944	sub pre_load { }
		1945	sub post_load { }
1231		1946
1232	sub load {	1947	sub load {
1233	my ($self) = @_;	1948	my ($self) = @_;
1234		1949
		1950	local $self->{deny_reset} = 1; # loading can take a long time
		1951
1235	my $path = $self->{path};	1952	my $path = $self->{path};
		1953
		1954	{
1236	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1955	my $guard = cf::lock_acquire "map_data:$path";
1237		1956
		1957	return unless $self->valid;
1238	return if $self->in_memory != cf::MAP_SWAPPED;	1958	return unless $self->in_memory == cf::MAP_SWAPPED;
1239		1959
1240	$self->in_memory (cf::MAP_LOADING);	1960	$self->in_memory (cf::MAP_LOADING);
1241		1961
1242	$self->alloc;	1962	$self->alloc;
1243	$self->load_objects ($self->{load_path}, 1)	1963
		1964	$self->pre_load;
		1965	cf::cede_to_tick;
		1966
		1967	my $f = new_from_file cf::object::thawer $self->{load_path};
		1968	$f->skip_block;
		1969	$self->_load_objects ($f)
1244	or return;	1970	or return;
1245		1971
1246	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1972	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1247	if delete $self->{load_original};	1973	if delete $self->{load_original};
1248		1974
1249	if (my $uniq = $path->uniq_path) {	1975	if (my $uniq = $self->uniq_path) {
1250	utf8::encode $uniq;	1976	utf8::encode $uniq;
1251	if (aio_open $uniq, O_RDONLY, 0) {	1977	unless (aio_stat $uniq) {
		1978	if (my $f = new_from_file cf::object::thawer $uniq) {
1252	$self->clear_unique_items;	1979	$self->clear_unique_items;
1253	$self->load_objects ($uniq, 0);	1980	$self->_load_objects ($f);
		1981	$f->resolve_delayed_derefs;
		1982	}
1254	}	1983	}
1255	}	1984	}
1256		1985
		1986	$f->resolve_delayed_derefs;
		1987
		1988	cf::cede_to_tick;
1257	# now do the right thing for maps	1989	# now do the right thing for maps
1258	$self->link_multipart_objects;	1990	$self->link_multipart_objects;
1259
1260	if ($self->{path}->is_style_map) {
1261	$self->{deny_save} = 1;
1262	$self->{deny_reset} = 1;
1263	} else {
1264	$self->fix_auto_apply;
1265	$self->decay_objects;
1266	$self->update_buttons;
1267	$self->set_darkness_map;
1268	$self->difficulty ($self->estimate_difficulty)	1991	$self->difficulty ($self->estimate_difficulty)
1269	unless $self->difficulty;	1992	unless $self->difficulty;
		1993	cf::cede_to_tick;
		1994
		1995	unless ($self->{deny_activate}) {
		1996	$self->decay_objects;
		1997	$self->fix_auto_apply;
		1998	$self->update_buttons;
		1999	cf::cede_to_tick;
		2000	$self->set_darkness_map;
		2001	cf::cede_to_tick;
1270	$self->activate;	2002	$self->activate;
1271	}	2003	}
1272		2004
		2005	$self->{last_save} = $cf::RUNTIME;
		2006	$self->last_access ($cf::RUNTIME);
		2007
1273	$self->in_memory (cf::MAP_IN_MEMORY);	2008	$self->in_memory (cf::MAP_IN_MEMORY);
1274	}	2009	}
1275		2010
1276	sub load_map_sync {	2011	$self->post_load;
		2012	}
		2013
		2014	sub customise_for {
		2015	my ($self, $ob) = @_;
		2016
		2017	return find "~" . $ob->name . "/" . $self->{path}
		2018	if $self->per_player;
		2019
		2020	# return find "?party/" . $ob->name . "/" . $self->{path}
		2021	# if $self->per_party;
		2022
		2023	$self
		2024	}
		2025
		2026	# find and load all maps in the 3x3 area around a map
		2027	sub load_neighbours {
		2028	my ($map) = @_;
		2029
		2030	my @neigh; # diagonal neighbours
		2031
		2032	for (0 .. 3) {
		2033	my $neigh = $map->tile_path ($_)
		2034	or next;
		2035	$neigh = find $neigh, $map
		2036	or next;
		2037	$neigh->load;
		2038
		2039	push @neigh,
		2040	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2041	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2042	}
		2043
		2044	for (grep defined $_->[0], @neigh) {
		2045	my ($path, $origin) = @$_;
		2046	my $neigh = find $path, $origin
		2047	or next;
		2048	$neigh->load;
		2049	}
		2050	}
		2051
		2052	sub find_sync {
1277	my ($path, $origin) = @_;	2053	my ($path, $origin) = @_;
1278		2054
1279	#warn "load_map_sync<$path, $origin>\n";#d#	2055	cf::sync_job { find $path, $origin }
		2056	}
1280		2057
1281	cf::sync_job {	2058	sub do_load_sync {
1282	my $map = cf::map::find_map $path, $origin	2059	my ($map) = @_;
1283	or return;	2060
1284	$map->load;	2061	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1285	$map	2062	if $Coro::current == $Coro::main;
		2063
		2064	cf::sync_job { $map->load };
		2065	}
		2066
		2067	our %MAP_PREFETCH;
		2068	our $MAP_PREFETCHER = undef;
		2069
		2070	sub find_async {
		2071	my ($path, $origin, $load) = @_;
		2072
		2073	$path = normalise $path, $origin && $origin->{path};
		2074
		2075	if (my $map = $cf::MAP{$path}) {
		2076	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2077	}
		2078
		2079	$MAP_PREFETCH{$path} |= $load;
		2080
		2081	$MAP_PREFETCHER ||= cf::async {
		2082	$Coro::current->{desc} = "map prefetcher";
		2083
		2084	while (%MAP_PREFETCH) {
		2085	while (my ($k, $v) = each %MAP_PREFETCH) {
		2086	if (my $map = find $k) {
		2087	$map->load if $v;
		2088	}
		2089
		2090	delete $MAP_PREFETCH{$k};
		2091	}
		2092	}
		2093	undef $MAP_PREFETCHER;
1286	}	2094	};
		2095	$MAP_PREFETCHER->prio (6);
		2096
		2097	()
1287	}	2098	}
1288		2099
1289	sub save {	2100	sub save {
1290	my ($self) = @_;	2101	my ($self) = @_;
1291		2102
		2103	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2104
1292	$self->{last_save} = $cf::RUNTIME;	2105	$self->{last_save} = $cf::RUNTIME;
1293		2106
1294	return unless $self->dirty;	2107	return unless $self->dirty;
1295		2108
1296	my $save = $self->{path}->save_path; utf8::encode $save;	2109	my $save = $self->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2110	my $uniq = $self->uniq_path; utf8::encode $uniq;
1298		2111
1299	$self->{load_path} = $save;	2112	$self->{load_path} = $save;
1300		2113
1301	return if $self->{deny_save};	2114	return if $self->{deny_save};
1302		2115
		2116	local $self->{last_access} = $self->last_access;#d#
		2117
		2118	cf::async {
		2119	$Coro::current->{desc} = "map player save";
		2120	$_->contr->save for $self->players;
		2121	};
		2122
1303	if ($uniq) {	2123	if ($uniq) {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2124	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1305	$self->save_objects ($uniq, cf::IO_UNIQUES);	2125	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1306	} else {	2126	} else {
1307	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2127	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1308	}	2128	}
1309	}	2129	}
1310		2130
1311	sub swap_out {	2131	sub swap_out {
1312	my ($self) = @_;	2132	my ($self) = @_;
		2133
		2134	# save first because save cedes
		2135	$self->save;
		2136
		2137	my $lock = cf::lock_acquire "map_data:$self->{path}";
1313		2138
1314	return if $self->players;	2139	return if $self->players;
1315	return if $self->in_memory != cf::MAP_IN_MEMORY;	2140	return if $self->in_memory != cf::MAP_IN_MEMORY;
1316	return if $self->{deny_save};	2141	return if $self->{deny_save};
1317		2142
		2143	$self->in_memory (cf::MAP_SWAPPED);
		2144
1318	$self->save;	2145	$self->deactivate;
		2146	$_->clear_links_to ($self) for values %cf::MAP;
1319	$self->clear;	2147	$self->clear;
1320	$self->in_memory (cf::MAP_SWAPPED);
1321	}	2148	}
1322		2149
1323	sub reset_at {	2150	sub reset_at {
1324	my ($self) = @_;	2151	my ($self) = @_;
1325		2152
1326	# TODO: safety, remove and allow resettable per-player maps	2153	# TODO: safety, remove and allow resettable per-player maps
1327	return 1e99 if $self->{path}{user_rel};
1328	return 1e99 if $self->{deny_reset};	2154	return 1e99 if $self->{deny_reset};
1329		2155
1330	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2156	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1331	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2157	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1332		2158
…		…
1337	my ($self) = @_;	2163	my ($self) = @_;
1338		2164
1339	$self->reset_at <= $cf::RUNTIME	2165	$self->reset_at <= $cf::RUNTIME
1340	}	2166	}
1341		2167
1342	sub unlink_save {
1343	my ($self) = @_;
1344
1345	utf8::encode (my $save = $self->{path}->save_path);
1346	aioreq_pri 3; IO::AIO::aio_unlink $save;
1347	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1348	}
1349
1350	sub rename {
1351	my ($self, $new_path) = @_;
1352
1353	$self->unlink_save;
1354
1355	delete $cf::MAP{$self->path};
1356	$self->{path} = new cf::path $new_path;
1357	$self->path ($self->{path}->as_string);
1358	$cf::MAP{$self->path} = $self;
1359
1360	$self->save;
1361	}
1362
1363	sub reset {	2168	sub reset {
1364	my ($self) = @_;	2169	my ($self) = @_;
1365		2170
		2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2172
1366	return if $self->players;	2173	return if $self->players;
1367	return if $self->{path}{user_rel};#d#
1368		2174
1369	warn "resetting map ", $self->path;#d#	2175	warn "resetting map ", $self->path;
		2176
		2177	$self->in_memory (cf::MAP_SWAPPED);
		2178
		2179	# need to save uniques path
		2180	unless ($self->{deny_save}) {
		2181	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2182
		2183	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2184	if $uniq;
		2185	}
1370		2186
1371	delete $cf::MAP{$self->path};	2187	delete $cf::MAP{$self->path};
1372		2188
		2189	$self->deactivate;
1373	$_->clear_links_to ($self) for values %cf::MAP;	2190	$_->clear_links_to ($self) for values %cf::MAP;
		2191	$self->clear;
1374		2192
1375	$self->unlink_save;	2193	$self->unlink_save;
1376	$self->destroy;	2194	$self->destroy;
1377	}	2195	}
1378		2196
1379	my $nuke_counter = "aaaa";	2197	my $nuke_counter = "aaaa";
1380		2198
1381	sub nuke {	2199	sub nuke {
1382	my ($self) = @_;	2200	my ($self) = @_;
1383		2201
		2202	{
		2203	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2204
		2205	delete $cf::MAP{$self->path};
		2206
		2207	$self->unlink_save;
		2208
		2209	bless $self, "cf::map";
		2210	delete $self->{deny_reset};
1384	$self->{deny_save} = 1;	2211	$self->{deny_save} = 1;
1385	$self->reset_timeout (1);	2212	$self->reset_timeout (1);
1386	$self->rename ("{nuke}/" . ($nuke_counter++));	2213	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2214
		2215	$cf::MAP{$self->path} = $self;
		2216	}
		2217
1387	$self->reset; # polite request, might not happen	2218	$self->reset; # polite request, might not happen
1388	}	2219	}
1389		2220
1390	sub customise_for {	2221	=item $maps = cf::map::tmp_maps
1391	my ($map, $ob) = @_;
1392		2222
1393	if ($map->per_player) {	2223	Returns an arrayref with all map paths of currently instantiated and saved
1394	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2224	maps. May block.
		2225
		2226	=cut
		2227
		2228	sub tmp_maps() {
1395	}	2229	[
1396		2230	map {
1397	$map	2231	utf8::decode $_;
		2232	/\.map$/
		2233	? normalise $_
		2234	: ()
		2235	} @{ aio_readdir $TMPDIR or [] }
		2236	]
1398	}	2237	}
1399		2238
1400	sub emergency_save {	2239	=item $maps = cf::map::random_maps
1401	local $cf::FREEZE = 1;
1402		2240
1403	warn "enter emergency map save\n";	2241	Returns an arrayref with all map paths of currently instantiated and saved
		2242	random maps. May block.
1404		2243
1405	cf::sync_job {	2244	=cut
1406	warn "begin emergency map save\n";
1407	$_->save for values %cf::MAP;
1408	};
1409		2245
1410	warn "end emergency map save\n";	2246	sub random_maps() {
		2247	[
		2248	map {
		2249	utf8::decode $_;
		2250	/\.map$/
		2251	? normalise "?random/$_"
		2252	: ()
		2253	} @{ aio_readdir $RANDOMDIR or [] }
		2254	]
		2255	}
		2256
		2257	=item cf::map::unique_maps
		2258
		2259	Returns an arrayref of paths of all shared maps that have
		2260	instantiated unique items. May block.
		2261
		2262	=cut
		2263
		2264	sub unique_maps() {
		2265	[
		2266	map {
		2267	utf8::decode $_;
		2268	/\.map$/
		2269	? normalise $_
		2270	: ()
		2271	} @{ aio_readdir $UNIQUEDIR or [] }
		2272	]
1411	}	2273	}
1412		2274
1413	package cf;	2275	package cf;
1414		2276
1415	=back	2277	=back
1416		2278
		2279	=head3 cf::object
		2280
		2281	=cut
		2282
		2283	package cf::object;
		2284
		2285	=over 4
		2286
		2287	=item $ob->inv_recursive
		2288
		2289	Returns the inventory of the object _and_ their inventories, recursively.
		2290
		2291	=cut
		2292
		2293	sub inv_recursive_;
		2294	sub inv_recursive_ {
		2295	map { $_, inv_recursive_ $_->inv } @_
		2296	}
		2297
		2298	sub inv_recursive {
		2299	inv_recursive_ inv $_[0]
		2300	}
		2301
		2302	=item $ref = $ob->ref
		2303
		2304	creates and returns a persistent reference to an objetc that can be stored as a string.
		2305
		2306	=item $ob = cf::object::deref ($refstring)
		2307
		2308	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2309	even if the object actually exists. May block.
		2310
		2311	=cut
		2312
		2313	sub deref {
		2314	my ($ref) = @_;
		2315
		2316	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2317	my ($uuid, $name) = ($1, $2);
		2318	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2319	or return;
		2320	$pl->ob->uuid eq $uuid
		2321	or return;
		2322
		2323	$pl->ob
		2324	} else {
		2325	warn "$ref: cannot resolve object reference\n";
		2326	undef
		2327	}
		2328	}
		2329
		2330	package cf;
		2331
		2332	=back
1417		2333
1418	=head3 cf::object::player	2334	=head3 cf::object::player
1419		2335
1420	=over 4	2336	=over 4
1421		2337
…		…
1435		2351
1436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2352	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1437		2353
1438	if ($self->{record_replies}) {	2354	if ($self->{record_replies}) {
1439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2355	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2356
1440	} else {	2357	} else {
		2358	my $pl = $self->contr;
		2359
		2360	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2361	my $dialog = $pl->{npc_dialog};
		2362	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2363
		2364	} else {
1441	$msg = $npc->name . " says: $msg" if $npc;	2365	$msg = $npc->name . " says: $msg" if $npc;
1442	$self->message ($msg, $flags);	2366	$self->message ($msg, $flags);
		2367	}
1443	}	2368	}
		2369	}
		2370
		2371	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2372
		2373	=cut
		2374
		2375	sub cf::object::send_msg {
		2376	my $pl = shift->contr
		2377	or return;
		2378	$pl->send_msg (@_);
1444	}	2379	}
1445		2380
1446	=item $player_object->may ("access")	2381	=item $player_object->may ("access")
1447		2382
1448	Returns wether the given player is authorized to access resource "access"	2383	Returns wether the given player is authorized to access resource "access"
…		…
1461		2396
1462	=item $player_object->enter_link	2397	=item $player_object->enter_link
1463		2398
1464	Freezes the player and moves him/her to a special map (C<{link}>).	2399	Freezes the player and moves him/her to a special map (C<{link}>).
1465		2400
1466	The player should be reaosnably safe there for short amounts of time. You	2401	The player should be reasonably safe there for short amounts of time. You
1467	I<MUST> call C<leave_link> as soon as possible, though.	2402	I<MUST> call C<leave_link> as soon as possible, though.
1468		2403
		2404	Will never block.
		2405
1469	=item $player_object->leave_link ($map, $x, $y)	2406	=item $player_object->leave_link ($map, $x, $y)
1470		2407
1471	Moves the player out of the specila link map onto the given map. If the	2408	Moves the player out of the special C<{link}> map onto the specified
1472	map is not valid (or omitted), the player will be moved back to the	2409	map. If the map is not valid (or omitted), the player will be moved back
1473	location he/she was before the call to C<enter_link>, or, if that fails,	2410	to the location he/she was before the call to C<enter_link>, or, if that
1474	to the emergency map position.	2411	fails, to the emergency map position.
1475		2412
1476	Might block.	2413	Might block.
1477		2414
1478	=cut	2415	=cut
		2416
		2417	sub link_map {
		2418	unless ($LINK_MAP) {
		2419	$LINK_MAP = cf::map::find "{link}"
		2420	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2421	$LINK_MAP->load;
		2422	}
		2423
		2424	$LINK_MAP
		2425	}
1479		2426
1480	sub cf::object::player::enter_link {	2427	sub cf::object::player::enter_link {
1481	my ($self) = @_;	2428	my ($self) = @_;
1482		2429
1483	$self->deactivate_recursive;	2430	$self->deactivate_recursive;
1484		2431
1485	return if $self->map == $LINK_MAP;	2432	return if UNIVERSAL::isa $self->map, "ext::map_link";
1486		2433
1487	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2434	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1488	if $self->map;	2435	if $self->map && $self->map->{path} ne "{link}";
1489		2436
1490	$self->enter_map ($LINK_MAP, 20, 20);	2437	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1491	}	2438	}
1492		2439
1493	sub cf::object::player::leave_link {	2440	sub cf::object::player::leave_link {
1494	my ($self, $map, $x, $y) = @_;	2441	my ($self, $map, $x, $y) = @_;
		2442
		2443	return unless $self->contr->active;
1495		2444
1496	my $link_pos = delete $self->{_link_pos};	2445	my $link_pos = delete $self->{_link_pos};
1497		2446
1498	unless ($map) {	2447	unless ($map) {
1499	# restore original map position	2448	# restore original map position
1500	($map, $x, $y) = @{ $link_pos || [] };	2449	($map, $x, $y) = @{ $link_pos || [] };
1501	$map = cf::map::find_map $map;	2450	$map = cf::map::find $map;
1502		2451
1503	unless ($map) {	2452	unless ($map) {
1504	($map, $x, $y) = @$EMERGENCY_POSITION;	2453	($map, $x, $y) = @$EMERGENCY_POSITION;
1505	$map = cf::map::find_map $map	2454	$map = cf::map::find $map
1506	or die "FATAL: cannot load emergency map\n";	2455	or die "FATAL: cannot load emergency map\n";
1507	}	2456	}
1508	}	2457	}
1509		2458
1510	($x, $y) = (-1, -1)	2459	($x, $y) = (-1, -1)
…		…
1513	# use -1 or undef as default coordinates, not 0, 0	2462	# use -1 or undef as default coordinates, not 0, 0
1514	($x, $y) = ($map->enter_x, $map->enter_y)	2463	($x, $y) = ($map->enter_x, $map->enter_y)
1515	if $x <=0 && $y <= 0;	2464	if $x <=0 && $y <= 0;
1516		2465
1517	$map->load;	2466	$map->load;
		2467	$map->load_neighbours;
1518		2468
		2469	return unless $self->contr->active;
1519	$self->activate_recursive;	2470	$self->activate_recursive;
		2471
		2472	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1520	$self->enter_map ($map, $x, $y);	2473	$self->enter_map ($map, $x, $y);
1521	}	2474	}
1522		2475
1523	cf::player->attach (	2476	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1524	on_logout => sub {
1525	my ($pl) = @_;
1526		2477
1527	# abort map switching before logout	2478	Moves the player to the given map-path and coordinates by first freezing
1528	if ($pl->ob->{_link_pos}) {	2479	her, loading and preparing them map, calling the provided $check callback
1529	cf::sync_job {	2480	that has to return the map if sucecssful, and then unfreezes the player on
1530	$pl->ob->leave_link	2481	the new (success) or old (failed) map position. In either case, $done will
1531	};	2482	be called at the end of this process.
1532	}
1533	},
1534	on_login => sub {
1535	my ($pl) = @_;
1536		2483
1537	# try to abort aborted map switching on player login :)
1538	# should happen only on crashes
1539	if ($pl->ob->{_link_pos}) {
1540	$pl->ob->enter_link;
1541	Coro::async {
1542	# we need this sleep as the login has a concurrent enter_exit running
1543	# and this sleep increases chances of the player not ending up in scorn
1544	Coro::Timer::sleep 1;
1545	$pl->ob->leave_link;
1546	};
1547	}
1548	},
1549	);
1550
1551	=item $player_object->goto_map ($path, $x, $y)
1552
1553	=cut	2484	=cut
1554		2485
		2486	our $GOTOGEN;
		2487
1555	sub cf::object::player::goto_map {	2488	sub cf::object::player::goto {
1556	my ($self, $path, $x, $y) = @_;	2489	my ($self, $path, $x, $y, $check, $done) = @_;
		2490
		2491	# do generation counting so two concurrent goto's will be executed in-order
		2492	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1557		2493
1558	$self->enter_link;	2494	$self->enter_link;
1559		2495
1560	(Coro::async {	2496	(async {
1561	$path = new cf::path $path;	2497	$Coro::current->{desc} = "player::goto $path $x $y";
1562		2498
1563	my $map = cf::map::find_map $path->as_string;	2499	# *tag paths override both path and x|y
		2500	if ($path =~ /^\*(.*)$/) {
		2501	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2502	my $ob = $obs[rand @obs];
		2503
		2504	# see if we actually can go there
		2505	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2506	$ob = $obs[rand @obs];
		2507	} else {
		2508	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2509	}
		2510	# else put us there anyways for now #d#
		2511
		2512	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2513	} else {
		2514	($path, $x, $y) = (undef, undef, undef);
		2515	}
		2516	}
		2517
		2518	my $map = eval {
		2519	my $map = defined $path ? cf::map::find $path : undef;
		2520
		2521	if ($map) {
1564	$map = $map->customise_for ($self) if $map;	2522	$map = $map->customise_for ($self);
1565		2523	$map = $check->($map) if $check && $map;
1566	# warn "entering ", $map->path, " at ($x, $y)\n"	2524	} else {
1567	# if $map;
1568
1569	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2525	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2526	}
1570		2527
		2528	$map
		2529	};
		2530
		2531	if ($@) {
		2532	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2533	LOG llevError | logBacktrace, Carp::longmess $@;
		2534	}
		2535
		2536	if ($gen == $self->{_goto_generation}) {
		2537	delete $self->{_goto_generation};
1571	$self->leave_link ($map, $x, $y);	2538	$self->leave_link ($map, $x, $y);
		2539	}
		2540
		2541	$done->() if $done;
1572	})->prio (1);	2542	})->prio (1);
1573	}	2543	}
1574		2544
1575	=item $player_object->enter_exit ($exit_object)	2545	=item $player_object->enter_exit ($exit_object)
1576		2546
…		…
1578		2548
1579	sub parse_random_map_params {	2549	sub parse_random_map_params {
1580	my ($spec) = @_;	2550	my ($spec) = @_;
1581		2551
1582	my $rmp = { # defaults	2552	my $rmp = { # defaults
1583	xsize => 10,	2553	xsize => (cf::rndm 15, 40),
1584	ysize => 10,	2554	ysize => (cf::rndm 15, 40),
		2555	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2556	#layout => string,
1585	};	2557	};
1586		2558
1587	for (split /\n/, $spec) {	2559	for (split /\n/, $spec) {
1588	my ($k, $v) = split /\s+/, $_, 2;	2560	my ($k, $v) = split /\s+/, $_, 2;
1589		2561
…		…
1593	$rmp	2565	$rmp
1594	}	2566	}
1595		2567
1596	sub prepare_random_map {	2568	sub prepare_random_map {
1597	my ($exit) = @_;	2569	my ($exit) = @_;
		2570
		2571	my $guard = cf::lock_acquire "exit_prepare:$exit";
1598		2572
1599	# all this does is basically replace the /! path by	2573	# all this does is basically replace the /! path by
1600	# a new random map path (?random/...) with a seed	2574	# a new random map path (?random/...) with a seed
1601	# that depends on the exit object	2575	# that depends on the exit object
1602		2576
1603	my $rmp = parse_random_map_params $exit->msg;	2577	my $rmp = parse_random_map_params $exit->msg;
1604		2578
1605	if ($exit->map) {	2579	if ($exit->map) {
1606	$rmp->{region} = $exit->map->region_name;	2580	$rmp->{region} = $exit->region->name;
1607	$rmp->{origin_map} = $exit->map->path;	2581	$rmp->{origin_map} = $exit->map->path;
1608	$rmp->{origin_x} = $exit->x;	2582	$rmp->{origin_x} = $exit->x;
1609	$rmp->{origin_y} = $exit->y;	2583	$rmp->{origin_y} = $exit->y;
1610	}	2584	}
1611		2585
1612	$rmp->{random_seed} ||= $exit->random_seed;	2586	$rmp->{random_seed} ||= $exit->random_seed;
1613		2587
1614	my $data = cf::to_json $rmp;	2588	my $data = cf::to_json $rmp;
1615	my $md5 = Digest::MD5::md5_hex $data;	2589	my $md5 = Digest::MD5::md5_hex $data;
		2590	my $meta = "$RANDOMDIR/$md5.meta";
1616		2591
1617	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2592	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1618	aio_write $fh, 0, (length $data), $data, 0;	2593	aio_write $fh, 0, (length $data), $data, 0;
		2594	undef $fh;
		2595	aio_rename "$meta~", $meta;
1619		2596
1620	$exit->slaying ("?random/$md5");	2597	$exit->slaying ("?random/$md5");
1621	$exit->msg (undef);	2598	$exit->msg (undef);
1622	}	2599	}
1623	}	2600	}
…		…
1625	sub cf::object::player::enter_exit {	2602	sub cf::object::player::enter_exit {
1626	my ($self, $exit) = @_;	2603	my ($self, $exit) = @_;
1627		2604
1628	return unless $self->type == cf::PLAYER;	2605	return unless $self->type == cf::PLAYER;
1629		2606
		2607	if ($exit->slaying eq "/!") {
		2608	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2609	# the problem is that $exit might not survive long enough
		2610	# so it needs to be done right now, right here
		2611	cf::sync_job { prepare_random_map $exit };
		2612	}
		2613
		2614	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2615	my $hp = $exit->stats->hp;
		2616	my $sp = $exit->stats->sp;
		2617
1630	$self->enter_link;	2618	$self->enter_link;
1631		2619
		2620	# if exit is damned, update players death & WoR home-position
		2621	$self->contr->savebed ($slaying, $hp, $sp)
		2622	if $exit->flag (FLAG_DAMNED);
		2623
1632	(Coro::async {	2624	(async {
		2625	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2626
		2627	$self->deactivate_recursive; # just to be sure
1633	unless (eval {	2628	unless (eval {
1634		2629	$self->goto ($slaying, $hp, $sp);
1635	prepare_random_map $exit
1636	if $exit->slaying eq "/!";
1637
1638	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1639	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1640		2630
1641	1;	2631	1;
1642	}) {	2632	}) {
1643	$self->message ("Something went wrong deep within the crossfire server. "	2633	$self->message ("Something went wrong deep within the crossfire server. "
1644	. "I'll try to bring you back to the map you were before. "	2634	. "I'll try to bring you back to the map you were before. "
1645	. "Please report this to the dungeon master",	2635	. "Please report this to the dungeon master!",
1646	cf::NDI_UNIQUE | cf::NDI_RED);	2636	cf::NDI_UNIQUE | cf::NDI_RED);
1647		2637
1648	warn "ERROR in enter_exit: $@";	2638	warn "ERROR in enter_exit: $@";
1649	$self->leave_link;	2639	$self->leave_link;
1650	}	2640	}
1651	})->prio (1);	2641	})->prio (1);
…		…
1664		2654
1665	sub cf::client::send_drawinfo {	2655	sub cf::client::send_drawinfo {
1666	my ($self, $text, $flags) = @_;	2656	my ($self, $text, $flags) = @_;
1667		2657
1668	utf8::encode $text;	2658	utf8::encode $text;
1669	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2659	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1670	}	2660	}
1671		2661
		2662	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2663
		2664	Send a drawinfo or msg packet to the client, formatting the msg for the
		2665	client if neccessary. C<$type> should be a string identifying the type of
		2666	the message, with C<log> being the default. If C<$color> is negative, suppress
		2667	the message unless the client supports the msg packet.
		2668
		2669	=cut
		2670
		2671	our %CHANNEL = (
		2672	"c/identify" => {
		2673	id => "infobox",
		2674	title => "Identify",
		2675	reply => undef,
		2676	tooltip => "Items recently identified",
		2677	},
		2678	"c/examine" => {
		2679	id => "infobox",
		2680	title => "Examine",
		2681	reply => undef,
		2682	tooltip => "Signs and other items you examined",
		2683	},
		2684	"c/book" => {
		2685	id => "infobox",
		2686	title => "Book",
		2687	reply => undef,
		2688	tooltip => "The contents of a note or book",
		2689	},
		2690	"c/lookat" => {
		2691	id => "infobox",
		2692	title => "Look",
		2693	reply => undef,
		2694	tooltip => "What you saw there",
		2695	},
		2696	);
		2697
		2698	sub cf::client::send_msg {
		2699	my ($self, $channel, $msg, $color, @extra) = @_;
		2700
		2701	$msg = $self->pl->expand_cfpod ($msg);
		2702
		2703	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2704
		2705	# check predefined channels, for the benefit of C
		2706	if ($CHANNEL{$channel}) {
		2707	$channel = $CHANNEL{$channel};
		2708
		2709	$self->ext_msg (channel_info => $channel)
		2710	if $self->can_msg;
		2711
		2712	$channel = $channel->{id};
		2713
		2714	} elsif (ref $channel) {
		2715	# send meta info to client, if not yet sent
		2716	unless (exists $self->{channel}{$channel->{id}}) {
		2717	$self->{channel}{$channel->{id}} = $channel;
		2718	$self->ext_msg (channel_info => $channel)
		2719	if $self->can_msg;
		2720	}
		2721
		2722	$channel = $channel->{id};
		2723	}
		2724
		2725	return unless @extra || length $msg;
		2726
		2727	if ($self->can_msg) {
		2728	# default colour, mask it out
		2729	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2730	if $color & cf::NDI_DEF;
		2731
		2732	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2733	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2734	} else {
		2735	if ($color >= 0) {
		2736	# replace some tags by gcfclient-compatible ones
		2737	for ($msg) {
		2738	1 while
		2739	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2740	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2741	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2742	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2743	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2744	}
		2745
		2746	$color &= cf::NDI_COLOR_MASK;
		2747
		2748	utf8::encode $msg;
		2749
		2750	if (0 && $msg =~ /\[/) {
		2751	# COMMAND/INFO
		2752	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2753	} else {
		2754	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2755	$self->send_packet ("drawinfo $color $msg")
		2756	}
		2757	}
		2758	}
		2759	}
		2760
		2761	=item $client->ext_msg ($type, @msg)
		2762
		2763	Sends an ext event to the client.
		2764
		2765	=cut
		2766
		2767	sub cf::client::ext_msg($$@) {
		2768	my ($self, $type, @msg) = @_;
		2769
		2770	if ($self->extcmd == 2) {
		2771	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2772	} elsif ($self->extcmd == 1) { # TODO: remove
		2773	push @msg, msgtype => "event_$type";
		2774	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2775	}
		2776	}
		2777
		2778	=item $client->ext_reply ($msgid, @msg)
		2779
		2780	Sends an ext reply to the client.
		2781
		2782	=cut
		2783
		2784	sub cf::client::ext_reply($$@) {
		2785	my ($self, $id, @msg) = @_;
		2786
		2787	if ($self->extcmd == 2) {
		2788	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2789	} elsif ($self->extcmd == 1) {
		2790	#TODO: version 1, remove
		2791	unshift @msg, msgtype => "reply", msgid => $id;
		2792	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2793	}
		2794	}
1672		2795
1673	=item $success = $client->query ($flags, "text", \&cb)	2796	=item $success = $client->query ($flags, "text", \&cb)
1674		2797
1675	Queues a query to the client, calling the given callback with	2798	Queues a query to the client, calling the given callback with
1676	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2799	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1677	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2800	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1678		2801
1679	Queries can fail, so check the return code. Or don't, as queries will become	2802	Queries can fail, so check the return code. Or don't, as queries will
1680	reliable at some point in the future.	2803	become reliable at some point in the future.
1681		2804
1682	=cut	2805	=cut
1683		2806
1684	sub cf::client::query {	2807	sub cf::client::query {
1685	my ($self, $flags, $text, $cb) = @_;	2808	my ($self, $flags, $text, $cb) = @_;
…		…
1693	utf8::encode $text;	2816	utf8::encode $text;
1694	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2817	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1695		2818
1696	$self->send_packet ($self->{query_queue}[0][0])	2819	$self->send_packet ($self->{query_queue}[0][0])
1697	if @{ $self->{query_queue} } == 1;	2820	if @{ $self->{query_queue} } == 1;
		2821
		2822	1
1698	}	2823	}
1699		2824
1700	cf::client->attach (	2825	cf::client->attach (
		2826	on_connect => sub {
		2827	my ($ns) = @_;
		2828
		2829	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2830	},
1701	on_reply => sub {	2831	on_reply => sub {
1702	my ($ns, $msg) = @_;	2832	my ($ns, $msg) = @_;
1703		2833
1704	# this weird shuffling is so that direct followup queries	2834	# this weird shuffling is so that direct followup queries
1705	# get handled first	2835	# get handled first
1706	my $queue = delete $ns->{query_queue};	2836	my $queue = delete $ns->{query_queue}
		2837	or return; # be conservative, not sure how that can happen, but we saw a crash here
1707		2838
1708	(shift @$queue)->[1]->($msg);	2839	(shift @$queue)->[1]->($msg);
		2840	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1709		2841
1710	push @{ $ns->{query_queue} }, @$queue;	2842	push @{ $ns->{query_queue} }, @$queue;
1711		2843
1712	if (@{ $ns->{query_queue} } == @$queue) {	2844	if (@{ $ns->{query_queue} } == @$queue) {
1713	if (@$queue) {	2845	if (@$queue) {
…		…
1715	} else {	2847	} else {
1716	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2848	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1717	}	2849	}
1718	}	2850	}
1719	},	2851	},
		2852	on_exticmd => sub {
		2853	my ($ns, $buf) = @_;
		2854
		2855	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2856
		2857	if (ref $msg) {
		2858	my ($type, $reply, @payload) =
		2859	"ARRAY" eq ref $msg
		2860	? @$msg
		2861	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2862
		2863	my @reply;
		2864
		2865	if (my $cb = $EXTICMD{$type}) {
		2866	@reply = $cb->($ns, @payload);
		2867	}
		2868
		2869	$ns->ext_reply ($reply, @reply)
		2870	if $reply;
		2871
		2872	} else {
		2873	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2874	}
		2875
		2876	cf::override;
		2877	},
1720	);	2878	);
1721		2879
1722	=item $client->coro (\&cb)	2880	=item $client->async (\&cb)
1723		2881
1724	Create a new coroutine, running the specified callback. The coroutine will	2882	Create a new coroutine, running the specified callback. The coroutine will
1725	be automatically cancelled when the client gets destroyed (e.g. on logout,	2883	be automatically cancelled when the client gets destroyed (e.g. on logout,
1726	or loss of connection).	2884	or loss of connection).
1727		2885
1728	=cut	2886	=cut
1729		2887
1730	sub cf::client::coro {	2888	sub cf::client::async {
1731	my ($self, $cb) = @_;	2889	my ($self, $cb) = @_;
1732		2890
1733	my $coro; $coro = async {	2891	my $coro = &Coro::async ($cb);
1734	eval {
1735	$cb->();
1736	};
1737	warn $@ if $@;
1738	};
1739		2892
1740	$coro->on_destroy (sub {	2893	$coro->on_destroy (sub {
1741	delete $self->{_coro}{$coro+0};	2894	delete $self->{_coro}{$coro+0};
1742	});	2895	});
1743		2896
…		…
1770	our $safe = new Safe "safe";	2923	our $safe = new Safe "safe";
1771	our $safe_hole = new Safe::Hole;	2924	our $safe_hole = new Safe::Hole;
1772		2925
1773	$SIG{FPE} = 'IGNORE';	2926	$SIG{FPE} = 'IGNORE';
1774		2927
1775	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2928	$safe->permit_only (Opcode::opset qw(
		2929	:base_core :base_mem :base_orig :base_math
		2930	grepstart grepwhile mapstart mapwhile
		2931	sort time
		2932	));
1776		2933
1777	# here we export the classes and methods available to script code	2934	# here we export the classes and methods available to script code
1778		2935
1779	=pod	2936	=pod
1780		2937
1781	The following fucntions and emthods are available within a safe environment:	2938	The following functions and methods are available within a safe environment:
1782		2939
1783	cf::object contr pay_amount pay_player map	2940	cf::object
		2941	contr pay_amount pay_player map x y force_find force_add destroy
		2942	insert remove name archname title slaying race decrease_ob_nr
		2943
1784	cf::object::player player	2944	cf::object::player
1785	cf::player peaceful	2945	player
1786	cf::map trigger	2946
		2947	cf::player
		2948	peaceful
		2949
		2950	cf::map
		2951	trigger
1787		2952
1788	=cut	2953	=cut
1789		2954
1790	for (	2955	for (
1791	["cf::object" => qw(contr pay_amount pay_player map)],	2956	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2957	insert remove inv name archname title slaying race
		2958	decrease_ob_nr destroy)],
1792	["cf::object::player" => qw(player)],	2959	["cf::object::player" => qw(player)],
1793	["cf::player" => qw(peaceful)],	2960	["cf::player" => qw(peaceful)],
1794	["cf::map" => qw(trigger)],	2961	["cf::map" => qw(trigger)],
1795	) {	2962	) {
1796	no strict 'refs';	2963	no strict 'refs';
…		…
1867	=back	3034	=back
1868		3035
1869	=cut	3036	=cut
1870		3037
1871	#############################################################################	3038	#############################################################################
		3039	# the server's init and main functions
1872		3040
1873	=head2 EXTENSION DATABASE SUPPORT	3041	sub load_facedata($) {
		3042	my ($path) = @_;
1874		3043
1875	Crossfire maintains a very simple database for extension use. It can	3044	# HACK to clear player env face cache, we need some signal framework
1876	currently store anything that can be serialised using Storable, which	3045	# for this (global event?)
1877	excludes objects.	3046	%ext::player_env::MUSIC_FACE_CACHE = ();
1878		3047
1879	The parameter C<$family> should best start with the name of the extension	3048	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1880	using it, it should be unique.
1881		3049
1882	=over 4	3050	warn "loading facedata from $path\n";
1883		3051
1884	=item $hashref = cf::db_get $family	3052	my $facedata;
		3053	0 < aio_load $path, $facedata
		3054	or die "$path: $!";
1885		3055
1886	Return a hashref for use by the extension C<$family>, which can be	3056	$facedata = Coro::Storable::thaw $facedata;
1887	modified. After modifications, you have to call C<cf::db_dirty> or
1888	C<cf::db_sync>.
1889		3057
1890	=item $value = cf::db_get $family => $key	3058	$facedata->{version} == 2
		3059	or cf::cleanup "$path: version mismatch, cannot proceed.";
1891		3060
1892	Returns a single value from the database	3061	# patch in the exptable
1893		3062	$facedata->{resource}{"res/exp_table"} = {
1894	=item cf::db_put $family => $hashref	3063	type => FT_RSRC,
1895		3064	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1896	Stores the given family hashref into the database. Updates are delayed, if
1897	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1898
1899	=item cf::db_put $family => $key => $value
1900
1901	Stores the given C<$value> in the family hash. Updates are delayed, if you
1902	want the data to be synced to disk immediately, use C<cf::db_sync>.
1903
1904	=item cf::db_dirty
1905
1906	Marks the database as dirty, to be updated at a later time.
1907
1908	=item cf::db_sync
1909
1910	Immediately write the database to disk I<if it is dirty>.
1911
1912	=cut
1913
1914	our $DB;
1915
1916	{
1917	my $path = cf::localdir . "/database.pst";
1918
1919	sub db_load() {
1920	$DB = stat $path ? Storable::retrieve $path : { };
1921	}
1922
1923	my $pid;
1924
1925	sub db_save() {
1926	waitpid $pid, 0 if $pid;
1927	if (0 == ($pid = fork)) {
1928	$DB->{_meta}{version} = 1;
1929	Storable::nstore $DB, "$path~";
1930	rename "$path~", $path;
1931	cf::_exit 0 if defined $pid;
1932	}
1933	}
1934
1935	my $dirty;
1936
1937	sub db_sync() {
1938	db_save if $dirty;
1939	undef $dirty;
1940	}
1941
1942	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1943	db_sync;
1944	});	3065	};
		3066	cf::cede_to_tick;
1945		3067
1946	sub db_dirty() {
1947	$dirty = 1;
1948	$idle->start;
1949	}	3068	{
		3069	my $faces = $facedata->{faceinfo};
1950		3070
1951	sub db_get($;$) {	3071	while (my ($face, $info) = each %$faces) {
1952	@_ >= 2	3072	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1953	? $DB->{$_[0]}{$_[1]}	3073	cf::face::set_visibility $idx, $info->{visibility};
1954	: ($DB->{$_[0]} ||= { })	3074	cf::face::set_magicmap $idx, $info->{magicmap};
1955	}	3075	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3076	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1956		3077
1957	sub db_put($$;$) {	3078	cf::cede_to_tick;
1958	if (@_ >= 3) {
1959	$DB->{$_[0]}{$_[1]} = $_[2];
1960	} else {
1961	$DB->{$_[0]} = $_[1];
1962	}
1963	db_dirty;
1964	}
1965
1966	cf::global->attach (
1967	prio => 10000,
1968	on_cleanup => sub {
1969	db_sync;
1970	},	3079	}
1971	);
1972	}
1973		3080
1974	#############################################################################	3081	while (my ($face, $info) = each %$faces) {
1975	# the server's main()	3082	next unless $info->{smooth};
		3083	my $idx = cf::face::find $face
		3084	or next;
		3085	if (my $smooth = cf::face::find $info->{smooth}) {
		3086	cf::face::set_smooth $idx, $smooth;
		3087	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3088	} else {
		3089	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3090	}
1976		3091
1977	sub cfg_load {	3092	cf::cede_to_tick;
		3093	}
		3094	}
		3095
		3096	{
		3097	my $anims = $facedata->{animinfo};
		3098
		3099	while (my ($anim, $info) = each %$anims) {
		3100	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3101	cf::cede_to_tick;
		3102	}
		3103
		3104	cf::anim::invalidate_all; # d'oh
		3105	}
		3106
		3107	{
		3108	# TODO: for gcfclient pleasure, we should give resources
		3109	# that gcfclient doesn't grok a >10000 face index.
		3110	my $res = $facedata->{resource};
		3111
		3112	my $soundconf = delete $res->{"res/sound.conf"};
		3113
		3114	while (my ($name, $info) = each %$res) {
		3115	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3116	my $data;
		3117
		3118	if ($info->{type} & 1) {
		3119	# prepend meta info
		3120
		3121	my $meta = $enc->encode ({
		3122	name => $name,
		3123	%{ $info->{meta} || {} },
		3124	});
		3125
		3126	$data = pack "(w/a*)*", $meta, $info->{data};
		3127	} else {
		3128	$data = $info->{data};
		3129	}
		3130
		3131	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3132	cf::face::set_type $idx, $info->{type};
		3133
		3134	cf::cede_to_tick;
		3135	}
		3136
		3137	if ($soundconf) {
		3138	$soundconf = $enc->decode (delete $soundconf->{data});
		3139
		3140	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3141	my $sound = $soundconf->{compat}[$_]
		3142	or next;
		3143
		3144	my $face = cf::face::find "sound/$sound->[1]";
		3145	cf::sound::set $sound->[0] => $face;
		3146	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3147	}
		3148
		3149	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3150	my $face = cf::face::find "sound/$v";
		3151	cf::sound::set $k => $face;
		3152	}
		3153	}
		3154	}
		3155
		3156	1
		3157	}
		3158
		3159	register_exticmd fx_want => sub {
		3160	my ($ns, $want) = @_;
		3161
		3162	while (my ($k, $v) = each %$want) {
		3163	$ns->fx_want ($k, $v);
		3164	}
		3165	};
		3166
		3167	sub reload_regions {
		3168	# HACK to clear player env face cache, we need some signal framework
		3169	# for this (global event?)
		3170	%ext::player_env::MUSIC_FACE_CACHE = ();
		3171
		3172	load_resource_file "$MAPDIR/regions"
		3173	or die "unable to load regions file\n";
		3174
		3175	for (cf::region::list) {
		3176	$_->{match} = qr/$_->{match}/
		3177	if exists $_->{match};
		3178	}
		3179	}
		3180
		3181	sub reload_facedata {
		3182	load_facedata "$DATADIR/facedata"
		3183	or die "unable to load facedata\n";
		3184	}
		3185
		3186	sub reload_archetypes {
		3187	load_resource_file "$DATADIR/archetypes"
		3188	or die "unable to load archetypes\n";
		3189	#d# NEED to laod twice to resolve forward references
		3190	# this really needs to be done in an extra post-pass
		3191	# (which needs to be synchronous, so solve it differently)
		3192	load_resource_file "$DATADIR/archetypes"
		3193	or die "unable to load archetypes\n";
		3194	}
		3195
		3196	sub reload_treasures {
		3197	load_resource_file "$DATADIR/treasures"
		3198	or die "unable to load treasurelists\n";
		3199	}
		3200
		3201	sub reload_resources {
		3202	warn "reloading resource files...\n";
		3203
		3204	reload_regions;
		3205	reload_facedata;
		3206	#reload_archetypes;#d#
		3207	reload_archetypes;
		3208	reload_treasures;
		3209
		3210	warn "finished reloading resource files\n";
		3211	}
		3212
		3213	sub init {
		3214	reload_resources;
		3215	}
		3216
		3217	sub reload_config {
1978	open my $fh, "<:utf8", cf::confdir . "/config"	3218	open my $fh, "<:utf8", "$CONFDIR/config"
1979	or return;	3219	or return;
1980		3220
1981	local $/;	3221	local $/;
1982	*CFG = YAML::Syck::Load <$fh>;	3222	*CFG = YAML::Syck::Load <$fh>;
		3223
		3224	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3225
		3226	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3227	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3228
		3229	if (exists $CFG{mlockall}) {
		3230	eval {
		3231	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3232	and die "WARNING: m(un)lockall failed: $!\n";
		3233	};
		3234	warn $@ if $@;
		3235	}
1983	}	3236	}
1984		3237
1985	sub main {	3238	sub main {
1986	# we must not ever block the main coroutine	3239	# we must not ever block the main coroutine
1987	local $Coro::idle = sub {	3240	local $Coro::idle = sub {
1988	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3241	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1989	(Coro::unblock_sub {	3242	(async {
		3243	$Coro::current->{desc} = "IDLE BUG HANDLER";
1990	Event::one_event;	3244	Event::one_event;
1991	})->();	3245	})->prio (Coro::PRIO_MAX);
1992	};	3246	};
1993		3247
1994	cfg_load;	3248	reload_config;
1995	db_load;	3249	db_init;
1996	load_extensions;	3250	load_extensions;
		3251
		3252	$TICK_WATCHER->start;
1997	Event::loop;	3253	Event::loop;
1998	}	3254	}
1999		3255
2000	#############################################################################	3256	#############################################################################
2001	# initialisation	3257	# initialisation and cleanup
2002		3258
		3259	# install some emergency cleanup handlers
		3260	BEGIN {
		3261	for my $signal (qw(INT HUP TERM)) {
		3262	Event->signal (
		3263	reentrant => 0,
		3264	data => WF_AUTOCANCEL,
		3265	signal => $signal,
		3266	prio => 0,
		3267	cb => sub {
		3268	cf::cleanup "SIG$signal";
		3269	},
		3270	);
		3271	}
		3272	}
		3273
		3274	sub write_runtime {
		3275	my $runtime = "$LOCALDIR/runtime";
		3276
		3277	# first touch the runtime file to show we are still running:
		3278	# the fsync below can take a very very long time.
		3279
		3280	IO::AIO::aio_utime $runtime, undef, undef;
		3281
		3282	my $guard = cf::lock_acquire "write_runtime";
		3283
		3284	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3285	or return;
		3286
		3287	my $value = $cf::RUNTIME + 90 + 10;
		3288	# 10 is the runtime save interval, for a monotonic clock
		3289	# 60 allows for the watchdog to kill the server.
		3290
		3291	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3292	and return;
		3293
		3294	# always fsync - this file is important
		3295	aio_fsync $fh
		3296	and return;
		3297
		3298	# touch it again to show we are up-to-date
		3299	aio_utime $fh, undef, undef;
		3300
		3301	close $fh
		3302	or return;
		3303
		3304	aio_rename "$runtime~", $runtime
		3305	and return;
		3306
		3307	warn "runtime file written.\n";
		3308
		3309	1
		3310	}
		3311
		3312	sub emergency_save() {
		3313	my $freeze_guard = cf::freeze_mainloop;
		3314
		3315	warn "enter emergency perl save\n";
		3316
		3317	cf::sync_job {
		3318	# use a peculiar iteration method to avoid tripping on perl
		3319	# refcount bugs in for. also avoids problems with players
		3320	# and maps saved/destroyed asynchronously.
		3321	warn "begin emergency player save\n";
		3322	for my $login (keys %cf::PLAYER) {
		3323	my $pl = $cf::PLAYER{$login} or next;
		3324	$pl->valid or next;
		3325	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3326	$pl->save;
		3327	}
		3328	warn "end emergency player save\n";
		3329
		3330	warn "begin emergency map save\n";
		3331	for my $path (keys %cf::MAP) {
		3332	my $map = $cf::MAP{$path} or next;
		3333	$map->valid or next;
		3334	$map->save;
		3335	}
		3336	warn "end emergency map save\n";
		3337
		3338	warn "begin emergency database checkpoint\n";
		3339	BDB::db_env_txn_checkpoint $DB_ENV;
		3340	warn "end emergency database checkpoint\n";
		3341	};
		3342
		3343	warn "leave emergency perl save\n";
		3344	}
		3345
		3346	sub post_cleanup {
		3347	my ($make_core) = @_;
		3348
		3349	warn Carp::longmess "post_cleanup backtrace"
		3350	if $make_core;
		3351	}
		3352
2003	sub reload() {	3353	sub do_reload_perl() {
2004	# can/must only be called in main	3354	# can/must only be called in main
2005	if ($Coro::current != $Coro::main) {	3355	if ($Coro::current != $Coro::main) {
2006	warn "can only reload from main coroutine\n";	3356	warn "can only reload from main coroutine";
2007	return;	3357	return;
2008	}	3358	}
2009		3359
2010	warn "reloading...";	3360	warn "reloading...";
2011		3361
2012	local $FREEZE = 1;	3362	warn "entering sync_job";
		3363
		3364	cf::sync_job {
		3365	cf::write_runtime; # external watchdog should not bark
2013	cf::emergency_save;	3366	cf::emergency_save;
		3367	cf::write_runtime; # external watchdog should not bark
2014		3368
2015	eval {	3369	warn "syncing database to disk";
		3370	BDB::db_env_txn_checkpoint $DB_ENV;
		3371
2016	# if anything goes wrong in here, we should simply crash as we already saved	3372	# if anything goes wrong in here, we should simply crash as we already saved
2017		3373
2018	# cancel all watchers	3374	warn "cancelling all WF_AUTOCANCEL watchers";
2019	for (Event::all_watchers) {	3375	for (Event::all_watchers) {
2020	$_->cancel if $_->data & WF_AUTOCANCEL;	3376	$_->cancel if $_->data & WF_AUTOCANCEL;
2021	}	3377	}
2022		3378
		3379	warn "flushing outstanding aio requests";
		3380	for (;;) {
		3381	BDB::flush;
		3382	IO::AIO::flush;
		3383	Coro::cede_notself;
		3384	last unless IO::AIO::nreqs || BDB::nreqs;
		3385	warn "iterate...";
		3386	}
		3387
		3388	++$RELOAD;
		3389
2023	# cancel all extension coros	3390	warn "cancelling all extension coros";
2024	$_->cancel for values %EXT_CORO;	3391	$_->cancel for values %EXT_CORO;
2025	%EXT_CORO = ();	3392	%EXT_CORO = ();
2026		3393
2027	# unload all extensions	3394	warn "removing commands";
2028	for (@exts) {	3395	%COMMAND = ();
		3396
		3397	warn "removing ext/exti commands";
		3398	%EXTCMD = ();
		3399	%EXTICMD = ();
		3400
		3401	warn "unloading/nuking all extensions";
		3402	for my $pkg (@EXTS) {
2029	warn "unloading <$_>";	3403	warn "... unloading $pkg";
2030	unload_extension $_;	3404
		3405	if (my $cb = $pkg->can ("unload")) {
		3406	eval {
		3407	$cb->($pkg);
		3408	1
		3409	} or warn "$pkg unloaded, but with errors: $@";
2031	}	3410	}
2032		3411
		3412	warn "... nuking $pkg";
		3413	Symbol::delete_package $pkg;
		3414	}
		3415
2033	# unload all modules loaded from $LIBDIR	3416	warn "unloading all perl modules loaded from $LIBDIR";
2034	while (my ($k, $v) = each %INC) {	3417	while (my ($k, $v) = each %INC) {
2035	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3418	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2036		3419
2037	warn "removing <$k>";	3420	warn "... unloading $k";
2038	delete $INC{$k};	3421	delete $INC{$k};
2039		3422
2040	$k =~ s/\.pm$//;	3423	$k =~ s/\.pm$//;
2041	$k =~ s/\//::/g;	3424	$k =~ s/\//::/g;
2042		3425
…		…
2045	}	3428	}
2046		3429
2047	Symbol::delete_package $k;	3430	Symbol::delete_package $k;
2048	}	3431	}
2049		3432
2050	# sync database to disk
2051	cf::db_sync;
2052	IO::AIO::flush;
2053
2054	# get rid of safe::, as good as possible	3433	warn "getting rid of safe::, as good as possible";
2055	Symbol::delete_package "safe::$_"	3434	Symbol::delete_package "safe::$_"
2056	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3435	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2057		3436
2058	# remove register_script_function callbacks
2059	# TODO
2060
2061	# unload cf.pm "a bit"	3437	warn "unloading cf.pm \"a bit\"";
2062	delete $INC{"cf.pm"};	3438	delete $INC{"cf.pm"};
		3439	delete $INC{"cf/pod.pm"};
2063		3440
2064	# don't, removes xs symbols, too,	3441	# don't, removes xs symbols, too,
2065	# and global variables created in xs	3442	# and global variables created in xs
2066	#Symbol::delete_package __PACKAGE__;	3443	#Symbol::delete_package __PACKAGE__;
2067		3444
2068	# reload cf.pm	3445	warn "unload completed, starting to reload now";
		3446
2069	warn "reloading cf.pm";	3447	warn "reloading cf.pm";
2070	require cf;	3448	require cf;
2071	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3449	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2072		3450
2073	# load config and database again	3451	warn "loading config and database again";
2074	cf::cfg_load;	3452	cf::reload_config;
2075	cf::db_load;
2076		3453
2077	# load extensions
2078	warn "load extensions";	3454	warn "loading extensions";
2079	cf::load_extensions;	3455	cf::load_extensions;
2080		3456
2081	# reattach attachments to objects	3457	warn "reattaching attachments to objects/players";
2082	warn "reattach";	3458	_global_reattach; # objects, sockets
2083	_global_reattach;	3459	warn "reattaching attachments to maps";
2084	};	3460	reattach $_ for values %MAP;
		3461	warn "reattaching attachments to players";
		3462	reattach $_ for values %PLAYER;
2085		3463
2086	if ($@) {	3464	warn "leaving sync_job";
		3465
		3466	1
		3467	} or do {
2087	warn $@;	3468	warn $@;
2088	warn "error while reloading, exiting.";	3469	warn "error while reloading, exiting.";
2089	exit 1;	3470	exit 1;
2090	}	3471	};
2091		3472
2092	warn "reloaded successfully";	3473	warn "reloaded";
2093	};	3474	};
2094		3475
2095	#############################################################################	3476	our $RELOAD_WATCHER; # used only during reload
2096		3477
2097	unless ($LINK_MAP) {	3478	sub reload_perl() {
2098	$LINK_MAP = cf::map::new;	3479	# doing reload synchronously and two reloads happen back-to-back,
		3480	# coro crashes during coro_state_free->destroy here.
2099		3481
2100	$LINK_MAP->width (41);	3482	$RELOAD_WATCHER ||= Event->timer (
2101	$LINK_MAP->height (41);	3483	reentrant => 0,
2102	$LINK_MAP->alloc;
2103	$LINK_MAP->path ("{link}");
2104	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2105	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2106
2107	# dirty hack because... archetypes are not yet loaded
2108	Event->timer (
2109	after => 2,	3484	after => 0,
		3485	data => WF_AUTOCANCEL,
2110	cb => sub {	3486	cb => sub {
2111	$_[0]->w->cancel;	3487	do_reload_perl;
2112		3488	undef $RELOAD_WATCHER;
2113	# provide some exits "home"
2114	my $exit = cf::object::new "exit";
2115
2116	$exit->slaying ($EMERGENCY_POSITION->[0]);
2117	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2118	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2119
2120	$LINK_MAP->insert ($exit->clone, 19, 19);
2121	$LINK_MAP->insert ($exit->clone, 19, 20);
2122	$LINK_MAP->insert ($exit->clone, 19, 21);
2123	$LINK_MAP->insert ($exit->clone, 20, 19);
2124	$LINK_MAP->insert ($exit->clone, 20, 21);
2125	$LINK_MAP->insert ($exit->clone, 21, 19);
2126	$LINK_MAP->insert ($exit->clone, 21, 20);
2127	$LINK_MAP->insert ($exit->clone, 21, 21);
2128
2129	$exit->destroy;
2130	});	3489	},
2131		3490	);
2132	$LINK_MAP->{deny_save} = 1;
2133	$LINK_MAP->{deny_reset} = 1;
2134
2135	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2136	}	3491	}
2137
2138	register "<global>", __PACKAGE__;
2139		3492
2140	register_command "reload" => sub {	3493	register_command "reload" => sub {
2141	my ($who, $arg) = @_;	3494	my ($who, $arg) = @_;
2142		3495
2143	if ($who->flag (FLAG_WIZ)) {	3496	if ($who->flag (FLAG_WIZ)) {
2144	$who->message ("start of reload.");
2145	reload;
2146	$who->message ("end of reload.");	3497	$who->message ("reloading server.");
		3498	async {
		3499	$Coro::current->{desc} = "perl_reload";
		3500	reload_perl;
		3501	};
2147	}	3502	}
2148	};	3503	};
2149		3504
2150	unshift @INC, $LIBDIR;	3505	unshift @INC, $LIBDIR;
		3506
		3507	my $bug_warning = 0;
		3508
		3509	our @WAIT_FOR_TICK;
		3510	our @WAIT_FOR_TICK_BEGIN;
		3511
		3512	sub wait_for_tick {
		3513	return unless $TICK_WATCHER->is_active;
		3514	return if $Coro::current == $Coro::main;
		3515
		3516	my $signal = new Coro::Signal;
		3517	push @WAIT_FOR_TICK, $signal;
		3518	$signal->wait;
		3519	}
		3520
		3521	sub wait_for_tick_begin {
		3522	return unless $TICK_WATCHER->is_active;
		3523	return if $Coro::current == $Coro::main;
		3524
		3525	my $signal = new Coro::Signal;
		3526	push @WAIT_FOR_TICK_BEGIN, $signal;
		3527	$signal->wait;
		3528	}
2151		3529
2152	$TICK_WATCHER = Event->timer (	3530	$TICK_WATCHER = Event->timer (
2153	reentrant => 0,	3531	reentrant => 0,
		3532	parked => 1,
2154	prio => 0,	3533	prio => 0,
2155	at => $NEXT_TICK || $TICK,	3534	at => $NEXT_TICK || $TICK,
2156	data => WF_AUTOCANCEL,	3535	data => WF_AUTOCANCEL,
2157	cb => sub {	3536	cb => sub {
2158	unless ($FREEZE) {	3537	if ($Coro::current != $Coro::main) {
		3538	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3539	unless ++$bug_warning > 10;
		3540	return;
		3541	}
		3542
		3543	$NOW = $tick_start = Event::time;
		3544
2159	cf::server_tick; # one server iteration	3545	cf::server_tick; # one server iteration
		3546
2160	$RUNTIME += $TICK;	3547	$RUNTIME += $TICK;
2161	}
2162
2163	$NEXT_TICK += $TICK;	3548	$NEXT_TICK += $TICK;
2164		3549
		3550	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3551	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3552	Coro::async_pool {
		3553	$Coro::current->{desc} = "runtime saver";
		3554	write_runtime
		3555	or warn "ERROR: unable to write runtime file: $!";
		3556	};
		3557	}
		3558
		3559	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3560	$sig->send;
		3561	}
		3562	while (my $sig = shift @WAIT_FOR_TICK) {
		3563	$sig->send;
		3564	}
		3565
		3566	$NOW = Event::time;
		3567
2165	# if we are delayed by four ticks or more, skip them all	3568	# if we are delayed by four ticks or more, skip them all
2166	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3569	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2167		3570
2168	$TICK_WATCHER->at ($NEXT_TICK);	3571	$TICK_WATCHER->at ($NEXT_TICK);
2169	$TICK_WATCHER->start;	3572	$TICK_WATCHER->start;
		3573
		3574	$LOAD = ($NOW - $tick_start) / $TICK;
		3575	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3576
		3577	_post_tick;
2170	},	3578	},
2171	);	3579	);
2172		3580
		3581	{
		3582	BDB::min_parallel 8;
2173	IO::AIO::max_poll_time $TICK * 0.2;	3583	BDB::max_poll_time $TICK * 0.1;
2174		3584	$BDB_POLL_WATCHER = Event->io (
2175	Event->io (	3585	reentrant => 0,
2176	fd => IO::AIO::poll_fileno,	3586	fd => BDB::poll_fileno,
2177	poll => 'r',	3587	poll => 'r',
2178	prio => 5,	3588	prio => 0,
2179	data => WF_AUTOCANCEL,
2180	cb => \&IO::AIO::poll_cb,
2181	);
2182
2183	Event->timer (
2184	data => WF_AUTOCANCEL,	3589	data => WF_AUTOCANCEL,
		3590	cb => \&BDB::poll_cb,
		3591	);
		3592
		3593	BDB::set_sync_prepare {
		3594	my $status;
		3595	my $current = $Coro::current;
		3596	(
		3597	sub {
		3598	$status = $!;
		3599	$current->ready; undef $current;
		3600	},
		3601	sub {
		3602	Coro::schedule while defined $current;
		3603	$! = $status;
		3604	},
		3605	)
		3606	};
		3607
		3608	unless ($DB_ENV) {
		3609	$DB_ENV = BDB::db_env_create;
		3610	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3611	| BDB::LOG_AUTOREMOVE, 1);
		3612	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3613	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3614
		3615	cf::sync_job {
		3616	eval {
		3617	BDB::db_env_open
		3618	$DB_ENV,
		3619	$BDBDIR,
		3620	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3621	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3622	0666;
		3623
		3624	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3625	};
		3626
		3627	cf::cleanup "db_env_open(db): $@" if $@;
		3628	};
		3629	}
		3630
		3631	$BDB_DEADLOCK_WATCHER = Event->timer (
2185	after => 0,	3632	after => 3,
2186	interval => 10,	3633	interval => 1,
		3634	hard => 1,
		3635	prio => 0,
		3636	data => WF_AUTOCANCEL,
2187	cb => sub {	3637	cb => sub {
2188	(Coro::unblock_sub {	3638	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2189	write_runtime	3639	},
2190	or warn "ERROR: unable to write runtime file: $!";	3640	);
		3641	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3642	after => 11,
		3643	interval => 60,
		3644	hard => 1,
		3645	prio => 0,
		3646	data => WF_AUTOCANCEL,
		3647	cb => sub {
		3648	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3649	},
		3650	);
		3651	$BDB_TRICKLE_WATCHER = Event->timer (
		3652	after => 5,
		3653	interval => 10,
		3654	hard => 1,
		3655	prio => 0,
		3656	data => WF_AUTOCANCEL,
		3657	cb => sub {
		3658	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3659	},
		3660	);
		3661	}
		3662
		3663	{
		3664	IO::AIO::min_parallel 8;
		3665
		3666	undef $Coro::AIO::WATCHER;
		3667	IO::AIO::max_poll_time $TICK * 0.1;
		3668	$AIO_POLL_WATCHER = Event->io (
		3669	reentrant => 0,
		3670	data => WF_AUTOCANCEL,
		3671	fd => IO::AIO::poll_fileno,
		3672	poll => 'r',
		3673	prio => 0,
		3674	cb => \&IO::AIO::poll_cb,
		3675	);
		3676	}
		3677
		3678	my $_log_backtrace;
		3679
		3680	sub _log_backtrace {
		3681	my ($msg, @addr) = @_;
		3682
		3683	$msg =~ s/\n//;
		3684
		3685	# limit the # of concurrent backtraces
		3686	if ($_log_backtrace < 2) {
		3687	++$_log_backtrace;
		3688	async {
		3689	$Coro::current->{desc} = "abt $msg";
		3690
		3691	my @bt = fork_call {
		3692	@addr = map { sprintf "%x", $_ } @addr;
		3693	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3694	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3695	or die "addr2line: $!";
		3696
		3697	my @funcs;
		3698	my @res = <$fh>;
		3699	chomp for @res;
		3700	while (@res) {
		3701	my ($func, $line) = splice @res, 0, 2, ();
		3702	push @funcs, "[$func] $line";
		3703	}
		3704
		3705	@funcs
		3706	};
		3707
		3708	LOG llevInfo, "[ABT] $msg\n";
		3709	LOG llevInfo, "[ABT] $_\n" for @bt;
		3710	--$_log_backtrace;
2191	})->();	3711	};
		3712	} else {
		3713	LOG llevInfo, "[ABT] $msg\n";
		3714	LOG llevInfo, "[ABT] [suppressed]\n";
2192	},	3715	}
2193	);	3716	}
		3717
		3718	# load additional modules
		3719	use cf::pod;
		3720
		3721	END { cf::emergency_save }
2194		3722
2195	1	3723	1
2196		3724

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines