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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.132 by root, Thu Jan 4 01:35:56 2007 UTC vs.
Revision 1.380 by root, Mon Oct 8 13:58:07 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 4.1 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $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
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
77		122
78	#############################################################################	123	#############################################################################
79		124
80	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
81		126
…		…
88	=item $cf::RUNTIME	133	=item $cf::RUNTIME
89		134
90	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
91	every server tick.	136	every server tick.
92		137
93	=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
94		141
95	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		146
98	=item $cf::NOW	147	=item $cf::NOW
99		148
100	The time of the last (current) server tick.	149	The time of the last (current) server tick.
101		150
102	=item $cf::TICK	151	=item $cf::TICK
103		152
104	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.
105		164
106	=item %cf::CFG	165	=item %cf::CFG
107		166
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	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.
110		181
111	=back	182	=back
112		183
113	=cut	184	=cut
114		185
115	BEGIN {	186	BEGIN {
116	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	188	my $msg = join "", @_;
118	utf8::encode $msg;
119		189
120	$msg .= "\n"	190	$msg .= "\n"
121	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
122		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
123	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
124	};	196	};
125	}	197	}
126		198
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@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';
132	@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)
133		206
134	# 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
135	# within the Safe compartment.	208	# within the Safe compartment.
136	for my $pkg (qw(	209	for my $pkg (qw(
137	cf::global cf::attachable	210	cf::global cf::attachable
…		…
146		219
147	$Event::DIED = sub {	220	$Event::DIED = sub {
148	warn "error in event callback: @_";	221	warn "error in event callback: @_";
149	};	222	};
150		223
151	my %ext_pkg;	224	#############################################################################
152	my @exts;
153	my @hook;
154		225
155	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
156		227
157	=over 4	228	=over 4
158		229
159	=cut	230	=item dumpval $ref
160		231
161	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	}
162		252
163	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
164		254
165	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
166		256
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
175		258
176	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
177		260
178	=cut	261	=cut
179		262
180	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		264
185	=item my $guard = cf::guard { BLOCK }	265	sub to_json ($) { $json_coder->encode ($_[0]) }
186		266	sub from_json ($) { $json_coder->decode ($_[0]) }
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206		267
207	=item cf::lock_wait $string	268	=item cf::lock_wait $string
208		269
209	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
210		271
211	=item my $lock = cf::lock_acquire $string	272	=item my $lock = cf::lock_acquire $string
212		273
213	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
214	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,
215	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
216	returned.	277	returned.
217		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
218	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
219	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 $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
220		288
221	=cut	289	=cut
222		290
223	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
224		293
225	sub lock_wait($) {	294	sub lock_wait($) {
226	my ($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#
227		301
228	# wait for lock, if any	302	# wait for lock, if any
229	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;	305	Coro::schedule;
…		…
237		311
238	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
239	lock_wait $key;	313	lock_wait $key;
240		314
241	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
242		317
243	cf::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
244	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
246	}	322	}
247	}	323	}
248		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
249	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
250		400
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	401	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	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.
253		404
254	=cut	405	=cut
255		406
256	sub async(&) {	407	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		408
265	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
266		410
267	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)
268	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
269	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.
270		415
271	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
272	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
273	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
274	fast or be very important.	419	fast or be very important.
…		…
277		422
278	sub sync_job(&) {	423	sub sync_job(&) {
279	my ($job) = @_;	424	my ($job) = @_;
280		425
281	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
282	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
284		431
		432	LOG llevError | logBacktrace, Carp::longmess "sync job";#d#
		433
285	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	435	# (but this is cancel-safe)
287	local $FREEZE = 1;	436	my $freeze_guard = freeze_mainloop;
288		437
289	my $busy = 1;	438	my $busy = 1;
290	my @res;	439	my @res;
291		440
292	(Coro::async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
293	@res = eval { $job->() };	443	@res = eval { $job->() };
294	warn $@ if $@;	444	warn $@ if $@;
295	undef $busy;	445	undef $busy;
296	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
297		447
298	while ($busy) {	448	while ($busy) {
299	Coro::cede_notself;	449	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	450	}
		451
		452	$time = Event::time - $time;
		453
		454	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		455	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		456
		457	$tick_start += $time; # do not account sync jobs to server load
302		458
303	wantarray ? @res : $res[0]	459	wantarray ? @res : $res[0]
304	} else {	460	} else {
305	# we are in another coroutine, how wonderful, everything just works	461	# we are in another coroutine, how wonderful, everything just works
306		462
307	$job->()	463	$job->()
308	}	464	}
309	}	465	}
310		466
311	=item $coro = cf::coro { BLOCK }	467	=item $coro = cf::async_ext { BLOCK }
312		468
313	Creates and returns a new coro. This coro is automcatially being canceled	469	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	470	extension calling this is being unloaded.
315		471
316	=cut	472	=cut
317		473
318	sub coro(&) {	474	sub async_ext(&) {
319	my $cb = shift;	475	my $cb = shift;
320		476
321	my $coro = &cf::async ($cb);	477	my $coro = &Coro::async ($cb);
322		478
323	$coro->on_destroy (sub {	479	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	480	delete $EXT_CORO{$coro+0};
325	});	481	});
326	$EXT_CORO{$coro+0} = $coro;	482	$EXT_CORO{$coro+0} = $coro;
327		483
328	$coro	484	$coro
329	}	485	}
330		486
331	sub write_runtime {	487	=item fork_call { }, $args
332	my $runtime = cf::localdir . "/runtime";
333		488
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	489	Executes the given code block with the given arguments in a seperate
335	or return;	490	process, returning the results. Everything must be serialisable with
		491	Coro::Storable. May, of course, block. Note that the executed sub may
		492	never block itself or use any form of Event handling.
336		493
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	494	=cut
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;
340		495
341	aio_fsync $fh	496	sub fork_call(&@) {
342	and return;	497	my ($cb, @args) = @_;
343		498
344	close $fh	499	# we seemingly have to make a local copy of the whole thing,
345	or return;	500	# otherwise perl prematurely frees the stuff :/
		501	# TODO: investigate and fix (likely this will be rather laborious)
346		502
347	aio_rename "$runtime~", $runtime	503	my @res = Coro::Util::fork_eval {
348	and return;	504	reset_signals;
		505	&$cb
		506	}, @args;
349		507
		508	wantarray ? @res : $res[-1]
		509	}
		510
		511	=item $value = cf::db_get $family => $key
		512
		513	Returns a single value from the environment database.
		514
		515	=item cf::db_put $family => $key => $value
		516
		517	Stores the given C<$value> in the family. It can currently store binary
		518	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		519
		520	=item $db = cf::db_table "name"
		521
		522	Create and/or open a new database table. The string must not be "db" and must be unique
		523	within each server.
		524
		525	=cut
		526
		527	sub db_table($) {
		528	my ($name) = @_;
		529	my $db = BDB::db_create $DB_ENV;
		530
		531	eval {
		532	$db->set_flags (BDB::CHKSUM);
		533
		534	utf8::encode $name;
		535	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		536	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		537	cf::cleanup "db_open(db): $!" if $!;
		538	};
		539	cf::cleanup "db_open(db): $@" if $@;
		540
		541	$db
		542	}
		543
		544	our $DB;
		545
		546	sub db_init {
		547	cf::sync_job {
		548	$DB ||= db_table "db";
		549	};
		550	}
		551
		552	sub db_get($$) {
		553	my $key = "$_[0]/$_[1]";
		554
		555	cf::sync_job {
		556	BDB::db_get $DB, undef, $key, my $data;
		557
		558	$! ? ()
		559	: $data
350	1	560	}
		561	}
		562
		563	sub db_put($$$) {
		564	BDB::dbreq_pri 4;
		565	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		566	}
		567
		568	=item cf::cache $id => [$paths...], $processversion => $process
		569
		570	Generic caching function that returns the value of the resource $id,
		571	caching and regenerating as required.
		572
		573	This function can block.
		574
		575	=cut
		576
		577	sub cache {
		578	my ($id, $src, $processversion, $process) = @_;
		579
		580	my $meta =
		581	join "\x00",
		582	$processversion,
		583	map {
		584	aio_stat $_
		585	and Carp::croak "$_: $!";
		586
		587	($_, (stat _)[7,9])
		588	} @$src;
		589
		590	my $dbmeta = db_get cache => "$id/meta";
		591	if ($dbmeta ne $meta) {
		592	# changed, we may need to process
		593
		594	my @data;
		595	my $md5;
		596
		597	for (0 .. $#$src) {
		598	0 <= aio_load $src->[$_], $data[$_]
		599	or Carp::croak "$src->[$_]: $!";
		600	}
		601
		602	# if processing is expensive, check
		603	# checksum first
		604	if (1) {
		605	$md5 =
		606	join "\x00",
		607	$processversion,
		608	map {
		609	cf::cede_to_tick;
		610	($src->[$_], Digest::MD5::md5_hex $data[$_])
		611	} 0.. $#$src;
		612
		613
		614	my $dbmd5 = db_get cache => "$id/md5";
		615	if ($dbmd5 eq $md5) {
		616	db_put cache => "$id/meta", $meta;
		617
		618	return db_get cache => "$id/data";
		619	}
		620	}
		621
		622	my $t1 = Time::HiRes::time;
		623	my $data = $process->(\@data);
		624	my $t2 = Time::HiRes::time;
		625
		626	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		627
		628	db_put cache => "$id/data", $data;
		629	db_put cache => "$id/md5" , $md5;
		630	db_put cache => "$id/meta", $meta;
		631
		632	return $data;
		633	}
		634
		635	db_get cache => "$id/data"
		636	}
		637
		638	=item cf::datalog type => key => value, ...
		639
		640	Log a datalog packet of the given type with the given key-value pairs.
		641
		642	=cut
		643
		644	sub datalog($@) {
		645	my ($type, %kv) = @_;
		646	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
351	}	647	}
352		648
353	=back	649	=back
354		650
355	=cut	651	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		652
477	#############################################################################	653	#############################################################################
478		654
479	=head2 ATTACHABLE OBJECTS	655	=head2 ATTACHABLE OBJECTS
480		656
…		…
482	attach callbacks/event handlers (a collection of which is called an "attachment")	658	attach callbacks/event handlers (a collection of which is called an "attachment")
483	to it. All such attachable objects support the following methods.	659	to it. All such attachable objects support the following methods.
484		660
485	In the following description, CLASS can be any of C<global>, C<object>	661	In the following description, CLASS can be any of C<global>, C<object>
486	C<player>, C<client> or C<map> (i.e. the attachable objects in	662	C<player>, C<client> or C<map> (i.e. the attachable objects in
487	crossfire+).	663	Crossfire TRT).
488		664
489	=over 4	665	=over 4
490		666
491	=item $attachable->attach ($attachment, key => $value...)	667	=item $attachable->attach ($attachment, key => $value...)
492		668
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	782	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	783	our @CB_MAP = ();
608		784
609	my %attachment;	785	my %attachment;
610		786
		787	sub cf::attachable::thawer_merge {
		788	# simply override everything except _meta
		789	local $_[0]{_meta};
		790	%{$_[0]} = %{$_[1]};
		791	}
		792
611	sub _attach_cb($$$$) {	793	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	794	my ($registry, $event, $prio, $cb) = @_;
613		795
614	use sort 'stable';	796	use sort 'stable';
615		797
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	831	$registry = $CB_TYPE[$object_type] ||= [];
650		832
651	} elsif ($type eq "subtype") {	833	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	834	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	835	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	836	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		837
656	} elsif ($type eq "package") {	838	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	839	my $pkg = shift @arg;
658		840
659	while (my ($name, $id) = each %cb_id) {	841	while (my ($name, $id) = each %cb_id) {
…		…
688	_attach $registry, $klass, @attach;	870	_attach $registry, $klass, @attach;
689	}	871	}
690		872
691	$obj->{$name} = \%arg;	873	$obj->{$name} = \%arg;
692	} else {	874	} else {
693	warn "object uses attachment '$name' that is not available, postponing.\n";	875	warn "object uses attachment '$name' which is not available, postponing.\n";
694	}	876	}
695		877
696	$obj->{_attachment}{$name} = undef;	878	$obj->{_attachment}{$name} = undef;
697	}	879	}
698		880
…		…
700	if (ref $_[0]) {	882	if (ref $_[0]) {
701	_object_attach @_;	883	_object_attach @_;
702	} else {	884	} else {
703	_attach shift->_attach_registry, @_;	885	_attach shift->_attach_registry, @_;
704	}	886	}
		887	_recalc_want;
705	};	888	};
706		889
707	# all those should be optimised	890	# all those should be optimised
708	sub cf::attachable::detach {	891	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	892	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	895	delete $obj->{_attachment}{$name};
713	reattach ($obj);	896	reattach ($obj);
714	} else {	897	} else {
715	Carp::croak "cannot, currently, detach class attachments";	898	Carp::croak "cannot, currently, detach class attachments";
716	}	899	}
		900	_recalc_want;
717	};	901	};
718		902
719	sub cf::attachable::attached {	903	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	904	my ($obj, $name) = @_;
721		905
…		…
736	";	920	";
737	die if $@;	921	die if $@;
738	}	922	}
739		923
740	our $override;	924	our $override;
741	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	925	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
742		926
743	sub override {	927	sub override {
744	$override = 1;	928	$override = 1;
745	@invoke_results = ();	929	@INVOKE_RESULTS = (@_);
746	}	930	}
747		931
748	sub do_invoke {	932	sub do_invoke {
749	my $event = shift;	933	my $event = shift;
750	my $callbacks = shift;	934	my $callbacks = shift;
751		935
752	@invoke_results = ();	936	@INVOKE_RESULTS = ();
753		937
754	local $override;	938	local $override;
755		939
756	for (@$callbacks) {	940	for (@$callbacks) {
757	eval { &{$_->[1]} };	941	eval { &{$_->[1]} };
…		…
774		958
775	Generate an object-specific event with the given arguments.	959	Generate an object-specific event with the given arguments.
776		960
777	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	961	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
778	removed in future versions), and there is no public API to access override	962	removed in future versions), and there is no public API to access override
779	results (if you must, access C<@cf::invoke_results> directly).	963	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
780		964
781	=back	965	=back
782		966
783	=cut	967	=cut
784		968
785	#############################################################################	969	#############################################################################
786	# object support	970	# object support
		971	#
		972
		973	sub _can_merge {
		974	my ($ob1, $ob2) = @_;
		975
		976	local $Storable::canonical = 1;
		977	my $fob1 = Storable::freeze $ob1;
		978	my $fob2 = Storable::freeze $ob2;
		979
		980	$fob1 eq $fob2
		981	}
787		982
788	sub reattach {	983	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	984	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	985	my ($obj) = @_;
		986
		987	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		988
792	my $registry = $obj->registry;	989	my $registry = $obj->registry;
793		990
794	@$registry = ();	991	@$registry = ();
795		992
…		…
836	sub object_freezer_save {	1033	sub object_freezer_save {
837	my ($filename, $rdata, $objs) = @_;	1034	my ($filename, $rdata, $objs) = @_;
838		1035
839	sync_job {	1036	sync_job {
840	if (length $$rdata) {	1037	if (length $$rdata) {
		1038	utf8::decode (my $decname = $filename);
841	warn sprintf "saving %s (%d,%d)\n",	1039	warn sprintf "saving %s (%d,%d)\n",
842	$filename, length $$rdata, scalar @$objs;	1040	$decname, length $$rdata, scalar @$objs;
843		1041
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1042	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	1043	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1044	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	1045	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	1046	close $fh;
849		1047
850	if (@$objs) {	1048	if (@$objs) {
851	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	1051	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	1052	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	1053	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	1054	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	1055	aio_rename "$filename.pst~", "$filename.pst";
858	}	1056	}
859	} else {	1057	} else {
860	aio_unlink "$filename.pst";	1058	aio_unlink "$filename.pst";
…		…
866	}	1064	}
867	} else {	1065	} else {
868	aio_unlink $filename;	1066	aio_unlink $filename;
869	aio_unlink "$filename.pst";	1067	aio_unlink "$filename.pst";
870	}	1068	}
871	}	1069	};
872	}	1070	}
873		1071
874	sub object_freezer_as_string {	1072	sub object_freezer_as_string {
875	my ($rdata, $objs) = @_;	1073	my ($rdata, $objs) = @_;
876		1074
…		…
888	or return;	1086	or return;
889		1087
890	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
891	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
892	or return;	1090	or return;
893	$av = eval { (Storable::thaw $av)->{objs} };
894	}
895		1091
		1092	my $st = eval { Coro::Storable::thaw $av }
		1093	|| eval { my $guard = Coro::Storable::guard; Storable::thaw $av }; #d# compatibility, remove
		1094	$av = $st->{objs};
		1095	}
		1096
		1097	utf8::decode (my $decname = $filename);
896	warn sprintf "loading %s (%d)\n",	1098	warn sprintf "loading %s (%d,%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	1099	$decname, length $data, scalar @{$av || []};
		1100
898	return ($data, $av);	1101	($data, $av)
899	}	1102	}
		1103
		1104	=head2 COMMAND CALLBACKS
		1105
		1106	=over 4
		1107
		1108	=cut
900		1109
901	#############################################################################	1110	#############################################################################
902	# command handling &c	1111	# command handling &c
903		1112
904	=item cf::register_command $name => \&callback($ob,$args);	1113	=item cf::register_command $name => \&callback($ob,$args);
…		…
917	push @{ $COMMAND{$name} }, [$caller, $cb];	1126	push @{ $COMMAND{$name} }, [$caller, $cb];
918	}	1127	}
919		1128
920	=item cf::register_extcmd $name => \&callback($pl,$packet);	1129	=item cf::register_extcmd $name => \&callback($pl,$packet);
921		1130
922	Register a callbackf ro execution when the client sends an extcmd packet.	1131	Register a callback for execution when the client sends an (synchronous)
		1132	extcmd packet. Ext commands will be processed in the order they are
		1133	received by the server, like other user commands. The first argument is
		1134	the logged-in player. Ext commands can only be processed after a player
		1135	has logged in successfully.
923		1136
924	If the callback returns something, it is sent back as if reply was being	1137	If the callback returns something, it is sent back as if reply was being
925	called.	1138	called.
926		1139
		1140	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1141
		1142	Register a callback for execution when the client sends an (asynchronous)
		1143	exticmd packet. Exti commands are processed by the server as soon as they
		1144	are received, i.e. out of order w.r.t. other commands. The first argument
		1145	is a client socket. Exti commands can be received anytime, even before
		1146	log-in.
		1147
		1148	If the callback returns something, it is sent back as if reply was being
		1149	called.
		1150
927	=cut	1151	=cut
928		1152
929	sub register_extcmd {	1153	sub register_extcmd {
930	my ($name, $cb) = @_;	1154	my ($name, $cb) = @_;
931		1155
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	1156	$EXTCMD{$name} = $cb;
		1157	}
		1158
		1159	sub register_exticmd {
		1160	my ($name, $cb) = @_;
		1161
		1162	$EXTICMD{$name} = $cb;
936	}	1163	}
937		1164
938	cf::player->attach (	1165	cf::player->attach (
939	on_command => sub {	1166	on_command => sub {
940	my ($pl, $name, $params) = @_;	1167	my ($pl, $name, $params) = @_;
…		…
949	cf::override;	1176	cf::override;
950	},	1177	},
951	on_extcmd => sub {	1178	on_extcmd => sub {
952	my ($pl, $buf) = @_;	1179	my ($pl, $buf) = @_;
953		1180
954	my $msg = eval { from_json $buf };	1181	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
955		1182
956	if (ref $msg) {	1183	if (ref $msg) {
		1184	my ($type, $reply, @payload) =
		1185	"ARRAY" eq ref $msg
		1186	? @$msg
		1187	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1188
		1189	my @reply;
		1190
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	@reply = $cb->($pl, @payload);
959	$pl->ext_reply ($msg->{msgid}, %reply);
960	}
961	}	1193	}
		1194
		1195	$pl->ext_reply ($reply, @reply)
		1196	if $reply;
		1197
962	} else {	1198	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1199	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
964	}	1200	}
965		1201
966	cf::override;	1202	cf::override;
967	},	1203	},
968	);	1204	);
969		1205
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	1206	sub load_extensions {
		1207	cf::sync_job {
		1208	my %todo;
		1209
		1210	for my $path (<$LIBDIR/*.ext>) {
		1211	next unless -r $path;
		1212
		1213	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1214	my $base = $1;
		1215	my $pkg = $1;
		1216	$pkg =~ s/[^[:word:]]/_/g;
		1217	$pkg = "ext::$pkg";
		1218
		1219	open my $fh, "<:utf8", $path
		1220	or die "$path: $!";
		1221
		1222	my $source = do { local $/; <$fh> };
		1223
		1224	my %ext = (
		1225	path => $path,
		1226	base => $base,
		1227	pkg => $pkg,
		1228	);
		1229
		1230	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1231	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1232
		1233	$ext{source} =
		1234	"package $pkg; use strict; use utf8;\n"
		1235	. "#line 1 \"$path\"\n{\n"
		1236	. $source
		1237	. "\n};\n1";
		1238
		1239	$todo{$base} = \%ext;
		1240	}
		1241
		1242	my %done;
		1243	while (%todo) {
		1244	my $progress;
		1245
		1246	while (my ($k, $v) = each %todo) {
		1247	for (split /,\s*/, $v->{meta}{depends}) {
		1248	goto skip
		1249	unless exists $done{$_};
		1250	}
		1251
		1252	warn "... loading '$k' into '$v->{pkg}'\n";
		1253
		1254	unless (eval $v->{source}) {
		1255	my $msg = $@ ? "$v->{path}: $@\n"
		1256	: "$v->{base}: extension inactive.\n";
		1257
		1258	if (exists $v->{meta}{mandatory}) {
		1259	warn $msg;
		1260	warn "mandatory extension failed to load, exiting.\n";
		1261	exit 1;
		1262	}
		1263
		1264	warn $msg;
		1265	}
		1266
		1267	$done{$k} = delete $todo{$k};
		1268	push @EXTS, $v->{pkg};
		1269	$progress = 1;
		1270	}
		1271
		1272	skip:
		1273	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1274	unless $progress;
		1275	}
		1276	};
		1277	}
		1278
		1279	#############################################################################
		1280
		1281	=back
		1282
		1283	=head2 CORE EXTENSIONS
		1284
		1285	Functions and methods that extend core crossfire objects.
		1286
		1287	=cut
		1288
		1289	package cf::player;
		1290
		1291	use Coro::AIO;
		1292
		1293	=head3 cf::player
		1294
		1295	=over 4
		1296
		1297	=item cf::player::num_playing
		1298
		1299	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1300
		1301	=cut
		1302
		1303	sub num_playing {
		1304	scalar grep
		1305	$_->ob->map
		1306	&& !$_->hidden
		1307	&& !$_->ob->flag (cf::FLAG_WIZ),
		1308	cf::player::list
		1309	}
		1310
		1311	=item cf::player::find $login
		1312
		1313	Returns the given player object, loading it if necessary (might block).
		1314
		1315	=cut
		1316
		1317	sub playerdir($) {
		1318	"$PLAYERDIR/"
		1319	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1320	}
		1321
		1322	sub path($) {
		1323	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1324
		1325	(playerdir $login) . "/playerdata"
		1326	}
		1327
		1328	sub find_active($) {
		1329	$cf::PLAYER{$_[0]}
		1330	and $cf::PLAYER{$_[0]}->active
		1331	and $cf::PLAYER{$_[0]}
		1332	}
		1333
		1334	sub exists($) {
		1335	my ($login) = @_;
		1336
		1337	$cf::PLAYER{$login}
		1338	or cf::sync_job { !aio_stat path $login }
		1339	}
		1340
		1341	sub find($) {
		1342	return $cf::PLAYER{$_[0]} || do {
		1343	my $login = $_[0];
		1344
		1345	my $guard = cf::lock_acquire "user_find:$login";
		1346
		1347	$cf::PLAYER{$_[0]} || do {
		1348	# rename old playerfiles to new ones
		1349	#TODO: remove when no longer required
		1350	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1351	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1352	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1353	aio_unlink +(playerdir $login) . "/$login.pl";
		1354
		1355	my $f = new_from_file cf::object::thawer path $login
		1356	or return;
		1357
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
		1362	$cf::PLAYER{$login} = $pl
		1363	}
		1364	}
		1365	}
		1366
		1367	sub save($) {
		1368	my ($pl) = @_;
		1369
		1370	return if $pl->{deny_save};
		1371
		1372	my $path = path $pl;
		1373	my $guard = cf::lock_acquire "user_save:$path";
		1374
		1375	return if $pl->{deny_save};
		1376
		1377	aio_mkdir playerdir $pl, 0770;
		1378	$pl->{last_save} = $cf::RUNTIME;
		1379
		1380	$pl->save_pl ($path);
		1381	cf::cede_to_tick;
		1382	}
		1383
		1384	sub new($) {
		1385	my ($login) = @_;
		1386
		1387	my $self = create;
		1388
		1389	$self->ob->name ($login);
		1390	$self->{deny_save} = 1;
		1391
		1392	$cf::PLAYER{$login} = $self;
		1393
		1394	$self
		1395	}
		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
		1405	}
		1406
		1407	=item $pl->quit_character
		1408
		1409	Nukes the player without looking back. If logged in, the connection will
		1410	be destroyed. May block for a long time.
		1411
		1412	=cut
		1413
		1414	sub quit_character {
		1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
		1418
		1419	$pl->{deny_save} = 1;
		1420	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1421
		1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1423	$pl->deactivate;
		1424	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1425	$pl->ns->destroy if $pl->ns;
		1426
		1427	my $path = playerdir $pl;
		1428	my $temp = "$path~$cf::RUNTIME~deleting~";
		1429	aio_rename $path, $temp;
		1430	delete $cf::PLAYER{$pl->ob->name};
		1431	$pl->destroy;
		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
		1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
		1453	}
		1454
		1455	=item cf::player::list_logins
		1456
		1457	Returns am arrayref of all valid playernames in the system, can take a
		1458	while and may block, so not sync_job-capable, ever.
		1459
		1460	=cut
		1461
		1462	sub list_logins {
		1463	my $dirs = aio_readdir $PLAYERDIR
		1464	or return [];
		1465
		1466	my @logins;
		1467
		1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
		1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1474	aio_read $fh, 0, 512, my $buf, 0 or next;
		1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
		1477
		1478	utf8::decode $login;
		1479	push @logins, $login;
		1480	}
		1481
		1482	\@logins
		1483	}
		1484
		1485	=item $player->maps
		1486
		1487	Returns an arrayref of map paths that are private for this
		1488	player. May block.
		1489
		1490	=cut
		1491
		1492	sub maps($) {
		1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
		1496
		1497	my $files = aio_readdir playerdir $pl
		1498	or return;
		1499
		1500	my @paths;
		1501
		1502	for (@$files) {
		1503	utf8::decode $_;
		1504	next if /\.(?:pl|pst)$/;
		1505	next unless /^$PATH_SEP/o;
		1506
		1507	push @paths, cf::map::normalise "~$pl/$_";
		1508	}
		1509
		1510	\@paths
		1511	}
		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
		1564	=item $player->ext_reply ($msgid, @msg)
		1565
		1566	Sends an ext reply to the player.
		1567
		1568	=cut
		1569
		1570	sub ext_reply($$@) {
		1571	my ($self, $id, @msg) = @_;
		1572
		1573	$self->ns->ext_reply ($id, @msg)
		1574	}
		1575
		1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		1583	my ($self, $type, @msg) = @_;
		1584
		1585	$self->ns->ext_msg ($type, @msg);
		1586	}
		1587
		1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
977	my ($path) = @_;	1603	my ($path) = @_;
978		1604
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1605	my ($match, $specificity);
980	my $base = $1;
981	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984		1606
985	warn "loading '$path' into '$pkg'\n";	1607	for my $region (list) {
986		1608	if ($region->{match} && $path =~ $region->{match}) {
987	open my $fh, "<:utf8", $path	1609	($match, $specificity) = ($region, $region->specificity)
988	or die "$path: $!";	1610	if $region->specificity > $specificity;
989		1611	}
990	my $source =
991	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })
994	. "\n};\n1";
995
996	eval $source
997	or die $@ ? "$path: $@\n"
998	: "extension disabled.\n";
999
1000	push @exts, $pkg;
1001	$ext_pkg{$base} = $pkg;
1002
1003	# no strict 'refs';
1004	# @{"$pkg\::ISA"} = ext::;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	1612	}
1019		1613
1020	# remove commands	1614	$match
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}
1045
1046	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;
1049	eval {
1050	load_extension $ext;
1051	1
1052	} or warn "$ext not loaded: $@";
1053	}
1054	}
1055
1056	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093
1094	=head2 CORE EXTENSIONS
1095
1096	Functions and methods that extend core crossfire objects.
1097
1098	=head3 cf::player
1099
1100	=over 4
1101
1102	=item cf::player::exists $login
1103
1104	Returns true when the given account exists.
1105
1106	=cut
1107
1108	sub cf::player::exists($) {
1109	cf::player::find $_[0]
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111	}
1112
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
1114
1115	Sends an ext reply to the player.
1116
1117	=cut
1118
1119	sub cf::player::ext_reply($$$%) {
1120	my ($self, $id, %msg) = @_;
1121
1122	$msg{msgid} = $id;
1123
1124	$self->send ("ext " . to_json \%msg);
1125	}	1615	}
1126		1616
1127	=back	1617	=back
1128
1129		1618
1130	=head3 cf::map	1619	=head3 cf::map
1131		1620
1132	=over 4	1621	=over 4
1133		1622
…		…
1136	package cf::map;	1625	package cf::map;
1137		1626
1138	use Fcntl;	1627	use Fcntl;
1139	use Coro::AIO;	1628	use Coro::AIO;
1140		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1141	our $MAX_RESET = 7200;	1634	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1635	our $DEFAULT_RESET = 3000;
1143		1636
1144	sub generate_random_map {	1637	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1640	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1649	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})	1651	(cf::region::find $rmp->{region}), $rmp->{custom}
		1652	)
		1653	}
		1654
		1655	=item cf::map->register ($regex, $prio)
		1656
		1657	Register a handler for the map path matching the given regex at the
		1658	givne priority (higher is better, built-in handlers have priority 0, the
		1659	default).
		1660
		1661	=cut
		1662
		1663	sub register {
		1664	my (undef, $regex, $prio) = @_;
		1665	my $pkg = caller;
		1666
		1667	no strict;
		1668	push @{"$pkg\::ISA"}, __PACKAGE__;
		1669
		1670	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1671	}
		1672
		1673	# also paths starting with '/'
		1674	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1675
		1676	sub thawer_merge {
		1677	my ($self, $merge) = @_;
		1678
		1679	# we have to keep some variables in memory intact
		1680	local $self->{path};
		1681	local $self->{load_path};
		1682
		1683	$self->SUPER::thawer_merge ($merge);
		1684	}
		1685
		1686	sub normalise {
		1687	my ($path, $base) = @_;
		1688
		1689	$path = "$path"; # make sure its a string
		1690
		1691	$path =~ s/\.map$//;
		1692
		1693	# map plan:
		1694	#
		1695	# /! non-realised random map exit (special hack!)
		1696	# {... are special paths that are not being touched
		1697	# ?xxx/... are special absolute paths
		1698	# ?random/... random maps
		1699	# /... normal maps
		1700	# ~user/... per-player map of a specific user
		1701
		1702	$path =~ s/$PATH_SEP/\//go;
		1703
		1704	# treat it as relative path if it starts with
		1705	# something that looks reasonable
		1706	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1707	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1708
		1709	$base =~ s{[^/]+/?$}{};
		1710	$path = "$base/$path";
		1711	}
		1712
		1713	for ($path) {
		1714	redo if s{//}{/};
		1715	redo if s{/\.?/}{/};
		1716	redo if s{/[^/]+/\.\./}{/};
		1717	}
		1718
		1719	$path
		1720	}
		1721
		1722	sub new_from_path {
		1723	my (undef, $path, $base) = @_;
		1724
		1725	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1726
		1727	$path = normalise $path, $base;
		1728
		1729	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1730	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1731	my $self = bless cf::map::new, $pkg;
		1732	$self->{path} = $path; $self->path ($path);
		1733	$self->init; # pass $1 etc.
		1734	return $self;
		1735	}
		1736	}
		1737
		1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1739	()
		1740	}
		1741
		1742	sub init {
		1743	my ($self) = @_;
		1744
		1745	$self
		1746	}
		1747
		1748	sub as_string {
		1749	my ($self) = @_;
		1750
		1751	"$self->{path}"
		1752	}
		1753
		1754	# the displayed name, this is a one way mapping
		1755	sub visible_name {
		1756	&as_string
		1757	}
		1758
		1759	# the original (read-only) location
		1760	sub load_path {
		1761	my ($self) = @_;
		1762
		1763	"$MAPDIR/$self->{path}.map"
		1764	}
		1765
		1766	# the temporary/swap location
		1767	sub save_path {
		1768	my ($self) = @_;
		1769
		1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1771	"$TMPDIR/$path.map"
		1772	}
		1773
		1774	# the unique path, undef == no special unique path
		1775	sub uniq_path {
		1776	my ($self) = @_;
		1777
		1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1779	"$UNIQUEDIR/$path"
1161	}	1780	}
1162		1781
1163	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1164	# all maps in C++...	1783	# all maps in C++...
1165	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1167		1786
1168	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1170	}	1789	}
1171		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
		1799	sub unlink_save {
		1800	my ($self) = @_;
		1801
		1802	utf8::encode (my $save = $self->save_path);
		1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1805	}
		1806
1172	sub try_load_header($) {	1807	sub load_header_from($) {
1173	my ($path) = @_;	1808	my ($self, $path) = @_;
1174		1809
1175	utf8::encode $path;	1810	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1177	or return;	1812	or return;
1178		1813
1179	my $map = cf::map::new	1814	$self->_load_header ($f)
1180	or return;	1815	or return;
1181		1816
1182	$map->load_header ($path)	1817	local $MAP_LOADING{$self->{path}} = $self;
		1818	$f->resolve_delayed_derefs;
		1819
		1820	$self->{load_path} = $path;
		1821
		1822	1
		1823	}
		1824
		1825	sub load_header_orig {
		1826	my ($self) = @_;
		1827
		1828	$self->load_header_from ($self->load_path)
		1829	}
		1830
		1831	sub load_header_temp {
		1832	my ($self) = @_;
		1833
		1834	$self->load_header_from ($self->save_path)
		1835	}
		1836
		1837	sub prepare_temp {
		1838	my ($self) = @_;
		1839
		1840	$self->last_access ((delete $self->{last_access})
		1841	|| $cf::RUNTIME); #d#
		1842	# safety
		1843	$self->{instantiate_time} = $cf::RUNTIME
		1844	if $self->{instantiate_time} > $cf::RUNTIME;
		1845	}
		1846
		1847	sub prepare_orig {
		1848	my ($self) = @_;
		1849
		1850	$self->{load_original} = 1;
		1851	$self->{instantiate_time} = $cf::RUNTIME;
		1852	$self->last_access ($cf::RUNTIME);
		1853	$self->instantiate;
		1854	}
		1855
		1856	sub load_header {
		1857	my ($self) = @_;
		1858
		1859	if ($self->load_header_temp) {
		1860	$self->prepare_temp;
		1861	} else {
		1862	$self->load_header_orig
1183	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1184		1866
1185	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
1186		1869
1187	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
1188	}	1871	unless $self->default_region;
1189		1872
		1873	1
		1874	}
		1875
1190	sub find_map;	1876	sub find;
1191	sub find_map {	1877	sub find {
1192	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1193		1879
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1199	cf::lock_wait "map_find:$key";	1883	cf::lock_wait "map_find:$path";
1200		1884
1201	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1203		1888
1204	# do it the slow way	1889	my $map = new_from_path cf::map $path
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	$map->last_access ((delete $map->{last_access})
1209	|| $cf::RUNTIME); #d#
1210	# safety
1211	$map->{instantiate_time} = $cf::RUNTIME
1212	if $map->{instantiate_time} > $cf::RUNTIME;
1213	} else {
1214	if (my $rmp = $path->random_map_params) {
1215	$map = generate_random_map $key, $rmp;
1216	} else {
1217	$map = try_load_header $path->load_path;
1218	}
1219
1220	$map or return;	1890	or return;
1221		1891
1222	$map->{load_original} = 1;
1223	$map->{instantiate_time} = $cf::RUNTIME;
1224	$map->last_access ($cf::RUNTIME);
1225	$map->instantiate;
1226
1227	# per-player maps become, after loading, normal maps
1228	$map->per_player (0) if $path->{user_rel};
1229	}
1230
1231	$map->path ($key);
1232	$map->{path} = $path;
1233	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1234		1893
1235	if ($map->should_reset) {	1894	$map->load_header
		1895	or return;
		1896
		1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1898	# doing this can freeze the server in a sync job, obviously
		1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1236	$map->reset;	1902	$map->reset;
1237	undef $guard;	1903	return find $path;
1238	$map = find_map $path
1239	or return;
1240	}	1904	}
1241		1905
1242	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1243	}	1907	}
1244	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1245		1912
1246	sub load {	1913	sub load {
1247	my ($self) = @_;	1914	my ($self) = @_;
1248		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
1249	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1250	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1921	my $guard = cf::lock_acquire "map_data:$path";
1251		1922
		1923	return unless $self->valid;
1252	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1253		1925
1254	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1255		1927
1256	$self->alloc;	1928	$self->alloc;
1257	$self->load_objects ($self->{load_path}, 1)	1929
		1930	$self->pre_load;
		1931	cf::cede_to_tick;
		1932
		1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1258	or return;	1936	or return;
1259		1937
1260	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1261	if delete $self->{load_original};	1939	if delete $self->{load_original};
1262		1940
1263	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1264	utf8::encode $uniq;	1942	utf8::encode $uniq;
1265	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1266	$self->clear_unique_items;	1945	$self->clear_unique_items;
1267	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1268	}	1949	}
1269	}	1950	}
1270		1951
		1952	$f->resolve_delayed_derefs;
		1953
		1954	cf::cede_to_tick;
1271	# now do the right thing for maps	1955	# now do the right thing for maps
1272	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1273
1274	if ($self->{path}->is_style_map) {
1275	$self->{deny_save} = 1;
1276	$self->{deny_reset} = 1;
1277	} else {
1278	$self->fix_auto_apply;
1279	$self->decay_objects;
1280	$self->update_buttons;
1281	$self->set_darkness_map;
1282	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1283	unless $self->difficulty;	1958	unless $self->difficulty;
		1959	cf::cede_to_tick;
		1960
		1961	unless ($self->{deny_activate}) {
		1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
1284	$self->activate;	1968	$self->activate;
1285	}	1969	}
1286		1970
		1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
		1973
1287	$self->in_memory (cf::MAP_IN_MEMORY);	1974	$self->in_memory (cf::MAP_IN_MEMORY);
1288	}	1975	}
1289		1976
1290	sub load_map_sync {	1977	$self->post_load;
		1978	}
		1979
		1980	sub customise_for {
		1981	my ($self, $ob) = @_;
		1982
		1983	return find "~" . $ob->name . "/" . $self->{path}
		1984	if $self->per_player;
		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
		1989	$self
		1990	}
		1991
		1992	# find and load all maps in the 3x3 area around a map
		1993	sub load_neighbours {
		1994	my ($map) = @_;
		1995
		1996	my @neigh; # diagonal neighbours
		1997
		1998	for (0 .. 3) {
		1999	my $neigh = $map->tile_path ($_)
		2000	or next;
		2001	$neigh = find $neigh, $map
		2002	or next;
		2003	$neigh->load;
		2004
		2005	push @neigh,
		2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2008	}
		2009
		2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
		2012	my $neigh = find $path, $origin
		2013	or next;
		2014	$neigh->load;
		2015	}
		2016	}
		2017
		2018	sub find_sync {
1291	my ($path, $origin) = @_;	2019	my ($path, $origin) = @_;
1292		2020
1293	#warn "load_map_sync<$path, $origin>\n";#d#	2021	cf::sync_job { find $path, $origin }
		2022	}
1294		2023
1295	cf::sync_job {	2024	sub do_load_sync {
1296	my $map = cf::map::find_map $path, $origin	2025	my ($map) = @_;
1297	or return;	2026
1298	$map->load;	2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1299	$map	2028	if $Coro::current == $Coro::main;
		2029
		2030	cf::sync_job { $map->load };
		2031	}
		2032
		2033	our %MAP_PREFETCH;
		2034	our $MAP_PREFETCHER = undef;
		2035
		2036	sub find_async {
		2037	my ($path, $origin, $load) = @_;
		2038
		2039	$path = normalise $path, $origin && $origin->{path};
		2040
		2041	if (my $map = $cf::MAP{$path}) {
		2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2043	}
		2044
		2045	$MAP_PREFETCH{$path} |= $load;
		2046
		2047	$MAP_PREFETCHER ||= cf::async {
		2048	$Coro::current->{desc} = "map prefetcher";
		2049
		2050	while (%MAP_PREFETCH) {
		2051	while (my ($k, $v) = each %MAP_PREFETCH) {
		2052	if (my $map = find $k) {
		2053	$map->load if $v;
		2054	}
		2055
		2056	delete $MAP_PREFETCH{$k};
		2057	}
		2058	}
		2059	undef $MAP_PREFETCHER;
1300	}	2060	};
		2061	$MAP_PREFETCHER->prio (6);
		2062
		2063	()
1301	}	2064	}
1302		2065
1303	sub save {	2066	sub save {
1304	my ($self) = @_;	2067	my ($self) = @_;
1305		2068
		2069	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2070
1306	$self->{last_save} = $cf::RUNTIME;	2071	$self->{last_save} = $cf::RUNTIME;
1307		2072
1308	return unless $self->dirty;	2073	return unless $self->dirty;
1309		2074
1310	my $save = $self->{path}->save_path; utf8::encode $save;	2075	my $save = $self->save_path; utf8::encode $save;
1311	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2076	my $uniq = $self->uniq_path; utf8::encode $uniq;
1312		2077
1313	$self->{load_path} = $save;	2078	$self->{load_path} = $save;
1314		2079
1315	return if $self->{deny_save};	2080	return if $self->{deny_save};
1316		2081
1317	local $self->{last_access} = $self->last_access;#d#	2082	local $self->{last_access} = $self->last_access;#d#
1318		2083
		2084	cf::async {
		2085	$Coro::current->{desc} = "map player save";
		2086	$_->contr->save for $self->players;
		2087	};
		2088
1319	if ($uniq) {	2089	if ($uniq) {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1321	$self->save_objects ($uniq, cf::IO_UNIQUES);	2091	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1322	} else {	2092	} else {
1323	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2093	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1324	}	2094	}
1325	}	2095	}
1326		2096
1327	sub swap_out {	2097	sub swap_out {
1328	my ($self) = @_;	2098	my ($self) = @_;
1329		2099
1330	# save first because save cedes	2100	# save first because save cedes
1331	$self->save;	2101	$self->save;
		2102
		2103	my $lock = cf::lock_acquire "map_data:$self->{path}";
1332		2104
1333	return if $self->players;	2105	return if $self->players;
1334	return if $self->in_memory != cf::MAP_IN_MEMORY;	2106	return if $self->in_memory != cf::MAP_IN_MEMORY;
1335	return if $self->{deny_save};	2107	return if $self->{deny_save};
1336		2108
		2109	$self->in_memory (cf::MAP_SWAPPED);
		2110
		2111	$self->deactivate;
		2112	$_->clear_links_to ($self) for values %cf::MAP;
1337	$self->clear;	2113	$self->clear;
1338	$self->in_memory (cf::MAP_SWAPPED);
1339	}	2114	}
1340		2115
1341	sub reset_at {	2116	sub reset_at {
1342	my ($self) = @_;	2117	my ($self) = @_;
1343		2118
1344	# TODO: safety, remove and allow resettable per-player maps	2119	# TODO: safety, remove and allow resettable per-player maps
1345	return 1e99 if $self->{path}{user_rel};
1346	return 1e99 if $self->{deny_reset};	2120	return 1e99 if $self->{deny_reset};
1347		2121
1348	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2122	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1349	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2123	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1350		2124
…		…
1355	my ($self) = @_;	2129	my ($self) = @_;
1356		2130
1357	$self->reset_at <= $cf::RUNTIME	2131	$self->reset_at <= $cf::RUNTIME
1358	}	2132	}
1359		2133
1360	sub unlink_save {
1361	my ($self) = @_;
1362
1363	utf8::encode (my $save = $self->{path}->save_path);
1364	aioreq_pri 3; IO::AIO::aio_unlink $save;
1365	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1366	}
1367
1368	sub rename {
1369	my ($self, $new_path) = @_;
1370
1371	$self->unlink_save;
1372
1373	delete $cf::MAP{$self->path};
1374	$self->{path} = new cf::path $new_path;
1375	$self->path ($self->{path}->as_string);
1376	$cf::MAP{$self->path} = $self;
1377
1378	$self->save;
1379	}
1380
1381	sub reset {	2134	sub reset {
1382	my ($self) = @_;	2135	my ($self) = @_;
1383		2136
		2137	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2138
1384	return if $self->players;	2139	return if $self->players;
1385	return if $self->{path}{user_rel};#d#
1386		2140
1387	warn "resetting map ", $self->path;#d#	2141	warn "resetting map ", $self->path;
		2142
		2143	$self->in_memory (cf::MAP_SWAPPED);
		2144
		2145	# need to save uniques path
		2146	unless ($self->{deny_save}) {
		2147	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2148
		2149	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2150	if $uniq;
		2151	}
1388		2152
1389	delete $cf::MAP{$self->path};	2153	delete $cf::MAP{$self->path};
1390		2154
		2155	$self->deactivate;
1391	$_->clear_links_to ($self) for values %cf::MAP;	2156	$_->clear_links_to ($self) for values %cf::MAP;
		2157	$self->clear;
1392		2158
1393	$self->unlink_save;	2159	$self->unlink_save;
1394	$self->destroy;	2160	$self->destroy;
1395	}	2161	}
1396		2162
1397	my $nuke_counter = "aaaa";	2163	my $nuke_counter = "aaaa";
1398		2164
1399	sub nuke {	2165	sub nuke {
1400	my ($self) = @_;	2166	my ($self) = @_;
1401		2167
		2168	{
		2169	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2170
		2171	delete $cf::MAP{$self->path};
		2172
		2173	$self->unlink_save;
		2174
		2175	bless $self, "cf::map";
		2176	delete $self->{deny_reset};
1402	$self->{deny_save} = 1;	2177	$self->{deny_save} = 1;
1403	$self->reset_timeout (1);	2178	$self->reset_timeout (1);
1404	$self->rename ("{nuke}/" . ($nuke_counter++));	2179	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2180
		2181	$cf::MAP{$self->path} = $self;
		2182	}
		2183
1405	$self->reset; # polite request, might not happen	2184	$self->reset; # polite request, might not happen
1406	}	2185	}
1407		2186
1408	sub customise_for {	2187	=item $maps = cf::map::tmp_maps
1409	my ($map, $ob) = @_;
1410		2188
1411	if ($map->per_player) {	2189	Returns an arrayref with all map paths of currently instantiated and saved
1412	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2190	maps. May block.
		2191
		2192	=cut
		2193
		2194	sub tmp_maps() {
1413	}	2195	[
1414		2196	map {
1415	$map	2197	utf8::decode $_;
		2198	/\.map$/
		2199	? normalise $_
		2200	: ()
		2201	} @{ aio_readdir $TMPDIR or [] }
		2202	]
1416	}	2203	}
1417		2204
1418	sub emergency_save {	2205	=item $maps = cf::map::random_maps
1419	local $cf::FREEZE = 1;
1420		2206
1421	warn "enter emergency map save\n";	2207	Returns an arrayref with all map paths of currently instantiated and saved
		2208	random maps. May block.
1422		2209
1423	cf::sync_job {	2210	=cut
1424	warn "begin emergency map save\n";
1425	$_->save for values %cf::MAP;
1426	};
1427		2211
1428	warn "end emergency map save\n";	2212	sub random_maps() {
		2213	[
		2214	map {
		2215	utf8::decode $_;
		2216	/\.map$/
		2217	? normalise "?random/$_"
		2218	: ()
		2219	} @{ aio_readdir $RANDOMDIR or [] }
		2220	]
		2221	}
		2222
		2223	=item cf::map::unique_maps
		2224
		2225	Returns an arrayref of paths of all shared maps that have
		2226	instantiated unique items. May block.
		2227
		2228	=cut
		2229
		2230	sub unique_maps() {
		2231	[
		2232	map {
		2233	utf8::decode $_;
		2234	/\.map$/
		2235	? normalise $_
		2236	: ()
		2237	} @{ aio_readdir $UNIQUEDIR or [] }
		2238	]
1429	}	2239	}
1430		2240
1431	package cf;	2241	package cf;
1432		2242
1433	=back	2243	=back
1434		2244
		2245	=head3 cf::object
		2246
		2247	=cut
		2248
		2249	package cf::object;
		2250
		2251	=over 4
		2252
		2253	=item $ob->inv_recursive
		2254
		2255	Returns the inventory of the object _and_ their inventories, recursively.
		2256
		2257	=cut
		2258
		2259	sub inv_recursive_;
		2260	sub inv_recursive_ {
		2261	map { $_, inv_recursive_ $_->inv } @_
		2262	}
		2263
		2264	sub inv_recursive {
		2265	inv_recursive_ inv $_[0]
		2266	}
		2267
		2268	=item $ref = $ob->ref
		2269
		2270	creates and returns a persistent reference to an objetc that can be stored as a string.
		2271
		2272	=item $ob = cf::object::deref ($refstring)
		2273
		2274	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2275	even if the object actually exists. May block.
		2276
		2277	=cut
		2278
		2279	sub deref {
		2280	my ($ref) = @_;
		2281
		2282	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
		2294	}
		2295
		2296	package cf;
		2297
		2298	=back
1435		2299
1436	=head3 cf::object::player	2300	=head3 cf::object::player
1437		2301
1438	=over 4	2302	=over 4
1439		2303
…		…
1453		2317
1454	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1455		2319
1456	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1457	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1458	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
1459	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1460	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1461	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
1462	}	2345	}
1463		2346
1464	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1465		2348
1466	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1479		2362
1480	=item $player_object->enter_link	2363	=item $player_object->enter_link
1481		2364
1482	Freezes the player and moves him/her to a special map (C<{link}>).	2365	Freezes the player and moves him/her to a special map (C<{link}>).
1483		2366
1484	The player should be reaosnably safe there for short amounts of time. You	2367	The player should be reasonably safe there for short amounts of time. You
1485	I<MUST> call C<leave_link> as soon as possible, though.	2368	I<MUST> call C<leave_link> as soon as possible, though.
1486		2369
		2370	Will never block.
		2371
1487	=item $player_object->leave_link ($map, $x, $y)	2372	=item $player_object->leave_link ($map, $x, $y)
1488		2373
1489	Moves the player out of the specila link map onto the given map. If the	2374	Moves the player out of the special C<{link}> map onto the specified
1490	map is not valid (or omitted), the player will be moved back to the	2375	map. If the map is not valid (or omitted), the player will be moved back
1491	location he/she was before the call to C<enter_link>, or, if that fails,	2376	to the location he/she was before the call to C<enter_link>, or, if that
1492	to the emergency map position.	2377	fails, to the emergency map position.
1493		2378
1494	Might block.	2379	Might block.
1495		2380
1496	=cut	2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($LINK_MAP) {
		2385	$LINK_MAP = cf::map::find "{link}"
		2386	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2387	$LINK_MAP->load;
		2388	}
		2389
		2390	$LINK_MAP
		2391	}
1497		2392
1498	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1499	my ($self) = @_;	2394	my ($self) = @_;
1500		2395
1501	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1502		2397
1503	return if $self->map == $LINK_MAP;	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1504		2399
1505	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1506	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1507		2402
1508	$self->enter_map ($LINK_MAP, 20, 20);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1509	}	2404	}
1510		2405
1511	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1512	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1513		2410
1514	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1515		2412
1516	unless ($map) {	2413	unless ($map) {
1517	# restore original map position	2414	# restore original map position
1518	($map, $x, $y) = @{ $link_pos || [] };	2415	($map, $x, $y) = @{ $link_pos || [] };
1519	$map = cf::map::find_map $map;	2416	$map = cf::map::find $map;
1520		2417
1521	unless ($map) {	2418	unless ($map) {
1522	($map, $x, $y) = @$EMERGENCY_POSITION;	2419	($map, $x, $y) = @$EMERGENCY_POSITION;
1523	$map = cf::map::find_map $map	2420	$map = cf::map::find $map
1524	or die "FATAL: cannot load emergency map\n";	2421	or die "FATAL: cannot load emergency map\n";
1525	}	2422	}
1526	}	2423	}
1527		2424
1528	($x, $y) = (-1, -1)	2425	($x, $y) = (-1, -1)
…		…
1531	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1532	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1533	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1534		2431
1535	$map->load;	2432	$map->load;
		2433	$map->load_neighbours;
1536		2434
		2435	return unless $self->contr->active;
1537	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1538	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1539	}	2440	}
1540		2441
1541	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1542	on_logout => sub {
1543	my ($pl) = @_;
1544		2443
1545	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1546	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1547	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1548	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1549	};	2448	be called at the end of this process.
1550	}
1551	},
1552	on_login => sub {
1553	my ($pl) = @_;
1554		2449
1555	# try to abort aborted map switching on player login :)
1556	# should happen only on crashes
1557	if ($pl->ob->{_link_pos}) {
1558	$pl->ob->enter_link;
1559	cf::async {
1560	# we need this sleep as the login has a concurrent enter_exit running
1561	# and this sleep increases chances of the player not ending up in scorn
1562	Coro::Timer::sleep 1;
1563	$pl->ob->leave_link;
1564	};
1565	}
1566	},
1567	);
1568
1569	=item $player_object->goto_map ($path, $x, $y)
1570
1571	=cut	2450	=cut
1572		2451
		2452	our $GOTOGEN;
		2453
1573	sub cf::object::player::goto_map {	2454	sub cf::object::player::goto {
1574	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
		2456
		2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1575		2459
1576	$self->enter_link;	2460	$self->enter_link;
1577		2461
1578	(cf::async {	2462	(async {
1579	$path = new cf::path $path;	2463	$Coro::current->{desc} = "player::goto $path $x $y";
1580		2464
1581	my $map = cf::map::find_map $path->as_string;	2465	# *tag paths override both path and x|y
		2466	if ($path =~ /^\*(.*)$/) {
		2467	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2468	my $ob = $obs[rand @obs];
		2469
		2470	# see if we actually can go there
		2471	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2472	$ob = $obs[rand @obs];
		2473	} else {
		2474	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2475	}
		2476	# else put us there anyways for now #d#
		2477
		2478	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2479	} else {
		2480	($path, $x, $y) = (undef, undef, undef);
		2481	}
		2482	}
		2483
		2484	my $map = eval {
		2485	my $map = defined $path ? cf::map::find $path : undef;
		2486
		2487	if ($map) {
1582	$map = $map->customise_for ($self) if $map;	2488	$map = $map->customise_for ($self);
1583		2489	$map = $check->($map) if $check && $map;
1584	# warn "entering ", $map->path, " at ($x, $y)\n"	2490	} else {
1585	# if $map;
1586
1587	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2491	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2492	}
1588		2493
		2494	$map
		2495	};
		2496
		2497	if ($@) {
		2498	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2499	LOG llevError | logBacktrace, Carp::longmess $@;
		2500	}
		2501
		2502	if ($gen == $self->{_goto_generation}) {
		2503	delete $self->{_goto_generation};
1589	$self->leave_link ($map, $x, $y);	2504	$self->leave_link ($map, $x, $y);
		2505	}
		2506
		2507	$done->() if $done;
1590	})->prio (1);	2508	})->prio (1);
1591	}	2509	}
1592		2510
1593	=item $player_object->enter_exit ($exit_object)	2511	=item $player_object->enter_exit ($exit_object)
1594		2512
…		…
1596		2514
1597	sub parse_random_map_params {	2515	sub parse_random_map_params {
1598	my ($spec) = @_;	2516	my ($spec) = @_;
1599		2517
1600	my $rmp = { # defaults	2518	my $rmp = { # defaults
1601	xsize => 10,	2519	xsize => (cf::rndm 15, 40),
1602	ysize => 10,	2520	ysize => (cf::rndm 15, 40),
		2521	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2522	#layout => string,
1603	};	2523	};
1604		2524
1605	for (split /\n/, $spec) {	2525	for (split /\n/, $spec) {
1606	my ($k, $v) = split /\s+/, $_, 2;	2526	my ($k, $v) = split /\s+/, $_, 2;
1607		2527
…		…
1611	$rmp	2531	$rmp
1612	}	2532	}
1613		2533
1614	sub prepare_random_map {	2534	sub prepare_random_map {
1615	my ($exit) = @_;	2535	my ($exit) = @_;
		2536
		2537	my $guard = cf::lock_acquire "exit_prepare:$exit";
1616		2538
1617	# all this does is basically replace the /! path by	2539	# all this does is basically replace the /! path by
1618	# a new random map path (?random/...) with a seed	2540	# a new random map path (?random/...) with a seed
1619	# that depends on the exit object	2541	# that depends on the exit object
1620		2542
1621	my $rmp = parse_random_map_params $exit->msg;	2543	my $rmp = parse_random_map_params $exit->msg;
1622		2544
1623	if ($exit->map) {	2545	if ($exit->map) {
1624	$rmp->{region} = $exit->map->region_name;	2546	$rmp->{region} = $exit->region->name;
1625	$rmp->{origin_map} = $exit->map->path;	2547	$rmp->{origin_map} = $exit->map->path;
1626	$rmp->{origin_x} = $exit->x;	2548	$rmp->{origin_x} = $exit->x;
1627	$rmp->{origin_y} = $exit->y;	2549	$rmp->{origin_y} = $exit->y;
1628	}	2550	}
1629		2551
1630	$rmp->{random_seed} ||= $exit->random_seed;	2552	$rmp->{random_seed} ||= $exit->random_seed;
1631		2553
1632	my $data = cf::to_json $rmp;	2554	my $data = cf::to_json $rmp;
1633	my $md5 = Digest::MD5::md5_hex $data;	2555	my $md5 = Digest::MD5::md5_hex $data;
		2556	my $meta = "$RANDOMDIR/$md5.meta";
1634		2557
1635	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2558	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1636	aio_write $fh, 0, (length $data), $data, 0;	2559	aio_write $fh, 0, (length $data), $data, 0;
		2560	undef $fh;
		2561	aio_rename "$meta~", $meta;
1637		2562
1638	$exit->slaying ("?random/$md5");	2563	$exit->slaying ("?random/$md5");
1639	$exit->msg (undef);	2564	$exit->msg (undef);
1640	}	2565	}
1641	}	2566	}
…		…
1643	sub cf::object::player::enter_exit {	2568	sub cf::object::player::enter_exit {
1644	my ($self, $exit) = @_;	2569	my ($self, $exit) = @_;
1645		2570
1646	return unless $self->type == cf::PLAYER;	2571	return unless $self->type == cf::PLAYER;
1647		2572
		2573	if ($exit->slaying eq "/!") {
		2574	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2575	# the problem is that $exit might not survive long enough
		2576	# so it needs to be done right now, right here
		2577	cf::sync_job { prepare_random_map $exit };
		2578	}
		2579
		2580	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2581	my $hp = $exit->stats->hp;
		2582	my $sp = $exit->stats->sp;
		2583
1648	$self->enter_link;	2584	$self->enter_link;
1649		2585
		2586	# if exit is damned, update players death & WoR home-position
		2587	$self->contr->savebed ($slaying, $hp, $sp)
		2588	if $exit->flag (FLAG_DAMNED);
		2589
1650	(cf::async {	2590	(async {
		2591	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2592
		2593	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2594	unless (eval {
1652	prepare_random_map $exit	2595	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1657		2596
1658	1;	2597	1;
1659	}) {	2598	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2599	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "I'll try to bring you back to the map you were before. "	2600	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2601	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2602	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2603
1665	warn "ERROR in enter_exit: $@";	2604	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2605	$self->leave_link;
1667	}	2606	}
1668	})->prio (1);	2607	})->prio (1);
…		…
1681		2620
1682	sub cf::client::send_drawinfo {	2621	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2622	my ($self, $text, $flags) = @_;
1684		2623
1685	utf8::encode $text;	2624	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2625	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2626	}
1688		2627
		2628	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2629
		2630	Send a drawinfo or msg packet to the client, formatting the msg for the
		2631	client if neccessary. C<$type> should be a string identifying the type of
		2632	the message, with C<log> being the default. If C<$color> is negative, suppress
		2633	the message unless the client supports the msg packet.
		2634
		2635	=cut
		2636
		2637	our %CHANNEL = (
		2638	"c/identify" => {
		2639	id => "infobox",
		2640	title => "Identify",
		2641	reply => undef,
		2642	tooltip => "Items recently identified",
		2643	},
		2644	"c/examine" => {
		2645	id => "infobox",
		2646	title => "Examine",
		2647	reply => undef,
		2648	tooltip => "Signs and other items you examined",
		2649	},
		2650	"c/lookat" => {
		2651	id => "infobox",
		2652	title => "Look",
		2653	reply => undef,
		2654	tooltip => "What you saw there",
		2655	},
		2656	);
		2657
		2658	sub cf::client::send_msg {
		2659	my ($self, $channel, $msg, $color, @extra) = @_;
		2660
		2661	$msg = $self->pl->expand_cfpod ($msg);
		2662
		2663	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2664
		2665	# check predefined channels, for the benefit of C
		2666	if ($CHANNEL{$channel}) {
		2667	$channel = $CHANNEL{$channel};
		2668
		2669	$self->ext_msg (channel_info => $channel)
		2670	if $self->can_msg;
		2671
		2672	$channel = $channel->{id};
		2673
		2674	} elsif (ref $channel) {
		2675	# send meta info to client, if not yet sent
		2676	unless (exists $self->{channel}{$channel->{id}}) {
		2677	$self->{channel}{$channel->{id}} = $channel;
		2678	$self->ext_msg (channel_info => $channel)
		2679	if $self->can_msg;
		2680	}
		2681
		2682	$channel = $channel->{id};
		2683	}
		2684
		2685	return unless @extra || length $msg;
		2686
		2687	if ($self->can_msg) {
		2688	# default colour, mask it out
		2689	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2690	if $color & cf::NDI_DEF;
		2691
		2692	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2693	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2694	} else {
		2695	if ($color >= 0) {
		2696	# replace some tags by gcfclient-compatible ones
		2697	for ($msg) {
		2698	1 while
		2699	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2700	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2701	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2702	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2703	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2704	}
		2705
		2706	$color &= cf::NDI_COLOR_MASK;
		2707
		2708	utf8::encode $msg;
		2709
		2710	if (0 && $msg =~ /\[/) {
		2711	# COMMAND/INFO
		2712	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2713	} else {
		2714	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2715	$self->send_packet ("drawinfo $color $msg")
		2716	}
		2717	}
		2718	}
		2719	}
		2720
		2721	=item $client->ext_msg ($type, @msg)
		2722
		2723	Sends an ext event to the client.
		2724
		2725	=cut
		2726
		2727	sub cf::client::ext_msg($$@) {
		2728	my ($self, $type, @msg) = @_;
		2729
		2730	if ($self->extcmd == 2) {
		2731	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2732	} elsif ($self->extcmd == 1) { # TODO: remove
		2733	push @msg, msgtype => "event_$type";
		2734	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2735	}
		2736	}
		2737
		2738	=item $client->ext_reply ($msgid, @msg)
		2739
		2740	Sends an ext reply to the client.
		2741
		2742	=cut
		2743
		2744	sub cf::client::ext_reply($$@) {
		2745	my ($self, $id, @msg) = @_;
		2746
		2747	if ($self->extcmd == 2) {
		2748	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2749	} elsif ($self->extcmd == 1) {
		2750	#TODO: version 1, remove
		2751	unshift @msg, msgtype => "reply", msgid => $id;
		2752	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2753	}
		2754	}
1689		2755
1690	=item $success = $client->query ($flags, "text", \&cb)	2756	=item $success = $client->query ($flags, "text", \&cb)
1691		2757
1692	Queues a query to the client, calling the given callback with	2758	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2759	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1694	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2760	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1695		2761
1696	Queries can fail, so check the return code. Or don't, as queries will become	2762	Queries can fail, so check the return code. Or don't, as queries will
1697	reliable at some point in the future.	2763	become reliable at some point in the future.
1698		2764
1699	=cut	2765	=cut
1700		2766
1701	sub cf::client::query {	2767	sub cf::client::query {
1702	my ($self, $flags, $text, $cb) = @_;	2768	my ($self, $flags, $text, $cb) = @_;
…		…
1710	utf8::encode $text;	2776	utf8::encode $text;
1711	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2777	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1712		2778
1713	$self->send_packet ($self->{query_queue}[0][0])	2779	$self->send_packet ($self->{query_queue}[0][0])
1714	if @{ $self->{query_queue} } == 1;	2780	if @{ $self->{query_queue} } == 1;
		2781
		2782	1
1715	}	2783	}
1716		2784
1717	cf::client->attach (	2785	cf::client->attach (
		2786	on_connect => sub {
		2787	my ($ns) = @_;
		2788
		2789	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2790	},
1718	on_reply => sub {	2791	on_reply => sub {
1719	my ($ns, $msg) = @_;	2792	my ($ns, $msg) = @_;
1720		2793
1721	# this weird shuffling is so that direct followup queries	2794	# this weird shuffling is so that direct followup queries
1722	# get handled first	2795	# get handled first
1723	my $queue = delete $ns->{query_queue}	2796	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	2797	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		2798
1726	(shift @$queue)->[1]->($msg);	2799	(shift @$queue)->[1]->($msg);
		2800	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2801
1728	push @{ $ns->{query_queue} }, @$queue;	2802	push @{ $ns->{query_queue} }, @$queue;
1729		2803
1730	if (@{ $ns->{query_queue} } == @$queue) {	2804	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2805	if (@$queue) {
…		…
1733	} else {	2807	} else {
1734	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2808	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1735	}	2809	}
1736	}	2810	}
1737	},	2811	},
		2812	on_exticmd => sub {
		2813	my ($ns, $buf) = @_;
		2814
		2815	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2816
		2817	if (ref $msg) {
		2818	my ($type, $reply, @payload) =
		2819	"ARRAY" eq ref $msg
		2820	? @$msg
		2821	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2822
		2823	my @reply;
		2824
		2825	if (my $cb = $EXTICMD{$type}) {
		2826	@reply = $cb->($ns, @payload);
		2827	}
		2828
		2829	$ns->ext_reply ($reply, @reply)
		2830	if $reply;
		2831
		2832	} else {
		2833	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2834	}
		2835
		2836	cf::override;
		2837	},
1738	);	2838	);
1739		2839
1740	=item $client->coro (\&cb)	2840	=item $client->async (\&cb)
1741		2841
1742	Create a new coroutine, running the specified callback. The coroutine will	2842	Create a new coroutine, running the specified callback. The coroutine will
1743	be automatically cancelled when the client gets destroyed (e.g. on logout,	2843	be automatically cancelled when the client gets destroyed (e.g. on logout,
1744	or loss of connection).	2844	or loss of connection).
1745		2845
1746	=cut	2846	=cut
1747		2847
1748	sub cf::client::coro {	2848	sub cf::client::async {
1749	my ($self, $cb) = @_;	2849	my ($self, $cb) = @_;
1750		2850
1751	my $coro = &cf::async ($cb);	2851	my $coro = &Coro::async ($cb);
1752		2852
1753	$coro->on_destroy (sub {	2853	$coro->on_destroy (sub {
1754	delete $self->{_coro}{$coro+0};	2854	delete $self->{_coro}{$coro+0};
1755	});	2855	});
1756		2856
…		…
1783	our $safe = new Safe "safe";	2883	our $safe = new Safe "safe";
1784	our $safe_hole = new Safe::Hole;	2884	our $safe_hole = new Safe::Hole;
1785		2885
1786	$SIG{FPE} = 'IGNORE';	2886	$SIG{FPE} = 'IGNORE';
1787		2887
1788	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2888	$safe->permit_only (Opcode::opset qw(
		2889	:base_core :base_mem :base_orig :base_math
		2890	grepstart grepwhile mapstart mapwhile
		2891	sort time
		2892	));
1789		2893
1790	# here we export the classes and methods available to script code	2894	# here we export the classes and methods available to script code
1791		2895
1792	=pod	2896	=pod
1793		2897
1794	The following fucntions and emthods are available within a safe environment:	2898	The following functions and methods are available within a safe environment:
1795		2899
1796	cf::object contr pay_amount pay_player map	2900	cf::object
		2901	contr pay_amount pay_player map x y force_find force_add
		2902	insert remove name archname title slaying race decrease_ob_nr
		2903
1797	cf::object::player player	2904	cf::object::player
1798	cf::player peaceful	2905	player
1799	cf::map trigger	2906
		2907	cf::player
		2908	peaceful
		2909
		2910	cf::map
		2911	trigger
1800		2912
1801	=cut	2913	=cut
1802		2914
1803	for (	2915	for (
1804	["cf::object" => qw(contr pay_amount pay_player map)],	2916	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2917	insert remove inv name archname title slaying race
		2918	decrease_ob_nr)],
1805	["cf::object::player" => qw(player)],	2919	["cf::object::player" => qw(player)],
1806	["cf::player" => qw(peaceful)],	2920	["cf::player" => qw(peaceful)],
1807	["cf::map" => qw(trigger)],	2921	["cf::map" => qw(trigger)],
1808	) {	2922	) {
1809	no strict 'refs';	2923	no strict 'refs';
…		…
1880	=back	2994	=back
1881		2995
1882	=cut	2996	=cut
1883		2997
1884	#############################################################################	2998	#############################################################################
		2999	# the server's init and main functions
1885		3000
1886	=head2 EXTENSION DATABASE SUPPORT	3001	sub load_facedata($) {
		3002	my ($path) = @_;
1887		3003
1888	Crossfire maintains a very simple database for extension use. It can	3004	# HACK to clear player env face cache, we need some signal framework
1889	currently store anything that can be serialised using Storable, which	3005	# for this (global event?)
1890	excludes objects.	3006	%ext::player_env::MUSIC_FACE_CACHE = ();
1891		3007
1892	The parameter C<$family> should best start with the name of the extension	3008	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1893	using it, it should be unique.
1894		3009
1895	=over 4	3010	warn "loading facedata from $path\n";
1896		3011
1897	=item $hashref = cf::db_get $family	3012	my $facedata;
		3013	0 < aio_load $path, $facedata
		3014	or die "$path: $!";
1898		3015
1899	Return a hashref for use by the extension C<$family>, which can be	3016	$facedata = Coro::Storable::thaw $facedata;
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902		3017
1903	=item $value = cf::db_get $family => $key	3018	$facedata->{version} == 2
		3019	or cf::cleanup "$path: version mismatch, cannot proceed.";
1904		3020
1905	Returns a single value from the database	3021	# patch in the exptable
1906		3022	$facedata->{resource}{"res/exp_table"} = {
1907	=item cf::db_put $family => $hashref	3023	type => FT_RSRC,
1908		3024	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_put $family => $key => $value
1913
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924
1925	=cut
1926
1927	our $DB;
1928
1929	{
1930	my $path = cf::localdir . "/database.pst";
1931
1932	sub db_load() {
1933	$DB = stat $path ? Storable::retrieve $path : { };
1934	}
1935
1936	my $pid;
1937
1938	sub db_save() {
1939	waitpid $pid, 0 if $pid;
1940	if (0 == ($pid = fork)) {
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	3025	};
		3026	cf::cede_to_tick;
1958		3027
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}	3028	{
		3029	my $faces = $facedata->{faceinfo};
1963		3030
1964	sub db_get($;$) {	3031	while (my ($face, $info) = each %$faces) {
1965	@_ >= 2	3032	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1966	? $DB->{$_[0]}{$_[1]}	3033	cf::face::set_visibility $idx, $info->{visibility};
1967	: ($DB->{$_[0]} ||= { })	3034	cf::face::set_magicmap $idx, $info->{magicmap};
1968	}	3035	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3036	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1969		3037
1970	sub db_put($$;$) {	3038	cf::cede_to_tick;
1971	if (@_ >= 3) {
1972	$DB->{$_[0]}{$_[1]} = $_[2];
1973	} else {
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978
1979	cf::global->attach (
1980	prio => 10000,
1981	on_cleanup => sub {
1982	db_sync;
1983	},	3039	}
1984	);
1985	}
1986		3040
1987	#############################################################################	3041	while (my ($face, $info) = each %$faces) {
1988	# the server's main()	3042	next unless $info->{smooth};
		3043	my $idx = cf::face::find $face
		3044	or next;
		3045	if (my $smooth = cf::face::find $info->{smooth}) {
		3046	cf::face::set_smooth $idx, $smooth;
		3047	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3048	} else {
		3049	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3050	}
1989		3051
1990	sub cfg_load {	3052	cf::cede_to_tick;
		3053	}
		3054	}
		3055
		3056	{
		3057	my $anims = $facedata->{animinfo};
		3058
		3059	while (my ($anim, $info) = each %$anims) {
		3060	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3061	cf::cede_to_tick;
		3062	}
		3063
		3064	cf::anim::invalidate_all; # d'oh
		3065	}
		3066
		3067	{
		3068	# TODO: for gcfclient pleasure, we should give resources
		3069	# that gcfclient doesn't grok a >10000 face index.
		3070	my $res = $facedata->{resource};
		3071
		3072	my $soundconf = delete $res->{"res/sound.conf"};
		3073
		3074	while (my ($name, $info) = each %$res) {
		3075	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3076	my $data;
		3077
		3078	if ($info->{type} & 1) {
		3079	# prepend meta info
		3080
		3081	my $meta = $enc->encode ({
		3082	name => $name,
		3083	%{ $info->{meta} || {} },
		3084	});
		3085
		3086	$data = pack "(w/a*)*", $meta, $info->{data};
		3087	} else {
		3088	$data = $info->{data};
		3089	}
		3090
		3091	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3092	cf::face::set_type $idx, $info->{type};
		3093
		3094	cf::cede_to_tick;
		3095	}
		3096
		3097	if ($soundconf) {
		3098	$soundconf = $enc->decode (delete $soundconf->{data});
		3099
		3100	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3101	my $sound = $soundconf->{compat}[$_]
		3102	or next;
		3103
		3104	my $face = cf::face::find "sound/$sound->[1]";
		3105	cf::sound::set $sound->[0] => $face;
		3106	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3107	}
		3108
		3109	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3110	my $face = cf::face::find "sound/$v";
		3111	cf::sound::set $k => $face;
		3112	}
		3113	}
		3114	}
		3115
		3116	1
		3117	}
		3118
		3119	register_exticmd fx_want => sub {
		3120	my ($ns, $want) = @_;
		3121
		3122	while (my ($k, $v) = each %$want) {
		3123	$ns->fx_want ($k, $v);
		3124	}
		3125	};
		3126
		3127	sub reload_regions {
		3128	# HACK to clear player env face cache, we need some signal framework
		3129	# for this (global event?)
		3130	%ext::player_env::MUSIC_FACE_CACHE = ();
		3131
		3132	load_resource_file "$MAPDIR/regions"
		3133	or die "unable to load regions file\n";
		3134
		3135	for (cf::region::list) {
		3136	$_->{match} = qr/$_->{match}/
		3137	if exists $_->{match};
		3138	}
		3139	}
		3140
		3141	sub reload_facedata {
		3142	load_facedata "$DATADIR/facedata"
		3143	or die "unable to load facedata\n";
		3144	}
		3145
		3146	sub reload_archetypes {
		3147	load_resource_file "$DATADIR/archetypes"
		3148	or die "unable to load archetypes\n";
		3149	#d# NEED to laod twice to resolve forward references
		3150	# this really needs to be done in an extra post-pass
		3151	# (which needs to be synchronous, so solve it differently)
		3152	load_resource_file "$DATADIR/archetypes"
		3153	or die "unable to load archetypes\n";
		3154	}
		3155
		3156	sub reload_treasures {
		3157	load_resource_file "$DATADIR/treasures"
		3158	or die "unable to load treasurelists\n";
		3159	}
		3160
		3161	sub reload_resources {
		3162	warn "reloading resource files...\n";
		3163
		3164	reload_regions;
		3165	reload_facedata;
		3166	#reload_archetypes;#d#
		3167	reload_archetypes;
		3168	reload_treasures;
		3169
		3170	warn "finished reloading resource files\n";
		3171	}
		3172
		3173	sub init {
		3174	reload_resources;
		3175	}
		3176
		3177	sub reload_config {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	3178	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	3179	or return;
1993		3180
1994	local $/;	3181	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	3182	*CFG = YAML::Syck::Load <$fh>;
1996		3183
1997	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3184	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1998		3185
		3186	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3187	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3188
1999	if (exists $CFG{mlockall}) {	3189	if (exists $CFG{mlockall}) {
2000	eval {	3190	eval {
2001	$CFG{mlockall} ? &mlockall : &munlockall	3191	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2002	and die "WARNING: m(un)lockall failed: $!\n";	3192	and die "WARNING: m(un)lockall failed: $!\n";
2003	};	3193	};
2004	warn $@ if $@;	3194	warn $@ if $@;
2005	}	3195	}
2006	}	3196	}
2007		3197
2008	sub main {	3198	sub main {
2009	# we must not ever block the main coroutine	3199	# we must not ever block the main coroutine
2010	local $Coro::idle = sub {	3200	local $Coro::idle = sub {
2011	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2012	(Coro::unblock_sub {	3202	(async {
		3203	$Coro::current->{desc} = "IDLE BUG HANDLER";
2013	Event::one_event;	3204	Event::one_event;
2014	})->();	3205	})->prio (Coro::PRIO_MAX);
2015	};	3206	};
2016		3207
2017	cfg_load;	3208	reload_config;
2018	db_load;	3209	db_init;
2019	load_extensions;	3210	load_extensions;
		3211
		3212	$TICK_WATCHER->start;
2020	Event::loop;	3213	Event::loop;
2021	}	3214	}
2022		3215
2023	#############################################################################	3216	#############################################################################
2024	# initialisation	3217	# initialisation and cleanup
2025		3218
		3219	# install some emergency cleanup handlers
		3220	BEGIN {
		3221	for my $signal (qw(INT HUP TERM)) {
		3222	Event->signal (
		3223	reentrant => 0,
		3224	data => WF_AUTOCANCEL,
		3225	signal => $signal,
		3226	prio => 0,
		3227	cb => sub {
		3228	cf::cleanup "SIG$signal";
		3229	},
		3230	);
		3231	}
		3232	}
		3233
		3234	sub write_runtime {
		3235	my $runtime = "$LOCALDIR/runtime";
		3236
		3237	# first touch the runtime file to show we are still running:
		3238	# the fsync below can take a very very long time.
		3239
		3240	IO::AIO::aio_utime $runtime, undef, undef;
		3241
		3242	my $guard = cf::lock_acquire "write_runtime";
		3243
		3244	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3245	or return;
		3246
		3247	my $value = $cf::RUNTIME + 90 + 10;
		3248	# 10 is the runtime save interval, for a monotonic clock
		3249	# 60 allows for the watchdog to kill the server.
		3250
		3251	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3252	and return;
		3253
		3254	# always fsync - this file is important
		3255	aio_fsync $fh
		3256	and return;
		3257
		3258	# touch it again to show we are up-to-date
		3259	aio_utime $fh, undef, undef;
		3260
		3261	close $fh
		3262	or return;
		3263
		3264	aio_rename "$runtime~", $runtime
		3265	and return;
		3266
		3267	warn "runtime file written.\n";
		3268
		3269	1
		3270	}
		3271
		3272	sub emergency_save() {
		3273	my $freeze_guard = cf::freeze_mainloop;
		3274
		3275	warn "enter emergency perl save\n";
		3276
		3277	cf::sync_job {
		3278	# use a peculiar iteration method to avoid tripping on perl
		3279	# refcount bugs in for. also avoids problems with players
		3280	# and maps saved/destroyed asynchronously.
		3281	warn "begin emergency player save\n";
		3282	for my $login (keys %cf::PLAYER) {
		3283	my $pl = $cf::PLAYER{$login} or next;
		3284	$pl->valid or next;
		3285	$pl->save;
		3286	}
		3287	warn "end emergency player save\n";
		3288
		3289	warn "begin emergency map save\n";
		3290	for my $path (keys %cf::MAP) {
		3291	my $map = $cf::MAP{$path} or next;
		3292	$map->valid or next;
		3293	$map->save;
		3294	}
		3295	warn "end emergency map save\n";
		3296
		3297	warn "begin emergency database checkpoint\n";
		3298	BDB::db_env_txn_checkpoint $DB_ENV;
		3299	warn "end emergency database checkpoint\n";
		3300	};
		3301
		3302	warn "leave emergency perl save\n";
		3303	}
		3304
		3305	sub post_cleanup {
		3306	my ($make_core) = @_;
		3307
		3308	warn Carp::longmess "post_cleanup backtrace"
		3309	if $make_core;
		3310	}
		3311
2026	sub reload() {	3312	sub do_reload_perl() {
2027	# can/must only be called in main	3313	# can/must only be called in main
2028	if ($Coro::current != $Coro::main) {	3314	if ($Coro::current != $Coro::main) {
2029	warn "can only reload from main coroutine\n";	3315	warn "can only reload from main coroutine";
2030	return;	3316	return;
2031	}	3317	}
2032		3318
2033	warn "reloading...";	3319	warn "reloading...";
2034		3320
2035	local $FREEZE = 1;	3321	warn "entering sync_job";
		3322
		3323	cf::sync_job {
		3324	cf::write_runtime; # external watchdog should not bark
2036	cf::emergency_save;	3325	cf::emergency_save;
		3326	cf::write_runtime; # external watchdog should not bark
2037		3327
2038	eval {	3328	warn "syncing database to disk";
		3329	BDB::db_env_txn_checkpoint $DB_ENV;
		3330
2039	# if anything goes wrong in here, we should simply crash as we already saved	3331	# if anything goes wrong in here, we should simply crash as we already saved
2040		3332
2041	# cancel all watchers	3333	warn "cancelling all WF_AUTOCANCEL watchers";
2042	for (Event::all_watchers) {	3334	for (Event::all_watchers) {
2043	$_->cancel if $_->data & WF_AUTOCANCEL;	3335	$_->cancel if $_->data & WF_AUTOCANCEL;
2044	}	3336	}
2045		3337
		3338	warn "flushing outstanding aio requests";
		3339	for (;;) {
		3340	BDB::flush;
		3341	IO::AIO::flush;
		3342	Coro::cede;
		3343	last unless IO::AIO::nreqs || BDB::nreqs;
		3344	warn "iterate...";
		3345	}
		3346
		3347	++$RELOAD;
		3348
2046	# cancel all extension coros	3349	warn "cancelling all extension coros";
2047	$_->cancel for values %EXT_CORO;	3350	$_->cancel for values %EXT_CORO;
2048	%EXT_CORO = ();	3351	%EXT_CORO = ();
2049		3352
2050	# unload all extensions	3353	warn "removing commands";
2051	for (@exts) {	3354	%COMMAND = ();
		3355
		3356	warn "removing ext/exti commands";
		3357	%EXTCMD = ();
		3358	%EXTICMD = ();
		3359
		3360	warn "unloading/nuking all extensions";
		3361	for my $pkg (@EXTS) {
2052	warn "unloading <$_>";	3362	warn "... unloading $pkg";
2053	unload_extension $_;	3363
		3364	if (my $cb = $pkg->can ("unload")) {
		3365	eval {
		3366	$cb->($pkg);
		3367	1
		3368	} or warn "$pkg unloaded, but with errors: $@";
2054	}	3369	}
2055		3370
		3371	warn "... nuking $pkg";
		3372	Symbol::delete_package $pkg;
		3373	}
		3374
2056	# unload all modules loaded from $LIBDIR	3375	warn "unloading all perl modules loaded from $LIBDIR";
2057	while (my ($k, $v) = each %INC) {	3376	while (my ($k, $v) = each %INC) {
2058	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3377	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2059		3378
2060	warn "removing <$k>";	3379	warn "... unloading $k";
2061	delete $INC{$k};	3380	delete $INC{$k};
2062		3381
2063	$k =~ s/\.pm$//;	3382	$k =~ s/\.pm$//;
2064	$k =~ s/\//::/g;	3383	$k =~ s/\//::/g;
2065		3384
…		…
2068	}	3387	}
2069		3388
2070	Symbol::delete_package $k;	3389	Symbol::delete_package $k;
2071	}	3390	}
2072		3391
2073	# sync database to disk
2074	cf::db_sync;
2075	IO::AIO::flush;
2076
2077	# get rid of safe::, as good as possible	3392	warn "getting rid of safe::, as good as possible";
2078	Symbol::delete_package "safe::$_"	3393	Symbol::delete_package "safe::$_"
2079	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3394	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2080		3395
2081	# remove register_script_function callbacks
2082	# TODO
2083
2084	# unload cf.pm "a bit"	3396	warn "unloading cf.pm \"a bit\"";
2085	delete $INC{"cf.pm"};	3397	delete $INC{"cf.pm"};
		3398	delete $INC{"cf/pod.pm"};
2086		3399
2087	# don't, removes xs symbols, too,	3400	# don't, removes xs symbols, too,
2088	# and global variables created in xs	3401	# and global variables created in xs
2089	#Symbol::delete_package __PACKAGE__;	3402	#Symbol::delete_package __PACKAGE__;
2090		3403
2091	# reload cf.pm	3404	warn "unload completed, starting to reload now";
		3405
2092	warn "reloading cf.pm";	3406	warn "reloading cf.pm";
2093	require cf;	3407	require cf;
2094	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3408	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2095		3409
2096	# load config and database again	3410	warn "loading config and database again";
2097	cf::cfg_load;	3411	cf::reload_config;
2098	cf::db_load;
2099		3412
2100	# load extensions
2101	warn "load extensions";	3413	warn "loading extensions";
2102	cf::load_extensions;	3414	cf::load_extensions;
2103		3415
2104	# reattach attachments to objects	3416	warn "reattaching attachments to objects/players";
2105	warn "reattach";	3417	_global_reattach; # objects, sockets
2106	_global_reattach;	3418	warn "reattaching attachments to maps";
2107	};	3419	reattach $_ for values %MAP;
		3420	warn "reattaching attachments to players";
		3421	reattach $_ for values %PLAYER;
2108		3422
2109	if ($@) {	3423	warn "leaving sync_job";
		3424
		3425	1
		3426	} or do {
2110	warn $@;	3427	warn $@;
2111	warn "error while reloading, exiting.";	3428	warn "error while reloading, exiting.";
2112	exit 1;	3429	exit 1;
2113	}	3430	};
2114		3431
2115	warn "reloaded successfully";	3432	warn "reloaded";
2116	};	3433	};
2117		3434
2118	#############################################################################	3435	our $RELOAD_WATCHER; # used only during reload
2119		3436
2120	unless ($LINK_MAP) {	3437	sub reload_perl() {
2121	$LINK_MAP = cf::map::new;	3438	# doing reload synchronously and two reloads happen back-to-back,
		3439	# coro crashes during coro_state_free->destroy here.
2122		3440
2123	$LINK_MAP->width (41);	3441	$RELOAD_WATCHER ||= Event->timer (
2124	$LINK_MAP->height (41);	3442	reentrant => 0,
2125	$LINK_MAP->alloc;
2126	$LINK_MAP->path ("{link}");
2127	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2128	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2129
2130	# dirty hack because... archetypes are not yet loaded
2131	Event->timer (
2132	after => 2,	3443	after => 0,
		3444	data => WF_AUTOCANCEL,
2133	cb => sub {	3445	cb => sub {
2134	$_[0]->w->cancel;	3446	do_reload_perl;
2135		3447	undef $RELOAD_WATCHER;
2136	# provide some exits "home"
2137	my $exit = cf::object::new "exit";
2138
2139	$exit->slaying ($EMERGENCY_POSITION->[0]);
2140	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2141	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2142
2143	$LINK_MAP->insert ($exit->clone, 19, 19);
2144	$LINK_MAP->insert ($exit->clone, 19, 20);
2145	$LINK_MAP->insert ($exit->clone, 19, 21);
2146	$LINK_MAP->insert ($exit->clone, 20, 19);
2147	$LINK_MAP->insert ($exit->clone, 20, 21);
2148	$LINK_MAP->insert ($exit->clone, 21, 19);
2149	$LINK_MAP->insert ($exit->clone, 21, 20);
2150	$LINK_MAP->insert ($exit->clone, 21, 21);
2151
2152	$exit->destroy;
2153	});	3448	},
2154		3449	);
2155	$LINK_MAP->{deny_save} = 1;
2156	$LINK_MAP->{deny_reset} = 1;
2157
2158	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2159	}	3450	}
2160
2161	register "<global>", __PACKAGE__;
2162		3451
2163	register_command "reload" => sub {	3452	register_command "reload" => sub {
2164	my ($who, $arg) = @_;	3453	my ($who, $arg) = @_;
2165		3454
2166	if ($who->flag (FLAG_WIZ)) {	3455	if ($who->flag (FLAG_WIZ)) {
2167	$who->message ("start of reload.");
2168	reload;
2169	$who->message ("end of reload.");	3456	$who->message ("reloading server.");
		3457	async {
		3458	$Coro::current->{desc} = "perl_reload";
		3459	reload_perl;
		3460	};
2170	}	3461	}
2171	};	3462	};
2172		3463
2173	unshift @INC, $LIBDIR;	3464	unshift @INC, $LIBDIR;
		3465
		3466	my $bug_warning = 0;
		3467
		3468	our @WAIT_FOR_TICK;
		3469	our @WAIT_FOR_TICK_BEGIN;
		3470
		3471	sub wait_for_tick {
		3472	return unless $TICK_WATCHER->is_active;
		3473	return if $Coro::current == $Coro::main;
		3474
		3475	my $signal = new Coro::Signal;
		3476	push @WAIT_FOR_TICK, $signal;
		3477	$signal->wait;
		3478	}
		3479
		3480	sub wait_for_tick_begin {
		3481	return unless $TICK_WATCHER->is_active;
		3482	return if $Coro::current == $Coro::main;
		3483
		3484	my $signal = new Coro::Signal;
		3485	push @WAIT_FOR_TICK_BEGIN, $signal;
		3486	$signal->wait;
		3487	}
2174		3488
2175	$TICK_WATCHER = Event->timer (	3489	$TICK_WATCHER = Event->timer (
2176	reentrant => 0,	3490	reentrant => 0,
		3491	parked => 1,
2177	prio => 0,	3492	prio => 0,
2178	at => $NEXT_TICK || $TICK,	3493	at => $NEXT_TICK || $TICK,
2179	data => WF_AUTOCANCEL,	3494	data => WF_AUTOCANCEL,
2180	cb => sub {	3495	cb => sub {
2181	unless ($FREEZE) {	3496	if ($Coro::current != $Coro::main) {
		3497	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3498	unless ++$bug_warning > 10;
		3499	return;
		3500	}
		3501
		3502	$NOW = $tick_start = Event::time;
		3503
2182	cf::server_tick; # one server iteration	3504	cf::server_tick; # one server iteration
		3505
2183	$RUNTIME += $TICK;	3506	$RUNTIME += $TICK;
2184	}
2185
2186	$NEXT_TICK += $TICK;	3507	$NEXT_TICK += $TICK;
2187		3508
		3509	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3510	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3511	Coro::async_pool {
		3512	$Coro::current->{desc} = "runtime saver";
		3513	write_runtime
		3514	or warn "ERROR: unable to write runtime file: $!";
		3515	};
		3516	}
		3517
		3518	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3519	$sig->send;
		3520	}
		3521	while (my $sig = shift @WAIT_FOR_TICK) {
		3522	$sig->send;
		3523	}
		3524
		3525	$NOW = Event::time;
		3526
2188	# if we are delayed by four ticks or more, skip them all	3527	# if we are delayed by four ticks or more, skip them all
2189	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3528	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2190		3529
2191	$TICK_WATCHER->at ($NEXT_TICK);	3530	$TICK_WATCHER->at ($NEXT_TICK);
2192	$TICK_WATCHER->start;	3531	$TICK_WATCHER->start;
		3532
		3533	$LOAD = ($NOW - $tick_start) / $TICK;
		3534	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3535
		3536	_post_tick;
2193	},	3537	},
2194	);	3538	);
2195		3539
		3540	{
		3541	BDB::min_parallel 8;
2196	IO::AIO::max_poll_time $TICK * 0.2;	3542	BDB::max_poll_time $TICK * 0.1;
2197		3543	$BDB_POLL_WATCHER = Event->io (
2198	Event->io (	3544	reentrant => 0,
2199	fd => IO::AIO::poll_fileno,	3545	fd => BDB::poll_fileno,
2200	poll => 'r',	3546	poll => 'r',
2201	prio => 5,	3547	prio => 0,
2202	data => WF_AUTOCANCEL,
2203	cb => \&IO::AIO::poll_cb,
2204	);
2205
2206	Event->timer (
2207	data => WF_AUTOCANCEL,	3548	data => WF_AUTOCANCEL,
		3549	cb => \&BDB::poll_cb,
		3550	);
		3551
		3552	BDB::set_sync_prepare {
		3553	my $status;
		3554	my $current = $Coro::current;
		3555	(
		3556	sub {
		3557	$status = $!;
		3558	$current->ready; undef $current;
		3559	},
		3560	sub {
		3561	Coro::schedule while defined $current;
		3562	$! = $status;
		3563	},
		3564	)
		3565	};
		3566
		3567	unless ($DB_ENV) {
		3568	$DB_ENV = BDB::db_env_create;
		3569	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3570	| BDB::LOG_AUTOREMOVE, 1);
		3571	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3572	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3573
		3574	cf::sync_job {
		3575	eval {
		3576	BDB::db_env_open
		3577	$DB_ENV,
		3578	$BDBDIR,
		3579	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3580	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3581	0666;
		3582
		3583	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3584	};
		3585
		3586	cf::cleanup "db_env_open(db): $@" if $@;
		3587	};
		3588	}
		3589
		3590	$BDB_DEADLOCK_WATCHER = Event->timer (
2208	after => 0,	3591	after => 3,
2209	interval => 10,	3592	interval => 1,
		3593	hard => 1,
		3594	prio => 0,
		3595	data => WF_AUTOCANCEL,
2210	cb => sub {	3596	cb => sub {
2211	(Coro::unblock_sub {	3597	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2212	write_runtime	3598	},
2213	or warn "ERROR: unable to write runtime file: $!";	3599	);
		3600	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3601	after => 11,
		3602	interval => 60,
		3603	hard => 1,
		3604	prio => 0,
		3605	data => WF_AUTOCANCEL,
		3606	cb => sub {
		3607	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3608	},
		3609	);
		3610	$BDB_TRICKLE_WATCHER = Event->timer (
		3611	after => 5,
		3612	interval => 10,
		3613	hard => 1,
		3614	prio => 0,
		3615	data => WF_AUTOCANCEL,
		3616	cb => sub {
		3617	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3618	},
		3619	);
		3620	}
		3621
		3622	{
		3623	IO::AIO::min_parallel 8;
		3624
		3625	undef $Coro::AIO::WATCHER;
		3626	IO::AIO::max_poll_time $TICK * 0.1;
		3627	$AIO_POLL_WATCHER = Event->io (
		3628	reentrant => 0,
		3629	data => WF_AUTOCANCEL,
		3630	fd => IO::AIO::poll_fileno,
		3631	poll => 'r',
		3632	prio => 0,
		3633	cb => \&IO::AIO::poll_cb,
		3634	);
		3635	}
		3636
		3637	my $_log_backtrace;
		3638
		3639	sub _log_backtrace {
		3640	my ($msg, @addr) = @_;
		3641
		3642	$msg =~ s/\n//;
		3643
		3644	# limit the # of concurrent backtraces
		3645	if ($_log_backtrace < 2) {
		3646	++$_log_backtrace;
		3647	async {
		3648	$Coro::current->{desc} = "abt $msg";
		3649
		3650	my @bt = fork_call {
		3651	@addr = map { sprintf "%x", $_ } @addr;
		3652	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3653	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3654	or die "addr2line: $!";
		3655
		3656	my @funcs;
		3657	my @res = <$fh>;
		3658	chomp for @res;
		3659	while (@res) {
		3660	my ($func, $line) = splice @res, 0, 2, ();
		3661	push @funcs, "[$func] $line";
		3662	}
		3663
		3664	@funcs
		3665	};
		3666
		3667	LOG llevInfo, "[ABT] $msg\n";
		3668	LOG llevInfo, "[ABT] $_\n" for @bt;
		3669	--$_log_backtrace;
2214	})->();	3670	};
		3671	} else {
		3672	LOG llevInfo, "[ABT] $msg\n";
		3673	LOG llevInfo, "[ABT] [suppressed]\n";
2215	},	3674	}
2216	);	3675	}
		3676
		3677	# load additional modules
		3678	use cf::pod;
2217		3679
2218	END { cf::emergency_save }	3680	END { cf::emergency_save }
2219		3681
2220	1	3682	1
2221		3683

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