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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.133 by root, Thu Jan 4 16:19:32 2007 UTC vs.
Revision 1.391 by root, Fri Oct 26 04:22:05 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.1 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	97	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	98
		99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
56		105
57	binmode STDOUT;	106	binmode STDOUT;
58	binmode STDERR;	107	binmode STDERR;
59		108
60	# read virtual server time, if available	109	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
65	}	114	}
66		115
67	mkdir cf::localdir;	116	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		118
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
76		122
77	#############################################################################	123	#############################################################################
78		124
79	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
80		126
…		…
87	=item $cf::RUNTIME	133	=item $cf::RUNTIME
88		134
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	136	every server tick.
91		137
92	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		141
94	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
96		146
97	=item $cf::NOW	147	=item $cf::NOW
98		148
99	The time of the last (current) server tick.	149	The time of the last (current) server tick.
100		150
101	=item $cf::TICK	151	=item $cf::TICK
102		152
103	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
104		164
105	=item %cf::CFG	165	=item %cf::CFG
106		166
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
109		181
110	=back	182	=back
111		183
112	=cut	184	=cut
113		185
114	BEGIN {	186	BEGIN {
115	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	188	my $msg = join "", @_;
117	utf8::encode $msg;
118		189
119	$msg .= "\n"	190	$msg .= "\n"
120	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
121		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
122	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
123	};	196	};
124	}	197	}
125		198
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		206
133	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	208	# within the Safe compartment.
135	for my $pkg (qw(	209	for my $pkg (qw(
136	cf::global cf::attachable	210	cf::global cf::attachable
…		…
145		219
146	$Event::DIED = sub {	220	$Event::DIED = sub {
147	warn "error in event callback: @_";	221	warn "error in event callback: @_";
148	};	222	};
149		223
150	my %ext_pkg;	224	#############################################################################
151	my @exts;
152	my @hook;
153		225
154	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
155		227
156	=over 4	228	=over 4
157		229
158	=cut	230	=item dumpval $ref
159		231
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
161		252
162	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
163		254
164	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
165		256
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
174		258
175	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
176		260
177	=cut	261	=cut
178		262
179	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		264
184	=item my $guard = cf::guard { BLOCK }	265	sub to_json ($) { $json_coder->encode ($_[0]) }
185		266	sub from_json ($) { $json_coder->decode ($_[0]) }
186	Run the given callback when the guard object gets destroyed (useful for
187	coroutine cancellations).
188
189	You can call C<< ->cancel >> on the guard object to stop the block from
190	being executed.
191
192	=cut
193
194	sub guard(&) {
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197
198	sub cf::guard::cancel {
199	${$_[0]} = sub { };
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}
205		267
206	=item cf::lock_wait $string	268	=item cf::lock_wait $string
207		269
208	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
209		271
210	=item my $lock = cf::lock_acquire $string	272	=item my $lock = cf::lock_acquire $string
211		273
212	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
213	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,
214	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
215	returned.	277	returned.
216		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
217	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
219		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
220	=cut	289	=cut
221		290
222	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
223		293
224	sub lock_wait($) {	294	sub lock_wait($) {
225	my ($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#
226		301
227	# wait for lock, if any	302	# wait for lock, if any
228	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
229	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
230	Coro::schedule;	305	Coro::schedule;
…		…
236		311
237	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
238	lock_wait $key;	313	lock_wait $key;
239		314
240	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
241		317
242	cf::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
243	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
244	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
245	}	322	}
246	}	323	}
247		324
248	=item cf::async { BLOCK }	325	sub lock_active($) {
249
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251	error instead of exiting the server in case of a problem.
252
253	=cut
254
255	sub async(&) {
256	my ($cb) = @_;	326	my ($key) = @_;
257		327
258	Coro::async {	328	! ! $LOCK{$key}
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}	329	}
263		330
264	sub freeze_mainloop {	331	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
266		333
267	my $guard = guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
268	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
269	$guard	338	$guard
270	}	339	}
271		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
		399	=item cf::async { BLOCK }
		400
		401	Currently the same as Coro::async_pool, meaning you cannot use
		402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		403	thing you are allowed to do is call C<prio> on it.
		404
		405	=cut
		406
		407	BEGIN { *async = \&Coro::async_pool }
		408
272	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
273		410
274	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)
275	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
276	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.
277		415
278	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
279	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
280	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
281	fast or be very important.	419	fast or be very important.
…		…
284		422
285	sub sync_job(&) {	423	sub sync_job(&) {
286	my ($job) = @_;	424	my ($job) = @_;
287		425
288	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
289	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
291		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
292	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
293	# (but this is cancel-safe)	435	# (but this is cancel-safe)
294	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
295		437
296	my $busy = 1;	438	my $busy = 1;
297	my @res;	439	my @res;
298		440
299	(Coro::async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
300	@res = eval { $job->() };	443	@res = eval { $job->() };
301	warn $@ if $@;	444	warn $@ if $@;
302	undef $busy;	445	undef $busy;
303	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
304		447
305	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
306	Coro::cede_notself;	450	Coro::cede_notself;
307	Event::one_event unless Coro::nready;	451	} else {
		452	Event::one_event;
308	}	453	}
		454	}
		455
		456	$time = Event::time - $time;
		457
		458	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		459	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		460
		461	$tick_start += $time; # do not account sync jobs to server load
309		462
310	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
311	} else {	464	} else {
312	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
313		466
314	$job->()	467	$job->()
315	}	468	}
316	}	469	}
317		470
318	=item $coro = cf::coro { BLOCK }	471	=item $coro = cf::async_ext { BLOCK }
319		472
320	Creates and returns a new coro. This coro is automcatially being canceled	473	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	474	extension calling this is being unloaded.
322		475
323	=cut	476	=cut
324		477
325	sub coro(&) {	478	sub async_ext(&) {
326	my $cb = shift;	479	my $cb = shift;
327		480
328	my $coro = &cf::async ($cb);	481	my $coro = &Coro::async ($cb);
329		482
330	$coro->on_destroy (sub {	483	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	484	delete $EXT_CORO{$coro+0};
332	});	485	});
333	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
334		487
335	$coro	488	$coro
336	}	489	}
337		490
338	sub write_runtime {	491	=item fork_call { }, $args
339	my $runtime = cf::localdir . "/runtime";
340		492
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	493	Executes the given code block with the given arguments in a seperate
342	or return;	494	process, returning the results. Everything must be serialisable with
		495	Coro::Storable. May, of course, block. Note that the executed sub may
		496	never block itself or use any form of Event handling.
343		497
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	498	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		499
348	aio_fsync $fh	500	sub fork_call(&@) {
349	and return;	501	my ($cb, @args) = @_;
350		502
351	close $fh	503	# we seemingly have to make a local copy of the whole thing,
352	or return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
353		506
354	aio_rename "$runtime~", $runtime	507	my @res = Coro::Util::fork_eval {
355	and return;	508	reset_signals;
		509	&$cb
		510	}, @args;
356		511
		512	wantarray ? @res : $res[-1]
		513	}
		514
		515	=item $value = cf::db_get $family => $key
		516
		517	Returns a single value from the environment database.
		518
		519	=item cf::db_put $family => $key => $value
		520
		521	Stores the given C<$value> in the family. It can currently store binary
		522	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		523
		524	=item $db = cf::db_table "name"
		525
		526	Create and/or open a new database table. The string must not be "db" and must be unique
		527	within each server.
		528
		529	=cut
		530
		531	sub db_table($) {
		532	my ($name) = @_;
		533	my $db = BDB::db_create $DB_ENV;
		534
		535	eval {
		536	$db->set_flags (BDB::CHKSUM);
		537
		538	utf8::encode $name;
		539	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		540	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		541	cf::cleanup "db_open(db): $!" if $!;
		542	};
		543	cf::cleanup "db_open(db): $@" if $@;
		544
		545	$db
		546	}
		547
		548	our $DB;
		549
		550	sub db_init {
		551	cf::sync_job {
		552	$DB ||= db_table "db";
		553	};
		554	}
		555
		556	sub db_get($$) {
		557	my $key = "$_[0]/$_[1]";
		558
		559	cf::sync_job {
		560	BDB::db_get $DB, undef, $key, my $data;
		561
		562	$! ? ()
		563	: $data
357	1	564	}
		565	}
		566
		567	sub db_put($$$) {
		568	BDB::dbreq_pri 4;
		569	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		570	}
		571
		572	=item cf::cache $id => [$paths...], $processversion => $process
		573
		574	Generic caching function that returns the value of the resource $id,
		575	caching and regenerating as required.
		576
		577	This function can block.
		578
		579	=cut
		580
		581	sub cache {
		582	my ($id, $src, $processversion, $process) = @_;
		583
		584	my $meta =
		585	join "\x00",
		586	$processversion,
		587	map {
		588	aio_stat $_
		589	and Carp::croak "$_: $!";
		590
		591	($_, (stat _)[7,9])
		592	} @$src;
		593
		594	my $dbmeta = db_get cache => "$id/meta";
		595	if ($dbmeta ne $meta) {
		596	# changed, we may need to process
		597
		598	my @data;
		599	my $md5;
		600
		601	for (0 .. $#$src) {
		602	0 <= aio_load $src->[$_], $data[$_]
		603	or Carp::croak "$src->[$_]: $!";
		604	}
		605
		606	# if processing is expensive, check
		607	# checksum first
		608	if (1) {
		609	$md5 =
		610	join "\x00",
		611	$processversion,
		612	map {
		613	cf::cede_to_tick;
		614	($src->[$_], Digest::MD5::md5_hex $data[$_])
		615	} 0.. $#$src;
		616
		617
		618	my $dbmd5 = db_get cache => "$id/md5";
		619	if ($dbmd5 eq $md5) {
		620	db_put cache => "$id/meta", $meta;
		621
		622	return db_get cache => "$id/data";
		623	}
		624	}
		625
		626	my $t1 = Time::HiRes::time;
		627	my $data = $process->(\@data);
		628	my $t2 = Time::HiRes::time;
		629
		630	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		631
		632	db_put cache => "$id/data", $data;
		633	db_put cache => "$id/md5" , $md5;
		634	db_put cache => "$id/meta", $meta;
		635
		636	return $data;
		637	}
		638
		639	db_get cache => "$id/data"
		640	}
		641
		642	=item cf::datalog type => key => value, ...
		643
		644	Log a datalog packet of the given type with the given key-value pairs.
		645
		646	=cut
		647
		648	sub datalog($@) {
		649	my ($type, %kv) = @_;
		650	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
358	}	651	}
359		652
360	=back	653	=back
361		654
362	=cut	655	=cut
363
364	#############################################################################
365
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483		656
484	#############################################################################	657	#############################################################################
485		658
486	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
487		660
…		…
489	attach callbacks/event handlers (a collection of which is called an "attachment")	662	attach callbacks/event handlers (a collection of which is called an "attachment")
490	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
491		664
492	In the following description, CLASS can be any of C<global>, C<object>	665	In the following description, CLASS can be any of C<global>, C<object>
493	C<player>, C<client> or C<map> (i.e. the attachable objects in	666	C<player>, C<client> or C<map> (i.e. the attachable objects in
494	crossfire+).	667	Crossfire TRT).
495		668
496	=over 4	669	=over 4
497		670
498	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
499		672
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	787	our @CB_MAP = ();
615		788
616	my %attachment;	789	my %attachment;
617		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
618	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
620		799
621	use sort 'stable';	800	use sort 'stable';
622		801
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
657		836
658	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		841
663	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	843	my $pkg = shift @arg;
665		844
666	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
695	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
696	}	875	}
697		876
698	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
699	} else {	878	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
701	}	880	}
702		881
703	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
704	}	883	}
705		884
…		…
707	if (ref $_[0]) {	886	if (ref $_[0]) {
708	_object_attach @_;	887	_object_attach @_;
709	} else {	888	} else {
710	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
711	}	890	}
		891	_recalc_want;
712	};	892	};
713		893
714	# all those should be optimised	894	# all those should be optimised
715	sub cf::attachable::detach {	895	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
720	reattach ($obj);	900	reattach ($obj);
721	} else {	901	} else {
722	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
723	}	903	}
		904	_recalc_want;
724	};	905	};
725		906
726	sub cf::attachable::attached {	907	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
728		909
…		…
743	";	924	";
744	die if $@;	925	die if $@;
745	}	926	}
746		927
747	our $override;	928	our $override;
748	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	929	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
749		930
750	sub override {	931	sub override {
751	$override = 1;	932	$override = 1;
752	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
753	}	934	}
754		935
755	sub do_invoke {	936	sub do_invoke {
756	my $event = shift;	937	my $event = shift;
757	my $callbacks = shift;	938	my $callbacks = shift;
758		939
759	@invoke_results = ();	940	@INVOKE_RESULTS = ();
760		941
761	local $override;	942	local $override;
762		943
763	for (@$callbacks) {	944	for (@$callbacks) {
764	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
781		962
782	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
783		964
784	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	965	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
785	removed in future versions), and there is no public API to access override	966	removed in future versions), and there is no public API to access override
786	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
787		968
788	=back	969	=back
789		970
790	=cut	971	=cut
791		972
792	#############################################################################	973	#############################################################################
793	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
794		1017
795	sub reattach {	1018	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		1023
799	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
800		1025
801	@$registry = ();	1026	@$registry = ();
802		1027
…		…
843	sub object_freezer_save {	1068	sub object_freezer_save {
844	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
845		1070
846	sync_job {	1071	sync_job {
847	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
848	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
849	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
850		1076
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	1081	close $fh;
856		1082
857	if (@$objs) {	1083	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1084	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	1089	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
865	}	1091	}
866	} else {	1092	} else {
867	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
873	}	1099	}
874	} else {	1100	} else {
875	aio_unlink $filename;	1101	aio_unlink $filename;
876	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
877	}	1103	}
878	}	1104	};
879	}	1105	}
880		1106
881	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
882	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
883		1109
…		…
895	or return;	1121	or return;
896		1122
897	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
898	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
899	or return;	1125	or return;
		1126
900	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
901	}	1129	}
902		1130
		1131	utf8::decode (my $decname = $filename);
903	warn sprintf "loading %s (%d)\n",	1132	warn sprintf "loading %s (%d,%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1133	$decname, length $data, scalar @{$av || []};
		1134
905	return ($data, $av);	1135	($data, $av)
906	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
907		1143
908	#############################################################################	1144	#############################################################################
909	# command handling &c	1145	# command handling &c
910		1146
911	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1161	}
926		1162
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1164
929	Register a callbackf ro execution when the client sends an extcmd packet.	1165	Register a callback for execution when the client sends an (synchronous)
		1166	extcmd packet. Ext commands will be processed in the order they are
		1167	received by the server, like other user commands. The first argument is
		1168	the logged-in player. Ext commands can only be processed after a player
		1169	has logged in successfully.
930		1170
931	If the callback returns something, it is sent back as if reply was being	1171	If the callback returns something, it is sent back as if reply was being
932	called.	1172	called.
933		1173
		1174	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1175
		1176	Register a callback for execution when the client sends an (asynchronous)
		1177	exticmd packet. Exti commands are processed by the server as soon as they
		1178	are received, i.e. out of order w.r.t. other commands. The first argument
		1179	is a client socket. Exti commands can be received anytime, even before
		1180	log-in.
		1181
		1182	If the callback returns something, it is sent back as if reply was being
		1183	called.
		1184
934	=cut	1185	=cut
935		1186
936	sub register_extcmd {	1187	sub register_extcmd {
937	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
938		1189
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
943	}	1197	}
944		1198
945	cf::player->attach (	1199	cf::player->attach (
946	on_command => sub {	1200	on_command => sub {
947	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
956	cf::override;	1210	cf::override;
957	},	1211	},
958	on_extcmd => sub {	1212	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
960		1214
961	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1216
963	if (ref $msg) {	1217	if (ref $msg) {
		1218	my ($type, $reply, @payload) =
		1219	"ARRAY" eq ref $msg
		1220	? @$msg
		1221	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1222
		1223	my @reply;
		1224
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
966	$pl->ext_reply ($msg->{msgid}, %reply);
967	}
968	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
969	} else {	1232	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
971	}	1234	}
972		1235
973	cf::override;	1236	cf::override;
974	},	1237	},
975	);	1238	);
976		1239
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	1240	sub load_extensions {
		1241	cf::sync_job {
		1242	my %todo;
		1243
		1244	for my $path (<$LIBDIR/*.ext>) {
		1245	next unless -r $path;
		1246
		1247	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1248	my $base = $1;
		1249	my $pkg = $1;
		1250	$pkg =~ s/[^[:word:]]/_/g;
		1251	$pkg = "ext::$pkg";
		1252
		1253	open my $fh, "<:utf8", $path
		1254	or die "$path: $!";
		1255
		1256	my $source = do { local $/; <$fh> };
		1257
		1258	my %ext = (
		1259	path => $path,
		1260	base => $base,
		1261	pkg => $pkg,
		1262	);
		1263
		1264	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1265	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1266
		1267	$ext{source} =
		1268	"package $pkg; use strict; use utf8;\n"
		1269	. "#line 1 \"$path\"\n{\n"
		1270	. $source
		1271	. "\n};\n1";
		1272
		1273	$todo{$base} = \%ext;
		1274	}
		1275
		1276	my %done;
		1277	while (%todo) {
		1278	my $progress;
		1279
		1280	while (my ($k, $v) = each %todo) {
		1281	for (split /,\s*/, $v->{meta}{depends}) {
		1282	goto skip
		1283	unless exists $done{$_};
		1284	}
		1285
		1286	warn "... loading '$k' into '$v->{pkg}'\n";
		1287
		1288	unless (eval $v->{source}) {
		1289	my $msg = $@ ? "$v->{path}: $@\n"
		1290	: "$v->{base}: extension inactive.\n";
		1291
		1292	if (exists $v->{meta}{mandatory}) {
		1293	warn $msg;
		1294	warn "mandatory extension failed to load, exiting.\n";
		1295	exit 1;
		1296	}
		1297
		1298	warn $msg;
		1299	}
		1300
		1301	$done{$k} = delete $todo{$k};
		1302	push @EXTS, $v->{pkg};
		1303	$progress = 1;
		1304	}
		1305
		1306	skip:
		1307	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1308	unless $progress;
		1309	}
		1310	};
		1311	}
		1312
		1313	#############################################################################
		1314
		1315	=back
		1316
		1317	=head2 CORE EXTENSIONS
		1318
		1319	Functions and methods that extend core crossfire objects.
		1320
		1321	=cut
		1322
		1323	package cf::player;
		1324
		1325	use Coro::AIO;
		1326
		1327	=head3 cf::player
		1328
		1329	=over 4
		1330
		1331	=item cf::player::num_playing
		1332
		1333	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1334
		1335	=cut
		1336
		1337	sub num_playing {
		1338	scalar grep
		1339	$_->ob->map
		1340	&& !$_->hidden
		1341	&& !$_->ob->flag (cf::FLAG_WIZ),
		1342	cf::player::list
		1343	}
		1344
		1345	=item cf::player::find $login
		1346
		1347	Returns the given player object, loading it if necessary (might block).
		1348
		1349	=cut
		1350
		1351	sub playerdir($) {
		1352	"$PLAYERDIR/"
		1353	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1354	}
		1355
		1356	sub path($) {
		1357	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1358
		1359	(playerdir $login) . "/playerdata"
		1360	}
		1361
		1362	sub find_active($) {
		1363	$cf::PLAYER{$_[0]}
		1364	and $cf::PLAYER{$_[0]}->active
		1365	and $cf::PLAYER{$_[0]}
		1366	}
		1367
		1368	sub exists($) {
		1369	my ($login) = @_;
		1370
		1371	$cf::PLAYER{$login}
		1372	or cf::sync_job { !aio_stat path $login }
		1373	}
		1374
		1375	sub find($) {
		1376	return $cf::PLAYER{$_[0]} || do {
		1377	my $login = $_[0];
		1378
		1379	my $guard = cf::lock_acquire "user_find:$login";
		1380
		1381	$cf::PLAYER{$_[0]} || do {
		1382	# rename old playerfiles to new ones
		1383	#TODO: remove when no longer required
		1384	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1385	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1386	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1387	aio_unlink +(playerdir $login) . "/$login.pl";
		1388
		1389	my $f = new_from_file cf::object::thawer path $login
		1390	or return;
		1391
		1392	my $pl = cf::player::load_pl $f
		1393	or return;
		1394	local $cf::PLAYER_LOADING{$login} = $pl;
		1395	$f->resolve_delayed_derefs;
		1396	$cf::PLAYER{$login} = $pl
		1397	}
		1398	}
		1399	}
		1400
		1401	sub save($) {
		1402	my ($pl) = @_;
		1403
		1404	return if $pl->{deny_save};
		1405
		1406	my $path = path $pl;
		1407	my $guard = cf::lock_acquire "user_save:$path";
		1408
		1409	return if $pl->{deny_save};
		1410
		1411	aio_mkdir playerdir $pl, 0770;
		1412	$pl->{last_save} = $cf::RUNTIME;
		1413
		1414	$pl->save_pl ($path);
		1415	cf::cede_to_tick;
		1416	}
		1417
		1418	sub new($) {
		1419	my ($login) = @_;
		1420
		1421	my $self = create;
		1422
		1423	$self->ob->name ($login);
		1424	$self->{deny_save} = 1;
		1425
		1426	$cf::PLAYER{$login} = $self;
		1427
		1428	$self
		1429	}
		1430
		1431	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1432
		1433	=cut
		1434
		1435	sub send_msg {
		1436	my $ns = shift->ns
		1437	or return;
		1438	$ns->send_msg (@_);
		1439	}
		1440
		1441	=item $pl->quit_character
		1442
		1443	Nukes the player without looking back. If logged in, the connection will
		1444	be destroyed. May block for a long time.
		1445
		1446	=cut
		1447
		1448	sub quit_character {
		1449	my ($pl) = @_;
		1450
		1451	my $name = $pl->ob->name;
		1452
		1453	$pl->{deny_save} = 1;
		1454	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1455
		1456	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1457	$pl->deactivate;
		1458	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1459	$pl->ns->destroy if $pl->ns;
		1460
		1461	my $path = playerdir $pl;
		1462	my $temp = "$path~$cf::RUNTIME~deleting~";
		1463	aio_rename $path, $temp;
		1464	delete $cf::PLAYER{$pl->ob->name};
		1465	$pl->destroy;
		1466
		1467	my $prefix = qr<^~\Q$name\E/>;
		1468
		1469	# nuke player maps
		1470	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1471
		1472	IO::AIO::aio_rmtree $temp;
		1473	}
		1474
		1475	=item $pl->kick
		1476
		1477	Kicks a player out of the game. This destroys the connection.
		1478
		1479	=cut
		1480
		1481	sub kick {
		1482	my ($pl, $kicker) = @_;
		1483
		1484	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1485	$pl->killer ("kicked");
		1486	$pl->ns->destroy;
		1487	}
		1488
		1489	=item cf::player::list_logins
		1490
		1491	Returns am arrayref of all valid playernames in the system, can take a
		1492	while and may block, so not sync_job-capable, ever.
		1493
		1494	=cut
		1495
		1496	sub list_logins {
		1497	my $dirs = aio_readdir $PLAYERDIR
		1498	or return [];
		1499
		1500	my @logins;
		1501
		1502	for my $login (@$dirs) {
		1503	my $path = path $login;
		1504
		1505	# a .pst is a dead give-away for a valid player
		1506	unless (-e "$path.pst") {
		1507	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1508	aio_read $fh, 0, 512, my $buf, 0 or next;
		1509	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1510	}
		1511
		1512	utf8::decode $login;
		1513	push @logins, $login;
		1514	}
		1515
		1516	\@logins
		1517	}
		1518
		1519	=item $player->maps
		1520
		1521	Returns an arrayref of map paths that are private for this
		1522	player. May block.
		1523
		1524	=cut
		1525
		1526	sub maps($) {
		1527	my ($pl) = @_;
		1528
		1529	$pl = ref $pl ? $pl->ob->name : $pl;
		1530
		1531	my $files = aio_readdir playerdir $pl
		1532	or return;
		1533
		1534	my @paths;
		1535
		1536	for (@$files) {
		1537	utf8::decode $_;
		1538	next if /\.(?:pl|pst)$/;
		1539	next unless /^$PATH_SEP/o;
		1540
		1541	push @paths, cf::map::normalise "~$pl/$_";
		1542	}
		1543
		1544	\@paths
		1545	}
		1546
		1547	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1548
		1549	Expand crossfire pod fragments into protocol xml.
		1550
		1551	=cut
		1552
		1553	use re 'eval';
		1554
		1555	my $group;
		1556	my $interior; $interior = qr{
		1557	(?:
		1558	\ (.*?)\ (?{ $group = $^N })
		1559	| < (??{$interior}) >
		1560	)
		1561	}x;
		1562
		1563	sub expand_cfpod {
		1564	my ($self, $pod) = @_;
		1565
		1566	my $xml;
		1567
		1568	while () {
		1569	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?=[^<]) )+ )/xgcs) {
		1570	$group = $1;
		1571
		1572	$group =~ s/&/&amp;/g;
		1573	$group =~ s/</&lt;/g;
		1574
		1575	$xml .= $group;
		1576	} elsif ($pod =~ m%\G
		1577	([BCGHITU])
		1578	<
		1579	(?:
		1580	([^<>]*) (?{ $group = $^N })
		1581	| < $interior >
		1582	)
		1583	>
		1584	%gcsx
		1585	) {
		1586	my ($code, $data) = ($1, $group);
		1587
		1588	if ($code eq "B") {
		1589	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1590	} elsif ($code eq "I") {
		1591	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1592	} elsif ($code eq "U") {
		1593	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1594	} elsif ($code eq "C") {
		1595	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1596	} elsif ($code eq "T") {
		1597	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1598	} elsif ($code eq "G") {
		1599	my ($male, $female) = split /\|/, $data;
		1600	$data = $self->gender ? $female : $male;
		1601	$xml .= expand_cfpod ($self, $data);
		1602	} elsif ($code eq "H") {
		1603	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1604	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1605	"")
		1606	[$self->{hintmode}];
		1607	} else {
		1608	$xml .= "error processing '$code($data)' directive";
		1609	}
		1610	} else {
		1611	if ($pod =~ /\G(.+)/) {
		1612	warn "parse error while expanding $pod (at $1)";
		1613	}
		1614	last;
		1615	}
		1616	}
		1617
		1618	for ($xml) {
		1619	# create single paragraphs (very hackish)
		1620	s/(?<=\S)\n(?=\w)/ /g;
		1621
		1622	# compress some whitespace
		1623	s/\s+\n/\n/g; # ws line-ends
		1624	s/\n\n+/\n/g; # double lines
		1625	s/^\n+//; # beginning lines
		1626	s/\n+$//; # ending lines
		1627	}
		1628
		1629	$xml
		1630	}
		1631
		1632	sub hintmode {
		1633	$_[0]{hintmode} = $_[1] if @_ > 1;
		1634	$_[0]{hintmode}
		1635	}
		1636
		1637	=item $player->ext_reply ($msgid, @msg)
		1638
		1639	Sends an ext reply to the player.
		1640
		1641	=cut
		1642
		1643	sub ext_reply($$@) {
		1644	my ($self, $id, @msg) = @_;
		1645
		1646	$self->ns->ext_reply ($id, @msg)
		1647	}
		1648
		1649	=item $player->ext_msg ($type, @msg)
		1650
		1651	Sends an ext event to the client.
		1652
		1653	=cut
		1654
		1655	sub ext_msg($$@) {
		1656	my ($self, $type, @msg) = @_;
		1657
		1658	$self->ns->ext_msg ($type, @msg);
		1659	}
		1660
		1661	=head3 cf::region
		1662
		1663	=over 4
		1664
		1665	=cut
		1666
		1667	package cf::region;
		1668
		1669	=item cf::region::find_by_path $path
		1670
		1671	Tries to decuce the likely region for a map knowing only its path.
		1672
		1673	=cut
		1674
		1675	sub find_by_path($) {
984	my ($path) = @_;	1676	my ($path) = @_;
985		1677
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1678	my ($match, $specificity);
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991		1679
992	warn "loading '$path' into '$pkg'\n";	1680	for my $region (list) {
993		1681	if ($region->{match} && $path =~ $region->{match}) {
994	open my $fh, "<:utf8", $path	1682	($match, $specificity) = ($region, $region->specificity)
995	or die "$path: $!";	1683	if $region->specificity > $specificity;
996		1684	}
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @exts, $pkg;
1008	$ext_pkg{$base} = $pkg;
1009
1010	# no strict 'refs';
1011	# @{"$pkg\::ISA"} = ext::;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }	1685	}
1026		1686
1027	# remove commands	1687	$match
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}
1036	}
1037
1038	# remove extcmds
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}
1052
1053	sub load_extensions {
1054	for my $ext (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;
1056	eval {
1057	load_extension $ext;
1058	1
1059	} or warn "$ext not loaded: $@";
1060	}
1061	}
1062
1063	#############################################################################
1064	# load/save/clean perl data associated with a map
1065
1066	*cf::mapsupport::on_clean = sub {
1067	my ($map) = @_;
1068
1069	my $path = $map->tmpname;
1070	defined $path or return;
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}
1083
1084	# TODO: compatibility cruft, remove when no longer needed
1085	cf::player->attach (
1086	on_load => sub {
1087	my ($pl, $path) = @_;
1088
1089	for my $o (all_objects $pl->ob) {
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091	$o->set_ob_key_value ("_perl_data");
1092
1093	%$o = %{ Storable::thaw pack "H*", $value };
1094	}
1095	}
1096	},
1097	);
1098
1099	#############################################################################
1100
1101	=head2 CORE EXTENSIONS
1102
1103	Functions and methods that extend core crossfire objects.
1104
1105	=head3 cf::player
1106
1107	=over 4
1108
1109	=item cf::player::exists $login
1110
1111	Returns true when the given account exists.
1112
1113	=cut
1114
1115	sub cf::player::exists($) {
1116	cf::player::find $_[0]
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1118	}
1119
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)
1121
1122	Sends an ext reply to the player.
1123
1124	=cut
1125
1126	sub cf::player::ext_reply($$$%) {
1127	my ($self, $id, %msg) = @_;
1128
1129	$msg{msgid} = $id;
1130
1131	$self->send ("ext " . to_json \%msg);
1132	}	1688	}
1133		1689
1134	=back	1690	=back
1135
1136		1691
1137	=head3 cf::map	1692	=head3 cf::map
1138		1693
1139	=over 4	1694	=over 4
1140		1695
…		…
1143	package cf::map;	1698	package cf::map;
1144		1699
1145	use Fcntl;	1700	use Fcntl;
1146	use Coro::AIO;	1701	use Coro::AIO;
1147		1702
		1703	use overload
		1704	'""' => \&as_string,
		1705	fallback => 1;
		1706
1148	our $MAX_RESET = 3600;	1707	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1708	our $DEFAULT_RESET = 3000;
1150		1709
1151	sub generate_random_map {	1710	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1711	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1712	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1713	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1714	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1715	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1716	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1717	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1718	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1719	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1720	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1721	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1722	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1723	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1724	(cf::region::find $rmp->{region}), $rmp->{custom}
		1725	)
		1726	}
		1727
		1728	=item cf::map->register ($regex, $prio)
		1729
		1730	Register a handler for the map path matching the given regex at the
		1731	givne priority (higher is better, built-in handlers have priority 0, the
		1732	default).
		1733
		1734	=cut
		1735
		1736	sub register {
		1737	my (undef, $regex, $prio) = @_;
		1738	my $pkg = caller;
		1739
		1740	no strict;
		1741	push @{"$pkg\::ISA"}, __PACKAGE__;
		1742
		1743	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1744	}
		1745
		1746	# also paths starting with '/'
		1747	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1748
		1749	sub thawer_merge {
		1750	my ($self, $merge) = @_;
		1751
		1752	# we have to keep some variables in memory intact
		1753	local $self->{path};
		1754	local $self->{load_path};
		1755
		1756	$self->SUPER::thawer_merge ($merge);
		1757	}
		1758
		1759	sub normalise {
		1760	my ($path, $base) = @_;
		1761
		1762	$path = "$path"; # make sure its a string
		1763
		1764	$path =~ s/\.map$//;
		1765
		1766	# map plan:
		1767	#
		1768	# /! non-realised random map exit (special hack!)
		1769	# {... are special paths that are not being touched
		1770	# ?xxx/... are special absolute paths
		1771	# ?random/... random maps
		1772	# /... normal maps
		1773	# ~user/... per-player map of a specific user
		1774
		1775	$path =~ s/$PATH_SEP/\//go;
		1776
		1777	# treat it as relative path if it starts with
		1778	# something that looks reasonable
		1779	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1780	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1781
		1782	$base =~ s{[^/]+/?$}{};
		1783	$path = "$base/$path";
		1784	}
		1785
		1786	for ($path) {
		1787	redo if s{//}{/};
		1788	redo if s{/\.?/}{/};
		1789	redo if s{/[^/]+/\.\./}{/};
		1790	}
		1791
		1792	$path
		1793	}
		1794
		1795	sub new_from_path {
		1796	my (undef, $path, $base) = @_;
		1797
		1798	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1799
		1800	$path = normalise $path, $base;
		1801
		1802	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1803	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1804	my $self = bless cf::map::new, $pkg;
		1805	$self->{path} = $path; $self->path ($path);
		1806	$self->init; # pass $1 etc.
		1807	return $self;
		1808	}
		1809	}
		1810
		1811	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1812	()
		1813	}
		1814
		1815	sub init {
		1816	my ($self) = @_;
		1817
		1818	$self
		1819	}
		1820
		1821	sub as_string {
		1822	my ($self) = @_;
		1823
		1824	"$self->{path}"
		1825	}
		1826
		1827	# the displayed name, this is a one way mapping
		1828	sub visible_name {
		1829	&as_string
		1830	}
		1831
		1832	# the original (read-only) location
		1833	sub load_path {
		1834	my ($self) = @_;
		1835
		1836	"$MAPDIR/$self->{path}.map"
		1837	}
		1838
		1839	# the temporary/swap location
		1840	sub save_path {
		1841	my ($self) = @_;
		1842
		1843	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1844	"$TMPDIR/$path.map"
		1845	}
		1846
		1847	# the unique path, undef == no special unique path
		1848	sub uniq_path {
		1849	my ($self) = @_;
		1850
		1851	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1852	"$UNIQUEDIR/$path"
1168	}	1853	}
1169		1854
1170	# and all this just because we cannot iterate over	1855	# and all this just because we cannot iterate over
1171	# all maps in C++...	1856	# all maps in C++...
1172	sub change_all_map_light {	1857	sub change_all_map_light {
…		…
1174		1859
1175	$_->change_map_light ($change)	1860	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1861	for grep $_->outdoor, values %cf::MAP;
1177	}	1862	}
1178		1863
		1864	sub decay_objects {
		1865	my ($self) = @_;
		1866
		1867	return if $self->{deny_reset};
		1868
		1869	$self->do_decay_objects;
		1870	}
		1871
		1872	sub unlink_save {
		1873	my ($self) = @_;
		1874
		1875	utf8::encode (my $save = $self->save_path);
		1876	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1877	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1878	}
		1879
1179	sub try_load_header($) {	1880	sub load_header_from($) {
1180	my ($path) = @_;	1881	my ($self, $path) = @_;
1181		1882
1182	utf8::encode $path;	1883	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1884	my $f = new_from_file cf::object::thawer $path
1184	or return;	1885	or return;
1185		1886
1186	my $map = cf::map::new	1887	$self->_load_header ($f)
1187	or return;	1888	or return;
1188		1889
1189	$map->load_header ($path)	1890	local $MAP_LOADING{$self->{path}} = $self;
		1891	$f->resolve_delayed_derefs;
		1892
		1893	$self->{load_path} = $path;
		1894
		1895	1
		1896	}
		1897
		1898	sub load_header_orig {
		1899	my ($self) = @_;
		1900
		1901	$self->load_header_from ($self->load_path)
		1902	}
		1903
		1904	sub load_header_temp {
		1905	my ($self) = @_;
		1906
		1907	$self->load_header_from ($self->save_path)
		1908	}
		1909
		1910	sub prepare_temp {
		1911	my ($self) = @_;
		1912
		1913	$self->last_access ((delete $self->{last_access})
		1914	|| $cf::RUNTIME); #d#
		1915	# safety
		1916	$self->{instantiate_time} = $cf::RUNTIME
		1917	if $self->{instantiate_time} > $cf::RUNTIME;
		1918	}
		1919
		1920	sub prepare_orig {
		1921	my ($self) = @_;
		1922
		1923	$self->{load_original} = 1;
		1924	$self->{instantiate_time} = $cf::RUNTIME;
		1925	$self->last_access ($cf::RUNTIME);
		1926	$self->instantiate;
		1927	}
		1928
		1929	sub load_header {
		1930	my ($self) = @_;
		1931
		1932	if ($self->load_header_temp) {
		1933	$self->prepare_temp;
		1934	} else {
		1935	$self->load_header_orig
1190	or return;	1936	or return;
		1937	$self->prepare_orig;
		1938	}
1191		1939
1192	$map->{load_path} = $path;	1940	$self->{deny_reset} = 1
		1941	if $self->no_reset;
1193		1942
1194	$map	1943	$self->default_region (cf::region::find_by_path $self->{path})
		1944	unless $self->default_region;
		1945
		1946	1
1195	}	1947	}
1196		1948
1197	sub find;	1949	sub find;
1198	sub find {	1950	sub find {
1199	my ($path, $origin) = @_;	1951	my ($path, $origin) = @_;
1200		1952
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1953	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1954
		1955	cf::lock_wait "map_data:$path";#d#remove
1206	cf::lock_wait "map_find:$key";	1956	cf::lock_wait "map_find:$path";
1207		1957
1208	$cf::MAP{$key} || do {	1958	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1959	my $guard1 = cf::lock_acquire "map_find:$path";
		1960	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1210		1961
1211	# do it the slow way	1962	my $map = new_from_path cf::map $path
1212	my $map = try_load_header $path->save_path;
1213
1214	if ($map) {
1215	$map->last_access ((delete $map->{last_access})
1216	|| $cf::RUNTIME); #d#
1217	# safety
1218	$map->{instantiate_time} = $cf::RUNTIME
1219	if $map->{instantiate_time} > $cf::RUNTIME;
1220	} else {
1221	if (my $rmp = $path->random_map_params) {
1222	$map = generate_random_map $key, $rmp;
1223	} else {
1224	$map = try_load_header $path->load_path;
1225	}
1226
1227	$map or return;	1963	or return;
1228		1964
1229	$map->{load_original} = 1;
1230	$map->{instantiate_time} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232	$map->instantiate;
1233
1234	# per-player maps become, after loading, normal maps
1235	$map->per_player (0) if $path->{user_rel};
1236	}
1237
1238	$map->path ($key);
1239	$map->{path} = $path;
1240	$map->{last_save} = $cf::RUNTIME;	1965	$map->{last_save} = $cf::RUNTIME;
1241		1966
1242	if ($map->should_reset) {	1967	$map->load_header
		1968	or return;
		1969
		1970	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1971	# doing this can freeze the server in a sync job, obviously
		1972	#$cf::WAIT_FOR_TICK->wait;
		1973	undef $guard1;
		1974	undef $guard2;
1243	$map->reset;	1975	$map->reset;
1244	undef $guard;
1245	$map = find $path	1976	return find $path;
1246	or return;
1247	}	1977	}
1248		1978
1249	$cf::MAP{$key} = $map	1979	$cf::MAP{$path} = $map
1250	}	1980	}
1251	}	1981	}
		1982
		1983	sub pre_load { }
		1984	sub post_load { }
1252		1985
1253	sub load {	1986	sub load {
1254	my ($self) = @_;	1987	my ($self) = @_;
1255		1988
		1989	local $self->{deny_reset} = 1; # loading can take a long time
		1990
1256	my $path = $self->{path};	1991	my $path = $self->{path};
		1992
		1993	{
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1994	my $guard = cf::lock_acquire "map_data:$path";
1258		1995
		1996	return unless $self->valid;
1259	return if $self->in_memory != cf::MAP_SWAPPED;	1997	return unless $self->in_memory == cf::MAP_SWAPPED;
1260		1998
1261	$self->in_memory (cf::MAP_LOADING);	1999	$self->in_memory (cf::MAP_LOADING);
1262		2000
1263	$self->alloc;	2001	$self->alloc;
1264	$self->load_objects ($self->{load_path}, 1)	2002
		2003	$self->pre_load;
		2004	cf::cede_to_tick;
		2005
		2006	my $f = new_from_file cf::object::thawer $self->{load_path};
		2007	$f->skip_block;
		2008	$self->_load_objects ($f)
1265	or return;	2009	or return;
1266		2010
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2011	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1268	if delete $self->{load_original};	2012	if delete $self->{load_original};
1269		2013
1270	if (my $uniq = $path->uniq_path) {	2014	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	2015	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	2016	unless (aio_stat $uniq) {
		2017	if (my $f = new_from_file cf::object::thawer $uniq) {
1273	$self->clear_unique_items;	2018	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	2019	$self->_load_objects ($f);
		2020	$f->resolve_delayed_derefs;
		2021	}
1275	}	2022	}
1276	}	2023	}
1277		2024
		2025	$f->resolve_delayed_derefs;
		2026
		2027	cf::cede_to_tick;
1278	# now do the right thing for maps	2028	# now do the right thing for maps
1279	$self->link_multipart_objects;	2029	$self->link_multipart_objects;
1280
1281	if ($self->{path}->is_style_map) {
1282	$self->{deny_save} = 1;
1283	$self->{deny_reset} = 1;
1284	} else {
1285	$self->fix_auto_apply;
1286	$self->decay_objects;
1287	$self->update_buttons;
1288	$self->set_darkness_map;
1289	$self->difficulty ($self->estimate_difficulty)	2030	$self->difficulty ($self->estimate_difficulty)
1290	unless $self->difficulty;	2031	unless $self->difficulty;
		2032	cf::cede_to_tick;
		2033
		2034	unless ($self->{deny_activate}) {
		2035	$self->decay_objects;
		2036	$self->fix_auto_apply;
		2037	$self->update_buttons;
		2038	cf::cede_to_tick;
		2039	$self->set_darkness_map;
		2040	cf::cede_to_tick;
1291	$self->activate;	2041	$self->activate;
1292	}	2042	}
1293		2043
		2044	$self->{last_save} = $cf::RUNTIME;
		2045	$self->last_access ($cf::RUNTIME);
		2046
1294	$self->in_memory (cf::MAP_IN_MEMORY);	2047	$self->in_memory (cf::MAP_IN_MEMORY);
		2048	}
		2049
		2050	$self->post_load;
		2051	}
		2052
		2053	sub customise_for {
		2054	my ($self, $ob) = @_;
		2055
		2056	return find "~" . $ob->name . "/" . $self->{path}
		2057	if $self->per_player;
		2058
		2059	# return find "?party/" . $ob->name . "/" . $self->{path}
		2060	# if $self->per_party;
		2061
		2062	$self
		2063	}
		2064
		2065	# find and load all maps in the 3x3 area around a map
		2066	sub load_neighbours {
		2067	my ($map) = @_;
		2068
		2069	my @neigh; # diagonal neighbours
		2070
		2071	for (0 .. 3) {
		2072	my $neigh = $map->tile_path ($_)
		2073	or next;
		2074	$neigh = find $neigh, $map
		2075	or next;
		2076	$neigh->load;
		2077
		2078	push @neigh,
		2079	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2080	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2081	}
		2082
		2083	for (grep defined $_->[0], @neigh) {
		2084	my ($path, $origin) = @$_;
		2085	my $neigh = find $path, $origin
		2086	or next;
		2087	$neigh->load;
		2088	}
1295	}	2089	}
1296		2090
1297	sub find_sync {	2091	sub find_sync {
1298	my ($path, $origin) = @_;	2092	my ($path, $origin) = @_;
1299		2093
1300	cf::sync_job { cf::map::find $path, $origin }	2094	cf::sync_job { find $path, $origin }
1301	}	2095	}
1302		2096
1303	sub do_load_sync {	2097	sub do_load_sync {
1304	my ($map) = @_;	2098	my ($map) = @_;
1305		2099
		2100	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2101	if $Coro::current == $Coro::main;
		2102
1306	cf::sync_job { $map->load };	2103	cf::sync_job { $map->load };
		2104	}
		2105
		2106	our %MAP_PREFETCH;
		2107	our $MAP_PREFETCHER = undef;
		2108
		2109	sub find_async {
		2110	my ($path, $origin, $load) = @_;
		2111
		2112	$path = normalise $path, $origin && $origin->{path};
		2113
		2114	if (my $map = $cf::MAP{$path}) {
		2115	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2116	}
		2117
		2118	$MAP_PREFETCH{$path} |= $load;
		2119
		2120	$MAP_PREFETCHER ||= cf::async {
		2121	$Coro::current->{desc} = "map prefetcher";
		2122
		2123	while (%MAP_PREFETCH) {
		2124	while (my ($k, $v) = each %MAP_PREFETCH) {
		2125	if (my $map = find $k) {
		2126	$map->load if $v;
		2127	}
		2128
		2129	delete $MAP_PREFETCH{$k};
		2130	}
		2131	}
		2132	undef $MAP_PREFETCHER;
		2133	};
		2134	$MAP_PREFETCHER->prio (6);
		2135
		2136	()
1307	}	2137	}
1308		2138
1309	sub save {	2139	sub save {
1310	my ($self) = @_;	2140	my ($self) = @_;
1311		2141
		2142	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2143
1312	$self->{last_save} = $cf::RUNTIME;	2144	$self->{last_save} = $cf::RUNTIME;
1313		2145
1314	return unless $self->dirty;	2146	return unless $self->dirty;
1315		2147
1316	my $save = $self->{path}->save_path; utf8::encode $save;	2148	my $save = $self->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2149	my $uniq = $self->uniq_path; utf8::encode $uniq;
1318		2150
1319	$self->{load_path} = $save;	2151	$self->{load_path} = $save;
1320		2152
1321	return if $self->{deny_save};	2153	return if $self->{deny_save};
1322		2154
1323	local $self->{last_access} = $self->last_access;#d#	2155	local $self->{last_access} = $self->last_access;#d#
1324		2156
		2157	cf::async {
		2158	$Coro::current->{desc} = "map player save";
		2159	$_->contr->save for $self->players;
		2160	};
		2161
1325	if ($uniq) {	2162	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2163	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);	2164	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {	2165	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2166	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}	2167	}
1331	}	2168	}
1332		2169
1333	sub swap_out {	2170	sub swap_out {
1334	my ($self) = @_;	2171	my ($self) = @_;
1335		2172
1336	# save first because save cedes	2173	# save first because save cedes
1337	$self->save;	2174	$self->save;
		2175
		2176	my $lock = cf::lock_acquire "map_data:$self->{path}";
1338		2177
1339	return if $self->players;	2178	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;	2179	return if $self->in_memory != cf::MAP_IN_MEMORY;
1341	return if $self->{deny_save};	2180	return if $self->{deny_save};
1342		2181
		2182	$self->in_memory (cf::MAP_SWAPPED);
		2183
		2184	$self->deactivate;
		2185	$_->clear_links_to ($self) for values %cf::MAP;
1343	$self->clear;	2186	$self->clear;
1344	$self->in_memory (cf::MAP_SWAPPED);
1345	}	2187	}
1346		2188
1347	sub reset_at {	2189	sub reset_at {
1348	my ($self) = @_;	2190	my ($self) = @_;
1349		2191
1350	# TODO: safety, remove and allow resettable per-player maps	2192	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};
1352	return 1e99 if $self->{deny_reset};	2193	return 1e99 if $self->{deny_reset};
1353		2194
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2195	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2196	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		2197
…		…
1361	my ($self) = @_;	2202	my ($self) = @_;
1362		2203
1363	$self->reset_at <= $cf::RUNTIME	2204	$self->reset_at <= $cf::RUNTIME
1364	}	2205	}
1365		2206
1366	sub unlink_save {
1367	my ($self) = @_;
1368
1369	utf8::encode (my $save = $self->{path}->save_path);
1370	aioreq_pri 3; IO::AIO::aio_unlink $save;
1371	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1372	}
1373
1374	sub rename {
1375	my ($self, $new_path) = @_;
1376
1377	$self->unlink_save;
1378
1379	delete $cf::MAP{$self->path};
1380	$self->{path} = new cf::path $new_path;
1381	$self->path ($self->{path}->as_string);
1382	$cf::MAP{$self->path} = $self;
1383
1384	$self->save;
1385	}
1386
1387	sub reset {	2207	sub reset {
1388	my ($self) = @_;	2208	my ($self) = @_;
1389		2209
		2210	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2211
1390	return if $self->players;	2212	return if $self->players;
1391	return if $self->{path}{user_rel};#d#
1392		2213
1393	warn "resetting map ", $self->path;#d#	2214	warn "resetting map ", $self->path;
		2215
		2216	$self->in_memory (cf::MAP_SWAPPED);
		2217
		2218	# need to save uniques path
		2219	unless ($self->{deny_save}) {
		2220	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2221
		2222	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2223	if $uniq;
		2224	}
1394		2225
1395	delete $cf::MAP{$self->path};	2226	delete $cf::MAP{$self->path};
1396		2227
		2228	$self->deactivate;
1397	$_->clear_links_to ($self) for values %cf::MAP;	2229	$_->clear_links_to ($self) for values %cf::MAP;
		2230	$self->clear;
1398		2231
1399	$self->unlink_save;	2232	$self->unlink_save;
1400	$self->destroy;	2233	$self->destroy;
1401	}	2234	}
1402		2235
1403	my $nuke_counter = "aaaa";	2236	my $nuke_counter = "aaaa";
1404		2237
1405	sub nuke {	2238	sub nuke {
1406	my ($self) = @_;	2239	my ($self) = @_;
1407		2240
		2241	{
		2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2243
		2244	delete $cf::MAP{$self->path};
		2245
		2246	$self->unlink_save;
		2247
		2248	bless $self, "cf::map";
		2249	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	2250	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	2251	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	2252	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2253
		2254	$cf::MAP{$self->path} = $self;
		2255	}
		2256
1411	$self->reset; # polite request, might not happen	2257	$self->reset; # polite request, might not happen
1412	}	2258	}
1413		2259
1414	sub customise_for {	2260	=item $maps = cf::map::tmp_maps
1415	my ($map, $ob) = @_;
1416		2261
1417	if ($map->per_player) {	2262	Returns an arrayref with all map paths of currently instantiated and saved
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2263	maps. May block.
		2264
		2265	=cut
		2266
		2267	sub tmp_maps() {
1419	}	2268	[
1420		2269	map {
1421	$map	2270	utf8::decode $_;
		2271	/\.map$/
		2272	? normalise $_
		2273	: ()
		2274	} @{ aio_readdir $TMPDIR or [] }
		2275	]
1422	}	2276	}
1423		2277
1424	sub emergency_save {	2278	=item $maps = cf::map::random_maps
1425	my $freeze_guard = cf::freeze_mainloop;
1426		2279
1427	warn "enter emergency map save\n";	2280	Returns an arrayref with all map paths of currently instantiated and saved
		2281	random maps. May block.
1428		2282
1429	cf::sync_job {	2283	=cut
1430	warn "begin emergency map save\n";
1431	$_->save for values %cf::MAP;
1432	};
1433		2284
1434	warn "end emergency map save\n";	2285	sub random_maps() {
		2286	[
		2287	map {
		2288	utf8::decode $_;
		2289	/\.map$/
		2290	? normalise "?random/$_"
		2291	: ()
		2292	} @{ aio_readdir $RANDOMDIR or [] }
		2293	]
		2294	}
		2295
		2296	=item cf::map::unique_maps
		2297
		2298	Returns an arrayref of paths of all shared maps that have
		2299	instantiated unique items. May block.
		2300
		2301	=cut
		2302
		2303	sub unique_maps() {
		2304	[
		2305	map {
		2306	utf8::decode $_;
		2307	/\.map$/
		2308	? normalise $_
		2309	: ()
		2310	} @{ aio_readdir $UNIQUEDIR or [] }
		2311	]
1435	}	2312	}
1436		2313
1437	package cf;	2314	package cf;
1438		2315
1439	=back	2316	=back
1440		2317
		2318	=head3 cf::object
		2319
		2320	=cut
		2321
		2322	package cf::object;
		2323
		2324	=over 4
		2325
		2326	=item $ob->inv_recursive
		2327
		2328	Returns the inventory of the object _and_ their inventories, recursively.
		2329
		2330	=cut
		2331
		2332	sub inv_recursive_;
		2333	sub inv_recursive_ {
		2334	map { $_, inv_recursive_ $_->inv } @_
		2335	}
		2336
		2337	sub inv_recursive {
		2338	inv_recursive_ inv $_[0]
		2339	}
		2340
		2341	=item $ref = $ob->ref
		2342
		2343	creates and returns a persistent reference to an objetc that can be stored as a string.
		2344
		2345	=item $ob = cf::object::deref ($refstring)
		2346
		2347	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2348	even if the object actually exists. May block.
		2349
		2350	=cut
		2351
		2352	sub deref {
		2353	my ($ref) = @_;
		2354
		2355	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2356	my ($uuid, $name) = ($1, $2);
		2357	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2358	or return;
		2359	$pl->ob->uuid eq $uuid
		2360	or return;
		2361
		2362	$pl->ob
		2363	} else {
		2364	warn "$ref: cannot resolve object reference\n";
		2365	undef
		2366	}
		2367	}
		2368
		2369	package cf;
		2370
		2371	=back
1441		2372
1442	=head3 cf::object::player	2373	=head3 cf::object::player
1443		2374
1444	=over 4	2375	=over 4
1445		2376
…		…
1459		2390
1460	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2391	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1461		2392
1462	if ($self->{record_replies}) {	2393	if ($self->{record_replies}) {
1463	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2394	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2395
1464	} else {	2396	} else {
		2397	my $pl = $self->contr;
		2398
		2399	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2400	my $dialog = $pl->{npc_dialog};
		2401	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2402
		2403	} else {
1465	$msg = $npc->name . " says: $msg" if $npc;	2404	$msg = $npc->name . " says: $msg" if $npc;
1466	$self->message ($msg, $flags);	2405	$self->message ($msg, $flags);
		2406	}
1467	}	2407	}
		2408	}
		2409
		2410	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2411
		2412	=cut
		2413
		2414	sub cf::object::send_msg {
		2415	my $pl = shift->contr
		2416	or return;
		2417	$pl->send_msg (@_);
1468	}	2418	}
1469		2419
1470	=item $player_object->may ("access")	2420	=item $player_object->may ("access")
1471		2421
1472	Returns wether the given player is authorized to access resource "access"	2422	Returns wether the given player is authorized to access resource "access"
…		…
1485		2435
1486	=item $player_object->enter_link	2436	=item $player_object->enter_link
1487		2437
1488	Freezes the player and moves him/her to a special map (C<{link}>).	2438	Freezes the player and moves him/her to a special map (C<{link}>).
1489		2439
1490	The player should be reaosnably safe there for short amounts of time. You	2440	The player should be reasonably safe there for short amounts of time. You
1491	I<MUST> call C<leave_link> as soon as possible, though.	2441	I<MUST> call C<leave_link> as soon as possible, though.
1492		2442
		2443	Will never block.
		2444
1493	=item $player_object->leave_link ($map, $x, $y)	2445	=item $player_object->leave_link ($map, $x, $y)
1494		2446
1495	Moves the player out of the specila link map onto the given map. If the	2447	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	2448	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	2449	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	2450	fails, to the emergency map position.
1499		2451
1500	Might block.	2452	Might block.
1501		2453
1502	=cut	2454	=cut
		2455
		2456	sub link_map {
		2457	unless ($LINK_MAP) {
		2458	$LINK_MAP = cf::map::find "{link}"
		2459	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2460	$LINK_MAP->load;
		2461	}
		2462
		2463	$LINK_MAP
		2464	}
1503		2465
1504	sub cf::object::player::enter_link {	2466	sub cf::object::player::enter_link {
1505	my ($self) = @_;	2467	my ($self) = @_;
1506		2468
1507	$self->deactivate_recursive;	2469	$self->deactivate_recursive;
1508		2470
1509	return if $self->map == $LINK_MAP;	2471	return if UNIVERSAL::isa $self->map, "ext::map_link";
1510		2472
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2473	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	2474	if $self->map && $self->map->{path} ne "{link}";
1513		2475
1514	$self->enter_map ($LINK_MAP, 20, 20);	2476	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1515	}	2477	}
1516		2478
1517	sub cf::object::player::leave_link {	2479	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	2480	my ($self, $map, $x, $y) = @_;
		2481
		2482	return unless $self->contr->active;
1519		2483
1520	my $link_pos = delete $self->{_link_pos};	2484	my $link_pos = delete $self->{_link_pos};
1521		2485
1522	unless ($map) {	2486	unless ($map) {
1523	# restore original map position	2487	# restore original map position
…		…
1537	# use -1 or undef as default coordinates, not 0, 0	2501	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	2502	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	2503	if $x <=0 && $y <= 0;
1540		2504
1541	$map->load;	2505	$map->load;
		2506	$map->load_neighbours;
1542		2507
		2508	return unless $self->contr->active;
1543	$self->activate_recursive;	2509	$self->activate_recursive;
		2510
		2511	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1544	$self->enter_map ($map, $x, $y);	2512	$self->enter_map ($map, $x, $y);
1545	}	2513	}
1546		2514
1547	cf::player->attach (	2515	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1548	on_logout => sub {
1549	my ($pl) = @_;
1550		2516
1551	# abort map switching before logout	2517	Moves the player to the given map-path and coordinates by first freezing
1552	if ($pl->ob->{_link_pos}) {	2518	her, loading and preparing them map, calling the provided $check callback
1553	cf::sync_job {	2519	that has to return the map if sucecssful, and then unfreezes the player on
1554	$pl->ob->leave_link	2520	the new (success) or old (failed) map position. In either case, $done will
1555	};	2521	be called at the end of this process.
1556	}
1557	},
1558	on_login => sub {
1559	my ($pl) = @_;
1560		2522
1561	# try to abort aborted map switching on player login :)
1562	# should happen only on crashes
1563	if ($pl->ob->{_link_pos}) {
1564	$pl->ob->enter_link;
1565	cf::async {
1566	# we need this sleep as the login has a concurrent enter_exit running
1567	# and this sleep increases chances of the player not ending up in scorn
1568	Coro::Timer::sleep 1;
1569	$pl->ob->leave_link;
1570	};
1571	}
1572	},
1573	);
1574
1575	=item $player_object->goto_map ($path, $x, $y)
1576
1577	=cut	2523	=cut
1578		2524
		2525	our $GOTOGEN;
		2526
1579	sub cf::object::player::goto_map {	2527	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	2528	my ($self, $path, $x, $y, $check, $done) = @_;
		2529
		2530	# do generation counting so two concurrent goto's will be executed in-order
		2531	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1581		2532
1582	$self->enter_link;	2533	$self->enter_link;
1583		2534
1584	(cf::async {	2535	(async {
1585	$path = new cf::path $path;	2536	$Coro::current->{desc} = "player::goto $path $x $y";
1586		2537
1587	my $map = cf::map::find $path->as_string;	2538	# *tag paths override both path and x|y
		2539	if ($path =~ /^\*(.*)$/) {
		2540	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2541	my $ob = $obs[rand @obs];
		2542
		2543	# see if we actually can go there
		2544	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2545	$ob = $obs[rand @obs];
		2546	} else {
		2547	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2548	}
		2549	# else put us there anyways for now #d#
		2550
		2551	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2552	} else {
		2553	($path, $x, $y) = (undef, undef, undef);
		2554	}
		2555	}
		2556
		2557	my $map = eval {
		2558	my $map = defined $path ? cf::map::find $path : undef;
		2559
		2560	if ($map) {
1588	$map = $map->customise_for ($self) if $map;	2561	$map = $map->customise_for ($self);
1589		2562	$map = $check->($map) if $check && $map;
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	2563	} else {
1591	# if $map;
1592
1593	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2564	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2565	}
1594		2566
		2567	$map
		2568	};
		2569
		2570	if ($@) {
		2571	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2572	LOG llevError | logBacktrace, Carp::longmess $@;
		2573	}
		2574
		2575	if ($gen == $self->{_goto_generation}) {
		2576	delete $self->{_goto_generation};
1595	$self->leave_link ($map, $x, $y);	2577	$self->leave_link ($map, $x, $y);
		2578	}
		2579
		2580	$done->() if $done;
1596	})->prio (1);	2581	})->prio (1);
1597	}	2582	}
1598		2583
1599	=item $player_object->enter_exit ($exit_object)	2584	=item $player_object->enter_exit ($exit_object)
1600		2585
…		…
1602		2587
1603	sub parse_random_map_params {	2588	sub parse_random_map_params {
1604	my ($spec) = @_;	2589	my ($spec) = @_;
1605		2590
1606	my $rmp = { # defaults	2591	my $rmp = { # defaults
1607	xsize => 10,	2592	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	2593	ysize => (cf::rndm 15, 40),
		2594	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2595	#layout => string,
1609	};	2596	};
1610		2597
1611	for (split /\n/, $spec) {	2598	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	2599	my ($k, $v) = split /\s+/, $_, 2;
1613		2600
…		…
1617	$rmp	2604	$rmp
1618	}	2605	}
1619		2606
1620	sub prepare_random_map {	2607	sub prepare_random_map {
1621	my ($exit) = @_;	2608	my ($exit) = @_;
		2609
		2610	my $guard = cf::lock_acquire "exit_prepare:$exit";
1622		2611
1623	# all this does is basically replace the /! path by	2612	# all this does is basically replace the /! path by
1624	# a new random map path (?random/...) with a seed	2613	# a new random map path (?random/...) with a seed
1625	# that depends on the exit object	2614	# that depends on the exit object
1626		2615
1627	my $rmp = parse_random_map_params $exit->msg;	2616	my $rmp = parse_random_map_params $exit->msg;
1628		2617
1629	if ($exit->map) {	2618	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	2619	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	2620	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	2621	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	2622	$rmp->{origin_y} = $exit->y;
1634	}	2623	}
1635		2624
1636	$rmp->{random_seed} ||= $exit->random_seed;	2625	$rmp->{random_seed} ||= $exit->random_seed;
1637		2626
1638	my $data = cf::to_json $rmp;	2627	my $data = cf::to_json $rmp;
1639	my $md5 = Digest::MD5::md5_hex $data;	2628	my $md5 = Digest::MD5::md5_hex $data;
		2629	my $meta = "$RANDOMDIR/$md5.meta";
1640		2630
1641	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2631	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1642	aio_write $fh, 0, (length $data), $data, 0;	2632	aio_write $fh, 0, (length $data), $data, 0;
		2633	undef $fh;
		2634	aio_rename "$meta~", $meta;
1643		2635
1644	$exit->slaying ("?random/$md5");	2636	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	2637	$exit->msg (undef);
1646	}	2638	}
1647	}	2639	}
…		…
1649	sub cf::object::player::enter_exit {	2641	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	2642	my ($self, $exit) = @_;
1651		2643
1652	return unless $self->type == cf::PLAYER;	2644	return unless $self->type == cf::PLAYER;
1653		2645
		2646	if ($exit->slaying eq "/!") {
		2647	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2648	# the problem is that $exit might not survive long enough
		2649	# so it needs to be done right now, right here
		2650	cf::sync_job { prepare_random_map $exit };
		2651	}
		2652
		2653	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2654	my $hp = $exit->stats->hp;
		2655	my $sp = $exit->stats->sp;
		2656
1654	$self->enter_link;	2657	$self->enter_link;
1655		2658
		2659	# if exit is damned, update players death & WoR home-position
		2660	$self->contr->savebed ($slaying, $hp, $sp)
		2661	if $exit->flag (FLAG_DAMNED);
		2662
1656	(cf::async {	2663	(async {
		2664	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2665
1657	$self->deactivate_recursive; # just to be sure	2666	$self->deactivate_recursive; # just to be sure
1658	unless (eval {	2667	unless (eval {
1659	prepare_random_map $exit	2668	$self->goto ($slaying, $hp, $sp);
1660	if $exit->slaying eq "/!";
1661
1662	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1663	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1664		2669
1665	1;	2670	1;
1666	}) {	2671	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	2672	$self->message ("Something went wrong deep within the crossfire server. "
1668	. "I'll try to bring you back to the map you were before. "	2673	. "I'll try to bring you back to the map you were before. "
1669	. "Please report this to the dungeon master",	2674	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	2675	cf::NDI_UNIQUE | cf::NDI_RED);
1671		2676
1672	warn "ERROR in enter_exit: $@";	2677	warn "ERROR in enter_exit: $@";
1673	$self->leave_link;	2678	$self->leave_link;
1674	}	2679	}
1675	})->prio (1);	2680	})->prio (1);
…		…
1688		2693
1689	sub cf::client::send_drawinfo {	2694	sub cf::client::send_drawinfo {
1690	my ($self, $text, $flags) = @_;	2695	my ($self, $text, $flags) = @_;
1691		2696
1692	utf8::encode $text;	2697	utf8::encode $text;
1693	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2698	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1694	}	2699	}
1695		2700
		2701	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2702
		2703	Send a drawinfo or msg packet to the client, formatting the msg for the
		2704	client if neccessary. C<$type> should be a string identifying the type of
		2705	the message, with C<log> being the default. If C<$color> is negative, suppress
		2706	the message unless the client supports the msg packet.
		2707
		2708	=cut
		2709
		2710	# non-persistent channels (usually the info channel)
		2711	our %CHANNEL = (
		2712	"c/identify" => {
		2713	id => "infobox",
		2714	title => "Identify",
		2715	reply => undef,
		2716	tooltip => "Items recently identified",
		2717	},
		2718	"c/examine" => {
		2719	id => "infobox",
		2720	title => "Examine",
		2721	reply => undef,
		2722	tooltip => "Signs and other items you examined",
		2723	},
		2724	"c/book" => {
		2725	id => "infobox",
		2726	title => "Book",
		2727	reply => undef,
		2728	tooltip => "The contents of a note or book",
		2729	},
		2730	"c/lookat" => {
		2731	id => "infobox",
		2732	title => "Look",
		2733	reply => undef,
		2734	tooltip => "What you saw there",
		2735	},
		2736	"c/who" => {
		2737	id => "infobox",
		2738	title => "Players",
		2739	reply => undef,
		2740	tooltip => "Shows players who are currently online",
		2741	},
		2742	"c/body" => {
		2743	id => "infobox",
		2744	title => "Body Parts",
		2745	reply => undef,
		2746	tooltip => "Shows which body parts you posess and are available",
		2747	},
		2748	"c/uptime" => {
		2749	id => "infobox",
		2750	title => "Uptime",
		2751	reply => undef,
		2752	tooltip => "How long the server has been running since last restart",
		2753	},
		2754	"c/mapinfo" => {
		2755	id => "infobox",
		2756	title => "Map Info",
		2757	reply => undef,
		2758	tooltip => "Information related to the maps",
		2759	},
		2760	);
		2761
		2762	sub cf::client::send_msg {
		2763	my ($self, $channel, $msg, $color, @extra) = @_;
		2764
		2765	$msg = $self->pl->expand_cfpod ($msg);
		2766
		2767	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2768
		2769	# check predefined channels, for the benefit of C
		2770	if ($CHANNEL{$channel}) {
		2771	$channel = $CHANNEL{$channel};
		2772
		2773	$self->ext_msg (channel_info => $channel)
		2774	if $self->can_msg;
		2775
		2776	$channel = $channel->{id};
		2777
		2778	} elsif (ref $channel) {
		2779	# send meta info to client, if not yet sent
		2780	unless (exists $self->{channel}{$channel->{id}}) {
		2781	$self->{channel}{$channel->{id}} = $channel;
		2782	$self->ext_msg (channel_info => $channel)
		2783	if $self->can_msg;
		2784	}
		2785
		2786	$channel = $channel->{id};
		2787	}
		2788
		2789	return unless @extra || length $msg;
		2790
		2791	if ($self->can_msg) {
		2792	# default colour, mask it out
		2793	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2794	if $color & cf::NDI_DEF;
		2795
		2796	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2797	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2798	} else {
		2799	if ($color >= 0) {
		2800	# replace some tags by gcfclient-compatible ones
		2801	for ($msg) {
		2802	1 while
		2803	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2804	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2805	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2806	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2807	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2808	}
		2809
		2810	$color &= cf::NDI_COLOR_MASK;
		2811
		2812	utf8::encode $msg;
		2813
		2814	if (0 && $msg =~ /\[/) {
		2815	# COMMAND/INFO
		2816	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2817	} else {
		2818	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2819	$self->send_packet ("drawinfo $color $msg")
		2820	}
		2821	}
		2822	}
		2823	}
		2824
		2825	=item $client->ext_msg ($type, @msg)
		2826
		2827	Sends an ext event to the client.
		2828
		2829	=cut
		2830
		2831	sub cf::client::ext_msg($$@) {
		2832	my ($self, $type, @msg) = @_;
		2833
		2834	if ($self->extcmd == 2) {
		2835	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2836	} elsif ($self->extcmd == 1) { # TODO: remove
		2837	push @msg, msgtype => "event_$type";
		2838	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2839	}
		2840	}
		2841
		2842	=item $client->ext_reply ($msgid, @msg)
		2843
		2844	Sends an ext reply to the client.
		2845
		2846	=cut
		2847
		2848	sub cf::client::ext_reply($$@) {
		2849	my ($self, $id, @msg) = @_;
		2850
		2851	if ($self->extcmd == 2) {
		2852	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2853	} elsif ($self->extcmd == 1) {
		2854	#TODO: version 1, remove
		2855	unshift @msg, msgtype => "reply", msgid => $id;
		2856	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2857	}
		2858	}
1696		2859
1697	=item $success = $client->query ($flags, "text", \&cb)	2860	=item $success = $client->query ($flags, "text", \&cb)
1698		2861
1699	Queues a query to the client, calling the given callback with	2862	Queues a query to the client, calling the given callback with
1700	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2863	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1701	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2864	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1702		2865
1703	Queries can fail, so check the return code. Or don't, as queries will become	2866	Queries can fail, so check the return code. Or don't, as queries will
1704	reliable at some point in the future.	2867	become reliable at some point in the future.
1705		2868
1706	=cut	2869	=cut
1707		2870
1708	sub cf::client::query {	2871	sub cf::client::query {
1709	my ($self, $flags, $text, $cb) = @_;	2872	my ($self, $flags, $text, $cb) = @_;
…		…
1717	utf8::encode $text;	2880	utf8::encode $text;
1718	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2881	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1719		2882
1720	$self->send_packet ($self->{query_queue}[0][0])	2883	$self->send_packet ($self->{query_queue}[0][0])
1721	if @{ $self->{query_queue} } == 1;	2884	if @{ $self->{query_queue} } == 1;
		2885
		2886	1
1722	}	2887	}
1723		2888
1724	cf::client->attach (	2889	cf::client->attach (
		2890	on_connect => sub {
		2891	my ($ns) = @_;
		2892
		2893	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2894	},
1725	on_reply => sub {	2895	on_reply => sub {
1726	my ($ns, $msg) = @_;	2896	my ($ns, $msg) = @_;
1727		2897
1728	# this weird shuffling is so that direct followup queries	2898	# this weird shuffling is so that direct followup queries
1729	# get handled first	2899	# get handled first
1730	my $queue = delete $ns->{query_queue}	2900	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	2901	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		2902
1733	(shift @$queue)->[1]->($msg);	2903	(shift @$queue)->[1]->($msg);
		2904	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		2905
1735	push @{ $ns->{query_queue} }, @$queue;	2906	push @{ $ns->{query_queue} }, @$queue;
1736		2907
1737	if (@{ $ns->{query_queue} } == @$queue) {	2908	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	2909	if (@$queue) {
…		…
1740	} else {	2911	} else {
1741	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2912	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1742	}	2913	}
1743	}	2914	}
1744	},	2915	},
		2916	on_exticmd => sub {
		2917	my ($ns, $buf) = @_;
		2918
		2919	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2920
		2921	if (ref $msg) {
		2922	my ($type, $reply, @payload) =
		2923	"ARRAY" eq ref $msg
		2924	? @$msg
		2925	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2926
		2927	my @reply;
		2928
		2929	if (my $cb = $EXTICMD{$type}) {
		2930	@reply = $cb->($ns, @payload);
		2931	}
		2932
		2933	$ns->ext_reply ($reply, @reply)
		2934	if $reply;
		2935
		2936	} else {
		2937	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2938	}
		2939
		2940	cf::override;
		2941	},
1745	);	2942	);
1746		2943
1747	=item $client->coro (\&cb)	2944	=item $client->async (\&cb)
1748		2945
1749	Create a new coroutine, running the specified callback. The coroutine will	2946	Create a new coroutine, running the specified callback. The coroutine will
1750	be automatically cancelled when the client gets destroyed (e.g. on logout,	2947	be automatically cancelled when the client gets destroyed (e.g. on logout,
1751	or loss of connection).	2948	or loss of connection).
1752		2949
1753	=cut	2950	=cut
1754		2951
1755	sub cf::client::coro {	2952	sub cf::client::async {
1756	my ($self, $cb) = @_;	2953	my ($self, $cb) = @_;
1757		2954
1758	my $coro = &cf::async ($cb);	2955	my $coro = &Coro::async ($cb);
1759		2956
1760	$coro->on_destroy (sub {	2957	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	2958	delete $self->{_coro}{$coro+0};
1762	});	2959	});
1763		2960
…		…
1790	our $safe = new Safe "safe";	2987	our $safe = new Safe "safe";
1791	our $safe_hole = new Safe::Hole;	2988	our $safe_hole = new Safe::Hole;
1792		2989
1793	$SIG{FPE} = 'IGNORE';	2990	$SIG{FPE} = 'IGNORE';
1794		2991
1795	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2992	$safe->permit_only (Opcode::opset qw(
		2993	:base_core :base_mem :base_orig :base_math
		2994	grepstart grepwhile mapstart mapwhile
		2995	sort time
		2996	));
1796		2997
1797	# here we export the classes and methods available to script code	2998	# here we export the classes and methods available to script code
1798		2999
1799	=pod	3000	=pod
1800		3001
1801	The following fucntions and emthods are available within a safe environment:	3002	The following functions and methods are available within a safe environment:
1802		3003
1803	cf::object contr pay_amount pay_player map	3004	cf::object
		3005	contr pay_amount pay_player map x y force_find force_add destroy
		3006	insert remove name archname title slaying race decrease_ob_nr
		3007
1804	cf::object::player player	3008	cf::object::player
1805	cf::player peaceful	3009	player
1806	cf::map trigger	3010
		3011	cf::player
		3012	peaceful
		3013
		3014	cf::map
		3015	trigger
1807		3016
1808	=cut	3017	=cut
1809		3018
1810	for (	3019	for (
1811	["cf::object" => qw(contr pay_amount pay_player map)],	3020	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3021	insert remove inv name archname title slaying race
		3022	decrease_ob_nr destroy)],
1812	["cf::object::player" => qw(player)],	3023	["cf::object::player" => qw(player)],
1813	["cf::player" => qw(peaceful)],	3024	["cf::player" => qw(peaceful)],
1814	["cf::map" => qw(trigger)],	3025	["cf::map" => qw(trigger)],
1815	) {	3026	) {
1816	no strict 'refs';	3027	no strict 'refs';
…		…
1887	=back	3098	=back
1888		3099
1889	=cut	3100	=cut
1890		3101
1891	#############################################################################	3102	#############################################################################
		3103	# the server's init and main functions
1892		3104
1893	=head2 EXTENSION DATABASE SUPPORT	3105	sub load_facedata($) {
		3106	my ($path) = @_;
1894		3107
1895	Crossfire maintains a very simple database for extension use. It can	3108	# HACK to clear player env face cache, we need some signal framework
1896	currently store anything that can be serialised using Storable, which	3109	# for this (global event?)
1897	excludes objects.	3110	%ext::player_env::MUSIC_FACE_CACHE = ();
1898		3111
1899	The parameter C<$family> should best start with the name of the extension	3112	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1900	using it, it should be unique.
1901		3113
1902	=over 4	3114	warn "loading facedata from $path\n";
1903		3115
1904	=item $hashref = cf::db_get $family	3116	my $facedata;
		3117	0 < aio_load $path, $facedata
		3118	or die "$path: $!";
1905		3119
1906	Return a hashref for use by the extension C<$family>, which can be	3120	$facedata = Coro::Storable::thaw $facedata;
1907	modified. After modifications, you have to call C<cf::db_dirty> or
1908	C<cf::db_sync>.
1909		3121
1910	=item $value = cf::db_get $family => $key	3122	$facedata->{version} == 2
		3123	or cf::cleanup "$path: version mismatch, cannot proceed.";
1911		3124
1912	Returns a single value from the database	3125	# patch in the exptable
1913		3126	$facedata->{resource}{"res/exp_table"} = {
1914	=item cf::db_put $family => $hashref	3127	type => FT_RSRC,
1915		3128	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1916	Stores the given family hashref into the database. Updates are delayed, if
1917	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_put $family => $key => $value
1920
1921	Stores the given C<$value> in the family hash. Updates are delayed, if you
1922	want the data to be synced to disk immediately, use C<cf::db_sync>.
1923
1924	=item cf::db_dirty
1925
1926	Marks the database as dirty, to be updated at a later time.
1927
1928	=item cf::db_sync
1929
1930	Immediately write the database to disk I<if it is dirty>.
1931
1932	=cut
1933
1934	our $DB;
1935
1936	{
1937	my $path = cf::localdir . "/database.pst";
1938
1939	sub db_load() {
1940	$DB = stat $path ? Storable::retrieve $path : { };
1941	}
1942
1943	my $pid;
1944
1945	sub db_save() {
1946	waitpid $pid, 0 if $pid;
1947	if (0 == ($pid = fork)) {
1948	$DB->{_meta}{version} = 1;
1949	Storable::nstore $DB, "$path~";
1950	rename "$path~", $path;
1951	cf::_exit 0 if defined $pid;
1952	}
1953	}
1954
1955	my $dirty;
1956
1957	sub db_sync() {
1958	db_save if $dirty;
1959	undef $dirty;
1960	}
1961
1962	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1963	db_sync;
1964	});	3129	};
		3130	cf::cede_to_tick;
1965		3131
1966	sub db_dirty() {
1967	$dirty = 1;
1968	$idle->start;
1969	}	3132	{
		3133	my $faces = $facedata->{faceinfo};
1970		3134
1971	sub db_get($;$) {	3135	while (my ($face, $info) = each %$faces) {
1972	@_ >= 2	3136	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1973	? $DB->{$_[0]}{$_[1]}	3137	cf::face::set_visibility $idx, $info->{visibility};
1974	: ($DB->{$_[0]} ||= { })	3138	cf::face::set_magicmap $idx, $info->{magicmap};
1975	}	3139	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3140	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1976		3141
1977	sub db_put($$;$) {	3142	cf::cede_to_tick;
1978	if (@_ >= 3) {
1979	$DB->{$_[0]}{$_[1]} = $_[2];
1980	} else {
1981	$DB->{$_[0]} = $_[1];
1982	}
1983	db_dirty;
1984	}
1985
1986	cf::global->attach (
1987	prio => 10000,
1988	on_cleanup => sub {
1989	db_sync;
1990	},	3143	}
1991	);
1992	}
1993		3144
1994	#############################################################################	3145	while (my ($face, $info) = each %$faces) {
1995	# the server's main()	3146	next unless $info->{smooth};
		3147	my $idx = cf::face::find $face
		3148	or next;
		3149	if (my $smooth = cf::face::find $info->{smooth}) {
		3150	cf::face::set_smooth $idx, $smooth;
		3151	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3152	} else {
		3153	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3154	}
1996		3155
1997	sub cfg_load {	3156	cf::cede_to_tick;
		3157	}
		3158	}
		3159
		3160	{
		3161	my $anims = $facedata->{animinfo};
		3162
		3163	while (my ($anim, $info) = each %$anims) {
		3164	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3165	cf::cede_to_tick;
		3166	}
		3167
		3168	cf::anim::invalidate_all; # d'oh
		3169	}
		3170
		3171	{
		3172	# TODO: for gcfclient pleasure, we should give resources
		3173	# that gcfclient doesn't grok a >10000 face index.
		3174	my $res = $facedata->{resource};
		3175
		3176	my $soundconf = delete $res->{"res/sound.conf"};
		3177
		3178	while (my ($name, $info) = each %$res) {
		3179	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3180	my $data;
		3181
		3182	if ($info->{type} & 1) {
		3183	# prepend meta info
		3184
		3185	my $meta = $enc->encode ({
		3186	name => $name,
		3187	%{ $info->{meta} || {} },
		3188	});
		3189
		3190	$data = pack "(w/a*)*", $meta, $info->{data};
		3191	} else {
		3192	$data = $info->{data};
		3193	}
		3194
		3195	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3196	cf::face::set_type $idx, $info->{type};
		3197
		3198	cf::cede_to_tick;
		3199	}
		3200
		3201	if ($soundconf) {
		3202	$soundconf = $enc->decode (delete $soundconf->{data});
		3203
		3204	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3205	my $sound = $soundconf->{compat}[$_]
		3206	or next;
		3207
		3208	my $face = cf::face::find "sound/$sound->[1]";
		3209	cf::sound::set $sound->[0] => $face;
		3210	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3211	}
		3212
		3213	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3214	my $face = cf::face::find "sound/$v";
		3215	cf::sound::set $k => $face;
		3216	}
		3217	}
		3218	}
		3219
		3220	1
		3221	}
		3222
		3223	register_exticmd fx_want => sub {
		3224	my ($ns, $want) = @_;
		3225
		3226	while (my ($k, $v) = each %$want) {
		3227	$ns->fx_want ($k, $v);
		3228	}
		3229	};
		3230
		3231	sub reload_regions {
		3232	# HACK to clear player env face cache, we need some signal framework
		3233	# for this (global event?)
		3234	%ext::player_env::MUSIC_FACE_CACHE = ();
		3235
		3236	load_resource_file "$MAPDIR/regions"
		3237	or die "unable to load regions file\n";
		3238
		3239	for (cf::region::list) {
		3240	$_->{match} = qr/$_->{match}/
		3241	if exists $_->{match};
		3242	}
		3243	}
		3244
		3245	sub reload_facedata {
		3246	load_facedata "$DATADIR/facedata"
		3247	or die "unable to load facedata\n";
		3248	}
		3249
		3250	sub reload_archetypes {
		3251	load_resource_file "$DATADIR/archetypes"
		3252	or die "unable to load archetypes\n";
		3253	#d# NEED to laod twice to resolve forward references
		3254	# this really needs to be done in an extra post-pass
		3255	# (which needs to be synchronous, so solve it differently)
		3256	load_resource_file "$DATADIR/archetypes"
		3257	or die "unable to load archetypes\n";
		3258	}
		3259
		3260	sub reload_treasures {
		3261	load_resource_file "$DATADIR/treasures"
		3262	or die "unable to load treasurelists\n";
		3263	}
		3264
		3265	sub reload_resources {
		3266	warn "reloading resource files...\n";
		3267
		3268	reload_regions;
		3269	reload_facedata;
		3270	#reload_archetypes;#d#
		3271	reload_archetypes;
		3272	reload_treasures;
		3273
		3274	warn "finished reloading resource files\n";
		3275	}
		3276
		3277	sub init {
		3278	reload_resources;
		3279	}
		3280
		3281	sub reload_config {
1998	open my $fh, "<:utf8", cf::confdir . "/config"	3282	open my $fh, "<:utf8", "$CONFDIR/config"
1999	or return;	3283	or return;
2000		3284
2001	local $/;	3285	local $/;
2002	*CFG = YAML::Syck::Load <$fh>;	3286	*CFG = YAML::Syck::Load <$fh>;
2003		3287
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3288	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2005		3289
		3290	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3291	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3292
2006	if (exists $CFG{mlockall}) {	3293	if (exists $CFG{mlockall}) {
2007	eval {	3294	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	3295	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	3296	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	3297	};
2011	warn $@ if $@;	3298	warn $@ if $@;
2012	}	3299	}
2013	}	3300	}
2014		3301
2015	sub main {	3302	sub main {
2016	# we must not ever block the main coroutine	3303	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	3304	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3305	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	3306	(async {
		3307	$Coro::current->{desc} = "IDLE BUG HANDLER";
2020	Event::one_event;	3308	Event::one_event;
2021	})->();	3309	})->prio (Coro::PRIO_MAX);
2022	};	3310	};
2023		3311
2024	cfg_load;	3312	reload_config;
2025	db_load;	3313	db_init;
2026	load_extensions;	3314	load_extensions;
		3315
		3316	$TICK_WATCHER->start;
2027	Event::loop;	3317	Event::loop;
2028	}	3318	}
2029		3319
2030	#############################################################################	3320	#############################################################################
2031	# initialisation	3321	# initialisation and cleanup
2032		3322
		3323	# install some emergency cleanup handlers
		3324	BEGIN {
		3325	for my $signal (qw(INT HUP TERM)) {
		3326	Event->signal (
		3327	reentrant => 0,
		3328	data => WF_AUTOCANCEL,
		3329	signal => $signal,
		3330	prio => 0,
		3331	cb => sub {
		3332	cf::cleanup "SIG$signal";
		3333	},
		3334	);
		3335	}
		3336	}
		3337
		3338	sub write_runtime {
		3339	my $runtime = "$LOCALDIR/runtime";
		3340
		3341	# first touch the runtime file to show we are still running:
		3342	# the fsync below can take a very very long time.
		3343
		3344	IO::AIO::aio_utime $runtime, undef, undef;
		3345
		3346	my $guard = cf::lock_acquire "write_runtime";
		3347
		3348	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3349	or return;
		3350
		3351	my $value = $cf::RUNTIME + 90 + 10;
		3352	# 10 is the runtime save interval, for a monotonic clock
		3353	# 60 allows for the watchdog to kill the server.
		3354
		3355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3356	and return;
		3357
		3358	# always fsync - this file is important
		3359	aio_fsync $fh
		3360	and return;
		3361
		3362	# touch it again to show we are up-to-date
		3363	aio_utime $fh, undef, undef;
		3364
		3365	close $fh
		3366	or return;
		3367
		3368	aio_rename "$runtime~", $runtime
		3369	and return;
		3370
		3371	warn "runtime file written.\n";
		3372
		3373	1
		3374	}
		3375
		3376	sub emergency_save() {
		3377	my $freeze_guard = cf::freeze_mainloop;
		3378
		3379	warn "enter emergency perl save\n";
		3380
		3381	cf::sync_job {
		3382	# use a peculiar iteration method to avoid tripping on perl
		3383	# refcount bugs in for. also avoids problems with players
		3384	# and maps saved/destroyed asynchronously.
		3385	warn "begin emergency player save\n";
		3386	for my $login (keys %cf::PLAYER) {
		3387	my $pl = $cf::PLAYER{$login} or next;
		3388	$pl->valid or next;
		3389	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3390	$pl->save;
		3391	}
		3392	warn "end emergency player save\n";
		3393
		3394	warn "begin emergency map save\n";
		3395	for my $path (keys %cf::MAP) {
		3396	my $map = $cf::MAP{$path} or next;
		3397	$map->valid or next;
		3398	$map->save;
		3399	}
		3400	warn "end emergency map save\n";
		3401
		3402	warn "begin emergency database checkpoint\n";
		3403	BDB::db_env_txn_checkpoint $DB_ENV;
		3404	warn "end emergency database checkpoint\n";
		3405	};
		3406
		3407	warn "leave emergency perl save\n";
		3408	}
		3409
		3410	sub post_cleanup {
		3411	my ($make_core) = @_;
		3412
		3413	warn Carp::longmess "post_cleanup backtrace"
		3414	if $make_core;
		3415	}
		3416
2033	sub reload() {	3417	sub do_reload_perl() {
2034	# can/must only be called in main	3418	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	3419	if ($Coro::current != $Coro::main) {
2036	warn "can only reload from main coroutine\n";	3420	warn "can only reload from main coroutine";
2037	return;	3421	return;
2038	}	3422	}
2039		3423
2040	warn "reloading...";	3424	warn "reloading...";
2041		3425
2042	my $guard = freeze_mainloop;	3426	warn "entering sync_job";
		3427
		3428	cf::sync_job {
		3429	cf::write_runtime; # external watchdog should not bark
2043	cf::emergency_save;	3430	cf::emergency_save;
		3431	cf::write_runtime; # external watchdog should not bark
2044		3432
2045	eval {	3433	warn "syncing database to disk";
		3434	BDB::db_env_txn_checkpoint $DB_ENV;
		3435
2046	# if anything goes wrong in here, we should simply crash as we already saved	3436	# if anything goes wrong in here, we should simply crash as we already saved
2047		3437
2048	# cancel all watchers	3438	warn "cancelling all WF_AUTOCANCEL watchers";
2049	for (Event::all_watchers) {	3439	for (Event::all_watchers) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;	3440	$_->cancel if $_->data & WF_AUTOCANCEL;
2051	}	3441	}
2052		3442
		3443	warn "flushing outstanding aio requests";
		3444	for (;;) {
		3445	BDB::flush;
		3446	IO::AIO::flush;
		3447	Coro::cede_notself;
		3448	last unless IO::AIO::nreqs || BDB::nreqs;
		3449	warn "iterate...";
		3450	}
		3451
		3452	++$RELOAD;
		3453
2053	# cancel all extension coros	3454	warn "cancelling all extension coros";
2054	$_->cancel for values %EXT_CORO;	3455	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();	3456	%EXT_CORO = ();
2056		3457
2057	# unload all extensions	3458	warn "removing commands";
2058	for (@exts) {	3459	%COMMAND = ();
		3460
		3461	warn "removing ext/exti commands";
		3462	%EXTCMD = ();
		3463	%EXTICMD = ();
		3464
		3465	warn "unloading/nuking all extensions";
		3466	for my $pkg (@EXTS) {
2059	warn "unloading <$_>";	3467	warn "... unloading $pkg";
2060	unload_extension $_;	3468
		3469	if (my $cb = $pkg->can ("unload")) {
		3470	eval {
		3471	$cb->($pkg);
		3472	1
		3473	} or warn "$pkg unloaded, but with errors: $@";
2061	}	3474	}
2062		3475
		3476	warn "... nuking $pkg";
		3477	Symbol::delete_package $pkg;
		3478	}
		3479
2063	# unload all modules loaded from $LIBDIR	3480	warn "unloading all perl modules loaded from $LIBDIR";
2064	while (my ($k, $v) = each %INC) {	3481	while (my ($k, $v) = each %INC) {
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3482	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066		3483
2067	warn "removing <$k>";	3484	warn "... unloading $k";
2068	delete $INC{$k};	3485	delete $INC{$k};
2069		3486
2070	$k =~ s/\.pm$//;	3487	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;	3488	$k =~ s/\//::/g;
2072		3489
…		…
2075	}	3492	}
2076		3493
2077	Symbol::delete_package $k;	3494	Symbol::delete_package $k;
2078	}	3495	}
2079		3496
2080	# sync database to disk
2081	cf::db_sync;
2082	IO::AIO::flush;
2083
2084	# get rid of safe::, as good as possible	3497	warn "getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	3498	Symbol::delete_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3499	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		3500
2088	# remove register_script_function callbacks
2089	# TODO
2090
2091	# unload cf.pm "a bit"	3501	warn "unloading cf.pm \"a bit\"";
2092	delete $INC{"cf.pm"};	3502	delete $INC{"cf.pm"};
		3503	delete $INC{"cf/pod.pm"};
2093		3504
2094	# don't, removes xs symbols, too,	3505	# don't, removes xs symbols, too,
2095	# and global variables created in xs	3506	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	3507	#Symbol::delete_package __PACKAGE__;
2097		3508
2098	# reload cf.pm	3509	warn "unload completed, starting to reload now";
		3510
2099	warn "reloading cf.pm";	3511	warn "reloading cf.pm";
2100	require cf;	3512	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3513	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2102		3514
2103	# load config and database again	3515	warn "loading config and database again";
2104	cf::cfg_load;	3516	cf::reload_config;
2105	cf::db_load;
2106		3517
2107	# load extensions
2108	warn "load extensions";	3518	warn "loading extensions";
2109	cf::load_extensions;	3519	cf::load_extensions;
2110		3520
2111	# reattach attachments to objects	3521	warn "reattaching attachments to objects/players";
2112	warn "reattach";	3522	_global_reattach; # objects, sockets
2113	_global_reattach;	3523	warn "reattaching attachments to maps";
2114	};	3524	reattach $_ for values %MAP;
		3525	warn "reattaching attachments to players";
		3526	reattach $_ for values %PLAYER;
2115		3527
2116	if ($@) {	3528	warn "leaving sync_job";
		3529
		3530	1
		3531	} or do {
2117	warn $@;	3532	warn $@;
2118	warn "error while reloading, exiting.";	3533	warn "error while reloading, exiting.";
2119	exit 1;	3534	exit 1;
2120	}	3535	};
2121		3536
2122	warn "reloaded successfully";	3537	warn "reloaded";
2123	};	3538	};
2124		3539
2125	#############################################################################	3540	our $RELOAD_WATCHER; # used only during reload
2126		3541
2127	unless ($LINK_MAP) {	3542	sub reload_perl() {
2128	$LINK_MAP = cf::map::new;	3543	# doing reload synchronously and two reloads happen back-to-back,
		3544	# coro crashes during coro_state_free->destroy here.
2129		3545
2130	$LINK_MAP->width (41);	3546	$RELOAD_WATCHER ||= Event->timer (
2131	$LINK_MAP->height (41);	3547	reentrant => 0,
2132	$LINK_MAP->alloc;
2133	$LINK_MAP->path ("{link}");
2134	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2135	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2136
2137	# dirty hack because... archetypes are not yet loaded
2138	Event->timer (
2139	after => 2,	3548	after => 0,
		3549	data => WF_AUTOCANCEL,
2140	cb => sub {	3550	cb => sub {
2141	$_[0]->w->cancel;	3551	do_reload_perl;
2142		3552	undef $RELOAD_WATCHER;
2143	# provide some exits "home"
2144	my $exit = cf::object::new "exit";
2145
2146	$exit->slaying ($EMERGENCY_POSITION->[0]);
2147	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2148	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2149
2150	$LINK_MAP->insert ($exit->clone, 19, 19);
2151	$LINK_MAP->insert ($exit->clone, 19, 20);
2152	$LINK_MAP->insert ($exit->clone, 19, 21);
2153	$LINK_MAP->insert ($exit->clone, 20, 19);
2154	$LINK_MAP->insert ($exit->clone, 20, 21);
2155	$LINK_MAP->insert ($exit->clone, 21, 19);
2156	$LINK_MAP->insert ($exit->clone, 21, 20);
2157	$LINK_MAP->insert ($exit->clone, 21, 21);
2158
2159	$exit->destroy;
2160	});	3553	},
2161		3554	);
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}	3555	}
2167
2168	register "<global>", __PACKAGE__;
2169		3556
2170	register_command "reload" => sub {	3557	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	3558	my ($who, $arg) = @_;
2172		3559
2173	if ($who->flag (FLAG_WIZ)) {	3560	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");
2175	reload;
2176	$who->message ("end of reload.");	3561	$who->message ("reloading server.");
		3562	async {
		3563	$Coro::current->{desc} = "perl_reload";
		3564	reload_perl;
		3565	};
2177	}	3566	}
2178	};	3567	};
2179		3568
2180	unshift @INC, $LIBDIR;	3569	unshift @INC, $LIBDIR;
		3570
		3571	my $bug_warning = 0;
		3572
		3573	our @WAIT_FOR_TICK;
		3574	our @WAIT_FOR_TICK_BEGIN;
		3575
		3576	sub wait_for_tick {
		3577	return unless $TICK_WATCHER->is_active;
		3578	return if $Coro::current == $Coro::main;
		3579
		3580	my $signal = new Coro::Signal;
		3581	push @WAIT_FOR_TICK, $signal;
		3582	$signal->wait;
		3583	}
		3584
		3585	sub wait_for_tick_begin {
		3586	return unless $TICK_WATCHER->is_active;
		3587	return if $Coro::current == $Coro::main;
		3588
		3589	my $signal = new Coro::Signal;
		3590	push @WAIT_FOR_TICK_BEGIN, $signal;
		3591	$signal->wait;
		3592	}
2181		3593
2182	$TICK_WATCHER = Event->timer (	3594	$TICK_WATCHER = Event->timer (
2183	reentrant => 0,	3595	reentrant => 0,
		3596	parked => 1,
2184	prio => 0,	3597	prio => 0,
2185	at => $NEXT_TICK || $TICK,	3598	at => $NEXT_TICK || $TICK,
2186	data => WF_AUTOCANCEL,	3599	data => WF_AUTOCANCEL,
2187	cb => sub {	3600	cb => sub {
		3601	if ($Coro::current != $Coro::main) {
		3602	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3603	unless ++$bug_warning > 10;
		3604	return;
		3605	}
		3606
		3607	$NOW = $tick_start = Event::time;
		3608
2188	cf::server_tick; # one server iteration	3609	cf::server_tick; # one server iteration
		3610
2189	$RUNTIME += $TICK;	3611	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;	3612	$NEXT_TICK += $TICK;
2191		3613
		3614	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3615	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3616	Coro::async_pool {
		3617	$Coro::current->{desc} = "runtime saver";
		3618	write_runtime
		3619	or warn "ERROR: unable to write runtime file: $!";
		3620	};
		3621	}
		3622
		3623	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3624	$sig->send;
		3625	}
		3626	while (my $sig = shift @WAIT_FOR_TICK) {
		3627	$sig->send;
		3628	}
		3629
		3630	$NOW = Event::time;
		3631
2192	# if we are delayed by four ticks or more, skip them all	3632	# if we are delayed by four ticks or more, skip them all
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3633	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2194		3634
2195	$TICK_WATCHER->at ($NEXT_TICK);	3635	$TICK_WATCHER->at ($NEXT_TICK);
2196	$TICK_WATCHER->start;	3636	$TICK_WATCHER->start;
		3637
		3638	$LOAD = ($NOW - $tick_start) / $TICK;
		3639	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3640
		3641	_post_tick;
2197	},	3642	},
2198	);	3643	);
2199		3644
		3645	{
		3646	BDB::min_parallel 8;
2200	IO::AIO::max_poll_time $TICK * 0.2;	3647	BDB::max_poll_time $TICK * 0.1;
2201		3648	$BDB_POLL_WATCHER = Event->io (
2202	Event->io (	3649	reentrant => 0,
2203	fd => IO::AIO::poll_fileno,	3650	fd => BDB::poll_fileno,
2204	poll => 'r',	3651	poll => 'r',
2205	prio => 5,	3652	prio => 0,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209
2210	Event->timer (
2211	data => WF_AUTOCANCEL,	3653	data => WF_AUTOCANCEL,
		3654	cb => \&BDB::poll_cb,
		3655	);
		3656
		3657	BDB::set_sync_prepare {
		3658	my $status;
		3659	my $current = $Coro::current;
		3660	(
		3661	sub {
		3662	$status = $!;
		3663	$current->ready; undef $current;
		3664	},
		3665	sub {
		3666	Coro::schedule while defined $current;
		3667	$! = $status;
		3668	},
		3669	)
		3670	};
		3671
		3672	unless ($DB_ENV) {
		3673	$DB_ENV = BDB::db_env_create;
		3674	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3675	| BDB::LOG_AUTOREMOVE, 1);
		3676	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3677	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3678
		3679	cf::sync_job {
		3680	eval {
		3681	BDB::db_env_open
		3682	$DB_ENV,
		3683	$BDBDIR,
		3684	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3685	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3686	0666;
		3687
		3688	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3689	};
		3690
		3691	cf::cleanup "db_env_open(db): $@" if $@;
		3692	};
		3693	}
		3694
		3695	$BDB_DEADLOCK_WATCHER = Event->timer (
2212	after => 0,	3696	after => 3,
2213	interval => 10,	3697	interval => 1,
		3698	hard => 1,
		3699	prio => 0,
		3700	data => WF_AUTOCANCEL,
2214	cb => sub {	3701	cb => sub {
2215	(Coro::unblock_sub {	3702	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2216	write_runtime	3703	},
2217	or warn "ERROR: unable to write runtime file: $!";	3704	);
		3705	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3706	after => 11,
		3707	interval => 60,
		3708	hard => 1,
		3709	prio => 0,
		3710	data => WF_AUTOCANCEL,
		3711	cb => sub {
		3712	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3713	},
		3714	);
		3715	$BDB_TRICKLE_WATCHER = Event->timer (
		3716	after => 5,
		3717	interval => 10,
		3718	hard => 1,
		3719	prio => 0,
		3720	data => WF_AUTOCANCEL,
		3721	cb => sub {
		3722	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3723	},
		3724	);
		3725	}
		3726
		3727	{
		3728	IO::AIO::min_parallel 8;
		3729
		3730	undef $Coro::AIO::WATCHER;
		3731	IO::AIO::max_poll_time $TICK * 0.1;
		3732	$AIO_POLL_WATCHER = Event->io (
		3733	reentrant => 0,
		3734	data => WF_AUTOCANCEL,
		3735	fd => IO::AIO::poll_fileno,
		3736	poll => 'r',
		3737	prio => 0,
		3738	cb => \&IO::AIO::poll_cb,
		3739	);
		3740	}
		3741
		3742	my $_log_backtrace;
		3743
		3744	sub _log_backtrace {
		3745	my ($msg, @addr) = @_;
		3746
		3747	$msg =~ s/\n//;
		3748
		3749	# limit the # of concurrent backtraces
		3750	if ($_log_backtrace < 2) {
		3751	++$_log_backtrace;
		3752	async {
		3753	$Coro::current->{desc} = "abt $msg";
		3754
		3755	my @bt = fork_call {
		3756	@addr = map { sprintf "%x", $_ } @addr;
		3757	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3758	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3759	or die "addr2line: $!";
		3760
		3761	my @funcs;
		3762	my @res = <$fh>;
		3763	chomp for @res;
		3764	while (@res) {
		3765	my ($func, $line) = splice @res, 0, 2, ();
		3766	push @funcs, "[$func] $line";
		3767	}
		3768
		3769	@funcs
		3770	};
		3771
		3772	LOG llevInfo, "[ABT] $msg\n";
		3773	LOG llevInfo, "[ABT] $_\n" for @bt;
		3774	--$_log_backtrace;
2218	})->();	3775	};
		3776	} else {
		3777	LOG llevInfo, "[ABT] $msg\n";
		3778	LOG llevInfo, "[ABT] [suppressed]\n";
2219	},	3779	}
2220	);	3780	}
		3781
		3782	# load additional modules
		3783	use cf::pod;
2221		3784
2222	END { cf::emergency_save }	3785	END { cf::emergency_save }
2223		3786
2224	1	3787	1
2225		3788

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