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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.154 by root, Tue Jan 9 15:36:19 2007 UTC vs.
Revision 1.390 by root, Thu Oct 25 09:01:24 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 ();
20	use Data::Dumper;	28	use Data::Dumper;
21	use Digest::MD5;	29	use Digest::MD5;
22	use Fcntl;	30	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		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
27	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
28		44
29	# 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?
30	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
31		47
32	$Coro::main->prio (Coro::PRIO_MAX); # 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
33		49
34	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		51
36	our %COMMAND = ();	52	our %COMMAND = ();
37	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
39		60
		61	our $RELOAD; # number of reloads so far
40	our @EVENT;	62	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		63
43	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(!)
44	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	80	our $NEXT_TICK;
46	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;
47		89
48	our %CFG;	90	our %CFG;
49		91
50	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	93	our $RUNTIME;
52		94
53	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";	98
57	our %EXT_CORO; # coroutines bound to extensions	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 $tick_start; # for load detecting purposes
58		105
59	binmode STDOUT;	106	binmode STDOUT;
60	binmode STDERR;	107	binmode STDERR;
61		108
62	# read virtual server time, if available	109	# read virtual server time, if available
63	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
64	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
65	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
66	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
67	}	114	}
68		115
69	mkdir cf::localdir;	116	mkdir $_
70	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
71	mkdir cf::localdir . "/" . cf::tmpdir;
72	mkdir cf::localdir . "/" . cf::uniquedir;
73	mkdir $RANDOM_MAPS;
74		118
75	# a special map that is always available
76	our $LINK_MAP;
77	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
78		122
79	#############################################################################	123	#############################################################################
80		124
81	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
82		126
…		…
89	=item $cf::RUNTIME	133	=item $cf::RUNTIME
90		134
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	136	every server tick.
93		137
94	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		141
96	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
98		146
99	=item $cf::NOW	147	=item $cf::NOW
100		148
101	The time of the last (current) server tick.	149	The time of the last (current) server tick.
102		150
103	=item $cf::TICK	151	=item $cf::TICK
104		152
105	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
106		164
107	=item %cf::CFG	165	=item %cf::CFG
108		166
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
111		181
112	=back	182	=back
113		183
114	=cut	184	=cut
115		185
116	BEGIN {	186	BEGIN {
117	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	188	my $msg = join "", @_;
119	utf8::encode $msg;
120		189
121	$msg .= "\n"	190	$msg .= "\n"
122	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123		194
124	LOG llevError, $msg;	195	LOG llevError, $msg;
125	};	196	};
126	}	197	}
127		198
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		206
135	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	208	# within the Safe compartment.
137	for my $pkg (qw(	209	for my $pkg (qw(
138	cf::global cf::attachable	210	cf::global cf::attachable
…		…
147		219
148	$Event::DIED = sub {	220	$Event::DIED = sub {
149	warn "error in event callback: @_";	221	warn "error in event callback: @_";
150	};	222	};
151		223
152	my %ext_pkg;	224	#############################################################################
153	my @exts;
154	my @hook;
155		225
156	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
157		227
158	=over 4	228	=over 4
159		229
…		…
178	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
179	$d	249	$d
180	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
181	}	251	}
182		252
183	use JSON::Syck (); # TODO# replace by JSON::PC once working
184
185	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
186		254
187	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
188		256
189	=cut
190
191	sub from_json($) {
192	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
193	JSON::Syck::Load $_[0]
194	}
195
196	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
197		258
198	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
199		260
200	=cut	261	=cut
201		262
202	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
203	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
204	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
205	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
206		267
207	=item cf::lock_wait $string	268	=item cf::lock_wait $string
208		269
209	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
210		271
…		…
213	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
214	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
216	returned.	277	returned.
217		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
218	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
220		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
221	=cut	289	=cut
222		290
223	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
224		293
225	sub lock_wait($) {	294	sub lock_wait($) {
226	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
227		301
228	# wait for lock, if any	302	# wait for lock, if any
229	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;	305	Coro::schedule;
…		…
237		311
238	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
239	lock_wait $key;	313	lock_wait $key;
240		314
241	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
242		317
243	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
244	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
246	}	322	}
247	}	323	}
248		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
249	sub freeze_mainloop {	331	sub freeze_mainloop {
250	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
251		333
252	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
253	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
254	$guard	338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
255	}	397	}
256		398
257	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
258		400
259	Currently the same as Coro::async_pool, meaning you cannot use	401	Currently the same as Coro::async_pool, meaning you cannot use
…		…
264		406
265	BEGIN { *async = \&Coro::async_pool }	407	BEGIN { *async = \&Coro::async_pool }
266		408
267	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
268		410
269	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)
270	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
271	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.
272		415
273	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
274	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
275	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
276	fast or be very important.	419	fast or be very important.
…		…
279		422
280	sub sync_job(&) {	423	sub sync_job(&) {
281	my ($job) = @_;	424	my ($job) = @_;
282		425
283	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
284	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
285	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
286		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
287	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
288	# (but this is cancel-safe)	435	# (but this is cancel-safe)
289	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
290		437
291	my $busy = 1;	438	my $busy = 1;
292	my @res;	439	my @res;
293		440
294	(async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
295	@res = eval { $job->() };	443	@res = eval { $job->() };
296	warn $@ if $@;	444	warn $@ if $@;
297	undef $busy;	445	undef $busy;
298	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
299		447
300	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
		450	Coro::cede_notself;
		451	} else {
301	Coro::cede or Event::one_event;	452	Event::one_event;
302	}	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
303		462
304	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
305	} else {	464	} else {
306	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
307		466
…		…
309	}	468	}
310	}	469	}
311		470
312	=item $coro = cf::async_ext { BLOCK }	471	=item $coro = cf::async_ext { BLOCK }
313		472
314	Like async, but this coro is automcatially being canceled when the	473	Like async, but this coro is automatically being canceled when the
315	extension calling this is being unloaded.	474	extension calling this is being unloaded.
316		475
317	=cut	476	=cut
318		477
319	sub async_ext(&) {	478	sub async_ext(&) {
…		…
327	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
328		487
329	$coro	488	$coro
330	}	489	}
331		490
332	sub write_runtime {	491	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		492
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	493	Executes the given code block with the given arguments in a seperate
336	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.
337		497
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	498	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		499
342	aio_fsync $fh	500	sub fork_call(&@) {
343	and return;	501	my ($cb, @args) = @_;
344		502
345	close $fh	503	# we seemingly have to make a local copy of the whole thing,
346	or return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
347		506
348	aio_rename "$runtime~", $runtime	507	my @res = Coro::Util::fork_eval {
349	and return;	508	reset_signals;
		509	&$cb
		510	}, @args;
350		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
351	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 });
352	}	651	}
353		652
354	=back	653	=back
355		654
356	=cut	655	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	# used to convert map paths into valid unix filenames by repalcing / by ∕
363	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
364
365	sub new {
366	my ($class, $path, $base) = @_;
367
368	$path = $path->as_string if ref $path;
369
370	my $self = bless { }, $class;
371
372	# {... are special paths that are not touched
373	# ?xxx/... are special absolute paths
374	# ?random/... random maps
375	# /! non-realised random map exit
376	# /... normal maps
377	# ~/... per-player maps without a specific player (DO NOT USE)
378	# ~user/... per-player map of a specific user
379
380	if ($path =~ /^{/) {
381	# fine as it is
382	} elsif ($path =~ s{^\?random/}{}) {
383	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
384	$self->{random} = cf::from_json $data;
385	} else {
386	if ($path =~ s{^~([^/]+)?}{}) {
387	$self->{user_rel} = 1;
388
389	if (defined $1) {
390	$self->{user} = $1;
391	} elsif ($base =~ m{^~([^/]+)/}) {
392	$self->{user} = $1;
393	} else {
394	warn "cannot resolve user-relative path without user <$path,$base>\n";
395	}
396	} elsif ($path =~ /^\//) {
397	# already absolute
398	} else {
399	$base =~ s{[^/]+/?$}{};
400	return $class->new ("$base/$path");
401	}
402
403	for ($path) {
404	redo if s{/\.?/}{/};
405	redo if s{/[^/]+/\.\./}{/};
406	}
407	}
408
409	$self->{path} = $path;
410
411	$self
412	}
413
414	# the name / primary key / in-game path
415	sub as_string {
416	my ($self) = @_;
417
418	$self->{user_rel} ? "~$self->{user}$self->{path}"
419	: $self->{random} ? "?random/$self->{path}"
420	: $self->{path}
421	}
422
423	# the displayed name, this is a one way mapping
424	sub visible_name {
425	my ($self) = @_;
426
427	# if (my $rmp = $self->{random}) {
428	# # todo: be more intelligent about this
429	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
430	# } else {
431	$self->as_string
432	# }
433	}
434
435	# escape the /'s in the path
436	sub _escaped_path {
437	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
438	$path
439	}
440
441	# the original (read-only) location
442	sub load_path {
443	my ($self) = @_;
444
445	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
446	}
447
448	# the temporary/swap location
449	sub save_path {
450	my ($self) = @_;
451
452	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
453	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
454	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
455	}
456
457	# the unique path, might be eq to save_path
458	sub uniq_path {
459	my ($self) = @_;
460
461	$self->{user_rel} || $self->{random}
462	? undef
463	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
464	}
465
466	# return random map parameters, or undef
467	sub random_map_params {
468	my ($self) = @_;
469
470	$self->{random}
471	}
472
473	# this is somewhat ugly, but style maps do need special treatment
474	sub is_style_map {
475	$_[0]{path} =~ m{^/styles/}
476	}
477
478	package cf;
479		656
480	#############################################################################	657	#############################################################################
481		658
482	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
483		660
…		…
485	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")
486	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
487		664
488	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>
489	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
490	crossfire+).	667	Crossfire TRT).
491		668
492	=over 4	669	=over 4
493		670
494	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
495		672
…		…
609	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
610	our @CB_MAP = ();	787	our @CB_MAP = ();
611		788
612	my %attachment;	789	my %attachment;
613		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
614	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
615	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
616		799
617	use sort 'stable';	800	use sort 'stable';
618		801
…		…
652	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
653		836
654	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
655	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
656	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
657	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
658		841
659	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
660	my $pkg = shift @arg;	843	my $pkg = shift @arg;
661		844
662	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
691	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
692	}	875	}
693		876
694	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
695	} else {	878	} else {
696	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
697	}	880	}
698		881
699	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
700	}	883	}
701		884
…		…
703	if (ref $_[0]) {	886	if (ref $_[0]) {
704	_object_attach @_;	887	_object_attach @_;
705	} else {	888	} else {
706	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
707	}	890	}
		891	_recalc_want;
708	};	892	};
709		893
710	# all those should be optimised	894	# all those should be optimised
711	sub cf::attachable::detach {	895	sub cf::attachable::detach {
712	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
715	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
716	reattach ($obj);	900	reattach ($obj);
717	} else {	901	} else {
718	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
719	}	903	}
		904	_recalc_want;
720	};	905	};
721		906
722	sub cf::attachable::attached {	907	sub cf::attachable::attached {
723	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
724		909
…		…
739	";	924	";
740	die if $@;	925	die if $@;
741	}	926	}
742		927
743	our $override;	928	our $override;
744	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?
745		930
746	sub override {	931	sub override {
747	$override = 1;	932	$override = 1;
748	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
749	}	934	}
750		935
751	sub do_invoke {	936	sub do_invoke {
752	my $event = shift;	937	my $event = shift;
753	my $callbacks = shift;	938	my $callbacks = shift;
754		939
755	@invoke_results = ();	940	@INVOKE_RESULTS = ();
756		941
757	local $override;	942	local $override;
758		943
759	for (@$callbacks) {	944	for (@$callbacks) {
760	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
777		962
778	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
779		964
780	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
781	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
782	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
783		968
784	=back	969	=back
785		970
786	=cut	971	=cut
787		972
788	#############################################################################	973	#############################################################################
789	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
790		1017
791	sub reattach {	1018	sub reattach {
792	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
793	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
794		1023
795	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
796		1025
797	@$registry = ();	1026	@$registry = ();
798		1027
…		…
839	sub object_freezer_save {	1068	sub object_freezer_save {
840	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
841		1070
842	sync_job {	1071	sync_job {
843	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
844	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
845	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
846		1076
847	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
848	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
849	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
850	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
851	close $fh;	1081	close $fh;
852		1082
853	if (@$objs) {	1083	if (@$objs) {
854	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) {
855	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
856	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
857	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
858	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
859	close $fh;	1089	close $fh;
860	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
861	}	1091	}
862	} else {	1092	} else {
863	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
869	}	1099	}
870	} else {	1100	} else {
871	aio_unlink $filename;	1101	aio_unlink $filename;
872	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
873	}	1103	}
874	}	1104	};
875	}	1105	}
876		1106
877	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
878	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
879		1109
…		…
891	or return;	1121	or return;
892		1122
893	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
894	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
895	or return;	1125	or return;
		1126
896	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
897	}	1129	}
898		1130
		1131	utf8::decode (my $decname = $filename);
899	warn sprintf "loading %s (%d)\n",	1132	warn sprintf "loading %s (%d,%d)\n",
900	$filename, length $data, scalar @{$av || []};#d#	1133	$decname, length $data, scalar @{$av || []};
		1134
901	return ($data, $av);	1135	($data, $av)
902	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
903		1143
904	#############################################################################	1144	#############################################################################
905	# command handling &c	1145	# command handling &c
906		1146
907	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
920	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
921	}	1161	}
922		1162
923	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
924		1164
925	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.
926		1170
927	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
928	called.	1172	called.
929		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
930	=cut	1185	=cut
931		1186
932	sub register_extcmd {	1187	sub register_extcmd {
933	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
934		1189
935	my $caller = caller;
936	#warn "registering extcmd '$name' to '$caller'";
937
938	$EXTCMD{$name} = [$cb, $caller];	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
939	}	1197	}
940		1198
941	cf::player->attach (	1199	cf::player->attach (
942	on_command => sub {	1200	on_command => sub {
943	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
952	cf::override;	1210	cf::override;
953	},	1211	},
954	on_extcmd => sub {	1212	on_extcmd => sub {
955	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
956		1214
957	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
958		1216
959	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
960	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
961	if (my %reply = $cb->[0]->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
962	$pl->ext_reply ($msg->{msgid}, %reply);
963	}
964	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
965	} else {	1232	} else {
966	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
967	}	1234	}
968		1235
969	cf::override;	1236	cf::override;
970	},	1237	},
971	);	1238	);
972		1239
973	sub register {
974	my ($base, $pkg) = @_;
975
976	#TODO
977	}
978
979	sub load_extension {
980	my ($path) = @_;
981
982	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
983	my $base = $1;
984	my $pkg = $1;
985	$pkg =~ s/[^[:word:]]/_/g;
986	$pkg = "ext::$pkg";
987
988	warn "loading '$path' into '$pkg'\n";
989
990	open my $fh, "<:utf8", $path
991	or die "$path: $!";
992
993	my $source =
994	"package $pkg; use strict; use utf8;\n"
995	. "#line 1 \"$path\"\n{\n"
996	. (do { local $/; <$fh> })
997	. "\n};\n1";
998
999	eval $source
1000	or die $@ ? "$path: $@\n"
1001	: "extension disabled.\n";
1002
1003	push @exts, $pkg;
1004	$ext_pkg{$base} = $pkg;
1005
1006	# no strict 'refs';
1007	# @{"$pkg\::ISA"} = ext::;
1008
1009	register $base, $pkg;
1010	}
1011
1012	sub unload_extension {
1013	my ($pkg) = @_;
1014
1015	warn "removing extension $pkg\n";
1016
1017	# remove hooks
1018	#TODO
1019	# for my $idx (0 .. $#PLUGIN_EVENT) {
1020	# delete $hook[$idx]{$pkg};
1021	# }
1022
1023	# remove commands
1024	for my $name (keys %COMMAND) {
1025	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1026
1027	if (@cb) {
1028	$COMMAND{$name} = \@cb;
1029	} else {
1030	delete $COMMAND{$name};
1031	}
1032	}
1033
1034	# remove extcmds
1035	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1036	delete $EXTCMD{$name};
1037	}
1038
1039	if (my $cb = $pkg->can ("unload")) {
1040	eval {
1041	$cb->($pkg);
1042	1
1043	} or warn "$pkg unloaded, but with errors: $@";
1044	}
1045
1046	Symbol::delete_package $pkg;
1047	}
1048
1049	sub load_extensions {	1240	sub load_extensions {
		1241	cf::sync_job {
		1242	my %todo;
		1243
1050	for my $ext (<$LIBDIR/*.ext>) {	1244	for my $path (<$LIBDIR/*.ext>) {
1051	next unless -r $ext;	1245	next unless -r $path;
1052	eval {	1246
1053	load_extension $ext;	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;
1054	1	1304	}
1055	} or warn "$ext not loaded: $@";	1305
		1306	skip:
		1307	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1308	unless $progress;
		1309	}
1056	}	1310	};
1057	}	1311	}
1058		1312
1059	#############################################################################	1313	#############################################################################
1060	# load/save/clean perl data associated with a map
1061		1314
1062	*cf::mapsupport::on_clean = sub {	1315	=back
1063	my ($map) = @_;
1064
1065	my $path = $map->tmpname;
1066	defined $path or return;
1067
1068	unlink "$path.pst";
1069	};
1070
1071	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1072
1073	#############################################################################
1074	# load/save perl data associated with player->ob objects
1075
1076	sub all_objects(@) {
1077	@_, map all_objects ($_->inv), @_
1078	}
1079
1080	# TODO: compatibility cruft, remove when no longer needed
1081	cf::player->attach (
1082	on_load => sub {
1083	my ($pl, $path) = @_;
1084
1085	for my $o (all_objects $pl->ob) {
1086	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1087	$o->set_ob_key_value ("_perl_data");
1088
1089	%$o = %{ Storable::thaw pack "H*", $value };
1090	}
1091	}
1092	},
1093	);
1094
1095	#############################################################################
1096		1316
1097	=head2 CORE EXTENSIONS	1317	=head2 CORE EXTENSIONS
1098		1318
1099	Functions and methods that extend core crossfire objects.	1319	Functions and methods that extend core crossfire objects.
1100		1320
…		…
1106		1326
1107	=head3 cf::player	1327	=head3 cf::player
1108		1328
1109	=over 4	1329	=over 4
1110		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
1111	=item cf::player::find $login	1345	=item cf::player::find $login
1112		1346
1113	Returns the given player object, loading it if necessary (might block).	1347	Returns the given player object, loading it if necessary (might block).
1114		1348
1115	=cut	1349	=cut
1116		1350
1117	sub playerdir($) {	1351	sub playerdir($) {
1118	cf::localdir	1352	"$PLAYERDIR/"
1119	. "/"
1120	. cf::playerdir
1121	. "/"
1122	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1353	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1123	}	1354	}
1124		1355
1125	sub path($) {	1356	sub path($) {
1126	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1357	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1127		1358
1128	(playerdir $login) . "/$login.pl"	1359	(playerdir $login) . "/playerdata"
1129	}	1360	}
1130		1361
1131	sub find_active($) {	1362	sub find_active($) {
1132	$cf::PLAYER{$_[0]}	1363	$cf::PLAYER{$_[0]}
1133	and $cf::PLAYER{$_[0]}->active	1364	and $cf::PLAYER{$_[0]}->active
…		…
1136		1367
1137	sub exists($) {	1368	sub exists($) {
1138	my ($login) = @_;	1369	my ($login) = @_;
1139		1370
1140	$cf::PLAYER{$login}	1371	$cf::PLAYER{$login}
1141	or cf::sync_job { !aio_stat $login }	1372	or cf::sync_job { !aio_stat path $login }
1142	}	1373	}
1143		1374
1144	sub find($) {	1375	sub find($) {
1145	return $cf::PLAYER{$_[0]} || do {	1376	return $cf::PLAYER{$_[0]} || do {
1146	my $login = $_[0];	1377	my $login = $_[0];
1147		1378
1148	my $guard = cf::lock_acquire "user_find:$login";	1379	my $guard = cf::lock_acquire "user_find:$login";
1149		1380
1150	$cf::PLAYER{$_[0]} || do {	1381	$cf::PLAYER{$_[0]} || do {
1151	my $pl = load_pl path $login	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
1152	or return;	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;
1153	$cf::PLAYER{$login} = $pl	1396	$cf::PLAYER{$login} = $pl
1154	}	1397	}
1155	}	1398	}
1156	}	1399	}
1157		1400
…		…
1167		1410
1168	aio_mkdir playerdir $pl, 0770;	1411	aio_mkdir playerdir $pl, 0770;
1169	$pl->{last_save} = $cf::RUNTIME;	1412	$pl->{last_save} = $cf::RUNTIME;
1170		1413
1171	$pl->save_pl ($path);	1414	$pl->save_pl ($path);
1172	Coro::cede;	1415	cf::cede_to_tick;
1173	}	1416	}
1174		1417
1175	sub new($) {	1418	sub new($) {
1176	my ($login) = @_;	1419	my ($login) = @_;
1177		1420
…		…
1183	$cf::PLAYER{$login} = $self;	1426	$cf::PLAYER{$login} = $self;
1184		1427
1185	$self	1428	$self
1186	}	1429	}
1187		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
1188	=item $pl->quit_character	1441	=item $pl->quit_character
1189		1442
1190	Nukes the player without looking back. If logged in, the connection will	1443	Nukes the player without looking back. If logged in, the connection will
1191	be destroyed. May block for a long time.	1444	be destroyed. May block for a long time.
1192		1445
1193	=cut	1446	=cut
1194		1447
1195	sub quit_character {	1448	sub quit_character {
1196	my ($pl) = @_;	1449	my ($pl) = @_;
		1450
		1451	my $name = $pl->ob->name;
1197		1452
1198	$pl->{deny_save} = 1;	1453	$pl->{deny_save} = 1;
1199	$pl->password ("*"); # this should lock out the player until we nuked the dir	1454	$pl->password ("*"); # this should lock out the player until we nuked the dir
1200		1455
1201	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1456	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1206	my $path = playerdir $pl;	1461	my $path = playerdir $pl;
1207	my $temp = "$path~$cf::RUNTIME~deleting~";	1462	my $temp = "$path~$cf::RUNTIME~deleting~";
1208	aio_rename $path, $temp;	1463	aio_rename $path, $temp;
1209	delete $cf::PLAYER{$pl->ob->name};	1464	delete $cf::PLAYER{$pl->ob->name};
1210	$pl->destroy;	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
1211	IO::AIO::aio_rmtree $temp;	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;
1212	}	1487	}
1213		1488
1214	=item cf::player::list_logins	1489	=item cf::player::list_logins
1215		1490
1216	Returns am arrayref of all valid playernames in the system, can take a	1491	Returns am arrayref of all valid playernames in the system, can take a
1217	while and may block, so not sync_job-capable, ever.	1492	while and may block, so not sync_job-capable, ever.
1218		1493
1219	=cut	1494	=cut
1220		1495
1221	sub list_logins {	1496	sub list_logins {
1222	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1497	my $dirs = aio_readdir $PLAYERDIR
1223	or return [];	1498	or return [];
1224		1499
1225	my @logins;	1500	my @logins;
1226		1501
1227	for my $login (@$dirs) {	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") {
1228	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1507	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1229	aio_read $fh, 0, 512, my $buf, 0 or next;	1508	aio_read $fh, 0, 512, my $buf, 0 or next;
1230	$buf !~ /^password -------------$/ or next; # official not-valid tag	1509	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1510	}
1231		1511
1232	utf8::decode $login;	1512	utf8::decode $login;
1233	push @logins, $login;	1513	push @logins, $login;
1234	}	1514	}
1235		1515
1236	\@logins	1516	\@logins
1237	}	1517	}
1238		1518
1239	=item $player->maps	1519	=item $player->maps
1240		1520
1241	Returns an arrayref of cf::path's of all maps that are private for this	1521	Returns an arrayref of map paths that are private for this
1242	player. May block.	1522	player. May block.
1243		1523
1244	=cut	1524	=cut
1245		1525
1246	sub maps($) {	1526	sub maps($) {
1247	my ($pl) = @_;	1527	my ($pl) = @_;
		1528
		1529	$pl = ref $pl ? $pl->ob->name : $pl;
1248		1530
1249	my $files = aio_readdir playerdir $pl	1531	my $files = aio_readdir playerdir $pl
1250	or return;	1532	or return;
1251		1533
1252	my @paths;	1534	my @paths;
1253		1535
1254	for (@$files) {	1536	for (@$files) {
1255	utf8::decode $_;	1537	utf8::decode $_;
1256	next if /\.(?:pl|pst)$/;	1538	next if /\.(?:pl|pst)$/;
1257	next unless /^$PATH_SEP/;	1539	next unless /^$PATH_SEP/o;
1258		1540
1259	s/$PATH_SEP/\//g;	1541	push @paths, cf::map::normalise "~$pl/$_";
1260	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1261	}	1542	}
1262		1543
1263	\@paths	1544	\@paths
1264	}	1545	}
1265		1546
		1547	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1548
		1549	Expand crossfire pod fragments into protocol xml.
		1550
		1551	=cut
		1552
		1553	sub expand_cfpod {
		1554	((my $self), (local $_)) = @_;
		1555
		1556	# escape & and <
		1557	s/&/&amp;/g;
		1558	s/(?<![BIUGHT])</&lt;/g;
		1559
		1560	# this is buggy, it needs to properly take care of nested <'s
		1561
		1562	1 while
		1563	# replace B<>, I<>, U<> etc.
		1564	s/B<([^\>]*)>/<b>$1<\/b>/
		1565	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1566	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1567	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1568	# replace G<male|female> tags
		1569	|| s{G<([^>|]*)\|([^>]*)>}{
		1570	$self->gender ? $2 : $1
		1571	}ge
		1572	# replace H<hint text>
		1573	|| s{H<([^\>]*)>}
		1574	{
		1575	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1576	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1577	"")
		1578	[$self->{hintmode}]
		1579	}ge;
		1580
		1581	# create single paragraphs (very hackish)
		1582	s/(?<=\S)\n(?=\w)/ /g;
		1583
		1584	# compress some whitespace
		1585	s/\s+\n/\n/g; # ws line-ends
		1586	s/\n\n+/\n/g; # double lines
		1587	s/^\n+//; # beginning lines
		1588	s/\n+$//; # ending lines
		1589
		1590	$_
		1591	}
		1592
		1593	sub hintmode {
		1594	$_[0]{hintmode} = $_[1] if @_ > 1;
		1595	$_[0]{hintmode}
		1596	}
		1597
1266	=item $player->ext_reply ($msgid, $msgtype, %msg)	1598	=item $player->ext_reply ($msgid, @msg)
1267		1599
1268	Sends an ext reply to the player.	1600	Sends an ext reply to the player.
1269		1601
1270	=cut	1602	=cut
1271		1603
1272	sub ext_reply($$$%) {	1604	sub ext_reply($$@) {
1273	my ($self, $id, %msg) = @_;	1605	my ($self, $id, @msg) = @_;
1274		1606
1275	$msg{msgid} = $id;	1607	$self->ns->ext_reply ($id, @msg)
1276
1277	$self->send ("ext " . cf::to_json \%msg);
1278	}	1608	}
1279		1609
1280	package cf;	1610	=item $player->ext_msg ($type, @msg)
		1611
		1612	Sends an ext event to the client.
		1613
		1614	=cut
		1615
		1616	sub ext_msg($$@) {
		1617	my ($self, $type, @msg) = @_;
		1618
		1619	$self->ns->ext_msg ($type, @msg);
		1620	}
		1621
		1622	=head3 cf::region
		1623
		1624	=over 4
		1625
		1626	=cut
		1627
		1628	package cf::region;
		1629
		1630	=item cf::region::find_by_path $path
		1631
		1632	Tries to decuce the likely region for a map knowing only its path.
		1633
		1634	=cut
		1635
		1636	sub find_by_path($) {
		1637	my ($path) = @_;
		1638
		1639	my ($match, $specificity);
		1640
		1641	for my $region (list) {
		1642	if ($region->{match} && $path =~ $region->{match}) {
		1643	($match, $specificity) = ($region, $region->specificity)
		1644	if $region->specificity > $specificity;
		1645	}
		1646	}
		1647
		1648	$match
		1649	}
1281		1650
1282	=back	1651	=back
1283
1284		1652
1285	=head3 cf::map	1653	=head3 cf::map
1286		1654
1287	=over 4	1655	=over 4
1288		1656
…		…
1291	package cf::map;	1659	package cf::map;
1292		1660
1293	use Fcntl;	1661	use Fcntl;
1294	use Coro::AIO;	1662	use Coro::AIO;
1295		1663
		1664	use overload
		1665	'""' => \&as_string,
		1666	fallback => 1;
		1667
1296	our $MAX_RESET = 3600;	1668	our $MAX_RESET = 3600;
1297	our $DEFAULT_RESET = 3000;	1669	our $DEFAULT_RESET = 3000;
1298		1670
1299	sub generate_random_map {	1671	sub generate_random_map {
1300	my ($path, $rmp) = @_;	1672	my ($self, $rmp) = @_;
1301
1302	# mit "rum" bekleckern, nicht	1673	# mit "rum" bekleckern, nicht
1303	cf::map::_create_random_map	1674	$self->_create_random_map (
1304	$path,
1305	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1675	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1306	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1676	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1307	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1677	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1308	$rmp->{exit_on_final_map},	1678	$rmp->{exit_on_final_map},
1309	$rmp->{xsize}, $rmp->{ysize},	1679	$rmp->{xsize}, $rmp->{ysize},
1310	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1680	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1311	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1681	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1312	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1682	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1313	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1683	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1314	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1684	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1315	(cf::region::find $rmp->{region})	1685	(cf::region::find $rmp->{region}), $rmp->{custom}
		1686	)
		1687	}
		1688
		1689	=item cf::map->register ($regex, $prio)
		1690
		1691	Register a handler for the map path matching the given regex at the
		1692	givne priority (higher is better, built-in handlers have priority 0, the
		1693	default).
		1694
		1695	=cut
		1696
		1697	sub register {
		1698	my (undef, $regex, $prio) = @_;
		1699	my $pkg = caller;
		1700
		1701	no strict;
		1702	push @{"$pkg\::ISA"}, __PACKAGE__;
		1703
		1704	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1705	}
		1706
		1707	# also paths starting with '/'
		1708	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1709
		1710	sub thawer_merge {
		1711	my ($self, $merge) = @_;
		1712
		1713	# we have to keep some variables in memory intact
		1714	local $self->{path};
		1715	local $self->{load_path};
		1716
		1717	$self->SUPER::thawer_merge ($merge);
		1718	}
		1719
		1720	sub normalise {
		1721	my ($path, $base) = @_;
		1722
		1723	$path = "$path"; # make sure its a string
		1724
		1725	$path =~ s/\.map$//;
		1726
		1727	# map plan:
		1728	#
		1729	# /! non-realised random map exit (special hack!)
		1730	# {... are special paths that are not being touched
		1731	# ?xxx/... are special absolute paths
		1732	# ?random/... random maps
		1733	# /... normal maps
		1734	# ~user/... per-player map of a specific user
		1735
		1736	$path =~ s/$PATH_SEP/\//go;
		1737
		1738	# treat it as relative path if it starts with
		1739	# something that looks reasonable
		1740	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1741	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1742
		1743	$base =~ s{[^/]+/?$}{};
		1744	$path = "$base/$path";
		1745	}
		1746
		1747	for ($path) {
		1748	redo if s{//}{/};
		1749	redo if s{/\.?/}{/};
		1750	redo if s{/[^/]+/\.\./}{/};
		1751	}
		1752
		1753	$path
		1754	}
		1755
		1756	sub new_from_path {
		1757	my (undef, $path, $base) = @_;
		1758
		1759	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1760
		1761	$path = normalise $path, $base;
		1762
		1763	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1764	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1765	my $self = bless cf::map::new, $pkg;
		1766	$self->{path} = $path; $self->path ($path);
		1767	$self->init; # pass $1 etc.
		1768	return $self;
		1769	}
		1770	}
		1771
		1772	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1773	()
		1774	}
		1775
		1776	sub init {
		1777	my ($self) = @_;
		1778
		1779	$self
		1780	}
		1781
		1782	sub as_string {
		1783	my ($self) = @_;
		1784
		1785	"$self->{path}"
		1786	}
		1787
		1788	# the displayed name, this is a one way mapping
		1789	sub visible_name {
		1790	&as_string
		1791	}
		1792
		1793	# the original (read-only) location
		1794	sub load_path {
		1795	my ($self) = @_;
		1796
		1797	"$MAPDIR/$self->{path}.map"
		1798	}
		1799
		1800	# the temporary/swap location
		1801	sub save_path {
		1802	my ($self) = @_;
		1803
		1804	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1805	"$TMPDIR/$path.map"
		1806	}
		1807
		1808	# the unique path, undef == no special unique path
		1809	sub uniq_path {
		1810	my ($self) = @_;
		1811
		1812	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1813	"$UNIQUEDIR/$path"
1316	}	1814	}
1317		1815
1318	# and all this just because we cannot iterate over	1816	# and all this just because we cannot iterate over
1319	# all maps in C++...	1817	# all maps in C++...
1320	sub change_all_map_light {	1818	sub change_all_map_light {
…		…
1322		1820
1323	$_->change_map_light ($change)	1821	$_->change_map_light ($change)
1324	for grep $_->outdoor, values %cf::MAP;	1822	for grep $_->outdoor, values %cf::MAP;
1325	}	1823	}
1326		1824
		1825	sub decay_objects {
		1826	my ($self) = @_;
		1827
		1828	return if $self->{deny_reset};
		1829
		1830	$self->do_decay_objects;
		1831	}
		1832
		1833	sub unlink_save {
		1834	my ($self) = @_;
		1835
		1836	utf8::encode (my $save = $self->save_path);
		1837	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1838	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1839	}
		1840
1327	sub try_load_header($) {	1841	sub load_header_from($) {
1328	my ($path) = @_;	1842	my ($self, $path) = @_;
1329		1843
1330	utf8::encode $path;	1844	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	1845	my $f = new_from_file cf::object::thawer $path
1332	or return;	1846	or return;
1333		1847
1334	my $map = cf::map::new	1848	$self->_load_header ($f)
1335	or return;	1849	or return;
1336		1850
1337	# for better error messages only, will be overwritten	1851	local $MAP_LOADING{$self->{path}} = $self;
1338	$map->path ($path);	1852	$f->resolve_delayed_derefs;
1339		1853
1340	$map->load_header ($path)	1854	$self->{load_path} = $path;
		1855
		1856	1
		1857	}
		1858
		1859	sub load_header_orig {
		1860	my ($self) = @_;
		1861
		1862	$self->load_header_from ($self->load_path)
		1863	}
		1864
		1865	sub load_header_temp {
		1866	my ($self) = @_;
		1867
		1868	$self->load_header_from ($self->save_path)
		1869	}
		1870
		1871	sub prepare_temp {
		1872	my ($self) = @_;
		1873
		1874	$self->last_access ((delete $self->{last_access})
		1875	|| $cf::RUNTIME); #d#
		1876	# safety
		1877	$self->{instantiate_time} = $cf::RUNTIME
		1878	if $self->{instantiate_time} > $cf::RUNTIME;
		1879	}
		1880
		1881	sub prepare_orig {
		1882	my ($self) = @_;
		1883
		1884	$self->{load_original} = 1;
		1885	$self->{instantiate_time} = $cf::RUNTIME;
		1886	$self->last_access ($cf::RUNTIME);
		1887	$self->instantiate;
		1888	}
		1889
		1890	sub load_header {
		1891	my ($self) = @_;
		1892
		1893	if ($self->load_header_temp) {
		1894	$self->prepare_temp;
		1895	} else {
		1896	$self->load_header_orig
1341	or return;	1897	or return;
		1898	$self->prepare_orig;
		1899	}
1342		1900
1343	$map->{load_path} = $path;	1901	$self->{deny_reset} = 1
		1902	if $self->no_reset;
1344		1903
1345	$map	1904	$self->default_region (cf::region::find_by_path $self->{path})
		1905	unless $self->default_region;
		1906
		1907	1
1346	}	1908	}
1347		1909
1348	sub find;	1910	sub find;
1349	sub find {	1911	sub find {
1350	my ($path, $origin) = @_;	1912	my ($path, $origin) = @_;
1351		1913
1352	#warn "find<$path,$origin>\n";#d#
1353
1354	$path = new cf::path $path, $origin && $origin->path;	1914	$path = normalise $path, $origin && $origin->path;
1355	my $key = $path->as_string;
1356		1915
		1916	cf::lock_wait "map_data:$path";#d#remove
1357	cf::lock_wait "map_find:$key";	1917	cf::lock_wait "map_find:$path";
1358		1918
1359	$cf::MAP{$key} || do {	1919	$cf::MAP{$path} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	1920	my $guard1 = cf::lock_acquire "map_find:$path";
		1921	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1361		1922
1362	# do it the slow way	1923	my $map = new_from_path cf::map $path
1363	my $map = try_load_header $path->save_path;
1364
1365	Coro::cede;
1366
1367	if ($map) {
1368	$map->last_access ((delete $map->{last_access})
1369	|| $cf::RUNTIME); #d#
1370	# safety
1371	$map->{instantiate_time} = $cf::RUNTIME
1372	if $map->{instantiate_time} > $cf::RUNTIME;
1373	} else {
1374	if (my $rmp = $path->random_map_params) {
1375	$map = generate_random_map $key, $rmp;
1376	} else {
1377	$map = try_load_header $path->load_path;
1378	}
1379
1380	$map or return;	1924	or return;
1381		1925
1382	$map->{load_original} = 1;
1383	$map->{instantiate_time} = $cf::RUNTIME;
1384	$map->last_access ($cf::RUNTIME);
1385	$map->instantiate;
1386
1387	# per-player maps become, after loading, normal maps
1388	$map->per_player (0) if $path->{user_rel};
1389	}
1390
1391	$map->path ($key);
1392	$map->{path} = $path;
1393	$map->{last_save} = $cf::RUNTIME;	1926	$map->{last_save} = $cf::RUNTIME;
1394		1927
1395	Coro::cede;	1928	$map->load_header
		1929	or return;
1396		1930
1397	if ($map->should_reset) {	1931	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1932	# doing this can freeze the server in a sync job, obviously
		1933	#$cf::WAIT_FOR_TICK->wait;
		1934	undef $guard1;
		1935	undef $guard2;
1398	$map->reset;	1936	$map->reset;
1399	undef $guard;
1400	$map = find $path	1937	return find $path;
1401	or return;
1402	}	1938	}
1403		1939
1404	$cf::MAP{$key} = $map	1940	$cf::MAP{$path} = $map
1405	}	1941	}
1406	}	1942	}
		1943
		1944	sub pre_load { }
		1945	sub post_load { }
1407		1946
1408	sub load {	1947	sub load {
1409	my ($self) = @_;	1948	my ($self) = @_;
1410		1949
		1950	local $self->{deny_reset} = 1; # loading can take a long time
		1951
1411	my $path = $self->{path};	1952	my $path = $self->{path};
		1953
		1954	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1955	my $guard = cf::lock_acquire "map_data:$path";
1413		1956
		1957	return unless $self->valid;
1414	return if $self->in_memory != cf::MAP_SWAPPED;	1958	return unless $self->in_memory == cf::MAP_SWAPPED;
1415		1959
1416	$self->in_memory (cf::MAP_LOADING);	1960	$self->in_memory (cf::MAP_LOADING);
1417		1961
1418	$self->alloc;	1962	$self->alloc;
1419	$self->load_objects ($self->{load_path}, 1)	1963
		1964	$self->pre_load;
		1965	cf::cede_to_tick;
		1966
		1967	my $f = new_from_file cf::object::thawer $self->{load_path};
		1968	$f->skip_block;
		1969	$self->_load_objects ($f)
1420	or return;	1970	or return;
1421		1971
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1972	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};	1973	if delete $self->{load_original};
1424		1974
1425	if (my $uniq = $path->uniq_path) {	1975	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	1976	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	1977	unless (aio_stat $uniq) {
		1978	if (my $f = new_from_file cf::object::thawer $uniq) {
1428	$self->clear_unique_items;	1979	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	1980	$self->_load_objects ($f);
		1981	$f->resolve_delayed_derefs;
		1982	}
1430	}	1983	}
1431	}	1984	}
1432		1985
1433	Coro::cede;	1986	$f->resolve_delayed_derefs;
1434		1987
		1988	cf::cede_to_tick;
1435	# now do the right thing for maps	1989	# now do the right thing for maps
1436	$self->link_multipart_objects;	1990	$self->link_multipart_objects;
1437
1438	if ($self->{path}->is_style_map) {
1439	$self->{deny_save} = 1;
1440	$self->{deny_reset} = 1;
1441	} else {
1442	$self->fix_auto_apply;
1443	$self->decay_objects;
1444	$self->update_buttons;
1445	$self->set_darkness_map;
1446	$self->difficulty ($self->estimate_difficulty)	1991	$self->difficulty ($self->estimate_difficulty)
1447	unless $self->difficulty;	1992	unless $self->difficulty;
		1993	cf::cede_to_tick;
		1994
		1995	unless ($self->{deny_activate}) {
		1996	$self->decay_objects;
		1997	$self->fix_auto_apply;
		1998	$self->update_buttons;
		1999	cf::cede_to_tick;
		2000	$self->set_darkness_map;
		2001	cf::cede_to_tick;
1448	$self->activate;	2002	$self->activate;
1449	}	2003	}
1450		2004
1451	Coro::cede;	2005	$self->{last_save} = $cf::RUNTIME;
		2006	$self->last_access ($cf::RUNTIME);
1452		2007
1453	$self->in_memory (cf::MAP_IN_MEMORY);	2008	$self->in_memory (cf::MAP_IN_MEMORY);
		2009	}
		2010
		2011	$self->post_load;
		2012	}
		2013
		2014	sub customise_for {
		2015	my ($self, $ob) = @_;
		2016
		2017	return find "~" . $ob->name . "/" . $self->{path}
		2018	if $self->per_player;
		2019
		2020	# return find "?party/" . $ob->name . "/" . $self->{path}
		2021	# if $self->per_party;
		2022
		2023	$self
		2024	}
		2025
		2026	# find and load all maps in the 3x3 area around a map
		2027	sub load_neighbours {
		2028	my ($map) = @_;
		2029
		2030	my @neigh; # diagonal neighbours
		2031
		2032	for (0 .. 3) {
		2033	my $neigh = $map->tile_path ($_)
		2034	or next;
		2035	$neigh = find $neigh, $map
		2036	or next;
		2037	$neigh->load;
		2038
		2039	push @neigh,
		2040	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2041	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2042	}
		2043
		2044	for (grep defined $_->[0], @neigh) {
		2045	my ($path, $origin) = @$_;
		2046	my $neigh = find $path, $origin
		2047	or next;
		2048	$neigh->load;
		2049	}
1454	}	2050	}
1455		2051
1456	sub find_sync {	2052	sub find_sync {
1457	my ($path, $origin) = @_;	2053	my ($path, $origin) = @_;
1458		2054
1459	cf::sync_job { cf::map::find $path, $origin }	2055	cf::sync_job { find $path, $origin }
1460	}	2056	}
1461		2057
1462	sub do_load_sync {	2058	sub do_load_sync {
1463	my ($map) = @_;	2059	my ($map) = @_;
1464		2060
		2061	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2062	if $Coro::current == $Coro::main;
		2063
1465	cf::sync_job { $map->load };	2064	cf::sync_job { $map->load };
		2065	}
		2066
		2067	our %MAP_PREFETCH;
		2068	our $MAP_PREFETCHER = undef;
		2069
		2070	sub find_async {
		2071	my ($path, $origin, $load) = @_;
		2072
		2073	$path = normalise $path, $origin && $origin->{path};
		2074
		2075	if (my $map = $cf::MAP{$path}) {
		2076	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2077	}
		2078
		2079	$MAP_PREFETCH{$path} |= $load;
		2080
		2081	$MAP_PREFETCHER ||= cf::async {
		2082	$Coro::current->{desc} = "map prefetcher";
		2083
		2084	while (%MAP_PREFETCH) {
		2085	while (my ($k, $v) = each %MAP_PREFETCH) {
		2086	if (my $map = find $k) {
		2087	$map->load if $v;
		2088	}
		2089
		2090	delete $MAP_PREFETCH{$k};
		2091	}
		2092	}
		2093	undef $MAP_PREFETCHER;
		2094	};
		2095	$MAP_PREFETCHER->prio (6);
		2096
		2097	()
1466	}	2098	}
1467		2099
1468	sub save {	2100	sub save {
1469	my ($self) = @_;	2101	my ($self) = @_;
1470		2102
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	2103	my $lock = cf::lock_acquire "map_data:$self->{path}";
1472		2104
1473	$self->{last_save} = $cf::RUNTIME;	2105	$self->{last_save} = $cf::RUNTIME;
1474		2106
1475	return unless $self->dirty;	2107	return unless $self->dirty;
1476		2108
1477	my $save = $self->{path}->save_path; utf8::encode $save;	2109	my $save = $self->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2110	my $uniq = $self->uniq_path; utf8::encode $uniq;
1479		2111
1480	$self->{load_path} = $save;	2112	$self->{load_path} = $save;
1481		2113
1482	return if $self->{deny_save};	2114	return if $self->{deny_save};
1483		2115
1484	local $self->{last_access} = $self->last_access;#d#	2116	local $self->{last_access} = $self->last_access;#d#
1485		2117
1486	cf::async {	2118	cf::async {
		2119	$Coro::current->{desc} = "map player save";
1487	$_->contr->save for $self->players;	2120	$_->contr->save for $self->players;
1488	};	2121	};
1489		2122
1490	if ($uniq) {	2123	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2124	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);	2125	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {	2126	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2127	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}	2128	}
1496	}	2129	}
1497		2130
1498	sub swap_out {	2131	sub swap_out {
1499	my ($self) = @_;	2132	my ($self) = @_;
1500		2133
1501	# save first because save cedes	2134	# save first because save cedes
1502	$self->save;	2135	$self->save;
1503		2136
1504	my $lock = cf::lock_acquire "map_data:" . $self->path;	2137	my $lock = cf::lock_acquire "map_data:$self->{path}";
1505		2138
1506	return if $self->players;	2139	return if $self->players;
1507	return if $self->in_memory != cf::MAP_IN_MEMORY;	2140	return if $self->in_memory != cf::MAP_IN_MEMORY;
1508	return if $self->{deny_save};	2141	return if $self->{deny_save};
1509		2142
		2143	$self->in_memory (cf::MAP_SWAPPED);
		2144
		2145	$self->deactivate;
		2146	$_->clear_links_to ($self) for values %cf::MAP;
1510	$self->clear;	2147	$self->clear;
1511	$self->in_memory (cf::MAP_SWAPPED);
1512	}	2148	}
1513		2149
1514	sub reset_at {	2150	sub reset_at {
1515	my ($self) = @_;	2151	my ($self) = @_;
1516		2152
1517	# TODO: safety, remove and allow resettable per-player maps	2153	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};
1519	return 1e99 if $self->{deny_reset};	2154	return 1e99 if $self->{deny_reset};
1520		2155
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2156	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2157	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		2158
…		…
1528	my ($self) = @_;	2163	my ($self) = @_;
1529		2164
1530	$self->reset_at <= $cf::RUNTIME	2165	$self->reset_at <= $cf::RUNTIME
1531	}	2166	}
1532		2167
1533	sub unlink_save {
1534	my ($self) = @_;
1535
1536	utf8::encode (my $save = $self->{path}->save_path);
1537	aioreq_pri 3; IO::AIO::aio_unlink $save;
1538	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1539	}
1540
1541	sub rename {
1542	my ($self, $new_path) = @_;
1543
1544	$self->unlink_save;
1545
1546	delete $cf::MAP{$self->path};
1547	$self->{path} = new cf::path $new_path;
1548	$self->path ($self->{path}->as_string);
1549	$cf::MAP{$self->path} = $self;
1550
1551	$self->save;
1552	}
1553
1554	sub reset {	2168	sub reset {
1555	my ($self) = @_;	2169	my ($self) = @_;
1556		2170
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		2172
1559	return if $self->players;	2173	return if $self->players;
1560	return if $self->{path}{user_rel};#d#
1561		2174
1562	warn "resetting map ", $self->path;#d#	2175	warn "resetting map ", $self->path;
		2176
		2177	$self->in_memory (cf::MAP_SWAPPED);
		2178
		2179	# need to save uniques path
		2180	unless ($self->{deny_save}) {
		2181	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2182
		2183	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2184	if $uniq;
		2185	}
1563		2186
1564	delete $cf::MAP{$self->path};	2187	delete $cf::MAP{$self->path};
1565		2188
		2189	$self->deactivate;
1566	$_->clear_links_to ($self) for values %cf::MAP;	2190	$_->clear_links_to ($self) for values %cf::MAP;
		2191	$self->clear;
1567		2192
1568	$self->unlink_save;	2193	$self->unlink_save;
1569	$self->destroy;	2194	$self->destroy;
1570	}	2195	}
1571		2196
1572	my $nuke_counter = "aaaa";	2197	my $nuke_counter = "aaaa";
1573		2198
1574	sub nuke {	2199	sub nuke {
1575	my ($self) = @_;	2200	my ($self) = @_;
1576		2201
		2202	{
		2203	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2204
		2205	delete $cf::MAP{$self->path};
		2206
		2207	$self->unlink_save;
		2208
		2209	bless $self, "cf::map";
		2210	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	2211	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	2212	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	2213	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2214
		2215	$cf::MAP{$self->path} = $self;
		2216	}
		2217
1580	$self->reset; # polite request, might not happen	2218	$self->reset; # polite request, might not happen
1581	}	2219	}
1582		2220
1583	sub customise_for {	2221	=item $maps = cf::map::tmp_maps
1584	my ($map, $ob) = @_;
1585		2222
1586	if ($map->per_player) {	2223	Returns an arrayref with all map paths of currently instantiated and saved
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2224	maps. May block.
		2225
		2226	=cut
		2227
		2228	sub tmp_maps() {
1588	}	2229	[
1589		2230	map {
1590	$map	2231	utf8::decode $_;
		2232	/\.map$/
		2233	? normalise $_
		2234	: ()
		2235	} @{ aio_readdir $TMPDIR or [] }
		2236	]
1591	}	2237	}
1592		2238
1593	sub emergency_save {	2239	=item $maps = cf::map::random_maps
1594	my $freeze_guard = cf::freeze_mainloop;
1595		2240
1596	warn "enter emergency perl save\n";	2241	Returns an arrayref with all map paths of currently instantiated and saved
		2242	random maps. May block.
1597		2243
1598	cf::sync_job {	2244	=cut
1599	warn "begin emergency player save\n";
1600	$_->save for values %cf::PLAYER;
1601	warn "end emergency player save\n";
1602		2245
1603	warn "begin emergency map save\n";	2246	sub random_maps() {
1604	$_->save for values %cf::MAP;	2247	[
1605	warn "end emergency map save\n";	2248	map {
1606	};	2249	utf8::decode $_;
		2250	/\.map$/
		2251	? normalise "?random/$_"
		2252	: ()
		2253	} @{ aio_readdir $RANDOMDIR or [] }
		2254	]
		2255	}
1607		2256
1608	warn "leave emergency perl save\n";	2257	=item cf::map::unique_maps
		2258
		2259	Returns an arrayref of paths of all shared maps that have
		2260	instantiated unique items. May block.
		2261
		2262	=cut
		2263
		2264	sub unique_maps() {
		2265	[
		2266	map {
		2267	utf8::decode $_;
		2268	/\.map$/
		2269	? normalise $_
		2270	: ()
		2271	} @{ aio_readdir $UNIQUEDIR or [] }
		2272	]
1609	}	2273	}
1610		2274
1611	package cf;	2275	package cf;
1612		2276
1613	=back	2277	=back
1614		2278
		2279	=head3 cf::object
		2280
		2281	=cut
		2282
		2283	package cf::object;
		2284
		2285	=over 4
		2286
		2287	=item $ob->inv_recursive
		2288
		2289	Returns the inventory of the object _and_ their inventories, recursively.
		2290
		2291	=cut
		2292
		2293	sub inv_recursive_;
		2294	sub inv_recursive_ {
		2295	map { $_, inv_recursive_ $_->inv } @_
		2296	}
		2297
		2298	sub inv_recursive {
		2299	inv_recursive_ inv $_[0]
		2300	}
		2301
		2302	=item $ref = $ob->ref
		2303
		2304	creates and returns a persistent reference to an objetc that can be stored as a string.
		2305
		2306	=item $ob = cf::object::deref ($refstring)
		2307
		2308	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2309	even if the object actually exists. May block.
		2310
		2311	=cut
		2312
		2313	sub deref {
		2314	my ($ref) = @_;
		2315
		2316	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2317	my ($uuid, $name) = ($1, $2);
		2318	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2319	or return;
		2320	$pl->ob->uuid eq $uuid
		2321	or return;
		2322
		2323	$pl->ob
		2324	} else {
		2325	warn "$ref: cannot resolve object reference\n";
		2326	undef
		2327	}
		2328	}
		2329
		2330	package cf;
		2331
		2332	=back
1615		2333
1616	=head3 cf::object::player	2334	=head3 cf::object::player
1617		2335
1618	=over 4	2336	=over 4
1619		2337
…		…
1633		2351
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2352	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2353
1636	if ($self->{record_replies}) {	2354	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2355	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2356
1638	} else {	2357	} else {
		2358	my $pl = $self->contr;
		2359
		2360	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2361	my $dialog = $pl->{npc_dialog};
		2362	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2363
		2364	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2365	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2366	$self->message ($msg, $flags);
		2367	}
1641	}	2368	}
		2369	}
		2370
		2371	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2372
		2373	=cut
		2374
		2375	sub cf::object::send_msg {
		2376	my $pl = shift->contr
		2377	or return;
		2378	$pl->send_msg (@_);
1642	}	2379	}
1643		2380
1644	=item $player_object->may ("access")	2381	=item $player_object->may ("access")
1645		2382
1646	Returns wether the given player is authorized to access resource "access"	2383	Returns wether the given player is authorized to access resource "access"
…		…
1659		2396
1660	=item $player_object->enter_link	2397	=item $player_object->enter_link
1661		2398
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2399	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2400
1664	The player should be reaosnably safe there for short amounts of time. You	2401	The player should be reasonably safe there for short amounts of time. You
1665	I<MUST> call C<leave_link> as soon as possible, though.	2402	I<MUST> call C<leave_link> as soon as possible, though.
1666		2403
		2404	Will never block.
		2405
1667	=item $player_object->leave_link ($map, $x, $y)	2406	=item $player_object->leave_link ($map, $x, $y)
1668		2407
1669	Moves the player out of the specila link map onto the given map. If the	2408	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	2409	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	2410	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	2411	fails, to the emergency map position.
1673		2412
1674	Might block.	2413	Might block.
1675		2414
1676	=cut	2415	=cut
		2416
		2417	sub link_map {
		2418	unless ($LINK_MAP) {
		2419	$LINK_MAP = cf::map::find "{link}"
		2420	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2421	$LINK_MAP->load;
		2422	}
		2423
		2424	$LINK_MAP
		2425	}
1677		2426
1678	sub cf::object::player::enter_link {	2427	sub cf::object::player::enter_link {
1679	my ($self) = @_;	2428	my ($self) = @_;
1680		2429
1681	$self->deactivate_recursive;	2430	$self->deactivate_recursive;
1682		2431
1683	return if $self->map == $LINK_MAP;	2432	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		2433
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2434	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	2435	if $self->map && $self->map->{path} ne "{link}";
1687		2436
1688	$self->enter_map ($LINK_MAP, 20, 20);	2437	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1689	}	2438	}
1690		2439
1691	sub cf::object::player::leave_link {	2440	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	2441	my ($self, $map, $x, $y) = @_;
		2442
		2443	return unless $self->contr->active;
1693		2444
1694	my $link_pos = delete $self->{_link_pos};	2445	my $link_pos = delete $self->{_link_pos};
1695		2446
1696	unless ($map) {	2447	unless ($map) {
1697	# restore original map position	2448	# restore original map position
…		…
1711	# use -1 or undef as default coordinates, not 0, 0	2462	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	2463	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	2464	if $x <=0 && $y <= 0;
1714		2465
1715	$map->load;	2466	$map->load;
		2467	$map->load_neighbours;
1716		2468
1717	return unless $self->contr->active;	2469	return unless $self->contr->active;
1718	$self->activate_recursive;	2470	$self->activate_recursive;
		2471
		2472	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1719	$self->enter_map ($map, $x, $y);	2473	$self->enter_map ($map, $x, $y);
1720	}	2474	}
1721		2475
1722	cf::player->attach (	2476	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1723	on_logout => sub {
1724	my ($pl) = @_;
1725		2477
1726	# abort map switching before logout	2478	Moves the player to the given map-path and coordinates by first freezing
1727	if ($pl->ob->{_link_pos}) {	2479	her, loading and preparing them map, calling the provided $check callback
1728	cf::sync_job {	2480	that has to return the map if sucecssful, and then unfreezes the player on
1729	$pl->ob->leave_link	2481	the new (success) or old (failed) map position. In either case, $done will
1730	};	2482	be called at the end of this process.
1731	}
1732	},
1733	on_login => sub {
1734	my ($pl) = @_;
1735		2483
1736	# try to abort aborted map switching on player login :)
1737	# should happen only on crashes
1738	if ($pl->ob->{_link_pos}) {
1739	$pl->ob->enter_link;
1740	(async {
1741	# we need this sleep as the login has a concurrent enter_exit running
1742	# and this sleep increases chances of the player not ending up in scorn
1743	$pl->ob->reply (undef,
1744	"There was an internal problem at your last logout, "
1745	. "the server will try to bring you to your intended destination in a second.",
1746	cf::NDI_RED);
1747	Coro::Timer::sleep 1;
1748	$pl->ob->leave_link;
1749	})->prio (2);
1750	}
1751	},
1752	);
1753
1754	=item $player_object->goto ($path, $x, $y)
1755
1756	=cut	2484	=cut
		2485
		2486	our $GOTOGEN;
1757		2487
1758	sub cf::object::player::goto {	2488	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	2489	my ($self, $path, $x, $y, $check, $done) = @_;
1760		2490
1761	$path = new cf::path $path;	2491	# do generation counting so two concurrent goto's will be executed in-order
1762	$path ne "/" or Carp::cluck ("oy");#d#	2492	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		2493
1764	$self->enter_link;	2494	$self->enter_link;
1765		2495
1766	(async {	2496	(async {
1767	my $map = cf::map::find $path->as_string;	2497	$Coro::current->{desc} = "player::goto $path $x $y";
		2498
		2499	# *tag paths override both path and x|y
		2500	if ($path =~ /^\*(.*)$/) {
		2501	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2502	my $ob = $obs[rand @obs];
		2503
		2504	# see if we actually can go there
		2505	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2506	$ob = $obs[rand @obs];
		2507	} else {
		2508	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2509	}
		2510	# else put us there anyways for now #d#
		2511
		2512	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2513	} else {
		2514	($path, $x, $y) = (undef, undef, undef);
		2515	}
		2516	}
		2517
		2518	my $map = eval {
		2519	my $map = defined $path ? cf::map::find $path : undef;
		2520
		2521	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	2522	$map = $map->customise_for ($self);
1769		2523	$map = $check->($map) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	2524	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2525	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2526	}
1774		2527
		2528	$map
		2529	};
		2530
		2531	if ($@) {
		2532	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2533	LOG llevError | logBacktrace, Carp::longmess $@;
		2534	}
		2535
		2536	if ($gen == $self->{_goto_generation}) {
		2537	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	2538	$self->leave_link ($map, $x, $y);
		2539	}
		2540
		2541	$done->() if $done;
1776	})->prio (1);	2542	})->prio (1);
1777	}	2543	}
1778		2544
1779	=item $player_object->enter_exit ($exit_object)	2545	=item $player_object->enter_exit ($exit_object)
1780		2546
…		…
1782		2548
1783	sub parse_random_map_params {	2549	sub parse_random_map_params {
1784	my ($spec) = @_;	2550	my ($spec) = @_;
1785		2551
1786	my $rmp = { # defaults	2552	my $rmp = { # defaults
1787	xsize => 10,	2553	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2554	ysize => (cf::rndm 15, 40),
		2555	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2556	#layout => string,
1789	};	2557	};
1790		2558
1791	for (split /\n/, $spec) {	2559	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2560	my ($k, $v) = split /\s+/, $_, 2;
1793		2561
…		…
1797	$rmp	2565	$rmp
1798	}	2566	}
1799		2567
1800	sub prepare_random_map {	2568	sub prepare_random_map {
1801	my ($exit) = @_;	2569	my ($exit) = @_;
		2570
		2571	my $guard = cf::lock_acquire "exit_prepare:$exit";
1802		2572
1803	# all this does is basically replace the /! path by	2573	# all this does is basically replace the /! path by
1804	# a new random map path (?random/...) with a seed	2574	# a new random map path (?random/...) with a seed
1805	# that depends on the exit object	2575	# that depends on the exit object
1806		2576
1807	my $rmp = parse_random_map_params $exit->msg;	2577	my $rmp = parse_random_map_params $exit->msg;
1808		2578
1809	if ($exit->map) {	2579	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2580	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2581	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2582	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2583	$rmp->{origin_y} = $exit->y;
1814	}	2584	}
1815		2585
1816	$rmp->{random_seed} ||= $exit->random_seed;	2586	$rmp->{random_seed} ||= $exit->random_seed;
1817		2587
1818	my $data = cf::to_json $rmp;	2588	my $data = cf::to_json $rmp;
1819	my $md5 = Digest::MD5::md5_hex $data;	2589	my $md5 = Digest::MD5::md5_hex $data;
		2590	my $meta = "$RANDOMDIR/$md5.meta";
1820		2591
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2592	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2593	aio_write $fh, 0, (length $data), $data, 0;
		2594	undef $fh;
		2595	aio_rename "$meta~", $meta;
1823		2596
1824	$exit->slaying ("?random/$md5");	2597	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2598	$exit->msg (undef);
1826	}	2599	}
1827	}	2600	}
…		…
1829	sub cf::object::player::enter_exit {	2602	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2603	my ($self, $exit) = @_;
1831		2604
1832	return unless $self->type == cf::PLAYER;	2605	return unless $self->type == cf::PLAYER;
1833		2606
		2607	if ($exit->slaying eq "/!") {
		2608	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2609	# the problem is that $exit might not survive long enough
		2610	# so it needs to be done right now, right here
		2611	cf::sync_job { prepare_random_map $exit };
		2612	}
		2613
		2614	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2615	my $hp = $exit->stats->hp;
		2616	my $sp = $exit->stats->sp;
		2617
1834	$self->enter_link;	2618	$self->enter_link;
1835		2619
		2620	# if exit is damned, update players death & WoR home-position
		2621	$self->contr->savebed ($slaying, $hp, $sp)
		2622	if $exit->flag (FLAG_DAMNED);
		2623
1836	(async {	2624	(async {
		2625	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2626
1837	$self->deactivate_recursive; # just to be sure	2627	$self->deactivate_recursive; # just to be sure
1838	unless (eval {	2628	unless (eval {
1839	prepare_random_map $exit	2629	$self->goto ($slaying, $hp, $sp);
1840	if $exit->slaying eq "/!";
1841
1842	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1843	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1844		2630
1845	1;	2631	1;
1846	}) {	2632	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2633	$self->message ("Something went wrong deep within the crossfire server. "
1848	. "I'll try to bring you back to the map you were before. "	2634	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2635	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2636	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2637
1852	warn "ERROR in enter_exit: $@";	2638	warn "ERROR in enter_exit: $@";
1853	$self->leave_link;	2639	$self->leave_link;
1854	}	2640	}
1855	})->prio (1);	2641	})->prio (1);
…		…
1868		2654
1869	sub cf::client::send_drawinfo {	2655	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2656	my ($self, $text, $flags) = @_;
1871		2657
1872	utf8::encode $text;	2658	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2659	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2660	}
1875		2661
		2662	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2663
		2664	Send a drawinfo or msg packet to the client, formatting the msg for the
		2665	client if neccessary. C<$type> should be a string identifying the type of
		2666	the message, with C<log> being the default. If C<$color> is negative, suppress
		2667	the message unless the client supports the msg packet.
		2668
		2669	=cut
		2670
		2671	our %CHANNEL = (
		2672	"c/identify" => {
		2673	id => "infobox",
		2674	title => "Identify",
		2675	reply => undef,
		2676	tooltip => "Items recently identified",
		2677	},
		2678	"c/examine" => {
		2679	id => "infobox",
		2680	title => "Examine",
		2681	reply => undef,
		2682	tooltip => "Signs and other items you examined",
		2683	},
		2684	"c/book" => {
		2685	id => "infobox",
		2686	title => "Book",
		2687	reply => undef,
		2688	tooltip => "The contents of a note or book",
		2689	},
		2690	"c/lookat" => {
		2691	id => "infobox",
		2692	title => "Look",
		2693	reply => undef,
		2694	tooltip => "What you saw there",
		2695	},
		2696	"c/who" => {
		2697	id => "infobox",
		2698	title => "Players",
		2699	reply => undef,
		2700	tooltip => "Shows players who are currently online",
		2701	},
		2702	"c/body" => {
		2703	id => "infobox",
		2704	title => "Body Parts",
		2705	reply => undef,
		2706	tooltip => "Shows which body parts you posess and are available",
		2707	},
		2708	"c/uptime" => {
		2709	id => "infobox",
		2710	title => "Uptime",
		2711	reply => undef,
		2712	tooltip => "How long the server has been running sicne last restart",
		2713	},
		2714	"c/mapinfo" => {
		2715	id => "infobox",
		2716	title => "Map Info",
		2717	reply => undef,
		2718	tooltip => "Information related to the maps",
		2719	},
		2720	);
		2721
		2722	sub cf::client::send_msg {
		2723	my ($self, $channel, $msg, $color, @extra) = @_;
		2724
		2725	$msg = $self->pl->expand_cfpod ($msg);
		2726
		2727	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2728
		2729	# check predefined channels, for the benefit of C
		2730	if ($CHANNEL{$channel}) {
		2731	$channel = $CHANNEL{$channel};
		2732
		2733	$self->ext_msg (channel_info => $channel)
		2734	if $self->can_msg;
		2735
		2736	$channel = $channel->{id};
		2737
		2738	} elsif (ref $channel) {
		2739	# send meta info to client, if not yet sent
		2740	unless (exists $self->{channel}{$channel->{id}}) {
		2741	$self->{channel}{$channel->{id}} = $channel;
		2742	$self->ext_msg (channel_info => $channel)
		2743	if $self->can_msg;
		2744	}
		2745
		2746	$channel = $channel->{id};
		2747	}
		2748
		2749	return unless @extra || length $msg;
		2750
		2751	if ($self->can_msg) {
		2752	# default colour, mask it out
		2753	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2754	if $color & cf::NDI_DEF;
		2755
		2756	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2757	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2758	} else {
		2759	if ($color >= 0) {
		2760	# replace some tags by gcfclient-compatible ones
		2761	for ($msg) {
		2762	1 while
		2763	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2764	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2765	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2766	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2767	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2768	}
		2769
		2770	$color &= cf::NDI_COLOR_MASK;
		2771
		2772	utf8::encode $msg;
		2773
		2774	if (0 && $msg =~ /\[/) {
		2775	# COMMAND/INFO
		2776	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2777	} else {
		2778	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2779	$self->send_packet ("drawinfo $color $msg")
		2780	}
		2781	}
		2782	}
		2783	}
		2784
		2785	=item $client->ext_msg ($type, @msg)
		2786
		2787	Sends an ext event to the client.
		2788
		2789	=cut
		2790
		2791	sub cf::client::ext_msg($$@) {
		2792	my ($self, $type, @msg) = @_;
		2793
		2794	if ($self->extcmd == 2) {
		2795	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2796	} elsif ($self->extcmd == 1) { # TODO: remove
		2797	push @msg, msgtype => "event_$type";
		2798	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2799	}
		2800	}
		2801
		2802	=item $client->ext_reply ($msgid, @msg)
		2803
		2804	Sends an ext reply to the client.
		2805
		2806	=cut
		2807
		2808	sub cf::client::ext_reply($$@) {
		2809	my ($self, $id, @msg) = @_;
		2810
		2811	if ($self->extcmd == 2) {
		2812	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2813	} elsif ($self->extcmd == 1) {
		2814	#TODO: version 1, remove
		2815	unshift @msg, msgtype => "reply", msgid => $id;
		2816	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2817	}
		2818	}
1876		2819
1877	=item $success = $client->query ($flags, "text", \&cb)	2820	=item $success = $client->query ($flags, "text", \&cb)
1878		2821
1879	Queues a query to the client, calling the given callback with	2822	Queues a query to the client, calling the given callback with
1880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2823	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1881	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2824	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1882		2825
1883	Queries can fail, so check the return code. Or don't, as queries will become	2826	Queries can fail, so check the return code. Or don't, as queries will
1884	reliable at some point in the future.	2827	become reliable at some point in the future.
1885		2828
1886	=cut	2829	=cut
1887		2830
1888	sub cf::client::query {	2831	sub cf::client::query {
1889	my ($self, $flags, $text, $cb) = @_;	2832	my ($self, $flags, $text, $cb) = @_;
…		…
1897	utf8::encode $text;	2840	utf8::encode $text;
1898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2841	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1899		2842
1900	$self->send_packet ($self->{query_queue}[0][0])	2843	$self->send_packet ($self->{query_queue}[0][0])
1901	if @{ $self->{query_queue} } == 1;	2844	if @{ $self->{query_queue} } == 1;
		2845
		2846	1
1902	}	2847	}
1903		2848
1904	cf::client->attach (	2849	cf::client->attach (
		2850	on_connect => sub {
		2851	my ($ns) = @_;
		2852
		2853	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2854	},
1905	on_reply => sub {	2855	on_reply => sub {
1906	my ($ns, $msg) = @_;	2856	my ($ns, $msg) = @_;
1907		2857
1908	# this weird shuffling is so that direct followup queries	2858	# this weird shuffling is so that direct followup queries
1909	# get handled first	2859	# get handled first
1910	my $queue = delete $ns->{query_queue}	2860	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	2861	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		2862
1913	(shift @$queue)->[1]->($msg);	2863	(shift @$queue)->[1]->($msg);
		2864	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		2865
1915	push @{ $ns->{query_queue} }, @$queue;	2866	push @{ $ns->{query_queue} }, @$queue;
1916		2867
1917	if (@{ $ns->{query_queue} } == @$queue) {	2868	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	2869	if (@$queue) {
…		…
1920	} else {	2871	} else {
1921	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2872	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1922	}	2873	}
1923	}	2874	}
1924	},	2875	},
		2876	on_exticmd => sub {
		2877	my ($ns, $buf) = @_;
		2878
		2879	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2880
		2881	if (ref $msg) {
		2882	my ($type, $reply, @payload) =
		2883	"ARRAY" eq ref $msg
		2884	? @$msg
		2885	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2886
		2887	my @reply;
		2888
		2889	if (my $cb = $EXTICMD{$type}) {
		2890	@reply = $cb->($ns, @payload);
		2891	}
		2892
		2893	$ns->ext_reply ($reply, @reply)
		2894	if $reply;
		2895
		2896	} else {
		2897	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2898	}
		2899
		2900	cf::override;
		2901	},
1925	);	2902	);
1926		2903
1927	=item $client->async (\&cb)	2904	=item $client->async (\&cb)
1928		2905
1929	Create a new coroutine, running the specified callback. The coroutine will	2906	Create a new coroutine, running the specified callback. The coroutine will
…		…
1970	our $safe = new Safe "safe";	2947	our $safe = new Safe "safe";
1971	our $safe_hole = new Safe::Hole;	2948	our $safe_hole = new Safe::Hole;
1972		2949
1973	$SIG{FPE} = 'IGNORE';	2950	$SIG{FPE} = 'IGNORE';
1974		2951
1975	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2952	$safe->permit_only (Opcode::opset qw(
		2953	:base_core :base_mem :base_orig :base_math
		2954	grepstart grepwhile mapstart mapwhile
		2955	sort time
		2956	));
1976		2957
1977	# here we export the classes and methods available to script code	2958	# here we export the classes and methods available to script code
1978		2959
1979	=pod	2960	=pod
1980		2961
1981	The following fucntions and emthods are available within a safe environment:	2962	The following functions and methods are available within a safe environment:
1982		2963
1983	cf::object contr pay_amount pay_player map	2964	cf::object
		2965	contr pay_amount pay_player map x y force_find force_add destroy
		2966	insert remove name archname title slaying race decrease_ob_nr
		2967
1984	cf::object::player player	2968	cf::object::player
1985	cf::player peaceful	2969	player
1986	cf::map trigger	2970
		2971	cf::player
		2972	peaceful
		2973
		2974	cf::map
		2975	trigger
1987		2976
1988	=cut	2977	=cut
1989		2978
1990	for (	2979	for (
1991	["cf::object" => qw(contr pay_amount pay_player map)],	2980	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2981	insert remove inv name archname title slaying race
		2982	decrease_ob_nr destroy)],
1992	["cf::object::player" => qw(player)],	2983	["cf::object::player" => qw(player)],
1993	["cf::player" => qw(peaceful)],	2984	["cf::player" => qw(peaceful)],
1994	["cf::map" => qw(trigger)],	2985	["cf::map" => qw(trigger)],
1995	) {	2986	) {
1996	no strict 'refs';	2987	no strict 'refs';
…		…
2067	=back	3058	=back
2068		3059
2069	=cut	3060	=cut
2070		3061
2071	#############################################################################	3062	#############################################################################
		3063	# the server's init and main functions
2072		3064
2073	=head2 EXTENSION DATABASE SUPPORT	3065	sub load_facedata($) {
		3066	my ($path) = @_;
2074		3067
2075	Crossfire maintains a very simple database for extension use. It can	3068	# HACK to clear player env face cache, we need some signal framework
2076	currently store anything that can be serialised using Storable, which	3069	# for this (global event?)
2077	excludes objects.	3070	%ext::player_env::MUSIC_FACE_CACHE = ();
2078		3071
2079	The parameter C<$family> should best start with the name of the extension	3072	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2080	using it, it should be unique.
2081		3073
2082	=over 4	3074	warn "loading facedata from $path\n";
2083		3075
2084	=item $hashref = cf::db_get $family	3076	my $facedata;
		3077	0 < aio_load $path, $facedata
		3078	or die "$path: $!";
2085		3079
2086	Return a hashref for use by the extension C<$family>, which can be	3080	$facedata = Coro::Storable::thaw $facedata;
2087	modified. After modifications, you have to call C<cf::db_dirty> or
2088	C<cf::db_sync>.
2089		3081
2090	=item $value = cf::db_get $family => $key	3082	$facedata->{version} == 2
		3083	or cf::cleanup "$path: version mismatch, cannot proceed.";
2091		3084
2092	Returns a single value from the database	3085	# patch in the exptable
2093		3086	$facedata->{resource}{"res/exp_table"} = {
2094	=item cf::db_put $family => $hashref	3087	type => FT_RSRC,
2095		3088	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2096	Stores the given family hashref into the database. Updates are delayed, if
2097	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2098
2099	=item cf::db_put $family => $key => $value
2100
2101	Stores the given C<$value> in the family hash. Updates are delayed, if you
2102	want the data to be synced to disk immediately, use C<cf::db_sync>.
2103
2104	=item cf::db_dirty
2105
2106	Marks the database as dirty, to be updated at a later time.
2107
2108	=item cf::db_sync
2109
2110	Immediately write the database to disk I<if it is dirty>.
2111
2112	=cut
2113
2114	our $DB;
2115
2116	{
2117	my $path = cf::localdir . "/database.pst";
2118
2119	sub db_load() {
2120	$DB = stat $path ? Storable::retrieve $path : { };
2121	}
2122
2123	my $pid;
2124
2125	sub db_save() {
2126	waitpid $pid, 0 if $pid;
2127	if (0 == ($pid = fork)) {
2128	$DB->{_meta}{version} = 1;
2129	Storable::nstore $DB, "$path~";
2130	rename "$path~", $path;
2131	cf::_exit 0 if defined $pid;
2132	}
2133	}
2134
2135	my $dirty;
2136
2137	sub db_sync() {
2138	db_save if $dirty;
2139	undef $dirty;
2140	}
2141
2142	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2143	db_sync;
2144	});	3089	};
		3090	cf::cede_to_tick;
2145		3091
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}	3092	{
		3093	my $faces = $facedata->{faceinfo};
2150		3094
2151	sub db_get($;$) {	3095	while (my ($face, $info) = each %$faces) {
2152	@_ >= 2	3096	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2153	? $DB->{$_[0]}{$_[1]}	3097	cf::face::set_visibility $idx, $info->{visibility};
2154	: ($DB->{$_[0]} ||= { })	3098	cf::face::set_magicmap $idx, $info->{magicmap};
2155	}	3099	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3100	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2156		3101
2157	sub db_put($$;$) {	3102	cf::cede_to_tick;
2158	if (@_ >= 3) {
2159	$DB->{$_[0]}{$_[1]} = $_[2];
2160	} else {
2161	$DB->{$_[0]} = $_[1];
2162	}
2163	db_dirty;
2164	}
2165
2166	cf::global->attach (
2167	prio => 10000,
2168	on_cleanup => sub {
2169	db_sync;
2170	},	3103	}
2171	);
2172	}
2173		3104
2174	#############################################################################	3105	while (my ($face, $info) = each %$faces) {
2175	# the server's main()	3106	next unless $info->{smooth};
		3107	my $idx = cf::face::find $face
		3108	or next;
		3109	if (my $smooth = cf::face::find $info->{smooth}) {
		3110	cf::face::set_smooth $idx, $smooth;
		3111	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3112	} else {
		3113	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3114	}
2176		3115
2177	sub cfg_load {	3116	cf::cede_to_tick;
		3117	}
		3118	}
		3119
		3120	{
		3121	my $anims = $facedata->{animinfo};
		3122
		3123	while (my ($anim, $info) = each %$anims) {
		3124	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3125	cf::cede_to_tick;
		3126	}
		3127
		3128	cf::anim::invalidate_all; # d'oh
		3129	}
		3130
		3131	{
		3132	# TODO: for gcfclient pleasure, we should give resources
		3133	# that gcfclient doesn't grok a >10000 face index.
		3134	my $res = $facedata->{resource};
		3135
		3136	my $soundconf = delete $res->{"res/sound.conf"};
		3137
		3138	while (my ($name, $info) = each %$res) {
		3139	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3140	my $data;
		3141
		3142	if ($info->{type} & 1) {
		3143	# prepend meta info
		3144
		3145	my $meta = $enc->encode ({
		3146	name => $name,
		3147	%{ $info->{meta} || {} },
		3148	});
		3149
		3150	$data = pack "(w/a*)*", $meta, $info->{data};
		3151	} else {
		3152	$data = $info->{data};
		3153	}
		3154
		3155	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3156	cf::face::set_type $idx, $info->{type};
		3157
		3158	cf::cede_to_tick;
		3159	}
		3160
		3161	if ($soundconf) {
		3162	$soundconf = $enc->decode (delete $soundconf->{data});
		3163
		3164	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3165	my $sound = $soundconf->{compat}[$_]
		3166	or next;
		3167
		3168	my $face = cf::face::find "sound/$sound->[1]";
		3169	cf::sound::set $sound->[0] => $face;
		3170	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3171	}
		3172
		3173	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3174	my $face = cf::face::find "sound/$v";
		3175	cf::sound::set $k => $face;
		3176	}
		3177	}
		3178	}
		3179
		3180	1
		3181	}
		3182
		3183	register_exticmd fx_want => sub {
		3184	my ($ns, $want) = @_;
		3185
		3186	while (my ($k, $v) = each %$want) {
		3187	$ns->fx_want ($k, $v);
		3188	}
		3189	};
		3190
		3191	sub reload_regions {
		3192	# HACK to clear player env face cache, we need some signal framework
		3193	# for this (global event?)
		3194	%ext::player_env::MUSIC_FACE_CACHE = ();
		3195
		3196	load_resource_file "$MAPDIR/regions"
		3197	or die "unable to load regions file\n";
		3198
		3199	for (cf::region::list) {
		3200	$_->{match} = qr/$_->{match}/
		3201	if exists $_->{match};
		3202	}
		3203	}
		3204
		3205	sub reload_facedata {
		3206	load_facedata "$DATADIR/facedata"
		3207	or die "unable to load facedata\n";
		3208	}
		3209
		3210	sub reload_archetypes {
		3211	load_resource_file "$DATADIR/archetypes"
		3212	or die "unable to load archetypes\n";
		3213	#d# NEED to laod twice to resolve forward references
		3214	# this really needs to be done in an extra post-pass
		3215	# (which needs to be synchronous, so solve it differently)
		3216	load_resource_file "$DATADIR/archetypes"
		3217	or die "unable to load archetypes\n";
		3218	}
		3219
		3220	sub reload_treasures {
		3221	load_resource_file "$DATADIR/treasures"
		3222	or die "unable to load treasurelists\n";
		3223	}
		3224
		3225	sub reload_resources {
		3226	warn "reloading resource files...\n";
		3227
		3228	reload_regions;
		3229	reload_facedata;
		3230	#reload_archetypes;#d#
		3231	reload_archetypes;
		3232	reload_treasures;
		3233
		3234	warn "finished reloading resource files\n";
		3235	}
		3236
		3237	sub init {
		3238	reload_resources;
		3239	}
		3240
		3241	sub reload_config {
2178	open my $fh, "<:utf8", cf::confdir . "/config"	3242	open my $fh, "<:utf8", "$CONFDIR/config"
2179	or return;	3243	or return;
2180		3244
2181	local $/;	3245	local $/;
2182	*CFG = YAML::Syck::Load <$fh>;	3246	*CFG = YAML::Syck::Load <$fh>;
2183		3247
…		…
2197		3261
2198	sub main {	3262	sub main {
2199	# we must not ever block the main coroutine	3263	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	3264	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3265	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3266	(async {
		3267	$Coro::current->{desc} = "IDLE BUG HANDLER";
2202	async { Event::one_event };	3268	Event::one_event;
		3269	})->prio (Coro::PRIO_MAX);
2203	};	3270	};
2204		3271
2205	cfg_load;	3272	reload_config;
2206	db_load;	3273	db_init;
2207	load_extensions;	3274	load_extensions;
		3275
		3276	$TICK_WATCHER->start;
2208	Event::loop;	3277	Event::loop;
2209	}	3278	}
2210		3279
2211	#############################################################################	3280	#############################################################################
2212	# initialisation	3281	# initialisation and cleanup
2213		3282
		3283	# install some emergency cleanup handlers
		3284	BEGIN {
		3285	for my $signal (qw(INT HUP TERM)) {
		3286	Event->signal (
		3287	reentrant => 0,
		3288	data => WF_AUTOCANCEL,
		3289	signal => $signal,
		3290	prio => 0,
		3291	cb => sub {
		3292	cf::cleanup "SIG$signal";
		3293	},
		3294	);
		3295	}
		3296	}
		3297
		3298	sub write_runtime {
		3299	my $runtime = "$LOCALDIR/runtime";
		3300
		3301	# first touch the runtime file to show we are still running:
		3302	# the fsync below can take a very very long time.
		3303
		3304	IO::AIO::aio_utime $runtime, undef, undef;
		3305
		3306	my $guard = cf::lock_acquire "write_runtime";
		3307
		3308	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3309	or return;
		3310
		3311	my $value = $cf::RUNTIME + 90 + 10;
		3312	# 10 is the runtime save interval, for a monotonic clock
		3313	# 60 allows for the watchdog to kill the server.
		3314
		3315	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3316	and return;
		3317
		3318	# always fsync - this file is important
		3319	aio_fsync $fh
		3320	and return;
		3321
		3322	# touch it again to show we are up-to-date
		3323	aio_utime $fh, undef, undef;
		3324
		3325	close $fh
		3326	or return;
		3327
		3328	aio_rename "$runtime~", $runtime
		3329	and return;
		3330
		3331	warn "runtime file written.\n";
		3332
		3333	1
		3334	}
		3335
		3336	sub emergency_save() {
		3337	my $freeze_guard = cf::freeze_mainloop;
		3338
		3339	warn "enter emergency perl save\n";
		3340
		3341	cf::sync_job {
		3342	# use a peculiar iteration method to avoid tripping on perl
		3343	# refcount bugs in for. also avoids problems with players
		3344	# and maps saved/destroyed asynchronously.
		3345	warn "begin emergency player save\n";
		3346	for my $login (keys %cf::PLAYER) {
		3347	my $pl = $cf::PLAYER{$login} or next;
		3348	$pl->valid or next;
		3349	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3350	$pl->save;
		3351	}
		3352	warn "end emergency player save\n";
		3353
		3354	warn "begin emergency map save\n";
		3355	for my $path (keys %cf::MAP) {
		3356	my $map = $cf::MAP{$path} or next;
		3357	$map->valid or next;
		3358	$map->save;
		3359	}
		3360	warn "end emergency map save\n";
		3361
		3362	warn "begin emergency database checkpoint\n";
		3363	BDB::db_env_txn_checkpoint $DB_ENV;
		3364	warn "end emergency database checkpoint\n";
		3365	};
		3366
		3367	warn "leave emergency perl save\n";
		3368	}
		3369
		3370	sub post_cleanup {
		3371	my ($make_core) = @_;
		3372
		3373	warn Carp::longmess "post_cleanup backtrace"
		3374	if $make_core;
		3375	}
		3376
2214	sub reload() {	3377	sub do_reload_perl() {
2215	# can/must only be called in main	3378	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	3379	if ($Coro::current != $Coro::main) {
2217	warn "can only reload from main coroutine\n";	3380	warn "can only reload from main coroutine";
2218	return;	3381	return;
2219	}	3382	}
2220		3383
2221	warn "reloading...";	3384	warn "reloading...";
2222		3385
2223	my $guard = freeze_mainloop;	3386	warn "entering sync_job";
		3387
		3388	cf::sync_job {
		3389	cf::write_runtime; # external watchdog should not bark
2224	cf::emergency_save;	3390	cf::emergency_save;
		3391	cf::write_runtime; # external watchdog should not bark
2225		3392
2226	eval {	3393	warn "syncing database to disk";
		3394	BDB::db_env_txn_checkpoint $DB_ENV;
		3395
2227	# if anything goes wrong in here, we should simply crash as we already saved	3396	# if anything goes wrong in here, we should simply crash as we already saved
2228		3397
2229	# cancel all watchers	3398	warn "cancelling all WF_AUTOCANCEL watchers";
2230	for (Event::all_watchers) {	3399	for (Event::all_watchers) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;	3400	$_->cancel if $_->data & WF_AUTOCANCEL;
2232	}	3401	}
2233		3402
		3403	warn "flushing outstanding aio requests";
		3404	for (;;) {
		3405	BDB::flush;
		3406	IO::AIO::flush;
		3407	Coro::cede_notself;
		3408	last unless IO::AIO::nreqs || BDB::nreqs;
		3409	warn "iterate...";
		3410	}
		3411
		3412	++$RELOAD;
		3413
2234	# cancel all extension coros	3414	warn "cancelling all extension coros";
2235	$_->cancel for values %EXT_CORO;	3415	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	3416	%EXT_CORO = ();
2237		3417
2238	# unload all extensions	3418	warn "removing commands";
2239	for (@exts) {	3419	%COMMAND = ();
		3420
		3421	warn "removing ext/exti commands";
		3422	%EXTCMD = ();
		3423	%EXTICMD = ();
		3424
		3425	warn "unloading/nuking all extensions";
		3426	for my $pkg (@EXTS) {
2240	warn "unloading <$_>";	3427	warn "... unloading $pkg";
2241	unload_extension $_;	3428
		3429	if (my $cb = $pkg->can ("unload")) {
		3430	eval {
		3431	$cb->($pkg);
		3432	1
		3433	} or warn "$pkg unloaded, but with errors: $@";
2242	}	3434	}
2243		3435
		3436	warn "... nuking $pkg";
		3437	Symbol::delete_package $pkg;
		3438	}
		3439
2244	# unload all modules loaded from $LIBDIR	3440	warn "unloading all perl modules loaded from $LIBDIR";
2245	while (my ($k, $v) = each %INC) {	3441	while (my ($k, $v) = each %INC) {
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3442	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2247		3443
2248	warn "removing <$k>";	3444	warn "... unloading $k";
2249	delete $INC{$k};	3445	delete $INC{$k};
2250		3446
2251	$k =~ s/\.pm$//;	3447	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;	3448	$k =~ s/\//::/g;
2253		3449
…		…
2256	}	3452	}
2257		3453
2258	Symbol::delete_package $k;	3454	Symbol::delete_package $k;
2259	}	3455	}
2260		3456
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	3457	warn "getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	3458	Symbol::delete_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3459	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		3460
2269	# remove register_script_function callbacks
2270	# TODO
2271
2272	# unload cf.pm "a bit"	3461	warn "unloading cf.pm \"a bit\"";
2273	delete $INC{"cf.pm"};	3462	delete $INC{"cf.pm"};
		3463	delete $INC{"cf/pod.pm"};
2274		3464
2275	# don't, removes xs symbols, too,	3465	# don't, removes xs symbols, too,
2276	# and global variables created in xs	3466	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	3467	#Symbol::delete_package __PACKAGE__;
2278		3468
2279	# reload cf.pm	3469	warn "unload completed, starting to reload now";
		3470
2280	warn "reloading cf.pm";	3471	warn "reloading cf.pm";
2281	require cf;	3472	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3473	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2283		3474
2284	# load config and database again	3475	warn "loading config and database again";
2285	cf::cfg_load;	3476	cf::reload_config;
2286	cf::db_load;
2287		3477
2288	# load extensions
2289	warn "load extensions";	3478	warn "loading extensions";
2290	cf::load_extensions;	3479	cf::load_extensions;
2291		3480
2292	# reattach attachments to objects	3481	warn "reattaching attachments to objects/players";
2293	warn "reattach";	3482	_global_reattach; # objects, sockets
2294	_global_reattach;	3483	warn "reattaching attachments to maps";
2295	reattach $_ for values %MAP;	3484	reattach $_ for values %MAP;
2296	};	3485	warn "reattaching attachments to players";
		3486	reattach $_ for values %PLAYER;
2297		3487
2298	if ($@) {	3488	warn "leaving sync_job";
		3489
		3490	1
		3491	} or do {
2299	warn $@;	3492	warn $@;
2300	warn "error while reloading, exiting.";	3493	warn "error while reloading, exiting.";
2301	exit 1;	3494	exit 1;
2302	}	3495	};
2303		3496
2304	warn "reloaded successfully";	3497	warn "reloaded";
2305	};	3498	};
2306		3499
2307	#############################################################################	3500	our $RELOAD_WATCHER; # used only during reload
2308		3501
2309	unless ($LINK_MAP) {	3502	sub reload_perl() {
2310	$LINK_MAP = cf::map::new;	3503	# doing reload synchronously and two reloads happen back-to-back,
		3504	# coro crashes during coro_state_free->destroy here.
2311		3505
2312	$LINK_MAP->width (41);	3506	$RELOAD_WATCHER ||= Event->timer (
2313	$LINK_MAP->height (41);	3507	reentrant => 0,
2314	$LINK_MAP->alloc;
2315	$LINK_MAP->path ("{link}");
2316	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2317	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2318
2319	# dirty hack because... archetypes are not yet loaded
2320	Event->timer (
2321	after => 10,	3508	after => 0,
		3509	data => WF_AUTOCANCEL,
2322	cb => sub {	3510	cb => sub {
2323	$_[0]->w->cancel;	3511	do_reload_perl;
2324		3512	undef $RELOAD_WATCHER;
2325	# provide some exits "home"
2326	my $exit = cf::object::new "exit";
2327
2328	$exit->slaying ($EMERGENCY_POSITION->[0]);
2329	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2330	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2331
2332	$LINK_MAP->insert ($exit->clone, 19, 19);
2333	$LINK_MAP->insert ($exit->clone, 19, 20);
2334	$LINK_MAP->insert ($exit->clone, 19, 21);
2335	$LINK_MAP->insert ($exit->clone, 20, 19);
2336	$LINK_MAP->insert ($exit->clone, 20, 21);
2337	$LINK_MAP->insert ($exit->clone, 21, 19);
2338	$LINK_MAP->insert ($exit->clone, 21, 20);
2339	$LINK_MAP->insert ($exit->clone, 21, 21);
2340
2341	$exit->destroy;
2342	});	3513	},
2343		3514	);
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	3515	}
2349
2350	register "<global>", __PACKAGE__;
2351		3516
2352	register_command "reload" => sub {	3517	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	3518	my ($who, $arg) = @_;
2354		3519
2355	if ($who->flag (FLAG_WIZ)) {	3520	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	3521	$who->message ("reloading server.");
		3522	async {
		3523	$Coro::current->{desc} = "perl_reload";
		3524	reload_perl;
		3525	};
2359	}	3526	}
2360	};	3527	};
2361		3528
2362	unshift @INC, $LIBDIR;	3529	unshift @INC, $LIBDIR;
		3530
		3531	my $bug_warning = 0;
		3532
		3533	our @WAIT_FOR_TICK;
		3534	our @WAIT_FOR_TICK_BEGIN;
		3535
		3536	sub wait_for_tick {
		3537	return unless $TICK_WATCHER->is_active;
		3538	return if $Coro::current == $Coro::main;
		3539
		3540	my $signal = new Coro::Signal;
		3541	push @WAIT_FOR_TICK, $signal;
		3542	$signal->wait;
		3543	}
		3544
		3545	sub wait_for_tick_begin {
		3546	return unless $TICK_WATCHER->is_active;
		3547	return if $Coro::current == $Coro::main;
		3548
		3549	my $signal = new Coro::Signal;
		3550	push @WAIT_FOR_TICK_BEGIN, $signal;
		3551	$signal->wait;
		3552	}
2363		3553
2364	$TICK_WATCHER = Event->timer (	3554	$TICK_WATCHER = Event->timer (
2365	reentrant => 0,	3555	reentrant => 0,
		3556	parked => 1,
2366	prio => 0,	3557	prio => 0,
2367	at => $NEXT_TICK || $TICK,	3558	at => $NEXT_TICK || $TICK,
2368	data => WF_AUTOCANCEL,	3559	data => WF_AUTOCANCEL,
2369	cb => sub {	3560	cb => sub {
		3561	if ($Coro::current != $Coro::main) {
		3562	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3563	unless ++$bug_warning > 10;
		3564	return;
		3565	}
		3566
		3567	$NOW = $tick_start = Event::time;
		3568
2370	cf::server_tick; # one server iteration	3569	cf::server_tick; # one server iteration
		3570
2371	$RUNTIME += $TICK;	3571	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;	3572	$NEXT_TICK += $TICK;
2373		3573
		3574	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3575	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3576	Coro::async_pool {
		3577	$Coro::current->{desc} = "runtime saver";
		3578	write_runtime
		3579	or warn "ERROR: unable to write runtime file: $!";
		3580	};
		3581	}
		3582
		3583	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3584	$sig->send;
		3585	}
		3586	while (my $sig = shift @WAIT_FOR_TICK) {
		3587	$sig->send;
		3588	}
		3589
		3590	$NOW = Event::time;
		3591
2374	# if we are delayed by four ticks or more, skip them all	3592	# if we are delayed by four ticks or more, skip them all
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3593	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2376		3594
2377	$TICK_WATCHER->at ($NEXT_TICK);	3595	$TICK_WATCHER->at ($NEXT_TICK);
2378	$TICK_WATCHER->start;	3596	$TICK_WATCHER->start;
		3597
		3598	$LOAD = ($NOW - $tick_start) / $TICK;
		3599	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3600
		3601	_post_tick;
2379	},	3602	},
2380	);	3603	);
2381		3604
		3605	{
		3606	BDB::min_parallel 8;
2382	IO::AIO::max_poll_time $TICK * 0.2;	3607	BDB::max_poll_time $TICK * 0.1;
2383		3608	$BDB_POLL_WATCHER = Event->io (
2384	Event->io (	3609	reentrant => 0,
2385	fd => IO::AIO::poll_fileno,	3610	fd => BDB::poll_fileno,
2386	poll => 'r',	3611	poll => 'r',
2387	prio => 5,	3612	prio => 0,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391
2392	Event->timer (
2393	data => WF_AUTOCANCEL,	3613	data => WF_AUTOCANCEL,
		3614	cb => \&BDB::poll_cb,
		3615	);
		3616
		3617	BDB::set_sync_prepare {
		3618	my $status;
		3619	my $current = $Coro::current;
		3620	(
		3621	sub {
		3622	$status = $!;
		3623	$current->ready; undef $current;
		3624	},
		3625	sub {
		3626	Coro::schedule while defined $current;
		3627	$! = $status;
		3628	},
		3629	)
		3630	};
		3631
		3632	unless ($DB_ENV) {
		3633	$DB_ENV = BDB::db_env_create;
		3634	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3635	| BDB::LOG_AUTOREMOVE, 1);
		3636	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3637	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3638
		3639	cf::sync_job {
		3640	eval {
		3641	BDB::db_env_open
		3642	$DB_ENV,
		3643	$BDBDIR,
		3644	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3645	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3646	0666;
		3647
		3648	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3649	};
		3650
		3651	cf::cleanup "db_env_open(db): $@" if $@;
		3652	};
		3653	}
		3654
		3655	$BDB_DEADLOCK_WATCHER = Event->timer (
2394	after => 0,	3656	after => 3,
2395	interval => 10,	3657	interval => 1,
		3658	hard => 1,
		3659	prio => 0,
		3660	data => WF_AUTOCANCEL,
2396	cb => sub {	3661	cb => sub {
2397	(Coro::unblock_sub {	3662	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2398	write_runtime	3663	},
2399	or warn "ERROR: unable to write runtime file: $!";	3664	);
		3665	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3666	after => 11,
		3667	interval => 60,
		3668	hard => 1,
		3669	prio => 0,
		3670	data => WF_AUTOCANCEL,
		3671	cb => sub {
		3672	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3673	},
		3674	);
		3675	$BDB_TRICKLE_WATCHER = Event->timer (
		3676	after => 5,
		3677	interval => 10,
		3678	hard => 1,
		3679	prio => 0,
		3680	data => WF_AUTOCANCEL,
		3681	cb => sub {
		3682	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3683	},
		3684	);
		3685	}
		3686
		3687	{
		3688	IO::AIO::min_parallel 8;
		3689
		3690	undef $Coro::AIO::WATCHER;
		3691	IO::AIO::max_poll_time $TICK * 0.1;
		3692	$AIO_POLL_WATCHER = Event->io (
		3693	reentrant => 0,
		3694	data => WF_AUTOCANCEL,
		3695	fd => IO::AIO::poll_fileno,
		3696	poll => 'r',
		3697	prio => 0,
		3698	cb => \&IO::AIO::poll_cb,
		3699	);
		3700	}
		3701
		3702	my $_log_backtrace;
		3703
		3704	sub _log_backtrace {
		3705	my ($msg, @addr) = @_;
		3706
		3707	$msg =~ s/\n//;
		3708
		3709	# limit the # of concurrent backtraces
		3710	if ($_log_backtrace < 2) {
		3711	++$_log_backtrace;
		3712	async {
		3713	$Coro::current->{desc} = "abt $msg";
		3714
		3715	my @bt = fork_call {
		3716	@addr = map { sprintf "%x", $_ } @addr;
		3717	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3718	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3719	or die "addr2line: $!";
		3720
		3721	my @funcs;
		3722	my @res = <$fh>;
		3723	chomp for @res;
		3724	while (@res) {
		3725	my ($func, $line) = splice @res, 0, 2, ();
		3726	push @funcs, "[$func] $line";
		3727	}
		3728
		3729	@funcs
		3730	};
		3731
		3732	LOG llevInfo, "[ABT] $msg\n";
		3733	LOG llevInfo, "[ABT] $_\n" for @bt;
		3734	--$_log_backtrace;
2400	})->();	3735	};
		3736	} else {
		3737	LOG llevInfo, "[ABT] $msg\n";
		3738	LOG llevInfo, "[ABT] [suppressed]\n";
2401	},	3739	}
2402	);	3740	}
		3741
		3742	# load additional modules
		3743	use cf::pod;
2403		3744
2404	END { cf::emergency_save }	3745	END { cf::emergency_save }
2405		3746
2406	1	3747	1
2407		3748

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