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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 1.386 by root, Mon Oct 15 17:50:27 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) {
301	Coro::cede or Event::one_event;	449	Coro::cede or Event::one_event;
302	}	450	}
		451
		452	$time = Event::time - $time;
		453
		454	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		455	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		456
		457	$tick_start += $time; # do not account sync jobs to server load
303		458
304	wantarray ? @res : $res[0]	459	wantarray ? @res : $res[0]
305	} else {	460	} else {
306	# we are in another coroutine, how wonderful, everything just works	461	# we are in another coroutine, how wonderful, everything just works
307		462
…		…
309	}	464	}
310	}	465	}
311		466
312	=item $coro = cf::async_ext { BLOCK }	467	=item $coro = cf::async_ext { BLOCK }
313		468
314	Like async, but this coro is automcatially being canceled when the	469	Like async, but this coro is automatically being canceled when the
315	extension calling this is being unloaded.	470	extension calling this is being unloaded.
316		471
317	=cut	472	=cut
318		473
319	sub async_ext(&) {	474	sub async_ext(&) {
…		…
327	$EXT_CORO{$coro+0} = $coro;	482	$EXT_CORO{$coro+0} = $coro;
328		483
329	$coro	484	$coro
330	}	485	}
331		486
332	sub write_runtime {	487	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		488
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	489	Executes the given code block with the given arguments in a seperate
336	or return;	490	process, returning the results. Everything must be serialisable with
		491	Coro::Storable. May, of course, block. Note that the executed sub may
		492	never block itself or use any form of Event handling.
337		493
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	494	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		495
342	aio_fsync $fh	496	sub fork_call(&@) {
343	and return;	497	my ($cb, @args) = @_;
344		498
345	close $fh	499	# we seemingly have to make a local copy of the whole thing,
346	or return;	500	# otherwise perl prematurely frees the stuff :/
		501	# TODO: investigate and fix (likely this will be rather laborious)
347		502
348	aio_rename "$runtime~", $runtime	503	my @res = Coro::Util::fork_eval {
349	and return;	504	reset_signals;
		505	&$cb
		506	}, @args;
350		507
		508	wantarray ? @res : $res[-1]
		509	}
		510
		511	=item $value = cf::db_get $family => $key
		512
		513	Returns a single value from the environment database.
		514
		515	=item cf::db_put $family => $key => $value
		516
		517	Stores the given C<$value> in the family. It can currently store binary
		518	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		519
		520	=item $db = cf::db_table "name"
		521
		522	Create and/or open a new database table. The string must not be "db" and must be unique
		523	within each server.
		524
		525	=cut
		526
		527	sub db_table($) {
		528	my ($name) = @_;
		529	my $db = BDB::db_create $DB_ENV;
		530
		531	eval {
		532	$db->set_flags (BDB::CHKSUM);
		533
		534	utf8::encode $name;
		535	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		536	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		537	cf::cleanup "db_open(db): $!" if $!;
		538	};
		539	cf::cleanup "db_open(db): $@" if $@;
		540
		541	$db
		542	}
		543
		544	our $DB;
		545
		546	sub db_init {
		547	cf::sync_job {
		548	$DB ||= db_table "db";
		549	};
		550	}
		551
		552	sub db_get($$) {
		553	my $key = "$_[0]/$_[1]";
		554
		555	cf::sync_job {
		556	BDB::db_get $DB, undef, $key, my $data;
		557
		558	$! ? ()
		559	: $data
351	1	560	}
		561	}
		562
		563	sub db_put($$$) {
		564	BDB::dbreq_pri 4;
		565	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		566	}
		567
		568	=item cf::cache $id => [$paths...], $processversion => $process
		569
		570	Generic caching function that returns the value of the resource $id,
		571	caching and regenerating as required.
		572
		573	This function can block.
		574
		575	=cut
		576
		577	sub cache {
		578	my ($id, $src, $processversion, $process) = @_;
		579
		580	my $meta =
		581	join "\x00",
		582	$processversion,
		583	map {
		584	aio_stat $_
		585	and Carp::croak "$_: $!";
		586
		587	($_, (stat _)[7,9])
		588	} @$src;
		589
		590	my $dbmeta = db_get cache => "$id/meta";
		591	if ($dbmeta ne $meta) {
		592	# changed, we may need to process
		593
		594	my @data;
		595	my $md5;
		596
		597	for (0 .. $#$src) {
		598	0 <= aio_load $src->[$_], $data[$_]
		599	or Carp::croak "$src->[$_]: $!";
		600	}
		601
		602	# if processing is expensive, check
		603	# checksum first
		604	if (1) {
		605	$md5 =
		606	join "\x00",
		607	$processversion,
		608	map {
		609	cf::cede_to_tick;
		610	($src->[$_], Digest::MD5::md5_hex $data[$_])
		611	} 0.. $#$src;
		612
		613
		614	my $dbmd5 = db_get cache => "$id/md5";
		615	if ($dbmd5 eq $md5) {
		616	db_put cache => "$id/meta", $meta;
		617
		618	return db_get cache => "$id/data";
		619	}
		620	}
		621
		622	my $t1 = Time::HiRes::time;
		623	my $data = $process->(\@data);
		624	my $t2 = Time::HiRes::time;
		625
		626	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		627
		628	db_put cache => "$id/data", $data;
		629	db_put cache => "$id/md5" , $md5;
		630	db_put cache => "$id/meta", $meta;
		631
		632	return $data;
		633	}
		634
		635	db_get cache => "$id/data"
		636	}
		637
		638	=item cf::datalog type => key => value, ...
		639
		640	Log a datalog packet of the given type with the given key-value pairs.
		641
		642	=cut
		643
		644	sub datalog($@) {
		645	my ($type, %kv) = @_;
		646	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	647	}
353		648
354	=back	649	=back
355		650
356	=cut	651	=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		652
480	#############################################################################	653	#############################################################################
481		654
482	=head2 ATTACHABLE OBJECTS	655	=head2 ATTACHABLE OBJECTS
483		656
…		…
485	attach callbacks/event handlers (a collection of which is called an "attachment")	658	attach callbacks/event handlers (a collection of which is called an "attachment")
486	to it. All such attachable objects support the following methods.	659	to it. All such attachable objects support the following methods.
487		660
488	In the following description, CLASS can be any of C<global>, C<object>	661	In the following description, CLASS can be any of C<global>, C<object>
489	C<player>, C<client> or C<map> (i.e. the attachable objects in	662	C<player>, C<client> or C<map> (i.e. the attachable objects in
490	crossfire+).	663	Crossfire TRT).
491		664
492	=over 4	665	=over 4
493		666
494	=item $attachable->attach ($attachment, key => $value...)	667	=item $attachable->attach ($attachment, key => $value...)
495		668
…		…
609	our @CB_TYPE = (); # registry for type (cf-object class) based events	782	our @CB_TYPE = (); # registry for type (cf-object class) based events
610	our @CB_MAP = ();	783	our @CB_MAP = ();
611		784
612	my %attachment;	785	my %attachment;
613		786
		787	sub cf::attachable::thawer_merge {
		788	# simply override everything except _meta
		789	local $_[0]{_meta};
		790	%{$_[0]} = %{$_[1]};
		791	}
		792
614	sub _attach_cb($$$$) {	793	sub _attach_cb($$$$) {
615	my ($registry, $event, $prio, $cb) = @_;	794	my ($registry, $event, $prio, $cb) = @_;
616		795
617	use sort 'stable';	796	use sort 'stable';
618		797
…		…
652	$registry = $CB_TYPE[$object_type] ||= [];	831	$registry = $CB_TYPE[$object_type] ||= [];
653		832
654	} elsif ($type eq "subtype") {	833	} elsif ($type eq "subtype") {
655	defined $object_type or Carp::croak "subtype specified without type";	834	defined $object_type or Carp::croak "subtype specified without type";
656	my $object_subtype = shift @arg;	835	my $object_subtype = shift @arg;
657	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	836	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
658		837
659	} elsif ($type eq "package") {	838	} elsif ($type eq "package") {
660	my $pkg = shift @arg;	839	my $pkg = shift @arg;
661		840
662	while (my ($name, $id) = each %cb_id) {	841	while (my ($name, $id) = each %cb_id) {
…		…
691	_attach $registry, $klass, @attach;	870	_attach $registry, $klass, @attach;
692	}	871	}
693		872
694	$obj->{$name} = \%arg;	873	$obj->{$name} = \%arg;
695	} else {	874	} else {
696	warn "object uses attachment '$name' that is not available, postponing.\n";	875	warn "object uses attachment '$name' which is not available, postponing.\n";
697	}	876	}
698		877
699	$obj->{_attachment}{$name} = undef;	878	$obj->{_attachment}{$name} = undef;
700	}	879	}
701		880
…		…
703	if (ref $_[0]) {	882	if (ref $_[0]) {
704	_object_attach @_;	883	_object_attach @_;
705	} else {	884	} else {
706	_attach shift->_attach_registry, @_;	885	_attach shift->_attach_registry, @_;
707	}	886	}
		887	_recalc_want;
708	};	888	};
709		889
710	# all those should be optimised	890	# all those should be optimised
711	sub cf::attachable::detach {	891	sub cf::attachable::detach {
712	my ($obj, $name) = @_;	892	my ($obj, $name) = @_;
…		…
715	delete $obj->{_attachment}{$name};	895	delete $obj->{_attachment}{$name};
716	reattach ($obj);	896	reattach ($obj);
717	} else {	897	} else {
718	Carp::croak "cannot, currently, detach class attachments";	898	Carp::croak "cannot, currently, detach class attachments";
719	}	899	}
		900	_recalc_want;
720	};	901	};
721		902
722	sub cf::attachable::attached {	903	sub cf::attachable::attached {
723	my ($obj, $name) = @_;	904	my ($obj, $name) = @_;
724		905
…		…
739	";	920	";
740	die if $@;	921	die if $@;
741	}	922	}
742		923
743	our $override;	924	our $override;
744	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	925	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
745		926
746	sub override {	927	sub override {
747	$override = 1;	928	$override = 1;
748	@invoke_results = ();	929	@INVOKE_RESULTS = (@_);
749	}	930	}
750		931
751	sub do_invoke {	932	sub do_invoke {
752	my $event = shift;	933	my $event = shift;
753	my $callbacks = shift;	934	my $callbacks = shift;
754		935
755	@invoke_results = ();	936	@INVOKE_RESULTS = ();
756		937
757	local $override;	938	local $override;
758		939
759	for (@$callbacks) {	940	for (@$callbacks) {
760	eval { &{$_->[1]} };	941	eval { &{$_->[1]} };
…		…
777		958
778	Generate an object-specific event with the given arguments.	959	Generate an object-specific event with the given arguments.
779		960
780	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	961	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
781	removed in future versions), and there is no public API to access override	962	removed in future versions), and there is no public API to access override
782	results (if you must, access C<@cf::invoke_results> directly).	963	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
783		964
784	=back	965	=back
785		966
786	=cut	967	=cut
787		968
788	#############################################################################	969	#############################################################################
789	# object support	970	# object support
		971
		972	sub _object_equal($$);
		973	sub _object_equal($$) {
		974	my ($a, $b) = @_;
		975
		976	return 0 unless (ref $a) eq (ref $b);
		977
		978	if ("HASH" eq ref $a) {
		979	my @ka = keys %$a;
		980	my @kb = keys %$b;
		981
		982	return 0 if @ka != @kb;
		983
		984	for (0 .. $#ka) {
		985	return 0 unless $ka[$_] eq $kb[$_];
		986	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		987	}
		988
		989	} elsif ("ARRAY" eq ref $a) {
		990
		991	return 0 if @$a != @$b;
		992
		993	for (0 .. $#$a) {
		994	return 0 unless _object_equal $a->[$_], $b->[$_];
		995	}
		996
		997	} elsif ($a ne $b) {
		998	return 0;
		999	}
		1000
		1001	1
		1002	}
		1003
		1004	our $SLOW_MERGES;#d#
		1005	sub _can_merge {
		1006	my ($ob1, $ob2) = @_;
		1007
		1008	++$SLOW_MERGES;#d#
		1009
		1010	# we do the slow way here
		1011	return _object_equal $ob1, $ob2
		1012	}
790		1013
791	sub reattach {	1014	sub reattach {
792	# basically do the same as instantiate, without calling instantiate	1015	# basically do the same as instantiate, without calling instantiate
793	my ($obj) = @_;	1016	my ($obj) = @_;
		1017
		1018	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
794		1019
795	my $registry = $obj->registry;	1020	my $registry = $obj->registry;
796		1021
797	@$registry = ();	1022	@$registry = ();
798		1023
…		…
839	sub object_freezer_save {	1064	sub object_freezer_save {
840	my ($filename, $rdata, $objs) = @_;	1065	my ($filename, $rdata, $objs) = @_;
841		1066
842	sync_job {	1067	sync_job {
843	if (length $$rdata) {	1068	if (length $$rdata) {
		1069	utf8::decode (my $decname = $filename);
844	warn sprintf "saving %s (%d,%d)\n",	1070	warn sprintf "saving %s (%d,%d)\n",
845	$filename, length $$rdata, scalar @$objs;	1071	$decname, length $$rdata, scalar @$objs;
846		1072
847	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1073	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
848	chmod SAVE_MODE, $fh;	1074	chmod SAVE_MODE, $fh;
849	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1075	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
850	aio_fsync $fh;	1076	aio_fsync $fh if $cf::USE_FSYNC;
851	close $fh;	1077	close $fh;
852		1078
853	if (@$objs) {	1079	if (@$objs) {
854	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1080	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
855	chmod SAVE_MODE, $fh;	1081	chmod SAVE_MODE, $fh;
856	my $data = Storable::nfreeze { version => 1, objs => $objs };	1082	my $data = Coro::Storable::blocking_nfreeze { version => 1, objs => $objs };
857	aio_write $fh, 0, (length $data), $data, 0;	1083	aio_write $fh, 0, (length $data), $data, 0;
858	aio_fsync $fh;	1084	aio_fsync $fh if $cf::USE_FSYNC;
859	close $fh;	1085	close $fh;
860	aio_rename "$filename.pst~", "$filename.pst";	1086	aio_rename "$filename.pst~", "$filename.pst";
861	}	1087	}
862	} else {	1088	} else {
863	aio_unlink "$filename.pst";	1089	aio_unlink "$filename.pst";
…		…
869	}	1095	}
870	} else {	1096	} else {
871	aio_unlink $filename;	1097	aio_unlink $filename;
872	aio_unlink "$filename.pst";	1098	aio_unlink "$filename.pst";
873	}	1099	}
874	}	1100	};
875	}	1101	}
876		1102
877	sub object_freezer_as_string {	1103	sub object_freezer_as_string {
878	my ($rdata, $objs) = @_;	1104	my ($rdata, $objs) = @_;
879		1105
…		…
891	or return;	1117	or return;
892		1118
893	unless (aio_stat "$filename.pst") {	1119	unless (aio_stat "$filename.pst") {
894	(aio_load "$filename.pst", $av) >= 0	1120	(aio_load "$filename.pst", $av) >= 0
895	or return;	1121	or return;
896	$av = eval { (Storable::thaw $av)->{objs} };
897	}
898		1122
		1123	my $st = eval { Coro::Storable::thaw $av }
		1124	|| eval { my $guard = Coro::Storable::guard; Storable::thaw $av }; #d# compatibility, remove
		1125	$av = $st->{objs};
		1126	}
		1127
		1128	utf8::decode (my $decname = $filename);
899	warn sprintf "loading %s (%d)\n",	1129	warn sprintf "loading %s (%d,%d)\n",
900	$filename, length $data, scalar @{$av || []};#d#	1130	$decname, length $data, scalar @{$av || []};
		1131
901	return ($data, $av);	1132	($data, $av)
902	}	1133	}
		1134
		1135	=head2 COMMAND CALLBACKS
		1136
		1137	=over 4
		1138
		1139	=cut
903		1140
904	#############################################################################	1141	#############################################################################
905	# command handling &c	1142	# command handling &c
906		1143
907	=item cf::register_command $name => \&callback($ob,$args);	1144	=item cf::register_command $name => \&callback($ob,$args);
…		…
920	push @{ $COMMAND{$name} }, [$caller, $cb];	1157	push @{ $COMMAND{$name} }, [$caller, $cb];
921	}	1158	}
922		1159
923	=item cf::register_extcmd $name => \&callback($pl,$packet);	1160	=item cf::register_extcmd $name => \&callback($pl,$packet);
924		1161
925	Register a callbackf ro execution when the client sends an extcmd packet.	1162	Register a callback for execution when the client sends an (synchronous)
		1163	extcmd packet. Ext commands will be processed in the order they are
		1164	received by the server, like other user commands. The first argument is
		1165	the logged-in player. Ext commands can only be processed after a player
		1166	has logged in successfully.
926		1167
927	If the callback returns something, it is sent back as if reply was being	1168	If the callback returns something, it is sent back as if reply was being
928	called.	1169	called.
929		1170
		1171	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1172
		1173	Register a callback for execution when the client sends an (asynchronous)
		1174	exticmd packet. Exti commands are processed by the server as soon as they
		1175	are received, i.e. out of order w.r.t. other commands. The first argument
		1176	is a client socket. Exti commands can be received anytime, even before
		1177	log-in.
		1178
		1179	If the callback returns something, it is sent back as if reply was being
		1180	called.
		1181
930	=cut	1182	=cut
931		1183
932	sub register_extcmd {	1184	sub register_extcmd {
933	my ($name, $cb) = @_;	1185	my ($name, $cb) = @_;
934		1186
935	my $caller = caller;
936	#warn "registering extcmd '$name' to '$caller'";
937
938	$EXTCMD{$name} = [$cb, $caller];	1187	$EXTCMD{$name} = $cb;
		1188	}
		1189
		1190	sub register_exticmd {
		1191	my ($name, $cb) = @_;
		1192
		1193	$EXTICMD{$name} = $cb;
939	}	1194	}
940		1195
941	cf::player->attach (	1196	cf::player->attach (
942	on_command => sub {	1197	on_command => sub {
943	my ($pl, $name, $params) = @_;	1198	my ($pl, $name, $params) = @_;
…		…
952	cf::override;	1207	cf::override;
953	},	1208	},
954	on_extcmd => sub {	1209	on_extcmd => sub {
955	my ($pl, $buf) = @_;	1210	my ($pl, $buf) = @_;
956		1211
957	my $msg = eval { from_json $buf };	1212	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
958		1213
959	if (ref $msg) {	1214	if (ref $msg) {
		1215	my ($type, $reply, @payload) =
		1216	"ARRAY" eq ref $msg
		1217	? @$msg
		1218	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1219
		1220	my @reply;
		1221
960	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1222	if (my $cb = $EXTCMD{$type}) {
961	if (my %reply = $cb->[0]->($pl, $msg)) {	1223	@reply = $cb->($pl, @payload);
962	$pl->ext_reply ($msg->{msgid}, %reply);
963	}
964	}	1224	}
		1225
		1226	$pl->ext_reply ($reply, @reply)
		1227	if $reply;
		1228
965	} else {	1229	} else {
966	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1230	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
967	}	1231	}
968		1232
969	cf::override;	1233	cf::override;
970	},	1234	},
971	);	1235	);
972		1236
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 {	1237	sub load_extensions {
		1238	cf::sync_job {
		1239	my %todo;
		1240
1050	for my $ext (<$LIBDIR/*.ext>) {	1241	for my $path (<$LIBDIR/*.ext>) {
1051	next unless -r $ext;	1242	next unless -r $path;
1052	eval {	1243
1053	load_extension $ext;	1244	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1245	my $base = $1;
		1246	my $pkg = $1;
		1247	$pkg =~ s/[^[:word:]]/_/g;
		1248	$pkg = "ext::$pkg";
		1249
		1250	open my $fh, "<:utf8", $path
		1251	or die "$path: $!";
		1252
		1253	my $source = do { local $/; <$fh> };
		1254
		1255	my %ext = (
		1256	path => $path,
		1257	base => $base,
		1258	pkg => $pkg,
		1259	);
		1260
		1261	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1262	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1263
		1264	$ext{source} =
		1265	"package $pkg; use strict; use utf8;\n"
		1266	. "#line 1 \"$path\"\n{\n"
		1267	. $source
		1268	. "\n};\n1";
		1269
		1270	$todo{$base} = \%ext;
		1271	}
		1272
		1273	my %done;
		1274	while (%todo) {
		1275	my $progress;
		1276
		1277	while (my ($k, $v) = each %todo) {
		1278	for (split /,\s*/, $v->{meta}{depends}) {
		1279	goto skip
		1280	unless exists $done{$_};
		1281	}
		1282
		1283	warn "... loading '$k' into '$v->{pkg}'\n";
		1284
		1285	unless (eval $v->{source}) {
		1286	my $msg = $@ ? "$v->{path}: $@\n"
		1287	: "$v->{base}: extension inactive.\n";
		1288
		1289	if (exists $v->{meta}{mandatory}) {
		1290	warn $msg;
		1291	warn "mandatory extension failed to load, exiting.\n";
		1292	exit 1;
		1293	}
		1294
		1295	warn $msg;
		1296	}
		1297
		1298	$done{$k} = delete $todo{$k};
		1299	push @EXTS, $v->{pkg};
		1300	$progress = 1;
1054	1	1301	}
1055	} or warn "$ext not loaded: $@";	1302
		1303	skip:
		1304	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1305	unless $progress;
		1306	}
1056	}	1307	};
1057	}	1308	}
1058		1309
1059	#############################################################################	1310	#############################################################################
1060	# load/save/clean perl data associated with a map
1061		1311
1062	*cf::mapsupport::on_clean = sub {	1312	=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		1313
1097	=head2 CORE EXTENSIONS	1314	=head2 CORE EXTENSIONS
1098		1315
1099	Functions and methods that extend core crossfire objects.	1316	Functions and methods that extend core crossfire objects.
1100		1317
…		…
1106		1323
1107	=head3 cf::player	1324	=head3 cf::player
1108		1325
1109	=over 4	1326	=over 4
1110		1327
		1328	=item cf::player::num_playing
		1329
		1330	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1331
		1332	=cut
		1333
		1334	sub num_playing {
		1335	scalar grep
		1336	$_->ob->map
		1337	&& !$_->hidden
		1338	&& !$_->ob->flag (cf::FLAG_WIZ),
		1339	cf::player::list
		1340	}
		1341
1111	=item cf::player::find $login	1342	=item cf::player::find $login
1112		1343
1113	Returns the given player object, loading it if necessary (might block).	1344	Returns the given player object, loading it if necessary (might block).
1114		1345
1115	=cut	1346	=cut
1116		1347
1117	sub playerdir($) {	1348	sub playerdir($) {
1118	cf::localdir	1349	"$PLAYERDIR/"
1119	. "/"
1120	. cf::playerdir
1121	. "/"
1122	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1350	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1123	}	1351	}
1124		1352
1125	sub path($) {	1353	sub path($) {
1126	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1354	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1127		1355
1128	(playerdir $login) . "/$login.pl"	1356	(playerdir $login) . "/playerdata"
1129	}	1357	}
1130		1358
1131	sub find_active($) {	1359	sub find_active($) {
1132	$cf::PLAYER{$_[0]}	1360	$cf::PLAYER{$_[0]}
1133	and $cf::PLAYER{$_[0]}->active	1361	and $cf::PLAYER{$_[0]}->active
…		…
1136		1364
1137	sub exists($) {	1365	sub exists($) {
1138	my ($login) = @_;	1366	my ($login) = @_;
1139		1367
1140	$cf::PLAYER{$login}	1368	$cf::PLAYER{$login}
1141	or cf::sync_job { !aio_stat $login }	1369	or cf::sync_job { !aio_stat path $login }
1142	}	1370	}
1143		1371
1144	sub find($) {	1372	sub find($) {
1145	return $cf::PLAYER{$_[0]} || do {	1373	return $cf::PLAYER{$_[0]} || do {
1146	my $login = $_[0];	1374	my $login = $_[0];
1147		1375
1148	my $guard = cf::lock_acquire "user_find:$login";	1376	my $guard = cf::lock_acquire "user_find:$login";
1149		1377
1150	$cf::PLAYER{$_[0]} || do {	1378	$cf::PLAYER{$_[0]} || do {
1151	my $pl = load_pl path $login	1379	# rename old playerfiles to new ones
		1380	#TODO: remove when no longer required
		1381	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1382	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1383	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1384	aio_unlink +(playerdir $login) . "/$login.pl";
		1385
		1386	my $f = new_from_file cf::object::thawer path $login
1152	or return;	1387	or return;
		1388
		1389	my $pl = cf::player::load_pl $f
		1390	or return;
		1391	local $cf::PLAYER_LOADING{$login} = $pl;
		1392	$f->resolve_delayed_derefs;
1153	$cf::PLAYER{$login} = $pl	1393	$cf::PLAYER{$login} = $pl
1154	}	1394	}
1155	}	1395	}
1156	}	1396	}
1157		1397
…		…
1167		1407
1168	aio_mkdir playerdir $pl, 0770;	1408	aio_mkdir playerdir $pl, 0770;
1169	$pl->{last_save} = $cf::RUNTIME;	1409	$pl->{last_save} = $cf::RUNTIME;
1170		1410
1171	$pl->save_pl ($path);	1411	$pl->save_pl ($path);
1172	Coro::cede;	1412	cf::cede_to_tick;
1173	}	1413	}
1174		1414
1175	sub new($) {	1415	sub new($) {
1176	my ($login) = @_;	1416	my ($login) = @_;
1177		1417
…		…
1183	$cf::PLAYER{$login} = $self;	1423	$cf::PLAYER{$login} = $self;
1184		1424
1185	$self	1425	$self
1186	}	1426	}
1187		1427
		1428	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1429
		1430	=cut
		1431
		1432	sub send_msg {
		1433	my $ns = shift->ns
		1434	or return;
		1435	$ns->send_msg (@_);
		1436	}
		1437
1188	=item $pl->quit_character	1438	=item $pl->quit_character
1189		1439
1190	Nukes the player without looking back. If logged in, the connection will	1440	Nukes the player without looking back. If logged in, the connection will
1191	be destroyed. May block for a long time.	1441	be destroyed. May block for a long time.
1192		1442
1193	=cut	1443	=cut
1194		1444
1195	sub quit_character {	1445	sub quit_character {
1196	my ($pl) = @_;	1446	my ($pl) = @_;
		1447
		1448	my $name = $pl->ob->name;
1197		1449
1198	$pl->{deny_save} = 1;	1450	$pl->{deny_save} = 1;
1199	$pl->password ("*"); # this should lock out the player until we nuked the dir	1451	$pl->password ("*"); # this should lock out the player until we nuked the dir
1200		1452
1201	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1453	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1206	my $path = playerdir $pl;	1458	my $path = playerdir $pl;
1207	my $temp = "$path~$cf::RUNTIME~deleting~";	1459	my $temp = "$path~$cf::RUNTIME~deleting~";
1208	aio_rename $path, $temp;	1460	aio_rename $path, $temp;
1209	delete $cf::PLAYER{$pl->ob->name};	1461	delete $cf::PLAYER{$pl->ob->name};
1210	$pl->destroy;	1462	$pl->destroy;
		1463
		1464	my $prefix = qr<^~\Q$name\E/>;
		1465
		1466	# nuke player maps
		1467	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1468
1211	IO::AIO::aio_rmtree $temp;	1469	IO::AIO::aio_rmtree $temp;
		1470	}
		1471
		1472	=item $pl->kick
		1473
		1474	Kicks a player out of the game. This destroys the connection.
		1475
		1476	=cut
		1477
		1478	sub kick {
		1479	my ($pl, $kicker) = @_;
		1480
		1481	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1482	$pl->killer ("kicked");
		1483	$pl->ns->destroy;
1212	}	1484	}
1213		1485
1214	=item cf::player::list_logins	1486	=item cf::player::list_logins
1215		1487
1216	Returns am arrayref of all valid playernames in the system, can take a	1488	Returns am arrayref of all valid playernames in the system, can take a
1217	while and may block, so not sync_job-capable, ever.	1489	while and may block, so not sync_job-capable, ever.
1218		1490
1219	=cut	1491	=cut
1220		1492
1221	sub list_logins {	1493	sub list_logins {
1222	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1494	my $dirs = aio_readdir $PLAYERDIR
1223	or return [];	1495	or return [];
1224		1496
1225	my @logins;	1497	my @logins;
1226		1498
1227	for my $login (@$dirs) {	1499	for my $login (@$dirs) {
		1500	my $path = path $login;
		1501
		1502	# a .pst is a dead give-away for a valid player
		1503	unless (-e "$path.pst") {
1228	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1504	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1229	aio_read $fh, 0, 512, my $buf, 0 or next;	1505	aio_read $fh, 0, 512, my $buf, 0 or next;
1230	$buf !~ /^password -------------$/ or next; # official not-valid tag	1506	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1507	}
1231		1508
1232	utf8::decode $login;	1509	utf8::decode $login;
1233	push @logins, $login;	1510	push @logins, $login;
1234	}	1511	}
1235		1512
1236	\@logins	1513	\@logins
1237	}	1514	}
1238		1515
1239	=item $player->maps	1516	=item $player->maps
1240		1517
1241	Returns an arrayref of cf::path's of all maps that are private for this	1518	Returns an arrayref of map paths that are private for this
1242	player. May block.	1519	player. May block.
1243		1520
1244	=cut	1521	=cut
1245		1522
1246	sub maps($) {	1523	sub maps($) {
1247	my ($pl) = @_;	1524	my ($pl) = @_;
		1525
		1526	$pl = ref $pl ? $pl->ob->name : $pl;
1248		1527
1249	my $files = aio_readdir playerdir $pl	1528	my $files = aio_readdir playerdir $pl
1250	or return;	1529	or return;
1251		1530
1252	my @paths;	1531	my @paths;
1253		1532
1254	for (@$files) {	1533	for (@$files) {
1255	utf8::decode $_;	1534	utf8::decode $_;
1256	next if /\.(?:pl|pst)$/;	1535	next if /\.(?:pl|pst)$/;
1257	next unless /^$PATH_SEP/;	1536	next unless /^$PATH_SEP/o;
1258		1537
1259	s/$PATH_SEP/\//g;	1538	push @paths, cf::map::normalise "~$pl/$_";
1260	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1261	}	1539	}
1262		1540
1263	\@paths	1541	\@paths
1264	}	1542	}
1265		1543
		1544	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1545
		1546	Expand crossfire pod fragments into protocol xml.
		1547
		1548	=cut
		1549
		1550	sub expand_cfpod {
		1551	((my $self), (local $_)) = @_;
		1552
		1553	# escape & and <
		1554	s/&/&amp;/g;
		1555	s/(?<![BIUGHT])</&lt;/g;
		1556
		1557	# this is buggy, it needs to properly take care of nested <'s
		1558
		1559	1 while
		1560	# replace B<>, I<>, U<> etc.
		1561	s/B<([^\>]*)>/<b>$1<\/b>/
		1562	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1563	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1564	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1565	# replace G<male|female> tags
		1566	|| s{G<([^>|]*)\|([^>]*)>}{
		1567	$self->gender ? $2 : $1
		1568	}ge
		1569	# replace H<hint text>
		1570	|| s{H<([^\>]*)>}
		1571	{
		1572	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1573	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1574	"")
		1575	[$self->{hintmode}]
		1576	}ge;
		1577
		1578	# create single paragraphs (very hackish)
		1579	s/(?<=\S)\n(?=\w)/ /g;
		1580
		1581	# compress some whitespace
		1582	s/\s+\n/\n/g; # ws line-ends
		1583	s/\n\n+/\n/g; # double lines
		1584	s/^\n+//; # beginning lines
		1585	s/\n+$//; # ending lines
		1586
		1587	$_
		1588	}
		1589
		1590	sub hintmode {
		1591	$_[0]{hintmode} = $_[1] if @_ > 1;
		1592	$_[0]{hintmode}
		1593	}
		1594
1266	=item $player->ext_reply ($msgid, $msgtype, %msg)	1595	=item $player->ext_reply ($msgid, @msg)
1267		1596
1268	Sends an ext reply to the player.	1597	Sends an ext reply to the player.
1269		1598
1270	=cut	1599	=cut
1271		1600
1272	sub ext_reply($$$%) {	1601	sub ext_reply($$@) {
1273	my ($self, $id, %msg) = @_;	1602	my ($self, $id, @msg) = @_;
1274		1603
1275	$msg{msgid} = $id;	1604	$self->ns->ext_reply ($id, @msg)
1276
1277	$self->send ("ext " . cf::to_json \%msg);
1278	}	1605	}
1279		1606
1280	package cf;	1607	=item $player->ext_msg ($type, @msg)
		1608
		1609	Sends an ext event to the client.
		1610
		1611	=cut
		1612
		1613	sub ext_msg($$@) {
		1614	my ($self, $type, @msg) = @_;
		1615
		1616	$self->ns->ext_msg ($type, @msg);
		1617	}
		1618
		1619	=head3 cf::region
		1620
		1621	=over 4
		1622
		1623	=cut
		1624
		1625	package cf::region;
		1626
		1627	=item cf::region::find_by_path $path
		1628
		1629	Tries to decuce the likely region for a map knowing only its path.
		1630
		1631	=cut
		1632
		1633	sub find_by_path($) {
		1634	my ($path) = @_;
		1635
		1636	my ($match, $specificity);
		1637
		1638	for my $region (list) {
		1639	if ($region->{match} && $path =~ $region->{match}) {
		1640	($match, $specificity) = ($region, $region->specificity)
		1641	if $region->specificity > $specificity;
		1642	}
		1643	}
		1644
		1645	$match
		1646	}
1281		1647
1282	=back	1648	=back
1283
1284		1649
1285	=head3 cf::map	1650	=head3 cf::map
1286		1651
1287	=over 4	1652	=over 4
1288		1653
…		…
1291	package cf::map;	1656	package cf::map;
1292		1657
1293	use Fcntl;	1658	use Fcntl;
1294	use Coro::AIO;	1659	use Coro::AIO;
1295		1660
		1661	use overload
		1662	'""' => \&as_string,
		1663	fallback => 1;
		1664
1296	our $MAX_RESET = 3600;	1665	our $MAX_RESET = 3600;
1297	our $DEFAULT_RESET = 3000;	1666	our $DEFAULT_RESET = 3000;
1298		1667
1299	sub generate_random_map {	1668	sub generate_random_map {
1300	my ($path, $rmp) = @_;	1669	my ($self, $rmp) = @_;
1301
1302	# mit "rum" bekleckern, nicht	1670	# mit "rum" bekleckern, nicht
1303	cf::map::_create_random_map	1671	$self->_create_random_map (
1304	$path,
1305	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1672	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1306	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1673	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1307	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1674	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1308	$rmp->{exit_on_final_map},	1675	$rmp->{exit_on_final_map},
1309	$rmp->{xsize}, $rmp->{ysize},	1676	$rmp->{xsize}, $rmp->{ysize},
1310	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1677	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1311	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1678	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1312	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1679	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1313	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1680	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1314	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1681	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1315	(cf::region::find $rmp->{region})	1682	(cf::region::find $rmp->{region}), $rmp->{custom}
		1683	)
		1684	}
		1685
		1686	=item cf::map->register ($regex, $prio)
		1687
		1688	Register a handler for the map path matching the given regex at the
		1689	givne priority (higher is better, built-in handlers have priority 0, the
		1690	default).
		1691
		1692	=cut
		1693
		1694	sub register {
		1695	my (undef, $regex, $prio) = @_;
		1696	my $pkg = caller;
		1697
		1698	no strict;
		1699	push @{"$pkg\::ISA"}, __PACKAGE__;
		1700
		1701	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1702	}
		1703
		1704	# also paths starting with '/'
		1705	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1706
		1707	sub thawer_merge {
		1708	my ($self, $merge) = @_;
		1709
		1710	# we have to keep some variables in memory intact
		1711	local $self->{path};
		1712	local $self->{load_path};
		1713
		1714	$self->SUPER::thawer_merge ($merge);
		1715	}
		1716
		1717	sub normalise {
		1718	my ($path, $base) = @_;
		1719
		1720	$path = "$path"; # make sure its a string
		1721
		1722	$path =~ s/\.map$//;
		1723
		1724	# map plan:
		1725	#
		1726	# /! non-realised random map exit (special hack!)
		1727	# {... are special paths that are not being touched
		1728	# ?xxx/... are special absolute paths
		1729	# ?random/... random maps
		1730	# /... normal maps
		1731	# ~user/... per-player map of a specific user
		1732
		1733	$path =~ s/$PATH_SEP/\//go;
		1734
		1735	# treat it as relative path if it starts with
		1736	# something that looks reasonable
		1737	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1738	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1739
		1740	$base =~ s{[^/]+/?$}{};
		1741	$path = "$base/$path";
		1742	}
		1743
		1744	for ($path) {
		1745	redo if s{//}{/};
		1746	redo if s{/\.?/}{/};
		1747	redo if s{/[^/]+/\.\./}{/};
		1748	}
		1749
		1750	$path
		1751	}
		1752
		1753	sub new_from_path {
		1754	my (undef, $path, $base) = @_;
		1755
		1756	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1757
		1758	$path = normalise $path, $base;
		1759
		1760	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1761	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1762	my $self = bless cf::map::new, $pkg;
		1763	$self->{path} = $path; $self->path ($path);
		1764	$self->init; # pass $1 etc.
		1765	return $self;
		1766	}
		1767	}
		1768
		1769	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1770	()
		1771	}
		1772
		1773	sub init {
		1774	my ($self) = @_;
		1775
		1776	$self
		1777	}
		1778
		1779	sub as_string {
		1780	my ($self) = @_;
		1781
		1782	"$self->{path}"
		1783	}
		1784
		1785	# the displayed name, this is a one way mapping
		1786	sub visible_name {
		1787	&as_string
		1788	}
		1789
		1790	# the original (read-only) location
		1791	sub load_path {
		1792	my ($self) = @_;
		1793
		1794	"$MAPDIR/$self->{path}.map"
		1795	}
		1796
		1797	# the temporary/swap location
		1798	sub save_path {
		1799	my ($self) = @_;
		1800
		1801	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1802	"$TMPDIR/$path.map"
		1803	}
		1804
		1805	# the unique path, undef == no special unique path
		1806	sub uniq_path {
		1807	my ($self) = @_;
		1808
		1809	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1810	"$UNIQUEDIR/$path"
1316	}	1811	}
1317		1812
1318	# and all this just because we cannot iterate over	1813	# and all this just because we cannot iterate over
1319	# all maps in C++...	1814	# all maps in C++...
1320	sub change_all_map_light {	1815	sub change_all_map_light {
…		…
1322		1817
1323	$_->change_map_light ($change)	1818	$_->change_map_light ($change)
1324	for grep $_->outdoor, values %cf::MAP;	1819	for grep $_->outdoor, values %cf::MAP;
1325	}	1820	}
1326		1821
		1822	sub decay_objects {
		1823	my ($self) = @_;
		1824
		1825	return if $self->{deny_reset};
		1826
		1827	$self->do_decay_objects;
		1828	}
		1829
		1830	sub unlink_save {
		1831	my ($self) = @_;
		1832
		1833	utf8::encode (my $save = $self->save_path);
		1834	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1835	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1836	}
		1837
1327	sub try_load_header($) {	1838	sub load_header_from($) {
1328	my ($path) = @_;	1839	my ($self, $path) = @_;
1329		1840
1330	utf8::encode $path;	1841	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	1842	my $f = new_from_file cf::object::thawer $path
1332	or return;	1843	or return;
1333		1844
1334	my $map = cf::map::new	1845	$self->_load_header ($f)
1335	or return;	1846	or return;
1336		1847
1337	# for better error messages only, will be overwritten	1848	local $MAP_LOADING{$self->{path}} = $self;
1338	$map->path ($path);	1849	$f->resolve_delayed_derefs;
1339		1850
1340	$map->load_header ($path)	1851	$self->{load_path} = $path;
		1852
		1853	1
		1854	}
		1855
		1856	sub load_header_orig {
		1857	my ($self) = @_;
		1858
		1859	$self->load_header_from ($self->load_path)
		1860	}
		1861
		1862	sub load_header_temp {
		1863	my ($self) = @_;
		1864
		1865	$self->load_header_from ($self->save_path)
		1866	}
		1867
		1868	sub prepare_temp {
		1869	my ($self) = @_;
		1870
		1871	$self->last_access ((delete $self->{last_access})
		1872	|| $cf::RUNTIME); #d#
		1873	# safety
		1874	$self->{instantiate_time} = $cf::RUNTIME
		1875	if $self->{instantiate_time} > $cf::RUNTIME;
		1876	}
		1877
		1878	sub prepare_orig {
		1879	my ($self) = @_;
		1880
		1881	$self->{load_original} = 1;
		1882	$self->{instantiate_time} = $cf::RUNTIME;
		1883	$self->last_access ($cf::RUNTIME);
		1884	$self->instantiate;
		1885	}
		1886
		1887	sub load_header {
		1888	my ($self) = @_;
		1889
		1890	if ($self->load_header_temp) {
		1891	$self->prepare_temp;
		1892	} else {
		1893	$self->load_header_orig
1341	or return;	1894	or return;
		1895	$self->prepare_orig;
		1896	}
1342		1897
1343	$map->{load_path} = $path;	1898	$self->{deny_reset} = 1
		1899	if $self->no_reset;
1344		1900
1345	$map	1901	$self->default_region (cf::region::find_by_path $self->{path})
		1902	unless $self->default_region;
		1903
		1904	1
1346	}	1905	}
1347		1906
1348	sub find;	1907	sub find;
1349	sub find {	1908	sub find {
1350	my ($path, $origin) = @_;	1909	my ($path, $origin) = @_;
1351		1910
1352	#warn "find<$path,$origin>\n";#d#
1353
1354	$path = new cf::path $path, $origin && $origin->path;	1911	$path = normalise $path, $origin && $origin->path;
1355	my $key = $path->as_string;
1356		1912
		1913	cf::lock_wait "map_data:$path";#d#remove
1357	cf::lock_wait "map_find:$key";	1914	cf::lock_wait "map_find:$path";
1358		1915
1359	$cf::MAP{$key} || do {	1916	$cf::MAP{$path} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	1917	my $guard1 = cf::lock_acquire "map_find:$path";
		1918	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1361		1919
1362	# do it the slow way	1920	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;	1921	or return;
1381		1922
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;	1923	$map->{last_save} = $cf::RUNTIME;
1394		1924
1395	Coro::cede;	1925	$map->load_header
		1926	or return;
1396		1927
1397	if ($map->should_reset) {	1928	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1929	# doing this can freeze the server in a sync job, obviously
		1930	#$cf::WAIT_FOR_TICK->wait;
		1931	undef $guard1;
		1932	undef $guard2;
1398	$map->reset;	1933	$map->reset;
1399	undef $guard;
1400	$map = find $path	1934	return find $path;
1401	or return;
1402	}	1935	}
1403		1936
1404	$cf::MAP{$key} = $map	1937	$cf::MAP{$path} = $map
1405	}	1938	}
1406	}	1939	}
		1940
		1941	sub pre_load { }
		1942	sub post_load { }
1407		1943
1408	sub load {	1944	sub load {
1409	my ($self) = @_;	1945	my ($self) = @_;
1410		1946
		1947	local $self->{deny_reset} = 1; # loading can take a long time
		1948
1411	my $path = $self->{path};	1949	my $path = $self->{path};
		1950
		1951	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1952	my $guard = cf::lock_acquire "map_data:$path";
1413		1953
		1954	return unless $self->valid;
1414	return if $self->in_memory != cf::MAP_SWAPPED;	1955	return unless $self->in_memory == cf::MAP_SWAPPED;
1415		1956
1416	$self->in_memory (cf::MAP_LOADING);	1957	$self->in_memory (cf::MAP_LOADING);
1417		1958
1418	$self->alloc;	1959	$self->alloc;
1419	$self->load_objects ($self->{load_path}, 1)	1960
		1961	$self->pre_load;
		1962	cf::cede_to_tick;
		1963
		1964	my $f = new_from_file cf::object::thawer $self->{load_path};
		1965	$f->skip_block;
		1966	$self->_load_objects ($f)
1420	or return;	1967	or return;
1421		1968
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1969	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};	1970	if delete $self->{load_original};
1424		1971
1425	if (my $uniq = $path->uniq_path) {	1972	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	1973	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	1974	unless (aio_stat $uniq) {
		1975	if (my $f = new_from_file cf::object::thawer $uniq) {
1428	$self->clear_unique_items;	1976	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	1977	$self->_load_objects ($f);
		1978	$f->resolve_delayed_derefs;
		1979	}
1430	}	1980	}
1431	}	1981	}
1432		1982
1433	Coro::cede;	1983	$f->resolve_delayed_derefs;
1434		1984
		1985	cf::cede_to_tick;
1435	# now do the right thing for maps	1986	# now do the right thing for maps
1436	$self->link_multipart_objects;	1987	$self->link_multipart_objects;
1437
1438	if ($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)	1988	$self->difficulty ($self->estimate_difficulty)
1447	unless $self->difficulty;	1989	unless $self->difficulty;
		1990	cf::cede_to_tick;
		1991
		1992	unless ($self->{deny_activate}) {
		1993	$self->decay_objects;
		1994	$self->fix_auto_apply;
		1995	$self->update_buttons;
		1996	cf::cede_to_tick;
		1997	$self->set_darkness_map;
		1998	cf::cede_to_tick;
1448	$self->activate;	1999	$self->activate;
1449	}	2000	}
1450		2001
1451	Coro::cede;	2002	$self->{last_save} = $cf::RUNTIME;
		2003	$self->last_access ($cf::RUNTIME);
1452		2004
1453	$self->in_memory (cf::MAP_IN_MEMORY);	2005	$self->in_memory (cf::MAP_IN_MEMORY);
		2006	}
		2007
		2008	$self->post_load;
		2009	}
		2010
		2011	sub customise_for {
		2012	my ($self, $ob) = @_;
		2013
		2014	return find "~" . $ob->name . "/" . $self->{path}
		2015	if $self->per_player;
		2016
		2017	# return find "?party/" . $ob->name . "/" . $self->{path}
		2018	# if $self->per_party;
		2019
		2020	$self
		2021	}
		2022
		2023	# find and load all maps in the 3x3 area around a map
		2024	sub load_neighbours {
		2025	my ($map) = @_;
		2026
		2027	my @neigh; # diagonal neighbours
		2028
		2029	for (0 .. 3) {
		2030	my $neigh = $map->tile_path ($_)
		2031	or next;
		2032	$neigh = find $neigh, $map
		2033	or next;
		2034	$neigh->load;
		2035
		2036	push @neigh,
		2037	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2038	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2039	}
		2040
		2041	for (grep defined $_->[0], @neigh) {
		2042	my ($path, $origin) = @$_;
		2043	my $neigh = find $path, $origin
		2044	or next;
		2045	$neigh->load;
		2046	}
1454	}	2047	}
1455		2048
1456	sub find_sync {	2049	sub find_sync {
1457	my ($path, $origin) = @_;	2050	my ($path, $origin) = @_;
1458		2051
1459	cf::sync_job { cf::map::find $path, $origin }	2052	cf::sync_job { find $path, $origin }
1460	}	2053	}
1461		2054
1462	sub do_load_sync {	2055	sub do_load_sync {
1463	my ($map) = @_;	2056	my ($map) = @_;
1464		2057
		2058	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2059	if $Coro::current == $Coro::main;
		2060
1465	cf::sync_job { $map->load };	2061	cf::sync_job { $map->load };
		2062	}
		2063
		2064	our %MAP_PREFETCH;
		2065	our $MAP_PREFETCHER = undef;
		2066
		2067	sub find_async {
		2068	my ($path, $origin, $load) = @_;
		2069
		2070	$path = normalise $path, $origin && $origin->{path};
		2071
		2072	if (my $map = $cf::MAP{$path}) {
		2073	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2074	}
		2075
		2076	$MAP_PREFETCH{$path} |= $load;
		2077
		2078	$MAP_PREFETCHER ||= cf::async {
		2079	$Coro::current->{desc} = "map prefetcher";
		2080
		2081	while (%MAP_PREFETCH) {
		2082	while (my ($k, $v) = each %MAP_PREFETCH) {
		2083	if (my $map = find $k) {
		2084	$map->load if $v;
		2085	}
		2086
		2087	delete $MAP_PREFETCH{$k};
		2088	}
		2089	}
		2090	undef $MAP_PREFETCHER;
		2091	};
		2092	$MAP_PREFETCHER->prio (6);
		2093
		2094	()
1466	}	2095	}
1467		2096
1468	sub save {	2097	sub save {
1469	my ($self) = @_;	2098	my ($self) = @_;
1470		2099
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1472		2101
1473	$self->{last_save} = $cf::RUNTIME;	2102	$self->{last_save} = $cf::RUNTIME;
1474		2103
1475	return unless $self->dirty;	2104	return unless $self->dirty;
1476		2105
1477	my $save = $self->{path}->save_path; utf8::encode $save;	2106	my $save = $self->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2107	my $uniq = $self->uniq_path; utf8::encode $uniq;
1479		2108
1480	$self->{load_path} = $save;	2109	$self->{load_path} = $save;
1481		2110
1482	return if $self->{deny_save};	2111	return if $self->{deny_save};
1483		2112
1484	local $self->{last_access} = $self->last_access;#d#	2113	local $self->{last_access} = $self->last_access;#d#
1485		2114
1486	cf::async {	2115	cf::async {
		2116	$Coro::current->{desc} = "map player save";
1487	$_->contr->save for $self->players;	2117	$_->contr->save for $self->players;
1488	};	2118	};
1489		2119
1490	if ($uniq) {	2120	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2121	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);	2122	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {	2123	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2124	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}	2125	}
1496	}	2126	}
1497		2127
1498	sub swap_out {	2128	sub swap_out {
1499	my ($self) = @_;	2129	my ($self) = @_;
1500		2130
1501	# save first because save cedes	2131	# save first because save cedes
1502	$self->save;	2132	$self->save;
1503		2133
1504	my $lock = cf::lock_acquire "map_data:" . $self->path;	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1505		2135
1506	return if $self->players;	2136	return if $self->players;
1507	return if $self->in_memory != cf::MAP_IN_MEMORY;	2137	return if $self->in_memory != cf::MAP_IN_MEMORY;
1508	return if $self->{deny_save};	2138	return if $self->{deny_save};
1509		2139
		2140	$self->in_memory (cf::MAP_SWAPPED);
		2141
		2142	$self->deactivate;
		2143	$_->clear_links_to ($self) for values %cf::MAP;
1510	$self->clear;	2144	$self->clear;
1511	$self->in_memory (cf::MAP_SWAPPED);
1512	}	2145	}
1513		2146
1514	sub reset_at {	2147	sub reset_at {
1515	my ($self) = @_;	2148	my ($self) = @_;
1516		2149
1517	# TODO: safety, remove and allow resettable per-player maps	2150	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};
1519	return 1e99 if $self->{deny_reset};	2151	return 1e99 if $self->{deny_reset};
1520		2152
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2153	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2154	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		2155
…		…
1528	my ($self) = @_;	2160	my ($self) = @_;
1529		2161
1530	$self->reset_at <= $cf::RUNTIME	2162	$self->reset_at <= $cf::RUNTIME
1531	}	2163	}
1532		2164
1533	sub unlink_save {
1534	my ($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	$self->save;
1552	}
1553
1554	sub reset {	2165	sub reset {
1555	my ($self) = @_;	2166	my ($self) = @_;
1556		2167
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	2168	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		2169
1559	return if $self->players;	2170	return if $self->players;
1560	return if $self->{path}{user_rel};#d#
1561		2171
1562	warn "resetting map ", $self->path;#d#	2172	warn "resetting map ", $self->path;
		2173
		2174	$self->in_memory (cf::MAP_SWAPPED);
		2175
		2176	# need to save uniques path
		2177	unless ($self->{deny_save}) {
		2178	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2179
		2180	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2181	if $uniq;
		2182	}
1563		2183
1564	delete $cf::MAP{$self->path};	2184	delete $cf::MAP{$self->path};
1565		2185
		2186	$self->deactivate;
1566	$_->clear_links_to ($self) for values %cf::MAP;	2187	$_->clear_links_to ($self) for values %cf::MAP;
		2188	$self->clear;
1567		2189
1568	$self->unlink_save;	2190	$self->unlink_save;
1569	$self->destroy;	2191	$self->destroy;
1570	}	2192	}
1571		2193
1572	my $nuke_counter = "aaaa";	2194	my $nuke_counter = "aaaa";
1573		2195
1574	sub nuke {	2196	sub nuke {
1575	my ($self) = @_;	2197	my ($self) = @_;
1576		2198
		2199	{
		2200	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2201
		2202	delete $cf::MAP{$self->path};
		2203
		2204	$self->unlink_save;
		2205
		2206	bless $self, "cf::map";
		2207	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	2208	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	2209	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	2210	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2211
		2212	$cf::MAP{$self->path} = $self;
		2213	}
		2214
1580	$self->reset; # polite request, might not happen	2215	$self->reset; # polite request, might not happen
1581	}	2216	}
1582		2217
1583	sub customise_for {	2218	=item $maps = cf::map::tmp_maps
1584	my ($map, $ob) = @_;
1585		2219
1586	if ($map->per_player) {	2220	Returns an arrayref with all map paths of currently instantiated and saved
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2221	maps. May block.
		2222
		2223	=cut
		2224
		2225	sub tmp_maps() {
1588	}	2226	[
1589		2227	map {
1590	$map	2228	utf8::decode $_;
		2229	/\.map$/
		2230	? normalise $_
		2231	: ()
		2232	} @{ aio_readdir $TMPDIR or [] }
		2233	]
1591	}	2234	}
1592		2235
1593	sub emergency_save {	2236	=item $maps = cf::map::random_maps
1594	my $freeze_guard = cf::freeze_mainloop;
1595		2237
1596	warn "enter emergency perl save\n";	2238	Returns an arrayref with all map paths of currently instantiated and saved
		2239	random maps. May block.
1597		2240
1598	cf::sync_job {	2241	=cut
1599	warn "begin emergency player save\n";
1600	$_->save for values %cf::PLAYER;
1601	warn "end emergency player save\n";
1602		2242
1603	warn "begin emergency map save\n";	2243	sub random_maps() {
1604	$_->save for values %cf::MAP;	2244	[
1605	warn "end emergency map save\n";	2245	map {
1606	};	2246	utf8::decode $_;
		2247	/\.map$/
		2248	? normalise "?random/$_"
		2249	: ()
		2250	} @{ aio_readdir $RANDOMDIR or [] }
		2251	]
		2252	}
1607		2253
1608	warn "leave emergency perl save\n";	2254	=item cf::map::unique_maps
		2255
		2256	Returns an arrayref of paths of all shared maps that have
		2257	instantiated unique items. May block.
		2258
		2259	=cut
		2260
		2261	sub unique_maps() {
		2262	[
		2263	map {
		2264	utf8::decode $_;
		2265	/\.map$/
		2266	? normalise $_
		2267	: ()
		2268	} @{ aio_readdir $UNIQUEDIR or [] }
		2269	]
1609	}	2270	}
1610		2271
1611	package cf;	2272	package cf;
1612		2273
1613	=back	2274	=back
1614		2275
		2276	=head3 cf::object
		2277
		2278	=cut
		2279
		2280	package cf::object;
		2281
		2282	=over 4
		2283
		2284	=item $ob->inv_recursive
		2285
		2286	Returns the inventory of the object _and_ their inventories, recursively.
		2287
		2288	=cut
		2289
		2290	sub inv_recursive_;
		2291	sub inv_recursive_ {
		2292	map { $_, inv_recursive_ $_->inv } @_
		2293	}
		2294
		2295	sub inv_recursive {
		2296	inv_recursive_ inv $_[0]
		2297	}
		2298
		2299	=item $ref = $ob->ref
		2300
		2301	creates and returns a persistent reference to an objetc that can be stored as a string.
		2302
		2303	=item $ob = cf::object::deref ($refstring)
		2304
		2305	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2306	even if the object actually exists. May block.
		2307
		2308	=cut
		2309
		2310	sub deref {
		2311	my ($ref) = @_;
		2312
		2313	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2314	my ($uuid, $name) = ($1, $2);
		2315	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2316	or return;
		2317	$pl->ob->uuid eq $uuid
		2318	or return;
		2319
		2320	$pl->ob
		2321	} else {
		2322	warn "$ref: cannot resolve object reference\n";
		2323	undef
		2324	}
		2325	}
		2326
		2327	package cf;
		2328
		2329	=back
1615		2330
1616	=head3 cf::object::player	2331	=head3 cf::object::player
1617		2332
1618	=over 4	2333	=over 4
1619		2334
…		…
1633		2348
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2349	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2350
1636	if ($self->{record_replies}) {	2351	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2352	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2353
1638	} else {	2354	} else {
		2355	my $pl = $self->contr;
		2356
		2357	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2358	my $dialog = $pl->{npc_dialog};
		2359	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2360
		2361	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2362	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2363	$self->message ($msg, $flags);
		2364	}
1641	}	2365	}
		2366	}
		2367
		2368	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2369
		2370	=cut
		2371
		2372	sub cf::object::send_msg {
		2373	my $pl = shift->contr
		2374	or return;
		2375	$pl->send_msg (@_);
1642	}	2376	}
1643		2377
1644	=item $player_object->may ("access")	2378	=item $player_object->may ("access")
1645		2379
1646	Returns wether the given player is authorized to access resource "access"	2380	Returns wether the given player is authorized to access resource "access"
…		…
1659		2393
1660	=item $player_object->enter_link	2394	=item $player_object->enter_link
1661		2395
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2396	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2397
1664	The player should be reaosnably safe there for short amounts of time. You	2398	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.	2399	I<MUST> call C<leave_link> as soon as possible, though.
1666		2400
		2401	Will never block.
		2402
1667	=item $player_object->leave_link ($map, $x, $y)	2403	=item $player_object->leave_link ($map, $x, $y)
1668		2404
1669	Moves the player out of the specila link map onto the given map. If the	2405	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	2406	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	2407	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	2408	fails, to the emergency map position.
1673		2409
1674	Might block.	2410	Might block.
1675		2411
1676	=cut	2412	=cut
		2413
		2414	sub link_map {
		2415	unless ($LINK_MAP) {
		2416	$LINK_MAP = cf::map::find "{link}"
		2417	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2418	$LINK_MAP->load;
		2419	}
		2420
		2421	$LINK_MAP
		2422	}
1677		2423
1678	sub cf::object::player::enter_link {	2424	sub cf::object::player::enter_link {
1679	my ($self) = @_;	2425	my ($self) = @_;
1680		2426
1681	$self->deactivate_recursive;	2427	$self->deactivate_recursive;
1682		2428
1683	return if $self->map == $LINK_MAP;	2429	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		2430
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2431	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	2432	if $self->map && $self->map->{path} ne "{link}";
1687		2433
1688	$self->enter_map ($LINK_MAP, 20, 20);	2434	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1689	}	2435	}
1690		2436
1691	sub cf::object::player::leave_link {	2437	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	2438	my ($self, $map, $x, $y) = @_;
		2439
		2440	return unless $self->contr->active;
1693		2441
1694	my $link_pos = delete $self->{_link_pos};	2442	my $link_pos = delete $self->{_link_pos};
1695		2443
1696	unless ($map) {	2444	unless ($map) {
1697	# restore original map position	2445	# restore original map position
…		…
1711	# use -1 or undef as default coordinates, not 0, 0	2459	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	2460	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	2461	if $x <=0 && $y <= 0;
1714		2462
1715	$map->load;	2463	$map->load;
		2464	$map->load_neighbours;
1716		2465
1717	return unless $self->contr->active;	2466	return unless $self->contr->active;
1718	$self->activate_recursive;	2467	$self->activate_recursive;
		2468
		2469	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1719	$self->enter_map ($map, $x, $y);	2470	$self->enter_map ($map, $x, $y);
1720	}	2471	}
1721		2472
1722	cf::player->attach (	2473	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1723	on_logout => sub {
1724	my ($pl) = @_;
1725		2474
1726	# abort map switching before logout	2475	Moves the player to the given map-path and coordinates by first freezing
1727	if ($pl->ob->{_link_pos}) {	2476	her, loading and preparing them map, calling the provided $check callback
1728	cf::sync_job {	2477	that has to return the map if sucecssful, and then unfreezes the player on
1729	$pl->ob->leave_link	2478	the new (success) or old (failed) map position. In either case, $done will
1730	};	2479	be called at the end of this process.
1731	}
1732	},
1733	on_login => sub {
1734	my ($pl) = @_;
1735		2480
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	2481	=cut
		2482
		2483	our $GOTOGEN;
1757		2484
1758	sub cf::object::player::goto {	2485	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	2486	my ($self, $path, $x, $y, $check, $done) = @_;
1760		2487
1761	$path = new cf::path $path;	2488	# do generation counting so two concurrent goto's will be executed in-order
1762	$path ne "/" or Carp::cluck ("oy");#d#	2489	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		2490
1764	$self->enter_link;	2491	$self->enter_link;
1765		2492
1766	(async {	2493	(async {
1767	my $map = cf::map::find $path->as_string;	2494	$Coro::current->{desc} = "player::goto $path $x $y";
		2495
		2496	# *tag paths override both path and x|y
		2497	if ($path =~ /^\*(.*)$/) {
		2498	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2499	my $ob = $obs[rand @obs];
		2500
		2501	# see if we actually can go there
		2502	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2503	$ob = $obs[rand @obs];
		2504	} else {
		2505	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2506	}
		2507	# else put us there anyways for now #d#
		2508
		2509	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2510	} else {
		2511	($path, $x, $y) = (undef, undef, undef);
		2512	}
		2513	}
		2514
		2515	my $map = eval {
		2516	my $map = defined $path ? cf::map::find $path : undef;
		2517
		2518	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	2519	$map = $map->customise_for ($self);
1769		2520	$map = $check->($map) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	2521	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2522	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2523	}
1774		2524
		2525	$map
		2526	};
		2527
		2528	if ($@) {
		2529	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2530	LOG llevError | logBacktrace, Carp::longmess $@;
		2531	}
		2532
		2533	if ($gen == $self->{_goto_generation}) {
		2534	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	2535	$self->leave_link ($map, $x, $y);
		2536	}
		2537
		2538	$done->() if $done;
1776	})->prio (1);	2539	})->prio (1);
1777	}	2540	}
1778		2541
1779	=item $player_object->enter_exit ($exit_object)	2542	=item $player_object->enter_exit ($exit_object)
1780		2543
…		…
1782		2545
1783	sub parse_random_map_params {	2546	sub parse_random_map_params {
1784	my ($spec) = @_;	2547	my ($spec) = @_;
1785		2548
1786	my $rmp = { # defaults	2549	my $rmp = { # defaults
1787	xsize => 10,	2550	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2551	ysize => (cf::rndm 15, 40),
		2552	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2553	#layout => string,
1789	};	2554	};
1790		2555
1791	for (split /\n/, $spec) {	2556	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2557	my ($k, $v) = split /\s+/, $_, 2;
1793		2558
…		…
1797	$rmp	2562	$rmp
1798	}	2563	}
1799		2564
1800	sub prepare_random_map {	2565	sub prepare_random_map {
1801	my ($exit) = @_;	2566	my ($exit) = @_;
		2567
		2568	my $guard = cf::lock_acquire "exit_prepare:$exit";
1802		2569
1803	# all this does is basically replace the /! path by	2570	# all this does is basically replace the /! path by
1804	# a new random map path (?random/...) with a seed	2571	# a new random map path (?random/...) with a seed
1805	# that depends on the exit object	2572	# that depends on the exit object
1806		2573
1807	my $rmp = parse_random_map_params $exit->msg;	2574	my $rmp = parse_random_map_params $exit->msg;
1808		2575
1809	if ($exit->map) {	2576	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2577	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2578	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2579	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2580	$rmp->{origin_y} = $exit->y;
1814	}	2581	}
1815		2582
1816	$rmp->{random_seed} ||= $exit->random_seed;	2583	$rmp->{random_seed} ||= $exit->random_seed;
1817		2584
1818	my $data = cf::to_json $rmp;	2585	my $data = cf::to_json $rmp;
1819	my $md5 = Digest::MD5::md5_hex $data;	2586	my $md5 = Digest::MD5::md5_hex $data;
		2587	my $meta = "$RANDOMDIR/$md5.meta";
1820		2588
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2589	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2590	aio_write $fh, 0, (length $data), $data, 0;
		2591	undef $fh;
		2592	aio_rename "$meta~", $meta;
1823		2593
1824	$exit->slaying ("?random/$md5");	2594	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2595	$exit->msg (undef);
1826	}	2596	}
1827	}	2597	}
…		…
1829	sub cf::object::player::enter_exit {	2599	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2600	my ($self, $exit) = @_;
1831		2601
1832	return unless $self->type == cf::PLAYER;	2602	return unless $self->type == cf::PLAYER;
1833		2603
		2604	if ($exit->slaying eq "/!") {
		2605	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2606	# the problem is that $exit might not survive long enough
		2607	# so it needs to be done right now, right here
		2608	cf::sync_job { prepare_random_map $exit };
		2609	}
		2610
		2611	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2612	my $hp = $exit->stats->hp;
		2613	my $sp = $exit->stats->sp;
		2614
1834	$self->enter_link;	2615	$self->enter_link;
1835		2616
		2617	# if exit is damned, update players death & WoR home-position
		2618	$self->contr->savebed ($slaying, $hp, $sp)
		2619	if $exit->flag (FLAG_DAMNED);
		2620
1836	(async {	2621	(async {
		2622	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2623
1837	$self->deactivate_recursive; # just to be sure	2624	$self->deactivate_recursive; # just to be sure
1838	unless (eval {	2625	unless (eval {
1839	prepare_random_map $exit	2626	$self->goto ($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		2627
1845	1;	2628	1;
1846	}) {	2629	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2630	$self->message ("Something went wrong deep within the crossfire server. "
1848	. "I'll try to bring you back to the map you were before. "	2631	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2632	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2633	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2634
1852	warn "ERROR in enter_exit: $@";	2635	warn "ERROR in enter_exit: $@";
1853	$self->leave_link;	2636	$self->leave_link;
1854	}	2637	}
1855	})->prio (1);	2638	})->prio (1);
…		…
1868		2651
1869	sub cf::client::send_drawinfo {	2652	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2653	my ($self, $text, $flags) = @_;
1871		2654
1872	utf8::encode $text;	2655	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2656	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2657	}
1875		2658
		2659	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2660
		2661	Send a drawinfo or msg packet to the client, formatting the msg for the
		2662	client if neccessary. C<$type> should be a string identifying the type of
		2663	the message, with C<log> being the default. If C<$color> is negative, suppress
		2664	the message unless the client supports the msg packet.
		2665
		2666	=cut
		2667
		2668	our %CHANNEL = (
		2669	"c/identify" => {
		2670	id => "infobox",
		2671	title => "Identify",
		2672	reply => undef,
		2673	tooltip => "Items recently identified",
		2674	},
		2675	"c/examine" => {
		2676	id => "infobox",
		2677	title => "Examine",
		2678	reply => undef,
		2679	tooltip => "Signs and other items you examined",
		2680	},
		2681	"c/lookat" => {
		2682	id => "infobox",
		2683	title => "Look",
		2684	reply => undef,
		2685	tooltip => "What you saw there",
		2686	},
		2687	);
		2688
		2689	sub cf::client::send_msg {
		2690	my ($self, $channel, $msg, $color, @extra) = @_;
		2691
		2692	$msg = $self->pl->expand_cfpod ($msg);
		2693
		2694	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2695
		2696	# check predefined channels, for the benefit of C
		2697	if ($CHANNEL{$channel}) {
		2698	$channel = $CHANNEL{$channel};
		2699
		2700	$self->ext_msg (channel_info => $channel)
		2701	if $self->can_msg;
		2702
		2703	$channel = $channel->{id};
		2704
		2705	} elsif (ref $channel) {
		2706	# send meta info to client, if not yet sent
		2707	unless (exists $self->{channel}{$channel->{id}}) {
		2708	$self->{channel}{$channel->{id}} = $channel;
		2709	$self->ext_msg (channel_info => $channel)
		2710	if $self->can_msg;
		2711	}
		2712
		2713	$channel = $channel->{id};
		2714	}
		2715
		2716	return unless @extra || length $msg;
		2717
		2718	if ($self->can_msg) {
		2719	# default colour, mask it out
		2720	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2721	if $color & cf::NDI_DEF;
		2722
		2723	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2724	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2725	} else {
		2726	if ($color >= 0) {
		2727	# replace some tags by gcfclient-compatible ones
		2728	for ($msg) {
		2729	1 while
		2730	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2731	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2732	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2733	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2734	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2735	}
		2736
		2737	$color &= cf::NDI_COLOR_MASK;
		2738
		2739	utf8::encode $msg;
		2740
		2741	if (0 && $msg =~ /\[/) {
		2742	# COMMAND/INFO
		2743	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2744	} else {
		2745	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2746	$self->send_packet ("drawinfo $color $msg")
		2747	}
		2748	}
		2749	}
		2750	}
		2751
		2752	=item $client->ext_msg ($type, @msg)
		2753
		2754	Sends an ext event to the client.
		2755
		2756	=cut
		2757
		2758	sub cf::client::ext_msg($$@) {
		2759	my ($self, $type, @msg) = @_;
		2760
		2761	if ($self->extcmd == 2) {
		2762	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2763	} elsif ($self->extcmd == 1) { # TODO: remove
		2764	push @msg, msgtype => "event_$type";
		2765	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2766	}
		2767	}
		2768
		2769	=item $client->ext_reply ($msgid, @msg)
		2770
		2771	Sends an ext reply to the client.
		2772
		2773	=cut
		2774
		2775	sub cf::client::ext_reply($$@) {
		2776	my ($self, $id, @msg) = @_;
		2777
		2778	if ($self->extcmd == 2) {
		2779	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2780	} elsif ($self->extcmd == 1) {
		2781	#TODO: version 1, remove
		2782	unshift @msg, msgtype => "reply", msgid => $id;
		2783	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2784	}
		2785	}
1876		2786
1877	=item $success = $client->query ($flags, "text", \&cb)	2787	=item $success = $client->query ($flags, "text", \&cb)
1878		2788
1879	Queues a query to the client, calling the given callback with	2789	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>,	2790	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>.	2791	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1882		2792
1883	Queries can fail, so check the return code. Or don't, as queries will become	2793	Queries can fail, so check the return code. Or don't, as queries will
1884	reliable at some point in the future.	2794	become reliable at some point in the future.
1885		2795
1886	=cut	2796	=cut
1887		2797
1888	sub cf::client::query {	2798	sub cf::client::query {
1889	my ($self, $flags, $text, $cb) = @_;	2799	my ($self, $flags, $text, $cb) = @_;
…		…
1897	utf8::encode $text;	2807	utf8::encode $text;
1898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2808	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1899		2809
1900	$self->send_packet ($self->{query_queue}[0][0])	2810	$self->send_packet ($self->{query_queue}[0][0])
1901	if @{ $self->{query_queue} } == 1;	2811	if @{ $self->{query_queue} } == 1;
		2812
		2813	1
1902	}	2814	}
1903		2815
1904	cf::client->attach (	2816	cf::client->attach (
		2817	on_connect => sub {
		2818	my ($ns) = @_;
		2819
		2820	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2821	},
1905	on_reply => sub {	2822	on_reply => sub {
1906	my ($ns, $msg) = @_;	2823	my ($ns, $msg) = @_;
1907		2824
1908	# this weird shuffling is so that direct followup queries	2825	# this weird shuffling is so that direct followup queries
1909	# get handled first	2826	# get handled first
1910	my $queue = delete $ns->{query_queue}	2827	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	2828	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		2829
1913	(shift @$queue)->[1]->($msg);	2830	(shift @$queue)->[1]->($msg);
		2831	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		2832
1915	push @{ $ns->{query_queue} }, @$queue;	2833	push @{ $ns->{query_queue} }, @$queue;
1916		2834
1917	if (@{ $ns->{query_queue} } == @$queue) {	2835	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	2836	if (@$queue) {
…		…
1920	} else {	2838	} else {
1921	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2839	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1922	}	2840	}
1923	}	2841	}
1924	},	2842	},
		2843	on_exticmd => sub {
		2844	my ($ns, $buf) = @_;
		2845
		2846	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2847
		2848	if (ref $msg) {
		2849	my ($type, $reply, @payload) =
		2850	"ARRAY" eq ref $msg
		2851	? @$msg
		2852	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2853
		2854	my @reply;
		2855
		2856	if (my $cb = $EXTICMD{$type}) {
		2857	@reply = $cb->($ns, @payload);
		2858	}
		2859
		2860	$ns->ext_reply ($reply, @reply)
		2861	if $reply;
		2862
		2863	} else {
		2864	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2865	}
		2866
		2867	cf::override;
		2868	},
1925	);	2869	);
1926		2870
1927	=item $client->async (\&cb)	2871	=item $client->async (\&cb)
1928		2872
1929	Create a new coroutine, running the specified callback. The coroutine will	2873	Create a new coroutine, running the specified callback. The coroutine will
…		…
1970	our $safe = new Safe "safe";	2914	our $safe = new Safe "safe";
1971	our $safe_hole = new Safe::Hole;	2915	our $safe_hole = new Safe::Hole;
1972		2916
1973	$SIG{FPE} = 'IGNORE';	2917	$SIG{FPE} = 'IGNORE';
1974		2918
1975	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2919	$safe->permit_only (Opcode::opset qw(
		2920	:base_core :base_mem :base_orig :base_math
		2921	grepstart grepwhile mapstart mapwhile
		2922	sort time
		2923	));
1976		2924
1977	# here we export the classes and methods available to script code	2925	# here we export the classes and methods available to script code
1978		2926
1979	=pod	2927	=pod
1980		2928
1981	The following fucntions and emthods are available within a safe environment:	2929	The following functions and methods are available within a safe environment:
1982		2930
1983	cf::object contr pay_amount pay_player map	2931	cf::object
		2932	contr pay_amount pay_player map x y force_find force_add destroy
		2933	insert remove name archname title slaying race decrease_ob_nr
		2934
1984	cf::object::player player	2935	cf::object::player
1985	cf::player peaceful	2936	player
1986	cf::map trigger	2937
		2938	cf::player
		2939	peaceful
		2940
		2941	cf::map
		2942	trigger
1987		2943
1988	=cut	2944	=cut
1989		2945
1990	for (	2946	for (
1991	["cf::object" => qw(contr pay_amount pay_player map)],	2947	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2948	insert remove inv name archname title slaying race
		2949	decrease_ob_nr destroy)],
1992	["cf::object::player" => qw(player)],	2950	["cf::object::player" => qw(player)],
1993	["cf::player" => qw(peaceful)],	2951	["cf::player" => qw(peaceful)],
1994	["cf::map" => qw(trigger)],	2952	["cf::map" => qw(trigger)],
1995	) {	2953	) {
1996	no strict 'refs';	2954	no strict 'refs';
…		…
2067	=back	3025	=back
2068		3026
2069	=cut	3027	=cut
2070		3028
2071	#############################################################################	3029	#############################################################################
		3030	# the server's init and main functions
2072		3031
2073	=head2 EXTENSION DATABASE SUPPORT	3032	sub load_facedata($) {
		3033	my ($path) = @_;
2074		3034
2075	Crossfire maintains a very simple database for extension use. It can	3035	# HACK to clear player env face cache, we need some signal framework
2076	currently store anything that can be serialised using Storable, which	3036	# for this (global event?)
2077	excludes objects.	3037	%ext::player_env::MUSIC_FACE_CACHE = ();
2078		3038
2079	The parameter C<$family> should best start with the name of the extension	3039	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2080	using it, it should be unique.
2081		3040
2082	=over 4	3041	warn "loading facedata from $path\n";
2083		3042
2084	=item $hashref = cf::db_get $family	3043	my $facedata;
		3044	0 < aio_load $path, $facedata
		3045	or die "$path: $!";
2085		3046
2086	Return a hashref for use by the extension C<$family>, which can be	3047	$facedata = Coro::Storable::thaw $facedata;
2087	modified. After modifications, you have to call C<cf::db_dirty> or
2088	C<cf::db_sync>.
2089		3048
2090	=item $value = cf::db_get $family => $key	3049	$facedata->{version} == 2
		3050	or cf::cleanup "$path: version mismatch, cannot proceed.";
2091		3051
2092	Returns a single value from the database	3052	# patch in the exptable
2093		3053	$facedata->{resource}{"res/exp_table"} = {
2094	=item cf::db_put $family => $hashref	3054	type => FT_RSRC,
2095		3055	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	});	3056	};
		3057	cf::cede_to_tick;
2145		3058
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}	3059	{
		3060	my $faces = $facedata->{faceinfo};
2150		3061
2151	sub db_get($;$) {	3062	while (my ($face, $info) = each %$faces) {
2152	@_ >= 2	3063	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2153	? $DB->{$_[0]}{$_[1]}	3064	cf::face::set_visibility $idx, $info->{visibility};
2154	: ($DB->{$_[0]} ||= { })	3065	cf::face::set_magicmap $idx, $info->{magicmap};
2155	}	3066	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3067	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2156		3068
2157	sub db_put($$;$) {	3069	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	},	3070	}
2171	);
2172	}
2173		3071
2174	#############################################################################	3072	while (my ($face, $info) = each %$faces) {
2175	# the server's main()	3073	next unless $info->{smooth};
		3074	my $idx = cf::face::find $face
		3075	or next;
		3076	if (my $smooth = cf::face::find $info->{smooth}) {
		3077	cf::face::set_smooth $idx, $smooth;
		3078	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3079	} else {
		3080	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3081	}
2176		3082
2177	sub cfg_load {	3083	cf::cede_to_tick;
		3084	}
		3085	}
		3086
		3087	{
		3088	my $anims = $facedata->{animinfo};
		3089
		3090	while (my ($anim, $info) = each %$anims) {
		3091	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3092	cf::cede_to_tick;
		3093	}
		3094
		3095	cf::anim::invalidate_all; # d'oh
		3096	}
		3097
		3098	{
		3099	# TODO: for gcfclient pleasure, we should give resources
		3100	# that gcfclient doesn't grok a >10000 face index.
		3101	my $res = $facedata->{resource};
		3102
		3103	my $soundconf = delete $res->{"res/sound.conf"};
		3104
		3105	while (my ($name, $info) = each %$res) {
		3106	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3107	my $data;
		3108
		3109	if ($info->{type} & 1) {
		3110	# prepend meta info
		3111
		3112	my $meta = $enc->encode ({
		3113	name => $name,
		3114	%{ $info->{meta} || {} },
		3115	});
		3116
		3117	$data = pack "(w/a*)*", $meta, $info->{data};
		3118	} else {
		3119	$data = $info->{data};
		3120	}
		3121
		3122	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3123	cf::face::set_type $idx, $info->{type};
		3124
		3125	cf::cede_to_tick;
		3126	}
		3127
		3128	if ($soundconf) {
		3129	$soundconf = $enc->decode (delete $soundconf->{data});
		3130
		3131	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3132	my $sound = $soundconf->{compat}[$_]
		3133	or next;
		3134
		3135	my $face = cf::face::find "sound/$sound->[1]";
		3136	cf::sound::set $sound->[0] => $face;
		3137	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3138	}
		3139
		3140	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3141	my $face = cf::face::find "sound/$v";
		3142	cf::sound::set $k => $face;
		3143	}
		3144	}
		3145	}
		3146
		3147	1
		3148	}
		3149
		3150	register_exticmd fx_want => sub {
		3151	my ($ns, $want) = @_;
		3152
		3153	while (my ($k, $v) = each %$want) {
		3154	$ns->fx_want ($k, $v);
		3155	}
		3156	};
		3157
		3158	sub reload_regions {
		3159	# HACK to clear player env face cache, we need some signal framework
		3160	# for this (global event?)
		3161	%ext::player_env::MUSIC_FACE_CACHE = ();
		3162
		3163	load_resource_file "$MAPDIR/regions"
		3164	or die "unable to load regions file\n";
		3165
		3166	for (cf::region::list) {
		3167	$_->{match} = qr/$_->{match}/
		3168	if exists $_->{match};
		3169	}
		3170	}
		3171
		3172	sub reload_facedata {
		3173	load_facedata "$DATADIR/facedata"
		3174	or die "unable to load facedata\n";
		3175	}
		3176
		3177	sub reload_archetypes {
		3178	load_resource_file "$DATADIR/archetypes"
		3179	or die "unable to load archetypes\n";
		3180	#d# NEED to laod twice to resolve forward references
		3181	# this really needs to be done in an extra post-pass
		3182	# (which needs to be synchronous, so solve it differently)
		3183	load_resource_file "$DATADIR/archetypes"
		3184	or die "unable to load archetypes\n";
		3185	}
		3186
		3187	sub reload_treasures {
		3188	load_resource_file "$DATADIR/treasures"
		3189	or die "unable to load treasurelists\n";
		3190	}
		3191
		3192	sub reload_resources {
		3193	warn "reloading resource files...\n";
		3194
		3195	reload_regions;
		3196	reload_facedata;
		3197	#reload_archetypes;#d#
		3198	reload_archetypes;
		3199	reload_treasures;
		3200
		3201	warn "finished reloading resource files\n";
		3202	}
		3203
		3204	sub init {
		3205	reload_resources;
		3206	}
		3207
		3208	sub reload_config {
2178	open my $fh, "<:utf8", cf::confdir . "/config"	3209	open my $fh, "<:utf8", "$CONFDIR/config"
2179	or return;	3210	or return;
2180		3211
2181	local $/;	3212	local $/;
2182	*CFG = YAML::Syck::Load <$fh>;	3213	*CFG = YAML::Syck::Load <$fh>;
2183		3214
…		…
2197		3228
2198	sub main {	3229	sub main {
2199	# we must not ever block the main coroutine	3230	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	3231	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3232	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3233	(async {
		3234	$Coro::current->{desc} = "IDLE BUG HANDLER";
2202	async { Event::one_event };	3235	Event::one_event;
		3236	})->prio (Coro::PRIO_MAX);
2203	};	3237	};
2204		3238
2205	cfg_load;	3239	reload_config;
2206	db_load;	3240	db_init;
2207	load_extensions;	3241	load_extensions;
		3242
		3243	$TICK_WATCHER->start;
2208	Event::loop;	3244	Event::loop;
2209	}	3245	}
2210		3246
2211	#############################################################################	3247	#############################################################################
2212	# initialisation	3248	# initialisation and cleanup
2213		3249
		3250	# install some emergency cleanup handlers
		3251	BEGIN {
		3252	for my $signal (qw(INT HUP TERM)) {
		3253	Event->signal (
		3254	reentrant => 0,
		3255	data => WF_AUTOCANCEL,
		3256	signal => $signal,
		3257	prio => 0,
		3258	cb => sub {
		3259	cf::cleanup "SIG$signal";
		3260	},
		3261	);
		3262	}
		3263	}
		3264
		3265	sub write_runtime {
		3266	my $runtime = "$LOCALDIR/runtime";
		3267
		3268	# first touch the runtime file to show we are still running:
		3269	# the fsync below can take a very very long time.
		3270
		3271	IO::AIO::aio_utime $runtime, undef, undef;
		3272
		3273	my $guard = cf::lock_acquire "write_runtime";
		3274
		3275	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3276	or return;
		3277
		3278	my $value = $cf::RUNTIME + 90 + 10;
		3279	# 10 is the runtime save interval, for a monotonic clock
		3280	# 60 allows for the watchdog to kill the server.
		3281
		3282	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3283	and return;
		3284
		3285	# always fsync - this file is important
		3286	aio_fsync $fh
		3287	and return;
		3288
		3289	# touch it again to show we are up-to-date
		3290	aio_utime $fh, undef, undef;
		3291
		3292	close $fh
		3293	or return;
		3294
		3295	aio_rename "$runtime~", $runtime
		3296	and return;
		3297
		3298	warn "runtime file written.\n";
		3299
		3300	1
		3301	}
		3302
		3303	sub emergency_save() {
		3304	my $freeze_guard = cf::freeze_mainloop;
		3305
		3306	warn "enter emergency perl save\n";
		3307
		3308	cf::sync_job {
		3309	# use a peculiar iteration method to avoid tripping on perl
		3310	# refcount bugs in for. also avoids problems with players
		3311	# and maps saved/destroyed asynchronously.
		3312	warn "begin emergency player save\n";
		3313	for my $login (keys %cf::PLAYER) {
		3314	my $pl = $cf::PLAYER{$login} or next;
		3315	$pl->valid or next;
		3316	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3317	$pl->save;
		3318	}
		3319	warn "end emergency player save\n";
		3320
		3321	warn "begin emergency map save\n";
		3322	for my $path (keys %cf::MAP) {
		3323	my $map = $cf::MAP{$path} or next;
		3324	$map->valid or next;
		3325	$map->save;
		3326	}
		3327	warn "end emergency map save\n";
		3328
		3329	warn "begin emergency database checkpoint\n";
		3330	BDB::db_env_txn_checkpoint $DB_ENV;
		3331	warn "end emergency database checkpoint\n";
		3332	};
		3333
		3334	warn "leave emergency perl save\n";
		3335	}
		3336
		3337	sub post_cleanup {
		3338	my ($make_core) = @_;
		3339
		3340	warn Carp::longmess "post_cleanup backtrace"
		3341	if $make_core;
		3342	}
		3343
2214	sub reload() {	3344	sub do_reload_perl() {
2215	# can/must only be called in main	3345	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	3346	if ($Coro::current != $Coro::main) {
2217	warn "can only reload from main coroutine\n";	3347	warn "can only reload from main coroutine";
2218	return;	3348	return;
2219	}	3349	}
2220		3350
2221	warn "reloading...";	3351	warn "reloading...";
2222		3352
2223	my $guard = freeze_mainloop;	3353	warn "entering sync_job";
		3354
		3355	cf::sync_job {
		3356	cf::write_runtime; # external watchdog should not bark
2224	cf::emergency_save;	3357	cf::emergency_save;
		3358	cf::write_runtime; # external watchdog should not bark
2225		3359
2226	eval {	3360	warn "syncing database to disk";
		3361	BDB::db_env_txn_checkpoint $DB_ENV;
		3362
2227	# if anything goes wrong in here, we should simply crash as we already saved	3363	# if anything goes wrong in here, we should simply crash as we already saved
2228		3364
2229	# cancel all watchers	3365	warn "cancelling all WF_AUTOCANCEL watchers";
2230	for (Event::all_watchers) {	3366	for (Event::all_watchers) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;	3367	$_->cancel if $_->data & WF_AUTOCANCEL;
2232	}	3368	}
2233		3369
		3370	warn "flushing outstanding aio requests";
		3371	for (;;) {
		3372	BDB::flush;
		3373	IO::AIO::flush;
		3374	Coro::cede;
		3375	last unless IO::AIO::nreqs || BDB::nreqs;
		3376	warn "iterate...";
		3377	}
		3378
		3379	++$RELOAD;
		3380
2234	# cancel all extension coros	3381	warn "cancelling all extension coros";
2235	$_->cancel for values %EXT_CORO;	3382	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	3383	%EXT_CORO = ();
2237		3384
2238	# unload all extensions	3385	warn "removing commands";
2239	for (@exts) {	3386	%COMMAND = ();
		3387
		3388	warn "removing ext/exti commands";
		3389	%EXTCMD = ();
		3390	%EXTICMD = ();
		3391
		3392	warn "unloading/nuking all extensions";
		3393	for my $pkg (@EXTS) {
2240	warn "unloading <$_>";	3394	warn "... unloading $pkg";
2241	unload_extension $_;	3395
		3396	if (my $cb = $pkg->can ("unload")) {
		3397	eval {
		3398	$cb->($pkg);
		3399	1
		3400	} or warn "$pkg unloaded, but with errors: $@";
2242	}	3401	}
2243		3402
		3403	warn "... nuking $pkg";
		3404	Symbol::delete_package $pkg;
		3405	}
		3406
2244	# unload all modules loaded from $LIBDIR	3407	warn "unloading all perl modules loaded from $LIBDIR";
2245	while (my ($k, $v) = each %INC) {	3408	while (my ($k, $v) = each %INC) {
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3409	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2247		3410
2248	warn "removing <$k>";	3411	warn "... unloading $k";
2249	delete $INC{$k};	3412	delete $INC{$k};
2250		3413
2251	$k =~ s/\.pm$//;	3414	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;	3415	$k =~ s/\//::/g;
2253		3416
…		…
2256	}	3419	}
2257		3420
2258	Symbol::delete_package $k;	3421	Symbol::delete_package $k;
2259	}	3422	}
2260		3423
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	3424	warn "getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	3425	Symbol::delete_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3426	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		3427
2269	# remove register_script_function callbacks
2270	# TODO
2271
2272	# unload cf.pm "a bit"	3428	warn "unloading cf.pm \"a bit\"";
2273	delete $INC{"cf.pm"};	3429	delete $INC{"cf.pm"};
		3430	delete $INC{"cf/pod.pm"};
2274		3431
2275	# don't, removes xs symbols, too,	3432	# don't, removes xs symbols, too,
2276	# and global variables created in xs	3433	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	3434	#Symbol::delete_package __PACKAGE__;
2278		3435
2279	# reload cf.pm	3436	warn "unload completed, starting to reload now";
		3437
2280	warn "reloading cf.pm";	3438	warn "reloading cf.pm";
2281	require cf;	3439	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3440	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2283		3441
2284	# load config and database again	3442	warn "loading config and database again";
2285	cf::cfg_load;	3443	cf::reload_config;
2286	cf::db_load;
2287		3444
2288	# load extensions
2289	warn "load extensions";	3445	warn "loading extensions";
2290	cf::load_extensions;	3446	cf::load_extensions;
2291		3447
2292	# reattach attachments to objects	3448	warn "reattaching attachments to objects/players";
2293	warn "reattach";	3449	_global_reattach; # objects, sockets
2294	_global_reattach;	3450	warn "reattaching attachments to maps";
2295	reattach $_ for values %MAP;	3451	reattach $_ for values %MAP;
2296	};	3452	warn "reattaching attachments to players";
		3453	reattach $_ for values %PLAYER;
2297		3454
2298	if ($@) {	3455	warn "leaving sync_job";
		3456
		3457	1
		3458	} or do {
2299	warn $@;	3459	warn $@;
2300	warn "error while reloading, exiting.";	3460	warn "error while reloading, exiting.";
2301	exit 1;	3461	exit 1;
2302	}	3462	};
2303		3463
2304	warn "reloaded successfully";	3464	warn "reloaded";
2305	};	3465	};
2306		3466
2307	#############################################################################	3467	our $RELOAD_WATCHER; # used only during reload
2308		3468
2309	unless ($LINK_MAP) {	3469	sub reload_perl() {
2310	$LINK_MAP = cf::map::new;	3470	# doing reload synchronously and two reloads happen back-to-back,
		3471	# coro crashes during coro_state_free->destroy here.
2311		3472
2312	$LINK_MAP->width (41);	3473	$RELOAD_WATCHER ||= Event->timer (
2313	$LINK_MAP->height (41);	3474	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,	3475	after => 0,
		3476	data => WF_AUTOCANCEL,
2322	cb => sub {	3477	cb => sub {
2323	$_[0]->w->cancel;	3478	do_reload_perl;
2324		3479	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	});	3480	},
2343		3481	);
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	3482	}
2349
2350	register "<global>", __PACKAGE__;
2351		3483
2352	register_command "reload" => sub {	3484	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	3485	my ($who, $arg) = @_;
2354		3486
2355	if ($who->flag (FLAG_WIZ)) {	3487	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	3488	$who->message ("reloading server.");
		3489	async {
		3490	$Coro::current->{desc} = "perl_reload";
		3491	reload_perl;
		3492	};
2359	}	3493	}
2360	};	3494	};
2361		3495
2362	unshift @INC, $LIBDIR;	3496	unshift @INC, $LIBDIR;
		3497
		3498	my $bug_warning = 0;
		3499
		3500	our @WAIT_FOR_TICK;
		3501	our @WAIT_FOR_TICK_BEGIN;
		3502
		3503	sub wait_for_tick {
		3504	return unless $TICK_WATCHER->is_active;
		3505	return if $Coro::current == $Coro::main;
		3506
		3507	my $signal = new Coro::Signal;
		3508	push @WAIT_FOR_TICK, $signal;
		3509	$signal->wait;
		3510	}
		3511
		3512	sub wait_for_tick_begin {
		3513	return unless $TICK_WATCHER->is_active;
		3514	return if $Coro::current == $Coro::main;
		3515
		3516	my $signal = new Coro::Signal;
		3517	push @WAIT_FOR_TICK_BEGIN, $signal;
		3518	$signal->wait;
		3519	}
2363		3520
2364	$TICK_WATCHER = Event->timer (	3521	$TICK_WATCHER = Event->timer (
2365	reentrant => 0,	3522	reentrant => 0,
		3523	parked => 1,
2366	prio => 0,	3524	prio => 0,
2367	at => $NEXT_TICK || $TICK,	3525	at => $NEXT_TICK || $TICK,
2368	data => WF_AUTOCANCEL,	3526	data => WF_AUTOCANCEL,
2369	cb => sub {	3527	cb => sub {
		3528	if ($Coro::current != $Coro::main) {
		3529	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3530	unless ++$bug_warning > 10;
		3531	return;
		3532	}
		3533
		3534	$NOW = $tick_start = Event::time;
		3535
2370	cf::server_tick; # one server iteration	3536	cf::server_tick; # one server iteration
		3537
2371	$RUNTIME += $TICK;	3538	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;	3539	$NEXT_TICK += $TICK;
2373		3540
		3541	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3542	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3543	Coro::async_pool {
		3544	$Coro::current->{desc} = "runtime saver";
		3545	write_runtime
		3546	or warn "ERROR: unable to write runtime file: $!";
		3547	};
		3548	}
		3549
		3550	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3551	$sig->send;
		3552	}
		3553	while (my $sig = shift @WAIT_FOR_TICK) {
		3554	$sig->send;
		3555	}
		3556
		3557	$NOW = Event::time;
		3558
2374	# if we are delayed by four ticks or more, skip them all	3559	# if we are delayed by four ticks or more, skip them all
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3560	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2376		3561
2377	$TICK_WATCHER->at ($NEXT_TICK);	3562	$TICK_WATCHER->at ($NEXT_TICK);
2378	$TICK_WATCHER->start;	3563	$TICK_WATCHER->start;
		3564
		3565	$LOAD = ($NOW - $tick_start) / $TICK;
		3566	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3567
		3568	_post_tick;
2379	},	3569	},
2380	);	3570	);
2381		3571
		3572	{
		3573	BDB::min_parallel 8;
2382	IO::AIO::max_poll_time $TICK * 0.2;	3574	BDB::max_poll_time $TICK * 0.1;
2383		3575	$BDB_POLL_WATCHER = Event->io (
2384	Event->io (	3576	reentrant => 0,
2385	fd => IO::AIO::poll_fileno,	3577	fd => BDB::poll_fileno,
2386	poll => 'r',	3578	poll => 'r',
2387	prio => 5,	3579	prio => 0,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391
2392	Event->timer (
2393	data => WF_AUTOCANCEL,	3580	data => WF_AUTOCANCEL,
		3581	cb => \&BDB::poll_cb,
		3582	);
		3583
		3584	BDB::set_sync_prepare {
		3585	my $status;
		3586	my $current = $Coro::current;
		3587	(
		3588	sub {
		3589	$status = $!;
		3590	$current->ready; undef $current;
		3591	},
		3592	sub {
		3593	Coro::schedule while defined $current;
		3594	$! = $status;
		3595	},
		3596	)
		3597	};
		3598
		3599	unless ($DB_ENV) {
		3600	$DB_ENV = BDB::db_env_create;
		3601	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3602	| BDB::LOG_AUTOREMOVE, 1);
		3603	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3604	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3605
		3606	cf::sync_job {
		3607	eval {
		3608	BDB::db_env_open
		3609	$DB_ENV,
		3610	$BDBDIR,
		3611	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3612	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3613	0666;
		3614
		3615	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3616	};
		3617
		3618	cf::cleanup "db_env_open(db): $@" if $@;
		3619	};
		3620	}
		3621
		3622	$BDB_DEADLOCK_WATCHER = Event->timer (
2394	after => 0,	3623	after => 3,
2395	interval => 10,	3624	interval => 1,
		3625	hard => 1,
		3626	prio => 0,
		3627	data => WF_AUTOCANCEL,
2396	cb => sub {	3628	cb => sub {
2397	(Coro::unblock_sub {	3629	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2398	write_runtime	3630	},
2399	or warn "ERROR: unable to write runtime file: $!";	3631	);
		3632	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3633	after => 11,
		3634	interval => 60,
		3635	hard => 1,
		3636	prio => 0,
		3637	data => WF_AUTOCANCEL,
		3638	cb => sub {
		3639	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3640	},
		3641	);
		3642	$BDB_TRICKLE_WATCHER = Event->timer (
		3643	after => 5,
		3644	interval => 10,
		3645	hard => 1,
		3646	prio => 0,
		3647	data => WF_AUTOCANCEL,
		3648	cb => sub {
		3649	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3650	},
		3651	);
		3652	}
		3653
		3654	{
		3655	IO::AIO::min_parallel 8;
		3656
		3657	undef $Coro::AIO::WATCHER;
		3658	IO::AIO::max_poll_time $TICK * 0.1;
		3659	$AIO_POLL_WATCHER = Event->io (
		3660	reentrant => 0,
		3661	data => WF_AUTOCANCEL,
		3662	fd => IO::AIO::poll_fileno,
		3663	poll => 'r',
		3664	prio => 0,
		3665	cb => \&IO::AIO::poll_cb,
		3666	);
		3667	}
		3668
		3669	my $_log_backtrace;
		3670
		3671	sub _log_backtrace {
		3672	my ($msg, @addr) = @_;
		3673
		3674	$msg =~ s/\n//;
		3675
		3676	# limit the # of concurrent backtraces
		3677	if ($_log_backtrace < 2) {
		3678	++$_log_backtrace;
		3679	async {
		3680	$Coro::current->{desc} = "abt $msg";
		3681
		3682	my @bt = fork_call {
		3683	@addr = map { sprintf "%x", $_ } @addr;
		3684	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3685	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3686	or die "addr2line: $!";
		3687
		3688	my @funcs;
		3689	my @res = <$fh>;
		3690	chomp for @res;
		3691	while (@res) {
		3692	my ($func, $line) = splice @res, 0, 2, ();
		3693	push @funcs, "[$func] $line";
		3694	}
		3695
		3696	@funcs
		3697	};
		3698
		3699	LOG llevInfo, "[ABT] $msg\n";
		3700	LOG llevInfo, "[ABT] $_\n" for @bt;
		3701	--$_log_backtrace;
2400	})->();	3702	};
		3703	} else {
		3704	LOG llevInfo, "[ABT] $msg\n";
		3705	LOG llevInfo, "[ABT] [suppressed]\n";
2401	},	3706	}
2402	);	3707	}
		3708
		3709	# load additional modules
		3710	use cf::pod;
2403		3711
2404	END { cf::emergency_save }	3712	END { cf::emergency_save }
2405		3713
2406	1	3714	1
2407		3715

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