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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 1.403 by root, Mon Dec 17 07:09:18 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 EV;
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 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
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::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
		28	use BDB ();
20	use Data::Dumper;	29	use Data::Dumper;
21	use Digest::MD5;	30	use Digest::MD5;
22	use Fcntl;	31	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	32	use YAML::Syck ();
		33	use IO::AIO 2.51 ();
25	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
26		37
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	# configure various modules to our taste
		39	#
		40	$Storable::canonical = 1; # reduce rsync transfers
		41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
28		43
29	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
30	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
31		46
32	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
33		48
34	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
39		59
		60	our $RELOAD; # number of reloads so far
40	our @EVENT;	61	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		62
43	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
44	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	79	our $NEXT_TICK;
46	our $NOW;	80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $BDB_DEADLOCK_WATCHER;
		84	our $BDB_CHECKPOINT_WATCHER;
		85	our $BDB_TRICKLE_WATCHER;
		86	our $DB_ENV;
47		87
48	our %CFG;	88	our %CFG;
49		89
50	our $UPTIME; $UPTIME ||= time;	90	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	91	our $RUNTIME;
		92	our $NOW;
52		93
53	our %PLAYER; # all users	94	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	95	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	96	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";	97
57	our %EXT_CORO; # coroutines bound to extensions	98	# used to convert map paths into valid unix filenames by replacing / by ∕
		99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
58		104
59	binmode STDOUT;	105	binmode STDOUT;
60	binmode STDERR;	106	binmode STDERR;
61		107
62	# read virtual server time, if available	108	# read virtual server time, if available
63	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
64	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
65	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
66	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
67	}	113	}
68		114
69	mkdir cf::localdir;	115	mkdir $_
70	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
71	mkdir cf::localdir . "/" . cf::tmpdir;
72	mkdir cf::localdir . "/" . cf::uniquedir;
73	mkdir $RANDOM_MAPS;
74		117
75	# a special map that is always available
76	our $LINK_MAP;
77	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
		119
		120	sub cf::map::normalise;
78		121
79	#############################################################################	122	#############################################################################
80		123
81	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
82		125
…		…
89	=item $cf::RUNTIME	132	=item $cf::RUNTIME
90		133
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	135	every server tick.
93		136
94	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		140
96	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
98		145
99	=item $cf::NOW	146	=item $cf::NOW
100		147
101	The time of the last (current) server tick.	148	The time of the last (current) server tick.
102		149
103	=item $cf::TICK	150	=item $cf::TICK
104		151
105	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
106		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
		163
107	=item %cf::CFG	164	=item %cf::CFG
108		165
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	167	from wherever your confdir points to.
		168
		169	=item cf::wait_for_tick, cf::wait_for_tick_begin
		170
		171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		172	returns directly I<after> the tick processing (and consequently, can only wake one process
		173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
111		180
112	=back	181	=back
113		182
114	=cut	183	=cut
115		184
116	BEGIN {	185	BEGIN {
117	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	187	my $msg = join "", @_;
119	utf8::encode $msg;
120		188
121	$msg .= "\n"	189	$msg .= "\n"
122	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123		193
124	LOG llevError, $msg;	194	LOG llevError, $msg;
125	};	195	};
126	}	196	}
127		197
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		205
135	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	207	# within the Safe compartment.
137	for my $pkg (qw(	208	for my $pkg (qw(
138	cf::global cf::attachable	209	cf::global cf::attachable
…		…
143	)) {	214	)) {
144	no strict 'refs';	215	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	216	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	217	}
147		218
148	$Event::DIED = sub {	219	$EV::DIED = sub {
149	warn "error in event callback: @_";	220	warn "error in event callback: @_";
150	};	221	};
151		222
152	my %ext_pkg;	223	#############################################################################
153	my @exts;
154	my @hook;
155		224
156	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
157		226
158	=over 4	227	=over 4
159		228
…		…
178	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
179	$d	248	$d
180	} || "[unable to dump $_[0]: '$@']";	249	} || "[unable to dump $_[0]: '$@']";
181	}	250	}
182		251
183	use JSON::Syck (); # TODO# replace by JSON::PC once working
184
185	=item $ref = cf::from_json $json	252	=item $ref = cf::decode_json $json
186		253
187	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
188		255
189	=cut
190
191	sub from_json($) {
192	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
193	JSON::Syck::Load $_[0]
194	}
195
196	=item $json = cf::to_json $ref	256	=item $json = cf::encode_json $ref
197		257
198	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
199		259
200	=cut	260	=cut
201		261
202	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
203	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
204	JSON::Syck::Dump $_[0]	264	sub encode_json($) { $json_coder->encode ($_[0]) }
205	}	265	sub decode_json($) { $json_coder->decode ($_[0]) }
206		266
207	=item cf::lock_wait $string	267	=item cf::lock_wait $string
208		268
209	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
210		270
…		…
213	Wait until the given lock is available and then acquires it and returns	273	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,	274	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	275	for example when the coroutine gets canceled), the lock is automatically
216	returned.	276	returned.
217		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
218	Lock names should begin with a unique identifier (for example, cf::map::find	281	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
220		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
221	=cut	288	=cut
222		289
223	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
224		292
225	sub lock_wait($) {	293	sub lock_wait($) {
226	my ($key) = @_;	294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
227		300
228	# wait for lock, if any	301	# wait for lock, if any
229	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;	304	Coro::schedule;
…		…
237		310
238	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
239	lock_wait $key;	312	lock_wait $key;
240		313
241	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
242		316
243	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
244	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
246	}	321	}
247	}	322	}
248		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
249	sub freeze_mainloop {	330	sub freeze_mainloop {
250	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
251		332
252	my $guard = Coro::guard { $TICK_WATCHER->start };	333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
253	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
254	$guard	337	$guard
		338	}
		339
		340	=item cf::periodic $interval, $cb
		341
		342	Like EV::periodic, but randomly selects a starting point so that the actions
		343	get spread over timer.
		344
		345	=cut
		346
		347	sub periodic($$) {
		348	my ($interval, $cb) = @_;
		349
		350	my $start = rand List::Util::min 180, $interval;
		351
		352	EV::periodic $start, $interval, 0, $cb
		353	}
		354
		355	=item cf::get_slot $time[, $priority[, $name]]
		356
		357	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		358	This call blocks and returns only when you have at least C<$time> seconds
		359	of cpu time till the next tick. The slot is only valid till the next cede.
		360
		361	The optional C<$name> can be used to identify the job to run. It might be
		362	used for statistical purposes and should identify the same time-class.
		363
		364	Useful for short background jobs.
		365
		366	=cut
		367
		368	our @SLOT_QUEUE;
		369	our $SLOT_QUEUE;
		370
		371	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		372	$SLOT_QUEUE = Coro::async {
		373	$Coro::current->desc ("timeslot manager");
		374
		375	my $signal = new Coro::Signal;
		376
		377	while () {
		378	next_job:
		379	my $avail = cf::till_tick;
		380	if ($avail > 0.01) {
		381	for (0 .. $#SLOT_QUEUE) {
		382	if ($SLOT_QUEUE[$_][0] < $avail) {
		383	my $job = splice @SLOT_QUEUE, $_, 1, ();
		384	$job->[2]->send;
		385	Coro::cede;
		386	goto next_job;
		387	}
		388	}
		389	}
		390
		391	if (@SLOT_QUEUE) {
		392	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		393	push @cf::WAIT_FOR_TICK, $signal;
		394	$signal->wait;
		395	} else {
		396	Coro::schedule;
		397	}
		398	}
		399	};
		400
		401	sub get_slot($;$$) {
		402	my ($time, $pri, $name) = @_;
		403
		404	$time = $TICK * .6 if $time > $TICK * .6;
		405	my $sig = new Coro::Signal;
		406
		407	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		408	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		409	$SLOT_QUEUE->ready;
		410	$sig->wait;
255	}	411	}
256		412
257	=item cf::async { BLOCK }	413	=item cf::async { BLOCK }
258		414
259	Currently the same as Coro::async_pool, meaning you cannot use	415	Currently the same as Coro::async_pool, meaning you cannot use
…		…
264		420
265	BEGIN { *async = \&Coro::async_pool }	421	BEGIN { *async = \&Coro::async_pool }
266		422
267	=item cf::sync_job { BLOCK }	423	=item cf::sync_job { BLOCK }
268		424
269	The design of crossfire+ requires that the main coro ($Coro::main) is	425	The design of Deliantra requires that the main coroutine ($Coro::main)
270	always able to handle events or runnable, as crossfire+ is only partly	426	is always able to handle events or runnable, as Deliantra is only
271	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	427	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		428	acceptable.
272		429
273	If it must be done, put the blocking parts into C<sync_job>. This will run	430	If it must be done, put the blocking parts into C<sync_job>. This will run
274	the given BLOCK in another coroutine while waiting for the result. The	431	the given BLOCK in another coroutine while waiting for the result. The
275	server will be frozen during this time, so the block should either finish	432	server will be frozen during this time, so the block should either finish
276	fast or be very important.	433	fast or be very important.
…		…
279		436
280	sub sync_job(&) {	437	sub sync_job(&) {
281	my ($job) = @_;	438	my ($job) = @_;
282		439
283	if ($Coro::current == $Coro::main) {	440	if ($Coro::current == $Coro::main) {
		441	my $time = EV::time;
		442
284	# this is the main coro, too bad, we have to block	443	# this is the main coro, too bad, we have to block
285	# till the operation succeeds, freezing the server :/	444	# till the operation succeeds, freezing the server :/
286		445
		446	LOG llevError, Carp::longmess "sync job";#d#
		447
287	# TODO: use suspend/resume instead	448	# TODO: use suspend/resume instead
288	# (but this is cancel-safe)	449	# (but this is cancel-safe)
289	my $freeze_guard = freeze_mainloop;	450	my $freeze_guard = freeze_mainloop;
290		451
291	my $busy = 1;	452	my $busy = 1;
292	my @res;	453	my @res;
293		454
294	(async {	455	(async {
		456	$Coro::current->desc ("sync job coro");
295	@res = eval { $job->() };	457	@res = eval { $job->() };
296	warn $@ if $@;	458	warn $@ if $@;
297	undef $busy;	459	undef $busy;
298	})->prio (Coro::PRIO_MAX);	460	})->prio (Coro::PRIO_MAX);
299		461
300	while ($busy) {	462	while ($busy) {
301	Coro::cede or Event::one_event;	463	if (Coro::nready) {
		464	Coro::cede_notself;
		465	} else {
		466	EV::loop EV::LOOP_ONESHOT;
302	}	467	}
		468	}
		469
		470	$time = EV::time - $time;
		471
		472	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		473	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		474
		475	$tick_start += $time; # do not account sync jobs to server load
303		476
304	wantarray ? @res : $res[0]	477	wantarray ? @res : $res[0]
305	} else {	478	} else {
306	# we are in another coroutine, how wonderful, everything just works	479	# we are in another coroutine, how wonderful, everything just works
307		480
…		…
309	}	482	}
310	}	483	}
311		484
312	=item $coro = cf::async_ext { BLOCK }	485	=item $coro = cf::async_ext { BLOCK }
313		486
314	Like async, but this coro is automcatially being canceled when the	487	Like async, but this coro is automatically being canceled when the
315	extension calling this is being unloaded.	488	extension calling this is being unloaded.
316		489
317	=cut	490	=cut
318		491
319	sub async_ext(&) {	492	sub async_ext(&) {
…		…
327	$EXT_CORO{$coro+0} = $coro;	500	$EXT_CORO{$coro+0} = $coro;
328		501
329	$coro	502	$coro
330	}	503	}
331		504
332	sub write_runtime {	505	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		506
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	507	Executes the given code block with the given arguments in a seperate
336	or return;	508	process, returning the results. Everything must be serialisable with
		509	Coro::Storable. May, of course, block. Note that the executed sub may
		510	never block itself or use any form of event handling.
337		511
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	512	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		513
342	aio_fsync $fh	514	sub fork_call(&@) {
343	and return;	515	my ($cb, @args) = @_;
344		516
345	close $fh	517	# we seemingly have to make a local copy of the whole thing,
346	or return;	518	# otherwise perl prematurely frees the stuff :/
		519	# TODO: investigate and fix (likely this will be rather laborious)
347		520
348	aio_rename "$runtime~", $runtime	521	my @res = Coro::Util::fork_eval {
349	and return;	522	reset_signals;
		523	&$cb
		524	}, @args;
350		525
		526	wantarray ? @res : $res[-1]
		527	}
		528
		529	=item $value = cf::db_get $family => $key
		530
		531	Returns a single value from the environment database.
		532
		533	=item cf::db_put $family => $key => $value
		534
		535	Stores the given C<$value> in the family. It can currently store binary
		536	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		537
		538	=item $db = cf::db_table "name"
		539
		540	Create and/or open a new database table. The string must not be "db" and must be unique
		541	within each server.
		542
		543	=cut
		544
		545	sub db_table($) {
		546	my ($name) = @_;
		547	my $db = BDB::db_create $DB_ENV;
		548
		549	eval {
		550	$db->set_flags (BDB::CHKSUM);
		551
		552	utf8::encode $name;
		553	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		554	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		555	cf::cleanup "db_open(db): $!" if $!;
		556	};
		557	cf::cleanup "db_open(db): $@" if $@;
		558
		559	$db
		560	}
		561
		562	our $DB;
		563
		564	sub db_init {
		565	cf::sync_job {
		566	$DB ||= db_table "db";
		567	};
		568	}
		569
		570	sub db_get($$) {
		571	my $key = "$_[0]/$_[1]";
		572
		573	cf::sync_job {
		574	BDB::db_get $DB, undef, $key, my $data;
		575
		576	$! ? ()
		577	: $data
351	1	578	}
		579	}
		580
		581	sub db_put($$$) {
		582	BDB::dbreq_pri 4;
		583	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		584	}
		585
		586	=item cf::cache $id => [$paths...], $processversion => $process
		587
		588	Generic caching function that returns the value of the resource $id,
		589	caching and regenerating as required.
		590
		591	This function can block.
		592
		593	=cut
		594
		595	sub cache {
		596	my ($id, $src, $processversion, $process) = @_;
		597
		598	my $meta =
		599	join "\x00",
		600	$processversion,
		601	map {
		602	aio_stat $_
		603	and Carp::croak "$_: $!";
		604
		605	($_, (stat _)[7,9])
		606	} @$src;
		607
		608	my $dbmeta = db_get cache => "$id/meta";
		609	if ($dbmeta ne $meta) {
		610	# changed, we may need to process
		611
		612	my @data;
		613	my $md5;
		614
		615	for (0 .. $#$src) {
		616	0 <= aio_load $src->[$_], $data[$_]
		617	or Carp::croak "$src->[$_]: $!";
		618	}
		619
		620	# if processing is expensive, check
		621	# checksum first
		622	if (1) {
		623	$md5 =
		624	join "\x00",
		625	$processversion,
		626	map {
		627	cf::cede_to_tick;
		628	($src->[$_], Digest::MD5::md5_hex $data[$_])
		629	} 0.. $#$src;
		630
		631
		632	my $dbmd5 = db_get cache => "$id/md5";
		633	if ($dbmd5 eq $md5) {
		634	db_put cache => "$id/meta", $meta;
		635
		636	return db_get cache => "$id/data";
		637	}
		638	}
		639
		640	my $t1 = Time::HiRes::time;
		641	my $data = $process->(\@data);
		642	my $t2 = Time::HiRes::time;
		643
		644	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		645
		646	db_put cache => "$id/data", $data;
		647	db_put cache => "$id/md5" , $md5;
		648	db_put cache => "$id/meta", $meta;
		649
		650	return $data;
		651	}
		652
		653	db_get cache => "$id/data"
		654	}
		655
		656	=item cf::datalog type => key => value, ...
		657
		658	Log a datalog packet of the given type with the given key-value pairs.
		659
		660	=cut
		661
		662	sub datalog($@) {
		663	my ($type, %kv) = @_;
		664	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	665	}
353		666
354	=back	667	=back
355		668
356	=cut	669	=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		670
480	#############################################################################	671	#############################################################################
481		672
482	=head2 ATTACHABLE OBJECTS	673	=head2 ATTACHABLE OBJECTS
483		674
…		…
485	attach callbacks/event handlers (a collection of which is called an "attachment")	676	attach callbacks/event handlers (a collection of which is called an "attachment")
486	to it. All such attachable objects support the following methods.	677	to it. All such attachable objects support the following methods.
487		678
488	In the following description, CLASS can be any of C<global>, C<object>	679	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	680	C<player>, C<client> or C<map> (i.e. the attachable objects in
490	crossfire+).	681	Deliantra).
491		682
492	=over 4	683	=over 4
493		684
494	=item $attachable->attach ($attachment, key => $value...)	685	=item $attachable->attach ($attachment, key => $value...)
495		686
…		…
609	our @CB_TYPE = (); # registry for type (cf-object class) based events	800	our @CB_TYPE = (); # registry for type (cf-object class) based events
610	our @CB_MAP = ();	801	our @CB_MAP = ();
611		802
612	my %attachment;	803	my %attachment;
613		804
		805	sub cf::attachable::thawer_merge {
		806	# simply override everything except _meta
		807	local $_[0]{_meta};
		808	%{$_[0]} = %{$_[1]};
		809	}
		810
614	sub _attach_cb($$$$) {	811	sub _attach_cb($$$$) {
615	my ($registry, $event, $prio, $cb) = @_;	812	my ($registry, $event, $prio, $cb) = @_;
616		813
617	use sort 'stable';	814	use sort 'stable';
618		815
…		…
652	$registry = $CB_TYPE[$object_type] ||= [];	849	$registry = $CB_TYPE[$object_type] ||= [];
653		850
654	} elsif ($type eq "subtype") {	851	} elsif ($type eq "subtype") {
655	defined $object_type or Carp::croak "subtype specified without type";	852	defined $object_type or Carp::croak "subtype specified without type";
656	my $object_subtype = shift @arg;	853	my $object_subtype = shift @arg;
657	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	854	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
658		855
659	} elsif ($type eq "package") {	856	} elsif ($type eq "package") {
660	my $pkg = shift @arg;	857	my $pkg = shift @arg;
661		858
662	while (my ($name, $id) = each %cb_id) {	859	while (my ($name, $id) = each %cb_id) {
…		…
691	_attach $registry, $klass, @attach;	888	_attach $registry, $klass, @attach;
692	}	889	}
693		890
694	$obj->{$name} = \%arg;	891	$obj->{$name} = \%arg;
695	} else {	892	} else {
696	warn "object uses attachment '$name' that is not available, postponing.\n";	893	warn "object uses attachment '$name' which is not available, postponing.\n";
697	}	894	}
698		895
699	$obj->{_attachment}{$name} = undef;	896	$obj->{_attachment}{$name} = undef;
700	}	897	}
701		898
…		…
703	if (ref $_[0]) {	900	if (ref $_[0]) {
704	_object_attach @_;	901	_object_attach @_;
705	} else {	902	} else {
706	_attach shift->_attach_registry, @_;	903	_attach shift->_attach_registry, @_;
707	}	904	}
		905	_recalc_want;
708	};	906	};
709		907
710	# all those should be optimised	908	# all those should be optimised
711	sub cf::attachable::detach {	909	sub cf::attachable::detach {
712	my ($obj, $name) = @_;	910	my ($obj, $name) = @_;
…		…
715	delete $obj->{_attachment}{$name};	913	delete $obj->{_attachment}{$name};
716	reattach ($obj);	914	reattach ($obj);
717	} else {	915	} else {
718	Carp::croak "cannot, currently, detach class attachments";	916	Carp::croak "cannot, currently, detach class attachments";
719	}	917	}
		918	_recalc_want;
720	};	919	};
721		920
722	sub cf::attachable::attached {	921	sub cf::attachable::attached {
723	my ($obj, $name) = @_;	922	my ($obj, $name) = @_;
724		923
…		…
739	";	938	";
740	die if $@;	939	die if $@;
741	}	940	}
742		941
743	our $override;	942	our $override;
744	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	943	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
745		944
746	sub override {	945	sub override {
747	$override = 1;	946	$override = 1;
748	@invoke_results = ();	947	@INVOKE_RESULTS = (@_);
749	}	948	}
750		949
751	sub do_invoke {	950	sub do_invoke {
752	my $event = shift;	951	my $event = shift;
753	my $callbacks = shift;	952	my $callbacks = shift;
754		953
755	@invoke_results = ();	954	@INVOKE_RESULTS = ();
756		955
757	local $override;	956	local $override;
758		957
759	for (@$callbacks) {	958	for (@$callbacks) {
760	eval { &{$_->[1]} };	959	eval { &{$_->[1]} };
…		…
777		976
778	Generate an object-specific event with the given arguments.	977	Generate an object-specific event with the given arguments.
779		978
780	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	979	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	980	removed in future versions), and there is no public API to access override
782	results (if you must, access C<@cf::invoke_results> directly).	981	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
783		982
784	=back	983	=back
785		984
786	=cut	985	=cut
787		986
788	#############################################################################	987	#############################################################################
789	# object support	988	# object support
		989
		990	sub _object_equal($$);
		991	sub _object_equal($$) {
		992	my ($a, $b) = @_;
		993
		994	return 0 unless (ref $a) eq (ref $b);
		995
		996	if ("HASH" eq ref $a) {
		997	my @ka = keys %$a;
		998	my @kb = keys %$b;
		999
		1000	return 0 if @ka != @kb;
		1001
		1002	for (0 .. $#ka) {
		1003	return 0 unless $ka[$_] eq $kb[$_];
		1004	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1005	}
		1006
		1007	} elsif ("ARRAY" eq ref $a) {
		1008
		1009	return 0 if @$a != @$b;
		1010
		1011	for (0 .. $#$a) {
		1012	return 0 unless _object_equal $a->[$_], $b->[$_];
		1013	}
		1014
		1015	} elsif ($a ne $b) {
		1016	return 0;
		1017	}
		1018
		1019	1
		1020	}
		1021
		1022	our $SLOW_MERGES;#d#
		1023	sub _can_merge {
		1024	my ($ob1, $ob2) = @_;
		1025
		1026	++$SLOW_MERGES;#d#
		1027
		1028	# we do the slow way here
		1029	return _object_equal $ob1, $ob2
		1030	}
790		1031
791	sub reattach {	1032	sub reattach {
792	# basically do the same as instantiate, without calling instantiate	1033	# basically do the same as instantiate, without calling instantiate
793	my ($obj) = @_;	1034	my ($obj) = @_;
		1035
		1036	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
794		1037
795	my $registry = $obj->registry;	1038	my $registry = $obj->registry;
796		1039
797	@$registry = ();	1040	@$registry = ();
798		1041
…		…
813	cf::attachable->attach (	1056	cf::attachable->attach (
814	prio => -1000000,	1057	prio => -1000000,
815	on_instantiate => sub {	1058	on_instantiate => sub {
816	my ($obj, $data) = @_;	1059	my ($obj, $data) = @_;
817		1060
818	$data = from_json $data;	1061	$data = decode_json $data;
819		1062
820	for (@$data) {	1063	for (@$data) {
821	my ($name, $args) = @$_;	1064	my ($name, $args) = @$_;
822		1065
823	$obj->attach ($name, %{$args || {} });	1066	$obj->attach ($name, %{$args || {} });
…		…
839	sub object_freezer_save {	1082	sub object_freezer_save {
840	my ($filename, $rdata, $objs) = @_;	1083	my ($filename, $rdata, $objs) = @_;
841		1084
842	sync_job {	1085	sync_job {
843	if (length $$rdata) {	1086	if (length $$rdata) {
		1087	utf8::decode (my $decname = $filename);
844	warn sprintf "saving %s (%d,%d)\n",	1088	warn sprintf "saving %s (%d,%d)\n",
845	$filename, length $$rdata, scalar @$objs;	1089	$decname, length $$rdata, scalar @$objs;
846		1090
847	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1091	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
848	chmod SAVE_MODE, $fh;	1092	chmod SAVE_MODE, $fh;
849	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1093	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
850	aio_fsync $fh;	1094	aio_fsync $fh if $cf::USE_FSYNC;
851	close $fh;	1095	close $fh;
852		1096
853	if (@$objs) {	1097	if (@$objs) {
854	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1098	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
855	chmod SAVE_MODE, $fh;	1099	chmod SAVE_MODE, $fh;
856	my $data = Storable::nfreeze { version => 1, objs => $objs };	1100	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
857	aio_write $fh, 0, (length $data), $data, 0;	1101	aio_write $fh, 0, (length $data), $data, 0;
858	aio_fsync $fh;	1102	aio_fsync $fh if $cf::USE_FSYNC;
859	close $fh;	1103	close $fh;
860	aio_rename "$filename.pst~", "$filename.pst";	1104	aio_rename "$filename.pst~", "$filename.pst";
861	}	1105	}
862	} else {	1106	} else {
863	aio_unlink "$filename.pst";	1107	aio_unlink "$filename.pst";
…		…
869	}	1113	}
870	} else {	1114	} else {
871	aio_unlink $filename;	1115	aio_unlink $filename;
872	aio_unlink "$filename.pst";	1116	aio_unlink "$filename.pst";
873	}	1117	}
874	}	1118	};
875	}	1119	}
876		1120
877	sub object_freezer_as_string {	1121	sub object_freezer_as_string {
878	my ($rdata, $objs) = @_;	1122	my ($rdata, $objs) = @_;
879		1123
…		…
891	or return;	1135	or return;
892		1136
893	unless (aio_stat "$filename.pst") {	1137	unless (aio_stat "$filename.pst") {
894	(aio_load "$filename.pst", $av) >= 0	1138	(aio_load "$filename.pst", $av) >= 0
895	or return;	1139	or return;
		1140
896	$av = eval { (Storable::thaw $av)->{objs} };	1141	my $st = eval { Coro::Storable::thaw $av };
		1142	$av = $st->{objs};
897	}	1143	}
898		1144
		1145	utf8::decode (my $decname = $filename);
899	warn sprintf "loading %s (%d)\n",	1146	warn sprintf "loading %s (%d,%d)\n",
900	$filename, length $data, scalar @{$av || []};#d#	1147	$decname, length $data, scalar @{$av || []};
		1148
901	return ($data, $av);	1149	($data, $av)
902	}	1150	}
		1151
		1152	=head2 COMMAND CALLBACKS
		1153
		1154	=over 4
		1155
		1156	=cut
903		1157
904	#############################################################################	1158	#############################################################################
905	# command handling &c	1159	# command handling &c
906		1160
907	=item cf::register_command $name => \&callback($ob,$args);	1161	=item cf::register_command $name => \&callback($ob,$args);
…		…
920	push @{ $COMMAND{$name} }, [$caller, $cb];	1174	push @{ $COMMAND{$name} }, [$caller, $cb];
921	}	1175	}
922		1176
923	=item cf::register_extcmd $name => \&callback($pl,$packet);	1177	=item cf::register_extcmd $name => \&callback($pl,$packet);
924		1178
925	Register a callbackf ro execution when the client sends an extcmd packet.	1179	Register a callback for execution when the client sends an (synchronous)
		1180	extcmd packet. Ext commands will be processed in the order they are
		1181	received by the server, like other user commands. The first argument is
		1182	the logged-in player. Ext commands can only be processed after a player
		1183	has logged in successfully.
926		1184
927	If the callback returns something, it is sent back as if reply was being	1185	If the callback returns something, it is sent back as if reply was being
928	called.	1186	called.
929		1187
		1188	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1189
		1190	Register a callback for execution when the client sends an (asynchronous)
		1191	exticmd packet. Exti commands are processed by the server as soon as they
		1192	are received, i.e. out of order w.r.t. other commands. The first argument
		1193	is a client socket. Exti commands can be received anytime, even before
		1194	log-in.
		1195
		1196	If the callback returns something, it is sent back as if reply was being
		1197	called.
		1198
930	=cut	1199	=cut
931		1200
932	sub register_extcmd {	1201	sub register_extcmd {
933	my ($name, $cb) = @_;	1202	my ($name, $cb) = @_;
934		1203
935	my $caller = caller;
936	#warn "registering extcmd '$name' to '$caller'";
937
938	$EXTCMD{$name} = [$cb, $caller];	1204	$EXTCMD{$name} = $cb;
		1205	}
		1206
		1207	sub register_exticmd {
		1208	my ($name, $cb) = @_;
		1209
		1210	$EXTICMD{$name} = $cb;
939	}	1211	}
940		1212
941	cf::player->attach (	1213	cf::player->attach (
942	on_command => sub {	1214	on_command => sub {
943	my ($pl, $name, $params) = @_;	1215	my ($pl, $name, $params) = @_;
…		…
952	cf::override;	1224	cf::override;
953	},	1225	},
954	on_extcmd => sub {	1226	on_extcmd => sub {
955	my ($pl, $buf) = @_;	1227	my ($pl, $buf) = @_;
956		1228
957	my $msg = eval { from_json $buf };	1229	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
958		1230
959	if (ref $msg) {	1231	if (ref $msg) {
		1232	my ($type, $reply, @payload) =
		1233	"ARRAY" eq ref $msg
		1234	? @$msg
		1235	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1236
		1237	my @reply;
		1238
960	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1239	if (my $cb = $EXTCMD{$type}) {
961	if (my %reply = $cb->[0]->($pl, $msg)) {	1240	@reply = $cb->($pl, @payload);
962	$pl->ext_reply ($msg->{msgid}, %reply);
963	}
964	}	1241	}
		1242
		1243	$pl->ext_reply ($reply, @reply)
		1244	if $reply;
		1245
965	} else {	1246	} else {
966	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1247	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
967	}	1248	}
968		1249
969	cf::override;	1250	cf::override;
970	},	1251	},
971	);	1252	);
972		1253
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 {	1254	sub load_extensions {
		1255	cf::sync_job {
		1256	my %todo;
		1257
1050	for my $ext (<$LIBDIR/*.ext>) {	1258	for my $path (<$LIBDIR/*.ext>) {
1051	next unless -r $ext;	1259	next unless -r $path;
1052	eval {	1260
1053	load_extension $ext;	1261	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1262	my $base = $1;
		1263	my $pkg = $1;
		1264	$pkg =~ s/[^[:word:]]/_/g;
		1265	$pkg = "ext::$pkg";
		1266
		1267	open my $fh, "<:utf8", $path
		1268	or die "$path: $!";
		1269
		1270	my $source = do { local $/; <$fh> };
		1271
		1272	my %ext = (
		1273	path => $path,
		1274	base => $base,
		1275	pkg => $pkg,
		1276	);
		1277
		1278	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1279	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1280
		1281	$ext{source} =
		1282	"package $pkg; use strict; use utf8;\n"
		1283	. "#line 1 \"$path\"\n{\n"
		1284	. $source
		1285	. "\n};\n1";
		1286
		1287	$todo{$base} = \%ext;
		1288	}
		1289
		1290	my %done;
		1291	while (%todo) {
		1292	my $progress;
		1293
		1294	while (my ($k, $v) = each %todo) {
		1295	for (split /,\s*/, $v->{meta}{depends}) {
		1296	goto skip
		1297	unless exists $done{$_};
		1298	}
		1299
		1300	warn "... loading '$k' into '$v->{pkg}'\n";
		1301
		1302	unless (eval $v->{source}) {
		1303	my $msg = $@ ? "$v->{path}: $@\n"
		1304	: "$v->{base}: extension inactive.\n";
		1305
		1306	if (exists $v->{meta}{mandatory}) {
		1307	warn $msg;
		1308	warn "mandatory extension failed to load, exiting.\n";
		1309	exit 1;
		1310	}
		1311
		1312	warn $msg;
		1313	}
		1314
		1315	$done{$k} = delete $todo{$k};
		1316	push @EXTS, $v->{pkg};
		1317	$progress = 1;
1054	1	1318	}
1055	} or warn "$ext not loaded: $@";	1319
		1320	skip:
		1321	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1322	unless $progress;
		1323	}
1056	}	1324	};
1057	}	1325	}
1058		1326
1059	#############################################################################	1327	#############################################################################
1060	# load/save/clean perl data associated with a map
1061		1328
1062	*cf::mapsupport::on_clean = sub {	1329	=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		1330
1097	=head2 CORE EXTENSIONS	1331	=head2 CORE EXTENSIONS
1098		1332
1099	Functions and methods that extend core crossfire objects.	1333	Functions and methods that extend core crossfire objects.
1100		1334
…		…
1106		1340
1107	=head3 cf::player	1341	=head3 cf::player
1108		1342
1109	=over 4	1343	=over 4
1110		1344
		1345	=item cf::player::num_playing
		1346
		1347	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1348
		1349	=cut
		1350
		1351	sub num_playing {
		1352	scalar grep
		1353	$_->ob->map
		1354	&& !$_->hidden
		1355	&& !$_->ob->flag (cf::FLAG_WIZ),
		1356	cf::player::list
		1357	}
		1358
1111	=item cf::player::find $login	1359	=item cf::player::find $login
1112		1360
1113	Returns the given player object, loading it if necessary (might block).	1361	Returns the given player object, loading it if necessary (might block).
1114		1362
1115	=cut	1363	=cut
1116		1364
1117	sub playerdir($) {	1365	sub playerdir($) {
1118	cf::localdir	1366	"$PLAYERDIR/"
1119	. "/"
1120	. cf::playerdir
1121	. "/"
1122	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1367	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1123	}	1368	}
1124		1369
1125	sub path($) {	1370	sub path($) {
1126	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1371	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1127		1372
1128	(playerdir $login) . "/$login.pl"	1373	(playerdir $login) . "/playerdata"
1129	}	1374	}
1130		1375
1131	sub find_active($) {	1376	sub find_active($) {
1132	$cf::PLAYER{$_[0]}	1377	$cf::PLAYER{$_[0]}
1133	and $cf::PLAYER{$_[0]}->active	1378	and $cf::PLAYER{$_[0]}->active
…		…
1136		1381
1137	sub exists($) {	1382	sub exists($) {
1138	my ($login) = @_;	1383	my ($login) = @_;
1139		1384
1140	$cf::PLAYER{$login}	1385	$cf::PLAYER{$login}
1141	or cf::sync_job { !aio_stat $login }	1386	or cf::sync_job { !aio_stat path $login }
1142	}	1387	}
1143		1388
1144	sub find($) {	1389	sub find($) {
1145	return $cf::PLAYER{$_[0]} || do {	1390	return $cf::PLAYER{$_[0]} || do {
1146	my $login = $_[0];	1391	my $login = $_[0];
1147		1392
1148	my $guard = cf::lock_acquire "user_find:$login";	1393	my $guard = cf::lock_acquire "user_find:$login";
1149		1394
1150	$cf::PLAYER{$_[0]} || do {	1395	$cf::PLAYER{$_[0]} || do {
1151	my $pl = load_pl path $login	1396	# rename old playerfiles to new ones
		1397	#TODO: remove when no longer required
		1398	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1399	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1400	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1401	aio_unlink +(playerdir $login) . "/$login.pl";
		1402
		1403	my $f = new_from_file cf::object::thawer path $login
1152	or return;	1404	or return;
		1405
		1406	my $pl = cf::player::load_pl $f
		1407	or return;
		1408	local $cf::PLAYER_LOADING{$login} = $pl;
		1409	$f->resolve_delayed_derefs;
1153	$cf::PLAYER{$login} = $pl	1410	$cf::PLAYER{$login} = $pl
1154	}	1411	}
1155	}	1412	}
1156	}	1413	}
1157		1414
…		…
1167		1424
1168	aio_mkdir playerdir $pl, 0770;	1425	aio_mkdir playerdir $pl, 0770;
1169	$pl->{last_save} = $cf::RUNTIME;	1426	$pl->{last_save} = $cf::RUNTIME;
1170		1427
1171	$pl->save_pl ($path);	1428	$pl->save_pl ($path);
1172	Coro::cede;	1429	cf::cede_to_tick;
1173	}	1430	}
1174		1431
1175	sub new($) {	1432	sub new($) {
1176	my ($login) = @_;	1433	my ($login) = @_;
1177		1434
…		…
1183	$cf::PLAYER{$login} = $self;	1440	$cf::PLAYER{$login} = $self;
1184		1441
1185	$self	1442	$self
1186	}	1443	}
1187		1444
		1445	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1446
		1447	=cut
		1448
		1449	sub send_msg {
		1450	my $ns = shift->ns
		1451	or return;
		1452	$ns->send_msg (@_);
		1453	}
		1454
1188	=item $pl->quit_character	1455	=item $pl->quit_character
1189		1456
1190	Nukes the player without looking back. If logged in, the connection will	1457	Nukes the player without looking back. If logged in, the connection will
1191	be destroyed. May block for a long time.	1458	be destroyed. May block for a long time.
1192		1459
1193	=cut	1460	=cut
1194		1461
1195	sub quit_character {	1462	sub quit_character {
1196	my ($pl) = @_;	1463	my ($pl) = @_;
		1464
		1465	my $name = $pl->ob->name;
1197		1466
1198	$pl->{deny_save} = 1;	1467	$pl->{deny_save} = 1;
1199	$pl->password ("*"); # this should lock out the player until we nuked the dir	1468	$pl->password ("*"); # this should lock out the player until we nuked the dir
1200		1469
1201	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1470	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1206	my $path = playerdir $pl;	1475	my $path = playerdir $pl;
1207	my $temp = "$path~$cf::RUNTIME~deleting~";	1476	my $temp = "$path~$cf::RUNTIME~deleting~";
1208	aio_rename $path, $temp;	1477	aio_rename $path, $temp;
1209	delete $cf::PLAYER{$pl->ob->name};	1478	delete $cf::PLAYER{$pl->ob->name};
1210	$pl->destroy;	1479	$pl->destroy;
		1480
		1481	my $prefix = qr<^~\Q$name\E/>;
		1482
		1483	# nuke player maps
		1484	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1485
1211	IO::AIO::aio_rmtree $temp;	1486	IO::AIO::aio_rmtree $temp;
		1487	}
		1488
		1489	=item $pl->kick
		1490
		1491	Kicks a player out of the game. This destroys the connection.
		1492
		1493	=cut
		1494
		1495	sub kick {
		1496	my ($pl, $kicker) = @_;
		1497
		1498	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1499	$pl->killer ("kicked");
		1500	$pl->ns->destroy;
1212	}	1501	}
1213		1502
1214	=item cf::player::list_logins	1503	=item cf::player::list_logins
1215		1504
1216	Returns am arrayref of all valid playernames in the system, can take a	1505	Returns am arrayref of all valid playernames in the system, can take a
1217	while and may block, so not sync_job-capable, ever.	1506	while and may block, so not sync_job-capable, ever.
1218		1507
1219	=cut	1508	=cut
1220		1509
1221	sub list_logins {	1510	sub list_logins {
1222	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1511	my $dirs = aio_readdir $PLAYERDIR
1223	or return [];	1512	or return [];
1224		1513
1225	my @logins;	1514	my @logins;
1226		1515
1227	for my $login (@$dirs) {	1516	for my $login (@$dirs) {
		1517	my $path = path $login;
		1518
		1519	# a .pst is a dead give-away for a valid player
		1520	unless (-e "$path.pst") {
1228	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1521	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1229	aio_read $fh, 0, 512, my $buf, 0 or next;	1522	aio_read $fh, 0, 512, my $buf, 0 or next;
1230	$buf !~ /^password -------------$/ or next; # official not-valid tag	1523	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1524	}
1231		1525
1232	utf8::decode $login;	1526	utf8::decode $login;
1233	push @logins, $login;	1527	push @logins, $login;
1234	}	1528	}
1235		1529
1236	\@logins	1530	\@logins
1237	}	1531	}
1238		1532
1239	=item $player->maps	1533	=item $player->maps
1240		1534
1241	Returns an arrayref of cf::path's of all maps that are private for this	1535	Returns an arrayref of map paths that are private for this
1242	player. May block.	1536	player. May block.
1243		1537
1244	=cut	1538	=cut
1245		1539
1246	sub maps($) {	1540	sub maps($) {
1247	my ($pl) = @_;	1541	my ($pl) = @_;
		1542
		1543	$pl = ref $pl ? $pl->ob->name : $pl;
1248		1544
1249	my $files = aio_readdir playerdir $pl	1545	my $files = aio_readdir playerdir $pl
1250	or return;	1546	or return;
1251		1547
1252	my @paths;	1548	my @paths;
1253		1549
1254	for (@$files) {	1550	for (@$files) {
1255	utf8::decode $_;	1551	utf8::decode $_;
1256	next if /\.(?:pl|pst)$/;	1552	next if /\.(?:pl|pst)$/;
1257	next unless /^$PATH_SEP/;	1553	next unless /^$PATH_SEP/o;
1258		1554
1259	s/$PATH_SEP/\//g;	1555	push @paths, cf::map::normalise "~$pl/$_";
1260	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1261	}	1556	}
1262		1557
1263	\@paths	1558	\@paths
1264	}	1559	}
1265		1560
		1561	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1562
		1563	Expand crossfire pod fragments into protocol xml.
		1564
		1565	=cut
		1566
		1567	use re 'eval';
		1568
		1569	my $group;
		1570	my $interior; $interior = qr{
		1571	# match a pod interior sequence sans C<< >>
		1572	(?:
		1573	\ (.*?)\ (?{ $group = $^N })
		1574	| < (??{$interior}) >
		1575	)
		1576	}x;
		1577
		1578	sub expand_cfpod {
		1579	my ($self, $pod) = @_;
		1580
		1581	my $xml;
		1582
		1583	while () {
		1584	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1585	$group = $1;
		1586
		1587	$group =~ s/&/&amp;/g;
		1588	$group =~ s/</&lt;/g;
		1589
		1590	$xml .= $group;
		1591	} elsif ($pod =~ m%\G
		1592	([BCGHITU])
		1593	<
		1594	(?:
		1595	([^<>]*) (?{ $group = $^N })
		1596	| < $interior >
		1597	)
		1598	>
		1599	%gcsx
		1600	) {
		1601	my ($code, $data) = ($1, $group);
		1602
		1603	if ($code eq "B") {
		1604	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1605	} elsif ($code eq "I") {
		1606	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1607	} elsif ($code eq "U") {
		1608	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1609	} elsif ($code eq "C") {
		1610	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1611	} elsif ($code eq "T") {
		1612	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1613	} elsif ($code eq "G") {
		1614	my ($male, $female) = split /\|/, $data;
		1615	$data = $self->gender ? $female : $male;
		1616	$xml .= expand_cfpod ($self, $data);
		1617	} elsif ($code eq "H") {
		1618	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1619	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1620	"")
		1621	[$self->{hintmode}];
		1622	} else {
		1623	$xml .= "error processing '$code($data)' directive";
		1624	}
		1625	} else {
		1626	if ($pod =~ /\G(.+)/) {
		1627	warn "parse error while expanding $pod (at $1)";
		1628	}
		1629	last;
		1630	}
		1631	}
		1632
		1633	for ($xml) {
		1634	# create single paragraphs (very hackish)
		1635	s/(?<=\S)\n(?=\w)/ /g;
		1636
		1637	# compress some whitespace
		1638	s/\s+\n/\n/g; # ws line-ends
		1639	s/\n\n+/\n/g; # double lines
		1640	s/^\n+//; # beginning lines
		1641	s/\n+$//; # ending lines
		1642	}
		1643
		1644	$xml
		1645	}
		1646
		1647	no re 'eval';
		1648
		1649	sub hintmode {
		1650	$_[0]{hintmode} = $_[1] if @_ > 1;
		1651	$_[0]{hintmode}
		1652	}
		1653
1266	=item $player->ext_reply ($msgid, $msgtype, %msg)	1654	=item $player->ext_reply ($msgid, @msg)
1267		1655
1268	Sends an ext reply to the player.	1656	Sends an ext reply to the player.
1269		1657
1270	=cut	1658	=cut
1271		1659
1272	sub ext_reply($$$%) {	1660	sub ext_reply($$@) {
1273	my ($self, $id, %msg) = @_;	1661	my ($self, $id, @msg) = @_;
1274		1662
1275	$msg{msgid} = $id;	1663	$self->ns->ext_reply ($id, @msg)
1276
1277	$self->send ("ext " . cf::to_json \%msg);
1278	}	1664	}
1279		1665
1280	package cf;	1666	=item $player->ext_msg ($type, @msg)
		1667
		1668	Sends an ext event to the client.
		1669
		1670	=cut
		1671
		1672	sub ext_msg($$@) {
		1673	my ($self, $type, @msg) = @_;
		1674
		1675	$self->ns->ext_msg ($type, @msg);
		1676	}
		1677
		1678	=head3 cf::region
		1679
		1680	=over 4
		1681
		1682	=cut
		1683
		1684	package cf::region;
		1685
		1686	=item cf::region::find_by_path $path
		1687
		1688	Tries to decuce the likely region for a map knowing only its path.
		1689
		1690	=cut
		1691
		1692	sub find_by_path($) {
		1693	my ($path) = @_;
		1694
		1695	my ($match, $specificity);
		1696
		1697	for my $region (list) {
		1698	if ($region->{match} && $path =~ $region->{match}) {
		1699	($match, $specificity) = ($region, $region->specificity)
		1700	if $region->specificity > $specificity;
		1701	}
		1702	}
		1703
		1704	$match
		1705	}
1281		1706
1282	=back	1707	=back
1283
1284		1708
1285	=head3 cf::map	1709	=head3 cf::map
1286		1710
1287	=over 4	1711	=over 4
1288		1712
…		…
1291	package cf::map;	1715	package cf::map;
1292		1716
1293	use Fcntl;	1717	use Fcntl;
1294	use Coro::AIO;	1718	use Coro::AIO;
1295		1719
		1720	use overload
		1721	'""' => \&as_string,
		1722	fallback => 1;
		1723
1296	our $MAX_RESET = 3600;	1724	our $MAX_RESET = 3600;
1297	our $DEFAULT_RESET = 3000;	1725	our $DEFAULT_RESET = 3000;
1298		1726
1299	sub generate_random_map {	1727	sub generate_random_map {
1300	my ($path, $rmp) = @_;	1728	my ($self, $rmp) = @_;
1301
1302	# mit "rum" bekleckern, nicht	1729	# mit "rum" bekleckern, nicht
1303	cf::map::_create_random_map	1730	$self->_create_random_map (
1304	$path,
1305	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1731	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1306	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1732	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1307	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1733	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1308	$rmp->{exit_on_final_map},	1734	$rmp->{exit_on_final_map},
1309	$rmp->{xsize}, $rmp->{ysize},	1735	$rmp->{xsize}, $rmp->{ysize},
1310	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1736	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1311	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1737	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1312	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1738	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1313	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1739	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1314	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1740	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1315	(cf::region::find $rmp->{region})	1741	(cf::region::find $rmp->{region}), $rmp->{custom}
		1742	)
		1743	}
		1744
		1745	=item cf::map->register ($regex, $prio)
		1746
		1747	Register a handler for the map path matching the given regex at the
		1748	givne priority (higher is better, built-in handlers have priority 0, the
		1749	default).
		1750
		1751	=cut
		1752
		1753	sub register {
		1754	my (undef, $regex, $prio) = @_;
		1755	my $pkg = caller;
		1756
		1757	no strict;
		1758	push @{"$pkg\::ISA"}, __PACKAGE__;
		1759
		1760	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1761	}
		1762
		1763	# also paths starting with '/'
		1764	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1765
		1766	sub thawer_merge {
		1767	my ($self, $merge) = @_;
		1768
		1769	# we have to keep some variables in memory intact
		1770	local $self->{path};
		1771	local $self->{load_path};
		1772
		1773	$self->SUPER::thawer_merge ($merge);
		1774	}
		1775
		1776	sub normalise {
		1777	my ($path, $base) = @_;
		1778
		1779	$path = "$path"; # make sure its a string
		1780
		1781	$path =~ s/\.map$//;
		1782
		1783	# map plan:
		1784	#
		1785	# /! non-realised random map exit (special hack!)
		1786	# {... are special paths that are not being touched
		1787	# ?xxx/... are special absolute paths
		1788	# ?random/... random maps
		1789	# /... normal maps
		1790	# ~user/... per-player map of a specific user
		1791
		1792	$path =~ s/$PATH_SEP/\//go;
		1793
		1794	# treat it as relative path if it starts with
		1795	# something that looks reasonable
		1796	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1797	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1798
		1799	$base =~ s{[^/]+/?$}{};
		1800	$path = "$base/$path";
		1801	}
		1802
		1803	for ($path) {
		1804	redo if s{//}{/};
		1805	redo if s{/\.?/}{/};
		1806	redo if s{/[^/]+/\.\./}{/};
		1807	}
		1808
		1809	$path
		1810	}
		1811
		1812	sub new_from_path {
		1813	my (undef, $path, $base) = @_;
		1814
		1815	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1816
		1817	$path = normalise $path, $base;
		1818
		1819	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1820	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1821	my $self = bless cf::map::new, $pkg;
		1822	$self->{path} = $path; $self->path ($path);
		1823	$self->init; # pass $1 etc.
		1824	return $self;
		1825	}
		1826	}
		1827
		1828	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1829	()
		1830	}
		1831
		1832	sub init {
		1833	my ($self) = @_;
		1834
		1835	$self
		1836	}
		1837
		1838	sub as_string {
		1839	my ($self) = @_;
		1840
		1841	"$self->{path}"
		1842	}
		1843
		1844	# the displayed name, this is a one way mapping
		1845	sub visible_name {
		1846	&as_string
		1847	}
		1848
		1849	# the original (read-only) location
		1850	sub load_path {
		1851	my ($self) = @_;
		1852
		1853	"$MAPDIR/$self->{path}.map"
		1854	}
		1855
		1856	# the temporary/swap location
		1857	sub save_path {
		1858	my ($self) = @_;
		1859
		1860	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1861	"$TMPDIR/$path.map"
		1862	}
		1863
		1864	# the unique path, undef == no special unique path
		1865	sub uniq_path {
		1866	my ($self) = @_;
		1867
		1868	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1869	"$UNIQUEDIR/$path"
1316	}	1870	}
1317		1871
1318	# and all this just because we cannot iterate over	1872	# and all this just because we cannot iterate over
1319	# all maps in C++...	1873	# all maps in C++...
1320	sub change_all_map_light {	1874	sub change_all_map_light {
…		…
1322		1876
1323	$_->change_map_light ($change)	1877	$_->change_map_light ($change)
1324	for grep $_->outdoor, values %cf::MAP;	1878	for grep $_->outdoor, values %cf::MAP;
1325	}	1879	}
1326		1880
		1881	sub decay_objects {
		1882	my ($self) = @_;
		1883
		1884	return if $self->{deny_reset};
		1885
		1886	$self->do_decay_objects;
		1887	}
		1888
		1889	sub unlink_save {
		1890	my ($self) = @_;
		1891
		1892	utf8::encode (my $save = $self->save_path);
		1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1894	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1895	}
		1896
1327	sub try_load_header($) {	1897	sub load_header_from($) {
1328	my ($path) = @_;	1898	my ($self, $path) = @_;
1329		1899
1330	utf8::encode $path;	1900	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1332	or return;	1902	or return;
1333		1903
1334	my $map = cf::map::new	1904	$self->_load_header ($f)
1335	or return;	1905	or return;
1336		1906
1337	# for better error messages only, will be overwritten	1907	local $MAP_LOADING{$self->{path}} = $self;
1338	$map->path ($path);	1908	$f->resolve_delayed_derefs;
1339		1909
1340	$map->load_header ($path)	1910	$self->{load_path} = $path;
		1911
		1912	1
		1913	}
		1914
		1915	sub load_header_orig {
		1916	my ($self) = @_;
		1917
		1918	$self->load_header_from ($self->load_path)
		1919	}
		1920
		1921	sub load_header_temp {
		1922	my ($self) = @_;
		1923
		1924	$self->load_header_from ($self->save_path)
		1925	}
		1926
		1927	sub prepare_temp {
		1928	my ($self) = @_;
		1929
		1930	$self->last_access ((delete $self->{last_access})
		1931	|| $cf::RUNTIME); #d#
		1932	# safety
		1933	$self->{instantiate_time} = $cf::RUNTIME
		1934	if $self->{instantiate_time} > $cf::RUNTIME;
		1935	}
		1936
		1937	sub prepare_orig {
		1938	my ($self) = @_;
		1939
		1940	$self->{load_original} = 1;
		1941	$self->{instantiate_time} = $cf::RUNTIME;
		1942	$self->last_access ($cf::RUNTIME);
		1943	$self->instantiate;
		1944	}
		1945
		1946	sub load_header {
		1947	my ($self) = @_;
		1948
		1949	if ($self->load_header_temp) {
		1950	$self->prepare_temp;
		1951	} else {
		1952	$self->load_header_orig
1341	or return;	1953	or return;
		1954	$self->prepare_orig;
		1955	}
1342		1956
1343	$map->{load_path} = $path;	1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
1344		1959
1345	$map	1960	$self->default_region (cf::region::find_by_path $self->{path})
		1961	unless $self->default_region;
		1962
		1963	1
1346	}	1964	}
1347		1965
1348	sub find;	1966	sub find;
1349	sub find {	1967	sub find {
1350	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1351		1969
1352	#warn "find<$path,$origin>\n";#d#
1353
1354	$path = new cf::path $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1355	my $key = $path->as_string;
1356		1971
		1972	cf::lock_wait "map_data:$path";#d#remove
1357	cf::lock_wait "map_find:$key";	1973	cf::lock_wait "map_find:$path";
1358		1974
1359	$cf::MAP{$key} || do {	1975	$cf::MAP{$path} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	1976	my $guard1 = cf::lock_acquire "map_find:$path";
		1977	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1361		1978
1362	# do it the slow way	1979	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;	1980	or return;
1381		1981
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;	1982	$map->{last_save} = $cf::RUNTIME;
1394		1983
1395	Coro::cede;	1984	$map->load_header
		1985	or return;
1396		1986
1397	if ($map->should_reset) {	1987	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1988	# doing this can freeze the server in a sync job, obviously
		1989	#$cf::WAIT_FOR_TICK->wait;
		1990	undef $guard1;
		1991	undef $guard2;
1398	$map->reset;	1992	$map->reset;
1399	undef $guard;
1400	$map = find $path	1993	return find $path;
1401	or return;
1402	}	1994	}
1403		1995
1404	$cf::MAP{$key} = $map	1996	$cf::MAP{$path} = $map
1405	}	1997	}
1406	}	1998	}
		1999
		2000	sub pre_load { }
		2001	sub post_load { }
1407		2002
1408	sub load {	2003	sub load {
1409	my ($self) = @_;	2004	my ($self) = @_;
1410		2005
		2006	local $self->{deny_reset} = 1; # loading can take a long time
		2007
1411	my $path = $self->{path};	2008	my $path = $self->{path};
		2009
		2010	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2011	my $guard = cf::lock_acquire "map_data:$path";
1413		2012
		2013	return unless $self->valid;
1414	return if $self->in_memory != cf::MAP_SWAPPED;	2014	return unless $self->in_memory == cf::MAP_SWAPPED;
1415		2015
1416	$self->in_memory (cf::MAP_LOADING);	2016	$self->in_memory (cf::MAP_LOADING);
1417		2017
1418	$self->alloc;	2018	$self->alloc;
1419	$self->load_objects ($self->{load_path}, 1)	2019
		2020	$self->pre_load;
		2021	cf::cede_to_tick;
		2022
		2023	my $f = new_from_file cf::object::thawer $self->{load_path};
		2024	$f->skip_block;
		2025	$self->_load_objects ($f)
1420	or return;	2026	or return;
1421		2027
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2028	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};	2029	if delete $self->{load_original};
1424		2030
1425	if (my $uniq = $path->uniq_path) {	2031	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	2032	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	2033	unless (aio_stat $uniq) {
		2034	if (my $f = new_from_file cf::object::thawer $uniq) {
1428	$self->clear_unique_items;	2035	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	2036	$self->_load_objects ($f);
		2037	$f->resolve_delayed_derefs;
		2038	}
1430	}	2039	}
1431	}	2040	}
1432		2041
1433	Coro::cede;	2042	$f->resolve_delayed_derefs;
1434		2043
		2044	cf::cede_to_tick;
1435	# now do the right thing for maps	2045	# now do the right thing for maps
1436	$self->link_multipart_objects;	2046	$self->link_multipart_objects;
1437
1438	if ($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)	2047	$self->difficulty ($self->estimate_difficulty)
1447	unless $self->difficulty;	2048	unless $self->difficulty;
		2049	cf::cede_to_tick;
		2050
		2051	unless ($self->{deny_activate}) {
		2052	$self->decay_objects;
		2053	$self->fix_auto_apply;
		2054	$self->update_buttons;
		2055	cf::cede_to_tick;
		2056	$self->set_darkness_map;
		2057	cf::cede_to_tick;
1448	$self->activate;	2058	$self->activate;
1449	}	2059	}
1450		2060
1451	Coro::cede;	2061	$self->{last_save} = $cf::RUNTIME;
		2062	$self->last_access ($cf::RUNTIME);
1452		2063
1453	$self->in_memory (cf::MAP_IN_MEMORY);	2064	$self->in_memory (cf::MAP_IN_MEMORY);
		2065	}
		2066
		2067	$self->post_load;
		2068	}
		2069
		2070	sub customise_for {
		2071	my ($self, $ob) = @_;
		2072
		2073	return find "~" . $ob->name . "/" . $self->{path}
		2074	if $self->per_player;
		2075
		2076	# return find "?party/" . $ob->name . "/" . $self->{path}
		2077	# if $self->per_party;
		2078
		2079	$self
		2080	}
		2081
		2082	# find and load all maps in the 3x3 area around a map
		2083	sub load_neighbours {
		2084	my ($map) = @_;
		2085
		2086	my @neigh; # diagonal neighbours
		2087
		2088	for (0 .. 3) {
		2089	my $neigh = $map->tile_path ($_)
		2090	or next;
		2091	$neigh = find $neigh, $map
		2092	or next;
		2093	$neigh->load;
		2094
		2095	push @neigh,
		2096	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2097	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2098	}
		2099
		2100	for (grep defined $_->[0], @neigh) {
		2101	my ($path, $origin) = @$_;
		2102	my $neigh = find $path, $origin
		2103	or next;
		2104	$neigh->load;
		2105	}
1454	}	2106	}
1455		2107
1456	sub find_sync {	2108	sub find_sync {
1457	my ($path, $origin) = @_;	2109	my ($path, $origin) = @_;
1458		2110
1459	cf::sync_job { cf::map::find $path, $origin }	2111	cf::sync_job { find $path, $origin }
1460	}	2112	}
1461		2113
1462	sub do_load_sync {	2114	sub do_load_sync {
1463	my ($map) = @_;	2115	my ($map) = @_;
1464		2116
		2117	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2118	if $Coro::current == $Coro::main;
		2119
1465	cf::sync_job { $map->load };	2120	cf::sync_job { $map->load };
		2121	}
		2122
		2123	our %MAP_PREFETCH;
		2124	our $MAP_PREFETCHER = undef;
		2125
		2126	sub find_async {
		2127	my ($path, $origin, $load) = @_;
		2128
		2129	$path = normalise $path, $origin && $origin->{path};
		2130
		2131	if (my $map = $cf::MAP{$path}) {
		2132	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2133	}
		2134
		2135	$MAP_PREFETCH{$path} |= $load;
		2136
		2137	$MAP_PREFETCHER ||= cf::async {
		2138	$Coro::current->{desc} = "map prefetcher";
		2139
		2140	while (%MAP_PREFETCH) {
		2141	while (my ($k, $v) = each %MAP_PREFETCH) {
		2142	if (my $map = find $k) {
		2143	$map->load if $v;
		2144	}
		2145
		2146	delete $MAP_PREFETCH{$k};
		2147	}
		2148	}
		2149	undef $MAP_PREFETCHER;
		2150	};
		2151	$MAP_PREFETCHER->prio (6);
		2152
		2153	()
1466	}	2154	}
1467		2155
1468	sub save {	2156	sub save {
1469	my ($self) = @_;	2157	my ($self) = @_;
1470		2158
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
1472		2160
1473	$self->{last_save} = $cf::RUNTIME;	2161	$self->{last_save} = $cf::RUNTIME;
1474		2162
1475	return unless $self->dirty;	2163	return unless $self->dirty;
1476		2164
1477	my $save = $self->{path}->save_path; utf8::encode $save;	2165	my $save = $self->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2166	my $uniq = $self->uniq_path; utf8::encode $uniq;
1479		2167
1480	$self->{load_path} = $save;	2168	$self->{load_path} = $save;
1481		2169
1482	return if $self->{deny_save};	2170	return if $self->{deny_save};
1483		2171
1484	local $self->{last_access} = $self->last_access;#d#	2172	local $self->{last_access} = $self->last_access;#d#
1485		2173
1486	cf::async {	2174	cf::async {
		2175	$Coro::current->{desc} = "map player save";
1487	$_->contr->save for $self->players;	2176	$_->contr->save for $self->players;
1488	};	2177	};
1489		2178
1490	if ($uniq) {	2179	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2180	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);	2181	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {	2182	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2183	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}	2184	}
1496	}	2185	}
1497		2186
1498	sub swap_out {	2187	sub swap_out {
1499	my ($self) = @_;	2188	my ($self) = @_;
1500		2189
1501	# save first because save cedes	2190	# save first because save cedes
1502	$self->save;	2191	$self->save;
1503		2192
1504	my $lock = cf::lock_acquire "map_data:" . $self->path;	2193	my $lock = cf::lock_acquire "map_data:$self->{path}";
1505		2194
1506	return if $self->players;	2195	return if $self->players;
1507	return if $self->in_memory != cf::MAP_IN_MEMORY;	2196	return if $self->in_memory != cf::MAP_IN_MEMORY;
1508	return if $self->{deny_save};	2197	return if $self->{deny_save};
1509		2198
		2199	$self->in_memory (cf::MAP_SWAPPED);
		2200
		2201	$self->deactivate;
		2202	$_->clear_links_to ($self) for values %cf::MAP;
1510	$self->clear;	2203	$self->clear;
1511	$self->in_memory (cf::MAP_SWAPPED);
1512	}	2204	}
1513		2205
1514	sub reset_at {	2206	sub reset_at {
1515	my ($self) = @_;	2207	my ($self) = @_;
1516		2208
1517	# TODO: safety, remove and allow resettable per-player maps	2209	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};
1519	return 1e99 if $self->{deny_reset};	2210	return 1e99 if $self->{deny_reset};
1520		2211
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2212	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2213	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		2214
…		…
1528	my ($self) = @_;	2219	my ($self) = @_;
1529		2220
1530	$self->reset_at <= $cf::RUNTIME	2221	$self->reset_at <= $cf::RUNTIME
1531	}	2222	}
1532		2223
1533	sub unlink_save {
1534	my ($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	$self->save;
1552	}
1553
1554	sub reset {	2224	sub reset {
1555	my ($self) = @_;	2225	my ($self) = @_;
1556		2226
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	2227	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		2228
1559	return if $self->players;	2229	return if $self->players;
1560	return if $self->{path}{user_rel};#d#
1561		2230
1562	warn "resetting map ", $self->path;#d#	2231	warn "resetting map ", $self->path;
		2232
		2233	$self->in_memory (cf::MAP_SWAPPED);
		2234
		2235	# need to save uniques path
		2236	unless ($self->{deny_save}) {
		2237	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2238
		2239	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2240	if $uniq;
		2241	}
1563		2242
1564	delete $cf::MAP{$self->path};	2243	delete $cf::MAP{$self->path};
1565		2244
		2245	$self->deactivate;
1566	$_->clear_links_to ($self) for values %cf::MAP;	2246	$_->clear_links_to ($self) for values %cf::MAP;
		2247	$self->clear;
1567		2248
1568	$self->unlink_save;	2249	$self->unlink_save;
1569	$self->destroy;	2250	$self->destroy;
1570	}	2251	}
1571		2252
1572	my $nuke_counter = "aaaa";	2253	my $nuke_counter = "aaaa";
1573		2254
1574	sub nuke {	2255	sub nuke {
1575	my ($self) = @_;	2256	my ($self) = @_;
1576		2257
		2258	{
		2259	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2260
		2261	delete $cf::MAP{$self->path};
		2262
		2263	$self->unlink_save;
		2264
		2265	bless $self, "cf::map";
		2266	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	2267	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	2268	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	2269	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2270
		2271	$cf::MAP{$self->path} = $self;
		2272	}
		2273
1580	$self->reset; # polite request, might not happen	2274	$self->reset; # polite request, might not happen
1581	}	2275	}
1582		2276
1583	sub customise_for {	2277	=item $maps = cf::map::tmp_maps
1584	my ($map, $ob) = @_;
1585		2278
1586	if ($map->per_player) {	2279	Returns an arrayref with all map paths of currently instantiated and saved
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2280	maps. May block.
		2281
		2282	=cut
		2283
		2284	sub tmp_maps() {
1588	}	2285	[
1589		2286	map {
1590	$map	2287	utf8::decode $_;
		2288	/\.map$/
		2289	? normalise $_
		2290	: ()
		2291	} @{ aio_readdir $TMPDIR or [] }
		2292	]
1591	}	2293	}
1592		2294
1593	sub emergency_save {	2295	=item $maps = cf::map::random_maps
1594	my $freeze_guard = cf::freeze_mainloop;
1595		2296
1596	warn "enter emergency perl save\n";	2297	Returns an arrayref with all map paths of currently instantiated and saved
		2298	random maps. May block.
1597		2299
1598	cf::sync_job {	2300	=cut
1599	warn "begin emergency player save\n";
1600	$_->save for values %cf::PLAYER;
1601	warn "end emergency player save\n";
1602		2301
1603	warn "begin emergency map save\n";	2302	sub random_maps() {
1604	$_->save for values %cf::MAP;	2303	[
1605	warn "end emergency map save\n";	2304	map {
1606	};	2305	utf8::decode $_;
		2306	/\.map$/
		2307	? normalise "?random/$_"
		2308	: ()
		2309	} @{ aio_readdir $RANDOMDIR or [] }
		2310	]
		2311	}
1607		2312
1608	warn "leave emergency perl save\n";	2313	=item cf::map::unique_maps
		2314
		2315	Returns an arrayref of paths of all shared maps that have
		2316	instantiated unique items. May block.
		2317
		2318	=cut
		2319
		2320	sub unique_maps() {
		2321	[
		2322	map {
		2323	utf8::decode $_;
		2324	/\.map$/
		2325	? normalise $_
		2326	: ()
		2327	} @{ aio_readdir $UNIQUEDIR or [] }
		2328	]
1609	}	2329	}
1610		2330
1611	package cf;	2331	package cf;
1612		2332
1613	=back	2333	=back
1614		2334
		2335	=head3 cf::object
		2336
		2337	=cut
		2338
		2339	package cf::object;
		2340
		2341	=over 4
		2342
		2343	=item $ob->inv_recursive
		2344
		2345	Returns the inventory of the object _and_ their inventories, recursively.
		2346
		2347	=cut
		2348
		2349	sub inv_recursive_;
		2350	sub inv_recursive_ {
		2351	map { $_, inv_recursive_ $_->inv } @_
		2352	}
		2353
		2354	sub inv_recursive {
		2355	inv_recursive_ inv $_[0]
		2356	}
		2357
		2358	=item $ref = $ob->ref
		2359
		2360	creates and returns a persistent reference to an objetc that can be stored as a string.
		2361
		2362	=item $ob = cf::object::deref ($refstring)
		2363
		2364	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2365	even if the object actually exists. May block.
		2366
		2367	=cut
		2368
		2369	sub deref {
		2370	my ($ref) = @_;
		2371
		2372	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2373	my ($uuid, $name) = ($1, $2);
		2374	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2375	or return;
		2376	$pl->ob->uuid eq $uuid
		2377	or return;
		2378
		2379	$pl->ob
		2380	} else {
		2381	warn "$ref: cannot resolve object reference\n";
		2382	undef
		2383	}
		2384	}
		2385
		2386	package cf;
		2387
		2388	=back
1615		2389
1616	=head3 cf::object::player	2390	=head3 cf::object::player
1617		2391
1618	=over 4	2392	=over 4
1619		2393
…		…
1633		2407
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2408	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2409
1636	if ($self->{record_replies}) {	2410	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2411	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2412
1638	} else {	2413	} else {
		2414	my $pl = $self->contr;
		2415
		2416	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2417	my $dialog = $pl->{npc_dialog};
		2418	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2419
		2420	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2421	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2422	$self->message ($msg, $flags);
		2423	}
1641	}	2424	}
		2425	}
		2426
		2427	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2428
		2429	=cut
		2430
		2431	sub cf::object::send_msg {
		2432	my $pl = shift->contr
		2433	or return;
		2434	$pl->send_msg (@_);
1642	}	2435	}
1643		2436
1644	=item $player_object->may ("access")	2437	=item $player_object->may ("access")
1645		2438
1646	Returns wether the given player is authorized to access resource "access"	2439	Returns wether the given player is authorized to access resource "access"
…		…
1659		2452
1660	=item $player_object->enter_link	2453	=item $player_object->enter_link
1661		2454
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2455	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2456
1664	The player should be reaosnably safe there for short amounts of time. You	2457	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.	2458	I<MUST> call C<leave_link> as soon as possible, though.
1666		2459
		2460	Will never block.
		2461
1667	=item $player_object->leave_link ($map, $x, $y)	2462	=item $player_object->leave_link ($map, $x, $y)
1668		2463
1669	Moves the player out of the specila link map onto the given map. If the	2464	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	2465	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	2466	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	2467	fails, to the emergency map position.
1673		2468
1674	Might block.	2469	Might block.
1675		2470
1676	=cut	2471	=cut
		2472
		2473	sub link_map {
		2474	unless ($LINK_MAP) {
		2475	$LINK_MAP = cf::map::find "{link}"
		2476	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2477	$LINK_MAP->load;
		2478	}
		2479
		2480	$LINK_MAP
		2481	}
1677		2482
1678	sub cf::object::player::enter_link {	2483	sub cf::object::player::enter_link {
1679	my ($self) = @_;	2484	my ($self) = @_;
1680		2485
1681	$self->deactivate_recursive;	2486	$self->deactivate_recursive;
1682		2487
1683	return if $self->map == $LINK_MAP;	2488	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		2489
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	2491	if $self->map && $self->map->{path} ne "{link}";
1687		2492
1688	$self->enter_map ($LINK_MAP, 20, 20);	2493	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1689	}	2494	}
1690		2495
1691	sub cf::object::player::leave_link {	2496	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	2497	my ($self, $map, $x, $y) = @_;
		2498
		2499	return unless $self->contr->active;
1693		2500
1694	my $link_pos = delete $self->{_link_pos};	2501	my $link_pos = delete $self->{_link_pos};
1695		2502
1696	unless ($map) {	2503	unless ($map) {
1697	# restore original map position	2504	# restore original map position
…		…
1711	# use -1 or undef as default coordinates, not 0, 0	2518	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	2519	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	2520	if $x <=0 && $y <= 0;
1714		2521
1715	$map->load;	2522	$map->load;
		2523	$map->load_neighbours;
1716		2524
1717	return unless $self->contr->active;	2525	return unless $self->contr->active;
1718	$self->activate_recursive;	2526	$self->activate_recursive;
		2527
		2528	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1719	$self->enter_map ($map, $x, $y);	2529	$self->enter_map ($map, $x, $y);
1720	}	2530	}
1721		2531
1722	cf::player->attach (	2532	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1723	on_logout => sub {
1724	my ($pl) = @_;
1725		2533
1726	# abort map switching before logout	2534	Moves the player to the given map-path and coordinates by first freezing
1727	if ($pl->ob->{_link_pos}) {	2535	her, loading and preparing them map, calling the provided $check callback
1728	cf::sync_job {	2536	that has to return the map if sucecssful, and then unfreezes the player on
1729	$pl->ob->leave_link	2537	the new (success) or old (failed) map position. In either case, $done will
1730	};	2538	be called at the end of this process.
1731	}
1732	},
1733	on_login => sub {
1734	my ($pl) = @_;
1735		2539
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	2540	=cut
		2541
		2542	our $GOTOGEN;
1757		2543
1758	sub cf::object::player::goto {	2544	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	2545	my ($self, $path, $x, $y, $check, $done) = @_;
1760		2546
1761	$path = new cf::path $path;	2547	# do generation counting so two concurrent goto's will be executed in-order
1762	$path ne "/" or Carp::cluck ("oy");#d#	2548	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		2549
1764	$self->enter_link;	2550	$self->enter_link;
1765		2551
1766	(async {	2552	(async {
1767	my $map = cf::map::find $path->as_string;	2553	$Coro::current->{desc} = "player::goto $path $x $y";
		2554
		2555	# *tag paths override both path and x|y
		2556	if ($path =~ /^\*(.*)$/) {
		2557	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2558	my $ob = $obs[rand @obs];
		2559
		2560	# see if we actually can go there
		2561	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2562	$ob = $obs[rand @obs];
		2563	} else {
		2564	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2565	}
		2566	# else put us there anyways for now #d#
		2567
		2568	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2569	} else {
		2570	($path, $x, $y) = (undef, undef, undef);
		2571	}
		2572	}
		2573
		2574	my $map = eval {
		2575	my $map = defined $path ? cf::map::find $path : undef;
		2576
		2577	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	2578	$map = $map->customise_for ($self);
1769		2579	$map = $check->($map) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	2580	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2581	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2582	}
1774		2583
		2584	$map
		2585	};
		2586
		2587	if ($@) {
		2588	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2589	LOG llevError | logBacktrace, Carp::longmess $@;
		2590	}
		2591
		2592	if ($gen == $self->{_goto_generation}) {
		2593	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	2594	$self->leave_link ($map, $x, $y);
		2595	}
		2596
		2597	$done->() if $done;
1776	})->prio (1);	2598	})->prio (1);
1777	}	2599	}
1778		2600
1779	=item $player_object->enter_exit ($exit_object)	2601	=item $player_object->enter_exit ($exit_object)
1780		2602
…		…
1782		2604
1783	sub parse_random_map_params {	2605	sub parse_random_map_params {
1784	my ($spec) = @_;	2606	my ($spec) = @_;
1785		2607
1786	my $rmp = { # defaults	2608	my $rmp = { # defaults
1787	xsize => 10,	2609	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2610	ysize => (cf::rndm 15, 40),
		2611	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2612	#layout => string,
1789	};	2613	};
1790		2614
1791	for (split /\n/, $spec) {	2615	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2616	my ($k, $v) = split /\s+/, $_, 2;
1793		2617
…		…
1797	$rmp	2621	$rmp
1798	}	2622	}
1799		2623
1800	sub prepare_random_map {	2624	sub prepare_random_map {
1801	my ($exit) = @_;	2625	my ($exit) = @_;
		2626
		2627	my $guard = cf::lock_acquire "exit_prepare:$exit";
1802		2628
1803	# all this does is basically replace the /! path by	2629	# all this does is basically replace the /! path by
1804	# a new random map path (?random/...) with a seed	2630	# a new random map path (?random/...) with a seed
1805	# that depends on the exit object	2631	# that depends on the exit object
1806		2632
1807	my $rmp = parse_random_map_params $exit->msg;	2633	my $rmp = parse_random_map_params $exit->msg;
1808		2634
1809	if ($exit->map) {	2635	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2636	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2637	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2638	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2639	$rmp->{origin_y} = $exit->y;
1814	}	2640	}
1815		2641
1816	$rmp->{random_seed} ||= $exit->random_seed;	2642	$rmp->{random_seed} ||= $exit->random_seed;
1817		2643
1818	my $data = cf::to_json $rmp;	2644	my $data = cf::encode_json $rmp;
1819	my $md5 = Digest::MD5::md5_hex $data;	2645	my $md5 = Digest::MD5::md5_hex $data;
		2646	my $meta = "$RANDOMDIR/$md5.meta";
1820		2647
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2648	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2649	aio_write $fh, 0, (length $data), $data, 0;
		2650	undef $fh;
		2651	aio_rename "$meta~", $meta;
1823		2652
1824	$exit->slaying ("?random/$md5");	2653	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2654	$exit->msg (undef);
1826	}	2655	}
1827	}	2656	}
…		…
1829	sub cf::object::player::enter_exit {	2658	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2659	my ($self, $exit) = @_;
1831		2660
1832	return unless $self->type == cf::PLAYER;	2661	return unless $self->type == cf::PLAYER;
1833		2662
		2663	if ($exit->slaying eq "/!") {
		2664	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2665	# the problem is that $exit might not survive long enough
		2666	# so it needs to be done right now, right here
		2667	cf::sync_job { prepare_random_map $exit };
		2668	}
		2669
		2670	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2671	my $hp = $exit->stats->hp;
		2672	my $sp = $exit->stats->sp;
		2673
1834	$self->enter_link;	2674	$self->enter_link;
1835		2675
		2676	# if exit is damned, update players death & WoR home-position
		2677	$self->contr->savebed ($slaying, $hp, $sp)
		2678	if $exit->flag (FLAG_DAMNED);
		2679
1836	(async {	2680	(async {
		2681	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2682
1837	$self->deactivate_recursive; # just to be sure	2683	$self->deactivate_recursive; # just to be sure
1838	unless (eval {	2684	unless (eval {
1839	prepare_random_map $exit	2685	$self->goto ($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		2686
1845	1;	2687	1;
1846	}) {	2688	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2689	$self->message ("Something went wrong deep within the crossfire server. "
1848	. "I'll try to bring you back to the map you were before. "	2690	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2691	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2692	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2693
1852	warn "ERROR in enter_exit: $@";	2694	warn "ERROR in enter_exit: $@";
1853	$self->leave_link;	2695	$self->leave_link;
1854	}	2696	}
1855	})->prio (1);	2697	})->prio (1);
…		…
1868		2710
1869	sub cf::client::send_drawinfo {	2711	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2712	my ($self, $text, $flags) = @_;
1871		2713
1872	utf8::encode $text;	2714	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2715	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2716	}
1875		2717
		2718	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2719
		2720	Send a drawinfo or msg packet to the client, formatting the msg for the
		2721	client if neccessary. C<$type> should be a string identifying the type of
		2722	the message, with C<log> being the default. If C<$color> is negative, suppress
		2723	the message unless the client supports the msg packet.
		2724
		2725	=cut
		2726
		2727	# non-persistent channels (usually the info channel)
		2728	our %CHANNEL = (
		2729	"c/identify" => {
		2730	id => "infobox",
		2731	title => "Identify",
		2732	reply => undef,
		2733	tooltip => "Items recently identified",
		2734	},
		2735	"c/examine" => {
		2736	id => "infobox",
		2737	title => "Examine",
		2738	reply => undef,
		2739	tooltip => "Signs and other items you examined",
		2740	},
		2741	"c/book" => {
		2742	id => "infobox",
		2743	title => "Book",
		2744	reply => undef,
		2745	tooltip => "The contents of a note or book",
		2746	},
		2747	"c/lookat" => {
		2748	id => "infobox",
		2749	title => "Look",
		2750	reply => undef,
		2751	tooltip => "What you saw there",
		2752	},
		2753	"c/who" => {
		2754	id => "infobox",
		2755	title => "Players",
		2756	reply => undef,
		2757	tooltip => "Shows players who are currently online",
		2758	},
		2759	"c/body" => {
		2760	id => "infobox",
		2761	title => "Body Parts",
		2762	reply => undef,
		2763	tooltip => "Shows which body parts you posess and are available",
		2764	},
		2765	"c/uptime" => {
		2766	id => "infobox",
		2767	title => "Uptime",
		2768	reply => undef,
		2769	tooltip => "How long the server has been running since last restart",
		2770	},
		2771	"c/mapinfo" => {
		2772	id => "infobox",
		2773	title => "Map Info",
		2774	reply => undef,
		2775	tooltip => "Information related to the maps",
		2776	},
		2777	);
		2778
		2779	sub cf::client::send_msg {
		2780	my ($self, $channel, $msg, $color, @extra) = @_;
		2781
		2782	$msg = $self->pl->expand_cfpod ($msg);
		2783
		2784	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2785
		2786	# check predefined channels, for the benefit of C
		2787	if ($CHANNEL{$channel}) {
		2788	$channel = $CHANNEL{$channel};
		2789
		2790	$self->ext_msg (channel_info => $channel)
		2791	if $self->can_msg;
		2792
		2793	$channel = $channel->{id};
		2794
		2795	} elsif (ref $channel) {
		2796	# send meta info to client, if not yet sent
		2797	unless (exists $self->{channel}{$channel->{id}}) {
		2798	$self->{channel}{$channel->{id}} = $channel;
		2799	$self->ext_msg (channel_info => $channel)
		2800	if $self->can_msg;
		2801	}
		2802
		2803	$channel = $channel->{id};
		2804	}
		2805
		2806	return unless @extra || length $msg;
		2807
		2808	if ($self->can_msg) {
		2809	# default colour, mask it out
		2810	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2811	if $color & cf::NDI_DEF;
		2812
		2813	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2814	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2815	} else {
		2816	if ($color >= 0) {
		2817	# replace some tags by gcfclient-compatible ones
		2818	for ($msg) {
		2819	1 while
		2820	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2821	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2822	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2823	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2824	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2825	}
		2826
		2827	$color &= cf::NDI_COLOR_MASK;
		2828
		2829	utf8::encode $msg;
		2830
		2831	if (0 && $msg =~ /\[/) {
		2832	# COMMAND/INFO
		2833	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2834	} else {
		2835	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2836	$self->send_packet ("drawinfo $color $msg")
		2837	}
		2838	}
		2839	}
		2840	}
		2841
		2842	=item $client->ext_msg ($type, @msg)
		2843
		2844	Sends an ext event to the client.
		2845
		2846	=cut
		2847
		2848	sub cf::client::ext_msg($$@) {
		2849	my ($self, $type, @msg) = @_;
		2850
		2851	if ($self->extcmd == 2) {
		2852	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2853	} elsif ($self->extcmd == 1) { # TODO: remove
		2854	push @msg, msgtype => "event_$type";
		2855	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2856	}
		2857	}
		2858
		2859	=item $client->ext_reply ($msgid, @msg)
		2860
		2861	Sends an ext reply to the client.
		2862
		2863	=cut
		2864
		2865	sub cf::client::ext_reply($$@) {
		2866	my ($self, $id, @msg) = @_;
		2867
		2868	if ($self->extcmd == 2) {
		2869	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2870	} elsif ($self->extcmd == 1) {
		2871	#TODO: version 1, remove
		2872	unshift @msg, msgtype => "reply", msgid => $id;
		2873	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2874	}
		2875	}
1876		2876
1877	=item $success = $client->query ($flags, "text", \&cb)	2877	=item $success = $client->query ($flags, "text", \&cb)
1878		2878
1879	Queues a query to the client, calling the given callback with	2879	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>,	2880	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>.	2881	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1882		2882
1883	Queries can fail, so check the return code. Or don't, as queries will become	2883	Queries can fail, so check the return code. Or don't, as queries will
1884	reliable at some point in the future.	2884	become reliable at some point in the future.
1885		2885
1886	=cut	2886	=cut
1887		2887
1888	sub cf::client::query {	2888	sub cf::client::query {
1889	my ($self, $flags, $text, $cb) = @_;	2889	my ($self, $flags, $text, $cb) = @_;
…		…
1897	utf8::encode $text;	2897	utf8::encode $text;
1898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1899		2899
1900	$self->send_packet ($self->{query_queue}[0][0])	2900	$self->send_packet ($self->{query_queue}[0][0])
1901	if @{ $self->{query_queue} } == 1;	2901	if @{ $self->{query_queue} } == 1;
		2902
		2903	1
1902	}	2904	}
1903		2905
1904	cf::client->attach (	2906	cf::client->attach (
		2907	on_connect => sub {
		2908	my ($ns) = @_;
		2909
		2910	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2911	},
1905	on_reply => sub {	2912	on_reply => sub {
1906	my ($ns, $msg) = @_;	2913	my ($ns, $msg) = @_;
1907		2914
1908	# this weird shuffling is so that direct followup queries	2915	# this weird shuffling is so that direct followup queries
1909	# get handled first	2916	# get handled first
1910	my $queue = delete $ns->{query_queue}	2917	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	2918	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		2919
1913	(shift @$queue)->[1]->($msg);	2920	(shift @$queue)->[1]->($msg);
		2921	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		2922
1915	push @{ $ns->{query_queue} }, @$queue;	2923	push @{ $ns->{query_queue} }, @$queue;
1916		2924
1917	if (@{ $ns->{query_queue} } == @$queue) {	2925	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	2926	if (@$queue) {
…		…
1920	} else {	2928	} else {
1921	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2929	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1922	}	2930	}
1923	}	2931	}
1924	},	2932	},
		2933	on_exticmd => sub {
		2934	my ($ns, $buf) = @_;
		2935
		2936	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2937
		2938	if (ref $msg) {
		2939	my ($type, $reply, @payload) =
		2940	"ARRAY" eq ref $msg
		2941	? @$msg
		2942	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2943
		2944	my @reply;
		2945
		2946	if (my $cb = $EXTICMD{$type}) {
		2947	@reply = $cb->($ns, @payload);
		2948	}
		2949
		2950	$ns->ext_reply ($reply, @reply)
		2951	if $reply;
		2952
		2953	} else {
		2954	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2955	}
		2956
		2957	cf::override;
		2958	},
1925	);	2959	);
1926		2960
1927	=item $client->async (\&cb)	2961	=item $client->async (\&cb)
1928		2962
1929	Create a new coroutine, running the specified callback. The coroutine will	2963	Create a new coroutine, running the specified callback. The coroutine will
…		…
1970	our $safe = new Safe "safe";	3004	our $safe = new Safe "safe";
1971	our $safe_hole = new Safe::Hole;	3005	our $safe_hole = new Safe::Hole;
1972		3006
1973	$SIG{FPE} = 'IGNORE';	3007	$SIG{FPE} = 'IGNORE';
1974		3008
1975	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3009	$safe->permit_only (Opcode::opset qw(
		3010	:base_core :base_mem :base_orig :base_math
		3011	grepstart grepwhile mapstart mapwhile
		3012	sort time
		3013	));
1976		3014
1977	# here we export the classes and methods available to script code	3015	# here we export the classes and methods available to script code
1978		3016
1979	=pod	3017	=pod
1980		3018
1981	The following fucntions and emthods are available within a safe environment:	3019	The following functions and methods are available within a safe environment:
1982		3020
1983	cf::object contr pay_amount pay_player map	3021	cf::object
		3022	contr pay_amount pay_player map x y force_find force_add destroy
		3023	insert remove name archname title slaying race decrease_ob_nr
		3024
1984	cf::object::player player	3025	cf::object::player
1985	cf::player peaceful	3026	player
1986	cf::map trigger	3027
		3028	cf::player
		3029	peaceful
		3030
		3031	cf::map
		3032	trigger
1987		3033
1988	=cut	3034	=cut
1989		3035
1990	for (	3036	for (
1991	["cf::object" => qw(contr pay_amount pay_player map)],	3037	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3038	insert remove inv name archname title slaying race
		3039	decrease_ob_nr destroy)],
1992	["cf::object::player" => qw(player)],	3040	["cf::object::player" => qw(player)],
1993	["cf::player" => qw(peaceful)],	3041	["cf::player" => qw(peaceful)],
1994	["cf::map" => qw(trigger)],	3042	["cf::map" => qw(trigger)],
1995	) {	3043	) {
1996	no strict 'refs';	3044	no strict 'refs';
…		…
2067	=back	3115	=back
2068		3116
2069	=cut	3117	=cut
2070		3118
2071	#############################################################################	3119	#############################################################################
		3120	# the server's init and main functions
2072		3121
2073	=head2 EXTENSION DATABASE SUPPORT	3122	sub load_facedata($) {
		3123	my ($path) = @_;
2074		3124
2075	Crossfire maintains a very simple database for extension use. It can	3125	# HACK to clear player env face cache, we need some signal framework
2076	currently store anything that can be serialised using Storable, which	3126	# for this (global event?)
2077	excludes objects.	3127	%ext::player_env::MUSIC_FACE_CACHE = ();
2078		3128
2079	The parameter C<$family> should best start with the name of the extension	3129	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2080	using it, it should be unique.
2081		3130
2082	=over 4	3131	warn "loading facedata from $path\n";
2083		3132
2084	=item $hashref = cf::db_get $family	3133	my $facedata;
		3134	0 < aio_load $path, $facedata
		3135	or die "$path: $!";
2085		3136
2086	Return a hashref for use by the extension C<$family>, which can be	3137	$facedata = Coro::Storable::thaw $facedata;
2087	modified. After modifications, you have to call C<cf::db_dirty> or
2088	C<cf::db_sync>.
2089		3138
2090	=item $value = cf::db_get $family => $key	3139	$facedata->{version} == 2
		3140	or cf::cleanup "$path: version mismatch, cannot proceed.";
2091		3141
2092	Returns a single value from the database	3142	# patch in the exptable
2093		3143	$facedata->{resource}{"res/exp_table"} = {
2094	=item cf::db_put $family => $hashref	3144	type => FT_RSRC,
2095		3145	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	});	3146	};
		3147	cf::cede_to_tick;
2145		3148
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}	3149	{
		3150	my $faces = $facedata->{faceinfo};
2150		3151
2151	sub db_get($;$) {	3152	while (my ($face, $info) = each %$faces) {
2152	@_ >= 2	3153	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2153	? $DB->{$_[0]}{$_[1]}	3154	cf::face::set_visibility $idx, $info->{visibility};
2154	: ($DB->{$_[0]} ||= { })	3155	cf::face::set_magicmap $idx, $info->{magicmap};
2155	}	3156	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3157	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2156		3158
2157	sub db_put($$;$) {	3159	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	},	3160	}
2171	);
2172	}
2173		3161
2174	#############################################################################	3162	while (my ($face, $info) = each %$faces) {
2175	# the server's main()	3163	next unless $info->{smooth};
		3164	my $idx = cf::face::find $face
		3165	or next;
		3166	if (my $smooth = cf::face::find $info->{smooth}) {
		3167	cf::face::set_smooth $idx, $smooth;
		3168	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3169	} else {
		3170	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3171	}
2176		3172
2177	sub cfg_load {	3173	cf::cede_to_tick;
		3174	}
		3175	}
		3176
		3177	{
		3178	my $anims = $facedata->{animinfo};
		3179
		3180	while (my ($anim, $info) = each %$anims) {
		3181	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3182	cf::cede_to_tick;
		3183	}
		3184
		3185	cf::anim::invalidate_all; # d'oh
		3186	}
		3187
		3188	{
		3189	# TODO: for gcfclient pleasure, we should give resources
		3190	# that gcfclient doesn't grok a >10000 face index.
		3191	my $res = $facedata->{resource};
		3192
		3193	my $soundconf = delete $res->{"res/sound.conf"};
		3194
		3195	while (my ($name, $info) = each %$res) {
		3196	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3197	my $data;
		3198
		3199	if ($info->{type} & 1) {
		3200	# prepend meta info
		3201
		3202	my $meta = $enc->encode ({
		3203	name => $name,
		3204	%{ $info->{meta} || {} },
		3205	});
		3206
		3207	$data = pack "(w/a*)*", $meta, $info->{data};
		3208	} else {
		3209	$data = $info->{data};
		3210	}
		3211
		3212	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3213	cf::face::set_type $idx, $info->{type};
		3214
		3215	cf::cede_to_tick;
		3216	}
		3217
		3218	if ($soundconf) {
		3219	$soundconf = $enc->decode (delete $soundconf->{data});
		3220
		3221	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3222	my $sound = $soundconf->{compat}[$_]
		3223	or next;
		3224
		3225	my $face = cf::face::find "sound/$sound->[1]";
		3226	cf::sound::set $sound->[0] => $face;
		3227	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3228	}
		3229
		3230	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3231	my $face = cf::face::find "sound/$v";
		3232	cf::sound::set $k => $face;
		3233	}
		3234	}
		3235	}
		3236
		3237	1
		3238	}
		3239
		3240	register_exticmd fx_want => sub {
		3241	my ($ns, $want) = @_;
		3242
		3243	while (my ($k, $v) = each %$want) {
		3244	$ns->fx_want ($k, $v);
		3245	}
		3246	};
		3247
		3248	sub reload_regions {
		3249	# HACK to clear player env face cache, we need some signal framework
		3250	# for this (global event?)
		3251	%ext::player_env::MUSIC_FACE_CACHE = ();
		3252
		3253	load_resource_file "$MAPDIR/regions"
		3254	or die "unable to load regions file\n";
		3255
		3256	for (cf::region::list) {
		3257	$_->{match} = qr/$_->{match}/
		3258	if exists $_->{match};
		3259	}
		3260	}
		3261
		3262	sub reload_facedata {
		3263	load_facedata "$DATADIR/facedata"
		3264	or die "unable to load facedata\n";
		3265	}
		3266
		3267	sub reload_archetypes {
		3268	load_resource_file "$DATADIR/archetypes"
		3269	or die "unable to load archetypes\n";
		3270	#d# NEED to laod twice to resolve forward references
		3271	# this really needs to be done in an extra post-pass
		3272	# (which needs to be synchronous, so solve it differently)
		3273	load_resource_file "$DATADIR/archetypes"
		3274	or die "unable to load archetypes\n";
		3275	}
		3276
		3277	sub reload_treasures {
		3278	load_resource_file "$DATADIR/treasures"
		3279	or die "unable to load treasurelists\n";
		3280	}
		3281
		3282	sub reload_resources {
		3283	warn "reloading resource files...\n";
		3284
		3285	reload_regions;
		3286	reload_facedata;
		3287	#reload_archetypes;#d#
		3288	reload_archetypes;
		3289	reload_treasures;
		3290
		3291	warn "finished reloading resource files\n";
		3292	}
		3293
		3294	sub init {
		3295	reload_resources;
		3296	}
		3297
		3298	sub reload_config {
2178	open my $fh, "<:utf8", cf::confdir . "/config"	3299	open my $fh, "<:utf8", "$CONFDIR/config"
2179	or return;	3300	or return;
2180		3301
2181	local $/;	3302	local $/;
2182	*CFG = YAML::Syck::Load <$fh>;	3303	*CFG = YAML::Syck::Load <$fh>;
2183		3304
…		…
2197		3318
2198	sub main {	3319	sub main {
2199	# we must not ever block the main coroutine	3320	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	3321	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3322	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2202	async { Event::one_event };	3323	(async {
		3324	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3325	EV::loop EV::LOOP_ONESHOT;
		3326	})->prio (Coro::PRIO_MAX);
2203	};	3327	};
2204		3328
2205	cfg_load;	3329	reload_config;
2206	db_load;	3330	db_init;
2207	load_extensions;	3331	load_extensions;
		3332
		3333	$TICK_WATCHER->start;
		3334	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2208	Event::loop;	3335	EV::loop;
2209	}	3336	}
2210		3337
2211	#############################################################################	3338	#############################################################################
2212	# initialisation	3339	# initialisation and cleanup
2213		3340
		3341	# install some emergency cleanup handlers
		3342	BEGIN {
		3343	our %SIGWATCHER = ();
		3344	for my $signal (qw(INT HUP TERM)) {
		3345	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3346	cf::cleanup "SIG$signal";
		3347	};
		3348	}
		3349	}
		3350
		3351	sub write_runtime {
		3352	my $runtime = "$LOCALDIR/runtime";
		3353
		3354	# first touch the runtime file to show we are still running:
		3355	# the fsync below can take a very very long time.
		3356
		3357	IO::AIO::aio_utime $runtime, undef, undef;
		3358
		3359	my $guard = cf::lock_acquire "write_runtime";
		3360
		3361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3362	or return;
		3363
		3364	my $value = $cf::RUNTIME + 90 + 10;
		3365	# 10 is the runtime save interval, for a monotonic clock
		3366	# 60 allows for the watchdog to kill the server.
		3367
		3368	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3369	and return;
		3370
		3371	# always fsync - this file is important
		3372	aio_fsync $fh
		3373	and return;
		3374
		3375	# touch it again to show we are up-to-date
		3376	aio_utime $fh, undef, undef;
		3377
		3378	close $fh
		3379	or return;
		3380
		3381	aio_rename "$runtime~", $runtime
		3382	and return;
		3383
		3384	warn "runtime file written.\n";
		3385
		3386	1
		3387	}
		3388
		3389	sub emergency_save() {
		3390	my $freeze_guard = cf::freeze_mainloop;
		3391
		3392	warn "enter emergency perl save\n";
		3393
		3394	cf::sync_job {
		3395	# use a peculiar iteration method to avoid tripping on perl
		3396	# refcount bugs in for. also avoids problems with players
		3397	# and maps saved/destroyed asynchronously.
		3398	warn "begin emergency player save\n";
		3399	for my $login (keys %cf::PLAYER) {
		3400	my $pl = $cf::PLAYER{$login} or next;
		3401	$pl->valid or next;
		3402	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3403	$pl->save;
		3404	}
		3405	warn "end emergency player save\n";
		3406
		3407	warn "begin emergency map save\n";
		3408	for my $path (keys %cf::MAP) {
		3409	my $map = $cf::MAP{$path} or next;
		3410	$map->valid or next;
		3411	$map->save;
		3412	}
		3413	warn "end emergency map save\n";
		3414
		3415	warn "begin emergency database checkpoint\n";
		3416	BDB::db_env_txn_checkpoint $DB_ENV;
		3417	warn "end emergency database checkpoint\n";
		3418	};
		3419
		3420	warn "leave emergency perl save\n";
		3421	}
		3422
		3423	sub post_cleanup {
		3424	my ($make_core) = @_;
		3425
		3426	warn Carp::longmess "post_cleanup backtrace"
		3427	if $make_core;
		3428	}
		3429
2214	sub reload() {	3430	sub do_reload_perl() {
2215	# can/must only be called in main	3431	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	3432	if ($Coro::current != $Coro::main) {
2217	warn "can only reload from main coroutine\n";	3433	warn "can only reload from main coroutine";
2218	return;	3434	return;
2219	}	3435	}
2220		3436
2221	warn "reloading...";	3437	warn "reloading...";
2222		3438
2223	my $guard = freeze_mainloop;	3439	warn "entering sync_job";
		3440
		3441	cf::sync_job {
		3442	cf::write_runtime; # external watchdog should not bark
2224	cf::emergency_save;	3443	cf::emergency_save;
		3444	cf::write_runtime; # external watchdog should not bark
2225		3445
2226	eval {	3446	warn "syncing database to disk";
		3447	BDB::db_env_txn_checkpoint $DB_ENV;
		3448
2227	# if anything goes wrong in here, we should simply crash as we already saved	3449	# if anything goes wrong in here, we should simply crash as we already saved
2228		3450
2229	# cancel all watchers	3451	warn "flushing outstanding aio requests";
2230	for (Event::all_watchers) {	3452	for (;;) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;	3453	BDB::flush;
		3454	IO::AIO::flush;
		3455	Coro::cede_notself;
		3456	last unless IO::AIO::nreqs || BDB::nreqs;
		3457	warn "iterate...";
2232	}	3458	}
2233		3459
		3460	++$RELOAD;
		3461
2234	# cancel all extension coros	3462	warn "cancelling all extension coros";
2235	$_->cancel for values %EXT_CORO;	3463	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	3464	%EXT_CORO = ();
2237		3465
2238	# unload all extensions	3466	warn "removing commands";
2239	for (@exts) {	3467	%COMMAND = ();
		3468
		3469	warn "removing ext/exti commands";
		3470	%EXTCMD = ();
		3471	%EXTICMD = ();
		3472
		3473	warn "unloading/nuking all extensions";
		3474	for my $pkg (@EXTS) {
2240	warn "unloading <$_>";	3475	warn "... unloading $pkg";
2241	unload_extension $_;	3476
		3477	if (my $cb = $pkg->can ("unload")) {
		3478	eval {
		3479	$cb->($pkg);
		3480	1
		3481	} or warn "$pkg unloaded, but with errors: $@";
2242	}	3482	}
2243		3483
		3484	warn "... nuking $pkg";
		3485	Symbol::delete_package $pkg;
		3486	}
		3487
2244	# unload all modules loaded from $LIBDIR	3488	warn "unloading all perl modules loaded from $LIBDIR";
2245	while (my ($k, $v) = each %INC) {	3489	while (my ($k, $v) = each %INC) {
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3490	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2247		3491
2248	warn "removing <$k>";	3492	warn "... unloading $k";
2249	delete $INC{$k};	3493	delete $INC{$k};
2250		3494
2251	$k =~ s/\.pm$//;	3495	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;	3496	$k =~ s/\//::/g;
2253		3497
…		…
2256	}	3500	}
2257		3501
2258	Symbol::delete_package $k;	3502	Symbol::delete_package $k;
2259	}	3503	}
2260		3504
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	3505	warn "getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	3506	Symbol::delete_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3507	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		3508
2269	# remove register_script_function callbacks
2270	# TODO
2271
2272	# unload cf.pm "a bit"	3509	warn "unloading cf.pm \"a bit\"";
2273	delete $INC{"cf.pm"};	3510	delete $INC{"cf.pm"};
		3511	delete $INC{"cf/pod.pm"};
2274		3512
2275	# don't, removes xs symbols, too,	3513	# don't, removes xs symbols, too,
2276	# and global variables created in xs	3514	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	3515	#Symbol::delete_package __PACKAGE__;
2278		3516
2279	# reload cf.pm	3517	warn "unload completed, starting to reload now";
		3518
2280	warn "reloading cf.pm";	3519	warn "reloading cf.pm";
2281	require cf;	3520	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3521	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2283		3522
2284	# load config and database again	3523	warn "loading config and database again";
2285	cf::cfg_load;	3524	cf::reload_config;
2286	cf::db_load;
2287		3525
2288	# load extensions
2289	warn "load extensions";	3526	warn "loading extensions";
2290	cf::load_extensions;	3527	cf::load_extensions;
2291		3528
2292	# reattach attachments to objects	3529	warn "reattaching attachments to objects/players";
2293	warn "reattach";	3530	_global_reattach; # objects, sockets
2294	_global_reattach;	3531	warn "reattaching attachments to maps";
2295	reattach $_ for values %MAP;	3532	reattach $_ for values %MAP;
2296	};	3533	warn "reattaching attachments to players";
		3534	reattach $_ for values %PLAYER;
2297		3535
2298	if ($@) {	3536	warn "leaving sync_job";
		3537
		3538	1
		3539	} or do {
2299	warn $@;	3540	warn $@;
2300	warn "error while reloading, exiting.";	3541	warn "error while reloading, exiting.";
2301	exit 1;	3542	exit 1;
2302	}	3543	};
2303		3544
2304	warn "reloaded successfully";	3545	warn "reloaded";
2305	};	3546	};
2306		3547
2307	#############################################################################	3548	our $RELOAD_WATCHER; # used only during reload
2308		3549
2309	unless ($LINK_MAP) {	3550	sub reload_perl() {
2310	$LINK_MAP = cf::map::new;	3551	# doing reload synchronously and two reloads happen back-to-back,
		3552	# coro crashes during coro_state_free->destroy here.
2311		3553
2312	$LINK_MAP->width (41);	3554	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2313	$LINK_MAP->height (41);	3555	undef $RELOAD_WATCHER;
2314	$LINK_MAP->alloc;	3556	do_reload_perl;
2315	$LINK_MAP->path ("{link}");	3557	};
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,
2322	cb => sub {
2323	$_[0]->w->cancel;
2324
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	});
2343
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	3558	}
2349
2350	register "<global>", __PACKAGE__;
2351		3559
2352	register_command "reload" => sub {	3560	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	3561	my ($who, $arg) = @_;
2354		3562
2355	if ($who->flag (FLAG_WIZ)) {	3563	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	3564	$who->message ("reloading server.");
		3565	async {
		3566	$Coro::current->{desc} = "perl_reload";
		3567	reload_perl;
		3568	};
2359	}	3569	}
2360	};	3570	};
2361		3571
2362	unshift @INC, $LIBDIR;	3572	unshift @INC, $LIBDIR;
2363		3573
2364	$TICK_WATCHER = Event->timer (	3574	my $bug_warning = 0;
2365	reentrant => 0,	3575
2366	prio => 0,	3576	our @WAIT_FOR_TICK;
2367	at => $NEXT_TICK || $TICK,	3577	our @WAIT_FOR_TICK_BEGIN;
2368	data => WF_AUTOCANCEL,	3578
2369	cb => sub {	3579	sub wait_for_tick {
		3580	return unless $TICK_WATCHER->is_active;
		3581	return if $Coro::current == $Coro::main;
		3582
		3583	my $signal = new Coro::Signal;
		3584	push @WAIT_FOR_TICK, $signal;
		3585	$signal->wait;
		3586	}
		3587
		3588	sub wait_for_tick_begin {
		3589	return unless $TICK_WATCHER->is_active;
		3590	return if $Coro::current == $Coro::main;
		3591
		3592	my $signal = new Coro::Signal;
		3593	push @WAIT_FOR_TICK_BEGIN, $signal;
		3594	$signal->wait;
		3595	}
		3596
		3597	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3598	if ($Coro::current != $Coro::main) {
		3599	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3600	unless ++$bug_warning > 10;
		3601	return;
		3602	}
		3603
		3604	$NOW = $tick_start = EV::now;
		3605
2370	cf::server_tick; # one server iteration	3606	cf::server_tick; # one server iteration
		3607
2371	$RUNTIME += $TICK;	3608	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;	3609	$NEXT_TICK += $TICK;
2373		3610
2374	# if we are delayed by four ticks or more, skip them all	3611	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3612	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2376		3613	Coro::async_pool {
2377	$TICK_WATCHER->at ($NEXT_TICK);	3614	$Coro::current->{desc} = "runtime saver";
2378	$TICK_WATCHER->start;
2379	},
2380	);
2381
2382	IO::AIO::max_poll_time $TICK * 0.2;
2383
2384	Event->io (
2385	fd => IO::AIO::poll_fileno,
2386	poll => 'r',
2387	prio => 5,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391
2392	Event->timer (
2393	data => WF_AUTOCANCEL,
2394	after => 0,
2395	interval => 10,
2396	cb => sub {
2397	(Coro::unblock_sub {
2398	write_runtime	3615	write_runtime
2399	or warn "ERROR: unable to write runtime file: $!";	3616	or warn "ERROR: unable to write runtime file: $!";
2400	})->();	3617	};
2401	},	3618	}
2402	);	3619
		3620	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3621	$sig->send;
		3622	}
		3623	while (my $sig = shift @WAIT_FOR_TICK) {
		3624	$sig->send;
		3625	}
		3626
		3627	$LOAD = ($NOW - $tick_start) / $TICK;
		3628	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3629
		3630	_post_tick;
		3631	};
		3632	$TICK_WATCHER->priority (EV::MAXPRI);
		3633
		3634	{
		3635	# configure BDB
		3636
		3637	BDB::min_parallel 8;
		3638	BDB::max_poll_reqs $TICK * 0.1;
		3639	$Coro::BDB::WATCHER->priority (1);
		3640
		3641	unless ($DB_ENV) {
		3642	$DB_ENV = BDB::db_env_create;
		3643	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3644	| BDB::LOG_AUTOREMOVE, 1);
		3645	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3646	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3647
		3648	cf::sync_job {
		3649	eval {
		3650	BDB::db_env_open
		3651	$DB_ENV,
		3652	$BDBDIR,
		3653	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3654	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3655	0666;
		3656
		3657	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3658	};
		3659
		3660	cf::cleanup "db_env_open(db): $@" if $@;
		3661	};
		3662	}
		3663
		3664	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3665	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3666	};
		3667	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3668	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3669	};
		3670	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3671	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3672	};
		3673	}
		3674
		3675	{
		3676	# configure IO::AIO
		3677
		3678	IO::AIO::min_parallel 8;
		3679	IO::AIO::max_poll_time $TICK * 0.1;
		3680	$Coro::AIO::WATCHER->priority (1);
		3681	}
		3682
		3683	my $_log_backtrace;
		3684
		3685	sub _log_backtrace {
		3686	my ($msg, @addr) = @_;
		3687
		3688	$msg =~ s/\n//;
		3689
		3690	# limit the # of concurrent backtraces
		3691	if ($_log_backtrace < 2) {
		3692	++$_log_backtrace;
		3693	async {
		3694	$Coro::current->{desc} = "abt $msg";
		3695
		3696	my @bt = fork_call {
		3697	@addr = map { sprintf "%x", $_ } @addr;
		3698	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3699	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3700	or die "addr2line: $!";
		3701
		3702	my @funcs;
		3703	my @res = <$fh>;
		3704	chomp for @res;
		3705	while (@res) {
		3706	my ($func, $line) = splice @res, 0, 2, ();
		3707	push @funcs, "[$func] $line";
		3708	}
		3709
		3710	@funcs
		3711	};
		3712
		3713	LOG llevInfo, "[ABT] $msg\n";
		3714	LOG llevInfo, "[ABT] $_\n" for @bt;
		3715	--$_log_backtrace;
		3716	};
		3717	} else {
		3718	LOG llevInfo, "[ABT] $msg\n";
		3719	LOG llevInfo, "[ABT] [suppressed]\n";
		3720	}
		3721	}
		3722
		3723	# load additional modules
		3724	use cf::pod;
2403		3725
2404	END { cf::emergency_save }	3726	END { cf::emergency_save }
2405		3727
2406	1	3728	1
2407		3729

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