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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 1.407 by root, Sun Jan 13 09:53:53 2008 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 1.86;
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	our %RESOURCE;
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
44	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	80	our $NEXT_TICK;
46	our $NOW;	81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $BDB_DEADLOCK_WATCHER;
		85	our $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
47		88
48	our %CFG;	89	our %CFG;
49		90
50	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	92	our $RUNTIME;
		93	our $NOW;
52		94
53	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";	98
57	our %EXT_CORO; # coroutines bound to extensions	99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
58		105
59	binmode STDOUT;	106	binmode STDOUT;
60	binmode STDERR;	107	binmode STDERR;
61		108
62	# read virtual server time, if available	109	# read virtual server time, if available
63	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
64	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
65	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
66	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
67	}	114	}
68		115
69	mkdir cf::localdir;	116	mkdir $_
70	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
71	mkdir cf::localdir . "/" . cf::tmpdir;
72	mkdir cf::localdir . "/" . cf::uniquedir;
73	mkdir $RANDOM_MAPS;
74		118
75	# a special map that is always available
76	our $LINK_MAP;
77	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
78		122
79	#############################################################################	123	#############################################################################
80		124
81	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
82		126
…		…
89	=item $cf::RUNTIME	133	=item $cf::RUNTIME
90		134
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	136	every server tick.
93		137
94	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		141
96	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
98		146
99	=item $cf::NOW	147	=item $cf::NOW
100		148
101	The time of the last (current) server tick.	149	The time of the last (current) server tick.
102		150
103	=item $cf::TICK	151	=item $cf::TICK
104		152
105	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
106		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
		164
107	=item %cf::CFG	165	=item %cf::CFG
108		166
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
111		181
112	=back	182	=back
113		183
114	=cut	184	=cut
115		185
116	BEGIN {	186	BEGIN {
117	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	188	my $msg = join "", @_;
119	utf8::encode $msg;
120		189
121	$msg .= "\n"	190	$msg .= "\n"
122	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
123		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
124	LOG llevError, $msg;	195	LOG llevError, $msg;
125	};	196	};
126	}	197	}
		198
		199	$Coro::State::DIEHOOK = sub {
		200	warn Carp::longmess $_[0];
		201	Coro::terminate;
		202	};
127		203
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	204	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	205	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	206	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	207	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	208	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		209	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	210	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		211
135	# we bless all objects into (empty) derived classes to force a method lookup	212	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	213	# within the Safe compartment.
137	for my $pkg (qw(	214	for my $pkg (qw(
138	cf::global cf::attachable	215	cf::global cf::attachable
…		…
143	)) {	220	)) {
144	no strict 'refs';	221	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	222	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	223	}
147		224
148	$Event::DIED = sub {	225	$EV::DIED = sub {
149	warn "error in event callback: @_";	226	warn "error in event callback: @_";
150	};	227	};
151		228
152	my %ext_pkg;	229	#############################################################################
153	my @exts;
154	my @hook;
155		230
156	=head2 UTILITY FUNCTIONS	231	=head2 UTILITY FUNCTIONS
157		232
158	=over 4	233	=over 4
159		234
…		…
178	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	253	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
179	$d	254	$d
180	} || "[unable to dump $_[0]: '$@']";	255	} || "[unable to dump $_[0]: '$@']";
181	}	256	}
182		257
183	use JSON::Syck (); # TODO# replace by JSON::PC once working
184
185	=item $ref = cf::from_json $json	258	=item $ref = cf::decode_json $json
186		259
187	Converts a JSON string into the corresponding perl data structure.	260	Converts a JSON string into the corresponding perl data structure.
188		261
189	=cut
190
191	sub from_json($) {
192	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
193	JSON::Syck::Load $_[0]
194	}
195
196	=item $json = cf::to_json $ref	262	=item $json = cf::encode_json $ref
197		263
198	Converts a perl data structure into its JSON representation.	264	Converts a perl data structure into its JSON representation.
199		265
200	=cut	266	=cut
201		267
202	sub to_json($) {	268	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
203	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	269
204	JSON::Syck::Dump $_[0]	270	sub encode_json($) { $json_coder->encode ($_[0]) }
205	}	271	sub decode_json($) { $json_coder->decode ($_[0]) }
206		272
207	=item cf::lock_wait $string	273	=item cf::lock_wait $string
208		274
209	Wait until the given lock is available. See cf::lock_acquire.	275	Wait until the given lock is available. See cf::lock_acquire.
210		276
…		…
213	Wait until the given lock is available and then acquires it and returns	279	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,	280	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	281	for example when the coroutine gets canceled), the lock is automatically
216	returned.	282	returned.
217		283
		284	Locks are *not* recursive, locking from the same coro twice results in a
		285	deadlocked coro.
		286
218	Lock names should begin with a unique identifier (for example, cf::map::find	287	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and cf::map::load uses map_load).	288	uses map_find and cf::map::load uses map_load).
220		289
		290	=item $locked = cf::lock_active $string
		291
		292	Return true if the lock is currently active, i.e. somebody has locked it.
		293
221	=cut	294	=cut
222		295
223	our %LOCK;	296	our %LOCK;
		297	our %LOCKER;#d#
224		298
225	sub lock_wait($) {	299	sub lock_wait($) {
226	my ($key) = @_;	300	my ($key) = @_;
		301
		302	if ($LOCKER{$key} == $Coro::current) {#d#
		303	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		304	return;#d#
		305	}#d#
227		306
228	# wait for lock, if any	307	# wait for lock, if any
229	while ($LOCK{$key}) {	308	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;	309	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;	310	Coro::schedule;
…		…
237		316
238	# wait, to be sure we are not locked	317	# wait, to be sure we are not locked
239	lock_wait $key;	318	lock_wait $key;
240		319
241	$LOCK{$key} = [];	320	$LOCK{$key} = [];
		321	$LOCKER{$key} = $Coro::current;#d#
242		322
243	Coro::guard {	323	Coro::guard {
		324	delete $LOCKER{$key};#d#
244	# wake up all waiters, to be on the safe side	325	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	326	$_->ready for @{ delete $LOCK{$key} };
246	}	327	}
247	}	328	}
248		329
		330	sub lock_active($) {
		331	my ($key) = @_;
		332
		333	! ! $LOCK{$key}
		334	}
		335
249	sub freeze_mainloop {	336	sub freeze_mainloop {
250	return unless $TICK_WATCHER->is_active;	337	return unless $TICK_WATCHER->is_active;
251		338
252	my $guard = Coro::guard { $TICK_WATCHER->start };	339	my $guard = Coro::guard {
		340	$TICK_WATCHER->start;
		341	};
253	$TICK_WATCHER->stop;	342	$TICK_WATCHER->stop;
254	$guard	343	$guard
		344	}
		345
		346	=item cf::periodic $interval, $cb
		347
		348	Like EV::periodic, but randomly selects a starting point so that the actions
		349	get spread over timer.
		350
		351	=cut
		352
		353	sub periodic($$) {
		354	my ($interval, $cb) = @_;
		355
		356	my $start = rand List::Util::min 180, $interval;
		357
		358	EV::periodic $start, $interval, 0, $cb
		359	}
		360
		361	=item cf::get_slot $time[, $priority[, $name]]
		362
		363	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		364	This call blocks and returns only when you have at least C<$time> seconds
		365	of cpu time till the next tick. The slot is only valid till the next cede.
		366
		367	The optional C<$name> can be used to identify the job to run. It might be
		368	used for statistical purposes and should identify the same time-class.
		369
		370	Useful for short background jobs.
		371
		372	=cut
		373
		374	our @SLOT_QUEUE;
		375	our $SLOT_QUEUE;
		376
		377	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		378	$SLOT_QUEUE = Coro::async {
		379	$Coro::current->desc ("timeslot manager");
		380
		381	my $signal = new Coro::Signal;
		382
		383	while () {
		384	next_job:
		385	my $avail = cf::till_tick;
		386	if ($avail > 0.01) {
		387	for (0 .. $#SLOT_QUEUE) {
		388	if ($SLOT_QUEUE[$_][0] < $avail) {
		389	my $job = splice @SLOT_QUEUE, $_, 1, ();
		390	$job->[2]->send;
		391	Coro::cede;
		392	goto next_job;
		393	}
		394	}
		395	}
		396
		397	if (@SLOT_QUEUE) {
		398	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		399	push @cf::WAIT_FOR_TICK, $signal;
		400	$signal->wait;
		401	} else {
		402	Coro::schedule;
		403	}
		404	}
		405	};
		406
		407	sub get_slot($;$$) {
		408	my ($time, $pri, $name) = @_;
		409
		410	$time = $TICK * .6 if $time > $TICK * .6;
		411	my $sig = new Coro::Signal;
		412
		413	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		414	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		415	$SLOT_QUEUE->ready;
		416	$sig->wait;
255	}	417	}
256		418
257	=item cf::async { BLOCK }	419	=item cf::async { BLOCK }
258		420
259	Currently the same as Coro::async_pool, meaning you cannot use	421	Currently the same as Coro::async_pool, meaning you cannot use
…		…
264		426
265	BEGIN { *async = \&Coro::async_pool }	427	BEGIN { *async = \&Coro::async_pool }
266		428
267	=item cf::sync_job { BLOCK }	429	=item cf::sync_job { BLOCK }
268		430
269	The design of crossfire+ requires that the main coro ($Coro::main) is	431	The design of Deliantra requires that the main coroutine ($Coro::main)
270	always able to handle events or runnable, as crossfire+ is only partly	432	is always able to handle events or runnable, as Deliantra is only
271	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	433	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		434	acceptable.
272		435
273	If it must be done, put the blocking parts into C<sync_job>. This will run	436	If it must be done, put the blocking parts into C<sync_job>. This will run
274	the given BLOCK in another coroutine while waiting for the result. The	437	the given BLOCK in another coroutine while waiting for the result. The
275	server will be frozen during this time, so the block should either finish	438	server will be frozen during this time, so the block should either finish
276	fast or be very important.	439	fast or be very important.
…		…
279		442
280	sub sync_job(&) {	443	sub sync_job(&) {
281	my ($job) = @_;	444	my ($job) = @_;
282		445
283	if ($Coro::current == $Coro::main) {	446	if ($Coro::current == $Coro::main) {
		447	my $time = EV::time;
		448
284	# this is the main coro, too bad, we have to block	449	# this is the main coro, too bad, we have to block
285	# till the operation succeeds, freezing the server :/	450	# till the operation succeeds, freezing the server :/
286		451
		452	LOG llevError, Carp::longmess "sync job";#d#
		453
287	# TODO: use suspend/resume instead	454	# TODO: use suspend/resume instead
288	# (but this is cancel-safe)	455	# (but this is cancel-safe)
289	my $freeze_guard = freeze_mainloop;	456	my $freeze_guard = freeze_mainloop;
290		457
291	my $busy = 1;	458	my $busy = 1;
292	my @res;	459	my @res;
293		460
294	(async {	461	(async {
		462	$Coro::current->desc ("sync job coro");
295	@res = eval { $job->() };	463	@res = eval { $job->() };
296	warn $@ if $@;	464	warn $@ if $@;
297	undef $busy;	465	undef $busy;
298	})->prio (Coro::PRIO_MAX);	466	})->prio (Coro::PRIO_MAX);
299		467
300	while ($busy) {	468	while ($busy) {
301	Coro::cede or Event::one_event;	469	if (Coro::nready) {
		470	Coro::cede_notself;
		471	} else {
		472	EV::loop EV::LOOP_ONESHOT;
302	}	473	}
		474	}
		475
		476	$time = EV::time - $time;
		477
		478	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		479	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		480
		481	$tick_start += $time; # do not account sync jobs to server load
303		482
304	wantarray ? @res : $res[0]	483	wantarray ? @res : $res[0]
305	} else {	484	} else {
306	# we are in another coroutine, how wonderful, everything just works	485	# we are in another coroutine, how wonderful, everything just works
307		486
…		…
309	}	488	}
310	}	489	}
311		490
312	=item $coro = cf::async_ext { BLOCK }	491	=item $coro = cf::async_ext { BLOCK }
313		492
314	Like async, but this coro is automcatially being canceled when the	493	Like async, but this coro is automatically being canceled when the
315	extension calling this is being unloaded.	494	extension calling this is being unloaded.
316		495
317	=cut	496	=cut
318		497
319	sub async_ext(&) {	498	sub async_ext(&) {
…		…
327	$EXT_CORO{$coro+0} = $coro;	506	$EXT_CORO{$coro+0} = $coro;
328		507
329	$coro	508	$coro
330	}	509	}
331		510
332	sub write_runtime {	511	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		512
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	513	Executes the given code block with the given arguments in a seperate
336	or return;	514	process, returning the results. Everything must be serialisable with
		515	Coro::Storable. May, of course, block. Note that the executed sub may
		516	never block itself or use any form of event handling.
337		517
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	518	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		519
342	aio_fsync $fh	520	sub fork_call(&@) {
343	and return;	521	my ($cb, @args) = @_;
344		522
345	close $fh	523	# we seemingly have to make a local copy of the whole thing,
346	or return;	524	# otherwise perl prematurely frees the stuff :/
		525	# TODO: investigate and fix (likely this will be rather laborious)
347		526
348	aio_rename "$runtime~", $runtime	527	my @res = Coro::Util::fork_eval {
349	and return;	528	reset_signals;
		529	&$cb
		530	}, @args;
350		531
		532	wantarray ? @res : $res[-1]
		533	}
		534
		535	=item $value = cf::db_get $family => $key
		536
		537	Returns a single value from the environment database.
		538
		539	=item cf::db_put $family => $key => $value
		540
		541	Stores the given C<$value> in the family. It can currently store binary
		542	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		543
		544	=item $db = cf::db_table "name"
		545
		546	Create and/or open a new database table. The string must not be "db" and must be unique
		547	within each server.
		548
		549	=cut
		550
		551	sub db_table($) {
		552	my ($name) = @_;
		553	my $db = BDB::db_create $DB_ENV;
		554
		555	eval {
		556	$db->set_flags (BDB::CHKSUM);
		557
		558	utf8::encode $name;
		559	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		560	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		561	cf::cleanup "db_open(db): $!" if $!;
		562	};
		563	cf::cleanup "db_open(db): $@" if $@;
		564
		565	$db
		566	}
		567
		568	our $DB;
		569
		570	sub db_init {
		571	cf::sync_job {
		572	$DB ||= db_table "db";
		573	};
		574	}
		575
		576	sub db_get($$) {
		577	my $key = "$_[0]/$_[1]";
		578
		579	cf::sync_job {
		580	BDB::db_get $DB, undef, $key, my $data;
		581
		582	$! ? ()
		583	: $data
351	1	584	}
		585	}
		586
		587	sub db_put($$$) {
		588	BDB::dbreq_pri 4;
		589	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		590	}
		591
		592	=item cf::cache $id => [$paths...], $processversion => $process
		593
		594	Generic caching function that returns the value of the resource $id,
		595	caching and regenerating as required.
		596
		597	This function can block.
		598
		599	=cut
		600
		601	sub cache {
		602	my ($id, $src, $processversion, $process) = @_;
		603
		604	my $meta =
		605	join "\x00",
		606	$processversion,
		607	map {
		608	aio_stat $_
		609	and Carp::croak "$_: $!";
		610
		611	($_, (stat _)[7,9])
		612	} @$src;
		613
		614	my $dbmeta = db_get cache => "$id/meta";
		615	if ($dbmeta ne $meta) {
		616	# changed, we may need to process
		617
		618	my @data;
		619	my $md5;
		620
		621	for (0 .. $#$src) {
		622	0 <= aio_load $src->[$_], $data[$_]
		623	or Carp::croak "$src->[$_]: $!";
		624	}
		625
		626	# if processing is expensive, check
		627	# checksum first
		628	if (1) {
		629	$md5 =
		630	join "\x00",
		631	$processversion,
		632	map {
		633	cf::cede_to_tick;
		634	($src->[$_], Digest::MD5::md5_hex $data[$_])
		635	} 0.. $#$src;
		636
		637
		638	my $dbmd5 = db_get cache => "$id/md5";
		639	if ($dbmd5 eq $md5) {
		640	db_put cache => "$id/meta", $meta;
		641
		642	return db_get cache => "$id/data";
		643	}
		644	}
		645
		646	my $t1 = Time::HiRes::time;
		647	my $data = $process->(\@data);
		648	my $t2 = Time::HiRes::time;
		649
		650	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		651
		652	db_put cache => "$id/data", $data;
		653	db_put cache => "$id/md5" , $md5;
		654	db_put cache => "$id/meta", $meta;
		655
		656	return $data;
		657	}
		658
		659	db_get cache => "$id/data"
		660	}
		661
		662	=item cf::datalog type => key => value, ...
		663
		664	Log a datalog packet of the given type with the given key-value pairs.
		665
		666	=cut
		667
		668	sub datalog($@) {
		669	my ($type, %kv) = @_;
		670	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	671	}
353		672
354	=back	673	=back
355		674
356	=cut	675	=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		676
480	#############################################################################	677	#############################################################################
481		678
482	=head2 ATTACHABLE OBJECTS	679	=head2 ATTACHABLE OBJECTS
483		680
…		…
485	attach callbacks/event handlers (a collection of which is called an "attachment")	682	attach callbacks/event handlers (a collection of which is called an "attachment")
486	to it. All such attachable objects support the following methods.	683	to it. All such attachable objects support the following methods.
487		684
488	In the following description, CLASS can be any of C<global>, C<object>	685	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	686	C<player>, C<client> or C<map> (i.e. the attachable objects in
490	crossfire+).	687	Deliantra).
491		688
492	=over 4	689	=over 4
493		690
494	=item $attachable->attach ($attachment, key => $value...)	691	=item $attachable->attach ($attachment, key => $value...)
495		692
…		…
609	our @CB_TYPE = (); # registry for type (cf-object class) based events	806	our @CB_TYPE = (); # registry for type (cf-object class) based events
610	our @CB_MAP = ();	807	our @CB_MAP = ();
611		808
612	my %attachment;	809	my %attachment;
613		810
		811	sub cf::attachable::thawer_merge {
		812	# simply override everything except _meta
		813	local $_[0]{_meta};
		814	%{$_[0]} = %{$_[1]};
		815	}
		816
614	sub _attach_cb($$$$) {	817	sub _attach_cb($$$$) {
615	my ($registry, $event, $prio, $cb) = @_;	818	my ($registry, $event, $prio, $cb) = @_;
616		819
617	use sort 'stable';	820	use sort 'stable';
618		821
…		…
652	$registry = $CB_TYPE[$object_type] ||= [];	855	$registry = $CB_TYPE[$object_type] ||= [];
653		856
654	} elsif ($type eq "subtype") {	857	} elsif ($type eq "subtype") {
655	defined $object_type or Carp::croak "subtype specified without type";	858	defined $object_type or Carp::croak "subtype specified without type";
656	my $object_subtype = shift @arg;	859	my $object_subtype = shift @arg;
657	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	860	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
658		861
659	} elsif ($type eq "package") {	862	} elsif ($type eq "package") {
660	my $pkg = shift @arg;	863	my $pkg = shift @arg;
661		864
662	while (my ($name, $id) = each %cb_id) {	865	while (my ($name, $id) = each %cb_id) {
…		…
691	_attach $registry, $klass, @attach;	894	_attach $registry, $klass, @attach;
692	}	895	}
693		896
694	$obj->{$name} = \%arg;	897	$obj->{$name} = \%arg;
695	} else {	898	} else {
696	warn "object uses attachment '$name' that is not available, postponing.\n";	899	warn "object uses attachment '$name' which is not available, postponing.\n";
697	}	900	}
698		901
699	$obj->{_attachment}{$name} = undef;	902	$obj->{_attachment}{$name} = undef;
700	}	903	}
701		904
…		…
703	if (ref $_[0]) {	906	if (ref $_[0]) {
704	_object_attach @_;	907	_object_attach @_;
705	} else {	908	} else {
706	_attach shift->_attach_registry, @_;	909	_attach shift->_attach_registry, @_;
707	}	910	}
		911	_recalc_want;
708	};	912	};
709		913
710	# all those should be optimised	914	# all those should be optimised
711	sub cf::attachable::detach {	915	sub cf::attachable::detach {
712	my ($obj, $name) = @_;	916	my ($obj, $name) = @_;
…		…
715	delete $obj->{_attachment}{$name};	919	delete $obj->{_attachment}{$name};
716	reattach ($obj);	920	reattach ($obj);
717	} else {	921	} else {
718	Carp::croak "cannot, currently, detach class attachments";	922	Carp::croak "cannot, currently, detach class attachments";
719	}	923	}
		924	_recalc_want;
720	};	925	};
721		926
722	sub cf::attachable::attached {	927	sub cf::attachable::attached {
723	my ($obj, $name) = @_;	928	my ($obj, $name) = @_;
724		929
…		…
739	";	944	";
740	die if $@;	945	die if $@;
741	}	946	}
742		947
743	our $override;	948	our $override;
744	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	949	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
745		950
746	sub override {	951	sub override {
747	$override = 1;	952	$override = 1;
748	@invoke_results = ();	953	@INVOKE_RESULTS = (@_);
749	}	954	}
750		955
751	sub do_invoke {	956	sub do_invoke {
752	my $event = shift;	957	my $event = shift;
753	my $callbacks = shift;	958	my $callbacks = shift;
754		959
755	@invoke_results = ();	960	@INVOKE_RESULTS = ();
756		961
757	local $override;	962	local $override;
758		963
759	for (@$callbacks) {	964	for (@$callbacks) {
760	eval { &{$_->[1]} };	965	eval { &{$_->[1]} };
…		…
769	}	974	}
770		975
771	0	976	0
772	}	977	}
773		978
774	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	979	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
775		980
776	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	981	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
777		982
778	Generate an object-specific event with the given arguments.	983	Generate an object-specific event with the given arguments.
779		984
780	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	985	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	986	removed in future versions), and there is no public API to access override
782	results (if you must, access C<@cf::invoke_results> directly).	987	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
783		988
784	=back	989	=back
785		990
786	=cut	991	=cut
787		992
788	#############################################################################	993	#############################################################################
789	# object support	994	# object support
		995
		996	sub _object_equal($$);
		997	sub _object_equal($$) {
		998	my ($a, $b) = @_;
		999
		1000	return 0 unless (ref $a) eq (ref $b);
		1001
		1002	if ("HASH" eq ref $a) {
		1003	my @ka = keys %$a;
		1004	my @kb = keys %$b;
		1005
		1006	return 0 if @ka != @kb;
		1007
		1008	for (0 .. $#ka) {
		1009	return 0 unless $ka[$_] eq $kb[$_];
		1010	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1011	}
		1012
		1013	} elsif ("ARRAY" eq ref $a) {
		1014
		1015	return 0 if @$a != @$b;
		1016
		1017	for (0 .. $#$a) {
		1018	return 0 unless _object_equal $a->[$_], $b->[$_];
		1019	}
		1020
		1021	} elsif ($a ne $b) {
		1022	return 0;
		1023	}
		1024
		1025	1
		1026	}
		1027
		1028	our $SLOW_MERGES;#d#
		1029	sub _can_merge {
		1030	my ($ob1, $ob2) = @_;
		1031
		1032	++$SLOW_MERGES;#d#
		1033
		1034	# we do the slow way here
		1035	return _object_equal $ob1, $ob2
		1036	}
790		1037
791	sub reattach {	1038	sub reattach {
792	# basically do the same as instantiate, without calling instantiate	1039	# basically do the same as instantiate, without calling instantiate
793	my ($obj) = @_;	1040	my ($obj) = @_;
		1041
		1042	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
794		1043
795	my $registry = $obj->registry;	1044	my $registry = $obj->registry;
796		1045
797	@$registry = ();	1046	@$registry = ();
798		1047
…		…
813	cf::attachable->attach (	1062	cf::attachable->attach (
814	prio => -1000000,	1063	prio => -1000000,
815	on_instantiate => sub {	1064	on_instantiate => sub {
816	my ($obj, $data) = @_;	1065	my ($obj, $data) = @_;
817		1066
818	$data = from_json $data;	1067	$data = decode_json $data;
819		1068
820	for (@$data) {	1069	for (@$data) {
821	my ($name, $args) = @$_;	1070	my ($name, $args) = @$_;
822		1071
823	$obj->attach ($name, %{$args || {} });	1072	$obj->attach ($name, %{$args || {} });
…		…
839	sub object_freezer_save {	1088	sub object_freezer_save {
840	my ($filename, $rdata, $objs) = @_;	1089	my ($filename, $rdata, $objs) = @_;
841		1090
842	sync_job {	1091	sync_job {
843	if (length $$rdata) {	1092	if (length $$rdata) {
		1093	utf8::decode (my $decname = $filename);
844	warn sprintf "saving %s (%d,%d)\n",	1094	warn sprintf "saving %s (%d,%d)\n",
845	$filename, length $$rdata, scalar @$objs;	1095	$decname, length $$rdata, scalar @$objs;
846		1096
847	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1097	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
848	chmod SAVE_MODE, $fh;	1098	chmod SAVE_MODE, $fh;
849	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1099	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
850	aio_fsync $fh;	1100	aio_fsync $fh if $cf::USE_FSYNC;
851	close $fh;	1101	close $fh;
852		1102
853	if (@$objs) {	1103	if (@$objs) {
854	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1104	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
855	chmod SAVE_MODE, $fh;	1105	chmod SAVE_MODE, $fh;
856	my $data = Storable::nfreeze { version => 1, objs => $objs };	1106	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
857	aio_write $fh, 0, (length $data), $data, 0;	1107	aio_write $fh, 0, (length $data), $data, 0;
858	aio_fsync $fh;	1108	aio_fsync $fh if $cf::USE_FSYNC;
859	close $fh;	1109	close $fh;
860	aio_rename "$filename.pst~", "$filename.pst";	1110	aio_rename "$filename.pst~", "$filename.pst";
861	}	1111	}
862	} else {	1112	} else {
863	aio_unlink "$filename.pst";	1113	aio_unlink "$filename.pst";
…		…
869	}	1119	}
870	} else {	1120	} else {
871	aio_unlink $filename;	1121	aio_unlink $filename;
872	aio_unlink "$filename.pst";	1122	aio_unlink "$filename.pst";
873	}	1123	}
874	}	1124	};
875	}	1125	}
876		1126
877	sub object_freezer_as_string {	1127	sub object_freezer_as_string {
878	my ($rdata, $objs) = @_;	1128	my ($rdata, $objs) = @_;
879		1129
…		…
891	or return;	1141	or return;
892		1142
893	unless (aio_stat "$filename.pst") {	1143	unless (aio_stat "$filename.pst") {
894	(aio_load "$filename.pst", $av) >= 0	1144	(aio_load "$filename.pst", $av) >= 0
895	or return;	1145	or return;
		1146
896	$av = eval { (Storable::thaw $av)->{objs} };	1147	my $st = eval { Coro::Storable::thaw $av };
		1148	$av = $st->{objs};
897	}	1149	}
898		1150
		1151	utf8::decode (my $decname = $filename);
899	warn sprintf "loading %s (%d)\n",	1152	warn sprintf "loading %s (%d,%d)\n",
900	$filename, length $data, scalar @{$av || []};#d#	1153	$decname, length $data, scalar @{$av || []};
		1154
901	return ($data, $av);	1155	($data, $av)
902	}	1156	}
		1157
		1158	=head2 COMMAND CALLBACKS
		1159
		1160	=over 4
		1161
		1162	=cut
903		1163
904	#############################################################################	1164	#############################################################################
905	# command handling &c	1165	# command handling &c
906		1166
907	=item cf::register_command $name => \&callback($ob,$args);	1167	=item cf::register_command $name => \&callback($ob,$args);
…		…
920	push @{ $COMMAND{$name} }, [$caller, $cb];	1180	push @{ $COMMAND{$name} }, [$caller, $cb];
921	}	1181	}
922		1182
923	=item cf::register_extcmd $name => \&callback($pl,$packet);	1183	=item cf::register_extcmd $name => \&callback($pl,$packet);
924		1184
925	Register a callbackf ro execution when the client sends an extcmd packet.	1185	Register a callback for execution when the client sends an (synchronous)
		1186	extcmd packet. Ext commands will be processed in the order they are
		1187	received by the server, like other user commands. The first argument is
		1188	the logged-in player. Ext commands can only be processed after a player
		1189	has logged in successfully.
926		1190
927	If the callback returns something, it is sent back as if reply was being	1191	If the callback returns something, it is sent back as if reply was being
928	called.	1192	called.
929		1193
		1194	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1195
		1196	Register a callback for execution when the client sends an (asynchronous)
		1197	exticmd packet. Exti commands are processed by the server as soon as they
		1198	are received, i.e. out of order w.r.t. other commands. The first argument
		1199	is a client socket. Exti commands can be received anytime, even before
		1200	log-in.
		1201
		1202	If the callback returns something, it is sent back as if reply was being
		1203	called.
		1204
930	=cut	1205	=cut
931		1206
932	sub register_extcmd {	1207	sub register_extcmd {
933	my ($name, $cb) = @_;	1208	my ($name, $cb) = @_;
934		1209
935	my $caller = caller;
936	#warn "registering extcmd '$name' to '$caller'";
937
938	$EXTCMD{$name} = [$cb, $caller];	1210	$EXTCMD{$name} = $cb;
		1211	}
		1212
		1213	sub register_exticmd {
		1214	my ($name, $cb) = @_;
		1215
		1216	$EXTICMD{$name} = $cb;
939	}	1217	}
940		1218
941	cf::player->attach (	1219	cf::player->attach (
942	on_command => sub {	1220	on_command => sub {
943	my ($pl, $name, $params) = @_;	1221	my ($pl, $name, $params) = @_;
…		…
952	cf::override;	1230	cf::override;
953	},	1231	},
954	on_extcmd => sub {	1232	on_extcmd => sub {
955	my ($pl, $buf) = @_;	1233	my ($pl, $buf) = @_;
956		1234
957	my $msg = eval { from_json $buf };	1235	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
958		1236
959	if (ref $msg) {	1237	if (ref $msg) {
		1238	my ($type, $reply, @payload) =
		1239	"ARRAY" eq ref $msg
		1240	? @$msg
		1241	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1242
		1243	my @reply;
		1244
960	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1245	if (my $cb = $EXTCMD{$type}) {
961	if (my %reply = $cb->[0]->($pl, $msg)) {	1246	@reply = $cb->($pl, @payload);
962	$pl->ext_reply ($msg->{msgid}, %reply);
963	}
964	}	1247	}
		1248
		1249	$pl->ext_reply ($reply, @reply)
		1250	if $reply;
		1251
965	} else {	1252	} else {
966	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1253	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
967	}	1254	}
968		1255
969	cf::override;	1256	cf::override;
970	},	1257	},
971	);	1258	);
972		1259
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 {	1260	sub load_extensions {
		1261	cf::sync_job {
		1262	my %todo;
		1263
1050	for my $ext (<$LIBDIR/*.ext>) {	1264	for my $path (<$LIBDIR/*.ext>) {
1051	next unless -r $ext;	1265	next unless -r $path;
1052	eval {	1266
1053	load_extension $ext;	1267	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1268	my $base = $1;
		1269	my $pkg = $1;
		1270	$pkg =~ s/[^[:word:]]/_/g;
		1271	$pkg = "ext::$pkg";
		1272
		1273	open my $fh, "<:utf8", $path
		1274	or die "$path: $!";
		1275
		1276	my $source = do { local $/; <$fh> };
		1277
		1278	my %ext = (
		1279	path => $path,
		1280	base => $base,
		1281	pkg => $pkg,
		1282	);
		1283
		1284	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1285	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1286
		1287	$ext{source} =
		1288	"package $pkg; use strict; use utf8;\n"
		1289	. "#line 1 \"$path\"\n{\n"
		1290	. $source
		1291	. "\n};\n1";
		1292
		1293	$todo{$base} = \%ext;
		1294	}
		1295
		1296	my %done;
		1297	while (%todo) {
		1298	my $progress;
		1299
		1300	while (my ($k, $v) = each %todo) {
		1301	for (split /,\s*/, $v->{meta}{depends}) {
		1302	goto skip
		1303	unless exists $done{$_};
		1304	}
		1305
		1306	warn "... loading '$k' into '$v->{pkg}'\n";
		1307
		1308	unless (eval $v->{source}) {
		1309	my $msg = $@ ? "$v->{path}: $@\n"
		1310	: "$v->{base}: extension inactive.\n";
		1311
		1312	if (exists $v->{meta}{mandatory}) {
		1313	warn $msg;
		1314	warn "mandatory extension failed to load, exiting.\n";
		1315	exit 1;
		1316	}
		1317
		1318	warn $msg;
		1319	}
		1320
		1321	$done{$k} = delete $todo{$k};
		1322	push @EXTS, $v->{pkg};
		1323	$progress = 1;
1054	1	1324	}
1055	} or warn "$ext not loaded: $@";	1325
		1326	skip:
		1327	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1328	unless $progress;
		1329	}
1056	}	1330	};
1057	}	1331	}
1058		1332
1059	#############################################################################	1333	#############################################################################
1060	# load/save/clean perl data associated with a map
1061		1334
1062	*cf::mapsupport::on_clean = sub {	1335	=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		1336
1097	=head2 CORE EXTENSIONS	1337	=head2 CORE EXTENSIONS
1098		1338
1099	Functions and methods that extend core crossfire objects.	1339	Functions and methods that extend core crossfire objects.
1100		1340
…		…
1106		1346
1107	=head3 cf::player	1347	=head3 cf::player
1108		1348
1109	=over 4	1349	=over 4
1110		1350
		1351	=item cf::player::num_playing
		1352
		1353	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1354
		1355	=cut
		1356
		1357	sub num_playing {
		1358	scalar grep
		1359	$_->ob->map
		1360	&& !$_->hidden
		1361	&& !$_->ob->flag (cf::FLAG_WIZ),
		1362	cf::player::list
		1363	}
		1364
1111	=item cf::player::find $login	1365	=item cf::player::find $login
1112		1366
1113	Returns the given player object, loading it if necessary (might block).	1367	Returns the given player object, loading it if necessary (might block).
1114		1368
1115	=cut	1369	=cut
1116		1370
1117	sub playerdir($) {	1371	sub playerdir($) {
1118	cf::localdir	1372	"$PLAYERDIR/"
1119	. "/"
1120	. cf::playerdir
1121	. "/"
1122	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1373	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1123	}	1374	}
1124		1375
1125	sub path($) {	1376	sub path($) {
1126	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1377	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1127		1378
1128	(playerdir $login) . "/$login.pl"	1379	(playerdir $login) . "/playerdata"
1129	}	1380	}
1130		1381
1131	sub find_active($) {	1382	sub find_active($) {
1132	$cf::PLAYER{$_[0]}	1383	$cf::PLAYER{$_[0]}
1133	and $cf::PLAYER{$_[0]}->active	1384	and $cf::PLAYER{$_[0]}->active
…		…
1136		1387
1137	sub exists($) {	1388	sub exists($) {
1138	my ($login) = @_;	1389	my ($login) = @_;
1139		1390
1140	$cf::PLAYER{$login}	1391	$cf::PLAYER{$login}
1141	or cf::sync_job { !aio_stat $login }	1392	or cf::sync_job { !aio_stat path $login }
1142	}	1393	}
1143		1394
1144	sub find($) {	1395	sub find($) {
1145	return $cf::PLAYER{$_[0]} || do {	1396	return $cf::PLAYER{$_[0]} || do {
1146	my $login = $_[0];	1397	my $login = $_[0];
1147		1398
1148	my $guard = cf::lock_acquire "user_find:$login";	1399	my $guard = cf::lock_acquire "user_find:$login";
1149		1400
1150	$cf::PLAYER{$_[0]} || do {	1401	$cf::PLAYER{$_[0]} || do {
1151	my $pl = load_pl path $login	1402	# rename old playerfiles to new ones
		1403	#TODO: remove when no longer required
		1404	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1405	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1406	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1407	aio_unlink +(playerdir $login) . "/$login.pl";
		1408
		1409	my $f = new_from_file cf::object::thawer path $login
1152	or return;	1410	or return;
		1411
		1412	my $pl = cf::player::load_pl $f
		1413	or return;
		1414	local $cf::PLAYER_LOADING{$login} = $pl;
		1415	$f->resolve_delayed_derefs;
1153	$cf::PLAYER{$login} = $pl	1416	$cf::PLAYER{$login} = $pl
1154	}	1417	}
1155	}	1418	}
1156	}	1419	}
1157		1420
…		…
1167		1430
1168	aio_mkdir playerdir $pl, 0770;	1431	aio_mkdir playerdir $pl, 0770;
1169	$pl->{last_save} = $cf::RUNTIME;	1432	$pl->{last_save} = $cf::RUNTIME;
1170		1433
1171	$pl->save_pl ($path);	1434	$pl->save_pl ($path);
1172	Coro::cede;	1435	cf::cede_to_tick;
1173	}	1436	}
1174		1437
1175	sub new($) {	1438	sub new($) {
1176	my ($login) = @_;	1439	my ($login) = @_;
1177		1440
…		…
1183	$cf::PLAYER{$login} = $self;	1446	$cf::PLAYER{$login} = $self;
1184		1447
1185	$self	1448	$self
1186	}	1449	}
1187		1450
		1451	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1452
		1453	=cut
		1454
		1455	sub send_msg {
		1456	my $ns = shift->ns
		1457	or return;
		1458	$ns->send_msg (@_);
		1459	}
		1460
1188	=item $pl->quit_character	1461	=item $pl->quit_character
1189		1462
1190	Nukes the player without looking back. If logged in, the connection will	1463	Nukes the player without looking back. If logged in, the connection will
1191	be destroyed. May block for a long time.	1464	be destroyed. May block for a long time.
1192		1465
1193	=cut	1466	=cut
1194		1467
1195	sub quit_character {	1468	sub quit_character {
1196	my ($pl) = @_;	1469	my ($pl) = @_;
		1470
		1471	my $name = $pl->ob->name;
1197		1472
1198	$pl->{deny_save} = 1;	1473	$pl->{deny_save} = 1;
1199	$pl->password ("*"); # this should lock out the player until we nuked the dir	1474	$pl->password ("*"); # this should lock out the player until we nuked the dir
1200		1475
1201	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1476	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1206	my $path = playerdir $pl;	1481	my $path = playerdir $pl;
1207	my $temp = "$path~$cf::RUNTIME~deleting~";	1482	my $temp = "$path~$cf::RUNTIME~deleting~";
1208	aio_rename $path, $temp;	1483	aio_rename $path, $temp;
1209	delete $cf::PLAYER{$pl->ob->name};	1484	delete $cf::PLAYER{$pl->ob->name};
1210	$pl->destroy;	1485	$pl->destroy;
		1486
		1487	my $prefix = qr<^~\Q$name\E/>;
		1488
		1489	# nuke player maps
		1490	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1491
1211	IO::AIO::aio_rmtree $temp;	1492	IO::AIO::aio_rmtree $temp;
		1493	}
		1494
		1495	=item $pl->kick
		1496
		1497	Kicks a player out of the game. This destroys the connection.
		1498
		1499	=cut
		1500
		1501	sub kick {
		1502	my ($pl, $kicker) = @_;
		1503
		1504	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1505	$pl->killer ("kicked");
		1506	$pl->ns->destroy;
1212	}	1507	}
1213		1508
1214	=item cf::player::list_logins	1509	=item cf::player::list_logins
1215		1510
1216	Returns am arrayref of all valid playernames in the system, can take a	1511	Returns am arrayref of all valid playernames in the system, can take a
1217	while and may block, so not sync_job-capable, ever.	1512	while and may block, so not sync_job-capable, ever.
1218		1513
1219	=cut	1514	=cut
1220		1515
1221	sub list_logins {	1516	sub list_logins {
1222	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1517	my $dirs = aio_readdir $PLAYERDIR
1223	or return [];	1518	or return [];
1224		1519
1225	my @logins;	1520	my @logins;
1226		1521
1227	for my $login (@$dirs) {	1522	for my $login (@$dirs) {
		1523	my $path = path $login;
		1524
		1525	# a .pst is a dead give-away for a valid player
		1526	unless (-e "$path.pst") {
1228	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1527	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1229	aio_read $fh, 0, 512, my $buf, 0 or next;	1528	aio_read $fh, 0, 512, my $buf, 0 or next;
1230	$buf !~ /^password -------------$/ or next; # official not-valid tag	1529	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1530	}
1231		1531
1232	utf8::decode $login;	1532	utf8::decode $login;
1233	push @logins, $login;	1533	push @logins, $login;
1234	}	1534	}
1235		1535
1236	\@logins	1536	\@logins
1237	}	1537	}
1238		1538
1239	=item $player->maps	1539	=item $player->maps
1240		1540
1241	Returns an arrayref of cf::path's of all maps that are private for this	1541	Returns an arrayref of map paths that are private for this
1242	player. May block.	1542	player. May block.
1243		1543
1244	=cut	1544	=cut
1245		1545
1246	sub maps($) {	1546	sub maps($) {
1247	my ($pl) = @_;	1547	my ($pl) = @_;
		1548
		1549	$pl = ref $pl ? $pl->ob->name : $pl;
1248		1550
1249	my $files = aio_readdir playerdir $pl	1551	my $files = aio_readdir playerdir $pl
1250	or return;	1552	or return;
1251		1553
1252	my @paths;	1554	my @paths;
1253		1555
1254	for (@$files) {	1556	for (@$files) {
1255	utf8::decode $_;	1557	utf8::decode $_;
1256	next if /\.(?:pl|pst)$/;	1558	next if /\.(?:pl|pst)$/;
1257	next unless /^$PATH_SEP/;	1559	next unless /^$PATH_SEP/o;
1258		1560
1259	s/$PATH_SEP/\//g;	1561	push @paths, cf::map::normalise "~$pl/$_";
1260	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1261	}	1562	}
1262		1563
1263	\@paths	1564	\@paths
1264	}	1565	}
1265		1566
		1567	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1568
		1569	Expand crossfire pod fragments into protocol xml.
		1570
		1571	=cut
		1572
		1573	use re 'eval';
		1574
		1575	my $group;
		1576	my $interior; $interior = qr{
		1577	# match a pod interior sequence sans C<< >>
		1578	(?:
		1579	\ (.*?)\ (?{ $group = $^N })
		1580	| < (??{$interior}) >
		1581	)
		1582	}x;
		1583
		1584	sub expand_cfpod {
		1585	my ($self, $pod) = @_;
		1586
		1587	my $xml;
		1588
		1589	while () {
		1590	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1591	$group = $1;
		1592
		1593	$group =~ s/&/&amp;/g;
		1594	$group =~ s/</&lt;/g;
		1595
		1596	$xml .= $group;
		1597	} elsif ($pod =~ m%\G
		1598	([BCGHITU])
		1599	<
		1600	(?:
		1601	([^<>]*) (?{ $group = $^N })
		1602	| < $interior >
		1603	)
		1604	>
		1605	%gcsx
		1606	) {
		1607	my ($code, $data) = ($1, $group);
		1608
		1609	if ($code eq "B") {
		1610	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1611	} elsif ($code eq "I") {
		1612	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1613	} elsif ($code eq "U") {
		1614	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1615	} elsif ($code eq "C") {
		1616	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1617	} elsif ($code eq "T") {
		1618	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1619	} elsif ($code eq "G") {
		1620	my ($male, $female) = split /\|/, $data;
		1621	$data = $self->gender ? $female : $male;
		1622	$xml .= expand_cfpod ($self, $data);
		1623	} elsif ($code eq "H") {
		1624	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1625	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1626	"")
		1627	[$self->{hintmode}];
		1628	} else {
		1629	$xml .= "error processing '$code($data)' directive";
		1630	}
		1631	} else {
		1632	if ($pod =~ /\G(.+)/) {
		1633	warn "parse error while expanding $pod (at $1)";
		1634	}
		1635	last;
		1636	}
		1637	}
		1638
		1639	for ($xml) {
		1640	# create single paragraphs (very hackish)
		1641	s/(?<=\S)\n(?=\w)/ /g;
		1642
		1643	# compress some whitespace
		1644	s/\s+\n/\n/g; # ws line-ends
		1645	s/\n\n+/\n/g; # double lines
		1646	s/^\n+//; # beginning lines
		1647	s/\n+$//; # ending lines
		1648	}
		1649
		1650	$xml
		1651	}
		1652
		1653	no re 'eval';
		1654
		1655	sub hintmode {
		1656	$_[0]{hintmode} = $_[1] if @_ > 1;
		1657	$_[0]{hintmode}
		1658	}
		1659
1266	=item $player->ext_reply ($msgid, $msgtype, %msg)	1660	=item $player->ext_reply ($msgid, @msg)
1267		1661
1268	Sends an ext reply to the player.	1662	Sends an ext reply to the player.
1269		1663
1270	=cut	1664	=cut
1271		1665
1272	sub ext_reply($$$%) {	1666	sub ext_reply($$@) {
1273	my ($self, $id, %msg) = @_;	1667	my ($self, $id, @msg) = @_;
1274		1668
1275	$msg{msgid} = $id;	1669	$self->ns->ext_reply ($id, @msg)
1276
1277	$self->send ("ext " . cf::to_json \%msg);
1278	}	1670	}
1279		1671
1280	package cf;	1672	=item $player->ext_msg ($type, @msg)
		1673
		1674	Sends an ext event to the client.
		1675
		1676	=cut
		1677
		1678	sub ext_msg($$@) {
		1679	my ($self, $type, @msg) = @_;
		1680
		1681	$self->ns->ext_msg ($type, @msg);
		1682	}
		1683
		1684	=head3 cf::region
		1685
		1686	=over 4
		1687
		1688	=cut
		1689
		1690	package cf::region;
		1691
		1692	=item cf::region::find_by_path $path
		1693
		1694	Tries to decuce the likely region for a map knowing only its path.
		1695
		1696	=cut
		1697
		1698	sub find_by_path($) {
		1699	my ($path) = @_;
		1700
		1701	my ($match, $specificity);
		1702
		1703	for my $region (list) {
		1704	if ($region->{match} && $path =~ $region->{match}) {
		1705	($match, $specificity) = ($region, $region->specificity)
		1706	if $region->specificity > $specificity;
		1707	}
		1708	}
		1709
		1710	$match
		1711	}
1281		1712
1282	=back	1713	=back
1283
1284		1714
1285	=head3 cf::map	1715	=head3 cf::map
1286		1716
1287	=over 4	1717	=over 4
1288		1718
…		…
1291	package cf::map;	1721	package cf::map;
1292		1722
1293	use Fcntl;	1723	use Fcntl;
1294	use Coro::AIO;	1724	use Coro::AIO;
1295		1725
		1726	use overload
		1727	'""' => \&as_string,
		1728	fallback => 1;
		1729
1296	our $MAX_RESET = 3600;	1730	our $MAX_RESET = 3600;
1297	our $DEFAULT_RESET = 3000;	1731	our $DEFAULT_RESET = 3000;
1298		1732
1299	sub generate_random_map {	1733	sub generate_random_map {
1300	my ($path, $rmp) = @_;	1734	my ($self, $rmp) = @_;
1301
1302	# mit "rum" bekleckern, nicht	1735	# mit "rum" bekleckern, nicht
1303	cf::map::_create_random_map	1736	$self->_create_random_map (
1304	$path,
1305	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1737	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1306	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1738	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1307	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1739	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1308	$rmp->{exit_on_final_map},	1740	$rmp->{exit_on_final_map},
1309	$rmp->{xsize}, $rmp->{ysize},	1741	$rmp->{xsize}, $rmp->{ysize},
1310	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1742	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1311	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1743	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1312	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1744	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1313	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1745	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1314	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1746	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1315	(cf::region::find $rmp->{region})	1747	(cf::region::find $rmp->{region}), $rmp->{custom}
		1748	)
		1749	}
		1750
		1751	=item cf::map->register ($regex, $prio)
		1752
		1753	Register a handler for the map path matching the given regex at the
		1754	givne priority (higher is better, built-in handlers have priority 0, the
		1755	default).
		1756
		1757	=cut
		1758
		1759	sub register {
		1760	my (undef, $regex, $prio) = @_;
		1761	my $pkg = caller;
		1762
		1763	no strict;
		1764	push @{"$pkg\::ISA"}, __PACKAGE__;
		1765
		1766	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1767	}
		1768
		1769	# also paths starting with '/'
		1770	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1771
		1772	sub thawer_merge {
		1773	my ($self, $merge) = @_;
		1774
		1775	# we have to keep some variables in memory intact
		1776	local $self->{path};
		1777	local $self->{load_path};
		1778
		1779	$self->SUPER::thawer_merge ($merge);
		1780	}
		1781
		1782	sub normalise {
		1783	my ($path, $base) = @_;
		1784
		1785	$path = "$path"; # make sure its a string
		1786
		1787	$path =~ s/\.map$//;
		1788
		1789	# map plan:
		1790	#
		1791	# /! non-realised random map exit (special hack!)
		1792	# {... are special paths that are not being touched
		1793	# ?xxx/... are special absolute paths
		1794	# ?random/... random maps
		1795	# /... normal maps
		1796	# ~user/... per-player map of a specific user
		1797
		1798	$path =~ s/$PATH_SEP/\//go;
		1799
		1800	# treat it as relative path if it starts with
		1801	# something that looks reasonable
		1802	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1803	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1804
		1805	$base =~ s{[^/]+/?$}{};
		1806	$path = "$base/$path";
		1807	}
		1808
		1809	for ($path) {
		1810	redo if s{//}{/};
		1811	redo if s{/\.?/}{/};
		1812	redo if s{/[^/]+/\.\./}{/};
		1813	}
		1814
		1815	$path
		1816	}
		1817
		1818	sub new_from_path {
		1819	my (undef, $path, $base) = @_;
		1820
		1821	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1822
		1823	$path = normalise $path, $base;
		1824
		1825	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1826	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1827	my $self = bless cf::map::new, $pkg;
		1828	$self->{path} = $path; $self->path ($path);
		1829	$self->init; # pass $1 etc.
		1830	return $self;
		1831	}
		1832	}
		1833
		1834	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1835	()
		1836	}
		1837
		1838	sub init {
		1839	my ($self) = @_;
		1840
		1841	$self
		1842	}
		1843
		1844	sub as_string {
		1845	my ($self) = @_;
		1846
		1847	"$self->{path}"
		1848	}
		1849
		1850	# the displayed name, this is a one way mapping
		1851	sub visible_name {
		1852	&as_string
		1853	}
		1854
		1855	# the original (read-only) location
		1856	sub load_path {
		1857	my ($self) = @_;
		1858
		1859	"$MAPDIR/$self->{path}.map"
		1860	}
		1861
		1862	# the temporary/swap location
		1863	sub save_path {
		1864	my ($self) = @_;
		1865
		1866	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1867	"$TMPDIR/$path.map"
		1868	}
		1869
		1870	# the unique path, undef == no special unique path
		1871	sub uniq_path {
		1872	my ($self) = @_;
		1873
		1874	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1875	"$UNIQUEDIR/$path"
1316	}	1876	}
1317		1877
1318	# and all this just because we cannot iterate over	1878	# and all this just because we cannot iterate over
1319	# all maps in C++...	1879	# all maps in C++...
1320	sub change_all_map_light {	1880	sub change_all_map_light {
…		…
1322		1882
1323	$_->change_map_light ($change)	1883	$_->change_map_light ($change)
1324	for grep $_->outdoor, values %cf::MAP;	1884	for grep $_->outdoor, values %cf::MAP;
1325	}	1885	}
1326		1886
		1887	sub decay_objects {
		1888	my ($self) = @_;
		1889
		1890	return if $self->{deny_reset};
		1891
		1892	$self->do_decay_objects;
		1893	}
		1894
		1895	sub unlink_save {
		1896	my ($self) = @_;
		1897
		1898	utf8::encode (my $save = $self->save_path);
		1899	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1900	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1901	}
		1902
1327	sub try_load_header($) {	1903	sub load_header_from($) {
1328	my ($path) = @_;	1904	my ($self, $path) = @_;
1329		1905
1330	utf8::encode $path;	1906	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	1907	my $f = new_from_file cf::object::thawer $path
1332	or return;	1908	or return;
1333		1909
1334	my $map = cf::map::new	1910	$self->_load_header ($f)
1335	or return;	1911	or return;
1336		1912
1337	# for better error messages only, will be overwritten	1913	local $MAP_LOADING{$self->{path}} = $self;
1338	$map->path ($path);	1914	$f->resolve_delayed_derefs;
1339		1915
1340	$map->load_header ($path)	1916	$self->{load_path} = $path;
		1917
		1918	1
		1919	}
		1920
		1921	sub load_header_orig {
		1922	my ($self) = @_;
		1923
		1924	$self->load_header_from ($self->load_path)
		1925	}
		1926
		1927	sub load_header_temp {
		1928	my ($self) = @_;
		1929
		1930	$self->load_header_from ($self->save_path)
		1931	}
		1932
		1933	sub prepare_temp {
		1934	my ($self) = @_;
		1935
		1936	$self->last_access ((delete $self->{last_access})
		1937	|| $cf::RUNTIME); #d#
		1938	# safety
		1939	$self->{instantiate_time} = $cf::RUNTIME
		1940	if $self->{instantiate_time} > $cf::RUNTIME;
		1941	}
		1942
		1943	sub prepare_orig {
		1944	my ($self) = @_;
		1945
		1946	$self->{load_original} = 1;
		1947	$self->{instantiate_time} = $cf::RUNTIME;
		1948	$self->last_access ($cf::RUNTIME);
		1949	$self->instantiate;
		1950	}
		1951
		1952	sub load_header {
		1953	my ($self) = @_;
		1954
		1955	if ($self->load_header_temp) {
		1956	$self->prepare_temp;
		1957	} else {
		1958	$self->load_header_orig
1341	or return;	1959	or return;
		1960	$self->prepare_orig;
		1961	}
1342		1962
1343	$map->{load_path} = $path;	1963	$self->{deny_reset} = 1
		1964	if $self->no_reset;
1344		1965
1345	$map	1966	$self->default_region (cf::region::find_by_path $self->{path})
		1967	unless $self->default_region;
		1968
		1969	1
1346	}	1970	}
1347		1971
1348	sub find;	1972	sub find;
1349	sub find {	1973	sub find {
1350	my ($path, $origin) = @_;	1974	my ($path, $origin) = @_;
1351		1975
1352	#warn "find<$path,$origin>\n";#d#
1353
1354	$path = new cf::path $path, $origin && $origin->path;	1976	$path = normalise $path, $origin && $origin->path;
1355	my $key = $path->as_string;
1356		1977
		1978	cf::lock_wait "map_data:$path";#d#remove
1357	cf::lock_wait "map_find:$key";	1979	cf::lock_wait "map_find:$path";
1358		1980
1359	$cf::MAP{$key} || do {	1981	$cf::MAP{$path} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	1982	my $guard1 = cf::lock_acquire "map_find:$path";
		1983	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1361		1984
1362	# do it the slow way	1985	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;	1986	or return;
1381		1987
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;	1988	$map->{last_save} = $cf::RUNTIME;
1394		1989
1395	Coro::cede;	1990	$map->load_header
		1991	or return;
1396		1992
1397	if ($map->should_reset) {	1993	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1994	# doing this can freeze the server in a sync job, obviously
		1995	#$cf::WAIT_FOR_TICK->wait;
		1996	undef $guard1;
		1997	undef $guard2;
1398	$map->reset;	1998	$map->reset;
1399	undef $guard;
1400	$map = find $path	1999	return find $path;
1401	or return;
1402	}	2000	}
1403		2001
1404	$cf::MAP{$key} = $map	2002	$cf::MAP{$path} = $map
1405	}	2003	}
1406	}	2004	}
		2005
		2006	sub pre_load { }
		2007	sub post_load { }
1407		2008
1408	sub load {	2009	sub load {
1409	my ($self) = @_;	2010	my ($self) = @_;
1410		2011
		2012	local $self->{deny_reset} = 1; # loading can take a long time
		2013
1411	my $path = $self->{path};	2014	my $path = $self->{path};
		2015
		2016	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2017	my $guard = cf::lock_acquire "map_data:$path";
1413		2018
		2019	return unless $self->valid;
1414	return if $self->in_memory != cf::MAP_SWAPPED;	2020	return unless $self->in_memory == cf::MAP_SWAPPED;
1415		2021
1416	$self->in_memory (cf::MAP_LOADING);	2022	$self->in_memory (cf::MAP_LOADING);
1417		2023
1418	$self->alloc;	2024	$self->alloc;
1419	$self->load_objects ($self->{load_path}, 1)	2025
		2026	$self->pre_load;
		2027	cf::cede_to_tick;
		2028
		2029	my $f = new_from_file cf::object::thawer $self->{load_path};
		2030	$f->skip_block;
		2031	$self->_load_objects ($f)
1420	or return;	2032	or return;
1421		2033
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2034	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};	2035	if delete $self->{load_original};
1424		2036
1425	if (my $uniq = $path->uniq_path) {	2037	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	2038	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	2039	unless (aio_stat $uniq) {
		2040	if (my $f = new_from_file cf::object::thawer $uniq) {
1428	$self->clear_unique_items;	2041	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	2042	$self->_load_objects ($f);
		2043	$f->resolve_delayed_derefs;
		2044	}
1430	}	2045	}
1431	}	2046	}
1432		2047
1433	Coro::cede;	2048	$f->resolve_delayed_derefs;
1434		2049
		2050	cf::cede_to_tick;
1435	# now do the right thing for maps	2051	# now do the right thing for maps
1436	$self->link_multipart_objects;	2052	$self->link_multipart_objects;
1437
1438	if ($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)	2053	$self->difficulty ($self->estimate_difficulty)
1447	unless $self->difficulty;	2054	unless $self->difficulty;
		2055	cf::cede_to_tick;
		2056
		2057	unless ($self->{deny_activate}) {
		2058	$self->decay_objects;
		2059	$self->fix_auto_apply;
		2060	$self->update_buttons;
		2061	cf::cede_to_tick;
		2062	$self->set_darkness_map;
		2063	cf::cede_to_tick;
1448	$self->activate;	2064	$self->activate;
1449	}	2065	}
1450		2066
1451	Coro::cede;	2067	$self->{last_save} = $cf::RUNTIME;
		2068	$self->last_access ($cf::RUNTIME);
1452		2069
1453	$self->in_memory (cf::MAP_IN_MEMORY);	2070	$self->in_memory (cf::MAP_IN_MEMORY);
		2071	}
		2072
		2073	$self->post_load;
		2074	}
		2075
		2076	sub customise_for {
		2077	my ($self, $ob) = @_;
		2078
		2079	return find "~" . $ob->name . "/" . $self->{path}
		2080	if $self->per_player;
		2081
		2082	# return find "?party/" . $ob->name . "/" . $self->{path}
		2083	# if $self->per_party;
		2084
		2085	$self
		2086	}
		2087
		2088	# find and load all maps in the 3x3 area around a map
		2089	sub load_neighbours {
		2090	my ($map) = @_;
		2091
		2092	my @neigh; # diagonal neighbours
		2093
		2094	for (0 .. 3) {
		2095	my $neigh = $map->tile_path ($_)
		2096	or next;
		2097	$neigh = find $neigh, $map
		2098	or next;
		2099	$neigh->load;
		2100
		2101	push @neigh,
		2102	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2103	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2104	}
		2105
		2106	for (grep defined $_->[0], @neigh) {
		2107	my ($path, $origin) = @$_;
		2108	my $neigh = find $path, $origin
		2109	or next;
		2110	$neigh->load;
		2111	}
1454	}	2112	}
1455		2113
1456	sub find_sync {	2114	sub find_sync {
1457	my ($path, $origin) = @_;	2115	my ($path, $origin) = @_;
1458		2116
1459	cf::sync_job { cf::map::find $path, $origin }	2117	cf::sync_job { find $path, $origin }
1460	}	2118	}
1461		2119
1462	sub do_load_sync {	2120	sub do_load_sync {
1463	my ($map) = @_;	2121	my ($map) = @_;
1464		2122
		2123	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2124	if $Coro::current == $Coro::main;
		2125
1465	cf::sync_job { $map->load };	2126	cf::sync_job { $map->load };
		2127	}
		2128
		2129	our %MAP_PREFETCH;
		2130	our $MAP_PREFETCHER = undef;
		2131
		2132	sub find_async {
		2133	my ($path, $origin, $load) = @_;
		2134
		2135	$path = normalise $path, $origin && $origin->{path};
		2136
		2137	if (my $map = $cf::MAP{$path}) {
		2138	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2139	}
		2140
		2141	$MAP_PREFETCH{$path} |= $load;
		2142
		2143	$MAP_PREFETCHER ||= cf::async {
		2144	$Coro::current->{desc} = "map prefetcher";
		2145
		2146	while (%MAP_PREFETCH) {
		2147	while (my ($k, $v) = each %MAP_PREFETCH) {
		2148	if (my $map = find $k) {
		2149	$map->load if $v;
		2150	}
		2151
		2152	delete $MAP_PREFETCH{$k};
		2153	}
		2154	}
		2155	undef $MAP_PREFETCHER;
		2156	};
		2157	$MAP_PREFETCHER->prio (6);
		2158
		2159	()
1466	}	2160	}
1467		2161
1468	sub save {	2162	sub save {
1469	my ($self) = @_;	2163	my ($self) = @_;
1470		2164
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	2165	my $lock = cf::lock_acquire "map_data:$self->{path}";
1472		2166
1473	$self->{last_save} = $cf::RUNTIME;	2167	$self->{last_save} = $cf::RUNTIME;
1474		2168
1475	return unless $self->dirty;	2169	return unless $self->dirty;
1476		2170
1477	my $save = $self->{path}->save_path; utf8::encode $save;	2171	my $save = $self->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2172	my $uniq = $self->uniq_path; utf8::encode $uniq;
1479		2173
1480	$self->{load_path} = $save;	2174	$self->{load_path} = $save;
1481		2175
1482	return if $self->{deny_save};	2176	return if $self->{deny_save};
1483		2177
1484	local $self->{last_access} = $self->last_access;#d#	2178	local $self->{last_access} = $self->last_access;#d#
1485		2179
1486	cf::async {	2180	cf::async {
		2181	$Coro::current->{desc} = "map player save";
1487	$_->contr->save for $self->players;	2182	$_->contr->save for $self->players;
1488	};	2183	};
1489		2184
1490	if ($uniq) {	2185	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2186	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);	2187	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {	2188	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2189	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}	2190	}
1496	}	2191	}
1497		2192
1498	sub swap_out {	2193	sub swap_out {
1499	my ($self) = @_;	2194	my ($self) = @_;
1500		2195
1501	# save first because save cedes	2196	# save first because save cedes
1502	$self->save;	2197	$self->save;
1503		2198
1504	my $lock = cf::lock_acquire "map_data:" . $self->path;	2199	my $lock = cf::lock_acquire "map_data:$self->{path}";
1505		2200
1506	return if $self->players;	2201	return if $self->players;
1507	return if $self->in_memory != cf::MAP_IN_MEMORY;	2202	return if $self->in_memory != cf::MAP_IN_MEMORY;
1508	return if $self->{deny_save};	2203	return if $self->{deny_save};
1509		2204
		2205	$self->in_memory (cf::MAP_SWAPPED);
		2206
		2207	$self->deactivate;
		2208	$_->clear_links_to ($self) for values %cf::MAP;
1510	$self->clear;	2209	$self->clear;
1511	$self->in_memory (cf::MAP_SWAPPED);
1512	}	2210	}
1513		2211
1514	sub reset_at {	2212	sub reset_at {
1515	my ($self) = @_;	2213	my ($self) = @_;
1516		2214
1517	# TODO: safety, remove and allow resettable per-player maps	2215	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};
1519	return 1e99 if $self->{deny_reset};	2216	return 1e99 if $self->{deny_reset};
1520		2217
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2218	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2219	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		2220
…		…
1528	my ($self) = @_;	2225	my ($self) = @_;
1529		2226
1530	$self->reset_at <= $cf::RUNTIME	2227	$self->reset_at <= $cf::RUNTIME
1531	}	2228	}
1532		2229
1533	sub unlink_save {
1534	my ($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	$self->save;
1552	}
1553
1554	sub reset {	2230	sub reset {
1555	my ($self) = @_;	2231	my ($self) = @_;
1556		2232
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	2233	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		2234
1559	return if $self->players;	2235	return if $self->players;
1560	return if $self->{path}{user_rel};#d#
1561		2236
1562	warn "resetting map ", $self->path;#d#	2237	warn "resetting map ", $self->path;
		2238
		2239	$self->in_memory (cf::MAP_SWAPPED);
		2240
		2241	# need to save uniques path
		2242	unless ($self->{deny_save}) {
		2243	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2244
		2245	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2246	if $uniq;
		2247	}
1563		2248
1564	delete $cf::MAP{$self->path};	2249	delete $cf::MAP{$self->path};
1565		2250
		2251	$self->deactivate;
1566	$_->clear_links_to ($self) for values %cf::MAP;	2252	$_->clear_links_to ($self) for values %cf::MAP;
		2253	$self->clear;
1567		2254
1568	$self->unlink_save;	2255	$self->unlink_save;
1569	$self->destroy;	2256	$self->destroy;
1570	}	2257	}
1571		2258
1572	my $nuke_counter = "aaaa";	2259	my $nuke_counter = "aaaa";
1573		2260
1574	sub nuke {	2261	sub nuke {
1575	my ($self) = @_;	2262	my ($self) = @_;
1576		2263
		2264	{
		2265	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2266
		2267	delete $cf::MAP{$self->path};
		2268
		2269	$self->unlink_save;
		2270
		2271	bless $self, "cf::map";
		2272	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	2273	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	2274	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	2275	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2276
		2277	$cf::MAP{$self->path} = $self;
		2278	}
		2279
1580	$self->reset; # polite request, might not happen	2280	$self->reset; # polite request, might not happen
1581	}	2281	}
1582		2282
1583	sub customise_for {	2283	=item $maps = cf::map::tmp_maps
1584	my ($map, $ob) = @_;
1585		2284
1586	if ($map->per_player) {	2285	Returns an arrayref with all map paths of currently instantiated and saved
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2286	maps. May block.
		2287
		2288	=cut
		2289
		2290	sub tmp_maps() {
1588	}	2291	[
1589		2292	map {
1590	$map	2293	utf8::decode $_;
		2294	/\.map$/
		2295	? normalise $_
		2296	: ()
		2297	} @{ aio_readdir $TMPDIR or [] }
		2298	]
1591	}	2299	}
1592		2300
1593	sub emergency_save {	2301	=item $maps = cf::map::random_maps
1594	my $freeze_guard = cf::freeze_mainloop;
1595		2302
1596	warn "enter emergency perl save\n";	2303	Returns an arrayref with all map paths of currently instantiated and saved
		2304	random maps. May block.
1597		2305
1598	cf::sync_job {	2306	=cut
1599	warn "begin emergency player save\n";
1600	$_->save for values %cf::PLAYER;
1601	warn "end emergency player save\n";
1602		2307
1603	warn "begin emergency map save\n";	2308	sub random_maps() {
1604	$_->save for values %cf::MAP;	2309	[
1605	warn "end emergency map save\n";	2310	map {
1606	};	2311	utf8::decode $_;
		2312	/\.map$/
		2313	? normalise "?random/$_"
		2314	: ()
		2315	} @{ aio_readdir $RANDOMDIR or [] }
		2316	]
		2317	}
1607		2318
1608	warn "leave emergency perl save\n";	2319	=item cf::map::unique_maps
		2320
		2321	Returns an arrayref of paths of all shared maps that have
		2322	instantiated unique items. May block.
		2323
		2324	=cut
		2325
		2326	sub unique_maps() {
		2327	[
		2328	map {
		2329	utf8::decode $_;
		2330	/\.map$/
		2331	? normalise $_
		2332	: ()
		2333	} @{ aio_readdir $UNIQUEDIR or [] }
		2334	]
1609	}	2335	}
1610		2336
1611	package cf;	2337	package cf;
1612		2338
1613	=back	2339	=back
1614		2340
		2341	=head3 cf::object
		2342
		2343	=cut
		2344
		2345	package cf::object;
		2346
		2347	=over 4
		2348
		2349	=item $ob->inv_recursive
		2350
		2351	Returns the inventory of the object _and_ their inventories, recursively.
		2352
		2353	=cut
		2354
		2355	sub inv_recursive_;
		2356	sub inv_recursive_ {
		2357	map { $_, inv_recursive_ $_->inv } @_
		2358	}
		2359
		2360	sub inv_recursive {
		2361	inv_recursive_ inv $_[0]
		2362	}
		2363
		2364	=item $ref = $ob->ref
		2365
		2366	creates and returns a persistent reference to an objetc that can be stored as a string.
		2367
		2368	=item $ob = cf::object::deref ($refstring)
		2369
		2370	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2371	even if the object actually exists. May block.
		2372
		2373	=cut
		2374
		2375	sub deref {
		2376	my ($ref) = @_;
		2377
		2378	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2379	my ($uuid, $name) = ($1, $2);
		2380	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2381	or return;
		2382	$pl->ob->uuid eq $uuid
		2383	or return;
		2384
		2385	$pl->ob
		2386	} else {
		2387	warn "$ref: cannot resolve object reference\n";
		2388	undef
		2389	}
		2390	}
		2391
		2392	package cf;
		2393
		2394	=back
1615		2395
1616	=head3 cf::object::player	2396	=head3 cf::object::player
1617		2397
1618	=over 4	2398	=over 4
1619		2399
…		…
1633		2413
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2414	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2415
1636	if ($self->{record_replies}) {	2416	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2417	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2418
1638	} else {	2419	} else {
		2420	my $pl = $self->contr;
		2421
		2422	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2423	my $dialog = $pl->{npc_dialog};
		2424	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2425
		2426	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2427	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2428	$self->message ($msg, $flags);
		2429	}
1641	}	2430	}
		2431	}
		2432
		2433	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2434
		2435	=cut
		2436
		2437	sub cf::object::send_msg {
		2438	my $pl = shift->contr
		2439	or return;
		2440	$pl->send_msg (@_);
1642	}	2441	}
1643		2442
1644	=item $player_object->may ("access")	2443	=item $player_object->may ("access")
1645		2444
1646	Returns wether the given player is authorized to access resource "access"	2445	Returns wether the given player is authorized to access resource "access"
…		…
1659		2458
1660	=item $player_object->enter_link	2459	=item $player_object->enter_link
1661		2460
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2461	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2462
1664	The player should be reaosnably safe there for short amounts of time. You	2463	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.	2464	I<MUST> call C<leave_link> as soon as possible, though.
1666		2465
		2466	Will never block.
		2467
1667	=item $player_object->leave_link ($map, $x, $y)	2468	=item $player_object->leave_link ($map, $x, $y)
1668		2469
1669	Moves the player out of the specila link map onto the given map. If the	2470	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	2471	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	2472	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	2473	fails, to the emergency map position.
1673		2474
1674	Might block.	2475	Might block.
1675		2476
1676	=cut	2477	=cut
		2478
		2479	sub link_map {
		2480	unless ($LINK_MAP) {
		2481	$LINK_MAP = cf::map::find "{link}"
		2482	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2483	$LINK_MAP->load;
		2484	}
		2485
		2486	$LINK_MAP
		2487	}
1677		2488
1678	sub cf::object::player::enter_link {	2489	sub cf::object::player::enter_link {
1679	my ($self) = @_;	2490	my ($self) = @_;
1680		2491
1681	$self->deactivate_recursive;	2492	$self->deactivate_recursive;
1682		2493
1683	return if $self->map == $LINK_MAP;	2494	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		2495
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2496	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	2497	if $self->map && $self->map->{path} ne "{link}";
1687		2498
1688	$self->enter_map ($LINK_MAP, 20, 20);	2499	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1689	}	2500	}
1690		2501
1691	sub cf::object::player::leave_link {	2502	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	2503	my ($self, $map, $x, $y) = @_;
		2504
		2505	return unless $self->contr->active;
1693		2506
1694	my $link_pos = delete $self->{_link_pos};	2507	my $link_pos = delete $self->{_link_pos};
1695		2508
1696	unless ($map) {	2509	unless ($map) {
1697	# restore original map position	2510	# restore original map position
…		…
1711	# use -1 or undef as default coordinates, not 0, 0	2524	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	2525	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	2526	if $x <=0 && $y <= 0;
1714		2527
1715	$map->load;	2528	$map->load;
		2529	$map->load_neighbours;
1716		2530
1717	return unless $self->contr->active;	2531	return unless $self->contr->active;
1718	$self->activate_recursive;	2532	$self->activate_recursive;
		2533
		2534	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1719	$self->enter_map ($map, $x, $y);	2535	$self->enter_map ($map, $x, $y);
1720	}	2536	}
1721		2537
1722	cf::player->attach (	2538	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1723	on_logout => sub {
1724	my ($pl) = @_;
1725		2539
1726	# abort map switching before logout	2540	Moves the player to the given map-path and coordinates by first freezing
1727	if ($pl->ob->{_link_pos}) {	2541	her, loading and preparing them map, calling the provided $check callback
1728	cf::sync_job {	2542	that has to return the map if sucecssful, and then unfreezes the player on
1729	$pl->ob->leave_link	2543	the new (success) or old (failed) map position. In either case, $done will
1730	};	2544	be called at the end of this process.
1731	}
1732	},
1733	on_login => sub {
1734	my ($pl) = @_;
1735		2545
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	2546	=cut
		2547
		2548	our $GOTOGEN;
1757		2549
1758	sub cf::object::player::goto {	2550	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	2551	my ($self, $path, $x, $y, $check, $done) = @_;
1760		2552
1761	$path = new cf::path $path;	2553	# do generation counting so two concurrent goto's will be executed in-order
1762	$path ne "/" or Carp::cluck ("oy");#d#	2554	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		2555
1764	$self->enter_link;	2556	$self->enter_link;
1765		2557
1766	(async {	2558	(async {
1767	my $map = cf::map::find $path->as_string;	2559	$Coro::current->{desc} = "player::goto $path $x $y";
		2560
		2561	# *tag paths override both path and x|y
		2562	if ($path =~ /^\*(.*)$/) {
		2563	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2564	my $ob = $obs[rand @obs];
		2565
		2566	# see if we actually can go there
		2567	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2568	$ob = $obs[rand @obs];
		2569	} else {
		2570	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2571	}
		2572	# else put us there anyways for now #d#
		2573
		2574	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2575	} else {
		2576	($path, $x, $y) = (undef, undef, undef);
		2577	}
		2578	}
		2579
		2580	my $map = eval {
		2581	my $map = defined $path ? cf::map::find $path : undef;
		2582
		2583	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	2584	$map = $map->customise_for ($self);
1769		2585	$map = $check->($map) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	2586	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2587	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2588	}
1774		2589
		2590	$map
		2591	};
		2592
		2593	if ($@) {
		2594	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2595	LOG llevError | logBacktrace, Carp::longmess $@;
		2596	}
		2597
		2598	if ($gen == $self->{_goto_generation}) {
		2599	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	2600	$self->leave_link ($map, $x, $y);
		2601	}
		2602
		2603	$done->() if $done;
1776	})->prio (1);	2604	})->prio (1);
1777	}	2605	}
1778		2606
1779	=item $player_object->enter_exit ($exit_object)	2607	=item $player_object->enter_exit ($exit_object)
1780		2608
…		…
1782		2610
1783	sub parse_random_map_params {	2611	sub parse_random_map_params {
1784	my ($spec) = @_;	2612	my ($spec) = @_;
1785		2613
1786	my $rmp = { # defaults	2614	my $rmp = { # defaults
1787	xsize => 10,	2615	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2616	ysize => (cf::rndm 15, 40),
		2617	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2618	#layout => string,
1789	};	2619	};
1790		2620
1791	for (split /\n/, $spec) {	2621	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2622	my ($k, $v) = split /\s+/, $_, 2;
1793		2623
…		…
1797	$rmp	2627	$rmp
1798	}	2628	}
1799		2629
1800	sub prepare_random_map {	2630	sub prepare_random_map {
1801	my ($exit) = @_;	2631	my ($exit) = @_;
		2632
		2633	my $guard = cf::lock_acquire "exit_prepare:$exit";
1802		2634
1803	# all this does is basically replace the /! path by	2635	# all this does is basically replace the /! path by
1804	# a new random map path (?random/...) with a seed	2636	# a new random map path (?random/...) with a seed
1805	# that depends on the exit object	2637	# that depends on the exit object
1806		2638
1807	my $rmp = parse_random_map_params $exit->msg;	2639	my $rmp = parse_random_map_params $exit->msg;
1808		2640
1809	if ($exit->map) {	2641	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2642	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2643	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2644	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2645	$rmp->{origin_y} = $exit->y;
1814	}	2646	}
1815		2647
1816	$rmp->{random_seed} ||= $exit->random_seed;	2648	$rmp->{random_seed} ||= $exit->random_seed;
1817		2649
1818	my $data = cf::to_json $rmp;	2650	my $data = cf::encode_json $rmp;
1819	my $md5 = Digest::MD5::md5_hex $data;	2651	my $md5 = Digest::MD5::md5_hex $data;
		2652	my $meta = "$RANDOMDIR/$md5.meta";
1820		2653
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2654	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2655	aio_write $fh, 0, (length $data), $data, 0;
		2656	undef $fh;
		2657	aio_rename "$meta~", $meta;
1823		2658
1824	$exit->slaying ("?random/$md5");	2659	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2660	$exit->msg (undef);
1826	}	2661	}
1827	}	2662	}
…		…
1829	sub cf::object::player::enter_exit {	2664	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2665	my ($self, $exit) = @_;
1831		2666
1832	return unless $self->type == cf::PLAYER;	2667	return unless $self->type == cf::PLAYER;
1833		2668
		2669	if ($exit->slaying eq "/!") {
		2670	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2671	# the problem is that $exit might not survive long enough
		2672	# so it needs to be done right now, right here
		2673	cf::sync_job { prepare_random_map $exit };
		2674	}
		2675
		2676	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2677	my $hp = $exit->stats->hp;
		2678	my $sp = $exit->stats->sp;
		2679
1834	$self->enter_link;	2680	$self->enter_link;
1835		2681
		2682	# if exit is damned, update players death & WoR home-position
		2683	$self->contr->savebed ($slaying, $hp, $sp)
		2684	if $exit->flag (FLAG_DAMNED);
		2685
1836	(async {	2686	(async {
		2687	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2688
1837	$self->deactivate_recursive; # just to be sure	2689	$self->deactivate_recursive; # just to be sure
1838	unless (eval {	2690	unless (eval {
1839	prepare_random_map $exit	2691	$self->goto ($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		2692
1845	1;	2693	1;
1846	}) {	2694	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2695	$self->message ("Something went wrong deep within the crossfire server. "
1848	. "I'll try to bring you back to the map you were before. "	2696	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2697	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2698	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2699
1852	warn "ERROR in enter_exit: $@";	2700	warn "ERROR in enter_exit: $@";
1853	$self->leave_link;	2701	$self->leave_link;
1854	}	2702	}
1855	})->prio (1);	2703	})->prio (1);
…		…
1868		2716
1869	sub cf::client::send_drawinfo {	2717	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2718	my ($self, $text, $flags) = @_;
1871		2719
1872	utf8::encode $text;	2720	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2721	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2722	}
1875		2723
		2724	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2725
		2726	Send a drawinfo or msg packet to the client, formatting the msg for the
		2727	client if neccessary. C<$type> should be a string identifying the type of
		2728	the message, with C<log> being the default. If C<$color> is negative, suppress
		2729	the message unless the client supports the msg packet.
		2730
		2731	=cut
		2732
		2733	# non-persistent channels (usually the info channel)
		2734	our %CHANNEL = (
		2735	"c/identify" => {
		2736	id => "infobox",
		2737	title => "Identify",
		2738	reply => undef,
		2739	tooltip => "Items recently identified",
		2740	},
		2741	"c/examine" => {
		2742	id => "infobox",
		2743	title => "Examine",
		2744	reply => undef,
		2745	tooltip => "Signs and other items you examined",
		2746	},
		2747	"c/book" => {
		2748	id => "infobox",
		2749	title => "Book",
		2750	reply => undef,
		2751	tooltip => "The contents of a note or book",
		2752	},
		2753	"c/lookat" => {
		2754	id => "infobox",
		2755	title => "Look",
		2756	reply => undef,
		2757	tooltip => "What you saw there",
		2758	},
		2759	"c/who" => {
		2760	id => "infobox",
		2761	title => "Players",
		2762	reply => undef,
		2763	tooltip => "Shows players who are currently online",
		2764	},
		2765	"c/body" => {
		2766	id => "infobox",
		2767	title => "Body Parts",
		2768	reply => undef,
		2769	tooltip => "Shows which body parts you posess and are available",
		2770	},
		2771	"c/uptime" => {
		2772	id => "infobox",
		2773	title => "Uptime",
		2774	reply => undef,
		2775	tooltip => "How long the server has been running since last restart",
		2776	},
		2777	"c/mapinfo" => {
		2778	id => "infobox",
		2779	title => "Map Info",
		2780	reply => undef,
		2781	tooltip => "Information related to the maps",
		2782	},
		2783	);
		2784
		2785	sub cf::client::send_msg {
		2786	my ($self, $channel, $msg, $color, @extra) = @_;
		2787
		2788	$msg = $self->pl->expand_cfpod ($msg);
		2789
		2790	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2791
		2792	# check predefined channels, for the benefit of C
		2793	if ($CHANNEL{$channel}) {
		2794	$channel = $CHANNEL{$channel};
		2795
		2796	$self->ext_msg (channel_info => $channel)
		2797	if $self->can_msg;
		2798
		2799	$channel = $channel->{id};
		2800
		2801	} elsif (ref $channel) {
		2802	# send meta info to client, if not yet sent
		2803	unless (exists $self->{channel}{$channel->{id}}) {
		2804	$self->{channel}{$channel->{id}} = $channel;
		2805	$self->ext_msg (channel_info => $channel)
		2806	if $self->can_msg;
		2807	}
		2808
		2809	$channel = $channel->{id};
		2810	}
		2811
		2812	return unless @extra || length $msg;
		2813
		2814	if ($self->can_msg) {
		2815	# default colour, mask it out
		2816	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2817	if $color & cf::NDI_DEF;
		2818
		2819	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2820	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2821	} else {
		2822	if ($color >= 0) {
		2823	# replace some tags by gcfclient-compatible ones
		2824	for ($msg) {
		2825	1 while
		2826	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2827	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2828	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2829	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2830	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2831	}
		2832
		2833	$color &= cf::NDI_COLOR_MASK;
		2834
		2835	utf8::encode $msg;
		2836
		2837	if (0 && $msg =~ /\[/) {
		2838	# COMMAND/INFO
		2839	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2840	} else {
		2841	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2842	$self->send_packet ("drawinfo $color $msg")
		2843	}
		2844	}
		2845	}
		2846	}
		2847
		2848	=item $client->ext_msg ($type, @msg)
		2849
		2850	Sends an ext event to the client.
		2851
		2852	=cut
		2853
		2854	sub cf::client::ext_msg($$@) {
		2855	my ($self, $type, @msg) = @_;
		2856
		2857	if ($self->extcmd == 2) {
		2858	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2859	} elsif ($self->extcmd == 1) { # TODO: remove
		2860	push @msg, msgtype => "event_$type";
		2861	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2862	}
		2863	}
		2864
		2865	=item $client->ext_reply ($msgid, @msg)
		2866
		2867	Sends an ext reply to the client.
		2868
		2869	=cut
		2870
		2871	sub cf::client::ext_reply($$@) {
		2872	my ($self, $id, @msg) = @_;
		2873
		2874	if ($self->extcmd == 2) {
		2875	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2876	} elsif ($self->extcmd == 1) {
		2877	#TODO: version 1, remove
		2878	unshift @msg, msgtype => "reply", msgid => $id;
		2879	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2880	}
		2881	}
1876		2882
1877	=item $success = $client->query ($flags, "text", \&cb)	2883	=item $success = $client->query ($flags, "text", \&cb)
1878		2884
1879	Queues a query to the client, calling the given callback with	2885	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>,	2886	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>.	2887	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1882		2888
1883	Queries can fail, so check the return code. Or don't, as queries will become	2889	Queries can fail, so check the return code. Or don't, as queries will
1884	reliable at some point in the future.	2890	become reliable at some point in the future.
1885		2891
1886	=cut	2892	=cut
1887		2893
1888	sub cf::client::query {	2894	sub cf::client::query {
1889	my ($self, $flags, $text, $cb) = @_;	2895	my ($self, $flags, $text, $cb) = @_;
…		…
1897	utf8::encode $text;	2903	utf8::encode $text;
1898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2904	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1899		2905
1900	$self->send_packet ($self->{query_queue}[0][0])	2906	$self->send_packet ($self->{query_queue}[0][0])
1901	if @{ $self->{query_queue} } == 1;	2907	if @{ $self->{query_queue} } == 1;
		2908
		2909	1
1902	}	2910	}
1903		2911
1904	cf::client->attach (	2912	cf::client->attach (
		2913	on_connect => sub {
		2914	my ($ns) = @_;
		2915
		2916	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2917	},
1905	on_reply => sub {	2918	on_reply => sub {
1906	my ($ns, $msg) = @_;	2919	my ($ns, $msg) = @_;
1907		2920
1908	# this weird shuffling is so that direct followup queries	2921	# this weird shuffling is so that direct followup queries
1909	# get handled first	2922	# get handled first
1910	my $queue = delete $ns->{query_queue}	2923	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	2924	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		2925
1913	(shift @$queue)->[1]->($msg);	2926	(shift @$queue)->[1]->($msg);
		2927	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		2928
1915	push @{ $ns->{query_queue} }, @$queue;	2929	push @{ $ns->{query_queue} }, @$queue;
1916		2930
1917	if (@{ $ns->{query_queue} } == @$queue) {	2931	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	2932	if (@$queue) {
…		…
1920	} else {	2934	} else {
1921	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2935	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1922	}	2936	}
1923	}	2937	}
1924	},	2938	},
		2939	on_exticmd => sub {
		2940	my ($ns, $buf) = @_;
		2941
		2942	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2943
		2944	if (ref $msg) {
		2945	my ($type, $reply, @payload) =
		2946	"ARRAY" eq ref $msg
		2947	? @$msg
		2948	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2949
		2950	my @reply;
		2951
		2952	if (my $cb = $EXTICMD{$type}) {
		2953	@reply = $cb->($ns, @payload);
		2954	}
		2955
		2956	$ns->ext_reply ($reply, @reply)
		2957	if $reply;
		2958
		2959	} else {
		2960	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2961	}
		2962
		2963	cf::override;
		2964	},
1925	);	2965	);
1926		2966
1927	=item $client->async (\&cb)	2967	=item $client->async (\&cb)
1928		2968
1929	Create a new coroutine, running the specified callback. The coroutine will	2969	Create a new coroutine, running the specified callback. The coroutine will
…		…
1970	our $safe = new Safe "safe";	3010	our $safe = new Safe "safe";
1971	our $safe_hole = new Safe::Hole;	3011	our $safe_hole = new Safe::Hole;
1972		3012
1973	$SIG{FPE} = 'IGNORE';	3013	$SIG{FPE} = 'IGNORE';
1974		3014
1975	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3015	$safe->permit_only (Opcode::opset qw(
		3016	:base_core :base_mem :base_orig :base_math
		3017	grepstart grepwhile mapstart mapwhile
		3018	sort time
		3019	));
1976		3020
1977	# here we export the classes and methods available to script code	3021	# here we export the classes and methods available to script code
1978		3022
1979	=pod	3023	=pod
1980		3024
1981	The following fucntions and emthods are available within a safe environment:	3025	The following functions and methods are available within a safe environment:
1982		3026
1983	cf::object contr pay_amount pay_player map	3027	cf::object
		3028	contr pay_amount pay_player map x y force_find force_add destroy
		3029	insert remove name archname title slaying race decrease_ob_nr
		3030
1984	cf::object::player player	3031	cf::object::player
1985	cf::player peaceful	3032	player
1986	cf::map trigger	3033
		3034	cf::player
		3035	peaceful
		3036
		3037	cf::map
		3038	trigger
1987		3039
1988	=cut	3040	=cut
1989		3041
1990	for (	3042	for (
1991	["cf::object" => qw(contr pay_amount pay_player map)],	3043	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3044	insert remove inv name archname title slaying race
		3045	decrease_ob_nr destroy)],
1992	["cf::object::player" => qw(player)],	3046	["cf::object::player" => qw(player)],
1993	["cf::player" => qw(peaceful)],	3047	["cf::player" => qw(peaceful)],
1994	["cf::map" => qw(trigger)],	3048	["cf::map" => qw(trigger)],
1995	) {	3049	) {
1996	no strict 'refs';	3050	no strict 'refs';
…		…
2067	=back	3121	=back
2068		3122
2069	=cut	3123	=cut
2070		3124
2071	#############################################################################	3125	#############################################################################
		3126	# the server's init and main functions
2072		3127
2073	=head2 EXTENSION DATABASE SUPPORT	3128	sub load_facedata($) {
		3129	my ($path) = @_;
2074		3130
2075	Crossfire maintains a very simple database for extension use. It can	3131	# HACK to clear player env face cache, we need some signal framework
2076	currently store anything that can be serialised using Storable, which	3132	# for this (global event?)
2077	excludes objects.	3133	%ext::player_env::MUSIC_FACE_CACHE = ();
2078		3134
2079	The parameter C<$family> should best start with the name of the extension	3135	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2080	using it, it should be unique.
2081		3136
2082	=over 4	3137	warn "loading facedata from $path\n";
2083		3138
2084	=item $hashref = cf::db_get $family	3139	my $facedata;
		3140	0 < aio_load $path, $facedata
		3141	or die "$path: $!";
2085		3142
2086	Return a hashref for use by the extension C<$family>, which can be	3143	$facedata = Coro::Storable::thaw $facedata;
2087	modified. After modifications, you have to call C<cf::db_dirty> or
2088	C<cf::db_sync>.
2089		3144
2090	=item $value = cf::db_get $family => $key	3145	$facedata->{version} == 2
		3146	or cf::cleanup "$path: version mismatch, cannot proceed.";
2091		3147
2092	Returns a single value from the database	3148	# patch in the exptable
2093		3149	$facedata->{resource}{"res/exp_table"} = {
2094	=item cf::db_put $family => $hashref	3150	type => FT_RSRC,
2095		3151	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	});	3152	};
		3153	cf::cede_to_tick;
2145		3154
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}	3155	{
		3156	my $faces = $facedata->{faceinfo};
2150		3157
2151	sub db_get($;$) {	3158	while (my ($face, $info) = each %$faces) {
2152	@_ >= 2	3159	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2153	? $DB->{$_[0]}{$_[1]}
2154	: ($DB->{$_[0]} ||= { })
2155	}
2156		3160
2157	sub db_put($$;$) {	3161	cf::face::set_visibility $idx, $info->{visibility};
2158	if (@_ >= 3) {	3162	cf::face::set_magicmap $idx, $info->{magicmap};
2159	$DB->{$_[0]}{$_[1]} = $_[2];	3163	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2160	} else {	3164	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2161	$DB->{$_[0]} = $_[1];
2162	}
2163	db_dirty;
2164	}
2165		3165
2166	cf::global->attach (	3166	cf::cede_to_tick;
2167	prio => 10000,
2168	on_cleanup => sub {
2169	db_sync;
2170	},	3167	}
2171	);
2172	}
2173		3168
2174	#############################################################################	3169	while (my ($face, $info) = each %$faces) {
2175	# the server's main()	3170	next unless $info->{smooth};
2176		3171
2177	sub cfg_load {	3172	my $idx = cf::face::find $face
		3173	or next;
		3174
		3175	if (my $smooth = cf::face::find $info->{smooth}) {
		3176	cf::face::set_smooth $idx, $smooth;
		3177	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3178	} else {
		3179	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3180	}
		3181
		3182	cf::cede_to_tick;
		3183	}
		3184	}
		3185
		3186	{
		3187	my $anims = $facedata->{animinfo};
		3188
		3189	while (my ($anim, $info) = each %$anims) {
		3190	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3191	cf::cede_to_tick;
		3192	}
		3193
		3194	cf::anim::invalidate_all; # d'oh
		3195	}
		3196
		3197	{
		3198	# TODO: for gcfclient pleasure, we should give resources
		3199	# that gcfclient doesn't grok a >10000 face index.
		3200	my $res = $facedata->{resource};
		3201
		3202	while (my ($name, $info) = each %$res) {
		3203	if (defined $info->{type}) {
		3204	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3205	my $data;
		3206
		3207	if ($info->{type} & 1) {
		3208	# prepend meta info
		3209
		3210	my $meta = $enc->encode ({
		3211	name => $name,
		3212	%{ $info->{meta} || {} },
		3213	});
		3214
		3215	$data = pack "(w/a*)*", $meta, $info->{data};
		3216	} else {
		3217	$data = $info->{data};
		3218	}
		3219
		3220	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3221	cf::face::set_type $idx, $info->{type};
		3222	} else {
		3223	$RESOURCE{$name} = $info;
		3224	}
		3225
		3226	cf::cede_to_tick;
		3227	}
		3228	}
		3229
		3230	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3231
		3232	1
		3233	}
		3234
		3235	cf::global->attach (on_resource_update => sub {
		3236	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3237	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3238
		3239	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3240	my $sound = $soundconf->{compat}[$_]
		3241	or next;
		3242
		3243	my $face = cf::face::find "sound/$sound->[1]";
		3244	cf::sound::set $sound->[0] => $face;
		3245	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3246	}
		3247
		3248	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3249	my $face = cf::face::find "sound/$v";
		3250	cf::sound::set $k => $face;
		3251	}
		3252	}
		3253	});
		3254
		3255	register_exticmd fx_want => sub {
		3256	my ($ns, $want) = @_;
		3257
		3258	while (my ($k, $v) = each %$want) {
		3259	$ns->fx_want ($k, $v);
		3260	}
		3261	};
		3262
		3263	sub reload_regions {
		3264	# HACK to clear player env face cache, we need some signal framework
		3265	# for this (global event?)
		3266	%ext::player_env::MUSIC_FACE_CACHE = ();
		3267
		3268	load_resource_file "$MAPDIR/regions"
		3269	or die "unable to load regions file\n";
		3270
		3271	for (cf::region::list) {
		3272	$_->{match} = qr/$_->{match}/
		3273	if exists $_->{match};
		3274	}
		3275	}
		3276
		3277	sub reload_facedata {
		3278	load_facedata "$DATADIR/facedata"
		3279	or die "unable to load facedata\n";
		3280	}
		3281
		3282	sub reload_archetypes {
		3283	load_resource_file "$DATADIR/archetypes"
		3284	or die "unable to load archetypes\n";
		3285	#d# NEED to laod twice to resolve forward references
		3286	# this really needs to be done in an extra post-pass
		3287	# (which needs to be synchronous, so solve it differently)
		3288	load_resource_file "$DATADIR/archetypes"
		3289	or die "unable to load archetypes\n";
		3290	}
		3291
		3292	sub reload_treasures {
		3293	load_resource_file "$DATADIR/treasures"
		3294	or die "unable to load treasurelists\n";
		3295	}
		3296
		3297	sub reload_resources {
		3298	warn "reloading resource files...\n";
		3299
		3300	reload_regions;
		3301	reload_facedata;
		3302	#reload_archetypes;#d#
		3303	reload_archetypes;
		3304	reload_treasures;
		3305
		3306	warn "finished reloading resource files\n";
		3307	}
		3308
		3309	sub init {
		3310	reload_resources;
		3311	}
		3312
		3313	sub reload_config {
2178	open my $fh, "<:utf8", cf::confdir . "/config"	3314	open my $fh, "<:utf8", "$CONFDIR/config"
2179	or return;	3315	or return;
2180		3316
2181	local $/;	3317	local $/;
2182	*CFG = YAML::Syck::Load <$fh>;	3318	*CFG = YAML::Syck::Load <$fh>;
2183		3319
…		…
2197		3333
2198	sub main {	3334	sub main {
2199	# we must not ever block the main coroutine	3335	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	3336	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3337	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2202	async { Event::one_event };	3338	(async {
		3339	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3340	EV::loop EV::LOOP_ONESHOT;
		3341	})->prio (Coro::PRIO_MAX);
2203	};	3342	};
2204		3343
2205	cfg_load;	3344	reload_config;
2206	db_load;	3345	db_init;
2207	load_extensions;	3346	load_extensions;
		3347
		3348	$TICK_WATCHER->start;
		3349	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2208	Event::loop;	3350	EV::loop;
2209	}	3351	}
2210		3352
2211	#############################################################################	3353	#############################################################################
2212	# initialisation	3354	# initialisation and cleanup
2213		3355
		3356	# install some emergency cleanup handlers
		3357	BEGIN {
		3358	our %SIGWATCHER = ();
		3359	for my $signal (qw(INT HUP TERM)) {
		3360	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3361	cf::cleanup "SIG$signal";
		3362	};
		3363	}
		3364	}
		3365
		3366	sub write_runtime {
		3367	my $runtime = "$LOCALDIR/runtime";
		3368
		3369	# first touch the runtime file to show we are still running:
		3370	# the fsync below can take a very very long time.
		3371
		3372	IO::AIO::aio_utime $runtime, undef, undef;
		3373
		3374	my $guard = cf::lock_acquire "write_runtime";
		3375
		3376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3377	or return;
		3378
		3379	my $value = $cf::RUNTIME + 90 + 10;
		3380	# 10 is the runtime save interval, for a monotonic clock
		3381	# 60 allows for the watchdog to kill the server.
		3382
		3383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3384	and return;
		3385
		3386	# always fsync - this file is important
		3387	aio_fsync $fh
		3388	and return;
		3389
		3390	# touch it again to show we are up-to-date
		3391	aio_utime $fh, undef, undef;
		3392
		3393	close $fh
		3394	or return;
		3395
		3396	aio_rename "$runtime~", $runtime
		3397	and return;
		3398
		3399	warn "runtime file written.\n";
		3400
		3401	1
		3402	}
		3403
		3404	sub emergency_save() {
		3405	my $freeze_guard = cf::freeze_mainloop;
		3406
		3407	warn "enter emergency perl save\n";
		3408
		3409	cf::sync_job {
		3410	# use a peculiar iteration method to avoid tripping on perl
		3411	# refcount bugs in for. also avoids problems with players
		3412	# and maps saved/destroyed asynchronously.
		3413	warn "begin emergency player save\n";
		3414	for my $login (keys %cf::PLAYER) {
		3415	my $pl = $cf::PLAYER{$login} or next;
		3416	$pl->valid or next;
		3417	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3418	$pl->save;
		3419	}
		3420	warn "end emergency player save\n";
		3421
		3422	warn "begin emergency map save\n";
		3423	for my $path (keys %cf::MAP) {
		3424	my $map = $cf::MAP{$path} or next;
		3425	$map->valid or next;
		3426	$map->save;
		3427	}
		3428	warn "end emergency map save\n";
		3429
		3430	warn "begin emergency database checkpoint\n";
		3431	BDB::db_env_txn_checkpoint $DB_ENV;
		3432	warn "end emergency database checkpoint\n";
		3433	};
		3434
		3435	warn "leave emergency perl save\n";
		3436	}
		3437
		3438	sub post_cleanup {
		3439	my ($make_core) = @_;
		3440
		3441	warn Carp::longmess "post_cleanup backtrace"
		3442	if $make_core;
		3443	}
		3444
2214	sub reload() {	3445	sub do_reload_perl() {
2215	# can/must only be called in main	3446	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	3447	if ($Coro::current != $Coro::main) {
2217	warn "can only reload from main coroutine\n";	3448	warn "can only reload from main coroutine";
2218	return;	3449	return;
2219	}	3450	}
2220		3451
2221	warn "reloading...";	3452	warn "reloading...";
2222		3453
2223	my $guard = freeze_mainloop;	3454	warn "entering sync_job";
		3455
		3456	cf::sync_job {
		3457	cf::write_runtime; # external watchdog should not bark
2224	cf::emergency_save;	3458	cf::emergency_save;
		3459	cf::write_runtime; # external watchdog should not bark
2225		3460
2226	eval {	3461	warn "syncing database to disk";
		3462	BDB::db_env_txn_checkpoint $DB_ENV;
		3463
2227	# if anything goes wrong in here, we should simply crash as we already saved	3464	# if anything goes wrong in here, we should simply crash as we already saved
2228		3465
2229	# cancel all watchers	3466	warn "flushing outstanding aio requests";
2230	for (Event::all_watchers) {	3467	for (;;) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;	3468	BDB::flush;
		3469	IO::AIO::flush;
		3470	Coro::cede_notself;
		3471	last unless IO::AIO::nreqs || BDB::nreqs;
		3472	warn "iterate...";
2232	}	3473	}
2233		3474
		3475	++$RELOAD;
		3476
2234	# cancel all extension coros	3477	warn "cancelling all extension coros";
2235	$_->cancel for values %EXT_CORO;	3478	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	3479	%EXT_CORO = ();
2237		3480
2238	# unload all extensions	3481	warn "removing commands";
2239	for (@exts) {	3482	%COMMAND = ();
		3483
		3484	warn "removing ext/exti commands";
		3485	%EXTCMD = ();
		3486	%EXTICMD = ();
		3487
		3488	warn "unloading/nuking all extensions";
		3489	for my $pkg (@EXTS) {
2240	warn "unloading <$_>";	3490	warn "... unloading $pkg";
2241	unload_extension $_;	3491
		3492	if (my $cb = $pkg->can ("unload")) {
		3493	eval {
		3494	$cb->($pkg);
		3495	1
		3496	} or warn "$pkg unloaded, but with errors: $@";
2242	}	3497	}
2243		3498
		3499	warn "... nuking $pkg";
		3500	Symbol::delete_package $pkg;
		3501	}
		3502
2244	# unload all modules loaded from $LIBDIR	3503	warn "unloading all perl modules loaded from $LIBDIR";
2245	while (my ($k, $v) = each %INC) {	3504	while (my ($k, $v) = each %INC) {
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3505	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2247		3506
2248	warn "removing <$k>";	3507	warn "... unloading $k";
2249	delete $INC{$k};	3508	delete $INC{$k};
2250		3509
2251	$k =~ s/\.pm$//;	3510	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;	3511	$k =~ s/\//::/g;
2253		3512
…		…
2256	}	3515	}
2257		3516
2258	Symbol::delete_package $k;	3517	Symbol::delete_package $k;
2259	}	3518	}
2260		3519
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	3520	warn "getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	3521	Symbol::delete_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3522	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		3523
2269	# remove register_script_function callbacks
2270	# TODO
2271
2272	# unload cf.pm "a bit"	3524	warn "unloading cf.pm \"a bit\"";
2273	delete $INC{"cf.pm"};	3525	delete $INC{"cf.pm"};
		3526	delete $INC{"cf/pod.pm"};
2274		3527
2275	# don't, removes xs symbols, too,	3528	# don't, removes xs symbols, too,
2276	# and global variables created in xs	3529	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	3530	#Symbol::delete_package __PACKAGE__;
2278		3531
2279	# reload cf.pm	3532	warn "unload completed, starting to reload now";
		3533
2280	warn "reloading cf.pm";	3534	warn "reloading cf.pm";
2281	require cf;	3535	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3536	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2283		3537
2284	# load config and database again	3538	warn "loading config and database again";
2285	cf::cfg_load;	3539	cf::reload_config;
2286	cf::db_load;
2287		3540
2288	# load extensions
2289	warn "load extensions";	3541	warn "loading extensions";
2290	cf::load_extensions;	3542	cf::load_extensions;
2291		3543
2292	# reattach attachments to objects	3544	warn "reattaching attachments to objects/players";
2293	warn "reattach";	3545	_global_reattach; # objects, sockets
2294	_global_reattach;	3546	warn "reattaching attachments to maps";
2295	reattach $_ for values %MAP;	3547	reattach $_ for values %MAP;
2296	};	3548	warn "reattaching attachments to players";
		3549	reattach $_ for values %PLAYER;
2297		3550
2298	if ($@) {	3551	warn "leaving sync_job";
		3552
		3553	1
		3554	} or do {
2299	warn $@;	3555	warn $@;
2300	warn "error while reloading, exiting.";	3556	warn "error while reloading, exiting.";
2301	exit 1;	3557	exit 1;
2302	}	3558	};
2303		3559
2304	warn "reloaded successfully";	3560	warn "reloaded";
2305	};	3561	};
2306		3562
2307	#############################################################################	3563	our $RELOAD_WATCHER; # used only during reload
2308		3564
2309	unless ($LINK_MAP) {	3565	sub reload_perl() {
2310	$LINK_MAP = cf::map::new;	3566	# doing reload synchronously and two reloads happen back-to-back,
		3567	# coro crashes during coro_state_free->destroy here.
2311		3568
2312	$LINK_MAP->width (41);	3569	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2313	$LINK_MAP->height (41);	3570	undef $RELOAD_WATCHER;
2314	$LINK_MAP->alloc;	3571	do_reload_perl;
2315	$LINK_MAP->path ("{link}");	3572	};
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	}	3573	}
2349
2350	register "<global>", __PACKAGE__;
2351		3574
2352	register_command "reload" => sub {	3575	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	3576	my ($who, $arg) = @_;
2354		3577
2355	if ($who->flag (FLAG_WIZ)) {	3578	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	3579	$who->message ("reloading server.");
		3580	async {
		3581	$Coro::current->{desc} = "perl_reload";
		3582	reload_perl;
		3583	};
2359	}	3584	}
2360	};	3585	};
2361		3586
2362	unshift @INC, $LIBDIR;	3587	unshift @INC, $LIBDIR;
2363		3588
2364	$TICK_WATCHER = Event->timer (	3589	my $bug_warning = 0;
2365	reentrant => 0,	3590
2366	prio => 0,	3591	our @WAIT_FOR_TICK;
2367	at => $NEXT_TICK || $TICK,	3592	our @WAIT_FOR_TICK_BEGIN;
2368	data => WF_AUTOCANCEL,	3593
2369	cb => sub {	3594	sub wait_for_tick {
		3595	return unless $TICK_WATCHER->is_active;
		3596	return if $Coro::current == $Coro::main;
		3597
		3598	my $signal = new Coro::Signal;
		3599	push @WAIT_FOR_TICK, $signal;
		3600	$signal->wait;
		3601	}
		3602
		3603	sub wait_for_tick_begin {
		3604	return unless $TICK_WATCHER->is_active;
		3605	return if $Coro::current == $Coro::main;
		3606
		3607	my $signal = new Coro::Signal;
		3608	push @WAIT_FOR_TICK_BEGIN, $signal;
		3609	$signal->wait;
		3610	}
		3611
		3612	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3613	if ($Coro::current != $Coro::main) {
		3614	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3615	unless ++$bug_warning > 10;
		3616	return;
		3617	}
		3618
		3619	$NOW = $tick_start = EV::now;
		3620
2370	cf::server_tick; # one server iteration	3621	cf::server_tick; # one server iteration
		3622
2371	$RUNTIME += $TICK;	3623	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;	3624	$NEXT_TICK = $_[0]->at;
2373		3625
2374	# if we are delayed by four ticks or more, skip them all	3626	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3627	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2376		3628	Coro::async_pool {
2377	$TICK_WATCHER->at ($NEXT_TICK);	3629	$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	3630	write_runtime
2399	or warn "ERROR: unable to write runtime file: $!";	3631	or warn "ERROR: unable to write runtime file: $!";
2400	})->();	3632	};
2401	},	3633	}
2402	);	3634
		3635	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3636	$sig->send;
		3637	}
		3638	while (my $sig = shift @WAIT_FOR_TICK) {
		3639	$sig->send;
		3640	}
		3641
		3642	$LOAD = ($NOW - $tick_start) / $TICK;
		3643	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3644
		3645	_post_tick;
		3646	};
		3647	$TICK_WATCHER->priority (EV::MAXPRI);
		3648
		3649	{
		3650	# configure BDB
		3651
		3652	BDB::min_parallel 8;
		3653	BDB::max_poll_reqs $TICK * 0.1;
		3654	$Coro::BDB::WATCHER->priority (1);
		3655
		3656	unless ($DB_ENV) {
		3657	$DB_ENV = BDB::db_env_create;
		3658	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3659	| BDB::LOG_AUTOREMOVE, 1);
		3660	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3661	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3662
		3663	cf::sync_job {
		3664	eval {
		3665	BDB::db_env_open
		3666	$DB_ENV,
		3667	$BDBDIR,
		3668	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3669	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3670	0666;
		3671
		3672	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3673	};
		3674
		3675	cf::cleanup "db_env_open(db): $@" if $@;
		3676	};
		3677	}
		3678
		3679	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3680	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3681	};
		3682	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3683	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3684	};
		3685	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3686	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3687	};
		3688	}
		3689
		3690	{
		3691	# configure IO::AIO
		3692
		3693	IO::AIO::min_parallel 8;
		3694	IO::AIO::max_poll_time $TICK * 0.1;
		3695	$Coro::AIO::WATCHER->priority (1);
		3696	}
		3697
		3698	my $_log_backtrace;
		3699
		3700	sub _log_backtrace {
		3701	my ($msg, @addr) = @_;
		3702
		3703	$msg =~ s/\n//;
		3704
		3705	# limit the # of concurrent backtraces
		3706	if ($_log_backtrace < 2) {
		3707	++$_log_backtrace;
		3708	async {
		3709	$Coro::current->{desc} = "abt $msg";
		3710
		3711	my @bt = fork_call {
		3712	@addr = map { sprintf "%x", $_ } @addr;
		3713	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3714	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3715	or die "addr2line: $!";
		3716
		3717	my @funcs;
		3718	my @res = <$fh>;
		3719	chomp for @res;
		3720	while (@res) {
		3721	my ($func, $line) = splice @res, 0, 2, ();
		3722	push @funcs, "[$func] $line";
		3723	}
		3724
		3725	@funcs
		3726	};
		3727
		3728	LOG llevInfo, "[ABT] $msg\n";
		3729	LOG llevInfo, "[ABT] $_\n" for @bt;
		3730	--$_log_backtrace;
		3731	};
		3732	} else {
		3733	LOG llevInfo, "[ABT] $msg\n";
		3734	LOG llevInfo, "[ABT] [suppressed]\n";
		3735	}
		3736	}
		3737
		3738	# load additional modules
		3739	use cf::pod;
2403		3740
2404	END { cf::emergency_save }	3741	END { cf::emergency_save }
2405		3742
2406	1	3743	1
2407		3744

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