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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.198 by root, Sun Jan 28 01:58:37 2007 UTC vs.
Revision 1.409 by root, Mon Jan 14 11:41:48 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 3.5 ();	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;
		32	use YAML ();
23	use IO::AIO 2.32 ();	33	use IO::AIO 2.51 ();
24	use YAML::Syck ();
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
		43
		44	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
28		45
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	46	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		47
36	our %COMMAND = ();	48	our %COMMAND = ();
37	our %COMMAND_TIME = ();	49	our %COMMAND_TIME = ();
38		50
39	our @EXTS = (); # list of extension package names	51	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	52	our %EXTCMD = ();
		53	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
43		56
		57	our $RELOAD; # number of reloads so far
44	our @EVENT;	58	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		59
47	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71	our %RESOURCE;
		72
		73	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	74	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	75	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	77	our $NEXT_TICK;
52	our $NOW;	78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $BDB_DEADLOCK_WATCHER;
		82	our $BDB_CHECKPOINT_WATCHER;
		83	our $BDB_TRICKLE_WATCHER;
		84	our $DB_ENV;
53		85
54	our %CFG;	86	our %CFG;
55		87
56	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	89	our $RUNTIME;
		90	our $NOW;
58		91
59	our %PLAYER; # all users	92	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	93	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	94	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		95
67	# used to convert map paths into valid unix filenames by replacing / by ∕	96	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
		102
70	binmode STDOUT;	103	binmode STDOUT;
71	binmode STDERR;	104	binmode STDERR;
72		105
73	# read virtual server time, if available	106	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
78	}	111	}
79		112
80	mkdir cf::localdir;	113	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		115
86	our $EMERGENCY_POSITION;	116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
87		119
88	#############################################################################	120	#############################################################################
89		121
90	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
91		123
…		…
98	=item $cf::RUNTIME	130	=item $cf::RUNTIME
99		131
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	133	every server tick.
102		134
103	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		138
105	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
107		143
108	=item $cf::NOW	144	=item $cf::NOW
109		145
110	The time of the last (current) server tick.	146	The time of the last (current) server tick.
111		147
112	=item $cf::TICK	148	=item $cf::TICK
113		149
114	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
115		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
		161
116	=item %cf::CFG	162	=item %cf::CFG
117		163
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	165	from wherever your confdir points to.
120		166
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	167	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		168
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	170	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
127		178
128	=back	179	=back
129		180
130	=cut	181	=cut
131		182
132	BEGIN {	183	BEGIN {
133	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	185	my $msg = join "", @_;
135	utf8::encode $msg;
136		186
137	$msg .= "\n"	187	$msg .= "\n"
138	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
139		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
140	LOG llevError, $msg;	192	LOG llevError, $msg;
141	};	193	};
142	}	194	}
		195
		196	$Coro::State::DIEHOOK = sub {
		197	warn Carp::longmess $_[0];
		198	Coro::terminate;
		199	};
143		200
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	201	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	202	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	203	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	204	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	205	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		206	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	207	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		208
151	# we bless all objects into (empty) derived classes to force a method lookup	209	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	210	# within the Safe compartment.
153	for my $pkg (qw(	211	for my $pkg (qw(
154	cf::global cf::attachable	212	cf::global cf::attachable
…		…
159	)) {	217	)) {
160	no strict 'refs';	218	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	219	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	220	}
163		221
164	$Event::DIED = sub {	222	$EV::DIED = sub {
165	warn "error in event callback: @_";	223	warn "error in event callback: @_";
166	};	224	};
		225
		226	#############################################################################
167		227
168	=head2 UTILITY FUNCTIONS	228	=head2 UTILITY FUNCTIONS
169		229
170	=over 4	230	=over 4
171		231
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	250	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	251	$d
192	} || "[unable to dump $_[0]: '$@']";	252	} || "[unable to dump $_[0]: '$@']";
193	}	253	}
194		254
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	255	=item $ref = cf::decode_json $json
198		256
199	Converts a JSON string into the corresponding perl data structure.	257	Converts a JSON string into the corresponding perl data structure.
200		258
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	259	=item $json = cf::encode_json $ref
209		260
210	Converts a perl data structure into its JSON representation.	261	Converts a perl data structure into its JSON representation.
211		262
212	=cut	263	=cut
213		264
214	sub to_json($) {	265	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	266
216	JSON::Syck::Dump $_[0]	267	sub encode_json($) { $json_coder->encode ($_[0]) }
217	}	268	sub decode_json($) { $json_coder->decode ($_[0]) }
218		269
219	=item cf::lock_wait $string	270	=item cf::lock_wait $string
220		271
221	Wait until the given lock is available. See cf::lock_acquire.	272	Wait until the given lock is available. See cf::lock_acquire.
222		273
…		…
225	Wait until the given lock is available and then acquires it and returns	276	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	277	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	278	for example when the coroutine gets canceled), the lock is automatically
228	returned.	279	returned.
229		280
		281	Locks are *not* recursive, locking from the same coro twice results in a
		282	deadlocked coro.
		283
230	Lock names should begin with a unique identifier (for example, cf::map::find	284	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	285	uses map_find and cf::map::load uses map_load).
232		286
		287	=item $locked = cf::lock_active $string
		288
		289	Return true if the lock is currently active, i.e. somebody has locked it.
		290
233	=cut	291	=cut
234		292
235	our %LOCK;	293	our %LOCK;
		294	our %LOCKER;#d#
236		295
237	sub lock_wait($) {	296	sub lock_wait($) {
238	my ($key) = @_;	297	my ($key) = @_;
		298
		299	if ($LOCKER{$key} == $Coro::current) {#d#
		300	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		301	return;#d#
		302	}#d#
239		303
240	# wait for lock, if any	304	# wait for lock, if any
241	while ($LOCK{$key}) {	305	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;	306	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;	307	Coro::schedule;
…		…
249		313
250	# wait, to be sure we are not locked	314	# wait, to be sure we are not locked
251	lock_wait $key;	315	lock_wait $key;
252		316
253	$LOCK{$key} = [];	317	$LOCK{$key} = [];
		318	$LOCKER{$key} = $Coro::current;#d#
254		319
255	Coro::guard {	320	Coro::guard {
		321	delete $LOCKER{$key};#d#
256	# wake up all waiters, to be on the safe side	322	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	323	$_->ready for @{ delete $LOCK{$key} };
258	}	324	}
259	}	325	}
260		326
		327	sub lock_active($) {
		328	my ($key) = @_;
		329
		330	! ! $LOCK{$key}
		331	}
		332
261	sub freeze_mainloop {	333	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	334	return unless $TICK_WATCHER->is_active;
263		335
264	my $guard = Coro::guard {	336	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	337	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	338	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	339	$TICK_WATCHER->stop;
270	$guard	340	$guard
		341	}
		342
		343	=item cf::periodic $interval, $cb
		344
		345	Like EV::periodic, but randomly selects a starting point so that the actions
		346	get spread over timer.
		347
		348	=cut
		349
		350	sub periodic($$) {
		351	my ($interval, $cb) = @_;
		352
		353	my $start = rand List::Util::min 180, $interval;
		354
		355	EV::periodic $start, $interval, 0, $cb
		356	}
		357
		358	=item cf::get_slot $time[, $priority[, $name]]
		359
		360	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		361	This call blocks and returns only when you have at least C<$time> seconds
		362	of cpu time till the next tick. The slot is only valid till the next cede.
		363
		364	The optional C<$name> can be used to identify the job to run. It might be
		365	used for statistical purposes and should identify the same time-class.
		366
		367	Useful for short background jobs.
		368
		369	=cut
		370
		371	our @SLOT_QUEUE;
		372	our $SLOT_QUEUE;
		373
		374	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		375	$SLOT_QUEUE = Coro::async {
		376	$Coro::current->desc ("timeslot manager");
		377
		378	my $signal = new Coro::Signal;
		379
		380	while () {
		381	next_job:
		382	my $avail = cf::till_tick;
		383	if ($avail > 0.01) {
		384	for (0 .. $#SLOT_QUEUE) {
		385	if ($SLOT_QUEUE[$_][0] < $avail) {
		386	my $job = splice @SLOT_QUEUE, $_, 1, ();
		387	$job->[2]->send;
		388	Coro::cede;
		389	goto next_job;
		390	}
		391	}
		392	}
		393
		394	if (@SLOT_QUEUE) {
		395	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		396	push @cf::WAIT_FOR_TICK, $signal;
		397	$signal->wait;
		398	} else {
		399	Coro::schedule;
		400	}
		401	}
		402	};
		403
		404	sub get_slot($;$$) {
		405	my ($time, $pri, $name) = @_;
		406
		407	$time = $TICK * .6 if $time > $TICK * .6;
		408	my $sig = new Coro::Signal;
		409
		410	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		411	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		412	$SLOT_QUEUE->ready;
		413	$sig->wait;
271	}	414	}
272		415
273	=item cf::async { BLOCK }	416	=item cf::async { BLOCK }
274		417
275	Currently the same as Coro::async_pool, meaning you cannot use	418	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		423
281	BEGIN { *async = \&Coro::async_pool }	424	BEGIN { *async = \&Coro::async_pool }
282		425
283	=item cf::sync_job { BLOCK }	426	=item cf::sync_job { BLOCK }
284		427
285	The design of crossfire+ requires that the main coro ($Coro::main) is	428	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	429	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	430	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		431	acceptable.
288		432
289	If it must be done, put the blocking parts into C<sync_job>. This will run	433	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	434	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	435	server will be frozen during this time, so the block should either finish
292	fast or be very important.	436	fast or be very important.
…		…
295		439
296	sub sync_job(&) {	440	sub sync_job(&) {
297	my ($job) = @_;	441	my ($job) = @_;
298		442
299	if ($Coro::current == $Coro::main) {	443	if ($Coro::current == $Coro::main) {
		444	my $time = EV::time;
		445
300	# this is the main coro, too bad, we have to block	446	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	447	# till the operation succeeds, freezing the server :/
302		448
		449	LOG llevError, Carp::longmess "sync job";#d#
		450
303	# TODO: use suspend/resume instead	451	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	452	# (but this is cancel-safe)
305	my $freeze_guard = freeze_mainloop;	453	my $freeze_guard = freeze_mainloop;
306		454
307	my $busy = 1;	455	my $busy = 1;
308	my @res;	456	my @res;
309		457
310	(async {	458	(async {
		459	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	460	@res = eval { $job->() };
312	warn $@ if $@;	461	warn $@ if $@;
313	undef $busy;	462	undef $busy;
314	})->prio (Coro::PRIO_MAX);	463	})->prio (Coro::PRIO_MAX);
315		464
316	while ($busy) {	465	while ($busy) {
317	Coro::cede or Event::one_event;	466	if (Coro::nready) {
		467	Coro::cede_notself;
		468	} else {
		469	EV::loop EV::LOOP_ONESHOT;
318	}	470	}
		471	}
		472
		473	$time = EV::time - $time;
		474
		475	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		476	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		477
		478	$tick_start += $time; # do not account sync jobs to server load
319		479
320	wantarray ? @res : $res[0]	480	wantarray ? @res : $res[0]
321	} else {	481	} else {
322	# we are in another coroutine, how wonderful, everything just works	482	# we are in another coroutine, how wonderful, everything just works
323		483
…		…
343	$EXT_CORO{$coro+0} = $coro;	503	$EXT_CORO{$coro+0} = $coro;
344		504
345	$coro	505	$coro
346	}	506	}
347		507
348	sub write_runtime {	508	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		509
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	510	Executes the given code block with the given arguments in a seperate
352	or return;	511	process, returning the results. Everything must be serialisable with
		512	Coro::Storable. May, of course, block. Note that the executed sub may
		513	never block itself or use any form of event handling.
353		514
354	my $value = $cf::RUNTIME + 90 + 10;	515	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		516
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	517	sub fork_call(&@) {
359	and return;	518	my ($cb, @args) = @_;
360		519
361	aio_fsync $fh	520	# we seemingly have to make a local copy of the whole thing,
362	and return;	521	# otherwise perl prematurely frees the stuff :/
		522	# TODO: investigate and fix (likely this will be rather laborious)
363		523
364	close $fh	524	my @res = Coro::Util::fork_eval {
365	or return;	525	reset_signals;
		526	&$cb
		527	}, @args;
366		528
367	aio_rename "$runtime~", $runtime	529	wantarray ? @res : $res[-1]
368	and return;	530	}
369		531
		532	=item $value = cf::db_get $family => $key
		533
		534	Returns a single value from the environment database.
		535
		536	=item cf::db_put $family => $key => $value
		537
		538	Stores the given C<$value> in the family. It can currently store binary
		539	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		540
		541	=item $db = cf::db_table "name"
		542
		543	Create and/or open a new database table. The string must not be "db" and must be unique
		544	within each server.
		545
		546	=cut
		547
		548	sub db_table($) {
		549	my ($name) = @_;
		550	my $db = BDB::db_create $DB_ENV;
		551
		552	eval {
		553	$db->set_flags (BDB::CHKSUM);
		554
		555	utf8::encode $name;
		556	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		557	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		558	cf::cleanup "db_open(db): $!" if $!;
		559	};
		560	cf::cleanup "db_open(db): $@" if $@;
		561
		562	$db
		563	}
		564
		565	our $DB;
		566
		567	sub db_init {
		568	cf::sync_job {
		569	$DB ||= db_table "db";
		570	};
		571	}
		572
		573	sub db_get($$) {
		574	my $key = "$_[0]/$_[1]";
		575
		576	cf::sync_job {
		577	BDB::db_get $DB, undef, $key, my $data;
		578
		579	$! ? ()
		580	: $data
370	1	581	}
		582	}
		583
		584	sub db_put($$$) {
		585	BDB::dbreq_pri 4;
		586	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		587	}
		588
		589	=item cf::cache $id => [$paths...], $processversion => $process
		590
		591	Generic caching function that returns the value of the resource $id,
		592	caching and regenerating as required.
		593
		594	This function can block.
		595
		596	=cut
		597
		598	sub cache {
		599	my ($id, $src, $processversion, $process) = @_;
		600
		601	my $meta =
		602	join "\x00",
		603	$processversion,
		604	map {
		605	aio_stat $_
		606	and Carp::croak "$_: $!";
		607
		608	($_, (stat _)[7,9])
		609	} @$src;
		610
		611	my $dbmeta = db_get cache => "$id/meta";
		612	if ($dbmeta ne $meta) {
		613	# changed, we may need to process
		614
		615	my @data;
		616	my $md5;
		617
		618	for (0 .. $#$src) {
		619	0 <= aio_load $src->[$_], $data[$_]
		620	or Carp::croak "$src->[$_]: $!";
		621	}
		622
		623	# if processing is expensive, check
		624	# checksum first
		625	if (1) {
		626	$md5 =
		627	join "\x00",
		628	$processversion,
		629	map {
		630	cf::cede_to_tick;
		631	($src->[$_], Digest::MD5::md5_hex $data[$_])
		632	} 0.. $#$src;
		633
		634
		635	my $dbmd5 = db_get cache => "$id/md5";
		636	if ($dbmd5 eq $md5) {
		637	db_put cache => "$id/meta", $meta;
		638
		639	return db_get cache => "$id/data";
		640	}
		641	}
		642
		643	my $t1 = Time::HiRes::time;
		644	my $data = $process->(\@data);
		645	my $t2 = Time::HiRes::time;
		646
		647	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		648
		649	db_put cache => "$id/data", $data;
		650	db_put cache => "$id/md5" , $md5;
		651	db_put cache => "$id/meta", $meta;
		652
		653	return $data;
		654	}
		655
		656	db_get cache => "$id/data"
		657	}
		658
		659	=item cf::datalog type => key => value, ...
		660
		661	Log a datalog packet of the given type with the given key-value pairs.
		662
		663	=cut
		664
		665	sub datalog($@) {
		666	my ($type, %kv) = @_;
		667	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	668	}
372		669
373	=back	670	=back
374		671
375	=cut	672	=cut
…		…
382	attach callbacks/event handlers (a collection of which is called an "attachment")	679	attach callbacks/event handlers (a collection of which is called an "attachment")
383	to it. All such attachable objects support the following methods.	680	to it. All such attachable objects support the following methods.
384		681
385	In the following description, CLASS can be any of C<global>, C<object>	682	In the following description, CLASS can be any of C<global>, C<object>
386	C<player>, C<client> or C<map> (i.e. the attachable objects in	683	C<player>, C<client> or C<map> (i.e. the attachable objects in
387	crossfire+).	684	Deliantra).
388		685
389	=over 4	686	=over 4
390		687
391	=item $attachable->attach ($attachment, key => $value...)	688	=item $attachable->attach ($attachment, key => $value...)
392		689
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	852	$registry = $CB_TYPE[$object_type] ||= [];
556		853
557	} elsif ($type eq "subtype") {	854	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	855	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	856	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	857	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		858
562	} elsif ($type eq "package") {	859	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	860	my $pkg = shift @arg;
564		861
565	while (my ($name, $id) = each %cb_id) {	862	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	891	_attach $registry, $klass, @attach;
595	}	892	}
596		893
597	$obj->{$name} = \%arg;	894	$obj->{$name} = \%arg;
598	} else {	895	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	896	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	897	}
601		898
602	$obj->{_attachment}{$name} = undef;	899	$obj->{_attachment}{$name} = undef;
603	}	900	}
604		901
…		…
606	if (ref $_[0]) {	903	if (ref $_[0]) {
607	_object_attach @_;	904	_object_attach @_;
608	} else {	905	} else {
609	_attach shift->_attach_registry, @_;	906	_attach shift->_attach_registry, @_;
610	}	907	}
		908	_recalc_want;
611	};	909	};
612		910
613	# all those should be optimised	911	# all those should be optimised
614	sub cf::attachable::detach {	912	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	913	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	916	delete $obj->{_attachment}{$name};
619	reattach ($obj);	917	reattach ($obj);
620	} else {	918	} else {
621	Carp::croak "cannot, currently, detach class attachments";	919	Carp::croak "cannot, currently, detach class attachments";
622	}	920	}
		921	_recalc_want;
623	};	922	};
624		923
625	sub cf::attachable::attached {	924	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	925	my ($obj, $name) = @_;
627		926
…		…
642	";	941	";
643	die if $@;	942	die if $@;
644	}	943	}
645		944
646	our $override;	945	our $override;
647	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	946	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
648		947
649	sub override {	948	sub override {
650	$override = 1;	949	$override = 1;
651	@invoke_results = ();	950	@INVOKE_RESULTS = (@_);
652	}	951	}
653		952
654	sub do_invoke {	953	sub do_invoke {
655	my $event = shift;	954	my $event = shift;
656	my $callbacks = shift;	955	my $callbacks = shift;
657		956
658	@invoke_results = ();	957	@INVOKE_RESULTS = ();
659		958
660	local $override;	959	local $override;
661		960
662	for (@$callbacks) {	961	for (@$callbacks) {
663	eval { &{$_->[1]} };	962	eval { &{$_->[1]} };
…		…
672	}	971	}
673		972
674	0	973	0
675	}	974	}
676		975
677	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	976	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
678		977
679	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	978	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
680		979
681	Generate an object-specific event with the given arguments.	980	Generate an object-specific event with the given arguments.
682		981
683	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	982	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
684	removed in future versions), and there is no public API to access override	983	removed in future versions), and there is no public API to access override
685	results (if you must, access C<@cf::invoke_results> directly).	984	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
686		985
687	=back	986	=back
688		987
689	=cut	988	=cut
690		989
691	#############################################################################	990	#############################################################################
692	# object support	991	# object support
		992
		993	sub _object_equal($$);
		994	sub _object_equal($$) {
		995	my ($a, $b) = @_;
		996
		997	return 0 unless (ref $a) eq (ref $b);
		998
		999	if ("HASH" eq ref $a) {
		1000	my @ka = keys %$a;
		1001	my @kb = keys %$b;
		1002
		1003	return 0 if @ka != @kb;
		1004
		1005	for (0 .. $#ka) {
		1006	return 0 unless $ka[$_] eq $kb[$_];
		1007	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1008	}
		1009
		1010	} elsif ("ARRAY" eq ref $a) {
		1011
		1012	return 0 if @$a != @$b;
		1013
		1014	for (0 .. $#$a) {
		1015	return 0 unless _object_equal $a->[$_], $b->[$_];
		1016	}
		1017
		1018	} elsif ($a ne $b) {
		1019	return 0;
		1020	}
		1021
		1022	1
		1023	}
		1024
		1025	our $SLOW_MERGES;#d#
		1026	sub _can_merge {
		1027	my ($ob1, $ob2) = @_;
		1028
		1029	++$SLOW_MERGES;#d#
		1030
		1031	# we do the slow way here
		1032	return _object_equal $ob1, $ob2
		1033	}
693		1034
694	sub reattach {	1035	sub reattach {
695	# basically do the same as instantiate, without calling instantiate	1036	# basically do the same as instantiate, without calling instantiate
696	my ($obj) = @_;	1037	my ($obj) = @_;
697		1038
…		…
718	cf::attachable->attach (	1059	cf::attachable->attach (
719	prio => -1000000,	1060	prio => -1000000,
720	on_instantiate => sub {	1061	on_instantiate => sub {
721	my ($obj, $data) = @_;	1062	my ($obj, $data) = @_;
722		1063
723	$data = from_json $data;	1064	$data = decode_json $data;
724		1065
725	for (@$data) {	1066	for (@$data) {
726	my ($name, $args) = @$_;	1067	my ($name, $args) = @$_;
727		1068
728	$obj->attach ($name, %{$args || {} });	1069	$obj->attach ($name, %{$args || {} });
…		…
744	sub object_freezer_save {	1085	sub object_freezer_save {
745	my ($filename, $rdata, $objs) = @_;	1086	my ($filename, $rdata, $objs) = @_;
746		1087
747	sync_job {	1088	sync_job {
748	if (length $$rdata) {	1089	if (length $$rdata) {
		1090	utf8::decode (my $decname = $filename);
749	warn sprintf "saving %s (%d,%d)\n",	1091	warn sprintf "saving %s (%d,%d)\n",
750	$filename, length $$rdata, scalar @$objs;	1092	$decname, length $$rdata, scalar @$objs;
751		1093
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1094	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	1095	chmod SAVE_MODE, $fh;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1096	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755	aio_fsync $fh;	1097	aio_fsync $fh if $cf::USE_FSYNC;
756	close $fh;	1098	close $fh;
757		1099
758	if (@$objs) {	1100	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1101	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	1102	chmod SAVE_MODE, $fh;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	1103	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	1104	aio_write $fh, 0, (length $data), $data, 0;
763	aio_fsync $fh;	1105	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	1106	close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	1107	aio_rename "$filename.pst~", "$filename.pst";
766	}	1108	}
767	} else {	1109	} else {
768	aio_unlink "$filename.pst";	1110	aio_unlink "$filename.pst";
…		…
774	}	1116	}
775	} else {	1117	} else {
776	aio_unlink $filename;	1118	aio_unlink $filename;
777	aio_unlink "$filename.pst";	1119	aio_unlink "$filename.pst";
778	}	1120	}
779	}	1121	};
780	}	1122	}
781		1123
782	sub object_freezer_as_string {	1124	sub object_freezer_as_string {
783	my ($rdata, $objs) = @_;	1125	my ($rdata, $objs) = @_;
784		1126
…		…
796	or return;	1138	or return;
797		1139
798	unless (aio_stat "$filename.pst") {	1140	unless (aio_stat "$filename.pst") {
799	(aio_load "$filename.pst", $av) >= 0	1141	(aio_load "$filename.pst", $av) >= 0
800	or return;	1142	or return;
		1143
801	$av = eval { (Storable::thaw $av)->{objs} };	1144	my $st = eval { Coro::Storable::thaw $av };
		1145	$av = $st->{objs};
802	}	1146	}
803		1147
		1148	utf8::decode (my $decname = $filename);
804	warn sprintf "loading %s (%d)\n",	1149	warn sprintf "loading %s (%d,%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1150	$decname, length $data, scalar @{$av || []};
		1151
806	return ($data, $av);	1152	($data, $av)
807	}	1153	}
		1154
		1155	=head2 COMMAND CALLBACKS
		1156
		1157	=over 4
		1158
		1159	=cut
808		1160
809	#############################################################################	1161	#############################################################################
810	# command handling &c	1162	# command handling &c
811		1163
812	=item cf::register_command $name => \&callback($ob,$args);	1164	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1177	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1178	}
827		1179
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1180	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1181
830	Register a callbackf ro execution when the client sends an extcmd packet.	1182	Register a callback for execution when the client sends an (synchronous)
		1183	extcmd packet. Ext commands will be processed in the order they are
		1184	received by the server, like other user commands. The first argument is
		1185	the logged-in player. Ext commands can only be processed after a player
		1186	has logged in successfully.
831		1187
832	If the callback returns something, it is sent back as if reply was being	1188	If the callback returns something, it is sent back as if reply was being
833	called.	1189	called.
834		1190
		1191	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1192
		1193	Register a callback for execution when the client sends an (asynchronous)
		1194	exticmd packet. Exti commands are processed by the server as soon as they
		1195	are received, i.e. out of order w.r.t. other commands. The first argument
		1196	is a client socket. Exti commands can be received anytime, even before
		1197	log-in.
		1198
		1199	If the callback returns something, it is sent back as if reply was being
		1200	called.
		1201
835	=cut	1202	=cut
836		1203
837	sub register_extcmd {	1204	sub register_extcmd {
838	my ($name, $cb) = @_;	1205	my ($name, $cb) = @_;
839		1206
840	$EXTCMD{$name} = $cb;	1207	$EXTCMD{$name} = $cb;
		1208	}
		1209
		1210	sub register_exticmd {
		1211	my ($name, $cb) = @_;
		1212
		1213	$EXTICMD{$name} = $cb;
841	}	1214	}
842		1215
843	cf::player->attach (	1216	cf::player->attach (
844	on_command => sub {	1217	on_command => sub {
845	my ($pl, $name, $params) = @_;	1218	my ($pl, $name, $params) = @_;
…		…
854	cf::override;	1227	cf::override;
855	},	1228	},
856	on_extcmd => sub {	1229	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1230	my ($pl, $buf) = @_;
858		1231
859	my $msg = eval { from_json $buf };	1232	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1233
861	if (ref $msg) {	1234	if (ref $msg) {
		1235	my ($type, $reply, @payload) =
		1236	"ARRAY" eq ref $msg
		1237	? @$msg
		1238	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1239
		1240	my @reply;
		1241
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1242	if (my $cb = $EXTCMD{$type}) {
863	if (my %reply = $cb->($pl, $msg)) {	1243	@reply = $cb->($pl, @payload);
864	$pl->ext_reply ($msg->{msgid}, %reply);
865	}
866	}	1244	}
		1245
		1246	$pl->ext_reply ($reply, @reply)
		1247	if $reply;
		1248
867	} else {	1249	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1250	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
869	}	1251	}
870		1252
871	cf::override;	1253	cf::override;
872	},	1254	},
873	);	1255	);
874		1256
875	sub load_extension {
876	my ($path) = @_;
877
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
879	my $base = $1;
880	my $pkg = $1;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}
903	die $@;
904	}
905
906	push @EXTS, $pkg;
907	}
908
909	sub load_extensions {	1257	sub load_extensions {
		1258	cf::sync_job {
		1259	my %todo;
		1260
910	for my $ext (<$LIBDIR/*.ext>) {	1261	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1262	next unless -r $path;
912	eval {	1263
913	load_extension $ext;	1264	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1265	my $base = $1;
		1266	my $pkg = $1;
		1267	$pkg =~ s/[^[:word:]]/_/g;
		1268	$pkg = "ext::$pkg";
		1269
		1270	open my $fh, "<:utf8", $path
		1271	or die "$path: $!";
		1272
		1273	my $source = do { local $/; <$fh> };
		1274
		1275	my %ext = (
		1276	path => $path,
		1277	base => $base,
		1278	pkg => $pkg,
		1279	);
		1280
		1281	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1282	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1283
		1284	$ext{source} =
		1285	"package $pkg; use strict; use utf8;\n"
		1286	. "#line 1 \"$path\"\n{\n"
		1287	. $source
		1288	. "\n};\n1";
		1289
		1290	$todo{$base} = \%ext;
		1291	}
		1292
		1293	my %done;
		1294	while (%todo) {
		1295	my $progress;
		1296
		1297	while (my ($k, $v) = each %todo) {
		1298	for (split /,\s*/, $v->{meta}{depends}) {
		1299	goto skip
		1300	unless exists $done{$_};
		1301	}
		1302
		1303	warn "... loading '$k' into '$v->{pkg}'\n";
		1304
		1305	unless (eval $v->{source}) {
		1306	my $msg = $@ ? "$v->{path}: $@\n"
		1307	: "$v->{base}: extension inactive.\n";
		1308
		1309	if (exists $v->{meta}{mandatory}) {
		1310	warn $msg;
		1311	warn "mandatory extension failed to load, exiting.\n";
		1312	exit 1;
		1313	}
		1314
		1315	warn $msg;
		1316	}
		1317
		1318	$done{$k} = delete $todo{$k};
		1319	push @EXTS, $v->{pkg};
		1320	$progress = 1;
914	1	1321	}
915	} or warn "$ext not loaded: $@";	1322
		1323	skip:
		1324	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1325	unless $progress;
		1326	}
916	}	1327	};
917	}	1328	}
918		1329
919	#############################################################################	1330	#############################################################################
920		1331
		1332	=back
		1333
921	=head2 CORE EXTENSIONS	1334	=head2 CORE EXTENSIONS
922		1335
923	Functions and methods that extend core crossfire objects.	1336	Functions and methods that extend core crossfire objects.
924		1337
925	=cut	1338	=cut
…		…
930		1343
931	=head3 cf::player	1344	=head3 cf::player
932		1345
933	=over 4	1346	=over 4
934		1347
		1348	=item cf::player::num_playing
		1349
		1350	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1351
		1352	=cut
		1353
		1354	sub num_playing {
		1355	scalar grep
		1356	$_->ob->map
		1357	&& !$_->hidden
		1358	&& !$_->ob->flag (cf::FLAG_WIZ),
		1359	cf::player::list
		1360	}
		1361
935	=item cf::player::find $login	1362	=item cf::player::find $login
936		1363
937	Returns the given player object, loading it if necessary (might block).	1364	Returns the given player object, loading it if necessary (might block).
938		1365
939	=cut	1366	=cut
940		1367
941	sub playerdir($) {	1368	sub playerdir($) {
942	cf::localdir	1369	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1370	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1371	}
948		1372
949	sub path($) {	1373	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1374	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1375
952	(playerdir $login) . "/$login.pl"	1376	(playerdir $login) . "/playerdata"
953	}	1377	}
954		1378
955	sub find_active($) {	1379	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1380	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1381	and $cf::PLAYER{$_[0]}->active
…		…
970	my $login = $_[0];	1394	my $login = $_[0];
971		1395
972	my $guard = cf::lock_acquire "user_find:$login";	1396	my $guard = cf::lock_acquire "user_find:$login";
973		1397
974	$cf::PLAYER{$_[0]} || do {	1398	$cf::PLAYER{$_[0]} || do {
975	my $pl = load_pl path $login	1399	# rename old playerfiles to new ones
		1400	#TODO: remove when no longer required
		1401	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1402	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1403	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1404	aio_unlink +(playerdir $login) . "/$login.pl";
		1405
		1406	my $f = new_from_file cf::object::thawer path $login
976	or return;	1407	or return;
		1408
		1409	my $pl = cf::player::load_pl $f
		1410	or return;
		1411	local $cf::PLAYER_LOADING{$login} = $pl;
		1412	$f->resolve_delayed_derefs;
977	$cf::PLAYER{$login} = $pl	1413	$cf::PLAYER{$login} = $pl
978	}	1414	}
979	}	1415	}
980	}	1416	}
981		1417
…		…
991		1427
992	aio_mkdir playerdir $pl, 0770;	1428	aio_mkdir playerdir $pl, 0770;
993	$pl->{last_save} = $cf::RUNTIME;	1429	$pl->{last_save} = $cf::RUNTIME;
994		1430
995	$pl->save_pl ($path);	1431	$pl->save_pl ($path);
996	Coro::cede;	1432	cf::cede_to_tick;
997	}	1433	}
998		1434
999	sub new($) {	1435	sub new($) {
1000	my ($login) = @_;	1436	my ($login) = @_;
1001		1437
…		…
1007	$cf::PLAYER{$login} = $self;	1443	$cf::PLAYER{$login} = $self;
1008		1444
1009	$self	1445	$self
1010	}	1446	}
1011		1447
		1448	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1449
		1450	=cut
		1451
		1452	sub send_msg {
		1453	my $ns = shift->ns
		1454	or return;
		1455	$ns->send_msg (@_);
		1456	}
		1457
1012	=item $pl->quit_character	1458	=item $pl->quit_character
1013		1459
1014	Nukes the player without looking back. If logged in, the connection will	1460	Nukes the player without looking back. If logged in, the connection will
1015	be destroyed. May block for a long time.	1461	be destroyed. May block for a long time.
1016		1462
1017	=cut	1463	=cut
1018		1464
1019	sub quit_character {	1465	sub quit_character {
1020	my ($pl) = @_;	1466	my ($pl) = @_;
		1467
		1468	my $name = $pl->ob->name;
1021		1469
1022	$pl->{deny_save} = 1;	1470	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1471	$pl->password ("*"); # this should lock out the player until we nuked the dir
1024		1472
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1473	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1030	my $path = playerdir $pl;	1478	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1479	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1480	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1481	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1482	$pl->destroy;
		1483
		1484	my $prefix = qr<^~\Q$name\E/>;
		1485
		1486	# nuke player maps
		1487	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1488
1035	IO::AIO::aio_rmtree $temp;	1489	IO::AIO::aio_rmtree $temp;
		1490	}
		1491
		1492	=item $pl->kick
		1493
		1494	Kicks a player out of the game. This destroys the connection.
		1495
		1496	=cut
		1497
		1498	sub kick {
		1499	my ($pl, $kicker) = @_;
		1500
		1501	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1502	$pl->killer ("kicked");
		1503	$pl->ns->destroy;
1036	}	1504	}
1037		1505
1038	=item cf::player::list_logins	1506	=item cf::player::list_logins
1039		1507
1040	Returns am arrayref of all valid playernames in the system, can take a	1508	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1509	while and may block, so not sync_job-capable, ever.
1042		1510
1043	=cut	1511	=cut
1044		1512
1045	sub list_logins {	1513	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1514	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1515	or return [];
1048		1516
1049	my @logins;	1517	my @logins;
1050		1518
1051	for my $login (@$dirs) {	1519	for my $login (@$dirs) {
		1520	my $path = path $login;
		1521
		1522	# a .pst is a dead give-away for a valid player
		1523	unless (-e "$path.pst") {
1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1524	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1053	aio_read $fh, 0, 512, my $buf, 0 or next;	1525	aio_read $fh, 0, 512, my $buf, 0 or next;
1054	$buf !~ /^password -------------$/m or next; # official not-valid tag	1526	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1527	}
1055		1528
1056	utf8::decode $login;	1529	utf8::decode $login;
1057	push @logins, $login;	1530	push @logins, $login;
1058	}	1531	}
1059		1532
…		…
1067		1540
1068	=cut	1541	=cut
1069		1542
1070	sub maps($) {	1543	sub maps($) {
1071	my ($pl) = @_;	1544	my ($pl) = @_;
		1545
		1546	$pl = ref $pl ? $pl->ob->name : $pl;
1072		1547
1073	my $files = aio_readdir playerdir $pl	1548	my $files = aio_readdir playerdir $pl
1074	or return;	1549	or return;
1075		1550
1076	my @paths;	1551	my @paths;
…		…
1078	for (@$files) {	1553	for (@$files) {
1079	utf8::decode $_;	1554	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1555	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1556	next unless /^$PATH_SEP/o;
1082		1557
1083	s/\.map$//;	1558	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1559	}
1086		1560
1087	\@paths	1561	\@paths
1088	}	1562	}
1089		1563
		1564	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1565
		1566	Expand crossfire pod fragments into protocol xml.
		1567
		1568	=cut
		1569
		1570	use re 'eval';
		1571
		1572	my $group;
		1573	my $interior; $interior = qr{
		1574	# match a pod interior sequence sans C<< >>
		1575	(?:
		1576	\ (.*?)\ (?{ $group = $^N })
		1577	| < (??{$interior}) >
		1578	)
		1579	}x;
		1580
		1581	sub expand_cfpod {
		1582	my ($self, $pod) = @_;
		1583
		1584	my $xml;
		1585
		1586	while () {
		1587	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1588	$group = $1;
		1589
		1590	$group =~ s/&/&amp;/g;
		1591	$group =~ s/</&lt;/g;
		1592
		1593	$xml .= $group;
		1594	} elsif ($pod =~ m%\G
		1595	([BCGHITU])
		1596	<
		1597	(?:
		1598	([^<>]*) (?{ $group = $^N })
		1599	| < $interior >
		1600	)
		1601	>
		1602	%gcsx
		1603	) {
		1604	my ($code, $data) = ($1, $group);
		1605
		1606	if ($code eq "B") {
		1607	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1608	} elsif ($code eq "I") {
		1609	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1610	} elsif ($code eq "U") {
		1611	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1612	} elsif ($code eq "C") {
		1613	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1614	} elsif ($code eq "T") {
		1615	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1616	} elsif ($code eq "G") {
		1617	my ($male, $female) = split /\|/, $data;
		1618	$data = $self->gender ? $female : $male;
		1619	$xml .= expand_cfpod ($self, $data);
		1620	} elsif ($code eq "H") {
		1621	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1622	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1623	"")
		1624	[$self->{hintmode}];
		1625	} else {
		1626	$xml .= "error processing '$code($data)' directive";
		1627	}
		1628	} else {
		1629	if ($pod =~ /\G(.+)/) {
		1630	warn "parse error while expanding $pod (at $1)";
		1631	}
		1632	last;
		1633	}
		1634	}
		1635
		1636	for ($xml) {
		1637	# create single paragraphs (very hackish)
		1638	s/(?<=\S)\n(?=\w)/ /g;
		1639
		1640	# compress some whitespace
		1641	s/\s+\n/\n/g; # ws line-ends
		1642	s/\n\n+/\n/g; # double lines
		1643	s/^\n+//; # beginning lines
		1644	s/\n+$//; # ending lines
		1645	}
		1646
		1647	$xml
		1648	}
		1649
		1650	no re 'eval';
		1651
		1652	sub hintmode {
		1653	$_[0]{hintmode} = $_[1] if @_ > 1;
		1654	$_[0]{hintmode}
		1655	}
		1656
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1657	=item $player->ext_reply ($msgid, @msg)
1091		1658
1092	Sends an ext reply to the player.	1659	Sends an ext reply to the player.
1093		1660
1094	=cut	1661	=cut
1095		1662
1096	sub ext_reply($$$%) {	1663	sub ext_reply($$@) {
1097	my ($self, $id, %msg) = @_;	1664	my ($self, $id, @msg) = @_;
1098		1665
1099	$msg{msgid} = $id;	1666	$self->ns->ext_reply ($id, @msg)
1100
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1667	}
1103		1668
1104	package cf;	1669	=item $player->ext_msg ($type, @msg)
		1670
		1671	Sends an ext event to the client.
		1672
		1673	=cut
		1674
		1675	sub ext_msg($$@) {
		1676	my ($self, $type, @msg) = @_;
		1677
		1678	$self->ns->ext_msg ($type, @msg);
		1679	}
		1680
		1681	=head3 cf::region
		1682
		1683	=over 4
		1684
		1685	=cut
		1686
		1687	package cf::region;
		1688
		1689	=item cf::region::find_by_path $path
		1690
		1691	Tries to decuce the likely region for a map knowing only its path.
		1692
		1693	=cut
		1694
		1695	sub find_by_path($) {
		1696	my ($path) = @_;
		1697
		1698	my ($match, $specificity);
		1699
		1700	for my $region (list) {
		1701	if ($region->{match} && $path =~ $region->{match}) {
		1702	($match, $specificity) = ($region, $region->specificity)
		1703	if $region->specificity > $specificity;
		1704	}
		1705	}
		1706
		1707	$match
		1708	}
1105		1709
1106	=back	1710	=back
1107
1108		1711
1109	=head3 cf::map	1712	=head3 cf::map
1110		1713
1111	=over 4	1714	=over 4
1112		1715
…		…
1167	my ($self, $merge) = @_;	1770	my ($self, $merge) = @_;
1168		1771
1169	# we have to keep some variables in memory intact	1772	# we have to keep some variables in memory intact
1170	local $self->{path};	1773	local $self->{path};
1171	local $self->{load_path};	1774	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1775
1175	$self->SUPER::thawer_merge ($merge);	1776	$self->SUPER::thawer_merge ($merge);
1176	}	1777	}
1177		1778
1178	sub normalise {	1779	sub normalise {
1179	my ($path, $base) = @_;	1780	my ($path, $base) = @_;
1180		1781
1181	$path = "$path"; # make sure its a string	1782	$path = "$path"; # make sure its a string
		1783
		1784	$path =~ s/\.map$//;
1182		1785
1183	# map plan:	1786	# map plan:
1184	#	1787	#
1185	# /! non-realised random map exit (special hack!)	1788	# /! non-realised random map exit (special hack!)
1186	# {... are special paths that are not being touched	1789	# {... are special paths that are not being touched
…		…
1223	$self->init; # pass $1 etc.	1826	$self->init; # pass $1 etc.
1224	return $self;	1827	return $self;
1225	}	1828	}
1226	}	1829	}
1227		1830
1228	Carp::carp "unable to resolve path '$path' (base '$base').";	1831	Carp::cluck "unable to resolve path '$path' (base '$base').";
1229	()	1832	()
1230	}	1833	}
1231		1834
1232	sub init {	1835	sub init {
1233	my ($self) = @_;	1836	my ($self) = @_;
…		…
1248		1851
1249	# the original (read-only) location	1852	# the original (read-only) location
1250	sub load_path {	1853	sub load_path {
1251	my ($self) = @_;	1854	my ($self) = @_;
1252		1855
1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1856	"$MAPDIR/$self->{path}.map"
1254	}	1857	}
1255		1858
1256	# the temporary/swap location	1859	# the temporary/swap location
1257	sub save_path {	1860	sub save_path {
1258	my ($self) = @_;	1861	my ($self) = @_;
1259		1862
1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1863	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1864	"$TMPDIR/$path.map"
1262	}	1865	}
1263		1866
1264	# the unique path, undef == no special unique path	1867	# the unique path, undef == no special unique path
1265	sub uniq_path {	1868	sub uniq_path {
1266	my ($self) = @_;	1869	my ($self) = @_;
1267		1870
1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1871	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1872	"$UNIQUEDIR/$path"
1270	}	1873	}
1271		1874
1272	# and all this just because we cannot iterate over	1875	# and all this just because we cannot iterate over
1273	# all maps in C++...	1876	# all maps in C++...
1274	sub change_all_map_light {	1877	sub change_all_map_light {
…		…
1276		1879
1277	$_->change_map_light ($change)	1880	$_->change_map_light ($change)
1278	for grep $_->outdoor, values %cf::MAP;	1881	for grep $_->outdoor, values %cf::MAP;
1279	}	1882	}
1280		1883
		1884	sub decay_objects {
		1885	my ($self) = @_;
		1886
		1887	return if $self->{deny_reset};
		1888
		1889	$self->do_decay_objects;
		1890	}
		1891
1281	sub unlink_save {	1892	sub unlink_save {
1282	my ($self) = @_;	1893	my ($self) = @_;
1283		1894
1284	utf8::encode (my $save = $self->save_path);	1895	utf8::encode (my $save = $self->save_path);
1285	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1896	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1288		1899
1289	sub load_header_from($) {	1900	sub load_header_from($) {
1290	my ($self, $path) = @_;	1901	my ($self, $path) = @_;
1291		1902
1292	utf8::encode $path;	1903	utf8::encode $path;
1293	aio_open $path, O_RDONLY, 0	1904	my $f = new_from_file cf::object::thawer $path
1294	or return;	1905	or return;
1295		1906
1296	$self->_load_header ($path)	1907	$self->_load_header ($f)
1297	or return;	1908	or return;
		1909
		1910	local $MAP_LOADING{$self->{path}} = $self;
		1911	$f->resolve_delayed_derefs;
1298		1912
1299	$self->{load_path} = $path;	1913	$self->{load_path} = $path;
1300		1914
1301	1	1915	1
1302	}	1916	}
…		…
1341	$self->load_header_orig	1955	$self->load_header_orig
1342	or return;	1956	or return;
1343	$self->prepare_orig;	1957	$self->prepare_orig;
1344	}	1958	}
1345		1959
		1960	$self->{deny_reset} = 1
		1961	if $self->no_reset;
		1962
		1963	$self->default_region (cf::region::find_by_path $self->{path})
		1964	unless $self->default_region;
		1965
1346	1	1966	1
1347	}	1967	}
1348		1968
1349	sub find;	1969	sub find;
1350	sub find {	1970	sub find {
1351	my ($path, $origin) = @_;	1971	my ($path, $origin) = @_;
1352		1972
1353	$path = normalise $path, $origin && $origin->path;	1973	$path = normalise $path, $origin && $origin->path;
1354		1974
		1975	cf::lock_wait "map_data:$path";#d#remove
1355	cf::lock_wait "map_find:$path";	1976	cf::lock_wait "map_find:$path";
1356		1977
1357	$cf::MAP{$path} || do {	1978	$cf::MAP{$path} || do {
1358	my $guard = cf::lock_acquire "map_find:$path";	1979	my $guard1 = cf::lock_acquire "map_find:$path";
		1980	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1981
1359	my $map = new_from_path cf::map $path	1982	my $map = new_from_path cf::map $path
1360	or return;	1983	or return;
1361		1984
1362	$map->{last_save} = $cf::RUNTIME;	1985	$map->{last_save} = $cf::RUNTIME;
1363		1986
1364	$map->load_header	1987	$map->load_header
1365	or return;	1988	or return;
1366		1989
1367	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1990	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1368	# doing this can freeze the server in a sync job, obviously	1991	# doing this can freeze the server in a sync job, obviously
1369	#$cf::WAIT_FOR_TICK->wait;	1992	#$cf::WAIT_FOR_TICK->wait;
		1993	undef $guard1;
		1994	undef $guard2;
1370	$map->reset;	1995	$map->reset;
1371	undef $guard;
1372	return find $path;	1996	return find $path;
1373	}	1997	}
1374		1998
1375	$cf::MAP{$path} = $map	1999	$cf::MAP{$path} = $map
1376	}	2000	}
…		…
1383	my ($self) = @_;	2007	my ($self) = @_;
1384		2008
1385	local $self->{deny_reset} = 1; # loading can take a long time	2009	local $self->{deny_reset} = 1; # loading can take a long time
1386		2010
1387	my $path = $self->{path};	2011	my $path = $self->{path};
		2012
		2013	{
1388	my $guard = cf::lock_acquire "map_load:$path";	2014	my $guard = cf::lock_acquire "map_data:$path";
1389		2015
		2016	return unless $self->valid;
1390	return if $self->in_memory != cf::MAP_SWAPPED;	2017	return unless $self->in_memory == cf::MAP_SWAPPED;
1391		2018
1392	$self->in_memory (cf::MAP_LOADING);	2019	$self->in_memory (cf::MAP_LOADING);
1393		2020
1394	$self->alloc;	2021	$self->alloc;
1395		2022
1396	$self->pre_load;	2023	$self->pre_load;
		2024	cf::cede_to_tick;
1397		2025
1398	$self->_load_objects ($self->{load_path}, 1)	2026	my $f = new_from_file cf::object::thawer $self->{load_path};
		2027	$f->skip_block;
		2028	$self->_load_objects ($f)
1399	or return;	2029	or return;
1400		2030
1401	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2031	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1402	if delete $self->{load_original};	2032	if delete $self->{load_original};
1403		2033
1404	if (my $uniq = $self->uniq_path) {	2034	if (my $uniq = $self->uniq_path) {
1405	utf8::encode $uniq;	2035	utf8::encode $uniq;
1406	if (aio_open $uniq, O_RDONLY, 0) {	2036	unless (aio_stat $uniq) {
		2037	if (my $f = new_from_file cf::object::thawer $uniq) {
1407	$self->clear_unique_items;	2038	$self->clear_unique_items;
1408	$self->_load_objects ($uniq, 0);	2039	$self->_load_objects ($f);
		2040	$f->resolve_delayed_derefs;
		2041	}
1409	}	2042	}
1410	}	2043	}
1411		2044
1412	Coro::cede;	2045	$f->resolve_delayed_derefs;
1413		2046
		2047	cf::cede_to_tick;
1414	# now do the right thing for maps	2048	# now do the right thing for maps
1415	$self->link_multipart_objects;	2049	$self->link_multipart_objects;
1416
1417	unless ($self->{deny_activate}) {
1418	$self->decay_objects;
1419	$self->fix_auto_apply;
1420	$self->update_buttons;
1421	Coro::cede;
1422	$self->set_darkness_map;
1423	$self->difficulty ($self->estimate_difficulty)	2050	$self->difficulty ($self->estimate_difficulty)
1424	unless $self->difficulty;	2051	unless $self->difficulty;
1425	Coro::cede;	2052	cf::cede_to_tick;
		2053
		2054	unless ($self->{deny_activate}) {
		2055	$self->decay_objects;
		2056	$self->fix_auto_apply;
		2057	$self->update_buttons;
		2058	cf::cede_to_tick;
		2059	$self->set_darkness_map;
		2060	cf::cede_to_tick;
1426	$self->activate;	2061	$self->activate;
		2062	}
		2063
		2064	$self->{last_save} = $cf::RUNTIME;
		2065	$self->last_access ($cf::RUNTIME);
		2066
		2067	$self->in_memory (cf::MAP_IN_MEMORY);
1427	}	2068	}
1428		2069
1429	$self->post_load;	2070	$self->post_load;
1430
1431	$self->in_memory (cf::MAP_IN_MEMORY);
1432	}	2071	}
1433		2072
1434	sub customise_for {	2073	sub customise_for {
1435	my ($self, $ob) = @_;	2074	my ($self, $ob) = @_;
1436		2075
1437	return find "~" . $ob->name . "/" . $self->{path}	2076	return find "~" . $ob->name . "/" . $self->{path}
1438	if $self->per_player;	2077	if $self->per_player;
1439		2078
		2079	# return find "?party/" . $ob->name . "/" . $self->{path}
		2080	# if $self->per_party;
		2081
1440	$self	2082	$self
1441	}	2083	}
1442		2084
1443	# find and load all maps in the 3x3 area around a map	2085	# find and load all maps in the 3x3 area around a map
1444	sub load_diag {	2086	sub load_neighbours {
1445	my ($map) = @_;	2087	my ($map) = @_;
1446		2088
1447	my @diag; # diagonal neighbours	2089	my @neigh; # diagonal neighbours
1448		2090
1449	for (0 .. 3) {	2091	for (0 .. 3) {
1450	my $neigh = $map->tile_path ($_)	2092	my $neigh = $map->tile_path ($_)
1451	or next;	2093	or next;
1452	$neigh = find $neigh, $map	2094	$neigh = find $neigh, $map
1453	or next;	2095	or next;
1454	$neigh->load;	2096	$neigh->load;
1455		2097
		2098	push @neigh,
1456	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2099	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1457	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2100	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1458	}	2101	}
1459		2102
1460	for (@diag) {	2103	for (grep defined $_->[0], @neigh) {
		2104	my ($path, $origin) = @$_;
1461	my $neigh = find @$_	2105	my $neigh = find $path, $origin
1462	or next;	2106	or next;
1463	$neigh->load;	2107	$neigh->load;
1464	}	2108	}
1465	}	2109	}
1466		2110
…		…
1471	}	2115	}
1472		2116
1473	sub do_load_sync {	2117	sub do_load_sync {
1474	my ($map) = @_;	2118	my ($map) = @_;
1475		2119
		2120	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2121	if $Coro::current == $Coro::main;
		2122
1476	cf::sync_job { $map->load };	2123	cf::sync_job { $map->load };
1477	}	2124	}
1478		2125
1479	our %MAP_PREFETCH;	2126	our %MAP_PREFETCH;
1480	our $MAP_PREFETCHER = undef;	2127	our $MAP_PREFETCHER = undef;
1481		2128
1482	sub find_async {	2129	sub find_async {
1483	my ($path, $origin) = @_;	2130	my ($path, $origin, $load) = @_;
1484		2131
1485	$path = normalise $path, $origin && $origin->{path};	2132	$path = normalise $path, $origin && $origin->{path};
1486		2133
1487	if (my $map = $cf::MAP{$path}) {	2134	if (my $map = $cf::MAP{$path}) {
1488	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2135	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1489	}	2136	}
1490		2137
1491	undef $MAP_PREFETCH{$path};	2138	$MAP_PREFETCH{$path} |= $load;
		2139
1492	$MAP_PREFETCHER ||= cf::async {	2140	$MAP_PREFETCHER ||= cf::async {
		2141	$Coro::current->{desc} = "map prefetcher";
		2142
1493	while (%MAP_PREFETCH) {	2143	while (%MAP_PREFETCH) {
1494	for my $path (keys %MAP_PREFETCH) {	2144	while (my ($k, $v) = each %MAP_PREFETCH) {
1495	my $map = find $path	2145	if (my $map = find $k) {
1496	or next;
1497	$map->load;	2146	$map->load if $v;
		2147	}
1498		2148
1499	delete $MAP_PREFETCH{$path};	2149	delete $MAP_PREFETCH{$k};
1500	}	2150	}
1501	}	2151	}
1502	undef $MAP_PREFETCHER;	2152	undef $MAP_PREFETCHER;
1503	};	2153	};
1504	$MAP_PREFETCHER->prio (6);	2154	$MAP_PREFETCHER->prio (6);
…		…
1507	}	2157	}
1508		2158
1509	sub save {	2159	sub save {
1510	my ($self) = @_;	2160	my ($self) = @_;
1511		2161
1512	my $lock = cf::lock_acquire "map_data:" . $self->path;	2162	my $lock = cf::lock_acquire "map_data:$self->{path}";
1513		2163
1514	$self->{last_save} = $cf::RUNTIME;	2164	$self->{last_save} = $cf::RUNTIME;
1515		2165
1516	return unless $self->dirty;	2166	return unless $self->dirty;
1517		2167
…		…
1523	return if $self->{deny_save};	2173	return if $self->{deny_save};
1524		2174
1525	local $self->{last_access} = $self->last_access;#d#	2175	local $self->{last_access} = $self->last_access;#d#
1526		2176
1527	cf::async {	2177	cf::async {
		2178	$Coro::current->{desc} = "map player save";
1528	$_->contr->save for $self->players;	2179	$_->contr->save for $self->players;
1529	};	2180	};
1530		2181
1531	if ($uniq) {	2182	if ($uniq) {
1532	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2183	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1540	my ($self) = @_;	2191	my ($self) = @_;
1541		2192
1542	# save first because save cedes	2193	# save first because save cedes
1543	$self->save;	2194	$self->save;
1544		2195
1545	my $lock = cf::lock_acquire "map_data:" . $self->path;	2196	my $lock = cf::lock_acquire "map_data:$self->{path}";
1546		2197
1547	return if $self->players;	2198	return if $self->players;
1548	return if $self->in_memory != cf::MAP_IN_MEMORY;	2199	return if $self->in_memory != cf::MAP_IN_MEMORY;
1549	return if $self->{deny_save};	2200	return if $self->{deny_save};
1550		2201
		2202	$self->in_memory (cf::MAP_SWAPPED);
		2203
		2204	$self->deactivate;
		2205	$_->clear_links_to ($self) for values %cf::MAP;
1551	$self->clear;	2206	$self->clear;
1552	$self->in_memory (cf::MAP_SWAPPED);
1553	}	2207	}
1554		2208
1555	sub reset_at {	2209	sub reset_at {
1556	my ($self) = @_;	2210	my ($self) = @_;
1557		2211
1558	# TODO: safety, remove and allow resettable per-player maps	2212	# TODO: safety, remove and allow resettable per-player maps
1559	return 1e99 if $self->isa ("ext::map_per_player");#d#
1560	return 1e99 if $self->{deny_reset};	2213	return 1e99 if $self->{deny_reset};
1561		2214
1562	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2215	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1563	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2216	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1564		2217
…		…
1575	my ($self) = @_;	2228	my ($self) = @_;
1576		2229
1577	my $lock = cf::lock_acquire "map_data:$self->{path}";	2230	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2231
1579	return if $self->players;	2232	return if $self->players;
1580	return if $self->isa ("ext::map_per_player");#d#
1581		2233
1582	warn "resetting map ", $self->path;#d#	2234	warn "resetting map ", $self->path;
		2235
		2236	$self->in_memory (cf::MAP_SWAPPED);
		2237
		2238	# need to save uniques path
		2239	unless ($self->{deny_save}) {
		2240	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2241
		2242	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2243	if $uniq;
		2244	}
1583		2245
1584	delete $cf::MAP{$self->path};	2246	delete $cf::MAP{$self->path};
1585		2247
1586	$self->in_memory (cf::MAP_SWAPPED);	2248	$self->deactivate;
		2249	$_->clear_links_to ($self) for values %cf::MAP;
1587	$self->clear;	2250	$self->clear;
1588
1589	$_->clear_links_to ($self) for values %cf::MAP;
1590		2251
1591	$self->unlink_save;	2252	$self->unlink_save;
1592	$self->destroy;	2253	$self->destroy;
1593	}	2254	}
1594		2255
1595	my $nuke_counter = "aaaa";	2256	my $nuke_counter = "aaaa";
1596		2257
1597	sub nuke {	2258	sub nuke {
1598	my ($self) = @_;	2259	my ($self) = @_;
1599		2260
		2261	{
		2262	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2263
1600	delete $cf::MAP{$self->path};	2264	delete $cf::MAP{$self->path};
1601		2265
1602	$self->unlink_save;	2266	$self->unlink_save;
1603		2267
1604	bless $self, "cf::map";	2268	bless $self, "cf::map";
1605	delete $self->{deny_reset};	2269	delete $self->{deny_reset};
1606	$self->{deny_save} = 1;	2270	$self->{deny_save} = 1;
1607	$self->reset_timeout (1);	2271	$self->reset_timeout (1);
1608	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2272	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1609		2273
1610	$cf::MAP{$self->path} = $self;	2274	$cf::MAP{$self->path} = $self;
		2275	}
1611		2276
1612	$self->reset; # polite request, might not happen	2277	$self->reset; # polite request, might not happen
		2278	}
		2279
		2280	=item $maps = cf::map::tmp_maps
		2281
		2282	Returns an arrayref with all map paths of currently instantiated and saved
		2283	maps. May block.
		2284
		2285	=cut
		2286
		2287	sub tmp_maps() {
		2288	[
		2289	map {
		2290	utf8::decode $_;
		2291	/\.map$/
		2292	? normalise $_
		2293	: ()
		2294	} @{ aio_readdir $TMPDIR or [] }
		2295	]
		2296	}
		2297
		2298	=item $maps = cf::map::random_maps
		2299
		2300	Returns an arrayref with all map paths of currently instantiated and saved
		2301	random maps. May block.
		2302
		2303	=cut
		2304
		2305	sub random_maps() {
		2306	[
		2307	map {
		2308	utf8::decode $_;
		2309	/\.map$/
		2310	? normalise "?random/$_"
		2311	: ()
		2312	} @{ aio_readdir $RANDOMDIR or [] }
		2313	]
1613	}	2314	}
1614		2315
1615	=item cf::map::unique_maps	2316	=item cf::map::unique_maps
1616		2317
1617	Returns an arrayref of paths of all shared maps that have	2318	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	2319	instantiated unique items. May block.
1619		2320
1620	=cut	2321	=cut
1621		2322
1622	sub unique_maps() {	2323	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2324	[
1624	or return;	2325	map {
1625
1626	my @paths;
1627
1628	for (@$files) {
1629	utf8::decode $_;	2326	utf8::decode $_;
1630	next if /\.pst$/;
1631	next unless /^$PATH_SEP/o;
1632
1633	s/\.map$//;	2327	/\.map$/
1634	push @paths, $_;	2328	? normalise $_
		2329	: ()
		2330	} @{ aio_readdir $UNIQUEDIR or [] }
1635	}	2331	]
1636
1637	\@paths
1638	}	2332	}
1639		2333
1640	package cf;	2334	package cf;
1641		2335
1642	=back	2336	=back
…		…
1660	map { $_, inv_recursive_ $_->inv } @_	2354	map { $_, inv_recursive_ $_->inv } @_
1661	}	2355	}
1662		2356
1663	sub inv_recursive {	2357	sub inv_recursive {
1664	inv_recursive_ inv $_[0]	2358	inv_recursive_ inv $_[0]
		2359	}
		2360
		2361	=item $ref = $ob->ref
		2362
		2363	creates and returns a persistent reference to an objetc that can be stored as a string.
		2364
		2365	=item $ob = cf::object::deref ($refstring)
		2366
		2367	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2368	even if the object actually exists. May block.
		2369
		2370	=cut
		2371
		2372	sub deref {
		2373	my ($ref) = @_;
		2374
		2375	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2376	my ($uuid, $name) = ($1, $2);
		2377	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2378	or return;
		2379	$pl->ob->uuid eq $uuid
		2380	or return;
		2381
		2382	$pl->ob
		2383	} else {
		2384	warn "$ref: cannot resolve object reference\n";
		2385	undef
		2386	}
1665	}	2387	}
1666		2388
1667	package cf;	2389	package cf;
1668		2390
1669	=back	2391	=back
…		…
1688		2410
1689	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2411	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1690		2412
1691	if ($self->{record_replies}) {	2413	if ($self->{record_replies}) {
1692	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2414	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2415
1693	} else {	2416	} else {
		2417	my $pl = $self->contr;
		2418
		2419	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2420	my $dialog = $pl->{npc_dialog};
		2421	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2422
		2423	} else {
1694	$msg = $npc->name . " says: $msg" if $npc;	2424	$msg = $npc->name . " says: $msg" if $npc;
1695	$self->message ($msg, $flags);	2425	$self->message ($msg, $flags);
		2426	}
1696	}	2427	}
		2428	}
		2429
		2430	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2431
		2432	=cut
		2433
		2434	sub cf::object::send_msg {
		2435	my $pl = shift->contr
		2436	or return;
		2437	$pl->send_msg (@_);
1697	}	2438	}
1698		2439
1699	=item $player_object->may ("access")	2440	=item $player_object->may ("access")
1700		2441
1701	Returns wether the given player is authorized to access resource "access"	2442	Returns wether the given player is authorized to access resource "access"
…		…
1748	$self->deactivate_recursive;	2489	$self->deactivate_recursive;
1749		2490
1750	return if UNIVERSAL::isa $self->map, "ext::map_link";	2491	return if UNIVERSAL::isa $self->map, "ext::map_link";
1751		2492
1752	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2493	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1753	if $self->map;	2494	if $self->map && $self->map->{path} ne "{link}";
1754		2495
1755	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2496	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1756	}	2497	}
1757		2498
1758	sub cf::object::player::leave_link {	2499	sub cf::object::player::leave_link {
1759	my ($self, $map, $x, $y) = @_;	2500	my ($self, $map, $x, $y) = @_;
		2501
		2502	return unless $self->contr->active;
1760		2503
1761	my $link_pos = delete $self->{_link_pos};	2504	my $link_pos = delete $self->{_link_pos};
1762		2505
1763	unless ($map) {	2506	unless ($map) {
1764	# restore original map position	2507	# restore original map position
…		…
1778	# use -1 or undef as default coordinates, not 0, 0	2521	# use -1 or undef as default coordinates, not 0, 0
1779	($x, $y) = ($map->enter_x, $map->enter_y)	2522	($x, $y) = ($map->enter_x, $map->enter_y)
1780	if $x <=0 && $y <= 0;	2523	if $x <=0 && $y <= 0;
1781		2524
1782	$map->load;	2525	$map->load;
1783	$map->load_diag;	2526	$map->load_neighbours;
1784		2527
1785	return unless $self->contr->active;	2528	return unless $self->contr->active;
1786	$self->activate_recursive;	2529	$self->activate_recursive;
		2530
		2531	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1787	$self->enter_map ($map, $x, $y);	2532	$self->enter_map ($map, $x, $y);
1788	}	2533	}
1789		2534
1790	cf::player->attach (	2535	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1791	on_logout => sub {
1792	my ($pl) = @_;
1793		2536
1794	# abort map switching before logout	2537	Moves the player to the given map-path and coordinates by first freezing
1795	if ($pl->ob->{_link_pos}) {	2538	her, loading and preparing them map, calling the provided $check callback
1796	cf::sync_job {	2539	that has to return the map if sucecssful, and then unfreezes the player on
1797	$pl->ob->leave_link	2540	the new (success) or old (failed) map position. In either case, $done will
1798	};	2541	be called at the end of this process.
1799	}
1800	},
1801	on_login => sub {
1802	my ($pl) = @_;
1803		2542
1804	# try to abort aborted map switching on player login :)
1805	# should happen only on crashes
1806	if ($pl->ob->{_link_pos}) {
1807	$pl->ob->enter_link;
1808	(async {
1809	# we need this sleep as the login has a concurrent enter_exit running
1810	# and this sleep increases chances of the player not ending up in scorn
1811	$pl->ob->reply (undef,
1812	"There was an internal problem at your last logout, "
1813	. "the server will try to bring you to your intended destination in a second.",
1814	cf::NDI_RED);
1815	Coro::Timer::sleep 1;
1816	$pl->ob->leave_link;
1817	})->prio (2);
1818	}
1819	},
1820	);
1821
1822	=item $player_object->goto ($path, $x, $y)
1823
1824	=cut	2543	=cut
		2544
		2545	our $GOTOGEN;
1825		2546
1826	sub cf::object::player::goto {	2547	sub cf::object::player::goto {
1827	my ($self, $path, $x, $y) = @_;	2548	my ($self, $path, $x, $y, $check, $done) = @_;
		2549
		2550	# do generation counting so two concurrent goto's will be executed in-order
		2551	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1828		2552
1829	$self->enter_link;	2553	$self->enter_link;
1830		2554
1831	(async {	2555	(async {
		2556	$Coro::current->{desc} = "player::goto $path $x $y";
		2557
		2558	# *tag paths override both path and x|y
		2559	if ($path =~ /^\*(.*)$/) {
		2560	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2561	my $ob = $obs[rand @obs];
		2562
		2563	# see if we actually can go there
		2564	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2565	$ob = $obs[rand @obs];
		2566	} else {
		2567	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2568	}
		2569	# else put us there anyways for now #d#
		2570
		2571	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2572	} else {
		2573	($path, $x, $y) = (undef, undef, undef);
		2574	}
		2575	}
		2576
1832	my $map = eval {	2577	my $map = eval {
1833	my $map = cf::map::find $path;	2578	my $map = defined $path ? cf::map::find $path : undef;
		2579
		2580	if ($map) {
1834	$map = $map->customise_for ($self) if $map;	2581	$map = $map->customise_for ($self);
		2582	$map = $check->($map) if $check && $map;
		2583	} else {
		2584	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2585	}
		2586
1835	$map	2587	$map
		2588	};
		2589
		2590	if ($@) {
		2591	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2592	LOG llevError | logBacktrace, Carp::longmess $@;
1836	} or	2593	}
1837	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1838		2594
		2595	if ($gen == $self->{_goto_generation}) {
		2596	delete $self->{_goto_generation};
1839	$self->leave_link ($map, $x, $y);	2597	$self->leave_link ($map, $x, $y);
		2598	}
		2599
		2600	$done->() if $done;
1840	})->prio (1);	2601	})->prio (1);
1841	}	2602	}
1842		2603
1843	=item $player_object->enter_exit ($exit_object)	2604	=item $player_object->enter_exit ($exit_object)
1844		2605
…		…
1881	$rmp->{origin_y} = $exit->y;	2642	$rmp->{origin_y} = $exit->y;
1882	}	2643	}
1883		2644
1884	$rmp->{random_seed} ||= $exit->random_seed;	2645	$rmp->{random_seed} ||= $exit->random_seed;
1885		2646
1886	my $data = cf::to_json $rmp;	2647	my $data = cf::encode_json $rmp;
1887	my $md5 = Digest::MD5::md5_hex $data;	2648	my $md5 = Digest::MD5::md5_hex $data;
1888	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2649	my $meta = "$RANDOMDIR/$md5.meta";
1889		2650
1890	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2651	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1891	aio_write $fh, 0, (length $data), $data, 0;	2652	aio_write $fh, 0, (length $data), $data, 0;
1892	undef $fh;	2653	undef $fh;
1893	aio_rename "$meta~", $meta;	2654	aio_rename "$meta~", $meta;
…		…
1902		2663
1903	return unless $self->type == cf::PLAYER;	2664	return unless $self->type == cf::PLAYER;
1904		2665
1905	if ($exit->slaying eq "/!") {	2666	if ($exit->slaying eq "/!") {
1906	#TODO: this should de-fi-ni-te-ly not be a sync-job	2667	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2668	# the problem is that $exit might not survive long enough
		2669	# so it needs to be done right now, right here
1907	cf::sync_job { prepare_random_map $exit };	2670	cf::sync_job { prepare_random_map $exit };
1908	}	2671	}
1909		2672
1910	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2673	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1911	my $hp = $exit->stats->hp;	2674	my $hp = $exit->stats->hp;
1912	my $sp = $exit->stats->sp;	2675	my $sp = $exit->stats->sp;
1913		2676
1914	$self->enter_link;	2677	$self->enter_link;
1915		2678
		2679	# if exit is damned, update players death & WoR home-position
		2680	$self->contr->savebed ($slaying, $hp, $sp)
		2681	if $exit->flag (FLAG_DAMNED);
		2682
1916	(async {	2683	(async {
		2684	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2685
1917	$self->deactivate_recursive; # just to be sure	2686	$self->deactivate_recursive; # just to be sure
1918	unless (eval {	2687	unless (eval {
1919	$self->goto ($slaying, $hp, $sp);	2688	$self->goto ($slaying, $hp, $sp);
1920		2689
1921	1;	2690	1;
1922	}) {	2691	}) {
1923	$self->message ("Something went wrong deep within the crossfire server. "	2692	$self->message ("Something went wrong deep within the crossfire server. "
1924	. "I'll try to bring you back to the map you were before. "	2693	. "I'll try to bring you back to the map you were before. "
1925	. "Please report this to the dungeon master!",	2694	. "Please report this to the dungeon master!",
1926	cf::NDI_UNIQUE | cf::NDI_RED);	2695	cf::NDI_UNIQUE | cf::NDI_RED);
1927		2696
1928	warn "ERROR in enter_exit: $@";	2697	warn "ERROR in enter_exit: $@";
1929	$self->leave_link;	2698	$self->leave_link;
1930	}	2699	}
1931	})->prio (1);	2700	})->prio (1);
…		…
1944		2713
1945	sub cf::client::send_drawinfo {	2714	sub cf::client::send_drawinfo {
1946	my ($self, $text, $flags) = @_;	2715	my ($self, $text, $flags) = @_;
1947		2716
1948	utf8::encode $text;	2717	utf8::encode $text;
1949	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2718	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1950	}	2719	}
1951		2720
		2721	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2722
		2723	Send a drawinfo or msg packet to the client, formatting the msg for the
		2724	client if neccessary. C<$type> should be a string identifying the type of
		2725	the message, with C<log> being the default. If C<$color> is negative, suppress
		2726	the message unless the client supports the msg packet.
		2727
		2728	=cut
		2729
		2730	# non-persistent channels (usually the info channel)
		2731	our %CHANNEL = (
		2732	"c/identify" => {
		2733	id => "infobox",
		2734	title => "Identify",
		2735	reply => undef,
		2736	tooltip => "Items recently identified",
		2737	},
		2738	"c/examine" => {
		2739	id => "infobox",
		2740	title => "Examine",
		2741	reply => undef,
		2742	tooltip => "Signs and other items you examined",
		2743	},
		2744	"c/book" => {
		2745	id => "infobox",
		2746	title => "Book",
		2747	reply => undef,
		2748	tooltip => "The contents of a note or book",
		2749	},
		2750	"c/lookat" => {
		2751	id => "infobox",
		2752	title => "Look",
		2753	reply => undef,
		2754	tooltip => "What you saw there",
		2755	},
		2756	"c/who" => {
		2757	id => "infobox",
		2758	title => "Players",
		2759	reply => undef,
		2760	tooltip => "Shows players who are currently online",
		2761	},
		2762	"c/body" => {
		2763	id => "infobox",
		2764	title => "Body Parts",
		2765	reply => undef,
		2766	tooltip => "Shows which body parts you posess and are available",
		2767	},
		2768	"c/uptime" => {
		2769	id => "infobox",
		2770	title => "Uptime",
		2771	reply => undef,
		2772	tooltip => "How long the server has been running since last restart",
		2773	},
		2774	"c/mapinfo" => {
		2775	id => "infobox",
		2776	title => "Map Info",
		2777	reply => undef,
		2778	tooltip => "Information related to the maps",
		2779	},
		2780	);
		2781
		2782	sub cf::client::send_msg {
		2783	my ($self, $channel, $msg, $color, @extra) = @_;
		2784
		2785	$msg = $self->pl->expand_cfpod ($msg);
		2786
		2787	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2788
		2789	# check predefined channels, for the benefit of C
		2790	if ($CHANNEL{$channel}) {
		2791	$channel = $CHANNEL{$channel};
		2792
		2793	$self->ext_msg (channel_info => $channel)
		2794	if $self->can_msg;
		2795
		2796	$channel = $channel->{id};
		2797
		2798	} elsif (ref $channel) {
		2799	# send meta info to client, if not yet sent
		2800	unless (exists $self->{channel}{$channel->{id}}) {
		2801	$self->{channel}{$channel->{id}} = $channel;
		2802	$self->ext_msg (channel_info => $channel)
		2803	if $self->can_msg;
		2804	}
		2805
		2806	$channel = $channel->{id};
		2807	}
		2808
		2809	return unless @extra || length $msg;
		2810
		2811	if ($self->can_msg) {
		2812	# default colour, mask it out
		2813	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2814	if $color & cf::NDI_DEF;
		2815
		2816	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2817	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2818	} else {
		2819	if ($color >= 0) {
		2820	# replace some tags by gcfclient-compatible ones
		2821	for ($msg) {
		2822	1 while
		2823	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2824	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2825	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2826	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2827	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2828	}
		2829
		2830	$color &= cf::NDI_COLOR_MASK;
		2831
		2832	utf8::encode $msg;
		2833
		2834	if (0 && $msg =~ /\[/) {
		2835	# COMMAND/INFO
		2836	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2837	} else {
		2838	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2839	$self->send_packet ("drawinfo $color $msg")
		2840	}
		2841	}
		2842	}
		2843	}
		2844
		2845	=item $client->ext_msg ($type, @msg)
		2846
		2847	Sends an ext event to the client.
		2848
		2849	=cut
		2850
		2851	sub cf::client::ext_msg($$@) {
		2852	my ($self, $type, @msg) = @_;
		2853
		2854	if ($self->extcmd == 2) {
		2855	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2856	} elsif ($self->extcmd == 1) { # TODO: remove
		2857	push @msg, msgtype => "event_$type";
		2858	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2859	}
		2860	}
		2861
		2862	=item $client->ext_reply ($msgid, @msg)
		2863
		2864	Sends an ext reply to the client.
		2865
		2866	=cut
		2867
		2868	sub cf::client::ext_reply($$@) {
		2869	my ($self, $id, @msg) = @_;
		2870
		2871	if ($self->extcmd == 2) {
		2872	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2873	} elsif ($self->extcmd == 1) {
		2874	#TODO: version 1, remove
		2875	unshift @msg, msgtype => "reply", msgid => $id;
		2876	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2877	}
		2878	}
1952		2879
1953	=item $success = $client->query ($flags, "text", \&cb)	2880	=item $success = $client->query ($flags, "text", \&cb)
1954		2881
1955	Queues a query to the client, calling the given callback with	2882	Queues a query to the client, calling the given callback with
1956	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2883	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1957	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2884	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1958		2885
1959	Queries can fail, so check the return code. Or don't, as queries will become	2886	Queries can fail, so check the return code. Or don't, as queries will
1960	reliable at some point in the future.	2887	become reliable at some point in the future.
1961		2888
1962	=cut	2889	=cut
1963		2890
1964	sub cf::client::query {	2891	sub cf::client::query {
1965	my ($self, $flags, $text, $cb) = @_;	2892	my ($self, $flags, $text, $cb) = @_;
…		…
1973	utf8::encode $text;	2900	utf8::encode $text;
1974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2901	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1975		2902
1976	$self->send_packet ($self->{query_queue}[0][0])	2903	$self->send_packet ($self->{query_queue}[0][0])
1977	if @{ $self->{query_queue} } == 1;	2904	if @{ $self->{query_queue} } == 1;
		2905
		2906	1
1978	}	2907	}
1979		2908
1980	cf::client->attach (	2909	cf::client->attach (
		2910	on_connect => sub {
		2911	my ($ns) = @_;
		2912
		2913	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2914	},
1981	on_reply => sub {	2915	on_reply => sub {
1982	my ($ns, $msg) = @_;	2916	my ($ns, $msg) = @_;
1983		2917
1984	# this weird shuffling is so that direct followup queries	2918	# this weird shuffling is so that direct followup queries
1985	# get handled first	2919	# get handled first
1986	my $queue = delete $ns->{query_queue}	2920	my $queue = delete $ns->{query_queue}
1987	or return; # be conservative, not sure how that can happen, but we saw a crash here	2921	or return; # be conservative, not sure how that can happen, but we saw a crash here
1988		2922
1989	(shift @$queue)->[1]->($msg);	2923	(shift @$queue)->[1]->($msg);
		2924	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1990		2925
1991	push @{ $ns->{query_queue} }, @$queue;	2926	push @{ $ns->{query_queue} }, @$queue;
1992		2927
1993	if (@{ $ns->{query_queue} } == @$queue) {	2928	if (@{ $ns->{query_queue} } == @$queue) {
1994	if (@$queue) {	2929	if (@$queue) {
…		…
1996	} else {	2931	} else {
1997	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2932	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1998	}	2933	}
1999	}	2934	}
2000	},	2935	},
		2936	on_exticmd => sub {
		2937	my ($ns, $buf) = @_;
		2938
		2939	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2940
		2941	if (ref $msg) {
		2942	my ($type, $reply, @payload) =
		2943	"ARRAY" eq ref $msg
		2944	? @$msg
		2945	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2946
		2947	my @reply;
		2948
		2949	if (my $cb = $EXTICMD{$type}) {
		2950	@reply = $cb->($ns, @payload);
		2951	}
		2952
		2953	$ns->ext_reply ($reply, @reply)
		2954	if $reply;
		2955
		2956	} else {
		2957	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2958	}
		2959
		2960	cf::override;
		2961	},
2001	);	2962	);
2002		2963
2003	=item $client->async (\&cb)	2964	=item $client->async (\&cb)
2004		2965
2005	Create a new coroutine, running the specified callback. The coroutine will	2966	Create a new coroutine, running the specified callback. The coroutine will
…		…
2046	our $safe = new Safe "safe";	3007	our $safe = new Safe "safe";
2047	our $safe_hole = new Safe::Hole;	3008	our $safe_hole = new Safe::Hole;
2048		3009
2049	$SIG{FPE} = 'IGNORE';	3010	$SIG{FPE} = 'IGNORE';
2050		3011
2051	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3012	$safe->permit_only (Opcode::opset qw(
		3013	:base_core :base_mem :base_orig :base_math
		3014	grepstart grepwhile mapstart mapwhile
		3015	sort time
		3016	));
2052		3017
2053	# here we export the classes and methods available to script code	3018	# here we export the classes and methods available to script code
2054		3019
2055	=pod	3020	=pod
2056		3021
2057	The following fucntions and emthods are available within a safe environment:	3022	The following functions and methods are available within a safe environment:
2058		3023
2059	cf::object contr pay_amount pay_player map	3024	cf::object
		3025	contr pay_amount pay_player map x y force_find force_add destroy
		3026	insert remove name archname title slaying race decrease_ob_nr
		3027
2060	cf::object::player player	3028	cf::object::player
2061	cf::player peaceful	3029	player
2062	cf::map trigger	3030
		3031	cf::player
		3032	peaceful
		3033
		3034	cf::map
		3035	trigger
2063		3036
2064	=cut	3037	=cut
2065		3038
2066	for (	3039	for (
2067	["cf::object" => qw(contr pay_amount pay_player map)],	3040	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3041	insert remove inv name archname title slaying race
		3042	decrease_ob_nr destroy)],
2068	["cf::object::player" => qw(player)],	3043	["cf::object::player" => qw(player)],
2069	["cf::player" => qw(peaceful)],	3044	["cf::player" => qw(peaceful)],
2070	["cf::map" => qw(trigger)],	3045	["cf::map" => qw(trigger)],
2071	) {	3046	) {
2072	no strict 'refs';	3047	no strict 'refs';
…		…
2143	=back	3118	=back
2144		3119
2145	=cut	3120	=cut
2146		3121
2147	#############################################################################	3122	#############################################################################
		3123	# the server's init and main functions
2148		3124
2149	=head2 EXTENSION DATABASE SUPPORT	3125	sub load_facedata($) {
		3126	my ($path) = @_;
2150		3127
2151	Crossfire maintains a very simple database for extension use. It can	3128	# HACK to clear player env face cache, we need some signal framework
2152	currently store anything that can be serialised using Storable, which	3129	# for this (global event?)
2153	excludes objects.	3130	%ext::player_env::MUSIC_FACE_CACHE = ();
2154		3131
2155	The parameter C<$family> should best start with the name of the extension	3132	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2156	using it, it should be unique.
2157		3133
2158	=over 4	3134	warn "loading facedata from $path\n";
2159		3135
2160	=item $hashref = cf::db_get $family	3136	my $facedata;
		3137	0 < aio_load $path, $facedata
		3138	or die "$path: $!";
2161		3139
2162	Return a hashref for use by the extension C<$family>, which can be	3140	$facedata = Coro::Storable::thaw $facedata;
2163	modified. After modifications, you have to call C<cf::db_dirty> or
2164	C<cf::db_sync>.
2165		3141
2166	=item $value = cf::db_get $family => $key	3142	$facedata->{version} == 2
		3143	or cf::cleanup "$path: version mismatch, cannot proceed.";
2167		3144
2168	Returns a single value from the database	3145	# patch in the exptable
2169		3146	$facedata->{resource}{"res/exp_table"} = {
2170	=item cf::db_put $family => $hashref	3147	type => FT_RSRC,
2171		3148	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2172	Stores the given family hashref into the database. Updates are delayed, if
2173	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2174
2175	=item cf::db_put $family => $key => $value
2176
2177	Stores the given C<$value> in the family hash. Updates are delayed, if you
2178	want the data to be synced to disk immediately, use C<cf::db_sync>.
2179
2180	=item cf::db_dirty
2181
2182	Marks the database as dirty, to be updated at a later time.
2183
2184	=item cf::db_sync
2185
2186	Immediately write the database to disk I<if it is dirty>.
2187
2188	=cut
2189
2190	our $DB;
2191
2192	{
2193	my $path = cf::localdir . "/database.pst";
2194
2195	sub db_load() {
2196	$DB = stat $path ? Storable::retrieve $path : { };
2197	}	3149	};
		3150	cf::cede_to_tick;
2198		3151
2199	my $pid;
2200
2201	sub db_save() {
2202	waitpid $pid, 0 if $pid;
2203	if (0 == ($pid = fork)) {
2204	$DB->{_meta}{version} = 1;
2205	Storable::nstore $DB, "$path~";
2206	rename "$path~", $path;
2207	cf::_exit 0 if defined $pid;
2208	}
2209	}	3152	{
		3153	my $faces = $facedata->{faceinfo};
2210		3154
2211	my $dirty;	3155	while (my ($face, $info) = each %$faces) {
		3156	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2212		3157
2213	sub db_sync() {	3158	cf::face::set_visibility $idx, $info->{visibility};
2214	db_save if $dirty;	3159	cf::face::set_magicmap $idx, $info->{magicmap};
2215	undef $dirty;	3160	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2216	}	3161	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2217		3162
2218	my $idle = Event->idle (	3163	cf::cede_to_tick;
2219	reentrant => 0,
2220	min => 10,
2221	max => 20,
2222	repeat => 0,
2223	data => WF_AUTOCANCEL,
2224	cb => \&db_sync,
2225	);
2226
2227	sub db_dirty() {
2228	$dirty = 1;
2229	$idle->start;
2230	}
2231
2232	sub db_get($;$) {
2233	@_ >= 2
2234	? $DB->{$_[0]}{$_[1]}
2235	: ($DB->{$_[0]} ||= { })
2236	}
2237
2238	sub db_put($$;$) {
2239	if (@_ >= 3) {
2240	$DB->{$_[0]}{$_[1]} = $_[2];
2241	} else {
2242	$DB->{$_[0]} = $_[1];
2243	}
2244	db_dirty;
2245	}
2246
2247	cf::global->attach (
2248	prio => 10000,
2249	on_cleanup => sub {
2250	db_sync;
2251	},	3164	}
2252	);
2253	}
2254		3165
2255	#############################################################################	3166	while (my ($face, $info) = each %$faces) {
2256	# the server's main()	3167	next unless $info->{smooth};
2257		3168
2258	sub cfg_load {	3169	my $idx = cf::face::find $face
		3170	or next;
		3171
		3172	if (my $smooth = cf::face::find $info->{smooth}) {
		3173	cf::face::set_smooth $idx, $smooth;
		3174	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3175	} else {
		3176	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3177	}
		3178
		3179	cf::cede_to_tick;
		3180	}
		3181	}
		3182
		3183	{
		3184	my $anims = $facedata->{animinfo};
		3185
		3186	while (my ($anim, $info) = each %$anims) {
		3187	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3188	cf::cede_to_tick;
		3189	}
		3190
		3191	cf::anim::invalidate_all; # d'oh
		3192	}
		3193
		3194	{
		3195	# TODO: for gcfclient pleasure, we should give resources
		3196	# that gcfclient doesn't grok a >10000 face index.
		3197	my $res = $facedata->{resource};
		3198
		3199	while (my ($name, $info) = each %$res) {
		3200	if (defined $info->{type}) {
		3201	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3202	my $data;
		3203
		3204	if ($info->{type} & 1) {
		3205	# prepend meta info
		3206
		3207	my $meta = $enc->encode ({
		3208	name => $name,
		3209	%{ $info->{meta} || {} },
		3210	});
		3211
		3212	$data = pack "(w/a*)*", $meta, $info->{data};
		3213	} else {
		3214	$data = $info->{data};
		3215	}
		3216
		3217	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3218	cf::face::set_type $idx, $info->{type};
		3219	} else {
		3220	$RESOURCE{$name} = $info;
		3221	}
		3222
		3223	cf::cede_to_tick;
		3224	}
		3225	}
		3226
		3227	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3228
		3229	1
		3230	}
		3231
		3232	cf::global->attach (on_resource_update => sub {
		3233	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3234	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3235
		3236	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3237	my $sound = $soundconf->{compat}[$_]
		3238	or next;
		3239
		3240	my $face = cf::face::find "sound/$sound->[1]";
		3241	cf::sound::set $sound->[0] => $face;
		3242	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3243	}
		3244
		3245	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3246	my $face = cf::face::find "sound/$v";
		3247	cf::sound::set $k => $face;
		3248	}
		3249	}
		3250	});
		3251
		3252	register_exticmd fx_want => sub {
		3253	my ($ns, $want) = @_;
		3254
		3255	while (my ($k, $v) = each %$want) {
		3256	$ns->fx_want ($k, $v);
		3257	}
		3258	};
		3259
		3260	sub reload_regions {
		3261	# HACK to clear player env face cache, we need some signal framework
		3262	# for this (global event?)
		3263	%ext::player_env::MUSIC_FACE_CACHE = ();
		3264
		3265	load_resource_file "$MAPDIR/regions"
		3266	or die "unable to load regions file\n";
		3267
		3268	for (cf::region::list) {
		3269	$_->{match} = qr/$_->{match}/
		3270	if exists $_->{match};
		3271	}
		3272	}
		3273
		3274	sub reload_facedata {
		3275	load_facedata "$DATADIR/facedata"
		3276	or die "unable to load facedata\n";
		3277	}
		3278
		3279	sub reload_archetypes {
		3280	load_resource_file "$DATADIR/archetypes"
		3281	or die "unable to load archetypes\n";
		3282	#d# NEED to laod twice to resolve forward references
		3283	# this really needs to be done in an extra post-pass
		3284	# (which needs to be synchronous, so solve it differently)
		3285	load_resource_file "$DATADIR/archetypes"
		3286	or die "unable to load archetypes\n";
		3287	}
		3288
		3289	sub reload_treasures {
		3290	load_resource_file "$DATADIR/treasures"
		3291	or die "unable to load treasurelists\n";
		3292	}
		3293
		3294	sub reload_resources {
		3295	warn "reloading resource files...\n";
		3296
		3297	reload_regions;
		3298	reload_facedata;
		3299	#reload_archetypes;#d#
		3300	reload_archetypes;
		3301	reload_treasures;
		3302
		3303	warn "finished reloading resource files\n";
		3304	}
		3305
		3306	sub init {
		3307	reload_resources;
		3308	}
		3309
		3310	sub reload_config {
2259	open my $fh, "<:utf8", cf::confdir . "/config"	3311	open my $fh, "<:utf8", "$CONFDIR/config"
2260	or return;	3312	or return;
2261		3313
2262	local $/;	3314	local $/;
2263	*CFG = YAML::Syck::Load <$fh>;	3315	*CFG = YAML::Load <$fh>;
2264		3316
2265	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3317	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2266		3318
2267	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3319	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2268	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3320	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2279	sub main {	3331	sub main {
2280	# we must not ever block the main coroutine	3332	# we must not ever block the main coroutine
2281	local $Coro::idle = sub {	3333	local $Coro::idle = sub {
2282	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3334	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2283	(async {	3335	(async {
2284	Event::one_event;	3336	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3337	EV::loop EV::LOOP_ONESHOT;
2285	})->prio (Coro::PRIO_MAX);	3338	})->prio (Coro::PRIO_MAX);
2286	};	3339	};
2287		3340
2288	cfg_load;	3341	reload_config;
2289	db_load;	3342	db_init;
2290	load_extensions;	3343	load_extensions;
2291		3344
2292	$TICK_WATCHER->start;	3345	$TICK_WATCHER->start;
		3346	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2293	Event::loop;	3347	EV::loop;
2294	}	3348	}
2295		3349
2296	#############################################################################	3350	#############################################################################
2297	# initialisation and cleanup	3351	# initialisation and cleanup
2298		3352
2299	# install some emergency cleanup handlers	3353	# install some emergency cleanup handlers
2300	BEGIN {	3354	BEGIN {
		3355	our %SIGWATCHER = ();
2301	for my $signal (qw(INT HUP TERM)) {	3356	for my $signal (qw(INT HUP TERM)) {
2302	Event->signal (	3357	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2303	reentrant => 0,
2304	data => WF_AUTOCANCEL,
2305	signal => $signal,
2306	prio => 0,
2307	cb => sub {
2308	cf::cleanup "SIG$signal";	3358	cf::cleanup "SIG$signal";
2309	},
2310	);	3359	};
		3360	}
		3361	}
		3362
		3363	sub write_runtime {
		3364	my $runtime = "$LOCALDIR/runtime";
		3365
		3366	# first touch the runtime file to show we are still running:
		3367	# the fsync below can take a very very long time.
		3368
		3369	IO::AIO::aio_utime $runtime, undef, undef;
		3370
		3371	my $guard = cf::lock_acquire "write_runtime";
		3372
		3373	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3374	or return;
		3375
		3376	my $value = $cf::RUNTIME + 90 + 10;
		3377	# 10 is the runtime save interval, for a monotonic clock
		3378	# 60 allows for the watchdog to kill the server.
		3379
		3380	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3381	and return;
		3382
		3383	# always fsync - this file is important
		3384	aio_fsync $fh
		3385	and return;
		3386
		3387	# touch it again to show we are up-to-date
		3388	aio_utime $fh, undef, undef;
		3389
		3390	close $fh
		3391	or return;
		3392
		3393	aio_rename "$runtime~", $runtime
		3394	and return;
		3395
		3396	warn "runtime file written.\n";
		3397
2311	}	3398	1
2312	}	3399	}
2313		3400
2314	sub emergency_save() {	3401	sub emergency_save() {
2315	my $freeze_guard = cf::freeze_mainloop;	3402	my $freeze_guard = cf::freeze_mainloop;
2316		3403
…		…
2322	# and maps saved/destroyed asynchronously.	3409	# and maps saved/destroyed asynchronously.
2323	warn "begin emergency player save\n";	3410	warn "begin emergency player save\n";
2324	for my $login (keys %cf::PLAYER) {	3411	for my $login (keys %cf::PLAYER) {
2325	my $pl = $cf::PLAYER{$login} or next;	3412	my $pl = $cf::PLAYER{$login} or next;
2326	$pl->valid or next;	3413	$pl->valid or next;
		3414	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2327	$pl->save;	3415	$pl->save;
2328	}	3416	}
2329	warn "end emergency player save\n";	3417	warn "end emergency player save\n";
2330		3418
2331	warn "begin emergency map save\n";	3419	warn "begin emergency map save\n";
…		…
2333	my $map = $cf::MAP{$path} or next;	3421	my $map = $cf::MAP{$path} or next;
2334	$map->valid or next;	3422	$map->valid or next;
2335	$map->save;	3423	$map->save;
2336	}	3424	}
2337	warn "end emergency map save\n";	3425	warn "end emergency map save\n";
		3426
		3427	warn "begin emergency database checkpoint\n";
		3428	BDB::db_env_txn_checkpoint $DB_ENV;
		3429	warn "end emergency database checkpoint\n";
2338	};	3430	};
2339		3431
2340	warn "leave emergency perl save\n";	3432	warn "leave emergency perl save\n";
2341	}	3433	}
2342		3434
		3435	sub post_cleanup {
		3436	my ($make_core) = @_;
		3437
		3438	warn Carp::longmess "post_cleanup backtrace"
		3439	if $make_core;
		3440	}
		3441
2343	sub reload() {	3442	sub do_reload_perl() {
2344	# can/must only be called in main	3443	# can/must only be called in main
2345	if ($Coro::current != $Coro::main) {	3444	if ($Coro::current != $Coro::main) {
2346	warn "can only reload from main coroutine";	3445	warn "can only reload from main coroutine";
2347	return;	3446	return;
2348	}	3447	}
2349		3448
2350	warn "reloading...";	3449	warn "reloading...";
2351		3450
2352	warn "cancelling server ticker";	3451	warn "entering sync_job";
2353	$TICK_WATCHER->cancel;
2354		3452
		3453	cf::sync_job {
		3454	cf::write_runtime; # external watchdog should not bark
2355	cf::emergency_save;	3455	cf::emergency_save;
		3456	cf::write_runtime; # external watchdog should not bark
2356		3457
2357	eval {	3458	warn "syncing database to disk";
		3459	BDB::db_env_txn_checkpoint $DB_ENV;
		3460
2358	# if anything goes wrong in here, we should simply crash as we already saved	3461	# if anything goes wrong in here, we should simply crash as we already saved
2359
2360	warn "syncing database to disk";
2361	cf::db_sync;
2362
2363	warn "cancelling all WF_AUTOCANCEL watchers";
2364	for (Event::all_watchers) {
2365	$_->cancel if $_->data & WF_AUTOCANCEL;
2366	}
2367		3462
2368	warn "flushing outstanding aio requests";	3463	warn "flushing outstanding aio requests";
2369	for (;;) {	3464	for (;;) {
		3465	BDB::flush;
2370	IO::AIO::flush;	3466	IO::AIO::flush;
2371	Coro::cede;	3467	Coro::cede_notself;
2372	last unless IO::AIO::nreqs;	3468	last unless IO::AIO::nreqs || BDB::nreqs;
2373	warn "iterate...";	3469	warn "iterate...";
2374	}	3470	}
		3471
		3472	++$RELOAD;
2375		3473
2376	warn "cancelling all extension coros";	3474	warn "cancelling all extension coros";
2377	$_->cancel for values %EXT_CORO;	3475	$_->cancel for values %EXT_CORO;
2378	%EXT_CORO = ();	3476	%EXT_CORO = ();
2379		3477
2380	warn "removing commands";	3478	warn "removing commands";
2381	%COMMAND = ();	3479	%COMMAND = ();
2382		3480
2383	warn "removing ext commands";	3481	warn "removing ext/exti commands";
2384	%EXTCMD = ();	3482	%EXTCMD = ();
		3483	%EXTICMD = ();
2385		3484
2386	warn "unloading/nuking all extensions";	3485	warn "unloading/nuking all extensions";
2387	for my $pkg (@EXTS) {	3486	for my $pkg (@EXTS) {
2388	warn "... unloading $pkg";	3487	warn "... unloading $pkg";
2389		3488
…		…
2419	Symbol::delete_package "safe::$_"	3518	Symbol::delete_package "safe::$_"
2420	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3519	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2421		3520
2422	warn "unloading cf.pm \"a bit\"";	3521	warn "unloading cf.pm \"a bit\"";
2423	delete $INC{"cf.pm"};	3522	delete $INC{"cf.pm"};
		3523	delete $INC{"cf/pod.pm"};
2424		3524
2425	# don't, removes xs symbols, too,	3525	# don't, removes xs symbols, too,
2426	# and global variables created in xs	3526	# and global variables created in xs
2427	#Symbol::delete_package __PACKAGE__;	3527	#Symbol::delete_package __PACKAGE__;
2428		3528
…		…
2431	warn "reloading cf.pm";	3531	warn "reloading cf.pm";
2432	require cf;	3532	require cf;
2433	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3533	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2434		3534
2435	warn "loading config and database again";	3535	warn "loading config and database again";
2436	cf::cfg_load;	3536	cf::reload_config;
2437	cf::db_load;
2438		3537
2439	warn "loading extensions";	3538	warn "loading extensions";
2440	cf::load_extensions;	3539	cf::load_extensions;
2441		3540
2442	warn "reattaching attachments to objects/players";	3541	warn "reattaching attachments to objects/players";
2443	_global_reattach;	3542	_global_reattach; # objects, sockets
2444	warn "reattaching attachments to maps";	3543	warn "reattaching attachments to maps";
2445	reattach $_ for values %MAP;	3544	reattach $_ for values %MAP;
		3545	warn "reattaching attachments to players";
		3546	reattach $_ for values %PLAYER;
2446		3547
2447	warn "restarting server ticker";	3548	warn "leaving sync_job";
2448		3549
2449	$TICK_WATCHER->start;	3550	1
2450	};	3551	} or do {
2451
2452	if ($@) {
2453	warn $@;	3552	warn $@;
2454	warn "error while reloading, exiting.";	3553	warn "error while reloading, exiting.";
2455	exit 1;	3554	exit 1;
2456	}	3555	};
2457		3556
2458	warn "reloaded";	3557	warn "reloaded";
2459	};	3558	};
2460		3559
2461	our $RELOAD_WATCHER; # used only during reload	3560	our $RELOAD_WATCHER; # used only during reload
2462		3561
		3562	sub reload_perl() {
		3563	# doing reload synchronously and two reloads happen back-to-back,
		3564	# coro crashes during coro_state_free->destroy here.
		3565
		3566	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3567	do_reload_perl;
		3568	undef $RELOAD_WATCHER;
		3569	};
		3570	}
		3571
2463	register_command "reload" => sub {	3572	register_command "reload" => sub {
2464	my ($who, $arg) = @_;	3573	my ($who, $arg) = @_;
2465		3574
2466	if ($who->flag (FLAG_WIZ)) {	3575	if ($who->flag (FLAG_WIZ)) {
2467	$who->message ("reloading server.");	3576	$who->message ("reloading server.");
2468		3577	async {
2469	# doing reload synchronously and two reloads happen back-to-back,	3578	$Coro::current->{desc} = "perl_reload";
2470	# coro crashes during coro_state_free->destroy here.
2471
2472	$RELOAD_WATCHER ||= Event->timer (
2473	reentrant => 0,
2474	after => 0,
2475	data => WF_AUTOCANCEL,
2476	cb => sub {
2477	reload;	3579	reload_perl;
2478	undef $RELOAD_WATCHER;
2479	},
2480	);	3580	};
2481	}	3581	}
2482	};	3582	};
2483		3583
2484	unshift @INC, $LIBDIR;	3584	unshift @INC, $LIBDIR;
2485		3585
2486	my $bug_warning = 0;	3586	my $bug_warning = 0;
2487		3587
2488	$TICK_WATCHER = Event->timer (	3588	our @WAIT_FOR_TICK;
2489	reentrant => 0,	3589	our @WAIT_FOR_TICK_BEGIN;
2490	parked => 1,	3590
2491	prio => 0,	3591	sub wait_for_tick {
2492	at => $NEXT_TICK || $TICK,	3592	return unless $TICK_WATCHER->is_active;
2493	data => WF_AUTOCANCEL,	3593	return if $Coro::current == $Coro::main;
2494	cb => sub {	3594
		3595	my $signal = new Coro::Signal;
		3596	push @WAIT_FOR_TICK, $signal;
		3597	$signal->wait;
		3598	}
		3599
		3600	sub wait_for_tick_begin {
		3601	return unless $TICK_WATCHER->is_active;
		3602	return if $Coro::current == $Coro::main;
		3603
		3604	my $signal = new Coro::Signal;
		3605	push @WAIT_FOR_TICK_BEGIN, $signal;
		3606	$signal->wait;
		3607	}
		3608
		3609	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
2495	if ($Coro::current != $Coro::main) {	3610	if ($Coro::current != $Coro::main) {
2496	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3611	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2497	unless ++$bug_warning > 10;	3612	unless ++$bug_warning > 10;
2498	return;	3613	return;
2499	}	3614	}
2500		3615
2501	$NOW = Event::time;	3616	$NOW = $tick_start = EV::now;
2502		3617
2503	cf::server_tick; # one server iteration	3618	cf::server_tick; # one server iteration
		3619
2504	$RUNTIME += $TICK;	3620	$RUNTIME += $TICK;
2505	$NEXT_TICK += $TICK;	3621	$NEXT_TICK = $_[0]->at;
2506		3622
2507	$WAIT_FOR_TICK->broadcast;	3623	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2508	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3624	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2509		3625	Coro::async_pool {
2510	Event::sweep;	3626	$Coro::current->{desc} = "runtime saver";
2511	Coro::cede_notself;
2512
2513	# my $AFTER = Event::time;
2514	# warn $AFTER - $NOW;#d#
2515
2516	# if we are delayed by four ticks or more, skip them all
2517	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2518
2519	$TICK_WATCHER->at ($NEXT_TICK);
2520	$TICK_WATCHER->start;
2521	},
2522	);
2523
2524	IO::AIO::max_poll_time $TICK * 0.1;
2525
2526	undef $Coro::AIO::WATCHER;
2527	$AIO_POLL_WATCHER = Event->io (
2528	reentrant => 0,
2529	fd => IO::AIO::poll_fileno,
2530	poll => 'r',
2531	prio => 6,
2532	data => WF_AUTOCANCEL,
2533	cb => \&IO::AIO::poll_cb,
2534	);
2535
2536	$WRITE_RUNTIME_WATCHER = Event->timer (
2537	reentrant => 0,
2538	data => WF_AUTOCANCEL,
2539	after => 1,
2540	interval => 10,
2541	prio => 6, # keep it lowest so it acts like a watchdog
2542	cb => Coro::unblock_sub {
2543	write_runtime	3627	write_runtime
2544	or warn "ERROR: unable to write runtime file: $!";	3628	or warn "ERROR: unable to write runtime file: $!";
		3629	};
2545	},	3630	}
2546	);	3631
		3632	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3633	$sig->send;
		3634	}
		3635	while (my $sig = shift @WAIT_FOR_TICK) {
		3636	$sig->send;
		3637	}
		3638
		3639	$LOAD = ($NOW - $tick_start) / $TICK;
		3640	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3641
		3642	_post_tick;
		3643	};
		3644	$TICK_WATCHER->priority (EV::MAXPRI);
		3645
		3646	{
		3647	# configure BDB
		3648
		3649	BDB::min_parallel 8;
		3650	BDB::max_poll_reqs $TICK * 0.1;
		3651	$Coro::BDB::WATCHER->priority (1);
		3652
		3653	unless ($DB_ENV) {
		3654	$DB_ENV = BDB::db_env_create;
		3655	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3656	| BDB::LOG_AUTOREMOVE, 1);
		3657	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3658	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3659
		3660	cf::sync_job {
		3661	eval {
		3662	BDB::db_env_open
		3663	$DB_ENV,
		3664	$BDBDIR,
		3665	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3666	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3667	0666;
		3668
		3669	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3670	};
		3671
		3672	cf::cleanup "db_env_open(db): $@" if $@;
		3673	};
		3674	}
		3675
		3676	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3677	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3678	};
		3679	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3680	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3681	};
		3682	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3683	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3684	};
		3685	}
		3686
		3687	{
		3688	# configure IO::AIO
		3689
		3690	IO::AIO::min_parallel 8;
		3691	IO::AIO::max_poll_time $TICK * 0.1;
		3692	$Coro::AIO::WATCHER->priority (1);
		3693	}
		3694
		3695	my $_log_backtrace;
		3696
		3697	sub _log_backtrace {
		3698	my ($msg, @addr) = @_;
		3699
		3700	$msg =~ s/\n//;
		3701
		3702	# limit the # of concurrent backtraces
		3703	if ($_log_backtrace < 2) {
		3704	++$_log_backtrace;
		3705	async {
		3706	$Coro::current->{desc} = "abt $msg";
		3707
		3708	my @bt = fork_call {
		3709	@addr = map { sprintf "%x", $_ } @addr;
		3710	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3711	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3712	or die "addr2line: $!";
		3713
		3714	my @funcs;
		3715	my @res = <$fh>;
		3716	chomp for @res;
		3717	while (@res) {
		3718	my ($func, $line) = splice @res, 0, 2, ();
		3719	push @funcs, "[$func] $line";
		3720	}
		3721
		3722	@funcs
		3723	};
		3724
		3725	LOG llevInfo, "[ABT] $msg\n";
		3726	LOG llevInfo, "[ABT] $_\n" for @bt;
		3727	--$_log_backtrace;
		3728	};
		3729	} else {
		3730	LOG llevInfo, "[ABT] $msg\n";
		3731	LOG llevInfo, "[ABT] [suppressed]\n";
		3732	}
		3733	}
		3734
		3735	# load additional modules
		3736	use cf::pod;
2547		3737
2548	END { cf::emergency_save }	3738	END { cf::emergency_save }
2549		3739
2550	1	3740	1
2551		3741

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