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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.169 by root, Sun Jan 14 01:09:46 2007 UTC vs.
Revision 1.404 by root, Mon Dec 17 07:27:58 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV 1.86;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
		28	use BDB ();
20	use Data::Dumper;	29	use Data::Dumper;
21	use Digest::MD5;	30	use Digest::MD5;
22	use Fcntl;	31	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	32	use YAML::Syck ();
		33	use IO::AIO 2.51 ();
25	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
26		37
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	# configure various modules to our taste
28		39	#
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	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
30		43
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
33		46
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
38		53
39	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
43		59
		60	our $RELOAD; # number of reloads so far
44	our @EVENT;	61	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		62
47	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	76	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	79	our $NEXT_TICK;
52	our $NOW;	80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $BDB_DEADLOCK_WATCHER;
		84	our $BDB_CHECKPOINT_WATCHER;
		85	our $BDB_TRICKLE_WATCHER;
		86	our $DB_ENV;
53		87
54	our %CFG;	88	our %CFG;
55		89
56	our $UPTIME; $UPTIME ||= time;	90	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	91	our $RUNTIME;
		92	our $NOW;
58		93
59	our %PLAYER; # all users	94	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	95	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	96	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		97
67	# used to convert map paths into valid unix filenames by replacing / by ∕	98	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
		104
70	binmode STDOUT;	105	binmode STDOUT;
71	binmode STDERR;	106	binmode STDERR;
72		107
73	# read virtual server time, if available	108	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
78	}	113	}
79		114
80	mkdir cf::localdir;	115	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		117
86	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
		119
		120	sub cf::map::normalise;
87		121
88	#############################################################################	122	#############################################################################
89		123
90	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
91		125
…		…
98	=item $cf::RUNTIME	132	=item $cf::RUNTIME
99		133
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	135	every server tick.
102		136
103	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		140
105	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
107		145
108	=item $cf::NOW	146	=item $cf::NOW
109		147
110	The time of the last (current) server tick.	148	The time of the last (current) server tick.
111		149
112	=item $cf::TICK	150	=item $cf::TICK
113		151
114	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
115		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
		163
116	=item %cf::CFG	164	=item %cf::CFG
117		165
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	167	from wherever your confdir points to.
120		168
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	169	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		170
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	171	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	172	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	173	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.	174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
127		180
128	=back	181	=back
129		182
130	=cut	183	=cut
131		184
132	BEGIN {	185	BEGIN {
133	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	187	my $msg = join "", @_;
135	utf8::encode $msg;
136		188
137	$msg .= "\n"	189	$msg .= "\n"
138	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
139		193
140	LOG llevError, $msg;	194	LOG llevError, $msg;
141	};	195	};
142	}	196	}
143		197
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		205
151	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	207	# within the Safe compartment.
153	for my $pkg (qw(	208	for my $pkg (qw(
154	cf::global cf::attachable	209	cf::global cf::attachable
…		…
159	)) {	214	)) {
160	no strict 'refs';	215	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	216	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	217	}
163		218
164	$Event::DIED = sub {	219	$EV::DIED = sub {
165	warn "error in event callback: @_";	220	warn "error in event callback: @_";
166	};	221	};
		222
		223	#############################################################################
167		224
168	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
169		226
170	=over 4	227	=over 4
171		228
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	248	$d
192	} || "[unable to dump $_[0]: '$@']";	249	} || "[unable to dump $_[0]: '$@']";
193	}	250	}
194		251
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	252	=item $ref = cf::decode_json $json
198		253
199	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
200		255
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	256	=item $json = cf::encode_json $ref
209		257
210	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
211		259
212	=cut	260	=cut
213		261
214	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
216	JSON::Syck::Dump $_[0]	264	sub encode_json($) { $json_coder->encode ($_[0]) }
217	}	265	sub decode_json($) { $json_coder->decode ($_[0]) }
218		266
219	=item cf::lock_wait $string	267	=item cf::lock_wait $string
220		268
221	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
222		270
…		…
225	Wait until the given lock is available and then acquires it and returns	273	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
228	returned.	276	returned.
229		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
230	Lock names should begin with a unique identifier (for example, cf::map::find	281	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
232		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
233	=cut	288	=cut
234		289
235	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
236		292
237	sub lock_wait($) {	293	sub lock_wait($) {
238	my ($key) = @_;	294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
239		300
240	# wait for lock, if any	301	# wait for lock, if any
241	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;	304	Coro::schedule;
…		…
249		310
250	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
251	lock_wait $key;	312	lock_wait $key;
252		313
253	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
254		316
255	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
256	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
258	}	321	}
259	}	322	}
260		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
261	sub freeze_mainloop {	330	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
263		332
264	my $guard = Coro::guard {	333	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	334	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	335	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
270	$guard	337	$guard
		338	}
		339
		340	=item cf::periodic $interval, $cb
		341
		342	Like EV::periodic, but randomly selects a starting point so that the actions
		343	get spread over timer.
		344
		345	=cut
		346
		347	sub periodic($$) {
		348	my ($interval, $cb) = @_;
		349
		350	my $start = rand List::Util::min 180, $interval;
		351
		352	EV::periodic $start, $interval, 0, $cb
		353	}
		354
		355	=item cf::get_slot $time[, $priority[, $name]]
		356
		357	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		358	This call blocks and returns only when you have at least C<$time> seconds
		359	of cpu time till the next tick. The slot is only valid till the next cede.
		360
		361	The optional C<$name> can be used to identify the job to run. It might be
		362	used for statistical purposes and should identify the same time-class.
		363
		364	Useful for short background jobs.
		365
		366	=cut
		367
		368	our @SLOT_QUEUE;
		369	our $SLOT_QUEUE;
		370
		371	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		372	$SLOT_QUEUE = Coro::async {
		373	$Coro::current->desc ("timeslot manager");
		374
		375	my $signal = new Coro::Signal;
		376
		377	while () {
		378	next_job:
		379	my $avail = cf::till_tick;
		380	if ($avail > 0.01) {
		381	for (0 .. $#SLOT_QUEUE) {
		382	if ($SLOT_QUEUE[$_][0] < $avail) {
		383	my $job = splice @SLOT_QUEUE, $_, 1, ();
		384	$job->[2]->send;
		385	Coro::cede;
		386	goto next_job;
		387	}
		388	}
		389	}
		390
		391	if (@SLOT_QUEUE) {
		392	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		393	push @cf::WAIT_FOR_TICK, $signal;
		394	$signal->wait;
		395	} else {
		396	Coro::schedule;
		397	}
		398	}
		399	};
		400
		401	sub get_slot($;$$) {
		402	my ($time, $pri, $name) = @_;
		403
		404	$time = $TICK * .6 if $time > $TICK * .6;
		405	my $sig = new Coro::Signal;
		406
		407	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		408	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		409	$SLOT_QUEUE->ready;
		410	$sig->wait;
271	}	411	}
272		412
273	=item cf::async { BLOCK }	413	=item cf::async { BLOCK }
274		414
275	Currently the same as Coro::async_pool, meaning you cannot use	415	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		420
281	BEGIN { *async = \&Coro::async_pool }	421	BEGIN { *async = \&Coro::async_pool }
282		422
283	=item cf::sync_job { BLOCK }	423	=item cf::sync_job { BLOCK }
284		424
285	The design of crossfire+ requires that the main coro ($Coro::main) is	425	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	426	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	427	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		428	acceptable.
288		429
289	If it must be done, put the blocking parts into C<sync_job>. This will run	430	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	431	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	432	server will be frozen during this time, so the block should either finish
292	fast or be very important.	433	fast or be very important.
…		…
295		436
296	sub sync_job(&) {	437	sub sync_job(&) {
297	my ($job) = @_;	438	my ($job) = @_;
298		439
299	if ($Coro::current == $Coro::main) {	440	if ($Coro::current == $Coro::main) {
		441	my $time = EV::time;
		442
300	# this is the main coro, too bad, we have to block	443	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	444	# till the operation succeeds, freezing the server :/
302		445
		446	LOG llevError, Carp::longmess "sync job";#d#
		447
303	# TODO: use suspend/resume instead	448	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	449	# (but this is cancel-safe)
305	my $freeze_guard = freeze_mainloop;	450	my $freeze_guard = freeze_mainloop;
306		451
307	my $busy = 1;	452	my $busy = 1;
308	my @res;	453	my @res;
309		454
310	(async {	455	(async {
		456	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	457	@res = eval { $job->() };
312	warn $@ if $@;	458	warn $@ if $@;
313	undef $busy;	459	undef $busy;
314	})->prio (Coro::PRIO_MAX);	460	})->prio (Coro::PRIO_MAX);
315		461
316	while ($busy) {	462	while ($busy) {
317	Coro::cede or Event::one_event;	463	if (Coro::nready) {
		464	Coro::cede_notself;
		465	} else {
		466	EV::loop EV::LOOP_ONESHOT;
318	}	467	}
		468	}
		469
		470	$time = EV::time - $time;
		471
		472	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		473	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		474
		475	$tick_start += $time; # do not account sync jobs to server load
319		476
320	wantarray ? @res : $res[0]	477	wantarray ? @res : $res[0]
321	} else {	478	} else {
322	# we are in another coroutine, how wonderful, everything just works	479	# we are in another coroutine, how wonderful, everything just works
323		480
…		…
343	$EXT_CORO{$coro+0} = $coro;	500	$EXT_CORO{$coro+0} = $coro;
344		501
345	$coro	502	$coro
346	}	503	}
347		504
348	sub write_runtime {	505	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		506
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	507	Executes the given code block with the given arguments in a seperate
352	or return;	508	process, returning the results. Everything must be serialisable with
		509	Coro::Storable. May, of course, block. Note that the executed sub may
		510	never block itself or use any form of event handling.
353		511
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	512	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		513
358	aio_fsync $fh	514	sub fork_call(&@) {
359	and return;	515	my ($cb, @args) = @_;
360		516
361	close $fh	517	# we seemingly have to make a local copy of the whole thing,
362	or return;	518	# otherwise perl prematurely frees the stuff :/
		519	# TODO: investigate and fix (likely this will be rather laborious)
363		520
364	aio_rename "$runtime~", $runtime	521	my @res = Coro::Util::fork_eval {
365	and return;	522	reset_signals;
		523	&$cb
		524	}, @args;
366		525
		526	wantarray ? @res : $res[-1]
		527	}
		528
		529	=item $value = cf::db_get $family => $key
		530
		531	Returns a single value from the environment database.
		532
		533	=item cf::db_put $family => $key => $value
		534
		535	Stores the given C<$value> in the family. It can currently store binary
		536	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		537
		538	=item $db = cf::db_table "name"
		539
		540	Create and/or open a new database table. The string must not be "db" and must be unique
		541	within each server.
		542
		543	=cut
		544
		545	sub db_table($) {
		546	my ($name) = @_;
		547	my $db = BDB::db_create $DB_ENV;
		548
		549	eval {
		550	$db->set_flags (BDB::CHKSUM);
		551
		552	utf8::encode $name;
		553	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		554	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		555	cf::cleanup "db_open(db): $!" if $!;
		556	};
		557	cf::cleanup "db_open(db): $@" if $@;
		558
		559	$db
		560	}
		561
		562	our $DB;
		563
		564	sub db_init {
		565	cf::sync_job {
		566	$DB ||= db_table "db";
		567	};
		568	}
		569
		570	sub db_get($$) {
		571	my $key = "$_[0]/$_[1]";
		572
		573	cf::sync_job {
		574	BDB::db_get $DB, undef, $key, my $data;
		575
		576	$! ? ()
		577	: $data
367	1	578	}
		579	}
		580
		581	sub db_put($$$) {
		582	BDB::dbreq_pri 4;
		583	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		584	}
		585
		586	=item cf::cache $id => [$paths...], $processversion => $process
		587
		588	Generic caching function that returns the value of the resource $id,
		589	caching and regenerating as required.
		590
		591	This function can block.
		592
		593	=cut
		594
		595	sub cache {
		596	my ($id, $src, $processversion, $process) = @_;
		597
		598	my $meta =
		599	join "\x00",
		600	$processversion,
		601	map {
		602	aio_stat $_
		603	and Carp::croak "$_: $!";
		604
		605	($_, (stat _)[7,9])
		606	} @$src;
		607
		608	my $dbmeta = db_get cache => "$id/meta";
		609	if ($dbmeta ne $meta) {
		610	# changed, we may need to process
		611
		612	my @data;
		613	my $md5;
		614
		615	for (0 .. $#$src) {
		616	0 <= aio_load $src->[$_], $data[$_]
		617	or Carp::croak "$src->[$_]: $!";
		618	}
		619
		620	# if processing is expensive, check
		621	# checksum first
		622	if (1) {
		623	$md5 =
		624	join "\x00",
		625	$processversion,
		626	map {
		627	cf::cede_to_tick;
		628	($src->[$_], Digest::MD5::md5_hex $data[$_])
		629	} 0.. $#$src;
		630
		631
		632	my $dbmd5 = db_get cache => "$id/md5";
		633	if ($dbmd5 eq $md5) {
		634	db_put cache => "$id/meta", $meta;
		635
		636	return db_get cache => "$id/data";
		637	}
		638	}
		639
		640	my $t1 = Time::HiRes::time;
		641	my $data = $process->(\@data);
		642	my $t2 = Time::HiRes::time;
		643
		644	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		645
		646	db_put cache => "$id/data", $data;
		647	db_put cache => "$id/md5" , $md5;
		648	db_put cache => "$id/meta", $meta;
		649
		650	return $data;
		651	}
		652
		653	db_get cache => "$id/data"
		654	}
		655
		656	=item cf::datalog type => key => value, ...
		657
		658	Log a datalog packet of the given type with the given key-value pairs.
		659
		660	=cut
		661
		662	sub datalog($@) {
		663	my ($type, %kv) = @_;
		664	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	665	}
369		666
370	=back	667	=back
371		668
372	=cut	669	=cut
…		…
379	attach callbacks/event handlers (a collection of which is called an "attachment")	676	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	677	to it. All such attachable objects support the following methods.
381		678
382	In the following description, CLASS can be any of C<global>, C<object>	679	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	680	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	681	Deliantra).
385		682
386	=over 4	683	=over 4
387		684
388	=item $attachable->attach ($attachment, key => $value...)	685	=item $attachable->attach ($attachment, key => $value...)
389		686
…		…
503	our @CB_TYPE = (); # registry for type (cf-object class) based events	800	our @CB_TYPE = (); # registry for type (cf-object class) based events
504	our @CB_MAP = ();	801	our @CB_MAP = ();
505		802
506	my %attachment;	803	my %attachment;
507		804
		805	sub cf::attachable::thawer_merge {
		806	# simply override everything except _meta
		807	local $_[0]{_meta};
		808	%{$_[0]} = %{$_[1]};
		809	}
		810
508	sub _attach_cb($$$$) {	811	sub _attach_cb($$$$) {
509	my ($registry, $event, $prio, $cb) = @_;	812	my ($registry, $event, $prio, $cb) = @_;
510		813
511	use sort 'stable';	814	use sort 'stable';
512		815
…		…
546	$registry = $CB_TYPE[$object_type] ||= [];	849	$registry = $CB_TYPE[$object_type] ||= [];
547		850
548	} elsif ($type eq "subtype") {	851	} elsif ($type eq "subtype") {
549	defined $object_type or Carp::croak "subtype specified without type";	852	defined $object_type or Carp::croak "subtype specified without type";
550	my $object_subtype = shift @arg;	853	my $object_subtype = shift @arg;
551	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	854	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
552		855
553	} elsif ($type eq "package") {	856	} elsif ($type eq "package") {
554	my $pkg = shift @arg;	857	my $pkg = shift @arg;
555		858
556	while (my ($name, $id) = each %cb_id) {	859	while (my ($name, $id) = each %cb_id) {
…		…
585	_attach $registry, $klass, @attach;	888	_attach $registry, $klass, @attach;
586	}	889	}
587		890
588	$obj->{$name} = \%arg;	891	$obj->{$name} = \%arg;
589	} else {	892	} else {
590	warn "object uses attachment '$name' that is not available, postponing.\n";	893	warn "object uses attachment '$name' which is not available, postponing.\n";
591	}	894	}
592		895
593	$obj->{_attachment}{$name} = undef;	896	$obj->{_attachment}{$name} = undef;
594	}	897	}
595		898
…		…
597	if (ref $_[0]) {	900	if (ref $_[0]) {
598	_object_attach @_;	901	_object_attach @_;
599	} else {	902	} else {
600	_attach shift->_attach_registry, @_;	903	_attach shift->_attach_registry, @_;
601	}	904	}
		905	_recalc_want;
602	};	906	};
603		907
604	# all those should be optimised	908	# all those should be optimised
605	sub cf::attachable::detach {	909	sub cf::attachable::detach {
606	my ($obj, $name) = @_;	910	my ($obj, $name) = @_;
…		…
609	delete $obj->{_attachment}{$name};	913	delete $obj->{_attachment}{$name};
610	reattach ($obj);	914	reattach ($obj);
611	} else {	915	} else {
612	Carp::croak "cannot, currently, detach class attachments";	916	Carp::croak "cannot, currently, detach class attachments";
613	}	917	}
		918	_recalc_want;
614	};	919	};
615		920
616	sub cf::attachable::attached {	921	sub cf::attachable::attached {
617	my ($obj, $name) = @_;	922	my ($obj, $name) = @_;
618		923
…		…
633	";	938	";
634	die if $@;	939	die if $@;
635	}	940	}
636		941
637	our $override;	942	our $override;
638	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	943	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
639		944
640	sub override {	945	sub override {
641	$override = 1;	946	$override = 1;
642	@invoke_results = ();	947	@INVOKE_RESULTS = (@_);
643	}	948	}
644		949
645	sub do_invoke {	950	sub do_invoke {
646	my $event = shift;	951	my $event = shift;
647	my $callbacks = shift;	952	my $callbacks = shift;
648		953
649	@invoke_results = ();	954	@INVOKE_RESULTS = ();
650		955
651	local $override;	956	local $override;
652		957
653	for (@$callbacks) {	958	for (@$callbacks) {
654	eval { &{$_->[1]} };	959	eval { &{$_->[1]} };
…		…
671		976
672	Generate an object-specific event with the given arguments.	977	Generate an object-specific event with the given arguments.
673		978
674	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	979	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
675	removed in future versions), and there is no public API to access override	980	removed in future versions), and there is no public API to access override
676	results (if you must, access C<@cf::invoke_results> directly).	981	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
677		982
678	=back	983	=back
679		984
680	=cut	985	=cut
681		986
682	#############################################################################	987	#############################################################################
683	# object support	988	# object support
		989
		990	sub _object_equal($$);
		991	sub _object_equal($$) {
		992	my ($a, $b) = @_;
		993
		994	return 0 unless (ref $a) eq (ref $b);
		995
		996	if ("HASH" eq ref $a) {
		997	my @ka = keys %$a;
		998	my @kb = keys %$b;
		999
		1000	return 0 if @ka != @kb;
		1001
		1002	for (0 .. $#ka) {
		1003	return 0 unless $ka[$_] eq $kb[$_];
		1004	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1005	}
		1006
		1007	} elsif ("ARRAY" eq ref $a) {
		1008
		1009	return 0 if @$a != @$b;
		1010
		1011	for (0 .. $#$a) {
		1012	return 0 unless _object_equal $a->[$_], $b->[$_];
		1013	}
		1014
		1015	} elsif ($a ne $b) {
		1016	return 0;
		1017	}
		1018
		1019	1
		1020	}
		1021
		1022	our $SLOW_MERGES;#d#
		1023	sub _can_merge {
		1024	my ($ob1, $ob2) = @_;
		1025
		1026	++$SLOW_MERGES;#d#
		1027
		1028	# we do the slow way here
		1029	return _object_equal $ob1, $ob2
		1030	}
684		1031
685	sub reattach {	1032	sub reattach {
686	# basically do the same as instantiate, without calling instantiate	1033	# basically do the same as instantiate, without calling instantiate
687	my ($obj) = @_;	1034	my ($obj) = @_;
688		1035
…		…
709	cf::attachable->attach (	1056	cf::attachable->attach (
710	prio => -1000000,	1057	prio => -1000000,
711	on_instantiate => sub {	1058	on_instantiate => sub {
712	my ($obj, $data) = @_;	1059	my ($obj, $data) = @_;
713		1060
714	$data = from_json $data;	1061	$data = decode_json $data;
715		1062
716	for (@$data) {	1063	for (@$data) {
717	my ($name, $args) = @$_;	1064	my ($name, $args) = @$_;
718		1065
719	$obj->attach ($name, %{$args || {} });	1066	$obj->attach ($name, %{$args || {} });
…		…
735	sub object_freezer_save {	1082	sub object_freezer_save {
736	my ($filename, $rdata, $objs) = @_;	1083	my ($filename, $rdata, $objs) = @_;
737		1084
738	sync_job {	1085	sync_job {
739	if (length $$rdata) {	1086	if (length $$rdata) {
		1087	utf8::decode (my $decname = $filename);
740	warn sprintf "saving %s (%d,%d)\n",	1088	warn sprintf "saving %s (%d,%d)\n",
741	$filename, length $$rdata, scalar @$objs;	1089	$decname, length $$rdata, scalar @$objs;
742		1090
743	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1091	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
744	chmod SAVE_MODE, $fh;	1092	chmod SAVE_MODE, $fh;
745	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1093	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
746	aio_fsync $fh;	1094	aio_fsync $fh if $cf::USE_FSYNC;
747	close $fh;	1095	close $fh;
748		1096
749	if (@$objs) {	1097	if (@$objs) {
750	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1098	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
751	chmod SAVE_MODE, $fh;	1099	chmod SAVE_MODE, $fh;
752	my $data = Storable::nfreeze { version => 1, objs => $objs };	1100	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
753	aio_write $fh, 0, (length $data), $data, 0;	1101	aio_write $fh, 0, (length $data), $data, 0;
754	aio_fsync $fh;	1102	aio_fsync $fh if $cf::USE_FSYNC;
755	close $fh;	1103	close $fh;
756	aio_rename "$filename.pst~", "$filename.pst";	1104	aio_rename "$filename.pst~", "$filename.pst";
757	}	1105	}
758	} else {	1106	} else {
759	aio_unlink "$filename.pst";	1107	aio_unlink "$filename.pst";
…		…
765	}	1113	}
766	} else {	1114	} else {
767	aio_unlink $filename;	1115	aio_unlink $filename;
768	aio_unlink "$filename.pst";	1116	aio_unlink "$filename.pst";
769	}	1117	}
770	}	1118	};
771	}	1119	}
772		1120
773	sub object_freezer_as_string {	1121	sub object_freezer_as_string {
774	my ($rdata, $objs) = @_;	1122	my ($rdata, $objs) = @_;
775		1123
…		…
787	or return;	1135	or return;
788		1136
789	unless (aio_stat "$filename.pst") {	1137	unless (aio_stat "$filename.pst") {
790	(aio_load "$filename.pst", $av) >= 0	1138	(aio_load "$filename.pst", $av) >= 0
791	or return;	1139	or return;
		1140
792	$av = eval { (Storable::thaw $av)->{objs} };	1141	my $st = eval { Coro::Storable::thaw $av };
		1142	$av = $st->{objs};
793	}	1143	}
794		1144
		1145	utf8::decode (my $decname = $filename);
795	warn sprintf "loading %s (%d)\n",	1146	warn sprintf "loading %s (%d,%d)\n",
796	$filename, length $data, scalar @{$av || []};#d#	1147	$decname, length $data, scalar @{$av || []};
		1148
797	return ($data, $av);	1149	($data, $av)
798	}	1150	}
		1151
		1152	=head2 COMMAND CALLBACKS
		1153
		1154	=over 4
		1155
		1156	=cut
799		1157
800	#############################################################################	1158	#############################################################################
801	# command handling &c	1159	# command handling &c
802		1160
803	=item cf::register_command $name => \&callback($ob,$args);	1161	=item cf::register_command $name => \&callback($ob,$args);
…		…
816	push @{ $COMMAND{$name} }, [$caller, $cb];	1174	push @{ $COMMAND{$name} }, [$caller, $cb];
817	}	1175	}
818		1176
819	=item cf::register_extcmd $name => \&callback($pl,$packet);	1177	=item cf::register_extcmd $name => \&callback($pl,$packet);
820		1178
821	Register a callbackf ro execution when the client sends an extcmd packet.	1179	Register a callback for execution when the client sends an (synchronous)
		1180	extcmd packet. Ext commands will be processed in the order they are
		1181	received by the server, like other user commands. The first argument is
		1182	the logged-in player. Ext commands can only be processed after a player
		1183	has logged in successfully.
822		1184
823	If the callback returns something, it is sent back as if reply was being	1185	If the callback returns something, it is sent back as if reply was being
824	called.	1186	called.
825		1187
		1188	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1189
		1190	Register a callback for execution when the client sends an (asynchronous)
		1191	exticmd packet. Exti commands are processed by the server as soon as they
		1192	are received, i.e. out of order w.r.t. other commands. The first argument
		1193	is a client socket. Exti commands can be received anytime, even before
		1194	log-in.
		1195
		1196	If the callback returns something, it is sent back as if reply was being
		1197	called.
		1198
826	=cut	1199	=cut
827		1200
828	sub register_extcmd {	1201	sub register_extcmd {
829	my ($name, $cb) = @_;	1202	my ($name, $cb) = @_;
830		1203
831	$EXTCMD{$name} = $cb;	1204	$EXTCMD{$name} = $cb;
		1205	}
		1206
		1207	sub register_exticmd {
		1208	my ($name, $cb) = @_;
		1209
		1210	$EXTICMD{$name} = $cb;
832	}	1211	}
833		1212
834	cf::player->attach (	1213	cf::player->attach (
835	on_command => sub {	1214	on_command => sub {
836	my ($pl, $name, $params) = @_;	1215	my ($pl, $name, $params) = @_;
…		…
845	cf::override;	1224	cf::override;
846	},	1225	},
847	on_extcmd => sub {	1226	on_extcmd => sub {
848	my ($pl, $buf) = @_;	1227	my ($pl, $buf) = @_;
849		1228
850	my $msg = eval { from_json $buf };	1229	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
851		1230
852	if (ref $msg) {	1231	if (ref $msg) {
		1232	my ($type, $reply, @payload) =
		1233	"ARRAY" eq ref $msg
		1234	? @$msg
		1235	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1236
		1237	my @reply;
		1238
853	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1239	if (my $cb = $EXTCMD{$type}) {
854	if (my %reply = $cb->($pl, $msg)) {	1240	@reply = $cb->($pl, @payload);
855	$pl->ext_reply ($msg->{msgid}, %reply);
856	}
857	}	1241	}
		1242
		1243	$pl->ext_reply ($reply, @reply)
		1244	if $reply;
		1245
858	} else {	1246	} else {
859	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1247	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
860	}	1248	}
861		1249
862	cf::override;	1250	cf::override;
863	},	1251	},
864	);	1252	);
865		1253
866	sub load_extension {
867	my ($path) = @_;
868
869	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
870	my $base = $1;
871	my $pkg = $1;
872	$pkg =~ s/[^[:word:]]/_/g;
873	$pkg = "ext::$pkg";
874
875	warn "... loading '$path' into '$pkg'\n";
876
877	open my $fh, "<:utf8", $path
878	or die "$path: $!";
879
880	my $source =
881	"package $pkg; use strict; use utf8;\n"
882	. "#line 1 \"$path\"\n{\n"
883	. (do { local $/; <$fh> })
884	. "\n};\n1";
885
886	unless (eval $source) {
887	my $msg = $@ ? "$path: $@\n"
888	: "extension disabled.\n";
889	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
890	warn $@;
891	warn "mandatory extension failed to load, exiting.\n";
892	exit 1;
893	}
894	die $@;
895	}
896
897	push @EXTS, $pkg;
898	}
899
900	sub load_extensions {	1254	sub load_extensions {
		1255	cf::sync_job {
		1256	my %todo;
		1257
901	for my $ext (<$LIBDIR/*.ext>) {	1258	for my $path (<$LIBDIR/*.ext>) {
902	next unless -r $ext;	1259	next unless -r $path;
903	eval {	1260
904	load_extension $ext;	1261	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1262	my $base = $1;
		1263	my $pkg = $1;
		1264	$pkg =~ s/[^[:word:]]/_/g;
		1265	$pkg = "ext::$pkg";
		1266
		1267	open my $fh, "<:utf8", $path
		1268	or die "$path: $!";
		1269
		1270	my $source = do { local $/; <$fh> };
		1271
		1272	my %ext = (
		1273	path => $path,
		1274	base => $base,
		1275	pkg => $pkg,
		1276	);
		1277
		1278	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1279	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1280
		1281	$ext{source} =
		1282	"package $pkg; use strict; use utf8;\n"
		1283	. "#line 1 \"$path\"\n{\n"
		1284	. $source
		1285	. "\n};\n1";
		1286
		1287	$todo{$base} = \%ext;
		1288	}
		1289
		1290	my %done;
		1291	while (%todo) {
		1292	my $progress;
		1293
		1294	while (my ($k, $v) = each %todo) {
		1295	for (split /,\s*/, $v->{meta}{depends}) {
		1296	goto skip
		1297	unless exists $done{$_};
		1298	}
		1299
		1300	warn "... loading '$k' into '$v->{pkg}'\n";
		1301
		1302	unless (eval $v->{source}) {
		1303	my $msg = $@ ? "$v->{path}: $@\n"
		1304	: "$v->{base}: extension inactive.\n";
		1305
		1306	if (exists $v->{meta}{mandatory}) {
		1307	warn $msg;
		1308	warn "mandatory extension failed to load, exiting.\n";
		1309	exit 1;
		1310	}
		1311
		1312	warn $msg;
		1313	}
		1314
		1315	$done{$k} = delete $todo{$k};
		1316	push @EXTS, $v->{pkg};
		1317	$progress = 1;
905	1	1318	}
906	} or warn "$ext not loaded: $@";	1319
		1320	skip:
		1321	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1322	unless $progress;
		1323	}
907	}	1324	};
908	}	1325	}
909		1326
910	#############################################################################	1327	#############################################################################
911		1328
		1329	=back
		1330
912	=head2 CORE EXTENSIONS	1331	=head2 CORE EXTENSIONS
913		1332
914	Functions and methods that extend core crossfire objects.	1333	Functions and methods that extend core crossfire objects.
915		1334
916	=cut	1335	=cut
…		…
921		1340
922	=head3 cf::player	1341	=head3 cf::player
923		1342
924	=over 4	1343	=over 4
925		1344
		1345	=item cf::player::num_playing
		1346
		1347	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1348
		1349	=cut
		1350
		1351	sub num_playing {
		1352	scalar grep
		1353	$_->ob->map
		1354	&& !$_->hidden
		1355	&& !$_->ob->flag (cf::FLAG_WIZ),
		1356	cf::player::list
		1357	}
		1358
926	=item cf::player::find $login	1359	=item cf::player::find $login
927		1360
928	Returns the given player object, loading it if necessary (might block).	1361	Returns the given player object, loading it if necessary (might block).
929		1362
930	=cut	1363	=cut
931		1364
932	sub playerdir($) {	1365	sub playerdir($) {
933	cf::localdir	1366	"$PLAYERDIR/"
934	. "/"
935	. cf::playerdir
936	. "/"
937	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1367	. (ref $_[0] ? $_[0]->ob->name : $_[0])
938	}	1368	}
939		1369
940	sub path($) {	1370	sub path($) {
941	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1371	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
942		1372
943	(playerdir $login) . "/$login.pl"	1373	(playerdir $login) . "/playerdata"
944	}	1374	}
945		1375
946	sub find_active($) {	1376	sub find_active($) {
947	$cf::PLAYER{$_[0]}	1377	$cf::PLAYER{$_[0]}
948	and $cf::PLAYER{$_[0]}->active	1378	and $cf::PLAYER{$_[0]}->active
…		…
951		1381
952	sub exists($) {	1382	sub exists($) {
953	my ($login) = @_;	1383	my ($login) = @_;
954		1384
955	$cf::PLAYER{$login}	1385	$cf::PLAYER{$login}
956	or cf::sync_job { !aio_stat $login }	1386	or cf::sync_job { !aio_stat path $login }
957	}	1387	}
958		1388
959	sub find($) {	1389	sub find($) {
960	return $cf::PLAYER{$_[0]} || do {	1390	return $cf::PLAYER{$_[0]} || do {
961	my $login = $_[0];	1391	my $login = $_[0];
962		1392
963	my $guard = cf::lock_acquire "user_find:$login";	1393	my $guard = cf::lock_acquire "user_find:$login";
964		1394
965	$cf::PLAYER{$_[0]} || do {	1395	$cf::PLAYER{$_[0]} || do {
966	my $pl = load_pl path $login	1396	# rename old playerfiles to new ones
		1397	#TODO: remove when no longer required
		1398	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1399	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1400	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1401	aio_unlink +(playerdir $login) . "/$login.pl";
		1402
		1403	my $f = new_from_file cf::object::thawer path $login
967	or return;	1404	or return;
		1405
		1406	my $pl = cf::player::load_pl $f
		1407	or return;
		1408	local $cf::PLAYER_LOADING{$login} = $pl;
		1409	$f->resolve_delayed_derefs;
968	$cf::PLAYER{$login} = $pl	1410	$cf::PLAYER{$login} = $pl
969	}	1411	}
970	}	1412	}
971	}	1413	}
972		1414
…		…
982		1424
983	aio_mkdir playerdir $pl, 0770;	1425	aio_mkdir playerdir $pl, 0770;
984	$pl->{last_save} = $cf::RUNTIME;	1426	$pl->{last_save} = $cf::RUNTIME;
985		1427
986	$pl->save_pl ($path);	1428	$pl->save_pl ($path);
987	Coro::cede;	1429	cf::cede_to_tick;
988	}	1430	}
989		1431
990	sub new($) {	1432	sub new($) {
991	my ($login) = @_;	1433	my ($login) = @_;
992		1434
…		…
998	$cf::PLAYER{$login} = $self;	1440	$cf::PLAYER{$login} = $self;
999		1441
1000	$self	1442	$self
1001	}	1443	}
1002		1444
		1445	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1446
		1447	=cut
		1448
		1449	sub send_msg {
		1450	my $ns = shift->ns
		1451	or return;
		1452	$ns->send_msg (@_);
		1453	}
		1454
1003	=item $pl->quit_character	1455	=item $pl->quit_character
1004		1456
1005	Nukes the player without looking back. If logged in, the connection will	1457	Nukes the player without looking back. If logged in, the connection will
1006	be destroyed. May block for a long time.	1458	be destroyed. May block for a long time.
1007		1459
1008	=cut	1460	=cut
1009		1461
1010	sub quit_character {	1462	sub quit_character {
1011	my ($pl) = @_;	1463	my ($pl) = @_;
		1464
		1465	my $name = $pl->ob->name;
1012		1466
1013	$pl->{deny_save} = 1;	1467	$pl->{deny_save} = 1;
1014	$pl->password ("*"); # this should lock out the player until we nuked the dir	1468	$pl->password ("*"); # this should lock out the player until we nuked the dir
1015		1469
1016	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1470	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1021	my $path = playerdir $pl;	1475	my $path = playerdir $pl;
1022	my $temp = "$path~$cf::RUNTIME~deleting~";	1476	my $temp = "$path~$cf::RUNTIME~deleting~";
1023	aio_rename $path, $temp;	1477	aio_rename $path, $temp;
1024	delete $cf::PLAYER{$pl->ob->name};	1478	delete $cf::PLAYER{$pl->ob->name};
1025	$pl->destroy;	1479	$pl->destroy;
		1480
		1481	my $prefix = qr<^~\Q$name\E/>;
		1482
		1483	# nuke player maps
		1484	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1485
1026	IO::AIO::aio_rmtree $temp;	1486	IO::AIO::aio_rmtree $temp;
		1487	}
		1488
		1489	=item $pl->kick
		1490
		1491	Kicks a player out of the game. This destroys the connection.
		1492
		1493	=cut
		1494
		1495	sub kick {
		1496	my ($pl, $kicker) = @_;
		1497
		1498	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1499	$pl->killer ("kicked");
		1500	$pl->ns->destroy;
1027	}	1501	}
1028		1502
1029	=item cf::player::list_logins	1503	=item cf::player::list_logins
1030		1504
1031	Returns am arrayref of all valid playernames in the system, can take a	1505	Returns am arrayref of all valid playernames in the system, can take a
1032	while and may block, so not sync_job-capable, ever.	1506	while and may block, so not sync_job-capable, ever.
1033		1507
1034	=cut	1508	=cut
1035		1509
1036	sub list_logins {	1510	sub list_logins {
1037	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1511	my $dirs = aio_readdir $PLAYERDIR
1038	or return [];	1512	or return [];
1039		1513
1040	my @logins;	1514	my @logins;
1041		1515
1042	for my $login (@$dirs) {	1516	for my $login (@$dirs) {
		1517	my $path = path $login;
		1518
		1519	# a .pst is a dead give-away for a valid player
		1520	unless (-e "$path.pst") {
1043	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1521	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1044	aio_read $fh, 0, 512, my $buf, 0 or next;	1522	aio_read $fh, 0, 512, my $buf, 0 or next;
1045	$buf !~ /^password -------------$/m or next; # official not-valid tag	1523	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1524	}
1046		1525
1047	utf8::decode $login;	1526	utf8::decode $login;
1048	push @logins, $login;	1527	push @logins, $login;
1049	}	1528	}
1050		1529
…		…
1058		1537
1059	=cut	1538	=cut
1060		1539
1061	sub maps($) {	1540	sub maps($) {
1062	my ($pl) = @_;	1541	my ($pl) = @_;
		1542
		1543	$pl = ref $pl ? $pl->ob->name : $pl;
1063		1544
1064	my $files = aio_readdir playerdir $pl	1545	my $files = aio_readdir playerdir $pl
1065	or return;	1546	or return;
1066		1547
1067	my @paths;	1548	my @paths;
…		…
1069	for (@$files) {	1550	for (@$files) {
1070	utf8::decode $_;	1551	utf8::decode $_;
1071	next if /\.(?:pl|pst)$/;	1552	next if /\.(?:pl|pst)$/;
1072	next unless /^$PATH_SEP/o;	1553	next unless /^$PATH_SEP/o;
1073		1554
1074	s/\.map$//;	1555	push @paths, cf::map::normalise "~$pl/$_";
1075	push @paths, "~" . $pl->ob->name . "/" . $_;
1076	}	1556	}
1077		1557
1078	\@paths	1558	\@paths
1079	}	1559	}
1080		1560
		1561	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1562
		1563	Expand crossfire pod fragments into protocol xml.
		1564
		1565	=cut
		1566
		1567	use re 'eval';
		1568
		1569	my $group;
		1570	my $interior; $interior = qr{
		1571	# match a pod interior sequence sans C<< >>
		1572	(?:
		1573	\ (.*?)\ (?{ $group = $^N })
		1574	| < (??{$interior}) >
		1575	)
		1576	}x;
		1577
		1578	sub expand_cfpod {
		1579	my ($self, $pod) = @_;
		1580
		1581	my $xml;
		1582
		1583	while () {
		1584	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1585	$group = $1;
		1586
		1587	$group =~ s/&/&amp;/g;
		1588	$group =~ s/</&lt;/g;
		1589
		1590	$xml .= $group;
		1591	} elsif ($pod =~ m%\G
		1592	([BCGHITU])
		1593	<
		1594	(?:
		1595	([^<>]*) (?{ $group = $^N })
		1596	| < $interior >
		1597	)
		1598	>
		1599	%gcsx
		1600	) {
		1601	my ($code, $data) = ($1, $group);
		1602
		1603	if ($code eq "B") {
		1604	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1605	} elsif ($code eq "I") {
		1606	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1607	} elsif ($code eq "U") {
		1608	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1609	} elsif ($code eq "C") {
		1610	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1611	} elsif ($code eq "T") {
		1612	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1613	} elsif ($code eq "G") {
		1614	my ($male, $female) = split /\|/, $data;
		1615	$data = $self->gender ? $female : $male;
		1616	$xml .= expand_cfpod ($self, $data);
		1617	} elsif ($code eq "H") {
		1618	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1619	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1620	"")
		1621	[$self->{hintmode}];
		1622	} else {
		1623	$xml .= "error processing '$code($data)' directive";
		1624	}
		1625	} else {
		1626	if ($pod =~ /\G(.+)/) {
		1627	warn "parse error while expanding $pod (at $1)";
		1628	}
		1629	last;
		1630	}
		1631	}
		1632
		1633	for ($xml) {
		1634	# create single paragraphs (very hackish)
		1635	s/(?<=\S)\n(?=\w)/ /g;
		1636
		1637	# compress some whitespace
		1638	s/\s+\n/\n/g; # ws line-ends
		1639	s/\n\n+/\n/g; # double lines
		1640	s/^\n+//; # beginning lines
		1641	s/\n+$//; # ending lines
		1642	}
		1643
		1644	$xml
		1645	}
		1646
		1647	no re 'eval';
		1648
		1649	sub hintmode {
		1650	$_[0]{hintmode} = $_[1] if @_ > 1;
		1651	$_[0]{hintmode}
		1652	}
		1653
1081	=item $player->ext_reply ($msgid, $msgtype, %msg)	1654	=item $player->ext_reply ($msgid, @msg)
1082		1655
1083	Sends an ext reply to the player.	1656	Sends an ext reply to the player.
1084		1657
1085	=cut	1658	=cut
1086		1659
1087	sub ext_reply($$$%) {	1660	sub ext_reply($$@) {
1088	my ($self, $id, %msg) = @_;	1661	my ($self, $id, @msg) = @_;
1089		1662
1090	$msg{msgid} = $id;	1663	$self->ns->ext_reply ($id, @msg)
1091
1092	$self->send ("ext " . cf::to_json \%msg);
1093	}	1664	}
1094		1665
1095	package cf;	1666	=item $player->ext_msg ($type, @msg)
		1667
		1668	Sends an ext event to the client.
		1669
		1670	=cut
		1671
		1672	sub ext_msg($$@) {
		1673	my ($self, $type, @msg) = @_;
		1674
		1675	$self->ns->ext_msg ($type, @msg);
		1676	}
		1677
		1678	=head3 cf::region
		1679
		1680	=over 4
		1681
		1682	=cut
		1683
		1684	package cf::region;
		1685
		1686	=item cf::region::find_by_path $path
		1687
		1688	Tries to decuce the likely region for a map knowing only its path.
		1689
		1690	=cut
		1691
		1692	sub find_by_path($) {
		1693	my ($path) = @_;
		1694
		1695	my ($match, $specificity);
		1696
		1697	for my $region (list) {
		1698	if ($region->{match} && $path =~ $region->{match}) {
		1699	($match, $specificity) = ($region, $region->specificity)
		1700	if $region->specificity > $specificity;
		1701	}
		1702	}
		1703
		1704	$match
		1705	}
1096		1706
1097	=back	1707	=back
1098
1099		1708
1100	=head3 cf::map	1709	=head3 cf::map
1101		1710
1102	=over 4	1711	=over 4
1103		1712
…		…
1107		1716
1108	use Fcntl;	1717	use Fcntl;
1109	use Coro::AIO;	1718	use Coro::AIO;
1110		1719
1111	use overload	1720	use overload
1112	'""' => \&as_string;	1721	'""' => \&as_string,
		1722	fallback => 1;
1113		1723
1114	our $MAX_RESET = 3600;	1724	our $MAX_RESET = 3600;
1115	our $DEFAULT_RESET = 3000;	1725	our $DEFAULT_RESET = 3000;
1116		1726
1117	sub generate_random_map {	1727	sub generate_random_map {
1118	my ($self, $rmp) = @_;	1728	my ($self, $rmp) = @_;
1119
1120	# mit "rum" bekleckern, nicht	1729	# mit "rum" bekleckern, nicht
1121	$self->_create_random_map (	1730	$self->_create_random_map (
1122	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1731	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1123	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1732	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1124	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1733	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1131	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1740	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1132	(cf::region::find $rmp->{region}), $rmp->{custom}	1741	(cf::region::find $rmp->{region}), $rmp->{custom}
1133	)	1742	)
1134	}	1743	}
1135		1744
		1745	=item cf::map->register ($regex, $prio)
		1746
		1747	Register a handler for the map path matching the given regex at the
		1748	givne priority (higher is better, built-in handlers have priority 0, the
		1749	default).
		1750
		1751	=cut
		1752
1136	sub register {	1753	sub register {
1137	my (undef, $regex) = @_;	1754	my (undef, $regex, $prio) = @_;
1138	my $pkg = caller;	1755	my $pkg = caller;
1139		1756
1140	no strict;	1757	no strict;
1141	push @{"$pkg\::ISA"}, __PACKAGE__;	1758	push @{"$pkg\::ISA"}, __PACKAGE__;
1142		1759
1143	$EXT_MAP{$pkg} = qr<$regex>;	1760	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1144	}	1761	}
1145		1762
1146	# also paths starting with '/'	1763	# also paths starting with '/'
1147	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1764	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1765
		1766	sub thawer_merge {
		1767	my ($self, $merge) = @_;
		1768
		1769	# we have to keep some variables in memory intact
		1770	local $self->{path};
		1771	local $self->{load_path};
		1772
		1773	$self->SUPER::thawer_merge ($merge);
		1774	}
1148		1775
1149	sub normalise {	1776	sub normalise {
1150	my ($path, $base) = @_;	1777	my ($path, $base) = @_;
		1778
		1779	$path = "$path"; # make sure its a string
		1780
		1781	$path =~ s/\.map$//;
1151		1782
1152	# map plan:	1783	# map plan:
1153	#	1784	#
1154	# /! non-realised random map exit (special hack!)	1785	# /! non-realised random map exit (special hack!)
1155	# {... are special paths that are not being touched	1786	# {... are special paths that are not being touched
…		…
1183		1814
1184	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1815	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1185		1816
1186	$path = normalise $path, $base;	1817	$path = normalise $path, $base;
1187		1818
1188	for my $pkg (keys %EXT_MAP) {	1819	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1189	if ($path =~ $EXT_MAP{$pkg}) {	1820	if ($path =~ $EXT_MAP{$pkg}[1]) {
1190	my $self = bless cf::map::new, $pkg;	1821	my $self = bless cf::map::new, $pkg;
1191	$self->{path} = $path; $self->path ($path);	1822	$self->{path} = $path; $self->path ($path);
1192	$self->init; # pass $1 etc.	1823	$self->init; # pass $1 etc.
1193	return $self;	1824	return $self;
1194	}	1825	}
1195	}	1826	}
1196		1827
1197	Carp::carp "unable to resolve path '$path'.";	1828	Carp::cluck "unable to resolve path '$path' (base '$base').";
1198	()	1829	()
1199	}	1830	}
1200		1831
1201	sub init {	1832	sub init {
1202	my ($self) = @_;	1833	my ($self) = @_;
…		…
1217		1848
1218	# the original (read-only) location	1849	# the original (read-only) location
1219	sub load_path {	1850	sub load_path {
1220	my ($self) = @_;	1851	my ($self) = @_;
1221		1852
1222	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1853	"$MAPDIR/$self->{path}.map"
1223	}	1854	}
1224		1855
1225	# the temporary/swap location	1856	# the temporary/swap location
1226	sub save_path {	1857	sub save_path {
1227	my ($self) = @_;	1858	my ($self) = @_;
1228		1859
1229	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1860	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1230	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1861	"$TMPDIR/$path.map"
1231	}	1862	}
1232		1863
1233	# the unique path, undef == no special unique path	1864	# the unique path, undef == no special unique path
1234	sub uniq_path {	1865	sub uniq_path {
1235	my ($self) = @_;	1866	my ($self) = @_;
1236		1867
1237	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1868	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1238	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1869	"$UNIQUEDIR/$path"
1239	}	1870	}
1240		1871
1241	# and all this just because we cannot iterate over	1872	# and all this just because we cannot iterate over
1242	# all maps in C++...	1873	# all maps in C++...
1243	sub change_all_map_light {	1874	sub change_all_map_light {
…		…
1245		1876
1246	$_->change_map_light ($change)	1877	$_->change_map_light ($change)
1247	for grep $_->outdoor, values %cf::MAP;	1878	for grep $_->outdoor, values %cf::MAP;
1248	}	1879	}
1249		1880
		1881	sub decay_objects {
		1882	my ($self) = @_;
		1883
		1884	return if $self->{deny_reset};
		1885
		1886	$self->do_decay_objects;
		1887	}
		1888
1250	sub unlink_save {	1889	sub unlink_save {
1251	my ($self) = @_;	1890	my ($self) = @_;
1252		1891
1253	utf8::encode (my $save = $self->save_path);	1892	utf8::encode (my $save = $self->save_path);
1254	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1255	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1894	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1256	}	1895	}
1257		1896
1258	sub load_header_from($) {	1897	sub load_header_from($) {
1259	my ($self, $path) = @_;	1898	my ($self, $path) = @_;
1260		1899
1261	utf8::encode $path;	1900	utf8::encode $path;
1262	aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1263	or return;	1902	or return;
1264		1903
1265	$self->_load_header ($path)	1904	$self->_load_header ($f)
1266	or return;	1905	or return;
1267		1906
		1907	local $MAP_LOADING{$self->{path}} = $self;
		1908	$f->resolve_delayed_derefs;
		1909
1268	$self->{load_path} = $path;	1910	$self->{load_path} = $path;
1269		1911
1270	1	1912	1
1271	}	1913	}
1272		1914
1273	sub load_orig {	1915	sub load_header_orig {
1274	my ($self) = @_;	1916	my ($self) = @_;
1275		1917
1276	$self->load_header_from ($self->load_path)	1918	$self->load_header_from ($self->load_path)
1277	}	1919	}
1278		1920
1279	sub load_temp {	1921	sub load_header_temp {
1280	my ($self) = @_;	1922	my ($self) = @_;
1281		1923
1282	$self->load_header_from ($self->save_path)	1924	$self->load_header_from ($self->save_path)
		1925	}
		1926
		1927	sub prepare_temp {
		1928	my ($self) = @_;
		1929
		1930	$self->last_access ((delete $self->{last_access})
		1931	|| $cf::RUNTIME); #d#
		1932	# safety
		1933	$self->{instantiate_time} = $cf::RUNTIME
		1934	if $self->{instantiate_time} > $cf::RUNTIME;
		1935	}
		1936
		1937	sub prepare_orig {
		1938	my ($self) = @_;
		1939
		1940	$self->{load_original} = 1;
		1941	$self->{instantiate_time} = $cf::RUNTIME;
		1942	$self->last_access ($cf::RUNTIME);
		1943	$self->instantiate;
1283	}	1944	}
1284		1945
1285	sub load_header {	1946	sub load_header {
1286	my ($self) = @_;	1947	my ($self) = @_;
1287		1948
1288	if ($self->load_temp) {	1949	if ($self->load_header_temp) {
1289	$self->last_access ((delete $self->{last_access})	1950	$self->prepare_temp;
1290	|| $cf::RUNTIME); #d#
1291	# safety
1292	$self->{instantiate_time} = $cf::RUNTIME
1293	if $self->{instantiate_time} > $cf::RUNTIME;
1294	} else {	1951	} else {
1295	$self->load_orig	1952	$self->load_header_orig
1296	or return;	1953	or return;
1297		1954	$self->prepare_orig;
1298	$self->{load_original} = 1;
1299	$self->{instantiate_time} = $cf::RUNTIME;
1300	$self->last_access ($cf::RUNTIME);
1301	$self->instantiate;
1302	}	1955	}
		1956
		1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
		1959
		1960	$self->default_region (cf::region::find_by_path $self->{path})
		1961	unless $self->default_region;
1303		1962
1304	1	1963	1
1305	}	1964	}
1306		1965
1307	sub find;	1966	sub find;
1308	sub find {	1967	sub find {
1309	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1310		1969
1311	$path = normalise $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1312		1971
		1972	cf::lock_wait "map_data:$path";#d#remove
1313	cf::lock_wait "map_find:$path";	1973	cf::lock_wait "map_find:$path";
1314		1974
1315	$cf::MAP{$path} || do {	1975	$cf::MAP{$path} || do {
1316	my $guard = cf::lock_acquire "map_find:$path";	1976	my $guard1 = cf::lock_acquire "map_find:$path";
		1977	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1978
1317	my $map = new_from_path cf::map $path	1979	my $map = new_from_path cf::map $path
1318	or return;	1980	or return;
1319		1981
1320	$map->{last_save} = $cf::RUNTIME;	1982	$map->{last_save} = $cf::RUNTIME;
1321		1983
1322	$map->load_header	1984	$map->load_header
1323	or return;	1985	or return;
1324		1986
1325	if ($map->should_reset) {	1987	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1988	# doing this can freeze the server in a sync job, obviously
		1989	#$cf::WAIT_FOR_TICK->wait;
		1990	undef $guard1;
		1991	undef $guard2;
1326	$map->reset;	1992	$map->reset;
1327	undef $guard;
1328	$map = find $path	1993	return find $path;
1329	or return;
1330	}	1994	}
1331		1995
1332	$cf::MAP{$path} = $map	1996	$cf::MAP{$path} = $map
1333	}	1997	}
1334	}	1998	}
		1999
		2000	sub pre_load { }
		2001	sub post_load { }
1335		2002
1336	sub load {	2003	sub load {
1337	my ($self) = @_;	2004	my ($self) = @_;
1338		2005
		2006	local $self->{deny_reset} = 1; # loading can take a long time
		2007
1339	my $path = $self->{path};	2008	my $path = $self->{path};
		2009
		2010	{
1340	my $guard = cf::lock_acquire "map_load:$path";	2011	my $guard = cf::lock_acquire "map_data:$path";
1341		2012
		2013	return unless $self->valid;
1342	return if $self->in_memory != cf::MAP_SWAPPED;	2014	return unless $self->in_memory == cf::MAP_SWAPPED;
1343		2015
1344	$self->in_memory (cf::MAP_LOADING);	2016	$self->in_memory (cf::MAP_LOADING);
1345		2017
1346	$self->alloc;	2018	$self->alloc;
1347	$self->_load_objects ($self->{load_path}, 1)	2019
		2020	$self->pre_load;
		2021	cf::cede_to_tick;
		2022
		2023	my $f = new_from_file cf::object::thawer $self->{load_path};
		2024	$f->skip_block;
		2025	$self->_load_objects ($f)
1348	or return;	2026	or return;
1349		2027
1350	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2028	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1351	if delete $self->{load_original};	2029	if delete $self->{load_original};
1352		2030
1353	if (my $uniq = $self->uniq_path) {	2031	if (my $uniq = $self->uniq_path) {
1354	utf8::encode $uniq;	2032	utf8::encode $uniq;
1355	if (aio_open $uniq, O_RDONLY, 0) {	2033	unless (aio_stat $uniq) {
		2034	if (my $f = new_from_file cf::object::thawer $uniq) {
1356	$self->clear_unique_items;	2035	$self->clear_unique_items;
1357	$self->_load_objects ($uniq, 0);	2036	$self->_load_objects ($f);
		2037	$f->resolve_delayed_derefs;
		2038	}
1358	}	2039	}
1359	}	2040	}
1360		2041
1361	Coro::cede;	2042	$f->resolve_delayed_derefs;
1362		2043
		2044	cf::cede_to_tick;
1363	# now do the right thing for maps	2045	# now do the right thing for maps
1364	$self->link_multipart_objects;	2046	$self->link_multipart_objects;
1365
1366	unless ($self->{deny_activate}) {
1367	$self->decay_objects;
1368	$self->fix_auto_apply;
1369	$self->update_buttons;
1370	Coro::cede;
1371	$self->set_darkness_map;
1372	$self->difficulty ($self->estimate_difficulty)	2047	$self->difficulty ($self->estimate_difficulty)
1373	unless $self->difficulty;	2048	unless $self->difficulty;
1374	Coro::cede;	2049	cf::cede_to_tick;
		2050
		2051	unless ($self->{deny_activate}) {
		2052	$self->decay_objects;
		2053	$self->fix_auto_apply;
		2054	$self->update_buttons;
		2055	cf::cede_to_tick;
		2056	$self->set_darkness_map;
		2057	cf::cede_to_tick;
1375	$self->activate;	2058	$self->activate;
1376	}	2059	}
1377		2060
		2061	$self->{last_save} = $cf::RUNTIME;
		2062	$self->last_access ($cf::RUNTIME);
		2063
1378	$self->in_memory (cf::MAP_IN_MEMORY);	2064	$self->in_memory (cf::MAP_IN_MEMORY);
		2065	}
		2066
		2067	$self->post_load;
1379	}	2068	}
1380		2069
1381	sub customise_for {	2070	sub customise_for {
1382	my ($self, $ob) = @_;	2071	my ($self, $ob) = @_;
1383		2072
1384	return find "~" . $ob->name . "/" . $self->{path}	2073	return find "~" . $ob->name . "/" . $self->{path}
1385	if $self->per_player;	2074	if $self->per_player;
1386		2075
		2076	# return find "?party/" . $ob->name . "/" . $self->{path}
		2077	# if $self->per_party;
		2078
1387	$self	2079	$self
1388	}	2080	}
1389		2081
1390	# find and load all maps in the 3x3 area around a map	2082	# find and load all maps in the 3x3 area around a map
1391	sub load_diag {	2083	sub load_neighbours {
1392	my ($map) = @_;	2084	my ($map) = @_;
1393		2085
1394	my @diag; # diagonal neighbours	2086	my @neigh; # diagonal neighbours
1395		2087
1396	for (0 .. 3) {	2088	for (0 .. 3) {
1397	my $neigh = $map->tile_path ($_)	2089	my $neigh = $map->tile_path ($_)
1398	or next;	2090	or next;
1399	$neigh = find $neigh, $map	2091	$neigh = find $neigh, $map
1400	or next;	2092	or next;
1401	$neigh->load;	2093	$neigh->load;
1402		2094
		2095	push @neigh,
1403	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2096	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1404	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2097	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1405	}	2098	}
1406		2099
1407	for (@diag) {	2100	for (grep defined $_->[0], @neigh) {
		2101	my ($path, $origin) = @$_;
1408	my $neigh = find @$_	2102	my $neigh = find $path, $origin
1409	or next;	2103	or next;
1410	$neigh->load;	2104	$neigh->load;
1411	}	2105	}
1412	}	2106	}
1413		2107
…		…
1418	}	2112	}
1419		2113
1420	sub do_load_sync {	2114	sub do_load_sync {
1421	my ($map) = @_;	2115	my ($map) = @_;
1422		2116
		2117	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2118	if $Coro::current == $Coro::main;
		2119
1423	cf::sync_job { $map->load };	2120	cf::sync_job { $map->load };
1424	}	2121	}
1425		2122
1426	our %MAP_PREFETCH;	2123	our %MAP_PREFETCH;
1427	our $MAP_PREFETCHER = Coro::async {	2124	our $MAP_PREFETCHER = undef;
1428	while () {
1429	for my $path (keys %MAP_PREFETCH) {
1430	my $map = find $path
1431	or next;
1432	$map->load;
1433
1434	delete $MAP_PREFETCH{$path};
1435	}
1436	Coro::schedule;
1437	}
1438	};
1439		2125
1440	sub find_async {	2126	sub find_async {
1441	my ($path, $origin) = @_;	2127	my ($path, $origin, $load) = @_;
1442		2128
1443	$path = normalise $path, $origin && $origin->{path};	2129	$path = normalise $path, $origin && $origin->{path};
1444		2130
1445	if (my $map = $cf::MAP{$path}) {	2131	if (my $map = $cf::MAP{$path}) {
1446	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2132	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2133	}
		2134
		2135	$MAP_PREFETCH{$path} |= $load;
		2136
		2137	$MAP_PREFETCHER ||= cf::async {
		2138	$Coro::current->{desc} = "map prefetcher";
		2139
		2140	while (%MAP_PREFETCH) {
		2141	while (my ($k, $v) = each %MAP_PREFETCH) {
		2142	if (my $map = find $k) {
		2143	$map->load if $v;
		2144	}
		2145
		2146	delete $MAP_PREFETCH{$k};
		2147	}
		2148	}
		2149	undef $MAP_PREFETCHER;
1447	}	2150	};
1448
1449	$MAP_PREFETCH{$path} = 0;
1450	$MAP_PREFETCHER->ready;	2151	$MAP_PREFETCHER->prio (6);
1451		2152
1452	()	2153	()
1453	}	2154	}
1454		2155
1455	sub save {	2156	sub save {
1456	my ($self) = @_;	2157	my ($self) = @_;
1457		2158
1458	my $lock = cf::lock_acquire "map_data:" . $self->path;	2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
1459		2160
1460	$self->{last_save} = $cf::RUNTIME;	2161	$self->{last_save} = $cf::RUNTIME;
1461		2162
1462	return unless $self->dirty;	2163	return unless $self->dirty;
1463		2164
…		…
1469	return if $self->{deny_save};	2170	return if $self->{deny_save};
1470		2171
1471	local $self->{last_access} = $self->last_access;#d#	2172	local $self->{last_access} = $self->last_access;#d#
1472		2173
1473	cf::async {	2174	cf::async {
		2175	$Coro::current->{desc} = "map player save";
1474	$_->contr->save for $self->players;	2176	$_->contr->save for $self->players;
1475	};	2177	};
1476		2178
1477	if ($uniq) {	2179	if ($uniq) {
1478	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2180	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1486	my ($self) = @_;	2188	my ($self) = @_;
1487		2189
1488	# save first because save cedes	2190	# save first because save cedes
1489	$self->save;	2191	$self->save;
1490		2192
1491	my $lock = cf::lock_acquire "map_data:" . $self->path;	2193	my $lock = cf::lock_acquire "map_data:$self->{path}";
1492		2194
1493	return if $self->players;	2195	return if $self->players;
1494	return if $self->in_memory != cf::MAP_IN_MEMORY;	2196	return if $self->in_memory != cf::MAP_IN_MEMORY;
1495	return if $self->{deny_save};	2197	return if $self->{deny_save};
1496		2198
		2199	$self->in_memory (cf::MAP_SWAPPED);
		2200
		2201	$self->deactivate;
		2202	$_->clear_links_to ($self) for values %cf::MAP;
1497	$self->clear;	2203	$self->clear;
1498	$self->in_memory (cf::MAP_SWAPPED);
1499	}	2204	}
1500		2205
1501	sub reset_at {	2206	sub reset_at {
1502	my ($self) = @_;	2207	my ($self) = @_;
1503		2208
1504	# TODO: safety, remove and allow resettable per-player maps	2209	# TODO: safety, remove and allow resettable per-player maps
1505	return 1e99 if $self->isa ("ext::map_per_player");#d#
1506	return 1e99 if $self->{deny_reset};	2210	return 1e99 if $self->{deny_reset};
1507		2211
1508	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2212	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1509	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2213	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1510		2214
…		…
1515	my ($self) = @_;	2219	my ($self) = @_;
1516		2220
1517	$self->reset_at <= $cf::RUNTIME	2221	$self->reset_at <= $cf::RUNTIME
1518	}	2222	}
1519		2223
1520	sub rename {
1521	my ($self, $new_path) = @_;
1522
1523	normalise $new_path;
1524
1525	$self->unlink_save;
1526
1527	delete $cf::MAP{$self->path};
1528	$self->{path} = $new_path; $self->path ($self->{path});
1529	$cf::MAP{$self->path} = $self;
1530
1531	$self->save;
1532	}
1533
1534	sub reset {	2224	sub reset {
1535	my ($self) = @_;	2225	my ($self) = @_;
1536		2226
1537	my $lock = cf::lock_acquire "map_data:$self->{path}";	2227	my $lock = cf::lock_acquire "map_data:$self->{path}";
1538		2228
1539	return if $self->players;	2229	return if $self->players;
1540	return if $self->isa ("ext::map_per_player");#d#
1541		2230
1542	warn "resetting map ", $self->path;#d#	2231	warn "resetting map ", $self->path;
		2232
		2233	$self->in_memory (cf::MAP_SWAPPED);
		2234
		2235	# need to save uniques path
		2236	unless ($self->{deny_save}) {
		2237	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2238
		2239	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2240	if $uniq;
		2241	}
1543		2242
1544	delete $cf::MAP{$self->path};	2243	delete $cf::MAP{$self->path};
1545		2244
1546	$self->in_memory (cf::MAP_SWAPPED);	2245	$self->deactivate;
		2246	$_->clear_links_to ($self) for values %cf::MAP;
1547	$self->clear;	2247	$self->clear;
1548
1549	$_->clear_links_to ($self) for values %cf::MAP;
1550		2248
1551	$self->unlink_save;	2249	$self->unlink_save;
1552	$self->destroy;	2250	$self->destroy;
1553	}	2251	}
1554		2252
1555	my $nuke_counter = "aaaa";	2253	my $nuke_counter = "aaaa";
1556		2254
1557	sub nuke {	2255	sub nuke {
1558	my ($self) = @_;	2256	my ($self) = @_;
1559		2257
		2258	{
		2259	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2260
		2261	delete $cf::MAP{$self->path};
		2262
		2263	$self->unlink_save;
		2264
		2265	bless $self, "cf::map";
		2266	delete $self->{deny_reset};
1560	$self->{deny_save} = 1;	2267	$self->{deny_save} = 1;
1561	$self->reset_timeout (1);	2268	$self->reset_timeout (1);
1562	$self->rename ("{nuke}/" . ($nuke_counter++));	2269	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2270
		2271	$cf::MAP{$self->path} = $self;
		2272	}
		2273
1563	$self->reset; # polite request, might not happen	2274	$self->reset; # polite request, might not happen
		2275	}
		2276
		2277	=item $maps = cf::map::tmp_maps
		2278
		2279	Returns an arrayref with all map paths of currently instantiated and saved
		2280	maps. May block.
		2281
		2282	=cut
		2283
		2284	sub tmp_maps() {
		2285	[
		2286	map {
		2287	utf8::decode $_;
		2288	/\.map$/
		2289	? normalise $_
		2290	: ()
		2291	} @{ aio_readdir $TMPDIR or [] }
		2292	]
		2293	}
		2294
		2295	=item $maps = cf::map::random_maps
		2296
		2297	Returns an arrayref with all map paths of currently instantiated and saved
		2298	random maps. May block.
		2299
		2300	=cut
		2301
		2302	sub random_maps() {
		2303	[
		2304	map {
		2305	utf8::decode $_;
		2306	/\.map$/
		2307	? normalise "?random/$_"
		2308	: ()
		2309	} @{ aio_readdir $RANDOMDIR or [] }
		2310	]
1564	}	2311	}
1565		2312
1566	=item cf::map::unique_maps	2313	=item cf::map::unique_maps
1567		2314
1568	Returns an arrayref of paths of all shared maps that have	2315	Returns an arrayref of paths of all shared maps that have
1569	instantiated unique items. May block.	2316	instantiated unique items. May block.
1570		2317
1571	=cut	2318	=cut
1572		2319
1573	sub unique_maps() {	2320	sub unique_maps() {
1574	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2321	[
1575	or return;	2322	map {
1576
1577	my @paths;
1578
1579	for (@$files) {
1580	utf8::decode $_;	2323	utf8::decode $_;
1581	next if /\.pst$/;
1582	next unless /^$PATH_SEP/o;
1583
1584	s/\.map$//;	2324	/\.map$/
1585	push @paths, $_;	2325	? normalise $_
		2326	: ()
		2327	} @{ aio_readdir $UNIQUEDIR or [] }
1586	}	2328	]
1587
1588	\@paths
1589	}	2329	}
1590		2330
1591	package cf;	2331	package cf;
1592		2332
1593	=back	2333	=back
…		…
1611	map { $_, inv_recursive_ $_->inv } @_	2351	map { $_, inv_recursive_ $_->inv } @_
1612	}	2352	}
1613		2353
1614	sub inv_recursive {	2354	sub inv_recursive {
1615	inv_recursive_ inv $_[0]	2355	inv_recursive_ inv $_[0]
		2356	}
		2357
		2358	=item $ref = $ob->ref
		2359
		2360	creates and returns a persistent reference to an objetc that can be stored as a string.
		2361
		2362	=item $ob = cf::object::deref ($refstring)
		2363
		2364	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2365	even if the object actually exists. May block.
		2366
		2367	=cut
		2368
		2369	sub deref {
		2370	my ($ref) = @_;
		2371
		2372	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2373	my ($uuid, $name) = ($1, $2);
		2374	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2375	or return;
		2376	$pl->ob->uuid eq $uuid
		2377	or return;
		2378
		2379	$pl->ob
		2380	} else {
		2381	warn "$ref: cannot resolve object reference\n";
		2382	undef
		2383	}
1616	}	2384	}
1617		2385
1618	package cf;	2386	package cf;
1619		2387
1620	=back	2388	=back
…		…
1639		2407
1640	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2408	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1641		2409
1642	if ($self->{record_replies}) {	2410	if ($self->{record_replies}) {
1643	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2411	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2412
1644	} else {	2413	} else {
		2414	my $pl = $self->contr;
		2415
		2416	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2417	my $dialog = $pl->{npc_dialog};
		2418	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2419
		2420	} else {
1645	$msg = $npc->name . " says: $msg" if $npc;	2421	$msg = $npc->name . " says: $msg" if $npc;
1646	$self->message ($msg, $flags);	2422	$self->message ($msg, $flags);
		2423	}
1647	}	2424	}
		2425	}
		2426
		2427	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2428
		2429	=cut
		2430
		2431	sub cf::object::send_msg {
		2432	my $pl = shift->contr
		2433	or return;
		2434	$pl->send_msg (@_);
1648	}	2435	}
1649		2436
1650	=item $player_object->may ("access")	2437	=item $player_object->may ("access")
1651		2438
1652	Returns wether the given player is authorized to access resource "access"	2439	Returns wether the given player is authorized to access resource "access"
…		…
1684	=cut	2471	=cut
1685		2472
1686	sub link_map {	2473	sub link_map {
1687	unless ($LINK_MAP) {	2474	unless ($LINK_MAP) {
1688	$LINK_MAP = cf::map::find "{link}"	2475	$LINK_MAP = cf::map::find "{link}"
1689	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2476	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1690	$LINK_MAP->load;	2477	$LINK_MAP->load;
1691	}	2478	}
1692		2479
1693	$LINK_MAP	2480	$LINK_MAP
1694	}	2481	}
…		…
1699	$self->deactivate_recursive;	2486	$self->deactivate_recursive;
1700		2487
1701	return if UNIVERSAL::isa $self->map, "ext::map_link";	2488	return if UNIVERSAL::isa $self->map, "ext::map_link";
1702		2489
1703	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1704	if $self->map;	2491	if $self->map && $self->map->{path} ne "{link}";
1705		2492
1706	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2493	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1707	}	2494	}
1708		2495
1709	sub cf::object::player::leave_link {	2496	sub cf::object::player::leave_link {
1710	my ($self, $map, $x, $y) = @_;	2497	my ($self, $map, $x, $y) = @_;
		2498
		2499	return unless $self->contr->active;
1711		2500
1712	my $link_pos = delete $self->{_link_pos};	2501	my $link_pos = delete $self->{_link_pos};
1713		2502
1714	unless ($map) {	2503	unless ($map) {
1715	# restore original map position	2504	# restore original map position
…		…
1729	# use -1 or undef as default coordinates, not 0, 0	2518	# use -1 or undef as default coordinates, not 0, 0
1730	($x, $y) = ($map->enter_x, $map->enter_y)	2519	($x, $y) = ($map->enter_x, $map->enter_y)
1731	if $x <=0 && $y <= 0;	2520	if $x <=0 && $y <= 0;
1732		2521
1733	$map->load;	2522	$map->load;
1734	$map->load_diag;	2523	$map->load_neighbours;
1735		2524
1736	return unless $self->contr->active;	2525	return unless $self->contr->active;
1737	$self->activate_recursive;	2526	$self->activate_recursive;
		2527
		2528	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1738	$self->enter_map ($map, $x, $y);	2529	$self->enter_map ($map, $x, $y);
1739	}	2530	}
1740		2531
1741	cf::player->attach (	2532	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1742	on_logout => sub {
1743	my ($pl) = @_;
1744		2533
1745	# abort map switching before logout	2534	Moves the player to the given map-path and coordinates by first freezing
1746	if ($pl->ob->{_link_pos}) {	2535	her, loading and preparing them map, calling the provided $check callback
1747	cf::sync_job {	2536	that has to return the map if sucecssful, and then unfreezes the player on
1748	$pl->ob->leave_link	2537	the new (success) or old (failed) map position. In either case, $done will
1749	};	2538	be called at the end of this process.
1750	}
1751	},
1752	on_login => sub {
1753	my ($pl) = @_;
1754		2539
1755	# try to abort aborted map switching on player login :)
1756	# should happen only on crashes
1757	if ($pl->ob->{_link_pos}) {
1758	$pl->ob->enter_link;
1759	(async {
1760	# we need this sleep as the login has a concurrent enter_exit running
1761	# and this sleep increases chances of the player not ending up in scorn
1762	$pl->ob->reply (undef,
1763	"There was an internal problem at your last logout, "
1764	. "the server will try to bring you to your intended destination in a second.",
1765	cf::NDI_RED);
1766	Coro::Timer::sleep 1;
1767	$pl->ob->leave_link;
1768	})->prio (2);
1769	}
1770	},
1771	);
1772
1773	=item $player_object->goto ($path, $x, $y)
1774
1775	=cut	2540	=cut
		2541
		2542	our $GOTOGEN;
1776		2543
1777	sub cf::object::player::goto {	2544	sub cf::object::player::goto {
1778	my ($self, $path, $x, $y) = @_;	2545	my ($self, $path, $x, $y, $check, $done) = @_;
		2546
		2547	# do generation counting so two concurrent goto's will be executed in-order
		2548	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1779		2549
1780	$self->enter_link;	2550	$self->enter_link;
1781		2551
1782	(async {	2552	(async {
1783	my $map = cf::map::find $path;	2553	$Coro::current->{desc} = "player::goto $path $x $y";
		2554
		2555	# *tag paths override both path and x|y
		2556	if ($path =~ /^\*(.*)$/) {
		2557	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2558	my $ob = $obs[rand @obs];
		2559
		2560	# see if we actually can go there
		2561	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2562	$ob = $obs[rand @obs];
		2563	} else {
		2564	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2565	}
		2566	# else put us there anyways for now #d#
		2567
		2568	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2569	} else {
		2570	($path, $x, $y) = (undef, undef, undef);
		2571	}
		2572	}
		2573
		2574	my $map = eval {
		2575	my $map = defined $path ? cf::map::find $path : undef;
		2576
		2577	if ($map) {
1784	$map = $map->customise_for ($self) if $map;	2578	$map = $map->customise_for ($self);
1785		2579	$map = $check->($map) if $check && $map;
1786	# warn "entering ", $map->path, " at ($x, $y)\n"	2580	} else {
1787	# if $map;
1788
1789	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2581	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2582	}
1790		2583
		2584	$map
		2585	};
		2586
		2587	if ($@) {
		2588	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2589	LOG llevError | logBacktrace, Carp::longmess $@;
		2590	}
		2591
		2592	if ($gen == $self->{_goto_generation}) {
		2593	delete $self->{_goto_generation};
1791	$self->leave_link ($map, $x, $y);	2594	$self->leave_link ($map, $x, $y);
		2595	}
		2596
		2597	$done->() if $done;
1792	})->prio (1);	2598	})->prio (1);
1793	}	2599	}
1794		2600
1795	=item $player_object->enter_exit ($exit_object)	2601	=item $player_object->enter_exit ($exit_object)
1796		2602
…		…
1798		2604
1799	sub parse_random_map_params {	2605	sub parse_random_map_params {
1800	my ($spec) = @_;	2606	my ($spec) = @_;
1801		2607
1802	my $rmp = { # defaults	2608	my $rmp = { # defaults
1803	xsize => 10,	2609	xsize => (cf::rndm 15, 40),
1804	ysize => 10,	2610	ysize => (cf::rndm 15, 40),
		2611	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2612	#layout => string,
1805	};	2613	};
1806		2614
1807	for (split /\n/, $spec) {	2615	for (split /\n/, $spec) {
1808	my ($k, $v) = split /\s+/, $_, 2;	2616	my ($k, $v) = split /\s+/, $_, 2;
1809		2617
…		…
1813	$rmp	2621	$rmp
1814	}	2622	}
1815		2623
1816	sub prepare_random_map {	2624	sub prepare_random_map {
1817	my ($exit) = @_;	2625	my ($exit) = @_;
		2626
		2627	my $guard = cf::lock_acquire "exit_prepare:$exit";
1818		2628
1819	# all this does is basically replace the /! path by	2629	# all this does is basically replace the /! path by
1820	# a new random map path (?random/...) with a seed	2630	# a new random map path (?random/...) with a seed
1821	# that depends on the exit object	2631	# that depends on the exit object
1822		2632
1823	my $rmp = parse_random_map_params $exit->msg;	2633	my $rmp = parse_random_map_params $exit->msg;
1824		2634
1825	if ($exit->map) {	2635	if ($exit->map) {
1826	$rmp->{region} = $exit->map->region_name;	2636	$rmp->{region} = $exit->region->name;
1827	$rmp->{origin_map} = $exit->map->path;	2637	$rmp->{origin_map} = $exit->map->path;
1828	$rmp->{origin_x} = $exit->x;	2638	$rmp->{origin_x} = $exit->x;
1829	$rmp->{origin_y} = $exit->y;	2639	$rmp->{origin_y} = $exit->y;
1830	}	2640	}
1831		2641
1832	$rmp->{random_seed} ||= $exit->random_seed;	2642	$rmp->{random_seed} ||= $exit->random_seed;
1833		2643
1834	my $data = cf::to_json $rmp;	2644	my $data = cf::encode_json $rmp;
1835	my $md5 = Digest::MD5::md5_hex $data;	2645	my $md5 = Digest::MD5::md5_hex $data;
		2646	my $meta = "$RANDOMDIR/$md5.meta";
1836		2647
1837	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2648	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1838	aio_write $fh, 0, (length $data), $data, 0;	2649	aio_write $fh, 0, (length $data), $data, 0;
		2650	undef $fh;
		2651	aio_rename "$meta~", $meta;
1839		2652
1840	$exit->slaying ("?random/$md5");	2653	$exit->slaying ("?random/$md5");
1841	$exit->msg (undef);	2654	$exit->msg (undef);
1842	}	2655	}
1843	}	2656	}
…		…
1845	sub cf::object::player::enter_exit {	2658	sub cf::object::player::enter_exit {
1846	my ($self, $exit) = @_;	2659	my ($self, $exit) = @_;
1847		2660
1848	return unless $self->type == cf::PLAYER;	2661	return unless $self->type == cf::PLAYER;
1849		2662
		2663	if ($exit->slaying eq "/!") {
		2664	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2665	# the problem is that $exit might not survive long enough
		2666	# so it needs to be done right now, right here
		2667	cf::sync_job { prepare_random_map $exit };
		2668	}
		2669
		2670	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2671	my $hp = $exit->stats->hp;
		2672	my $sp = $exit->stats->sp;
		2673
1850	$self->enter_link;	2674	$self->enter_link;
1851		2675
		2676	# if exit is damned, update players death & WoR home-position
		2677	$self->contr->savebed ($slaying, $hp, $sp)
		2678	if $exit->flag (FLAG_DAMNED);
		2679
1852	(async {	2680	(async {
		2681	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2682
1853	$self->deactivate_recursive; # just to be sure	2683	$self->deactivate_recursive; # just to be sure
1854	unless (eval {	2684	unless (eval {
1855	prepare_random_map $exit	2685	$self->goto ($slaying, $hp, $sp);
1856	if $exit->slaying eq "/!";
1857
1858	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1859	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1860		2686
1861	1;	2687	1;
1862	}) {	2688	}) {
1863	$self->message ("Something went wrong deep within the crossfire server. "	2689	$self->message ("Something went wrong deep within the crossfire server. "
1864	. "I'll try to bring you back to the map you were before. "	2690	. "I'll try to bring you back to the map you were before. "
1865	. "Please report this to the dungeon master!",	2691	. "Please report this to the dungeon master!",
1866	cf::NDI_UNIQUE | cf::NDI_RED);	2692	cf::NDI_UNIQUE | cf::NDI_RED);
1867		2693
1868	warn "ERROR in enter_exit: $@";	2694	warn "ERROR in enter_exit: $@";
1869	$self->leave_link;	2695	$self->leave_link;
1870	}	2696	}
1871	})->prio (1);	2697	})->prio (1);
…		…
1884		2710
1885	sub cf::client::send_drawinfo {	2711	sub cf::client::send_drawinfo {
1886	my ($self, $text, $flags) = @_;	2712	my ($self, $text, $flags) = @_;
1887		2713
1888	utf8::encode $text;	2714	utf8::encode $text;
1889	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2715	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1890	}	2716	}
1891		2717
		2718	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2719
		2720	Send a drawinfo or msg packet to the client, formatting the msg for the
		2721	client if neccessary. C<$type> should be a string identifying the type of
		2722	the message, with C<log> being the default. If C<$color> is negative, suppress
		2723	the message unless the client supports the msg packet.
		2724
		2725	=cut
		2726
		2727	# non-persistent channels (usually the info channel)
		2728	our %CHANNEL = (
		2729	"c/identify" => {
		2730	id => "infobox",
		2731	title => "Identify",
		2732	reply => undef,
		2733	tooltip => "Items recently identified",
		2734	},
		2735	"c/examine" => {
		2736	id => "infobox",
		2737	title => "Examine",
		2738	reply => undef,
		2739	tooltip => "Signs and other items you examined",
		2740	},
		2741	"c/book" => {
		2742	id => "infobox",
		2743	title => "Book",
		2744	reply => undef,
		2745	tooltip => "The contents of a note or book",
		2746	},
		2747	"c/lookat" => {
		2748	id => "infobox",
		2749	title => "Look",
		2750	reply => undef,
		2751	tooltip => "What you saw there",
		2752	},
		2753	"c/who" => {
		2754	id => "infobox",
		2755	title => "Players",
		2756	reply => undef,
		2757	tooltip => "Shows players who are currently online",
		2758	},
		2759	"c/body" => {
		2760	id => "infobox",
		2761	title => "Body Parts",
		2762	reply => undef,
		2763	tooltip => "Shows which body parts you posess and are available",
		2764	},
		2765	"c/uptime" => {
		2766	id => "infobox",
		2767	title => "Uptime",
		2768	reply => undef,
		2769	tooltip => "How long the server has been running since last restart",
		2770	},
		2771	"c/mapinfo" => {
		2772	id => "infobox",
		2773	title => "Map Info",
		2774	reply => undef,
		2775	tooltip => "Information related to the maps",
		2776	},
		2777	);
		2778
		2779	sub cf::client::send_msg {
		2780	my ($self, $channel, $msg, $color, @extra) = @_;
		2781
		2782	$msg = $self->pl->expand_cfpod ($msg);
		2783
		2784	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2785
		2786	# check predefined channels, for the benefit of C
		2787	if ($CHANNEL{$channel}) {
		2788	$channel = $CHANNEL{$channel};
		2789
		2790	$self->ext_msg (channel_info => $channel)
		2791	if $self->can_msg;
		2792
		2793	$channel = $channel->{id};
		2794
		2795	} elsif (ref $channel) {
		2796	# send meta info to client, if not yet sent
		2797	unless (exists $self->{channel}{$channel->{id}}) {
		2798	$self->{channel}{$channel->{id}} = $channel;
		2799	$self->ext_msg (channel_info => $channel)
		2800	if $self->can_msg;
		2801	}
		2802
		2803	$channel = $channel->{id};
		2804	}
		2805
		2806	return unless @extra || length $msg;
		2807
		2808	if ($self->can_msg) {
		2809	# default colour, mask it out
		2810	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2811	if $color & cf::NDI_DEF;
		2812
		2813	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2814	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2815	} else {
		2816	if ($color >= 0) {
		2817	# replace some tags by gcfclient-compatible ones
		2818	for ($msg) {
		2819	1 while
		2820	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2821	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2822	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2823	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2824	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2825	}
		2826
		2827	$color &= cf::NDI_COLOR_MASK;
		2828
		2829	utf8::encode $msg;
		2830
		2831	if (0 && $msg =~ /\[/) {
		2832	# COMMAND/INFO
		2833	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2834	} else {
		2835	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2836	$self->send_packet ("drawinfo $color $msg")
		2837	}
		2838	}
		2839	}
		2840	}
		2841
		2842	=item $client->ext_msg ($type, @msg)
		2843
		2844	Sends an ext event to the client.
		2845
		2846	=cut
		2847
		2848	sub cf::client::ext_msg($$@) {
		2849	my ($self, $type, @msg) = @_;
		2850
		2851	if ($self->extcmd == 2) {
		2852	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2853	} elsif ($self->extcmd == 1) { # TODO: remove
		2854	push @msg, msgtype => "event_$type";
		2855	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2856	}
		2857	}
		2858
		2859	=item $client->ext_reply ($msgid, @msg)
		2860
		2861	Sends an ext reply to the client.
		2862
		2863	=cut
		2864
		2865	sub cf::client::ext_reply($$@) {
		2866	my ($self, $id, @msg) = @_;
		2867
		2868	if ($self->extcmd == 2) {
		2869	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2870	} elsif ($self->extcmd == 1) {
		2871	#TODO: version 1, remove
		2872	unshift @msg, msgtype => "reply", msgid => $id;
		2873	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2874	}
		2875	}
1892		2876
1893	=item $success = $client->query ($flags, "text", \&cb)	2877	=item $success = $client->query ($flags, "text", \&cb)
1894		2878
1895	Queues a query to the client, calling the given callback with	2879	Queues a query to the client, calling the given callback with
1896	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1897	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2881	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1898		2882
1899	Queries can fail, so check the return code. Or don't, as queries will become	2883	Queries can fail, so check the return code. Or don't, as queries will
1900	reliable at some point in the future.	2884	become reliable at some point in the future.
1901		2885
1902	=cut	2886	=cut
1903		2887
1904	sub cf::client::query {	2888	sub cf::client::query {
1905	my ($self, $flags, $text, $cb) = @_;	2889	my ($self, $flags, $text, $cb) = @_;
…		…
1913	utf8::encode $text;	2897	utf8::encode $text;
1914	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1915		2899
1916	$self->send_packet ($self->{query_queue}[0][0])	2900	$self->send_packet ($self->{query_queue}[0][0])
1917	if @{ $self->{query_queue} } == 1;	2901	if @{ $self->{query_queue} } == 1;
		2902
		2903	1
1918	}	2904	}
1919		2905
1920	cf::client->attach (	2906	cf::client->attach (
		2907	on_connect => sub {
		2908	my ($ns) = @_;
		2909
		2910	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2911	},
1921	on_reply => sub {	2912	on_reply => sub {
1922	my ($ns, $msg) = @_;	2913	my ($ns, $msg) = @_;
1923		2914
1924	# this weird shuffling is so that direct followup queries	2915	# this weird shuffling is so that direct followup queries
1925	# get handled first	2916	# get handled first
1926	my $queue = delete $ns->{query_queue}	2917	my $queue = delete $ns->{query_queue}
1927	or return; # be conservative, not sure how that can happen, but we saw a crash here	2918	or return; # be conservative, not sure how that can happen, but we saw a crash here
1928		2919
1929	(shift @$queue)->[1]->($msg);	2920	(shift @$queue)->[1]->($msg);
		2921	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1930		2922
1931	push @{ $ns->{query_queue} }, @$queue;	2923	push @{ $ns->{query_queue} }, @$queue;
1932		2924
1933	if (@{ $ns->{query_queue} } == @$queue) {	2925	if (@{ $ns->{query_queue} } == @$queue) {
1934	if (@$queue) {	2926	if (@$queue) {
…		…
1936	} else {	2928	} else {
1937	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2929	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1938	}	2930	}
1939	}	2931	}
1940	},	2932	},
		2933	on_exticmd => sub {
		2934	my ($ns, $buf) = @_;
		2935
		2936	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2937
		2938	if (ref $msg) {
		2939	my ($type, $reply, @payload) =
		2940	"ARRAY" eq ref $msg
		2941	? @$msg
		2942	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2943
		2944	my @reply;
		2945
		2946	if (my $cb = $EXTICMD{$type}) {
		2947	@reply = $cb->($ns, @payload);
		2948	}
		2949
		2950	$ns->ext_reply ($reply, @reply)
		2951	if $reply;
		2952
		2953	} else {
		2954	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2955	}
		2956
		2957	cf::override;
		2958	},
1941	);	2959	);
1942		2960
1943	=item $client->async (\&cb)	2961	=item $client->async (\&cb)
1944		2962
1945	Create a new coroutine, running the specified callback. The coroutine will	2963	Create a new coroutine, running the specified callback. The coroutine will
…		…
1986	our $safe = new Safe "safe";	3004	our $safe = new Safe "safe";
1987	our $safe_hole = new Safe::Hole;	3005	our $safe_hole = new Safe::Hole;
1988		3006
1989	$SIG{FPE} = 'IGNORE';	3007	$SIG{FPE} = 'IGNORE';
1990		3008
1991	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3009	$safe->permit_only (Opcode::opset qw(
		3010	:base_core :base_mem :base_orig :base_math
		3011	grepstart grepwhile mapstart mapwhile
		3012	sort time
		3013	));
1992		3014
1993	# here we export the classes and methods available to script code	3015	# here we export the classes and methods available to script code
1994		3016
1995	=pod	3017	=pod
1996		3018
1997	The following fucntions and emthods are available within a safe environment:	3019	The following functions and methods are available within a safe environment:
1998		3020
1999	cf::object contr pay_amount pay_player map	3021	cf::object
		3022	contr pay_amount pay_player map x y force_find force_add destroy
		3023	insert remove name archname title slaying race decrease_ob_nr
		3024
2000	cf::object::player player	3025	cf::object::player
2001	cf::player peaceful	3026	player
2002	cf::map trigger	3027
		3028	cf::player
		3029	peaceful
		3030
		3031	cf::map
		3032	trigger
2003		3033
2004	=cut	3034	=cut
2005		3035
2006	for (	3036	for (
2007	["cf::object" => qw(contr pay_amount pay_player map)],	3037	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3038	insert remove inv name archname title slaying race
		3039	decrease_ob_nr destroy)],
2008	["cf::object::player" => qw(player)],	3040	["cf::object::player" => qw(player)],
2009	["cf::player" => qw(peaceful)],	3041	["cf::player" => qw(peaceful)],
2010	["cf::map" => qw(trigger)],	3042	["cf::map" => qw(trigger)],
2011	) {	3043	) {
2012	no strict 'refs';	3044	no strict 'refs';
…		…
2083	=back	3115	=back
2084		3116
2085	=cut	3117	=cut
2086		3118
2087	#############################################################################	3119	#############################################################################
		3120	# the server's init and main functions
2088		3121
2089	=head2 EXTENSION DATABASE SUPPORT	3122	sub load_facedata($) {
		3123	my ($path) = @_;
2090		3124
2091	Crossfire maintains a very simple database for extension use. It can	3125	# HACK to clear player env face cache, we need some signal framework
2092	currently store anything that can be serialised using Storable, which	3126	# for this (global event?)
2093	excludes objects.	3127	%ext::player_env::MUSIC_FACE_CACHE = ();
2094		3128
2095	The parameter C<$family> should best start with the name of the extension	3129	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2096	using it, it should be unique.
2097		3130
2098	=over 4	3131	warn "loading facedata from $path\n";
2099		3132
2100	=item $hashref = cf::db_get $family	3133	my $facedata;
		3134	0 < aio_load $path, $facedata
		3135	or die "$path: $!";
2101		3136
2102	Return a hashref for use by the extension C<$family>, which can be	3137	$facedata = Coro::Storable::thaw $facedata;
2103	modified. After modifications, you have to call C<cf::db_dirty> or
2104	C<cf::db_sync>.
2105		3138
2106	=item $value = cf::db_get $family => $key	3139	$facedata->{version} == 2
		3140	or cf::cleanup "$path: version mismatch, cannot proceed.";
2107		3141
2108	Returns a single value from the database	3142	# patch in the exptable
2109		3143	$facedata->{resource}{"res/exp_table"} = {
2110	=item cf::db_put $family => $hashref	3144	type => FT_RSRC,
2111		3145	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2112	Stores the given family hashref into the database. Updates are delayed, if
2113	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2114
2115	=item cf::db_put $family => $key => $value
2116
2117	Stores the given C<$value> in the family hash. Updates are delayed, if you
2118	want the data to be synced to disk immediately, use C<cf::db_sync>.
2119
2120	=item cf::db_dirty
2121
2122	Marks the database as dirty, to be updated at a later time.
2123
2124	=item cf::db_sync
2125
2126	Immediately write the database to disk I<if it is dirty>.
2127
2128	=cut
2129
2130	our $DB;
2131
2132	{
2133	my $path = cf::localdir . "/database.pst";
2134
2135	sub db_load() {
2136	$DB = stat $path ? Storable::retrieve $path : { };
2137	}
2138
2139	my $pid;
2140
2141	sub db_save() {
2142	waitpid $pid, 0 if $pid;
2143	if (0 == ($pid = fork)) {
2144	$DB->{_meta}{version} = 1;
2145	Storable::nstore $DB, "$path~";
2146	rename "$path~", $path;
2147	cf::_exit 0 if defined $pid;
2148	}
2149	}
2150
2151	my $dirty;
2152
2153	sub db_sync() {
2154	db_save if $dirty;
2155	undef $dirty;
2156	}
2157
2158	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2159	db_sync;
2160	});	3146	};
		3147	cf::cede_to_tick;
2161		3148
2162	sub db_dirty() {
2163	$dirty = 1;
2164	$idle->start;
2165	}	3149	{
		3150	my $faces = $facedata->{faceinfo};
2166		3151
2167	sub db_get($;$) {	3152	while (my ($face, $info) = each %$faces) {
2168	@_ >= 2	3153	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2169	? $DB->{$_[0]}{$_[1]}	3154	cf::face::set_visibility $idx, $info->{visibility};
2170	: ($DB->{$_[0]} ||= { })	3155	cf::face::set_magicmap $idx, $info->{magicmap};
2171	}	3156	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3157	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2172		3158
2173	sub db_put($$;$) {	3159	cf::cede_to_tick;
2174	if (@_ >= 3) {
2175	$DB->{$_[0]}{$_[1]} = $_[2];
2176	} else {
2177	$DB->{$_[0]} = $_[1];
2178	}
2179	db_dirty;
2180	}
2181
2182	cf::global->attach (
2183	prio => 10000,
2184	on_cleanup => sub {
2185	db_sync;
2186	},	3160	}
2187	);
2188	}
2189		3161
2190	#############################################################################	3162	while (my ($face, $info) = each %$faces) {
2191	# the server's main()	3163	next unless $info->{smooth};
		3164	my $idx = cf::face::find $face
		3165	or next;
		3166	if (my $smooth = cf::face::find $info->{smooth}) {
		3167	cf::face::set_smooth $idx, $smooth;
		3168	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3169	} else {
		3170	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3171	}
2192		3172
2193	sub cfg_load {	3173	cf::cede_to_tick;
		3174	}
		3175	}
		3176
		3177	{
		3178	my $anims = $facedata->{animinfo};
		3179
		3180	while (my ($anim, $info) = each %$anims) {
		3181	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3182	cf::cede_to_tick;
		3183	}
		3184
		3185	cf::anim::invalidate_all; # d'oh
		3186	}
		3187
		3188	{
		3189	# TODO: for gcfclient pleasure, we should give resources
		3190	# that gcfclient doesn't grok a >10000 face index.
		3191	my $res = $facedata->{resource};
		3192
		3193	my $soundconf = delete $res->{"res/sound.conf"};
		3194
		3195	while (my ($name, $info) = each %$res) {
		3196	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3197	my $data;
		3198
		3199	if ($info->{type} & 1) {
		3200	# prepend meta info
		3201
		3202	my $meta = $enc->encode ({
		3203	name => $name,
		3204	%{ $info->{meta} || {} },
		3205	});
		3206
		3207	$data = pack "(w/a*)*", $meta, $info->{data};
		3208	} else {
		3209	$data = $info->{data};
		3210	}
		3211
		3212	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3213	cf::face::set_type $idx, $info->{type};
		3214
		3215	cf::cede_to_tick;
		3216	}
		3217
		3218	if ($soundconf) {
		3219	$soundconf = $enc->decode (delete $soundconf->{data});
		3220
		3221	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3222	my $sound = $soundconf->{compat}[$_]
		3223	or next;
		3224
		3225	my $face = cf::face::find "sound/$sound->[1]";
		3226	cf::sound::set $sound->[0] => $face;
		3227	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3228	}
		3229
		3230	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3231	my $face = cf::face::find "sound/$v";
		3232	cf::sound::set $k => $face;
		3233	}
		3234	}
		3235	}
		3236
		3237	1
		3238	}
		3239
		3240	register_exticmd fx_want => sub {
		3241	my ($ns, $want) = @_;
		3242
		3243	while (my ($k, $v) = each %$want) {
		3244	$ns->fx_want ($k, $v);
		3245	}
		3246	};
		3247
		3248	sub reload_regions {
		3249	# HACK to clear player env face cache, we need some signal framework
		3250	# for this (global event?)
		3251	%ext::player_env::MUSIC_FACE_CACHE = ();
		3252
		3253	load_resource_file "$MAPDIR/regions"
		3254	or die "unable to load regions file\n";
		3255
		3256	for (cf::region::list) {
		3257	$_->{match} = qr/$_->{match}/
		3258	if exists $_->{match};
		3259	}
		3260	}
		3261
		3262	sub reload_facedata {
		3263	load_facedata "$DATADIR/facedata"
		3264	or die "unable to load facedata\n";
		3265	}
		3266
		3267	sub reload_archetypes {
		3268	load_resource_file "$DATADIR/archetypes"
		3269	or die "unable to load archetypes\n";
		3270	#d# NEED to laod twice to resolve forward references
		3271	# this really needs to be done in an extra post-pass
		3272	# (which needs to be synchronous, so solve it differently)
		3273	load_resource_file "$DATADIR/archetypes"
		3274	or die "unable to load archetypes\n";
		3275	}
		3276
		3277	sub reload_treasures {
		3278	load_resource_file "$DATADIR/treasures"
		3279	or die "unable to load treasurelists\n";
		3280	}
		3281
		3282	sub reload_resources {
		3283	warn "reloading resource files...\n";
		3284
		3285	reload_regions;
		3286	reload_facedata;
		3287	#reload_archetypes;#d#
		3288	reload_archetypes;
		3289	reload_treasures;
		3290
		3291	warn "finished reloading resource files\n";
		3292	}
		3293
		3294	sub init {
		3295	reload_resources;
		3296	}
		3297
		3298	sub reload_config {
2194	open my $fh, "<:utf8", cf::confdir . "/config"	3299	open my $fh, "<:utf8", "$CONFDIR/config"
2195	or return;	3300	or return;
2196		3301
2197	local $/;	3302	local $/;
2198	*CFG = YAML::Syck::Load <$fh>;	3303	*CFG = YAML::Syck::Load <$fh>;
2199		3304
…		…
2213		3318
2214	sub main {	3319	sub main {
2215	# we must not ever block the main coroutine	3320	# we must not ever block the main coroutine
2216	local $Coro::idle = sub {	3321	local $Coro::idle = sub {
2217	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3322	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2218	async { Event::one_event };	3323	(async {
		3324	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3325	EV::loop EV::LOOP_ONESHOT;
		3326	})->prio (Coro::PRIO_MAX);
2219	};	3327	};
2220		3328
2221	cfg_load;	3329	reload_config;
2222	db_load;	3330	db_init;
2223	load_extensions;	3331	load_extensions;
		3332
		3333	$TICK_WATCHER->start;
		3334	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2224	Event::loop;	3335	EV::loop;
2225	}	3336	}
2226		3337
2227	#############################################################################	3338	#############################################################################
2228	# initialisation and cleanup	3339	# initialisation and cleanup
2229		3340
2230	# install some emergency cleanup handlers	3341	# install some emergency cleanup handlers
2231	BEGIN {	3342	BEGIN {
		3343	our %SIGWATCHER = ();
2232	for my $signal (qw(INT HUP TERM)) {	3344	for my $signal (qw(INT HUP TERM)) {
2233	Event->signal (	3345	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2234	data => WF_AUTOCANCEL,
2235	signal => $signal,
2236	cb => sub {
2237	cf::cleanup "SIG$signal";	3346	cf::cleanup "SIG$signal";
2238	},
2239	);	3347	};
		3348	}
		3349	}
		3350
		3351	sub write_runtime {
		3352	my $runtime = "$LOCALDIR/runtime";
		3353
		3354	# first touch the runtime file to show we are still running:
		3355	# the fsync below can take a very very long time.
		3356
		3357	IO::AIO::aio_utime $runtime, undef, undef;
		3358
		3359	my $guard = cf::lock_acquire "write_runtime";
		3360
		3361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3362	or return;
		3363
		3364	my $value = $cf::RUNTIME + 90 + 10;
		3365	# 10 is the runtime save interval, for a monotonic clock
		3366	# 60 allows for the watchdog to kill the server.
		3367
		3368	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3369	and return;
		3370
		3371	# always fsync - this file is important
		3372	aio_fsync $fh
		3373	and return;
		3374
		3375	# touch it again to show we are up-to-date
		3376	aio_utime $fh, undef, undef;
		3377
		3378	close $fh
		3379	or return;
		3380
		3381	aio_rename "$runtime~", $runtime
		3382	and return;
		3383
		3384	warn "runtime file written.\n";
		3385
2240	}	3386	1
2241	}	3387	}
2242		3388
2243	sub emergency_save() {	3389	sub emergency_save() {
2244	my $freeze_guard = cf::freeze_mainloop;	3390	my $freeze_guard = cf::freeze_mainloop;
2245		3391
…		…
2251	# and maps saved/destroyed asynchronously.	3397	# and maps saved/destroyed asynchronously.
2252	warn "begin emergency player save\n";	3398	warn "begin emergency player save\n";
2253	for my $login (keys %cf::PLAYER) {	3399	for my $login (keys %cf::PLAYER) {
2254	my $pl = $cf::PLAYER{$login} or next;	3400	my $pl = $cf::PLAYER{$login} or next;
2255	$pl->valid or next;	3401	$pl->valid or next;
		3402	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2256	$pl->save;	3403	$pl->save;
2257	}	3404	}
2258	warn "end emergency player save\n";	3405	warn "end emergency player save\n";
2259		3406
2260	warn "begin emergency map save\n";	3407	warn "begin emergency map save\n";
…		…
2262	my $map = $cf::MAP{$path} or next;	3409	my $map = $cf::MAP{$path} or next;
2263	$map->valid or next;	3410	$map->valid or next;
2264	$map->save;	3411	$map->save;
2265	}	3412	}
2266	warn "end emergency map save\n";	3413	warn "end emergency map save\n";
		3414
		3415	warn "begin emergency database checkpoint\n";
		3416	BDB::db_env_txn_checkpoint $DB_ENV;
		3417	warn "end emergency database checkpoint\n";
2267	};	3418	};
2268		3419
2269	warn "leave emergency perl save\n";	3420	warn "leave emergency perl save\n";
2270	}	3421	}
2271		3422
		3423	sub post_cleanup {
		3424	my ($make_core) = @_;
		3425
		3426	warn Carp::longmess "post_cleanup backtrace"
		3427	if $make_core;
		3428	}
		3429
2272	sub reload() {	3430	sub do_reload_perl() {
2273	# can/must only be called in main	3431	# can/must only be called in main
2274	if ($Coro::current != $Coro::main) {	3432	if ($Coro::current != $Coro::main) {
2275	warn "can only reload from main coroutine\n";	3433	warn "can only reload from main coroutine";
2276	return;	3434	return;
2277	}	3435	}
2278		3436
2279	warn "reloading...";	3437	warn "reloading...";
2280		3438
2281	warn "freezing server";	3439	warn "entering sync_job";
2282	my $guard = freeze_mainloop;	3440
		3441	cf::sync_job {
		3442	cf::write_runtime; # external watchdog should not bark
2283	cf::emergency_save;	3443	cf::emergency_save;
		3444	cf::write_runtime; # external watchdog should not bark
2284		3445
2285	warn "sync database to disk";	3446	warn "syncing database to disk";
2286	cf::db_sync;	3447	BDB::db_env_txn_checkpoint $DB_ENV;
2287	IO::AIO::flush;
2288		3448
2289	eval {
2290	# if anything goes wrong in here, we should simply crash as we already saved	3449	# if anything goes wrong in here, we should simply crash as we already saved
2291		3450
2292	warn "cancel all watchers";	3451	warn "flushing outstanding aio requests";
2293	for (Event::all_watchers) {	3452	for (;;) {
2294	$_->cancel if $_->data & WF_AUTOCANCEL;	3453	BDB::flush;
		3454	IO::AIO::flush;
		3455	Coro::cede_notself;
		3456	last unless IO::AIO::nreqs || BDB::nreqs;
		3457	warn "iterate...";
2295	}	3458	}
2296		3459
		3460	++$RELOAD;
		3461
2297	warn "cancel all extension coros";	3462	warn "cancelling all extension coros";
2298	$_->cancel for values %EXT_CORO;	3463	$_->cancel for values %EXT_CORO;
2299	%EXT_CORO = ();	3464	%EXT_CORO = ();
2300		3465
2301	warn "remove commands";	3466	warn "removing commands";
2302	%COMMAND = ();	3467	%COMMAND = ();
2303		3468
2304	warn "remove ext commands";	3469	warn "removing ext/exti commands";
2305	%EXTCMD = ();	3470	%EXTCMD = ();
		3471	%EXTICMD = ();
2306		3472
2307	warn "unload/nuke all extensions";	3473	warn "unloading/nuking all extensions";
2308	for my $pkg (@EXTS) {	3474	for my $pkg (@EXTS) {
2309	warn "... unloading $pkg";	3475	warn "... unloading $pkg";
2310		3476
2311	if (my $cb = $pkg->can ("unload")) {	3477	if (my $cb = $pkg->can ("unload")) {
2312	eval {	3478	eval {
…		…
2317		3483
2318	warn "... nuking $pkg";	3484	warn "... nuking $pkg";
2319	Symbol::delete_package $pkg;	3485	Symbol::delete_package $pkg;
2320	}	3486	}
2321		3487
2322	warn "unload all perl modules loaded from $LIBDIR";	3488	warn "unloading all perl modules loaded from $LIBDIR";
2323	while (my ($k, $v) = each %INC) {	3489	while (my ($k, $v) = each %INC) {
2324	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3490	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2325		3491
2326	warn "removing <$k>";	3492	warn "... unloading $k";
2327	delete $INC{$k};	3493	delete $INC{$k};
2328		3494
2329	$k =~ s/\.pm$//;	3495	$k =~ s/\.pm$//;
2330	$k =~ s/\//::/g;	3496	$k =~ s/\//::/g;
2331		3497
…		…
2334	}	3500	}
2335		3501
2336	Symbol::delete_package $k;	3502	Symbol::delete_package $k;
2337	}	3503	}
2338		3504
2339	warn "get rid of safe::, as good as possible";	3505	warn "getting rid of safe::, as good as possible";
2340	Symbol::delete_package "safe::$_"	3506	Symbol::delete_package "safe::$_"
2341	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3507	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2342		3508
2343	warn "unload cf.pm \"a bit\"";	3509	warn "unloading cf.pm \"a bit\"";
2344	delete $INC{"cf.pm"};	3510	delete $INC{"cf.pm"};
		3511	delete $INC{"cf/pod.pm"};
2345		3512
2346	# don't, removes xs symbols, too,	3513	# don't, removes xs symbols, too,
2347	# and global variables created in xs	3514	# and global variables created in xs
2348	#Symbol::delete_package __PACKAGE__;	3515	#Symbol::delete_package __PACKAGE__;
2349		3516
		3517	warn "unload completed, starting to reload now";
		3518
2350	warn "reloading cf.pm";	3519	warn "reloading cf.pm";
2351	require cf;	3520	require cf;
2352	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3521	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2353		3522
2354	warn "load config and database again";	3523	warn "loading config and database again";
2355	cf::cfg_load;	3524	cf::reload_config;
2356	cf::db_load;
2357		3525
2358	warn "load extensions";	3526	warn "loading extensions";
2359	cf::load_extensions;	3527	cf::load_extensions;
2360		3528
2361	warn "reattach attachments to objects/players";	3529	warn "reattaching attachments to objects/players";
2362	_global_reattach;	3530	_global_reattach; # objects, sockets
2363	warn "reattach attachments to maps";	3531	warn "reattaching attachments to maps";
2364	reattach $_ for values %MAP;	3532	reattach $_ for values %MAP;
2365	};	3533	warn "reattaching attachments to players";
		3534	reattach $_ for values %PLAYER;
2366		3535
2367	if ($@) {	3536	warn "leaving sync_job";
		3537
		3538	1
		3539	} or do {
2368	warn $@;	3540	warn $@;
2369	warn "error while reloading, exiting.";	3541	warn "error while reloading, exiting.";
2370	exit 1;	3542	exit 1;
2371	}	3543	};
2372		3544
2373	warn "reloaded";	3545	warn "reloaded";
2374	};	3546	};
2375		3547
		3548	our $RELOAD_WATCHER; # used only during reload
		3549
		3550	sub reload_perl() {
		3551	# doing reload synchronously and two reloads happen back-to-back,
		3552	# coro crashes during coro_state_free->destroy here.
		3553
		3554	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3555	undef $RELOAD_WATCHER;
		3556	do_reload_perl;
		3557	};
		3558	}
		3559
2376	register_command "reload" => sub {	3560	register_command "reload" => sub {
2377	my ($who, $arg) = @_;	3561	my ($who, $arg) = @_;
2378		3562
2379	if ($who->flag (FLAG_WIZ)) {	3563	if ($who->flag (FLAG_WIZ)) {
2380	$who->message ("start of reload.");
2381	reload;
2382	$who->message ("end of reload.");	3564	$who->message ("reloading server.");
		3565	async {
		3566	$Coro::current->{desc} = "perl_reload";
		3567	reload_perl;
		3568	};
2383	}	3569	}
2384	};	3570	};
2385		3571
2386	unshift @INC, $LIBDIR;	3572	unshift @INC, $LIBDIR;
2387		3573
2388	$TICK_WATCHER = Event->timer (	3574	my $bug_warning = 0;
2389	reentrant => 0,
2390	prio => 0,
2391	at => $NEXT_TICK || $TICK,
2392	data => WF_AUTOCANCEL,
2393	cb => sub {
2394	$NOW = Event::time;
2395		3575
		3576	our @WAIT_FOR_TICK;
		3577	our @WAIT_FOR_TICK_BEGIN;
		3578
		3579	sub wait_for_tick {
		3580	return unless $TICK_WATCHER->is_active;
		3581	return if $Coro::current == $Coro::main;
		3582
		3583	my $signal = new Coro::Signal;
		3584	push @WAIT_FOR_TICK, $signal;
		3585	$signal->wait;
		3586	}
		3587
		3588	sub wait_for_tick_begin {
		3589	return unless $TICK_WATCHER->is_active;
		3590	return if $Coro::current == $Coro::main;
		3591
		3592	my $signal = new Coro::Signal;
		3593	push @WAIT_FOR_TICK_BEGIN, $signal;
		3594	$signal->wait;
		3595	}
		3596
		3597	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3598	if ($Coro::current != $Coro::main) {
		3599	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3600	unless ++$bug_warning > 10;
		3601	return;
		3602	}
		3603
		3604	$NOW = $tick_start = EV::now;
		3605
2396	cf::server_tick; # one server iteration	3606	cf::server_tick; # one server iteration
		3607
2397	$RUNTIME += $TICK;	3608	$RUNTIME += $TICK;
2398	$NEXT_TICK += $TICK;	3609	$NEXT_TICK = $_[0]->at;
2399		3610
2400	$WAIT_FOR_TICK->broadcast;	3611	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2401	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3612	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2402		3613	Coro::async_pool {
2403	# if we are delayed by four ticks or more, skip them all	3614	$Coro::current->{desc} = "runtime saver";
2404	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2405
2406	$TICK_WATCHER->at ($NEXT_TICK);
2407	$TICK_WATCHER->start;
2408	},
2409	);
2410
2411	IO::AIO::max_poll_time $TICK * 0.2;
2412
2413	$AIO_POLL_WATCHER = Event->io (
2414	fd => IO::AIO::poll_fileno,
2415	poll => 'r',
2416	prio => 5,
2417	data => WF_AUTOCANCEL,
2418	cb => \&IO::AIO::poll_cb,
2419	);
2420
2421	$WRITE_RUNTIME_WATCHER = Event->timer (
2422	data => WF_AUTOCANCEL,
2423	after => 0,
2424	interval => 10,
2425	cb => sub {
2426	(Coro::unblock_sub {
2427	write_runtime	3615	write_runtime
2428	or warn "ERROR: unable to write runtime file: $!";	3616	or warn "ERROR: unable to write runtime file: $!";
2429	})->();	3617	};
2430	},	3618	}
2431	);	3619
		3620	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3621	$sig->send;
		3622	}
		3623	while (my $sig = shift @WAIT_FOR_TICK) {
		3624	$sig->send;
		3625	}
		3626
		3627	$LOAD = ($NOW - $tick_start) / $TICK;
		3628	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3629
		3630	_post_tick;
		3631	};
		3632	$TICK_WATCHER->priority (EV::MAXPRI);
		3633
		3634	{
		3635	# configure BDB
		3636
		3637	BDB::min_parallel 8;
		3638	BDB::max_poll_reqs $TICK * 0.1;
		3639	$Coro::BDB::WATCHER->priority (1);
		3640
		3641	unless ($DB_ENV) {
		3642	$DB_ENV = BDB::db_env_create;
		3643	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3644	| BDB::LOG_AUTOREMOVE, 1);
		3645	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3646	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3647
		3648	cf::sync_job {
		3649	eval {
		3650	BDB::db_env_open
		3651	$DB_ENV,
		3652	$BDBDIR,
		3653	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3654	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3655	0666;
		3656
		3657	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3658	};
		3659
		3660	cf::cleanup "db_env_open(db): $@" if $@;
		3661	};
		3662	}
		3663
		3664	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3665	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3666	};
		3667	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3668	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3669	};
		3670	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3671	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3672	};
		3673	}
		3674
		3675	{
		3676	# configure IO::AIO
		3677
		3678	IO::AIO::min_parallel 8;
		3679	IO::AIO::max_poll_time $TICK * 0.1;
		3680	$Coro::AIO::WATCHER->priority (1);
		3681	}
		3682
		3683	my $_log_backtrace;
		3684
		3685	sub _log_backtrace {
		3686	my ($msg, @addr) = @_;
		3687
		3688	$msg =~ s/\n//;
		3689
		3690	# limit the # of concurrent backtraces
		3691	if ($_log_backtrace < 2) {
		3692	++$_log_backtrace;
		3693	async {
		3694	$Coro::current->{desc} = "abt $msg";
		3695
		3696	my @bt = fork_call {
		3697	@addr = map { sprintf "%x", $_ } @addr;
		3698	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3699	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3700	or die "addr2line: $!";
		3701
		3702	my @funcs;
		3703	my @res = <$fh>;
		3704	chomp for @res;
		3705	while (@res) {
		3706	my ($func, $line) = splice @res, 0, 2, ();
		3707	push @funcs, "[$func] $line";
		3708	}
		3709
		3710	@funcs
		3711	};
		3712
		3713	LOG llevInfo, "[ABT] $msg\n";
		3714	LOG llevInfo, "[ABT] $_\n" for @bt;
		3715	--$_log_backtrace;
		3716	};
		3717	} else {
		3718	LOG llevInfo, "[ABT] $msg\n";
		3719	LOG llevInfo, "[ABT] [suppressed]\n";
		3720	}
		3721	}
		3722
		3723	# load additional modules
		3724	use cf::pod;
2432		3725
2433	END { cf::emergency_save }	3726	END { cf::emergency_save }
2434		3727
2435	1	3728	1
2436		3729

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