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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.221 by pippijn, Fri Mar 2 13:32:52 2007 UTC vs.
Revision 1.362 by root, Mon Sep 10 12:44:06 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 Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.5 ();	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
20	use BDB ();	27	use BDB ();
21	use Data::Dumper;	28	use Data::Dumper;
22	use Digest::MD5;	29	use Digest::MD5;
23	use Fcntl;	30	use Fcntl;
		31	use YAML::Syck ();
24	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
25	use YAML::Syck ();
26	use Time::HiRes;	33	use Time::HiRes;
27	use Compress::LZF;	34	use Compress::LZF;
		35	use Digest::MD5 ();
28		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		42
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		44
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
37		47
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		49
		50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		51
40	our %COMMAND = ();	52	our %COMMAND = ();
41	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
42		54
43	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
47		60
		61	our $RELOAD; # number of reloads so far
48	our @EVENT;	62	our @EVENT;
49	our $LIBDIR = datadir . "/ext";
50		63
51	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
52	our $TICK_WATCHER;	77	our $TICK_WATCHER;
53	our $AIO_POLL_WATCHER;	78	our $AIO_POLL_WATCHER;
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	80	our $NEXT_TICK;
56	our $NOW;	81	our $NOW;
…		…
62	our %CFG;	87	our %CFG;
63		88
64	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	90	our $RUNTIME;
66		91
67	our %PLAYER; # all users	92	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	93	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	94	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		95
76	# used to convert map paths into valid unix filenames by replacing / by ∕	96	# used to convert map paths into valid unix filenames by replacing / by ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
		102
79	binmode STDOUT;	103	binmode STDOUT;
80	binmode STDERR;	104	binmode STDERR;
81		105
82	# read virtual server time, if available	106	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
84	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
85	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
86	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
87	}	111	}
88		112
89	mkdir cf::localdir;	113	mkdir $_
90	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
91	mkdir cf::localdir . "/" . cf::tmpdir;
92	mkdir cf::localdir . "/" . cf::uniquedir;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		115
96	our $EMERGENCY_POSITION;	116	our $EMERGENCY_POSITION;
97		117
98	sub cf::map::normalise;	118	sub cf::map::normalise;
99		119
…		…
110	=item $cf::RUNTIME	130	=item $cf::RUNTIME
111		131
112	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
113	every server tick.	133	every server tick.
114		134
115	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116		138
117	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
118	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
119		143
120	=item $cf::NOW	144	=item $cf::NOW
121		145
122	The time of the last (current) server tick.	146	The time of the last (current) server tick.
123		147
124	=item $cf::TICK	148	=item $cf::TICK
125		149
126	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
127		161
128	=item %cf::CFG	162	=item %cf::CFG
129		163
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
131	from wherever your confdir points to.	165	from wherever your confdir points to.
132		166
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	167	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		168
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	170	returns directly I<after> the tick processing (and consequently, can only wake one process
137	processing has been done. Call C<< ->wait >> on them to maximise the	171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.	172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
139		178
140	=back	179	=back
141		180
142	=cut	181	=cut
143		182
144	BEGIN {	183	BEGIN {
145	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	185	my $msg = join "", @_;
147	utf8::encode $msg;
148		186
149	$msg .= "\n"	187	$msg .= "\n"
150	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
151		191
152	LOG llevError, $msg;	192	LOG llevError, $msg;
153	};	193	};
154	}	194	}
155		195
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
162		203
163	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
164	# within the Safe compartment.	205	# within the Safe compartment.
165	for my $pkg (qw(	206	for my $pkg (qw(
166	cf::global cf::attachable	207	cf::global cf::attachable
…		…
174	}	215	}
175		216
176	$Event::DIED = sub {	217	$Event::DIED = sub {
177	warn "error in event callback: @_";	218	warn "error in event callback: @_";
178	};	219	};
		220
		221	#############################################################################
179		222
180	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
181		224
182	=over 4	225	=over 4
183		226
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	246	$d
204	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
205	}	248	}
206		249
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
210		251
211	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
212		253
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
221		255
222	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
223		257
224	=cut	258	=cut
225		259
226	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
228	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
229	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
230		264
231	=item cf::lock_wait $string	265	=item cf::lock_wait $string
232		266
233	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
234		268
…		…
237	Wait until the given lock is available and then acquires it and returns	271	Wait until the given lock is available and then acquires it and returns
238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	272	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
239	for example when the coroutine gets canceled), the lock is automatically	273	for example when the coroutine gets canceled), the lock is automatically
240	returned.	274	returned.
241		275
		276	Locks are *not* recursive, locking from the same coro twice results in a
		277	deadlocked coro.
		278
242	Lock names should begin with a unique identifier (for example, cf::map::find	279	Lock names should begin with a unique identifier (for example, cf::map::find
243	uses map_find and cf::map::load uses map_load).	280	uses map_find and cf::map::load uses map_load).
244		281
		282	=item $locked = cf::lock_active $string
		283
		284	Return true if the lock is currently active, i.e. somebody has locked it.
		285
245	=cut	286	=cut
246		287
247	our %LOCK;	288	our %LOCK;
		289	our %LOCKER;#d#
248		290
249	sub lock_wait($) {	291	sub lock_wait($) {
250	my ($key) = @_;	292	my ($key) = @_;
		293
		294	if ($LOCKER{$key} == $Coro::current) {#d#
		295	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		296	return;#d#
		297	}#d#
251		298
252	# wait for lock, if any	299	# wait for lock, if any
253	while ($LOCK{$key}) {	300	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;	301	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;	302	Coro::schedule;
…		…
261		308
262	# wait, to be sure we are not locked	309	# wait, to be sure we are not locked
263	lock_wait $key;	310	lock_wait $key;
264		311
265	$LOCK{$key} = [];	312	$LOCK{$key} = [];
		313	$LOCKER{$key} = $Coro::current;#d#
266		314
267	Coro::guard {	315	Coro::guard {
		316	delete $LOCKER{$key};#d#
268	# wake up all waiters, to be on the safe side	317	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };	318	$_->ready for @{ delete $LOCK{$key} };
270	}	319	}
		320	}
		321
		322	sub lock_active($) {
		323	my ($key) = @_;
		324
		325	! ! $LOCK{$key}
271	}	326	}
272		327
273	sub freeze_mainloop {	328	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	329	return unless $TICK_WATCHER->is_active;
275		330
…		…
278	};	333	};
279	$TICK_WATCHER->stop;	334	$TICK_WATCHER->stop;
280	$guard	335	$guard
281	}	336	}
282		337
		338	=item cf::get_slot $time[, $priority[, $name]]
		339
		340	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		341	This call blocks and returns only when you have at least C<$time> seconds
		342	of cpu time till the next tick. The slot is only valid till the next cede.
		343
		344	The optional C<$name> can be used to identify the job to run. It might be
		345	used for statistical purposes and should identify the same time-class.
		346
		347	Useful for short background jobs.
		348
		349	=cut
		350
		351	our @SLOT_QUEUE;
		352	our $SLOT_QUEUE;
		353
		354	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		355	$SLOT_QUEUE = Coro::async {
		356	my $signal = new Coro::Signal;
		357
		358	while () {
		359	next_job:
		360	my $avail = cf::till_tick;
		361	if ($avail > 0.01) {
		362	for (0 .. $#SLOT_QUEUE) {
		363	if ($SLOT_QUEUE[$_][0] < $avail) {
		364	my $job = splice @SLOT_QUEUE, $_, 1, ();
		365	$job->[2]->send;
		366	Coro::cede;
		367	goto next_job;
		368	}
		369	}
		370	}
		371
		372	if (@SLOT_QUEUE) {
		373	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		374	push @cf::WAIT_FOR_TICK, $signal;
		375	$signal->wait;
		376	} else {
		377	Coro::schedule;
		378	}
		379	}
		380	};
		381
		382	sub get_slot($;$$) {
		383	my ($time, $pri, $name) = @_;
		384
		385	$time = $TICK * .6 if $time > $TICK * .6;
		386	my $sig = new Coro::Signal;
		387
		388	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		389	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		390	$SLOT_QUEUE->ready;
		391	$sig->wait;
		392	}
		393
283	=item cf::async { BLOCK }	394	=item cf::async { BLOCK }
284		395
285	Currently the same as Coro::async_pool, meaning you cannot use	396	Currently the same as Coro::async_pool, meaning you cannot use
286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only	397	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
287	thing you are allowed to do is call C<prio> on it.	398	thing you are allowed to do is call C<prio> on it.
…		…
290		401
291	BEGIN { *async = \&Coro::async_pool }	402	BEGIN { *async = \&Coro::async_pool }
292		403
293	=item cf::sync_job { BLOCK }	404	=item cf::sync_job { BLOCK }
294		405
295	The design of crossfire+ requires that the main coro ($Coro::main) is	406	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	407	is always able to handle events or runnable, as Crossfire TRT is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	408	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		409	acceptable.
298		410
299	If it must be done, put the blocking parts into C<sync_job>. This will run	411	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	412	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	413	server will be frozen during this time, so the block should either finish
302	fast or be very important.	414	fast or be very important.
…		…
305		417
306	sub sync_job(&) {	418	sub sync_job(&) {
307	my ($job) = @_;	419	my ($job) = @_;
308		420
309	if ($Coro::current == $Coro::main) {	421	if ($Coro::current == $Coro::main) {
		422	my $time = Event::time;
		423
310	# this is the main coro, too bad, we have to block	424	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	425	# till the operation succeeds, freezing the server :/
312		426
313	# TODO: use suspend/resume instead	427	# TODO: use suspend/resume instead
314	# (but this is cancel-safe)	428	# (but this is cancel-safe)
…		…
325		439
326	while ($busy) {	440	while ($busy) {
327	Coro::cede or Event::one_event;	441	Coro::cede or Event::one_event;
328	}	442	}
329		443
		444	$time = Event::time - $time;
		445
		446	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		447	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		448
		449	$tick_start += $time; # do not account sync jobs to server load
		450
330	wantarray ? @res : $res[0]	451	wantarray ? @res : $res[0]
331	} else {	452	} else {
332	# we are in another coroutine, how wonderful, everything just works	453	# we are in another coroutine, how wonderful, everything just works
333		454
334	$job->()	455	$job->()
…		…
353	$EXT_CORO{$coro+0} = $coro;	474	$EXT_CORO{$coro+0} = $coro;
354		475
355	$coro	476	$coro
356	}	477	}
357		478
358	sub write_runtime {	479	=item fork_call { }, $args
359	my $guard = cf::lock_acquire "write_runtime";
360		480
361	my $runtime = cf::localdir . "/runtime";	481	Executes the given code block with the given arguments in a seperate
		482	process, returning the results. Everything must be serialisable with
		483	Coro::Storable. May, of course, block. Note that the executed sub may
		484	never block itself or use any form of Event handling.
362		485
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	486	=cut
364	or return;
365		487
366	my $value = $cf::RUNTIME + 90 + 10;	488	sub fork_call(&@) {
367	# 10 is the runtime save interval, for a monotonic clock	489	my ($cb, @args) = @_;
368	# 60 allows for the watchdog to kill the server.
369		490
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	491	# we seemingly have to make a local copy of the whole thing,
371	and return;	492	# otherwise perl prematurely frees the stuff :/
		493	# TODO: investigate and fix (likely this will be rather laborious)
372		494
373	# always fsync - this file is important	495	my @res = Coro::Util::fork_eval {
374	aio_fsync $fh	496	reset_signals;
375	and return;	497	&$cb
		498	}, @args;
376		499
377	close $fh	500	wantarray ? @res : $res[-1]
378	or return;	501	}
379		502
380	aio_rename "$runtime~", $runtime	503	=item $value = cf::db_get $family => $key
381	and return;
382		504
		505	Returns a single value from the environment database.
		506
		507	=item cf::db_put $family => $key => $value
		508
		509	Stores the given C<$value> in the family. It can currently store binary
		510	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		511
		512	=cut
		513
		514	our $DB;
		515
		516	sub db_init {
		517	unless ($DB) {
		518	$DB = BDB::db_create $DB_ENV;
		519
		520	cf::sync_job {
		521	eval {
		522	$DB->set_flags (BDB::CHKSUM);
		523
		524	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		525	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		526	cf::cleanup "db_open(db): $!" if $!;
		527	};
		528	cf::cleanup "db_open(db): $@" if $@;
		529	};
383	1	530	}
		531	}
		532
		533	sub db_get($$) {
		534	my $key = "$_[0]/$_[1]";
		535
		536	cf::sync_job {
		537	BDB::db_get $DB, undef, $key, my $data;
		538
		539	$! ? ()
		540	: $data
		541	}
		542	}
		543
		544	sub db_put($$$) {
		545	BDB::dbreq_pri 4;
		546	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		547	}
		548
		549	=item cf::cache $id => [$paths...], $processversion => $process
		550
		551	Generic caching function that returns the value of the resource $id,
		552	caching and regenerating as required.
		553
		554	This function can block.
		555
		556	=cut
		557
		558	sub cache {
		559	my ($id, $src, $processversion, $process) = @_;
		560
		561	my $meta =
		562	join "\x00",
		563	$processversion,
		564	map {
		565	aio_stat $_
		566	and Carp::croak "$_: $!";
		567
		568	($_, (stat _)[7,9])
		569	} @$src;
		570
		571	my $dbmeta = db_get cache => "$id/meta";
		572	if ($dbmeta ne $meta) {
		573	# changed, we may need to process
		574
		575	my @data;
		576	my $md5;
		577
		578	for (0 .. $#$src) {
		579	0 <= aio_load $src->[$_], $data[$_]
		580	or Carp::croak "$src->[$_]: $!";
		581	}
		582
		583	# if processing is expensive, check
		584	# checksum first
		585	if (1) {
		586	$md5 =
		587	join "\x00",
		588	$processversion,
		589	map {
		590	cf::cede_to_tick;
		591	($src->[$_], Digest::MD5::md5_hex $data[$_])
		592	} 0.. $#$src;
		593
		594
		595	my $dbmd5 = db_get cache => "$id/md5";
		596	if ($dbmd5 eq $md5) {
		597	db_put cache => "$id/meta", $meta;
		598
		599	return db_get cache => "$id/data";
		600	}
		601	}
		602
		603	my $t1 = Time::HiRes::time;
		604	my $data = $process->(\@data);
		605	my $t2 = Time::HiRes::time;
		606
		607	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		608
		609	db_put cache => "$id/data", $data;
		610	db_put cache => "$id/md5" , $md5;
		611	db_put cache => "$id/meta", $meta;
		612
		613	return $data;
		614	}
		615
		616	db_get cache => "$id/data"
		617	}
		618
		619	=item cf::datalog type => key => value, ...
		620
		621	Log a datalog packet of the given type with the given key-value pairs.
		622
		623	=cut
		624
		625	sub datalog($@) {
		626	my ($type, %kv) = @_;
		627	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384	}	628	}
385		629
386	=back	630	=back
387		631
388	=cut	632	=cut
…		…
395	attach callbacks/event handlers (a collection of which is called an "attachment")	639	attach callbacks/event handlers (a collection of which is called an "attachment")
396	to it. All such attachable objects support the following methods.	640	to it. All such attachable objects support the following methods.
397		641
398	In the following description, CLASS can be any of C<global>, C<object>	642	In the following description, CLASS can be any of C<global>, C<object>
399	C<player>, C<client> or C<map> (i.e. the attachable objects in	643	C<player>, C<client> or C<map> (i.e. the attachable objects in
400	crossfire+).	644	Crossfire TRT).
401		645
402	=over 4	646	=over 4
403		647
404	=item $attachable->attach ($attachment, key => $value...)	648	=item $attachable->attach ($attachment, key => $value...)
405		649
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	812	$registry = $CB_TYPE[$object_type] ||= [];
569		813
570	} elsif ($type eq "subtype") {	814	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	815	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	816	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	817	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		818
575	} elsif ($type eq "package") {	819	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	820	my $pkg = shift @arg;
577		821
578	while (my ($name, $id) = each %cb_id) {	822	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	851	_attach $registry, $klass, @attach;
608	}	852	}
609		853
610	$obj->{$name} = \%arg;	854	$obj->{$name} = \%arg;
611	} else {	855	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	856	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	857	}
614		858
615	$obj->{_attachment}{$name} = undef;	859	$obj->{_attachment}{$name} = undef;
616	}	860	}
617		861
…		…
619	if (ref $_[0]) {	863	if (ref $_[0]) {
620	_object_attach @_;	864	_object_attach @_;
621	} else {	865	} else {
622	_attach shift->_attach_registry, @_;	866	_attach shift->_attach_registry, @_;
623	}	867	}
		868	_recalc_want;
624	};	869	};
625		870
626	# all those should be optimised	871	# all those should be optimised
627	sub cf::attachable::detach {	872	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	873	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	876	delete $obj->{_attachment}{$name};
632	reattach ($obj);	877	reattach ($obj);
633	} else {	878	} else {
634	Carp::croak "cannot, currently, detach class attachments";	879	Carp::croak "cannot, currently, detach class attachments";
635	}	880	}
		881	_recalc_want;
636	};	882	};
637		883
638	sub cf::attachable::attached {	884	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	885	my ($obj, $name) = @_;
640		886
…		…
655	";	901	";
656	die if $@;	902	die if $@;
657	}	903	}
658		904
659	our $override;	905	our $override;
660	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	906	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
661		907
662	sub override {	908	sub override {
663	$override = 1;	909	$override = 1;
664	@invoke_results = ();	910	@INVOKE_RESULTS = (@_);
665	}	911	}
666		912
667	sub do_invoke {	913	sub do_invoke {
668	my $event = shift;	914	my $event = shift;
669	my $callbacks = shift;	915	my $callbacks = shift;
670		916
671	@invoke_results = ();	917	@INVOKE_RESULTS = ();
672		918
673	local $override;	919	local $override;
674		920
675	for (@$callbacks) {	921	for (@$callbacks) {
676	eval { &{$_->[1]} };	922	eval { &{$_->[1]} };
…		…
693		939
694	Generate an object-specific event with the given arguments.	940	Generate an object-specific event with the given arguments.
695		941
696	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	942	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
697	removed in future versions), and there is no public API to access override	943	removed in future versions), and there is no public API to access override
698	results (if you must, access C<@cf::invoke_results> directly).	944	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
699		945
700	=back	946	=back
701		947
702	=cut	948	=cut
703		949
704	#############################################################################	950	#############################################################################
705	# object support	951	# object support
		952	#
		953
		954	sub _can_merge {
		955	my ($ob1, $ob2) = @_;
		956
		957	local $Storable::canonical = 1;
		958	my $fob1 = Storable::freeze $ob1;
		959	my $fob2 = Storable::freeze $ob2;
		960
		961	$fob1 eq $fob2
		962	}
706		963
707	sub reattach {	964	sub reattach {
708	# basically do the same as instantiate, without calling instantiate	965	# basically do the same as instantiate, without calling instantiate
709	my ($obj) = @_;	966	my ($obj) = @_;
710		967
…		…
755	);	1012	);
756		1013
757	sub object_freezer_save {	1014	sub object_freezer_save {
758	my ($filename, $rdata, $objs) = @_;	1015	my ($filename, $rdata, $objs) = @_;
759		1016
		1017	my $guard = cf::lock_acquire "io";
		1018
760	sync_job {	1019	sync_job {
761	if (length $$rdata) {	1020	if (length $$rdata) {
		1021	utf8::decode (my $decname = $filename);
762	warn sprintf "saving %s (%d,%d)\n",	1022	warn sprintf "saving %s (%d,%d)\n",
763	$filename, length $$rdata, scalar @$objs;	1023	$decname, length $$rdata, scalar @$objs;
764		1024
765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1025	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
766	chmod SAVE_MODE, $fh;	1026	chmod SAVE_MODE, $fh;
767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1027	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
768	aio_fsync $fh if $cf::USE_FSYNC;	1028	aio_fsync $fh if $cf::USE_FSYNC;
…		…
787	}	1047	}
788	} else {	1048	} else {
789	aio_unlink $filename;	1049	aio_unlink $filename;
790	aio_unlink "$filename.pst";	1050	aio_unlink "$filename.pst";
791	}	1051	}
792	}	1052	};
		1053
		1054	undef $guard;
793	}	1055	}
794		1056
795	sub object_freezer_as_string {	1057	sub object_freezer_as_string {
796	my ($rdata, $objs) = @_;	1058	my ($rdata, $objs) = @_;
797		1059
…		…
802		1064
803	sub object_thawer_load {	1065	sub object_thawer_load {
804	my ($filename) = @_;	1066	my ($filename) = @_;
805		1067
806	my ($data, $av);	1068	my ($data, $av);
		1069
		1070	my $guard = cf::lock_acquire "io";
807		1071
808	(aio_load $filename, $data) >= 0	1072	(aio_load $filename, $data) >= 0
809	or return;	1073	or return;
810		1074
811	unless (aio_stat "$filename.pst") {	1075	unless (aio_stat "$filename.pst") {
812	(aio_load "$filename.pst", $av) >= 0	1076	(aio_load "$filename.pst", $av) >= 0
813	or return;	1077	or return;
		1078
		1079	undef $guard;
814	$av = eval { (Storable::thaw $av)->{objs} };	1080	$av = eval { (Storable::thaw $av)->{objs} };
815	}	1081	}
816		1082
		1083	utf8::decode (my $decname = $filename);
817	warn sprintf "loading %s (%d)\n",	1084	warn sprintf "loading %s (%d,%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1085	$decname, length $data, scalar @{$av || []};
		1086
819	return ($data, $av);	1087	($data, $av)
820	}	1088	}
		1089
		1090	=head2 COMMAND CALLBACKS
		1091
		1092	=over 4
		1093
		1094	=cut
821		1095
822	#############################################################################	1096	#############################################################################
823	# command handling &c	1097	# command handling &c
824		1098
825	=item cf::register_command $name => \&callback($ob,$args);	1099	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1112	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1113	}
840		1114
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1115	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1116
843	Register a callbackf ro execution when the client sends an extcmd packet.	1117	Register a callback for execution when the client sends an (synchronous)
		1118	extcmd packet. Ext commands will be processed in the order they are
		1119	received by the server, like other user commands. The first argument is
		1120	the logged-in player. Ext commands can only be processed after a player
		1121	has logged in successfully.
844		1122
845	If the callback returns something, it is sent back as if reply was being	1123	If the callback returns something, it is sent back as if reply was being
846	called.	1124	called.
847		1125
		1126	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1127
		1128	Register a callback for execution when the client sends an (asynchronous)
		1129	exticmd packet. Exti commands are processed by the server as soon as they
		1130	are received, i.e. out of order w.r.t. other commands. The first argument
		1131	is a client socket. Exti commands can be received anytime, even before
		1132	log-in.
		1133
		1134	If the callback returns something, it is sent back as if reply was being
		1135	called.
		1136
848	=cut	1137	=cut
849		1138
850	sub register_extcmd {	1139	sub register_extcmd {
851	my ($name, $cb) = @_;	1140	my ($name, $cb) = @_;
852		1141
853	$EXTCMD{$name} = $cb;	1142	$EXTCMD{$name} = $cb;
		1143	}
		1144
		1145	sub register_exticmd {
		1146	my ($name, $cb) = @_;
		1147
		1148	$EXTICMD{$name} = $cb;
854	}	1149	}
855		1150
856	cf::player->attach (	1151	cf::player->attach (
857	on_command => sub {	1152	on_command => sub {
858	my ($pl, $name, $params) = @_;	1153	my ($pl, $name, $params) = @_;
…		…
867	cf::override;	1162	cf::override;
868	},	1163	},
869	on_extcmd => sub {	1164	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1165	my ($pl, $buf) = @_;
871		1166
872	my $msg = eval { from_json $buf };	1167	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1168
874	if (ref $msg) {	1169	if (ref $msg) {
		1170	my ($type, $reply, @payload) =
		1171	"ARRAY" eq ref $msg
		1172	? @$msg
		1173	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1174
		1175	my @reply;
		1176
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1177	if (my $cb = $EXTCMD{$type}) {
876	if (my %reply = $cb->($pl, $msg)) {	1178	@reply = $cb->($pl, @payload);
877	$pl->ext_reply ($msg->{msgid}, %reply);
878	}
879	}	1179	}
		1180
		1181	$pl->ext_reply ($reply, @reply)
		1182	if $reply;
		1183
880	} else {	1184	} else {
881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1185	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
882	}	1186	}
883		1187
884	cf::override;	1188	cf::override;
885	},	1189	},
886	);	1190	);
887		1191
888	sub load_extension {
889	my ($path) = @_;
890
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
892	my $base = $1;
893	my $pkg = $1;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}
916	die $@;
917	}
918
919	push @EXTS, $pkg;
920	}
921
922	sub load_extensions {	1192	sub load_extensions {
		1193	cf::sync_job {
		1194	my %todo;
		1195
923	for my $ext (<$LIBDIR/*.ext>) {	1196	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1197	next unless -r $path;
925	eval {	1198
926	load_extension $ext;	1199	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1200	my $base = $1;
		1201	my $pkg = $1;
		1202	$pkg =~ s/[^[:word:]]/_/g;
		1203	$pkg = "ext::$pkg";
		1204
		1205	open my $fh, "<:utf8", $path
		1206	or die "$path: $!";
		1207
		1208	my $source = do { local $/; <$fh> };
		1209
		1210	my %ext = (
		1211	path => $path,
		1212	base => $base,
		1213	pkg => $pkg,
		1214	);
		1215
		1216	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1217	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1218
		1219	$ext{source} =
		1220	"package $pkg; use strict; use utf8;\n"
		1221	. "#line 1 \"$path\"\n{\n"
		1222	. $source
		1223	. "\n};\n1";
		1224
		1225	$todo{$base} = \%ext;
		1226	}
		1227
		1228	my %done;
		1229	while (%todo) {
		1230	my $progress;
		1231
		1232	while (my ($k, $v) = each %todo) {
		1233	for (split /,\s*/, $v->{meta}{depends}) {
		1234	goto skip
		1235	unless exists $done{$_};
		1236	}
		1237
		1238	warn "... loading '$k' into '$v->{pkg}'\n";
		1239
		1240	unless (eval $v->{source}) {
		1241	my $msg = $@ ? "$v->{path}: $@\n"
		1242	: "$v->{base}: extension inactive.\n";
		1243
		1244	if (exists $v->{meta}{mandatory}) {
		1245	warn $msg;
		1246	warn "mandatory extension failed to load, exiting.\n";
		1247	exit 1;
		1248	}
		1249
		1250	warn $msg;
		1251	}
		1252
		1253	$done{$k} = delete $todo{$k};
		1254	push @EXTS, $v->{pkg};
		1255	$progress = 1;
927	1	1256	}
928	} or warn "$ext not loaded: $@";	1257
		1258	skip:
		1259	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1260	unless $progress;
		1261	}
929	}	1262	};
930	}	1263	}
931		1264
932	#############################################################################	1265	#############################################################################
933		1266
		1267	=back
		1268
934	=head2 CORE EXTENSIONS	1269	=head2 CORE EXTENSIONS
935		1270
936	Functions and methods that extend core crossfire objects.	1271	Functions and methods that extend core crossfire objects.
937		1272
938	=cut	1273	=cut
…		…
943		1278
944	=head3 cf::player	1279	=head3 cf::player
945		1280
946	=over 4	1281	=over 4
947		1282
		1283	=item cf::player::num_playing
		1284
		1285	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1286
		1287	=cut
		1288
		1289	sub num_playing {
		1290	scalar grep
		1291	$_->ob->map
		1292	&& !$_->hidden
		1293	&& !$_->ob->flag (cf::FLAG_WIZ),
		1294	cf::player::list
		1295	}
		1296
948	=item cf::player::find $login	1297	=item cf::player::find $login
949		1298
950	Returns the given player object, loading it if necessary (might block).	1299	Returns the given player object, loading it if necessary (might block).
951		1300
952	=cut	1301	=cut
953		1302
954	sub playerdir($) {	1303	sub playerdir($) {
955	cf::localdir	1304	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1305	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1306	}
961		1307
962	sub path($) {	1308	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1309	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1310
965	(playerdir $login) . "/$login.pl"	1311	(playerdir $login) . "/playerdata"
966	}	1312	}
967		1313
968	sub find_active($) {	1314	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1315	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1316	and $cf::PLAYER{$_[0]}->active
…		…
983	my $login = $_[0];	1329	my $login = $_[0];
984		1330
985	my $guard = cf::lock_acquire "user_find:$login";	1331	my $guard = cf::lock_acquire "user_find:$login";
986		1332
987	$cf::PLAYER{$_[0]} || do {	1333	$cf::PLAYER{$_[0]} || do {
988	my $pl = load_pl path $login	1334	# rename old playerfiles to new ones
		1335	#TODO: remove when no longer required
		1336	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1337	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1338	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1339	aio_unlink +(playerdir $login) . "/$login.pl";
		1340
		1341	my $f = new_from_file cf::object::thawer path $login
989	or return;	1342	or return;
		1343
		1344	$f->next;
		1345	my $pl = cf::player::load_pl $f
		1346	or return;
		1347	local $cf::PLAYER_LOADING{$login} = $pl;
		1348	$f->resolve_delayed_derefs;
990	$cf::PLAYER{$login} = $pl	1349	$cf::PLAYER{$login} = $pl
991	}	1350	}
992	}	1351	}
993	}	1352	}
994		1353
…		…
1004		1363
1005	aio_mkdir playerdir $pl, 0770;	1364	aio_mkdir playerdir $pl, 0770;
1006	$pl->{last_save} = $cf::RUNTIME;	1365	$pl->{last_save} = $cf::RUNTIME;
1007		1366
1008	$pl->save_pl ($path);	1367	$pl->save_pl ($path);
1009	Coro::cede;	1368	cf::cede_to_tick;
1010	}	1369	}
1011		1370
1012	sub new($) {	1371	sub new($) {
1013	my ($login) = @_;	1372	my ($login) = @_;
1014		1373
…		…
1018	$self->{deny_save} = 1;	1377	$self->{deny_save} = 1;
1019		1378
1020	$cf::PLAYER{$login} = $self;	1379	$cf::PLAYER{$login} = $self;
1021		1380
1022	$self	1381	$self
		1382	}
		1383
		1384	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1385
		1386	=cut
		1387
		1388	sub send_msg {
		1389	my $ns = shift->ns
		1390	or return;
		1391	$ns->send_msg (@_);
1023	}	1392	}
1024		1393
1025	=item $pl->quit_character	1394	=item $pl->quit_character
1026		1395
1027	Nukes the player without looking back. If logged in, the connection will	1396	Nukes the player without looking back. If logged in, the connection will
…		…
1076	while and may block, so not sync_job-capable, ever.	1445	while and may block, so not sync_job-capable, ever.
1077		1446
1078	=cut	1447	=cut
1079		1448
1080	sub list_logins {	1449	sub list_logins {
1081	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1450	my $dirs = aio_readdir $PLAYERDIR
1082	or return [];	1451	or return [];
1083		1452
1084	my @logins;	1453	my @logins;
1085		1454
1086	for my $login (@$dirs) {	1455	for my $login (@$dirs) {
		1456	my $path = path $login;
		1457
		1458	# a .pst is a dead give-away for a valid player
		1459	unless (-e "$path.pst") {
1087	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1460	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1088	aio_read $fh, 0, 512, my $buf, 0 or next;	1461	aio_read $fh, 0, 512, my $buf, 0 or next;
1089	$buf !~ /^password -------------$/m or next; # official not-valid tag	1462	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1463	}
1090		1464
1091	utf8::decode $login;	1465	utf8::decode $login;
1092	push @logins, $login;	1466	push @logins, $login;
1093	}	1467	}
1094		1468
…		…
1121	}	1495	}
1122		1496
1123	\@paths	1497	\@paths
1124	}	1498	}
1125		1499
		1500	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1501
		1502	Expand crossfire pod fragments into protocol xml.
		1503
		1504	=cut
		1505
		1506	sub expand_cfpod {
		1507	((my $self), (local $_)) = @_;
		1508
		1509	# escape & and <
		1510	s/&/&amp;/g;
		1511	s/(?<![BIUGHT])</&lt;/g;
		1512
		1513	# this is buggy, it needs to properly take care of nested <'s
		1514
		1515	1 while
		1516	# replace B<>, I<>, U<> etc.
		1517	s/B<([^\>]*)>/<b>$1<\/b>/
		1518	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1519	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1520	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1521	# replace G<male|female> tags
		1522	|| s{G<([^>|]*)\|([^>]*)>}{
		1523	$self->gender ? $2 : $1
		1524	}ge
		1525	# replace H<hint text>
		1526	|| s{H<([^\>]*)>}
		1527	{
		1528	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1529	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1530	"")
		1531	[$self->{hintmode}]
		1532	}ge;
		1533
		1534	# create single paragraphs (very hackish)
		1535	s/(?<=\S)\n(?=\w)/ /g;
		1536
		1537	# compress some whitespace
		1538	s/\s+\n/\n/g; # ws line-ends
		1539	s/\n\n+/\n/g; # double lines
		1540	s/^\n+//; # beginning lines
		1541	s/\n+$//; # ending lines
		1542
		1543	$_
		1544	}
		1545
		1546	sub hintmode {
		1547	$_[0]{hintmode} = $_[1] if @_ > 1;
		1548	$_[0]{hintmode}
		1549	}
		1550
1126	=item $player->ext_reply ($msgid, $msgtype, %msg)	1551	=item $player->ext_reply ($msgid, @msg)
1127		1552
1128	Sends an ext reply to the player.	1553	Sends an ext reply to the player.
1129		1554
1130	=cut	1555	=cut
1131		1556
1132	sub ext_reply($$$%) {	1557	sub ext_reply($$@) {
1133	my ($self, $id, %msg) = @_;	1558	my ($self, $id, @msg) = @_;
1134		1559
1135	$msg{msgid} = $id;	1560	$self->ns->ext_reply ($id, @msg)
1136
1137	$self->send ("ext " . cf::to_json \%msg);
1138	}	1561	}
1139		1562
1140	package cf;	1563	=item $player->ext_msg ($type, @msg)
		1564
		1565	Sends an ext event to the client.
		1566
		1567	=cut
		1568
		1569	sub ext_msg($$@) {
		1570	my ($self, $type, @msg) = @_;
		1571
		1572	$self->ns->ext_msg ($type, @msg);
		1573	}
		1574
		1575	=head3 cf::region
		1576
		1577	=over 4
		1578
		1579	=cut
		1580
		1581	package cf::region;
		1582
		1583	=item cf::region::find_by_path $path
		1584
		1585	Tries to decuce the likely region for a map knowing only its path.
		1586
		1587	=cut
		1588
		1589	sub find_by_path($) {
		1590	my ($path) = @_;
		1591
		1592	my ($match, $specificity);
		1593
		1594	for my $region (list) {
		1595	if ($region->{match} && $path =~ $region->{match}) {
		1596	($match, $specificity) = ($region, $region->specificity)
		1597	if $region->specificity > $specificity;
		1598	}
		1599	}
		1600
		1601	$match
		1602	}
1141		1603
1142	=back	1604	=back
1143
1144		1605
1145	=head3 cf::map	1606	=head3 cf::map
1146		1607
1147	=over 4	1608	=over 4
1148		1609
…		…
1203	my ($self, $merge) = @_;	1664	my ($self, $merge) = @_;
1204		1665
1205	# we have to keep some variables in memory intact	1666	# we have to keep some variables in memory intact
1206	local $self->{path};	1667	local $self->{path};
1207	local $self->{load_path};	1668	local $self->{load_path};
1208	local $self->{deny_save};
1209	local $self->{deny_reset};
1210		1669
1211	$self->SUPER::thawer_merge ($merge);	1670	$self->SUPER::thawer_merge ($merge);
1212	}	1671	}
1213		1672
1214	sub normalise {	1673	sub normalise {
…		…
1261	$self->init; # pass $1 etc.	1720	$self->init; # pass $1 etc.
1262	return $self;	1721	return $self;
1263	}	1722	}
1264	}	1723	}
1265		1724
1266	Carp::carp "unable to resolve path '$path' (base '$base').";	1725	Carp::cluck "unable to resolve path '$path' (base '$base').";
1267	()	1726	()
1268	}	1727	}
1269		1728
1270	sub init {	1729	sub init {
1271	my ($self) = @_;	1730	my ($self) = @_;
…		…
1286		1745
1287	# the original (read-only) location	1746	# the original (read-only) location
1288	sub load_path {	1747	sub load_path {
1289	my ($self) = @_;	1748	my ($self) = @_;
1290		1749
1291	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1750	"$MAPDIR/$self->{path}.map"
1292	}	1751	}
1293		1752
1294	# the temporary/swap location	1753	# the temporary/swap location
1295	sub save_path {	1754	sub save_path {
1296	my ($self) = @_;	1755	my ($self) = @_;
1297		1756
1298	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1757	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1299	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1758	"$TMPDIR/$path.map"
1300	}	1759	}
1301		1760
1302	# the unique path, undef == no special unique path	1761	# the unique path, undef == no special unique path
1303	sub uniq_path {	1762	sub uniq_path {
1304	my ($self) = @_;	1763	my ($self) = @_;
1305		1764
1306	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1765	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1307	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1766	"$UNIQUEDIR/$path"
1308	}	1767	}
1309		1768
1310	# and all this just because we cannot iterate over	1769	# and all this just because we cannot iterate over
1311	# all maps in C++...	1770	# all maps in C++...
1312	sub change_all_map_light {	1771	sub change_all_map_light {
…		…
1314		1773
1315	$_->change_map_light ($change)	1774	$_->change_map_light ($change)
1316	for grep $_->outdoor, values %cf::MAP;	1775	for grep $_->outdoor, values %cf::MAP;
1317	}	1776	}
1318		1777
		1778	sub decay_objects {
		1779	my ($self) = @_;
		1780
		1781	return if $self->{deny_reset};
		1782
		1783	$self->do_decay_objects;
		1784	}
		1785
1319	sub unlink_save {	1786	sub unlink_save {
1320	my ($self) = @_;	1787	my ($self) = @_;
1321		1788
1322	utf8::encode (my $save = $self->save_path);	1789	utf8::encode (my $save = $self->save_path);
1323	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1790	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1326		1793
1327	sub load_header_from($) {	1794	sub load_header_from($) {
1328	my ($self, $path) = @_;	1795	my ($self, $path) = @_;
1329		1796
1330	utf8::encode $path;	1797	utf8::encode $path;
1331	#aio_open $path, O_RDONLY, 0	1798	my $f = new_from_file cf::object::thawer $path
1332	# or return;
1333
1334	$self->_load_header ($path)
1335	or return;	1799	or return;
		1800
		1801	$self->_load_header ($f)
		1802	or return;
		1803
		1804	local $MAP_LOADING{$self->{path}} = $self;
		1805	$f->resolve_delayed_derefs;
1336		1806
1337	$self->{load_path} = $path;	1807	$self->{load_path} = $path;
1338		1808
1339	1	1809	1
1340	}	1810	}
…		…
1379	$self->load_header_orig	1849	$self->load_header_orig
1380	or return;	1850	or return;
1381	$self->prepare_orig;	1851	$self->prepare_orig;
1382	}	1852	}
1383		1853
		1854	$self->{deny_reset} = 1
		1855	if $self->no_reset;
		1856
		1857	$self->default_region (cf::region::find_by_path $self->{path})
		1858	unless $self->default_region;
		1859
1384	1	1860	1
1385	}	1861	}
1386		1862
1387	sub find;	1863	sub find;
1388	sub find {	1864	sub find {
1389	my ($path, $origin) = @_;	1865	my ($path, $origin) = @_;
1390		1866
1391	$path = normalise $path, $origin && $origin->path;	1867	$path = normalise $path, $origin && $origin->path;
1392		1868
		1869	cf::lock_wait "map_data:$path";#d#remove
1393	cf::lock_wait "map_find:$path";	1870	cf::lock_wait "map_find:$path";
1394		1871
1395	$cf::MAP{$path} || do {	1872	$cf::MAP{$path} || do {
1396	my $guard = cf::lock_acquire "map_find:$path";	1873	my $guard1 = cf::lock_acquire "map_find:$path";
		1874	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1875
1397	my $map = new_from_path cf::map $path	1876	my $map = new_from_path cf::map $path
1398	or return;	1877	or return;
1399		1878
1400	$map->{last_save} = $cf::RUNTIME;	1879	$map->{last_save} = $cf::RUNTIME;
1401		1880
1402	$map->load_header	1881	$map->load_header
1403	or return;	1882	or return;
1404		1883
1405	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1884	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1406	# doing this can freeze the server in a sync job, obviously	1885	# doing this can freeze the server in a sync job, obviously
1407	#$cf::WAIT_FOR_TICK->wait;	1886	#$cf::WAIT_FOR_TICK->wait;
		1887	undef $guard1;
		1888	undef $guard2;
1408	$map->reset;	1889	$map->reset;
1409	undef $guard;
1410	return find $path;	1890	return find $path;
1411	}	1891	}
1412		1892
1413	$cf::MAP{$path} = $map	1893	$cf::MAP{$path} = $map
1414	}	1894	}
…		…
1421	my ($self) = @_;	1901	my ($self) = @_;
1422		1902
1423	local $self->{deny_reset} = 1; # loading can take a long time	1903	local $self->{deny_reset} = 1; # loading can take a long time
1424		1904
1425	my $path = $self->{path};	1905	my $path = $self->{path};
		1906
		1907	{
1426	my $guard = cf::lock_acquire "map_load:$path";	1908	my $guard = cf::lock_acquire "map_data:$path";
1427		1909
		1910	return unless $self->valid;
1428	return if $self->in_memory != cf::MAP_SWAPPED;	1911	return unless $self->in_memory == cf::MAP_SWAPPED;
1429		1912
1430	$self->in_memory (cf::MAP_LOADING);	1913	$self->in_memory (cf::MAP_LOADING);
1431		1914
1432	$self->alloc;	1915	$self->alloc;
1433		1916
1434	$self->pre_load;	1917	$self->pre_load;
		1918	cf::cede_to_tick;
1435		1919
1436	$self->_load_objects ($self->{load_path}, 1)	1920	my $f = new_from_file cf::object::thawer $self->{load_path};
		1921	$f->skip_block;
		1922	$self->_load_objects ($f)
1437	or return;	1923	or return;
1438		1924
1439	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1925	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1440	if delete $self->{load_original};	1926	if delete $self->{load_original};
1441		1927
1442	if (my $uniq = $self->uniq_path) {	1928	if (my $uniq = $self->uniq_path) {
1443	utf8::encode $uniq;	1929	utf8::encode $uniq;
1444	if (aio_open $uniq, O_RDONLY, 0) {	1930	unless (aio_stat $uniq) {
		1931	if (my $f = new_from_file cf::object::thawer $uniq) {
1445	$self->clear_unique_items;	1932	$self->clear_unique_items;
1446	$self->_load_objects ($uniq, 0);	1933	$self->_load_objects ($f);
		1934	$f->resolve_delayed_derefs;
		1935	}
1447	}	1936	}
1448	}	1937	}
1449		1938
1450	Coro::cede;	1939	$f->resolve_delayed_derefs;
1451		1940
		1941	cf::cede_to_tick;
1452	# now do the right thing for maps	1942	# now do the right thing for maps
1453	$self->link_multipart_objects;	1943	$self->link_multipart_objects;
1454
1455	unless ($self->{deny_activate}) {
1456	$self->decay_objects;
1457	$self->fix_auto_apply;
1458	$self->update_buttons;
1459	Coro::cede;
1460	$self->set_darkness_map;
1461	$self->difficulty ($self->estimate_difficulty)	1944	$self->difficulty ($self->estimate_difficulty)
1462	unless $self->difficulty;	1945	unless $self->difficulty;
1463	Coro::cede;	1946	cf::cede_to_tick;
		1947
		1948	unless ($self->{deny_activate}) {
		1949	$self->decay_objects;
		1950	$self->fix_auto_apply;
		1951	$self->update_buttons;
		1952	cf::cede_to_tick;
		1953	$self->set_darkness_map;
		1954	cf::cede_to_tick;
1464	$self->activate;	1955	$self->activate;
		1956	}
		1957
		1958	$self->{last_save} = $cf::RUNTIME;
		1959	$self->last_access ($cf::RUNTIME);
		1960
		1961	$self->in_memory (cf::MAP_IN_MEMORY);
1465	}	1962	}
1466		1963
1467	$self->post_load;	1964	$self->post_load;
1468
1469	$self->in_memory (cf::MAP_IN_MEMORY);
1470	}	1965	}
1471		1966
1472	sub customise_for {	1967	sub customise_for {
1473	my ($self, $ob) = @_;	1968	my ($self, $ob) = @_;
1474		1969
1475	return find "~" . $ob->name . "/" . $self->{path}	1970	return find "~" . $ob->name . "/" . $self->{path}
1476	if $self->per_player;	1971	if $self->per_player;
1477		1972
		1973	# return find "?party/" . $ob->name . "/" . $self->{path}
		1974	# if $self->per_party;
		1975
1478	$self	1976	$self
1479	}	1977	}
1480		1978
1481	# find and load all maps in the 3x3 area around a map	1979	# find and load all maps in the 3x3 area around a map
1482	sub load_diag {	1980	sub load_neighbours {
1483	my ($map) = @_;	1981	my ($map) = @_;
1484		1982
1485	my @diag; # diagonal neighbours	1983	my @neigh; # diagonal neighbours
1486		1984
1487	for (0 .. 3) {	1985	for (0 .. 3) {
1488	my $neigh = $map->tile_path ($_)	1986	my $neigh = $map->tile_path ($_)
1489	or next;	1987	or next;
1490	$neigh = find $neigh, $map	1988	$neigh = find $neigh, $map
1491	or next;	1989	or next;
1492	$neigh->load;	1990	$neigh->load;
1493		1991
		1992	push @neigh,
1494	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	1993	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1495	[$neigh->tile_path (($_ + 1) % 4), $neigh];	1994	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1496	}	1995	}
1497		1996
1498	for (@diag) {	1997	for (grep defined $_->[0], @neigh) {
		1998	my ($path, $origin) = @$_;
1499	my $neigh = find @$_	1999	my $neigh = find $path, $origin
1500	or next;	2000	or next;
1501	$neigh->load;	2001	$neigh->load;
1502	}	2002	}
1503	}	2003	}
1504		2004
…		…
1509	}	2009	}
1510		2010
1511	sub do_load_sync {	2011	sub do_load_sync {
1512	my ($map) = @_;	2012	my ($map) = @_;
1513		2013
		2014	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2015	if $Coro::current == $Coro::main;
		2016
1514	cf::sync_job { $map->load };	2017	cf::sync_job { $map->load };
1515	}	2018	}
1516		2019
1517	our %MAP_PREFETCH;	2020	our %MAP_PREFETCH;
1518	our $MAP_PREFETCHER = undef;	2021	our $MAP_PREFETCHER = undef;
1519		2022
1520	sub find_async {	2023	sub find_async {
1521	my ($path, $origin) = @_;	2024	my ($path, $origin, $load) = @_;
1522		2025
1523	$path = normalise $path, $origin && $origin->{path};	2026	$path = normalise $path, $origin && $origin->{path};
1524		2027
1525	if (my $map = $cf::MAP{$path}) {	2028	if (my $map = $cf::MAP{$path}) {
1526	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2029	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1527	}	2030	}
1528		2031
1529	undef $MAP_PREFETCH{$path};	2032	$MAP_PREFETCH{$path} |= $load;
		2033
1530	$MAP_PREFETCHER ||= cf::async {	2034	$MAP_PREFETCHER ||= cf::async {
1531	while (%MAP_PREFETCH) {	2035	while (%MAP_PREFETCH) {
1532	for my $path (keys %MAP_PREFETCH) {	2036	while (my ($k, $v) = each %MAP_PREFETCH) {
1533	my $map = find $path	2037	if (my $map = find $k) {
1534	or next;
1535	$map->load;	2038	$map->load if $v;
		2039	}
1536		2040
1537	delete $MAP_PREFETCH{$path};	2041	delete $MAP_PREFETCH{$k};
1538	}	2042	}
1539	}	2043	}
1540	undef $MAP_PREFETCHER;	2044	undef $MAP_PREFETCHER;
1541	};	2045	};
1542	$MAP_PREFETCHER->prio (6);	2046	$MAP_PREFETCHER->prio (6);
…		…
1545	}	2049	}
1546		2050
1547	sub save {	2051	sub save {
1548	my ($self) = @_;	2052	my ($self) = @_;
1549		2053
1550	my $lock = cf::lock_acquire "map_data:" . $self->path;	2054	my $lock = cf::lock_acquire "map_data:$self->{path}";
1551		2055
1552	$self->{last_save} = $cf::RUNTIME;	2056	$self->{last_save} = $cf::RUNTIME;
1553		2057
1554	return unless $self->dirty;	2058	return unless $self->dirty;
1555		2059
…		…
1578	my ($self) = @_;	2082	my ($self) = @_;
1579		2083
1580	# save first because save cedes	2084	# save first because save cedes
1581	$self->save;	2085	$self->save;
1582		2086
1583	my $lock = cf::lock_acquire "map_data:" . $self->path;	2087	my $lock = cf::lock_acquire "map_data:$self->{path}";
1584		2088
1585	return if $self->players;	2089	return if $self->players;
1586	return if $self->in_memory != cf::MAP_IN_MEMORY;	2090	return if $self->in_memory != cf::MAP_IN_MEMORY;
1587	return if $self->{deny_save};	2091	return if $self->{deny_save};
1588		2092
		2093	$self->in_memory (cf::MAP_SWAPPED);
		2094
		2095	$self->deactivate;
		2096	$_->clear_links_to ($self) for values %cf::MAP;
1589	$self->clear;	2097	$self->clear;
1590	$self->in_memory (cf::MAP_SWAPPED);
1591	}	2098	}
1592		2099
1593	sub reset_at {	2100	sub reset_at {
1594	my ($self) = @_;	2101	my ($self) = @_;
1595		2102
1596	# TODO: safety, remove and allow resettable per-player maps	2103	# TODO: safety, remove and allow resettable per-player maps
1597	return 1e99 if $self->isa ("ext::map_per_player");#d#
1598	return 1e99 if $self->{deny_reset};	2104	return 1e99 if $self->{deny_reset};
1599		2105
1600	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2106	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1601	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2107	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1602		2108
…		…
1613	my ($self) = @_;	2119	my ($self) = @_;
1614		2120
1615	my $lock = cf::lock_acquire "map_data:$self->{path}";	2121	my $lock = cf::lock_acquire "map_data:$self->{path}";
1616		2122
1617	return if $self->players;	2123	return if $self->players;
1618	return if $self->isa ("ext::map_per_player");#d#
1619		2124
1620	warn "resetting map ", $self->path;#d#	2125	warn "resetting map ", $self->path;
1621		2126
1622	$self->in_memory (cf::MAP_SWAPPED);	2127	$self->in_memory (cf::MAP_SWAPPED);
1623		2128
1624	# need to save uniques path	2129	# need to save uniques path
1625	unless ($self->{deny_save}) {	2130	unless ($self->{deny_save}) {
…		…
1629	if $uniq;	2134	if $uniq;
1630	}	2135	}
1631		2136
1632	delete $cf::MAP{$self->path};	2137	delete $cf::MAP{$self->path};
1633		2138
		2139	$self->deactivate;
		2140	$_->clear_links_to ($self) for values %cf::MAP;
1634	$self->clear;	2141	$self->clear;
1635
1636	$_->clear_links_to ($self) for values %cf::MAP;
1637		2142
1638	$self->unlink_save;	2143	$self->unlink_save;
1639	$self->destroy;	2144	$self->destroy;
1640	}	2145	}
1641		2146
1642	my $nuke_counter = "aaaa";	2147	my $nuke_counter = "aaaa";
1643		2148
1644	sub nuke {	2149	sub nuke {
1645	my ($self) = @_;	2150	my ($self) = @_;
1646		2151
		2152	{
		2153	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2154
1647	delete $cf::MAP{$self->path};	2155	delete $cf::MAP{$self->path};
1648		2156
1649	$self->unlink_save;	2157	$self->unlink_save;
1650		2158
1651	bless $self, "cf::map";	2159	bless $self, "cf::map";
1652	delete $self->{deny_reset};	2160	delete $self->{deny_reset};
1653	$self->{deny_save} = 1;	2161	$self->{deny_save} = 1;
1654	$self->reset_timeout (1);	2162	$self->reset_timeout (1);
1655	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2163	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1656		2164
1657	$cf::MAP{$self->path} = $self;	2165	$cf::MAP{$self->path} = $self;
		2166	}
1658		2167
1659	$self->reset; # polite request, might not happen	2168	$self->reset; # polite request, might not happen
		2169	}
		2170
		2171	=item $maps = cf::map::tmp_maps
		2172
		2173	Returns an arrayref with all map paths of currently instantiated and saved
		2174	maps. May block.
		2175
		2176	=cut
		2177
		2178	sub tmp_maps() {
		2179	[
		2180	map {
		2181	utf8::decode $_;
		2182	/\.map$/
		2183	? normalise $_
		2184	: ()
		2185	} @{ aio_readdir $TMPDIR or [] }
		2186	]
		2187	}
		2188
		2189	=item $maps = cf::map::random_maps
		2190
		2191	Returns an arrayref with all map paths of currently instantiated and saved
		2192	random maps. May block.
		2193
		2194	=cut
		2195
		2196	sub random_maps() {
		2197	[
		2198	map {
		2199	utf8::decode $_;
		2200	/\.map$/
		2201	? normalise "?random/$_"
		2202	: ()
		2203	} @{ aio_readdir $RANDOMDIR or [] }
		2204	]
1660	}	2205	}
1661		2206
1662	=item cf::map::unique_maps	2207	=item cf::map::unique_maps
1663		2208
1664	Returns an arrayref of paths of all shared maps that have	2209	Returns an arrayref of paths of all shared maps that have
1665	instantiated unique items. May block.	2210	instantiated unique items. May block.
1666		2211
1667	=cut	2212	=cut
1668		2213
1669	sub unique_maps() {	2214	sub unique_maps() {
1670	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2215	[
1671	or return;	2216	map {
1672
1673	my @paths;
1674
1675	for (@$files) {
1676	utf8::decode $_;	2217	utf8::decode $_;
1677	next if /\.pst$/;	2218	/\.map$/
1678	next unless /^$PATH_SEP/o;	2219	? normalise $_
1679		2220	: ()
1680	push @paths, cf::map::normalise $_;	2221	} @{ aio_readdir $UNIQUEDIR or [] }
1681	}	2222	]
1682
1683	\@paths
1684	}	2223	}
1685		2224
1686	package cf;	2225	package cf;
1687		2226
1688	=back	2227	=back
…		…
1706	map { $_, inv_recursive_ $_->inv } @_	2245	map { $_, inv_recursive_ $_->inv } @_
1707	}	2246	}
1708		2247
1709	sub inv_recursive {	2248	sub inv_recursive {
1710	inv_recursive_ inv $_[0]	2249	inv_recursive_ inv $_[0]
		2250	}
		2251
		2252	=item $ref = $ob->ref
		2253
		2254	creates and returns a persistent reference to an objetc that can be stored as a string.
		2255
		2256	=item $ob = cf::object::deref ($refstring)
		2257
		2258	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2259	even if the object actually exists. May block.
		2260
		2261	=cut
		2262
		2263	sub deref {
		2264	my ($ref) = @_;
		2265
		2266	# temporary compatibility#TODO#remove
		2267	$ref =~ s{^<}{player/<};
		2268
		2269	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2270	my ($uuid, $name) = ($1, $2);
		2271	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2272	or return;
		2273	$pl->ob->uuid eq $uuid
		2274	or return;
		2275
		2276	$pl->ob
		2277	} else {
		2278	warn "$ref: cannot resolve object reference\n";
		2279	undef
		2280	}
1711	}	2281	}
1712		2282
1713	package cf;	2283	package cf;
1714		2284
1715	=back	2285	=back
…		…
1734		2304
1735	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2305	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1736		2306
1737	if ($self->{record_replies}) {	2307	if ($self->{record_replies}) {
1738	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2308	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2309
1739	} else {	2310	} else {
		2311	my $pl = $self->contr;
		2312
		2313	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2314	my $dialog = $pl->{npc_dialog};
		2315	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2316
		2317	} else {
1740	$msg = $npc->name . " says: $msg" if $npc;	2318	$msg = $npc->name . " says: $msg" if $npc;
1741	$self->message ($msg, $flags);	2319	$self->message ($msg, $flags);
		2320	}
1742	}	2321	}
		2322	}
		2323
		2324	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2325
		2326	=cut
		2327
		2328	sub cf::object::send_msg {
		2329	my $pl = shift->contr
		2330	or return;
		2331	$pl->send_msg (@_);
1743	}	2332	}
1744		2333
1745	=item $player_object->may ("access")	2334	=item $player_object->may ("access")
1746		2335
1747	Returns wether the given player is authorized to access resource "access"	2336	Returns wether the given player is authorized to access resource "access"
…		…
1794	$self->deactivate_recursive;	2383	$self->deactivate_recursive;
1795		2384
1796	return if UNIVERSAL::isa $self->map, "ext::map_link";	2385	return if UNIVERSAL::isa $self->map, "ext::map_link";
1797		2386
1798	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2387	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1799	if $self->map;	2388	if $self->map && $self->map->{path} ne "{link}";
1800		2389
1801	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2390	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1802	}	2391	}
1803		2392
1804	sub cf::object::player::leave_link {	2393	sub cf::object::player::leave_link {
1805	my ($self, $map, $x, $y) = @_;	2394	my ($self, $map, $x, $y) = @_;
		2395
		2396	return unless $self->contr->active;
1806		2397
1807	my $link_pos = delete $self->{_link_pos};	2398	my $link_pos = delete $self->{_link_pos};
1808		2399
1809	unless ($map) {	2400	unless ($map) {
1810	# restore original map position	2401	# restore original map position
…		…
1824	# use -1 or undef as default coordinates, not 0, 0	2415	# use -1 or undef as default coordinates, not 0, 0
1825	($x, $y) = ($map->enter_x, $map->enter_y)	2416	($x, $y) = ($map->enter_x, $map->enter_y)
1826	if $x <=0 && $y <= 0;	2417	if $x <=0 && $y <= 0;
1827		2418
1828	$map->load;	2419	$map->load;
1829	$map->load_diag;	2420	$map->load_neighbours;
1830		2421
1831	return unless $self->contr->active;	2422	return unless $self->contr->active;
1832	$self->activate_recursive;	2423	$self->activate_recursive;
1833		2424
1834	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2425	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1835	$self->enter_map ($map, $x, $y);	2426	$self->enter_map ($map, $x, $y);
1836	}	2427	}
1837		2428
1838	cf::player->attach (	2429	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1839	on_logout => sub {
1840	my ($pl) = @_;
1841		2430
1842	# abort map switching before logout	2431	Moves the player to the given map-path and coordinates by first freezing
1843	if ($pl->ob->{_link_pos}) {	2432	her, loading and preparing them map, calling the provided $check callback
1844	cf::sync_job {	2433	that has to return the map if sucecssful, and then unfreezes the player on
1845	$pl->ob->leave_link	2434	the new (success) or old (failed) map position. In either case, $done will
1846	};	2435	be called at the end of this process.
1847	}
1848	},
1849	on_login => sub {
1850	my ($pl) = @_;
1851		2436
1852	# try to abort aborted map switching on player login :)
1853	# should happen only on crashes
1854	if ($pl->ob->{_link_pos}) {
1855	$pl->ob->enter_link;
1856	(async {
1857	$pl->ob->reply (undef,
1858	"There was an internal problem at your last logout, "
1859	. "the server will try to bring you to your intended destination in a second.",
1860	cf::NDI_RED);
1861	# we need this sleep as the login has a concurrent enter_exit running
1862	# and this sleep increases chances of the player not ending up in scorn
1863	Coro::Timer::sleep 1;
1864	$pl->ob->leave_link;
1865	})->prio (2);
1866	}
1867	},
1868	);
1869
1870	=item $player_object->goto ($path, $x, $y)
1871
1872	=cut	2437	=cut
		2438
		2439	our $GOTOGEN;
1873		2440
1874	sub cf::object::player::goto {	2441	sub cf::object::player::goto {
1875	my ($self, $path, $x, $y) = @_;	2442	my ($self, $path, $x, $y, $check, $done) = @_;
		2443
		2444	# do generation counting so two concurrent goto's will be executed in-order
		2445	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1876		2446
1877	$self->enter_link;	2447	$self->enter_link;
1878		2448
1879	(async {	2449	(async {
1880	my $map = eval {	2450	my $map = eval {
1881	my $map = cf::map::find $path;	2451	my $map = cf::map::find $path;
		2452
		2453	if ($map) {
1882	$map = $map->customise_for ($self) if $map;	2454	$map = $map->customise_for ($self);
		2455	$map = $check->($map) if $check && $map;
		2456	} else {
		2457	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2458	}
		2459
1883	$map	2460	$map
		2461	};
		2462
		2463	if ($@) {
		2464	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2465	LOG llevError | logBacktrace, Carp::longmess $@;
1884	} or	2466	}
1885	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1886		2467
		2468	if ($gen == $self->{_goto_generation}) {
		2469	delete $self->{_goto_generation};
1887	$self->leave_link ($map, $x, $y);	2470	$self->leave_link ($map, $x, $y);
		2471	}
		2472
		2473	$done->() if $done;
1888	})->prio (1);	2474	})->prio (1);
1889	}	2475	}
1890		2476
1891	=item $player_object->enter_exit ($exit_object)	2477	=item $player_object->enter_exit ($exit_object)
1892		2478
…		…
1931		2517
1932	$rmp->{random_seed} ||= $exit->random_seed;	2518	$rmp->{random_seed} ||= $exit->random_seed;
1933		2519
1934	my $data = cf::to_json $rmp;	2520	my $data = cf::to_json $rmp;
1935	my $md5 = Digest::MD5::md5_hex $data;	2521	my $md5 = Digest::MD5::md5_hex $data;
1936	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2522	my $meta = "$RANDOMDIR/$md5.meta";
1937		2523
1938	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2524	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1939	aio_write $fh, 0, (length $data), $data, 0;	2525	aio_write $fh, 0, (length $data), $data, 0;
1940	undef $fh;	2526	undef $fh;
1941	aio_rename "$meta~", $meta;	2527	aio_rename "$meta~", $meta;
…		…
1950		2536
1951	return unless $self->type == cf::PLAYER;	2537	return unless $self->type == cf::PLAYER;
1952		2538
1953	if ($exit->slaying eq "/!") {	2539	if ($exit->slaying eq "/!") {
1954	#TODO: this should de-fi-ni-te-ly not be a sync-job	2540	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2541	# the problem is that $exit might not survive long enough
		2542	# so it needs to be done right now, right here
1955	cf::sync_job { prepare_random_map $exit };	2543	cf::sync_job { prepare_random_map $exit };
1956	}	2544	}
1957		2545
1958	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2546	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1959	my $hp = $exit->stats->hp;	2547	my $hp = $exit->stats->hp;
1960	my $sp = $exit->stats->sp;	2548	my $sp = $exit->stats->sp;
1961		2549
1962	$self->enter_link;	2550	$self->enter_link;
		2551
		2552	# if exit is damned, update players death & WoR home-position
		2553	$self->contr->savebed ($slaying, $hp, $sp)
		2554	if $exit->flag (FLAG_DAMNED);
1963		2555
1964	(async {	2556	(async {
1965	$self->deactivate_recursive; # just to be sure	2557	$self->deactivate_recursive; # just to be sure
1966	unless (eval {	2558	unless (eval {
1967	$self->goto ($slaying, $hp, $sp);	2559	$self->goto ($slaying, $hp, $sp);
1968		2560
1969	1;	2561	1;
1970	}) {	2562	}) {
1971	$self->message ("Something went wrong deep within the crossfire server. "	2563	$self->message ("Something went wrong deep within the crossfire server. "
1972	. "I'll try to bring you back to the map you were before. "	2564	. "I'll try to bring you back to the map you were before. "
1973	. "Please report this to the dungeon master!",	2565	. "Please report this to the dungeon master!",
1974	cf::NDI_UNIQUE | cf::NDI_RED);	2566	cf::NDI_UNIQUE | cf::NDI_RED);
1975		2567
1976	warn "ERROR in enter_exit: $@";	2568	warn "ERROR in enter_exit: $@";
1977	$self->leave_link;	2569	$self->leave_link;
1978	}	2570	}
1979	})->prio (1);	2571	})->prio (1);
…		…
1992		2584
1993	sub cf::client::send_drawinfo {	2585	sub cf::client::send_drawinfo {
1994	my ($self, $text, $flags) = @_;	2586	my ($self, $text, $flags) = @_;
1995		2587
1996	utf8::encode $text;	2588	utf8::encode $text;
1997	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2589	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1998	}	2590	}
1999		2591
		2592	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2593
		2594	Send a drawinfo or msg packet to the client, formatting the msg for the
		2595	client if neccessary. C<$type> should be a string identifying the type of
		2596	the message, with C<log> being the default. If C<$color> is negative, suppress
		2597	the message unless the client supports the msg packet.
		2598
		2599	=cut
		2600
		2601	our %CHANNEL = (
		2602	"c/identify" => {
		2603	id => "identify",
		2604	title => "Identify",
		2605	reply => undef,
		2606	tooltip => "Items recently identified",
		2607	},
		2608	"c/examine" => {
		2609	id => "examine",
		2610	title => "Examine",
		2611	reply => undef,
		2612	tooltip => "Signs and other items you examined",
		2613	},
		2614	);
		2615
		2616	sub cf::client::send_msg {
		2617	my ($self, $channel, $msg, $color, @extra) = @_;
		2618
		2619	$msg = $self->pl->expand_cfpod ($msg);
		2620
		2621	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2622
		2623	# check predefined channels, for the benefit of C
		2624	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2625
		2626	if (ref $channel) {
		2627	# send meta info to client, if not yet sent
		2628	unless (exists $self->{channel}{$channel->{id}}) {
		2629	$self->{channel}{$channel->{id}} = $channel;
		2630	$self->ext_msg (channel_info => $channel)
		2631	if $self->can_msg;
		2632	}
		2633
		2634	$channel = $channel->{id};
		2635	}
		2636
		2637	return unless @extra || length $msg;
		2638
		2639	if ($self->can_msg) {
		2640	# default colour, mask it out
		2641	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2642	if $color & cf::NDI_DEF;
		2643
		2644	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2645	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2646	} else {
		2647	if ($color >= 0) {
		2648	# replace some tags by gcfclient-compatible ones
		2649	for ($msg) {
		2650	1 while
		2651	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2652	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2653	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2654	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2655	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2656	}
		2657
		2658	$color &= cf::NDI_COLOR_MASK;
		2659
		2660	utf8::encode $msg;
		2661
		2662	if (0 && $msg =~ /\[/) {
		2663	# COMMAND/INFO
		2664	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2665	} else {
		2666	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2667	$self->send_packet ("drawinfo $color $msg")
		2668	}
		2669	}
		2670	}
		2671	}
		2672
		2673	=item $client->ext_msg ($type, @msg)
		2674
		2675	Sends an ext event to the client.
		2676
		2677	=cut
		2678
		2679	sub cf::client::ext_msg($$@) {
		2680	my ($self, $type, @msg) = @_;
		2681
		2682	if ($self->extcmd == 2) {
		2683	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2684	} elsif ($self->extcmd == 1) { # TODO: remove
		2685	push @msg, msgtype => "event_$type";
		2686	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2687	}
		2688	}
		2689
		2690	=item $client->ext_reply ($msgid, @msg)
		2691
		2692	Sends an ext reply to the client.
		2693
		2694	=cut
		2695
		2696	sub cf::client::ext_reply($$@) {
		2697	my ($self, $id, @msg) = @_;
		2698
		2699	if ($self->extcmd == 2) {
		2700	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2701	} elsif ($self->extcmd == 1) {
		2702	#TODO: version 1, remove
		2703	unshift @msg, msgtype => "reply", msgid => $id;
		2704	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2705	}
		2706	}
2000		2707
2001	=item $success = $client->query ($flags, "text", \&cb)	2708	=item $success = $client->query ($flags, "text", \&cb)
2002		2709
2003	Queues a query to the client, calling the given callback with	2710	Queues a query to the client, calling the given callback with
2004	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2711	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2005	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2712	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2006		2713
2007	Queries can fail, so check the return code. Or don't, as queries will become	2714	Queries can fail, so check the return code. Or don't, as queries will
2008	reliable at some point in the future.	2715	become reliable at some point in the future.
2009		2716
2010	=cut	2717	=cut
2011		2718
2012	sub cf::client::query {	2719	sub cf::client::query {
2013	my ($self, $flags, $text, $cb) = @_;	2720	my ($self, $flags, $text, $cb) = @_;
…		…
2021	utf8::encode $text;	2728	utf8::encode $text;
2022	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2729	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2023		2730
2024	$self->send_packet ($self->{query_queue}[0][0])	2731	$self->send_packet ($self->{query_queue}[0][0])
2025	if @{ $self->{query_queue} } == 1;	2732	if @{ $self->{query_queue} } == 1;
		2733
		2734	1
2026	}	2735	}
2027		2736
2028	cf::client->attach (	2737	cf::client->attach (
		2738	on_connect => sub {
		2739	my ($ns) = @_;
		2740
		2741	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2742	},
2029	on_reply => sub {	2743	on_reply => sub {
2030	my ($ns, $msg) = @_;	2744	my ($ns, $msg) = @_;
2031		2745
2032	# this weird shuffling is so that direct followup queries	2746	# this weird shuffling is so that direct followup queries
2033	# get handled first	2747	# get handled first
…		…
2045	} else {	2759	} else {
2046	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2760	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2047	}	2761	}
2048	}	2762	}
2049	},	2763	},
		2764	on_exticmd => sub {
		2765	my ($ns, $buf) = @_;
		2766
		2767	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2768
		2769	if (ref $msg) {
		2770	my ($type, $reply, @payload) =
		2771	"ARRAY" eq ref $msg
		2772	? @$msg
		2773	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2774
		2775	my @reply;
		2776
		2777	if (my $cb = $EXTICMD{$type}) {
		2778	@reply = $cb->($ns, @payload);
		2779	}
		2780
		2781	$ns->ext_reply ($reply, @reply)
		2782	if $reply;
		2783
		2784	} else {
		2785	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2786	}
		2787
		2788	cf::override;
		2789	},
2050	);	2790	);
2051		2791
2052	=item $client->async (\&cb)	2792	=item $client->async (\&cb)
2053		2793
2054	Create a new coroutine, running the specified callback. The coroutine will	2794	Create a new coroutine, running the specified callback. The coroutine will
…		…
2095	our $safe = new Safe "safe";	2835	our $safe = new Safe "safe";
2096	our $safe_hole = new Safe::Hole;	2836	our $safe_hole = new Safe::Hole;
2097		2837
2098	$SIG{FPE} = 'IGNORE';	2838	$SIG{FPE} = 'IGNORE';
2099		2839
2100	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2840	$safe->permit_only (Opcode::opset qw(
		2841	:base_core :base_mem :base_orig :base_math
		2842	grepstart grepwhile mapstart mapwhile
		2843	sort time
		2844	));
2101		2845
2102	# here we export the classes and methods available to script code	2846	# here we export the classes and methods available to script code
2103		2847
2104	=pod	2848	=pod
2105		2849
2106	The following fucntions and emthods are available within a safe environment:	2850	The following functions and methods are available within a safe environment:
2107		2851
2108	cf::object contr pay_amount pay_player map	2852	cf::object
		2853	contr pay_amount pay_player map x y force_find force_add
		2854	insert remove name archname title slaying race decrease_ob_nr
		2855
2109	cf::object::player player	2856	cf::object::player
2110	cf::player peaceful	2857	player
2111	cf::map trigger	2858
		2859	cf::player
		2860	peaceful
		2861
		2862	cf::map
		2863	trigger
2112		2864
2113	=cut	2865	=cut
2114		2866
2115	for (	2867	for (
2116	["cf::object" => qw(contr pay_amount pay_player map)],	2868	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2869	insert remove inv name archname title slaying race
		2870	decrease_ob_nr)],
2117	["cf::object::player" => qw(player)],	2871	["cf::object::player" => qw(player)],
2118	["cf::player" => qw(peaceful)],	2872	["cf::player" => qw(peaceful)],
2119	["cf::map" => qw(trigger)],	2873	["cf::map" => qw(trigger)],
2120	) {	2874	) {
2121	no strict 'refs';	2875	no strict 'refs';
…		…
2192	=back	2946	=back
2193		2947
2194	=cut	2948	=cut
2195		2949
2196	#############################################################################	2950	#############################################################################
2197
2198	=head2 EXTENSION DATABASE SUPPORT
2199
2200	Crossfire maintains a very simple database for extension use. It can
2201	currently store anything that can be serialised using Storable, which
2202	excludes objects.
2203
2204	The parameter C<$family> should best start with the name of the extension
2205	using it, it should be unique.
2206
2207	=over 4
2208
2209	=item $value = cf::db_get $family => $key
2210
2211	Returns a single value from the database.
2212
2213	=item cf::db_put $family => $key => $value
2214
2215	Stores the given C<$value> in the family.
2216
2217	=cut
2218
2219	our $DB;
2220
2221	sub db_init {
2222	unless ($DB) {
2223	$DB = BDB::db_create $DB_ENV;
2224
2225	cf::sync_job {
2226	eval {
2227	$DB->set_flags (BDB::CHKSUM);
2228
2229	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2230	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2231	cf::cleanup "db_open(db): $!" if $!;
2232	};
2233	cf::cleanup "db_open(db): $@" if $@;
2234	};
2235
2236	my $path = cf::localdir . "/database.pst";
2237	if (stat $path) {
2238	cf::sync_job {
2239	my $pst = Storable::retrieve $path;
2240
2241	cf::db_put (board => data => $pst->{board});
2242	cf::db_put (guildrules => data => $pst->{guildrules});
2243	cf::db_put (rent => balance => $pst->{rent}{balance});
2244	BDB::db_env_txn_checkpoint $DB_ENV;
2245
2246	unlink $path;
2247	};
2248	}
2249	}
2250	}
2251
2252	sub db_get($$) {
2253	my $key = "$_[0]/$_[1]";
2254
2255	cf::sync_job {
2256	BDB::db_get $DB, undef, $key, my $data;
2257
2258	$! ? ()
2259	: Compress::LZF::sthaw $data
2260	}
2261	}
2262
2263	sub db_put($$$) {
2264	BDB::dbreq_pri 4;
2265	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2266	}
2267
2268	#############################################################################
2269	# the server's init and main functions	2951	# the server's init and main functions
2270		2952
2271	sub init_resources {	2953	sub load_facedata($) {
2272	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2954	my ($path) = @_;
		2955
		2956	# HACK to clear player env face cache, we need some signal framework
		2957	# for this (global event?)
		2958	%ext::player_env::MUSIC_FACE_CACHE = ();
		2959
		2960	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		2961
		2962	warn "loading facedata from $path\n";
		2963
		2964	my $facedata;
		2965	0 < aio_load $path, $facedata
		2966	or die "$path: $!";
		2967
		2968	$facedata = Coro::Storable::thaw $facedata;
		2969
		2970	$facedata->{version} == 2
		2971	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2972
		2973	# patch in the exptable
		2974	$facedata->{resource}{"res/exp_table"} = {
		2975	type => FT_RSRC,
		2976	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		2977	};
		2978	cf::cede_to_tick;
		2979
		2980	{
		2981	my $faces = $facedata->{faceinfo};
		2982
		2983	while (my ($face, $info) = each %$faces) {
		2984	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2985	cf::face::set_visibility $idx, $info->{visibility};
		2986	cf::face::set_magicmap $idx, $info->{magicmap};
		2987	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2988	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		2989
		2990	cf::cede_to_tick;
		2991	}
		2992
		2993	while (my ($face, $info) = each %$faces) {
		2994	next unless $info->{smooth};
		2995	my $idx = cf::face::find $face
		2996	or next;
		2997	if (my $smooth = cf::face::find $info->{smooth}) {
		2998	cf::face::set_smooth $idx, $smooth;
		2999	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3000	} else {
		3001	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3002	}
		3003
		3004	cf::cede_to_tick;
		3005	}
		3006	}
		3007
		3008	{
		3009	my $anims = $facedata->{animinfo};
		3010
		3011	while (my ($anim, $info) = each %$anims) {
		3012	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3013	cf::cede_to_tick;
		3014	}
		3015
		3016	cf::anim::invalidate_all; # d'oh
		3017	}
		3018
		3019	{
		3020	# TODO: for gcfclient pleasure, we should give resources
		3021	# that gcfclient doesn't grok a >10000 face index.
		3022	my $res = $facedata->{resource};
		3023
		3024	my $soundconf = delete $res->{"res/sound.conf"};
		3025
		3026	while (my ($name, $info) = each %$res) {
		3027	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3028	my $data;
		3029
		3030	if ($info->{type} & 1) {
		3031	# prepend meta info
		3032
		3033	my $meta = $enc->encode ({
		3034	name => $name,
		3035	%{ $info->{meta} || {} },
		3036	});
		3037
		3038	$data = pack "(w/a*)*", $meta, $info->{data};
		3039	} else {
		3040	$data = $info->{data};
		3041	}
		3042
		3043	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3044	cf::face::set_type $idx, $info->{type};
		3045
		3046	cf::cede_to_tick;
		3047	}
		3048
		3049	if ($soundconf) {
		3050	$soundconf = $enc->decode (delete $soundconf->{data});
		3051
		3052	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3053	my $sound = $soundconf->{compat}[$_]
		3054	or next;
		3055
		3056	my $face = cf::face::find "sound/$sound->[1]";
		3057	cf::sound::set $sound->[0] => $face;
		3058	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3059	}
		3060
		3061	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3062	my $face = cf::face::find "sound/$v";
		3063	cf::sound::set $k => $face;
		3064	}
		3065	}
		3066	}
		3067
		3068	1
		3069	}
		3070
		3071	register_exticmd fx_want => sub {
		3072	my ($ns, $want) = @_;
		3073
		3074	while (my ($k, $v) = each %$want) {
		3075	$ns->fx_want ($k, $v);
		3076	}
		3077	};
		3078
		3079	sub reload_regions {
		3080	# HACK to clear player env face cache, we need some signal framework
		3081	# for this (global event?)
		3082	%ext::player_env::MUSIC_FACE_CACHE = ();
		3083
		3084	load_resource_file "$MAPDIR/regions"
2273	or die "unable to load regions file\n";#d#	3085	or die "unable to load regions file\n";
2274	}
2275		3086
2276	sub cfg_load {	3087	for (cf::region::list) {
		3088	$_->{match} = qr/$_->{match}/
		3089	if exists $_->{match};
		3090	}
		3091	}
		3092
		3093	sub reload_facedata {
		3094	load_facedata "$DATADIR/facedata"
		3095	or die "unable to load facedata\n";
		3096	}
		3097
		3098	sub reload_archetypes {
		3099	load_resource_file "$DATADIR/archetypes"
		3100	or die "unable to load archetypes\n";
		3101	#d# NEED to laod twice to resolve forward references
		3102	# this really needs to be done in an extra post-pass
		3103	# (which needs to be synchronous, so solve it differently)
		3104	load_resource_file "$DATADIR/archetypes"
		3105	or die "unable to load archetypes\n";
		3106	}
		3107
		3108	sub reload_treasures {
		3109	load_resource_file "$DATADIR/treasures"
		3110	or die "unable to load treasurelists\n";
		3111	}
		3112
		3113	sub reload_resources {
		3114	warn "reloading resource files...\n";
		3115
		3116	reload_regions;
		3117	reload_facedata;
		3118	#reload_archetypes;#d#
		3119	reload_archetypes;
		3120	reload_treasures;
		3121
		3122	warn "finished reloading resource files\n";
		3123	}
		3124
		3125	sub init {
		3126	reload_resources;
		3127	}
		3128
		3129	sub reload_config {
2277	open my $fh, "<:utf8", cf::confdir . "/config"	3130	open my $fh, "<:utf8", "$CONFDIR/config"
2278	or return;	3131	or return;
2279		3132
2280	local $/;	3133	local $/;
2281	*CFG = YAML::Syck::Load <$fh>;	3134	*CFG = YAML::Syck::Load <$fh>;
2282		3135
…		…
2290	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3143	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2291	and die "WARNING: m(un)lockall failed: $!\n";	3144	and die "WARNING: m(un)lockall failed: $!\n";
2292	};	3145	};
2293	warn $@ if $@;	3146	warn $@ if $@;
2294	}	3147	}
2295	}
2296
2297	sub init {
2298	init_resources;
2299	}	3148	}
2300		3149
2301	sub main {	3150	sub main {
2302	# we must not ever block the main coroutine	3151	# we must not ever block the main coroutine
2303	local $Coro::idle = sub {	3152	local $Coro::idle = sub {
…		…
2305	(async {	3154	(async {
2306	Event::one_event;	3155	Event::one_event;
2307	})->prio (Coro::PRIO_MAX);	3156	})->prio (Coro::PRIO_MAX);
2308	};	3157	};
2309		3158
2310	cfg_load;	3159	reload_config;
2311	db_init;	3160	db_init;
2312	load_extensions;	3161	load_extensions;
2313		3162
2314	$TICK_WATCHER->start;	3163	$TICK_WATCHER->start;
2315	Event::loop;	3164	Event::loop;
…		…
2331	},	3180	},
2332	);	3181	);
2333	}	3182	}
2334	}	3183	}
2335		3184
		3185	sub write_runtime {
		3186	my $runtime = "$LOCALDIR/runtime";
		3187
		3188	# first touch the runtime file to show we are still running:
		3189	# the fsync below can take a very very long time.
		3190
		3191	IO::AIO::aio_utime $runtime, undef, undef;
		3192
		3193	my $guard = cf::lock_acquire "write_runtime";
		3194
		3195	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3196	or return;
		3197
		3198	my $value = $cf::RUNTIME + 90 + 10;
		3199	# 10 is the runtime save interval, for a monotonic clock
		3200	# 60 allows for the watchdog to kill the server.
		3201
		3202	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3203	and return;
		3204
		3205	# always fsync - this file is important
		3206	aio_fsync $fh
		3207	and return;
		3208
		3209	# touch it again to show we are up-to-date
		3210	aio_utime $fh, undef, undef;
		3211
		3212	close $fh
		3213	or return;
		3214
		3215	aio_rename "$runtime~", $runtime
		3216	and return;
		3217
		3218	warn "runtime file written.\n";
		3219
		3220	1
		3221	}
		3222
2336	sub emergency_save() {	3223	sub emergency_save() {
2337	my $freeze_guard = cf::freeze_mainloop;	3224	my $freeze_guard = cf::freeze_mainloop;
2338		3225
2339	warn "enter emergency perl save\n";	3226	warn "enter emergency perl save\n";
2340		3227
…		…
2371		3258
2372	warn Carp::longmess "post_cleanup backtrace"	3259	warn Carp::longmess "post_cleanup backtrace"
2373	if $make_core;	3260	if $make_core;
2374	}	3261	}
2375		3262
2376	sub reload() {	3263	sub do_reload_perl() {
2377	# can/must only be called in main	3264	# can/must only be called in main
2378	if ($Coro::current != $Coro::main) {	3265	if ($Coro::current != $Coro::main) {
2379	warn "can only reload from main coroutine";	3266	warn "can only reload from main coroutine";
2380	return;	3267	return;
2381	}	3268	}
…		…
2406	Coro::cede;	3293	Coro::cede;
2407	last unless IO::AIO::nreqs || BDB::nreqs;	3294	last unless IO::AIO::nreqs || BDB::nreqs;
2408	warn "iterate...";	3295	warn "iterate...";
2409	}	3296	}
2410		3297
		3298	++$RELOAD;
		3299
2411	warn "cancelling all extension coros";	3300	warn "cancelling all extension coros";
2412	$_->cancel for values %EXT_CORO;	3301	$_->cancel for values %EXT_CORO;
2413	%EXT_CORO = ();	3302	%EXT_CORO = ();
2414		3303
2415	warn "removing commands";	3304	warn "removing commands";
2416	%COMMAND = ();	3305	%COMMAND = ();
2417		3306
2418	warn "removing ext commands";	3307	warn "removing ext/exti commands";
2419	%EXTCMD = ();	3308	%EXTCMD = ();
		3309	%EXTICMD = ();
2420		3310
2421	warn "unloading/nuking all extensions";	3311	warn "unloading/nuking all extensions";
2422	for my $pkg (@EXTS) {	3312	for my $pkg (@EXTS) {
2423	warn "... unloading $pkg";	3313	warn "... unloading $pkg";
2424		3314
…		…
2454	Symbol::delete_package "safe::$_"	3344	Symbol::delete_package "safe::$_"
2455	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3345	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2456		3346
2457	warn "unloading cf.pm \"a bit\"";	3347	warn "unloading cf.pm \"a bit\"";
2458	delete $INC{"cf.pm"};	3348	delete $INC{"cf.pm"};
		3349	delete $INC{"cf/pod.pm"};
2459		3350
2460	# don't, removes xs symbols, too,	3351	# don't, removes xs symbols, too,
2461	# and global variables created in xs	3352	# and global variables created in xs
2462	#Symbol::delete_package __PACKAGE__;	3353	#Symbol::delete_package __PACKAGE__;
2463		3354
…		…
2466	warn "reloading cf.pm";	3357	warn "reloading cf.pm";
2467	require cf;	3358	require cf;
2468	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3359	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2469		3360
2470	warn "loading config and database again";	3361	warn "loading config and database again";
2471	cf::cfg_load;	3362	cf::reload_config;
2472		3363
2473	warn "loading extensions";	3364	warn "loading extensions";
2474	cf::load_extensions;	3365	cf::load_extensions;
2475		3366
2476	warn "reattaching attachments to objects/players";	3367	warn "reattaching attachments to objects/players";
2477	_global_reattach;	3368	_global_reattach; # objects, sockets
2478	warn "reattaching attachments to maps";	3369	warn "reattaching attachments to maps";
2479	reattach $_ for values %MAP;	3370	reattach $_ for values %MAP;
2480		3371	warn "reattaching attachments to players";
2481	warn "loading reloadable resources";	3372	reattach $_ for values %PLAYER;
2482	init_resources;
2483		3373
2484	warn "leaving sync_job";	3374	warn "leaving sync_job";
2485		3375
2486	1	3376	1
2487	} or do {	3377	} or do {
…		…
2493	warn "reloaded";	3383	warn "reloaded";
2494	};	3384	};
2495		3385
2496	our $RELOAD_WATCHER; # used only during reload	3386	our $RELOAD_WATCHER; # used only during reload
2497		3387
		3388	sub reload_perl() {
		3389	# doing reload synchronously and two reloads happen back-to-back,
		3390	# coro crashes during coro_state_free->destroy here.
		3391
		3392	$RELOAD_WATCHER ||= Event->timer (
		3393	reentrant => 0,
		3394	after => 0,
		3395	data => WF_AUTOCANCEL,
		3396	cb => sub {
		3397	do_reload_perl;
		3398	undef $RELOAD_WATCHER;
		3399	},
		3400	);
		3401	}
		3402
2498	register_command "reload" => sub {	3403	register_command "reload" => sub {
2499	my ($who, $arg) = @_;	3404	my ($who, $arg) = @_;
2500		3405
2501	if ($who->flag (FLAG_WIZ)) {	3406	if ($who->flag (FLAG_WIZ)) {
2502	$who->message ("reloading server.");	3407	$who->message ("reloading server.");
2503		3408	async { reload_perl };
2504	# doing reload synchronously and two reloads happen back-to-back,
2505	# coro crashes during coro_state_free->destroy here.
2506
2507	$RELOAD_WATCHER ||= Event->timer (
2508	reentrant => 0,
2509	after => 0,
2510	data => WF_AUTOCANCEL,
2511	cb => sub {
2512	reload;
2513	undef $RELOAD_WATCHER;
2514	},
2515	);
2516	}	3409	}
2517	};	3410	};
2518		3411
2519	unshift @INC, $LIBDIR;	3412	unshift @INC, $LIBDIR;
2520		3413
2521	my $bug_warning = 0;	3414	my $bug_warning = 0;
2522		3415
		3416	our @WAIT_FOR_TICK;
		3417	our @WAIT_FOR_TICK_BEGIN;
		3418
		3419	sub wait_for_tick {
		3420	return unless $TICK_WATCHER->is_active;
		3421	return if $Coro::current == $Coro::main;
		3422
		3423	my $signal = new Coro::Signal;
		3424	push @WAIT_FOR_TICK, $signal;
		3425	$signal->wait;
		3426	}
		3427
		3428	sub wait_for_tick_begin {
		3429	return unless $TICK_WATCHER->is_active;
		3430	return if $Coro::current == $Coro::main;
		3431
		3432	my $signal = new Coro::Signal;
		3433	push @WAIT_FOR_TICK_BEGIN, $signal;
		3434	$signal->wait;
		3435	}
		3436
		3437	my $min = 1e6;#d#
		3438	my $avg = 10;
2523	$TICK_WATCHER = Event->timer (	3439	$TICK_WATCHER = Event->timer (
2524	reentrant => 0,	3440	reentrant => 0,
2525	parked => 1,	3441	parked => 1,
2526	prio => 0,	3442	prio => 0,
2527	at => $NEXT_TICK || $TICK,	3443	at => $NEXT_TICK || $TICK,
…		…
2531	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3447	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2532	unless ++$bug_warning > 10;	3448	unless ++$bug_warning > 10;
2533	return;	3449	return;
2534	}	3450	}
2535		3451
2536	$NOW = Event::time;	3452	$NOW = $tick_start = Event::time;
2537		3453
2538	cf::server_tick; # one server iteration	3454	cf::server_tick; # one server iteration
		3455
		3456	0 && sync_job {#d#
		3457	for(1..10) {
		3458	my $t = Event::time;
		3459	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3460	or die;
		3461
		3462	$map->width (50);
		3463	$map->height (50);
		3464	$map->alloc;
		3465	$map->_load_objects ("/tmp/x.map", 1); #TODO: does not work
		3466	my $t = Event::time - $t;
		3467
		3468	#next unless $t < 0.0013;#d#
		3469	if ($t < $min) {
		3470	$min = $t;
		3471	}
		3472	$avg = $avg * 0.99 + $t * 0.01;
		3473	}
		3474	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3475	exit 0;
		3476	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3477	};
		3478
2539	$RUNTIME += $TICK;	3479	$RUNTIME += $TICK;
2540	$NEXT_TICK += $TICK;	3480	$NEXT_TICK += $TICK;
2541		3481
2542	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3482	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2543	$NEXT_RUNTIME_WRITE = $NOW + 10;	3483	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2545	write_runtime	3485	write_runtime
2546	or warn "ERROR: unable to write runtime file: $!";	3486	or warn "ERROR: unable to write runtime file: $!";
2547	};	3487	};
2548	}	3488	}
2549		3489
2550	$WAIT_FOR_TICK->broadcast;
2551	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2552
2553	# my $AFTER = Event::time;	3490	# my $AFTER = Event::time;
2554	# warn $AFTER - $NOW;#d#	3491	# warn $AFTER - $NOW;#d#
2555		3492
		3493	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3494	$sig->send;
		3495	}
		3496	while (my $sig = shift @WAIT_FOR_TICK) {
		3497	$sig->send;
		3498	}
		3499
		3500	$NOW = Event::time;
		3501
2556	# if we are delayed by four ticks or more, skip them all	3502	# if we are delayed by four ticks or more, skip them all
2557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3503	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2558		3504
2559	$TICK_WATCHER->at ($NEXT_TICK);	3505	$TICK_WATCHER->at ($NEXT_TICK);
2560	$TICK_WATCHER->start;	3506	$TICK_WATCHER->start;
		3507
		3508	$LOAD = ($NOW - $tick_start) / $TICK;
		3509	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3510
		3511	_post_tick;
		3512
		3513
2561	},	3514	},
2562	);	3515	);
2563		3516
2564	{	3517	{
2565	BDB::max_poll_time $TICK * 0.1;	3518	BDB::max_poll_time $TICK * 0.1;
…		…
2593		3546
2594	cf::sync_job {	3547	cf::sync_job {
2595	eval {	3548	eval {
2596	BDB::db_env_open	3549	BDB::db_env_open
2597	$DB_ENV,	3550	$DB_ENV,
2598	$BDB_ENV_DIR,	3551	$BDBDIR,
2599	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3552	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2600	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3553	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2601	0666;	3554	0666;
2602		3555
2603	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3556	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2604		3557
2605	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3558	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2606	$DB_ENV->set_lk_detect;	3559	$DB_ENV->set_lk_detect;
2607	};	3560	};
2608		3561
…		…
2624	prio => 6,	3577	prio => 6,
2625	cb => \&IO::AIO::poll_cb,	3578	cb => \&IO::AIO::poll_cb,
2626	);	3579	);
2627	}	3580	}
2628		3581
		3582	my $_log_backtrace;
		3583
		3584	sub _log_backtrace {
		3585	my ($msg, @addr) = @_;
		3586
		3587	$msg =~ s/\n//;
		3588
		3589	# limit the # of concurrent backtraces
		3590	if ($_log_backtrace < 2) {
		3591	++$_log_backtrace;
		3592	async {
		3593	my @bt = fork_call {
		3594	@addr = map { sprintf "%x", $_ } @addr;
		3595	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3596	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3597	or die "addr2line: $!";
		3598
		3599	my @funcs;
		3600	my @res = <$fh>;
		3601	chomp for @res;
		3602	while (@res) {
		3603	my ($func, $line) = splice @res, 0, 2, ();
		3604	push @funcs, "[$func] $line";
		3605	}
		3606
		3607	@funcs
		3608	};
		3609
		3610	LOG llevInfo, "[ABT] $msg\n";
		3611	LOG llevInfo, "[ABT] $_\n" for @bt;
		3612	--$_log_backtrace;
		3613	};
		3614	} else {
		3615	LOG llevInfo, "[ABT] $msg\n";
		3616	LOG llevInfo, "[ABT] [suppressed]\n";
		3617	}
		3618	}
		3619
		3620	# load additional modules
		3621	use cf::pod;
		3622
2629	END { cf::emergency_save }	3623	END { cf::emergency_save }
2630		3624
2631	1	3625	1
2632		3626

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