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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.178 by root, Thu Jan 18 00:06:55 2007 UTC vs.
Revision 1.316 by root, Mon Jul 23 21:02:50 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 3.4 ();	15	use Coro 3.61 ();
		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;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
26		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		43
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
33		46
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
38		53
39	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
43		59
		60	our $RELOAD; # number of reloads so far
44	our @EVENT;	61	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		62
47	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	76	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	79	our $NEXT_TICK;
52	our $NOW;	80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
53		85
54	our %CFG;	86	our %CFG;
55		87
56	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	89	our $RUNTIME;
58		90
59	our %PLAYER; # all users	91	our %PLAYER; # all users
60	our %MAP; # all maps	92	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	93	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		94
67	# used to convert map paths into valid unix filenames by replacing / by ∕	95	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
		101
70	binmode STDOUT;	102	binmode STDOUT;
71	binmode STDERR;	103	binmode STDERR;
72		104
73	# read virtual server time, if available	105	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
78	}	110	}
79		111
80	mkdir cf::localdir;	112	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		114
86	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
87		118
88	#############################################################################	119	#############################################################################
89		120
90	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
91		122
…		…
98	=item $cf::RUNTIME	129	=item $cf::RUNTIME
99		130
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	132	every server tick.
102		133
103	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		137
105	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
107		142
108	=item $cf::NOW	143	=item $cf::NOW
109		144
110	The time of the last (current) server tick.	145	The time of the last (current) server tick.
111		146
112	=item $cf::TICK	147	=item $cf::TICK
113		148
114	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
115		160
116	=item %cf::CFG	161	=item %cf::CFG
117		162
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	164	from wherever your confdir points to.
120		165
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		167
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	169	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
127		177
128	=back	178	=back
129		179
130	=cut	180	=cut
131		181
132	BEGIN {	182	BEGIN {
133	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	184	my $msg = join "", @_;
135	utf8::encode $msg;
136		185
137	$msg .= "\n"	186	$msg .= "\n"
138	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
139		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
140	LOG llevError, $msg;	192	LOG llevError, $msg;
141	};	193	};
142	}	194	}
143		195
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@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';
149	@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)
150		203
151	# 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
152	# within the Safe compartment.	205	# within the Safe compartment.
153	for my $pkg (qw(	206	for my $pkg (qw(
154	cf::global cf::attachable	207	cf::global cf::attachable
…		…
162	}	215	}
163		216
164	$Event::DIED = sub {	217	$Event::DIED = sub {
165	warn "error in event callback: @_";	218	warn "error in event callback: @_";
166	};	219	};
		220
		221	#############################################################################
167		222
168	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
169		224
170	=over 4	225	=over 4
171		226
…		…
190	$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;
191	$d	246	$d
192	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
193	}	248	}
194		249
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
198		251
199	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
200		253
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
209		255
210	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
211		257
212	=cut	258	=cut
213		259
214	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
216	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
217	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
218		264
219	=item cf::lock_wait $string	265	=item cf::lock_wait $string
220		266
221	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
222		268
…		…
228	returned.	274	returned.
229		275
230	Lock names should begin with a unique identifier (for example, cf::map::find	276	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
232		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
233	=cut	283	=cut
234		284
235	our %LOCK;	285	our %LOCK;
236		286
237	sub lock_wait($) {	287	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
258	}	308	}
259	}	309	}
260		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
261	sub freeze_mainloop {	317	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
263		319
264	my $guard = Coro::guard {	320	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	321	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	322	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
270	$guard	324	$guard
		325	}
		326
		327	=item cf::get_slot $time[, $priority[, $name]]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	The optional C<$name> can be used to identify the job to run. It might be
		334	used for statistical purposes and should identify the same time-class.
		335
		336	Useful for short background jobs.
		337
		338	=cut
		339
		340	our @SLOT_QUEUE;
		341	our $SLOT_QUEUE;
		342
		343	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		344	$SLOT_QUEUE = Coro::async {
		345	my $signal = new Coro::Signal;
		346
		347	while () {
		348	next_job:
		349	my $avail = cf::till_tick;
		350	if ($avail > 0.01) {
		351	for (0 .. $#SLOT_QUEUE) {
		352	if ($SLOT_QUEUE[$_][0] < $avail) {
		353	my $job = splice @SLOT_QUEUE, $_, 1, ();
		354	$job->[2]->send;
		355	Coro::cede;
		356	goto next_job;
		357	}
		358	}
		359	}
		360
		361	if (@SLOT_QUEUE) {
		362	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		363	push @cf::WAIT_FOR_TICK, $signal;
		364	$signal->wait;
		365	} else {
		366	Coro::schedule;
		367	}
		368	}
		369	};
		370
		371	sub get_slot($;$$) {
		372	my ($time, $pri, $name) = @_;
		373
		374	$time = $TICK * .6 if $time > $TICK * .6;
		375	my $sig = new Coro::Signal;
		376
		377	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		378	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		379	$SLOT_QUEUE->ready;
		380	$sig->wait;
271	}	381	}
272		382
273	=item cf::async { BLOCK }	383	=item cf::async { BLOCK }
274		384
275	Currently the same as Coro::async_pool, meaning you cannot use	385	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		390
281	BEGIN { *async = \&Coro::async_pool }	391	BEGIN { *async = \&Coro::async_pool }
282		392
283	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
284		394
285	The design of crossfire+ requires that the main coro ($Coro::main) is	395	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	396	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	397	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		398	acceptable.
288		399
289	If it must be done, put the blocking parts into C<sync_job>. This will run	400	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	401	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	402	server will be frozen during this time, so the block should either finish
292	fast or be very important.	403	fast or be very important.
…		…
295		406
296	sub sync_job(&) {	407	sub sync_job(&) {
297	my ($job) = @_;	408	my ($job) = @_;
298		409
299	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
300	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
302		415
303	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	417	# (but this is cancel-safe)
…		…
315		428
316	while ($busy) {	429	while ($busy) {
317	Coro::cede or Event::one_event;	430	Coro::cede or Event::one_event;
318	}	431	}
319		432
		433	$time = Event::time - $time;
		434
		435	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		436	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		437
		438	$tick_start += $time; # do not account sync jobs to server load
		439
320	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
321	} else {	441	} else {
322	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
323		443
324	$job->()	444	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
344		464
345	$coro	465	$coro
346	}	466	}
347		467
348	sub write_runtime {	468	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		469
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
352	or return;	471	process, returning the results. Everything must be serialisable with
		472	Coro::Storable. May, of course, block. Note that the executed sub may
		473	never block itself or use any form of Event handling.
353		474
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	475	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		476
358	aio_fsync $fh	477	sub _store_scalar {
359	and return;	478	open my $fh, ">", \my $buf
360		479	or die "fork_call: cannot open fh-to-buf in child : $!";
		480	Storable::store_fd $_[0], $fh;
361	close $fh	481	close $fh;
362	or return;
363		482
364	aio_rename "$runtime~", $runtime	483	$buf
365	and return;	484	}
366		485
		486	sub fork_call(&@) {
		487	my ($cb, @args) = @_;
		488
		489	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		490	# or die "socketpair: $!";
		491	pipe my $fh1, my $fh2
		492	or die "pipe: $!";
		493
		494	if (my $pid = fork) {
		495	close $fh2;
		496
		497	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		498	warn "pst<$res>" unless $res =~ /^pst/;
		499	$res = Coro::Storable::thaw $res;
		500
		501	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		502
		503	Carp::confess $$res unless "ARRAY" eq ref $res;
		504
		505	return wantarray ? @$res : $res->[-1];
		506	} else {
		507	reset_signals;
		508	local $SIG{__WARN__};
		509	local $SIG{__DIE__};
		510	# just in case, this hack effectively disables event
		511	# in the child. cleaner and slower would be canceling all watchers,
		512	# but this works for the time being.
		513	local $Coro::idle;
		514	$Coro::current->prio (Coro::PRIO_MAX);
		515
		516	eval {
		517	close $fh1;
		518
		519	my @res = eval { $cb->(@args) };
		520
		521	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		522	close $fh2;
		523	};
		524
		525	warn $@ if $@;
		526	_exit 0;
367	1	527	}
		528	}
		529
		530	=item $value = cf::db_get $family => $key
		531
		532	Returns a single value from the environment database.
		533
		534	=item cf::db_put $family => $key => $value
		535
		536	Stores the given C<$value> in the family. It can currently store binary
		537	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		538
		539	=cut
		540
		541	our $DB;
		542
		543	sub db_init {
		544	unless ($DB) {
		545	$DB = BDB::db_create $DB_ENV;
		546
		547	cf::sync_job {
		548	eval {
		549	$DB->set_flags (BDB::CHKSUM);
		550
		551	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		552	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		553	cf::cleanup "db_open(db): $!" if $!;
		554	};
		555	cf::cleanup "db_open(db): $@" if $@;
		556	};
		557	}
		558	}
		559
		560	sub db_get($$) {
		561	my $key = "$_[0]/$_[1]";
		562
		563	cf::sync_job {
		564	BDB::db_get $DB, undef, $key, my $data;
		565
		566	$! ? ()
		567	: $data
		568	}
		569	}
		570
		571	sub db_put($$$) {
		572	BDB::dbreq_pri 4;
		573	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		574	}
		575
		576	=item cf::cache $id => [$paths...], $processversion => $process
		577
		578	Generic caching function that returns the value of the resource $id,
		579	caching and regenerating as required.
		580
		581	This function can block.
		582
		583	=cut
		584
		585	sub cache {
		586	my ($id, $src, $processversion, $process) = @_;
		587
		588	my $meta =
		589	join "\x00",
		590	$processversion,
		591	map {
		592	aio_stat $_
		593	and Carp::croak "$_: $!";
		594
		595	($_, (stat _)[7,9])
		596	} @$src;
		597
		598	my $dbmeta = db_get cache => "$id/meta";
		599	if ($dbmeta ne $meta) {
		600	# changed, we may need to process
		601
		602	my @data;
		603	my $md5;
		604
		605	for (0 .. $#$src) {
		606	0 <= aio_load $src->[$_], $data[$_]
		607	or Carp::croak "$src->[$_]: $!";
		608	}
		609
		610	# if processing is expensive, check
		611	# checksum first
		612	if (1) {
		613	$md5 =
		614	join "\x00",
		615	$processversion,
		616	map {
		617	Coro::cede;
		618	($src->[$_], Digest::MD5::md5_hex $data[$_])
		619	} 0.. $#$src;
		620
		621
		622	my $dbmd5 = db_get cache => "$id/md5";
		623	if ($dbmd5 eq $md5) {
		624	db_put cache => "$id/meta", $meta;
		625
		626	return db_get cache => "$id/data";
		627	}
		628	}
		629
		630	my $t1 = Time::HiRes::time;
		631	my $data = $process->(\@data);
		632	my $t2 = Time::HiRes::time;
		633
		634	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		635
		636	db_put cache => "$id/data", $data;
		637	db_put cache => "$id/md5" , $md5;
		638	db_put cache => "$id/meta", $meta;
		639
		640	return $data;
		641	}
		642
		643	db_get cache => "$id/data"
		644	}
		645
		646	=item cf::datalog type => key => value, ...
		647
		648	Log a datalog packet of the given type with the given key-value pairs.
		649
		650	=cut
		651
		652	sub datalog($@) {
		653	my ($type, %kv) = @_;
		654	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	655	}
369		656
370	=back	657	=back
371		658
372	=cut	659	=cut
…		…
379	attach callbacks/event handlers (a collection of which is called an "attachment")	666	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
381		668
382	In the following description, CLASS can be any of C<global>, C<object>	669	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	670	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	671	Crossfire TRT).
385		672
386	=over 4	673	=over 4
387		674
388	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
389		676
…		…
552	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
553		840
554	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
555	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
556	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558		845
559	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
560	my $pkg = shift @arg;	847	my $pkg = shift @arg;
561		848
562	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
591	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
592	}	879	}
593		880
594	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
595	} else {	882	} else {
596	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
597	}	884	}
598		885
599	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
600	}	887	}
601		888
…		…
603	if (ref $_[0]) {	890	if (ref $_[0]) {
604	_object_attach @_;	891	_object_attach @_;
605	} else {	892	} else {
606	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
607	}	894	}
		895	_recalc_want;
608	};	896	};
609		897
610	# all those should be optimised	898	# all those should be optimised
611	sub cf::attachable::detach {	899	sub cf::attachable::detach {
612	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
615	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
616	reattach ($obj);	904	reattach ($obj);
617	} else {	905	} else {
618	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
619	}	907	}
		908	_recalc_want;
620	};	909	};
621		910
622	sub cf::attachable::attached {	911	sub cf::attachable::attached {
623	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
624		913
…		…
639	";	928	";
640	die if $@;	929	die if $@;
641	}	930	}
642		931
643	our $override;	932	our $override;
644	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	933	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
645		934
646	sub override {	935	sub override {
647	$override = 1;	936	$override = 1;
648	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
649	}	938	}
650		939
651	sub do_invoke {	940	sub do_invoke {
652	my $event = shift;	941	my $event = shift;
653	my $callbacks = shift;	942	my $callbacks = shift;
654		943
655	@invoke_results = ();	944	@INVOKE_RESULTS = ();
656		945
657	local $override;	946	local $override;
658		947
659	for (@$callbacks) {	948	for (@$callbacks) {
660	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
677		966
678	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
679		968
680	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
681	removed in future versions), and there is no public API to access override	970	removed in future versions), and there is no public API to access override
682	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
683		972
684	=back	973	=back
685		974
686	=cut	975	=cut
687		976
688	#############################################################################	977	#############################################################################
689	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
690		990
691	sub reattach {	991	sub reattach {
692	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
693	my ($obj) = @_;	993	my ($obj) = @_;
694		994
…		…
747	$filename, length $$rdata, scalar @$objs;	1047	$filename, length $$rdata, scalar @$objs;
748		1048
749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
752	aio_fsync $fh;	1052	aio_fsync $fh if $cf::USE_FSYNC;
753	close $fh;	1053	close $fh;
754		1054
755	if (@$objs) {	1055	if (@$objs) {
756	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1056	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
757	chmod SAVE_MODE, $fh;	1057	chmod SAVE_MODE, $fh;
758	my $data = Storable::nfreeze { version => 1, objs => $objs };	1058	my $data = Storable::nfreeze { version => 1, objs => $objs };
759	aio_write $fh, 0, (length $data), $data, 0;	1059	aio_write $fh, 0, (length $data), $data, 0;
760	aio_fsync $fh;	1060	aio_fsync $fh if $cf::USE_FSYNC;
761	close $fh;	1061	close $fh;
762	aio_rename "$filename.pst~", "$filename.pst";	1062	aio_rename "$filename.pst~", "$filename.pst";
763	}	1063	}
764	} else {	1064	} else {
765	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
…		…
797	or return;	1097	or return;
798	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
799	}	1099	}
800		1100
801	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
802	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
803	return ($data, $av);	1103	return ($data, $av);
804	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
805		1111
806	#############################################################################	1112	#############################################################################
807	# command handling &c	1113	# command handling &c
808		1114
809	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1129	}
824		1130
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
826		1132
827	Register a callbackf ro execution when the client sends an extcmd packet.	1133	Register a callback for execution when the client sends an (synchronous)
		1134	extcmd packet. Ext commands will be processed in the order they are
		1135	received by the server, like other user commands. The first argument is
		1136	the logged-in player. Ext commands can only be processed after a player
		1137	has logged in successfully.
828		1138
829	If the callback returns something, it is sent back as if reply was being	1139	If the callback returns something, it is sent back as if reply was being
830	called.	1140	called.
831		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
832	=cut	1153	=cut
833		1154
834	sub register_extcmd {	1155	sub register_extcmd {
835	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
836		1157
837	$EXTCMD{$name} = $cb;	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
838	}	1165	}
839		1166
840	cf::player->attach (	1167	cf::player->attach (
841	on_command => sub {	1168	on_command => sub {
842	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
851	cf::override;	1178	cf::override;
852	},	1179	},
853	on_extcmd => sub {	1180	on_extcmd => sub {
854	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
855		1182
856	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
857		1184
858	if (ref $msg) {	1185	if (ref $msg) {
		1186	my ($type, $reply, @payload) =
		1187	"ARRAY" eq ref $msg
		1188	? @$msg
		1189	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1190
859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
860	if (my %reply = $cb->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
861	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
862	}	1195	if $reply;
863	}	1196	}
864	} else {	1197	} else {
865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
866	}	1199	}
867		1200
868	cf::override;	1201	cf::override;
869	},	1202	},
870	);	1203	);
871		1204
872	sub load_extension {
873	my ($path) = @_;
874
875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
876	my $base = $1;
877	my $pkg = $1;
878	$pkg =~ s/[^[:word:]]/_/g;
879	$pkg = "ext::$pkg";
880
881	warn "... loading '$path' into '$pkg'\n";
882
883	open my $fh, "<:utf8", $path
884	or die "$path: $!";
885
886	my $source =
887	"package $pkg; use strict; use utf8;\n"
888	. "#line 1 \"$path\"\n{\n"
889	. (do { local $/; <$fh> })
890	. "\n};\n1";
891
892	unless (eval $source) {
893	my $msg = $@ ? "$path: $@\n"
894	: "extension disabled.\n";
895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
896	warn $@;
897	warn "mandatory extension failed to load, exiting.\n";
898	exit 1;
899	}
900	die $@;
901	}
902
903	push @EXTS, $pkg;
904	}
905
906	sub load_extensions {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
907	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
908	next unless -r $ext;	1210	next unless -r $path;
909	eval {	1211
910	load_extension $ext;	1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
911	1	1269	}
912	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
913	}	1275	};
914	}	1276	}
915		1277
916	#############################################################################	1278	#############################################################################
917		1279
		1280	=back
		1281
918	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
919		1283
920	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
921		1285
922	=cut	1286	=cut
…		…
934	Returns the given player object, loading it if necessary (might block).	1298	Returns the given player object, loading it if necessary (might block).
935		1299
936	=cut	1300	=cut
937		1301
938	sub playerdir($) {	1302	sub playerdir($) {
939	cf::localdir	1303	"$PLAYERDIR/"
940	. "/"
941	. cf::playerdir
942	. "/"
943	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1304	. (ref $_[0] ? $_[0]->ob->name : $_[0])
944	}	1305	}
945		1306
946	sub path($) {	1307	sub path($) {
947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1308	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948		1309
949	(playerdir $login) . "/$login.pl"	1310	(playerdir $login) . "/playerdata"
950	}	1311	}
951		1312
952	sub find_active($) {	1313	sub find_active($) {
953	$cf::PLAYER{$_[0]}	1314	$cf::PLAYER{$_[0]}
954	and $cf::PLAYER{$_[0]}->active	1315	and $cf::PLAYER{$_[0]}->active
…		…
957		1318
958	sub exists($) {	1319	sub exists($) {
959	my ($login) = @_;	1320	my ($login) = @_;
960		1321
961	$cf::PLAYER{$login}	1322	$cf::PLAYER{$login}
962	or cf::sync_job { !aio_stat $login }	1323	or cf::sync_job { !aio_stat path $login }
963	}	1324	}
964		1325
965	sub find($) {	1326	sub find($) {
966	return $cf::PLAYER{$_[0]} || do {	1327	return $cf::PLAYER{$_[0]} || do {
967	my $login = $_[0];	1328	my $login = $_[0];
968		1329
969	my $guard = cf::lock_acquire "user_find:$login";	1330	my $guard = cf::lock_acquire "user_find:$login";
970		1331
971	$cf::PLAYER{$_[0]} || do {	1332	$cf::PLAYER{$_[0]} || do {
		1333	# rename old playerfiles to new ones
		1334	#TODO: remove when no longer required
		1335	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1336	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1337	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1338	aio_unlink +(playerdir $login) . "/$login.pl";
		1339
972	my $pl = load_pl path $login	1340	my $pl = load_pl path $login
973	or return;	1341	or return;
974	$cf::PLAYER{$login} = $pl	1342	$cf::PLAYER{$login} = $pl
975	}	1343	}
976	}	1344	}
…		…
1013		1381
1014	=cut	1382	=cut
1015		1383
1016	sub quit_character {	1384	sub quit_character {
1017	my ($pl) = @_;	1385	my ($pl) = @_;
		1386
		1387	my $name = $pl->ob->name;
1018		1388
1019	$pl->{deny_save} = 1;	1389	$pl->{deny_save} = 1;
1020	$pl->password ("*"); # this should lock out the player until we nuked the dir	1390	$pl->password ("*"); # this should lock out the player until we nuked the dir
1021		1391
1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1392	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1027	my $path = playerdir $pl;	1397	my $path = playerdir $pl;
1028	my $temp = "$path~$cf::RUNTIME~deleting~";	1398	my $temp = "$path~$cf::RUNTIME~deleting~";
1029	aio_rename $path, $temp;	1399	aio_rename $path, $temp;
1030	delete $cf::PLAYER{$pl->ob->name};	1400	delete $cf::PLAYER{$pl->ob->name};
1031	$pl->destroy;	1401	$pl->destroy;
		1402
		1403	my $prefix = qr<^~\Q$name\E/>;
		1404
		1405	# nuke player maps
		1406	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1407
1032	IO::AIO::aio_rmtree $temp;	1408	IO::AIO::aio_rmtree $temp;
		1409	}
		1410
		1411	=item $pl->kick
		1412
		1413	Kicks a player out of the game. This destroys the connection.
		1414
		1415	=cut
		1416
		1417	sub kick {
		1418	my ($pl, $kicker) = @_;
		1419
		1420	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1421	$pl->killer ("kicked");
		1422	$pl->ns->destroy;
1033	}	1423	}
1034		1424
1035	=item cf::player::list_logins	1425	=item cf::player::list_logins
1036		1426
1037	Returns am arrayref of all valid playernames in the system, can take a	1427	Returns am arrayref of all valid playernames in the system, can take a
1038	while and may block, so not sync_job-capable, ever.	1428	while and may block, so not sync_job-capable, ever.
1039		1429
1040	=cut	1430	=cut
1041		1431
1042	sub list_logins {	1432	sub list_logins {
1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1433	my $dirs = aio_readdir $PLAYERDIR
1044	or return [];	1434	or return [];
1045		1435
1046	my @logins;	1436	my @logins;
1047		1437
1048	for my $login (@$dirs) {	1438	for my $login (@$dirs) {
…		…
1065	=cut	1455	=cut
1066		1456
1067	sub maps($) {	1457	sub maps($) {
1068	my ($pl) = @_;	1458	my ($pl) = @_;
1069		1459
		1460	$pl = ref $pl ? $pl->ob->name : $pl;
		1461
1070	my $files = aio_readdir playerdir $pl	1462	my $files = aio_readdir playerdir $pl
1071	or return;	1463	or return;
1072		1464
1073	my @paths;	1465	my @paths;
1074		1466
1075	for (@$files) {	1467	for (@$files) {
1076	utf8::decode $_;	1468	utf8::decode $_;
1077	next if /\.(?:pl|pst)$/;	1469	next if /\.(?:pl|pst)$/;
1078	next unless /^$PATH_SEP/o;	1470	next unless /^$PATH_SEP/o;
1079		1471
1080	s/\.map$//;	1472	push @paths, cf::map::normalise "~$pl/$_";
1081	push @paths, "~" . $pl->ob->name . "/" . $_;
1082	}	1473	}
1083		1474
1084	\@paths	1475	\@paths
1085	}	1476	}
1086		1477
		1478	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1479
		1480	Expand crossfire pod fragments into protocol xml.
		1481
		1482	=cut
		1483
		1484	sub expand_cfpod {
		1485	((my $self), (local $_)) = @_;
		1486
		1487	# escape & and <
		1488	s/&/&amp;/g;
		1489	s/(?<![BIUGH])</&lt;/g;
		1490
		1491	# this is buggy, it needs to properly take care of nested <'s
		1492
		1493	1 while
		1494	# replace B<>, I<>, U<> etc.
		1495	s/B<([^\>]*)>/<b>$1<\/b>/
		1496	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1497	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1498	# replace G<male|female> tags
		1499	|| s{G<([^>|]*)\|([^>]*)>}{
		1500	$self->gender ? $2 : $1
		1501	}ge
		1502	# replace H<hint text>
		1503	|| s{H<([^\>]*)>}
		1504	{
		1505	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1506	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1507	"")
		1508	[$self->{hintmode}]
		1509	}ge;
		1510
		1511	# create single paragraphs (very hackish)
		1512	s/(?<=\S)\n(?=\w)/ /g;
		1513
		1514	# compress some whitespace
		1515	s/\s+\n/\n/g; # ws line-ends
		1516	s/\n\n+/\n/g; # double lines
		1517	s/^\n+//; # beginning lines
		1518	s/\n+$//; # ending lines
		1519
		1520	$_
		1521	}
		1522
		1523	sub hintmode {
		1524	$_[0]{hintmode} = $_[1] if @_ > 1;
		1525	$_[0]{hintmode}
		1526	}
		1527
1087	=item $player->ext_reply ($msgid, $msgtype, %msg)	1528	=item $player->ext_reply ($msgid, @msg)
1088		1529
1089	Sends an ext reply to the player.	1530	Sends an ext reply to the player.
1090		1531
1091	=cut	1532	=cut
1092		1533
1093	sub ext_reply($$$%) {	1534	sub ext_reply($$@) {
1094	my ($self, $id, %msg) = @_;	1535	my ($self, $id, @msg) = @_;
1095		1536
1096	$msg{msgid} = $id;	1537	if ($self->ns->extcmd == 2) {
1097		1538	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
1098	$self->send ("ext " . cf::to_json \%msg);	1539	} elsif ($self->ns->extcmd == 1) {
		1540	#TODO: version 1, remove
		1541	unshift @msg, msgtype => "reply", msgid => $id;
		1542	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1543	}
1099	}	1544	}
1100		1545
1101	package cf;	1546	=item $player->ext_msg ($type, @msg)
		1547
		1548	Sends an ext event to the client.
		1549
		1550	=cut
		1551
		1552	sub ext_msg($$@) {
		1553	my ($self, $type, @msg) = @_;
		1554
		1555	$self->ns->ext_msg ($type, @msg);
		1556	}
		1557
		1558	=head3 cf::region
		1559
		1560	=over 4
		1561
		1562	=cut
		1563
		1564	package cf::region;
		1565
		1566	=item cf::region::find_by_path $path
		1567
		1568	Tries to decuce the likely region for a map knowing only its path.
		1569
		1570	=cut
		1571
		1572	sub find_by_path($) {
		1573	my ($path) = @_;
		1574
		1575	my ($match, $specificity);
		1576
		1577	for my $region (list) {
		1578	if ($region->{match} && $path =~ $region->{match}) {
		1579	($match, $specificity) = ($region, $region->specificity)
		1580	if $region->specificity > $specificity;
		1581	}
		1582	}
		1583
		1584	$match
		1585	}
1102		1586
1103	=back	1587	=back
1104
1105		1588
1106	=head3 cf::map	1589	=head3 cf::map
1107		1590
1108	=over 4	1591	=over 4
1109		1592
…		…
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1620	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region}), $rmp->{custom}	1621	(cf::region::find $rmp->{region}), $rmp->{custom}
1139	)	1622	)
1140	}	1623	}
1141		1624
		1625	=item cf::map->register ($regex, $prio)
		1626
		1627	Register a handler for the map path matching the given regex at the
		1628	givne priority (higher is better, built-in handlers have priority 0, the
		1629	default).
		1630
		1631	=cut
		1632
1142	sub register {	1633	sub register {
1143	my (undef, $regex) = @_;	1634	my (undef, $regex, $prio) = @_;
1144	my $pkg = caller;	1635	my $pkg = caller;
1145		1636
1146	no strict;	1637	no strict;
1147	push @{"$pkg\::ISA"}, __PACKAGE__;	1638	push @{"$pkg\::ISA"}, __PACKAGE__;
1148		1639
1149	$EXT_MAP{$pkg} = qr<$regex>;	1640	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150	}	1641	}
1151		1642
1152	# also paths starting with '/'	1643	# also paths starting with '/'
1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1644	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1154		1645
1155	sub thawer_merge {	1646	sub thawer_merge {
1156	my ($self, $merge) = @_;	1647	my ($self, $merge) = @_;
1157		1648
1158	# we have to keep some variables in memory intact	1649	# we have to keep some variables in memory intact
1159	local $self->{path};	1650	local $self->{path};
1160	local $self->{load_path};	1651	local $self->{load_path};
1161	local $self->{deny_save};
1162	local $self->{deny_reset};
1163		1652
1164	$self->SUPER::thawer_merge ($merge);	1653	$self->SUPER::thawer_merge ($merge);
1165	}	1654	}
1166		1655
1167	sub normalise {	1656	sub normalise {
1168	my ($path, $base) = @_;	1657	my ($path, $base) = @_;
		1658
		1659	$path = "$path"; # make sure its a string
		1660
		1661	$path =~ s/\.map$//;
1169		1662
1170	# map plan:	1663	# map plan:
1171	#	1664	#
1172	# /! non-realised random map exit (special hack!)	1665	# /! non-realised random map exit (special hack!)
1173	# {... are special paths that are not being touched	1666	# {... are special paths that are not being touched
…		…
1201		1694
1202	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1695	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1203		1696
1204	$path = normalise $path, $base;	1697	$path = normalise $path, $base;
1205		1698
1206	for my $pkg (keys %EXT_MAP) {	1699	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1207	if ($path =~ $EXT_MAP{$pkg}) {	1700	if ($path =~ $EXT_MAP{$pkg}[1]) {
1208	my $self = bless cf::map::new, $pkg;	1701	my $self = bless cf::map::new, $pkg;
1209	$self->{path} = $path; $self->path ($path);	1702	$self->{path} = $path; $self->path ($path);
1210	$self->init; # pass $1 etc.	1703	$self->init; # pass $1 etc.
1211	return $self;	1704	return $self;
1212	}	1705	}
1213	}	1706	}
1214		1707
1215	Carp::carp "unable to resolve path '$path'.";	1708	Carp::cluck "unable to resolve path '$path' (base '$base').";
1216	()	1709	()
1217	}	1710	}
1218		1711
1219	sub init {	1712	sub init {
1220	my ($self) = @_;	1713	my ($self) = @_;
…		…
1235		1728
1236	# the original (read-only) location	1729	# the original (read-only) location
1237	sub load_path {	1730	sub load_path {
1238	my ($self) = @_;	1731	my ($self) = @_;
1239		1732
1240	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1733	"$MAPDIR/$self->{path}.map"
1241	}	1734	}
1242		1735
1243	# the temporary/swap location	1736	# the temporary/swap location
1244	sub save_path {	1737	sub save_path {
1245	my ($self) = @_;	1738	my ($self) = @_;
1246		1739
1247	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1740	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1248	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1741	"$TMPDIR/$path.map"
1249	}	1742	}
1250		1743
1251	# the unique path, undef == no special unique path	1744	# the unique path, undef == no special unique path
1252	sub uniq_path {	1745	sub uniq_path {
1253	my ($self) = @_;	1746	my ($self) = @_;
1254		1747
1255	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1748	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1256	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1749	"$UNIQUEDIR/$path"
1257	}	1750	}
1258		1751
1259	# and all this just because we cannot iterate over	1752	# and all this just because we cannot iterate over
1260	# all maps in C++...	1753	# all maps in C++...
1261	sub change_all_map_light {	1754	sub change_all_map_light {
…		…
1263		1756
1264	$_->change_map_light ($change)	1757	$_->change_map_light ($change)
1265	for grep $_->outdoor, values %cf::MAP;	1758	for grep $_->outdoor, values %cf::MAP;
1266	}	1759	}
1267		1760
		1761	sub decay_objects {
		1762	my ($self) = @_;
		1763
		1764	return if $self->{deny_reset};
		1765
		1766	$self->do_decay_objects;
		1767	}
		1768
1268	sub unlink_save {	1769	sub unlink_save {
1269	my ($self) = @_;	1770	my ($self) = @_;
1270		1771
1271	utf8::encode (my $save = $self->save_path);	1772	utf8::encode (my $save = $self->save_path);
1272	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1773	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1275		1776
1276	sub load_header_from($) {	1777	sub load_header_from($) {
1277	my ($self, $path) = @_;	1778	my ($self, $path) = @_;
1278		1779
1279	utf8::encode $path;	1780	utf8::encode $path;
1280	aio_open $path, O_RDONLY, 0	1781	#aio_open $path, O_RDONLY, 0
1281	or return;	1782	# or return;
1282		1783
1283	$self->_load_header ($path)	1784	$self->_load_header ($path)
1284	or return;	1785	or return;
1285		1786
1286	$self->{load_path} = $path;	1787	$self->{load_path} = $path;
1287		1788
1288	1	1789	1
1289	}	1790	}
1290		1791
1291	sub load_orig {	1792	sub load_header_orig {
1292	my ($self) = @_;	1793	my ($self) = @_;
1293		1794
1294	$self->load_header_from ($self->load_path)	1795	$self->load_header_from ($self->load_path)
1295	}	1796	}
1296		1797
1297	sub load_temp {	1798	sub load_header_temp {
1298	my ($self) = @_;	1799	my ($self) = @_;
1299		1800
1300	$self->load_header_from ($self->save_path)	1801	$self->load_header_from ($self->save_path)
		1802	}
		1803
		1804	sub prepare_temp {
		1805	my ($self) = @_;
		1806
		1807	$self->last_access ((delete $self->{last_access})
		1808	|| $cf::RUNTIME); #d#
		1809	# safety
		1810	$self->{instantiate_time} = $cf::RUNTIME
		1811	if $self->{instantiate_time} > $cf::RUNTIME;
		1812	}
		1813
		1814	sub prepare_orig {
		1815	my ($self) = @_;
		1816
		1817	$self->{load_original} = 1;
		1818	$self->{instantiate_time} = $cf::RUNTIME;
		1819	$self->last_access ($cf::RUNTIME);
		1820	$self->instantiate;
1301	}	1821	}
1302		1822
1303	sub load_header {	1823	sub load_header {
1304	my ($self) = @_;	1824	my ($self) = @_;
1305		1825
1306	if ($self->load_temp) {	1826	if ($self->load_header_temp) {
1307	$self->last_access ((delete $self->{last_access})	1827	$self->prepare_temp;
1308	|| $cf::RUNTIME); #d#
1309	# safety
1310	$self->{instantiate_time} = $cf::RUNTIME
1311	if $self->{instantiate_time} > $cf::RUNTIME;
1312	} else {	1828	} else {
1313	$self->load_orig	1829	$self->load_header_orig
1314	or return;	1830	or return;
1315		1831	$self->prepare_orig;
1316	$self->{load_original} = 1;
1317	$self->{instantiate_time} = $cf::RUNTIME;
1318	$self->last_access ($cf::RUNTIME);
1319	$self->instantiate;
1320	}	1832	}
		1833
		1834	$self->{deny_reset} = 1
		1835	if $self->no_reset;
		1836
		1837	$self->default_region (cf::region::find_by_path $self->{path})
		1838	unless $self->default_region;
1321		1839
1322	1	1840	1
1323	}	1841	}
1324		1842
1325	sub find;	1843	sub find;
…		…
1338	$map->{last_save} = $cf::RUNTIME;	1856	$map->{last_save} = $cf::RUNTIME;
1339		1857
1340	$map->load_header	1858	$map->load_header
1341	or return;	1859	or return;
1342		1860
1343	if ($map->should_reset) {	1861	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1862	# doing this can freeze the server in a sync job, obviously
1344	$cf::WAIT_FOR_TICK->wait;	1863	#$cf::WAIT_FOR_TICK->wait;
1345	$map->reset;	1864	$map->reset;
1346	undef $guard;	1865	undef $guard;
1347	$map = find $path	1866	return find $path;
1348	or return;
1349	}	1867	}
1350		1868
1351	$cf::MAP{$path} = $map	1869	$cf::MAP{$path} = $map
1352	}	1870	}
1353	}	1871	}
		1872
		1873	sub pre_load { }
		1874	sub post_load { }
1354		1875
1355	sub load {	1876	sub load {
1356	my ($self) = @_;	1877	my ($self) = @_;
1357		1878
		1879	local $self->{deny_reset} = 1; # loading can take a long time
		1880
1358	my $path = $self->{path};	1881	my $path = $self->{path};
		1882
		1883	{
1359	my $guard = cf::lock_acquire "map_load:$path";	1884	my $guard = cf::lock_acquire "map_load:$path";
1360		1885
1361	return if $self->in_memory != cf::MAP_SWAPPED;	1886	return if $self->in_memory != cf::MAP_SWAPPED;
1362		1887
1363	$self->in_memory (cf::MAP_LOADING);	1888	$self->in_memory (cf::MAP_LOADING);
1364		1889
1365	$self->alloc;	1890	$self->alloc;
1366	$self->_load_objects ($self->{load_path}, 1)
1367	or return;
1368		1891
1369	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1892	$self->pre_load;
1370	if delete $self->{load_original};
1371
1372	if (my $uniq = $self->uniq_path) {
1373	utf8::encode $uniq;
1374	if (aio_open $uniq, O_RDONLY, 0) {
1375	$self->clear_unique_items;
1376	$self->_load_objects ($uniq, 0);
1377	}
1378	}
1379
1380	Coro::cede;
1381
1382	# now do the right thing for maps
1383	$self->link_multipart_objects;
1384
1385	unless ($self->{deny_activate}) {
1386	$self->decay_objects;
1387	$self->fix_auto_apply;
1388	$self->update_buttons;
1389	Coro::cede;	1893	Coro::cede;
1390	$self->set_darkness_map;	1894
		1895	$self->_load_objects ($self->{load_path}, 1)
		1896	or return;
		1897
		1898	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1899	if delete $self->{load_original};
		1900
		1901	if (my $uniq = $self->uniq_path) {
		1902	utf8::encode $uniq;
		1903	if (aio_open $uniq, O_RDONLY, 0) {
		1904	$self->clear_unique_items;
		1905	$self->_load_objects ($uniq, 0);
		1906	}
		1907	}
		1908
		1909	Coro::cede;
		1910	# now do the right thing for maps
		1911	$self->link_multipart_objects;
1391	$self->difficulty ($self->estimate_difficulty)	1912	$self->difficulty ($self->estimate_difficulty)
1392	unless $self->difficulty;	1913	unless $self->difficulty;
1393	Coro::cede;	1914	Coro::cede;
		1915
		1916	unless ($self->{deny_activate}) {
		1917	$self->decay_objects;
		1918	$self->fix_auto_apply;
		1919	$self->update_buttons;
		1920	Coro::cede;
		1921	$self->set_darkness_map;
		1922	Coro::cede;
1394	$self->activate;	1923	$self->activate;
1395	}	1924	}
1396		1925
1397	$self->in_memory (cf::MAP_IN_MEMORY);	1926	$self->in_memory (cf::MAP_IN_MEMORY);
		1927	}
		1928
		1929	$self->post_load;
1398	}	1930	}
1399		1931
1400	sub customise_for {	1932	sub customise_for {
1401	my ($self, $ob) = @_;	1933	my ($self, $ob) = @_;
1402		1934
1403	return find "~" . $ob->name . "/" . $self->{path}	1935	return find "~" . $ob->name . "/" . $self->{path}
1404	if $self->per_player;	1936	if $self->per_player;
		1937
		1938	# return find "?party/" . $ob->name . "/" . $self->{path}
		1939	# if $self->per_party;
1405		1940
1406	$self	1941	$self
1407	}	1942	}
1408		1943
1409	# find and load all maps in the 3x3 area around a map	1944	# find and load all maps in the 3x3 area around a map
…		…
1441		1976
1442	cf::sync_job { $map->load };	1977	cf::sync_job { $map->load };
1443	}	1978	}
1444		1979
1445	our %MAP_PREFETCH;	1980	our %MAP_PREFETCH;
1446	our $MAP_PREFETCHER = Coro::async {	1981	our $MAP_PREFETCHER = undef;
1447	while () {
1448	for my $path (keys %MAP_PREFETCH) {
1449	my $map = find $path
1450	or next;
1451	$map->load;
1452
1453	delete $MAP_PREFETCH{$path};
1454	}
1455	Coro::schedule;
1456	}
1457	};
1458		1982
1459	sub find_async {	1983	sub find_async {
1460	my ($path, $origin) = @_;	1984	my ($path, $origin) = @_;
1461		1985
1462	$path = normalise $path, $origin && $origin->{path};	1986	$path = normalise $path, $origin && $origin->{path};
1463		1987
1464	if (my $map = $cf::MAP{$path}) {	1988	if (my $map = $cf::MAP{$path}) {
1465	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1989	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1466	}	1990	}
1467		1991
1468	$MAP_PREFETCH{$path} = 0;	1992	undef $MAP_PREFETCH{$path};
		1993	$MAP_PREFETCHER ||= cf::async {
		1994	while (%MAP_PREFETCH) {
		1995	for my $path (keys %MAP_PREFETCH) {
		1996	if (my $map = find $path) {
		1997	$map->load;
		1998	}
		1999
		2000	delete $MAP_PREFETCH{$path};
		2001	}
		2002	}
		2003	undef $MAP_PREFETCHER;
		2004	};
1469	$MAP_PREFETCHER->ready;	2005	$MAP_PREFETCHER->prio (6);
1470		2006
1471	()	2007	()
1472	}	2008	}
1473		2009
1474	sub save {	2010	sub save {
…		…
1519		2055
1520	sub reset_at {	2056	sub reset_at {
1521	my ($self) = @_;	2057	my ($self) = @_;
1522		2058
1523	# TODO: safety, remove and allow resettable per-player maps	2059	# TODO: safety, remove and allow resettable per-player maps
1524	return 1e99 if $self->isa ("ext::map_per_player");#d#
1525	return 1e99 if $self->{deny_reset};	2060	return 1e99 if $self->{deny_reset};
1526		2061
1527	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2062	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1528	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2063	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1529		2064
…		…
1540	my ($self) = @_;	2075	my ($self) = @_;
1541		2076
1542	my $lock = cf::lock_acquire "map_data:$self->{path}";	2077	my $lock = cf::lock_acquire "map_data:$self->{path}";
1543		2078
1544	return if $self->players;	2079	return if $self->players;
1545	return if $self->isa ("ext::map_per_player");#d#
1546		2080
1547	warn "resetting map ", $self->path;#d#	2081	warn "resetting map ", $self->path;
		2082
		2083	$self->in_memory (cf::MAP_SWAPPED);
		2084
		2085	# need to save uniques path
		2086	unless ($self->{deny_save}) {
		2087	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2088
		2089	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2090	if $uniq;
		2091	}
1548		2092
1549	delete $cf::MAP{$self->path};	2093	delete $cf::MAP{$self->path};
1550		2094
1551	$self->in_memory (cf::MAP_SWAPPED);
1552	$self->clear;	2095	$self->clear;
1553		2096
1554	$_->clear_links_to ($self) for values %cf::MAP;	2097	$_->clear_links_to ($self) for values %cf::MAP;
1555		2098
1556	$self->unlink_save;	2099	$self->unlink_save;
…		…
1575	$cf::MAP{$self->path} = $self;	2118	$cf::MAP{$self->path} = $self;
1576		2119
1577	$self->reset; # polite request, might not happen	2120	$self->reset; # polite request, might not happen
1578	}	2121	}
1579		2122
		2123	=item $maps = cf::map::tmp_maps
		2124
		2125	Returns an arrayref with all map paths of currently instantiated and saved
		2126	maps. May block.
		2127
		2128	=cut
		2129
		2130	sub tmp_maps() {
		2131	[
		2132	map {
		2133	utf8::decode $_;
		2134	/\.map$/
		2135	? normalise $_
		2136	: ()
		2137	} @{ aio_readdir $TMPDIR or [] }
		2138	]
		2139	}
		2140
		2141	=item $maps = cf::map::random_maps
		2142
		2143	Returns an arrayref with all map paths of currently instantiated and saved
		2144	random maps. May block.
		2145
		2146	=cut
		2147
		2148	sub random_maps() {
		2149	[
		2150	map {
		2151	utf8::decode $_;
		2152	/\.map$/
		2153	? normalise "?random/$_"
		2154	: ()
		2155	} @{ aio_readdir $RANDOMDIR or [] }
		2156	]
		2157	}
		2158
1580	=item cf::map::unique_maps	2159	=item cf::map::unique_maps
1581		2160
1582	Returns an arrayref of paths of all shared maps that have	2161	Returns an arrayref of paths of all shared maps that have
1583	instantiated unique items. May block.	2162	instantiated unique items. May block.
1584		2163
1585	=cut	2164	=cut
1586		2165
1587	sub unique_maps() {	2166	sub unique_maps() {
1588	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2167	[
1589	or return;	2168	map {
1590
1591	my @paths;
1592
1593	for (@$files) {
1594	utf8::decode $_;	2169	utf8::decode $_;
1595	next if /\.pst$/;
1596	next unless /^$PATH_SEP/o;
1597
1598	s/\.map$//;	2170	/\.map$/
1599	push @paths, $_;	2171	? normalise $_
		2172	: ()
		2173	} @{ aio_readdir $UNIQUEDIR or [] }
1600	}	2174	]
1601
1602	\@paths
1603	}	2175	}
1604		2176
1605	package cf;	2177	package cf;
1606		2178
1607	=back	2179	=back
…		…
1653		2225
1654	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2226	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1655		2227
1656	if ($self->{record_replies}) {	2228	if ($self->{record_replies}) {
1657	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2229	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2230
1658	} else {	2231	} else {
		2232	my $pl = $self->contr;
		2233
		2234	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2235	my $dialog = $pl->{npc_dialog};
		2236	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2237
		2238	} else {
1659	$msg = $npc->name . " says: $msg" if $npc;	2239	$msg = $npc->name . " says: $msg" if $npc;
1660	$self->message ($msg, $flags);	2240	$self->message ($msg, $flags);
		2241	}
1661	}	2242	}
1662	}	2243	}
1663		2244
1664	=item $player_object->may ("access")	2245	=item $player_object->may ("access")
1665		2246
…		…
1698	=cut	2279	=cut
1699		2280
1700	sub link_map {	2281	sub link_map {
1701	unless ($LINK_MAP) {	2282	unless ($LINK_MAP) {
1702	$LINK_MAP = cf::map::find "{link}"	2283	$LINK_MAP = cf::map::find "{link}"
1703	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2284	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1704	$LINK_MAP->load;	2285	$LINK_MAP->load;
1705	}	2286	}
1706		2287
1707	$LINK_MAP	2288	$LINK_MAP
1708	}	2289	}
…		…
1713	$self->deactivate_recursive;	2294	$self->deactivate_recursive;
1714		2295
1715	return if UNIVERSAL::isa $self->map, "ext::map_link";	2296	return if UNIVERSAL::isa $self->map, "ext::map_link";
1716		2297
1717	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2298	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1718	if $self->map;	2299	if $self->map && $self->map->{path} ne "{link}";
1719		2300
1720	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2301	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1721	}	2302	}
1722		2303
1723	sub cf::object::player::leave_link {	2304	sub cf::object::player::leave_link {
1724	my ($self, $map, $x, $y) = @_;	2305	my ($self, $map, $x, $y) = @_;
		2306
		2307	return unless $self->contr->active;
1725		2308
1726	my $link_pos = delete $self->{_link_pos};	2309	my $link_pos = delete $self->{_link_pos};
1727		2310
1728	unless ($map) {	2311	unless ($map) {
1729	# restore original map position	2312	# restore original map position
…		…
1747	$map->load;	2330	$map->load;
1748	$map->load_diag;	2331	$map->load_diag;
1749		2332
1750	return unless $self->contr->active;	2333	return unless $self->contr->active;
1751	$self->activate_recursive;	2334	$self->activate_recursive;
		2335
		2336	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1752	$self->enter_map ($map, $x, $y);	2337	$self->enter_map ($map, $x, $y);
1753	}	2338	}
1754		2339
1755	cf::player->attach (	2340	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1756	on_logout => sub {
1757	my ($pl) = @_;
1758		2341
1759	# abort map switching before logout	2342	Moves the player to the given map-path and coordinates by first freezing
1760	if ($pl->ob->{_link_pos}) {	2343	her, loading and preparing them map, calling the provided $check callback
1761	cf::sync_job {	2344	that has to return the map if sucecssful, and then unfreezes the player on
1762	$pl->ob->leave_link	2345	the new (success) or old (failed) map position. In either case, $done will
1763	};	2346	be called at the end of this process.
1764	}
1765	},
1766	on_login => sub {
1767	my ($pl) = @_;
1768		2347
1769	# try to abort aborted map switching on player login :)
1770	# should happen only on crashes
1771	if ($pl->ob->{_link_pos}) {
1772	$pl->ob->enter_link;
1773	(async {
1774	# we need this sleep as the login has a concurrent enter_exit running
1775	# and this sleep increases chances of the player not ending up in scorn
1776	$pl->ob->reply (undef,
1777	"There was an internal problem at your last logout, "
1778	. "the server will try to bring you to your intended destination in a second.",
1779	cf::NDI_RED);
1780	Coro::Timer::sleep 1;
1781	$pl->ob->leave_link;
1782	})->prio (2);
1783	}
1784	},
1785	);
1786
1787	=item $player_object->goto ($path, $x, $y)
1788
1789	=cut	2348	=cut
		2349
		2350	our $GOTOGEN;
1790		2351
1791	sub cf::object::player::goto {	2352	sub cf::object::player::goto {
1792	my ($self, $path, $x, $y) = @_;	2353	my ($self, $path, $x, $y, $check, $done) = @_;
		2354
		2355	# do generation counting so two concurrent goto's will be executed in-order
		2356	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1793		2357
1794	$self->enter_link;	2358	$self->enter_link;
1795		2359
1796	(async {	2360	(async {
		2361	my $map = eval {
1797	my $map = cf::map::find $path;	2362	my $map = cf::map::find $path;
		2363
		2364	if ($map) {
1798	$map = $map->customise_for ($self) if $map;	2365	$map = $map->customise_for ($self);
1799		2366	$map = $check->($map) if $check && $map;
1800	# warn "entering ", $map->path, " at ($x, $y)\n"	2367	} else {
1801	# if $map;
1802
1803	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2368	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2369	}
1804		2370
		2371	$map
		2372	};
		2373
		2374	if ($@) {
		2375	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2376	LOG llevError | logBacktrace, Carp::longmess $@;
		2377	}
		2378
		2379	if ($gen == $self->{_goto_generation}) {
		2380	delete $self->{_goto_generation};
1805	$self->leave_link ($map, $x, $y);	2381	$self->leave_link ($map, $x, $y);
		2382	}
		2383
		2384	$done->() if $done;
1806	})->prio (1);	2385	})->prio (1);
1807	}	2386	}
1808		2387
1809	=item $player_object->enter_exit ($exit_object)	2388	=item $player_object->enter_exit ($exit_object)
1810		2389
…		…
1812		2391
1813	sub parse_random_map_params {	2392	sub parse_random_map_params {
1814	my ($spec) = @_;	2393	my ($spec) = @_;
1815		2394
1816	my $rmp = { # defaults	2395	my $rmp = { # defaults
1817	xsize => -1,	2396	xsize => (cf::rndm 15, 40),
1818	ysize => -1,	2397	ysize => (cf::rndm 15, 40),
		2398	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2399	#layout => string,
1819	};	2400	};
1820		2401
1821	for (split /\n/, $spec) {	2402	for (split /\n/, $spec) {
1822	my ($k, $v) = split /\s+/, $_, 2;	2403	my ($k, $v) = split /\s+/, $_, 2;
1823		2404
…		…
1827	$rmp	2408	$rmp
1828	}	2409	}
1829		2410
1830	sub prepare_random_map {	2411	sub prepare_random_map {
1831	my ($exit) = @_;	2412	my ($exit) = @_;
		2413
		2414	my $guard = cf::lock_acquire "exit_prepare:$exit";
1832		2415
1833	# all this does is basically replace the /! path by	2416	# all this does is basically replace the /! path by
1834	# a new random map path (?random/...) with a seed	2417	# a new random map path (?random/...) with a seed
1835	# that depends on the exit object	2418	# that depends on the exit object
1836		2419
1837	my $rmp = parse_random_map_params $exit->msg;	2420	my $rmp = parse_random_map_params $exit->msg;
1838		2421
1839	if ($exit->map) {	2422	if ($exit->map) {
1840	$rmp->{region} = $exit->map->region_name;	2423	$rmp->{region} = $exit->region->name;
1841	$rmp->{origin_map} = $exit->map->path;	2424	$rmp->{origin_map} = $exit->map->path;
1842	$rmp->{origin_x} = $exit->x;	2425	$rmp->{origin_x} = $exit->x;
1843	$rmp->{origin_y} = $exit->y;	2426	$rmp->{origin_y} = $exit->y;
1844	}	2427	}
1845		2428
1846	$rmp->{random_seed} ||= $exit->random_seed;	2429	$rmp->{random_seed} ||= $exit->random_seed;
1847		2430
1848	my $data = cf::to_json $rmp;	2431	my $data = cf::to_json $rmp;
1849	my $md5 = Digest::MD5::md5_hex $data;	2432	my $md5 = Digest::MD5::md5_hex $data;
1850	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2433	my $meta = "$RANDOMDIR/$md5.meta";
1851		2434
1852	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2435	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1853	aio_write $fh, 0, (length $data), $data, 0;	2436	aio_write $fh, 0, (length $data), $data, 0;
1854	undef $fh;	2437	undef $fh;
1855	aio_rename "$meta~", $meta;	2438	aio_rename "$meta~", $meta;
…		…
1862	sub cf::object::player::enter_exit {	2445	sub cf::object::player::enter_exit {
1863	my ($self, $exit) = @_;	2446	my ($self, $exit) = @_;
1864		2447
1865	return unless $self->type == cf::PLAYER;	2448	return unless $self->type == cf::PLAYER;
1866		2449
		2450	if ($exit->slaying eq "/!") {
		2451	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2452	# the problem is that $exit might not survive long enough
		2453	# so it needs to be done right now, right here
		2454	cf::sync_job { prepare_random_map $exit };
		2455	}
		2456
		2457	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2458	my $hp = $exit->stats->hp;
		2459	my $sp = $exit->stats->sp;
		2460
1867	$self->enter_link;	2461	$self->enter_link;
		2462
		2463	# if exit is damned, update players death & WoR home-position
		2464	$self->contr->savebed ($slaying, $hp, $sp)
		2465	if $exit->flag (FLAG_DAMNED);
1868		2466
1869	(async {	2467	(async {
1870	$self->deactivate_recursive; # just to be sure	2468	$self->deactivate_recursive; # just to be sure
1871	unless (eval {	2469	unless (eval {
1872	prepare_random_map $exit	2470	$self->goto ($slaying, $hp, $sp);
1873	if $exit->slaying eq "/!";
1874
1875	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1876	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1877		2471
1878	1;	2472	1;
1879	}) {	2473	}) {
1880	$self->message ("Something went wrong deep within the crossfire server. "	2474	$self->message ("Something went wrong deep within the crossfire server. "
1881	. "I'll try to bring you back to the map you were before. "	2475	. "I'll try to bring you back to the map you were before. "
1882	. "Please report this to the dungeon master!",	2476	. "Please report this to the dungeon master!",
1883	cf::NDI_UNIQUE | cf::NDI_RED);	2477	cf::NDI_UNIQUE | cf::NDI_RED);
1884		2478
1885	warn "ERROR in enter_exit: $@";	2479	warn "ERROR in enter_exit: $@";
1886	$self->leave_link;	2480	$self->leave_link;
1887	}	2481	}
1888	})->prio (1);	2482	})->prio (1);
…		…
1901		2495
1902	sub cf::client::send_drawinfo {	2496	sub cf::client::send_drawinfo {
1903	my ($self, $text, $flags) = @_;	2497	my ($self, $text, $flags) = @_;
1904		2498
1905	utf8::encode $text;	2499	utf8::encode $text;
1906	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2500	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1907	}	2501	}
1908		2502
		2503	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2504
		2505	Send a drawinfo or msg packet to the client, formatting the msg for the
		2506	client if neccessary. C<$type> should be a string identifying the type of
		2507	the message, with C<log> being the default. If C<$color> is negative, suppress
		2508	the message unless the client supports the msg packet.
		2509
		2510	=cut
		2511
		2512	sub cf::client::send_msg {
		2513	my ($self, $channel, $msg, $color, @extra) = @_;
		2514
		2515	$msg = $self->pl->expand_cfpod ($msg);
		2516
		2517	$color &= ~cf::NDI_UNIQUE; # just in case...
		2518
		2519	if (ref $channel) {
		2520	# send meta info to client, if not yet sent
		2521	unless (exists $self->{channel}{$channel->{id}}) {
		2522	$self->{channel}{$channel->{id}} = $channel;
		2523	$self->ext_msg (channel_info => %$channel);
		2524	}
		2525
		2526	$channel = $channel->{id};
		2527	}
		2528
		2529	return unless @extra || length $msg;
		2530
		2531	if ($self->can_msg) {
		2532	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2533	} else {
		2534	# replace some tags by gcfclient-compatible ones
		2535	for ($msg) {
		2536	1 while
		2537	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2538	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2539	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2540	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2541	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2542	}
		2543
		2544	if ($color >= 0) {
		2545	if (0 && $msg =~ /\[/) {
		2546	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2547	} else {
		2548	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2549	$self->send_packet ("drawinfo $color $msg")
		2550	}
		2551	}
		2552	}
		2553	}
		2554
		2555	=item $client->ext_msg ($type, @msg)
		2556
		2557	Sends an ext event to the client.
		2558
		2559	=cut
		2560
		2561	sub cf::client::ext_msg($$@) {
		2562	my ($self, $type, @msg) = @_;
		2563
		2564	my $extcmd = $self->extcmd;
		2565
		2566	if ($extcmd == 2) {
		2567	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2568	} elsif ($extcmd == 1) { # TODO: remove
		2569	push @msg, msgtype => "event_$type";
		2570	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2571	}
		2572	}
1909		2573
1910	=item $success = $client->query ($flags, "text", \&cb)	2574	=item $success = $client->query ($flags, "text", \&cb)
1911		2575
1912	Queues a query to the client, calling the given callback with	2576	Queues a query to the client, calling the given callback with
1913	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2577	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1914	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2578	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1915		2579
1916	Queries can fail, so check the return code. Or don't, as queries will become	2580	Queries can fail, so check the return code. Or don't, as queries will
1917	reliable at some point in the future.	2581	become reliable at some point in the future.
1918		2582
1919	=cut	2583	=cut
1920		2584
1921	sub cf::client::query {	2585	sub cf::client::query {
1922	my ($self, $flags, $text, $cb) = @_;	2586	my ($self, $flags, $text, $cb) = @_;
…		…
1930	utf8::encode $text;	2594	utf8::encode $text;
1931	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1932		2596
1933	$self->send_packet ($self->{query_queue}[0][0])	2597	$self->send_packet ($self->{query_queue}[0][0])
1934	if @{ $self->{query_queue} } == 1;	2598	if @{ $self->{query_queue} } == 1;
		2599
		2600	1
1935	}	2601	}
1936		2602
1937	cf::client->attach (	2603	cf::client->attach (
		2604	on_connect => sub {
		2605	my ($ns) = @_;
		2606
		2607	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2608	},
1938	on_reply => sub {	2609	on_reply => sub {
1939	my ($ns, $msg) = @_;	2610	my ($ns, $msg) = @_;
1940		2611
1941	# this weird shuffling is so that direct followup queries	2612	# this weird shuffling is so that direct followup queries
1942	# get handled first	2613	# get handled first
1943	my $queue = delete $ns->{query_queue}	2614	my $queue = delete $ns->{query_queue}
1944	or return; # be conservative, not sure how that can happen, but we saw a crash here	2615	or return; # be conservative, not sure how that can happen, but we saw a crash here
1945		2616
1946	(shift @$queue)->[1]->($msg);	2617	(shift @$queue)->[1]->($msg);
		2618	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1947		2619
1948	push @{ $ns->{query_queue} }, @$queue;	2620	push @{ $ns->{query_queue} }, @$queue;
1949		2621
1950	if (@{ $ns->{query_queue} } == @$queue) {	2622	if (@{ $ns->{query_queue} } == @$queue) {
1951	if (@$queue) {	2623	if (@$queue) {
…		…
1953	} else {	2625	} else {
1954	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2626	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1955	}	2627	}
1956	}	2628	}
1957	},	2629	},
		2630	on_exticmd => sub {
		2631	my ($ns, $buf) = @_;
		2632
		2633	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2634
		2635	if (ref $msg) {
		2636	my ($type, $reply, @payload) =
		2637	"ARRAY" eq ref $msg
		2638	? @$msg
		2639	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2640
		2641	if (my $cb = $EXTICMD{$type}) {
		2642	my @reply = $cb->($ns, @payload);
		2643
		2644	$ns->ext_reply ($reply, @reply)
		2645	if $reply;
		2646	}
		2647	} else {
		2648	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2649	}
		2650
		2651	cf::override;
		2652	},
1958	);	2653	);
1959		2654
1960	=item $client->async (\&cb)	2655	=item $client->async (\&cb)
1961		2656
1962	Create a new coroutine, running the specified callback. The coroutine will	2657	Create a new coroutine, running the specified callback. The coroutine will
…		…
2009		2704
2010	# here we export the classes and methods available to script code	2705	# here we export the classes and methods available to script code
2011		2706
2012	=pod	2707	=pod
2013		2708
2014	The following fucntions and emthods are available within a safe environment:	2709	The following functions and methods are available within a safe environment:
2015		2710
2016	cf::object contr pay_amount pay_player map	2711	cf::object
		2712	contr pay_amount pay_player map x y force_find force_add
		2713	insert remove
		2714
2017	cf::object::player player	2715	cf::object::player
2018	cf::player peaceful	2716	player
2019	cf::map trigger	2717
		2718	cf::player
		2719	peaceful
		2720
		2721	cf::map
		2722	trigger
2020		2723
2021	=cut	2724	=cut
2022		2725
2023	for (	2726	for (
2024	["cf::object" => qw(contr pay_amount pay_player map)],	2727	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2728	insert remove)],
2025	["cf::object::player" => qw(player)],	2729	["cf::object::player" => qw(player)],
2026	["cf::player" => qw(peaceful)],	2730	["cf::player" => qw(peaceful)],
2027	["cf::map" => qw(trigger)],	2731	["cf::map" => qw(trigger)],
2028	) {	2732	) {
2029	no strict 'refs';	2733	no strict 'refs';
…		…
2100	=back	2804	=back
2101		2805
2102	=cut	2806	=cut
2103		2807
2104	#############################################################################	2808	#############################################################################
		2809	# the server's init and main functions
2105		2810
2106	=head2 EXTENSION DATABASE SUPPORT	2811	sub load_facedata($) {
		2812	my ($path) = @_;
2107		2813
2108	Crossfire maintains a very simple database for extension use. It can	2814	warn "loading facedata from $path\n";
2109	currently store anything that can be serialised using Storable, which
2110	excludes objects.
2111		2815
2112	The parameter C<$family> should best start with the name of the extension	2816	my $facedata;
2113	using it, it should be unique.	2817	0 < aio_load $path, $facedata
		2818	or die "$path: $!";
2114		2819
2115	=over 4	2820	$facedata = Coro::Storable::thaw $facedata;
2116		2821
2117	=item $hashref = cf::db_get $family	2822	$facedata->{version} == 2
		2823	or cf::cleanup "$path: version mismatch, cannot proceed.";
2118		2824
2119	Return a hashref for use by the extension C<$family>, which can be
2120	modified. After modifications, you have to call C<cf::db_dirty> or
2121	C<cf::db_sync>.
2122
2123	=item $value = cf::db_get $family => $key
2124
2125	Returns a single value from the database
2126
2127	=item cf::db_put $family => $hashref
2128
2129	Stores the given family hashref into the database. Updates are delayed, if
2130	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2131
2132	=item cf::db_put $family => $key => $value
2133
2134	Stores the given C<$value> in the family hash. Updates are delayed, if you
2135	want the data to be synced to disk immediately, use C<cf::db_sync>.
2136
2137	=item cf::db_dirty
2138
2139	Marks the database as dirty, to be updated at a later time.
2140
2141	=item cf::db_sync
2142
2143	Immediately write the database to disk I<if it is dirty>.
2144
2145	=cut
2146
2147	our $DB;
2148
2149	{
2150	my $path = cf::localdir . "/database.pst";
2151
2152	sub db_load() {
2153	$DB = stat $path ? Storable::retrieve $path : { };
2154	}	2825	{
		2826	my $faces = $facedata->{faceinfo};
2155		2827
2156	my $pid;	2828	while (my ($face, $info) = each %$faces) {
		2829	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2830	cf::face::set_visibility $idx, $info->{visibility};
		2831	cf::face::set_magicmap $idx, $info->{magicmap};
		2832	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2833	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2157		2834
2158	sub db_save() {	2835	cf::cede_to_tick;
2159	waitpid $pid, 0 if $pid;
2160	if (0 == ($pid = fork)) {
2161	$DB->{_meta}{version} = 1;
2162	Storable::nstore $DB, "$path~";
2163	rename "$path~", $path;
2164	cf::_exit 0 if defined $pid;
2165	}
2166	}
2167
2168	my $dirty;
2169
2170	sub db_sync() {
2171	db_save if $dirty;
2172	undef $dirty;
2173	}
2174
2175	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2176	db_sync;
2177	});
2178
2179	sub db_dirty() {
2180	$dirty = 1;
2181	$idle->start;
2182	}
2183
2184	sub db_get($;$) {
2185	@_ >= 2
2186	? $DB->{$_[0]}{$_[1]}
2187	: ($DB->{$_[0]} ||= { })
2188	}
2189
2190	sub db_put($$;$) {
2191	if (@_ >= 3) {
2192	$DB->{$_[0]}{$_[1]} = $_[2];
2193	} else {
2194	$DB->{$_[0]} = $_[1];
2195	}
2196	db_dirty;
2197	}
2198
2199	cf::global->attach (
2200	prio => 10000,
2201	on_cleanup => sub {
2202	db_sync;
2203	},	2836	}
2204	);
2205	}
2206		2837
2207	#############################################################################	2838	while (my ($face, $info) = each %$faces) {
2208	# the server's main()	2839	next unless $info->{smooth};
		2840	my $idx = cf::face::find $face
		2841	or next;
		2842	if (my $smooth = cf::face::find $info->{smooth}) {
		2843	cf::face::set_smooth $idx, $smooth;
		2844	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2845	} else {
		2846	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2847	}
		2848
		2849	cf::cede_to_tick;
		2850	}
		2851	}
		2852
		2853	{
		2854	my $anims = $facedata->{animinfo};
		2855
		2856	while (my ($anim, $info) = each %$anims) {
		2857	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2858	cf::cede_to_tick;
		2859	}
		2860
		2861	cf::anim::invalidate_all; # d'oh
		2862	}
		2863
		2864	{
		2865	# TODO: for gcfclient pleasure, we should give resources
		2866	# that gcfclient doesn't grok a >10000 face index.
		2867	my $res = $facedata->{resource};
		2868	my $enc = JSON::XS->new->utf8->canonical;
		2869
		2870	while (my ($name, $info) = each %$res) {
		2871	my $meta = $enc->encode ({
		2872	name => $name,
		2873	type => $info->{type},
		2874	copyright => $info->{copyright}, #TODO#
		2875	});
		2876
		2877	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2878
		2879	if ($name =~ /\.jpg$/) {
		2880	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2881	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2882	} else {
		2883	my $data = pack "(w/a*)*", $meta, $info->{data};
		2884	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2885
		2886	cf::face::set_type $idx, 1;
		2887	cf::face::set_data $idx, 0, $data, $chk;
		2888	}
		2889
		2890	cf::cede_to_tick;
		2891	}
		2892	}
		2893
		2894	1
		2895	}
		2896
		2897	sub reload_regions {
		2898	load_resource_file "$MAPDIR/regions"
		2899	or die "unable to load regions file\n";
		2900
		2901	for (cf::region::list) {
		2902	$_->{match} = qr/$_->{match}/
		2903	if exists $_->{match};
		2904	}
		2905	}
		2906
		2907	sub reload_facedata {
		2908	load_facedata "$DATADIR/facedata"
		2909	or die "unable to load facedata\n";
		2910	}
		2911
		2912	sub reload_archetypes {
		2913	load_resource_file "$DATADIR/archetypes"
		2914	or die "unable to load archetypes\n";
		2915	#d# NEED to laod twice to resolve forward references
		2916	# this really needs to be done in an extra post-pass
		2917	# (which needs to be synchronous, so solve it differently)
		2918	load_resource_file "$DATADIR/archetypes"
		2919	or die "unable to load archetypes\n";
		2920	}
		2921
		2922	sub reload_treasures {
		2923	load_resource_file "$DATADIR/treasures"
		2924	or die "unable to load treasurelists\n";
		2925	}
		2926
		2927	sub reload_resources {
		2928	warn "reloading resource files...\n";
		2929
		2930	reload_regions;
		2931	reload_facedata;
		2932	#reload_archetypes;#d#
		2933	reload_archetypes;
		2934	reload_treasures;
		2935
		2936	warn "finished reloading resource files\n";
		2937	}
		2938
		2939	sub init {
		2940	reload_resources;
		2941	}
2209		2942
2210	sub cfg_load {	2943	sub cfg_load {
2211	open my $fh, "<:utf8", cf::confdir . "/config"	2944	open my $fh, "<:utf8", "$CONFDIR/config"
2212	or return;	2945	or return;
2213		2946
2214	local $/;	2947	local $/;
2215	*CFG = YAML::Syck::Load <$fh>;	2948	*CFG = YAML::Syck::Load <$fh>;
2216		2949
…		…
2236	Event::one_event;	2969	Event::one_event;
2237	})->prio (Coro::PRIO_MAX);	2970	})->prio (Coro::PRIO_MAX);
2238	};	2971	};
2239		2972
2240	cfg_load;	2973	cfg_load;
2241	db_load;	2974	db_init;
2242	load_extensions;	2975	load_extensions;
		2976
		2977	$TICK_WATCHER->start;
2243	Event::loop;	2978	Event::loop;
2244	}	2979	}
2245		2980
2246	#############################################################################	2981	#############################################################################
2247	# initialisation and cleanup	2982	# initialisation and cleanup
2248		2983
2249	# install some emergency cleanup handlers	2984	# install some emergency cleanup handlers
2250	BEGIN {	2985	BEGIN {
2251	for my $signal (qw(INT HUP TERM)) {	2986	for my $signal (qw(INT HUP TERM)) {
2252	Event->signal (	2987	Event->signal (
		2988	reentrant => 0,
2253	data => WF_AUTOCANCEL,	2989	data => WF_AUTOCANCEL,
2254	signal => $signal,	2990	signal => $signal,
		2991	prio => 0,
2255	cb => sub {	2992	cb => sub {
2256	cf::cleanup "SIG$signal";	2993	cf::cleanup "SIG$signal";
2257	},	2994	},
2258	);	2995	);
2259	}	2996	}
		2997	}
		2998
		2999	sub write_runtime {
		3000	my $runtime = "$LOCALDIR/runtime";
		3001
		3002	# first touch the runtime file to show we are still running:
		3003	# the fsync below can take a very very long time.
		3004
		3005	IO::AIO::aio_utime $runtime, undef, undef;
		3006
		3007	my $guard = cf::lock_acquire "write_runtime";
		3008
		3009	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3010	or return;
		3011
		3012	my $value = $cf::RUNTIME + 90 + 10;
		3013	# 10 is the runtime save interval, for a monotonic clock
		3014	# 60 allows for the watchdog to kill the server.
		3015
		3016	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3017	and return;
		3018
		3019	# always fsync - this file is important
		3020	aio_fsync $fh
		3021	and return;
		3022
		3023	# touch it again to show we are up-to-date
		3024	aio_utime $fh, undef, undef;
		3025
		3026	close $fh
		3027	or return;
		3028
		3029	aio_rename "$runtime~", $runtime
		3030	and return;
		3031
		3032	warn "runtime file written.\n";
		3033
		3034	1
2260	}	3035	}
2261		3036
2262	sub emergency_save() {	3037	sub emergency_save() {
2263	my $freeze_guard = cf::freeze_mainloop;	3038	my $freeze_guard = cf::freeze_mainloop;
2264		3039
…		…
2281	my $map = $cf::MAP{$path} or next;	3056	my $map = $cf::MAP{$path} or next;
2282	$map->valid or next;	3057	$map->valid or next;
2283	$map->save;	3058	$map->save;
2284	}	3059	}
2285	warn "end emergency map save\n";	3060	warn "end emergency map save\n";
		3061
		3062	warn "begin emergency database checkpoint\n";
		3063	BDB::db_env_txn_checkpoint $DB_ENV;
		3064	warn "end emergency database checkpoint\n";
2286	};	3065	};
2287		3066
2288	warn "leave emergency perl save\n";	3067	warn "leave emergency perl save\n";
2289	}	3068	}
2290		3069
		3070	sub post_cleanup {
		3071	my ($make_core) = @_;
		3072
		3073	warn Carp::longmess "post_cleanup backtrace"
		3074	if $make_core;
		3075	}
		3076
2291	sub reload() {	3077	sub do_reload_perl() {
2292	# can/must only be called in main	3078	# can/must only be called in main
2293	if ($Coro::current != $Coro::main) {	3079	if ($Coro::current != $Coro::main) {
2294	warn "can only reload from main coroutine\n";	3080	warn "can only reload from main coroutine";
2295	return;	3081	return;
2296	}	3082	}
2297		3083
2298	warn "reloading...";	3084	warn "reloading...";
2299		3085
2300	warn "freezing server";	3086	warn "entering sync_job";
2301	my $guard = freeze_mainloop;	3087
		3088	cf::sync_job {
		3089	cf::write_runtime; # external watchdog should not bark
2302	cf::emergency_save;	3090	cf::emergency_save;
		3091	cf::write_runtime; # external watchdog should not bark
2303		3092
2304	warn "sync database to disk";	3093	warn "syncing database to disk";
2305	cf::db_sync;	3094	BDB::db_env_txn_checkpoint $DB_ENV;
2306	IO::AIO::flush;
2307		3095
2308	eval {
2309	# if anything goes wrong in here, we should simply crash as we already saved	3096	# if anything goes wrong in here, we should simply crash as we already saved
2310		3097
2311	warn "cancel all watchers";	3098	warn "cancelling all WF_AUTOCANCEL watchers";
2312	for (Event::all_watchers) {	3099	for (Event::all_watchers) {
2313	$_->cancel if $_->data & WF_AUTOCANCEL;	3100	$_->cancel if $_->data & WF_AUTOCANCEL;
2314	}	3101	}
2315		3102
		3103	warn "flushing outstanding aio requests";
		3104	for (;;) {
		3105	BDB::flush;
		3106	IO::AIO::flush;
		3107	Coro::cede;
		3108	last unless IO::AIO::nreqs || BDB::nreqs;
		3109	warn "iterate...";
		3110	}
		3111
		3112	++$RELOAD;
		3113
2316	warn "cancel all extension coros";	3114	warn "cancelling all extension coros";
2317	$_->cancel for values %EXT_CORO;	3115	$_->cancel for values %EXT_CORO;
2318	%EXT_CORO = ();	3116	%EXT_CORO = ();
2319		3117
2320	warn "remove commands";	3118	warn "removing commands";
2321	%COMMAND = ();	3119	%COMMAND = ();
2322		3120
2323	warn "remove ext commands";	3121	warn "removing ext/exti commands";
2324	%EXTCMD = ();	3122	%EXTCMD = ();
		3123	%EXTICMD = ();
2325		3124
2326	warn "unload/nuke all extensions";	3125	warn "unloading/nuking all extensions";
2327	for my $pkg (@EXTS) {	3126	for my $pkg (@EXTS) {
2328	warn "... unloading $pkg";	3127	warn "... unloading $pkg";
2329		3128
2330	if (my $cb = $pkg->can ("unload")) {	3129	if (my $cb = $pkg->can ("unload")) {
2331	eval {	3130	eval {
…		…
2336		3135
2337	warn "... nuking $pkg";	3136	warn "... nuking $pkg";
2338	Symbol::delete_package $pkg;	3137	Symbol::delete_package $pkg;
2339	}	3138	}
2340		3139
2341	warn "unload all perl modules loaded from $LIBDIR";	3140	warn "unloading all perl modules loaded from $LIBDIR";
2342	while (my ($k, $v) = each %INC) {	3141	while (my ($k, $v) = each %INC) {
2343	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3142	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2344		3143
2345	warn "removing <$k>";	3144	warn "... unloading $k";
2346	delete $INC{$k};	3145	delete $INC{$k};
2347		3146
2348	$k =~ s/\.pm$//;	3147	$k =~ s/\.pm$//;
2349	$k =~ s/\//::/g;	3148	$k =~ s/\//::/g;
2350		3149
…		…
2353	}	3152	}
2354		3153
2355	Symbol::delete_package $k;	3154	Symbol::delete_package $k;
2356	}	3155	}
2357		3156
2358	warn "get rid of safe::, as good as possible";	3157	warn "getting rid of safe::, as good as possible";
2359	Symbol::delete_package "safe::$_"	3158	Symbol::delete_package "safe::$_"
2360	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3159	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2361		3160
2362	warn "unload cf.pm \"a bit\"";	3161	warn "unloading cf.pm \"a bit\"";
2363	delete $INC{"cf.pm"};	3162	delete $INC{"cf.pm"};
		3163	delete $INC{"cf/pod.pm"};
2364		3164
2365	# don't, removes xs symbols, too,	3165	# don't, removes xs symbols, too,
2366	# and global variables created in xs	3166	# and global variables created in xs
2367	#Symbol::delete_package __PACKAGE__;	3167	#Symbol::delete_package __PACKAGE__;
2368		3168
		3169	warn "unload completed, starting to reload now";
		3170
2369	warn "reloading cf.pm";	3171	warn "reloading cf.pm";
2370	require cf;	3172	require cf;
2371	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3173	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2372		3174
2373	warn "load config and database again";	3175	warn "loading config and database again";
2374	cf::cfg_load;	3176	cf::cfg_load;
2375	cf::db_load;
2376		3177
2377	warn "load extensions";	3178	warn "loading extensions";
2378	cf::load_extensions;	3179	cf::load_extensions;
2379		3180
2380	warn "reattach attachments to objects/players";	3181	warn "reattaching attachments to objects/players";
2381	_global_reattach;	3182	_global_reattach; # objects, sockets
2382	warn "reattach attachments to maps";	3183	warn "reattaching attachments to maps";
2383	reattach $_ for values %MAP;	3184	reattach $_ for values %MAP;
2384	};	3185	warn "reattaching attachments to players";
		3186	reattach $_ for values %PLAYER;
2385		3187
2386	if ($@) {	3188	warn "leaving sync_job";
		3189
		3190	1
		3191	} or do {
2387	warn $@;	3192	warn $@;
2388	warn "error while reloading, exiting.";	3193	warn "error while reloading, exiting.";
2389	exit 1;	3194	exit 1;
2390	}	3195	};
2391		3196
2392	warn "reloaded";	3197	warn "reloaded";
2393	};	3198	};
2394		3199
2395	our $RELOAD_WATCHER; # used only during reload	3200	our $RELOAD_WATCHER; # used only during reload
2396		3201
		3202	sub reload_perl() {
		3203	# doing reload synchronously and two reloads happen back-to-back,
		3204	# coro crashes during coro_state_free->destroy here.
		3205
		3206	$RELOAD_WATCHER ||= Event->timer (
		3207	reentrant => 0,
		3208	after => 0,
		3209	data => WF_AUTOCANCEL,
		3210	cb => sub {
		3211	do_reload_perl;
		3212	undef $RELOAD_WATCHER;
		3213	},
		3214	);
		3215	}
		3216
2397	register_command "reload" => sub {	3217	register_command "reload" => sub {
2398	my ($who, $arg) = @_;	3218	my ($who, $arg) = @_;
2399		3219
2400	if ($who->flag (FLAG_WIZ)) {	3220	if ($who->flag (FLAG_WIZ)) {
2401	$who->message ("reloading server.");	3221	$who->message ("reloading server.");
2402		3222	async { reload_perl };
2403	# doing reload synchronously and two reloads happen back-to-back,
2404	# coro crashes during coro_state_free->destroy here.
2405
2406	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2407	reload;
2408	undef $RELOAD_WATCHER;
2409	});
2410	}	3223	}
2411	};	3224	};
2412		3225
2413	unshift @INC, $LIBDIR;	3226	unshift @INC, $LIBDIR;
2414		3227
		3228	my $bug_warning = 0;
		3229
		3230	our @WAIT_FOR_TICK;
		3231	our @WAIT_FOR_TICK_BEGIN;
		3232
		3233	sub wait_for_tick {
		3234	return unless $TICK_WATCHER->is_active;
		3235	return if $Coro::current == $Coro::main;
		3236
		3237	my $signal = new Coro::Signal;
		3238	push @WAIT_FOR_TICK, $signal;
		3239	$signal->wait;
		3240	}
		3241
		3242	sub wait_for_tick_begin {
		3243	return unless $TICK_WATCHER->is_active;
		3244	return if $Coro::current == $Coro::main;
		3245
		3246	my $signal = new Coro::Signal;
		3247	push @WAIT_FOR_TICK_BEGIN, $signal;
		3248	$signal->wait;
		3249	}
		3250
		3251	my $min = 1e6;#d#
		3252	my $avg = 10;
2415	$TICK_WATCHER = Event->timer (	3253	$TICK_WATCHER = Event->timer (
2416	reentrant => 0,	3254	reentrant => 0,
		3255	parked => 1,
2417	prio => 0,	3256	prio => 0,
2418	at => $NEXT_TICK || $TICK,	3257	at => $NEXT_TICK || $TICK,
2419	data => WF_AUTOCANCEL,	3258	data => WF_AUTOCANCEL,
2420	cb => sub {	3259	cb => sub {
		3260	if ($Coro::current != $Coro::main) {
		3261	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3262	unless ++$bug_warning > 10;
		3263	return;
		3264	}
		3265
2421	$NOW = Event::time;	3266	$NOW = $tick_start = Event::time;
2422		3267
2423	cf::server_tick; # one server iteration	3268	cf::server_tick; # one server iteration
		3269
		3270	0 && sync_job {#d#
		3271	for(1..10) {
		3272	my $t = Event::time;
		3273	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3274	or die;
		3275
		3276	$map->width (50);
		3277	$map->height (50);
		3278	$map->alloc;
		3279	$map->_load_objects ("/tmp/x.map", 1);
		3280	my $t = Event::time - $t;
		3281
		3282	#next unless $t < 0.0013;#d#
		3283	if ($t < $min) {
		3284	$min = $t;
		3285	}
		3286	$avg = $avg * 0.99 + $t * 0.01;
		3287	}
		3288	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3289	exit 0;
		3290	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3291	};
		3292
2424	$RUNTIME += $TICK;	3293	$RUNTIME += $TICK;
2425	$NEXT_TICK += $TICK;	3294	$NEXT_TICK += $TICK;
2426		3295
2427	$WAIT_FOR_TICK->broadcast;	3296	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2428	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3297	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3298	Coro::async_pool {
		3299	write_runtime
		3300	or warn "ERROR: unable to write runtime file: $!";
		3301	};
		3302	}
		3303
		3304	# my $AFTER = Event::time;
		3305	# warn $AFTER - $NOW;#d#
		3306
		3307	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3308	$sig->send;
		3309	}
		3310	while (my $sig = shift @WAIT_FOR_TICK) {
		3311	$sig->send;
		3312	}
		3313
		3314	$NOW = Event::time;
2429		3315
2430	# if we are delayed by four ticks or more, skip them all	3316	# if we are delayed by four ticks or more, skip them all
2431	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3317	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2432		3318
2433	$TICK_WATCHER->at ($NEXT_TICK);	3319	$TICK_WATCHER->at ($NEXT_TICK);
2434	$TICK_WATCHER->start;	3320	$TICK_WATCHER->start;
		3321
		3322	$LOAD = ($NOW - $tick_start) / $TICK;
		3323	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3324
		3325	_post_tick;
		3326
		3327
2435	},	3328	},
2436	);	3329	);
2437		3330
		3331	{
		3332	BDB::max_poll_time $TICK * 0.1;
		3333	$BDB_POLL_WATCHER = Event->io (
		3334	reentrant => 0,
		3335	fd => BDB::poll_fileno,
		3336	poll => 'r',
		3337	prio => 0,
		3338	data => WF_AUTOCANCEL,
		3339	cb => \&BDB::poll_cb,
		3340	);
		3341	BDB::min_parallel 8;
		3342
		3343	BDB::set_sync_prepare {
		3344	my $status;
		3345	my $current = $Coro::current;
		3346	(
		3347	sub {
		3348	$status = $!;
		3349	$current->ready; undef $current;
		3350	},
		3351	sub {
		3352	Coro::schedule while defined $current;
		3353	$! = $status;
		3354	},
		3355	)
		3356	};
		3357
		3358	unless ($DB_ENV) {
		3359	$DB_ENV = BDB::db_env_create;
		3360
		3361	cf::sync_job {
		3362	eval {
		3363	BDB::db_env_open
		3364	$DB_ENV,
		3365	$BDBDIR,
		3366	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3367	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3368	0666;
		3369
		3370	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3371
		3372	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3373	$DB_ENV->set_lk_detect;
		3374	};
		3375
		3376	cf::cleanup "db_env_open(db): $@" if $@;
		3377	};
		3378	}
		3379	}
		3380
		3381	{
		3382	IO::AIO::min_parallel 8;
		3383
		3384	undef $Coro::AIO::WATCHER;
2438	IO::AIO::max_poll_time $TICK * 0.2;	3385	IO::AIO::max_poll_time $TICK * 0.1;
2439
2440	$AIO_POLL_WATCHER = Event->io (	3386	$AIO_POLL_WATCHER = Event->io (
2441	fd => IO::AIO::poll_fileno,	3387	reentrant => 0,
2442	poll => 'r',
2443	prio => 5,
2444	data => WF_AUTOCANCEL,
2445	cb => \&IO::AIO::poll_cb,
2446	);
2447
2448	$WRITE_RUNTIME_WATCHER = Event->timer (
2449	data => WF_AUTOCANCEL,	3388	data => WF_AUTOCANCEL,
2450	after => 0,	3389	fd => IO::AIO::poll_fileno,
2451	interval => 10,	3390	poll => 'r',
2452	cb => sub {	3391	prio => 6,
2453	(Coro::unblock_sub {	3392	cb => \&IO::AIO::poll_cb,
2454	write_runtime	3393	);
2455	or warn "ERROR: unable to write runtime file: $!";	3394	}
		3395
		3396	my $_log_backtrace;
		3397
		3398	sub _log_backtrace {
		3399	my ($msg, @addr) = @_;
		3400
		3401	$msg =~ s/\n//;
		3402
		3403	# limit the # of concurrent backtraces
		3404	if ($_log_backtrace < 2) {
		3405	++$_log_backtrace;
		3406	async {
		3407	my @bt = fork_call {
		3408	@addr = map { sprintf "%x", $_ } @addr;
		3409	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3410	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3411	or die "addr2line: $!";
		3412
		3413	my @funcs;
		3414	my @res = <$fh>;
		3415	chomp for @res;
		3416	while (@res) {
		3417	my ($func, $line) = splice @res, 0, 2, ();
		3418	push @funcs, "[$func] $line";
		3419	}
		3420
		3421	@funcs
		3422	};
		3423
		3424	LOG llevInfo, "[ABT] $msg\n";
		3425	LOG llevInfo, "[ABT] $_\n" for @bt;
		3426	--$_log_backtrace;
2456	})->();	3427	};
		3428	} else {
		3429	LOG llevInfo, "[ABT] $msg\n";
		3430	LOG llevInfo, "[ABT] [suppressed]\n";
2457	},	3431	}
2458	);	3432	}
		3433
		3434	# load additional modules
		3435	use cf::pod;
2459		3436
2460	END { cf::emergency_save }	3437	END { cf::emergency_save }
2461		3438
2462	1	3439	1
2463		3440

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